FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Robichaud, DJ
Scheer, AM
Nimlos, MR
Ellison, GB
AF Robichaud, David J.
Scheer, Adam M.
Nimlos, Mark R.
Ellison, G. B.
TI Development of a REMPI/SPI-TOFMS for the detection of tar formation in
biomass gasification
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Robichaud, David J.; Nimlos, Mark R.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Scheer, Adam M.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Ellison, G. B.] Univ Colorado, Dept Chem, Boulder, CO 80309 USA.
EM david_robichaud@nrel.gov; ascheer1@gmail.com; mark_nimlos@nrel.gov;
barney@jila.colorado.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 85-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803792
ER
PT J
AU Robinson, DB
Fares, SJ
Ong, MD
Arslan, I
Tran, KL
Clift, WM
AF Robinson, David B.
Fares, Stephen J.
Ong, Markus D.
Arslan, Ilke
Tran, Kim L.
Clift, W. Miles
TI Bulk powders of nanoporous palladium and platinum
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Robinson, David B.; Fares, Stephen J.; Ong, Markus D.; Arslan, Ilke; Tran, Kim L.; Clift, W. Miles] Sandia Natl Labs, Energy Syst Dept, Livermore, CA 94551 USA.
EM drobins@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 584-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805697
ER
PT J
AU Robinson, DB
Buffleben, GM
Zuckermann, RN
AF Robinson, David B.
Buffleben, George M.
Zuckermann, Ronald N.
TI Artificial polymers mimic bacteriophage capsid proteins and encapsulate
nucleic acids
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Robinson, David B.; Buffleben, George M.] Sandia Natl Labs, Energy Syst Dept, Livermore, CA 94551 USA.
[Zuckermann, Ronald N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Biol Nanostruct Lab Mol Foundry, Berkeley, CA 94720 USA.
EM drobins@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 206-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803387
ER
PT J
AU Robinson, DB
Wu, CAM
Jacobs, BW
Ong, MD
Tran, KL
Pierson, BE
AF Robinson, David B.
Wu, Chung-An Max
Jacobs, Benjamin W.
Ong, Markus D.
Tran, Kim L.
Pierson, Bonnie E.
TI Nanoporous gold electrodes demonstrate important supercapacitor design
principles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Robinson, David B.; Wu, Chung-An Max; Jacobs, Benjamin W.; Ong, Markus D.; Tran, Kim L.] Sandia Natl Labs, Energy Syst Dept, Livermore, CA 94551 USA.
[Pierson, Bonnie E.] N Carolina State Univ, Raleigh, NC 27695 USA.
NR 0
TC 0
Z9 0
U1 0
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 371-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803380
ER
PT J
AU Rodriguez, JA
AF Rodriguez, Jose A.
TI PHYS 423-Water-gas shift on gold- and copper-oxide catalysts: Active
phase and reaction mechanism
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM rodrigez@bnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 423-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808079
ER
PT J
AU Rosenbaum, E
Shaw, DW
Lynn, RJ
Warzinski, RP
AF Rosenbaum, Eilis
Shaw, David W.
Lynn, Ronald J.
Warzinski, Robert P.
TI Thermal conductivity and thermal diffusivity of methane hydrate using a
single-sided approach
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Rosenbaum, Eilis; Warzinski, Robert P.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Shaw, David W.] Geneva Coll, Dept Engn, Beaver Falls, PA 15010 USA.
[Lynn, Ronald J.] Natl Energy Technol Lab, South Pk, PA 15129 USA.
EM eilis.rosenbaum@netl.doe.gov; dws@geneva.edu; warzinsk@netl.doe.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 67-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803813
ER
PT J
AU Roy, LE
Batista, ER
AF Roy, Lindsay E.
Batista, Enrique R.
TI PHYS 45-Theoretical study on the stability of molecular platinum
catalysts upon irradiation
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Roy, Lindsay E.; Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM lroy@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 45-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808287
ER
PT J
AU Rundberg, RS
AF Rundberg, Robert S.
TI Nuclear isomers: Facts and fiction
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Rundberg, Robert S.] Los Alamos Natl Lab, C INC, Los Alamos, NM 87545 USA.
EM rundberg@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 24-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805849
ER
PT J
AU Salaita, K
Nair, PM
Gray, JW
Groves, JT
AF Salaita, Khalid
Nair, Pradeep M.
Gray, Joe W.
Groves, Jay T.
TI Role of spatial organization in receptor function: Eph-ephrin signaling
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Salaita, Khalid; Nair, Pradeep M.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94706 USA.
[Gray, Joe W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Groves, Jay T.] Univ Calif Berkeley, Dept Chem, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
EM Salaita@berkeley.edu; Pnair@berkeley.edu; JTGroves@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 445-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803429
ER
PT J
AU Sand, A
Goering, J
Burghaus, U
Arey, BW
Eidelman, O
Zak, A
Rosentsveig, R
Tenne, R
AF Sand, A.
Goering, J.
Burghaus, Uwe
Arey, Bruce W.
Eidelman, O.
Zak, A.
Rosentsveig, Rita
Tenne, Reshef
TI PHYS 356-Reactive and nonreactive interactions of thiophene with WS2 and
MoS2 fullerene-like nanoparticles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sand, A.; Goering, J.; Burghaus, Uwe] N Dakota State Univ, Dept Chem & Mol Biol, Fargo, ND 58102 USA.
[Arey, Bruce W.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Eidelman, O.] Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel.
[Zak, A.] NanaoMaterials Ltd, IL-74140 Ness Ziona, Israel.
EM andrew.sand.1@ndsu.edu; John.Goering@ndsu.edu; uwe.burghaus@ndsu.edu;
reshef.tenne@weizmann.ac.il
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 356-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808036
ER
PT J
AU Santra, R
AF Santra, Robin
TI PHYS 443-Multichannel coherence in strong-field ionization
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Santra, Robin] Univ Chicago, Argonne Natl Lab, Argonne, IL 60439 USA.
EM rsantra@anl.gov
RI Santra, Robin/E-8332-2014
OI Santra, Robin/0000-0002-1442-9815
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 443-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808241
ER
PT J
AU Sasaki, D
Liu, HQ
Carroll-Portillo, A
Bachand, GD
Hayden, CC
Abate, EA
AF Sasaki, Darryl
Liu, Haiqing
Carroll-Portillo, Amanda
Bachand, George D.
Hayden, Carl C.
Abate, Elisa A.
TI Lipid nanotube formation from protein-membrane interactions
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Hayden, Carl C.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
EM dysasak@sandia.gov; hqliu@sandia.gov; cchayde@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 407-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803173
ER
PT J
AU Sasaki, D
Hayden, CC
Kent, MS
Hwang, JS
Abate, EA
AF Sasaki, Darryl
Hayden, Carl C.
Kent, Michael S.
Hwang, Jane S.
Abate, Elisa A.
TI Directed formation of lipid membrane microdomains via metal ion
recognition
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Hayden, Carl C.; Hwang, Jane S.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
[Kent, Michael S.] Sandia Natl Labs, Albuquerque, NM 87111 USA.
EM dysasak@sandia.gov; cchayde@sandia.gov; mskent@sandia.gov
NR 0
TC 0
Z9 0
U1 1
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 49-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803171
ER
PT J
AU Sattelberger, A
AF Sattelberger, Al
TI New developments in technetium-99 chemistry
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sattelberger, Al] Argonne Natl Lab, Energy Sci & Engn Directorate, Lemont, IL 60439 USA.
EM asattelberger@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 12-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805834
ER
PT J
AU Saykally, RJ
AF Saykally, Richard J.
TI PHYS 163-X-ray absorption spectroscopy of liquid microjets: A new probe
of ion hydration
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Saykally, Richard J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Saykally, Richard J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
EM saykally@berkeley.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 163-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808150
ER
PT J
AU Scheer, AM
Robichaud, DJ
Ellison, B
Nimlos, MR
AF Scheer, Adam M.
Robichaud, David J.
Ellison, Barney
Nimlos, Mark R.
TI Thermal decomposition of anisole and the methoxyphenols
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Scheer, Adam M.; Ellison, Barney] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Robichaud, David J.; Nimlos, Mark R.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM ascheer1@gmail.com; david_robichaud@nrel.gov; barney@jila.colorado.edu;
mark_nimlos@nrel.gov
NR 0
TC 0
Z9 0
U1 1
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 177-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803799
ER
PT J
AU Schlueter, JA
Halder, GJ
Park, H
AF Schlueter, John A.
Halder, Gregory J.
Park, Hyunsoo
TI Ultramicroporous triazole-based metal organic framework materials
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Schlueter, John A.; Halder, Gregory J.; Park, Hyunsoo] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
EM JASchlueter@anl.gov; halder@anl.gov; hpark@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 320-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805604
ER
PT J
AU Schneider, DA
Huber, DL
Crawford, C
Sanchez, A
AF Schneider, Duane A.
Huber, Dale L.
Crawford, Christine
Sanchez, Arturo
TI Microencapsulation of concentrated sulfuric acid with an epoxy vinyl
ester shell
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Schneider, Duane A.] Sandia Natl Labs, Organ Mat Dept, Albuquerque, NM 87185 USA.
[Huber, Dale L.] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
[Crawford, Christine] Washington State Univ, Dept Chem, Pullman, WA 99164 USA.
[Sanchez, Arturo] Univ Chicago, Dept Chem, Chicago, IL 60637 USA.
[Sanchez, Arturo] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
EM daschne@sandia.gov; dlhuber@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 320-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807387
ER
PT J
AU Schoendorff, GE
Dejong, WA
Gordon, MS
Windus, TL
AF Schoendorff, George E.
deJong, Wibe A.
Gordon, Mark S.
Windus, Theresa L.
TI Theoretical studies of uranyl complexes
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Schoendorff, George E.; Windus, Theresa L.] Iowa State Univ, Dept Chem, Ames, IA 50014 USA.
[deJong, Wibe A.] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
[Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM gschoend@iastate.edu; bert.dejong@pnl.gov; mark@si.msg.chem.iastate.edu;
theresa@fi.ameslab.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 222-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803465
ER
PT J
AU Schwantes, JM
Douglas, M
Bonde, S
Briggs, JD
Farmer, OT
Greenwood, LR
Lepel, E
Orton, C
Wacker, J
Luksic, A
AF Schwantes, Jon M.
Douglas, Matthew
Bonde, S.
Briggs, J. D.
Farmer, Orville T., III
Greenwood, Lawrence R.
Lepel, E.
Orton, C.
Wacker, J.
Luksic, A.
TI Nuclear archeology in a bottle: Evidence of pre-Trinity US weapons
activities from a waste burial site
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Douglas, Matthew; Greenwood, Lawrence R.] Pacific NW Natl Lab, Natl Secur Directorate, Richland, WA 99352 USA.
[Bonde, S.; Briggs, J. D.; Farmer, Orville T., III; Orton, C.; Wacker, J.; Luksic, A.] Pacific NW Natl Lab, Natl Secur Div, Richland, WA 99352 USA.
EM jon.schwantes@pnl.gov; matthew.douglas@pnl.gov; tom.farmer@pnl.gov;
larry.greenwood@pnl.gov
RI Greenwood, Lawrence/H-9539-2016
OI Greenwood, Lawrence/0000-0001-6563-0650
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 71-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805865
ER
PT J
AU Schwartz, V
More, K
Overbury, SH
Egbebi, A
Spivey, JJ
AF Schwartz, Viviane
More, Karren
Overbury, Steven H.
Egbebi, Adefemi
Spivey, James J.
TI In situ FT-IR studies of CO and CO2 hydrogenation over titania supported
Rh and Rh-Li catalysts
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [More, Karren] Oak Ridge Natl Lab, Microscopy Grp, Oak Ridge, TN 37831 USA.
[Overbury, Steven H.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Spivey, James J.] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA.
EM schwartzv@ornl.gov; morekl1@ornl.gov; overburysh@ornl.gov;
aegbeb1@lsu.edu; jjspivey@lsu.edu
RI More, Karren/A-8097-2016; Overbury, Steven/C-5108-2016
OI More, Karren/0000-0001-5223-9097; Overbury, Steven/0000-0002-5137-3961
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 60-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803794
ER
PT J
AU See, KA
Deutsch, TG
Kaneshiro, J
Turner, JA
Cowley, SW
AF See, Kimberly A.
Deutsch, Todd G.
Kaneshiro, Jess
Turner, John A.
Cowley, Scott W.
TI Analysis of CuGaSe2 films for photoelectrochemical water splitting
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [See, Kimberly A.] Colorado Sch Mines, Dept Chem, Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Deutsch, Todd G.; Turner, John A.] Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, Golden, CO 80401 USA.
[Kaneshiro, Jess] Univ Hawaii Manoa, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA.
[Cowley, Scott W.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
EM ksee@mines.edu; Todd_Deutsch@nrel.gov; John_Turner@nrel.gov;
scowley@mines.edu
NR 0
TC 0
Z9 0
U1 1
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 555-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857802076
ER
PT J
AU Shaughnessy, DA
AF Shaughnessy, Dawn A.
TI Collection of solid debris for the National Ignition Facility
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shaughnessy, Dawn A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM shaughnessy2@llnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 22-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805847
ER
PT J
AU Shaw, WJ
Linehan, JC
AF Shaw, Wendy J.
Linehan, John C.
TI Biologically inspired catalysts
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shaw, Wendy J.; Linehan, John C.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
EM john.linehan@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 721-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805609
ER
PT J
AU Shen, TY
Gnanakaran, S
AF Shen, Tongye
Gnanakaran, S.
TI Thermostability of hydrogen bond network of cellulose
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shen, Tongye; Gnanakaran, S.] Los Alamos Natl Labs, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA.
[Shen, Tongye] Los Alamos Natl Labs, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
EM tshen@lanl.gov; gnana@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 51-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803645
ER
PT J
AU Shen, TY
Langan, P
French, AD
Johnson, GP
Gnanakaran, S
AF Shen, Tongye
Langan, Paul
French, Alfred D.
Johnson, Glenn P.
Gnanakaran, S.
TI Self-assembly of cellulose polymers: Insights into different crystalline
forms
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shen, Tongye; Gnanakaran, S.] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA.
[Shen, Tongye] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[French, Alfred D.] USDA, So Reg Res Ctr, New Orleans, LA 70124 USA.
[Johnson, Glenn P.] ARS, Cotton Struct & Qual Res Unit, USDA, SRRC, New Orleans, LA 70124 USA.
EM tshen@lanl.gov; langan_paul@lanl.gov; al.french@ars.usda.gov;
gnana@lanl.gov
RI Langan, Paul/N-5237-2015
OI Langan, Paul/0000-0002-0247-3122
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 18-CELL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857801830
ER
PT J
AU Shin, Y
Arey, BW
Wang, CM
Exarhos, GJ
AF Shin, Yongsoon
Arey, Bruce W.
Wang, Chongmin
Exarhos, Gregory J.
TI Template synthesis of metal oxides on cellulose nanocrystal
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shin, Yongsoon] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA.
[Arey, Bruce W.] Pacific NW Natl Lab, PNNL, Richland, WA 99352 USA.
[Wang, Chongmin] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Exarhos, Gregory J.] Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA 99352 USA.
EM yongsoon.shin@pnl.gov
NR 0
TC 0
Z9 0
U1 2
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 223-CELL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857801828
ER
PT J
AU Shuford, KL
Park, SH
AF Shuford, Kevin L.
Park, Sung Ho
TI PHYS 298-Optical properties of complex nanorod architectures
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Shuford, Kevin L.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Park, Sung Ho] Sungkyunkwan Univ, Dept Chem, Suwon, South Korea.
EM shufordkl@ornl.gov; spark72@skku.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 298-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808340
ER
PT J
AU Siegfried, MJ
Hunyadi, SE
Jacobs, S
Liu, JM
Hudson, JS
Hu, TCC
Serkiz, SM
AF Siegfried, Matthew J.
Hunyadi, Simona E.
Jacobs, Stephanie
Liu, Jimei
Hudson, JoAn S.
Hu, Tom C-C
Serkiz, Steve M.
TI Cellular uptake of manganese-based nanomaterials
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Siegfried, Matthew J.; Hunyadi, Simona E.; Serkiz, Steve M.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Jacobs, Stephanie; Liu, Jimei; Hu, Tom C-C] Med Coll Georgia, Augusta, GA 30192 USA.
[Hudson, JoAn S.] Clemson Univ, Clemson, SC 29634 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 24-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803375
ER
PT J
AU Sindhikara, DJ
Roitberg, AE
Voter, AF
Kim, S
AF Sindhikara, Daniel J.
Roitberg, Adrian E.
Voter, Arthur F.
Kim, Seonah
TI Stochastic thermostat induced synchronization of MD trajectories in
biomolecules
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sindhikara, Daniel J.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA.
[Roitberg, Adrian E.; Kim, Seonah] Univ Florida, Dept Chem, Quantum Theory Project, Gainesville, FL 32611 USA.
[Voter, Arthur F.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM sindhikara@phys.ufl.edu; afv@lanl.gov; kim@qtp.ufl.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 12-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803464
ER
PT J
AU Siperko, LM
Porter, MD
Lipert, RJ
AF Siperko, Lorraine M.
Porter, Marc D.
Lipert, Robert J.
TI Colorimetric-solid phase extraction (C-SPE) for the determination of
trace level indicators of water quality
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Siperko, Lorraine M.; Porter, Marc D.] Univ Utah, Dept Chem, Salt Lake City, UT 84108 USA.
[Siperko, Lorraine M.; Porter, Marc D.] Univ Utah, Dept Chem Engn & Bioengn, Salt Lake City, UT 84108 USA.
[Lipert, Robert J.] Iowa State Univ, Inst Phys Res & Technol, Ames Lab USDOE, Ames, IA 50011 USA.
EM lorraine.siperko@utah.edu; Marc.Porter@utah.edu; blipert@ameslab.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 126-ENVR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804022
ER
PT J
AU Siperko, LM
Porter, MD
Lipert, RJ
AF Siperko, Lorraine M.
Porter, Marc D.
Lipert, Robert J.
TI Application of the principles of negligible depletion to
colorimetric-solid phase extraction
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Siperko, Lorraine M.] Univ Utah, Dept Chem, Salt Lake City, UT 84108 USA.
[Siperko, Lorraine M.; Porter, Marc D.] Univ Utah, Dept Chem Engn & Bioengn, Salt Lake City, UT 84108 USA.
[Lipert, Robert J.] Iowa State Univ, Inst Phys Res & Technol, Ames Lab USDOE, Ames, IA 50011 USA.
EM lorraine.siperko@utah.edu; Marc.Porter@utah.edu; blipert@ameslab.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 217-ENVR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804023
ER
PT J
AU Skomurski, FN
Kerisit, S
Ilton, ES
Rosso, KM
AF Skomurski, Frances N.
Kerisit, Sebastien
Ilton, Eugene S.
Rosso, Kevin M.
TI U6+ interactions with Fe2+ in magnetite
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Skomurski, Frances N.; Rosso, Kevin M.] Pacific NW Natl Lab, Geochem Div, Richland, WA 99352 USA.
[Kerisit, Sebastien; Ilton, Eugene S.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
EM frances.skomurski@pnl.gov; sebastien.kerisit@pnl.gov;
Eugene.Ilton@pnl.gov; Kevin.Rosso@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 60-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804421
ER
PT J
AU Smith, MW
Berry, DA
Shekhawat, D
Haynes, D
Spivey, JJ
AF Smith, Mark W.
Berry, David A.
Shekhawat, Dushyant
Haynes, Daniel
Spivey, James J.
TI Effect of oxide catalysts and oxygen-conducting supports on partial
oxidation of liquid hydrocarbons
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Smith, Mark W.] REM Engn Serv, Natl Energy Technol Lab, Morgantown, WV 26505 USA.
[Berry, David A.] US DOE, Separat & Fuels Proc Div, Natl Energy Technol Lab, Morgantown, WV 26505 USA.
[Shekhawat, Dushyant] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Haynes, Daniel; Spivey, James J.] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA.
EM mark.smith@re.netl.doe.gov; David.Berry@netl.doe.gov;
Dushyant.Shekhawat@netl.doe.gov; dhayne5@lsu.edu; jjspivey@lsu.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 170-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803827
ER
PT J
AU Smith, MB
Johnson, JC
Michl, J
AF Smith, Millicent B.
Johnson, Justin C.
Michl, Josef
TI PHYS 390-Noncovalent aggregates of 1,3 diphenylisobenzofuran for singlet
fission studies
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Smith, Millicent B.; Michl, Josef] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Johnson, Justin C.] Natl Renewable Energy Lab, Ctr Basic Sci, Golden, CO 80401 USA.
EM smithm@eefus.colorado.edu; michl@eefus.colorado.edu
RI Michl, Josef/G-9376-2014
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 390-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808177
ER
PT J
AU Solunke, RD
Veser, G
AF Solunke, Rahul D.
Veser, Goetz
TI Nanocomposite oxygen carriers for chemical looping combustion of
sulfur-contaminated coal gas
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 Univ Pittsburgh, Dept Chem Engn, Pittsburgh, PA 15261 USA.
US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15261 USA.
EM rds35@pitt.edu; gveser@pitt.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 7-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803710
ER
PT J
AU Somorjai, GA
AF Somorjai, G. A.
TI PHYS 82-Major successes of combined theoretical and experimental studies
in surface chemistry and heterogeneous catalysis from the perspective of
an experimental scientist
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Somorjai, G. A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Somorjai, G. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM Somorjai@berkeley.edu
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 82-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808189
ER
PT J
AU Somorjai, GA
AF Somorjai, G. A.
TI Synthesis, characterization and reaction studies on metal nanoparticles
in the 0.8-10 nm size range and controlled shape
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Somorjai, G. A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Somorjai, G. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM somorjai@berkeley.edu
NR 0
TC 0
Z9 0
U1 1
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 78-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803158
ER
PT J
AU Sorescu, DC
AF Sorescu, Dan C.
TI PHYS 41-Theoretical investigations of the adsorption and activation
properties of CO on iron and iron carbide surfaces
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sorescu, Dan C.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
EM sorescu@netl.doe.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 41-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808111
ER
PT J
AU Spagnoli, D
Gilbert, B
Waychunas, GA
Banfield, JF
AF Spagnoli, Dino
Gilbert, Benjamin
Waychunas, Glenn A.
Banfield, Jillian F.
TI Predicting the effect of ordered water on the adsorption of ions on
nanoparticle surfaces and aggregation of hematite nanoparticles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Spagnoli, Dino; Banfield, Jillian F.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA.
[Gilbert, Benjamin; Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Banfield, Jillian F.] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
EM dspagnoli@berkeley.edu; BGilbert@lbl.gov; gawaychunas@lbl.gov;
jbanfield@berkeley.edu
RI Spagnoli, Dino/F-8641-2011; Gilbert, Benjamin/E-3182-2010
OI Spagnoli, Dino/0000-0001-6367-4748;
NR 0
TC 0
Z9 0
U1 1
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 21-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804318
ER
PT J
AU Spencer, LP
Yang, P
Batista, ER
Boncella, JM
AF Spencer, Liam P.
Yang, Ping
Batista, Enrique R.
Boncella, James M.
TI Uranium(VI) bis(imido) dichalcogenate complexes: Synthesis and density
functional theory analysis
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Spencer, Liam P.; Boncella, James M.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Yang, Ping; Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM lspencer@lanl.gov; boncella@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 589-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805204
ER
PT J
AU Sproules, S
Milsmann, C
George, SD
Wieghardt, K
AF Sproules, Stephen
Milsmann, Carsten
George, Serena DeBeer
Wieghardt, Karl
TI Homoleptic and heteroleptic Fe(III) and Fe(IV) complexes stabilized by
sulfur-donor ligands
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sproules, Stephen; Milsmann, Carsten] Max Planck Soc, Max Planck Inst Bioinorgan Chem, D-45470 Mulheim, Germany.
[George, Serena DeBeer] Stanford Univ, SSRL, SLAC, Stanford, CA 94309 USA.
[Wieghardt, Karl] Max Planck Inst Bioinorgan Chem, D-45470 Mulheim, Germany.
EM sproules@mpi-muelheim.mpg.de; milsmann@mpi-muelheim.mpg.de;
serena@slac.stanford.edu; wieghardt@mpi-muelheim.mpg.de
RI DeBeer, Serena/G-6718-2012; Wieghardt, Karl/B-4179-2014
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 122-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805156
ER
PT J
AU Spycher, N
Weathers, T
Barkouki, T
Smith, RW
Ginn, TR
Zhang, GX
Fujita, Y
Wu, YX
Ajo-Franklin, J
Hubbard, S
Sengor, SS
AF Spycher, Nicolas
Weathers, Tess
Barkouki, Tammer
Smith, Robert W.
Ginn, Timothy R.
Zhang, Guoxiang
Fujita, Yoshiko
Wu, Yuxin
Ajo-Franklin, Jonathan
Hubbard, Susan
Sengor, Sema Sevinc
TI Remediation of Sr-90 by induced calcite precipitation: Reactive
transport modeling on several fronts
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Spycher, Nicolas; Zhang, Guoxiang; Wu, Yuxin; Ajo-Franklin, Jonathan; Hubbard, Susan] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Weathers, Tess; Barkouki, Tammer; Ginn, Timothy R.; Sengor, Sema Sevinc] UC Davis, Dept Civil & Environm Engn, Davis, CA USA.
[Smith, Robert W.] U Idaho, Ctr Adv Energy Studies, Idaho Falls, ID USA.
[Fujita, Yoshiko] Idaho Natl Lab, Idaho Falls, ID USA.
EM nspycher@lbl.gov
RI Ajo-Franklin, Jonathan/G-7169-2015; Fujita, Yoshiko/S-2007-2016
OI Fujita, Yoshiko/0000-0002-4472-4102
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 114-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804427
ER
PT J
AU Stechel, EB
AF Stechel, Ellen B.
TI WCC 3-Sunshine to petrol
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stechel, Ellen B.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RI Stechel, Ellen/B-1253-2012
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 3-WCC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857806658
ER
PT J
AU Stewart, CA
Dickie, DA
Parkes, MV
Kemp, RA
AF Stewart, Constantine A.
Dickie, Diane A.
Parkes, Marie V.
Kemp, Richard A.
TI Reactions of carbon dioxide, carbon disulfide and carbonyl sulfide with
tin(II) silylamides
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stewart, Constantine A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA.
[Dickie, Diane A.; Parkes, Marie V.; Kemp, Richard A.] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA.
EM castew@sandia.gov; dadickie@unm.edu; marie.v.parkes@gmail.com;
rakemp@unm.edu
RI Dickie, Diane/B-1647-2010
OI Dickie, Diane/0000-0003-0939-3309
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 559-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805510
ER
PT J
AU Stewart, CA
Dickie, DA
Kemp, RA
AF Stewart, Constantine A.
Dickie, Diane A.
Kemp, Richard A.
TI Substituted tetraazacyclotetradecane zinc(II) complexes: Synthesis,
characterization and reaction chemistry
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stewart, Constantine A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA.
[Dickie, Diane A.; Kemp, Richard A.] Univ New Mexico, Dept Chem & Chem Biol, Albuquerque, NM 87131 USA.
EM castew@sandia.gov; dadickie@unm.edu; rakemp@unm.edu
RI Dickie, Diane/B-1647-2010
OI Dickie, Diane/0000-0003-0939-3309
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 74-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805503
ER
PT J
AU Stockmaier, B
AF Stockmaier, Bruce
TI An overview of rules, regulations, consensus standards, and professional
organization activities aimed at ensuring the safety of nano R&D
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stockmaier, Bruce] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
EM bcs@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 3-CHAS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857801935
ER
PT J
AU Stowe, AC
Berseth, P
Harter, A
Zidan, R
Blomqvist, A
Araujo, CM
Ahuja, R
Jena, P
AF Stowe, Ashley C.
Berseth, Polly
Harter, Andrew
Zidan, Ragaiy
Blomqvist, Andreas
Araujo, C. Moyses
Ahuja, Rajeev
Jena, Puru
TI Catalytic role of nanostructured carbon on NaAlH4 hydrogen sorption
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stowe, Ashley C.] Appl Technol, Oak Ridge, TN 37831 USA.
[Berseth, Polly; Harter, Andrew; Zidan, Ragaiy] Savannah River Natl Lab, Aiken, SC USA.
[Jena, Puru] Virginia Commonwealth Univ, Richmond, VA 23284 USA.
[Blomqvist, Andreas; Araujo, C. Moyses; Ahuja, Rajeev] Uppsala Univ, Uppsala, Sweden.
EM stoweac@y12.doe.gov
RI Araujo, Moyses/L-6135-2013
OI Araujo, Moyses/0000-0001-5192-0016
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 84-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803790
ER
PT J
AU Stoyer, MA
AF Stoyer, Mark A.
TI Development of radiochemistry experiments at the National Ignition
Facility
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Stoyer, Mark A.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 21-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805842
ER
PT J
AU Strzelec, A
Daw, CS
Toops, TJ
Foster, DE
Rutland, C
AF Strzelec, Andrea
Daw, C. Stuart
Toops, Todd J.
Foster, David E.
Rutland, Chris
TI Impact of biofuel blending on diesel soot oxidation characteristics:
Implications for aftertreatment catalysts
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Toops, Todd J.] Oak Ridge Natl Lab, Natl Transportat Res Ctr, Knoxville, TN 37932 USA.
[Foster, David E.; Rutland, Chris] Univ Wisconsin, Engine Res Ctr, Madison, WI 53706 USA.
EM strzelecan@ornl.gov; dawcs@ornl.gov; toopstj@ornl.gov;
rutland@engr.wisc.edu
RI Rutland, Christopher/F-8261-2011
NR 0
TC 0
Z9 0
U1 1
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 123-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803712
ER
PT J
AU Sumpter, BG
Meunier, V
AF Sumpter, Bobby G.
Meunier, Vincent
TI PHYS 118-An electronic structure study on the manipulation and control
of the structure, morphology and properties of carbon nanotubes and
heterostructures
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sumpter, Bobby G.; Meunier, Vincent] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA.
[Sumpter, Bobby G.; Meunier, Vincent] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
EM sumpterbg@ornl.gov; meunierv@ornl.gov
RI Sumpter, Bobby/C-9459-2013
OI Sumpter, Bobby/0000-0001-6341-0355
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 118-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808088
ER
PT J
AU Sun, XQ
Cao, Y
Niwayama, S
Hase, WL
Dang, LX
AF Sun, Xiuquan
Cao, Yang
Niwayama, Satomi
Hase, William L.
Dang, Liem X.
TI PHYS 403-Effects of sodium hydroxide on the solvation of
dimethyl-succinate in water: A computational study
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Dang, Liem X.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Cao, Yang; Niwayama, Satomi; Hase, William L.] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA.
EM Xiuquan.Sun@pnl.gov; Yang.Cao@ttu.edu; satomi.niwayama@ttu.edu;
liem.dang@pnl.gov
RI Niwayama, Satomi/O-1598-2015
OI Niwayama, Satomi/0000-0001-6385-5274
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 403-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808153
ER
PT J
AU Sun, YG
AF Sun, Yugang
TI Direct growth of anisotropic metal nanostructures on semiconductor
substrates
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sun, Yugang] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
EM ygsun@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 652-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805020
ER
PT J
AU Sutton, AD
Gordon, JC
Clark, DL
Scott, BL
AF Sutton, Andrew D.
Gordon, John C.
Clark, David L.
Scott, Brian L.
TI Covalency within 4f-element complexes
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Sutton, Andrew D.; Gordon, John C.; Clark, David L.; Scott, Brian L.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
EM adsutton@lanl.gov; jgordon@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 371-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805671
ER
PT J
AU Swancutt, KL
Mezyk, SP
Martin, LR
Paine, RT
Binyamin, I
Pailloux, S
AF Swancutt, Katy L.
Mezyk, Stephen P.
Martin, Leigh R.
Paine, Robert T.
Binyamin, Iris
Pailloux, Sylvie
TI Radiolytic degradation of lanthanide/actinide separation ligands
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Swancutt, Katy L.; Mezyk, Stephen P.] Calif State Univ Long Beach, Dept Chem & Biochem, Long Beach, CA 90840 USA.
[Martin, Leigh R.] Idaho Natl Lab, Aqueous Separat & Radiochem Dept, Idaho Falls, ID 83415 USA.
[Paine, Robert T.; Binyamin, Iris; Pailloux, Sylvie] Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA.
EM k_swancutt@yahoo.com; smezyk@csulb.edu; Leigh.Martin@inl.gov;
rtpaine@unm.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 428-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805665
ER
PT J
AU Taube, AG
AF Taube, Andrew G.
TI PHYS 5-Developments in coupled-cluster molecular dynamics
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Taube, Andrew G.] Sandia Natl Labs, Multiscale Dynam Mat Modeling, Albuquerque, NM 87185 USA.
EM agtaube@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 5-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808107
ER
PT J
AU Tretiak, S
AF Tretiak, Sergei
TI PHYS 204-Functionalized quantum dots and conjugated polymers for light
harvesting applications: Theoretical insights
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM serg@lanl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 204-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808245
ER
PT J
AU Tretiak, S
Wu, C
Malinin, SV
Chernyak, V
AF Tretiak, Sergei
Wu, Chao
Malinin, Sergey V.
Chernyak, Vladimir
TI Multiscale modeling of electronic excitations at the nanoscale
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Wu, Chao; Malinin, Sergey V.; Chernyak, Vladimir] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA.
EM serg@lanl.gov; malinin@chem.wayne.edu; chernyak@chem.wayne.edu
RI Chernyak, Vladimir/F-5842-2016
OI Chernyak, Vladimir/0000-0003-4389-4238
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 30-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803557
ER
PT J
AU Tsung, CK
Kuhn, JN
Huang, WY
Yang, PD
Somorjai, GA
AF Tsung, Chia-Kuang
Kuhn, John N.
Huang, Wenyu
Yang, Peidong
Somorjai, Gabor A.
TI Pyrrole hydrogenation over size and shape controlled platinum
nanocrystals
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Tsung, Chia-Kuang; Kuhn, John N.; Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94709 USA.
[Huang, Wenyu] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM franktsung@gmail.com; kuhnj@berkeley.edu; whuang2@lbl.gov;
p_yang@berkeley.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 718-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805742
ER
PT J
AU Tuncer, E
Sauers, I
James, DR
Ellis, AR
More, KL
AF Tuncer, Enis
Sauers, Isidor
James, D. Randy
Ellis, Alvin R.
More, Karren L.
TI Dielectric breakdown in nanodielectrics
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Tuncer, Enis; Sauers, Isidor; James, D. Randy; Ellis, Alvin R.; More, Karren L.] Oak Ridge Natl Lab, Div Fus Energy, Appl Superconduct Grp, Oak Ridge, TN 37831 USA.
EM tuncere@ornl.gov
RI More, Karren/A-8097-2016
OI More, Karren/0000-0001-5223-9097
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 72-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807025
ER
PT J
AU Turner, JA
Deutsch, TG
Huda, M
AF Turner, John A.
Deutsch, Todd G.
Huda, Muhammad
TI Properties and theoretical aspects for photoelectrochemical water
splitting materials
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Turner, John A.; Deutsch, Todd G.; Huda, Muhammad] Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, Golden, CO 80401 USA.
EM John_Turner@nrel.gov; Todd_Deutsch@nrel.gov
NR 0
TC 0
Z9 0
U1 2
U2 6
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 129-IEC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857802797
ER
PT J
AU Ulrich, KU
Veeramani, H
Sharp, JO
Bernier-Latmani, R
Schofield, E
Bargar, JR
Giammar, DE
AF Ulrich, Kai-Uwe
Veeramani, Harish
Sharp, Jonathan O.
Bernier-Latmani, Rizlan
Schofield, Eleanor
Bargar, John R.
Giammar, Daniel E.
TI Speciation and reactivity of biogenic UO2 in water
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Ulrich, Kai-Uwe; Giammar, Daniel E.] Washington Univ, St Louis, MO 63130 USA.
[Veeramani, Harish; Sharp, Jonathan O.; Bernier-Latmani, Rizlan] Ecole Polytech Fed Lausanne, Environm Microbiol Lab, CH-1015 Lausanne, Switzerland.
[Schofield, Eleanor] Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA.
[Bargar, John R.] Stanford Synchrotron Radiat Lightsource, Stanford, CA 94305 USA.
EM k.ulrich@seas.wustl.edu; rizlan.bernier-latmani@epfl.ch;
eleanors@slac.stanford.edu; bargar@slac.stanford.edu; giammar@wustl.edu
RI Bernier-Latmani, Rizlan/E-4398-2011
OI Bernier-Latmani, Rizlan/0000-0001-6547-722X
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 93-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804272
ER
PT J
AU Valone, SM
Levy, M
AF Valone, Steven M.
Levy, Mel
TI PHYS 209-Stretched hydrogen molecule from a constrained-search density
functional perspective
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Valone, Steven M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Levy, Mel] Duke Univ, Dept Chem, Durham, NC 27708 USA.
EM smv@lanl.gov; mlevy@tulane.edu
NR 2
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 209-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808145
ER
PT J
AU Varma, S
Rempe, SB
AF Varma, Sameer
Rempe, Susan B.
TI PHYS 67-Ab initio studies of ion-ligand interactions: Evidence for
polarizability
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Varma, Sameer; Rempe, Susan B.] Sandia Natl Labs, Mol & Computat Biosci Grp, Albuquerque, NM 87185 USA.
EM svarma@sandia.gov; slrempe@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 67-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808438
ER
PT J
AU Vasiliou, A
Nimlos, M
Ellison, GB
AF Vasiliou, AnGayle
Nimlos, Mark
Ellison, G. Barney
TI Mechanism of the thermal decomposition of furan
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Vasiliou, AnGayle; Ellison, G. Barney] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Ellison, G. Barney] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Nimlos, Mark] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
EM angayle.vasiliou@colorado.edu; mark_nimlos@nrel.gov;
barney@jila.colorado.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 176-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803760
ER
PT J
AU Vazquez-Mayagoitia, A
Fuentes-Cabrera, M
Sumpter, BG
Huertas, O
Luque, SFJ
Orozco, M
Di Felice, R
AF Vazquez-Mayagoitia, Alvaro
Fuentes-Cabrera, Miguel
Sumpter, Bobby G.
Huertas, Oscar
Javier Luque, Spain F.
Orozco, Modesto
Di Felice, Rosa
TI PHYS 276-Ab inito investigation of naphto and benzo homologated DNA
bases and the effects of substituents.
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Vazquez-Mayagoitia, Alvaro] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Fuentes-Cabrera, Miguel; Sumpter, Bobby G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Fuentes-Cabrera, Miguel; Sumpter, Bobby G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Huertas, Oscar] Univ Barcelona, Fac Farm, Dept Quim Fis, E-08028 Barcelona, Spain.
[Javier Luque, Spain F.] Univ Barcelona, Dept Farm, E-08028 Barcelona, Spain.
[Orozco, Modesto] Inst Recerca Biomed, Unitat Modelitzacio Mol & Bioinformat, Barcelona 08024, Spain.
[Di Felice, Rosa] Univ Modena & Reggio Emilia, Ist Nazl Fis Mat, I-41100 Modena, Italy.
EM avazquel@utk.edu; sumpterbg@ornl.gov; oscar@mmb.pcb.ub.es;
fjluque@ub.edu; modesto@mmb.pcb.ub.es; rosa@unimore.it
RI Sumpter, Bobby/C-9459-2013; Vazquez-Mayagoitia, Alvaro/A-9755-2010;
Fuentes-Cabrera, Miguel/Q-2437-2015
OI Sumpter, Bobby/0000-0001-6341-0355; Fuentes-Cabrera,
Miguel/0000-0001-7912-7079
NR 0
TC 0
Z9 0
U1 0
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 276-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808373
ER
PT J
AU Vazquez-Mayagoitia, A
Fuentes-Cabrera, M
Sumpter, BG
Sponer, JE
AF Vazquez-Mayagoitia, Alvaro
Fuentes-Cabrera, Miguel
Sumpter, Bobby G.
Sponer, Judit E.
TI PHYS 249-Ab initio study of alternative genetic systems
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Vazquez-Mayagoitia, Alvaro] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Fuentes-Cabrera, Miguel; Sumpter, Bobby G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Fuentes-Cabrera, Miguel; Sumpter, Bobby G.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Sponer, Judit E.] Acad Sci Czech Republic, Inst Biophys, CS-61265 Brno, Czech Republic.
EM avazquel@utk.edu; sumpterbg@ornl.gov; judit@ncbr.chemi.muni.cz
RI Sponer, Judit/D-9918-2012; Sumpter, Bobby/C-9459-2013;
Vazquez-Mayagoitia, Alvaro/A-9755-2010; Fuentes-Cabrera,
Miguel/Q-2437-2015
OI Sumpter, Bobby/0000-0001-6341-0355; Fuentes-Cabrera,
Miguel/0000-0001-7912-7079
NR 5
TC 0
Z9 0
U1 0
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 249-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808367
ER
PT J
AU Veith, GM
Lupini, AR
Dudney, NJ
AF Veith, Gabriel M.
Lupini, Andrew R.
Dudney, Nancy J.
TI Essential role of surface hydroxyls for the stabilization and catalytic
activity of TiO2-supported gold nanoparticles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Veith, Gabriel M.; Lupini, Andrew R.; Dudney, Nancy J.] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA.
EM veithgm@ornl.gov
RI Dudney, Nancy/I-6361-2016
OI Dudney, Nancy/0000-0001-7729-6178
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 160-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803808
ER
PT J
AU Vela, J
Chen, YF
Htoon, H
Bussian, DA
Casson, JL
Werder, DJ
Klimov, VI
Hollingsworth, JA
AF Vela, Javier
Chen, Yongfen
Htoon, Han
Bussian, David A.
Casson, Joanna L.
Werder, Donald J.
Klimov, Victor I.
Hollingsworth, Jennifer A.
TI Giant multishell II-VI quantum dots: Tunable-color, nonblinking and
robust quantum dot fluorophores for applications in biology
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Vela, Javier; Chen, Yongfen; Htoon, Han; Bussian, David A.; Casson, Joanna L.; Werder, Donald J.; Klimov, Victor I.; Hollingsworth, Jennifer A.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
EM jvelab@lanl.gov; yongfen@lanl.gov; htoon@lanl.gov; klimov@lanl.gov;
jenn@lanl.gov
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 368-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805302
ER
PT J
AU Verduzco, R
Chambers, M
Jakli, A
Sprunt, SN
Gleeson, JT
AF Verduzco, Rafael
Chambers, Martin
Jakli, Antal
Sprunt, S. N.
Gleeson, James T.
TI Flexoelectric networks from bent-core nematic liquid crystal polymers
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Verduzco, Rafael] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Chambers, Martin; Sprunt, S. N.; Gleeson, James T.] Kent State Univ, Dept Phys, Kent, OH 44240 USA.
[Jakli, Antal] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA.
EM verduzcor@ornl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 402-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807162
ER
PT J
AU Vieira, DJ
Jandel, M
Bredeweg, TA
Bond, EM
Moody, KJ
Stoyer, MA
Wilk, PA
Wu, CY
AF Vieira, D. J.
Jandel, M.
Bredeweg, T. A.
Bond, E. M.
Moody, K. J.
Stoyer, Mark A.
Wilk, P. A.
Wu, C. Y.
TI Neutron capture and neutron-induced fission measurements on
241,242m,243Am at DANCE
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Vieira, D. J.; Jandel, M.; Bredeweg, T. A.; Bond, E. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Moody, K. J.; Stoyer, Mark A.; Wilk, P. A.; Wu, C. Y.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM vieira@lanl.gov; moody3@llnl.gov; stoyer1@llnl.gov
NR 1
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 28-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805855
ER
PT J
AU Virkar, AA
Mannsfeld, SCB
Toney, MF
Bao, ZN
AF Virkar, Ajay A.
Mannsfeld, Stefan C. B.
Toney, Michael F.
Bao, Zhenan
TI Controlled organic semiconductor growth via dieletric crystalline
surface modification for high performance OTFTs
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Virkar, Ajay A.; Mannsfeld, Stefan C. B.; Bao, Zhenan] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA.
[Toney, Michael F.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA USA.
EM avirkar@stanford.edu; zbao@stanford.edu
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 158-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807072
ER
PT J
AU Wada, M
Nishiyama, Y
Heux, L
Chanzy, H
Langan, P
AF Wada, Masahisa
Nishiyama, Yoshiharu
Heux, Laurent
Chanzy, Henri
Langan, Paul
TI Structural pathways in the treatment of cellulose with amines
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wada, Masahisa] Univ Tokyo, Dept Biomat Sci, Bukyo Ku, Tokyo 1138657, Japan.
[Nishiyama, Yoshiharu; Chanzy, Henri] CNRS, Ctr Rech Macromol Vegetales CERMAV, F-38041 Grenoble 9, France.
[Heux, Laurent] Ctr Rech Macromol Vegetales CERMAV CNRS, F-38041 Grenoble, France.
[Langan, Paul] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM awadam@mail.ecc.u-tokyo.ac.jp; Yoshiharu.Nishiyama@cermav.cnrs.fr;
Laurent.Heux@cermav.cnrs.fr; langan_paul@lanl.gov
RI Langan, Paul/N-5237-2015
OI Langan, Paul/0000-0002-0247-3122
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 15-CELL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857801776
ER
PT J
AU Walker, RC
Stern, JV
McGrath, WJ
Mange, W
AF Walker, Ross C.
Stern, Julie V.
McGrath, William J.
Mange, Walter
TI Insights into the activation pathway of the adenovirus protease enzyme:
Large scale nudged elastic band simulations on NSF supercomputers
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Walker, Ross C.] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA.
[Stern, Julie V.; McGrath, William J.; Mange, Walter] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
EM rcw@sdsc.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 5-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803504
ER
PT J
AU Walukiewicz, W
AF Walukiewicz, Wladek
TI PHYS 484-New semiconductor materials for high efficiency solar cells
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Walukiewicz, Wladek] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM w_walukiewicz@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 484-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808329
ER
PT J
AU Wander, MCF
Kerisit, S
Rosso, KM
AF Wander, Matthew C. F.
Kerisit, Sebastien
Rosso, Kevin M.
TI Ferrous iron reduction of uranium(VI) in moderately acidic water
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wander, Matthew C. F.] Washington State Univ, Dept Chem, Pullman, WA 99164 USA.
[Kerisit, Sebastien; Rosso, Kevin M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
EM mwander@wsu.edu; sebastien.kerisit@pnl.gov; kevin.rosso@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 62-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804255
ER
PT J
AU Wang, XQ
Dai, S
AF Wang, Xiqing
Dai, Sheng
TI Soft-template synthesis of mesoporous carbons under acidic conditions
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wang, Xiqing; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM xzw@ornl.gov; dais@ornl.gov
RI Dai, Sheng/K-8411-2015
OI Dai, Sheng/0000-0002-8046-3931
NR 0
TC 0
Z9 0
U1 0
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 370-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803205
ER
PT J
AU Wang, Y
Stocks, GM
Rusanu, A
Nicholson, DMC
Eisenbach, M
AF Wang, Yang
Stocks, G. Malcolm
Rusanu, Aurelian
Nicholson, Don M. C.
Eisenbach, Markus
TI Toward petaflop computing for electronic structure calculations
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wang, Yang] Carnegie Mellon Univ, Pittsburgh Supercomp Ctr, Pittsburgh, PA 15213 USA.
[Stocks, G. Malcolm; Rusanu, Aurelian] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Nicholson, Don M. C.] Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA.
[Eisenbach, Markus] Oak Ridge Natl Lab, Ctr Computat Sci, Oak Ridge, TN 37831 USA.
EM ywg@psc.edu; stocksgm@ornl.gov; rusanua@ornl.gov; nicholsondm@ornl.gov;
eisenbachm@ornl.gov
RI Rusanu, Aurelian/A-8858-2013; Stocks, George Malcollm/Q-1251-2016
OI Stocks, George Malcollm/0000-0002-9013-260X
NR 0
TC 0
Z9 0
U1 0
U2 6
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 64-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803644
ER
PT J
AU Wang, YF
Gao, HZ
Brinker, CJ
AF Wang, Yifeng
Gao, Huizhen
Brinker, C. Jeffrey
TI Development of new generation nuclear waste form: Nano-immobilization
and nanoencapsulation
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wang, Yifeng] Sandia Natl Labs, Dept Lower Barrier Syst, Albuquerque, NM 87123 USA.
[Gao, Huizhen] Sandia Natl Labs, Dept Radiol Consequence Management & Response Tec, Albuquerque, NM 87123 USA.
[Brinker, C. Jeffrey] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA.
EM ywang@sandia.gov; hgao@sandia.gov; cjbrink@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 369-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803100
ER
PT J
AU Wang, YG
Gelabert, A
Choi, Y
Ha, J
Gescher, J
Bargar, JR
Rogers, J
Eng, P
Cordova, CD
Spormann, AM
Brown, GE
AF Wang, Yingge
Gelabert, Alexandre
Choi, Yongseong
Ha, Juyoung
Gescher, Johannes
Bargar, John R.
Rogers, Joe
Eng, Peter
Cordova, Carmen D.
Spormann, Alfred M.
Brown, Gordon E., Jr.
TI Impact of Shewanella oneidensis MR-1 biofilm coatings on the reactivity
of hematite
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wang, Yingge; Ha, Juyoung] Stanford Univ, Dept Geol & Environm Sci, Surface & Aqueous Geochem Grp, Stanford, CA 94305 USA.
[Gelabert, Alexandre] Univ Paris 07, Dept Earth Sci, Paris, France.
[Choi, Yongseong; Eng, Peter] Univ Chicago, GSECARS, Adv Photon Source, Argonne, IL 60439 USA.
[Gescher, Johannes; Cordova, Carmen D.; Spormann, Alfred M.] Stanford Univ, Clark Ctr Biox, Dept Civil & Environm Engn, Stanford, CA 94305 USA.
[Bargar, John R.; Rogers, Joe] Stanford Synchrotron Radiat Lightsource, Stanford, CA 94305 USA.
EM bargar@slac.stanford.edu; gordon.brown@stanford.edu
RI gelabert, alexandre/A-5684-2011; Gescher, Johannes/I-1672-2013
OI Gescher, Johannes/0000-0002-1625-8810
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 157-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804386
ER
PT J
AU Wang, ZM
Boily, JF
Zachara, JM
Xia, YX
Moore, DA
Liu, CX
AF Wang, Zheming
Boily, Jean-Francois
Zachara, John M.
Xia, Y. X.
Moore, Dean A.
Liu, Chongxuan
TI A fluorescence spectroscopic study of U(VI) in Hanford 300 area
groundwater fines
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wang, Zheming; Moore, Dean A.] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA.
[Liu, Chongxuan] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
EM zheming.wang@pnl.gov; boily@pnl.gov; john.zachara@pnl.gov;
chongxuan.liu@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 82-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804279
ER
PT J
AU Warner, MG
Warner, CL
Addleman, RS
Droubay, TC
Engelhard, M
Davidson, JD
Cinson, AD
Nash, MA
Yantasee, W
AF Warner, Marvin G.
Warner, Cynthia L.
Addleman, R. Shane
Droubay, Tim C.
Engelhard, Mark
Davidson, Joseph D.
Cinson, Anthony D.
Nash, Michael A.
Yantasee, Wassana
TI Synthesis of functionalized superparamagnetic iron oxide nanoparticles
from a common precursor and their application as heavy metal and
actinide sorbents
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Warner, Marvin G.; Droubay, Tim C.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Warner, Cynthia L.; Cinson, Anthony D.] Pacific NW Natl Lab, Natl Secur Directorate, Richland, WA 99352 USA.
[Addleman, R. Shane; Davidson, Joseph D.; Yantasee, Wassana] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA.
[Engelhard, Mark] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Nash, Michael A.] Univ Washington, Dept Bioengn, Seattle, WA 98195 USA.
EM marvin.warner@pnl.gov; cynthia.warner@pnl.gov; shane.addleman@pnl.gov;
Tim.Droubay@pnl.gov; mark.engelhard@pnl.gov; joseph.davidson@pnl.gov;
anthony.cinson@pnl.gov; Wassana.Yantasee@pnl.gov
RI Engelhard, Mark/F-1317-2010
NR 0
TC 0
Z9 0
U1 2
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 465-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803059
ER
PT J
AU Warzinski, RP
Zhang, W
AF Warzinski, Robert P.
Zhang, Wu
TI Hydrate formation from single-phase aqueous solutions of CO2 in the
presence of bentonite particles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Warzinski, Robert P.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Zhang, Wu] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA.
EM warzinsk@netl.doe.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 66-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803771
ER
PT J
AU Waychunas, GA
Jun, YS
Davis, JA
Kubicki, JD
AF Waychunas, Glenn A.
Jun, Young-Shin
Davis, James A.
Kubicki, James D.
TI The crystal chemistry of iron oxyhydroxide-silica interfacial reactions
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Jun, Young-Shin] Washington Univ, St Louis, MO 63130 USA.
[Davis, James A.] US Geol Survey, Menlo Pk, CA 94025 USA.
[Kubicki, James D.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
EM gawaychunas@lbl.gov; ysjun@seas.wustl.edu; jadavis@usgs.gov;
kubicki@geosc.psu.edu
RI Kubicki, James/I-1843-2012; Davis, James/G-2788-2015
OI Kubicki, James/0000-0002-9277-9044;
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 103-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804350
ER
PT J
AU Waychunas, GA
AF Waychunas, Glenn A.
TI Sulfate sorption and incorporation into iron oxyhydroxide minerals
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM gawaychunas@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 33-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804349
ER
PT J
AU Westbrook, CK
Pitz, WJ
Carstensen, HH
Dean, AM
AF Westbrook, Charles K.
Pitz, William J.
Carstensen, Hans-Heinrich
Dean, Anthony M.
TI Development of detailed kinetic models for Fischer-Tropsch fuels
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Westbrook, Charles K.; Pitz, William J.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
[Carstensen, Hans-Heinrich; Dean, Anthony M.] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA.
EM westbrookl@llnl.gov; pitzl@llnl.gov; hcarsten@mines.edu;
amdean@mines.edu
NR 0
TC 0
Z9 0
U1 0
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 21-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803805
ER
PT J
AU Westover, RD
Pak, JJ
Rodriguez, RG
Fox, RV
Long, GL
Bajracharya, C
AF Westover, Richard D.
Pak, Joshua J.
Rodriguez, Rene G.
Fox, Robert V.
Long, Gary L.
Bajracharya, Cyril
TI Greener approaches for the preparation of I-III-IV nanoparticles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Westover, Richard D.; Pak, Joshua J.; Rodriguez, Rene G.; Long, Gary L.; Bajracharya, Cyril] Idaho State Univ, Dept Chem, Pocatello, ID 83209 USA.
[Fox, Robert V.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM richardwestover@hotmial.com; pakjosh@isu.edu; bajacyri@isu.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 483-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805116
ER
PT J
AU Winans, RE
Lee, B
Seifert, S
Lee, S
Elam, JW
Vajda, S
AF Winans, Randall E.
Lee, Byeongdu
Seifert, S.
Lee, Sungsik
Elam, Jeffrey W.
Vajda, Stefan
TI Grazing incidence small-angle X-ray scattering studies of nanometal
catalysts
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Winans, Randall E.; Lee, Byeongdu; Seifert, S.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
[Lee, Sungsik; Vajda, Stefan] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Vajda, Stefan] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
EM rewinans@anl.gov; sungsiklee@anl.gov; vajda@anl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 53-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803786
ER
PT J
AU Wong, SS
AF Wong, Stanislaus S.
TI Green synthesis and applications of functional metal oxide
nanostructures
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
[Wong, Stanislaus S.] Brookhaven Natl Lab, Dept Mat Sci, Stony Brook, NY 11794 USA.
EM sswong@notes.cc.sunysb.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 22-IEC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857802742
ER
PT J
AU Wright, KE
Fujita, Y
Janney, DE
AF Wright, Karen E.
Fujita, Yoshiko
Janney, Dawn E.
TI Induced precipitation of apatite as a strategy to reduce Sr-90 mobility
in the subsurface
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wright, Karen E.; Fujita, Yoshiko; Janney, Dawn E.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM karen.wright@inl.gov; dawn.janney@inl.gov
RI Fujita, Yoshiko/S-2007-2016
OI Fujita, Yoshiko/0000-0002-4472-4102
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 6-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804390
ER
PT J
AU Wu, CY
AF Wu, Ching-Yen
TI Nuclear structure of 242Am and (n,gamma) reaction on 242mAm
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Wu, Ching-Yen] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM wu24@llnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 29-NUCL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805838
ER
PT J
AU Xantheas, SS
Fanourgakis, GS
AF Xantheas, Sotiris S.
Fanourgakis, George S.
TI PHYS 446-An ab initio based transferable interaction potential for water
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Xantheas, Sotiris S.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Fanourgakis, George S.] Fdn Res & Technol Hellas, Inst Elect Struct & Laser, GR-71110 Iraklion, Greece.
EM sotiris.xantheas@pnl.gov; fanourg@iesl.forth.gr
RI Xantheas, Sotiris/L-1239-2015
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 446-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808348
ER
PT J
AU Xiong, YL
Nemer, MB
Ismail, AE
Brush, LH
AF Xiong, Yongliang
Nemer, Martin B.
Ismail, Ahmed E.
Brush, Laurence H.
TI Anoxic production of sulfate green rust II by the reduction of water and
partial oxidation of Fe-2 (OH)(3)Cl center dot x H2O(s)
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Xiong, Yongliang; Brush, Laurence H.] Sandia Natl Labs, Repository Performance Dept, Carlsbad Programs Grp, Carlsbad, NM 88220 USA.
[Nemer, Martin B.; Ismail, Ahmed E.] Sandia Natl Labs, Performance Assessment & Decis Anal Dept, Carlsbad Programs Grp, Carlsbad, NM 88220 USA.
EM lhbrush@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 175-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804307
ER
PT J
AU Xu, Y
Gordon, WO
Senanayake, SD
Mullins, DR
Overbury, SH
AF Xu, Ye
Gordon, Wesley O.
Senanayake, Sanjaya D.
Mullins, David R.
Overbury, Steven H.
TI PHYS 12-Pathways and intermediates of formic acid decomposition on the
CeO2(111) surface
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Xu, Ye] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Gordon, Wesley O.; Senanayake, Sanjaya D.; Mullins, David R.; Overbury, Steven H.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM xuy2@ornl.gov; gordonwo@ornl.gov; mullinsdr@ornl.gov;
overburysh@ornl.gov
RI Overbury, Steven/C-5108-2016
OI Overbury, Steven/0000-0002-5137-3961
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 12-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808300
ER
PT J
AU Yang, PD
AF Yang, Peidong
TI PHYS 200-Semiconductor nanowires for solar energy harvesting
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Yang, Peidong] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM p_yang@uclink.berkeley.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 200-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808442
ER
PT J
AU Yanina, SV
Boily, JF
Gorski, CA
Larese-Casanova, P
Catalano, JG
Fenter, P
Scherer, MM
Rosso, KM
AF Yanina, Svetlana V.
Boily, Jean-Francois
Gorski, Christopher A.
Larese-Casanova, Philip
Catalano, Jeffrey G.
Fenter, Paul
Scherer, Michelle M.
Rosso, Kevin M.
TI Multiscale investigations of Fe(II) interaction with hematite (001)
surfaces
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Yanina, Svetlana V.; Boily, Jean-Francois; Rosso, Kevin M.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
[Gorski, Christopher A.; Scherer, Michelle M.] Univ Iowa, Seamans Ctr 4015, Iowa City, IA 52242 USA.
[Larese-Casanova, Philip] Univ Tubingen, Ctr Appl Geosci ZAG, D-72074 Tubingen, Germany.
[Catalano, Jeffrey G.] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA.
[Fenter, Paul] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
EM boily@pnl.gov; cgorski@engineering.uiowa.edu;
philip.larese-casanova@uni-tuebingen.de; catalano@wustl.edu;
fenter@anl.gov; schererm@engineering.uiowa.edu; kevin.rosso@pnl.gov
RI Catalano, Jeffrey/A-8322-2013
OI Catalano, Jeffrey/0000-0001-9311-977X
NR 0
TC 0
Z9 0
U1 1
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 151-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804407
ER
PT J
AU Yoo, S
Xantheas, SS
AF Yoo, Soohaeng
Xantheas, Sotiris S.
TI PHYS 271-Water-mediated midrange attractive interaction of antiparallel
-sheets
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Yoo, Soohaeng; Xantheas, Sotiris S.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
EM syoo70@gmail.com; sotiris.xantheas@pnl.gov
RI Xantheas, Sotiris/L-1239-2015
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 271-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808027
ER
PT J
AU Yu, JF
Zhao, DC
Liu, L
Liu, XL
Liu, C
Chen, QR
Liu, FQ
AF Yu, Jingfeng
Zhao, Dacheng
Liu, Li
Liu, Xiaoli
Liu, Chang
Chen, Qingrui
Liu, Fengqi
TI Study of gel fractions in the gelation of poly(acrylamide) and
poly(acrylamide-co-N,N-dimethylacrylamide)
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Yu, Jingfeng; Liu, Li; Liu, Xiaoli; Liu, Chang; Chen, Qingrui; Liu, Fengqi] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China.
[Zhao, Dacheng] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM jingfy2006@126.com; dzhao@lbl.gov; jingfy2006@126.com;
liuxiaoli9123@sohu.com; liuchangbeckham@yahoo.com.cn;
chenqr492@yahoo.com.cn; liufengqi@jlu.edu.cn
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 400-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807041
ER
PT J
AU Zachara, JM
Heald, SM
McKinley, JP
Fredrickson, J
Peretyazhko, T
Plymale, A
AF Zachara, John M.
Heald, Steve M.
McKinley, James P.
Fredrickson, James
Peretyazhko, Tanya
Plymale, Andrew
TI Heterogeneous redox potential of different solid-phase Fe(II) forms
defined by reaction with the pertechnetate anion
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [McKinley, James P.] Pacific NW Natl Lab, Environm Dynam & Simulat Grp, Richland, WA 99352 USA.
[Heald, Steve M.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Fredrickson, James] Pacific NW Natl Lab, Dept Microbiol, Richland, WA 99352 USA.
[Peretyazhko, Tanya] Pacific NW Natl Lab, Environm Dynam & Simulat Grp, Richland, WA 99354 USA.
EM john.zachara@pnl.gov; heald@aps.anl.gov; james.mckinley@pnl.gov;
jim.fredrickson@pnl.gov; tetyana.peretyazhko@pnl.gov; plymale@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 91-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804304
ER
PT J
AU Zahariev, F
Gordon, MS
AF Zahariev, Federico
Gordon, Mark S.
TI PHYS 263-Linear and nonlinear response TDDFT/EFP
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zahariev, Federico; Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM federico@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 263-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808395
ER
PT J
AU Zaikowski, L
Gelfond, C
Selvaggio, ED
Asaoka, S
Takeda, N
Yang, A
Miller, J
AF Zaikowski, Lori
Gelfond, Claudia
Selvaggio, Elicia D.
Asaoka, Sadayuki
Takeda, Norihiko
Yang, Alex
Miller, John
TI PHYS 357-Reduction of poly-2,7-(9,9-dihexylfluorene) molecular wires to
form polyanions
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zaikowski, Lori; Selvaggio, Elicia D.] Dowling Coll, Dept Chem & Phys, Oakdale, NY 11769 USA.
[Gelfond, Claudia] Dalton High Sch, New York, NY USA.
[Asaoka, Sadayuki; Takeda, Norihiko; Miller, John] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Yang, Alex] Brentwood High Sch, Brentwood, Essex, England.
EM zaikowsL@dowling.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 375-PHYS
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857808047
ER
PT J
AU Zajickova, Z
Rubi, E
Narciso, V
Svec, F
AF Zajickova, Zuzana
Rubi, Emir
Narciso, Vanessa
Svec, Frantisek
TI In situ synthesis of monolithic alumina columns for applications in
microscale liquid chromatography
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zajickova, Zuzana; Rubi, Emir; Narciso, Vanessa] Barry Univ, Dept Phys Sci, Miami Shores, FL 33161 USA.
[Svec, Frantisek] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM zzajickova@mail.barry.edu; RubiE@bucmail.barry.edu;
NarcisoV@bucmail.barry.edu; fsvec@lbl.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 234-CHED
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857801464
ER
PT J
AU Zarzycki, P
Kerisit, S
Skomurski, FN
Rosso, KM
AF Zarzycki, Piotr
Kerisit, Sebastien
Skomurski, Frances N.
Rosso, Kevin M.
TI Theoretical description of electron exchange dynamics at Fe(II)/goethite
interfaces
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zarzycki, Piotr] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Kerisit, Sebastien; Rosso, Kevin M.] Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99352 USA.
[Skomurski, Frances N.] Pacific NW Natl Lab, Geochem Div, Richland, WA 99352 USA.
EM piotr.zarzycki@pnl.gov; sebastien.kerisit@pnl.gov;
frances.skomurski@pnl.gov; kevin.rosso@pnl.gov
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 63-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804410
ER
PT J
AU Zhang, GX
Senko, JM
Kemner, KM
Burgos, WD
AF Zhang, Gengxin
Senko, John M.
Kemner, K. M.
Burgos, William D.
TI Long-term biostimulation in uranium-contaminated iron-rich saprolite,
followed by reoxidation
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Gengxin] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Senko, John M.] Univ Akron, Dept Geol & Environm Sci, Akron, OH 44325 USA.
[Kemner, K. M.] Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA.
[Burgos, William D.] Penn State Univ, Dept Civil & Environm Engn, University Pk, PA 16801 USA.
EM zhangg@ornl.gov; senko@uakron.edu; kemner@anl.gov; wdb3@psu.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 71-GEOC
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857804393
ER
PT J
AU Zhang, MM
Anderson, BJ
Warzinski, RP
Holder, GD
AF Zhang, Meimei
Anderson, Brian J.
Warzinski, Robert P.
Holder, Gerald D.
TI Molecular dynamics simulation of hydrate lattice distortion
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Meimei; Holder, Gerald D.] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA.
[Anderson, Brian J.] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA.
[Warzinski, Robert P.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
EM Brian.Anderson@mail.wvu.edu; warzinsk@netl.doe.gov;
holder@engrng.pitt.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 130-FUEL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803787
ER
PT J
AU Zhang, SJ
Bucknall, D
Hong, KL
He, LH
Mays, JW
AF Zhang, Shanju
Bucknall, David
Hong, Kunlun
He, Lihong
Mays, Jimmy W.
TI Novel thermally switchable smart polymer films
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Shanju; Bucknall, David] Georgia Inst Technol, Sch Polymer Text & Fiber Engn, Atlanta, GA 30332 USA.
[Hong, Kunlun; He, Lihong; Mays, Jimmy W.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Hong, Kunlun; He, Lihong; Mays, Jimmy W.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM szhang30@mail.gatech.edu; david.bucknall@ptfe.gatech.edu;
hongkq@ornl.gov; jimmymays@utk.edu
RI Zhang, Shanju/E-5119-2011; Bucknall, David/F-7568-2016
OI Bucknall, David/0000-0003-4558-6933
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 305-PMSE
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857807082
ER
PT J
AU Zhang, ZY
Nenoff, TM
Huang, JY
Berry, DT
Provencio, PP
AF Zhang, Zhenyuan
Nenoff, Tina M.
Huang, Jianyu
Berry, Donald T.
Provencio, Paula P.
TI Synthesis of Ni-based nanoalloys at room temperature
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Zhenyuan; Nenoff, Tina M.] Sandia Natl Labs, Dept Surface & Interface Sci, Albuquerque, NM 87185 USA.
[Huang, Jianyu] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
[Berry, Donald T.] Sandia Natl Labs, Dept Hot Cells & Gamma Facil, Albuquerque, NM 87185 USA.
[Provencio, Paula P.] Sandia Natl Labs, Dept Radiat Solid Interact, Albuquerque, NM 87185 USA.
EM zhezhan@sandia.gov; tmnenof@sandia.gov; jhuang@sandia.gov
RI Huang, Jianyu/C-5183-2008
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 21-INOR
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857805174
ER
PT J
AU Zhang, ZY
Nenoff, TM
Huang, JY
Berry, DT
Provencio, PP
AF Zhang, Zhenyuan
Nenoff, Tina M.
Huang, Jianyu
Berry, Donald T.
Provencio, Paula P.
TI Room temperature synthesis of Ag-Ni alloy nanoparticles
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Zhenyuan; Nenoff, Tina M.] Sandia Natl Labs, Dept Surface & Interface Sci, Albuquerque, NM 87185 USA.
[Huang, Jianyu] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA.
[Berry, Donald T.] Sandia Natl Labs, Dept Hot Cells & Gamma Facil, Albuquerque, NM 87185 USA.
[Provencio, Paula P.] Sandia Natl Labs, Dept Radiat Solid Interact, Albuquerque, NM 87185 USA.
EM zhezhan@sandia.gov; tmnenof@sandia.gov; jhuang@sandia.gov
RI Huang, Jianyu/C-5183-2008
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 442-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803114
ER
PT J
AU Zhang, ZY
Sanbonmatsu, KY
Voth, GA
AF Zhang, Zhiyong
Sanbonmatsu, Kevin Y.
Voth, Gregory A.
TI Coarse-grained models to reflect functional dynamics of large
biomolecules obtained by an elastic network model
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
C1 [Zhang, Zhiyong; Voth, Gregory A.] Univ Utah, Ctr Biophys Modeling & Simulat, Dept Chem, Salt Lake City, UT 84112 USA.
[Sanbonmatsu, Kevin Y.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM zzhang@hec.utah.edu; kys@lanl.gov; voth@chem.utah.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0065-7727
J9 ABSTR PAP AM CHEM S
JI Abstr. Pap. Am. Chem. Soc.
PD MAR 22
PY 2009
VL 237
MA 14-COMP
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA V16GJ
UT WOS:000207857803569
ER
PT J
AU Park, JY
Qi, YB
Ashby, PD
Hendriksen, BLM
Salmeron, M
AF Park, Jeong Young
Qi, Yabing
Ashby, Paul D.
Hendriksen, Bas L. M.
Salmeron, Miquel
TI Electrical transport and mechanical properties of alkylsilane
self-assembled monolayers on silicon surfaces probed by atomic force
microscopy
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE atomic force microscopy; deformation; elemental semiconductors;
friction; island structure; monolayers; organic compounds;
self-assembly; silicon; surface conductivity; surface topography
ID OCTADECYLTRICHLOROSILANE MONOLAYERS; ELECTRONIC TRANSPORT;
ORGANIC-MOLECULES; ALKYL MONOLAYERS; CHAIN-LENGTH; FRICTION; FILMS;
CALIBRATION; JUNCTIONS; ADHESION
AB The correlation between molecular conductivity and mechanical properties (molecular deformation and frictional responses) of hexadecylsilane self-assembled monolayers was studied with conductive probe atomic force microscopy/friction force microscopy in ultrahigh vacuum. Current and friction were measured as a function of applied pressure, simultaneously, while imaging the topography of self-assembled monolayer molecule islands and silicon surfaces covered with a thin oxide layer. Friction images reveal lower friction over the molecules forming islands than over the bare silicon surface, indicating the lubricating functionality of alkylsilane molecules. By measuring the tunneling current change due to changing of the height of the molecular islands by tilting the molecules under pressure from the tip, we obtained an effective conductance decay constant (beta) of 0.52/A.
C1 [Park, Jeong Young; Qi, Yabing; Ashby, Paul D.; Hendriksen, Bas L. M.; Salmeron, Miquel] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Qi, Yabing] Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA.
[Salmeron, Miquel] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Park, JY (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM jypark@lbl.gov; mbsalmeron@lbl.gov
RI Qi, Yabing/A-9243-2010; Park, Jeong Young/A-2999-2008; Hendriksen,
Bas/B-8427-2013; Qi, Yabing/O-7807-2014
OI Qi, Yabing/0000-0002-4876-8049
FU Office of Energy Research, Office of Basic Energy Sciences, Molecular
Foundry, Materials Sciences Division, U. S. Department of Energy through
the Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Korea
Science and Engineering Foundation [31-2008-000-10055-0]
FX This work was supported by the Director, Office of Energy Research,
Office of Basic Energy Sciences, Molecular Foundry, Materials Sciences
Division, U. S. Department of Energy through the Lawrence Berkeley
National Laboratory (Contract No. DE-AC02-05CH11231). J. Y. P.
acknowledges the partial support by the Korea Science and Engineering
Foundation Grant (WCU program, 31-2008-000-10055-0).
NR 33
TC 17
Z9 17
U1 0
U2 18
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 21
PY 2009
VL 130
IS 11
AR 114705
DI 10.1063/1.3089789
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 421TE
UT WOS:000264380400031
PM 19317553
ER
PT J
AU Wang, MH
Penner, JE
Liu, XH
AF Wang, Minghuai
Penner, Joyce E.
Liu, Xiaohong
TI Coupled IMPACT aerosol and NCAR CAM3 model: Evaluation of predicted
aerosol number and size distribution
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Review
ID CLOUD CONDENSATION NUCLEI; ATMOSPHERIC SULFURIC-ACID; PARTICLE FORMATION
EVENTS; MARINE BOUNDARY-LAYER; SEA-SALT SULFATE; OFF-LINE MODEL; BLACK
CARBON; VERSION-3 CAM3; CLIMATE MODEL; MICROPHYSICS MODEL
AB Simulated aerosol fields from a coupled aerosol/atmospheric circulation model that includes prediction of both sulfate aerosol size and number are evaluated. Sensitivity tests are used to evaluate uncertainties due to the inclusion of primary emitted particulate sulfate as a means of representing nucleation of particles in subgrid-scale plumes, the use of two boundary layer aerosol nucleation mechanisms, and a three-mode sulfate aerosol representation. Simulated annual and global aerosol budgets are comparable to other model studies with the exception of carbonaceous aerosols and fine mode dust, where smaller mass concentrations are simulated. The model underestimates the accumulation mode aerosol number in the marine boundary layer over middle and low latitudes, which is consistent with an underestimate of fine mode sea salt mass in these locations. Primary emitted particulate sulfate contributes significantly to aerosol number at sites located in the boundary layer over Europe, but the absence of constraints on the number of such particles from either observations or fine-resolution models makes this treatment undesirable. Boundary layer nucleation mechanisms improve the comparison of simulated aerosol number concentrations with observations in the marine boundary layer, suggesting that a treatment of boundary layer nucleation is needed in global aerosol models, although more studies are needed to quantify how different nucleation mechanisms and condensable gases other than sulfuric acid affect aerosol number. The three-mode representation of sulfate aerosol simulates the observed increase in accumulation mode number concentration with altitude in the upper troposphere and improves the simulated Aitken mode aerosol number concentration there. This indicates the importance of a separate representation of freshly nucleated particles when nucleation is an important source of particle number concentrations.
C1 [Wang, Minghuai; Penner, Joyce E.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Liu, Xiaohong] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Wang, MH (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, 2455 Hayward St, Ann Arbor, MI 48109 USA.
EM minghuai@umich.edu
RI Wang, Minghuai/E-5390-2011; Penner, Joyce/J-1719-2012; Liu,
Xiaohong/E-9304-2011
OI Wang, Minghuai/0000-0002-9179-228X; Liu, Xiaohong/0000-0002-3994-5955
FU National Science Foundation [ATM-0333016]; NASA [NNG04GC01G]
FX The authors acknowledge partial support from the National Science
Foundation under grant ATM-0333016 and the support of NASA from grant
NNG04GC01G. Pacific Northwest National Laboratory is operated for the
DOE by Battelle Memorial Institute under contract DE-AC06-76RLO 1830.
NR 125
TC 42
Z9 42
U1 3
U2 26
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 MAR 21
PY 2009
VL 114
AR D06302
DI 10.1029/2008JD010459
PG 30
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 422PH
UT WOS:000264439700001
ER
PT J
AU Fadleys, CS
AF Fadleys, Charles S.
TI X-ray photoelectron spectroscopy: From origins to future directions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Review
DE Photoelectron spectroscopy; XPS; Photoemission; Synchrotron radiation
ID ANGULAR-DISTRIBUTION PARAMETERS; AUGER-ELECTRON-SPECTROSCOPY; CORE-LEVEL
PHOTOEMISSION; RANGE 100-5000 EV; CROSS-SECTIONS; BINDING ENERGIES;
PHOTO-IONIZATION; SURFACE-ANALYSIS; SINGLE-CRYSTAL; VALENCE BANDS
AB In this overview, I will briefly explore some of the earliest seeds of modern X-ray photoelectron spectroscopy, as pioneered by Siegbahn and collaborators, and then turn to some examples of how these seeds have sprouted in several present and promising future applications of this technique. Some of the future areas explored will be the use chemical shifts and multiplet splittings in the study of strongly correlated materials, photoelectron diffraction and holography for atomic structure determinations, standing-wave and hard X-ray excited photoemission for probing buried interfaces and bulk properties, valence-band mapping with soft and hard X-ray excitation, and time-resolved measurements with the sample at high ambient pressures in the multi-torr regime. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Fadleys, Charles S.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Fadleys, Charles S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Fadleys, CS (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
EM fadley@physics.ucdavis.edu
FU Office of Science; Office of Basic Energy Sciences, Materials Sciences
and Engineering Division; US Department of Energy [DE-AC02-05CH11231];
Alexander von Humboldt Foundation; Helmholtz Association
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, by the
Alexander von Humboldt Foundation and Helmholtz Association through a
Helmholtz-Humboldt Award for the author, and by the julich Research
Center. The author is very grateful to Claus Schneider of the Julich
Research Center and Wilfried Wurth of the University of Hamburg for
acting as hosts for this award. The author also thanks L. Plucinski, J.
Minar, Y. Takata, E. Rotenberg, Z. Yin, and W.E. Pickett for providing
results prior to publication.
NR 108
TC 20
Z9 20
U1 6
U2 78
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD MAR 21
PY 2009
VL 601
IS 1-2
SI SI
BP 8
EP 31
DI 10.1016/j.nima.2008.12.189
PG 24
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 429KC
UT WOS:000264918300003
ER
PT J
AU Ogletree, DF
Bluhm, H
Hebenstreit, ED
Salmeron, M
AF Ogletree, D. Frank
Bluhm, Hendrik
Hebenstreit, Eleonore D.
Salmeron, Miquel
TI Photoelectron spectroscopy under ambient pressure and temperature
conditions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE In situ electron spectroscopy; Environmental science; Catalysis
ID SUM-FREQUENCY GENERATION; ADVANCED LIGHT-SOURCE; X-RAY MICROSCOPY;
ELECTRON-SPECTROSCOPY; METHANOL SYNTHESIS; AQUEOUS-SOLUTIONS;
SOLID-SURFACES; GAS-PHASE; WATER; LIQUID
AB We describe the development and applications of novel instrumentation for photoemission spectroscopy of solid or liquid surfaces in the presence of gases under ambient conditions of pressure and temperature. The new instrument overcomes the strong scattering of electrons in gases by the use of an aperture close to the surface followed by a differentially-pumped electrostatic lens system. In addition to the scattering problem, experiments in the presence of condensed water or other liquids require the development of special sample holders to provide localized cooling. We discuss the first two generations of Ambient Pressure PhotoEmission Spectroscopy (APPES) instruments developed at synchrotron light sources (ALS in Berkeley and BESSY in Berlin), with special focus on the Berkeley instruments. Applications to environmental science and catalytic chemical research are illustrated in two examples. Published by Elsevier B.V.
C1 [Ogletree, D. Frank; Hebenstreit, Eleonore D.; Salmeron, Miquel] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Bluhm, Hendrik] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Salmeron, Miquel] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Salmeron, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM salmeron@stm.lbl.gov
RI Ogletree, D Frank/D-9833-2016
OI Ogletree, D Frank/0000-0002-8159-0182
NR 67
TC 94
Z9 95
U1 7
U2 60
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 21
PY 2009
VL 601
IS 1-2
BP 151
EP 160
DI 10.1016/j.nima.2008.12.155
PG 10
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 429KC
UT WOS:000264918300015
ER
PT J
AU Brocorens, P
Van Vooren, A
Chabinyc, ML
Toney, MF
Shkunov, M
Heeney, M
McCulloch, I
Cornil, J
Lazzoroni, R
AF Brocorens, Patrick
Van Vooren, Antoine
Chabinyc, Michael L.
Toney, Michael F.
Shkunov, Maxim
Heeney, Martin
McCulloch, Iain
Cornil, Jerome
Lazzoroni, Roberto
TI Solid-State Supramolecular Organization of Polythiophene Chains
Containing Thienothiophene Units
SO ADVANCED MATERIALS
LA English
DT Article
ID FORCE-FIELD; MOLECULAR-DYNAMICS; CARRIER MOBILITY; THIN-FILMS; POLYMERS;
POLY(3-ALKYLTHIOPHENES); POLY(3-HEXYLTHIOPHENE); POLYCARBONATES;
TRANSPORT; WEIGHT
AB We use molecular modeling and the simulation of X-ray diffraction patterns to determine the molecular packing of a thiophene-based polymer showing exceptionally high field-effect mobilities (up to 1 cm(2)V(-1)s(-1)). We focus on the organization of the polymer chains in lamellae and the orientation of these crystalline domains with respect to the substrate in thin films. The analysis is supported by XRD and NEXAFS experiments,and is complemented by calculating intermolecular transfer integrals, which govern the charge mobility.
C1 [Brocorens, Patrick; Van Vooren, Antoine; Cornil, Jerome; Lazzoroni, Roberto] Univ Mons, Lab Chem Novel Mat, B-7000 Mons, Belgium.
[Chabinyc, Michael L.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA.
[Toney, Michael F.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
[Shkunov, Maxim] Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England.
[Heeney, Martin] Univ London, Dept Mat, London E1 4NS, England.
[McCulloch, Iain] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
RP Brocorens, P (reprint author), Univ Mons, Lab Chem Novel Mat, Pl Parc 20, B-7000 Mons, Belgium.
EM patrick@averell.umh.ac.be
RI Chabinyc, Michael/E-2387-2011; Heeney, Martin/O-1916-2013
OI Heeney, Martin/0000-0001-6879-5020
FU European Union [NMP4-CT-2004-500355]; Belgian Federal Science Policy
Office [PAI 6/27]; FNRS-FRFC; Fonds pour la Formation la Recherche dans
l'Industrie et dans l'Agriculture (FRIA)
FX This work was supported by the European Union NAIMO Integrated Project
(NMP4-CT-2004-500355), the Interuniversity Attraction Pole program of
the Belgian Federal Science Policy Office (PAI 6/27), and by FNRS-FRFC.
J. C. is an FNRS Research Associate; A. V. V. acknowledges a grant from
Fonds pour la Formation la Recherche dans l'Industrie et dans
l'Agriculture (FRIA). Portions of this research were carried out at the
Stanford Synchrotron Radiation Laboratory, a national user facility
operated by Stanford University on behalf of the U.S. Department of
Energy, Office of Basic Energy Sciences. Supporting Information is
available online from Wiley InterScience or from the author.
NR 25
TC 41
Z9 42
U1 0
U2 27
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0935-9648
J9 ADV MATER
JI Adv. Mater.
PD MAR 20
PY 2009
VL 21
IS 10-11
BP 1193
EP 1198
DI 10.1002/adma.200801668
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 425UN
UT WOS:000264662900024
ER
PT J
AU Westphal, AJ
Fakra, SC
Gainsforth, Z
Marcus, MA
Ogliore, RC
Butterworth, AL
AF Westphal, A. J.
Fakra, S. C.
Gainsforth, Z.
Marcus, M. A.
Ogliore, R. C.
Butterworth, A. L.
TI MIXING FRACTION OF INNER SOLAR SYSTEM MATERIAL IN COMET 81P/WILD2
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE comets: general; comets: individual (81P/Wild2); Kuiper Belt; meteors,
meteoroids; solar system: formation
ID CRYSTALLINE SILICATES; CHONDRULE FORMATION; NEBULA; FE; MODEL; DUST;
SPECTROSCOPY; ACCRETION; STARDUST; AEROGEL
AB The presence of crystalline silicates in the comae of comets, inferred through infrared observations, has been a long-standing puzzle. Crystalline silicates are unexpected if comets are composed of pristine interstellar material, since interstellar silicates are almost entirely amorphous. Heating to > 1100 K can anneal silicates to crystallinity, but no protoplanetary heating sources have been identified that were sufficiently strong to heat materials in the outer nebula to such high temperatures. This conundrum led to the suggestion that large-scalemixing was important in the protoplanetary disk. Reports of refractory calcium-aluminum-rich inclusion-like objects and large concentrations of noble gases in Stardust samples underscore the need for such mixing. However, the evidence from the Stardust samples until now has been largely anecdotal, and it has not been possible to place quantitative constraints on the mixing fraction. Here we report synchrotron-based X-ray microprobe measurements of the relative concentrations of the chemical state of iron in material from a known comet, the Jupiter-family comet 81P/Wild2. We find that the comet is rich in iron sulfides. The elemental S/Fe ratio based on the sulfide concentration, S/Fe > 0.31(2 sigma), is higher than in most chondritic meteorites. We also found that Fe-bearing silicates are at least 50% crystalline. Based on these measurements, we estimate the fraction psi of inner nebular material in 81P/Wild2. With the lower bound on the crystalline Fe-bearing silicate fraction, we find that psi > 0.5. If the observed S depletion in the inner solar system predated or was contemporaneous with large-scale mixing, our lower bound on the S/Fe ratio gives an upper bound on psi of similar to 0.65. This measurement may be used to test mixing models of the early solar system.
C1 [Westphal, A. J.; Gainsforth, Z.; Ogliore, R. C.; Butterworth, A. L.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Fakra, S. C.; Marcus, M. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Westphal, AJ (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
NR 69
TC 38
Z9 38
U1 0
U2 10
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 20
PY 2009
VL 694
IS 1
BP 18
EP 28
DI 10.1088/0004-637X/694/1/18
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 420LQ
UT WOS:000264291700003
ER
PT J
AU Farouqi, K
Kratz, KL
Mashonkina, LI
Pfeiffer, B
Cowan, JJ
Thielemann, FK
Truran, JW
AF Farouqi, K.
Kratz, K. -L.
Mashonkina, L. I.
Pfeiffer, B.
Cowan, J. J.
Thielemann, F. -K.
Truran, J. W.
TI NUCLEOSYNTHESIS MODES IN THE HIGH-ENTROPY WIND OF TYPE II SUPERNOVAE:
COMPARISON OF CALCULATIONS WITH HALO-STAR OBSERVATIONS
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE nuclear reactions, nucleosynthesis, abundances; stars: abundances;
stars: Population II
ID NEUTRON-CAPTURE ELEMENTS; METAL-POOR STARS; R-PROCESS NUCLEOSYNTHESIS;
DRIVEN WINDS; NUCLEAR-STRUCTURE; EARLY GALAXY; 1ST STARS; MILKY-WAY;
PHYSICS; RICH
AB While the high-entropy wind ( HEW) of Type II supernovae remains one of the more promising sites for the rapid neutron-capture (r-) process, hydrodynamic simulations have yet to reproduce the astrophysical conditions under which the latter occurs. We have performed large-scale network calculations within an extended parameter range of the HEW, seeking to identify or to constrain the necessary conditions for a full reproduction of all r-process residuals N-r,N-circle dot = N-circle dot-N-s,N-circle dot by comparing the results with recent astronomical observations. A superposition of weighted entropy trajectories results in an excellent reproduction of the overall N-r,N-circle dot pattern beyond Sn. For the lighter elements, from the Fe group via Sr-Y-Zr to Ag, our HEW calculations indicate a transition from the need for clearly different sources (conditions/sites) to a possible co-production with r-process elements, provided a range of entropies are contributing. This explains recent halo-star observations of a clear noncorrelation of Zn and Ge and a weak correlation of Sr-Zr with heavier r-process elements. Moreover, new observational data on Ru and Pd also seem to confirm a partial correlation with Sr as well as the main r-process elements (e.g., Eu).
C1 [Farouqi, K.; Truran, J. W.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Farouqi, K.; Pfeiffer, B.] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany.
[Kratz, K. -L.] Max Planck Inst Chem, Otto Hahn Inst, D-55128 Mainz, Germany.
[Mashonkina, L. I.] Russian Acad Sci, Inst Astron, RU-119017 Moscow, Russia.
[Cowan, J. J.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Truran, J. W.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Farouqi, K (reprint author), Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
EM farouqi@uchicago.edu; klkratz@uni-mainz.de; lima@inasan.ru;
BPfeiffe@uni-mainz.de; cowan@nhn.ou.edu; F-K.Thielemann@unibas.ch;
truran@nova.uchicago.edu
FU Deutsche Forschungsgemeinschaft (DFG); Helmholtz Gemeinschaft; NSF; DOE
FX We thank R. Gallino for helpful discussions. Partial financial support
for this research was provided by the Deutsche Forschungsgemeinschaft
(DFG), the Helmholtz Gemeinschaft, the NSF, the DOE as well as the Swiss
NSF.
NR 39
TC 54
Z9 55
U1 0
U2 3
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 MAR 20
PY 2009
VL 694
IS 1
BP L49
EP L53
DI 10.1088/0004-637X/694/1/L49
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 419CK
UT WOS:000264196500011
ER
PT J
AU Seeliger, MA
Kuriyan, J
AF Seeliger, Markus A.
Kuriyan, John
TI A MAPK scaffold Lends a Helping Hand
SO CELL
LA English
DT Editorial Material
ID PROTEINS; KINASE
AB The scaffold proteins of signaling pathways are thought to act as passive tethering devices bringing together catalytic components of signaling cascades. Good et al. (2009) now reveal that in the budding yeast the scaffold protein Ste5 acts as an allosteric activator of the mitogen-activated protein kinase Fus3, rendering it competent to be a kinase substrate for signal transmission.
C1 [Seeliger, Markus A.; Kuriyan, John] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Seeliger, Markus A.; Kuriyan, John] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Seeliger, Markus A.; Kuriyan, John] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Kuriyan, John] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Kuriyan, J (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
EM kuriyan@berkeley.edu
RI Seeliger, Markus/D-6409-2013
FU Howard Hughes Medical Institute
NR 6
TC 5
Z9 5
U1 0
U2 1
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0092-8674
J9 CELL
JI Cell
PD MAR 20
PY 2009
VL 136
IS 6
BP 994
EP 996
DI 10.1016/j.cell.2009.03.002
PG 4
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 422CE
UT WOS:000264403900004
PM 19303841
ER
PT J
AU Morris, JR
Aga, RS
Egami, T
Levashov, VA
AF Morris, James R.
Aga, Rachel S.
Egami, Takeshi
Levashov, Valentin A.
TI SIMULATING THE EFFECT OF POISSON RATIO ON METALLIC GLASS PROPERTIES
SO INTERNATIONAL JOURNAL OF MODERN PHYSICS B
LA English
DT Article; Proceedings Paper
CT 5th International Conference on Advanced Materials and Processing
CY SEP 02-05, 2008
CL Harbin Inst Technol, Harbin, PEOPLES R CHINA
SP Natl Key Lab Preis Hot Proc Metals, State Key Lab Adv Welding Product Technol, Natl Nat Sci Fdn China, Minerals, Metals & Mat Soc
HO Harbin Inst Technol
DE Metallic glass; Poisson ratio; molecular dynamics
ID ENERGY LANDSCAPE; FORMING LIQUID; FCC METALS; TRANSITION
AB Recent work has shown that many metallic glass properties correlate with the Poisson ratio of the glass. We have developed a new model for simulating the atomistic behavior of liquids and glasses that allows us to change the Poisson ratio, while keeping the crystalline phase cohesive energy, lattice constant, and bulk modulus fixed. A number of liquid and glass properties are shown to be directly affected by the Poisson ratio. An increasing Poisson ratio stabilizes the liquid structure relative to the crystal phase, as indicated by a significantly lower melting temperature and by a lower enthalpy of the liquid phase. The liquids clearly exhibit two changes in behavior: one at low temperatures, associated with the conventional glass transition T(g), and a second, higher temperature change associated with the shear properties of the liquids. This second crossover has a characteristic, measurable change in the liquid structure.
C1 [Morris, James R.; Aga, Rachel S.; Egami, Takeshi] Oak Ridge Natl Lab, MS&T Div, Oak Ridge, TN 37831 USA.
[Aga, Rachel S.] Wright State Univ, Dept Chem, Dayton, OH 45435 USA.
[Morris, James R.; Egami, Takeshi; Levashov, Valentin A.] Univ Tennessee, Knoxville, TN 37996 USA.
RP Morris, JR (reprint author), Oak Ridge Natl Lab, MS&T Div, Oak Ridge, TN 37831 USA.
RI Morris, J/I-4452-2012
OI Morris, J/0000-0002-8464-9047
NR 18
TC 3
Z9 3
U1 0
U2 8
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0217-9792
J9 INT J MOD PHYS B
JI Int. J. Mod. Phys. B
PD MAR 20
PY 2009
VL 23
IS 6-7
BP 1229
EP 1234
PG 6
WC Physics, Applied; Physics, Condensed Matter; Physics, Mathematical
SC Physics
GA 446PX
UT WOS:000266134700075
ER
PT J
AU Hale, L
Gschneidner, KA
Pecharsky, VK
Mudryk, Y
AF Hale, Lucas
Gschneidner, K. A., Jr.
Pecharsky, V. K.
Mudryk, Y.
TI Low temperature properties of some RIn3 compounds
SO JOURNAL OF ALLOYS AND COMPOUNDS
LA English
DT Article
DE Rare earth compounds; Magnetically ordered intermetallics; Heat
capacity; X-ray diffraction
ID INDIUM
AB The low temperature heat capacity of ErIn3 has been studied because of its potential as a regenerator material. Slight variations from stoichiometry and plastic deformation have been shown to affect the heat capacity of ErIn3. The (HoxEr1-x)In-3 system has been studied in detail revealing that the lattice parameter varies linearly as a function of x, while the Neel temperatures vary with a slight departure from linearity. An analysis of the concentration dependence of the Neel temperature in the (HoxEr1-x)In-3 system indicates that when the rare earth metal size is within 5.65% of the indium radius, a narrow solid solution region forms on the indium-rich side of the RIn3 phase. A high-resolution X-ray powder diffraction study does not reveal a structural distortion in ErIn3, or (Ho0.25In0.75)In-3, or HoIn3. Rare earth substitutions (R = Y, Ce, Pr, and Dy) for the Er in (RxEr1-x)In-3 shift the Neel temperature and may have a significant effect on the heat capacity, depending on the rare earth metal. (C) 2008 Elsevier B.V. All rights reserved
C1 [Hale, Lucas; Gschneidner, K. A., Jr.; Pecharsky, V. K.; Mudryk, Y.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
[Hale, Lucas; Gschneidner, K. A., Jr.; Pecharsky, V. K.] Iowa State Univ, Dept Mat Sci, Ames, IA 50011 USA.
[Hale, Lucas] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA.
RP Gschneidner, KA (reprint author), Iowa State Univ, Ames Lab, US DOE, 255 Spedding, Ames, IA 50011 USA.
EM cagey@ameslab.gov
FU U.S. Department of Energy, Basic Energy Sciences [DE-AC02-07CH11358]
FX The authors thank A.O. Tsokol for her comments. The Ames Laboratory is
supported by the U.S. Department of Energy, Basic Energy Sciences under
Contract no DE-AC02-07CH11358 with Iowa State University of Science and
Technology.
NR 16
TC 5
Z9 5
U1 1
U2 15
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 MAR 20
PY 2009
VL 472
IS 1-2
BP 24
EP 29
DI 10.1016/j.jallcom.2008.04.097
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 427CK
UT WOS:000264757200012
ER
PT J
AU Nischang, I
Svec, F
Frechet, JMJ
AF Nischang, Ivo
Svec, Frantisek
Frechet, Jean M. J.
TI Effect of capillary cross-section geometry and size on the separation of
proteins in gradient mode using monolithic poly(butyl
methacrylate-co-ethylene dimethacrylate) columns
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE Porous polymer monolith; Scalability; Nano-LC; Conduit shape; Proteins;
Reversed phase HPLC
ID PERFORMANCE LIQUID-CHROMATOGRAPHY; CHIP ELECTROCHROMATOGRAPHY; HEIGHT
EQUIVALENT; THEORETICAL PLATE; STATIONARY PHASES; INNER DIAMETERS;
ASPECT RATIO; ELECTROPHORESIS; CHANNELS; POLYMER
AB Porous polymer monoliths have been prepared in capillaries with circular or square cross-sections and lateral dimensions of 50, 75, 100 mu m as well as in a rectangular 38 mu m x 95 mu m capillary. These capillaries have been used to determine the effect of the size and shape of their cross-section on the porous and hydrodynamic properties of poly(butyl methacrylate-co-ethylene dimethacrylate) monoliths. The capillaries were studied by scanning electron microscopy and evaluated for their permeability to flow and their performance in the liquid chromatographic separation of a protein mixture comprising ribonuclease A.cytochrome c. myoglobin, and ovalbumin using a linear gradient of acetonitrile in the mobile phase. No differences resulting from channel geometry were found for the various capillary columns. These results demonstrate that standard capillaries with circular geometry area good and affordable alternative conduit for modeling the processes carried out in microfluidic chips with a variety of geometries. (c) 2009 Published by Elsevier B.V.
C1 [Nischang, Ivo; Frechet, Jean M. J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Svec, Frantisek; Frechet, Jean M. J.] EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Frechet, JMJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM frechet@berkeley.edu
RI Nischang, Ivo/B-8619-2013;
OI Frechet, Jean /0000-0001-6419-0163
FU National Institute of General Medical Sciences; National Institutes of
Health [GM48364]; US Department of Energy [DE-AC02-05CH11231]
FX Support of this research by a grant of the National Institute of General
Medical Sciences, National Institutes of Health (GM48364) is gratefully
acknowledged. Characterization work carried out at the Molecular Foundry
was supported by the Director, Office of Science, Office of Basic Energy
Sciences, Division of Materials Sciences and Engineering, of the US
Department of Energy under Contract No. DE-AC02-05CH11231.
NR 45
TC 40
Z9 40
U1 2
U2 23
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0021-9673
EI 1873-3778
J9 J CHROMATOGR A
JI J. Chromatogr. A
PD MAR 20
PY 2009
VL 1216
IS 12
BP 2355
EP 2361
DI 10.1016/j.chroma.2009.01.007
PG 7
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 419KH
UT WOS:000264217800019
PM 19201413
ER
PT J
AU Lemons, DS
Winske, D
Daughton, W
Albright, B
AF Lemons, Don S.
Winske, Dan
Daughton, William
Albright, Brian
TI Small-angle Coulomb collision model for particle-in-cell simulations
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Collision algorithm; Particle-in-cell simulation; Plasma simulations;
Numerical methods; Coulomb collisions in plasmas; Stochastic
differential equations
ID PLASMA SIMULATION; INTERPENETRATION
AB We construct and investigate a set of stochastic differential equations that incorporate the physics of velocity-dependent small-angle Coulomb collisions among the plasma particles in a particle-in-cell simulation. Each particle is scattered stochastically from all the other particles in a simulation cell modeled as one or more Maxwellians. Total energy and momentum are conserved by linear transformation of the velocity increments. In two test simulations the proposed "particle-moment" collision algorithm performs well with time steps as large as 10% of the relaxation time - far larger than a particle-pairing collision algorithm, in which pairs of particles are scattered from one another, requires to achieve the same accuracy. (c) 2008 Elsevier Inc. All rights reserved.
C1 [Lemons, Don S.] Bethel Coll, N Newton, KS 67117 USA.
[Winske, Dan; Daughton, William; Albright, Brian] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Lemons, DS (reprint author), Bethel Coll, N Newton, KS 67117 USA.
EM lemons.don@gmail.com
RI Daughton, William/L-9661-2013;
OI Albright, Brian/0000-0002-7789-6525
FU Los Alamos by the NW Supporting Research Program
FX This work is supported at Los Alamos by the NW Supporting Research
Program. The authors acknowledge helpful conversations with Bruce Cohen
of Lawrence Livermore National Laboratory.
NR 28
TC 26
Z9 26
U1 0
U2 5
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 MAR 20
PY 2009
VL 228
IS 5
BP 1391
EP 1403
DI 10.1016/j.jcp.2008.10.025
PG 13
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 407NC
UT WOS:000263370600005
ER
PT J
AU Saurel, R
Petitpas, F
Berry, RA
AF Saurel, Richard
Petitpas, Fabien
Berry, Ray A.
TI Simple and efficient relaxation methods for interfaces separating
compressible fluids, cavitating flows and shocks in multiphase mixtures
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Hyperbolic systems; Multifluid; Multiphase; Real gases; Cavitation;
Multiphysic; Godunov
ID TO-DETONATION TRANSITION; GODUNOV METHOD; LEVEL-SET; GRANULAR-MATERIALS;
PROJECTION METHOD; FRONT TRACKING; 2-PHASE FLOW; MODEL; EQUATIONS;
COMPUTATIONS
AB Numerical approximation of the five-equation two-phase flow of Kapila et al. [A.K. Kapila, R. Menikoff, J.B. Bdzil, S.F. Son, D.S. Stewart, Two-phase modeling of deflagration-to-detonation transition in granular materials: reduced equations, Physics of Fluids 13(10) (2001) 3002-3024] is examined. This model has shown excellent capabilities for the numerical resolution of interfaces separating compressible fluids as well as wave propagation in compressible mixtures [A. Murrone, H. Guillard, A five equation reduced model for compressible two phase flow problems, journal of Computational Physics 202(2) (2005) 664-698; R. Abgrall, V. Perrier, Asymptotic expansion of a multiscale numerical scheme for compressible multiphase flows, SIAM Journal of Multiscale and Modeling and Simulation (5) (2006) 84-115; F. Petitpas, E. Franquet, R. Saurel, O. Le Metayer, A relaxation-projection method for compressible flows. Part II. The artificial heat exchange for multiphase shocks, journal of Computational Physics 225(2) (2007) 2214-2248]. However, its numerical approximation poses some serious difficulties. Among them, the non-monotonic behavior of the sound speed causes inaccuracies in wave's transmission across interfaces. Moreover, volume fraction variation across acoustic waves results in difficulties for the Riemann problem resolution, and in particular for the derivation of approximate solvers. Volume fraction positivity in the presence of shocks or strong expansion waves is another issue resulting in lack of robustness. To circumvent these difficulties, the pressure equilibrium assumption is relaxed and a pressure non-equilibrium model is developed. It results in a single velocity, non-conservative hyperbolic model with two energy equations involving relaxation terms. It fulfills the equation of state and energy conservation on both sides of interfaces and guarantees correct transmission of shocks across them. This formulation considerably simplifies numerical resolution. Following a strategy developed previously for another flow model [R. Saurel, R. Abgrall, A multiphase Godunov method for multifluid and multiphase flows, journal of Computational Physics 150 (1999) 425-467], the hyperbolic part is first solved without relaxation terms with a simple, fast and robust algorithm, valid for unstructured meshes. Second, stiff relaxation terms are solved with a Newton method that also guarantees positivity and robustness. The algorithm and model are compared to exact solutions of the Euler equations as well as solutions of the five-equation model under extreme flow conditions, for interface computation and cavitating flows involving dynamics appearance of interfaces. In order to deal with correct dynamic of shock waves propagating through multiphase mixtures, the artificial heat exchange method of Petitpas et al. [F. Petitpas, E. Franquet, R. Saurel, O. Le Metayer, A relaxation-projection method for compressible flows. Part II. The artificial heat exchange for multiphase shocks, journal of Computational Physics 225(2) (2007) 2214-2248] is adapted to the present formulation. (c) 2008 Elsevier Inc. All rights reserved.
C1 [Saurel, Richard; Petitpas, Fabien] Aix Marseille Univ, Polytech Marseille, F-13453 Marseille 13, France.
[Saurel, Richard; Petitpas, Fabien] IUSTI INRIA, CNRS, SMASH Project, UMR 6595, F-13453 Marseille 13, France.
[Saurel, Richard] Univ Inst France, F-13453 Marseille 13, France.
[Berry, Ray A.] Idaho Natl Lab, Multiphys Methods Grp, Adv Nucl Energy Syst Dept, Idaho Falls, ID 83415 USA.
RP Saurel, R (reprint author), Aix Marseille Univ, Polytech Marseille, 5 Rue E Fermi, F-13453 Marseille 13, France.
EM Richard.Saurel@polytech.univ-mrs.fr
RI Petitpas, Fabien/G-3164-2013;
OI Saurel, Richard/0000-0001-7338-7371
NR 54
TC 101
Z9 103
U1 7
U2 31
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 MAR 20
PY 2009
VL 228
IS 5
BP 1678
EP 1712
DI 10.1016/j.jcp.2008.11.002
PG 35
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 407NC
UT WOS:000263370600022
ER
PT J
AU Wu, MS
Wang, MT
Nix, J
Hryshko, LV
Zheng, L
AF Wu, Mousheng
Wang, Meitian
Nix, Jay
Hryshko, Larry V.
Zheng, Lei
TI Crystal Structure of CBD2 from the Drosophila Na+/Ca2+ Exchanger:
Diversity of Ca2+ Regulation and Its Alternative Splicing Modification
SO JOURNAL OF MOLECULAR BIOLOGY
LA English
DT Article
DE Ca2+ regulation; crystal structures; Na+/Ca2+ exchanger; alternative
splicing; Drosophila melanogaster
ID CARDIAC NA+-CA2+ EXCHANGER; CA2+-BINDING DOMAIN; MUTATIONAL ANALYSIS;
NCX1; ISOFORMS; MODEL; MELANOGASTER; REFINEMENT; KINETICS; BRAIN
AB Na+/Ca2+ exchangers (NCXs) promote the extrusion of intracellular Ca2+ to terminate numerous Ca2+-mediated signaling processes. Ca2+, interaction at two Ca2+ binding domains (CBDs; CBD1 and CBD2) is important for tight regulation of the exchange activity. Diverse Ca2+ regulatory properties have been reported with several NCX isoforms; whether the regulatory diversity of NCXs is related to structural differences of the pair of CBDs is presently unknown. Here, we reported the crystal structure of CBD2 from the Drosophila melanogaster exchanger CALX1.1. We show that the CALX1.1-CBD2 is an immunoglobulin-like structure, similar to mammalian NCX1-CBD2, but the predicted Ca2+, interaction region of CALX1.1-CBD2 is arranged in a manner that precludes Ca2+ binding. The carboxylate residues that coordinate two Ca2+, in the NCX1-CBD1 structure are neutralized by two Lys residues in CALX1.1-CBD2. This structural observation was further confirmed by isothermal titration calorimetry. The CALX1.1-CBD2 structure also clearly shows the alternative splicing region forming two adjacent helices perpendicular to CBD2. Our results provide structural evidence that the diversity of Ca2+ regulatory properties of NCX proteins can be achieved by (1) local structure rearrangement of Ca2+ binding site to change Ca2+ binding properties of CBD2 and (2) alternative splicing variation altering the protein domain-domain conformation to modulate the Ca2+ regulatory behavior. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Wu, Mousheng; Zheng, Lei] Univ Texas Houston, Sch Med, Dept Biochem & Mol Biol, Ctr Membrane Biol, Houston, TX 77030 USA.
[Wang, Meitian] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
[Nix, Jay] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Mol Biol Consortium, Berkeley, CA 94720 USA.
[Hryshko, Larry V.] Univ Manitoba, St Boniface Hosp Res Ctr, Inst Cardiovasc Sci, Winnipeg, MB R2H 2A6, Canada.
RP Zheng, L (reprint author), Univ Texas Houston, Sch Med, Dept Biochem & Mol Biol, Ctr Membrane Biol, 6431 Fannin St, Houston, TX 77030 USA.
EM lei.zheng@uth.tmc.edu
RI Wang, Meitian/D-3208-2013
FU American Heart Association [0830353N]; Canadian Institutes of Health
Research; Canada Research Chair
FX We thank John L. Spudich for valuable discussion and comments on the
manuscript. This work has been supported by grants from the American
Heart Association (0830353N to L.Z.) and the Canadian Institutes of
Health Research (to L.V.H.). L.V.H. is also supported by a Canada
Research Chair.
NR 29
TC 28
Z9 28
U1 0
U2 5
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 MAR 20
PY 2009
VL 387
IS 1
BP 104
EP 112
DI 10.1016/j.jmb.2009.01.045
PG 9
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 425AS
UT WOS:000264610000009
PM 19361442
ER
PT J
AU Pedzisa, L
Hay, BP
AF Pedzisa, Lee
Hay, Benjamin P.
TI Aliphatic C-H center dot center dot center dot Anion Hydrogen Bonds:
Weak Contacts or Strong Interactions?
SO JOURNAL OF ORGANIC CHEMISTRY
LA English
DT Article
ID GAS-PHASE ANIONS; SYNTHETIC RECEPTORS; HALIDE-IONS; MOLECULAR
RECOGNITION; EXCHANGE EQUILIBRIA; STRUCTURAL CRITERIA; AQUEOUS-SOLUTION;
HOST MOLECULES; BRONSTED ACIDS; NITRATE ANION
AB Electronic structure calculations, MP2/aug-cc-pVDZ, are used to determine C-H center dot center dot center dot Cl(-) hydrogen bond energies for a series of XCH(3) donor groups in which the electron-withdrawing ability of X is varied over a wide range of values. When attached to polarizing substituents, aliphatic CH groups are moderate-to-strong hydrogen bond donors, exhibiting interaction energies comparable to those obtained with O-H and N-H groups. The results explain why aliphatic C-H donors are observed to function as competitive binding sites in solution and suggest that such C-H center dot center dot center dot anion contacts should be considered as possible contributors when evaluating the denticity of an anion receptor.
C1 [Pedzisa, Lee; Hay, Benjamin P.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Hay, BP (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM haybp@ornl.gov
RI Pedzisa, Lee/H-3061-2016
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725];
Associated Colleges of the Midwest Oak Ridge Science Semester; Oak Ridge
Associated Universities HERE Program
FX This research was sponsored by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy, under contract number DE-AC05-00OR22725 with Oak
Ridge National Laboratory managed by UT-Battelle, LLC. L.P. was
sponsored in part by the Associated Colleges of the Midwest Oak Ridge
Science Semester and the Oak Ridge Associated Universities HERE Program.
NR 71
TC 58
Z9 58
U1 0
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0022-3263
J9 J ORG CHEM
JI J. Org. Chem.
PD MAR 20
PY 2009
VL 74
IS 6
BP 2554
EP 2560
DI 10.1021/jo900018u
PG 7
WC Chemistry, Organic
SC Chemistry
GA 417XI
UT WOS:000264111400040
PM 19215106
ER
PT J
AU Yagci, B
Filiz, S
Romero, LL
Ozdoganlar, OB
AF Yagci, Baris
Filiz, Sinan
Romero, Louis L.
Ozdoganlar, O. Burak
TI A spectral-Tchebychev technique for solving linear and nonlinear beam
equations
SO JOURNAL OF SOUND AND VIBRATION
LA English
DT Article
ID DYNAMIC STIFFNESS MATRIX; FREE-VIBRATION ANALYSIS; AMPLITUDE
FREE-VIBRATIONS; LOADED TIMOSHENKO BEAM; MICROELECTROMECHANICAL SYSTEMS;
TRANSVERSE VIBRATIONS; CHEBYSHEV POLYNOMIALS; HARMONIC EXCITATION;
NONPRISMATIC BEAM; GENERAL ALGORITHM
AB This paper presents a spectral-Tchebychev technique for solving linear and nonlinear beam problems. The technique uses Tchebychev polynomials as spatial basis functions, and applies Galerkin's method to obtain the spatially discretized equations of motion. Unlike alternative techniques that require different admissible functions for each different set of boundary conditions, the spectral-Tchebychev technique incorporates the boundary conditions into the derivation, and thereby enables the utilization of the solution for any linear boundary conditions without re-derivation. Furthermore, the proposed technique produces symmetric system matrices for self-adjoint problems. In this work, the spectral-Tchebychev solutions for Euler-Bernoulli and Timoshenko beams are derived. The convergence and accuracy characteristics of the spectral-Tchebychev technique is studied by solving eigenvalue problems with different boundary conditions. It is found that the convergence is exponential, and a small number of polynomials is sufficient to obtain machine-precision accuracy. The application of the technique is demonstrated by solving: (1) eigenvalue problems for tapered Timoshenko beams with different boundary conditions, taper ratios, and beam lengths; (2) an Euler-Bernoulli beam problem with spatially and temporally varying forcing, elastic boundary, and damping; (3) large-deflection (nonlinear) Euler-Bernoulli beam problems with different boundary conditions; and (4) a micro-beam problem with nonlinear electrostatic excitation. The results obtained from the spectral-Tchebychev solutions arc seen to be in excellent agreement with those presented in the literature. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Yagci, Baris; Filiz, Sinan; Ozdoganlar, O. Burak] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA.
[Romero, Louis L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ozdoganlar, OB (reprint author), Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA.
EM ozdoganlar@cmu.edu
NR 56
TC 18
Z9 19
U1 2
U2 13
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-460X
EI 1095-8568
J9 J SOUND VIB
JI J. Sound Vibr.
PD MAR 20
PY 2009
VL 321
IS 1-2
BP 375
EP 404
DI 10.1016/j.jsv.2008.09.040
PG 30
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 421HG
UT WOS:000264349400022
ER
PT J
AU Abelev, BI
Aggarwal, MM
Ahammed, Z
Anderson, BD
Arkhipkin, D
Averichev, GS
Bai, Y
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Baumgart, S
Beavis, DR
Bellwied, R
Benedosso, F
Betancourt, MJ
Betts, RR
Bhardwaj, S
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Biritz, B
Bland, LC
Bombara, M
Bonner, BE
Botje, M
Bouchet, J
Braidot, E
Brandin, AV
Bruna, E
Bueltmann, S
Burton, TP
Bystersky, M
Cai, XZ
Caines, H
Sanchez, MCD
Callner, J
Catu, O
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, SU
Clarke, RF
Codrington, MJM
Coffin, JP
Corliss, R
Cormier, TM
Cosentino, MR
Cramer, JG
Crawford, HJ
Das, D
Dash, S
Daugherity, M
De Silva, C
Dedovich, TG
DePhillips, M
Derevschikov, AA
de Souza, RD
Didenko, L
Djawotho, P
Dogra, SM
Dong, X
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Ma, YG
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Majka, R
Mall, OI
Mangotra, LK
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Mioduszewski, S
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Munhoz, MG
Nandi, BK
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Pachr, M
Page, BS
Pal, SK
Pandit, Y
Panebratsev, Y
Pawlak, T
Peitzmann, T
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Perkins, C
Peryt, W
Phatak, SC
Planinic, M
Pluta, J
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Poskanzer, AM
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Pruneau, C
Pruthi, NK
Putschke, J
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Ridiger, A
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Rose, A
Roy, C
Ruan, L
Russcher, MJ
Rykov, V
Sahoo, R
Sakrejda, I
Sakuma, T
Salur, S
Sandweiss, J
Sarsour, M
Schambach, J
Scharenberg, RP
Schmitz, N
Seger, J
Selyuzhenkov, I
Seyboth, P
Shabetai, A
Shahaliev, E
Shao, M
Sharma, M
Shi, SS
Shi, XH
Sichtermann, EP
Simon, F
Singaraju, RN
Skoby, MJ
Smirnov, N
Snellings, R
Sorensen, P
Sowinski, J
Spinka, HM
Srivastava, B
Stadnik, A
Stanislaus, TDS
Staszak, D
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Subba, NL
Sumbera, M
Sun, XM
Sun, Y
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Surrow, B
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
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Thein, D
Thomas, JH
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Timoshenko, S
Tlusty, D
Tokarev, M
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Tram, VN
Trattner, AL
Trentalange, S
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Tsai, OD
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Ullrich, T
Underwood, DG
Van Buren, G
van Leeuwen, M
Vander Molen, AM
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasilevski, IM
Vasiliev, AN
Videbaek, F
Vigdor, SE
Viyogi, YP
Vokal, S
Voloshin, SA
Wada, M
Waggoner, WT
Walker, M
Wang, F
Wang, G
Wang, JS
Wang, Q
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Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
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Xu, N
Xu, QH
Xu, Y
Xu, Z
Yepes, P
Yoo, IK
Yue, Q
Zawisza, M
Zbroszczyk, H
Zhan, W
Zhang, H
Zhang, S
Zhang, WM
Zhang, Y
Zhang, ZP
Zhao, Y
Zhong, C
Zhou, J
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Zoulkarneeva, Y
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Aggarwal, M. M.
Ahammed, Z.
Anderson, B. D.
Arkhipkin, D.
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Bai, Y.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baudot, J.
Baumgart, S.
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Bellwied, R.
Benedosso, F.
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Bhardwaj, S.
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Bhati, A. K.
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Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Callner, J.
Catu, O.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
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Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
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Coffin, J. P.
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Cormier, T. M.
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Crawford, H. J.
Das, D.
Dash, S.
Daugherity, M.
De Silva, C.
Dedovich, T. G.
DePhillips, M.
Derevschikov, A. A.
de Souza, R. Derradi
Didenko, L.
Djawotho, P.
Dogra, S. M.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, F.
Dunlop, J. C.
Mazumdar, M. R. Dutta
Edwards, W. R.
Efimov, L. G.
Elhalhuli, E.
Elnimr, M.
Emelianov, V.
Engelage, J.
Eppley, G.
Erazmus, B.
Estienne, M.
Eun, L.
Fachini, P.
Fatemi, R.
Fedorisin, J.
Feng, A.
Filip, P.
Finch, E.
Fine, V.
Fisyak, Y.
Gagliardi, C. A.
Gaillard, L.
Gangadharan, D. R.
Ganti, M. S.
Garcia-Solis, E.
Ghazikhanian, V.
Ghosh, P.
Gorbunov, Y. N.
Gordon, A.
Grebenyuk, O.
Grosnick, D.
Grube, B.
Guertin, S. M.
Guimaraes, K. S. F. F.
Gupta, A.
Gupta, N.
Guryn, W.
Haag, B.
Hallman, T. J.
Hamed, A.
Harris, J. W.
He, W.
Heinz, M.
Heppelmann, S.
Hippolyte, B.
Hirsch, A.
Hjort, E.
Hoffman, A. M.
Hoffmann, G. W.
Hofman, D. J.
Hollis, R. S.
Huang, H. Z.
Humanic, T. J.
Igo, G.
Iordanova, A.
Jacobs, P.
Jacobs, W. W.
Jakl, P.
Jin, F.
Jones, C. L.
Jones, P. G.
Joseph, J.
Judd, E. G.
Kabana, S.
Kajimoto, K.
Kang, K.
Kapitan, J.
Kaplan, M.
Keane, D.
Kechechyan, A.
Kettler, D.
Khodyrev, V. Yu.
Kikola, D. P.
Kiryluk, J.
Kisiel, A.
Klein, S. R.
Knospe, A. G.
Kocoloski, A.
Koetke, D. D.
Kopytine, M.
Kotchenda, L.
Kouchpil, V.
Kravtsov, P.
Kravtsov, V. I.
Krueger, K.
Krus, M.
Kuhn, C.
Kumar, L.
Kurnadi, P.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, C-H.
Leight, W.
LeVine, M. J.
Li, C.
Li, N.
Li, Y.
Lin, G.
Lindenbaum, S. J.
Lisa, M. A.
Liu, F.
Liu, H.
Liu, J.
Liu, L.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Love, W. A.
Lu, Y.
Ludlam, T.
Lynn, D.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Mangotra, L. K.
Manweiler, R.
Margetis, S.
Markert, C.
Matis, H. S.
Matulenko, Yu. A.
McShane, T. S.
Meschanin, A.
Milner, R.
Minaev, N. G.
Mioduszewski, S.
Mischke, A.
Mitchell, J.
Mohanty, B.
Morozov, D. A.
Munhoz, M. G.
Nandi, B. K.
Nattrass, C.
Nayak, T. K.
Nelson, J. M.
Nepali, C.
Netrakanti, P. K.
Ng, M. J.
Nogach, L. V.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Okada, H.
Okorokov, V.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Peitzmann, T.
Perevoztchikov, V.
Perkins, C.
Peryt, W.
Phatak, S. C.
Planinic, M.
Pluta, J.
Poljak, N.
Poskanzer, A. M.
Potukuchi, B. V. K. S.
Prindle, D.
Pruneau, C.
Pruthi, N. K.
Putschke, J.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Ridiger, A.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Rose, A.
Roy, C.
Ruan, L.
Russcher, M. J.
Rykov, V.
Sahoo, R.
Sakrejda, I.
Sakuma, T.
Salur, S.
Sandweiss, J.
Sarsour, M.
Schambach, J.
Scharenberg, R. P.
Schmitz, N.
Seger, J.
Selyuzhenkov, I.
Seyboth, P.
Shabetai, A.
Shahaliev, E.
Shao, M.
Sharma, M.
Shi, S. S.
Shi, X-H.
Sichtermann, E. P.
Simon, F.
Singaraju, R. N.
Skoby, M. J.
Smirnov, N.
Snellings, R.
Sorensen, P.
Sowinski, J.
Spinka, H. M.
Srivastava, B.
Stadnik, A.
Stanislaus, T. D. S.
Staszak, D.
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.
Symons, T. J. M.
de Toledo, A. Szanto
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Tang, A. H.
Tang, Z.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Timoshenko, S.
Tlusty, D.
Tokarev, M.
Trainor, T. A.
Tram, V. N.
Trattner, A. L.
Trentalange, S.
Tribble, R. E.
Tsai, O. D.
Ulery, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Leeuwen, M.
Vander Molen, A. M.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasilevski, I. M.
Vasiliev, A. N.
Videbaek, F.
Vigdor, S. E.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Wada, M.
Waggoner, W. T.
Walker, M.
Wang, F.
Wang, G.
Wang, J. S.
Wang, Q.
Wang, X.
Wang, X. L.
Wang, Y.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y.
Xie, W.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yepes, P.
Yoo, I-K.
Yue, Q.
Zawisza, M.
Zbroszczyk, H.
Zhan, W.
Zhang, H.
Zhang, S.
Zhang, W. M.
Zhang, Y.
Zhang, Z. P.
Zhao, Y.
Zhong, C.
Zhou, J.
Zoulkarneev, R.
Zoulkarneeva, Y.
Zuo, J. X.
TI Observation of Two-Source Interference in the Photoproduction Reaction
AuAu -> AuAu rho(0)
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY-ION COLLISIONS; TIME PROJECTION CHAMBER; COLLIDERS; PHYSICS;
PHOTON
AB In ultraperipheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nucleus, emerging as a rho(0). The rho(0) production occurs in two well-separated (median impact parameters of 20 and 40 F for the cases considered here) nuclei, so the system forms a two-source interferometer. At low transverse momenta, the two amplitudes interfere destructively, suppressing rho(0) production. Since the rho(0) decays before the production amplitudes from the two sources can overlap, the two-pion system can only be described with an entangled nonlocal wave function, and is thus an example of the Einstein-Podolsky-Rosen paradox. We observe this suppression in 200 GeV per nucleon-pair gold-gold collisions. The interference is 87%+/- 5%(stat.)+/- 8%(syst.) of the expected level. This translates into a limit on decoherence due to wave function collapse or other factors of 23% at the 90% confidence level.
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[Cai, X. Z.; Chen, J. H.; Jin, F.; Ma, G. L.; Ma, Y. G.; Shi, X-H.; Tian, J.; Zhang, S.; Zhong, C.; Zuo, J. X.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Erazmus, B.; Kabana, S.; Roy, C.; Sahoo, R.] SUBATECH, Nantes, France.
[Cervantes, M. C.; Clarke, R. F.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Sarsour, M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Daugherity, M.; Hoffmann, G. W.; Kajimoto, K.; Markert, C.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, X.; Wang, Y.; Yue, Q.] 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.; Webb, J. C.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.] Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.; Trainor, T. A.] Univ Washington, Seattle, WA 98195 USA.
[Bellwied, R.; Cormier, T. M.; De Silva, C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Chen, H. F.; Feng, A.; Li, N.; Liu, L.; Shi, S. S.; Wu, Y.] HZNU, CCNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Baumgart, S.; Bruna, E.; Caines, H.; Catu, O.; Chikanian, A.; Du, F.; Finch, E.; Harris, J. W.; Heinz, M.; Knospe, A. G.; Lin, G.; Majka, R.; Nattrass, C.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Abelev, BI (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Dogra, Sunil /B-5330-2013; Fornazier Guimaraes, Karin
Silvia/H-4587-2016; Chaloupka, Petr/E-5965-2012; Nattrass,
Christine/J-6752-2016; Derradi de Souza, Rafael/M-4791-2013; Suaide,
Alexandre/L-6239-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017;
Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013; Planinic,
Mirko/E-8085-2012; Yoo, In-Kwon/J-6222-2012; Peitzmann,
Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Voloshin,
Sergei/I-4122-2013; Pandit, Yadav/I-2170-2013; Lednicky,
Richard/K-4164-2013; Cosentino, Mauro/L-2418-2014; Sumbera,
Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Barnby,
Lee/G-2135-2010; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012
OI Sorensen, Paul/0000-0001-5056-9391; Thomas, James/0000-0002-6256-4536;
Fornazier Guimaraes, Karin Silvia/0000-0003-0578-9533; Nattrass,
Christine/0000-0002-8768-6468; 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;
Fisyak, Yuri/0000-0002-3151-8377; Peitzmann, Thomas/0000-0002-7116-899X;
Pandit, Yadav/0000-0003-2809-7943; Cosentino,
Mauro/0000-0002-7880-8611; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Barnby,
Lee/0000-0001-7357-9904; Takahashi, Jun/0000-0002-4091-1779
FU U. S. DOE Office of Science; U. S. NSF; Sloan Foundation; DFG Excellence
Cluster EXC153 of Germany; CNRS/IN2P3; RA; RPL; EMN of France; STFC;
EPSRC; FAPESP of Brazil; Russian Ministry of Science and Technology;
NNSFC; CAS; MoST; MoE of China; IRP; GA of the Czech Republic; FOM of
The Netherlands; DAE; DST; CSIR of the Government of India; Swiss NSF;
Polish State Committee for Scientific Research; Korea Science and
Engineering Foundation
FX We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center
at LBNL, and the resources provided by the Open Science Grid consortium
for their support. 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 Excellence Cluster EXC153 of Germany; CNRS/IN2P3,
RA, RPL, and EMN of France; STFC and EPSRC of the United Kingdom; FAPESP
of Brazil; the Russian Ministry of Science and Technology; the NNSFC,
CAS, MoST, and MoE of China; IRP and GA of the Czech Republic; FOM of
The Netherlands; DAE, DST, and CSIR of the Government of India; the
Swiss NSF; the Polish State Committee for Scientific Research; and the
Korea Science and Engineering Foundation.
NR 27
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U1 1
U2 16
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 MAR 20
PY 2009
VL 102
IS 11
AR 112301
DI 10.1103/PhysRevLett.102.112301
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200020
PM 19392193
ER
PT J
AU Baily, SA
Kohama, Y
Hiramatsu, H
Maiorov, B
Balakirev, FF
Hirano, M
Hosono, H
AF Baily, S. A.
Kohama, Y.
Hiramatsu, H.
Maiorov, B.
Balakirev, F. F.
Hirano, M.
Hosono, H.
TI Pseudoisotropic Upper Critical Field in Cobalt-Doped SrFe2As2 Epitaxial
Films
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NODELESS SUPERCONDUCTING GAPS
AB We present resistivity measurements of the complete superconducting upper critical field (H-c2) phase diagram as a function of angle (theta) and temperature (T) for cobalt-doped SrFe2As2 epitaxial films to 0.5 K and 50 T. Although H-c2(theta) at 10 K is indistinguishable from that derived from a single-band anisotropy model, the apparent anisotropy H-c2(perpendicular to c)/H-c2(parallel to c) linearly decreases to 1 at low T, with H-c2(0)=47 T. The data are well described by a two-band model with small, opposing anisotropies for the bands. This unusual relationship is confirmed by the observation of a local maximum for H-c2(parallel to c) at low T.
C1 [Baily, S. A.; Kohama, Y.; Balakirev, F. F.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA.
[Baily, S. A.; Maiorov, B.] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA.
[Kohama, Y.] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan.
[Hiramatsu, H.; Hirano, M.; Hosono, H.] Japan Sci & Technol Agcy, Frontier Res Ctr, Tokyo Inst Technol, ERATO SORST, Yokohama, Kanagawa 2268503, Japan.
RP Baily, SA (reprint author), Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA.
EM sbaily@lanl.gov
RI Hiramatsu, Hidenori/E-8882-2014; Hosono, Hideo/J-3489-2013;
OI Hiramatsu, Hidenori/0000-0002-5664-5831; Hosono,
Hideo/0000-0001-9260-6728; Maiorov, Boris/0000-0003-1885-0436
FU JSPS [19.9728]; NHMFL UCGP; U.S. NSF; U. S. DOE; state of Florida
FX Grant-in-Aid JSPS (Grant No. 19.9728) provided support for Y.Kohama.
This work is also supported by an NHMFL UCGP grant, the U.S. NSF, the U.
S. DOE, and the state of Florida.
NR 28
TC 87
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U1 0
U2 10
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 MAR 20
PY 2009
VL 102
IS 11
AR 117004
DI 10.1103/PhysRevLett.102.117004
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200058
PM 19392231
ER
PT J
AU Csaki, C
Falkowski, A
Nomura, Y
Volansky, T
AF Csaki, Csaba
Falkowski, Adam
Nomura, Yasunori
Volansky, Tomer
TI New Approach to the mu-B-mu Problem of Gauge-Mediated Supersymmetry
Breaking
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB We present a new approach to the mu-B-mu problem of gauge-mediated supersymmetry breaking. Rather than reducing the generically large contribution to B-mu we point out that acceptable electroweak symmetry breaking can be achieved with mu(2)< B-mu if at the same time B-mu < m(Hd)(2). This hierarchy can easily appear in models where the Higgs fields are directly coupled to the supersymmetry breaking sector. Such models can yield novel electroweak symmetry breaking vacua, can deal with the supersymmetric flavor and CP problems, allow for gauge coupling unification, and result in distinct phenomenological predictions for the spectrum of superparticles.
C1 [Csaki, Csaba] Cornell Univ, Newman Lab Elementary Particle Phys, Inst High Energy Phenomenol, Ithaca, NY 14853 USA.
[Falkowski, Adam] CERN, Div Theory, CH-1211 Geneva 23, Switzerland.
[Nomura, Yasunori] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Nomura, Yasunori] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA.
[Volansky, Tomer] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA.
RP Csaki, C (reprint author), Cornell Univ, Newman Lab Elementary Particle Phys, Inst High Energy Phenomenol, Ithaca, NY 14853 USA.
NR 18
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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 MAR 20
PY 2009
VL 102
IS 11
AR 111801
DI 10.1103/PhysRevLett.102.111801
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200018
PM 19392191
ER
PT J
AU Gonzalez, C
Guo, JD
Ortega, J
Flores, F
Weitering, HH
AF Gonzalez, C.
Guo, Jiandong
Ortega, J.
Flores, F.
Weitering, H. H.
TI Mechanism of the Band Gap Opening across the Order-Disorder Transition
of Si(111)(4x1)-In
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SCANNING-TUNNELING-MICROSCOPY; METAL-INSULATOR-TRANSITION; SURFACE;
SI(111); CHAINS; RECONSTRUCTIONS; INSTABILITY
AB The ground state properties of indium atom chains on the Si(111)8x2-In surface and the nature of their insulator-metal (IM) transition near 120 K are under intense dispute. We compare experimental scanning tunneling microscopy (STM) images of the low temperature (LT) 8x2 phase with STM image calculations from Density Functional Theory (DFT). Our LT studies clearly indicate the existence of a frozen shear distortion between neighboring atom chains, resulting in the formation of indium hexagons. Tunneling spectra furthermore indicate that the IM transition coincides with the collapse of a similar to 0.3 eV surface-state band gap at the Gamma point of the 4x2 Brillouin zone. This implies that the IM transition is driven by a shear phonon, not by Fermi surface nesting.
C1 [Gonzalez, C.; Ortega, J.; Flores, F.] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain.
[Gonzalez, C.] Acad Sci Czech Republic, Inst Phys, Prague 16253, Czech Republic.
[Ortega, J.; Weitering, H. H.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Guo, Jiandong] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
[Guo, Jiandong] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Weitering, H. H.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Gonzalez, C (reprint author), Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain.
RI Gonzalez, Cesar/C-4834-2011; Ortega Mateo, Jose/I-4358-2014; Flores,
fernando/K-2362-2014; Guo, Jiandong/F-2081-2015
OI Gonzalez, Cesar/0000-0001-5118-3597; Ortega Mateo,
Jose/0000-0001-9156-1038; Guo, Jiandong/0000-0002-7893-022X
FU NSF [DMR 0606485]; Oak Ridge National Laboratory; US Department of
Energy [DE-AC05-00OR22725]; Spanish Ministerio de Ciencia e Innovacion
[2007-0034, MAT-2007-60966]
FX We thank E. W. Plummer and P. C. Snijders for stimulating discussions.
The experimental work was funded by NSF Grant No. DMR 0606485 and by Oak
Ridge National Laboratory, which is supported by the Office of Science
of the US Department of Energy under Contract No. DE-AC05-00OR22725. The
theory component was funded by the Spanish Ministerio de Ciencia e
Innovacion under Grants Nos. 2007-0034 and MAT-2007-60966.
NR 28
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U1 5
U2 21
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 MAR 20
PY 2009
VL 102
IS 11
AR 115501
DI 10.1103/PhysRevLett.102.115501
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200039
PM 19392212
ER
PT J
AU Lee, HJ
Neumayer, P
Castor, J
Doppner, T
Falcone, RW
Fortmann, C
Hammel, BA
Kritcher, AL
Landen, OL
Lee, RW
Meyerhofer, DD
Munro, DH
Redmer, R
Regan, SP
Weber, S
Glenzer, SH
AF Lee, H. J.
Neumayer, P.
Castor, J.
Doeppner, T.
Falcone, R. W.
Fortmann, C.
Hammel, B. A.
Kritcher, A. L.
Landen, O. L.
Lee, R. W.
Meyerhofer, D. D.
Munro, D. H.
Redmer, R.
Regan, S. P.
Weber, S.
Glenzer, S. H.
TI X-Ray Thomson-Scattering Measurements of Density and Temperature in
Shock-Compressed Beryllium
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NATIONAL IGNITION FACILITY; EQUATION-OF-STATE; PLASMAS; MATTER; FLUID
AB We present the first x-ray scattering measurements of the state of compression and heating in laser irradiated solid beryllium. The scattered spectra at two different angles show Compton and plasmon features indicating a dense Fermi-degenerate plasma state with a Fermi energy above 30 eV and with temperatures in the range of 10-15 eV. These measurements indicate compression by a factor of 3 in agreement with Hugoniot data and detailed radiation-hydrodynamic modeling.
C1 [Lee, H. J.; Falcone, R. W.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Neumayer, P.; Castor, J.; Doeppner, T.; Hammel, B. A.; Kritcher, A. L.; Landen, O. L.; Lee, R. W.; Munro, D. H.; Weber, S.; Glenzer, S. H.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Fortmann, C.; Redmer, R.] Univ Rostock, Inst Phys, D-18051 Rostock, Germany.
[Meyerhofer, D. D.; Regan, S. P.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Lee, HJ (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA.
RI Redmer, Ronald/F-3046-2013
FU U. S. Department of Energy [DE-AC52-07NA27344]; National Laboratory User
Facility, Laboratory Directed Research and Development [08-ERI-002,
08-LW004]; Helmholtz association [VH-VI-104]; Deutsche
Forschungsgemeinschaft [SFB 652]
FX This work performed under the auspices of the U. S. Department of Energy
by Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. Work was also supported by the National Laboratory
User Facility, Laboratory Directed Research and Development Grants No.
08-ERI-002 and No. 08-LW004, by the Helmholtz association (VH-VI-104)
and by the Deutsche Forschungsgemeinschaft (SFB 652).
NR 31
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U2 16
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 MAR 20
PY 2009
VL 102
IS 11
AR 115001
DI 10.1103/PhysRevLett.102.115001
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200033
PM 19392206
ER
PT J
AU Litvinenko, VN
Derbenev, YS
AF Litvinenko, Vladimir N.
Derbenev, Yaroslav S.
TI Coherent Electron Cooling
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB Cooling intense high-energy hadron beams poses a major challenge for modern accelerator physics. The synchrotron radiation emitted from such beams is feeble; even in the Large Hadron Collider (LHC) operating with 7 TeV protons, the longitudinal damping time is about 13 hours. None of the traditional cooling methods seem able to cool LHC-class protons beams. In this Letter, we present a novel method of coherent electron cooling based on a high-gain free-electron laser (FEL). This technique could be critical for reaching high luminosities in hadron and electron-hadron colliders.
C1 [Litvinenko, Vladimir N.] Brookhaven Natl Lab, Long Isl City, NY USA.
[Derbenev, Yaroslav S.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA USA.
RP Litvinenko, VN (reprint author), Brookhaven Natl Lab, Long Isl City, NY USA.
EM vl@bnl.gov
FU U. S. Department of Energy.
FX Authors thank Ilan Ben Zvi (BNL) for inspiring discussions and many
interesting ideas related to the concept. We are grateful to Michael
Blaskiewicz, Yue Hao, Dmitry Kayran, Eduard Pozdeyev, Gang Wang, and
Vitaly Yakimenko (BNL); George I. Bell and David L. Bruhwiler (Tech X);
Oleg A. Shevchenko, and N. A. Vinokurov (BINP, Novosibirsk); and Sven
Reiche (PSI) for offering us a multitude of ideas, and posing
challenging questions for resolution. Authors acknowledge support of the
U. S. Department of Energy.
NR 15
TC 21
Z9 21
U1 0
U2 1
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 MAR 20
PY 2009
VL 102
IS 11
AR 114801
DI 10.1103/PhysRevLett.102.114801
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200032
PM 19392205
ER
PT J
AU Rech, J
Micklitz, T
Matveev, KA
AF Rech, Jerome
Micklitz, Tobias
Matveev, K. A.
TI Conductance of Fully Equilibrated Quantum Wires
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DIMENSIONAL ELECTRON-GAS; QUANTIZED CONDUCTANCE; BALLISTIC-RESISTANCE;
POINT CONTACTS; TRANSPORT
AB We study the conductance of a quantum wire in the presence of weak electron-electron scattering. In a sufficiently long wire the scattering leads to full equilibration of the electron distribution function in the frame moving with the electric current. At nonzero temperature this equilibrium distribution differs from the one supplied by the leads. As a result the contact resistance increases, and the quantized conductance of the wire acquires a quadratic in temperature correction. The magnitude of the correction is found by analysis of the conservation laws of the system and does not depend on the details of the interaction mechanism responsible for equilibration.
C1 [Rech, Jerome; Micklitz, Tobias; Matveev, K. A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Rech, Jerome] Univ Munich, Dept Phys, Arnold Sommerfeld Ctr Theoret Phys, D-80333 Munich, Germany.
[Rech, Jerome] Univ Munich, Ctr Nanosci, D-80333 Munich, Germany.
RP Rech, J (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
FU U. S. Department of Energy, Office of Science [DE-AC02-06CH11357]
FX We are grateful to A. V. Andreev and L. I. Glazman for helpful
discussions. This work was supported by the U. S. Department of Energy,
Office of Science, under Contract No. DE-AC02-06CH11357.
NR 20
TC 25
Z9 25
U1 2
U2 3
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 MAR 20
PY 2009
VL 102
IS 11
AR 116402
DI 10.1103/PhysRevLett.102.116402
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200047
PM 19392220
ER
PT J
AU Segal, Y
Reiner, JW
Kolpak, AM
Zhang, Z
Ismail-Beigi, S
Ahn, CH
Walker, FJ
AF Segal, Y.
Reiner, J. W.
Kolpak, A. M.
Zhang, Z.
Ismail-Beigi, S.
Ahn, C. H.
Walker, F. J.
TI Atomic Structure of the Epitaxial BaO/Si(001) Interface
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID X-RAY-DIFFRACTION; SILICON; GROWTH; OXIDES
AB We present the structure of the interface responsible for epitaxy of crystalline oxides on silicon. Using synchrotron x-ray diffraction, we observe a 2x1 unit cell reconstruction at the interface of BaO grown on Si(001) terminated with 1/2 ML of Sr. Since this symmetry is not present in bulk BaO or Si, only the interface contributes to diffracted intensity. First principles calculations accurately predict the observed diffraction and identify the structure of the BaO/Si interface, including the elemental composition and a sub-A rumpling due to epitaxial strain of the 7 adjacent BaO and Si layers.
C1 [Segal, Y.; Reiner, J. W.; Kolpak, A. M.; Ismail-Beigi, S.; Ahn, C. H.; Walker, F. J.] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA.
[Zhang, Z.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Segal, Y.; Reiner, J. W.; Kolpak, A. M.; Ismail-Beigi, S.; Ahn, C. H.; Walker, F. J.] Yale Univ, Ctr Res Interface Struct & Phenomena, New Haven, CT 06520 USA.
RP Segal, Y (reprint author), Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA.
RI Zhang, Zhan/A-9830-2008; Ismail-Beigi, Sohrab/F-2382-2014
OI Zhang, Zhan/0000-0002-7618-6134; Walker, Frederick/0000-0002-8094-249X;
Ismail-Beigi, Sohrab/0000-0002-7331-9624
FU National Science Foundation [DMR 0520495, DMR 0705799]; SRC; DOE
[DE-AC02-06CH11357]
FX We thank the team of the ID33 beam line at the APS for technical
assistance. We acknowledge support from the National Science Foundation
under MRSEC DMR 0520495 and DMR 0705799, and SRC. Use of the Advanced
Photon Source was supported by the DOE, Office of Science, Office of
Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
NR 18
TC 33
Z9 33
U1 1
U2 20
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 MAR 20
PY 2009
VL 102
IS 11
AR 116101
DI 10.1103/PhysRevLett.102.116101
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200045
PM 19392218
ER
PT J
AU Snezhko, A
Belkin, M
Aranson, IS
Kwok, WK
AF Snezhko, A.
Belkin, M.
Aranson, I. S.
Kwok, W. -K.
TI Self-Assembled Magnetic Surface Swimmers
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID INTERFACE
AB We report studies of novel self-assembled magnetic surface swimmers (magnetic snakes) formed from a dispersion of magnetic microparticles at a liquid-air interface and energized by an alternating magnetic field. We show that under certain conditions the snakes spontaneously break the symmetry of surface flows and turn into self-propelled objects. Parameters of the driving magnetic field tune the propulsion velocity of these snakelike swimmers. We find that the symmetry of the surface flows can also be broken in a controlled fashion by attaching a large bead to a magnetic snake (bead-snake hybrid), transforming it into a self-locomoting entity. The observed phenomena have been successfully described by a phenomenological model based on the amplitude equation for surface waves coupled to a large-scale hydrodynamic mean flow equation.
C1 [Snezhko, A.; Belkin, M.; Aranson, I. S.; Kwok, W. -K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Belkin, M.] IIT, Chicago, IL 60616 USA.
RP Snezhko, A (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Aranson, Igor/I-4060-2013
FU US DOE [DE-AC02-06CH11357]
FX This research was supported by US DOE, Grant No. DE-AC02-06CH11357.
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Z9 77
U1 3
U2 32
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 MAR 20
PY 2009
VL 102
IS 11
AR 118103
DI 10.1103/PhysRevLett.102.118103
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200068
PM 19392241
ER
PT J
AU Trionfi, A
Wang, DH
Jacobs, JD
Tan, LS
Vaia, RA
Hsu, JWP
AF Trionfi, A.
Wang, D. H.
Jacobs, J. D.
Tan, L. -S.
Vaia, R. A.
Hsu, J. W. P.
TI Direct Measurement of the Percolation Probability in Carbon
Nanofiber-Polyimide Nanocomposites
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NONUNIVERSAL BEHAVIOR; CONTINUUM-SYSTEMS; CONDUCTIVITY; COMPOSITES;
THRESHOLD; CLUSTER
AB We present the first experimental measurement of the geometric critical exponent beta associated with the percolation probability, the probability a metallic filler belongs to the conducting network, of an electrical composite. The technique employs conducting-tip atomic force microscopy to obtain a conducting areal density, and is demonstrated on polyimide nanocomposites containing different concentrations of carbon nanofibers. We find beta approximate to 1 and t (the exponent for bulk conductivity) approximate to 3. These values are consistent with the predictions for the Bethe lattice and larger than the values predicted in the 3D lattice percolation model. Hence, this electrical composite likely belongs to the same universality class as the Bethe lattice. The ability to measure geometric and transport critical exponents on the same material is critical to drawing this conclusion.
C1 [Trionfi, A.; Hsu, J. W. P.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Wang, D. H.; Jacobs, J. D.; Tan, L. -S.; Vaia, R. A.] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA.
RP Trionfi, A (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM trionfia@mailaps.org; jwhsu@sandia.gov
RI Wang, David/F-7492-2013
OI Wang, David/0000-0001-6710-7265
FU U. S. Department of Energy [DE-AC04-94AL85000]
FX We would like to thank D. Schaefer, G. Beaucage, K. Lyo, and R. Fleming
for useful discussion. This work was performed in part at the U. S.
Department of Energy, Center for Integrated Nanotechnologies, at Los
Alamos and Sandia National Laboratories. Sandia National Laboratories is
a multiprogram laboratory operated by Sandia Corporation, a Lockheed-
Martin Company, for the U. S. Department of Energy under Contract No.
DE-AC04-94AL85000.
NR 26
TC 24
Z9 24
U1 2
U2 15
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 MAR 20
PY 2009
VL 102
IS 11
AR 116601
DI 10.1103/PhysRevLett.102.116601
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 421TC
UT WOS:000264380200050
PM 19392223
ER
PT J
AU Christensen, ST
Elam, JW
Rabuffetti, FA
Ma, Q
Weigand, SJ
Lee, B
Seifert, S
Stair, PC
Poeppelmeier, KR
Hersam, MC
Bedzyk, MJ
AF Christensen, Steven T.
Elam, Jeffrey W.
Rabuffetti, Federico A.
Ma, Qing
Weigand, Steven J.
Lee, Byeongdu
Seifert, Soenke
Stair, Peter C.
Poeppelmeier, Kenneth R.
Hersam, Mark C.
Bedzyk, Michael J.
TI Controlled Growth of Platinum Nanoparticles on Strontium Titanate
Nanocubes by Atomic Layer Deposition
SO SMALL
LA English
DT Article
DE atomic layer deposition; nanoparticles; platinum; strontium titanate;
X-ray analysis
ID PARTICLE-SIZE; 1ST PRINCIPLES; METHANOL; CATALYSTS; FORMALDEHYDE;
OXIDATION; HYDROGEN; SRTIO3; ELECTROOXIDATION; PHOTOCATALYSIS
AB With an eye toward using surface morphology to enhance heterogeneous catalysis, Pt nanoparticles are grown by atomic layer deposition (ALD) on the surfaces of SrTiO(3) nanocubes. The size, dispersion, and chemical state of the Pt nanoparticles are controlled by the number of ALD growth cycles. The SrTiO(3) nanocubes average 60 nm on a side with {001} faces. The Pt loading increases linearly with Pt ALD cycles to a value of 1.1 X 10(-6) g cm(-2) after five cycles. Scanning electron microscopy images reveal discrete, well-dispersed Pt nanoparticles. Small- and wide-angle X-ray scattering show that the Pt nanoparticle spacing and size increase as the number of ALD cycles increases. X-ray absorption spectroscopy shows a progression from platinum(II) oxide to metallic platinum and a decrease in Pt-O bonding with an increase in Pt-Pt bonding as the number of ALD cycles increases.
C1 [Christensen, Steven T.; Hersam, Mark C.; Bedzyk, Michael J.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Rabuffetti, Federico A.; Stair, Peter C.; Poeppelmeier, Kenneth R.; Hersam, Mark C.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Ma, Qing; Weigand, Steven J.] Northwestern Univ, DND CAT Synchrotron Res Ctr, Evanston, IL 60208 USA.
[Lee, Byeongdu; Seifert, Soenke] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA.
RP Bedzyk, MJ (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
EM bedzyk@northwestern.edu
RI Hersam, Mark/B-6739-2009; Bedzyk, Michael/B-7503-2009; Bedzyk,
Michael/K-6903-2013;
OI Lee, Byeongdu/0000-0003-2514-8805
FU US Department of Energy [DE-FG02-03ER15457, DE-AC02-06CH11357]; National
Science Foundation [DMR-0520513]
FX This work was supported by the Institute for Catalysis in Energy
Processes, Northwestern University (NU) (US Department of Energy Grant
DE-FG02-03ER15457) and by facilities support from the NU Materials
Research Center (National Science Foundation MRSEC Grant DMR-0520513).
Argonne National Laboratory (ANL) is a US Department of Energy Office of
Science Laboratory operated under Contract No. DE-AC02-06CH11357 by
UChicago Argonne, LLC X-ray measurements were performed at ANL's
Advanced Photon Source, Sector 12 (BESSRC), and at Sector 5 (DND-CAT)
which is supported in part by. E. I. DuPont de Nemours & Co., Dow
Chemical Co., and the State of Illinois. Electron microscopy was
performed at ANL's Electron Microscopy Center for Materials Research.
NR 40
TC 108
Z9 109
U1 10
U2 96
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 MAR 20
PY 2009
VL 5
IS 6
BP 750
EP 757
DI 10.1002/smll.200801920
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 429QC
UT WOS:000264934200015
PM 19306465
ER
PT J
AU Greenfield, M
McGrane, SD
Moore, DS
AF Greenfield, M.
McGrane, S. D.
Moore, D. S.
TI Control of cis-Stilbene Photochemistry Using Shaped Ultraviolet Pulses
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID FEMTOSECOND QUANTUM CONTROL; CRYSTAL PHASE MODULATOR; FIELD
LASER-PULSES; MOLECULAR-DYNAMICS; COHERENT CONTROL; LIQUID-PHASE;
PHOTOISOMERIZATION REACTIONS; UNIMOLECULAR REACTIONS; SELECTIVE
CHEMISTRY; RAMAN-SPECTROSCOPY
AB We demonstrate product branching control of the photoisomerization and cyclization reactions of cis-stilbene dissolved in n-hexane. An acousto-optical modulator-based pulse shaper was used at 266 nm, in a shaped pump-supercontinuum probe technique, to enhance and suppress the relative yields of the cis- to trans-stilbene isomerization as well as the cis-stilbene to 4a,4b-dihydrophenanthrene cyclization. Global, local, and single variable optimization control schemes were all successful at controlling stilbene's excited-state intramolecular rearrangements. The presence of multiphoton transitions was determined to be crucial in changing the yield under the experimental conditions employed. We have mapped experimental conditions in which multiphoton absorption was successful in controlling photoproduct branching ratios in stilbene, illustrated that the intensity dependence of the product yields can provide details of reactive channel branching ratios of higher excited-states, and shown that under the experimental conditions employed (150 fs laser) intensity control was the only mechanism available to the optimal control methods employed that could affect reaction yields.
C1 [Greenfield, M.; McGrane, S. D.; Moore, D. S.] Los Alamos Natl Lab, Dynam & Energet Mat Div, Los Alamos, NM 87545 USA.
RP Greenfield, M (reprint author), Los Alamos Natl Lab, Dynam & Energet Mat Div, POB 1663, Los Alamos, NM 87545 USA.
EM margog@lanl.gov
RI Moore, David/C-8692-2013;
OI Mcgrane, Shawn/0000-0002-2978-3980
FU U.S. Department of Energy [DE-AC52-06NA25396]
FX We gratefully acknowledge the support of the U.S. Department of Energy
through the LANL/LDRD Program for this work. 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. Los Alamos
National Laboratory is 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. We also thank Dr. Mathias
Roth for helpful advice in building the pulse shaper.
NR 73
TC 28
Z9 28
U1 5
U2 24
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 MAR 19
PY 2009
VL 113
IS 11
BP 2333
EP 2339
DI 10.1021/jp801758v
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417XE
UT WOS:000264111000012
PM 19239213
ER
PT J
AU Leavitt, CM
Bryantsev, VS
de Jong, WA
Diallo, MS
Goddard, WA
Groenewold, GS
Van Stipdonk, MJ
AF Leavitt, Christopher M.
Bryantsev, Vyacheslav S.
de Jong, Wibe A.
Diallo, Mamadou S.
Goddard, William A., III
Groenewold, Gary S.
Van Stipdonk, Michael J.
TI Addition of H2O and O-2 to Acetone and Dimethylsulfoxide Ligated
Uranyl(V) Dioxocations
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID MAIN-GROUP THERMOCHEMISTRY; POLAR MOLECULE COLLISIONS; GAS-PHASE;
NONCOVALENT INTERACTIONS; SOLUTION CHEMISTRY; AQUO COMPLEXES; DENSITY;
IONS; HYDRATION; METAL
AB Gas-phase complexes of the formula [UO2(lig)](+) (lig = acetone (aco) or dimethylsulfoxide (dmso)) were generated by electrospray ionization (ESI) and studied by tandem ion-trap mass spectrometry to determine the general effect of ligand charge donation on the reactivity of UO2+ with respect to water and dioxygen. The original hypothesis that addition Of 02 is enhanced by strong a-donor ligands bound to UO2+ is supported by results from competitive collision-induced dissociation (CID) experiments, which show near exclusive loss of H2O from [UO2(dmso)(H2O)(O-2)](+), whereas both H2O and O-2 are eliminated from the corresponding [UO2(aco)(H2O)(O-2)](+) species. Ligand-addition reaction rates were investigated by monitoring precursor and product ion intensities as a function of ion storage time in the ion-trap mass spectrometer: these experiments suggest that the association of dioxygen to the UO2+ complex is enhanced when the more basic dmso ligand was coordinated to the metal complex. Conversely, addition of H2O is favored for the analogous complex ion that contains an aco ligand. Experimental rate measurements are supported by density function theory calculations of relative energies, which show stronger bonds between UO2+ and O-2 when dmso is the coordinating ligand, whereas bonds to H2O are stronger for the aco complex.
C1 [Groenewold, Gary S.] Idaho Natl Lab, Interfacial Chem Grp, Idaho Falls, ID USA.
[Leavitt, Christopher M.; Van Stipdonk, Michael J.] Wichita State Univ, Dept Chem, Wichita, KS 67208 USA.
[Bryantsev, Vyacheslav S.; Diallo, Mamadou S.; Goddard, William A., III] CALTECH, Beckman Inst 139 74, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA.
[de Jong, Wibe A.] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Van Stipdonk, MJ (reprint author), Idaho Natl Lab, Interfacial Chem Grp, Idaho Falls, ID USA.
EM gary.groenewold@inl.gov; mike.vanstipdonk@wichita.edu
RI DE JONG, WIBE/A-5443-2008; Bryantsev, Vyacheslav/M-5111-2016
OI DE JONG, WIBE/0000-0002-7114-8315; Bryantsev,
Vyacheslav/0000-0002-6501-6594
FU U.S. National Science Foundation (NSF) [CAREER-0239800]; U.S. Department
of Energy; INL LaboratoryNational Science Foundation [0506951 DE AC07
051D14517]; US Environmental Protection Agency [RD-83252501]; OBER
FX Work by M. J. Van Stipdonk and C. M. Leavitt was supported through a
grant from the U.S. National Science Foundation (NSF grant
CAREER-0239800). Work by G, S. Groenewold was supported by the U.S.
Department of Energy, INL Laboratory Directed Research & Development
Program under DOE Idaho Operations Office Contract DE AC07 051D14517.
Funding for this work was provided by the National Science Foundation
(NIRT CTS Award # 0506951) and by the US Environmental Protection Agency
(STAR Grant RD-83252501). Work by V. S. Bryantsev, M. S. Diallo, and W.
A. Goddard, III, is performed in part using the MSCF in EMSL, a national
Scientific user facility sponsored by the U.S. DOE, OBER and located at
PNNL. W. A. de Jong's research was supported by the BES Heavy Element
Chemistry program of the U.S. Department of Energy, Office of Science,
and was performed in part using the Molecular Science Computing Facility
in the William R. Wiley 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 the
Pacific Northwest National Laboratory, which is operated for the
Department of Energy by Battelle.
NR 48
TC 21
Z9 21
U1 1
U2 14
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 MAR 19
PY 2009
VL 113
IS 11
BP 2350
EP 2358
DI 10.1021/jp807651c
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417XE
UT WOS:000264111000014
PM 19216506
ER
PT J
AU Bahng, MK
Macdonald, RG
AF Bahng, Mi-Kyung
Macdonald, R. Glen
TI Determination of the Rate Constants for the Radical-Radical Reactions
NH2((X)over-tilde(2)B(1)) + NH(X-3 Sigma(-)) and
NH2((X)over-tilde(2)B(1)) + H(S-2) at 293 K
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID 193 NM PHOTOLYSIS; KINETICS; AMMONIA; HYDRAZINE; MECHANISM; NH3;
DECOMPOSITION; COMBUSTION; TRANSITION; GENERATION
AB The rate constant for the reactions NH2((X) over tilde B-2(1)) + NH(X-3 Sigma) and NH2((X) over tilde B-2(1)) + H(S-2) were measured over a pressure range from 2 to 10 Torr in CF4, or Ar gases at 293 +/- 2 K. The radicals were produced by the 193 nm photolysis of NH3 dilute in the carrier gas. Both radicals were monitored simultaneously following the photolysis laser pulse using high-resolution time-resolved absorption spectroscopy. The NH2 radical was monitored using the (1)2(21) <- (1)3(11) rotational transition of the (0,7,0)(A) over tilde (2)A(1) <- (0,0,0) (X) over tilde B-2(1) vibronic band near 675 nm, and the NH radical was monitored using the R-1(3)(4) rotational transition on the 1-0 vibrational transition near 3084 nm. The data was analyzed using model simulations of the NH2 and NH temporal concentration profiles. The rate constants for the NH2 + NH and NH2 + H reactions were found to be (9.6 +/- 3.2) x 10(-11) and (7.7 +/- 14) x 10(-15) cm(3) molecule(-1) s(-1), respectively, where the uncertainty includes an estimate of both systematic and random errors. The measurements were independent of the nature of the diluents, CF4 or Ar, and total pressure.
C1 [Bahng, Mi-Kyung; Macdonald, R. Glen] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Macdonald, RG (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM rgmacdonald@anl.gov
FU Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences; U.S. Department of Energy
[DE-AC02-06CH11357]
FX This work was performed under the auspices of the Office of Basic Energy
Sciences, Division of Chemical Sciences, Geosciences, and Biosciences,
U.S. Department of Energy, under Contract DE-AC02-06CH11357.
NR 40
TC 3
Z9 3
U1 0
U2 5
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 MAR 19
PY 2009
VL 113
IS 11
BP 2415
EP 2423
DI 10.1021/jp809643u
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417XE
UT WOS:000264111000022
PM 19222176
ER
PT J
AU Mardis, KL
Sutton, HM
Zuo, XB
Lindsey, JS
Tiede, DM
AF Mardis, Kristy L.
Sutton, Heather M.
Zuo, Xiaobing
Lindsey, Jonathan S.
Tiede, David M.
TI Solution-State Conformational Ensemble of a Hexameric Porphyrin Array
Characterized Using Molecular Dynamics and X-ray Scattering
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID LIGHT-HARVESTING ARCHITECTURES; STRUCTURAL-CHARACTERIZATION;
SUPRAMOLECULAR CHEMISTRY; ELECTRON-TRANSFER; ENERGY-FLOW; WHEEL;
DIFFRACTION; SIMULATION; FLEXIBILITY; PATHWAYS
AB Solution-phase X-ray scattering measurements in combination with coordinate-based modeling have been used to characterize the conformational ensemble of a hexameric, diphenylethyne-linked porphyrin array in solution. Configurationally broadened X-ray scattering patterns measured at room temperature for dilute toluene solutions of the porphyrin array were compared to scattering patterns calculated from structural ensembles in constant pressure and temperature molecular dynamics simulations. Thermal fluctuations sampled at picosecond intervals within nanosecond time scale dynamic simulations show large-amplitude motions that include porphyrin ring "tipping" around the porphyrin linkage axes and extended hexameric porphyrin array "breathing" motions involving torsional distortions collectively distributed along porphyrin and diphenylethyne groups. Each type of group motion produced characteristic, angle-dependent dampening of scattering features that are needed to reproduce dampening features in the experimental X-ray scattering. However, mismatches in the magnitudes of experimental and simulated dampening of high-angle X-ray scattering patterns show that large-amplitude hexamer array breathing-type motions are significantly under-represented in the simulated ensembles. This comparison between experiment and simulation provides a means not only to interpret scattering data in terms of an explicit atomic model but more generally demonstrates the use of solution X-ray scattering as an experimental benchmark for the development of simulation methods that more accurately predict configurational dynamics of supramolecular assemblies.
C1 [Mardis, Kristy L.; Sutton, Heather M.] Chicago State Univ, Dept Chem & Phys, Chicago, IL 60628 USA.
[Lindsey, Jonathan S.] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA.
[Zuo, Xiaobing; Tiede, David M.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
RP Mardis, KL (reprint author), Chicago State Univ, Dept Chem & Phys, Chicago, IL 60628 USA.
EM kmardis@csu.edu; tiede@anl.gov
RI Zuo, Xiaobing/F-1469-2010; Lindsey, Jonathan/J-7761-2012;
OI Mardis, Kristy/0000-0003-2633-9304
FU National Science Foundation [HRD-0413000]; NIH-MBRS [R25GM59218]; Office
of Science, Basic Energy Sciences, U.S. Department of Energy
[DE-AC02-06CH11357, DE-FG02-96ER14632]
FX This work was supported by the National Science Foundation IL-LSAMP
grant HRD-0413000 (H.M.S. and K.L.M.), NIH-MBRS grant R25GM59218
(H.M.S.), and the Office of Science, Basic Energy Sciences, U.S.
Department of Energy, under contract numbers DE-AC02-06CH11357 (D.M.T.
and work at APS sector 12) and DE-FG02-96ER14632 (J.S.L.). K.L.M. thanks
Dr. Sam Bowen for helpful discussions. We also acknowledge Dr. S.
Seifert for his generous help and advice on synchrotron X-ray
experiments.
NR 46
TC 8
Z9 8
U1 0
U2 3
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 MAR 19
PY 2009
VL 113
IS 11
BP 2516
EP 2523
DI 10.1021/jp808318x
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417XE
UT WOS:000264111000033
PM 19243123
ER
PT J
AU Hummer, DR
Kubicki, JD
Kent, PRC
Post, JE
Heaney, PJ
AF Hummer, Daniel R.
Kubicki, James D.
Kent, Paul R. C.
Post, Jeffrey E.
Heaney, Peter J.
TI Origin of Nanoscale Phase Stability Reversals in Titanium Oxide
Polymorphs
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID NANOCRYSTALLINE TIO2; POWDER DIFFRACTION; ANATASE-TIO2 NANOMATERIALS;
TEMPERATURE-DEPENDENCE; SYNCHROTRON-RADIATION; THERMAL-STABILITY;
GRAIN-GROWTH; TRANSFORMATION; KINETICS; RUTILE
AB We have monitored the hydrothermal crystallization of titania nanoparticles by in situ X-ray diffraction (XRD). Using the refined average structures from the XRD measurements, we calculated potential energy variations with particle size on periodic bulk structures using density functional theory (DFT). These variations cannot account for the enthalpy required to stabilize anatase relative to rutile. Thus, the hypothesis that the strain of the surface structure of nanoparticles accounts for the stabilization of anatase is not applicable to the growth of titania in water. DFT calculations on model nanoparticles do generate lower surface energies for anatase than for rutile that are large enough to explain the stability reversal in nanoparticles relative to the bulk phase. Rather than arising from two-dimensional surface structure alone, as previously thought, the total surface energies are critically dependent upon defects associated with edges and corners of nanocrystals at particle sizes <= 3 nm (i.e., during the nucleation process). As the particles grow, the bulk free energy becomes relatively more important, causing rutile to become stable at larger particle sizes. This study quantifies for the first time the critical role of edge and vertex energies in determining the relative phase stabilities of TiO2 nanoparticles.
C1 [Hummer, Daniel R.; Kubicki, James D.; Heaney, Peter J.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
[Kent, Paul R. C.] Oak Ridge Natl Lab, Comp Sci & Math Div, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Post, Jeffrey E.] Smithsonian Inst, Dept Mineral Sci, Washington, DC 20560 USA.
RP Hummer, DR (reprint author), Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
EM dhummer@geosc.psu.edu
RI Kent, Paul/A-6756-2008; Kubicki, James/I-1843-2012
OI Kent, Paul/0000-0001-5539-4017; Kubicki, James/0000-0002-9277-9044
NR 52
TC 41
Z9 41
U1 1
U2 34
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 MAR 19
PY 2009
VL 113
IS 11
BP 4240
EP 4245
DI 10.1021/jp811332w
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 417XH
UT WOS:000264111300003
ER
PT J
AU Wang, ZW
Guo, QX
AF Wang, Zhongwu
Guo, Qixun
TI Size-Dependent Structural Stability and Tuning Mechanism: A Case of Zinc
Sulfide
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID INDUCED PHASE-TRANSITION; HIGH-PRESSURE PHASE; CDSE NANOCRYSTALS;
SEMICONDUCTOR NANOCRYSTALS; FIXED-POINTS; ZNS; TRANSFORMATIONS;
NANOPARTICLES; EQUATIONS; NANOBELTS
AB Synchrotron X-ray diffraction and thermodynamic calculation combined with particle size dependent defect ratio, stress distribution, and surface energy have been used to tackle the structural stability and phase transformation of bulk and nano zincblende (ZnS). X-ray diffractions demonstrate that bulk zincblende-type ZnS transforms to a rocksalt phase at similar to 15.4 GPa associated with an in situ fracture. The transition pressure remains constant upon decreasing particle size to 15 rim. Below 15 nm, this phase transformation occurs at an elevated pressure; the particle does not break down and instead transforms to a smaller rocksalt grain with 18% volumetric shrinkage relative to zincblende. The two defined critical sizes of 3.4 and 15 nm represent the largest size for a particle that starts a defect extinction and homogeneous stress distribution, respectively, thus enabling interpretation of a combined effect of pressure and particle size. When the particle is larger than 15 nm, the hosted defect (or dislocation) acts to behave similar to that in bulk; the resultant stress concentration under compression is responsible for the deformation of zincblende and subsequent nucleation and fracture of rocksalt. Below 15 nm, a series of defect activities turns silent; alternatively, surface energy and multiparticle interaction begin directing the enhancement of structural stability. The surface energy of rocksalt is calculated as similar to 2.33 J/m(2), 0.57 J/m(2) greater than that of zincblende. The proposed mechanism enables not only a reconciliation of incompatible results but also a reasonable interpretation of the reversed Hall-Petch relation observed in materials at a critical size of 10-20 nm. This study provides important information for optimizing feasible routes for fabrication of multifunctional engineering materials with tailored properties.
C1 [Wang, Zhongwu] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA.
[Guo, Qixun] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Wang, ZW (reprint author), Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA.
EM zw42@cornell.edu
NR 78
TC 29
Z9 29
U1 0
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 MAR 19
PY 2009
VL 113
IS 11
BP 4286
EP 4295
DI 10.1021/jp808244a
PG 10
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 417XH
UT WOS:000264111300012
ER
PT J
AU Wang, RM
Dmitrieva, O
Farle, M
Dumpich, G
Acet, M
Mejia-Rosales, S
Perez-Tijerina, E
Yacaman, MJ
Kisielowski, C
AF Wang, Rongming
Dmitrieva, Olga
Farle, Michael
Dumpich, Guenter
Acet, Mehmet
Mejia-Rosales, Sergio
Perez-Tijerina, Eduardo
Yacaman, Miguel Jose
Kisielowski, Christian
TI FePt Icosahedra with Magnetic Cores and Catalytic Shells
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SMALL PARTICLES; RESOLUTION; RECONSTRUCTION; NANOPARTICLES; OXYGEN
AB Surprisingly oxidation resistant icosahedral FePt nanoparticles showing hard-magnetic properties have been fabricated by an inert-gas condensation method with in-flight annealing. High-resolution transmission electron microscopy (HRTEM) images with sub-Angstrom resolution of the nanoparticle have been obtained with focal series reconstruction, revealing noncrystalline nature of the nanoparticle. Digital dark-field method combined with structure reconstruction as well as HRTEM simulations reveal that these nanoparticles have icosahedral structure with shell periodicity. Localized lattice relaxations have been studied by extracting the position of individual atomic columns with a precision of about +/- 0.002 nm. The lattice spacings of (111) planes from the surface region to the center of the icosahedra are found to decrease exponentially with shell numbers. Computational studies and energy-filtered transmission electron microscopy analyses suggest that. a Pt-enriched surface layer is energetically favored and that site-specific vacancies are formed at the edges of facettes, which was experimentally observed. The presence of the Pt-enriched shell around an Fe/Pt core explains the environmental stability of the magnetic icosahedra and strongly reduces the exchange coupling between neighboring particles, thereby possibly providing the highest packing density for future magnetic storage media based on FePt nanoparticles.
C1 [Wang, Rongming] Beijing Univ Aeronaut & Astronaut, Dept Phys, Beijing 100191, Peoples R China.
[Wang, Rongming; Kisielowski, Christian] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Dmitrieva, Olga; Farle, Michael; Dumpich, Guenter; Acet, Mehmet] Univ Duisburg Essen, Fachbereich Phys, D-47048 Duisburg, Germany.
[Dmitrieva, Olga; Farle, Michael; Dumpich, Guenter; Acet, Mehmet] Univ Duisburg Essen, Ctr Nanointegrat CeNIDE, D-47048 Duisburg, Germany.
[Mejia-Rosales, Sergio; Perez-Tijerina, Eduardo] Univ Autonoma Nuevo Leon, Fac Ciencias Fis Matemat, San Nicolas De Los Garza 66450, Nuevo Leon, Mexico.
[Yacaman, Miguel Jose] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA.
RP Wang, RM (reprint author), Beijing Univ Aeronaut & Astronaut, Dept Phys, Beijing 100191, Peoples R China.
EM rmwang@buaa.edu.cn
RI Acet, Mehmet/F-4442-2012; Mejia, Sergio/I-3223-2012; jose yacaman,
miguel/B-5622-2009; Wang, Rongming/B-2163-2010;
OI Mejia, Sergio/0000-0003-0053-2632; Wang, Rongming/0000-0003-4075-6956;
Farle, Michael/0000-0002-1864-3261
FU National Natural Science Foundation of China [50671003]; New Century
Excellent Talents in University [NCET-06-0175]; Director, Office of
Science, Office of Basic Energy Science; U.S. Department of Energy
[AC02-05CH11231]; Deutsche Forschungsgemeinschaft [SFB 445]; Council for
Science and Technology of the State of Nuevo Leon, Mexico.
FX This work was supported by the National Natural Science Foundation of
China (No. 50671003), the Program for New Century Excellent Talents in
University (NCET-06-0175), the Director, Office of Science, Office of
Basic Energy Science, of the U.S. Department of Energy under contract
No. DE-AC02-05CH11231, the Berkeley Scholar Program, the Deutsche
Forschungsgemeinschaft SFB 445, and the Council for Science and
Technology of the State of Nuevo Leon, Mexico.
NR 24
TC 49
Z9 49
U1 1
U2 32
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 MAR 19
PY 2009
VL 113
IS 11
BP 4395
EP 4400
DI 10.1021/jp811280k
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 417XH
UT WOS:000264111300028
ER
PT J
AU Petrik, NG
Kimmel, GA
AF Petrik, Nikolay G.
Kimmel, Greg A.
TI Nonthermal Water Splitting on Rutile TiO2: Electron-Stimulated
Production of H-2 and O-2 in Amorphous Solid Water Films on TiO2(110)
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID MOLECULAR-HYDROGEN; ENERGY DEPOSITION; LIQUID WATER; D2O ICE;
DISSOCIATION; PT(111); SURFACE; PHOTOCATALYSIS; DISTRIBUTIONS;
ADSORPTION
AB The electron-stimulated reactions leading to H-2 and O-2 and the electron-stimulated desorption (ESD) of H2O from 0 - 60 ML films of amorphous solid water (ASW) adsorbed on TiO2(110) are investigated as a function of film thickness and isotopic composition at 100 K. For 100 eV incident electrons, both the H-2 and O-2 ESD yields have maxima when the ASW coverage is similar to 20 monolayers (ML), while the H2O ESD yield increases monotonically with water coverage. All the products reach a coverage-independent yield above 40-50 ML. Experiments using layered films of H2O and D2O demonstrate that the molecular hydrogen is produced in reactions that occur preferentially at or near both the ASW/TiO2 interface and the ASW/vacuum interface. However, electronic excitations or ionic defects created within the interior of the ASW films by the energetic electrons can subsequently migrate to the interfaces where they initiate reactions. Electron irradiation of ASW films results in the formation of bridge-bonded hydroxyls on TiO2(110). These hydroxyls do not contribute to the H-2 produced near the ASW/TiO2 interface. Instead, the results suggest that this H-2 is produced from a stable precursor, trapped on or near the substrate. The proposed mechanism for the H-2 production near the ASW/TiO2(110) interface is supported by a kinetic model that semiquantitatively reproduces the main features of the nonthermal reactions.
C1 [Petrik, Nikolay G.; Kimmel, Greg A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Kimmel, GA (reprint author), Pacific NW Natl Lab, Mail Stop K8-88,POB 999, Richland, WA 99352 USA.
EM gregory.kimmel@pnl.gov
RI Petrik, Nikolay/G-3267-2015;
OI Petrik, Nikolay/0000-0001-7129-0752; Kimmel, Greg/0000-0003-4447-2440
FU U.S. Department of Energy (DOE); Office of Basic Energy Sciences,
Chemical Sciences Division
FX This work was supported by the U.S. Department of Energy (DOE), Office
of Basic Energy Sciences, Chemical Sciences Division. The work was
performed at the W. R. Wiley Environmental Molecular Sciences
Laboratory, a national scientific User facility sponsored by DOE, Office
of Biological and Environmental Research and located at Pacific
Northwest National Laboratory, which is operated for DOE by Battelle
Memorial Institute under Contract No. DE-AC06-76RLO 1830.
NR 48
TC 22
Z9 22
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 MAR 19
PY 2009
VL 113
IS 11
BP 4451
EP 4460
DI 10.1021/jp805013b
PG 10
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 417XH
UT WOS:000264111300037
ER
PT J
AU Mei, DH
Xu, LJ
Henkelman, G
AF Mei, Donghai
Xu, Lijun
Henkelman, Graeme
TI Potential Energy Surface of Methanol Decomposition on Cu(110)
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; FINDING SADDLE-POINTS; AUGMENTED-WAVE METHOD;
PARTIAL OXIDATION; BASIS-SET; ADSORPTION; PT(111); DEHYDROGENATION;
1ST-PRINCIPLES; FORMATE
AB Combining the dimer saddle point searching method and periodic density functional theory calculations, the potential energy surface of methanol decomposition on Cu(110) has been mapped out. Each elementary step in the methanol decomposition reaction into CO and hydrogen occurs via one of three possible mechanisms: O-H, C-H, or C-O bond scission. Multiple reaction pathways for each bond scission have been identified in the present work. Reaction pathway calculations are started from an initial (reactant) state with methanol adsorbed in the most stable geometry on Cu(110). The saddle point and corresponding final state of each reaction or diffusion mechanism were determined without assuming the reaction mechanism. In this way, the reaction paths are determined without chemical intuition. The harmonic pre-exponential factor of each identified reaction is calculated from a normal-mode analysis of the stationary points. Then, using harmonic transition state theory, the rate constant of each identified reaction pathway in the entire reaction network is obtained. The most favorable decomposition route for methanol on Cu(110) is found as follows: CH(3)OH -> CH(3)O -> CH(2)O. The rate-limiting step in this decomposition route is the dehydrogenation of methoxy to formaldehyde. Our calculations are in agreement with previous experimental observations and theoretical results.
C1 [Mei, Donghai] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA.
[Xu, Lijun; Henkelman, Graeme] Univ Texas Austin, Dept Chem & Biochem, Austin, TX 78712 USA.
RP Mei, DH (reprint author), Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA.
EM donghai.mei@pnl.gov
RI Mei, Donghai/D-3251-2011; Henkelman, Graeme/A-9301-2008; Mei,
Donghai/A-2115-2012
OI Henkelman, Graeme/0000-0002-0336-7153; Mei, Donghai/0000-0002-0286-4182
FU Laboratory Directed Research and Development (LDRD) project [1774641];
Pacific Northwest National Laboratory (PNNL).; National Energy Research
Scientific Computing Center (NERSC).; NSF CAREER program [CHE-0645497];
Norman Hackerman Advanced Research Program; Welch Foundation [F-1601]
FX This work was supported by a Laboratory Directed Research and
Development (LDRD) project (1774641) of the Pacific Northwest National
Laboratory (PNNL). The computations were performed using the Molecular
Science Computing Facility in the William R. Wiley Environmental
Molecular Sciences Laboratory (EMSL), which is a U.S. Department of
Energy national scientific user facility located at PNNL in Richland,
WA. Computing time was made available through a Computational Grand
Challenge "Computational Catalysis", and user facility allocation
EMSL-25428. Part of the computing time was also granted by the National
Energy Research Scientific Computing Center (NERSC). G.H. gratefully
acknowledges support from the NSF CAREER program (CHE-0645497), the
Norman Hackerman Advanced Research Program, and the Welch Foundation
(F-1601).
NR 31
TC 61
Z9 61
U1 7
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 MAR 19
PY 2009
VL 113
IS 11
BP 4522
EP 4537
DI 10.1021/jp808211q
PG 16
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 417XH
UT WOS:000264111300046
ER
PT J
AU Lee, CF
Leigh, DA
Pritchard, RG
Schultz, D
Teat, SJ
Timco, GA
Winpenny, REP
AF Lee, Chin-Fa
Leigh, David A.
Pritchard, Robin G.
Schultz, David
Teat, Simon J.
Timco, Grigore A.
Winpenny, Richard E. P.
TI Hybrid organic-inorganic rotaxanes and molecular shuttles
SO NATURE
LA English
DT Article
ID WHEELS; MACHINES; RINGS
AB The tetravalency of carbon and its ability to form covalent bonds with itself and other elements enables large organic molecules with complex structures, functions and dynamics to be constructed. The varied electronic configurations and bonding patterns of inorganic elements, on the other hand, can impart diverse electronic, magnetic, catalytic and other useful properties to molecular-level structures. Some hybrid organic-inorganic materials that combine features of both chemistries have been developed, most notably metal-organic frameworks(1), dense and extended organic inorganic frameworks(2) and coordination polymers(3). Metal ions have also been incorporated into molecules that contain interlocked subunits, such as rotaxanes(4-7) and catenanes(6,8), and structures in which many inorganic clusters encircle polymer chains have been described(9). Here we report the synthesis of a series of discrete rotaxane molecules in which inorganic and organic structural units are linked together mechanically at the molecular level. Structural units (dialkyammonium groups) in dumb-bell-shaped organic molecules template the assembly of essentially inorganic 'rings' about 'axles' to form rotaxanes consisting of various numbers of rings and axles. One of the rotaxanes behaves as a 'molecular shuttle'(10): the ring moves between two binding sites on the axle in a large-amplitude motion typical of some synthetic molecular machine systems(11-15). The architecture of the rotaxanes ensures that the electronic, magnetic and paramagnetic characteristics of the inorganic rings-properties that could make them suitable as qubits for quantum computers(16-18)-can influence, and potentially be influenced by, the organic portion of the molecule.
C1 [Lee, Chin-Fa; Leigh, David A.; Schultz, David] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland.
[Pritchard, Robin G.; Timco, Grigore A.; Winpenny, Richard E. P.] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England.
[Teat, Simon J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Leigh, DA (reprint author), Univ Edinburgh, Sch Chem, Kings Bldg,W Mains Rd, Edinburgh EH9 3JJ, Midlothian, Scotland.
EM david.leigh@ed.ac.uk; richard.winpenny@manchester.ac.uk
RI Leigh, David/K-5965-2015
OI Leigh, David/0000-0002-1202-4507
FU Director, Office of Science; Office of Basic Energy Sciences; the US
Department of Energy [DE-AC02-05CH11231]; Swiss National Science
Foundation; EPSRC Senior Research Fellow; Royal Society Wolfson Research
Merit Award
FX We thank J. Bella for the exchange spectroscopy NMR experiments, W. Sun
for assistance with the preparation of thread 1c and the Engineering and
Physical Sciences Research Council (EPSRC) National Mass Spectrometry
Service Centre (Swansea, UK) for high-resolution mass spectrometry. This
research was funded by the European Commission (through the NoE
'MAGMANet') and EPSRC. The Advanced Light Source 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. D. S. is a
Swiss National Science Foundation postdoctoral fellow. D. A. L. is an
EPSRC Senior Research Fellow and holds a Royal Society Wolfson Research
Merit Award.
NR 29
TC 166
Z9 167
U1 7
U2 116
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD MAR 19
PY 2009
VL 458
IS 7236
BP 314
EP 318
DI 10.1038/nature07847
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 420JH
UT WOS:000264285600036
PM 19295605
ER
PT J
AU Kooijman, EE
Vaknin, D
Bu, W
Joshi, L
Kang, SW
Gericke, A
Mann, EK
Kumar, S
AF Kooijman, Edgar E.
Vaknin, David
Bu, Wei
Joshi, Leela
Kang, Shin-Woong
Gericke, Arne
Mann, Elizabeth K.
Kumar, Satyendra
TI Structure of Ceramide-1-Phosphate at the Air-Water Solution Interface in
the Absence and Presence of Ca2+
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID CYTOSOLIC PHOSPHOLIPASE A(2); CERAMIDE 1-PHOSPHATE; PHOSPHATIDIC-ACID;
PHASE-TRANSITIONS; CHARGED INTERFACES; MEMBRANE-STRUCTURE; LIPID
MONOLAYERS; BREWSTER-ANGLE; SPHINGOMYELIN; DOMAINS
AB Ceramide-1-phosphate, the phosphorylated form of ceramide, gained attention recently due to its diverse intracellular roles, in particular in inflammation mediated-by cPLA(2 alpha). However, surprisingly little is known about the physical chemical properties of this lipid and its potential impact on physiological function. For example, the presence of Ca2+ is indispensable for the interaction of Cer-1-P with the C2 domain of cPLA(2 alpha). We report on the structure and morphology of Cer-1-P in monomolecular layers at the air/water solution interface in the absence and presence of Ca2+ using diverse biophysical techniques, including synchrotron x-ray reflectivity and grazing angle diffraction, to gain insight into the role and function of Cer-1-P in biomembranes. We show that relatively small changes in pH and the presence of monovalent cations dramatically affect the behavior of Cer-1-P. On pure water Cer-1-P forms a solid monolayer despite the negative charge of the phosphomonoester headgroup. In contrast, pH 7.2 buffer yields a considerably less solid-like monolayer, indicating that charge-charge repulsion becomes important at higher pH. Calcium was found to bind strongly to the headgroup of Cer-1-P even in the presence of a 100-fold larger Na+ concentration. Analysis of the x-ray reflectivity data allowed us to estimate how much Ca2+ is bound to the headgroup, similar to 0.5 Ca2+ and similar to 1.0 Ca2+ ions per Cer-1-P molecule for the water and buffer subphase respectively. These results can be qualitatively understood based on the molecular structure of Cer-1-P and the electrostatic/hydrogen-bond interactions of its phosphomonoester headgroup. Biological implications of our results are also discussed.
C1 [Kooijman, Edgar E.] Kent State Univ, Dept Biol Sci, Kent, OH 44242 USA.
[Vaknin, David; Bu, Wei] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Vaknin, David; Bu, Wei] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Joshi, Leela; Kang, Shin-Woong; Mann, Elizabeth K.; Kumar, Satyendra] Kent State Univ, Dept Phys, Kent, OH 44242 USA.
[Gericke, Arne] Kent State Univ, Dept Chem, Kent, OH 44242 USA.
[Kumar, Satyendra] Natl Sci Fdn, Div Mat Res, Arlington, VA 22203 USA.
RP Kooijman, EE (reprint author), Kent State Univ, Dept Biol Sci, Kent, OH 44242 USA.
EM e.e.kooijman@gmail.com
RI Kang, Shin-Woong/K-1827-2015; Vaknin, David/B-3302-2009; Bu,
Wei/Q-1390-2016
OI Kang, Shin-Woong/0000-0002-1789-9214; Vaknin, David/0000-0002-0899-9248;
Bu, Wei/0000-0002-9996-3733
FU U.S. National Science Foundation [DMR-0637221, CHE-0724082]; Ohio Board
of Regents; U.S. Department of Energy, Basic Energy Sciences, Office of
Science [W-31-109-Eng-38, DE-AC02-07CH11358]
FX This work Was Supported, in part, by the U.S. National Science
Foundation grants DMR-0637221 and CHE-0724082. and a Research Challenge
award from the Ohio Board of Regents. Use of the Advanced Photon Source
(APS) was supported by the U.S. Department of Energy, Basic Energy
Sciences, Office of Science (contract No. W-31-109-Eng-38). The Midwest
Universities Collaborative Access Team sector at the APS is supported by
the U.S. Department of Energy, Basic Energy Sciences, Office of Science.
The work at Allies Laboratory was supported by the U.S. Department of
Energy, Basic Energy Sciences, Office of Science (contract No.
DE-AC02-07CH11358).
NR 55
TC 12
Z9 12
U1 4
U2 12
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD MAR 18
PY 2009
VL 96
IS 6
BP 2204
EP 2215
DI 10.1016/j.bpj.2008.11.062
PG 12
WC Biophysics
SC Biophysics
GA 450BT
UT WOS:000266376700017
PM 19289047
ER
PT J
AU Volkow, ND
Fowler, JS
Logan, J
Alexoff, D
Zhu, W
Telang, F
Wang, GJ
Jayne, M
Hooker, JM
Wong, C
Hubbard, B
Carter, P
Warner, D
King, P
Shea, C
Xu, YW
Muench, L
Apelskog-Torres, K
AF Volkow, Nora D.
Fowler, Joanna S.
Logan, Jean
Alexoff, David
Zhu, Wei
Telang, Frank
Wang, Gene-Jack
Jayne, Millard
Hooker, Jacob M.
Wong, Christopher
Hubbard, Barbara
Carter, Pauline
Warner, Donald
King, Payton
Shea, Colleen
Xu, Youwen
Muench, Lisa
Apelskog-Torres, Karen
TI Effects of Modafinil on Dopamine and Dopamine Transporters in the Male
Human Brain Clinical Implications
SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
LA English
DT Article
ID INDUCED WAKEFULNESS; DOUBLE-BLIND; ORAL METHYLPHENIDATE; C-11
RACLOPRIDE; BLOOD-FLOW; BINDING; DRUG; PET; AMPHETAMINE; INCREASES
AB Context Modafinil, a wake-promoting drug used to treat narcolepsy, is increasingly being used as a cognitive enhancer. Although initially launched as distinct from stimulants that increase extracellular dopamine by targeting dopamine transporters, recent preclinical studies suggest otherwise.
Objective To measure the acute effects of modafinil at doses used therapeutically (200 mg and 400 mg given orally) on extracellular dopamine and on dopamine transporters in the male human brain.
Design, Setting, and Participants Positron emission tomography with [(11)C] raclopride (D(2)/D(3) radioligand sensitive to changes in endogenous dopamine) and [(11)C] cocaine (dopamine transporter radioligand) was used to measure the effects of modafinil on extracellular dopamine and on dopamine transporters in 10 healthy male participants. The study took place over an 8-month period (2007-2008) at Brookhaven National Laboratory.
Main Outcome Measures Primary outcomes were changes in dopamine D(2)/D(3) receptor and dopamine transporter availability (measured by changes in binding potential) after modafinil when compared with after placebo.
Results Modafinil decreased mean (SD) [(11)C] raclopride binding potential in caudate (6.1% [6.5%]; 95% confidence interval [CI], 1.5% to 10.8%; P = .02), putamen (6.7% [4.9%]; 95% CI, 3.2% to 10.3%; P = .002), and nucleus accumbens (19.4% [20%]; 95% CI, 5% to 35%; P = .02), reflecting increases in extracellular dopamine. Modafinil also decreased [(11)C] cocaine binding potential in caudate (53.8% [13.8%]; 95% CI, 43.9% to 63.6%; P < .001), putamen (47.2% [11.4%]; 95% CI, 39.1% to 55.4%; P < .001), and nucleus accumbens (39.3% [10%]; 95% CI, 30% to 49%; P = .001), reflecting occupancy of dopamine transporters.
Conclusions In this pilot study, modafinil blocked dopamine transporters and increased dopamine in the human brain ( including the nucleus accumbens). Because drugs that increase dopamine in the nucleus accumbens have the potential for abuse, and considering the increasing use of modafinil, these results highlight the need for heightened awareness for potential abuse of and dependence on modafinil in vulnerable populations.
C1 [Volkow, Nora D.] Natl Inst Drug Abuse, Bethesda, MD 20892 USA.
[Volkow, Nora D.; Telang, Frank; Jayne, Millard; Muench, Lisa] NIAAA, Bethesda, MD USA.
[Fowler, Joanna S.; Logan, Jean; Alexoff, David; Wang, Gene-Jack; Hooker, Jacob M.; Wong, Christopher; Hubbard, Barbara; Carter, Pauline; Warner, Donald; King, Payton; Shea, Colleen; Xu, Youwen; Apelskog-Torres, Karen] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Fowler, Joanna S.; Wang, Gene-Jack] Mt Sinai Sch Med, New York, NY USA.
[Fowler, Joanna S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY USA.
[Zhu, Wei] SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY USA.
RP Volkow, ND (reprint author), Natl Inst Drug Abuse, 6001 Execut Blvd,Room 5274,MSC 9581, Bethesda, MD 20892 USA.
EM nvolkow@nida.nih.gov
OI Hooker, Jacob/0000-0002-9394-7708
FU Brookhaven National Laboratory [DE-AC02-98CH10886]; Office of Biological
and Environmental Research; National Institutes of Health [K05DA020001];
National Institute on Alcohol Abuse; Alcoholism Intramural research
program [F32EB997320]; National Institute of Biomedical Imaging and
Bioengineering; General Research Clinical Centers [MO1RR10710]
FX This research was carried out at Brookhaven National Laboratory under
contract DE-AC02-98CH10886 with the US Department of Energy with
infrastructure support from its Office of Biological and Environmental
Research. Support was also provided by grant K05DA020001 (J.S.F.) from
the National Institutes of Health, the National Institute on Alcohol
Abuse and Alcoholism Intramural research program, grant F32EB997320
(J.M.H.) from the National Institute of Biomedical Imaging and
Bioengineering, and grant MO1RR10710 from the General Research Clinical
Centers. A Goldhaber distinguished fellowship provided support for Dr
Hooker.
NR 38
TC 248
Z9 249
U1 8
U2 25
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 MAR 18
PY 2009
VL 301
IS 11
BP 1148
EP 1154
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA 419UC
UT WOS:000264244200020
PM 19293415
ER
PT J
AU McFarlane, SA
Kassianov, EI
Barnard, J
Flynn, C
Ackerman, TP
AF McFarlane, S. A.
Kassianov, E. I.
Barnard, J.
Flynn, C.
Ackerman, T. P.
TI Surface shortwave aerosol radiative forcing during the Atmospheric
Radiation Measurement Mobile Facility deployment in Niamey, Niger
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SAHARAN DUST; MINERAL AEROSOLS; FLUX DIVERGENCE; C-130 AIRCRAFT; OPTICAL
DEPTH; CLOUD; MODEL; IRRADIANCE; SCATTERING; ATLANTIC
AB The Atmospheric Radiation Measurement (ARM) Program's Mobile Facility (AMF) was deployed to Niamey, Niger, during 2006. Niamey, which is located in sub-Saharan Africa, is affected by both dust and biomass burning emissions. Column aerosol optical properties were derived from multifilter rotating shadowband radiometer, measurements and the vertical distribution of aerosol extinction was derived from a micropulse lidar during the two observed dry seasons (January-April and October December). Mean aerosol optical depth (AOD) and single scattering albedo (SSA) at 500 nm during January-April were 0.53 +/- 0.4 and 0.94 +/- 0.05, while during October December mean AOD and SSA were 0.33 +/- 0.25 and 0.99 +/- 0.01. Aerosol extinction profiles peaked near 500 m during the January-April period and near 100 m during the October-December period. Broadband shortwave surface fluxes and heating rate profiles were calculated using retrieved aerosol properties. Comparisons for noncloudy periods indicated that the remote sensing retrievals provided a reasonable estimation of the aerosol optical properties, with mean differences between calculated and observed fluxes of less than 5 W m(-2) and RMS differences less than 25 W m(-2). Sensitivity tests showed that the observed fluxes could be matched with variations of <10% in the inputs to the radiative transfer model. The calculated 24-h averaged SW instantaneous surface aerosol radiative forcing (ARF) was -21.1 +/- 14.3 W m(-2) and was estimated to account for 80% of the total radiative forcing at the surface. The ARF was larger during January April (-28.5 +/- 13.5 W m(-2)) than October-December (-11.9 +/- 8.9 W m(-2)).
C1 [McFarlane, S. A.; Kassianov, E. I.; Barnard, J.; Flynn, C.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA.
[Ackerman, T. P.] Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA.
[Ackerman, T. P.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
RP McFarlane, SA (reprint author), Pacific NW Natl Lab, Atmospher Sci & Global Change Div, POB 999,MSIN K9-24, Richland, WA 99352 USA.
EM sally.mcfarlane@pnl.gov
RI McFarlane, Sally/C-3944-2008
FU Atmospheric Radiation Measurement (ARM) Program, Office of Biological
and Environment Research, U.S. Department of Energy; U.S. Department of
Energy, Office of Science, [DE-AC06-76RL01830]
FX The AMF was deployed to Niamey as part of the RADAGAST project through
funding from the Atmospheric Radiation Measurement (ARM) Program, Office
of Biological and Environment Research, U.S. Department of Energy. We
thank Mark Miller, the AMF lead scientist, and everyone else whose hard
work contributed to the successful AMF deployment. We also thank Dave
Turner for providing the MWR retrievals and Jim Mather for the merged
sounding profiles used in this study. Two anonymous reviewers provided
insightful comments which improved the clarity and focus of the
manuscript. Funding for this project was provided by the U.S. Department
of Energy, Office of Science, as part of the ARM program under contract
DE-AC06-76RL01830 to PNNL. PNNL is operated by Battelle for the U.S.
Department of Energy. The RADAGAST proposal, which led to the Niamey
deployment of the AMF, was largely the work of Anthony Slingo. His
untimely death in 2008 has robbed us of a colleague, research
collaborator, and dear friend. Tony was a person of great enthusiasm,
insight, and wit in everything that he did, and his scientific acumen
was an important component of the deployment choices and the aircraft
studies during RADAGAST. The articles in this special issue, and further
articles to come, are a further tribute to Tony's insights that led to
the RADAGAST deployment. We will greatly miss Tony's excitement and
enthusiasm in the scientific process, his willingness to share his
knowledge and understanding with all of us, and the deep friendship that
we had with him.
NR 63
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U1 2
U2 9
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 MAR 18
PY 2009
VL 114
AR D00E06
DI 10.1029/2008JD010491
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 422PE
UT WOS:000264439400001
ER
PT J
AU Hao, SQ
Widom, M
Sholl, DS
AF Hao, Shiqiang
Widom, M.
Sholl, David S.
TI Probing hydrogen interactions with amorphous metals using
first-principles calculations
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; ALLOY MEMBRANES; PHASE-SEPARATION; PD;
SOLUBILITY; DEUTERIUM; STORAGE; DIFFUSIVITY; PALLADIUM; SYSTEM
AB Amorphous metals are interesting candidates for use as H-2 purification membranes and occur in some applications of H-2 storage. We introduce a general strategy combining density functional theory and statistical mechanics for quantitatively predicting the properties of interstitial H in amorphous metals. We systematically investigate H solubility in amorphous Fe3B, comparing our results with ones for a crystalline material with the same composition. H-H interactions in the amorphous material play a crucial role in determining the net solubility. H solubility in the amorphous and crystalline materials differs by orders of magnitude under conditions relevant for practical H-2 purification membranes. Our results give atomic-level insight into the properties of H in amorphous metals that has not been previously available.
C1 [Sholl, David S.] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA.
[Hao, Shiqiang] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA.
[Hao, Shiqiang] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Widom, M.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
RP Sholl, DS (reprint author), Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA.
EM david.sholl@chbe.gatech.edu
RI Widom, Michael/P-2531-2014
OI Widom, Michael/0000-0001-5972-5696
FU US DOE Hydrogen Fuels; ONR [N00014-06-1-0492]
FX SH and DSS were supported by funds from the US DOE Hydrogen Fuels
Initiative. MW was supported by the DARPA Structural Amorphous Metals
Program under ONR Grant No. N00014-06-1-0492.
NR 49
TC 15
Z9 15
U1 1
U2 4
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 MAR 18
PY 2009
VL 21
IS 11
AR 115402
DI 10.1088/0953-8984/21/11/115402
PG 7
WC Physics, Condensed Matter
SC Physics
GA 411UQ
UT WOS:000263677300014
PM 21693917
ER
PT J
AU Kittiratanawasin, L
Smith, R
Uberuaga, BP
Sickafus, KE
AF Kittiratanawasin, L.
Smith, Roger
Uberuaga, B. P.
Sickafus, K. E.
TI Radiation damage and evolution of radiation-induced defects in Er2O3
bixbyite
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID DISORDER PHASE-TRANSFORMATION; EARTH SESQUIOXIDE DY2O3; ION IRRADIATION;
SIMULATIONS; DYNAMICS
AB Collision cascade simulations were performed in the Er2O3 sesquioxide. The resulting point defects observed at the end of the ballistic phase of the collision cascade were analysed and their evaluation over longer time examined using temperature accelerated dynamics and the kinetic Monte Carlo method. The result shows that the large mass difference between the Er and O atoms results in cascades with different structures where an initially energetic O atom can channel over long distances, depositing energy in smaller sub-regions, whereas denser cascades with vacancy-rich cores develop from Er primary knock-on atoms. The most mobile defect that can form is the isolated O vacancy but when this occurs as part of a larger defect cluster it becomes trapped. The energy barriers for all other defects to move are very high.
C1 [Kittiratanawasin, L.; Smith, Roger] Univ Loughborough, Dept Math Sci, Loughborough LE11 3TU, Leics, England.
[Uberuaga, B. P.; Sickafus, K. E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Kittiratanawasin, L (reprint author), Univ Loughborough, Dept Math Sci, Loughborough LE11 3TU, Leics, England.
RI Smith, Roger/C-2550-2013
FU Royal Thai Government; United States Department of Energy; National
Nuclear Security Administration of the US DOE [DE-AC5206NA25396]
FX LK would like to acknowledge a Higher Education Strategic Scholarship
for Frontier Research from the Royal Thai Government. The work was also
supported by United States Department of Energy, Office of Basic Energy
Sciences. Los Alamos National Laboratory is operated by Los Alamos
National Security, LLC, for the National Nuclear Security Administration
of the US DOE under contract DE-AC5206NA25396.
NR 21
TC 11
Z9 11
U1 0
U2 12
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 MAR 18
PY 2009
VL 21
IS 11
AR 115403
DI 10.1088/0953-8984/21/11/115403
PG 11
WC Physics, Condensed Matter
SC Physics
GA 411UQ
UT WOS:000263677300015
PM 21693918
ER
PT J
AU Vaknin, D
Bu, W
Sung, J
Jeon, Y
Kim, D
AF Vaknin, David
Bu, Wei
Sung, Jaeho
Jeon, Yoonnam
Kim, Doseok
TI Thermally excited capillary waves at vapor/liquid interfaces of
water-alcohol mixtures
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID X-RAY REFLECTIVITY; LIQUID-VAPOR INTERFACE; FLUID INTERFACES; SURFACES;
FLUCTUATIONS; SCATTERING; THICKNESS
AB The density profiles of liquid/vapor interfaces of water-alcohol (methanol, ethanol and propanol) mixtures were studied by surface-sensitive synchrotron x-ray scattering techniques. X-ray reflectivity and diffuse scattering measurements, from the pure and mixed liquids, were analyzed in the framework of capillary wave theory to address the characteristic length scales of the intrinsic roughness and the shortest capillary wavelength (alternatively, the upper wavevector cutoff in capillary wave theory). Our results establish that the intrinsic roughness is dominated by average interatomic distances. The extracted effective upper wavevector cutoff indicates capillary wave theory breaks down at distances of the order of bulk correlation lengths.
C1 [Vaknin, David; Bu, Wei] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Vaknin, David; Bu, Wei] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Sung, Jaeho; Jeon, Yoonnam; Kim, Doseok] Sogang Univ, Dept Phys, Seoul 121742, South Korea.
[Sung, Jaeho; Jeon, Yoonnam; Kim, Doseok] Sogang Univ, Interdisciplinary Program Integrated Biotechnol, Seoul 121742, South Korea.
RP Vaknin, D (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RI Kim, Doseok/J-8776-2013; Vaknin, David/B-3302-2009; Bu, Wei/Q-1390-2016
OI Vaknin, David/0000-0002-0899-9248; Bu, Wei/0000-0002-9996-3733
FU US DOE, Basic Energy Sciences [DE-AC0207CH11358]; Quantum Photonic
Science Research Center (SRC) [W-31-109-Eng-38]; World-Class University
program
FX We thank D S Robinson for technical support at the 6-ID beamline and A
Travesset, BMOcko andMFukuto for helpful discussions. The MUCAT sector
at the APS is supported by the US DOE, Basic Energy Sciences, Office of
Science, through Ames Laboratory under contract under contract no.
DE-AC0207CH11358. Use of the Advanced Photon Source is supported by the
US DOE, Basic Energy Sciences, Office of Science, under contract no.
W-31-109-Eng-38. DK acknowledges support from the Quantum Photonic
Science Research Center (SRC) at Hanyang University and the World-Class
University program.
NR 31
TC 7
Z9 7
U1 0
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD MAR 18
PY 2009
VL 21
IS 11
AR 115105
DI 10.1088/0953-8984/21/11/115105
PG 5
WC Physics, Condensed Matter
SC Physics
GA 411UQ
UT WOS:000263677300007
PM 21693910
ER
PT J
AU Lee, DC
Pietryga, JM
Robel, I
Werder, DJ
Schaller, RD
Klimov, VI
AF Lee, Doh C.
Pietryga, Jeffrey M.
Robel, Istvan
Werder, Donald J.
Schaller, Richard D.
Klimov, Victor I.
TI Colloidal Synthesis of Infrared-Emitting Germanium Nanocrystals
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID OPTICAL-PROPERTIES; QUANTUM DOTS; GE; SILICON; SOLVENTS
AB In this study, we synthesized Ge nanocrystals and studied the effects of variables such as solvents, reducing agents, reaction temperature, and capping ligands. The resulting nanocrystals showed infrared photoluminescence with quantum yields as high as similar to 8% and enhanced resistance to oxidation. Size analysis of the samples by transmission electron microscopy revealed that the size dependence of the emission is consistent with the effects of quantum confinement.
C1 [Lee, Doh C.; Pietryga, Jeffrey M.; Robel, Istvan; Werder, Donald J.; Schaller, Richard D.; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, C-PCS,MS-J567, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
RI Robel, Istvan/D-4124-2011; Lee, Doh Chang/C-1835-2011;
OI Robel, Istvan/0000-0002-9738-7728; Klimov, Victor/0000-0003-1158-3179
FU Chemical Science, Biosciences and Geosciences Division of the Office of
Basic Energy Sciences, Office of Science, U.S. DOE
FX This work was supported by the Chemical Science, Biosciences and
Geosciences Division of the Office of Basic Energy Sciences, Office of
Science, U.S. DOE, and by Los Alamos Laboratory Directed Research and
Development funds. D.C.L. is a Los Alamos National Laboratory Director's
Fellow. We thank Darrick J. Williams for performing X-ray diffraction.
NR 25
TC 85
Z9 86
U1 4
U2 45
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 MAR 18
PY 2009
VL 131
IS 10
BP 3436
EP +
DI 10.1021/ja809218s
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427QA
UT WOS:000264792600014
PM 19236047
ER
PT J
AU Vivero-Escoto, JL
Slowing, II
Wu, CW
Lin, VSY
AF Vivero-Escoto, Juan L.
Slowing, Igor I.
Wu, Chian-Wen
Lin, Victor S. -Y.
TI Photoinduced Intracellular Controlled Release Drug Delivery in Human
Cells by Gold-Capped Mesoporous Silica Nanosphere
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID RESPONSIVE CONTROLLED-RELEASE; MESOSTRUCTURED SILICA; GUEST MOLECULES;
NANOPARTICLES; NANOVALVES; NANOCONTAINERS; SYSTEM; DRIVEN; DNA
AB A gold nanoparticle (AuNP)-capped mesoporous silica nanosphere (MSN)-based intracellular drug delivery system (PR-AuNPs-MSN) for the photoinduced controlled release of an anticancer drug, paclitaxel, inside of human fibroblast and liver cells was synthesized and characterized. We found that the mesopores of MSN could be efficiently capped by the photoresponsive AuNPs without leaking the toxic drug, paclitaxel, inside of live human cells. This "zero premature release" characteristic is of importance for delivery of toxic drugs in chemotherapy. Furthermore, we demonstrated that the cargo-release property of this PR-AuNPs-MSN system could be easily controlled by low-power photoirradiation under biocompatible and physiological conditions. We envision that our results would play a significant role in designing new generations of carrier materials for intracellular delivery of a variety of hydrophobic toxic drugs.
C1 [Lin, Victor S. -Y.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
Iowa State Univ, US DOE Ames Lab, Ames, IA 50011 USA.
RP Lin, VSY (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
EM vsylin@iastate.edu
RI Wu, Kevin C.-W. /F-8281-2012; Vivero-Escoto, Juan/I-8015-2014;
OI Slowing, Igor/0000-0002-9319-8639
FU U.S. National Science Foundation [CHE-0809521]
FX This work was supported by the U.S. National Science Foundation
(CHE-0809521).
NR 23
TC 390
Z9 396
U1 24
U2 282
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 MAR 18
PY 2009
VL 131
IS 10
BP 3462
EP +
DI 10.1021/ja900025f
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427QA
UT WOS:000264792600027
PM 19275256
ER
PT J
AU Smith, HL
Howland, MC
Szmodis, AW
Li, QJ
Daemen, LL
Parikh, AN
Majewski, J
AF Smith, Hillary L.
Howland, Michael C.
Szmodis, Alan W.
Li, Qijuan
Daemen, Luke L.
Parikh, Atul N.
Majewski, Jaroslaw
TI Early Stages of Oxidative Stress-Induced Membrane Permeabilization: A
Neutron Reflectometry Study
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID SUPPORTED PHOSPHOLIPID-BILAYERS; LIPID VESICLES; ATHEROSCLEROSIS;
REFLECTIVITY; DAMAGE; FLUID; FILMS; RAY
AB Neutron reflectometry was used to probe in situ the structure of supported lipid bilayers at the solid-liquid interface during the early stages of UV-induced oxidative degradation. Single-component supported lipid bilayers composed of gel phase, dipalmitoyl-sn-glycero-3-phosphocholine (DPPC), and fluid phase, 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC), phospholipids were exposed to low-dose oxidative stress generated by UV light and their structures were examined by neutron reflectometry. An interrupted illumination mode, involving exposures in 15 min increments with 2 In intervals between subsequent exposures, and a continuous mode involving a single 60 (or 90) min exposure period were employed. In both cases, pronounced differences in the structure of the lipid bilayer. after exposure were observed. Interrupted exposure led to a substantial decrease in membrane coverage but preserved its total thickness at reduced scattering length densities. These results indicate that the initial phase during UV-induced membrane degradation involves the formation of hydrophilic channels within the membrane. This is consistent with the loss of some lipid molecules we observe and attendant reorganization of residual lipids forming hemimicellar edges of the hydrophilic channels. In contrast, continuous illumination produced a graded interface of continuously varied scattering length density (and hence hydrocarbon density) extending 100-150 angstrom into the liquid phase. Exposure of a DPPC bilayer to UV light in the presence of a reservoir of unfused vesicles showed low net membrane disintegration during oxidative stress, presumably because of surface back-filling from the bulk reservoir. Chemical evidence for membrane degradation was obtained by mass spectrometry and Fourier transform infrared spectroscopy. Further evidence for the formation of hydrophilic channels was furnished by fluorescence microscopy and imaging ellipsometry data.
C1 [Smith, Hillary L.; Daemen, Luke L.; Majewski, Jaroslaw] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA.
[Howland, Michael C.] Univ Calif Davis, Chem Engn & Mat Sci Grad Grp, Davis, CA 95616 USA.
[Szmodis, Alan W.] Univ Calif Davis, Biophys Grad Grp, Davis, CA 95616 USA.
[Li, Qijuan; Parikh, Atul N.] Univ Calif Davis, Appl Sci Grad Grp, Davis, CA 95616 USA.
RP Majewski, J (reprint author), Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA.
EM jarek@lanl.gov
RI Lujan Center, LANL/G-4896-2012; PARIKH, ATUL/D-2243-2014
OI PARIKH, ATUL/0000-0002-5927-4968
FU DOE [W7405-ENG-36]; BES, Department of Energy [DE-FG02-04ER46173];
Lawrence Livermore National Laboratory; NIGMS-NIH [T32-GM08799]
FX This work was supported by Los Alamos National Laboratory under DOE
Contract W7405-ENG-36, DOE Office of Basic Energy Science. Support for
this work was provided by a grant from BES, Department of Energy under
Award DE-FG02-04ER46173. A.W.S. is supported by Student Fellowships
(UEPP and SEGRF) from Lawrence Livermore National Laboratory, and M.C.H.
is supported by Grant T32-GM08799 from NIGMS-NIH. We thank Timothy
Sanchez and Srinivas Iyer for assistance with mass spectroscopy
measurements.
NR 28
TC 36
Z9 36
U1 1
U2 27
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 MAR 18
PY 2009
VL 131
IS 10
BP 3631
EP 3638
DI 10.1021/ja807680m
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427QA
UT WOS:000264792600054
PM 19275260
ER
PT J
AU Yuhas, BD
Yang, PD
AF Yuhas, Benjamin D.
Yang, Peidong
TI Nanowire-Based All-Oxide Solar Cells
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID FILM DEPOSITION; CU2O
AB We present an all-oxide solar cell fabricated from vertically oriented zinc oxide nanowires and cuprous oxide nanoparticles. Our solar cell consists of vertically oriented n-type zinc oxide nanowires, surrounded by a film constructed from p-type cuprous oxide nanoparticles. Our solution-based synthesis of inexpensive and environmentally benign oxide materials in a solar cell would allow for the facile production of large-scale photovoltaic devices. We found that the solar cell performance is enhanced with the addition of an intermediate oxide insulating layer between the nanowires and the nanoparticles. This observation of the important dependence of the shunt resistance on the photovoltaic performance is widely applicable to any nanowire solar cell constructed with the nanowire array in direct contact with one electrode.
C1 [Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Yang, PD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM p_yang@berkeley.edu
FU U.S. Department of Energy, Office of Basic Sciences
FX This work was supported by the U.S. Department of Energy, Office of
Basic Sciences. We thank Prof. A. P. Alivisatos for use of the solar
simulator and the X-ray diffractometer. We thank the National Center for
Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley,
for the use of their facilities.
NR 24
TC 231
Z9 242
U1 18
U2 166
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 MAR 18
PY 2009
VL 131
IS 10
BP 3756
EP 3761
DI 10.1021/ja8095575
PG 6
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427QA
UT WOS:000264792600068
PM 19275263
ER
PT J
AU Bettge, M
MacLaren, S
Burdin, S
Wen, JG
Abraham, D
Petrov, I
Sammann, E
AF Bettge, Martin
MacLaren, Scott
Burdin, Steve
Wen, Jian-Guo
Abraham, Daniel
Petrov, Ivan
Sammann, Ernie
TI Low-temperature vapour-liquid-solid (VLS) growth of vertically aligned
silicon oxide nanowires using concurrent ion bombardment
SO NANOTECHNOLOGY
LA English
DT Article
ID MOLECULAR-BEAM EPITAXY; LASER IRRADIATION; CATALYST; ARRAYS;
NANOSTRUCTURES; ANODES; GOLD
AB Vertically aligned silicon oxide nanowires can be synthesized over a large area by a low-temperature, ion-enhanced, reactive vapour-liquid-solid (VLS) method. Synthesis of these randomly ordered arrays begins with a thin indium film deposited on a Si or SiO(2) surface. At the processing temperature of 190 degrees C, the indium film becomes a self-organized seed layer of molten droplets, receiving atomic silicon from a DC magnetron sputtering source rather than from the gaseous precursors used in conventional VLS growth. Simultaneous vigorous ion bombardment aligns the objects vertically and expedites mixing of oxygen and silicon into the indium. Silicon oxide precipitates from each droplet in the form of multiple thin strands having diameters as small as 5 nm. These strands form a single loose bundle growing normal to the surface, eventually consolidating to form one nanowire. The vertical rate of growth can reach 300 nm min(-1) in an environment containing argon, hydrogen, and traces of water vapour. This paper discusses the physical and chemical factors leading to the formation of the nanostructures. It also demonstrates how the shape of the resulting nanostructures can be further controlled by sputtering, during both VLS growth and post-VLS processing. Key technological advantages of the developed process are nanowire growth at low substrate temperatures and the ability to form aligned nanostructure arrays, without the use of lithography or templates, on any substrate onto which a thin silicon film can be deposited.
C1 [Bettge, Martin; MacLaren, Scott; Burdin, Steve; Wen, Jian-Guo; Petrov, Ivan; Sammann, Ernie] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA.
[Abraham, Daniel] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Bettge, M (reprint author), Univ Illinois, Frederick Seitz Mat Res Lab, 104 S Goodwin Ave, Urbana, IL 61801 USA.
EM bettge@mrl.uiuc.edu
RI MacLaren, Scott/A-5075-2009; Petrov, Ivan/D-4910-2011
OI Petrov, Ivan/0000-0002-2955-4897
FU US Department of Energy [DE-FG02-07ER46453, DE-FG02-07ER46471]; ANL [DOE
ANL 1F-00861]
FX The research was carried out in collaboration with Argonne National
Laboratory (ANL) and the Center for Microanalysis of Materials (CMM) at
the Frederick Seitz Materials Research Laboratory (FS-MRL), University
of Illinois at UrbanaChampaign. The CMM is partially supported by the US
Department of Energy under grants DE-FG02-07ER46453 and
DE-FG02-07ER46471. Financial support was provided through ANL under
Grant No. DOE ANL 1F-00861. The authors also would like to express their
thanks to Doug Jeffers, who provided inexhaustible assistance during the
experimental set-up, and to Ralph Nuzzo, whose donations of vacuum
hardware made part of this work possible.
NR 41
TC 15
Z9 15
U1 1
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD MAR 18
PY 2009
VL 20
IS 11
AR 115607
DI 10.1088/0957-4484/20/11/115607
PG 9
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 412JA
UT WOS:000263719900017
PM 19420447
ER
PT J
AU Jaitly, N
Mayampurath, A
Littlefield, K
Adkins, JN
Anderson, GA
Smith, RD
AF Jaitly, Navdeep
Mayampurath, Anoop
Littlefield, Kyle
Adkins, Joshua N.
Anderson, Gordon A.
Smith, Richard D.
TI Decon2LS: An open-source software package for automated processing and
visualization of high resolution mass spectrometry data
SO BMC BIOINFORMATICS
LA English
DT Article
ID MULTIPLY-CHARGED IONS; LC-MS; SPECTRA; DECONVOLUTION; PROTEOMICS;
IDENTIFICATION; DISTRIBUTIONS; ALGORITHMS; REDUCTION; SELECTION
AB Background: Data generated from liquid chromatography coupled to high-resolution mass spectrometry (LC-MS)based studies of a biological sample can contain large amounts of biologically significant information in the form of proteins, peptides, and metabolites. Interpreting this data involves inferring the masses and abundances of biomolecules injected into the instrument. Because of the inherent complexity of mass spectral patterns produced by these biomolecules, the analysis is significantly enhanced by using visualization capabilities to inspect and confirm results. In this paper we describe Decon2LS, an open-source software package for automated processing and visualization of high-resolution MS data. Drawing extensively on algorithms developed over the last ten years for ICR2LS, Decon2LS packages the algorithms as a rich set of modular, reusable processing classes for performing diverse functions such as reading raw data, routine peak finding, theoretical isotope distribution modelling, and deisotoping. Because the source code is openly available, these functionalities can now be used to build derivative applications in relatively fast manner. In addition, Decon2LS provides an extensive set of visualization tools, such as high performance chart controls.
Results: With a variety of options that include peak processing, deisotoping, isotope composition, etc, Decon2LS supports processing of multiple raw data formats. Deisotoping can be performed on an individual scan, an individual dataset, or on multiple datasets using batch processing. Other processing options include creating a two dimensional view of mass and liquid chromatography (LC) elution time features, generating spectrum files for tandem MS data, creating total intensity chromatograms, and visualizing theoretical peptide profiles. Application of Decon2LS to deisotope different datasets obtained across different instruments yielded a high number of features that can be used to identify and quantify peptides in the biological sample.
Conclusion: Decon2LS is an efficient software package for discovering and visualizing features in proteomics studies that require automated interpretation of mass spectra. Besides being easy to use, fast, and reliable, Decon2LS is also open-source, which allows developers in the proteomics and bioinformatics communities to reuse and refine the algorithms to meet individual needs.
Decon2LS source code, installer, and tutorials may be downloaded free of charge at http://http:/ncrr.pnl.gov/software/.
C1 [Jaitly, Navdeep; Mayampurath, Anoop; Littlefield, Kyle] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Adkins, Joshua N.; Anderson, Gordon A.; Smith, Richard D.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
EM ndjaitly@cs.utoronto.ca; anoop.mayampurath@pnl.gov;
kalittle@u.washington.edu; joshua.adkins@pnl.gov;
gordon.anderson@pnl.gov; dick.smith@pnl.gov
RI Smith, Richard/J-3664-2012; Adkins, Joshua/B-9881-2013
OI Smith, Richard/0000-0002-2381-2349; Adkins, Joshua/0000-0003-0399-0700
FU NIH [RR018522]; U. S. Department of Energy (DOE)
FX Portions of this research were supported by the NIH National Center for
Research Resources (RR018522), and the U. S. Department of Energy (DOE)
Office of Biological and Environmental Research. Datasets were obtained
in the Environmental Molecular Sciences Laboratory, a DOE national
scientific user facility located at the Pacific Northwest National
Laboratory (PNNL) in Richland, Washington. PNNL is a multiprogram
national laboratory operated by Battelle for the DOE under Contract No.
DE- AC05- 76RLO 1830.
NR 25
TC 112
Z9 113
U1 4
U2 25
PU BIOMED CENTRAL LTD
PI LONDON
PA CURRENT SCIENCE GROUP, MIDDLESEX HOUSE, 34-42 CLEVELAND ST, LONDON W1T
4LB, ENGLAND
SN 1471-2105
J9 BMC BIOINFORMATICS
JI BMC Bioinformatics
PD MAR 17
PY 2009
VL 10
AR 87
DI 10.1186/1471-2105-10-87
PG 15
WC Biochemical Research Methods; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Mathematical & Computational Biology
GA 439DF
UT WOS:000265607100002
PM 19292916
ER
PT J
AU Goksu, EI
Nellis, BA
Lin, WC
Satcher, JH
Groves, JT
Risbud, SH
Longo, ML
AF Goksu, Emel I.
Nellis, Barbara A.
Lin, Wan-Chen
Satcher, Joe H., Jr.
Groves, Jay T.
Risbud, Subhash H.
Longo, Marjorie L.
TI Effect of Support Corrugation on Silica Xerogel-Supported
Phase-Separated Lipid Bilayers
SO LANGMUIR
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; MAGNETIC-RESONANCE; POROUS ALUMINA; MEMBRANE;
DOMAINS; TRAFFICKING; DIFFUSION; GLASS
AB Lipid bilayers supported by substrates with nanometer-scale surface corrugations hold interest in understanding both nanoparticle-membrane interactions and the challenges of constructing models of cell membranes on surfaces with desirable properties, e.g., porosity. Here, we successfully form a two-phase (gel-fluid) lipid bilayer supported by nanoporous silica xerogel. Surface topology, lateral diffusion coefficient, and lipid density in comparison to mica-supported lipid bilayers were characterized by atomic force microscopy, fluorescence recovery after photobleaching (FRAP), fluorescence correlation spectroscopy (FCS), and quantitative fluorescence microscopy, respectively. We found that the two-phase lipid bilayer follows the silica xerogel surface contours. The corrugation imparted on the lipid bilayer results in a lipid density that is twice that on a flat mica surface in the fluid regions. In direct agreement with the doubling of actual bilayer area in a projected area, we find that the lateral diffusion coefficient (D) of fluid lipids on silica xerogel (similar to 1.7 mu m(2)/s) is lower than on mica (similar to 3.9 mu m(2)/s) by both FRAP and FCS techniques. Furthermore, the gel-phase domains on silica xerogel compared to mica were larger and less numerous. Overall, our results suggest the presence of a relatively defect-free continuous two-phase lipid bilayer that penetrates approximately midway into the first layer of similar to 50 nm silica xerogel beads.
C1 [Goksu, Emel I.; Nellis, Barbara A.; Risbud, Subhash H.; Longo, Marjorie L.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Nellis, Barbara A.; Satcher, Joe H., Jr.] Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA.
[Lin, Wan-Chen; Groves, Jay T.] Univ Calif Berkeley, Howard Hughes Med Inst, Dept Chem, Berkeley, CA 94720 USA.
RP Longo, ML (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
EM mllongo@ucdavis.edu
RI Lin, Wan-Chen/A-4348-2009; Wunder, Stephanie/B-5066-2012; Zdilla,
Michael/B-4145-2011
FU NSF NIRT Program [CBET 0506602]; NSF MRSEC Program CPIMA [DMR 0213618];
U.S. Department of Energy; Lawrence Livermore National Laboratory
[W-7405Eng-48, DE-AC52-07NA27344]
FX We acknowledge funding by the NSF NIRT Program (CBET 0506602) and the
NSF MRSEC Program CPIMA (NSF DMR 0213618). This work was performed under
the auspices of the U.S. Department of Energy by Lawrence Livermore
National Laboratory in part under Contract W-7405Eng-48 and in part
under Contract DE-AC52-07NA27344.
NR 24
TC 21
Z9 21
U1 1
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 MAR 17
PY 2009
VL 25
IS 6
BP 3713
EP 3717
DI 10.1021/la803851b
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 418JR
UT WOS:000264145000057
PM 19708250
ER
PT J
AU Mortensen, NP
Fowlkes, JD
Sullivan, CJ
Allison, DP
Larsen, NB
Molin, S
Doktycz, MJ
AF Mortensen, Ninell P.
Fowlkes, Jason D.
Sullivan, Claretta J.
Allison, David P.
Larsen, Niels B.
Molin, Soren
Doktycz, Mitchel J.
TI Effects of Colistin on Surface Ultrastructure and Nanomechanics of
Pseudomonas aeruginosa Cells
SO LANGMUIR
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; ESCHERICHIA-COLI; POLYMYXIN-B; OUTER MEMBRANE;
SALMONELLA-TYPHIMURIUM; PEPTIDE ANTIBIOTICS; CYSTIC-FIBROSIS; AFM;
SPHEROPLASTS; ELASTICITY
AB Chronic lung infections in cystic fibrosis patients are primarily caused by Pseudomonas aeruginosa. Though difficult to counteract effectively, colistin, an antimicrobial peptide, is proving useful. However, the exact mechanism of action of colistin is not fully understood. In this study, atomic force microscopy (AFM) was used to evaluate, in a liquid environment, the changes in P. aeruginosa morphology and nanomechanical properties due to exposure to colistin. The results of this work revealed that after 1 h of colistin exposure the ratio of individual bacteria to those found to be arrested in the process of division changed from 1.9 to 0.4 and the length of the cells decreased significantly. Morphologically, it was observed that the bacterial surface changed from a smooth to a wrinkled phenotype after 3 h exposure to colistin. Nanomechanically, in untreated bacteria, the cantilever indented the bacterial surface significantly more than it did after 1 h of colistin treatment (P-value = 0.015). Concurrently, after 2 h of exposure to colistin, a significant increase in the bacterial spring constant was also observed. These results indicate that the antimicrobial peptide colistin prevents bacterial proliferation by repressing cell division. We also found that treatment with colistin caused an increase in the rigidity of the bacterial cell wall while morphologically the cell surface changed from smooth to wrinkled, perhaps due to loss of lipopolysaccharides (LPS) or surface proteins.
C1 [Fowlkes, Jason D.; Doktycz, Mitchel J.] Oak Ridge Natl Lab, Biol & Nanoscale Syst Grp, Biosci Div, Oak Ridge, TN 37831 USA.
[Mortensen, Ninell P.; Larsen, Niels B.] Tech Univ Denmark, Danish Polymer Ctr, Risoe Natl Lab, DK-4000 Roskilde, Denmark.
[Mortensen, Ninell P.; Molin, Soren] Tech Univ Denmark, Bioctr, Dept Syst Biol, DK-2800 Lyngby, Denmark.
[Mortensen, Ninell P.; Allison, David P.] Univ Tennessee, Dept Biochem & Cellular & Mol Biol, Knoxville, TN 37932 USA.
RP Doktycz, MJ (reprint author), Oak Ridge Natl Lab, Biol & Nanoscale Syst Grp, Biosci Div, POB 2008, Oak Ridge, TN 37831 USA.
RI Doktycz, Mitchel/A-7499-2011; Larsen, Niels/A-9384-2008
OI Doktycz, Mitchel/0000-0003-4856-8343; Larsen, Niels/0000-0001-6506-3991
FU Idella Fond for a travel grant; Lundbeckfonden; Office of Biological and
Environmental Research, U.S. Department of Energy; U.S. Department of
Energy [DE-AC05-00OR22725]
FX We would like to thank the Idella Fond for a travel grant to N.P.M. and
Lundbeckfonden for financial support. Additionally, J.D.F., C.J.S.,
D.P.A., and MJ.D. acknowledge support from the Office of Biological and
Environmental Research, U.S. Department of Energy. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of
Energy under Contract No. DE-AC05-00OR22725.
NR 45
TC 37
Z9 38
U1 2
U2 22
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD MAR 17
PY 2009
VL 25
IS 6
BP 3728
EP 3733
DI 10.1021/la803898g
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 418JR
UT WOS:000264145000059
PM 19227989
ER
PT J
AU Bouchard, LS
Anwar, MS
Liu, GL
Hann, B
Xie, ZH
Gray, JW
Wang, XD
Pines, A
Chen, FF
AF Bouchard, Louis-S.
Anwar, M. Sabieh
Liu, Gang L.
Hann, Byron
Xie, Z. Harry
Gray, Joe W.
Wang, Xueding
Pines, Alexander
Chen, Fanqing Frank
TI Picomolar sensitivity MRI and photoacoustic imaging of cobalt
nanoparticles
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE dual-modality imaging; ferromagnetic nanoparticle; molecular imaging;
MRI contrast; photoacoustic tomography
ID BRAINS IN-VIVO; CONTRAST AGENT; GOLD NANORODS; OPTOACOUSTIC TOMOGRAPHY;
HIGHLY EFFICIENT; BLOOD-VESSELS; QUANTUM DOTS; RAT-BRAIN; THERAPY;
CANCER
AB Multimodality imaging based on complementary detection principles has broad clinical applications and promises to improve the accuracy of medical diagnosis. This means that a tracer particle advantageously incorporates multiple functionalities into a single delivery vehicle. In the present work, we explore a unique combination of MRI and photoacoustic tomography (PAT) to detect picomolar concentrations of nanoparticles. The nanoconstruct consists of ferromagnetic (Co) particles coated with gold (Au) for biocompatibility and a unique shape that enables optical absorption over a broad range of frequencies. The end result is a dual-modality probe useful for the detection of trace amounts of nanoparticles in biological tissues, in which MRI provides volume detection, whereas PAT performs edge detection.
C1 [Bouchard, Louis-S.] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
[Anwar, M. Sabieh] Lahore Univ Management Sci, Sch Sci & Engn, Lahore 54792, Pakistan.
[Liu, Gang L.; Hann, Byron; Gray, Joe W.; Chen, Fanqing Frank] Univ Calif San Francisco, Ctr Comprehens Canc, San Francisco, CA 94143 USA.
[Xie, Z. Harry] Bruker Opt Inc, Minispec Div, The Woodlands, TX 77381 USA.
[Wang, Xueding] Univ Michigan, Dept Radiol, Ann Arbor, MI 48109 USA.
[Pines, Alexander] Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA.
[Pines, Alexander] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Chen, Fanqing Frank] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Chen, Fanqing Frank] Zhejiang Univ, Zhejiang Calif Nanosyst Inst, Hangzhou 310029, Zhejiang, Peoples R China.
RP Bouchard, LS (reprint author), Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA.
EM bouchard@chem.ucla.edu; sabieh@1ums.edu.pk; xdwang@umich.edu;
pines@berkeley.edu; f.chen@lbl.gov
OI Anwar, Muhammad Sabieh/0000-0001-5039-8828
FU Prostate Cancer Foundation; University of California, San Francisco
(UCSF); Prostate Cancer Specialized Program of Research Excellence
(SPORE); Camille and Henry Dreyfus Foundation; National Natural Science
Foundation of China [NSFC-30828010]; Zhejiang California Nanosystem
Institute; Department of Defense Breast Cancer Research Program
[BC045345, BC061995]; University of California San Francisco Prostate
Cancer SPORE; National Institutes of Health [P50 CA89520, R01 AR055179];
Office of Science, Office of Basic Energy Sciences, Materials Sciences
Division; U. S. Department of Energy [DE-AC03-76SF00098]; Department of
Defense Prostate Cancer Research Program [W81X WH-07-1-0231]
FX This work was supported by the Prostate Cancer Foundation and University
of California, San Francisco (UCSF), Prostate Cancer Specialized Program
of Research Excellence (SPORE); Camille and Henry Dreyfus Foundation
(L.-S. B.); National Natural Science Foundation of China Grant
NSFC-30828010, the Zhejiang California Nanosystem Institute, Department
of Defense Breast Cancer Research Program Grants BC045345 and BC061995,
and University of California San Francisco Prostate Cancer SPORE award
(National Institutes of Health Grant P50 CA89520) (F. F. C.); Director,
Office of Science, Office of Basic Energy Sciences, Materials Sciences
Division, of the U. S. Department of Energy Contract DE-AC03-76SF00098;
National Institutes of Health Grant R01 AR055179; and Department of
Defense Prostate Cancer Research Program Grant W81X WH-07-1-0231.
NR 41
TC 97
Z9 98
U1 0
U2 24
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 17
PY 2009
VL 106
IS 11
BP 4085
EP 4089
DI 10.1073/pnas.0813019106
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 420HD
UT WOS:000264278800008
PM 19251659
ER
PT J
AU Dai, JH
Si, QM
Zhu, JX
Abrahams, E
AF Dai, Jianhui
Si, Qimiao
Zhu, Jian-Xin
Abrahams, Elihu
TI Iron pnictides as a new setting for quantum criticality
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE magnetism; phase transition; electron correlation
ID SUPERCONDUCTIVITY; TRANSITION; SYSTEMS
AB Two major themes in the physics of condensed matter are quantum critical phenomena and unconventional superconductivity. These usually occur in the context of competing interactions in systems of strongly correlated electrons. All this interesting physics comes together in the behavior of the recently discovered iron pnictide compounds that have generated enormous interest because of their moderately high-temperature superconductivity. The ubiquity of antiferromagnetic ordering in their phase diagrams naturally raises the question of the relevance of magnetic quantum criticality, but the answer remains uncertain both theoretically and experimentally. Here, we show that the undoped iron pnictides feature a unique type of magnetic quantum critical point, which results from a competition between electronic localization and itinerancy. Our theory provides a mechanism to understand the experimentally observed variation of the ordered moment among the undoped iron pnictides. We suggest P substitution for As in the undoped iron pnictides as a means to access this example of magnetic quantum criticality in an unmasked fashion. Our findings point to the iron pnictides as a much-needed setting for quantum criticality, one that offers a unique set of control parameters.
C1 [Abrahams, Elihu] Rutgers State Univ, Ctr Mat Theory, Dept Phys & Astron, Piscataway, NJ 08855 USA.
[Dai, Jianhui] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China.
[Si, Qimiao] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
[Zhu, Jian-Xin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Abrahams, E (reprint author), Rutgers State Univ, Ctr Mat Theory, Dept Phys & Astron, Piscataway, NJ 08855 USA.
EM abrahams@physics.rutgers.edu
OI Zhu, Jianxin/0000-0001-7991-3918
FU National Science Foundation of China, 973 Program; Program for Changjian
Scholars and Innovative Research Team in University [RT-0754]; Education
Ministry of China; Robert A. Welch Foundation; Department of Energy
FX We thank G. Cao, P. Coleman, C. Geibel, A. Jesche, C. Krellner, Z.-Y.
Lu, E. Morosan, D. Natelson, C. Xu, and Z. A. Xu for useful discussions.
This work was supported by the National Science Foundation of China, the
973 Program, and the Program for Changjian Scholars and Innovative
Research Team in University (RT-0754) of the Education Ministry of China
(J. D.), the Robert A. Welch Foundation (Q. S.), and the Department of
Energy (J.-X. Z.).
NR 43
TC 127
Z9 129
U1 4
U2 24
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 17
PY 2009
VL 106
IS 11
BP 4118
EP 4121
DI 10.1073/pnas.0900886106
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 420HD
UT WOS:000264278800014
PM 19273850
ER
PT J
AU Anderson, BE
Guyer, RA
Ulrich, TJ
Johnson, PA
AF Anderson, Brian E.
Guyer, Robert A.
Ulrich, Timothy J.
Johnson, Paul A.
TI Time reversal of continuous-wave, steady-state signals in elastic media
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE elastic waves; elasticity
ID ACOUSTICS; MIRROR
AB Experimental observations of spatial focusing of continuous-wave, steady-state elastic waves in a reverberant elastic cavity using time reversal are reported here. Spatially localized focusing is achieved when multiple channels are employed, while a single channel does not yield such focusing. The amplitude of the energy at the focal location increases as the square of the number of channels used, while the amplitude elsewhere in the medium increases proportionally with the number of channels used. The observation is important in the context of imaging in solid laboratory samples as well as problems involving continuous-wave signals in Earth.
C1 [Anderson, Brian E.; Guyer, Robert A.; Ulrich, Timothy J.; Johnson, Paul A.] Los Alamos Natl Lab, Geophys Grp EES 17, Los Alamos, NM 87545 USA.
RP Anderson, BE (reprint author), Los Alamos Natl Lab, Geophys Grp EES 17, Los Alamos, NM 87545 USA.
EM bea@byu.edu
RI Anderson, Brian/G-8819-2012;
OI Johnson, Paul/0000-0002-0927-4003
FU Institutional Support (LDRD)
FX This work was supported by Institutional Support (LDRD) at the Los
Alamos National Laboratory. The authors wish to thank Pierre-Yves Le Bas
for his assistance in setting up the experiments and helpful
discussions. The authors also wish to thank Michele Griffa and CarEne
Larmat for their helpful discussions.
NR 14
TC 7
Z9 7
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 16
PY 2009
VL 94
IS 11
AR 111908
DI 10.1063/1.3097811
PG 3
WC Physics, Applied
SC Physics
GA 421TD
UT WOS:000264380300024
ER
PT J
AU Arenal, R
Stephan, O
Bruno, P
Gruen, DM
AF Arenal, R.
Stephan, O.
Bruno, P.
Gruen, D. M.
TI Spatially resolved electron energy loss spectroscopy on n-type
ultrananocrystalline diamond films
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE diamond; electrical conductivity; electron energy loss spectra;
nanostructured materials; thin films
ID BONDING STRUCTURE; NITROGEN; CARBON
AB The addition of nitrogen to the synthesis gas during synthesis of ultrananocrystalline-diamond (UNCD) films results in films uniquely exhibiting very high n-type electrical conductivity even at ambient temperatures. This result is due to the formation of nanowires having elongated diamond core nanostructures and a sp(2)-bonded C sheath surrounding the core. The work presented here provides detailed confirmation of this important result through spatially resolved-electron energy loss spectroscopy. The direct observation of nitrogen incorporated in the sheath has been enabled. The incorporation of this nitrogen provides strong support to a plausible mechanism for the n-type conduction characteristic of the UNCD films.
C1 [Arenal, R.] Off Natl Etud & Rech Aerosp, CNRS, Lab Etud Microstruct, F-92322 Chatillon, France.
[Arenal, R.; Bruno, P.; Gruen, D. M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Stephan, O.] Univ Paris 11, Phys Solides Lab, UMR 8502, CNRS, F-91405 Orsay, France.
RP Arenal, R (reprint author), Off Natl Etud & Rech Aerosp, CNRS, Lab Etud Microstruct, F-92322 Chatillon, France.
EM raul.arenal@onera.fr
RI bruno, paola/G-5786-2011; Arenal, Raul/D-2065-2009
OI Arenal, Raul/0000-0002-2071-9093
FU U. S. Department of Energy, Office of Science [DE-AC02-06CH11357.]
FX This work was supported by the U. S. Department of Energy, Office of
Science, under Contract No. DE-AC02-06CH11357.
NR 18
TC 7
Z9 7
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 16
PY 2009
VL 94
IS 11
AR 111905
DI 10.1063/1.3095663
PG 3
WC Physics, Applied
SC Physics
GA 421TD
UT WOS:000264380300021
ER
PT J
AU Dai, Q
Schubert, MF
Kim, MH
Kim, JK
Schubert, EF
Koleske, DD
Crawford, MH
Lee, SR
Fischer, AJ
Thaler, G
Banas, MA
AF Dai, Q.
Schubert, M. F.
Kim, M. H.
Kim, J. K.
Schubert, E. F.
Koleske, D. D.
Crawford, M. H.
Lee, S. R.
Fischer, A. J.
Thaler, G.
Banas, M. A.
TI Internal quantum efficiency and nonradiative recombination coefficient
of GaInN/GaN multiple quantum wells with different dislocation densities
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE carrier density; dislocation density; gallium compounds; III-V
semiconductors; indium compounds; nonradiative transitions;
photoluminescence; semiconductor growth; semiconductor heterojunctions;
semiconductor quantum wells; wide band gap semiconductors
ID LIGHT-EMITTING-DIODES; GAN
AB Room-temperature photoluminescence (PL) measurements are performed on GaInN/GaN multiple-quantum-well heterostructures grown on GaN-on-sapphire templates with different threading-dislocation densities. The selective optical excitation of quantum wells and the dependence of integrated PL intensity on excitation power allow us to determine the internal quantum efficiency (IQE) as a function of carrier concentration. The measured IQE of the sample with the lowest dislocation density (5.3x10(8) cm(-2)) is as high as 64%. The measured nonradiative coefficient A varies from 6x10(7) to 2x10(8) s(-1) as the dislocation density increases from 5.3x10(8) to 5.7x10(9) cm(-2), respectively.
C1 [Dai, Q.; Schubert, M. F.; Kim, M. H.; Kim, J. K.; Schubert, E. F.] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
[Dai, Q.; Schubert, M. F.; Kim, M. H.; Kim, J. K.; Schubert, E. F.] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA.
[Koleske, D. D.; Crawford, M. H.; Lee, S. R.; Fischer, A. J.; Thaler, G.; Banas, M. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Dai, Q (reprint author), Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA.
EM efschubert@rpi.edu
FU DOE Office of Basic Energy Sciences; Laboratory Directed Research and
Development program; United States Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]
FX The RPI authors thank Sandia National Laboratories, the National Science
Foundation, New York State, Samsung Electro- Mechanics Co., Crystal IS,
and Troy Research Corporation. The Sandia authors acknowledge the DOE
Office of Basic Energy Sciences and the Laboratory Directed Research and
Development program for partial funding of this study. Sandia is a
multiprogram laboratory operated by Sandia Corporation, a Lockheed
Martin Co., for the United States Department of Energy's National
Nuclear Security Administration under Contract No. DE-AC04-94AL85000.
NR 19
TC 139
Z9 144
U1 6
U2 57
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 16
PY 2009
VL 94
IS 11
AR 111109
DI 10.1063/1.3100773
PG 3
WC Physics, Applied
SC Physics
GA 421TD
UT WOS:000264380300009
ER
PT J
AU Deskins, NA
AF Deskins, N. Aaron
TI Ti 3p electrons: Core or valence?
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID DENSITY-FUNCTIONAL CALCULATIONS; TOTAL-ENERGY CALCULATIONS; WAVE
BASIS-SET; TITANIUM-DIOXIDE; OXYGEN VACANCIES; MOLECULAR-DYNAMICS;
TRANSITION-METAL; 1ST PRINCIPLES; 110 SURFACE; RUTILE
AB The debate over whether Ti 3p electrons should be treated as core or valence electrons when using pseudopotential-based density functional theory is addressed. Two pseudopotentials that treat the 3p electrons either as core or valence are compared by modeling bulk TiO(2) and Ti, TiO(2) surface adsorption and reduction, as well as TiCl(x) reactions. The present study shows that the 3p electrons can often be treated as core states, but frozen 3p electrons may be unsuitable for processes involving large electronic changes (for example charge transfer or chemical bonding). (C) 2009 Elsevier B.V. All rights reserved.
C1 Pacific NW Natl Lab, Chem & Mat Sci Div, Richland, WA 99354 USA.
RP Deskins, NA (reprint author), Pacific NW Natl Lab, Chem & Mat Sci Div, Battelle Blvd,K1-83, Richland, WA 99354 USA.
EM nathaniel.deskins@pnl.gov
RI Deskins, Nathaniel/H-3954-2012
FU Department of Energy; Office of Basic Energy Sciences
FX The author wishes to acknowledge Roger Rousseau and Michel Dupuis for
useful discussions and comments. Funding was provided by the Department
of Energy, Office of Basic Energy Sciences. Computational resources were
provided by the Molecular Science Computing Facility located at the
Environmental Molecular Science Laboratory in Richland, WA and the
National Energy Research Scientific Computing Center at Lawrence
Berkeley National Laboratory. All work was performed at Pacific
Northwest National Laboratory (PNNL). Battelle operates PNNL for the US
Department of Energy.
NR 49
TC 10
Z9 10
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 MAR 16
PY 2009
VL 471
IS 1-3
BP 75
EP 79
DI 10.1016/j.cplett.2009.02.011
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417HX
UT WOS:000264068200014
ER
PT J
AU Peng, HS
Sun, XM
AF Peng, Huisheng
Sun, Xuemei
TI Highly aligned carbon nanotube/polymer composites with much improved
electrical conductivities
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID POLYMER NANOCOMPOSITES; NANOTUBES; FILMS; ARRAYS; FIBERS
AB Carbon nanotube (CNT)/polymer composites are generally synthesized by coating CNT/polymer mixture solutions into films or powders. A main challenge is that CNTs are randomly dispersed in derived composites, which results in extremely low electrical conductivities. Here we report the synthesis of highly aligned CNT/polymer composites with much improved conductivities by incorporating polymers into aligned CNT arrays. The key point in this work is to grow dense and robust CNT arrays through a chemical vapor deposition process. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Peng, Huisheng; Sun, Xuemei] Fudan Univ, Adv Mat Lab, Shanghai 200438, Peoples R China.
[Peng, Huisheng; Sun, Xuemei] Fudan Univ, Dept Macromol Sci, Shanghai 200438, Peoples R China.
[Peng, Huisheng] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Peng, HS (reprint author), Fudan Univ, Adv Mat Lab, Shanghai 200438, Peoples R China.
EM penghs@fudan.edu.cn
RI Peng, Huisheng/G-8867-2011
NR 22
TC 58
Z9 59
U1 2
U2 32
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 MAR 16
PY 2009
VL 471
IS 1-3
BP 103
EP 105
DI 10.1016/j.cplett.2009.02.008
PG 3
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 417HX
UT WOS:000264068200019
ER
PT J
AU Spencer, LP
Yang, P
Scott, BL
Batista, ER
Boncella, JM
AF Spencer, Liam P.
Yang, Ping
Scott, Brian L.
Batista, Enrique R.
Boncella, James M.
TI Uranium(VI) Bis(imido) Chalcogenate Complexes: Synthesis and Density
Functional Theory Analysis
SO INORGANIC CHEMISTRY
LA English
DT Article
ID URANYL ARYLOXIDE COMPLEXES; RAY CRYSTAL-STRUCTURE; COORDINATION
CHEMISTRY; MOLECULAR-STRUCTURES; IMIDO ANALOGS; BOND; ACTINIDE; ION; SE;
LA
AB Bis(imido) uranium(VI) trans- and cis-dichalcogenate complexes with the general formula U((NBu)-Bu-t)(2)(EAr)(2)(OPPh3)(2) (EAr = O-2-(BuC6H4)-Bu-t, SPh, SePh, TePh) and U((NBu)-Bu-t)(2)(EAr)(2)(R(2)bpy) (EAr = SPh, SePh, TePh) (R(2)bpy = 4,4'-disubstituted-2,2'-bipyridyl, R = Me, Bu-t) have been prepared. This family of complexes includes the first reported monodentate selenolate and tellurolate complexes of uranium(VI). Density functional theory calculations show that covalent interactions in the U-E bond increase in the trans-dichalcogenate series U(NtBu)(2)(EAr)(2)(OPPh3)(2) as the size of the chalcogenate donor increases and that both 5f and 6d orbital participation is important in the M-E bonds of U-S, U-Se, and U-Te complexes.
C1 [Spencer, Liam P.; Scott, Brian L.; Boncella, James M.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Yang, Ping; Batista, Enrique R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Boncella, JM (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, MS J514, Los Alamos, NM 87545 USA.
EM boncella@lanl.gov
RI Yang, Ping/E-5355-2011; Scott, Brian/D-8995-2017;
OI Scott, Brian/0000-0003-0468-5396; Yang, Ping/0000-0003-4726-2860;
Boncella, James/0000-0001-8393-392X
NR 40
TC 41
Z9 41
U1 3
U2 15
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
EI 1520-510X
J9 INORG CHEM
JI Inorg. Chem.
PD MAR 16
PY 2009
VL 48
IS 6
BP 2693
EP 2700
DI 10.1021/ic802212m
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 417GG
UT WOS:000264063900046
PM 19216556
ER
PT J
AU Nemura, H
Ishii, N
Aoki, S
Hatsuda, T
AF Nemura, Hidekatsu
Ishii, Noriyoshi
Aoki, Sinya
Hatsuda, Tetsuo
TI Hyperon-nucleon force from lattice QCD
SO PHYSICS LETTERS B
LA English
DT Article
DE Lattice QCD; Hyperon-nucleon interaction; Nuclear forces; Hypernuclei
ID EFFECTIVE-FIELD THEORY; SCATTERING LENGTHS; HYPERNUCLEI; MATRIX
AB We calculate potentials between a proton and a Xi(0) (hyperon with strangeness -2) through the equal-time Bethe-Salpeter wave function. employing quenched lattice QCD simulations with the plaquette gauge action and the Wilson quark action on (4.5 fm)(4) lattice at the lattice spacing a similar or equal to 0.14 fill. The ud quark mass in our Study corresponds to m(pi) similar or equal to 0.37 and 0.51 GeV, while the s quark mass corresponds to the physical value of m(K). The central p Xi(0) potential has a strong (weak) repulsive core in the S-1(0) (S-3(1)) channel for r less than or similar to 0.6 fm, while the potential has attractive well at medium and long distances (0.6 fm less than or similar to r less than or similar to 1.2 fm) in both channels. The sign of the p Xi(0) scattering length and its quark mass dependence indicate a net attraction in both channels at low energies. (C) 2009 Published by Elsevier B.V.
C1 [Nemura, Hidekatsu] RIKEN, Nishina Ctr Accelerator Based Sci, Adv Meson Sci Lab, Wako, Saitama 3510198, Japan.
[Ishii, Noriyoshi] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058571, Japan.
[Aoki, Sinya] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan.
[Aoki, Sinya] Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA.
[Hatsuda, Tetsuo] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan.
RP Nemura, H (reprint author), RIKEN, Nishina Ctr Accelerator Based Sci, Nucl Phys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan.
EM nemura@riken.jp
RI Hatsuda, Tetsuo/C-2901-2013
FU Large Scale Simulation [FY2007]; Japan Society for Promotion of Science
(JSPS) [17740174]; Ministry of Education, Science, Sports and Culture
[13135204, 15540254, 18540253, 19540261, 20340047]
FX This work is Supported by the Large Scale Simulation Program No. 07-07
(FY2007) of High Energy Accelerator Research Organization (KEK). We are
grateful for authors and rnaintainers of CPS++ [361, of which a modified
version is used for measurement done in this work. H.N. is supported by
tile Special Postcloctoral Researchers Program at RIKEN. This research
was partly supported by Grants-in-Aid for Young Scientists (B) (No.
17740174) from the Japan Society for Promotion of Science (JSPS), and by
the Ministry of Education, Science, Sports and Culture, Grant-in-Aid
(Nos. 13135204,15540254,18540253,19540261,20340047).
NR 43
TC 69
Z9 69
U1 0
U2 0
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 MAR 16
PY 2009
VL 673
IS 2
BP 136
EP 141
DI 10.1016/j.physletb.2009.02.003
PG 6
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 419QW
UT WOS:000264235400005
ER
PT J
AU Cao, QH
Ma, E
Shaughnessy, G
AF Cao, Qing-Hong
Ma, Ernest
Shaughnessy, Gabe
TI Dark matter: The leptonic connection
SO PHYSICS LETTERS B
LA English
DT Article
ID NEUTRINO MASS
AB Recent observations of high-energy positrons and electrons by the PAMELA and ATIC experiments may be an indication of the annihilation of (lark matter into leptons and not quarks. This leptonic connection was foreseen already some years ago in two different models of radiative neutrino mass. We discuss here the generic interactions (nu eta(0) - l eta(+))chi and l(c) zeta(-) chi(c) which allow this to happen, where chi and/or chi(c) are fermionic dark-matter candidates. We point out in particular the importance of chi chi -> l(+) l(-) gamma to both positron and gamma-ray signals within this framework. (C) 2009 Published by Elsevier B.V.
C1 [Shaughnessy, Gabe] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
[Cao, Qing-Hong; Shaughnessy, Gabe] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA.
[Cao, Qing-Hong] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60439 USA.
[Ma, Ernest] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92531 USA.
RP Shaughnessy, G (reprint author), Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
EM g-shaughnessy@northwestern.edu
NR 46
TC 63
Z9 63
U1 0
U2 0
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 MAR 16
PY 2009
VL 673
IS 2
BP 152
EP 155
DI 10.1016/j.physletb.2009.02.015
PG 4
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 419QW
UT WOS:000264235400008
ER
PT J
AU Rich, RL
Papalia, GA
Flynn, PJ
Furneisen, J
Quinn, J
Klein, JS
Katsamba, PS
Waddell, MB
Scott, M
Thompson, J
Berlier, J
Corry, S
Baltzinger, M
Zeder-Lutzi, G
Schoenemann, A
Clabbers, A
Wieckowski, S
Murphy, MM
Page, P
Ryan, TE
Duffner, J
Ganguly, T
Corbin, J
Gautam, S
Anderluh, G
Bavdek, A
Reichmann, D
Yadav, SP
Hommema, E
Pol, E
Drake, A
Klakamp, S
Chapman, T
Kernaghan, D
Miller, K
Schuman, J
Lindquist, K
Herlihy, K
Murphy, MB
Bohnsack, R
Andrien, B
Brandani, P
Terwey, D
Millican, R
Darling, RJ
Wang, L
Carter, Q
Dotzlaf, J
Lopez-Sagaseta, J
Campbell, I
Torreri, P
Hoos, S
England, P
Liu, Y
Abdiche, Y
Malashock, D
Pinkerton, A
Wong, M
Lafer, E
Hinck, C
Thompson, K
Di Primo, C
Joyce, A
Brooks, J
Torta, F
Hagel, ABB
Krarup, J
Pass, J
Ferreira, M
Shikov, S
Mikolajczyk, M
Abe, Y
Barbato, G
Giannetti, AM
Krishnamoorthy, G
Beusink, B
Satpaev, D
Tsang, T
Fang, E
Partridge, J
Brohawn, S
Horn, J
Pritsch, O
Obal, G
Nilapwar, S
Busby, B
Gutierrez-Sanchez, G
Das Gupta, R
Canepa, S
Witte, K
Nikolovska-Coleska, Z
Cho, YH
D'Agata, R
Schlick, K
Calvert, R
Munoz, EM
Hernaiz, MJ
Bravman, T
Dines, M
Yang, MH
Puskas, A
Boni, E
Li, JJ
Wear, M
Grinberg, A
Baardsnes, J
Dolezal, O
Gainey, M
Anderson, H
Peng, JL
Lewis, M
Spies, P
Trinh, Q
Bibikov, S
Raymond, J
Yousef, M
Chandrasekaran, V
Feng, YG
Emerick, A
Mundodo, S
Guimaraes, R
McGirr, K
Li, YJ
Hughes, H
Mantz, H
Skrabana, R
Witmer, M
Ballard, J
Martin, L
Skladal, P
Korza, G
Laird-Offringa, I
Lee, CS
Khadir, A
Podlaski, F
Neuner, P
Rothacker, J
Rafique, A
Dankbar, N
Kainz, P
Gedig, E
Vuyisich, M
Boozer, C
Ly, N
Toews, M
Uren, A
Kalyuzhniy, O
Lewis, K
Chomey, E
Pak, BJ
Myszka, DG
AF Rich, Rebecca L.
Papalia, Giuseppe A.
Flynn, Peter J.
Furneisen, Jamie
Quinn, John
Klein, Joshua S.
Katsamba, Phini S.
Waddell, M. Brent
Scott, Michael
Thompson, Joshua
Berlier, Judie
Corry, Schuyler
Baltzinger, Mireille
Zeder-Lutzi, Gabrielle
Schoenemann, Andreas
Clabbers, Anca
Wieckowski, Sebastien
Murphy, Mary M.
Page, Phillip
Ryan, Thomas E.
Duffner, Jay
Ganguly, Tanmoy
Corbin, John
Gautam, Satyen
Anderluh, Gregor
Bavdek, Andrej
Reichmann, Dana
Yadav, Satya P.
Hommema, Eric
Pol, Ewa
Drake, Andrew
Klakamp, Scott
Chapman, Trevor
Kernaghan, Dawn
Miller, Ken
Schuman, Jason
Lindquist, Kevin
Herlihy, Kara
Murphy, Michael B.
Bohnsack, Richard
Andrien, Bruce
Brandani, Pietro
Terwey, Danny
Millican, Rohn
Darling, Ryan J.
Wang, Liann
Carter, Quincy
Dotzlaf, Joe
Lopez-Sagaseta, Jacinto
Campbell, Islay
Torreri, Paola
Hoos, Sylviane
England, Patrick
Liu, Yang
Abdiche, Yasmina
Malashock, Daniel
Pinkerton, Alanna
Wong, Melanie
Lafer, Eileen
Hinck, Cynthia
Thompson, Kevin
Di Primo, Carmelo
Joyce, Alison
Brooks, Jonathan
Torta, Federico
Hagel, Anne Birgitte Bagge
Krarup, Janus
Pass, Jesper
Ferreira, Monica
Shikov, Sergei
Mikolajczyk, Malgorzata
Abe, Yuki
Barbato, Gaetano
Giannetti, Anthony M.
Krishnamoorthy, Ganeshram
Beusink, Bianca
Satpaev, Daulet
Tsang, Tiffany
Fang, Eric
Partridge, James
Brohawn, Stephen
Horn, James
Pritsch, Otto
Obal, Gonzalo
Nilapwar, Sanjay
Busby, Ben
Gutierrez-Sanchez, Gerardo
Das Gupta, Ruchira
Canepa, Sylvie
Witte, Krista
Nikolovska-Coleska, Zaneta
Cho, Yun Hee
D'Agata, Roberta
Schlick, Kristian
Calvert, Rosy
Munoz, Eva M.
Hernaiz, Maria Jose
Bravman, Tsafir
Dines, Monica
Yang, Min-Hsiang
Puskas, Agnes
Boni, Erica
Li, Jiejin
Wear, Martin
Grinberg, Asya
Baardsnes, Jason
Dolezal, Olan
Gainey, Melicia
Anderson, Henrik
Peng, Jinlin
Lewis, Mark
Spies, Peter
Trinh, Quyhn
Bibikov, Sergei
Raymond, Jill
Yousef, Mohammed
Chandrasekaran, Vidya
Feng, Yuguo
Emerick, Anne
Mundodo, Suparna
Guimaraes, Rejane
McGirr, Katy
Li, Yue-Ji
Hughes, Heather
Mantz, Hubert
Skrabana, Rostislav
Witmer, Mark
Ballard, Joshua
Martin, Loic
Skladal, Petr
Korza, George
Laird-Offringa, Ite
Lee, Charlene S.
Khadir, Abdelkrim
Podlaski, Frank
Neuner, Phillippe
Rothacker, Julie
Rafique, Ashique
Dankbar, Nico
Kainz, Peter
Gedig, Erk
Vuyisich, Momchilo
Boozer, Christina
Ly, Nguyen
Toews, Mark
Uren, Aykut
Kalyuzhniy, Oleksandr
Lewis, Kenneth
Chomey, Eugene
Pak, Brian J.
Myszka, David G.
TI A global benchmark study using affinity-based biosensors
SO ANALYTICAL BIOCHEMISTRY
LA English
DT Article
DE Biacore; Kinetics; Optical biosensor; Surface plasmon resonance
ID BIACORE TECHNOLOGY; RATE CONSTANTS; KINETICS; BINDING; USERS
AB To explore the variability in biosensor studies, 150 participants from 20 countries were given the same protein samples and asked to determine kinetic rate constants for the interaction. We chose a protein system that was amenable to analysis using different biosensor platforms as well as by users of different expertise levels. The two proteins (a 50-kDa Fab and a 60-kDa glutathione S-transferase [GST] antigen) form a relatively high-affinity complex, so participants needed to optimize several experimental parameters, including ligand immobilization and regeneration conditions as well as analyte concentrations and injection/dissociation times. Although most participants collected binding responses that could be fit to yield kinetic parameters, the quality of a few data sets could have been improved by optimizing the assay design. Once these outliers were removed, the average reported affinity across the remaining panel of participants was 620 pM with a standard deviation of 980 pM. These results demonstrate that when this biosensor assay was designed and executed appropriately, the reported rate constants were consistent, and independent of which protein was immobilized and which biosensor was used. (C) 2008 Elsevier Inc. All rights reserved.
C1 [Rich, Rebecca L.; Papalia, Giuseppe A.; Myszka, David G.] Univ Utah, Sch Med, Ctr Biomol Interact Anal, Salt Lake City, UT 84132 USA.
[Flynn, Peter J.] KaloBios Pharmaceut, San Francisco, CA 94080 USA.
[Furneisen, Jamie] Schering Plough Biopharma, Palo Alto, CA 94304 USA.
[Quinn, John] Nomadics, Oklahoma City, OK 73104 USA.
[Klein, Joshua S.] CALTECH, Pasadena, CA 91125 USA.
[Katsamba, Phini S.] Columbia Univ, Dept Biochem & Mol Biophys, New York, NY 10032 USA.
[Waddell, M. Brent] St Jude Childrens Hosp, Hartwell Ctr Bioinformat & Biotechnol, Memphis, TN 38105 USA.
[Scott, Michael] Univ Zurich, CH-8057 Zurich, Switzerland.
[Thompson, Joshua; Berlier, Judie; Corry, Schuyler] Mol Probes Invitrogen, Eugene, OR 97402 USA.
[Baltzinger, Mireille; Zeder-Lutzi, Gabrielle] Univ Strasbourg, F-67412 Illkirch Graffenstaden, France.
[Schoenemann, Andreas] Merck KGaA, D-64293 Darmstadt, Germany.
[Clabbers, Anca] Abbott Biores Ctr, Worcester, MA 01605 USA.
[Wieckowski, Sebastien] Univ Strasbourg, Inst Mol & Cellular Biol, F-67084 Strasbourg, France.
[Murphy, Mary M.; Page, Phillip; Ryan, Thomas E.] Reichert, Depew, NY 14043 USA.
[Duffner, Jay; Ganguly, Tanmoy] Momenta Pharmaceut, Cambridge, MA 02142 USA.
[Corbin, John] XOMA US, Emeryville, CA 94608 USA.
[Gautam, Satyen] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore.
[Anderluh, Gregor; Bavdek, Andrej] Univ Ljubljana, Dept Biol, Ljubljana 1000, Slovenia.
[Reichmann, Dana] Weizmann Inst Sci, Dept Biol Chem, IL-76100 Rehovot, Israel.
[Yadav, Satya P.] Cleveland Clin Fdn, Mol Biotechnol Core Lab, Cleveland, OH 44195 USA.
[Hommema, Eric] ThermoFisher Sci, Rockford, IL 61101 USA.
[Pol, Ewa] Biacore GE Healthcare, SE-75450 Uppsala, Sweden.
[Drake, Andrew; Klakamp, Scott] AstraZeneca, Hayward, CA 94545 USA.
[Chapman, Trevor] GlaxoSmithKline Inc, Neurodegenerat Res Dept, Harlow CM19 5AW, Essex, England.
[Kernaghan, Dawn; Miller, Ken] Medimmune Inc, Gaithersburg, MD 20878 USA.
[Schuman, Jason; Lindquist, Kevin; Herlihy, Kara; Murphy, Michael B.] Biacore GE Healthcare, Piscataway, NJ 08854 USA.
[Bohnsack, Richard] Med Coll Wisconsin, Dept Biochem, Milwaukee, WI 53226 USA.
[Andrien, Bruce] Alex Pharmaceut, Cheshire, CT 06410 USA.
[Brandani, Pietro] Appl Biosyst Inc, Foster City, CA 94404 USA.
[Terwey, Danny] DiaDexus, San Francisco, CA 94080 USA.
[Millican, Rohn; Darling, Ryan J.; Wang, Liann; Carter, Quincy; Dotzlaf, Joe] Eli Lilly & Co, Indianapolis, IN 46285 USA.
[Lopez-Sagaseta, Jacinto] Univ Navarra, Ctr Appl Med Res, Lab Thrombosis & Haemostasis, E-31080 Pamplona, Spain.
[Campbell, Islay] EMD Lexigen Res Ctr, Billerica, MA 01821 USA.
[Torreri, Paola] Ist Super Sanita, Dept Cell Biol & Neurosci, I-00161 Rome, Italy.
[Hoos, Sylviane; England, Patrick] Inst Pasteur, Dept Struct Biol & Chem, F-75724 Paris, France.
[Liu, Yang] Georgia State Univ, Dept Chem, Atlanta, GA 30303 USA.
[Abdiche, Yasmina; Malashock, Daniel; Pinkerton, Alanna] Pfizer Rinat Labs, San Francisco, CA 94080 USA.
[Wong, Melanie] PDL BioPharma, Fremont, CA 94555 USA.
[Lafer, Eileen; Hinck, Cynthia] Univ Texas Hlth Sci Ctr San Antonio, Dept Biochem, San Antonio, TX 78229 USA.
[Thompson, Kevin] Akubio, Cambridge CB4 0GJ, England.
[Di Primo, Carmelo] Univ Bordeaux, Inst Europeen Chim & Biol, INSERM, U869, F-33607 Pessac, France.
[Joyce, Alison; Brooks, Jonathan] Wyeth Res, Cambridge, MA 02140 USA.
[Torta, Federico] Univ So Denmark, Dept Biochem & Mol Biol, DK-5230 Odense M, Denmark.
[Hagel, Anne Birgitte Bagge; Krarup, Janus; Pass, Jesper] Novo Nordisk AS, DK-2820 Gentofte, Denmark.
[Ferreira, Monica] Sodertorns Univ Coll, S-14152 Huddinge, Sweden.
[Shikov, Sergei] Temple Univ, Dept Biochem, Philadelphia, PA 19140 USA.
[Mikolajczyk, Malgorzata] US FDA, Bethesda, MD 20892 USA.
[Abe, Yuki] UCL, Dept Biochem Engn, London WC1E 7JE, England.
[Barbato, Gaetano] Merck, I-00040 Rome, Italy.
[Giannetti, Anthony M.] Roche, Palo Alto, CA 94304 USA.
[Krishnamoorthy, Ganeshram; Beusink, Bianca] Univ Twente, NL-7500 AE Enschede, Netherlands.
[Satpaev, Daulet] Agensys, Santa Monica, CA 90404 USA.
[Tsang, Tiffany; Fang, Eric] Novartis, Emeryville, CA 94608 USA.
[Partridge, James; Brohawn, Stephen] MIT, Cambridge, MA 02139 USA.
[Horn, James] No Illinois Univ, De Kalb, IL 60115 USA.
[Pritsch, Otto; Obal, Gonzalo] Pasteur Inst Montevideo, Montevideo, Uruguay.
[Nilapwar, Sanjay] Univ Manchester, Manchester M1 7ND, Lancs, England.
[Busby, Ben] Univ Maryland, Dept Physiol, Baltimore, MD 21201 USA.
[Gutierrez-Sanchez, Gerardo] Univ Georgia, Complex Carbohydrate Res Ctr, Athens, GA 30602 USA.
[Das Gupta, Ruchira] Adnexus Therapeut, Waltham, MA 02453 USA.
[Canepa, Sylvie] Univ Tours, F-37380 Nouzilly, France.
[Witte, Krista] ForteBio, Menlo Pk, CA 94025 USA.
[Nikolovska-Coleska, Zaneta] Univ Michigan, Ann Arbor, MI 48109 USA.
[Cho, Yun Hee] Human Genome Sci, Rockville, MD 20850 USA.
[D'Agata, Roberta] Univ Catania, Dept Chem Sci, I-95125 Catania, Italy.
[Schlick, Kristian] Montana State Univ, Bozeman, MT 59717 USA.
[Calvert, Rosy] GKT Sch Biomed Sci, London SE1 1UL, England.
[Munoz, Eva M.; Hernaiz, Maria Jose] Univ Complutense, Organ & Pharmaceut Chem Dept, E-28040 Madrid, Spain.
[Bravman, Tsafir; Dines, Monica] Biorad Haifa, IL-32000 Haifa, Israel.
[Yang, Min-Hsiang] Acad Sinica, Inst Chem, Taipei 115, Taiwan.
[Puskas, Agnes] Univ Texas Houston, Sch Med, Houston, TX 77030 USA.
[Boni, Erica] Fred Hutchinson Canc Res Ctr, Seattle, WA 98109 USA.
[Li, Jiejin] Natl Inst Med Res UK, Div Mol Struct, London NW7 1AA, England.
[Wear, Martin] Univ Edinburgh, Inst Struct & Mol Biol, Ctr Translat & Chem Biol, Edinburgh EH9 3JR, Midlothian, Scotland.
[Grinberg, Asya] Acceleron Pharma, Cambridge, MA 02139 USA.
[Baardsnes, Jason] Natl Res Council Canada, Biotechnol Res Inst, Montreal, PQ H4P 2R2, Canada.
[Dolezal, Olan] CSIRO, Hlth Sci & Nutr, Parkville, Vic 3052, Australia.
[Gainey, Melicia] Battelle Biomed Res Ctr, Columbus, OH 43201 USA.
[Anderson, Henrik] Attana AB, SE-11347 Stockholm, Sweden.
[Peng, Jinlin; Lewis, Mark] Corning Inc, Corning, NY 14831 USA.
[Spies, Peter] Univ Appl Sci NW Switzerland, Sch Life Sci, Inst Chem & Bioanalyt, CH-4132 Muttenz, Switzerland.
[Trinh, Quyhn; Bibikov, Sergei; Raymond, Jill; Yousef, Mohammed; Chandrasekaran, Vidya; Feng, Yuguo; Emerick, Anne; Mundodo, Suparna; Guimaraes, Rejane; McGirr, Katy] Biorad, Hercules, CA 94547 USA.
[Li, Yue-Ji] Monsanto Co, St Louis, MO 63198 USA.
[Hughes, Heather] Genzyme, Cambridge, MA 02142 USA.
[Mantz, Hubert] Univ Saarland, D-66041 Saarbrucken, Germany.
[Skrabana, Rostislav] SAS, Inst Neuroimmunol, Bratislava 84510, Slovakia.
[Witmer, Mark] Bristol Myers Squibb Co, Princeton, NJ 08543 USA.
[Ballard, Joshua] Array Biopharma, Boulder, CO 80301 USA.
[Martin, Loic] CEA, IBiTecs, Serv Ingn Mol Prot, F-91191 Gif Sur Yvette, France.
[Skladal, Petr] Masaryk Univ, Dept Biochem, CS-61137 Brno, Czech Republic.
[Korza, George] Univ Connecticut, Ctr Hlth, Farmington, CT 06030 USA.
[Laird-Offringa, Ite; Lee, Charlene S.] Univ So Calif, Los Angeles, CA 90033 USA.
[Khadir, Abdelkrim] GeminX Biotechnol, Montreal, PQ H2X 2H7, Canada.
[Podlaski, Frank] Hoffmann La Roche Inc, Nutley, NJ 07110 USA.
[Neuner, Phillippe] IRBM, I-00040 Rome, Italy.
[Rothacker, Julie] Royal Melbourne Hosp, Ludwig Inst Canc Res, Parkville, Vic 3050, Australia.
[Rafique, Ashique] Regeneron Pharmaceut Inc, Tarrytown, NY 10591 USA.
[Dankbar, Nico] Univ Munster, D-48149 Munster, Germany.
[Kainz, Peter] Salzburg Univ, Dept Mol Biol, A-5020 Salzburg, Austria.
[Gedig, Erk] XanTec Bioanalyt, D-48149 Munster, Germany.
[Vuyisich, Momchilo] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
[Boozer, Christina] Lumera, Bothell, WA 98011 USA.
[Ly, Nguyen] Arizona State Univ, Tempe, AZ 85287 USA.
[Toews, Mark] Dyax, Cambridge, MA 02139 USA.
[Uren, Aykut] Georgetown Univ, Med Ctr, Lombardi Canc Ctr, Washington, DC 20057 USA.
[Kalyuzhniy, Oleksandr] Univ Washington, Dept Biochem, Seattle, WA 98195 USA.
[Lewis, Kenneth] Zymogenet Inc, Seattle, WA 98102 USA.
[Chomey, Eugene] Biorad Canada, Edmonton, AB T6R 2W6, Canada.
[Pak, Brian J.] Biorad Canada, Toronto, ON, Canada.
RP Myszka, DG (reprint author), Univ Utah, Sch Med, Ctr Biomol Interact Anal, Salt Lake City, UT 84132 USA.
EM dmyszka@cores.utah.edu
RI Horn, James/B-4011-2009; Li, Jiejin/G-4980-2010; Barbato,
Gaetano/G-4904-2011; Anderluh, Gregor/C-6905-2014; Klakamp,
Scott/D-7738-2014; Skladal, Petr/E-4308-2012; TORRERI,
PAOLA/A-6656-2015; Dolezal, Olan/E-1691-2015
OI Anderluh, Gregor/0000-0002-9916-8465; Klakamp,
Scott/0000-0002-1231-9655; Skladal, Petr/0000-0002-3868-5725; TORRERI,
PAOLA/0000-0002-0488-956X; Katsamba, Phinikoula/0000-0003-3981-1604;
FU NCI NIH HHS [P30 CA051008, P30 CA054174]; NCRR NIH HHS [S10 RR027551]
NR 14
TC 46
Z9 46
U1 5
U2 52
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0003-2697
J9 ANAL BIOCHEM
JI Anal. Biochem.
PD MAR 15
PY 2009
VL 386
IS 2
BP 194
EP 216
DI 10.1016/j.ab.2008.11.021
PG 23
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 413JN
UT WOS:000263789500009
PM 19133223
ER
PT J
AU Martin, NI
Woodward, JJ
Winter, MB
Marletta, MA
AF Martin, Nathaniel I.
Woodward, Joshua J.
Winter, Michael B.
Marletta, Michael A.
TI 4,4-Difluorinated analogues of L-arginine and N-G-hydroxy-L-arginine as
mechanistic probes for nitric oxide synthase
SO BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
LA English
DT Article
DE Nitric oxide synthase; Fluorinated substrate analogues; Mechanistic
probes
ID HEME DOMAIN; ELECTRON-TRANSFER; G-HYDROXYARGININE; TETRAHYDROBIOPTERIN;
SUBSTRATE; NOS; HYDROXYGUANIDINES; CYTOCHROME-P450; PERSPECTIVE;
REACTIVITY
AB 4,4-Difluoro-L-arginine and 4,4-difluoro-N-G-hydroxy-L-arginine were synthesized and shown to be substrates for the inducible isoform of nitric oxide synthase (iNOS). Binding of both fluorinated analogues to the NOS active site was also investigated using a spectral binding assay employing a heme domain construct of the inducible NOS isoform (iNOS(heme)). 4,4-Difluoro-N-G-hydroxy-arginine was found to bind at the NOS active site in a unique manner consistent with a model involving ligation of the Fe-III heme center by the oxygen atom of the N-G-hydroxy moiety. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Woodward, Joshua J.; Winter, Michael B.; Marletta, Michael A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Martin, Nathaniel I.] Univ Utrecht, Dept Med Chem & Chem Biol, NL-3584 CA Utrecht, Netherlands.
[Marletta, Michael A.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Marletta, Michael A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys Biosci, Berkeley, CA 94720 USA.
RP Marletta, MA (reprint author), Univ Calif Berkeley, Dept Chem, 556 Stanley Hall, Berkeley, CA 94720 USA.
EM marletta@berkeley.edu
NR 33
TC 5
Z9 5
U1 0
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-894X
J9 BIOORG MED CHEM LETT
JI Bioorg. Med. Chem. Lett.
PD MAR 15
PY 2009
VL 19
IS 6
BP 1758
EP 1762
DI 10.1016/j.bmcl.2009.01.076
PG 5
WC Chemistry, Medicinal; Chemistry, Organic
SC Pharmacology & Pharmacy; Chemistry
GA 415KX
UT WOS:000263933800050
PM 19230661
ER
PT J
AU Seeliger, MA
Ranjitkar, P
Kasap, C
Shan, YB
Shaw, DE
Shah, NP
Kuriyan, J
Maly, DJ
AF Seeliger, Markus A.
Ranjitkar, Pratistha
Kasap, Corynn
Shan, Yibing
Shaw, David E.
Shah, Neil P.
Kuriyan, John
Maly, Dustin J.
TI Equally Potent Inhibition of c-Src and Abl by Compounds that Recognize
Inactive Kinase Conformations
SO CANCER RESEARCH
LA English
DT Article
ID CHRONIC MYELOGENOUS LEUKEMIA; CHRONIC MYELOID-LEUKEMIA; TYROSINE KINASE;
CRYSTAL-STRUCTURE; IMATINIB RESISTANCE; STI-571 INHIBITION; DOMAIN
MUTATIONS; STRUCTURAL BASIS; BLAST CRISIS; COMPLEX
AB Imatinib is an inhibitor of the Abl tyrosine kinase domain that is effective in the treatment of chronic myelogenic leukemia. Although imatinib binds tightly to the Abl kinase domain, its affinity for the closely related kinase domain of c-Src: is at least 2,000-fold lower. Imatinib recognition requires a specific inactive conformation of the kinase domain, in which a conserved Asp-Phe-Gly (DFG) motif is flipped with respect to the active conformation. The inability of c-Src to readily adopt this flipped DFG conformation was thought to underlie the selectivity of imatinib for Abl over c-Src. Here, we present a series of inhibitors (DSA compounds) that are based on the core scaffold of imatinib but which bind with equally high potency to c-Src: and Abl. The DSA compounds bind to c-Src in the DFG-flipped conformation, as confirmed by crystal structures and kinetic analysis. The origin of the high affinity of these compounds for c-Src is suggested by the fact that they also inhibit clinically relevant Abl variants bearing mutations in a structural element, the P-loop, that normally interacts with the phosphate groups of ATP but is folded over a substructure of imatinib in Abl. Importantly, several of the DSA compounds block the growth of Ba/F3 cells harboring imatinib-resistant BCR-ABL mutants, including the Thr315Ile "gatekeeper" mutation, but do not suppress the growth of parental Ba/F3 cells. [Cancer Res 2009;69(6):2384-92]
C1 [Ranjitkar, Pratistha; Maly, Dustin J.] Univ Washington, Dept Chem, Seattle, WA 98195 USA.
[Kuriyan, John] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Kasap, Corynn; Shah, Neil P.] Univ Calif San Francisco, Sch Med, Dept Med, Div Hematol Oncol, San Francisco, CA 94143 USA.
[Shaw, David E.] Columbia Univ, Ctr Computat Biol & Bioinformat, New York, NY USA.
RP Maly, DJ (reprint author), Univ Washington, Dept Chem, Box 351700, Seattle, WA 98195 USA.
EM kuriyan@berkeley.edu; maly@chem.washington.edu
RI Seeliger, Markus/D-6409-2013
FU NIH [GM-086858, 5K99GM080097]; University of Washington; Leukemia and
Lymphoma Society; Director, Office of Science, Office of Basic Energy
Sciences, U.S. Department of Energy [DE-AC02-05CH11231]
FX Grant support: NIH R01 grant GM-086858, University of Washington (D.J.
Maly), and NIH 5K99GM080097 (M.A. Seeliger). J. Kuriyan acknowledges
funding from the Leukemia and Lymphoma Society. The Advanced Light
Source is supported by the Director, Office of Science, Office of Basic
Energy Sciences, U.S. Department of Energy under contract
DE-AC02-05CH11231.
NR 34
TC 74
Z9 74
U1 1
U2 11
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD MAR 15
PY 2009
VL 69
IS 6
BP 2384
EP 2392
DI 10.1158/0008-5472.CAN-08-3953
PG 9
WC Oncology
SC Oncology
GA 424BU
UT WOS:000264541300031
PM 19276351
ER
PT J
AU Nakamae, H
Wilbur, DS
Hamlin, DK
Thakar, MS
Santos, EB
Fisher, DR
Kenoyer, AL
Pagel, JM
Press, OW
Storb, R
Sandmaier, BM
AF Nakamae, Hirohisa
Wilbur, D. Scott
Hamlin, Donald K.
Thakar, Monica S.
Santos, Erlinda B.
Fisher, Darrell R.
Kenoyer, Aimee L.
Pagel, John M.
Press, Oliver W.
Storb, Rainer
Sandmaier, Brenda M.
TI Biodistributions, Myelosuppression, and Toxicities in Mice Treated with
an Anti-CD45 Antibody Labeled with the alpha-Emitting Radionuclides
Bismuth-213 or Astatine-211
SO CANCER RESEARCH
LA English
DT Article
ID HEMATOPOIETIC-CELL TRANSPLANTATION; TOTAL-BODY IRRADIATION;
I-131-ANTI-CD45 ANTIBODY; MONOCLONAL-ANTIBODIES; ACUTE-LEUKEMIA;
CYCLOPHOSPHAMIDE; CANCER; RADIOIMMUNOTHERAPY; MOLECULES; F(AB')2
AB We previously investigated the potential of targeted radiotherapy using a bismuth-213 ((213)Bi)-labeled anti-CD45 antibody to replace total body irradiation as conditioning for hematopoietic cell transplantation in a canine model. Although this approach allowed sustained marrow engraftment, limited availability, high cost, and short half-life of (213)Bi induced us to investigate an alternative et-emitting radionuclide, astatine-211 ((211)At), for the same application. Biodistribution and toxicity studies were conducted with conjugates of the anti-murine CD45 antibody 30F11 with either (213)Bi or (211)At. Mice were injected with 2 to 50 mu Ci on 10 mu g or 20 mu Ci on 2 or 40 mu g of 30F11 conjugate. Biodistribution studies showed that the spleen contained the highest concentration of radioactivity, ranging from 167 +/- 23% to 417 +/- 109% injected dose/gram (% ID/g) after injection of the (211)At conjugate and 45 +/- 9% to 166 +/- 11% ID/g after injection of the (213)Bi conjugate. The higher concentrations observed for (211)At-labeled 30F11 were due to its longer half-life, which permitted better localization of isotope to the spleen before decay. (211)At was more effective at producing myelosuppression for the same quantity of injected radioactivity. All mice injected with 20 or 50 mu Ci (211)At, but none with the same quantities of (213)Bi, had lethal myeloablation. Severe reversible acute hepatic toxicity occurred with 50 mu Ci (213)Bi, but not with lower doses of (213)Bi or with any dose of (211)At. No renal toxicity occurred with either radionuclide. The data suggest that smaller quantities of (211)At-labeled anti-CD45 antibody are sufficient to achieve myelosuppression and myeloablation with less nonhematologic toxicity compared with (213)Bi-labeled antibody. [Cancer Res 2009;69(6):2408-15]
C1 [Nakamae, Hirohisa; Thakar, Monica S.; Santos, Erlinda B.; Kenoyer, Aimee L.; Pagel, John M.; Press, Oliver W.; Storb, Rainer; Sandmaier, Brenda M.] Fred Hutchinson Canc Res Ctr, Div Clin Res, Seattle, WA 98109 USA.
[Wilbur, D. Scott; Hamlin, Donald K.] Univ Washington, Dept Radiat Oncol, Seattle, WA 98195 USA.
[Thakar, Monica S.] Univ Washington, Dept Pediat, Seattle, WA 98195 USA.
[Pagel, John M.; Press, Oliver W.; Storb, Rainer; Sandmaier, Brenda M.] Univ Washington, Dept Med, Seattle, WA USA.
[Press, Oliver W.] Univ Washington, Dept Biol Struct, Seattle, WA 98195 USA.
[Fisher, Darrell R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Sandmaier, BM (reprint author), Fred Hutchinson Canc Res Ctr, Div Clin Res, 1100 Fairview Ave N,Mail Stop D1-100,POB 19024, Seattle, WA 98109 USA.
EM bsandmai@fhcrc.org
FU NIH [CA118940, CA015704, CA109663, CA095448]; Frederick Kullman and
Penny E. Petersen Memorial Foundations; Graduate School of Medicine,
Osaka City University, Osaka, Japan; Lymphoma Research Foundation; Damon
Runyon Cancer Foundation
FX Grant support: NIH grants CA118940, CA015704, CA109663, and CA095448 and
Frederick Kullman and Penny E. Petersen Memorial Foundations. H. Nakamae
was funded by the Graduate School of Medicine, Osaka City University,
Osaka, Japan. J.M. Pagel is supported by Career Development Awards from
the Lymphoma Research Foundation and the Damon Runyon Cancer Foundation.
NR 26
TC 19
Z9 19
U1 2
U2 4
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
J9 CANCER RES
JI Cancer Res.
PD MAR 15
PY 2009
VL 69
IS 6
BP 2408
EP 2415
DI 10.1158/0008-5472.CAN-08-4363
PG 8
WC Oncology
SC Oncology
GA 424BU
UT WOS:000264541300034
PM 19244101
ER
PT J
AU Kaminker, PG
Kim, SH
Desprez, PY
Campisi, J
AF Kaminker, Patrick G.
Kim, Sahn-Ho
Desprez, Pierre-Yves
Campisi, Judith
TI A novel form of the telomere-associated protein TIN2 localizes to the
nuclear matrix
SO CELL CYCLE
LA English
DT Article
DE alternative splicing; human fibroblasts; human mammary epithelial cells;
telomerase; TRF1; TRF2; tankyrase
ID MAMMARY EPITHELIAL-CELLS; MAMMALIAN TELOMERES; COMPLEX; LENGTH; TRF1;
ORGANIZATION; SENESCENCE; GROWTH; POT1; FIBROBLASTS
AB Telomeres are specialized heterochromatin at the ends of linear chromosomes. Telomeres are crucial for maintaining genome stability and play important roles in cellular senescence and tumor biology. Six core proteins-TRF1, TRF2, TIN2, POT1, TPP1 and Rap1 (termed the telosome or shelterin complex)-regulate telomere structure and function. One of these proteins, TIN2, regulates telomere length and structure indirectly by interacting with TRF1, TRF2 and TPP1, but no direct function has been attributed to TIN2. Here we present evidence for a TIN2 isoform (TIN2L) that differs from the originally described TIN2 isoform (TIN2S) in two ways: TIN2L contains an additional 97 amino acids, and TIN2L associates strongly with the nuclear matrix. Stringent salt and detergent conditions failed to extract TIN2L from the nuclear matrix, despite removing other telomere components, including TIN2S. In human mammary epithelial cells, each isoform showed a distinct nuclear distribution both as a function of cell cycle position and telomere length. Our results suggest a dual role for TIN2 in mediating the function of the shelterin complex and tethering telomeres to the nuclear matrix.
C1 [Desprez, Pierre-Yves] Calif Pacific Med Ctr, Canc Res Inst, San Francisco, CA 94107 USA.
[Kaminker, Patrick G.; Desprez, Pierre-Yves; Campisi, Judith] Buck Inst Age Res, Novato, CA USA.
[Kaminker, Patrick G.; Kim, Sahn-Ho; Campisi, Judith] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Desprez, PY (reprint author), Calif Pacific Med Ctr, Canc Res Inst, 475 Brannan St,Suite 220, San Francisco, CA 94107 USA.
EM pydesprez@cpmcri.org
FU National Institutes of Health [AG09909, AG017242]
FX We thank Dr. Martha Stampfer (Lawrence Berkeley National Laboratory,
Berkeley, CA) for providing 184A1 human mammary epithelial cells. This
work was supported by grants AG09909 and AG017242 from the National
Institutes of Health.
NR 49
TC 17
Z9 20
U1 0
U2 1
PU LANDES BIOSCIENCE
PI AUSTIN
PA 1002 WEST AVENUE, 2ND FLOOR, AUSTIN, TX 78701 USA
SN 1538-4101
J9 CELL CYCLE
JI Cell Cycle
PD MAR 15
PY 2009
VL 8
IS 6
BP 931
EP 939
DI 10.4161/cc.8.6.7941
PG 9
WC Cell Biology
SC Cell Biology
GA 426KG
UT WOS:000264706600024
PM 19229133
ER
PT J
AU Sharp, JL
Borkowski, JJ
Schmoyer, D
Daly, DS
Purvine, S
Cannon, WR
Hurst, GB
AF Sharp, Julia L.
Borkowski, John J.
Schmoyer, Denise
Daly, Don S.
Purvine, Samuel
Cannon, William R.
Hurst, Gregory B.
TI Statistically appraising process quality of affinity isolation
experiments
SO COMPUTATIONAL STATISTICS & DATA ANALYSIS
LA English
DT Article
ID PROTEIN IDENTIFICATIONS; PROTEOMICS
AB Quality affinity isolation experiments are necessary to identify valid protein-protein interactions. Biological error, processing error, and random variability can reduce the quality of an experiment, and thus hinder the identification of protein interaction pairs. Appraising affinity isolation assay quality is essential to inferring protein associations. An important step of the assay is the mass spectrometric identification of proteins. To evaluate this step, a known mixture of proteins is processed through a mass spectrometer as a quality control mixture. If the mass spectrometer yields unexpected results, the process is currently qualitatively evaluated, tuned, and reset. Statistical quality control (SQC) procedures, including the use of cumulative sum, the individual measurement, and moving range charts are implemented to analyze the stability of the mass spectrometric analysis. The SQC measures presented can assist in establishing preliminary control limits to identify an out-of-control process and investigate assignable causes for shifts in the process mean in real time. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Sharp, Julia L.] Clemson Univ, Dept Appl Econ & Stat, Clemson, SC 29634 USA.
[Borkowski, John J.] Montana State Univ, Bozeman, MT 59717 USA.
[Schmoyer, Denise; Hurst, Gregory B.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Daly, Don S.; Purvine, Samuel; Cannon, William R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Sharp, JL (reprint author), Clemson Univ, Dept Appl Econ & Stat, 237 Barre Hall, Clemson, SC 29634 USA.
EM jsharp@clemson.edu
RI Cannon, William/K-8411-2014
OI Cannon, William/0000-0003-3789-7889
FU Genomics; U.S. Department of Energy Office of Advanced Scientific
Computing Research [47901]; Office of Biological and Environmental
Research [41966, 43930]; U.S. Department of Energy [DE-AC05-76RL01830,
DE-AC05-00OR22725]
FX We wish to thank Trish K. Lankford at Oak Ridge National Laboratory for
her expert technical assistance.
NR 14
TC 1
Z9 1
U1 2
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-9473
J9 COMPUT STAT DATA AN
JI Comput. Stat. Data Anal.
PD MAR 15
PY 2009
VL 53
IS 5
BP 1720
EP 1726
DI 10.1016/j.csda.2008.05.011
PG 7
WC Computer Science, Interdisciplinary Applications; Statistics &
Probability
SC Computer Science; Mathematics
GA 427AH
UT WOS:000264751000018
ER
PT J
AU Hellweg, S
Demou, E
Bruzzi, R
Meijer, A
Rosenbaum, RK
Huijbregts, MAJ
McKone, TE
AF Hellweg, Stefanie
Demou, Evangelia
Bruzzi, Raffaella
Meijer, Arien
Rosenbaum, Ralph K.
Huijbregts, Mark A. J.
McKone, Thomas E.
TI Integrating Human Indoor Air Pollutant Exposure within Life Cycle Impact
Assessment
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Review
ID HUMAN HEALTH DAMAGES; ORGANIC-COMPOUNDS; WORKER EXPOSURE; INTAKE
FRACTION; TRICHLOROETHYLENE; VENTILATION; MODEL; ROOM;
PERCHLOROETHYLENE; RADIOACTIVITY
AB Neglecting health effects from indoor pollutant emissions and exposure, as currently done in Life Cycle Assessment (LCA), may result in product or process optimizations at the expense of workers' or consumers' health. To close this gap, methods for considering indoor exposure to chemicals are needed to complement the methods for outdoor human exposure assessment already in use. This paper summarizes the work of an international expert group on the integration of human indoor and outdoor exposure in LCA, within the UNEP/SETAC Life Cycle Initiative. A new methodological framework is proposed for a general procedure to include human-health effects from indoor exposure in LCA. Exposure models from occupational hygiene and household indoor air quality studies and practices are critically reviewed and recommendations are provided on the appropriateness of various model alternatives in the context of LCA. A single-compartment box model is recommended for use as a default in LCA, enabling one to screen occupational and household exposures consistent with the existing models to assess outdoor emission in a multimedia environment An initial set of model parameter values was collected. The comparison between indoor and outdoor human exposure per unit of emission shows that for many pollutants, intake per unit of indoor emission may be several orders of magnitude higher than for outdoor emissions. It is concluded that indoor exposure should be routinely addressed within LCA.
C1 [Hellweg, Stefanie; Demou, Evangelia] ETH, Inst Environm Engn, CH-8093 Zurich, Switzerland.
[Bruzzi, Raffaella] Univ Lausanne, Inst Occupat Hlth, CH-1015 Lausanne, Switzerland.
[Meijer, Arien] Delft Univ Technol, Urban & Mobil Studies, OTB Res Inst Housing, NL-2600 AA Delft, Netherlands.
[Rosenbaum, Ralph K.] Ecole Polytech, Dept Chem Engn, CIRAIG, Montreal, PQ H3C 3A7, Canada.
[Huijbregts, Mark A. J.] Radboud Univ Nijmegen, Dept Environm Sci, NL-6500 GL Nijmegen, Netherlands.
[McKone, Thomas E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Hellweg, S (reprint author), ETH, Inst Environm Engn, CH-8093 Zurich, Switzerland.
EM stefanie.hellweg@ifu.baug.ethz.ch
RI Huijbregts, Mark/B-8971-2011;
OI Hellweg, Stefanie/0000-0001-6376-9878; Rosenbaum,
Ralph/0000-0002-7620-1568; Demou, Evangelia/0000-0001-8616-525X
NR 61
TC 67
Z9 68
U1 1
U2 33
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 MAR 15
PY 2009
VL 43
IS 6
BP 1670
EP 1679
DI 10.1021/es8018176
PG 10
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 417WI
UT WOS:000264108800007
PM 19368156
ER
PT J
AU Kaplan, PO
Decarolis, J
Thorneloe, S
AF Kaplan, P. Ozge
Decarolis, Joseph
Thorneloe, Susan
TI Is It Better To Burn or Bury Waste for Clean Electricity Generation?
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID MUNICIPAL SOLID-WASTE; DECISION-SUPPORT TOOL; LABORATORY-SCALE
LANDFILLS; LIFE-CYCLE ASSESSMENT; ENERGY PROJECTS; MANAGEMENT;
COMBUSTION; COMPONENTS; INVENTORY; MODEL
AB The use of municipal solid Waste (MSW) to generate electricity through landfill-gas-to-energy (LFGTE) and waste-to-energy (WTE) projects represents roughly 14% of U.S. nonhydro renewable electricity generation. Although various aspects of LFGTE and WTE have been analyzed in the literature, this paper is the first to present a comprehensive set of life-cycle emission factors per unit of electricity generated for these energy recovery options. In addition, sensitivity analysis is conducted on key inputs (e.g., efficiency of the WTE plant, landfill gas management schedules, oxidation rate, and waste composition) to quantify the variability in the resultant life-cycle emissions estimates. While methane from landfills results from the anaerobic breakdown of biogenic materials, the energy derived from WTE results from the combustion of both biogenic and fossil materials. The greenhouse gas emissions for WTE ranges from 0.4 to 1.5 MTCO(2)e/MWh, whereas the most agressive LFGTE scenerio results in 2.3 MTCO(2)e/MWh. WTE also produces lower NO, emissions than LFGTE, whereas SO, emissions depend on the specific configurations of WTE and LFGTE.
C1 [Decarolis, Joseph] US EPA, Natl Risk Management Res Lab, Res Triangle Pk, NC 27711 USA.
[Thorneloe, Susan] N Carolina State Univ, Dept Civil Engn, Raleigh, NC 27695 USA.
RP Kaplan, PO (reprint author), US EPA, Oak Ridge Inst Res & Educ Postdoctoral Fellowship, Oak Ridge, TN USA.
EM kaplan.ozge@epa.gov
RI DeCarolis, Joseph/F-4869-2013;
OI DeCarolis, Joseph/0000-0003-4677-4522
NR 28
TC 34
Z9 34
U1 1
U2 36
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 MAR 15
PY 2009
VL 43
IS 6
BP 1711
EP 1717
DI 10.1021/es802395e
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 417WI
UT WOS:000264108800012
PM 19368161
ER
PT J
AU Price, PN
Sohn, MD
Lacommare, KSH
McWilliams, JA
AF Price, Phillip N.
Sohn, Michael D.
Lacommare, Kristina S. H.
McWilliams, Jennifer A.
TI Framework for Evaluating Anthrax Risk in Buildings
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID BACILLUS-ANTHRACIS; QUANTITATIVE PCR; SURFACE; INHALATION; INFECTION;
SPORES
AB If Bacillus anthracis (BA), the organism that causes anthrax, is known or suspected to have contaminated a building, a critical decision is what level of contamination is unacceptable. This decision has two components: (1) what is the relationship between the degree of contamination and the risk to occupants, (2) and what is an acceptable risk to occupants? These lead to a further decision: (3) how many samples must be taken to determine whether a building is unacceptably contaminated? We discuss existing data that bear on these questions, and introduce a nomogram that can be used to investigate the relationship between risk of contracting anthrax, the surface concentration of BA, the probability of detection, and the number of samples needed to ensure detection with a given degree of certainty. The same approach could be used for other agents that are dangerous due to resuspension of deposited particles.
C1 [Price, Phillip N.; Sohn, Michael D.; Lacommare, Kristina S. H.; McWilliams, Jennifer A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Price, PN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA.
EM pnprice@lbl.gov
FU Office of Chemical and Biological Countermeasures of the Science and
Technology Directorate of the Department of Homeland Security; U.S.
Department of Energy [DE-AC02-705CH11231]
FX This work was supported in part by the Office of Chemical and Biological
Countermeasures of the Science and Technology Directorate of the
Department of Homeland Security and performed under U.S. Department of
Energy Contract No. DE-AC02-705CH11231.
NR 13
TC 12
Z9 12
U1 0
U2 4
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 MAR 15
PY 2009
VL 43
IS 6
BP 1783
EP 1787
DI 10.1021/es802506p
PG 5
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 417WI
UT WOS:000264108800023
PM 19368172
ER
PT J
AU Michalsen, MM
Peacock, AD
Smithgal, AN
White, DC
Spain, AM
Sanchez-Rosario, Y
Krumholz, LR
Kelly, SD
Kemner, KM
Mckinley, J
Heald, SM
Bogle, MA
Watson, DB
Istok, JD
AF Michalsen, Mandy M.
Peacock, Aaron D.
Smithgal, Amanda N.
White, David C.
Spain, Anne M.
Sanchez-Rosario, Yamil
Krumholz, Lee R.
Kelly, Shelly D.
Kemner, Kenneth M.
Mckinley, James
Heald, Steve M.
Bogle, Mary Anna
Watson, David B.
Istok, Jonathan D.
TI Treatment of Nitric Acid-, U(VI)-, and Tc(VII)-Contaminated Groundwater
in Intermediate-Scale Physical Models of an In Situ Biobarrier
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID CONTAMINATED SUBSURFACE SEDIMENTS; PHOSPHOLIPID FATTY-ACID; REAL-TIME
PCR; MICROBIAL COMMUNITIES; RIBOSOMAL-RNA; SP-NOV; FE(III)-REDUCING
BACTERIA; REDUCING CONDITIONS; POROUS-MEDIUM; SAND COLUMNS
AB Metal and hydrogen ion acidity and extreme nitrate concentratons at Department of Energy legacy waste sites pose challenges for successful in situ U and Tc bioimmobilization. In this study, we investigated a potential in situ biobarrier configuration designed to neutralize pH and remove nitrate and radionuclides from nitric acid-, U-, and Tc-contaminated groundwater for over 21 months. Ethanol additions to groundwater flowing through native sediment and crushed limestone effectively increased pH (from 4.7 to 6.9), promoted removal of 116 mM nitrate, increased sediment biomass, and immobilized 94% of total U. Increased groundwater pH and significant U removal was also observed in a control column that received no added ethanol. Sequential extraction and XANES analyses showed U in this sediment to be solid-associated U(VI), and EXAFS analysis results were consistent with uranyl orthophosphate (UO(2))(3)(PO(4))(2)center dot 4H(2)O(s), which may control U solubility in this system. Ratios of respiratory ubiquinones to menaquinones and copies of dissimilatory nitrite reductase genes, nirS and nirK, were at least 1 order of magnitude greater in the ethanol-stimulated system compared to the control, indicating that ethanol addition promoted growth of a largely denitrifying microbial community. Sediment 16S rRNA gene clone libraries showed that Betaproteobacteria were dominant (89%) near the source of influent acidic groundwater, whereas members of Gamma- and Alphaproteobacteria and Bacteroidetes increased along the flow path as pH increased and nitrate concentrations decreased, indicating spatial shifts in community composition as a function of pH and nitrate concentrations. Results of this study support the utility of biobarriers for treating acidic radionuclide- and nitrate-contaminated groundwater.
C1 [Michalsen, Mandy M.] USA, Corps Engineers, Environm Engn & Technol Sect, Seattle, WA 98134 USA.
[Peacock, Aaron D.; Smithgal, Amanda N.; White, David C.] Univ Tennessee, Ctr Biomarker Anal, Knoxville, TN 37932 USA.
[Spain, Anne M.; Sanchez-Rosario, Yamil; Krumholz, Lee R.] Univ Oklahoma, Dept Bot & Microbiol, Norman, OK 73019 USA.
[Mckinley, James] Pacific NW Natl Lab, William R Wiley Lab, Richland, WA 99352 USA.
[Heald, Steve M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Bogle, Mary Anna; Watson, David B.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Istok, Jonathan D.] Oregon State Univ, Dept Civil Engn, Corvallis, OR 97331 USA.
RP Michalsen, MM (reprint author), USA, Corps Engineers, Environm Engn & Technol Sect, Seattle, WA 98134 USA.
EM mandy.m.michalsen@usace.army.mil
RI ID, MRCAT/G-7586-2011; Watson, David/C-3256-2016
OI Watson, David/0000-0002-4972-4136
FU DOE Office of Science (OS) [FG03-02ER63443, DE-FC02-96ER62278,
FG02-OOER62986, FSU F48792, DE-AC02-06CH11357]; Office of Biological and
Environmental Research (BER); Environmental Remediation Sciences Program
(ERSP); Integrative Graduate Education and Research Traineeship (IGERT);
National Science Foundation; NSERC
FX This research was supported by Grants FG03-02ER63443, DE-FC02-96ER62278,
and FG02-OOER62986 (subcontract FSU F48792) from the DOE Office of
Science (OS), Office of Biological and Environmental Research (BER),
Environmental Remediation Sciences Program (ERSP) (formerly Natural and
Accelerated Bioremediation Research Program). Additional support was
provided by Integrative Graduate Education and Research Traineeship
(IGERT) grant from the National Science Foundation. The Advanced Photon
Source (APS) is supported by the DOE OS, Office of Basic Energy Sciences
under Contract DE-AC02-06CH11357. The Materials Research Collaborative
Access Team (MR-CAT) operations are supported by the US DOE OS and the
MR-CAT member institutions. The PNC/XOR facilities are supported by the
US DOE OS, the APS, a major facilities access grant from NSERC, the
University of Washington, and Simon Fraser University. We also thank
Jesse Jones, Robert Laughman, Ben Garcia, Ellie Seiko, Melora Park, and
Mohammad Azizian for their help in field and laboratory work.
NR 84
TC 12
Z9 12
U1 1
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAR 15
PY 2009
VL 43
IS 6
BP 1952
EP 1961
DI 10.1021/es8012485
PG 10
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 417WI
UT WOS:000264108800049
PM 19368198
ER
PT J
AU Wadia, C
Alivisatos, AP
Kammen, DM
AF Wadia, Cyrus
Alivisatos, A. Paul
Kammen, Daniel M.
TI Materials Availability Expands the Opportunity for Large-Scale
Photovoltaics Deployment
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID SOLAR-CELLS; ENERGY; TIME; RESOURCES; EMISSIONS; ECONOMICS; SILICON;
TECHNOLOGY; PLANET
AB Solar photovoltaics have great promise for a low-carbon future but remain expensive relative to other technologies. Greatly increased penetration of photovoltaics into global energy markets requires an expansion in attention from designs of high-performance to those that can deliver significantly lower cost per kilowatt-hour. To evaluate a new set of technical and economic performance targets, we examine material extraction costs and supply constraints for 23 promising semiconducting materials. Twelve composite materials systems were found to have the capacity to meet or exceed the annual worldwide electricity consumption of 17 000 TWh, of which nine have the potential for a significant cost reduction over crystalline silicon. We identify a large material extraction cost (cents/watt) gap between leading thin film materials and a number of unconventional solar cell candidates including FeS(2), CuO, and Zn(3)P(2). We find that devices performing below 10% power conversion efficiencies deliver the same lifetime energy output as those above 20% when a 3/4 material reduction is achieved. Here, we develop a roadmap emphasizing low-cost alternatives that could become a dominant new approach for photovoltaics research and deployment
C1 [Wadia, Cyrus; Kammen, Daniel M.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
[Wadia, Cyrus; Alivisatos, A. Paul] 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.
[Alivisatos, A. Paul] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Kammen, Daniel M.] Univ Calif Berkeley, Goldman Sch Publ Policy, Berkeley, CA 94720 USA.
[Kammen, Daniel M.] Univ Calif Berkeley, Renewable & Appropriate Energy Lab, Berkeley, CA 94720 USA.
RP Kammen, DM (reprint author), Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
EM kammen@berkeley.edu
RI Alivisatos , Paul /N-8863-2015
OI Alivisatos , Paul /0000-0001-6895-9048
FU Energy Foundation, the Karsten Family Foundation Endowment of the
Renewable and Appropriate Energy Laboratory; Class of 1935
FX C.W. thanks The Environmental Protection Agency for the EPA STAR
Fellowship and the Alivisatos Laboratory at U.C. Berkeley for continued
support in the scientific exploration of new material systems. This work
was supported by the Energy Foundation, the Karsten Family Foundation
Endowment of the Renewable and Appropriate Energy Laboratory, and the
Class of 1935. We thank Dr. Becca Jones, Dr. Ilan Gur, Dr. Neil Fromer,
Naim Darghouth, Dr. Yue Wu, Dr. Joseph Luther, Dr. Brian Wright, and Dr.
Eicke Webber for helpful discussions.
NR 41
TC 579
Z9 587
U1 33
U2 272
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 MAR 15
PY 2009
VL 43
IS 6
BP 2072
EP 2077
DI 10.1021/es8019534
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 417WI
UT WOS:000264108800067
PM 19368216
ER
PT J
AU Stubbs, JE
Veblen, LA
Elbert, DC
Zachara, JM
Davis, JA
Veblen, DR
AF Stubbs, Joanne E.
Veblen, Linda A.
Elbert, David C.
Zachara, John M.
Davis, James A.
Veblen, David R.
TI Newly recognized hosts for uranium in the Hanford Site vadose zone
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID RARE-EARTH-ELEMENTS; PLASMA-MASS-SPECTROMETRY; ZIRCONIUM-PHOSPHATE;
GEOLOGICAL-MATERIALS; EXCHANGE BEHAVIOR; ION-EXCHANGE; URANYL IONS;
SORPTION; SEDIMENTS; U(VI)
AB Uranium contaminated sediments from the U.S. Department of Energy's Hanford Site have been investigated using electron microscopy. Six classes of solid hosts for uranium were identified. Preliminary sediment characterization was carried out using optical petrography, and electron microprobe analysis (EMPA) was used to locate materials that host uranium. All of the hosts are fine-grained and intergrown with other materials at spatial scales smaller than the analytical volume of the electron microprobe. A focused ion beam (FIB) was used to prepare electron-transparent specimens of each host for the transmission electron microscope (TEM). The hosts were identified as: (1) metatorbernite [Cu(UO(2))(2)(PO(4))(2)center dot 8H(2)O]; (2) coatings on sediment clasts comprised mainly of phyllosilicates; (3) an amorphous zirconium (oxyhydr)oxide found in clast coatings; (4) amorphous and poorly crystalline materials that line voids within basalt lithic fragments; (5) amorphous palagonite surrounding fragments of basaltic glass; and (6) Fe- and Mn-oxides. These findings demonstrate the effectiveness of combining EMPA, FIB, and TEM to identify solid-phase contaminant hosts. Furthermore, they highlight the complexity of U geochemistry in the Hanford vadose zone, and illustrate the importance of microscopic transport in controlling the fate of contaminant metals in the environment. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Stubbs, Joanne E.; Veblen, Linda A.; Elbert, David C.; Veblen, David R.] Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA.
[Veblen, Linda A.] US Nucl Regulatory Commiss, Rockville, MD 20852 USA.
[Zachara, John M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Davis, James A.] US Geol Survey, Menlo Pk, CA 94025 USA.
RP Stubbs, JE (reprint author), Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA.
EM jstubbs1@jhu.edu
RI Stubbs, Joanne/F-9710-2013
OI Stubbs, Joanne/0000-0002-8509-2009
FU USDOE BES [DE-FG01-06ER06-01]; U.S. Nuclear Regulatory Commission
[JCN-N6375, JCN-Y6462]
FX Funding support was provided by USDOE BES Grant # DE-FG01-06ER06-01 and
the U.S. Nuclear Regulatory Commission Contract # JCN-N6375 and
JCN-Y6462. EMPA, FIB work, and TEM were conducted at Johns Hopkins
University. Chemical digestion and ICP-MS analysis for total Zr and U
concentrations were conducted at the Washington State University
GeoAnalytical Lab. We are grateful to our Associate Editor, Dr. Donald
Sparks, and to Dr. Jeffrey Catalano and two anonymous reviewers, for
their thoughtful comments and suggestions.
NR 48
TC 52
Z9 52
U1 4
U2 34
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD MAR 15
PY 2009
VL 73
IS 6
BP 1563
EP 1576
DI 10.1016/j.gca.2008.12.004
PG 14
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 419ZQ
UT WOS:000264258600003
ER
PT J
AU Froberg, M
Hanson, PJ
Trumbore, SE
Swanston, CW
Todd, DE
AF Froberg, Mats
Hanson, Paul J.
Trumbore, Susan E.
Swanston, Christopher W.
Todd, Donald E.
TI Flux of carbon from C-14-enriched leaf litter throughout a forest soil
mesocosm
SO GEODERMA
LA English
DT Article
DE Soil organic carbon; Dissolved organic carbon; Radiocarbon; Forest soil
ID DISSOLVED ORGANIC-MATTER; RESPIRATION; NITROGEN; STABILIZATION;
THROUGHFALL; DEPOSITION; DYNAMICS; INPUT; C-14; CO2
AB The role of DOC for the build-up of soil organic carbon pools is still not well known, but it is thought to play a role in the transport of carbon to a greater depth where it becomes more stable. The aim of this study was to elucidate within-year dynamics of carbon transport from litter to the O (Oe and Oa) and A horizons. Mesocosms with constructed soil profiles were used to study dynamics of C transport from C-14-enriched (about 1000 parts per thousand) leaf litter to the Oe/Oa and A horizons as well as the mineralization of leaf litter. The mesocosms were placed in the field for 17 months during which time fluxes and C-14 content of DOC and CO2 were measured. Changes in C-14 in leaf litter and bulk soil C pools were also recorded. Significant simultaneous release and immobilization of DOC occurring in both the O and A horizons was hypothesized. Contrary to our hypothesis, DOC released from the labeled Oi horizon was not retained within the Oe/Oa layer. DOC originating in the unlabeled Oe/Oa layer was also released for transport. Extensive retention of DOC occurred in the A horizon. DOC leaching from A horizon consisted of a mix of DOC from different sources, with a main fraction originating in the A horizon and a smaller fraction leached from the overlaying horizons. The C and C-14 budget for the litter layer also indicated a surprisingly large amount of carbon with ambient Delta C-14 signature to be respired from this layer. Data for this site also suggested significant contributions from throughfall to dissolved organic carbon (DOC) transport into and respiration from the litter layer. The results from this study showed that DOC retention was low in the O horizon and therefore not important for the O horizon carbon budget. In the A horizon DOC retention was extensive, but annual DOC input was small compared to C stocks and therefore not important for changes in soil C on an annual timescale. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Froberg, Mats; Hanson, Paul J.; Todd, Donald E.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Trumbore, Susan E.] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA.
[Swanston, Christopher W.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
RP Froberg, M (reprint author), SLU, Dept Soil & Environm, POB 7001, SE-75007 Uppsala, Sweden.
EM mats.froberg@sml.slu.se
RI Hanson, Paul J./D-8069-2011; Froberg, Mats/E-8741-2012; Trumbore,
Susan/B-1948-2013
OI Hanson, Paul J./0000-0001-7293-3561;
FU U.S. Department of Energy (DOE); Office of Science, Biological and
Environmental Research; UT-Battelle; LLC [DE-AC05-00OR22725]; University
of California; LLNL [W-7405-EngA8]
FX Funding for the EBIS project was provided by the U.S. Department of
Energy (DOE), Office of Science, Biological and Environmental Research,
as a part of the Terrestrial Carbon Processes Program. Oak Ridge
National Laboratory (ORNL) is managed by UT-Battelle, LLC, for the DOE
under contract DE-AC05-00OR22725. Work at Lawrence Livermore National
Laboratory (LLNL) was performed under the auspices of the DOE by the
University of California, LLNL, under Contract no. W-7405-EngA8. We wish
to thank Tom Guilderson, Lawrence Livermore National Laboratory, for
analyses of 14C.
NR 24
TC 15
Z9 16
U1 1
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0016-7061
J9 GEODERMA
JI Geoderma
PD MAR 15
PY 2009
VL 149
IS 3-4
BP 181
EP 188
DI 10.1016/j.geoderma.2008.11.029
PG 8
WC Soil Science
SC Agriculture
GA 421LJ
UT WOS:000264360100001
ER
PT J
AU Calton, MA
Ersoy, BA
Zhang, SM
Kane, JP
Malloy, MJ
Pullinger, CR
Bromberg, Y
Pennacchio, LA
Dent, R
McPherson, R
Ahituv, N
Vaisse, C
AF Calton, Melissa A.
Ersoy, Baran A.
Zhang, Sumei
Kane, John P.
Malloy, Mary J.
Pullinger, Clive R.
Bromberg, Yana
Pennacchio, Len A.
Dent, Robert
McPherson, Ruth
Ahituv, Nadav
Vaisse, Christian
TI Association of functionally significant Melanocortin-4 but not
Melanocortin-3 receptor mutations with severe adult obesity in a large
North American case-control study
SO HUMAN MOLECULAR GENETICS
LA English
DT Article
ID MORBID-OBESITY; GENE VARIANTS; BODY-MASS; METABOLIC SYNDROME; CHILDHOOD
OBESITY; ONSET OBESITY; FAT MASS; PROTEIN; MC4R; POLYMORPHISMS
AB Functionally significant heterozygous mutations in the Melanocortin-4 receptor (MC4R) have been implicated in 2.5% of early onset obesity cases in European cohorts. The role of mutations in this gene in severely obese adults, particularly in smaller North American patient cohorts, has been less convincing. More recently, it has been proposed that mutations in a phylogenetically and physiologically related receptor, the Melanocortin-3 receptor (MC3R), could also be a cause of severe human obesity. The objectives of this study were to determine if mutations impairing the function of MC4R or MC3R were associated with severe obesity in North American adults. We studied MC4R and MC3R mutations detected in a total of 1821 adults (889 severely obese and 932 lean controls) from two cohorts. We systematically and comparatively evaluated the functional consequences of all mutations found in both MC4R and MC3R. The total prevalence of rare MC4R variants in severely obese North American adults was 2.25% (CI(95%): 1.44-3.47) compared with 0.64% (CI(95%): 0.26-1.43) in lean controls (P < 0.005). After classification of functional consequence, the prevalence of MC4R mutations with functional alterations was significantly greater when compared with controls (P < 0.005). In contrast, the prevalence of rare MC3R variants was not significantly increased in severely obese adults [0.67% (CI(95%): 0.27-1.50) versus 0.32% (CI(95%): 0.06-0.99)] (P = 0.332). Our results confirm that mutations in MC4R are a significant cause of severe obesity, extending this finding to North American adults. However, our data suggest that MC3R mutations are not associated with severe obesity in this population.
C1 [Calton, Melissa A.; Ersoy, Baran A.; Zhang, Sumei; Vaisse, Christian] Univ Calif San Francisco, Ctr Diabet, San Francisco, CA 94143 USA.
[Kane, John P.; Malloy, Mary J.; Pullinger, Clive R.] Univ Calif San Francisco, Cardiovasc Res Inst, San Francisco, CA 94143 USA.
[Kane, John P.; Malloy, Mary J.] Univ Calif San Francisco, Dept Med, San Francisco, CA 94143 USA.
[Kane, John P.] Univ Calif San Francisco, Dept Biochem & Biophys, San Francisco, CA 94143 USA.
[Pullinger, Clive R.] Univ Calif San Francisco, Dept Physiol Nursing, San Francisco, CA 94143 USA.
[Bromberg, Yana] Columbia Univ, Dept Biochem & Mol Biophys, New York, NY 10032 USA.
[Bromberg, Yana] Columbia Univ, Ctr Computat Biol & Bioinformat C2B2, New York, NY 10032 USA.
[Pennacchio, Len A.; Ahituv, Nadav] US DOE, Joint Genome Inst, Walnut Creek, CA 94720 USA.
[Pennacchio, Len A.; Ahituv, Nadav] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
[Dent, Robert; McPherson, Ruth] Univ Ottawa, Div Cardiol, Inst Heart, Ottawa, ON K1Y 4W7, Canada.
[Ahituv, Nadav] Univ Calif San Francisco, Dept Biopharmaceut Sci, San Francisco, CA 94143 USA.
[Ahituv, Nadav] Univ Calif San Francisco, Inst Human Genet, San Francisco, CA 94143 USA.
RP Vaisse, C (reprint author), Univ Calif San Francisco, Ctr Diabet, 513 Parnassus Ave,HSW 1113, San Francisco, CA 94143 USA.
EM vaisse@diabetes.ucsf.edu
RI Vaisse, Christian/F-1067-2011; Ersoy, Baran/F-8192-2012;
OI Ahituv, Nadav/0000-0002-7434-8144; Bromberg, Yana/0000-0002-8351-0844
FU NIDDK NIH HHS [DK60540, DK068152, R01 DK060540]; NIGMS NIH HHS [GM61390]
NR 44
TC 66
Z9 68
U1 2
U2 3
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0964-6906
J9 HUM MOL GENET
JI Hum. Mol. Genet.
PD MAR 15
PY 2009
VL 18
IS 6
BP 1140
EP 1147
DI 10.1093/hmg/ddn431
PG 8
WC Biochemistry & Molecular Biology; Genetics & Heredity
SC Biochemistry & Molecular Biology; Genetics & Heredity
GA 413XT
UT WOS:000263828100015
PM 19091795
ER
PT J
AU Mantic, V
AF Mantic, V.
TI Interface crack onset at a circular cylindrical inclusion under a remote
transverse tension. Application of a coupled stress and energy criterion
SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
LA English
DT Article
DE Inclusion debond; Interface crack; Crack nucleation; Strength; Fracture
toughness; Finite fracture mechanics; Size effect; Scaling; Brittleness
number; Composites
ID FINITE FRACTURE-MECHANICS; SINGLE-FIBER TEST; MICROMECHANICAL VIEW;
POLYMERIC COMPOSITES; VOID NUCLEATION; MODE MIXITY; MATRIX; FAILURE;
COMPRESSION; STRENGTH
AB The plane strain problem of a single circular cylindrical inclusion embedded in an unbounded matrix subjected to a remote uniform uniaxial transverse tension is studied. A theoretical model for the simultaneous prediction of the initial size of a crack originated at the inclusion/matrix interface (or equivalently the initial polar angle of this crack) and of the critical remote tension required to originate this crack is developed. Isotropic and linear elastic behaviour of both materials, with the inclusion being stiffer than the matrix, is assumed. The interface is considered to be strong (providing continuity of displacements and tractions across the interface surface) and brittle. The model developed is based on the classical analytic solutions for the above-mentioned inclusion problem without and with a crack situated at the inclusion/matrix interface and a recently introduced coupled stress and energy criterion of failure by Leguillon [Eur. J. Mech. A/Solids 21 (2002) 61-72]. A new dimensionless structural parameter gamma, depending on bimaterial and interface properties together with the inclusion radius a, which plays a key role in characterizing the interface crack onset, is introduced. Asymptotic behaviour of the predicted critical remote tension and the interface crack length/polar angle at the onset are characterized for small and large values of gamma and a. A size effect inherent to this problem is predicted and analysed. The following asymptotic characteristics of this size effect are noteworthy: (i) for small inclusion radii a, the polar angle of the crack at onset is constant (independent of a), whereas the critical remote tension increases with decreasing a, being inversely proportional to the square root of a; (ii) for large inclusion radii a, the length of the crack at onset and the critical remote tension are approximately constant. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Mantic, V.] Univ Seville, Sch Engn, Grp Elast & Strength Mat, Seville 41092, Spain.
RP Mantic, V (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM mantic@esi.us.es
RI Mantic, Vladislav/G-1111-2010
OI Mantic, Vladislav/0000-0002-7569-7442
FU Spanish Ministry of Education, Culture and Sport [TRA2005-06764]; Junta
de Andalucia [TEP1207]; Oak Ridge National Laboratory (ORNL)
FX The author thanks Prof. Federico Paris for his motivation and continuous
support of this work. Comments by Prof. Federico Paris and Dr. Enrique
Graciani have substantially improved the final version of the
manuscript. Stimulating discussions with Dr. Elena Correa and use of her
Mathematica code of the Toya's solution are also gratefully
acknowledged. This work was supported by the Spanish Ministry of
Education, Culture and Sport through Project TRA2005-06764, and by the
Junta de Andalucia, through the Project of Excellence TEP1207. Part of
the present work was performed during a research stay at the Oak Ridge
National Laboratory (ORNL) in 2008. The support of this stay by Dr. Len
Cray (ORNL) and by the Junta de Andalucia (Estancia de excelencia) is
also gratefully acknowledged.
NR 46
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U1 1
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0020-7683
J9 INT J SOLIDS STRUCT
JI Int. J. Solids Struct.
PD MAR 15
PY 2009
VL 46
IS 6
BP 1287
EP 1304
DI 10.1016/j.ijsolstr.2008.10.036
PG 18
WC Mechanics
SC Mechanics
GA 417AU
UT WOS:000264047700002
ER
PT J
AU Anderson, GIR
Wei, HX
Porter, NA
Harnchana, V
Brown, AP
Brydson, RMD
Arena, DA
Dvorak, J
Han, XF
Marrows, CH
AF Anderson, G. I. R.
Wei, H. -X.
Porter, N. A.
Harnchana, V.
Brown, A. P.
Brydson, R. M. D.
Arena, D. A.
Dvorak, J.
Han, X. -F.
Marrows, C. H.
TI Changes in the layer roughness and crystallography during the annealing
of CoFeB/MgO/CoFeB magnetic tunnel junctions
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE annealing; boron alloys; cobalt alloys; crystallography; interface
roughness; iron alloys; magnesium compounds; spin polarised transport;
transmission electron microscopy; tunnelling magnetoresistance
ID ROOM-TEMPERATURE; MAGNETORESISTANCE; SCATTERING; COFEB
AB Annealing is necessary to achieve giant tunneling magnetoresistance (TMR) values in sputtered CoFeB/MgO/CoFeB magnetic tunnel junctions (MTJs). In this study three complementary techniques were used to study the resulting changes in junction microstructure. The as-deposited TMR was modest, 5%, but rose to 101% after annealing at 325 degrees C for 1 h, corresponding to the tunneling spin polarization rising from 16% to 58%. Soft x-ray resonant magnetic scattering showed a roughening of the magnetic interfaces of the MTJ free layer, confirmed by transmission electron microscopy, which also showed the changes in the CoFeB and MgO to a lattice-matched polycrystalline form.
C1 [Anderson, G. I. R.; Porter, N. A.; Marrows, C. H.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Wei, H. -X.; Han, X. -F.] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China.
[Harnchana, V.; Brown, A. P.; Brydson, R. M. D.] Univ Leeds, Inst Mat Res, Leeds LS2 9JT, W Yorkshire, England.
[Arena, D. A.] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA.
[Dvorak, J.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA.
RP Anderson, GIR (reprint author), Cambridge Display Technol, Madingley Rise,Madingley Rd, Cambridge CB3 0TX, England.
EM c.h.marrows@leeds.ac.uk
RI Marrows, Christopher/D-7980-2011;
OI Brown, Andy/0000-0001-9692-2154; Marrows,
Christopher/0000-0003-4812-6393
FU Chinese MOST [2006CB932200]; National Natural Science Foundation of
China [10874225, 50721001]; UK EPSRC; Royal Society; Department of
Energy, Office of Basic Energy Sciences
FX We would like to thank A. T. Hindmarch, C. J. Kinane, S. Roy, and S. K.
Sinha for useful discussions. We are grateful to the UK EPSRC, the Royal
Society, and the Department of Energy, Office of Basic Energy Sciences
for support, as well as the partial support by the Chinese MOST fund No.
2006CB932200, National Natural Science Foundation of China fund Nos.
10874225 and 50721001.
NR 22
TC 5
Z9 5
U1 1
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 063904
DI 10.1063/1.3081652
PG 3
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000116
ER
PT J
AU Bowden, NS
Bernstein, A
Dazeley, S
Svoboda, R
Misner, A
Palmer, T
AF Bowden, N. S.
Bernstein, A.
Dazeley, S.
Svoboda, R.
Misner, A.
Palmer, T.
TI Observation of the isotopic evolution of pressurized water reactor fuel
using an antineutrino detector
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE neutrino detection; nuclear materials safeguards
ID NEUTRINO; SPECTRA; POWER
AB By operating an antineutrino detector of simple design during several fuel cycles, we observed long term changes in antineutrino flux that result from the isotopic evolution of a commercial pressurized water reactor. Measurements made with simple antineutrino detectors of this kind offer an alternative means for verifying fissile inventories at reactors, as part of International Atomic Energy Agency and other reactor safeguards regimes.
C1 [Bernstein, A.; Dazeley, S.; Svoboda, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bowden, N. S.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Svoboda, R.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Misner, A.; Palmer, T.] Oregon State Univ, Dept Nucl Engn, Corvallis, OR 97331 USA.
RP Bowden, NS (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA.
EM nbowden@llnl.gov
OI Bowden, Nathaniel/0000-0002-6115-0956
NR 17
TC 17
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U1 1
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 064902
DI 10.1063/1.3080251
PG 8
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000183
ER
PT J
AU Hong, S
Klug, JA
Park, M
Imre, A
Bedzyk, MJ
No, K
Petford-Long, A
Auciello, O
AF Hong, Seungbum
Klug, Jeffrey A.
Park, Moonkyu
Imre, Alexandra
Bedzyk, Michael J.
No, Kwangsoo
Petford-Long, Amanda
Auciello, Orlando
TI Nanoscale piezoresponse studies of ferroelectric domains in epitaxial
BiFeO3 nanostructures
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Integrated Ferroelectrics
CY JUN, 2008
CL Biopolis, Singapore, SINGAPORE
HO Biopolis
ID THIN-FILMS; MICROSCOPE
AB We report the dependence of the ferroelectric domain configuration and switching behavior on the shape (square versus round) of epitaxial BiFeO3 (BFO) nanostructures. We fabricated (001) oriented BFO(120 nm)/SrRuO3(SRO, 125 nm) film layers on (001) SrTiO3 single crystals by rf magnetron sputter deposition, and patterned them to square (500x500 nm(2)) and round (502 nm in diameter) shaped nanostructures by focused ion-beam lithography. The surface morphology and the crystalline structure of the nanostructures were characterized by scanning electron microscopy and x-ray diffraction, respectively, while the domain configuration was investigated using piezoelectric force microscopy. We found that the square-shaped nanostructures exhibit a single variant domain configuration aligned along the [(1) over bar1 (1) over bar] direction, whereas the round- shaped nanostructures exhibit seven variants of domain configuration along the [(1) over bar1 (1) over bar], [1 (1) over bar(1) over bar], [11 (1) over bar1], [111], [(1) over bar 11], [1(1) over bar1] and [(11) over bar1] directions. Moreover, local d(33) piezoelectric coefficient measurements showed hysteresis loops with a strong displacement in the voltage axis (strong imprint) for the square- shaped nanostructures, while the round- shaped ones exhibited more symmetric loops. These findings have critical implications for the development of nanocapacitors for gigabyte to terabyte nonvolatile ferroelectric memories. (c) 2009 American Institute of Physics. [DOI: 10.1063/1.3055412]
C1 [Hong, Seungbum; Klug, Jeffrey A.; Park, Moonkyu; Imre, Alexandra; Bedzyk, Michael J.; Petford-Long, Amanda; Auciello, Orlando] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Imre, Alexandra; Auciello, Orlando] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Klug, Jeffrey A.; Bedzyk, Michael J.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA.
[Bedzyk, Michael J.] Northwestern Univ, Dept Mat Sci, Evanston, IL 60208 USA.
[Bedzyk, Michael J.] Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA.
[No, Kwangsoo] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea.
RP Hong, S (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM hong@anl.gov
RI Bedzyk, Michael/B-7503-2009; Joshi-Imre, Alexandra/A-2912-2010; No,
Kwangsoo/G-4891-2010; No, Kwangsoo/C-1983-2011; Hong,
Seungbum/B-7708-2009; Klug, Jeffrey/A-3653-2013; Bedzyk,
Michael/K-6903-2013; Petford-Long, Amanda/P-6026-2014
OI Joshi-Imre, Alexandra/0000-0002-4271-1623; Hong,
Seungbum/0000-0002-2667-1983; Petford-Long, Amanda/0000-0002-3154-8090
NR 13
TC 28
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U1 1
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 061619
DI 10.1063/1.3055412
PG 5
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000020
ER
PT J
AU Merkulov, IA
Klein, KL
Simpson, ML
AF Merkulov, I. A.
Klein, K. L.
Simpson, M. L.
TI A synergetic description of carbon nanofiber growth
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE carbon; catalysts; chemical potential; chemical vapour deposition;
nanofibres; nanotechnology
ID CHEMICAL-VAPOR-DEPOSITION; CATALYTIC GROWTH; NANOTUBES; FILAMENTS;
MECHANISM; SURFACES; NUCLEATION
AB A self-consistent mathematical model of the growth of carbon nanofiber in a catalytic chemical vapor deposition process has been developed. This model includes the balance equation for carbon transport through the catalyst and the equation for mechanical and chemical balance in the catalyst-nanofiber system. It is demonstrated that the most important parameter that governs the nanofiber growth behavior is the difference in the carbon chemical potentials in the catalyst and nanofiber. This parameter determines the carbon transport to the nanofiber. It is also responsible for the catalyst shape and topology of the interface between the catalyst and nanofiber. The solutions of the model are in qualitative agreement with numerous experimental results. The model can be used in designing experiments and explaining existing results. It leaves the opportunity for more a precise and complex mathematical calculation of different aspects of the growth process.
C1 [Merkulov, I. A.] Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia.
[Merkulov, I. A.; Klein, K. L.; Simpson, M. L.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Knoxville, TN 37831 USA.
[Klein, K. L.; Simpson, M. L.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Knoxville, TN 37831 USA.
[Klein, K. L.; Simpson, M. L.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Merkulov, IA (reprint author), Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia.
EM imp@mail.ornl.gov
RI Simpson, Michael/A-8410-2011
OI Simpson, Michael/0000-0002-3933-3457
FU Division of Materials Sciences and Engineering Program of DOE Office of
Science
FX We would like to thank V. I. Merkulov and A. V. Melechko for fruitful
discussion, G. Y. Merkulova, and M. Fuentes- Cabrera for the text
revision. We acknowledge support from the Division of Materials Sciences
and Engineering Program of DOE Office of Science. A portion of this
research was conducted at the Center of Nanophase Materials Sciences,
which is sponsored at Oak Ridge National Laboratory by the Division of
Scientific User Facilities (DOE).
NR 33
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U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 064305
DI 10.1063/1.3093687
PG 8
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000147
ER
PT J
AU Nguyen, DN
Ashworth, SP
Willis, JO
AF Nguyen, Doan N.
Ashworth, Stephen P.
Willis, Jeffrey O.
TI Numerical analysis of ac loss in bifilar stacks and coils of ion beam
assisted deposition YBCO coated conductors
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE barium compounds; finite element analysis; high-temperature
superconductors; ion beam assisted deposition; superconducting coils;
superconducting tapes; yttrium compounds
ID FAULT CURRENT LIMITER; HIGH-TEMPERATURE SUPERCONDUCTORS; FEM ANALYSIS;
HTS
AB In this paper we present a finite element model using the commercial COMSOL (R) software package for calculating the ac loss in bifilar stacks of high temperature superconducting tape. In the model, the current-voltage relationship characterizing the superconducting properties is assumed to follow a power law. The calculations were performed for infinite bifilar stacks with different values of layer-to-layer separation D. With appropriate settings for the boundary conditions, the numerical results agree well with the analytical data obtained from a recently proposed model [J. R. Clem, Phys. Rev. B 77, 134506 (2008)]. The numerical approach was also used to investigate the end effects in a bifilar stack to answer the following question: how many layers away from the end of a stack are required before the environment of a given layer is identical to that in an infinite stack? We find that the answer to this question depends strongly on the value of D. Based on this study, a model for calculating the ac loss in bifilar noninductively wound coils with a finite number of turns is proposed.
C1 [Nguyen, Doan N.; Ashworth, Stephen P.; Willis, Jeffrey O.] Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA.
RP Nguyen, DN (reprint author), Los Alamos Natl Lab, Superconduct Technol Ctr, Los Alamos, NM 87545 USA.
RI Nguyen, Doan/F-3148-2010
NR 23
TC 10
Z9 10
U1 1
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 063917
DI 10.1063/1.3100042
PG 7
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000129
ER
PT J
AU Singh, D
Timofeeva, E
Yu, W
Routbort, J
France, D
Smith, D
Lopez-Cepero, JM
AF Singh, D.
Timofeeva, E.
Yu, W.
Routbort, J.
France, D.
Smith, D.
Lopez-Cepero, J. M.
TI An investigation of silicon carbide-water nanofluid for heat transfer
applications
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE heat transfer; nanofluidics; nanoparticles; optical microscopy; silicon
compounds; thermal conductivity; viscosity; water; wide band gap
semiconductors; X-ray scattering
ID EFFECTIVE THERMAL-CONDUCTIVITY; BROWNIAN-MOTION; NANOPARTICLES;
SUSPENSION; PARTICLES; MODEL
AB Thermal conductivity and mechanical effects of silicon carbide nanoparticles uniformly dispersed in water were investigated. Mean size of SiC particles was 170 nm with a polydispersity of similar to 30% as determined from small-angle x-ray scattering and dynamic light scattering techniques. Room temperature viscosity of the nanofluids ranged from 2 to 3 cP for nominal nanoparticle loadings 4-7 vol %. On a normalized basis with water, viscosity of the nanofluids did not significantly change with the test temperature up to 85 degrees C. Optical microscopy of diluted nanofluid showed no agglomeration of the nanoparticles. Thermal conductivity of the fluid was measured as a function of the nominal nanoparticle loading ranging from 1 to 7 vol %. Enhancement in thermal conductivity was approximately 28% over that of water at 7 vol % particle loadings under ambient conditions. Enhancements in thermal conductivities for the nanofluids with varying nanoparticle loadings were maintained at test temperatures up to 70 degrees C. Results of thermal conductivity have been rationalized based on the existing theories of heat transfer in fluids. Implications of using this nanofluid for engineering cooling applications are discussed.
C1 [Singh, D.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Timofeeva, E.; Yu, W.; Routbort, J.; France, D.; Smith, D.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Lopez-Cepero, J. M.] Univ Seville, Seville 41080, Spain.
RP Singh, D (reprint author), Argonne Natl Lab, Nucl Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM dsingh@anl.gov
RI Timofeeva, Elena/E-6391-2010
FU U. S. Department of Energy [DE-AC02-06CH11357]
FX This work was sponsored by Michelin American Research and Development
Corporation and by the U. S. Department of Energy under Contract No.
DE-AC02-06CH11357 at Argonne National Laboratory, managed by the
University of Chicago Argonne LLC (USA). Use of the Advanced Photon
Source was supported by the Office of Science, Office of Basic Energy
Sciences, U. S. Department of Energy under Contract No.
DE-AC02-06CH11357. Assistance from Dr. D. J. Cookson in performing SAXS
run is highly appreciated. Authors are grateful to Dr. Steve Hartline of
Saint Gobain for providing the SiC-water nanofluid formulations for this
study.
NR 25
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U1 1
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 064306
DI 10.1063/1.3082094
PG 6
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000148
ER
PT J
AU Teixeira, FS
Salvadori, MC
Cattani, M
Brown, IG
AF Teixeira, F. S.
Salvadori, M. C.
Cattani, M.
Brown, I. G.
TI Gold-implanted shallow conducting layers in polymethylmethacrylate
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE atomic force microscopy; buried layers; conducting polymers; electrical
conductivity; electron beam lithography; gold; ion implantation; Monte
Carlo methods; plasma materials processing; polymer films; Rutherford
backscattering; thin films
ID ELECTRON-BEAM LITHOGRAPHY; DYNAMIC COMPOSITION CHANGES; POLY(METHYL
METHACRYLATE); OPTICAL-PROPERTIES; ION-IMPLANTATION; SIMULATION;
DEPOSITION; POLYMERS; NANOPARTICLES; PERCOLATION
AB PMMA (polymethylmethacrylate) was ion implanted with gold at very low energy and over a range of different doses using a filtered cathodic arc metal plasma system. A nanometer scale conducting layer was formed, fully buried below the polymer surface at low implantation dose, and evolving to include a gold surface layer as the dose was increased. Depth profiles of the implanted material were calculated using the Dynamic TRIM computer simulation program. The electrical conductivity of the gold-implanted PMMA was measured in situ as a function of dose. Samples formed at a number of different doses were subsequently characterized by Rutherford backscattering spectrometry, and test patterns were formed on the polymer by electron beam lithography. Lithographic patterns were imaged by atomic force microscopy and demonstrated that the contrast properties of the lithography were well maintained in the surface-modified PMMA.
C1 [Teixeira, F. S.] Univ Sao Paulo, Polytech Sch, BR-05508900 Sao Paulo, Brazil.
[Salvadori, M. C.; Cattani, M.] Univ Sao Paulo, Inst Phys, BR-05315970 Sao Paulo, Brazil.
[Brown, I. G.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Teixeira, FS (reprint author), Univ Sao Paulo, Polytech Sch, Ave Prof Luciano Gualberto,Travessa R 158, BR-05508900 Sao Paulo, Brazil.
EM mcsalvadori@if.usp.br
RI Salvadori, Maria Cecilia/A-9379-2013; Teixeira, Fernanda/A-9395-2013;
Cattani, Mauro/N-9749-2013
FU Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Conselho
Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
FX This work was supported by the Fundacao de Amparo a Pesquisa do Estado
de Sao Paulo (FAPESP) and the Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq), Brazil. We thank the Laboratory of
Integrated Systems of the Polytechnic School for the use of their HP
4140B facility for electrical measurements, and "Laboratorio de
Materiais e Feixes Ionicos" of the Institute of Physics, University of
Sao Paulo, for the RBS analysis. We are grateful to the Institute of Ion
Beam Physics and Materials Research of the Forschungszentrum
Dresden-Rossendorf, Germany, for making available to us their TRIDYN_FZR
computer simulation code.
NR 40
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U1 2
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 064313
DI 10.1063/1.3088874
PG 5
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000155
ER
PT J
AU Wong-Ng, W
Yang, Z
Hu, YF
Huang, Q
Lowhorn, N
Otani, M
Kaduk, JA
Li, Q
AF Wong-Ng, W.
Yang, Z.
Hu, Y. F.
Huang, Q.
Lowhorn, N.
Otani, M.
Kaduk, J. A.
Li, Q.
TI Thermoelectric and structural characterization of Ba2Ho(Cu3-xCox)O6+y
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE barium compounds; crystal structure; electrical resistivity;
high-temperature effects; holmium compounds; Seebeck effect; thermal
conductivity; thermal stability
ID SUBSTITUTED YBA2CU3O7-DELTA; SUPERCONDUCTIVITY; MERIT; BA2YCU3O7-DELTA;
PEROVSKITE; ANOMALIES; CA3CO2O6; FIGURE; OXIDES; CHAINS
AB The search for thermoelectric materials for power generation and for solid-state cooling has led to increased interest of layered cobalt-containing oxides because of their thermal stability at high temperature and their desirable thermoelectric properties. This paper examines the effect of substitution of Co in the layered pervoskite Ba2Ho(Cu3-xCox)O6+y (x=0.3, 0.4, 0.5, 0.6, and 1.0). Structural analysis using the neutron Rietveld refinement technique reveals that when x <= 0.4, Co substitutes mainly for Cu in the "chain sites" of the Ba2Ho(Cu3-xCox)O6+y structure. As x>0.4, Co also enters in the Cu-O "plane sites" as well. The thermoelectric properties of polycrystalline Ba2Ho(Cu3-xCox)O6+y samples were studied in the temperature range of 10-390 K. In general, as the cobalt content x increases, the resistivity and Seebeck coefficient of these samples increase while the thermal conductivity decreases. Among the five Ba2Ho(Cu3-xCox)O6+y compositions, the x=0.4 member gives the highest figure of merit ZT of approximate to 0.02 at approximately 270 K.
C1 [Wong-Ng, W.; Yang, Z.; Huang, Q.; Lowhorn, N.; Otani, M.] NIST, Div Ceram, Mat Sci & Engn Lab, Gaithersburg, MD 20899 USA.
[Hu, Y. F.; Li, Q.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Kaduk, J. A.] INEOS Res Ctr, Naperville, IL 60566 USA.
RP Wong-Ng, W (reprint author), NIST, Div Ceram, Mat Sci & Engn Lab, Gaithersburg, MD 20899 USA.
EM winnie.wong-ng@nist.gov
NR 39
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U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 063706
DI 10.1063/1.3078810
PG 7
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000100
ER
PT J
AU Xie, Y
Han, LB
An, Q
Zheng, LQ
Luo, SN
AF Xie, Yun
Han, Li-Bo
An, Qi
Zheng, Lianqing
Luo, Sheng-Nian
TI Release melting of shock-loaded single crystal Cu
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE copper; heat transfer; melting; molecular dynamics method; shock wave
effects; shock waves
ID SIMULATION
AB We investigate the melting of shock-loaded single crystal Cu during release from solid shock states with molecular dynamics simulations. Cu is subjected to planar shock loading along < 100 > with a piston velocity (u(p)) of 2-3 km s(-1) into the plastic regime. For u(p)>= 2.5 km s(-1) (above 170 GPa), release melting occurs continuously, and a sustained fully released state (liquid) can be achieved. The shocked crystal may undergo noticeable superheating before release melting. The release path can be regarded as an isentrope regardless of release melting.
C1 [Xie, Yun; Han, Li-Bo; An, Qi] Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China.
[Zheng, Lianqing] Florida State Univ, Inst Mol Biophys, Tallahassee, FL 32306 USA.
[Luo, Sheng-Nian] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA.
RP Xie, Y (reprint author), Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China.
EM sluo@lanl.gov
RI Zheng, Lianqing/B-4171-2008; An, Qi/G-4517-2011; Luo, Sheng-Nian
/D-2257-2010; An, Qi/I-6985-2012
OI Luo, Sheng-Nian /0000-0002-7538-0541;
FU NSF of China [40574043, 40537033]; U.S. Department of Energy
[DE-AC5206NA25396]
FX X.Y. and L.B.H. acknowledge the support from NSF of China Grant Nos.
40574043 and 40537033. L.Z. is grateful for W. Yang's support. S.N.L. is
partially supported by an LDRD-DR project at LANL. LANL is under the
auspices of U.S. Department of Energy under contract No.
DE-AC5206NA25396.
NR 18
TC 8
Z9 8
U1 1
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 066103
DI 10.1063/1.3099597
PG 3
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000202
ER
PT J
AU Yao, K
Auciello, O
AF Yao, Kui
Auciello, Orlando
TI Preface to Special Topic: Selected Papers from the 20th International
Symposium on Integrated Ferroelectrics, Biopolis, Singapore, June 2008
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Editorial Material
DE ferroelectric storage; ferroelectric thin films; random-access storage
C1 [Yao, Kui] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore.
[Auciello, Orlando] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Yao, K (reprint author), ASTAR, Inst Mat Res & Engn, 3 Res Link, Singapore 117602, Singapore.
EM k-yao@imre.a-star.edu.sg
RI Yao, Kui/K-7804-2012
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAR 15
PY 2009
VL 105
IS 6
AR 061501
DI 10.1063/1.3085784
PG 1
WC Physics, Applied
SC Physics
GA 427IW
UT WOS:000264774000001
ER
PT J
AU Reysenbach, AL
Hamamura, N
Podar, M
Griffiths, E
Ferreira, S
Hochstein, R
Heidelberg, J
Johnson, J
Mead, D
Pohorille, A
Sarmiento, M
Schweighofer, K
Seshadri, R
Voytek, MA
AF Reysenbach, Anna-Louise
Hamamura, N.
Podar, M.
Griffiths, E.
Ferreira, S.
Hochstein, R.
Heidelberg, J.
Johnson, J.
Mead, D.
Pohorille, A.
Sarmiento, M.
Schweighofer, K.
Seshadri, R.
Voytek, M. A.
TI Complete and Draft Genome Sequences of Six Members of the Aquificales
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID BACTERIUM AQUIFEX-AEOLICUS; SP NOV.; SULFURIHYDROGENIBIUM-AZORENSE;
MICROBIAL GENOMES
AB The Aquificales are widespread in marine and terrestrial hydrothermal environments. Here, we report the complete and draft genome sequences of six new members of the Aquificales: two marine species, Persephonella marina strain EX-H1 and Hydrogenivirga strain 128-5-R1 (from the East Pacific Rise, 9 degrees 50.3'N, 104 degrees 17.5'W, and the Eastern Lau Spreading Center, 176 degrees 11.5'W, 20 degrees 45.8'S, respectively), and four terrestrial isolates, Sulfurihydrogenibium azorense strain Az-Fu1, Sulfurihydrogenibium yellowstonense strain SS-5, and Sulfurihydrogenibium strain Y03AOP1 (from Furnas, Azores, Portugal, and Calcite Springs and Obsidian Pool in Yellowstone National Park, United States, respectively), and the only thermoacidophilic isolate, Hydrogenobaculum strain Y04AAS1 (from a stream adjacent to Obsidian Pool). Significant differences among the different species exist that include nitrogen metabolism, hydrogen utilization, chemotaxis, and signal transduction, providing insights into their ecological niche adaptations.
C1 [Reysenbach, Anna-Louise; Hamamura, N.] Portland State Univ, Dept Biol, Portland, OR 97201 USA.
[Podar, M.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Griffiths, E.] McMaster Univ, Dept Biochem & Biomed Sci, Hamilton, ON L8S 4L8, Canada.
[Voytek, M. A.] US Geol Survey, Reston, VA 20192 USA.
[Seshadri, R.] Synth Genom Inc, La Jolla, CA 92037 USA.
[Schweighofer, K.] Affymetrix Corp, Santa Clara, CA 95051 USA.
[Ferreira, S.; Johnson, J.; Sarmiento, M.] J Craig Venter Inst, Rockville, MD 20850 USA.
[Hochstein, R.] Montana State Univ, Bozeman, MT 59715 USA.
[Heidelberg, J.] Univ So Calif, Wrigley Inst Environm Studies, Dept Biol Sci, Avalon, CA 90704 USA.
[Mead, D.] Lucigen Corp, Middleton, WI 53562 USA.
[Pohorille, A.] NASA, Ames Res Ctr, Exobiol Branch, Moffett Field, CA 94025 USA.
RP Reysenbach, AL (reprint author), Portland State Univ, Dept Biol, Portland, OR 97201 USA.
EM reysenbacha@pdx.edu
RI Hamamura, Natsuko/D-8837-2013;
OI Heidelberg, John/0000-0003-0673-3224; Podar, Mircea/0000-0003-2776-0205
FU NSF [0236856]; The Gordon and Betty Moore Foundation; Joint Genome
Institute; GBMF
FX We thank Jennifer Meneghin, Karl Rustenholtz, Isabel Ferreira, and all
those who assisted in many different ways to see these genome sequences
be made available to the scientific community. Many thanks in particular
to Nikos Kyrpides and many others at JGI who were instrumental in
facilitating the deposition of the data into IMG and data analysis.
Thanks to Loren Hauser at Oak Ridge National Laboratory and the JGI
annotation team for their help. We thank Jason Miller and Granger Sutton
and their team for the ongoing development and maintenance of the Celera
Assembler and related tools. We thank Robert Friedman for his leadership
of the GBMF-funded project. We acknowledge the J. Craig Venter Institute
(JCVI) Joint Technology Center, under the leadership of Yu-Hui Rogers,
for producing the genomic libraries and the sequence data.
NR 10
TC 48
Z9 520
U1 0
U2 11
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 15
PY 2009
VL 191
IS 6
BP 1992
EP 1993
DI 10.1128/JB.01645-08
PG 2
WC Microbiology
SC Microbiology
GA 413VB
UT WOS:000263819500029
PM 19136599
ER
PT J
AU Lopez-Esteban, S
Gutierrez-Gonzalez, CF
Gremillard, L
Saiz, E
Tomsia, AP
AF Lopez-Esteban, S.
Gutierrez-Gonzalez, C. F.
Gremillard, L.
Saiz, E.
Tomsia, A. P.
TI Interfaces in graded coatings on titanium-based implants
SO JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
LA English
DT Article
DE glass coating; enameling; titanium alloy; calcium phosphate;
bioactivity; hydroxyapatite
ID BIOACTIVE GLASS COATINGS; SIMULATED BODY-FLUID; SOL-GEL PROCESS;
ELECTROPHORETIC DEPOSITION; MECHANICAL-PROPERTIES; APATITE FORMATION;
IN-VITRO; HYDROXYAPATITE; TI6AL4V
AB Graded bilayered glass-ceramic composite coatings on Ti6Al4V substrates were fabricated using an enameling technique. The layers consisted of a mixture of glasses in the CaO-MgO-Na(2)O-K(2)O-P(2)O(5) system with different amounts of calcium phosphates (CPs). Optimum firing conditions have been determined for the fabrication of coatings having good adhesion to the metal, while avoiding deleterious reactions between the glass and the ceramic particles. The final coatings do not crack or delaminate. The use of high-silica layers (> 60 wt % SiO(2)) in contact with the alloy promotes long-term stability of the coating; glass-metal adhesion is achieved through the formation of a nanostructured Ti(5)Si(3) layer. A surface layer containing a mixture of a low-silica glass (similar to 53 wt % SiO(2)) and synthetic hydroxyapatite particles promotes the precipitation of new apatite during tests in vitro. The in vitro behavior of the coatings in simulated body fluid depends both on the composition of the glass matrix and the CP particles, and is strongly affected by the coating design and the firing conditions. (c) 2008 Wiley Periodicals, Inc. J Biomed Mater Res 88A: 1010-1021, 2009
C1 [Lopez-Esteban, S.; Gutierrez-Gonzalez, C. F.; Gremillard, L.; Saiz, E.; Tomsia, A. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Lopez-Esteban, S.; Gutierrez-Gonzalez, C. F.] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain.
[Gremillard, L.] Univ Lyon, INSA Lyon, CNRS, MATEIS,UMR 5510, F-69621 Villeurbanne, France.
RP Lopez-Esteban, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 62R0203, Berkeley, CA 94720 USA.
EM slopez@icmm.csic.es
OI Gutierrez-Gonzalez, Carlos/0000-0002-4328-4635; Gremillard,
Laurent/0000-0001-7258-6483
FU NIH/NIDCR [1R01DE11289]
FX Contract grant sponsor: NIH/NIDCR; contract grant number: 1R01DE11289
NR 31
TC 14
Z9 14
U1 0
U2 8
PU WILEY-LISS
PI HOBOKEN
PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1549-3296
J9 J BIOMED MATER RES A
JI J. Biomed. Mater. Res. Part A
PD MAR 15
PY 2009
VL 88A
IS 4
BP 1010
EP 1021
DI 10.1002/jbm.a.31935
PG 12
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA 407SD
UT WOS:000263383700018
PM 18384170
ER
PT J
AU Zhao, R
Ding, SJ
Shen, YF
Camp, DG
Livesay, EA
Udseth, H
Smith, RD
AF Zhao, Rui
Ding, Shi-Jian
Shen, Yufeng
Camp, David G.
Livesay, Eric A.
Udseth, Harold
Smith, Richard D.
TI Automated metal-free multiple-column nanoLC for improved phosphopeptide
analysis sensitivity and throughput
SO JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL
AND LIFE SCIENCES
LA English
DT Article
DE Metal free nano-LC; On line SPE column; Phosphopeptide; Automation; Mass
spectrometer
ID TANDEM MASS-SPECTROMETRY; TYROSINE PHOSPHORYLATION;
LIQUID-CHROMATOGRAPHY; PHOSPHOPROTEOME ANALYSIS;
PROTEIN-PHOSPHORYLATION; SIGNALING NETWORKS; PROTEOMICS; ONLINE; MS/MS;
CELLS
AB We report on the development and characterization of automated metal-free multiple-column nanoLC instrumentation for sensitive and high-throughput analysis of phosphopeptides with mass spectrometry. The system employs a multiple-column capillary LC fluidic design developed for high-throughput analysis of peptides (Anal. Chem. 2001, 73, 3011-3021), incorporating modifications to achieve broad and sensitive analysis of phosphopeptides. The integrated nanoLC columns (50 mu m i.d. x 30 cm containing 5 mu m C18 particles) and the on-line solid phase extraction Columns (150 mu m i.d. x 4 cm containing 5 mu m C18 particles) were connected to automatic switching valves with non-metal chromatographic accessories. and other modifications to avoid the exposure of the analyte to any metal Surfaces during handling, separation. and electrospray ionization. The nanoLC developed provided a separation peak capacity of similar to 250 for phosphopeptides (and similar to 400 for normal peptides), A detection limit of 0.4 fmol was obtained when a linear ion trap tandem mass spectrometer (Finnegan LTQ) was coupled to a 50-mu m W. column of the nanoLC. The separation power and sensitivity provided by the nanoLC-LTQ enabled identification of similar to 4600 phosphopeptide candidates from similar to 60 mu g COS-7 cell tryptic digest followed by IMAC enrichment and similar to 520 tyrosine phosphopeptides from similar to 2 mg of human T cells digests followed by phosphotyrosine peptide immunoprecipitation. (C) Published by Elsevier B.V.
C1 [Smith, Richard D.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999, Richland, WA 99352 USA.
EM rds@pnl.gov
RI Smith, Richard/J-3664-2012
OI Smith, Richard/0000-0002-2381-2349
FU NIH National Center for Research Resources [RR018522]; Laboratory
Directed Research Development program at Pacific Northwest National
Laboratory (PNNL); [DE-AC05-76RL01830]
FX We thank Dr. Feng Yang for her key contributions to the LC cart design,
including the use of metal-free valves and integrated ESI tips,
application of the ESI voltage in the HPLC waste line, and selection of
LC solvents and packing material for phosphopeptide analysis. We also
thank Dr. Yang for her early research contributions to phosphopeptide
enrichment, LC-MS/MS phosphopeptide analysis, and the data analysis of
phosphopeptides. Additionally, we thank Drs. Yingchun Wang and Lee
Opresko for providing COS-7 and HMEC cell lysates, respectively.
Portions of this research were funded by the NIH National Center for
Research Resources (RR018522) and the Laboratory Directed Research
Development program at Pacific Northwest National Laboratory (PNNL).
Work was performed in the Environmental Molecular Sciences Laboratory, a
U.S. Department of Energy (DOE) national scientific user facility
located at Pacific Northwest National Laboratory (PNNL) in Richland,
Washington. PNNL is a multi-program national laboratory operated for the
DOE by Battelle under Contract DE-AC05-76RL01830.
NR 31
TC 23
Z9 23
U1 1
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1570-0232
J9 J CHROMATOGR B
JI J. Chromatogr. B
PD MAR 15
PY 2009
VL 877
IS 8-9
BP 663
EP 670
DI 10.1016/j.jchromb.2008.12.068
PG 8
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 424NV
UT WOS:000264574300001
PM 19217835
ER
PT J
AU Ptak, AJ
France, R
Jiang, CS
Romero, MJ
AF Ptak, A. J.
France, R.
Jiang, C. -S.
Romero, M. J.
TI Improved performance of GaInNAs solar cells grown by molecular-beam
epitaxy using increased growth rate instead of surfactants
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article
DE Roughening; Segregation; Molecular-beam epitaxy; Semiconducting III-V
materials; Solar cells
ID DEPLETION-WIDTH GAINNAS; BISMUTH; NITROGEN
AB GaInNAs is potentially useful for increasing the conversion efficiency of multijunction solar cells if low photocurrents and photovoltages can be increased. Wide-depletion width devices generate significant photocurrents using an n-i-p structure grown by molecular-beam epitaxy, but these wide depletion widths are only realized in a region of parameter space that leads to rough surface morphologies. Surfactants are effective at reducing the surface roughness, but lead to increased defect densities and changes in the net acceptor or donor concentration. Here, we show that increasing the growth rate of GaInNAs solar cells leads to smooth surfaces without the use of a surfactant, even at high In compositions and substrate temperatures. No degradation in material quality is observed when increasing the growth rate from 1.5 to 3.0 mu m/h, but a shunt resistance does appear for the high-growth-rate samples. This shunt is attributed to increased spitting of the Ga cell, leading to an increase in the oval defect density, at the higher effusion cell temperatures used to achieve high growth Fates. As with the case of Bi in GaInNAs, increased growth rates also appear to increase the net donor concentration, but it is not clear if these effects have the same cause. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Ptak, A. J.; France, R.; Jiang, C. -S.; Romero, M. J.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Ptak, AJ (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM aaron_ptak@nrel.gov
RI jiang, chun-sheng/F-7839-2012
FU National Renewable Energy Laboratory under DOE [DE-AC36-99GO10337]
FX We are grateful to Jian Li for the preliminary DLTS data, and DJ.
Friedman and M. Steiner for useful conversations. This work was
completed at the National Renewable Energy Laboratory under DOE Contract
no. DE-AC36-99GO10337.
NR 14
TC 7
Z9 7
U1 0
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0248
J9 J CRYST GROWTH
JI J. Cryst. Growth
PD MAR 15
PY 2009
VL 311
IS 7
BP 1876
EP 1880
DI 10.1016/j.jcrysgro.2008.09.184
PG 5
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 439WW
UT WOS:000265659300062
ER
PT J
AU Le Messurier, D
Petkov, V
Martin, SW
Kim, Y
Ren, Y
AF Le Messurier, D.
Petkov, V.
Martin, S. W.
Kim, Youngsik
Ren, Y.
TI Three-dimensional structure of fast ion conducting
0.5Li(2)S+0.5[(1-x)GeS2 + xGeO(2)] glasses from high-energy X-ray
diffraction and reverse Monte Carlo simulations
SO JOURNAL OF NON-CRYSTALLINE SOLIDS
LA English
DT Article
DE Sychrotron radiation; X-ray diffraction; Mixed-anion effect; Monte Carlo
simulations; Structure; X-ray diffraction
ID X-RAY-DIFFRACTION; GLASSES; SYSTEM; CRYSTALLINE; PROGRAM
AB A high-energy X-ray diffraction study has been carried out on a series of 0.5Li(2)S + 0.5[(1 - x)GeS2 + xGeO(2)] glasses with x = 0.0, 0.1, 0,2, 0.4, 0.6 and 0.8. Structure factors were measured to wave vectors as high as 30 A(-1) resulting in atomic pair distribution functions with high real space resolution. The three dimensional atomic-scale structure of the glasses was modeled by reverse Monte Carlo simulations based on the diffraction data. Results from the simulations show that at the atomic-scale 0.5Li(2)S + 0.5[(1 - x)GeS2 + xGeO(2)] glasses may be viewed as an assembly of independent chains of (Li+ S-)(2)GeS2/2 and (Li+ O-)(2)GeO2/2 tetrahedra as repeat units, where the Li ions occupy the open space between the chains. The new structure data may help understand the reasons for the sharp maximum in the Li+ ion conductivity at x similar to 0.2. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Le Messurier, D.; Petkov, V.] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA.
[Martin, S. W.; Kim, Youngsik] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50010 USA.
[Ren, Y.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Petkov, V (reprint author), Cent Michigan Univ, Dept Phys, Dow 203, Mt Pleasant, MI 48859 USA.
EM petkov@phy.cmich.edu
RI Kim, Youngsik/B-3570-2014
FU NSF [DMR 0710564]; DoE [W-31-109-ENG-38]
FX Work on the project was supported by NSF DMR Grant No. 0710564. The APS
is supported by DoE Grant W-31-109-ENG-38. Thanks are due to Aleksandar
Matic from Chalmers University for his useful comments on the
manuscript.
NR 21
TC 6
Z9 6
U1 7
U2 14
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 15
PY 2009
VL 355
IS 7
BP 430
EP 437
DI 10.1016/j.jnoncrysol.2009.01.006
PG 8
WC Materials Science, Ceramics; Materials Science, Multidisciplinary
SC Materials Science
GA 430BE
UT WOS:000264963000006
ER
PT J
AU Tobin, JG
Yu, SW
Chung, BW
Waddill, GD
AF Tobin, J. G.
Yu, S. W.
Chung, B. W.
Waddill, G. D.
TI Resolving the Pu electronic structure enigma: Past lessons and future
directions
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID PHOTOELECTRON-SPECTROSCOPY; SPECTROMETER
AB The nature and limitations of the photoelectron spectroscopy (PES) of Pu is discussed, particularly the absence of detailed fine structure. A novel experiment, Fano Spectroscopy, is suggested as a means to obtain additional fine structure, with which to bench-mark and differentiate theoretical models. (C) 2008 Elsevier B.V. All rights reserved.
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 USA.
RP Tobin, JG (reprint author), Lawrence Livermore Natl Lab, 700 E Ave, Livermore, CA 94550 USA.
EM Tobin1@LLNL.Gov
RI Chung, Brandon/G-2929-2012; Tobin, James/O-6953-2015
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; DOE Office of Basic Energy Science and Campaign
[2/WCI/LLNL]
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 in part by the DOE Office of Basic Energy
Science and Campaign 2/WCI/LLNL.
NR 21
TC 1
Z9 1
U1 0
U2 1
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 MAR 15
PY 2009
VL 385
IS 1
BP 31
EP 34
DI 10.1016/j.jnucmat.2008.10.023
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600011
ER
PT J
AU Trouw, F
Rhyne, JJ
Mitchell, JN
AF Trouw, F.
Rhyne, J. J.
Mitchell, J. N.
TI Pu neutron scattering studies - Magnetism and structure
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID DELTA-PLUTONIUM; ACTINIDES; STATE
AB Neutron scattering results are presented on delta-phase Pu stabilized with 2% Ga performed on the time-of-flight instrument Pharos in zero magnetic field and also in an 8 T applied field over the temperature range from room temperature down to 1.7 K. Comparison of the field and temperature dependence of the diffraction patterns showed no evidence of peaks of magnetic origin, and thus no long-range order is induced even in an 8 T applied field. Due to the wave-vector character of the scattering, this result can not be explained by the possible cancellation of the orbital and spin components of the moment. Additional inelastic scattering experiments at room temperature did reveal a very weak inelastic feature at 90 meV which is tempting to ascribe to H impurities. However, the feature did not have the expected Q(2) intensity dependence as would be expected for H vibrations, and thus the origin of this 90 meV peak is unexplained. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Trouw, F.; Rhyne, J. J.; Mitchell, J. N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Rhyne, JJ (reprint author), Los Alamos Natl Lab, POB 1666, Los Alamos, NM 87545 USA.
EM rhyne@lanl.gov
RI Lujan Center, LANL/G-4896-2012; Mitchell, Jeremy/E-2875-2010
OI Mitchell, Jeremy/0000-0001-7109-3505
NR 11
TC 1
Z9 1
U1 0
U2 5
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 MAR 15
PY 2009
VL 385
IS 1
BP 35
EP 37
DI 10.1016/j.jnucmat.2008.09.052
PG 3
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600012
ER
PT J
AU Batista, CD
AF Batista, C. D.
TI Effective Hamiltonian for metallic Pu
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID DELTA-PLUTONIUM; ELECTRONS
AB We derive a low-energy effective Hamiltonian (H) over tilde (Pu) for metallic Pu by assuming that intra-atomic Coulomb and spin-orbit interactions are much stronger than the kinetic energy terms. An important property of (H) over tilde (Pu) is the exact cancellation of the effective f - f hopping tensor that places Pu closer to lanthanide systems such as Ce or mixed valent Sm than to the rest of the actinides. The similarity between the low-energy models of Pu and these mixed valent lanthanide systems could be the common root for explaining the large volume expansions observed in all of them. (C) 2008 Elsevier B.V. All rights reserved.
C1 Los Alamos Natl Lab, Condensed Matter Grp T11, Los Alamos, NM 87545 USA.
RP Batista, CD (reprint author), Los Alamos Natl Lab, Condensed Matter Grp T11, POB 1663, Los Alamos, NM 87545 USA.
EM cdb@lanl.gov
RI Batista, Cristian/J-8008-2016
NR 19
TC 0
Z9 0
U1 0
U2 1
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 MAR 15
PY 2009
VL 385
IS 1
BP 60
EP 62
DI 10.1016/j.jnucmat.2008.10.018
PG 3
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600019
ER
PT J
AU Landa, A
Soderlind, P
Turchi, PEA
Vitos, L
Ruban, A
AF Landa, Alex
Soederlind, Per
Turchi, Patrice E. A.
Vitos, L.
Ruban, A.
TI Density-functional study of Zr-based actinide alloys
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID PHASE; TRANSITION; ZIRCONIUM; GRADIENT; APPROXIMATION; CALORIMETRY;
DELTA-UZR2; STABILITY; ENTHALPY; ENERGY
AB Density-functional formalism is applied to study the phase equilibria in the U-Zr system. The obtained ground-state properties of the gamma (bcc) and delta (02) phases are in good agreement with experimental data. The decomposition curve for the gamma-based U-Zr solutions is calculated. We argue that stabilization of the delta-UZr2 phase relative to the alpha-Zr (hcp) structure is due to an increase of the Zr d-band occupancy that occurs when U is alloyed with Zr. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Landa, Alex; Soederlind, Per; Turchi, Patrice E. A.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Vitos, L.; Ruban, A.] Royal Inst Technol, SE-10044 Stockholm, Sweden.
RP Landa, A (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM landa1@llnl.gov
RI Ruban, Andrei/B-7457-2012
FU LLNL [DE-AC52-07NA27344]
FX This work was performed under the auspices of the US DOE by LLNL under
contract DE-AC52-07NA27344.
NR 39
TC 10
Z9 10
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-3115
EI 1873-4820
J9 J NUCL MATER
JI J. Nucl. Mater.
PD MAR 15
PY 2009
VL 385
IS 1
BP 68
EP 71
DI 10.1016/j.jnucmat.2008.09.029
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600022
ER
PT J
AU Dremov, VV
Karavaev, AV
Samarin, SI
Sapozhnikov, FA
Zocher, MA
Preston, DL
AF Dremov, V. V.
Karavaev, A. V.
Samarin, S. I.
Sapozhnikov, F. A.
Zocher, M. A.
Preston, D. L.
TI Molecular dynamics characterization of thermodynamic and mechanical
properties of Pu as dependent upon alloying additions and defects
concentration. Part I
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID CASCADE SIMULATIONS; DELTA-PLUTONIUM; DENSITY CHANGES
AB The paper presents - results of molecular dynamics (MD) simulations which were performed to investigate mobility of defects in the delta-PuGa alloy. The defects diffuse through thermal fluctuations and MD results provided parameters for the Arrhenius law describing defect diffusion versus temperature. On the basis of this information a model of radiation defect accumulation allowing for different types of defects and grain size was constructed. The annealing of the defects at elevated temperatures and the effect of accelerated ageing due to adding small quantities of Pu-238 upon defect accumulation were evaluated. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Dremov, V. V.; Karavaev, A. V.; Samarin, S. I.; Sapozhnikov, F. A.] Russian Fed Nucl Ctr, Inst Tech Phys, Theoret Div 2, Snezhinsk 456770, Chelyabinsk Reg, Russia.
[Zocher, M. A.; Preston, D. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Dremov, VV (reprint author), Russian Fed Nucl Ctr, Inst Tech Phys, Theoret Div 2, 13 Vasiliev Str, Snezhinsk 456770, Chelyabinsk Reg, Russia.
EM vvd0531@mail.ru
RI Karavaev, Alexey/D-5306-2013
OI Karavaev, Alexey/0000-0002-2661-9616
FU Institute of Technical Physics and Los Alamos National Laboratory
[04783-000-99-35]
FX The work was performed under Contract No. 04783-000-99-35 between the
Institute of Technical Physics and Los Alamos National Laboratory.
NR 11
TC 12
Z9 12
U1 0
U2 10
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 MAR 15
PY 2009
VL 385
IS 1
BP 79
EP 82
DI 10.1016/j.jnucmat.2008.10.037
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600025
ER
PT J
AU Chung, BW
Thompson, SR
Lema, KE
Hiromoto, DS
Ebbinghaus, BB
AF Chung, B. W.
Thompson, S. R.
Lema, K. E.
Hiromoto, D. S.
Ebbinghaus, B. B.
TI Evolving density and static mechanical properties in plutonium from
self-irradiation
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID PU-238 ENRICHMENT; ALLOYS
AB Plutonium, because of its self-irradiation by alpha decay, ages by means of lattice damage and helium ingrowth. These integrated aging effects result in microstructural and physical property changes. Because these effects would normally require decades to measure, studies are underway to assess the effects of extended aging on the physical properties of plutonium alloys by incorporating roughly 7.5 wt% of highly specific activity isotope (238)Pu into the (239)Pu metal to accelerate the aging process. This paper presents updated results of self-irradiation effects on (238)Pu-enriched alloys measured by immersion density, dilatometry, and tensile tests. After nearly 90 equivalent years of aging, both the immersion density and dilatometry show that the enriched alloys continue to decreased in density by similar to 0.002% per year, without void swelling. Quasi-static tensile measurements show that the aging process increases the strength of plutonium alloys. (c) 2008 Elsevier B.V. All rights reserved.
C1 [Chung, B. W.; Thompson, S. R.; Lema, K. E.; Hiromoto, D. S.; Ebbinghaus, B. B.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Chung, BW (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA.
EM chung7@llnl.gov
RI Chung, Brandon/G-2929-2012
FU Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
FX This work performed under the auspices of the US Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 15
TC 13
Z9 14
U1 4
U2 15
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 MAR 15
PY 2009
VL 385
IS 1
BP 91
EP 94
DI 10.1016/j.jnucmat.2008.09.031
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600028
ER
PT J
AU Mitchell, JN
Freibert, FJ
Schwartz, DS
Bange, ME
AF Mitchell, J. N.
Freibert, F. J.
Schwartz, D. S.
Bange, M. E.
TI Unconventional delta-phase stabilization in Pu-Ga alloys
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID TRANSFORMATIONS; STABILITY
AB Face-centered cubic delta-phase Pu stabilized with less than 3 at.% Ga will partially transform martensitically to monoclinic alpha'-phase at cryogenic temperatures. Thermal cycling of young alloys in a dilatometer tends to stabilize delta Pu by shifting the transformation to lower temperatures and reducing the amount of transformation. Similar experiments using samples aged naturally or by doping with (238)Pu Will stabilize delta Pu such that annealing at or above 150 degrees C is required before normal transformation behavior occurs. We discuss the role that radiation damage and recovery play in this unconventional stabilization of delta-phase Pu. Published by Elsevier B.V.
C1 [Mitchell, J. N.; Freibert, F. J.; Schwartz, D. S.; Bange, M. E.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Mitchell, JN (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MS E574, Los Alamos, NM 87545 USA.
EM jeremy@lanl.gov
RI Mitchell, Jeremy/E-2875-2010
OI Mitchell, Jeremy/0000-0001-7109-3505
FU United States Department of Energy [W-7405-ENG-36]
FX This work was funded by the United States Department of Energy under
Contract W-7405-ENG-36.
NR 6
TC 5
Z9 5
U1 2
U2 10
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 MAR 15
PY 2009
VL 385
IS 1
BP 95
EP 98
DI 10.1016/j.jnucmat.2008.10.022
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600029
ER
PT J
AU Chang, GS
AF Chang, Gray S.
TI Enhancing BWR proliferation resistance fuel with minor actinides
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
AB To reduce spent fuel for storage and enhance the proliferation resistance for the intermediate-term, there are two major approaches (a) increase the discharged spent fuel burnup in the advanced light water reactor- LWR (Gen-III Plus), which not only can reduce the spent fuel for storage, but also increase the (238)Pu isotopes ratio to enhance the proliferation resistance, and (b) use of transuranic nuclides ((237)Np and (241)Am) in the high burnup fuel, which can drastically increase the proliferation resistance isotope ratio of (238)Pu/Pu. For future advanced nuclear systems, minor actinides (MA) are viewed more as a resource to be recycled, and transmuted to less hazardous and possibly more useful forms, rather than simply disposed of as a waste stream in an expensive repository facility. As a result, MAs play a much larger part in the design of advanced systems and fuel cycles, not only as additional sources of useful energy, but also as direct contributors to the reactivity control of the systems into which they are incorporated. In the study, a typical boiling water reactor (BWR) fuel unit lattice cell model with UO(2) fuel pins will be used to investigate the effectiveness of minor actinide reduction approach (MARA) for enhancing proliferation resistance and improving the fuel cycle performance in the intermediate-term goal for future nuclear energy systems. To account for the water coolant density variation from the bottom (0.76 g/cm(3)) to the top (0.35 g/cm(3)) of the core, the axial coolant channel and fuel pin were divided to 24 nodes. The MA transmutation characteristics at different elevations were compared and their impact on neutronics criticality discussed. The concept of MARA, which involves the use of transuranic nuclides ((237)Np and/or (241)Am), significantly increases the (238)Pu/Pu ratio for proliferation resistance, as well as serves as a burnable absorber to hold-down the initial excess reactivity. It is believed that MARA can play an important role in atoms for peace and the intermediate-term of nuclear energy reconnaissance. (c) 2008 Elsevier B.V. All rights reserved.
C1 Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Chang, GS (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
EM gray.chang@inl.gov
NR 7
TC 2
Z9 2
U1 0
U2 0
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 MAR 15
PY 2009
VL 385
IS 1
BP 157
EP 160
DI 10.1016/j.jnucmat.2008.08.062
PG 4
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600043
ER
PT J
AU Neuman, AD
Davis, CC
Nothwang, TA
Hampel, FG
Voit, SL
Lopez, MR
Martinez, AC
AF Neuman, A. D.
Davis, C. C.
Nothwang, T. A.
Hampel, F. G.
Voit, S. L.
Lopez, M. R.
Martinez, A. C.
TI Characterization of minor actinide mixed oxide fuel
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID REACTOR
AB The global nuclear energy partnership (GNEP) was created in order for 'fuel-cycle supplier' nations to provide assured supplies of nuclear fuel to 'fuel-cycle customer' nations. The customer nations would utilize the fuel for electricity generation and subsequently return it to the supplier nation after it is spent. This spent fuel would then be reprocessed by the supplier nation in order to recycle the actinide constituents, mainly uranium and plutonium, in advanced nuclear power reactors. and thus reduce waste volumes [1,2]. The International Atomic Energy Agency would control the nuclear materials. One of the thrust areas for the GNEP program is the development of these actinide bearing fuels for transmutation in a fast reactor. Published by Elsevier B.V.
C1 [Neuman, A. D.; Davis, C. C.; Nothwang, T. A.; Hampel, F. G.; Lopez, M. R.; Martinez, A. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Voit, S. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Neuman, AD (reprint author), Los Alamos Natl Lab, MS E574, Los Alamos, NM 87545 USA.
EM neuman@lanl.gov
FU Department of Energy [(DOE)/NE-5]; Global Energy Partnership
[DE-AC52-06NA25396]
FX This work was supported by the Department of Energy (DOE)/NE-5, Global
Energy Partnership, under contract DE-AC52-06NA25396. The authors would
like to thank Harold Chacon, David Medina, Richard Mason, and David
Alberstein for their support.
NR 11
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 MAR 15
PY 2009
VL 385
IS 1
BP 168
EP 172
DI 10.1016/j.jnucmat.2008.10.021
PG 5
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600046
ER
PT J
AU Rudisill, TS
AF Rudisill, Tracy S.
TI Decontamination of Zircaloy cladding hulls from spent nuclear fuel
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
AB The feasibility of decontaminating spent fuel cladding hulls using hydrofluoric acid (HF) was investigated as part of the Global Energy Nuclear Partnership (GNEP) Separations Campaign. The concentrations of the fission product and transuranic (TRU) isotopes in the decontaminated hulls were compared to the limits for determining the low level waste (LLW) classification in the United States (US). The (90)Sr and (137)Cs concentrations met the disposal criteria for a Class C LLW; although, in a number of experiments the criteria for disposal as a Class B LLW were met. The TRU concentration in the hulls generally exceeded the Class C LLW limit by at least an order of magnitude. The concentration decreased sharply as the initial 30-40 mu m of the cladding hull surface were removed. At depths beyond this point, the TRU activity remained relatively constant, well above the Class C limit. (C) 2008 Elsevier B.V. All rights reserved.
C1 Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Rudisill, TS (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM tracy.rudisill@srnl.doe.gov
NR 10
TC 18
Z9 18
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 MAR 15
PY 2009
VL 385
IS 1
BP 193
EP 195
DI 10.1016/j.jnucmat.2008.10.016
PG 3
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 425YS
UT WOS:000264674600052
ER
PT J
AU Sinitsyn, NA
AF Sinitsyn, N. A.
TI The stochastic pump effect and geometric phases in dissipative and
stochastic systems
SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
LA English
DT Review
ID LOW-REYNOLDS-NUMBER; EXCEPTIONAL POINTS; MOLECULAR MOTORS; BROWNIAN
MOTORS; BERRY PHASE; ENERGY TRANSDUCTION; POLARIZATION OPTICS; COUNTING
STATISTICS; OSCILLATING FIELD; WAVE-PROPAGATION
AB The success of Berry phases in quantum mechanics stimulated the study of similar phenomena in other areas of physics, including the theory of living cell locomotion and motion of patterns in nonlinear media. More recently, geometric phases have been applied to systems operating in a strongly stochastic environment, such as molecular motors. We discuss such geometric effects in purely classical dissipative stochastic systems and their role in the theory of the stochastic pump effect (SPE).
C1 Los Alamos Natl Lab, Computat & Stat Sci Div, Ctr Nonlinear Studies & Comp, Los Alamos, NM 87545 USA.
RP Sinitsyn, NA (reprint author), Los Alamos Natl Lab, Computat & Stat Sci Div, Ctr Nonlinear Studies & Comp, Los Alamos, NM 87545 USA.
RI Sinitsyn, nikolai/B-5617-2009
FU DOE [DE-AC52-06NA25396]
FX The author thanks Allan Adler for insightful comments, which were used
to substantially improve this review. The author also thanks Qian Niu
and Ilya Nemenman for useful discussions and Maryna Anatska for the help
with illustrations. This work was funded in part by DOE under contract
No. DE-AC52-06NA25396.
NR 176
TC 41
Z9 41
U1 1
U2 21
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1751-8113
J9 J PHYS A-MATH THEOR
JI J. Phys. A-Math. Theor.
PD MAR 15
PY 2009
VL 42
IS 19
AR 193001
DI 10.1088/1751-8113/42/19/193001
PG 33
WC Physics, Multidisciplinary; Physics, Mathematical
SC Physics
GA 442BO
UT WOS:000265815000004
ER
PT J
AU Borole, AP
LaBarge, S
Spott, BA
AF Borole, Abhijeet P.
LaBarge, Samuel
Spott, Benjamin A.
TI Three-dimensional, gas phase fuel cell with a laccase biocathode
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Enzyme fuel cell; Laccase; Gas phase; Biocathode; Three-dimensional;
Alcohol vapor fuel
ID ELECTRODES; REDUCTION; ENZYME; OXYGEN; COMPOSITE; CATHODE; WATER
AB A fuel cell using an enzymatic biocathode operating in a gas phase mode is reported. The electrode was prepared using a three-dimensional conductive electrode matrix. An enzyme Solution containing laccase and a mediator was distributed into a hydrophilic matrix of carbon felt fibers creating a porous gas-flowing electrode. A Pt-based gas diffusion electrode served as the anode. A maximum power density of 9.4 W m (2) (2.9 kW m (3)) was obtained with 15 U of enzyme cm (2), with hydrogen as the fuel. Power density was found to be a function of the enzyme loading, air flow rate, volume of the liquid phase and the humidity of the air stream. The ability to use methanol and ethanol as vapors in gas phase was also shown. The introduction of three-dimensionality into the electrode architecture and operation of the fuel cell in a gas phase mode to Supply the fuel and the oxidant demonstrates an avenue for improving the power density of EFCs. (C) Published by Elsevier B.V.
C1 [Borole, Abhijeet P.] Oak Ridge Natl Lab, BioSci Div, Oak Ridge, TN 37831 USA.
[LaBarge, Samuel; Spott, Benjamin A.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
RP Borole, AP (reprint author), Oak Ridge Natl Lab, BioSci Div, Oak Ridge, TN 37831 USA.
EM borolea@ornl.gov
RI Borole, AP/F-3933-2011;
OI Borole, Abhijeet/0000-0001-8423-811X
FU Laboratory Directed Research and Development Program (Seed Money Funds)
of Oak Ridge National Laboratory (ORNL); ORISE
FX Research sponsored by the Laboratory Directed Research and Development
Program (Seed Money Funds) of Oak Ridge National Laboratory (ORNL),
managed by UT-Battelle, LLC for the U.S. Department of Energy. Support
from ORISE to SL and BAS is greatly appreciated. The authors Would like
to thank Costas Tsouris, Hugh O'Neill, Jonathan R. Mielenz. and Vojtech
Svoboda for helpful comments and Lindsey Amason for editing the
manuscript.
NR 14
TC 14
Z9 14
U1 1
U2 12
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 15
PY 2009
VL 188
IS 2
BP 421
EP 426
DI 10.1016/j.jpowsour.2008.11.110
PG 6
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 425OL
UT WOS:000264646900011
ER
PT J
AU Yeh, WW
Jaru-Ampornpan, P
Nevidomskyte, D
Asmal, M
Rao, SS
Buzby, AP
Montefiori, DC
Korber, BT
Letvin, NL
AF Yeh, Wendy W.
Jaru-Ampornpan, Pimkwan
Nevidomskyte, Daiva
Asmal, Mohammed
Rao, Srinivas S.
Buzby, Adam P.
Montefiori, David C.
Korber, Bette T.
Letvin, Norman L.
TI Partial Protection of Simian Immunodeficiency Virus (SIV)-Infected
Rhesus Monkeys against Superinfection with a Heterologous SIV Isolate
SO JOURNAL OF VIROLOGY
LA English
DT Article
ID INJECTION-DRUG USERS; TYPE-1 SUPERINFECTION; HIV-1 SUPERINFECTION;
PRIMARY INFECTION; CYNOMOLGUS MONKEYS; RAPID PROGRESSION; ATTENUATED
VIRUS; LONG-TERM; IMMUNE-RESPONSES; DUAL INFECTION
AB Although there is increasing evidence that individuals already infected with human immunodeficiency virus type 1 (HIV-1) can be infected with a heterologous strain of the virus, the extent of protection against superinfection conferred by the first infection and the biologic consequences of superinfection are not well understood. We explored these questions in the simian immunodeficiency virus (SIV)/rhesus monkey model of HIV-1/AIDS. We infected cohorts of rhesus monkeys with either SIVmac251 or SIVsmE660 and then exposed animals to the reciprocal virus through intrarectal inoculations. Employing a quantitative real-time PCR assay, we determined the replication kinetics of the two strains of virus for 20 weeks. We found that primary infection with a replication-competent virus did not protect against acquisition of infection by a heterologous virus but did confer relative control of the superinfecting virus. In animals that became superinfected, there was a reduction in peak replication and rapid control of the second virus. The relative susceptibility to superinfection was not correlated with CD4(+) T-cell count, CD4(+) memory T-cell subsets, cytokine production by virus-specific CD8(+) or CD4(+) cells, or neutralizing antibodies at the time of exposure to the second virus. Although there were transient increases in viral loads of the primary virus and a modest decline in CD4(+) T-cell counts after superinfection, there was no evidence of disease acceleration. These findings indicate that an immunodeficiency virus infection confers partial protection against a second immunodeficiency virus infection, but this protection may be mediated by mechanisms other than classical adaptive immune responses.
C1 [Letvin, Norman L.] Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Div Viral Pathogenesis, Boston, MA 02115 USA.
[Rao, Srinivas S.] NIH, Vaccine Res Ctr, Bethesda, MD 20892 USA.
[Montefiori, David C.] Duke Univ, Med Ctr, Dept Surg, Durham, NC 27710 USA.
[Korber, Bette T.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Korber, Bette T.] Santa Fe Inst, Santa Fe, NM USA.
RP Letvin, NL (reprint author), Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Div Viral Pathogenesis, CLS 1043,3 Blackfan Circle, Boston, MA 02115 USA.
EM nletvin@bidmc.harvard.edu
OI Korber, Bette/0000-0002-2026-5757
FU NIH NIAID PHS [K08-AI069995, AI-067854]; Center for HIV/AIDS Vaccine
Immunology
FX We thank Vanessa Hirsch for providing virus stock SIVsmE660. This work
was supported by NIH NIAID PHS grants K08-AI069995 (W.W.Y.) and
AI-067854 (W.W.Y. and N.L.L.) and the Center for HIV/AIDS Vaccine
Immunology.
NR 67
TC 28
Z9 28
U1 4
U2 5
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0022-538X
J9 J VIROL
JI J. Virol.
PD MAR 15
PY 2009
VL 83
IS 6
BP 2686
EP 2696
DI 10.1128/JVI.02237-08
PG 11
WC Virology
SC Virology
GA 411LG
UT WOS:000263650500028
PM 19129440
ER
PT J
AU Leal-Cruz, AL
Pech-Canul, MI
Lara-Curzio, E
Trejo, RM
Peascoe, R
AF Leal-Cruz, A. L.
Pech-Canul, M. I.
Lara-Curzio, E.
Trejo, R. M.
Peascoe, R.
TI Selective synthesis and characterization of HYSYCVD-Si2N2O
SO MATERIALS CHEMISTRY AND PHYSICS
LA English
DT Article
DE Ceramics; Nitrides; Chemical vapor deposition (CVD); Crystal structure
ID IN-SITU SYNTHESIS; SOLID-PRECURSOR; SILICON; FILMS; CVD; NITRIDATION;
OXIDATION; KINETICS; SI3N4
AB In this work, stoichiometric silicon oxynitride (Si2N2O) has been successfully synthesized using a selective approach via hybrid precursor system-chemical vapor deposition (HYSYCVD). The deposited oxynitride phase has the following structural parameters: formula sum: Si8.00N8.00O4.00: formula mass: 400.7352 g mol(-1); density: 2.8010 g cm(-3); orthorhombic structure with lattice parameters (angstrom): a = 8.898, b = 5.495, c = 4.858. The optimum conditions for maximizing the amount of Si2N2O are as follows: SiCp/Si-p substrate with 60% porosity, UHP-N-2 at a flow rate of 10 cm(3) min(-1), and no use of diluent. According to ANOVA, flow rate of nitrogen precursor is the processing parameter that most significantly affects Si2N2O formation, with a relative contribution of 46%, followed by the type of nitrogen precursor (44%). Regarding the best nitrogen precursor, thermodynamic predictions on the formation of Si2N2O are in good agreement with ANOVA results. Analysis by SEM shows that Si2N2O is deposited into the preforms as rough fibers, snow-like fibers and spheres. (c) 2008 Elsevier B.V. All rights reserved.
C1 [Leal-Cruz, A. L.; Pech-Canul, M. I.] Cinvestav Saltillo, Saltillo 25900, Coahuila, Mexico.
[Lara-Curzio, E.; Trejo, R. M.; Peascoe, R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Leal-Cruz, AL (reprint author), Cinvestav Saltillo, Carr Saltillo Mty Km 13, Saltillo 25900, Coahuila, Mexico.
EM analilia.leal@cinvestav.edu.mx
RI Leal-Cruz, Ana/E-2216-2011;
OI leal-cruz, ana lilia/0000-0002-4709-6471
FU National Council of Science and Technology (CONACYT); Conacyt (National
Council of Science and Technology, Mexico) [2005-1/24322]
FX The authors gratefully acknowledge Mr. L. Walker and Ms. L. Riester,
with ORNL (Oak Ridge National Laboratory, High Temperature Materials
Laboratory, HTML), for technical assistance. Ms. Christine Goudy, also
with ORNL is thanked for administrative assistance. Dr. Leal-Cruz
especially thanks National Council of Science and Technology (CONACYT)
for granting a doctoral scholarship and COECYT-Coahuila for providing
financial support during the internship at ORNL. Authors express their
gratitude to Conacyt (National Council of Science and Technology,
Mexico) for financial support under project no. CB-2005-1/24322.
NR 21
TC 4
Z9 5
U1 1
U2 8
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 MAR 15
PY 2009
VL 114
IS 1
BP 376
EP 381
DI 10.1016/j.matchemphys.2008.09.042
PG 6
WC Materials Science, Multidisciplinary
SC Materials Science
GA 405UL
UT WOS:000263249600070
ER
PT J
AU Kaewgun, S
Nolph, CA
Lee, BI
Wang, LQ
AF Kaewgun, Sujaree
Nolph, Christopher A.
Lee, Burtrand I.
Wang, Li-Qiong
TI Influence of hydroxyl contents on photocatalytic activities of
polymorphic titania nanoparticles
SO MATERIALS CHEMISTRY AND PHYSICS
LA English
DT Article
DE Polymorphic titania; Lattice hydroxyls; Photocatalytic activity
ID HYDROTHERMAL BARIUM-TITANATE; ELECTRON-PARAMAGNETIC-RES; CONDITION SOL
PROCESS; SOLVOTHERMAL SYNTHESIS; H-1-NMR SPECTROSCOPY;
PHASE-TRANSFORMATION; TIO2 NANOPARTICLES; FIBROUS TITANIA; SURFACE;
RUTILE
AB Polymorphic titania nanoparticles, prepared by a Water-based Ambient Condition Sol (WACS) process, were post-treated by a Solvent-based Ambient Condition Sol (SACS) process in sec-butanol. All samples were characterized for phase composition, surface area, lattice hydroxyl contamination, and particle morphology by X-ray diffraction, N(2) physisorption, FT-IR, solid state Magic Angle Spinning (MAS) (1)H NMR and scanning electron microscopy. The results were compared to a commercial titania, Degussa P25. Evaluation of methyl orange degradation under UV irradiation results showed that the lower lattice hydroxyl content in SACS titania nanoparticles enhances photocatalytic activity. As-prepared titania and post-treated SACS samples, which have similar surface areas and crystallinity, were compared in order to prove that the superior photocatalytic activity came from a reduction in lattice hydroxyl content. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Kaewgun, Sujaree; Nolph, Christopher A.; Lee, Burtrand I.] Clemson Univ, Sch Mat Sci & Engn, Clemson, SC 29634 USA.
[Wang, Li-Qiong] Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA 99354 USA.
RP Lee, BI (reprint author), Clemson Univ, Sch Mat Sci & Engn, Clemson, SC 29634 USA.
EM burt.lee@ces.clemson.edu
FU state of South Carolina; American Chemical Society; Division of
Materials Sciences and Engineering, Office of Basic Energy Sciences U.S.
Department of Energy (USDOE); US Department of Energy's Office of
Biological and Environmental Research and located at Pacific Northwest
National Laboratory in Richland, WA
FX This research was supported by the state of South Carolina and the
Petroleum Research Fund of American Chemical Society. The authors
gratefully acknowledge Kimberly A. Ivey, School of Materials Science and
Engineering, Clemson University for all FT-IR data. L.-Q. Wang was
supported by the Division of Materials Sciences and Engineering, Office
of Basic Energy Sciences U.S. Department of Energy (USDOE). The NMR
experiments described in this paper were performed in the Environmental
Molecular Sciences Laboratory, a national scientific user facility
sponsored by the US Department of Energy's Office of Biological and
Environmental Research and located at Pacific Northwest National
Laboratory in Richland, WA.
NR 44
TC 18
Z9 18
U1 2
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 MAR 15
PY 2009
VL 114
IS 1
BP 439
EP 445
DI 10.1016/j.matchemphys.2008.09.072
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA 405UL
UT WOS:000263249600082
ER
PT J
AU Mathaudhu, SN
Derosset, AJ
Hartwig, KT
Kecskes, LJ
AF Mathaudhu, S. N.
deRosset, A. J.
Hartwig, K. T.
Kecskes, L. J.
TI Microstructures and recrystallization behavior of severely hot-deformed
tungsten
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article; Proceedings Paper
CT 1st International Symposium on Bulk Nanostructures Materials - From
Fundamentals to Innovations
CY AUG 14-18, 2007
CL Ufa State Aviat Tech Univ, Ufa, RUSSIA
HO Ufa State Aviat Tech Univ
DE ECAE; Microstructure; Recrystallization; Severe plastic deformation;
Tungsten; Ultrafine grains
AB When coarse-grained (CG) tungsten (W) is heavily worked by equal-channel angular extrusion (ECAE), the grain size is reduced to the ultrafine-grained/nanocrystal line regimes (UFG/NC) and the strength and ductility increase. Because of the brittle nature of CG W, the material must be hot-extruded, and, if the temperatures are near the recrystallization temperature (T(rc)), gains in properties may not be maximized. In this study, the recrystallization behavior of ECAE-processed CG W is examined as a function of the imparted strain (i.e., number of extrusions) and the hot-working extrusion temperature. Up to four ECAE passes were performed in tooling with a 90 degrees channel intersection, and at temperatures of 1000 degrees C or 1200 degrees C. Subsequent 60 min annealing of the worked material to 1600 degrees C allowed for the determination of T(rc). Vickers microhardness measurements and scanning electron microscopy, were used to characterize the microstructures in the as-worked and recrystallized states. The ECAE-processed W shows increased microstructural break-up and refinement with increasing strain and decreasing hot-working temperature in the fully worked state. T(rc) was determined to be similar to 1400 degrees C, which is nearly independent of the number of extrusions and the working temperature. These results show that if ECAE is accomplished below 1400 degrees C (i.e., at 1000 degrees C or lower) the attractive properties of the UFG/NC-worked W may be retained. Specifically, below 1000 degrees C, with increasing strain imparted to the material, high hardness values with a concomitant grain size refinement (similar to 350 nm) could be expected. published by Elsevier B.V.
C1 [Mathaudhu, S. N.; deRosset, A. J.; Kecskes, L. J.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
[Mathaudhu, S. N.; deRosset, A. J.] ORISE ORAU Maryland, Aberdeen Proving Ground, MD 21010 USA.
[Hartwig, K. T.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA.
RP Mathaudhu, SN (reprint author), USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
EM Suveen.mathaudhu@arl.army.mil
RI Mathaudhu, Suveen/B-4192-2009; Kecskes, Laszlo/F-6880-2014
OI Kecskes, Laszlo/0000-0002-1342-3729
NR 10
TC 20
Z9 25
U1 4
U2 31
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 MAR 15
PY 2009
VL 503
IS 1-2
SI SI
BP 28
EP 31
DI 10.1016/j.msea.2008.03.051
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 414OD
UT WOS:000263873100007
ER
PT J
AU Semenova, IP
Salimgareeva, GK
Latysh, VV
Lowe, T
Valiev, RZ
AF Semenova, I. P.
Salimgareeva, G. Kh.
Latysh, V. V.
Lowe, T.
Valiev, R. Z.
TI Enhanced fatigue strength of commercially pure Ti processed by severe
plastic deformation
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article; Proceedings Paper
CT 1st International Symposium on Bulk Nanostructures Materials - From
Fundamentals to Innovations
CY AUG 14-18, 2007
CL Ufa State Aviat Tech Univ, Ufa, RUSSIA
HO Ufa State Aviat Tech Univ
DE Fatigue; Ultrafine-grained Ti; Thermo-mechanical processing; Severe
plastic deformation; Strength; Ductility
ID ULTRAFINE-GRAINED METALS; POLYCRYSTALLINE NICKEL; BEHAVIOR
AB The high-cycle fatigue behavior of smooth and notched samples of ultrafine-grained titanium prepared by severe plastic deformation is compared with the corresponding properties of conventional titanium. It is shown that the combination of high strength and enhanced ductility of ultrafine-grained titanium lead to an increase of the fatigue endurance limit. Using a combination of equal-channel angular pressing and subsequent thermal and mechanical treatment, it was possible to increase the fatigue endurance limit of commercial-purity titanium by a factor of 1.5. Furthermore, it is shown that post-deformation annealing can additionally enhance the ductility of the ultrafine-grained Ti and lower fatigue-notch sensitivity particularly in comparison with Ti-6Al-4V. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Semenova, I. P.; Salimgareeva, G. Kh.; Latysh, V. V.; Valiev, R. Z.] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia.
[Lowe, T.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Semenova, IP (reprint author), Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia.
EM Semenova-ip@mail.ru
RI Semenova, Irina/K-7508-2014
NR 19
TC 35
Z9 37
U1 0
U2 12
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 MAR 15
PY 2009
VL 503
IS 1-2
BP 92
EP 95
DI 10.1016/j.msea.2008.07.075
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 414OD
UT WOS:000263873100023
ER
PT J
AU Saldana, C
Yang, P
Mann, JB
Moscoso, W
Gill, DD
Chandrasekar, S
Trumble, KP
AF Saldana, C.
Yang, P.
Mann, J. B.
Moscoso, W.
Gill, D. D.
Chandrasekar, S.
Trumble, K. P.
TI Micro-scale components from high-strength nanostructured alloys
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article; Proceedings Paper
CT 1st International Symposium on Bulk Nanostructures Materials - From
Fundamentals to Innovations
CY AUG 14-18, 2007
CL Ufa State Aviat Tech Univ, Ufa, RUSSIA
HO Ufa State Aviat Tech Univ
DE Severe plastic deformation; Machining; Nanostructured alloys;
Micro-fabrication
ID SEVERE PLASTIC-DEFORMATION; STRAIN; TEMPERATURE; REFINEMENT; TITANIUM
AB A general approach for manufacturing of micro-scale components from high-strength, nanostructured materials is presented. The approach utilizes severe plastic deformation by large-strain extrusion machining to create the nanostructured material in a high-strength alloy system, and conventional micro-machining to produce the components. Manufacture of small-scale gears from nickel-based superalloy Inconel 718 is illustrated. (c) 2008 Elsevier B.V. All rights reserved.
C1 [Saldana, C.; Mann, J. B.; Moscoso, W.; Chandrasekar, S.] Purdue Univ, Sch Ind Engn, Ctr Mat Proc & Tribol, W Lafayette, IN 47907 USA.
[Trumble, K. P.] Purdue Univ, Sch Mat Engn, Ctr Mat Proc & Tribol, W Lafayette, IN 47907 USA.
[Yang, P.; Gill, D. D.] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Chandrasekar, S (reprint author), Purdue Univ, Sch Ind Engn, Ctr Mat Proc & Tribol, W Lafayette, IN 47907 USA.
EM chandy@ecn.purdue.edu
NR 16
TC 4
Z9 7
U1 2
U2 5
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 MAR 15
PY 2009
VL 503
IS 1-2
BP 172
EP 175
DI 10.1016/j.msea.2008.02.056
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 414OD
UT WOS:000263873100043
ER
PT J
AU Coyle, SM
Gilbert, WV
Doudna, JA
AF Coyle, Scott M.
Gilbert, Wendy V.
Doudna, Jennifer A.
TI Direct Link between RACK1 Function and Localization at the Ribosome In
Vivo
SO MOLECULAR AND CELLULAR BIOLOGY
LA English
DT Article
ID PROTEIN-KINASE-C; HETEROTRIMERIC G-PROTEIN; SACCHAROMYCES-CEREVISIAE;
TRANSLATIONAL REGULATION; SIGNAL-TRANSDUCTION; SCAFFOLD PROTEIN;
MAMMALIAN RACK1; MESSENGER-RNAS; BETA-SUBUNIT; WD-REPEAT
AB The receptor for activated C-kinase (RACK1), a conserved protein implicated in numerous signaling pathways, is a stoichiometric component of eukaryotic ribosomes located on the head of the 40S ribosomal subunit. To test the hypothesis that ribosome association is central to the function of RACK1 in vivo, we determined the 2.1-angstrom crystal structure of RACK1 from Saccharomyces cerevisiae (Asc1p) and used it to design eight mutant versions of RACK1 to assess roles in ribosome binding and in vivo function. Conserved charged amino acids on one side of the beta-propeller structure were found to confer most of the 40S subunit binding affinity, whereas an adjacent conserved and structured loop had little effect on RACK1-ribosome association. Yeast mutations that confer moderate to strong defects in ribosome binding mimic some phenotypes of a RACK1 deletion strain, including increased sensitivity to drugs affecting cell wall biosynthesis and translation elongation. Furthermore, disruption of RACK1's position at the 40S ribosomal subunit results in the failure of the mRNA binding protein Scp160 to associate with actively translating ribosomes. These results provide the first direct evidence that RACK1 functions from the ribosome, implying a physical link between the eukaryotic ribosome and cell signaling pathways in vivo.
C1 [Coyle, Scott M.; Gilbert, Wendy V.; Doudna, Jennifer A.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Doudna, Jennifer A.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Doudna, Jennifer A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Doudna, Jennifer A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Doudna, JA (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
EM doudna@berkeley.edu
OI /0000-0003-2807-9657
FU NIH
FX This work was supported by a grant from the NIH and a gift from Gilead
Inc. to J. A. D.; W. V. G. is supported by a K99 award from the NIH.
NR 44
TC 72
Z9 74
U1 0
U2 12
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0270-7306
J9 MOL CELL BIOL
JI Mol. Cell. Biol.
PD MAR 15
PY 2009
VL 29
IS 6
BP 1626
EP 1634
DI 10.1128/MCB.01718-08
PG 9
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 412JB
UT WOS:000263720000021
PM 19114558
ER
PT J
AU Liang, ZT
Wang, XN
Zhou, J
AF Liang, Zuo-tang
Wang, Xin-Nian
Zhou, Jian
TI Multiple parton scattering in nuclei: Gauge invariance
SO NUCLEAR PHYSICS A
LA English
DT Article
ID MODIFIED FRAGMENTATION FUNCTIONS; FINAL-STATE INTERACTIONS; DRELL-YAN
PROCESS; ENERGY-LOSS; DISTRIBUTIONS; DEPENDENCE
AB Within the framework of it generalized collinear factorization for multiple parton scattering in nuclear medium. twist-4 contributions to DIS off a large nucleus can be factorized as a convolution of hard parts and two-parton correlation functions. The hard parts for the quark scattering in the light-cone gauge cot-respond to interaction with a transverse (physical) gluon in the target, while they are given by the second derivative of the cross section with it longitudinal gluon in the covariant gauge. We provide a general proof of the equivalence of the hard pails in file light-cone and covariant, gauge. We further demonstrate the equivalence in calculations of twist-4 contributions to semi-inclusive cross section of DIS in both lowest order and next leading order. Calculations of the nuclear transverse momentum broadening of the struck quark in the light-cone and covariant gauge are also discussed. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Wang, Xin-Nian; Zhou, Jian] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Liang, Zuo-tang; Wang, Xin-Nian; Zhou, Jian] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China.
RP Wang, XN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, MS 70R0319, Berkeley, CA 94720 USA.
EM xnwang@lbl.gov
OI Wang, Xin-Nian/0000-0002-9734-9967
FU US Department of Energy [DE-AC02-05CH11231]; National Natural Science
Foundation of China [10525523]
FX This work is supported by the Director, Office of Energy Research,
Office of High Energy and Nuclear Physics, Division of Nuclear Physics,
of the US Department of Energy under Contract No. DE-AC02-05CH11231 and
National Natural Science Foundation of China under Project No.10525523.
NR 36
TC 5
Z9 5
U1 0
U2 0
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 MAR 15
PY 2009
VL 819
BP 79
EP 97
DI 10.1016/j.nuclphysa.2008.11.009
PG 19
WC Physics, Nuclear
SC Physics
GA 424CI
UT WOS:000264542700005
ER
PT J
AU Kulkarni, SS
Lapedes, A
Tang, H
Gnanakaran, S
Daniels, MG
Zhang, M
Bhattacharya, T
Li, M
Polonis, VR
McCutchan, FE
Morris, L
Ellenberger, D
Butera, ST
Bollinger, RC
Korber, BT
Paranjape, RS
Montefiori, DC
AF Kulkarni, Smita S.
Lapedes, Alan
Tang, Haili
Gnanakaran, S.
Daniels, Marcus G.
Zhang, Ming
Bhattacharya, Tanmoy
Li, Ming
Polonis, Victoria R.
McCutchan, Francine E.
Morris, Lynn
Ellenberger, Dennis
Butera, Salvatore T.
Bollinger, Robert C.
Korber, Bette T.
Paranjape, Ramesh S.
Montefiori, David C.
TI Highly complex neutralization determinants on a monophyletic lineage of
newly transmitted subtype C HIV-1 Env clones from India
SO VIROLOGY
LA English
DT Review
DE HIV-1; Neutralizing antibodies; Envelope glycoproteins; Genetic
signatures; Heatmap
ID HUMAN-IMMUNODEFICIENCY-VIRUS; GP120 ENVELOPE GLYCOPROTEIN; PROXIMAL
EXTERNAL REGION; CELL-SURFACE EXPRESSION; CORECEPTOR BINDING-SITE; GP41
CYTOPLASMIC TAIL; TYPE-1 ENVELOPE; ANTIBODY NEUTRALIZATION;
MONOCLONAL-ANTIBODIES; GENETIC DIVERSITY
AB Little is known about the neutralization properties of HIV-1 in India to optimally design and test vaccines. For this reason, a functional Env clone was obtained from each of ten newly acquired, heterosexually transmitted HIV-1 infections in Pune, Maharashtra, These clones formed a phylogenetically distinct genetic lineage within subtype C. As Env-pseudotyped Viruses the clones were mostly resistant to IgG1b12, 2G12 and 2F5 but all were sensitive to 4E10. When compared to a large multi-subtype panel of Env-pseudotyped viruses (subtypes B, C and CRF02_AG) in neutralization assays with a multi-subtype panel of HIV-1-positive plasma samples, the Indian Envs were remarkably complex. With the exception of the Indian Envs, results of a hierarchical clustering analysis showed a strong subtype association with the patterns of neutralization susceptibility. From these patterns we were able to identify 19 neutralization cluster-associated amino acid signatures in gp120 and 14 signatures in the ectodomain and cytoplasmic tail of gp41. We conclude that newly transmitted Indian Envs are antigenically complex in spite of close genetic similarity. Delineation of neutralization-associated amino acid signatures provides a deeper understanding of the antigenic structure of HIV-1 Env. (c) 2008 Elsevier Inc. All rights reserved.
C1 [Tang, Haili; Li, Ming; Montefiori, David C.] Duke Univ, Med Ctr, Dept Surg, Durham, NC 27710 USA.
[Kulkarni, Smita S.; Paranjape, Ramesh S.] Natl AIDS Res Inst, Pune, Maharashtra, India.
[Lapedes, Alan; Gnanakaran, S.; Daniels, Marcus G.; Zhang, Ming; Bhattacharya, Tanmoy; Korber, Bette T.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Polonis, Victoria R.; McCutchan, Francine E.] Walter Reed Army Inst Res, Rockville, MD 20850 USA.
[Polonis, Victoria R.; McCutchan, Francine E.] Henry M Jackson Fdn, Rockville, MD 20850 USA.
[Morris, Lynn] Natl Inst Communicable Dis, Johannesburg, South Africa.
[Ellenberger, Dennis; Butera, Salvatore T.] Ctr Dis Control & Prevent, Atlanta, GA 30333 USA.
[Bollinger, Robert C.] Johns Hopkins Sch Med, Dept Med, Div Infect Dis, Baltimore, MD USA.
RP Montefiori, DC (reprint author), Duke Univ, Med Ctr, Dept Surg, Box 2926, Durham, NC 27710 USA.
EM monte@duke.edu
RI Bhattacharya, Tanmoy/J-8956-2013;
OI Bhattacharya, Tanmoy/0000-0002-1060-652X; , Lynn/0000-0003-3961-7828;
Gnanakaran, S/0000-0002-9368-3044; Korber, Bette/0000-0002-2026-5757
FU National Institute of Allergy and Infectious Diseases, National
Institutes of Health (NIAID, NIH) [A130034]; NIAID, NIH [Al 33879-02];
NIH-NCRR OPD-GCRC [5MOIRR00722]; Indian Council of Medical Research
FX We gratefully acknowledge the staff of the "Acute Pathogenesis of HIV-1
Infection" project, National AIDS Research Institute, Pune, India who
helped in collecting the samples and in generating the data. This work
was funded by the National Institute of Allergy and Infectious Diseases,
National Institutes of Health (NIAID, NIH) (A130034) and by the Bill and
Melinda Gates Foundation (#38619). This work was also supported in part
by NIAID, NIH (Al 33879-02), NIH-NCRR OPD-GCRC (5MOIRR00722), the
NIH-Fogarty International Center (D43TW0000), and intramural research
grants from the Indian Council of Medical Research.
NR 111
TC 47
Z9 47
U1 2
U2 8
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0042-6822
J9 VIROLOGY
JI Virology
PD MAR 15
PY 2009
VL 385
IS 2
BP 505
EP 520
DI 10.1016/j.virol.2008.12.032
PG 16
WC Virology
SC Virology
GA 419XE
UT WOS:000264252200024
PM 19167740
ER
PT J
AU Akin, MC
Petrik, NG
Kimmel, GA
AF Akin, Minta C.
Petrik, Nikolay G.
Kimmel, Greg A.
TI Electron-stimulated reactions and O-2 production in methanol-covered
amorphous solid water films
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE electron stimulated desorption; free radical reactions; ice; monolayers;
organic compounds; reaction kinetics; surface chemistry; thin films
ID OUTER SOLAR-SYSTEM; LOW-ENERGY ELECTRONS; HYDROGEN-PEROXIDE;
MOLECULAR-HYDROGEN; LIQUID METHANOL; D2O ICE; CONDENSED METHANOL;
GAMMA-RADIOLYSIS; CRYSTALLINE ICE; LIGHT-IONS
AB The low-energy, electron-stimulated desorption (ESD) of molecular products from amorphous solid water (ASW) films capped with methanol is investigated versus methanol coverage (0-4x10(15) cm(-2)) at 50 K using 100 eV incident electrons. The major ESD products from a monolayer (ML) of methanol on ASW are quite similar to the ESD products from bulk methanol film: H-2, CH4, H2O, C2H6, CO, CH2O, and CH3OH. For 40 ML ASW films, the molecular oxygen, hydrogen, and water ESD yields from the ASW are suppressed with increasing methanol coverage, while the CH3OH ESD yield increases proportionally to the methanol coverage. The suppression of the water ESD products by methanol is consistent with the nonthermal reactions occurring preferentially at or near the ASW/vacuum interface and not in the interior of the film. The water and molecular hydrogen ESD yields from the water layer decrease exponentially with the methanol cap coverage with 1/e constants of similar to 6x10(14) and 1.6x10(15) cm(-2), respectively. In contrast, the O-2 ESD from the water layer is very efficiently quenched by small amounts of methanol (1/e similar to 6.5x10(13) cm(-2)). The rapid suppression of O-2 production by small amounts of methanol is due to reactions between CH3OH and the precursors for the O-2-mainly OH radicals. A kinetic model for the O-2 ESD, which semiquantitatively accounts for the observations, is presented.
C1 [Petrik, Nikolay G.; Kimmel, Greg A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Akin, Minta C.] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA.
RP Kimmel, GA (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, POB 999,M-S K8-88, Richland, WA 99352 USA.
EM gregory.kimmel@pnl.gov
RI Petrik, Nikolay/G-3267-2015
OI Petrik, Nikolay/0000-0001-7129-0752
FU U. S. Department of Energy (DOE), Office of Basic Energy Sciences,
Chemical and Materials Sciences Division [DE-AC06-76RLO 1830]; Welch
Foundation [F-1436]
FX This work was supported by the U. S. Department of Energy (DOE), Office
of Basic Energy Sciences, Chemical and Materials Sciences Division. The
work was performed at the W. R. Wiley Environmental Molecular Sciences
Laboratory, a national scientific user facility sponsored by the DOE,
Office of Biological and Environmental Research and located at Pacific
Northwest National Laboratory, which is operated for DOE by Battelle
Memorial Institute under Contract No. DE-AC06-76RLO 1830. M. C. A. was
supported by the Welch Foundation (Grant No. F-1436) during her stay at
Pacific Northwest National Laboratory.
NR 99
TC 5
Z9 5
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 14
PY 2009
VL 130
IS 10
AR 104710
DI 10.1063/1.3081879
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 420IF
UT WOS:000264281800036
PM 19292552
ER
PT J
AU Bardhan, JP
Knepley, MG
Anitescu, M
AF Bardhan, Jaydeep P.
Knepley, Matthew G.
Anitescu, Mihai
TI Bounding the electrostatic free energies associated with linear
continuum models of molecular solvation
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE biochemistry; electrostatics; free energy; molecular biophysics;
molecular configurations; molecular dynamics method; partial
differential equations; proteins; solvation
ID GENERALIZED BORN MODEL; IMPLICIT SOLVENT MODELS; BOUNDARY-ELEMENT
METHOD; DIRICHLET-NEUMANN MAP; EXPLICIT SOLVENT; DYNAMICS SIMULATIONS;
INTEGRAL OPERATOR; QUANTUM-MECHANICS; DIELECTRIC MEDIA; ANALYTICAL SHAPE
AB The importance of electrostatic interactions in molecular biology has driven extensive research toward the development of accurate and efficient theoretical and computational models. Linear continuum electrostatic theory has been surprisingly successful, but the computational costs associated with solving the associated partial differential equations (PDEs) preclude the theory's use in most dynamical simulations. Modern generalized-Born models for electrostatics can reproduce PDE-based calculations to within a few percent and are extremely computationally efficient but do not always faithfully reproduce interactions between chemical groups. Recent work has shown that a boundary-integral-equation formulation of the PDE problem leads naturally to a new approach called boundary-integral-based electrostatics estimation (BIBEE) to approximate electrostatic interactions. In the present paper, we prove that the BIBEE method can be used to rigorously bound the actual continuum-theory electrostatic free energy. The bounds are validated using a set of more than 600 proteins. Detailed numerical results are presented for structures of the peptide met-enkephalin taken from a molecular-dynamics simulation. These bounds, in combination with our demonstration that the BIBEE methods accurately reproduce pairwise interactions, suggest a new approach toward building a highly accurate yet computationally tractable electrostatic model.
C1 [Bardhan, Jaydeep P.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Bardhan, Jaydeep P.; Knepley, Matthew G.] Rush Univ, Dept Mol Biophys & Physiol, Chicago, IL 60612 USA.
[Knepley, Matthew G.; Anitescu, Mihai] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
RP Bardhan, JP (reprint author), Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
EM jbardhan@alum.mit.edu
RI Knepley, Matthew/C-1094-2015
OI Knepley, Matthew/0000-0002-2292-0735
FU Office of Advanced Scientific Computing Research, Office of Science,
U.S. Department of Energy [DE-AC0206CH11357]
FX The authors thank B. Roux for the use of CHARMM. J.P.B. gratefully
acknowledges support from a Wilkinson Fellowship in Scientific
Computing. This work was supported by the Mathematical, Information, and
Computational Sciences Division Subprogram of the Office of Advanced
Scientific Computing Research, Office of Science, U.S. Department of
Energy under Contract No. DE-AC0206CH11357.
NR 94
TC 7
Z9 7
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 14
PY 2009
VL 130
IS 10
AR 104108
DI 10.1063/1.3081148
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 420IF
UT WOS:000264281800008
PM 19292524
ER
PT J
AU Crooks, GE
AF Crooks, G. E.
TI Comment regarding "On the Crooks fluctuation theorem and the Jarzynski
equality" [J. Chem. Phys. 129, 091101 (2008)] and "Nonequilibrium
fluctuation-dissipation theorem of Brownian dynamics" [J. Chem. Phys.
129, 144113 (2008)]
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Letter
DE Brownian motion; fluctuations
ID FREE-ENERGY DIFFERENCES; SYSTEMS
AB The incongruous "unexpected inapplicability of the Crook's fluctuation theorem" is due to an inexplicable, inappropriate use of inconsistent expressions. The girding is secure.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Crooks, GE (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM gecrooks@lbl.gov
RI Crooks, Gavin/H-7111-2012
NR 6
TC 10
Z9 10
U1 0
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 14
PY 2009
VL 130
IS 10
AR 107101
DI 10.1063/1.3080751
PG 1
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 420IF
UT WOS:000264281800042
PM 19292558
ER
PT J
AU Miller, RL
Slingo, A
Barnard, JC
Kassianov, E
AF Miller, R. L.
Slingo, A.
Barnard, J. C.
Kassianov, E.
TI Seasonal contrast in the surface energy balance of the Sahel
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID RADIATIVE FLUX DIVERGENCE; ECLATS FIELD EXPERIMENT; LEAF-AREA INDEX;
RAINFALL VARIABILITY; SAHARAN AEROSOLS; WEST-AFRICA; CLIMATE; BUDGET;
PRECIPITATION; EVAPORATION
AB Over much of the world, heating of the surface by sunlight is balanced predominately by evaporative cooling. However, at the Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF) in Niamey, Niger, evaporation makes a significant contribution to the surface energy balance only at the height of the rainy season, when precipitation has replenished the reservoir of soil moisture. The AMF was placed at Niamey from late 2005 to early 2007 to provide measurements of surface fluxes in coordination with geostationary satellite retrievals of radiative fluxes at the top of the atmosphere, as part of the RADAGAST experiment to calculate atmospheric radiative divergence. We use observations at the mobile facility to investigate how the surface adjusts to radiative forcing throughout the year. The surface response to solar heating varies with changes in atmospheric water vapor associated with the seasonal reversal of the West African monsoon, which modulates the greenhouse effect and the ability of the surface to radiate thermal energy directly to space. During the dry season, sunlight is balanced mainly by longwave radiation and the turbulent flux of sensible heat. The ability of longwave radiation to cool the surface drops after the onset of southwesterly surface winds at Niamey, when moist, oceanic air flows onshore, increasing local column moisture and atmospheric opacity. Following the onset of southwesterly flow, evaporation remains limited by the supply of moisture from precipitation. By the height of the rainy season, however, sufficient precipitation has accumulated that evaporation is controlled by incident sunlight, and radiative forcing of the surface is balanced comparably by the latent, sensible, and longwave fluxes. Evaporation increases with the leaf area index, suggesting that plants are a significant source of atmospheric moisture and may tap moisture stored beneath the surface that accumulated during a previous rainy season. Surface radiative forcing during a dust aerosol outbreak is balanced comparably by net surface longwave and the sensible heat flux during the dry season, with the sensible flux increasing in importance with the onset of the summer monsoon winds. Measurements of surface fluxes by the AMF indicate broader features of the West African monsoon circulation and should be used to evaluate model simulations of the Sahel climate.
C1 [Miller, R. L.] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Barnard, J. C.; Kassianov, E.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Miller, R. L.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA.
[Slingo, A.] Univ Reading, Environm Syst Sci Ctr, Reading, Berks, England.
RP Miller, RL (reprint author), NASA, Goddard Inst Space Studies, 2880 Broadway, New York, NY 10025 USA.
EM rmiller@giss.nasa.gov
RI Miller, Ron/E-1902-2012
FU Atmospheric Radiation Measurement (ARM) Program; U.S. Department of
Energy, Office of Science, Office of Biological and Environmental
Research, Environmental Sciences Division; National Science Foundation
[ATM-06-20066]; The Pacific Northwest National Laboratory; Battelle
Memorial Institute, Pacific Northwest Division; U.S. Department of
Energy (DOE); Atmospheric Radiation Measurement (ARM) [AC05-76RL01830]
FX Data were obtained from the Atmospheric Radiation Measurement (ARM)
Program sponsored by the U.S. Department of Energy, Office of Science,
Office of Biological and Environmental Research, Environmental Sciences
Division. The article was improved by the comments of three anonymous
reviewers. We also thank Nazim Bharmal, Chris Bishop, Brian Cairns,
Anthony Del Genio, Hamidou Hama, Kenneth Kehoe, Randall Koster, Peter
Lamb, Issa Lele, Sally McFarlane, Mark Miller, Sharon Nicholson, Randy
Peppler, Michael Puma, Chris Taylor, Dave Turner, Peng Xian, and Wenze
Yang for their comments and advice. In addition, we thank Didier Tanre
for aerosol retrievals from the AERONET site at Banizoumbou, Niger, and
the Boston University Group for their MODIS vegetation products. This
work was supported by the Climate Dynamics Program of the National
Science Foundation through ATM-06-20066. A. S. was supported by the
United Kingdom Natural Environment Research Council. The Pacific
Northwest National Laboratory is operated by Battelle Memorial
Institute, Pacific Northwest Division, for the U.S. Department of Energy
(DOE). This research was supported in part by the DOE office of
Biological and Environmental Research through the Atmospheric Radiation
Measurement (ARM) program under contract DE-AC05-76RL01830 to the
Pacific Northwest National Laboratory. This article is dedicated to the
memory of Christopher Bishop and Anthony Slingo.
NR 54
TC 8
Z9 8
U1 0
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAR 14
PY 2009
VL 114
AR D00E05
DI 10.1029/2008JD010521
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 419PG
UT WOS:000264231000002
ER
PT J
AU Chen, CS
Nelson, CM
Khauv, D
Bennett, S
Radisky, ES
Hirai, Y
Bissell, MJ
Radisky, DC
AF Chen, Connie S.
Nelson, Celeste M.
Khauv, Davitte
Bennett, Simone
Radisky, Evette S.
Hirai, Yohei
Bissell, Mina J.
Radisky, Derek C.
TI Homology with Vesicle Fusion Mediator Syntaxin-1a Predicts Determinants
of Epimorphin/Syntaxin-2 Function in Mammary Epithelial Morphogenesis
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID BINDING-PROTEIN-BETA; ENRICHED INHIBITORY PROTEIN; C/EBP-BETA;
EPIMORPHIN EXPRESSION; MESSENGER-RNA; SNARE COMPLEX; TRANSCRIPTIONAL
ACTIVATOR; BRANCHING MORPHOGENESIS; 3-DIMENSIONAL STRUCTURE;
UBIQUITINATED-CARGO
AB We have shown that branching morphogenesis of mammary ductal structures requires the action of the morphogen epimorphin/syntaxin-2. Epimorphin, originally identified as an extracellular molecule, is identical to syntaxin-2, an intracellular molecule that is a member of the extensively investigated syntaxin family of proteins that mediate vesicle trafficking. We show here that, although epimorphin/syntaxin-2 is highly homologous to syntaxin-1a, only epimorphin/syntaxin-2 can stimulate mammary branching morphogenesis. We construct a homology model of epimorphin/syntaxin-2 based on the published structure of syntaxin-1a, and we use this model to identify the structural motif responsible for the morphogenic activity. We identify four residues located within the cleft between helices B and C that differ between syntaxin-1a and epimorphin/syntaxin-2; through site-directed mutagenesis of these four amino acids, we confer the properties of epimorphin for cell adhesion, gene activation, and branching morphogenesis onto the inactive syntaxin-1a template. These results provide a dramatic demonstration of the use of structural information about one molecule to define a functional motif of a second molecule that is related at the sequence level but highly divergent functionally.
C1 [Chen, Connie S.; Bennett, Simone; Bissell, Mina J.; Radisky, Derek C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Nelson, Celeste M.] Princeton Univ, Dept Chem Engn, Princeton, NJ 08544 USA.
[Khauv, Davitte; Radisky, Evette S.; Radisky, Derek C.] Mayo Clin, Ctr Canc, Jacksonville, FL 32224 USA.
[Hirai, Yohei] Kyoto Univ, Inst Frontier Med Sci, Dept Morphoregulat, Sakyo Ku, Kyoto 6068507, Japan.
RP Bissell, MJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd,MS 977, Berkeley, CA 94720 USA.
EM mjbissell@lbl.gov; radisky.derek@mayo.edu
RI Radisky, Evette/C-8526-2012
OI Radisky, Evette/0000-0003-3121-109X
FU NCI NIH HHS [CA122086, CA128660, CA57621, CA64786]
NR 67
TC 23
Z9 23
U1 1
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 MAR 13
PY 2009
VL 284
IS 11
BP 6877
EP 6884
DI 10.1074/jbc.M805908200
PG 8
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 415FF
UT WOS:000263919000035
PM 19129200
ER
PT J
AU Dubini, A
Mus, F
Seibert, M
Grossman, AR
Posewitz, MC
AF Dubini, Alexandra
Mus, Florence
Seibert, Michael
Grossman, Arthur R.
Posewitz, Matthew C.
TI Flexibility in Anaerobic Metabolism as Revealed in a Mutant of
Chlamydomonas reinhardtii Lacking Hydrogenase Activity
SO JOURNAL OF BIOLOGICAL CHEMISTRY
LA English
DT Article
ID PYRUVATE FORMATE-LYASE; ESCHERICHIA-COLI; GENE-EXPRESSION; SUCCINIC
ACID; SULFATE RESPIRATION; FE-HYDROGENASE; H-2 PRODUCTION; ATP
SYNTHESIS; GREEN-ALGAE; PATHWAYS
AB The green alga Chlamydomonas reinhardtii has a network of fermentation pathways that become active when cells acclimate to anoxia. Hydrogenase activity is an important component of this metabolism, and we have compared metabolic and regulatory responses that accompany anaerobiosis in wild-type C. reinhardtii cells and a null mutant strain for the HYDEF gene (hydEF-1 mutant), which encodes an [FeFe] hydrogenase maturation protein. This mutant has no hydrogenase activity and exhibits elevated accumulation of succinate and diminished production of CO(2) relative to the parental strain during dark, anaerobic metabolism. In the absence of hydrogenase activity, increased succinate accumulation suggests that the cells activate alternative pathways for pyruvate metabolism, which contribute to NAD(P)H reoxidation, and continued glycolysis and fermentation in the absence of O(2). Fermentative succinate production potentially proceeds via the formation of malate, and increases in the abundance of mRNAs encoding two malate-forming enzymes, pyruvate carboxylase and malic enzyme, are observed in the mutant relative to the parental strain following transfer of cells from oxic to anoxic conditions. Although C. reinhardtii has a single gene encoding pyruvate carboxylase, it has six genes encoding putative malic enzymes. Only one of the malic enzyme genes, MME4, shows a dramatic increase in expression (mRNA abundance) in the hydEF-1 mutant during anaerobiosis. Furthermore, there are marked increases in transcripts encoding fumarase and fumarate reductase, enzymes putatively required to convert malate to succinate. These results illustrate the marked metabolic flexibility of C. reinhardtii and contribute to the development of an informed model of anaerobic metabolism in this and potentially other algae.
C1 [Dubini, Alexandra; Seibert, Michael; Posewitz, Matthew C.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Dubini, Alexandra] Colorado Sch Mines, Environm Sci & Engn Div, Golden, CO 80401 USA.
[Posewitz, Matthew C.] Colorado Sch Mines, Dept Chem & Geochem, Golden, CO 80401 USA.
[Mus, Florence; Grossman, Arthur R.] Carnegie Inst Washington, Dept Plant Biol, Stanford, CA 94305 USA.
RP Posewitz, MC (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM matthew_posewitz@nrel.gov
RI dubini, alexandra /A-7252-2016
OI dubini, alexandra /0000-0001-8825-3915
FU Office of Biological and Environmental Research; GTL; Office of Science;
United States Department of Energy; National Science Foundation [MCB
0235878]; Air Force Office of Scientific Research [FA9550-05-1-0365]
FX This work was supported by the Office of Biological and Environmental
Research, GTL Program, Office of Science, United States Department of
Energy (to A. R. G., M. C. P., and M. S.), by National Science
Foundation Grant MCB 0235878 (to A. R. G.), and by Air Force Office of
Scientific Research Grant FA9550-05-1-0365 (to M. C. P.).
NR 57
TC 68
Z9 68
U1 1
U2 18
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 MAR 13
PY 2009
VL 284
IS 11
BP 7201
EP 7213
DI 10.1074/jbc.M803917200
PG 13
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 415FF
UT WOS:000263919000067
PM 19117946
ER
PT J
AU Aaltonen, T
Adelman, J
Akimoto, T
Albrow, MG
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Apresyan, A
Arisawa, T
Artikov, A
Ashmanskas, W
Attal, A
Aurisano, A
Azfar, F
Azzurri, P
Badgett, W
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Bartsch, V
Bauer, G
Beauchemin, PH
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Beringer, J
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Blair, RE
Blocker, C
Blumenfeld, B
Bocci, A
Bodek, A
Boisvert, V
Bolla, G
Bortoletto, D
Boudreau, J
Boveia, A
Brau, B
Bridgeman, A
Brigliadori, L
Bromberg, C
Brubaker, E
Budagov, J
Budd, HS
Budd, S
Burke, S
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Byrum, KL
Cabrera, S
Calancha, C
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
Choudalakis, G
Chuang, SH
Chung, K
Chung, WH
Chung, YS
Chwalek, T
Ciobanu, CI
Ciocci, MA
Clark, A
Clark, D
Compostella, G
Convery, ME
Conway, J
Cordelli, M
Cortiana, G
Cox, CA
Cox, DJ
Crescioli, F
Almenar, CC
Cuevas, J
Culbertson, R
Cully, JC
Dagenhart, D
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
Derwent, PF
di Giovanni, GP
Dionisi, C
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Donini, J
Dorigo, T
Dube, S
Efron, J
Elagin, A
Erbacher, R
Errede, D
Errede, S
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
Genser, K
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
Gonzales, 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, K
Hahn, SR
Halkiadakis, E
Han, BY
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harper, S
Harr, RF
Harris, RM
Hartz, M
Hatakeyama, K
Hays, C
Heck, M
Heijboer, A
Heinrich, J
Henderson, C
Herndon, M
Heuser, J
Hewamanage, S
Hidas, D
Hill, CS
Hirschbuehl, D
Hocker, A
Hou, S
Houlden, M
Hsu, SC
Huffman, BT
Hughes, RE
Husemann, U
Huston, J
Incandela, J
Introzzi, G
Iori, M
Ivanov, A
James, E
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
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
Knuteson, B
Ko, BR
Kondo, K
Kong, DJ
Konigsberg, J
Korytov, A
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Krumnack, N
Kruse, M
Krutelyov, V
Kubo, T
Kuhr, T
Kulkarni, NP
Kurata, M
Kusakabe, Y
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, SW
Leone, S
Lewis, JD
Lin, CS
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, T
Lockyer, NS
Loginov, A
Loreti, M
Lovas, L
Lucchesi, D
Luci, C
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lyons, L
Lys, J
Lysak, R
MacQueen, D
Madrak, R
Maeshima, K
Makhoul, K
Maki, T
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
Maruyama, T
Mastrandrea, P
Masubuchi, T
Mathis, M
Mattson, ME
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Menzione, A
Merkel, P
Mesropian, C
Miao, T
Miladinovic, N
Miller, R
Mills, C
Milnik, M
Mitra, A
Mitselmakher, G
Miyake, H
Moggi, N
Moon, CS
Moore, R
Morello, MJ
Morlok, J
Fernandez, PM
Mulmenstadt, J
Mukherjee, A
Muller, T
Mumford, R
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Nagano, A
Naganoma, J
Nakamura, K
Nakano, I
Napier, A
Necula, V
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
Griso, SP
Palencia, E
Papadimitriou, V
Papaikonomou, A
Paramonov, 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
Poukhov, O
Pounder, N
Prakoshyn, F
Pronko, A
Proudfoot, J
Ptohos, F
Pueschel, E
Punzi, G
Pursley, J
Rademacker, J
Rahaman, A
Ramakrishnan, V
Ranjan, N
Redondo, I
Rekovic, V
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
Safonov, A
Sakumoto, WK
Salto, O
Santi, L
Sarkar, S
Sartori, L
Sato, K
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
Sidoti, A
Sinervo, P
Sisakyan, A
Slaughter, AJ
Slaunwhite, J
Sliwa, K
Smith, JR
Snider, FD
Snihur, R
Soha, A
Somalwar, S
Sorin, V
Spalding, J
Spreitzer, T
Squillacioti, P
Stanitzki, M
St Denis, R
Stelzer, B
Stelzer-Chilton, O
Stentz, D
Strologas, J
Strycker, GL
Stuart, D
Suh, JS
Sukhanov, A
Suslov, I
Suzuki, T
Taffard, A
Takashima, R
Takeuchi, Y
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Tecchio, M
Teng, PK
Terashi, K
Thom, J
Thompson, AS
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
Tourneur, S
Trovato, M
Tsai, SY
Tu, Y
Turini, N
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Vallecorsa, S
van Remortel, N
Varganov, A
Vataga, E
Vazquez, F
Velev, G
Vellidis, C
Veszpremi, V
Vidal, M
Vidal, R
Vila, I
Vilar, R
Vine, T
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
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Wolfe, C
Wright, T
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Wurthwein, F
Wynne, SM
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Yagil, A
Yamamoto, K
Yamaoka, J
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Yao, WM
Yeh, GP
Yoh, J
Yorita, K
Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
Zanello, L
Zanetti, A
Zhang, X
Zheng, Y
Zucchelli, S
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Adelman, J.
Akimoto, T.
Albrow, M. G.
Gonzalez, B. Alvarez
Amerio, S.
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Martinez-Ballarin, R.
Maruyama, T.
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Mattson, M. E.
Mazzanti, P.
McFarland, K. S.
McIntyre, P.
McNulty, R.
Mehta, A.
Mehtala, P.
Menzione, A.
Merkel, P.
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Nakano, I.
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Necula, V.
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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.
Griso, S. Pagan
Palencia, E.
Papadimitriou, V.
Papaikonomou, A.
Paramonov, 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.
Poukhov, O.
Pounder, N.
Prakoshyn, F.
Pronko, A.
Proudfoot, J.
Ptohos, F.
Pueschel, E.
Punzi, G.
Pursley, J.
Rademacker, J.
Rahaman, A.
Ramakrishnan, V.
Ranjan, N.
Redondo, I.
Rekovic, V.
Renton, P.
Renz, M.
Rescigno, M.
Richter, S.
Rimondi, F.
Ristori, L.
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Rodrigo, T.
Rodriguez, T.
Rogers, E.
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Roser, R.
Rossi, M.
Rossin, R.
Roy, P.
Ruiz, A.
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Salto, O.
Santi, L.
Sarkar, S.
Sartori, L.
Sato, K.
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.
Sidoti, A.
Sinervo, P.
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Slaughter, A. J.
Slaunwhite, J.
Sliwa, K.
Smith, J. R.
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Snihur, R.
Soha, A.
Somalwar, S.
Sorin, V.
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Stentz, D.
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Suzuki, T.
Taffard, A.
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Thomson, E.
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Waters, D.
Weinberger, M.
Weinelt, J.
Wester, W. C., III
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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.
Wright, T.
Wu, X.
Wuerthwein, F.
Wynne, S. M.
Xie, S.
Yagil, A.
Yamamoto, K.
Yamaoka, J.
Yang, U. K.
Yang, Y. C.
Yao, W. M.
Yeh, G. P.
Yoh, J.
Yorita, K.
Yoshida, T.
Yu, G. B.
Yu, I.
Yu, S. S.
Yun, J. C.
Zanello, L.
Zanetti, A.
Zhang, X.
Zheng, Y.
Zucchelli, S.
TI Measurement of Resonance Parameters of Orbitally Excited Narrow B-0
Mesons
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY-LIGHT MESONS; B-MESONS; DETECTOR; DECAYS; PACKAGE; PHYSICS
AB We report a measurement of resonance parameters of the orbitally excited (L=1) narrow B-0 mesons in decays to B(*)+pi(-) using 1.7 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B-2(*0) state are measured to be m(B-2(*0))=5740.2(-1.8)(+1.7)(stat)(-0.8)(+0.9)(syst) MeV/c(2) and Gamma(B-2(*0))=22.7(-3.2)(+3.8)(stat)(-10.2)(+3.2)(syst) MeV/c(2). The mass difference between the B-2(*0) and B-1(0) states is measured to be 14.9(-2.5)(+2.2)(stat)(-1.4)(+1.2)(syst) MeV/c(2), resulting in a B-1(0) mass of 5725.3(-2.2)(+1.6)(stat)(-1.5)(+1.4)(syst) MeV/c(2). This is currently the most precise measurement of the masses of these states and the first measurement of the B-2(*0) width.
C1 [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.; Proudfoot, J.; Wagner, R. G.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Bartsch, V.; Beecher, D.; Bizjak, I.; Cerrito, L.; Giakoumopoulou, V.; Giokaris, N.; Lancaster, M.; Malik, S.; Manousakis-Katsikakis, A.; Nurse, E.; Vellidis, C.; Vine, T.; Waters, D.] Univ Athens, Athens 15771, Greece.
[Attal, A.; Azfar, F.; Cavalli-Sforza, M.; De Lorenzo, G.; Deluca, C.; D'Onofrio, M.; Farrington, S.; Harper, S.; Hays, C.; Huffman, B. T.; Linacre, J.; Lyons, L.; Malde, S.; Martinez, M.; Oakes, L.; Pounder, N.; Rademacker, J.; Renton, P.; Salto, O.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain.
[Dittmann, J. R.; Frank, M. J.; Hewamanage, S.; Krumnack, N.] Baylor Univ, Waco, TX 76798 USA.
[Castro, A.; Deninno, M.; Jha, M. K.; Mazzanti, P.; Moggi, N.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Ist Nazl Fis Nucl, I-40127 Bologna, Italy.
[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.; Almenar, C. Cuenca; Erbacher, R.; Forrest, R.; Ivanov, A.; Johnson, W.; Lander, R. L.; Lister, A.; Pellett, D. E.; Schwarz, T.; Smith, J. R.; Soha, A.] Univ Calif Davis, Davis, CA 95616 USA.
[Dong, P.; Plager, C.; Stelzer, B.; Wallny, R.; Zheng, Y.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA.
[Norman, M.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, San Diego, CA 92093 USA.
[Boveia, A.; Brau, B.; Garberson, F.; Hill, C. S.; Incandela, J.; Krutelyov, V.; Rossin, R.; Stuart, D.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
[Gonzalez, B. Alvarez; 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.
[Chung, K.; Galyardt, J.; Jun, S. Y.; Paulini, M.; Pueschel, E.; Russ, J.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Adelman, J.; Brubaker, E.; Fedorko, W. T.; Grosso-Pilcher, C.; Kim, Y. K.; Krop, D.; Kwang, S.; Lee, H. S.; Paramonov, A. A.; Schmidt, M. A.; Shiraishi, S.; Shochet, M.; Wilbur, S.; Wolfe, C.; Yang, U. K.; Yorita, K.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Antos, J.; Lovas, L.; Lysak, R.; Tokar, S.] Comenius Univ, Bratislava 84248, Slovakia.
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[Ciobanu, C. I.; di Giovanni, G. P.; Savoy-Navarro, A.; Tourneur, S.] Univ Paris 06, CNRS, IN2P3,UMR7585, LPNHE, F-75252 Paris, France.
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[Boudreau, J.; Gibson, K.; Hartz, M.; Liu, C.; Rahaman, A.; Shepard, P. F.] Univ Pittsburgh, Pittsburgh, PA 15260 USA.
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[Dionisi, C.; Giagu, S.; Iori, M.; Luci, C.; Sarkar, S.; Zanello, L.] Univ Roma La Sapienza, Sez Roma 1, I-00185 Rome, Italy.
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[Cauz, D.; Di Ruzza, B.; Giordani, M.; Pauletta, G.; Santi, L.; Totaro, P.] Univ Trieste Udine, Udine, Italy.
[Akimoto, T.; Hara, K.; Kim, S. H.; Kimura, N.; Kubo, T.; Kurata, M.; Maruyama, T.; Masubuchi, T.; Miyake, H.; Nagai, Y.; Nagano, A.; Naganoma, J.; Nakamura, K.; Shimojima, M.; Suzuki, T.; 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.; Kondo, K.; Kusakabe, Y.] Waseda Univ, Tokyo 169, Japan.
[Harr, R. F.; Karchin, P. E.; Kulkarni, N. P.; Mattson, M. E.; Shalhout, S. Z.] Wayne State Univ, Detroit, MI 48201 USA.
[Bellinger, J.; Carlsmith, D.; Chung, W. H.; Herndon, M.; Nett, J.; Pondrom, L.; Pursley, J.; Ramakrishnan, V.; Shon, Y.] Univ Wisconsin, Madison, WI 53706 USA.
[Feild, R. G.; Husemann, U.; Loginov, A.; Martin, A.; Schmidt, M. P.; Stanitzki, M.; Tipton, P.] Yale Univ, New Haven, CT 06520 USA.
Univ Oxford, Oxford OX1 3RH, England.
[Beauchemin, P. -H.; Buzatu, A.; Carron, S.; MacQueen, D.; Pashapour, S.; Roy, P.; Sinervo, P.; Snihur, R.; Spreitzer, T.; Warburton, A.; Williams, G.] Univ Toronto, Toronto, ON M5S 1A7, Canada.
[Bartsch, V.; Beecher, D.; Lancaster, M.; Malik, S.; Nurse, E.; Vine, T.; Waters, D.] UCL, London WC1E 6BT, England.
[Chang, S. H.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Seoul Natl Univ, Seoul 151742, South Korea.
[Chang, S. H.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Sungkyunkwan Univ, Suwon 440746, South Korea.
[Chang, S. H.; Cho, K.; Jeon, E. J.; Joo, K. K.; Jung, J. E.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea.
[Chang, S. H.; Cho, K.; Jeon, E. J.; Joo, K. K.; Kim, D. H.; Kim, H. S.; Kim, H. W.; Kim, J. E.; Kim, S. B.; Kong, D. J.; Moon, C. S.; Oh, Y. D.; Suh, J. S.; Yang, Y. C.; Yu, I.] Chonnam Natl Univ, Kwangju 500757, South Korea.
[Aaltonen, T.; Maki, T.; Mehtala, P.; Orava, R.; van Remortel, N.] Helsinki Inst Phys, FIN-00014 Helsinki, Finland.
[Antos, J.; Lovas, L.; Lysak, R.; Tokar, S.] Inst Expt Phys, Kosice 04001, Slovakia.
RP Aaltonen, T (reprint author), Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
RI Canelli, Florencia/O-9693-2016; Lazzizzera, Ignazio/E-9678-2015;
Chiarelli, Giorgio/E-8953-2012; 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; Cabrera Urban,
Susana/H-1376-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese
/I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Muelmenstaedt,
Johannes/K-2432-2015; Introzzi, Gianluca/K-2497-2015; Gorelov,
Igor/J-9010-2015; Ruiz, Alberto/E-4473-2011; Moon,
Chang-Seong/J-3619-2014; Robson, Aidan/G-1087-2011; De Cecco,
Sandro/B-1016-2012; St.Denis, Richard/C-8997-2012; manca,
giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi,
Giovanni/J-4947-2012; 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;
OI Canelli, Florencia/0000-0001-6361-2117; Lazzizzera,
Ignazio/0000-0001-5092-7531; Lami, Stefano/0000-0001-9492-0147;
Chiarelli, Giorgio/0000-0001-9851-4816; Giordani,
Mario/0000-0002-0792-6039; Casarsa, Massimo/0000-0002-1353-8964; Vidal
Marono, Miguel/0000-0002-2590-5987; Margaroli,
Fabrizio/0000-0002-3869-0153; Latino, Giuseppe/0000-0002-4098-3502;
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;
ciocci, maria agnese /0000-0003-0002-5462; Muelmenstaedt,
Johannes/0000-0003-1105-6678; Introzzi, Gianluca/0000-0002-1314-2580;
Gorelov, Igor/0000-0001-5570-0133; Ruiz, Alberto/0000-0002-3639-0368;
Moon, Chang-Seong/0000-0001-8229-7829; Punzi,
Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398;
Ivanov, Andrew/0000-0002-9270-5643; Warburton,
Andreas/0000-0002-2298-7315; Group, Robert/0000-0002-4097-5254; iori,
maurizio/0000-0002-6349-0380; Lancaster, Mark/0000-0002-8872-7292;
Nielsen, Jason/0000-0002-9175-4419; Jun, Soon Yung/0000-0003-3370-6109;
Toback, David/0000-0003-3457-4144; Hays, Chris/0000-0003-2371-9723;
Farrington, Sinead/0000-0001-5350-9271; Robson,
Aidan/0000-0002-1659-8284; Gallinaro, Michele/0000-0003-1261-2277;
Torre, Stefano/0000-0002-7565-0118; Turini, Nicola/0000-0002-9395-5230;
Osterberg, Kenneth/0000-0003-4807-0414
FU U. S. Department of Energy and 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; Korean
Science and Engineering Foundation and the Korean Research Foundation;
Science and Technology Facilities Council and the Royal Society, UK;
Institut National de Physique Nucleaire et Physique des Particules/CNRS;
Russian Foundation for Basic Research; Ministerio de Ciencia e
Innovacion, 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 Korean Science and Engineering
Foundation and the Korean Research Foundation; 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, Spain; the Slovak R& D Agency; and the Academy of Finland.
NR 37
TC 24
Z9 24
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 MAR 13
PY 2009
VL 102
IS 10
AR 102003
DI 10.1103/PhysRevLett.102.102003
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500016
ER
PT J
AU Aguilar-Arevalo, AA
Anderson, CE
Bazarko, AO
Brice, SJ
Brown, BC
Bugel, L
Cao, J
Coney, L
Conrad, JM
Cox, DC
Curioni, A
Djurcic, Z
Finley, DA
Fleming, BT
Ford, R
Garcia, FG
Garvey, GT
Green, C
Green, JA
Hart, TL
Hawker, E
Imlay, R
Johnson, RA
Karagiorgi, G
Kasper, P
Katori, T
Kobilarcik, T
Kourbanis, I
Koutsoliotas, S
Laird, EM
Linden, SK
Link, JM
Liu, Y
Liu, Y
Louis, WC
Mahn, KBM
Marsh, W
McGregor, G
Metcalf, W
Meyers, PD
Mills, F
Mills, GB
Monroe, J
Moore, CD
Nelson, RH
Nguyen, VT
Nienaber, P
Nowak, JA
Ouedraogo, S
Patterson, RB
Perevalov, D
Polly, CC
Prebys, E
Raaf, JL
Ray, H
Roe, BP
Russell, AD
Sandberg, V
Schirato, R
Schmitz, D
Shaevitz, MH
Shoemaker, FC
Smith, D
Sodeberg, M
Sorel, M
Spentzouris, P
Stancu, I
Stefanski, RJ
Sung, M
Tanaka, HA
Tayloe, R
Tzanov, M
Van de Water, R
Wascko, MO
White, DH
Wilking, MJ
Yang, HJ
Zeller, GP
Zimmerman, ED
AF Aguilar-Arevalo, A. A.
Anderson, C. E.
Bazarko, A. O.
Brice, S. J.
Brown, B. C.
Bugel, L.
Cao, J.
Coney, L.
Conrad, J. M.
Cox, D. C.
Curioni, A.
Djurcic, Z.
Finley, D. A.
Fleming, B. T.
Ford, R.
Garcia, F. G.
Garvey, G. T.
Green, C.
Green, J. A.
Hart, T. L.
Hawker, E.
Imlay, R.
Johnson, R. A.
Karagiorgi, G.
Kasper, P.
Katori, T.
Kobilarcik, T.
Kourbanis, I.
Koutsoliotas, S.
Laird, E. M.
Linden, S. K.
Link, J. M.
Liu, Y.
Liu, Y.
Louis, W. C.
Mahn, K. B. M.
Marsh, W.
McGregor, G.
Metcalf, W.
Meyers, P. D.
Mills, F.
Mills, G. B.
Monroe, J.
Moore, C. D.
Nelson, R. H.
Nguyen, V. T.
Nienaber, P.
Nowak, J. A.
Ouedraogo, S.
Patterson, R. B.
Perevalov, D.
Polly, C. C.
Prebys, E.
Raaf, J. L.
Ray, H.
Roe, B. P.
Russell, A. D.
Sandberg, V.
Schirato, R.
Schmitz, D.
Shaevitz, M. H.
Shoemaker, F. C.
Smith, D.
Sodeberg, M.
Sorel, M.
Spentzouris, P.
Stancu, I.
Stefanski, R. J.
Sung, M.
Tanaka, H. A.
Tayloe, R.
Tzanov, M.
Van de Water, R.
Wascko, M. O.
White, D. H.
Wilking, M. J.
Yang, H. J.
Zeller, G. P.
Zimmerman, E. D.
TI Unexplained Excess of Electronlike Events from a 1-GeV Neutrino Beam
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PARTICLE-PRODUCTION; LSND EXPERIMENT; GEV/C; OSCILLATIONS; BERYLLIUM;
PROTONS
AB The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46 x 10(20) protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2 +/- 43.4 events, corresponding to an excess of 128.8 +/- 20.4 +/- 38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either nu(e) and (nu) over bar (e) charged-current scattering or nu(mu) neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9 +/- 35.7 events.
C1 [Liu, Y.; Perevalov, D.; Stancu, I.] Univ Alabama, Tuscaloosa, AL 35487 USA.
[Koutsoliotas, S.] Bucknell Univ, Lewisburg, PA 17837 USA.
[Hart, T. L.; Nelson, R. H.; Tzanov, M.; Wilking, M. J.; Zimmerman, E. D.] Univ Colorado, Boulder, CO 80309 USA.
[Aguilar-Arevalo, A. A.; Bugel, L.; Coney, L.; Conrad, J. M.; Djurcic, Z.; Karagiorgi, G.; Mahn, K. B. M.; Monroe, J.; Nguyen, V. T.; Schmitz, D.; Shaevitz, M. H.; Sorel, M.; Zeller, G. P.] Columbia Univ, New York, NY 10027 USA.
[Smith, D.] Embry Riddle Aeronaut Univ, Prescott, AZ 86301 USA.
[Brice, S. J.; Brown, B. C.; Finley, D. A.; Ford, R.; Garcia, F. G.; Green, C.; Kasper, P.; Kobilarcik, T.; Kourbanis, I.; Marsh, W.; Mills, F.; Moore, C. D.; Prebys, E.; Russell, A. D.; Spentzouris, P.; Stefanski, R. J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Ray, H.] Univ Florida, Gainesville, FL 32611 USA.
[Polly, C. C.] Univ Illinois, Urbana, IL 61801 USA.
[Cox, D. C.; Green, J. A.; Katori, T.; Polly, C. C.; Tayloe, R.] Indiana Univ, Bloomington, IN 47405 USA.
[Garvey, G. T.; Green, C.; Green, J. A.; Hawker, E.; Louis, W. C.; McGregor, G.; Mills, G. B.; Ray, H.; Sandberg, V.; Schirato, R.; Van de Water, R.; White, D. H.; Zeller, G. P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Imlay, R.; Metcalf, W.; Nowak, J. A.; Ouedraogo, S.; Sung, M.; Wascko, M. O.] Louisiana State Univ, Baton Rouge, LA 70803 USA.
[Conrad, J. M.; Karagiorgi, G.; Monroe, J.; Nguyen, V. T.] MIT, Cambridge, MA 02139 USA.
[Cao, J.; Liu, Y.; Roe, B. P.; Yang, H. J.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Bazarko, A. O.; Laird, E. M.; Meyers, P. D.; Patterson, R. B.; Shoemaker, F. C.; Tanaka, H. A.] Princeton Univ, Princeton, NJ 08544 USA.
[Nienaber, P.] St Marys Univ Minnesota, Winona, MN 55987 USA.
[Link, J. M.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
[Anderson, C. E.; Curioni, A.; Fleming, B. T.; Linden, S. K.; Sodeberg, M.] Yale Univ, New Haven, CT 06520 USA.
[Hawker, E.; Johnson, R. A.; Raaf, J. L.] Univ Cincinnati, Cincinnati, OH 45221 USA.
RP Aguilar-Arevalo, AA (reprint author), Univ Alabama, Tuscaloosa, AL 35487 USA.
RI Nowak, Jaroslaw/P-2502-2016; Cao, Jun/G-8701-2012; Link,
Jonathan/L-2560-2013; Yang, Haijun/O-1055-2015;
OI Nowak, Jaroslaw/0000-0001-8637-5433; Wascko, Morgan/0000-0002-8348-4447;
Raaf, Jennifer/0000-0002-4533-929X; Louis, William/0000-0002-7579-3709;
Aguilar-Arevalo, Alexis A./0000-0001-9279-3375; Sorel,
Michel/0000-0003-2141-9508; Van de Water, Richard/0000-0002-1573-327X;
Cao, Jun/0000-0002-3586-2319; Link, Jonathan/0000-0002-1514-0650;
Katori, Teppei/0000-0002-9429-9482; Schirato,
Richard/0000-0002-4216-0235; Schmitz, David/0000-0003-2165-7389
FU Fermilab; Department of Energy; National Science Foundation; Los Alamos
National Laboratory
FX We acknowledge the support of Fermilab, the Department of Energy, and
the National Science Foundation, and we acknowledge Los Alamos National
Laboratory for LDRD funding. In addition, we acknowledge theoretical
input from Tina Leitner and Ulrich Mosel on the Delta -> N gamma
background.
NR 38
TC 232
Z9 232
U1 3
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 MAR 13
PY 2009
VL 102
IS 10
AR 101802
DI 10.1103/PhysRevLett.102.101802
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500013
PM 19392103
ER
PT J
AU Battaglieri, M
De Vita, R
Szczepaniak, AP
Adhikari, KP
Aghasyan, M
Amaryan, MJ
Ambrozewicz, P
Anghinolfi, M
Asryan, G
Avakian, H
Bagdasaryan, H
Baillie, N
Ball, JP
Baltzell, NA
Batourine, V
Bedlinskiy, I
Bellis, M
Benmouna, N
Berman, BL
Bibrzycki, L
Biselli, AS
Bookwalter, C
Bouchigny, S
Boiarinov, S
Bradford, R
Branford, D
Briscoe, WJ
Brooks, WK
Bltmann, S
Burkert, VD
Calarco, JR
Careccia, SL
Carman, DS
Casey, L
Chen, S
Cheng, L
Clinton, E
Cole, PL
Collins, P
Crabb, D
Crannell, H
Crede, V
Cummings, JP
Dale, D
Daniel, A
Dashyan, N
De Masi, R
De Sanctis, E
Degtyarenko, PV
Deur, A
Dhamija, S
Dharmawardane, KV
Dickson, R
Djalali, C
Dodge, GE
Donnelly, J
Doughty, D
Dugger, M
Dzyubak, OP
Egiyan, H
Egiyan, KS
El Fassi, L
Elouadrhiri, L
Eugenio, P
Fedotov, G
Fersch, R
Forest, TA
Fradi, A
Gabrielyan, MY
Gan, L
GarOon, M
Gasparian, A
Gavalian, G
Gevorgyan, N
Gilfoyle, GP
Giovanetti, KL
Girod, FX
Glamazdin, O
Goett, J
Goetz, JT
Gohn, W
Golovatch, E
Gordon, CIO
Gothe, RW
Graham, L
Griffioen, KA
Guidal, M
Guler, N
Guo, L
Gyurjyan, V
Hadjidakis, C
Hafidi, K
Hakobyan, H
Hakobyan, RS
Hanretty, C
Hardie, J
Hassall, N
Heddle, D
Hersman, FW
Hicks, K
Hleiqawi, I
Holtrop, M
Hyde, CE
Ilieva, Y
Ireland, DG
Ishkhanov, BS
Isupov, EL
Ito, MM
Jenkins, D
Jo, HS
Johnstone, JR
Joo, K
Juengst, HG
Kageya, T
Kalantarians, N
Keller, D
Kellie, JD
Khandaker, M
Khetarpal, P
Kim, W
Klein, A
Klein, FJ
Klimenko, AV
Konczykowski, P
Kossov, M
Krahn, Z
Kramer, LH
Kubarovsky, V
Kuhn, J
Kuhn, SE
Kuleshov, SV
Kuznetsov, V
Lachniet, J
Laget, JM
Langheinrich, J
Lawrence, D
Lee, T
Lesniak, L
Li, J
Livingston, K
Lowry, M
Lu, HY
MacCormick, M
Malace, S
Markov, N
Mattione, P
McCracken, ME
McKinnon, B
Mecking, BA
Melone, JJ
Mestayer, MD
Meyer, CA
Mibe, T
Mikhailov, K
Mineeva, T
Minehart, R
Mirazita, M
Miskimen, R
Mochalov, V
Mokeev, V
Moreno, B
Moriya, K
Morrow, SA
Moteabbed, M
Munevar, E
Mutchler, GS
Nadel-Turonski, P
Nakagawa, I
Nasseripour, R
Niccolai, S
Niculescu, G
Niculescu, I
Niczyporuk, BB
Niroula, MR
Niyazov, RA
Nozar, M
Osipenko, M
Ostrovidov, AI
Park, K
Park, S
Pasyuk, E
Paris, M
Paterson, C
Pereira, SA
Pierce, J
Pivnyuk, N
Pocanic, D
Pogorelko, O
Pozdniakov, S
Price, JW
Prok, Y
Protopopescu, D
Raue, BA
Riccardi, G
Ricco, G
Ripani, M
Ritchie, BG
Rosner, G
Rossi, P
Sabati, F
Saini, MS
Salamanca, J
Salgado, C
Sandorfi, A
Santoro, JP
Sapunenko, V
Schott, D
Schumacher, RA
Serov, VS
Sharabian, YG
Sharov, D
Shvedunov, NV
Smith, ES
Smith, LC
Sober, DI
Sokhan, D
Starostin, A
Stavinsky, A
Stepanyan, S
Stepanyan, SS
Stokes, BE
Stoler, P
Stopani, KA
Strakovsky, II
Strauch, S
Taiuti, M
Tedeschi, DJ
Teymurazyan, A
Tkabladze, A
Tkachenko, S
Todor, L
Tur, C
Ungaro, M
Vineyard, MF
Vlassov, AV
Watts, DP
Wei, X
Weinstein, LB
Weygand, DP
Williams, M
Wolin, E
Wood, MH
Yegneswaran, A
Yurov, M
Zana, L
Zhang, J
Zhao, B
Zhao, ZW
AF Battaglieri, M.
De Vita, R.
Szczepaniak, A. P.
Adhikari, K. P.
Aghasyan, M.
Amaryan, M. J.
Ambrozewicz, P.
Anghinolfi, M.
Asryan, G.
Avakian, H.
Bagdasaryan, H.
Baillie, N.
Ball, J. P.
Baltzell, N. A.
Batourine, V.
Bedlinskiy, I.
Bellis, M.
Benmouna, N.
Berman, B. L.
Bibrzycki, L.
Biselli, A. S.
Bookwalter, C.
Bouchigny, S.
Boiarinov, S.
Bradford, R.
Branford, D.
Briscoe, W. J.
Brooks, W. K.
Bltmann, S.
Burkert, V. D.
Calarco, J. R.
Careccia, S. L.
Carman, D. S.
Casey, L.
Chen, S.
Cheng, L.
Clinton, E.
Cole, P. L.
Collins, P.
Crabb, D.
Crannell, H.
Crede, V.
Cummings, J. P.
Dale, D.
Daniel, A.
Dashyan, N.
De Masi, R.
De Sanctis, E.
Degtyarenko, P. V.
Deur, A.
Dhamija, S.
Dharmawardane, K. V.
Dickson, R.
Djalali, C.
Dodge, G. E.
Donnelly, J.
Doughty, D.
Dugger, M.
Dzyubak, O. P.
Egiyan, H.
Egiyan, K. S.
El Fassi, L.
Elouadrhiri, L.
Eugenio, P.
Fedotov, G.
Fersch, R.
Forest, T. A.
Fradi, A.
Gabrielyan, M. Y.
Gan, L.
GarOon, M.
Gasparian, A.
Gavalian, G.
Gevorgyan, N.
Gilfoyle, G. P.
Giovanetti, K. L.
Girod, F. X.
Glamazdin, O.
Goett, J.
Goetz, J. T.
Gohn, W.
Golovatch, E.
Gordon, C. I. O.
Gothe, R. W.
Graham, L.
Griffioen, K. A.
Guidal, M.
Guler, N.
Guo, L.
Gyurjyan, V.
Hadjidakis, C.
Hafidi, K.
Hakobyan, H.
Hakobyan, R. S.
Hanretty, C.
Hardie, J.
Hassall, N.
Heddle, D.
Hersman, F. W.
Hicks, K.
Hleiqawi, I.
Holtrop, M.
Hyde, C. E.
Ilieva, Y.
Ireland, D. G.
Ishkhanov, B. S.
Isupov, E. L.
Ito, M. M.
Jenkins, D.
Jo, H. S.
Johnstone, J. R.
Joo, K.
Juengst, H. G.
Kageya, T.
Kalantarians, N.
Keller, D.
Kellie, J. D.
Khandaker, M.
Khetarpal, P.
Kim, W.
Klein, A.
Klein, F. J.
Klimenko, A. V.
Konczykowski, P.
Kossov, M.
Krahn, Z.
Kramer, L. H.
Kubarovsky, V.
Kuhn, J.
Kuhn, S. E.
Kuleshov, S. V.
Kuznetsov, V.
Lachniet, J.
Laget, J. M.
Langheinrich, J.
Lawrence, D.
Lee, T.
Lesniak, L.
Li, Ji
Livingston, K.
Lowry, M.
Lu, H. Y.
MacCormick, M.
Malace, S.
Markov, N.
Mattione, P.
McCracken, M. E.
McKinnon, B.
Mecking, B. A.
Melone, J. J.
Mestayer, M. D.
Meyer, C. A.
Mibe, T.
Mikhailov, K.
Mineeva, T.
Minehart, R.
Mirazita, M.
Miskimen, R.
Mochalov, V.
Mokeev, V.
Moreno, B.
Moriya, K.
Morrow, S. A.
Moteabbed, M.
Munevar, E.
Mutchler, G. S.
Nadel-Turonski, P.
Nakagawa, I.
Nasseripour, R.
Niccolai, S.
Niculescu, G.
Niculescu, I.
Niczyporuk, B. B.
Niroula, M. R.
Niyazov, R. A.
Nozar, M.
Osipenko, M.
Ostrovidov, A. I.
Park, K.
Park, S.
Pasyuk, E.
Paris, M.
Paterson, C.
Pereira, S. Anefalos
Pierce, J.
Pivnyuk, N.
Pocanic, D.
Pogorelko, O.
Pozdniakov, S.
Price, J. W.
Prok, Y.
Protopopescu, D.
Raue, B. A.
Riccardi, G.
Ricco, G.
Ripani, M.
Ritchie, B. G.
Rosner, G.
Rossi, P.
Sabati, F.
Saini, M. S.
Salamanca, J.
Salgado, C.
Sandorfi, A.
Santoro, J. P.
Sapunenko, V.
Schott, D.
Schumacher, R. A.
Serov, V. S.
Sharabian, Y. G.
Sharov, D.
Shvedunov, N. V.
Smith, E. S.
Smith, L. C.
Sober, D. I.
Sokhan, D.
Starostin, A.
Stavinsky, A.
Stepanyan, S.
Stepanyan, S. S.
Stokes, B. E.
Stoler, P.
Stopani, K. A.
Strakovsky, I. I.
Strauch, S.
Taiuti, M.
Tedeschi, D. J.
Teymurazyan, A.
Tkabladze, A.
Tkachenko, S.
Todor, L.
Tur, C.
Ungaro, M.
Vineyard, M. F.
Vlassov, A. V.
Watts, D. P.
Wei, X.
Weinstein, L. B.
Weygand, D. P.
Williams, M.
Wolin, E.
Wood, M. H.
Yegneswaran, A.
Yurov, M.
Zana, L.
Zhang, J.
Zhao, B.
Zhao, Z. W.
TI Measurement of Direct f(0)(980) Photoproduction on the Proton
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID POLARIZED PHOTONS; DECK MODEL; PI-PI; CHAMBER
AB We report on the results of the first measurement of exclusive f(0)(980) meson photoproduction on protons for E-gamma=3.0-3.8 GeV and -t=0.4-1.0 GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the pi(+)pi(-) channel by performing a partial wave analysis of the reaction gamma p -> p pi(+)pi(-). Clear evidence of the f(0)(980) meson was found in the interference between P and S waves at M-pi(+)pi(-)similar to 1 GeV. The S-wave differential cross section integrated in the mass range of the f(0)(980) was found to be a factor of about 50 smaller than the cross section for the rho meson. This is the first time the f(0)(980) meson has been measured in a photoproduction experiment.
C1 [Battaglieri, M.; De Vita, R.; Anghinolfi, M.; Osipenko, M.; Ricco, G.; Ripani, M.; Taiuti, M.] Sez Genova, Ist Nazl Fis Nucl, I-16146 Genoa, Italy.
[Szczepaniak, A. P.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[El Fassi, L.; Hafidi, K.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Ball, J. P.; Collins, P.; Dugger, M.; Pasyuk, E.; Ritchie, B. G.] Arizona State Univ, Tempe, AZ 85287 USA.
[Goetz, J. T.; Starostin, A.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[Price, J. W.] Calif State Univ Dominguez Hills, Carson, CA 90747 USA.
[Bellis, M.; Bradford, R.; Dickson, R.; Krahn, Z.; Kuhn, J.; Lachniet, J.; McCracken, M. E.; Meyer, C. A.; Moriya, K.; Schumacher, R. A.; Williams, M.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Casey, L.; Cheng, L.; Crannell, H.; Hakobyan, R. S.; Juengst, H. G.; Klein, F. J.; Nadel-Turonski, P.; Santoro, J. P.; Sober, D. I.] Catholic Univ Amer, Washington, DC 20064 USA.
[De Masi, R.; GarOon, M.; Girod, F. X.; Konczykowski, P.; Sabati, F.] CEA Saclay, Serv Phys Nucl, F-91191 Gif Sur Yvette, France.
[Doughty, D.; Hardie, J.; Heddle, D.; Prok, Y.] Christopher Newport Univ, Newport News, VA 23606 USA.
[Gohn, W.; Joo, K.; Markov, N.; Mineeva, T.; Ungaro, M.; Zhao, B.] Univ Connecticut, Storrs, CT 06269 USA.
[Branford, D.; Sokhan, D.; Watts, D. P.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA.
[Ambrozewicz, P.; Dhamija, S.; Gabrielyan, M. Y.; Kramer, L. H.; Moteabbed, M.; Nasseripour, R.; Raue, B. A.; Schott, D.] Florida Int Univ, Miami, FL 33199 USA.
[Bookwalter, C.; Chen, S.; Crede, V.; Eugenio, P.; Hanretty, C.; Ostrovidov, A. I.; Park, S.; Riccardi, G.; Saini, M. S.; Stokes, B. E.] Florida State Univ, Tallahassee, FL 32306 USA.
[Benmouna, N.; Berman, B. L.; Briscoe, W. J.; Juengst, H. G.; Munevar, E.; Nasseripour, R.; Paris, M.; Stokes, B. E.; Strakovsky, I. I.; Strauch, S.; Tkabladze, A.] George Washington Univ, Washington, DC 20052 USA.
[Donnelly, J.; Gordon, C. I. O.; Hassall, N.; Ireland, D. G.; Johnstone, J. R.; Kellie, J. D.; Livingston, K.; McKinnon, B.; Melone, J. J.; Paterson, C.; Protopopescu, D.; Rosner, G.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland.
[Cole, P. L.; Dale, D.; Forest, T. A.; Salamanca, J.] Idaho State Univ, Pocatello, ID 83209 USA.
[Aghasyan, M.; De Sanctis, E.; Mirazita, M.; Pereira, S. Anefalos; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Bouchigny, S.; Fradi, A.; Guidal, M.; Hadjidakis, C.; Jo, H. S.; MacCormick, M.; Moreno, B.; Morrow, S. A.; Niccolai, S.] Inst Phys Nucl ORSAY, Orsay, France.
[Bedlinskiy, I.; Kossov, M.; Kuleshov, S. V.; Mikhailov, K.; Pivnyuk, N.; Pogorelko, O.; Pozdniakov, S.; Serov, V. S.; Stavinsky, A.; Vlassov, A. V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Mochalov, V.] Inst High Energy Phys, Protvino 142281, Russia.
[Giovanetti, K. L.; Niculescu, G.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA.
[Teymurazyan, A.] Univ Kentucky, Lexington, KY 40506 USA.
[Glamazdin, O.] Kharkov Inst Phys & Technol, UA-61108 Kharkov, Ukraine.
[Kim, W.; Kuznetsov, V.; Park, K.; Stepanyan, S. S.; Yurov, M.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Clinton, E.; Lawrence, D.; Miskimen, R.] Univ Massachusetts, Amherst, MA 01003 USA.
[Bibrzycki, L.; Lesniak, L.] Henryk Niewodniczanski Inst Nucl Phys PAN, PL-31342 Krakow, Poland.
[Calarco, J. R.; Egiyan, H.; Gavalian, G.; Hersman, F. W.; Holtrop, M.; Lee, T.; Zana, L.] Univ New Hampshire, Durham, NH 03824 USA.
[Khandaker, M.; Salgado, C.] Norfolk State Univ, Norfolk, VA 23504 USA.
[Gan, L.] Univ N Carolina, Wilmington, NC 28403 USA.
[Gasparian, A.] N Carolina Agr & Tech State Univ, Greensboro, NC 27455 USA.
[Daniel, A.; Hicks, K.; Hleiqawi, I.; Keller, D.; Mibe, T.; Tkabladze, A.] Ohio Univ, Athens, OH 45701 USA.
[Adhikari, K. P.; Amaryan, M. J.; Bagdasaryan, H.; Bltmann, S.; Careccia, S. L.; Dharmawardane, K. V.; Dodge, G. E.; Gavalian, G.; Guler, N.; Hyde, C. E.; Juengst, H. G.; Kalantarians, N.; Klein, A.; Klimenko, A. V.; Kuhn, S. E.; Lachniet, J.; Niroula, M. R.; Tkachenko, S.; Weinstein, L. B.; Zhang, J.] Old Domin Univ, Norfolk, VA 23529 USA.
[Cummings, J. P.; Goett, J.; Khetarpal, P.; Kubarovsky, V.; Li, Ji; Niyazov, R. A.; Stoler, P.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
[Mattione, P.; Mutchler, G. S.] Rice Univ, Houston, TX 77005 USA.
[Gilfoyle, G. P.; Todor, L.] Univ Richmond, Richmond, VA 23173 USA.
[Nakagawa, I.] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan.
[Fedotov, G.; Golovatch, E.; Ishkhanov, B. S.; Isupov, E. L.; Osipenko, M.; Sharov, D.; Shvedunov, N. V.; Stopani, K. A.] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia.
[Baltzell, N. A.; Djalali, C.; Dzyubak, O. P.; Gothe, R. W.; Graham, L.; Ilieva, Y.; Langheinrich, J.; Lu, H. Y.; Malace, S.; Nasseripour, R.; Park, K.; Park, S.; Strauch, S.; Tedeschi, D. J.; Tur, C.; Wood, M. H.; Zhao, Z. W.] Univ S Carolina, Columbia, SC 29208 USA.
[Avakian, H.; Batourine, V.; Boiarinov, S.; Brooks, W. K.; Burkert, V. D.; Carman, D. S.; Degtyarenko, P. V.; Deur, A.; Doughty, D.; Egiyan, H.; Egiyan, K. S.; Elouadrhiri, L.; Girod, F. X.; Guo, L.; Gyurjyan, V.; Hardie, J.; Heddle, D.; Ito, M. M.; Kageya, T.; Kramer, L. H.; Kubarovsky, V.; Laget, J. M.; Lowry, M.; Mecking, B. A.; Mestayer, M. D.; Mokeev, V.; Niczyporuk, B. B.; Niyazov, R. A.; Nozar, M.; Paris, M.; Raue, B. A.; Sandorfi, A.; Santoro, J. P.; Sapunenko, V.; Sharabian, Y. G.; Smith, E. S.; Stepanyan, S.; Wei, X.; Weygand, D. P.; Wolin, E.; Yegneswaran, A.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Vineyard, M. F.] Union Coll, Schenectady, NY 12308 USA.
[Brooks, W. K.; Kuleshov, S. V.] Union Coll, Schenectady, NY 12308 USA.
[Jenkins, D.; Santoro, J. P.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
[Crabb, D.; Minehart, R.; Pierce, J.; Pocanic, D.; Smith, L. C.] Univ Virginia, Charlottesville, VA 22901 USA.
[Baillie, N.; Fersch, R.; Griffioen, K. A.] Coll William & Mary, Williamsburg, VA 23187 USA.
[Asryan, G.; Dashyan, N.; Egiyan, K. S.; Gevorgyan, N.; Hakobyan, H.; Hakobyan, R. S.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Szczepaniak, A. P.] Indiana Univ, Ctr Nucl Theory, Bloomington, IN 47405 USA.
RP Battaglieri, M (reprint author), Sez Genova, Ist Nazl Fis Nucl, I-16146 Genoa, Italy.
RI Schumacher, Reinhard/K-6455-2013; Meyer, Curtis/L-3488-2014; Sabatie,
Franck/K-9066-2015; Osipenko, Mikhail/N-8292-2015; Ishkhanov,
Boris/E-1431-2012; Kuleshov, Sergey/D-9940-2013; Ireland,
David/E-8618-2010; Lu, Haiyun/B-4083-2012; Goett, Johnny/D-1277-2012;
Protopopescu, Dan/D-5645-2012; riccardi, gabriele/A-9269-2012; Zana,
Lorenzo/H-3032-2012; Isupov, Evgeny/J-2976-2012; Zhao, Bo/J-6819-2012;
Brooks, William/C-8636-2013
OI Schumacher, Reinhard/0000-0002-3860-1827; Meyer,
Curtis/0000-0001-7599-3973; Sabatie, Franck/0000-0001-7031-3975;
Osipenko, Mikhail/0000-0001-9618-3013; Goett,
Johnny/0000-0002-3685-2227; Glamazdin, Alexander/0000-0002-4172-7324;
Sapunenko, Vladimir/0000-0003-1877-9043; RIPANI,
Maurizio/0000-0003-4450-8511; Kuleshov, Sergey/0000-0002-3065-326X;
Ireland, David/0000-0001-7713-7011; Zhao, Bo/0000-0003-3171-5335;
Brooks, William/0000-0001-6161-3570
FU Italian Istituto Nazionale di Fisica Nucleare; French Centre National de
la Recherche Scientifique; Commissariat a l'Energie Atomique; U. S.
Department of Energy; National Science Foundation; Korea Science and
Engineering Foundation; Jefferson Science Associates; U. S. DOE
[DE-AC05-060R23177]
FX We would like to acknowledge the outstanding efforts of the staff of the
Accelerator and the Physics Divisions at Jefferson Lab that made this
experiment possible. This work was supported in part by the Italian
Istituto Nazionale di Fisica Nucleare, the French Centre National de la
Recherche Scientifique and Commissariat a l'Energie Atomique, the U. S.
Department of Energy and National Science Foundation, and the Korea
Science and Engineering Foundation. Jefferson Science Associates, LLC,
operates Jefferson Lab for the United States Department of Energy under
U. S. DOE contract DE-AC05-060R23177.
NR 26
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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 MAR 13
PY 2009
VL 102
IS 10
AR 102001
DI 10.1103/PhysRevLett.102.102001
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500014
PM 19392104
ER
PT J
AU Checco, A
AF Checco, Antonio
TI Liquid Spreading under Nanoscale Confinement
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DROPS; PRECURSOR; PROFILES; SURFACES; DYNAMICS; FILMS; GLASS
AB Dynamic atomic force microscopy in the noncontact regime is used to study the morphology of a nonvolatile liquid (squalane) as it spreads along wettable nanostripes embedded in a nonwettable surface. Results show that the liquid profile depends on the amount of lateral confinement imposed by the nanostripes, and it is truncated at the microscopic contact line in good qualitative agreement with classical mesoscale hydrodynamics. However, the width of the contact line is found to be significantly larger than expected theoretically. This behavior may originate from small chemical inhomogeneity of the patterned stripes as well as from thermal fluctuations of the contact line.
C1 Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Checco, A (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
EM checco@bnl.gov
FU Nanoscale Science, Engineering and Technology Program of the U. S. DOE
[DE-AC02-98CH10886]
FX This work is supported by the Nanoscale Science, Engineering and
Technology Program of the U. S. DOE under Contract No.
DE-AC02-98CH10886. The author thanks B. Ocko, S. Dietrich, M. Rauscher,
and J. Koplik for stimulating discussions.
NR 20
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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 MAR 13
PY 2009
VL 102
IS 10
AR 106103
DI 10.1103/PhysRevLett.102.106103
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500040
PM 19392130
ER
PT J
AU Chen, H
Wilks, SC
Bonlie, JD
Liang, EP
Myatt, J
Price, DF
Meyerhofer, DD
Beiersdorfer, P
AF Chen, Hui
Wilks, Scott C.
Bonlie, James D.
Liang, Edison P.
Myatt, Jason
Price, Dwight F.
Meyerhofer, David D.
Beiersdorfer, Peter
TI Relativistic Positron Creation Using Ultraintense Short Pulse Lasers
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PAIR PRODUCTION; FEMTOSECOND-LASER; ELECTRON; PLASMA; CONDENSATION;
GENERATION; TARGETS; PHOTON; BEAMS
AB We measure up to 2x10(10) positrons per steradian ejected out the back of similar to mm thick gold targets when illuminated with short (similar to 1 ps) ultraintense (similar to 1x10(20) W/cm(2)) laser pulses. Positrons are produced predominately by the Bethe-Heitler process and have an effective temperature of 2-4 MeV, with the distribution peaking at 4-7 MeV. The angular distribution of the positrons is anisotropic. Modeling based on the measurements indicate the positron density to be similar to 10(16) positrons/cm(3), the highest ever created in the laboratory.
C1 [Chen, Hui; Wilks, Scott C.; Bonlie, James D.; Price, Dwight F.; Beiersdorfer, Peter] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Liang, Edison P.] Rice Univ, Houston, TX 77005 USA.
[Myatt, Jason; Meyerhofer, David D.] Univ Rochester, Rochester, NY 14623 USA.
RP Chen, H (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
FU U. S. DOE [DE-AC52-07NA27344, LDRD-08-LW-058, DE-FC5208NA28302]; ILSA;
NSF [AST-0406882]
FX Work performed under the auspices of U. S. DOE by LLNL under Contract
No. DE-AC52-07NA27344, LDRD-08-LW-058, and ILSA. Work by the U of R
supported by U. S. DOE No. DE-FC5208NA28302, U of R, and the NY ERDA.
Work performed by Rice U. under NSF No. AST-0406882. We gratefully
acknowledge support from JLF staff, M. Eckart, W. Craig, W. Goldstein,
and D. Correll, and discussions with R. Heeter, M. Schneider, and R.
Shepherd.
NR 35
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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 MAR 13
PY 2009
VL 102
IS 10
AR 105001
DI 10.1103/PhysRevLett.102.105001
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500030
PM 19392120
ER
PT J
AU Chi, SX
Schneidewind, A
Zhao, J
Harriger, LW
Li, LJ
Luo, YK
Cao, GH
Xu, ZA
Loewenhaupt, M
Hu, JP
Dai, PC
AF Chi, Songxue
Schneidewind, Astrid
Zhao, Jun
Harriger, Leland W.
Li, Linjun
Luo, Yongkang
Cao, Guanghan
Xu, Zhu'an
Loewenhaupt, Micheal
Hu, Jiangping
Dai, Pengcheng
TI Inelastic Neutron-Scattering Measurements of a Three-Dimensional Spin
Resonance in the FeAs-Based BaFe1.9Ni0.1As2 Superconductor
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID UPD2AL3
AB We use inelastic neutron scattering to study magnetic excitations of the FeAs-based superconductor BaFe1.9Ni0.1As2 above and below its T-c (=20 K). In addition to gradually open a spin gap at the in-plane antiferromagnetic ordering wave vector (1, 0, 0), the effect of superconductivity is to form a three-dimensional resonance with clear dispersion along the c axis. The intensity of the resonance develops like a superconducting order parameter, and the mode occurs at distinctively different energies at (1, 0, 0) and (1, 0, 1). If the resonance energy is associated with the superconducting gap energy Delta, then Delta is dependent on the wave vector transfers along the c axis. These results suggest that one must be careful in interpreting the superconducting gap energies obtained by surface sensitive probes such as scanning tunneling microscopy and angle resolved photoemission.
C1 [Chi, Songxue; Zhao, Jun; Harriger, Leland W.; Dai, Pengcheng] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Schneidewind, Astrid; Loewenhaupt, Micheal] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany.
[Li, Linjun; Luo, Yongkang; Cao, Guanghan; Xu, Zhu'an] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China.
[Hu, Jiangping] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Dai, Pengcheng] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
RP Chi, SX (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
EM daip@ornl.gov
RI Cao, Guanghan/C-4753-2008; Dai, Pengcheng /C-9171-2012; Hu,
Jiangping/A-9154-2010; Xu, Zhu'an/B-1419-2009; Zhao, Jun/A-2492-2010;
Chi, Songxue/A-6713-2013; hu, jiangping /C-3320-2014;
OI Dai, Pengcheng /0000-0002-6088-3170; Hu, Jiangping/0000-0003-4480-1734;
Zhao, Jun/0000-0002-0421-8934; Chi, Songxue/0000-0002-3851-9153;
Schneidewind, Astrid/0000-0002-7239-9888
FU U.S. NSF [DMR-0756568]; U. S. DOE [DE-FG02-05ER4620]; NSF of China; DFG;
TU Dresden; FRM II
FX This work is supported by the U.S. NSF No. DMR-0756568, U. S. DOE BES
No. DE-FG02-05ER46202, and in part by the U.S. DOE, Division of
Scientific User Facilities. The work at Zhejiang University is supported
by the NSF of China. We further acknowledge support from DFG within
Sonderforschungsbereich 463 and from the PANDA project of TU Dresden and
FRM II.
NR 31
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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 MAR 13
PY 2009
VL 102
IS 10
AR 107006
DI 10.1103/PhysRevLett.102.107006
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500060
PM 19392150
ER
PT J
AU Leonard, F
Talin, AA
Swartzentruber, BS
Picraux, ST
AF Leonard, Francois
Talin, A. Alec
Swartzentruber, B. S.
Picraux, S. T.
TI Diameter-Dependent Electronic Transport Properties of
Au-Catalyst/Ge-Nanowire Schottky Diodes
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID GERMANIUM NANOWIRES; NANOSTRUCTURES; SILICON; DEVICES; GROWTH
AB We present electronic transport measurements in individual Au-catalyst/Ge-nanowire interfaces demonstrating the presence of a Schottky barrier. Surprisingly, the small-bias conductance density increases with decreasing diameter. Theoretical calculations suggest that this effect arises because electron-hole recombination in the depletion region is the dominant charge transport mechanism, with a diameter dependence of both the depletion width and the electron-hole recombination time. The recombination time is dominated by surface contributions and depends linearly on the nanowire diameter.
C1 [Leonard, Francois; Talin, A. Alec] Sandia Natl Labs, Livermore, CA 94551 USA.
[Swartzentruber, B. S.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Picraux, S. T.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Leonard, F (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA.
EM fleonar@sandia.gov
FU U.S. Department of Energy; Los Alamos National Laboratory; Sandia
National Laboratories
FX We thank D. Kienle for contributions to the self-consistent
computational approach. Work performed in part at the U.S. Department of
Energy, Center for Integrated Nanotechnologies, at Los Alamos National
Laboratory and Sandia National Laboratories.
NR 15
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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 MAR 13
PY 2009
VL 102
IS 10
AR 106805
DI 10.1103/PhysRevLett.102.106805
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500054
PM 19392144
ER
PT J
AU Liu, MZ
Lee, TW
Gray, SK
Guyot-Sionnest, P
Pelton, M
AF Liu, Mingzhao
Lee, Tae-Woo
Gray, Stephen K.
Guyot-Sionnest, Philippe
Pelton, Matthew
TI Excitation of Dark Plasmons in Metal Nanoparticles by a Localized
Emitter
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID PARTICLES; MOLECULE; DECAY
AB We study theoretically a dipole emitter placed near a metal nanoparticle and near small chains of two and three nanoparticles. The emitter can efficiently excite dark, or nonradiative, surface-plasmon modes in the nanostructures, in addition to the well-known bright modes. In the case of coupled nanoparticles, the origins of the bright and dark modes can be understood in the context of plasmon hybridization. Excitation of dark modes in nanoparticle chains allows for subwavelength guiding of optical energy with no radiative losses and thus with improved propagation lengths.
C1 [Liu, Mingzhao; Pelton, Matthew] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Lee, Tae-Woo; Gray, Stephen K.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Liu, Mingzhao; Guyot-Sionnest, Philippe] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
RP Liu, MZ (reprint author), Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA.
EM liu13@fas.harvard.edu; pelton@anl.gov
RI Liu, Mingzhao/A-9764-2011; Pelton, Matthew/H-7482-2013
OI Liu, Mingzhao/0000-0002-0999-5214; Pelton, Matthew/0000-0002-6370-8765
FU University of Chicago; MRSEC; NSF-DMR [DMR-0213745]; U.S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX M.Z.L. was supported by the University of Chicago MRSEC NSF-DMR under
Grant No. DMR-0213745. Work at 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 25
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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 MAR 13
PY 2009
VL 102
IS 10
AR 107401
DI 10.1103/PhysRevLett.102.107401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500067
PM 19392157
ER
PT J
AU Lumsden, MD
Christianson, AD
Parshall, D
Stone, MB
Nagler, SE
MacDougall, GJ
Mook, HA
Lokshin, K
Egami, T
Abernathy, DL
Goremychkin, EA
Osborn, R
McGuire, MA
Sefat, AS
Jin, R
Sales, BC
Mandrus, D
AF Lumsden, M. D.
Christianson, A. D.
Parshall, D.
Stone, M. B.
Nagler, S. E.
MacDougall, G. J.
Mook, H. A.
Lokshin, K.
Egami, T.
Abernathy, D. L.
Goremychkin, E. A.
Osborn, R.
McGuire, M. A.
Sefat, A. S.
Jin, R.
Sales, B. C.
Mandrus, D.
TI Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NEUTRON-SCATTERING; SUPERCONDUCTIVITY; UPD2AL3; SYSTEM
AB Inelastic neutron scattering measurements on single crystals of superconducting BaFe1.84Co0.16As2 reveal a magnetic excitation located at wave vectors (1/2 1/2 L) in tetragonal notation. On cooling below T-C, a clear resonance peak is observed at this wave vector with an energy of 8.6(0.5) meV, corresponding to 4.5(0.3) k(B)T(C). This is in good agreement with the canonical value of 5 k(B)T(C) observed in the cuprates. The spectrum shows strong dispersion in the tetragonal plane but very weak dispersion along the c axis, indicating that the magnetic fluctuations are two dimensional in nature. This is in sharp contrast to the anisotropic three dimensional spin excitations seen in the undoped parent compounds.
C1 [Lumsden, M. D.; Christianson, A. D.; Stone, M. B.; Nagler, S. E.; MacDougall, G. J.; Mook, H. A.; Egami, T.; Abernathy, D. L.; McGuire, M. A.; Sefat, A. S.; Jin, R.; Sales, B. C.; Mandrus, D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Parshall, D.; Egami, T.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Lokshin, K.; Egami, T.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Goremychkin, E. A.; Osborn, R.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Goremychkin, E. A.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England.
RP Lumsden, MD (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI McGuire, Michael/B-5453-2009; Nagler, Stephen/B-9403-2010; Nagler,
Stephen/E-4908-2010; Osborn, Raymond/E-8676-2011; Stone,
Matthew/G-3275-2011; Abernathy, Douglas/A-3038-2012; Mandrus,
David/H-3090-2014; christianson, andrew/A-3277-2016; BL18,
ARCS/A-3000-2012; Sefat, Athena/R-5457-2016; Lumsden, Mark/F-5366-2012
OI MacDougall, Gregory/0000-0002-7490-9650; McGuire,
Michael/0000-0003-1762-9406; Nagler, Stephen/0000-0002-7234-2339;
Osborn, Raymond/0000-0001-9565-3140; Stone, Matthew/0000-0001-7884-9715;
Abernathy, Douglas/0000-0002-3533-003X; christianson,
andrew/0000-0003-3369-5884; Sefat, Athena/0000-0002-5596-3504; Lumsden,
Mark/0000-0002-5472-9660
FU Office of Basic Energy Sciences, DOE; DOE EPSCoR [DE-FG02-08ER46528]
FX This work was supported by the Scientific User Facilities Division and
the Division of Materials Sciences and Engineering, Office of Basic
Energy Sciences, DOE. Work at UT was supported by the DOE EPSCoR
Implementation grant DE-FG02-08ER46528.
NR 39
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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 MAR 13
PY 2009
VL 102
IS 10
AR 107005
DI 10.1103/PhysRevLett.102.107005
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500059
PM 19392149
ER
PT J
AU Nozar, M
Salgado, C
Weygand, DP
Guo, L
Adams, G
Li, J
Eugenio, P
Amaryan, MJ
Anghinolfi, M
Asryan, G
Avakian, H
Bagdasaryan, H
Baillie, N
Ball, JP
Baltzell, NA
Barrow, S
Battaglieri, M
Bedlinskiy, I
Bektasoglu, M
Bellis, M
Benmouna, N
Berman, BL
Biselli, AS
Blaszczyk, L
Bonner, BE
Bouchigny, S
Boiarinov, S
Bradford, R
Branford, D
Briscoe, WJ
Brooks, WK
Bultmann, S
Burkert, VD
Butuceanu, C
Calarco, JR
Careccia, SL
Carman, DS
Carnahan, B
Casey, L
Cazes, A
Chen, S
Cheng, L
Cole, PL
Collins, P
Coltharp, P
Cords, D
Corvisiero, P
Crabb, D
Crannell, H
Crede, V
Cummings, JP
Dale, D
Dashyan, N
De Masi, R
De Vita, R
De Sanctis, E
Degtyarenko, PV
Denizli, H
Dennis, L
Deur, A
Dharmawardane, KV
Dhuga, KS
Dickson, R
Djalali, C
Dodge, GE
Doughty, D
Dugger, M
Dytman, S
Dzyubak, OP
Egiyan, H
Egiyan, KS
El Fassi, L
Elouadrhiri, L
Fatemi, R
Fedotov, G
Feuerbach, RJ
Forest, TA
Fradi, A
Funsten, H
Garcon, M
Gavalian, G
Gevorgyan, N
Gilfoyle, GP
Giovanetti, KL
Girod, FX
Goetz, JT
Gothe, RW
Griffioen, KA
Guidal, M
Guillo, M
Guler, N
Gyurjyan, V
Hadjidakis, C
Hafidi, K
Hakobyan, H
Hanretty, C
Hardie, J
Hassall, N
Heddle, D
Hersman, FW
Hicks, K
Hleiqawi, I
Holtrop, M
Hyde-Wright, CE
Ilieva, Y
Ireland, DG
Ishkhanov, BS
Isupov, EL
Ito, MM
Jenkins, D
Jo, HS
Johnstone, JR
Joo, K
Juengst, HG
Kalantarians, N
Kellie, JD
Khandaker, M
Kim, W
Klein, A
Klein, FJ
Kossov, M
Krahn, Z
Kramer, LH
Kubarovsky, V
Kuhn, J
Kuhn, SE
Kuleshov, SV
Kuznetsov, V
Lachniet, J
Laget, JM
Langheinrich, J
Lawrence, D
Livingston, K
Lu, HY
MacCormick, M
Markov, N
Mattione, P
McAleer, S
McKinnon, B
McNabb, JWC
Mecking, BA
Mehrabyan, S
Mestayer, MD
Meyer, CA
Mibe, T
Mikhailov, K
Mirazita, M
Miskimen, R
Mokeev, V
Moreno, B
Moriya, K
Morrow, SA
Moteabbed, M
Mueller, J
Munevar, E
Mutchler, GS
Nadel-Turonski, P
Nasseripour, R
Niccolai, S
Niculescu, G
Niculescu, I
Niczyporuk, BB
Niroula, MR
Niyazov, RA
O'Rielly, GV
Osipenko, M
Ostrovidov, AI
Park, K
Pasyuk, E
Paterson, C
Pereira, SA
Philips, SA
Pierce, J
Pivnyuk, N
Pocanic, D
Pogorelko, O
Polli, E
Popa, I
Pozdniakov, S
Preedom, BM
Price, JW
Prok, Y
Protopopescu, D
Qin, LM
Raue, BA
Riccardi, G
Ricco, G
Ripani, M
Ritchie, BG
Ronchetti, F
Rosner, G
Rossi, P
Rubin, PD
Sabatie, F
Salamanca, J
Santoro, JP
Sapunenko, V
Schumacher, RA
Serov, VS
Sharabian, YG
Sharov, D
Shvedunov, NV
Skabelin, AV
Smith, ES
Smith, LC
Sober, DI
Sokhan, D
Stavinsky, A
Stepanyan, SS
Stepanyan, S
Stokes, BE
Stoler, P
Strakovsky, II
Strauch, S
Taiuti, M
Tedeschi, DJ
Thoma, U
Tkabladze, A
Tkachenko, S
Todor, L
Ungaro, M
Vineyard, MF
Vlassov, AV
Watts, DP
Weinstein, LB
Williams, M
Wolin, E
Wood, MH
Yegneswaran, A
Zana, L
Zhang, J
Zhao, B
Zhao, ZW
AF Nozar, M.
Salgado, C.
Weygand, D. P.
Guo, L.
Adams, G.
Li, Ji
Eugenio, P.
Amaryan, M. J.
Anghinolfi, M.
Asryan, G.
Avakian, H.
Bagdasaryan, H.
Baillie, N.
Ball, J. P.
Baltzell, N. A.
Barrow, S.
Battaglieri, M.
Bedlinskiy, I.
Bektasoglu, M.
Bellis, M.
Benmouna, N.
Berman, B. L.
Biselli, A. S.
Blaszczyk, L.
Bonner, B. E.
Bouchigny, S.
Boiarinov, S.
Bradford, R.
Branford, D.
Briscoe, W. J.
Brooks, W. K.
Bueltmann, S.
Burkert, V. D.
Butuceanu, C.
Calarco, J. R.
Careccia, S. L.
Carman, D. S.
Carnahan, B.
Casey, L.
Cazes, A.
Chen, S.
Cheng, L.
Cole, P. L.
Collins, P.
Coltharp, P.
Cords, D.
Corvisiero, P.
Crabb, D.
Crannell, H.
Crede, V.
Cummings, J. P.
Dale, D.
Dashyan, N.
De Masi, R.
De Vita, R.
De Sanctis, E.
Degtyarenko, P. V.
Denizli, H.
Dennis, L.
Deur, A.
Dharmawardane, K. V.
Dhuga, K. S.
Dickson, R.
Djalali, C.
Dodge, G. E.
Doughty, D.
Dugger, M.
Dytman, S.
Dzyubak, O. P.
Egiyan, H.
Egiyan, K. S.
El Fassi, L.
Elouadrhiri, L.
Fatemi, R.
Fedotov, G.
Feuerbach, R. J.
Forest, T. A.
Fradi, A.
Funsten, H.
Garcon, M.
Gavalian, G.
Gevorgyan, N.
Gilfoyle, G. P.
Giovanetti, K. L.
Girod, F. X.
Goetz, J. T.
Gothe, R. W.
Griffioen, K. A.
Guidal, M.
Guillo, M.
Guler, N.
Gyurjyan, V.
Hadjidakis, C.
Hafidi, K.
Hakobyan, H.
Hanretty, C.
Hardie, J.
Hassall, N.
Heddle, D.
Hersman, F. W.
Hicks, K.
Hleiqawi, I.
Holtrop, M.
Hyde-Wright, C. E.
Ilieva, Y.
Ireland, D. G.
Ishkhanov, B. S.
Isupov, E. L.
Ito, M. M.
Jenkins, D.
Jo, H. S.
Johnstone, J. R.
Joo, K.
Juengst, H. G.
Kalantarians, N.
Kellie, J. D.
Khandaker, M.
Kim, W.
Klein, A.
Klein, F. J.
Kossov, M.
Krahn, Z.
Kramer, L. H.
Kubarovsky, V.
Kuhn, J.
Kuhn, S. E.
Kuleshov, S. V.
Kuznetsov, V.
Lachniet, J.
Laget, J. M.
Langheinrich, J.
Lawrence, D.
Livingston, K.
Lu, H. Y.
MacCormick, M.
Markov, N.
Mattione, P.
McAleer, S.
McKinnon, B.
McNabb, J. W. C.
Mecking, B. A.
Mehrabyan, S.
Mestayer, M. D.
Meyer, C. A.
Mibe, T.
Mikhailov, K.
Mirazita, M.
Miskimen, R.
Mokeev, V.
Moreno, B.
Moriya, K.
Morrow, S. A.
Moteabbed, M.
Mueller, J.
Munevar, E.
Mutchler, G. S.
Nadel-Turonski, P.
Nasseripour, R.
Niccolai, S.
Niculescu, G.
Niculescu, I.
Niczyporuk, B. B.
Niroula, M. R.
Niyazov, R. A.
O'Rielly, G. V.
Osipenko, M.
Ostrovidov, A. I.
Park, K.
Pasyuk, E.
Paterson, C.
Pereira, S. Anefalos
Philips, S. A.
Pierce, J.
Pivnyuk, N.
Pocanic, D.
Pogorelko, O.
Polli, E.
Popa, I.
Pozdniakov, S.
Preedom, B. M.
Price, J. W.
Prok, Y.
Protopopescu, D.
Qin, L. M.
Raue, B. A.
Riccardi, G.
Ricco, G.
Ripani, M.
Ritchie, B. G.
Ronchetti, F.
Rosner, G.
Rossi, P.
Rubin, P. D.
Sabatie, F.
Salamanca, J.
Santoro, J. P.
Sapunenko, V.
Schumacher, R. A.
Serov, V. S.
Sharabian, Y. G.
Sharov, D.
Shvedunov, N. V.
Skabelin, A. V.
Smith, E. S.
Smith, L. C.
Sober, D. I.
Sokhan, D.
Stavinsky, A.
Stepanyan, S. S.
Stepanyan, S.
Stokes, B. E.
Stoler, P.
Strakovsky, I. I.
Strauch, S.
Taiuti, M.
Tedeschi, D. J.
Thoma, U.
Tkabladze, A.
Tkachenko, S.
Todor, L.
Ungaro, M.
Vineyard, M. F.
Vlassov, A. V.
Watts, D. P.
Weinstein, L. B.
Williams, M.
Wolin, E.
Wood, M. H.
Yegneswaran, A.
Zana, L.
Zhang, J.
Zhao, B.
Zhao, Z. W.
TI Search for the Photoexcitation of Exotic Mesons in the pi(+)pi(+)pi(-)
System
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID 18 GEV/C; PHOTOPRODUCTION; CEBAF; STATE
AB A search for exotic mesons in the pi(+)pi(+)pi(-) system photoproduced by the charge exchange reaction gamma p ->pi(+)pi(+)pi(-)(n) was carried out by the CLAS Collaboration at Jefferson Lab. A tagged-photon beam with energies in the 4.8 to 5.4 GeV range, produced through bremsstrahlung from a 5.744 GeV electron beam, was incident on a liquid-hydrogen target. A partial wave analysis was performed on a sample of 83 000 events, the highest such statistics to date in this reaction at these energies. The main objective of this study was to look for the photoproduction of an exotic J(PC)=1(-+) resonant state in the 1 to 2 GeV mass range. Our partial wave analysis shows production of the a(2)(1320) and the pi(2)(1670) mesons, but no evidence for the a(1)(1260), nor the pi(1)(1600) exotic state at the expected levels. An upper limit of 13.5 nb is determined for the exotic pi(1)(1600) cross section, less than 2% of the a(2)(1320) production.
C1 [Nozar, M.; Salgado, C.; Weygand, D. P.; Guo, L.; Adams, G.; Li, Ji; Avakian, H.; Boiarinov, S.; Burkert, V. D.; Carman, D. S.; Cole, P. L.; Cords, D.; Degtyarenko, P. V.; Deur, A.; Doughty, D.; Egiyan, H.; Elouadrhiri, L.; Girod, F. X.; Gyurjyan, V.; Hardie, J.; Heddle, D.; Ito, M. M.; Joo, K.; Kubarovsky, V.; Laget, J. M.; Mecking, B. A.; Mestayer, M. D.; Mokeev, V.; Niczyporuk, B. B.; Raue, B. A.; Santoro, J. P.; Sapunenko, V.; Sharabian, Y. G.; Smith, E. S.; Stepanyan, S.; Thoma, U.; Wolin, E.; Yegneswaran, A.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
[Khandaker, M.] Norfolk State Univ, Norfolk, VA 23504 USA.
[Biselli, A. S.; Cummings, J. P.; Niyazov, R. A.; Stoler, P.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
[Eugenio, P.; Barrow, S.; Blaszczyk, L.; Chen, S.; Coltharp, P.; Crede, V.; Dennis, L.; Hanretty, C.; McAleer, S.; Ostrovidov, A. I.; Riccardi, G.; Stokes, B. E.] Florida State Univ, Tallahassee, FL 32306 USA.
[El Fassi, L.; Hafidi, K.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Ball, J. P.; Collins, P.; Dugger, M.; Pasyuk, E.; 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.
[Bellis, M.; Bradford, R.; Dickson, R.; Feuerbach, R. J.; Krahn, Z.; Kuhn, J.; McNabb, J. W. C.; Meyer, C. A.; Moriya, K.; Schumacher, R. A.; Todor, L.; Williams, M.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Carnahan, B.; Casey, L.; Cheng, L.; Crannell, H.; Klein, F. J.; Santoro, J. P.; Sober, D. I.] Catholic Univ Amer, Washington, DC 20064 USA.
[De Masi, R.; Garcon, M.; Girod, F. X.; Laget, J. M.; Morrow, S. A.; Sabatie, F.] CEA Saclay, Serv Phys Nucl, F-91191 Gif Sur Yvette, France.
[Doughty, D.; Hardie, J.; Stepanyan, S. S.; Stepanyan, S.] Christopher Newport Univ, Newport News, VA 23606 USA.
[Joo, K.; Markov, N.; Niyazov, R. A.; Ungaro, M.; Zhao, B.] Univ Connecticut, Storrs, CT 06269 USA.
[Branford, D.; Sokhan, D.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA.
[Kramer, L. H.; Moteabbed, M.; Nasseripour, R.; Raue, B. A.] Florida Int Univ, Miami, FL 33199 USA.
[Benmouna, N.; Berman, B. L.; Briscoe, W. J.; Dhuga, K. S.; Ilieva, Y.; Munevar, E.; Nadel-Turonski, P.; Niccolai, S.; Niculescu, I.; O'Rielly, G. V.; Philips, S. A.; Popa, I.; Strakovsky, I. I.; Tkabladze, A.] George Washington Univ, Washington, DC 20052 USA.
[Hassall, N.; Ireland, D. G.; Johnstone, J. R.; Kellie, J. D.; Livingston, K.; McKinnon, B.; Paterson, C.; Protopopescu, D.; Rosner, G.; Watts, D. P.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland.
[Cole, P. L.; Dale, D.; Forest, T. A.; Salamanca, J.] Idaho State Univ, Pocatello, ID 83209 USA.
[De Sanctis, E.; Mirazita, M.; Pereira, S. Anefalos; Polli, E.; Ronchetti, F.; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Anghinolfi, M.; Battaglieri, M.; Corvisiero, P.; De Vita, R.; Osipenko, M.; Ricco, G.; Ripani, M.; Taiuti, M.] Ist Nazl Fis Nucl, Serz Genova, I-16146 Genoa, Italy.
[Bouchigny, S.; Fradi, A.; Guidal, M.; Hadjidakis, C.; Jo, H. S.; MacCormick, M.; Moreno, B.; Morrow, S. A.; Niccolai, S.] Inst Phys Nucl ORSAY, Orsay, France.
[Bedlinskiy, I.; Boiarinov, S.; Kossov, M.; Mikhailov, K.; Pivnyuk, N.; Pogorelko, O.; Pozdniakov, S.; Serov, V. S.; Stavinsky, A.; Vlassov, A. V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Giovanetti, K. L.; Niculescu, G.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA.
[Kim, W.; Kuznetsov, V.; Park, K.; Stepanyan, S. S.] Kyungpook Natl Univ, Taegu 702701, South Korea.
[Skabelin, A. V.] MIT, Cambridge, MA 02139 USA.
[Lawrence, D.; Miskimen, R.] Univ Massachusetts, Amherst, MA 01003 USA.
[Fedotov, G.; Ishkhanov, B. S.; Isupov, E. L.; Mokeev, V.; Osipenko, M.; Sharov, D.; Shvedunov, N. V.] Moscow MV Lomonosov State Univ, Gen Nucl Phys Inst, Moscow 119899, Russia.
[Calarco, J. R.; Gavalian, G.; Hersman, F. W.; Holtrop, M.; Protopopescu, D.; Zana, L.] Univ New Hampshire, Durham, NH 03824 USA.
[Hicks, K.; Hleiqawi, I.; Mibe, T.; Niculescu, G.; Niculescu, I.] Ohio Univ, Athens, OH 45701 USA.
[Amaryan, M. J.; Bagdasaryan, H.; Bektasoglu, M.; Bueltmann, S.; Careccia, S. L.; Dharmawardane, K. V.; Dodge, G. E.; Gavalian, G.; Guler, N.; Hyde-Wright, C. E.; Juengst, H. G.; Kalantarians, N.; Klein, A.; Kuhn, S. E.; Lachniet, J.; Niroula, M. R.; Niyazov, R. A.; Qin, L. M.; Tkachenko, S.; Weinstein, L. B.; Zhang, J.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Denizli, H.; Dytman, S.; Mehrabyan, S.; Mueller, J.] Univ Pittsburgh, Pittsburgh, PA 15260 USA.
[Bonner, B. E.; Mattione, P.; Mutchler, G. S.] Rice Univ, Houston, TX 77005 USA.
[Gilfoyle, G. P.; Rubin, P. D.; Vineyard, M. F.] Univ Richmond, Richmond, VA 23173 USA.
[Baltzell, N. A.; Cazes, A.; Djalali, C.; Dzyubak, O. P.; Gothe, R. W.; Guillo, M.; Langheinrich, J.; Lu, H. Y.; Nasseripour, R.; Preedom, B. M.; Strauch, S.; Tedeschi, D. J.; Wood, M. H.; Zhao, Z. W.] Univ S Carolina, Columbia, SC 29208 USA.
[Brooks, W. K.; Kuleshov, S. V.] Univ Tecn Federico Santa Maria, Valparaiso, Chile.
[Vineyard, M. F.] Union Coll, Schenectady, NY 12308 USA.
[Jenkins, D.; Santoro, J. P.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
[Crabb, D.; Fatemi, R.; Pierce, J.; Pocanic, D.; Prok, Y.; Smith, L. C.] Univ Virginia, Charlottesville, VA 22901 USA.
[Baillie, N.; Butuceanu, C.; Egiyan, H.; Egiyan, K. S.; Funsten, H.; Griffioen, K. A.] Coll William & Mary, Williamsburg, VA 23187 USA.
[Asryan, G.; Bagdasaryan, H.; Dashyan, N.; Egiyan, K. S.; Gevorgyan, N.; Hakobyan, H.] Yerevan Phys Inst, Yerevan 375036, Armenia.
RP Nozar, M (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
RI Schumacher, Reinhard/K-6455-2013; Meyer, Curtis/L-3488-2014; Sabatie,
Franck/K-9066-2015; Osipenko, Mikhail/N-8292-2015; Zhang,
Jixie/A-1461-2016; Isupov, Evgeny/J-2976-2012; Ishkhanov,
Boris/E-1431-2012; Zhao, Bo/J-6819-2012; Brooks, William/C-8636-2013;
Protopopescu, Dan/D-5645-2012; Kuleshov, Sergey/D-9940-2013; Ireland,
David/E-8618-2010; Bektasoglu, Mehmet/A-2074-2012; Lu,
Haiyun/B-4083-2012; riccardi, gabriele/A-9269-2012; Zana,
Lorenzo/H-3032-2012
OI Schumacher, Reinhard/0000-0002-3860-1827; Meyer,
Curtis/0000-0001-7599-3973; Sabatie, Franck/0000-0001-7031-3975;
Osipenko, Mikhail/0000-0001-9618-3013; Sapunenko,
Vladimir/0000-0003-1877-9043; RIPANI, Maurizio/0000-0003-4450-8511;
Bellis, Matthew/0000-0002-6353-6043; Zhao, Bo/0000-0003-3171-5335;
Brooks, William/0000-0001-6161-3570; Kuleshov,
Sergey/0000-0002-3065-326X; Ireland, David/0000-0001-7713-7011;
FU U. S. Department of Energy; U. S. National Science Foundation; Italian
Istituto Nazionale di Fisica Nucleare; French Centre National de la
Recherche Scientifique; French Commissariat a l'Energie Atomique; Korean
Science and Engineering Foundation; United States Department of Energy
[DE-AC05-060R23177]
FX This work was supported in part by the U. S. Department of Energy, the
U. S. National Science Foundation, the Italian Istituto Nazionale di
Fisica Nucleare, the French Centre National de la Recherche
Scientifique, the French Commissariat a l'Energie Atomique, and the
Korean Science and Engineering Foundation. Jefferson Science Associates
(JSA) operates the Thomas Jefferson National Accelerator Facility for
the United States Department of Energy under Contract No.
DE-AC05-060R23177.
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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 MAR 13
PY 2009
VL 102
IS 10
AR 102002
DI 10.1103/PhysRevLett.102.102002
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500015
PM 19392105
ER
PT J
AU Smadici, S
Lee, JCT
Wang, S
Abbamonte, P
Logvenov, G
Gozar, A
Cavellin, CD
Bozovic, I
AF Smadici, S.
Lee, J. C. T.
Wang, S.
Abbamonte, P.
Logvenov, G.
Gozar, A.
Cavellin, C. Deville
Bozovic, I.
TI Superconducting Transition at 38 K in Insulating-Overdoped
La2CuO4-La1.64Sr0.36CuO4 Superlattices: Evidence for Interface
Electronic Redistribution from Resonant Soft X-Ray Scattering
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID RECONSTRUCTION; OXIDES
AB We use resonant soft x-ray scattering (RSXS) to quantify the hole distribution in a superlattice of insulating La2CuO4 (LCO) and overdoped La2-xSrxCuO4 (LSCO). Despite its nonsuperconducting constituents, this structure is superconducting with T-c=38 K. We found that the conducting holes redistribute electronically from LSCO to the LCO layers. The LCO layers were found to be optimally doped, suggesting they are the main drivers of superconductivity. Our results demonstrate the utility of RSXS for separating electronic from structural effects at oxide interfaces.
C1 [Smadici, S.; Lee, J. C. T.; Wang, S.; Abbamonte, P.] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA.
[Logvenov, G.; Gozar, A.; Cavellin, C. Deville; Bozovic, I.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Cavellin, C. Deville] Univ Paris 12, F-94010 Creteil, France.
RP Smadici, S (reprint author), Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA.
FU Office of Basic Energy Sciences, U.S. Department of Energy
[DE-FG02-06ER46285, DE-AC0298CH10886, DE-FG0207ER46453,
DE-FG02-07ER46471]; [MA-509-MACA]
FX This work was supported by the Office of Basic Energy Sciences, U.S.
Department of Energy. RSXS studies were supported by Grant No.
DE-FG02-06ER46285, with use of the NSLS supported under Contract No.
DE-AC0298CH10886. Superlattice growth and characterization were
supported under Contract No. MA-509-MACA. Work in the FSMRL was
supported by Grants No. DE-FG0207ER46453 and No. DE-FG02-07ER46471.
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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 MAR 13
PY 2009
VL 102
IS 10
AR 107004
DI 10.1103/PhysRevLett.102.107004
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500058
PM 19392148
ER
PT J
AU Valla, T
Camacho, J
Pan, ZH
Fedorov, AV
Walters, AC
Howard, CA
Ellerby, M
AF Valla, T.
Camacho, J.
Pan, Z.-H.
Fedorov, A. V.
Walters, A. C.
Howard, C. A.
Ellerby, M.
TI Anisotropic Electron-Phonon Coupling and Dynamical Nesting on the
Graphene Sheets in Superconducting CaC6 using Angle-Resolved
Photoemission Spectroscopy
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID GRAPHITE; INTERCALATION; ENERGY; STATE
AB We present the first angle-resolved photoemission studies of electronic structure in CaC6, a superconducting graphite intercalation compound with T-c=11.6 K. We find that, contrary to theoretical models, the electron-phonon coupling on the graphene-derived Fermi sheets with high-frequency graphene-derived phonons is surprisingly strong and anisotropic. The shape of the Fermi surface is found to favor a dynamical intervalley nesting via exchange of high-frequency phonons. Our results suggest that graphene sheets play a crucial role in superconductivity in graphite intercalation compounds.
C1 [Valla, T.; Camacho, J.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Pan, Z.-H.; Fedorov, A. V.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Walters, A. C.; Howard, C. A.; Ellerby, M.] UCL, London Ctr Nanotechnol, London WC1E 6BT, England.
[Walters, A. C.; Howard, C. A.; Ellerby, M.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
RP Valla, T (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
EM valla@bnl.gov
FU U.S. Department of Energy; U.K. Engineering and Physical Science
Research Council
FX We acknowledge technical help from Antony Bollinger and useful
discussions with Phil Allen, Matteo Calandra, Peter Johnson, Myron
Strongin, Alexei Tsvelik, and Mary Upton. The research work described in
this Letter was supported by the U.S. Department of Energy and the U.K.
Engineering and Physical Science Research Council.
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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 MAR 13
PY 2009
VL 102
IS 10
AR 107007
DI 10.1103/PhysRevLett.102.107007
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500061
PM 19392151
ER
PT J
AU Zurek, WH
AF Zurek, Wojciech H.
TI Causality in Condensates: Gray Solitons as Relics of BEC Formation
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID BOSE-EINSTEIN CONDENSATION; COSMOLOGICAL EXPERIMENTS; SYMMETRY-BREAKING;
PHASE-TRANSITION; DEFECT FORMATION; VORTEX FORMATION; DIMENSIONS;
VORTICES; DYNAMICS; STRINGS
AB Symmetry breaking during phase transitions can lead to the formation of topological defects (such as vortex lines in superfluids). However, the usually studied Bose-Einstein condensates (BECs) have the shape of a cigar, a geometry that impedes vortex formation, survival, and detection. I show that, in elongated traps, one can expect the formation of gray solitons (long-lived, nontopological "phase defects") as a result of the same mechanism. Their number will rise approximately in proportion to the transition rate. This steep rise is due to the increasing size of the region of the BEC cigar where the phase of the condensate wave function is chosen locally (rather than passed on from the already formed BEC).
C1 LANL, Div Theory, Los Alamos, NM 87545 USA.
RP Zurek, WH (reprint author), LANL, Div Theory, MS B213, Los Alamos, NM 87545 USA.
FU DOE
FX I thank Brian Anderson, Malcolm Boshier, Bogdan Damski, and Peter Engels
for stimulating discussions. This research was supported by DOE under
the LDRD program at Los Alamos.
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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 MAR 13
PY 2009
VL 102
IS 10
AR 105702
DI 10.1103/PhysRevLett.102.105702
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 418HO
UT WOS:000264139500036
PM 19392126
ER
PT J
AU Bisgaard, CZ
Clarkin, OJ
Wu, GR
Lee, AMD
Gessner, O
Hayden, CC
Stolow, A
AF Bisgaard, Christer Z.
Clarkin, Owen J.
Wu, Guorong
Lee, Anthony M. D.
Gessner, Oliver
Hayden, Carl C.
Stolow, Albert
TI Time-Resolved Molecular Frame Dynamics of Fixed-in-Space CS2 Molecules
SO SCIENCE
LA English
DT Article
ID PHOTOELECTRON ANGULAR-DISTRIBUTIONS; LASER-PULSES; SPECTROSCOPY; STATE;
PREDISSOCIATION; DIFFRACTION; DISSOCIATION; IONIZATION; NM
AB Random orientation of molecules within a sample leads to blurred observations of chemical reactions studied from the laboratory perspective. Methods developed for the dynamic imaging of molecular structures and processes struggle with this, as measurements are optimally made in the molecular frame. We used laser alignment to transiently fix carbon disulfide molecules in space long enough to elucidate, in the molecular reference frame, details of ultrafast electronic-vibrational dynamics during a photochemical reaction. These three-dimensional photoelectron imaging results, combined with ongoing efforts in molecular alignment and orientation, presage a wide range of insights obtainable from time-resolved studies in the molecular frame.
C1 [Bisgaard, Christer Z.; Clarkin, Owen J.; Wu, Guorong; Lee, Anthony M. D.; Stolow, Albert] Natl Res Council Canada, Steacie Inst Mol Sci, Ottawa, ON K1A 0R6, Canada.
[Clarkin, Owen J.; Lee, Anthony M. D.; Stolow, Albert] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada.
[Gessner, Oliver] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
[Hayden, Carl C.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
RP Stolow, A (reprint author), Natl Res Council Canada, Steacie Inst Mol Sci, 100 Sussex Dr, Ottawa, ON K1A 0R6, Canada.
EM albert.stolow@nrc.ca
RI Bisgaard, Christer/G-2099-2010
FU Natural Sciences and Engineering Research Council of Canada
FX This work was supported by the Natural Sciences and Engineering Research
Council of Canada (A.M.D.L. and A.S.). We gratefully acknowledge J. G.
Underwood, S. Patchkovskii, C.-Y. Ng, M. Brouard, and D. M. Wardlaw for
stimulating discussions.
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PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD MAR 13
PY 2009
VL 323
IS 5920
BP 1464
EP 1468
DI 10.1126/science.1169183
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 417TP
UT WOS:000264101700037
PM 19286552
ER
PT J
AU Dbouk, HA
Mroue, RM
El-Sabban, ME
Talhouk, RS
AF Dbouk, Hashem A.
Mroue, Rana M.
El-Sabban, Marwan E.
Talhouk, Rabih S.
TI Connexins: a myriad of functions extending beyond assembly of gap
junction channels
SO CELL COMMUNICATION AND SIGNALING
LA English
DT Review
ID CELL-CELL COMMUNICATION; LENS FIBER CONNEXINS; MOUSE MAMMARY-GLAND;
BREAST-CANCER CELLS; PROTEIN-KINASE-C; INTERCELLULAR COMMUNICATION;
OCULODENTODIGITAL DYSPLASIA; CARDIAC MYOCYTES; OSTEOBLASTIC CELLS; TIGHT
JUNCTIONS
AB Connexins constitute a large family of trans-membrane proteins that allow intercellular communication and the transfer of ions and small signaling molecules between cells. Recent studies have revealed complex translational and post-translational mechanisms that regulate connexin synthesis, maturation, membrane transport and degradation that in turn modulate gap junction intercellular communication. With the growing myriad of connexin interacting proteins, including cytoskeletal elements, junctional proteins, and enzymes, gap junctions are now perceived, not only as channels between neighboring cells, but as signaling complexes that regulate cell function and transformation. Connexins have also been shown to form functional hemichannels and have roles altogether independent of channel functions, where they exert their effects on proliferation and other aspects of life and death of the cell through mostly-undefined mechanisms. This review provides an updated overview of current knowledge of connexins and their interacting proteins, and it describes connexin modulation in disease and tumorigenesis.
C1 [El-Sabban, Marwan E.] Amer Univ Beirut, Fac Med, Dept Human Morphol, Beirut, Lebanon.
[Dbouk, Hashem A.; Mroue, Rana M.; Talhouk, Rabih S.] Amer Univ Beirut, Fac Arts & Sci, Dept Biol, Beirut, Lebanon.
[Dbouk, Hashem A.] Albert Einstein Coll Med, Dept Mol Pharmacol, Bronx, NY 10467 USA.
[Mroue, Rana M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP El-Sabban, ME (reprint author), Amer Univ Beirut, Fac Med, Dept Human Morphol, Beirut, Lebanon.
EM hdbouk@aecom.yu.edu; RMMroue@lbl.gov; me00@aub.edu.lb;
rtalhouk@aub.edu.lb
RI Dbouk, Hashem/H-3350-2013;
OI dbouk, hashem/0000-0002-4183-9481
FU University Research Board (American University of Beirut, Lebanon);
Lebanese National Council for Scientific Research
FX The authors are grateful to Dr. Colin Smith for his critical reading of
the manuscript and to Ms. Hana'a Hariri and Mr. Gilbert Rahme for the
preparation of the manuscript. This effort was supported by the
University Research Board (American University of Beirut, Lebanon) and
Lebanese National Council for Scientific Research.
NR 243
TC 108
Z9 112
U1 3
U2 13
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1478-811X
J9 CELL COMMUN SIGNAL
JI Cell Commun. Signal.
PD MAR 12
PY 2009
VL 7
AR 4
DI 10.1186/1478-811X-7-4
PG 17
WC Cell Biology
SC Cell Biology
GA 521GU
UT WOS:000271909400001
PM 19284610
ER
PT J
AU Beilman, DW
MacDonald, GM
Smith, LC
Reimer, PJ
AF Beilman, David W.
MacDonald, Glen M.
Smith, Laurence C.
Reimer, Paula J.
TI Carbon accumulation in peatlands of West Siberia over the last 2000
years
SO GLOBAL BIOGEOCHEMICAL CYCLES
LA English
DT Article
ID PEAT BOG GROWTH; BOMB C-14 DATA; AGE CALIBRATION; CLIMATE-CHANGE;
ORGANIC-CARBON; HOLOCENE; NORTHERN; HISTORY; CANADA; TREELINE
AB We use a network of cores from 77 peatland sites to determine controls on peat C content and peat C accumulation over the last 2000 years ( since 2 ka) across Russia's West Siberian Lowland (WSL), the world's largest wetland region. Our results show a significant influence of fossil plant composition on peat C content, with peats dominated by Sphagnum having a lower C content. Radiocarbon-derived C accumulation since 2 ka at 23 sites is highly variable from site to site, but displays a significant N-S trend of decreasing accumulation at higher latitudes. Northern WSL peatlands show relatively small C accumulation of 7 to 35 kg C m(-2) since 2 ka. In contrast, peatlands south of 60 degrees N show larger accumulation of 42 to 88 kg C m(-2). Carbon accumulation since 2 ka varies significantly with modern mean annual air temperature, with maximum C accumulation found between -1 and 0 degrees C. Rates of apparent C accumulation since 2 ka show no significant relationship to long-term Holocene averages based on total C accumulation. A GIS-based extrapolation of our site data suggests that a substantial amount (similar to 40%) of total WSL peat C has accumulated since 2 ka, with much of this accumulation south of 60 degrees N. The large peatlands in the southern WSL may be an important component of the Eurasian terrestrial C sink, and future warming could result in a shift northward in long-term WSL C sequestration.
C1 [Beilman, David W.; MacDonald, Glen M.; Smith, Laurence C.] Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA.
[Beilman, David W.; Reimer, Paula J.] Queens Univ Belfast, CHRONO Ctr Climate Environm & Chronol, Sch Geog Archaeol & Palaeoecol, Belfast BT9 6AX, Antrim, North Ireland.
[Reimer, Paula J.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
RP Beilman, DW (reprint author), Univ Hawaii Manoa, Dept Geog, Honolulu, HI 96822 USA.
EM beilman@hawaii.edu
RI Smith, Laurence/E-7785-2012; Reimer, Paula/I-5915-2015
OI Smith, Laurence/0000-0001-6866-5904;
FU NSF [SRB-0425625]; Geological Society of America; NSF RAISE
[OPP-9818496]; NSF Carbon and Water in the Earth System [ATM-0628598]
FX Research support was provided by an NSF doctoral dissertation research
improvement grant (SRB-0425625) and a Geological Society of America
graduate grant to DB. Initial collection and analyses was supported by
an NSF RAISE grant to GM and LS (OPP-9818496), and further analysis for
this study was supported by an NSF Carbon and Water in the Earth System
(ATM-0628598) to GM. We thank Olga Borisova, Karen Frey, Kostya
Kremenetski, and Lena Novenko for field assistance. DB thanks Chris
Swanston and Tom Guilderson at LLNL-CAMS for radiocarbon advice.
Comments from two anonymous reviewers improved the manuscript.
NR 55
TC 51
Z9 51
U1 2
U2 46
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0886-6236
J9 GLOBAL BIOGEOCHEM CY
JI Glob. Biogeochem. Cycle
PD MAR 12
PY 2009
VL 23
AR GB1012
DI 10.1029/2007GB003112
PG 12
WC Environmental Sciences; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric
Sciences
GA 419MH
UT WOS:000264223200001
ER
PT J
AU Meriaux, AS
Sieh, K
Finkel, RC
Rubin, CM
Taylor, MH
Meltzner, AJ
Ryerson, FJ
AF Meriaux, A. -S.
Sieh, K.
Finkel, R. C.
Rubin, C. M.
Taylor, M. H.
Meltzner, A. J.
Ryerson, F. J.
TI Kinematic behavior of southern Alaska constrained by westward decreasing
postglacial slip rates on the Denali Fault, Alaska
SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
LA English
DT Article
ID WESTERN HAIYUAN FAULT; CORDILLERAN ICE-SHEET; 3 NOVEMBER 2002;
YOUNGER-DRYAS; BRITISH-COLUMBIA; NORTH-AMERICA; SOUTHWESTERN ALASKA;
COSMOGENIC NUCLIDES; HOLOCENE CLIMATE; SURFACE RUPTURE
AB Long-term slip rates for the Denali Fault in southern Alaska are derived using 10 Be cosmogenic radionuclide (CRN) dating of offset glacial moraines at two sites. Correction of 10 Be CRN model ages for the effect of snow shielding uses historical, regional snow cover data scaled to the site altitudes. To integrate the time variation of snow cover, we included the relative changes in effective wetness over the last 11 ka, derived from lake-level records and delta O-18 variations from Alaskan lakes. The moraine CRN model ages are normally distributed around an average of 12.1 +/- 1.0 ka (n = 22, +/- 1 sigma). The slip rate decreases westward from similar to 13 mm/a at 144 degrees 49'W to about 7 mm/a at 149 degrees 26'W. The data are consistent with a kinematic model in which southern Alaska translates northwestward at a rate of similar to 14 mm/a relative to a stable northern Alaska with no rotation. This suggests progressive slip partitioning between the Denali Fault and the active fold and thrust belt at the northern front of the Alaska range, with convergence rates increasing westward from similar to 4 mm/a to 11 mm/a between similar to 149 degrees W and 145 degrees W. As the two moraines sampled for this study were emplaced synchronously, our suggestion of a westward decrease in the slip rate of the Denali Fault relies largely upon the measured offsets at both sites, regardless of any potential systematic uncertainty in the CRN model ages.
C1 [Meriaux, A. -S.; Ryerson, F. J.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA.
[Sieh, K.; Meltzner, A. J.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA.
[Rubin, C. M.] Cent Washington Univ, Dept Geol Sci, Ellensburg, WA 98926 USA.
RP Meriaux, AS (reprint author), Newcastle Univ, Sch Geog Polit & Sociol, Claremont Rd, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
EM a.s.meriaux@ncl.ac.uk
RI Meriaux, Anne-Sophie/G-1754-2010; Meltzner, Aron/A-5585-2009; Taylor,
Michael/D-9939-2011;
OI Meltzner, Aron/0000-0002-2955-0896
FU NSF [EAR-0107114]
FX The sample processing and dating work was performed under the auspices
of the U. S. Department of Energy, at the University of California
Lawrence Livermore National Laboratory, under contract W-7405-Eng-48 and
under the sponsorship of the Laboratory Directed Research and
Development program (UCRL-JRNL-228719). Field work was supported by the
Gordon and Betty Moore Foundation, through the Tectonics Observatory at
Caltech, and by grant NAG5-10406 from NASA to KS. This work was also
supported by NSF research grant EAR-0107114 to CMR. We are grateful to
John Galetzka, Ana Cadena, and Keegan Fengler for their help with the
total station measurements. We thank J. Gosse and an anonymous reviewer
for their thoughtful reviews together with the associate editor Gideon
Rosenbaum for his comments. This is University of California
UCRL-JRNL-228719 and Tectonics Observatory contribution 98.
NR 78
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U1 0
U2 5
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 MAR 12
PY 2009
VL 114
AR B03404
DI 10.1029/2007JB005053
PG 19
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 419PT
UT WOS:000264232400001
ER
PT J
AU Dang, LX
Hemminger, JC
Rowland, FS
Bigeleisen, J
AF Dang, Liem X.
Hemminger, John C.
Rowland, F. Sherwood
Bigeleisen, Jacob
TI Tribute to Max Wolfsberg
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Biographical-Item
C1 [Dang, Liem X.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Hemminger, John C.; Rowland, F. Sherwood] Univ Calif Irvine, Irvine, CA USA.
RP Dang, LX (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD MAR 12
PY 2009
VL 113
IS 10
BP 1871
EP 1885
DI 10.1021/jp900405v
PG 15
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800001
ER
PT J
AU Myshakin, EM
Jiang, H
Warzinski, RP
Jordan, KD
AF Myshakin, Evgeniy M.
Jiang, Hao
Warzinski, Robert P.
Jordan, Kenneth D.
TI Molecular Dynamics Simulations of Methane Hydrate Decomposition
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID PARTICLE MESH EWALD; THERMAL-CONDUCTIVITY; CLATHRATE-HYDRATE; LIQUID
WATER; ANOMALOUS PRESERVATION; COMPUTER-SIMULATION; HEXAGONAL ICE;
FORCE-FIELDS; 1 ATM; MODEL
AB Molecular dynamics simulations have been carried out to study decomposition of methane hydrate at different cage occupancies. The decomposition rate is found to depend sensitively on the hydration number. The rate of the destruction of the cages displays Arrhenius behavior, consistent with an activated mechanism. During the simulations, reversible formation of partial water cages around methane molecules in the liquid was observed at the interface at temperatures above the Computed hydrate decomposition temperature.
C1 [Myshakin, Evgeniy M.; Warzinski, Robert P.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Jiang, Hao; Jordan, Kenneth D.] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA.
[Jiang, Hao; Jordan, Kenneth D.] Univ Pittsburgh, Ctr Mol & Mat Simulat, Pittsburgh, PA 15260 USA.
[Myshakin, Evgeniy M.] Parsons, South Pk, PA 15129 USA.
RP Myshakin, EM (reprint author), US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA.
EM evgeniy.myshakin@netl.doe.gov
RI JIANG, HAO/C-3672-2008
OI JIANG, HAO/0000-0002-4363-0112
FU National Energy Technology Laboratory [DE-AC26-04NT41817]
FX This technical effort is a part of the National Energy Technology
Laboratory ongoing research in gas hydrates under contract
DE-AC26-04NT41817, Subtask 41817.660.01.03. The authors are grateful to
Dr. N. English for helpful discussions and for providing his computer
code for the geometric hydrate-liquid distinction.
NR 77
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U1 4
U2 21
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 MAR 12
PY 2009
VL 113
IS 10
BP 1913
EP 1921
DI 10.1021/jp807208z
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800006
PM 19128002
ER
PT J
AU Ruedenberg, K
Schmidt, MW
AF Ruedenberg, Klaus
Schmidt, Michael W.
TI Physical Understanding through Variational Reasoning: Electron Sharing
and Covalent Bonding
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID CHEMICAL-BOND; QUANTUM-MECHANICS; HYDROGEN MOLECULE; KINETIC-ENERGY;
GROUND-STATE; VIRIAL; ION
AB Energy changes of stationary states resulting from geometric parameter changes in the Hamiltonian can be understood by variational reasoning in terms of the physical attributes of the kinetic and the potential energy functionals. In atoms as well as molecules, the energy minimization determines the ground state as the optimal compromise between the potential pull of the nuclear attractions and the localization-resisting kinetic pressure of the electron cloud. This variational competition is analyzed for the exact ab initio ground-state wave function of the hydrogen molecule ion to elucidate the formation of the bond. Its electronic wave function is shown to differ from the ground-state wave function of the hydrogen atom by polarization, sharing, and contraction, and the corresponding contributions to the binding energy are examined in detail. All told, the critical feature is that a molecular orbital, contracting (in the variational context) toward two nuclei simultaneously, can lower its potential energy while maintaining a certain degree of delocalization. As a consequence, its kinetic energy functional has a lower value than that of an orbital contracting toward a single nucleus equally closely. By contrast, the potential energy functional is lowered equally effectively whether the orbital contracts toward one nucleus or simultaneously toward two nuclei. Because of this weaker kinetic energy pressure, the electrostatic potential pull of the nuclei in the molecule is able to attach the orbital more tightly to each of the nuclei than the pull of the single nucleus in the atom is able to do. The role of the virial theorem is clarified. Generalizations to other molecules are discussed.
C1 [Ruedenberg, Klaus] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
RP Ruedenberg, K (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
FU Division of Chemical Sciences; Office of Basic Energy Sciences; U.S.
Department of Energy [DE-AC02-07CH 11358]
FX The authors wish to express their congratulations to Max Wolfsberg on
the occasion of his 80th birthday for the body of insightful chemical
theory that he has created over his fruitful scientific career. K.R.
would like to thank him for his warm hospitality at Brookhaven National
Laboratory in 1960. In the context of the present investigation, K.R.
expresses his profound gratitude to the late John R. Platt for his
mentoring friendship, inspiration, and stimulation half a century ago.
The authors also acknowledge repeated illuminating interactions with W.
H. E. Schwarz, W. Kutzelnigg, M.S. Gordon, and G. Frenking over the
years. The present work was supported by the Division of Chemical
Sciences, Office of Basic Energy Sciences, U.S. Department of Energy,
under Contract No. DE-AC02-07CH 11358 with Iowa State University through
the Ames Laboratory.
NR 51
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U1 2
U2 15
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 MAR 12
PY 2009
VL 113
IS 10
BP 1954
EP 1968
DI 10.1021/jp807973x
PG 15
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800010
PM 19228050
ER
PT J
AU Zhang, JX
Lourderaj, U
Addepalli, SV
de Jong, WA
Hase, WL
AF Zhang, Jiaxu
Lourderaj, Upakarasamy
Addepalli, Srirangam V.
de Jong, Wibe A.
Hase, William L.
TI Quantum Chemical Calculations of the Cl- + CH3I -> CH3Cl + I- Potential
Energy Surface
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Review
ID S(N)2 NUCLEOPHILIC-SUBSTITUTION; GAS-PHASE S(N)2; DENSITY-FUNCTIONAL
THEORY; POTENTIAL-ENERGY SURFACE; CORRELATED MOLECULAR CALCULATIONS;
GAUSSIAN-BASIS SETS; AB-INITIO; DIRECT DYNAMICS; VIBRATIONAL-EXCITATION;
DISPLACEMENT-REACTIONS
AB Electronic structure theory calculations, using MP2 theory and the DFT functionals OPBE, OLYP, HCTH407, BhandH, and B97-1, were performed to characterize the structures, vibrational frequencies, and energies for stationary points on the Cl- + CH3I -> ClCH3 + I- Potential energy surface. The aug-cc-pVDZ and aug-cc-pVTZ basis sets, with an effective core potential (ECP) for iodine, were employed. Single-point CCSD(T) calculations were performed to obtain the complete basis set (CBS) limit for the reaction energies. DFT was found to give significantly longer halide ion/carbon atom bond lengths for the ion-dipole complexes and central barrier transition state than MP2. BhandH, with either the aug-cc-pVDZ or aug-cc-pVTZ basis sets, gives good agreement with the experimental structures for both CH3I and CH3Cl. The frequencies of CH3I and CH3Cl, obtained with the different levels of theory and basis sets, are in excellent agreement with experiment. The major difference between the MP2 and DFT frequencies is for the imaginary frequency of the central barrier. Using the aug-cc-pVTZ basis the MP2 value for this frequency ranges from 1.26 to 1.59 times larger than those for the DFT functionals. Thus, the MP2 and DFT theories have different PES shapes in the vicinity of the [Cl--CH3--I](-) central barrier. The CCSD(T)/CBS energies are in good agreement with experiments for the complexation energies and reaction exothermicity, with a small I kcal/mol difference for the latter. The CCSD(T)/CBS central barrier height is lower than values deduced by using statistical theoretical models to fit the Cl- + CH3I -> ClCH3 + I- experimental rate constant, which is consistent with the expected nonstatistical dynamics for the reaction. The BhandH energies are in overall best agreement with the CCSD(T) values, with a largest difference of only 0.7 kcal/mol.
C1 [Zhang, Jiaxu; Lourderaj, Upakarasamy; Hase, William L.] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA.
[Addepalli, Srirangam V.] Texas Tech Univ, Ctr High Performance Comp, Lubbock, TX 79409 USA.
[de Jong, Wibe A.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Hase, WL (reprint author), Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA.
EM bill.hase@ttu.edu
RI DE JONG, WIBE/A-5443-2008
OI DE JONG, WIBE/0000-0002-7114-8315
FU National Science Foundation [CHE-0615321]; Robert A. Welch Foundation
[D-0005]; High-Performance Computing Center
FX This material is based upon work supported by the National Science
Foundation under Grant No. CHE-0615321 and the Robert A. Welch
Foundation under Grant No. D-0005. Support was also provided by the
High-Performance Computing Center (HPCC) at Texas Tech University, under
the direction of Philip W. Smith. This research was performed in part
using the Molecular Science Computing Facility (MSCF) in the William R.
Wiley Environmental Molecular Sciences 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. The authors wish to acknowledge important conversations with
the Roland Wester research group, at the University of Freiburg,
Germany, concerning dynamics of the Cl- + CH3I
SN2 nucleophilic substitution reaction.
NR 97
TC 14
Z9 14
U1 2
U2 25
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 MAR 12
PY 2009
VL 113
IS 10
BP 1976
EP 1984
DI 10.1021/jp808146c
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800012
PM 19115824
ER
PT J
AU Ho, MH
Klein, ML
Kuo, IFW
AF Ho, Ming-Hsun
Klein, Michael L.
Kuo, I. -F. William
TI Bulk and Interfacial Aqueous Fluoride: An Investigation via First
Principles Molecular Dynamics
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID LIQUID-VAPOR INTERFACE; PARTICLE-BASED SIMULATION; AIR/WATER INTERFACE;
WATER-SURFACE; IONS; HYDRATION; DENSITY; SOLVATION; CHEMISTRY; ELECTRON
AB Using first principles molecular dynamics simulation, we have studied a fluoride anion embedded in a periodically replicated water slab composed of 215 water molecules to mimic both bulk and interfacial solvation. In contrast to some recent experiments, our findings suggest that there are only small structural changes for fluoride and its first solvation shell in the bulk. Moreover, the presence of fluoride does not significantly alter the rotational dynamics of nearby water. In addition, we have computed the molecular dipole moments using Wannier centers. At the interface, the presence of fluoride increases the molecular dipole moments of nearby water molecules, whereas in the bulk, the dipole moments for water appear to be essentially invariant to the presence of fluoride in the vicinity. Previous studies of the air-water interface have showed interfacial water to have higher average HOMO energies and, thus, likely to be more prone to electrophilic attack. With the addition of fluoride, the most likely reactive site for electrophilic reactions shifts to the anion. This finding could explain the known large increase in reaction rates for heterogeneous process of interest in atmospheric science. The reactive properties of other anions near the air-water interface are of general interest in heterogeneous chemistry and can be elucidated using a similar type of analysis, as performed here for the fluoride anion.
C1 [Kuo, I. -F. William] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94551 USA.
[Ho, Ming-Hsun; Klein, Michael L.] Univ Penn, Ctr Mol Modeling, Philadelphia, PA 19104 USA.
[Ho, Ming-Hsun; Klein, Michael L.] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA.
RP Kuo, IFW (reprint author), Lawrence Livermore Natl Lab, Div Chem Sci, POB 808, Livermore, CA 94551 USA.
EM kuo2@llnl.gov
FU U.S. Department of Energy [DE-AC52-07NA27344]; National Institutes of
Health (NIH)
FX Part of this work was performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. Computing resources were provided by
Livermore Computing. We thank LLNL Computing staff for their help.
M.H.H. thanks the National Institutes of Health (NIH) for their
financial support.
NR 57
TC 16
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U1 3
U2 14
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 MAR 12
PY 2009
VL 113
IS 10
BP 2070
EP 2074
DI 10.1021/jp808735x
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800022
PM 19173578
ER
PT J
AU Maerzke, KA
Murdachaew, G
Mundy, CJ
Schenter, GK
Siepmann, JI
AF Maerzke, Katie A.
Murdachaew, Garold
Mundy, Christopher J.
Schenter, Gregory K.
Siepmann, J. Ilja
TI Self-Consistent Polarization Density Functional Theory: Application to
Argon
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID VAN-DER-WAALS; GENERALIZED GRADIENT APPROXIMATION; EXCHANGE-CORRELATION
FUNCTIONALS; SPACE GAUSSIAN PSEUDOPOTENTIALS; MOLECULAR-DYNAMICS METHOD;
VAPOR-LIQUID-EQUILIBRIA; AB-INITIO CALCULATIONS; RARE-GAS ATOMS; 1ST
PRINCIPLES; DISPERSION CORRECTIONS
AB We present a comprehensive set of results for argon, a case study in weak interactions, using the self-consistent polarization density functional theory (SCP-DFT). With minimal parametrization, SCP-DFT is found to give excellent results for the dimer interaction energy, the second virial coefficient, the liquid structure, and the lattice constant and cohesion energy of the face-centered cubic crystal compared to both accurate theoretical and experimental benchmarks. Thus, SCP-DFT holds promise as a fast, efficient, and accurate method for performing ab initio dynamics that include additional polarization and dispersion interactions for large, complex systems involving solvation and bond breaking.
C1 [Murdachaew, Garold; Mundy, Christopher J.; Schenter, Gregory K.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Maerzke, Katie A.; Siepmann, J. Ilja] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA.
[Maerzke, Katie A.; Siepmann, J. Ilja] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA.
RP Mundy, CJ (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
EM chris.mundy@pnl.gov; greg.schenter@pnl.gov
RI Schenter, Gregory/I-7655-2014;
OI Schenter, Gregory/0000-0001-5444-5484; Murdachaew,
Garold/0000-0001-6958-6765
FU Summer Research Institute; National Science Foundation [CTS-0553911,
CBET0756641]
FX K.A.M. would like to acknowledge support from the Summer Research
Institute at Pacific Northwest National Laboratory (PNNL). The work at
the University of Minnesota is supported through research grants from
the National Science Foundation (CTS-0553911 and CBET0756641). We are
grateful for the computer resources provided by the National Energy
Research Scientific Computing Center, the Minnesota Supercomputing
Institute. C.J.M. acknowledges computer time on NWice of the Energy
Smart Data Center housed in the EMSL, a national scientific user
facility sponsored by the Department of Energy's Office of Biological
and Environmental Research located at Pacific Northwest National
Laboratory. C.J.M. and G.K.S. would also like to gratefully acknowledge
numerous conversations with Juerg Hutter, Joost VandeVondele, and
Teodoro Laino. A special thanks to Teodoro Laino for helping with the
implementation of the restart capability for the SCP-DFT module in CP2K.
G.M. gratefully acknowledges discussions with Krzysztof Szalewicz and
earlier work and discussions on weak interactions with Giacinto Scoles.
G.K.S., C.J.M., and G.M. are supported by the U.S. Department of
Energy's (DOE) Office of Basic Energy Sciences Chemical, Geosciences and
Biosciences division. PNNL is operated by Battelle for the U.S. DOE.
NR 92
TC 16
Z9 16
U1 0
U2 15
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 MAR 12
PY 2009
VL 113
IS 10
BP 2075
EP 2085
DI 10.1021/jp808767y
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800023
PM 19260723
ER
PT J
AU Slipchenko, LV
Gordon, MS
AF Slipchenko, Lyudmila V.
Gordon, Mark S.
TI Water-Benzene Interactions: An Effective Fragment Potential and
Correlated Quantum Chemistry Study
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID MOLECULAR-ORBITAL METHODS; SELF-CONSISTENT-FIELD; DIP
INFRARED-SPECTROSCOPY; BASIS-SET CONVERGENCE; GAUSSIAN-BASIS SETS;
PI-PI-INTERACTIONS; AB-INITIO; WAVE-FUNCTIONS; COUPLED OSCILLATORS;
INTERNAL-ROTATION
AB Structures and binding in small water-benzene complexes (1-8 water molecules and 1-2 benzene molecules) are studied using the general effective fragment potential (EFP) method. The lowest energy conformers of the clusters were found using a Monte Carlo technique. The binding energies in the smallest clusters (dimers, trimers, and tetramers) were also evaluated with second order perturbation theory (MP2) and coupled cluster theory (CCSD(T)). The EFP method accurately predicts structures and binding energies in the water-benzene complexes. Benzene is polarizable and consequently participates in hydrogen bond networking of water. Since the water-benzene interactions are only slightly weaker than water-water interactions, structures with different numbers of water-water, benzene-water, and benzene-benzene bonds often have very similar binding energies. This is a challenge for computational methods.
C1 [Gordon, Mark S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Gordon, MS (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
RI Slipchenko, Lyudmila/G-5182-2012
FU Department of Energy SciDAC; National Science Foundation
FX This work was supported in part by a Department of Energy SciDAC grant
to the Ames Laboratory (MSG), and in part by a NIRT grant from the
National Science Foundation (LVS).
NR 68
TC 54
Z9 54
U1 1
U2 14
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 MAR 12
PY 2009
VL 113
IS 10
BP 2092
EP 2102
DI 10.1021/jp808845b
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 415ZK
UT WOS:000263974800025
PM 19072625
ER
PT J
AU Huang, HJ
Chen, M
Bruno, P
Lam, R
Robinson, E
Gruen, D
Ho, D
AF Huang, Houjin
Chen, Mark
Bruno, Paola
Lam, Robert
Robinson, Erik
Gruen, Dieter
Ho, Dean
TI Ultrananocrystalline Diamond Thin Films Functionalized with
Therapeutically Active Collagen Networks
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID NECROSIS-FACTOR-ALPHA; TUMOR-NECROSIS; DRUG-DELIVERY; IN-VITRO; KAPPA-B;
FLUORESCENT NANODIAMONDS; CARBON NANOTUBES; PROSTATE-CANCER;
INTERLEUKIN-6; PH
AB The fabrication of biologically amenable interfaces in medicine bridges translational technologies with their surrounding biological environment. Functionalized nanomaterials catalyze this coalescence through the creation of biomimetic and active substrates upon which a spectrum of therapeutic elements can be delivered to adherent cells to address biomolecular processes in cancer, inflammation, etc. Here, we demonstrate the robust functionalization of ultrananocrystalline diamond (UNCD) with type I collagen and dexamethasone (Dex), an anti-inflammatory drug, to fabricate a hybrid therapeutically active substrate for localized drug delivery. UNCD oxidation coupled with a pH-mediated collagen adsorption process generated a comprehensive interface between the two materials, and subsequent Dex integration, activity, and elution were confirmed through inflammatory gene expression assays. These studies confer a translational relevance to the biofunctionalized UNCD in its role as an active therapeutic network for potent regulation of cellular activity toward applications in nanomedicine.
C1 [Huang, Houjin; Robinson, Erik; Ho, Dean] Northwestern Univ, Dept Biomed Engn, Evanston, IL 60208 USA.
[Huang, Houjin; Lam, Robert; Robinson, Erik; Ho, Dean] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA.
[Chen, Mark] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Chen, Mark] Northwestern Univ, Dept Biol Sci, Evanston, IL 60208 USA.
[Bruno, Paola; Gruen, Dieter] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Ho, Dean] Northwestern Univ, Robert H Lurie Comprehens Canc Ctr, Chicago, IL 60611 USA.
RP Ho, D (reprint author), 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM d-ho@northwestern.edu
RI Ho, Dean/B-7618-2009; bruno, paola/G-5786-2011; Mahapatra,
Indrani/D-7506-2011;
OI Chen, Mark/0000-0001-5616-9321
FU National Science Foundation Center for Scalable and Integrated
NanoManufacturing (SINAM) [DMI-0327077]; Coulter Foundation Early Career
Award in Translational Research; National Institutes of Health [U54
A1065359]; U.S. DOE, BES/Materials Sciences [DE-AC02-06CH11357]
FX D.H. gratefully acknowledges support from a National Science Foundation
CAREER Award, V Foundation for Cancer Research V Scholars Award,
National Science Foundation Center for Scalable and Integrated
NanoManufacturing (SINAM) Grant DMI-0327077, Wallace H. Coulter
Foundation Early Career Award in Translational Research, and National
Institutes of Health grant U54 A1065359. Work on UNCD film synthesis was
performed under the auspices of the U.S. DOE, BES/Materials Sciences
under Contract No. DE-AC02-06CH11357.
NR 50
TC 17
Z9 17
U1 1
U2 7
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 MAR 12
PY 2009
VL 113
IS 10
BP 2966
EP 2971
DI 10.1021/jp9004086
PG 6
WC Chemistry, Physical
SC Chemistry
GA 415ZL
UT WOS:000263974900002
PM 19708260
ER
PT J
AU Sarkar, A
Ali, M
Baker, GA
Tetin, SY
Ruan, QQ
Pandey, S
AF Sarkar, Abhra
Ali, Maroof
Baker, Gary A.
Tetin, Sergey Y.
Ruan, Qiaoqiao
Pandey, Siddharth
TI Multiprobe Spectroscopic Investigation of Molecular-level Behavior
within Aqueous 1-Butyl-3-methylimidazolium Tetrafluoroborate
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Review
ID TEMPERATURE IONIC LIQUID; SOLVATOCHROMIC PROBE BEHAVIOR; SODIUM
DODECYL-SULFATE; ANGLE NEUTRON-SCATTERING; PHENOLATE BETAINE DYES;
PREFERENTIAL SOLVATION; DEPENDENT FLUORESCENCE; PHYSICAL-PROPERTIES;
SOLVENT POLARITIES; EXCIMER FORMATION
AB In this work, an array of molecular-level solvent features-including solute-solvent/solvent-solvent interactions, dipolarity, heterogeneity, dynamics, probe accessibility, and diffusion-were investigated across the entire composition of ambient mixtures containing the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4], and pH 7.0 phosphate buffer, based on results assembled for nine different molecular probes utilized in a range of spectroscopic modes. These studies uncovered interesting and unusual solvatochromic probe behavior within this benchmark mixture. Solvatochromic absorbance probes-a watersoluble betaine dye (betaine dye 33), N,N-diethyl-4-nitroanitine, and 4-nitroaniline-were employed to determine E-T (a blend of dipolarity/polarizability and hydrogen bond donor contributions) and the Kamlet-Taft indices, pi* (dipolarity/polarizability), alpha (hydrogen bond donor acidity), and P (hydrogen bond acceptor basicity) characterizing the [bmim][BF4] + phosphate buffer system. These parameters each showed a marked deviation from ideality, suggesting selective solvation of the individual probe solutes by [bmim][BF4]. Similar conclusions were derived from the responses of the fluorescent polarity-sensitive probes pyrene and pyrene-l-carboxaldehyde. Importantly, the fluorescent microfluidity probe 1,3-bis(1-pyrenyl)propane senses a microviscosity within the mixture that significantly exceeds expectations derived from simple interpolation of the behavior in the neat solvents. On the basis of results from this probe, a correlation between microviscosity and bulk viscosity was established; pronounced solvent-solvent hydrogen-bonding interactions were implicit in this behavior. The greatest deviation from ideal additive behavior for the probes studied herein was consistently observed to occur in the buffer-rich regime. Nitromethane-based fluorescence quenching of pyrene within the [bmim][BF4] + phosphate buffer system showed unusual compliance with a "sphere-of-action" quenching model, a further manifestation of the microheterogeneity of the system. Fluorescence correlation spectroscopic results for both small (BODIPY FL) and macromolecular (Texas Red-10 kDa dextran conjugate) diffusional probes provide additional evidence in support of microphase segregation inherent to aqueous [bmim][BF4].
C1 [Baker, Gary A.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Sarkar, Abhra; Ali, Maroof; Pandey, Siddharth] Indian Inst Technol, Dept Chem, New Delhi 110016, India.
[Tetin, Sergey Y.; Ruan, Qiaoqiao] Abbott Labs, Abbott Diagnost Div, Dept Biotechnol Core Res & Dev, Abbott Pk, IL 60064 USA.
RP Baker, GA (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM bakerga1@ornl.gov; sipandey@chemistry.iitd.ac.in
RI Ali, Maroof/A-3204-2014; Baker, Gary/H-9444-2016
OI Baker, Gary/0000-0002-3052-7730
NR 102
TC 38
Z9 38
U1 4
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 MAR 12
PY 2009
VL 113
IS 10
BP 3088
EP 3098
DI 10.1021/jp8098297
PG 11
WC Chemistry, Physical
SC Chemistry
GA 415ZL
UT WOS:000263974900016
PM 19260713
ER
PT J
AU Jacobson, AR
Shao, XM
Holzworth, R
AF Jacobson, Abram R.
Shao, Xuan-Min
Holzworth, Robert
TI Full-wave reflection of lightning long-wave radio pulses from the
ionospheric D region: Numerical model
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID NARROW BIPOLAR EVENTS; FIELDS REFLEXION COEFFICIENTS; ALAMOS SFERIC
ARRAY; ELECTROMAGNETIC PULSES; FORTE SATELLITE; EMISSIONS; GUIDE;
POLARIZATIONS; IONIZATION; SIMULATION
AB A model is developed for calculating ionospheric reflection of electromagnetic pulses emitted by lightning, with most energy in the long-wave spectral region (f similar to 3 - 100 kHz). The building block of the calculation is a differential equation full-wave solution of Maxwell's equations for the complex reflection of individual plane waves incident from below, by the anisotropic, dissipative, diffuse dielectric profile of the lower ionosphere. This full-wave solution is then put into a summation over plane waves in an angular direct Fourier transform to obtain the reflection properties of curved wavefronts. This step models also the diffraction effects of long-wave ionospheric reflections observed at short or medium range (similar to 200 - 500 km). The calculation can be done with any arbitrary but smooth dielectric profile versus altitude. For an initial test, this article uses the classic D region exponential profiles of electron density and collision rate given by Volland. With even these simple profiles, our model of full-wave reflection of curved wavefronts captures some of the basic attributes of observed reflected waveforms recorded with the Los Alamos Sferic Array. A follow-on article will present a detailed comparison with data in order to retrieve ionospheric parameters.
C1 [Jacobson, Abram R.; Holzworth, Robert] Univ Washington, Seattle, WA 98195 USA.
[Shao, Xuan-Min] Los Alamos Natl Lab, ISR Div, Los Alamos, NM 87545 USA.
RP Jacobson, AR (reprint author), 2314 Samish Way, Bellingham, WA 98229 USA.
EM abramj@u.washington.edu
FU National Science Foundation [NSF 0809988]
FX We are indebted to Patrick Colestock for insightful suggestions on the
calculation of curved-wavefront solutions. Two of the authors (A. J. and
R. H.) have been supported in this work by the National Science
Foundation, under grant NSF 0809988, "Using Powerful, Low-Frequency
Radio Waves from Lightning to Diagnose the D-region Ionosphere.''
NR 43
TC 17
Z9 17
U1 1
U2 4
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 MAR 11
PY 2009
VL 114
AR A03303
DI 10.1029/2008JA013642
PG 20
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 419PX
UT WOS:000264232800001
ER
PT J
AU Klimczuk, T
Zandbergen, HW
Huang, Q
McQueen, TM
Ronning, F
Kusz, B
Thompson, JD
Cava, RJ
AF Klimczuk, T.
Zandbergen, H. W.
Huang, Q.
McQueen, T. M.
Ronning, F.
Kusz, B.
Thompson, J. D.
Cava, R. J.
TI Cluster-glass behavior of a highly oxygen deficient perovskite,
BaBi0.28Co0.72O2.2
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 1st International Workshop on the Theoretical Calculation of Elnes and
Xanes
CY JUL 02-04, 2008
CL Nagoya, JAPAN
ID SPIN-GLASS; MAGNETIC-PROPERTIES; LA1-XSRXCOO3
0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.5; LOW-TEMPERATURE;
SUSCEPTIBILITY; LA0.5SR0.5COO3; TRANSITION; VISCOSITY; SYSTEM; PHASE
AB A highly oxygen deficient perovskite, BaBi0.28Co0.72O2.2, was synthesized by solid state reaction. The crystal structure was determined by means of neutron and x-ray powder diffraction. The material exhibits semiconducting behavior with an energy gap of 1.8 eV. The electron diffraction study does not reveal long range Bi: Co ordering; instead it shows the existence of short range ordering in this phase. The AC and DC magnetic susceptibility studies reveal cluster-glass behavior, which has its origin in the interacting ferromagnetic clusters present.
C1 [Klimczuk, T.; Ronning, F.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Klimczuk, T.; Zandbergen, H. W.; McQueen, T. M.; Cava, R. J.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA.
[Zandbergen, H. W.] Delft Univ Technol, Dept Nanosci, Natl Ctr HREM, NL-2682 AL Delft, Netherlands.
[Huang, Q.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Kusz, B.] Gdansk Univ Technol, Fac Appl Phys & Math, PL-80952 Gdansk, Poland.
RP Klimczuk, T (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Klimczuk, Tomasz/M-1716-2013;
OI Klimczuk, Tomasz/0000-0003-2602-5049; Ronning, Filip/0000-0002-2679-7957
NR 42
TC 4
Z9 4
U1 1
U2 10
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 MAR 11
PY 2009
VL 21
IS 10
AR 105801
DI 10.1088/0953-8984/21/10/105801
PG 7
WC Physics, Condensed Matter
SC Physics
GA 409GF
UT WOS:000263493500028
PM 21817439
ER
PT J
AU Kogan, VG
Prozorov, R
Petrovic, C
AF Kogan, V. G.
Prozorov, R.
Petrovic, C.
TI Superfluid density in gapless superconductor CeCoIn(5)
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID PENETRATION DEPTH; SCATTERING
AB Temperature dependence of the London penetration depth lambda measured in single crystals of CeCoIn(5) is interpreted as being caused by a strong pair-breaking scattering that makes the superconductivity in this compound gapless. For a gapless d-wave superconductor, we derive lambda = lambda(0) (1 - T(2)/T(c)(2))(-1/2) caused by the combined effect of magnetic and non-magnetic scattering, in excellent agreement with the data in the full temperature range and with the gapless s-wave case of Abrikosov and Gor'kov. We also obtain the slope of the upper critical field at T(c) that compares well with the measured slope.
C1 [Kogan, V. G.; Prozorov, R.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Kogan, V. G.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Petrovic, C.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Kogan, VG (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM prozorov@ameslab.gov
RI Petrovic, Cedomir/A-8789-2009; Prozorov, Ruslan/A-2487-2008
OI Petrovic, Cedomir/0000-0001-6063-1881; Prozorov,
Ruslan/0000-0002-8088-6096
FU Office of Basic Energy Sciences of the US Department of Energy
[DE-AC02-07CH11358]; Alfred P Sloan Foundation; US DOE by Brookhaven
Science Associates [DE-Ac02-98CH10886]
FX We thank P Canfield, S Bud'ko and M Tanatar for many useful discussions.
The work at the Ames Laboratory is supported by the Office of Basic
Energy Sciences of the US Department of Energy under contract no.
DE-AC02-07CH11358. RP acknowledges the support of the Alfred P Sloan
Foundation. Part of CP's work was carried out at the Brookhaven National
Laboratory operated for the US DOE by Brookhaven Science Associates
(DE-Ac02-98CH10886).
NR 21
TC 9
Z9 9
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD MAR 11
PY 2009
VL 21
IS 10
AR 102204
DI 10.1088/0953-8984/21/10/102204
PG 5
WC Physics, Condensed Matter
SC Physics
GA 409GF
UT WOS:000263493500006
PM 21817417
ER
PT J
AU Pal, R
Wang, LM
Huang, W
Wang, LS
Zeng, XC
AF Pal, Rhitankar
Wang, Lei-Ming
Huang, Wei
Wang, Lai-Sheng
Zeng, Xiao Cheng
TI Structural Evolution of Doped Gold Clusters: MAux- (M = Si, Ge, Sn;
x=5-8)
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID TRANSITION-METAL CLUSTERS; LOW-SYMMETRY STRUCTURES;
PHOTOELECTRON-SPECTROSCOPY; SILICON CLUSTERS; NANOCLUSTERS; CHEMISTRY;
CAGE; AU; PSEUDOPOTENTIALS; APPROXIMATION
AB We report a joint experimental and theoretical study on the structures of a series of gold clusters doped with a group-14 atom: MAux- (M = Si, Ge, Sn; x = 5-8). Well-resolved photoelectron spectra were obtained and compared to calculations at several levels of theory to identify the low-lying structures of MAu5-8-. We found that the structure of SiAu5- is dominated by the tetrahedrally coordinated Si motif, which can be viewed as built from the tetrahedral SiAu4- by an extra Au atom bonded to a terminal gold atom. However, SiAu6- and SiAu7- have quasi-planar structures, similar to those of GeAu6-/SnAu6- and GeAu7-/SnAu7-, respectively. SiAu8- again has a tetrahedrally coordinated Si structure, which displays a structural motif of a dangling Au-Si unit sifting on a gold cluster surface, resembling that of the larger Si-doped gold cluster SiAu16-. For M = Ge, Sn, our results show that the major isomers of GeAu5-8- have structures similar to those of the corresponding SnAu5-8- clusters, and they can be viewed as grown from the previously suggested square-pyramidal GeAu4- and SnAu4-, respectively. Population of minor isomers was observed for SnAu5-, GeAu6-, SnAu6-, and GeAu8-. The 3D to quasi-2D to 3D structural evolution for SiAu5- to SiAu8- and the structural convergence for MAux- (M = Si, Ge, Sn) at x = 6, 7 manifest competitions between the tendency of forming molecule-like structures around the group-14 dopant (optimizing M-Au interactions) and the strong tendency of forming planar structures for small gold anion clusters (optimizing Au-Au interactions).
C1 [Wang, Lei-Ming; Huang, Wei; Wang, Lai-Sheng] Washington State Univ, Dept Phys, Richland, WA 99354 USA.
[Wang, Lei-Ming; Huang, Wei; Wang, Lai-Sheng] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Pal, Rhitankar; Zeng, Xiao Cheng] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA.
RP Wang, LS (reprint author), Washington State Univ, Dept Phys, 2710 Univ Dr, Richland, WA 99354 USA.
EM ls.wang@pnl.gov; xczeng@phase2.unl.edu
RI Wang, Leiming/A-3937-2011
FU National Science Foundation [CHE-0749496]; DOE's Office of Biological
and Environmental Research and located at the Pacific Northwest National
Laboratory; National Science Foundation (CHE, CMMI, DMR/MRSEC); ARO;
Nebraska Research Initiative; UNL Research Computing Facility and
Holland Supercomputing Center at University of Nebraska-Omaha
FX The experimental work done in Washington was supported by the National
Science Foundation (CHE-0749496) and was performed at the EMSL, a
national scientific user facility sponsored by the DOE's Office of
Biological and Environmental Research and located at the Pacific
Northwest National Laboratory, operated for DOE by Battelle. The
theoretical work done in Nebraska was supported by grants from the
National Science Foundation (CHE, CMMI, DMR/MRSEC), ARO, the Nebraska
Research Initiative, and the UNL Research Computing Facility and Holland
Supercomputing Center at University of Nebraska-Omaha. We thank Dr.
Satya Bulusu for helpful discussions.
NR 54
TC 66
Z9 66
U1 1
U2 28
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 MAR 11
PY 2009
VL 131
IS 9
BP 3396
EP 3404
DI 10.1021/ja810093t
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427PY
UT WOS:000264792400059
PM 19216568
ER
PT J
AU Bamford, SP
Nichol, RC
Baldry, IK
Land, K
Lintott, CJ
Schawinski, K
Slosar, A
Szalay, AS
Thomas, D
Torki, M
Andreescu, D
Edmondson, EM
Miller, CJ
Murray, P
Raddick, MJ
Vandenberg, J
AF Bamford, Steven P.
Nichol, Robert C.
Baldry, Ivan K.
Land, Kate
Lintott, Chris J.
Schawinski, Kevin
Slosar, Anze
Szalay, Alexander S.
Thomas, Daniel
Torki, Mehri
Andreescu, Dan
Edmondson, Edward M.
Miller, Christopher J.
Murray, Phil
Raddick, M. Jordan
Vandenberg, Jan
TI Galaxy Zoo: the dependence of morphology and colour on environment
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Review
DE galaxies: clusters: general; galaxies: evolution; galaxies: fundamental
parameters; galaxies: statistics; galaxies: structure
ID DIGITAL-SKY-SURVEY; STAR-FORMATION HISTORIES; HUBBLE-SPACE-TELESCOPE;
ARTIFICIAL NEURAL-NETWORKS; PASSIVE SPIRAL GALAXIES; BAND
OPTICAL-PROPERTIES; TULLY-FISHER RELATION; EARLY DATA RELEASE; DENSITY
RELATION; S0 GALAXIES
AB We analyse the relationships between galaxy morphology, colour, environment and stellar mass using data for over 105 objects from Galaxy Zoo, the largest sample of visually classified morphologies yet compiled. We conclusively show that colour and morphology fractions are very different functions of environment. Both colour and morphology are sensitive to stellar mass. However, at fixed stellar mass, while colour is also highly sensitive to environment, morphology displays much weaker environmental trends. Only a small part of both the morphology-density and colour-density relations can be attributed to the variation in the stellar-mass function with environment.
Galaxies with high stellar masses are mostly red in all environments and irrespective of their morphology. Low stellar-mass galaxies are mostly blue in low-density environments, but mostly red in high-density environments, again irrespective of their morphology. While galaxies with early-type morphology do always have higher red fractions, this is subdominant compared to the dependence of red fraction on stellar mass and environment. The colour density relation is primarily driven by variations in colour fractions at fixed morphology, in particular the fraction of spiral galaxies that have red colours, and especially at low stellar masses. We demonstrate that our red spirals primarily include galaxies with true spiral morphology, and that they constitute an additional population to the S0 galaxies considered by previous studies. We clearly show there is an environmental dependence for colour beyond that for morphology. The environmental transformation of galaxies from blue to red must occur on significantly shorter time-scales than the transformation from spiral to early-type.
We also present many of our results as functions of the distance to the nearest galaxy group. This confirms that the environmental trends we present are not specific to the manner in which environment is quantified, but nevertheless provides plain evidence for an environmental process at work in groups. However, the properties of group members show little dependence on the total mass of the group they inhabit, at least for group masses greater than or similar to 10(13) M(circle dot).
Before using the Galaxy Zoo morphologies to produce the above results, we first quantify a luminosity-, size- and redshift-dependent classification bias that affects this data set, and probably most other studies of galaxy population morphology. A correction for this bias is derived and applied to produce a sample of galaxies with reliable morphological-type likelihoods, on which we base our analysis.
C1 [Bamford, Steven P.; Nichol, Robert C.; Thomas, Daniel; Torki, Mehri; Edmondson, Edward M.] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England.
[Bamford, Steven P.] Univ Nottingham, Ctr Astron & Particle Theory, Nottingham NG7 2RD, England.
[Baldry, Ivan K.] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England.
[Land, Kate; Lintott, Chris J.; Schawinski, Kevin] Univ Oxford, Oxford OX1 3RH, England.
[Schawinski, Kevin] Yale Univ, Dept Phys, New Haven, CT 06511 USA.
[Schawinski, Kevin] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA.
[Slosar, Anze] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA.
[Slosar, Anze] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Szalay, Alexander S.; Raddick, M. Jordan; Vandenberg, Jan] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Andreescu, Dan] LinkLab, Bronx, NY 10471 USA.
[Miller, Christopher J.] NOAO Cerro Tololo Inter Amer Observ, Tucson, AZ 85719 USA.
[Murray, Phil] Fingerprint Digital Media, Newtownards BT23 7GY, Co Down, North Ireland.
RP Bamford, SP (reprint author), Univ Portsmouth, Inst Cosmol & Gravitat, Mercantile House, Portsmouth PO1 2EG, Hants, England.
EM steven.bamford@nottingham.ac.uk
RI Bamford, Steven/E-8702-2010;
OI Bamford, Steven/0000-0001-7821-7195; Schawinski,
Kevin/0000-0001-5464-0888; Baldry, Ivan/0000-0003-0719-9385
FU STFC; Glasstone Research Fellowship; Christ Church, Oxford.; Henry
Skynner Junior Research Fellowship at Balliol College, Oxford.; Alfred
P. Sloan Foundation; National Science Foundation; US Department of
Energy; National Aeronautics and Space Administration; Japanese
Monbukagakusho; Max Planck Society; Higher Education Funding Council for
England
FX The SDSS is managed by the Astrophysical Research Consortium (ARC) for
the Participating Institutions. The Participating Institutions are the
American Museum of Natural History, Astrophysical Institute Potsdam,
University of Basel, University of Cambridge, Case Western Reserve
University, the University of Chicago, Drexel University, Fermilab, the
Institute for Advanced Study, the Japan Participation Group, the Johns
Hopkins University, the Joint Institute for Nuclear Astrophysics, the
Kavli Institute for Particle Astrophysics and Cosmology, the Korean
Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos
National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the
Max-Planck-Institute for Astrophysics (MPA), New Mexico State
University, Ohio State University, University of Pittsburgh, University
of Portsmouth, Princeton University, the United States Naval Observatory
and the University of Washington.
NR 130
TC 231
Z9 234
U1 0
U2 4
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0035-8711
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD MAR 11
PY 2009
VL 393
IS 4
BP 1324
EP 1352
DI 10.1111/j.1365-2966.2008.14252.x
PG 29
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 412XV
UT WOS:000263758400017
ER
PT J
AU Ropponen, T
Tarvainen, O
Jones, P
Peura, P
Kalvas, T
Suominen, P
Koivisto, H
Arje, J
AF Ropponen, T.
Tarvainen, O.
Jones, P.
Peura, P.
Kalvas, T.
Suominen, P.
Koivisto, H.
Arje, J.
TI The effect of magnetic field strength on the time evolution of high
energy bremsstrahlung radiation created by an electron cyclotron
resonance ion source
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE ECR; Bremsstrahlung time evolution
AB An electron cyclotron resonance (ECR) ion source is one of the most used ion source types for high charge state heavy ion production. In ECR plasma the electrons are heated by radio frequency microwaves in order to provide ionization of neutral gases. As a consequence, ECR heating also generates very high electron energies (up to MeV region) which can produce a vast amount of bremsstrahlung radiation causing problems with radiation shielding and heating superconducting cryostat of an ECR ion source. To gain information about the time evolution of the electron energies in ECR plasma radial bremsstrahlung measurements were performed. JYFL 14 GHz ECR ion source was operated in pulsed mode and time evolution measurements were done with different axial magnetic field strengths with oxygen and argon plasmas. Bremsstrahlung data were analyzed with a time interval of 2 ms yielding information at unprecedented detail about the time evolution of high energy bremsstrahlung radiation from an ECR ion source. It was observed, for example, that reaching the steady state phase of the plasma bremsstrahlung requires several hundred milliseconds and the steady state time can be different with different gases. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Ropponen, T.; Jones, P.; Peura, P.; Kalvas, T.; Koivisto, H.; Arje, J.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland.
[Tarvainen, O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Suominen, P.] Prizztech Ltd, Magnet Technol Ctr, FI-28600 Pori, Finland.
RP Ropponen, T (reprint author), Univ Jyvaskyla, Dept Phys, POB 35, FI-40014 Jyvaskyla, Finland.
EM tommi.ropponen@phys.jyu.fi
OI Peura, Pauli/0000-0002-8541-0169
FU EU [506065]; Academy of Finland; US Department of Energy
[DE-AC52-06NA25396]
FX This work has been supported by the EU 6th Framework programme
"Integrating Infrastructure Initiative-Trans national Access", Contract
no. 506065 (EURONS), by the Academy of Finland under the Finnish Centre
of Excellence Programme 2006-2011 (Nuclear and Accelerator Based Physics
Programme at JYFL) and US Department of Energy contract
DE-AC52-06NA25396. T. Ropponen would like to acknowledge financial
support from the Graduate School in Particle and Nuclear Physics. The
authors would also like to thank Dr. Daniela Leitner for valuable
discussions. The use of germanium detector from the GAMMAPOOL resource
is gratefully acknowledged.
NR 11
TC 15
Z9 15
U1 0
U2 0
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 11
PY 2009
VL 600
IS 3
BP 525
EP 533
DI 10.1016/j.nima.2008.12.065
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 422ZO
UT WOS:000264466400001
ER
PT J
AU Aryaeinejad, R
Spencer, DF
AF Aryaeinejad, R.
Spencer, D. F.
TI Stand-alone and network capable pocket radiation detection system
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Networked radiation detection; Gamma detection; Neutron detection
AB A multi-functional and networked pocket radiation detection system has been developed at the Idaho National Laboratory (INL) capable of detecting and storing gamma ray and neutron data. The device can be used as a stand-alone device or in conjunction with an array to cover a small or large area. The device has programmable alarm trigger levels that can be modified for specific applications. The data are stored with a date/time stamp and can be transferred and viewed on a PDA via direct connection or, in networked configuration, wireless connection to a remote central facility upon request. Data functional/bench tests have been completed successfully and the device was demonstrated to detect radiation from a 55.6 mu Ci (252)Cf source at 5 m and from 1.4 mCi (252)Cf source at 10 m which exceeds both ANSI and IAEA standards for pocket radiation detection. In terms of sensitivity. this detection system detects neutron and gamma-ray fields down to 10 mu rem/h levels and therefore can find the location of the radioactive source quickly. The detection system is small enough to be put in a pocket or clipped to a belt. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Aryaeinejad, R.; Spencer, D. F.] Idaho Natl Lab, Dept Reactor Phys Anal & Design, Idaho Falls, ID 83415 USA.
RP Aryaeinejad, R (reprint author), Idaho Natl Lab, Dept Reactor Phys Anal & Design, POB 1625, Idaho Falls, ID 83415 USA.
EM Rahmat.Aryaeinejad@inl.gov
FU US Department of Energy [DE-AC07-05ID14517]
FX This work was supported in part by the US Department of Energy under DOE
Idaho Operations Office Contract DE-AC07-05ID14517.
NR 7
TC 0
Z9 0
U1 0
U2 0
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 11
PY 2009
VL 600
IS 3
BP 604
EP 608
DI 10.1016/j.nima.2008.11.146
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 422ZO
UT WOS:000264466400010
ER
PT J
AU Mizuno, T
Kanai, Y
Kataoka, J
Kiss, M
Kurita, K
Pearce, M
Tajima, H
Takahashi, H
Tanaka, T
Ueno, M
Umeki, Y
Yoshida, H
Arimoto, M
Axelsson, M
Bettolo, CM
Bogaert, G
Chen, P
Craig, W
Fukazawa, Y
Gunji, S
Kamae, T
Katsuta, J
Kawai, N
Kishimoto, S
Klamra, W
Larsson, S
Madejski, G
Ng, JST
Ryde, F
Rydstrom, S
Takahashi, T
Thurston, TS
Varner, G
AF Mizuno, T.
Kanai, Y.
Kataoka, J.
Kiss, M.
Kurita, K.
Pearce, M.
Tajima, H.
Takahashi, H.
Tanaka, T.
Ueno, M.
Umeki, Y.
Yoshida, H.
Arimoto, M.
Axelsson, M.
Bettolo, C. Marini
Bogaert, G.
Chen, P.
Craig, W.
Fukazawa, Y.
Gunji, S.
Kamae, T.
Katsuta, J.
Kawai, N.
Kishimoto, S.
Klamra, W.
Larsson, S.
Madejski, G.
Ng, J. S. T.
Ryde, F.
Rydstrom, S.
Takahashi, T.
Thurston, T. S.
Varner, G.
TI A Monte Carlo method for calculating the energy response of plastic
scintillators to polarized photons below 100 keV
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article
DE Polarimetry; Monte Carlo; Plastic scintillator
ID GAMMA-RAY POLARIMETER; CRAB-NEBULA; CALIBRATION; ASTRONOMY; EMISSION
AB The energy response of plastic scintillators (Eljen Technology EJ-204) to polarized soft gamma-ray photons below 100 keV has been studied, primarily for the balloon-borne polarimeter, PoGOLite. The response calculation includes quenching effects due to low-energy recoil electrons and the position dependence of the light collection efficiency in a 20 cm long scintillator rod. The broadening of the pulse-height spectrum, presumably caused by light transportation processes inside the scintillator, as well as the generation and multiplication of photoelectrons in the photomultiplier tube, were studied experimentally and have also been taken into account. A Monte Carlo simulation based on the Geant4 toolkit was used to model photon interactions in the scintillators. When using the polarized Compton/Rayleigh scattering processes previously corrected by the authors, scintillator spectra and angular distributions of scattered polarized photons could clearly be reproduced, in agreement with the results obtained at a synchrotron beam test conducted at the KEK Photon Factory. Our simulation successfully reproduces the modulation factor, defined as the ratio of the amplitude to the mean of the distribution of the azimuthal scattering angles, within similar to 5% (relative). Although primarily developed for the PoGOLite mission, the method presented here is also relevant for other missions aiming to measure polarization from astronomical objects using plastic scintillator scatterers. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Mizuno, T.; Tanaka, T.; Umeki, Y.; Yoshida, H.; Fukazawa, Y.] Hiroshima Univ, Higashihiroshima 724, Japan.
[Kanai, Y.; Kataoka, J.; Kurita, K.; Arimoto, M.; Kawai, N.] Tokyo Inst Technol, Meguro, Japan.
[Kiss, M.; Pearce, M.; Bettolo, C. Marini; Klamra, W.; Larsson, S.; Ryde, F.] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden.
[Tajima, H.; Chen, P.; Craig, W.; Kamae, T.; Madejski, G.; Ng, J. S. T.] Stanford Linear Accelerator Ctr, Menlo Pk, CA USA.
[Axelsson, M.; Larsson, S.; Rydstrom, S.] Stockholm Univ, S-10691 Stockholm, Sweden.
[Bogaert, G.] Ecole Polytech, Palaiseau, France.
[Gunji, S.] Yamagata Univ, Yamagata 990, Japan.
[Katsuta, J.; Takahashi, T.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Kishimoto, S.] High Energy Accelerator Res Org, Tsukuba, Ibaraki, Japan.
[Thurston, T. S.] Thurston Co, Seattle, WA USA.
[Varner, G.] Univ Hawaii, Honolulu, HI 96822 USA.
RP Mizuno, T (reprint author), Hiroshima Univ, Higashihiroshima 724, Japan.
EM mizuno@hep01.hepl.hiroshima-u.ac.jp
FU Knut and Alice Wallenberg Foundation; Swedish National Space Board;
Swedish Research Council; U.S. Department of Energy; Kavli Institute for
Particle Astrophysics and Cosmology (KIPAC); Ministry of Education,
Science, Sports, and Culture (Japan) [18340052]; Institute for Space and
Astronautical Science (ISAS/JAXA); JSPS [18740154]
FX We would like to thank the KEK-PF staff for their generous and friendly
support. We also would like to thank members of X-ray Astronomy group of
Nagoya University for their support for the experiment at SPring-8. We
gratefully acknowledge support from the Knut and Alice Wallenberg
Foundation, the Swedish National Space Board, the Swedish Research
Council, the U.S. Department of Energy, and the Kavli Institute for
Particle Astrophysics and Cosmology (KIPAC) at Stanford University. T.K.
acknowledges support from the Ministry of Education, Science, Sports,
and Culture (Japan) Grant-in-Aid in Science (No. 18340052). J.K was
supported by a grant for the International Mission Research provided by
the Institute for Space and Astronautical Science (ISAS/JAXA). T.M.
acknowledges support by Grants-in-Aid for Young Scientists (B) from JSPS
(No. 18740154).
NR 21
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U1 0
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 MAR 11
PY 2009
VL 600
IS 3
BP 609
EP 617
DI 10.1016/j.nima.2008.11.148
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 422ZO
UT WOS:000264466400011
ER
PT J
AU Ansong, C
Yoon, H
Porwollik, S
Mottaz-Brewer, H
Petritis, BO
Jaitly, N
Adkins, JN
McClelland, M
Heffron, F
Smith, RD
AF Ansong, Charles
Yoon, Hyunjin
Porwollik, Steffen
Mottaz-Brewer, Heather
Petritis, Brianne O.
Jaitly, Navdeep
Adkins, Joshua N.
McClelland, Michael
Heffron, Fred
Smith, Richard D.
TI Global Systems-Level Analysis of Hfq and SmpB Deletion Mutants in
Salmonella: Implications for Virulence and Global Protein Translation
SO PLOS ONE
LA English
DT Article
AB Using sample-matched transcriptomics and proteomics measurements it is now possible to begin to understand the impact of post-transcriptional regulatory programs in Enterobacteria. In bacteria post-transcriptional regulation is mediated by relatively few identified RNA-binding protein factors including CsrA, Hfq and SmpB. A mutation in any one of these three genes, csrA, hfq, and smpB, in Salmonella is attenuated for mouse virulence and unable to survive in macrophages. CsrA has a clearly defined specificity based on binding to a specific mRNA sequence to inhibit translation. However, the proteins regulated by Hfq and SmpB are not as clearly defined. Previous work identified proteins regulated by hfq using purification of the RNA-protein complex with direct sequencing of the bound RNAs and found binding to a surprisingly large number of transcripts. In this report we have used global proteomics to directly identify proteins regulated by Hfq or SmpB by comparing protein abundance in the parent and isogenic hfq or smpB mutant. From these same samples we also prepared RNA for microarray analysis to determine if alteration of protein expression was mediated post-transcriptionally. Samples were analyzed from bacteria grown under four different conditions; two laboratory conditions and two that are thought to mimic the intracellular environment. We show that mutants of hfq and smpB directly or indirectly modulate at least 20% and 4% of all possible Salmonella proteins, respectively, with limited correlation between transcription and protein expression. These proteins represent a broad spectrum of Salmonella proteins required for many biological processes including host cell invasion, motility, central metabolism, LPS biosynthesis, two-component regulatory systems, and fatty acid metabolism. Our results represent one of the first global analyses of post-transcriptional regulons in any organism and suggest that regulation at the translational level is widespread and plays an important role in virulence regulation and environmental adaptation for Salmonella.
C1 [Ansong, Charles; Petritis, Brianne O.; Jaitly, Navdeep; Adkins, Joshua N.; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Yoon, Hyunjin; Heffron, Fred] Oregon Hlth & Sci Univ, Dept Mol Microbiol & Immunol, Portland, OR USA.
[Mottaz-Brewer, Heather] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Porwollik, Steffen; McClelland, Michael] Sidney Kimmel Canc Ctr, San Diego, CA USA.
RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM rds@pnl.gov
RI McClelland, Michael/A-8583-2011; Smith, Richard/J-3664-2012; Adkins,
Joshua/B-9881-2013;
OI Smith, Richard/0000-0002-2381-2349; Adkins, Joshua/0000-0003-0399-0700;
McClelland, Michael/0000-0003-1788-9347
FU National Institute of Allergy and Infectious Diseases NIH/DHHS
[Y1-AI-4894-01]; National Center for Research Resources [RR18522]
FX Portions of this research were supported by the National Institute of
Allergy and Infectious Diseases NIH/DHHS through interagency agreement
Y1-AI-4894-01, and the National Center for Research Resources (RR18522).
Portions of the work were performed in the Environmental Molecular
Science Laboratory, a U.S. Department of Energy (DOE) national
scientific user facility at Pacific Northwest National Laboratory (PNNL)
in Richland, WA, using capabilities established by the DOE Office of
Biological and Environmental Research. Battelle operates PNNL for the
DOE under contract DE-AC05-76RLO01830. The funders had no role in study
design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 64
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U1 1
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 MAR 11
PY 2009
VL 4
IS 3
AR e4809
DI 10.1371/journal.pone.0004809
PG 13
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 437OF
UT WOS:000265496100026
PM 19277208
ER
PT J
AU Bollen, J
Van de Sompel, H
Hagberg, A
Bettencourt, L
Chute, R
Rodriguez, MA
Balakireva, L
AF Bollen, Johan
Van de Sompel, Herbert
Hagberg, Aric
Bettencourt, Luis
Chute, Ryan
Rodriguez, Marko A.
Balakireva, Lyudmila
TI Clickstream Data Yields High-Resolution Maps of Science
SO PLOS ONE
LA English
DT Article
ID SCIENTIFIC LITERATURE; PUBLICATION DELAYS; USAGE STATISTICS; WEB; IMPACT
AB Background: Intricate maps of science have been created from citation data to visualize the structure of scientific activity. However, most scientific publications are now accessed online. Scholarly web portals record detailed log data at a scale that exceeds the number of all existing citations combined. Such log data is recorded immediately upon publication and keeps track of the sequences of user requests (clickstreams) that are issued by a variety of users across many different domains. Given these advantages of log datasets over citation data, we investigate whether they can produce high-resolution, more current maps of science.
Methodology: Over the course of 2007 and 2008, we collected nearly 1 billion user interactions recorded by the scholarly web portals of some of the most significant publishers, aggregators and institutional consortia. The resulting reference data set covers a significant part of world-wide use of scholarly web portals in 2006, and provides a balanced coverage of the humanities, social sciences, and natural sciences. A journal clickstream model, i.e. a first-order Markov chain, was extracted from the sequences of user interactions in the logs. The clickstream model was validated by comparing it to the Getty Research Institute's Architecture and Art Thesaurus. The resulting model was visualized as a journal network that outlines the relationships between various scientific domains and clarifies the connection of the social sciences and humanities to the natural sciences.
Conclusions: Maps of science resulting from large-scale clickstream data provide a detailed, contemporary view of scientific activity and correct the underrepresentation of the social sciences and humanities that is commonly found in citation data.
C1 [Bollen, Johan; Van de Sompel, Herbert; Chute, Ryan; Balakireva, Lyudmila] Los Alamos Natl Lab, Res Lib, Digital Lib Res & Prototyping Team, Los Alamos, NM 87545 USA.
[Hagberg, Aric; Bettencourt, Luis; Rodriguez, Marko A.] Los Alamos Natl Lab, Theoretical Div, Math Modeling & Anal Grp, Los Alamos, NM 87545 USA.
[Hagberg, Aric; Bettencourt, Luis; Rodriguez, Marko A.] Los Alamos Natl Lab, Ctr Nonlinear Stud, Los Alamos, NM 87545 USA.
[Bettencourt, Luis] Santa Fe Inst, Santa Fe, NM USA.
RP Bollen, J (reprint author), Los Alamos Natl Lab, Res Lib, Digital Lib Res & Prototyping Team, Los Alamos, NM 87545 USA.
EM jbollen@lanl.gov
OI Balakireva, Lyudmila/0000-0002-3919-3634; Van de Sompel,
Herbert/0000-0002-0715-6126
FU Andrew W. Mellon Foundation
FX This research was funded as part of the MESUR project
(http://www.mesur.org/) by the Andrew W. Mellon Foundation. The funders
had no role in study design, data collection and analysis, decision to
publish, or preparation of the manuscript.
NR 31
TC 86
Z9 86
U1 2
U2 19
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 MAR 11
PY 2009
VL 4
IS 3
AR e4803
DI 10.1371/journal.pone.0004803
PG 11
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 437OF
UT WOS:000265496100022
PM 19277205
ER
PT J
AU Li, HL
Wolfe, MS
Selkoe, DJ
AF Li, Huilin
Wolfe, Michael S.
Selkoe, Dennis J.
TI Toward Structural Elucidation of the gamma-Secretase Complex
SO STRUCTURE
LA English
DT Review
ID FAMILIAL ALZHEIMERS-DISEASE; INTRAMEMBRANE PROTEOLYSIS; BETA-CATENIN;
PRESENILIN ENDOPROTEOLYSIS; ELECTRON CRYOMICROSCOPY; TRANSMEMBRANE
DOMAIN; ANGSTROM RESOLUTION; MEMBRANE TOPOLOGY; CRYSTAL-STRUCTURE;
GOLGI-APPARATUS
AB gamma-Secretase is an intramembrane protease complex that mediates the Notch signaling pathway and the production of amyloid beta-proteins. As such, this enzyme has emerged as an important target for development of novel therapeutics for Alzheimer disease and cancer. Great progress has been made in the identification and characterization of the membrane complex and its biological functions. One major challenge now is to illuminate the structure of this fascinating and important protease at atomic resolution. Here, we review recent progress on biochemical and biophysical probing of the structure of the four-component complex and discuss obstacles and potential pathways toward elucidating its detailed structure.
C1 [Li, Huilin] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
[Li, Huilin] SUNY Stony Brook, Dept Biochem & Cell Biol, Stony Brook, NY 11794 USA.
[Wolfe, Michael S.; Selkoe, Dennis J.] Harvard Univ, Sch Med, Ctr Neurol Dis, Boston, MA 02115 USA.
[Wolfe, Michael S.; Selkoe, Dennis J.] Brigham & Womens Hosp, Boston, MA 02115 USA.
RP Li, HL (reprint author), Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
EM hli@bnl.gov; dselkoe@rics.bwh.harvard.edu
FU National Institutes of Health [AG15379, GM74985]; Brookhaven National
Laboratory [LDRD 05-111, 06-60]
FX We thank Tiffany Gagnon for illustrations used in Figures 1 and 2. Work
in the authors' laboratories is supported in part by grants from the
National Institutes of Health (AG15379 to M.S.W. and D.J.S.; GM74985 to
H.L.) and by the Brookhaven National Laboratory (LDRD 05-111 and 06-60
to H.L.).
NR 102
TC 50
Z9 53
U1 0
U2 5
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0969-2126
J9 STRUCTURE
JI Structure
PD MAR 11
PY 2009
VL 17
IS 3
BP 326
EP 334
DI 10.1016/j.str.2009.01.007
PG 9
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA 421AR
UT WOS:000264330800006
PM 19278647
ER
PT J
AU Mao, YB
Tran, T
Guo, X
Huang, JY
Shih, CK
Wang, KL
Chang, JP
AF Mao, Yuanbing
Tran, Thai
Guo, Xia
Huang, Jian Y.
Shih, C. Ken
Wang, Kang L.
Chang, Jane P.
TI Luminescence of Nanocrystalline Erbium-Doped Yttria
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
ID UP-CONVERSION LUMINESCENCE; CRYSTAL-FIELD ANALYSIS; RARE-EARTH IONS;
OXIDE NANOTUBES; EU-GD2O3 NANOPARTICLES; HYDROTHERMAL SYNTHESIS; RED
EMISSION; Y2O3; PHOTOLUMINESCENCE; BULK
AB In this paper, the luminescence, including photoluminescence, upconversion and cathodoluminescence, from single-crystalline erbium-doped yttria nanoparticles with an average diameter of 80 nm, synthesized by a molten salt method, is reported. Outstanding luminescent properties, including sharp and well-resolved photoluminescent lines in the infrared region, outstanding green and red upconversion emissions, and excellent cathodoluminescence, are observed from the nanocrystalline erbium-doped yttria. Moreoaver, annealing by the high power laser results in a relatively large increase in photoluminescent emission intensity without causing spectral line shift. These desirable properties make these nanocrystals promising for applications in display, bioanalysis and telecommunications.
C1 [Mao, Yuanbing; Chang, Jane P.] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA.
[Tran, Thai; Shih, C. Ken] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Guo, Xia; Wang, Kang L.] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA.
[Huang, Jian Y.] Sandia Natl Labs, CINT, Albuquerque, NM 87185 USA.
RP Mao, YB (reprint author), Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA.
EM jpchang@seas.ucla.edu
RI Mao, Yuanbing/D-5580-2009; Huang, Jianyu/C-5183-2008
FU National Science Foundation [CTS0522534]; Office of Naval Research;
Semiconductor Research Corporation; Focus Center Research Program
(FCRP); U.S. Department of Energy; Office of Basic Energy Sciences;
Laboratory Directed Research and Development (LDRD); Sandia National
Laboratories; U.S. Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX The authors acknowledge the financial and program support from National
Science Foundation (Grant CTS0522534), the Office of Naval Research (a
Young Investigator Award), and the Semiconductor Research Corporation
and its Focus Center Research Program (FCRP). The Center for integrated
Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy
Sciences, user facility, is supported by Laboratory Directed Research
and Development (LDRD), Sandia National Laboratories. Sandia is a
multiprogram laboratory operated by Sandia Corp., a Lockheed Martin Co.,
for the U.S. Department of Energy's National Nuclear Security
Administration under Contract DE-AC04-94AL85000. Supporting Information
is available online from Wiley InterScience or from the author.
NR 44
TC 88
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U1 4
U2 51
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1616-301X
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD MAR 10
PY 2009
VL 19
IS 5
BP 748
EP 754
DI 10.1002/adfm.200800880
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 423NC
UT WOS:000264502000010
ER
PT J
AU Meakin, CA
Seitenzahl, I
Townsley, D
Jordan, GC
Truran, J
Lamb, D
AF Meakin, Casey A.
Seitenzahl, Ivo
Townsley, Dean
Jordan, George C., IV
Truran, James
Lamb, Don
TI STUDY OF THE DETONATION PHASE IN THE GRAVITATIONALLY CONFINED DETONATION
MODEL OF TYPE Ia SUPERNOVAE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE nuclear reactions, nucleosynthesis, abundances; shock waves; stars:
abundances; supernovae: general; white dwarfs
ID FLUID DYNAMICAL SIMULATIONS; FAILED DEFLAGRATION MODEL;
CHANDRASEKHAR-MASS MODELS; WHITE-DWARF SUPERNOVAE; SUBGRID SCALE-MODEL;
THERMONUCLEAR SUPERNOVAE; DELAYED-DETONATION; REACTION-RATES; EXPLOSION;
PROPAGATION
AB We study the gravitationally confined detonation (GCD) model of Type Ia supernovae (SNe Ia) through the detonation phase and into homologous expansion. In the GCD model, a detonation is triggered by the surface flow due to single-point, off-center flame ignition in carbon-oxygen white dwarfs (WDs). The simulations are unique in terms of the degree to which nonidealized physics is used to treat the reactive flow, including weak reaction rates and a time-dependent treatment of material in nuclear statistical equilibrium (NSE). Careful attention is paid to accurately calculating the final composition of material which is burned to NSE and frozen out in the rapid expansion following the passage of a detonation wave over the high-density core of the WD; and an efficient method for nucleosynthesis postprocessing is developed which obviates the need for costly network calculations along tracer particle thermodynamic trajectories. Observational diagnostics are presented for the explosion models, including abundance stratifications and integrated yields. We find that for all of the ignition conditions studied here a self-regulating process comprised of neutronization and stellar expansion results in final Ni-56 masses of similar to 1.1 M-circle dot. But, more energetic models result in larger total NSE and stable Fe-peak yields. The total yield of intermediate mass elements is similar to 0.1 M-circle dot and the explosion energies are all around 1.5 x 10(51) erg. The explosion models are briefly compared to the inferred properties of recent SN Ia observations. The potential for surface detonation models to produce lower-luminosity (lower Ni-56 mass) SNe is discussed.
C1 [Meakin, Casey A.; Townsley, Dean; Jordan, George C., IV; Truran, James; Lamb, Don] Univ Chicago, Ctr Astrophys Thermonucl Flashes, Chicago, IL 60637 USA.
[Meakin, Casey A.; Townsley, Dean; Jordan, George C., IV; Truran, James; Lamb, Don] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Meakin, Casey A.; Seitenzahl, Ivo; Townsley, Dean; Truran, James] Univ Chicago, Joint Inst Nucl Astrophys, Chicago, IL 60637 USA.
[Meakin, Casey A.] Univ Arizona, Steward Observ, Tucson, AZ USA.
[Seitenzahl, Ivo; Truran, James] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Lamb, Don] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
RP Meakin, CA (reprint author), Univ Chicago, Ctr Astrophys Thermonucl Flashes, Chicago, IL 60637 USA.
EM casey.meakin@gmail.com
OI Seitenzahl, Ivo/0000-0002-5044-2988
FU Department of Energy [B523820]; ASC/Alliances Center for Astrophysical
Thermonuclear Flashes; National Science Foundation [PHY 02-16783];
Office of Nuclear Physics [DE-AC02-06CH11357]
FX We thank Snezhana Abarzhi for bringing to our attention the literature
on cumulative jets and shaped charges. We also thank Fang Peng for
making her nuclear reaction network code available to us for this work.
This work is supported in part at the University of Chicago by the
Department of Energy under Grant B523820 to the ASC/Alliances Center for
Astrophysical Thermonuclear Flashes, and the National Science Foundation
under Grant PHY 02-16783 for the Frontier Center "Joint Institute for
Nuclear Astrophysics" (JINA), and at the Argonne National Laboratory by
the U. S. Department of Energy, Office of Nuclear Physics, under
contract DE-AC02-06CH11357.
NR 57
TC 54
Z9 54
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 MAR 10
PY 2009
VL 693
IS 2
BP 1188
EP 1208
DI 10.1088/0004-637X/693/2/1188
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 417RR
UT WOS:000264095100013
ER
PT J
AU Bernstein, GM
Nakajima, R
AF Bernstein, Gary M.
Nakajima, Reiko
TI MULTIPOLE FORMULAE FOR GRAVITATIONAL LENSING SHEAR AND FLEXION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gravitational lensing; methods: analytical
ID DARK-MATTER; WEAK; GALAXIES; CLUSTER
AB The gravitational lensing equations for convergence, potential, shear, and flexion are simple in polar coordinates and separate under a multipole expansion once the shear and flexion spinors are rotated into a "tangential" basis. We use this to investigate whether the useful monopole aperture-mass shear formulae generalize to all multipoles and to flexions. We re-derive the result of Schneider and Bartelmann that the shear multipole m at radius R is completely determined by the mass multipole at R, plus specific moments Q(in)((m)) and Q(out)((m)) of the mass multipoles internal and external, respectively, to R. The m >= 0 multipoles are independent of Q(out). But in contrast to the monopole, the m < 0 multipoles are independent of Q(in). These internal and external mass moments can be determined by shear (and/or flexion) data on the complementary portion of the plane, which has practical implications for lens modeling. We find that the ease of E/B separation in the monopole aperture moments does not generalize to m not equal 0: the internal monopole moment is the only nonlocal E/B discriminant available from lensing observations. We have also not found practical local E/B discriminants beyond the monopole, though they could exist. We show also that the use of weak-lensing data to constrain a constant shear term near a strong-lensing system is impractical without strong prior constraints on the neighboring mass distribution.
C1 [Bernstein, Gary M.; Nakajima, Reiko] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA.
[Nakajima, Reiko] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Bernstein, GM (reprint author), Univ Penn, Dept Phys & Astron, 209 S 33rd St, Philadelphia, PA 19104 USA.
EM garyb@physics.upenn.edu; rnakajima@berkeley.edu
FU National Science Foundation [AST-0607667]; Department of Energy
[DOE-DE-FG02-95ER40893]; NASA [BEFS-04-0014-0018]
FX This work is supported by grants AST-0607667 from the National Science
Foundation, Department of Energy grant DOE-DE-FG02-95ER40893 and NASA
BEFS-04-0014-0018.
NR 10
TC 8
Z9 8
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 10
PY 2009
VL 693
IS 2
BP 1508
EP 1513
DI 10.1088/0004-637X/693/2/1508
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 417RR
UT WOS:000264095100042
ER
PT J
AU Smith, A
Kaaret, P
Holder, J
Falcone, A
Maier, G
Pandel, D
Stroh, M
AF Smith, A.
Kaaret, P.
Holder, J.
Falcone, A.
Maier, G.
Pandel, D.
Stroh, M.
TI LONG-TERM X-RAY MONITORING OF THE TeV BINARY LS I+61 303 WITH THE ROSSI
X-RAY TIMING EXPLORER
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE X-rays: binaries; X-rays: individual (LS I+61 303)
ID ENERGY GAMMA-RAYS; MICROQUASAR LS-I+61-303; RADIO; LSI+61-DEGREES-303;
VARIABILITY; DISCOVERY; SPECTRUM; I+61-DEGREES-303; +61-DEGREES-303;
PECULIAR
AB We report on the results of a long-term X-ray monitoring campaign of the galactic binary LS I +61 303 performed by the Rossi X-ray Timing Explorer. This data set consists of 1 ks pointings taken every other day between 2007 August 28 and 2008 February 2. The observations covered six full cycles of the 26.496 day binary period and constitute the largest continuous X-ray monitoring data set on LS I +61 303 to date with this sensitivity. There is no statistically strong detection of modulation of the flux or the photon index with orbital phase; however, we do find a strong correlation between the flux and photon index, with the spectrum becoming harder at higher fluxes. The data set contains three large flaring episodes, the largest of these reaching a flux level of 7.2(-0.2)(+0.1) x 10(-11) erg cm(-2) s(-1) in the 3-10 keV band, which is a factor 3 times larger than the flux levels typically seen in the system. Analysis of these flares shows the X-ray emission from LS I +61 303 changing by up to a factor of 6 over timescales of several hundred seconds as well as doubling times as fast as 2 s. This is the fastest variability ever observed from LS I +61 303 at this wavelength and places constraints on the size of the X-ray emitting region.
C1 [Smith, A.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Kaaret, P.; Pandel, D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Holder, J.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Holder, J.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Falcone, A.; Stroh, M.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA.
[Maier, G.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
RP Smith, A (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM awsmith@anl.gov
OI Pandel, Dirk/0000-0003-2085-5586
NR 41
TC 31
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 10
PY 2009
VL 693
IS 2
BP 1621
EP 1627
DI 10.1088/0004-637X/693/2/1621
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 417RR
UT WOS:000264095100052
ER
PT J
AU Johnson, BM
AF Johnson, Bryan M.
TI SIMPLE WAVES IN IDEAL RADIATION HYDRODYNAMICS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE hydrodynamics; radiative transfer
ID 2 SPACE DIMENSIONS; MAGNETOHYDRODYNAMICS CODE; ASTROPHYSICAL FLOWS;
ZEUS-2D; ALGORITHMS; TESTS
AB In the dynamic diffusion limit of radiation hydrodynamics, advection dominates diffusion; the latter primarily affects small scales and has negligible impact on the large-scale flow. The radiation can thus be accurately regarded as an ideal fluid, i.e., radiative diffusion can be neglected along with other forms of dissipation. This viewpoint is applied here to an analysis of simple waves in an ideal radiating fluid. It is shown that much of the hydrodynamic analysis carries over by simply replacing the material sound speed, pressure, and adiabatic index with the values appropriate for a radiating fluid. A complete analysis is performed for a centered rarefaction wave, and expressions are provided for the Riemann invariants and characteristic curves of the one-dimensional system of equations. The analytical solution is checked for consistency against a finite difference numerical integration, and the validity of neglecting the diffusion operator is demonstrated. An interesting physical result is that for a material component with a large number of internal degrees of freedom and an internal energy greater than that of the radiation, the sound speed increases as the fluid is rarefied. These solutions are an excellent test for radiation hydrodynamic codes operating in the dynamic diffusion regime. The general approach may be useful in the development of Godunov numerical schemes for radiation hydrodynamics.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Johnson, BM (reprint author), Lawrence Livermore Natl Lab, L-023,7000 E Ave, Livermore, CA 94550 USA.
NR 11
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U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 10
PY 2009
VL 693
IS 2
BP 1637
EP 1644
DI 10.1088/0004-637X/693/2/1637
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 417RR
UT WOS:000264095100054
ER
PT J
AU Joggerst, CC
Woosley, SE
Heger, A
AF Joggerst, C. C.
Woosley, S. E.
Heger, Alexander
TI MIXING IN ZERO- AND SOLAR-METALLICITY SUPERNOVAE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE early universe; hydrodynamics; instabilities; nuclear reactions,
nucleosynthesis, abundances; supernovae: general
ID CORE-COLLAPSE SUPERNOVAE; RAYLEIGH-TAYLOR INSTABILITIES; METAL-POOR
STARS; NEUTRINO-DRIVEN EXPLOSIONS; MASSIVE STARS; POSTEXPLOSION
HYDRODYNAMICS; ABUNDANCE PATTERNS; 1ST STARS; SN-1987A; NUCLEOSYNTHESIS
AB Two-dimensional simulations of mixing and fallback in nonrotating massive stars have been carried out using realistic initial models for the presupernova star and assuming standard spherically symmetric explosions of 1.2 x 10(51) erg. Stars of 15 and 25 M(circle dot) with both primordial and solar composition were modeled. The zero-metallicity supernova progenitors were compact blue stars, and the amount of Rayleigh-Taylor induced mixing in them was greatly reduced compared with what was seen in the red supergiants with solar metallicity. The compact zero-metal stars also experienced more fallback than their solar-metallicity counterparts. As a result, the ejected nucleosynthesis from the two populations was very different. For the simple explosion model assumed, low-metallicity stars ejected too little iron and intermediate-mass elements even to explain the abundance patterns in the most iron-poor stars found to date, suggesting that some important ingredient is missing. Rotation is likely to alter these conclusions by producing a greater fraction of red supergiants among Population III stars. The velocities of the heavy elements in all models considered-both red and blue supergiants-were less than observed in SN 1987A, suggesting that, at least occasionally, asymmetric aspects of the explosion mechanism and fallback play a major role in mixing.
C1 [Joggerst, C. C.; Woosley, S. E.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95060 USA.
[Joggerst, C. C.; Heger, Alexander] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Heger, Alexander] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
RP Joggerst, CC (reprint author), Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95060 USA.
EM cchurch@ucolick.org
FU NASA [NNG05GG08G]; DOE Program for Scientific Discovery (SciDAC)
[DOE-FC02-01ER41176, DOE-FC02-06ER41438]; U. S. Department of Energy at
Los Alamos National Laboratory [DE-AC52-06NA25396]
FX The authors thank Mike Zingale and Bruce Fryxell for assistance with the
FLASH code, and Brian O'Shea and Gabriel Rockefeller for helpful
comments on early drafts of this MS. The software used in this work was
in part developed by the DOE-supported ASC/Alliance Center for
Astrophysical Thermonuclear Flashes at the University of Chicago. This
research has been supported by the NASA Theory Program NNG05GG08G and
the DOE Program for Scientific Discovery through Advanced Computing
(SciDAC; grants DOE-FC02-01ER41176 and DOE-FC02-06ER41438). At LANL,
Heger and Joggerst performed this work 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.
NR 44
TC 65
Z9 65
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 10
PY 2009
VL 693
IS 2
BP 1780
EP 1802
DI 10.1088/0004-637X/693/2/1780
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 417RR
UT WOS:000264095100067
ER
PT J
AU Acciari, VA
Aliu, E
Arlen, T
Beilicke, M
Benbow, W
Bottcher, M
Bradbury, SM
Buckley, JH
Bugaev, V
Butt, Y
Byrum, K
Cannon, A
Celik, O
Cesarini, A
Chow, YC
Ciupik, L
Cogan, P
Cui, W
Daniel, MK
Dickherber, R
Ergin, T
Falcone, A
Fegan, SJ
Finley, JP
Fortin, P
Fortson, L
Furniss, A
Gall, D
Gibbs, K
Gillanders, GH
Godambe, S
Grube, J
Guenette, R
Gyuk, G
Hanna, D
Hays, E
Holder, J
Horan, D
Hui, CM
Humensky, TB
Imran, A
Kaaret, P
Karlsson, N
Kertzman, M
Kieda, D
Kildea, J
Konopelko, A
Krawczynski, H
Krennrich, F
Lang, MJ
LeBohec, S
Maier, G
McCann, A
McCutcheon, M
Millis, J
Moriarty, P
Mukherjee, R
Nagai, T
Ong, RA
Otte, N
Pandel, D
Perkins, JS
Petry, D
Pizlo, F
Pohl, M
Quinn, J
Ragan, K
Reyes, LC
Reynolds, T
Roache, E
Rose, HJ
Schroedter, M
Sembroski, GH
Smith, AW
Steele, D
Swordy, SP
Theiling, M
Toner, JA
Varlotta, A
Vassiliev, VV
Wagner, RG
Wakely, SP
Ward, JE
Weekes, TC
Weinstein, A
Williams, DA
Wissel, S
Wood, M
Zitzer, B
AF Acciari, V. A.
Aliu, E.
Arlen, T.
Beilicke, M.
Benbow, W.
Boettcher, M.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
Butt, Y.
Byrum, K.
Cannon, A.
Celik, O.
Cesarini, A.
Chow, Y. C.
Ciupik, L.
Cogan, P.
Cui, W.
Daniel, M. K.
Dickherber, R.
Ergin, T.
Falcone, A.
Fegan, S. J.
Finley, J. P.
Fortin, P.
Fortson, L.
Furniss, A.
Gall, D.
Gibbs, K.
Gillanders, G. H.
Godambe, S.
Grube, J.
Guenette, R.
Gyuk, G.
Hanna, D.
Hays, E.
Holder, J.
Horan, D.
Hui, C. M.
Humensky, T. B.
Imran, A.
Kaaret, P.
Karlsson, N.
Kertzman, M.
Kieda, D.
Kildea, J.
Konopelko, A.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
LeBohec, S.
Maier, G.
McCann, A.
McCutcheon, M.
Millis, J.
Moriarty, P.
Mukherjee, R.
Nagai, T.
Ong, R. A.
Otte, N.
Pandel, D.
Perkins, J. S.
Petry, D.
Pizlo, F.
Pohl, M.
Quinn, J.
Ragan, K.
Reyes, L. C.
Reynolds, T.
Roache, E.
Rose, H. J.
Schroedter, M.
Sembroski, G. H.
Smith, A. W.
Steele, D.
Swordy, S. P.
Theiling, M.
Toner, J. A.
Varlotta, A.
Vassiliev, V. V.
Wagner, R. G.
Wakely, S. P.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Williams, D. A.
Wissel, S.
Wood, M.
Zitzer, B.
TI VERITAS OBSERVATIONS OF A VERY HIGH ENERGY gamma-RAY FLARE FROM THE
BLAZAR 3C 66A
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE BL Lacertae objects: individual (3C 66A); galaxies: active; gamma rays:
observations
ID BL LACERTAE OBJECTS; ATMOSPHERIC CHERENKOV TELESCOPES; X-RAY; EMISSION;
3C-66A; DISCOVERY; RADIATION; ASTRONOMY; OPACITY; ARRAY
AB The intermediate-frequency peaked BL Lacertae (IBL) object 3C 66A is detected during 2007-2008 in VHE ( very high energy; E > 100 GeV) gamma rays with the VERITAS stereoscopic array of imaging atmospheric Cherenkov telescopes. An excess of 1791 events is detected, corresponding to a significance of 21.2 standard deviations (sigma), in these observations (32.8 hr live time). The observed integral flux above 200 GeV is 6% of the Crab Nebula's flux and shows evidence for variability on the timescale of days. The measured energy spectrum is characterized by a soft power law with photon index Gamma = 4.1 +/- 0.4(stat) +/- 0.6(sys). The radio galaxy 3C 66B is excluded as a possible source of the VHE emission.
C1 [Benbow, W.; Gibbs, K.; Kildea, J.; Perkins, J. S.; Roache, E.; Theiling, M.; Weekes, T. C.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
[Acciari, V. A.; Moriarty, P.] Galway Mayo Inst Technol, Dept Life & Phys Sci, Galway, Ireland.
[Aliu, E.; Holder, J.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Aliu, E.; Holder, J.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Arlen, T.; Celik, O.; Chow, Y. C.; Fegan, S. J.; Ong, R. A.; Vassiliev, V. V.; Weinstein, A.; Wood, M.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R.; Krawczynski, H.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Boettcher, M.] Ohio Univ, Dept Phys & Astron, Inst Astrophys, Athens, OH 45701 USA.
[Bradbury, S. M.; Daniel, M. K.; Rose, H. J.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Butt, Y.; Ergin, T.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Byrum, K.; Smith, A. W.; Wagner, R. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Cannon, A.; Grube, J.; Quinn, J.; Ward, J. E.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[Cesarini, A.; Gillanders, G. H.; Lang, M. J.; Toner, J. 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.
[Cogan, P.; Hanna, D.; Maier, G.; McCann, A.; McCutcheon, M.; Ragan, K.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Cui, W.; Finley, J. P.; Gall, D.; Pizlo, F.; Sembroski, G. H.; Varlotta, A.; Zitzer, B.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Falcone, A.] Penn State Univ, Davey Lab 525, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Fortin, P.; Mukherjee, R.] Columbia Univ Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
[Furniss, A.; Otte, N.; Williams, D. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Furniss, A.; Otte, N.; Williams, D. A.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Godambe, S.; Hui, C. M.; Kieda, D.; LeBohec, S.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
[Hays, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Humensky, T. B.; Swordy, S. P.; Wakely, S. P.; Wissel, S.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Imran, A.; Krennrich, F.; Nagai, T.; Pohl, M.; Schroedter, M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Kaaret, P.; Pandel, D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA.
[Konopelko, A.] Pittsburg State Univ, Dept Phys, Pittsburg, KS 66762 USA.
[Millis, J.] Anderson Univ, Dept Phys, Anderson, IN 46012 USA.
[Petry, D.] European So Observ, D-85748 Garching, Germany.
[Reyes, L. C.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Reynolds, T.] Cork Inst Technol, Dept Appl Phys & Instrumentat, Cork, Ireland.
RP Perkins, JS (reprint author), Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
EM jperkins@cfa.harvard.edu
RI Hays, Elizabeth/D-3257-2012; Daniel, Michael/A-2903-2010;
OI Cui, Wei/0000-0002-6324-5772; Daniel, Michael/0000-0002-8053-7910;
Cesarini, Andrea/0000-0002-8611-8610; Ward, John E/0000-0003-1973-0794
FU U. S. Department of Energy; U. S. National Science Foundation;
Smithsonian Institution; NSERC in Canada; Science Foundation Ireland;
STFC in the UK
FX This research was supported by grants from the U. S. Department of
Energy, the U. S. National Science Foundation and the Smithsonian
Institution, by NSERC in Canada, by Science Foundation Ireland, and by
STFC in the UK.
NR 31
TC 66
Z9 66
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD MAR 10
PY 2009
VL 693
IS 2
BP L104
EP L108
DI 10.1088/0004-637X/693/2/L104
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 419CJ
UT WOS:000264196400012
ER
PT J
AU Sullivan, M
Ellis, RS
Howell, DA
Riess, A
Nugent, PE
Gal-Yam, A
AF Sullivan, M.
Ellis, R. S.
Howell, D. A.
Riess, A.
Nugent, P. E.
Gal-Yam, A.
TI THE MEAN TYPE IA SUPERNOVA SPECTRUM OVER THE PAST NINE GIGAYEARS
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE cosmological parameters; supernovae: general; ultraviolet: general
ID HUBBLE-SPACE-TELESCOPE; ULTRAVIOLET-SPECTRA; LIGHT CURVES; INDICATORS;
EVOLUTION; REDSHIFT; OMEGA(M); DIAGRAM; MASS
AB We examine the possibility of evolution with redshift in the mean rest-frame ultraviolet (UV; lambda less than or similar to 4500 angstrom) spectrum of Type Ia Supernovae (SNe Ia) sampling the redshift range 0 < z < 1.3. We find new evidence for a decrease with redshift in the strength of intermediate-mass element (IME) features, particularly Si II and to a lesser extent Ca II "H&K" and Mg II blends, indicating lower IME abundances in the higher redshift SNe. A larger fraction of luminous, wider light-curve width (higher "stretch") SNe Ia are expected at higher redshift than locally, so we compare our observed spectral evolution with that predicted by a redshift-evolving stretch distribution coupled with a stretch-dependent SN Ia spectrum. We show that the sense of the spectral evolution can be reproduced by this simple model, though the highest redshift events seem additionally deficient in Si and Ca. We also examine the mean SN Ia UV-optical colors as a function of redshift, thought to be sensitive to variations in progenitor composition. We find that the expected stretch variations are sufficient to explain the differences, although improved data at z similar to 0 will enable more precise tests. Thus, to the extent possible with the available data sets, our results support the continued use of SNe Ia as standardized candles.
C1 [Sullivan, M.; Ellis, R. S.] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England.
[Ellis, R. S.] CALTECH, Dept Astrophys, Pasadena, CA 91125 USA.
[Howell, D. A.] Las Cumbres Observ Global Telescope Network, Goleta, CA 93117 USA.
[Howell, D. A.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Riess, A.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Nugent, P. E.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Gal-Yam, A.] Weizmann Inst Sci, Fac Phys, Astrophys Grp, IL-76100 Rehovot, Israel.
RP Sullivan, M (reprint author), Univ Oxford, Dept Astrophys, Keble Rd, Oxford OX1 3RH, England.
EM sullivan@astro.ox.ac.uk
OI Sullivan, Mark/0000-0001-9053-4820
FU Royal Society; US Department of Energy Scientific Discovery
[DE-FG02-06ER06-04]; Benoziyo Center for Astrophysics; Peter and
Patricia Gruber Awards; Eda Bess Novick New Scientists Fund at the
Weizmann Institute
FX M. S. and R. S. E. acknowledge support from the Royal Society. P. E. N.
acknowledges support from the US Department of Energy Scientific
Discovery through Advanced Computing program under contract
DE-FG02-06ER06-04. A. G. acknowledges support by the Benoziyo Center for
Astrophysics, a research grant from Peter and Patricia Gruber Awards,
and the William Z. and Eda Bess Novick New Scientists Fund at the
Weizmann Institute.
NR 28
TC 30
Z9 30
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD MAR 10
PY 2009
VL 693
IS 2
BP L76
EP L80
DI 10.1088/0004-637X/693/2/L76
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 419CJ
UT WOS:000264196400006
ER
PT J
AU Vishnu, A
Koop, M
Moody, A
Mamidala, A
Narravula, S
Panda, DK
AF Vishnu, Abhinav
Koop, Matthew
Moody, Adam
Mamidala, Amith
Narravula, Sundeep
Panda, Dhabaleswar K.
TI Topology agnostic hot-spot avoidance with InfiniBand
SO CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE
LA English
DT Article
CT 7th IEEE International Symposium on Cluster Computing and the Grid
CY MAY 14-17, 2007
CL Rio de Janeiro, BRAZIL
SP IEEE, Google, IBM, SUN Microsyst, NEC, sgi Innovat Results, CNPq, CAPES, FAPERJ, BNDES, Minist Ciencia Tecnol, BRASIL, Minist Desenvolvimento Ind Comercio Exterior, hp, Microsoft
DE InfiniBand; MPI; hot-spot; Fat Tree; LMC; collective communication
AB InfiniBand has become a very popular interconnect due to its advanced features and open standard. Large-scale InfiniBand clusters are becoming very popular, as reflected by the TOP 500 supercomputer rankings. However, even with popular topologies such as constant bi-section bandwidth Fat Tree, hot-spots may occur with InfiniBand due to inappropriate configuration of network paths, presence of other Jobs in the network and un-availability of adaptive routing. In this paper, we present a hot-spot avoidance layer (HSAL) for InfiniBand, which provides bot-spot avoidance using path bandwidth estimation and multi-pathing using LMC mechanism, without taking the network topology into account. We propose an adaptive striping policy with batch-based striping and sorting approach, for efficient utilization of disjoint network paths. Integration of HSAL with MPI, the de facto programming model of clusters, shows promising results with collective communication primitives and MPI applications. Copyright (C) 2008 John Wiley & Sons, Ltd.
C1 [Vishnu, Abhinav; Koop, Matthew; Mamidala, Amith; Narravula, Sundeep; Panda, Dhabaleswar K.] Dept Comp Sci & Engn, Columbus, OH 43210 USA.
[Moody, Adam] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Vishnu, A (reprint author), Dept Comp Sci & Engn, 395 Dreese Labs,2015 Neil Ave, Columbus, OH 43210 USA.
EM vishnu@ese.ohio-state.edu
NR 22
TC 2
Z9 2
U1 0
U2 1
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 1532-0626
J9 CONCURR COMP-PRACT E
JI Concurr. Comput.-Pract. Exp.
PD MAR 10
PY 2009
VL 21
IS 3
BP 301
EP 319
DI 10.1002/cpe.1359
PG 19
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA 410PB
UT WOS:000263588900004
ER
PT J
AU Bekel, T
Henckel, K
Kuster, H
Meyer, F
Runte, VM
Neuweger, H
Paarmann, D
Rupp, O
Zakrzewski, M
Puehler, A
Stoye, J
Goesmann, A
AF Bekel, Thomas
Henckel, Kolja
Kuester, Helge
Meyer, Folker
Runte, Virginie Mittard
Neuweger, Heiko
Paarmann, Daniel
Rupp, Oliver
Zakrzewski, Martha
Puehler, Alfred
Stoye, Jens
Goesmann, Alexander
TI The Sequence Analysis and Management System - SAMS-2.0: Data management
and sequence analysis adapted to changing requirements from traditional
sanger sequencing to ultrafast sequencing technologies
SO JOURNAL OF BIOTECHNOLOGY
LA English
DT Article
DE Whole genome shotgun sequencing; DNA sequence quality control; cDNA
sequencing; EST clustering; Ultrafast sequencing
ID COMPLETE GENOME SEQUENCE; LEGUME MEDICAGO-TRUNCATULA; TIGR GENE INDEXES;
454-PYROSEQUENCING TECHNOLOGY; ARBUSCULAR MYCORRHIZA; EST SEQUENCES;
BACTERIUM; PLATFORM; REVEALS; TOOL
AB DNA sequencing plays a more and more important role in various fields of genetics. This includes sequencing of whole genomes, libraries of cDNA clones and probes of metagenome communities. The applied sequencing technologies evolve permanently. Willi the emergence of ultrafast sequencing technologies, a new era of DNA sequencing has recently started. Concurrently, the needs for adapted bioinformatics tools arise. Since the ability to process current datasets efficiently is essential for modern genetics, a modular bioinformatics platform providing extensive sequence analysis methods, is designated to achieve well the constantly growing requirements.
The Sequence Analysis and Management System (SAMS) is a bioinformatics software platform with a database backend designed to Support the computational analysis of (1) whole genome shotgun (WGS) bacterial genome sequencing, (2) cDNA sequencing by reading expressed sequence tags (ESTs) as well as (3) sequence data obtained by Ultrafast sequencing. It provides extensive bioinformatics analysis of sequenced single reads. sequencing libraries and fragments of arbitrary DNA sequences such as assembled contigs of metagenome reads for instance. The system has been implemented to cope with several thousands of sequences, efficiently processing them and storing the results for further analysis. With the project set up, SAMS automatically recognizes the data type. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Bekel, Thomas; Henckel, Kolja; Neuweger, Heiko] Univ Bielefeld, Ctr Biotechnol CeBiTec, Int NRW Grad Sch Bioinformat & Genome Res, D-33594 Bielefeld, Germany.
[Kuester, Helge] Leibniz Univ Hannover, Inst Plant Genet, D-30419 Hannover, Germany.
[Meyer, Folker; Paarmann, Daniel] Argonne Natl Lab, Argonne, IL 60439 USA.
[Puehler, Alfred] Univ Bielefeld, Lehrstuhl Genet, D-33594 Bielefeld, Germany.
[Stoye, Jens] Univ Bielefeld, Tech Fak, AG Genominformat, D-33594 Bielefeld, Germany.
RP Bekel, T (reprint author), Univ Bielefeld, Ctr Biotechnol CeBiTec, Int NRW Grad Sch Bioinformat & Genome Res, D-33594 Bielefeld, Germany.
EM tbekel@CeBiTec.Uni-Bielefeld.DE
RI Stoye, Jens/A-2709-2012; Kuster, Helge/A-4487-2013;
OI Stoye, Jens/0000-0002-4656-7155; Meyer, Folker/0000-0003-1112-2284
FU Degussa GmbH; Bundesministerium fur Bildung und Forschung (BMBF); SysMAP
[0313704]; International Graduate School in Bioinformatics and Genome
Research; EU
FX TB acknowledges financial Support from Degussa GmbH and the
Bundesministerium fur Bildung und Forschung (BMBF), SysMAP project(grant
0313704). KH and FIN Would like to thank the International Graduate
School in Bioinformatics and Genome Research for Providing financial
Support. VMR and MZ received financial support from the EU Excellence
Network of Marine Genomics.
NR 48
TC 19
Z9 23
U1 3
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-1656
J9 J BIOTECHNOL
JI J. Biotechnol.
PD MAR 10
PY 2009
VL 140
IS 1-2
BP 3
EP 12
DI 10.1016/j.jbiotec.2009.01.006
PG 10
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 430RV
UT WOS:000265007100002
PM 19297685
ER
PT J
AU Liu, P
Rodriguez, JA
Takahashi, Y
Nakamura, K
AF Liu, Ping
Rodriguez, Jose A.
Takahashi, Yoshiro
Nakamura, Kenichi
TI Water-gas-shift reaction on a Ni2P(001) catalyst: Formation of
oxy-phosphides and highly active reaction sites
SO JOURNAL OF CATALYSIS
LA English
DT Article
DE Water-gas-shift; Nickel phosphide; Hydrogen production; Reaction
mechanism
ID MOLYBDENUM CARBIDE; METAL-SURFACES; PT-RE; ADSORPTION; MECHANISM; NI2P;
AU; CO; CU; HYDRODESULFURIZATION
AB The water-gas-shift (WGS, CO + H2O -> H-2 + CO2) reaction was studied on the Ni2P(001) surface using a combination of experimental and theoretical methods. Our experimental measurements show that Ni2P(001) displays an activity larger than that of Ni(100) or even Cu(100), which is the best metal catalyst for the WGS process. The good behavior of Ni2P is associated with the Ni oxy-phosphides formed as a result of strong O <-> P interactions. Under reaction conditions, most of the P sites of Ni2P(001) are covered with oxygen. The addition of Cs to the nickel phosphide surface increases the saturation coverage of oxygen and enhances catalytic activity. As in the case of a [NiFe] hydrogenase enzyme, the active sites of O/Ni2P(001) involve the combination of a metal and a light atom. This configuration of the active sites leads to significant changes in the reaction mechanism with respect to that on Ni(100) or Cu(100). The O atoms on the Ni2P(001) surface facilitate the WGS reaction in both direct and indirect ways. On one hand, O helps to lower the barrier for water dissociation; on the other hand, it also deactivates the Ni sites in the surface to provide moderate bonding to the adsorbates, and the barriers for each elementary step in the WGS process become lower than 1.2 eV. Our results imply that the high performances of catalysts in the WGS rely heavily on the cooperation between oxygen and metal centers with moderate activity. Published by Elsevier Inc.
C1 [Liu, Ping] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Takahashi, Yoshiro; Nakamura, Kenichi] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan.
RP Liu, P (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM pingliu3@bnl.gov
FU US Department of Energy, Division of Chemical Sciences
[DE-AC02-98CH10886]
FX The research carried out at Brookhaven National Laboratory was supported
by the US Department of Energy, Division of Chemical Sciences, under
Contract DE-AC02-98CH10886. K.N. thanks the Nippon Foundation for
Materials Science for research grants that made possible part of this
work. The authors are grateful to J. Evans for his help in the design of
the reaction cell in which kinetic studies were carried out and to T.
Asakura for the initial cleaning and preparation of the
Ni2P(001) crystal.
NR 54
TC 64
Z9 66
U1 6
U2 52
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9517
EI 1090-2694
J9 J CATAL
JI J. Catal.
PD MAR 10
PY 2009
VL 262
IS 2
BP 294
EP 303
DI 10.1016/j.jcat.2009.01.006
PG 10
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA 423OE
UT WOS:000264504800013
ER
PT J
AU Lin-Jones, J
Sohlberg, L
Dose, A
Breckler, J
Hillman, DW
Burnside, B
AF Lin-Jones, Jennifer
Sohlberg, Lorraine
Dose, Andrea
Breckler, Jennifer
Hillman, David W.
Burnside, Beth
TI Identification and Localization of Myosin Superfamily Members in Fish
Retina and Retinal Pigmented Epithelium
SO JOURNAL OF COMPARATIVE NEUROLOGY
LA English
DT Article
DE myosin; retina; photoreceptor; actin; fish; RPE
ID GTPASE-ACTIVATING PROTEIN; NONSYNDROMIC HEARING-LOSS; UNCONVENTIONAL
MYOSIN; USHER-SYNDROME; HAIR-CELLS; II-A; STRUCTURAL INTEGRITY;
HEREDITARY DEAFNESS; VERTEBRATE RETINA; VI ISOFORM
AB Myosins are cytoskeletal motors critical for generating the forces necessary for establishing cell structure and mediating actin-dependent cell motility. In each cell type a multitude of myosins are expressed, each myosin contributing to aspects of morphogenesis, transport, or motility occurring in that cell type. To examine the roles of myosins in individual retinal cell types, we first used polymerase chain reaction (PCR) screening to identify myosins expressed in retina and retinal pigmented epithelium (RPE), followed by immunohistochemistry to examine the cellular and subcellular localizations of seven of these expressed myosins. In the myosin PCR screen of cDNA from striped bass retina and striped bass RPE, we amplified 17 distinct myosins from eight myosin classes from retinal cDNA and 11 distinct myosins from seven myosin classes from RPE cDNA. By using antibodies specific for myosins IIA, IIB, IIIA, IIIB, VI, VIIA, and IXB, we examined the localization patterns of these myosins in retinas and RPE of fish, and in isolated inner/outer segment fragments of green sunfish photoreceptors. Each of the myosins exhibited unique expression patterns in fish retina. Individual cell types expressed multiple myosin family members, some of which colocalized within a particular cell type. Because much is known about the functions and properties of these myosins from studies in other systems, their cellular and subcellular localization patterns in the retina help us understand which roles they might play in the vertebrate retina and RPE. J. Comp. Neurol. 513:209-223, 2009. (c) 2009 Wiley-Liss, Inc.
C1 [Lin-Jones, Jennifer; Sohlberg, Lorraine; Dose, Andrea; Burnside, Beth] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Sohlberg, Lorraine; Breckler, Jennifer] San Francisco State Univ, Dept Biol, San Francisco, CA 94132 USA.
[Hillman, David W.] Joint Genome Inst, Walnut Creek, CA 94598 USA.
RP Lin-Jones, J (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 391 LSA 3200, Berkeley, CA 94720 USA.
EM linjones@berkeley.edu
FU National Eye Institute, National Institutes of Health [EY03575];
Research Infrastructure in Minority Institutions (RIMI) [5 P20 RR11805]
FX Grant sponsor, National Eye Institute, National Institutes of Health;
Grant number: EY03575 (to B.B.); Grant sponsor: Research Infrastructure
in Minority Institutions (RIMI); Grant number: 5 P20 RR11805 (to J.B.
and L.S.).
NR 56
TC 13
Z9 13
U1 1
U2 6
PU WILEY-LISS
PI HOBOKEN
PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0021-9967
J9 J COMP NEUROL
JI J. Comp. Neurol.
PD MAR 10
PY 2009
VL 513
IS 2
BP 209
EP 223
DI 10.1002/cne.21958
PG 15
WC Neurosciences; Zoology
SC Neurosciences & Neurology; Zoology
GA 403MR
UT WOS:000263087200007
PM 19137585
ER
PT J
AU Yuan, SW
Kirklin, S
Dorney, B
Liu, DJ
Yu, LP
AF Yuan, Shengwen
Kirklin, Scott
Dorney, Brian
Liu, Di-Jia
Yu, Luping
TI Nanoporous Polymers Containing Stereocontorted Cores for Hydrogen
Storage
SO MACROMOLECULES
LA English
DT Article
ID METAL-ORGANIC FRAMEWORKS; INTRINSIC MICROPOROSITY PIMS;
HIGH-SURFACE-AREA; POTENTIAL ADSORBENTS; ADSORPTION; NETWORKS; COPOLYMER
AB This paper reports synthesis of several nanoporous polymers containing stereocontorted cores for hydrogen storage. The spirobifluorene and tetraphenylmethane cores were used as the building blocks for the cross-linked polymers. Trimerizations of acetylinic compounds or oxidative coupling of thiophenyl compound were used for the polymerization. Characterizations on structures and hydrogen storage capacities of the resulting polymers were performed. It was found that the polymers thus prepared generally have a narrow pore size distribution, and specific surface areas up to 1000 m(2)/g were obtained. It was shown that the reaction conditions affect the size of nanopores and the surface areas. Hydrogen adsorption capacities at liquid nitrogen and ambient temperatures were measured using a Sievert isotherm apparatus.
C1 [Kirklin, Scott; Dorney, Brian; Liu, Di-Jia] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Yuan, Shengwen; Yu, Luping] Univ Chicago, Dept Chem, Chicago, IL 60637 USA.
[Yuan, Shengwen; Yu, Luping] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA.
RP Liu, DJ (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM djliu@anl.gov; lupingyu@midway.uchicago.edu
FU U.S. Department of Energy's Hydrogen, Fuel Cells and Infrastructure
Technologies; Office of Energy Efficiency and Renewable Energy
FX This work was supported by the U.S. Department of Energy's Hydrogen,
Fuel Cells and Infrastructure Technologies program under the Office of
Energy Efficiency and Renewable Energy. The authors thank Drs. Shengqian
Ma and Junbing Yang for their experimental support and helpful
discussions.
NR 28
TC 107
Z9 110
U1 6
U2 58
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAR 10
PY 2009
VL 42
IS 5
BP 1554
EP 1559
DI 10.1021/ma802394x
PG 6
WC Polymer Science
SC Polymer Science
GA 414RN
UT WOS:000263883000024
ER
PT J
AU Kong, X
Wadhwa, K
Verkade, JG
Schmidt-Rohr, K
AF Kong, Xueqian
Wadhwa, Kuldeep
Verkade, John G.
Schmidt-Rohr, Klaus
TI Determination of the Structure of a Novel Anion Exchange Fuel Cell
Membrane by Solid-State Nuclear Magnetic Resonance Spectroscopy
SO MACROMOLECULES
LA English
DT Article
ID ALKALINE-SOLUTIONS; C-13 NMR; METHANOL; OXIDATION; SELECTION; CATHODES;
NAFION
AB A novel anion exchange fuel cell membrane was Successfully synthesized by chemically attaching proazaphosphatranium/phosphatranium cations under microwave treatment to the sulfonic groups of Nafion-F. Solid-state nuclear magnetic resonance (NMR) techniques were employed to determine the actual structure and composition of this anion exchange membrane. P-31 NMR showed two main signals with a 2:1 intensity ratio and chemical shift changes of +89 and +46 ppm, respectively, from the main peak of phosphatranium chloride. H-1-P-31 heteronuclear correlation (HetCor) NMR and H-1-P-31 recoupling experiments indicated that the proton originally bonded to phosphorus in phosphatranium chloride is replaced in the major component of the Nafion-proazaphosphatranium/phosphatranium composite. F-19 NMR experiments showed that the fluorine in the -SO2F group of the Nafion-F precursor is fully replaced. P-31{F-19} rotational-echo double-resonance (REDOR) experiments measured a P-F internuclear distance of similar to 0.4 nm, which showed that the proazaphosphatranium is covalently attached to Nafion through a S-P bond. C-13 NMR and H-1-C-13 HetCor spectra indicated that the proazaphosphatranium structure is maintained even after the microwave treatment at 180 degrees C and also showed indications of entrapped dimethylformamide solvent.
C1 [Schmidt-Rohr, Klaus] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Schmidt-Rohr, K (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
EM srohr@iastate.edu
RI Kong, Xueqian/A-6406-2012
OI Kong, Xueqian/0000-0002-1901-9073
FU Department of Energy Basic Energy Sciences [DE-AC02-07CH11358];
Department of Defense AFRL [FA8650-05-C-2541]
FX Work by X.K. and K.S.-R. at the Ames Laboratory was supported by the
Department of Energy Basic Energy Sciences under Contract
DE-AC02-07CH11358. Work by K.W. and J.G.V. was supported by the
Department of Defense AFRL under Contract FA8650-05-C-2541.
NR 35
TC 37
Z9 37
U1 1
U2 31
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
EI 1520-5835
J9 MACROMOLECULES
JI Macromolecules
PD MAR 10
PY 2009
VL 42
IS 5
BP 1659
EP 1664
DI 10.1021/ma802613k
PG 6
WC Polymer Science
SC Polymer Science
GA 414RN
UT WOS:000263883000039
ER
PT J
AU Leung, BO
Hitchcock, AP
Brash, JL
Scholl, A
Doran, A
AF Leung, Bonnie O.
Hitchcock, Adam P.
Brash, John L.
Scholl, Andreas
Doran, Andrew
TI Phase Segregation in Polystyrene-Polylactide Blends
SO MACROMOLECULES
LA English
DT Article
ID IMMISCIBLE POLYMER BLENDS; X-RAY SPECTROMICROSCOPY; ADVANCED
LIGHT-SOURCE; COPOLYMER THIN-FILMS; POLY(LACTIC ACID); LACTIC-ACID;
FORCE MICROSCOPY; SURFACE; MORPHOLOGY; SPECTROSCOPY
AB Spun-cast films of polystyrene (PS) blended with polylactide (PLA) were visualized and characterized using atomic force microscopy (AFM) and synchrotron-based X-ray photoemission electron microscopy (X-PEEM). The composition of the two polymers in these systems was determined by quantitative chemical analysis of near-edge X-ray absorption signals recorded with X-PEEM. ne surface morphology depends on the ratio of the two components, the total polymer concentration, and the temperature of vacuum annealing. For most of the blends examined, PS is the continuous phase with PLA existing in discrete domains or segregated to the air-polymer interface. Phase segregation was improved with further annealing. A phase inversion occurred when films of a 40:60 PS:PLA blend (0.7 wt% loading) were annealed above the glass transition temperature (T(g)) of PLA.
C1 [Leung, Bonnie O.; Hitchcock, Adam P.] McMaster Univ, BIMR, Hamilton, ON L8S 4M1, Canada.
[Brash, John L.] McMaster Univ, Sch Biomed Engn, Hamilton, ON L8S 4M1, Canada.
[Scholl, Andreas; Doran, Andrew] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Hitchcock, AP (reprint author), McMaster Univ, BIMR, Hamilton, ON L8S 4M1, Canada.
EM aph@mcmaster.ca
RI Scholl, Andreas/K-4876-2012;
OI Doran, Andrew/0000-0001-5158-4569
FU Natural Science and Engineering Research Council (NSERC, Canada); Canada
Research Chair programs; US Department of Energy [DE-AC03-76SF00098]
FX This research is supported by the Natural Science and Engineering
Research Council (NSERC, Canada) and the Canada Research Chair programs.
X-ray microscopy was carried out using PEEM2 and the polymer STXM at the
ALS which is supported by the US Department of Energy under Contract
DE-AC03-76SF00098.
NR 47
TC 23
Z9 23
U1 0
U2 13
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAR 10
PY 2009
VL 42
IS 5
BP 1679
EP 1684
DI 10.1021/ma802176b
PG 6
WC Polymer Science
SC Polymer Science
GA 414RN
UT WOS:000263883000042
ER
PT J
AU Yoder-Himes, DR
Chain, PSG
Zhu, Y
Wurtzel, O
Rubin, EM
Tiedje, JM
Sorek, R
AF Yoder-Himes, D. R.
Chain, P. S. G.
Zhu, Y.
Wurtzel, O.
Rubin, E. M.
Tiedje, James M.
Sorek, R.
TI Mapping the Burkholderia cenocepacia niche response via high-throughput
sequencing
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE cystic fibrosis; RNA-seq; soil; transcriptomics
ID CYSTIC-FIBROSIS SPUTUM; CEPACIA COMPLEX; SIGNAL PEPTIDES; PREDICTION;
GENOMES
AB Determining how an organism responds to its environment by altering gene expression is key to understanding its ecology. Here, we used RNA-seq to comprehensively and quantitatively assess the transcriptional response of the bacterial opportunistic cystic fibrosis (CF) pathogen and endemic soil dweller, Burkholderia cenocepacia, in conditions mimicking these 2 environments. By sequencing 762 million bases of cDNA from 2 closely related B. cenocepacia strains (one isolated from a CF patient and one from soil), we identified a number of potential virulence factors expressed under CF-like conditions, whereas genes whose protein products are involved in nitrogen scavenging and 2-component sensing were among those induced under soil-like conditions. Interestingly, 13 new putative noncoding RNAs were discovered using this technique, 12 of which are preferentially induced in the soil environment, suggesting that ncRNAs play an important role in survival in the soil. In addition, we detected a surprisingly large number of regulatory differences between the 2 strains, which may represent specific adaptations to the niches from which each strain was isolated, despite their high degree of DNA sequence similarity. Compared with the CF strain, the soil strain shows a stronger global gene expression response to its environment, which is consistent with the need for a more dynamic reaction to the heterogeneous conditions of soil.
C1 [Yoder-Himes, D. R.; Chain, P. S. G.; Tiedje, James M.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA.
[Chain, P. S. G.; Zhu, Y.; Rubin, E. M.] Joint Genome Inst, Dept Energy, Microbial Program, Wlanut Creek, CA 94598 USA.
[Chain, P. S. G.] Lawrence Livermore Natl Lab, Biosci & Biotechnol Div, Livermore, CA 94550 USA.
[Wurtzel, O.; Sorek, R.] Weizmann Inst Sci, Dept Mol Genet, IL-76100 Rehovot, Israel.
[Rubin, E. M.] Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
RP Tiedje, JM (reprint author), Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA.
EM tiedjej@msu.edu
RI chain, patrick/B-9777-2013
FU US Department of Energy [DE-AC02-05CH11231, DE-AC52-07NA27344]; National
Science Foundation [516252]; National Institutes of Health [R21HL087833]
FX Wethank Feng Chen, Dorothy Lang, Stephanie Malfatti, Wei Wang, and Dr.
Robert Tempelman for help in sample preparation, figure preparation, and
data analysis. R. S. was supported by the Y. Leon Benoziyo Institute for
Molecular Medicine; the work at Lawrence Berkeley National Laboratory
and Lawrence Livermore National Laboratory was performed under the
auspices of the US Department of Energy's Office of Science, Biological
and Environmental Research Program, under contract number
DE-AC02-05CH11231 and DE-AC52-07NA27344; and the Michigan State
University work supported by National Science Foundation Grant 516252
and National Institutes of Health Grant R21HL087833.
NR 21
TC 164
Z9 172
U1 6
U2 38
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 10
PY 2009
VL 106
IS 10
BP 3976
EP 3981
DI 10.1073/pnas.0813403106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 416WT
UT WOS:000264036900060
PM 19234113
ER
PT J
AU Ajami, NK
Duan, Q
Sorooshian, S
AF Ajami, Newsha K.
Duan, Qingyun
Sorooshian, Soroosh
TI Reply to Comment by B. Renard et al. on "An integrated hydrologic
Bayesian multimodel combination framework: Confronting input, parameter,
and model structural uncertainty in hydrologic prediction''
SO WATER RESOURCES RESEARCH
LA English
DT Editorial Material
C1 [Ajami, Newsha K.] Univ Calif Berkeley, Berkeley Water Ctr, Berkeley, CA 94720 USA.
[Duan, Qingyun] Lawrence Livermore Natl Lab, Atmospher Earth & Energy Dept, Livermore, CA 94551 USA.
[Sorooshian, Soroosh] Univ Calif Irvine, Dept Civil & Environm Engn, Irvine, CA 92697 USA.
RP Ajami, NK (reprint author), Univ Calif Berkeley, Berkeley Water Ctr, 413 OBrien Hall 1718, Berkeley, CA 94720 USA.
EM newshaajami@berkeley.edu
RI sorooshian, soroosh/B-3753-2008; Duan, Qingyun/C-7652-2011; Ajami,
newsha/C-9151-2017
OI sorooshian, soroosh/0000-0001-7774-5113; Duan,
Qingyun/0000-0001-9955-1512; Ajami, newsha/0000-0003-4421-3764
NR 3
TC 4
Z9 4
U1 2
U2 11
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0043-1397
J9 WATER RESOUR RES
JI Water Resour. Res.
PD MAR 10
PY 2009
VL 45
AR W03604
DI 10.1029/2008WR007215
PG 2
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 419QI
UT WOS:000264233900005
ER
PT J
AU He, C
Zheng, H
Mitchell, JF
Foo, ML
Cava, RJ
Leighton, C
AF He, C.
Zheng, H.
Mitchell, J. F.
Foo, M. L.
Cava, R. J.
Leighton, C.
TI Low temperature Schottky anomalies in the specific heat of LaCoO3:
Defect-stabilized finite spin states
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE crystal field interactions; excited states; excitons; g-factor;
lanthanum compounds; Schottky defects; specific heat; spin dynamics;
spin-orbit interactions
ID TRANSITION
AB Measurement of the low temperature specific heat of LaCoO3 single crystals reveals a previously unobserved Schottky anomaly with an energy level splitting, 0.5 meV, that is associated with the first excited spin state of the Co3+ ion. These states persist well below 2 K and have a g-factor around 3.5, consistent with the high-spin spin-orbit triplet, implying the existence of a low density (approximately 0.1% of the sites) of finite-spin Co ions even in the T=0 limit. We propose that these states are trapped at defects and are consistent with the magnetic excitons observed in earlier work.
C1 [He, C.; Leighton, C.] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA.
[Zheng, H.; Mitchell, J. F.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Foo, M. L.; Cava, R. J.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA.
RP Leighton, C (reprint author), Univ Minnesota, Dept Chem Engn & Mat Sci, 421 Washington Ave SE, Minneapolis, MN 55455 USA.
EM leighton@umn.edu
RI Foo, Maw Lin/H-9273-2012
FU DoE [DE-FG02-06ER46275, DE-AC02-06CH11357]; NSF [DMR-0804432,
DMR02-13706]
FX Work supported primarily by DoE (Grant No. DE-FG02-06ER46275) with
additional support from NSF (Grant No. DMR-0804432 and DMR02-13706). ANL
is supported by DoE under Grant No. DE-AC02-06CH11357.
NR 30
TC 23
Z9 23
U1 1
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 9
PY 2009
VL 94
IS 10
AR 102514
DI 10.1063/1.3098374
PG 3
WC Physics, Applied
SC Physics
GA 420HO
UT WOS:000264280000065
ER
PT J
AU Chen, M
Torres, M
Walsh, T
AF Chen, Min
Torres, Monica
Walsh, Timothy
TI Existence of traveling wave solutions of a high-order nonlinear acoustic
wave equation
SO PHYSICS LETTERS A
LA English
DT Article
DE Nonlinear acoustic waves; Traveling wave solutions
ID HELMHOLTZ RESONATORS; SOLITARY WAVES; PROPAGATION; TUNNEL; ARRAY
AB In this Letter, we present an analytical study of a high-order acoustic wave equation in one dimension, and reformulate a previously given equation in terms of an expansion of the acoustic Mach number. We search for non-trivial traveling wave solutions to this equation, and also discuss the accuracy of acoustic wave equations in terms of the range of Mach numbers for which they are valid. (C) 2009 Published by Elsevier B.V.
C1 [Chen, Min; Torres, Monica] Purdue Univ, Dept Math, W Lafayette, IN 47907 USA.
[Walsh, Timothy] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Torres, M (reprint author), Purdue Univ, Dept Math, 150 N Univ St, W Lafayette, IN 47907 USA.
EM chen@math.purdue.edu; torres@math.purdue.edu; tfwalsh@sandia.gov
FU National Science Foundation [DMS-0540869]
FX Monica Torres's research was supported in part by the National Science
Foundation under grant DMS-0540869. The authors would like to thank the
anonymous referee for helpful comments.
NR 20
TC 8
Z9 8
U1 0
U2 5
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 MAR 9
PY 2009
VL 373
IS 11
BP 1037
EP 1043
DI 10.1016/j.physleta.2009.01.042
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 418SR
UT WOS:000264169600008
ER
PT J
AU Kocharian, AN
Fernando, GW
Palandage, K
Davenport, JW
AF Kocharian, A. N.
Fernando, G. W.
Palandage, K.
Davenport, J. W.
TI Electron coherent and incoherent pairing instabilities in inhomogeneous
bipartite and nonbipartite nanoclusters
SO PHYSICS LETTERS A
LA English
DT Article
DE High T(c) superconductivity; Coherent and incoherent pairing; Charge and
spin pseudogaps; Spin-charge separation; Magnetism
ID C SUPERCONDUCTOR BI2SR2CACU2O8+DELTA; HUBBARD-MODEL; PHASE-SEPARATION;
GROUND-STATE; LATTICE; ORIGIN; BAND; THERMODYNAMICS; FERROMAGNETISM;
TRANSITIONS
AB Exact calculations of collective excitations and charge/spin (pseudo) gaps in an ensemble of bipartite and nonbipartite clusters yield level crossing degeneracies, spin-charge separation. condensation and recombination of electron charge and spin driven by interaction strength, inter-site couplings and temperature. Near crossing degeneracies, the electron configurations of the lowest energies control the physics of electronic pairing, phase separation and magnetic transitions. Rigorous conditions are found for the smooth and dramatic phase transitions with competing stable and unstable inhomogeneities. Condensation of electron charge and spin degrees at various temperatures offers a new mechanism of pairing and a possible route to superconductivity in inhomogeneous systems, different from the BCS scenario. Small bipartite and frustrated clusters exhibit charge and spin inhomogeneities in many respects typical for nano and heterostructured materials. The calculated phase diagrams in various geometries may be linked to atomic scale experiments in high T(c) cuprates, manganites and other concentrated transition metal oxides. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Kocharian, A. N.] Calif State Univ Los Angeles, Dept Phys, Los Angeles, CA 90032 USA.
[Kocharian, A. N.] Santa Monica Coll, Santa Monica, CA 90405 USA.
[Fernando, G. W.; Palandage, K.] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA.
[Davenport, J. W.] Brookhaven Natl Lab, Computat Sci Ctr, Upton, NY 11973 USA.
RP Kocharian, AN (reprint author), Calif State Univ Los Angeles, Dept Phys, Los Angeles, CA 90032 USA.
EM armen.kocharian@calstatela.edu
FU US Department of Energy [DE-AC02-98CH10886]
FX We thank Daniil Khomskii and Valery Pokrovsky for helpful discussions.
This research was supported in part by US Department of Energy under
Contract No. DE-AC02-98CH10886.
NR 60
TC 14
Z9 14
U1 0
U2 1
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 MAR 9
PY 2009
VL 373
IS 11
BP 1074
EP 1082
DI 10.1016/j.physleta.2009.01.006
PG 9
WC Physics, Multidisciplinary
SC Physics
GA 418SR
UT WOS:000264169600014
ER
PT J
AU Guzey, V
Thomas, AW
Tsushima, K
AF Guzey, V.
Thomas, A. W.
Tsushima, K.
TI Medium modifications of the bound nucleon GPDs and incoherent DVCS on
nuclear targets
SO PHYSICS LETTERS B
LA English
DT Article
ID GENERALIZED PARTON DISTRIBUTIONS; VIRTUAL COMPTON-SCATTERING; EMC;
DEUTERIUM; IRON; SEA
AB We study incoherent DVCS on He-4 in the He-4(e.e'gamma p)X reaction, which probes possible medium-modifications of the bound nucleon GPDs and elastic form factors. Assuming that the bound nucleon GPDs are modified in proportion to the corresponding bound nucleon elastic form factors, as predicted in the quark-meson coupling model, we develop an approach to calculate various incoherent nuclear DVCS observables. As an example, we compute the beam-spin DVCS asymmetry, and predict the x(B)- and t-dependence of the ratio of the bound to free proton asymmetries, A(LU)(p*)(phi)/A(LU)(p)(phi). We find that the deviation of AP(LU)(p*)(phi)/A(LU)(p)(phi) from unity is as Much as similar to 6%. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Guzey, V.; Tsushima, K.] Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA.
[Thomas, A. W.] Coll William & Mary, Williamsburg, VA 23178 USA.
[Tsushima, K.] Thomas Jefferson Natl Accelerator Facil, Ctr Theory, Newport News, VA 23606 USA.
RP Guzey, V (reprint author), Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 23606 USA.
EM vguzey@jlab.org; awthomas@jlab.org; tsushima@jlab.org
RI Thomas, Anthony/G-4194-2012;
OI Thomas, Anthony/0000-0003-0026-499X; Guzey, Vadim/0000-0002-2393-8507
FU Jefferson Science Associates, LLC [DE-AC05-06OR23177]
FX Notice: Authored by Jefferson Science Associates, LLC under US DOE
Contract No. DE-AC05-06OR23177. The US Government retains a
non-exclusive, paid-up, irrevocable, world-wide license to publish or
reproduce this manuscript for US Government purposes.
NR 50
TC 7
Z9 7
U1 0
U2 0
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 MAR 9
PY 2009
VL 673
IS 1
BP 9
EP 14
DI 10.1016/j.physletb.2009.01.064
PG 6
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 419YR
UT WOS:000264256100003
ER
PT J
AU Osprey, S
Barnett, J
Smith, J
Adamson, P
Andreopoulos, C
Arms, KE
Armstrong, R
Auty, DJ
Ayres, DS
Baller, B
Barnes, PD
Barr, GD
Barrett, WL
Becker, BR
Belias, A
Bernstein, RH
Bhattacharya, D
Bishai, M
Blake, A
Bock, GJ
Boehm, J
Boehnlein, DJ
Bogert, D
Bower, C
Buckley-Geer, E
Cavanaugh, S
Chapman, JD
Cherdack, D
Childress, S
Choudhary, BC
Cobb, JH
Coleman, SJ
Culling, AJ
de Jong, JK
Dierckxsens, M
Diwan, MV
Dorman, M
Dytman, SA
Escobar, CO
Evans, JJ
Falk, E
Feldman, GJ
Frohne, MV
Gallagher, HR
Godley, A
Goodman, MC
Gouffon, P
Gran, R
Grashorn, EW
Grossman, N
Grzelak, K
Habig, A
Harris, D
Harris, PG
Hartnell, J
Hatcher, R
Himmel, A
Holin, A
Hylen, J
Irwin, GM
Ishitsuka, M
Jaffe, DE
James, C
Jensen, D
Kafka, T
Kasahara, SMS
Kim, JJ
Koizumi, G
Kopp, S
Kordosky, M
Koskinen, DJ
Kreymer, A
Kumaratunga, S
Lang, K
Ling, J
Litchfield, PJ
Litchfield, RP
Loiacono, L
Lucas, P
Ma, J
Mann, WA
Marshak, ML
Marshall, JS
Mayer, N
McGowan, AM
Meier, JR
Messier, MD
Metelko, CJ
Michael, DG
Miller, L
Miller, WH
Mishra, SR
Moore, CD
Morfin, JG
Mualem, L
Mufson, S
Musser, J
Naples, D
Nelson, JK
Newman, HB
Nichol, RJ
Nicholls, TC
Ochoa-Ricoux, JP
Oliver, WP
Ospanov, R
Paley, J
Paolone, V
Pavlovic, Z
Pawloski, G
Pearce, GF
Peck, CW
Petyt, DA
Pittam, R
Plunkett, RK
Rahaman, A
Rameika, RA
Raufer, TM
Rebel, B
Reichenbacher, J
Rodrigues, PA
Rosenfeld, C
Rubin, HA
Ruddick, K
Sanchez, MC
Saoulidou, N
Schneps, J
Schreiner, P
Seun, SM
Shanahan, P
Smart, W
Smith, C
Smith, R
Sousa, A
Speakman, B
Stamoulis, P
Strait, M
Symes, P
Tagg, N
Talaga, RL
Tavera, MA
Thomas, J
Thompson, J
Thomson, MA
Thron, JL
Tinti, G
Tzanakos, G
Urheim, J
Vahle, P
Viren, B
Watabe, M
Weber, A
Webb, RC
Wehmann, A
West, N
White, C
Wojcicki, SG
Wright, DM
Yang, T
Zhang, K
Zwaska, R
AF Osprey, S.
Barnett, J.
Smith, J.
Adamson, P.
Andreopoulos, C.
Arms, K. E.
Armstrong, R.
Auty, D. J.
Ayres, D. S.
Baller, B.
Barnes, P. D., Jr.
Barr, G. D.
Barrett, W. L.
Becker, B. R.
Belias, A.
Bernstein, R. H.
Bhattacharya, D.
Bishai, M.
Blake, A.
Bock, G. J.
Boehm, J.
Boehnlein, D. J.
Bogert, D.
Bower, C.
Buckley-Geer, E.
Cavanaugh, S.
Chapman, J. D.
Cherdack, D.
Childress, S.
Choudhary, B. C.
Cobb, J. H.
Coleman, S. J.
Culling, A. J.
de Jong, J. K.
Dierckxsens, M.
Diwan, M. V.
Dorman, M.
Dytman, S. A.
Escobar, C. O.
Evans, J. J.
Falk, E.
Feldman, G. J.
Frohne, M. V.
Gallagher, H. R.
Godley, A.
Goodman, M. C.
Gouffon, P.
Gran, R.
Grashorn, E. W.
Grossman, N.
Grzelak, K.
Habig, A.
Harris, D.
Harris, P. G.
Hartnell, J.
Hatcher, R.
Himmel, A.
Holin, A.
Hylen, J.
Irwin, G. M.
Ishitsuka, M.
Jaffe, D. E.
James, C.
Jensen, D.
Kafka, T.
Kasahara, S. M. S.
Kim, J. J.
Koizumi, G.
Kopp, S.
Kordosky, M.
Koskinen, D. J.
Kreymer, A.
Kumaratunga, S.
Lang, K.
Ling, J.
Litchfield, P. J.
Litchfield, R. P.
Loiacono, L.
Lucas, P.
Ma, J.
Mann, W. A.
Marshak, M. L.
Marshall, J. S.
Mayer, N.
McGowan, A. M.
Meier, J. R.
Messier, M. D.
Metelko, C. J.
Michael, D. G.
Miller, L.
Miller, W. H.
Mishra, S. R.
Moore, C. D.
Morfin, J. G.
Mualem, L.
Mufson, S.
Musser, J.
Naples, D.
Nelson, J. K.
Newman, H. B.
Nichol, R. J.
Nicholls, T. C.
Ochoa-Ricoux, J. P.
Oliver, W. P.
Ospanov, R.
Paley, J.
Paolone, V.
Pavlovic, Z.
Pawloski, G.
Pearce, G. F.
Peck, C. W.
Petyt, D. A.
Pittam, R.
Plunkett, R. K.
Rahaman, A.
Rameika, R. A.
Raufer, T. M.
Rebel, B.
Reichenbacher, J.
Rodrigues, P. A.
Rosenfeld, C.
Rubin, H. A.
Ruddick, K.
Sanchez, M. C.
Saoulidou, N.
Schneps, J.
Schreiner, P.
Seun, S. M.
Shanahan, P.
Smart, W.
Smith, C.
Smith, R.
Sousa, A.
Speakman, B.
Stamoulis, P.
Strait, M.
Symes, P.
Tagg, N.
Talaga, R. L.
Tavera, M. A.
Thomas, J.
Thompson, J.
Thomson, M. A.
Thron, J. L.
Tinti, G.
Tzanakos, G.
Urheim, J.
Vahle, P.
Viren, B.
Watabe, M.
Weber, A.
Webb, R. C.
Wehmann, A.
West, N.
White, C.
Wojcicki, S. G.
Wright, D. M.
Yang, T.
Zhang, K.
Zwaska, R.
TI Sudden stratospheric warmings seen in MINOS deep underground muon data
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID TROPOSPHERE
AB The rate of high energy cosmic ray muons as measured underground is shown to be strongly correlated with upper-air temperatures during short-term atmospheric (10-day) events. The effects are seen by correlating data from the MINOS underground detector and temperatures from the European Centre for Medium Range Weather Forecasts during the winter periods from 2003-2007. This effect provides an independent technique for the measurement of meteorological conditions and presents a unique opportunity to measure both short and long-term changes in this important part of the atmosphere. Citation: Osprey, S., et al. (2009), Sudden stratospheric warmings seen in MINOS deep underground muon data, Geophys. Res. Lett., 36, L05809, doi: 10.1029/2008GL036359.
C1 [Osprey, S.; Barnett, J.; Smith, J.; Barr, G. D.; Cobb, J. H.; Litchfield, R. P.; Pittam, R.; Rodrigues, P. A.; Smith, R.; Sousa, A.; Tinti, G.; Weber, A.; West, N.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England.
[Adamson, P.; Baller, B.; Bernstein, R. H.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Buckley-Geer, E.; Childress, S.; Choudhary, B. C.; Grossman, N.; Harris, D.; Hatcher, R.; Hylen, J.; James, C.; Jensen, D.; Koizumi, G.; Kreymer, A.; Lucas, P.; Moore, C. D.; Morfin, J. G.; Plunkett, R. K.; Rameika, R. A.; Rebel, B.; Saoulidou, N.; Shanahan, P.; Smart, W.; Wehmann, A.; Zwaska, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Andreopoulos, C.; Belias, A.; Dorman, M.; Metelko, C. J.; Nicholls, T. C.; Pearce, G. F.; Raufer, T. M.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Arms, K. E.; Becker, B. R.; Grashorn, E. W.; Kasahara, S. M. S.; Kumaratunga, S.; Litchfield, P. J.; Marshak, M. L.; Meier, J. R.; Miller, W. H.; Petyt, D. A.; Ruddick, K.; Speakman, B.; Strait, M.] Univ Minnesota Twin Cities, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Armstrong, R.; Bower, C.; Ishitsuka, M.; Mayer, N.; McGowan, A. M.; Messier, M. D.; Musser, J.; Paley, J.; Urheim, J.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
[Auty, D. J.; Falk, E.; Harris, P. G.; Hartnell, J.; Symes, P.; Tavera, M. A.] Univ Sussex, Dept Phys & Astron, Falmer BN1 9QH, E Sussex, England.
[Ayres, D. S.; Goodman, M. C.; McGowan, A. M.; Reichenbacher, J.; Sanchez, M. C.; Talaga, R. L.; Thron, J. L.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Barnes, P. D., Jr.; Wright, D. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Barrett, W. L.] Western Washington Univ, Dept Phys, Bellingham, WA 98225 USA.
[Bhattacharya, D.; Dytman, S. A.; Naples, D.; Paolone, V.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Bishai, M.; Dierckxsens, M.; Diwan, M. V.; Jaffe, D. E.; Viren, B.; Zhang, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Blake, A.; Chapman, J. D.; Culling, A. J.; Marshall, J. S.; Thomson, M. A.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Boehm, J.; Cavanaugh, S.; Feldman, G. J.; Seun, S. M.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
[Cherdack, D.; Gallagher, H. R.; Kafka, T.; Mann, W. A.; Oliver, W. P.; Schneps, J.; Tagg, N.] Tufts Univ, Dept Phys, Medford, MA 02155 USA.
[Coleman, S. J.; Kordosky, M.; Nelson, J. K.; Vahle, P.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA.
[de Jong, J. K.; Rubin, H. A.; White, C.] IIT, Div Phys, Chicago, IL 60616 USA.
[Dorman, M.; Evans, J. J.; Holin, A.; Kordosky, M.; Koskinen, D. J.; Nichol, R. J.; Smith, C.; Thomas, J.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Escobar, C. O.] Univ Estadual Campinas, Inst Fsica Gleb Wataghin, BR-13083970 Campinas, SP, Brazil.
[Frohne, M. V.; Schreiner, P.] Benedictine Univ, Dept Phys, Lisle, IL 60532 USA.
[Godley, A.; Kim, J. J.; Ling, J.; Mishra, S. R.; Rahaman, A.; Rosenfeld, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
[Gouffon, P.] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil.
[Gran, R.; Habig, A.] Univ Minnesota, Dept Phys, Duluth, MN 55812 USA.
[Grzelak, K.] Warsaw Univ, Fac Phys, PL-00681 Warsaw, Poland.
[Himmel, A.; Mualem, L.; Newman, H. B.; Ochoa-Ricoux, J. P.; Peck, C. W.] CALTECH, Lauritsen Lab, Pasadena, CA 91125 USA.
[Irwin, G. M.; Pawloski, G.; Wojcicki, S. G.; Yang, T.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Kopp, S.; Lang, K.; Loiacono, L.; Ma, J.; Ospanov, R.; Pavlovic, Z.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Mufson, S.] Indiana Univ, Dept Astron, Bloomington, IN 47405 USA.
[Stamoulis, P.; Tzanakos, G.] Univ Athens, Dept Phys, GR-15771 Athens, Greece.
[Watabe, M.; Webb, R. C.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
RP Osprey, S (reprint author), Univ Oxford, Dept Phys, Oxford OX1 3PU, England.
EM sosprey@atm.ox.ac.uk; giles.barr@physics.ox.ac.uk
RI Nichol, Ryan/C-1645-2008; Tinti, Gemma/I-5886-2013; Koskinen,
David/G-3236-2014; Evans, Justin/P-4981-2014; Gouffon,
Philippe/I-4549-2012; Osprey, Scott/P-6621-2016; Ling,
Jiajie/I-9173-2014; Inst. of Physics, Gleb Wataghin/A-9780-2017;
OI Cherdack, Daniel/0000-0002-3829-728X; Weber, Alfons/0000-0002-8222-6681;
Koskinen, David/0000-0002-0514-5917; Evans, Justin/0000-0003-4697-3337;
Gouffon, Philippe/0000-0001-7511-4115; Osprey,
Scott/0000-0002-8751-1211; Ling, Jiajie/0000-0003-2982-0670; Hartnell,
Jeffrey/0000-0002-1744-7955; Bernstein, Robert/0000-0002-7610-950X
NR 21
TC 13
Z9 13
U1 0
U2 7
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 MAR 7
PY 2009
VL 36
AR L05809
DI 10.1029/2008GL036359
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 415PU
UT WOS:000263947300001
ER
PT J
AU Bardhan, JP
AF Bardhan, Jaydeep P.
TI Numerical solution of boundary-integral equations for molecular
electrostatics
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID POISSON-BOLTZMANN EQUATION; POLARIZABLE CONTINUUM MODEL; IMPLICIT
SOLVENT MODELS; ELEMENT METHOD; SOLVATION ENERGIES; MACROMOLECULAR
ELECTROSTATICS; DIELECTRIC-CONSTANTS; BIOMOLECULAR SYSTEMS; PROTEIN
STRUCTURES; AB-INITIO
AB Numerous molecular processes, such as ion permeation through channel proteins, are governed by relatively small changes in energetics. As a result, theoretical investigations of these processes require accurate numerical methods. In the present paper, we evaluate the accuracy of two approaches to simulating boundary-integral equations for continuum models of the electrostatics of solvation. The analysis emphasizes boundary-element method simulations of the integral-equation formulation known as the apparent-surface-charge (ASC) method or polarizable-continuum model (PCM). In many numerical implementations of the ASC/PCM model, one forces the integral equation to be satisfied exactly at a set of discrete points on the boundary. We demonstrate in this paper that this approach to discretization, known as point collocation, is significantly less accurate than an alternative approach known as qualocation. Furthermore, the qualocation method offers this improvement in accuracy without increasing simulation time. Numerical examples demonstrate that electrostatic part of the solvation free energy, when calculated using the collocation and qualocation methods, can differ significantly; for a polypeptide, the answers can differ by as much as 10 kcal/mol (approximately 4% of the total electrostatic contribution to solvation). The applicability of the qualocation discretization to other integral-equation formulations is also discussed, and two equivalences between integral-equation methods are derived. (C) 2009 American Institute of Physics. [DOI:10.1063/1.3080769]
C1 [Bardhan, Jaydeep P.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Bardhan, Jaydeep P.] Rush Univ, Dept Physiol & Mol Biophys, Chicago, IL 60612 USA.
RP Bardhan, JP (reprint author), Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
EM jbardhan@alum.mit.edu
NR 96
TC 21
Z9 21
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 7
PY 2009
VL 130
IS 9
AR 094102
DI 10.1063/1.3080769
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 423VD
UT WOS:000264522900002
PM 19275391
ER
PT J
AU Chialvo, AA
Horita, J
AF Chialvo, Ariel A.
Horita, Juske
TI Liquid-vapor equilibrium isotopic fractionation of water: How well can
classical water models predict it?
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE fractionation; free energy; liquid-vapour transformations; molecular
dynamics method; Monte Carlo methods; potential energy functions; vapour
pressure; water
ID QUANTUM CORRECTIONS; MOLECULAR-DYNAMICS; COMPUTER-SIMULATION;
THERMODYNAMIC PROPERTIES; COEXISTENCE PROPERTIES; PHASE COEXISTENCE;
SEPARATION FACTOR; TRIPLE POINT; PRESSURE; FLUIDS
AB The liquid-vapor equilibrium isotopic fractionation of water is determined by molecular-based simulation, via Gibbs ensemble Monte Carlo and isothermal-isochoric molecular dynamics involving two radically different but realistic models, the extended simple point charge, and the Gaussian charge polarizable models. The predicted temperature dependence of the liquid-vapor equilibrium isotopic fractionation factors for (H2O)-O-18/(H2O)-O-16, (H2O)-O-17/(H2O)-O-16, and (HHO)-H-2-H-1-O-16/(H2O)-H-1-O-16 are compared against the most accurate experimental datasets to assess the ability of these intermolecular potential models to describe quantum effects according to the Kirkwood-Wigner free energy perturbation h(2)-expansion. Predictions of the vapor pressure isotopic effect for the (H2O)-O-18/(H2O)-O-16 and (H2O)-O-17/(H2O)-O-16 pairs are also presented in comparison with experimental data and two recently proposed thermodynamic modeling approaches. Finally, the simulation results are used to discuss some approximations behind the microscopic interpretation of isotopic fractionation based on the underlying rototranslational coupling.
C1 [Chialvo, Ariel A.; Horita, Juske] Oak Ridge Natl Lab, Div Chem Sci, Aqueous Chem & Geochem Grp, Oak Ridge, TN 37831 USA.
RP Chialvo, AA (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Aqueous Chem & Geochem Grp, Oak Ridge, TN 37831 USA.
EM chialvoaa@ornl.gov
OI Chialvo, Ariel/0000-0002-6091-4563
NR 61
TC 8
Z9 8
U1 0
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 MAR 7
PY 2009
VL 130
IS 9
AR 094509
DI 10.1063/1.3082401
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 423VD
UT WOS:000264522900022
PM 19275411
ER
PT J
AU Shen, MM
Liu, DJ
Jenks, CJ
Thiel, PA
Evans, JW
AF Shen, Mingmin
Liu, Da-Jiang
Jenks, C. J.
Thiel, P. A.
Evans, J. W.
TI Accelerated coarsening of Ag adatom islands on Ag(111) due to trace
amounts of S: Mass-transport mediated by Ag-S complexes
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE adsorbed layers; density functional theory; monolayers; reaction
kinetics theory; reaction-diffusion systems; scanning tunnelling
microscopy; silver; silver compounds; surface chemistry; surface
diffusion
ID SCANNING-TUNNELING-MICROSCOPY; INITIO MOLECULAR-DYNAMICS;
SELF-DIFFUSION; METAL-SURFACES; FILM GROWTH; SULFUR; AU(111); SILVER;
OXYGEN; ATOMS
AB Scanning tunneling microscopy studies reveal that trace amounts of adsorbed S below a critical coverage on the order of 10 mML have little effect on the coarsening and decay of monolayer Ag adatom islands on Ag(111) at 300 K. In contrast, above this critical coverage, decay is greatly accelerated. This critical value appears to be determined by whether all S can be accommodated at step edges. Accelerated coarsening derives from the feature that the excess S (above that incorporated at steps) produces significant populations on the terraces of metal-sulfur complexes, which are stabilized by strong Ag-S bonding. These include AgS2, Ag2S2, Ag2S3, and Ag3S3. Such complexes are sufficiently populous and mobile that they can potentially lead to greatly enhanced metal mass transport across the surface. This picture is supported by density functional theory analysis of the relevant energetics, as well as by reaction-diffusion equation modeling to assess the mechanism and degree of enhanced coarsening.
C1 [Shen, Mingmin; Thiel, P. A.] Iowa State Univ, Dept Math, Ames, IA 50011 USA.
[Liu, Da-Jiang; Jenks, C. J.; Thiel, P. A.; Evans, J. W.] US DOE, Ames Lab, Ames, IA 50011 USA.
[Thiel, P. A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Evans, J. W.] Iowa State Univ, Dept Math, Ames, IA 50011 USA.
RP Shen, MM (reprint author), Iowa State Univ, Dept Math, Ames, IA 50011 USA.
EM evans@ameslab.gov
RI Shen, Mingmin/A-9293-2012
FU U. S. DOE by Iowa State University [DE-AC02-07CH11358]; NSF
[CHE-0809472]; Division of Chemical Sciences, BES, U. S. Department of
Energy (U.S. DOE)
FX We thank Karina Morgenstern for information on previous studies of Ag
adatom island decay on S-free Ag (111). This work was supported by NSF
Grant No. CHE-0809472. D.J.L. was supported by the Division of Chemical
Sciences, BES, U. S. Department of Energy (U.S. DOE). This work was
performed at Ames Laboratory, which is operated for the U. S. DOE by
Iowa State University under Contract No. DE-AC02-07CH11358.
NR 51
TC 14
Z9 14
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 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAR 7
PY 2009
VL 130
IS 9
AR 094701
DI 10.1063/1.3078033
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 423VD
UT WOS:000264522900023
PM 19275412
ER
PT J
AU Hollingsworth, JP
Kuntz, JD
Soules, TF
AF Hollingsworth, Joel P.
Kuntz, Joshua D.
Soules, Thomas F.
TI Neodymium ion diffusion during sintering of Nd:YAG transparent ceramics
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID YTTRIUM-ALUMINUM-GARNET
AB Using an electron microprobe, we measured and characterized the Nd(3+) ion diffusion across a boundary between Nd doped and undoped ceramic yttrium aluminium garnet (YAG) for different temperature ramps and hold times and temperatures. The results show significant Nd ion diffusion on the order of micrometres to tens of micrometres depending on the time and temperature of sintering. The data fit well a model including bulk diffusion, grain boundary diffusion and grain growth. Grain boundary diffusion dominates and grain growth limits grain boundary diffusion by reducing the total cross-sectional area of grain boundaries.
C1 [Hollingsworth, Joel P.; Kuntz, Joshua D.; Soules, Thomas F.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Hollingsworth, JP (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave, Livermore, CA 94550 USA.
FU US Department of Energy [W-7405-ENG-48]
FX The authors gratefully acknowledge Dr Richard Landingham for many
helpful suggestions, Rick Ryerson for the electron microprobe
measurements and Ed Lindsey for the electron microscopy. This work was
performed under the auspices of the US Department of Energy by Lawrence
Livermore National Laboratory under Contract No. W-7405-ENG-48.
NR 9
TC 8
Z9 8
U1 0
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD MAR 7
PY 2009
VL 42
IS 5
AR 052001
DI 10.1088/0022-3727/42/5/052001
PG 5
WC Physics, Applied
SC Physics
GA 410GJ
UT WOS:000263565200001
ER
PT J
AU Rahimi, R
Miller, CM
Raghavan, S
Stinespring, CD
Korakakis, D
AF Rahimi, R.
Miller, C. M.
Raghavan, S.
Stinespring, C. D.
Korakakis, D.
TI Electrical properties of strained nano-thin 3C-SiC/Si heterostructures
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; SCHOTTKY-BARRIER HEIGHTS; SILICON-CARBIDE;
HIGH-TEMPERATURE; OHMIC CONTACTS; GAS SENSORS; EPITAXIAL MULTILAYERS;
RAMAN-SCATTERING; BAND-GAP; SI
AB The effects of strain on the conduction mechanism in heterostructures consisting of strained nano-thin 3C-SiC films on Si are reported. These films exhibit significantly different electrical behaviours than the bulk material. Strained nano-thin 3C-SiC films were grown on n-type Si substrates by gas source molecular beam epitaxy. Reflection high-energy electron diffraction patterns show that these films are about 3% strained relative to the SiC lattice constant. In order to investigate the electrical properties of thin film structures, Al, Cr and Pt contacts to a nano-thin film 3C-SiC were deposited and characterized. The I-V measurements of the strained nano-thin films demonstrate back-to-back Schottky diode characteristics and the band offsets due to the biaxial tensile strain introduced within the 3C-SiC films were calculated and simulated. Based on the experimental and simulation results, an empirical model for the current transport in the heterostructures based on strained nano-thin films has been proposed. It was found that due to the band alignment of this structure, current is constrained at the surface which allows use of nano-thin films as surface sensors.
C1 [Rahimi, R.; Miller, C. M.; Raghavan, S.; Korakakis, D.] W Virginia Univ, Lane Dept Comp Sci & Elect Engn, Morgantown, WV 26506 USA.
[Stinespring, C. D.] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA.
[Korakakis, D.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Rahimi, R (reprint author), W Virginia Univ, Lane Dept Comp Sci & Elect Engn, Morgantown, WV 26506 USA.
EM rrahimi@mix.wvu.edu
FU National Energy Technology Laboratory's [04NT41817.606.02.09]; WVNano
Bridge Award, West Virginia University
FX This technical effort was performed in support of the National Energy
Technology Laboratory's under the DOE/RDS, LLC Contract No
DE-AC-04NT41817.606.02.09. RR has been partially supported through the
WVNano Bridge Award, West Virginia University.
NR 48
TC 3
Z9 3
U1 1
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD MAR 7
PY 2009
VL 42
IS 5
AR 055108
DI 10.1088/0022-3727/42/5/055108
PG 8
WC Physics, Applied
SC Physics
GA 410GJ
UT WOS:000263565200026
ER
PT J
AU Wong, BM
Morales, AM
AF Wong, Bryan M.
Morales, Alfredo M.
TI Enhanced photocurrent efficiency of a carbon nanotube p-n junction
electromagnetically coupled to a photonic structure
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID CRYSTAL-STRUCTURES
AB We present photocurrent power-enhancement calculations of a carbon nanotube p-n junction electromagnetically coupled to a highly efficient photonic structure. Particular attention is paid to a GaAs photonic structure specifically modified to increase the intensity of infrared light onto the nanotube region for effective energy conversion. Using finite-difference time-domain calculations, we compute a significant increase in electric field intensity in the nanotube region which enables an estimation of power efficiency. These results demonstrate the potential of using a photonic structure to couple large-scale infrared sources with carbon nanotubes while still retaining all the unique optoelectronic properties found at the nanoscale.
C1 [Wong, Bryan M.; Morales, Alfredo M.] Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA.
RP Wong, BM (reprint author), Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA.
EM bmwong@sandia.gov
RI Wong, Bryan/B-1663-2009
OI Wong, Bryan/0000-0002-3477-8043
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX Supported by the Laboratory Directed Research and Development program at
Sandia National Laboratory, 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 19
TC 9
Z9 9
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD MAR 7
PY 2009
VL 42
IS 5
AR 055111
DI 10.1088/0022-3727/42/5/055111
PG 5
WC Physics, Applied
SC Physics
GA 410GJ
UT WOS:000263565200029
ER
PT J
AU Perelson, AS
Wiegel, FW
AF Perelson, Alan S.
Wiegel, Frederik W.
TI Scaling aspects of lymphocyte trafficking
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Article
DE Scaling laws; Immunology; Lymphocyte; Immune repertoire; Lymphocyte
trafficking
ID IN-VIVO; METABOLIC-RATE; VIRUS; CELLS; SIZE; RECIRCULATION; REPERTOIRE;
CHEMOKINES; MAMMALS; ANTIGEN
AB We consider the long lived pool of B and T cells that recirculate through blood, tissues and the lymphatic system of an animal with body mass M. We derive scaling rules (allometric relations) for: (1) the rate of production of mature lymphocytes, (2) the accumulation of lymphocytes in the tissues, (3) the flux of lymphocytes through the lymphatic system, (4) the number of lymph nodes, (5) the number of lymphocytes per clone within a lymph node, and (6) the total number of lymphocytes within a lymph node. Mass-dependent aspects of immune learning and of the immunological self are shown to be not very significant. Our treatment is somewhat heuristic and aims at combining immunological data with recent progress in biological scaling. Published by Elsevier Ltd.
C1 [Perelson, Alan S.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Wiegel, Frederik W.] Univ Amsterdam, Inst Theoret Phys, NL-1018 XE Amsterdam, Netherlands.
RP Perelson, AS (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
EM asp@lanl.gov; f.w.wgl@hotniail.com
FU US Department of Energy [DE-AC52-06NA25396]; NIH [AI28433, RR06555];
Human Frontiers Science Program [RPG10/2004]
FX We thank Geoffrey West and Jason Bragg for valuable conversations about
this work. We also thank the reviewers for many helpful comments and
references. J. Bragg also supplied Fig. 1. Much of this work was
inspired by G.I. Bell, a colleague, friend and collaborator for many
years who died in May, 2000. Portions of this work were done under the
auspices of the US Department of Energy under contract DE-AC52-06NA25396
and supported by NIH Grants AI28433 and RR06555. This work was also
facilitated by interactions at the Santa Fe Institute and supported at
the Santa Fe Institute by research Grant RPG10/2004 from the Human
Frontiers Science Program.
NR 46
TC 9
Z9 9
U1 2
U2 5
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-5193
EI 1095-8541
J9 J THEOR BIOL
JI J. Theor. Biol.
PD MAR 7
PY 2009
VL 257
IS 1
BP 9
EP 16
DI 10.1016/j.jtbi.2008.11.007
PG 8
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 414HQ
UT WOS:000263854900002
PM 19084024
ER
PT J
AU Gritti, F
Guiochon, G
AF Gritti, Fabrice
Guiochon, Georges
TI Adsorption mechanism of acids and bases in reversed-phase liquid
chromatography in weak buffered mobile phases designed for liquid
chromatography/mass spectrometry
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE Overloaded band profiles, acids and bases compounds; C(18)
reversed-phase columns; Weak buffer capacity; Nonlinear chromatography;
Competitive adsorption isotherms; Column heterogeneity; Silanol
activity; Silica; pK(a) of the analyte
ID SURFACE HETEROGENEITY; STATIONARY-PHASE; NONLINEAR CHROMATOGRAPHY;
RETENTION MECHANISM; IONIZABLE COMPOUNDS; PERFORMANCE; PH; SIMULATION;
SOLUTES; SOLVENT
AB The overloaded band profiles of five acido-basic compounds were measured, using weakly buffered mobile phases. Low buffer concentrations were selected to provide a better understanding of the band profiles recorded in LC/MS analyses, which are often carried out at low buffer concentrations. In this work, 10 mu L samples of a 50 mM probe solution were injected into C(18)-bonded columns using a series of five buffered mobile phases at (s)(w)pH between 2 and 12. The retention times and the shapes of the bands were analyzed based on thermodynamic arguments. A new adsorption model that takes into account the simultaneous adsorption of the acidic and the basic species onto the endcapped adsorbent, predicts accurately the complex experimental profiles recorded. The adsorption mechanism of acido-basic compounds onto RPLC phases seems to be consistent with the following microscopic model. No matter whether the acid or the base is the neutral or the basic species, the neutral species adsorbs onto a large number of weak adsorption sites (their saturation capacity is several tens g/L and their equilibrium constant of the order of 0.1 L/g). In contrast, the ionic species adsorbs strongly onto fewer active sites (their saturation capacity is about 1 g/L and their equilibrium constant of the order of a few L/g). From a microscopic point of view and in agreement with the adsorption isotherm of the compound measured by frontal analysis (FA) and with the results of Monte-Carlo calculations performed by Schure et al., the first type of adsorption sites are most likely located in between C(18)-bonded chains and the second type of adsorption sites are located deeper in contact with the silica surface. The injected concentration (50 mM) was too low to probe the weakest adsorption sites (saturation capacity of a few hundreds g/L with an equilibrium constant of one hundredth of L/g) that are located at the very interface between the C(18)-bonded layer and the bulk phase. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Gritti, Fabrice; Guiochon, Georges] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Gritti, Fabrice; Guiochon, Georges] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Guiochon, G (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
EM guiochon@utk.edu
FU National Science Foundation [CHE-06-08659]; US Department of Energy
[DE-FG05-88-ER-13869]
FX This work was supported in part by grant CHE-06-08659 of the National
Science Foundation, by Grant DE-FG05-88-ER-13869 of the US Department of
Energy, and by the cooperative agreement between the University of
Tennessee and the Oak Ridge National Laboratory.
NR 41
TC 32
Z9 33
U1 0
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0021-9673
J9 J CHROMATOGR A
JI J. Chromatogr. A
PD MAR 6
PY 2009
VL 1216
IS 10
BP 1776
EP 1788
DI 10.1016/j.chroma.2008.10.064
PG 13
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 416SK
UT WOS:000264025600015
PM 18976999
ER
PT J
AU Aaltonen, T
Adelman, J
Akimoto, T
Gonzalez, BA
Amerio, S
Amidei, D
Anastassov, A
Annovi, A
Antos, J
Apollinari, G
Apresyan, A
Arisawa, T
Artikov, A
Ashmanskas, W
Attal, A
Aurisano, A
Azfar, F
Azzurri, P
Badgett, W
Barbaro-Galtieri, A
Barnes, VE
Barnett, BA
Bartsch, V
Bauer, G
Beauchemin, PH
Bedeschi, F
Beecher, D
Behari, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Beringer, J
Bhatti, A
Binkley, M
Bisello, D
Bizjak, I
Blair, RE
Blocker, C
Blumenfeld, B
Bocci, A
Bodek, A
Boisvert, V
Bolla, G
Bortoletto, D
Boudreau, J
Boveia, A
Brau, B
Bridgeman, A
Brigliadori, L
Bromberg, C
Brubaker, E
Budagov, J
Budd, HS
Budd, S
Burke, S
Burkett, K
Busetto, G
Bussey, P
Buzatu, A
Byrum, KL
Cabrera, S
Calancha, C
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
Choudalakis, G
Chuang, SH
Chung, K
Chung, WH
Chung, YS
Chwalek, T
Ciobanu, CI
Ciocci, MA
Clark, A
Clark, D
Compostella, G
Convery, ME
Conway, J
Cordelli, M
Cortiana, G
Cox, CA
Cox, DJ
Crescioli, F
Almenar, CC
Cuevas, J
Culbertson, R
Cully, JC
Dagenhart, D
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
Derwent, PF
di Giovanni, GP
Dionisi, C
Di Ruzza, B
Dittmann, JR
D'Onofrio, M
Donati, S
Dong, P
Donini, J
Dorigo, T
Dube, S
Efron, J
Elagin, A
Erbacher, R
Errede, D
Errede, S
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
Genser, K
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, K
Hahn, SR
Halkiadakis, E
Han, BY
Han, JY
Happacher, F
Hara, K
Hare, D
Hare, M
Harper, S
Harr, RF
Harris, RM
Hartz, M
Hatakeyama, K
Hays, C
Heck, M
Heijboer, A
Heinrich, J
Henderson, C
Herndon, M
Heuser, J
Hewamanage, S
Hidas, D
Hill, CS
Hirschbuehl, D
Hocker, A
Hou, S
Houlden, M
Hsu, SC
Huffman, BT
Hughes, RE
Husemann, U
Hussein, M
Husemann, U
Huston, J
Incandela, J
Introzzi, G
Iori, M
Ivanov, A
James, E
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
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
Knuteson, B
Ko, BR
Kondo, K
Kong, DJ
Konigsberg, J
Korytov, A
Kotwal, AV
Kreps, M
Kroll, J
Krop, D
Krumnack, N
Kruse, M
Krutelyov, V
Kubo, T
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, SW
Leone, S
Lewis, JD
Lin, CS
Linacre, J
Lindgren, M
Lipeles, E
Lister, A
Litvintsev, DO
Liu, C
Liu, T
Lockyer, NS
Loginov, A
Loreti, M
Lovas, L
Lucchesi, D
Luci, C
Lueck, J
Lujan, P
Lukens, P
Lungu, G
Lyons, L
Lys, J
Lysak, R
MacQueen, D
Madrak, R
Maeshima, K
Makhoul, K
Maki, T
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
Maruyama, T
Mastrandrea, P
Masubuchi, T
Mathis, M
Mattson, ME
Mazzanti, P
McFarland, KS
McIntyre, P
McNulty, R
Mehta, A
Mehtala, P
Menzione, A
Merkel, P
Mesropian, C
Miao, T
Miladinovic, N
Miller, R
Mills, C
Milnik, M
Mitra, A
Mitselmakher, G
Miyake, H
Moggi, N
Moon, CS
Moore, R
Morello, MJ
Morlok, J
Fernandez, PM
Mulmenstadt, J
Mukherjee, A
Muller, T
Mumford, R
Murat, P
Mussini, M
Nachtman, J
Nagai, Y
Nagano, A
Naganoma, J
Nakamura, K
Nakano, I
Napier, A
Necula, V
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
Griso, SP
Palencia, E
Papadimitriou, V
Papaikonomou, A
Paramonov, 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
Poukhov, O
Pounder, N
Prakoshyn, F
Pronko, A
Proudfoot, J
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
Safonov, A
Sakumoto, WK
Salto, O
Santi, L
Sarkar, S
Sartori, L
Sato, K
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
Sidoti, A
Sinervo, P
Sisakyan, A
Slaughter, AJ
Slaunwhite, J
Sliwa, K
Smith, JR
Snider, FD
Snihur, R
Soha, A
Somalwar, S
Sorin, V
Spalding, J
Spreitzer, T
Squillacioti, P
Stanitzki, M
St Denis, R
Stelzer, B
Stelzer-Chilton, O
Stentz, D
Strologas, J
Strycker, GL
Stuart, D
Suh, JS
Sukhanov, A
Suslov, I
Suzuki, T
Taffard, A
Takashima, R
Takeuchi, Y
Tanaka, R
Tecchio, M
Teng, PK
Terashi, K
Thom, J
Thompson, AS
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
Tourneur, S
Trovato, M
Tsai, SY
Tu, Y
Turini, N
Ukegawa, F
Vallecorsa, S
van Remortel, N
Varganov, A
Vataga, E
Vazquez, F
Velev, G
Vellidis, C
Veszpremi, V
Vidal, M
Vidal, R
Vila, I
Vilar, R
Vine, T
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
Wright, T
Wu, X
Wurthwein, F
Wynne, SM
Xie, S
Yagil, A
Yamamoto, K
Yamaoka, J
Yang, UK
Yang, YC
Yao, WM
Yeh, GP
Yoh, J
Yorita, K
Yoshida, T
Yu, GB
Yu, I
Yu, SS
Yun, JC
Zanello, L
Zanetti, A
Zhang, X
Zheng, Y
Zucchelli, S
AF Aaltonen, T.
Adelman, J.
Akimoto, T.
Alvarez Gonzalez, B.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Apresyan, A.
Arisawa, T.
Artikov, A.
Ashmanskas, W.
Attal, A.
Aurisano, A.
Azfar, F.
Azzurri, P.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Bartsch, V.
Bauer, G.
Beauchemin, P. -H.
Bedeschi, F.
Beecher, D.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Beringer, J.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Blair, R. E.
Blocker, C.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Boisvert, V.
Bolla, G.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brau, B.
Bridgeman, A.
Brigliadori, L.
Bromberg, C.
Brubaker, E.
Budagov, J.
Budd, H. S.
Budd, S.
Burke, S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Byrum, K. L.
Cabrera, S.
Calancha, C.
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.
Choudalakis, G.
Chuang, S. H.
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.
Cordelli, M.
Cortiana, G.
Cox, C. A.
Cox, D. J.
Crescioli, F.
Almenar, C. Cuenca
Cuevas, J.
Culbertson, R.
Cully, J. C.
Dagenhart, D.
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.
Derwent, P. F.
di Giovanni, G. P.
Dionisi, C.
Di Ruzza, B.
Dittmann, J. R.
D'Onofrio, M.
Donati, S.
Dong, P.
Donini, J.
Dorigo, T.
Dube, S.
Efron, J.
Elagin, A.
Erbacher, R.
Errede, D.
Errede, S.
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.
Genser, K.
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, K.
Hahn, S. R.
Halkiadakis, E.
Han, B. -Y.
Han, J. Y.
Happacher, F.
Hara, K.
Hare, D.
Hare, M.
Harper, S.
Harr, R. F.
Harris, R. M.
Hartz, M.
Hatakeyama, K.
Hays, C.
Heck, M.
Heijboer, A.
Heinrich, J.
Henderson, C.
Herndon, M.
Heuser, J.
Hewamanage, S.
Hidas, D.
Hill, C. S.
Hirschbuehl, D.
Hocker, A.
Hou, S.
Houlden, M.
Hsu, S. -C.
Huffman, B. T.
Hughes, R. E.
Husemann, U.
Hussein, M.
Husemann, U.
Huston, J.
Incandela, J.
Introzzi, G.
Iori, M.
Ivanov, A.
James, E.
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.
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.
Knuteson, B.
Ko, B. R.
Kondo, K.
Kong, D. J.
Konigsberg, J.
Korytov, A.
Kotwal, A. V.
Kreps, M.
Kroll, J.
Krop, D.
Krumnack, N.
Kruse, M.
Krutelyov, V.
Kubo, T.
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, S. W.
Leone, S.
Lewis, J. D.
Lin, C. -S.
Linacre, J.
Lindgren, M.
Lipeles, E.
Lister, A.
Litvintsev, D. O.
Liu, C.
Liu, T.
Lockyer, N. S.
Loginov, A.
Loreti, M.
Lovas, L.
Lucchesi, D.
Luci, C.
Lueck, J.
Lujan, P.
Lukens, P.
Lungu, G.
Lyons, L.
Lys, J.
Lysak, R.
MacQueen, D.
Madrak, R.
Maeshima, K.
Makhoul, K.
Maki, T.
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.
Maruyama, T.
Mastrandrea, P.
Masubuchi, T.
Mathis, M.
Mattson, M. E.
Mazzanti, P.
McFarland, K. S.
McIntyre, P.
McNulty, R.
Mehta, A.
Mehtala, P.
Menzione, A.
Merkel, P.
Mesropian, C.
Miao, T.
Miladinovic, N.
Miller, R.
Mills, C.
Milnik, M.
Mitra, A.
Mitselmakher, G.
Miyake, H.
Moggi, N.
Moon, C. S.
Moore, R.
Morello, M. J.
Morlok, J.
Fernandez, P. Movilla
Muelmenstaedt, J.
Mukherjee, A.
Muller, Th.
Mumford, R.
Murat, P.
Mussini, M.
Nachtman, J.
Nagai, Y.
Nagano, A.
Naganoma, J.
Nakamura, K.
Nakano, I.
Napier, A.
Necula, V.
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.
Griso, S. Pagan
Palencia, E.
Papadimitriou, V.
Papaikonomou, A.
Paramonov, 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.
Poukhov, O.
Pounder, N.
Prakoshyn, F.
Pronko, A.
Proudfoot, J.
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.
Safonov, A.
Sakumoto, W. K.
Salto, O.
Santi, L.
Sarkar, S.
Sartori, L.
Sato, K.
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.
Sidoti, 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.
Spalding, J.
Spreitzer, T.
Squillacioti, P.
Stanitzki, M.
St. Denis, R.
Stelzer, B.
Stelzer-Chilton, O.
Stentz, D.
Strologas, J.
Strycker, G. L.
Stuart, D.
Suh, J. S.
Sukhanov, A.
Suslov, I.
Suzuki, T.
Taffard, A.
Takashima, R.
Takeuchi, Y.
Tanaka, R.
Tecchio, M.
Teng, P. K.
Terashi, K.
Thom, J.
Thompson, A. S.
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.
Tourneur, S.
Trovato, M.
Tsai, S. -Y.
Tu, Y.
Turini, N.
Ukegawa, F.
Vallecorsa, S.
van Remortel, N.
Varganov, A.
Vataga, E.
Vazquez, F.
Velev, G.
Vellidis, C.
Veszpremi, V.
Vidal, M.
Vidal, R.
Vila, I.
Vilar, R.
Vine, T.
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.
Wright, T.
Wu, X.
Wuerthwein, F.
Wynne, S. M.
Xie, S.
Yagil, A.
Yamamoto, K.
Yamaoka, J.
Yang, U. K.
Yang, Y. C.
Yao, W. M.
Yeh, G. P.
Yoh, J.
Yorita, K.
Yoshida, T.
Yu, G. B.
Yu, I.
Yu, S. S.
Yun, J. C.
Zanello, L.
Zanetti, A.
Zhang, X.
Zheng, Y.
Zucchelli, S.
CA CDF Collaboration
TI Search for High-Mass Resonances Decaying to Dimuons at CDF
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HADRON COLLIDERS; HIERARCHY; PHENOMENOLOGY; VIOLATION; PARITY; MODELS
AB We present a search for high-mass neutral resonances using dimuon data corresponding to an integrated luminosity of 2.3 fb(-1) collected in pp collisions at s=1.96 TeV by the CDF II detector at the Fermilab Tevatron. No significant excess above the standard model expectation is observed in the dimuon invariant-mass spectrum. We set 95% confidence level upper limits on sigma BR(pp -> X ->mu mu), where X is a boson with spin-0, 1, or 2. Using these cross section limits, we determine lower mass limits on sneutrinos in R-parity-violating supersymmetric models, Z(') bosons, and Kaluza-Klein gravitons in the Randall-Sundrum model.
C1 [Chen, Y. C.; Hou, S.; Mitra, A.; Teng, P. K.; Tsai, S. -Y.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
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[Attal, A.; Cavalli-Sforza, M.; De Lorenzo, G.; Deluca, C.; D'Onofrio, M.; Martinez, M.; Salto, O.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain.
[Dittmann, J. R.; Frank, M. J.; Hewamanage, S.; Krumnack, N.] Baylor Univ, Waco, TX 76798 USA.
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[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.; Almenar, C. Cuenca; Erbacher, R.; Forrest, R.; Ivanov, A.; Johnson, W.; Lander, R. L.; Lister, A.; Pellett, D. E.; Schwarz, T.; Smith, J. R.; Soha, A.] Univ Calif Davis, Davis, CA 95616 USA.
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RP Aaltonen, T (reprint author), Acad Sinica, Inst Phys, Taipei 11529, Taiwan.
RI Introzzi, Gianluca/K-2497-2015; Gorelov, Igor/J-9010-2015; Xie,
Si/O-6830-2016; Canelli, Florencia/O-9693-2016; Chiarelli,
Giorgio/E-8953-2012; 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; Cabrera Urban,
Susana/H-1376-2015; Garcia, Jose /H-6339-2015; ciocci, maria agnese
/I-2153-2015; Cavalli-Sforza, Matteo/H-7102-2015; Muelmenstaedt,
Johannes/K-2432-2015; St.Denis, Richard/C-8997-2012; Lysak,
Roman/H-2995-2014; Ivanov, Andrew/A-7982-2013; Ruiz,
Alberto/E-4473-2011; Punzi, Giovanni/J-4947-2012; manca,
giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Annovi,
Alberto/G-6028-2012; Robson, Aidan/G-1087-2011; De Cecco,
Sandro/B-1016-2012; Warburton, Andreas/N-8028-2013; Kim,
Soo-Bong/B-7061-2014;
OI Introzzi, Gianluca/0000-0002-1314-2580; Gorelov,
Igor/0000-0001-5570-0133; Xie, Si/0000-0003-2509-5731; Canelli,
Florencia/0000-0001-6361-2117; Chiarelli, Giorgio/0000-0001-9851-4816;
Giordani, Mario/0000-0002-0792-6039; Casarsa,
Massimo/0000-0002-1353-8964; 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; Muelmenstaedt, Johannes/0000-0003-1105-6678;
Ivanov, Andrew/0000-0002-9270-5643; Ruiz, Alberto/0000-0002-3639-0368;
Punzi, Giovanni/0000-0002-8346-9052; Annovi,
Alberto/0000-0002-4649-4398; Warburton, Andreas/0000-0002-2298-7315;
Latino, Giuseppe/0000-0002-4098-3502; iori,
maurizio/0000-0002-6349-0380; Lancaster, Mark/0000-0002-8872-7292;
Gallinaro, Michele/0000-0003-1261-2277; Turini,
Nicola/0000-0002-9395-5230; Osterberg, Kenneth/0000-0003-4807-0414
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; Korean Science and
Engineering Foundation; Korean Research Foundation; Science and
Technology Facilities Council; Royal Society, U.K.; 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 Korean Science and Engineering
Foundation and the Korean Research Foundation; the Science and
Technology Facilities Council and the Royal Society, U.K.; the Institut
National de Physique Nucleaire et Physique des Particules/CNRS; the
Russian Foundation for Basic Research; the Ministerio de Ciencia e
Innovacion, Spain; the Slovak R&D Agency; and the Academy of Finland.
NR 42
TC 78
Z9 78
U1 5
U2 18
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 MAR 6
PY 2009
VL 102
IS 9
AR 091805
DI 10.1103/PhysRevLett.102.091805
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900012
PM 19392510
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Aguilo, E
Ahn, SH
Ahsan, M
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Anastasoaie, M
Ancu, LS
Andeen, T
Anderson, S
Andrieu, B
Anzelc, MS
Aoki, M
Arnoud, Y
Arov, M
Arthaud, M
Askew, A
Asman, B
Jesus, ACSA
Atramentov, O
Avila, C
Badaud, F
Baden, A
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, P
Banerjee, S
Barberis, E
Barfuss, AF
Bargassa, P
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Bauer, D
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Bellavance, A
Benitez, JA
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Biscarat, C
Blazey, G
Blekman, F
Blessing, S
Bloch, D
Bloom, K
Boehnlein, A
Boline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brock, R
Brooijmans, G
Bross, A
Brown, D
Buchanan, NJ
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burke, S
Burnett, TH
Buszello, CP
Butler, JM
Calfayan, P
Calvet, S
Cammin, J
Carvalho, W
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, K
Chan, KM
Chandra, A
Charles, F
Cheu, E
Chevallier, F
Cho, DK
Choi, S
Choudhary, B
Christofek, L
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Crepe-Renaudin, S
Cutts, D
Cwiok, M
da Motta, H
Das, A
Davies, G
De, K
de Jong, SJ
De la Cruz-Burelo, E
Martins, CD
Degenhardt, JD
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
Diehl, HT
Diesburg, M
Dominguez, A
Dong, H
Dudko, LV
Duflot, L
Dugad, SR
Duggan, D
Duperrin, A
Dyer, J
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Ermolov, P
Evans, H
Evdokimov, A
Evdokimov, VN
Ferapontov, AV
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fu, S
Fuess, S
Gadfort, T
Galea, CF
Gallas, E
Garcia, C
Garcia-Bellido, A
Gavrilov, V
Gay, P
Geist, W
Gele, D
Gerber, CE
Gershtein, Y
Gillberg, D
Ginther, G
Gollub, N
Gomez, B
Goussiou, A
Grannis, PD
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, P
Haas, A
Hadley, NJ
Haefner, P
Hagopian, S
Haley, J
Hall, I
Hall, RE
Han, L
Harder, K
Harel, A
Hauptman, JM
Hauser, R
Hays, J
Hebbeker, T
Hedin, D
Hegeman, JG
Heinson, AP
Heintz, U
Hensel, C
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hobbs, JD
Hoeneisen, B
Hoeth, H
Hohlfeld, M
Hong, SJ
Hossain, S
Houben, P
Hu, Y
Hubacek, Z
Hynek, V
Iashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jakobs, K
Jarvis, C
Jesik, R
Johns, K
Johnson, C
Johnson, M
Jonckheere, A
Jonsson, P
Juste, A
Kajfasz, E
Kalk, JM
Karmanov, D
Kasper, PA
Katsanos, I
Kau, D
Kaushik, V
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YM
Khatidze, D
Kim, TJ
Kirby, MH
Kirsch, M
Klima, B
Kohli, JM
Konrath, JP
Kozelov, AV
Kraus, J
Krop, D
Kuhl, T
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lacroix, F
Lam, D
Lammers, S
Landsberg, G
Lebrun, P
Lee, WM
Leflat, A
Lellouch, J
Leveque, J
Li, J
Li, L
Li, QZ
Lietti, SM
Lima, JGR
Lincoln, D
Linnemann, J
Lipaev, VV
Lipton, R
Liu, Y
Liu, Z
Lobodenko, A
Lokajicek, M
Love, P
Lubatti, HJ
Luna, R
Lyon, AL
Maciel, AKA
Mackin, D
Madaras, RJ
Mattig, P
Magass, C
Magerkurth, A
Mal, PK
Malbouisson, HB
Malik, S
Malyshev, VL
Mao, HS
Maravin, Y
Martin, B
McCarthy, R
Melnitchouk, A
Mendoza, L
Mercadante, PG
Merkin, M
Merritt, KW
Meyer, A
Meyer, J
Millet, T
Mitrevski, J
Mommsen, RK
Mondal, NK
Moore, RW
Moulik, T
Muanza, GS
Mulhearn, M
Mundal, O
Mundim, L
Nagy, E
Naimuddin, M
Narain, M
Naumann, NA
Neal, HA
Negret, JP
Neustroev, P
Nilsen, H
Nogima, H
Novaes, SF
Nunnemann, T
O'Dell, V
O'Neil, DC
Obrant, G
Ochando, C
Onoprienko, D
Oshima, N
Osman, N
Osta, J
Otec, R
Garzon, GJOY
Owen, M
Padley, P
Pangilinan, M
Parashar, N
Park, SJ
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Pawloski, G
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petroff, P
Petteni, M
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pogorelov, Y
Pol, ME
Polozov, P
Pope, BG
Popov, AV
Potter, C
da Silva, WLP
Prosper, HB
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rakitine, A
Rangel, MS
Ranjan, K
Ratoff, PN
Renkel, P
Reucroft, S
Rich, P
Rieger, J
Rijssenbeek, M
Ripp-Baudot, I
Rizatdinova, F
Robinson, S
Rodrigues, RF
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Sanghi, B
Santoro, A
Savage, G
Sawyer, L
Scanlon, T
Schaile, D
Schamberger, RD
Scheglov, Y
Schellman, H
Schliephake, T
Schwanenberger, C
Schwartzman, A
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shamim, M
Shary, V
Shchukin, AA
Shivpuri, RK
Siccardi, V
Simak, V
Sirotenko, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Sopczak, A
Sosebee, M
Soustruznik, K
Spurlock, B
Stark, J
Steele, J
Stolin, V
Stoyanova, DA
Strandberg, J
Strandberg, S
Strang, MA
Strauss, E
Strauss, M
Strohmer, R
Strom, D
Stutte, L
Sumowidagdo, S
Svoisky, P
Sznajder, A
Tamburello, P
Tanasijczuk, A
Taylor, W
Temple, J
Tiller, B
Tissandier, F
Titov, M
Tokmenin, VV
Toole, T
Torchiani, I
Trefzger, T
Tsybychev, D
Tuchming, B
Tully, C
Tuts, PM
Unalan, R
Uvarov, L
Uvarov, S
Uzunyan, S
Vachon, B
van den Berg, PJ
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Vaupel, M
Verdier, P
Vertogradov, LS
Verzocchi, M
Villeneuve-Seguier, F
Vint, P
Vokac, P
Von Toerne, E
Voutilainen, M
Wagner, R
Wahl, HD
Wang, L
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weber, G
Weber, M
Welty-Rieger, L
Wenger, A
Wermes, N
Wetstein, M
White, A
Wicke, D
Wilson, GW
Wimpenny, SJ
Wobisch, M
Wood, DR
Wyatt, TR
Xie, Y
Yacoob, S
Yamada, R
Yan, M
Yasuda, T
Yatsunenko, YA
Yip, K
Yoo, HD
Youn, SW
Yu, J
Zeitnitz, C
Zhao, T
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zieminski, A
Zivkovic, L
Zutshi, V
Zverev, EG
AF Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahn, S. H.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Anastasoaie, M.
Ancu, L. S.
Andeen, T.
Anderson, S.
Andrieu, B.
Anzelc, M. S.
Aoki, M.
Arnoud, Y.
Arov, M.
Arthaud, M.
Askew, A.
Asman, B.
Assis Jesus, A. C. S.
Atramentov, O.
Avila, C.
Badaud, F.
Baden, A.
Bagby, L.
Baldin, B.
Bandurin, D. V.
Banerjee, P.
Banerjee, S.
Barberis, E.
Barfuss, A. -F.
Bargassa, P.
Baringer, P.
Barreto, J.
Bartlett, J. F.
Bassler, U.
Bauer, D.
Beale, S.
Bean, A.
Begalli, M.
Begel, M.
Belanger-Champagne, C.
Bellantoni, L.
Bellavance, A.
Benitez, J. A.
Beri, S. B.
Bernardi, G.
Bernhard, R.
Bertram, I.
Besancon, M.
Beuselinck, R.
Bezzubov, V. A.
Bhat, P. C.
Bhatnagar, V.
Biscarat, C.
Blazey, G.
Blekman, F.
Blessing, S.
Bloch, D.
Bloom, K.
Boehnlein, A.
Boline, D.
Bolton, T. A.
Boos, E. E.
Borissov, G.
Bose, T.
Brandt, A.
Brock, R.
Brooijmans, G.
Bross, A.
Brown, D.
Buchanan, N. J.
Buchholz, D.
Buehler, M.
Buescher, V.
Bunichev, V.
Burdin, S.
Burke, S.
Burnett, T. H.
Buszello, C. P.
Butler, J. M.
Calfayan, P.
Calvet, S.
Cammin, J.
Carvalho, W.
Casey, B. C. K.
Castilla-Valdez, H.
Chakrabarti, S.
Chakraborty, D.
Chan, K.
Chan, K. M.
Chandra, A.
Charles, F.
Cheu, E.
Chevallier, F.
Cho, D. K.
Choi, S.
Choudhary, B.
Christofek, L.
Christoudias, T.
Cihangir, S.
Claes, D.
Clutter, J.
Cooke, M.
Cooper, W. E.
Corcoran, M.
Couderc, F.
Cousinou, M. -C.
Crepe-Renaudin, S.
Cutts, D.
Cwiok, M.
da Motta, H.
Das, A.
Davies, G.
De, K.
de Jong, S. J.
De la Cruz-Burelo, E.
Martins, C. De Oliveira
Degenhardt, J. D.
Deliot, F.
Demarteau, M.
Demina, R.
Denisov, D.
Denisov, S. P.
Desai, S.
Diehl, H. T.
Diesburg, M.
Dominguez, A.
Dong, H.
Dudko, L. V.
Duflot, L.
Dugad, S. R.
Duggan, D.
Duperrin, A.
Dyer, J.
Dyshkant, A.
Eads, M.
Edmunds, D.
Ellison, J.
Elvira, V. D.
Enari, Y.
Eno, S.
Ermolov, P.
Evans, H.
Evdokimov, A.
Evdokimov, V. N.
Ferapontov, A. V.
Ferbel, T.
Fiedler, F.
Filthaut, F.
Fisher, W.
Fisk, H. E.
Fortner, M.
Fox, H.
Fu, S.
Fuess, S.
Gadfort, T.
Galea, C. F.
Gallas, E.
Garcia, C.
Garcia-Bellido, A.
Gavrilov, V.
Gay, P.
Geist, W.
Gele, D.
Gerber, C. E.
Gershtein, Y.
Gillberg, D.
Ginther, G.
Gollub, N.
Gomez, B.
Goussiou, A.
Grannis, P. D.
Greenlee, H.
Greenwood, Z. D.
Gregores, E. M.
Grenier, G.
Gris, Ph.
Grivaz, J. -F.
Grohsjean, A.
Gruenendahl, S.
Gruenewald, M. W.
Guo, F.
Guo, J.
Gutierrez, G.
Gutierrez, P.
Haas, A.
Hadley, N. J.
Haefner, P.
Hagopian, S.
Haley, J.
Hall, I.
Hall, R. E.
Han, L.
Harder, K.
Harel, A.
Hauptman, J. M.
Hauser, R.
Hays, J.
Hebbeker, T.
Hedin, D.
Hegeman, J. G.
Heinson, A. P.
Heintz, U.
Hensel, C.
Herner, K.
Hesketh, G.
Hildreth, M. D.
Hirosky, R.
Hobbs, J. D.
Hoeneisen, B.
Hoeth, H.
Hohlfeld, M.
Hong, S. J.
Hossain, S.
Houben, P.
Hu, Y.
Hubacek, Z.
Hynek, V.
Iashvili, I.
Illingworth, R.
Ito, A. S.
Jabeen, S.
Jaffre, M.
Jain, S.
Jakobs, K.
Jarvis, C.
Jesik, R.
Johns, K.
Johnson, C.
Johnson, M.
Jonckheere, A.
Jonsson, P.
Juste, A.
Kajfasz, E.
Kalk, J. M.
Karmanov, D.
Kasper, P. A.
Katsanos, I.
Kau, D.
Kaushik, V.
Kehoe, R.
Kermiche, S.
Khalatyan, N.
Khanov, A.
Kharchilava, A.
Kharzheev, Y. M.
Khatidze, D.
Kim, T. J.
Kirby, M. H.
Kirsch, M.
Klima, B.
Kohli, J. M.
Konrath, J. -P.
Kozelov, A. V.
Kraus, J.
Krop, D.
Kuhl, T.
Kumar, A.
Kupco, A.
Kurca, T.
Kuzmin, V. A.
Kvita, J.
Lacroix, F.
Lam, D.
Lammers, S.
Landsberg, G.
Lebrun, P.
Lee, W. M.
Leflat, A.
Lellouch, J.
Leveque, J.
Li, J.
Li, L.
Li, Q. Z.
Lietti, S. M.
Lima, J. G. R.
Lincoln, D.
Linnemann, J.
Lipaev, V. V.
Lipton, R.
Liu, Y.
Liu, Z.
Lobodenko, A.
Lokajicek, M.
Love, P.
Lubatti, H. J.
Luna, R.
Lyon, A. L.
Maciel, A. K. A.
Mackin, D.
Madaras, R. J.
Maettig, P.
Magass, C.
Magerkurth, A.
Mal, P. K.
Malbouisson, H. B.
Malik, S.
Malyshev, V. L.
Mao, H. S.
Maravin, Y.
Martin, B.
McCarthy, R.
Melnitchouk, A.
Mendoza, L.
Mercadante, P. G.
Merkin, M.
Merritt, K. W.
Meyer, A.
Meyer, J.
Millet, T.
Mitrevski, J.
Mommsen, R. K.
Mondal, N. K.
Moore, R. W.
Moulik, T.
Muanza, G. S.
Mulhearn, M.
Mundal, O.
Mundim, L.
Nagy, E.
Naimuddin, M.
Narain, M.
Naumann, N. A.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nilsen, H.
Nogima, H.
Novaes, S. F.
Nunnemann, T.
O'Dell, V.
O'Neil, D. C.
Obrant, G.
Ochando, C.
Onoprienko, D.
Oshima, N.
Osman, N.
Osta, J.
Otec, R.
Otero y Garzon, G. J.
Owen, M.
Padley, P.
Pangilinan, M.
Parashar, N.
Park, S. -J.
Park, S. K.
Parsons, J.
Partridge, R.
Parua, N.
Patwa, A.
Pawloski, G.
Penning, B.
Perfilov, M.
Peters, K.
Peters, Y.
Petroff, P.
Petteni, M.
Piegaia, R.
Piper, J.
Pleier, M. -A.
Podesta-Lerma, P. L. M.
Podstavkov, V. M.
Pogorelov, Y.
Pol, M. -E.
Polozov, P.
Pope, B. G.
Popov, A. V.
Potter, C.
Prado da Silva, W. L.
Prosper, H. B.
Protopopescu, S.
Qian, J.
Quadt, A.
Quinn, B.
Rakitine, A.
Rangel, M. S.
Ranjan, K.
Ratoff, P. N.
Renkel, P.
Reucroft, S.
Rich, P.
Rieger, J.
Rijssenbeek, M.
Ripp-Baudot, I.
Rizatdinova, F.
Robinson, S.
Rodrigues, R. F.
Rominsky, M.
Royon, C.
Rubinov, P.
Ruchti, R.
Safronov, G.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Sanghi, B.
Santoro, A.
Savage, G.
Sawyer, L.
Scanlon, T.
Schaile, D.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schliephake, T.
Schwanenberger, C.
Schwartzman, A.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shamim, M.
Shary, V.
Shchukin, A. A.
Shivpuri, R. K.
Siccardi, V.
Simak, V.
Sirotenko, V.
Skubic, P.
Slattery, P.
Smirnov, D.
Snow, G. R.
Snow, J.
Snyder, S.
Soeldner-Rembold, S.
Sonnenschein, L.
Sopczak, A.
Sosebee, M.
Soustruznik, K.
Spurlock, B.
Stark, J.
Steele, J.
Stolin, V.
Stoyanova, D. A.
Strandberg, J.
Strandberg, S.
Strang, M. A.
Strauss, E.
Strauss, M.
Stroehmer, R.
Strom, D.
Stutte, L.
Sumowidagdo, S.
Svoisky, P.
Sznajder, A.
Tamburello, P.
Tanasijczuk, A.
Taylor, W.
Temple, J.
Tiller, B.
Tissandier, F.
Titov, M.
Tokmenin, V. V.
Toole, T.
Torchiani, I.
Trefzger, T.
Tsybychev, D.
Tuchming, B.
Tully, C.
Tuts, P. M.
Unalan, R.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Vachon, B.
van den Berg, P. J.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Vaupel, M.
Verdier, P.
Vertogradov, L. S.
Verzocchi, M.
Villeneuve-Seguier, F.
Vint, P.
Vokac, P.
Von Toerne, E.
Voutilainen, M.
Wagner, R.
Wahl, H. D.
Wang, L.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weber, G.
Weber, M.
Welty-Rieger, L.
Wenger, A.
Wermes, N.
Wetstein, M.
White, A.
Wicke, D.
Wilson, G. W.
Wimpenny, S. J.
Wobisch, M.
Wood, D. R.
Wyatt, T. R.
Xie, Y.
Yacoob, S.
Yamada, R.
Yan, M.
Yasuda, T.
Yatsunenko, Y. A.
Yip, K.
Yoo, H. D.
Youn, S. W.
Yu, J.
Zeitnitz, C.
Zhao, T.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zieminski, A.
Zivkovic, L.
Zutshi, V.
Zverev, E. G.
CA DO Collaboration
TI Measurement of the Lifetime of the B-c(+/-) Meson in the Semileptonic
Decay Channel
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DETECTOR; PHYSICS
AB Using approximately 1.3 fb(-1) of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the B-c(+/-) meson in the B-c(+/-)-> J/psi mu(+/-)+X final state. A simultaneous unbinned likelihood fit to the J/psi+mu invariant mass and lifetime distributions yields a signal of 881 +/- 80(stat) candidates and a lifetime measurement of tau(B-c(+/-))=0.448(-0.036)(+0.038)(stat)+/- 0.032(syst) ps.
C1 [Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina.
[Alves, G. A.; Barreto, J.; da Motta, H.; Maciel, A. K. A.; Pol, M. -E.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil.
[Assis Jesus, A. C. S.; Begalli, M.; Carvalho, W.; Martins, C. De Oliveira; Luna, R.; Malbouisson, H. B.; Mundim, L.; Nogima, H.; Prado da Silva, W. L.; Rodrigues, R. F.; Santoro, A.; Sznajder, A.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil.
[Lietti, S. M.; Mercadante, P. G.; Novaes, S. F.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil.
[Aguilo, E.; Beale, S.; Chan, K.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] Univ Alberta, Edmonton, AB, Canada.
[Han, L.; Liu, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Avila, C.; Gomez, B.; Mendoza, L.; Negret, J. P.] Univ Los Andes, Bogota, Colombia.
[Hynek, V.; Kvita, J.; Soustruznik, K.] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic.
[Hubacek, Z.; Otec, R.; 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, Ecuador.
[Badaud, F.; Gay, P.; Gris, Ph.; Lacroix, F.; Tissandier, F.] Univ Clermont Ferrand, LPC, CNRS, IN2P3, Clermont, France.
[Arnoud, Y.; Chevallier, F.; Crepe-Renaudin, S.; Martin, B.; Sajot, G.; Stark, J.] Univ Grenoble 1, CNRS, IN2P3, Inst Natl Polytech Grenoble,LPSC, Grenoble, France.
[Barfuss, A. -F.; Cousinou, M. -C.; Duperrin, A.; Kajfasz, E.; Kermiche, S.; Nagy, E.] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.
[Calvet, S.; Duflot, L.; Grivaz, J. -F.; Jaffre, M.; Ochando, C.; Petroff, P.] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France.
[Andrieu, B.; Bernardi, G.; Lellouch, J.; Sanders, M. P.; Sonnenschein, L.] Univ Paris 06, CNRS, LPNHE, IN2P3, Paris, France.
[Arthaud, M.; Bassler, U.; Besancon, M.; Chakrabarti, S.; Couderc, F.; Deliot, F.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.] CEA, Serv Phys Particules, DAPNIA, Saclay, France.
[Bloch, D.; Charles, F.; Geist, W.; Gele, D.; Ripp-Baudot, I.; Siccardi, V.] Univ Strasbourg, IPHC, Strasbourg, France.
[Biscarat, C.; Grenier, G.; Kurca, T.; Lebrun, P.; Millet, T.; Muanza, G. S.; Verdier, P.] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France.
[Hebbeker, T.; Kirsch, M.; Magass, C.; Meyer, A.] Rhein Westfal TH Aachen, Phys Inst A III, Aachen, Germany.
[Buescher, V.; Hensel, C.; Hohlfeld, M.; Meyer, J.; Mundal, O.; Park, S. -J.; Pleier, M. -A.; Quadt, A.; Wermes, N.] Univ Bonn, Inst Phys, D-5300 Bonn, Germany.
[Bernhard, R.; Jakobs, K.; Konrath, J. -P.; Nilsen, H.; Penning, B.; Torchiani, I.; Wenger, A.] Univ Freiburg, Inst Phys, Freiburg, Germany.
[Fiedler, F.; Kuhl, T.; Trefzger, T.; Weber, G.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany.
[Calfayan, P.; Grohsjean, A.; Haefner, P.; Nunnemann, T.; Schaile, D.; Stroehmer, R.; Tiller, B.] Univ Munich, Munich, Germany.
[Hoeth, H.; Maettig, P.; Peters, Y.; Schliephake, T.; Vaupel, M.; Wicke, D.; Zeitnitz, C.] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany.
[Beri, S. B.; Bhatnagar, V.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India.
[Choudhary, B.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Acharya, B. S.; Banerjee, P.; Banerjee, S.; Dugad, S. R.; Mondal, N. K.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India.
[Cwiok, M.; Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland.
[Ahn, S. H.; Hong, S. J.; Kim, T. J.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea.
[Choi, S.] Sungkyunkwan Univ, Suwon, South Korea.
[Castilla-Valdez, H.; Podesta-Lerma, P. L. M.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[Hegeman, J. G.; Houben, P.; van den Berg, P. J.; van Leeuwen, W. M.] NIKHEF, FOM Inst, Amsterdam, Netherlands.
[Anastasoaie, M.; Ancu, L. S.; de Jong, S. J.; Filthaut, F.; Galea, C. F.; Naumann, N. A.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands.
[Abazov, V. M.; Alexeev, G. D.; Kharzheev, Y. M.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
[Gavrilov, V.; Polozov, P.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Boos, E. E.; Bunichev, V.; Dudko, L. V.; Ermolov, P.; Karmanov, D.; Kuzmin, V. A.; Leflat, A.; Merkin, M.; Perfilov, M.; Zverev, E. G.] 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.; 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.; Gollub, N.; Strandberg, S.] Lund Univ, Lund, Sweden.
[Anderson, S.; Burke, S.; Cheu, E.; Das, A.; Johns, K.; Leveque, J.; Tamburello, P.; Temple, J.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
[Madaras, R. J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Hall, R. E.] Calif State Univ Fresno, Fresno, CA 93740 USA.
[Chandra, A.; Ellison, J.; Heinson, A. P.; Li, L.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Adams, T.; Askew, A.; Atramentov, O.; Blessing, S.; Buchanan, N. J.; Duggan, D.; Gershtein, Y.; Hagopian, S.; Kau, D.; Prosper, H. B.; Sekaric, J.; Sumowidagdo, S.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bellavance, A.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Casey, B. C. K.; Cihangir, S.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisher, W.; Fisk, H. E.; Fu, S.; Fuess, S.; Gallas, E.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Klima, B.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Mao, H. S.; Merritt, K. W.; Naimuddin, M.; O'Dell, V.; Oshima, N.; Otero y Garzon, G. J.; Podstavkov, V. M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Wang, M. H. L. S.; Weber, M.; Yamada, R.; Yasuda, T.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Gerber, C. E.; Shabalina, E.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Lima, J. G. R.; Uzunyan, S.; Zutshi, V.] No Illinois Univ, De Kalb, IL 60115 USA.
[Andeen, T.; Anzelc, M. S.; Buchholz, D.; Kirby, M. H.; Schellman, H.; Strom, D.; Yacoob, S.; Youn, S. W.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Krop, D.; Parua, N.; Rieger, J.; Van Kooten, R.; Welty-Rieger, L.; Zieminska, D.; Zieminski, A.] Indiana Univ, Bloomington, IN 47405 USA.
[Chan, K. M.; Hildreth, M. D.; Lam, D.; Osta, J.; Pogorelov, Y.; Ruchti, R.; Smirnov, D.; Svoisky, P.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Hauptman, J. M.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Clutter, J.; Moulik, T.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Ahsan, M.; Bandurin, D. V.; Bolton, T. A.; Ferapontov, A. V.; Maravin, Y.; Onoprienko, D.; Shamim, M.; Von Toerne, E.] Kansas State Univ, Manhattan, KS 66506 USA.
[Arov, M.; Greenwood, Z. D.; Kalk, J. M.; Sawyer, L.; Steele, J.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA.
[Baden, A.; Eno, S.; Hadley, N. J.; Jarvis, C.; Toole, T.; Wang, L.; Wetstein, M.; Yan, M.] Univ Maryland, College Pk, MD 20742 USA.
[Boline, D.; Butler, J. M.; Cho, D. K.; Heintz, U.; Jabeen, S.] Boston Univ, Boston, MA 02215 USA.
[Alverson, G.; Barberis, E.; Hesketh, G.; Reucroft, S.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; De la Cruz-Burelo, E.; Degenhardt, J. D.; Magerkurth, A.; Neal, H. A.; Qian, J.; Strandberg, J.; Zhou, B.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Abolins, M.; Benitez, J. A.; Brock, R.; Dyer, J.; Edmunds, D.; Hall, I.; Hauser, R.; Kraus, J.; Linnemann, J.; Piper, J.; Pope, B. G.; Schwienhorst, R.; Unalan, R.] Michigan State Univ, E Lansing, MI 48824 USA.
[Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA.
[Bloom, K.; Claes, D.; Dominguez, A.; Eads, M.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA.
[Haley, J.; Schwartzman, A.; Tully, C.; Voutilainen, M.; Wagner, R.] Princeton Univ, Princeton, NJ 08544 USA.
[Iashvili, I.; Kharchilava, A.; Kumar, A.; Strang, M. A.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Gadfort, T.; Haas, A.; Johnson, C.; Katsanos, I.; Khatidze, D.; Lammers, S.; Mitrevski, J.; Mulhearn, M.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Cammin, J.; Demina, R.; Ferbel, T.; Garcia, C.; Ginther, G.; Harel, A.; Slattery, P.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Dong, H.; Grannis, P. D.; Guo, F.; Guo, J.; Herner, K.; Hobbs, J. D.; Hu, Y.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.; Zhu, J.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Patwa, 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.; Jain, S.; Rominsky, M.; Severini, H.; Skubic, P.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA.
[Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Bose, T.; Christofek, L.; Cutts, D.; Enari, Y.; Landsberg, G.; Narain, M.; Pangilinan, M.; Partridge, R.; Xie, Y.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Kaushik, V.; Li, J.; 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.
[Bargassa, P.; Cooke, M.; Corcoran, M.; Mackin, D.; Padley, P.; Pawloski, G.] Rice Univ, Houston, TX 77005 USA.
[Brown, D.; Buehler, M.; Hirosky, R.] Univ Virginia, Charlottesville, VA 22901 USA.
[Burnett, T. H.; Garcia-Bellido, A.; Goussiou, A.; Lubatti, H. J.; Mal, P. K.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
[Aguilo, E.; Beale, S.; Chan, K.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada.
[Aguilo, E.; Beale, S.; Chan, K.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] York Univ, Toronto, ON M3J 2R7, Canada.
[Aguilo, E.; Beale, S.; Chan, K.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] McGill Univ, Montreal, PQ, Canada.
[Andrieu, B.; Bernardi, G.; Lellouch, J.; Sanders, M. P.; Sonnenschein, L.] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France.
[Bloch, D.; Charles, F.; Geist, W.; Gele, D.; Ripp-Baudot, I.; Siccardi, V.] Univ Haute Alsace, CNRS, IN2P3, Strasbourg, France.
[Biscarat, C.; Grenier, G.; Kurca, T.; Lebrun, P.; Millet, T.; Muanza, G. S.; Verdier, P.] Univ Lyon, Lyon, France.
[Hegeman, J. G.; Houben, P.; van den Berg, P. J.; van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands.
[Asman, B.; Belanger-Champagne, C.; Gollub, N.; Strandberg, S.] Royal Inst Technol, Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Gollub, N.; Strandberg, S.] Stockholm Univ, S-10691 Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Gollub, N.; Strandberg, S.] Uppsala Univ, Uppsala, Sweden.
[Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Rakitine, A.; Ratoff, P. N.; Sopczak, A.] Univ Lancaster, Lancaster, England.
[Bauer, D.; Beuselinck, R.; Blekman, F.; Buszello, C. P.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Osman, N.; Petteni, M.; Robinson, S.; Scanlon, T.; Villeneuve-Seguier, F.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Harder, K.; Mommsen, R. K.; Owen, M.; Peters, K.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Wyatt, T. R.] Univ Manchester, Manchester, Lancs, England.
[Madaras, R. J.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Abazov, VM (reprint author), Univ Buenos Aires, Buenos Aires, DF, Argentina.
RI Guo, Jun/O-5202-2015; Sznajder, Andre/L-1621-2016; Li,
Liang/O-1107-2015; Bargassa, Pedrame/O-2417-2016; Fisher,
Wade/N-4491-2013; De, Kaushik/N-1953-2013; Ancu, Lucian
Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Santoro,
Alberto/E-7932-2014; 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; KIM, Tae Jeong/P-7848-2015; Boos,
Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Mundim,
Luiz/A-1291-2012; Merkin, Mikhail/D-6809-2012; Leflat,
Alexander/D-7284-2012; Dudko, Lev/D-7127-2012; Perfilov,
Maxim/E-1064-2012; Shivpuri, R K/A-5848-2010; Gutierrez,
Phillip/C-1161-2011; Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013
OI Guo, Jun/0000-0001-8125-9433; Sznajder, Andre/0000-0001-6998-1108; Li,
Liang/0000-0001-6411-6107; Bean, Alice/0000-0001-5967-8674; Bargassa,
Pedrame/0000-0001-8612-3332; 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; KIM, Tae Jeong/0000-0001-8336-2434;
Novaes, Sergio/0000-0003-0471-8549; Mundim, Luiz/0000-0001-9964-7805;
Dudko, Lev/0000-0002-4462-3192; Yip, Kin/0000-0002-8576-4311
FU 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 (
United Kingdom); MSMT and GACR ( Czech Republic); CRC Program, CFI,
NSERC and WestGrid Project ( Canada); BMBF and DFG ( Germany); SFI (
Ireland); The Swedish Research Council ( Sweden); CAS and CNSF ( China);
Alexander von Humboldt Foundation
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 ( United Kingdom); MSMT and
GACR ( Czech Republic); CRC Program, CFI, NSERC and WestGrid Project (
Canada); BMBF and DFG ( Germany); SFI ( Ireland); The Swedish Research
Council ( Sweden); CAS and CNSF ( China); and the Alexander von Humboldt
Foundation.
NR 17
TC 35
Z9 35
U1 0
U2 4
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 MAR 6
PY 2009
VL 102
IS 9
AR 092001
DI 10.1103/PhysRevLett.102.092001
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900014
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Aguilo, E
Ahsan, M
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Anastasoaie, M
Ancu, LS
Andeen, T
Andrieu, B
Anzelc, MS
Aoki, M
Arnoud, Y
Arov, M
Arthaud, M
Askew, A
Asman, B
Jesus, ACSA
Atramentov, O
Avila, C
BackusMayes, J
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, P
Banerjee, S
Barberis, E
Barfuss, AF
Bargassa, P
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Bauer, D
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Bellavance, A
Benitez, JA
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Blazey, G
Blekman, F
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brock, R
Brooijmans, G
Bross, A
Brown, D
Bu, XB
Buchanan, NJ
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burnett, TH
Buszello, CP
Calfayan, P
Calpas, B
Calvet, S
Cammin, J
Carrasco-Lizarraga, MA
Carrera, E
Carvalho, W
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, KM
Chandra, A
Cheu, E
Cho, DK
Choi, S
Choudhary, B
Christofek, L
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Crepe-Renaudin, S
Cuplov, V
Cutts, D
Cwiok, M
da Motta, H
Das, A
Davies, G
De, K
de Jong, SJ
De la Cruz-Burelo, E
Martins, CD
DeVaughan, K
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
Diehl, HT
Diesburg, M
Dominguez, A
Dorland, T
Dubey, A
Dudko, LV
Duflot, L
Dugad, SR
Duggan, D
Duperrin, A
Dutt, S
Dyer, J
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Ermolov, P
Escalier, M
Evans, H
Evdokimov, A
Evdokimov, VN
Ferapontov, AV
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fu, S
Fuess, S
Gadfort, T
Galea, CF
Garcia, C
Garcia-Bellido, A
Gavrilov, V
Gay, P
Geist, W
Geng, W
Gerber, CE
Gershtein, Y
Gillberg, D
Ginther, G
Gomez, B
Goussiou, A
Grannis, PD
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, P
Haas, A
Hadley, NJ
Haefner, P
Hagopian, S
Haley, J
Hall, I
Hall, RE
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Hebbeker, T
Hedin, D
Hegeman, JG
Heinson, AP
Heintz, U
Hensel, C
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hohlfeld, M
Hossain, S
Houben, P
Hu, Y
Hubacek, Z
Huske, N
Hynek, V
Iashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jakobs, K
Jarvis, C
Jesik, R
Johns, K
Johnson, C
Johnson, M
Johnston, D
Jonckheere, A
Jonsson, P
Juste, A
Kajfasz, E
Karmanov, D
Kasper, PA
Katsanos, I
Kaushik, V
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Khatidze, D
Kim, TJ
Kirby, MH
Kirsch, M
Klima, B
Kohli, JM
Konrath, JP
Kozelov, AV
Kraus, J
Kuhl, T
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lacroix, F
Lam, D
Lammers, S
Landsberg, G
Lebrun, P
Lee, WM
Leflat, A
Lellouch, J
Li, J
Li, L
Li, QZ
Lietti, SM
Lim, JK
Lima, JGR
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
Madaras, RJ
Mattig, P
Magerkurth, A
Mal, PK
Malbouisson, HB
Malik, S
Malyshev, VL
Maravin, Y
Martin, B
McCarthy, R
Meijer, MM
Melnitchouk, A
Mendoza, L
Mercadante, PG
Merkin, M
Merritt, KW
Meyer, A
Meyer, J
Mitrevski, J
Mommsen, RK
Mondal, NK
Moore, RW
Moulik, T
Muanza, GS
Mulhearn, M
Mundal, O
Mundim, L
Nagy, E
Naimuddin, M
Narain, M
Neal, HA
Negret, JP
Neustroev, P
Nilsen, H
Nogima, H
Novaes, SF
Nunnemann, T
O'Neil, DC
Obrant, G
Ochando, C
Onoprienko, D
Oshima, N
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Garzon, GJOY
Owen, M
Padilla, M
Padley, P
Pangilinan, M
Parashar, N
Park, SJ
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Pawloski, G
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petroff, P
Petteni, M
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pogorelov, Y
Pol, ME
Polozov, P
Pope, BG
Popov, AV
Potter, C
da Silva, WLP
Prosper, HB
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rakitine, A
Rangel, MS
Ranjan, K
Ratoff, PN
Renkel, P
Rich, P
Rijssenbeek, M
Ripp-Baudot, I
Rizatdinova, F
Robinson, S
Rodrigues, RF
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Sanghi, B
Savage, G
Sawyer, L
Scanlon, T
Schaile, D
Schamberger, RD
Scheglov, Y
Schellman, H
Schliephake, T
Schlobohm, S
Schwanenberger, C
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shamim, M
Shary, V
Shchukin, AA
Shivpuri, RK
Siccardi, V
Simak, V
Sirotenko, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Sopczak, A
Sosebee, M
Soustruznik, K
Spurlock, B
Stark, J
Stolin, V
Stoyanova, DA
Strandberg, J
Strandberg, S
Strang, MA
Strauss, E
Strauss, M
Strohmer, R
Strom, D
Stutte, L
Sumowidagdo, S
Svoisky, P
Sznajder, A
Tanasijczuk, A
Taylor, W
Tiller, B
Tissandier, F
Titov, M
Tokmenin, VV
Torchiani, I
Tsybychev, D
Tuchming, B
Tully, C
Tuts, PM
Unalan, R
Uvarov, L
Uvarov, S
Uzunyan, S
Vachon, B
van den Berg, PJ
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verdier, P
Vertogradov, LS
Verzocchi, M
Vilanova, D
Villeneuve-Seguier, F
Vint, P
Vokac, P
Voutilainen, M
Wagner, R
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weber, G
Weber, M
Welty-Rieger, L
Wenger, A
Wermes, N
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
Zeitnitz, C
Zelitch, S
Zhao, T
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zivkovic, L
Zutshi, V
Zverev, EG
AF Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.
Anastasoaie, M.
Ancu, L. S.
Andeen, T.
Andrieu, B.
Anzelc, M. S.
Aoki, M.
Arnoud, Y.
Arov, M.
Arthaud, M.
Askew, A.
Asman, B.
Assis Jesus, A. C. S.
Atramentov, O.
Avila, C.
BackusMayes, J.
Badaud, F.
Bagby, L.
Baldin, B.
Bandurin, D. V.
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Banerjee, S.
Barberis, E.
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Bargassa, P.
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Cheu, E.
Cho, D. K.
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Christoudias, T.
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da Motta, H.
Das, A.
Davies, G.
De, K.
de Jong, S. J.
De la Cruz-Burelo, E.
Martins, C. De Oliveira
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Lokajicek, M.
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Maciel, A. K. A.
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Madaras, R. J.
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Malbouisson, H. B.
Malik, S.
Malyshev, V. L.
Maravin, Y.
Martin, B.
McCarthy, R.
Meijer, M. M.
Melnitchouk, A.
Mendoza, L.
Mercadante, P. G.
Merkin, M.
Merritt, K. W.
Meyer, A.
Meyer, J.
Mitrevski, J.
Mommsen, R. K.
Mondal, N. K.
Moore, R. W.
Moulik, T.
Muanza, G. S.
Mulhearn, M.
Mundal, O.
Mundim, L.
Nagy, E.
Naimuddin, M.
Narain, M.
Neal, H. A.
Negret, J. P.
Neustroev, P.
Nilsen, H.
Nogima, H.
Novaes, S. F.
Nunnemann, T.
O'Neil, D. C.
Obrant, G.
Ochando, C.
Onoprienko, D.
Oshima, N.
Osman, N.
Osta, J.
Otec, R.
Otero y Garzon, G. J.
Owen, M.
Padilla, M.
Padley, P.
Pangilinan, M.
Parashar, N.
Park, S. -J.
Park, S. K.
Parsons, J.
Partridge, R.
Parua, N.
Patwa, A.
Pawloski, G.
Penning, B.
Perfilov, M.
Peters, K.
Peters, Y.
Petroff, P.
Petteni, M.
Piegaia, R.
Piper, J.
Pleier, M. -A.
Podesta-Lerma, P. L. M.
Podstavkov, V. M.
Pogorelov, Y.
Pol, M. -E.
Polozov, P.
Pope, B. G.
Popov, A. V.
Potter, C.
Prado da Silva, W. L.
Prosper, H. B.
Protopopescu, S.
Qian, J.
Quadt, A.
Quinn, B.
Rakitine, A.
Rangel, M. S.
Ranjan, K.
Ratoff, P. N.
Renkel, P.
Rich, P.
Rijssenbeek, M.
Ripp-Baudot, I.
Rizatdinova, F.
Robinson, S.
Rodrigues, R. F.
Rominsky, M.
Royon, C.
Rubinov, P.
Ruchti, R.
Safronov, G.
Sajot, G.
Sanchez-Hernandez, A.
Sanders, M. P.
Sanghi, B.
Savage, G.
Sawyer, L.
Scanlon, T.
Schaile, D.
Schamberger, R. D.
Scheglov, Y.
Schellman, H.
Schliephake, T.
Schlobohm, S.
Schwanenberger, C.
Schwienhorst, R.
Sekaric, J.
Severini, H.
Shabalina, E.
Shamim, M.
Shary, V.
Shchukin, A. A.
Shivpuri, R. K.
Siccardi, V.
Simak, V.
Sirotenko, V.
Skubic, P.
Slattery, P.
Smirnov, D.
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.
Strandberg, J.
Strandberg, S.
Strang, M. A.
Strauss, E.
Strauss, M.
Stroehmer, R.
Strom, D.
Stutte, L.
Sumowidagdo, S.
Svoisky, P.
Sznajder, A.
Tanasijczuk, A.
Taylor, W.
Tiller, B.
Tissandier, F.
Titov, M.
Tokmenin, V. V.
Torchiani, I.
Tsybychev, D.
Tuchming, B.
Tully, C.
Tuts, P. M.
Unalan, R.
Uvarov, L.
Uvarov, S.
Uzunyan, S.
Vachon, B.
van den Berg, P. J.
Van Kooten, R.
van Leeuwen, W. M.
Varelas, N.
Varnes, E. W.
Vasilyev, I. A.
Verdier, P.
Vertogradov, L. S.
Verzocchi, M.
Vilanova, D.
Villeneuve-Seguier, F.
Vint, P.
Vokac, P.
Voutilainen, M.
Wagner, R.
Wahl, H. D.
Wang, M. H. L. S.
Warchol, J.
Watts, G.
Wayne, M.
Weber, G.
Weber, M.
Welty-Rieger, L.
Wenger, A.
Wermes, N.
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.
Zeitnitz, C.
Zelitch, S.
Zhao, T.
Zhou, B.
Zhu, J.
Zielinski, M.
Zieminska, D.
Zivkovic, L.
Zutshi, V.
Zverev, E. G.
CA DO Collaboration
TI Search for Anomalous Top-Quark Couplings with the D0 Detector
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID EVENTS
AB Anomalous Wtb couplings modify the angular correlations of the top-quark decay products and change the single top-quark production cross section. We present limits on anomalous top-quark couplings by combining information from W boson helicity measurements in top-quark decays and anomalous coupling searches in the single top-quark final state. We set limits on right-handed vector couplings as well as left-handed and right-handed tensor couplings based on about 1 fb(-1) of data collected by the D0 experiment.
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[Alves, G. A.; Barreto, J.; da Motta, H.; Maciel, A. K. A.; Pol, M. -E.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil.
[Assis Jesus, A. C. S.; Begalli, M.; Carvalho, W.; Martins, C. De Oliveira; Malbouisson, H. B.; Mundim, L.; Nogima, H.; Prado da Silva, W. L.; Rodrigues, R. F.; Sznajder, A.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil.
[Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil.
[Lietti, S. M.; Mercadante, P. G.; Novaes, S. F.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] Univ Alberta, Edmonton, AB, Canada.
[Bu, X. B.; Han, L.; Liu, Y.; Yin, H.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Avila, C.; Gomez, B.; Mendoza, L.; Negret, J. P.] Univ Los Andes, Bogota, Colombia.
[Hynek, V.; Kvita, J.; Soustruznik, K.] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic.
[Hubacek, Z.; Otec, R.; 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, Ecuador.
[Badaud, F.; Gay, P.; Gris, Ph.; Lacroix, F.; Tissandier, F.] Univ Clermont Ferrand, LPC, CNRS, IN2P3, Clermont, France.
[Arnoud, Y.; Crepe-Renaudin, S.; Martin, B.; Sajot, G.; Stark, J.] Univ Grenoble 1, CNRS, IN2P3, Inst Natl Polytech Grenoble,LPSC, Grenoble, France.
[Barfuss, A. -F.; Calpas, B.; Cousinou, M. -C.; Duperrin, A.; Escalier, M.; Geng, W.; Kajfasz, E.; Kermiche, S.; Muanza, G. S.; Nagy, E.] Aix Marseille Univ, CPPM, CNRS, IN2P3, Marseille, France.
[Calvet, S.; Duflot, L.; Grivaz, J. -F.; Jaffre, M.; Ochando, C.; Petroff, P.] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France.
[Andrieu, B.; Bernardi, G.; Huske, N.; Lellouch, J.; Sanders, M. P.; Sonnenschein, L.] Univ Paris 06, CNRS, LPNHE, IN2P3, Paris, France.
[Arthaud, M.; Bassler, U.; Besancon, M.; Couderc, F.; Deliot, F.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] SPP, Irfu, CEA, Saclay, France.
[Brown, D.; Geist, W.; Ripp-Baudot, I.; Siccardi, V.] Univ Strasbourg, CNRS, IPHC, IN2P3, Strasbourg, France.
[Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France.
[Hebbeker, T.; Kirsch, M.; Meyer, A.] Rhein Westfal TH Aachen, Phys Inst A III, Aachen, Germany.
[Buescher, V.; Hensel, C.; Hohlfeld, M.; Meyer, J.; Mundal, O.; Park, S. -J.; Pleier, M. -A.; Quadt, A.; Wermes, N.] Univ Bonn, Inst Phys, D-5300 Bonn, Germany.
[Bernhard, R.; Jakobs, K.; Konrath, J. -P.; Nilsen, H.; Penning, B.; Torchiani, I.; Wenger, A.] Univ Freiburg, Inst Phys, Freiburg, Germany.
[Fiedler, F.; Kuhl, T.; Weber, G.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany.
[Calfayan, P.; Grohsjean, A.; Haefner, P.; Nunnemann, T.; Schaile, D.; Stroehmer, R.; Tiller, B.] Univ Munich, Munich, Germany.
[Maettig, P.; Peters, Y.; Schliephake, T.; Wicke, D.; Zeitnitz, C.] Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany.
[Beri, S. B.; Bhatnagar, V.; Dutt, S.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India.
[Choudhary, B.; Dubey, A.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India.
[Acharya, B. S.; Banerjee, P.; Banerjee, S.; Dugad, S. R.; Mondal, N. K.] Tata Inst Fundamental Res, Mumbai 400005, Maharashtra, India.
[Cwiok, M.; Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland.
[Kim, T. J.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea.
[Choi, S.] Sungkyunkwan Univ, Suwon, South Korea.
[Carrasco-Lizarraga, M. A.; Castilla-Valdez, H.; De la Cruz-Burelo, E.; Luna-Garcia, R.; Podesta-Lerma, P. L. M.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[Hegeman, J. G.; Houben, P.; van den Berg, P. J.; van Leeuwen, W. M.] NIKHEF, FOM Inst, Amsterdam, Netherlands.
[Anastasoaie, M.; Ancu, L. S.; de Jong, S. J.; Filthaut, F.; Galea, C. F.; Meijer, M. M.; Svoisky, P.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands.
[Abazov, V. M.; Alexeev, G. D.; Kharzheev, Y. N.; Kozelov, A. V.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia.
[Gavrilov, V.; Polozov, P.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Boos, E. E.; Bunichev, V.; Dudko, L. V.; Ermolov, P.; Karmanov, D.; Kuzmin, V. A.; Leflat, A.; Merkin, M.; Perfilov, M.; Zverev, E. G.] 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.; 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.; Strandberg, S.] Lund Univ, Lund, Sweden.
[Cheu, E.; Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA.
[Madaras, R. J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Hall, R. E.] Calif State Univ Fresno, Fresno, CA 93740 USA.
[Chandra, A.; Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA.
[Adams, T.; Askew, A.; Atramentov, O.; Blessing, S.; Buchanan, N. J.; Carrera, E.; Duggan, D.; Gershtein, Y.; Hagopian, S.; Hoang, T.; Prosper, H. B.; Sekaric, J.; Sumowidagdo, S.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA.
[Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bellavance, A.; 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.; Fisher, W.; Fisk, H. E.; Fu, S.; Fuess, S.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Klima, B.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Merritt, K. W.; Naimuddin, M.; Oshima, N.; Podstavkov, V. M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Wang, M. H. L. S.; Weber, M.; Yamada, R.; Yasuda, T.; Ye, Z.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Adams, M.; Gerber, C. E.; Shabalina, E.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA.
[Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Lima, J. G. R.; Uzunyan, S.; Zutshi, V.] No Illinois Univ, De Kalb, IL 60115 USA.
[Andeen, T.; Anzelc, M. S.; Buchholz, D.; Kirby, M. H.; Schellman, H.; Strom, D.; Yacoob, S.; Youn, S. W.] Northwestern Univ, Evanston, IL 60208 USA.
[Evans, H.; Parua, N.; Van Kooten, R.; Welty-Rieger, L.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA.
[Chan, K. M.; Hildreth, M. D.; Lam, D.; Osta, J.; Pogorelov, Y.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA.
[Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA.
[Hauptman, J. M.] Iowa State Univ, Ames, IA 50011 USA.
[Baringer, P.; Bean, A.; Clutter, J.; Moulik, T.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA.
[Ahsan, M.; Bandurin, D. V.; Bolton, T. A.; Cuplov, V.; Ferapontov, A. V.; Maravin, Y.; Onoprienko, D.; Shamim, M.] 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.; Hadley, N. J.; Jarvis, C.; Wetstein, M.] Univ Maryland, College Pk, MD 20742 USA.
[Boline, D.; Cho, D. K.; Heintz, U.; Jabeen, S.] Boston Univ, Boston, MA 02215 USA.
[Alverson, G.; Barberis, E.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA.
[Alton, A.; Magerkurth, A.; Neal, H. A.; Qian, J.; Strandberg, J.; Xu, C.; Zhou, B.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Abolins, M.; Benitez, J. A.; Brock, R.; Dyer, J.; Edmunds, D.; Geng, W.; Hall, I.; Kraus, J.; Linnemann, J.; Piper, J.; Pope, B. G.; Schwienhorst, R.; Unalan, 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.; Malik, S.; Snow, G. R.; Voutilainen, M.] Univ Nebraska, Lincoln, NE 68588 USA.
[Haley, J.; Tully, C.; Wagner, R.] Princeton Univ, Princeton, NJ 08544 USA.
[Iashvili, I.; Kharchilava, A.; Kumar, A.; Strang, M. A.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Gadfort, T.; Haas, A.; Johnson, C.; Katsanos, I.; Khatidze, D.; Lammers, S.; Mitrevski, J.; Mulhearn, M.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Cammin, J.; Demina, R.; Ferbel, T.; Garcia, C.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Slattery, P.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Chakrabarti, S.; Grannis, P. D.; Guo, F.; Guo, J.; Herner, K.; Hobbs, J. D.; Hu, Y.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.; Zhu, J.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Patwa, 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.; Jain, S.; Rominsky, M.; Severini, H.; Skubic, P.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA.
[Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Bose, T.; Christofek, L.; Cutts, D.; Enari, Y.; Landsberg, G.; Narain, M.; Pangilinan, M.; Partridge, R.; Xie, Y.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Kaushik, V.; Li, J.; 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.
[Bargassa, P.; Corcoran, M.; Mackin, D.; Padley, P.; Pawloski, G.] Rice Univ, Houston, TX 77005 USA.
[Buehler, M.; Hirosky, R.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA.
[BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Mal, P. K.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] York Univ, Toronto, ON M3J 2R7, Canada.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] McGill Univ, Montreal, PQ, Canada.
[Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon, Lyon, France.
[Hegeman, J. G.; Houben, P.; van den Berg, P. J.; van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Royal Inst Technol, Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Stockholm Univ, S-10691 Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Uppsala Univ, Uppsala, Sweden.
[Madaras, R. J.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Rakitine, A.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster, England.
[Bauer, D.; Beuselinck, R.; Blekman, F.; Buszello, C. P.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Osman, N.; Petteni, M.; Robinson, S.; Scanlon, T.; Villeneuve-Seguier, F.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Harder, K.; Mommsen, R. K.; Owen, M.; Peters, K.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester, Lancs, England.
[Andrieu, B.; Bernardi, G.; Huske, N.; Lellouch, J.; Sanders, M. P.; Sonnenschein, L.] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France.
RP Abazov, VM (reprint author), Univ Buenos Aires, Buenos Aires, DF, Argentina.
RI Sznajder, Andre/L-1621-2016; Li, Liang/O-1107-2015; Bargassa,
Pedrame/O-2417-2016; Juste, Aurelio/I-2531-2015; Yip, Kin/D-6860-2013;
Fisher, Wade/N-4491-2013; 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; KIM, Tae
Jeong/P-7848-2015; Guo, Jun/O-5202-2015; Merkin, Mikhail/D-6809-2012;
Novaes, Sergio/D-3532-2012; Mercadante, Pedro/K-1918-2012; Mundim,
Luiz/A-1291-2012; Shivpuri, R K/A-5848-2010; Gutierrez,
Phillip/C-1161-2011; bu, xuebing/D-1121-2012; Dudko, Lev/D-7127-2012;
Leflat, Alexander/D-7284-2012; Perfilov, Maxim/E-1064-2012; Boos,
Eduard/D-9748-2012
OI Melnychuk, Oleksandr/0000-0002-2089-8685; Bassler,
Ursula/0000-0002-9041-3057; Filthaut, Frank/0000-0003-3338-2247;
Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne,
Camille/0000-0003-2368-2617; Beuselinck, Raymond/0000-0003-2613-7446;
Weber, Gernot/0000-0003-4199-1640; Heinson, Ann/0000-0003-4209-6146;
grannis, paul/0000-0003-4692-2142; Qian, Jianming/0000-0003-4813-8167;
Haas, Andrew/0000-0002-4832-0455; Williams, Mark/0000-0001-5448-4213;
Weber, Michele/0000-0002-2770-9031; Grohsjean,
Alexander/0000-0003-0748-8494; Begel, Michael/0000-0002-1634-4399; de
Jong, Sijbrand/0000-0002-3120-3367; Blessing, Susan/0000-0002-4455-7279;
Gershtein, Yuri/0000-0002-4871-5449; Duperrin,
Arnaud/0000-0002-5789-9825; Hoeneisen, Bruce/0000-0002-6059-4256; Malik,
Sudhir/0000-0002-6356-2655; Blekman, Freya/0000-0002-7366-7098; Blazey,
Gerald/0000-0002-7435-5758; Evans, Harold/0000-0003-2183-3127; Sznajder,
Andre/0000-0001-6998-1108; Li, Liang/0000-0001-6411-6107; Bargassa,
Pedrame/0000-0001-8612-3332; Landsberg, Greg/0000-0002-4184-9380; Bean,
Alice/0000-0001-5967-8674; Madaras, Ronald/0000-0001-7399-2993; Sawyer,
Lee/0000-0001-8295-0605; Hedin, David/0000-0001-9984-215X; Carrera,
Edgar/0000-0002-0857-8507; Wahl, Horst/0000-0002-1345-0401; Juste,
Aurelio/0000-0002-1558-3291; Yip, Kin/0000-0002-8576-4311; 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; KIM, Tae Jeong/0000-0001-8336-2434; Guo,
Jun/0000-0001-8125-9433; Novaes, Sergio/0000-0003-0471-8549; Mundim,
Luiz/0000-0001-9964-7805; Dudko, Lev/0000-0002-4462-3192;
FU 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 (
United Kingdom); MSMT and GACR ( Czech Republic); CRC Program, CFI,
NSERC, and WestGrid Project ( Canada); BMBF and DFG ( Germany); SFI (
Ireland); The Swedish Research Council ( Sweden); CAS and CNSF ( China);
Alexander von Humboldt Foundation ( Germany)
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 ( United Kingdom); MSMT and
GACR ( Czech Republic); CRC Program, CFI, NSERC, and WestGrid Project (
Canada); BMBF and DFG ( Germany); SFI ( Ireland); The Swedish Research
Council ( Sweden); CAS and CNSF ( China); and the Alexander von Humboldt
Foundation ( Germany).
NR 25
TC 24
Z9 24
U1 0
U2 6
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 MAR 6
PY 2009
VL 102
IS 9
AR 092002
DI 10.1103/PhysRevLett.102.092002
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900015
ER
PT J
AU Abazov, VM
Abbott, B
Abolins, M
Acharya, BS
Adams, M
Adams, T
Aguilo, E
Ahsan, M
Alexeev, GD
Alkhazov, G
Alton, A
Alverson, G
Alves, GA
Anastasoaie, M
Ancu, LS
Andeen, T
Andrieu, B
Anzelc, MS
Aoki, M
Arnoud, Y
Arov, M
Arthaud, M
Askew, A
Asman, B
Jesus, ACSA
Atramentov, O
Avila, C
Badaud, F
Bagby, L
Baldin, B
Bandurin, DV
Banerjee, P
Banerjee, S
Barberis, E
Barfuss, AF
Bargassa, P
Baringer, P
Barreto, J
Bartlett, JF
Bassler, U
Bauer, D
Beale, S
Bean, A
Begalli, M
Begel, M
Belanger-Champagne, C
Bellantoni, L
Bellavance, A
Benitez, JA
Beri, SB
Bernardi, G
Bernhard, R
Bertram, I
Besancon, M
Beuselinck, R
Bezzubov, VA
Bhat, PC
Bhatnagar, V
Blazey, G
Blekman, F
Blessing, S
Bloom, K
Boehnlein, A
Boline, D
Bolton, TA
Boos, EE
Borissov, G
Bose, T
Brandt, A
Brock, R
Brooijmans, G
Bross, A
Brown, D
Bu, XB
Buchanan, NJ
Buchholz, D
Buehler, M
Buescher, V
Bunichev, V
Burdin, S
Burnett, TH
Buszello, CP
Calfayan, P
Calvet, S
Cammin, J
Carrasco-Lizarraga, MA
Carrera, E
Carvalho, W
Casey, BCK
Castilla-Valdez, H
Chakrabarti, S
Chakraborty, D
Chan, KM
Chandra, A
Cheu, E
Cho, DK
Choi, S
Choudhary, B
Christofek, L
Christoudias, T
Cihangir, S
Claes, D
Clutter, J
Cooke, M
Cooper, WE
Corcoran, M
Couderc, F
Cousinou, MC
Crepe-Renaudin, S
Cuplov, V
Cutts, D
Cwiok, M
da Motta, H
Das, A
Davies, G
De, K
de Jong, SJ
De la Cruz-Burelo, E
De Oliveira Martins, C
DeVaughan, K
Deliot, F
Demarteau, M
Demina, R
Denisov, D
Denisov, SP
Desai, S
Diehl, HT
Diesburg, M
Dominguez, A
Dorland, T
Dubey, A
Dudko, LV
Duflot, L
Dugad, SR
Duggan, D
Duperrin, A
Dutt, S
Dyer, J
Dyshkant, A
Eads, M
Edmunds, D
Ellison, J
Elvira, VD
Enari, Y
Eno, S
Ermolov, P
Evans, H
Evdokimov, A
Evdokimov, VN
Ferapontov, AV
Ferbel, T
Fiedler, F
Filthaut, F
Fisher, W
Fisk, HE
Fortner, M
Fox, H
Fu, S
Fuess, S
Gadfort, T
Galea, CF
Garcia, C
Garcia-Bellido, A
Gavrilov, V
Gay, P
Geist, W
Geng, W
Gerber, CE
Gershtein, Y
Gillberg, D
Ginther, G
Gomez, B
Goussiou, A
Grannis, PD
Greenlee, H
Greenwood, ZD
Gregores, EM
Grenier, G
Gris, P
Grivaz, JF
Grohsjean, A
Grunendahl, S
Grunewald, MW
Guo, F
Guo, J
Gutierrez, G
Gutierrez, P
Haas, A
Hadley, NJ
Haefner, P
Hagopian, S
Haley, J
Hall, I
Hall, RE
Han, L
Harder, K
Harel, A
Hauptman, JM
Hays, J
Hebbeker, T
Hedin, D
Hegeman, JG
Heinson, AP
Heintz, U
Hensel, C
Herner, K
Hesketh, G
Hildreth, MD
Hirosky, R
Hoang, T
Hobbs, JD
Hoeneisen, B
Hohlfeld, M
Hossain, S
Houben, P
Hu, Y
Hubacek, Z
Hynek, V
Iashvili, I
Illingworth, R
Ito, AS
Jabeen, S
Jaffre, M
Jain, S
Jakobs, K
Jarvis, C
Jesik, R
Johns, K
Johnson, C
Johnson, M
Johnston, D
Jonckheere, A
Jonsson, P
Juste, A
Kajfasz, E
Karmanov, D
Kasper, PA
Katsanos, I
Kaushik, V
Kehoe, R
Kermiche, S
Khalatyan, N
Khanov, A
Kharchilava, A
Kharzheev, YN
Khatidze, D
Kim, TJ
Kirby, MH
Kirsch, M
Klima, B
Kohli, JM
Konrath, JP
Kozelov, AV
Kraus, J
Kuhl, T
Kumar, A
Kupco, A
Kurca, T
Kuzmin, VA
Kvita, J
Lacroix, F
Lam, D
Lammers, S
Landsberg, G
Lebrun, P
Lee, WM
Leflat, A
Lellouch, J
Li, J
Li, L
Li, QZ
Lietti, SM
Lim, JK
Lima, JGR
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
Madaras, RJ
Mattig, P
Magerkurth, A
Mal, PK
Malbouisson, HB
Malik, S
Malyshev, VL
Maravin, Y
Martin, B
McCarthy, R
Meijer, MM
Melnitchouk, A
Mendoza, L
Mercadante, PG
Merkin, M
Merritt, KW
Meyer, A
Meyer, J
Mitrevski, J
Mommsen, RK
Mondal, NK
Moore, RW
Moulik, T
Muanza, GS
Mulhearn, M
Mundal, O
Mundim, L
Nagy, E
Naimuddin, M
Narain, M
Neal, HA
Negret, JP
Neustroev, P
Nilsen, H
Nogima, H
Novaes, SF
Nunnemann, T
O'Neil, DC
Obrant, G
Ochando, C
Onoprienko, D
Oshima, N
Osman, N
Osta, J
Otec, R
Garzon, GJY
Owen, M
Padley, P
Pangilinan, M
Parashar, N
Park, SJ
Park, SK
Parsons, J
Partridge, R
Parua, N
Patwa, A
Pawloski, G
Penning, B
Perfilov, M
Peters, K
Peters, Y
Petroff, P
Petteni, M
Piegaia, R
Piper, J
Pleier, MA
Podesta-Lerma, PLM
Podstavkov, VM
Pogorelov, Y
Pol, ME
Polozov, P
Pope, BG
Popov, AV
Potter, C
da Silva, WLP
Prosper, HB
Protopopescu, S
Qian, J
Quadt, A
Quinn, B
Rakitine, A
Rangel, MS
Ranjan, K
Ratoff, PN
Renkel, P
Rich, P
Rijssenbeek, M
Ripp-Baudot, I
Rizatdinova, F
Robinson, S
Rodrigues, RF
Rominsky, M
Royon, C
Rubinov, P
Ruchti, R
Safronov, G
Sajot, G
Sanchez-Hernandez, A
Sanders, MP
Sanghi, B
Savage, G
Sawyer, L
Scanlon, T
Schaile, D
Schamberger, RD
Scheglov, Y
Schellman, H
Schliephake, T
Schlobohm, S
Schwanenberger, C
Schwartzman, A
Schwienhorst, R
Sekaric, J
Severini, H
Shabalina, E
Shamim, M
Shary, V
Shchukin, AA
Shivpuri, RK
Siccardi, V
Simak, V
Sirotenko, V
Skubic, P
Slattery, P
Smirnov, D
Snow, GR
Snow, J
Snyder, S
Soldner-Rembold, S
Sonnenschein, L
Sopczak, A
Sosebee, M
Soustruznik, K
Spurlock, B
Stark, J
Stolin, V
Stoyanova, DA
Strandberg, J
Strandberg, S
Strang, MA
Strauss, E
Strauss, M
Strohmer, R
Strom, D
Stutte, L
Sumowidagdo, S
Svoisky, P
Sznajder, A
Tanasijczuk, A
Taylor, W
Tiller, B
Tissandier, F
Titov, M
Tokmenin, VV
Torchiani, I
Tsybychev, D
Tuchming, B
Tully, C
Tuts, PM
Unalan, R
Uvarov, L
Uvarov, S
Uzunyan, S
Vachon, B
van den Berg, PJ
Van Kooten, R
van Leeuwen, WM
Varelas, N
Varnes, EW
Vasilyev, IA
Verdier, P
Vertogradov, LS
Verzocchi, M
Vilanova, D
Villeneuve-Seguier, F
Vint, P
Vokac, P
Voutilainen, M
Wagner, R
Wahl, HD
Wang, MHLS
Warchol, J
Watts, G
Wayne, M
Weber, G
Weber, M
Welty-Rieger, L
Wenger, A
Wermes, N
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
Yin, H
Yip, K
Yoo, HD
Youn, SW
Yu, J
Zeitnitz, C
Zelitch, S
Zhao, T
Zhou, B
Zhu, J
Zielinski, M
Zieminska, D
Zieminski, A
Zivkovic, L
Zutshi, V
Zverev, EG
AF Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahsan, M.
Alexeev, G. D.
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CA D0 Collaboration
TI Evidence for the Decay B-s(0)->(DsDs(*))-D-(*) and a Measurement of
Delta Gamma(CP)(s)/Gamma(s)
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SYSTEM
AB We search for the semi-inclusive process B-s(0)->(DsDs(*))-D-(*) using 2.8 fb(-1) of pp collisions at s=1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of B(B-s(0)->(DsDs(*))-D-(*))=0.035 +/- 0.010(stat.)+/- 0.011(syst.). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B-s(0) decays resulting in a width difference of Delta Gamma(CP)(s)/Gamma(s)=0.072 +/- 0.021(stat.)+/- 0.022(syst.).
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[Iashvili, I.; Kharchilava, A.; Kumar, A.; Strang, M. A.] SUNY Buffalo, Buffalo, NY 14260 USA.
[Brooijmans, G.; Gadfort, T.; Haas, A.; Johnson, C.; Katsanos, I.; Khatidze, D.; Lammers, S.; Mitrevski, J.; Mulhearn, M.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA.
[Cammin, J.; Demina, R.; Ferbel, T.; Garcia, C.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Slattery, P.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA.
[Chakrabarti, S.; Grannis, P. D.; Guo, F.; Guo, J.; Herner, K.; Hobbs, J. D.; Hu, Y.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Strauss, E.; Tsybychev, D.; Zhu, J.] SUNY Stony Brook, Stony Brook, NY 11794 USA.
[Begel, M.; Evdokimov, A.; Patwa, 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.; Jain, S.; Rominsky, M.; Severini, H.; Skubic, P.; Strauss, M.] Univ Oklahoma, Norman, OK 73019 USA.
[Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA.
[Bose, T.; Christofek, L.; Cutts, D.; Enari, Y.; Landsberg, G.; Narain, M.; Pangilinan, M.; Partridge, R.; Xie, Y.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA.
[Brandt, A.; De, K.; Kaushik, V.; Li, J.; 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.
[Bargassa, P.; Corcoran, M.; Mackin, D.; Padley, P.; Pawloski, G.] Rice Univ, Houston, TX 77005 USA.
[Brown, D.; Buehler, M.; Hirosky, R.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA.
[Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Mal, P. K.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] York Univ, Toronto, ON M3J 2R7, Canada.
[Aguilo, E.; Beale, S.; Gillberg, D.; Liu, Z.; Moore, R. W.; O'Neil, D. C.; Potter, C.; Taylor, W.; Vachon, B.] McGill Univ, Montreal, PQ, Canada.
[Andrieu, B.; Bernardi, G.; Sanders, M. P.; Sonnenschein, L.] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France.
[Grenier, G.; Kurca, T.; Lebrun, P.] Univ Lyon, Lyon, France.
[Hegeman, J. G.; Houben, P.; van den Berg, P. J.; van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Royal Inst Technol, Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Stockholm Univ, S-10691 Stockholm, Sweden.
[Asman, B.; Belanger-Champagne, C.; Strandberg, S.] Uppsala Univ, Uppsala, Sweden.
[Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Rakitine, A.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster, England.
[Bauer, D.; Beuselinck, R.; Blekman, F.; Buszello, C. P.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Osman, N.; Petteni, M.; Robinson, S.; Scanlon, T.; Villeneuve-Seguier, F.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London, England.
[Harder, K.; Mommsen, R. K.; Owen, M.; Peters, K.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester, Lancs, England.
[Madaras, R. J.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
RP Abazov, VM (reprint author), Univ Buenos Aires, Buenos Aires, DF, Argentina.
RI Merkin, Mikhail/D-6809-2012; Novaes, Sergio/D-3532-2012; Mercadante,
Pedro/K-1918-2012; Mundim, Luiz/A-1291-2012; Yip, Kin/D-6860-2013;
Fisher, Wade/N-4491-2013; Shivpuri, R K/A-5848-2010; Gutierrez,
Phillip/C-1161-2011; bu, xuebing/D-1121-2012; Dudko, Lev/D-7127-2012;
Leflat, Alexander/D-7284-2012; Perfilov, Maxim/E-1064-2012; Boos,
Eduard/D-9748-2012; Li, Liang/O-1107-2015; 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; KIM, Tae
Jeong/P-7848-2015; Guo, Jun/O-5202-2015; Sznajder, Andre/L-1621-2016
OI Novaes, Sergio/0000-0003-0471-8549; Mundim, Luiz/0000-0001-9964-7805;
Yip, Kin/0000-0002-8576-4311; Dudko, Lev/0000-0002-4462-3192; Li,
Liang/0000-0001-6411-6107; Bertram, Iain/0000-0003-4073-4941; 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; KIM, Tae Jeong/0000-0001-8336-2434; Guo,
Jun/0000-0001-8125-9433; Sznajder, Andre/0000-0001-6998-1108
FU DOE; NSF ( USA);; CEA; CNRS/ IN2P3 ( France); FUNDUNESP ( Brazil); DAE
and DST ( India); Colciencias ( Colombia); CONACyT ( Mexico);; KRF and
KOSEF ( Korea); CONICET and UBACyT ( Argentina); FOM ( The Netherlands);
TFC ( United Kingdom); MSMT and GACR ( Czech Republic); CRC Program;
CFI; NSERC; WestGrid Project ( Canada); BMBF and DFG ( Germany); SFI (
Ireland); The Swedish Research Council ( Sweden); CAS and CNSF ( China);
Alexander von Humboldt Foundation ( Germany)
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 ( United Kingdom); MSMT and
GACR ( Czech Republic); CRC Program, CFI, NSERC, and WestGrid Project (
Canada); BMBF and DFG ( Germany); SFI ( Ireland); The Swedish Research
Council ( Sweden); CAS and CNSF ( China); and the Alexander von Humboldt
Foundation ( Germany).
NR 18
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Z9 12
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 MAR 6
PY 2009
VL 102
IS 9
AR 091801
DI 10.1103/PhysRevLett.102.091801
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900008
ER
PT J
AU Aguilera, DN
Cirigliano, V
Pons, JA
Reddy, S
Sharma, R
AF Aguilera, Deborah N.
Cirigliano, Vincenzo
Pons, Jose A.
Reddy, Sanjay
Sharma, Rishi
TI Superfluid Heat Conduction and the Cooling of Magnetized Neutron Stars
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID TEMPERATURE DISTRIBUTION; THERMAL-CONDUCTIVITY; DENSE MATTER; EMISSION;
CRUSTS
AB We report on a new mechanism for heat conduction in the neutron star crust. We find that collective modes of superfluid neutron matter, called superfluid phonons, can influence heat conduction in magnetized neutron stars. They can dominate the heat conduction transverse to the magnetic field when the magnetic field B greater than or similar to 10(13) G. At a density of rho similar or equal to 10(12)-10(14) g/cm(3), the conductivity due to superfluid phonons is significantly larger than that due to lattice phonons and is comparable to electron conductivity when the temperature similar or equal to 10(8) K. This new mode of heat conduction can limit the surface anisotropy in highly magnetized neutron stars. Cooling curves of magnetized neutron stars with and without superfluid heat conduction could show observationally discernible differences.
C1 [Aguilera, Deborah N.] Comis Nacl Energia Atom, Tandar Lab, RA-1650 Buenos Aires, DF, Argentina.
[Cirigliano, Vincenzo; Reddy, Sanjay; Sharma, Rishi] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Pons, Jose A.] Univ Alicante, Dept Appl Phys, E-03080 Alicante, Spain.
RP Aguilera, DN (reprint author), Comis Nacl Energia Atom, Tandar Lab, Ave Gral Paz 1499, RA-1650 Buenos Aires, DF, Argentina.
RI PONS, JOSE/D-4687-2012
OI PONS, JOSE/0000-0003-1018-8126
FU Department of Energy [DE-AC52-06NA25396]; Spanish MEC [AYA
2004-08067-C03-02]; CONICET, Argentina; LDRD program at LANL
[20080130DR]
FX We thank the participants of the INT workshop on the neutron star crust,
especially C. Horowitz and A. Cumming, for stimulating discussions. We
also thank T. Bhattacharya, A. Chugunov, J. A. Miralles, and D. Yakovlev
for discussions and correspondence. This research was supported by the
Department of Energy under Contract No. DE-AC52-06NA25396, by the
Spanish MEC Grant No. AYA 2004-08067-C03-02, and by CONICET, Argentina.
The work of S. R. was funded in part by the LDRD program at LANL under
Grant No. 20080130DR.
NR 20
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 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAR 6
PY 2009
VL 102
IS 9
AR 091101
DI 10.1103/PhysRevLett.102.091101
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900005
PM 19392503
ER
PT J
AU Aubert, B
Bona, M
Karyotakis, Y
Lees, JP
Poireau, V
Prencipe, E
Prudent, X
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Bukin, AD
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Beck, TW
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Tisserand, V.
Tico, J. Garra
Grauges, E.
Lopez, L.
Palano, A.
Pappagallo, M.
Eigen, G.
Stugu, B.
Sun, L.
Abrams, G. S.
Battaglia, M.
Brown, D. N.
Cahn, R. N.
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Ronan, M. T.
Tackmann, K.
Tanabe, T.
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Koch, H.
Schroeder, T.
Walker, D.
Asgeirsson, D. J.
Fulsom, B. G.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
Barrett, M.
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Bukin, A. D.
Buzykaev, A. R.
Druzhinin, V. P.
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Todyshev, K. Yu.
Bondioli, M.
Curry, S.
Eschrich, I.
Kirkby, D.
Lankford, A. J.
Lund, P.
Mandelkern, M.
Martin, E. C.
Stoker, D. P.
Abachi, S.
Buchanan, C.
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Liu, F.
Long, O.
Shen, B. C.
Vitug, G. M.
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Campagnari, C.
Hong, T. M.
Kovalskyi, D.
Mazur, M. A.
Richman, J. D.
Beck, T. W.
Eisner, A. M.
Flacco, C. J.
Heusch, C. A.
Kroseberg, J.
Lockman, W. S.
Schalk, T.
Schumm, B. A.
Seiden, A.
Wang, L.
Wilson, M. G.
Winstrom, L. O.
Cheng, C. H.
Doll, D. A.
Echenard, B.
Fang, F.
Hitlin, D. G.
Narsky, I.
Piatenko, T.
Porter, F. C.
Andreassen, R.
Mancinelli, G.
Meadows, B. T.
Mishra, K.
Sokoloff, M. D.
Bloom, P. C.
Ford, W. T.
Gaz, A.
Hirschauer, J. F.
Nagel, M.
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Wilson, R. J.
Altenburg, D. D.
Feltresi, E.
Hauke, A.
Jasper, H.
Karbach, M.
Merkel, J.
Petzold, A.
Spaan, B.
Wacker, K.
Kobel, M. J.
Mader, W. F.
Nogowski, R.
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CA BABAR Collaboration
TI Direct CP, Lepton Flavor, and Isospin Asymmetries in the Decays B ->
K((*))l(+)l(-)
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB We measure branching fractions and integrated rate asymmetries for the rare decays B -> K((*))l(+)l(-), where l(+)l(-) is either e(+)e(-) or mu(+)mu(-), using a sample of 384x10(6) BB events collected with the BABAR detector at the PEP-II e(+)e(-) collider. We find no evidence for direct CP or lepton-flavor asymmetries. However, for dilepton masses below the J/psi resonance, we find evidence for unexpectedly large isospin asymmetries in both B -> Kl(+)l(-) and B -> K(*)l(+)l(-) which differ, respectively, by 3.2 sigma and 2.7 sigma, including systematic uncertainties, from the standard model expectations.
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[Tico, J. Garra; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain.
Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
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[Raven, G.; Snoek, H. L.] Natl Inst Nucl & High Energy Phys, NIKHEF, NL-1009 DB Amsterdam, Netherlands.
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[del Amo Sanchez, P.; Ben-Haim, E.; Briand, H.; Calderini, G.; Chauveau, J.; David, P.; Del Buono, L.; Hamon, O.; Leruste, Ph.; Ocariz, J.; Perez, A.; Prendki, J.; Sitt, S.] Univ Paris 07, Univ Paris 06, Lab Phys Nucl & Hautes Energies, CNRS,IN2P3, F-75252 Paris, France.
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[Pegna, D. Lopes; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.] Princeton Univ, Princeton, NJ 08544 USA.
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[Ebert, M.; Hartmann, T.; Schroeder, H.; Waldi, R.] Univ Rostock, D-18051 Rostock, Germany.
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[Chen, X. R.; Liu, H.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA.
[Allen, M. T.; Aston, D.; Bartoldus, R.; Bechtle, P.; Benitez, J. F.; Cenci, R.; Coleman, J. P.; Convery, M. R.; Dingfelder, J. C.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Gabareen, A. M.; Gowdy, S. J.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kaminski, J.; 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.; Messner, R.; Muller, D. R.; Neal, H.; Nelson, S.; O'Grady, C. P.; Ofte, I.; Perazzo, A.; Perl, M.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Suzuki, K.; Swain, S. K.; Thompson, J. M.; Va'vra, J.; Wagner, A. P.; Weaver, M.; West, C. A.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Yi, K.; Young, C. C.; Ziegler, V.] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA.
[Burchat, P. R.; Edwards, A. J.; Majewski, S. A.; Miyashita, T. S.; Petersen, B. A.; Wilden, L.] 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.
[Spanier, S. M.; Wogsland, B. J.] Univ Tennessee, Knoxville, TN 37996 USA.
[Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.] Univ Texas Austin, Austin, TX 78712 USA.
[Drummond, B. W.; 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 Torino, Dipartimento Fis Sperimentale, I-10125 Turin, Italy.
[Bomben, M.; Bosisio, L.; Cartaro, C.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Bomben, M.; Bosisio, L.; Cartaro, C.; 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, IFIC, CSIC, E-46071 Valencia, Spain.
[Albert, J.; Banerjee, Sw.; Bhuyan, B.; Choi, H. H. F.; Hamano, K.; 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.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England.
[Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Pan, Y.; Pierini, M.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA.
[Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.] Univ Savoie, F-74941 Annecy Le Vieux, France.
[Peruzzi, I. M.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy.
[Sordini, V.] Univ Roma La Sapienza, I-00185 Rome, Italy.
Univ Sassari, I-07100 Sassari, Italy.
[Abrams, G. S.; Battaglia, M.; Brown, D. N.; Cahn, R. N.; Jacobsen, R. G.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.; Ronan, M. T.; Tackmann, K.; Tanabe, T.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Hawkes, C. M.; Soni, N.; Watson, A. T.] Univ Birmingham, Birmingham B15 2TT, W Midlands, England.
[Walker, D.] Univ Bristol, Bristol BS8 1TL, Avon, England.
[Bard, D. J.; Dauncey, P. D.; Nash, J. A.; Vazquez, W. Panduro; Tibbetts, M.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England.
[Arnaud, N.; Bequilleux, J.; D'Orazio, A.; Davier, M.; da Costa, J. Firmino; Grosdidier, G.; Hoecker, A.; Lepeltier, V.; Le Diberder, F.; Lutz, A. M.; Pruvot, S.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wormser, G.] Univ Paris 11, Ctr Sci Orsay, F-91898 Orsay, France.
[Bevan, A. J.; Clarke, C. K.; George, K. A.; Di Lodovico, F.; Sacco, R.; Sigamani, M.] Univ London, London E1 4NS, England.
[Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Chia, Y. M.; Edgar, C. L.; Jackson, G.; Lafferty, G. D.; West, T. J.; Yi, J. I.] Univ Manchester, Manchester M13 9PL, Lancs, England.
[Adye, T.; Franek, B.; Olaiya, E. O.; Wilson, F. F.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
RP Aubert, B (reprint author), CNRS, Phys Particules Lab, IN2P3, F-74941 Annecy Le Vieux, France.
RI dong, liaoyuan/A-5093-2015; Rizzo, Giuliana/A-8516-2015; 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; Della Ricca,
Giuseppe/B-6826-2013; Di Lodovico, Francesca/L-9109-2016; Pappagallo,
Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey,
Raymond/E-2830-2016; White, Ryan/E-2979-2015; Calabrese,
Roberto/G-4405-2015; Patrignani, Claudia/C-5223-2009; 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; Monge, Maria
Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi,
Eleonora/A-4902-2015;
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; Covarelli,
Roberto/0000-0003-1216-5235; Rizzo, Giuliana/0000-0003-1788-2866;
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; Della
Ricca, Giuseppe/0000-0003-2831-6982; 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;
White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400;
Patrignani, Claudia/0000-0002-5882-1747; 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; Monge, Maria
Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300;
Luppi, Eleonora/0000-0002-1072-5633; Faccini,
Riccardo/0000-0003-2613-5141; Cavoto, Gianluca/0000-0003-2161-918X;
Raven, Gerhard/0000-0002-2897-5323
FU DOE and NSF (U.S.); NSERC ( Canada); CEA and CNRS-IN2P3 ( France); BMBF
and DFG ( Germany); INFN ( Italy); FOM ( The Netherlands)
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 (U.S.), NSERC (
Canada), CEA and CNRS-IN2P3 ( France), BMBF and DFG ( Germany), INFN (
Italy), FOM ( The Netherlands), NFR ( Norway), MES ( Russia), MEC (
Spain), and STFC ( U. K.). Individuals have received support from the
Marie Curie EIF ( European Union) and the A. P. Sloan Foundation.
NR 16
TC 45
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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 MAR 6
PY 2009
VL 102
IS 9
AR 091803
DI 10.1103/PhysRevLett.102.091803
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900010
ER
PT J
AU Du, Y
Deskins, NA
Zhang, Z
Dohnalek, Z
Dupuis, M
Lyubinetsky, I
AF Du, Y.
Deskins, N. A.
Zhang, Z.
Dohnalek, Z.
Dupuis, M.
Lyubinetsky, I.
TI Two Pathways for Water Interaction with Oxygen Adatoms on TiO2(110)
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID REDUCED TIO2(110); O-2 DISSOCIATION; SURFACE; H2O; ADSORPTION; RUTILE;
SITES; STM
AB Scanning tunneling microscopy and density functional theory studies show that oxygen adatoms (O-a), produced during O-2 exposure of reduced TiO2(110) surfaces, alter the water dissociation and recombination chemistry through two distinctive pathways. Depending on whether H2O and O-a are on the same or adjacent Ti4+ rows, O-a facilitates H2O dissociation and proton transfer to form a terminal hydroxyl pair, positioned along or across the Ti4+ row, respectively. The latter process has not been reported previously, and it starts from a "pseudodissociated" state of water. In both pathways, the reverse H transfer results in H2O reformation and O scrambling, as manifested by an apparent along- or across-row motion of O-a's.
C1 [Deskins, N. A.; Zhang, Z.; Dohnalek, Z.; Dupuis, M.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
[Du, Y.; Lyubinetsky, I.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Dohnalek, Z (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
EM Zdenek.Dohnalek@pnl.gov; Michel.Dupuis@pnl.gov; Igor.Lyubinetsky@pnl.gov
RI Deskins, Nathaniel/H-3954-2012;
OI Zhang, Zhenrong/0000-0003-3969-2326; Dohnalek,
Zdenek/0000-0002-5999-7867
NR 29
TC 72
Z9 73
U1 2
U2 58
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 MAR 6
PY 2009
VL 102
IS 9
AR 096102
DI 10.1103/PhysRevLett.102.096102
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900038
PM 19392536
ER
PT J
AU Erni, R
Rossell, MD
Kisielowski, C
Dahmen, U
AF Erni, Rolf
Rossell, Marta D.
Kisielowski, Christian
Dahmen, Ulrich
TI Atomic-Resolution Imaging with a Sub-50-pm Electron Probe
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID MICROSCOPE; CORRECTOR; STEM
AB Using a highly coherent focused electron probe in a fifth-order aberration-corrected transmission electron microscope, we report on resolving a crystal spacing less than 50 pm. Based on the geometrical source size and residual coherent and incoherent axial lens aberrations, an electron probe is calculated, which is theoretically capable of resolving an ideal 47 pm spacing with 29% contrast. Our experimental data show the 47 pm spacing of a Ge < 114 > crystal imaged with 11%-18% contrast at a 60%-95% confidence level, providing the first direct evidence for sub-50-pm resolution in annular dark-field scanning transmission electron microscopy imaging.
C1 [Erni, Rolf; Rossell, Marta D.; Kisielowski, Christian; Dahmen, Ulrich] Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RP Erni, R (reprint author), Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RI Erni, Rolf/P-7435-2014; Rossell, Marta/E-9785-2017
OI Erni, Rolf/0000-0003-2391-5943;
FU Department of Energy, Office of Science, Basic Energy Sciences; Office
of Science, Office of Basic Energy Sciences of the U.S. Department of
Energy [DE-AC02 05CH11231]
FX The TEAM project is supported by the Department of Energy, Office of
Science, Basic Energy Sciences. This work was performed at NCEM, which
is supported by the Office of Science, Office of Basic Energy Sciences
of the U.S. Department of Energy under Contract No. DE-AC02 05CH11231.
NR 18
TC 177
Z9 180
U1 11
U2 97
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 MAR 6
PY 2009
VL 102
IS 9
AR 096101
DI 10.1103/PhysRevLett.102.096101
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900037
PM 19392535
ER
PT J
AU Ito, TU
Higemoto, W
Ohishi, K
Nishida, N
Heffner, RH
Aoki, Y
Amato, A
Onimaru, T
Suzuki, HS
AF Ito, T. U.
Higemoto, W.
Ohishi, K.
Nishida, N.
Heffner, R. H.
Aoki, Y.
Amato, A.
Onimaru, T.
Suzuki, H. S.
TI Quantized Hyperfine Field at an Implanted mu(+) Site in PrPb3: Interplay
between Localized f Electrons and an Interstitial Charged Particle
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID MUON KNIGHT-SHIFT; STATE; CE
AB The local effect of an interstitial hydrogenlike particle on localized f electrons was studied in PrPb3 by means of mu(+) spin rotation and relaxation. Spontaneous mu(+) spin precession with harmonic frequencies was observed for the first time in f electron compounds. We demonstrate that the signal is derived from a coupling between the mu(+) spin and the hyperfine-enhanced nuclear spin of nearest neighbor (NN) Pr-141 with Ising-like anisotropy. The signal also suggests a marked suppression of spin dynamics of the NN Pr-141 in comparison with that of the bulk Pr-141. These facts strongly indicate modification of the f electronic state due to the interstitial charged particle.
C1 [Ito, T. U.; Nishida, N.] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan.
[Ito, T. U.; Higemoto, W.; Ohishi, K.; Heffner, R. H.] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.
[Heffner, R. H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Aoki, Y.] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan.
[Amato, A.] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland.
[Onimaru, T.] Hiroshima Univ, ADSM, Dept Quantum Matter, Hiroshima 7398530, Japan.
[Suzuki, H. S.] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan.
RP Ito, TU (reprint author), Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan.
RI Ohishi, Kazuki/E-9592-2010; Onimaru, Takahiro/M-4413-2013; Aoki,
Yuji/E-5494-2015; Amato, Alex/H-7674-2013;
OI Ohishi, Kazuki/0000-0003-1494-6502; Aoki, Yuji/0000-0002-0957-3396;
Amato, Alex/0000-0001-9963-7498; Ito, Takashi/0000-0003-1971-4313
FU Scientific Research on Priority Area "Skutterudite'', Ministry of
Education, Culture, Sports, Science and Technology, Japan; KEK-MSL
Inter-University Program for Oversea Muon Facilities, and 21st Century
COE Program; Tokyo Tech Nanometer-Scale Quantum Physics.
FX We thank staff of the muon facilities for experimental assistance, as
well as Professors H. Shiba, H. Ishii, K. Nishiyama, Drs. S. Kambe, Y.
Tokunaga, H. Sakai, H. Chudo, and T. D. Matsuda for helpful discussions.
This work was supported by a Grant-in-Aid for Scientific Research on
Priority Area "Skutterudite'', Ministry of Education, Culture, Sports,
Science and Technology, Japan, KEK-MSL Inter-University Program for
Oversea Muon Facilities, and 21st Century COE Program at Tokyo Tech
"Nanometer-Scale Quantum Physics.''
NR 16
TC 9
Z9 9
U1 1
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 MAR 6
PY 2009
VL 102
IS 9
AR 096403
DI 10.1103/PhysRevLett.102.096403
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900042
PM 19392540
ER
PT J
AU Jeong, HK
Noh, HJ
Kim, JY
Colakerol, L
Glans, PA
Jin, MH
Smith, KE
Lee, YH
AF Jeong, H. -K.
Noh, H. -J.
Kim, J. -Y.
Colakerol, L.
Glans, P. -A.
Jin, M. H.
Smith, K. E.
Lee, Y. H.
TI Comment on "Near-Edge X-Ray Absorption Fine-Structure Investigation of
Graphene"
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
ID GRAPHITE OXIDES
AB A Comment on the Letter by D. Pacile et al., Phys. Rev. Lett. 101, 066806 (2008). The authors of the Letter offer a Reply.
C1 [Jeong, H. -K.; Jin, M. H.; Lee, Y. H.] Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostructured Composites, Dept Energy Sci, Dept Phys, Suwon 440746, South Korea.
[Noh, H. -J.] Chonnam Natl Univ, Dept Phys, Kwangju 500757, South Korea.
[Kim, J. -Y.] POSTECH, Pohang Accelerator Lab, Pohang 790784, South Korea.
[Kim, J. -Y.] POSTECH, Dept Phys, Pohang 790784, South Korea.
[Colakerol, L.; Smith, K. E.] Boston Univ, Dept Phys, Boston, MA 02215 USA.
[Glans, P. -A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Jeong, HK (reprint author), Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostructured Composites, Dept Energy Sci, Dept Phys, Suwon 440746, South Korea.
EM leeyoung@skku.edu
RI Lee, Young Hee/A-5424-2013; Glans, Per-Anders/G-8674-2016
NR 6
TC 45
Z9 46
U1 4
U2 20
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 MAR 6
PY 2009
VL 102
IS 9
AR 099701
DI 10.1103/PhysRevLett.102.099701
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900073
PM 19392571
ER
PT J
AU Konik, RM
Adamov, Y
AF Konik, Robert M.
Adamov, Yury
TI Renormalization Group for Treating 2D Coupled Arrays of Continuum 1D
Systems
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DENSITY-MATRIX RENORMALIZATION; MAGNETIC-FIELD; ISING-MODEL
AB We study the spectrum of two dimensional coupled arrays of continuum one-dimensional systems by wedding a density matrix renormalization group procedure to a renormalization group improved truncated spectrum approach. To illustrate the methodology, we study the spectrum of large arrays of coupled quantum Ising chains. We demonstrate explicitly that the method can treat the various regimes of chains, in particular, the three dimensional Ising ordering transition the chains undergo as a function of interchain coupling.
C1 [Konik, Robert M.] Brookhaven Natl Lab, CMPMS Dept, Upton, NY 11973 USA.
[Adamov, Yury] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
RP Konik, RM (reprint author), Brookhaven Natl Lab, CMPMS Dept, Upton, NY 11973 USA.
RI Konik, Robert/L-8076-2016
OI Konik, Robert/0000-0003-1209-6890
FU U.S. DOE [DE-AC02-98 CH 10886]
FX R. M. K. and Y. A. acknowledge support from the U.S. DOE (DE-AC02-98 CH
10886) and useful discussions with A. Tsvelik.
NR 20
TC 15
Z9 15
U1 0
U2 0
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 MAR 6
PY 2009
VL 102
IS 9
AR 097203
DI 10.1103/PhysRevLett.102.097203
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900061
PM 19392559
ER
PT J
AU Pacile, D
Papagno, M
Rodriguez, AF
Grioni, M
Papagno, L
Girit, CO
Meyer, JC
Begtrup, GE
Zettl, A
AF Pacile, D.
Papagno, M.
Rodriguez, A. Fraile
Grioni, M.
Papagno, L.
Girit, C. Oe.
Meyer, J. C.
Begtrup, G. E.
Zettl, A.
TI Comment on "Quantum Key Distribution with Classical Bob'' Reply
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
ID GRAPHITE; STATES
AB A Reply to the Comment by Hae-Kyung Jeong et al.
C1 [Pacile, D.; Papagno, M.; Papagno, L.] Univ Calabria, Ist Nazl Fis Nucl, I-87036 Cosenza, Italy.
[Pacile, D.; Papagno, M.; Papagno, L.] Univ Calabria, Dipartimento Fis, I-87036 Cosenza, Italy.
[Rodriguez, A. Fraile] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland.
[Grioni, M.] Ecole Polytech Fed Lausanne, IPN, CH-1015 Lausanne, Switzerland.
[Girit, C. Oe.; Meyer, J. C.; Begtrup, G. E.; Zettl, A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Girit, C. Oe.; Meyer, J. C.; Begtrup, G. E.; Zettl, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Pacile, D (reprint author), Univ Calabria, Ist Nazl Fis Nucl, I-87036 Cosenza, Italy.
RI Fraile Rodriguez, Arantxa/A-2446-2009; Girit, Caglar/D-4845-2014; Zettl,
Alex/O-4925-2016;
OI Fraile Rodriguez, Arantxa/0000-0003-2722-0882; Girit,
Caglar/0000-0001-8953-9261; Zettl, Alex/0000-0001-6330-136X; Pacile,
Daniela/0000-0001-6219-3889; Papagno, Marco/0000-0003-2623-1563
NR 8
TC 14
Z9 14
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 MAR 6
PY 2009
VL 102
IS 9
AR 099702
DI 10.1103/PhysRevLett.102.099702
PG 1
WC Physics, Multidisciplinary
SC Physics
GA 415CM
UT WOS:000263911900074
ER
PT J
AU Wang, C
Peng, S
Chan, R
Sun, SH
AF Wang, Chao
Peng, Sheng
Chan, Ryan
Sun, Shouheng
TI Synthesis of AuAg Alloy Nanoparticles from Core/Shell-Structured Ag/Au
SO SMALL
LA English
DT Article
DE alloys; core/shell materials; gold; silver; surface plasmon resonance
ID AU-FE3O4 DUMBBELL NANOPARTICLES; GALVANIC REPLACEMENT REACTION; SILVER
NANOPARTICLES; GOLD NANOPARTICLES; PHASE SYNTHESIS; AG; SHAPE;
NANOCRYSTALS; CHEMISTRY; CATALYSIS
C1 [Wang, Chao; Peng, Sheng; Chan, Ryan; Sun, Shouheng] Brown Univ, Dept Chem, Providence, RI 02912 USA.
RP Wang, C (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM chaowang@anl.gov; ssun@brown.edu
RI Peng, Sheng/E-7988-2010; Wang, Chao/F-4558-2012
OI Wang, Chao/0000-0001-7398-2090
FU NSF/DMR [0606264]; Brown University Seed Fund
FX This work was supported by NSF/DMR 0606264 and the Brown University Seed
Fund.
NR 32
TC 79
Z9 80
U1 6
U2 112
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 MAR 6
PY 2009
VL 5
IS 5
BP 567
EP 570
DI 10.1002/smll.200801169
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 427PP
UT WOS:000264791500005
PM 19189329
ER
PT J
AU Komarneni, M
Sand, A
Lu, M
Burghaus, U
AF Komarneni, M.
Sand, A.
Lu, M.
Burghaus, U.
TI Adsorption kinetics of small organic molecules on thick and thinner
layers of carbon nanotubes
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID CATALYSTS; AU(111); ALKANES
AB Using an ultra-high vacuum kinetics technique, we present unexpected experimental evidence that thick layers of carbon nanotubes (CNTs) show adsorption behavior that is kinetically distinct to that of thinner CNT films. Thick layers reveal much greater desorption temperatures (binding energies) for n-pentane and benzene compared to thinner CNT films. These results are significant in gaining an understanding of the interplay of kinetics and electronic effects as well as for applications in catalysis. (C) 2009 Elsevier B. V. All rights reserved.
C1 [Komarneni, M.; Sand, A.; Burghaus, U.] N Dakota State Univ, Dept Chem & Mol Biol, Fargo, ND 58105 USA.
[Lu, M.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Burghaus, U (reprint author), N Dakota State Univ, Dept Chem & Mol Biol, Fargo, ND 58105 USA.
EM uwe.burghaus@ndsu.edu
RI komarneni, mallikharjuna rao/E-1889-2015;
OI komarneni, mallikharjuna rao/0000-0002-3269-1606; Sand,
Andrew/0000-0002-7166-2066
FU Chemical Sciences, Geosciences, and Biosciences Division, Office of
Basic Energy Sciences, Office of Science, U.S. Department of Energy
[DE-AC02-06CH11357]
FX We acknowledge assistance of J. Goering (NDSU) with the initial stages
of the project as well as discussions with D. Neu (St Cloud State
University). Financial support from the Chemical Sciences, Geosciences,
and Biosciences Division, Office of Basic Energy Sciences, Office of
Science, U.S. Department of Energy is acknowledged by NDSU. The SEM
characterization at the Center for Nanoscale Materials (Argonne) was
financially supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-06CH11357.
NR 21
TC 5
Z9 5
U1 3
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 MAR 5
PY 2009
VL 470
IS 4-6
BP 300
EP 303
DI 10.1016/j.cplett.2009.02.002
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 413KJ
UT WOS:000263791700029
ER
PT J
AU Sharifzadeh, S
Huang, P
Carter, EA
AF Sharifzadeh, Sahar
Huang, Patrick
Carter, Emily A.
TI All-electron embedded correlated wavefunction theory for condensed
matter electronic structure
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID KONDO IMPURITY; EXCITED-STATES; BAND-STRUCTURE; DENSITY; SYSTEMS;
SURFACES; CHEMISORPTION; PSEUDOPOTENTIALS; SOLIDS
AB We present an extension of our embedded configuration interaction method [P. Huang, E. A. Carter, J. Chem. Phys. 125 (2006) 084102], which models localized phenomena in metallic crystals as a finite cluster, embedded in an effective potential derived from orbital-free density functional theory. Here we extend the previous pseudopotential implementation to a frozen core, all-electron description of the background. Benchmark studies of the all-electron formulation are presented and compared with pseudopotential-based embedding for a Cu(2) dimer in Cu(1 1 1) and a Co adatom on Cu(1 1 1). Although we find subtle differences between the two methods, the same conclusions are reached, thereby validating the new all-electron formulation. (C) 2009 Elsevier B. V. All rights reserved.
C1 [Carter, Emily A.] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA.
[Carter, Emily A.] Princeton Univ, Program Appl & Computat Math, Princeton, NJ 08544 USA.
[Huang, Patrick] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
[Sharifzadeh, Sahar] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
RP Carter, EA (reprint author), Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA.
EM eac@princeton.edu
RI Sharifzadeh, Sahar/L-9367-2013; Carter, Emily/P-4075-2014; Sharifzadeh,
Sahar/P-4881-2016;
OI Sharifzadeh, Sahar/0000-0003-4215-4668; Huang,
Patrick/0000-0003-4833-8134
FU Department of Energy, Basic Energy Sciences
FX We are grateful to the Department of Energy, Basic Energy Sciences for
support of this research.
NR 46
TC 23
Z9 23
U1 1
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 MAR 5
PY 2009
VL 470
IS 4-6
BP 347
EP 352
DI 10.1016/j.cplett.2009.01.072
PG 6
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 413KJ
UT WOS:000263791700038
ER
PT J
AU Govind, N
Sushko, PV
Hess, WP
Valiev, M
Kowalski, K
AF Govind, N.
Sushko, P. V.
Hess, W. P.
Valiev, M.
Kowalski, K.
TI Excitons in potassium bromide: A study using embedded time-dependent
density functional theory and equation-of-motion coupled cluster methods
SO CHEMICAL PHYSICS LETTERS
LA English
DT Article
ID EFFECTIVE CORE POTENTIALS; MOLECULAR CALCULATIONS; EXCITATION-ENERGIES;
ELECTRONIC STATES; FULL EOMCCSDT; SURFACE; PSEUDOPOTENTIALS; ELEMENTS;
MODEL; ATOMS
AB We present a study of the lowest surface and bulk excitations of the well-studied potassium bromide (KBr) system using an embedded cluster method. The excited states of the embedded cluster are studied systematically using time-dependent density functional theory (TDDFT) and high-level equation-of-motion coupled cluster (EOMCC) methods. In particular, we have used EOMCC models with singles and doubles (EOMCCSD) and two approaches which account for the effect of triply excited configurations in non-iterative and iterative fashions. We compare and contrast the results between these theories as well as compare our results with experiment. The bulk-surface exciton shift is also calculated at the TDDFT level and compared with experiment. (C) 2009 Elsevier B. V. All rights reserved.
C1 [Govind, N.; Valiev, M.; Kowalski, K.] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA.
[Sushko, P. V.] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 980, Japan.
[Sushko, P. V.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Hess, W. P.] Pacific NW Natl Lab, Div Mat & Chem Sci, Richland, WA 99352 USA.
RP Govind, N (reprint author), Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, K8-91,POB 999, Richland, WA 99352 USA.
EM niri.govind@pnl.gov; karol.kowalski@pnl.gov
RI Govind, Niranjan/D-1368-2011; Sushko, Peter/F-5171-2013; Albe,
Karsten/F-1139-2011
OI Sushko, Peter/0000-0001-7338-4146;
FU Office of Biological and Environmental Research in the U. S. Department
of Energy [DE-AC06-76RLO-1830]; EMSL Intramural Program; Laboratory
Directed Research and Development Program; DOE Basic Energy Science
Division of Chemical Sciences; WPI-AIMR; Tohoku University; Royal
Society
FX We thank Professor Alex Shluger (UCL) for helpful discussions. This work
has been performed using the Molecular Science Computing Facility (MSCF)
in the William R. Wiley Environmental Molecular Sciences Laboratory
(EMSL) at the Pacific Northwest National Laboratory. The William R.
Wiley Environmental Molecular Sciences Laboratory at the Pacific
Northwest National Laboratory is funded by the Office of Biological and
Environmental Research in the U. S. Department of Energy. The Pacific
Northwest National Laboratory is operated for the U. S. Department of
Energy by the Battelle Memorial Institute under Contract
DE-AC06-76RLO-1830. N.G. and K. K. gratefully acknowledge support from
the EMSL Intramural Program 2008. The effort leading to a better
scalability of the CCSD, EOMCCSD, and CR-EOMCCSD(T) approaches was
supported by the Laboratory Directed Research and Development Program at
the Pacific Northwest National Laboratory (K. K.). Support to M. V. from
the Advanced Scientific Computing Research program of the U. S.
Department of Energy, Office of Science (DE-AC06-76RLO 1830) and DOE
Basic Energy Science Division of Chemical Sciences is also gratefully
acknowledged. W. P. H. is supported by the DOE Basic Energy Science
Division of Chemical Sciences. P. V. S. is supported by the WPI-AIMR,
Tohoku University, and Royal Society.
NR 50
TC 25
Z9 25
U1 0
U2 13
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 MAR 5
PY 2009
VL 470
IS 4-6
BP 353
EP 357
DI 10.1016/j.cplett.2009.01.073
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 413KJ
UT WOS:000263791700039
ER
PT J
AU Takahashi, K
Tezuka, H
Satoh, T
Katsumura, Y
Watanabe, M
Crowell, RA
Wishart, JF
AF Takahashi, Kenji
Tezuka, Hiroaki
Satoh, Toshifumi
Katsumura, Yosuke
Watanabe, Masayoshi
Crowell, Robert A.
Wishart, James F.
TI Kinetic Salt Effects on an Ionic Reaction in Ionic Liquid/Methanol
Mixtures-Viscosity and Coulombic Screening Effects
SO CHEMISTRY LETTERS
LA English
DT Article
ID SOLVENT-FREE; SOLAR-CELLS; LIQUIDS
AB The kinetic salt effect on the disproportionation reaction between diiodide anions in methanol has been examined using two ionic liquids and one inorganic salt. The ionic reaction was accelerated significantly, depending on the cation of the salt, and the ionic liquids enhanced the reaction more effectively. At higher concentrations the reaction rates decrease owing to increasing viscosities.
C1 [Takahashi, Kenji; Tezuka, Hiroaki] Kanazawa Univ, Grad Sch Nat Sci & Technol, Div Mat Sci, Kanazawa, Ishikawa 9201192, Japan.
[Satoh, Toshifumi] Hokkaido Univ, Grad Sch Engn, Div Biotechnol & Macromol Chem, Sapporo, Hokkaido 0608628, Japan.
[Katsumura, Yosuke] Univ Tokyo, Sch Engn, Dept Nucl Engn & Management, Tokyo 1138656, Japan.
[Watanabe, Masayoshi] Yokohama Natl Univ, Dept Chem & Biotechnol, Yokohama, Kanagawa 2408501, Japan.
[Crowell, Robert A.; Wishart, James F.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Takahashi, K (reprint author), Kanazawa Univ, Grad Sch Nat Sci & Technol, Div Mat Sci, Kanazawa, Ishikawa 9201192, Japan.
EM ktkenji@t.kanazawa-u.ac.jp
RI Satoh, Toshifumi/A-5316-2012; Takahashi, Kenji/C-8846-2011; Wishart,
James/L-6303-2013; Takahashi, Kenji/F-4885-2014
OI Wishart, James/0000-0002-0488-7636;
FU Ministry of Education, Culture, Sports, Science and Technology (MEXT) of
Japan; U.S. Department of Energy Office of Science, Division of Chemical
Sciences [DE-AC02-98CH10886]
FX This work was supported by a Grant-in-Aid for Scientific Research
(Priority Area 452 "Science of Ionic Liquids") from the Ministry of
Education, Culture, Sports, Science and Technology (MEXT) of Japan. The
work at Brookhaven National Laboratory was supported by the U.S.
Department of Energy Office of Science, Division of Chemical Sciences,
under contract DE-AC02-98CH10886.
NR 7
TC 5
Z9 5
U1 1
U2 8
PU CHEMICAL SOC JAPAN
PI TOKYO
PA 1-5 KANDA-SURUGADAI CHIYODA-KU, TOKYO, 101-8307, JAPAN
SN 0366-7022
EI 1348-0715
J9 CHEM LETT
JI Chem. Lett.
PD MAR 5
PY 2009
VL 38
IS 3
BP 236
EP 237
DI 10.1246/cl.2009.236
PG 2
WC Chemistry, Multidisciplinary
SC Chemistry
GA 432VW
UT WOS:000265163400020
ER
PT J
AU Bickmore, BR
Rosso, KM
Brown, ID
Kerisit, S
AF Bickmore, Barry R.
Rosso, Kevin M.
Brown, I. David
Kerisit, Sebastien
TI Bond-Valence Constraints on Liquid Water Structure
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; RAY-ABSORPTION SPECTROSCOPY; 1ST PRINCIPLES
SIMULATIONS; MOLECULAR-DYNAMICS METHOD; H...O HYDROGEN-BONDS; AB-INITIO;
POTENTIAL FUNCTIONS; CANONICAL ENSEMBLE; MODEL; ICE
AB The recent controversy about the structure of liquid water pits a new model involving water molecules in relatively stable "rings-and-chains" structures against the standard model that posits water molecules in distorted tetrahedral coordination. Molecular dynamics (MD) simulations, both classical and ab initio, almost uniformly support the standard model, but because none of them can yet reproduce all of the anomalous properties of water, they leave room for doubt. We argue that it is possible to evaluate these simulations by testing them against their adherence to the bond-valence model, a well-known and quantitatively accurate empirical summary of the behavior of atoms in the bonded networks of inorganic solids. Here we use the results of ab initio MD simulations of ice, water, and several solvated aqueous species to show that the valence sum rule (the first axiom of the bond-valence model) is followed in both solid and liquid bond networks. We then test MD simulations of water, employing several popular potential models against this criterion and the experimental O-O RDF. It appears that most of those tested cannot satisfy both criteria well, except TIP4P, TIP4P/2005, and TIP5P. If the valence sum rule really can be applied to simulated liquid structures, then it follows that the bonding behaviors of atoms in liquids are in some ways identical to those in solids. We support this interpretation by showing that the simulations produce O-H center dot center dot center dot O geometries that are completely consistent with the range of geometries available in solids, and the distributions of instantaneous valence sums reaching the atoms in both the ice and liquid water simulations are essentially identical. Furthermore, we show that none of the extant asymmetric water potentials that produce "rings-and-chains" structures can satisfy our geometric criteria. Taken together, this is powerful evidence in favor of the standard distorted tetrahedral model of liquid water structure.
C1 [Bickmore, Barry R.] Brigham Young Univ, Dept Geol Sci, Provo, UT 84097 USA.
[Rosso, Kevin M.; Kerisit, Sebastien] Pacific NW Natl Lab, Div Mat Sci, Richland, WA 99352 USA.
[Rosso, Kevin M.; Kerisit, Sebastien] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
[Brown, I. David] McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada.
RP Bickmore, BR (reprint author), Brigham Young Univ, Dept Geol Sci, Provo, UT 84097 USA.
EM barry_bickmore@byu.edu
FU National Science Foundation [EAR-0525340]; U.S. Department of Energy's
(DOE) Office of Biologic and Environmental Research (OBER); DOE Office
of Basic Energy Sciences (OBES) Geosciences Program
FX B.R.B. thanks the National Science Foundation (grant EAR-0525340) for
supporting this work. A portion of this research was performed at EMSL,
a national scientific user facility sponsored by the U.S. Department of
Energy's (DOE) Office of Biologic and Environmental Research (OBER).
K.M.R. acknowledges support from the DOE Office of Basic Energy Sciences
(OBES) Geosciences Program and from the OBER for the Stanford
Environmental Molecular Sciences Institute. Professor T. Head-Gordon
kindly provided the output from a key MD simulation, and Professor A.
Soper provided some helpful information about his work cited here. We
also thank Johannes Lutzenkirchen for providing the initial idea for
this project and two anonymous reviewers for helping us improve the
manuscript.
NR 78
TC 13
Z9 13
U1 0
U2 13
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 MAR 5
PY 2009
VL 113
IS 9
BP 1847
EP 1857
DI 10.1021/jp810364t
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 412NU
UT WOS:000263732300023
PM 19199492
ER
PT J
AU Shen, X
Allen, PB
Hybertsen, MS
Muckerman, JT
AF Shen, Xiao
Allen, Philip B.
Hybertsen, Mark S.
Muckerman, James T.
TI Water Adsorption on the GaN (10(1)over-bar0) Nonpolar Surface
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; DENSITY-FUNCTIONAL THEORY; MINIMUM
ENERGY PATHS; ELASTIC BAND METHOD; GALLIUM NITRIDE; HIGH-PRESSURE;
SADDLE-POINTS; LIQUID WATER; ALPHA-GAN; DISLOCATIONS
AB We present a first-principles study of water adsorption on a wurtzite GaN (10 (1) over bar0) surface. We studied the structures and energetics of water adsorption, calculated the energy barrier for water dissociation, and analyzed the water-water interactions. The results are very different from water adsorption on ZnO (10 (1) over bar0). Water is found to adsorb dissociatively; the energy barrier for the dissociation is negligible. As a result of substrate strain-mediated interactions and hydrogen bonding, dense island agglomerates are energetically favored at submonolayer water coverage.
C1 [Shen, Xiao; Hybertsen, Mark S.; Muckerman, James T.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Shen, Xiao; Allen, Philip B.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
[Muckerman, James T.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Muckerman, JT (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
EM muckerma@bnl.gov
RI Muckerman, James/D-8752-2013
NR 35
TC 25
Z9 25
U1 3
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 MAR 5
PY 2009
VL 113
IS 9
BP 3365
EP 3368
DI 10.1021/jp809499d
PG 4
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200001
ER
PT J
AU Kwon, KY
Wang, E
Chung, A
Chang, N
Lee, SW
AF Kwon, Ki-Young
Wang, Eddie
Chung, Alice
Chang, Neil
Lee, Seung-Wuk
TI Effect of Salinity on Hydroxyapatite Dissolution Studied by Atomic Force
Microscopy
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID CALCIUM HYDROXYAPATITE; CRYSTAL; BONE; FLUORAPATITE; SURFACE; GROWTH;
OSTEOPOROSIS; MECHANISM; KINETICS; ENAMEL
AB The complexity of bone tissue and the lack of techniques for directly probing bone surfaces in vivo have hindered studies on the fundamental mechanisms of bone mineral remodeling. Here, we addressed these issues by using single crystal hydroxyapatite (HAP) as a well-defined bone surface model and directly observe its surface using in situ atomic force microscopy. Specifically, we investigated the effects of NaCl concentration on the dissolution of HAP (100) surfaces and found that NaCl strongly suppressed HAP dissolution kinetics, including at physiological ion concentrations. These findings indicate that local ion concentrations in vivo may contribute significantly to the stability of bone mineral. Moreover, our analysis of HAP surfaces over a broad range of pH conditions suggests that only one kind of surface termination exists exclusively in the solutions we used. This observation is important for understanding the surface chemistry of HAP. Our molecular level, real-time observations of HAP dissolution are significant for understanding bone resorption and provide useful insights for the design of novel therapies for treating osteoporosis and other bone related diseases.
C1 [Kwon, Ki-Young; Wang, Eddie; Chung, Alice; Chang, Neil; Lee, Seung-Wuk] Univ Calif Berkeley, Dept Bioengn, Phys Biosci Div,Berkeley Nanosci & Nanoengn Inst, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Lee, SW (reprint author), Univ Calif Berkeley, Dept Bioengn, Phys Biosci Div,Berkeley Nanosci & Nanoengn Inst, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM leesw@berkeley.edu
OI Wang, Eddie/0000-0002-9814-0102
NR 32
TC 24
Z9 25
U1 2
U2 6
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 MAR 5
PY 2009
VL 113
IS 9
BP 3369
EP 3372
DI 10.1021/jp810414z
PG 4
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200002
ER
PT J
AU Chang, CL
Sankaranarayanan, SKRS
Engelhard, MH
Shutthanandan, V
Ramanathan, S
AF Chang, Chia-Lin
Sankaranarayanan, Subramanian K. R. S.
Engelhard, Mark H.
Shutthanandan, V.
Ramanathan, Shriram
TI On the Relationship between Nonstoichiometry and Passivity Breakdown in
Ultrathin Oxides: Combined Depth-Dependent Spectroscopy, Mott-Schottky
Analysis, and Molecular Dynamics Simulation Studies
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID CORROSION PASSIVATION LAYER; LOW-TEMPERATURE OXIDATION; 304
STAINLESS-STEEL; POINT-DEFECT MODEL; ASSISTED OXIDATION; PIT INITIATION;
IMPEDANCE MEASUREMENTS; TRANSITION-METALS; POSITRON LIFETIME; ATOMIC
OXYGEN
AB Understanding the relationship between nonstoichiometry and physical properties of ultrathin oxides is of great importance from both scientific and technological aspects. A specific example includes the onset of passivity breakdown in an ultrathin oxide film in aqueous medium leading to the onset of corrosion. In this work, using the model system of ultrathin oxide of alumina on aluminum synthesized by natural oxidation and photon-assisted oxidation processes, we demonstrate a direct correlation between passivity and quality of the oxide film quantitatively. Depth-dependent high-resolution X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and nuclear reaction analysis (NRA) have been performed to characterize the physical and chemical properties of the oxide films, while detailed impedance measurements and Mott-Schottky studies have been performed to understand electronic transport. Combined NRA and TEM analysis reveal an 18% increase in oxygen density (for oxide films with near identical thicknesses similar to 3.8 nm) in the case of photon-assisted oxidation. The denser oxide film results in a similar to 34% more blockage of chloride ions transport as indicated by XPS analysis. Mott-Schottky measurements on these oxide films indicates a 43% reduction of defect levels for UV-synthesized alumina when compared to native one, suggestive of chloride ion transport via oxygen vacancies. Additionally, molecular dynamics simulations have been performed to provide insights into the structure of the oxides at the atomic level to correlate with the experimental measurements. These simulations employ dynamic charge transfer between atoms and are used to investigate nanoscale oxides grown on Al (100) surfaces because of atomic and molecular oxygen. Oxidation using molecular and atomic oxygen resulted in an amorphous oxide scale with self-limiting thickness of similar to 16 and 22 A, respectively, at 300 K. Structural and dynamic correlations indicate significant charge transfer to exist in the oxide film in both the cases. The oxide growth in both the cases occurs due to the inward oxygen and outward cation diffusion. The calculated in-plane and out-of-plane atomic diffusivities are 40-70% higher in case of atomic oxidation. In the presence of atomic oxygen, the O/Al ratio is more uniform and varies from 1.37 at the oxide-gas interface to 1.30 at the metal-oxide interface, whereas that formed by natural oxidation was substoichiometric and oxygen deficient with O/Al values varying from 1.27 (oxide-gas interface) to 1.05 (metal-oxide interface) at room temperature. The simulation results are consistent with the reported experimental investigations.
C1 [Chang, Chia-Lin; Sankaranarayanan, Subramanian K. R. S.; Ramanathan, Shriram] Harvard Univ, Harvard Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Engelhard, Mark H.; Shutthanandan, V.] Pacific NW Natl Lab, WR Wile Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Chang, CL (reprint author), Harvard Univ, Harvard Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
EM clchang@fas.harvard.edu
RI Engelhard, Mark/F-1317-2010;
OI Engelhard, Mark/0000-0002-5543-0812
FU Department of Energy's Office of Biological and Environmental Research;
Office of Naval Research
FX The authors acknowledge Hongtao Wang for assistance with TEM sample
preparation and imaging. The authors gratefully acknowledge the
computational facilities provided by CNS-NNIN at Harvard University and
the research computing core at University of South Florida. Authors also
thank Julian Gale for providing the molecular dynamics code GULP 3.1 and
Will Smith for providing DL - POLY 2.14, which are modified and used in
the current research. The XPS and NRA experiments were performed at the
W.R. Wiley Environmental Molecular Sciences Laboratory, 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. Financial support from the Office of
Naval Research is gratefully acknowledged.
NR 92
TC 19
Z9 19
U1 6
U2 24
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 MAR 5
PY 2009
VL 113
IS 9
BP 3502
EP 3511
DI 10.1021/jp808424g
PG 10
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200023
ER
PT J
AU Ilan, B
Florio, GA
Werblowsky, TL
Muller, T
Hybertsen, MS
Berne, BJ
Flynn, GW
AF Ilan, Boaz
Florio, Gina A.
Werblowsky, Tova L.
Mueller, Thomas
Hybertsen, Mark S.
Berne, B. J.
Flynn, George W.
TI Solvent Effects on the Self-Assembly of 1-Bromoeicosane on Graphite.
Part II. Theory
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SCANNING-TUNNELING-MICROSCOPY; LIQUID-SOLID INTERFACE; IMAGE-CONTRAST;
INDUCED POLYMORPHISM; AU(111) SURFACES; NORMAL-ALKANE; STM IMAGES;
N-HEXANE; MONOLAYERS; MOLECULES
AB The phase ordering of 1-bromoeicosane (C20H41Br) at the liquid-graphite and vacuum-graphite interfaces is examined through a joint experimental (part I) and theoretical effort (part II). The stable morphologies under solvent and ultrahigh vacuum conditions are revealed by STM experiments to be the head-to-head structures with 90 degrees and 60 degrees lamella-backbone angles, respectively. At 90 degrees and 60 degrees close packing is attained, independent of the corrugation of the graphite lattice. The potential energy of the minimized 60 degrees structure is slightly lower than that of the 90 degrees structure under vacuum conditions. In addition, the basin of the potential energy surface about the 90 degrees form is very narrow. All-atom molecular dynamics simulations depict a 90 degrees-to-60 degrees phase transition in vacuum. Both morphologies are stable when an explicit solvent model is included. We speculate that the choice of the 90 degrees form under solvent is driven by symmetry considerations and the self-assembly pathway. For example, the 90 degrees structure may serve as a superior template for solvent capping. An implicit solvent model fails to stabilize the 90 degrees form; however, it does lower the potential energy of this structure relative to the 60 degrees geometry.
C1 [Ilan, Boaz; Werblowsky, Tova L.; Mueller, Thomas; Berne, B. J.; Flynn, George W.] Columbia Univ, Dept Chem, New York, NY 10027 USA.
[Ilan, Boaz; Florio, Gina A.; Werblowsky, Tova L.; Mueller, Thomas; Flynn, George W.] Columbia Univ, Ctr Electron Transport Mol Nanostruct, New York, NY 10027 USA.
[Florio, Gina A.] St Johns Univ, Dept Chem, Queens, NY 11439 USA.
[Florio, Gina A.] St Johns Univ, Dept Phys, Queens, NY 11439 USA.
[Hybertsen, Mark S.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
RP Berne, BJ (reprint author), Columbia Univ, Dept Chem, New York, NY 10027 USA.
EM bb8@columbia.edu; gwfl@columbia.edu
OI Hybertsen, Mark S/0000-0003-3596-9754
FU National Science Foundation [CHE-06-13401, CHE-07-01483]; NSEC Program
[CHE-06-41523]; New York State Office of Science, Technology, and
Academic Research (NYSTAR); U.S. Department of Energy at Brookhaven
National Laboratory [DE-AC02-98CH10886]; Clare Boothe Luce Program of
the Henry Luce Foundation, Inc.
FX We would like to thank Harry A. Stern and David Rinaldo for stimulating
discussions. This work was supported by the National Science Foundation
under Grants CHE-06-13401 (to B.J.B.) and CHE-07-01483 (to G.W.F.), by
the NSEC Program under Grant CHE-06-41523, by the New York State Office
of Science, Technology, and Academic Research (NYSTAR), by the U.S.
Department of Energy at Brookhaven National Laboratory
(DE-AC02-98CH10886 to M.S.H) and by the Clare Boothe Luce Program of the
Henry Luce Foundation, Inc. (to G.M.F.).
NR 54
TC 8
Z9 8
U1 0
U2 6
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 MAR 5
PY 2009
VL 113
IS 9
BP 3641
EP 3649
DI 10.1021/jp809218r
PG 9
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200042
ER
PT J
AU Chen, H
Wen, W
Wang, Q
Hanson, JC
Muckerman, JT
Fujita, E
Frenkel, AI
Rodriguez, JA
AF Chen, Haiyan
Wen, Wen
Wang, Qi
Hanson, Jonathan C.
Muckerman, James T.
Fujita, Etsuko
Frenkel, Anatoly I.
Rodriguez, Jose A.
TI Preparation of (Ga1-xZnx)(N1-xOx) Photocatalysts from the Reaction of
NH3 with Ga2O3/ZnO and ZnGa2O4: In Situ Time-Resolved XRD and XAFS
Studies
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID ABSORPTION FINE-STRUCTURE; RAY-POWDER DIFFRACTION; VISIBLE-LIGHT-DRIVEN;
SOLID-SOLUTION PHOTOCATALYST; MIXED-OXIDE NANOPARTICLES; GALLIUM OXIDE;
OXYNITRIDE PHOTOCATALYST; CORE/SHELL NANOPARTICLES; HYDROGEN-PRODUCTION;
CRYSTAL-STRUCTURE
AB Gallium zinc oxynitrides (Ga1-xZnx)(N1-xOx) are important due to their visible-light photocatalytic activity. Using in situ time-resolved X-ray diffraction (XRD), we have monitored the formation of wurtzite (Ga1-xZnx)(N1-xOx) compounds during the solid-state reaction of NH3 with Ga2O3/ZnO mixtures or a ZnGa2O4 spinel. The ZnGa2O4 spinel was found to be a key intermediate in the formation of (Ga1-xZnx)(N1-xOx) and imposes a limit on the zinc content in the gallium zinc oxynitrides. Furthermore, after its formation, a wurtzite (Ga2/3Zn1/3)(N2/3O1/3) phase evolves to (Ga0.9Zn0.1)(N0.9O0.1) with increasing nitridation reaction time as a result of the removal of Zn and O atoms from the system. Once (Ga2/3Zn1/3)(N2/3O1/3) is formed, one must minimize exposure of the compound to NH3. Zinc and gallium K-edge X-ray absorption fine structure (XAFS) data revealed that the local structures around gallium and zinc atoms in the (Ga1-xZnx)(N1-xOx) systems are similar to those of GaN and ZnO, respectively, with relatively minor distortions in the Ga-N and Zn-O bond lengths. The Zn-O/N bonds prefer to align along the c-axis of the lattice, in agreement with the findings of DFT calculations reported in the literature. The corresponding Zn K-edge XANES spectra of (Ga1-xZnx)(N1-xOx) display a position red-shifted toward lower energies by similar to 0.5 eV with respect to that of ZnO, indicating a lower oxidation state of Zn in (Ga1-xZnx)(N1-xOx). N K-edge NEXAFS data show that the bonding geometry and electronic properties of the nitrogen atoms in (Ga1-xZnx)(N1-xOx) are similar to those in GaN. However, the O K-edge spectra exhibit a pre-edge feature not seen for ZnO or Ga2O3. This unique property of the oxygen atoms in (Ga1-xZnx)(N1-xOx) may be related to the existence of holes and affect visible light absorption and surface chemistry.
C1 [Chen, Haiyan; Wen, Wen; Hanson, Jonathan C.; Muckerman, James T.; Fujita, Etsuko; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Muckerman, James T.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA.
[Wang, Qi; Frenkel, Anatoly I.] Yeshiva Univ, Dept Phys, New York, NY 10016 USA.
RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM rodrigez@bnl.gov
RI Frenkel, Anatoly/D-3311-2011; Wang, Qi/C-5478-2012; Chen,
Haiyan/C-8109-2012; Muckerman, James/D-8752-2013; Fujita,
Etsuko/D-8814-2013; Hanson, jonathan/E-3517-2010
OI Frenkel, Anatoly/0000-0002-5451-1207;
FU U.S. Department of Energy, Division of Chemical Sciences
[DE-AC02-98CH10086]; U.S. DOE [DE-FG02-03ER15476]; Synchrotron Catalysis
Consortium [DE-FG0205ER15688]; Divisions of Materials and Chemical
Sciences of DOE
FX The research carried out at the Chemistry Department of Brookhaven
National Laboratory was funded by the U.S. Department of Energy,
Division of Chemical Sciences (Contract Number: DE-AC02-98CH10086). This
work is part of a DOE BES Hydrogen Fuel Initiative Project entitled
"Catalyzed Water Oxidation by Solar Irradiation of Bang-GapNarrowed
Semiconductors." AIF and QW acknowledge support by U.S. DOE Grant No.
DE-FG02-03ER15476. Beamlines X18B and X19A are supported in part by the
Synchrotron Catalysis Consortium (U.S. DOE Grant No. DE-FG0205ER15688).
The NSLS is supported by the Divisions of Materials and Chemical
Sciences of DOE. The authors would like to thank Dr. Nebojsa Marinkovic
from the University of Delaware for help with the beamline operation.
NR 43
TC 39
Z9 40
U1 13
U2 73
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 MAR 5
PY 2009
VL 113
IS 9
BP 3650
EP 3659
DI 10.1021/jp804551p
PG 10
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200043
ER
PT J
AU Glezakou, VA
Dang, LX
AF Glezakou, Vassiliki-Alexandra
Dang, Liem X.
TI Spontaneous Activation of CO2 and Possible Corrosion Pathways on the
Low-Index Iron Surface Fe(100)
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID CARBON-DIOXIDE CORROSION; DISSOCIATIVE ADSORPTION; MECHANISTIC MODEL;
OXIDE INTERFACE; MILD-STEEL; CHEMISORPTION; CLEAVAGE; ENERGY; MONOXIDE;
HYDROGEN
AB Spin-polarized density functional theory (DFT) calculations and periodic slab models were used to study the reactive pathways leading to corrosion products on the low-index (100) surface of iron. We determined the binding energies of CO2 and the barrier to decomposition of adsorbed CO2 to O + CO, as well as to the formation of adsorbed CO32- and H2CO3 on the Fe(100) surface. The barriers of these pathways were determined with nudged elastic band (NEB) calculations. Short trajectories with DFT-based dynamics were employed to identify the most important species. These simulations (up to 0.5 ML coverage) show that CO2 is spontaneously activated and can bind with two or all three atoms assuming bent configurations strongly reminiscent of the radical CO2-. This spontaneous activation Of CO2 is possible through charge rearrangement of the slab density. The CO2 decomposition to O + CO has a barrier of 5.0 kcal/mol. The subsequent formation Of CO32- by reaction with an incoming CO2 is strongly favored thermodynamically. Interaction of H2O with the adsorbed CO2 forms a loosely bound complex that leads to the formation of surface-bound carbonic acid, with a barrier of approximately 35.0 kcal/mol.
C1 [Glezakou, Vassiliki-Alexandra; Dang, Liem X.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Div Chem & Mat Sci, Richland, WA 99352 USA.
RP Glezakou, VA (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Div Chem & Mat Sci, MS K1-83,POB 999, Richland, WA 99352 USA.
EM Vanda.Glezakou@pnl.gov
FU National Energy Technology Laboratory of DOE's Office of Fossil Energy
FX The computer resources were provided by the Division of Chemical and
Materials Sciences. V.-A.G. and B.P.M. gratefully acknowledge support
received from the National Energy Technology Laboratory of DOE's Office
of Fossil Energy. LXD. acknowledges support from the Division of
Chemical Sciences, Office of Basic Energy Sciences of the US DOE. The
authors thank Dr. R. Rousseau for a critical review of the manuscript
and useful discussions, as well as Dr. J. Jaffe, Dr. D. Mei and Dr. J.
A. Franz for helpful comments.
NR 55
TC 29
Z9 31
U1 5
U2 41
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 MAR 5
PY 2009
VL 113
IS 9
BP 3691
EP 3696
DI 10.1021/jp808296c
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200048
ER
PT J
AU Wu, ZL
Zhou, SH
Zhu, HG
Dai, S
Overbury, SH
AF Wu, Zili
Zhou, Shenghu
Zhu, Haoguo
Dai, Sheng
Overbury, Steven H.
TI DRIFTS-QMS Study of Room Temperature CO Oxidation on AU/SiO2 Catalyst:
Nature and Role of Different Au Species
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SUPPORTED GOLD NANOPARTICLES; DENSITY-FUNCTIONAL THEORY; WATER-GAS
SHIFT; MESOPOROUS SILICA; CARBON-MONOXIDE; AU/TIO2 CATALYSTS; FTIR;
ADSORPTION; TIO2; SIZE
AB The nature and role of different Au species on a AU/SiO2 catalyst in room temperature (rt) CO oxidation have been studied by operando diffuse reflectance infrared spectroscopy (DRIFT) coupled with quadruple mass spectrometry (QMS). It has shown that different pretreatments (oxidative and reductive) of Au/SiO2, have a significant effect on the nature of Au species and thus the CO oxidation performance. High temperature (500 degrees C) O-2-treatment leads to cationic Au species which is inactive for rt CO oxidation. Reductive treatment (either H-2 or CO) results in metallic Au species that are immediately active for rt CO oxidation. Furthermore, CO oxidation activity is found in good correlation with the reduction degree of Au species, a clear indication of the essential role of metallic Au species played in rt CO oxidation. The accompanying slight deactivation with the oxidation of metallic Au species on reductively treated Au/SiO2 in CO oxidation suggests that cationic Au species may play a negative role in rt CO oxidation. The effect of water in rt CO oxidation on Au/SiO2 was also investigated. Two positive roles played by water in CO oxidation have been identified: activation of O-2 and assistance the reduction of cationic Au species.
C1 [Wu, Zili] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
RP Wu, ZL (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM wuzl@ornl.gov; overburysh@ornl.gov
RI Wu, Zili/F-5905-2012; Overbury, Steven/C-5108-2016; Dai,
Sheng/K-8411-2015
OI Wu, Zili/0000-0002-4468-3240; Overbury, Steven/0000-0002-5137-3961; Dai,
Sheng/0000-0002-8046-3931
FU Office of Basic Energy Sciences; U.S. Department of Energ
[DE-AC05-000R22725]; Oak Ridge National Laboratory; UT-Battelle, LLC
FX This work was supported by the Office of Basic Energy Sciences, U.S.
Department of Energy, under contract DE-AC05-000R22725 with Oak Ridge
National Laboratory, managed and operated by UT-Battelle, LLC. 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 Us' er Facilities, U.S. Department of Energy. The
research was supported in part by the appointment for S.H.Z. and H.G.Z.
to the ORNL Research Associates Program, administered jointly by ORNL
and the Oak Ridge Associated Universities.
NR 58
TC 49
Z9 49
U1 3
U2 46
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 MAR 5
PY 2009
VL 113
IS 9
BP 3726
EP 3734
DI 10.1021/jp809220z
PG 9
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200053
ER
PT J
AU Jiang, DE
Dai, S
AF Jiang, De-en
Dai, Sheng
TI Diffusion of the Linear CH3S-Au-SCH3 Complex on Au(111) from First
Principles
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; SCANNING-TUNNELING-MICROSCOPY;
SELF-ASSEMBLED MONOLAYERS; TOTAL-ENERGY CALCULATIONS; THIOLATE-PROTECTED
AU-38; AUGMENTED-WAVE METHOD; C(4 X-2) STRUCTURE; GOLD NANOCLUSTERS;
CRYSTAL-STRUCTURE; BASIS-SET
AB Recent experimental and computational advances have clearly established the importance of the linear alkylthiolate-Au-alkylthiolate (RS-Au-SR) complex at the interface between the thiolate groups and the gold surface. By using density functional theory-based first principles method, here we show that the elementary diffusion step of this linear complex on Au(111) has a barrier of only similar to 0.5 eV in the case of methylthiolate, indicating great mobility of the linear complex on Au(111). The role of this low barrier in the formation of a self-assembled monolayer of thiolate groups in the form of RS-Au-SR on Au(111) is discussed.
C1 [Jiang, De-en; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Jiang, DE (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM jiangd@ornl.gov
RI Jiang, De-en/D-9529-2011; Dai, Sheng/K-8411-2015
OI Jiang, De-en/0000-0001-5167-0731; Dai, Sheng/0000-0002-8046-3931
FU U.S. Department of Energy [DE-AC05-000R22725, DE-AC02-05CH11231];
UT-Battelle, LLC; National Energy Research Scientific Computing Center;
Office of Basic Energy Sciences
FX This work was supported by the , U.S. Department of Energy, under
Contract No. DE-AC05-000R22725 with UT-Battelle, LLC. 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.Office of Basic Energy
Sciences
NR 38
TC 20
Z9 20
U1 0
U2 13
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 MAR 5
PY 2009
VL 113
IS 9
BP 3763
EP 3766
DI 10.1021/jp810404n
PG 4
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 412OD
UT WOS:000263733200058
ER
PT J
AU Cadoret, L
Reuge, N
Pannala, S
Syamlal, M
Rossignol, C
Dexpert-Ghys, J
Coufort, C
Caussat, B
AF Cadoret, L.
Reuge, N.
Pannala, S.
Syamlal, M.
Rossignol, C.
Dexpert-Ghys, J.
Coufort, C.
Caussat, B.
TI Silicon Chemical Vapor Deposition on macro and submicron powders in a
fluidized bed
SO POWDER TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT Symposium on Powder Science and Technology - Powders and Sintered
Material
CY MAY 23-25, 2007
CL Albi, FRANCE
DE Fluidized Bed; Chemical Vapor Deposition (CVD); Submicron powders;
Silicon; Process modelling
ID RAMAN-SPECTRA; CFD MODELS; PARTICLES; PYROLYSIS; SILANE; FLOW
AB Titanium oxide (TiO(2)) submicron powders have been treated by Chemical Vapor Deposition (CVD) in a vibro-fluidized bed in order to deposit silicon layers of nanometer scale on each individual grain from silane (SiH(4)), Experimental results show that for the conditions tested, the original granular structure of the powders is preserved for 90% of the initial bed weight while the remaining 10% consists of agglomerates in millimetre range found near the distributor of the reactor. A comparison between experimental and modelling results using the MFIX code shows that for Geldart's Group B alumina particles (Al(2)O(3)), the model represents both the bed hydrodynamics and silane conversion rates quite well. The future objective is to extend the simulation capability to cohesive submicron powders in order to achieve better predictability of the phenomena governing ultrafine particles. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Cadoret, L.; Reuge, N.; Coufort, C.; Caussat, B.] ENSIACET INPT, CNRS, Lab Genie Chim, UMR 5503, F-31106 Toulouse 1, France.
[Pannala, S.] Oak Ridge Natl Lab, Computat Math Grp, Oak Ridge, TN 37831 USA.
[Syamlal, M.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Rossignol, C.; Dexpert-Ghys, J.] CNRS, CEMES, UPR 8011, F-31055 Toulouse 4, France.
RP Caussat, B (reprint author), ENSIACET INPT, CNRS, Lab Genie Chim, UMR 5503, 5 Rue Paulin Talabot,BP 1301, F-31106 Toulouse 1, France.
EM Madhava.Syamlal@NETLDOE.GOV; jdexpert@cemes.fr;
Brigitte.Caussat@ensiacet.fr
RI Pannala, Sreekanth/F-9507-2010
NR 29
TC 13
Z9 17
U1 0
U2 24
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD MAR 5
PY 2009
VL 190
IS 1-2
BP 185
EP 191
DI 10.1016/j.powtec.2008.04.083
PG 7
WC Engineering, Chemical
SC Engineering
GA 422MR
UT WOS:000264432900033
ER
PT J
AU Fukunaga, R
Doudna, JA
AF Fukunaga, Ryuya
Doudna, Jennifer A.
TI dsRNA with 5 ' overhangs contributes to endogenous and antiviral RNA
silencing pathways in plants
SO EMBO JOURNAL
LA English
DT Article
DE dsRNA-binding; overhang; plant; RNA silencing; viral suppressor
ID TRANS-ACTING SIRNAS; SMALL INTERFERING RNA; COILED COILS; ARABIDOPSIS;
PROTEIN; SUPPRESSOR; SGS3; BIOGENESIS; RECOGNITION; METHYLATION
AB In plants, SGS3 and RNA-dependent RNA polymerase 6 (RDR6) are required to convert single-to double-stranded RNA (dsRNA) in the innate RNAi-based antiviral response and to produce both exogenous and endogenous short-interfering RNAs. Although a role for RDR6-catalysed RNA-dependent RNA polymerisation in these processes seems clear, the function of SGS3 is unknown. Here, we show that SGS3 is a dsRNA-binding protein with unexpected substrate selectivity favouring 5'-overhang-containing dsRNA. The conserved XS and coiled-coil domains are responsible for RNA-binding activity. Furthermore, we find that the V2 protein from tomato yellow leaf curl virus, which suppresses the RNAi-based host immune response, is a dsRNA-binding protein with similar specificity to SGS3. In competition-binding experiments, V2 out-competes SGS3 for substrate dsRNA recognition, whereas a V2 point mutant lacking the suppressor function in vivo cannot efficiently overcome SGS3 binding. These findings suggest that SGS3 recognition of dsRNA containing a 5' overhang is required for subsequent steps in RNA-mediated gene silencing in plants, and that V2 functions as a viral suppressor by preventing SGS3 from accessing substrate RNAs.
C1 [Doudna, Jennifer A.] Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Doudna, Jennifer A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Doudna, Jennifer A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Doudna, JA (reprint author), Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, 708A Stanley Hall, Berkeley, CA 94720 USA.
EM doudna@berkeley.edu
OI Fukunaga, Ryuya/0000-0002-5814-8206
FU NIH; JSPS Research Fellowships for Research Abroad
FX We thank Dr Yedidya Gafni for providing the cDNA clone plasmids for
SlSGS3 and V2. We also thank Dr Xuemei Chen for providing the cDNA clone
plasmid for AtRDR6. We gratefully acknowledge members of the Doudna
laboratory for discussions. This work was supported in part by a grant
from the NIH to JAD; RF was supported by JSPS Research Fellowships for
Research Abroad.
NR 30
TC 69
Z9 70
U1 4
U2 12
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0261-4189
J9 EMBO J
JI Embo J.
PD MAR 4
PY 2009
VL 28
IS 5
BP 545
EP 555
DI 10.1038/emboj.2009.2
PG 11
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 415XD
UT WOS:000263968900011
PM 19165150
ER
PT J
AU Agarwal, A
Biegler, LT
Zitney, SE
AF Agarwal, Anshul
Biegler, Lorenz T.
Zitney, Stephen E.
TI Simulation and Optimization of Pressure Swing Adsorption Systems Using
Reduced-Order Modeling
SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
LA English
DT Article
ID PROPER ORTHOGONAL DECOMPOSITION; FINITE-VOLUME METHOD; OPTIMAL-DESIGN;
REDUCTION; SEPARATION; HYDROGEN; GAS; PURIFICATION; DYNAMICS; EQUATION
AB Over the past three decades, pressure swing adsorption (PSA) processes have been widely used as energy-efficient gas separation techniques, especially for high purity hydrogen purification from refinery gases. Models for PSA processes are multiple instances of partial differential equations (PDEs) in time and space with periodic boundary conditions that link the processing steps together. The solution of this coupled stiff PDE system is governed by steep fronts moving with time. As a result, the optimization of such systems represents a significant computational challenge to current differential algebraic equation (DAE) optimization techniques and nonlinear programming algorithms. Model reduction is one approach to generate cost-efficient low-order models which can be used as surrogate models in the optimization problems. This study develops a reduced-order model (ROM) based on proper orthogonal decomposition (POD), which is a low-dimensional approximation to a dynamic PDE-based model. The proposed method leads to a DAE system of significantly lower order, thus replacing the one obtained from spatial discretization and making the optimization problem computationally efficient. The method has been applied to the dynamic coupled PDE-based model of a two-bed four-step PSA process for separation of hydrogen from methane. Separate ROMs have been developed for each operating step with different POD modes for each of them. A significant reduction in the order of the number of states has been achieved. The reduced-order model has been successfully used to maximize hydrogen recovery by manipulating operating pressures, step times and feed and regeneration velocities, while meeting product purity and tight bounds on these parameters. Current results indicate the proposed ROM methodology as a promising surrogate modeling technique for cost-effective optimization purposes.
C1 [Agarwal, Anshul; Biegler, Lorenz T.; Zitney, Stephen E.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Agarwal, Anshul; Biegler, Lorenz T.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA.
RP Biegler, LT (reprint author), Natl Energy Technol Lab, POB 880, Morgantown, WV 26507 USA.
EM lb01@andrew.cmu.edu
OI Agarwal, Anshul/0000-0003-3685-8052
FU National Energy Technology Laboratory's ongoing research in Process and
Dynamic Systems Research 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 41
TC 28
Z9 29
U1 8
U2 21
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 MAR 4
PY 2009
VL 48
IS 5
BP 2327
EP 2343
DI 10.1021/ie071416p
PG 17
WC Engineering, Chemical
SC Engineering
GA 412LB
UT WOS:000263725200007
ER
PT J
AU Keskin, S
Liu, J
Rankin, RB
Johnson, JK
Sholl, DS
AF Keskin, Seda
Liu, Jinchen
Rankin, Rees B.
Johnson, J. Karl
Sholl, David S.
TI Progress, Opportunities, and Challenges for Applying Atomically Detailed
Modeling to Molecular Adsorption and Transport in Metal-Organic
Framework Materials
SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
LA English
DT Review
ID DENSITY-FUNCTIONAL THEORY; MONTE-CARLO-SIMULATION; VAN-DER-WAALS;
HYDROGEN STORAGE MATERIALS; PATH-INTEGRAL SIMULATIONS; GAS SORPTION
PROPERTIES; DYNAMICS SIMULATIONS; FORCE-FIELD; CARBON-DIOXIDE; ATOMISTIC
SIMULATIONS
AB Metal-organic framework (MOF) materials are a class of nanoporous materials that have many potential advantages over traditional nanoporous materials for adsorption and other chemical separation technologies. Because of the large number of different MOFs that exist, efforts to predict the performance of MOFs using molecular modeling can potentially play an important role in selecting materials for specific applications. We review the current state-of-the-art in the molecular modeling and quantum mechanical modeling of MOFs. Quantum mechanical calculations have been used to date to examine structural and electronic properties of MOFs and the calculation of MOF-guest interactions. Molecular modeling calculations using empirical classical potential calculations have been used to study pure and mixed fluid adsorption in MOFs. Similar calculations have recently provided initial information about the diffusive transport of adsorbed fluids in MOFs.
C1 [Keskin, Seda; Sholl, David S.] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA.
[Liu, Jinchen; Rankin, Rees B.; Johnson, J. Karl] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
[Liu, Jinchen; Rankin, Rees B.; Johnson, J. Karl] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA.
RP Sholl, DS (reprint author), Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA.
EM david.sholl@chbe.gatech.edu
RI Johnson, Karl/E-9733-2013; keskin, seda/H-3196-2016
OI Johnson, Karl/0000-0002-3608-8003; keskin, seda/0000-0001-5968-0336
FU National Science Foundation [CTS-0413027, CTS-0556831]; U.S. Department
of Energy through the National Energy Technology Laboratory
[41817M203841817M2000]
FX S.K. and D.S.S. acknowledge partial support from the National Science
Foundation through Grants CTS-0413027 and CTS-0556831. J.L., R.B.R., and
J.K.J. acknowledge funding from the U.S. Department of Energy through
the National Energy Technology Laboratory under Grant
41817M203841817M2000.
NR 167
TC 192
Z9 192
U1 12
U2 122
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 MAR 4
PY 2009
VL 48
IS 5
BP 2355
EP 2371
DI 10.1021/ie800666s
PG 17
WC Engineering, Chemical
SC Engineering
GA 412LB
UT WOS:000263725200009
ER
PT J
AU Tang, Z
Monroe, J
Dong, JH
Nenoff, T
Weinkauf, D
AF Tang, Zhong
Monroe, Justin
Dong, Junhang
Nenoff, Tina
Weinkauf, Donald
TI Platinum-Loaded NaY Zeolite for Aqueous-Phase Reforming of Methanol and
Ethanol to Hydrogen
SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
LA English
DT Article
ID SUPPORTED COBALT CATALYSTS; FUEL-CELL APPLICATIONS; THERMODYNAMIC
ANALYSIS; STEAM; HYDROCARBONS; CHEMISORPTION; PARTICLES; MIXTURES;
ALKANES; WATER
AB Platinum-loaded NaY zeolite (Pt/NaY) catalysts were synthesized and tested for the aqueous-phase reforming (APR) of methanol and ethanol solutions to produce hydrogen. The APR performance of the Pt/NaY catalysts was compared to the conventional gamma-alumina-supported platinum (Pt/gamma-Al(2)O(3)) catalysts. The results have shown that the Pt/NaY catalysts have higher catalytic performance for the APR of methanol and ethanol than the Pt/gamma-Al(2)O(3) catalysts.
C1 [Tang, Zhong; Dong, Junhang] Univ Cincinnati, Dept Chem & Mat Engn, Cincinnati, OH 45221 USA.
[Monroe, Justin; Weinkauf, Donald] New Mexico Inst Min & Technol, Dept Chem Engn, Socorro, NM 87801 USA.
[Nenoff, Tina] Sandia Natl Labs, Surface & Interface Sci, Albuquerque, NM 87185 USA.
RP Dong, JH (reprint author), Univ Cincinnati, Dept Chem & Mat Engn, Cincinnati, OH 45221 USA.
EM Junhang.dong@uc.edu
FU U.S. DOE/HNIE; Sandia LDRD; Lockheed Martin Co.; U.S. DOE's NNSA
[DE-AC04-94-A185000]
FX This research was supported by the U.S. DOE/HNIE and Sandia LDRD. Sandia
is a multiprogram laboratory operated by Lockheed Martin Co., for the
U.S. DOE's NNSA (Contract No. DE-AC04-94-A185000).
NR 34
TC 19
Z9 19
U1 4
U2 19
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 MAR 4
PY 2009
VL 48
IS 5
BP 2728
EP 2733
DI 10.1021/ie801222f
PG 6
WC Engineering, Chemical
SC Engineering
GA 412LB
UT WOS:000263725200052
ER
PT J
AU Still, CJ
Riley, WJ
Biraud, SC
Noone, DC
Buenning, NH
Randerson, JT
Torn, MS
Welker, J
White, JWC
Vachon, R
Farquhar, GD
Berry, JA
AF Still, C. J.
Riley, W. J.
Biraud, S. C.
Noone, D. C.
Buenning, N. H.
Randerson, J. T.
Torn, M. S.
Welker, J.
White, J. W. C.
Vachon, R.
Farquhar, G. D.
Berry, J. A.
TI Influence of clouds and diffuse radiation on ecosystem-atmosphere CO2
and (COO)-O-18 exchanges
SO JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
LA English
DT Review
ID CARBON-ISOTOPE DISCRIMINATION; GRASS ECHINOCHLOA-POLYSTACHYA; GLOBAL
3-DIMENSIONAL MODEL; GROSS PRIMARY PRODUCTION; SURFACE SOLAR-RADIATION;
LEAF-AREA INDEX; WATER-VAPOR; C-4 GRASSES; STOMATAL CONDUCTANCE;
ANHYDRASE ACTIVITY
AB This study evaluates the potential impact of clouds on ecosystem CO2 and CO2 isotope fluxes ("isofluxes'') in two contrasting ecosystems (a broadleaf deciduous forest and a C-4 grassland) in a region for which cloud cover, meteorological, and isotope data are available for driving the isotope-enabled land surface model (ISOLSM). Our model results indicate a large impact of clouds on ecosystem CO2 fluxes and isofluxes. Despite lower irradiance on partly cloudy and cloudy days, predicted forest canopy photosynthesis was substantially higher than on clear, sunny days, and the highest carbon uptake was achieved on the cloudiest day. This effect was driven by a large increase in light-limited shade leaf photosynthesis following an increase in the diffuse fraction of irradiance. Photosynthetic isofluxes, by contrast, were largest on partly cloudy days, as leaf water isotopic composition was only slightly depleted and photosynthesis was enhanced, as compared to adjacent clear-sky days. On the cloudiest day, the forest exhibited intermediate isofluxes: although photosynthesis was highest on this day, leaf-to-atmosphere isofluxes were reduced from a feedback of transpiration on canopy relative humidity and leaf water. Photosynthesis and isofluxes were both reduced in the C-4 grass canopy with increasing cloud cover and diffuse fraction as a result of near-constant light limitation of photosynthesis. These results suggest that some of the unexplained variation in global mean delta O-18 of CO2 may be driven by large-scale changes in clouds and aerosols and their impacts on diffuse radiation, photosynthesis, and relative humidity.
C1 [Still, C. J.] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA.
[Berry, J. A.] Carnegie Inst Sci, Dept Global Ecol, Stanford, CA 94305 USA.
[Riley, W. J.; Biraud, S. C.; Torn, M. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Buenning, N. H.] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Farquhar, G. D.] Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 0200, Australia.
[Randerson, J. T.] Univ Calif Irvine, Earth Syst Sci Dept, Irvine, CA 92697 USA.
[White, J. W. C.; Vachon, R.] Univ Colorado, INSTAAR, Boulder, CO 80309 USA.
[Welker, J.] Univ Alaska Anchorage, Environm & Nat Resources Inst, Anchorage, AK 99508 USA.
RP Still, CJ (reprint author), Univ Calif Santa Barbara, Dept Geog, 3611 Elison Hall, Santa Barbara, CA 93106 USA.
EM still@icess.ucsb.edu
RI Berry, Joseph/B-8211-2009; White, James/A-7845-2009; Welker,
Jeffrey/C-9493-2013; Biraud, Sebastien/M-5267-2013; Riley,
William/D-3345-2015; Torn, Margaret/D-2305-2015
OI Berry, Joseph/0000-0002-5849-6438; White, James/0000-0001-6041-4684;
Biraud, Sebastien/0000-0001-7697-933X; Riley,
William/0000-0002-4615-2304;
FU NOAA Climate Program Office [NA03OAR4310059]; NSF Earth System History
program [0080952]
FX We gratefully acknowledge support from the NOAA Climate Program Office
(grant NA03OAR4310059). Data were obtained from the Atmospheric
Radiation Measurement program sponsored by the U. S. Department of
Energy, Office of Science, Office of Biological and Environmental
Research, Environmental Sciences Division. We also acknowledge
meteorological data support provided by the Oklahoma and Kansas Mesonet
program. The U. S. Network for Isotopes in Precipitation
(http://www.uaa.alaska.edu/enri/usnip/index.cfm) contributed
delta18O data for our simulations and was supported in part
by NSF Earth System History program (0080952). Comments from anonymous
reviewers and the associate editor improved the manuscript.
NR 139
TC 41
Z9 43
U1 3
U2 33
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-8953
EI 2169-8961
J9 J GEOPHYS RES-BIOGEO
JI J. Geophys. Res.-Biogeosci.
PD MAR 4
PY 2009
VL 114
AR G01018
DI 10.1029/2007JG000675
PG 17
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 415QW
UT WOS:000263950400001
ER
PT J
AU Creutz, C
Chou, MH
AF Creutz, Carol
Chou, Mei H.
TI Hydricities of d(6) Metal Hydride Complexes in Water
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID ACIDIC CONDITIONS; CARBON-DIOXIDE; TRANSFER HYDROGENATION; AQUA
COMPLEXES; CATALYST; EQUILIBRIUM; POTENTIALS; REDUCTION; SOLVATION;
OXIDATION
AB Hydricities of d(6) metal hydride complexes in water have been calculated from redox properties and acidities (cobalt and rhodium) or by equilibration with carbon dioxide/formate ion (ruthenium).
C1 [Creutz, Carol; Chou, Mei H.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Creutz, C (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM ccreutz@bnl.gov
FU U.S. Department of Energy [DE-AC02-98CH10884]; Biosciences of the Office
of Basic Energy Sciences
FX This research was carried Out at Brookhaven National Laboratory under
Contract DE-AC02-98CH10884 with the U.S. Department of Energy and
supported by its Division of Chemical Sciences, Geosciences, and
Biosciences of the Office of Basic Energy Sciences.
NR 26
TC 42
Z9 42
U1 0
U2 25
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 MAR 4
PY 2009
VL 131
IS 8
BP 2794
EP +
DI 10.1021/ja809724s
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427PX
UT WOS:000264792300020
PM 19199429
ER
PT J
AU Dimitrijevic, NM
Rozhkova, E
Rajh, T
AF Dimitrijevic, Nada M.
Rozhkova, Elena
Rajh, Tijana
TI Dynamics of Localized Charges in Dopamine-Modified TiO2 and their Effect
on the Formation of Reactive Oxygen Species
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID ELECTRON-PARAMAGNETIC-RES; SINGLET OXYGEN; TITANIUM-DIOXIDE;
VISIBLE-LIGHT; TIO2-ASSISTED PHOTODEGRADATION; SEMICONDUCTOR
PHOTOCATALYSIS; AQUEOUS DISPERSIONS; EPR SPECTROSCOPY; SPIN-RESONANCE;
COLLOIDAL TIO2
AB Modification of TiO2 nanoparticles with dopamine enables harvesting of visible light and promotes spatial separation of charges. The formation of reactive oxygen species (OH, O-1(2), O-2, HO2, H2O2) upon illumination of TiO2/dopamine was studied using complementary spin-trap EPR and radical-induced fluorescence techniques. The localization of holes on dopamine suppresses oxidation of adsorbed water molecules at the surface of nanoparticles, and thus formation of OH radicals. At the same time, dopamine does not affect electronic properties of photogenerated electrons and their reaction with dissolved oxygen to produce superoxide anions. Superoxide anions are proposed to generate singlet oxygen through dismutation reaction, resulting in a low yield of O-1(2) detected.
C1 [Dimitrijevic, Nada M.; Rozhkova, Elena; Rajh, Tijana] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
[Dimitrijevic, Nada M.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Dimitrijevic, NM (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM Dimitrijevic@anl.gov
FU U.S. Department of Energy, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX The work was performed under the auspices of the U.S. Department of
Energy, Office of Basic Energy Sciences under Contract No.
DE-AC02-06CH11357.
NR 52
TC 70
Z9 70
U1 15
U2 103
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 MAR 4
PY 2009
VL 131
IS 8
BP 2893
EP 2899
DI 10.1021/ja807654k
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427PX
UT WOS:000264792300043
PM 19209860
ER
PT J
AU Gandon, V
Agenet, N
Vollhardt, KPC
Malacria, M
Aubert, C
AF Gandon, Vincent
Agenet, Nicolas
Vollhardt, K. Peter C.
Malacria, Max
Aubert, Corinne
TI Silicon-Hydrogen Bond Activation and Hydrosilylation of Alkenes Mediated
by CpCo Complexes: A Theoretical Study
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID FORBIDDEN CHEMICAL-REACTIONS; TRANSITION-METAL COMPOUNDS;
MOLECULAR-ORBITAL METHODS; CHALK-HARROD MECHANISM; GAUSSIAN-TYPE BASIS;
N-H ACTIVATION; C-H; SPIN-STATE; ORGANIC-MOLECULES; GAS-PHASE
AB Using DFT techniques, we show that triplet cyclopentadienylcobalt activates Si-H bonds to generate singlet silylcobalt hydrides without the intervention of sigma-silanes. The cobalt is configurationally unstable, as evidenced by the diastereoisomerization of derivatives bearing chiral silyl ligands. Inversion at the metal proceeds in the singlet state via a bridging hydride. We demonstrate that a two-state mechanism for the transformation of silyl hydride cobalt complexes into disilyl dihydride cobalt species is feasible. Our calculations predict that catalytic hydrosilylation of alkenes should be achievable in the coordination sphere of cyclopentadienylcobalt.
C1 [Gandon, Vincent; Agenet, Nicolas; Malacria, Max; Aubert, Corinne] Univ Paris 06, Inst Chim Mol FR 2769, CNRS, Chim Organ Lab UMR 7611, F-75252 Paris 05, France.
[Vollhardt, K. Peter C.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Vollhardt, K. Peter C.] Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Gandon, V (reprint author), Univ Paris 06, Inst Chim Mol FR 2769, CNRS, Chim Organ Lab UMR 7611, Case 229,4 Pl Jussieu, F-75252 Paris 05, France.
EM vincent.gandon@upmc.fr
RI Gandon, Vincent/C-1942-2014
OI Gandon, Vincent/0000-0003-1108-9410
FU CNRS; MRES; DGA; NSF [CHE 0451241]; CRIHAN, Plan Interregional du Bassin
Parisien [2006-013]
FX This work was supported by CNRS, MRES, DGA, and the NSF (CHE 0451241).
M.M. is a member of the Institut Universitaire de France. We are
grateful for the use of the computing facilities of CRIHAN, Plan
Interregional du Bassin Parisien (Project 2006-013). We are thankful to
Professors S. F. Vyboishchikov, G. I. Nikonov, and M. Brookhart for
useful discussions.
NR 69
TC 21
Z9 21
U1 2
U2 39
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 MAR 4
PY 2009
VL 131
IS 8
BP 3007
EP 3015
DI 10.1021/ja809100t
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA 427PX
UT WOS:000264792300057
PM 19209851
ER
PT J
AU Peterson, BK
Hare, EE
Iyer, VN
Storage, S
Conner, L
Papaj, DR
Kurashima, R
Jang, E
Eisen, MB
AF Peterson, Brant K.
Hare, Emily E.
Iyer, Venky N.
Storage, Steven
Conner, Laura
Papaj, Daniel R.
Kurashima, Rick
Jang, Eric
Eisen, Michael B.
TI Big Genomes Facilitate the Comparative Identification of Regulatory
Elements
SO PLOS ONE
LA English
DT Article
AB The identification of regulatory sequences in animal genomes remains a significant challenge. Comparative genomic methods that use patterns of evolutionary conservation to identify non-coding sequences with regulatory function have yielded many new vertebrate enhancers. However, these methods have not contributed significantly to the identification of regulatory sequences in sequenced invertebrate taxa. We demonstrate here that this differential success, which is often attributed to fundamental differences in the nature of vertebrate and invertebrate regulatory sequences, is instead primarily a product of the relatively small size of sequenced invertebrate genomes. We sequenced and compared loci involved in early embryonic patterning from four species of true fruit flies (family Tephritidae) that have genomes four to six times larger than those of Drosophila melanogaster. Unlike in Drosophila, where virtually all non-coding DNA is highly conserved, blocks of conserved non-coding sequence in tephritids are flanked by large stretches of poorly conserved sequence, similar to what is observed in vertebrate genomes. We tested the activities of nine conserved non-coding sequences flanking the even-skipped gene of the teprhitid Ceratis capitata in transgenic D. melanogaster embryos, six of which drove patterns that recapitulate those of known D. melanogaster enhancers. In contrast, none of the three non-conserved tephritid non-coding sequences that we tested drove expression in D. melanogaster embryos. Based on the landscape of non-coding conservation in tephritids, and our initial success in using conservation in tephritids to identify D. melanogaster regulatory sequences, we suggest that comparison of tephritid genomes may provide a systematic means to annotate the non-coding portion of the D. melanogaster genome. We also propose that large genomes be given more consideration in the selection of species for comparative genomics projects, to provide increased power to detect functional non-coding DNAs and to provide a less biased view of the evolution and function of animal genomes.
C1 [Peterson, Brant K.; Hare, Emily E.; Iyer, Venky N.; Storage, Steven; Eisen, Michael B.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Peterson, Brant K.; Hare, Emily E.; Eisen, Michael B.] Ernest Orlando Lawrence Berkeley Natl Lab, Genom Div, Berkeley, CA USA.
[Conner, Laura; Papaj, Daniel R.] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA.
[Kurashima, Rick; Jang, Eric] US Dept Agr, Pacific Basin Agr Res Ctr, Hilo, HI USA.
[Eisen, Michael B.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Eisen, Michael B.] Univ Calif Berkeley, Calif Inst Quantitative Biosci, Berkeley, CA 94720 USA.
[Eisen, Michael B.] Univ Calif Berkeley, Ctr Integrative Genom, Berkeley, CA 94720 USA.
RP Peterson, BK (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM mbeisen@berkeley.edu
OI Eisen, Michael/0000-0002-7528-738X
FU NIH [HG002779]; Director, Office of Science, Office of Basic Energy
Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231];
Department of Energy's Joint Genome Institute [Community Sequencing
Grant]
FX This work was supported by NIH grant HG002779 to MBE and by the
Director, Office of Science, Office of Basic Energy Sciences, of the
U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
Sequencing was conducted under a Community Sequencing Grant from the
Department of Energy's Joint Genome Institute. The funders had no role
in study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 47
TC 30
Z9 31
U1 1
U2 6
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 MAR 4
PY 2009
VL 4
IS 3
AR e4688
DI 10.1371/journal.pone.0004688
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 437MB
UT WOS:000265490500008
PM 19259274
ER
PT J
AU Chen, YT
Jakoncic, J
Carpino, N
Nassar, N
AF Chen, Yunting
Jakoncic, Jean
Carpino, Nick
Nassar, Nicolas
TI Structural and Functional Characterization of the 2H-Phosphatase Domain
of Sts-2 Reveals an Acid-Dependent Phosphatase Activity
SO BIOCHEMISTRY
LA English
DT Article
ID PROTEIN-TYROSINE PHOSPHATASES; DEPHOSPHORYLATION; PHOSPHORYLATION;
CATALYSIS; KINASES; CLONING; CBL
AB The suppressors of T cell receptor (TCR) signaling I and 2 (Sts-1 and -2, respectively) are multidomain proteins that negatively regulate the signaling of membrane-bound receptors, including TCR- and the epidermal growth factor receptor (EGFR). Sts-1 was recently shown to be a new type of protein tyrosine phosphatase (PTP), with the phosphatase activity located within its C-terminal phosphoglycerate mutase (PGM) homology domain and key for the regulation of TCR signaling in T cells. The activity of the related Sts-2 enzyme is significantly less than that of Sts-1. Here we investigate the phosphatase activity of the PGM domain of Sts-2, Sts-2(PGM). The crystal structure of Sts-2(PGM) is remarkably similar to StS-(1PGM), including conservation of all catalytic residues. Insight into mechanistic details is provided by the structures of the apo, tungstate-bound, and phosphate-bound enzyme. The active site shows stringent specificity, with the k(cat) optimum at pH 5.0 suggesting that Sts-2 might function as an acid-dependent phosphatase. Mutation of active site residues GIn372, Ala446, Glu481, Ser552, and Ser582 to their equivalents in Sts-1 increases the phosphatase activity of Sts-2pGm toward model substrates. Overall, our data demonstrate that Sts-2(PGM) adopts the conformation of an active phosphatase whose activity is fundamentally different from that of Sts-1 despite the strong structural homology. They also demonstrate that nonconserved active site residues are responsible for the difference in activity between the two isoforms. These differences reflect possible distinct physiological substrates.
C1 [Chen, Yunting; Nassar, Nicolas] SUNY Stony Brook, Dept Physiol & Biophys, Stony Brook, NY 11794 USA.
[Carpino, Nick] SUNY Stony Brook, Dept Mol Genet & Microbiol, Stony Brook, NY 11794 USA.
[Jakoncic, Jean] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Nassar, N (reprint author), SUNY Stony Brook, Dept Physiol & Biophys, Basic Sci Tower, Stony Brook, NY 11794 USA.
EM nicolas.nassar@sunysb.edu
FU National Institutes of Health [CA-115611]; U.S. Department of Defense
[NF060060]; The Arthritis Foundation [L107]; National Institute of
Allergy and Infectious Diseases [R21AI075176]; The National Multiple
Sclerosis Society through a Collaborative MS Research Center Award
[CA1044A1]; U.S. Department of Energy [DE-AC0298CH10886]; National
Institute of General Medical Sciences [Y1 GM-0080-03]
FX Research in N.N.'s laboratory is supported in part by grants from the
National Institutes of Health (CA-115611) and the U.S. Department of
Defense (NF060060). Research in N.C.'s laboratory is supported by grants
from The Arthritis Foundation (L107), the National Institute of Allergy
and Infectious Diseases (R21AI075176), and The National Multiple
Sclerosis Society through a Collaborative MS Research Center Award
(CA1044A1). Research carried out at beamline X6A, National Synchrotron
Light Source, Brookhaven National Laboratory, is supported by the U.S.
Department of Energy under Contract DE-AC0298CH10886. X6A is funded by
the National Institute of General Medical Sciences under Grant Y1
GM-0080-03.
NR 37
TC 11
Z9 13
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0006-2960
J9 BIOCHEMISTRY-US
JI Biochemistry
PD MAR 3
PY 2009
VL 48
IS 8
BP 1681
EP 1690
DI 10.1021/bi802219n
PG 10
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 412BD
UT WOS:000263697300003
PM 19196006
ER
PT J
AU Akabayov, B
Lee, SJ
Akabayov, SR
Rekhi, S
Zhu, B
Richardson, CC
AF Akabayov, Barak
Lee, Seung-Joo
Akabayov, Sabine R.
Rekhi, Sandeep
Zhu, Bin
Richardson, Charles C.
TI DNA Recognition by the DNA Primase of Bacteriophage T7: A
Structure-Function Study of the Zinc-Binding Domain
SO BIOCHEMISTRY
LA English
DT Article
ID X-RAY-ABSORPTION; CONFORMATIONAL FLEXIBILITY; TEMPLATE RECOGNITION;
HELICASE ACTIVITY; GENE-4 PROTEIN; PK(A) VALUES; COORDINATION;
PREDICTION; SEQUENCE; COMPLEXES
AB Synthesis of oligoribonucleotide primers for lagging-strand DNA synthesis in the DNA replication system of bacteriophage T7 is catalyzed by the primase domain of the gene 4 helicase-primase. The primase consists of a zinc-binding domain (ZBD) and an RNA polymerase (RPD) domain. The ZBD is responsible for recognition of a specific sequence in the ssDNA template whereas catalytic activity resides in the RPD. The ZBD contains a zinc ion coordinated with four cysteine residues. We have examined the ligation state of the zinc ion by X-ray absorption spectroscopy and biochemical analysis of genetically altered primases. The ZBD of primase engaged in catalysis exhibits considerable asymmetry in coordination to zinc, as evidenced by a gradual increase in electron density of the zinc together with elongation of the zinc-sulfur bonds. Both wild-type primase and primase reconstituted from purified ZBD and RPD have a similar electronic change in the level of the zinc ion as well as the configuration of the ZBD. Single amino acid replacements in the ZBD (H33A and C36S) result in the loss of both zinc binding and its structural integrity. Thus the zinc in the ZBD may act as a charge modulation indicator for the surrounding sulfur atoms necessary for recognition of specific DNA sequences.
C1 [Akabayov, Barak; Lee, Seung-Joo; Akabayov, Sabine R.; Zhu, Bin; Richardson, Charles C.] Harvard Univ, Sch Med, Dept Biol Chem & Mol Pharmacol, Boston, MA 02115 USA.
[Rekhi, Sandeep] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Richardson, CC (reprint author), Harvard Univ, Sch Med, Dept Biol Chem & Mol Pharmacol, Boston, MA 02115 USA.
EM ccr@hms.harvard.edu
RI Akabayov, Barak/D-1551-2011;
OI Akabayov, Barak/0000-0002-3882-2742
FU United States Public Health Services [GM 54397]
FX This research was supported by the United States Public Health Services
Grant GM 54397.
NR 38
TC 13
Z9 13
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 MAR 3
PY 2009
VL 48
IS 8
BP 1763
EP 1773
DI 10.1021/bi802123t
PG 11
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 412BD
UT WOS:000263697300011
PM 19206208
ER
PT J
AU Dera, P
Lavina, B
Borkowski, LA
Prakapenka, VB
Sutton, SR
Rivers, ML
Downs, RT
Boctor, NZ
Prewitt, CT
AF Dera, Przemyslaw
Lavina, Barbara
Borkowski, Lauren A.
Prakapenka, Vitali B.
Sutton, Stephen R.
Rivers, Mark L.
Downs, Robert T.
Boctor, Nabil Z.
Prewitt, Charles T.
TI Structure and behavior of the barringerite Ni end-member, Ni2P, at deep
Earth conditions and implications for natural Fe-Ni phosphides in
planetary cores
SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
LA English
DT Article
ID ADVANCED PHOTON SOURCE; HIGH-PRESSURE; X-RAY; CRYSTAL-STRUCTURE;
MAGNETIC-PROPERTIES; AMORPHOUS ALLOY; SOLID-SOLUTIONS; P SYSTEM;
TEMPERATURE; NICKEL
AB High-pressure and high-temperature behavior of synthetic Ni2P has been studied in a laser-heated diamond anvil cell up to 50 GPa and 2200 K. Incongruent melting associated with formation of pyrite-type NiP2 and amorphous Ni-P alloy was found at an intermediate pressure range, between 6.5 and 40 GPa. Above 40 GPa, Ni2P melts congruently. At room conditions, Ni2P has hexagonal C22-type structure, and without heating it remains in this structure to at least 50 GPa. With a bulk modulus K-0 = 201(8) GPa and K' = 4.2(6), Ni2P is noticeably less compressible than hcp Fe, as well as all previously described iron phosphides, and its presence in the Earth core would favorably lower the core density. In contrast to Fe2P, the c/a ratio in Ni2P decreases on compression because of the lack of ferromagnetic interaction along the c direction. Lack of the C22 -> C23 transition in Ni2P rules out a stabilizing effect of Ni on the orthorhombic phase of natural (Fe1-xNix)(2)P allabogdanite.
C1 [Dera, Przemyslaw; Lavina, Barbara; Prakapenka, Vitali B.; Sutton, Stephen R.; Rivers, Mark L.] Univ Chicago, Argonne Natl Lab, Ctr Adv Radiat Sources, Argonne, IL 60439 USA.
[Borkowski, Lauren A.] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Borkowski, Lauren A.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Downs, Robert T.; Prewitt, Charles T.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA.
[Boctor, Nabil Z.] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA.
RP Dera, P (reprint author), Univ Chicago, Argonne Natl Lab, Ctr Adv Radiat Sources, Bldg 434A,9700 S Cass Ave, Argonne, IL 60439 USA.
EM pdera@gl.ciw.edu
RI Lavina, Barbara/A-1015-2010; Dera, Przemyslaw/F-6483-2013
OI Lavina, Barbara/0000-0002-8556-7916;
NR 60
TC 4
Z9 6
U1 2
U2 13
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 MAR 3
PY 2009
VL 114
AR B03201
DI 10.1029/2008JB005944
PG 10
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 415SP
UT WOS:000263955600003
ER
PT J
AU Pol, VG
Thiyagarajan, P
Acharya, S
Ariga, K
Felner, I
AF Pol, Vilas G.
Thiyagarajan, P.
Acharya, Somobratra
Ariga, Katsuhiko
Felner, Israel
TI Superconducting Nanocrystalline Tin Protected by Carbon
SO LANGMUIR
LA English
DT Article
ID SN NANOWIRES; NANOPARTICLES; GROWTH; TEMPERATURE; VAPOR
AB Nanosized pure Sn crystals protected by in situ formed carbon synthesized by the thermolysis of allyltriphenyltin in an inert atmosphere under its autogenic pressure in closed reactor showed superconductivity at 3.7 K.
C1 [Pol, Vilas G.] Argonne Natl Lab, IPNS, Argonne, IL 60439 USA.
[Thiyagarajan, P.] US DOE, Off Basic Energy Sci, Washington, DC 20585 USA.
[Acharya, Somobratra; Ariga, Katsuhiko] Natl Inst Mat Sci, World Premier Int Res Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan.
[Felner, Israel] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
RP Pol, VG (reprint author), Argonne Natl Lab, IPNS, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM vilaspol@gmail.com
RI ARIGA, Katsuhiko/H-2695-2011
FU U.S. Department of Energy [DE-AC02-06CH11357]; UChicago Argonne, LLC
FX This work benefited from the use of facilities at IPNS, CNM, and EMC at
ANL, which is supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under contract no.
DE-AC02-06CH11357 by UChicago Argonne, LLC.
NR 16
TC 4
Z9 4
U1 0
U2 6
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD MAR 3
PY 2009
VL 25
IS 5
BP 2582
EP 2584
DI 10.1021/la804076k
PG 3
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 413CP
UT WOS:000263770800008
PM 19437682
ER
PT J
AU Werner, JH
Montano, GA
Garcia, AL
Zurek, NA
Akhadov, EA
Lopez, GP
Shreve, AP
AF Werner, James H.
Montano, Gabriel A.
Garcia, Anthony L.
Zurek, Nesia A.
Akhadov, Elshan A.
Lopez, Gabriel P.
Shreve, Andrew P.
TI Formation and Dynamics of Supported Phospholipid Membranes on a Periodic
Nanotextured Substrate
SO LANGMUIR
LA English
DT Article
ID LIPID-BILAYER MEMBRANES; LATERAL DIFFUSION; POROUS ALUMINA; SILICON;
SEPARATION; ELECTROPHORESIS; MONOLAYERS; ANISOTROPY; PROTEINS; MOBILITY
AB We have studied and modeled the morphology and dynamics of fluid planar lipid bilayer membranes supported on a textured silicon substrate. The substrate is fabricated to have channels on its surface that are a few hundred nanometers across, with a channel depth of a few hundred nanometers perpendicular to the plane of observation. Using atomic force microscopy and quantitative fluorescence microscopy, we have shown that the bilayer assemblies conform to the underlying nanostructured substrate. As far as dynamics is concerned, when observed over length scales exceeding the dimensions of the nanostructured features, the macroscopic diffusion is anisotropic. However, the macroscopic anisotropy is well simulated using models of diffusion on the nanostructured surface that consider the lipids to diffuse homogeneously and isotropically on the supporting substrate. Consistent with previous observations on less well characterized or less periodic nanostructures, we find that the nanostructured substrate produces an effective anisotropy in macroscopic diffusion of the conformal membrane. More importantly, we demonstrate how quantitative analysis of dynamics probed by larger-scale fluorescence imaging can yield information on nanoscale thin-film morphology.
C1 [Werner, James H.; Montano, Gabriel A.; Zurek, Nesia A.; Akhadov, Elshan A.; Shreve, Andrew P.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
[Garcia, Anthony L.; Lopez, Gabriel P.] Univ New Mexico, Ctr Biomed Engn, Dept Chem & Nucl Engn, Farris Engn Ctr 209, Albuquerque, NM 87131 USA.
RP Werner, JH (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
EM jwerner@lanl.gov; gplopez@unm.edu; shreve@lanl.gov
OI Werner, James/0000-0002-7616-8913
FU U.S. Department of Energy, Office of Basic Energy [DE-AC52-06NA25396];
Sandia National Laboratories [DE-AC0494AL85000]; National Science
Foundation's PREM [DMR-0611616]; NIRT [CTS0404124]
FX 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 at Los Alamos National Laboratory (contract
DE-AC52-06NA25396) and Sandia National Laboratories (contract
DE-AC0494AL85000). Funding for this work was provided by the National
Science Foundation's PREM (DMR-0611616) and NIRT (CTS0404124) programs.
The facilities of the NSF-sponsored Nadonal Nanotechnology
Infrastructure Network node at the University of New Mexico were used
for the nanostructure fabrication.
NR 36
TC 20
Z9 20
U1 1
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD MAR 3
PY 2009
VL 25
IS 5
BP 2986
EP 2993
DI 10.1021/la802249f
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 413CP
UT WOS:000263770800068
PM 19437708
ER
PT J
AU Harper, JC
Polsky, R
Wheeler, DR
Lopez, DM
Arango, DC
Brozik, SM
AF Harper, Jason C.
Polsky, Ronen
Wheeler, David R.
Lopez, DeAnna M.
Arango, Dulce C.
Brozik, Susan M.
TI A Multifunctional Thin Film Au Electrode Surface Formed by Consecutive
Electrochemical Reduction of Aryl Diazonium Salts
SO LANGMUIR
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; SCANNING PROBE LITHOGRAPHY; ATOMIC-FORCE
MICROSCOPY; CARBON SURFACES; COVALENT MODIFICATION; DNA IMMOBILIZATION;
PLASMON RESONANCE; SOFT LITHOGRAPHY; OXYGEN REDUCTION; ARRAY BIOSENSOR
AB A multifunctional thin film surface capable of immobilizing two diverse molecules on a single gold electrode was prepared by consecutive electrodeposition of nitrophenyl and phenylboronic acid pinacol ester (PBA-PE) diazonium salts. Activation of the stacked film toward binding platinum nanoparticles (PtNPs) and yeast cells occurred via chemical deprotection of the pinacol ester followed by electroreduction of nitro to amino groups. FTIR spectral analysis was used to study and verify film composition at each stage of preparation. The affect of electrodeposition protocol over the thickness of the nitrophenyl and PBA-PE layers was explored and had a profound impact on the film properties. Thicker nitrophenyl films led to diminished PBA-PE diazonium reduction currents during assembly and decreased phenylboronic acid (PBA) layer thickness while allowing for higher PtNP loading and catalytic currents from PtNP-mediated peroxide reduction. Multilayer PBA films could be formed over the nitrophenyl film; however, only submonlayer PBA films permitted access to the underlying layer. The sequence of functional group activation toward binding was also shown to be significant, as perchlorate used to remove pinacol ester also converted aminophenyl groups accessible to the solution to nitrophenyl groups, preventing electrostatic PtNP binding. Finally, SEM images show PtNPs immobilized in close proximity (nanometers) to captured yeast cells on the PBA-aminophenyl-Au film. Such multibinding functionality films that maintain conductivity for subsequent electrochemical measurements hold promise for the development of electrochemical and/or optical platforms for fundamental cell studies, genomic and proteomic analysis, and biosensing.
C1 [Harper, Jason C.; Polsky, Ronen; Wheeler, David R.; Lopez, DeAnna M.; Arango, Dulce C.; Brozik, Susan M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brozik, SM (reprint author), Sandia Natl Labs, POB 5800,MS-0892, Albuquerque, NM 87185 USA.
EM smbrozi@sandia.gov
FU United States Department of Energy [DE-AC04-94AL8500]
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the United States Department of Energy
under contract DE-AC04-94AL8500.
NR 71
TC 38
Z9 38
U1 1
U2 28
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD MAR 3
PY 2009
VL 25
IS 5
BP 3282
EP 3288
DI 10.1021/la803215z
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 413CP
UT WOS:000263770800112
PM 19437729
ER
PT J
AU Lou, XH
Qian, JR
Xiao, Y
Viel, L
Gerdon, AE
Lagally, ET
Atzberger, P
Tarasow, TM
Heeger, AJ
Soh, HT
AF Lou, Xinhui
Qian, Jiangrong
Xiao, Yi
Viel, Lisan
Gerdon, Aren E.
Lagally, Eric T.
Atzberger, Paul
Tarasow, Theodore M.
Heeger, Alan J.
Soh, H. Tom
TI Micromagnetic selection of aptamers in microfluidic channels
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE microchannel; recombinant Botulinum neurotoxin type A; systematic
evolution of ligands by exponential enrichment
ID IN-VITRO SELECTION; CAPILLARY-ELECTROPHORESIS; SYSTEMATIC EVOLUTION; RNA
APTAMERS; EXPONENTIAL ENRICHMENT; EQUILIBRIUM MIXTURES; AUTOMATED
SELECTION; SELEX; DNA; LIGANDS
AB Aptamers are nucleic acid molecules that have been selected in vitro to bind to their molecular targets with high affinity and specificity. Typically, the systematic evolution of ligands by exponential enrichment (SELEX) process is used for the isolation of specific, high-affinity aptamers. SELEX, however, is an iterative process requiring multiple rounds of selection and amplification that demand significant time and labor. Here, we describe an aptamer discovery system that is rapid, highly efficient, automatable, and applicable to a wide range of targets, based on the integration of magnetic bead-based SELEX process with microfluidics technology. Our microfluidic SELEX (M-SELEX) method exploits a number of unique phenomena that occur at the microscale and implements a design that enables it to manipulate small numbers of beads precisely and isolate high-affinity aptamers rapidly. As a model to demonstrate the efficiency of the M-SELEX process, we describe here the isolation of DNA aptamers that tightly bind to the light chain of recombinant Botulinum neurotoxin type A (with low-nanomolar dissociation constant) after a single round of selection.
C1 [Lou, Xinhui; Xiao, Yi; Lagally, Eric T.; Heeger, Alan J.; Soh, H. Tom] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA.
[Lou, Xinhui; Qian, Jiangrong; Xiao, Yi; Viel, Lisan; Gerdon, Aren E.; Lagally, Eric T.; Soh, H. Tom] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA.
[Atzberger, Paul] Univ Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA.
[Tarasow, Theodore M.] Lawrence Livermore Natl Lab, Chem Mat & Life Sci Directorate, Livermore, CA 94551 USA.
RP Heeger, AJ (reprint author), Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA.
EM ajhe1@physics.ucsb.edu; tsoh@engineering.ucsb.edu
RI Xiao, Yi/L-6606-2016
OI Xiao, Yi/0000-0001-7278-9811
FU University of California Directed Research and Development Program from
Lawrence Livermore National Laboratories [8-594100-69758]; U. S. Army
Research Office Institute for Collaborative Biotechnologies
[DAAD1903D004]; Defense Advanced Research Projects Agency/Defense
MicroElectronics Activity-Center for Nanoscience Innovation for Defense
[H94003-05-2-0503]
FX We thank Monte J. Radeke for help with real-time PCR experiments, Prof.
Kevin Plaxco for his careful reading of the manuscript, and Prof.
Patrick Daugherty for the use of the TECAN microplate reader and SPR
BIAcore 3000. We gratefully acknowledge support from the University of
California Directed Research and Development Program from Lawrence
Livermore National Laboratories (Grant 8-594100-69758), U. S. Army
Research Office Institute for Collaborative Biotechnologies Grant
DAAD1903D004, and Defense Advanced Research Projects Agency/Defense
MicroElectronics Activity-Center for Nanoscience Innovation for Defense
Grant H94003-05-2-0503.
NR 42
TC 159
Z9 168
U1 8
U2 90
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 3
PY 2009
VL 106
IS 9
BP 2989
EP 2994
DI 10.1073/pnas.0813135106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 414DM
UT WOS:000263844100006
PM 19202068
ER
PT J
AU Wu, P
Shui, WQ
Carlson, BL
Hu, N
Rabuka, D
Lee, J
Bertozzi, CR
AF Wu, Peng
Shui, Wenqing
Carlson, Brian L.
Hu, Nancy
Rabuka, David
Lee, Julia
Bertozzi, Carolyn R.
TI Site-specific chemical modification of recombinant proteins produced in
mammalian cells by using the genetically encoded aldehyde tag
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE antibody engineering; bioorthogonal reaction
ID FORMYLGLYCINE-GENERATING ENZYME; ANTIINFLAMMATORY ACTIVITY;
BIOLOGICAL-ACTIVITY; FC; THERAPEUTICS; ANTIBODY; FAMILY; LIGASE; PROBES;
GENE
AB The properties of therapeutic proteins can be enhanced by chemical modification. Methods for site-specific protein conjugation are critical to such efforts. Here, we demonstrate that recombinant proteins expressed in mammalian cells can be site-specifically modified by using a genetically encoded aldehyde tag. We introduced the peptide sequence recognized by the endoplasmic reticulum (ER)-resident formylglycine generating enzyme (FGE), which can be as short as 6 residues, into heterologous proteins expressed in mammalian cells. Cotranslational modification of the proteins by FGE produced products bearing a unique aldehyde group. Proteins bearing this "aldehyde tag'' were chemically modified by selective reaction with hydrazide- or aminooxy-functionalized reagents. We applied the technique to site-specific modification of monoclonal antibodies, the fastest growing class of biopharmaceuticals, as well as membrane-associated and cytosolic proteins expressed in mammalian cells.
C1 [Wu, Peng; Shui, Wenqing; Carlson, Brian L.; Hu, Nancy; Rabuka, David; Lee, Julia; 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, Berkeley, CA 94720 USA.
RP Bertozzi, CR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
EM crb@berkeley.edu
FU National Institutes of Health [GM59907, 5PN2EY018241-02-NDC]; Optical
Control of Biological Function [K99GM080585]; National Cancer Institute,
Bethesda, MD
FX This work was supported by National Institutes of Health Grants GM59907,
5PN2EY018241-02-NDC for the Optical Control of Biological Function, and
K99GM080585). The plgG plasmid was provided by Dr. Christoph Rader at
the National Cancer Institute, Bethesda, MD.
NR 27
TC 125
Z9 125
U1 3
U2 54
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 3
PY 2009
VL 106
IS 9
BP 3000
EP 3005
DI 10.1073/pnas.0807820106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 414DM
UT WOS:000263844100008
PM 19202059
ER
PT J
AU Chang, JH
Cho, YH
Sohn, SY
Choi, JM
Kim, A
Kim, YC
Jang, SK
Cho, Y
AF Chang, Jeong Ho
Cho, Yong Hyun
Sohn, Sun Young
Choi, Jung Min
Kim, Ahreum
Kim, Young Chang
Jang, Sung Key
Cho, Yunje
TI Crystal structure of the eIF4A-PDCD4 complex
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE translation inhibition; tumor suppressor; RNA helicase; domain closure;
MA3 domain
ID EUKARYOTIC TRANSLATION INITIATION; RNA-HELICASE; SUPPRESSOR PDCD4;
PROTEIN PDCD4; FACTOR 4A; EIF4A; MA-3; TRANSFORMATION; INHIBITION;
EXPRESSION
AB Tumor suppressor programmed cell death protein 4 (PDCD4) inhibits the translation initiation factor eIF4A, an RNA helicase that catalyzes the unwinding of secondary structure at the 5'-untranslated region of mRNAs and controls the initiation of translation. Here, we determined the crystal structure of the human eIF4A and PDCD4 complex. The structure reveals that one molecule of PDCD4 binds to the two eIF4A molecules through the two different binding modes. While the two MA3 domains of PDCD4 bind to one eIF4A molecule, the C-terminal MA3 domain alone of the same PDCD4 also interacts with another eIF4A molecule. The eIF4A-PDCD4 complex structure suggests that the MA3 domain(s) of PDCD4 binds perpendicular to the interface of the two domains of eIF4A, preventing the domain closure of eIF4A and blocking the binding of RNA to eIF4A, both of which are required events in the function of eIF4A helicase. The structure, together with biochemical analyses, reveals insights into the inhibition mechanism of eIF4A by PDCD4 and provides a framework for designing chemicals that target eIF4A.
C1 [Chang, Jeong Ho; Cho, Yong Hyun; Sohn, Sun Young; Choi, Jung Min; Cho, Yunje] Pohang Univ Sci & Technol, Natl Creat Initiat Struct Biol, Pohang, Kyungbook, South Korea.
[Chang, Jeong Ho; Cho, Yong Hyun; Sohn, Sun Young; Choi, Jung Min; Kim, Ahreum; Jang, Sung Key; Cho, Yunje] Pohang Univ Sci & Technol, Dept Life Sci, Pohang, Kyungbook, South Korea.
[Kim, Young Chang] Struct Biol Ctr, Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
RP Cho, Y (reprint author), Pohang Univ Sci & Technol, Natl Creat Initiat Struct Biol, San31, Pohang, Kyungbook, South Korea.
EM yunje@postech.ac.kr
FU National Creative Research Initiatives
FX We thank WooJae Kim and JunHyun Kim for help with translation assays.
This work was supported by the National Creative Research Initiatives.
NR 22
TC 54
Z9 60
U1 1
U2 6
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 3
PY 2009
VL 106
IS 9
BP 3148
EP 3153
DI 10.1073/pnas.0808275106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 414DM
UT WOS:000263844100033
PM 19204291
ER
PT J
AU Zhang, Z
Alpert, D
Francis, R
Chatterjee, B
Yu, Q
Tansey, T
Sabol, SL
Cui, C
Bai, YL
Koriabine, M
Yoshinaga, Y
Cheng, JF
Chen, F
Martin, J
Schackwitz, W
Gunn, TM
Kramer, KL
De Jong, PJ
Pennacchio, LA
Lo, CW
AF Zhang, Zhen
Alpert, Deanne
Francis, Richard
Chatterjee, Bishwanath
Yu, Qing
Tansey, Terry
Sabol, Steven L.
Cui, Cheng
Bai, Yongli
Koriabine, Maxim
Yoshinaga, Yuko
Cheng, Jan-Fang
Chen, Feng
Martin, Joel
Schackwitz, Wendy
Gunn, Teresa M.
Kramer, Kenneth L.
De Jong, Pieter J.
Pennacchio, Len A.
Lo, Cecilia W.
TI Massively parallel sequencing identifies the gene Megf8 with ENU-induced
mutation causing heterotaxy
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE cardiogenesis; left-right; nodal
ID LEFT-RIGHT ASYMMETRY; LEFT-RIGHT AXIS; LATERAL PLATE; GENOME; MOUSE;
MICE; NODE; ESTABLISHMENT; GENERATION; MOLECULES
AB Forward genetic screens with ENU (N-ethyl-N-nitrosourea) mutagenesis can facilitate gene discovery, but mutation identification is often difficult. We present the first study in which an ENU-induced mutation was identified by massively parallel DNA sequencing. This mutation causes heterotaxy and complex congenital heart defects and was mapped to a 2.2-Mb interval on mouse chromosome 7. Massively parallel sequencing of the entire 2.2-Mb interval identified 2 single-base substitutions, one in an intergenic region and a second causing replacement of a highly conserved cysteine with arginine (C193R) in the gene Megf8. Megf8 is evolutionarily conserved from human to fruit fly, and is observed to be ubiquitously expressed. Morpholino knockdown of Megf8 in zebrafish embryos resulted in a high incidence of heterotaxy, indicating a conserved role in laterality specification. Megf8(C193R) mouse mutants show normal breaking of symmetry at the node, but Nodal signaling failed to be propagated to the left lateral plate mesoderm. Videomicroscopy showed nodal cilia motility, which is required for left-right patterning, is unaffected. Although this protein is predicted to have receptor function based on its amino acid sequence, surprisingly confocal imaging showed it is translocated into the nucleus, where it is colocalized with Gfi1b and Baf60C, two proteins involved in chromatin remodeling. Overall, through the recovery of an ENU-induced mutation, we uncovered Megf8 as an essential regulator of left-right patterning.
C1 [Zhang, Zhen; Alpert, Deanne; Francis, Richard; Chatterjee, Bishwanath; Yu, Qing; Tansey, Terry; Sabol, Steven L.; Cui, Cheng; Kramer, Kenneth L.; Lo, Cecilia W.] NHLBI, Dev Biol Lab, Bethesda, MD 20892 USA.
[Bai, Yongli; Koriabine, Maxim; Yoshinaga, Yuko; De Jong, Pieter J.] Childrens Hosp, Oakland Res Inst, BACPAC Resources Ctr, Oakland, CA 94609 USA.
[Cheng, Jan-Fang; Chen, Feng; Martin, Joel; Schackwitz, Wendy; Pennacchio, Len A.] US Dept Energy Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Gunn, Teresa M.] Cornell Univ, Coll Vet Med, Dept Biomed Sci, Ithaca, NY 14853 USA.
RP Lo, CW (reprint author), NHLBI, Dev Biol Lab, Bldg 10, Bethesda, MD 20892 USA.
EM loc@nhlbi.nih.gov
RI Francis, Richard/P-2524-2015;
OI Francis, Deanne/0000-0002-4158-1521; Gunn, Teresa/0000-0003-2688-6420;
Zhang, Zhen/0000-0002-9898-054X
FU National Institutes of Health; Department of Energy [DE-AC02-05CH11231]
FX We thank Blake Carrington for technical support, Drs. Stuart H. Orkin
and Yuko Fujiwara (Dana Farber Cancer Institute, Boston, MA) for
providing Gfi1b knockout embryos, and Drs. Michael Shen (Columbia
University Medical Center, New York) and Brent McCright (Center for
Biologics Evaluation and Research, U.S. Food and Drug Administration,
Bethesda, MD) for providing in situ hybridization probes. This work was
supported by National Institutes of Health grants (to C. L, and
P.J.D.J.), and Department of Energy Contract DE-AC02-05CH11231 (to
L.A.P.).
NR 32
TC 27
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U1 1
U2 4
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 3
PY 2009
VL 106
IS 9
BP 3219
EP 3224
DI 10.1073/pnas.0813400106
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 414DM
UT WOS:000263844100045
PM 19218456
ER
PT J
AU Pruess, K
AF Pruess, Karsten
TI Formation dry-out from CO2 injection into saline aquifers: 2. Analytical
model for salt precipitation
SO WATER RESOURCES RESEARCH
LA English
DT Article
ID MULTIPHASE FLOW; FRACTIONAL FLOW; SIMULATION
AB From a mass balance for water dissolved into the flowing CO2 stream and a consideration of saturation profiles from the Buckley-Leverett fractional flow theory, we derive an equation that directly relates gas saturation S-g,S-d at the dry-out front to temperature, pressure, and salinity dependence of fluid properties. The equation is easily solved by iteration or interpolation. From gas saturation at the front we derive the average gas saturation in the dry-out region, from which we obtain the "solid saturation'' S-S, i.e., the fraction of pore space filled with solid precipitate. Values of S-S derived from this theory show excellent agreement with numerical simulations presented in the preceding companion paper. Thus, from relative permeabilities and fluid properties at in situ conditions prior to CO2 injection, it is possible to directly make an accurate estimate of solids precipitation, without having to perform a numerical simulation of the injection process.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Pruess, K (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM k_pruess@lbl.gov
FU U. S. Department of Energy [DE-AC02-5CII11231]
FX Thanks are due to Yu-Shu Wu for a careful review of the manuscript and
the suggestion of improvements. I also thank Jan Nordbotten and three
anonymous reviewers for valuable suggestions that have improved the
paper. This work was supported by the Zero Emission Research and
Technology project (ZERT) under contract DE-AC02-5CII11231 with the U.
S. Department of Energy.
NR 17
TC 3
Z9 4
U1 4
U2 10
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0043-1397
J9 WATER RESOUR RES
JI Water Resour. Res.
PD MAR 3
PY 2009
VL 45
AR W03403
DI 10.1029/2008WR007102
PG 6
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 415TX
UT WOS:000263959600004
ER
PT J
AU Pruess, K
Muller, N
AF Pruess, Karsten
Muller, Nadja
TI Formation dry-out from CO2 injection into saline aquifers: 1. Effects of
solids precipitation and their mitigation
SO WATER RESOURCES RESEARCH
LA English
DT Article
ID GEOTHERMAL-RESERVOIRS; NUMERICAL-SIMULATION; MULTIPHASE FLOW; TRANSPORT;
DISPOSAL; BRINES; MEDIA; WATER; CODE; GAS
AB Injection of CO2 into saline aquifers may cause formation dry-out and precipitation of salt near the injection well, which may reduce formation porosity, permeability, and injectivity. This paper uses numerical simulation to explore the role of different processes and parameters in the salt precipitation process and to examine injection strategies that could mitigate the effects. The main physical mechanisms affecting the dry-out and salt precipitation process include (1) displacement of brine away from the injection well by injected CO2, (2) dissolution (evaporation) of brine into the flowing CO2 stream, (3) upflow of CO2 due to gravity effects (buoyancy), (4) backflow of brine toward the injection point due to capillary pressure gradients that oppose the pressure gradient in the CO2-rich ("gas'') phase, and (5) molecular diffusion of dissolved salt. The different mechanisms operate on a range of spatial scales. CO2 injection at constant rate into a homogeneous reservoir with uniform initial conditions is simulated in 1-D radial geometry, to resolve multiscale processes by taking advantage of the similarity property, i.e., the evolution of system conditions as a function of radial distance R and time t depends only on the similarity variable R-2/t. Simulations in 2-D vertical cross sections are used to examine the role of gravity effects. We find that counterflow of CO2 and brine can greatly increase aqueous phase salinity and can promote substantial salt precipitation even in formations with low dissolved solids. Salt precipitation can accentuate effects of gravity override. We find that injecting a slug of fresh water prior to commencement of CO2 injection can reduce salt precipitation and permeability loss near the injection well.
C1 [Pruess, Karsten] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Muller, Nadja] Shell Explorat & Prod, Exploratory Res, NL-2288 GS Rijswijk, Netherlands.
RP Pruess, K (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM k_pruess@lbl.gov
FU Zero Emission Research and Technology project (ZERT) with the U.S.
Department of Energy [DE-AC02-05CH11231]
FX Thanks are due to Christine Doughty for a careful review of the
manuscript and the suggestion of improvements. We also thank two
anonymous reviewers for their comments and suggestions. This work was
supported by the Zero Emission Research and Technology project (ZERT)
under contract DE-AC02-05CH11231 with the U.S. Department of Energy.
NR 29
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U1 4
U2 22
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 MAR 3
PY 2009
VL 45
AR W03402
DI 10.1029/2008WR007101
PG 11
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 415TX
UT WOS:000263959600003
ER
PT J
AU Park, MY
Hong, SB
Kim, JY
Kim, YS
Buhlmann, S
Kim, YK
No, KS
AF Park, Moonkyu
Hong, Seungbum
Kim, Jiyoon
Kim, Yunseok
Buehlmann, Simon
Kim, Yong Kwan
No, Kwangsoo
TI Piezoresponse force microscopy studies of PbTiO3 thin films grown via
layer-by-layer gas phase reaction
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE electric domains; ferroelectric coercive field; ferroelectric switching;
ferroelectric thin films; lead compounds; sputter deposition
ID FERROELECTRIC DOMAINS; FATIGUE
AB We fabricated 20 nm thick PbTiO3 films via reactive magnetron sputtering and studied the domain switching phenomena and retention properties using piezoresponse force microscopy. We found that multistep deposited PbTiO3 thin films showed 29% smaller rms roughness (2.5 versus 3.5 nm), 28% smaller coercive voltage (1.68 versus 2.32 V), 100% higher d(33) value, and improved retention characteristic (89% versus 52% of remained poled domain area in 1280 min after poling) than single-step deposited PbTiO3 thin films. We attribute the improvement to the more complete chemical reaction between PbO and TiO2 during the film growth.
C1 [Park, Moonkyu; Hong, Seungbum] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Kim, Yong Kwan] Samsung Elect Co Ltd, Semicond R&D Ctr, Yongin 449771, South Korea.
[Buehlmann, Simon] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England.
[Park, Moonkyu; Kim, Jiyoon; Kim, Yunseok; No, Kwangsoo] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea.
RP Hong, SB (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM hong@anl.gov; ksno@kaist.ac.kr
RI Buehlmann, Simon/B-4838-2010; No, Kwangsoo/G-4891-2010; No,
Kwangsoo/C-1983-2011; Hong, Seungbum/B-7708-2009
OI Hong, Seungbum/0000-0002-2667-1983
FU Samsung Advanced Institute of Technology; Korea Science and Engineering
Foundation (KOSEF) [R01-2007-000-10953-0]; U.S. DOE Office of Science
Laboratory [DE-AC02-06CH11357]
FX The authors gratefully acknowledge the financial support of Samsung
Advanced Institute of Technology and the Korea Science and Engineering
Foundation (KOSEF) (Grant No. R01-2007-000-10953-0). The submitted
manuscript has been in part created by UChicago Argonne, LLC, Operator
of Argonne National Laboratory ("Argonne"). Argonne, a U.S. DOE Office
of Science Laboratory, is operated under Contract No. DE-AC02-06CH11357.
The authors thank D. Fong and R. P. Nath for critical readings of the
manuscript.
NR 12
TC 14
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U1 1
U2 8
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 2
PY 2009
VL 94
IS 9
AR 092901
DI 10.1063/1.3081120
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100055
ER
PT J
AU Siemens, ME
Li, Q
Murnane, MM
Kapteyn, HC
Yang, RG
Anderson, EH
Nelson, KA
AF Siemens, Mark E.
Li, Qing
Murnane, Margaret M.
Kapteyn, Henry C.
Yang, Ronggui
Anderson, Erik H.
Nelson, Keith A.
TI High-frequency surface acoustic wave propagation in nanostructures
characterized by coherent extreme ultraviolet beams
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE acoustic dispersion; acoustic wave propagation; acousto-optical effects;
nanostructured materials; nickel; sapphire; surface acoustic waves
AB We study ultrahigh frequency surface acoustic wave propagation in nickel-on-sapphire nanostructures. The use of ultrafast, coherent, extreme ultraviolet beams allows us to extend optical measurements of propagation dynamics of surface acoustic waves to frequencies of nearly 50 GHz, corresponding to wavelengths as short as 125 nm. We repeat the measurement on a sequence of nanostructured samples to observe surface acoustic wave dispersion in a nanostructure series. These measurements are critical for accurate characterization of interfaces beneath very thin films using this technique.
C1 [Siemens, Mark E.; Li, Qing; Murnane, Margaret M.; Kapteyn, Henry C.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Nelson, Keith A.] MIT, Dept Chem, Cambridge, MA 02139 USA.
[Anderson, Erik H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Yang, Ronggui] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA.
[Siemens, Mark E.; Li, Qing; Murnane, Margaret M.; Kapteyn, Henry C.] Univ Colorado, JILA, Boulder, CO 80309 USA.
RP Siemens, ME (reprint author), Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
EM siemens@colorado.edu
RI Yang, Ronggui/H-1278-2011; Kapteyn, Henry/H-6559-2011
OI Kapteyn, Henry/0000-0001-8386-6317
FU Chemical Sciences, Geosciences, and Biosciences Division of the Office
of Basic Energy Sciences; U.S. Department of Energy [DE-FG02-00ER15087];
NSF Engineering Research Center; EUV Science and Technology
FX This work was supported by the Chemical Sciences, Geosciences, and
Biosciences Division of the Office of Basic Energy Sciences, U.S.
Department of Energy, Grant No. DE-FG02-00ER15087 and the NSF
Engineering Research Center in EUV Science and Technology.
NR 12
TC 38
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U1 1
U2 22
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 MAR 2
PY 2009
VL 94
IS 9
AR 093103
DI 10.1063/1.3090032
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100063
ER
PT J
AU Tomiyasu, K
Fujita, M
Kolesnikov, AI
Bewley, RI
Bull, MJ
Bennington, SM
AF Tomiyasu, K.
Fujita, M.
Kolesnikov, A. I.
Bewley, R. I.
Bull, M. J.
Bennington, S. M.
TI Conversion method of powder inelastic scattering data for
one-dimensional systems
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE magnetic structure; neutron diffraction; powders
ID COMPOUND (VO)(2)P2O7; EXCITATIONS
AB Extracting dispersive magnetic excitations from inelastic neutron scattering data usually requires large single crystals. We present a simple yet powerful method for extracting such information from polycrystalline or powder data for one-dimensional systems. We demonstrate the effectiveness of this data treatment by extracting dispersion curves from powder inelastic neutron scattering data on the one-dimensional spin-half systems: CuGeO(3) and Rb(2)Cu(2)Mo(3)O(12). For many such materials, it is not possible to grow sufficiently large crystals and this method offers a quick and efficient way to study their magnetic excitations.
C1 [Tomiyasu, K.] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan.
[Fujita, M.] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan.
[Kolesnikov, A. I.] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA.
[Bewley, R. I.; Bull, M. J.; Bennington, S. M.] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England.
RP Tomiyasu, K (reprint author), Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan.
EM tomiyasu@imr.tohoku.ac.jp
RI Fujita, Masaki/D-8430-2013; Kolesnikov, Alexander/I-9015-2012
OI Kolesnikov, Alexander/0000-0003-1940-4649
FU Ministry of Education, Culture, Sports, Science and Technology of Japan
[17001001]; Young Scientists [17684016]; Scientific Research [19340090];
Japan-UK Collaboration Program on Neutron Scattering; World Premier
International (WPI) Research Initiative; High Energy Accelerator
Research Organization (KEK); Argonne National Laboratory (ANL); Office
of Basic Energy Sciences; Division of Materials Sciences; U. S.
Department of Energy [DE-AC02-06CH11357]; UT-Battelle; LLC
[DE-AC05-00OR22725]
FX We thank Professors K. Yamada and K. Ohoyama for fruitful discussion,
Dr. C. D. Frost for providing us the single-crystal data, Drs. R.
Stevens, A. Llobet, and F. Trouw for preliminary neutron experiments on
Pharos at LANSCE, and Mrs. L. Jirik for the supports of neutron
experiments at IPNS. This work was supported mainly by Grants in Aid
from the Ministry of Education, Culture, Sports, Science and Technology
of Japan for Specially Promoted Research (Grant No. 17001001) and
partially by those for Young Scientists (A) (Grant No. 17684016) and
Scientific Research (B) (Grant No. 19340090), the Japan-UK Collaboration
Program on Neutron Scattering, World Premier International (WPI)
Research Initiative, and the collaboration on neutron science between
High Energy Accelerator Research Organization (KEK) and Argonne National
Laboratory (ANL). The experiments at ANL were supported by the Office of
Basic Energy Sciences, Division of Materials Sciences, U. S. Department
of Energy, under Contract No. DE-AC02-06CH11357, and work at ORNL/SNS
was managed by UT-Battelle, LLC, for the U. S. Department of Energy
under contract DE-AC05-00OR22725.
NR 7
TC 3
Z9 3
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 2
PY 2009
VL 94
IS 9
AR 092502
DI 10.1063/1.3089566
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100049
ER
PT J
AU Wang, YB
Ho, JC
Cao, Y
Liao, XZ
Li, HQ
Zhao, YH
Lavernia, EJ
Ringer, SP
Zhu, YT
AF Wang, Y. B.
Ho, J. C.
Cao, Y.
Liao, X. Z.
Li, H. Q.
Zhao, Y. H.
Lavernia, E. J.
Ringer, S. P.
Zhu, Y. T.
TI Dislocation density evolution during high pressure torsion of a
nanocrystalline Ni-Fe alloy
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE deformation; dislocation density; grain boundaries; high-pressure
effects; iron alloys; nanostructured materials; nickel alloys; torsion;
transmission electron microscopy; X-ray diffraction
ID MOLECULAR-DYNAMICS SIMULATION; GRAIN-GROWTH; PLASTIC-DEFORMATION;
NICKEL; BOUNDARIES; METALS; COPPER; AL
AB High-pressure torsion (HPT) induced dislocation density evolution in a nanocrystalline Ni-20 wt %Fe alloy was investigated using x-ray diffraction and transmission electron microscopy. Results suggest that the dislocation density evolution is fundamentally different from that in coarse-grained materials. The HPT process initially reduces the dislocation density within nanocrystalline grains and produces a large number of dislocations located at small-angle subgrain boundaries that are formed via grain rotation and coalescence. Continuing the deformation process eliminates the subgrain boundaries but significantly increases the dislocation density in grains. This phenomenon provides an explanation of the mechanical behavior of some nanostructured materials.
C1 [Wang, Y. B.; Ho, J. C.; Cao, Y.; Liao, X. Z.] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia.
[Li, H. Q.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Zhao, Y. H.; Lavernia, E. J.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Ringer, S. P.] Univ Sydney, Australian Key Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia.
[Zhu, Y. T.] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
RP Liao, XZ (reprint author), Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia.
EM xliao@usyd.edu.au
RI Lavernia, Enrique/I-6472-2013; Zhu, Yuntian/B-3021-2008; Li,
Hongqi/B-6993-2008; Liao, Xiaozhou/B-3168-2009; Wang, Yanbo/B-3175-2009;
Zhao, Yonghao/A-8521-2009; Cao, Yang/C-4942-2011; Ringer,
Simon/E-3487-2012; Lujan Center, LANL/G-4896-2012
OI Lavernia, Enrique/0000-0003-2124-8964; Zhu, Yuntian/0000-0002-5961-7422;
Liao, Xiaozhou/0000-0001-8565-1758; Ringer, Simon/0000-0002-1559-330X;
FU Australian Research Council [DP0772880]; Los Alamos National Laboratory;
Office of Naval Research [N00014-041-0370, N00014-08-1-0405]; U. S. DOE
IPP Program
FX The authors are grateful for scientific and technical input and support
from the Australian Microscopy & Microanalysis Research Facility node at
the University of Sydney. This project is supported by the Australian
Research Council [Grant No. DP0772880 (Y.B.W., J.C.H, Y.C., and
X.Z.L.)], the LDRD program of Los Alamos National Laboratory (H.Q.L.),
Office of Naval Research [Grant Nos. N00014-041-0370 and
N00014-08-1-0405 (Y.H.Z. and E.J.L.)], and the U. S. DOE IPP Program
(Y.T.Z.).
NR 22
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U1 2
U2 32
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 2
PY 2009
VL 94
IS 9
AR 091911
DI 10.1063/1.3095852
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100033
ER
PT J
AU Yang, G
Ramasse, Q
Klie, RF
AF Yang, Guang
Ramasse, Quentin
Klie, Robert F.
TI Direct measurement of Co-ion spin state transitions in Ca3Co4O9 using
variable-temperature electron energy-loss spectroscopy
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE calcium compounds; electrical resistivity; electron energy loss spectra;
heat treatment; magnetic susceptibility; solid-state phase
transformations; spin dynamics
ID GRAIN-BOUNDARIES; OXIDES; MISFIT
AB Previous studies of Ca3Co4O9 suggested that the abrupt changes in the magnetic susceptibility and electrical resistivity at similar to 420 K can be attributed to Co spin state transitions. In this letter, we study the possible transitions above 420 K by variable-temperature Z-contrast imaging and electron energy-loss spectroscopy. We find that there is no observable change in the structure and Co valence state upon in situ heating to 500 K, compared to room temperature. However, an intensity decrease of the prepeak in the O K-edge near edge fine structure indicates a Co3+-ion spin state transition has occurred from a low to an intermediate spin state.
C1 [Yang, Guang; Klie, Robert F.] Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
[Ramasse, Quentin] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RP Yang, G (reprint author), Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
EM guangy@uic.edu
RI Yang, Guang/C-9022-2011
OI Yang, Guang/0000-0003-1117-1238
NR 18
TC 15
Z9 15
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 MAR 2
PY 2009
VL 94
IS 9
AR 093112
DI 10.1063/1.3081118
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100072
ER
PT J
AU Zhang, Y
Jiang, CS
Friedman, DJ
Geisz, JF
Mascarenhas, A
AF Zhang, Yong
Jiang, C. -S.
Friedman, D. J.
Geisz, J. F.
Mascarenhas, A.
TI Tailoring the electronic properties of GaxIn1-xP beyond simply varying
alloy composition
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE electroreflectance; energy gap; gallium compounds; III-V semiconductors;
indium compounds; scanning probe microscopy; semiconductor epitaxial
layers
ID OPTICAL-PROPERTIES; ORDERED GAINP2; POLARIZATION; GAINP/GAAS;
ELECTROREFLECTANCE; SUPERLATTICES; MICROSCOPY; FIELDS
AB Spontaneous ordering in GaxIn1-xP provides the possibility of tuning electronic structure and improving transport properties. A quasiperiodic twinning structure of two ordered variants offers additional flexibilities in designing the material properties. The superstructure is shown to have distinctively different electronic and electrical properties from the single-variant ordered structure, as revealed in polarized elecroreflectance and cross-sectional scanning Kelvin probe force microscopy measurements. The entire potentially accessible range of the "direct" bandgap is defined for this alloy system, and thus the optimal bandgap for any intended application can be achieved through the interplay of the effects of alloying, ordering, and domain structure engineering.
C1 [Zhang, Yong; Jiang, C. -S.; Friedman, D. J.; Geisz, J. F.; Mascarenhas, A.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Zhang, Y (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM yong_zhang@nrel.gov
RI jiang, chun-sheng/F-7839-2012
FU DOE-OS-BES [DE-AC36-08GO28308]
FX We thank R. Reedy for SIMS and M. Young for C-V measurements and J. M.
Olson, S.-H. Wei and W. Metzger for helpful discussions. This work was
supported by the DOE-OS-BES under Contract No. DE-AC36-08GO28308 to
NREL.
NR 24
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U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAR 2
PY 2009
VL 94
IS 9
AR 091113
DI 10.1063/1.3094918
PG 3
WC Physics, Applied
SC Physics
GA 423VF
UT WOS:000264523100013
ER
PT J
AU Doherty, MD
Grills, DC
Fujita, E
AF Doherty, Mark D.
Grills, David C.
Fujita, Etsuko
TI Synthesis of Fluorinated ReCl(4,4 '-R-2-2,2 '-bipyridine)(CO)(3)
Complexes and Their Photophysical Characterization in CH3CN and
Supercritical CO2
SO INORGANIC CHEMISTRY
LA English
DT Article
ID CARBON-DIOXIDE; PHOTOCATALYTIC REDUCTION; PHOTOINDUCED REDUCTION;
HOMOGENEOUS CATALYSTS; EXCITED-STATE; RE-RE;
TRICARBONYLBROMO(2,2'-BIPYRIDINE)RHENIUM(I); LIGANDS
AB Two new CO2-soluble rhenium(I) bipyridine complexes bearing the fluorinated alkyl ligands 4,4'-(C6F13CH2CH2CH2)(2)-2,2'-bipyridine (1a), and 4,4'-(C8F17CH2CH2CH2)(2)-2,2'-bipyridine (1b) have been prepared and their photophysical properties investigated in CH3CN and supercritical CO2. Electrochemical and spectroscopic characterization of these complexes in CH3CN suggests that the three methylene units effectively insulate the bipyridyl rings and the rhenium center from the electron-withdrawing effect of the fluorinated alkyl chains. Reductive quenching of the metal-to-ligand charge-transter excited states with triethylamine reveals quenching rate constants in supercritical CO2 that are only 6 times slower than those in CH3CN.
C1 [Doherty, Mark D.; Grills, David C.; Fujita, Etsuko] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Grills, DC (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM dcgrills@bnl.gov
RI Fujita, Etsuko/D-8814-2013; Grills, David/F-7196-2016
OI Grills, David/0000-0001-8349-9158
FU Brookhaven National Laboratory [DE-AC02-98CH10886]
FX We thank Prof. Mike George and Dr. Alex Cowan (University of Nottingham,
Nottingham, U.K.) for the provision of the high-pressure spectroscopic
cell and for valuable discussions. This work was performed at Brookhaven
National Laboratory and funded under Contract DE-AC02-98CH10886 with the
U.S. Department of Energy.
NR 20
TC 23
Z9 23
U1 2
U2 20
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 MAR 2
PY 2009
VL 48
IS 5
BP 1796
EP +
DI 10.1021/ic8019556
PG 4
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 411RM
UT WOS:000263667700005
PM 19235939
ER
PT J
AU Ma, SQ
Yuan, DQ
Wang, XS
Zhou, HC
AF Ma, Shengqian
Yuan, Daqiang
Wang, Xi-Sen
Zhou, Hong-Cai
TI Microporous Lanthanide Metal-Organic Frameworks Containing
Coordinatively Linked Interpenetration: Syntheses, Gas Adsorption
Studies, Thermal Stability Analysis, and Photoluminescence Investigation
SO INORGANIC CHEMISTRY
LA English
DT Article
ID FIXED-BED ADSORPTION; PERMANENT POROSITY; HYDROGEN STORAGE; BUILDING
UNITS; SORPTION PROPERTIES; SELECTIVE SORPTION; POROUS MATERIAL;
SEPARATION; SITES; POLYMERS
AB Under solvothermal conditions, the reactions of trigonal-planar ligand, TATB (4,4',4 ''-s-triazine-2,4,6-triyl-tribenzoate) with Dy(NO(3))(3), Er(NO(3))(3), Y(NO(3))(3), Yb(NO(3))(3), gave rise to four microporous lanthanide metal-organic frameworks (MOFs), designated as PCN-17 (Dy), PCN-17 (Er), PCN-17 (Y), and PCN-17 (Yb), respectively. The four porous MOFs are isostructural, with their crystal unit parameters shrinking in the order of PCN-17 (Dy), PCN-17 (Y), PCN-17 (Er), and PCN-17 (Yb), which also reflects the lanthanides' contraction trend. All of them adopt the novel square-planar Ln(4)(mu(4)-H(2)O) cluster as the secondary building unit and contain coordinatively linked doubly interpenetrated (8,3)-connected nets. In addition to exhibiting interesting photoluminescence phenomena, the coordinatively linked interpenetration restricts the pore sizes and affords them selective adsorption of H(2) and O(2) over N(2) and CO, as well as renders them with high thermal stability of 500-550 degrees C as demonstrated from TGA profiles.
C1 [Ma, Shengqian; Zhou, Hong-Cai] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA.
Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Ma, SQ (reprint author), Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77842 USA.
EM sma@anl.gov; zhou@mail.chem.tamu.edu
RI wang, Xi-Sen/B-1102-2011; Ma, Shengqian/B-4022-2012; Zhou,
Hong-Cai/A-3009-2011; Yuan, Daqiang/F-5695-2010;
OI Ma, Shengqian/0000-0002-1897-7069; Zhou, Hong-Cai/0000-0002-9029-3788;
Yuan, Daqiang/0000-0003-4627-072X; Zhou, Hong-Cai/0000-0003-0115-408X
FU U.S. Department of Energy [DE-FC36-07GO17033]; U.S. National Science
Foundation [CHE-0449634]; Research Corporation for a Cottrell Scholar
Award; Air Products for a Faculty Excellence Award
FX This work was supported by the U.S. Department of Energy
(DE-FC36-07GO17033) and the U.S. National Science Foundation
(CHE-0449634). H.-C. Z. acknowledges the Research Corporation for a
Cottrell Scholar Award and Air Products for a Faculty Excellence Award.
S.M. acknowledges Dr. Yujuan Liu for the photoluminescent measurements
and the Director's Postdoctoral Fellowship from Argonne National
Laboratory.
NR 77
TC 149
Z9 149
U1 9
U2 81
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 MAR 2
PY 2009
VL 48
IS 5
BP 2072
EP 2077
DI 10.1021/ic801948z
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 411RM
UT WOS:000263667700036
PM 19235968
ER
PT J
AU Cantat, T
Scott, BL
Morris, DE
Kiplinger, JL
AF Cantat, Thibault
Scott, Brian L.
Morris, David E.
Kiplinger, Jaclueline L.
TI What a Difference a 5f Element Makes: Trivalent and Tetravalent Uranium
Halide Complexes Supported by One and Two
Bis[2-(diisopropylphosphino)-4-methylphenyl]amido (PNP) Ligands
SO INORGANIC CHEMISTRY
LA English
DT Review
ID RAY CRYSTAL-STRUCTURES; FUNCTIONAL THEORY ANALYSIS; MIXED-VALENCE
URANIUM; F-BLOCK METALS; X-RAY; PINCER LIGAND; MULTIPLE-BOND;
ELECTRONIC-STRUCTURE; PHOSPHINE COMPLEXES; MOLECULAR-STRUCTURE
AB The coordination behavior of the bis[2-(diisopropylphosphino)-4-methylphenyljamido ligand (PNP) toward Ul(3)(THF)(4) and UCl(4) has been investigated to access new uranium(III) and uranium(IV) halide complexes supported by one and two PNP ligands. The reaction between (PNP)K (6) and 1 equiv of Ul(3)(THF)(4) afforded the trivalent halide complex (PNP)Ul(2)(4-(t)Bu-pyhdine)(2) (7) in the presence of 4-tert-butylpyridine. The same reaction carded out with UCl(4) and no donor ligand gave [(PNP)[(PNP)UCl(3)](2) (8), in which the uranium coordination sphere in the (PNP)UCl(3) unit is completed by a bridging chloride ligand. When UCl(4) is reacted with 1 equiv (PNP)K (6) in the presence of THF, trimethylphosphine oxide (TMPO), or triphenylphosphineoxide (TPPO), the tetravalent halide complexes (PNP)UCl(3)(THF) (9), (PNP)UCl(3)(TMPO)(2) (10), and (PNP)UCl(3)(TPPO) (11), respectively, are formed in excellent yields. The bis(PNP) complexes of uranium(III), (PNP)(2)Ul (12), and uranium(IV), (PNP)(2)UCl(2) (13), were easily isolated from the analogous reactions between 2 equiv of 6 and Ul(3)(THF)(4) or UCl(4), respectively. Complexes 12 and 13 represent the first examples of complexes featuring two PNP ligands coordinated to a single metal center. Complexes 7-13 have been characterized by single-crystal X-ray diffraction and (1)H and (31)P NMR spectroscopy. The X-ray structures demonstrate the ability of the PNP ligand to adopt new coordination modes upon coordination to uranium. The PNP ligand can adopt both pseudo-meridional and pseudo-facial geometries when it is kappa(3)-(P,N,P) coordinated, depending on the steric demand at the uranium metal center. Additionally, its hemilabile character was demonstrated with an unusual K(2)-(P,N) coordination mode that is maintained in both the solid-state and in solution. Comparison of the structures of the mono(PNP) and bis(PNP) complexes 7, 9, 11-13 with their respective C(3)Me(5) analogues 1-4 undoubtedly show that a more sterically congested environment is provided by the PNP ligand. The electronic influence of replacing the C(5)Me(5) ligands with PNP was investigated using electronic absorption spectroscopy and electrochemistry. For 12 and 13, a chemically reversible wave corresponding to the U(IV)/U(III) redox transformation comparable to that for 3 and 4 was observed. However, a similar to 350 mV shift of this couple to more negative potentials was observed on substitution of the bis(C(5)Me(5)) by the bis(PNP) framework, therefore pointing to a greater electronic density at the metal center in the PNP complexes. The UV-visible region of the electronic spectra for the mono(PNP) and bis(PNP) complexes appear to be dominated by PNP ligand-based transitions that are shifted to higher energy in the uranium complexes than in the simple ligand anion (6) spectrum, for both the U(VI) and U(III) oxidation states. The near IR region in complexes 1-4 and 7, 9, 11-13 is dominated by f-f transitions derived from the 5f(3) and 5f(2) valence electronic configuration of the metal center.
Though complexes of both ligand sets exhibit similar intensities in their f-f bands, a somewhat larger ligand-field splitting was observed for the PNP system, consistent with its higher electon donating ability.
C1 [Cantat, Thibault; Scott, Brian L.; Morris, David E.; Kiplinger, Jaclueline L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Morris, DE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM kiplinger@lanl.gov
RI Cantat, Thibault/A-8167-2010; Morris, David/A-8577-2012; Kiplinger,
Jaqueline/B-9158-2011; Scott, Brian/D-8995-2017
OI Cantat, Thibault/0000-0001-5265-8179; Kiplinger,
Jaqueline/0000-0003-0512-7062; Scott, Brian/0000-0003-0468-5396
FU LANL; Division of Chemical Sciences, Office of Basic Energy Sciences,
Heavy Element Chemistry; National Nuclear Security Administration of the
U.S. Department of Energy [DE-AC5206NA25396]
FX For financial support of this work, we acknowledge LANL (Director's PD
Fellowship to T.C.), and the Division of Chemical Sciences, Office of
Basic Energy Sciences, Heavy Element Chemistry program. We are also
thankful to Prof. Oleg V. Ozerov (Brandeis University) for providing the
initial samples of (PNP)H (5) used in this work. 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-AC5206NA25396.
NR 111
TC 26
Z9 26
U1 4
U2 25
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 MAR 2
PY 2009
VL 48
IS 5
BP 2114
EP 2127
DI 10.1021/ic802061x
PG 14
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 411RM
UT WOS:000263667700040
PM 19166305
ER
PT J
AU Tang, JK
Costa, JS
Smulders, S
Molnar, G
Bousseksou, A
Teat, SJ
Li, YG
van Albada, GA
Gamez, P
Reedijk, J
AF Tang, Jinkui
Costa, Jose Sanchez
Smulders, Simon
Molnar, Gabor
Bousseksou, Azzedine
Teat, Simon J.
Li, Yangguang
van Albada, Gerard A.
Gamez, Patrick
Reedijk, Jan
TI Two-Step Spin-Transition Iron(III) Compound with a Wide [High Spin-Low
Spin] Plateau
SO INORGANIC CHEMISTRY
LA English
DT Article
ID LARGE THERMAL HYSTERESIS; MAGNETIC-PROPERTIES; CROSSOVER COMPOUNDS;
CRYSTAL-STRUCTURES; MOSSBAUER-SPECTRA; PHASE-TRANSITION;
ROOM-TEMPERATURE; COMPLEXES; STATE; MONONUCLEAR
AB A new iron(III) coordination compound exhibiting a two-step spin-transition behavior with a remarkably wide [HS-LS] plateau of about 45 K has been synthesized from a hydrazino Schiff-base ligand with an N,N,O donor set, namely 2-methoxy-6-(pyridine-2-ylhydrazonomethyl) phenol (Hmph). The single-crystal X-ray structure of the coordination compound {[Fe(mph)(2)](ClO(4))(MeOH)(0.5)(H(2)O)(0.5)}(2) (1) determined at 150 K reveals the presence of two slightly different iron(III) centers in pseudo-octahedral environments generated by two deprotonated tridentate mph ligands. The presence of hydrogen bonding interactions, instigated by the well-designed ligand, may justify the occurrence of the abrupt transitions. 1 has been characterized by temperature-dependent magnetic susceptibility measurements, EPR spectroscopy, differential scanning calorimetry, and (51)Fe Mossbauer spectroscopy, which all confirm the occurrence of a two-step transition. In addition, the iron(III) species in the high-spin state has been trapped and characterized by rapid cooling EPR studies.
C1 [Tang, Jinkui; Costa, Jose Sanchez; Smulders, Simon; van Albada, Gerard A.; Gamez, Patrick; Reedijk, Jan] Leiden Univ, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands.
[Tang, Jinkui] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China.
[Molnar, Gabor; Bousseksou, Azzedine] CNRS, Chim Coordinat Lab, UPR 8241, F-31077 Toulouse, France.
[Teat, Simon J.] Univ Calif Berkeley, Lawrence Berkeley Lab, ALS, Berkeley, CA 94720 USA.
[Li, Yangguang] NE Normal Univ, Dept Chem, Inst Polyoxometalate Chem, Key Lab Polyoxometalate Sci,Ministry Educ, Changchun 130024, Peoples R China.
RP Gamez, P (reprint author), Leiden Univ, Leiden Inst Chem, POB 9502, NL-2300 RA Leiden, Netherlands.
EM reedijk@chem.leidenuniv.nl
RI Reedijk, Jan/F-1992-2010; Gamez, Patrick/B-3610-2012; Tang,
Jinkui/A-1830-2014; Sanchez Costa, Jose/N-9085-2014; Bousseksou,
Azzedine/M-4559-2016; Molnar, Gabor/Q-6874-2016
OI Reedijk, Jan/0000-0002-6739-8514; Gamez, Patrick/0000-0003-2602-9525;
Tang, Jinkui/0000-0002-8600-7718; Sanchez Costa,
Jose/0000-0001-5426-7956; Molnar, Gabor/0000-0001-6032-6393
FU COST Action [D35/0011]; Network of Excellence "Magmanet" [515767]; U.S.
Department of Energy [DE-AC02-05CH11231]; National Natural Science
Foundation of China [20841001, 20871113]
FX COST Action D35/0011 and coordination by the FP6 Network of Excellence
"Magmanet" (contract number 515767) are kindly acknowledged. The
Advanced Light Source is supported by the Director, Office of Science,
Office of Basic Energy Sciences, of the U.S. Department of Energy under
Contract No. DE-AC02-05CH11231. J.K. acknowledges the National Natural
Science Foundation of China (Grants 20841001 and 20871113).
NR 53
TC 39
Z9 39
U1 3
U2 33
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 MAR 2
PY 2009
VL 48
IS 5
BP 2128
EP 2135
DI 10.1021/ic801973x
PG 8
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 411RM
UT WOS:000263667700041
PM 19235971
ER
PT J
AU Yuan, ZJ
Luo, ZC
Ren, HG
Du, CW
Pan, YT
AF Yuan, Zhijia
Luo, Z. C.
Ren, H. G.
Du, C. W.
Pan, Yingtian
TI A digital frequency ramping method for enhancing Doppler flow imaging in
Fourier-domain optical coherence tomography
SO OPTICS EXPRESS
LA English
DT Article
ID RETINAL BLOOD-FLOW; MICRO-ANGIOGRAPHY; RESOLUTION; TRANSFORM; PERFUSION;
SPEED; SKIN
AB A digital frequency ramping method (DFRM) is proposed to improve the signal-to-noise ratio (SNR) of Doppler flow imaging in Fourier-domain optical coherence tomography (FDOCT). To examine the efficacy of DFRM for enhancing flow detection, computer simulation and tissue phantom study were conducted for phase noise reduction and flow quantification. In addition, the utility of this technique was validated in our in vivo clinical bladder imaging with endoscopic FDOCT. The Doppler flow images reconstructed by DFRM were compared with the counterparts by traditional Doppler FDOCT. The results demonstrate that DFRM enables real-time Doppler FDOCT imaging at significantly enhanced sensitivity without hardware modification, thus rendering it uniquely suitable for endoscopic subsurface blood flow imaging and diagnosis. (C) 2009 Optical Society of America
C1 [Yuan, Zhijia; Luo, Z. C.; Ren, H. G.; Pan, Yingtian] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA.
[Du, C. W.] SUNY Stony Brook, Dept Anesthesiol, Stony Brook, NY 11794 USA.
[Luo, Z. C.; Du, C. W.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
RP Pan, YT (reprint author), SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA.
EM Yingtian.Pan@sunysb.edu
RI yuan, zhijia/F-4314-2011; Ren, Hugang/G-7342-2011
FU NIH [2R01-DK059265, K25-DA021200]; Fusion Award
FX This work was supported in part by NIH Grants 2R01-DK059265 (YP),
K25-DA021200 (CD) and Fusion Award (YP). Correspondence can be addressed
to yingtian.pan@sunysb.edu.
NR 26
TC 11
Z9 11
U1 0
U2 2
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 MAR 2
PY 2009
VL 17
IS 5
BP 3951
EP 3963
DI 10.1364/OE.17.003951
PG 13
WC Optics
SC Optics
GA 417QJ
UT WOS:000264090900099
PM 19259236
ER
PT J
AU Yin, J
Li, L
Shaw, N
Li, Y
Song, JK
Zhang, WP
Xia, CF
Zhang, RG
Joachimiak, A
Zhang, HC
Wang, LX
Liu, ZJ
Wang, P
AF Yin, Jie
Li, Lei
Shaw, Neil
Li, Yang
Song, Jing Katherine
Zhang, Wenpeng
Xia, Chengfeng
Zhang, Rongguang
Joachimiak, Andrzej
Zhang, Hou-Cheng
Wang, Lai-Xi
Liu, Zhi-Jie
Wang, Peng
TI Structural Basis and Catalytic Mechanism for the Dual Functional
Endo-beta-N-Acetylglucosaminidase A
SO PLOS ONE
LA English
DT Article
ID TRANSGLYCOSYLATION ACTIVITY; ENHANCED TRANSGLYCOSYLATION;
OLIGOSACCHARIDE SYNTHESIS; COMPLEX OLIGOSACCHARIDES; CHEMOENZYMATIC
SYNTHESIS; GLYCOPROTEINS; GLYCOPEPTIDES; PURIFICATION; GLYCOSYNTHASES;
REFINEMENT
AB Endo-beta-N-acetylglucosaminidases (ENGases) are dual specificity enzymes with an ability to catalyze hydrolysis and transglycosylation reactions. Recently, these enzymes have become the focus of intense research because of their potential for synthesis of glycopeptides. We have determined the 3D structures of an ENGase from Arthrobacter protophormiae (Endo-A) in 3 forms, one in native form, one in complex with Man(3)GlcNAc-thiazoline and another in complex with GlcNAc-Asn. The carbohydrate moiety sits above the TIM-barrel in a cleft region surrounded by aromatic residues. The conserved essential catalytic residues - E173, N171 and Y205 are within hydrogen bonding distance of the substrate. W216 and W244 regulate access to the active site during transglycosylation by serving as "gate-keepers''. Interestingly, Y299F mutation resulted in a 3 fold increase in the transglycosylation activity. The structure provides insights into the catalytic mechanism of GH85 family of glycoside hydrolases at molecular level and could assist rational engineering of ENGases.
C1 [Yin, Jie; Shaw, Neil; Li, Yang; Liu, Zhi-Jie] Chinese Acad Sci, Inst Biophys, Natl Lab Biomacromol, Beijing 100080, Peoples R China.
[Yin, Jie; Li, Yang] Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China.
[Li, Lei; Zhang, Hou-Cheng; Wang, Peng] Shandong Univ, Natl Glycoengn Res Ctr, Shandong, Peoples R China.
[Li, Lei; Zhang, Hou-Cheng; Wang, Peng] Shandong Univ, Sch Life Sci, State Key Lab Microb Technol, Shandong, Peoples R China.
[Li, Lei; Song, Jing Katherine; Zhang, Wenpeng; Xia, Chengfeng; Wang, Peng] Ohio State Univ, Dept Biochem & Chem, Columbus, OH 43210 USA.
[Zhang, Rongguang; Joachimiak, Andrzej] Structural Biol Ctr, Argonne Natl Lab, Argonne, IL USA.
[Wang, Lai-Xi] Univ Maryland, Sch Med, Inst Human Virol, Baltimore, MD 21201 USA.
[Wang, Lai-Xi] Univ Maryland, Sch Med, Dept Biochem & Mol Biol, Baltimore, MD 21201 USA.
[Wang, Peng] Nankai Univ, Coll Pharm, Tianjin, Peoples R China.
[Wang, Peng] Nankai Univ, State Key Lab Elemento Organ Chem, Tianjin, Peoples R China.
RP Yin, J (reprint author), Chinese Acad Sci, Inst Biophys, Natl Lab Biomacromol, Beijing 100080, Peoples R China.
EM zjliu@ibp.ac.cn; pwang@sdu.edu.cn
RI Li, Yang/G-3685-2011; Liu, Zhi-Jie/A-3946-2012; Li, Yang/M-1246-2013;
Ying, Chieh/E-4296-2016; Yin, Jie/J-8932-2016
OI Liu, Zhi-Jie/0000-0001-7279-2893;
FU National Natural Science Foundation of China [20872068, 30721003,
30870483, 30700123]; Ministry of Health [2008ZX10404]; Ministry of
Science and Technology of China [2006AA02A316, 2006CB910901,
2006CB910903, 2007CB914803, 2007CB914403]; CAS [KSCX2-YW-R-127]
FX This work was funded by the National Natural Science Foundation of China
(Grants: 20872068, 30721003, 30870483 and 30700123), the Ministry of
Health (Grant 2008ZX10404), the Ministry of Science and Technology of
China (Grants 2006AA02A316, 2006CB910901, 2006CB910903, 2007CB914803 and
2007CB914403), CAS Research Grant (KSCX2-YW-R-127). The funders had no
role in study design, data collection and analysis, decision to publish,
or preparation of the manuscript.
NR 38
TC 28
Z9 28
U1 2
U2 14
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 MAR 2
PY 2009
VL 4
IS 3
AR e4658
DI 10.1371/journal.pone.0004658
PG 11
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 437LV
UT WOS:000265489900001
PM 19252736
ER
PT J
AU Yang, C
Meza, JC
Lee, B
Wang, LW
AF Yang, Chao
Meza, Juan C.
Lee, Byounghak
Wang, Lin-Wang
TI KSSOLV-A MATLAB Toolbox for Solving the Kohn-Sham Equations
SO ACM TRANSACTIONS ON MATHEMATICAL SOFTWARE
LA English
DT Article
DE Algorithms; Design; Planewave discretization; pseudopotential; nonlinear
eigenvalue problem; density functional theory (DFT); Kohn-Sham
equations; self-consistent field iteration (SCF); direct constrained
minimization (DCM); electronic structure calculation
ID ELECTRONIC-STRUCTURE CALCULATIONS; TOTAL-ENERGY CALCULATIONS; WAVE
BASIS-SET; PSEUDOPOTENTIAL CALCULATIONS; CONVERGENCE ACCELERATION;
MOLECULAR-DYNAMICS; ALGORITHM; ITERATION; CHEMISTRY; GAS
AB We describe the design and implementation of KSSOLV, a MATLAB toolbox for solving a class of nonlinear eigenvalue problems known as the Kohn-Sham equations. These types of problems arise in electronic structure calculations, which are nowadays essential for studying the microscopic quantum mechanical properties of molecules, solids, and other nanoscale materials. KSSOLV is well suited for developing new algorithms for solving the Kohn-Sham equations and is designed to enable researchers in computational and applied mathematics to investigate the convergence properties of the existing algorithms. The toolbox makes use of the object-oriented programming features available in MATLAB so that the process of setting up a physical system is straightforward and the amount of coding effort required to prototype, test, and compare new algorithms is significantly reduced. All of these features should also make this package attractive to other computational scientists and students who wish to study small-to medium-size systems.
C1 [Yang, Chao; Meza, Juan C.; Lee, Byounghak; Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Yang, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
EM CYang@lbl.gov; JCMeza@lbl.gov; byounghak@txstate.edu; LWWang@lbl.gov
RI Meza, Juan/B-5601-2012;
OI Meza, Juan/0000-0003-4543-0349
FU Director, Office of Science, Division of Mathematical, Information, and
Computational Sciences; U. S. Department of Energy [DE-AC03-76SF00098]
FX This work was supported by the Director, Office of Science, Division of
Mathematical, Information, and Computational Sciences of the U. S.
Department of Energy under contract number DE-AC03-76SF00098.
NR 54
TC 26
Z9 26
U1 4
U2 10
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 0098-3500
EI 1557-7295
J9 ACM T MATH SOFTWARE
JI ACM Trans. Math. Softw.
PD MAR
PY 2009
VL 36
IS 2
AR 10
DI 10.1145/1499096.1499099
PG 35
WC Computer Science, Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA 476VG
UT WOS:000268473700003
ER
PT J
AU Babayan, Y
McMahon, JM
Li, SZ
Gray, SK
Schatz, GC
Odom, TW
AF Babayan, Yelizaveta
McMahon, Jeffrey M.
Li, Shuzhou
Gray, Stephen K.
Schatz, George C.
Odom, Teri W.
TI Confining Standing Waves in Optical Corrals
SO ACS NANO
LA English
DT Article
DE near-field scanning optical microscopy; metal microstructures;
finite-difference time-domain calculations; dephasing; waveguide modes
ID QUANTUM CORRALS; SURFACE; SPECTROSCOPY; MIRAGES; ARRAYS; FILMS
AB Near-field scanning optical microscopy images of solid wall, circular, and elliptical microscale corrals show standing wave patterns confined inside the structures with a wavelength close to that of the incident light. The patterns inside the corrals can be tuned by changing the size and material of the walls, the wavelength of incident light, and polarization direction for elliptical corrals. Finite-difference time-domain calculations of the corral structures agree with the experimental observations and reveal that the electric and magnetic field intensities are out of phase inside the corral. A theoretical modal analysis indicates that the fields inside the corrals can be attributed to p- and s-polarized waveguide modes, and that the superposition of the propagating and evanescent modes can explain the phase differences between the fields. These experimental and theoretical results demonstrate that electromagnetic fields on a dielectric surface can be controlled in a predictable manner.
C1 [Babayan, Yelizaveta; McMahon, Jeffrey M.; Li, Shuzhou; Schatz, George C.; Odom, Teri W.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Odom, Teri W.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
[McMahon, Jeffrey M.; Gray, Stephen K.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Odom, TW (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM todom@northwestern.edu
RI Li, Shuzhou/E-3146-2010; Li, Shuzhou/A-2250-2011;
OI Li, Shuzhou/0000-0002-2159-2602; Odom, Teri/0000-0002-8490-292X
FU NSF MRSEC program at Northwestern University [DMR-0520513]; David and
Lucile Packard Foundation; U.S. Department of Energy
[DEFG02-03-ER15487]; NSF [DMR-0705741]; U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Chemical Sciences,
Geosciences, and Biosciences [DE-AC02-06CH11357]; Office of Science of
the U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the NSF MRSEC program at Northwestern
University (DMR-0520513), the David and Lucile Packard Foundation, the
U.S. Department of Energy (DEFG02-03-ER15487), and the NSF
(DMR-0705741). S.K.G. 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. 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 Contract DE-AC02-05CH11231.
NR 18
TC 33
Z9 33
U1 1
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
EI 1936-086X
J9 ACS NANO
JI ACS Nano
PD MAR
PY 2009
VL 3
IS 3
BP 615
EP 620
DI 10.1021/nn8008596
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 423ZL
UT WOS:000264535200019
PM 19243190
ER
PT J
AU Yu, F
Song, AX
Xu, CY
Sun, LH
Li, J
Tang, L
Yu, MM
Yeates, TO
Hu, HY
He, JH
AF Yu, Feng
Song, Aixin
Xu, Chunyan
Sun, Lihua
Li, Jian
Tang, Lin
Yu, Minmin
Yeates, Todd O.
Hu, Hongyu
He, Jianhua
TI Determining the DUF55-domain structure of human thymocyte nuclear
protein 1 from crystals partially twinned by tetartohedry
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID MULTIWAVELENGTH ANOMALOUS DIFFRACTION; INTENSITY STATISTICS; EXPRESSION;
CRYSTALLOGRAPHY; IDENTIFICATION; SOFTWARE; CLONING; DOMAIN; TOOLS; CELLS
AB Human thymocyte nuclear protein 1 contains a unique DUF55 domain consisting of 167 residues (55-221), but its cellular function remains unclear. Crystals of DUF55 belonged to the trigonal space group P3(1), but twinning caused the data to approach apparent 622 symmetry. Two data sets were collected to 2.3 angstrom resolution. Statistical analysis confirmed that both data sets were partially twinned by tetartohedry. Tetartohedral twin fractions were estimated. After the structure had been determined, only one twofold axis of rotational pseudosymmetry was found in the crystal structure. Using the DALI program, a YTH domain, which is a potential RNA-binding domain from human YTH-domain-containing protein 2, was identified as having the most similar three-dimensional fold to that of DUF55. It is thus implied that DUF55 might be a potential RNA-related domain.
C1 [Yu, Feng; Xu, Chunyan; Sun, Lihua; Li, Jian; Tang, Lin; He, Jianhua] Chinese Acad Sci, Shanghai Inst Appl Phys, Beijing 100864, Peoples R China.
[Song, Aixin; Hu, Hongyu] Chinese Acad Sci, Inst Biochem & Cell Biol, State Key Lab Mol Biol, Beijing 100864, Peoples R China.
[Yu, Minmin] Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA USA.
[Yu, Feng; Sun, Lihua; Li, Jian] Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China.
RP He, JH (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Beijing 100864, Peoples R China.
EM hejh@sinap.ac.cn
OI Yeates, Todd/0000-0001-5709-9839
FU Shanghai Natural Science Foundation [07JC14062]; National Natural
Science Foundation [10774155]
FX We would like to thank Professor Zongxiang Xia, Professor Bauke W.
Dijkstra and Karin van Straaten for help in the structure refinement.
Some of the diffraction data used in this study were collected at the
University of Science and Technology of China; we are grateful to
Professor Maikun Teng and Xiao Zhang. This work was supported by the
Shanghai Natural Science Foundation (Grant No. 07JC14062) and the
National Natural Science Foundation (Grant No. 10774155).
NR 41
TC 3
Z9 4
U1 0
U2 2
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0907-4449
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD MAR
PY 2009
VL 65
BP 212
EP 219
DI 10.1107/S0907444908041474
PG 8
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 410DV
UT WOS:000263558000002
PM 19237743
ER
PT J
AU McNamara, LK
Watterson, DM
Brunzelle, JS
AF McNamara, Laurie K.
Watterson, D. Martin
Brunzelle, Joseph S.
TI Structural insight into nucleotide recognition by human death-associated
protein kinase
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID CRYSTAL-STRUCTURE; CATALYTIC ACTIVITY; TUMOR SUPPRESSION; APOPTOSIS;
SUBSTRATE; ISCHEMIA; COMPLEX; INJURY; DOMAIN; MODEL
AB Death-associated protein kinase (DAPK) is a member of the Ca(2+)/calmodulin-regulated family of serine/threonine protein kinases. The role of the kinase activity of DAPK in eukaryotic cell apoptosis and the ability of bioavailable DAPK inhibitors to rescue neuronal death after brain injury have made it a drug-discovery target for neurodegenerative disorders. In order to understand the recognition of nucleotides by DAPK and to gain insight into DAPK catalysis, the crystal structure of human DAPK was solved in complex with ADP and Mg(2+) at 1.85 angstrom resolution. ADP is a product of the kinase reaction and product release is considered to be the rate-limiting step of protein kinase catalytic cycles. The structure of DAPK ADP-Mg(2+) was compared with a newly determined DAPK AMP-PNP-Mg(2+) structure and the previously determined apo DAPK structure (PDB code 1jks). The comparison shows that nucleotide-induced changes are localized to the glycine-rich loop region of DAPK.
C1 [Watterson, D. Martin; Brunzelle, Joseph S.] Northwestern Univ, Feinberg Sch Med, Dept Mol Pharmacol & Biol Chem, Evanston, IL 60208 USA.
[McNamara, Laurie K.; Watterson, D. Martin] Northwestern Univ, Ctr Drug Discovery & Chem Biol, Chicago, IL 60611 USA.
[Brunzelle, Joseph S.] Argonne Natl Lab, Adv Photon Source, Life Sci Collaborat Access Team, Argonne, IL 60439 USA.
RP Brunzelle, JS (reprint author), Northwestern Univ, Feinberg Sch Med, Dept Mol Pharmacol & Biol Chem, Evanston, IL 60208 USA.
EM j-brunzelle@northwestern.edu
OI Watterson, Daniel/0000-0001-7605-5866
FU National Institutes of Health [NS047586, NS056051]; US Department of
Energy, Office of Science, Office of Basic Energy Sciences
[W-31-109Eng-38]
FX We thank Drs Ludmilla Shuvalova, George Minasov and Wayne Anderson for
their assistance and advice. This research was supported by National
Institutes of Health awards NS047586 and NS056051 (DMW). Use of the APS
was supported by the US Department of Energy, Office of Science, Office
of Basic Energy Sciences under Contract No. W-31-109Eng-38.
NR 28
TC 10
Z9 10
U1 0
U2 4
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0907-4449
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD MAR
PY 2009
VL 65
BP 241
EP 248
DI 10.1107/S0907444908043679
PG 8
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 410DV
UT WOS:000263558000005
PM 19237746
ER
PT J
AU Urzhumtseva, L
Afonine, PV
Adams, PD
Urzhumtsev, A
AF Urzhumtseva, Ludmila
Afonine, Pavel V.
Adams, Paul D.
Urzhumtsev, Alexandre
TI Crystallographic model quality at a glance
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID LEAST-SQUARES REFINEMENT; PROTEIN DATA-BANK; MACROMOLECULAR STRUCTURES;
EXPECTED VALUES; VALIDATION; ACCURATE; TARGETS; DEVIATE; RATIO
AB A crystallographic macromolecular model is typically characterized by a list of quality criteria, such as R factors, deviations from ideal stereochemistry and average B factors, which are usually provided as tables in publications or in structural databases. In order to facilitate a quick model-quality evaluation, a graphical representation is proposed. Each key parameter such as R factor or bond-length deviation from 'ideal values' is shown graphically as a point on a 'ruler'. These rulers are plotted as a set of lines with the same origin, forming a hub and spokes. Different parts of the rulers are coloured differently to reflect the frequency (red for a low frequency, blue for a high frequency) with which the corresponding values are observed in a reference set of structures determined previously. The points for a given model marked on these lines are connected to form a polygon. A polygon that is strongly compressed or dilated along some axes reveals unusually low or high values of the corresponding characteristics. Polygon vertices in 'red zones' indicate parameters which lie outside typical values.
C1 [Urzhumtsev, Alexandre] ULP, CNRS, INSERM,Inst Genet & Biol Mol & Cellulaire, Dept Biol & Genom Struct, F-67404 Illkirch Graffenstaden, France.
[Urzhumtseva, Ludmila] Univ Strasbourg, CNRS, Inst Biol Mol & Cellulaire, Architecture & React ARN, F-67084 Strasbourg, France.
[Afonine, Pavel V.; Adams, Paul D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Urzhumtsev, Alexandre] Univ Nancy 1, Dept Phys, F-54506 Vandoeuvre Les Nancy, France.
RP Urzhumtsev, A (reprint author), ULP, CNRS, INSERM,Inst Genet & Biol Mol & Cellulaire, Dept Biol & Genom Struct, 1 Rue Laurent Fries, F-67404 Illkirch Graffenstaden, France.
EM sacha@igbmc.fr
RI Adams, Paul/A-1977-2013
OI Adams, Paul/0000-0001-9333-8219
FU NIH-NIGMS [P01GM063210]; US Department of Energy [DE AC02-05CH11231]
FX PVA and PDA acknowledge financial support from NIH-NIGMS under grant No.
P01GM063210 and support from the US Department of Energy under Contract
No. DE AC02-05CH11231. LU and AU thank E. Westhof and D. Moras for their
support of the project. We would like to thank referee 1 for a thorough
review and criticisms that resulted in significant improvement of the
manuscript.
NR 21
TC 51
Z9 52
U1 1
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0907-4449
EI 1399-0047
J9 ACTA CRYSTALLOGR D
JI Acta Crystallogr. Sect. D-Biol. Crystallogr.
PD MAR
PY 2009
VL 65
BP 297
EP 300
DI 10.1107/S0907444908044296
PN 3
PG 4
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 410DV
UT WOS:000263558000012
PM 19237753
ER
PT J
AU Wells, DM
Skanthakumar, S
Soderholm, L
Ibers, JA
AF Wells, Daniel M.
Skanthakumar, S.
Soderholm, L.
Ibers, James A.
TI Neptunium(III) copper(I) diselenide
SO ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE
LA English
DT Article
ID SELENIDES
AB The title compound, NpCuSe(2), is the first ternary neptunium transition-metal chalcogenide. It was synthesized from the elements at 873 K in an evacuated fused-silica tube. Single crystals were grown by vapor transport with I(2). NpCuSe(2) crystallizes in the LaCuS(2) structure type and can be viewed as a stacking of layers of CuSe(4) tetrahedra and of double layers of NpSe(7) monocapped trigonal prisms along [100]. Because there are no Se-Se bonds in the structure, the formal oxidation states of Np/Cu/Se may be assigned as +III/+I/-II, respectively.
C1 [Wells, Daniel M.; Ibers, James A.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA.
[Skanthakumar, S.; Soderholm, L.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
RP Ibers, JA (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM ibers@chem.northwestern.edu
FU US Department of Energy [ER-15522, DEAC02-06CH11357]
FX The research was supported at Northwestern University by the US
Department of Energy, Basic Energy Sciences grant ER-15522, and at
Argonne National Laboratory by the US Department of Energy, OBES,
Chemical Sciences Division, under contract DEAC02-06CH11357. We are
indebted to Dr Richard G. Haire of Oak Ridge National Laboratory for the
gift of Np metal.
NR 11
TC 2
Z9 2
U1 0
U2 3
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1600-5368
J9 ACTA CRYSTALLOGR E
JI Acta Crystallogr. Sect. E.-Struct Rep. Online
PD MAR
PY 2009
VL 65
BP I14
EP U97
DI 10.1107/S160053680900395X
PG 7
WC Crystallography
SC Crystallography
GA 427RJ
UT WOS:000264796100002
PM 21582032
ER
PT J
AU Latimer, R
Podzelinska, K
Soares, A
Bhattacharya, A
Vining, LC
Jia, ZC
Zechel, DL
AF Latimer, Ryan
Podzelinska, Kateryna
Soares, Alexei
Bhattacharya, Anupam
Vining, Leo C.
Jia, Zongchao
Zechel, David L.
TI Expression, purification and preliminary diffraction studies of CmlS
SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION
COMMUNICATIONS
LA English
DT Article
ID TRYPTOPHAN 7-HALOGENASE PRNA; PSEUDOMONAS-FLUORESCENS; BIOSYNTHESIS;
CHLORINATION; MECHANISM; HALOGENATION; GENES
AB CmlS, a flavin-dependent halogenase (FDH) present in the chloramphenicol-biosynthetic pathway in Streptomyces venezuelae, directs the dichlorination of an acetyl group. The reaction mechanism of CmlS is of considerable interest as it will help to explain how the FDH family can halogenate a wide range of substrates through a common mechanism. The protein has been recombinantly expressed in Escherichia coli and purified to homogeneity. The hanging-drop vapour-diffusion method was used to produce crystals that were suitable for X-ray diffraction. Data were collected to 2.0 angstrom resolution. The crystal belonged to space group C2, with unit-cell parameters a = 208.1, b = 57.7, c = 59.9 angstrom, beta = 97.5 degrees.
C1 [Latimer, Ryan; Bhattacharya, Anupam; Zechel, David L.] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada.
[Podzelinska, Kateryna; Jia, Zongchao] Queens Univ, Dept Biochem, Kingston, ON K7L 3N6, Canada.
[Soares, Alexei] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA.
[Vining, Leo C.] Dalhousie Univ, Dept Biol, Halifax, NS B3H 4J1, Canada.
RP Zechel, DL (reprint author), Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada.
EM dlzechel@chem.queensu.ca
RI Soares, Alexei/F-4800-2014
OI Soares, Alexei/0000-0002-6565-8503
FU Natural Sciences and Engineering Research Council of Canada (NSERC);
Canadian Institutes of Health Research (CIHR)
FX This research was funded by the Natural Sciences and Engineering
Research Council of Canada (NSERC) and the Canadian Institutes of Health
Research (CIHR). ZJ is a Canada Research Chair in Structural Biology.
DLZ is the recipient of an Early Researcher Award.
NR 16
TC 1
Z9 1
U1 0
U2 6
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1744-3091
J9 ACTA CRYSTALLOGR F
JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun.
PD MAR
PY 2009
VL 65
BP 260
EP 263
DI 10.1107/S1744309108043091
PG 4
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 413DN
UT WOS:000263773200016
PM 19255478
ER
PT J
AU Lebensohn, RA
Montagnat, M
Mansuy, P
Duval, P
Meysonnier, J
Philip, A
AF Lebensohn, R. A.
Montagnat, M.
Mansuy, P.
Duval, P.
Meysonnier, J.
Philip, A.
TI Modeling viscoplastic behavior and heterogeneous intracrystalline
deformation of columnar ice polycrystals
SO ACTA MATERIALIA
LA English
DT Article
DE Ice; Creep; Microstructure; Shear bands; Micromechanical modeling
ID SINGLE-CRYSTAL PLASTICITY; SELF-CONSISTENT APPROACH; NUMERICAL
SIMULATIONS; STRAIN LOCALIZATION; TEXTURE DEVELOPMENT; FIELD
FLUCTUATIONS; POLAR ICE; CRACK-TIP; TI3SIC2; BOUNDARY
AB A Full-field formulation based on fast Fourier transforms (FFT) has been adapted and used to predict the micromechanical fields that develop in two-dimensional columnar Ih ice polycrystals deforming in compression by dislocation creep. The predicted intragranular mechanical fields are in qualitative good agreement with experimental observations, in particular those involving the formation of shear and kink bands. These localized bands are associated with the large internal stresses that develop during, creep in such anisotropic material, and their location, intensity, morphology and extension are found to depend strongly on the crystallographic orientation of the grains and on their interaction with neighboring crystals. The predictions of the model are also discussed in relation to the deformation of columnar sea and lake ice, its well as with the mechanical behavior of granular ice of glaciers and polar ice sheets. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Lebensohn, R. A.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[Montagnat, M.; Duval, P.; Meysonnier, J.; Philip, A.] CNRS, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France.
[Mansuy, P.] Ctr Technol Michelin Ladoux, F-63040 Clermont Ferrand, France.
RP Lebensohn, RA (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MS G755, Los Alamos, NM 87545 USA.
EM lebenso@lanl.gov
RI Lebensohn, Ricardo/A-2494-2008
OI Lebensohn, Ricardo/0000-0002-3152-9105
FU Office of Basic Energy Sciences (USA) [FWP 06SCPE401]; CNRS (ST21
Department); University Joseph Fourier, Grenoble (France)
FX This work was partially supported by the Office of Basic Energy
Sciences. Project FWP 06SCPE401 (USA), and by CNRS (ST21 Department) and
University Joseph Fourier, Grenoble (France).
NR 52
TC 36
Z9 37
U1 1
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
J9 ACTA MATER
JI Acta Mater.
PD MAR
PY 2009
VL 57
IS 5
BP 1405
EP 1415
DI 10.1016/j.actamat.2008.10.057
PG 11
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 422VD
UT WOS:000264454900011
ER
PT J
AU Garten, CT
AF Garten, Charles T., Jr.
TI A disconnect between O horizon and mineral soil carbon - implications
for soil C sequestration
SO ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
LA English
DT Article
DE Forest soil carbon; Carbon sequestration; Litter addition; Litter
exclusion; Litter quality; Nitrogen availability; Soil carbon transfers
ID DISSOLVED ORGANIC-CARBON; ELEVATED CO2; NITROGEN MINERALIZATION;
ABOVEGROUND LITTER; DECIDUOUS FOREST; UNITED-STATES; LEAF-LITTER;
GROWTH; ROOT; FERTILIZATION
AB Changing inputs of carbon to soil is one means of potentially increasing carbon sequestration in soils for the purpose of mitigating projected increases in atmospheric CO(2) concentrations. The effect of manipulations of aboveground carbon input on soil carbon storage was tested in a temperate, deciduous forest in east Tennessee, USA. A 4.5-year experiment included exclusion of aboveground litterfall and supplemental litter additions (three times ambient) in an upland and a valley that differed in soil nitrogen availability. The estimated decomposition rate of the carbon stock in the O horizon was greater in the valley than in the upland due to higher litter quality (i.e., lower C/N ratios). Short-term litter exclusion or addition had no effect on carbon stock in the mineral soil, measured to a depth of 30 cm, or the partitioning of carbon in the mineral soil between particulate- and mineral-associated organic matter. A two-compartment model was used to interpret results from the field experiments. Field data and a sensitivity analysis of the model were consistent with little carbon transfer between the O horizon and the mineral soil. Increasing aboveground carbon input does not appear to be an effective means of promoting carbon sequestration in forest soil at the location of the present study because a disconnect exists in carbon dynamics between O horizon and mineral soil. Factors that directly increase inputs to belowground soil carbon, via roots, or reduce decomposition rates of organic matter are more likely to benefit efforts to increase carbon sequestration in forests where carbon dynamics in the O horizon are uncoupled from the mineral soil. (C) 2008 Elsevier Masson SAS. All rights reserved.
C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Garten, CT (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,Mail Stop 6036, Oak Ridge, TN 37831 USA.
EM gartenctjr@ornl.gov
FU U.S. Department of Energy's office of Science, Biological and
Environmental Research [DE-AC0S-00OR22725]; UT-Battelle, LLC
FX Research was sponsored by the U.S. Department of Energy's office of
Science, Biological and Environmental Research funding to the Consortium
for Research on Enhancing Carbon Sequestration in Terrestrial Ecosystems
(CSiTE) under contract DE-AC0S-00OR22725 with Oak Ridge National
Laboratory (ORNL), managed by UT-Battelle, LLC. I wish to thank Bonnie
Lu (retired), Tom Ashwood (retired), and Deanne Brice (ORNL) for their
valuable technical assistance in the laboratory and/or field studies.
The author is indebted to Paul Hanson (ORNL) whose ideas contributed a
framework for the interpretation of the data and who kindly provided a
helpful review of the draft manuscript.
NR 48
TC 11
Z9 11
U1 1
U2 25
PU GAUTHIER-VILLARS/EDITIONS ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75015 PARIS, FRANCE
SN 1146-609X
J9 ACTA OECOL
JI Acta Oecol.-Int. J. Ecol.
PD MAR-APR
PY 2009
VL 35
IS 2
BP 218
EP 226
DI 10.1016/j.actao.2008.10.004
PG 9
WC Ecology
SC Environmental Sciences & Ecology
GA 419EI
UT WOS:000264201500008
ER
PT J
AU Arndt, O
Hennrich, S
Hoteling, N
Jost, CJ
Tomlin, BE
Shergur, J
Kratz, KL
Mantica, PF
Brown, BA
Janssens, RVF
Walters, WB
Pfeiffer, B
Wohr, A
Zhu, S
Broda, R
Carpenter, MP
Fornall, B
Hecht, AA
Krolas, W
Lauritsen, T
Pawlat, T
Pereira, J
Seweryniak, D
Stefanesc, I
Stone, JR
Wrzesinski, J
AF Arndt, O.
Hennrich, S.
Hoteling, N.
Jost, C. J.
Tomlin, B. E.
Shergur, J.
Kratz, K. -L.
Mantica, P. F.
Brown, B. A.
Janssens, R. V. F.
Walters, W. B.
Pfeiffer, B.
Woehr, A.
Zhu, S.
Broda, R.
Carpenter, M. P.
Fornall, B.
Hecht, A. A.
Krolas, W.
Lauritsen, T.
Pawlat, T.
Pereira, J.
Seweryniak, D.
Stefanesc, I.
Stone, J. R.
Wrzesinski, J.
TI STRUCTURE OF NEUTRON-RICH ODD-MASS In-127,In-129,In-131 POPULATED IN THE
DECAY OF Cd-127,Cd-129,Cd-131
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID HIGH-SPIN; ISOTOPES; CD; SPECTROSCOPY; TRANSITION; ISOMERS; CD-123;
SHELL; AG; PD
AB New level structures are proposed for neutron-rich In-127,In-129,In-131 populated in the decay of Cd-127,Cd-129,Cd-131. No evidence for the presence of 1-particle-2-hole intruder structures in the neutron-rich In isotopes is observed.
C1 [Arndt, O.; Kratz, K. -L.; Pfeiffer, B.] Johannes Gutenberg Univ Mainz, Otto Hahn Inst, MPI Chem, D-55128 Mainz, Germany.
[Arndt, O.; Hennrich, S.; Jost, C. J.; Kratz, K. -L.; Pfeiffer, B.] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany.
[Hoteling, N.; Shergur, J.; Mantica, P. F.; Walters, W. B.; Woehr, A.; Hecht, A. A.; Seweryniak, D.; Stefanesc, I.; Stone, J. R.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Hoteling, N.; Shergur, J.; Janssens, R. V. F.; Zhu, S.; Carpenter, M. P.; Hecht, A. A.; Lauritsen, T.; Seweryniak, D.; Stefanesc, I.] Argonne Natl Lab, Div Phys, Argonne, IL 60432 USA.
[Tomlin, B. E.; Brown, B. A.; Pereira, J.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Woehr, A.] Univ Saarlands, D-66421 Homburg, Germany.
[Broda, R.; Fornall, B.; Krolas, W.; Pawlat, T.; Wrzesinski, J.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Pereira, J.] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA.
RP Arndt, O (reprint author), Johannes Gutenberg Univ Mainz, Otto Hahn Inst, MPI Chem, D-55128 Mainz, Germany.
RI Krolas, Wojciech/N-9391-2013; Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 26
TC 12
Z9 12
U1 0
U2 1
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 437
EP 446
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200007
ER
PT J
AU Gross, CJ
Winger, JA
Ilyushkin, SV
Rykaczewski, KP
Liddick, SN
Darby, IG
Grzywacz, RK
Bingham, CR
Shapira, D
Mazzocchi, C
Padgett, S
Rajabali, MM
Cartegni, L
Zganjare, EF
Piechaczek, A
Batchelder, JC
Hamilton, JH
Goodin, CT
Korgul, A
Krolas, W
AF Gross, C. J.
Winger, J. A.
Ilyushkin, S. V.
Rykaczewski, K. P.
Liddick, S. N.
Darby, I. G.
Grzywacz, R. K.
Bingham, C. R.
Shapira, D.
Mazzocchi, C.
Padgett, S.
Rajabali, M. M.
Cartegni, L.
Zganjare, E. F.
Piechaczek, A.
Batchelder, J. C.
Hamilton, J. H.
Goodin, C. T.
Korgul, A.
Krolas, W.
TI DECAY SPECTROSCOPY OF Cu75-79, Zn79-81 AND Ga83-85
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID NI-78
AB The beta-decay properties of neutron-rich fission fragments of Cu, Zn, and Ga isotopes were studied at the Holifield Radioactive Ion Beam Facility. Beams of Cu75-79, Zn79-81, and Ga83-85 were formed and delivered to two new end-stations at the facility. The Low-energy Radioactive Ion Beam Spectroscopy Station is a traditional on-line low energy (200 keV) beam line with 4 clover Ge detectors, two half-cylindrical plastic beta-detectors, and a moving tape collector. In addition, many of the beams were accelerated to above 2 MeV/u and delivered to a micro-channel plate and transmission ion chamber located just in front of the same detector setup. In both cases, fine adjustment of an isobar separator was used to enhance the isotope of interest. Excited levels in the daughters and beta-delayed neutron branching ratios were measured and used to confirm isotope identification. The decays from Cu-79 and Ga-85 were observed for the first time as was the Ge-84 2(1)(+) level populated by beta and beta n decay channels.
C1 [Gross, C. J.; Rykaczewski, K. P.; Shapira, D.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Winger, J. A.; Ilyushkin, S. V.] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA.
[Liddick, S. N.; Darby, I. G.; Grzywacz, R. K.; Bingham, C. R.; Mazzocchi, C.; Padgett, S.; Rajabali, M. M.; Cartegni, L.; Korgul, A.] Univ Tennessee, Dept Phys, Knoxville, TN 37966 USA.
[Liddick, S. N.; Batchelder, J. C.] Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA.
[Zganjare, E. F.; Piechaczek, A.] Louisiana State Univ, Dept Phys, Baton Rouge, LA 70803 USA.
[Hamilton, J. H.; Goodin, C. T.; Korgul, A.; Krolas, W.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
[Korgul, A.; Krolas, W.] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
[Korgul, A.] Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland.
[Krolas, W.] Inst Nucl Phys, PAN, PL-31342 Krakow, Poland.
RP Gross, CJ (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
EM grosscj@ornl.gov
RI Krolas, Wojciech/N-9391-2013
NR 14
TC 12
Z9 12
U1 0
U2 2
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 447
EP 455
PG 9
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200008
ER
PT J
AU Crawford, HL
Janssens, RVF
Mantica, PF
Berryman, JS
Broda, R
Carpenter, MP
Fornal, B
Grinyer, GF
Hoteling, N
Kay, B
Lauritsen, T
Minamisono, K
Stefanescu, I
Stoker, JB
Walters, WB
Zhu, S
AF Crawford, H. L.
Janssens, R. V. F.
Mantica, P. F.
Berryman, J. S.
Broda, R.
Carpenter, M. P.
Fornal, B.
Grinyer, G. F.
Hoteling, N.
Kay, B.
Lauritsen, T.
Minamisono, K.
Stefanescu, I.
Stoker, J. B.
Walters, W. B.
Zhu, S.
TI beta DECAY STUDIES OF NEUTRON-RICH NUCLEI NEAR Ca-52
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID BEAMS
AB The beta-decay and isomeric properties of Sc-54, K-50 and Ca-53 are presented, and their implications with respect to the goodness of the N = 32 sub-shell closure discussed.
C1 [Crawford, H. L.; Mantica, P. F.; Berryman, J. S.; Stoker, J. B.] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
[Crawford, H. L.; Mantica, P. F.; Berryman, J. S.; Grinyer, G. F.; Minamisono, K.; Stoker, J. B.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Janssens, R. V. F.; Carpenter, M. P.; Hoteling, N.; Kay, B.; Lauritsen, T.; Stefanescu, I.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Broda, R.; Fornal, B.] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
[Hoteling, N.; Stefanescu, I.; Walters, W. B.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
RP Crawford, HL (reprint author), Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA.
EM crawford@nscl.msu.edu
RI Crawford, Heather/E-2208-2011; Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 11
TC 7
Z9 7
U1 1
U2 1
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 481
EP 484
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200012
ER
PT J
AU Riley, MA
Aguilar, A
Evans, AO
Hartley, DJ
Lagergren, K
Ollier, J
Paul, ES
Pipidis, A
Simpson, J
Teal, C
Twin, PJ
Wang, X
Appelbe, DE
Campbell, DB
Carpenter, MP
Clark, RM
Cromaz, M
Darby, IG
Fallon, P
Garg, U
Janssens, RVF
Joss, DT
Kondev, FG
Lauritsen, T
Lee, IY
Lister, CJ
Macchiavelli, AO
Nolan, PJ
Petri, M
Rigby, SV
Thompson, J
Unsworth, C
Ward, D
Zhu, S
Ragnarsson, I
AF Riley, M. A.
Aguilar, A.
Evans, A. O.
Hartley, D. J.
Lagergren, K.
Ollier, J.
Paul, E. S.
Pipidis, A.
Simpson, J.
Teal, C.
Twin, P. J.
Wang, X.
Appelbe, D. E.
Campbell, D. B.
Carpenter, M. P.
Clark, R. M.
Cromaz, M.
Darby, I. G.
Fallon, P.
Garg, U.
Janssens, R. V. F.
Joss, D. T.
Kondev, F. G.
Lauritsen, T.
Lee, I. Y.
Lister, C. J.
Macchiavelli, A. O.
Nolan, P. J.
Petri, M.
Rigby, S. V.
Thompson, J.
Unsworth, C.
Ward, D.
Zhu, S.
Ragnarsson, I.
TI STRONGLY DEFORMED NUCLEAR SHAPES AT ULTRA-HIGH SPIN AND SHAPE
COEXISTENCE IN N similar to 90 NUCLEI
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID PARTICLE-HOLE EXCITATIONS; ROTATIONAL BANDS; YRAST LEVELS; ER-158;
TERMINATION; DISCONTINUITY; YB-158
AB The N similar to 90 region of the nuclear chart has featured prominently as the spectroscopy of nuclei at extreme spin has progressed. This talk will present recent discoveries from investigations of high spin behavior in the N similar to 90 Er, Tm and Yb nuclei utilizing the Gammasphere gamma-ray spectrometer. In particular it will include discussion of the beautiful shape evolution and coexistence observed in these nuclei along with the identification of a remarkable new family of band structures. The latter are very weakly populated rotational sequences with high moment of inertia that bypass the classic terminating configurations near spin 40-50 (h) over bar, marking a return to collectivity that extends discrete gamma-ray spectroscopy to well over 60 (h) over bar. Establishing the nature of the yrast states in these nuclei beyond the oblate band-termination states has been a major goal for the past two decades. Cranking calculations suggest that these new structures most likely represent stable triaxial strongly deformed bands that lie in a valley of favored shell energy in deformation and particle-number space.
C1 [Riley, M. A.; Aguilar, A.; Lagergren, K.; Pipidis, A.; Teal, C.; Wang, X.; Campbell, D. B.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Evans, A. O.; Paul, E. S.; Twin, P. J.; Nolan, P. J.; Petri, M.; Rigby, S. V.; Thompson, J.; Unsworth, C.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Hartley, D. J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Ollier, J.; Simpson, J.; Appelbe, D. E.; Joss, D. T.; Lister, C. J.] STFC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Carpenter, M. P.; Janssens, R. V. F.; Kondev, F. G.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Clark, R. M.; Cromaz, M.; Fallon, P.; Lee, I. Y.; Macchiavelli, A. O.; Ward, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Darby, I. G.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Garg, U.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Ragnarsson, I.] Lund Univ, LTH, Div Math Phys, S-22100 Lund, Sweden.
RP Riley, MA (reprint author), Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
EM mriley@physics.fsu.edu
RI Carpenter, Michael/E-4287-2015; Petri, Marina/H-4630-2016
OI Carpenter, Michael/0000-0002-3237-5734; Petri,
Marina/0000-0002-3740-6106
NR 32
TC 5
Z9 5
U1 0
U2 0
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 513
EP 522
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200017
ER
PT J
AU Hamilton, JH
Luo, YX
Zhu, SJ
Rasmussen, JO
Ramayya, AV
Goodin, C
Li, K
Hwang, JK
Liu, S
Almehed, D
Frauendorf, S
Dimitrov, V
Zhang, JY
Che, XL
Jang, Z
Stefanescu, I
Gelberg, A
Ter-Akopian, GM
Daniel, AV
Lee, IY
Ding, HB
Xu, RQ
Wang, JG
Xu, Q
Stoyer, MA
Donangelo, R
Stone, NJ
AF Hamilton, J. H.
Luo, Y. X.
Zhu, S. J.
Rasmussen, J. O.
Ramayya, A. V.
Goodin, C.
Li, K.
Hwang, J. K.
Liu, S.
Almehed, D.
Frauendorf, S.
Dimitrov, V.
Zhang, Jing-ye
Che, X. L.
Jang, Z.
Stefanescu, I.
Gelberg, A.
Ter-Akopian, G. M.
Daniel, A. V.
Lee, I. Y.
Ding, H. -B.
Xu, R. Q.
Wang, J. -G.
Xu, Q.
Stoyer, M. A.
Donangelo, R.
Stone, N. J.
TI NEW BAND STRUCTURES IN NEUTRON-RICH Mo AND Ru ISOTOPES
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID CHIRAL VIBRATIONS; NUCLEI; SPECTROSCOPY; FISSION
AB Rotational bands in (110,112)Ru and (108)Mo have been investigated by means of gamma-gamma-gamma and gamma-gamma(theta) coincidences of prompt gamma rays emitted in the spontaneous fission of (252)Cf. New Delta I = 1 negative parity doublet bands are found. These bands in (110,112)Ru and (108)Mo have all the properties expected for chiral vibrations. Microscopic calculations that combine the TAC mean-field with random phase approximation support this interpretation.
C1 [Hamilton, J. H.; Luo, Y. X.; Zhu, S. J.; Ramayya, A. V.; Goodin, C.; Li, K.; Hwang, J. K.; Liu, S.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Zhu, S. J.; Che, X. L.; Jang, Z.; Ding, H. -B.; Xu, R. Q.; Wang, J. -G.; Xu, Q.] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Almehed, D.; Frauendorf, S.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Dimitrov, V.] Idaho State Univ, IAC, Pocatello, ID 83209 USA.
[Zhang, Jing-ye; Stone, N. J.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
[Stefanescu, I.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gelberg, A.] Univ Cologne, Dept Phys, D-50937 Cologne, Germany.
[Ter-Akopian, G. M.; Daniel, A. V.] Joint Inst Nucl Res Dubna, Flerov Lab Nucl React, Dubna, Russia.
[Stoyer, M. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Donangelo, R.] Univ Fed Rio de Janeiro, BR-68518 Rio De Janeiro, RG, Brazil.
RP Hamilton, JH (reprint author), Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
EM yxluo@lbl.gov
RI Jiang, Zhuo/E-3110-2010;
OI Hwang, Jae-Kwang/0000-0002-4100-3473
NR 30
TC 0
Z9 0
U1 0
U2 2
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 523
EP 533
PG 11
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200018
ER
PT J
AU Wieleczko, JP
Bonnet, E
del Campo, JG
La Commara, M
Vigilante, M
Frankland, JD
Chbihi, A
Rosato, E
Galindo-Uribarri, A
Shapira, D
Spadaccini, G
Bougault, R
Beck, C
Borderie, B
Dayras, R
De Angelis, G
Lautesse, P
Le Neindre, N
Nalpas, L
Onofrio, AD
Parlog, M
Pierroutsakou, D
Rejmund, F
Rivet, MF
Romoli, M
Roy, R
Tamain, B
AF Wieleczko, J. P.
Bonnet, E.
del Campo, J. Gomez
La Commara, M.
Vigilante, M.
Frankland, J. D.
Chbihi, A.
Rosato, E.
Galindo-Uribarri, A.
Shapira, D.
Spadaccini, G.
Bougault, R.
Beck, C.
Borderie, B.
Dayras, R.
De Angelis, G.
Lautesse, Ph.
Le Neindre, N.
Nalpas, L.
Onofrio, A. D.
Parlog, M.
Pierroutsakou, D.
Rejmund, F.
Rivet, M. F.
Romoli, M.
Roy, R.
Tamain, B.
TI N/Z INFLUENCE ON DISINTEGRATION MODES OF COMPOUND NUCLEI
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
AB Investigations on the influence of the neutron enrichment on the decay channels of excited nuclei are presented. Characteristics of fragments with charge 6 <= Z <= 28 emitted in (78,82)Kr+(40)Ca at 5.5 MeV/A reactions were measured at the GANIL facility. Data are compatible with an emission process from compound nucleus and are discussed in the framework of the transition state model.
C1 [Wieleczko, J. P.; Bonnet, E.; Frankland, J. D.; Chbihi, A.; Rejmund, F.] GANIL, CEA, F-14076 Caen, France.
[Wieleczko, J. P.; Bonnet, E.; Frankland, J. D.; Chbihi, A.; Rejmund, F.] CNRS, IN2P3, F-14076 Caen, France.
[del Campo, J. Gomez; Galindo-Uribarri, A.; Shapira, D.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[La Commara, M.; Vigilante, M.; Rosato, E.; Spadaccini, G.; Pierroutsakou, D.; Romoli, M.] Univ Naples Federico 2, Dipartimento Sci Fisiche, I-80126 Naples, Italy.
[Bougault, R.; Le Neindre, N.; Parlog, M.; Tamain, B.] ENSICAEN, CNRS, LPC, IN2P3, F-14050 Caen, France.
[Bougault, R.; Le Neindre, N.; Parlog, M.; Tamain, B.] Univ Caen, F-14050 Caen, France.
[Beck, C.] CNRS, IPHC, IN2P3CNRS, F-91406 Orsay 2, France.
[Borderie, B.; Rivet, M. F.] CNRS, IPNO, IN2P3, F-91406 Orsay, France.
[Dayras, R.; Nalpas, L.] CEA Saclay, IRFU, SPhN, F-91191 Gif Sur Yvette, France.
[De Angelis, G.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Padova, Italy.
[Lautesse, Ph.] CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France.
[Lautesse, Ph.] Univ Villeurbanne, F-69622 Villeurbanne, France.
[Onofrio, A. D.] Univ Naples Federico 2, Dipartimento Sci Ambientali, I-81100 Caserta, Italy.
[Roy, R.] Univ Laval, Nucl Phys Lab, Quebec City, PQ, Canada.
RP Wieleczko, JP (reprint author), GANIL, CEA, BP 55027, F-14076 Caen, France.
EM wieleczko@ganil.fr
RI Rosato, 357/E-1555-2011; Frankland, John/I-4768-2013; spadaccini,
giulio/K-7633-2015
OI Frankland, John/0000-0002-4907-5041; spadaccini,
giulio/0000-0002-6327-432X
NR 4
TC 8
Z9 8
U1 1
U2 2
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 577
EP 580
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200023
ER
PT J
AU Wadsworth, R
Singh, BSN
Steer, AN
Jenkins, DC
Bentley, MA
Brock, T
Davies, P
Glover, R
Pattabiraman, NS
Scholey, C
Grahn, T
Greenlees, PT
Jones, P
Jakobsson, U
Julin, R
Juutinen, S
Ketelhut, S
Leino, M
Nyman, M
Perua, P
Pakarinen, J
Rahkila, P
Ruotslainen, P
Sorri, J
Uusitalo, J
Lister, CJ
Butler, PA
Dimmock, M
Joss, DT
Thomson, J
Rinta-Antila, S
Cederwall, B
Hadinia, B
Sandzelius, M
Atac, A
Betterman, L
Blazhev, A
Braun, N
Finke, F
Geibel, K
Ilie, G
Iwasaki, H
Jolie, J
Reiter, P
Scholl, C
Warr, N
Boutachkov, P
Caceres, L
Domingo, C
Engert, T
Farinon, F
Gerl, J
Goel, N
Gorska, M
Grawe, H
Kurz, N
Kojuharov, I
Pietri, S
Nociforo, C
Prochazka, A
Wollersheim, HJ
Eppinger, K
Faestermann, T
Hinke, C
Hoischen, R
Kruecken, R
Gottardo, A
Liu, Z
Woods, P
Grebosz, J
Merchant, E
Nyberg, J
Soderstrom, PA
Podolyak, Z
Regan, P
Steer, S
Pfutzner, M
Rudolph, D
AF Wadsworth, R.
Singh, B. S. Nara
Steer, A. N.
Jenkins, D. C.
Bentley, M. A.
Brock, T.
Davies, P.
Glover, R.
Pattabiraman, N. S.
Scholey, C.
Grahn, T.
Greenlees, P. T.
Jones, P.
Jakobsson, U.
Julin, R.
Juutinen, S.
Ketelhut, S.
Leino, M.
Nyman, M.
Perua, P.
Pakarinen, J.
Rahkila, P.
Ruotslainen, P.
Sorri, J.
Uusitalo, J.
Lister, C. J.
Butler, P. A.
Dimmock, M.
Joss, D. T.
Thomson, J.
Rinta-Antila, S.
Cederwall, B.
Hadinia, B.
Sandzelius, M.
Atac, A.
Betterman, L.
Blazhev, A.
Braun, N.
Finke, F.
Geibel, K.
Ilie, G.
Iwasaki, H.
Jolie, J.
Reiter, P.
Scholl, C.
Warr, N.
Boutachkov, P.
Caceres, L.
Domingo, C.
Engert, T.
Farinon, F.
Gerl, J.
Goel, N.
Gorska, M.
Grawe, H.
Kurz, N.
Kojuharov, I.
Pietri, S.
Nociforo, C.
Prochazka, A.
Wollersheim, H-J.
Eppinger, K.
Faestermann, T.
Hinke, C.
Hoischen, R.
Kruecken, R.
Gottardo, A.
Liu, Z.
Woods, P.
Grebosz, J.
Merchant, E.
Nyberg, J.
Soderstrom, P-A.
Podolyak, Z.
Regan, P.
Steer, S.
Pfutzner, M.
Rudolph, D.
TI THE NORTHWEST FRONTIER: SPECTROSCOPY OF N similar to Z NUCLEI BELOW MASS
100
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID COULOMB ENERGY DIFFERENCES; PROTON-DRIP-LINE; RP-PROCESS; STATES; AG-94
AB The spectroscopy and structure of excited states of N similar to Z nuclei in the mass 70-100 region has been investigated using two techniques. In the A similar to 70-80 region fusion evaporation reactions coupled with the recoil-beta-tagging method have been employed at Jyvaskyla to study low-lying states in odd-odd N = Z nuclei. Results from these and other data for known odd-odd nuclei above mass 60 will be discussed. In the heavier mass 90 region a fragmentation experiment has been performed using the RIS-ING/FRS setup at GSI. This experiment was primarily aimed at searching for spin gap isomers in nuclei around A similar to 96. The objectives of the latter experiment will be discussed.
C1 [Wadsworth, R.; Singh, B. S. Nara; Steer, A. N.; Jenkins, D. C.; Bentley, M. A.; Brock, T.; Davies, P.; Glover, R.; Pattabiraman, N. S.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
[Scholey, C.; Grahn, T.; Greenlees, P. T.; Jones, P.; Jakobsson, U.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Nyman, M.; Perua, P.; Pakarinen, J.; Rahkila, P.; Ruotslainen, P.; Sorri, J.; Uusitalo, J.] Univ Jyvaskyla, Dept Phys, Jyvaskyla, Finland.
[Lister, C. J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Grahn, T.; Pakarinen, J.; Butler, P. A.; Dimmock, M.; Joss, D. T.; Thomson, J.; Rinta-Antila, S.] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England.
[Cederwall, B.; Hadinia, B.; Sandzelius, M.] KTH Stockholm, Dept Phys, Stockholm, Sweden.
[Atac, A.] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey.
[Betterman, L.; Blazhev, A.; Braun, N.; Finke, F.; Geibel, K.; Ilie, G.; Iwasaki, H.; Jolie, J.; Reiter, P.; Scholl, C.; Warr, N.] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany.
[Boutachkov, P.; Caceres, L.; Domingo, C.; Engert, T.; Farinon, F.; Gerl, J.; Goel, N.; Gorska, M.; Grawe, H.; Kurz, N.; Kojuharov, I.; Pietri, S.; Nociforo, C.; Prochazka, A.; Wollersheim, H-J.] GSI Lab, D-64291 Darmstadt, Germany.
[Caceres, L.] Univ Autonoma Madrid, Dept Phys, E-28049 Madrid, Spain.
[Eppinger, K.; Faestermann, T.; Hinke, C.; Hoischen, R.; Kruecken, R.] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany.
[Gottardo, A.; Liu, Z.; Woods, P.] Univ Edinburgh, Dept Phys, Edinburgh, Midlothian, Scotland.
[Grebosz, J.] PAN, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Merchant, E.] Univ Nacl Colombia, Bogota, Colombia.
[Nyberg, J.; Soderstrom, P-A.] Uppsala Univ, Div Phys, S-75121 Uppsala, Sweden.
[Podolyak, Z.; Regan, P.; Steer, S.] Univ Surrey, Dept Phys, Surrey GU2 7XH, England.
[Pfutzner, M.] Warsaw Univ, Inst Expt Phys, PL-00681 Warsaw, Poland.
[Hoischen, R.; Rudolph, D.] Lund Univ, Dept Phys, S-22100 Lund, Sweden.
RP Wadsworth, R (reprint author), Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England.
RI Gerl, Juergen/A-3255-2011; Scholey, Catherine/G-2720-2014; Cederwall,
Bo/M-3337-2014; Kruecken, Reiner/A-1640-2013; Pakarinen,
Janne/F-6695-2010
OI Scholey, Catherine/0000-0002-8743-6071; Cederwall,
Bo/0000-0003-1771-2656; Kruecken, Reiner/0000-0002-2755-8042;
Faestermann, Thomas/0000-0002-6603-8787; Pakarinen,
Janne/0000-0001-8944-8757
NR 23
TC 4
Z9 4
U1 0
U2 4
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 611
EP 620
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200031
ER
PT J
AU Seweryniak, D
Carpenter, MP
Gros, S
Hecht, AA
Hoteling, N
Janssens, RVF
Khoo, TL
Lauritsen, T
Lister, CJ
Lotay, G
Peterson, D
Robinson, AP
Walters, WB
Wang, X
Woods, PJ
Zhu, S
AF Seweryniak, D.
Carpenter, M. P.
Gros, S.
Hecht, A. A.
Hoteling, N.
Janssens, R. V. F.
Khoo, T. L.
Lauritsen, T.
Lister, C. J.
Lotay, G.
Peterson, D.
Robinson, A. P.
Walters, W. B.
Wang, X.
Woods, P. J.
Zhu, S.
TI NEW RESULTS NEAR Sn-100: OBSERVATION OF SINGLE-NEUTRON STATES IN Sn-101
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID DECAY
AB A search for in-beam gamma-ray transitions in Sn-101, which contains only one neutron outside the Sn-100 core, using a novel approach was carried out at the Argonne Tandem-Linac System. Sn-101 nuclei were produced using the Ti-46(Ni-58, 3n)Sn-101 fusion-evaporation reaction. Beta-delayed protons with energies and decay times consistent with previous Sn-101 decay studies were observed at the focal plane of the Fragment Mass Analyzer. In-beam gamma rays were detected in the Gammasphere Ge-detector array and were correlated with the Sn-101 beta-delayed protons using the Recoil-Decay Tagging method. As a result, a gamma-ray transition between the single-neutron nu g(7/2) and nu d(5/2) states situated at the Fermi surface was identified. The measured nu g(7/2)-nu d(5/2) energy splitting was compared with predictions corresponding to various mean-field potentials and was used to calculate multi-neutron configurations in light Sri isotopes. Similar approach can be used to study core excitations in Sn-101 and other exotic nuclei near Sn-100.
C1 [Seweryniak, D.; Carpenter, M. P.; Gros, S.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.; Lister, C. J.; Peterson, D.; Robinson, A. P.; Wang, X.; Zhu, S.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Hecht, A. A.; Hoteling, N.; Walters, W. B.] Univ Maryland, College Pk, MD 20742 USA.
[Lotay, G.; Woods, P. J.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Wang, X.] Univ Notre Dame, Notre Dame, IN 46556 USA.
RP Seweryniak, D (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 10
TC 2
Z9 2
U1 0
U2 0
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 621
EP 627
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200032
ER
PT J
AU Pawlat, T
Broda, R
Fornal, B
Krolas, W
Wrzesinski, J
Janssens, RVF
Zhu, S
Carpenter, MP
Walters, WB
Hoteling, N
AF Pawlat, T.
Broda, R.
Fornal, B.
Krolas, W.
Wrzesinski, J.
Janssens, R. V. F.
Zhu, S.
Carpenter, M. P.
Walters, W. B.
Hoteling, N.
TI EXPERIMENTAL STUDY OF NEUTRON-RICH NUCLEI Rb-89 AND Rb-91
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
AB Neutron-rich Rb-89,Rb-91 nuclei populated as fission products in heavy-ion reactions have been studied with the Gammasphere array. The previously known level schemes have been extended to higher excitation energies and spins. Spin and parity assignments were based on angular correlation analyses. A value of T-1/2 = 8(2) ns was extracted for the isomeric g(9/2) state in Rb-89.
C1 [Pawlat, T.; Broda, R.; Fornal, B.; Krolas, W.; Wrzesinski, J.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Janssens, R. V. F.; Zhu, S.; Carpenter, M. P.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Walters, W. B.; Hoteling, N.] Univ Maryland, College Pk, MD 20742 USA.
RP Pawlat, T (reprint author), H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
RI Krolas, Wojciech/N-9391-2013; Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 6
TC 6
Z9 6
U1 1
U2 1
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 629
EP 632
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200033
ER
PT J
AU Matejska-Minda, M
Fornal, B
Broda, R
Krolas, W
Mazurek, K
Pawlat, T
Wrzesinski, J
Carpenter, MP
Janssens, RVF
Zhu, S
AF Matejska-Minda, M.
Fornal, B.
Broda, R.
Krolas, W.
Mazurek, K.
Pawlat, T.
Wrzesinski, J.
Carpenter, M. P.
Janssens, R. V. F.
Zhu, S.
TI YRAST STRUCTURE OF Zr-97
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
AB The yrast structure of the neutron-rich nucleus Zr-97 has been studied using fission of target-like products in the reaction of a Ca-48 beam on a thick U-238 target. The level scheme known from the previous studies up to an energy and spin of approx. 4619 keV and 23/2(-), respectively, has been extended by about 3 MeV and a few units of angular momentum. The located structure can be discussed in terms of shell model configurations.
C1 [Matejska-Minda, M.; Fornal, B.; Broda, R.; Krolas, W.; Mazurek, K.; Pawlat, T.; Wrzesinski, J.] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland.
[Carpenter, M. P.; Janssens, R. V. F.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Matejska-Minda, M (reprint author), Polish Acad Sci, Inst Nucl Phys, Krakow, Poland.
RI Krolas, Wojciech/N-9391-2013; Carpenter, Michael/E-4287-2015
OI Carpenter, Michael/0000-0002-3237-5734
NR 8
TC 2
Z9 2
U1 0
U2 0
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 633
EP 637
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200034
ER
PT J
AU Matos, M
Estrade, A
Amthor, AM
Bazin, D
Becerril, A
Elliot, T
Famiano, M
Gade, A
Galaviz, D
Lorusso, G
Pereira, J
Portillo, M
Rogers, A
Schatz, H
Shapira, D
Smith, E
Stolz, A
Wallace, M
AF Matos, M.
Estrade, A.
Amthor, A. M.
Bazin, D.
Becerril, A.
Elliot, T.
Famiano, M.
Gade, A.
Galaviz, D.
Lorusso, G.
Pereira, J.
Portillo, M.
Rogers, A.
Schatz, H.
Shapira, D.
Smith, E.
Stolz, A.
Wallace, M.
TI TIME-OF-FLIGHT MASS MEASUREMENTS AND THEIR IMPORTANCE FOR NUCLEAR
ASTROPHYSICS
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID RP-PROCESS
AB Atomic masses play an important role in nuclear astrophysics. The lack of experimental values for nuclides of interest has triggered a rapid development of new mass measurement devices around the world, including Time-of-Flight (TOF) mass measurements offering an access to the most exotic nuclides. Recently, the TOF-B rho technique that includes a position measurement for magnetic rigidity correction has been implemented at the NSCL. An experiment with a similar TOF-B rho technique is approved and planned at the next generation radioactive beam facility (RIBF) at RIKEN.
C1 [Matos, M.; Estrade, A.; Amthor, A. M.; Bazin, D.; Becerril, A.; Elliot, T.; Gade, A.; Galaviz, D.; Lorusso, G.; Pereira, J.; Portillo, M.; Rogers, A.; Schatz, H.; Stolz, A.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
[Estrade, A.; Amthor, A. M.; Becerril, A.; Elliot, T.; Gade, A.; Lorusso, G.; Rogers, A.; Schatz, H.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Famiano, M.] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[Shapira, D.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Smith, E.] Ohio State Univ, Columbus, OH 43210 USA.
[Wallace, M.] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Matos, M (reprint author), Louisiana State Univ, ORNL, Oak Ridge, TN 37831 USA.
RI Galaviz Redondo, Daniel/A-7325-2008; Matos, Milan/G-6947-2012
OI Galaviz Redondo, Daniel/0000-0003-2992-4496; Matos,
Milan/0000-0003-1722-9509
NR 13
TC 2
Z9 2
U1 0
U2 2
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 695
EP 698
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200045
ER
PT J
AU Moazen, BH
Blackmon, JC
Bardayan, DW
Chae, KY
Chipps, K
Grzywacz, KL
Kozub, RL
Matei, C
Nesaraja, CD
Pain, SD
Shriner, JF
Smith, MS
AF Moazen, B. H.
Blackmon, J. C.
Bardayan, D. W.
Chae, K. Y.
Chipps, K.
Grzywacz, K. L.
Kozub, R. L.
Matei, C.
Nesaraja, C. D.
Pain, S. D.
Shriner, J. F., Jr.
Smith, M. S.
TI MEASUREMENT OF THE 330 keV RESONANCE IN F-18(p, alpha)O-15
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
AB While recent measurements have substantially improved our understanding of the F-18(p, alpha)O-15 reaction that is important in novae, the production of F-18 is still uncertain by more than 2 orders of magnitude, due in large part to the contribution of a resonance located at E-cm = 330 keV. We developed a new technique to study resonant (p, alpha) reactions and employed it to measure properties of the E-cm = 183 keV resonance in O-17(p, alpha)N-14 which had been previously reported to decrease F-18 production in ONeMg novae by as much as a factor of 10. The previous results were confirmed using the new technique and we now propose to use this technique to study the F-18(p, alpha)O-15 reaction.
C1 [Moazen, B. H.; Chae, K. Y.; Grzywacz, K. L.; Nesaraja, C. D.] Univ Tennessee, Knoxville, TN 37996 USA.
[Blackmon, J. C.] Louisiana State Univ, Baton Rouge, LA 70803 USA.
[Bardayan, D. W.; Nesaraja, C. D.; Pain, S. D.; Smith, M. S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Chipps, K.] Colorado Sch Mines, Golden, CO 80401 USA.
[Kozub, R. L.; Shriner, J. F., Jr.] Tennessee Technol Univ, Cookeville, TN 38505 USA.
[Matei, C.] Oak Ridge Associated Univ, Oak Ridge, TN 37830 USA.
RP Moazen, BH (reprint author), Univ Tennessee, Knoxville, TN 37996 USA.
RI Jones, Katherine/B-8487-2011; Pain, Steven/E-1188-2011; Matei,
Catalin/B-2586-2008;
OI Jones, Katherine/0000-0001-7335-1379; Pain, Steven/0000-0003-3081-688X;
Matei, Catalin/0000-0002-2254-3853; Nesaraja,
Caroline/0000-0001-5571-8341
NR 8
TC 0
Z9 0
U1 0
U2 0
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 699
EP 703
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200046
ER
PT J
AU Doan, QT
Curien, D
Stezowski, O
Dudek, J
Mazurek, K
Gozdz, A
Piot, J
Duchene, G
Gall, B
Molique, H
Richet, M
Medina, P
Guinet, D
Redon, N
Schmitt, C
Jones, P
Peura, P
Ketelhut, S
Nyman, M
Jakobsson, U
Greenlees, PT
Julin, R
Juutinen, S
Rahkila, P
Maj, A
Zuber, K
Bednarczyk, P
Schunck, N
Dobaczewski, J
Astier, A
Deloncle, I
Verney, D
De Angelis, G
Gerl, J
AF Doan, Q. T.
Curien, D.
Stezowski, O.
Dudek, J.
Mazurek, K.
Gozdz, A.
Piot, J.
Duchene, G.
Gall, B.
Molique, H.
Richet, M.
Medina, P.
Guinet, D.
Redon, N.
Schmitt, Ch.
Jones, P.
Peura, P.
Ketelhut, S.
Nyman, M.
Jakobsson, U.
Greenlees, P. T.
Julin, R.
Juutinen, S.
Rahkila, P.
Maj, A.
Zuber, K.
Bednarczyk, P.
Schunck, N.
Dobaczewski, J.
Astier, A.
Deloncle, I.
Verney, D.
De Angelis, G.
Gerl, J.
TI SEARCH FOR FINGERPRINTS OF TETRAHEDRAL SYMMETRY IN Gd-156
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
AB Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2 transitions at the bottom of the odd-spin negative-parity band in Gd-156. The present study reports on experiment performed to address this phenomenon. It allowed to remove certain ambiguouities related to the intra-band E2 transitions in the negative-parity bands, to determine the new inter-band transitions and reduced probability ratios B(E2)/B(E1) and, for the first time, to determine the experimental uncertainties related to the latter observable.
C1 [Doan, Q. T.; Stezowski, O.; Guinet, D.; Redon, N.; Schmitt, Ch.] Univ Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France.
[Curien, D.; Dudek, J.; Piot, J.; Duchene, G.; Gall, B.; Molique, H.; Richet, M.; Medina, P.] CNRS, IN2P3, ULP, IPHC DRS, F-67037 Strasbourg, France.
[Gozdz, A.] Marie Curie Sklodowska Univ, Fac Math Phys & Comp Sci, PL-20031 Lublin, Poland.
[Jones, P.; Peura, P.; Ketelhut, S.; Nyman, M.; Jakobsson, U.; Greenlees, P. T.; Julin, R.; Juutinen, S.; Rahkila, P.; Dobaczewski, J.] Univ Jyvaskyla, Dept Phys, Jyvaskyla 40014, Finland.
[Mazurek, K.; Maj, A.; Zuber, K.] PAN, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Schunck, N.] ORNL, Div Phys, Oak Ridge, TN 37831 USA.
[Dobaczewski, J.] Warsaw Univ, Inst Theoret Phys, PL-00681 Warsaw, Poland.
[Astier, A.; Deloncle, I.] CNRS, IN2P3, CSNSM, F-91405 Orsay, France.
[Verney, D.] CNRS, IN2P3, IPN Orsay, F-91406 Orsay, France.
[De Angelis, G.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Gerl, J.] GSI Darmstadt, D-64291 Darmstadt, Germany.
RP Doan, QT (reprint author), Univ Lyon 1, CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France.
RI Gerl, Juergen/A-3255-2011; DUDEK, Jerzy/A-3584-2013; CURIEN,
Dominique/B-6718-2013;
OI Jakobsson, Ulrika/0000-0001-9741-141X; Peura, Pauli/0000-0002-8541-0169;
DUDEK, Jerzy/0000-0001-5864-6339; Schunck, Nicolas/0000-0002-9203-6849
NR 6
TC 12
Z9 12
U1 0
U2 4
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 725
EP 730
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200049
ER
PT J
AU Staszczak, A
Wong, CY
AF Staszczak, A.
Wong, C. Y.
TI TOROIDAL SUPER-HEAVY NUCLEI IN SKYRME-HARTREE-FOCK APPROACH
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID HARMONIC-OSCILLATOR BASIS; BUBBLE NUCLEI; BOGOLYUBOV EQUATIONS; PROGRAM;
HFODD; MULTIFRAGMENTATION; FRAGMENTATION; COLLISIONS; VERSION
AB Within the self-consistent constraint Skyrme-Hartree-Fock+BCS model (SHF+BCS), we found equilibrium toroidal nuclear density distributions in the region of super-heavy elements. For nuclei with a sufficient oblate deformation (Q20 <= -200 b), it becomes energetically favourable to change the genus of nuclear surface from 0 to 1, i.e., to switch the shape from a biconcave disc to a torus. The energy of the toroidal (genus = 1) SHF+BCS solution relative to the compact (genus = 0) ground state energy is strongly dependent both on the atomic number Z and the mass number A. We discuss the region of Z and A where the toroidal SHF+BCS total energy begins to be a global minimum.
C1 [Staszczak, A.] Marie Curie Sklodowska Univ, Inst Phys, Lublin, Poland.
[Staszczak, A.; Wong, C. Y.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Staszczak, A (reprint author), Marie Curie Sklodowska Univ, Inst Phys, Lublin, Poland.
EM andrzej.staszczak@poczta.umcs.lublin.pl
OI Wong, Cheuk-Yin/0000-0001-8223-0659
NR 25
TC 8
Z9 8
U1 0
U2 0
PU POLISH ACAD SCIENCES INST PHYSICS
PI WARSAW
PA AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 753
EP 757
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200054
ER
PT J
AU Myalski, S
Maj, A
Podolyak, Z
Becker, F
Bednarczyk, P
Benzoni, G
Blank, B
Brandau, C
Bruce, AM
Caceres, L
Camera, F
Catford, WN
Cullen, IJ
Dombradi, Z
Doornenbal, P
Estevez, E
Garnsworthy, AB
Geissel, H
Gelletly, W
Gerl, J
Corska, M
Grawe, H
Grebosz, J
Heinz, A
Hoischen, R
Ilie, G
Jones, GA
Jungclaus, A
Kelic, A
Kmiecik, M
Kojouharov, I
Kondev, FG
Kurtukian-Nieto, T
Kurz, N
Lalkovski, S
Liu, Z
Montes, F
Pfutzner, M
Pietri, S
Prokopowicz, W
Regan, PH
Rudolph, D
Saito, T
Schaffner, H
Schwertel, S
Shizuma, T
Simon, AJ
Steer, SJ
Tashenov, S
Walker, PM
Werner-Malento, E
Wieland, O
Wollersheim, HJ
AF Myalski, S.
Maj, A.
Podolyak, Zs.
Becker, F.
Bednarczyk, P.
Benzoni, G.
Blank, B.
Brandau, C.
Bruce, A. M.
Caceres, L.
Camera, F.
Catford, W. N.
Cullen, I. J.
Dombradi, Zs.
Doornenbal, P.
Estevez, E.
Garnsworthy, A. B.
Geissel, H.
Gelletly, W.
Gerl, J.
Corska, M.
Grawe, H.
Grebosz, J.
Heinz, A.
Hoischen, R.
Ilie, G.
Jones, G. A.
Jungclaus, A.
Kelic, A.
Kmiecik, M.
Kojouharov, I.
Kondev, F. G.
Kurtukian-Nieto, T.
Kurz, N.
Lalkovski, S.
Liu, Z.
Montes, F.
Pfuetzner, M.
Pietri, S.
Prokopowicz, W.
Regan, P. H.
Rudolph, D.
Saito, T.
Schaffner, H.
Schwertel, S.
Shizuma, T.
Simon, A. J.
Steer, S. J.
Tashenov, S.
Walker, P. M.
Werner-Malento, E.
Wieland, O.
Wollersheim, H. J.
TI ISOMERIC RATIOS FOR NUCLEI WITH Z=62-67 AND A=142-152 PRODUCED IN THE
RELATIVISTIC FRAGMENTATION OF Pb-208
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID HIGH-SPIN STATES; ANGULAR-MOMENTUM; SPECTROSCOPY; GD-144; N=82
AB Isomeric states in nuclei with Z = 62-67 and A = 142-152 produced in the fragmentation of the relativistic (1 GeV/nucleon) Pb-208 beam were investigated. Isomeric ratios were determined for 10 isomeric states. Significant differences between theoretical and experimental values were observed.
C1 [Myalski, S.; Maj, A.; Bednarczyk, P.; Grebosz, J.; Kmiecik, M.] Inst Fiz Jadrowej PAN, Krakow, Poland.
[Podolyak, Zs.; Brandau, C.; Catford, W. N.; Cullen, I. J.; Garnsworthy, A. B.; Gelletly, W.; Jones, G. A.; Liu, Z.; Pietri, S.; Regan, P. H.; Simon, A. J.; Steer, S. J.; Walker, P. M.] Univ Surrey, Dept Phys, Guildford GU2 5XH, Surrey, England.
[Becker, F.; Bednarczyk, P.; Caceres, L.; Doornenbal, P.; Geissel, H.; Gerl, J.; Corska, M.; Grawe, H.; Grebosz, J.; Kelic, A.; Kojouharov, I.; Kurz, N.; Montes, F.; Prokopowicz, W.; Saito, T.; Schaffner, H.; Wollersheim, H. J.] GSI Darmstadt, D-6100 Darmstadt, Germany.
[Benzoni, G.; Camera, F.; Wieland, O.] Univ Milan, Milan, Italy.
[Benzoni, G.; Camera, F.; Wieland, O.] INFN Sez, Milan, Italy.
[Blank, B.; Shizuma, T.] CENBG, Gradignan, France.
[Bruce, A. M.] Univ Brighton, Sch Engn, Brighton, E Sussex, England.
[Caceres, L.; Jungclaus, A.] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain.
[Dombradi, Zs.] Atommagkutato Intezete, Debrecen, Hungary.
[Kurtukian-Nieto, T.] Univ Santiago de Compostela, Santiago De Compostela, Spain.
[Garnsworthy, A. B.] Yale Univ, WNSL, New Haven, CT USA.
[Heinz, A.; Ilie, G.] Univ Cologne, IKP, Cologne, Germany.
[Hoischen, R.; Rudolph, D.] Lund Univ, Inst Fys, Lund, Sweden.
[Ilie, G.] IFIN HH, Bucharest, Romania.
[Kondev, F. G.] ANL, Nucl Engn Div, Argonne, IL USA.
[Lalkovski, S.] Univ Sofia St Kliment Ohridsk, Fac Phys, Sofia, Bulgaria.
[Pfuetzner, M.] Uniwersytet Warszawski, Inst Fiz Doswiadczalnej, Warsaw, Poland.
[Prokopowicz, W.] Uniwersytet Jagiellonski, Inst Fiz, Krakow, Poland.
[Schwertel, S.] Tech Univ Munich, Inst Expt Phys, D-8000 Munich, Germany.
[Werner-Malento, E.] Inst Fiz PAN, Warsaw, Poland.
[Shizuma, T.] Japan Atom Energy Res Inst, Kyoto, Japan.
RP Myalski, S (reprint author), Inst Fiz Jadrowej PAN, Krakow, Poland.
EM symon.myalski@ifj.edu.pl; Adam.Maj@ifj.edu.pl
RI Wieland, Oliver/G-1784-2011; Dombradi, Zsolt/B-3743-2012; Heinz,
Andreas/E-3191-2014; Kurtukian-Nieto, Teresa/J-1707-2014; Bruce,
Alison/K-7663-2016
OI Kurtukian-Nieto, Teresa/0000-0002-0028-0220; Bruce,
Alison/0000-0003-2871-0517
NR 22
TC 2
Z9 2
U1 0
U2 2
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 879
EP 883
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200072
ER
PT J
AU Farrelly, GF
Podolyak, Z
Steer, SJ
Pietri, S
Xu, FR
Werner-Malento, E
Shizuma, T
Regan, PH
Rudolph, D
Garnsworthy, AB
Hoischen, R
Gorska, M
Gerl, J
Wollersheim, HJ
Kurtukian-Nieto, T
Benzoni, G
Becker, F
Bednarczyk, P
Caceres, L
Doornenbal, P
Geisserl, H
Grebosz, J
Kelic, A
Kojouharov, I
Kurz, N
Montes, F
Prokopowicz, W
Saito, T
Schaffner, H
Tashenov, S
Heinz, A
Pfuzner, M
Jungclaus, A
Balabanski, DL
Brandau, C
Bruce, AM
Catford, WN
Cullen, IJ
Dombradi, Z
Estevez, E
Gelletly, W
Ilie, G
Jolie, J
Jones, GA
Kmiecik, M
Kondev, FG
Krucken, R
Lalkovski, S
Liu, HL
Liu, Z
Maj, A
Myalski, S
Schwerrel, S
Walker, PM
Wieland, O
AF Farrelly, G. F.
Podolyak, Zs.
Steer, S. J.
Pietri, S.
Xu, F. R.
Werner-Malento, E.
Shizuma, T.
Regan, P. H.
Rudolph, D.
Garnsworthy, A. B.
Hoischen, R.
Gorska, M.
Gerl, J.
Wollersheim, H. J.
Kurtukian-Nieto, T.
Benzoni, G.
Becker, F.
Bednarczyk, P.
Caceres, L.
Doornenbal, P.
Geisserl, H.
Grebosz, J.
Kelic, A.
Kojouharov, I.
Kurz, N.
Montes, F.
Prokopowicz, W.
Saito, T.
Schaffner, H.
Tashenov, S.
Heinz, A.
Pfuezner, M.
Jungclaus, A.
Balabanski, D. L.
Brandau, C.
Bruce, A. M.
Catford, W. N.
Cullen, I. J.
Dombradi, Zs.
Estevez, E.
Gelletly, W.
Ilie, G.
Jolie, J.
Jones, G. A.
Kmiecik, M.
Kondev, F. G.
Kruecken, R.
Lalkovski, S.
Liu, H. L.
Liu, Z.
Maj, A.
Myalski, S.
Schwerrel, S.
Walker, P. M.
Wieland, O.
TI REVISION OF THE K-ISOMER IN W-190(116)
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT 43rd Zakopane Conference on Nuclear Physics
CY SEP 01-07, 2008
CL Zakopane, POLAND
ID FRAGMENTATION; SPECTROSCOPY
AB Gamma rays from the decay of an isomer in W-190(116) have been observed following projectile fragmentation of a 1 GeV per nucleon Pb-208 beam. An earlier experiment indicated decay from a (10(-)) isomer to the ground state rotational band. Improved statistics have enabled gamma coincidence and time-difference measurements to be made which alter the previous interpretation. Blocked BCS calculations have also been used together with reduced hindrance factors to indicate possible values of spin-parity for the isomer.
C1 [Farrelly, G. F.; Podolyak, Zs.; Steer, S. J.; Pietri, S.; Shizuma, T.; Regan, P. H.; Garnsworthy, A. B.; Brandau, C.; Catford, W. N.; Cullen, I. J.; Gelletly, W.; Jones, G. A.; Liu, Z.; Walker, P. M.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England.
[Werner-Malento, E.; Wollersheim, H. J.; Kurtukian-Nieto, T.; Becker, F.; Bednarczyk, P.; Caceres, L.; Doornenbal, P.; Geisserl, H.; Grebosz, J.; Kelic, A.; Kojouharov, I.; Kurz, N.; Montes, F.; Prokopowicz, W.; Saito, T.; Schaffner, H.; Tashenov, S.; Heinz, A.] GSI Darmstadt, D-64291 Darmstadt, Germany.
[Xu, F. R.; Liu, H. L.] Peking Univ, Dept Tech Phys, Beijing 100871, Peoples R China.
[Werner-Malento, E.; Pfuezner, M.] Warsaw Univ, IEP, PL-00681 Warsaw, Poland.
[Shizuma, T.] Japan Atom Energy Agcy, Kizu, Kyoto 6190215, Japan.
[Rudolph, D.; Hoischen, R.] Lund Univ, Dept Phys, S-22100 Lund, Sweden.
[Benzoni, G.; Wieland, O.] Univ Milan, Ist Nazl Fis Nucl, I-20133 Milan, Italy.
[Heinz, A.] Yale Univ, WNSL, New Haven, CT 06520 USA.
[Jungclaus, A.; Balabanski, D. L.] UAM, Dept Fis Teor, Madrid 28049, Spain.
[Balabanski, D. L.] Bulg Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria.
[Bruce, A. M.; Lalkovski, S.] Univ Brighton, Sch Environm & Technol, Brighton, E Sussex, England.
[Dombradi, Zs.] ATOMKI, Inst Nucl Res, H-4001 Debrecen, Hungary.
[Estevez, E.] Univ Santiago de Compostela, Santiago De Compostela, Spain.
[Ilie, G.; Jolie, J.] Univ Cologne, IKP, D-50937 Cologne, Germany.
[Kmiecik, M.; Maj, A.; Myalski, S.] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland.
[Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Kruecken, R.; Schwerrel, S.] Tech Univ Munich, Phys Dept E12, D-8046 Garching, Germany.
RP Farrelly, GF (reprint author), Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England.
EM G.Farrelly@surrey.ac.uk; J.Gerl@gsi.de; Adam.Maj@ifj.edu.pl
RI Wieland, Oliver/G-1784-2011; Dombradi, Zsolt/B-3743-2012; Xu,
Furong/K-4178-2013; Heinz, Andreas/E-3191-2014; Kurtukian-Nieto,
Teresa/J-1707-2014; Bruce, Alison/K-7663-2016; Kruecken,
Reiner/A-1640-2013
OI Kurtukian-Nieto, Teresa/0000-0002-0028-0220; Bruce,
Alison/0000-0003-2871-0517; Kruecken, Reiner/0000-0002-2755-8042
NR 8
TC 7
Z9 7
U1 0
U2 3
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2009
VL 40
IS 3
BP 885
EP 888
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 422NY
UT WOS:000264436200073
ER
PT J
AU Zalesny, MD
AF Zalesny, Mary D.
TI Strategy as Practice: Research Directions and Resources
SO ADMINISTRATIVE SCIENCE QUARTERLY
LA English
DT Book Review
C1 [Zalesny, Mary D.] Natl Secur Directorate, Pacific NW Natl Lab, Seattle, WA USA.
RP Zalesny, MD (reprint author), Natl Secur Directorate, Pacific NW Natl Lab, Seattle, WA USA.
NR 1
TC 0
Z9 0
U1 2
U2 12
PU ADMINISTRATIVE, SCI QUARTERLY
PI ITHACA
PA CORNELL UNIV, JOHNSON SCHOOL, 20 THORNWOOD DR, STE 100, ITHACA, NY
14850-1265 USA
SN 0001-8392
J9 ADMIN SCI QUART
JI Adm. Sci. Q.
PD MAR
PY 2009
VL 54
IS 1
BP 169
EP 170
PG 2
WC Business; Management
SC Business & Economics
GA 460XQ
UT WOS:000267226300010
ER
PT J
AU Schlaf, M
Ghosh, P
Fagan, PJ
Hauptman, E
Bullock, RM
AF Schlaf, Marcel
Ghosh, Prasenjit
Fagan, Paul J.
Hauptman, Elisabeth
Bullock, R. Morris
TI Catalytic Deoxygenation of 1,2-Propanediol to Give n-Propanol
SO ADVANCED SYNTHESIS & CATALYSIS
LA English
DT Article
DE deoxygenation; dihydrogen complexes; heterolytic reaction; homogeneous
catalysis; metal hydrides; ruthenium
ID HYDRIDE TRANSFER-REACTIONS; TRANSITION-METAL HYDRIDES;
ION-EXCHANGE-RESIN; DIHYDROGEN COMPLEXES; DONOR ABILITIES; GLYCEROL
HYDROGENOLYSIS; SELECTIVE DEOXYGENATION; COORDINATED DIHYDROGEN;
BIFUNCTIONAL CATALYST; DIHYDRIDE COMPLEXES
AB Deoxygenation of 1,2-propanediol (1.0M in sulfolane) catalyzed by bis(dicarbonyl)(mu-hydrido) (pentamethylcyclopentadiene)ruthenium trifluoromethanesulfonate ({[Cp*Ru(CO)(2)](2)(mu-H)}(+)OTf(-)) (0.5 mol%) at 110 degrees C under hydrogen (750 psi) in the presence of trifluoromethanesulfonic acid (HOTf) (60 mM) gives n-propanol as the major product, indicating high selectivity for deoxygenation of the internal hydroxy group over the terminal hydroxy group of the diol. The deoxygenation of 1,2-propanediol is strongly influenced by the concentration of acid, giving faster rates and proceeding to higher conversions as the concentration of HOTf is increased. Propionaldehyde was observed as an intermediate, being formed through acid-catalyzed dehydration of 1,2-propanediol. This aldehyde is hydrogenated to n-propanol through an Ionic pathway involving protonation of the aldehyde, followed by hydride transfer from the neutral hydride, dicarbonyl(pentamethylcyclopentadiene)ruthenium hydride [Cp*Ru(CO)(2)H]. The proposed mechanism for the deoxygenation/hydrogenation reaction involves formation of a highly acidic dihydrogen complex [Cp*Ru(CO)(2)(eta(2)-H(2))](+)OTf(-).
C1 [Schlaf, Marcel; Ghosh, Prasenjit; Bullock, R. Morris] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
[Bullock, R. Morris] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA.
[Fagan, Paul J.; Hauptman, Elisabeth] EI DuPont Nemours & Co Inc, Expt Stn, Cent Res & Dev, Wilmington, DE 19880 USA.
RP Bullock, RM (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
EM morris.bullock@pnl.gov
RI Bullock, R. Morris/L-6802-2016
OI Bullock, R. Morris/0000-0001-6306-4851
FU US Department of Energy [DE-AC02-98CH10886]; Office of Basic Energy
Sciences, Division of Chemical Sciences; NSERC (Canada)
FX Research at Brookhaven National Laboratory was carried out under
contract DE-AC02-98CH10886 with the US Department of Energy. Pacific
Northwest National Laboratory is operated by Battelle for the US.
Department of Energy. We thank the US. Department of Energy, Office of
Science, Laboratory Technology Research Program, and the Office of Basic
Energy Sciences, Division of Chemical Sciences, for support. We thank
NSERC (Canada) for a postdoctoral fellowship to M.S.
NR 58
TC 52
Z9 52
U1 3
U2 57
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1615-4150
J9 ADV SYNTH CATAL
JI Adv. Synth. Catal.
PD MAR
PY 2009
VL 351
IS 5
BP 789
EP 800
DI 10.1002/adsc.200800685
PG 12
WC Chemistry, Applied; Chemistry, Organic
SC Chemistry
GA 428YD
UT WOS:000264887100012
ER
PT J
AU Quinn, NWT
AF Quinn, Nigel W. T.
TI Information technology and innovative drainage management practices for
selenium load reduction from irrigated agriculture to provide
stakeholder assurances and meet contaminant mass loading policy
objectives
SO AGRICULTURAL WATER MANAGEMENT
LA English
DT Article
DE Selenium drainage; TMDL; Decision support; Water quality
AB Many perceive the implementation of environmental regulatory policy, especially concerning non-point source pollution from irrigated agriculture, as beingless efficient in the United States than in many other countries. This is partly a result of the stakeholder involvement process but is also a reflection of the inability to make effective use of Environmental Decision Support Systems (EDSS) to facilitate technical information exchange with stakeholders and to provide a forum for innovative ideas for controlling non-point source pollutant loading. This paper describes one of the success stories where a standardized Environmental Protection Agency (EPA) methodology was modified to better suit regulation of a trace element in agricultural subsurface drainage and information technology was developed to help guide stakeholders, provide assurances to the public and encourage innovation while improving compliance with State water quality objectives. The geographic focus of the paper is the western San Joaquin Valley where, in 1985, evapo-concentration of selenium in agricultural subsurface drainage water, diverted into large ponds within a federal wildlife refuge, caused teratogenecity in waterfowl embryos and in other sensitive wildlife species. The fallout from this environmental disaster was a concerted attempt by State and Federal water agencies to regulate non-point source loads of the trace element selenium. The complexity of selenium hydrogeochemistry, the difficulty and expense of selenium concentration monitoring and political discord between agricultural and environmental interests created challenges to the regulation process. Innovative policy and institutional constructs, supported by environmental monitoring and the web-based data management and dissemination systems, provided essential decision support, created opportunities for adaptive management and ultimately contributed to project success. The paper provides a retrospective on the contentious planning process and offers suggestions as to how the technical and institutional issues could have been resolved faster through early adoption of some of the core principles of sound EDSS design. (C) 2008 Elsevier B.V. All rights reserved.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Quinn, NWT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,Bldg 70A-3317H, Berkeley, CA 94720 USA.
EM nwquinn@lbl.gov
RI feng, yongzhong/F-5090-2012; Quinn, Nigel/G-2407-2015
OI feng, yongzhong/0000-0002-5202-4368; Quinn, Nigel/0000-0003-3333-4763
NR 17
TC 1
Z9 1
U1 2
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-3774
J9 AGR WATER MANAGE
JI Agric. Water Manage.
PD MAR
PY 2009
VL 96
IS 3
BP 484
EP 492
DI 10.1016/j.agwat.2008.09.008
PG 9
WC Agronomy; Water Resources
SC Agriculture; Water Resources
GA 410WC
UT WOS:000263608000014
ER
PT J
AU Lynch, RM
Shen, T
Gnanakaran, S
Derdeyn, CA
AF Lynch, Rebecca M.
Shen, Tongye
Gnanakaran, S.
Derdeyn, Cynthia A.
TI Appreciating HIV Type 1 Diversity: Subtype Differences in Env
SO AIDS RESEARCH AND HUMAN RETROVIRUSES
LA English
DT Review
ID HUMAN-IMMUNODEFICIENCY-VIRUS; NEUTRALIZING ANTIBODY-RESPONSES; PROXIMAL
EXTERNAL REGION; MOLECULE CCR5 INHIBITOR; DISEASE PROGRESSION;
MONOCLONAL-ANTIBODIES; PHENOTYPIC CHARACTERIZATION; GENETIC DIVERSITY;
PRIMARY INFECTION; CORECEPTOR USAGE
AB Human immunodeficiency virus type 1 (HIV-1) group M is responsible for the current AIDS pandemic and exhibits exceedingly high levels of viral genetic diversity around the world, necessitating categorization of viruses into distinct lineages, or subtypes. These subtypes can differ by around 35% in the envelope (Env) glycoproteins of the virus, which are displayed on the surface of the virion and are targets for both neutralizing antibody and cell-mediated immune responses. This diversity reflects the remarkable ability of the virus to adapt to selective pressures, the bulk of which is applied by the host immune response, and represents a serious obstacle for developing an effective vaccine with broad coverage. Thus, it is important to understand the underlying biological consequences of intersubtype diversity. Recent studies have revealed that some of the HIV-1 subtypes exhibit phenotypic differences stemming from subtle changes in Env structure, particularly within the highly immunogenic V3 domain, which participates directly in viral entry. This review will therefore explore current research that describes subtype differences in Env at the genetic and phenotypic level, focusing in particular on V3, and highlighting recent discoveries about the unique features of subtype C Env, which is the most globally prevalent subtype.
C1 [Derdeyn, Cynthia A.] Emory Univ, Emory Vaccine Ctr, Atlanta, GA 30329 USA.
[Derdeyn, Cynthia A.] Emory Univ, Yerkes Natl Primate Res Ctr, Atlanta, GA 30329 USA.
[Derdeyn, Cynthia A.] Emory Univ, Dept Pathol & Lab Med, Atlanta, GA 30329 USA.
[Shen, Tongye] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Lynch, Rebecca M.] Emory Univ, Immunol & Mol Pathogenesis Program, Atlanta, GA 30329 USA.
RP Derdeyn, CA (reprint author), Emory Univ, Emory Vaccine Ctr, 954 Gatewood Rd,Suite 1024, Atlanta, GA 30329 USA.
EM cynthia.derdeyn@emory.edu
RI Shen, Tongye/A-9718-2008;
OI Shen, Tongye/0000-0003-1495-3104; Gnanakaran, S/0000-0002-9368-3044
FU NIH [R01-AI-58706]
FX We would like to acknowledge Dr. Abraham Pinter for critical comments;
Drs. Susan Allen and Joseph Mulenga and Zambia Emory HIV Research
Project for collaboration; and NIH Grant R01-AI-58706 for funding.
NR 128
TC 29
Z9 30
U1 1
U2 9
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 0889-2229
J9 AIDS RES HUM RETROV
JI Aids Res. Hum. Retrovir.
PD MAR
PY 2009
VL 25
IS 3
BP 237
EP 248
DI 10.1089/aid.2008.0219
PG 12
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA 425KV
UT WOS:000264636300001
PM 19327047
ER
PT J
AU Rousseau, CM
Lockhart, DW
Listgarten, J
Maley, SN
Kadie, C
Learn, GH
Nickle, DC
Heckerman, DE
Deng, W
Brander, C
Ndung'u, T
Coovadia, H
Goulder, PJR
Korber, BT
Walker, BD
Mullins, JI
AF Rousseau, Christine M.
Lockhart, David W.
Listgarten, Jennifer
Maley, Stephen N.
Kadie, Carl
Learn, Gerald H.
Nickle, David C.
Heckerman, David E.
Deng, Wenjie
Brander, Christian
Ndung'u, Thumbi
Coovadia, Hoosen
Goulder, Philip J. R.
Korber, Bette T.
Walker, Bruce D.
Mullins, James I.
TI Rare HLA Drive Additional HIV Evolution Compared to More Frequent
Alleles
SO AIDS RESEARCH AND HUMAN RETROVIRUSES
LA English
DT Article
ID HUMAN-IMMUNODEFICIENCY-VIRUS; LYMPHOCYTE ESCAPE VARIANTS; CLASS-I
SUPERTYPES; TYPE-1 INFECTION; CTL ESCAPE; VIRAL LOAD; DISEASE
PROGRESSION; IMMUNE ESCAPE; TRANSMISSION; GAG
AB HIV-1 can evolve HLA-specific escape variants in response to HLA-mediated cellular immunity. HLA alleles that are common in the host population may increase the frequency of such escape variants at the population level. When loss of viral fitness is caused by immune escape variation, these variants may revert upon infection of a new host who does not have the corresponding HLA allele. Furthermore, additional escape variants may appear in response to the nonconcordant HLA alleles. Because individuals with rare HLA alleles are less likely to be infected by a partner with concordant HLA alleles, viral populations infecting hosts with rare HLA alleles may undergo a greater amount of evolution than those infecting hosts with common alleles due to the loss of preexisting escape variants followed by new immune escape. This hypothesis was evaluated using maximum likelihood phylogenetic trees of each gene from 272 full-length HIV-1 sequences. Recent viral evolution, as measured by the external branch length, was found to be inversely associated with HLA frequency in nef (p < 0.02), env (p < 0.03), and pol (p <= 0.05), suggesting that rare HLA alleles provide a disproportionate force driving viral evolution compared to common alleles, likely due to the loss of preexisting escape variants during early stages postinfection.
C1 [Rousseau, Christine M.] Univ Washington, Dept Microbiol, Sustainable Sci Inst, Seattle, WA 98103 USA.
[Lockhart, David W.] Univ Washington, Dept Biostat, Seattle, WA 98103 USA.
[Listgarten, Jennifer; Kadie, Carl; Heckerman, David E.] Microsoft Res, eSci Res Grp, Redmond, WA 98052 USA.
[Brander, Christian; Ndung'u, Thumbi; Goulder, Philip J. R.; Walker, Bruce D.] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Partners AIDS Res Ctr, Boston, MA 02114 USA.
[Ndung'u, Thumbi; Coovadia, Hoosen; Goulder, Philip J. R.; Walker, Bruce D.] Univ KwaZulu Natal, Nelson R Mandela Sch Med, HIV Pathogenesis Program, Durban, South Africa.
[Goulder, Philip J. R.] Nuffield Dept Med, Dept Pediat, Oxford, England.
[Korber, Bette T.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Korber, Bette T.] Santa Fe Inst, Santa Fe, NM 87501 USA.
[Walker, Bruce D.] Howard Hughes Med Inst, Chevy Chase, MD 20815 USA.
[Mullins, James I.] Univ Washington, Dept Med, Washington, DC 98103 USA.
RP Rousseau, CM (reprint author), Univ Washington, Dept Microbiol, Sustainable Sci Inst, 3515 Ashworth Ave N, Seattle, WA 98103 USA.
EM crousseau@ssilink.org
OI Brander, Christian/0000-0002-0548-5778; Ndung'u,
Thumbi/0000-0003-2962-3992; Korber, Bette/0000-0002-2026-5757
FU University of Washington Center For AIDS Research [AI27757, AI047734]
FX The authors would like to thank all of the participants who contributed
time, information, and blood samples for the study. Funding for this
research was provided by University of Washington Center For AIDS
Research (AI27757), including a New Investigator Award (AI047734) to C.
M. R., by Puget Sound Partners in Global Health (to C. M. R.), and by
Microsoft Research (to J. L., C. K., and D. E. H.). This work was
previously presented in part at the 14th Conference on Retroviruses and
Opportunistic Infections, 2007.
NR 38
TC 6
Z9 6
U1 0
U2 1
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 0889-2229
J9 AIDS RES HUM RETROV
JI Aids Res. Hum. Retrovir.
PD MAR
PY 2009
VL 25
IS 3
BP 297
EP 303
DI 10.1089/aid.2008.0208
PG 7
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA 425KV
UT WOS:000264636300007
PM 19327049
ER
PT J
AU Moore, DS
Scharff, RJ
AF Moore, David S.
Scharff, R. Jason
TI Portable Raman explosives detection
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Review
DE Raman spectroscopy; Field analysis; Fluorescence interference;
Explosives detection
ID DIFFERENCE SPECTROSCOPY; FLUORESCENCE REJECTION; 785 NM; EXCITATION;
SPECTRA; SUBTRACTION; ALGORITHM; REMOVAL
AB Recent advances in portable Raman instruments have dramatically increased their application to emergency response and forensics, as well as homeland defense. This paper reviews the relevant attributes and disadvantages of portable Raman spectroscopy, both essentially and instrumentally, to the task of explosives detection in the field.
C1 [Moore, David S.; Scharff, R. Jason] Los Alamos Natl Lab, Shock & Detonat Phys Grp, Los Alamos, NM 87545 USA.
RP Moore, DS (reprint author), Los Alamos Natl Lab, Shock & Detonat Phys Grp, POB 1663, Los Alamos, NM 87545 USA.
EM moored@lanl.gov
RI Moore, David/C-8692-2013;
OI Scharff, Robert/0000-0002-1708-8964
FU National Nuclear Security Administration of the US Department of Energy
[DE-AC52-06NA25396]
FX This work was performed at Los Alamos National Laboratory, 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 29
TC 92
Z9 94
U1 3
U2 63
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD MAR
PY 2009
VL 393
IS 6-7
BP 1571
EP 1578
DI 10.1007/s00216-008-2499-5
PG 8
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 413XM
UT WOS:000263826100004
PM 19023565
ER
PT J
AU Warwick, PE
Croudace, IW
Hillegonds, DJ
AF Warwick, P. E.
Croudace, I. W.
Hillegonds, D. J.
TI Effective Determination of the Long-lived Nuclide Ca-41 in Nuclear
Reactor Bioshield Concretes: Comparison of Liquid Scintillation Counting
and Accelerator Mass Spectrometry
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID RADIOACTIVE CALCIUM-45; BIOLOGICAL SAMPLES; ISOTOPE
AB The routine application of liquid scintillation counting to Ca-41 determination has been hindered by the absence of traceable calibration standards of known Ca-41 activity concentrations. The introduction of the new IRMM Ca-41 mass-spectrometric standards with sufficiently high Ca-41 activities for radiometric detection has partly overcome this although accurate measurement of stable Ca concentrations coupled with precise half-life data are still required to correct the certified Ca-41:Ca-40 ratios to Ca-41 activity concentrations. In this study, Ca-41 efficiency versus quench curves have been produced using the IRMM standard, and their accuracy validated by comparison with theoretical calculations of Ca-41 efficiencies. Further verification of the technique was achieved through the analysis of Ca-41 in a reactor bioshield core that had been previously investigated for other radionuclide variations. Calcium-41 activity concentrations of up to 25 Bq/g were detected. Accelerator mass spectrometry (AMS) measurements of the same suite of samples showed a very good agreement, providing validation of the procedure. Calcium-41 activity concentrations declined exponentially with distance from the core of the nuclear reactor and correlated well with the predicted neutron flux.
C1 [Warwick, P. E.; Croudace, I. W.] Natl Oceanog Ctr, GAU Radioanalyt, Southampton SO14 3ZH, Hants, England.
[Hillegonds, D. J.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Div Chem Sci, Livermore, CA 94550 USA.
RP Warwick, PE (reprint author), Natl Oceanog Ctr, GAU Radioanalyt, European Way, Southampton SO14 3ZH, Hants, England.
EM pew@noc.soton.ac.uk
OI Croudace, Ian/0000-0003-1547-5650; Warwick, Phillip/0000-0001-8774-5125
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX The authors thank Dr Fran Rowlands (GAU) for undertaking some of the
analytical separations, Dr N. Holland (GAU) for the CN2003 predictions,
Mr. D. Green (NOCS) for ICPAES measurements and UKAEA (Winfrith) for
providing samples of the SGHWR bioshield core. AMS analysis was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
NR 30
TC 6
Z9 6
U1 0
U2 6
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 MAR 1
PY 2009
VL 81
IS 5
BP 1901
EP 1906
DI 10.1021/ac802225a
PG 6
WC Chemistry, Analytical
SC Chemistry
GA 413AK
UT WOS:000263765100029
PM 19178149
ER
PT J
AU Van Neste, CW
Senesac, LR
Thundat, T
AF Van Neste, C. W.
Senesac, L. R.
Thundat, T.
TI Standoff Spectroscopy of Surface Adsorbed Chemicals
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID QUANTUM CASCADE LASERS
AB Despite its immediate applications, selective detection of trace quantities of surface adsorbed chemicals, such as explosives, without physically collecting the sample molecules is a challenging task. Standoff spectroscopic techniques offer an ideal method of detecting chemicals without using a sample collection step. Though standoff spectroscopic techniques are capable of providing high selectivity, their demonstrated sensitivities are poor. Here we describe standoff detection of trace quantities of surface adsorbed chemicals using two quantum cascade lasers operated simultaneously, with tunable wavelength windows that match with absorption peaks of the analytes. This standoff method is a variation of photoacoustic spectroscopy, where scattered light from the sample surface is used for exciting acoustic resonance of the detector. We demonstrate a sensitivity of 100 ng/cm(2) and a standoff detection distance of 20 m for surface adsorbed analytes such as explosives and tributyl phosphate.
C1 [Van Neste, C. W.; Senesac, L. R.; Thundat, T.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Senesac, L. R.; Thundat, T.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
RP Thundat, T (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
EM thundattg@ornl.gov
FU U.S. Department of Energy's Office of Nonproliferation Research;
Development in the National Nuclear Security Administration; Office of
Naval Research (ONR); Ridge National Laboratory; U.S. Department of
Energy [DE-AC05-00OR22725]
FX The authors would like to thank R. J. Warmack for the loan of a QCM.
This work was funded by the U.S. Department of Energy's Office of
Nonproliferation Research and Development in the National Nuclear
Security Administration, the Office of Naval Research (ONR), and NA-22.
Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the
U.S. Department of Energy under Contract No. DE-AC05-00OR22725.
NR 21
TC 57
Z9 57
U1 0
U2 23
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 MAR 1
PY 2009
VL 81
IS 5
BP 1952
EP 1956
DI 10.1021/ac802364e
PG 5
WC Chemistry, Analytical
SC Chemistry
GA 413AK
UT WOS:000263765100036
PM 19186935
ER
PT J
AU Krenkova, J
Lacher, NA
Svec, F
AF Krenkova, Jana
Lacher, Nathan A.
Svec, Frantisek
TI Highly Efficient Enzyme Reactors Containing Trypsin and Endoproteinase
LysC Immobilized on Porous Polymer Monolith Coupled to MS Suitable for
Analysis of Antibodies
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID PROTEIN DIGESTION; LIQUID-CHROMATOGRAPHY; MASS-SPECTROMETRY;
CAPILLARY-ELECTROPHORESIS; AFFINITY-CHROMATOGRAPHY; MICROFLUIDIC
DEVICES; ONLINE DIGESTION; MICROREACTOR; IDENTIFICATION; SEPARATION
AB Capillary enzymatic microreactors containing trypsin and endoproteinase LysC immobilized on a porous polymer monolith have been prepared and used for the characterization and identification of proteins such as cytochrome c, bovine serum albumin, and high-molecular weight human immunoglobulin G. The hydrophilicity of diol functionalities originating from the hydrolyzed poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolith was not sufficient to avoid adsorption of hydrophobic albumin in a highly aqueous mobile phase. Therefore, this monolith was first hydrophilized via photografting of poly(ethylene glycol) methacrylate followed by photografting of a 4-vinyl-2,2-dimethylazlactone to provide the pore surface with reactive functionalities required for immobilization. This new approach reduced the undesired nonspecific adsorption of proteins and peptides and facilitated control of both the enzyme immobilization and protein digestion processes. The enzymatic reactors were coupled off-line with MALDI/TOF MS and/or on-line with ESI/TOF MS. Experimental conditions for digestion were optimized using cytochrome c and bovine serum albumin as model proteins. The optimized reactors were then integrated into a multidimensional system comprised of a monolithic capillary enzyme reactor, an in-line nanoLC separation of peptides using a poly(lauryl methacrylate-co-ethylene dimethacrylate) monolithic column, and ESI/ TOF MS. With the use of this system, immunoglobulin G was digested at room temperature in 6 min to an extent similar to that achieved with soluble enzyme at 37 degrees C after 24 h.
C1 [Krenkova, Jana; Svec, Frantisek] EO Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
[Lacher, Nathan A.] Pfizer Global Biol, Analyt Res & Dev, St Louis, MO 63017 USA.
RP Svec, F (reprint author), EO Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA.
EM fsvec@lbl.gov
FU Director, Office of Science; Office of Basic Energy Sciences; Materials
Sciences and Engineering Division of the U.S. Department of Energy
[DE-AC02-05CH11231]
FX This work was 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-AC02-05CH11231.
Support of J.K. by Pfizer Inc. is gratefully acknowledged.
NR 43
TC 106
Z9 111
U1 8
U2 91
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 MAR 1
PY 2009
VL 81
IS 5
BP 2004
EP 2012
DI 10.1021/ac8026564
PG 9
WC Chemistry, Analytical
SC Chemistry
GA 413AK
UT WOS:000263765100044
PM 19186936
ER
PT J
AU Bridle, S
Shawe-Taylor, J
Amara, A
Applegate, D
Balan, ST
Berge, J
Bernstein, G
Dahle, H
Erben, T
Gill, M
Heavens, A
Heymans, C
High, FW
Hoekstra, H
Jarvis, M
Kirk, D
Kitching, T
Kneib, JP
Kuijken, K
Lagatutta, D
Mandelbaum, R
Massey, R
Mellier, Y
Moghaddam, B
Moudden, Y
Nakajima, R
Paulin-Henriksson, S
Pires, S
Rassat, A
Refregier, A
Rhodes, J
Schrabback, T
Semboloni, E
Shmakova, M
Van Waerbeke, L
Witherick, D
Voigt, L
Wittman, D
AF Bridle, Sarah
Shawe-Taylor, John
Amara, Adam
Applegate, Douglas
Balan, Sreekumar T.
Berge, Joel
Bernstein, Gary
Dahle, Hakon
Erben, Thomas
Gill, Mandeep
Heavens, Alan
Heymans, Catherine
High, F. William
Hoekstra, Henk
Jarvis, Mike
Kirk, Donnacha
Kitching, Thomas
Kneib, Jean-Paul
Kuijken, Konrad
Lagatutta, David
Mandelbaum, Rachel
Massey, Richard
Mellier, Yannick
Moghaddam, Baback
Moudden, Yassir
Nakajima, Reiko
Paulin-Henriksson, Stephane
Pires, Sandrine
Rassat, Anais
Refregier, Alexandre
Rhodes, Jason
Schrabback, Tim
Semboloni, Elisabetta
Shmakova, Marina
Van Waerbeke, Ludovic
Witherick, Dugan
Voigt, Lisa
Wittman, David
TI HANDBOOK FOR THE GREAT08 CHALLENGE: AN IMAGE ANALYSIS COMPETITION FOR
COSMOLOGICAL LENSING
SO ANNALS OF APPLIED STATISTICS
LA English
DT Article
DE Inference; inverse problems; astronomy
ID WEAK GRAVITATIONAL SHEAR; LARGE-SCALE STRUCTURE; NONLINEAR CLUSTER
INVERSION; GALAXY SHAPE MEASUREMENT; DARK-MATTER; SYSTEMATIC-ERRORS;
POLAR SHAPELETS; COSMIC SHEAR; DISTORTIONS; CALIBRATION
AB The GRavitational lEnsing Accuracy Testing 2008 (GREAT08) Challenge focuses on a problem that is of crucial importance for future observations in cosmology. The shapes of distant galaxies can be used to determine the properties of dark energy and the nature of gravity, because light from those galaxies is bent by gravity from the intervening dark matter. The observed galaxy images appear distorted, although only slightly, and their shapes must be precisely disentangled from the effects of pixelisation, convolution and noise. The worldwide gravitational lensing community has made significant progress in techniques to measure these distortions via the Shear TEsting Program (STEP). Via STEP, we have run challenges within our own community, and come to recognise that this particular image analysis problem is ideally matched to experts in statistical inference, inverse problems and computational learning. Thus, in order to continue the progress seen in recent years, we are seeking an infusion of new ideas from these communities. This document details the GREAT08 Challenge for potential participants. Please visit www.great08challenge.info for the latest information.
C1 [Bridle, Sarah; Shawe-Taylor, John; Balan, Sreekumar T.; Kirk, Donnacha; Witherick, Dugan; Voigt, Lisa] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Amara, Adam] Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China.
[Applegate, Douglas; Shmakova, Marina] Stanford Linear Accelerator Ctr, Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Berge, Joel; Moghaddam, Baback; Rhodes, Jason] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Berge, Joel; Massey, Richard; Moghaddam, Baback; Rhodes, Jason] CALTECH, Pasadena, CA 91125 USA.
[Bernstein, Gary; Jarvis, Mike; Nakajima, Reiko] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA.
[Erben, Thomas; Semboloni, Elisabetta] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany.
[Heavens, Alan] Univ Edinburgh, Inst Astron, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland.
[High, F. William] Harvard Univ, Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Kitching, Thomas] Univ Oxford, Dept Phys, Oxford OX1 3RH, England.
[Berge, Joel; Moudden, Yassir; Paulin-Henriksson, Stephane; Pires, Sandrine; Rassat, Anais; Refregier, Alexandre] SAp CEA Saclay, Commissariat Energie Atom, F-91191 Gif Sur Yvette, France.
[Dahle, Hakon; Kneib, Jean-Paul] Observ Astron Marseille Prov, Lab Astrophys Marseille, F-13388 Marseille 13, France.
[Gill, Mandeep] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Heymans, Catherine; Van Waerbeke, Ludovic] Univ British Columbia, Vancouver, BC V6T 1Z4, Canada.
[Hoekstra, Henk] Univ Victoria, Victoria, BC V8W 2Y2, Canada.
[Kuijken, Konrad; Schrabback, Tim] Leiden Univ, Leiden Observ, Huygens Lab, NL-2333 CA Leiden, Netherlands.
[Lagatutta, David; Wittman, David] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Mandelbaum, Rachel] Inst Adv Study, Princeton, NJ 08540 USA.
[Heymans, Catherine; Mellier, Yannick] Inst Astrophys Paris, F-75014 Paris, France.
RP Bridle, S (reprint author), UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.
EM sarah.bridle@ucl.ac.uk
RI Witherick, Dugan/C-9403-2014; Mandelbaum, Rachel/N-8955-2014; Kneib,
Jean-Paul/A-7919-2015
OI Wittman, David/0000-0002-0813-5888; Rassat, Anais/0000-0002-5476-6461;
Hoekstra, Henk/0000-0002-0641-3231; Massey, Richard/0000-0002-6085-3780;
Witherick, Dugan/0000-0002-9175-0151; Mandelbaum,
Rachel/0000-0003-2271-1527; Kneib, Jean-Paul/0000-0002-4616-4989
FU Royal Society; European Commission; NASA
FX Supported in part by the Jet Propulsion Laboratory, which is run by
Caltech under a contract from NASA.
NR 53
TC 61
Z9 61
U1 1
U2 3
PU INST MATHEMATICAL STATISTICS
PI CLEVELAND
PA 3163 SOMERSET DR, CLEVELAND, OH 44122 USA
SN 1932-6157
J9 ANN APPL STAT
JI Ann. Appl. Stat.
PD MAR
PY 2009
VL 3
IS 1
BP 6
EP 37
DI 10.1214/08-AOAS222
PG 32
WC Statistics & Probability
SC Mathematics
GA 522EA
UT WOS:000271979400002
ER
PT J
AU Learman, DR
Yi, H
Brown, SD
Martin, SL
Geesey, GG
Stevens, AM
Hochella, MF
AF Learman, Deric R.
Yi, Haakrho
Brown, Steven D.
Martin, Stanton L.
Geesey, Gill G.
Stevens, Ann M.
Hochella, Michael F., Jr.
TI Involvement of Shewanella oneidensis MR-1 LuxS in Biofilm Development
and Sulfur Metabolism
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID QUORUM-SENSING SIGNAL; GRAM-NEGATIVE BACTERIA; SALMONELLA-TYPHIMURIUM;
AGROBACTERIUM-TUMEFACIENS; STREPTOCOCCUS-MUTANS; ESCHERICHIA-COLI;
MARINE-BACTERIA; VIBRIO-HARVEYI; AUTOINDUCER-2; GENES
AB The role of LuxS in Shewanella oneidensis MR-1 has been examined by transcriptomic profiling, biochemical, and physiological experiments. The results indicate that a mutation in luxS alters biofilm development, not by altering quorum-sensing abilities but by disrupting the activated methyl cycle (AMC). The S. oneidensis wild type can produce a luminescence response in the AI-2 reporter strain Vibrio harveyi MM32. This luminescence response is abolished upon the deletion of luxS. The deletion of luxS also alters biofilm formations in static and flowthrough conditions. Genetic complementation restores the mutant biofilm defect, but the addition of synthetic AI-2 has no effect. These results suggest that AI-2 is not used as a quorum-sensing signal to regulate biofilm development in S. oneidensis. Growth on various sulfur sources was examined because of the involvement of LuxS in the AMC. A mutation in luxS produced a reduced ability to grow with methionine as the sole sulfur source. Methionine is a key metabolite used in the AMC to produce a methyl source in the cell and to recycle homocysteine. These data suggest that LuxS is important to metabolizing methionine and the AMC in S. oneidensis.
C1 [Learman, Deric R.; Hochella, Michael F., Jr.] Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA.
[Yi, Haakrho; Brown, Steven D.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Martin, Stanton L.] N Carolina State Univ, Bioinformat Res Ctr, Raleigh, NC 27606 USA.
[Geesey, Gill G.] Montana State Univ, Dept Microbiol, Bozeman, MT 59717 USA.
[Stevens, Ann M.] Virginia Polytech Inst & State Univ, Dept Biol Sci, Blacksburg, VA 24061 USA.
RP Learman, DR (reprint author), Harvard Univ, Sch Engn & Appl Sci, Engn Sci Lab, Room 228, Cambridge, MA 02138 USA.
EM learman@seas.harvard.edu
RI Brown, Steven/A-6792-2011;
OI Brown, Steven/0000-0002-9281-3898; Stevens, Ann/0000-0002-4942-0124
FU GAAN fellowship (U.S. Department of Education); U. S. Department of
Energy's OBES Geosciences [DE-FG02-06ER 15786]; U. S. Department of
Energy's Office of Science, Biological and Environmental Research; U. S.
Department of Energy [DE-AC05-00OR22725]
FX This research was funded by a GAAN fellowship (U.S. Department of
Education) and the U. S. Department of Energy's OBES Geosciences program
(grant DE-FG02-06ER 15786). This research was funded in part by the U.
S. Department of Energy's Office of Science, Biological and
Environmental Research, Environmental Remediation Sciences program. Oak
Ridge National Laboratory is managed by UT-Battelle, LLC, for the U. S.
Department of Energy under contract DE-AC05-00OR22725.
NR 53
TC 18
Z9 22
U1 1
U2 26
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD MAR 1
PY 2009
VL 75
IS 5
BP 1301
EP 1307
DI 10.1128/AEM.01393-08
PG 7
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 411KR
UT WOS:000263649000011
PM 19124589
ER
PT J
AU Perez, G
Pangilinan, J
Pisabarro, AG
Ramirez, L
AF Perez, Gumer
Pangilinan, Jasmyn
Pisabarro, Antonio G.
Ramirez, Lucia
TI Telomere Organization in the Ligninolytic Basidiomycete Pleurotus
ostreatus
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID RICE BLAST FUNGUS; POLYMERASE-CHAIN-REACTION; GENETIC-LINKAGE MAP;
MAGNAPORTHE-ORYZAE; USTILAGO-MAYDIS; RECQ HELICASES; RECOMBINATION
FREQUENCIES; DYSFUNCTIONAL TELOMERES; (TTAGGG)(N) SEQUENCES; CHROMOSOME
ENDS
AB Telomeres are structural and functional chromosome regions that are essential for the cell cycle to proceed normally. They are, however, difficult to map genetically and to identify in genome-wide sequence programs because of their structure and repetitive nature. We studied the telomeric and subtelomeric organization in the basidiomycete Pleurotus ostreatus using a combination of molecular and bioinformatics tools that permitted us to determine 19 out of the 22 telomeres expected in this fungus. The telomeric repeating unit in P. ostreatus is TTAGGG, and the numbers of repetitions of this unit range between 25 and 150. The mapping of the telomere restriction fragments to linkage groups 6 and 7 revealed polymorphisms compatible with those observed by pulsed field gel electrophoresis separation of the corresponding chromosomes. The subtelomeric regions in Pleurotus contain genes similar to those described in other eukaryotic systems. The presence of a cluster of laccase genes in chromosome 6 and a bipartite structure containing a Het-related protein and an alcohol dehydrogenase are especially relevant; this bipartite structure is characteristic of the Pezizomycotina fungi Neurospora crassa and Aspergillus terreus. As far as we know, this is the first report describing the presence of such structures in basidiomycetes and the location of a laccase gene cluster in the subtelomeric region, where, among others, species-specific genes allowing the organism to adapt rapidly to the environment usually map.
C1 [Perez, Gumer; Pisabarro, Antonio G.; Ramirez, Lucia] Pub Univ Navarre, Genet & Microbiol Res Grp, Dept Agrarian Prod, Pamplona 31006, Spain.
[Pangilinan, Jasmyn] US Dept Energy Joint Genome Inst, Walnut Creek, CA 94598 USA.
RP Ramirez, L (reprint author), Pub Univ Navarre, Genet & Microbiol Res Grp, Dept Agrarian Prod, Pamplona 31006, Spain.
EM lramirez@unavarra.es
RI Pisabarro, Antonio/K-3622-2014; Ramirez, Lucia/K-3845-2014; Perez ,
Gumer/L-7970-2014
OI Pisabarro, Antonio/0000-0001-6987-5794; Ramirez,
Lucia/0000-0002-0023-4240;
FU Public University of Navarre; U. S. Department of Energy's Office of
Science Biological and Environmental Research Program; University of
California; Lawrence Livermore National Laboratory [W-7405-Eng-48];
Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Los Alamos
National Laboratory [DE-AC02-06NA25396]; [AGL2005-08005-C02-01];
[GEN2006-27843-E]
FX This work has been supported by funds from the AGL2005-08005-C02- 01 and
GEN2006-27843- E grants and by additional institutional support from the
Public University of Navarre. Some of the sequence data were produced in
the P. ostreatus genome sequence project developed at the JGI within the
community Sequence Program under the auspices of the U. S. Department of
Energy's Office of Science Biological and Environmental Research Program
and by the University of California, Lawrence Livermore National
Laboratory, under contract no. W-7405-Eng-48, Lawrence Berkeley National
Laboratory under contract no. DE-AC02-05CH11231, and Los Alamos National
Laboratory under contract no. DE-AC02-06NA25396.
NR 76
TC 12
Z9 16
U1 1
U2 7
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD MAR 1
PY 2009
VL 75
IS 5
BP 1427
EP 1436
DI 10.1128/AEM.01889-08
PG 10
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 411KR
UT WOS:000263649000027
PM 19114509
ER
PT J
AU Sagaram, US
DeAngelis, KM
Trivedi, P
Andersen, GL
Lu, SE
Wang, N
AF Sagaram, Uma Shankar
DeAngelis, Kristen M.
Trivedi, Pankaj
Andersen, Gary L.
Lu, Shi-En
Wang, Nian
TI Bacterial Diversity Analysis of Huanglongbing Pathogen-Infected Citrus,
Using PhyloChip Arrays and 16S rRNA Gene Clone Library Sequencing
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID CANDIDATUS LIBERIBACTER ASIATICUS; POLYMERASE-CHAIN-REACTION; ENDOPHYTIC
COLONIZATION; COMMUNITY STRUCTURE; BIOLOGICAL-CONTROL; GREENING DISEASE;
POPULATIONS; SOILS; PCR; DNA
AB The bacterial diversity associated with citrus leaf midribs was characterized for citrus groves that contained the Huanglongbing (HLB) pathogen, which has yet to be cultivated in vitro. We employed a combination of high-density phylogenetic 16S rRNA gene microarrays and 16S rRNA gene clone library sequencing to determine the microbial community composition for symptomatic and asymptomatic citrus midribs. Our results revealed that citrus leaf midribs can support a diversity of microbes. PhyloChip analysis indicated that 47 orders of bacteria in 15 phyla were present in the citrus leaf midribs, while 20 orders in 8 phyla were observed with the cloning and sequencing method. PhyloChip arrays indicated that nine taxa were significantly more abundant in symptomatic midribs than in asymptomatic midribs. "Candidatus Liberibacter asiaticus" was detected at a very low level in asymptomatic plants but was over 200 times more abundant in symptomatic plants. The PhyloChip analysis results were further verified by sequencing 16S rRNA gene clone libraries, which indicated the dominance of "Candidatus Liberibacter asiaticus" in symptomatic leaves. These data implicate "Candidatus Liberibacter asiaticus" as the pathogen responsible for HLB disease.
C1 [Sagaram, Uma Shankar; Trivedi, Pankaj; Wang, Nian] Univ Florida, Ctr Citrus Res & Educ, Dept Microbiol & Cell Sci, IFAS, Lake Alfred, FL 33850 USA.
[DeAngelis, Kristen M.; Andersen, Gary L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
[Lu, Shi-En] Mississippi State Univ, Dept Entomol & Plant Pathol, Mississippi State, MS 39762 USA.
RP Wang, N (reprint author), Univ Florida, Ctr Citrus Res & Educ, Dept Microbiol & Cell Sci, IFAS, 700 Expt Stn Rd, Lake Alfred, FL 33850 USA.
EM nianwang@crec.ifas.ufl.edu
RI Andersen, Gary/G-2792-2015;
OI Andersen, Gary/0000-0002-1618-9827; DeAngelis,
Kristen/0000-0002-5585-4551
FU Florida Citrus Production Research Advisory Council
FX This work was supported by the Florida Citrus Production Research
Advisory Council.
NR 54
TC 58
Z9 69
U1 3
U2 25
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD MAR
PY 2009
VL 75
IS 6
BP 1566
EP 1574
DI 10.1128/AEM.02404-08
PG 9
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 415FY
UT WOS:000263920900012
PM 19151177
ER
PT J
AU Chau, J
Sowlati, T
Sokhansanj, S
Preto, F
Melin, S
Bi, X
AF Chau, J.
Sowlati, T.
Sokhansanj, S.
Preto, F.
Melin, S.
Bi, X.
TI Techno-economic analysis of wood biomass boilers for the greenhouse
industry
SO APPLIED ENERGY
LA English
DT Article
DE Cost analysis; Economic evaluation; Greenhouses; Wood pellets; Wood
residue; Wood biomass boiler
ID OPTIMAL-CONTROL STRATEGIES; CARBON-DIOXIDE ENRICHMENT; TOMATO CROPS
AB The objective of this study is to perform a techno-economic analysis on a typical wood pellet and wood residue boiler for generation of heat to an average-sized greenhouse in British Columbia. The variables analyzed included greenhouse size and structure, boiler efficiency, fuel types, and source of carbon dioxide (CO(2)) for crop fertilization. The net present value (NPV) show that installing a wood pellet or a wood residue boiler to provide 40% of the annual heat demand is more economical than using a natural gas boiler to provide all the heat at a discount rate of 10%. For an assumed lifespan of 25 years, a wood pellet boiler system could generate NPV of C$259,311 without electrostatic precipitator (ESP) and C$74,695 with ESP, respectively. While, installing a wood residue boiler with or without an ESP could provide NPV of C$919,922 or C$1,104,538, respectively. Using a wood biomass boiler could also eliminate over 3000 tonne CO(2) equivalents of greenhouse gases annually. Wood biomass combustion generates more particulate matters than natural gas combustion. However, an advanced emission control system could significantly reduce particulate matters emission from wood biomass combustion which would bring the particulate emission to a relatively similar level as for natural gas. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Chau, J.; Sowlati, T.] Univ British Columbia, Dept Wood Sci, Vancouver, BC V6T 1Z4, Canada.
[Sokhansanj, S.; Bi, X.] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada.
[Sokhansanj, S.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Preto, F.] Nat Resources Canada, Ottawa, ON, Canada.
[Melin, S.] Delta Res Corp, Delta, BC, Canada.
RP Sowlati, T (reprint author), Univ British Columbia, Dept Wood Sci, 2931-2424 Main Mall, Vancouver, BC V6T 1Z4, Canada.
EM taraneh.sowlati@ubc.ca
NR 54
TC 57
Z9 58
U1 1
U2 17
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0306-2619
J9 APPL ENERG
JI Appl. Energy
PD MAR
PY 2009
VL 86
IS 3
BP 364
EP 371
DI 10.1016/j.apenergy.2008.05.010
PG 8
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 391FQ
UT WOS:000262219600012
ER
PT J
AU Hwang, DJ
Hiromatsu, K
Hidai, H
Grigoropoulos, CP
AF Hwang, David J.
Hiromatsu, Kuniaki
Hidai, Hirofumi
Grigoropoulos, Costas P.
TI Self-guided glass drilling by femtosecond laser pulses
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID FUSED-SILICA; BREAKDOWN; ENERGY
AB Straight through-holes of high aspect ratio have been fabricated in glass by femtosecond laser pulses, utilizing unique characteristics of ultrafast lasers such as volumetric multi-photon absorption and nonlinear self-focusing. In this study, interestingly, the drilling process was initiated and progressed in a self-regulated manner, while the laser focus was fixed through the specimen at the neighborhood of the rear surface that was in contact with liquid during the entire drilling process. The deposition of laser energy along the nonlinearly extended focal range and the guided drilling along the pre-defined region are explained based on time-resolved optical transmission and emission measurements.
C1 [Hwang, David J.; Hiromatsu, Kuniaki; Hidai, Hirofumi; Grigoropoulos, Costas P.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Hiromatsu, Kuniaki] AGC ASAHI GLASS CO LTD, Res Ctr, Tsurumi Ku, Yokohama, Kanagawa, Japan.
[Hiromatsu, Kuniaki; Hidai, Hirofumi] Tokyo Inst Technol, Dept Mech Sci & Engn, Tokyo 1528552, Japan.
[Grigoropoulos, Costas P.] Lawrence Berkeley Natl Lab, EETD, Adv Energy Technol Dept, Berkeley, CA 94720 USA.
RP Grigoropoulos, CP (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
EM cgrigoro@me.berkeley.edu
RI Han, Kyuhee/B-6201-2009;
OI Hidai, Hirofumi/0000-0001-6440-5697
FU National Science Foundation [DMI-0556363]
FX Support by the National Science Foundation under grant DMI-0556363 is
gratefully acknowledged.
NR 10
TC 8
Z9 9
U1 0
U2 13
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD MAR
PY 2009
VL 94
IS 3
BP 555
EP 558
DI 10.1007/s00339-008-4973-5
PG 4
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 395DV
UT WOS:000262504200021
ER
PT J
AU Tuncer, E
Rondinone, AJ
Woodward, J
Sauers, I
James, DR
Ellis, AR
AF Tuncer, Enis
Rondinone, Adam J.
Woodward, Jonathan
Sauers, Isidor
James, D. Randy
Ellis, Alvin R.
TI Cobalt iron-oxide nanoparticle modified poly(methyl methacrylate)
nanodielectrics
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
ID DIELECTRIC-RELAXATION; ELECTRICAL-PROPERTIES; NANOCOMPOSITES; MIXTURES;
TIMES; STATISTICS; INTERFACES; INVERSION; BREAKDOWN; SURFACE
AB In this paper, we report the dielectric properties of composite systems (nanodielectrics) made of small amounts of mono dispersed magnetic nanoparticles embedded in a polymer matrix. It is observed from the transmission electron microscope images that the matrix polymeric material is confined in approximately 100 nm size cages between particle clusters. The particle clusters are composed of separated spherical particles which comprise unconnected networks in the matrix. The dielectric relaxation and breakdown characteristics of the matrix polymeric material are altered with the addition of nanometer size cobalt iron-oxide particles. The dielectric breakdown measurements performed at 77 K showed that these nanodielectrics are potentially useful as an electrical insulation material for cryogenic high voltage applications. Finally, structural and dielectric properties of nanocomposite dielectrics are discussed to present plausible reasons for the observed low effective dielectric permittivity values in the present and similar nanodielectric systems. It is concluded that polymeric nanoparticle composites would have low dielectric permittivity regardless of the permittivity of nanoparticles are when the particles are coordinated with a low dielectric permittivity surfactant.
C1 [Tuncer, Enis; Sauers, Isidor; James, D. Randy; Ellis, Alvin R.] Oak Ridge Natl Lab, Appl Superconduct Grp, Div Fus Energy, Oak Ridge, TN 37831 USA.
[Rondinone, Adam J.] Oak Ridge Natl Lab, Ctr Nanophase, Div Mat Sci, Oak Ridge, TN 37831 USA.
[Woodward, Jonathan] Oak Ridge Natl Lab, Nanomat Chem Grp, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Tuncer, E (reprint author), Oak Ridge Natl Lab, Appl Superconduct Grp, Div Fus Energy, Oak Ridge, TN 37831 USA.
EM tuncere@ornl.gov
RI Rondinone, Adam/F-6489-2013;
OI Rondinone, Adam/0000-0003-0020-4612; Tuncer, Enis/0000-0002-9324-4324
NR 54
TC 24
Z9 24
U1 0
U2 17
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0947-8396
J9 APPL PHYS A-MATER
JI Appl. Phys. A-Mater. Sci. Process.
PD MAR
PY 2009
VL 94
IS 4
BP 843
EP 852
DI 10.1007/s00339-008-4881-8
PG 10
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 403FY
UT WOS:000263069700020
ER
PT J
AU Cutler, PJ
Haaland, DM
Gemperline, PJ
AF Cutler, Patrick J.
Haaland, David M.
Gemperline, Paul J.
TI Systematic Method for the Kinetic Modeling of Temporally Resolved
Hyperspectral Microscope Images of Fluorescently Labeled Cells
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Hyperspectral confocal microscopy; Fluorescence imaging; Kinetic
modeling; Human embryonic kidney cells; Human A549 pulmonary type II
epithelial cells; Inhibitor kappa B kinase alpha; Mitochondrial
antiviral signaling protein; Separable least squares
ID SPECTROSCOPIC MEASUREMENTS; CURVE RESOLUTION; KEY SET; MOLECULE;
STATISTICS; BIOLOGY; PROTEIN; DYES; TIME
AB In this paper we report the application of a novel method for fitting kinetic models to temporally resolved hyperspectral images of fluorescently labeled cells to mathematically resolve pure-component spatial images, pure-component spectra, and pure-component reaction profiles. The method is demonstrated on one simulated image and two experimental cell images, including human embryonic kidney cells (HEK 293) and human A549 pulmonary type II epithelial cells. In both cell images, inhibitor kappa K kinase alpha (IKK alpha) and mitochondrial antiviral signaling protein (MAVS) were labeled with green and yellow fluorescent protein, respectively. Kinetic modeling was performed on the compressed images by using a separable least squares method. A combination of several first-order decays were needed to adequately model the photobleaching processes for each fluorophore observed in these images, consistent with the hypothesis that each fluorophore was found in several different environments within the cells. Numerous plausible mechanisms for kinetic modeling of the photobleaching processes in these images were tested and a method for selecting the most parsimonious and statistically sufficient model was used to prepare spatial maps of each fluorophore.
C1 [Cutler, Patrick J.; Gemperline, Paul J.] E Carolina Univ, Dept Chem, Greenville, NC 27858 USA.
[Haaland, David M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Gemperline, PJ (reprint author), E Carolina Univ, Dept Chem, Greenville, NC 27858 USA.
EM gemperlinep@ecu.edu
FU United States Department of Energy [DEAC04-94AL85000]; Sandia National
Laboratories'
FX The authors would like to thank Howland Jones for software and data
analysis support on this project and for preparing the simulated
hyperspectral image data. Jens Poschet is acknowledged for preparing the
fluorescently labeled A549 cells. Rachel Noek and Ryan Davis collected
the hyperspectral data of the fixed cells. Allen Brasier from the
University of Texas Medical Branch prepared the fluorescently labeled
HEK 293 cells. Sandia is a multiprogram laboratory operated by Sandia
Corporation, a Lockheed Martin Company, for the United States Department
of Energy under Contract DEAC04-94AL85000. Support is acknowledged from
Sandia National Laboratories' Laboratory Directed Research and
Development project titled Microscale Immune Studies Laboratory (MISL).
NR 31
TC 1
Z9 1
U1 0
U2 5
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 201B BROADWAY ST, FREDERICK, MD 21701 USA
SN 0003-7028
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAR
PY 2009
VL 63
IS 3
BP 261
EP 270
PG 10
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA 418IT
UT WOS:000264142600001
PM 19281641
ER
PT J
AU Haaland, DM
Jones, HDT
Van Benthem, MH
Sinclair, MB
Melgaard, DK
Stork, CL
Pedroso, MC
Liu, P
Brasier, AR
Andrews, NL
Lidke, DS
AF Haaland, David M.
Jones, Howland D. T.
Van Benthem, Mark H.
Sinclair, Michael B.
Melgaard, David K.
Stork, Christopher L.
Pedroso, Maria C.
Liu, Ping
Brasier, Allan R.
Andrews, Nicholas L.
Lidke, Diane S.
TI Hyperspectral Confocal Fluorescence Imaging: Exploring Alternative
Multivariate Curve Resolution Approaches
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Hyperspectral confocal microscope; Fluorescence imaging; Multivariate
curve resolution; MCR; Partially constrained alternating least squares;
ALS; Quantum dots; Autofluorescence; Corn endosperm
ID SPECTRAL IMAGES; PROTEIN THIOLS; MERCUROCHROME; TITRATIONS; ALGORITHM;
POWERFUL; SYSTEMS; CELLS
AB Hyperspectral confocal fluorescence microscopy, when combined with multivariate curve resolution (MCR), provides a powerful new tool for improved quantitative imaging of multi-fluorophore samples. Generally, fully non-negatively constrained models are used in the constrained alternating least squares MCR analyses of hyperspectral images since real emission components are expected to have non-negative pure emission spectra and concentrations. However, in this paper, we demonstrate four separate cases in which partially constrained models are preferred over the fully constrained MCR models. These partially constrained MCR models can sometimes be preferred when system artifacts are present in the data or where small perturbations of the major emission components are present due to environmental effects or small geometric changes in the fluorescing species. Here we demonstrate that in the cases of hyperspectral images obtained from multicomponent spherical beads, autofluorescence from fixed lung epithelial cells, fluorescence of quantum dots in aqueous solutions, and images of mercurochrome-stained endosperm portions of a wild-type corn seed, these alternative, partially constrained MCR analyses provide improved interpretability of the MCR solutions. Often the system artifacts or environmental effects are more readily described as first and/or second derivatives of the main emission components in these alternative MCR solutions since they indicate spectral shifts and/or spectral broadening or narrowing of the emission hands, respectively. Thus, this paper serves to demonstrate the need to test alternative partially constrained models when analyzing hyperspectral images with MCR methods.
C1 [Haaland, David M.; Jones, Howland D. T.; Van Benthem, Mark H.; Sinclair, Michael B.; Melgaard, David K.; Stork, Christopher L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Pedroso, Maria C.] Monsanto Co, St Louis, MO 63167 USA.
[Liu, Ping; Brasier, Allan R.] Univ Texas Med Branch, Galveston, TX 77555 USA.
[Andrews, Nicholas L.; Lidke, Diane S.] Univ New Mexico, Dept Pathol, Canc Res & Treatment Ctr, Albuquerque, NM 87131 USA.
RP Haaland, DM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM dmhaala@sandia.gov
FU United States Department of Energy [DE-AC04-94AL85000]; Sandia National
Laboratories'
FX We would like to acknowledge Michael R. Keenan for his part in
generating the algorithms and software to perform the MCR analysis of
the hyperspectral data. Rachel Noek is acknowledged for collecting the
A459 cell image data. Sandia is at multi-program laboratory operated by
Sandia Corporation, a Lockheed Martin Company, for the United States
Department of Energy Under Contract DE-AC04-94AL85000. Support is
acknowledged from Sandia National Laboratories' Laboratory Directed
Research and Development project titled Microscale Immune Studies
Laboratory (MISL).
NR 29
TC 33
Z9 33
U1 1
U2 16
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 201B BROADWAY ST, FREDERICK, MD 21701 USA
SN 0003-7028
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAR
PY 2009
VL 63
IS 3
BP 271
EP 279
PG 9
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA 418IT
UT WOS:000264142600002
PM 19281642
ER
PT J
AU Kim, SS
Menegazzo, N
Young, C
Chan, J
Carter, C
Mizaikoff, B
AF Kim, Seong-Soo
Menegazzo, Nicola
Young, Christina
Chan, James
Carter, Chance
Mizaikoff, Boris
TI Mid-Infrared Trace Gas Analysis with Single-Pass Fourier Transform
Infrared Hollow Waveguide Gas Sensors
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Mid-infrared sensors; Fourier transform infrared spectroscopy; FT-IR
spectroscopy; Hollow waveguides; Trace gas sensing; Methane; Carbon
dioxide
ID QUANTUM-CASCADE LASERS; BENDING LOSSES; TRANSMISSION; METHANE; BREATH;
LIGHT; WAVEGUIDES; HYDROGEN; VAPORS; PATHS
AB A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000-500 cm(-1), enabling continuous detection of small volume gas-phase analytes such as CH(4), CO(2), C(2)H(5)Cl, or their mixtures at trace levels. Ag/Ag-halide hollow core optical fibers simultaneously serve as an optical waveguide for broad-band mid-infrared radiation and as a miniaturized absorption gas cell. Specifically, carbon dioxide, methane, and ethyl chloride as well as binary mixtures in a carrier gas were analyzed during exponential dilution experiments. In the studies reported here, the integration of an optical gas sensor with FT-IR spectroscopy provides excellent detection limits for small gas volumes (similar to 1.5 mL,) of individual analytes at a few tens of parts per billion (ppb, vol/vol) for carbon dioxide and a few hundreds of ppb (vol/vol) for methane. Furthermore, the broad-band nature of the radiation source and of the hollow core optical waveguide provides the capability of multi-constituent analysis in mixtures.
C1 [Mizaikoff, Boris] Univ Ulm, Inst Analyt & Bioanalyt Chem, D-89073 Ulm, Germany.
[Chan, James; Carter, Chance] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Kim, Seong-Soo; Menegazzo, Nicola; Young, Christina] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
RP Mizaikoff, B (reprint author), Univ Ulm, Inst Analyt & Bioanalyt Chem, D-89073 Ulm, Germany.
EM boris.mizaikoff@uni-ulm.de
RI Mizaikoff, Boris/G-9959-2013
OI Mizaikoff, Boris/0000-0002-5583-7962
FU U.S. Department of Energy by the University of California; Lawrence
Livermore National Laboratory [W-7405-Eng-48]; Laboratory Directed
Research and Development Program at LLNL [B565491]
FX This work was performed under the auspices of the U.S. Department of
Energy by the University of California. Lawrence Livermore National
Laboratory under contract No. W-7405-Eng-48. This project was funded by
the Laboratory Directed Research and Development Program at LLNL under
sub-contract No. B565491. The authors appreciate fruitful technical
discussion with Dr. Jean-Francois Masson at Georgia Tech, who is now
with the University of Montreal.
NR 32
TC 19
Z9 21
U1 2
U2 15
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 201B BROADWAY ST, FREDERICK, MD 21701 USA
SN 0003-7028
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAR
PY 2009
VL 63
IS 3
BP 331
EP 337
PG 7
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA 418IT
UT WOS:000264142600009
PM 19281649
ER
PT J
AU Lewis, LJ
Perez, D
AF Lewis, Laurent J.
Perez, Danny
TI Laser ablation with short and ultrashort laser pulses: Basic mechanisms
from molecular-dynamics simulations
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE Laser ablation; Molecular-dynamics simulations; Phase explosion;
Fragmentation; Spallation
ID PHASE EXPLOSION; SOLIDS; NANOPARTICLES; SILICON; NICKEL
AB Laser ablation is a technology widely used in many applications. Understanding in detail the mechanisms that lead to ablation remains a formidable challenge because of the complexity of the processes taking place, the variety of species involved, and the range of length and time scales covered. Atomic-level experimental information is difficult to obtain and must be augmented by theory. In this article, we briefly review the progresses that we have accomplished using a simple two-dimensional molecular-dynamics model, insisting on the importance of considering the thermodynamics of the evolution of the systems in order to understand ablation. Through the identification of the thermodynamic pathways followed by the material after irradiation, our model has provided significant insights on the physical mechanisms leading to ablation. It has been demonstrated in particular that these depend strongly on the influence, and are actually determined by the effective amount of energy received within different regions of the target. Further, internal or external factors, such as inertial confinement, play a key role in determining the route to ablation - and thus the types and sizes of particles ejected - by constraining the thermodynamical evolution of the system. We have established that, for ultrashort pulses in strongly absorbing materials, ablation proceeds by either spallation, phase explosion or fragmentation; the latter, we demonstrate, is the most important mechanism. For longer pulses, ablation may also proceed by trivial fragmentation. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Lewis, Laurent J.] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada.
[Lewis, Laurent J.] Univ Montreal, RQMP, Montreal, PQ H3C 3J7, Canada.
[Perez, Danny] Los Alamos Natl Lab, Theoret Div T12, Los Alamos, NM 87545 USA.
RP Lewis, LJ (reprint author), Univ Montreal, Dept Phys, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada.
EM Laurent.Lewis@UMontreal.CA; danny_perez@lanl.gov
RI Lewis, Laurent/E-5546-2013
FU Natural Sciences and Engineering Research Council of Canada (NSERC);
Fonds Quebecois de la Recherche sur la Nature et les Technologies
(FQRNT); U.S. Department of Energy [DE-AC52-O6NA25396]; Director's
Funding at Los Alamos National Laboratory
FX We are grateful to the many people who have contributed to our research
efforts in this area over the years, in particular Patrick Lorazo and
Michel Meunier; thanks also go to Delphine Bouilly, Laurent Karim Be '
land, Delphine Deryng, Vincent Mijoule, Danahe ' Paquin- Ricard, and E '
lisabeth Renaud. It is a pleasure also to acknowledge numerous
discussions and exchanges with several researchers in the. eld,
including Salvatore Amoruso, Riccardo Bruzzese, Savas Georgiou, Klaus
Sokolowski-Tinten, and Leonid V. Zhigilei. This work has been supported
by grants from the Natural Sciences and Engineering Research Council of
Canada (NSERC) and the Fonds Quebecois de la Recherche sur la Nature et
les Technologies (FQRNT). We are immensely grateful to the Reseau
Quebecois de Calcul de Haute Performance (RQCHP) for generous
allocations of computer resources. D.P. gratefully acknowledges
Director's Funding 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 U.S. Department of
Energy under contract DE-AC52-O6NA25396.
NR 33
TC 31
Z9 31
U1 3
U2 19
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-4332
J9 APPL SURF SCI
JI Appl. Surf. Sci.
PD MAR 1
PY 2009
VL 255
IS 10
BP 5101
EP 5106
DI 10.1016/j.apsusc.2008.07.116
PG 6
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 414LK
UT WOS:000263865000001
ER
PT J
AU Santagata, A
Albano, G
Spera, D
Teghil, R
Villani, P
Parisi, GP
De Bonis, A
Sordelet, DJ
AF Santagata, A.
Albano, G.
Spera, D.
Teghil, R.
Villani, P.
Parisi, G. P.
De Bonis, A.
Sordelet, D. J.
TI Emission spectra investigation of fs induced NPs probed by the ns laser
pulse of a fs/ns DP-LIBS orthogonal configuration
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE Ns laser probe; Dual-pulse LIBS; Laser induced emission spectroscopy;
Fs-pulsed laser ablation; Nanoparticles detection; Quasicrystal
ID NANOPARTICLE GENERATION; ABLATION; DEPOSITION; VACUUM; METALS
AB A dual-pulse fs/ns laser induced breakdown spectroscopy configuration, where an initial 250 fs ablating pulsed laser followed by a delayed ns laser beam placed at a fixed distance, orthogonally with the expanding plasma plume, has been used in air on a Al65Cu23Fe12 quasicrystal. The obtained emission data were acquired with a set-up arrangement providing space detections, with a resolution up to 15 mm, of the ns laser pulse generated signals. Assuming the fulfillment of local thermodynamic equilibrium conditions, the role played by the time lag between the two laser beams on the induced plasma excitation temperatures and electronic densities, as well as a space resolved process survey, has been followed. The spatial and time resolved spectra show, almost, steady values of the determined elementary plasma features with the development of nanoparticles occurring during the fs laser pulsed ablation process. The ns laser probe of the dual-pulse LIBS configuration here presented confirms that the nanoparticles induced can be largely widespread in both space and time whose compositions, overall, could retain the starting target stoichiometry. It is shown that these nanoparticles formation can actually take place at different times following the initial ultra-short laser beam incidence and that, especially at long interpulse delays (> 100 mu s), modest compositional changes can be observed. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Santagata, A.; Albano, G.; Spera, D.; Villani, P.; Parisi, G. P.] CNR IMIP, Unita Operat Potenza, Zona Ind Tito Scalo, I-85050 Tito, PZ, Italy.
[Teghil, R.; De Bonis, A.] Univ Basilicata, Dipartimento Chim, I-85100 Potenza, Italy.
[Sordelet, D. J.] Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA USA.
RP Santagata, A (reprint author), CNR IMIP, Unita Operat Potenza, Zona Ind Tito Scalo, Via S Loja,Zona Ind, I-85050 Tito, PZ, Italy.
EM antonio.santagata@cnr.it
OI TEGHIL, ROBERTO/0000-0002-8528-8669; De Bonis,
Angela/0000-0002-1177-2896; Santagata, Antonio/0000-0002-1409-3135
FU Patto con i Giovani GEL
FX The authors would like to express their meaningful gratefulness to the
Regione Basilicata-Dipartimento Formazione Cultura e Sport for
supporting part of this work by the "Patto con i Giovani GEL'' research
grants.
NR 22
TC 6
Z9 6
U1 1
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-4332
J9 APPL SURF SCI
JI Appl. Surf. Sci.
PD MAR 1
PY 2009
VL 255
IS 10
BP 5159
EP 5162
DI 10.1016/j.apsusc.2008.08.075
PG 4
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 414LK
UT WOS:000263865000012
ER
PT J
AU Hazen, TC
Chakraborty, R
Fleming, J
Gregory, IR
Bowman, JP
Jimenez, L
Zhang, D
Pfiffner, SM
Brockman, FJ
Sayler, GS
AF Hazen, Terry C.
Chakraborty, Romy
Fleming, James M.
Gregory, Ingrid R.
Bowman, John P.
Jimenez, Luis
Zhang, Dai
Pfiffner, Susan M.
Brockman, Fred J.
Sayler, Gary S.
TI Use of gene probes to assess the impact and effectiveness of aerobic in
situ bioremediation of TCE
SO ARCHIVES OF MICROBIOLOGY
LA English
DT Article
DE Trichloroethylene; Bioremediation; Methanotrophs
ID SOLUBLE METHANE MONOOXYGENASE; METHYLOSINUS-TRICHOSPORIUM;
TRICHLOROETHYLENE DEGRADATION; METHANOTROPHS; CLUSTER; SOILS; RNA
AB Gene probe hybridization was used to determine distribution and expression of co-metabolic genes at a contaminated site as it underwent in situ methanotrophic bioremediation of trichloroethylene (TCE). The bioremediation strategies tested included a series of air, air:methane, and air:methane:nutrient pulses of the test plot using horizontal injection wells. During the test period, the levels of TCE reduced drastically in almost all test samples. Sediment core samples (n = 367) taken from 0 m (surface)-43 m depth were probed for gene coding for methanotrophic soluble methane monooxygenase (sMMO) and heterotrophic toluene dioxygenase (TOD), which are known to co-metabolize TCE. The same sediment samples were also probed for genes coding for methanol dehydrogenase (MDH) (catalyzing the oxidation of methanol to formaldehyde) to assess specifically changes in methylotrophic bacterial populations in the site. Gene hybridization results showed that the frequency of detection of sMMO genes were stimulated approximately 250% following 1% methane:air (v/v) injection. Subsequent injection of 4% methane:air (v/v) resulted in an 85% decline probably due to nutrient limitations, since addition of nutrients (gaseous nitrogen and phosphorus) thereafter caused an increase in the frequency of detection of sMMO genes. Detection of TOD genes declined during the process, and eventually they were non-detectable by the final treatment, suggesting that methanotrophs displaced the TOD gene containing heterotrophs. Active transcription of sMMO and TOD was evidenced by hybridization to mRNA. These analyses combined with results showing the concomitant decline in TCE concentrations, increases in chloride concentration and increases in methanotroph viable counts, provide multiple lines of evidence that TCE remediation was caused specifically by methanotrophs. Our results suggest that sMMO genes are responsible for most, if not all, of the observed biodegradation of TCE. This study demonstrates that the use of nucleic acid analytical methods provided a gene specific assessment of the effects of in situ treatment technologies.
C1 [Fleming, James M.; Gregory, Ingrid R.; Bowman, John P.; Jimenez, Luis; Zhang, Dai; Sayler, Gary S.] Univ Tennessee, Ctr Environm Biotechnol, Knoxville, TN 37932 USA.
[Sayler, Gary S.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37932 USA.
[Pfiffner, Susan M.] Univ Tennessee, Inst Appl Microbiol, Knoxville, TN 37932 USA.
[Brockman, Fred J.] Pacific NW Natl Lab, Environm Microbiol Grp, Richland, WA 99352 USA.
[Hazen, Terry C.; Chakraborty, Romy] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, Berkeley, CA 94720 USA.
RP Hazen, TC (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, MS 70A-3317,1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM tchazen@1b1.gov
RI Chakraborty, Romy/D-9230-2015; Bowman, John/C-2414-2014; Hazen,
Terry/C-1076-2012
OI Chakraborty, Romy/0000-0001-9326-554X; Bowman, John/0000-0002-4528-9333;
Hazen, Terry/0000-0002-2536-9993
FU U. S. Department of Energy [DE-AC02-05CH11231, DE-AC06-76RLO-1830];
Environics Directorate, Armstrong Laboratories; Tyndall AFB; Panama
City; FL; U. S. Air Force Office of Scientific Grants
FX This work was supported by the U. S. Department of Energy under Contract
Nos. DE-AC02-05CH11231 and DE-AC06-76RLO-1830, and contracts from
Westinghouse Savannah River Co. to the University of Tennessee. John P.
Bowman was supported by the Environics Directorate, Armstrong
Laboratories, Tyndall AFB, Panama City, FL, U. S. Air Force Office of
Scientific Grants. We would like to thank Bruce Applegate for valuable
technical assistance.
NR 31
TC 17
Z9 20
U1 0
U2 11
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0302-8933
J9 ARCH MICROBIOL
JI Arch. Microbiol.
PD MAR
PY 2009
VL 191
IS 3
BP 221
EP 232
DI 10.1007/s00203-008-0445-8
PG 12
WC Microbiology
SC Microbiology
GA 409NJ
UT WOS:000263512100004
PM 19034430
ER
PT J
AU Roth, K
Dieckmann, J
Brodrick, J
AF Roth, Kurt
Dieckmann, John
Brodrick, James
TI Using Off-Peak Precooling
SO ASHRAE JOURNAL
LA English
DT Editorial Material
ID BUILDING THERMAL MASS; STORAGE
C1 [Roth, Kurt] MIT, Fraunhofer Ctr Sustainable Energy Systms, Cambridge, MA 02139 USA.
[Dieckmann, John] TIAX LLC, Cambridge, MA USA.
[Brodrick, James] US DOE, Bldg Technol Program, Washington, DC USA.
RP Roth, K (reprint author), MIT, Fraunhofer Ctr Sustainable Energy Systms, Cambridge, MA 02139 USA.
NR 17
TC 3
Z9 3
U1 0
U2 1
PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
SN 0001-2491
J9 ASHRAE J
JI ASHRAE J.
PD MAR
PY 2009
VL 51
IS 3
BP 80
EP 83
PG 4
WC Thermodynamics; Construction & Building Technology; Engineering,
Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 418BO
UT WOS:000264122400017
ER
PT J
AU Rossetti, A
Mantovani, F
Junor, W
Saikia, DJ
Salter, C
AF Rossetti, A.
Mantovani, F.
Junor, W.
Saikia, D. J.
Salter, C.
TI An "incomplete sample" of CSSs observed with the VLA
SO ASTRONOMISCHE NACHRICHTEN
LA English
DT Article; Proceedings Paper
CT 4th Workshop on Compact Steep Spectrum and Gigahertz-Peaked Spectrum
Radio Sources
CY MAY 26-29, 2008
CL Riccione, ITALY
SP Natl Inst Astrophys, Univ Bologna
DE galaxies: general; ISM: magnetic fields; polarization; radio continuum:
galaxies
ID RADIO-SOURCES; DEPOLARIZATION
AB A sample of 26 Compact Steep Spectrum sources selected from the original list drawn up by Dallacasa & Stanghellini (1990) have been observed with the VLA A-array at X, U, and K bands. Images have been produced in both total intensity and polarisation at four widely-spaced frequencies with the aim of deriving linear polarisation parameters. We present preliminary polarisation results on source fractional polarisation and electric vector angle at X and U bands. These new information will be completed with available archive data in order to perform a polarimetric analysis of a complete CSS sample. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
C1 [Rossetti, A.; Mantovani, F.] Ist Nazl Astrofis, Ist Radioastron, I-40129 Bologna, Italy.
[Junor, W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Saikia, D. J.] Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India.
[Salter, C.] Arecibo Observ, Arecibo, PR 00612 USA.
RP Rossetti, A (reprint author), Ist Nazl Astrofis, Ist Radioastron, Via P Gobetti 101, I-40129 Bologna, Italy.
EM rossetti@ira.inaf.it
NR 6
TC 0
Z9 0
U1 0
U2 1
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0004-6337
J9 ASTRON NACHR
JI Astro. Nachr.
PD MAR
PY 2009
VL 330
IS 2-3
BP 221
EP 222
DI 10.1002/asna.200811161
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 420RJ
UT WOS:000264306600026
ER
PT J
AU Schroedter, M
Krennrich, F
LeBohec, S
Falcone, A
Fegan, SJ
Horan, D
Kildea, J
Smith, AW
Toner, J
Weekes, TC
AF Schroedter, M.
Krennrich, F.
LeBohec, S.
Falcone, A.
Fegan, S. J.
Horan, D.
Kildea, J.
Smith, A. W.
Toner, J.
Weekes, T. C.
TI Search for primordial black holes with SGARFACE
SO ASTROPARTICLE PHYSICS
LA English
DT Article
DE Primordial black holes: general; Gamma-rays: bursts; Techniques:
air-Cherenkov
ID GAMMA-RAY BURSTS; GLUON-JET EMISSION; HIGH-ENERGY; EARLY UNIVERSE;
IMAGING TECHNIQUE; GALACTIC HALO; COSMIC-RAYS; UPPER LIMIT; QUARK-JET;
EXPLOSIONS
AB The short gamma-ray front air-cherenkov experiment (SGARFACE) uses the Whipple 10 m telescope to search for bursts of gamma-rays. SGARFACE is sensitive to bursts with duration from a few ns to similar to 20 mu s and with gamma-ray energy above 100 MeV. SGARFACE began operating in March 2003 and has collected 2.2 million events during an exposure time of 2267 h. A search for bursts of gamma-rays from explosions of primordial black holes (PBH) was carried out. A Hagedorn-type PBH explosion is predicted to be visible within 60 pc of Earth. Background events were caused by cosmic rays and by atmospheric phenomena and their rejection was accomplished to a large extent using the time-resolved images. No unambiguous detection of bursts of gamma-rays could be made as the remaining background events mimic the expected shape and time-development of bursts. Upper limits on the PBH explosion rate were. derived from the SGARFACE data and are compared to previous and future experiments. We note that a future array of large wide-field air-Cherenkov telescopes equipped with a SGARFACE-like trigger would be able to operate background-free with a 20-30 times higher sensitivity for PBH explosions. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Schroedter, M.; Krennrich, F.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[LeBohec, S.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
[Falcone, A.] Penn State Univ, Davey Lab 525, University Pk, PA 16802 USA.
[Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Smith, A. W.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Toner, J.] Natl Univ Ireland, Sch Phys, Galway, Ireland.
[Kildea, J.; Weekes, T. C.] Harvard Smithsonian Ctr Astrophys, Whipple Observ, Amado, AZ 85645 USA.
RP Schroedter, M (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
EM schroedt@iastate.edu
FU Iowa State University
FX We thank the VERITAS Collaboration and the staff at the Whipple
Observatory for operating and maintaining the 10 m project. We thank Roy
McKay, Harold Skank, and Gary Sleedge at ISU for their help in the
electronics design and testing. We would also like to thank Jianwei Qiu
at ISU for discussing with us the physics of PBH evaporation and the
unknown referee for valuable comments and criticism. FK acknowledges
support for the SGARFACE project by the Department of Energy,
High-Energy Physics Division, through the Outstanding junior
Investigator program and generous financial support by Iowa State
University.
NR 76
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-6505
EI 1873-2852
J9 ASTROPART PHYS
JI Astropart Phys.
PD MAR
PY 2009
VL 31
IS 2
BP 102
EP 115
DI 10.1016/j.astropartphys.2008.12.002
PG 14
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 414HO
UT WOS:000263854700005
ER
PT J
AU Norman, EB
Browne, E
Shugart, HA
Joshi, TH
Firestone, RB
AF Norman, Eric B.
Browne, Edgardo
Shugart, Howard A.
Joshi, Tenzing H.
Firestone, Richard B.
TI Evidence against correlations between nuclear decay rates and Earth-Sun
distance
SO ASTROPARTICLE PHYSICS
LA English
DT Article
DE Radioactivity; Alpha decay; Beta decay; Gamma-ray detectors
ID HALF-LIFE
AB We have reexamined Our previously Published data to search for evidence of correlations between the rates for the alpha, beta-minus, beta-plus, and electron capture decays of (22)Na, (44)Ti, (108)Ag(m), (121)Sn(m), (133)Ba, and (241)Am and the Earth-Sun distance. We find no evidence for such correlations and set limits on the possible amplitudes of such correlations substantially smaller than those observed in previous experiments. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Norman, Eric B.; Joshi, Tenzing H.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Norman, Eric B.] Lawrence Livermore Natl Lab, Div N, Livermore, CA 94551 USA.
[Norman, Eric B.; Browne, Edgardo; Firestone, Richard B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Shugart, Howard A.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Norman, EB (reprint author), Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
EM ebnorman@lbl.gov
OI Firestone, Richard/0000-0003-3833-5546
FU US Department of Homeland Security; US Department of Energy
[AC52-07NA27344, DE-AC02-05CH11231]
FX This work was supported in part by the US Department of Homeland
Security, and by the US Department of Energy under contract numbers
DE-AC52-07NA27344 at LLNL and DE-AC02-05CH11231 at LBNL.
NR 8
TC 36
Z9 36
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-6505
J9 ASTROPART PHYS
JI Astropart Phys.
PD MAR
PY 2009
VL 31
IS 2
BP 135
EP 137
DI 10.1016/j.astropartphys.2008.12.004
PG 3
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 414HO
UT WOS:000263854700008
ER
PT J
AU Hoard, DW
Kafka, S
Wachter, S
Howell, SB
Brinkworth, CS
Ciardi, DR
Szkody, P
Belle, K
Froning, C
van Belle, G
AF Hoard, D. W.
Kafka, Stella
Wachter, Stefanie
Howell, Steve B.
Brinkworth, Carolyn S.
Ciardi, David R.
Szkody, Paula
Belle, Kunegunda
Froning, Cynthia
van Belle, Gerard
TI OBSERVATIONS OF V592 CASSIOPEIAE WITH THE SPITZER SPACE TELESCOPE-DUST
IN THE MID-INFRARED
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE accretion, accretion disks; novae, cataclysmic variables; stars:
individual (V592 Cas)
ID MAGNETIC CATACLYSMIC VARIABLES; X-RAY BINARIES; CIRCUMBINARY DISKS;
ACCRETION DISKS; WHITE-DWARF; PERIOD GAP; INTERSTELLAR EXTINCTION; MU-M;
STARS; MASS
AB We present the ultraviolet, optical, infrared spectral energy distribution of the low inclination novalike cataclysmic variable (CV) V592 Cassiopeiae, including new mid-infrared observations from 3.5 to 24 mu m obtained with the Spitzer Space Telescope. At wavelengths shortward of 8 mu m, the spectral energy distribution of V592 Cas is dominated by the steady state accretion disk, but there is flux density in excess of the summed stellar components and accretion disk at longer wavelengths. Reproducing the observed spectral energy distribution from ultraviolet to mid-infrared wavelengths can be accomplished by including a circumbinary disk composed of cool dust, with a maximum inner edge temperature of approximate to 500 K. The total mass of circumbinary dust in V592 Cas (similar to 10(21) g) is similar to that found from recent studies of infrared excess in magnetic CVs, and is too small to have a significant effect on the long-term secular evolution of the cataclysmic variable. The existence of circumbinary dust in V592 Cas is possibly linked to the presence of a wind outflow in this system, which can provide the necessary raw materials to replenish the circumbinary disk on relatively short timescales, and/or could be a remnant from the common envelope phase early in the formation history of the system.
C1 [Hoard, D. W.; Kafka, Stella; Wachter, Stefanie; Brinkworth, Carolyn S.] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA.
[Howell, Steve B.] Natl Opt Astron Observ, Tucson, AZ 85719 USA.
[Ciardi, David R.] CALTECH, Michelson Sci Ctr, Pasadena, CA 91125 USA.
[Szkody, Paula] Univ Washington, Dept Astron, Seattle, WA 98195 USA.
Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Froning, Cynthia] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA.
[van Belle, Gerard] European So Observ, D-85748 Garching, Germany.
RP Hoard, DW (reprint author), CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA.
OI Hoard, Donald W./0000-0002-6800-6519; Ciardi, David/0000-0002-5741-3047
FU National Aeronautics and Space Administration (NASA); NSF
FX This work is based in part on observations made with the Spitzer Space
Telescope, which is operated by the Jet Propulsion Laboratory,
California Institute of Technology, under a contract with the National
Aeronautics and Space Administration (NASA). Support for this work was
provided by NASA. This work makes use of data products from the Two
Micron All Sky Survey, which is a joint project of the University of
Massachusetts and the Infrared Processing and Analysis Center/Caltech,
funded by NASA and the NSF. This research has made use of the SIMBAD
database, operated at CDS, Strasbourg, France. We acknowledge with
thanks the variable star observations from the AAVSO International
Database contributed by observers worldwide and used in this research.
NR 63
TC 12
Z9 12
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 1
PY 2009
VL 693
IS 1
BP 236
EP 249
DI 10.1088/0004-637X/693/1/236
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 414ZE
UT WOS:000263903300018
ER
PT J
AU Ruiter, AJ
Belczynski, K
Benacquista, M
Holley-Bockelmann, K
AF Ruiter, Ashley J.
Belczynski, Krzysztof
Benacquista, Matthew
Holley-Bockelmann, Kelly
TI THE CONTRIBUTION OF HALO WHITE DWARF BINARIES TO THE LASER
INTERFEROMETER SPACE ANTENNA SIGNAL
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE binaries: close; Galaxy: halo; gravitational waves; white dwarfs
ID GALACTIC HALO; MILKY-WAY; GRAVITATIONAL-RADIATION; MAGELLANIC CLOUDS;
LISA SOURCES; STARS; DISK; EVOLUTION; GALAXY; POPULATION
AB Galactic double white dwarfs were postulated as a source of confusion limited noise for the Laser Interferometer Space Antenna (LISA), the future space-based gravitational wave observatory. Until very recently, the Galactic population consisted of a relatively well-studied disk population, a somewhat studied smaller bulge population and a mostly unknown, but potentially large halo population. It has been argued that the halo population may produce a signal that is much stronger (factor of similar to 5 in spectral amplitude) than the disk population. However, this surprising result was not based on an actual calculation of a halo white dwarf population, but was derived on (1) the assumption that one can extrapolate the halo population properties from those of the disk population and (2) the postulated (unrealistically) high number of white dwarfs in the halo. We perform the first calculation of a halo white dwarf population using population synthesis models. Our comparison with the signal arising from double white dwarfs in the Galactic disk+bulge clearly shows that it is impossible for the double white dwarf halo signal to exceed that of the rest of the Galaxy. Using microlensing results to give an upper limit on the content of white dwarfs in the halo (similar to 30% baryonic mass in white dwarfs), our predicted halo signal is a factor of 10 lower than the disk+bulge signal. Even in the implausible case, where all of the baryonic halo mass is found in white dwarfs, the halo signal does not become comparable to that of the disk+bulge, and thus would still have a negligible effect on the detection of other LISA sources.
C1 [Ruiter, Ashley J.] New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA.
[Ruiter, Ashley J.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Belczynski, Krzysztof] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Belczynski, Krzysztof] Univ Zielona Gora, J Kepler Inst Astron, Zielona Gora, Poland.
[Benacquista, Matthew] Univ Texas Brownsville, Ctr Gravitat Wave Astron, Brownsville, TX 78520 USA.
[Holley-Bockelmann, Kelly] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
RP Ruiter, AJ (reprint author), New Mexico State Univ, Dept Astron, 1320 Frenger Mall, Las Cruces, NM 88003 USA.
EM aruiter@nmsu.edu; kbelczyn@nms.edu; benacquista@phys.utb.edu;
k.holley@vanderbilt.edu
FU NASA [NNG94GD52G]; Center for Gravitational Wave Astronomy [NAG5-13396]
FX A.J.R. is thankful to S. Torres for informative discussion. M. J. B.
acknowledges the support of NASA through grant NNG94GD52G and the Center
for Gravitational Wave Astronomy (NAG5-13396). We also thank S. Larson
for LISA sensitivity curve dNASAata, and G. Nelemans for the use of
Nelemans et al. ( 2004) LISA amplitude data and helpful discussion. The
StarTrack simulations were run at the Nicolaus Copernicus Astronomical
Center and the Advanced Center for Computation, Research and Education.
NR 46
TC 10
Z9 10
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 1
PY 2009
VL 693
IS 1
BP 383
EP 387
DI 10.1088/0004-637X/693/1/383
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 414ZE
UT WOS:000263903300032
ER
PT J
AU Mueller, M
Schwartz, DA
AF Mueller, M.
Schwartz, D. A.
TI CONSTRAINTS ON THE LOW-ENERGY CUTOFF IN THE ELECTRON DISTRIBUTION OF THE
PKS 0637-752 JET
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: jets; quasars: individual (pks); X-rays: galaxies
ID X-RAY JET; ACTIVE GALACTIC NUCLEI; HUBBLE-SPACE-TELESCOPE; EXTENDED
RADIO JETS; SYNCHROTRON RADIATION; COMPTON-SCATTERING; CHANDRA
DISCOVERY; INVERSE COMPTON; PKS-0637-752; SPECTRUM
AB We reanalyze the Chandra ACIS spectrum of the kpc-scale jet in PKS 0637-752 to investigate the possible low-energy cutoff in the relativistic electron spectrum producing the nonthermal radiation in the scenario of inverse Compton (IC) emission off the cosmic microwave background. This was among the first objects targeted by the Chandra Observatory and gives a unique opportunity to study the low-energy X-ray emission free of detector contamination. As previously reported in the literature, the spectrum can be fit by a power law, with the slope predicted by the radio spectrum, modified by low energy absorption through the Galaxy as determined from the spectrum of the quasar core and by HI 21 cm observations. We obtain a marginally better fit with a model of IC emission produced by an electron population that exhibits a cutoff at gamma(min) delta(10) between about 50 and 80 ( assuming Gamma = delta). This range for gamma(min) is higher than has previously been assumed in broadband spectral fits to the jet emission. The observed optical flux can be used to place a lower limit on gamma(min); the constraint is not very strong, but does suggest that gamma(min) must be higher than 1 to avoid overproducing the optical emission. We investigate the effect of uncertainties in the column density for galactic absorption as well as the calibration of Chandra for these early observations. Finally, we discuss the implication of these limits on the jet luminosity in this source.
C1 [Mueller, M.] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA.
[Mueller, M.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Schwartz, D. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Mueller, M (reprint author), Stanford Linear Accelerator Ctr, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.
EM mmueller@slac.stanford.edu; das@head.cfa.harvard.edu
FU NASA [NAS8-39073]; CXC [GO3-4120X]; Department of Energy
[DE-AC02-76SF00515]
FX This research was supported in part by NASA Contract NAS8-39073 to the
Chandra X-ray Center and CXC grant GO3-4120X to SAO, as well as by the
Department of Energy Contract DE-AC02-76SF00515 to the Stanford Linear
Accelerator Center. The data reduction made use of the Chandra
Interactive Analysis of Observations tools
(http://cxc.harvard.edu/ciao), version 3.3, CALDB version 3.2.4.
Spectral fits were obtained in xspec (Arnaud 1996). We wish to thank the
anonymous referee for many helpful comments, and Mark Bautz and
Catherine Grant for assistance in understanding the low-energy response
of Chandra. Further thanks to Greg Madejski and Lukasz Stawarz for
fruitful discussions at all stages of this work.
NR 32
TC 2
Z9 2
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD MAR 1
PY 2009
VL 693
IS 1
BP 648
EP 655
DI 10.1088/0004-637X/693/1/648
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 414ZE
UT WOS:000263903300053
ER
PT J
AU Sakamoto, T
Sato, G
Barbier, L
Barthelmy, SD
Cummings, JR
Fenimore, EE
Gehrels, N
Hullinger, D
Krimm, HA
Lamb, DQ
Markwardt, CB
Palmer, DM
Parsons, AM
Stamatikos, M
Tueller, J
Ukwatta, TN
AF Sakamoto, T.
Sato, G.
Barbier, L.
Barthelmy, S. D.
Cummings, J. R.
Fenimore, E. E.
Gehrels, N.
Hullinger, D.
Krimm, H. A.
Lamb, D. Q.
Markwardt, C. B.
Palmer, D. M.
Parsons, A. M.
Stamatikos, M.
Tueller, J.
Ukwatta, T. N.
TI E-peak ESTIMATOR FOR GAMMA-RAY BURSTS OBSERVED BY THE Swift BURST ALERT
TELESCOPE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: bursts
ID INTRINSIC SPECTRA; FLASHES; ENERGY; CATALOG; MODEL; ENERGETICS; MISSION;
HETE-2; BAT
AB We report a correlation based on a spectral simulation study of the prompt emission spectra of gamma-ray bursts (GRBs) detected by the Swift Burst Alert Telescope (BAT). The correlation is between the E-peak energy, which is the peak energy in the nu F-nu spectrum, and the photon index (Gamma) derived from a simple power-law (PL) model. The E-peak-Gamma relation, assuming the typical smoothly broken PL spectrum of GRBs, is log E-peak = 3.258 - 0.829 Gamma (1.3 <= Gamma <= 2.3). We take into account not only a range of E-peak energies and fluences, but also distributions for both the low-energy photon index and the high-energy photon index in the smoothly broken PL model. The distribution of burst durations in the BAT GRB sample is also included in the simulation. Our correlation is consistent with the index observed by BAT and E-peak measured by the BAT, and by other GRB instruments. Since about 85% of GRBs observed by the BAT are acceptably fit with the simple PL model because of the relatively narrow energy range of the BAT, this relationship can be used to estimate E-peak when it is located within the BAT energy range.
C1 [Sakamoto, T.; Cummings, J. R.; Krimm, H. A.; Markwardt, C. B.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Sakamoto, T.; Cummings, J. R.] Univ Maryland Baltimore Cty, Joint Ctr Astrophys, Baltimore, MD 21250 USA.
[Stamatikos, M.] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA.
[Fenimore, E. E.; Palmer, D. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Markwardt, C. B.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Krimm, H. A.] Univ Space Res Assoc, Columbia, MD 21044 USA.
[Sato, G.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Lamb, D. Q.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
[Hullinger, D.] Moxtek Inc, Orem, UT 84057 USA.
[Ukwatta, T. N.] George Washington Univ, Dept Phys, Washington, DC 20052 USA.
RP Sakamoto, T (reprint author), NASA, Goddard Space Flight Ctr, CRESST, Code 661, Greenbelt, MD 20771 USA.
RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; Tueller,
Jack/D-5334-2012; Parsons, Ann/I-6604-2012
NR 58
TC 54
Z9 54
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 MAR 1
PY 2009
VL 693
IS 1
BP 922
EP 935
DI 10.1088/0004-637X/693/1/922
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 414ZE
UT WOS:000263903300077
ER
PT J
AU Li, ST
Buoni, MJ
Li, H
AF Li, Shengtai
Buoni, Matthew J.
Li, Hui
TI A FAST POTENTIAL AND SELF-GRAVITY SOLVER FOR NONAXISYMMETRIC DISKS
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE accretion, accretion discs; methods: numerical; planetary systems:
protoplanetary discs
ID FORMING JOVIAN PLANETS; PROTOPLANETARY DISK; TIDAL INTERACTION; EARLY
EVOLUTION; MIGRATION; COROTATION; ACCRETION; LINDBLAD; TORQUES; SYSTEMS
AB Disk self-gravity could play an important role in the dynamic evolution of interaction between disks and embedded protoplanets. We have developed a fast and accurate solver to calculate the disk potential and disk self-gravity forces for disk systems on a uniform polar grid. Our method closely follows the method given by Chan et al., in which a fast Fourier transform in the azimuthal direction is performed and a direct integral approach in the frequency domain in the radial direction is implemented on a uniform polar grid. This method can be very effective for disks with vertical structures that depend only on the disk radius, achieving the same computational efficiency as for zero-thickness disks. We describe how to parallelize the solver efficiently on distributed parallel computers. We propose a mode-cutoff procedure to reduce the parallel communication cost and achieve nearly linear scalability for a large number of processors. For comparison, we have also developed a particle-based fast tree code to calculate the self-gravity of the disk system with a vertical structure. The numerical results show that our direct integral method is at least two orders of magnitude faster than our optimized tree-code approach.
C1 [Buoni, Matthew J.] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93107 USA.
[Li, Shengtai; Li, Hui] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Li, ST (reprint author), Los Alamos Natl Lab, Div Theoret, MS B284, Los Alamos, NM 87545 USA.
EM sli@lanl.gov; buoni@engineering.ucsb.edu; hli@lanl.gov
OI Li, Shengtai/0000-0002-4142-3080
FU Laboratory Directed Research and Development (LDRD); Los Alamos National
Laboratory Report, Los Alamos [LA-UR-075882]
FX We would like to thank Dr. C.-K. Chan for helpful discussion during his
stay at Los Alamos. We also thank the referee for many useful comments.
This research was performed under the auspices of the Department of
Energy. It was supported by the Laboratory Directed Research and
Development (LDRD) Program at Los Alamos. It is also available as Los
Alamos National Laboratory Report, Los Alamos Report LA-UR-075882.
NR 19
TC 13
Z9 13
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD MAR
PY 2009
VL 181
IS 1
BP 244
EP 254
DI 10.1088/0067-0049/181/1/244
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 415CR
UT WOS:000263912400012
ER
PT J
AU Kean, AJ
Littlejohn, D
Ban-Weiss, GA
Harley, RA
Kirchstetter, TW
Lunden, MM
AF Kean, A. J.
Littlejohn, D.
Ban-Weiss, G. A.
Harley, R. A.
Kirchstetter, T. W.
Lunden, M. M.
TI Trends in on-road vehicle emissions of ammonia
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Ammonia; NH(3); Emissions; Trends; On-road; Vehicle; Light-duty;
Heavy-duty; Nitrogen oxides; NO(x); Carbon monoxide; CO
ID LIGHT-DUTY VEHICLES; NH3 EMISSIONS; NITRIC-ACID; EXHAUST; GASOLINE;
SULFUR; TUNNEL; AMINES; RATES; AIR
AB Motor vehicle emissions of ammonia have been measured at a California highway tunnel in the San Francisco Bay area. Between 1999 and 2006, light-duty vehicle ammonia emissions decreased by 38 +/- 6%, from 640 +/- 40 to 400 +/- 20 mg kg(-1). High time resolution measurements of ammonia made in summer 2001 at the same location indicate a minimum in ammonia emissions correlated with slower-speed driving conditions. Variations in ammonia emission rates track changes in carbon monoxide more closely than changes in nitrogen oxides, especially during later evening hours when traffic speeds are highest. Analysis of remote sensing data of Burgard et al. (Environmental Science Technology 2006, 40, 7018-22) indicates relationships between ammonia and vehicle model year, nitrogen oxides, and carbon monoxide. Ammonia emission rates from diesel trucks were difficult to measure in the tunnel setting due to the large contribution to ammonia concentrations in a mixed-traffic bore that were assigned to light-duty vehicle emissions. Nevertheless, it is clear that heavy-duty diesel trucks are a minor source of ammonia emissions compared to light-duty gasoline vehicles. Published by Elsevier Ltd.
C1 [Kean, A. J.] Calif Polytech State Univ San Luis Obispo, Dept Mech Engn, San Luis Obispo, CA 93407 USA.
[Littlejohn, D.; Kirchstetter, T. W.; Lunden, M. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Ban-Weiss, G. A.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Harley, R. A.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
RP Kean, AJ (reprint author), Calif Polytech State Univ San Luis Obispo, Dept Mech Engn, 1 Grand Ave, San Luis Obispo, CA 93407 USA.
EM akean@calpoly.edu
RI Harley, Robert/C-9177-2016;
OI Harley, Robert/0000-0002-0559-1917; Ban-Weiss,
George/0000-0001-8211-2628
FU California Air Resources Board [05-301]
FX This project was funded by the California Air Resources Board under
Contract 05-301. The statements and conclusions in this paper are those
of the authors and not necessarily those of the California Air Resources
Board. We are grateful to Caltrans staff at the Caldecott tunnel,
Technical Services Division staff of the Bay Area Air Quality Management
District, and California Air Resources Board staff for their assistance.
We also thank Daniel Burgard, Donald Stedman, and Gary Bishop of the
University of Denver and John McLaughlin of UC Berkeley.
NR 27
TC 59
Z9 59
U1 2
U2 40
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD MAR
PY 2009
VL 43
IS 8
BP 1565
EP 1570
DI 10.1016/j.atmosenv.2008.09.085
PG 6
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 417IX
UT WOS:000264070800011
ER
PT J
AU Huo, H
Wu, Y
Wang, M
AF Huo, Hong
Wu, Ye
Wang, Michael
TI Total versus urban: Well-to-wheels assessment of criteria pollutant
emissions from various vehicle/fuel systems
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Well-to-wheels; Criteria pollutants; Alternative fuels; Total emissions;
Urban emissions
ID PARTICULATE AIR-POLLUTION; HEALTH
AB The potential impact on the environment of alternative vehicle/fuel systems needs to be evaluated, especially with respect to human health effects resulting from air pollution. We used the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model to examine the well-to-wheel (WTW) emissions of five criteria pollutants (VOCs, NO(x), PM(10), PM(2.5), and CO) for nine vehicle/fuel systems: (1) conventional gasoline vehicles: (2) conventional diesel vehicles; (3) ethanol (E85) flexible-fuel vehicles (FFVs) fueled with corn-based ethanol; (4) E85 FFVs fueled with switchgrass-based ethanol; (5) gasoline hybrid vehicles (HEVs); (6) diesel HEVs: (7) electric vehicles (EVs) charged using the average U.S. generation mix; (8) EVs charged using the California generation mix; and (9) hydrogen fuel cell vehicles (FCVs). Pollutant emissions were separated into total and urban emissions to differentiate the locations of emissions, and emissions were presented by sources. The results show that WTW emissions of the vehicle/fuel systems differ significantly, in terms of not only the amounts but also with respect to locations and sources, both of which are important in evaluating alternative vehicle/fuel systems. E85 FFVs increase total emissions but reduce urban emissions by up to 30% because the majority of emissions are released from farming equipment, fertilizer manufacture, and ethanol plants, all of which are located in rural areas. HEVs reduce both total and urban emissions because of the improved fuel economy and lower emissions. While EVs significantly reduce total emissions of VOCs and CO by more than 90%, they increase total emissions of PM(10) and PM(2.5) by 35-325%. However, EVs can reduce urban PM emissions by more than 40%. FCVs reduce VOCs, CO, and NO., emissions, but they increase both total and urban PM emissions because of the high process emissions that occur during hydrogen production. This study emphasizes the importance of specifying a thorough life-cycle emissions inventory that can account for both the locations and sources of the emissions to assist in achieving a fair comparison of alternative vehicle/fuel options in terms of their environmental impacts. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Huo, Hong; Wu, Ye; Wang, Michael] Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA.
RP Huo, H (reprint author), Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA.
EM hhuo@anl.gov; ywu@tsinghua.edu.cn; mqwang@anl.gov
RI Wu, Ye/O-9779-2015
FU Office of Energy Efficiency and Renewable Energy of the U.S. Department
of Energy; [DE-AC020-6CH11357]
FX This work was sponsored by Office of Energy Efficiency and Renewable
Energy of the U.S. Department of Energy. Argonne National Laboratory is
a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC,
under contract No. DE-AC020-6CH11357.
NR 25
TC 39
Z9 39
U1 6
U2 40
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD MAR
PY 2009
VL 43
IS 10
BP 1796
EP 1804
DI 10.1016/j.atmosenv.2008.12.025
PG 9
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 421GX
UT WOS:000264348500011
ER
PT J
AU Blanchette, CD
Cappuccio, JA
Kuhn, EA
Segelke, BW
Benner, WH
Chromy, BA
Coleman, MA
Bench, G
Hoeprich, PD
Sulchek, TA
AF Blanchette, Craig D.
Cappuccio, Jenny A.
Kuhn, Edward A.
Segelke, Brent W.
Benner, W. Henry
Chromy, Brett A.
Coleman, Matthew A.
Bench, Graham
Hoeprich, Paul D.
Sulchek, Todd A.
TI Atomic force microscopy differentiates discrete size distributions
between membrane protein containing and empty nanolipoprotein particles
SO BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
LA English
DT Article
DE Apolipoprotein; Nanolipoprotein particle; Nanodisc; Atomic force
microscopy; Membrane protein; Bacteriorhodopsin; NLP
ID HIGH-DENSITY-LIPOPROTEINS; APOLIPOPROTEIN-A-I; PHOSPHOLIPID-BILAYER;
MASS-SPECTROMETRY; LIPID-BILAYERS; BACTERIORHODOPSIN; NANODISCS;
DIMYRISTOYLPHOSPHATIDYLCHOLINE; RECONSTITUTION; SPECTROSCOPY
AB To better understand the incorporation of membrane proteins into discoidal nanolipoprotein particles (NLPs) we have used atomic force microscopy (AFM) to image and analyze NLPs assembled in the presence of bacteriorhodopsin (bR), lipoprotein E4 n-terminal 22k fragment scaffold and DMPC lipid. The self-assembly process produced two distinct NLP populations: those containing inserted bR(bR-NLPs) and those that did not (empty-NLPs). The bR-NLPs were distinguishable from empty-NLPs by an average increase in height of 1.0 nm as measured by AFM. Streptavidin binding to biotinylated bR confirmed that the original 1.0 nm height increase corresponds to br-NLP incorporation. AFM and ion mobility spectrometry (IMS) measurements suggest that NLP size did not vary around a single mean but instead there were several subpopulations, which were separated by discrete diameters. Interestingly, when bR was present during assembly the diameter distribution was shifted to larger particles and the larger particles had a greater likelihood of containing bR than smaller particles, suggesting that membrane proteins alter the mechanism of NLP assembly. (C) 2008 Elsevier B.V. All rights reserved.
C1 [Blanchette, Craig D.; Cappuccio, Jenny A.; Kuhn, Edward A.; Segelke, Brent W.; Benner, W. Henry; Chromy, Brett A.; Coleman, Matthew A.; Bench, Graham; Hoeprich, Paul D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Sulchek, Todd A.] Georgia Inst Technol, Sch Mech Engn, Atlanta, GA 30332 USA.
RP Hoeprich, PD (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave,L-452, Livermore, CA 94550 USA.
EM hoeprich2@llnl.gov; todd.sulchek@me.gatech.edu
OI Coleman, Matthew/0000-0003-1389-4018
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [LDRD
06-SI-003]; [UCRL-JRNL-235806]
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 with support from Lawrence Livermore National
Laboratory (LDRD 06-SI-003 awarded to PDH). UCRL-JRNL-235806.
NR 37
TC 21
Z9 22
U1 0
U2 22
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0005-2736
J9 BBA-BIOMEMBRANES
JI Biochim. Biophys. Acta-Biomembr.
PD MAR
PY 2009
VL 1788
IS 3
BP 724
EP 731
DI 10.1016/j.bbamem.2008.11.019
PG 8
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA 420EJ
UT WOS:000264271400017
PM 19109924
ER
PT J
AU Fischer, NO
Blanchette, CD
Chromy, BA
Kuhn, EA
Segelke, BW
Corzett, M
Bench, G
Mason, PW
Hoeprich, PD
AF Fischer, Nicholas O.
Blanchette, Craig D.
Chromy, Brett A.
Kuhn, Edward A.
Segelke, Brent W.
Corzett, Michele
Bench, Graham
Mason, Peter W.
Hoeprich, Paul D.
TI Immobilization of His-Tagged Proteins on Nickel-Chelating
Nanolipoprotein Particles
SO BIOCONJUGATE CHEMISTRY
LA English
DT Article
ID APOLIPOPROTEIN-A-I; PHOSPHOLIPID-BILAYER NANODISCS; NI-NTA-LIPOSOMES;
DELIVERY-SYSTEMS; 2-DIMENSIONAL CRYSTALLIZATION; ELECTRON-MICROSCOPY;
SUBUNIT VACCINES; LIPID-BILAYERS; BINDING; MEMBRANES
AB Nanolipoprotein particles (NLPs) are nanometer-sized, discoidal particles that self-assemble from purified apolipoprotein and phospholipid. Their size and facile functionalization suggest potential application of NLPs as platforms for the presentation and delivery of recombinant proteins. To this end, we investigated incorporation of nickel-chelating lipids into NLPs (NiNLPs) and subsequent sequestration of polyhistidine (His)-tagged proteins. From initial lipid screens for NLP formation, the two phospholipids DMPC and DOPC were identified as suitable bulk lipids for incorporation of the nickel-chelating lipid DOGS-NTA-Ni into NLPs, and NiNLPs were successfully formed with varying amounts of DOGS-NTA-Ni. NiNLPs consisting of 10% DOGS-NTA-Ni with 90% bulk lipid (either DMPC or DOPC) were thoroughly characterized by size exclusion chromatography (SEC), nondenaturing gradient gel electrophoresis (NDGGE), and atomic force microscopy (AFM). Three different Histagged proteins were sequestered on NiNLPs in a nickel-dependent manner, and the amount of immobilized protein was contingent on the size and composition of the NiNLP.
C1 [Fischer, Nicholas O.; Blanchette, Craig D.; Chromy, Brett A.; Kuhn, Edward A.; Segelke, Brent W.; Corzett, Michele; Bench, Graham; Hoeprich, Paul D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Mason, Peter W.] Univ Texas Galveston, Med Branch, Dept Pathol & Microbiol & Immunol, Galveston, TX 77555 USA.
RP Fischer, NO (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
EM hoeprich2@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[LLNL-JRNL-405192]; Lawrence Livermore National Laboratory [LDRD,
06-SI-003]; [DE-AC52-07NA27344]
FX The authors thank Dr. Karl Weisgraber for providing reagents and Dr.
Roger Martinelli for ICP-AES nickel quantification. This work performed
under the auspices of the U.S. Department of Energy by Lawrence
Livermore National Laboratory (LLNL-JRNL-405192) under Contract
DE-AC52-07NA27344 with support from Lawrence Livermore National
Laboratory (LDRD, 06-SI-003).
NR 34
TC 23
Z9 24
U1 3
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1043-1802
J9 BIOCONJUGATE CHEM
JI Bioconjugate Chem.
PD MAR
PY 2009
VL 20
IS 3
BP 460
EP 465
DI 10.1021/bc8003155
PG 6
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Multidisciplinary; Chemistry, Organic
SC Biochemistry & Molecular Biology; Chemistry
GA 421WU
UT WOS:000264389800009
PM 19239247
ER
PT J
AU Lynd, LR
Larson, E
Greene, N
Laser, M
Sheehan, J
Dale, BE
McLaughlin, S
Wang, M
AF Lynd, Lee R.
Larson, Eric
Greene, Nathanael
Laser, Mark
Sheehan, John
Dale, Bruce E.
McLaughlin, Samuel
Wang, Michael
TI The role of biomass in America's energy future: framing the analysis
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Article
DE biomass; biorefinery; biofuels; mature technology
ID SOIL-EROSION; SWITCHGRASS; BIOENERGY; ETHANOL; FUELS; CROP; CHEMICALS;
BIOFUELS
AB The Role of Biomass in America's Energy Future (RBAEF) project, initiated during the first half of 2003, has sought to identify and evaluate paths by which biomass can make a large contribution to energy services and determine means to accelerate biomass energy use. In addressing these issues, the study has focused on future, mature, technologies rather than today's technology. This perspective - the first of eight papers that comprise this issue - introduces the project, providing an operative definition of and method for estimating mature technology, a rationale for choosing the model feedstock, a list of the conversion technologies considered, and as a point of reference, a brief overview of the energy flows through a typical petroleum refinery. The subsequent papers are introduced as well. (C) 2009 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Lynd, Lee R.; Laser, Mark] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
[Larson, Eric] Princeton Univ, Princeton Environm Inst, Energy Syst Anal Grp, Princeton, NJ 08544 USA.
[Greene, Nathanael] Nat Resources Def Council, New York, NY USA.
[Sheehan, John] SheehanBoyce LLC, Littleton, CO USA.
[Dale, Bruce E.] Michigan State Univ, Dept Chem Engn, E Lansing, MI 48824 USA.
[McLaughlin, Samuel] Univ Tennessee, Knoxville, TN USA.
[Wang, Michael] Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA.
RP Lynd, LR (reprint author), Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
EM lee.lynd@dartmouth.edu
RI Lynd, Lee/N-1260-2013
OI Lynd, Lee/0000-0002-5642-668X
NR 41
TC 61
Z9 62
U1 4
U2 19
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 1932-104X
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD MAR-APR
PY 2009
VL 3
IS 2
BP 113
EP 123
DI 10.1002/bbb.134
PG 11
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA 425GK
UT WOS:000264624800009
ER
PT J
AU Sokhansanj, S
Mani, S
Turhollow, A
Kumar, A
Bransby, D
Lynd, L
Laser, M
AF Sokhansanj, Shahab
Mani, Sudhagar
Turhollow, Anthony
Kumar, Amit
Bransby, David
Lynd, Lee
Laser, Mark
TI Large-scale production, harvest and logistics of switchgrass (Panicum
virgatum L.) - current technology and envisioning a mature technology
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Article
DE switchgrass; harvest and collection; logistics, IBSAL, handling and
pre-processing; transport; supply chain and logistics; cost, energy and
emissions
ID BIOMASS PRODUCTION; UNITED-STATES; CORN STOVER; NITROGEN-FERTILIZATION;
PIPELINE TRANSPORT; BIOENERGY; QUALITY; YIELD; AGRICULTURE; PERFORMANCE
AB Switchgrass (Panicum virgatum L.) is a promising cellulosic biomass feedstock for biorefineries and biofuel production. This paper reviews current and future potential technologies for production, harvest, storage, and transportation of switchgrass. Our analysis indicates that for a yield of 10 Mg ha(-1), the current cost of producing switchgrass (after establishment) is about $41.50 Mg(-1). The costs may be reduced to about half this if the yield is increased to 30 Mg ha(-1) through genetic improvement, intensive crop management, and/or optimized inputs. At a yield of 10 Mg ha(-1), we estimate that harvesting costs range from $23.72 Mg(-1) for current baling technology to less than $16 Mg(-1) when using a loafing collection system. At yields of 20 and 30 Mg ha(-1) with an improved loafing system, harvesting costs are even lower at $12.75 Mg(-1) and $9.59 Mg(-1), respectively. Transport costs vary depending upon yield and fraction of land under switchgrass, bulk density of biomass, and total annual demand of a biorefinery. For a 2000 Mg d(-1) plant and an annual yield of 10 Mg ha(-1), the transport cost is an estimated $15.42 Mg(-1), assuming 25% of the land is under switchgrass production. Total delivered cost of switchgrass using current baling technology is $80.64 Mg(-1), requiring an energy input of 8.5% of the feedstock higher heating value (HHV). With mature technology, for example, a large, loaf-collection system, the total delivered cost is reduced to about $71.16 Mg(-1) with 7.8% of the feedstock HHV required as input. Further cost reduction can be achieved by combining mature technology with increased crop productivity. Delivered cost and energy input do not vary significantly as biorefinery capacity increases from 2000 Mg d(-1) to 5000 Mg d(-1) because the cost of increased distance to access a larger volume feedstock offsets the gains in increased biorefinery capacity. This paper outlines possible scenarios for the expansion of switchgrass handling to 30 Tg (million Mg) in 2015 and 100 Tg in 2030 based on predicted growth of the biorefinery industry in the USA. The value of switchgrass collection operations is estimated at more than $0.6 billion in 2015 and more than $2.1 billion in 2030. The estimated value of post-harvest operations is $0.6-$2.0 billion in 2015, and $2.0-$6.5 billion in 2030, depending on the degree of preprocessing. The need for power equipment (tractors) will increase from 100 MW in 2015 to 666 MW in 2030, with corresponding annual values of $150 and $520 million, respectively. (C) 2009 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Sokhansanj, Shahab; Turhollow, Anthony] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Mani, Sudhagar] Univ Georgia, Dept Biol & Agr Engn, Athens, GA 30602 USA.
[Kumar, Amit] Univ Alberta, Dept Mech Engn, Edmonton, AB, Canada.
[Bransby, David] Auburn Univ, Auburn, AL 36849 USA.
[Lynd, Lee; Laser, Mark] Dartmouth Coll, Hanover, NH 03755 USA.
RP Sokhansanj, S (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
EM sokhansanjs@ornl.gov
RI Mani, Sudhagar/A-4315-2010; Lynd, Lee/N-1260-2013
OI Lynd, Lee/0000-0002-5642-668X
FU Office of Biomass Program of the US Department of Energy; Natural
Sciences and Engineering Research Council of Canada (NSERC)
FX We acknowledge financial support from the Office of Biomass Program of
the US Department of Energy. Financial contribution for this work was
also provided by the Natural Sciences and Engineering Research Council
of Canada (NSERC) in support of graduate research.
NR 64
TC 118
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U1 3
U2 35
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 1932-104X
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD MAR-APR
PY 2009
VL 3
IS 2
BP 124
EP 141
DI 10.1002/bbb.129
PG 18
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA 425GK
UT WOS:000264624800010
ER
PT J
AU Laser, M
Larson, E
Dale, B
Wang, M
Greene, N
Lynd, LR
AF Laser, Mark
Larson, Eric
Dale, Bruce
Wang, Michael
Greene, Nathanael
Lynd, Lee R.
TI Comparative analysis of efficiency, environmental impact, and process
economics for mature biomass refining scenarios
SO BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
LA English
DT Article
DE biomass; biorefinery; efficiency; economics; environment; energy;
biofuels
ID LIFE-CYCLE ASSESSMENT; WATER-USE EFFICIENCY; BIOFUELS; ENERGY
AB Fourteen mature technology biomass refining scenarios - involving both biological and thermochemical processing with production of fuels, power, and/or animal feed protein - are compared with respect to process efficiency, environmental impact - including petroleum use, greenhouse gas (GHG) emissions, and water use - and economic profitability. The emissions analysis does not account for carbon sinks (e. g., soil carbon sequestration) or sources (e. g., forest conversion) resulting from land-use considerations. Sensitivity of the scenarios to fuel and electricity price, feedstock cost, and capital structure is also evaluated. The thermochemical scenario producing only power achieves a process efficiency of 49% (energy out as power as a percentage of feedstock energy in), 1359 kg CO(2) equivalent avoided GHG emissions per Mg feedstock (current power mix basis) and a cost of $0.0575/kWh ($16/GJ), at a scale of 4535 dry Mg feedstock/day, 12% internal rate of return, 35% debt fraction, and 7% loan rate. Thermochemical scenarios producing fuels and power realize efficiencies between 55 and 64%, avoided GHG emissions between 1000 and 1179 kg/dry Mg, and costs between $0.36 and $0.57 per liter gasoline equivalent ($1.37 - $2.16 per gallon) at the same scale and financial structure. Scenarios involving biological production of ethanol with thermochemical production of fuels and/or power result in efficiencies ranging from 61 to 80%, avoided GHG emissions from 965 to 1,258 kg/dry Mg, and costs from $0.25 to $0.33 per liter gasoline equivalent ($0.96 to $1.24/gallon). Most of the biofuel scenarios offer comparable, if not lower, costs and much reduced GHG emissions (>90%) compared to petroleum-derived fuels. Scenarios producing biofuels result in GHG displacements that are comparable to those dedicated to power production (e. g., >825 kg CO(2) equivalent/dry Mg biomass), especially when a future power mix less dependent upon fossil fuel is assumed. Scenarios integrating biological and thermochemical processing enable waste heat from the thermochemical process to power the biological process, resulting in higher overall process efficiencies than would otherwise be realized - efficiencies on par with petroleum-based fuels in several cases. c 2009 Society of Chemical Industry and John Wiley & Sons, Ltd
C1 [Laser, Mark; Lynd, Lee R.] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
[Larson, Eric] Princeton Univ, Princeton Environm Inst, Energy Syst Anal Grp, Princeton, NJ 08544 USA.
[Dale, Bruce] Michigan State Univ, Dept Chem Engn, E Lansing, MI 48824 USA.
[Wang, Michael] Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA.
[Greene, Nathanael] Natl Res Def Council, New York, NY USA.
RP Lynd, LR (reprint author), Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
EM lee.lynd@dartmouth.edu
RI Lynd, Lee/N-1260-2013
OI Lynd, Lee/0000-0002-5642-668X
FU National Renewable Energy Laboratory [XCO-3-33033-01]; National
Institute of Standards and Technology [60NANB1D0064]; National Science
Foundation [CMS - 0424700]
FX We thank all of our colleagues in the RBAEF project for stimulating and
informative discussions throughout the course of the project, which
contributed directly and indirectly to the contents of this paper: David
Bransby, Fuat Celik, Kemantha Jayawardhana, Haiming Jin, Jim Kiniry,
Amit Kumar Sudhagar Mani, John McBride, Samuel McLaughlin, Steve
Peterson, Daniel Saccardi, John Sheehan, Shahab Sokhansanj, Charles
Taliaferro, Anthony Turhollow, Daniel Ugarte, May Wu, Charles Wyman. We
also acknowledge other colleagues who also offered their judgment,
information, and assistance: Andy Aden, Michael Casler, Gordon Cheng,
Joel Cherry, Billie Christen, Patrick Costello, John DeCicco, Reid
Detchon, Tim Eggeman, Alison Findon, David Friedman, John German,
Tillman Gerngross, Robin Graham, Chad Hellwinckel, Bob Hickey, Martin
Hocking, Kelly Ibsen, John Jechura, Hans Jung, Tom Kenney, Drew Kodjak,
Jason Mark, Roger McDaniel, William Mitchell, Joan Ogden, Michael
Pacheco, Charlotte Pera, Srini Raj, Lloyd Ritter, Larry Russo, Mark
Ruth, Daniel Santini, Pamela Spath, Richard Tolman, Ken Vogel, and Luca
Zullo. For financial support, we thank the National Renewable Energy
Laboratory (award #: XCO-3-33033-01), the National Institute of
Standards and Technology (award #: 60NANB1D0064), and the National
Science Foundation (award #: CMS - 0424700).
NR 39
TC 69
Z9 72
U1 2
U2 39
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 1932-104X
J9 BIOFUEL BIOPROD BIOR
JI Biofuels Bioprod. Biorefining
PD MAR-APR
PY 2009
VL 3
IS 2
BP 247
EP 270
DI 10.1002/bbb.136
PG 24
WC Biotechnology & Applied Microbiology; Energy & Fuels
SC Biotechnology & Applied Microbiology; Energy & Fuels
GA 425GK
UT WOS:000264624800016
ER
PT J
AU Alexander, RB
Bohlke, JK
Boyer, EW
David, MB
Harvey, JW
Mulholland, PJ
Seitzinger, SP
Tobias, CR
Tonitto, C
Wollheim, WM
AF Alexander, Richard B.
Bohlke, John Karl
Boyer, Elizabeth W.
David, Mark B.
Harvey, Judson W.
Mulholland, Patrick J.
Seitzinger, Sybil P.
Tobias, Craig R.
Tonitto, Christina
Wollheim, Wilfred M.
TI Dynamic modeling of nitrogen losses in river networks unravels the
coupled effects of hydrological and biogeochemical processes
SO BIOGEOCHEMISTRY
LA English
DT Article; Proceedings Paper
CT Workshop on Denitrification Modeling Across Terrestrial, Freshwater and
Marine Systems
CY NOV 28-30, 2006
CL Inst Ecosyst Studies, Millbrook, NY
SP Natl Sci Fdn, Dentirificat Res Coordinat Network
HO Inst Ecosyst Studies
DE Denitrification; Seasonal; Nitrate model; LINX; NHD river network;
Nitrate loss; Nitrate removal efficiency; Anthropogenic nitrogen
ID GULF-OF-MEXICO; MISSISSIPPI RIVER; SEDIMENT DENITRIFICATION; STREAM
DENITRIFICATION; AGRICULTURAL STREAMS; HEADWATER STREAMS; NITRATE;
TRANSPORT; RATES; WATERSHEDS
AB The importance of lotic systems as sinks for nitrogen inputs is well recognized. A fraction of nitrogen in streamflow is removed to the atmosphere via denitrification with the remainder exported in streamflow as nitrogen loads. At the watershed scale, there is a keen interest in understanding the factors that control the fate of nitrogen throughout the stream channel network, with particular attention to the processes that deliver large nitrogen loads to sensitive coastal ecosystems. We use a dynamic stream transport model to assess biogeochemical (nitrate loadings, concentration, temperature) and hydrological (discharge, depth, velocity) effects on reach-scale denitrification and nitrate removal in the river networks of two watersheds having widely differing levels of nitrate enrichment but nearly identical discharges. Stream denitrification is estimated by regression as a nonlinear function of nitrate concentration, streamflow, and temperature, using more than 300 published measurements from a variety of US streams. These relations are used in the stream transport model to characterize nitrate dynamics related to denitrification at a monthly time scale in the stream reaches of the two watersheds. Results indicate that the nitrate removal efficiency of streams, as measured by the percentage of the stream nitrate flux removed via denitrification per unit length of channel, is appreciably reduced during months with high discharge and nitrate flux and increases during months of low-discharge and flux. Biogeochemical factors, including land use, nitrate inputs, and stream concentrations, are a major control on reach-scale denitrification, evidenced by the disproportionately lower nitrate removal efficiency in streams of the highly nitrate-enriched watershed as compared with that in similarly sized streams in the less nitrate-enriched watershed. Sensitivity analyses reveal that these important biogeochemical factors and physical hydrological factors contribute nearly equally to seasonal and stream-size related variations in the percentage of the stream nitrate flux removed in each watershed.
C1 [Alexander, Richard B.; Bohlke, John Karl; Harvey, Judson W.] US Geol Survey, Reston, VA 20192 USA.
[Boyer, Elizabeth W.] Penn State Univ, University Pk, PA 16802 USA.
[David, Mark B.] Univ Illinois, Urbana, IL 61801 USA.
[Mulholland, Patrick J.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Seitzinger, Sybil P.] Rutgers State Univ, New Brunswick, NJ 08901 USA.
[Tobias, Craig R.] Univ N Carolina, Wilmington, NC 28403 USA.
[Tonitto, Christina] Cornell Univ, Ithaca, NY 14853 USA.
[Wollheim, Wilfred M.] Univ New Hampshire, Durham, NH 03824 USA.
RP Alexander, RB (reprint author), US Geol Survey, 12201 Sunrise Valley Dr, Reston, VA 20192 USA.
EM ralex@usgs.gov
RI Mulholland, Patrick/C-3142-2012; Boyer, Elizabeth/D-6617-2013; Harvey,
Judson/L-2047-2013
OI Harvey, Judson/0000-0002-2654-9873
NR 37
TC 95
Z9 98
U1 7
U2 94
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0168-2563
J9 BIOGEOCHEMISTRY
JI Biogeochemistry
PD MAR
PY 2009
VL 93
IS 1-2
BP 91
EP 116
DI 10.1007/s10533-008-9274-8
PG 26
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 416CD
UT WOS:000263981900006
ER
PT J
AU Bearinger, JP
Dugan, LC
Wu, LG
Hill, H
Christian, AT
Hubbell, JA
AF Bearinger, Jane P.
Dugan, Lawrence C.
Wu, Ligang
Hill, Haley
Christian, Allen T.
Hubbell, Jeffrey A.
TI Chemical tethering of motile bacteria to silicon surfaces
SO BIOTECHNIQUES
LA English
DT Article
DE E. coli; tethering; patterning; microarrays; imaging; host-pathogen
response; drug discovery; biofuel cells
ID MICROBIAL FUEL-CELLS; ELECTRICITY-GENERATION; CRYOELECTRON MICROSCOPY;
PROTEIN ADSORPTION; BACILLUS-SUBTILIS; QUANTUM DOTS; BIOSENSORS; GROWTH;
MICROORGANISMS; METABOLITES
AB We chemically immobilized live, motile Escherichia coli on micrometer-scale, photocatalytically patterned silicon surfaces via amine- and carboxylic acid-based chemistries. Immobilization facilitated (i) controlled positioning; (ii) high resolution cell wall imaging via atomic force microscopy (AFM); and (iii) chemical analysis with time-of-flight-secondary ion mass spectrometry (ToF-SIMS). Spinning motion of tethered bacteria, captured with fast-acquisition video, proved microbe viability. We expect our protocols to open new experimental doors for basic and applied studies of microorganisms, from host-pathogen relationships, to microbial forensics and drug discovery, to biosensors and biofuel cell optimization.
C1 [Bearinger, Jane P.; Dugan, Lawrence C.; Wu, Ligang] Lawrence Livermore Natl Lab, CMELS, Livermore, CA 94550 USA.
[Hill, Haley] Northwestern Univ, Dept Chem, Evanston, IL USA.
[Christian, Allen T.] Monsanto Co, St Louis, MO USA.
[Hubbell, Jeffrey A.] Ecole Polytech Fed Lausanne, Inst Bioengn, Lausanne, Switzerland.
[Hubbell, Jeffrey A.] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, Lausanne, Switzerland.
RP Bearinger, JP (reprint author), Lawrence Livermore Natl Lab, CMELS, 7000 E Ave L-211, Livermore, CA 94550 USA.
EM bearinger1@llnl.gov
RI yu, yu/C-7781-2009; Wu, Ligang/C-7770-2009; Hubbell, Jeffrey/A-9266-2008
OI Hubbell, Jeffrey/0000-0003-0276-5456
FU National Institutes of Health [R21 EB003991]; Laboratory Science and
Technology Office [03-ERD-068]; National Science Foundation's Center for
Biophotonic Science and Technology at the University of California,
Davis; U.S. Department of Energy by Lawrence Livermore National
Laboratory [W-7405-Eng-48]; [DE-AC52-07NA27344]
FX Authors J.B. and J.H. are listed as co-inventors for a patent (USPTO
application no. 20060127595) related to the patterning technique used in
this publication. All other authors declare no competing interests.
NR 52
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Z9 13
U1 1
U2 16
PU INFORMA HEALTHCARE
PI NEW YORK
PA 52 VANDERBILT AVE, NEW YORK, NY 10017 USA
SN 0736-6205
J9 BIOTECHNIQUES
JI Biotechniques
PD MAR
PY 2009
VL 46
IS 3
BP 209
EP +
DI 10.2144/000113073
PG 7
WC Biochemical Research Methods; Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 446BS
UT WOS:000266095800012
PM 19317664
ER
PT J
AU Tan, YJ
Martin, HG
Dehal, PS
Deutschbauer, A
Llora, X
Meadows, A
Arkin, A
Keasling, JD
AF Tan, Yinjie J.
Martin, Hector Garcia
Dehal, Paramvir S.
Deutschbauer, Adam
Llora, Xavier
Meadows, Adam
Arkin, Adam
Keasling, Jay D.
TI Metabolic Flux Analysis of Shewanella spp. Reveals Evolutionary
Robustness in Central Carbon Metabolism
SO BIOTECHNOLOGY AND BIOENGINEERING
LA English
DT Article
DE lactate; exponential growth; metabotypes; phylotypes; flux profiles
ID ESCHERICHIA-COLI; ONEIDENSIS MR-1; NETWORKS; SYSTEMS
AB Shewanella spp. are a group of facultative anaerobic bacteria widely distributed in marine and freshwater environments. In this Study, we profiled the central metabolic fluxes of eight recently sequenced Shewanella species grown under the same condition in minimal medium with [3-(13)C] lactate. Although the tested Shewanella species had slightly different growth rates (0.23-0.29 h(-1)) and produced different amounts of acetate and pyruvate during early exponential growth (pseudo-steady state), the relative intracellular metabolic flux distributions were remarkably similar. This result indicates that Shewanella species share similar regulation in regard to central carbon metabolic fluxes under steady growth conditions: the maintenance of metabolic robustness is not only evident in a single species under genetic perturbations (Fischer and Sauer, 2005; Nat Genet 37(6):636-640), but also observed through evolutionary related microbial species. This remarkable conservation of relative flux profiles through phylogenetic differences prompts LIS to introduce the concept of metabotype as an alternative scheme to classify microbial fluxomics. On the other hand, Shewanella spp. display flexibility in the relative flux profiles when switching their metabolism from consuming lactate to consuming pyruvate and acetate.
C1 [Tan, Yinjie J.; Dehal, Paramvir S.; Deutschbauer, Adam; Arkin, Adam; Keasling, Jay D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Virtual Inst Microbial Stress & Survival, Berkeley, CA 94720 USA.
[Tan, Yinjie J.] Washington Univ, Dept Environm Chem & Engn, St Louis, MO USA.
[Martin, Hector Garcia; Dehal, Paramvir S.; Deutschbauer, Adam; Arkin, Adam; Keasling, Jay D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
[Martin, Hector Garcia; Arkin, Adam; Keasling, Jay D.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Llora, Xavier] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA.
[Meadows, Adam] Amyris Biotechnol Inc, Emeryville, CA USA.
[Arkin, Adam; Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
RP Keasling, JD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Virtual Inst Microbial Stress & Survival, Berkeley, CA 94720 USA.
EM keasling@berkeley.edu
RI Garcia Martin, Hector/B-5357-2009; Keasling, Jay/J-9162-2012; Arkin,
Adam/A-6751-2008
OI Garcia Martin, Hector/0000-0002-4556-9685; Keasling,
Jay/0000-0003-4170-6088; Arkin, Adam/0000-0002-4999-2931
FU U.S. Department of Energy, Office of Science, Office of Biological and
Environmental Research, Genomics:GTL Program [DE-AC02-05CH11231];
Lawrence Berkeley National Laboratory; US Department of Energy; Joint
BioEnergy Institute
FX We thank J. Chu for help with experiments and isotopomer analysis, N.
Zamboni from ETH Zurich for useful discussion on 13C based
flux analysis, and P. Hugenholtz for comments and financial support of
HGM. This work is part of the Virtual Institute for Microbial Stress and
Survival (http://VIMSS.Ibl.gov), supported by the U.S. Department of
Energy, Office of Science, Office of Biological and Environmental
Research, Genomics:GTL Program through contract DE-AC02-05CH11231
between the Lawrence Berkeley National Laboratory and the US Department
of Energy, and part of the Joint BioEnergy Institute, supported by the
U.S. Department of Energy.
NR 26
TC 0
Z9 0
U1 0
U2 9
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0006-3592
J9 BIOTECHNOL BIOENG
JI Biotechnol. Bioeng.
PD MAR 1
PY 2009
VL 102
IS 4
BP 1161
EP 1169
DI 10.1002/bit.22129
PG 9
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 404EZ
UT WOS:000263135000020
ER
PT J
AU Wyman, CE
Dale, BE
Elander, RT
Holtzapple, M
Ladisch, MR
Lee, YY
Mitchinson, C
Saddler, JN
AF Wyman, Charles E.
Dale, Bruce E.
Elander, Richard T.
Holtzapple, Mark
Ladisch, Michael R.
Lee, Y. Y.
Mitchinson, Colin
Saddler, John N.
TI Comparative Sugar Recovery and Fermentation Data Following Pretreatment
of Poplar Wood by Leading Technologies
SO BIOTECHNOLOGY PROGRESS
LA English
DT Article
DE ammonia fiber expansion; ammonia recycle pretreatment; controlled pH
pretreatment; dilute sulfuric acid pretreatment; lime pretreatment;
poplar wood; pretreatment; sulfur dioxide pretreatment; enzymatic
hydrolysis; fermentation of hydrolyzates
ID CORN STOVER; ENZYMATIC-HYDROLYSIS; HOT-WATER; BIOMASS; ETHANOL;
OPTIMIZATION
AB Through a Biomass Refining Consortium for Applied Fundamentals and Innovation among Auburn University, Dartmouth College, Michigan State University, the National Renewable Energy Laboratory, Purdue University, Texas A&M University, the University of British Columbia, and the University of California at Riverside, leading pretreatment technologies based on ammonia fiber expansion, aqueous ammonia recycle, dilute sulfuric acid, lime, neutral pH, and sulfur dioxide were applied to a single source of poplar wood, and the remaining solids from each technology were hydrolyzed to sugars using the same enzymes. Identical analytical methods and a consistent material balance methodology were employed to develop comparative performance data for each combination of pretreatment and enzymes. Overall, compared to data with corn stover employed previously, the results showed that poplar was more recalcitrant to conversion to sugars and that sugar yields from the combined operations of pretreatment and enzymatic hydrolysis varied more among pretreatments. However, application of more severe Pretreatment conditions gave good yields from sulfur dioxide and lime, and a recombinant yeast strain fermented the mixed stream of glucose and xylose sugars released by enzymatic hydrolysis of water washed solids from all pretreatments to ethanol with similarly high yields. An Agricultural and Industrial Advisory Board followed progress and helped steer the research to meet scientific and commercial needs. (C) 2009 American Institute of Chemical Engineers Biotechnol. Prog., 25: 333-339, 2009
C1 [Wyman, Charles E.] Univ Calif Riverside, Chem & Environm Engn Dept, Riverside, CA 92507 USA.
[Wyman, Charles E.] Univ Calif Riverside, Ctr Environm Res & Technol, Riverside, CA 92507 USA.
[Wyman, Charles E.] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA.
[Dale, Bruce E.] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA.
[Elander, Richard T.] Natl Bioenergy Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Holtzapple, Mark] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA.
[Ladisch, Michael R.] Purdue Univ, Lab Renewable Resources, W Lafayette, IN 47907 USA.
[Lee, Y. Y.] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA.
[Mitchinson, Colin] Genencor Int, Palo Alto, CA USA.
[Saddler, John N.] Univ British Columbia, Fac Forestry, Vancouver, BC, Canada.
RP Wyman, CE (reprint author), Univ Calif Riverside, Chem & Environm Engn Dept, Riverside, CA 92507 USA.
EM charles.wyman@ucr.edu
RI Saddler, Jack (John)/A-9103-2013
FU United States Department of Energy [DE-FG36-04GO14017]
FX Funding by the Office of the Biomass Program of the United States
Department of Energy through contract number DE-FG36-04GO14017 was vital
to performing this research. In addition, Natural Resources Canada
supported participation by the University of British Columbia. We thank
Dartmouth College for managing the subcontracts to the CAFI partners
after the PI moved to the University of California at Riverside. The
true collaborative spirit of the CAM team made this project possible and
pleasurable, and we thank the many undergraduate and graduate students,
post doctoral candidates, technicians, and others of the CAM team for
their vital role in developing this information.
NR 20
TC 166
Z9 169
U1 4
U2 76
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 8756-7938
J9 BIOTECHNOL PROGR
JI Biotechnol. Prog.
PD MAR-APR
PY 2009
VL 25
IS 2
BP 333
EP 339
DI 10.1021/bp.142
PG 7
WC Biotechnology & Applied Microbiology; Food Science & Technology
SC Biotechnology & Applied Microbiology; Food Science & Technology
GA 438RI
UT WOS:000265572700005
PM 19294662
ER
PT J
AU Marner, WD
Shaikh, AS
Muller, SJ
Keasling, JD
AF Marner, Wesley D., II
Shaikh, Afshan S.
Muller, Susan J.
Keasling, Jay D.
TI Enzyme Immobilization via Silaffin-Mediated Autoencapsulation in a
Biosilica Support
SO BIOTECHNOLOGY PROGRESS
LA English
DT Article
DE silaffin; enzyme immobilization; R5 peptide; biosilica
ID SILICA; MINERALIZATION; PEPTIDES
AB Enzymes and other biomolecules are often immobilized in a matrix to improve their stability or to improve their ability to be reused. Performing a polycondensation reaction in the presence of a biomolecule of interest relies on random entrapment events during polymerization and may not ensure efficient, homogeneous, or complete biomolecule encapsulation. To overcome these limitations, we have developed a method of incorporating autosilification activity into proteins without affecting enzymatic functionality. The unmodified R5 silaffin peptide from Cylindrotheca fusiformis is capable of initiating silica polycondensation in vitro at ambient temperatures and pressures in aqueous solution. In this study, translational fusion proteins between R5 and various functional proteins (phosphodiesterase, organophosphate hydrolase, and green fluorescent protein) were produced in Escherichia coli. Each of the fusion proteins initiated silica polycondensation, and enzymatic activity (or fluorescence) was retained in the resulting silica spheres. Under certain circumstances, the enzymatically-active biosilica displayed improved stability relative to free enzyme at elevated temperatures. (C) 2009 American Institute of Chemical Engineers Biotechnol. Prog., 25: 417-423, 2009
C1 [Marner, Wesley D., II; Shaikh, Afshan S.; Muller, Susan J.; Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Lawrence Berkeley Natl Lab, Synthet Biol Dept, Phys Biosci Div, Berkeley, CA 94720 USA.
[Keasling, Jay D.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
RP Keasling, JD (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
EM keasling@berkeley.edu
RI Keasling, Jay/J-9162-2012
OI Keasling, Jay/0000-0003-4170-6088
FU NIH [T32 GM008352]; NSF [EEC-0425914]
FX W.M. thanks the NIH (T32 GM008352) for support of this research and
A.S.S. acknowledges funding through the NSF COINS program at UC Berkeley
(EEC-0425914). The authors also thank the UC Berkeley Electron
Microscope facility for assistance with SEM imagery.
NR 16
TC 34
Z9 35
U1 2
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 8756-7938
J9 BIOTECHNOL PROGR
JI Biotechnol. Prog.
PD MAR-APR
PY 2009
VL 25
IS 2
BP 417
EP 423
DI 10.1002/bp.136
PG 7
WC Biotechnology & Applied Microbiology; Food Science & Technology
SC Biotechnology & Applied Microbiology; Food Science & Technology
GA 438RI
UT WOS:000265572700015
PM 19334285
ER
PT J
AU Collier, SA
Rasmussen, SA
Feldkamp, ML
Honein, MA
AF Collier, Sarah A.
Rasmussen, Sonia A.
Feldkamp, Marcia L.
Honein, Margaret A.
CA Natl Birth Defects Prevention
TI Prevalence of Self-reported Infection during Pregnancy among Control
Mothers in the National Birth Defects Prevention Study
SO BIRTH DEFECTS RESEARCH PART A-CLINICAL AND MOLECULAR TERATOLOGY
LA English
DT Article
DE infection; fever; infection prevalence; pregnancy; preterm birth
ID URINARY-TRACT-INFECTIONS; NEURAL-TUBE DEFECTS; ADULT SCHIZOPHRENIA;
BACTERIAL VAGINOSIS; PRENATAL EXPOSURE; RISK-FACTORS;
CYTOMEGALOVIRUS-INFECTION; CONGENITAL-ABNORMALITIES; ASYMPTOMATIC
BACTERIURIA; MULTIVITAMIN USE
AB BACKGROUND: Although specific maternal infections during pregnancy have been associated with birth defects and other adverse pregnancy outcomes, the prevalence of infections during pregnancy has not been well described. METHODS: We estimated the prevalence of self-reported infection among 4967 women with live-born infants without major birth defects. We assessed the prevalence of reported infections and fever by type of infection, specific illness, and maternal characteristics including race and age. RESULTS: Overall, 63.6% of women reported at least one infection during pregnancy. Reports of infections were more common during pregnancy than in the 3 months before pregnancy. Nearly half (49.6%) of women reported a respiratory infection, 20.5% reported a fever, 17.1% reported a urinary tract infection, 4.2% reported a yeast infection, and 3.4% reported a sexually transmitted disease. A subanalysis of self-reported infection and preterm delivery was performed among primiparous mothers with singleton pregnancies, but no statistically significant differences in infection prevalence were found. Women younger than 35 years reported nonrespiratory infections more frequently than women aged 35 years or older (prevalence ratio [PR] 1.41; 95% confidence interval [CI]: 1.21-1.64). Prevalence of nonrespiratory infections was also higher among those who smoked than among those who did not (PR 1,33; 95% CI: 1.20-1.47). CONCLUSIONS: Reported infections during pregnancy are common, implying that a small increase in risk for birth defects or other adverse pregnancy outcomes could have a significant public health effect and underscoring the importance Of understanding the effects of prenatal infections. Birth Defects Research (Part A) 85:193-201, 2009. (C) 2008 Wiley-Liss, Inc.
C1 [Collier, Sarah A.; Rasmussen, Sonia A.; Honein, Margaret A.] Ctr Dis Control & Prevent, Natl Ctr Birth Defects & Dev Disabil, Atlanta, GA 30333 USA.
[Collier, Sarah A.] Oak Ridge Inst Sci Educ, Oak Ridge, TN USA.
[Feldkamp, Marcia L.] Univ Utah, Hlth Sci Ctr, Dept Pediat, Div Med Genet, Salt Lake City, UT USA.
RP Collier, SA (reprint author), Ctr Dis Control & Prevent, Natl Ctr Birth Defects & Dev Disabil, 1600 Clifton Rd,MS E-86, Atlanta, GA 30333 USA.
EM scollier@cdc.gov
RI Publications, NBDPS/B-7692-2013
FU Research Participation Program for the Centers for Disease Control and
Prevention administered by the Oak Ridge Institute for Science and
Education through an agreement between the U.S. Department of Energy and
CDC
FX We thank Dr. William Callaghan for helpful conversations regarding this
manuscript, Ms. Emily Petersen for her assistance in classifying
infections, and the participating centers and families of the National
Birth Defects Prevention Study. This project was supported in part by an
appointment to the Research Participation Program for the Centers for
Disease Control and Prevention administered by the Oak Ridge Institute
for Science and Education through an agreement between the U.S.
Department of Energy and CDC.
NR 61
TC 20
Z9 20
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1542-0752
EI 1542-0760
J9 BIRTH DEFECTS RES A
JI Birth Defects Res. Part A-Clin. Mol. Teratol.
PD MAR
PY 2009
VL 85
IS 3
BP 193
EP 201
DI 10.1002/bdra.20540
PG 9
WC Developmental Biology; Toxicology
SC Developmental Biology; Toxicology
GA 426FU
UT WOS:000264694200003
PM 19086018
ER
PT J
AU Shin, M
Lu, CX
Siffel, C
Kucik, JE
Correa, A
AF Shin, Mikyong
Lu, Chengxing
Siffel, Csaba
Kucik, James E.
Correa, Adolfo
TI Does the Survival of Children with Mosaic Down Syndrome Differ from that
of Children with Non-Mosaic Down Syndrome?
SO BIRTH DEFECTS RESEARCH PART A-CLINICAL AND MOLECULAR TERATOLOGY
LA English
DT Meeting Abstract
C1 [Shin, Mikyong; Lu, Chengxing; Siffel, Csaba; Kucik, James E.; Correa, Adolfo] Ctr Dis Control & Prevent, Natl Ctr Birth Defects & Dev Disabil, Atlanta, GA USA.
[Lu, Chengxing] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
[Siffel, Csaba] Comp Sci Corp, Atlanta, GA USA.
Metropolitan Atlanta Congenital Defects Program, Atlanta, GA USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1542-0752
EI 1542-0760
J9 BIRTH DEFECTS RES A
JI Birth Defects Res. Part A-Clin. Mol. Teratol.
PD MAR
PY 2009
VL 85
IS 3
BP 244
EP 244
PG 1
WC Developmental Biology; Toxicology
SC Developmental Biology; Toxicology
GA 426FU
UT WOS:000264694200035
ER
PT J
AU Su, FX
Huang, J
Xu, TF
Zhang, CJ
AF Su, Fenxian
Huang, Joe
Xu, Tengfang
Zhang, Congjun
TI An evaluation of the effects of various parameter weights on typical
meteorological years used for building energy simulation
SO BUILDING SIMULATION
LA English
DT Article
DE typical meteorological year (TMY); typical meteorological month (TMM);
energy use density; parameter weight; building simulation; weather data
AB In this paper, we evaluate the influence of different parameter weights in creating "typical year" weather data following the typical meteorological year (TMY) methodology, by studying two sets of 3600 alternate weather files created using different parameter weights for Beijing (China) and New York City (USA). A "typical year" weather file consists of twelve distinctive months, each considered typical for that month of the year. Such a typical month, named "typical meteorological month (TMM)," is commonly identified by using a certain combination of parameter weights, such as 4 : 4: 4: 12, for dry bulb temperature, dew point temperature, wind speed, and solar radiation as in the TMY weather files developed by US National Climate Data Center (NCDC), or 4: 4: 2: 10 in the newer TMY2 and TMY3 weather files developed by National Renewable Energy Laboratory (NREL). In this study, we investigate the influence of varying the parameter weights on the TMMs and the resultant new TMY weather files (nTMY). We found that the distribution of new 3600 TMMs tend to cluster within one or a few years for each month, and that the probabilities are very high for significant overlap between the new TMMs and the original TMMs chosen using the TMY/TMY2 weighting. Compared to the TMM data in TMY, the deviations of air temperatures and solar radiation values of the new TMMs and nTMYs derived from the 20-year weather data are less than 10% for both Beijing and New York. This confirms that the creation of " typical year" weather data is not very sensitive to the weighting of the different weather parameters, and that most nTMYs created and evaluated in this study are empirically close to the TMY data intended for use of simulating building energy consumption.
C1 [Su, Fenxian] Fac Urban Construct & Environm Engn, Chongqing 400045, Peoples R China.
[Huang, Joe] White Box Technol, Moraga, CA 94556 USA.
[Xu, Tengfang] Univ Calif Berkeley, Lawrence Berkeley Lab, Int Energy Studies Grp, Berkeley, CA 94720 USA.
[Zhang, Congjun] Chongqing Univ, Fac Construct Management & Real Estate, Chongqing 400045, Peoples R China.
RP Su, FX (reprint author), Fac Urban Construct & Environm Engn, Chongqing Univ Campus B, Chongqing 400045, Peoples R China.
EM sufenxian@yahoo.com.cn
FU American Society of Heating, Refrigerating and Air-Conditioning
Engineers (ASHRAE); China Chongqing Natural Science Foundation [1477-RP,
CSTC 008BB9044]
FX The authors wish to acknowledge the American Society of Heating,
Refrigerating and Air-Conditioning Engineers (ASHRAE) and China
Chongqing Natural Science Foundation for their support of this work in
ASHRAE Research Project 1477-RP and CSTC 008BB9044.
NR 14
TC 4
Z9 4
U1 0
U2 4
PU TSINGHUA UNIV PRESS
PI BEIJING
PA TSINGHUA UNIV, RM A703, XUEYAN BLDG, BEIJING, 10084, PEOPLES R CHINA
SN 1996-3599
J9 BUILD SIMUL-CHINA
JI Build. Simul.
PD MAR
PY 2009
VL 2
IS 1
BP 19
EP 28
DI 10.1007/S12273-009-9106-3
PG 10
WC Thermodynamics; Construction & Building Technology
SC Thermodynamics; Construction & Building Technology
GA V16RE
UT WOS:000207885900003
ER
PT J
AU Liberman, J
Roland, M
Thierry, S
Marjorie, F
Annick, MM
Aurelie, C
Jean-Marc, J
Nicole, G
AF Liberman, Julie
Roland, Meier
Thierry, Sengstag
Marjorie, Flahaut
Annick, Muehlethaler-Mottet
Aurelie, Coulon
Jean-Marc, Joseph
Nicole, Gross
TI The CXCL12/CXCR4/CXCR7 axis in human neuroblastoma: involvement in
malignant progression
SO BULLETIN DU CANCER
LA English
DT Meeting Abstract
C1 Univ Lausanne Hosp, Pediat Oncol Res Unit, Lausanne, Switzerland.
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
ISREC, Epalinges, Switzerland.
Swiss Inst Bioinformat, Epalinges, Switzerland.
Univ Lausanne Hosp, Pediat Surg Unit, Lausanne, Switzerland.
EM Julie.Liberman@chuv.ch
NR 0
TC 0
Z9 0
U1 0
U2 0
PU JOHN LIBBEY EUROTEXT LTD
PI MONTROUGE
PA 127 AVE DE LA REPUBLIQUE, 92120 MONTROUGE, FRANCE
SN 0007-4551
EI 1769-6917
J9 B CANCER
JI Bull. Cancer
PD MAR
PY 2009
VL 96
SI SI
MA 49
BP S41
EP S41
PG 1
WC Oncology
SC Oncology
GA V30JN
UT WOS:000208812400051
ER
PT J
AU Seidel, DJ
Berger, FH
Diamond, HJ
Dykema, J
Goodrich, D
Immler, F
Murray, W
Peterson, T
Sisterson, D
Sommer, M
Thorne, P
Vomel, H
Wang, J
AF Seidel, Dian J.
Berger, Franz H.
Diamond, Howard J.
Dykema, John
Goodrich, David
Immler, Franz
Murray, William
Peterson, Thomas
Sisterson, Douglas
Sommer, Michael
Thorne, Peter
Voemel, Holger
Wang, Junhong
TI REFERENCE UPPER-AIR OBSERVATIONS FOR CLIMATE Rationale, Progress, and
Plans
SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
LA English
DT Article
ID RADIOSONDE TEMPERATURE RECORDS; TRENDS; POINT
AB While the global upper-air observing network has provided useful observations for operational weather forecasting for decades, its measurements lack the accuracy and long-term continuity needed for understanding climate change. Consequently, the scientific community faces uncertainty on key climate issues, such as the nature of temperature trends in the troposphere and stratosphere; the climatology, radiative effects, and hydrological role of water vapor in the upper troposphere and stratosphere; and the vertical profile of changes in atmospheric ozone, aerosols, and other trace constituents. Radiosonde data provide adequate vertical resolution to address these issues, but they have questionable accuracy and time-varying biases due to changing instrumentation and techniques. Although satellite systems provide global coverage, their vertical resolution is sometimes inadequate and they require independent reference observations for sensor and data product validation, and for merging observations from different platforms into homogeneous climate records. To address these shortcomings, and to ensure that future climate records will be more useful than the records to date, the Global Climate Observing System (GCOS) program is initiating a GCOS Reference Upper-Air Network (GRUAN) to provide high-quality observations using specialized radiosondes and complementary remote sensing profiling instrumentation that can be used for validation. This paper outlines the scientific rationale for GRUAN, its role in the Global Earth Observation System of Systems, network requirements and likely instrumentation, management structure, current status, and future plans. It also illustrates the value of prototype reference upper-air observations in constructing climate records and their potential contribution to the Global Space-Based Inter-Calibration System. We invite constructive feedback on the GRUAN concept and the engagement of the scientific community.
C1 [Seidel, Dian J.] NOAA, Air Resources Lab, Silver Spring, MD 20910 USA.
[Berger, Franz H.; Immler, Franz; Sommer, Michael; Voemel, Holger] Meteorol Observatorium Lindenberg, Lindenberg, Germany.
[Diamond, Howard J.] NOAA, Natl Climat Data Center, World Data Ctr Meteorol, Silver Spring, MD USA.
[Dykema, John] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Goodrich, David] WMO, Global Climate Observing Programme, Geneva, Switzerland.
[Murray, William] STG Inc, NOAA, Climate Program Off, Silver Spring, MD USA.
[Peterson, Thomas] NOAA, Natl Climat Data Ctr, Asheville, NC USA.
[Sisterson, Douglas] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
[Thorne, Peter] Hadley Ctr, Met Off, Exeter, Devon, England.
[Wang, Junhong] Natl Ctr Atmospher Res, Earth Observing Lab, Boulder, CO 80307 USA.
RP Seidel, DJ (reprint author), NOAA, Air Resources Lab, 1315 E W Highway R ARL, Silver Spring, MD 20910 USA.
EM dian.seidel@noaa.gov
RI Thorne, Peter/F-2225-2014
OI Thorne, Peter/0000-0003-0485-9798
FU Joint Defra and MoD Programme, (Defra) [GA01101 (MoD), CBC/2B/0417_Annex
C5]
FX . We thank Jim Angell and Kirk Clawson (NOAA), David Parker (Met
Office), and an anonymous referee for constructive reviews of this
manuscript. NOAA, GCOS, and Deutscher Wetterdienst provided support for
GRUAN workshops. Stephanie Lorenz (GCOS Secretariat) assisted in
preparing the references, and Deborah Riddle (NOAA) helped in drafting
figures. PWT was supported by the Joint Defra and MoD Programme, (Defra)
GA01101 (MoD) CBC/2B/0417_Annex C5.
NR 40
TC 64
Z9 64
U1 1
U2 10
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0003-0007
EI 1520-0477
J9 B AM METEOROL SOC
JI Bull. Amer. Meteorol. Soc.
PD MAR
PY 2009
VL 90
IS 3
BP 361
EP 369
DI 10.1175/2008BAMS2540.1
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 430ZT
UT WOS:000265031800006
ER
PT J
AU Gschneidner, KA
Mudryk, Y
Becker, AT
Larson, JL
AF Gschneidner, K. A., Jr.
Mudryk, Ya.
Becker, A. T.
Larson, J. L.
TI The crystal structures of some RM and RM2 compounds (where R = rare
earth metal and M = non-rare earth metal)
SO CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
LA English
DT Article; Proceedings Paper
CT Seminar held in Memory of Riccardo Ferro
CY FEB, 2008
CL Genoa, ITALY
DE Crystal structures; YIn; YPd; YAu; (TbxDy1-x)Al-2
ID INTERMETALLIC COMPOUNDS; IN SYSTEM; YCU; YAG
AB The non-cubic crystal structures of YIn, YPd and YAu are reported for the first time. YIn has the disordered tetragonal L1(0) CuAu-type structure, and both YPd and YAu are isostructural with the orthorhombic B33 CrB - type structure. The lattice parameters for some C15 MgCu2-type phases (TbxDy1-x)Al-2 alloys (x = 0.25. 0.50. 0.75 and 1.0) have been measured and are found to vary linearly with composition between x = 0.25 and 1.0. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Gschneidner, K. A., Jr.; Mudryk, Ya.; Becker, A. T.; Larson, J. L.] Iowa State Univ, USDOE, Ames Lab, Ames, IA 50011 USA.
[Gschneidner, K. A., Jr.; Becker, A. T.; Larson, J. L.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Gschneidner, KA (reprint author), Iowa State Univ, USDOE, Ames Lab, Ames, IA 50011 USA.
EM cagey@ameslab.gov
NR 16
TC 3
Z9 3
U1 2
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0364-5916
J9 CALPHAD
JI Calphad-Comput. Coupling Ph. Diagrams Thermochem.
PD MAR
PY 2009
VL 33
IS 1
BP 8
EP 10
DI 10.1016/j.calphad.2008.07.008
PG 3
WC Thermodynamics; Chemistry, Physical; Materials Science,
Multidisciplinary; Metallurgy & Metallurgical Engineering
SC Thermodynamics; Chemistry; Materials Science; Metallurgy & Metallurgical
Engineering
GA 430RT
UT WOS:000265006900003
ER
PT J
AU Kaufman, L
Perepezko, JH
Hildal, K
Farmer, J
Day, D
Yang, N
Branagan, D
AF Kaufman, Larry
Perepezko, J. H.
Hildal, K.
Farmer, J.
Day, D.
Yang, N.
Branagan, D.
TI Transformation, stability and Pourbaix diagrams of high performance
corrosion resistant (HPCRM) alloys
SO CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
LA English
DT Article; Proceedings Paper
CT Seminar held in Memory of Riccardo Ferro
CY FEB, 2008
CL Genoa, ITALY
DE Transformation; Stability; Pourbaix diagrams
ID BULK METALLIC GLASSES; MO BASED ALLOYS; SYSTEM
AB Explicit descriptions of phase stability, transformation kinetics and corrosion behavior to predict behavior to predict and guide synthesis and application of amorphous iron alloys have been developed by coupling computational thermodynamics and databases derived from experimental studies. These studies provided measurements and observations made during extensive studies of synthesis, fabrication and analysis of iron alloy glasses. The salient results of this development for the most attractive alloys of this group of materials are presented below. (C) 2009 Published by Elsevier Ltd
C1 [Kaufman, Larry] CALPHAD Inc, Brookline, MA 02445 USA.
[Perepezko, J. H.; Hildal, K.] Univ Wisconsin, Madison, WI 53706 USA.
[Farmer, J.; Day, D.] Lawrence Livermore Labs, Livermore, CA USA.
[Yang, N.] Sandia Natl Labs, Livermore, CA USA.
RP Kaufman, L (reprint author), CALPHAD Inc, 140 Clark Rd, Brookline, MA 02445 USA.
EM larrykaufman@rcn.com
NR 24
TC 13
Z9 13
U1 1
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0364-5916
J9 CALPHAD
JI Calphad-Comput. Coupling Ph. Diagrams Thermochem.
PD MAR
PY 2009
VL 33
IS 1
BP 89
EP 99
DI 10.1016/j.calphad.2008.09.019
PG 11
WC Thermodynamics; Chemistry, Physical; Materials Science,
Multidisciplinary; Metallurgy & Metallurgical Engineering
SC Thermodynamics; Chemistry; Materials Science; Metallurgy & Metallurgical
Engineering
GA 430RT
UT WOS:000265006900016
ER
PT J
AU Tsetseris, L
Pantelides, ST
AF Tsetseris, L.
Pantelides, S. T.
TI Adatom complexes and self-healing mechanisms on graphene and single-wall
carbon nanotubes
SO CARBON
LA English
DT Article
ID TRANSPORT-PROPERTIES; GRAPHITE SURFACES; AB-INITIO; DEFECTS; ADSORPTION;
BUNDLES; ENERGY
AB Point defects play a role in the functionalization, chemical activation, carrier transport, and nano-engineering of graphitic systems. Here, we use first-principles calculations to describe several processes that alter the properties of graphene and single-wall carbon nanotubes (SWCNTs) in the presence of self-interstitials (SI's). We find that, while two or four SI's are stabilized in hillock-like structures that stay idle unless the system is heated to very high temperatures, clustering of three C adatoms leads to the formation of mobile protrusions on graphene and large enough SWCNTs. For different SI concentrations and SWCNT size, the interplay between mobile and immobile species may favor one of the two competing processes, self-healing or formation of adatom. superstructures. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Tsetseris, L.] Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece.
[Tsetseris, L.; Pantelides, S. T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA.
[Pantelides, S. T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Tsetseris, L (reprint author), Aristotle Univ Thessaloniki, Dept Phys, GR-54124 Thessaloniki, Greece.
EM tsetser@auth.gr
FU Vanderbilt University; DOE [DEFG0203ER46096]
FX This work was supported by the William A. and Nancy F. McMinn Endowment
at Vanderbilt University, and by DOE Grant No. DEFG0203ER46096. The
calculations were performed at ORNL's Center for Computational Sciences.
NR 36
TC 49
Z9 49
U1 5
U2 46
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 MAR
PY 2009
VL 47
IS 3
BP 901
EP 908
DI 10.1016/j.carbon.2008.12.002
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 411BS
UT WOS:000263623400045
ER
PT J
AU Grass, M
Rioux, R
Somorjai, G
AF Grass, Michael E.
Rioux, Robert M.
Somorjai, Gabor A.
TI Dependence of Gas-Phase Crotonaldehyde Hydrogenation Selectivity and
Activity on the Size of Pt Nanoparticles (1.7-7.1 nm) Supported on
SBA-15
SO CATALYSIS LETTERS
LA English
DT Article
DE Crotonaldehyde; Hydrogenation; Platinum; Nanoparticles; Selectivity;
Decarbonylation
ID PLATINUM NANOPARTICLES; THERMAL-DECOMPOSITION; PARTICLE-SIZE; SHAPE
CONTROL; CATALYSTS; SILICA; ADSORPTION; CARBON; NANOCLUSTERS;
MONODISPERSE
AB The selectivity and activity for the hydrogenation of crotonaldehyde to crotyl alcohol and butyraldehyde was studied over a series of Pt nanoparticles (diameter of 1.7, 2.9, 3.6, and 7.1 nm). The nanoparticles were synthesized by alcohol reduction of a Pt salt in the presence of poly(vinylpyrrolidone) (PVP), followed by incorporation into mesoporous SBA-15 silica. The rate of crotonaldehyde hydrogenation and selectivity towards crotyl alcohol both increase with increasing particle size. With an increase in particle size from 1.7 nm to 7.1 nm, the selectivity towards crotyl alcohol increases from 13.7% to 33.9% (8 Torr crotonaldehyde, 160 Torr H(2) and 353 K). The turnover frequency increases from 2.1 x 10(-2) s(-1) to 4.8 x 10(-2) s(-1) with increasing particle size. Additionally, the decarbonylation pathway to form propene and CO is enhanced over smaller nanoparticles. The apparent activation energy remains constant (similar to 16 kcal mol(-1) for the formation of butyraldehyde and similar to 8 kcal mol(-1) for the formation of crotyl alcohol) as a function of particle size as does the reaction order in H(2), which is unity. In the presence of 130-260 mTorr CO, the reaction rate decreases for all products with a CO reaction order of -1 to -1.4 for crotyl alcohol and butyraldehyde. Hydrogen reduction at 673-723 K results in increased activity and selectivity relative to reduction at either higher or lower temperature; this is discussed with respect to the organic capping agent, PVP.
C1 [Grass, Michael E.; Rioux, Robert M.; Somorjai, Gabor A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Grass, Michael E.; Rioux, Robert M.; Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
RP Somorjai, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM somorjai@berkeley.edu
FU Director, Office of Science, Office of Basic Energy Sciences, Division
of Chemical Sciences, Geological and Biosciences [DE-AC03-76SF00098];
Director, Office of Science, Office of Basic Energy Sciences, Division
of Materials Sciences and Engineering [DE-AC02-05CH11231]
FX This work was supported by the Director, Office of Science, Office of
Basic Energy Sciences, Division of Chemical Sciences, Geological and
Biosciences of the U. S. Department of Energy under Contract No.
DE-AC03-76SF00098. This work was also supported by the Director, Office
of Science, Office of Basic Energy Sciences, Division of Materials
Sciences and Engineering of the U. S. Department of Energy under
Contract No. DE-AC0205CH11231.
NR 30
TC 56
Z9 57
U1 11
U2 44
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1011-372X
J9 CATAL LETT
JI Catal. Lett.
PD MAR
PY 2009
VL 128
IS 1-2
BP 1
EP 8
DI 10.1007/s10562-008-9754-4
PG 8
WC Chemistry, Physical
SC Chemistry
GA 403GI
UT WOS:000263070700001
ER
PT J
AU Khan, MI
Deb, S
Marshall, CL
AF Khan, M. Ishaque
Deb, Sangita
Marshall, Christopher L.
TI Vanadium Oxide Based Nanostructured Materials: Novel Oxidative
Dehydrogenation Catalysts
SO CATALYSIS LETTERS
LA English
DT Article
DE Oxidative; Dehydrogenation; Catalysis; Propylene; Framework solid;
Polyoxometalates; DRIFTS
ID MG-O CATALYSTS; FRAMEWORK MATERIALS; ACRYLIC-ACID; MIXED OXIDES;
GAS-PHASE; PROPANE; ALKANES; CLUSTERS; ETHANE; BUTANE
AB Novel vanadium oxide based catalyst derived from he open-framework solid, [Co(3)V(18)O(42)(H(2)O)(12)(XO(4))] center dot 24 H(2)O (X = V, S) (1) catalyses oxidative dehydrogenation of propane to propylene. Catalyst activity was evaluated in the temperature range 250-400 degrees C with varying gas hourly space velocity (GHSV). At 350 degrees C and GHSV of 9786 h(-1) and at 1.3% propane conversion the selectivity to propylene was 36.8%. The major products obtained were propylene and CO(x)(CO(2) and CO). The ratio of the propylene to CO(x) depended directly on the catalytic sites present. Thus, as the amount of the catalyst was decreased, the conversion decreased with an increase in the propylene selectivity and a decrease in the selectivity to carbon oxides-CO(x). The catalyst has been characterized by temperature programmed reduction and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS).
C1 [Khan, M. Ishaque; Deb, Sangita] IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA.
[Marshall, Christopher L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
RP Khan, MI (reprint author), IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA.
EM khan@iit.edu
RI Marshall, Christopher/D-1493-2015
OI Marshall, Christopher/0000-0002-1285-7648
NR 44
TC 12
Z9 12
U1 1
U2 17
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1011-372X
J9 CATAL LETT
JI Catal. Lett.
PD MAR
PY 2009
VL 128
IS 3-4
BP 256
EP 262
DI 10.1007/s10562-008-9701-4
PG 7
WC Chemistry, Physical
SC Chemistry
GA 409ML
UT WOS:000263509700002
ER
PT J
AU Park, G
Choi, CK
English, AE
Sparer, TE
AF Park, Giljun
Choi, Chang K.
English, Anthony E.
Sparer, Tim E.
TI Electrical impedance measurements predict cellular transformation
SO CELL BIOLOGY INTERNATIONAL
LA English
DT Article
DE Impedance; Transformation; CXCR2; Cancer; ECIS; GPCR
ID TISSUE-CULTURE; CELLS; ASSAY; RESISTANCE; MUTATION; BEHAVIOR; MONITOR
AB Cellular transformation is the first step in cancer development. Two features of cellular transformation are proliferation in reduced serum and loss of contact inhibition. Electronic Cell-Substrate Impedance Sensing (ECIS) measurements have been used to measure cellular proliferation, cytotoxicity, apoptosis, and attachment. We have used impedance measurements to distinguish normal cells from cells transformed with a constitutively active chemokine receptor, CXCR2. CXCR2, a member of the G-protein coupled receptor (GPCR) family, is normally involved in cellular activation and migration, but a single amino acid substitution leads to constitutive activity. NIH3T3 cells were transformed with a constitutively active CXCR2 (D143V_CXCR2) and growth in reduced serum and foci formation were measured using established biological assays and compared to data from ECIS. The results of this study show that impedance measurements provide a quick and reliable way of measuring cellular transformation and provide real time assessment of transformed cellular parameters. Use of the ECIS system could allow a rapid screening of anti-cancer drugs that alter cellular transformation. (C) 2009 International Federation for Cell Biology. Published by Elsevier Ltd. All rights reserved.
C1 [Park, Giljun; Sparer, Tim E.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA.
[Choi, Chang K.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[English, Anthony E.] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA.
RP Sparer, TE (reprint author), Univ Tennessee, Dept Microbiol, 1414 Cumberland Ave,Walters Life Sci Bldg, Knoxville, TN 37996 USA.
EM tsparer@utk.edu
OI Sparer, Tim/0000-0002-5543-6691
FU Elsa Pardee Foundation; National Science Foundation [BES-0238905]
FX This work was supported by the Elsa Pardee Foundation (GP, TES) and in
part by a National Science Foundation CAREER Award BES-0238905 (AEE).
NR 30
TC 13
Z9 14
U1 0
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1065-6995
J9 CELL BIOL INT
JI Cell Biol. Int.
PD MAR
PY 2009
VL 33
IS 3
BP 429
EP 433
DI 10.1016/j.cellbi.2009.01.013
PG 5
WC Cell Biology
SC Cell Biology
GA 414UH
UT WOS:000263890200023
PM 19356706
ER
PT J
AU Pennisi, CP
Jensen, PE
Zachar, V
Greenbaum, E
Yoshida, K
AF Pennisi, Cristian Pablo
Jensen, Poul Erik
Zachar, Vladimir
Greenbaum, Elias
Yoshida, Ken
TI Incorporation of Photosynthetic Reaction Centers in the Membrane of
Human Cells: Toward a New Tool for Optical Control of Cell Activity
SO CELLULAR AND MOLECULAR BIOENGINEERING
LA English
DT Article
DE Photosystem I; Proteoliposomes; Immunofluorescence microscopy;
Heterologous incorporation; Adipose stem cells
ID MESENCHYMAL STEM-CELLS; PHOTOSYSTEM-I; MAMMALIAN-CELLS; LIPID VESICLES;
REMOTE-CONTROL; ION CHANNELS; LIPOSOMES; FUSION; FLUORESCENCE; COMPLEX
AB The Photosystem I (PSI) reaction center is a photosynthetic membrane complex in which light-induced charge separation is accompanied by the generation of an electric potential. It has been recently proposed as a means to confer light sensitivity to cells possessing voltage-activated ion channels, but the feasibility of heterologous incorporation has not been demonstrated. In this work, methods of delivery and detection of PSI in the membrane of human cells are presented. Purified fractions of PSI were reconstituted in proteoliposomes that were used as vehicles for the membrane incorporation. A fluorescent impermeable dye was entrapped in the vesicles to qualitatively analyze the nature of the vesicle-cell interaction. After incorporation, the localization and orientation of the complexes in the membrane was studied using immuno-fluorescence microscopy. The results showed complexes oriented as in native membranes, which were randomly distributed in clusters over the entire surface of the cell. Additionally, analysis of cell viability showed that the incorporation process does not damage the cell membrane. Taken together, the results of this work suggest that the mammalian cellular membrane is a reasonable environment for the incorporation of PSI complexes, which opens the possibility of using these molecular photovoltaic structures for optical control of cell activity.
C1 [Pennisi, Cristian Pablo; Yoshida, Ken] Univ Aalborg, Dept Hlth Sci & Technol, Ctr Sensory Motor Interact SMI, DK-9220 Aalborg, Denmark.
[Jensen, Poul Erik] Univ Copenhagen, VKR Res Ctr Pro Act Plants, Plant Mol Biol Lab, Dept Plant Biol & Biotechnol, Frederiksberg C, Denmark.
[Zachar, Vladimir] Univ Aalborg, Dept Hlth Sci & Technol, Lab Stem Cell Res, DK-9220 Aalborg, Denmark.
[Greenbaum, Elias] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Yoshida, Ken] Indiana Univ Purdue Univ, Dept Biomed Engn, Indianapolis, IN 46202 USA.
RP Pennisi, CP (reprint author), Univ Aalborg, Dept Hlth Sci & Technol, Ctr Sensory Motor Interact SMI, Fredrik Bajers Vej 7 D3, DK-9220 Aalborg, Denmark.
EM cpennisi@hst.aau.dk
RI Pennisi, Cristian/B-6878-2008; Jensen, Poul Erik/A-4862-2014
OI Pennisi, Cristian/0000-0002-7716-1182; Jensen, Poul
Erik/0000-0001-6524-7723
FU Danish Research Agency; Danish Natural Science Research Council
[272-05-0360]; Sygekassernes Helsefond (Denmark); Office of Biological
and Environmental Research, U.S. Department of Energy
[DE-AC05-00OR22725]
FX We wish to thank Helle Skjodt for her assistance in the cell culture
procedures and also Cristian Sevcencu for his valuable comments and
suggestions. This work was supported in part by the Danish Research
Agency, the Danish Natural Science Research Council (272-05-0360), the
Sygekassernes Helsefond (Denmark), and the Office of Biological and
Environmental Research, U.S. Department of Energy. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC for the U. S. Department of
Energy under Contract No. DE-AC05-00OR22725.
NR 40
TC 4
Z9 4
U1 1
U2 9
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1865-5025
J9 CELL MOL BIOENG
JI Cell. Mol. Bioeng.
PD MAR
PY 2009
VL 2
IS 1
BP 156
EP 165
DI 10.1007/s12195-008-0040-8
PG 10
WC Cell & Tissue Engineering; Biophysics; Cell Biology
SC Cell Biology; Biophysics
GA 494OF
UT WOS:000269822400015
ER
PT J
AU Chen, T
Neville, A
Sorbie, K
Zhong, Z
AF Chen, Tao
Neville, Anne
Sorbie, Ken
Zhong, Zhong
TI In-situ monitoring the inhibiting effect of polyphosphinocarboxylic acid
on CaCO3 scale formation by synchrotron X-ray diffraction
SO CHEMICAL ENGINEERING SCIENCE
LA English
DT Article
DE Calcium carbonate; Deposition; X-ray diffraction;
Polyphosphinocarboxylic acid
ID PRECIPITATION; DEPOSITION; KINETICS; GROWTH; MG2+
AB The formation of calcium carbonate mineral scale is a persistent and expensive problem in oil and gas production. The aim of this paper is to further the understanding of scale formation and inhibition by in-situ probing of crystal growth by synchrotron radiation wide angle X-ray scattering (WAXS) in the absence and presence of polyphosphinocarboxylic acid (PPCA) scale inhibitor. This technique offers an exciting prospect for the study of scaling.
It has been shown that the nucleation and growth of various calcareous polymorphs and their individual crystal planes can be followed in real-time and from this the following conclusions are reached:
The process of scale depositing on the surface can be divided into an unstable phase and a stable phase.
PPCA lengthens the induction time of the surface deposition process.
PPCA suppresses calcite formation and results in vaterite-dominated scale.
PPCA causes a change of lattice parameter for both calcite and vaterite crystals. The c-axis of unit cell increases and the a-axis and b-axis of unit cell decrease. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Chen, Tao; Neville, Anne] Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England.
[Sorbie, Ken] Heriot Watt Univ, Dept Petr Engn, Edinburgh EH14 4AS, Midlothian, Scotland.
[Zhong, Zhong] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Neville, A (reprint author), Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England.
EM a.neville@leeds.ac.uk
OI SORBIE, KENNETH/0000-0002-6481-1529
FU Brookhaven National Laboratory; FAST II joint Industry Project
FX We thank Brookhaven National Laboratory for the support and the beam
time provision for these experiments and the sponsors of the FAST II
joint Industry Project for their financial support for T. Chen.
NR 19
TC 14
Z9 16
U1 1
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0009-2509
J9 CHEM ENG SCI
JI Chem. Eng. Sci.
PD MAR 1
PY 2009
VL 64
IS 5
BP 912
EP 918
DI 10.1016/j.ces.2008.09.036
PG 7
WC Engineering, Chemical
SC Engineering
GA 413DV
UT WOS:000263774000011
ER
PT J
AU Smallwood, HS
Lopez-Ferrer, D
Eberlein, PE
Watson, DJ
Squier, TC
AF Smallwood, Heather S.
Lopez-Ferrer, Daniel
Eberlein, P. Elis
Watson, David J.
Squier, Thomas C.
TI Calmodulin Mediates DNA Repair Pathways Involving H2AX in Response to
Low-Dose Radiation Exposure of RAW 264.7 Macrophages
SO CHEMICAL RESEARCH IN TOXICOLOGY
LA English
DT Article
ID STRAND-BREAK REPAIR; PROTEIN-KINASE-C; NITRIC-OXIDE SYNTHASE; CELL-CYCLE
ARREST; FACTOR-KAPPA-B; IONIZING-RADIATION; DAMAGE-RESPONSE;
RADIOADAPTIVE RESPONSE; RAW-264.7 MACROPHAGES; MAMMALIAN-CELLS
AB Understanding the molecular mechanisms that modulate macrophage radioresistance is necessary for the development of effective radiation therapies, as tumor-associated macrophages promote both angiogenesis and matrix remodeling that, in turn, enhance tumor metastasis. In this respect, we have identified a dose-dependent increase in the abundance (i.e., expression level) of the calcium regulatory protein calmodulin (CaM) in RAW 264.7 macrophages upon irradiation. At low doses of irradiation there are minimal changes in the abundance of other cellular proteins detected using mass spectrometry, indicating that increases in CaM levels are part of a specific radiation-dependent cellular response. Cam overexpression results in increased macrophage survival following radiation exposure, acting to diminish the sensitivity to low-dose radiation exposures. Following macrophage irradiation, increases in CaM abundance also result in an increase in the number of phosphorylated histone H2AX foci, associated with DNA repair, with no change in the extent of double-stranded DNA damage. In comparison, when nuclear factor kappa B (NF kappa B)-dependent pathways are inhibited, through the expression of a dominant-negative I kappa B construct, there is no significant increase in phosphorylated histone H2AX foci upon irradiation. These results indicate that the molecular basis for the up-regulation of histone H2AX-mediated DNA repair pathways is not the result of nonspecific NF kappa B-dependent pathways or a specific threshold of DNA damage. Rather, increases in CaM abundance act to minimize the low-dose hypersensitivity to radiation by enhancing macrophage radioresistance through processes that include the up-regulation of DNA repair pathways involving histone H2AX phosphorylation.
C1 Washington State Univ Tri Cities, Richland, WA 99352 USA.
Pacific NW Natl Lab, Div Biol Sci, Cell Biol & Biochem Grp, Richland, WA 99352 USA.
RP Smallwood, HS (reprint author), St Jude Childrens Hosp, 332 N Lauderdale St, Memphis, TN 38105 USA.
EM Heather.Smallwood@StJude.org
NR 71
TC 5
Z9 5
U1 0
U2 2
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0893-228X
J9 CHEM RES TOXICOL
JI Chem. Res. Toxicol.
PD MAR
PY 2009
VL 22
IS 3
BP 460
EP 470
DI 10.1021/tx800236r
PG 11
WC Chemistry, Medicinal; Chemistry, Multidisciplinary; Toxicology
SC Pharmacology & Pharmacy; Chemistry; Toxicology
GA 420SY
UT WOS:000264310700009
PM 19193191
ER
PT J
AU Rogers, MR
Stringfellow, WT
AF Rogers, Mathew R.
Stringfellow, William T.
TI Partitioning of chlorpyrifos to soil and plants in vegetated
agricultural drainage ditches
SO CHEMOSPHERE
LA English
DT Article
DE Pesticide; BMP; Non-point; Adsorption; Wetland; Vegetated-ditch
ID ORGANIC-MATTER; PESTICIDES; SORPTION; WATER; ADSORPTION
AB Constructed wetlands and vegetated agricultural drainage ditches (VADD) have been proposed as structural best management practices for the mitigation of chlorpyrifos contamination in agriculturally dominated watersheds. Sorption to soil and submergent aquatic plants has been measured as an important sink for chlorpyrifos; however, sorption to emergent plants has not been well characterized. Sorption isotherms for two soils and five emergent plants were determined by batch equilibrium technique. Sorption to whole plant stems (K(d) = 570-1300 L kg(-1)) was more than 10 times higher than to soil (K(d) = 40-71 L kg(-1)). Chopped plant material had K(d) values 7.6-96.2% greater than whole stems. Wetland plants with high internal surface area due to porous tissues had greater linear partitioning coefficients than terrestrial plants with a hollow structure. Chlorpyrifos sorption reached pseudo-equilibrium rapidly, indicating that partitioning will be an important mechanism in vegetated natural treatment systems for mitigating peak concentrations in surface waters and allowing time for attenuation by slower degradation reactions. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Rogers, Mathew R.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Rogers, Mathew R.; Stringfellow, William T.] Univ Pacific, Environm Engn Res Program, Stockton, CA 95211 USA.
[Rogers, Mathew R.; Stringfellow, William T.] Lawrence Berkeley Natl Lab, Ctr Environm Biotechnol, Berkeley, CA USA.
RP Rogers, MR (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, 1 Cyclotron Rd,MS 70A-3317, Berkeley, CA 94720 USA.
EM mrrogers@berkeley.edu
RI Stringfellow, William/O-4389-2015
OI Stringfellow, William/0000-0003-3189-5604
FU State Water Resources Control Board; California Department of Pesticide
Regulation; Surface Water Protection Program; Ecological Engineering
Research Program at the University of the Pacific
FX This work was supported by the State Water Resources Control Board.
Manuscript preparation was supported by the California Department of
Pesticide Regulation, Surface Water Protection Program. We thank Dr.
Steven Ruzin and Dr. Denise Schichnes of the UC Berkeley Biological
Image Facility for their assistance in plan image acquisition and
analysis, Jeremy Hanlon and Justin Graham of the gEcological Engineering
Research Program at the University of the Pacific for their assistance
with sample collection, and Ekrem Karpuzcu for assistance with
laboratory analysis.
NR 23
TC 34
Z9 36
U1 2
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-6535
J9 CHEMOSPHERE
JI Chemosphere
PD MAR
PY 2009
VL 75
IS 1
BP 109
EP 114
DI 10.1016/j.chemosphere.2008.11.036
PG 6
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 430RN
UT WOS:000265006300015
PM 19103452
ER
PT J
AU Zhu, SJ
Hamilton, JH
Ramayya, AV
Hwang, JK
Rasmussen, JO
Luo, YX
Li, K
Wang, JG
Che, XL
Ding, HB
Frauendorf, S
Dimitrov, V
Qiang, X
Long, O
Yang, YY
AF Zhu Sheng-Jiang
Hamilton, J. H.
Ramayya, A. V.
Hwang, J. K.
Rasmussen, J. O.
Luo, Y. X.
Li, K.
Wang Jian-Guo
Che Xing-Lai
Ding Huai-Bo
Frauendorf, S.
Dimitrov, V.
Qiang, Xu
Long, Gu
Yang Yun-Yi
TI Search for chiral bands in A similar to 110 neutron-rich nuclei
SO CHINESE PHYSICS C
LA English
DT Article
DE nuclear structure; high spin states; triaxiality; chiral doublet bands
ID SPONTANEOUS FISSION; ARRAYS; MO-106
AB High spin states in A similar to 110 neutron-rich (106)Mo, (110)Ru and (112)Ru nuclei have been reinvestigated by measuring the prompt gamma-rays from the spontaneous fission of (252)Cf. Two similar sets of bands are observed to high spins in each of three nuclei. Through analyzing of characters of the band structures, the chiral doublet bands are suggested in (106)Mo, (110)Ru and (112)Ru.
C1 [Zhu Sheng-Jiang; Wang Jian-Guo; Che Xing-Lai; Ding Huai-Bo; Qiang, Xu; Long, Gu; Yang Yun-Yi] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Luo, Y. X.; Li, K.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Rasmussen, J. O.; Luo, Y. X.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Frauendorf, S.; Dimitrov, V.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP Zhu, SJ (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
EM zhushj@mail.tsinghua.edu.cn
FU National Natural Science Foundation of China [10575057, 10775078]; Major
State Basic Research Development program [2007CB3815005]; Special
program of Higher Education Science Foundation [20070003149]; U.S.
Department of Energy [DE-FG05-88ER40407, DE-AC03-76SF00098]
FX Supported by National Natural Science Foundation of China (10575057,
10775078), Major State Basic Research Development program
(2007CB3815005), Special program of Higher Education Science Foundation
(20070003149), and U.S. Department of Energy (DE-FG05-88ER40407,
DE-AC03-76SF00098)
NR 12
TC 1
Z9 1
U1 0
U2 4
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
BP 145
EP 147
PG 3
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200046
ER
PT J
AU Ding, HB
Zhu, SJ
Hamilton, JH
Ramayya, AV
Hwang, JK
Li, K
Liu, SH
Luo, YX
Rasmussen, JO
Goodin, CT
Lee, IY
Wang, JG
Che, XL
Gu, L
AF Ding Huai-Bo
Zhu Sheng-Jiang
Hamilton, J. H.
Ramayya, A. V.
Hwang, J. K.
Li, K.
Liu, S. H.
Luo, Y. X.
Rasmussen, J. O.
Goodin, C. T.
Lee, I. Y.
Wang Jian-Guo
Che Xing-Lai
Gu Long
TI Extended collective bands in neutron-rich Ru-109
SO CHINESE PHYSICS C
LA English
DT Article
DE collective levels; gamma-transitions and level energies; neutron-rich
nucleus; spontaneous fission
ID HIGH-SPIN; ROTATIONAL BANDS; NUCLEUS; FISSION; MO-106; STATES
AB Levels in the neutron-rich Ru-109 have been studied by observing the prompt gamma-rays following the spontaneous fission fragments of Cf-252. The ground state band and the negative parity bands have been confirmed and extended. A positive parity band with the band head level at 332.5 keV is newly identified and suggested as a single-neutron excitation band built on the 7/2(+)[404] Nilsson orbital.Some structural characteristics of these bands are discussed.
C1 [Ding Huai-Bo; Zhu Sheng-Jiang; Wang Jian-Guo; Che Xing-Lai; Gu Long] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Zhu Sheng-Jiang; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Li, K.; Liu, S. H.; Luo, Y. X.; Goodin, C. T.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Ding, HB (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
EM zhushj@mail.tsinghua.edu.cn
NR 25
TC 1
Z9 1
U1 0
U2 3
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
SU 1
BP 154
EP 157
PG 4
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200049
ER
PT J
AU Wang, JG
Zhu, SJ
Hamilton, JH
Ramayya, AV
Hwang, JK
Rasmussen, JO
Luo, YX
Li, K
Lee, IY
Ding, HB
Xu, Q
Gu, L
Yang, YY
AF Wang Jian-Guo
Zhu Sheng-Jiang
Hamilton, J. H.
Ramayya, A. V.
Hwang, J. K.
Rasmussen, J. O.
Luo, Y. X.
Li, K.
Lee, I. Y.
Ding Huai-bo
Xu Qiang
Gu Long
Yang Yun-Yi
TI Observation of a new rotational band in Nb-104 nucleus
SO CHINESE PHYSICS C
LA English
DT Article
DE high spin states; spontaneous fission; neutron-rich nucleus;
semi-decoupled band
ID NEUTRON-RICH; OCTUPOLE CORRELATIONS; ODD
AB The high spin states in neutron-rich Nb-104 have been investigated from study of prompt gamma-rays in spontaneous fission of Cf-252 with the Gammasphere detector array. A new rotational band has been identified for the first time. This band is proposed as a semi-decoupled band based on the configuration pi 5/2(-)[303]circle times nu 1/2(-)[541].
C1 [Wang Jian-Guo; Zhu Sheng-Jiang; Ding Huai-bo; Xu Qiang; Gu Long; Yang Yun-Yi] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Zhu Sheng-Jiang; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Rasmussen, J. O.; Luo, Y. X.; Li, K.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Luo, Y. X.; Lee, I. Y.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Wang, JG (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
EM zhushj@mail.tsinghua.edu.cn
NR 19
TC 1
Z9 1
U1 0
U2 4
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
SU 1
BP 158
EP 160
PG 3
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200050
ER
PT J
AU Jirimutu
Wang, HJ
Zhang, WN
Wong, CY
AF Jirimutu
Wang Hai-Jun
Zhang Wei-Ning
Wong, Cheuk-Yin
TI Meson spectra governed by the Fermi-Breit potential
SO CHINESE PHYSICS C
LA English
DT Article
DE meson spectra; Breit potential; quark model
ID RELATIVIZED QUARK-MODEL; CHROMODYNAMICS; SCATTERING
AB We calculate the meson mass spectra in a quark potential model by using the complete Fermi-Breit potential including the terms of orbit-orbit interaction, spin-orbit coupling, and tensor force interaction. We find that these terms give nontrivial contributions to the calculated meson spectra. The orbit-orbit coupling term may lead to an instability of the solution of the Schrodinger equation and should be regularized.
C1 [Jirimutu; Zhang Wei-Ning] Harbin Inst Technol, Dept Phys, Harbin 150006, Peoples R China.
[Wang Hai-Jun] Jilin Univ, Ctr Theoret Phys, Changchun 130023, Peoples R China.
[Wang Hai-Jun] Jilin Univ, Sch Phys, Changchun 130023, Peoples R China.
[Zhang Wei-Ning; Wong, Cheuk-Yin] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China.
[Wong, Cheuk-Yin] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Jirimutu (reprint author), Harbin Inst Technol, Dept Phys, Harbin 150006, Peoples R China.
EM weiningzh@hotmail.com
OI Wong, Cheuk-Yin/0000-0001-8223-0659
FU National Natural Science Foundation of China [10575024, 10775024]
FX Supported by National Natural Science Foundation of China (10575024,
10775024)
NR 25
TC 1
Z9 1
U1 0
U2 1
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
IS 3
BP 170
EP 176
DI 10.1088/1674-1137/33/3/002
PG 7
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 422CD
UT WOS:000264403700002
ER
PT J
AU Gu, L
Zhu, SJ
Hamilton, JH
Ramayya, AV
Hwang, JK
Luo, YX
Rasmussen, JO
Li, K
Lee, IY
Xu, Q
Che, XL
Wang, JG
Ding, HB
Yang, YY
AF Gu Long
Zhu Sheng-Jiang
Hamilton, J. H.
Ramayya, A. V.
Hwang, J. K.
Luo, Y. X.
Rasmussen, J. O.
Li, K.
Lee, I. Y.
Xu Qiang
Che Xing-Lai
Wang Jian-Guo
Ding Huai-Bo
Yang Yun-Yi
TI High spin states in neutron-rich Tc-106 nucleus
SO CHINESE PHYSICS C
LA English
DT Article
DE spontaneous fission; collective band; gamma-transition and level energy
ID BANDS; IDENTIFICATION; ISOTOPES; FISSION
AB The high spin states of the neutron-rich odd-odd Tc-106 nucleus have been reinvestigated by observing prompt gamma'-rays from the spontaneous fission of Cf-252. A previously known collective band is confirmed and expanded, and a new collective band is newly identified. Several levels in previous report in Tc-106 are reexamined and they belong to the members of a band in Tc-107. The total Routhian surface (TRS) calculations show that the Tc-106 has triaxial shape. The spins and parties as well as the configurations for these bands have been tentatively assigned according to the analysis of the angular momentum alignments.
C1 [Gu Long; Zhu Sheng-Jiang; Xu Qiang; Che Xing-Lai; Wang Jian-Guo; Ding Huai-Bo; Yang Yun-Yi] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Zhu Sheng-Jiang; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Luo, Y. X.; Li, K.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Luo, Y. X.; Rasmussen, J. O.; Lee, I. Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Gu, L (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
EM zhushj@mail.tsinghua.edu.cn
FU National Natural Science Foundation of China [10575057, 10775078]; Major
State Basic Research Development Program [2007CB815005]; Special Program
of Higher Education Science Foundation [20070003149]; U.S. Department of
Energy Energy [DE-FG05-88ER40407, DE-AC03-76SF00098]
FX Supported by National Natural Science Foundation of China (10575057,
10775078), Major State Basic Research Development Program
(2007CB815005), Special Program of Higher Education Science Foundation
(20070003149) and U.S. Department of Energy Energy (DE-FG05-88ER40407,
DE-AC03-76SF00098)
NR 17
TC 0
Z9 0
U1 0
U2 4
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
SU 1
BP 182
EP 184
PG 3
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200058
ER
PT J
AU Yang, YY
Zhu, SJ
Hamilton, JH
Ramayya, AV
Hwang, JK
Rasmussen, JO
Luo, YX
Li, K
Ding, HB
Wang, JG
Xu, Q
Gu, L
AF Yang Yun-Yi
Zhu Sheng-Jiang
Hamilton, J. H.
Ramayya, A. V.
Hwang, J. K.
Rasmussen, J. O.
Luo, Y. X.
Li, K.
Ding Huai-Bo
Wang Jian-Guo
Xu Qiang
Gu Long
TI High-spin states in neutron-rich Mo-102 nucleus
SO CHINESE PHYSICS C
LA English
DT Article
DE spontaneous fission; neutron-rich nucleus; gamma-band; quasi-particle
band
ID FISSION; BANDS
AB High-spin states in neutron-rich Mo-102 nucleus have been studied by measuring the prompt gamma-rays in the spontaneous fission of Cf-252. The previous level scheme has been updated and some new levels and transitions are identified. The one-phonon gamma-band is expanded and a band head level of the two-phonon gamma-band is proposed, The systematic characteristics of yrast bands, one-phonon gamma-bands, two-phonon gamma-bands and quasi-particle bands in Mo-102, Mo-104 and Mo-106 are discussed.
C1 [Yang Yun-Yi; Zhu Sheng-Jiang; Ding Huai-Bo; Wang Jian-Guo; Xu Qiang; Gu Long] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
[Zhu Sheng-Jiang; Hamilton, J. H.; Ramayya, A. V.; Hwang, J. K.; Rasmussen, J. O.; Luo, Y. X.; Li, K.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA.
[Luo, Y. X.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Yang, YY (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China.
EM zhushj@mail.tsinghua.edu.cn
FU National Natural Science Foundation of China [10575057, 10775078]; Major
State Basic Research Development Program [2007CB815005]; Special Program
of Higher Education Science Foundation [20070003149]; U.S. Department of
Energy [DE-FG05-88ER40407, DE-AC03-76SF00098]
FX Supported by National Natural Science Foundation of China (10575057,
10775078), Major State Basic Research Development Program
(2007CB815005), Special Program of Higher Education Science Foundation
(20070003149) and U.S. Department of Energy under Grant and Contract
Nos. DE-FG05-88ER40407, DE-AC03-76SF00098
NR 12
TC 0
Z9 0
U1 0
U2 3
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
SU 1
BP 199
EP 201
PG 3
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200064
ER
PT J
AU Zheng, YN
Zhou, DM
Matsuta, K
Mihara, M
Fukuda, M
Nishimura, D
Komurasaki, J
Ishikawa, D
Matsumiya, R
Nagatomo, T
Izumikawa, T
Takahashi, S
Hirano, H
Ohtsubo, T
Momota, S
Nojiri, Y
Kitagawa, A
Kanazawa, M
Torikoshi, M
Sato, S
Minamisono, T
Alonso, JR
Krebs, GF
Symons, TJM
Yuan, DQ
Zuo, Y
Fan, P
Suzuki, T
Zhang, XZ
Zhu, SY
AF Zheng Yong-Nan
Zhou Dong-Mei
Matsuta, K.
Mihara, M.
Fukuda, M.
Nishimura, D.
Komurasaki, J.
Ishikawa, D.
Matsumiya, R.
Nagatomo, T.
Izumikawa, T.
Takahashi, S.
Hirano, H.
Ohtsubo, T.
Momota, S.
Nojiri, Y.
Kitagawa, A.
Kanazawa, M.
Torikoshi, M.
Sato, S.
Minamisono, T.
Alonso, J. R.
Krebs, G. F.
Symons, T. J. M.
Yuan Da-Qing
Zuo Yi
Fan Ping
Suzuki, T.
Zhang Xi-Zhen
Zhu Sheng-Yun
TI Nuclear structure of proton-rich unstable nucleus P-28 studied by
g-factor measurement
SO CHINESE PHYSICS C
LA English
DT Article
DE P-28; beta-NMR; nuclear magnetic moment; exotic nuclei
AB Nuclear structure of proton-rich unstable nucleus P-28 has been studied by measuring its g-factor for the first time. The g-factor of P-28 (I-pi = 3(+,) T-1/2 = 270.3 ms) was measured by means of beta-NMR technique combined with the new polarization technique for charge exchange reaction product in the intermediate energy heavy ion collisions. The obtained g-factor of g=0.1028(27) is very much quenched from the Schmidt value. but is well reproduced by the shell model (+0.102). In connection with the magnetic. moment. of the mirror partner and the beta-ray transition probability, the orbital angular momenta and intrinsic spins of protons and neutrons have been determined as < l(p)> = 0.43(29), < l(n)> = 1.85(29), < S-p > = 0.28(4), and < S-n > = 0.44(4).
C1 [Zheng Yong-Nan; Zhou Dong-Mei; Yuan Da-Qing; Zuo Yi; Fan Ping; Zhang Xi-Zhen; Zhu Sheng-Yun] China Inst Atom Energy, Beijing 102413, Peoples R China.
[Matsuta, K.; Mihara, M.; Fukuda, M.; Nishimura, D.; Komurasaki, J.; Ishikawa, D.; Matsumiya, R.] Osaka Univ, Dept Phys, Osaka 5600043, Japan.
[Nagatomo, T.] RIKEN, Wako, Saitama 3510198, Japan.
[Izumikawa, T.] Niigata Univ, RI Ctr, Niigata 9518510, Japan.
[Takahashi, S.; Hirano, H.; Ohtsubo, T.] Niigata Univ, Dept Phys, Niigata 9502181, Japan.
[Momota, S.] Kochi Univ Technol, Kochi 7828502, Japan.
[Nojiri, Y.; Kitagawa, A.; Kanazawa, M.; Torikoshi, M.; Sato, S.] Natl Inst Radiol Sci, Inage Ku, Chiba 2638555, Japan.
[Minamisono, T.] Fukui Univ Technol, Fukui 9108505, Japan.
[Alonso, J. R.; Krebs, G. F.; Symons, T. J. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Suzuki, T.] Nihon Univ, Dept Phys, Tokyo 156, Japan.
RP Zheng, YN (reprint author), China Inst Atom Energy, POB 27550, Beijing 102413, Peoples R China.
EM zhusy@ciae.ac.cn
FU National Natural Science Foundation of China [10435010, 10505032]
FX Supported by National Natural Science Foundation of China (10435010,
10505032)
NR 8
TC 1
Z9 1
U1 1
U2 1
PU CHINESE PHYSICAL SOC
PI BEIJING
PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA
SN 1674-1137
J9 CHINESE PHYS C
JI Chin. Phys. C
PD MAR
PY 2009
VL 33
SU 1
BP 215
EP 217
PG 3
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 430JU
UT WOS:000264986200069
ER
PT J
AU Shahzad, F
Siddiqi, SA
Zhou, J
AF Shahzad, F.
Siddiqi, S. A.
Zhou, J.
TI Magnetic Behaviour of Sm2Co7/Fe/Sm2Co7, Nanocomposite Trilayers with Cr
and Ti Additions
SO CHINESE PHYSICS LETTERS
LA English
DT Article
ID EXCHANGE-SPRING MAGNETS; MULTILAYER FILMS; ALLOYS; FE; CO; ND
AB Trilayered Sm2Co7/Fe/Sm2Co7 spring exchange magnets are fabricated by dc magnetron sputtering on MgO substrates. Very thin layers (0.3-0.7 nm) of Cr and Ti are added at the interfaces of the two magnetic phases. The thickness of Sm2Co7 is kept at 20 nm and Fe at 6 nm while the thickness of Cr and Ti are varied as 0.3, 0.5, and 0.7 nm. The base pressure of sputtering chamber is kept below 10(-7) Torr and Ar pressure at 3-8mTorr. The samples are characterized by x-ray diffraction (XRD) and SQUID magnetometer. We report improvement in exchange coupling of nonacomposite magnets by addition of thin layers of Cr at interfaces.
C1 [Shahzad, F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Shahzad, F.; Siddiqi, S. A.] Univ Punjab, Ctr Solid State Phys, Lahore 54590, Pakistan.
[Zhou, J.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Shahzad, F (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM furrukh11@yahoo.com
OI Siddiqi, Saadat Anwar/0000-0002-9488-2627
FU Higher Education Commission of Pakistan; International Research Support
Initiative Program
FX Supported by the Higher Education Commission of Pakistan under
International Research Support Initiative Program.
NR 17
TC 6
Z9 7
U1 1
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0256-307X
J9 CHINESE PHYS LETT
JI Chin. Phys. Lett.
PD MAR
PY 2009
VL 26
IS 3
AR 037701
PG 3
WC Physics, Multidisciplinary
SC Physics
GA 410TN
UT WOS:000263601300070
ER
PT J
AU Molina, A
Murphy, JJ
Winter, F
Haynes, BS
Blevins, LG
Shaddix, CR
AF Molina, A.
Murphy, J. J.
Winter, F.
Haynes, B. S.
Blevins, L. G.
Shaddix, C. R.
TI Pathways for conversion of char nitrogen to nitric oxide during
pulverized coal combustion
SO COMBUSTION AND FLAME
LA English
DT Article
DE Coal; Char; Nitric oxide; Halogen
ID FLUIDIZED-BED COMBUSTION; FORMATION MECHANISM; NO; KINETICS; OXIDATION;
GASIFICATION; REACTIVITY; O-2; N2O; EMISSIONS
AB The conversion of nitrogen in char (char-N) to NO was studied both experimentally and computationally. In the experiments, pulverized coal char was produced from a U.S. high-volatile bituminous coal and burned in a dilute suspension at 1170 K, 1370 K and 1570 K, at an excess oxygen concentration of 8% (dry), with different levels of background NO. In some experiments, hydrogen bromide (HBr) was added to the vitiated air as a tool to alter the concentration of gas-phase radicals. During char combustion, low NO concentration and high temperature promoted the conversion of char-N to NO. HBr addition altered NO production in a way that depended on temperature. At 1170 K the presence of HBr increased NO production by 80%, whereas the addition of HBr decreased NO production at higher temperatures by 20%. To explain these results, three mechanistic descriptions of char-N evolution during combustion were evaluated with computational models that simulated (a) homogeneous chemistry in a plug-flow reactor with entrained particle combustion, and (b) homogeneous chemistry in the boundary layer surrounding a reacting particle. The observed effect of HBr on NO production could only be captured by a chemical mechanism that considered significant release of HCN from the char particle. Release of HCN also explained changes in NO production with temperature and NO concentration. Thus, the combination of experiments and simulations suggests that HCN evolution from the char during pulverized coal combustion plays an essential role in net NO production. (C) 2008 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
C1 [Molina, A.; Murphy, J. J.; Blevins, L. G.; Shaddix, C. R.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA.
[Winter, F.] Vienna Univ Technol, Inst Chem Engn, A-1060 Vienna, Austria.
[Haynes, B. S.] Univ Sydney, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia.
RP Molina, A (reprint author), Univ Nacl Colombia, Fac Mines, Dept Energy & Proc, Car 80 65-223, Medellin, Colombia.
EM amolinao@unal.edu.co
RI Haynes, Brian/I-2562-2013;
OI Haynes, Brian/0000-0002-2024-039X; Winter, Franz/0000-0001-9854-3836
FU U.S. Department of Energy through the National Energy Technology
Laboratory's Power Systems Advanced Research Program [DE-AC04-94AL85000]
FX The technical assistance of Sandians Dennis J. Morrison, Douglas D.
Scott and Leslee P. Gardizi during the experimental setup and Nancy Y.C.
Yang and Jeffrey M. Chames for the SEM analyses is acknowledged. This
research was sponsored by the U.S. Department of Energy through the
National Energy Technology Laboratory's Power Systems Advanced Research
Program, managed by Dr. Robert Romanosky. Susan Maley serves as the NETL
technical monitor for this project. 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 49
TC 30
Z9 38
U1 1
U2 30
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
EI 1556-2921
J9 COMBUST FLAME
JI Combust. Flame
PD MAR
PY 2009
VL 156
IS 3
BP 574
EP 587
DI 10.1016/j.combustflame.2008.11.012
PG 14
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 409JD
UT WOS:000263501100004
ER
PT J
AU Leemans, WP
Esarey, E
Geddes, CGR
Toth, C
Schroeder, CB
Nakamura, K
Gonsalves, AJ
Panasenko, D
Cormier-Michel, E
Plateau, GR
Lin, C
Bruhwiler, DL
Cary, JR
AF Leemans, Wim P.
Esarey, E.
Geddes, C. G. R.
Toth, Cs.
Schroeder, C. B.
Nakamura, K.
Gonsalves, A. J.
Panasenko, D.
Cormier-Michel, E.
Plateau, G. R.
Lin, C.
Bruhwiler, D. L.
Cary, J. R.
TI Progress on laser plasma accelerator development using transversely and
longitudinally shaped plasmas
SO COMPTES RENDUS PHYSIQUE
LA English
DT Article
DE Laser-driven electron acceleration
ID ELECTRON-BEAMS; INJECTION; PULSES
AB A summary of progress at Lawrence Berkeley National Laboratory is given on: (1) experiments on down-ramp injection; (2) experiments on acceleration in capillary discharge plasma channels; and (3) simulations of a staged laser wakefield accelerator (LWFA). Control of trapping in a LWFA using plasma density down-ramps produced electron bunches with absolute longitudinal and transverse momentum spreads more than ten times lower than in previous experiments (0.17 and 0.02 MeV/c FWHM, respectively) and with central momenta of 0.76 +/- 0.02 MeV/c, stable over a week of operation. Experiments were also carried out using a 40 TW laser interacting with a hydrogen-filled capillary discharge waveguide. For a 15 mm long, 200 mu m diameter capillary, quasi-monoenergetic bunches up to 300 MeV were observed. By detuning discharge delay from optimum guiding performance, self-trapping was found to be stabilized. For a 33 mm long, 300 mu m capillary, a parameter regime with high energy bunches, up to 1 GeV, was found. In this regime, peak electron energy was correlated with the amount of trapped charge. Simulations show that bunches produced on a down-ramp and injected into a channel-guided LWFA can produce stable beams with 0.2 MeV/c-class momentum spread at high energies. To cite this article: W.P. Leemans et al., C R. Physique 10 (2009). (C) 2009 Acadamie des sciences. Published by Elsevier Masson SAS. All rights reserved.
C1 [Leemans, Wim P.; Esarey, E.; Geddes, C. G. R.; Toth, Cs.; Schroeder, C. B.; Nakamura, K.; Gonsalves, A. J.; Panasenko, D.; Cormier-Michel, E.; Plateau, G. R.; Lin, C.] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Leemans, Wim P.; Esarey, E.; Nakamura, K.] Univ Nevada, Reno, NV 89557 USA.
[Plateau, G. R.] Ecole Polytech, F-91128 Palaiseau, France.
[Lin, C.] Peking Univ, Beijing 100871, Peoples R China.
[Bruhwiler, D. L.; Cary, J. R.] Tech X Corp, Boulder, CO 80303 USA.
[Cary, J. R.] Univ Colorado, Boulder, CO 80309 USA.
RP Leemans, WP (reprint author), Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM WPLeemans@lbl.gov
OI Schroeder, Carl/0000-0002-9610-0166
FU Office of Science; High Energy Physics; U.S. Department of Energy
[DE-AC02-05CH11231, DE-FC02-07ER41499, DE-FG02-06ER84484,
DE-FG03-95ER40926, DE-FG02-01ER41178, DE-FG02-03ER83857]; DOE SciDAC;
NERSC; ATLAS programs; National Science Foundation [0113907, 0614001]
FX This work was supported by the Director, Office of Science, High Energy
Physics, U.S. Department of Energy under contracts DE-AC02-05CH11231,
DE-FC02-07ER41499, DE-FG02-06ER84484, DE-FG03-95ER40926,
DE-FG02-01ER41178, DE-FG02-03ER83857, DOE SciDAC, NERSC, and ATLAS
programs, National Science Foundation contracts 0113907 and 0614001, and
DARPA. We appreciate the contributions of J. van Tilborg, D. Syversrud,
J. Wallig, and N. Ybarrolaza.
NR 27
TC 3
Z9 3
U1 1
U2 9
PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75724 PARIS, FRANCE
SN 1631-0705
J9 CR PHYS
JI C. R. Phys.
PD MAR-APR
PY 2009
VL 10
IS 2-3
BP 130
EP 139
DI 10.1016/j.crhy.2009.05.001
PG 10
WC Astronomy & Astrophysics; Physics, Multidisciplinary
SC Astronomy & Astrophysics; Physics
GA 463FB
UT WOS:000267414000004
ER
PT J
AU Almgren, AS
Bell, JB
Nonaka, A
Zingale, M
AF Almgren, Ann S.
Bell, John B.
Nonaka, Andy
Zingale, Michael
TI A New Low Mach Number Approach in Astrophysics
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
ID IA SUPERNOVA EXPLOSION; HYDROSTATIC ADJUSTMENT; MODEL; HYDRODYNAMICS;
DETONATION
AB Astrophysical flows typically span a broad range of length and time scales. Specialized numerical algorithms can exploit the relationships between these scales and significantly improve the efficiency of numerical simulations without loss of accuracy. The authors describe the process by which an understanding of the important processes in Type Ia supernovae is guiding the development of new algorithms to model these phenomena.
C1 [Almgren, Ann S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Comp Res Dept, Berkeley, CA 94720 USA.
[Bell, John B.; Nonaka, Andy] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA.
[Zingale, Michael] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY USA.
RP Almgren, AS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Comp Res Dept, Berkeley, CA 94720 USA.
EM asalmgren@lbl.gov; jbbell@lbl.gov; ajnonaka@lbl.gov;
mzingale@mail.astro.sunysb.edu
OI Zingale, Michael/0000-0001-8401-030X
FU US Department of Energy's (DOE's) Office of Mathematics, Information,
and Computational Sciences [DE- AC02- 05CH11231]; DOE Office of Nuclear
Physics Outstanding Junior Investigator award [DEFG0206ER41448]; DOE's
Office of Science [DE-AC05-00OR22725]
FX This work was supported by the SciDAC Program of the US Department of
Energy's (DOE's) Office of Mathematics, Information, and Computational
Sciences under contract number DE- AC02- 05CH11231 and by a DOE Office
of Nuclear Physics Outstanding Junior Investigator award, grant number
DEFG0206ER41448, to Stony Brook. The Flash Code, developed in part by
the DOE- supported Advanced Simulation and Computing (ASC) Flash Center
at the University of Chicago, was used for Figure 2. We implemented a
new compressible solver in Flash for that comparison. We thank Stan
Woosley for providing us with the 1D initial white dwarf model. Computer
time for this project was provided through a DOE INCITE award at the
National Center for Computational Sciences at Oak Ridge National
Laboratory, which is supported by the DOE's Office of Science under
contract number DE-AC05-00OR22725.
NR 23
TC 0
Z9 0
U1 0
U2 11
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD MAR-APR
PY 2009
VL 11
IS 2
BP 24
EP 33
PG 10
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA 409SR
UT WOS:000263526600006
ER
PT J
AU Lillard, RS
Kolman, DG
Hill, MA
Prime, MB
Veirs, DK
Worl, LA
Zapp, P
AF Lillard, R. S.
Kolman, D. G.
Hill, M. A.
Prime, M. B.
Veirs, D. K.
Worl, L. A.
Zapp, P.
TI Assessment of Corrosion-Based Failure in Stainless Steel Containers Used
for the Long-Term Storage of Plutonium-Based Salts (Reprinted from
Proceedings of the CORROSION/2008 Research Topical Symposium)
SO CORROSION
LA English
DT Reprint
DE pitting corrosion; plutonium-based salts; stainless steel
ID MECHANICAL-PROPERTIES; IRRADIATION
AB This paper summarizes our efforts to assess corrosion-related failure in stainless steel long-term storage containers bearing plutonium oxides and electrorefining salts, Pitting corrosion of the internal can wall is believed to occur when these salt particles deliquesce forming the electrolyte necessary for corrosion-electrochemistry. Extrapolation of pit depths from coupon studies using generalized extreme value (GEV) statistics found that the probability of a through-wall corrosion pit Is finite: the maximum pit depth after 50 years would be on the order of 1.7 mm where the container wall is only 1.6 mm thick. To assess susceptibility to environmental cracking fracture toughness (J(1C)), experiments were used in conjunction with a J-integral diagram constructed using the GE/EPRI method for linear elastic-plastic materials. As a part of this analysts, the residual stress associated with the weld was measured using the laser contour method. The hoop stress In the weld region was found to be on the order of 135 MPa to 180 MPa. Assuming that the axial stress that results from the weld is equal to one half of the hoop stress (sigma(ax) = sigma(h)/2) and our laboratory measurement of J(1C) is accurate, one would conclude there is sufficient energy associated with the weld to propagate a crack in the container.
C1 [Lillard, R. S.; Kolman, D. G.; Hill, M. A.; Prime, M. B.; Veirs, D. K.; Worl, L. A.] Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
[Zapp, P.] Washington Savannah River Co, Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Lillard, RS (reprint author), Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, MST 6, Los Alamos, NM 87545 USA.
EM lillard@lanl.gov
NR 25
TC 3
Z9 3
U1 1
U2 9
PU NATL ASSOC CORROSION ENG
PI HOUSTON
PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA
SN 0010-9312
J9 CORROSION
JI Corrosion
PD MAR
PY 2009
VL 65
IS 3
BP 175
EP 186
PG 12
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 420CV
UT WOS:000264266900002
ER
PT J
AU Bras, W
Clark, SM
Greaves, GN
Kunz, M
van Beek, W
Radmilovic, V
AF Bras, Wim
Clark, Simon M.
Greaves, G. Neville
Kunz, Martin
van Beek, Wouter
Radmilovic, Velimir
TI Nanocrystal Growth in Cordierite Glass Ceramics Studied with X-ray
Scattering
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID ANGLE SCATTERING; IN-SITU; SURFACE NUCLEATION; HIGH-TEMPERATURE;
SILICATE GLASS; NANOPARTICLES; CRYSTALLIZATION; SPECTROSCOPY; KINETICS;
CLUSTERS
AB The development of monodisperse crystalline particles in cordierite glass doped with Cr(3+) after a two-step heat treatment is elucidated by a combination of time-resolved small and wide angle x-ray scattering (SAXS/WAXS) experiments with electron microscopy. The effects of bulk and surface crystallization can clearly be distinguished, and the crystallization kinetics of the bulk phase is characterized. The internal pressure due to structural differences between the crystalline and amorphous phase is measured but the physical cause of this pressure can not unambiguously be attributed. The combined measurements comprise a nearly full characterization of the crystallization processes and the resulting sample morphology.
C1 [Bras, Wim] DUBBLE ESRF, Netherlands Org Sci Res NWO, F-38043 Grenoble, France.
[Clark, Simon M.; Kunz, Martin] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Greaves, G. Neville] Univ Wales, Dept Phys, Aberystwyth SY23 3BZ, Dyfed, Wales.
[van Beek, Wouter] Swiss Norwegian Beamlines ESRF, F-38043 Grenoble, France.
[Radmilovic, Velimir] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
RP Bras, W (reprint author), DUBBLE ESRF, Netherlands Org Sci Res NWO, BP220, F-38043 Grenoble, France.
EM Wim.Bras@esrf.fr
RI Bras, Wim/A-1026-2011; Kunz, Martin/K-4491-2012; Clark,
Simon/B-2041-2013
OI Kunz, Martin/0000-0001-9769-9900; Clark, Simon/0000-0002-7488-3438
FU US Department of Energy [DE-AC02-05CH11231]
FX Alex Korsunsky and Menno Oversluizen are acknowledged for discussions;
Ray Jones, Igor Dolbnya, Ruud van Tol, and Dirk Detollenaere for
technical assistance; Stuart Clarke for obtaining the SANS data; Irina
Snigireva for making the SEM pictures of the samples; Claudio Ferrero
for calculations; and Florian Meneau for assistance in the data
reduction. The Netherlands Organization for Scientific Research (NWO) is
thanked for making access to BM26B at the ESRF possible. All
transmission electron microscopy characterization has been performed at
the National Center for Electron Microscopy at Berkeley and was
supported by the Director, Office of Science, Office of Basic Energy
Sciences, of the US Department of Energy under Contract No.
DE-AC02-05CH11231. The referees are thanked for useful suggestions on
the restructuring of the manuscript. Ulrich Dahmen is thanked for
fruitful discussions and Howard Padmore for creating the possibility to
spend time at the ALS.
NR 38
TC 13
Z9 13
U1 1
U2 10
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD MAR
PY 2009
VL 9
IS 3
BP 1297
EP 1305
DI 10.1021/cg070562v
PG 9
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA 415GC
UT WOS:000263921300015
ER
PT J
AU Kuchibhatla, SVNT
Karakoti, AS
Sayle, DC
Heinrich, H
Seal, S
AF Kuchibhatla, Satyanarayana V. N. T.
Karakoti, A. S.
Sayle, D. C.
Heinrich, H.
Seal, S.
TI Symmetry-Driven Spontaneous Self-Assembly of Nanoscale Ceria Building
Blocks to Fractal Superoctahedra
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID ORIENTED AGGREGATION; CEO2; NANOPARTICLES; NANORODS; NANOSTRUCTURES;
MESOCRYSTALS; CRYSTALLIZATION; NANOMATERIALS; NANOCRYSTALS; PARTICLES
AB A combination of long-term aging studies and molecular dynamics (MD) simulations has been successfully used to explain the time-dependent hierarchical assembly of ceria nanoparticles (CNPs). When the CNPs were aged in as-synthesized condition at room temperature in water, it was observed that the individual 3-5 nm CNPs result in octahedral superstructures through a fractal assembly. This hierarchical fractal self-assembly was observed despite the absence of any surfactant, at room temperature, and under atmospheric pressure. High resolution transmission electron microscopy (HRTEM) and fast Fourier transform (FFT) analysis have been used to explore the assembly of the individual nanoparticles into fractal superoctahedra. Both experimental work and theoretical analysis showed that the initial octahedral and truncated octahedral seeds symmetrically assemble and result in the superoctahedra with intermediate transformation steps.
C1 [Kuchibhatla, Satyanarayana V. N. T.] Pacific NW Natl Lab, EMSL, Richland, WA 99354 USA.
[Kuchibhatla, Satyanarayana V. N. T.; Karakoti, A. S.; Heinrich, H.; Seal, S.] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA.
[Sayle, D. C.] Def Acad United Kingdon, Dept Appl Sci Secur & Resilience, Swindon SN6 8LA, Wilts, England.
Univ Cent Florida, Nanosci & Technol Ctr, Orlando, FL 32816 USA.
RP Kuchibhatla, SVNT (reprint author), Pacific NW Natl Lab, EMSL, Richland, WA 99354 USA.
EM satya@pnl.gov; sseal@mail.ucf.edu
RI Sayle, Dean/D-8555-2013
OI Sayle, Dean/0000-0001-7227-9010
FU NSF NIRT [CBET-0708172]; NSF CMMI [0629080]; Cambridge-Cranfield HPC
facility; U.S. DOE by Battelle Memorial Institute [DE-AC06-76RLO 1830];
Department of Energy's Office of Biological and Environmental Research;
Pacific Northwest National Laboratory (PNNL)
FX Authors would like to acknowledge the partial funding support from NSF
under the Grants NSF NIRT CBET-0708172 and NSF CMMI: -0629080 and
Cambridge-Cranfield HPC facility. 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 located at Pacific Northwest National Laboratory (PNNL). PNNL
is a multiprogram national laboratory operated for the U.S. DOE by
Battelle Memorial Institute under Contract No. DE-AC06-76RLO 1830.
NR 37
TC 15
Z9 15
U1 4
U2 23
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD MAR
PY 2009
VL 9
IS 3
BP 1614
EP 1620
DI 10.1021/cg801358z
PG 7
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA 415GC
UT WOS:000263921300060
ER
PT J
AU Garnett, AT
Han, TM
Gilchrist, MJ
Smith, JC
Eisen, MB
Wardle, FC
Amacher, SL
AF Garnett, Aaron T.
Han, Tina M.
Gilchrist, Michael J.
Smith, James C.
Eisen, Michael B.
Wardle, Fiona C.
Amacher, Sharon L.
TI Identification of direct T-box target genes in the developing zebrafish
mesoderm
SO DEVELOPMENT
LA English
DT Review
DE Enhancer prediction; Gene regulation; No tail/brachyury; Spadetail/tbx16
ID EMBRYONIC STEM-CELLS; TRANSCRIPTION FACTOR; PRESOMITIC MESODERM;
PARAXIAL MESODERM; NO-TAIL; SEGMENTATION CLOCK; CIONA-INTESTINALIS;
BRACHYURY GENE; BINDING-SITE; CONVERGENT EXTENSION
AB The zebrafish genes spadetail (spt) and no tail (ntl) encode T-box transcription factors that are important for early mesoderm development. Although much has been done to characterize these genes, the identity and location of target regulatory elements remain largely unknown. Here, we survey the genome for downstream target genes of the Spt and Ntl T-box transcription factors. We find evidence for extensive additive interactions towards gene activation and limited evidence for combinatorial and antagonistic interactions between the two factors. Using in vitro binding selection assays to define Spt- and Ntl-binding motifs, we searched for target regulatory sequence via a combination of binding motif searches and comparative genomics. We identified regulatory elements for tbx6 and deltaD, and, using chromatin immunoprecipitation, in vitro DNA binding assays and transgenic methods, we provide evidence that both are directly regulated by T-box transcription factors. We also find that deltaD is directly activated by T-box factors in the tail bud, where it has been implicated in starting the segmentation clock, suggesting that spt and ntl act upstream of this process.
C1 [Garnett, Aaron T.; Han, Tina M.; Eisen, Michael B.; Amacher, Sharon L.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Garnett, Aaron T.; Han, Tina M.; Eisen, Michael B.; Amacher, Sharon L.] Univ Calif Berkeley, Ctr Integrat Genom, Berkeley, CA 94720 USA.
[Gilchrist, Michael J.; Smith, James C.] Wellcome Trust Canc Res UK Gurdon Inst, Cambridge CB2 1QN, England.
[Smith, James C.] Dept Zool, Cambridge CB2 1QN, England.
[Eisen, Michael B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
[Eisen, Michael B.] Calif Inst Quantitat Biosci, Berkeley, CA 94158 USA.
[Wardle, Fiona C.] Dept Physiol Dev & Neurosci, Cambridge CB2 3DY, England.
RP Amacher, SL (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, 229 Stanley Hall, Berkeley, CA 94720 USA.
EM amacher@berkeley.edu
RI Wardle, Fiona/G-4013-2012;
OI Wardle, Fiona/0000-0001-5444-1889; Eisen, Michael/0000-0002-7528-738X;
Smith, Jim/0000-0003-2413-9392
FU March of Dimes Birth Defects Foundation [1-FY05-118]; Wellcome Trust
Program Grant; MRC Career Development Award; Lister Institute Research
Prize; U.C. Berkeley Center for Integrative Genomics
FX We thank D. Kimelman, U. Str hle, C. B. Chien, N. Lawson, D. J.
Grunwald, J. S. Joly and R. Y. Tsien for plasmids, and S. Schulte-Merker
and B. Draper for antibodies. We thank K. Senger, W. Rowell and M.
Levine for help with SELEX assays. We thank Emily Janus for technical
assistance, Xiao Xu for performing some of the in situ hybridizations in
Fig. S1, Jennifer St Hilaire and Kimberly Blum for fish care, and all
members of the Amacher laboratory for useful discussion. This work was
supported by the March of Dimes Birth Defects Foundation (1-FY05-118) to
S. L. A., by the Wellcome Trust Program Grant to J. C. S., and by an MRC
Career Development Award and Lister Institute Research Prize to F. C. W.
A. T. G. was supported by the U.C. Berkeley Center for Integrative
Genomics. Deposited in PMC for release after 6 months.
NR 102
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U1 1
U2 4
PU COMPANY OF BIOLOGISTS LTD
PI CAMBRIDGE
PA BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE CB4 4DL,
CAMBS, ENGLAND
SN 0950-1991
J9 DEVELOPMENT
JI Development
PD MAR 1
PY 2009
VL 136
IS 5
BP 749
EP 760
DI 10.1242/dev.024703
PG 12
WC Developmental Biology
SC Developmental Biology
GA 404DO
UT WOS:000263131100006
PM 19158186
ER
PT J
AU Sommer, GJ
Hatch, AV
AF Sommer, Greg J.
Hatch, Anson V.
TI IEF in microfluidic devices
SO ELECTROPHORESIS
LA English
DT Review
DE IEF; Microfluidics; Multidimensional
ID IMMOBILIZED PH GRADIENTS; 2-DIMENSIONAL CAPILLARY-ELECTROPHORESIS;
FLUORESCENCE IMAGING DETECTION; SULFATE GEL-ELECTROPHORESIS;
ISOELECTRIC-FOCUSING CHIP; LIGHT-EMITTING DIODE; PROTEIN SEPARATIONS;
ELECTROKINETIC METHODOLOGIES; CARRIER AMPHOLYTES; MASS-SPECTROMETRY
AB IEF is one of the most powerful and prevalent techniques used in separation sciences. The power of IEF comes from the fact that it not only separates analytes based on their pI but also focuses them into highly resolved bands. In line with the miniaturization trend spurring the analytical community, the past decade has yielded a wealth of research focused on implementing IEF in microfluidic chip-based formats (mu IEF). Scaling down the separation technique provides several advantages such as reduced sample sizes, assay automation, and significant improvements in assay speed without sacrificing separation performance. Besides presenting microscale adaptations of standard schemes, researchers have also developed improved detection techniques, demonstrated novel mu IEF assays, and incorporated mu IEF with other analytical methods for achieving on-chip multidimensional separations. This review provides a brief historical outline of IEF's beginnings, theoretical incentives driving miniaturization of the methodology, a thorough synopsis of mu IEF publications to date, and an outlook to the future.
C1 [Sommer, Greg J.; Hatch, Anson V.] Sandia Natl Labs, Biosyst Res Dept, Livermore, CA 94550 USA.
RP Sommer, GJ (reprint author), Sandia Natl Labs, Biosyst Res Dept, POB 969,MS 9292, Livermore, CA 94550 USA.
EM gsommer@sandia.gov
FU National Institute of Allergy and Infectious Disease [U01AI075441-0];
Lockheed Martin Co., for the United States Department of Energy
[DE-AC04-94AL85000]
FX The authors would like to thank Y. C. Wang and A. K. Singh for
insightful discussions. This work was completed while under the support
of National Institute of Allergy and Infectious Disease award number
U01AI075441-0. Sandia is a multiprogram laboratory operated by Sandia
Corp., a Lockheed Martin Co., for the United States Department of Energy
under Contract DE-AC04-94AL85000.
NR 88
TC 33
Z9 33
U1 0
U2 34
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0173-0835
J9 ELECTROPHORESIS
JI Electrophoresis
PD MAR
PY 2009
VL 30
IS 5
BP 742
EP 757
DI 10.1002/elps.200800598
PG 16
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 423BR
UT WOS:000264471900005
PM 19260009
ER
PT J
AU Sioshansi, R
Denholm, P
Jenkin, T
Weiss, J
AF Sioshansi, Ramteen
Denholm, Paul
Jenkin, Thomas
Weiss, Jurgen
TI Estimating the value of electricity storage in PJM: Arbitrage and some
welfare effects
SO ENERGY ECONOMICS
LA English
DT Article
DE Energy storage; Arbitrage; Social welfare
ID ENERGY-STORAGE
AB Significant increases in prices and price volatility of natural gas and electricity have raised interest in the potential economic opportunities for electricity storage. In this paper. we analyze the arbitrage value of a price-taking storage device in PJM during the six-year period from 2002 to 2007, to understand the impact of fuel prices. transmission constraints, efficiency, storage capacity, and fuel mix. The impact of load-shifting for larger amounts of storage, where reductions in arbitrage are offset by shifts in consumer and producer surplus as well as increases in social welfare from a variety of sources. is also considered. Published by Elsevier B.V.
C1 [Sioshansi, Ramteen] Ohio State Univ, Ind Welding & Syst Engn Dept, Columbus, OH 43210 USA.
[Denholm, Paul; Jenkin, Thomas] Natl Renewable Energy Lab, Golden, CO USA.
RP Sioshansi, R (reprint author), Ohio State Univ, Ind Welding & Syst Engn Dept, Columbus, OH 43210 USA.
EM sioshansi.1@osu.edu
NR 11
TC 131
Z9 134
U1 3
U2 17
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0140-9883
J9 ENERG ECON
JI Energy Econ.
PD MAR
PY 2009
VL 31
IS 2
BP 269
EP 277
DI 10.1016/j.eneco.2008.10.005
PG 9
WC Economics
SC Business & Economics
GA 412EX
UT WOS:000263707900010
ER
PT J
AU Bashkova, S
Armstrong, TR
Schwartz, V
AF Bashkova, Svetlana
Armstrong, Timothy R.
Schwartz, Viviane
TI Selective Catalytic Oxidation of Hydrogen Sulfide on Activated Carbons
Impregnated with Sodium Hydroxide
SO ENERGY & FUELS
LA English
DT Article
ID SLUDGE-DERIVED MATERIALS; SEWAGE-TREATMENT PLANTS; MICROPOROUS CARBONS;
COS HYDROLYSIS; SULFUR-DIOXIDE; PORE STRUCTURE; SURFACE-AREA;
ADSORPTION; SO2; H2S
AB Two activated carbons of different origin were impregnated with the solution of sodium hydroxide (NaOH) of various concentrations up to 10 wt %, and the effect of impregnation on the catalytic performance of the carbons was evaluated. The catalytic activity was analyzed in terms of the capacity of carbons for hydrogen sulfide (H2S) conversion and removal from hydrogen-rich fuel streams and the emission times of H2S and the products of its oxidation [e.g., sulfur dioxide (SO2) and carbonyl sulfide (COS)]. The results of impregnation showed a significant improvement in the catalytic activity of both carbons proportional to the amount of NaOH introduced. NaOH introduces hydroxyl groups (OH-) on the surface of the activated carbon that increase its surface reactivity and its interaction with sulfur-containing compounds.
C1 [Armstrong, Timothy R.; Schwartz, Viviane] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Bashkova, Svetlana] CUNY City Coll, Dept Chem, New York, NY 10031 USA.
RP Schwartz, V (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA.
EM schwartzv@ornl.gov
FU U.S. Department of Energy, Office of Fossil Energy [DE-AC05-00OR22725]
FX This research was sponsored by the U.S. Department of Energy, Office of
Fossil Energy [under Contract DE-AC05-00OR22725 with UT-Battelle, LLC,
at Oak Ridge National Laboratory (ORNL)]. A portion of this research
used Oak Ridge National Laboratory's Center for Nanophase Materials
Sciences and was sponsored by the Scientific User Facilities Division,
Office of Basic Energy Sciences, U.S. Department of Energy. The research
was supported in part by an appointment to the ORNL Postdoctoral
Research Associates Program administered jointly by the Oak Ridge
Institute for Science and Education (ORISE) and ORNL. Authors also thank
F. S. Baker for providing carbon samples, M. Kidder for the access to
the TGA instrument, and S. H. Overbury for reviewing the manuscript.
NR 53
TC 10
Z9 13
U1 5
U2 28
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD MAR-APR
PY 2009
VL 23
SI SI
BP 1674
EP 1682
DI 10.1021/ef800711c
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 436TM
UT WOS:000265439000070
ER
PT J
AU Lang, YD
Malacina, A
Biegler, LT
Munteanu, S
Madsen, JI
Zitney, SE
AF Lang, Yi-dong
Malacina, Adam
Biegler, Lorenz T.
Munteanu, Sorin
Madsen, Jens I.
Zitney, Stephen E.
TI Reduced Order Model Based on Principal Component Analysis for Process
Simulation and Optimization
SO ENERGY & FUELS
LA English
DT Article
ID COAL-GASIFICATION
AB It is well-known that distributed parameter computational fluid dynamics (CFD) models provide more accurate results than conventional, lumped-parameter unit operation models used in process simulation. Consequently, the use of CFD models in process/equipment co-simulation offers the potential to optimize overall plant performance with respect to complex thermal and fluid flow phenomena. Because solving CFD models is time-consuming compared to the overall process simulation, we consider the development of fast reduced order models (ROMs) based on CFD results to closely approximate the high-fidelity equipment models in the co-simulation. By considering process equipment items with complicated geometries and detailed thermodynamic property models, this study proposes a strategy to develop ROMs based on principal component analysis (PCA). Taking advantage of commercial process simulation and CFD software (for example, Aspen Plus and FLUENT), we are able to develop systematic CFD-based ROMs for equipment models in an efficient manner. In particular, we show that the validity of the ROM is more robust within well-sampled input domain and the CPU time is significantly reduced. Typically, it takes at most several CPU seconds to evaluate the ROM compared to several CPU hours or more to solve the CFD model. Two case studies, involving two power plant equipment examples, are described and demonstrate the benefits of using our proposed ROM methodology for process simulation and optimization.
C1 [Lang, Yi-dong; Malacina, Adam; Biegler, Lorenz T.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA.
[Lang, Yi-dong; Malacina, Adam; Biegler, Lorenz T.; Zitney, Stephen E.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Munteanu, Sorin] Ansys Inc, Lebanon, NH 03766 USA.
[Madsen, Jens I.] Ansys Inc, Morgantown, WV 26505 USA.
RP Biegler, LT (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA.
EM lb01@andrew.cmu.edu
FU U.S. Department of Energy's National Energy Technology Laboratory
[DE-PS26-04NT42249]
FX This work was performed with the support of the U.S. Department of
Energy's National Energy Technology Laboratory, under Award
DE-PS26-04NT42249.
NR 33
TC 36
Z9 37
U1 2
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
J9 ENERG FUEL
JI Energy Fuels
PD MAR-APR
PY 2009
VL 23
BP 1695
EP 1706
DI 10.1021/ef800984v
PG 12
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 436TM
UT WOS:000265439000072
ER
PT J
AU Yung, MM
Jablonski, WS
Magrini-Bair, KA
AF Yung, Matthew M.
Jablonski, Whitney S.
Magrini-Bair, Kimberly A.
TI Review of Catalytic Conditioning of Biomass-Derived Syngas
SO ENERGY & FUELS
LA English
DT Review
ID STEAM-REFORMING CATALYSTS; SUPPORTED NI CATALYSTS; FLUIDIZED-BED
REACTOR; PROMOTED NI/AL2O3 CATALYSTS; SULFUR-TOLERANT CATALYSTS;
COBALT-BASED CATALYSTS; HOT GAS; PARTIAL OXIDATION; LOW-TEMPERATURE;
HYDROGEN-PRODUCTION
AB Thermochemical conversion of biomass to create fuels and chemical products may be achieved through the gasification route via syngas. The resulting biomass-derived raw syngas contains the building blocks of carbon monoxide and hydrogen as well as undesired impurities, such as tars, hydrocarbons, hydrogen sulfide, ammonia, hydrogen chloride, and other trace contaminants. These impurities require removal, usually through catalytic conditioning, to produce a quality syngas for end-use synthesis of liquid fuels, such as mixed alcohols and Fischer-Tropsch liquids. In the past decade, significant research attention has been focused on these catalytic processes. This contribution builds on previous reviews and focuses on capturing the work on catalytic conditioning of biomass-derived syngas that have been performed since the Dayton review in 2002, with an emphasis on tar destruction and steam reforming catalysts. This review organizes and discusses the investigations of catalytic conditioning of biomass-derived syngas with various catalyst formulations and also discusses the roles of catalyst additives. Key technical challenges and research areas for the advancement of liquid fuel synthesis via thermochemical conversion of biomass are also discussed.
C1 [Yung, Matthew M.; Jablonski, Whitney S.; Magrini-Bair, Kimberly A.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
RP Yung, MM (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA.
EM matthew_yung@nrel.gov
FU U.S. Department of Energy's Biomass Program [DE-AC36-99GO-10337]
FX Funding for this work, provided by the U.S. Department of Energy's
Biomass Program Contract DE-AC36-99GO-10337, is gratefully acknowledged.
NR 151
TC 180
Z9 184
U1 6
U2 150
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
EI 1520-5029
J9 ENERG FUEL
JI Energy Fuels
PD MAR-APR
PY 2009
VL 23
SI SI
BP 1874
EP 1887
DI 10.1021/ef800830n
PG 14
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 436TM
UT WOS:000265439000097
ER
PT J
AU Middleton, RS
Bielicki, JM
AF Middleton, Richard S.
Bielicki, Jeffrey M.
TI A scalable infrastructure model for carbon capture and storage: SimCCS
SO ENERGY POLICY
LA English
DT Article
DE Carbon capture and storage; Optimization; Pipeline network
ID CO2; TECHNOLOGIES
AB In the carbon capture and storage (CCS) process, CO(2) sources and geologic reservoirs may be widely spatially dispersed and need to be connected through a dedicated CO(2) pipeline network. We introduce a scalable infrastructure model for CCS (simCCS) that generates a fully integrated, cost-minimizing CCS system. SimCCS determines where and how much CO(2) to capture and store, and where to build and connect pipelines of different sizes, in order to minimize the combined annualized costs of sequestering a given amount of CO(2). SimCCS is able to aggregate CO(2) flows between sources and reservoirs into trunk pipelines that take advantage of economies of scale. Pipeline construction costs take into account factors including topography and social impacts. SimCCS can be used to calculate the scale of CCS deployment (local, regional, national). SimCCS' deployment of a realistic. capacitated pipeline network is a major advancement for planning CCS infrastructure. We demonstrate simCCS using a set of 37 CO(2) sources and 14 reservoirs for California. The results highlight the importance of systematic planning for CCS infrastructure by examining the sensitivity of CCS infrastructure, as optimized by simCCS, to varying CO(2) targets. We finish by identifying critical future research areas for CCS infrastructure. Published by Elsevier Ltd.
C1 [Middleton, Richard S.] Oak Ridge Natl Lab, Ctr Transportat Anal, Oak Ridge, TN 37831 USA.
[Bielicki, Jeffrey M.] Harvard Kennedy Sch, Belfer Ctr Sci & Int Affairs, Cambridge, MA 02138 USA.
RP Middleton, RS (reprint author), Oak Ridge Natl Lab, Ctr Transportat Anal, MS 6054,POB 2008, Oak Ridge, TN 37831 USA.
EM middletonrs@ornl.gov
RI Middleton, Richard/A-5470-2011; Bielicki, Jeffrey/D-4239-2016
OI Bielicki, Jeffrey/0000-0001-8449-9328
FU Zero Emissions Research Technology
FX Support for part of this work was provided by Zero Emissions Research
Technology while the authors were at Los Alamos National Laboratory
(2006-2007). We are particularly grateful to Michael Kuby for his
detailed comments on earlier versions of this paper.
NR 27
TC 107
Z9 112
U1 0
U2 15
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 MAR
PY 2009
VL 37
IS 3
BP 1052
EP 1060
DI 10.1016/j.enpol.2008.09.049
PG 9
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA 415OF
UT WOS:000263942700029
ER
PT J
AU Bolinger, M
Wiser, R
AF Bolinger, Mark
Wiser, Ryan
TI Wind power price trends in the United States: Struggling to remain
competitive in the face of strong growth
SO ENERGY POLICY
LA English
DT Article
DE Wind power; Cost trends; Price trends
ID EXPERIENCE CURVES; ENERGY TECHNOLOGIES; POLICY
AB The amount of wind power capacity being installed globally is surging, with the United States the world leader in terms of annual market share for three years running (2005-2007). The rapidly growing market for wind has been a double-edged sword, however, as the resulting supply-demand imbalance in wind turbines, along with the rising cost of materials and weakness in the US dollar, has put upward pressure on wind turbine costs, and ultimately, wind power prices. Two mitigating factors-reductions in the cost of equity provided to wind projects and improvements in project-level capacity factors-have helped to relieve some of the upward pressure on wind power prices over the last few years. Because neither of these two factors can be relied upon to further cushion the blow going forward, policymakers should recognize that continued financial support may be necessary to sustain the wind sector at its current pace of development, at least in the near term. Though this article emphasizes developments in the US market for wind power, those trends are similar to, and hold implications for, the worldwide wind power market. Published by Elsevier Ltd.
C1 [Bolinger, Mark; Wiser, Ryan] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Bolinger, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM mabolinger@lbl.gov
FU US Department of Energy [DE-AC02-05CH11231]
FX Berkeley Lab's work on this article was funded by the Wind and
Hydropower Technologies Program, Office of Energy Efficiency and
Renewable Energy of the US Department of Energy under Contract no.
DE-AC02-05CH11231.
NR 28
TC 38
Z9 38
U1 0
U2 11
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 MAR
PY 2009
VL 37
IS 3
BP 1061
EP 1071
DI 10.1016/j.enpol.2008.10.053
PG 11
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA 415OF
UT WOS:000263942700030
ER
PT J
AU Crump, KS
Teeguarden, JG
AF Crump, Kenny S.
Teeguarden, Justin G.
TI Benchmark calculations from summarized data: an example
SO ENVIRONMENTAL AND ECOLOGICAL STATISTICS
LA English
DT Article
DE Benchmark analysis; Hybrid benchmark; Monte Carlo integration; Styrene
ID RISK ASSESSMENT; STYRENE
AB Benchmark calculations often are made from data extracted from publications. Such data may not be in a form most appropriate for benchmark analysis, and, as a result, suboptimal and/or non-standard benchmark analyses are often applied. This problem can be mitigated in some cases using Monte Carlo computational methods that allow the likelihood of the published data to be calculated while still using an appropriate benchmark dose (BMD) definition. Such an approach is illustrated herein using data from a study of workers exposed to styrene, in which a hybrid BMD calculation is implemented from dose response data reported only as means and standard deviations of ratios of scores on neuropsychological tests from exposed subjects to corresponding scores from matched controls. The likelihood of the data is computed using a combination of analytic and Monte Carlo integration methods.
C1 [Crump, Kenny S.] Louisiana Tech Univ, Ruston, LA 71270 USA.
[Teeguarden, Justin G.] Pacific NW Natl Lab, Richland, WA USA.
RP Crump, KS (reprint author), Louisiana Tech Univ, POB 10348, Ruston, LA 71270 USA.
EM KennyCrump@email.com
NR 14
TC 3
Z9 3
U1 0
U2 1
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1352-8505
J9 ENVIRON ECOL STAT
JI Environ. Ecol. Stat.
PD MAR
PY 2009
VL 16
IS 1
BP 13
EP 24
DI 10.1007/s10651-007-0077-1
PG 12
WC Environmental Sciences; Mathematics, Interdisciplinary Applications;
Statistics & Probability
SC Environmental Sciences & Ecology; Mathematics
GA 401VN
UT WOS:000262970600003
ER
PT J
AU Hugenholtz, P
Kyrpides, NC
AF Hugenholtz, Philip
Kyrpides, Nikos C.
TI A changing of the guard
SO ENVIRONMENTAL MICROBIOLOGY
LA English
DT Editorial Material
ID SOIL BACTERIA; GENOMES; CULTIVATION; DIVISION; DATABASE; CELL
C1 [Hugenholtz, Philip; Kyrpides, Nikos C.] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA.
RP Hugenholtz, P (reprint author), DOE Joint Genome Inst, Walnut Creek, CA 94598 USA.
EM phugenholtz@lbl.gov
RI Hugenholtz, Philip/G-9608-2011; Kyrpides, Nikos/A-6305-2014;
OI Kyrpides, Nikos/0000-0002-6131-0462; hugenholtz,
philip/0000-0001-5386-7925
NR 13
TC 17
Z9 17
U1 1
U2 7
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1462-2912
J9 ENVIRON MICROBIOL
JI Environ. Microbiol.
PD MAR
PY 2009
VL 11
IS 3
BP 551
EP 553
DI 10.1111/j.1462-2920.2009.01888.x
PG 3
WC Microbiology
SC Microbiology
GA 412WU
UT WOS:000263755700001
PM 19278443
ER
PT J
AU Mihailovic, DT
Alapaty, K
Podrascanin, Z
AF Mihailovic, Dragutin T.
Alapaty, Kiran
Podrascanin, Zorica
TI Chemical transport models
SO ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
LA English
DT Article
DE Asymmetrical mixing; Atmospheric chemistry; Convective boundary layer;
Dry deposition; Environmental modeling; Non-local convective mixing
scheme; Turbulent kinetic energy diffusivity scheme; Vertical mixing
ID BOUNDARY-LAYER; DRY DEPOSITION; OZONE; PARAMETERIZATION; RESISTANCES;
POLLUTANTS; SCHEMES
AB Improving the parameterization of processes in the atmospheric boundary layer (ABL) and surface layer, in air quality and chemical transport models. To do so, an asymmetrical, convective, non-local scheme, with varying upward mixing rates is combined with the non-local, turbulent, kinetic energy scheme for vertical diffusion (COM). For designing it, a function depending on the dimensionless height to the power four in the ABL is suggested, which is empirically derived. Also, we suggested a new method for calculating the in-canopy resistance for dry deposition over a vegetated surface.
The upward mixing rate forming the surface layer is parameterized using the sensible heat flux and the friction and convective velocities. Upward mixing rates varying with height are scaled with an amount of turbulent kinetic energy in layer, while the downward mixing rates are derived from mass conservation. The vertical eddy diffusivity is parameterized using the mean turbulent velocity scale that is obtained by the vertical integration within the ABL. In-canopy resistance is calculated by integration of inverse turbulent transfer coefficient inside the canopy from the effective ground roughness length to the canopy source height and, further, from its the canopy height.
This combination of schemes provides a less rapid mass transport out of surface layer into other layers, during convective and non-convective periods, than other local and non-local schemes parameterizing mixing processes in the ABL. The suggested method for calculating the in-canopy resistance for calculating the dry deposition over a vegetated surface differs remarkably from the commonly used one, particularly over forest vegetation.
In this paper, we studied the performance of a non-local, turbulent, kinetic energy scheme for vertical diffusion combined with a non-local, convective mixing scheme with varying upward mixing in the atmospheric boundary layer (COM) and its impact on the concentration of pollutants calculated with chemical and air-quality models. In addition, this scheme was also compared with a commonly used, local, eddy-diffusivity scheme. Simulated concentrations of NO(2) by the COM scheme and new parameterization of the in-canopy resistance are closer to the observations when compared to those obtained from using the local eddy-diffusivity scheme.
Concentrations calculated with the COM scheme and new parameterization of in-canopy resistance, are in general higher and closer to the observations than those obtained by the local, eddy-diffusivity scheme (on the order of 15-22%).
To examine the performance of the scheme, simulated and measured concentrations of a pollutant (NO(2)) were compared for the years 1999 and 2002. The comparison was made for the entire domain used in simulations performed by the chemical European Monitoring and Evaluation Program Unified model (version UNI-ACID, rv2.0) where schemes were incorporated.
C1 [Mihailovic, Dragutin T.] Univ Novi Sad, Fac Agr, Novi Sad 21000, Serbia.
[Alapaty, Kiran] US DOE, Washington, DC 20585 USA.
[Podrascanin, Zorica] Univ Novi Sad, Univ Ctr Meteorol & Environm Modelling, ACIMSI, Novi Sad 21000, Serbia.
RP Mihailovic, DT (reprint author), Univ Novi Sad, Fac Agr, Trg Dositeja Obradov 8, Novi Sad 21000, Serbia.
EM guto@polj.ns.ac.yu
FU Ministry of Science Republic of Serbia; 'Modelling and numerical
simulations of complex physical systems' [ON141035]
FX The research work described in this paper has been funded by the
Ministry of Science Republic of Serbia under the project 'Modelling and
numerical simulations of complex physical systems', No. ON141035 for
2006-2010. The work on this paper was partly realized by the first
author during his visit to the Norwegian Meteorological Institute in
Oslo.
NR 33
TC 3
Z9 3
U1 0
U2 8
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 0944-1344
J9 ENVIRON SCI POLLUT R
JI Environ. Sci. Pollut. Res.
PD MAR
PY 2009
VL 16
IS 2
BP 144
EP 151
DI 10.1007/s11356-008-0086-0
PG 8
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 411VZ
UT WOS:000263682700004
PM 19145454
ER
PT J
AU Utsunomiya, S
Kersting, AB
Ewing, RC
AF Utsunomiya, Satoshi
Kersting, Annie B.
Ewing, Rodney C.
TI Groundwater Nanoparticles in the Far-Field at the Nevada Test Site:
Mechanism for Radionuclide Transport
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID NUCLEAR WASTE-DISPOSAL; YUCCA MOUNTAIN TUFF; COLLOID TRANSPORT;
POROUS-MEDIA; SUBSURFACE ENVIRONMENT; TETRAVALENT ACTINIDES; POTENTIAL
REPOSITORY; FISSION-PRODUCTS; OXIDATION-STATES; SORBED PU
AB Colloid-like nanoparticles in groundwater have been shown to facilitate migration of several radionuclides: (239,240)Pu, (137)Cs, (152,154,155)Eu, and (60)Co (1). However, the exact type of nanoparticle and the speciation of the associated radionuclides has remained unknown, We have investigated nanoparticles sampled from the far-field at the Nevada Test Site, Nevada, utilizing advanced electron microscopy techniques, including high-angle annular dark-field scanning TEM (HAADF-STEM). Fissiogenic elements: Cs, rare earth elements (REE), activation elements: Co; and actinides: U and Th, were detected. Cesium is associated with U-forming cesium uranate with a Cs/U atomic ratio of similar to 0.12. Light REEs and Th are associated with phosphates, silicates, or apatite. Cobalt occurs as a metallic aggregate, associated with Cr, Fe, Ni, and +/- Mo. Uranyl minerals; Na-boltwoodite and oxide hydrates are also present as colloids. Because of these chemical associations with nanoscale particles, in the size range <100 nm, these particles may facilitate transport, and a variety of trace nanoscale phases may be responsible for the migration of fissiogenic and actinide elements in groundwater, To accurately model the transport of these contaminants, predictive transport models should include consideration of nanoparticle-facilitated transport.
C1 [Utsunomiya, Satoshi] Kyushu Univ, Dept Chem, Fukuoka 8108560, Japan.
[Ewing, Rodney C.] Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA.
[Kersting, Annie B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Ewing, Rodney C.] Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA.
RP Utsunomiya, S (reprint author), Kyushu Univ, Dept Chem, Fukuoka 8108560, Japan.
EM utu@chem.rc.kyushu-u.ac.jp
FU US-DOE; Office of Basic Energy Sciences [DE-G02-06ERI5783]
FX S.U. acknowledges use of the Electron Microbearn Analysis Laboratory
(EMAL) at the University of Michigan and thanks the staff, Drs. John
Mansfield and Kai Still, for their help. This work was supported by the
US-DOE, Office of Basic Energy Sciences (DE-G02-06ERI5783).
NR 64
TC 38
Z9 40
U1 8
U2 58
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 MAR 1
PY 2009
VL 43
IS 5
BP 1293
EP 1298
DI 10.1021/es802181t
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 412XX
UT WOS:000263758600013
PM 19350893
ER
PT J
AU Buesseler, KO
Kaplan, DI
Dai, M
Pike, S
AF Buesseler, Ken O.
Kaplan, Daniel I.
Dai, Minhan
Pike, Steven
TI Source-Dependent and Source-independent Controls on Plutonium Oxidation
State and Colloid Associations in Groundwater
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID FALLOUT PLUTONIUM; NORTH-ATLANTIC; TRANSPORT; SEDIMENTS; MOBILITY;
WATERS; SITE; GEOCHEMISTRY; ENVIRONMENT; ADSORPTION
AB Plutonium (Pu) was characterized for its isotopic composition, oxidation states, and association with colloids in groundwater samples near disposal basins in F-Area of the Savannah River Site and compared to similar samples collected six years earlier. Two sources of Pu were identified, the disposal basins, which contained a (240)Pu/(239)Pu isotopic signature consistent with weapons grade Pu, and (244)Cm, a cocontaminant that is a progenitor radionuclide of (240)Pu. (240)Pu that originated primarily from (240)Cm tended to be appreciably more oxidized (Pu(V/VI)), less associated with colloids (similar to 1 kDa - 0.2 mu m), and more mobile than (239)Pu, as suggested by our prior studies at this site. This is not evidence of isotope fractionation but rather "source-dependent" controls on (240)Pu speciation which are processes that are not at equilibrium, i.e., processes that appear kinetically hindered. There were also "source-independent" controls on IN speciation, which are those processes that follow thermodynamic equilibrium with their surroundings. For example, a groundwater pH increase in one well from 4.1 in 1998 to 6.1 in 2004 resulted in an order of magnitude decrease in groundwater (239)Pu concentrations. Similarly, the fraction of (239)Pu in the reduced Pu(III/IV) and colloidal forms increased systematically with decreases in redox condition in 2004 vs 1998. This research demonstrates the importance of source-dependent and source-independent controls on Pu speciation which would impact Pu mobility during changes in hydrological, chemical, or biological conditions on both seasonal and decadal time scales, and over short spatial scales. This implies more dynamic shifts in Pu speciation, colloids association, and transport in groundwater than commonly believed.
C1 [Buesseler, Ken O.; Pike, Steven] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
[Kaplan, Daniel I.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Dai, Minhan] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China.
RP Buesseler, KO (reprint author), Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
EM kbuesseler@whoi.edu
RI Dai, Minhan/G-3343-2010
OI Dai, Minhan/0000-0003-0550-0701
FU Environmental Remediation Science Program (ERSP); Office of Science; US
Department of Energy; Woods Hole Oceanographic Institution
[DE-FG02-03ER63659]; Savannah River National Laboratory (SRS)
[DE-AC09-96SR18500]; Pacific Northwest National Laboratory
[DEAC06-76RL01830]
FX This research was supported by the Environmental Remediation Science
Program (ERSP) within the Office of Science, US Department of Energy.
Work at the Woods Hole Oceanographic Institution was per-formed under
the auspices of DOE contract DE-FG02-03ER63659; for Savannah River
National Laboratory (SRS), DOE contract DE-AC09-96SR18500, for Pacific
Northwest National Laboratory, DOE contract DEAC06-76RL01830. Work in
the field at SRS and laboratory involved many who contributed
significantly to the success of this project, including Henrieta
Dulaiova, John Andrews, and Carl Lamborg at WHOI; Jay Noonkester and
Carl Black at SRNL; and Steve Peterson, Tapas Maiti, Douglas Mathew, Ken
Wagnon, and Sara Hager at PNNL.
NR 48
TC 12
Z9 13
U1 1
U2 23
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 MAR 1
PY 2009
VL 43
IS 5
BP 1322
EP 1328
DI 10.1021/es8028318
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 412XX
UT WOS:000263758600018
PM 19350898
ER
PT J
AU Ban-Weiss, GA
Lunden, MM
Kirchstetter, TW
Harley, RA
AF Ban-Weiss, George A.
Lunden, Melissa M.
Kirchstetter, Thomas W.
Harley, Robert A.
TI Measurement of Black Carbon and Particle Number Emission Factors from
Individual Heavy-Duty Trucks
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID ON-ROAD; PARTICULATE MATTER; LABORATORY EVALUATION; COMBUSTION AEROSOLS;
DIESEL; VEHICLES; GASOLINE; NEVADA; FLEET
AB Emission factors for black carbon (BC) and particle number (PN) were measured from 226 individual heavy-duty (HD) diesel trucks driving through a 1-km-long California highway tunnel in August 2006. Emission factors were based on concurrent increases in BC, PN, and CO2 concentrations (measured at 1 Hz) that corresponded to the passage of individual HD trucks. The distributions of BC and PN emission factors from individual HD trucks are skewed, meaning that a large fraction of pollution comes from a small fraction of the in-use vehicle fleet The highest-emitting 10% of trucks were responsible for similar to 40% of total BC and PN emissions from all HD trucks. BC emissions were log-normally distributed with a mean emission factor of 1.7 g kg(-1) and maximum values of similar to 10 g kg(-1). Corresponding values for PN emission factors were 4.7 x 10(15) and 4 x 10(16) # kg(-1). There was minimal overlap among high-emitters of these two pollutants: only 1 of the 226 HD trucks measured was found to be among the highest 10% for both BC and PN. Monte Carlo resampling of the distribution of BC emission factors observed in this Study revealed that uncertainties (1 sigma) in extrapolating from a random sample of n HD trucks to a population mean emission factor ranged from +/- 43% for n = 10 to +/- 8% for n = 300, illustrating the importance of vehicle sample sizes in emissions studies. When n = 10, sample means are more likely to be biased due to misrepresentation of high-emitters. As vehicles become cleaner on average in the future, skewness of the emissions distributions will increase, and thus sample sizes needed to extrapolate reliably from a subset of vehicles to the entire in-use vehicle fleet will become more of a challenge.
C1 [Harley, Robert A.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Ban-Weiss, George A.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
[Lunden, Melissa M.; Kirchstetter, Thomas W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Atmospher Sci, Berkeley, CA 94720 USA.
RP Harley, RA (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
EM harley@ce.berkeley.edu
RI Harley, Robert/C-9177-2016;
OI Harley, Robert/0000-0002-0559-1917; Ban-Weiss,
George/0000-0001-8211-2628
FU California Air Resources Board [05-309]
FX This research was supported by the California Air Resources Board under
contract 05-309. The statements and conclusions herein are those of the
authors and do not necessarily reflect the views of the project sponsor.
We thank David Fairley, Tony Strawa, Tony I Tansen, Susanne Hering, John
McLaughlin, Andrew Kean, and Jamie Schauer for helpful discussions and
technical assistance. Also thanks to Caltrans staff at the Caldecott
tunnel.
NR 24
TC 43
Z9 43
U1 4
U2 35
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 MAR 1
PY 2009
VL 43
IS 5
BP 1419
EP 1424
DI 10.1021/es8021039
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 412XX
UT WOS:000263758600033
PM 19350913
ER
PT J
AU Kibanova, D
Cervini-Silva, J
Destaillats, H
AF Kibanova, Daria
Cervini-Silva, Javiera
Destaillats, Hugo
TI Efficiency of Clay-TiO2 Nanocomposites on the Photocatalytic Elimination
of a Model Hydrophobic Air Pollutant
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID GAS-PHASE; INDOOR AIR; CLAY-MINERALS; TIO2 PHOTOCATALYSIS;
SURFACE-REACTIONS; BY-PRODUCTS; TOLUENE; OXIDATION; DEGRADATION; WATER
AB Clay-supported TiO2 photocatalysts can potentially improve the performance of air treatment technologies via enhanced adsorption and reactivity of target volatile organic compounds (VOCs). In this study, a benchtop photocatalytic flow reactor was used to evaluate the efficiency of hectorite-TiO2 and kaolinite-TiO2, two novel composite materials synthesized in our laboratory. Toluene, a model hydrophobic VOC and a common indoor air pollutant, was introduced in the air stream at realistic concentrations, and reacted under UVA (lambda(max) = 365 nm) or UVC (lambda(max) = 254 nm) irradiation. The UVC lamp generated secondary emission at 185 rim, leading to the formation of ozone and other short-lived reactive species. Performance of clay-TiO2 composites was compared with that of pure TiO2 (Degussa P25), and with UV irradiation in the absence of photocatalyst under identical conditions. Films of clay-TiO2 composites and of P25 were prepared by a dip-coating method on the surface of Raschig rings, which were placed inside the flow reactor. An upstream toluene concentration of similar to 170 ppbv was generated by diluting a constant flow of toluene vapor from a diffusion source with dry air, or with humid air at 10, 33, and 66% relative humidity (RH). Toluene concentrations were, determined by collecting Tenax-TA sorbent tubes downstream of the reactor, with subsequent thermal desorption-GC/MS analysis. The fraction of toluene removed, %R, and the reaction rate, T-r, were calculated for each experimental condition from the concentrations measured with and without UV irradiation. Use of UVC light (UV/TiO2/O-3) led to overall higher reactivity, which can be partially attributed to the contribution of gas phase reactions by short-lived radical species. When the reaction rate was normalized to the light irradiance, T-rho/l(lambda), the UV/TiO2 reaction under UVA irradiation was more efficient for samples with a higher content of TiO2 (P25 and Hecto-TiO2), but not for Kao-TiO2. In all cases, reaction rates peaked at 10% RH, with T-r values between 10 and 50% higher than those measured under dry air. However,a net inhibition was observed as RH increased to 33% and 66%, indicating that water molecules competed effectively with toluene for reactive surface sites and limited the overall photocatalytic conversion. Compared to P25, inhibition by coadsorbed water was less significant for Kao-TiO2 samples, but was more dramatic for Hecto-TiO2 due to the high water uptake capacity of hectorite.
C1 [Destaillats, Hugo] Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA.
[Kibanova, Daria] Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04150, DF, Mexico.
[Kibanova, Daria; Cervini-Silva, Javiera] Univ Nacl Autonoma Mexico, Inst Geografia, Berkeley, CA USA.
[Cervini-Silva, Javiera] Univ Nacl Autonoma Mexico, NASA Astrobiol Inst, Berkeley, CA USA.
[Destaillats, Hugo] Arizona State Univ, Dept Civil Environm & Sustainable Engn, Tempe, AZ USA.
RP Cervini-Silva, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Environm Energy Technol Div, 1 Cyclotron Rd,MS 70-108B, Berkeley, CA 94720 USA.
EM jcervini@igg.unam.mx
RI Destaillats, Hugo/B-7936-2013
FU U.S. DOE [DE-AC02-05CH111231]; LBNL [LDRD LB07014]; DGAPA-UNAM; ECA-CORE
2020 (Semarn at-Conacyt); PUNTA-UNAM; Mexican Academy of Sciences;
United States-Mexico Foundation for Science; AMC-FUMEC
FX We express gratitude to R. Maddalena (LBNL) for GC/MS support, to L.A.
Gundel and R. Dod (LBNL) for helpful discussions, and to M. Trejo (UNAM)
for his participation in the synthesis of composite materials.
Experimental work was carried out at LBNL. under U.S. DOE Contract
DE-AC02-05CH111231. This project was supported in part by LBNL (LDRD
LB07014, Project 366088), by DGAPA-UNAM, ECA-CORE 2020 (Semarn
at-Conacyt) and PUNTA-UNAM. D.K. thanks the support of a DGAPA-UNAM
scholarship. J.C.S. thanks the support of the Mexican Academy of
Sciences (Academia Mexicana de Ciencias) and The United States-Mexico
Foundation for Science (Fundacion Mexico-Estados Unidos para la Ciencia)
through the 2006-Young Researcher Summer Program Fellowship (AMC-FUMEC).
NR 55
TC 65
Z9 70
U1 13
U2 102
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 MAR 1
PY 2009
VL 43
IS 5
BP 1500
EP 1506
DI 10.1021/es803032t
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 412XX
UT WOS:000263758600046
PM 19350926
ER
PT J
AU Brezzi, F
Buffa, A
Lipnikov, K
AF Brezzi, Franco
Buffa, Annalisa
Lipnikov, Konstantin
TI MIMETIC FINITE DIFFERENCES FOR ELLIPTIC PROBLEMS
SO ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION
MATHEMATIQUE ET ANALYSE NUMERIQUE
LA English
DT Article
DE Finite differences; polyhedral meshes; diffusion equation; error
estimates
ID POLYHEDRAL MESHES; DIFFUSION-PROBLEMS; CONVERGENCE; FAMILY
AB We developed a mimetic finite difference method for solving elliptic equations with tensor coefficients on polyhedral meshes. The first-order convergence estimates in a mesh-dependent II(1) norm are derived.
C1 [Brezzi, Franco] Ist Univ Studi Super, Pavia, Italy.
Inst Matemat Applicata & Tecnol Informat, Pavia, Italy.
[Lipnikov, Konstantin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Brezzi, F (reprint author), Ist Univ Studi Super, Pavia, Italy.
EM brezzi@imati.cnr.it; annalisa@imati.cnr.it; lipnikov@lanl.gov
RI Brezzi, Franco/D-4362-2009; Buffa, Annalisa/C-4275-2011
OI Brezzi, Franco/0000-0003-4715-5475; Buffa, Annalisa/0000-0003-0384-0876
FU US Department of Energy at Los Alamos National Laboratory
[DE-AC52-06NA25396]; DOE Office of Science Advanced Scientific Computing
Research (ASCR); Italian PRIN [2006013187]
FX The authors thanks Dr. Gao Garimella (LANL) for his help in generating
polyhedral meshes.
NR 14
TC 68
Z9 68
U1 0
U2 5
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 0764-583X
J9 ESAIM-MATH MODEL NUM
JI ESAIM-Math. Model. Numer. Anal.-Model. Math. Anal. Numer.
PD MAR-APR
PY 2009
VL 43
IS 2
BP 277
EP 295
DI 10.1051/m2an:2008046
PG 19
WC Mathematics, Applied
SC Mathematics
GA 427XF
UT WOS:000264811700003
ER
PT J
AU Byrne, S
Guiney, E
Barth, S
Donnison, I
Mur, LAJ
Milbourne, D
AF Byrne, Stephen
Guiney, Emma
Barth, Susanne
Donnison, Iain
Mur, Luis A. J.
Milbourne, Dan
TI Identification of coincident QTL for days to heading, spike length and
spikelets per spike in Lolium perenne L.
SO EUPHYTICA
LA English
DT Article
DE Lolium perenne; QTL; Days to heading; Spike length; Spikelets per spike
ID CONTROLLING VERNALIZATION REQUIREMENT; FESTUCA-PRATENSIS HUDS.;
FLOWERING TIME; LINKAGE MAP; SSR MARKERS; ALPHA-SUBUNIT; RYEGRASS;
WHEAT; RICE; GENES
AB Flowering time is a trait which has a major influence on the quality of forage. In addition, flowering and subsequent seed yields are important traits for seed production by grass breeders. In this study, we have identified quantitative trait loci (QTL) for flowering time and morphological traits of the flowering head in an F(1) mapping population in Lolium perenne L (perennial ryegrass), a number of which have not previously been identified in L. perenne mapping studies. QTL for days to heading (DTH) were mapped in both outdoor and glasshouse experiments, revealing three and five QTL for DTH which explained 53% and 42% of the total phenotypic variation observed, respectively. Two QTL for DTH were detected in both environments, although they had contrasting relative magnitudes in each environment. One QTL for spike length and three QTL for spikelets per spike were also identified explaining, a total of 32 and 33% of the phenotypic variance, respectively. Furthermore, the QTL for spike length and spikelets per spike generally coincided with QTL for days to heading, implying co-ordinate regulation by underlying genes. Of particular interest was a region harbouring overlapping QTL for days to heading, spike length and spikelets per spike on the top of linkage group 4, containing the major QTL for spike length identified in this population.
C1 [Byrne, Stephen; Guiney, Emma; Barth, Susanne; Milbourne, Dan] TEAGASC, Crops Res Ctr, Carlow, Ireland.
[Donnison, Iain; Mur, Luis A. J.] Aberystwyth Univ, Inst Biol Environm & Rural Sci, Aberystwyth SY23 3EB, Dyfed, Wales.
RP Byrne, S (reprint author), TEAGASC, Crops Res Ctr, Oak Pk, Carlow, Ireland.
EM stephen.byrne@teagasc.ie
RI Donnison, Iain/K-6138-2014; Barth, Susanne/P-3366-2014;
OI Barth, Susanne/0000-0002-4104-5964; Mur, Luis/0000-0002-0961-9817;
Milbourne, Dan/0000-0002-8323-6195; Donnison, Iain/0000-0001-6276-555X;
Byrne, Stephen/0000-0002-1179-2272
FU Teagasc Walsh Fellowship/Ireland
FX S. Byrne was awarded a Teagasc Walsh Fellowship/Ireland to undertake
this study.
NR 30
TC 15
Z9 16
U1 4
U2 20
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0014-2336
J9 EUPHYTICA
JI Euphytica
PD MAR
PY 2009
VL 166
IS 1
BP 61
EP 70
DI 10.1007/s10681-008-9831-1
PG 10
WC Agronomy; Plant Sciences; Horticulture
SC Agriculture; Plant Sciences
GA 404NN
UT WOS:000263160000006
ER
PT J
AU Boyle, TJ
Pratt, HD
Alam, TM
Headley, T
Rodriguez, MA
AF Boyle, Timothy J.
Pratt, Harry D., III
Alam, Todd M.
Headley, Thomas
Rodriguez, Mark A.
TI Synthesis and Characterization of Thiolate-Oxo Ligated Zinc Alkyl
Derivatives for Production of Zn-Based Nanoparticles
SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
LA English
DT Article
DE O,S ligands; Zinc; Zincite; Wurtzite; Ceramics; Nanomaterials
ID THIN-FILM TRANSISTORS; X-RAY STRUCTURES; OXIDE NANOPARTICLES;
CRYSTAL-STRUCTURES; METAL NANOWIRES; STRUCTURAL-CHARACTERIZATION;
MOLECULAR-STRUCTURES; ALKOXIDE PRECURSORS; QUANTUM DOTS; COMPLEXES
AB A series of mercapto-oxo containing reagents [3-mercaptopropionic acid (H(2)-3MPA), 4-mercaptophenol (H(2)-4MP), 2-mercaptopyridine N-oxide (H-2MPO)] was treated with diethylzinc (ZnEt(2)) in hexanes/pyridine (py) to yield {(mu(4)-3MPA)[Zn(Et)(py)]4}(infinity) (1), [(py)(2)(Et)Zn(mu(3)-4MP)Zn(Et)(py)](2) (2), and (2MPO)Zn(Et)py (3). For polymeric 1, each of the functional sites of the 3MPA was bound to four tetrahedral (Td) coordinated Zn(Et)(py) subunits. The sulfur of the 3MPA bridges two of the Zn(Et)(py) subunits, which are also bridged by the two carboxylate oxygens of another 3MPA to propagate the chain. In contrast, 2 forms a discrete tetranuclear species consisting of two Zn(Et)(py) moieties bridged by the oxygens of two 4MP ligands with the thiolate sites of each terminated by Zn(Et)(py)(2) moieties. Compound 3 adopts a monomeric species using a chelating 2MPO, a terminal Et, and a bound py to fill the Td coordination of the Zn metal center. Compounds 1-3 were then used to generate nanoparticles via solution precipitation and solvothermal routes to determine the effect these precursors have on the morphology and composition of the final materials produced. Compounds 1-3 were found to form zincite, zinc metal, or mixed zincite/wurtzite phases from solution precipitation or solvothermal routes; however, no routes yielded the mixed anion (i.e., ZnO(x)S(y)) materials. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
C1 [Boyle, Timothy J.; Pratt, Harry D., III; Alam, Todd M.; Headley, Thomas; Rodriguez, Mark A.] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA.
RP Boyle, TJ (reprint author), Sandia Natl Labs, Adv Mat Lab, 1001 Univ Blvd SE, Albuquerque, NM 87106 USA.
EM tjboyle@Sandia.gov
FU National Institutes of Health (NIH) [1 R21 EB005365-01]; United States
Department of Energy [DE-AC04-94AL85000]
FX This work was partially funded by the Office of Basic Energy Sciences of
the Department of Energy as well as the National Institutes of Health
(NIH) through the NIH Roadmap for Medical Research, Grant #1 R21
EB005365-01. information on this RFA (innovation in Molecular Imaging
Probes) can be found at
http://grants.nih.gov/grants/guide/rfa-files/RFA-RM-04-021.html. Sandia
is a multiprogram laboratory operated by Sandia Corporation, a Lockheed
Martin Company, for the United States Department of Energy under
contract DE-AC04-94AL85000.
NR 81
TC 10
Z9 10
U1 7
U2 22
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1434-1948
J9 EUR J INORG CHEM
JI Eur. J. Inorg. Chem.
PD MAR
PY 2009
IS 7
BP 855
EP 865
DI 10.1002/ejic.200800886
PG 11
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 421KE
UT WOS:000264357000002
PM 24068879
ER
PT J
AU Chekanov, S
Derrick, M
Magill, S
Musgrave, B
Nicholass, D
Repond, J
Yoshida, R
Mattingly, MCK
Antonioli, P
Bari, G
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Cindolo, F
Corradi, M
Iacobucci, G
Margotti, A
Nania, R
Polini, A
Antonelli, S
Basile, M
Bindi, M
Cifarelli, L
Contin, A
De Pasquale, S
Sartorelli, G
Zichichi, A
Bartsch, D
Brock, I
Hartmann, H
Hilger, E
Jakob, HP
Jungst, M
Nuncio-Quiroz, AE
Paul, E
Samson, U
Schonberg, V
Shehzadi, R
Wlasenko, M
Brook, NH
Heath, GP
Morris, JD
Capua, M
Fazio, S
Mastroberardino, A
Schioppa, M
Susinno, G
Tassi, E
Kim, JY
Ibrahim, ZA
Kamaluddin, B
Abdullah, WAT
Ning, Y
Ren, Z
Sciulli, F
Chwastowski, J
Eskreys, A
Figiel, J
Galas, A
Gil, M
Olkiewicz, K
Stopa, P
Zawiejski, L
Adamczyk, L
Bold, T
Grabowska-Bold, I
Kisielewska, D
Lukasik, J
Przybycien, M
Suszycki, L
Kotanski, A
Slominski, W
Behrens, U
Blohm, C
Bonato, A
Borras, K
Ciesielski, R
Coppola, N
Fang, S
Fourletova, J
Geiser, A
Gottlicher, P
Grebenyuk, J
Gregor, I
Haas, T
Hain, W
Huttmann, A
Januschek, F
Kahle, B
Katkov, II
Klein, U
Kotz, U
Kowalski, H
Lobodzinska, E
Lohr, B
Mankel, R
Melzer-Pellmann, IA
Miglioranzi, S
Montanari, A
Namsoo, T
Notz, D
Parenti, A
Rinaldi, L
Roloff, P
Rubinsky, I
Santamarta, R
Schneekloth, U
Spiridonov, A
Szuba, D
Szuba, J
Theedt, T
Wolf, G
Wrona, K
Molina, AG
Youngman, C
Zeuner, W
Drugakov, V
Lohmann, W
Schlenstedt, S
Barbagli, G
Gallo, E
Pelfer, PG
Bamberger, A
Dobur, D
Karstens, F
Vlasov, NN
Bussey, PJ
Doyle, AT
Dunne, W
Forrest, M
Rosin, M
Saxon, DH
Skillicorn, IO
Gialas, I
Papageorgiu, K
Holm, U
Klanner, R
Lohrmann, E
Schleper, P
Schorner-Sadenius, T
Sztuk, J
Stadie, H
Turcato, M
Foudas, C
Fry, C
Long, KR
Tapper, AD
Matsumoto, T
Nagano, K
Tokushuku, K
Yamada, S
Yamazaki, Y
Barakbaev, AN
Boos, EG
Pokrovskiy, NS
Zhautykov, BO
Aushev, V
Bachynska, O
Borodin, M
Kadenko, I
Kozulia, A
Libov, V
Lisovyi, M
Lontkovskyi, D
Makarenko, I
Sorokin, I
Verbytskyi, A
Volynets, O
Son, D
de Favereau, J
Piotrzkowski, K
Barreiro, F
Glasman, C
Jimenez, M
Labarga, L
del Peso, J
Ron, E
Soares, M
Terron, J
Zambrana, M
Corriveau, F
Liu, C
Schwartz, J
Walsh, R
Zhou, C
Tsurugai, T
Antonov, A
Dolgoshein, BA
Gladkov, D
Sosnovtsev, V
Stifutkin, A
Suchkov, S
Dementiev, RK
Ermolov, PF
Gladilin, LK
Golubkov, YA
Khein, LA
Korzhavina, IA
Kuzmin, VA
Levchenko, BB
Lukina, OY
Proskuryakov, AS
Shcheglova, LM
Zotkin, DS
Abt, I
Caldwell, A
Kollar, D
Reisert, B
Schmidke, WB
Grigorescu, G
Keramidas, A
Koffeman, E
Kooijman, P
Pellegrino, A
Tiecke, H
Vazquez, M
Wiggers, L
Brummer, N
Bylsma, B
Durkin, LS
Lee, A
Ling, TY
Allfrey, PD
Bell, MA
Cooper-Sarkar, AM
Devenish, RCE
Ferrando, J
Foster, B
Korcsak-Gorzo, K
Oliver, K
Robertson, A
Uribe-Estrada, C
Walczak, R
Bertolin, A
Corso, F
Dusini, S
Longhin, A
Stanco, L
Bellan, P
Brugnera, R
Carlin, R
Garfagnini, A
Limentani, S
Oh, BY
Raval, A
Ukleja, J
Whitmore, JJ
Iga, Y
D'Agostini, G
Marini, G
Nigro, A
Cole, JE
Hart, JC
Abramowicz, H
Ingbir, R
Kananov, S
Levy, A
Stern, A
Kuze, M
Maeda, J
Hori, R
Kagawa, S
Okazaki, N
Shimizu, S
Tawara, T
Hamatsu, R
Kaji, H
Kitamura, S
Ota, O
Ri, YD
Costa, M
Ferrero, MI
Monaco, V
Sacchi, R
Solano, A
Arneodo, M
Ruspa, M
Fourletov, S
Martin, JF
Stewart, TP
Boutle, SK
Butterworth, JM
Gwenlan, C
Jones, TW
Loizides, JH
Wing, M
Brzozowska, B
Ciborowski, J
Grzelak, G
Kulinski, P
Luzniak, P
Malka, J
Nowak, RJ
Pawlak, JM
Tymieniecka, T
Ukleja, A
Zarnecki, AF
Adamus, M
Plucinski, P
Eisenberg, Y
Hochman, D
Karshon, U
Brownson, E
Danielson, T
Everett, A
Kcira, D
Reeder, DD
Ryan, P
Savin, AA
Smith, WH
Wolfe, H
Bhadra, S
Catterall, CD
Cui, Y
Hartner, G
Menary, S
Noor, U
Standage, J
Whyte, J
AF Chekanov, S.
Derrick, M.
Magill, S.
Musgrave, B.
Nicholass, D.
Repond, J.
Yoshida, R.
Mattingly, M. C. K.
Antonioli, P.
Bari, G.
Bellagamba, L.
Boscherini, D.
Bruni, A.
Bruni, G.
Cindolo, F.
Corradi, M.
Iacobucci, G.
Margotti, A.
Nania, R.
Polini, A.
Antonelli, S.
Basile, M.
Bindi, M.
Cifarelli, L.
Contin, A.
De Pasquale, S.
Sartorelli, G.
Zichichi, A.
Bartsch, D.
Brock, I.
Hartmann, H.
Hilger, E.
Jakob, H. -P.
Jungst, M.
Nuncio-Quiroz, A. E.
Paul, E.
Samson, U.
Schoenberg, V.
Shehzadi, R.
Wlasenko, M.
Brook, N. H.
Heath, G. P.
Morris, J. D.
Capua, M.
Fazio, S.
Mastroberardino, A.
Schioppa, M.
Susinno, G.
Tassi, E.
Kim, J. Y.
Ibrahim, Z. A.
Kamaluddin, B.
Wan Abdullah, W. A. T.
Ning, Y.
Ren, Z.
Sciulli, F.
Chwastowski, J.
Eskreys, A.
Figiel, J.
Galas, A.
Gil, M.
Olkiewicz, K.
Stopa, P.
Zawiejski, L.
Adamczyk, L.
Bold, T.
Grabowska-Bold, I.
Kisielewska, D.
Lukasik, J.
Przybycien, M.
Suszycki, L.
Kotanski, A.
Slominski, W.
Behrens, U.
Blohm, C.
Bonato, A.
Borras, K.
Ciesielski, R.
Coppola, N.
Fang, S.
Fourletova, J.
Geiser, A.
Gottlicher, P.
Grebenyuk, J.
Gregor, I.
Haas, T.
Hain, W.
Huttmann, A.
Januschek, F.
Kahle, B.
Katkov, I. I.
Klein, U.
Kotz, U.
Kowalski, H.
Lobodzinska, E.
Lohr, B.
Mankel, R.
Melzer-Pellmann, I. -A.
Miglioranzi, S.
Montanari, A.
Namsoo, T.
Notz, D.
Parenti, A.
Rinaldi, L.
Roloff, P.
Rubinsky, I.
Santamarta, R.
Schneekloth, U.
Spiridonov, A.
Szuba, D.
Szuba, J.
Theedt, T.
Wolf, G.
Wrona, K.
Yagues Molina, A. G.
Youngman, C.
Zeuner, W.
Drugakov, V.
Lohmann, W.
Schlenstedt, S.
Barbagli, G.
Gallo, E.
Pelfer, P. G.
Bamberger, A.
Dobur, D.
Karstens, F.
Vlasov, N. N.
Bussey, P. J.
Doyle, A. T.
Dunne, W.
Forrest, M.
Rosin, M.
Saxon, D. H.
Skillicorn, I. O.
Gialas, I.
Papageorgiu, K.
Holm, U.
Klanner, R.
Lohrmann, E.
Schleper, P.
Schoerner-Sadenius, T.
Sztuk, J.
Stadie, H.
Turcato, M.
Foudas, C.
Fry, C.
Long, K. R.
Tapper, A. D.
Matsumoto, T.
Nagano, K.
Tokushuku, K.
Yamada, S.
Yamazaki, Y.
Barakbaev, A. N.
Boos, E. G.
Pokrovskiy, N. S.
Zhautykov, B. O.
Aushev, V.
Bachynska, O.
Borodin, M.
Kadenko, I.
Kozulia, A.
Libov, V.
Lisovyi, M.
Lontkovskyi, D.
Makarenko, I.
Sorokin, Iu.
Verbytskyi, A.
Volynets, O.
Son, D.
de Favereau, J.
Piotrzkowski, K.
Barreiro, F.
Glasman, C.
Jimenez, M.
Labarga, L.
del Peso, J.
Ron, E.
Soares, M.
Terron, J.
Zambrana, M.
Corriveau, F.
Liu, C.
Schwartz, J.
Walsh, R.
Zhou, C.
Tsurugai, T.
Antonov, A.
Dolgoshein, B. A.
Gladkov, D.
Sosnovtsev, V.
Stifutkin, A.
Suchkov, S.
Dementiev, R. K.
Ermolov, P. F.
Gladilin, L. K.
Golubkov, Yu. A.
Khein, L. A.
Korzhavina, I. A.
Kuzmin, V. A.
Levchenko, B. B.
Lukina, O. Yu.
Proskuryakov, A. S.
Shcheglova, L. M.
Zotkin, D. S.
Abt, I.
Caldwell, A.
Kollar, D.
Reisert, B.
Schmidke, W. B.
Grigorescu, G.
Keramidas, A.
Koffeman, E.
Kooijman, P.
Pellegrino, A.
Tiecke, H.
Vazquez, M.
Wiggers, L.
Brummer, N.
Bylsma, B.
Durkin, L. S.
Lee, A.
Ling, T. Y.
Allfrey, P. D.
Bell, M. A.
Cooper-Sarkar, A. M.
Devenish, R. C. E.
Ferrando, J.
Foster, B.
Korcsak-Gorzo, K.
Oliver, K.
Robertson, A.
Uribe-Estrada, C.
Walczak, R.
Bertolin, A.
Dal Corso, F.
Dusini, S.
Longhin, A.
Stanco, L.
Bellan, P.
Brugnera, R.
Carlin, R.
Garfagnini, A.
Limentani, S.
Oh, B. Y.
Raval, A.
Ukleja, J.
Whitmore, J. J.
Iga, Y.
D'Agostini, G.
Marini, G.
Nigro, A.
Cole, J. E.
Hart, J. C.
Abramowicz, H.
Ingbir, R.
Kananov, S.
Levy, A.
Stern, A.
Kuze, M.
Maeda, J.
Hori, R.
Kagawa, S.
Okazaki, N.
Shimizu, S.
Tawara, T.
Hamatsu, R.
Kaji, H.
Kitamura, S.
Ota, O.
Ri, Y. D.
Costa, M.
Ferrero, M. I.
Monaco, V.
Sacchi, R.
Solano, A.
Arneodo, M.
Ruspa, M.
Fourletov, S.
Martin, J. F.
Stewart, T. P.
Boutle, S. K.
Butterworth, J. M.
Gwenlan, C.
Jones, T. W.
Loizides, J. H.
Wing, M.
Brzozowska, B.
Ciborowski, J.
Grzelak, G.
Kulinski, P.
Luzniak, P.
Malka, J.
Nowak, R. J.
Pawlak, J. M.
Tymieniecka, T.
Ukleja, A.
Zarnecki, A. F.
Adamus, M.
Plucinski, P.
Eisenberg, Y.
Hochman, D.
Karshon, U.
Brownson, E.
Danielson, T.
Everett, A.
Kcira, D.
Reeder, D. D.
Ryan, P.
Savin, A. A.
Smith, W. H.
Wolfe, H.
Bhadra, S.
Catterall, C. D.
Cui, Y.
Hartner, G.
Menary, S.
Noor, U.
Standage, J.
Whyte, J.
TI Production of excited charm and charm-strange mesons at HERA
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID DEEP-INELASTIC SCATTERING; CENTRAL TRACKING DETECTOR; ZEUS BARREL
CALORIMETER; HEAVY-QUARK SYMMETRY; LUND MONTE-CARLO; JET FRAGMENTATION;
PARTON DISTRIBUTIONS; RADIAL EXCITATION; HADRON-PRODUCTION; EP
COLLISIONS
AB The production of excited charm, D-1(2420)(0) and D-2*(2460)(0), and charm-strange, D-s1(2536)(+/-), mesons in ep collisions was measured with the ZEUS detector at HERA using an integrated luminosity of 126 pb(-1). Masses, widths and helicity parameters were determined. The measured yields were converted to the rates of c quarks hadronising as a given excited charm meson and to the ratios of the dominant D-2*(2460)(0) and D-s1(2536)(+/-), branching fractions. A search for the radially excited charm meson, D*'(2640)(+/-), was also performed. The results are compared with those measured previously and with theoretical expectations.
C1 [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.
[Antonioli, P.; Bari, G.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cindolo, F.; Corradi, M.; Iacobucci, G.; Margotti, A.; Nania, R.; Polini, A.; Bell, M. A.; Cooper-Sarkar, A. M.; Devenish, R. C. E.; Ferrando, J.; Foster, B.; Korcsak-Gorzo, K.; Oliver, K.; Robertson, A.; Uribe-Estrada, C.; Walczak, R.] Ist Nazl Fis Nucl, I-40126 Bologna, Italy.
[Antonelli, S.; Basile, M.; 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.; Jungst, M.; Nuncio-Quiroz, A. E.; Paul, E.; Samson, U.; Schoenberg, V.; Shehzadi, R.; Wlasenko, M.] Univ Bonn, Inst Phys, D-5300 Bonn, Germany.
[Brook, N. H.; Heath, G. P.; Morris, J. D.] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England.
[Capua, M.; Fazio, S.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dept Phys, I-87036 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, Kwangju, South Korea.
[Ibrahim, Z. A.; Kamaluddin, B.; Wan Abdullah, W. A. T.] 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.; Gil, M.; Olkiewicz, K.; Stopa, P.; Zawiejski, L.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Adamczyk, L.; Bold, T.; Grabowska-Bold, I.; Kisielewska, D.; Lukasik, J.; Przybycien, M.; Suszycki, L.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland.
[Kotanski, A.; Slominski, W.] Jagiellonian Univ, Dept Phys, Krakow, Poland.
[Behrens, U.; Blohm, C.; Bonato, A.; Borras, K.; Ciesielski, R.; Coppola, N.; Fang, S.; Fourletova, J.; Geiser, A.; Gottlicher, P.; Grebenyuk, J.; Gregor, I.; Haas, T.; Hain, W.; Huttmann, A.; Januschek, F.; Kahle, B.; Katkov, I. I.; Klein, U.; Kotz, U.; Kowalski, H.; Lobodzinska, E.; Lohr, B.; Mankel, R.; Melzer-Pellmann, I. -A.; Miglioranzi, S.; Montanari, A.; Namsoo, T.; Notz, D.; Parenti, A.; Rinaldi, L.; Roloff, P.; Rubinsky, I.; Santamarta, R.; Schneekloth, U.; Spiridonov, A.; Szuba, D.; Szuba, J.; Theedt, T.; Wolf, G.; Wrona, K.; Yagues Molina, A. G.; Youngman, C.; Zeuner, W.] DESY, D-2000 Hamburg, Germany.
[Lohr, B.; Drugakov, V.; Schlenstedt, S.] DESY, Zeuthen, Germany.
[Barbagli, G.; Gallo, E.] Ist Nazl Fis Nucl, I-50125 Florence, Italy.
[Pelfer, P. G.] Univ Florence, Florence, Italy.
[Bamberger, A.; Dobur, D.; Karstens, F.; Vlasov, N. N.] Ist Nazl Fis Nucl, I-50125 Florence, Italy.
[Bussey, P. J.; Doyle, A. T.; Dunne, W.; Forrest, M.; Rosin, M.; Saxon, D. H.; Skillicorn, I. O.] Univ Freiburg, Fak Phys, Freiburg, Germany.
[Bussey, P. J.; Doyle, A. T.; Dunne, W.; Forrest, M.; Rosin, M.; Saxon, D. H.; Skillicorn, I. O.] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland.
[Gialas, I.; Papageorgiu, K.] Univ Aegean, Dept Engn Management & Finance, Mitilini, Greece.
[Holm, U.; Klanner, R.; Lohrmann, E.; Schleper, P.; Schoerner-Sadenius, T.; Sztuk, J.; Stadie, H.; Turcato, M.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
[Foudas, C.; Fry, C.; Long, K. R.; Tapper, A. D.] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England.
[Matsumoto, T.; Nagano, K.; Tokushuku, K.; Yamada, S.; Yamazaki, Y.] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan.
[Barakbaev, A. N.; Boos, E. G.; Pokrovskiy, N. S.; Zhautykov, B. O.] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan.
[Aushev, V.; Bachynska, O.; Borodin, M.; Kadenko, I.; Kozulia, A.; Libov, V.; Lisovyi, M.; Lontkovskyi, D.; Makarenko, I.; Sorokin, Iu.; Verbytskyi, A.; Volynets, O.] Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, Ukraine.
[Aushev, V.; Bachynska, O.; Borodin, M.; Kadenko, I.; Kozulia, A.; Libov, V.; Lisovyi, M.; Lontkovskyi, D.; Makarenko, I.; Sorokin, Iu.; Verbytskyi, A.; Volynets, O.] Kiev Natl Univ, Kiev, Ukraine.
[Son, D.] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu, South Korea.
[de Favereau, J.; Piotrzkowski, K.] Catholic Univ Louvain, Inst Phys Nucl, B-1348 Louvain, Belgium.
[Barreiro, F.; Glasman, C.; Jimenez, M.; Labarga, L.; del Peso, J.; Ron, E.; Soares, M.; Terron, J.; Zambrana, M.] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain.
[Corriveau, F.; Liu, C.; Schwartz, J.; Walsh, R.; 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.; Kuzmin, V. 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.
[Abt, I.; Caldwell, A.; Kollar, D.; Reisert, B.; Schmidke, W. B.] Max Planck Inst Phys & Astrophys, Munich, Germany.
[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, Amsterdam, Netherlands.
[Brummer, N.; Bylsma, B.; Durkin, L. S.; Lee, A.; Ling, T. Y.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Allfrey, P. D.; Bell, M. A.; Cooper-Sarkar, A. M.; Devenish, R. C. E.; Ferrando, J.; Foster, B.; Korcsak-Gorzo, K.; Oliver, K.; Robertson, A.; Uribe-Estrada, C.; Walczak, R.] Univ Oxford, Dept Phys, Oxford, England.
[Long, K. R.; Bell, M. A.; Bertolin, A.; Dal Corso, F.; Dusini, S.; Stanco, L.; Brugnera, R.; Carlin, R.; Garfagnini, A.; Limentani, S.] Ist Nazl Fis Nucl, Padua, Italy.
[Bell, M. A.; Brugnera, R.; Carlin, R.; Garfagnini, A.; Limentani, S.] Univ Padua, Dipartimento Fis, Padua, Italy.
[Oh, B. Y.; Raval, A.; Ukleja, J.; Whitmore, J. J.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
[Iga, Y.] Polytech Univ, Sagamihara, Kanagawa, Japan.
[D'Agostini, G.; Marini, G.; Nigro, A.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[D'Agostini, G.; Marini, G.; Nigro, A.] Ist Nazl Fis Nucl, Rome, Italy.
[Cole, J. E.; Hart, J. C.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
[Abramowicz, H.; Ingbir, R.; Kananov, S.; Levy, A.; Stern, A.] Tel Aviv Univ, Sch Phys, Raymond & Beverly Sackler Fac Exact Sci, Tel Aviv, Israel.
[Kuze, M.; Maeda, J.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan.
[Hori, R.; Kagawa, S.; Okazaki, N.; Shimizu, S.; Tawara, T.] Univ Tokyo, Dept Phys, Tokyo 113, Japan.
[Hamatsu, R.; Kaji, H.; Kitamura, S.; Ota, O.; Ri, Y. D.] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan.
[Costa, M.; Ferrero, M. I.; Monaco, V.; Sacchi, R.; Solano, A.] Ist Nazl Fis Nucl, I-10125 Turin, Italy.
[Costa, M.; Ferrero, M. I.; Monaco, V.; Sacchi, R.; 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.; Gwenlan, C.; 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.; Tymieniecka, T.; Ukleja, A.; Zarnecki, A. F.] Warsaw Univ, Inst Expt Phys, Warsaw, Poland.
[Adamus, M.; Plucinski, P.] Inst Nucl Studies, PL-00681 Warsaw, Poland.
[Eisenberg, Y.; Hochman, D.; Karshon, U.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel.
[Brownson, E.; Danielson, T.; Everett, A.; Kcira, D.; Reeder, D. D.; Ryan, P.; Savin, A. A.; Smith, W. H.; Wolfe, H.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
[Bhadra, S.; Catterall, C. D.; Cui, Y.; Hartner, G.; Menary, S.; Noor, U.; Standage, J.; Whyte, J.] York Univ, Dept Phys, N York, ON M3J 1P3, Canada.
[Spiridonov, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Szuba, D.] INP, Krakow, Poland.
[Szuba, J.] AGH Univ Sci & Technol, FPACS, Krakow, Poland.
[Yamazaki, Y.] Max Planck Inst, Munich, Germany.
[Wing, M.] Univ Hamburg, Inst Exp Phys, Hamburg, Germany.
[Ciborowski, J.] Univ Lodz, PL-90131 Lodz, Poland.
RP Chekanov, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM tobias.haas@desy.de
RI De Pasquale, Salvatore/B-9165-2008; dusini, stefano/J-3686-2012; Capua,
Marcella/A-8549-2015; Levchenko, B./D-9752-2012; Proskuryakov,
Alexander/J-6166-2012; Dementiev, Roman/K-7201-2012; Korzhavina,
Irina/D-6848-2012; Wiggers, Leo/B-5218-2015; Tassi, Enrico/K-3958-2015;
IBRAHIM, ZAINOL ABIDIN/C-1121-2010; Fazio, Salvatore /G-5156-2010; WAN
ABDULLAH, WAN AHMAD TAJUDDIN/B-5439-2010; Doyle, Anthony/C-5889-2009;
Ferrando, James/A-9192-2012; Gladilin, Leonid/B-5226-2011
OI De Pasquale, Salvatore/0000-0001-9236-0748; dusini,
stefano/0000-0002-1128-0664; Capua, Marcella/0000-0002-2443-6525;
Arneodo, Michele/0000-0002-7790-7132; Longhin,
Andrea/0000-0001-9103-9936; Raval, Amita/0000-0003-0164-4337; Wiggers,
Leo/0000-0003-1060-0520; Doyle, Anthony/0000-0001-6322-6195; Ferrando,
James/0000-0002-1007-7816; Gladilin, Leonid/0000-0001-9422-8636
FU Marie Curie Actions Transfer of Knowledge [MTKD-CT-2004-517186]; Russian
Foundation for Basic Research [05-02-39028-NSFC-a]; Natural Sciences and
Engineering Research Council of Canada (NSERC); German Federal Ministry
for Education and Research (BMBF) [05 HZ6PDA, 05 HZ6GUA, 05 HZ6VFA, 05
HZ4KHA]; MINERVA Gesellschaft fur Forschung GmbH; Israel Science
Foundation [293/02-11.2]; U. S.-Israel Binational Science Foundation;
Israel Science Foundation; Italian National Institute for Nuclear
Physics (INFN); Japanese Ministry of Education, Culture, Sports, Science
and Technology (MEXT); Korean Ministry of Education and Korea Science
and Engineering Foundation; Netherlands Foundation for Research on
Matter (FOM); Polish State Committee for Scientific Research
[DESY/256/2006-154/DES/2006/03]; German Federal Ministry for Education
and Research (BMBF); RF [N 8122.2006.2]; Russian Ministry of Education
and Science; Spanish Ministry of Education and Science; Science and
Technology Facilities Council, UK; US Department of Energy; US National
Science Foundation; Polish Ministry of Science and Higher Education;
FNRS; Malaysian Ministry of Science, Technology and Innovation/Akademi
Sains Malaysia [SAGA 66-02-03-0048]
FX This work was supported in part by the Marie Curie Actions Transfer of
Knowledge project COCOS (contract MTKD-CT-2004-517186). Partly supported
by Russian Foundation for Basic Research grant no. 05-02-39028-NSFC-a.
Supported by the Natural Sciences and Engineering Research Council of
Canada (NSERC). Supported by the German Federal Ministry for Education
and Research (BMBF), under contract numbers 05 HZ6PDA, 05 HZ6GUA, 05
HZ6VFA and 05 HZ4KHA. Supported in part by the MINERVA Gesellschaft fur
Forschung GmbH, the Israel Science Foundation (grant no. 293/02-11.2)
and the U. S.-Israel Binational Science Foundation. Supported by the
Israel Science Foundation. Supported by the Italian National Institute
for Nuclear Physics (INFN). Supported by the Japanese Ministry of
Education, Culture, Sports, Science and Technology (MEXT) and its grants
for Scientific Research. Supported by the Korean Ministry of Education
and Korea Science and Engineering Foundation. Supported by the
Netherlands Foundation for Research on Matter (FOM). Supported by the
Polish State Committee for Scientific Research, project no.
DESY/256/2006-154/DES/2006/03. Partially supported by the German Federal
Ministry for Education and Research (BMBF). Supported by RF Presidential
grant N 8122.2006.2 for the leading scientific schools and by the
Russian Ministry of Education and Science through its grant for
Scientific Research on High Energy Physics. Supported by the Spanish
Ministry of Education and Science through funds provided by CICYT.
Supported by the Science and Technology Facilities Council, UK.
Supported by the US Department of Energy. Supported by the US National
Science Foundation. Any opinion, findings and conclusions or
recommendations expressed in this material are those of the authors and
do not necessarily reflect the views of the National Science Foundation.
Supported by the Polish Ministry of Science and Higher Education as a
scientific project (2006-2008). Supported by FNRS and its associated
funds (IISN and FRIA) and by an Inter-University Attraction Poles
Programme subsidised by the Belgian Federal Science Policy Office.
Supported by the Malaysian Ministry of Science, Technology and
Innovation/Akademi Sains Malaysia grant SAGA 66-02-03-0048.
NR 61
TC 20
Z9 20
U1 0
U2 7
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1434-6044
EI 1434-6052
J9 EUR PHYS J C
JI Eur. Phys. J. C
PD MAR
PY 2009
VL 60
IS 1
BP 25
EP 45
DI 10.1140/epjc/s10052-009-0881-x
PG 21
WC Physics, Particles & Fields
SC Physics
GA 413HK
UT WOS:000263783500003
ER
PT J
AU Berrah, N
Rolles, D
Pesic, ZD
Hoener, M
Zhang, H
Aguilar, A
Bilodeau, RC
Red, E
Bozek, JD
Kukk, E
Muino, RD
de Abajo, FJG
AF Berrah, N.
Rolles, D.
Pesic, Z. D.
Hoener, M.
Zhang, H.
Aguilar, A.
Bilodeau, R. C.
Red, E.
Bozek, J. D.
Kukk, E.
Muino, R. Diez
Garcia de Abajo, F. J.
TI Probing free xenon clusters from within
SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
LA English
DT Article
ID PHOTOELECTRON ANGULAR-DISTRIBUTIONS; SYNCHROTRON-RADIATION;
HIGH-RESOLUTION; ARGON CLUSTERS; ENERGY SHIFTS; XE CLUSTERS; SPECTRA;
KRYPTON; IONS; PHOTOIONIZATION
AB Inner-shell and valence-shell photoionization of van-der-Waals Xe clusters have been measured using both angle-resolved photoelectron spectroscopy and velocity map ion imaging technique. Both techniques have been used to probe the electronic properties and the fragmentation dynamics of clusters as a function of photon energy and cluster size. In particular, the evolution of the photoelectron angular distributions and partial cross sections as a function of photon energy and cluster size has revealed cluster size effects similar to the ones found in solids. Our cluster angular distribution parameters have been compared to the free atoms. In addition, the measurement of the fragmentation dynamic of the clusters seems to be photon energy dependent.
C1 [Berrah, N.; Rolles, D.; Pesic, Z. D.; Hoener, M.; Zhang, H.; Bilodeau, R. C.] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
[Rolles, D.; Pesic, Z. D.; Hoener, M.; Aguilar, A.; Bilodeau, R. C.; Red, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Bozek, J. D.] Stanford Linear Accelerator Ctr, Linac Coherent Light Source, Menlo Pk, CA 94025 USA.
[Kukk, E.] Univ Turku, Dept Phys, Turku 20014, Finland.
[Muino, R. Diez] EHU & DIPC, CSIC UPV, Ctr Mixto, Ctr Fis Mat, San Sebastian 20018, Spain.
[Garcia de Abajo, F. J.] CSIC, Inst Opt, E-28006 Madrid, Spain.
RP Berrah, N (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
EM nora.berrah@wmich.edu
RI Bozek, John/E-4689-2010; Diez Muino, Ricardo/C-9203-2009; Garcia de
Abajo, Javier/A-6095-2009; CSIC-UPV/EHU, CFM/F-4867-2012; Bozek,
John/E-9260-2010; DONOSTIA INTERNATIONAL PHYSICS CTR., DIPC/C-3171-2014
OI Bilodeau, Rene/0000-0001-8607-2328; Diez Muino,
Ricardo/0000-0001-8593-0327; Garcia de Abajo,
Javier/0000-0002-4970-4565; Bozek, John/0000-0001-7486-7238;
FU Office of Basic Energy Sciences, US Department of Energy, Chemical
Sciences, Geosciences and Biosciences Division; Alexander von Humboldt
foundation
FX The work was supported by the Office of Basic Energy Sciences, US
Department of Energy, Chemical Sciences, Geosciences and Biosciences
Division. DR is grateful to the Alexander von Humboldt foundation for
support through the Feodor Lynen program. We would also like to thank
the staff at the ALS for their assistance.
NR 43
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U1 0
U2 14
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1951-6355
J9 EUR PHYS J-SPEC TOP
JI Eur. Phys. J.-Spec. Top.
PD MAR
PY 2009
VL 169
BP 59
EP 65
DI 10.1140/epjst/e2009-00973-0
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 424IR
UT WOS:000264560900010
ER
PT J
AU Kreidi, K
Akoury, D
Jahnke, T
Weber, T
Staudte, A
Schoffler, M
Neumann, N
Titze, J
Schmidt, LPH
Czasch, A
Jagutzki, O
Fraga, RAC
Grisenti, RE
Muino, RD
Cherepkov, NA
Semenov, SK
Ranitovic, P
Cocke, CL
Osipov, T
Adaniya, H
Thompson, JC
Prior, MH
Belkacem, A
Landers, A
Schmidt-Bocking, H
Dorner, R
AF Kreidi, K.
Akoury, D.
Jahnke, T.
Weber, Th.
Staudte, A.
Schoeffler, M.
Neumann, N.
Titze, J.
Schmidt, L. Ph. H.
Czasch, A.
Jagutzki, O.
Fraga, R. A. Costa
Grisenti, R. E.
Muino, R. Diez
Cherepkov, N. A.
Semenov, S. K.
Ranitovic, P.
Cocke, C. L.
Osipov, T.
Adaniya, H.
Thompson, J. C.
Prior, M. H.
Belkacem, A.
Landers, A.
Schmidt-Boecking, H.
Doerner, R.
TI Single photon double ionization of H-2 by circularly polarized photons
at a photon energy of 160 eV
SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
LA English
DT Article
ID DOUBLE PHOTOIONIZATION; RECOIL-ION; ANGULAR-DISTRIBUTIONS; MOMENTUM
SPECTROSCOPY; ATOM INTERFEROMETER; INTERFERENCE; DICHROISM; MOLECULE;
N-2; FRAGMENTATION
AB We report on fully differential cross sections for double ionization of H-2 by a single circularly polarized photon of 160 eV energy. For an unequal sharing of the energy between the two electrons and a particular geometry where the influence of electron/electron interaction is constant, we find a four-lobe structure in the molecular frame angular distribution of the faster electron. This structure is interpreted to be due to a coherent emission of the electron from the two atomic centers of the molecule. This Young-type interference pattern is lost for other geometries, where electron-electron interaction plays a major role. Furthermore, we show that the interference structure depends strongly on the internuclear distance.
C1 [Kreidi, K.; Akoury, D.; Jahnke, T.; Staudte, A.; Neumann, N.; Titze, J.; Schmidt, L. Ph. H.; Czasch, A.; Jagutzki, O.; Fraga, R. A. Costa; Grisenti, R. E.; Schmidt-Boecking, H.; Doerner, R.] Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany.
[Kreidi, K.] DESY, D-22607 Hamburg, Germany.
[Weber, Th.; Schoeffler, M.; Osipov, T.; Adaniya, H.; Prior, M. H.; Belkacem, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Muino, R. Diez] Ctr Fis Mat, San Sebastian 20018, Spain.
[Muino, R. Diez] Donostia Int Phys Ctr, San Sebastian 20018, Spain.
[Cherepkov, N. A.; Semenov, S. K.] State Univ Aerosp Instrumentat, St Petersburg 190000, Russia.
[Ranitovic, P.; Cocke, C. L.] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA.
[Thompson, J. C.; Landers, A.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
RP Kreidi, K (reprint author), Univ Frankfurt, Inst Kernphys, Max von Laue Str 1, D-60438 Frankfurt, Germany.
EM doerner@atom.uni-frankfurt.de
RI Landers, Allen/C-1213-2013; Weber, Thorsten/K-2586-2013; ranitovic,
predrag/A-2282-2014; Schoeffler, Markus/B-6261-2008; DONOSTIA
INTERNATIONAL PHYSICS CTR., DIPC/C-3171-2014; Diez Muino,
Ricardo/C-9203-2009; Doerner, Reinhard/A-5340-2008; CSIC-UPV/EHU,
CFM/F-4867-2012
OI Staudte, Andre/0000-0002-8284-3831; Weber, Thorsten/0000-0003-3756-2704;
Schoeffler, Markus/0000-0001-9214-6848; Diez Muino,
Ricardo/0000-0001-8593-0327; Doerner, Reinhard/0000-0002-3728-4268;
FU Deutsche Forschungsgemeinschaft; US DOE [DE-AC03-76SF00098]
FX We are indebted to Bill McCurdy, Tom Rescigno, Michael Walter, John
Briggs, Anatoli Kheifets, Uwe Becker, Daniel Rolles, Erich Joos, Kiyoshi
Ueda, Markus Arndt, Markus Aspelmeyer for enlightening discussions. We
acknowledge outstanding support by the sta. of the Advanced Lights
Source in particular by Elke Arenholz, Tony Young, Hendrik Bluhm and
Tolek Tyliszczak. The work was supported by the Deutsche
Forschungsgemeinschaft and by the Office of Basic Energy Sciences,
Division of Chemical Sciences of the US DOE under contract
DE-AC03-76SF00098.
NR 59
TC 2
Z9 2
U1 0
U2 4
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1951-6355
J9 EUR PHYS J-SPEC TOP
JI Eur. Phys. J.-Spec. Top.
PD MAR
PY 2009
VL 169
BP 109
EP 116
DI 10.1140/epjst/e2009-00979-6
PG 8
WC Physics, Multidisciplinary
SC Physics
GA 424IR
UT WOS:000264560900016
ER
PT J
AU Bozek, JD
AF Bozek, J. D.
TI AMO instrumentation for the LCLS X-ray FEL
SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
LA English
DT Article
ID RESOLUTION
AB Instrumentation is being developed to conduct atomic, molecular and optical science experiments at the Linac Coherent Light Source x-ray free electron laser at the Stanford Linear Accelerator Center. This suite of instruments will be used to study the interaction of the very intense x-ray beam with the simplest forms of matter, namely atoms, molecules and clusters. The instrumentation will be ready for the start of operations of the facility in August 2009.
C1 Stanford Linear Accelerator Ctr, LCLS, Menlo Pk, CA 94025 USA.
RP Bozek, JD (reprint author), Stanford Linear Accelerator Ctr, LCLS, Menlo Pk, CA 94025 USA.
EM jdbozek@slac.stanford.edu
RI Bozek, John/E-4689-2010; Bozek, John/E-9260-2010
OI Bozek, John/0000-0001-7486-7238
FU U.S. Department of Energy [DE-AC02-76SF00515]
FX Work supported by the U.S. Department of Energy under contract number
DE-AC02-76SF00515. The assitance of the LCLS AMO Instrument Team Leaders
Louis DiMauro and Nora Berrah is acknowledged as is the effort of the
LCLS AMO design team.
NR 8
TC 91
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U1 0
U2 14
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1951-6355
J9 EUR PHYS J-SPEC TOP
JI Eur. Phys. J.-Spec. Top.
PD MAR
PY 2009
VL 169
BP 129
EP 132
DI 10.1140/epjst/e2009-00982-y
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 424IR
UT WOS:000264560900019
ER
PT J
AU Richter, MC
Mariot, JM
Heckmann, O
Kjeldgaard, L
Mun, BS
Fadley, CS
Luders, U
Bobo, JF
De Padova, P
Taleb-Ibrahimi, A
Hricovini, K
AF Richter, M. C.
Mariot, J. -M.
Heckmann, O.
Kjeldgaard, L.
Mun, B. S.
Fadley, C. S.
Lueders, U.
Bobo, J. -F.
De Padova, P.
Taleb-Ibrahimi, A.
Hricovini, K.
TI NiFe2O4 and Fe3O4 studied by XMCD and resonant photoemission
SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
LA English
DT Article
ID MAGNETIC CIRCULAR-DICHROISM
AB X-ray magnetic circular dichroism and resonant photoemission at the Fe and Ni L-2,L-3 edges have been used to investigate the electronic structure of NiFe2O4 (NFO) thin films. The results, when compared to those obtained on Fe3O4, indicate that in a 12 nm NFO film the Ni atoms occupy mainly B sites, as in bulk NFO, and that a decrease in the thickness of the film results in a modi. cation of the nickel hybridization.
C1 [Richter, M. C.; Heckmann, O.; Hricovini, K.] Univ Cergy Pontoise, Lab Phys Met & Surfaces, F-95031 Cergy Pontoise, France.
[Mariot, J. -M.] Univ Paris 06, Lab Chim Phys Mat & Rayonnement, UMR 7614, F-75231 Paris 05, France.
[Kjeldgaard, L.] Lund Univ, Max Lab, S-22100 Lund, Sweden.
[Mun, B. S.] Hanyang Univ, Dept Appl Phys, Ansan 426791, South Korea.
[Fadley, C. S.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Fadley, C. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Lueders, U.] Univ Caen, Lab CRISMAT, UMR 6508, ENSICAEN,CNRS, F-14050 Caen 4, France.
[Lueders, U.; Bobo, J. -F.] CNRS ONERA, Phys Mat Condensee Lab, FRE 2686, F-31400 Toulouse, France.
[De Padova, P.] Ist Struttura Mat, I-00133 Rome, Italy.
[Taleb-Ibrahimi, A.] Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France.
RP Richter, MC (reprint author), Univ Cergy Pontoise, Lab Phys Met & Surfaces, 5 Mail Gay Lussac, F-95031 Cergy Pontoise, France.
RI MSD, Nanomag/F-6438-2012; Mun, Bongjin /G-1701-2013
FU ALS; Elettra; MAX-lab; European Community-Research Infrastructure Action
[R II 3-CT-2004-506008]
FX The authors would like to acknowledge the ALS (beamline 9.3.2), Elettra
(Circular Polarized beamline) and MAX-lab (beamline I511) staff for
support and hospitality. This work was supported by the European
Community-Research Infrastructure Action under the FP6 "Structuring the
European Research Area" Programme (through the Integrated Infrastructure
Initiative "Integrating Activity on Synchrotron and Free Electron Laser
Science-Contract R II 3-CT-2004-506008").
NR 9
TC 6
Z9 6
U1 2
U2 27
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1951-6355
J9 EUR PHYS J-SPEC TOP
JI Eur. Phys. J.-Spec. Top.
PD MAR
PY 2009
VL 169
BP 175
EP 180
DI 10.1140/epjst/e2009-00989-4
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 424IR
UT WOS:000264560900026
ER
PT J
AU van der Laan, G
Arenholz, E
AF van der Laan, G.
Arenholz, E.
TI Anisotropic X-ray magnetic linear dichroism Its importance for the
analysis of soft x-ray spectra of magnetic oxides
SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
LA English
DT Article
ID ABSORPTION-SPECTRA; FILMS; DEPENDENCE; MOMENTS; SURFACE
AB Using spectroscopic information for x ray magnetometry and magnetic microscopy requires detailed theoretical understanding of spectral shape and magnitude of dichroism signals. We have shown unambiguously that-contrary to common belief-spectral shape and magnitude of x ray magnetic linear dichroism (XMLD) are not only determined by the relative orientation of magnetic moments and x ray polarization, but also their orientations relative to the crystallographic axes must be taken into account for accurate interpretation of XMLD data.
C1 [van der Laan, G.] Harwell Sci & Innovat Ctr, Didcot OX11 0DE, Oxon, England.
[Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP van der Laan, G (reprint author), Harwell Sci & Innovat Ctr, Didcot OX11 0DE, Oxon, England.
EM g.vanderlaan@dl.ac.uk
OI van der Laan, Gerrit/0000-0001-6852-2495
FU U. S. Department of Energy [DE-AC02-05CH11231]
FX The Advanced Light Source is supported by the Director, Office of
Science, Office of Basic Energy Sciences, of the U. S. Department of
Energy under Contract No. DE-AC02-05CH11231.
NR 22
TC 4
Z9 4
U1 3
U2 11
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1951-6355
J9 EUR PHYS J-SPEC TOP
JI Eur. Phys. J.-Spec. Top.
PD MAR
PY 2009
VL 169
BP 187
EP 190
DI 10.1140/epjst/e2009-00991-x
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 424IR
UT WOS:000264560900028
ER
PT J
AU Piro, L
den Herder, J
Ohashi, T
Amati, L
Atteia, JL
Barthelmy, S
Barbera, M
Barret, D
Basso, S
Boer, M
Borgani, S
Boyarskiy, O
Branchini, E
Branduardi-Raymont, G
Briggs, M
Brunetti, G
Budtz-Jorgensen, C
Burrows, D
Campana, S
Caroli, E
Chincarini, G
Christensen, F
Cocchi, M
Comastri, A
Corsi, A
Cotroneo, V
Conconi, P
Colasanti, L
Cusumano, G
de Rosa, A
Del Santo, M
Ettori, S
Ezoe, Y
Ferrari, L
Feroci, M
Finger, M
Fishman, G
Fujimoto, R
Galeazzi, M
Galli, A
Gatti, F
Gehrels, N
Gendre, B
Ghirlanda, G
Ghisellini, G
Giommi, P
Girardi, M
Guzzo, L
Haardt, F
Hepburn, I
Hermsen, W
Hoevers, H
Holland, A
in't Zand, J
Ishisaki, Y
Kawahara, H
Kawai, N
Kaastra, J
Kippen, M
de Korte, PAJ
Kouveliotou, C
Kusenko, A
Labanti, C
Lieu, R
Macculi, C
Makishima, K
Matt, G
Mazzotta, P
McCammon, D
Mendez, M
Mineo, T
Mitchell, S
Mitsuda, K
Molendi, S
Moscardini, L
Mushotzky, R
Natalucci, L
Nicastro, F
O'Brien, P
Osborne, J
Paerels, F
Page, M
Paltani, S
Pareschi, G
Perinati, E
Perola, C
Ponman, T
Rasmussen, A
Roncarelli, M
Rosati, P
Ruchayskiy, O
Quadrini, E
Sakurai, I
Salvaterra, R
Sasaki, S
Sato, G
Schaye, J
Schmitt, J
Sciortino, S
Shaposhnikov, M
Shinozaki, K
Spiga, D
Suto, Y
Tagliaferri, G
Takahashi, T
Takei, Y
Tawara, Y
Tozzi, P
Tsunemi, H
Tsuru, T
Ubertini, P
Ursino, E
Viel, M
Vink, J
White, N
Willingale, R
Wijers, R
Yoshikawa, K
Yamasaki, N
AF Piro, L.
den Herder, J. W.
Ohashi, T.
Amati, L.
Atteia, J. L.
Barthelmy, S.
Barbera, M.
Barret, D.
Basso, S.
Boer, M.
Borgani, S.
Boyarskiy, O.
Branchini, E.
Branduardi-Raymont, G.
Briggs, M.
Brunetti, G.
Budtz-Jorgensen, C.
Burrows, D.
Campana, S.
Caroli, E.
Chincarini, G.
Christensen, F.
Cocchi, M.
Comastri, A.
Corsi, A.
Cotroneo, V.
Conconi, P.
Colasanti, L.
Cusumano, G.
de Rosa, A.
Del Santo, M.
Ettori, S.
Ezoe, Y.
Ferrari, L.
Feroci, M.
Finger, M.
Fishman, G.
Fujimoto, R.
Galeazzi, M.
Galli, A.
Gatti, F.
Gehrels, N.
Gendre, B.
Ghirlanda, G.
Ghisellini, G.
Giommi, P.
Girardi, M.
Guzzo, L.
Haardt, F.
Hepburn, I.
Hermsen, W.
Hoevers, H.
Holland, A.
in't Zand, J.
Ishisaki, Y.
Kawahara, H.
Kawai, N.
Kaastra, J.
Kippen, M.
de Korte, P. A. J.
Kouveliotou, C.
Kusenko, A.
Labanti, C.
Lieu, R.
Macculi, C.
Makishima, K.
Matt, G.
Mazzotta, P.
McCammon, D.
Mendez, M.
Mineo, T.
Mitchell, S.
Mitsuda, K.
Molendi, S.
Moscardini, L.
Mushotzky, R.
Natalucci, L.
Nicastro, F.
O'Brien, P.
Osborne, J.
Paerels, F.
Page, M.
Paltani, S.
Pareschi, G.
Perinati, E.
Perola, C.
Ponman, T.
Rasmussen, A.
Roncarelli, M.
Rosati, P.
Ruchayskiy, O.
Quadrini, E.
Sakurai, I.
Salvaterra, R.
Sasaki, S.
Sato, G.
Schaye, J.
Schmitt, J.
Sciortino, S.
Shaposhnikov, M.
Shinozaki, K.
Spiga, D.
Suto, Y.
Tagliaferri, G.
Takahashi, T.
Takei, Y.
Tawara, Y.
Tozzi, P.
Tsunemi, H.
Tsuru, T.
Ubertini, P.
Ursino, E.
Viel, M.
Vink, J.
White, N.
Willingale, R.
Wijers, R.
Yoshikawa, K.
Yamasaki, N.
TI EDGE: Explorer of diffuse emission and gamma-ray burst explosions
SO EXPERIMENTAL ASTRONOMY
LA English
DT Article
DE X-rays; Cosmology; Clusters; Gamma-ray bursts; Warm-hot intergalactic
medium; Missions
ID GALAXY CLUSTERS; ABSORPTION; TEMPERATURE
AB How structures of various scales formed and evolved from the early Universe up to present time is a fundamental question of astrophysical cosmology. EDGE (Piro et al., 2007) will trace the cosmic history of the baryons from the early generations of massive stars by Gamma-Ray Burst (GRB) explosions, through the period of galaxy cluster formation, down to the very low redshift Universe, when between a third and one half of the baryons are expected to reside in cosmic filaments undergoing gravitational collapse by dark matter (the so-called warm hot intragalactic medium). In addition EDGE, with its unprecedented capabilities, will provide key results in many important fields. These scientific goals are feasible with a medium class mission using existing technology combined with innovative instrumental and observational capabilities by: (a) observing with fast reaction Gamma-Ray Bursts with a high spectral resolution. This enables the study of their star-forming and host galaxy environments and the use of GRBs as back lights of large scale cosmological structures; (b) observing and surveying extended sources (galaxy clusters, WHIM) with high sensitivity using two wide field of view X-ray telescopes (one with a high angular resolution and the other with a high spectral resolution). The mission concept includes four main instruments: a Wide-field Spectrometer (0.1-2.2 eV) with excellent energy resolution (3 eV at 0.6 keV), a Wide-Field Imager (0.3-6 keV) with high angular resolution (HPD = 15") constant over the full 1.4 degree field of view, and a Wide Field Monitor (8-200 keV) with a FOV of A1/4 of the sky, which will trigger the fast repointing to the GRB. Extension of its energy response up to 1 MeV will be achieved with a GRB detector with no imaging capability. This mission is proposed to ESA as part of the Cosmic Vision call. We will outline the science drivers and describe in more detail the payload of this mission.
C1 [Piro, L.; Cocchi, M.; Corsi, A.; Colasanti, L.; de Rosa, A.; Del Santo, M.; Feroci, M.; Galli, A.; Gendre, B.; Macculi, C.; Natalucci, L.; Ubertini, P.] Ist Astrofis Spaziale Fis Cosm, INAF, Rome, Italy.
[den Herder, J. W.; Hermsen, W.; Hoevers, H.; in't Zand, J.; Kaastra, J.; de Korte, P. A. J.; Mendez, M.; Takei, Y.] SRON Netherlands Inst Space Res, SRON, NL-3854 CA Utrecht, Netherlands.
[Ohashi, T.; Sasaki, S.; Shinozaki, K.] Tokyo Metropolitan Univ, Tokyo 158, Japan.
[Amati, L.; Caroli, E.; Labanti, C.] Ist Astrofis Spaziale Fis Cosm, INAF, Bologna, Italy.
[Barthelmy, S.; Gehrels, N.; Mushotzky, R.; Sato, G.; White, N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cusumano, G.; Mineo, T.; Perinati, E.] Ist Astrofis Spaziale Fis Cosm, INAF, Palermo, Italy.
[Atteia, J. L.] Observ Midi Pyrenees, LAT, F-31400 Toulouse, France.
[Barret, D.] Ctr Etud Spatiale Rayonnements, Toulouse, France.
[Basso, S.; Campana, S.; Chincarini, G.; Cotroneo, V.; Conconi, P.; Ghirlanda, G.; Ghisellini, G.; Guzzo, L.; Pareschi, G.; Spiga, D.; Tagliaferri, G.] Osserv Astron Brera, INAF, Milan, Italy.
[Borgani, S.; Girardi, M.; Tozzi, P.; Viel, M.] Osserv Astron Trieste, INAF, Trieste, Italy.
[Branchini, E.; Matt, G.; Perola, C.] Univ Roma III, Rome, Italy.
[Briggs, M.; Lieu, R.] Univ Alabama Huntsville, Huntsville, AL USA.
[Budtz-Jorgensen, C.; Christensen, F.] Tech Univ Denmark, DNSC, Copenhagen, Denmark.
[Burrows, D.] Penn State Univ, Philadelphia, PA USA.
[Comastri, A.; Ettori, S.; Roncarelli, M.] Osservatorio Astron Bologna, INAF, Bologna, Italy.
[Ferrari, L.; Gatti, F.] Ist Nazl Fis Nucl, I-16146 Genoa, Italy.
[Finger, M.] NASA, George C Marshall Space Flight Ctr, Univ Space Res Assoc, Huntsville, AL 35812 USA.
[Fishman, G.; Kouveliotou, C.; Mitchell, S.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
[Galeazzi, M.; Ursino, E.] Univ Miami, Miami, FL USA.
[Ishisaki, Y.; Sakurai, I.; Tawara, Y.] Nagoya Univ, Nagoya, Aichi 4648601, Japan.
[Kawai, N.] Tokyo Inst Technol, Tokyo 152, Japan.
[Kippen, M.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Ezoe, Y.; Fujimoto, R.; Mitsuda, K.; Takahashi, T.; Yamasaki, N.] JAXA, Inst Space & Aeronaut Sci, Tokyo, Japan.
[Molendi, S.; Quadrini, E.] Ist Astrofis Spaziale Fis Cosm, INAF, Milan, Italy.
[Rasmussen, A.] KIPAC Stand, Palo Alto, CA USA.
[Kawahara, H.; Suto, Y.; Yoshikawa, K.] Univ Tokyo, Tokyo, Japan.
[Paerels, F.] Columbia Univ, New York, NY USA.
[Schaye, J.] Leiden Univ, Leiden, Netherlands.
[Mazzotta, P.] Univ Roma Tor Vergata, Rome, Italy.
[Rosati, P.] ESO, Garching, Germany.
[Boer, M.] Observ Haute Provence, St Michel, Haute Provence, France.
[O'Brien, P.; Osborne, J.; Willingale, R.] Univ Leicester, Leicester, Leics, England.
[Wijers, R.] Univ Amsterdam, Amsterdam, Netherlands.
[Boyarskiy, O.] CERN, Geneva, Switzerland.
[Haardt, F.; Salvaterra, R.] Univ Insubria Como, Como, Italy.
[Kusenko, A.] Univ Calif Los Angeles, Los Angeles, CA USA.
[Paltani, S.] Integral Sci Data Ctr, Versoix, Switzerland.
[Ruchayskiy, O.] Inst Hautes Etud Sci, F-91440 Bures Sur Yvette, France.
[Shaposhnikov, M.] Ecole Polytech Fed Lausanne, Lausanne, Switzerland.
[Schmitt, J.] Univ Hamburg, Hamburg, Germany.
[Tsuru, T.] Kyoto Univ, Kyoto, Japan.
[Vink, J.] Univ Utrecht, Utrecht, Netherlands.
[Giommi, P.] ASI Data Ctr, Rome, Italy.
[Makishima, K.] Tokyo Univ Sci, Tokyo 162, Japan.
[McCammon, D.] Univ Wisconsin, Madison, WI USA.
[Tsunemi, H.] Osaka Univ, Osaka, Japan.
[Brunetti, G.] IRA Bologna, INAF, Bologna, Italy.
[Moscardini, L.] Univ Bologna, Bologna, Italy.
[Barbera, M.] Univ Palermo, Dipartimento Sci Fis & Astron, Palermo, Italy.
[Nicastro, F.] Osserv Astron Roma, INAF, I-00136 Rome, Italy.
[Sciortino, S.] Osserv Astron Palermo, INAF, Palermo, Italy.
[Ponman, T.] Univ Birmingham, Birmingham, W Midlands, England.
[Branduardi-Raymont, G.; Hepburn, I.; Page, M.] UCL, Mullard Space Sci Lab, London, England.
[Holland, A.] Brunel Univ, London, England.
RP Piro, L (reprint author), Ist Astrofis Spaziale Fis Cosm, INAF, Rome, Italy.
EM luigi.piro@iasf-roma.inaf.it
RI Mazzotta, Pasquale/B-1225-2016; Caroli, Ezio/G-1427-2012; Yamasaki,
Noriko/C-2252-2008; White, Nicholas/B-6428-2012; Barthelmy,
Scott/D-2943-2012; Amati, Lorenzo/N-5586-2015; Comastri,
Andrea/O-9543-2015; Gehrels, Neil/D-2971-2012; Mendez,
Mariano/C-8011-2012; Gatti, Flavio/K-4568-2013; gendre,
bruce/O-2923-2013; PIRO, LUIGI/E-4954-2013; Mitsuda,
Kazuhisa/C-2649-2008; Ruchayskiy, Oleg/E-3698-2015; Ettori,
Stefano/N-5004-2015
OI Borgani, Stefano/0000-0001-6151-6439; Molendi,
Silvano/0000-0002-2483-278X; Tagliaferri, Gianpiero/0000-0003-0121-0723;
Schaye, Joop/0000-0002-0668-5560; Ghirlanda,
Giancarlo/0000-0001-5876-9259; Ghisellini, Gabriele/0000-0002-0037-1974;
giommi, paolo/0000-0002-2265-5003; Barbera, Marco/0000-0002-3188-7420;
Wijers, Ralph/0000-0002-3101-1808; Nicastro,
Fabrizio/0000-0002-6896-1364; Salvaterra, Ruben/0000-0002-9393-8078;
Pareschi, Giovanni/0000-0003-3967-403X; Macculi,
Claudio/0000-0002-7887-1485; Branchini, Enzo/0000-0002-0808-6908;
Mazzotta, Pasquale/0000-0002-5411-1748; Spiga,
Daniele/0000-0003-1163-7843; Caroli, Ezio/0000-0001-8468-7433; Del
Santo, Melania/0000-0002-1793-1050; Viel, Matteo/0000-0002-2642-5707;
Mineo, Teresa/0000-0002-4931-8445; Labanti, Claudio/0000-0002-5086-3619;
Feroci, Marco/0000-0002-7617-3421; Cusumano,
Giancarlo/0000-0002-8151-1990; Brunetti, Gianfranco/0000-0003-4195-8613;
White, Nicholas/0000-0003-3853-3462; Amati, Lorenzo/0000-0001-5355-7388;
Comastri, Andrea/0000-0003-3451-9970; Mendez,
Mariano/0000-0003-2187-2708; gendre, bruce/0000-0002-9077-2025; PIRO,
LUIGI/0000-0003-4159-3984; Ruchayskiy, Oleg/0000-0001-8073-3068; Ettori,
Stefano/0000-0003-4117-8617
FU Italian space agency (ASI)
FX The EDGE mission has been proposed to ESA as a medium class mission in
the Cosmic Vision program. A large group of scientist from Europe, Japan
and the USA has contributed to this proposal (see
http://projects.iasf-roma.inaf.it/edge for the proposal proper). In
addition the authors like to acknowledge the support of the Italian
space agency (ASI) and the assistance of Thales Alenia Space for
detailed technical assessment.
NR 20
TC 16
Z9 16
U1 0
U2 4
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0922-6435
EI 1572-9508
J9 EXP ASTRON
JI Exp. Astron.
PD MAR
PY 2009
VL 23
IS 1
BP 67
EP 89
DI 10.1007/s10686-008-9092-y
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 409KZ
UT WOS:000263505900005
ER
PT J
AU Arnaud, M
Barcons, X
Barret, D
Bautz, M
Bellazzini, R
Bleeker, J
Bohringer, H
Boller, T
Brandt, WN
Cappi, M
Carrera, F
Comastri, A
Costa, E
Courvoisier, T
de Korte, P
Dwelly, T
Fabian, A
Flanagan, K
Gilli, R
Griffiths, R
Hasinger, G
Kaastra, J
Kahn, S
Kelley, R
Kunieda, H
Makishima, K
Matt, G
Mendez, M
Mitsuda, K
Nandra, K
Ohashi, T
Page, M
Palumbo, G
Pavlinsky, M
Sciortino, S
Smith, A
Struder, L
Takahashi, T
Turler, M
Turler, M
Ueda, Y
Vignali, C
Vink, J
Warwick, R
Watson, M
Willingale, R
Zhang, SN
AF Arnaud, Monique
Barcons, Xavier
Barret, Didier
Bautz, Marshall
Bellazzini, Ronaldo
Bleeker, Johan
Boehringer, Hans
Boller, Thomas
Brandt, William Nielsen
Cappi, Massimo
Carrera, Francisco
Comastri, Andrea
Costa, Enrico
Courvoisier, Thierry
de Korte, Piet
Dwelly, Tom
Fabian, Andrew
Flanagan, Kathryn
Gilli, Roberto
Griffiths, Richard
Hasinger, Gunther
Kaastra, Jelle
Kahn, Steve
Kelley, Richard
Kunieda, Hideyo
Makishima, Kazuo
Matt, Giorgio
Mendez, Mariano
Mitsuda, Kazuhisa
Nandra, Kirpal
Ohashi, Takaya
Page, Mathew
Palumbo, Giorgio
Pavlinsky, Mikhail
Sciortino, Salvatore
Smith, Alan
Strueder, Lothar
Takahashi, Tadayuki
Tuerler, Marc
Tuerner, Martin
Ueda, Yoshihiro
Vignali, Cristian
Vink, Jacco
Warwick, Robert
Watson, Mike
Willingale, Richard
Zhang, Shuang Nan
TI XEUS: the physics of the hot evolving universe
SO EXPERIMENTAL ASTRONOMY
LA English
DT Article
DE XEUS; Cosmic vision; X-ray astronomy
ID BLACK-HOLES; RAY; SPECTRUM; DETECTOR; OPTICS
AB This paper describes the next generation X-ray observatory XEUS which has been submitted to the European Space Agency in the framework of the Cosmic Vision 2015-2025 competition and has been selected for an assessment study. The paper summarizes the scientific goals and instrumental concepts of the proposed X-ray telescope with 5 m(2) effective area and angular resolution better than 5 arc sec.
C1 [Arnaud, Monique] CEA Saclay, CEA, DSM, DAPNIA,SAP, F-91191 Gif Sur Yvette, France.
[Barcons, Xavier; Carrera, Francisco] CSIC UC, IFCA, Santander, Spain.
[Barret, Didier] UPS, CNRS, CESR, Toulouse, France.
[Bautz, Marshall] MIT, Cambridge, MA 02139 USA.
[Bellazzini, Ronaldo] Ist Nazl Fis Nucl, Pisa, Italy.
[Bleeker, Johan; de Korte, Piet; Kaastra, Jelle] U Utrecht, SRON, Utrecht, Netherlands.
[Boehringer, Hans; Boller, Thomas; Hasinger, Gunther; Strueder, Lothar] MPE, Garching, Germany.
[Brandt, William Nielsen] Penn State Univ, University Pk, PA 16802 USA.
[Cappi, Massimo] IASF, INAF, Bologna, Italy.
[Comastri, Andrea; Gilli, Roberto] Oss Astron Bologna, INAF, Bologna, Italy.
[Costa, Enrico] IASF, INAF, Rome, Italy.
[Courvoisier, Thierry; Tuerler, Marc] ISDC, Geneva, Switzerland.
[Flanagan, Kathryn] STScI, Baltimore, MD USA.
[Griffiths, Richard] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Kahn, Steve] Stanford Univ, SLAC, KIPAC, Stanford, CA 94305 USA.
[Kelley, Richard] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Kunieda, Hideyo] Nagoya Univ, Nagoya, Aichi 4648601, Japan.
[Makishima, Kazuo] Univ Tokyo, Tokyo, Japan.
[Matt, Giorgio] U Roma Tre, Rome, Italy.
[Mendez, Mariano] Univ Groningen, Kapteyn Astron Inst, Groningen, Netherlands.
[Mitsuda, Kazuhisa; Takahashi, Tadayuki] JAXA, ISAS, Sagamihara, Kanagawa, Japan.
[Ohashi, Takaya] Tokyo Metropolitan Univ, Tokyo 158, Japan.
[Page, Mathew; Smith, Alan] UCL, MSSL, Dorking, Surrey, England.
[Palumbo, Giorgio; Vignali, Cristian] Univ Bologna, Bologna, Italy.
[Pavlinsky, Mikhail] IKI, Moscow, Russia.
[Sciortino, Salvatore] Oss Astron, INAF, Palermo, Italy.
[Tuerner, Martin; Warwick, Robert; Watson, Mike; Willingale, Richard] Univ Leicester, Leicester, Leics, England.
[Ueda, Yoshihiro] Kyoto Univ, Kyoto, Japan.
[Vink, Jacco] Univ Utrecht, Utrecht, Netherlands.
[Zhang, Shuang Nan] Tsinghua Univ, IHEP, Beijing 100084, Peoples R China.
[Nandra, Kirpal] Univ London Imperial Coll Sci Technol & Med, London, England.
[Dwelly, Tom] Univ Southampton, Southampton SO9 5NH, Hants, England.
[Fabian, Andrew] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
RP Gilli, R (reprint author), Oss Astron Bologna, INAF, Bologna, Italy.
EM roberto.gilli@oabo.inaf.it
RI Vignali, Cristian/J-4974-2012; Mendez, Mariano/C-8011-2012; Mitsuda,
Kazuhisa/C-2649-2008; Barcons, Xavier/L-3335-2014; Cappi,
Massimo/F-4813-2015; Brandt, William/N-2844-2015; Comastri,
Andrea/O-9543-2015; Gilli, Roberto/P-1110-2015;
OI Vignali, Cristian/0000-0002-8853-9611; Cappi,
Massimo/0000-0001-6966-8920; Mendez, Mariano/0000-0003-2187-2708;
Barcons, Xavier/0000-0003-1081-8861; Brandt,
William/0000-0002-0167-2453; Comastri, Andrea/0000-0003-3451-9970;
Gilli, Roberto/0000-0001-8121-6177; Costa, Enrico/0000-0003-4925-8523
FU XEUS Science Advisory Group; ESA International Space Station
FX The authors wish to express their appreciation to all those scientists
who supported XEUS throughout the years and contributed with suggestions
and constructive criticism to the writing of this final proposal. Each
author acknowledges partial financial support from their national
institutions and agencies from the birth of the original idea to the
completion of the proposal, and A. Parmar for acting as a very helpful
secretary of the XEUS Science Advisory Group. G. G. C. P. gratefully
acknowledges the enthusiastic support from ESA International Space
Station department during the early phases of the XEUS concept growth.
Without their help XEUS probably would have never made it to
successfully respond to the Cosmic Vision call.
NR 23
TC 4
Z9 4
U1 1
U2 5
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0922-6435
EI 1572-9508
J9 EXP ASTRON
JI Exp. Astron.
PD MAR
PY 2009
VL 23
IS 1
BP 139
EP 168
DI 10.1007/s10686-008-9104-y
PG 30
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 409KZ
UT WOS:000263505900008
ER
PT J
AU Falvor, R
Campisi, J
AF Falvor, Richard
Campisi, Judith
TI Dr. Paola Timiras Obituary
SO EXPERIMENTAL GERONTOLOGY
LA English
DT Biographical-Item
C1 [Falvor, Richard] Univ N Carolina, Dept Cell & Mol Physiol, Sch Med, Chapel Hill, NC 27599 USA.
[Campisi, Judith] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
RP Falvor, R (reprint author), Univ N Carolina, Dept Cell & Mol Physiol, Sch Med, 51 Med Sci Res Bldg,CB 7545, Chapel Hill, NC 27599 USA.
EM falvo@med.unc.edu; jcampisi@lbl.gov
NR 1
TC 0
Z9 0
U1 0
U2 0
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0531-5565
J9 EXP GERONTOL
JI Exp. Gerontol.
PD MAR
PY 2009
VL 44
IS 3
BP 135
EP 135
DI 10.1016/j.exger.2008.12.002
PG 1
WC Geriatrics & Gerontology
SC Geriatrics & Gerontology
GA 416ZX
UT WOS:000264045300001
ER
PT J
AU Shudo, E
Ribeiro, RM
Perelson, AS
AF Shudo, Emi
Ribeiro, Ruy M.
Perelson, Alan S.
TI Modeling HCV kinetics under therapy using PK and PD information
SO EXPERT OPINION ON DRUG METABOLISM & TOXICOLOGY
LA English
DT Review
DE direct antivirals; hepatitis C virus; IFN; mathematical modeling; NS3/4A
protease inhibitor; NS5B polymerase inhibitor; PEG-IFN
ID HEPATITIS-C VIRUS; ALPHA-2B PLUS RIBAVIRIN; DYNAMICS IN-VIVO; PEGYLATED
INTERFERON-ALPHA-2B; VIRAL KINETICS; PEGINTERFERON ALPHA-2A; VIROLOGICAL
RESPONSE; ANTIVIRAL ACTIVITY; HIV-1 INFECTION; GENOTYPE-1
AB Background: Mathematical models have proven helpful in analyzing the virological response to antiviral therapy in hepatitis C virus (HCV) infected subjects. Objective: To summarize the uses and limitations of different models for analyzing HCV kinetic data under pegylated IFN therapy. Methods: We formulate mathematical models and fit them by nonlinear least square regression to patient data to estimate model parameters. We compare the goodness of fit and parameter values estimated by different models statistically. Results/conclusion: The best model for parameter estimation depends on the availability and the quality of data as well as the therapy used. We also discuss the mathematical models that will be needed to analyze HCV kinetic data from clinical trials with new antiviral drugs.
C1 [Shudo, Emi; Ribeiro, Ruy M.; Perelson, Alan S.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Perelson, AS (reprint author), Los Alamos Natl Lab, MS-K710, Los Alamos, NM 87545 USA.
EM asp@lanl.gov
OI Ribeiro, Ruy/0000-0002-3988-8241
FU US Department of Energy [DE-AC52-06 NA25396]; NIH [R37 Al28433-18, R01
RR06555-17, AI065256 (ASP), P20-RR18754 (RMR)]
FX Portions of this work were done under the auspices of the US Department
of Energy under contract DE-AC52-06 NA25396 and Supported by NIH grants
R37 Al28433-18, and R01 RR06555-17 and AI065256 (ASP) and P20-RR18754
(RMR).
NR 74
TC 22
Z9 22
U1 0
U2 3
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 1742-5255
J9 EXPERT OPIN DRUG MET
JI Expert Opin. Drug Metab. Toxicol.
PD MAR
PY 2009
VL 5
IS 3
BP 321
EP 332
DI 10.1517/17425250902787616
PG 12
WC Biochemistry & Molecular Biology; Pharmacology & Pharmacy
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy
GA 440BP
UT WOS:000265673400006
PM 19331594
ER
PT J
AU Zhai, H
AF Zhai, Hui
TI Strongly interacting ultracold quantum gases
SO FRONTIERS OF PHYSICS IN CHINA
LA English
DT Review
DE ultracold quantum gases; Feshbach resonance; optical lattice; rotating
quantum gases
ID BOSE-EINSTEIN CONDENSATION; MEAN-FIELD THEORY; MANY-BODY PROBLEM;
INFINITE DIMENSIONS; PHASE-SEPARATION; MOTT INSULATOR; FERMI GASES;
SUPERFLUID; TRANSITION; MODEL
AB This article reviews recent progresses in ultracold quantum gases, and it includes three subjects which are the Fermi gases across a Feshbach resonance, quantum gases in the optical lattices and the fast rotating quantum gases. In this article, we discuss many basic physics pictures and concepts in quantum gases, for examples, the resonant interaction, universality and condensation in the lowest Landau level; we introduce fundamental theoretical tools for studying these systems, such as mean-field theory for BEC-BCS crossover and for the boson Hubbard model; also, we emphasize the important unsolved problems in the forefront of this field, for instance, the temperature effect in optical lattices.
C1 [Zhai, Hui] Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
[Zhai, Hui] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Zhai, Hui] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Zhai, Hui] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Zhai, H (reprint author), Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
EM huizhai.physics@gmail.com
RI Zhai, Hui/H-9496-2012
OI Zhai, Hui/0000-0001-8118-6027
NR 73
TC 4
Z9 4
U1 2
U2 7
PU HIGHER EDUCATION PRESS
PI BEIJING
PA SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA
SN 1673-3487
EI 1673-3606
J9 FRONT PHYS CHINA
JI Front. Phys. China
PD MAR
PY 2009
VL 4
IS 1
BP 1
EP 20
DI 10.1007/s11467-009-0001-2
PG 20
WC Physics, Multidisciplinary
SC Physics
GA 630UP
UT WOS:000280300500001
ER
PT J
AU Tsang, A
Butler, G
Powlowski, J
Panisko, EA
Baker, SE
AF Tsang, Adrian
Butler, Gregory
Powlowski, Justin
Panisko, Ellen A.
Baker, Scott E.
TI Analytical and computational approaches to define the Aspergillus niger
secretome
SO FUNGAL GENETICS AND BIOLOGY
LA English
DT Article
DE Aspergillus niger; Secretome; Computational analysis; Mass spectrometry;
Glycoside hydrolase; Genomics
ID NONCLASSICAL PROTEIN SECRETION; PLANT-CELL WALL;
SACCHAROMYCES-CEREVISIAE; FUSARIUM-GRAMINEARUM; SIGNAL PEPTIDES;
EXPRESSION; GENE; IDENTIFICATION; CLONING; ACID
AB We used computational and mass spectrometric approaches to characterize the Aspergillus niger secretome. The 11,200 gene models predicted in the genome of A. niger strain ATCC 1015 were the data source for the analysis, Depending on the computational methods used, 691 to 881 proteins were predicted to be secreted proteins. We Cultured A. niger ill six different media and analyzed the extracellular proteins produced using mass spectrometry. A total of 222 proteins were identified, with 39 proteins expressed under all six conditions and 74 proteins expressed under only one condition. The secreted proteins identified by mass spectrometry were used to guide the correction of about 20 gene models. Additional analysis focused on extracellular enzymes of interest for biomass processing. Of the 63 glycoside hydrolases predicted to be capable of hydrolyzing cellulose, hemicellulose or pectin, 94% of the exo-acting enzymes and only 18% of the endo-acting enzymes were experimentally detected. (C) 2008 Elsevier Inc. All rights reserved.
C1 [Tsang, Adrian; Butler, Gregory; Powlowski, Justin] Concordia Univ, Ctr Struct & Funct Genom, Montreal, PQ H4B 1R6, Canada.
[Tsang, Adrian] Concordia Univ, Dept Biol, Montreal, PQ H3G 1M8, Canada.
[Butler, Gregory] Concordia Univ, Dept Comp Sci, Montreal, PQ H3G 1M8, Canada.
[Powlowski, Justin] Concordia Univ, Dept Chem & Biochem, Montreal, PQ H3G 1M8, Canada.
[Panisko, Ellen A.; Baker, Scott E.] Pacific NW Natl Lab, Energy & Environm Directorate, Chem & Biol Process Dev Grp, Richland, WA 99352 USA.
RP Tsang, A (reprint author), Concordia Univ, Ctr Struct & Funct Genom, 7141 Sherbrooke W, Montreal, PQ H4B 1R6, Canada.
EM tsang@gene.concordia.ca
NR 72
TC 47
Z9 48
U1 1
U2 23
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1087-1845
J9 FUNGAL GENET BIOL
JI Fungal Genet. Biol.
PD MAR
PY 2009
VL 46
BP S153
EP S160
DI 10.1016/j.fgb.2008.07.014
PG 8
WC Genetics & Heredity; Mycology
SC Genetics & Heredity; Mycology
GA 419NU
UT WOS:000264227100014
PM 19618504
ER
PT J
AU Wortman, JR
Gilsenan, JM
Joardar, V
Deegan, J
Clutterbuck, J
Andersen, MR
Archer, D
Bencina, M
Braus, G
Coutinho, P
von Dohren, H
Doonan, J
Driessen, AJM
Durek, P
Espeso, E
Fekete, E
Flipphi, M
Estrada, CG
Geysens, S
Goldman, G
de Groot, PWJ
Hansen, K
Harris, SD
Heinekamp, T
Helmstaedt, K
Henrissat, B
Hofmann, G
Homan, T
Horio, T
Horiuchi, H
James, S
Jones, M
Karaffa, L
Karanyi, Z
Kato, M
Keller, N
Kelly, DE
Kiel, JAKW
Kim, JM
van der Klei, IJ
Klis, FM
Kovalchuk, A
Krasevec, N
Kubicek, CP
Liu, B
MacCabe, A
Meyer, V
Mirabito, P
Miskei, M
Mos, M
Mullins, J
Nelson, DR
Nielsen, J
Oakley, BR
Osmani, SA
Pakula, T
Paszewski, A
Paulsen, I
Pilsyk, S
Pocsi, I
Punt, PJ
Ram, AFJ
Ren, QH
Robellet, X
Robson, G
Seiboth, B
van Solingen, P
Specht, T
Sun, JB
Taheri-Talesh, N
Takeshita, N
Ussery, D
Vankuyk, PA
Visser, H
de Vondervoort, PJIV
de Vries, RP
Walton, J
Xiang, X
Xiong, Y
Zeng, AP
Brandt, BW
Cornell, MJ
van den Hondel, CAMJJ
Visser, J
Oliver, SG
Turner, G
AF Wortman, Jennifer Russo
Gilsenan, Jane Mabey
Joardar, Vinita
Deegan, Jennifer
Clutterbuck, John
Andersen, Mikael R.
Archer, David
Bencina, Mojca
Braus, Gerhard
Coutinho, Pedro
von Doehren, Hans
Doonan, John
Driessen, Arnold J. M.
Durek, Pawel
Espeso, Eduardo
Fekete, Erzsebet
Flipphi, Michel
Garcia Estrada, Carlos
Geysens, Steven
Goldman, Gustavo
de Groot, Piet W. J.
Hansen, Kim
Harris, Steven D.
Heinekamp, Thorsten
Helmstaedt, Kerstin
Henrissat, Bernard
Hofmann, Gerald
Homan, Tim
Horio, Tetsuya
Horiuchi, Hiroyuki
James, Steve
Jones, Meriel
Karaffa, Levente
Karanyi, Zsolt
Kato, Masashi
Keller, Nancy
Kelly, Diane E.
Kiel, Jan A. K. W.
Kim, Jung-Mi
van der Klei, Ida J.
Klis, Frans M.
Kovalchuk, Andriy
Krasevec, Nada
Kubicek, Christian P.
Liu, Bo
MacCabe, Andrew
Meyer, Vera
Mirabito, Pete
Miskei, Marton
Mos, Magdalena
Mullins, Jonathan
Nelson, David R.
Nielsen, Jens
Oakley, Berl R.
Osmani, Stephen A.
Pakula, Tiina
Paszewski, Andrzej
Paulsen, Ian
Pilsyk, Sebastian
Pocsi, Istvan
Punt, Peter J.
Ram, Arthur F. J.
Ren, Qinghu
Robellet, Xavier
Robson, Geoff
Seiboth, Bernhard
van Solingen, Piet
Specht, Thomas
Sun, Jibin
Taheri-Talesh, Naimeh
Takeshita, Norio
Ussery, Dave
Vankuyk, Patricia A.
Visser, Hans
de Vondervoort, Peter J. I. van
de Vries, Ronald P.
Walton, Jonathan
Xiang, Xin
Xiong, Yi
Zeng, An Ping
Brandt, Bernd W.
Cornell, Michael J.
van den Hondel, Cees A. M. J. J.
Visser, Jacob
Oliver, Stephen G.
Turner, Geoffrey
TI The 2008 update of the Aspergillus nidulans genome annotation: A
community effort
SO FUNGAL GENETICS AND BIOLOGY
LA English
DT Article
DE Aspergillus nidulans; Aspergilli; Genome; Annotation; Fungal community;
Assembly; Transcription factors; CADRE
ID GENE-CLUSTER; TRANSCRIPTIONAL ACTIVATOR; CELL-WALL; A-FUMIGATUS;
PREDICTION; SEQUENCE; NIGER; DNA; IDENTIFICATION; BIOSYNTHESIS
AB The identification and annotation of protein-coding genes is one of the primary goals of whole-genome sequencing projects, and the accuracy of predicting the primary protein products of gene expression is vital to the interpretation of the available data and the design of downstream functional applications. Nevertheless, the comprehensive annotation of eukaryotic genomes remains a considerable challenge. Many genomes submitted to public databases, including those of major model organisms, contain significant numbers of wrong and incomplete gene predictions. We present a community-based reannotation of the Aspergillus nidulans genome with the primary goal of increasing the number and quality of protein functional assignments through the careful review of experts in the field of fungal biology. (C) 2009 Elsevier Inc. All rights reserved.
C1 [Turner, Geoffrey] Univ Sheffield, Dept Mol Biol & Biotechnol, Sheffield S10 2TN, S Yorkshire, England.
[Wortman, Jennifer Russo] Univ Maryland, Sch Med, Dept Med, Inst Genome Sci, Baltimore, MD 21201 USA.
[Joardar, Vinita; Ren, Qinghu] J Craig Venter Inst, Rockville, MD USA.
[Deegan, Jennifer] European Bioinformat Inst, Cambridge, England.
[Clutterbuck, John] Univ Glasgow, Fac Biomed & Life Sci, Glasgow, Lanark, Scotland.
[Andersen, Mikael R.; Hofmann, Gerald; Nielsen, Jens] Tech Univ Denmark, Ctr Microbial Biotechnol, Dept Syst Biol, DK-2800 Lyngby, Denmark.
[Archer, David] Univ Nottingham, Sch Biol, Nottingham NG7 2RD, England.
[Bencina, Mojca; Krasevec, Nada] Natl Inst Chem, Lab Biotechnol & Ind Mycol, Ljubljana, Slovenia.
[Braus, Gerhard; Helmstaedt, Kerstin; Taheri-Talesh, Naimeh] Univ Gottingen, Inst Mikrobiol & Genet, Gottingen, Germany.
[Coutinho, Pedro; Henrissat, Bernard] Univ Aix Marseille 1, Marseille, France.
[von Doehren, Hans; Durek, Pawel] Tech Univ Berlin, Berlin, Germany.
[Doonan, John] John Innes Inst, Dept Cellular & Dev Biol, Norwich NR4 7UH, Norfolk, England.
[Driessen, Arnold J. M.; Kovalchuk, Andriy] Univ Groningen, Groningen Biomol Sci & Biotechnol Inst, Dept Mol Microbiol, Haren, Netherlands.
[Espeso, Eduardo] CSIC, CIB, Madrid, Spain.
[Fekete, Erzsebet; Karaffa, Levente] Univ Debrecen, Dept Genet & Appl Microbiol, Fac Sci, H-4012 Debrecen, Hungary.
[Flipphi, Michel; MacCabe, Andrew] CSIC, Inst Agroquim & Tecnol Alimentos, E-46010 Valencia, Spain.
[Garcia Estrada, Carlos] Inst Biotecnol Leon, Leon, Spain.
[Geysens, Steven] VIB, Dept Mol Biomed Res, Ghent, Belgium.
[Goldman, Gustavo] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-05508 Sao Paulo, Brazil.
[de Groot, Piet W. J.; Klis, Frans M.] Univ Amsterdam, Swammerdam Inst Life Sci, Amsterdam, Netherlands.
[Hansen, Kim; Hofmann, Gerald] Novozymes AS, Bagsvaerd, Denmark.
[Harris, Steven D.] Univ Nebraska, Plant Sci Initiat, Lincoln, NE USA.
[Heinekamp, Thorsten] Leibniz Inst Nat Prod Res & Infect Biol HKI, Dept Mol & Appl Microbiol, Jena, Germany.
[Homan, Tim; Meyer, Vera; Ram, Arthur F. J.; Vankuyk, Patricia A.; van den Hondel, Cees A. M. J. J.; Visser, Jacob] Leiden Univ, Sect Mol Microbiol, Inst Biol, Leiden, Netherlands.
[Horio, Tetsuya; Oakley, Berl R.] Univ Kansas, Dept Mol Biosci, Lawrence, KS 66045 USA.
[Horiuchi, Hiroyuki] Univ Tokyo, Dept Biotechnol, Tokyo 1138654, Japan.
[James, Steve] Gettysburg Coll, Dept Biol, Gettysburg, PA 17325 USA.
[Jones, Meriel; Mos, Magdalena] Univ Liverpool, Sch Biol Sci, Liverpool L69 3BX, Merseyside, England.
[Karanyi, Zsolt] Univ Debrecen, Fac Med, Dept Med 1, H-4012 Debrecen, Hungary.
[Kato, Masashi] Nagoya Univ, Grad Sch Bioagr Sci, Dept Biol Mech & Funct, Chikusa Ku, Nagoya, Aichi 4648601, Japan.
[Keller, Nancy] Univ Wisconsin, Dept Plant Pathol, Madison, WI 53706 USA.
[Kelly, Diane E.; Mullins, Jonathan] Swansea Univ, Inst Life Sci, Sch Med, Swansea, W Glam, Wales.
[Kiel, Jan A. K. W.; van der Klei, Ida J.] Univ Groningen, Groningen Biomol Sci & Biotechnol Inst, Haren, Netherlands.
[Kim, Jung-Mi; Liu, Bo; Seiboth, Bernhard] Univ Calif Davis, Plant Biol Sect, Davis, CA 95616 USA.
[Kubicek, Christian P.] Vienna Univ Technol, Inst Chem Engn, Div Gene Technol & Appl Biochem, A-1040 Vienna, Austria.
[Mirabito, Pete] Univ Kentucky, Sch Biol Sci, Lexington, KY 40506 USA.
[Miskei, Marton; Pocsi, Istvan] Univ Debrecen, Dept Microbial Biotechnol & Cell Biol, Fac Sci & Technol, H-4012 Debrecen, Hungary.
[Nelson, David R.] Univ Tennessee, Dept Mol Sci, Memphis, TN USA.
[Nielsen, Jens] Chalmers, Dept Chem & Biol Engn, S-41296 Gothenburg, Sweden.
[Osmani, Stephen A.; Xiong, Yi] Ohio State Univ, Dept Mol Genet, Columbus, OH 43210 USA.
[Pakula, Tiina] VIT Tech Res Ctr Finland, Espoo, Finland.
[Paszewski, Andrzej; Pilsyk, Sebastian] Polish Acad Sci, Inst Biochem & Biophys, Dept Genet, Warsaw, Poland.
[Paulsen, Ian] Macquarie Univ, Dept Chem & Biomol Sci, N Ryde, NSW, Australia.
[Punt, Peter J.] TNO Qual Life, Zeist, Netherlands.
[Robellet, Xavier; Cornell, Michael J.] Univ Paris 11, CNRS, Inst Genet & Microbiol, Orsay, France.
[Robson, Geoff] Univ Manchester, Fac Life Sci, Manchester, Lancs, England.
[van Solingen, Piet] Danisco Genencor, Leiden, Netherlands.
[Specht, Thomas] Sandoz GmbH, Kundl, Tirol, Austria.
[Sun, Jibin] Helmholtz Ctr Infect Res, Braunschweig, Germany.
[Takeshita, Norio] Univ Karlsruhe, Dept Appl Biosci Appl Microbiol, Karlsruhe, Germany.
[Ussery, Dave] Tech Univ Denmark, Ctr Biol Sequence Anal, Bioctr DTU, DK-2800 Lyngby, Denmark.
[Visser, Hans] Dyad Nederland BV, Wageningen, Netherlands.
[de Vondervoort, Peter J. I. van] DSM Anti Infect, Delft, Netherlands.
[de Vries, Ronald P.] Univ Utrecht, Utrecht, Netherlands.
[Walton, Jonathan] Michigan State Univ, DOE Plant Res Lab, E Lansing, MI 48824 USA.
[Xiang, Xin] USUHS, Dept Biochem, Bethesda, MI USA.
[Zeng, An Ping] Helmholtz Ctr Infect Res, Braunschweig, Germany.
[Zeng, An Ping] Hamburg Univ Technol, Inst Bioprocess & Biosyst Engn, Hamburg, Germany.
[Brandt, Bernd W.] Vrije Univ Amsterdam, Ctr Integrat Bioinformat IBIVU, Amsterdam, Netherlands.
[Cornell, Michael J.] Univ Manchester, Sch Comp Sci, Manchester, Lancs, England.
[Visser, Jacob] Fungal Genet & Technol Consultancy, Wageningen, Netherlands.
[Oliver, Stephen G.] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.
[Gilsenan, Jane Mabey] Univ Manchester, Sch Med, Manchester, Lancs, England.
RP Turner, G (reprint author), Univ Sheffield, Dept Mol Biol & Biotechnol, Sheffield S10 2TN, S Yorkshire, England.
EM g.turner@sheffield.ac.uk
RI De Groot, Piet/L-7737-2014; Espeso, Eduardo /C-5259-2011;
Garcia-Estrada, Carlos/F-7932-2014; Xiong, Yi/E-3083-2010; Klis,
Frans/B-9085-2008; Driessen, Arnold/D-1876-2012; Braus,
Gerhard/G-3999-2012; MacCabe, Andrew/H-4522-2012; Henrissat,
Bernard/J-2475-2012; Paulsen, Ian/K-3832-2012; Bioetanol,
Inct/I-1068-2013; de Vries, Ronald/F-8125-2011; van der Klei,
Ida/D-1919-2012; Andersen, Mikael/F-9377-2013; 2, INCT/G-6506-2013
OI Meyer, Vera/0000-0002-2298-2258; Driessen, Arnold
J.M./0000-0001-9258-9104; doonan, john/0000-0001-6027-1919; De Groot,
Piet/0000-0002-3112-6947; Espeso, Eduardo /0000-0002-5873-6059;
Garcia-Estrada, Carlos/0000-0001-5617-9669; Wortman,
Jennifer/0000-0002-8713-1227; Nelson, David/0000-0003-0583-5421;
Heinekamp, Thorsten/0000-0001-9503-9634; Van der Klei, Ida
J./0000-0001-7165-9679; Oakley, Berl/0000-0002-3046-8240; Klis,
Frans/0000-0003-0079-9492; Braus, Gerhard/0000-0002-3117-5626; MacCabe,
Andrew/0000-0003-4918-7761; Paulsen, Ian/0000-0001-9015-9418; de Vries,
Ronald/0000-0002-4363-1123; Andersen, Mikael/0000-0003-4794-6808;
FU Biotechnology and Biological Sciences Research Council [BB/F004389/1, ];
NIAID NIH HHS [N01 AI030071]; NIGMS NIH HHS [R01 GM031837]
NR 75
TC 47
Z9 863
U1 5
U2 56
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1087-1845
EI 1096-0937
J9 FUNGAL GENET BIOL
JI Fungal Genet. Biol.
PD MAR
PY 2009
VL 46
SU 1
BP S2
EP S13
DI 10.1016/j.fgb.2008.12.003
PG 12
WC Genetics & Heredity; Mycology
SC Genetics & Heredity; Mycology
GA 419NU
UT WOS:000264227100002
PM 19146970
ER
PT J
AU Kimball, BE
Mathur, R
Dohnalkova, AC
Wall, AJ
Runkel, RL
Brantley, SL
AF Kimball, B. E.
Mathur, R.
Dohnalkova, A. C.
Wall, A. J.
Runkel, R. L.
Brantley, S. L.
TI Copper isotope fractionation in acid mine drainage
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID SOURCE-MASS-SPECTROMETRY; RAY PHOTOELECTRON-SPECTROSCOPY;
ACIDITHIOBACILLUS-FERROOXIDANS; THIOBACILLUS-FERROOXIDANS;
BACILLUS-SUBTILIS; ZN ISOTOPES; CELL-WALLS; CU; CHALCOPYRITE; IRON
AB We measured the Cu isotopic composition of primary minerals and stream water affected by acid mine drainage in a mineralized watershed (Colorado, USA). The delta(65)Cu values (based on (65)Cu/(63)Cu) of enargite (delta(65)Cu = -0.01 +/- 0.10 parts per thousand; 2 sigma) and chalcopyrite (delta(65)Cu = 0.16 +/- 0.10 parts per thousand) are within the range of reported values for terrestrial primary Cu sulfides (-1 parts per thousand < delta(65)Cu < 1 parts per thousand). These mineral samples show lower delta(65)Cu values than stream waters (1.38 parts per thousand <= delta(65)Cu <= 1.69 parts per thousand). The average isotopic fractionation (Delta(aq-min) = delta(65)Cu(aq) - delta(65)Cu(min), where the latter is measured on mineral samples from the field system), equals 1.43 +/- 0.14 parts per thousand and 1.60 +/- 0.14 parts per thousand for chalcopyrite and enargite, respectively. To interpret this field survey, we leached chalcopyrite and enargite in batch experiments and found that, as in the field, the leachate is enriched in (65)Cu relative to chalcopyrite (1.37 +/- 0.14 parts per thousand) and enargite (0.98 +/- 0.14 parts per thousand) when microorganisms are absent. Leaching of minerals in the presence of Acidithiobacillus ferrooxidans results in smaller average fractionation in the opposite direction for chalcopyrite (Delta(aq-min degrees) = -0.57 +/- 0.14 parts per thousand, where min degrees refers to the starting mineral) and no apparent fractionation for enargite (Delta(aq-min degrees) = 0.14 +/- 0.14 parts per thousand). Abiotic fractionation is attributed to preferential oxidation of (65)Cu(+) at the interface of the isotopically homogeneous mineral and the surface oxidized layer, followed by solubilization. When microorganisms are present, the abiotic fractionation is most likely not seen due to preferential association of (65)Cu(aq) with A. ferrooxidans cells and related precipitates. In the biotic experiments, Cu was observed under TEM to occur in precipitates around bacteria and in intracellular polyphosphate granules. Thus, the values of delta(65)Cu in the field and laboratory systems are presumably determined by the balance of Cu released abiotically and Cu that interacts with cells and related precipitates. Such isotopic signatures resulting from Cu sulfide dissolution should be useful for acid mine drainage remediation and ore prospecting purposes. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Kimball, B. E.; Wall, A. J.; Brantley, S. L.] Penn State Univ, Dept Geosci, University Pk, PA 16801 USA.
[Mathur, R.] Juniata Coll, Dept Geol, Huntingdon, PA 16652 USA.
[Dohnalkova, A. C.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Runkel, R. L.] US Geol Survey, Denver Fed Ctr, Lakewood, CO 80225 USA.
RP Kimball, BE (reprint author), Penn State Univ, Dept Geosci, University Pk, PA 16801 USA.
EM bkimball@geosc.psu.edu
RI mathur, ryan/A-5278-2010
FU Penn State Biogeochemical Research Initiative for Education (BRIE)
[DGE-9972759]; EPA Science to Achieve Results (STAR); Penn State Center
for Environmental Kinetics Analysis (CEKA) [CHE-0431328]; National
Aeronautics and Space Administration (NASA) [NNG05GN72G]; US DOE
[DE-AC05-76RLO1830]
FX Funding was provided by the Penn State Biogeochemical Research
Initiative for Education (BRIE) (NSF grant DGE-9972759), the EPA Science
to Achieve Results (STAR) fellowship program, the Penn State Center for
Environmental Kinetics Analysis (CEKA) (NSF grant CHE-0431328), and
National Aeronautics and Space Administration (NASA) grant NNG05GN72G.
We thank J. Kittleson, H. Gong, and Y. Luo (Penn State) for assistance
with elemental analyses, G. Hart and J. Vervoort (Washington State
University) for facilitation of isotope analyses, and J. Steiger for
measuring ferrous and total dissolved Fe concentrations in stream
samples. TEM imaging and analyses were performed at the W. R. Wiley
Environmental Molecular Sciences Laboratory (EMSL), a national
scientific user facility operated by Battelle for the US DOE under
Contract DE-AC05-76RLO1830. D. Borrok, two anonymous reviewers, and D.
Cole made comments that improved this work.
NR 92
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD MAR 1
PY 2009
VL 73
IS 5
BP 1247
EP 1263
DI 10.1016/j.gca.2008.11.035
PG 17
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 412GX
UT WOS:000263714300003
ER
PT J
AU Kwon, KD
Refson, K
Sposito, G
AF Kwon, Kideok D.
Refson, Keith
Sposito, Garrison
TI Zinc surface complexes on birnessite: A density functional theory study
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID TOTAL-ENERGY CALCULATIONS; METAL SORBED BIRNESSITE; X-RAY-FLUORESCENCE;
MANGANESE OXIDE; PLANE-WAVE; STRUCTURAL STABILITY; ELECTRONIC-STRUCTURE;
MOLECULAR-DYNAMICS; AB-INITIO; 1ST-PRINCIPLES
AB Biogeochemical cycling of zinc is strongly influenced by sorption on birnessite minerals (layer-type MnO2), which are found in diverse terrestrial and aquatic environments. Zinc has been observed to form both tetrahedral (Zn-IV) and octahedral (Zn-VI) triple-corner-sharing surface complexes (TCS) at Mn(IV) vacancy sites in hexagonal birnessite. The octahedral complex is expected to be similar to that of Zn in the Mn oxide mineral, chalcophanite (ZnMn3O7 center dot 3H(2)O), but the reason for the occurrence of the four-coordinate Zn surface species remains unclear. We address this issue computationally using spin-polarized density functional theory (DFT) to examine the Zn-IV-TCS and Zn-VI-TCS species. Structural parameters obtained by DFT geometry optimization were in excellent agreement with available experimental data on Zn-birnessites. Total energy, magnetic moments, and electron overlap populations obtained by DFT for isolated Zn-IV-TCS revealed that this species is stable in birnessite without a need for Mn(III) substitution in the octahedral sheet and that it is more effective in reducing undersaturation of surface O at a Mn vacancy than is Zn-VI-TCS. Comparison between geometry-optimized ZnMn3O7 center dot 3H(2)O (chalcophanite) and the hypothetical monohydrate mineral, ZnMn3O7 center dot H2O, which contains only tetrahedral Zn, showed that the hydration state of Zn significantly affects birnessite structural stability. Finally, our study also revealed that, relative to their positions in an ideal vacancy-free MnO2, Mn nearest to Zn in a TCS surface complex move toward the vacancy by 0.08-0.11 angstrom, while surface O bordering the vacancy move away from it by 0.16-0.21 angstrom, in agreement with recent X-ray absorption spectroscopic analyses. Published by Elsevier Ltd.
C1 [Kwon, Kideok D.; Sposito, Garrison] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Geochem, Div Earth Sci, Berkeley, CA 94720 USA.
[Refson, Keith] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England.
RP Kwon, KD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Geochem, Div Earth Sci, Berkeley, CA 94720 USA.
EM kkwon@nature.berkeley.edu
RI Refson, Keith/G-1407-2013;
OI Refson, Keith/0000-0002-8715-5835
FU US Department of Energy [DE-AC03-76SF00098, DE-AC02-05CH11231]
FX This 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-AC03-76SF00098. 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. We also
acknowledge the use of the SCARF computing facilities at STFC Rutherford
Appleton Laboratory.
NR 47
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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 MAR 1
PY 2009
VL 73
IS 5
BP 1273
EP 1284
DI 10.1016/j.gca.2008.11.033
PG 12
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 412GX
UT WOS:000263714300005
ER
PT J
AU Ona-Nguema, G
Morin, G
Wang, YH
Menguy, N
Juillot, F
Olivi, L
Aquilanti, G
Abdelmoula, M
Ruby, C
Bargar, JR
Guyot, F
Calas, G
Brown, GE
AF Ona-Nguema, Georges
Morin, Guillaume
Wang, Yuheng
Menguy, Nicolas
Juillot, Farid
Olivi, Luca
Aquilanti, Giuliana
Abdelmoula, Mustapha
Ruby, Christian
Bargar, John R.
Guyot, Francois
Calas, Georges
Brown, Gordon E., Jr.
TI Arsenite sequestration at the surface of nano-Fe(OH)(2),
ferrous-carbonate hydroxide, and green-rust after bioreduction of
arsenic-sorbed lepidocrocite by Shewanella putrefaciens
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID DISSIMILATORY FE(III)-REDUCING BACTERIUM; CONTAINING AQUEOUS-MEDIA;
METAL-REDUCING BACTERIA; HYDROUS FERRIC-OXIDE; ACID-MINE DRAINAGE;
CRYSTAL-STRUCTURE; BANGLADESH GROUNDWATER; MICROBIAL REDUCTION;
GAMMA-FEOOH; MOSSBAUER-SPECTROSCOPY
AB X-ray Absorption Fine Structure (XAFS) spectroscopy was used in combination with high resolution transmission electron microscopy (HRTEM), electron energy loss spectroscopy (EELS), X-ray energy dispersive spectroscopy (XEDS), Xray powder diffraction, and Mossbauer spectroscopy to obtain detailed information on arsenic and iron speciation in the products of anaerobic reduction of pure and As(V)- or As(III)-adsorbed lepidocrocite (gamma-FeOOH) by Shewanella putrefaciens ATCC 12099. We found that this strain of S. putrefaciens is capable of using Fe(III) in lepidocrocite and As(V) in solution or adsorbed on lepidocrocite surfaces as electron acceptors. Bioreduction of lepidocrocite in the absence of arsenic resulted in the formation of hydroxycarbonate green rust 1 [(Fe4Fe2III)-Fe-II(OH)(12)CO3: GR1(CO3)], which completely converted into ferrous-carbonate hydroxide (Fe-2(II)(OH)(2)CO3: FCH) over nine months. This study thus provides the first evidence of bacterial reduction of stoichiometric GR1(CO3) into FCH. Bioreduction of As(III)-adsorbed lepidocrocite also led to the formation of GR1(CO3) prior to formation of FCH, but the presence of As(III) slows down this transformation, leading to the co-occurrence of both phases after 22-month of aging. At the end of this experiment, As(III) was found to be adsorbed on the surfaces of GR1(CO3) and FCH. After five months, bioreduction of As(V)-bearing lepidocrocite led directly to the formation of FCH in association with nanometer-sized particles of a minor As-rich Fe(OH)(2) phase, with no evidence for green rust formation. In this five-month experiment, As(V) was fully converted to As(III), which was dominantly sorbed at the surface of the Fe(OH)(2) nanoparticles as oligomers binding to the edges of Fe(OH)(6) octahedra at the edges of the octahedral layers of Fe(OH)(2). These multinuclear As(III) surface complexes are characterized by As-As pairs at a distance of 3.32 +/- 0.02 angstrom and by As-Fe pairs at a distance of 3.50 +/- 0.02 angstrom and represent a new type of As(III) surface complex. Chemical analyses show that the majority of As(III) produced in the experiments with As present is associated with iron-bearing hydroxycarbonate or hydroxide solids, reinforcing the idea that, at least under some circumstances, bacterial reduction can promote As(III) sequestration instead of mobilizing it into solution. (C) 2008 Elsevier Ltd. All rights reserved.
C1 [Ona-Nguema, Georges; Morin, Guillaume; Wang, Yuheng; Menguy, Nicolas; Juillot, Farid; Guyot, Francois; Calas, Georges] Univ Paris 07, Univ Paris 06, CNRS, IMPMC,IPGP, F-75015 Paris, France.
[Ona-Nguema, Georges; Brown, Gordon E., Jr.] Stanford Univ, Dept Geol & Environm Sci, Surface & Aqueous Geochem Grp, Stanford, CA 94305 USA.
[Olivi, Luca] ELETTRA, XAFS Beamline, I-34012 Trieste, Italy.
[Aquilanti, Giuliana] BM29 European Synchrotron Radiat Facil ESRF, F-38043 Grenoble, France.
[Abdelmoula, Mustapha; Ruby, Christian] Univ Nancy 1, CNRS, UMR 7564, LCPME, F-54600 Villers Les Nancy, France.
[Bargar, John R.; Brown, Gordon E., Jr.] SLAC, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
RP Morin, G (reprint author), Univ Paris 07, Univ Paris 06, CNRS, IMPMC,IPGP, 140 Rue Lourmel, F-75015 Paris, France.
EM guillaume.morin@impmc.jussieu.fr
RI Calas, Georges/B-2445-2012; MENGUY, Nicolas/F-5607-2012; Wang,
Yuheng/K-3988-2012; GUYOT, Francois/C-3824-2016; JUILLOT,
Farid/G-7943-2016; IMPMC, Geobio/F-8819-2016
OI Calas, Georges/0000-0003-0525-5734; MENGUY, Nicolas/0000-0003-4613-2490;
Wang, Yuheng/0000-0002-1786-5970; GUYOT, Francois/0000-0003-4622-2218;
FU ECCO-ECODYN; ACI/FNS [3033]; SESAME IdF [1775]; NSF-EMSI [CHE-0431425];
France-Stanford Center for Interdisciplinary Studies
FX The authors are indebted to the SSRL staff, especially Joe Rogers,
Samuel Webb, and William Butler, the ESRF-BM29 staff, especially Olivier
Mathon, as well as the ELETTRA-XAFS & SOLEIL-SAMBA staff, especially
Francoise Villain, for their technical assistance during the XAFS
experiments. We acknowledge SSRL, ESRF, and ELETTRA for provision of
beamtime through proposals 2781 & 3168, EC127, and 2006431,
respectively. We thank AE Peggy O'Day and three anonymous reviewers for
their constructive comments, which improved the quality of the
manuscript. This work was supported by the ECCO-ECODYN and the
EC2CO-CYTRIX CNRS/INSU Programs, by ACI/FNS Grant #3033, by SESAME IdF
Grant #1775, by NSF-EMSI Grant CHE-0431425 (Stanford Environmental
Molecular Science Institute), and by the France-Stanford Center for
Interdisciplinary Studies. This is IPGP contribution # 2087.
NR 93
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD MAR 1
PY 2009
VL 73
IS 5
BP 1359
EP 1381
DI 10.1016/j.gca.2008.12.005
PG 23
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 412GX
UT WOS:000263714300011
ER
PT J
AU Seong, YB
Owen, LA
Yi, CL
Finkel, RC
AF Seong, Yeong Bae
Owen, Lewis A.
Yi, Chaolu
Finkel, Robert C.
TI Quaternary glaciation of Muztag Ata and Kongur Shan: Evidence for
glacier response to rapid climate changes throughout the Late Glacial
and Holocene in westernmost Tibet
SO GEOLOGICAL SOCIETY OF AMERICA BULLETIN
LA English
DT Article
DE glacial geology; Tibet; Muztag Ata; Kongur Shan; geochronology;
terrestrial cosmogenic nuclide surface-exposure dating; midlatitude
westerlies; Late Glacial; Holocene; rapid climate changes
ID EQUILIBRIUM-LINE ALTITUDES; ICE CORE RECORDS; NORTHERN PAKISTAN;
COSMOGENIC BE-10; CENTRAL-ASIA; ASYNCHRONOUS GLACIATION; KARAKORAM
MOUNTAINS; NUCLIDE PRODUCTION; GLOBAL CLIMATE; EASTERN PAMIR
AB The glacial geology of two massifs, Muztag Ata and Kongur Shan, in western Tibet was examined to help define the timing and style of glaciation in the semiarid regions of western Tibet. Remote sensing, geomorphic mapping, and "Be terrestrial cosmogenic nuclide (TCN) surface-exposure dating of boulders on the moraines and sediment in depth profiles show that glaciers advanced at least 12 times during at least the last two glacial cycles. Over this time, the style of glaciation changed progressively from one that produced ice caps to one that produced less extensive and more deeply entrenched valley glaciers. The timing of the two earliest glaciations is poorly defined, but they likely occurred prior to the penultimate glacial cycle (the Karasu glacial stage) and the early part of the last glacial cycle or during the penultimate glacial cycle (the Subaxh glacial stage). In contrast, the timing of later glacial advances (the Olimde glacial stage) is relatively well defined showing quasiperiodical oscillations on millennial time scales (17.1 +/- 0.3 ka, 13.7 +/- 0.5 ka, 11.2 +/- 0.1 ka, 10.2 +/- 0.3 ka, 8.4 +/- 0.4 ka, 6.7 +/- 0.2 ka, 4.2 +/- 0.3 ka, 3.3 +/- 0.6 ka, 1.4 +/- 0.1 ka, and a few hundred years before the present). These data suggest that since the global Last Glacial Maximum (LGM), the glaciers in western Tibet likely responded to Northern Hemisphere climate oscillations (rapid climate changes), with minor influences from the south Asian monsoon. This study provides the first well-defined glacial geologic evidence to suggest that glaciers in western Tibet respond to rapid climate changes on millennial time scales throughout the Late Glacial and Holocene.
C1 [Seong, Yeong Bae; Owen, Lewis A.] Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
[Yi, Chaolu] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China.
[Finkel, Robert C.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
RP Seong, YB (reprint author), Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
EM ybseong@hotmail.com
FU National Science Foundation of China [40730101, 40671023]; Lawrence
Livermore National Laboratory (LLNL); U.S. Department of Energy
[W-7405-ENG-48]; Institute of Geophysics and Planetary Physics/Lawrence
Livermore National Laboratory (IGPP/LLNL)
FX Sincere thanks are due to Chinese colleagues (Yabing Li, Gongbi Chen,
Ming Chen, and Jianyi Dong) for their help in the field. Special thanks
to Associate Editors and reviewers, Eric Kirby, John Gosse, David Evans,
Jane Staiger, and Fred Phillips, I I or their extremely useful. and
constructive reviews. This research forms part of Yeong Bae Seong's
doctoral research, which was partially supported by a Meyers Fellowship
at the University of Cincinnati. We would also like to thank National
Science Foundation of China for their Support for the fieldwork
component of this project (NSFC grants 40730101 and 40671023). This work
was undertaken at the Lawrence Livermore National Laboratory (LLNL)
(under U.S. Department of Energy contract W-7405-ENG-48) as part of an
Institute of Geophysics and Planetary Physics/Lawrence Livermore
National Laboratory (IGPP/LLNL) research grant. Special thanks to Thomas
Lowell for his useful and constructive comments oil an early version of
this paper.
NR 92
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U1 1
U2 20
PU GEOLOGICAL SOC AMER, INC
PI BOULDER
PA PO BOX 9140, BOULDER, CO 80301-9140 USA
SN 0016-7606
J9 GEOL SOC AM BULL
JI Geol. Soc. Am. Bull.
PD MAR-APR
PY 2009
VL 121
IS 3-4
BP 348
EP 365
DI 10.1130/B26339.1
PG 18
WC Geosciences, Multidisciplinary
SC Geology
GA 401TG
UT WOS:000262964700003
ER
PT J
AU Greer, L
Jackson, JE
Curran, HA
Guilderson, T
Teneva, L
AF Greer, Lisa
Jackson, Julia E.
Curran, H. Allen
Guilderson, Tom
Teneva, Lida
TI How vulnerable is Acropora cervicornis to environmental change? Lessons
from the early to middle Holocene
SO GEOLOGY
LA English
DT Article
ID CLIMATE-CHANGE; CORAL-REEFS; ENRIQUILLO VALLEY; RANGE SHIFTS;
TEMPERATURE; ATLANTIC; DEPOSITS; ECOLOGY; SCALE; OCEAN
AB The coral Acropora cervicornis is considered a modern environmental indicator species, vulnerable to anthropogenic stress and rapidly disappearing throughout the Caribbean. Causes for its decline have been attributed to both natural and anthropogenic factors. Physical and geochemical data are used to explore conditions under which this species thrived in early to middle Holocene reef deposits (ca. 9.4-5.4 ka) of the Enriquillo Valley, southwestern Dominican Republic. This study shows that A. cervicornis flourished during a 4000 yr period spanning the Holocene Thermal Maximum, and high-resolution radiocarbon dating reveals continuous growth for at least 2000 yr. Holocene A. cervicornis survived large-scale climate and environmental changes that included high temperatures, variable salinity, hurricanes, and rapid sea-level rise with remarkable resilience. Our data suggest that the recent decline in A. cervicornis is anomalous and likely tied to ecosystem change beyond natural causes.
C1 [Greer, Lisa; Jackson, Julia E.] Washington & Lee Univ, Dept Geol, Lexington, VA 24450 USA.
[Curran, H. Allen] Smith Coll, Dept Geol, Northampton, MA 01063 USA.
[Guilderson, Tom] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
[Teneva, Lida] Stanford Univ, Sch Earth Sci, Stanford, CA 94305 USA.
RP Greer, L (reprint author), Washington & Lee Univ, Dept Geol, Lexington, VA 24450 USA.
RI Teneva, Lida/G-5772-2013
NR 35
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PU GEOLOGICAL SOC AMER, INC
PI BOULDER
PA PO BOX 9140, BOULDER, CO 80301-9140 USA
SN 0091-7613
J9 GEOLOGY
JI Geology
PD MAR
PY 2009
VL 37
IS 3
BP 263
EP 266
DI 10.1130/G25479A.1
PG 4
WC Geology
SC Geology
GA 414CT
UT WOS:000263842200018
ER
PT J
AU Malama, B
Revil, A
Kuhlman, KL
AF Malama, B.
Revil, A.
Kuhlman, K. L.
TI A semi-analytical solution for transient streaming potentials associated
with confined aquifer pumping tests
SO GEOPHYSICAL JOURNAL INTERNATIONAL
LA English
DT Article
DE Electrical properties; Hydrogeophysics; Hydrology
ID INVERSE METHOD; FLOW; SIGNALS; TRANSMISSIVITY
AB We consider the transient streaming potential response due to pumping from a confined aquifer through a fully penetrating line sink. Confined aquifer flow is assumed to occur without fluid leakage from the confining units. However, since confining units are typically clayey, and hence more electrically conductive than the aquifer, they are treated as non-insulating in our three-layer conceptual model. We develop a semi-analytical solution for the transient streaming potentials response of the aquifer and the confining units to pumping of the aquifer. The solution is fitted to field measurements of streaming potentials associated with an aquifer test performed at a site located near Montalto Uffugo, in the region of Calabria in Southern Italy. This yields an average hydraulic conductivity that compares well to the estimate obtained using only hydraulic head data. Specific storage is estimated with greater estimation uncertainty than hydraulic conductivity and is significantly smaller than that estimated from hydraulic head data. This indicates that specific storage may be a more difficult parameter to estimate from streaming potential data. The mismatch may also be due to the fact that only recovery streaming potential data were used here whereas head data for both production and recovery were used. The estimate from head data may also constitute an upper bound since head data were not corrected for pumping and observation wellbore storage. Estimated values of the electrical conductivities of the confining units compare well to those estimated using electrical resistivity tomography. Our work indicates that, where observation wells are unavailable to provide more direct estimates, streaming potential data collected at land surface may, in principle, be used to provide preliminary estimates of aquifer hydraulic conductivity and specific storage, where the latter is estimated with greater uncertainty than the former.
C1 [Malama, B.] Boise State Univ, Ctr Geophys Invest Shallow Subsurface, Boise, ID 83725 USA.
[Malama, B.] Boise State Univ, Dept Geosci, Boise, ID 83725 USA.
[Revil, A.] Colorado Sch Mines, Green Ctr, Dept Geophys, Golden, CO 80401 USA.
[Revil, A.] Univ Savoie, CNRS, LGIT, F-73376 Le Bourget Du Lac, France.
[Kuhlman, K. L.] Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ 85721 USA.
[Kuhlman, K. L.] Sandia Natl Lab Carlsbad ORG 6712, Carlsbad, NM 88220 USA.
RP Malama, B (reprint author), Boise State Univ, Ctr Geophys Invest Shallow Subsurface, Boise, ID 83725 USA.
EM bmalama@cgiss.boisestate.edu
RI Kuhlman, Kristopher/I-7283-2012
OI Kuhlman, Kristopher/0000-0003-3397-3653
FU EPA [X-960041-01-0]
FX The work presented here was supported in part by EPA grant
X-960041-01-0. We thank the two anonymous reviewers whose insightful
comments helped improve the paper. We also thank Salvatore Straface and
Enzo Rizzo for providing us with the data analysed in this work.
NR 18
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U2 2
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0956-540X
J9 GEOPHYS J INT
JI Geophys. J. Int.
PD MAR
PY 2009
VL 176
IS 3
BP 1007
EP 1016
DI 10.1111/j.1365-246X.2008.04014.x
PG 10
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 408RN
UT WOS:000263452600024
ER
PT J
AU Schoenberg, MA
AF Schoenberg, Michael A.
TI Vertically fractured transversely isotropic media: dimensionality and
deconstruction
SO GEOPHYSICAL PROSPECTING
LA English
DT Article
ID ANISOTROPY; ROCK
AB A vertically fractured transversely isotropic (VFTI) elastic medium is one in which any number of sets of vertical aligned fractures (each set has its normal lying in the horizontal x(1), x(2)-plane) pervade the medium and the sets of aligned fractures are the only features of the medium disturbing the axi-symmetry about the x(3)-axis implying that in the absence of fractures, the background medium is transversely isotropic (TI). Under the assumptions of long wavelength equivalent medium theory, the compliance matrix of a fractured medium is the sum of the background medium's compliance matrix and a fracture compliance matrix. For sets of parallel rotationally symmetric fractures (on average), the fracture compliance matrix is dependent on 3 parameters - its normal and tangential compliance and its strike direction. When one fracture set is present, the medium is orthorhombic and the analysis is straightforward. When two (non-orthogonal) or more sets are present, the overall medium is in general elastically monoclinic; its compliance tensor components are subject to two equalities yielding an 11 parameter monoclinic medium. Constructing a monoclinic VFTI medium with n embedded vertical fracture sets, requires 5 TI parameters plus 3xn fracture set parameters. A deconstruction of such an 11 parameter monoclinic medium involves using its compliance tensor to find a background transversely isotropic medium and several sets of vertical fractures which, in the long wavelength limit, will behave exactly as the original 11 parameter monoclinic medium. A minimal deconstruction, would be to determine, from the 11 independent components, the transversely isotropic background (5 parameters) and two fracture sets (specified by 2 x 3 = 6 parameters). Two of the background TI medium's compliance matrix components are known immediately by inspection, leaving nine monoclinic components to be used in the minimal deconstruction of the VFTI medium. The use of the properties of a TI medium, which are linear relations on its compliance components, allows the deconstruction to be reduced to solving a pair of non-linear equations on the orientations of two fracture sets. A single root yielding a physically meaningful minimum deconstruction yields a unique minimal representation of the monoclinic medium as a VFTI medium. When no such root exists, deconstruction requires an additional fracture set and uniqueness is lost. The boundary between those monoclinic media that have a unique minimal representation and those that do not is yet to be determined.
C1 Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Schoenberg, MA (reprint author), Lawrence Berkeley Lab, Div Earth Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 11
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PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0016-8025
J9 GEOPHYS PROSPECT
JI Geophys. Prospect.
PD MAR
PY 2009
VL 57
IS 2
BP 169
EP 185
DI 10.1111/j.1365-2478.2008.00775.x
PG 17
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 409QI
UT WOS:000263520500002
ER
PT J
AU Berryman, JG
AF Berryman, James G.
TI Aligned vertical fractures, HTI reservoir symmetry and Thomsen seismic
anisotropy parameters for polar media
SO GEOPHYSICAL PROSPECTING
LA English
DT Article
ID TRANSVERSELY ISOTROPIC MEDIA; WAVE ELASTIC-ANISOTROPY; APPROXIMATIONS;
CONSTANTS; VELOCITY; SOLIDS
AB Certain crack-influence parameters of Sayers and Kachanov are shown to be directly related to Thomsen's weak-anisotropy seismic parameters for fractured reservoirs when the crack/fracture density is small enough. These results are then applied to the problem of seismic wave propagation in polar reservoirs, i.e., those anisotropic reservoirs having two axes that are equivalent but distinct from the third axis), especially for horizontal transversely isotropic seismic wave symmetry due to the presence of aligned vertical fractures and resulting in azimuthal seismic wave symmetry at the Earth's surface. The approach presented suggests one method of inverting for fracture density from wave speed data. A significant fraction of the technical effort in the paper is devoted to showing how to predict the angular location of the true peak (or trough) of the quasi-SV-wave for polar media and especially how this peak is related to another angle that is very easy to compute. The axis of symmetry is always treated here as the x(3)-axis for either vertical transversely isotropic symmetry (due, for example, to horizontal cracks), or horizontal transversely isotropic symmetry (due to aligned vertical cracks). Then, the meaning of the stiffnesses is derived from the fracture analysis in the same way for vertical transversely isotropic and horizontal transversely isotropic media, but for horizontal transverse isotropy the wave speeds relative to the Earth's surface are shifted by 90 degrees in the plane perpendicular to the aligned vertical fractures. Skempton's poroelastic coefficient B is used as a general means of quantifying the effects of fluids inside the fractures. Explicit Biot-Gassmann-consistent formulas for Thomsen's parameters are also obtained for either drained or undrained fractures resulting in either vertical transversely isotropic or horizontal transversely isotropic symmetry of the reservoir.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Berryman, JG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,MS 90R1116, Berkeley, CA 94720 USA.
EM jgberryman@lbl.gov
FU U.S. Department of Energy by the University of California, Lawrence
Berkeley National Laboratory [DE-AC03-76SF00098]; DOE Office of Basic
Energy Sciences, Division of Chemical Sciences, Geosciences and
Biosciences
FX The author thanks V. Grechka, M. Kachanov, S. Nakagawa, S. R. Pride, M.
Schoenberg and I. Tsvankin for helpful collaborations and conversations.
Work performed under the auspices of the U.S. Department of Energy by
the University of California, Lawrence Berkeley National Laboratory
under Contract No. DE-AC03-76SF00098 and supported specifically by the
Geosciences Research Program of the DOE Office of Basic Energy Sciences,
Division of Chemical Sciences, Geosciences and Biosciences.
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PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0016-8025
EI 1365-2478
J9 GEOPHYS PROSPECT
JI Geophys. Prospect.
PD MAR
PY 2009
VL 57
IS 2
BP 193
EP 208
DI 10.1111/j.1365-2478.2008.00767.x
PG 16
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 409QI
UT WOS:000263520500004
ER
PT J
AU Korneev, V
AF Korneev, Valeri
TI Resonant seismic emission of subsurface objects
SO GEOPHYSICS
LA English
DT Article
ID WAVE; SCATTERING; CRACK
AB Numerical modeling results and field data indicate that some contrasting subsurface objects (such as tunnels, caves, pipes, filled pits, and fluid-filled fractures) are capable of generating durable resonant oscillations after trapping seismic energy. These oscillations consist of surface types of circumferential waves that repeatedly propagate around the object. The resonant emission of such trapped energy occurs primarily in the form of shear body waves that can be detected by remotely placed receivers. Resonant emission reveals itself in the form of sharp resonant peaks for the late parts of the records, when all strong direct and primary reflected waves are gone. These peaks were observed in field data for a buried barrel filled with water, in 2D finite-difference modeling results, and in the exact canonical solution for a fluid-filled sphere. A computed animation for the diffraction of a plane wave upon a low-velocity elastic sphere confirms the generation of resonances by durable surface waves. Resonant emission has characteristic quasi-hyperbolic traveltime patterns on shot gathers. The inversion of these patterns can be performed in the frequency domain after muting the strong direct and primary scattered waves. Subsurface objects can be detected and imaged at a single resonance frequency without an accurate knowledge of source trigger time. The imaging of subsurface objects requires information about the shear velocity distribution in an embedding medium, which can be done interactively during inversion.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Korneev, V (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
EM vakorneev@lbl.gov
FU U. S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the National Energy Technology Laboratory,
Office of Fossil Energy Sciences of the U. S. Department of Energy under
Contract No. DE-AC02-05CH11231. Field data were provided by Eugeny Landa
(OPERA); GeoKinetik, LLC, provided KinetiK Professional processing
software.
NR 18
TC 3
Z9 3
U1 1
U2 4
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA 8801 S YALE ST, TULSA, OK 74137 USA
SN 0016-8033
J9 GEOPHYSICS
JI Geophysics
PD MAR-APR
PY 2009
VL 74
IS 2
BP T47
EP T53
DI 10.1190/1.3068448
PG 7
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 421QX
UT WOS:000264374500024
ER
PT J
AU Jardani, A
Revil, A
Barrash, W
Crespy, A
Rizzo, E
Straface, S
Cardiff, M
Malama, B
Miller, C
Johnson, T
AF Jardani, A.
Revil, A.
Barrash, W.
Crespy, A.
Rizzo, E.
Straface, S.
Cardiff, M.
Malama, B.
Miller, C.
Johnson, T.
TI Reconstruction of the Water Table from Self-Potential Data: A Bayesian
Approach
SO GROUND WATER
LA English
DT Article
ID HYDROGEOPHYSICAL RESEARCH SITE; GRANULAR POROUS-MEDIA;
ELECTRICAL-CONDUCTIVITY; REYNOLDS-NUMBERS; PUMPING TEST; SHALY SANDS;
RADAR; SIGNALS; SYSTEMS; MODEL
AB Ground water flow associated with pumping and injection tests generates self-potential signals that can be measured at the ground surface and used to estimate the pattern of ground water flow at depth. We propose an inversion of the self-potential signals that accounts for the heterogeneous nature of the aquifer and a relationship between the electrical resistivity and the streaming current coupling coefficient. We recast the inversion of the self-potential data into a Bayesian framework. Synthetic tests are performed showing the advantage in using self-potential signals in addition to in situ measurements of the potentiometric levels to reconstruct the shape of the water table. This methodology is applied to a new data set from a series of coordinated hydraulic tomography, self-potential, and electrical resistivity tomography experiments performed at the Boise Hydrogeophysical Research Site, Idaho. In particular, we examine one of the dipole hydraulic tests and its reciprocal to show the sensitivity of the self-potential signals to variations of the potentiometric levels under steady-state conditions. However, because of the high pumping rate, the response was also influenced by the Reynolds number, especially near the pumping well for a given test. Ground water flow in the inertial laminar flow regime is responsible for nonlinearity that is not yet accounted for in self-potential tomography. Numerical modeling addresses the sensitivity of the self-potential response to this problem.
C1 [Jardani, A.; Revil, A.] Colorado Sch Mines, Dept Geophys, Golden, CO 80401 USA.
[Jardani, A.] Bur Etud ALISE, F-76160 St Jacques Sur Darnetal, France.
[Revil, A.] Univ Savoie, CNRS, UMR 5559, Equipe Volcans,INSU,LGIT, F-73376 Le Bourget Du Lac, France.
[Crespy, A.] Univ Aix Marseille 3, CNRS, F-13545 Aix En Provence, France.
[Barrash, W.; Malama, B.; Miller, C.] Boise State Univ, Ctr Geophys Invest Shallow Subsurface, Boise, ID 83725 USA.
[Rizzo, E.] CNR, IMAA, Hydrogeophys Lab, I-85052 Marsico Nuovo, PZ, Italy.
[Straface, S.] Univ Calabria, Dipartimento Difesa Suolo, I-87036 Arcavacata Di Rende, CS, Italy.
[Cardiff, M.] Stanford Univ, Stanford, CA 94305 USA.
[Miller, C.] MSE Technol Applicat Inc, Butte, MT 59701 USA.
[Johnson, T.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Revil, A (reprint author), Colorado Sch Mines, Dept Geophys, 1500 Illinois St, Golden, CO 80401 USA.
EM arevil@mines.edu
RI Rizzo, Enzo/C-9490-2015; Cardiff, Michael/B-1711-2013;
OI Cardiff, Michael/0000-0002-6720-6084; Rizzo, Enzo/0000-0003-0716-4318
FU EPA [X-96004601-0, X-96004601-1]
FX We thank FrEdEric Perrier for the use of his electrodes and fruitful
discussions. Terry Young is thanked for his support at Mines. EPA grants
X-96004601-0 and X-96004601-1 provided support for experimentation at
the BHRS and for Boise State University researchers. We thank one
anonymous referee and Fred Day-Lewis for their very constructive and
useful reviews.
NR 64
TC 40
Z9 41
U1 1
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0017-467X
EI 1745-6584
J9 GROUND WATER
JI Ground Water
PD MAR-APR
PY 2009
VL 47
IS 2
BP 213
EP 227
DI 10.1111/j.1745-6584.2008.00513.x
PG 15
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 410TI
UT WOS:000263600800009
PM 19016893
ER
PT J
AU Truex, MJ
Oostrom, M
Brusseau, ML
AF Truex, M. J.
Oostrom, M.
Brusseau, M. L.
TI Estimating Persistent Mass Flux of Volatile Contaminants from the Vadose
Zone to Ground Water
SO GROUND WATER MONITORING AND REMEDIATION
LA English
DT Article
ID HANFORD SITE; TRANSPORT; CLOSURE
AB Contaminants may persist for long time periods within low permeability portions of the vadose zone where they cannot be effectively treated and are a potential continuing source of contamination to ground water. Setting appropriate vadose zone remediation goals typically requires evaluating these persistent sources in terms of their impact on meeting ground water remediation goals. Estimating the impact on ground water can be challenging at sites with low aqueous recharge rates where vapor-phase movement is the dominant transport process in the vadose zone. Existing one-dimensional approaches for simulating transport of volatile contaminants in the vadose zone are considered and compared to a new flux-continuity-based assessment of vapor-phase contaminant movement from the vadose zone to the ground water. The flux-continuity-based assessment demonstrates that the ability of the ground water to move contaminant away from the water table controls the vapor-phase mass flux from the vadose zone across the water table. Limitations of these approaches are then discussed with respect to the required assumptions and the need to incorporate three-dimensional processes when evaluating vapor-phase transport from the vadose zone to the ground water. The carbon tetrachloride plume at the U.S. Department of Energy Hanford Site is used as the example site where persistent vadose zone contamination needs to be considered in the context of ground water remediation.
C1 [Truex, M. J.; Oostrom, M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Brusseau, M. L.] Univ Arizona, Tucson, AZ 85721 USA.
RP Truex, MJ (reprint author), Pacific NW Natl Lab, POB 999,MS K6-96, Richland, WA 99352 USA.
EM mj.truex@pnl.gov
FU Department of Energy's Office of Environmental Management
FX This work was funded through the Department of Energy's Office of
Environmental Management as a part of a project under Engineering and
Technology, Ground Water and Soil Remediation.
NR 12
TC 8
Z9 8
U1 1
U2 9
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1069-3629
J9 GROUND WATER MONIT R
JI Ground Water Monit. Remediat.
PD SPR
PY 2009
VL 29
IS 2
BP 63
EP 72
DI 10.1111/j.1745-6592.2009.01236.x
PG 10
WC Water Resources
SC Water Resources
GA 447EP
UT WOS:000266174700005
ER
PT J
AU McDonald, JP
Smith, RM
AF McDonald, John P.
Smith, Ronald M.
TI Concentration Profiles in Screened Wells under Static and Pumped
Conditions
SO GROUND WATER MONITORING AND REMEDIATION
LA English
DT Article
ID MASS BALANCE EVALUATION; WATER-QUALITY SAMPLES; FLOW; BIAS; SHALLOW;
PLUME; TESTS
AB Purge and pump samples from screened wells reflect concentration averaging and contaminant redistribution by wellbore flow. These issues were assessed in a screened well at the Hanford Site by investigating the vertical profile of a technetium-99 plume in a conventional well under static and pumped conditions. Specific conductance and technetium-99 concentrations were well correlated, and this enabled measurement of specific conductance to be used as a surrogate for technetium-99 concentration. Time-series measurements were collected during purging from three specific conductance probes installed in the well at 1.2, 3.1, and 4.9 m below the static water level in a 7.7-m-deep screened well. The vertical contaminant profile adjacent to the well in the aquifer was calculated using the concentration profile in the well during pumping, the pumping flow rate, and a wellbore flow and mixing model. The plume was found to be stratified in the aquifer-the highest concentrations occurred adjacent to the upper part of the screened interval. The purge and pump sample concentrations were 41% to 58% of the calculated peak concentration in the aquifer. Plume stratification in the aquifer adjacent to the well screen became more pronounced as pumping continued. Extended pumping may have partially reversed the effect of contaminant redistribution in the aquifer by wellbore flow and allowed the stratification of the plume to be more observable. It was also found that the vertical profile of contamination in the well under static (i.e., nonpumping conditions) was not representative of the profile in the aquifer. Thus, passive or micropurge sampling techniques, which sample the wellbore water at different depths, would not yield results representative of the aquifer in this well.
C1 [Smith, Ronald M.] Pacific NW Natl Lab, Environm Sustainabil Div, Richland, WA 99352 USA.
RP McDonald, JP (reprint author), CH2M Hill Plateau Remediat Co, Soil & Groundwater Remediat Project, POB 1600,MSIN R3-50, Richland, WA 99352 USA.
EM John_P_McDonald@rl.gov; rmsmith@pnl.gov
FU U. S. Department of Energy
FX Funding for this work was provided by the U. S. Department of Energy.
Thanks are extended to Dennis Dauble, Evan Dresel, Launa Morasch,
Georganne O'Connor, and Tyler Gilmore for their assistance and support
in preparing this article.
NR 21
TC 3
Z9 3
U1 2
U2 12
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1069-3629
J9 GROUND WATER MONIT R
JI Ground Water Monit. Remediat.
PD SPR
PY 2009
VL 29
IS 2
BP 78
EP 86
DI 10.1111/j.1745-6592.2009.01232.x
PG 9
WC Water Resources
SC Water Resources
GA 447EP
UT WOS:000266174700007
ER
PT J
AU Enqvist, S
Mellqvist, UH
Molne, J
Sletten, K
Murphy, C
Solomon, A
Stevens, FJ
Westermark, P
AF Enqvist, Stina
Mellqvist, Ulf-Henrik
Moelne, Johan
Sletten, Knut
Murphy, Charles
Solomon, Alan
Stevens, Fred J.
Westermark, Per
TI A father and his son with systemic AL amyloidosis
SO HAEMATOLOGICA-THE HEMATOLOGY JOURNAL
LA English
DT Letter
ID LIGHT-CHAIN; CONSTANT-REGION; TISSUE
C1 [Enqvist, Stina; Westermark, Per] Uppsala Univ, Dept Genet & Pathol, Uppsala, Sweden.
[Mellqvist, Ulf-Henrik] Sahlgrens Univ Hosp, Dept Hematol, Gothenburg, Sweden.
[Moelne, Johan] Sahlgrens Univ Hosp, Dept Pathol, Gothenburg, Sweden.
[Sletten, Knut] Univ Oslo, Biotechnol Ctr Oslo, Oslo, Norway.
[Murphy, Charles; Solomon, Alan] Univ Tennessee, Human Immunol & Canc Program, Dept Med, Grad Sch Med, Knoxville, TN USA.
[Stevens, Fred J.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
RP Westermark, P (reprint author), Rudbeck Lab, C5, SE-75185 Uppsala, Sweden.
EM per.westermark@gen-pat.uu.se
OI Molne, Johan/0000-0001-6241-7117
NR 12
TC 3
Z9 3
U1 0
U2 0
PU FERRATA STORTI FOUNDATION
PI PAVIA
PA VIA GIUSEPPE BELLI 4, 27100 PAVIA, ITALY
SN 0390-6078
J9 HAEMATOL-HEMATOL J
JI Haematol-Hematol. J.
PD MAR
PY 2009
VL 94
IS 3
BP 437
EP 439
DI 10.3324/haematol.13640
PG 3
WC Hematology
SC Hematology
GA 415GP
UT WOS:000263922600025
PM 19176364
ER
PT J
AU Parkhurst, MA
Guilmette, RA
AF Parkhurst, Mary Ann
Guilmette, Raymond A.
TI OVERVIEW OF THE CAPSTONE DEPLETED URANIUM STUDY OF AEROSOLS FROM IMPACT
WITH ARMORED VEHICLES: TEST SETUP AND AEROSOL GENERATION,
CHARACTERIZATION, AND APPLICATION IN ASSESSING DOSE AND RISK
SO HEALTH PHYSICS
LA English
DT Article
DE aerosols; uranium, depleted; modeling, dose assessment; radiation risk
ID VETERANS; SURVEILLANCE
AB The Capstone Depleted Uranium (DU) Aerosol Characterization and Risk Assessment Study was conducted to generate data about DU aerosols generated during the perforation of armored combat vehicles with large-caliber DU penetrators, and to apply the data in assessments of human health risks to personnel exposed to these aerosols, primarily through inhalation, during the 1991 Gulf War or in future military operations. The Capstone study consisted of two components: 1) generating, sampling, and characterizing DU aerosols fly firing at and perforating combat vehicles, and 2) applying the source-term quantities and characteristics of the aerosols to the evaluation or doses and risks. This paper reviews the background of the study including the bases for the study, previous reviews of DU particles and health assessments, from DU used by the U.S. military, the objectives of the study components, the participants and oversight teams, and the types of exposures it was intended to evaluate. It then discusses exposure scenarios used in the dose and risk assessment and provides an overview of how the field tests and dose and risk assessments were conducted.
C1 [Parkhurst, Mary Ann] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Guilmette, Raymond A.] Lovelace Resp Res Inst, Albuquerque, NM 87108 USA.
RP Parkhurst, MA (reprint author), Pacific NW Natl Lab, POB 999,K3-55, Richland, WA 99352 USA.
EM maryann.parkhurst@pnl.gov
FU U.S. Office of the Special Assistant for Gulf War Illnesses, Medical
Readiness and Military Deployment (OSAGWI); U.S. Army
FX Many were involved in planning, implementing, and evaluating the
Capstone study. The authors would like to first acknowledge the rest of
the Capstone team for their many contributions to the planning and
implementation of the field portion of this study and the writing and
review of the reports. We thank the staff at the U.S. Army Aberdeen Test
Center, particularly Jesse Meerdink, Bruce Taylor, Dana Blankenbiller,
and the ATC Superbox gunners and support staff for vehicle setup and
test firing. We also thank the scientific peer review panel for their
suggestions and recommendations regarding the conduct of these tests.
Oversight for this study was provided by Michael Los and Wade Bunting,
formerly of the U.S. Army Heavy Metals Office, and the Depleted Uranium
Integrated Process Research (DR-IRP) steering committee. Funding was
provided by the U.S. Office of the Special Assistant for Gulf War
Illnesses, Medical Readiness and Military Deployment (OSAGWI, currently
referred to as Force Health Protection & Readiness Policy & Programs),
and the U.S. Army. Jefferson Prather and Dr. David Case provided
significant insights in planning and implementing this Study. The Human
Health Risk Assessment was conducted under the auspices of the U.S.
Center for Health Promotion and Preventive Medicine. Of this
organization COL Mark A. Melanson, PhD, CHP, served as Program Manager,
Mr. David P. Alberth was Master Consultant, and Ms. Fran Szrom, CHP, Dr.
Gerald Falo, PhD, CHP, and LTC Gordon M. Lodde (USA-Ret.) provided
extensive support. Dr. Joseph McDonald (Emeritus Laboratory Fellow), Don
Bihl, Cary Counts, and Dave Payson, Pacific Northwest National
Laboratory, provided additional reviews of it number of papers in this
special issue.
NR 27
TC 14
Z9 15
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAR
PY 2009
VL 96
IS 3
BP 207
EP 220
PG 14
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 407DD
UT WOS:000263342900001
PM 19204481
ER
PT J
AU Holmes, TD
Guilmette, RA
Cheng, YS
Parkhurst, MA
Hoover, MD
AF Holmes, Thomas D.
Guilmette, Raymond A.
Cheng, Yung Sung
Parkhurst, Mary Ann
Hoover, Mark D.
TI AEROSOL SAMPLING SYSTEM FOR COLLECTION OF CAPSTONE DEPLETED URANIUM
PARTICLES IN A HIGH-ENERGY ENVIRONMENT
SO HEALTH PHYSICS
LA English
DT Article
DE uranium, depleted; aerosols; air sampling; monitoring, air
AB The Capstone Depleted Uranium (DU) Aerosol Study was undertaken to obtain aerosol samples resulting from a large-caliber DU penetrator striking an Abrams or Bradley test vehicle. The sampling strategy was designed to (1) optimize the performance of the samplers and maintain their integrity in the extreme environment created during perforation of an armored vehicle by a DU penetrator, (2) collect aerosols as a function of time post perforation, and (3) obtain size-classified samples for analysis of chemical composition, particle morphology, and solubility in lung fluid. This paper describes the experimental setup and sampling methodologies used to achieve these objectives. Custom-designed arrays of sampling heads were secured to the inside of the target in locations approximating the breathing zones of the crew locations in the test vehicles. Each array was designed to support nine filter cassettes and nine cascade impactors mounted with quick-disconnect fittings. Shielding and sampler placement strategies were used to minimize sampler loss caused by the penetrator impact and the resulting fragments of eroded penetrator and perforated armor. A cyclone train was used to collect larger quantities of DU aerosol for measurement of chemical composition and solubility. A moving filter sample was used to obtain semicontinuous samples for DU concentration determination. Control for the air samplers was provided by live remotely located valve control and pressure monitoring units located inside and around the test vehicle. These units were connected to a computer interface chassis and controlled using a customized LabVIEW engineering computer control program. The aerosol sampling arrays and control systems for the Capstone study provided the needed aerosol samples for physicochemical analysis, and the resultant data were used for risk assessment of exposure to DU aerosol.
C1 [Holmes, Thomas D.; Guilmette, Raymond A.; Cheng, Yung Sung] Lovelace Resp Res Inst, Albuquerque, NM 87108 USA.
[Parkhurst, Mary Ann] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Hoover, Mark D.] NIOSH, Morgantown, WV 26505 USA.
RP Cheng, YS (reprint author), Lovelace Resp Res Inst, 2425 Ridgecrest Dr SE, Albuquerque, NM 87108 USA.
EM ycheng@lrri.org
RI Hoover, Mark/I-4201-2012
OI Hoover, Mark/0000-0002-8726-8127
FU U.S. Office of file Special Assistant for Gulf War Illness, Medical
Readiness and Military Deployment (OSAGWI); U.S. Army
FX The authors wish to acknowledge the staff at the U.S. Army Aberdeen Test
Center (ATC) fill their support with installation of sampling equipment,
shield design, and sample removal, particularly Ellory Sanderson, Bob
Brown, Jesse Meerdink, Bruce Taylor, James Baldwin, Dana Blankenbiller,
and John Beckman for vehicle preparation and shield and sampler removal,
and Julie Long and Kathy Burns for sampler handling, The authors would
also like to thank Ted Orwat for building the sampling control System
and file machine shop at ATC that Fabricated the sampling array and the
shielding cover. We wish to thank the other Capstone learn members for
their input in designing the sampling scheme and overall assistance in
its implementation and the Capstone peer reviewers and participants of
the April 2000 aerosol workshop for their insights and guidance. Funding
was provided by the U.S. Office of file Special Assistant for Gulf War
Illness, Medical Readiness and Military Deployment (OSAGWI, currently
referred to as the Deployment Health Support Directorate), and the U.S.
Army. The findings and conclusions in this report are those of the
authors and do not necessarily represent the views of their respective
organizations.
NR 16
TC 14
Z9 15
U1 0
U2 4
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAR
PY 2009
VL 96
IS 3
BP 221
EP 237
PG 17
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 407DD
UT WOS:000263342900002
PM 19204482
ER
PT J
AU Szrom, F
Falo, GA
Parkhurst, MA
Whicker, JJ
Alberth, DP
AF Szrom, Frances
Falo, Gerald A.
Parkhurst, Mary Ann
Whicker, Jeffrey J.
Alberth, David P.
TI CALCULATING CAPSTONE DEPLETED URANIUM AEROSOL CONCENTRATIONS FROM BETA
ACTIVITY MEASUREMENTS
SO HEALTH PHYSICS
LA English
DT Article
DE beta particles; counting efficiency; radioactivity, airborne; uranium,
depleted
AB Beta activity measurements were used as surrogate measurements of uranium mass in aerosol samples collected during the field testing phase of the Capstone Depleted Uranium (DU) Aerosol Study. These aerosol samples generated by the perforation of armored combat vehicles were used to characterize the DU source term for the subsequent Human Health Risk Assessment (HHRA) of Capstone aerosols. Establishing a calibration curve between beta activity measurements and uranium mass measurements is straightforward if the uranium isotopes are in equilibrium with their immediate short-lived, beta-emitting progeny. For DU samples collected during the Capstone study, it was determined that the equilibrium between the uranium isotopes and their immediate short-lived, beta-emitting progeny had been disrupted when penetrators had perforated target vehicles. Adjustments were made to account for the disrupted equilibrium and for wall losses in the aerosol samplers. Values for the equilibrium fraction ranged from 0.16 to 1, and the wall loss correction factors ranged from 1 to 1.92. This paper describes the process used and adjustments necessary to calculate uranium mass from proportional counting measurements.
C1 [Szrom, Frances; Falo, Gerald A.; Alberth, David P.] USA, Ctr Hlth Promot & Prevent Med, Aberdeen Proving Ground, MD 21010 USA.
[Parkhurst, Mary Ann] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Whicker, Jeffrey J.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Szrom, F (reprint author), USA, Ctr Hlth Promot & Prevent Med, 5158 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA.
EM fran.szrom@us.army.mil
FU U.S. Office of the Special Assistant for Gulf War Illnesses, Medical
Readiness and Military Deployment (OSAGWI); U.S. Army
FX The authors would like to thank the ATC Health Physics Laboratory, in
particular Julie Long, and the USACHPPM Laboratory staff, in particular
David Morrow, Ronald Swatski, Thomas Beegle, and Angel Christman. We
also want to thank John Collins for his invaluable assistance with the
sample loss evaluation. Technical reviews were conducted by Mr. Don Bihl
and Dr. Joseph McDonald (ret.) of Pacific Northwest National Laboratory.
Funding was provided by the U.S. Office of the Special Assistant for
Gulf War Illnesses, Medical Readiness and Military Deployment (OSAGWI,
currently referred to as Force Health Protection & Readiness Policy &
Programs) and the U.S. Army.
NR 9
TC 5
Z9 5
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAR
PY 2009
VL 96
IS 3
BP 238
EP 250
PG 13
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 407DD
UT WOS:000263342900003
PM 19204483
ER
PT J
AU Parkhurst, MA
Cheng, YS
Kenoyer, JL
Traub, RJ
AF Parkhurst, Mary Ann
Cheng, Yung Sung
Kenoyer, Judson L.
Traub, Richard J.
TI PHYSICOCHEMICAL CHARACTERIZATION OF CAPSTONE DEPLETED URANIUM AEROSOLS
I: URANIUM CONCENTRATION IN AEROSOLS AS A FUNCTION OF TIME AND PARTICLE
SIZE
SO HEALTH PHYSICS
LA English
DT Article
DE aerosols; inhalation; radioactivity, airborne; uranium, depleted
AB During the Capstone Depleted Uranium (DU) Aerosol Study, aerosols containing DU were produced inside unventilated armored vehicles (i.e., Abrams tanks and Bradley Fighting Vehicles) by perforation with large-caliber DU penetrators. These aerosols were collected and characterized, and the data were subsequently used to assess human health risks to personnel exposed to DU aerosols. The DU content of each aerosol sample was first quantified by radioanalytical methods, and selected samples, primarily those from the cyclone separator grit chambers, were analyzed radiochemically. Deposition occurred inside the vehicles as particles settled on interior surfaces. Settling rates of uranium from the aerosols were evaluated using filter cassette samples that collected aerosol as total mass over eight sequential time intervals. A moving filter was used to collect aerosol samples over time, particularly within the first minute after a shot. The results demonstrate that the peak uranium concentration in the aerosol occurred in the first 10 s after perforation, and the concentration decreased in the Abrams tank shots to about 50% within 1 min and to less than 2% after 30 min. The initial and maximum uranium concentrations were lower in the Bradley vehicle than those observed in the Abrams tank, and the concentration levels decreased more slowly. Uranium mass concentrations in the aerosols as a function of particle size were evaluated using samples collected in a cyclone sampler, which collected aerosol continuously for 2 h after perforation. The percentages of uranium mass in the cyclone separator stages ranged from 38 to 72% for the Abrams tank with conventional armor. In most cases, it varied with particle size, typically with less uranium associated with the smaller particle sizes. Neither the Abrams tank with DU armor nor the Bradley vehicle results were specifically correlated with particle size and can best be represented by their average uranium mass concentrations of 65 and 24%, respectively.
C1 [Parkhurst, Mary Ann; Traub, Richard J.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Cheng, Yung Sung] Lovelace Resp Res Inst, Albuquerque, NM 87108 USA.
[Kenoyer, Judson L.] Dade Moeller & Associates Inc, Fairfax, VA 22031 USA.
RP Parkhurst, MA (reprint author), Pacific NW Natl Lab, POB 999,K3-55, Richland, WA 99352 USA.
EM maryann.parkhurst@pnl.gov
FU U.S. Office of the Special Assistant for Gulf War Illnesses, Medical
Readiness and Military Deployment (OSAGWI); U.S. Army
FX Acknowledgments-The authors thank Toni Farmer, Chuck Soderquist, Lori
Darriell, all from PNNL, and Thomas Beegle, USACHPPM, for uranium
separation and chemical analysis. Frances Szrom, USACHPPM. directed the
USACHPPM analytical team. Norma Van Houten, PNNL, applied SigmaPlot 2000
to the analysis of time-sequenced IOM-sampled uranium concentrations.
Frances Szrom and Gerald Falo, USACHPPM, performed the ANOVA evaluation.
Funding was provided by the U.S. Office of the Special Assistant for
Gulf War Illnesses, Medical Readiness and Military Deployment (OSAGWI,
currently referred to as Force Health Protection & Readiness Policy &
Programs), and the U.S. Army.
NR 14
TC 7
Z9 7
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAR
PY 2009
VL 96
IS 3
BP 251
EP 265
PG 15
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 407DD
UT WOS:000263342900004
PM 19204484
ER
PT J
AU Cheng, YS
Kenoyer, JL
Guilmette, RA
Parkhurst, MA
AF Cheng, Yung Sung
Kenoyer, Judson L.
Guilmette, Raymond A.
Parkhurst, Mary Ann
TI PHYSICOCHEMICAL CHARACTERIZATION OF CAPSTONE DEPLETED URANIUM AEROSOLS
II: PARTICLE SIZE DISTRIBUTIONS AS A FUNCTION OF TIME
SO HEALTH PHYSICS
LA English
DT Article
DE uranium, depleted; aerosols; dosimetry; inhalation
AB The Capstone Depleted Uranium (DU) Aerosol Study, which generated and characterized aerosols containing DU from perforation of armored vehicles with large-caliber DU penetrators, incorporated a sampling protocol to evaluate particle size distributions. Aerosol particle size distribution is an important parameter that influences aerosol transport and deposition processes as well as the dosimetry of the inhaled particles. These aerosols were collected on cascade impactor substrates using a pre-established time sequence following the firing event to analyze the uranium concentration and particle size of the aerosols as a function of time. The impactor substrates were analyzed using proportional counting, and the derived uranium content of each served as input to the evaluation of particle size distributions. Activity median aerodynamic diameters (AMADs) of the particle size distributions were evaluated using unimodal and bimodal models. The particle size data from the impactor measurements were quite variable. Most size distributions measured in the test based on activity had bimodal size distributions with a small particle size mode in the range of between 0.2 and 1.2 mu m and a large size mode between 2 and 15 mu m. In general, the evolution of particle size over time showed an overall decrease of average particle size from AMADs of 5 to 10 mu m shortly after perforation to around 1 mu m at the end of the 2-h sampling period. The AMADs generally decreased over time because of settling. Additionally, the median diameter of the larger size mode decreased with time. These results were used to estimate the dosimetry of inhaled DU particles.
C1 [Cheng, Yung Sung; Guilmette, Raymond A.] Lovelace Resp Res Inst, Albuquerque, NM 87108 USA.
[Kenoyer, Judson L.] Dade Moeller & Associates, Fairfax, VA 22031 USA.
[Parkhurst, Mary Ann] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Cheng, YS (reprint author), Lovelace Resp Res Inst, 2425 Ridgecrest Dr,SE, Albuquerque, NM 87108 USA.
EM ycheng@lrri.org
FU U.S. Office of the Special Assistant for Gulf War Illnesses, Medical
Readiness and Military Deployment (OSAGWI); U.S. Army
FX The authors would like to thank Norma Van Houten for her application of
the SigniaPlot 2000 software program to calculate the AMADs, GSDs, and
related values for the uranium mass concentrations collected on the CI
substrates. and John Glissmeyer, who performed the quality assurance
checks of the data. A confirmatory evaluation of particle sizes and
shapes was conducted by Bruce Arey using scanning electron microscopy.
Funding was provided by the U.S. Office of the Special Assistant for
Gulf War Illnesses, Medical Readiness and Military Deployment (OSAGWI,
currently referred to as Force Health Protection & Readiness Policy &
Programs). and the U.S. Army.
NR 19
TC 11
Z9 11
U1 0
U2 4
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAR
PY 2009
VL 96
IS 3
BP 266
EP 275
PG 10
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 407DD
UT WOS:000263342900005
PM 19204485
ER
EF