FN Thomson Reuters Web of Science™
VR 1.0
PT S
AU Gaskill, DK
Hite, JK
Culbertson, JC
Jernigan, GG
Tedesco, JL
Nyakiti, LO
Wheeler, VD
Myers-Ward, RL
Garces, NY
Eddy, CR
AF Gaskill, D. K.
Hite, J. K.
Culbertson, J. C.
Jernigan, G. G.
Tedesco, J. L.
Nyakiti, L. O.
Wheeler, V. D.
Myers-Ward, R. L.
Garces, N. Y.
Eddy, C. R., Jr.
BE Monakhov, EV
Hornos, T
Svensson, BG
TI Observations on C-face SiC Graphene Growth in Argon
SO SILICON CARBIDE AND RELATED MATERIALS 2010
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 8th European Conference on Silicon Carbide and Related Materials
CY AUG 29-SEP 02, 2010
CL Sundvolden Conf Ctr, Oslo, NORWAY
SP Aixtron, Dow Corning, Birkeland Innovation, Centrotherm, CREE Inc, Gen Elect, LPE, Norden NordForsk, SiCED, SiCrystal AG, Res Council Norway, Univ Oslo
HO Sundvolden Conf Ctr
DE Epitaxial graphene; graphene growth; C-face SiC
ID EPITAXIAL GRAPHENE; CARRIER MOBILITY
AB The growth of epitaxial graphene on C-face 6H-SiC substrates is investigated using process conditions that can form small, local areas of graphene. The thickness of SiC lost to Si sublimation is not completely countered by the thickness of the resulting graphene and so graphene-covered basins (GCBs) are formed. The GCBs are most likely nucleated at threading dislocations from the substrate. The GCB morphology exhibits ridges, similar to those found on continuous films. The GCBs expand through erosion of the surrounding SiC substrate walls, eventually coalescing into continuous films. The ratio of the Raman D and G peaks was used to estimate the crystallite length scale and it was found to be about 200 nm for small GCBs and > 1 mu m for continuous films.
C1 [Gaskill, D. K.; Hite, J. K.; Tedesco, J. L.; Nyakiti, L. O.; Wheeler, V. D.; Myers-Ward, R. L.; Garces, N. Y.; Eddy, C. R., Jr.] USN, Res Lab, Adv SiC Epitaxial Res Lab, Washington, DC 20375 USA.
[Culbertson, J. C.] USN, Washington, DC 20375 USA.
RP Gaskill, DK (reprint author), USN, Res Lab, Adv SiC Epitaxial Res Lab, Washington, DC 20375 USA.
EM gaskill@nrl.navy.mil
RI Hite, Jennifer/L-5637-2015
OI Hite, Jennifer/0000-0002-4090-0826
FU NRL's NanoScience Institute; Office of Naval Research
FX Dr.J.K. Hite, Dr. L.O. Nyakiti, Dr. J.L. Tedesco and Dr. V.D. Wheeler
are grateful for ASEE postdoctoral fellowships. This work was supported
through NRL's NanoScience Institute and funded by the Office of Naval
Research.
NR 12
TC 2
Z9 2
U1 0
U2 6
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2011
VL 679-680
BP 789
EP +
DI 10.4028/www.scientific.net/MSF.679-680.789
PG 2
WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary;
Physics, Applied
SC Engineering; Materials Science; Physics
GA BVJ83
UT WOS:000291673500189
ER
PT S
AU Goss, JP
Briddon, PR
Nagareddy, VK
Wright, NG
Horsfall, AB
Caldwell, JD
Gaskill, DK
Jernigan, GG
AF Goss, Jonathan P.
Briddon, Patrick R.
Nagareddy, Venkata K.
Wright, Nicholas G.
Horsfall, Alton B.
Caldwell, Joshua D.
Gaskill, D. Kurt
Jernigan, Glenn G.
BE Monakhov, EV
Hornos, T
Svensson, BG
TI Influence of intercalated silicon on the transport properties of
graphene
SO SILICON CARBIDE AND RELATED MATERIALS 2010
SE Materials Science Forum
LA English
DT Proceedings Paper
CT 8th European Conference on Silicon Carbide and Related Materials
CY AUG 29-SEP 02, 2010
CL Sundvolden Conf Ctr, Oslo, NORWAY
SP Aixtron, Dow Corning, Birkeland Innovation, Centrotherm, CREE Inc, Gen Elect, LPE, Norden NordForsk, SiCED, SiCrystal AG, Res Council Norway, Univ Oslo
HO Sundvolden Conf Ctr
DE graphene; silicon; doping; density function theory
ID EPITAXIAL GRAPHENE; POINTS
AB Epitaxial graphene produced from SiC substrates exhibits a carrier mobility reduction thought to arise from intercalated silicon. We present the results of density functional simulations and show that individual silicon atoms are highly mobile on and between graphene sheets, suggesting that thermally stable structures involving individual Si impurities are likely to result from the interaction of silicon with defects in the graphene sheets.
C1 [Goss, Jonathan P.; Briddon, Patrick R.; Nagareddy, Venkata K.; Wright, Nicholas G.; Horsfall, Alton B.] Newcastle Univ, Sch Elect Elect & Comp Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
[Caldwell, Joshua D.; Gaskill, D. Kurt; Jernigan, Glenn G.] US Navy, Res Lab, Washington, DC 20375 USA.
RP Goss, JP (reprint author), Newcastle Univ, Sch Elect Elect & Comp Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
EM J.P.Goss@ncl.ac.k; Patrick.Briddon@ncl.ac.k; V.K.Nagareddy@ncl.ac.k;
N.G.Wright@ncl.ac.k; A.B.Horsfall@ncl.ac.k;
joshua.caldwell@nrl.navy.mil; kurt.gaskill@nrl.navy.mil;
glenn.jernigan@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008; Wright, Nick/O-1092-2013; Nagareddy,
Karthik/F-3380-2014;
OI Caldwell, Joshua/0000-0003-0374-2168; Nagareddy,
Karthik/0000-0002-8765-3834; Wright, Nicholas/0000-0003-3169-4159
FU Extreme Technologies Project; EPSRC; Dorothy Hodgkins Postgraduate Award
scheme
FX We wish to thank ONE North East under the Extreme Technologies Project
and EPSRC for a PhD studentship under the Dorothy Hodgkins Postgraduate
Award scheme.
NR 13
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U1 1
U2 9
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 0255-5476
J9 MATER SCI FORUM
PY 2011
VL 679-680
BP 793
EP +
DI 10.4028/www.scientific.net/MSF.679-680.793
PG 2
WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary;
Physics, Applied
SC Engineering; Materials Science; Physics
GA BVJ83
UT WOS:000291673500190
ER
PT S
AU Budzien, SA
Stephan, AW
Bishop, RL
Christensen, AB
Hecht, JH
Minschwaner, KR
AF Budzien, Scott A.
Stephan, Andrew W.
Bishop, Rebecca L.
Christensen, Andrew B.
Hecht, James H.
Minschwaner, Kenneth R.
BE Fineschi, S
Fennelly, J
TI The RAIDS experiment on the ISS: On-orbit Performance
SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Solar Physics and Space Weather Instrumentation IV
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE airglow; ultraviolet; remote sensing; thermosphere; ionosphere
AB The Remote Atmospheric and Ionospheric Detection System (RAIDS) is new NASA experiment studying the Earth's thermosphere and ionosphere from a vantage point on the International Space Station (ISS). RAIDS along with a companion hyperspectral imaging experiment were launched in September 2009 to operate as the first US payload on the Japanese Experiment Module-Exposed Facility. The scientific objectives of the RAIDS experiment are to study the temperature of the lower thermosphere (100-200 km), to measure composition and chemistry of the lower thermosphere and ionosphere, and to measure the initial source of O+ 83.4 nm emission. The RAIDS sensor complement includes three photometers, three spectrometers, and two spectrographs which span the wavelength range 50-874 nm and scan or image the atmospheric limb 90-300 km. After installation aboard the ISS, RAIDS underwent a 30-day checkout period before entering science operations. RAIDS is serving as a pathfinder for atmospheric remote sensing from the ISS, and the experiment team gained valuable operational insights using this space platform throughout the first year of the mission. This paper describes key aspects of experiment performance relevant to interpreting RAIDS science data and designing future atmospheric remote sensing experiments for the ISS.
C1 [Budzien, Scott A.; Stephan, Andrew W.] USN, Res Lab, Washington, DC 20375 USA.
RP Budzien, SA (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 12
TC 2
Z9 2
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-758-2
J9 PROC SPIE
PY 2011
VL 8148
AR 814805
DI 10.1117/12.893962
PG 12
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BXZ21
UT WOS:000297671900004
ER
PT S
AU Moses, JD
Brown, C
Doschek, G
Ko, YK
Korendyke, C
Laming, JM
Socker, D
Tylka, A
McMullin, D
Ng, C
Wassom, S
Lee, M
Auchere, F
Fineschi, S
Carter, T
AF Moses, J. Daniel
Brown, Charles
Doschek, George
Ko, Yuan-Kuen
Korendyke, Clarence
Laming, J. Martin
Socker, Dennis
Tylka, Allen
McMullin, Donald
Ng, Chee
Wassom, Steven
Lee, Martin
Auchere, Frederic
Fineschi, Silvano
Carter, Tim
BE Fineschi, S
Fennelly, J
TI The coronal suprathermal particle explorer (C-SPEX)
SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Solar Physics and Space Weather Instrumentation IV
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE UV spectroscopy; solar physics; solar energetic particles; coronagraph;
solar coronal spectroscopy; space weather; International Space Station
ID NEAR-SUN; SHOCK; ACCELERATION; INJECTION
AB The primary science objective of the Coronal Suprathermal Particle Explorer (C-SPEX) is to investigate the spatial and temporal variations of coronal suprathermal particle populations that are seeds for acceleration to solar energetic particles (SEPs). It is understood that such seed particle populations vary with coronal structures and can change responding to solar flare and coronal mass ejection (CME) events. Models have shown that higher densities of suprathermal protons can result in higher rates of acceleration to high energies. Understanding the variations in the suprathermal seed particle population is thus crucial for understanding the variations in SEPs. However, direct measurements are still lacking. C-SPEX will measure the variation in the suprathermal protons across various coronal magnetic structures, before/after the passage of CME shocks, in the post-CME current sheets, and before/after major solar flares. Understanding the causes for variation in the suprathermal seed particle population and its effect on the variation in SEPs will also help build the predictive capability of SEPs that reach Earth. The C-SPEX measurements will be obtained from instrumentation on the International Space Station (ISS) employing well-established UV coronal spectroscopy techniques.
C1 [Moses, J. Daniel; Brown, Charles; Doschek, George; Ko, Yuan-Kuen; Korendyke, Clarence; Laming, J. Martin; Socker, Dennis; Tylka, Allen] USN, Res Lab, Washington, DC 20375 USA.
RP Moses, JD (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Tylka, Allan/G-9592-2014;
OI Auchere, Frederic/0000-0003-0972-7022
NR 11
TC 1
Z9 1
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-758-2
J9 PROC SPIE
PY 2011
VL 8148
AR 81480J
DI 10.1117/12.896868
PG 8
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BXZ21
UT WOS:000297671900018
ER
PT S
AU Stephan, AW
Christensen, AB
Minschwaner, K
Budzien, SA
Bishop, RL
Hecht, JH
AF Stephan, Andrew W.
Christensen, Andrew B.
Minschwaner, Kenneth
Budzien, Scott A.
Bishop, Rebecca L.
Hecht, James H.
BE Fineschi, S
Fennelly, J
TI Characterization of sensitivity degradation seen from the UV to NIR by
RAIDS on the International Space Station
SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Solar Physics and Space Weather Instrumentation IV
CY AUG 21-24, 2011
CL San Diego, CA
SP SPIE
DE International Space Station; ultraviolet; contamination; calibration;
remote sensing
AB This paper presents an analysis of the sensitivity changes experienced by three of the eight sensors that comprise the Remote Atmospheric and Ionospheric Detection System (RAIDS) after more than a year operating on board the International Space Station (ISS). These sensors are the Extreme Ultraviolet Spectrograph (EUVS) that covers 550-1100 angstrom, the Middle Ultraviolet (MUV) spectrometer that covers 1900-3100 angstrom, and the Near Infrared Spectrometer (NIRS) that covers 7220-8740 angstrom. The scientific goal for RAIDS is comprehensive remote sensing of the temperature, composition, and structure of the lower thermosphere and ionosphere from 85-200 km. RAIDS was installed on the ISS Japanese Expansion Module External Facility (JEM-EF) in September of 2009. After initial checkout the sensors began routine operations that are only interrupted for sensor safety by occasional ISS maneuvers as well as a few days per month when the orbit imparts a risk from exposure to the Sun. This history of measurements has been used to evaluate the rate of degradation of the RAIDS sensors exposed to an environment with significant sources of particulate and molecular contamination. The RAIDS EUVS, including both contamination and detector gain sag, has shown an overall signal loss rate of 0.2% per day since the start of the mission, with an upper boundary of 0.13% per day attributed solely to contamination effects. This upper boundary is driven by uncertainty in the change in the emission field due to changing solar conditions, and there is strong evidence that the true loss due to contamination is significantly smaller. The MUV and NIRS have shown stability to within 1% over the first year of operations.
C1 [Stephan, Andrew W.; Budzien, Scott A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Stephan, AW (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM andrew.stephan@nrl.navy.mil
NR 9
TC 3
Z9 3
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-758-2
J9 PROC SPIE
PY 2011
VL 8148
AR 814804
DI 10.1117/12.894093
PG 11
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BXZ21
UT WOS:000297671900003
ER
PT S
AU Sanghera, J
Shaw, B
Kim, W
Villalobos, G
Baker, C
Frantz, J
Hunt, M
Sadowski, B
Aggarwal, I
AF Sanghera, Jasbinder
Shaw, Brandon
Kim, Woohong
Villalobos, Guillermo
Baker, Colin
Frantz, Jesse
Hunt, Michael
Sadowski, Bryan
Aggarwal, Ishwar
BE Clarkson, WA
Hodgson, N
Shori, R
TI Ceramic laser materials
SO SOLID STATE LASERS XX: TECHNOLOGY AND DEVICES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Solid State Lasers XX - Technology and Devices
CY JAN 23-27, 2011
CL San Francisco, CA
SP SPIE
DE ceramics; laser materials; 100 KW; microchip lasers; ultrashort pulse;
ceramic composites; non-oxide ceramics
ID SOLID-STATE LASERS; PERFORMANCE; GENERATION; CRYSTALS
AB Ceramic laser materials have come a long way since the first demonstration of lasing in 1964. Improvements in powder synthesis and ceramic sintering as well as novel ideas have led to notable achievements. These include the first Nd:YAG ceramic laser in 1995, breaking the 1 KW mark in 2002 and then the remarkable demonstration of more than 100 KW output power from a YAG ceramic laser system in 2009. Additional developments have included highly doped microchip lasers, ultrashort pulse lasers, novel materials such as sesquioxides, fluoride ceramic lasers, selenide ceramic lasers in the 2 to 3 mu m region, composite ceramic lasers for better thermal management, and single crystal lasers derived from polycrystalline ceramics. This paper highlights some of these notable achievements.
C1 [Sanghera, Jasbinder; Shaw, Brandon; Kim, Woohong; Villalobos, Guillermo; Baker, Colin; Frantz, Jesse; Aggarwal, Ishwar] USN, Res Lab, Washington, DC 20375 USA.
RP Sanghera, J (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM sanghera@nrl.navy.mil
RI Baker, Colin/I-6657-2015
NR 34
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U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8449-9
J9 PROC SPIE
PY 2011
VL 7912
AR 79121Q
DI 10.1117/12.879521
PG 15
WC Optics; Physics, Applied
SC Optics; Physics
GA BXZ84
UT WOS:000297726600047
ER
PT J
AU Barbara, KA
Sukowati, S
Rusmiarto, S
Susapto, D
Bangs, MJ
Kinzer, MH
AF Barbara, Kathryn A.
Sukowati, Supratman
Rusmiarto, Saptoro
Susapto, Dwiko
Bangs, Michael J.
Kinzer, Michael H.
TI SURVEY OF ANOPHELES MOSQUITOES (DIPTERA: CULICIDAE) IN WEST SUMBA
DISTRICT, INDONESIA
SO SOUTHEAST ASIAN JOURNAL OF TROPICAL MEDICINE AND PUBLIC HEALTH
LA English
DT Article
DE Anopheles; malaria vectors; Sumba Island; Indonesia
ID FIELD-EVALUATION; LOMBOK ISLAND; SPOROZOITES; MALARIA
AB In August 2007, mosquitoes were collected using four different collection methods at 2 upland interior and 2 coastal villages in West Sumba District, East Nusa Tenggara Province, Indonesia. Methods included human-baited and unbaited tent and malaise traps, human-landing collections (HLC), and unbaited CDC light traps. Mosquitoes were identified to species by morphological characters and all anophelines were tested for malaria circumsporozoite protein (CSP) using an enzyme-linked immunosorbent assay (ELISA). During six trap nights, 4,174 Anopheles mosquitoes belonging to 13 species were captured and identified: An. aconitus, An. annularis, An. barbirostris, An. flavirostris, Hyrcanus Group species, An. indefinitus, An. kochi, An. leucosphyrus group, An. maculatus s.l., An. subpictus s.l., An. sundaicus s.l., An. tessellatus, and An. vagus. Of potential disease vectors, An. annularis, An. subpictus, and An. vagus were the most frequently collected species in the upland interior sites, whereas An. sundaicus, An. subpictus, and An. vagus were most commonly found along the coast. The predominant species from evening human-landing collections (mosquitoes per human) were An. subpictus and An. vagus in the upland interior and An. sundaicus along the coast. All mosquitoes were non-reactive for Plasmodium CSP. One specimen of the An. leucosphyrus group was captured from indoor HLC in Tenateke Village, an upland interior location. This finding appears to represent a new collection record for Sumba Island.
C1 [Barbara, Kathryn A.; Rusmiarto, Saptoro; Susapto, Dwiko; Kinzer, Michael H.] USN, Med Res Unit 2, Jakarta, Indonesia.
[Sukowati, Supratman] Natl Inst Hlth Res & Dev, Ecol & Hlth Status Res & Dev Ctr, Jakarta, Indonesia.
[Bangs, Michael J.] Publ Hlth & Malaria Control Dept, Kuala Kencana, Papua, Indonesia.
RP Barbara, KA (reprint author), USN, Environm & Prevent Med Unit 2, 1285 W D St, Norfolk, VA 23511 USA.
EM kbarbara@bvwireless.net
FU US Department of Defense Global Epidemic Information System
FX This study was supported by the US Department of Defense Global Epidemic
Information System. We thank Budi Santoso, Malaria Field Coordinator for
West Sumba District and Marten Caley, Head of Ministry of Health for
West Sumba District for their enthusiastic support of this project.
Craig Stoops supplied input on study design and methodology. Agus Rahmat
provided maps depicted in Fig 1. The opinions or assertions expressed
herein are the private views of the authors and are not to be construed
as representing those of the US Navy, or the Department of Defense.
NR 25
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PU SOUTHEAST ASIAN MINISTERS EDUC ORGANIZATION
PI BANGKOK
PA SEAMEO-TROPMED, 420-6 RAJVITHI RD,, BANGKOK 10400, THAILAND
SN 0125-1562
J9 SE ASIAN J TROP MED
JI Southeast Asian J. Trop. Med. Public Health
PD JAN
PY 2011
VL 42
IS 1
BP 71
EP 82
PG 12
WC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
SC Public, Environmental & Occupational Health; Infectious Diseases;
Tropical Medicine
GA 720KF
UT WOS:000287278900011
PM 21323168
ER
PT J
AU Dahl, EJ
AF Dahl, Erik J.
TI The Plots that Failed: Intelligence Lessons Learned from Unsuccessful
Terrorist Attacks Against the United States
SO STUDIES IN CONFLICT & TERRORISM
LA English
DT Article
AB While much of the focus of terrorism research is on successful terrorist attacks, the most significant lessons for terrorism prevention may come from examination of terrorist plots and attacks that do not succeed. This article analyzes 176 terrorist plots against American targets that have been thwarted or otherwise failed during the past 25 years. It considers what kinds of intelligence and security measures are most useful in counterterrorism, and argues that the conventional wisdom about why intelligence fails-because analysts and agencies are unable to "connect the dots"-is wrong. Most plots, especially domestic terrorist plots, are not foiled through imaginative analysis, but through conventional law enforcement efforts and aggressive domestic intelligence collection that reveal to authorities just what the plotters are up to.
C1 USN, Natl Secur Affairs Dept, Postgrad Sch, Monterey, CA 93943 USA.
RP Dahl, EJ (reprint author), USN, Natl Secur Affairs Dept, Postgrad Sch, 1411 Cunningham Rd,Bldg 302,Room 319, Monterey, CA 93943 USA.
EM ejdahl@nps.edu
NR 92
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U1 2
U2 15
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1057-610X
J9 STUD CONFL TERROR
JI Stud. Confl. Terror.
PY 2011
VL 34
IS 8
BP 621
EP 648
DI 10.1080/1057610X.2011.582628
PG 28
WC International Relations; Political Science
SC International Relations; Government & Law
GA 887WS
UT WOS:000299963100003
ER
PT J
AU Stevenson, J
AF Stevenson, Jonathan
TI Echoes of Gunfire: bin Laden, the US and the Greater Middle East
SO SURVIVAL
LA English
DT Article
C1 [Stevenson, Jonathan] USN, War Coll, Newport, RI 02841 USA.
RP Stevenson, J (reprint author), USN, War Coll, Newport, RI 02841 USA.
NR 7
TC 1
Z9 1
U1 0
U2 0
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-6338
J9 SURVIVAL
JI Survival
PY 2011
VL 53
IS 3
BP 11
EP 18
AR PII 938096409
DI 10.1080/00396338.2011.586183
PG 8
WC International Relations; Political Science
SC International Relations; Government & Law
GA 772XI
UT WOS:000291271100002
ER
PT J
AU Springborg, R
AF Springborg, Robert
TI The Precarious Economics of Arab Springs
SO SURVIVAL
LA English
DT Article
C1 [Springborg, Robert] USN, Dept Natl Secur Affairs, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
[Springborg, Robert] London Middle E Inst, London, England.
RP Springborg, R (reprint author), USN, Dept Natl Secur Affairs, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
NR 48
TC 4
Z9 4
U1 1
U2 7
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-6338
J9 SURVIVAL
JI Survival
PY 2011
VL 53
IS 6
BP 85
EP 103
DI 10.1080/00396338.2011.636271
PG 19
WC International Relations; Political Science
SC International Relations; Government & Law
GA 880TE
UT WOS:000299429500006
ER
PT J
AU Stevenson, J
AF Stevenson, Jonathan
TI Negotiating With Evil: When to Talk to Terrorists
SO SURVIVAL
LA English
DT Book Review
C1 [Stevenson, Jonathan] USN, War Coll, Newport, RI 02841 USA.
RP Stevenson, J (reprint author), USN, War Coll, Newport, RI 02841 USA.
NR 13
TC 0
Z9 0
U1 1
U2 3
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-6338
EI 1468-2699
J9 SURVIVAL
JI Survival
PY 2011
VL 53
IS 2
BP 167
EP 175
AR PII 935795356
DI 10.1080/00396338.2011.571019
PG 9
WC International Relations; Political Science
SC International Relations; Government & Law
GA 746LY
UT WOS:000289249600013
ER
PT J
AU Knutson, EM
AF Knutson, Elizabeth M.
TI Writing In Between Worlds: Reflections on Language and Identity from
Works by Nancy Huston and Leila Sebbar
SO SYMPOSIUM-A QUARTERLY JOURNAL IN MODERN LITERATURES
LA English
DT Article
DE cultural heterogeneity; exile; identity; language; liminal space;
mobility; writing
ID FRENCH
AB This article analyzes the themes of language, cultural heterogeneity, and writing as liminal space in autobiographical nonfiction texts by Canadian-born bilingual author Nancy Huston and Algerian-born French writer Leila Sebbar. In their coauthored correspondence on the theme of exile, Lettres parisiennes: Autopsie de l'exil, Huston and Sebbar describe writing as a land or territory, a place of one's own, and Sebbar defines exile as the very foundation of her being. Each writer explores the meaning of language in her life (English and French for Huston, French and Arabic for Sebbar), particularly as it relates to childhood and loss. Other themes include the construction and performance of self through language and writing; mobility, even instability, as vital constituents of identity; and exile and difference as freedom. While "exile" for these authors is not a question of forced migration, their reflections on living in between and across cultures-in the fault lines-have rich resonance for theorists, writers, travelers, and users of language in a globalized world.
C1 USN Acad, Annapolis, MD 21402 USA.
RP Knutson, EM (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 25
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U1 1
U2 1
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-7709
J9 SYMPOSIUM
JI Symp.-Q. J. Mod. Lit.
PY 2011
VL 65
IS 4
BP 253
EP 270
DI 10.1080/00397709.2011.628589
PG 18
WC Literature
SC Literature
GA 888JM
UT WOS:000299999800002
ER
PT S
AU Sanghera, J
Kim, W
Villalobos, G
Shaw, B
Baker, C
Frantz, J
Hunt, M
Sadowski, B
Aggarwal, I
AF Sanghera, Jasbinder
Kim, Woohong
Villalobos, Guillermo
Shaw, Brandon
Baker, Colin
Frantz, Jesse
Hunt, Michael
Sadowski, Bryan
Aggarwal, Ishwar
BE Titterton, DH
Richardson, MA
TI Development of Ceramic Laser Host Materials
SO TECHNOLOGIES FOR OPTICAL COUNTERMEASURES VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Technologies for Optical Countermeasures VIII
CY SEP 21-22, 2011
CL Prague, CZECH REPUBLIC
SP SPIE
DE ceramics; laser materials; 100 KW; microchip lasers; ultrashort pulse;
ceramic composites; non-oxide ceramics
ID SOLID-STATE LASERS; PERFORMANCE; GENERATION; EFFICIENCY; CRYSTALS
AB Ceramic laser materials have come a long way since the first demonstration of lasing in 1964. Improvements in powder synthesis and ceramic sintering as well as novel ideas have led to notable achievements. These include the first Nd:YAG ceramic laser in 1995, breaking the 1 KW mark in 2002 and then the remarkable demonstration of more than 100 KW output power from a YAG ceramic laser system in 2009. Additional developments have included highly doped microchip lasers, ultrashort pulse lasers, novel materials such as sesquioxides, fluoride ceramic lasers, selenide ceramic lasers in the 2 to 3 mu m region, composite ceramic lasers for better thermal management, and single crystal lasers derived from polycrystalline ceramics. This paper highlights some of these notable achievements.
C1 [Sanghera, Jasbinder; Kim, Woohong; Villalobos, Guillermo; Shaw, Brandon; Baker, Colin; Frantz, Jesse] USN, Res Lab, Washington, DC 20375 USA.
RP Sanghera, J (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Baker, Colin/I-6657-2015
NR 33
TC 1
Z9 1
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-815-2
J9 PROC SPIE
PY 2011
VL 8187
AR 81870G
DI 10.1117/12.903736
PG 15
WC Optics; Physics, Applied
SC Optics; Physics
GA BXX95
UT WOS:000297571800008
ER
PT S
AU Shyu, H
Taczak, TM
Cox, K
Gover, R
Maraviglia, C
Cahill, C
AF Shyu, Hawjye
Taczak, Thomas M.
Cox, Kevin
Gover, Robert
Maraviglia, Carlos
Cahill, Colin
BE Mobley, SB
Murrer, RL
TI High Fidelity Real-Time Maritime Scene Rendering
SO TECHNOLOGIES FOR SYNTHETIC ENVIRONMENTS: HARDWARE-IN-THE-LOOP XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Technologies for Synthetic Environments -
Hardware-in-the-Loop XVI
CY APR 27-28, 2011
CL Orlando, FL
SP SPIE
DE Synthetic; scene-generator; clutter; real-time; rendering; infrared;
ShipIR
ID CHAMP RTC
AB The ability to simulate authentic engagements using real-world hardware is an increasingly important tool. For rendering maritime environments, scene generators must be capable of rendering radiometrically accurate scenes with correct temporal and spatial characteristics. When the simulation is used as input to real-world hardware or human observers, the scene generator must operate in real-time.
This paper introduces a novel, real-time scene generation capability for rendering radiometrically accurate scenes of backgrounds and targets in maritime environments. The new model is an optimized and parallelized version of the US Navy CRUISE_Missiles rendering engine. It was designed to accept environmental descriptions and engagement geometry data from external sources, render a scene, transform the radiometric scene using the electro-optical response functions of a sensor under test, and output the resulting signal to real-world hardware.
This paper reviews components of the scene rendering algorithm, and details the modifications required to run this code in real-time. A description of the simulation architecture and interfaces to external hardware and models is presented. Performance assessments of the frame rate and radiometric accuracy of the new code are summarized.
This work was completed in FY10 under Office of Secretary of Defense (OSD) Central Test and Evaluation Investment Program (CTEIP) funding and will undergo a validation process in FY11.
C1 [Shyu, Hawjye; Gover, Robert; Maraviglia, Carlos] USN, Res Lab, Washington, DC 20375 USA.
RP Shyu, H (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 7
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-589-2
J9 PROC SPIE
PY 2011
VL 8015
AR 80150H
DI 10.1117/12.884522
PG 11
WC Optics
SC Optics
GA BVT10
UT WOS:000292701200016
ER
PT J
AU Schoeneck, DJ
Porter, AL
Kostoff, RN
Berger, EM
AF Schoeneck, David J.
Porter, Alan L.
Kostoff, Ronald N.
Berger, Elena M.
TI Assessment of Brazil's research literature
SO TECHNOLOGY ANALYSIS & STRATEGIC MANAGEMENT
LA English
DT Article
DE research profiling; Brazil; Brasil; bibliometrics; text mining; tech
mining; R&D trends; competitive technical intelligence
ID SCIENCE-AND-TECHNOLOGY; INFRASTRUCTURE; CHINA; PUBLICATIONS
AB This 'country study' analyses substantial samples of research papers by Brazilian authors drawn from two global databases. The approach and the findings may each be of interest. Our approach is to examine R&D outputs through bibliometrics (to identify key authors, institutions, journals, etc.) and text mining with taxonomy generation (to identify pervasive research thrusts). We extend prior country studies by providing for interactive data access and exploring military-relevant R&D information. The resulting publication activity profiles provide insight on Brazilian R&D strengths and investment strategies, and help identify opportunities for collaboration. Brazil, a nation of 190 million, evidences a substantial research enterprise, with major capabilities in the life and biomedical sciences, as well as the physical sciences. We benchmark research patterns and trends against several other countries. We find a large measure of international collaboration, particularly with the USA.
C1 [Schoeneck, David J.; Porter, Alan L.] Search Technol Inc, Norcross, GA USA.
[Porter, Alan L.; Berger, Elena M.] Georgia Inst Technol, Technol Policy & Assessment Ctr, Atlanta, GA 30332 USA.
[Kostoff, Ronald N.] Off Naval Res, Arlington, VA 22217 USA.
RP Porter, AL (reprint author), Search Technol Inc, Norcross, GA USA.
EM aporter@searchtech.com
RI porter, alan/A-7013-2009
OI porter, alan/0000-0002-4520-6518
NR 31
TC 5
Z9 5
U1 3
U2 24
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0953-7325
J9 TECHNOL ANAL STRATEG
JI Technol. Anal. Strateg. Manage.
PY 2011
VL 23
IS 6
BP 601
EP 621
DI 10.1080/09537325.2011.585029
PG 21
WC Management; Multidisciplinary Sciences
SC Business & Economics; Science & Technology - Other Topics
GA 782AX
UT WOS:000291980900001
ER
PT J
AU Aboul-Enein, Y
AF Aboul-Enein, Youssef
TI Silence is Death: The Life and Work of Tahar Djaout
SO TERRORISM AND POLITICAL VIOLENCE
LA English
DT Book Review
C1 [Aboul-Enein, Youssef] USN, N Potomac, MD USA.
RP Aboul-Enein, Y (reprint author), USN, N Potomac, MD USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0954-6553
J9 TERROR POLIT VIOLENC
JI Terror. Polit. Violence
PY 2011
VL 23
IS 4
BP 679
EP 681
DI 10.1080/09546553.2011.598438
PG 4
WC International Relations; Political Science
SC International Relations; Government & Law
GA 881EZ
UT WOS:000299465500016
ER
PT J
AU Scheck, C
Cheng, C
Tran, K
Zupan, M
AF Scheck, Caroline
Cheng, Christopher
Kim Tran
Zupan, Marc
GP TMS
TI IMPACT OF ULTRASONIC IMPACT TREATMENT ON A 5456 ALUMINUM ALLOY
CHARACTERIZED THROUGH MICRO-SPECIMEN TESTING AND X-RAY TOMOGRAPHY
SO TMS2011 SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS FABRICATION,
PROPERTIES, CHARACTERIZATION, AND MODELING
LA English
DT Proceedings Paper
CT TMS 140th Annual Meeting and Exhibition
CY FEB 27-MAR 03, 2011
CL San Diego, CA
SP TMS
DE Aluminum; Micro-Tensile; Ultrasonic Impact Treatment; microCT
AB Ultrasonic impact treatment (UIT) is a surface treatment that causes severe plastic deformation (SPD). UIT gives excellent parameter control and has a high energy efficiency, unlike similar processes such as shot peening. The objective of this work is to investigate the measured hardness, strength, and void properties of an ultrasonically impacted 5456-J116 aluminum. Micro-indentation is used to map the hardness properties while microsample specimens directly measure tensile mechanical properties. The micro species (3mm in length by 1mm wide with a gage section of 250 mu m(2)) are made at varying distances from the UIT treated surface and tested to characterize the Young's modulus and yield strength. Voids in the gage section of the micro specimens are analyzed before and after testing using novel X-ray tomography. These void characteristics are linked to the yield and plastic deformation behavior of the material.
C1 [Scheck, Caroline; Cheng, Christopher; Zupan, Marc] Univ Maryland Baltimore Cty, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
[Kim Tran] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD 20817 USA.
RP Scheck, C (reprint author), Univ Maryland Baltimore Cty, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
FU NSF [CBET-0821236]
FX This research effort was funded in part through NSF grant number
CBET-0821236.
NR 5
TC 0
Z9 0
U1 0
U2 4
PU JOHN WILEY & SONS
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER, W SUSSEX PO 19 8SQ, ENGLAND
BN 978-1-11802-946-6
PY 2011
BP 205
EP 212
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA BHY36
UT WOS:000327013200026
ER
PT S
AU Armstrong, JT
Mozurkewich, D
Schmitt, HR
Restaino, SR
Hindsley, RB
AF Armstrong, J. T.
Mozurkewich, D.
Schmitt, H. R.
Restaino, S. R.
Hindsley, R. B.
BE Dolne, JJ
Karr, TJ
Gamiz, VL
Rogers, S
Casasent, DP
TI Comparing the sensitivities of intensity interferometry and Michelson
interferometry
SO UNCONVENTIONAL IMAGING, WAVEFRONT SENSING, AND ADAPTIVE CODED APERTURE
IMAGING AND NON-IMAGING SENSOR SYSTEMS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unconventional Imaging, Wavefront Sensing, and Adaptive
Coded Aperture Imaging and Non-Imaging Sensor Systems
CY AUG 21-25, 2011
CL San Diego, CA
SP SPIE
DE optical interferometry; intensity interferometry; Michelson
interferometry
ID LIGHT; FLUCTUATIONS; STARS
AB Intensity interferometry, in which intensity fluctuations at separate apertures are measured and then correlated, is an attractive technique for high angular resolution measurements because of its simplicity. There is no need to transport light beams from the telescopes of the interferometer array to a beam combiner, and the telescope optics need not be precise. Michelson interferometry, in which light beams are brought together and the interference pattern is measured, is significantly more difficult, requiring precision optics and precise pathlength control, but it has a great advantage in sensitivity, requiring milliseconds to make a detection that might require hours with an intensity interferometer. However, for interferometry with a large number of array elements, the sensitivity of Michelson interferometry suffers from the fact that the light beams must be shared among many correlations, thereby reducing the sensitivity of each measurement. We explore these and other influences on the relative sensitivities of these techniques to determine under what circumstances, if any, their sensitivities become comparable.
C1 [Armstrong, J. T.; Hindsley, R. B.] USN, Res Lab, Washington, DC 20375 USA.
RP Armstrong, JT (reprint author), USN, Res Lab, Code 7215,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM tom.armstrong@nrl.navy.mil
NR 10
TC 0
Z9 0
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-775-9
J9 PROC SPIE
PY 2011
VL 8165
AR 81650Z
DI 10.1117/12.894039
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BXZ26
UT WOS:000297677300024
ER
PT S
AU Restaino, SR
Andrews, JR
AF Restaino, S. R.
Andrews, J. R.
BE Dolne, JJ
Karr, TJ
Gamiz, VL
Rogers, S
Casasent, DP
TI Comparison of Michelson Interferometer, Intensity Interferometer and
Filled Aperture Telescope SNR for GEO satellites detection
SO UNCONVENTIONAL IMAGING, WAVEFRONT SENSING, AND ADAPTIVE CODED APERTURE
IMAGING AND NON-IMAGING SENSOR SYSTEMS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Unconventional Imaging, Wavefront Sensing, and Adaptive
Coded Aperture Imaging and Non-Imaging Sensor Systems
CY AUG 21-25, 2011
CL San Diego, CA
SP SPIE
ID PROTOTYPE OPTICAL INTERFEROMETER; LIGHT
AB The observation of satellites at geostationary earth orbits (GEO) from the ground presents some formidable technical and scientific challenges. In recent years, several approaches have been proposed and some have undergone field tests. The Naval Research Laboratory has pioneered the use of the Michelson-style sparse aperture interferometers for this problem by using the Naval Prototype Optical Interferometer (NPOI). Other groups have proposed the use of Intensity Interferometry to solve this problem. It is in this framework that we are addressing the issue of comparing Signal-to-Noise-Ratio (SNR) expressions and numerical simulations for various approaches in order to establish which is the most suitable technique for ground based observations. In this paper we present a comparison of SNR simulations for a Michelson Interferometer, an Intensity Interferometer and a filled aperture telescope. We present the basic background of the two interferometric techniques and the standard SNR expressions for the three approaches. We review the parameters of the simulations discussing the limitations and we will present the results.
C1 [Restaino, S. R.; Andrews, J. R.] USN, Res Lab, Remote Sensing Div, Arlington, VA 22202 USA.
RP Restaino, SR (reprint author), USN, Res Lab, Remote Sensing Div, Arlington, VA 22202 USA.
NR 9
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-775-9
J9 PROC SPIE
PY 2011
VL 8165
AR 81650R
DI 10.1117/12.896622
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BXZ26
UT WOS:000297677300017
ER
PT J
AU Hanafi, HA
Szumlas, DE
Fryauff, DJ
El-Hossary, SS
Singer, GA
Osman, SG
Watany, N
Furman, BD
Hoel, DF
AF Hanafi, Hanafi A.
Szumlas, Daniel E.
Fryauff, David J.
El-Hossary, Shabaan S.
Singer, Gamal A.
Osman, Samir G.
Watany, Noha
Furman, Barry D.
Hoel, David F.
TI Effects of Ivermectin on Blood-Feeding Phlebotomus papatasi, and the
Promastigote Stage of Leishmania major
SO VECTOR-BORNE AND ZOONOTIC DISEASES
LA English
DT Article
DE Ivermectin; Phlebotomus papatasi; Leishmania major
ID VISCERAL LEISHMANIASIS; SAND FLIES; IMPACT; ONCHOCERCIASIS;
TRANSMISSION; AVERMECTINS; INFECTIONS; INSECTICIDE; FILARIASIS; SURVIVAL
AB Ivermectin (IVM) is a chemically modified macrocyclic lactone of Streptomyces avermitilis that acts as a potent neurotoxin against many nematodes and arthropods. Little is known of IVM's effect against either blood-feeding Phlebotomus sand flies, or the infective promastigote stage of Leishmania transmitted by these flies. We injected hamsters subcutaneously with two standard IVM treatments (200 and 400 mu g/kg body weight) and allowed cohorts of Leishmania major-infected Phlebotomus papatasi to blood-feed on these animals at various posttreatment time points (4 h, 1, 2, 6, and 10 days). Infected and uninfected sand flies that bit treated and untreated hamsters served as controls. Serum levels of IVM in low-and high-dose-treated hamsters were determined at the five time points. Sand fly mortality following blood feeding was recorded at 24-h intervals and, in relation to IVM treatment, was time and dose dependent. Mortality was most rapid and greatest among infected flies that fed nearest to time of dosing. Mean survival of infected sand flies after feeding on untreated hamsters was 11.5 days, whereas that of infected sand flies that fed 4 h, 1 day, or 2 days posttreatment on high-dose-treated hamsters (400 mu g/kg) was 1.6, 2.1, and 2.7 days, respectively. Infected and uninfected sand flies that blood fed 6 days following low-dose IVM treatment (200 mu g/kg) still experienced significantly greater mortality (p < 0.02) than controls. Promastigotes dissected out of surviving flies that fed on IVM-treated hamsters showed typical motility and survival. Moreover, 21.7% of IVM-treated hamsters developed lesions after being fed upon by infected sand flies. L. major promastigotes appeared to be tolerant to ng/mL blood levels of IVM that caused significant mortality for up to 10 days posttreatment in blood-feeding P. papatasi.
C1 [Hanafi, Hanafi A.; Szumlas, Daniel E.; Fryauff, David J.; El-Hossary, Shabaan S.; Watany, Noha; Furman, Barry D.; Hoel, David F.] USN, Vector Biol Res Program, Med Res Unit 3, Cairo 11517, Egypt.
[Singer, Gamal A.] Helwan Univ, Fac Sci, Dept Chem, Helwan, Egypt.
[Osman, Samir G.] Egyptian Co Chem & Pharmaceut ADWIA, Dept Res & Dev, Cairo, Egypt.
RP Hanafi, HA (reprint author), USN, Vector Biol Res Program, Med Res Unit 3, 3A Imtidad Ramses St, Cairo 11517, Egypt.
EM hanafi.hanafi.ctr.eg@med.navy.mil
FU Military Infectious Diseases Research Program
[6000-RAD1-U-E0305-U0005-04-N3]
FX The authors thank Fetouh Ali and Ahmed Fawzy of the U.S. Naval Medical
Research Unit No. 3 Vector Biology Research Program for their technical
support, and are also grateful to Ms. Maria Badra for reviewing and
processing this manuscript. This work was supported by the Military
Infectious Diseases Research Program, Work Unit No.
6000-RAD1-U-E0305-U0005-04-N3.
NR 46
TC 3
Z9 4
U1 0
U2 0
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-3667
J9 VECTOR-BORNE ZOONOT
JI Vector-Borne Zoonotic Dis.
PD JAN
PY 2011
VL 11
IS 1
BP 43
EP 52
DI 10.1089/vbz.2009.0030
PG 10
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 711IJ
UT WOS:000286582700008
PM 20518644
ER
PT J
AU Norris, SM
Huss, MT
Palarea, RE
AF Norris, Sarah M.
Huss, Matthew T.
Palarea, Russell E.
TI A Pattern of Violence: Analyzing the Relationship Between Intimate
Partner Violence and Stalking
SO VIOLENCE AND VICTIMS
LA English
DT Article
DE stalking behavior; domestic abuse; domestic violence; batterers;
psychopathology
ID BECK DEPRESSION INVENTORY; DOMESTIC VIOLENCE; PSYCHIATRIC OUTPATIENTS;
RISK-FACTORS; VALIDITY; STALKERS
AB As the literature on stalking has grown, several studies have proposed a relationship between stalking and intimate partner violence (IPV). This study examines a clinical sample of intimate partner batterers to assess the stalking-related behaviors committed against the participants' intimate partners. The study examined the levels of severity between stalking-related behaviors and IPV, as well as identified differences between batterers who exhibited stalking-related behaviors and those who did not. A significant relationship between stalking-related behavior and IPV was found, with more severe stalking related to higher levels of IPV and more extreme psychopathology.
C1 [Huss, Matthew T.] Creighton Univ, Dept Psychol, Omaha, NE 68178 USA.
[Palarea, Russell E.] USN, Criminal Invest Serv, Stennis Space Ctr, MS 39529 USA.
RP Huss, MT (reprint author), Creighton Univ, Dept Psychol, 2500 Calif Plaza, Omaha, NE 68178 USA.
EM mhuss@creighton.edu
FU NIMH NIH HHS [R03 MH058929-01]
NR 40
TC 7
Z9 7
U1 1
U2 19
PU SPRINGER PUBLISHING CO
PI NEW YORK
PA 11 WEST 42ND STREET, NEW YORK, NY 10036 USA
SN 0886-6708
J9 VIOLENCE VICTIMS
JI Violence Vict.
PY 2011
VL 26
IS 1
BP 103
EP 115
DI 10.1891/0886-6708.26.1.103
PG 13
WC Criminology & Penology
SC Criminology & Penology
GA 793KH
UT WOS:000292819900007
PM 21776832
ER
PT S
AU Harris, DC
AF Harris, Daniel C.
BE Tustison, RW
TI History of Magnetorheological Finishing
SO WINDOW AND DOME TECHNOLOGIES AND MATERIALS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Window and Dome Technologies and Materials XII
CY APR 27-28, 2011
CL Orlando, FL
SP SPIE
AB Magnetorheological finishing (MRF) is a deterministic method for producing complex optics with figure accuracy <50 nm and surface roughness <1 nm. MRF was invented at the Luikov Institute of Heat and Mass Transfer in Minsk, Belarus in the late 1980s by a team led by William Kordonski. When the Soviet Union opened up, New York businessman Lowell Mintz was invited to Minsk in 1990 to explore possibilities for technology transfer. Mintz was told of the potential for MRF, but did not understand whether it had value. Mintz was referred to Harvey Pollicove at the Center for Optics Manufacturing of the University of Rochester. As a result of their conversation, they sent Prof. Steve Jacobs to visit Minsk and evaluate MRF. From Jacobs' positive findings, and with support from Lowell Mintz, Kordonski and his colleagues were invited in 1993 to work at the Center for Optics Manufacturing with Jacobs and Don Golini to refine MRF technology. A "preprototype" finishing machine was operating by 1994. Prof. Greg Forbes and doctoral student Paul Dumas developed algorithms for deterministic control of MRF. In 1996, Golini recognized the commercial potential of MRF, secured investment capital from Lowell Mintz, and founded QED Technologies. The first commercial MRF machine was unveiled in 1998. It was followed by more advanced models and by groundbreaking subaperture stitching interferometers for metrology. In 2006, QED was acquired by and became a division of Cabot Microelectronics. This paper recounts the history of the development of MRF and the founding of QED Technologies.
C1 USN, Air Syst Command, China Lake, CA 93555 USA.
RP Harris, DC (reprint author), USN, Air Syst Command, 1900 N Knox Rd,Stop 6303, China Lake, CA 93555 USA.
EM Daniel.Harris@navy.mil
NR 19
TC 7
Z9 7
U1 0
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-590-8
J9 PROC SPIE
PY 2011
VL 8016
AR 80160N
DI 10.1117/12.882557
PG 22
WC Optics; Physics, Condensed Matter
SC Optics; Physics
GA BWW03
UT WOS:000295118800020
ER
PT B
AU Trenchard, M
Lohrenz, M
Gray, T
AF Trenchard, Michael
Lohrenz, Maura
Gray, Tom
BE Baralt, J
Callaos, N
Ham, C
Lace, N
Lesso, W
Zinn, CD
TI Color Compression Optimization Techniques for Localized Aeronautical
Charts
SO WMSCI 2011: 15TH WORLD MULTI-CONFERENCE ON SYSTEMICS, CYBERNETICS AND
INFORMATICS, VOL I
LA English
DT Proceedings Paper
CT 15th World Multi-Conference on Systematics, Cybernetics and Informatics
(WMSCI 2011)
CY JUL 19-22, 2011
CL Orlando, FL
SP Int Inst Informat & Syst
DE color compression; digital mapping; aeronautical charts; CIELAB; color
palette
AB Aeronautical chart data used widely by the U.S. military and its Allies is typically compressed using vector quantization in a multi-stage approach. The first stage is a simple red-green-blue (RGB) 3:1 color compression, which reduces the chart data from 24-bit color to 8-bit color, using a color palette to map the resulting color indices back to 24-bit RGB. For the compressed U.S. military aeronautical charts discussed in this paper, the color palette is limited to 216 indices to accommodate additional colors for mission-specific overlays. Reducing color from 24-bit to 8-bit is a "lossy" compression technique, since there is potential for color data loss. Optimizing the selection of a color palette to best represent a given set of aeronautical charts is key to minimizing color loss during compression. This paper evaluates two color palette selection techniques and their associated color compression schemes, and compares each with two different color spaces, to determine which combination of techniques will result in the least amount of color loss. The first technique selects the most prevalent 216 color values in a given set of charts as the color palette, and then color-clusters the remaining colors to their closest color palette value by Euclidean distance in the chosen color space. The second technique progressively increases Euclidean distances to generate 216 color clusters and selects the weighted centroid value of each color cluster to produce the color palette. The color palette selection techniques are performed both in RGB (red-green-blue) color space and the Commission Internationale de l'Eclairage (CIE) L*a*b* (CIELAB) color space. CIELAB color space is designed to be perceptually uniform, meaning that a change of the same amount in color value should produce a change of about the same visual importance. A high color variability aeronautical chart is used to evaluate each technique in terms of average distortion per pixel between the color compressed image and its source. Visual color loss is expected to be reduced by performing color clustering and color matching calculations in CIELAB color space.
C1 [Trenchard, Michael; Lohrenz, Maura] Naval Res Lab, Geospatial Sci & Technol Branch, Stennis Space Ctr, MS 39529 USA.
[Gray, Tom] QinetiQ North Amer, Technol Solut Grp, Stennis Space Ctr, MS 39529 USA.
FU NRL 6.2 Base Program [602435N]
FX This research was funded by Program Element 602435N by the NRL 6.2 Base
Program. The authors wish to thank Dr. Fred Petry, Mr. Alfredo Fajardo,
and Ms. Maivan Ly for their guidance and support of the investigation of
this research and the transition of this research to mission planning
applications.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-29-0
PY 2011
BP 293
EP 298
PG 6
WC Computer Science, Cybernetics; Computer Science, Information Systems;
Computer Science, Theory & Methods
SC Computer Science
GA BG8OX
UT WOS:000392561800053
ER
PT J
AU Deuster, PA
Powell-Dunford, N
Crago, MS
Cuda, AS
AF Deuster, Patricia A.
Powell-Dunford, Nicole
Crago, Mark S.
Cuda, Amanda S.
TI Menstrual and Oral Contraceptive Use Patterns Among Deployed Military
Women by Race and Ethnicity
SO WOMEN & HEALTH
LA English
DT Article
DE dysmenorrhea; breast tenderness; health care; missed work; oral
contraceptive agents; race; ethnicity
ID POSTMENARCHEAL PERIOD; PREMENSTRUAL SYMPTOMS; PREVALENCE; DYSMENORRHEA;
CYCLE; POPULATION; AMENORRHEA; PERFORMANCE; STRESS; HEALTH
AB Menstrual cycle patterns and concerns and oral contraceptive use in the combat environment were examined in Caucasian, Asian, Hispanic, and African American women to guide the development of educational resources for women soldiers. An anonymous, questionnaire was completed by 455 U.S. Army womenCaucasian (CA: n = 141); Asian (AS: n = 67); Hispanic (HIS: n = 67); and African American (AA: n = 184) to compare menstrual patterns and concerns, dysmenorrhea, and oral contraceptive patterns. Total menstrual concerns were significantly lower among African Americans relative to Caucasians, Asians, or Hispanics; Asians and Hispanics reported the greatest concern. Overall, secondary amenorrhea was noted by 14.9% of women. Severe dysmenorrhea rates were significantly lower in African American (6.1%) compared to Caucasian (11.6%), Asian (20.9%) and Hispanic (19.7%) women. Asian women reported missing less workonly 9.3% with moderate to severe dysmenorrhea missed work compared to 25.1% of all other women. Only 9.2% of women with mild, compared to 25.8% with moderate to severe (OR = 3.44; p 0.0001) dysmenorrhea sought health care. Less than 50% of women took oral contraceptive, and less than half of those women took oral contraceptive continuously. African Americans seemed to experience menstruation as less bothersome than others, despite no difference in the proportion with menstrual irregularities, mean duration of menses, and/or mean time between cycles.
C1 [Deuster, Patricia A.] Uniformed Serv Univ Hlth Sci, Dept Mil & Emergency Med, Bethesda, MD 20814 USA.
[Powell-Dunford, Nicole] USN, Operat Med Inst, Pensacola, FL USA.
[Crago, Mark S.] Womac Army Med Ctr, Dept Family Med, Fayetteville, NC USA.
[Cuda, Amanda S.] Tripler Army Med Ctr, Dept Family Med, Honolulu, HI 96859 USA.
RP Deuster, PA (reprint author), Uniformed Serv Univ Hlth Sci, Dept Mil & Emergency Med, 4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM pdeuster@usuhs.mil
RI Deuster, Patricia/G-3838-2015
OI Deuster, Patricia/0000-0002-7895-0888
NR 29
TC 2
Z9 2
U1 0
U2 1
PU HAWORTH PRESS INC
PI BINGHAMTON
PA 10 ALICE ST, BINGHAMTON, NY 13904-1580 USA
SN 0363-0242
J9 WOMEN HEALTH
JI Women Health
PY 2011
VL 51
IS 1
BP 41
EP 54
AR PII 934591987
DI 10.1080/03630242.2011.540742
PG 14
WC Public, Environmental & Occupational Health; Women's Studies
SC Public, Environmental & Occupational Health; Women's Studies
GA 733SA
UT WOS:000288281900003
PM 21391160
ER
PT J
AU McCartt, AD
Gates, SD
Jeffries, JB
Hanson, RK
Joubert, LM
Buhr, TL
AF McCartt, A. Daniel
Gates, Sean D.
Jeffries, Jay B.
Hanson, Ronald K.
Joubert, Lydia M.
Buhr, Tony L.
TI Response of Bacillus thuringiensis Al Hakam Endospores to Gas Dynamic
Heating in a Shock Tube
SO ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH
IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
LA English
DT Article
DE Bacillus Endospores; Flow Cytometry; Shock Wave Heat Resistance; Laser
Diagnostics; Scanning Electron Microscopy
ID SURFACE HYDROPHOBICITY; CEREUS SPORES; RESISTANCE; ANTHRACIS; ADHESION;
SUBTILIS; SEQUENCE
AB Experiments were conducted in a gas-driven shock tube to investigate shock wave-induced damage to Bacillus thuringiensis Al Hakam endospores over a wide range of post-shock temperatures in non-oxidative gas environments. The results were compared with previous studies on B. atrophaeus and B. subtilis and demonstrate that B. thuringiensis Al Hakam exhibited a qualitatively similar response to rapid shock heating, even though this strain has a significantly different endospore structure. B. thuringiensis Al Hakam endospores were nebulized into an aqueous aerosol, which was loaded into the Stanford aerosol shock tube, and subjected to shock waves of controlled strength. Endospores experienced uniform test temperatures between 500 and 1000 K and pressures ranging from 2 atm to 7 atm for approximately 2.5 ms. During this process the bio-aerosol was monitored using in situ time-resolved laser absorption and scattering diagnostics. Additionally, shock-treated bio-aerosol samples were extracted for ex situ analysis including viability plating, flow cytometry and scanning electron microscopy (SEM) imaging. B. thuringiensis Al Hakam endospores lost the ability to form colonies at post-shock temperatures above 500 K while significant breakdown in morphology was observed only for post-shock temperatures above 700 K. While viability loss and endospore morphological deterioration adhere to a similar framework across all endospore species studied, phenomena unique to B. thuringiensis Al Hakam were noted in the SEM images and optical extinction data. This initial characterization of the response of B. thuringiensis Al Hakam spores treated with shock/blast waves shows that these methods have potential for spore inactivation and detection.
C1 [McCartt, A. Daniel; Gates, Sean D.; Jeffries, Jay B.; Hanson, Ronald K.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA.
[Joubert, Lydia M.] Stanford Univ, Stanford Med Sch, Stanford, CA 94305 USA.
[Buhr, Tony L.] USN, Surface Warfare Ctr Dahlgren, Dahlgren, VA 22448 USA.
RP McCartt, AD (reprint author), Stanford Univ, Dept Mech Engn, Bldg 520,452 Escondido Mall, Stanford, CA 94305 USA.
EM mccartt@stanford.edu
FU Defense Threat Reduction Agency [AB07TAS014]; Chemical Sciences Division
[51532CHCBB]
FX We celebrate the birthday of Professor Dr. Kohse-Hoinghaus. Like many
examples of her research, the work here applies physical chemistry tools
and laser diagnostics to solve problems in other disciplines. This work
was supported by the Defense Threat Reduction Agency via grant
AB07TAS014, administered by the Army Research Office under grant
51532CHCBB with Dr. Jennifer Becker of the Chemical Sciences Division as
contract monitor. Alice Young and Zachary Minter at Naval Surface
Warfare Center-Dahlgren provided technical assistance with the spore
preparation.
NR 26
TC 6
Z9 6
U1 2
U2 6
PU OLDENBOURG VERLAG
PI MUNICH
PA LEKTORAT MINT, POSTFACH 80 13 60, D-81613 MUNICH, GERMANY
SN 0942-9352
J9 Z PHYS CHEM
JI Z. Phys. Chemie-Int. J. Res. Phys. Chem. Chem. Phys.
PY 2011
VL 225
IS 11-12
SI SI
BP 1367
EP 1377
DI 10.1524/zpch.2011.0183
PG 11
WC Chemistry, Physical
SC Chemistry
GA 880GQ
UT WOS:000299393700012
ER
PT J
AU Lebedev, N
Griva, I
Kedziora, GS
Blom, A
Schnur, JM
AF Lebedev, Nikolai
Griva, Igor
Kedziora, Gary S.
Blom, Anders
Schnur, Joel M.
TI The Effect of Water on Electron Transfer through Conductive
Oligo(phenylene vinylene) Quinones
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID MOLECULAR CONDUCTANCE; SURFACES; TRANSPORT
AB Electron transfer (ET) through oxidized (QOPV) and reduced-protonated (HQOPV) forms of oligo(phenylene vinylene) quinone placed between two gold electrodes in the absence and presence of external water molecules is calculated using density functional theory with a nonequilibrium Green's function method. The results show that the presence of hydrogen atoms as an internal component (in reduced-protonated form of the molecule) screens the stimulating effect of oxygen on QOPV conductivity and eliminates the efficiency of the molecule conductance at low bias voltages. The formation of a complex with water restores the HQOPV conductivity at low biases and opens several additional strong conductivity channels below the Fermi level, substantially improving the efficiency of ET between QOPV and the electrode, especially at longer distances between the molecule and the metal. This effect of water can be utilized in the construction of novel highly efficient electrochemically gated electronic devices. It also opens a possibility for the fine regulation of direction of ET in "soft" molecular electronic devices with flexible organization and in biological systems.
C1 [Lebedev, Nikolai] USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20375 USA.
[Griva, Igor] George Mason Univ, Dept Math & Computat, Fairfax, VA 22030 USA.
[Griva, Igor] George Mason Univ, Dept Data Sci, Fairfax, VA 22030 USA.
[Kedziora, Gary S.] High Performance Technol, Wright Patterson AFB, OH 45433 USA.
[Blom, Anders] QuantumWise AS, DK-2100 Copenhagen, Denmark.
[Schnur, Joel M.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP Lebedev, N (reprint author), USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20375 USA.
EM nikolai.lebedev@nrl.navy.mil
FU Air Force Office of Scientific Research; Naval Research Laboratory
FX This work was supported in part by the Air Force Office of Scientific
Research and Naval Research Laboratory base programs.
NR 25
TC 3
Z9 3
U1 3
U2 14
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 DEC 30
PY 2010
VL 114
IS 51
BP 22710
EP 22717
DI 10.1021/jp108868z
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 696NB
UT WOS:000285447000049
ER
PT J
AU Montazami, R
Jain, V
Heflin, JR
AF Montazami, Reza
Jain, Vaibhav
Heflin, James R.
TI High contrast asymmetric solid state electrochromic devices based on
layer-by-layer deposition of polyaniline and poly(aniline sulfonic acid)
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Polyaniline; Electrochromic; Ionic self-assembled multilayer;
Layer-by-layer
ID THIN-FILMS; POLYMER-FILMS; MULTILAYERS; NANOASSEMBLIES; DERIVATIVES;
COLORATION
AB Layer-by-layer (LbL) self-assembly was employed for alternating deposition of two electrochromic polymers to fabricate a single film composite. We report a wide spectral range, high contrast asymmetric solid state electrochromic device, fabricated by LbL assembly of the polycation polyaniline (emeraldine base) (PANI) and the polyanion poly(aniline sulfonic acid), (PASA). Detailed spectral and electrochemical investigation of the dual electrochrome thin film confirm that both electrochromic polymers contribute to the electrochromic and electrochemical characteristics of the composite. Under the application of +/-2.3 V potential the system exhibited an average contrast of 49.7% across the full visible spectrum. The dual electrochrome system was compared to single electrochrome systems, and it was observed that PANI predominantly affects the electrochromic optical spectra of the composite, whereas PASA increases the switching speed. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Montazami, Reza] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
[Jain, Vaibhav] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Heflin, James R.] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
RP Montazami, R (reprint author), Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
EM rezam@vt.edu
RI Montazami, Reza/A-6115-2012
NR 30
TC 25
Z9 25
U1 4
U2 44
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-4686
J9 ELECTROCHIM ACTA
JI Electrochim. Acta
PD DEC 30
PY 2010
VL 56
IS 2
BP 990
EP 994
DI 10.1016/j.electacta.2010.09.049
PG 5
WC Electrochemistry
SC Electrochemistry
GA 692TL
UT WOS:000285177900050
ER
PT J
AU Huang, LL
Massa, L
AF Huang, Lulu
Massa, Lou
TI The kernel energy method Construction of 3- and 4-tuple kernels from a
list of double kernel interactions
SO JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
LA English
DT Article
DE Quantum calculation; KEM; Biological molecules; Interaction energies;
Insulin
ID MOLECULAR TAILORING APPROACH; FRAGMENT-BASED APPROACH; QUANTUM
CRYSTALLOGRAPHY; ORBITAL METHOD; COMPUTATIONAL CHEMISTRY; ELONGATION
METHOD; ADMA APPROACH; MACROMOLECULES
AB The kernel energy method (KEM) provides a way to calculate the ab moo energy of very large biological molecules The results are accurate and the computational time reduced However by use of a list of double kernel interactions a significant additional reduction of computational effort may be achieved still retaining ab moo accuracy A numerical comparison of the indices that name the known double interactions in question allow one to list higher order interactions having the property of topological continuity within the full molecule of interest When that list of interactions is unpacked as a kernel expansion which weights the relative importance of each kernel in an expression for the total molecular energy high accuracy and a further significant reduction in computational effort results A KEM molecular energy calculation based upon the HF/STO3G chemical model is applied to the protein insulin as an illustration (C) 2010 Elsevier B V All rights reserved
C1 [Massa, Lou] CUNY, Hunter Coll, New York, NY 10065 USA.
[Massa, Lou] CUNY, Grad Sch, New York, NY 10065 USA.
[Huang, Lulu] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Massa, L (reprint author), CUNY, Hunter Coll, 695 Pk Ave, New York, NY 10065 USA.
FU Office of Naval Research; NIH, National Center For Research Resources
[S06GM606654, RR-03037]
FX The research reported in this article was supported by the Office of
Naval Research One of us (L M) wishes to thank the U S Navy Summer
Faculty Research Program administered by the American Society of
Engineering Education for the opportunity to spend summers at NRL (L M)
thanks NIH for grants (NIGMS MBRS SCORE5 S06GM606654 and RR-03037 the
National Center For Research Resources) We thank a referee for
insightful suggestions which have improved our manuscript
NR 39
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0166-1280
J9 J MOL STRUC-THEOCHEM
JI Theochem-J. Mol. Struct.
PD DEC 30
PY 2010
VL 962
IS 1-3
BP 72
EP 79
DI 10.1016/j.theochem.2010.09.017
PG 8
WC Chemistry, Physical
SC Chemistry
GA 696KK
UT WOS:000285440100011
ER
PT J
AU Carstairs, SD
Schneir, AB
AF Carstairs, Shaun D.
Schneir, Aaron B.
TI Opsoclonus Due to Diphenhydramine Poisoning.
SO NEW ENGLAND JOURNAL OF MEDICINE
LA English
DT Editorial Material
C1 [Carstairs, Shaun D.] USN, Med Ctr, San Diego, CA 92152 USA.
[Schneir, Aaron B.] Univ Calif San Diego, Ctr Med, San Diego, CA 92103 USA.
RP Carstairs, SD (reprint author), USN, Med Ctr, San Diego, CA 92152 USA.
EM shaunc@yahoo.com
OI Carstairs, Shaun/0000-0003-4558-9704
NR 0
TC 1
Z9 1
U1 0
U2 0
PU MASSACHUSETTS MEDICAL SOC
PI WALTHAM
PA WALTHAM WOODS CENTER, 860 WINTER ST,, WALTHAM, MA 02451-1413 USA
SN 0028-4793
J9 NEW ENGL J MED
JI N. Engl. J. Med.
PD DEC 30
PY 2010
VL 363
IS 27
BP E40
EP E40
DI 10.1056/NEJMicm1002035
PG 1
WC Medicine, General & Internal
SC General & Internal Medicine
GA 700SD
UT WOS:000285763700011
PM 21190451
ER
PT J
AU Ryan, JP
Fischer, AM
Kudela, RM
McManus, MA
Myers, JS
Paduan, JD
Ruhsam, CM
Woodson, CB
Zhang, Y
AF Ryan, J. P.
Fischer, A. M.
Kudela, R. M.
McManus, M. A.
Myers, J. S.
Paduan, J. D.
Ruhsam, C. M.
Woodson, C. B.
Zhang, Y.
TI Recurrent frontal slicks of a coastal ocean upwelling shadow
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID NORTHERN MONTEREY BAY; DIFFERENT WATER-MASSES; MID-ATLANTIC BIGHT;
LA-PLATA ESTUARY; GEORGES BANK; THIN-LAYERS; RED TIDE; SURFACE
CIRCULATION; SOUTHERN FLANK; FISH LARVAE
AB Marine ecosystems are greatly influenced by the structure and dynamics of fronts. In coastal upwelling systems, frontogenesis occurs frequently by upwelling and transport of cold water and warming in sheltered "upwelling shadow" retention sites. Monterey Bay, in the California Current upwelling system, hosts a dynamic upwelling shadow environment. Using a decade of satellite synthetic aperture radar (SAR) observations with ancillary remote sensing and in situ data, we describe recurrent surface slicks that develop along the seaward periphery of the Monterey Bay upwelling shadow, and we examine their relationships with fronts. Slick median dimensions, 17.5 km long and 0.8 km wide, describe their elongated structure. Although the typical pattern is a single slick, multiple slicks may concurrently develop in association with different types of fronts. Repeated volume surveys through a front, underlying a slick, revealed lateral mixing and interleaving of regional water types. Velocity fields from coastal HF radar show that slicks may coincide with a variety of surface circulation patterns, that they may extend contiguously across regions having very different surface velocity, and that they may be separated from the shear front of upwelling filaments by 5-10 km. Slicks occur in all seasons and may coincide with both upwelling and downwelling wind forcing. Surfactant accumulation in small-scale convergence zones is indicated as the primary mechanism of slick formation, not ocean current shear or small-scale air-sea coupling. The results of this study emphasize the role of upwelling system fronts in creating small-scale structure and dynamics that influence plankton ecology.
C1 [Ryan, J. P.; Fischer, A. M.; Zhang, Y.] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95062 USA.
[Fischer, A. M.] Univ Tasmania, Natl Ctr Marine Conservat & Resource Sustainabil, Launceston, Tas 7250, Australia.
[Kudela, R. M.; Ruhsam, C. M.] Univ Calif Santa Cruz, Ocean Sci Dept, Santa Cruz, CA 95064 USA.
[McManus, M. A.] Univ Hawaii Manoa, Dept Oceanog, Honolulu, HI 96822 USA.
[Myers, J. S.] Univ Calif Santa Cruz, Univ Affiliated Res Ctr, Moffett Field, CA 94035 USA.
[Paduan, J. D.] USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Woodson, C. B.] Stanford Univ, Dept Civil & Environm Engn, Environm Fluid Mech Lab, Stanford, CA 95039 USA.
RP Ryan, JP (reprint author), Monterey Bay Aquarium Res Inst, 7700 Sandholdt Rd, Moss Landing, CA 95062 USA.
EM ryjo@mbari.org
OI Fischer, Andrew/0000-0001-5284-6428
FU David and Lucile Packard Foundation
FX This research was supported by the David and Lucile Packard Foundation.
We thank the Canadian Space Agency (CSA) and NASA for providing
RADARSAT-1 images through cooperative agreement. The acquisition and
processing of SAR images were made possible by the Alaska Satellite
Facility (ASF) and the developers of ASF's Map-Ready software. All AVHRR
SST images were provided through the NOAA CoastWatch program, and AVHRR
data processing was supported by the Central and Northern California
Ocean Observing System (CeNCOOS) program. HF radar data was supported by
the State of California's Coastal Ocean Currents Monitoring Program
(COCMP). We thank the MODIS Airborne Simulator (MAS) team for
acquisition of the MAS image presented in Figure 15b. Thermistor string
and ADCP data for slick case studies were provided by the Partnership
for Interdisciplinary Studies of the Coastal Ocean (PISCO) program. The
wind data for Long Marine Laboratory were provided by R. Franks of the
University of California, Santa Cruz.
NR 78
TC 17
Z9 17
U1 1
U2 18
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD DEC 29
PY 2010
VL 115
AR C12070
DI 10.1029/2010JC006398
PG 15
WC Oceanography
SC Oceanography
GA 701PT
UT WOS:000285835000003
ER
PT J
AU Walker, KT
Hedlin, MAH
de Groot-Hedlin, C
Vergoz, J
Le Pichon, A
Drob, DP
AF Walker, Kristoffer T.
Hedlin, Michael A. H.
de Groot-Hedlin, Catherine
Vergoz, Julien
Le Pichon, Alexis
Drob, Douglas P.
TI Source location of the 19 February 2008 Oregon bolide using seismic
networks and infrasound arrays
SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
LA English
DT Article
ID SOURCE-SCANNING ALGORITHM; SHOCK-WAVE; GLACIAL EARTHQUAKES;
ACOUSTIC-SIGNALS; LOWER ATMOSPHERE; RUPTURE PLANE; MIGRATION; MODEL;
PROPAGATION; FREQUENCY
AB On 19 February 2008 a bolide traveled across the sky along a southern trajectory ending in a terminal burst above Oregon. The event was well recorded by the USArray, other seismic networks, four infrasound arrays, and several video cameras. We compare the results of locating the burst using these different sensor networks. Specifically, we reverse time migrate acoustic-to-seismic coupled signals recorded by the USArray out to 800 km range to image the source in 2-D space and time. We also apply a grid search over source altitude and time, minimizing the misfit between observed and predicted arrival times using 3-D ray tracing with a high-resolution atmospheric velocity model. Our seismic and video results suggest a point source rather than a line source associated with a hypersonic trajectory. We compare the seismic source locations to those obtained by using different combinations of observed infrasound array signal back azimuths and arrival times. We find that all locations are consistent. However, the seismic location is more accurate than the infrasound locations due to the larger number of seismic sensors, a more favorable seismic source-receiver geometry, and shorter ranges to the seismometers. For the infrasound array locations, correcting for the wind improved the accuracy, but implementing arrival times while increasing the precision reduced the accuracy presumably due to limitations of the source location method and/or atmospheric velocity model. We show that despite known complexities associated with acoustic-to-seismic coupling, aboveground infrasound sources can be located with dense seismic networks with remarkably high accuracy and precision.
C1 [Walker, Kristoffer T.; Hedlin, Michael A. H.; de Groot-Hedlin, Catherine] Univ Calif San Diego, Scripps Inst Oceanog, Inst Geophys & Planetary Phys, Lab Atmospher Acoust, La Jolla, CA 92093 USA.
[Vergoz, Julien; Le Pichon, Alexis] CEA DAM DIF, F-91297 Arpajon, France.
[Drob, Douglas P.] USN, Res Lab, Upper Atmospher Modeling Sect, Washington, DC 20375 USA.
RP Walker, KT (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, Inst Geophys & Planetary Phys, Lab Atmospher Acoust, 9500 Gilman Dr, La Jolla, CA 92093 USA.
EM walker@ucsd.edu
RI de Groot-Hedlin, Catherine/A-4919-2013; Drob, Douglas/G-4061-2014
OI de Groot-Hedlin, Catherine/0000-0002-3063-2805; Drob,
Douglas/0000-0002-2045-7740
FU IRIS, the Incorporated Research Institutions for Seismology
FX This study has would not have been possible without generous
contributions from a large group of people. Boulder Real Time
Technologies provided waveform plotting and data manipulation software.
Frank Vernon provided access to the USArray seismic waveform database
and assisted with questions regarding Antelope software. Matt Fouch
(University of Arizona) and David James (Carnegie Institution of
Washington) permitted access to waveforms from their High Lava Plains
Seismic Experiment. Gene Humphries (University of Oregon) provided
waveforms from the Wallowa Flexible Array Experiment. The public affairs
office at Gowen Field in Boise, Idaho provided information on the
location of the security camera that clearly recorded the bolide entry
and terminal burst. Paula Negele and Renee King of the Providence
Portland Medical Center and Rob van Anrooy of the Valley Hospital
Medical Center in Spokane, WA provided images and GPS coordinates from
their security cameras. Jeffrey Brower supplied the light amplitude
curve from his all-sky camera in West Kelowna, B.C. and a measurement of
the azimuth to the terminal burst. Alan Hildebrand, of the University of
Calgary, and Don Hladiuk made available the Calgary all-sky video and
terminal burst time. The ECMWF model was supplied by the Provisional
Technical Secretariat of the CTBTO solely for the purpose of CTBT and
related scientific and technical activities. Robert Lunsford of the
American Meteor Society provided a quantitative summary of human reports
of the meteor. We would like to acknowledge the support of IRIS, the
Incorporated Research Institutions for Seismology, for collecting and
giving access to seismic data from the USArray and regional PASSCAL
experiments. Last, two anonymous reviewers made thoughtful suggestions
that improved this paper.
NR 89
TC 19
Z9 19
U1 0
U2 7
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 DEC 29
PY 2010
VL 115
AR B12329
DI 10.1029/2010JB007863
PG 17
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 701PY
UT WOS:000285835500006
ER
PT J
AU Boeneman, K
Prasuhn, DE
Blanco-Canosa, JB
Dawson, PE
Melinger, JS
Ancona, M
Stewart, MH
Susumu, K
Huston, A
Medintz, IL
AF Boeneman, Kelly
Prasuhn, Duane E.
Blanco-Canosa, Juan B.
Dawson, Philip E.
Melinger, Joseph S.
Ancona, Mario
Stewart, Michael H.
Susumu, Kimihiro
Huston, Alan
Medintz, Igor L.
TI Self-Assembled Quantum Dot-Sensitized Multivalent DNA Photonic Wires
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; SEMICONDUCTOR; NANOCRYSTALS; PROTEINS;
STABILITY; LIGHT; BIOMOLECULES; PROGRESS; LIGANDS; PRIMERS
AB Combining the inherent scaffolding provided by DNA structure with spatial control over fluorophore positioning allows the creation of DNA-based photonic wires with the capacity to transfer excitation energy over distances greater than 150 A. We demonstrate hybrid multifluorophore DNA-photonic wires that both self-assemble around semiconductor quantum dots (QDs) and exploit their unique photophysical properties. In this architecture, the QDs function as both central nanoscaffolds and ultraviolet energy harvesting donors that drive Forster resonance energy transfer (FRET) cascades through the DNA wires with emissions that approach the near-infrared. To assemble the wires, DNA fragments labeled with a series of increasingly red-shifted acceptor-dyes were hybridized in a predetermined linear arrangement to a complementary DNA template that was chemoselectively modified with a hexahistidine-appended peptide. The peptide portion facilitated metal-affinity coordination of multiple hybridized DNA-dye structures to a central OD completing the final nanocrystal-DNA photonic wire structure. We assembled several such hybrid structures where labeled-acceptor dyes were excited by the QDs and arranged to interact with each other via consecutive FRET processes. The inherently facile reconfiguration properties of this design allowed testing of alternate formats including the addition of an intercalating dye located in the template DNA or placement of multiple identical dye acceptors that engaged in homoFRET. Lastly, a photonic structure linking the central QD with multiple copies of DNA hybridized with 4-sequentially arranged acceptor dyes and demonstrating 4-consecutive energy transfer steps was examined. Step-by-step monitoring of energy transfer with both steady-state and time-resolved spectroscopy allowed efficiencies to be tracked through the structures and suggested that acceptor dye quantum yields are the predominant limiting factor. Integrating such DNA-based photonic structures with QDs can help create a new generation of biophotonic wire assemblies with widespread potential in nanotechnology.
C1 [Boeneman, Kelly; Prasuhn, Duane E.; Medintz, Igor L.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Stewart, Michael H.; Susumu, Kimihiro; Huston, Alan] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Melinger, Joseph S.; Ancona, Mario] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
RP Medintz, IL (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM Igor.medintz@nrl.navy.mil
RI Gemmill, Kelly/G-2167-2012
FU CB Directorate/Physical S&T Division (DTRA); ONR; NRL; NRL-NSI; ASEE
through NRL
FX The authors acknowledge the CB Directorate/Physical S&T Division (DTRA),
ONR, NRL and the NRL-NSI for financial support. K.B. and D.E.P.
acknowledge ASEE fellowships through NRL. J.B.B.-C acknowledges a Marie
Curie IOF.
NR 56
TC 74
Z9 74
U1 5
U2 91
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 DEC 29
PY 2010
VL 132
IS 51
BP 18177
EP 18190
DI 10.1021/ja106465x
PG 14
WC Chemistry, Multidisciplinary
SC Chemistry
GA 701LF
UT WOS:000285818700036
PM 21141858
ER
PT J
AU Razzaque, S
Jean, P
Mena, O
AF Razzaque, Soebur
Jean, Pierre
Mena, Olga
TI High energy neutrinos from novae in symbiotic binaries: The case of V407
Cygni
SO PHYSICAL REVIEW D
LA English
DT Article
ID RESOLUTION LINE-PROFILES; GAMMA-RAY EMISSION; STARS; SPECTROSCOPY;
SPECTRA; OBJECTS; ATLAS
AB Detection of high-energy (>= 100 MeV) gamma rays by the Fermi Large Area Telescope from a nova in the symbiotic binary system V407 Cygni has opened the possibility of high-energy neutrino detection from this type of source. A thermonuclear explosion on the white dwarf surface sets off a nova shell in motion that expands and slows down in a dense surrounding medium provided by the red giant companion. Particles are accelerated in the shocks of the shell and interact with the surrounding medium to produce observed gamma rays. We show that proton-proton interaction, which is most likely responsible for producing gamma rays via neutral pion decay, produces >= 0:1 GeV neutrinos that can be detected by the current and future experiments at >= 10 GeV.
C1 [Razzaque, Soebur] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Jean, Pierre] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Mena, Olga] CSIC, IFIC, Inst Fis Corpuscular, Madrid, Spain.
[Mena, Olga] Univ Valencia, E-46003 Valencia, Spain.
RP Razzaque, S (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM srazzaque@ssd5.nrl.navy.mil
FU NASA
FX We thank C. C. Cheung, C. D. Dermer, A. Yu. Smirnov, C. Spiering, and K.
S. Wood for helpful comments and discussion. The work of S. R. was
supported in part by the Fermi Cycle II Guest Investigator Program by
NASA.
NR 28
TC 8
Z9 8
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
J9 PHYS REV D
JI Phys. Rev. D
PD DEC 28
PY 2010
VL 82
IS 12
AR 123012
DI 10.1103/PhysRevD.82.123012
PG 5
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 713OW
UT WOS:000286748300002
ER
PT J
AU Zu, LJ
Wills, AW
Kennedy, TA
Glaser, ER
Norris, DJ
AF Zu, Lijun
Wills, Andrew W.
Kennedy, Thomas A.
Glaser, Evan R.
Norris, David J.
TI Effect of Different Manganese Precursors on the Doping Efficiency in
ZnSe Nanocrystals
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID CDS/ZNS CORE/SHELL NANOCRYSTALS; LUMINESCENCE QUANTUM EFFICIENCY;
SEMICONDUCTOR NANOCRYSTALS; DOPED ZNS; ORGANOMETALLIC SYNTHESIS; DOTS;
MN; PHOTOLUMINESCENCE; SPINTRONICS; ZNSMN2+
AB We prepare ZnSe nanocrystals in the presence of several different Mn precursors to investigate the incorporation of Mn as an intentional impurity. Four different Mn sources, including dimethylmanganese, tricarbonyl methylcyclopentadienylmanganese, Mn(II) cyclohexanebutyrate, and Mn(2)(mu-SeMe)(2)(CO)(8) are tested in a standard hot-injection organometallic synthesis. The resulting ZnSe nanocrystals can exhibit two optical emission peaks: one related to the incorporation of Mn at around 585 nm and one due to electron-hole recombination in the nanocrystal at around 400 nm. We use the photoluminescence intensity ratio of these two peaks to extract information about the doping efficiency. These results are further verified with inductively coupled plasma atomic emission spectroscopy (ICP) and electron paramagnetic resonance (EPR) spectroscopy. Among the four Mn sources, dimethylmanganese leads to the highest doping efficiency, tricarbonyl methylcyclopentadienymanganese and Mn(2)(mu-SeMe)(2)(CO)(8) lead to poor incorporation, and Mn(II) cyclohexanebutyrate leads to weak incorporation of Mn that appears to be mostly at or near the nanocrystal surface.
C1 [Kennedy, Thomas A.; Glaser, Evan R.] USN, Res Lab, Washington, DC 20375 USA.
[Zu, Lijun; Wills, Andrew W.; Norris, David J.] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA.
RP Norris, DJ (reprint author), ETH, CH-8092 Zurich, Switzerland.
EM dnorris@ethz.ch
RI Norris, David/F-4022-2010
FU National Science Foundation (NSF); NSF MRSEC [DMR-0819885]; NSF
Materials World Network [DMR-0908629]; NSF through the MRSEC; ERC; MRI
programs; Office of Naval Research; [CTS-0332484]
FX This work was primarily supported by the National Science Foundation
(NSF). L.Z. received funding under award no. CTS-0332484. A.W.W. was
supported under the NSF MRSEC Program under DMR-0819885 and the NSF
Materials World Network under DMR-0908629. This work also utilized the
Characterization Facility at the University of Minnesota, which has
received capital equipment funding from the NSF through the MRSEC, ERC,
and MRI programs. T.A.K. and E.G. received funding from the Office of
Naval Research.
NR 48
TC 23
Z9 23
U1 1
U2 38
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 DEC 23
PY 2010
VL 114
IS 50
BP 21969
EP 21975
DI 10.1021/jp106594n
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 693PU
UT WOS:000285236800012
ER
PT J
AU Kon, AA
AF Kon, Alexander A.
TI Shared and Physician-Directed Decision Making in Clinical Practice Reply
SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
LA English
DT Letter
C1 USN, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Kon, AA (reprint author), USN, San Diego Med Ctr, San Diego, CA 92152 USA.
EM aakon@ucdavis.edu
NR 0
TC 0
Z9 0
U1 0
U2 1
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 DEC 22
PY 2010
VL 304
IS 24
BP 2698
EP 2698
DI 10.1001/jama.2010.1788-a
PG 1
WC Medicine, General & Internal
SC General & Internal Medicine
GA 697MP
UT WOS:000285518000013
ER
PT J
AU Moore, TE
Fok, MC
Delcourt, DC
Slinker, SP
Fedder, JA
AF Moore, T. E.
Fok, M. -C.
Delcourt, D. C.
Slinker, S. P.
Fedder, J. A.
TI Global response to local ionospheric mass ejection
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID SOLAR-WIND; PLASMA SHEET; RING CURRENT; ION OUTFLOW; POLAR-CAP; DENSITY;
EVENTS
AB We revisit a reported "Ionospheric Mass Ejection" using prior event observations to guide a global simulation of local ionospheric outflows, global magnetospheric circulation, and plasma sheet pressurization, and comparing our results with the observed global response. Our simulation framework is based on test particle motions in the Lyon-Fedder-Mobarry (LFM) global circulation model electromagnetic fields. The inner magnetosphere is simulated with the Comprehensive Ring Current Model (CRCM) of Fok and Wolf, driven by the transpolar potential developed by the LFM magnetosphere, and includes an embedded plasmaspheric simulation. Global circulation is stimulated using the observed solar wind conditions for the period 24-25 September 1998. This period begins with the arrival of a Coronal Mass Ejection, initially with northward, but later with southward interplanetary magnetic field. Test particles are launched from the ionosphere with fluxes specified by local empirical relationships of outflow to electrodynamic and particle precipitation imposed by the MHD simulation. Particles are tracked until they are lost from the system downstream or into the atmosphere, using the full equations of motion. Results are compared with the observed ring current and a simulation of polar and auroral wind outflows driven globally by solar wind dynamic pressure. We find good quantitative agreement with the observed ring current, and reasonable qualitative agreement with earlier simulation results, suggesting that the solar wind driven global simulation generates realistic energy dissipation in the ionosphere and that the Strangeway relations provide a realistic local outflow description.
C1 [Moore, T. E.; Fok, M. -C.] NASA, Goddard Space Flight Ctr, Geospace Phys Lab, Heliophys Sci Div, Greenbelt, MD 20771 USA.
[Delcourt, D. C.] Ctr Etud Environm Terrestre & Planetaires, F-94107 St Maur, France.
[Fedder, J. A.] Leading Edge Technol Inc, Alexandria, VA 22301 USA.
[Slinker, S. P.] USN, Res Lab, Washington, DC 20375 USA.
RP Moore, TE (reprint author), NASA, Goddard Space Flight Ctr, Geospace Phys Lab, Heliophys Sci Div, Code 670, Greenbelt, MD 20771 USA.
EM t.e.moore@nasa.gov
RI Moore, Thomas/D-4675-2012; Fok, Mei-Ching/D-1626-2012
OI Moore, Thomas/0000-0002-3150-1137;
FU NASA Heliophysics Division [WBS 936723.02.01.03.82]; NASA
FX We thank Manuel Buenfil and Robert Wiegand, who through their mastery of
mathematics, programming, database, and visualization, made this work
possible. We acknowledge support from the NASA Heliophysics Division
through the ROSES program under WBS 936723.02.01.03.82, and NASA's High
Performance Computing Program.
NR 24
TC 4
Z9 4
U1 0
U2 1
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 DEC 21
PY 2010
VL 115
AR A00J14
DI 10.1029/2010JA015640
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 699BQ
UT WOS:000285639300004
ER
PT J
AU Yesinowski, JP
Ladouceur, HD
Purdy, AP
Miller, JB
AF Yesinowski, James P.
Ladouceur, Harold D.
Purdy, Andrew P.
Miller, Joel B.
TI Electrical and ionic conductivity effects on magic-angle spinning
nuclear magnetic resonance parameters of CuI
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID SOLID-STATE NMR; CUPROUS HALIDES; CHEMICAL-SHIFTS; QUADRUPOLAR NUCLEI;
DYNAMICAL STRUCTURE; MOLECULAR-DYNAMICS; LATTICE RELAXATION; ROTATING
SOLIDS; GAAS-IN; MAS NMR
AB We investigate experimentally and theoretically the effects of two different types of conductivity, electrical and ionic, upon magic-angle spinning NMR spectra. The experimental demonstration of these effects involves (63)Cu, (65)Cu, and (127)I variable temperature MAS-NMR experiments on samples of gamma-CuI, a Cu(+)-ion conductor at elevated temperatures as well as a wide bandgap semiconductor. We extend previous observations that the chemical shifts depend very strongly upon the square of the spinning-speed as well as the particular sample studied and the magnetic field strength. By using the (207)Pb resonance of lead nitrate mixed with the gamma-CuI as an internal chemical shift thermometer we show that frictional heating effects of the rotor do not account for the observations. Instead, we find that spinning bulk CuI, a p-type semiconductor due to Cu(+) vacancies in nonstoichiometric samples, in a magnetic field generates induced AC electric currents from the Lorentz force that can resistively heat the sample by over 200 degrees C. These induced currents oscillate along the rotor spinning axis at the spinning speed. Their associated heating effects are disrupted in samples containing inert filler material, indicating the existence of macroscopic current pathways between micron-sized crystallites. Accurate measurements of the temperature-dependence of the (63)Cu and (127)I chemical shifts in such diluted samples reveal that they are of similar magnitude (ca. 0.27 ppm/K) but opposite sign (being negative for (63)Cu), and appear to depend slightly upon the particular sample. This relationship is identical to the corresponding slopes of the chemical shifts versus square of the spinning speed, again consistent with sample heating as the source of the observed large shift changes. Higher drive-gas pressures are required to spin samples that have higher effective electrical conductivities, indicating the presence of a braking effect arising from the induced currents produced by rotating a conductor in a homogeneous magnetic field. We present a theoretical analysis and finite-element simulations that account for the magnitude and rapid time-scale of the resistive heating effects and the quadratic spinning speed dependence of the chemical shift observed experimentally. Known thermophysical properties are used as inputs to the model, the sole adjustable parameter being a scaling of the bulk thermal conductivity of CuI in order to account for the effective thermal conductivity of the rotating powdered sample. In addition to the dramatic consequences of electrical conductivity in the sample, ionic conductivity also influences the spectra. All three nuclei exhibit quadrupolar satellite transitions extending over several hundred kilohertz that reflect defects perturbing the cubic symmetry of the zincblende lattice. Broadening of these satellite transitions with increasing temperature arises from the onset of Cu(+) ion jumps to sites with different electric field gradients, a process that interferes with the formation of rotational echoes. This broadening has been quantitatively analyzed for the (63)Cu and (65)Cu nuclei using a simple model in the literature to yield an activation barrier of 0.64 eV (61.7 kJ/mole) for the Cu(+) ion jumping motion responsible for the ionic conductivity that agrees with earlier results based on (63)Cu NMR relaxation times of static samples. [doi:10.1063/1.3526484]
C1 [Yesinowski, James P.; Ladouceur, Harold D.; Purdy, Andrew P.; Miller, Joel B.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Yesinowski, JP (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
EM yesinowski@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 68
TC 10
Z9 10
U1 0
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD DEC 21
PY 2010
VL 133
IS 23
AR 234509
DI 10.1063/1.3526484
PG 18
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 697NG
UT WOS:000285519700031
PM 21186877
ER
PT J
AU Landerville, AC
Conroy, MW
Budzevich, MM
Lin, Y
White, CT
Oleynik, II
AF Landerville, A. C.
Conroy, M. W.
Budzevich, M. M.
Lin, Y.
White, C. T.
Oleynik, I. I.
TI Equations of state for energetic materials from density functional
theory with van der Waals, thermal, and zero-point energy corrections
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CRYSTAL-STRUCTURE; MOLECULAR-CRYSTALS; SOLID NITROMETHANE; DIFFRACTION;
PRESSURES; GPA; HMX
AB It is shown that the introduction of zero-point energy and thermal effects to density functional theory with an empirical van der Waals correction results in a significant improvement in the prediction of equilibrium volumes and isothermal equations of state for hydrostatic compressions of energetic materials at nonzero temperatures. This method can be used to predict the thermophysical properties of these materials for a wide range of pressures and temperatures. (C) 2010 American Institute of Physics. [doi:10.1063/1.3526754]
C1 [Landerville, A. C.; Conroy, M. W.; Budzevich, M. M.; Lin, Y.; Oleynik, I. I.] Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
[White, C. T.] USN, Res Lab, Washington, DC 20375 USA.
RP Landerville, AC (reprint author), Univ S Florida, Dept Phys, Tampa, FL 33620 USA.
RI Oleynik, Ivan/R-5004-2016
OI Oleynik, Ivan/0000-0002-5348-6484
FU Office of Naval Research (ONR); NRL; ARO within MURI
FX The work at the USF and NRL was supported by the Office of Naval
Research (ONR) and NRL. In addition, USF received a partial support from
ARO within MURI on insensitive munitions. Calculations were performed
using NSF TeraGrid facilities, USF Research Computing Cluster, and
computational facilities of Materials Simulation Laboratory at the
University of South Florida.
NR 29
TC 30
Z9 31
U1 1
U2 29
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 DEC 20
PY 2010
VL 97
IS 25
AR 251908
DI 10.1063/1.3526754
PG 3
WC Physics, Applied
SC Physics
GA 700SJ
UT WOS:000285764300026
ER
PT J
AU Lall, AA
Terray, A
Hart, SJ
AF Lall, A. A.
Terray, A.
Hart, S. J.
TI On-the-fly cross flow laser guided separation of aerosol particles based
on size, refractive index and density-theoretical analysis
SO OPTICS EXPRESS
LA English
DT Article
ID FORCE OPTICAL TRAP; ELECTRICAL MOBILITY ANALYSIS; AGGREGATE
SURFACE-AREA; RADIATION PRESSURE; VOLUME DISTRIBUTIONS; ONLINE
MEASUREMENT; CHROMATOGRAPHY; BEAM; MANIPULATION; LEVITATION
AB Laser separation of particles is achieved using forces resulting from the momentum exchange between particles and photons constituting the laser radiation. Particles can experience different optical forces depending on their size and/or optical properties, such as refractive index. Thus, particles can move at different speeds in the presence of an optical force, leading to spatial separations. In this paper, we present a theoretical analysis on laser separation of non-absorbing aerosol particles moving at speeds (1-10 cm/sec) which are several orders of magnitude greater than typical particle speeds used in previous studies in liquid medium. The calculations are presented for particle deflection by a loosely focused Gaussian 1064 nm laser, which simultaneously holds and deflects particles entrained in flow perpendicular to their direction of travel. The gradient force holds the particles against the viscous drag for a short period of time. The scattering force simultaneously pushes the particles, perpendicular to the flow, during this period. Our calculations show particle deflections of over 2500 mu m for 15 mu m aerosol particles, and a separation of over 1500 mu m between 5 mu m and 10 mu m particles when the laser is operated at 10W. We show that a separation of about 421 mu m can be achieved between two particles of the same size (10 mu m) but having a refractive index difference of 0.1. Density based separations are also possible. Two 10 mu m particles with a density difference of 600 kg/m(3) can be separated by 193 mu m. Examples are shown for separation distances between polystyrene, poly(methylmethacrylate), silica and water particles. These large laser guided deflections represent a novel achievement for optical separation in the gas phase. (C) 2010 Optical Society of America
C1 [Lall, A. A.] Excet Inc, Springfield, VA USA.
[Terray, A.; Hart, S. J.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Lall, AA (reprint author), Excet Inc, Springfield, VA USA.
EM sean.hart@nrl.navy.mi
FU Defense Threat Reduction Agency (DTRA) [BA09DET067]; Naval Research
Laboratory (NRL)
FX The authors would like to acknowledge funding by the Defense Threat
Reduction Agency (DTRA) under contract number BA09DET067, and the Naval
Research Laboratory (NRL).
NR 40
TC 10
Z9 10
U1 0
U2 12
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 DEC 20
PY 2010
VL 18
IS 26
BP 26775
EP 26790
DI 10.1364/OE.18.026775
PG 16
WC Optics
SC Optics
GA 698HF
UT WOS:000285584200072
PM 21196954
ER
PT J
AU Melinger, JS
Harsha, SS
Laman, N
Grischkowsky, D
AF Melinger, Joseph S.
Harsha, S. Sree
Laman, N.
Grischkowsky, D.
TI Temperature dependent characterization of terahertz vibrations of
explosives and related threat materials
SO OPTICS EXPRESS
LA English
DT Article
ID TIME-DOMAIN SPECTROSCOPY; FAR-INFRARED SPECTRA; SECURITY APPLICATIONS;
CRYSTAL-STRUCTURE; THEORETICAL-ANALYSIS; HMX; THZ; REFINEMENT; PETN;
FORM
AB Waveguide terahertz time-domain spectroscopy (THz-TDS) is used to characterize the temperature dependent vibrational properties of three threat-related materials: 4-amino-dinitrotoluene (4A-DNT), pentaerythritol tetranitrate (PETN), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX). These materials are characterized as thin polycrystalline layers deposited in the 50 micron gap of a metal parallel plate waveguide. For each material waveguide THz-TDS at least partially resolves the underlying vibrational spectrum and reveals new features that have not been observed in previous free space measurements of these materials. Strong experimental evidence for a phase transformation is observed for 4A-DNT as the polycrystalline layer on the waveguide surface is cooled to near 200 K. For PETN a highly resolved spectrum containing eleven vibrational lines is observed at 11 K with full-width at half maximum linewidths ranging from 7 GHz to 40 GHz. Based on comparison to measurements in the literature, our PETN measurement suggests that it is possible to produce narrow linewidths from a polycrystalline layer that approach those from a single crystal. Finally, for HMX, a highly resolved vibrational spectrum is measured that is assigned to the metastable gamma polymorph. (C)2010 Optical Society of America
C1 [Melinger, Joseph S.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Harsha, S. Sree; Laman, N.; Grischkowsky, D.] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA.
RP Melinger, JS (reprint author), USN, Res Lab, Div Elect Sci & Technol, Code 6812, Washington, DC 20375 USA.
EM joseph.melinger@nrl.navy.mil
RI Srikantaiah, Sree/D-7744-2011
FU Office of Naval Research; Defense Threat Reduction Agency [10-2960M]
FX This work was supported by the Office of Naval Research and the Defense
Threat Reduction Agency (10-2960M).
NR 26
TC 16
Z9 16
U1 1
U2 16
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 DEC 20
PY 2010
VL 18
IS 26
BP 27238
EP 27250
DI 10.1364/OE.18.027238
PG 13
WC Optics
SC Optics
GA 698HF
UT WOS:000285584200103
PM 21197001
ER
PT J
AU Englert, CR
Harlander, JM
Emmert, JT
Babcock, DD
Roesler, FL
AF Englert, Christoph R.
Harlander, John M.
Emmert, John T.
Babcock, David D.
Roesler, Frederick L.
TI Initial ground-based thermospheric wind measurements using Doppler
asymmetric spatial heterodyne spectroscopy (DASH)
SO OPTICS EXPRESS
LA English
DT Article
ID PEROT-INTERFEROMETER MEASUREMENTS; ATMOSPHERE RESEARCH SATELLITE;
MILLSTONE HILL; CIRCULATION
AB We present the first thermospheric wind measurements using a Doppler Asymmetric Spatial Heterodyne (DASH) spectrometer and the oxygen red-line nightglow emission. The ground-based observations were made from Washington, DC and include simultaneous calibration measurements to track and correct instrument drifts. Even though the measurements were made under challenging thermal and light pollution conditions, they are of good quality with photon statistics uncertainties between about three and twenty-nine meters per second, depending on the nightglow intensity. The wind data are commensurate with a representative set of Millstone Hill Fabry-Perot wind measurements selected for similar geomagnetic and solar cycle conditions. (C)2010 Optical Society of America
C1 [Englert, Christoph R.; Emmert, John T.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Harlander, John M.] St Cloud State Univ, Dept Phys Astron & Engn Sci, St Cloud, MN 56301 USA.
[Babcock, David D.] Artep Inc, Ellicott City, MD 21042 USA.
[Roesler, Frederick L.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
RP Englert, CR (reprint author), USN, Res Lab, Div Space Sci, Code 7641,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Christoph.Englert@nrl.navy.mil
OI Englert, Christoph/0000-0002-2145-6168
FU Office of Naval Research; NSF
FX This work was supported by the Office of Naval Research. The authors
would like to thank Ronen Feldman, Andrew N. Straatveit, John F. Moser,
W. Layne Marlin, Patrick B. Bell, David E. Siskind, Thomas J. Immel,
Stephen B. Mende, and Todd R. Pedersen for their assistance and/or
valuable discussions. The Millstone Hill FPI wind data were obtained
from the NSF-supported CEDAR database at the National Center for
Atmospheric Research.
NR 19
TC 7
Z9 7
U1 1
U2 10
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 DEC 20
PY 2010
VL 18
IS 26
BP 27416
EP 27430
DI 10.1364/OE.18.027416
PG 15
WC Optics
SC Optics
GA 698HF
UT WOS:000285584200004
PM 21197018
ER
PT J
AU Xu, X
Schmitz, WJ
Hurlburt, HE
Hogan, PJ
Chassignet, EP
AF Xu, X.
Schmitz, W. J., Jr.
Hurlburt, H. E.
Hogan, P. J.
Chassignet, E. P.
TI Transport of Nordic Seas overflow water into and within the Irminger
Sea: An eddy-resolving simulation and observations
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID DENMARK STRAIT OVERFLOW; SUBPOLAR NORTH-ATLANTIC; GREENLAND-SCOTLAND
RIDGE; BANK CHANNEL OVERFLOW; GIBBS FRACTURE-ZONE; ICELAND BASIN;
DEEP-WATER; BOUNDARY CURRENT; LABRADOR SEA; BOTTOM-WATER
AB Results from a climatologically forced, eddy-resolving (1/12 degrees) Atlantic simulation using the Hybrid Coordinate Ocean Model help clarify some presently unresolved connections between volume transports of Nordic Seas overflow water at key locations in the northernmost North Atlantic Ocean. The model results demonstrate that, in addition to the known westward flow through the Charlie Gibbs Fracture Zone (CGFZ), some Iceland Scotland overflow water (ISOW) flows westward through gaps in the Reykjanes Ridge north of the CGFZ into the Irminger Sea, and some flows southward along the eastern flank of the Mid-Atlantic Ridge into the West European Basin. These results provide insights into the well-known inconsistency between observed westward transport of ISOW through the CGFZ (2.4 Sv) and the transports upstream at Southeast of Iceland section (3.2 Sv) and downstream in the western Irminger Sea (4.5 Sv). Although the portion of the simulated ISOW that flows through CGFZ is about 500 m deeper than observed, the model results also show two ISOW pathways of this flow into the Irminger Sea, one northward along the western flank of the Reykjanes Ridge and the other westward before turning north-eastward on the western side of the Irminger Basin. Comparisons with the long-term moored instrument database in the Irminger Sea show that the model-based mean circulation is in reasonable agreement with observed volume transports of overflow water and that it gives approximately correct temperature and salinity characteristics.
C1 [Xu, X.] Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
[Chassignet, E. P.] Florida State Univ, Ctr Ocean Atmospher Predict Studies, Tallahassee, FL 32306 USA.
[Hurlburt, H. E.; Hogan, P. J.] USN, Div Oceanog, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Schmitz, W. J., Jr.] Texas A&M Univ, Harte Res Inst, Corpus Christi, TX 78412 USA.
RP Xu, X (reprint author), Univ So Mississippi, Dept Marine Sci, 1020 Balch Blvd, Stennis Space Ctr, MS 39529 USA.
EM xiaobiao.xu@usm.edu
FU National Ocean Partnership Program; Office of Naval Research [601153N]
FX This work is a contribution to the project "U.S.-GODAE: Global Ocean
Prediction using the HYbrid Coordinate Ocean Model (HYCOM)" funded under
the National Ocean Partnership Program and to the 6.1 project " Global
Remote Littoral Forcing via Deep Water Pathways" funded by the Office of
Naval Research under program element 601153N. Simulations were performed
on the supercomputer at the Naval Oceanographic Office, Stennis Space
Center, MS, provided by the U.S. Defense Department High Performance
Computing Modernization Program. The authors thank A. Wallcraft and E.
J. Metzger from NRL/SSC for help on the configurations of numerical
experiments. Figures 4a and A1b are plotted using Ocean Data View
(http://odv.awi.de). This is Naval Research Laboratory publication
number NRL/JA/7304-10-251, and it has been approved for public release.
NR 55
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U2 15
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD DEC 18
PY 2010
VL 115
AR C12048
DI 10.1029/2010JC006351
PG 20
WC Oceanography
SC Oceanography
GA 696UB
UT WOS:000285465800002
ER
PT J
AU Defang, GN
Khetawat, D
Broder, CC
Quinnan, GV
AF Defang, Gabriel N.
Khetawat, Dimple
Broder, Christopher C.
Quinnan, Gerald V., Jr.
TI Induction of neutralizing antibodies to Hendra and Nipah glycoproteins
using a Venezuelan equine encephalitis virus in vivo expression system
SO VACCINE
LA English
DT Article
DE Henipavirus; Alphavirus replicon; Vaccine
ID HUMAN-IMMUNODEFICIENCY-VIRUS; ALPHAVIRUS REPLICON PARTICLES; TO-PERSON
TRANSMISSION; MUCOSAL CHALLENGE; HIGH INFECTIVITY; SUBUNIT VACCINE;
MEMBRANE-FUSION; FLYING-FOXES; TYPE-1 MN; PROTECTION
AB The emergence of Hendra Virus (Hey) and Nipah Virus (NiV) which can cause fatal infections in both animals and humans has triggered a search for an effective vaccine. Here, we have explored the potential for generating an effective humoral immune response to these zoonotic pathogens using an alphavirus-based vaccine platform. Groups of mice were immunized with Venezuelan equine encephalitis virus replicon particles (VRPs) encoding the attachment or fusion glycoproteins of either Hey or NiV. We demonstrate the induction of highly potent cross-reactive neutralizing antibodies to both viruses using this approach. Preliminary study suggested early enhancement in the antibody response with use of a modified version of VRP. Overall, these data suggest that the use of an alphavirus-derived vaccine platform might serve as a viable approach for the development of an effective vaccine against the henipaviruses. Published by Elsevier Ltd.
C1 [Defang, Gabriel N.] USN, Viral & Rickettsial Dis Dept, Med Res Ctr, Silver Spring, MD 20910 USA.
[Defang, Gabriel N.; Quinnan, Gerald V., Jr.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Defang, Gabriel N.; Khetawat, Dimple; Broder, Christopher C.] Uniformed Serv Univ Hlth Sci, Dept Microbiol & Immunol, Bethesda, MD 20814 USA.
RP Defang, GN (reprint author), USN, Viral & Rickettsial Dis Dept, Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM gabriel.defang@med.navy.mil
FU NIH [AI037438, AI054715]; Middle Atlantic Regional Center of Excellence
(MARCE) for Biodefense and Emerging Infectious Disease Research, NIH
[AI057168]
FX This work was supported by NIH grants AI037438, AI054715 and the Middle
Atlantic Regional Center of Excellence (MARCE) for Biodefense and
Emerging Infectious Disease Research, NIH AI057168.
NR 60
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD DEC 16
PY 2010
VL 29
IS 2
BP 212
EP 220
DI 10.1016/j.vaccine.2010.10.053
PG 9
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 717OM
UT WOS:000287057300009
PM 21050901
ER
PT J
AU Mied, RP
Schulz, WJ
Handler, RA
Snow, CM
Fusina, RA
Porter, JH
AF Mied, Richard P.
Schulz, William J.
Handler, Robert A.
Snow, Charlotte M.
Fusina, Robert A.
Porter, John H.
TI Remote and local forcing of a coastal lagoon The Virginia Coast Reserve
SO CONTINENTAL SHELF RESEARCH
LA English
DT Article
DE Remote forcing; Lagoon; Continental shelf wave; Virginia coast r serve;
Tide; Wind
ID CHESAPEAKE BAY; DELAWARE BAY; TIDAL VARIABILITY; CONTINENTAL-SHELF;
TIME-SERIES; ADJACENT; RIVER; CIRCULATION; DISPERSAL; DYNAMICS
AB The effects of local and remote wind forcing of water level heights in the Virginia Coast Reserve (VCR) are examined in order to determine the significant forces governing estuarine motions over subtidal time scales Recent (1996-2008) data from tide and wind stations in the lagoon a tide station to the north at Sandy Hook NJ and one offshore wind station at the Chesapeake Light Tower are examined Sea surface height spectrum calculations reveal significant diurnal and semidiurnal tidal effects along with subtidal variations but a suppressed inertial signal Sea-surface heights (SSH) with 2-5 day periods at Wachapreague VA are coherent with those at Sandy Hook and lag them in time suggesting that southward-propagating continental shelf waves provide subtidal variability within the lagoon The coherence between lagoon winds and sea surface height as well as between winds and cross-lagoon sea height gradient were significant at a relatively small number of frequency and wind direction combinations The frequencies at which this wind forcing occurs are the tidal and subtidal bands present to the north so that lagoon winds selectively augment existing SSH signals but do not generate them The impact of the wind direction is closely related to the geometry of the lagoon and bounding landmasses The effect of wind stress is also constrained by geometry in affecting the cross-lagoon water height gradient Water levels at subtidal frequencies are likely forced by a combination of local wind forcing remote wind forcing and oceanic forcing modified by the complex topography of the lagoon shelf and barrier Islands Published by Elsevier Ltd
C1 [Mied, Richard P.; Handler, Robert A.; Snow, Charlotte M.; Fusina, Robert A.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Schulz, William J.] USN Acad, Dept Oceanog, Annapolis, MD 21402 USA.
[Porter, John H.] Univ Virginia, Dept Environm Sci, Charlottesville, VA 22903 USA.
RP Mied, RP (reprint author), USN, Res Lab, Remote Sensing Div, Code 7200,4555 Overlook Ave, Washington, DC 20375 USA.
FU National Science Foundation [BSR-8702333-06, DEB 9211772, DEB-9411974,
DEB-0080381, DEB-0621014]; Naval Research Laboratory [72-6286-00]
FX Some data used in this publication were provided by the Virginia Coast
Reserve LTER project and was based upon work supported by National
Science Foundation grants BSR-8702333-06 DEB 9211772 DEB-9411974
DEB-0080381 and DEB-0621014 The Virginia Coast Reserve of the Nature
Conservancy provided access to study sites Work at the Naval Research
Laboratory was supported by project 72-6286-00 We would also like to
express our appreciation to Joseph Rhea (NRL) for invaluable programming
and data assistance
NR 26
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U1 0
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0278-4343
J9 CONT SHELF RES
JI Cont. Shelf Res.
PD DEC 15
PY 2010
VL 30
IS 20
BP 2057
EP 2066
DI 10.1016/j.csr.2010.10.005
PG 10
WC Oceanography
SC Oceanography
GA 701HK
UT WOS:000285808800002
ER
PT J
AU Jiang, T
Emerson, D
Twarowski, K
Finkenstadt, D
Therrien, J
AF Jiang, T.
Emerson, D.
Twarowski, K.
Finkenstadt, D.
Therrien, J.
TI Rotation of the linear-polarization plane of transmitted and reflected
light by single-and few-layer graphene
SO PHYSICAL REVIEW B
LA English
DT Article
ID SHEETS; FILMS
AB Transmission and reflection measurements performed on single- and few-layer graphene indicate the presence of circular dichroism (CD). Surface roughness appears to moderate the effect with ultraflat graphene on mica not showing CD. Application of an external magnetic field had no effect, ruling out any contribution from spin polarization. Symmetry breaking of the graphene lattice due to a soft shear mode in the graphene sheet is believed to be the origin of the requisite asymmetry for this effect to occur.
C1 [Emerson, D.; Twarowski, K.; Therrien, J.] Univ Massachusetts, Dept Elect & Comp Engn, Lowell, MA 01854 USA.
[Jiang, T.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
[Finkenstadt, D.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Therrien, J (reprint author), Univ Massachusetts, Dept Elect & Comp Engn, Lowell, MA 01854 USA.
EM joel_therrien@uml.edu
FU National Science Foundation under the Nanoscale Science and Engineering
Centers [NSF-0425826]; Office of Naval Research, via the NRL-USNA
FX We would like to thank Anna Swan of Boston University for providing the
Raman analysis of our samples and Zhiyoung Gu at UML for the use of the
facilities in his laboratory for some of these experiments. We would
also like to thank Alkim Akyurtlu and Nantakan Wongkasem of UML for
their input on the chirality measurements and Antonio Castro-Neto from
Boston University for comments on the manuscript. This work was
supported by the National Science Foundation under the Nanoscale Science
and Engineering Centers Program (Award No. NSF-0425826). D.F. was
supported by the Office of Naval Research, via the NRL-USNA Cooperative
Program.
NR 28
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U1 0
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD DEC 15
PY 2010
VL 82
IS 23
AR 235430
DI 10.1103/PhysRevB.82.235430
PG 5
WC Physics, Condensed Matter
SC Physics
GA 713XB
UT WOS:000286769600007
ER
PT J
AU Gee, AM
Pfalzer, L
Stout, N
Levy, E
McGarvey, C
Springer, B
Soballe, P
Gerber, L
AF Gee, A. Morehead
Pfalzer, L.
Stout, N.
Levy, E.
McGarvey, C.
Springer, B.
Soballe, P.
Gerber, L.
TI Racial Disparities in Physical and Functional Domains in Women with
Early Breast Cancer
SO CANCER RESEARCH
LA English
DT Meeting Abstract
C1 NIH, Bethesda, MD 20892 USA.
Univ Michigan, Flint, MI 48503 USA.
Natl Naval Med Ctr, Bethesda, MD USA.
CLM Consulting, Rockville, MD USA.
Balboa Naval Hosp, San Diego, CA USA.
George Mason Univ, Fairfax, VA 22030 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
EI 1538-7445
J9 CANCER RES
JI Cancer Res.
PD DEC 15
PY 2010
VL 70
SU 24
MA P1-10-06
DI 10.1158/0008-5472.SABCS10-P1-10-06
PG 1
WC Oncology
SC Oncology
GA V43QL
UT WOS:000209695800458
ER
PT J
AU Overfelt, PL
Halterman, K
Feng, SM
Bowling, DR
AF Overfelt, P. L.
Halterman, Klaus
Feng, Simin
Bowling, D. R.
TI Mode bifurcation and fold points of complex dispersion curves for the
negative index metamaterial Goubau line
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID LEAKY WAVES; FREQUENCY; GUIDES
AB In this paper the complex dispersion curves of the four lowest-order transverse magnetic modes of a dielectric Goubau line (epsilon > 0, mu > 0) are compared with those of a weakly dispersive negative index metamaterial (NIM) Goubau line. The vastly different dispersion curve structure for the NIM Goubau line is characterized by unusual features such as mode bifurcation, complex fold points, both proper and improper complex modes, and merging of complex and real modes. (C) 2010 American Institute of Physics. [doi:10.1063/1.3465330]
C1 [Overfelt, P. L.; Halterman, Klaus; Feng, Simin; Bowling, D. R.] USN, Res & Intelligence Dept, Div Phys, Air Warfare Ctr, China Lake, CA 93555 USA.
RP Overfelt, PL (reprint author), USN, Res & Intelligence Dept, Div Phys, Air Warfare Ctr, China Lake, CA 93555 USA.
EM klaus.halterman@navy.mil
RI Halterman, Klaus/G-3826-2012;
OI Halterman, Klaus/0000-0002-6355-3134
FU ONR [N0001410-WX-20737]; DOD HPCMP; HPC
FX The authors acknowledge G. A. Lindsay, Z. Sechrist, and G. Ostrom for
valuable discussions and the support from ONR under Contract No.
N0001410-WX-20737, as well as NAVAIR's ILIR program from ONR. K. H. is
also supported in part by a grant of HPC resources as part of the DOD
HPCMP.
NR 37
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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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD DEC 15
PY 2010
VL 108
IS 12
AR 124310
DI 10.1063/1.3465330
PG 5
WC Physics, Applied
SC Physics
GA 700UC
UT WOS:000285768800103
ER
PT J
AU Doschek, GA
Feldman, U
AF Doschek, G. A.
Feldman, U.
TI The solar UV-x-ray spectrum from 1.5 to 2000 angstrom
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Review
ID ULTRAVIOLET IMAGING SPECTROMETER; ACTIVE-REGION LOOPS; TRANSITION
REGION; QUIET-SUN; RATE COEFFICIENTS; DIELECTRONIC RECOMBINATION;
SPECTROSCOPIC OBSERVATIONS; DENSITY-MEASUREMENTS; ENERGETIC PARTICLES;
HINOTORI SATELLITE
AB This review illustrates the potential of UV-x-ray spectroscopy for determining the physical conditions in the solar chromosphere, transition region and corona, and how spectroscopy can be used as a tool to understand the physical mechanisms governing the atmosphere. It also illustrates the potential for understanding transient events such as solar flares. This is a vast topic, and therefore the review is necessarily not complete, but we have tried to be as general as possible in showing in particular how solar spectra are currently being used to understand the solar upper atmosphere. The review is intended for non-solar physicists with an interest in spectroscopy as well as for solar physicists who are not specialists in spectroscopy.
C1 [Doschek, G. A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Feldman, U.] Artep Inc, Ellicott City, MD 21042 USA.
RP Doschek, GA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM ufeldman@ssd5.nrl.navy.mil
FU NASA; ONR/NRL; JAXA; NAOJ; STFC; ESA (European Space Agency); NSC
(Norway)
FX The authors acknowledge support from the NASA Hinode program and from
ONR/NRL 6.1 basic research funds. Hinode is a Japanese mission developed
and launched by ISAS/JAXA, collaborating with NAOJ as domestic partner,
and NASA (USA) and STFC (UK) as international partners. Scientific
operation of the Hinode mission is conducted by the Hinode science team
organized at ISAS/JAXA. This team mainly consists of scientists from
institutes in the partner countries. Support for the post-launch
operation is provided by JAXA and NAOJ, STFC, NASA, ESA (European Space
Agency) and NSC (Norway). We are grateful to the Hinode team for all
their efforts in the design, build and operation of the mission.
NR 107
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U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
EI 1361-6455
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD DEC 14
PY 2010
VL 43
IS 23
AR 232001
DI 10.1088/0953-4075/43/23/232001
PG 23
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 683FS
UT WOS:000284458100002
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Bellazzini, R
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Cecchi, C
Celik, O
Chaty, S
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Conrad, J
den Hartog, PR
Dermer, CD
de Angelis, A
de Palma, F
Dib, R
Dormody, M
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Enoto, T
Favuzzi, C
Frailis, M
Fusco, P
Gargano, F
Gehrels, N
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hays, E
Israel, GL
Johannesson, G
Johnson, AS
Kaspi, VM
Katagiri, H
Kataoka, J
Knodlseder, J
Kuss, M
Lande, J
Lee, SH
Lemoine-Goumard, M
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Marelli, M
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Naumann-Godo, M
Nolan, PL
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Parent, D
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Rea, N
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Sadrozinski, HFW
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, DA
Spandre, G
Spinelli, P
Strickman, MS
Takahashi, H
Tanaka, T
Thayer, JB
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Troja, E
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vianello, G
Vitale, V
Waite, AP
Winer, BL
Wood, KS
Yang, Z
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Cecchi, C.
Celik, Oe.
Chaty, S.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Conrad, J.
den Hartog, P. R.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Dib, R.
Dormody, M.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Enoto, T.
Favuzzi, C.
Frailis, M.
Fusco, P.
Gargano, F.
Gehrels, N.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hays, E.
Israel, G. L.
Johannesson, G.
Johnson, A. S.
Kaspi, V. M.
Katagiri, H.
Kataoka, J.
Knoedlseder, J.
Kuss, M.
Lande, J.
Lee, S. -H.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Marelli, M.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Naumann-Godo, M.
Nolan, P. L.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Parent, D.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Rea, N.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Sadrozinski, H. F. -W.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, D. A.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Troja, E.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vitale, V.
Waite, A. P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ziegler, M.
TI SEARCH FOR GAMMA-RAY EMISSION FROM MAGNETARS WITH THE FERMI LARGE AREA
TELESCOPE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma rays: stars; magnetic fields; pulsars: individual (4U 0142+614, 1E
1048.1-5937, 1E 1841-045, 1E 1547-5408, 1RXS J1708-4009, XTE J1810-197,
CXOU J1647-4552, 1E 2259+586, SGR 1900+14, SGR 1806-20, SGR 1627-41, SGR
0501+4516, SGR 0418+5729); stars: magnetars
ID RESONANT CYCLOTRON SCATTERING; HARD X-RAYS; 4U 0142+61; AXP 4U-0142+61;
1E 1547.0-5408; SGR 0501+4516; CRAB PULSAR; DISCOVERY; REPEATER;
OUTBURST
AB We report on the search for 0.1-10 GeV emission from magnetars in 17 months of Fermi Large Area Telescope (LAT) observations. No significant evidence for gamma-ray emission from any of the currently known magnetars is found. The most stringent upper limits to date on their persistent emission in the Fermi energy range are estimated between similar to 10(-12) and 10(-10) erg s(-1) cm(-2), depending on the source. We also searched for gamma-ray pulsations and possible outbursts, also with no significant detection. The upper limits derived support the presence of a cutoff at an energy below a few MeV in the persistent emission of magnetars. They also show the likely need for a revision of current models of outer-gap emission from strongly magnetized pulsars, which, in some realizations, predict detectable GeV emission from magnetars at flux levels exceeding the upper limits identified here using the Fermi-LAT observations.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; den Hartog, P. R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Enoto, T.; Glanzman, T.; Godfrey, G.; Johnson, A. S.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Waite, A. P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; den Hartog, P. R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Enoto, T.; Glanzman, T.; Godfrey, G.; Johnson, A. S.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Waite, A. P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Chaty, S.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] CEA IRFU CNRS Univ Paris Diderot, Lab AIM, Serv Astrophys, CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Hadasch, D.; Rea, N.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.; Marelli, M.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe.; Gehrels, N.; Harding, A. K.; Hays, E.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Troja, E.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Moiseev, A. A.; Vasileiou, V.] Ctr Res & Explorat Space Sci & Technol CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Conrad, J.; Yang, Z.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Yang, Z.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dib, R.; Kaspi, V. M.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Dormody, M.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Dormody, M.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Frailis, M.] Ist Nazl Astrofis, Osservatorio Astron Trieste, I-34143 Trieste, Italy.
[Giommi, P.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res CSPAR, Huntsville, AL 35899 USA.
[Hanabata, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Israel, G. L.] Osserv Astron Roma, I-00040 Monte Porzio Catone, Roma, Italy.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Knoedlseder, J.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mehault, J.; Nuss, E.; Piron, F.] Univ Montpellier 2, CNRS IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Ozaki, M.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.; Vianello, G.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Chavannes Des Bois, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM tburnett@u.washington.edu; andrea.caliandro@ieec.uab.es;
daniela.hadasch@gmail.com; rea@ieec.uab.es
RI Hays, Elizabeth/D-3257-2012; Rea, Nanda/I-2853-2015; Johannesson,
Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Orlando, E/R-5594-2016; Thompson, David/D-2939-2012; Rando,
Riccardo/M-7179-2013; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Saz Parkinson, Pablo
Miguel/I-7980-2013; Ozaki, Masanobu/K-1165-2013
OI Tramacere, Andrea/0000-0002-8186-3793; Baldini,
Luca/0000-0002-9785-7726; Marelli, Martino/0000-0002-8017-0338; giommi,
paolo/0000-0002-2265-5003; De Angelis, Alessandro/0000-0002-3288-2517;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Chaty, Sylvain/0000-0002-5769-8601;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Israel,
GianLuca/0000-0001-5480-6438; Giroletti, Marcello/0000-0002-8657-8852;
Rea, Nanda/0000-0003-2177-6388; Johannesson,
Gudlaugur/0000-0003-1458-7036; Loparco, Francesco/0000-0002-1173-5673;
Gargano, Fabio/0000-0002-5055-6395; Moskalenko,
Igor/0000-0001-6141-458X; Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214; Giordano,
Francesco/0000-0002-8651-2394; Rando, Riccardo/0000-0001-6992-818X;
Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385;
FU K. A. Wallenberg Foundation; International Doctorate on Astroparticle
Physics (IDAPP); NASA, United States; DOE, United States; CEA/Irfu,
France; IN2P3/CNRS, France; ASI, Italy; INFN, Italy; MEXT, Japan; KEK,
Japan; JAXA, Japan; Swedish Research Council; National Space Board in
Sweden; INAF in Italy; CNES in France
FX Partially supported by the International Doctorate on Astroparticle
Physics (IDAPP) program.; The Fermi-LAT Collaboration acknowledges
support from a number of agencies and institutes for both development
and the operation of the LAT as well as scientific data analysis. These
include NASA and DOE in the United States, CEA/Irfu and IN2P3/CNRS in
France, ASI and INFN in Italy, MEXT, KEK, and JAXA in Japan, and the K.
A. Wallenberg Foundation, the Swedish Research Council, and the National
Space Board in Sweden. Additional support from INAF in Italy and CNES in
France for science analysis during the operations phase is also
gratefully acknowledged.
NR 43
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U1 0
U2 1
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 DEC 10
PY 2010
VL 725
IS 1
BP L73
EP L78
DI 10.1088/2041-8205/725/1/L73
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 684UE
UT WOS:000284575400016
ER
PT J
AU Caraveo, PA
De Luca, A
Marelli, M
Bignami, GF
Ray, PS
Parkinson, PMS
Kanbach, G
AF Caraveo, P. A.
De Luca, A.
Marelli, M.
Bignami, G. F.
Ray, P. S.
Parkinson, P. M. Saz
Kanbach, G.
TI X-RAY PULSATIONS FROM THE RADIO-QUIET GAMMA-RAY PULSAR IN CTA 1
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE pulsars: individual (PSR J0007+7303); stars: neutron
ID LARGE-AREA TELESCOPE; SUPERNOVA REMNANT CTA-1; PHOTON IMAGING CAMERA;
XMM-NEWTON; GEMINGA; SPECTROSCOPY; SPECTRUM
AB Prompted by the Fermi-LAT discovery of a radio-quiet gamma-ray pulsar inside the CTA 1 supernova remnant, we obtained a 130 ks XMM-Newton observation to assess the timing behavior of this pulsar. Exploiting both the unprecedented photon harvest and the contemporary Fermi-LAT timing measurements, a 4.7 sigma single-peak pulsation is detected, making PSR J0007+7303 the second example, after Geminga, of a radio-quiet gamma-ray pulsar also seen to pulsate in X-rays. Phase-resolved spectroscopy shows that the off-pulse portion of the light curve is dominated by a power-law, non-thermal spectrum, while the X-ray peak emission appears to be mainly of thermal origin, probably from a polar cap heated by magnetospheric return currents, pointing to a hot spot varying throughout the pulsar rotation.
C1 [Caraveo, P. A.; De Luca, A.; Marelli, M.; Bignami, G. F.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[De Luca, A.; Bignami, G. F.] Ist Univ Super IUSS Pavia, I-27100 Pavia, Italy.
[De Luca, A.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[Marelli, M.] Univ Insubria, I-21100 Varese, Italy.
[Ray, P. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Parkinson, P. M. Saz] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Kanbach, G.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
RP Caraveo, PA (reprint author), INAF Ist Astrofis Spaziale & Fis Cosm, Via Bassini 15, I-20133 Milan, Italy.
EM pat@iasf-milano.inaf.it
RI Saz Parkinson, Pablo Miguel/I-7980-2013;
OI Marelli, Martino/0000-0002-8017-0338; Bignami,
Giovanni/0000-0001-9582-2450; Caraveo, Patrizia/0000-0003-2478-8018; De
Luca, Andrea/0000-0001-6739-687X; Ray, Paul/0000-0002-5297-5278
FU ESA; USA (NASA); [ASI-INAF I/088/06/0]; [NASA NIPR NNG10PL01I30]
FX This work was supported by contracts ASI-INAF I/088/06/0 and NASA NIPR
NNG10PL01I30.; Based on observations with XMM-Newton, an ESA science
mission with instruments and contributions directly funded by ESA member
states and the USA (NASA).
NR 24
TC 16
Z9 16
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD DEC 10
PY 2010
VL 725
IS 1
BP L6
EP L10
DI 10.1088/2041-8205/725/1/L6
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 684UE
UT WOS:000284575400002
ER
PT J
AU Jallo, LJ
Schoenitz, M
Dreizin, EL
Dave, RN
Johnson, CE
AF Jallo, Laila J.
Schoenitz, Mirko
Dreizin, Edward L.
Dave, Rajesh N.
Johnson, Curtis E.
TI The effect of surface modification of aluminum powder on its
flowability, combustion and reactivity
SO POWDER TECHNOLOGY
LA English
DT Article
DE Dry coating; Silane treatment; Flowability; Reactivity; Combustion
ID INVERSE GAS-CHROMATOGRAPHY; POLYMORPHIC PHASE-TRANSFORMATIONS;
CARBON-BLACK; PARTICLES; ENERGY; IGNITION; FORCES
AB Surface modification of aluminum powders for the purpose of flow improvement was performed and several samples were prepared. Correlations between the flowability and reactivity for these powders as well as for the initial untreated aluminum powder were established. The powders were characterized using Scanning Electron Microscope (SEM), particle size distribution, angle of repose flowability test, Constant Volume Explosion (CVE) combustion test, and Thermo-Gravimetric Analysis (TGA). The surface modification of micron-sized aluminum powders was done by: (1) dry coating nano-particles of silica, titania and carbon black onto the surface of spherical aluminum powders and (2) chemically and physically altering the surface properties of the same powders with methyltrichlorosilane. All surface modifications improved flowability of the powders. CVE measurements indicate that powders with an improved flowability exhibit improved combustion characteristics if the powder treatment does not add an inert component to aluminum. The TGA results do not show significant differences in the reactivity of various powders. Based on combined flowability and CVE characteristics, the silane modified material gave the best results followed by the powders dry coated with carbon, titania and silica, respectively. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Jallo, Laila J.; Schoenitz, Mirko; Dreizin, Edward L.; Dave, Rajesh N.] New Jersey Inst Technol, Otto York Dept Chem Biol & Pharmaceut Engn, Newark, NJ 07102 USA.
[Johnson, Curtis E.] Naval Air Warfare Ctr, China Lake, CA USA.
RP Dave, RN (reprint author), New Jersey Inst Technol, Otto York Dept Chem Biol & Pharmaceut Engn, 138 Warren St, Newark, NJ 07102 USA.
EM dave@adm.njit.edu
RI Dreizin, Edward/O-6416-2014;
OI Dave, Rajesh/0000-0001-7706-2259; Dreizin, Edward/0000-0003-0859-0984
FU U.S. Naval Undersea Warfare Center; National Science Foundation through
the ERC [EEC-0540855]; Defense Advanced Research Projects Agency
FX This work has been supported by the U.S. Naval Undersea Warfare Center,
the National Science Foundation through the ERC (EEC-0540855) awards,
and the Defense Advanced Research Projects Agency. Authors also thank
Aveka, Inc., Woodbury, MN, for providing use of the MAIC device. We
thank Roger Sullivan and Brian Zentner (Naval Air Warfare Center) for
assistance with the silane treatment process, and Gregory Ostrom for
conducting the ion chromatography analysis.
NR 32
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Z9 16
U1 1
U2 28
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0032-5910
J9 POWDER TECHNOL
JI Powder Technol.
PD DEC 10
PY 2010
VL 204
IS 1
BP 63
EP 70
DI 10.1016/j.powtec.2010.07.017
PG 8
WC Engineering, Chemical
SC Engineering
GA 664XS
UT WOS:000282997900008
ER
PT J
AU Palma, JL
Atas, E
Hardison, L
Marder, TB
Collings, JC
Beeby, A
Melinger, JS
Krause, JL
Kleiman, VD
Roitberg, AE
AF Palma, Julio L.
Atas, Evrim
Hardison, Lindsay
Marder, Todd B.
Collings, Jonathan C.
Beeby, Andrew
Melinger, Joseph S.
Krause, Jeffrey L.
Kleiman, Valeria D.
Roitberg, Adrian E.
TI Electronic Spectra of the Nanostar Dendrimer: Theory and Experiment
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID MM3 FORCE-FIELD; SIMILAR PHENYLACETYLENE DENDRIMERS; CORRELATED EXCIMER
FORMATION; CARLO-QUANTUM MECHANICS; ENERGY-TRANSFER; PHOTOPHYSICAL
PROPERTIES; MOLECULAR-MECHANICS; ANTENNA SUPERMOLECULES; DESIGNING
DENDRIMERS; OPTICAL-PROPERTIES
AB We present a sequential molecular dynamics/quantum mechanics (MD/QM) study and steady-state spectroscopy measurements of the nanostar dendrimer (a phenylene-ethynylene dendrimer attached to a ethynylperylene chromophore) to determine the temperature dependence of the electronic absorption process. We studied the nanostar as separate units and performed MD simulations for each chromophore at 10 and 300 K to study the effects of the temperature on the structures. The absorption spectrum of the nanostar, at 10 and 300 K, was computed using an ensemble of 8000 structures for each chromophore. Quantum mechanical (QM) ZINDO/S calculations were performed for each conformation in the ensemble, including 16 excited states for a total of 128 000 excitation energies, and the intensity was scaled linearly with the number of conjugated units. Our calculations and experimental spectra measured for the individual chromophores and the nanostar are in good agreement. We found that for each system, the spectral features are narrow at 10 K because the transitions are localized in wavelength and the absorption energy depends primarily on the length of the chromophore, while at 300 K, the spectra features are quite broad and blue-shifted due to conformational changes on the systems. We explain in detail the effects of temperature and their consequence for the absorption process.
C1 [Palma, Julio L.; Atas, Evrim; Hardison, Lindsay; Krause, Jeffrey L.; Kleiman, Valeria D.; Roitberg, Adrian E.] Univ Florida, Dept Chem, Gainesville, FL 32611 USA.
[Palma, Julio L.; Krause, Jeffrey L.; Roitberg, Adrian E.] Univ Florida, Quantum Theory Project, Gainesville, FL 32611 USA.
[Marder, Todd B.; Collings, Jonathan C.; Beeby, Andrew] Univ Durham, Dept Chem, Durham DH1 3LE, England.
[Melinger, Joseph S.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Kleiman, VD (reprint author), Univ Florida, Dept Chem, Gainesville, FL 32611 USA.
EM kleiman@ufl.edu; roitberg@ufl.edu
RI Roitberg, Adrian/A-2378-2009; Beeby, Andrew/G-2866-2012; Kleiman,
Valeria/H-7818-2013;
OI Kleiman, Valeria/0000-0002-9975-6558; Marder, Todd/0000-0002-9990-0169
FU DOE [DE-FG02-02ER45995]; NSF [CHE-0239120]; University of Florida; Large
Allocations Resource Committee [TG-MCA05S010]; One North East via UIC
FX This work was supported in part by DOE Grant DE-FG02-02ER45995 to J.L.K.
and A.E.R., NSF Grant CHE-0239120 to V.D.K., and a University of Florida
Alumni Fellowship to J.L.P. Computer resources were provided by the
Large Allocations Resource Committee through Grant TG-MCA05S010 to
A.E.R. and by the University of Florida High-Performance Computing
Center. We wish to thank Prof. J. Moore (University of Illinois) for
providing us with the nanostar sample. A.B. and T.B.M. thank One North
East for support via the UIC Nanotechnology programme. J.L.P. gratefully
acknowledges the help of Dr. Marcelo Videa and the Chemistry Department
of ITESM Campus Monterrey.
NR 71
TC 13
Z9 13
U1 3
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 DEC 9
PY 2010
VL 114
IS 48
BP 20702
EP 20712
DI 10.1021/jp1062918
PG 11
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 686YS
UT WOS:000284738900051
ER
PT J
AU Jansen, R
Min, BC
Dash, SP
Sharma, S
Kioseoglou, G
Hanbicki, AT
van't Erve, OMJ
Thompson, PE
Jonker, BT
AF Jansen, R.
Min, B. C.
Dash, S. P.
Sharma, S.
Kioseoglou, G.
Hanbicki, A. T.
van't Erve, O. M. J.
Thompson, P. E.
Jonker, B. T.
TI Electrical spin injection into moderately doped silicon enabled by
tailored interfaces
SO PHYSICAL REVIEW B
LA English
DT Article
ID METAL/TUNNEL BARRIER CONTACT; TUNNEL-JUNCTIONS; SEMICONDUCTOR;
POLARIZATION
AB Whereas spin injection from a ferromagnet into heavily doped Si is facilitated by tunneling through a narrow depletion region, it is shown here that for moderately doped Si it is crucial to suppress the Schottky barrier. Reducing carrier depletion by exposing the Si surface to a Cs flux prior to Al2O3 tunnel barrier growth, we demonstrate spin injection by tunneling from Fe into Si (confirmed by circular polarized electroluminescence) and achieve electrical detection (via the Hanle effect) of spin accumulation induced at room temperature in Ni80Fe20/Al2O3/Si junctions with 1.5 x 1018 cm(-3) carrier density. Tailored interfaces thus enable spin injection into moderately doped Si.
C1 [Jansen, R.; Min, B. C.; Dash, S. P.; Sharma, S.] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands.
[Min, B. C.] Korea Inst Sci & Technol, Ctr Spintron Res, Seoul 136791, South Korea.
[Kioseoglou, G.; Hanbicki, A. T.; van't Erve, O. M. J.; Thompson, P. E.; Jonker, B. T.] USN, Res Lab, Washington, DC 20375 USA.
[Kioseoglou, G.] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Crete, Greece.
RP Jansen, R (reprint author), Univ Twente, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands.
RI Dash, Saroj/G-5225-2010;
OI Min, Byoung-Chul/0000-0001-8215-3286
FU NWO; NanoNed; Netherlands Foundation for Fundamental Research on Matter
(FOM); Office of Naval Research
FX We are grateful to R. Keim for TEM work and M. P. de Jong for help with
the deposition of Fe and tunnel oxide on spin-LED samples. We
acknowledge financial support from NWO (VIDI program), NanoNed, and the
Netherlands Foundation for Fundamental Research on Matter (FOM). The
work at NRL was supported by core programs and the Office of Naval
Research.
NR 31
TC 48
Z9 48
U1 1
U2 25
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD DEC 8
PY 2010
VL 82
IS 24
AR 241305
DI 10.1103/PhysRevB.82.241305
PG 4
WC Physics, Condensed Matter
SC Physics
GA 715PB
UT WOS:000286895300002
ER
PT J
AU Stine, R
Robinson, JT
Sheehan, PE
Tamanaha, CR
AF Stine, Rory
Robinson, Jeremy T.
Sheehan, Paul E.
Tamanaha, Cy R.
TI Real-Time DNA Detection Using Reduced Graphene Oxide Field Effect
Transistors
SO ADVANCED MATERIALS
LA English
DT Article
ID LABEL-FREE DETECTION; RESONANCE ENERGY-TRANSFER; NANOWIRE NANOSENSORS;
ELECTRICAL DETECTION; SILICON NANOWIRES; SENSORS; CARBON; HYBRIDIZATION;
GRAPHITE; ARRAYS
AB DNA sensing: Single strands of DNA are covalently attached to nanometer-thick layers of reduced graphene oxide, forming an FET device capable of sensitive, label-free detection of complementary DNA hybridization.
C1 [Stine, Rory; Robinson, Jeremy T.; Sheehan, Paul E.; Tamanaha, Cy R.] USN, Res Lab, Washington, DC 20375 USA.
RP Tamanaha, CR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM cy.tamanaha@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Yang, Zengchao/H-3884-2011; Stine,
Rory/C-6709-2013; Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU ONR; NRL's Nanoscience Institute; Defense Threat Reduction Agency Joint
Science and Technology Office for Chemical and Biological Defense
[BRC07-N-2-0049]
FX R.S. is an employee of Nova Research, Inc., 1900 Elkin St., Alexandria,
VA. We would like to acknowledge ONR, NRL's Nanoscience Institute, and
the Defense Threat Reduction Agency Joint Science and Technology Office
for Chemical and Biological Defense (Grant No. BRC07-N-2-0049) for
funding.
NR 34
TC 82
Z9 82
U1 7
U2 110
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 DEC 7
PY 2010
VL 22
IS 46
BP 5297
EP 5300
DI 10.1002/adma.201002121
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 695TZ
UT WOS:000285396800014
PM 20872408
ER
PT J
AU Barry, MA
Boudreau, BP
Johnson, BD
Reed, AH
AF Barry, M. A.
Boudreau, B. P.
Johnson, B. D.
Reed, A. H.
TI First-order description of the mechanical fracture behavior of
fine-grained surficial marine sediments during gas bubble growth
SO JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
LA English
DT Article
ID ECKERNFORDE BAY; MUDDY SEDIMENTS; METHANE; POCKMARKS; GELATIN; ASCENT;
CRACK; SOIL
AB Bubbles in sediments, imaged via Computed Tomography (CT) scanning, and in surrogate transparent material (gelatin), are well-described geometrically as eccentric oblate spheroids. While sediments are undoubtedly visco-elasto-plastic solids, only part of that complex behavior appears to influence significantly the formation and shape of gas bubbles. Specifically, the shape of these bubbles can be explained if the mechanical response of fine-grained sediment is approximated by Linear Elastic Fracture Mechanics (LEFM). To determine the adequacy of the LEFM approximation for gas bubble growth in fine-grained sediments, a number of gas bubbles were injected and grown in natural sediments, while monitoring the size and shape using an industrial CT scanner. A comparison of measured inverse aspect ratios (IARs) of the injected bubbles with calculated IARs from pressure records provides support for the LEFM theory. Deviations from LEFM are observable in the data, but as bubbles grow larger they trend more closely toward the theory. The use of LEFM has been shown to describe gas bubble growth in shallow coastal sediments to first order.
C1 [Barry, M. A.; Boudreau, B. P.; Johnson, B. D.] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada.
[Reed, A. H.] USN, Res Lab, Stennis Space Ctr, Stennis Space Ctr, MS 39529 USA.
RP Barry, MA (reprint author), Dalhousie Univ, Dept Oceanog, 1355 Oxford St, Halifax, NS B3H 4J1, Canada.
EM barrym@dal.ca
FU US Office of Naval Research [N00014-05-1-175, N00014-08-1-0818]; NSERC;
NRL [0601153N]
FX We gratefully acknowledge support for this work by the US Office of
Naval Research under Grants N00014-05-1-175 and N00014-08-1-0818 and a
NSERC Discovery Grant to BPB. The CT-scanning work was also supported by
NRL Base Funding, PE#0601153N. We thank the anonymous reviewers for
their critical, but enlightening comments.
NR 33
TC 16
Z9 16
U1 2
U2 12
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-EARTH
JI J. Geophys. Res.-Earth Surf.
PD DEC 7
PY 2010
VL 115
AR F04029
DI 10.1029/2010JF001833
PG 10
WC Geosciences, Multidisciplinary
SC Geology
GA 693XL
UT WOS:000285258600001
ER
PT J
AU Bermudez, VM
AF Bermudez, V. M.
TI Effect of Humidity on the Interaction of Dimethyl Methylphosphonate
(DMMP) Vapor with SiO2 and Al2O3 Surfaces, Studied Using Infrared
Attenuated Total Reflection Spectroscopy
SO LANGMUIR
LA English
DT Article
ID ASSEMBLED ALKANETHIOLATE MONOLAYERS; MOLECULAR-DYNAMICS SIMULATIONS;
ALUMINUM-OXIDE SURFACES; H/D ISOTOPIC DILUTION; THIN-FILM WATER;
ALPHA-AL2O3 0001; SILICA SURFACES; METAL-OXIDES; VIBRATIONAL-SPECTRA;
ROOM-TEMPERATURE
AB Infrared attenuated total reflection spectroscopy has been used to study the interaction of DMMP vapor with SiO2, Al2O3, and AlO(OH) vs relative humidity (RH) and DMMP partial pressure (P/P-0). For SiO2 the growth with increasing RH once-like and liquid-like layers is seen in agreement with previous work. H <-> D exchange during exposure to H2O and D2O indicates that the ice-like layer is more resistant to exchange, consistent with stronger H-bonding than in the liquid-like layer. Exposure of nominally dry SiO2 to D2O indicates the existence of adsorbed H2O that does not exhibit an spectrum. The ice-like layer appears only at a finite RH. Exposure of SiO2 to DMMP in the absence of intentionally added H2O shows the formation of a strongly bound molecular species followed by a liquid-like layer. The strong interaction involves SiO-H center dot center dot center dot O=P bonds to surface silanols and/or HO-H center dot center dot center dot O=P bonds to preadsorbed molecular H2O. At a finite RH the ice-like layer forms on SiO2 even in the presence of DMMP up to P/P-0 = 0.30. DMMP does no: appear to penetrate the ice-like layer under these conditions, and the tendency to form a such a layer drives the displacement of DM MP. Amorphous Al2O3 and AlO(OH) do not exhibit an ice-like H2O layer. Both have a higher surface OH content than does SiO2, which leads to higher coverages of H2O or DM MP at equivalent RH or P/P-0. At low P/P-0, for which adsorption is dominated by Al-OH center dot center dot center dot O=P bonding, a-Al2O3 interacts with DM MP more strongly than does AlO(OH) as a result of the higher acidity of OH sites on the former. Up to RH = 0.30 and P/P-0 = 0.30, DMMP appears to remain bonded to the surface rather than being displaced by H2O. H2O appears to have little or no effect on the total amount of DMMP adsorbed on any of these surfaces, up to an RH of 0.30 and a P/P-0 of 0.30. The results have implications for the transport of DMMP and related molecules on oxide surfaces in the environment.
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Bermudez, VM (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM victor.bermudez@nrl.navy.mil
FU Defense Threat Reduction Agency (DTRA) [TAS-CBS.FATE.03.10.NRL.001]
FX This work was funded and supported by contract
TAS-CBS.FATE.03.10.NRL.001 from the Defense Threat Reduction Agency
(DTRA). D. E. Tevault is thanked for several helpful communications. A.
Snow is thanked for help with the contact angle measurements, D.Y.
Petrovykh for help with the XPS measurements and E. E. Foos and K. D.
Hobart for providing the UV/O3 facilities. F. K. Perkins is
thanked for growing the thermal SiO2 film.
NR 89
TC 22
Z9 23
U1 1
U2 31
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD DEC 7
PY 2010
VL 26
IS 23
BP 18144
EP 18154
DI 10.1021/la103381r
PG 11
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 686XM
UT WOS:000284732300055
PM 21069963
ER
PT J
AU Lee, ZP
Ahn, YH
Mobley, C
Arnone, R
AF Lee, ZhongPing
Ahn, Yu-Hwan
Mobley, Curtis
Arnone, Robert
TI Removal of surface-reflected light for the measurement of remote-sensing
reflectance from an above-surface platform
SO OPTICS EXPRESS
LA English
DT Article
ID OCEAN COLOR; IN-WATER; OPTIMIZATION; VALIDATION; SYSTEM; MODEL
AB Using hyperspectral measurements made in the field, we show that the effective sea-surface reflectance rho (defined as the ratio of the surface-reflected radiance at the specular direction corresponding to the downwelling sky radiance from one direction) varies not only for different measurement scans, but also can differ by a factor of 8 between 400 nm and 800 nm for the same scan. This means that the derived water-leaving radiance (or remote-sensing reflectance) can be highly inaccurate if a spectrally constant rho value is applied (although errors can be reduced by carefully filtering measured raw data). To remove surface-reflected light in field measurements of remote sensing reflectance, a spectral optimization approach was applied, with results compared with those from remote-sensing models and from direct measurements. The agreement from different determinations suggests that reasonable results for remote sensing reflectance of clear blue water to turbid brown water are obtainable from above-surface measurements, even under conditions of high waves. (C)2010 Optical Society of America
C1 [Lee, ZhongPing] Mississippi State Univ, Geosyst Res Inst, Stennis Space Ctr, MS 39529 USA.
[Ahn, Yu-Hwan] Korea Ocean Res & Dev Inst Ansan, Ansan 425600, South Korea.
[Mobley, Curtis] Sequoia Sci Inc, Bellevue, WA 98005 USA.
[Arnone, Robert] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Lee, ZP (reprint author), Mississippi State Univ, Geosyst Res Inst, Stennis Space Ctr, MS 39529 USA.
EM zplee@ngi.msstate.edu
FU Naval Research Laboratory; Northern Gulf Institute; NASA; U. S. Office
of Naval Research
FX We are grateful for the financial support provided by the Naval Research
Laboratory (Z.-P. Lee and R. Arnone), the Northern Gulf Institute (Z.-P.
Lee), the Water Cycle and Energy and Ocean Biology and Biogeochemistry
Programs of NASA (Z.-P. Lee), and the Environmental Optics Program of
the U. S. Office of Naval Research (C. D. Mobley). The comments and
suggestions from the two anonymous reviewers are greatly appreciated.
NR 27
TC 46
Z9 47
U1 3
U2 14
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 DEC 6
PY 2010
VL 18
IS 25
BP 26313
EP 26324
DI 10.1364/OE.18.026313
PG 12
WC Optics
SC Optics
GA 700NE
UT WOS:000285749500089
PM 21164981
ER
PT J
AU Harlander, JM
Englert, CR
Babcock, DD
Roesler, FL
AF Harlander, John M.
Englert, Christoph R.
Babcock, David D.
Roesler, Frederick L.
TI Design and laboratory tests of a Doppler Asymmetric Spatial Heterodyne
(DASH) interferometer for upper atmospheric wind and temperature
observations
SO OPTICS EXPRESS
LA English
DT Article
ID RESEARCH SATELLITE; SPECTROSCOPY
AB We describe the design, fabrication and laboratory tests of a Doppler Asymmetric Spatial Heterodyne (DASH) interferometer for upper atmospheric wind and temperature observations of the O[(1)D] 630 nm emission. The monolithic interferometer has no moving parts, a large etendue, relaxed fabrication and alignment tolerances and can measure multiple emission lines simultaneously. Laboratory measurements indicate that the design resolution and etendue were achieved and that thermal drifts can be determined with sufficient precision for geophysical applications. (C) 2010 Optical Society of America
C1 [Harlander, John M.] St Cloud State Univ, Dept Phys Astron & Engn Sci, St Cloud, MN 56301 USA.
[Englert, Christoph R.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Babcock, David D.] Artep Inc, Ellicott City, MD 21042 USA.
[Roesler, Frederick L.] Univ Wisconsin Madison, Dept Phys, Madison, WI USA.
RP Harlander, JM (reprint author), St Cloud State Univ, Dept Phys Astron & Engn Sci, 720 4th Ave S, St Cloud, MN 56301 USA.
EM jmharlander@stcloudstate.edu
OI Englert, Christoph/0000-0002-2145-6168
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. The authors
would like to thank Ian Miller and Vaz Zastera of LightMachinery, Ronen
Feldman, Andrew N. Straatveit, John F. Moser, W. Layne Marlin, Patrick
B. Bell, and Brody Fuchs for their contributions to this work.
NR 10
TC 19
Z9 19
U1 2
U2 13
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 DEC 6
PY 2010
VL 18
IS 25
BP 26430
EP 26440
DI 10.1364/OE.18.026430
PG 11
WC Optics
SC Optics
GA 700NE
UT WOS:000285749500101
PM 21164993
ER
PT J
AU Sanghera, J
Florea, C
Busse, L
Shaw, B
Miklos, F
Aggarwal, I
AF Sanghera, Jasbinder
Florea, Catalin
Busse, Lynda
Shaw, Brandon
Miklos, Fritz
Aggarwal, Ishwar
TI Reduced Fresnel losses in chalcogenide fibers by using anti-reflective
surface structures on fiber end faces
SO OPTICS EXPRESS
LA English
DT Article
ID FABRICATION; GRATINGS; OPTICS
AB We demonstrate microstructuring of chalcogenide fiber end faces in order to obtain enhanced transmission due to the antireflective properties of the microstructured surfaces. A variety of molding approaches have been investigated for As(2)S(3) and As(2)Se(3) fibers. Transmission as high as 97% per facet was obtained in the case of As(2)S(3) fiber, compared to the native, Fresnel-loss limited, transmission of 83%. The potential for hydrophobic character was also demonstrated by increasing the contact angle of water droplets to greater than 120 degrees. (C) 2010 Optical Society of America
C1 [Sanghera, Jasbinder; Busse, Lynda; Shaw, Brandon; Aggarwal, Ishwar] USN, Res Lab, Washington, DC 20375 USA.
[Florea, Catalin; Miklos, Fritz] GTEC Inc, Crofton, MD 21114 USA.
RP Sanghera, J (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM sanghera@nrl.navy.mil
FU Joint Aircraft Survivability Program Office; Test Resource Management
Center
FX We thank TelAztec, Inc. for suggesting the design and providing the
shim. Funding for this work was provided by the Joint Aircraft
Survivability Program Office and the Test Resource Management Center
through the Science and Technology/Test and Evaluation Program.
NR 17
TC 33
Z9 33
U1 2
U2 23
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 DEC 6
PY 2010
VL 18
IS 25
BP 26760
EP 26768
DI 10.1364/OE.18.026760
PG 9
WC Optics
SC Optics
GA 700NE
UT WOS:000285749500134
PM 21165026
ER
PT J
AU Tischler, JG
Kennedy, TA
Glaser, ER
Efros, AL
Foos, EE
Boercker, JE
Zega, TJ
Stroud, RM
Erwin, SC
AF Tischler, J. G.
Kennedy, T. A.
Glaser, E. R.
Efros, Al L.
Foos, E. E.
Boercker, J. E.
Zega, T. J.
Stroud, R. M.
Erwin, S. C.
TI Band-edge excitons in PbSe nanocrystals and nanorods
SO PHYSICAL REVIEW B
LA English
DT Article
ID CDSE QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; MAGNETIC-RESONANCE;
FINE-STRUCTURE; LEAD SELENIDE; OPTICAL GAIN; EMISSION;
PHOTOLUMINESCENCE; GENERATION; BRIGHT
AB We investigate the fine structure of band-edge excitons in PbSe nanocrystals and nanorods using circularly polarized magnetophotoluminescence and optically detected magnetic resonance and, based on the results, propose a singlet-triplet model of exciton photoluminescence from nondegenerate conduction and valence bands. From the data and model we extract g-factors for electrons and holes of +1.2 and +0.8, respectively. The splitting of the triplet ground state, which is responsible for the low-temperature photoluminescence, is 88 mu eV for nanorods, and less than 20 mu eV for nanocrystals. The intervalley splitting of the electron and hole levels in the nanocrystals is much larger than the electron-hole exchange interaction.
C1 [Tischler, J. G.; Kennedy, T. A.; Glaser, E. R.; Efros, Al L.; Foos, E. E.; Boercker, J. E.; Zega, T. J.; Stroud, R. M.; Erwin, S. C.] USN, Res Lab, Washington, DC 20375 USA.
RP Tischler, JG (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Stroud, Rhonda/C-5503-2008
OI Stroud, Rhonda/0000-0001-5242-8015
FU National Research Council; Office of Naval Research (ONR)
FX J.E.B acknowledges the National Research Council post-doctoral program,
while the Office of Naval Research (ONR) is gratefully acknowledged for
financial support of this work.
NR 37
TC 22
Z9 22
U1 1
U2 36
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD DEC 6
PY 2010
VL 82
IS 24
AR 245303
DI 10.1103/PhysRevB.82.245303
PG 6
WC Physics, Condensed Matter
SC Physics
GA 715OT
UT WOS:000286894500004
ER
PT J
AU Liu, HL
Foster, BT
Hagan, ME
McInerney, JM
Maute, A
Qian, L
Richmond, AD
Roble, RG
Solomon, SC
Garcia, RR
Kinnison, D
Marsh, DR
Smith, AK
Richter, J
Sassi, F
Oberheide, J
AF Liu, H. -L.
Foster, B. T.
Hagan, M. E.
McInerney, J. M.
Maute, A.
Qian, L.
Richmond, A. D.
Roble, R. G.
Solomon, S. C.
Garcia, R. R.
Kinnison, D.
Marsh, D. R.
Smith, A. K.
Richter, J.
Sassi, F.
Oberheide, J.
TI Thermosphere extension of the Whole Atmosphere Community Climate Model
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID GENERAL-CIRCULATION MODEL; STRATOSPHERIC WARMING EVENT; NONMIGRATING
DIURNAL TIDES; CHEMICAL-TRANSPORT MODEL; MIGRATING SOLAR TIDES; MIDDLE
ATMOSPHERE; PLANETARY-WAVES; GRAVITY-WAVE; SEASONAL-VARIATION; TIDAL
VARIABILITY
AB In atmospheric and space environment studies it is key to understand and to quantify the coupling of atmospheric regions and the solar impacts on the whole atmosphere system. There is thus a need for a numerical model that encompasses the whole atmosphere and can self-consistently simulate the dynamic, physical, chemical, radiative, and electrodynamic processes that are important for the Sun-Earth system. This is the goal for developing the National Center for Atmospheric Research (NCAR) Whole Atmosphere Community Climate Model (WACCM). In this work, we report the development and preliminary validation of the thermospheric extension of WACCM (WACCM-X), which extends from the Earth's surface to the upper thermosphere. The WACCM-X uses the finite volume dynamical core from the NCAR Community Atmosphere Model and includes an interactive chemistry module resolving most known neutral chemistry and major ion chemistry in the middle and upper atmosphere, and photolysis and photoionization. Upper atmosphere processes, such as nonlocal thermodynamic equilibrium, radiative transfer, auroral processes, ion drag, and molecular diffusion of major and minor species, have been included in the model. We evaluate the model performance by examining the quantities essential for the climate and weather of the upper atmosphere: the mean compositional, thermal, and wind structures from the troposphere to the upper thermosphere and their variability on interannual, seasonal, and daily scales. These quantities are compared with observational and previous model results.
C1 [Liu, H. -L.; Foster, B. T.; Hagan, M. E.; McInerney, J. M.; Maute, A.; Qian, L.; Richmond, A. D.; Roble, R. G.; Solomon, S. C.] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA.
[Garcia, R. R.; Kinnison, D.; Marsh, D. R.; Smith, A. K.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
[Oberheide, J.] Clemson Univ, Dept Phys & Astron, Clemson, SC 29631 USA.
[Sassi, F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Liu, HL (reprint author), Natl Ctr Atmospher Res, High Altitude Observ, POB 3000, Boulder, CO 80307 USA.
EM liuh@ucar.edu
RI Liu, Han-Li/A-9549-2008; Oberheide, Jens/C-6156-2011; Solomon,
Stanley/J-4847-2012; Qian, Liying/D-9236-2013; Marsh,
Daniel/A-8406-2008; Hagan, Maura/C-7200-2008;
OI Liu, Han-Li/0000-0002-6370-0704; Oberheide, Jens/0000-0001-6721-2540;
Solomon, Stanley/0000-0002-5291-3034; Qian, Liying/0000-0003-2430-1388;
Sassi, Fabrizio/0000-0002-9492-7434; Marsh, Daniel/0000-0001-6699-494X;
Hagan, Maura/0000-0002-8866-7429; Richmond, Arthur/0000-0002-6708-1023
FU Office of Naval Research [N00014-07-C-0209]; National Science Foundation
[ATM-0535466, ATM-0836386]; NASA [NNX09AJ83G]; DFG [OB 299/2-3]
FX This work is in part supported by the Office of Naval Research
(N00014-07-C-0209), National Science Foundation CEDAR grants ATM-0535466
and ATM-0836386, and NASA LWS Strategic Capability grant NNX09AJ83G.
J.O. was supported by the DFG through its CAWSES program, grant OB
299/2-3. The National Center for Atmospheric Research is sponsored by
the National Science Foundation.
NR 122
TC 57
Z9 57
U1 0
U2 10
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD DEC 4
PY 2010
VL 115
AR A12302
DI 10.1029/2010JA015586
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 690QT
UT WOS:000285020000008
ER
PT J
AU Arrowsmith, SJ
Johnson, JB
Drob, DP
Hedlin, MAH
AF Arrowsmith, Stephen J.
Johnson, Jeffrey B.
Drob, Douglas P.
Hedlin, Michael A. H.
TI THE SEISMOACOUSTIC WAVEFIELD: A NEW PARADIGM IN STUDYING GEOPHYSICAL
PHENOMENA
SO REVIEWS OF GEOPHYSICS
LA English
DT Review
ID MOUNT-ST-HELENS; ATMOSPHERE RESEARCH SATELLITE; COUPLED AIR WAVES; ART.
NO. 1003; ALASKAN EARTHQUAKE; STROMBOLI-VOLCANO; INFRASONIC
OBSERVATIONS; ACOUSTIC MEASUREMENTS; INFORMATION-CONTENT; LOWER
THERMOSPHERE
AB The field of seismoacoustics is emerging as an important discipline in its own right, owing to the value of colocated seismic and infrasound arrays that sample elastic energy propagating in both the solid Earth and the atmosphere. The fusion of seismic and infrasonic data provides unique constraints for studying a broad range of topics including the source physics of natural and man-made events, interaction of mechanical waves in Earth's crust and atmosphere, source location and characterization, and inversion of atmospheric and shallow subsurface properties. This review article traces the seismoacoustic wavefield from source to receiver. Beginning at the source, we review the latest insights into the physics of natural and anthropogenic sources that have arisen from the analysis of seismoacoustic data. Next, a comparative review of 3-D models of the atmosphere and solid Earth and the latest algorithms for modeling the propagation of mechanical waves through these media provides the framework for a discussion of the seismoacoustic path. The optimal measurement of seismic and acoustic waves, including a discussion of instrumentation, as well as of array configurations and regional networks, is then outlined. Finally, we focus on broad research applications where the analysis of seismoacoustic data is starting to yield important new results, such as in the field of nuclear explosion monitoring. This review is intended to provide a primer on the field of seismoacoustics for seismologists or acousticians, while also providing a more general review of what constraints seismoacoustics can uniquely provide for understanding geophysical phenomena.
C1 [Arrowsmith, Stephen J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Drob, Douglas P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hedlin, Michael A. H.] Univ Calif San Diego, Lab Atmospher Acoust, Inst Geophys & Planetary Phys, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Johnson, Jeffrey B.] New Mexico Inst Min & Technol, Dept Earth & Environm Sci, Socorro, NM 87801 USA.
RP Arrowsmith, SJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM arrows@lanl.gov
RI Drob, Douglas/G-4061-2014
OI Drob, Douglas/0000-0002-2045-7740
NR 167
TC 24
Z9 24
U1 0
U2 14
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 8755-1209
EI 1944-9208
J9 REV GEOPHYS
JI Rev. Geophys.
PD DEC 4
PY 2010
VL 48
AR RG4003
DI 10.1029/2010RG000335
PG 23
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 690PY
UT WOS:000285017900001
ER
PT J
AU Griva, I
Schnur, JM
Lebedev, N
AF Griva, Igor
Schnur, Joel M.
Lebedev, Nikolai
TI The Role of Electrode Curvature in Controlling Electron Transfer between
the Photosynthetic Reaction Center Protein and Gold Nanoelectrodes
SO CHEMPHYSCHEM
LA English
DT Article
DE bioinorganic interfaces; electron transfer; nanostructures;
photosynthesis; proteins
ID RHODOBACTER-SPHAEROIDES R-26; CYTOCHROME C(2)
C1 [Lebedev, Nikolai] USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
[Griva, Igor] George Mason Univ, Dept Math & Computat, Fairfax, VA 22030 USA.
[Griva, Igor] George Mason Univ, Dept Data Sci, Fairfax, VA 22030 USA.
[Schnur, Joel M.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP Lebedev, N (reprint author), USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
EM nikolai.lebedev@nrl.navy.mil
FU DARPA; AFOSR; ONR through NRL
FX We gratefully acknowledge the support of this work by DARPA, AFOSR, and
ONR through NRL base programs.
NR 17
TC 2
Z9 2
U1 0
U2 5
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1439-4235
J9 CHEMPHYSCHEM
JI ChemPhysChem
PD DEC 3
PY 2010
VL 11
IS 17
BP 3589
EP 3591
DI 10.1002/cphc.201000643
PG 3
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 693WU
UT WOS:000285256900004
PM 20973026
ER
PT J
AU Nguyen, VC
Chen, L
Klaus, H
AF Viet Cuong Nguyen
Chen, Lang
Klaus, Halterman
TI Total Transmission and Total Reflection by Zero Index Metamaterials with
Defects
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID REFRACTION; SCATTERING; NIHILITY; LIGHT
AB We theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave can be achieved. The proposed defect structure can offer advances in shielding or cloaking technologies without restricting the object's viewpoint. Active control of the observed exotic transmission and reflection signatures can occur by incorporating tunable refractive index materials such as liquid crystals and BaSrTiO(3).
C1 [Viet Cuong Nguyen; Chen, Lang] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore.
[Klaus, Halterman] USN, Air Warfare Ctr, Div Phys, Res & Intelligence Dept, China Lake, CA 93555 USA.
RP Nguyen, VC (reprint author), Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore.
EM langchen@ntu.edu.sg
RI CHEN, LANG/A-2251-2011; Halterman, Klaus/G-3826-2012;
OI Nguyen, Viet Cuong/0000-0003-1145-5652; Halterman,
Klaus/0000-0002-6355-3134
FU NTU; ONR; HPC as part of the DOD HPCMP
FX L. C. acknowledges support from NTU. K. H. is supported in part by ONR
and by a grant of HPC resources as part of the DOD HPCMP and would like
to thank J. Martin for useful discussions.
NR 26
TC 122
Z9 123
U1 15
U2 86
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 DEC 3
PY 2010
VL 105
IS 23
AR 233908
DI 10.1103/PhysRevLett.105.233908
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 713KL
UT WOS:000286736800010
PM 21231467
ER
PT J
AU Oppenheim, KC
Korter, TM
Melinger, JS
Grischkowsky, D
AF Oppenheim, Keith C.
Korter, Timothy M.
Melinger, Joseph S.
Grischkowsky, Daniel
TI Solid-State Density Functional Theory Investigation of the Terahertz
Spectra of the Structural Isomers 1,2-Dicyanobenzene and
1,3-Dicyanobenzene
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID SPECTROSCOPY; ABSORPTION; CRYSTAL
AB The high-resolution waveguide terahertz (THz) time-domain spectra (20-100 cm(-1)) of the two structural isomers 1 2-dicyanobenzene (1 2-DCB) and 1 3-dicyanobenzene (1 3 DCB) have been modeled and assigned using solid-state density functional theory The THz spectra of these similar molecules are distinctly different in the low-frequency region with the differences being driven by modifications of the crystal packing arrangement between the isomers Simulations utilizing the hybrid density functionals B3LYP and PBE0 were performed to determine the origins of the observed vibrational features External lattice vibrations (hindered translations and rotations) are found to dominate these spectra reinforcing the need for proper solid-state models in the analysis of the THz spectra of organic molecular solids These calculations wet e able to account for all of the observed spectral features exhibited by both Isomers even in the case of 1 2-DCB where the spectrum was found to be the result of two coexisting crystalline polymorphs
C1 [Oppenheim, Keith C.; Korter, Timothy M.] Syracuse Univ, Dept Chem, Syracuse, NY 13244 USA.
[Melinger, Joseph S.] USN, Res Lab, Washington, DC 20375 USA.
[Grischkowsky, Daniel] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA.
RP Korter, TM (reprint author), Syracuse Univ, Dept Chem, Syracuse, NY 13244 USA.
FU Syracuse University; Defense Threat Reduction Agency [09 2438M];
National Science Foundation [CHE 084705]
FX The authors gratefully acknowledge support from Syracuse University the
National Science Foundation CAREER Program (CHE 084705) and the Defense
Threat Reduction Agency (09 2438M)
NR 21
TC 30
Z9 32
U1 3
U2 16
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 DEC 2
PY 2010
VL 114
IS 47
BP 12513
EP 12521
DI 10.1021/jp107597q
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 683EP
UT WOS:000284454800019
PM 21049898
ER
PT J
AU Meyerson, MD
Kidwell, ME
AF Meyerson, M. D.
Kidwell, M. E.
TI A Euclidean Path
SO AMERICAN MATHEMATICAL MONTHLY
LA English
DT Letter
C1 [Meyerson, M. D.; Kidwell, M. E.] USN Acad, Annapolis, MD 21402 USA.
RP Meyerson, MD (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU MATHEMATICAL ASSOC AMER
PI WASHINGTON
PA 1529 18TH STREET NW, WASHINGTON, DC 20036 USA
SN 0002-9890
EI 1930-0972
J9 AM MATH MON
JI Am. Math. Mon.
PD DEC
PY 2010
VL 117
IS 10
BP 929
EP 931
PG 3
WC Mathematics
SC Mathematics
GA 748HX
UT WOS:000289382800010
ER
PT J
AU Gowing, S
Mori, T
Neely, S
AF Gowing, S.
Mori, T.
Neely, S.
TI Research on Two Phase Waterjet Nozzles
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
ID MASS
AB Air-augmented waterjets derive their propulsion from compressed gas mixed directly into the main flow. The gas bubbles expand as the mixture passes through the pressure gradient of the convergent nozzle, and energy is imparted to the water from the air in a complex fashion. This experiment measures the exchange of air and water energy for three nozzles over a range of flowrares and void fractions using compressed air injected and mixed upstream of the nozzle entrance. Pressures and nozzle thrust are measured to examine flow changes. The results are compared with predictions from a one-dimensional bubbly flow model. The measured efficiencies are lower than or comparable to predicted values. [DOI: 10.1115/1.4002999]
C1 [Gowing, S.; Neely, S.] USN, Carderock Div, Ctr Surface Warfare, Bethesda, MD 20817 USA.
[Mori, T.] Minist Def, Tech Res & Dev Inst, Tokyo 1628801, Japan.
RP Gowing, S (reprint author), USN, Carderock Div, Ctr Surface Warfare, Bethesda, MD 20817 USA.
EM scott.gowing@navy.mil; tymori@castle.ocn.ne.jp; stephen.neely@navy.mil
FU U.S. Office of Naval Research
FX This work was funded by the U.S. Office of Naval Research under the
technical guidance of Dr. Ki-Han Kim. The participation of Dr. Takayuki
Mori was made possible through the Engineer and Scientist Exchange
Program of the U.S. Department of the Navy International Programs Office
(NIPO). Robert J. Etter, NSWCCD, served as the Host Establishment ESEP
Contact Officer, 2006-2007.
NR 19
TC 0
Z9 0
U1 0
U2 12
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0098-2202
J9 J FLUID ENG-T ASME
JI J. Fluids Eng.-Trans. ASME
PD DEC
PY 2010
VL 132
IS 12
AR 121302
DI 10.1115/1.4002999
PG 9
WC Engineering, Mechanical
SC Engineering
GA 716WC
UT WOS:000287003200010
ER
PT J
AU Maximenko, SI
Messenger, SR
Cress, CD
Freitas, JA
Walters, RJ
AF Maximenko, S. I.
Messenger, S. R.
Cress, C. D.
Freitas, J. A., Jr.
Walters, Robert J.
TI Application of CL/EBIC-SEM Techniques for Characterization of Radiation
Effects in Multijunction Solar Cells
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Cathodoluminescence (CL); electron beam induced current (EBIC);
irradiation damage; multijunction (MJ) solar cells; scanning electron
microscopy (SEM)
ID NONIONIZING ENERGY-LOSS; DEVICE APPLICATIONS; IRRADIATION;
SEMICONDUCTORS; PROTONS; SPACE; DEGRADATION; DEFECTS
AB We report the results of the characterization of irradiated InGaP2/GaAs/Ge multijunction (MJ) solar cells using the cathodoluminescence (CL) imaging/spectroscopy and electron beam induced current (EBIC) modes of scanning electron microscopy (SEM). These techniques were applied to verify the influence of irradiation damage on the optoelectronic properties of each subcell in the monolithic MJ structure and correlate them with the illuminated (AM0, 1 sun, 25 degrees C) current-voltage (I-V) and quantum efficiency (QE) measurements. Minority carrier lifetime degradation data from CL measurements confirm that the GaAs subcell dominates the overall degradation of the 3J device. Also, a carrier removal mechanism in the GaAs subcell was revealed from the EBIC/CL measurements.
C1 [Maximenko, S. I.] Global Def Technol & Syst Inc, Crofton, MD 21114 USA.
[Messenger, S. R.; Cress, C. D.; Freitas, J. A., Jr.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
RP Maximenko, SI (reprint author), Global Def Technol & Syst Inc, Crofton, MD 21114 USA.
EM scream@nrl.navy.mil
RI Cress, Cory/A-8673-2009;
OI Cress, Cory/0000-0001-7563-6693
FU Office of Naval Research
FX This work was supported in part by the Office of Naval Research.
NR 21
TC 7
Z9 7
U1 2
U2 22
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3095
EP 3100
DI 10.1109/TNS.2010.2083691
PN 1
PG 6
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200013
ER
PT J
AU Khine, YY
Creamer, DB
Finette, S
AF Khine, Yu Yu
Creamer, Dennis B.
Finette, Steven
TI ACOUSTIC PROPAGATION IN AN UNCERTAIN WAVEGUIDE ENVIRONMENT USING
STOCHASTIC BASIS EXPANSIONS
SO JOURNAL OF COMPUTATIONAL ACOUSTICS
LA English
DT Article
DE Random media; uncertainty; acoustic propagation; polynomial chaos
ID GENERALIZED POLYNOMIAL CHAOS; LARGE RANDOMNESS; EQUATIONS; MODELS
AB A generalization of acoustic propagation in an uncertain ocean waveguide environment is described using a probabilistic formulation in terms of stochastic basis expansions. The problem is studied in the context of wave propagation in random media, where environmental uncertainty and its interaction with the acoustic field are described by stochastic, rather than deterministic parameters and fields. This representation, constructed explicitly in terms of Karhunen-Loeve (KL) and polynomial chaos (PC) expansions, leads to coupled differential equations for the expansion coefficients from which the stochastic acoustic field can be obtained as a random process. The equations are solved in the narrow-angle parabolic approximation using a split-step method to compute moments of the random acoustic field at any point in the waveguide. Results are compared with Monte-Carlo computations of the acoustic field in the same environment to study the convergence of the truncated stochastic basis expansion representing the acoustic field. The rate of convergence of the truncated chaos expansion was found to be dependent on the particular moment computed. For the first and second moments corresponding to the mean field and the field intensity, convergence was achieved rapidly, only requiring low order expansions. Another second moment, the acoustic spatial coherence, converged more slowly due to the relative phase information that, in this formulation, is described by polynomial approximation. While stochastic basis expansions show promise for the development of compact representations of the acoustic field in the presence of environmental uncertainty, accelerated convergence schemes will be needed to allow for practical applications.
C1 [Khine, Yu Yu; Creamer, Dennis B.; Finette, Steven] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
RP Finette, S (reprint author), USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
EM yuyu.khine.ctr@nrl.navy.mil; db_creamer@yahoo.com;
steven.finette@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by funding from the Office of Naval Research.
NR 26
TC 13
Z9 17
U1 0
U2 6
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-396X
J9 J COMPUT ACOUST
JI J. Comput. Acoust.
PD DEC
PY 2010
VL 18
IS 4
BP 397
EP 441
DI 10.1142/S0218396X10004255
PG 45
WC Acoustics; Mathematics, Interdisciplinary Applications
SC Acoustics; Mathematics
GA 700ZH
UT WOS:000285783600005
ER
PT J
AU Namazi, NM
Scharpf, WJ
Obermark, J
Caron, JN
AF Namazi, Nader M.
Scharpf, William J.
Obermark, Jerome
Caron, James N.
TI Global registration and moving objects detection in noisy airborne image
sequences
SO OPTICAL ENGINEERING
LA English
DT Article
DE image motion estimation and global registration; EM algorithm;
least-squares estimation; affine motion; maximum likelihood detection
ID MOTION ESTIMATION
AB This paper presents a method for registration of noisy airborne images for the purpose of the detection of moving objects. A new iterative algorithm is developed and presented for the correction of geometrical distortion caused by global motion in a scene. A binary hypotheses test is subsequently established using a likelihood ratio test (LRT) to classify the pixels in the corrected image as either locally moving (object motion) or not moving (stationary). The paper also incorporates the use of the Expectation-Maximization method for estimation of statistical image features needed by the LRT. We use and present experiments with real image sequences to validate the analytical developments. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3520057]
C1 [Namazi, Nader M.] Catholic Univ Amer, Dept Elect Engn & Comp Sci, Washington, DC 20064 USA.
[Scharpf, William J.] USN, Res Lab, NCST, Electroopt Sect, Washington, DC 20375 USA.
[Obermark, Jerome] DCS Corp, Alexandria, VA USA.
[Caron, James N.] Res Support Instruments, Lanham, MD USA.
RP Namazi, NM (reprint author), Catholic Univ Amer, Dept Elect Engn & Comp Sci, Washington, DC 20064 USA.
EM namazi@cua.edu
FU U. S. Naval Research Laboratory; Office of Naval Research
FX The authors would like to thank the U. S. Naval Research Laboratory and
the Office of Naval Research for support and use of facilities for this
work.
NR 16
TC 0
Z9 0
U1 1
U2 2
PU SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD DEC
PY 2010
VL 49
IS 12
AR 127005
DI 10.1117/1.3520057
PG 11
WC Optics
SC Optics
GA 700NF
UT WOS:000285749600031
ER
PT J
AU Rostkier-Edelstein, D
Hacker, JP
AF Rostkier-Edelstein, Dorita
Hacker, Joshua P.
TI The Roles of Surface-Observation Ensemble Assimilation and Model
Complexity for Nowcasting of PBL Profiles: A Factor Separation Analysis
SO WEATHER AND FORECASTING
LA English
DT Article
ID BOUNDARY-LAYER; KALMAN FILTER; MESOSCALE MODEL; CONVECTION;
PARAMETERIZATION; IMPLEMENTATION; SENSITIVITY; SIMULATION
AB Recent results showed the ability of surface-observation assimilation with a single-column model (SCM) and an ensemble filter (EF) to skillfully estimate the vertical structure of the PBL when only climatological information is provided for initialization and forcing. The present study quantifies the relative benefits of model complexity, compared to surface-observation assimilation, for making 30-min SCM ensemble predictions (nowcasts). The SCM is initialized and forced by timely mesoscale forecasts, making it capable of providing flow-dependent probabilistic very short-range forecasts of PBL profiles wherever surface observations are available. Factor separation (FS) analysis measures the relative contributions to skill from EF surface assimilation compared to selected SCM components: parameterized radiation and objectively scaled horizontal advection. Here, the SCM-EF system is presented and its deterministic skill (as represented by ensemble-mean error) is analyzed with FS. Results show that surface assimilation can more meaningfully contribute to the skill levels of temperature, wind, and mixing-ratio nowcasts than model enhancements under a wide range of flow scenarios. However, in the convective PBL regime surface assimilation can enhance the moist bias often observed in parameterized PBL mixing ratio profiles due to poor covariances estimated from the ensemble. Then, the SCM-EF proves useful in revealing a model deficiency. Externally imposed horizontal advection is required to provide skillful ensemble-mean forecasts when not assimilating surface observations, but can offset the benefit realized from assimilation by quickly sweeping the updated state out of the domain. The radiation scheme has a minor effect on forecast performance. It improves the nowcast surface temperature at night, and can act synergistically with assimilation to improve low-level jet predictions, but the effect above the surface steeply decreases with height. The results suggest that an SCM-EF may be helpful in wind-power and pollutant dispersion applications.
C1 [Rostkier-Edelstein, Dorita] Israel Inst Biol Res, IL-74100 Ness Ziona, Israel.
[Hacker, Joshua P.] USN, Postgrad Sch, Monterey, CA USA.
RP Rostkier-Edelstein, D (reprint author), Israel Inst Biol Res, POB 19, IL-74100 Ness Ziona, Israel.
EM doritar@iibr.gov.il
FU U.S. Department of Energy, Office of Science, Office of Biological and
Environmental Research, Environmental Sciences Division
FX The authors are grateful to the developers of the NCAR Data Assimilation
Research Testbed (DART) for providing a useful platform for
experimentation. We acknowledge M. Pocernich and E. Gilleland for
guidance on the R packages ("verification" and "bootstrap"; information
online at http://www.r-project.org), which were used for our
calculations. We acknowledge T. Hopson and Z. Klausner for insightful
discussions on the bootstrap technique. Two anonymous reviews improved
the accuracy of the discussion. D. Rostkier-Edelstein acknowledges the
NCAR Research Applications Laboratory visitors program. 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.
NR 31
TC 11
Z9 11
U1 0
U2 1
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0882-8156
J9 WEATHER FORECAST
JI Weather Forecast.
PD DEC
PY 2010
VL 25
IS 6
BP 1670
EP 1690
DI 10.1175/2010WAF2222435.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 702AS
UT WOS:000285867000005
ER
PT J
AU Olson, SE
Christlieb, AJ
Fatemi, FK
AF Olson, Spencer E.
Christlieb, Andrew J.
Fatemi, Fredrik K.
TI PID feedback for load-balanced parallel gridless DSMC
SO COMPUTER PHYSICS COMMUNICATIONS
LA English
DT Article
DE Load balancing; Parallel; DSMC; Gridless
ID SIMULATION MONTE-CARLO; FLOW; IMPLEMENTATION; COMPUTATIONS; TRANSITION;
DYNAMICS; REGIME; PLATE
AB Parallel code presents a non-trivial problem of load balancing computational workload throughout a system of hardware and software resources. The task of load balancing is further complicated when the number of allowable processors changes through time. This paper presents a two-component load-balancing mechanism using optimal initial workload distribution and dynamic load maintenance. The initial guess is provided by inversion of the workload distribution function. Workload distribution inversion enables efficient domain decomposition for arbitrary workloads and easily compensates for changes in system resources. Dynamic load balancing is provided by process feedback control as used, for example, in control mechanisms of physical processes. Proportional, integral, and differential (PID) feedback readily allows controls to compensate for runtime-changes of the workload distribution function. This paper demonstrates a one-dimensional realization of the ideas presented here. We apply this load-balancing technique to our gridless direct simulation Monte Carlo algorithm. We demonstrate that the method does indeed maintain uniform workload distribution across available resources as the workload and usable system resources undergo change through time. Published by Elsevier B.V.
C1 [Olson, Spencer E.] USAF, Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA.
[Christlieb, Andrew J.] Michigan State Univ, Dept Math, E Lansing, MI 48824 USA.
[Fatemi, Fredrik K.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Olson, SE (reprint author), USAF, Res Lab, Directed Energy Directorate, 3550 Aberdeen Ave SE, Kirtland AFB, NM 87117 USA.
EM olsonse@umich.edu
FU Army Research Office; Office of Naval Research [42791-PH]; National
Research Council
FX This work was partially supported by the Army Research Office and the
Office of Naval Research (Project number 42791-PH). S.E.O. was partially
supported for this work by a National Research Council research
associateship. Computational resources for this work were provided by
the Naval Research Laboratory as a part of the Defense High Performance
Computing Modernization Program.
NR 36
TC 1
Z9 1
U1 0
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0010-4655
EI 1879-2944
J9 COMPUT PHYS COMMUN
JI Comput. Phys. Commun.
PD DEC
PY 2010
VL 181
IS 12
BP 2063
EP 2071
DI 10.1016/j.cpc.2010.06.045
PG 9
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 679TX
UT WOS:000284184800016
ER
PT J
AU Huang, LL
Massa, L
AF Huang, Lulu
Massa, Lou
TI Kernel Energy Method: Drug-Target Interaction Energies for Drug Design
SO INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
LA English
DT Article; Proceedings Paper
CT 50th annual Sanibel Symposium
CY FEB 24-MAR 02, 2010
CL St. Simons Island, REP OF GEORGIA
DE drug; RNA-target; Moller-Plesset second-order; quantum mechanics;
interaction energy
ID MOLECULAR-ORBITAL METHODS; VALENCE BASIS-SETS; CRYSTAL-STRUCTURES; SITE;
ELEMENTS; COMPLEX; TDA1; RNA
AB The full power of ab initio quantum mechanics applied to obtain the interaction of drugs and their molecular targets can provide detailed energetics useful to understanding of mechanism and drug design. The computational problem is the growth in quantum computational difficulty with the number of atoms in the molecule. As biochemical molecules are often large, the computational difficulty of the full quantum problem is challenging. Two things help alleviate the difficulty, viz., (1) parallel supercomputers, and (2) quantum crystallography and the use of quantum kernels, a method well suited for parallel computation. Calculations are simplified by approximating a full molecule by smaller "kernels" of atoms. Here, it is suggested that problems of medicinal chemistry, such as the rational design of drugs, may be illuminated by the use of the ab initio quantum-mechanical kernel energy method. Example calculations within the MP2/3-21G chemical model are illustrated for three aminoglycoside drugs, which attach to ribosomal A-site RNA nucleotide targets. (C) 2010 Wiley Periodicals, Inc. Int J Quantum Chem 110: 2886-2893, 2010
C1 [Huang, Lulu] USN, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
[Massa, Lou] CUNY Hunter Coll, New York, NY 10065 USA.
[Massa, Lou] CUNY, Grad Sch, New York, NY 10065 USA.
RP Huang, LL (reprint author), USN, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
EM huang@nrl.navy.mil
FU Office of Naval Research; NIH [S06GM606654, RR-03037]
FX Contract grant sponsor: Office of Naval Research.; Contract grant
sponsor: NIH.; Contract grant number: NIGMS MBRS SCORE5 S06GM606654,
RR-03037 (National Center For Research Resources).
NR 17
TC 2
Z9 2
U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0020-7608
EI 1097-461X
J9 INT J QUANTUM CHEM
JI Int. J. Quantum Chem.
PD DEC
PY 2010
VL 110
IS 15
SI SI
BP 2886
EP 2893
DI 10.1002/qua.22846
PG 8
WC Chemistry, Physical; Mathematics, Interdisciplinary Applications;
Physics, Atomic, Molecular & Chemical
SC Chemistry; Mathematics; Physics
GA 674QI
UT WOS:000283761900017
ER
PT J
AU Royset, JO
Sato, H
AF Royset, Johannes O.
Sato, Hiroyuki
TI Route Optimization for Multiple Searchers
SO NAVAL RESEARCH LOGISTICS
LA English
DT Article
DE military operations research; search and surveillance; route planning;
mixed-integer nonlinear programing
ID INTEGER NONLINEAR PROGRAMS; CUTTING-PLANE METHOD; MOVING-TARGET;
CONSTRAINED-PATH; ALGORITHM; TRACKING; UAVS
AB We consider a discrete time-and-space route-optimization problem across a finite time horizon in which multiple searchers seek to detect one or more probabilistically moving targets. This article formulates a novel convex mixed-integer nonlinear program for this problem that generalizes earlier models to situations with multiple targets, searcher deconfliction, and target-and location-dependent search effectiveness. We present two solution approaches, one based on the cutting-plane method and the other on linearization. These approaches result in the first practical exact algorithms for solving this important problem, which arises broadly in military, rescue, law enforcement, and border patrol operations. The cutting-plane approach solves many realistically sized problem instances in a few minutes, while existing branch-and-bound algorithms fail. A specialized cut improves solution time by 50% in difficult problem instances. The approach based on linearization, which is applicable in important special cases, may further reduce solution time with one or two orders of magnitude. The solution time for the cutting-plane approach tends to remain constant as the number of searchers grows. In part, then, we overcome the difficulty that earlier solution methods have with many searchers. (C) 2010 Wiley Periodicals, Inc.dagger Naval Research Logistics 57: 701-717, 2010
C1 [Royset, Johannes O.; Sato, Hiroyuki] USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Royset, JO (reprint author), USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM joroyset@nps.edu
FU Office of Naval Research [N0001409AF00002]
FX J. O. Royset acknowledges financial support from the Office of Naval
Research under grant N0001409AF00002. The authors thank Distinguished
Professor R.K. Wood, Naval Postgraduate School, for valuable advice
during the course of this study and Professor M. Kress, Naval
Postgraduate School, for commenting on a draft of this article.
NR 38
TC 9
Z9 11
U1 2
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0894-069X
EI 1520-6750
J9 NAV RES LOG
JI Nav. Res. Logist.
PD DEC
PY 2010
VL 57
IS 8
BP 701
EP 717
DI 10.1002/nav.20432
PG 17
WC Operations Research & Management Science
SC Operations Research & Management Science
GA 679PR
UT WOS:000284173800003
ER
PT J
AU Kujawski, E
Angelis, D
AF Kujawski, Edouard
Angelis, Diana
TI Monitoring Risk Response Actions for Effective Project Risk Management
SO SYSTEMS ENGINEERING
LA English
DT Article
DE risk analysis; technical risk; risk response actions; decision tree;
risk curves; risk dependencies; correlation; risk dynamics; microscopic
analysis; Monte Carlo simulation; design of experiments
ID SYSTEMS
AB Complex projects typically involve high-consequence, project-specific risks that require detailed analysis and for which risk response actions (RRAs) need to be developed and implemented. The risk picture is dynamic. The sources and consequences of risks evolve and change over the project lifecycle; thus, it is necessary to constantly monitor risk. RRAs that do not keep pace with the changing project situation are a major cause of risk management failures. This paper extends traditional cost risk analysis from a purely macroscopic perspective by evaluating and tracking project-specific risks and RRAs at the microscopic level. The key elements of the method are (i) develop risk scenarios, (ii) model them using generalized decision trees, and (iii) quantify the risks using Monte Carlo simulation. For each risk the probability and cost values are conditional on the specific RRA and the preceding outcomes. The use of fractional factorial design provides a subset of all possible RRA combinations for efficiently determining the preferred total project RRA solution. Risk curves are generated to provide the necessary information to analyze, track, and manage the performance of the selected RRAs over time. Project managers and team leaders can use this information to dynamically manage the RRAs to keep pace with the changing project situation, thereby increasing the probability of project success in a cost-effective manner. The approach is detailed using a realistic but simplified case of a project examined first with one and then expanded to three technical risks. (C) 2009 Wiley Periodicals, Inc. Syst Eng 13: 353-368, 2010
C1 [Kujawski, Edouard] USN, Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA.
[Angelis, Diana] USN, Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA.
RP Kujawski, E (reprint author), USN, Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA.
EM eku-jawsk@nps.edu; diangeli@nps.edu
RI Caposaldo, Marica/I-8659-2014
FU Acquisition Chair of the Graduate School of Business & Public Policy at
the Naval Postgraduate School
FX The research presented in this paper was supported in part by the
Acquisition Chair of the Graduate School of Business & Public Policy at
the Naval Postgraduate School. The authors also thank the anonymous
referees whose constructive comments and suggestions helped to
substantially improve the paper.
NR 49
TC 1
Z9 2
U1 3
U2 19
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1098-1241
J9 SYSTEMS ENG
JI Syst. Eng.
PD WIN
PY 2010
VL 13
IS 4
BP 353
EP 368
DI 10.1002/sys.20154
PG 16
WC Engineering, Industrial; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 677RE
UT WOS:000284008700004
ER
PT J
AU Wang, C
AF Wang, Chong
TI Does the monitoring role of buyout houses improve discretionary accruals
quality?
SO ACCOUNTING AND FINANCE
LA English
DT Article
DE Accruals quality; Discretionary accruals quality; LBO; Reverse LBO;
Agency problem; M40; M41
ID EARNINGS MANAGEMENT; OWNERSHIP STRUCTURE; AGENCY COSTS; EQUITY; FIRM
AB Using a sample of reverse leveraged buyout ('reverse-LBO') firms, I find that discretionary accruals quality (AQ), the quality of accruals that are subject to management discretion, significantly improves from pre-LBO to post-reverse LBO. Moreover, buyout houses' board seats and the length of firms' stay-in-private periods are significant explanatory variables for the cross-sectional variation in discretionary AQ for post-reverse-LBO firms. My findings suggest that the monitoring provided by private equity buyout houses improves discretionary AQ, consistent with the view of Jensen (1989a,b) that LBOs are a solution to inefficiencies that arise from agency problems.
C1 USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RP Wang, C (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RI alrefaei, hessa/F-1443-2015
NR 22
TC 1
Z9 1
U1 6
U2 10
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0810-5391
J9 ACCOUNT FINANC
JI Account . Financ.
PD DEC
PY 2010
VL 50
IS 4
BP 993
EP 1012
DI 10.1111/j.1467-629X.2010.00351.x
PG 20
WC Business, Finance
SC Business & Economics
GA 674GO
UT WOS:000283725000012
ER
PT J
AU Boeneman, K
Deschamps, JR
Buckhout-White, S
Prasuhn, DE
Blanco-Canosa, JB
Dawson, PE
Stewart, MH
Susumu, K
Goldman, ER
Ancona, M
Medintz, IL
AF Boeneman, Kelly
Deschamps, Jeffrey R.
Buckhout-White, Susan
Prasuhn, Duane E.
Blanco-Canosa, Juan B.
Dawson, Philip E.
Stewart, Michael H.
Susumu, Kimihiro
Goldman, Ellen R.
Ancona, Mario
Medintz, Igor L.
TI Quantum Dot DNA Bioconjugates: Attachment Chemistry Strongly Influences
the Resulting Composite Architecture
SO ACS NANO
LA English
DT Article
DE semiconductor nanocrystal; quantum dot; self-assembly; biotin;
streptavidin; DNA; FRET; Forster resonance energy transfer; dye;
fluorophore; modeling; structure
ID RESONANCE ENERGY-TRANSFER; CHEMOSELECTIVE LIGATION; GOLD NANOPARTICLES;
NANOCRYSTALS; DIAGNOSTICS; NANOSENSOR; PROTEINS; BIOSENSORS; PEPTIDES;
APTAMER
AB The unique properties provided by hybrid semiconductor quantum dot (QD) bioconjugates continue to stimulate interest for many applications ranging from biosensing to energy harvesting. Understanding both the structure and function of these composite materials is an important component in their development. Here, we compare the architecture that results from using two common self-assembly chemistries to attach DNA to QDs. DNA modified to display either a terminal biotin or an oligohistidine peptidyl sequence was assembled to streptavidin/amphiphilic polymer- or PEG-functionalized QDs, respectively. A series of complementary acceptor dye-labeled DNA were hybridized to different positions on the DNA in each QD configuration and the separation distances between the QD-donor and each dye-acceptor probed with Forster resonance energy transfer (FRET). The polyhistidine self-assembly yielded QD-DNA bioconjugates where predicted and experimental separation distances matched reasonably well. Although displaying efficient FRET, data from QD-DNA bioconjugates assembled using biotin-streptavidin chemistry did not match any predicted separation distances. Modeling based upon known QD and DNA structures along with the linkage chemistry and FRET-derived distances was used to simulate each QD-DNA structure and provide insight into the underlying architecture. Although displaying some rotational freedom, the DNA modified with the polyhistidine assembles to the QD with its structure extended out from the QD-PEG surface as predicted. In contrast, the random orientation of streptavidin on the QD surface resulted in DNA with a wide variety of possible orientations relative to the QD which cannot be controlled during assembly. These results suggest that if a particular QD biocomposite structure is desired, for example, random versus oriented, the type of bioconjugation chemistry utilized will be a key influencing factor.
C1 [Boeneman, Kelly; Deschamps, Jeffrey R.; Buckhout-White, Susan; Prasuhn, Duane E.; Goldman, Ellen R.; Medintz, Igor L.] USN, Res Lab, Ctr Biomol Sci & Engn, Code 6900, Washington, DC 20375 USA.
[Stewart, Michael H.; Susumu, Kimihiro] USN, Res Lab, Div Opt Sci, Code 5611, Washington, DC 20375 USA.
[Ancona, Mario] USN, Res Lab, Div Elect Sci & Technol, Code 6876, Washington, DC 20375 USA.
[Buckhout-White, Susan] George Mason Univ, Fairfax, VA 22030 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
RP Medintz, IL (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM igor.medintz@nrl.navy.mil
RI Gemmill, Kelly/G-2167-2012;
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU CB Directorate/Physical S&T Division (DTRA); ONR; NRL; NRL-NSI; ASEE;
NIH [P41 RR-01081]
FX The authors acknowledge the CB Directorate/Physical S&T Division (DTRA),
ONR, NRL, and the NRL-NSI for financial support. K.B. and D.P.
acknowledge ASEE fellowships through NRL. J.B.B.-C acknowledges a Marie
Curie IOF.; UCSF Chimera package from the Resource for Biocomputing,
Visualization, and Informatics at the University of California, San
Francisco was also utilized (supported by NIH P41 RR-01081).
NR 59
TC 81
Z9 81
U1 7
U2 114
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 DEC
PY 2010
VL 4
IS 12
BP 7253
EP 7266
DI 10.1021/nn1021346
PG 14
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 696NW
UT WOS:000285449100026
PM 21082822
ER
PT J
AU Syverson, P
AF Syverson, Paul
TI Opening Two Envelopes
SO ACTA ANALYTICA-INTERNATIONAL PERIODICAL FOR PHILOSOPHY IN THE ANALYTICAL
TRADITION
LA English
DT Article
DE Conditional expectation; Exchange paradox; Epistemic possibility;
Bounded and unbounded values; Decision theory; Topology
ID 2-ENVELOPE PARADOX; EXCHANGE PARADOX; BAYESIAN RESOLUTION; EXPECTATIONS
AB In the two-envelope problem, one is offered a choice between two envelopes, one containing twice as much money as the other. After seeing the contents of the chosen envelope, the chooser is offered the opportunity to make an exchange for the other envelope. However, it appears to be advantageous to switch, regardless of what is observed in the chosen envelope. This problem has an extensive literature with connections to probability and decision theory. The literature is roughly divided between those that attempt to explain what is flawed in arguments for the advantage of switching and those that attempt to explain when such arguments can be correct if counterintuitive. We observe that arguments in the literature of the two-envelope problem that the problem is paradoxical are not supported by the probability distributions meant to illustrate the paradoxical nature. To correct this, we present a distribution that does support the usual arguments. Aside from questions about the interpretation of variables, algebraic ambiguity, modal confusions and the like, most of the interesting aspects of the two-envelope problem are assumed to require probability distributions on an infinite space. Our next main contribution is to show that the same counterintuitive arguments can be reflected in finite versions of the problem; thus they do not inherently require reasoning about infinite values. A topological representation of the problem is presented that captures both finite and infinite cases, explicating intuitions underlying the arguments both that there is an advantage to switching and that there is not.
C1 USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
RP Syverson, P (reprint author), USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
EM syverson@itd.nrl.navy.mil
NR 34
TC 0
Z9 0
U1 0
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0353-5150
J9 ACTA ANAL
JI Acta Anal.-Int. Period. Philos. A.
PD DEC
PY 2010
VL 25
IS 4
BP 479
EP 498
DI 10.1007/s12136-010-0096-7
PG 20
WC Philosophy
SC Philosophy
GA 680VZ
UT WOS:000284266900007
ER
PT J
AU Chandrasekhara, MS
AF Chandrasekhara, M. S.
TI Optimum Gurney flap height determination for "lost-lift" recovery in
compressible dynamic stall control
SO AEROSPACE SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT Internatiuonal Conference on Aerospace Science and Technology
CY JUN 26-28, 2008
CL Bangalore, INDIA
DE Flow control; Unsteady aerodynamics; Gurney flap
ID ENHANCEMENT; MECHANISMS; AIRFOIL; DESIGN
AB A variable droop leading edge (VDLE) airfoil was successfully used to control compressible dynamic stall and its associated adverse pitching moment variations. But, the price for this success was a 10% loss of lift. A Gurney flap was then attached normally to the airfoil pressure surface at its trailing edge to recover this "lost-lift". Gurney flaps are seldom used in compressible flow environment, especially when large angles of attack changes are involved. So, it became necessary to find the optimum flap height that worked satisfactorily for all helicopter retreating blade flow conditions of interest. Parametric experimental studies of airfoil relative performance data with three separate Gurney flaps (0.01c-0.03c height) indicated that a 1%-chord height flap was the most satisfactory. Even though the appropriate Gurney flap height was thus established, a post-experiment analysis of the ensemble averaged airfoil unsteady canonical pressure distributions offered an explanation for the observed success of the 1% Gurney flap. Based on the findings, it is suggested that canonical pressures could serve as a new parameter that can be used for the determination of the Gurney flap height and minimize the experimental effort. Published by Elsevier Masson SAS.
C1 USN, Postgrad Sch, Dept Mech & Astronaut Engn, Monterey, CA 93943 USA.
RP Chandrasekhara, MS (reprint author), USN, Postgrad Sch, Dept Mech & Astronaut Engn, Monterey, CA 93943 USA.
EM mchandra@nps.edu
NR 18
TC 2
Z9 4
U1 1
U2 7
PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75724 PARIS, FRANCE
SN 1270-9638
J9 AEROSP SCI TECHNOL
JI Aerosp. Sci. Technol.
PD DEC
PY 2010
VL 14
IS 8
BP 551
EP 556
DI 10.1016/j.ast.2010.04.010
PG 6
WC Engineering, Aerospace
SC Engineering
GA 695VD
UT WOS:000285399800004
ER
PT J
AU Symonds, CL
AF Symonds, Craig L.
TI HELLDIVERS!
SO AMERICAN HERITAGE
LA English
DT Article
C1 USN Acad, Annapolis, MD 21402 USA.
RP Symonds, CL (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER HERITAGE SUBSCRIPTION DEPT
PI NEW YORK
PA FORBES BUILDING 60 FIFTH AVE, NEW YORK, NY 10011 USA
SN 0002-8738
J9 AM HERITAGE
JI Am. Herit.
PD WIN
PY 2010
VL 59
IS 4
BP 79
EP 81
PG 3
WC History
SC History
GA 529WA
UT WOS:000272548400038
ER
PT J
AU Mungan, CE
AF Mungan, Carl E.
TI More about the falling raindrop
SO AMERICAN JOURNAL OF PHYSICS
LA English
DT Editorial Material
AB A simple strategy is presented for solving the "inverse rocket" problem of a particle accumulating material from a medium through which it falls vertically. Some forms of drag can also be easily included, thereby changing the constant acceleration to a more realistic value. [DOI: 10.1119/1.3471338]
C1 USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Mungan, CE (reprint author), USN Acad, Dept Phys, Annapolis, MD 21402 USA.
EM mungan@usna.edu
NR 3
TC 1
Z9 1
U1 1
U2 2
PU AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0002-9505
J9 AM J PHYS
JI Am. J. Phys.
PD DEC
PY 2010
VL 78
IS 12
BP 1421
EP 1421
DI 10.1119/1.3471338
PG 1
WC Education, Scientific Disciplines; Physics, Multidisciplinary
SC Education & Educational Research; Physics
GA 682AC
UT WOS:000284366200029
ER
PT J
AU Kim, JS
Ligler, FS
AF Kim, Jason S.
Ligler, Frances S.
TI Utilization of microparticles in next-generation assays for microflow
cytometers
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Review
DE Microparticle; Flow cytometry; Microfluidics; Microflow cytometer;
Biosensors
ID PARTICLE-COUNTING IMMUNOASSAY; FLOW CYTOMETER; LIGHT-SCATTERING;
SUPERPARAMAGNETIC NANOPARTICLES; CEREBROSPINAL-FLUID; HIGH-THROUGHPUT;
MAGNETIC-FIELD; CELL ANALYSIS; MAGNETOPHORESIS; SPECTROSCOPY
AB Micron-sized particles have primarily been used in microfabricated flow cytometers for calibration purposes and proof-of-concept experiments. With increasing frequency, microparticles are serving as a platform for assays measured in these small analytical devices. Light scattering has been used to measure the agglomeration of antibody-coated particles in the presence of an antigen. Impedance detection is another technology being integrated into microflow cytometers for microparticle-based assays. Fluorescence is the most popular detection method in flow cytometry, enabling highly sensitive multiplexed assays. Finally, magnetic particles have also been used to measure antigen levels using a magnetophoretic micro-device. We review the progress of microparticle-based assays in microflow cytometry in terms of the advantages and limitations of each approach.
C1 [Kim, Jason S.; Ligler, Frances S.] USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
RP Ligler, FS (reprint author), USN, Ctr Bio Mol Sci & Engn, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM frances.ligler@nrl.navy.mil
FU NIH [UO1 A1075489]
FX JSK was a postdoctoral fellow of the American Society for Engineering
Education. The work presented here was performed under NIH grant UO1
A1075489 and ONR/NRL 6.2 work unit 6336. The views presented here are
those of the authors and do not represent the opinion or policy of the
National Institutes of Health, Department of Health and Human Services,
the US Navy, or the Department of Defense.
NR 55
TC 16
Z9 16
U1 3
U2 23
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD DEC
PY 2010
VL 398
IS 6
BP 2373
EP 2382
DI 10.1007/s00216-010-3848-8
PG 10
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 672ML
UT WOS:000283588600005
PM 20526882
ER
PT J
AU Zins, SR
Amare, MF
Tadaki, DK
Elster, EA
Davis, TA
AF Zins, Stephen R.
Amare, Mihret F.
Tadaki, Douglas K.
Elster, Eric. A.
Davis, Thomas A.
TI Comparative analysis of angiogenic gene expression in normal and
impaired wound healing in diabetic mice: effects of extracorporeal shock
wave therapy
SO ANGIOGENESIS
LA English
DT Article
DE Acute wound healing; Angiogenesis; Extracorporeal shock wave therapy;
Impaired wound healing; Wound closure
ID EPIDERMAL-GROWTH-FACTOR; SKIN FLAP MODEL; MATRIX METALLOPROTEINASES;
PROSTAGLANDIN BIOSYNTHESIS; CXC CHEMOKINES; FACTOR-ALPHA; IN-VIVO;
INFLAMMATION; ISCHEMIA; MECHANOTRANSDUCTION
AB Impaired wound healing is a persistent clinical problem which has been treated with mixed results. Studies aimed at elucidating the mechanism of impaired wound healing have focused on small cohorts of genes which leave an incomplete picture of the wound healing process. We aimed to investigate impaired wound healing via a comprehensive panel of angiogenic/inflammation-related genes and wound closure kinetics with and without the application of extracorporeal shock wave therapy (ESWT), which has been demonstrated to improve wound healing. Full-thickness skin from the dorsal surface of "normal" (BALB/c) and "impaired" (db (+)/db (+)) mice was excised, and wound margin tissue was harvested 2, 7, and 10 days post injury. A separate, but identical wound model was established over 40 days in order to measure wound closure kinetics. Over time, the normal non-ESWT treated wounds exhibited varying patterns of elevated expression of 25-30 genes, whereas wounds with impaired healing displayed prolonged elevated expression of only a few genes (CXCL2, CXCL5, CSF3, MMP9, TGF-alpha). In response to ESWT, gene expression was augmented in both types of wounds, especially in the expression of PECAM-1; however, ESWT had no effect on wound closure in either model. In addition, multiple doses of ESWT exacerbated the delayed wound healing, and actually caused the wounds to initially increase in size. These data provide a more complete picture of impaired wound healing, and a way to evaluate various promising treatments.
C1 [Zins, Stephen R.; Amare, Mihret F.; Tadaki, Douglas K.; Elster, Eric. A.; Davis, Thomas A.] USN, Med Res Ctr, Regenerat Med Dept, Operat & Undersea Med Directorate, Silver Spring, MD 20910 USA.
RP Davis, TA (reprint author), USN, Med Res Ctr, Regenerat Med Dept, Operat & Undersea Med Directorate, Room 2A10,503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM thomas.davis1@med.navy.mil
FU ONR [602236N.42237.W160.A0806, 601153N.04508.5180.A0801]
FX We thank Michelle Lazzaro and Yina Mo for their expert technical
assistance. We thank Tissue Regenerative Technologies Inc. (Woodstock,
GA) for the use of the DermaGold (TM) shockwave instrument. This work
was supported by ONR work units 602236N.42237.W160.A0806 and
601153N.04508.5180.A0801.
NR 65
TC 20
Z9 22
U1 0
U2 3
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0969-6970
J9 ANGIOGENESIS
JI Angiogenesis
PD DEC
PY 2010
VL 13
IS 4
BP 293
EP 304
DI 10.1007/s10456-010-9186-9
PG 12
WC Peripheral Vascular Disease
SC Cardiovascular System & Cardiology
GA 679ID
UT WOS:000284154200002
PM 20848181
ER
PT J
AU Muterspaugh, MW
Hartkopf, WI
Lane, BF
O'Connell, J
Williamson, M
Kulkarni, SR
Konacki, M
Burke, BF
Colavita, MM
Shao, M
Wiktorowicz, SJ
AF Muterspaugh, Matthew W.
Hartkopf, William I.
Lane, Benjamin F.
O'Connell, J.
Williamson, M.
Kulkarni, S. R.
Konacki, Maciej
Burke, Bernard F.
Colavita, M. M.
Shao, M.
Wiktorowicz, Sloane J.
TI THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. II. UPDATED BINARY STAR
ORBITS AND A LONG PERIOD ECLIPSING BINARY
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE astrometry; binaries: close; binaries: eclipsing; binaries: visual;
techniques: interferometric
ID RADIAL-VELOCITY OBSERVATIONS; PALOMAR TESTBED INTERFEROMETER; SOLAR-TYPE
STARS; SPECTROSCOPIC BINARIES; PRECISION ASTROMETRY; ADAPTIVE OPTICS;
SYSTEM; MULTIPLICITY; MASSES; TELESCOPE
AB Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems have been combined with lower precision single-aperture measurements covering a much longer timespan ( from eyepiece measurements, speckle interferometry, and adaptive optics) to determine improved visual orbits for 20 binary stars. In some cases, radial velocity observations exist to constrain the full three-dimensional orbit and determine component masses. The visual orbit of one of these binaries-alpha Com ( HD 114378)-shows that the system is likely to have eclipses, despite its very long period of 26 years. The next eclipse is predicted to be within a week of 2015 January 24.
C1 [Muterspaugh, Matthew W.; O'Connell, J.] Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Nashville, TN 37209 USA.
[Muterspaugh, Matthew W.; Williamson, M.] Tennessee State Univ, Ctr Excellence Informat Syst, Nashville, TN 37209 USA.
[Hartkopf, William I.] USN Observ, Washington, DC 20392 USA.
[Lane, Benjamin F.] Draper Lab, Cambridge, MA 02139 USA.
[Kulkarni, S. R.] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA.
[Konacki, Maciej] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, PL-87100 Torun, Poland.
[Konacki, Maciej] Adam Mickiewicz Univ Poznan, Astron Observ, PL-60286 Poznan, Poland.
[Burke, Bernard F.] MIT, Dept Phys, MIT Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA.
[Colavita, M. M.; Shao, M.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Wiktorowicz, Sloane J.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA.
RP Muterspaugh, MW (reprint author), Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Boswell Sci Hall, Nashville, TN 37209 USA.
EM matthew1@coe.tsuniv.edu; wih@usno.navy.mil; blane@draper.com;
maciej@ncac.torun.pl
FU National Aeronautics and Space Administration [NNG05GJ58G]; NASA
[NAS7-03001 (JPL 1336910)]; National Science Foundation [AST 0300096,
AST 0507590, AST 0505366]; Townes Fellowship Program; Tennessee State
University; State of Tennessee through its Centers of Excellence
program; California Institute of Technology Astronomy Department;
Foundation for Polish Science; Polish Ministry of Science and Higher
Education [N203 3020 35]
FX PHASES benefits from the efforts of the PTI collaboration members who
have each contributed to the development of an extremely reliable
observational instrument. Without this outstanding engineering effort to
produce a solid foundation, advanced phase-referencing techniques would
not have been possible. We thank PTI's night assistant Kevin Rykoski for
his efforts to maintain PTI in excellent condition and operating PTI in
phase-referencing mode every week. Thanks are also extended to Ken
Johnston and the U. S. Naval Observatory for their continued support of
the USNO Double Star Program. Part of the work described in this paper
was performed at the Jet Propulsion Laboratory under contract with the
National Aeronautics and Space Administration. Interferometer data were
obtained at the Palomar Observatory with the NASA Palomar Testbed
Interferometer, supported by NASA contracts to the Jet Propulsion
Laboratory. This publication 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/California
Institute of Technology, funded by the National Aeronautics and Space
Administration and the National Science Foundation. This research has
made use of the Simbad database, operated at CDS, Strasbourg, France.
This research has made use of SAOImage DS9, developed by the Smithsonian
Astrophysical Observatory. M.W.M. acknowledges support from the Townes
Fellowship Program, Tennessee State University, and the state of
Tennessee through its Centers of Excellence program. Some of the
software used for analysis was developed as part of the SIM Double Blind
Test with support from NASA contract NAS7-03001 (JPL 1336910). PHASES is
funded in part by the California Institute of Technology Astronomy
Department and by the National Aeronautics and Space Administration
under grant No. NNG05GJ58G issued through the Terrestrial Planet Finder
Foundation Science Program. This work was supported in part by the
National Science Foundation through grants AST 0300096, AST 0507590, and
AST 0505366. M.K. is supported by the Foundation for Polish Science
through a FOCUS grant and fellowship, by the Polish Ministry of Science
and Higher Education through grant N203 3020 35.
NR 47
TC 26
Z9 26
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1623
EP 1630
DI 10.1088/0004-6256/140/6/1623
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500003
ER
PT J
AU Muterspaugh, MW
Fekel, FC
Lane, BF
Hartkopf, WI
Kulkarni, SR
Konacki, M
Burke, BF
Colavita, MM
Shao, M
Williamson, M
AF Muterspaugh, Matthew W.
Fekel, Francis C.
Lane, Benjamin F.
Hartkopf, William I.
Kulkarni, S. R.
Konacki, Maciej
Burke, Bernard F.
Colavita, M. M.
Shao, M.
Williamson, M.
TI THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. IV. THE TRIPLE STAR
SYSTEMS 63 Gem A AND HR 2896
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE astrometry; binaries: close; binaries: visual
ID PALOMAR TESTBED INTERFEROMETER; BINARY-SYSTEMS; PLANET SEARCH; CHARA
ARRAY; DETECTABILITY; ORBITS; MASS
AB Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) are used to constrain the astrometric orbit of the previously known less than or similar to 2 day subsystem in the triple system 63 Gem A and have detected a previously unknown two-year Keplerian wobble superimposed on the visual orbit of the much longer period (213 years) binary system HR 2896. 63 Gem A was already known to be triple from spectroscopic work, and absorption lines from all three stars can be identified and their individual Doppler shifts measured; new velocities for all three components are presented to aid in constraining the orbit and measuring the stellar masses. In fact, 63 Gem itself is a sextuple system: the hierarchical triple (Aa1-Aa2)-Ab (in which Aa1 and Aa2 orbit each other with a rapid period just under 2 days, and Ab orbits these every two years), plus three distant common proper motion companions. The very small astrometric perturbation caused by the inner pair in 63 Gem A stretches the limits of current astrometric capabilities, but PHASES observations are able to constrain the orientation of the orbit. The two bright stars comprising the HR 2896 long-period (213 year) system have a combined spectral type of K0III and the newly detected object's mass estimate places it in the regime of being an M dwarf. The motion of the stars are slow enough that their spectral features are always blended, preventing Doppler studies. The PHASES measurements and radial velocities (when available) have been combined with lower precision single-aperture measurements covering a much longer time frame (from eyepiece measurements, speckle interferometry, and adaptive optics) to improve the characterization of the long-period orbits in both binaries. The visual orbits of the short-and long-period systems are presented for both systems and used to calculate two possible values of the mutual inclinations between inner and outer orbits of 152 degrees +/- 12 degrees or a less likely value of 31 degrees +/- 11 degrees for 63 Gem A and 10.. 2 +/- 2 degrees.4 or 171 degrees.2 +/- 2 degrees.8 for HR 2896. The first is not coplanar, whereas the second is either nearly coplanar or anti-coplanar.
C1 [Muterspaugh, Matthew W.] Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Nashville, TN 37209 USA.
[Muterspaugh, Matthew W.; Fekel, Francis C.; Williamson, M.] Tennessee State Univ, Ctr Excellence Informat Syst, Nashville, TN 37209 USA.
[Lane, Benjamin F.] Draper Lab, Cambridge, MA 02139 USA.
[Hartkopf, William I.] USN Observ, Washington, DC 20392 USA.
[Kulkarni, S. R.] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA.
[Konacki, Maciej] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, PL-87100 Torun, Poland.
[Konacki, Maciej] Adam Mickiewicz Univ Poznan, Astron Observ, PL-60286 Poznan, Poland.
[Burke, Bernard F.] MIT, Dept Phys, MIT Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA.
[Colavita, M. M.; Shao, M.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
RP Muterspaugh, MW (reprint author), Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Boswell Sci Hall, Nashville, TN 37209 USA.
EM matthew1@coe.tsuniv.edu; blane@draper.com; wih@usno.navy.mil;
maciej@ncac.torun.pl
FU National Aeronautics and Space Administration [NNG05GJ58G]; NASA
[NAS7-03001 (JPL 1336910)]; National Science Foundation [AST 0300096,
AST 0507590, AST 0505366]; Townes Fellowship Program; Tennessee State
University; State of Tennessee through its Centers of Excellence
program; California Institute of Technology, Astronomy Department;
Foundation for Polish Science; Polish Ministry of Science and Higher
Education [N203 3020 35]
FX PHASES benefits from the efforts of the PTI collaboration members who
have each contributed to the development of an extremely reliable
observational instrument. Without this outstanding engineering effort to
produce a solid foundation, advanced phase-referencing techniques would
not have been possible. We thank PTI's night assistant Kevin Rykoski for
his efforts to maintain PTI in excellent condition and operating PTI in
phase-referencing mode every week. Thanks are also extended to Ken
Johnston and the U. S. Naval Observatory for their continued support of
the USNO Double Star Program. Part of the work described in this paper
was performed at the Jet Propulsion Laboratory under contract with the
National Aeronautics and Space Administration. Interferometer data were
obtained at the Palomar Observatory with the NASA Palomar Testbed
Interferometer, supported by NASA contracts to the Jet Propulsion
Laboratory. This publication 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/California
Institute of Technology, funded by the National Aeronautics and Space
Administration and the National Science Foundation. This research has
made use of the Simbad database, operated at CDS, Strasbourg, France.
This research has made use of SAOImage DS9, developed by the Smithsonian
Astrophysical Observatory. M.W.M. acknowledges support from the Townes
Fellowship Program, Tennessee State University, and the state of
Tennessee through its Centers of Excellence program. Some of the
software used for analysis was developed as part of the SIM Double Blind
Test with support from NASA contract NAS7-03001 (JPL 1336910). PHASES is
funded in part by the California Institute of Technology, Astronomy
Department, and by the National Aeronautics and Space Administration
under Grant No. NNG05GJ58G issued through the Terrestrial Planet Finder
Foundation Science Program. This work was supported in part by the
National Science Foundation through grants AST 0300096, AST 0507590, and
AST 0505366. M.K. is supported by the Foundation for Polish Science
through a FOCUS grant and fellowship, by the Polish Ministry of Science
and Higher Education through grant N203 3020 35.
NR 21
TC 8
Z9 8
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1646
EP 1656
DI 10.1088/0004-6256/140/6/1646
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500005
ER
PT J
AU Muterspaugh, MW
Lane, BF
Kulkarni, SR
Konacki, M
Burke, BF
Colavita, MM
Shao, M
Hartkopf, WI
Boss, AP
Williamson, M
AF Muterspaugh, Matthew W.
Lane, Benjamin F.
Kulkarni, S. R.
Konacki, Maciej
Burke, Bernard F.
Colavita, M. M.
Shao, M.
Hartkopf, William I.
Boss, Alan P.
Williamson, M.
TI THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. V. CANDIDATE SUBSTELLAR
COMPANIONS TO BINARY SYSTEMS
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE astrometry; binaries: close; binaries: visual; techniques:
interferometric
ID PALOMAR TESTBED INTERFEROMETER; PRECISION RADIAL-VELOCITIES;
HUBBLE-SPACE-TELESCOPE; GIANT PLANET FORMATION; EXTRA-SOLAR PLANETS;
STAR CD-ROM; BARNARDS STAR; GRAVITATIONAL-INSTABILITY; CORALIE SURVEY;
GJ 802B
AB The Palomar High-precision Astrometric Search for Exoplanet Systems monitored 51 subarcsecond binary systems to evaluate whether tertiary companions as small as Jovian planets orbited either the primary or secondary stars, perturbing their otherwise smooth Keplerian motions. Six binaries are presented that show evidence of substellar companions orbiting either the primary or secondary star. Of these six systems, the likelihoods of two of the detected perturbations to represent real objects are considered to be "high confidence," while the remaining four systems are less certain and will require continued observations for confirmation.
C1 [Muterspaugh, Matthew W.] Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Nashville, TN 37209 USA.
[Muterspaugh, Matthew W.; Williamson, M.] Tennessee State Univ, Ctr Excellence Informat Syst, Nashville, TN 37209 USA.
[Lane, Benjamin F.] Draper Lab, Cambridge, MA 02139 USA.
[Kulkarni, S. R.] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA.
[Konacki, Maciej] Polish Acad Sci, Nicolaus Copernicus Astron Ctr, PL-87100 Torun, Poland.
[Konacki, Maciej] Adam Mickiewicz Univ Poznan, Astron Observ, PL-60286 Poznan, Poland.
[Burke, Bernard F.] MIT, Dept Phys, MIT Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA.
[Colavita, M. M.; Shao, M.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Hartkopf, William I.] USN Observ, Washington, DC 20392 USA.
[Boss, Alan P.] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
RP Muterspaugh, MW (reprint author), Tennessee State Univ, Coll Arts & Sci, Dept Math & Phys, Boswell Sci Hall, Nashville, TN 37209 USA.
EM matthew1@coe.tsuniv.edu; blane@draper.com; maciej@ncac.torun.pl
FU National Aeronautics and Space Administration [NNG05GJ58G]; NASA
[NAS7-03001 (JPL 1336910)]; National Science Foundation [AST 0300096,
AST 0507590, AST 0505366]; Townes Fellowship Program; Tennessee State
University; State of Tennessee through its Centers of Excellence
program; California Institute of Technology Astronomy Department;
Foundation for Polish Science; Polish Ministry of Science and Higher
Education [N203 3020 35]
FX PHASES benefits from the efforts of the PTI collaboration members who
have each contributed to the development of an extremely reliable
observational instrument. Without this outstanding engineering effort to
produce a solid foundation, advanced phase-referencing techniques would
not have been possible. We thank PTI's night assistant Kevin Rykoski for
his efforts to maintain PTI in excellent condition and operating PTI in
phase-referencing mode every week. Thanks are also extended toKen
Johnston and the U. S. Naval Observatory for their continued support of
the USNO Double Star Program. Part of thework described in this paper
was performed at the Jet Propulsion Laboratory under contract with the
National Aeronautics and Space Administration. Interferometer data were
obtained at the Palomar Observatory with the NASA Palomar Testbed
Interferometer, supported by NASA contracts to the Jet Propulsion
Laboratory. This publication 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/California
Institute of Technology, funded by the National Aeronautics and Space
Administration and the National Science Foundation. This research has
made use of the Simbad database, operated at CDS, Strasbourg, France.
M.W.M. acknowledges support from the Townes Fellowship Program,
Tennessee State University, and the state of Tennessee through its
Centers of Excellence program. Some of the software used for analysis
was developed as part of the SIM Double Blind Test with support from
NASA contract NAS7-03001 (JPL 1336910). PHASES is funded in part by the
California Institute of Technology Astronomy Department, and by the
National Aeronautics and Space Administration under grant no. NNG05GJ58G
issued through the Terrestrial Planet Finder Foundation Science Program.
This work was supported in part by the National Science Foundation
through grants AST 0300096, AST 0507590, and AST 0505366. M.K. is
supported by the Foundation for Polish Science through a FOCUS grant and
fellowship, by the Polish Ministry of Science and Higher Education
through grant N203 3020 35.
NR 64
TC 30
Z9 31
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1657
EP 1671
DI 10.1088/0004-6256/140/6/1657
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500006
ER
PT J
AU Lazio, TJW
Shankland, PD
Farrell, WM
Blank, DL
AF Lazio, T. Joseph W.
Shankland, P. D.
Farrell, W. M.
Blank, D. L.
TI RADIO OBSERVATIONS OF HD 80606 NEAR PLANETARY PERIASTRON
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE planetary systems; planets and satellites: magnetic fields; planets and
satellites: individual (HD 80606b); radio continuum: planetary systems
ID EXTRASOLAR PLANETS; MAGNETOSPHERIC EMISSIONS; FREQUENCY INTERFERENCE;
NEARBY STARS; COOL STARS; 74 MHZ; SEARCH; TRANSIT; SYSTEMS; ORBIT
AB This paper reports Very Large Array observations at 325 and 1425 MHz (lambda 90 cm and lambda 20 cm) during and near the periastron passage of HD 80606b on HJD 2454424.86 (2007 November 20). We obtain flux density limits (3 sigma) of 1.7 mJy and 48 mu Jy at 325 and 1425 MHz, respectively, equivalent to planetary luminosity limits of 2.3x10(24) erg s(-1) and 2.7 x 10(23) erg s-1. Unfortunately, these are several orders of magnitude above the nominal Jovian value (at 40 MHz) of 2x10(18) erg s-1. The motivation for these observations was that the planetary magnetospheric emission is driven by a stellar wind-planetary magnetosphere interaction so that the planetary luminosity would be elevated near periastron. We estimate that, near periastron, HD 80606b might be as much as 3000 times more luminous than Jupiter. Recent transit observations of HD 80606b provide reasonably stringent constraints on the planetary mass and radius, and, because of the planet's highly eccentric orbit, its rotation period is likely to be "pseudo-synchronized" to its orbital period, allowing a robust estimate of the former. Consequently, we are able to make relatively robust estimates of the emission frequency of the planetary magnetospheric emission and find it to be around 60-90 MHz. While this is too low for our reported observations, we compare HD 80606b to other high-eccentricity systems and assess the detection possibilities for both near-term and more distant future systems. Of the known high-eccentricity planets, only HD 80606b is likely to be detectable, as the others (HD 20782B and HD 4113) are both lower mass and longer rotational periods, which imply weaker magnetic field strengths. We find that both the forthcoming "EVLA low band" system, which will operate as low as 65 MHz, and the Low Frequency Array may be able to improve upon our planetary luminosity limits for HD 80606b, and do so at a more optimum frequency. If the low-frequency component of the Square Kilometre Array (SKA-lo) and a future lunar radio array are able to approach their thermal noise limits, they should be able to detect an HD 80606b-like planet, unless the amount by which the planet's luminosity increases is substantially less than the factor of 3000 that we estimate; for the SKA-lo, which is to be located in the southern hemisphere, future planetary surveys will have to find southern hemisphere equivalents of HD 80606b.
C1 [Lazio, T. Joseph W.; Farrell, W. M.] NASA, Lunar Sci Inst, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Lazio, T. Joseph W.] USN, Res Lab, Washington, DC 20375 USA.
[Shankland, P. D.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA.
[Farrell, W. M.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Blank, D. L.] James Cook Univ, Sch Math & Phys Sci, Ctr Astron, Townsville, Qld 4811, Australia.
RP Lazio, TJW (reprint author), CALTECH, Jet Prop Lab, M-S 138-308,4800 Oak Grove Dr, Pasadena, CA 91109 USA.
RI Farrell, William/I-4865-2013
FU NASA Lunar Science Institute [NNA09DB30A]; 6.1 Base
FX We thank G. Laughlin for the initial inspiration for these observations
and for pointing out that HD 80606b should be in a state of
pseudo-synchronization; J. Schneider for the Extrasolar Planets
Encyclopedia; and P. Perley and W. Koski for helpful discussions.
T.J.W.L. thanks USNO, where much of this paper was written, for its
hospitality. The National Radio Astronomy Observatory is a facility of
the National Science Foundation operated under cooperative agreement by
Associated Universities, Inc. The LUNAR consortium is funded by the NASA
Lunar Science Institute (via Cooperative Agreement NNA09DB30A) to
investigate concepts for astrophysical observatories on the Moon. Basic
research at NRL is supported by 6.1 Base funding.
NR 40
TC 12
Z9 12
U1 1
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1929
EP 1933
DI 10.1088/0004-6256/140/6/1929
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500028
ER
PT J
AU Vieira, K
Girard, TM
van Altena, WF
Zacharias, N
Casetti-Dinescu, DI
Korchagin, VI
Platais, I
Monet, DG
Lopez, CE
Herrera, D
Castillo, DJ
AF Vieira, Katherine
Girard, Terrence M.
van Altena, William F.
Zacharias, Norbert
Casetti-Dinescu, Dana I.
Korchagin, Vladimir I.
Platais, Imants
Monet, David G.
Lopez, Carlos E.
Herrera, David
Castillo, Danilo J.
TI PROPER-MOTION STUDY OF THE MAGELLANIC CLOUDS USING SPM MATERIAL
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE astrometry; catalogs; Magellanic Clouds; proper motions
ID INERTIAL REFERENCE SYSTEM; N-BODY SIMULATIONS; MILKY-WAY; DYNAMICAL
EVOLUTION; HALO MASS; STREAM; CATALOG; KINEMATICS; PROGRAM; ORIGIN
AB Absolute proper motions are determined for stars and galaxies to V = 17.5 over a 450 deg(2) area that encloses both Magellanic Clouds. The proper motions are based on photographic and CCD observations of the Yale/San Juan Southern Proper Motion program, which span a baseline of 40 years. Multiple, local relative proper-motion measures are combined in an overlap solution using photometrically selected Galactic disk stars to define a global relative system that is then transformed to absolute using external galaxies and Hipparcos stars to tie into the ICRS. The resulting catalog of 1.4 million objects is used to derive the mean absolute proper motions of the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC); (mu(alpha) cos delta, mu(delta))(LMC) = (1.89, + 0.39)+/-(0.27, 0.27) mas yr(-1) and (mu(alpha) cos delta, mu(delta))(SMC) = (0.98,-1.01) +/-(0.30, 0.29) mas yr(-1). These mean motions are based on best-measured samples of 3822 LMC stars and 964 SMC stars. A dominant portion (0.25 mas yr(-1)) of the formal errors is due to the estimated uncertainty in the inertial system of the Hipparcos Catalog stars used to anchor the bright end of our proper motion measures. A more precise determination can be made for the proper motion of the SMC relative to the LMC; (mu(alpha) (cos delta), mu(delta))(SMC-LMC) = (-0.91,-1.49) +/- (0.16, 0.15) mas yr(-1). This differential value is combined with measurements of the proper motion of the LMC taken from the literature to produce new absolute proper-motion determinations for the SMC, as well as an estimate of the total velocity difference of the two clouds to within +/- 54 km s(-1). The absolute proper-motion results are consistent with the Clouds' orbits being marginally bound to the Milky Way, albeit on an elongated orbit. The inferred relative velocity between the Clouds places them near their binding energy limit and, thus, no definitive conclusion can be made as to whether or not the Clouds are bound to one another.
C1 [Vieira, Katherine; Girard, Terrence M.; van Altena, William F.; Casetti-Dinescu, Dana I.; Korchagin, Vladimir I.; Herrera, David] Yale Univ, Dept Astron, New Haven, CT 06520 USA.
[Zacharias, Norbert] USN Observ, Washington, DC 20392 USA.
[Platais, Imants] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Monet, David G.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA.
[Lopez, Carlos E.; Castillo, Danilo J.] Univ San Juan, RA-5413 Chimbas, San Juan, Argentina.
[Lopez, Carlos E.; Castillo, Danilo J.] Yale So Observ, RA-5413 Chimbas, San Juan, Argentina.
RP Vieira, K (reprint author), Ctr Invest Astron, Apartado Postal 264, Merida 5101A, Venezuela.
EM kvieira@cida.ve; terry.girard@yale.edu; william.vanaltena@yale.edu;
nz@usno.navy.mil; dana.casetti@yale.edu; vkorchagin@sfedu.ru;
imants@pha.jhu.edu; dgm@nofs.navy.mil; cel_2018@yahoo.com.ar;
david.herrera@yale.edu; daniloeros@hotmail.com
RI Korchagin, Vladimir/L-5324-2016
FU National Science Foundation [AST04-07292, AST04-07293, AST09-08996];
Yale Astronomy Department; National Aeronautics and Space Administration
FX K. Vieira also thanks the National Science Foundation (grants
AST04-07292, AST04-07293, AST09-08996) and the Yale Astronomy Department
for their financial support during her graduate career. She and the
other authors are grateful to the NSF and to Yale University for support
of the SPM and this research in particular throughout the many years
required to complete the SPM.; This publication 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/California Institute of Technology, funded by the National
Aeronautics and Space Administration and the National Science
Foundation.
NR 88
TC 39
Z9 39
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1934
EP 1950
DI 10.1088/0004-6256/140/6/1934
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500029
ER
PT J
AU Lazio, TJW
Clarke, TE
Lane, WM
Gross, C
Kassim, NE
Ray, PS
Wood, D
York, JA
Kerkhoff, A
Hicks, B
Polisensky, E
Stewart, K
Dalal, NP
Cohen, AS
Erickson, WC
AF Lazio, T. Joseph W.
Clarke, Tracy E.
Lane, W. M.
Gross, C.
Kassim, N. E.
Ray, P. S.
Wood, D.
York, J. A.
Kerkhoff, A.
Hicks, B.
Polisensky, E.
Stewart, K.
Dalal, N. Paravastu
Cohen, A. S.
Erickson, W. C.
TI SURVEYING THE DYNAMIC RADIO SKY WITH THE LONG WAVELENGTH DEMONSTRATOR
ARRAY
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE instrumentation: interferometers; methods: observational; radio
continuum: general
ID GAMMA-RAY BURSTS; STELLAR WIND CONDITIONS; EXTRASOLAR PLANETS; GIANT
PULSES; CRAB PULSAR; AIR-SHOWERS; FREQUENCY OBSERVATIONS; ENERGY
NEUTRINOS; COSMIC-RAYS; SEARCH
AB This paper presents a search for radio transients at a frequency of 73.8 MHz (4 m wavelength) using the all-sky imaging capabilities of the Long Wavelength Demonstrator Array (LWDA). The LWDA was a 16-dipole phased array telescope, located on the site of the Very Large Array in New Mexico. The field of view of the individual dipoles was essentially the entire sky, and the number of dipoles was sufficiently small that a simple software correlator could be used to make all-sky images. From 2006 October to 2007 February, we conducted an all-sky transient search program, acquiring a total of 106 hr of data; the time sampling varied, being 5 minutes at the start of the program and improving to 2 minutes by the end of the program. We were able to detect solar flares, and in a special-purpose mode, radio reflections from ionized meteor trails during the 2006 Leonid meteor shower. We detected no transients originating outside of the solar system above a flux density limit of 500 Jy, equivalent to a limit of no more than about 10(-2) events yr(-1) deg(-2), having a pulse energy density greater than or similar to 1.5 x 10(-20) J m(-2) Hz(-1) at 73.8 MHz for pulse widths of about 300 s. This event rate is comparable to that determined from previous all-sky transient searches, but at a lower frequency than most previous all-sky searches. We believe that the LWDA illustrates how an all-sky imaging mode could be a useful operational model for low-frequency instruments such as the Low Frequency Array, the Long Wavelength Array station, the low-frequency component of the Square Kilometre Array, and potentially the Lunar Radio Array.
C1 [Lazio, T. Joseph W.; Clarke, Tracy E.; Lane, W. M.; Gross, C.; Kassim, N. E.; Hicks, B.; Polisensky, E.; Stewart, K.] USN, Remote Sensing Div, Res Lab, Washington, DC 20375 USA.
[Lazio, T. Joseph W.] NASA, Lunar Sci Inst, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Ray, P. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Wood, D.] Praxis Inc, Alexandria, VA 22303 USA.
[York, J. A.; Kerkhoff, A.] Univ Texas Austin, Appl Res Labs, Austin, TX 78713 USA.
[Dalal, N. Paravastu] Amer Soc Engn Educ, Washington, DC 20036 USA.
[Cohen, A. S.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Erickson, W. C.] Univ Tasmania, Sch Math & Sci, Sandy Bay, Tas 7005, Australia.
RP Lazio, TJW (reprint author), CALTECH, Jet Prop Lab, M-S 138-308,4800 Oak Grove Dr, Pasadena, CA 91109 USA.
EM Joseph.Lazio@jpl.nasa.gov
OI Ray, Paul/0000-0002-5297-5278
FU NASA Lunar Science Institute [NNA09DB30A]; 6.1 Base
FX The LWDA was a joint project of NRL, the Applied Research Laboratories
of the University of Texas at Austin, and the University of New Mexico.
We thank the members of the University of New Mexico faculty and
students who assisted with the infrastructure, construction, and
maintenance of the LWDA and the many staff members of the NRAO who
provided technical support in establishing the LWDA near the VLA. We
thank K. Weiler, D. Munton, and L. J. Rickard for their guidance during
various stages of the project. We thank J. Cordes for providing the
software to generate Figure 7. This research has made use of NASA's
Astrophysics Data System. The LUNAR consortium, headquartered at the
University of Colorado, is funded by the NASA Lunar Science Institute
(via Cooperative Agreement NNA09DB30A) to investigate concepts for
astrophysical observatories on the Moon. Basic research in radio
astronomy at the NRL is supported by 6.1 Base funding.
NR 112
TC 26
Z9 26
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD DEC
PY 2010
VL 140
IS 6
BP 1995
EP 2006
DI 10.1088/0004-6256/140/6/1995
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679EK
UT WOS:000284143500035
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bellazzini, R
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Charles, E
Chaty, S
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
DeCesar, ME
Dermer, CD
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Favuzzi, C
Fortin, P
Frailis, M
Fukazawa, Y
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, I
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hadasch, D
Harding, AK
Hays, E
Jean, P
Johannesson, G
Johnson, TJ
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Garde, ML
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Pancrazi, B
Parent, D
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Reimer, A
Reimer, O
Reposeur, T
Ripken, J
Romani, RW
Roth, M
Sadrozinski, HFW
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, DA
Spinelli, P
Strickman, MS
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Venter, C
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Webb, N
Winer, BL
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Charles, E.
Chaty, S.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
DeCesar, M. E.
Dermer, C. D.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Favuzzi, C.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hadasch, D.
Harding, A. K.
Hays, E.
Jean, P.
Johannesson, G.
Johnson, T. J.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Garde, M. Llena
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Pancrazi, B.
Parent, D.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Reimer, A.
Reimer, O.
Reposeur, T.
Ripken, J.
Romani, R. W.
Roth, M.
Sadrozinski, H. F. -W.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, D. A.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Venter, C.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Webb, N.
Winer, B. L.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI A population of gamma-ray emitting globular clusters seen with the Fermi
Large Area Telescope
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE pulsars: general; globular clusters: general; gamma rays: general
ID TO-LIGHT RATIO; SPACE-TELESCOPE; OMEGA-CENTAURI; MILLISECOND PULSARS; 47
TUCANAE; GLOBULAR-CLUSTER-47 TUCANAE; COMPACT BINARIES; XMM-NEWTON;
PHOTOMETRY; DISCOVERY
AB Context. Globular clusters with their large populations of millisecond pulsars (MSPs) are believed to be potential emitters of high-energy gamma-ray emission. The observation of this emission provides a powerful tool to assess the millisecond pulsar population of a cluster, is essential for understanding the importance of binary systems for the evolution of globular clusters, and provides complementary insights into magnetospheric emission processes.
Aims. Our goal is to constrain the millisecond pulsar populations in globular clusters from analysis of gamma-ray observations.
Methods. We use 546 days of continuous sky-survey observations obtained with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope to study the gamma-ray emission towards 13 globular clusters.
Results. Steady point-like high-energy gamma-ray emission has been significantly detected towards 8 globular clusters. Five of them (47 Tucanae, Omega Cen, NGC 6388, Terzan 5, and M 28) show hard spectral power indices (0.7 < Gamma < 1.4) and clear evidence for an exponential cut-off in the range 1.0-2.6 GeV, which is the characteristic signature of magnetospheric emission from MSPs. Three of them (M 62, NGC 6440 and NGC 6652) also show hard spectral indices (1.0 < Gamma < 1.7), however the presence of an exponential cut-off can not be unambiguously established. Three of them (Omega Cen, NGC 6388, NGC 6652) have no known radio or X-ray MSPs yet still exhibit MSP spectral properties. From the observed gamma-ray luminosities, we estimate the total number of MSPs that is expected to be present in these globular clusters. We show that our estimates of the MSP population correlate with the stellar encounter rate and we estimate 2600-4700 MSPs in Galactic globular clusters, commensurate with previous estimates.
Conclusions. The observation of high-energy gamma-ray emission from globular clusters thus provides a reliable independent method to assess their millisecond pulsar populations.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Res Council Res Associate, Natl Acad Sci, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Sgro, C.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Chaty, S.; Grenier, I.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, Serv Astrophys, CEA IRFU CNRS,Lab AIM, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Jean, P.; Knoedlseder, J.; Pancrazi, B.; Vilchez, N.; Webb, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brandt, T. J.; Winer, B. L.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Dept Phys, Columbus, OH 43210 USA.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fortin, P.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Nuss, E.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, S-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, Stockholm, Sweden.
[DeCesar, M. E.; Gehrels, N.; Harding, A. K.; Hays, E.; Johnson, T. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[DeCesar, M. E.; Johnson, T. J.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[DeCesar, M. E.; Johnson, T. J.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Astrofis, Osservatorio Astron Trieste, I-34143 Trieste, Italy.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gasparrini, D.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy.
[Guiriec, S.; Vitale, V.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Takahashi, T.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Venter, C.] North West Univ, ZA-2520 Potchefstroom, South Africa.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Royal Inst Technol KTH, Dept Phys, S-10691 Stockholm, Sweden.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, S-39182 Kalmar, Sweden.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
RP Abdo, AA (reprint author), USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
EM jurgen.knodlseder@cesr.fr; benoit.pancrazi@cesr.fr; natalie.webb@cesr.fr
RI Loparco, Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015;
Moskalenko, Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
Venter, Christo/E-6884-2011; Gargano, Fabio/O-8934-2015; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Rando, Riccardo/M-7179-2013;
Hays, Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014
OI Loparco, Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Giordano, Francesco/0000-0002-8651-2394;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214; Rando,
Riccardo/0000-0001-6992-818X; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Chaty, Sylvain/0000-0002-5769-8601;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Gasparrini,
Dario/0000-0002-5064-9495; Tramacere, Andrea/0000-0002-8186-3793;
Baldini, Luca/0000-0002-9785-7726; Venter, Christo/0000-0002-2666-4812;
Gargano, Fabio/0000-0002-5055-6395; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385;
NR 53
TC 51
Z9 51
U1 1
U2 4
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD DEC
PY 2010
VL 524
AR A75
DI 10.1051/0004-6361/201014458
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 685JP
UT WOS:000284625300024
ER
PT J
AU Parkinson, PMS
Dormody, M
Ziegler, M
Ray, PS
Abdo, AA
Ballet, J
Baring, MG
Belfiore, A
Burnett, TH
Caliandro, GA
Camilo, F
Caraveo, PA
de Luca, A
Ferrara, EC
Freire, PCC
Grove, JE
Gwon, C
Harding, AK
Johnson, RP
Johnson, TJ
Johnston, S
Keith, M
Kerr, M
Knodlseder, J
Makeev, A
Marelli, M
Michelson, PF
Parent, D
Ransom, SM
Reimer, O
Romani, RW
Smith, DA
Thompson, DJ
Watters, K
Weltevrede, P
Wolff, MT
Wood, KS
AF Parkinson, P. M. Saz
Dormody, M.
Ziegler, M.
Ray, P. S.
Abdo, A. A.
Ballet, J.
Baring, M. G.
Belfiore, A.
Burnett, T. H.
Caliandro, G. A.
Camilo, F.
Caraveo, P. A.
de Luca, A.
Ferrara, E. C.
Freire, P. C. C.
Grove, J. E.
Gwon, C.
Harding, A. K.
Johnson, R. P.
Johnson, T. J.
Johnston, S.
Keith, M.
Kerr, M.
Knoedlseder, J.
Makeev, A.
Marelli, M.
Michelson, P. F.
Parent, D.
Ransom, S. M.
Reimer, O.
Romani, R. W.
Smith, D. A.
Thompson, D. J.
Watters, K.
Weltevrede, P.
Wolff, M. T.
Wood, K. S.
TI EIGHT gamma-RAY PULSARS DISCOVERED IN BLIND FREQUENCY SEARCHES OF FERMI
LAT DATA
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: general; open clusters and associations: individual
(Westerlund 2); pulsars: general; pulsars: individual (PSR J1023-5746,
PSR J1044-5737, PSR J1413-6205, PSR J1429-5911, PSR J1846+0919, PSR
J1954+2836, PSR J1957+5033, PSR J2055+25); X-rays: individual (CXOU
J102302.8-574606, XMMU J205549.4+253959)
ID LARGE-AREA TELESCOPE; CLUSTER WESTERLUND-2; SOURCE LIST; RADIO; CATALOG;
POPULATION; LUMINOSITIES; EMISSION
AB We report the discovery of eight gamma-ray pulsars in blind frequency searches of similar to 650 source positions using the Large Area Telescope (LAT), on board the Fermi Gamma-ray Space Telescope. We present the timing models, light curves, and detailed spectral parameters of the new pulsars. PSRs J1023-5746, J1044-5737, J1413-5205, J1429-5911, and J1954+2836 are young (tau(c) < 100 kyr), energetic ((E) over dot greater than or similar to 10(36) erg s(-1)), and located within the Galactic plane (vertical bar b vertical bar < 3 degrees). The remaining three pulsars, PSRs J1846+0919, J1957+5033, and J2055+25, are less energetic, and located off the plane. Five pulsars are associated with sources included in the Fermi-LAT bright gamma-ray source list, but only one, PSR J1413-6205, is clearly associated with an EGRET source. PSR J1023-5746 has the smallest characteristic age (tau(c) = 4.6 kyr) and is the most energetic ((E) over dot = 1.1 x 10(37) erg s(-1)) of all gamma-ray pulsars discovered so far in blind searches. By analyzing > 100 ks of publicly available archival Chandra X-ray data, we have identified the likely counterpart of PSR J1023-5746 as a faint, highly absorbed source, CXOU J102302.8-574606. The large X-ray absorption indicates that this could be among the most distant gamma-ray pulsars detected so far. PSR J1023-5746 is positionally coincident with the TeV source HESS J1023-575, located near the young stellar cluster Westerlund 2, while PSR J1954+2836 is coincident with a 4.3 sigma excess reported by Milagro at a median energy of 35 TeV. PSRs J1957+5033 and J2055+25 have the largest characteristic ages (tau(c) similar to 1 Myr) and are the least energetic ((E) over dot similar to 5 x 10(33) erg s(-1)) of the newly discovered pulsars. We used recent XMM observations to identify the counterpart of PSR J2055+25 as XMMU J205549.4+253959. Deep radio follow-up observations of the eight pulsars resulted in no detections of pulsations and upper limits comparable to the faintest known radio pulsars, indicating that these pulsars can be included among the growing population of radio-quiet pulsars in our Galaxy being uncovered by the LAT, and currently numbering more than 20.
C1 [Parkinson, P. M. Saz; Dormody, M.; Ziegler, M.; Belfiore, A.; Johnson, R. P.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Ray, P. S.; Abdo, A. A.; Grove, J. E.; Gwon, C.; Makeev, A.; Parent, D.; Wolff, M. T.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ballet, J.] Univ Paris Diderot, Laboratoire AIM, CEA, IRFU,CNRS,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Belfiore, A.; Caraveo, P. A.; Marelli, M.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Belfiore, A.] Univ Pavia, DFNT, I-27100 Pavia, Italy.
[Burnett, T. H.; Kerr, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.] CSIC, Inst Ciencies Espai, IEEC, Barcelona 08193, Spain.
[Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[de Luca, A.] IUSS, I-27100 Pavia, Italy.
[Ferrara, E. C.; Harding, A. K.; Johnson, T. J.; Thompson, D. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Freire, P. C. C.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Johnson, T. J.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Johnson, T. J.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Johnston, S.; Keith, M.] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
[Knoedlseder, J.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Marelli, M.] Univ Insubria, I-21100 Varese, Italy.
[Michelson, P. F.; Reimer, O.; Romani, R. W.; Watters, K.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Michelson, P. F.; Reimer, O.; Romani, R. W.; Thompson, D. J.; Watters, K.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Smith, D. A.] Ctr Etud Nucleaires Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Smith, D. A.] Univ Bordeaux, Ctr Etud Nucleaires Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Ransom, S. M.] NRAO, Charlottesville, VA 22903 USA.
[Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Weltevrede, P.] Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
RP Parkinson, PMS (reprint author), Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
EM pablo@scipp.ucsc.edu; mdormody@ucsc.edu; ziegler@scipp.ucsc.edu;
Paul.Ray@nrl.navy.mil
RI Thompson, David/D-2939-2012; Harding, Alice/D-3160-2012; Reimer,
Olaf/A-3117-2013;
OI Thompson, David/0000-0001-5217-9135; Reimer, Olaf/0000-0001-6953-1385;
Caraveo, Patrizia/0000-0003-2478-8018
FU Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes
Spatiales in France; Associated Universities, Inc.; National Science
Foundation; Commonwealth Government
FX Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.; The GBT is
operated by the National Radio Astronomy Observatory, a facility of the
National Science Foundation operated under cooperative agreement by
Associated Universities, Inc.; The Arecibo Observatory is part of the
National Astronomy and Ionosphere Center, which is operated by Cornell
University under a cooperative agreement with the National Science
Foundation.; The Parkes radio telescope is part of the Australia
Telescope which is funded by the Commonwealth Government for operation
as a National Facility managed by CSIRO.
NR 44
TC 72
Z9 72
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 DEC
PY 2010
VL 725
IS 1
BP 571
EP 584
DI 10.1088/0004-637X/725/1/571
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 684UN
UT WOS:000284576700070
ER
PT J
AU Hahn, M
Bryans, P
Landi, E
Miralles, MP
Savin, DW
AF Hahn, M.
Bryans, P.
Landi, E.
Miralles, M. P.
Savin, D. W.
TI PROPERTIES OF A POLAR CORONAL HOLE DURING THE SOLAR MINIMUM IN 2007
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: abundances; Sun: activity; Sun: corona
ID COLLISIONAL IONIZATION EQUILIBRIUM; ULTRAVIOLET IMAGING SPECTROMETER; AN
ATOMIC DATABASE; EMISSION-LINES; RATE COEFFICIENTS; ION TEMPERATURES;
SOHO MISSION; CHIANTI; WIND; SUMER
AB We report measurements of a polar coronal hole during the recent solar minimum using the Extreme Ultraviolet Imaging Spectrometer on Hinode. Five observations are analyzed that span the polar coronal hole from the central meridian to the boundary with the quiet-Sun corona. We study the observations above the solar limb in the height range of 1.03-1.20R(circle dot). The electron temperature T-e and emission measure (EM) are found using a geometric mean emission measure method. The EM derived from the elements Fe, Si, S, and Al are compared in order to measure relative coronal-to-photospheric abundance enhancement factors. We also studied the ion temperature T-i and the non-thermal velocity v(nt) using the line profiles. All these measurements are compared to polar coronal hole observations from the previous (1996-1997) solar minimum and to model predictions for relative abundances. There are many similarities in the physical properties of the polar coronal holes between the two minima at these low heights. We find that the electron density, T-e, and Ti are comparable in both minima. T-e shows a comparable gradient with height. Both minima show a decreasing Ti with increasing charge-to-mass ratio q/M. A previously observed upturn of Ti for ions above q/M > 0.25 was not found here. We also compared relative coronal-to-photospheric elemental abundance enhancement factors for a number of elements. These ratios were similar to 1 for both the low first ionization potential (FIP) elements Si and Al and the marginally high FIP element S relative to the low FIP element Fe, as is expected based on earlier observations and models for a polar coronal hole. These results are consistent with no FIP effect in a polar coronal hole.
C1 [Hahn, M.; Savin, D. W.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Bryans, P.] George Mason Univ, Fairfax, VA 22030 USA.
[Landi, E.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Miralles, M. P.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Hahn, M (reprint author), Columbia Univ, Columbia Astrophys Lab, MC 5247,550 W 120th St, New York, NY 10027 USA.
RI Landi, Enrico/H-4493-2011; Savin, Daniel/B-9576-2012; Bryans,
Paul/C-9196-2012; Hahn, Michael /A-6038-2013
OI Savin, Daniel/0000-0002-1111-6610;
FU NASA; Naval Research Laboratory
FX We thank S. R. Cranmer and J. M. Laming for stimulating discussions. M.
H. and D. W. S. were supported in part by the NASA Solar Heliospheric
Physics program. The work of E. L. and M. P. M. is supported by several
NASA grants. The work of P. B. was performed under contract with the
Naval Research Laboratory and was funded by NASA.
NR 44
TC 8
Z9 8
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD DEC
PY 2010
VL 725
IS 1
BP 774
EP 786
DI 10.1088/0004-637X/725/1/774
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 684UN
UT WOS:000284576700086
ER
PT J
AU Jenkins, JM
Borucki, WJ
Koch, DG
Marcy, GW
Cochran, WD
Welsh, WF
Basri, G
Batalha, NM
Buchhave, LA
Brown, TM
Caldwell, DA
Dunham, EW
Endl, M
Fischer, DA
Gautier, TN
Geary, JC
Gilliland, RL
Howell, SB
Isaacson, H
Johnson, JA
Latham, DW
Lissauer, JJ
Monet, DG
Rowe, JF
Sasselov, DD
Howard, AW
MacQueen, P
Orosz, JA
Chandrasekaran, H
Twicken, JD
Bryson, ST
Quintana, EV
Clarke, BD
Li, J
Allen, C
Tenenbaum, P
Wu, HL
Meibom, S
Klaus, TC
Middour, CK
Cote, MT
McCauliff, S
Girouard, FR
Gunter, JP
Wohler, B
Hall, JR
Ibrahim, K
Uddin, AKMK
Wu, MS
Bhavsar, PA
Van Cleve, J
Pletcher, DL
Dotson, JL
Haas, MR
AF Jenkins, Jon M.
Borucki, William J.
Koch, David G.
Marcy, Geoffrey W.
Cochran, William D.
Welsh, William F.
Basri, Gibor
Batalha, Natalie M.
Buchhave, Lars A.
Brown, Timothy M.
Caldwell, Douglas A.
Dunham, Edward W.
Endl, Michael
Fischer, Debra A.
Gautier, Thomas N., III
Geary, John C.
Gilliland, Ronald L.
Howell, Steve B.
Isaacson, Howard
Johnson, John Asher
Latham, David W.
Lissauer, Jack J.
Monet, David G.
Rowe, Jason F.
Sasselov, Dimitar D.
Howard, Andrew W.
MacQueen, Phillip
Orosz, Jerome A.
Chandrasekaran, Hema
Twicken, Joseph D.
Bryson, Stephen T.
Quintana, Elisa V.
Clarke, Bruce D.
Li, Jie
Allen, Christopher
Tenenbaum, Peter
Wu, Hayley
Meibom, Soren
Klaus, Todd C.
Middour, Christopher K.
Cote, Miles T.
McCauliff, Sean
Girouard, Forrest R.
Gunter, Jay P.
Wohler, Bill
Hall, Jennifer R.
Ibrahim, Khadeejah
Uddin, A. K. M. Kamal
Wu, Michael S.
Bhavsar, Paresh A.
Van Cleve, Jeffrey
Pletcher, David L.
Dotson, Jessie L.
Haas, Michael R.
TI DISCOVERY AND ROSSITER-McLAUGHLIN EFFECT OF EXOPLANET KEPLER-8b
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE radio lines: planetary systems; stars: fundamental parameters; stars:
individual (Kepler-8, KIC 6822244, 2MASS 18450914+4227038)
ID SPIN-ORBIT ALIGNMENT; EXTRASOLAR PLANETARY SYSTEMS; SPECTROSCOPIC
TRANSIT; DYNAMICAL RELAXATION; RETROGRADE ORBIT; Y-2 ISOCHRONES; HD
147506B; PARAMETERS; ECCENTRICITY; MISALIGNMENT
AB We report on the discovery and the Rossiter-McLaughlin (R-M) effect of Kepler-8b, a transiting planet identified by the NASA Kepler Mission. Kepler photometry and Keck-HIRES radial velocities yield the radius and mass of the planet around this F8IV subgiant host star. The planet has a radius R(P) = 1.419 R(J) and a mass M(P) = 0.60 M(J), yielding a density of 0.26 g cm(-3), one of the lowest planetary densities known. The orbital period is P = 3.523 days and the orbital semimajor axis is 0.0483(-0.0012)(+0.0006) AU. The star has a large rotational v sin i of 10.5 +/- 0.7 kms(-1) and is relatively faint (V approximate to 13.89 mag); both properties are deleterious to precise Doppler measurements. The velocities are indeed noisy, with scatter of 30 ms(-1), but exhibit a period and phase that are consistent with those implied by transit photometry. We securely detect the R-M effect, confirming the planet's existence and establishing its orbit as prograde. We measure an inclination between the projected planetary orbital axis and the projected stellar rotation axis of lambda = -26 degrees.4 +/- 10 degrees.1, indicating a significant inclination of the planetary orbit. R-M measurements of a large sample of transiting planets from Kepler will provide a statistically robust measure of the true distribution of spin-orbit orientations for hot Jupiters around F and early G stars.
C1 [Jenkins, Jon M.; Caldwell, Douglas A.; Chandrasekaran, Hema; Twicken, Joseph D.; Quintana, Elisa V.; Clarke, Bruce D.; Li, Jie; Tenenbaum, Peter; Wu, Hayley; Van Cleve, Jeffrey] NASA, Ames Res Ctr, SETI Inst, Moffett Field, CA 94035 USA.
[Marcy, Geoffrey W.; Basri, Gibor; Isaacson, Howard; Howard, Andrew W.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Cochran, William D.; Endl, Michael; MacQueen, Phillip] Univ Texas Austin, Austin, TX 78712 USA.
[Welsh, William F.; Orosz, Jerome A.] San Diego State Univ, San Diego, CA 92182 USA.
[Batalha, Natalie M.] San Jose State Univ, San Jose, CA 95192 USA.
[Buchhave, Lars A.; Geary, John C.; Latham, David W.; Sasselov, Dimitar D.; Meibom, Soren] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Buchhave, Lars A.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Brown, Timothy M.] Las Cumbres Observ Global Telescope, Goleta, CA 93117 USA.
[Dunham, Edward W.] Lowell Observ, Flagstaff, AZ 86001 USA.
[Fischer, Debra A.] Radcliffe Inst, Cambridge, MA USA.
[Fischer, Debra A.] Yale Univ, New Haven, CT USA.
[Gautier, Thomas N., III] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Gilliland, Ronald L.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Howell, Steve B.] Natl Opt Astron Observ, Tucson, AZ 85719 USA.
[Monet, David G.] USN Observ, Flagstaff, AZ 86001 USA.
[Allen, Christopher; Klaus, Todd C.; Middour, Christopher K.; McCauliff, Sean; Girouard, Forrest R.; Gunter, Jay P.; Wohler, Bill; Hall, Jennifer R.; Ibrahim, Khadeejah; Uddin, A. K. M. Kamal] NASA, Ames Res Ctr, Orbital Sci Corp, Moffett Field, CA 94035 USA.
[Wu, Michael S.] NASA, Ames Res Ctr, Bast Technol, Moffett Field, CA 94035 USA.
RP Jenkins, JM (reprint author), NASA, Ames Res Ctr, SETI Inst, Moffett Field, CA 94035 USA.
EM Jon.Jenkins@nasa.gov
RI Caldwell, Douglas/L-7911-2014; Howard, Andrew/D-4148-2015;
OI Caldwell, Douglas/0000-0003-1963-9616; Howard,
Andrew/0000-0001-8638-0320; Buchhave, Lars A./0000-0003-1605-5666;
Fischer, Debra/0000-0003-2221-0861
FU W. M. Keck Foundation; NASA's Science Mission Directorate; NASA
[NNX06AH52G]
FX Based in part on observations obtained at the W. M. Keck Observatory,
which is operated as a scientific partnership between the California
Institute of Technology, the University of California, and the National
Aeronautics and Space Administration. The Observatory was made possible
by the generous financial support of the W. M. Keck Foundation.; Funding
for this mission is provided by NASA's Science Mission Directorate. Many
people have contributed to the success of the Kepler Mission, and it is
impossible to acknowledge them all. Valuable advice and assistance were
provided by Willie Torres, Riley Duren, M. Crane, D. Ciardi, and Josh
Winn. Special technical help was provided by Carly Chubak, G. Mandushev,
and Josh Winn. We thank E. Bachtel and his team at Ball Aerospace for
their work on the Kepler photometer and R. Thompson for key
contributions to engineering, and C. Botosh for able management. G.W.M.
thanks and acknowledges support from NASA Cooperative Agreement
NNX06AH52G.
NR 74
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U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD DEC 1
PY 2010
VL 724
IS 2
BP 1108
EP 1119
DI 10.1088/0004-637X/724/2/1108
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679GE
UT WOS:000284149000021
ER
PT J
AU Dermer, CD
Razzaque, S
AF Dermer, Charles D.
Razzaque, Soebur
TI ACCELERATION OF ULTRA-HIGH-ENERGY COSMIC RAYS IN THE COLLIDING SHELLS OF
BLAZARS AND GAMMA-RAY BURSTS: CONSTRAINTS FROM THE FERMI GAMMA-RAY SPACE
TELESCOPE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmic rays; galaxies: active; galaxies: jets; gamma rays: galaxies;
radiation mechanisms: non-thermal; shock waves
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; LUMINOSITY FUNCTION;
PHOTOMESON PRODUCTION; POSSIBLE ASSOCIATION; EMISSION; GALAXIES;
CENTAURUS; COMPONENT; OBJECTS
AB Fermi Gamma-ray Space Telescope measurements of spectra, variability timescales, and maximum photon energies give lower limits to the apparent jet powers and, through gamma gamma opacity arguments, the bulk Lorentz factors of relativistic jets. The maximum cosmic-ray particle energy is limited by these two quantities in Fermi acceleration scenarios. Recent data are used to constrain the maximum energies of cosmic-ray protons and Fe nuclei accelerated in colliding shells of gamma-ray bursts (GRBs) and blazars. The Fermi results indicate that Fe rather than protons are more likely to be accelerated to ultra-high energies in active galactic nuclei (AGNs), whereas powerful GRBs can accelerate both protons and Fe to greater than or similar to 10(20) eV. Emissivity of nonthermal radiation from radio galaxies and blazars is estimated from the First Fermi AGN Catalog, and shown to favor BL Lac objects and FR1 radio galaxies over flat spectrum radio quasars, FR2 radio galaxies, and long-duration GRBs as the sources of ultra-high-energy cosmic rays.
C1 [Dermer, Charles D.; Razzaque, Soebur] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Dermer, CD (reprint author), USN, Res Lab, Div Space Sci, Code 7653, Washington, DC 20375 USA.
EM charles.dermer@nrl.navy.mil
FU Office of Naval Research and NASA Fermi Guest Investigator [NNG10PK07I,
NNG 10PE02I]
FX We thank R. Blandford, C. C. Cheung, D. Eichler, J. Finke, T. Piran, and
D. Wanderman for helpful discussions and correspondence, and acknowledge
useful comments by the referee. This work is supported by the Office of
Naval Research and NASA Fermi Guest Investigator grants NNG10PK07I and
NNG 10PE02I.
NR 65
TC 29
Z9 29
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 DEC 1
PY 2010
VL 724
IS 2
BP 1366
EP 1372
DI 10.1088/0004-637X/724/2/1366
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679GE
UT WOS:000284149000041
ER
PT J
AU Patsourakos, S
Vourlidas, A
Stenborg, G
AF Patsourakos, S.
Vourlidas, A.
Stenborg, G.
TI THE GENESIS OF AN IMPULSIVE CORONAL MASS EJECTION OBSERVED AT ULTRA-HIGH
CADENCE BY AIA ON SDO
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE Sun: activity; Sun: corona; Sun: coronal mass ejections (CMEs)
ID ACCELERATION; EVOLUTION; CMES
AB The study of fast, eruptive events in the low solar corona is one of the science objectives of the Atmospheric Imaging Assembly (AIA) imagers on the recently launched Solar Dynamics Observatory (SDO), which take full disk images in 10 wavelengths with arcsecond resolution and 12 s cadence. We study with AIA the formation of an impulsive coronal mass ejection (CME) which occurred on 2010 June 13 and was associated with an M1.0 class flare. Specifically, we analyze the formation of the CME EUV bubble and its initial dynamics and thermal evolution in the low corona using AIA images in three wavelengths (171 angstrom, 193 angstrom, and 211 angstrom). We derive the first ultra-high cadence measurements of the temporal evolution of the CME bubble aspect ratio (=bubble height/bubble radius). Our main result is that the CME formation undergoes three phases: it starts with a slow self-similar expansion followed by a fast but short-lived (similar to 70 s) period of strong lateral overexpansion which essentially creates the CME. Then the CME undergoes another phase of self-similar expansion until it exits the AIA field of view. During the studied interval, the CME height-time profile shows a strong, short-lived, acceleration followed by deceleration. The lateral overexpansion phase coincides with the deceleration phase. The impulsive flare heating and CME acceleration are closely coupled. However, the lateral overexpansion of the CME occurs during the declining phase and is therefore not linked to flare reconnection. In addition, the multi-thermal analysis of the bubble does not show significant evidence of temperature change.
C1 [Patsourakos, S.] Univ Ioannina, Dept Phys, Sect Astrogeophys, GR-45110 Ioannina, Greece.
[Vourlidas, A.] USN, Res Lab, Washington, DC 20375 USA.
[Stenborg, G.] Interferometrics Inc, Herdon, VA USA.
RP Patsourakos, S (reprint author), Univ Ioannina, Dept Phys, Sect Astrogeophys, POB 1186, GR-45110 Ioannina, Greece.
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
NR 20
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U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD DEC 1
PY 2010
VL 724
IS 2
BP L188
EP L193
DI 10.1088/2041-8205/724/2/L188
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679GU
UT WOS:000284150700013
ER
PT J
AU Lock, RJ
Vaidyanathan, R
Burgess, SC
Loveless, J
AF Lock, Richard J.
Vaidyanathan, Ravi
Burgess, Stuart C.
Loveless, John
TI Development of a biologically inspired multi-modal wing model for
aerial-aquatic robotic vehicles through empirical and numerical
modelling of the common guillemot, Uria aalge
SO BIOINSPIRATION & BIOMIMETICS
LA English
DT Article
ID SPEEDS; FLIGHT; FOILS
AB The common guillemot, Uria aalge, a member of the auk family of seabirds exhibits locomotive capabilities in both aerial and aquatic substrates. Simplistic forms of this ability have yet to be achieved by robotic vehicle designs and offer significant potential as inspiration for future concept designs. In this investigation, we initially investigate the power requirements of the guillemot associated with different modes of locomotion, empirically determining the saving associated with the retraction of the wing during aquatic operations. A numerical model of a morphing wing is then created to allow power requirements to be determined for different wing orientations, taking into account the complex kinematic and inertial dynamics associated with the motion. Validation of the numerical model is achieved by comparisons with the actual behaviour of the guillemot, which is done by considering specific mission tasks, where by the optimal solutions are found utilizing an evolutionary algorithm, which are found to be in close agreement with the biological case.
C1 [Lock, Richard J.; Vaidyanathan, Ravi; Burgess, Stuart C.] Univ Bristol, Dept Mech Engn, Bristol Robot Lab, Bristol BS8 1TR, Avon, England.
[Vaidyanathan, Ravi] USN, Postgrad Sch, Dept Syst Engn, Monterey, CA 93930 USA.
[Loveless, John] Univ Bristol, Dept Civil Engn, Bristol BS8 1TR, Avon, England.
RP Lock, RJ (reprint author), Univ Bristol, Dept Mech Engn, Bristol Robot Lab, Bristol BS8 1TR, Avon, England.
EM richard.lock@bristol.ac.uk; r.vaidyanathan@bristol.ac.uk;
s.c.burgess@bristol.ac.uk; J.Loveless@bristol.ac.uk
FU UK Engineering and Physical Sciences Research Council (EPSRC)
FX The authors thank the Bristol Robotics Laboratory (BRL) for the use of
their rapid prototyping machine. Thanks also go to Ed Charles from the
Natural History Unit, BBC Bristol for providing footage and images that
have been a great help during the research. This research was supported
by the UK Engineering and Physical Sciences Research Council (EPSRC) and
its Doctoral Training Assistantship (DTA) Program.
NR 26
TC 9
Z9 9
U1 2
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1748-3182
J9 BIOINSPIR BIOMIM
JI Bioinspir. Biomim.
PD DEC
PY 2010
VL 5
IS 4
AR 046001
DI 10.1088/1748-3182/5/4/046001
PG 15
WC Engineering, Multidisciplinary; Materials Science, Biomaterials;
Robotics
SC Engineering; Materials Science; Robotics
GA 684TW
UT WOS:000284574000011
PM 21057174
ER
PT J
AU Bjorkstedt, EP
Goericke, R
McClatchie, S
Weber, E
Watson, W
Lo, N
Peterson, B
Emmett, B
Peterson, J
Durazo, R
Gaxiola-Castro, G
Chavez, F
Pennington, JT
Collins, CA
Field, J
Ralston, S
Sakuma, K
Bograd, SJ
Schwing, FB
Xue, Y
Sydeman, WJ
Thompson, SA
Santora, JA
Largier, J
Halle, C
Morgan, S
Kim, SY
Merkens, KPB
Hildebrand, JA
Munger, LM
AF Bjorkstedt, Eric P.
Goericke, Ralf
McClatchie, Sam
Weber, Ed
Watson, William
Lo, Nancy
Peterson, Bill
Emmett, Bob
Peterson, Jay
Durazo, Reginaldo
Gaxiola-Castro, Gilberto
Chavez, Francisco
Pennington, J. T.
Collins, C. A.
Field, John
Ralston, Steve
Sakuma, Keith
Bograd, Steven J.
Schwing, Franklin B.
Xue, Yan
Sydeman, William J.
Thompson, Sarah Ann
Santora, Jarrod A.
Largier, John
Halle, Chris
Morgan, Steven
Kim, Sung Yong
Merkens, Karlina P. B.
Hildebrand, John A.
Munger, Lisa M.
TI STATE OF THE CALIFORNIA CURRENT 2009-2010: REGIONAL VARIATION PERSISTS
THROUGH TRANSITION FROM LA NINA TO EL NINO (AND BACK?)
SO CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS
LA English
DT Article
AB This report summarizes observations of the California Current System (CCS) from Baja California, Mexico to Oregon for the period from spring 2009 through spring 2010. During this period, changes in the state of the CCS reflected a transition from cool La Nina conditions into and through a short-lived, relatively weak El Nino event. Weaker than normal upwelling and several extended relaxation events contributed to warming over much of the CCS during summer 2009, especially in the north. Moderation of La Nina conditions in the CCS coincided with the development of El Nino conditions in the equatorial Pacific, yet manifested well in advance of any evidence for direct effects of El Nino on the CCS. Responses to El Nino in fall 2009 and winter 2009-2010 appear to have varied substantially with latitude: conditions off southern California returned to near climatological values with the decline of La Nina, and did not indicate any subsequent response to El Nino, yet the northern CCS warmed subtantially following the decline of La Nina and was strongly affected by intense downwelling during winter 2009-2010. The 2009-2010 El Nino diminished rapidly in early 2010, and upwelling off central and southern California resumed unusually early and strongly for a spring following an El Nino, but recovery from El Nino in early 2010 appears to be less robust in the northern CCS. Thus, despite dynamic changes in the overall state of the California Current, 2009-2010 continued the recent pattern of strong regional variability across the CCS.
C1 [Bjorkstedt, Eric P.] NOAA, SW Fisheries Sci Ctr, Fisheries Ecol Div, Fisheries Serv, Trinidad, CA 95570 USA.
[Bjorkstedt, Eric P.] Humboldt State Univ, Dept Fisheries Biol, Trinidad, CA 95570 USA.
[Goericke, Ralf; Kim, Sung Yong; Merkens, Karlina P. B.; Hildebrand, John A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[McClatchie, Sam; Weber, Ed; Watson, William; Lo, Nancy] NOAA, SW Fisheries Sci Ctr, Fisheries Serv, La Jolla, CA 92037 USA.
[Peterson, Bill; Emmett, Bob] NOAA, NW Fisheries Sci Ctr, Hatfield Marine Sci Ctr, Fisheries Serv, Newport, OR 97365 USA.
[Peterson, Jay] Oregon State Univ, Hatfield Marine Sci Ctr, Cooperat Inst Marine Resource Studies, Newport, OR 97365 USA.
[Durazo, Reginaldo] UABC Fac Ciencias Marinas, Ensenada, BC, Mexico.
[Gaxiola-Castro, Gilberto] CICESE Dept Oceanog Biol, Ensenada, BC, Mexico.
[Chavez, Francisco; Pennington, J. T.] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA.
[Collins, C. A.] USN, Postgrad Sch, Monterey, CA 93943 USA.
[Field, John; Ralston, Steve; Sakuma, Keith] NOAA, Fisheries Serv, SW Fisheries Sci Ctr, Fisheries Ecol Div, Santa Cruz, CA 95060 USA.
[Bograd, Steven J.; Schwing, Franklin B.] NOAA, Fisheries Serv, SW Fisheries Sci Ctr, Div Environm Res, Pacific Grove, CA 93950 USA.
[Xue, Yan] Natl Ocean Atmospher Adm, Natl Weather Serv, Natl Ctr Environm Predict, Climate Predict Ctr, Camp Springs, MD USA.
[Sydeman, William J.; Thompson, Sarah Ann; Santora, Jarrod A.] Farallon Inst Adv Ecosyst Res, Petaluma, CA 94975 USA.
[Largier, John; Halle, Chris; Morgan, Steven] Bodega Bay Marine Lab, Bodega Bay, CA 94923 USA.
[Munger, Lisa M.] NOAA, Fisheries Serv, Pacific Isl Fisheries Sci Ctr, Coral Reef Ecosyst Div, Honolulu, HI 96814 USA.
RP Bjorkstedt, EP (reprint author), NOAA, SW Fisheries Sci Ctr, Fisheries Ecol Div, Fisheries Serv, POB 690, Trinidad, CA 95570 USA.
RI Merkens, Karlina/I-9062-2012; Kim, Sung Yong/B-9852-2009; Weber,
Edward/A-6986-2009
OI Merkens, Karlina/0000-0002-5314-6148; Kim, Sung
Yong/0000-0003-1962-8992; Weber, Edward/0000-0002-0942-434X
FU CICESE; SEMARNAT-CONACYT [23804]; UCMEXUS [CN07-125]; SEP-CONACYT
[23804, 23947]; Sonoma County Water Agency; NOAA; CeNCOOS; UC Davis;
NOAA Fisheries Service; California Ocean Protection Council; CAMEO;
California Sea Grant; NSF; NASA; State of California under the Coastal
Ocean Currents Monitoring Program (COCMP); National Oceanic and
Atmospheric Administration (NOAA); National Science Foundation (NSF);
Office of Naval Research (ONR)
FX IMECOCAL surveys were supported by CICESE, SEMARNAT-CONACYT 23804,
UCMEXUS (CN07-125), and SEP-CONACYT 23947 and 23804 projects. Recent
CalCOFI surveys were greatly assisted by the captains and crews of the
NOAA ships Mac-Arthur II and Miller Freeman and the R/V New Horizon.
Central California observations were supported by the David and Lucile
Packard Foundation and NOAA. Bodega Line surveys were supported by the
Sonoma County Water Agency, NOAA, CeNCOOS and UC Davis and could not
have been collected without Captain Steve Neil and crew of the R/V
Mussel Point. Anne Slaughter analyzed Bodega copepod samples. Trinidad
Head Line surveys were supported by NOAA Fisheries Service and the
California Ocean Protection Council and by the able efforts of Captain
Scott Martin and the crew of the R/V Coral Sea, Kathryn Crane, Jose
Montoya, and the many HSU students and volunteers who sailed on these
cruises. Observations along the Newport Hydrographic Line and off the
OR-WA coast were supported in part by NOAA's FATE and SAIP programs and
CAMEO. Seabird surveys in recent years were supported by grants from the
California Ocean Protection Council, California Sea Grant, NOAA, NSF,
and NASA. HF radar mapping ocean surface currents has been sponsored by
the State of California under the Coastal Ocean Currents Monitoring
Program (COCMP), the National Oceanic and Atmospheric Administration
(NOAA), the National Science Foundation (NSF), Office of Naval Research
(ONR). HF radar data were provided by Scripps Institution of
Oceanography at University of California, San Diego; University of
Southern California; Marine Science Institute at University of
California, Santa Barbara; California Polytechnic State University;
Naval Postgraduate School; Romberg Tiburon Center at San Francisco State
University; Humboldt State University; Bodega Marine Laboratory at
University of California, Davis; and Oregon State University.
NR 57
TC 35
Z9 35
U1 1
U2 9
PU SCRIPPS INST OCEANOGRAPHY
PI LA JOLLA
PA A-003, LA JOLLA, CA 92093 USA
SN 0575-3317
J9 CAL COOP OCEAN FISH
JI Calif. Coop. Ocean. Fish. Invest. Rep.
PD DEC
PY 2010
VL 51
BP 39
EP 69
PG 31
WC Fisheries
SC Fisheries
GA V24JY
UT WOS:000208407900002
ER
PT J
AU Young, PE
Gentry, AB
Acosta, RD
Greenwald, BD
Riddle, M
AF Young, Patrick E.
Gentry, Andrew B.
Acosta, Ruben D.
Greenwald, Bruce D.
Riddle, Mark
TI Endoscopic Ultrasound Does Not Accurately Stage Early Adenocarcinoma or
High-Grade Dysplasia of the Esophagus
SO CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
LA English
DT Article
DE Endosonography; Esophageal Cancer; Barrett's Esophagus; Staging
ID FINE-NEEDLE-ASPIRATION; BARRETTS-ESOPHAGUS; MUCOSAL RESECTION;
INTRAMUCOSAL ADENOCARCINOMA; INTEROBSERVER AGREEMENT; MUSCULARIS
MUCOSAE; SPRAY CRYOTHERAPY; CLINICAL IMPACT; EARLY CANCER; EUS
AB BACKGROUND & AIMS: Patients with esophageal high-grade dysplasia or mucosal esophageal cancer can be successfully treated by endoscopy. We performed a systematic review of the literature to determine whether endoscopic ultrasound (EUS) correctly predicts the T-stage of early esophageal cancers, compared with pathology specimens obtained by using endoscopic mucosal resection (EMR) or surgery. METHODS: Standard systematic review methods were used to perform reference searches, determine eligibility, abstract data, and analyze data. When possible, individual patient-level data were abstracted, in addition to publication-level aggregate data. RESULTS: Twelve studies had sufficient information to abstract and review for quality; 8 had individual patient-level data (n = 132). Compared with surgical or EMR pathology staging, EUS had T-stage concordance of 65%, including all studies (n = 12), but only 56% concordance when limited to individual patient-level data. Factors such as initial biopsy pathology (high-grade dysplasia vs early-stage cancer) did not appear to affect the concordance of staging between EUS and EMR/surgical staging. CONCLUSIONS: EUS is not sufficiently accurate in determining the T-stage of high-grade dysplasias or superficial adenocarcinomas; other means of staging, such as EMR, should be used.
C1 [Young, Patrick E.] Natl Naval Med Ctr, CDR MC FS USN, Div Gastroenterol, Bethesda, MD 20889 USA.
[Young, Patrick E.; Gentry, Andrew B.; Acosta, Ruben D.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Gentry, Andrew B.] USN, Med Ctr, Portsmouth, VA USA.
[Greenwald, Bruce D.] Univ Maryland, Baltimore, MD 21201 USA.
[Riddle, Mark] USN, Med Res Ctr, Silver Spring, MD USA.
RP Young, PE (reprint author), Natl Naval Med Ctr, CDR MC FS USN, Div Gastroenterol, 8901 Wisconsin Ave,Bldg1, Bethesda, MD 20889 USA.
EM patrick.young2@med.navy.mil
RI Riddle, Mark/A-8029-2011
NR 53
TC 52
Z9 54
U1 1
U2 1
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1542-3565
J9 CLIN GASTROENTEROL H
JI Clin. Gastroenterol. Hepatol.
PD DEC
PY 2010
VL 8
IS 12
BP 1037
EP 1041
DI 10.1016/j.cgh.2010.08.020
PG 5
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 695ZU
UT WOS:000285412500013
PM 20831900
ER
PT J
AU Kortepeter, MG
Seaworth, BJ
Tasker, SA
Burgess, TH
Coldren, RL
Aronson, NE
AF Kortepeter, Mark G.
Seaworth, Barbara J.
Tasker, Sybil A.
Burgess, Timothy H.
Coldren, Rodney L.
Aronson, Naomi E.
TI Health Care Workers and Researchers Traveling to Developing-World
Clinical Settings: Disease Transmission Risk and Mitigation
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Article
ID DRUG-RESISTANT TUBERCULOSIS; ACUTE RESPIRATORY SYNDROME;
INFLUENZA-VIRUS; POSTEXPOSURE PROPHYLAXIS; HEMORRHAGIC-FEVER;
INFECTION-CONTROL; SOUTH-AFRICA; EXPOSURE; TEMPERATURE; SURVIVAL
AB With the recent emphasis on funding and training opportunities for global health and humanitarian aid and the increased interest in the field, many health care workers and medical researchers are traveling from resource-replete to resource-limited settings. This type of travel brings unique disease risks not routinely considered for the business or vacationing traveler. This review provides practical advice for this special population of travelers, targeted to specific health care-related risks (needlestick, hemorrhagic fever viruses, severe viral respiratory disease, and tuberculosis), with suggestions for risk mitigation.
C1 [Kortepeter, Mark G.; Coldren, Rodney L.; Aronson, Naomi E.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Burgess, Timothy H.] USN, Med Res Ctr, Silver Spring, MD USA.
[Seaworth, Barbara J.] Univ Texas Hlth Ctr Tyler, Tyler, TX USA.
[Tasker, Sybil A.] Pharmaceut Prod Dev Inc, Wilmington, NC USA.
RP Aronson, NE (reprint author), Uniformed Serv Univ Hlth Sci, Room A3060,4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM naronson@usuhs.mil
NR 57
TC 8
Z9 8
U1 0
U2 5
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 1058-4838
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD DEC 1
PY 2010
VL 51
IS 11
BP 1298
EP 1305
DI 10.1086/657115
PG 8
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 675RZ
UT WOS:000283850200014
PM 21039283
ER
PT J
AU Axelrod, DA
Dzebisashvili, N
Schnitzler, MA
Salvalaggio, PR
Segev, DL
Gentry, SE
Tuttle-Newhall, J
Lentine, KL
AF Axelrod, David A.
Dzebisashvili, Nino
Schnitzler, Mark A.
Salvalaggio, Paolo R.
Segev, Dorry L.
Gentry, Sommer E.
Tuttle-Newhall, Janet
Lentine, Krista L.
TI The Interplay of Socioeconomic Status, Distance to Center, and
Interdonor Service Area Travel on Kidney Transplant Access and Outcomes
SO CLINICAL JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY
LA English
DT Article
ID RENAL-TRANSPLANTATION; LIVER-TRANSPLANTATION; RACIAL DISPARITIES;
GEOGRAPHIC DIFFERENCES; UNITED-STATES; DISEASE; RATES; INSURANCE;
DIALYSIS; PATIENT
AB Background and objectives: Variation in kidney transplant access across the United States may motivate relocation of patients with ability to travel to better-supplied areas.
Design, setting, participants, & measurements: We examined national transplant registry and U.S. Census data for kidney transplant candidates listed in 1999 to 2009 with a reported residential zip code (n = 203,267). Cox's regression was used to assess associations of socioeconomic status (SES), distance from residence to transplant center, and relocation to a different donation service area (DSA) with transplant access and outcomes.
Results: Patients in the highest SES quartile had increased access to transplant compared with those with lowest SES, driven strongly by 76% higher likelihood of living donor transplantation (adjusted hazard ratio [aHR] 1.76, 95% confidence interval [CI] 1.70 to 1.83). Waitlist death was reduced in high compared with low SES candidates (aHR 0.86, 95% CI 0.84 to 0.89). High SES patients also experienced lower mortality after living and deceased donor transplant. Patients living farther from the transplant center had reduced access to deceased donor transplant and increased risk of post-transplant death. Inter-DSA travel was associated with a dramatic increase in deceased donor transplant access (HR 1.94, 95% CI 1.88 to 2.00) and was predicted by high SES, white race, and longer deceased-donor allograft waiting time in initial DSA.
Conclusions: Ongoing disparities exist in kidney transplantation access and outcomes on the basis of geography and SES despite near-universal insurance coverage under Medicare. Inter-DSA travel improves access and is more common among high SES candidates. Clin J Am Soc Nephrol 5: 2276-2288, 2010 doi: 10.2215/CJN.04940610
C1 [Dzebisashvili, Nino; Schnitzler, Mark A.; Lentine, Krista L.] St Louis Univ, Sch Med, Ctr Outcomes Res, St Louis, MO 63104 USA.
[Tuttle-Newhall, Janet] St Louis Univ, Sch Med, Dept Surg, St Louis, MO 63104 USA.
[Axelrod, David A.] Dartmouth Hitchcock Med Ctr, Dept Surg, Hanover, NH USA.
[Salvalaggio, Paolo R.] Univ Washington, Kidney & Pancreas Transplant Program, Seattle, WA 98195 USA.
[Segev, Dorry L.] Johns Hopkins Univ, Dept Surg, Baltimore, MD USA.
[Gentry, Sommer E.] USN Acad, Dept Math, Baltimore, MD USA.
RP Lentine, KL (reprint author), St Louis Univ, Sch Med, Ctr Outcomes Res, 3545 Lafayette Ave, St Louis, MO 63104 USA.
EM lentinek@slu.edu
OI Gentry, Sommer/0000-0003-4530-8917
FU National Institute of Diabetes Digestive and Kidney Diseases (NIDDK)
[RC1 1RC1DK086450-01, K08DK073036]; Hitchcock Foundation
FX This work was supported by an American Recovery and Reinvestment Act
grant from the National Institute of Diabetes Digestive and Kidney
Diseases (NIDDK; RC1 1RC1DK086450-01). Dr. Axelrod was supported by a
grant from the Hitchcock Foundation. Dr. Lentine also received career
development support from NIDDK grant (K08DK073036). An abstract
describing portions of this work was presented at the American
Transplant Congress in Boston, MA, May 30 through June 3, 2009. Data
reported here were supplied by UNOS as the contractor for OPTN. The
interpretation and reporting of these data are the responsibility of the
authors and in no way should be seen as an official policy of or
interpretation by OPTN, the U.S. Government, NIDDK, or the National
Institutes of Health.
NR 27
TC 58
Z9 59
U1 0
U2 7
PU AMER SOC NEPHROLOGY
PI WASHINGTON
PA 1725 I ST, NW STE 510, WASHINGTON, DC 20006 USA
SN 1555-9041
J9 CLIN J AM SOC NEPHRO
JI Clin. J. Am. Soc. Nephrol.
PD DEC
PY 2010
VL 5
IS 12
BP 2276
EP 2288
DI 10.2215/CJN.04940610
PG 13
WC Urology & Nephrology
SC Urology & Nephrology
GA 691LA
UT WOS:000285080100021
PM 20798250
ER
PT J
AU Denning, PJ
Kahn, RE
AF Denning, Peter J.
Kahn, Robert E.
TI The Profession of IT The Long Quest for Universal Information Access
SO COMMUNICATIONS OF THE ACM
LA English
DT Editorial Material
C1 [Denning, Peter J.] USN, Postgrad Sch, Cebrowski Inst Innovat & Informat Superior, Monterey, CA 93943 USA.
[Kahn, Robert E.] Corp Natl Res Initiat, Reston, VA 20191 USA.
RP Denning, PJ (reprint author), USN, Postgrad Sch, Cebrowski Inst Innovat & Informat Superior, Monterey, CA 93943 USA.
EM pjd@nps.edu; rkahn@cnri.reston.va.us
NR 5
TC 1
Z9 1
U1 0
U2 1
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 0001-0782
J9 COMMUN ACM
JI Commun. ACM
PD DEC
PY 2010
VL 53
IS 12
BP 34
EP 36
DI 10.1145/1859204.1859218
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA 697SV
UT WOS:000285537800022
ER
PT J
AU Qian, H
Shaw, PT
Ko, DS
AF Qian, Hui
Shaw, Ping-Tung
Ko, Dong Shan
TI Generation of internal waves by barotropic tidal flow over a steep ridge
SO DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
LA English
DT Article
DE Internal wave generation; Barotropic tides; Ridges; Luzon Strait
ID LUZON STRAIT; CONVERSION; TIDES; OCEAN; TOPOGRAPHY; SOLITONS; MODEL; BAY
AB A three-dimensional nonhydrostatic numerical model is used to study the generation of Internal waves the barotropic tidal flow over a steep two-dimensional ridge in an ocean with strong upper-ocean The process is examined by varying topographic width amplitude of the barotropic tide stratification at three ridge heights The results show that a large amount of energy is converted the barotropic tide to the baroclinic wave when the slope parameter defined as the ratio of the ridge slope to the maximum wave slope is greater than 1 The energy flux of internal waves be normalized by the vertical integral of the buoyancy frequency over the ridge depths and the energy of the barotropic tides in the water column A relationship between the normalized flux and the slope parameter is derived The normalized energy flux reaches a constant value of the slope parameter when the slope parameter is greater than 1 5 It is inferred that wave generation is most efficient at the presence of strong upper-ocean stratification over a tall ridge In the Luzon Strait the strength of the shallow thermocline and the location of the front could affect generation of Internal solitary waves in the northern South China Sea (C) 2010 Elsevier Ltd All rights reserved
C1 [Qian, Hui; Shaw, Ping-Tung] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
[Ko, Dong Shan] USN, Div Oceanog, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Shaw, PT (reprint author), N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Box 8208, Raleigh, NC 27695 USA.
FU Office of Naval Research of the US Navy [N00014-05-1-0280,
N00014-10-1-0319]
FX Suggestions provided by two reviewers help improve the manuscript The
research is supported by the Office of Naval Research of the US Navy
under Contracts N00014-05-1-0280 and N00014-10-1-0319
NR 28
TC 9
Z9 9
U1 0
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0967-0637
J9 DEEP-SEA RES PT I
JI Deep-Sea Res. Part I-Oceanogr. Res. Pap.
PD DEC
PY 2010
VL 57
IS 12
BP 1521
EP 1531
DI 10.1016/j.dsr.2010.09.001
PG 11
WC Oceanography
SC Oceanography
GA 696HI
UT WOS:000285432100001
ER
PT J
AU Simon, LV
Carstairs, KL
Reardon, JM
Rudinsky, SL
Riffenburgh, RH
Tanen, DA
AF Simon, Leslie V.
Carstairs, Keri L.
Reardon, Jacqueline M.
Rudinsky, Sherri L.
Riffenburgh, Robert H.
Tanen, David A.
TI Oxygen saturation is not clinically useful in the exclusion of bacterial
pneumonia in febrile infants
SO EMERGENCY MEDICINE JOURNAL
LA English
DT Article
ID CHILDREN; MANAGEMENT; SYMPTOMS; SIGNS; FEVER; AGE
AB Background Acute respiratory infection remains a common presentation to Emergency Departments. Oxygen saturations (Sao(2)) may be useful in determining which febrile infants require chest x-rays (CXR) in investigation for bacterial pneumonia (PNA). This study aimed to determine whether Sao(2) is clinically useful in excluding bacterial PNA in febrile infants <24 months.
Methods A febrile infant registry was instituted at a tertiary care military hospital (55 000 annual patients, 27% children) from December 2002-December 2003. Eligible patients consisted of infants <3 months with temperature >= 38 degrees C or 3-24 months with temperature >= 39 degrees C. Bacterial PNA was defined in this cohort by a CXR revealing a 'lobar infiltrate' by a board-certified radiologist. Descriptive statistics are presented on groups who received CXR versus groups who did not, and on infants who had bacterial PNA versus those who did not. Student t tests were used to compare maximum temperature (Tmax), RR, and Sao(2). Logistic regression for PNA was performed using age, sex, Tmax, RR, HR and Sao(2). A Receiver Operator Characteristic (ROC) curve was created to show Sao(2) cut-off points as related to sensitivity and specificity.
Results 985 patients (55% boys; median age: 12 months) met entry criteria. 790 underwent CXR and 82 were diagnosed with bacterial PNA. Sao(2) was lower in infants with bacterial PNA (96.6% +/- 2.5% vs 97.7% +/- 1.8%, p<0.001). Sao(2) was also predictive of bacterial PNA by logistic regression (p=0.017) but the ROC curve yielded a poor sensitivity/specificity profile (area under curve (AUC) of 0.6786).
Conclusions In febrile infants, Sao(2) was not found to be clinically useful for excluding bacterial PNA.
C1 [Riffenburgh, Robert H.] USN, Med Ctr, Clin Invest Dept, San Diego, CA 92134 USA.
[Simon, Leslie V.; Carstairs, Keri L.; Reardon, Jacqueline M.; Rudinsky, Sherri L.; Tanen, David A.] USN, Dept Emergency Med, San Diego, CA 92134 USA.
RP Tanen, DA (reprint author), USN, San Diego Med Ctr, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM David.tanen@med.navy.mil
FU Bureau of Medicine and Surgery, Navy Department, Washington, DC
[S-05-75]
FX The Chief, Bureau of Medicine and Surgery, Navy Department, Washington,
DC, Clinical Investigations Program, sponsored this report #S-05-75 as
required by NSHBETHINST 6000.41B.
NR 15
TC 2
Z9 2
U1 0
U2 0
PU B M J PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1472-0205
J9 EMERG MED J
JI Emerg. Med. J.
PD DEC
PY 2010
VL 27
IS 12
BP 904
EP 906
DI 10.1136/emj.2008.069047
PG 3
WC Emergency Medicine
SC Emergency Medicine
GA 693RC
UT WOS:000285241800005
PM 20871096
ER
PT J
AU Willauer, HD
Hardy, DR
Lewis, MK
Ndubizu, EC
Williams, FW
AF Willauer, Heather D.
Hardy, Dennis R.
Lewis, M. Kathleen
Ndubizu, Ejiogu C.
Williams, Frederick W.
TI Extraction of CO2 from Seawater and Aqueous Bicarbonate Systems by
Ion-Exchange Resin Processes
SO ENERGY & FUELS
LA English
DT Article
ID GAS-PERMEABLE MEMBRANES; PHASE-TRANSITION; RECOVERY; PRESSURE
AB Ion-exchange resins in dynamic seawater and model bicarbonate systems were studied to determine their feasibility and practicality for extracting large quantities of carbon dioxide from seawater for use as a carbon feedstock for fuel synthesis. The capacity and selectivity of both a strong acid cation-exchange resin and a strong base anion-exchange resin revealed that the cation-exchange resin total carbon dioxide recovery (0.32 mg/g of resin) was far superior to the anion-exchange capacity (0.07 mg/g of resin). In addition, the ease of regeneration of the cation-exchange resin was demonstrated using deionized water as a possible substitute for strong acids. The laboratory-scale data are used to estimate the full industrial-scale feasibility of a carbon-capture process by these approaches.
C1 [Willauer, Heather D.; Hardy, Dennis R.; Ndubizu, Ejiogu C.; Williams, Frederick W.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Lewis, M. Kathleen] Off Naval Res, Arlington, VA 22203 USA.
[Lewis, M. Kathleen] Luzerne Cty Community Coll, Nanticoke, PA 18634 USA.
RP Willauer, HD (reprint author), USN, Div Chem, Res Lab, Code 6180,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM heather.willauer@nrl.navy.mil
FU Office of Naval Research through Naval Research Laboratory
FX This work was supported by the Office of Naval Research both directly
and through the Naval Research Laboratory. The authors acknowledge the
valuable input from Professor Kathleen Hardy of St. Mary's College of
Maryland.
NR 19
TC 5
Z9 5
U1 1
U2 22
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 DEC
PY 2010
VL 24
BP 6682
EP 6688
DI 10.1021/ef101212e
PG 7
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 694AF
UT WOS:000285266000058
ER
PT J
AU Jeffords, RD
Heitmeyer, CL
Archer, MM
Leonard, EI
AF Jeffords, Ralph D.
Heitmeyer, Constance L.
Archer, Myla M.
Leonard, Elizabeth I.
TI Model-based construction and verification of critical systems using
composition and partial refinement
SO FORMAL METHODS IN SYSTEM DESIGN
LA English
DT Article
DE Formal specification; Refinement; Composition; Proof rules;
Fault-tolerance; Theorem proving; Masking
ID SPECIFICATIONS; REQUIREMENTS
AB This article introduces a new model-based method for incrementally constructing critical systems and illustrates its application to the development of fault-tolerant systems. The method relies on a special form of composition to combine software components and a set of proof rules to obtain high confidence of the correctness of the composed system. As in conventional component-based software development, two (or more) components are combined, but in contrast to many component-based approaches used in practice, which combine components consisting of code, our method combines components represented as state machine models. In the first phase of the method, a model is developed of the normal system behavior, and system properties are shown to hold in the model. In the second phase, a model of the required fault-handling behavior is developed and "or-composed" with the original system model to create a fault-tolerant extension which is, by construction, "fully faithful" (every execution possible in the normal system is possible in the fault-tolerant system). To model the fault-handling behavior, the set of states of the normal system model is extended through new state variables and new ranges for some existing state variables, and new fault-handling transitions are defined. Once constructed, the fault-tolerant extension is shown, using a set of property inheritance and compositional proof rules, to satisfy both the overall system properties, typically weakened, and selected fault-tolerance properties. These rules can often be used to verify the properties automatically. To provide a formal foundation for the method, formal notions of or-composition, partial refinement, fault-tolerant extension, and full faithfulness are introduced. To demonstrate and validate the method, we describe its application to a real-world, fault-tolerant avionics system.
C1 [Jeffords, Ralph D.; Heitmeyer, Constance L.; Archer, Myla M.; Leonard, Elizabeth I.] USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
RP Jeffords, RD (reprint author), USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
EM jeffords@itd.nrl.navy.mil
RI Heitmeyer, Constance/F-6500-2011;
OI Heitmeyer, Constance/0000-0001-7942-9309
FU Office of Naval Research
FX This research is supported by the Office of Naval Research.
NR 41
TC 0
Z9 0
U1 0
U2 1
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0925-9856
EI 1572-8102
J9 FORM METHOD SYST DES
JI Form. Methods Syst. Des.
PD DEC
PY 2010
VL 37
IS 2-3
BP 265
EP 294
DI 10.1007/s10703-010-0106-9
PG 30
WC Computer Science, Theory & Methods
SC Computer Science
GA 711ZQ
UT WOS:000286631700006
ER
PT J
AU Satter, EK
Walters, MC
Hurt, M
Bolton, JG
Dever, T
AF Satter, E. K.
Walters, M. C.
Hurt, M.
Bolton, J. G.
Dever, T.
TI A brief overview of the most common histiocytic disorders
SO GIORNALE ITALIANO DI DERMATOLOGIA E VENEREOLOGIA
LA English
DT Review
DE Histiocytosis; Histiocytosis, langerhans-cell; Histiocytosis,
non-langerhans-cell; Histiocytic sarcoma
ID LANGERHANS CELL HISTIOCYTOSIS; GENERALIZED ERUPTIVE HISTIOCYTOMA; BENIGN
CEPHALIC HISTIOCYTOSIS; ROSAI-DORFMAN-DISEASE; PROGRESSIVE NODULAR
HISTIOCYTOSIS; PRIMARY PAPULAR XANTHOMA; OF-THE-LITERATURE; NECROBIOTIC
XANTHOGRANULOMA; JUVENILE XANTHOGRANULOMA; MASSIVE LYMPHADENOPATHY
AB Histiocytosis refers to a diverse collection of disorders unified by a proliferation and accumulation of histiocytes into a variety of organs. The following review article will discuss and briefly describe the clinical and histological findings of some of the more common histiocytic disorders. The article is divided into sections according to the current classification system and prevalence of the condition.
C1 [Satter, E. K.] USN, Dept Dermatol, San Diego Med Ctr, San Diego, CA 92134 USA.
[Satter, E. K.] USN, Dept Pathol, San Diego Med Ctr, San Diego, CA 92134 USA.
RP Satter, EK (reprint author), USN, Dept Dermatol, San Diego Med Ctr, 34520 Bob Wilson Dr,Suite 300, San Diego, CA 92134 USA.
EM elizabeth.satter@med.navy.mil
NR 87
TC 1
Z9 2
U1 0
U2 2
PU EDIZIONI MINERVA MEDICA
PI TURIN
PA CORSO BRAMANTE 83-85 INT JOURNALS DEPT., 10126 TURIN, ITALY
SN 0026-4741
J9 GIORN ITAL DERMAT V
JI G. Ital. Dermatol. Venereol.
PD DEC
PY 2010
VL 145
IS 6
BP 717
EP 731
PG 15
WC Dermatology
SC Dermatology
GA 707PK
UT WOS:000286298300004
PM 21139549
ER
PT J
AU Kompella, S
Wieselthier, JE
Ephremides, A
Sherali, HD
Nguyen, GD
AF Kompella, Sastry
Wieselthier, Jeffrey E.
Ephremides, Anthony
Sherali, Hanif D.
Nguyen, Gam D.
TI On Optimal SINR-Based Scheduling in Multihop Wireless Networks
SO IEEE-ACM TRANSACTIONS ON NETWORKING
LA English
DT Article
DE Joint scheduling and routing; minimum-length scheduling; multihop
wireless networks; optimization; spatial-TDMA
AB In this paper, we revisit the problem of determining the minimum-length schedule that satisfies certain traffic demands in a wireless network. Traditional approaches for the determination of minimum-length schedules are based on a collision channel model, in which neighboring transmissions cause destructive interference if and only if they are within the "interference region" of the receiving nodes. By contrast, we adopt here a more realistic model for the physical layer by requiring that a threshold be exceeded by the signal-to-interference-plus-noise ratio (SINR) for a transmission to be successful. We present a novel formulation of the problem that incorporates various power and rate adaptation schemes while seamlessly integrating the generation of "matchings" (i.e., sets of links that can be activated simultaneously) by taking into consideration the SINR constraints at the receivers. For the formulated problem, we propose a column-generation-based solution method and show that it theoretically converges to a globally optimal solution, with a potential advantage of not having to enumerate all the feasible matchings a priori. We also discuss the influence of power control, spatial reuse, and variable transmission rates on network performance. Furthermore, we include aspects of the routing problem and provide computational results for our proposed column-generation-based solution procedure.
C1 [Kompella, Sastry] USN, Res Lab, Div Informat Technol, Washington, DC 20375 USA.
[Wieselthier, Jeffrey E.] Wieselthier Res, Silver Spring, MD 20901 USA.
[Ephremides, Anthony] Univ Maryland, Elect & Comp Engn Dept, College Pk, MD 20742 USA.
[Ephremides, Anthony] Univ Maryland, Syst Res Inst, College Pk, MD 20742 USA.
[Sherali, Hanif D.] Virginia Tech, Grado Dept Ind & Syst Engn, Blacksburg, VA 24061 USA.
RP Kompella, S (reprint author), USN, Res Lab, Div Informat Technol, Washington, DC 20375 USA.
EM sastry.kompella@nrl.navy.mil
FU ONR; NSF [CCF-0905204, CCF-0728966, CMMI-0969169]; ONR [N00140911164];
Army MURI [W911NF-05-1-0246]
FX The work of S. Kompella, J.E. Wieselthier, and G.D Nguyen was supported
by the ONR. The work of A. Ephremides was supported in part by NSF
grants CCF-0905204 and CCF-0728966, ONR Grant N00140911164, and Army
MURI Grant W911NF-05-1-0246. The work of H.D Sherali was supported by
NSF Grant CMMI-0969169.
NR 19
TC 36
Z9 37
U1 1
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1063-6692
J9 IEEE ACM T NETWORK
JI IEEE-ACM Trans. Netw.
PD DEC
PY 2010
VL 18
IS 6
BP 1713
EP 1724
DI 10.1109/TNET.2010.2048338
PG 12
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA 697MB
UT WOS:000285516600004
ER
PT J
AU Garfinkel, SL
Parker-Wood, A
Huynh, D
Migletz, J
AF Garfinkel, Simson L.
Parker-Wood, Aleatha
Huynh, Daniel
Migletz, James
TI An Automated Solution to the Multiuser Carved Data Ascription Problem
SO IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY
LA English
DT Article
DE Data mining; forensics; information security
ID DISPUTED FEDERALIST-PAPERS; AUTHORSHIP
AB This paper presents a novel solution to the problem of determining the ownership of carved information found on disk drives and other storage media that have been used by more than one person. When a computer is subject to forensic examination, information may be found that cannot be readily ascribed to a specific user. Such information is typically not located in a specific file or directory, but is found through file carving, which recovers data from unallocated disk sectors. Because the data is carved, it does not have associated file system metadata, and its owner cannot be readily ascertained. The technique presented in this paper starts by automatically recovering both file system metadata as well as extended metadata embedded in files (for instance, embedded timestamps) directly from a disk image. This metadata is then used to find exemplars and to create a machine learning classifier that can be used to ascertain the likely owner of the carved data. The resulting classifier is well suited for use in a legal setting since the accuracy can be easily verified using cross-validation. Our technique also results in a classifier that is easily validated by manual inspection. We report results of the technique applied to both specific hard drive data created in our laboratory and multiuser drives that we acquired on the secondary market. We also present a tool set that automatically creates the classifier and performs validation.
C1 [Garfinkel, Simson L.] USN, Postgrad Sch, Dept Comp Sci, Pacific Grove, CA 93950 USA.
[Parker-Wood, Aleatha] Univ Calif Santa Cruz, Dept Comp Sci, Santa Cruz, CA 95060 USA.
[Huynh, Daniel] US Mil Acad, Dept Comp Sci, West Point, NY 10096 USA.
[Migletz, James] US Marine Corps, Quantico, VA 22134 USA.
RP Garfinkel, SL (reprint author), USN, Postgrad Sch, Dept Comp Sci, Pacific Grove, CA 93950 USA.
EM simsong@acm.org
NR 18
TC 4
Z9 4
U1 0
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1556-6013
J9 IEEE T INF FOREN SEC
JI IEEE Trans. Inf. Forensic Secur.
PD DEC
PY 2010
VL 5
IS 4
BP 868
EP 882
DI 10.1109/TIFS.2010.2060484
PG 15
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA 681YG
UT WOS:000284360000024
ER
PT J
AU Cress, CD
McMorrow, JJ
Robinson, JT
Friedman, AL
Landi, BJ
AF Cress, Cory D.
McMorrow, Julian J.
Robinson, Jeremy T.
Friedman, Adam L.
Landi, Brian J.
TI Radiation Effects in Single-Walled Carbon Nanotube Thin-Film-Transistors
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Carbon electronics; carbon nanotube field effect transistor; radiation
effects; SWCNT-TFT; total ionizing dose (TID)
ID FIELD-EFFECT TRANSISTORS; ALIGNED ARRAYS; ELECTRICAL-PROPERTIES;
NETWORKS; IRRADIATION; PERFORMANCE; ELECTRONICS; HYSTERESIS; CIRCUITS;
RAMAN
AB The fabrication, characterization, and radiation response of single-walled carbon nanotube (SWCNT) thin-film field effect transistors (SWCNT-TFTs) has been performed. SWCNT-TFTs were fabricated on SiO2-Si substrates from 98% pure semiconducting SWCNTs separated by density gradient ultracentrifugation. Optical and Raman characterization, in concert with measured drain current I-on/I-off ratios, up to 10(4), confirmed the high enrichment of semiconducting-SWCNTs. Total ionizing dose (TID) effects, up to 10 MRads, were measured in situ for a SWCNT-TFT under static vacuum. The results revealed a lateral translation of the SWCNT-TFT transfer characteristics to negative gate bias resulting from hole trapping within the SiO2 and SiO2-SWCNT interface. Additional TID exposure conducted in air on the same device had the opposite effect, shifting the transfer characteristics to higher gate voltage, and increasing the channel conductance. No significant change was observed in the device mobility or the SWCNT Raman spectra following a TID exposure of 10 Mrad(Si), indicating extrinsic factors dominate the transfer characteristics in the SWCNT-TFT devices during irradiation. The extrinsic effects of charge trapping and the role that gas adsorption plays in the radiation response are discussed.
C1 [Cress, Cory D.; Robinson, Jeremy T.; Friedman, Adam L.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[McMorrow, Julian J.] N Amer Inc, Global Strategies Grp, Crofton, MD 21114 USA.
[Landi, Brian J.] Rochester Inst Technol, Chem & Biomed Engn Dept, Rochester, NY 14623 USA.
RP Cress, CD (reprint author), USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
EM carbon.electronics@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Cress, Cory/A-8673-2009; Friedman,
Adam/D-9610-2011;
OI Friedman, Adam/0000-0003-0597-5432; Cress, Cory/0000-0001-7563-6693
FU Defense Threat Reduction Agency MIPR [10-2197M]; NRL; National Research
Council
FX This work was supported in part by the Defense Threat Reduction Agency
MIPR #10-2197M. The work of C. D. Cress was supported by the NRL Karles
Distinguished Scholar Fellowship program. The work of A. L. Friedman was
supported by the National Research Council.
NR 29
TC 24
Z9 24
U1 2
U2 27
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3040
EP 3045
DI 10.1109/TNS.2010.2078515
PN 1
PG 6
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200005
ER
PT J
AU DasGupta, S
McMorrow, D
Reed, RA
Schrimpf, RD
Boos, JB
Ramachandran, V
AF DasGupta, Sandeepan
McMorrow, Dale
Reed, Robert A.
Schrimpf, Ronald D.
Boos, J. Brad
Ramachandran, Vishwa
TI Process and Contamination Effects on the Single-Event Response of
AlSb/InAs HEMTs
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE AlSb/InAs; charge collection; high electron mobility transistors (HEMT);
single event; TCAD
ID ELECTRON-MOBILITY TRANSISTORS; CHARGE-COLLECTION
AB We investigate the dependence of the single-event response of AlSb/InAs HEMTs on details of the doping, layer thicknesses, and contamination levels. The transconductance depends on the Delta-doping and layer thickness, which are shown to have the maximum impact on charge collection when the device is biased near the pinch-off voltage. In the on condition (near zero gate bias), the effect is minimal. The possible role of carbon contamination near the substrate-buffer heterointerface in reducing some of the longer transients is discussed.
C1 [DasGupta, Sandeepan; Reed, Robert A.; Schrimpf, Ronald D.; Ramachandran, Vishwa] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[McMorrow, Dale; Boos, J. Brad] USN, Res Lab, Washington, DC 20375 USA.
RP DasGupta, S (reprint author), Vanderbilt Univ, Dept Elect Engn & Comp Sci, 221 Kirkland Hall, Nashville, TN 37235 USA.
EM sandeepan.dasgupta@vanderbilt.edu
RI Schrimpf, Ronald/L-5549-2013
OI Schrimpf, Ronald/0000-0001-7419-2701
FU Defense Threat Reduction Agency
FX Manuscript received July 16, 2010; revised August 26, 2010; accepted
August 27, 2010. Date of publication October 04, 2010; date of current
version December 15, 2010. This work was supported by the Defense Threat
Reduction Agency Basic Research Program for Combating Weapons of Mass
Destruction.
NR 10
TC 1
Z9 1
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3262
EP 3266
DI 10.1109/TNS.2010.2075941
PN 1
PG 5
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200038
ER
PT J
AU Horst, SJ
Phillips, SD
Saha, P
Cressler, JD
McMorrow, D
Marshall, P
AF Horst, Stephen J.
Phillips, Stanley D.
Saha, Prabir
Cressler, John D.
McMorrow, Dale
Marshall, Paul
TI A Theory of Single-Event Transient Response in Cross-Coupled Negative
Resistance Oscillators
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE HBT; microwave oscillators; radiation effects; radiation hardening;
SiGe; silicon-germanium; VCO
ID VOLTAGE-CONTROLLED OSCILLATORS; TECHNOLOGY; HBTS
AB A theory of the circuit-based response to SET phenomena in resonant tank oscillators is presented. Transients are shown to be caused by a change in the voltage state of the circuit's characteristic differential equation. The SET amplitude and phase response is derived for arbitrary strike waveforms and shown to be time-variant based on the strike time relative to the period of oscillation. Measurements in the time-domain are used to support the theory, while the frequency-domain is used to gauge potential impact on system performance. A design-oriented analysis of the relevant trade-offs is also presented.
C1 [Horst, Stephen J.; Phillips, Stanley D.; Saha, Prabir; Cressler, John D.] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
[McMorrow, Dale] USN, Res Lab, Washington, DC 20375 USA.
[Marshall, Paul] NASA, Washington, DC 20024 USA.
RP Horst, SJ (reprint author), Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
EM shorst@gatech.edu
FU NASA; Defense Threat Reduction Agency [HDTRA1-09-C-0031]
FX Manuscript received July 15, 2010; revised August 27, 2010, September
07, 2010; accepted September 07, 2010. Date of publication October 07,
2010; date of current version December 15, 2010. This work was supported
in part by NASA and the Defense Threat Reduction Agency under
HDTRA1-09-C-0031.
NR 24
TC 10
Z9 10
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3349
EP 3357
DI 10.1109/TNS.2010.2076834
PN 1
PG 9
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200051
ER
PT J
AU McMorrow, D
Warner, J
DasGupta, S
Ramachandran, V
Boos, JB
Reed, R
Schrimpf, R
Paillet, P
Ferlet-Cavrois, V
Baggio, J
Buchner, S
El-Mamouni, F
Raine, M
Duhamel, O
AF McMorrow, Dale
Warner, Jeffrey
DasGupta, Sandeepan
Ramachandran, Vishwa
Boos, J. Brad
Reed, Robert
Schrimpf, Ronald
Paillet, Philippe
Ferlet-Cavrois, Veronique
Baggio, Jacques
Buchner, Stephen
El-Mamouni, Farah
Raine, Melanie
Duhamel, Olivier
TI Novel Energy-Dependent Effects Revealed in GeV Heavy-Ion-Induced
Transient Measurements of Antimony-Based III-V HEMTs
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Charge collection; high-electron-mobility transistor (HEMT); indium
arsenide (InAs); ion radiation effects; single-event effect (SEE);
single-event transient
ID CHEMICAL-VAPOR-DEPOSITION; ALSB/INAS HEMTS; ELECTRONIC DEVICES;
CHARGE-COLLECTION; LOW-VOLTAGE; SPEED; IRRADIATION; TRANSISTORS;
MOBILITY
AB High-bandwidth (16 GHz) time-resolved charge-collection measurements for heavy-ion irradiation of up to 70 GeV/amu are performed on low-power 6.1 angstrom lattice spacing InAlSb/InAs HEMT devices. Event cross sections are measured to be significantly larger than the active areas of the devices. Novel energy-dependent effects are observed.
C1 [McMorrow, Dale; Warner, Jeffrey; Boos, J. Brad; Buchner, Stephen] USN, Res Lab, Washington, DC 20375 USA.
[DasGupta, Sandeepan; Ramachandran, Vishwa; Reed, Robert; Schrimpf, Ronald; El-Mamouni, Farah] Vanderbilt Univ, Dept Elect Engn, Nashville, TN 37235 USA.
[Buchner, Stephen] GTEC, Crofton, MD 21114 USA.
[Paillet, Philippe; Ferlet-Cavrois, Veronique; Baggio, Jacques; Raine, Melanie; Duhamel, Olivier] CEA, DIF, F-91297 Arpajon, France.
RP McMorrow, D (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM mcmorrow@ccs.nrl.navy.mil; jeffrey.warner@nrl.navy.mil;
sandeepan.dasgupta@vanderbilt.edu; vishwa.ra-machandran@vanderbilt.edu;
boos@nrl.navy.mil; robert.reed@vanderbilt.edu;
ron.schrimpf@van-derbilt.edu; philippe.paillet@cea.fr;
Veronique.Ferlet-Cavrois@esa.int; jacques.baggio@cea.fr';
Stephen.buchner.ctr@nrl.navy.mil; farah.el.mamouni@vanderbilt.edu;
melanie.raine@cea.fr; olivier.duhamel@cea.fr
RI Raine, Melanie/F-6357-2011; Schrimpf, Ronald/L-5549-2013
OI Raine, Melanie/0000-0002-1898-9473; Schrimpf, Ronald/0000-0001-7419-2701
FU Defense Threat Reduction Agency
FX Manuscript received July 17, 2010; revised August 31, 2010; accepted
September 21, 2010. Date of current version December 15, 2010. This work
was supported in part by the Defense Threat Reduction Agency 6.1
program.
NR 17
TC 9
Z9 9
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3358
EP 3365
DI 10.1109/TNS.2010.2086487
PN 1
PG 8
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200052
ER
PT J
AU Moen, KA
Phillips, SD
Wilcox, EP
Cressler, JD
Nayfeh, H
Sutton, AK
Warner, JH
Buchner, SP
McMorrow, D
Vizkelethy, G
Dodd, P
AF Moen, Kurt A.
Phillips, Stanley D.
Wilcox, Edward P.
Cressler, John D.
Nayfeh, Hasan
Sutton, Akil K.
Warner, Jeffrey H.
Buchner, Stephen P.
McMorrow, Dale
Vizkelethy, Gyorgy
Dodd, Paul
TI Evaluating the Influence of Various Body-Contacting Schemes on Single
Event Transients in 45-nm SOI CMOS
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE 45 nm; boy-contact; CMOS; Single-Event Transient (SET); SOI
ID HEAVY-ION; 2-PHOTON ABSORPTION; PROTON IRRADIATION; RF PERFORMANCE;
TECHNOLOGIES; HBTS
AB We investigate the single-event transient (SET) response of T-body and notched-body contacted MOSFETs from a commercial 45 nm SOI RF-CMOS technology. Although body-contacted devices suffer from reduced RF performance compared to floating body devices, previous work on 65 nm and 90 nm MOSFETs has shown that the presence of a body-contact significantly mitigates the total ionizing dose (TID) sensitivity that is exhibited in floating-body SOI MOSFETs. The influence of body-contacting schemes on the single-event effect (SEE) sensitivity is examined here through time-resolved measurements of laser and microbeam-induced transients from T-body and notched-body MOSFETs. Laser-induced transients demonstrate the reduced SEE sensitivity of the notched-body MOSFETs as compared to the T-body MOSFETs; this is evidenced by a uniform reduction in the peak transient magnitudes and collected charge for transients captured at the worst-case bias of V-DS = 1.0 V, as well as with all terminals grounded. Microbeam-induced transient data are also presented to support the validity of the laser-induced transient data. Together, these data provide new insight into the RF versus TID versus SEE tradeoffs associated with body contacting schemes in nm-scale MOSFETs, an important concern for emerging space-based electronics applications.
C1 [Moen, Kurt A.; Phillips, Stanley D.; Wilcox, Edward P.; Cressler, John D.] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
[Nayfeh, Hasan; Sutton, Akil K.] IBM Semicond Res & Dev Ctr, Hopewell Jct, NY 12533 USA.
[Warner, Jeffrey H.; Buchner, Stephen P.; McMorrow, Dale] USN, Res Lab, Washington, DC 20375 USA.
[Vizkelethy, Gyorgy; Dodd, Paul] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Moen, KA (reprint author), Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
EM kmoen@ece.gatech.edu; stan.phillips@gatech.edu; twilcox@ece.gatech.edu;
cressler@ece.gatech.edu; nayfeh@us.ibm.com; aksutton@us.ibm.com;
jeffrey.warner@nrl.navy.mil; stephen.buchner.ctr@nrl.navy.mil;
mcmorrow@ccs.nrl.navy.mil; gvizkel@sandia.gov; pedodd@sandia.gov
OI Moen, Kurt/0000-0001-7697-8636
FU Defense Threat Reduction Agency [HDTRA1-09-C-0031]; IBM; U.S. Department
of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX Manuscript received July 16, 2010; revised August 26, 2010; accepted
August 30, 2010. Date of publication October 18, 2010; date of current
version December 15, 2010. This work was supported in part by the
Defense Threat Reduction Agency under HDTRA1-09-C-0031, IBM, and Sandia
National Laboratories, a multi-program laboratory operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Company, for
the U.S. Department of Energy's National Nuclear Security Administration
under Contract DE-AC04-94AL85000.
NR 14
TC 8
Z9 8
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3366
EP 3372
DI 10.1109/TNS.2010.2076304
PN 1
PG 7
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200053
ER
PT J
AU Jagannathan, S
Gadlage, MJ
Bhuva, BL
Schrimpf, RD
Narasimham, B
Chetia, J
Ahlbin, JR
Massengill, LW
AF Jagannathan, Srikanth
Gadlage, Matthew J.
Bhuva, Bharat L.
Schrimpf, Ronald D.
Narasimham, Balaji
Chetia, Jugantor
Ahlbin, Jonathan R.
Massengill, Lloyd W.
TI Independent Measurement of SET Pulse Widths From N-Hits and P-Hits in
65-nm CMOS
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE N-hits; P-hits; pulse width; SET; single event transient; soft error
ID TRANSIENT; PROPAGATION; TECHNOLOGY; LASER
AB A novel circuit design for separating single-event transients due to N-hits and P-hits is described. Measurement results obtained from a 65 nm technology using heavy-ions show different dominant mechanisms for charge collection for P-hits and N-hits. The data collected represent the first such separation of SET pulse widths for 65 nm bulk CMOS technology. For low LET particles, N-hit transients are longer, but for high LET particles, P-hit transients are longer. N-well depth and the parasitic bipolar effect are shown to be the most important parameters affecting transient pulse widths.
C1 [Jagannathan, Srikanth; Bhuva, Bharat L.; Schrimpf, Ronald D.; Chetia, Jugantor; Ahlbin, Jonathan R.; Massengill, Lloyd W.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[Gadlage, Matthew J.] NAVSEA Crane, Crane, IN 47522 USA.
[Narasimham, Balaji] Broadcomm Corp, Irvine, CA 92617 USA.
RP Jagannathan, S (reprint author), Vanderbilt Univ, Dept Elect Engn & Comp Sci, 221 Kirkland Hall, Nashville, TN 37235 USA.
EM srikanth.jagannathan@vanderbilt.edu; matthew.gadlage@navy.mil;
Bhuva@eecsmail.vuse.vanderbilt.edu; ron.schrimpf@vanderbilt.edu;
balajin@broadcom.com; Jugantor.Chetia@vanderbilt.edu;
jon.ahlbin@vanderbilt.edu; lloyd.w.massengill@vanderbilt.edu
RI Schrimpf, Ronald/L-5549-2013
OI Schrimpf, Ronald/0000-0001-7419-2701
FU Cisco Systems; Defense Threat Reduction Agency [HDTRA1-09-C-0038]
FX Manuscript received July 16, 2010; revised August 30, 2010; accepted
September 06, 2010. Date of current version December 15, 2010. This work
was supported in part by Cisco Systems and the Defense Threat Reduction
Agency under contract HDTRA1-09-C-0038.
NR 14
TC 21
Z9 24
U1 0
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3386
EP 3391
DI 10.1109/TNS.2010.2076836
PN 1
PG 6
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200056
ER
PT J
AU Kanyogoro, N
Buchner, S
McMorrow, D
Hughes, H
Liu, MS
Hurst, A
Carpasso, C
AF Kanyogoro, Nderitu
Buchner, Stephen
McMorrow, Dale
Hughes, Harold
Liu, Michael S.
Hurst, Al
Carpasso, Charles
TI A New Approach for Single-Event Effects Testing With Heavy Ion and
Pulsed-Laser Irradiation: CMOS/SOI SRAM Substrate Removal
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Heavy ions; laser; silicon substrate; single-event upset; SRAM
AB A novel methodology for completely removing the silicon substrate of SOI devices for single-event effects testing is introduced and demonstrated using a 90 nm, 4 Mb SRAM test vehicle. Applications and significance are discussed.
C1 [Kanyogoro, Nderitu; Buchner, Stephen] GTEC, Crofton, MD 21114 USA.
[Buchner, Stephen; McMorrow, Dale; Hughes, Harold] USN, Res Lab, Washington, DC 20375 USA.
[Liu, Michael S.] TSS, Bloomington, MN 55437 USA.
[Hurst, Al] Trusted Semicond Solut, Anoka, MN 55303 USA.
[Carpasso, Charles] Freescale Semicond, Austin, TX 78535 USA.
RP Kanyogoro, N (reprint author), GTEC, Crofton, MD 21114 USA.
EM nderitu.kanyogoro.ctr@nrl.navy.mil; stephen.buchner.ctr@nrl.navy.mil;
mcmorrow@ccs.nrl.navy.mil; hap.hughes@nrl.navy.mil;
mike.s.liu@comcast.net; al.hurst@trustedsemi.com;
c.carposso@freescale.com
FU Defense Threat Reduction Agency through MIPR [10-2197M]
FX Manuscript received July 16, 2010; revised September 07, 2010; accepted
September 13, 2010. Date of current version December 15, 2010. This work
was supported in part by the Defense Threat Reduction Agency through
MIPR 10-2197M.
NR 7
TC 13
Z9 13
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3414
EP 3418
DI 10.1109/TNS.2010.2085450
PN 1
PG 5
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200060
ER
PT J
AU Messenger, SR
Warner, JH
Uribe, R
Walters, RJ
AF Messenger, Scott R.
Warner, Jeffrey H.
Uribe, Roberto
Walters, Robert J.
TI Monte Carlo Analyses of the NEO Beam Electron Beam Facility for Space
Solar Cell Radiation Qualification
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Dosimetry; Monte Carlo transport; nonionizing energy loss; solar cells
ID DAMAGE
AB MCNPX Monte Carlo electron transport analyses are used to characterize the electron beam facility at NEO Beam. The electron flux and energy profiles are quantified along the beam path leading to a better understanding of solar cell damage. Experimental results are compared to the MCNPX simulations.
C1 [Messenger, Scott R.; Warner, Jeffrey H.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
[Uribe, Roberto] Kent State Coll Technol, Kent, OH 44242 USA.
RP Messenger, SR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM scream@nrl.navy.mil; ruribe@kent.edu
FU Office of Naval Research
FX This work was supported in part by the Office of Naval Research.
NR 15
TC 1
Z9 1
U1 0
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3470
EP 3476
DI 10.1109/TNS.2010.2083689
PN 1
PG 7
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200069
ER
PT J
AU Armstrong, SE
Olson, BD
Holman, WT
Warner, J
McMorrow, D
Massengill, LW
AF Armstrong, S. E.
Olson, B. D.
Holman, W. T.
Warner, J.
McMorrow, D.
Massengill, L. W.
TI Demonstration of a Differential Layout Solution for Improved ASET
Tolerance in CMOS A/MS Circuits
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT NUCLEAR AND SPACE RADIATION EFFECTS CONFERENCE (NSREC)
CY JUL 19-23, 2010
CL Denver, CO
DE Charge sharing; radiation hardened by design; single event effects;
single event transients
ID 130 NM CMOS; 2-PHOTON ABSORPTION; CHARGE-COLLECTION; DESIGN TECHNIQUE;
THROUGH-WAFER; SINGLE; MITIGATION
AB Layout techniques that exploit charge-sharing phenomena for analog single-event transient (ASET) mitigation in fully-differential analog/mixed-signal (A/MS) designs are experimentally explored in a 65 nm CMOS process. Benefits of the proposed RHBD layout techniques are illustrated through circuit simulations. Preliminary RHBD layout guidelines are discussed.
C1 [Armstrong, S. E.; Olson, B. D.] NAVSEA Crane, Crane, IN 47522 USA.
[Armstrong, S. E.; Holman, W. T.; Massengill, L. W.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Radiat Effects Grp, Nashville, TN 37235 USA.
[Warner, J.; McMorrow, D.] USN, Res Lab, Washington, DC 20375 USA.
RP Armstrong, SE (reprint author), NAVSEA Crane, Crane, IN 47522 USA.
EM sarah.armstrong@vanderbilt.edu; mcmorrow@ccs.nrl.navy.mil;
lloyd.massengill@vanderbilt.edu
FU Defense Threat Reduction Agency [HDTRA1-09-C-0038]; DARPA
FX Manuscript received July 16, 2010; revised September 01, 2010, September
14, 2010; accepted September 14, 2010. Date of current version December
15, 2010. This work was supported in part by the Defense Threat
Reduction Agency under Contract HDTRA1-09-C-0038 and in part by DARPA.
NR 18
TC 19
Z9 20
U1 3
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
EI 1558-1578
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD DEC
PY 2010
VL 57
IS 6
BP 3615
EP 3619
DI 10.1109/TNS.2010.2080320
PN 1
PG 5
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 695FE
UT WOS:000285355200089
ER
PT J
AU Ferrari, S
Zhang, GX
Wettergren, TA
AF Ferrari, Silvia
Zhang, Guoxian
Wettergren, Thomas A.
TI Probabilistic Track Coverage in Cooperative Sensor Networks
SO IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS
LA English
DT Article
DE Geometric transversals; Poisson flats; probability; search theory;
sensor networks; target tracking; track coverage; track detection
ID PERFORMANCE; SEARCH
AB The quality of service of a network performing cooperative track detection is represented by the probability of obtaining multiple elementary detections over time along a target track. Recently, two different lines of research, namely, distributed-search theory and geometric transversals, have been used in the literature for deriving the probability of track detection as a function of random and deterministic sensors' positions, respectively. In this paper, we prove that these two approaches are equivalent under the same problem formulation. Also, we present a new performance function that is derived by extending the geometric-transversal approach to the case of random sensors' positions using Poisson flats. As a result, a unified approach for addressing track detection in both deterministic and probabilistic sensor networks is obtained. The new performance function is validated through numerical simulations and is shown to bring about considerable computational savings for both deterministic and probabilistic sensor networks.
C1 [Ferrari, Silvia; Zhang, Guoxian] Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
[Wettergren, Thomas A.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Ferrari, S (reprint author), Duke Univ, Dept Mech Engn & Mat Sci, Durham, NC 27708 USA.
OI Wettergren, Thomas/0000-0002-6623-8412
FU Office of Naval Research [321]; National Science Foundation [ECS
0448906]
FX Manuscript received May 1, 2009; revised October 5, 2009; accepted
December 17, 2009. Date of publication March 15, 2010; date of current
version November 17, 2010. This work was supported in part by the Office
of Naval Research under Code 321 and in part by the National Science
Foundation under CAREER ECS 0448906. This paper was recommended by
Associate Editor R. Lynch.
NR 38
TC 11
Z9 11
U1 1
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1083-4419
J9 IEEE T SYST MAN CY B
JI IEEE Trans. Syst. Man Cybern. Part B-Cybern.
PD DEC
PY 2010
VL 40
IS 6
BP 1492
EP 1504
DI 10.1109/TSMCB.2010.2041449
PG 13
WC Automation & Control Systems; Computer Science, Artificial Intelligence;
Computer Science, Cybernetics
SC Automation & Control Systems; Computer Science
GA 681ZR
UT WOS:000284364400007
PM 20236903
ER
PT J
AU LeFurjah, G
Marshall, R
Casey, TS
Haack, T
Boyer, DD
AF LeFurjah, G.
Marshall, R.
Casey, T. S.
Haack, T.
Boyer, D. De Forest
TI Synthesis of mesoscale numerical weather prediction and empirical
site-specific radar clutter models
SO IET RADAR SONAR AND NAVIGATION
LA English
DT Article
AB A littoral clutter modelling approach that derives three-dimensional refractivity profiles from mesoscale numerical weather prediction (MSNWP), applies them to parabolic equation (PE) propagation models, and combines them with empirical surface clutter reflectivity models to generate a more realistic model of surface clutter, is described. The MSNWP model is COAMPS (R), coupled atmospheric mesoscale numerical prediction system. This study updates a paper for the IEEE Radar Conference in 2008: overwater discrete clutter, oil rigs, have been added to the model; new model comparisons with recorded data have been executed; and an evaporative duct model was appended below the refractivity profiles Burk et al. developed the approach presented here (i.e. COAMPS (R) provides atmospheric data for propagation models, which in turn provide data for clutter models). The current work advances this technology into the littorals. It has been tested over many cases of atmospheric conditions in several geographic areas. This synthesis of MSNWP and radar clutter models can provide clutter and propagation forecasts for military planners, retroactive prediction of propagation for clutter test data analysis and realistic models for radar system design and performance analysis.
C1 [LeFurjah, G.; Marshall, R.; Casey, T. S.] USN, Ctr Surface Warfare, Dahlgren Div, Dahlgren, VA 22448 USA.
[Haack, T.] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Boyer, D. De Forest] Technol Serv Corp, Dahlgren, VA 22448 USA.
RP LeFurjah, G (reprint author), USN, Ctr Surface Warfare, Dahlgren Div, Dahlgren, VA 22448 USA.
EM george.lefurjah@navy.mil
NR 19
TC 4
Z9 5
U1 0
U2 1
PU INST ENGINEERING TECHNOLOGY-IET
PI HERTFORD
PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
SN 1751-8784
J9 IET RADAR SONAR NAV
JI IET Radar Sonar Navig.
PD DEC
PY 2010
VL 4
IS 6
BP 747
EP 754
DI 10.1049/iet-rsn.2009.0145
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 647ML
UT WOS:000281622500001
ER
PT J
AU Chakravarty, S
AF Chakravarty, S.
TI Immunological underpinnings in the development of an attenuated
sporozoite vaccine to prevent and eliminate Plasmodium falciparum
malaria
SO IMMUNOLOGY
LA English
DT Meeting Abstract
CT Annual Congress of the British-Society-for-Immunology
CY DEC 06-10, 2010
CL Liverpool, ENGLAND
SP British Soc Immunol
C1 [Chakravarty, S.] Sanaria Inc, Attenuated Sporozoite Vaccine Lab, Rockville, MD USA.
[Chakravarty, S.] Sanaria Inc, Clin Dev Team, Rockville, MD USA.
[Chakravarty, S.] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Chakravarty, S.] Univ Maryland, Sch Med, Ctr Vaccine Dev, Baltimore, MD 21201 USA.
[Chakravarty, S.] Radboud Univ Nijmegen, Med Ctr, NL-6525 ED Nijmegen, Netherlands.
[Chakravarty, S.] LUMC, Leiden Malaria Res Grp, Leiden, Netherlands.
[Chakravarty, S.] Columbia Univ, Med Ctr, New York, NY USA.
[Chakravarty, S.] Prot Potential LLC, Rockville, MD USA.
[Chakravarty, S.] NIAID, Vaccine Res Ctr, NIH, Bethesda, MD 20892 USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0019-2805
J9 IMMUNOLOGY
JI Immunology
PD DEC
PY 2010
VL 131
SU 1
BP 9
EP 9
PG 1
WC Immunology
SC Immunology
GA 689XL
UT WOS:000284964100024
ER
PT J
AU Nichols, JF
Aralis, H
Merino, SG
Barrack, MT
Stalker-Fader, L
Rauh, MJ
AF Nichols, Jeanne F.
Aralis, Hilary
Garcia Merino, Sonia
Barrack, Michelle T.
Stalker-Fader, Lindsay
Rauh, Mitchell J.
TI Utility of the Actiheart Accelerometer for Estimating Exercise Energy
Expenditure in Female Adolescent Runners
SO INTERNATIONAL JOURNAL OF SPORT NUTRITION AND EXERCISE METABOLISM
LA English
DT Article
DE accelerometry; physical activity assessment; oxygen consumption;
athletes
ID COMBINED HEART-RATE; PHYSICAL-ACTIVITY; ACTIVITY MONITORS; BONE
TURNOVER; CHILDREN; WOMEN; CALIBRATION; AVAILABILITY; VALIDATION;
MOVEMENT
AB There is a growing need to accurately assess exercise energy expenditure (EEE) in athletic populations that may be at risk for health disorders because of an imbalance between energy intake and energy expenditure. The Actiheart combines heart rate and uniaxial accelerometry to estimate energy expenditure above rest. The authors' purpose was to determine the utility of the Actiheart for predicting EEE in female adolescent runners (N = 39, age 15.7 +/- 1.1 yr). EEE was measured by indirect calorimetry and predicted by the Actiheart during three 8-min stages of treadmill running at individualized velocities corresponding to each runner's training, including recovery, tempo, and 5-km-race pace. Repeated-measures ANOVA with Bonferroni post hoc comparisons across the 3 running stages indicated that the Actiheart was sensitive to changes in intensity (p < .01), but accelerometer output tended to plateau at race pace. Pairwise comparisons of the mean difference between Actiheart- and criterion-measured EEE yielded values of 0.0436, 0.0539, and 0.0753 kcal . kg(-1) min(-1) during recovery, tempo, and race pace, respectively (p < .0001). Bland Altman plots indicated that the Actiheart consistently underestimated EEE except in 1 runner's recovery bout. A linear mixed-model regression analysis with height as a covariate provided an improved EEE prediction model, with the overall standard error of the estimate for the 3 speeds reduced to 0.0101 kcal . kg(-1) . min(-1). Using the manufacturer's equation that combines heart rate and uniaxial motion, the Actiheart may have limited use in accurately assessing EEE, and therefore energy availability, in young, female competitive runners.
C1 [Nichols, Jeanne F.; Stalker-Fader, Lindsay; Rauh, Mitchell J.] San Diego State Univ, Sch Exercise & Nutr Sci, San Diego, CA 92182 USA.
[Aralis, Hilary] USN, Hlth Res Ctr, San Diego, CA 92152 USA.
[Garcia Merino, Sonia] Univ Europea Madrid, Fac Phys Act & Sport Sci, Madrid, Spain.
[Barrack, Michelle T.] Univ Calif Davis, Grad Grp Nutr Biol, Davis, CA 95616 USA.
RP Nichols, JF (reprint author), San Diego State Univ, Sch Exercise & Nutr Sci, San Diego, CA 92182 USA.
FU Center for Health and Nutrition Research at the University of California
Davis; American College of Sports Medicine, NASA
FX This study was funded by grants from the Center for Health and Nutrition
Research at the University of California Davis and from the American
College of Sports Medicine, NASA Space Physiology Research Program. None
of the authors had a personal or financial conflict of interest.
NR 34
TC 4
Z9 4
U1 0
U2 11
PU HUMAN KINETICS PUBL INC
PI CHAMPAIGN
PA 1607 N MARKET ST, PO BOX 5076, CHAMPAIGN, IL 61820-2200 USA
SN 1526-484X
J9 INT J SPORT NUTR EXE
JI Int. J. Sport Nutr. Exerc. Metab.
PD DEC
PY 2010
VL 20
IS 6
BP 487
EP 495
PG 9
WC Nutrition & Dietetics; Sport Sciences
SC Nutrition & Dietetics; Sport Sciences
GA 696GR
UT WOS:000285430400005
PM 21116021
ER
PT J
AU Berger, MT
AF Berger, Mark T.
TI The Empire Project: The Rise and Fall of the British World System,
1830-1970
SO ITINERARIO-INTERNATIONAL JOURNAL ON THE HISTORY OF EUROPEAN EXPANSION
AND GLOBAL INTERACTION
LA English
DT Book Review
C1 [Berger, Mark T.] USN, Postgrad Sch, Monterey, CA USA.
RP Berger, MT (reprint author), USN, Postgrad Sch, Monterey, CA USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA EDINBURGH BLDG, SHAFTESBURY RD, CB2 8RU CAMBRIDGE, ENGLAND
SN 0165-1153
J9 ITINERARIO
JI Itinerario
PD DEC
PY 2010
VL 34
IS 3
SI SI
BP 124
EP 126
DI 10.1017/S0165115310000756
PG 3
WC History
SC History
GA 768EC
UT WOS:000290913300012
ER
PT J
AU Haack, T
Wang, C
Garrett, S
Glazer, A
Mailhot, J
Marshall, R
AF Haack, Tracy
Wang, Changgui
Garrett, Sally
Glazer, Anna
Mailhot, Jocelyn
Marshall, Robert
TI Mesoscale Modeling of Boundary Layer Refractivity and Atmospheric
Ducting
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
ID RADIO REFRACTIVITY; WALLOPS ISLAND; PERSIAN-GULF; C-BAND; PROPAGATION;
STATISTICS; CALIFORNIA; RESOLUTION; VIRGINIA; STREAM
AB In this study four mesoscale forecasting systems were used to investigate the four-dimensional structure of atmospheric refractivity and ducting layers that occur within evolving synoptic conditions over the eastern seaboard of the United States. The aim of this study was to identify the most important components of forecasting systems that contribute to refractive structures simulated in a littoral environment. Over a 7-day period in April May of 2000 near Wallops Island, Virginia, meteorological parameters at the ocean surface and within the marine atmospheric boundary layer (MABL) were measured to characterize the spatiotemporal variability contributing to ducting. By using traditional statistical metrics to gauge performance, the models were found to generally overpredict MABL moisture, resulting in fewer and weaker ducts than were diagnosed from vertical profile observations. Mesoscale features in ducting were linked to highly resolved sea surface temperature forcing and associated changes in surface stability and to local variations in internal boundary layers that developed during periods of offshore flow. Sensitivity tests that permit greater mesoscale detail to develop on the model grids revealed that initialization of the simulations and the resolution of sea surface temperature analyses were critical factors for accurate predictions of coastal refractivity.
C1 [Haack, Tracy] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Wang, Changgui] Met Off, Joint Ctr Mesoscale Meteorol, Reading, Berks, England.
[Garrett, Sally] Def Technol Agcy, Auckland, New Zealand.
[Glazer, Anna; Mailhot, Jocelyn] Environm Canada, Meteorol Serv Canada, Dorval, PQ, Canada.
[Marshall, Robert] USN, Ctr Surface Warfare, Dahlgren, VA 22448 USA.
RP Haack, T (reprint author), USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
EM tracy.haack@nrlmry.navy.mil
FU Office of Naval Research [0602271N]; Ministry of Defence, U.K.
[0602435N]
FX Our gratitude is extended to Stephane Gaudreault, a recent addition to
the ABCANZ model intercomparison team and a contributor to our ongoing
effort. We thank Ross Rottier and others at JHU/APL for the helicopter
measurements and Kenneth Davidson of NPS for supplying the buoy data. We
are grateful to Duncan Cook, Dan Dockery, and two anonymous reviewers
whose suggestions helped to shape the manuscript. The ABCANZ model
intercomparison collaboration was supported by the Office of Naval
Research, Program Element 0602271N. Contributions from the U.S. authors
were also supported by Program Element 0602435N, and those from the U.K.
author were supported by the DERTP funded by the Ministry of Defence,
U.K. This paper is British Crown Copyright.
NR 25
TC 20
Z9 20
U1 0
U2 1
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD DEC
PY 2010
VL 49
IS 12
BP 2437
EP 2457
DI 10.1175/2010JAMC2415.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 702KV
UT WOS:000285894500004
ER
PT J
AU Harris, RJ
Mecikalski, JR
MacKenzie, WM
Durkee, PA
Nielsen, KE
AF Harris, Ryan J.
Mecikalski, John R.
MacKenzie, Wayne M., Jr.
Durkee, Philip A.
Nielsen, Kurt E.
TI The Definition of GOES Infrared Lightning Initiation Interest Fields
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
ID KENNEDY-SPACE-CENTER; UNITED-STATES; THUNDERSTORM ELECTRIFICATION;
CONVECTIVE INITIATION; MAPPING ARRAY; GOES IMAGERY; CLOUD; RADAR;
REFLECTIVITY; SIGNATURES
AB Within cumulus cloud fields that develop in conditionally unstable air masses, only a fraction of the cumuli may eventually develop into deep convection. Identifying which of these convective clouds is most likely to generate lightning often starts with little more than a qualitative visual satellite analysis. The goal of this study is to identify the observed satellite infrared (IR) signatures associated with growing cumulus clouds prior to the first lightning strike, or lightning initiation (LI). This study quantifies the behavior of 10 Geostationary Operational Environmental Satellite-12 (GOES-12) IR fields of interest in the 1 h in advance of LI. A total of 172 lightning-producing storms, which occurred during the 2009 convective season, are manually tracked and studied over four regions: northern Alabama, central Oklahoma, the Kennedy Space Center, and Washington, D.C. Four-dimensional and cloud-to-ground lightning array data provide a total cloud lightning picture (in-cloud, cloud-to-cloud, cloud-to-air, and cloud-to-ground) and thus precise LI points for each storm in both time and space. Statistical significance tests are conducted on observed trends for each of the 10 LI fields to determine the unique information each field provides in terms of behavior prior to LI. Eight out of 10 LI fields exhibited useful information at least 15 min in advance of LI, with 35 min being the average. Statistical test; on these eight fields are compared for separate large geographical areas. Median IR temperatures and 3.9-mu m reflectance values are then determined for all 172 events as an outcome, which may be valuable when implementing a LI prediction algorithm into real-time satellite-based systems.
C1 [Mecikalski, John R.] Univ Alabama, Natl Space Sci & Technol Ctr, Dept Atmospher Sci, Huntsville, AL 35805 USA.
[Harris, Ryan J.; Durkee, Philip A.; Nielsen, Kurt E.] USN, Postgrad Sch, Dept Meteorol, Grad Sch Engn & Appl Sci, Monterey, CA 93943 USA.
[Harris, Ryan J.; Durkee, Philip A.; Nielsen, Kurt E.] USN, Postgrad Sch, Space Syst Acad Grp, Grad Sch Engn & Appl Sci, Monterey, CA 93943 USA.
[MacKenzie, Wayne M., Jr.] Univ Alabama, Natl Space Sci & Technol Ctr, Ctr Earth Syst Sci, Huntsville, AL 35805 USA.
RP Mecikalski, JR (reprint author), Univ Alabama, Natl Space Sci & Technol Ctr, Dept Atmospher Sci, 320 Sparkman Dr, Huntsville, AL 35805 USA.
EM johnm@nsstc.uah.edu
RI MacKenzie, Wayne/A-2123-2011
OI MacKenzie, Wayne/0000-0003-2121-3278
FU Applied Meteorological Unit at Patrick AFB; National Science Foundation
[0813603]
FX We thank Mr. William Roeder, the 45th Weather Squadron, and the Applied
Meteorological Unit at Patrick AFB for providing funding and data
support and accommodating a site visit to Cape Canaveral, Florida; Dr.
Pat Harr, Mary Jordan, and Bob Creasey helped with deciphering
statistical results, coding, and data support. We also thank John Walker
from University of Alabama in Huntsville (UAHuntsville) for his coding
help, and especially Dr. Bill McCaul (UAHuntsville) for the "flash
grouping" algorithm and assistance with lightning data acquisition.
Doctors Bill Rison of New Mexico Institute of Mining and Technology,
Bill Beasley from the University of Oklahoma, and Don MacGorman of the
National Oceanic and Atmospheric Administration National Severe Storms
Laboratory provided valuable assistance obtaining the Oklahoma lightning
data archive. Jeff Zautner from the 14th Weather Squadron was crucial in
supplying the processed NLDN data as well. This research was partially
supported by National Science Foundation Grant 0813603. The quality of
this paper was substantially improved on the basis of comments from
three anonymous reviewers.
NR 55
TC 15
Z9 16
U1 0
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD DEC
PY 2010
VL 49
IS 12
BP 2527
EP 2543
DI 10.1175/2010JAMC2575.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 702KV
UT WOS:000285894500009
ER
PT J
AU Mukhopadhyay, S
Thomason, MK
Lentz, S
Nolan, N
Willner, K
Gee, JE
Glass, MB
Inglis, TJJ
Merritt, A
Levy, A
Sozhamannan, S
Mateczun, A
Read, TD
AF Mukhopadhyay, Sanghamitra
Thomason, Maureen K.
Lentz, Shannon
Nolan, Nichole
Willner, Kristin
Gee, Jay E.
Glass, Mindy B.
Inglis, Timothy J. J.
Merritt, Adam
Levy, Avram
Sozhamannan, Shanmuga
Mateczun, Al
Read, Timothy D.
TI High-Redundancy Draft Sequencing of 15 Clinical and Environmental
Burkholderia Strains
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID PSEUDOMONAS-PSEUDOMALLEI; WESTERN-AUSTRALIA; MELIOIDOSIS; OUTBREAK;
AGENTS; MALLEI
AB The Gram-negative Burkholderia genus includes several species of intracellular bacterial pathogens that pose substantial risk to humans. In this study, we have generated draft genome sequences of 15 strains of B. oklahomensis, B. pseudomallei, B. thailandensis, and B. ubonensis to an average sequence read coverage of 25- to 40-fold.
C1 [Mukhopadhyay, Sanghamitra; Thomason, Maureen K.; Lentz, Shannon; Nolan, Nichole; Willner, Kristin; Sozhamannan, Shanmuga; Mateczun, Al; Read, Timothy D.] USN, Med Res Ctr, Biol Def Res Directorate, Silver Spring, MD 20910 USA.
[Gee, Jay E.; Glass, Mindy B.; Merritt, Adam] Ctr Dis Control & Prevent, Bacterial Special Pathogens Branch, Div High Consequence Pathogens & Pathol, Atlanta, GA 30333 USA.
[Inglis, Timothy J. J.; Levy, Avram] PathW Lab Med WA, Div Microbiol & Infect Dis, Nedlands, WA 6009, Australia.
RP Read, TD (reprint author), Emory Univ, Sch Med, Dept Human Genet, 615 Michael St, Atlanta, GA 30322 USA.
EM tread@emory.edu
RI Read, Timothy/E-6240-2011
FU Defense Threat Reduction Agency [XX0013_06_NM_B]
FX This work was funded by grant XX0013_06_NM_B from the Defense Threat
Reduction Agency to T.D.R. Some of the authors are employees of the U.S.
Government, and this work was prepared as part of their official duties.
NR 20
TC 5
Z9 5
U1 1
U2 5
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 DEC
PY 2010
VL 192
IS 23
BP 6313
EP 6314
DI 10.1128/JB.00991-10
PG 2
WC Microbiology
SC Microbiology
GA 677LQ
UT WOS:000283994300026
PM 20870763
ER
PT J
AU Provencher, MT
Bhatia, S
Ghodadra, NS
Grumet, RC
Bach, BR
Dewing, CB
LeClere, L
Romeo, AA
AF Provencher, Matthew T.
Bhatia, Sanjeev
Ghodadra, Neil S.
Grumet, Robert C.
Bach, Bernard R., Jr.
Dewing, Christopher B.
LeClere, Lance
Romeo, Anthony A.
TI Recurrent Shoulder Instability: Current Concepts for Evaluation and
Management of Glenoid Bone Loss
SO JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
LA English
DT Article; Proceedings Paper
CT 77th Annual Meeting of the American-Academy-of-Orthopaedic-Surgeons
CY MAR 09-13, 2010
CL New Orleans, LA
SP Amer Acad Orthopaed Surg
ID ANTERIOR GLENOHUMERAL INSTABILITY; 3-DIMENSIONAL COMPUTED-TOMOGRAPHY;
LATARJET PROCEDURE; ARTHROSCOPIC STABILIZATION; DISLOCATION; INFERIOR;
REPAIR; RECONSTRUCTION; DEFICIENCY; DIAGNOSIS
RP Provencher, MT (reprint author), USN, San Diego Med Ctr, Dept Orthopaed Surg, 34800 Bob Wilson Dr,Suite 112, San Diego, CA 92134 USA.
OI Romeo, Anthony/0000-0003-4848-3411
NR 47
TC 85
Z9 87
U1 2
U2 3
PU JOURNAL BONE JOINT SURGERY INC
PI NEEDHAM
PA 20 PICKERING ST, NEEDHAM, MA 02192 USA
SN 0021-9355
J9 J BONE JOINT SURG AM
JI J. Bone Joint Surg.-Am. Vol.
PD DEC 1
PY 2010
VL 92A
SU 2
BP 133
EP 151
DI 10.2106/JBJS.J.00906
PG 19
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 691YH
UT WOS:000285118200014
PM 21123597
ER
PT J
AU Izzard, L
Fuller, A
Blacksell, SD
Paris, DH
Richards, AL
Aukkanit, N
Nguyen, C
Jiang, J
Fenwick, S
Day, NPJ
Graves, S
Stenos, J
AF Izzard, Leonard
Fuller, Andrew
Blacksell, Stuart D.
Paris, Daniel H.
Richards, Allen L.
Aukkanit, Nuntipa
Nguyen, Chelsea
Jiang, Ju
Fenwick, Stan
Day, Nicholas P. J.
Graves, Stephen
Stenos, John
TI Isolation of a Novel Orientia Species (O. chuto sp nov.) from a Patient
Infected in Dubai
SO JOURNAL OF CLINICAL MICROBIOLOGY
LA English
DT Article
ID POLYMERASE-CHAIN-REACTION; RICKETTSIA-TSUTSUGAMUSHI; SCRUB TYPHUS;
ANTIGENIC VARIANTS; SPOTTED-FEVER; IDENTIFICATION; GENUS
AB In July 2006, an Australian tourist returning from Dubai, in the United Arab Emirates (UAE), developed acute scrub typhus. Her signs and symptoms included fever, myalgia, headache, rash, and eschar. Orientia tsutsugamushi serology demonstrated a 4-fold rise in antibody titers in paired serum collections (1: 512 to 1: 8,192), with the sera reacting strongest against the Gilliam strain antigen. An Orientia species was isolated by the in vitro culture of the patient's acute blood taken prior to antibiotic treatment. The gene sequencing of the 16S rRNA gene (rrs), partial 56-kDa gene, and the full open reading frame 47-kDa gene was performed, and comparisons of this new Orientia sp. isolate to previously characterized strains demonstrated significant sequence diversity. The closest homology to the rrs sequence of the new Orientia sp. isolate was with three strains of O. tsutsugamushi (Ikeda, Kato, and Karp), with a nucleotide sequence similarity of 98.5%. The closest homology to the 47-kDa gene sequence was with O. tsutsugamushi strain Gilliam, with a nucleotide similarity of 82.3%, while the closest homology to the 56-kDa gene sequence was with O. tsutsugamushi strain TA686, with a nucleotide similarity of 53.1%. The molecular divergence and geographically unique origin lead us to believe that this organism should be considered a novel species. Therefore, we have proposed the name "Orientia chuto," and the prototype strain of this species is strain Dubai, named after the location in which the patient was infected.
C1 [Izzard, Leonard; Nguyen, Chelsea; Graves, Stephen; Stenos, John] Geelong Hosp, Australian Rickettsial Reference Lab Barwon Biome, Geelong, Vic 3220, Australia.
[Izzard, Leonard; Fenwick, Stan; Stenos, John] Murdoch Univ, Div Hlth Sci, Sch Vet & Biomed Sci, Murdoch, WA 6156, Australia.
[Blacksell, Stuart D.; Paris, Daniel H.; Richards, Allen L.; Aukkanit, Nuntipa; Day, Nicholas P. J.] Mahidol Univ, Fac Trop Med, Mahidol Oxford Trop Med Res Unit, Bangkok 10400, Thailand.
[Fuller, Andrew] Alfred Hosp, Melbourne, Vic 3000, Australia.
[Blacksell, Stuart D.; Paris, Daniel H.; Aukkanit, Nuntipa] Univ Oxford, Nuffield Dept Clin Med, Ctr Clin Vaccinol & Trop Med, Churchill Hosp, Oxford, England.
[Richards, Allen L.; Jiang, Ju] USN, Med Res Ctr, Viral & Rickettsial Dis Dept, Silver Spring, MD 20910 USA.
[Richards, Allen L.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
RP Stenos, J (reprint author), Barwon Hlth, ARRL, POB 281, Geelong, Vic 3220, Australia.
EM johns@barwonhealth.org.au
RI Valle, Ruben/A-7512-2013;
OI Blacksell, Stuart/0000-0001-6576-726X
NR 16
TC 26
Z9 28
U1 1
U2 8
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0095-1137
J9 J CLIN MICROBIOL
JI J. Clin. Microbiol.
PD DEC
PY 2010
VL 48
IS 12
BP 4404
EP 4409
DI 10.1128/JCM.01526-10
PG 6
WC Microbiology
SC Microbiology
GA 686JU
UT WOS:000284693400010
PM 20926708
ER
PT J
AU Baucom, JN
Thomas, JP
Pogue, WR
Qidwai, MAS
AF Baucom, J. N.
Thomas, J. P.
Pogue, W. R., III
Qidwai, M. A. Siddiq
TI Tiled Composite Laminates
SO JOURNAL OF COMPOSITE MATERIALS
LA English
DT Article
DE delamination; polymer matrix composites; joining
ID INTERLAMINAR STRESSES; DELAMINATION; DESIGN; PREDICTION; STRENGTH;
FRACTURE; ELEMENTS; FAILURE
AB This article describes our efforts to develop a meso-scale in-plane tiling technique for fiber-reinforced composite laminates. Such a technique expands the design space of the laminate, and the ability to tailor local laminate properties may provide a means, for example, to mitigate stress concentrations that arise in places such as along free edges of the laminate. Preliminary fabrication of tiled laminates produced material with an elastic modulus that is nearly equal to that of continuously reinforced laminates; however, the strength of these first specimens was significantly reduced. Finite element analyses were then performed to characterize the effects of features unique to tiled composite laminates, such as the existence of resin-rich tile-to-tile interfaces, and to explore the effects of relative arrangement of tiles through the thickness of the laminate. This led to a novel composite joint geometry as well as recommendations to minimize strength reduction. Strength retention of laminates fabricated using the new design guidelines was experimentally found to exceed 92% in comparison with the traditional analogs. Finally, we discuss the potential application of composite tiling for the suppression of free-edge delamination.
C1 [Baucom, J. N.; Thomas, J. P.; Pogue, W. R., III] USN, Res Lab, Multifunct Mat Branch, Washington, DC 20375 USA.
[Qidwai, M. A. Siddiq] USN, Res Lab, Sci Applicat Int Corp, Washington, DC 20375 USA.
RP Baucom, JN (reprint author), USN, Res Lab, Multifunct Mat Branch, Code 6350, Washington, DC 20375 USA.
EM jared.baucom@nrl.navy.mil
OI Qidwai, Siddiq/0000-0002-2389-118X
FU Office of Naval Research; Naval Research Laboratory; DoD
FX The authors gratefully acknowledge support of this study by the Office
of Naval Research and Naval Research Laboratory under the Core Research
Program. This study was supported in part by a grant of computer time
from the DoD High Performance Computing Modernization Program at ASC.
NR 21
TC 7
Z9 7
U1 0
U2 4
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0021-9983
J9 J COMPOS MATER
JI J. Compos Mater.
PD DEC
PY 2010
VL 44
IS 26
BP 3115
EP 3132
DI 10.1177/0021998310373516
PG 18
WC Materials Science, Composites
SC Materials Science
GA 690IC
UT WOS:000284995400003
ER
PT J
AU Weiss, SN
Huang, LL
Massa, L
AF Weiss, Stewart N.
Huang, Lulu
Massa, Lou
TI A Generalized Higher Order Kernel Energy Approximation Method
SO JOURNAL OF COMPUTATIONAL CHEMISTRY
LA English
DT Article
DE quantum mechanics; interaction energy; biological molecules; graph
theory; efficient energy calculation
ID GROUND-STATE ENERGIES; LARGE MOLECULES; BIOLOGICAL MACROMOLECULES;
DENSITY
AB We present a general mathematical model that can be used to improve almost all fragment-based methods for ab initio calculation of total molecular energy. Fragment-based methods of computing total molecular energy mathematically decompose a molecule into smaller fragments, quantum-mechanically compute the energies of single and multiple fragments, and then combine the computed fragment energies in some particular way to compute the total molecular energy. Because the kernel energy method (KEM) is a fragment-based method that has been used with much success on many biological molecules, our model is presented in the context of the KEM in particular. In this generalized model, the total energy is not based on sums of all possible double-, triple-, and quadruple-kernel interactions, but on the interactions of precisely those combinations of kernels that are connected in the mathematical graph that represents the fragmented molecule. This makes it possible to estimate total molecular energy with high accuracy and no superfluous computation and greatly extends the utility of the KEM and other fragment-based methods. We demonstrate the practicality and effectiveness of our model by presenting how it has been used on the yeast initiator tRNA molecule, ytRN(i)(Met) (1YFG in the Protein Data Bank), with kernel computations using the Hartree-Fock equations with a limited basis of Gaussian STO-3G type. (C) 2010 Wiley Periodicals, Inc. J Comput Chem 31: 2889-2899, 2010
C1 [Weiss, Stewart N.] CUNY Hunter Coll, Dept Comp Sci, New York, NY 10065 USA.
[Weiss, Stewart N.] CUNY, Grad Ctr, Dept Comp Sci, New York, NY 10016 USA.
[Huang, Lulu] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Massa, Lou] CUNY Hunter Coll, Dept Chem, New York, NY 10065 USA.
[Massa, Lou] CUNY, Grad Ctr, Dept Chem, New York, NY 10016 USA.
RP Weiss, SN (reprint author), CUNY Hunter Coll, Dept Comp Sci, 695 Pk Ave, New York, NY 10065 USA.
EM stewart.weiss@hunter.cuny.edu
NR 24
TC 8
Z9 8
U1 2
U2 6
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0192-8651
J9 J COMPUT CHEM
JI J. Comput. Chem.
PD DEC
PY 2010
VL 31
IS 16
BP 2889
EP 2899
DI 10.1002/jcc.21584
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA 672VT
UT WOS:000283615800008
PM 20564332
ER
PT J
AU Kaplowitz, DA
Jouet, RJ
Zachariah, MR
AF Kaplowitz, Dan A.
Jouet, R. J.
Zachariah, Michael R.
TI Aerosol synthesis and reactive behavior of faceted aluminum nanocrystals
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article
DE Growth from vapor; Aerosol; Metals; Nanocrystals
ID CHEMICAL-VAPOR-DEPOSITION; WIRE EXPLOSION PROCESS; NANOPARTICLE
OXIDATION; TRIISOBUTYLALUMINUM; POWDER; MECHANISM; SURFACES; FILMS
AB We show a low temperature gas-phase synthesis route to produce faceted aluminum crystals in the aerosol phase Use of tnisobutylaluminum whose decomposition temperature is below the melting point of elemental aluminum enabled us to grow nanocrystals from its vapor TEM shows both polyhedral crystalline and spherical particle morphologies but with the addition of an annealing furnace one can significantly enhance the production of just the polyhedral particles The results on surface passivation with oxygen suggest that these nanocrystals are less pyrophoric than the corresponding spherical aluminum nanoparticles and combustion tests show an increase in energy release compared to commercial nanoaluminum (C) 2010 Elsevier BV All rights reserved
C1 [Kaplowitz, Dan A.; Zachariah, Michael R.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20740 USA.
[Kaplowitz, Dan A.; Zachariah, Michael R.] Univ Maryland, Dept Mech Engn, College Pk, MD 20740 USA.
[Jouet, R. J.] USN, Indian Head Div, Ctr Surface Warfare, Res & Technol Dept, Indian Head, MD 20640 USA.
RP Zachariah, MR (reprint author), Univ Maryland, Dept Chem & Biochem, College Pk, MD 20740 USA.
FU Defense Threat Reduction Agency; University of Maryland Center for
Energetic Concepts Development (CECD); Maryland NanoCenter; NSF
FX We gratefully acknowledge the support of the Defense Threat Reduction
Agency the University of Maryland Center for Energetic Concepts
Development (CECD) and the Maryland NanoCenter and its NispLab The
NispLab is supported in part by the NSF as MRSEC shared experimental
facility We would also like to thank Christopher Bunker at the Air Force
Research Laboratory for detailed discussions supporting this work and
assistance with characterization of the materials
NR 18
TC 4
Z9 4
U1 3
U2 21
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 DEC 1
PY 2010
VL 312
IS 24
BP 3625
EP 3630
DI 10.1016/jjcrysgro.2010.09.015
PG 6
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 689HD
UT WOS:000284917800014
ER
PT J
AU Oweis, GF
Winkel, ES
Cutbrith, JM
Ceccio, SL
Perlin, M
Dowling, DR
AF Oweis, Ghanem F.
Winkel, Eric S.
Cutbrith, James M.
Ceccio, Steven L.
Perlin, Marc
Dowling, David R.
TI The mean velocity profile of a smooth-flat-plate turbulent boundary
layer at high Reynolds number
SO JOURNAL OF FLUID MECHANICS
LA English
DT Article
DE turbulent boundary layers
ID FRICTION DRAG REDUCTION; INTERMEDIATE REGION; WALL; FLOWS; INTENSITY;
CHANNEL; BALANCE; STRESS; LAW
AB Smooth flat-plate turbulent boundary layers (TBLs) have been studied for nearly a century. However, there is a relative dearth of measurements at Reynolds numbers typical of full-scale marine and aerospace transportation systems (Re(theta) = U(e)theta/nu > 10(5), where U(e) = free-stream speed, theta = TBL momentum thickness and nu = kinematic viscosity). This paper presents new experimental results for the TBL that forms on a smooth flat plate at nominal Re(theta) values of 0.5 x 10(5), 1.0 x 10(5) and 1.5 x 10(5). Nominal boundary layer thicknesses (delta) were 80-90 mm, and Karman numbers (delta(+)) were 17 000, 32 000 and 47 000, respectively. The experiments were conducted in the William B. Morgan Large Cavitation Channel on a polished (k(+) < 0.2) flat-plate test model 12.9m long and 3.05 m wide at water flow speeds up to 20 ms(-1). Direct measurements of static pressure and mean wall shear stress were obtained with pressure taps and floating-plate skin friction force balances. The TBL developed a mild favourable pressure gradient that led to a streamwise flow speed increase of similar to 2.5% over the 11 m long test surface, and was consistent with test section sidewall and model surface boundarylayer growth. At each Re(theta), mean streamwise velocity profile pairs, separated by 24 cm, were measured more than 10 m from the model's leading edge using conventional laser Doppler velocimetry. Between these profile pairs, a unique near-wall implementation of particle tracking velocimetry was used to measure the near-wall velocity profile. The composite profile measurements span the wall-normal coordinate range from y(+) < 1 to y > 2 delta. To within experimental uncertainty, the measured mean velocity profiles can be fit using traditional zero-pressure-gradient (ZPG) TBL asymptotics with some modifications for the mild favourable pressure gradient. The fitted profile pairs satisfy the von-Karman momentum integral equation to within 1%. However, the profiles reported here show distinct differences from equivalent ZPG profiles. The near-wall indicator function has more prominent extrema, the log-law constants differ slightly, and the profiles' wake component is less pronounced.
C1 [Winkel, Eric S.; Ceccio, Steven L.; Dowling, David R.] Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
[Oweis, Ghanem F.] Amer Univ Beirut, Dept Mech Engn, Fac Engn & Architecture, Beirut 11072020, Lebanon.
[Cutbrith, James M.] USN, Carderock Div, Ctr Surface Warfare, WB Morgan Large Cavitat Channel, Memphis, TN 38113 USA.
[Perlin, Marc] Univ Michigan, Dept Naval Architecture & Marine Engn, Ann Arbor, MI 48109 USA.
RP Dowling, DR (reprint author), Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
EM drd@umich.edu
FU Defense Advanced Research Projects Agency; Office of Naval Research
FX The authors would like to thank the technical staff of the US Navy's
William B. Morgan Large Cavitation Channel, especially Mr R. Etter. In
addition, Mr K. Pruss, Mr W. Kirkpatrick and co-workers of the
University of Michigan machine shops contributed substantially to the
construction of the test model and instrumentation. Mr D. Brown of the
Johns Hopkins University Applied Physics Laboratory and Dr H. Petrie of
the Pennsylvania State University provided helpful insight and advice.
This research was sponsored by the Defense Advanced Research Projects
Agency (Dr L. Porter, Program Manager) and the Office of Naval Research
(Dr L. P. Purtell, Program Manager). The content of this document does
not necessarily reflect the position or the policy of the United States
Government, and no official endorsement should be inferred.
NR 42
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Z9 17
U1 3
U2 20
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-1120
J9 J FLUID MECH
JI J. Fluid Mech.
PD DEC
PY 2010
VL 665
BP 357
EP 381
DI 10.1017/S0022112010003952
PG 25
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 696WT
UT WOS:000285472800013
ER
PT J
AU Effler, SW
Perkins, M
Peng, F
Strait, C
Weidemann, AD
Auer, MT
AF Effler, Steven W.
Perkins, MaryGail
Peng, Feng
Strait, Christopher
Weidemann, Alan D.
Auer, Martin T.
TI Light-absorbing components in Lake Superior
SO JOURNAL OF GREAT LAKES RESEARCH
LA English
DT Article
DE Lake Superior; Light absorption; Minerogenic particles; Remote sensing
ID DISSOLVED ORGANIC-MATTER; ABSORPTION SPECTRAL SLOPES; NEW-YORK;
MINEROGENIC PARTICLES; OPTICAL-PROPERTIES; ONONDAGA LAKE; FINGER LAKES;
SCATTERING; CHLOROPHYLL; WATERS
AB Features of light absorption are critical to optical aspects of water quality and in regulating the signal available for remote sensing. Spectral characteristics and spatial patterns of light-absorbing components, and their relationships with optically active constituents, are documented for the Sturgeon River, Keweenaw Bay, and Lake Superior based on analyses of samples collected on two cruises (2006 and 2007, 20 sites). The absorption coefficient, a (m(-1)), is partitioned according to the additive components (a(x)) of colored dissolved organic matter (a(CDOM)), non-algal particles (a(NAP)), phytoplankton (a(phi),), and water itself (a(w): known). The role of minerogenic particles and their iron content in regulating amp is evaluated based on paired measurements by an individual particle analysis technique (Peng et al., 2009), through empirical analyses and Mie theory calculations of absorption by these particles (a(m)). Spectral characteristics of amp and a(phi)) were consistent with those reported for other case 2 (i.e., phytoplankton not dominant) systems. However, the slope values that describe a(CDOM) spectra for the bay and the lake were unusually low, suggesting an atypical composition for the lake's CDOM. The dominant absorbing component in the blue wavelengths was CDOM, representing >= 75% of a at a wavelength of 440 nm at all sites in the 2006 survey. A general gradient in both a(CDOM) and a(NAP) extended from the Sturgeon River, through the bay, into eastern Lake Superior in that survey. Relationships between a(x) and optically active constituents were within the broad ranges reported for other case 2 systems. Minerogenic particles, related to their iron content, are demonstrated to be an important component of a(NAP). (C) 2010 International Association for Great Lakes Research. Published by Elsevier B.V. All rights reserved.
C1 [Effler, Steven W.; Perkins, MaryGail; Peng, Feng; Strait, Christopher] Upstate Freshwater Inst, Syracuse, NY 13214 USA.
[Weidemann, Alan D.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Auer, Martin T.] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA.
RP Effler, SW (reprint author), Upstate Freshwater Inst, POB 506, Syracuse, NY 13214 USA.
EM sweffler@upstatefreshwater.org
OI Peng, Feng/0000-0002-3616-1063
FU Naval Research Laboratory
FX Funding for this research was provided in part by Naval Research
Laboratory for the "Lidar and hyperspectral remote sensing of the
littoral environment" project. Sampling and field optical measurements
were assisted by Tony Prestigiacomo aboard the U.S. Environmental
Protection Agency's R/V Lake Guardian (pelagic waters of lake Superior)
and Michigan Technological University's R/V Agassiz (Keweenaw Bay).
Laboratory analyses of absorption and chlorophyll a concentrations were
performed by Lingsen Zhang and Whitney Forbes, respectively. U.S. EPA
graciously contributed ship time aboard the R/V Lake Guardian to
Michigan Tech as part of a cruise combining graduate instruction and
value-added research. This is contribution 275 of the Upstate Freshwater
Institute.
NR 47
TC 18
Z9 18
U1 4
U2 19
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0380-1330
J9 J GREAT LAKES RES
JI J. Gt. Lakes Res.
PD DEC
PY 2010
VL 36
IS 4
BP 656
EP 665
DI 10.1016/j.jglr.2010.08.001
PG 10
WC Environmental Sciences; Limnology; Marine & Freshwater Biology
SC Environmental Sciences & Ecology; Marine & Freshwater Biology
GA 692QN
UT WOS:000285170300009
ER
PT J
AU Joye, CD
Calame, JP
Garven, M
Levush, B
AF Joye, Colin D.
Calame, Jeffrey P.
Garven, Morag
Levush, Baruch
TI UV-LIGA microfabrication of 220 GHz sheet beam amplifier gratings with
SU-8 photoresists
SO JOURNAL OF MICROMECHANICS AND MICROENGINEERING
LA English
DT Article
ID HIGH-ASPECT-RATIO; COPPER ELECTRODEPOSITION; ADDITIVES; MICROSTRUCTURES;
LITHOGRAPHY; MICROVIA; REMOVAL; CATHODE; PULSE
AB Microfabrication techniques have been developed using ultraviolet photolithography (UV-LIGA) with SU-8 photoresists to create advanced sheet beam amplifier circuits for the next generation of vacuum electron traveling wave amplifiers in the 210-220 GHz (G-band) frequency regime. We describe methods that have led to successfully fabricated millimeter wave circuits, including applying ultra-thick SU-8 photoresist layers on copper, copper electroforming solutions, and the challenging removal of the SU-8 photoresists. A table of experimental liquid SU-8 removal chemistries and results is also presented.
C1 [Joye, Colin D.; Calame, Jeffrey P.; Levush, Baruch] USN, Res Lab, Washington, DC 20375 USA.
[Garven, Morag] Sci Applicat Int Corp, Mclean, VA 22102 USA.
RP Joye, CD (reprint author), USN, Res Lab, Code 6840, Washington, DC 20375 USA.
EM colin.joye@nrl.navy.mil
FU US Office of Naval Research
FX Funding for this work was provided by the US Office of Naval Research.
The authors wish to acknowledge the work of Dr R Bass of NRL Code 6853
for procuring the masks, and Mr B S Albright and Mr L N Blankenship for
technical assistance.
NR 34
TC 19
Z9 19
U1 2
U2 24
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0960-1317
J9 J MICROMECH MICROENG
JI J. Micromech. Microeng.
PD DEC
PY 2010
VL 20
IS 12
AR 125016
DI 10.1088/0960-1317/20/12/125016
PG 11
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Instruments & Instrumentation; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Instruments &
Instrumentation; Physics
GA 688CX
UT WOS:000284828500016
ER
PT J
AU Readnower, RD
Chavko, M
Adeeb, S
Conroy, MD
Pauly, JR
McCarron, RM
Sullivan, PG
AF Readnower, Ryan D.
Chavko, Mikulas
Adeeb, Saleena
Conroy, Michael D.
Pauly, James R.
McCarron, Richard M.
Sullivan, Patrick G.
TI Increase in Blood-Brain Barrier Permeability, Oxidative Stress, and
Activated Microglia in a Rat Model of Blast-Induced Traumatic Brain
Injury
SO JOURNAL OF NEUROSCIENCE RESEARCH
LA English
DT Article
DE traumatic brain injury; oxidative stress; inflammation; blood-brain
barrier; PK11195
ID BENZODIAZEPINE BINDING-SITES; PERIPHERAL BENZODIAZEPINE; INDUCED
NEUROTRAUMA; HEAD-INJURY; EXERCISE PERFORMANCE; NEURONAL DEATH; LUNG
INJURY; MOUSE MODEL; TIME-COURSE; EXPOSURE
AB Traumatic brain injury (TBI) as a consequence of exposure to blast is increasingly prevalent in military populations, with the underlying pathophysiological mechanisms mostly unknown. In the present study, we utilized an air-driven shock tube to investigate the effects of blast exposure (120 kPa) on rat brains. Immediately following exposure to blast, neurological function was reduced. BBB permeability was measured using IgG antibody and evaluating its immunoreactivity in the brain. At 3 and 24 hr postexposure, there was a transient significant increase in IgG staining in the cortex. At 3 days postexposure, IgG immunoreactivity returned to control levels. Quantitative immunostaining was employed to determine the temporal course of brain oxidative stress following exposure to blast. Levels of 4-hydroxynonenal (4-HNE) and 3-nitrotyrosine (3-NT) were significantly increased at 3 hr postexposure and returned to control levels at 24 hr postexposure. The response of microglia to blast exposure was determined by autoradiographic localization of H-3-PK11195 binding. At 5 days postexposure, increased binding was observed in the contralateral and ipsilateral dentate gyrus. These regions also displayed increased binding at 10 days postexposure; in addition to these regions there was increased binding in the contralateral ventral hippocampus and substantia nigra at this time point. By using antibodies against CD11b/c, microglia morphology characteristic of activated microglia was observed in the hippocampus and substantia nigra of animals exposed to blast. These results indicate that BBB breakdown, oxidative stress, and microglia activation likely play a role in the neuropathology associated with TBI as a result of blast exposure. (C) 2010 Wiley-Liss, Inc.
C1 [Readnower, Ryan D.; Conroy, Michael D.; Pauly, James R.; Sullivan, Patrick G.] Univ Kentucky, Spinal Cord & Brain Injury Res Ctr, Lexington, KY USA.
[Chavko, Mikulas; Adeeb, Saleena; McCarron, Richard M.] USN, Med Res Ctr, Silver Spring, MD USA.
RP Sullivan, PG (reprint author), 741 S Limestone,BBSRB 475, Lexington, KY 40536 USA.
EM patsull@email.uky.edu
FU Office of Naval Research Work Unit [601153N.04508.5180.A0805]; National
Institutes of Health [5T32 DA022738]
FX Contract grant sponsor: Office of Naval Research Work Unit
601153N.04508.5180.A0805; Contract grant sponsor: National Institutes of
Health; Contract grant number: 5T32 DA022738.
NR 62
TC 91
Z9 94
U1 4
U2 22
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0360-4012
J9 J NEUROSCI RES
JI J. Neurosci. Res.
PD DEC
PY 2010
VL 88
IS 16
BP 3530
EP 3539
DI 10.1002/jnr.22510
PG 10
WC Neurosciences
SC Neurosciences & Neurology
GA 679WJ
UT WOS:000284191200011
PM 20882564
ER
PT J
AU Wachs, JP
Kolsch, M
Goshorn, D
AF Wachs, Juan P.
Koelsch, Mathias
Goshorn, Deborah
TI Human posture recognition for intelligent vehicles
SO JOURNAL OF REAL-TIME IMAGE PROCESSING
LA English
DT Article
DE Articulated body posture recognition; Pose detection; Computer vision;
Gesture recognition; Syntactical behavior classifiers; Error correction
ID PEDESTRIAN DETECTION; CLASSIFICATION; FEATURES
AB Pedestrian detection systems are finding their way into many modern "intelligent" vehicles. The body posture could reveal further insight about the pedestrian's intent and her awareness of the oncoming car. This article details the algorithms and implementation of a library for real-time body posture recognition. It requires prior person detection and then calculates overall stance, torso orientation in four increments, and head location and orientation, all based on individual frames. A syntactic post-processing module takes temporal information into account and smoothes the results over time while correcting improbable configurations. We show accuracy and timing measurements for the library and its utilization in a training application.
C1 [Wachs, Juan P.] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
[Koelsch, Mathias; Goshorn, Deborah] USN, Postgrad Sch, MOVES Inst, Monterey, CA USA.
RP Wachs, JP (reprint author), Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
EM jpwachs@purdue.edu
OI Wachs, Juan/0000-0002-6425-5745
FU Office of Naval Research
FX This research was supported by a grant from the Office of Naval Research
and it was performed while the first author held a National Research
Council Research Associateship Award at the Naval Postgraduate School.
NR 28
TC 4
Z9 4
U1 0
U2 3
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1861-8200
EI 1861-8219
J9 J REAL-TIME IMAGE PR
JI J. Real-Time Image Process.
PD DEC
PY 2010
VL 5
IS 4
SI SI
BP 231
EP 244
DI 10.1007/s11554-010-0150-0
PG 14
WC Computer Science, Artificial Intelligence; Engineering, Electrical &
Electronic; Imaging Science & Photographic Technology
SC Computer Science; Engineering; Imaging Science & Photographic Technology
GA 681PX
UT WOS:000284330400003
ER
PT J
AU Nichols, JM
Seaver, M
Trickey, ST
Scandell, K
Salvino, LW
Aktas, E
AF Nichols, J. M.
Seaver, M.
Trickey, S. T.
Scandell, K.
Salvino, L. W.
Aktas, E.
TI Real-Time Strain Monitoring of a Navy Vessel During Open Water Transit
SO JOURNAL OF SHIP RESEARCH
LA English
DT Article
DE fiber optics; U S Navy; vessel management
ID SENSORS; SYSTEM
AB In this work we describe the installation of a real-time, fiber-optic strain monitoring system aboard a US Navy vessel undergoing sea trials The system is lightweight, unintrusive, corrosion resistant, and provides dynamic strain response measurements from direct current (DC) up to 360 Hz Also described are the data acquisition and subsequent analysis The goals of the study were to demonstrate a fiber-optic strain monitoring system under real world conditions and to better understand the source of deck cracking above an area housing mission-critical components The results of the two-day trial indicate that there exist large stresses in the deck plate during normal ship operation Based on the results, it is clear that ship maneuvers, slewing of the radar located on the deck plate, and Insolation-related effects are not the primary source of the observed stress
C1 USN, Res Lab, Washington, DC 20375 USA.
[Scandell, K.; Salvino, L. W.] USN, Sea Syst Command, Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD USA.
NR 7
TC 5
Z9 5
U1 1
U2 5
PU SOC NAVAL ARCH MARINE ENG
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 0022-4502
J9 J SHIP RES
JI J. Ship Res.
PD DEC
PY 2010
VL 54
IS 4
BP 225
EP 230
PG 6
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA 683CX
UT WOS:000284450400001
ER
PT J
AU Mansour, AN
Badway, F
Yoon, WS
Chung, KY
Amatucci, GG
AF Mansour, A. N.
Badway, F.
Yoon, W-S.
Chung, K. Y.
Amatucci, G. G.
TI In situ X-ray absorption spectroscopic investigation of the
electrochemical conversion reactions of CuF2-MoO3 nanocomposite
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE Copper fluorides; Conversion reactions; Energy storage; X-ray absorption
spectroscopy; Redox couple; Lithium batteries; Nanocomposite
ID NEAR-EDGE-STRUCTURE; FINE-STRUCTURE; FLUORIDE NANOCOMPOSITES; REVERSIBLE
FORMATION; METAL FLUORIDES; CLUSTERS; LITHIUM; CU; DIFFRACTION;
BATTERIES
AB We have used X-ray absorption spectroscopy at the Cu K-edge to investigate the electrochemical conversion reaction of 20 nm size 85 wt% CuF2-15 wt% MoO3 nanocomposite under in situ conditions. The nanocomposite was prepared by high energy milling. Upon discharge, the lithiation reaction with the nanocomposite resulted in the formation of nanophase metallic Cu, which is consistent with the conversion of CuF2 into Cu and LiF. Based on XANES and Fourier transforms of EXAFS spectra, we show that the discharge process proceeded via the formation of highly dispersed Cu particles. Based on the coordination number of the first shell of Cu, the average size of the Cu particles was estimated to be in the 1-3 nm range in the fully discharged state. (c) 2010 Elsevier Inc. All rights reserved.
C1 [Mansour, A. N.] USN, Ctr Surface Warfare, Carderock Div, Syst & Mat Power & Protect Branch, Bethesda, MD 20817 USA.
[Badway, F.; Amatucci, G. G.] Rutgers State Univ, Energy Storage Res Grp, Dept Mat Sci & Engn, N Brunswick, NJ 08902 USA.
[Yoon, W-S.] Kookmin Univ, Sch Adv Mat Eng, Seoul 136702, South Korea.
[Chung, K. Y.] Korea Inst Sci & Technol, Battery Res Ctr, Seoul 136791, South Korea.
RP Mansour, AN (reprint author), USN, Ctr Surface Warfare, Carderock Div, Syst & Mat Power & Protect Branch, 9500 MacArthur Blvd, Bethesda, MD 20817 USA.
EM Azzam.Mansour@navy.mil
RI Yoon, Won-Sub/H-2343-2011; Chung, Kyung Yoon/E-4646-2011
OI Chung, Kyung Yoon/0000-0002-1273-746X
FU Carderock Division of the Naval Surface Warfare Center [0601152N]; U.S.
Government; US Department of Energy, Office of Basic Energy Sciences
[DE-AC02-98CH10886]; Priority Research Centers [2009-0093814]; CMPS of
MEST/NRF [R11-2005-048-00000-0]
FX ANM acknowledges support by the Carderock Division of the Naval Surface
Warfare Center's In-house Laboratory Independent Research Program
administrated under ONR's Program Element 0601152N. GGA acknowledges
support by the U.S. Government. The XAS experiments were conducted at
the National Synchrotron Light Source of Brookhaven National Laboratory,
which is supported by the US Department of Energy, Office of Basic
Energy Sciences, under Contract no. DE-AC02-98CH10886. This work at
Kookmin University was supported by Priority Research Centers Program
(2009-0093814) and the CMPS (R11-2005-048-00000-0) of MEST/NRF.
NR 47
TC 16
Z9 17
U1 6
U2 42
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD DEC
PY 2010
VL 183
IS 12
BP 3029
EP 3038
DI 10.1016/j.jssc.2010.09.029
PG 10
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA 696GY
UT WOS:000285431100040
ER
PT J
AU Smith, HE
Kerr, SM
Fehlings, MG
Chapman, J
Maltenfort, M
Zavlasky, J
Harris, E
Albert, TJ
Harrop, J
Hilibrand, AS
Anderson, DG
Vaccaro, AR
AF Smith, Harvey E.
Kerr, Stewart M.
Fehlings, Michael G.
Chapman, Jens
Maltenfort, Mitchell
Zavlasky, James
Harris, Eric
Albert, Todd J.
Harrop, James
Hilibrand, Alan S.
Anderson, D. Greg
Vaccaro, Alexander R.
TI Trends in Epidemiology and Management of Type II Odontoid Fractures
20-Year Experience at a Model System Spine Injury Tertiary Referral
Center
SO JOURNAL OF SPINAL DISORDERS & TECHNIQUES
LA English
DT Article
DE type II odontoid fracture; spine trauma
ID ANTERIOR SCREW FIXATION; CERVICAL-SPINE; DENS FRACTURES; MYELOPATHY;
REMOTE; AXIS
AB Study Design: A retrospective cohort study of consecutive type II Odontoid fractures presenting to a Level 1 Regional Model Systems Spinal Cord Injury Center between June 1985 and July 2006.
Objective: To assess trends in management of type II Odontoid fractures presenting to a Level 1 Model Systems Regional Spinal Cord Injury Center over a 20-year period.
Summary of Background Data: Type II Odontoid fracture management is controversial, and a majority of studies have had relatively small cohorts. There is no consensus regarding definitive treatment, particularly in older patients.
Methods: Medical records of 263 consecutive type II Odontoid fractures from June 1985 to July 2006 were retrospectively reviewed. Patients were excluded if they had neurologic deficits, nonacute fracture, or ambiguous fracture classification. A cohort of 192 neurologically intact, acute type II odontoid fractures were identified. Admission records were reviewed for age, date of injury, date of admission, date of discharge, mechanism of injury, associated injuries, medical comorbidities, and radiologic findings.
Results: There was a statistically significant increase in the rate of presentation of type II odontoid fractures with time. The average age and medical comorbidities of the patient did not change over time. The probability of operative management markedly increased over time, corresponding to a statistically significant increase in length of hospital stay for patients undergoing surgery. The discharge disposition correlated significantly to both age of the patient and associated injuries.
Conclusions: The number and frequency of type II odontoid fractures compared with other spine injuries seems to be increasing over the last 2 decades, which may be correlated with the increasing number of elderly persons in the population, given that referral patterns have been unchanged at our institution. Prospective outcomes data are needed to better elucidate optimal treatment algorithms from both, an outcomes and cost-efficacy perspective.
C1 [Smith, Harvey E.] Methodist Hosp, Ctr Orthopaed Surg, Houston, TX 77030 USA.
[Kerr, Stewart M.] USN, Med Ctr Portsmouth, Portsmouth, VA USA.
[Harrop, James] Thomas Jefferson Univ Hosp, Dept Neurosurg, Philadelphia, PA 19107 USA.
[Fehlings, Michael G.] Univ Toronto, Div Neurosurg, Toronto, ON M5S 1A1, Canada.
[Chapman, Jens] Univ Washington, Sch Med, Dept Orthopaed Surg, Seattle, WA USA.
[Chapman, Jens] Univ Washington, Sch Med, Dept Neurol Surg, Seattle, WA USA.
[Harris, Eric] Thomas Jefferson Univ Hosp, Dept Orthopaed Surg, Philadelphia, PA 19107 USA.
[Zavlasky, James; Albert, Todd J.; Hilibrand, Alan S.; Anderson, D. Greg; Vaccaro, Alexander R.] Thomas Jefferson Univ, Dept Orthopaed Surg, Philadelphia, PA 19107 USA.
[Maltenfort, Mitchell] Thomas Jefferson Univ, Dept Neurol Surg, Philadelphia, PA 19107 USA.
[Albert, Todd J.; Hilibrand, Alan S.; Anderson, D. Greg; Vaccaro, Alexander R.] Rothman Inst, Philadelphia, PA USA.
RP Smith, HE (reprint author), Methodist Hosp, Ctr Orthopaed Surg, 6550 Fannin,Smith Tower 25th Floor, Houston, TX 77030 USA.
EM Harveysmith27@gmail.com
RI AOCID, AO Foundation/R-6455-2016
FU AO Spine North America, a nonprofit public foundation
FX This study was supported by a grant from the AO Spine North America, a
nonprofit public foundation.
NR 25
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U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1536-0652
J9 J SPINAL DISORD TECH
JI J. Spinal Disord. Tech.
PD DEC
PY 2010
VL 23
IS 8
BP 501
EP 505
DI 10.1097/BSD.0b013e3181cc43c7
PG 5
WC Clinical Neurology; Orthopedics
SC Neurosciences & Neurology; Orthopedics
GA 689QG
UT WOS:000284942700010
PM 20940632
ER
PT J
AU Trickey, JS
Branstetter, BK
Finneran, JJ
AF Trickey, Jennifer S.
Branstetter, Brian K.
Finneran, James J.
TI Auditory masking of a 10 kHz tone with environmental, comodulated, and
Gaussian noise in bottlenose dolphins (Tursiops truncatus)
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID CRITICAL RATIOS; CRITICAL BANDWIDTH; 3 PINNIPEDS; RELEASE; UNDERWATER;
DURATION; PATTERN; BAND
AB The pattern of auditory masking derived from Gaussian noise is often cited and used to predict the detrimental effects of masking noise on marine mammals. However, environmental noise (both anthropogenic and natural) may not always be Gaussian distributed. Some noise sources are highly structured with complex amplitude fluctuations that extend across frequency regions, which are often termed comodulated noise. Recent evidence with bottlenose dolphins using comodulated noise demonstrated a significant release from masking compared to Gaussian maskers of the same bandwidth and pressure spectral density level, a result known as comodulation masking release. The present study demonstrates a pattern of masking where both temporally fluctuating comodulated noise and environmental noise produce lower masked thresholds compared to Gaussian noise of the same spectral density level and bandwidth. Furthermore, a threshold reduction or "masking release" occurred when the environmental noise bandwidth increased beyond a critical band. These results provide further evidence that conventional models of auditory masking using Gaussian maskers (i.e., the power spectrum model) do not fully describe the masking effects that occur in realistic environments. (C) 2010 Acoustical Society of America. [DOI: 10.1121/1.3506367]
C1 [Trickey, Jennifer S.] G2 Software Syst Inc, San Diego, CA 92110 USA.
[Branstetter, Brian K.] Natl Marine Mammal Fdn, San Diego, CA 92106 USA.
[Finneran, James J.] USN, Marine Mammal Program, Space & Naval Warfare Syst Ctr Pacific, San Diego, CA 92152 USA.
RP Trickey, JS (reprint author), G2 Software Syst Inc, 4250 Pacific Highway,Suite 125, San Diego, CA 92110 USA.
EM trickey@g2ss.com
OI Trickey, Jennifer/0000-0002-6080-8744
FU Office of Naval Research
FX We would like to thank Hitomi Aihara, Linda Green, Erik Robinson, Megan
Sloan, and Megan Tormey for animal training, and Patrick Moore for
helpful suggestions and technical support. Financial support was
provided by the Office of Naval Research. We would also like to thank
two anonymous reviewers for suggestions on an earlier draft.
NR 21
TC 9
Z9 9
U1 2
U2 11
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD DEC
PY 2010
VL 128
IS 6
BP 3799
EP 3804
DI 10.1121/1.3506367
PG 6
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 704OF
UT WOS:000286061600055
PM 21218911
ER
PT J
AU Fritz, BK
Hoffmann, WC
Farooq, M
Walker, T
Bonds, J
AF Fritz, Bradley K.
Hoffmann, W. Clint
Farooq, Muhammad
Walker, Todd
Bonds, Jane
TI FILTRATION EFFECTS DUE TO BIOASSAY CAGE DESIGN AND SCREEN TYPE
SO JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
LA English
DT Article
DE Bioassay cages; spray flux; spray filtration
ID COLLECTION EFFICIENCY; MOSQUITO BIOASSAY; ULV MALATHION; DROPLET SIZE;
AIR-FLOW; PENETRATION; SAMPLERS; AEROSOLS
AB The use of bioassay cages in the efficacy assessment of pesticides, application techniques, and technologies is common practice using numerous cage designs, which vary in both shape and size as well as type of mesh. The objective of this work was to examine various cage shapes and mesh types for their filtration effects on air speed, spray droplet size, and spray volume. Reductions in wind speed and droplet size seen inside the cages were measured by placing cages in a low-speed wind tunnel at air speeds of 0.5 m/sec, 1 m/sec, 2 m/sec, and 4 m/sec and cage face orientations (relative to the air stream) of 0 degrees, 10 degrees, 22.5 degrees, and 45 degrees. Reduction in spray volume inside a select number of cages was also evaluated under similar conditions. Generally, greater air speed reductions were seen at lower external air speeds with overall reductions ranging from 30% to 88%, depending on cage type and tunnel air speed. Cages constructed with screens of lower porosities and smaller cylindrical-shaped cages tended to provide greater resistance to air flow and spray volume. Overall, spray droplet size inside the cages was minimally reduced by 0-10%. There was a 32-100% reduction in concentration of the spray volume applied relative to that recovered inside the bioassay cages, depending on the cage geometry and screening material used. In general, concentration reductions were greatest at lower air speeds and for cages with lower porosity screens. As a result of this work, field researchers involved in assessing the efficacy of vector control applications will have a better understanding of the air speed and spray volume entering insect bioassay cages, relative to the amount applied, resulting in better recommended application techniques and dosage levels.
C1 [Fritz, Bradley K.; Hoffmann, W. Clint] ARS, USDA, Areawide Pest Management Res Unit, College Stn, TX 77845 USA.
[Farooq, Muhammad; Walker, Todd] USN, Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
[Bonds, Jane] Florida A&M Univ, Publ Hlth Entomol Res & Educ Ctr, Panama City, FL 32405 USA.
RP Fritz, BK (reprint author), ARS, USDA, Areawide Pest Management Res Unit, 2771 F&B Rd, College Stn, TX 77845 USA.
FU Department of Defense through the Armed Forces Pest Management Board
FX This study was supported in part by a grant from the Deployed
War-Fighter Protection Research Program, funded by the U.S. Department
of Defense through the Armed Forces Pest Management Board.
NR 22
TC 6
Z9 7
U1 0
U2 3
PU AMER MOSQUITO CONTROL ASSOC
PI EATONTOWN
PA P O BOX 234, EATONTOWN, NJ 07724-0234 USA
SN 8756-971X
J9 J AM MOSQUITO CONTR
JI J. Am. Mosq. Control Assoc.
PD DEC
PY 2010
VL 26
IS 4
BP 411
EP 421
DI 10.2987/10-6031.1
PG 11
WC Entomology
SC Entomology
GA 697QI
UT WOS:000285529800007
PM 21290937
ER
PT J
AU Farooq, M
Walker, TW
Heintschel, BP
Hoffmann, WC
Fritz, BK
Smith, VL
Robinson, CA
English, T
AF Farooq, Muhammad
Walker, Todd W.
Heintschel, Bryan P.
Hoffmann, Wesley C.
Fritz, Bradley K.
Smith, Vincent L.
Robinson, Cathy A.
English, Trey
TI IMPACT OF ELECTROSTATIC AND CONVENTIONAL SPRAYERS CHARACTERISTICS ON
DISPERSION OF BARRIER SPRAY
SO JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
LA English
DT Article
DE Charge-mass ratio; evaluation; barrier sprays; residual spray; mosquito
control
ID MOSQUITO-CONTROL; CROSS-FLOW
AB A study was conducted to analyze the performance of 3 electrostatic (Electrolon BP2.5 (TM), Spectrum Electrostatic 4010, and Spectrum Electrostatic head on a Stihl 420) and 2 conventional (Buffalo Turbine CSM2 and Stihl 420) sprayers for barrier sprays to suppress an adult mosquito population in an enclosed area. Sprayer characteristics such as charge-mass ratio, air velocity, flow rate, and droplet spectra were measured while spraying water. Dispersion of the spray cloud from these sprayers was determined using coverage on water-sensitive cards at various heights (0.5 m, 1.0 m, 1.5 m, 2.0 m, 2.5 m, and 3.0 m) and depths (I m, 3 m, and 5 m) into the under-forest vegetation while spraying bifenthrin (Talstar (TM) 7.9% AI; FMC Corporation, Philadelphia, PA) at the rate of 21.8 ml/300 m of treated row. The charge-mass ratio data show that Electrostatic head on a Stihl 420 did not impart enough charge to the droplets to be considered as an electrostatic sprayer. In general, the charged spray cloud moved down toward the ground. The Electrolon BP 2.5 had significantly lower spray coverage on cards, indicating lack of spray dispersion. This sprayer had the lowest air velocity and did not have the air capacity needed to deliver droplets close to the target for electrostatic force to affect deposition. The analysis shows that these 2 sprayers are not a suitable choice for barrier sprays on vegetation. The results indicate that the Buffalo Turbine is suitable for barriers wider than 3 m, and the Spectrum 4010 and Stihl 420 are suitable for 1-3-m-wide barriers.
C1 [Farooq, Muhammad; Walker, Todd W.; Heintschel, Bryan P.; Smith, Vincent L.; Robinson, Cathy A.] USN, Navy Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
[Hoffmann, Wesley C.; Fritz, Bradley K.] ARS, USDA, Area Wide Pest Management Res Unit, College Stn, TX USA.
[English, Trey] Adapco, Sanford, FL 32771 USA.
RP Farooq, M (reprint author), USN, Navy Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
FU U.S. Department of Defense through the Armed Forces Pest Management
Board (AFPMB)
FX This study was supported in part by a grant from the Deployed
War-Fighter Protection (DWFP) Research Program, funded by the U.S.
Department of Defense through the Armed Forces Pest Management Board
(AFPMB). We thank Eric Paulsen of CMAVE Gainesville for fabrication of
the test bench.
NR 18
TC 4
Z9 4
U1 0
U2 4
PU AMER MOSQUITO CONTROL ASSOC
PI EATONTOWN
PA P O BOX 234, EATONTOWN, NJ 07724-0234 USA
SN 8756-971X
J9 J AM MOSQUITO CONTR
JI J. Am. Mosq. Control Assoc.
PD DEC
PY 2010
VL 26
IS 4
BP 422
EP 429
DI 10.2987/09-5891.1
PG 8
WC Entomology
SC Entomology
GA 697QI
UT WOS:000285529800008
PM 21290938
ER
PT J
AU Miller, JS
Hoel, LA
Smith, MM
AF Miller, John S.
Hoel, Lester A.
Smith, Michelle M.
TI Evaluating Unplanned Stand-Alone Transportation Projects: Linking
Incremental and Comprehensive Planning
SO JOURNAL OF URBAN PLANNING AND DEVELOPMENT-ASCE
LA English
DT Article
DE Evaluation; Planning; Decision making; Urban development; Transportation
corridors
ID GROWTH MANAGEMENT; STATES
AB Transportation agencies may review proposed projects that were not examined as part of the long range planning process. Typically, these projects require an immediate response and lack detailed data. This paper describes a methodology to assess such unplanned or "stand-alone" transportation projects and applies it to two case studies: a large development involving several major new highway sections and a pedestrian crossing of a four-lane arterial bisecting residential and commercial areas. The methodology specifies the trade-offs and uncertainties of the proposed stand-alone projects. For example, adding phasing to an existing signal resulted in a lower capital cost, and a lower feasibility of pedestrian use, than constructing an overpass. Yet, neither alternative assures crash risk is minimized because the extent of pedestrian compliance with traffic laws is not known. The outcome is thus a timely clarification of each alternative's advantages which can be compared to existing policies. Limitations are the availability of site-specific knowledge, the willingness to articulate difficult choices that are clarified by this work, and the feasibility of fully considering cumulative impacts. However, by formalizing the analysis of stand-alone projects, the methodology strengthens the link between such incremental decision making and comprehensive long range planning.
C1 [Miller, John S.] Virginia Transportat Res Council, Charlottesville, VA 22903 USA.
[Hoel, Lester A.] Univ Virginia, St Helena, CA 94574 USA.
[Smith, Michelle M.] USN, Facil Engn Command, San Diego, CA 92101 USA.
RP Miller, JS (reprint author), Virginia Transportat Res Council, 530 Edgemont Rd, Charlottesville, VA 22903 USA.
EM john.miller@vdot.virginia.gov; lah@virginia.edu;
michellemarie6483@gmail.com
NR 50
TC 1
Z9 1
U1 1
U2 5
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-9488
J9 J URBAN PLAN D-ASCE
JI J. Urban Plan. Dev.-ASCE
PD DEC
PY 2010
VL 136
IS 4
BP 320
EP 329
DI 10.1061/(ASCE)UP.1943-5444.0000032
PG 10
WC Engineering, Civil; Urban Studies
SC Engineering; Urban Studies
GA 681BA
UT WOS:000284280000005
ER
PT J
AU Pema, E
Mehay, S
AF Pema, Elda
Mehay, Stephen
TI The role of job assignment and human capital endowments in explaining
gender differences in job performance and promotion
SO LABOUR ECONOMICS
LA English
DT Article
DE Gender gap in pay and promotions; Job assignment; Fast tracks; Internal
labor markets
ID ECONOMICS PROFESSION; LABOR-MARKET; PAY; SEX; EARNINGS; SALARIES;
LADDERS; GROWTH; FIRM
AB We test a job ladders theory of career progression within internal labor markets as developed by Lazear and Rosen (1990). The theory argues that gender promotion gaps are due to sorting of men and women into career tracks with different promotion opportunities based on ex ante quit probabilities. Analyzing US federal government employees using a dynamic unobserved panel data model, we find that job assignment is one of the strongest predictors of gender differences in promotion. We also find that women have to jump higher performance hurdles to promote across grades, but, within grades, their promotion probabilities are comparable to those of men. In this organization, women can be found in both fast-and slow-track jobs, based on their promotion history, suggesting that unobserved heterogeneity is revealed to the firm over the worker's career. Published by Elsevier B.V.
C1 [Pema, Elda; Mehay, Stephen] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RP Pema, E (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd, Monterey, CA 93943 USA.
EM epema@nps.edu
NR 32
TC 2
Z9 2
U1 2
U2 16
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-5371
J9 LABOUR ECON
JI Labour Econ.
PD DEC
PY 2010
VL 17
IS 6
BP 998
EP 1009
DI 10.1016/j.labeco.2010.02.006
PG 12
WC Economics
SC Business & Economics
GA 692DC
UT WOS:000285130700012
ER
PT J
AU Ray, RI
Lee, JS
Little, BJ
Gerke, TL
AF Ray, R. I.
Lee, J. S.
Little, B. J.
Gerke, T. L.
TI The anatomy of tubercles: A corrosion study in a fresh water estuary
SO MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
LA English
DT Article
ID BACTERIOGENIC IRON-OXIDES; DISTRIBUTION-SYSTEM; BIOMINERALIZATION;
PRECIPITATION; SCALES; GROWTH; PIPES
AB The structure and mineralogy of corrosion products formed on carbon steel coupons exposed in Duluth Superior Harbor (DSH, USA), were investigated and compared with corrosion products on similar substrata from other locations. Corrosion products in DSH form within a few months each year and are removed by ice scour and reform. The corrosion products formed in DSH are tubercles with an outer surface, an inner shell of magnetite, and a core of iron(III) oxyhydroxides, goethite, and lepidocrocite, in association with stalks produced by bacteria. In general, the tubercles formed in DSH are similar in morphology and mineralogy to corrosion products described for carbon steel and cast iron exposed to treated waters in decades-old drinking water and cooling water systems. DSH tubercles are unique in several structural details. DSH tubercles increase areal coverage of the substratum by consolidation of tubercles. Furthermore, the core material extends into the pit and is an exact replica of the pit profile.
C1 [Ray, R. I.; Lee, J. S.; Little, B. J.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Gerke, T. L.] Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA.
RP Little, BJ (reprint author), USN, Res Lab, Code 7303,Bldg 1009, Stennis Space Ctr, MS 39529 USA.
EM blittle@nrlssc.navy.mil
FU Office of Naval Research [0601153N]; U.S. Army Corps of Engineers,
Detroit District
FX This work was supported by the Office of Naval Research Program element
0601153N (6.1 Research Program) and the U.S. Army Corps of Engineers,
Detroit District. NRL Publication number NRL/JA/7330-10-0254. We thank
Timothy Phillips, Department of Geology, University of Cincinnati, for
drafting Fig. 8.
NR 26
TC 11
Z9 11
U1 1
U2 10
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0947-5117
J9 MATER CORROS
JI Mater. Corros.
PD DEC
PY 2010
VL 61
IS 12
BP 993
EP 999
DI 10.1002/maco.201005739
PG 7
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 701DH
UT WOS:000285794000003
ER
PT J
AU Mastro, MA
Hardy, AW
Boasso, A
Shearer, GM
Eddy, CR
Kub, FJ
AF Mastro, Michael A.
Hardy, Andrew W.
Boasso, Adriano
Shearer, Gene M.
Eddy, Charles R., Jr.
Kub, Francis J.
TI Non-toxic inhibition of HIV-1 replication with silver-copper
nanoparticles
SO MEDICINAL CHEMISTRY RESEARCH
LA English
DT Article
DE HIV; Nanoparticles; Silver; Copper
ID GP120; CELLS; SULFADIAZINE; APOPTOSIS; SIZE
AB Cu and Ag-Cu mixed alloy nanoparticles displayed significant inhibition to HIV-1 replication with limited toxicity to human cells at relatively low concentrations of metal. A previous study (Elechiguerra et al. in J Nanobiotechnol 3:6-16, 2005) suggested a size-specific Ag nanoparticle can be tailored to block or damage the glycoprotein (gp) 120/gp41 spike or, more specifically, the invariant epitope at the gp120 binding site. Two different protocols were employed to test whether nanoparticles block entry of HIV-1, and in both instances the nanoparticles acted at some point other than initial binding. This work shows that Ag, Cu, and Ag-Cu mixed alloy metals display a chemically dependent inactivation of the target virus.
C1 [Mastro, Michael A.; Eddy, Charles R., Jr.; Kub, Francis J.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Hardy, Andrew W.] Vitae Pharmaceut, Ft Washington, PA USA.
[Boasso, Adriano; Shearer, Gene M.] NCI, Expt Immunol Branch, NIH, Bethesda, MD 20910 USA.
RP Mastro, MA (reprint author), USN, Res Lab, Div Elect Sci & Technol, Code 6882,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM michael.mastro@nrl.navy.mil
OI Boasso, Adriano/0000-0001-9673-6319
FU Office of Naval Research
FX This research was supported by the Office of Naval Research.
NR 24
TC 5
Z9 5
U1 2
U2 6
PU BIRKHAUSER BOSTON INC
PI CAMBRIDGE
PA 675 MASSACHUSETTS AVE, CAMBRIDGE, MA 02139 USA
SN 1054-2523
J9 MED CHEM RES
JI Med. Chem. Res.
PD DEC
PY 2010
VL 19
IS 9
BP 1074
EP 1081
DI 10.1007/s00044-009-9253-1
PG 8
WC Chemistry, Medicinal
SC Pharmacology & Pharmacy
GA 682VV
UT WOS:000284432000006
ER
PT J
AU Robinson, GE
AF Robinson, Glenn E.
TI The Israeli-Palestinian Conflict: A People's War
SO MIDDLE EAST JOURNAL
LA English
DT Book Review
C1 [Robinson, Glenn E.] Naval Postgrad Sch, Monterey, CA USA.
RP Robinson, GE (reprint author), Naval Postgrad Sch, Monterey, CA USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU MIDDLE EAST INST
PI WASHINGTON
PA 1761 N ST NW, CIRCULATION DEPT, WASHINGTON, DC 20036-2882 USA
SN 0026-3141
J9 MIDDLE EAST J
JI Middle East J.
PD WIN
PY 2010
VL 64
IS 1
BP 134
EP 134
PG 1
WC Area Studies
SC Area Studies
GA 671EU
UT WOS:000283483900013
ER
PT J
AU Mclay, R
Spira, J
Reeves, D
AF McLay, Robert
Spira, James
Reeves, Dennis
TI Use of Computerized Neuropsychological Testing to Help Determine Fitness
to Return to Combat Operations When Taking Medication That Can Influence
Cognitive Function
SO MILITARY MEDICINE
LA English
DT Article
ID TRAUMATIC BRAIN-INJURY; MONITORING RECOVERY; ASSESSMENT METRICS;
PERFORMANCE; SOLDIERS; ANAM; IRAQ
AB Nowhere is it more important to maintain peek mental functioning than in a combat zone. Conditions ranging from pain to head injury to post-traumatic stress disorder can cause impairments in neuropsychological function and place service members at risk. Medications can sometimes help alleviate these problems, but also have the risk of further slowing cognitive function or impairing reaction time. Standard methods of neuropsychological testing are often not available in a combat environment. New technologies are being advanced that can allow portable, computerized neuropsychological testing to be performed at almost any location. We present a case that demonstrates how the use of such handheld technology can assist a military physician in assessing the influence of medication on reaction time and in determining if and when a service member is ready to return to combat.
C1 [McLay, Robert] USN, San Diego Med Ctr, Dept Mental Hlth, San Diego, CA 92134 USA.
[Spira, James] RTI Int, San Diego, CA 92130 USA.
[Reeves, Dennis] Def Ctr Excellence, Arlington, VA 22202 USA.
RP Mclay, R (reprint author), USN, San Diego Med Ctr, Dept Mental Hlth, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 15
TC 4
Z9 4
U1 0
U2 0
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD DEC
PY 2010
VL 175
IS 12
BP 945
EP 946
PG 2
WC Medicine, General & Internal
SC General & Internal Medicine
GA 691KO
UT WOS:000285078900004
PM 21265298
ER
PT J
AU Malvadkar, NA
Hancock, MJ
Sekeroglu, K
Dressick, WJ
Demirel, MC
AF Malvadkar, Niranjan A.
Hancock, Matthew J.
Sekeroglu, Koray
Dressick, Walter J.
Demirel, Melik C.
TI An engineered anisotropic nanofilm with unidirectional wetting
properties
SO NATURE MATERIALS
LA English
DT Article
ID CONTACT ANGLES; LIQUID-DROPS; RETENTION FORCES; SURFACES; ADHESION;
FILMS; DROPLETS; MOTION; ROUGH
AB Anisotropic textured surfaces allow water striders to walk on water, butterflies to shed water from their wings and plants to trap insects and pollen. Capturing these natural features in biomimetic surfaces is an active area of research. Here, we report an engineered nanofilm, composed of an array of poly(p-xylylene) nanorods, which demonstrates anisotropic wetting behaviour by means of a pin-release droplet ratchet mechanism. Droplet retention forces in the pin and release directions differ by up to 80 mu N, which is over ten times greater than the values reported for other engineered anisotropic surfaces. The nanofilm provides a microscale smooth surface on which to transport microlitre droplets, and is also relatively easy to synthesize by a bottom-up vapour-phase technique. An accompanying comprehensive model successfully describes the film's anisotropic wetting behaviour as a function of measurable film morphology parameters.
C1 [Malvadkar, Niranjan A.; Sekeroglu, Koray; Demirel, Melik C.] Penn State Univ, Dept Engn Sci, University Pk, PA 16802 USA.
[Malvadkar, Niranjan A.; Sekeroglu, Koray; Demirel, Melik C.] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA.
[Hancock, Matthew J.] Harvard Univ, Brigham & Womens Hosp, Dept Med, Sch Med, Boston, MA 02115 USA.
[Dressick, Walter J.] USN, Res Lab, Washington, DC 20375 USA.
RP Demirel, MC (reprint author), Penn State Univ, Dept Engn Sci, University Pk, PA 16802 USA.
EM mdemirel@engr.psu.edu
RI Hancock, Matthew/G-3859-2010; Malvadkar, Niranjan/E-8662-2010; Demirel,
Melik/E-4495-2010; Demirel, Melik/E-3775-2016
OI Hancock, Matthew/0000-0001-9820-3620; Malvadkar,
Niranjan/0000-0002-6763-8469;
FU Pennsylvania State University; Office of Naval Research under the Naval
Research Laboratory
FX We gratefully acknowledge financial support for this work from the
Pennsylvania State University and the Office of Naval Research under the
Naval Research Laboratory Core 6.1 Research Program and the Young
Investigator Program. We thank J. Bush for a number of useful
discussions.
NR 38
TC 176
Z9 181
U1 27
U2 191
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1476-1122
EI 1476-4660
J9 NAT MATER
JI Nat. Mater.
PD DEC
PY 2010
VL 9
IS 12
BP 1023
EP 1028
DI 10.1038/NMAT2864
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 684CR
UT WOS:000284525300024
PM 20935657
ER
PT J
AU Kim, H
Melinger, JS
Khachatrian, A
Charipar, NA
Auyeung, RCY
Pique, A
AF Kim, Heungsoo
Melinger, Joseph S.
Khachatrian, Ani
Charipar, Nicholas A.
Auyeung, Raymond C. Y.
Pique, Alberto
TI Fabrication of terahertz metamaterials by laser printing
SO OPTICS LETTERS
LA English
DT Article
ID SPLIT-RING RESONATORS; REFRACTION; INDEX
AB A laser printing technique was used to fabricate split-ring resonators (SRRs) on Si substrates for terahertz (THz) metamaterials and their resonance behavior evaluated by THz time-domain spectroscopy. The laser-printed Ag SRRs exhibited sharp edge definition and excellent thickness uniformity, which resulted in an electromagnetic response similar to that from identical Au SRR structures prepared by conventional photolithography. These results demonstrate that laser printing is a practical alternative to conventional photolithography for fabricating metamaterial structures at terahertz frequencies, since it allows their design to be easily modified and optimized. (C) 2010 Optical Society of America
C1 [Kim, Heungsoo; Melinger, Joseph S.; Khachatrian, Ani; Charipar, Nicholas A.; Auyeung, Raymond C. Y.; Pique, Alberto] USN, Res Lab, Washington, DC 20375 USA.
RP Kim, H (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM heungsoo.kim@nrl.navy.mil
FU Office of Naval Research (ONR)
FX This work was sponsored by the Office of Naval Research (ONR).
NR 16
TC 22
Z9 23
U1 3
U2 27
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
J9 OPT LETT
JI Opt. Lett.
PD DEC 1
PY 2010
VL 35
IS 23
BP 4039
EP 4041
DI 10.1364/OL.35.004039
PG 3
WC Optics
SC Optics
GA 688EI
UT WOS:000284832200061
PM 21124605
ER
PT J
AU Henning, A
Gaines, RJ
Carr, D
Lambert, E
AF Henning, Amy
Gaines, Robert J.
Carr, Donald
Lambert, Edward
TI Acute Compartment Syndrome of the Foot Following Fixation of a Pilon
Variant Ankle Fracture
SO ORTHOPEDICS
LA English
DT Article
AB Acute traumatic compartment syndrome of the foot is a serious potential complication after fractures, crush injuries, or reperfusion injury after vascular repair. Foot compartment syndrome in association with injuries to the ankle is rare. This article presents a case of acute compartment syndrome of the foot following open reduction and internal fixation of an ankle fracture.
A 16-year-old girl presented after sustaining a left ankle injury. Radiographs demonstrated a length-stable posterior and lateral malleolar ankle fracture. Initial treatment consisted of a bulky splint and crutches pending the improvement of her swelling. Over the course of a week, the soft tissue environment of the distal lower extremity improved, and the patient underwent open reduction and internal fixation of both her fibula and distal tibia through 2 approaches. Approximately 2 hours from the completion of surgery, the patient reported worsening pain over the medial aspect of her foot and into her calcaneus. Physical examination of the foot demonstrated a swollen and tense abductor hallicus and heel pad. Posterior tibial and dorsalis pedis pulses were palpable and her sensation was intact throughout her foot.
C1 [Henning, Amy; Gaines, Robert J.; Carr, Donald; Lambert, Edward] USN, Med Ctr Portsmouth, Bone & Joint Sports Med Inst, Portsmouth, VA 23708 USA.
[Carr, Donald; Lambert, Edward] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Gaines, RJ (reprint author), USN, Med Ctr Portsmouth, Bone & Joint Sports Med Inst, 27 Effingham St, Portsmouth, VA 23708 USA.
EM robert.gaines@med.navy.mil
NR 22
TC 0
Z9 0
U1 1
U2 1
PU SLACK INC
PI THOROFARE
PA 6900 GROVE RD, THOROFARE, NJ 08086 USA
SN 0147-7447
J9 ORTHOPEDICS
JI Orthopedics
PD DEC
PY 2010
VL 33
IS 12
DI 10.3928/01477447-20101021-33
PG 6
WC Orthopedics
SC Orthopedics
GA V24SP
UT WOS:000208430400001
ER
PT J
AU Donaldson, CJ
Hoffer, ME
Balough, BJ
Gottshall, KR
AF Donaldson, Chadwick J.
Hoffer, Michael E.
Balough, Ben J.
Gottshall, Kim R.
TI Prognostic assessments of medical therapy and vestibular testing in
post-traumatic migraine-associated dizziness patients
SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY
LA English
DT Article
ID BRAIN-INJURY; HISTORY; PROPHYLAXIS; DYSFUNCTION
AB OBJECTIVE: The aim of this study was to characterize our clinical population of patients suffering with post-traumatic migraine-associated dizziness (PTMAD) and determine any associations with medical interventions and vestibular testing metrics to help predict response to treatments.
STUDY DESIGN: Retrospective chart review.
SETTING: Tertiary referral center.
SUBJECTS AND METHODS: The electronic medical records of 83 patients presenting to a tertiary referral center who were given a diagnosis of PTMAD and who had been treated were retrospectively reviewed. General characteristics, clinical treatment, pre- and post-vestibular therapy testing metrics, and success and failure outcomes were assessed. Patients were assigned into responder and nonresponder groups related to their headaches and evaluated at two specific time points. Medication failures and vestibular test metrics were compared to identify and predict clinical outcomes.
RESULTS: Seventy-two of 82 patients (88%) were analyzed at two time points. Use of verapamil, topiramate, gabapentin, amitryptiline, and valproic acid showed no comparative treatment benefit in responders compared to nonresponders (P = 0.294). Findings associated with successful treatments include response to initial medication (P = 0.001), final dynamic gait index (DGI) scores (P = 0.029), final vertical dynamic visual acuity test (DVAT) scores (up, 0.007; down, 0.006), and both final and change in computerized dynamic posturography-sensory organization test (CDP-SOT) scores (P = 0.001, P = 0.032). The antipsychotic quetiapine was specifically associated with outcome failures (P = 0.003).
CONCLUSION: Specific prophylactic antimigraine medications were not associated with improved outcomes in PTMAD patients. Initial clinical responses and vestibular test metrics may guide physicians to predict successful outcomes. Copyright (C) 2010. Published by Mosby, Inc.
C1 [Donaldson, Chadwick J.; Hoffer, Michael E.; Balough, Ben J.; Gottshall, Kim R.] USN, Spatial Orientat Ctr, Dept Otolaryngol, San Diego Med Ctr, San Diego, CA 92134 USA.
RP Donaldson, CJ (reprint author), USN, Spatial Orientat Ctr, Dept Otolaryngol, San Diego Med Ctr, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 20
TC 6
Z9 6
U1 1
U2 4
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0194-5998
J9 OTOLARYNG HEAD NECK
JI Otolaryngol. Head Neck Surg.
PD DEC
PY 2010
VL 143
IS 6
BP 820
EP 825
DI 10.1016/j.otohns.2010.09.024
PG 6
WC Otorhinolaryngology; Surgery
SC Otorhinolaryngology; Surgery
GA 690BF
UT WOS:000284974400015
PM 21109084
ER
PT J
AU Carstairs, SD
Luk, JY
Tomaszewski, CA
Cantrell, FL
AF Carstairs, Shaun D.
Luk, Joyce Y.
Tomaszewski, Christian A.
Cantrell, F. Lee
TI Ingestion of Lantana camara Is Not Associated With Significant Effects
in Children
SO PEDIATRICS
LA English
DT Article
DE Lantana camara; poisoning; plant; toxicity
ID ANTIBACTERIAL ACTIVITY; TRADITIONAL MEDICINE
AB OBJECTIVE: We sought to identify characteristics of children with reported ingestion of Lantana camara.
METHODS: We reviewed the California Poison Control System database for all reported pediatric ingestions of L camara for the years 1997-2008. Data collected included age, gender, clinical effects, duration of effects, medical interventions, and outcomes.
RESULTS: There were a total of 641 patients; patient ages ranged from 1 to 16 years, with a mean of 2.5 years. Reported effects included vomiting (n = 30), abdominal pain (n = 8), agitation (n = 6), diarrhea (n = 6), throat/mouth irritation (n = 5), tachycardia (n = 4), drowsiness (n = 3), nausea (n = 2), and mydriasis (n = 1). There was no difference in frequency of symptoms between patients who ingested ripe (15.5% [95% confidence interval: 9.1%-21.8%]) versus unripe (6.0% [95% confidence interval: 0.9%-11.1%]) berries or between patients who ingested berries (10.5% [95% confidence interval: 7.3%-13.8%]) versus other plant parts (7.1% [95% confidence interval: 4.0%-10.3%]). Fifty-one patients (8%) were treated in a health care facility and 2 (0.3%) were admitted. No significant effects and no deaths were recorded.
CONCLUSIONS: Ingestion of L camara (including unripe berries) was not associated with significant toxicity; patients who ingested unripe berries did not exhibit more-frequent or more-severe symptoms than did patients who ingested ripe berries or other plant parts. Most patients displayed no or minimal symptoms. Children with asymptomatic ingestions and those with mild symptoms can be treated at home. Pediatrics 2010;126:e1585-e1588
C1 [Carstairs, Shaun D.] Univ Calif San Diego, Med Ctr, Div Med Toxicol, Dept Emergency Med,Sch Med, San Diego, CA 92103 USA.
[Luk, Joyce Y.] Univ Calif San Diego, Skaggs Sch Pharm & Pharmaceut Sci, San Diego, CA 92103 USA.
[Carstairs, Shaun D.] USN, Med Ctr, Dept Emergency Med, San Diego, CA 92152 USA.
[Cantrell, F. Lee] Calif Poison Control Syst, San Diego Div, San Diego, CA USA.
RP Carstairs, SD (reprint author), Univ Calif San Diego, Med Ctr, Div Med Toxicol, Dept Emergency Med,Sch Med, MC 8925,200 W Arbor Dr, San Diego, CA 92103 USA.
EM shaunc@yahoo.com
OI Carstairs, Shaun/0000-0003-4558-9704
NR 11
TC 2
Z9 2
U1 0
U2 2
PU AMER ACAD PEDIATRICS
PI ELK GROVE VILLAGE
PA 141 NORTH-WEST POINT BLVD,, ELK GROVE VILLAGE, IL 60007-1098 USA
SN 0031-4005
J9 PEDIATRICS
JI Pediatrics
PD DEC
PY 2010
VL 126
IS 6
BP E1585
EP E1588
DI 10.1542/peds.2010-1669
PG 4
WC Pediatrics
SC Pediatrics
GA 688EF
UT WOS:000284831900021
PM 21041281
ER
PT J
AU Crosby, F
Zhou, HM
Huynh, Q
AF Crosby, Frank
Zhou, Haomin
Huynh, Quyen
TI Total Variation Methods for Three Dimensional Lidar Image Denoising
SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING
LA English
DT Article
ID TOTAL VARIATION MINIMIZATION; RESTORATION
AB New imaging capabilities have given rise to higher dimensional image processing. This paper presents a generalization of total variation (Tv) based denoising model with a specific application to three-dimensional flash lidar imagery. The generalization uses a weighted norm, rather than the standard Euclidean measure, that accounts for sampling differences that may exist along different axes. We compare this new method against successive two-dimensional denoising and three-dimensional TV denoising. The results show that denoising with a weighted norm presents much better object recognition for multi-plane objects compared with both of the other methods. Further, it does not blur single plane objects beyond the result obtained with two-dimensional denoising.
C1 [Crosby, Frank; Huynh, Quyen] USN, Surface Warfare Ctr Panama City, Panama City, FL 32407 USA.
[Zhou, Haomin] Georgia Inst Technol, Sch Math, Atlanta, GA 30332 USA.
RP Crosby, F (reprint author), USN, Surface Warfare Ctr Panama City, Panama City, FL 32407 USA.
EM frank.crosby@navy.mil
NR 17
TC 1
Z9 1
U1 1
U2 2
PU AMER SOC PHOTOGRAMMETRY
PI BETHESDA
PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 USA
SN 0099-1112
J9 PHOTOGRAMM ENG REM S
JI Photogramm. Eng. Remote Sens.
PD DEC
PY 2010
VL 76
IS 12
BP 1365
EP 1371
PG 7
WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing;
Imaging Science & Photographic Technology
SC Physical Geography; Geology; Remote Sensing; Imaging Science &
Photographic Technology
GA 696NX
UT WOS:000285449200006
ER
PT J
AU Henderson, DR
AF Henderson, David R.
TI Seeds of Destruction
SO POLICY REVIEW
LA English
DT Book Review
C1 [Henderson, David R.] Hoover Inst War Revolut & Peace, Stanford, CA 94305 USA.
[Henderson, David R.] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA USA.
RP Henderson, DR (reprint author), Hoover Inst War Revolut & Peace, Stanford, CA 94305 USA.
NR 1
TC 0
Z9 0
U1 0
U2 1
PU HOOVER INST
PI STANFORD
PA STANFORD UNIV, STANFORD, CA 94305-601 USA
SN 0146-5945
J9 POLICY REV
JI Policy Rev.
PD DEC-JAN
PY 2010
IS 164
BP 101
EP 106
PG 6
WC Political Science
SC Government & Law
GA 691IX
UT WOS:000285074600007
ER
PT J
AU Zagar, TM
Higgins, KA
Miles, EF
Vujaskovic, Z
Dewhirst, MW
Clough, RW
Prosnitz, LR
Jones, EL
AF Zagar, Timothy M.
Higgins, Kristin A.
Miles, Edward F.
Vujaskovic, Zeljko
Dewhirst, Mark W.
Clough, Robert W.
Prosnitz, Leonard R.
Jones, Ellen L.
TI Durable palliation of breast cancer chest wall recurrence with radiation
therapy, hyperthermia, and chemotherapy
SO RADIOTHERAPY AND ONCOLOGY
LA English
DT Article
DE Breast cancer recurrence; Chest wall; Radiation; Chemotherapy;
Hyperthermia
ID RANDOMIZED-TRIAL; POSTOPERATIVE RADIOTHERAPY; SUPERFICIAL HYPERTHERMIA;
LOCOREGIONAL RECURRENCE; ADJUVANT CHEMOTHERAPY; LOCAL HYPERTHERMIA;
REIRRADIATION; MASTECTOMY; CARCINOMA; RESECTION
AB Background and purpose: Chest wall recurrences of breast cancer are a therapeutic challenge and durable local control is difficult to achieve. Our objective was to determine the local progression free survival (LPFS) and toxicity of thermochemoradiotherapy (ThChRT) for chest wall recurrence.
Methods: Twenty-seven patients received ThChRT for chest wall failure from 2/1995 to 6/2007 and make up this retrospective series. All received concurrent superficial hyperthermia twice weekly (median 8 sessions), chemotherapy (capecitabine in 21, vinorelbine in 2, and paclitaxel in 4), and radiation (median 45 Gy). Patients were followed up every 1.5-3 months and responses were graded with RECIST criteria and toxicities with the NCI CTC v4.0.
Results: Twenty-three (85%) patients were previously irradiated (median 60.4 Gy) and 22 (81%) patients received prior chemotherapy. Median follow-up was 11 months. Complete response (CR) was achieved in 16/20(80%) of patients with follow-up data, and 1 year LPFS was 76%. Overall survival was 23 months for patients with CR, and 5.4 months in patients achieving a partial response (PR) (p = 0.01). Twenty-two patients experienced acute grade 1/2 treatment related toxicities, primarily moist desquamation. Two patients experienced 3rd degree burns; all resolved with conservative measures.
Conclusions: ThChRT offers durable palliation and prolonged LPFS with tolerable acute toxicity, especially if CR is achieved. (C) 2010 Elsevier Ireland Ltd. All rights reserved. Radiotherapy and Oncology 97 (2010) 535-540
C1 [Zagar, Timothy M.; Higgins, Kristin A.; Vujaskovic, Zeljko; Dewhirst, Mark W.; Clough, Robert W.; Prosnitz, Leonard R.] Duke Univ, Med Ctr, Dept Radiat Oncol, Durham, NC 27710 USA.
[Miles, Edward F.] USN, Med Ctr, Dept Radiat Oncol, Portsmouth, VA USA.
[Jones, Ellen L.] Univ N Carolina, Canc Hosp, Dept Radiat Oncol, Chapel Hill, NC USA.
RP Vujaskovic, Z (reprint author), Duke Univ, Med Ctr, Dept Radiat Oncol, Box 3085, Durham, NC 27710 USA.
EM vujas001@mc.duke.edu
FU Varian Corporation; GlaxoSmithKline, Inc.; National Institutes of Health
FX E.L. Jones, M.D., Ph.D., on speaker's bureau and consultant, BSD
Medical; M.W. Dewhirst is a paid consultant and Chair of the Scientific
Advisory Board of Celsion, Inc., and is recipient of research contracts
from Varian Corporation and GlaxoSmithKline, Inc., M.W.D. and V.J. are
recipients of grants from the National Institutes of Health; all other
authors had none.
NR 39
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Z9 18
U1 1
U2 5
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0167-8140
J9 RADIOTHER ONCOL
JI Radiother. Oncol.
PD DEC
PY 2010
VL 97
IS 3
BP 535
EP 540
DI 10.1016/j.radonc.2010.10.020
PG 6
WC Oncology; Radiology, Nuclear Medicine & Medical Imaging
SC Oncology; Radiology, Nuclear Medicine & Medical Imaging
GA 693KE
UT WOS:000285222200032
PM 21074876
ER
PT J
AU Seelig, AD
Jacobson, IG
Smith, B
Hooper, TI
Boyko, EJ
Gackstetter, GD
Gehrman, P
Macera, CA
Smith, TC
AF Seelig, Amber D.
Jacobson, Isabel G.
Smith, Besa
Hooper, Tomoko I.
Boyko, Edward J.
Gackstetter, Gary D.
Gehrman, Philip
Macera, Carol A.
Smith, Tyler C.
CA Millennium Cohort Study Team
TI Sleep Patterns Before, During, and After Deployment to Iraq and
Afghanistan
SO SLEEP
LA English
DT Article
DE Sleep; deployment; Millennium Cohort; mental health; veterans
ID POSTTRAUMATIC-STRESS-DISORDER; MILITARY DEPLOYMENT; MILLENNIUM COHORT;
GENERAL-POPULATION; COMBAT DEPLOYMENT; DECISION-MAKING; YOUNG-ADULTS;
DURATION; DEPRIVATION; HEALTH
AB Study Objectives: To determine the associations between deployment in support of the wars in Iraq and Afghanistan and sleep quantity and quality.
Design: Longitudinal cohort study
Setting: The Millennium Cohort Study survey is administered via a secure website or US mail.
Participants: Data were from 41,225 Millennium Cohort members who completed baseline (2001-2003) and follow-up (2004-2006) surveys. Participants were placed into 1 of 3 exposure groups based on their deployment status at follow-up: nondeployed, survey completed during deployment, or survey completed postdeployment.
Interventions: N/A
Measurements and Results: Study outcomes were self-reported sleep duration and trouble sleeping, defined as having trouble falling asleep or staying asleep. Adjusted mean sleep duration was significantly shorter among those in the deployed and postdeployment groups compared with those who did not deploy. Additionally, male gender and greater stress were significantly associated with shorter sleep duration. Personnel who completed their survey during deployment or postdeployment were significantly more likely to have trouble sleeping than those who had not deployed. Lower self-reported general health, female gender, and reporting of mental health symptoms at baseline were also significantly associated with increased odds of trouble sleeping.
Conclusions: Deployment significantly influenced sleep quality and quantity in this population though effect size was mediated with statistical modeling that included mental health symptoms. Personnel reporting combat exposures or mental health symptoms had increased odds of trouble sleeping. These findings merit further research to increase understanding of temporal relationships between sleep and mental health outcomes occurring during and after deployment.
C1 [Seelig, Amber D.; Jacobson, Isabel G.; Smith, Besa; Smith, Tyler C.] USN, Hlth Res Ctr, Dept Deployment Hlth Res, San Diego, CA 92106 USA.
[Hooper, Tomoko I.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Boyko, Edward J.] Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Gackstetter, Gary D.] Analyt Serv Inc ANSER, Arlington, VA USA.
[Gehrman, Philip] Univ Penn, Dept Psychiat, Penn Sleep Ctr, Philadelphia, PA 19104 USA.
[Seelig, Amber D.; Macera, Carol A.] San Diego State Univ, Grad Sch Publ Hlth, San Diego, CA 92182 USA.
RP Seelig, AD (reprint author), USN, Hlth Res Ctr, Dept Deployment Hlth Res, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM amber.seelig@med.navy.mil
FU Henry M. Jackson Foundation
FX In addition to the authors, the Millennium Cohort Study Team includes
Melissa Bagnell, Lacy Farnell, Gia Gumbs, Nisara Granado, Jaime Horton,
Kelly Jones, Molly Kelton, Cynthia LeardMann, Travis Leleu, Gordon
Lynch, Jamie McGrew, Amanda Pietrucha, Teresa Powell, Donald Sandweiss,
Beverly Sheppard, Katherine Snell, Steven Spiegel, Kari Welch, Martin
White, James Whitmer, and Charlene Wong, from the Department of
Deployment Health Research, Naval Health Research Center, San Diego, CA;
Paul Amoroso, from the Madigan Army Medical Center, Tacoma, WA; Gregory
Gray, from the College of Public Health and Health Professions,
University of Florida, Gainesville, FL; James Riddle; Margaret Ryan from
the Naval Hospital Camp Pendleton, Camp Pendleton, CA; and Timothy Wells
from the US Air Force Research Laboratory, Wright-Patterson Air Force
Base, OH.; The authors thank the Millennium Cohort Study participants,
without whom these analyses would not be possible. We thank Scott
Seggerman from the Management Information Division, US Defense Manpower
Data Center, Monterey, CA; Michelle Stoia from the Naval Health Research
Center; and all the professionals from the US Army Medical Research and
Materiel Command, especially those from the Military Operational
Medicine Research Program, Fort Detrick, MD. We appreciate the support
of the Henry M. Jackson Foundation for the Advancement of Military
Medicine, Rockville, MD.
NR 41
TC 64
Z9 64
U1 0
U2 10
PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PD DEC 1
PY 2010
VL 33
IS 12
BP 1615
EP 1622
PG 8
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 686TZ
UT WOS:000284719900006
PM 21120123
ER
PT J
AU Miller, NL
Shattuck, LG
Matsangas, P
AF Miller, Nita Lewis
Shattuck, Lawrence G.
Matsangas, Panagiotis
TI Longitudinal Study of Sleep Patterns of United States Military Academy
Cadets
SO SLEEP
LA English
DT Article
DE Sleep deprivation; actigraphy; adolescent sleep patterns; college-age
students; military education
ID SELF-REPORTED SLEEP; CIRCADIAN-RHYTHMS; COLLEGE-STUDENTS;
MENSTRUAL-CYCLE; LONG SLEEPERS; DAYTIME SLEEPINESS; STRIKING CHANGES;
DOSE-RESPONSE; YOUNG-ADULTS; DEPRIVATION
AB Study Objectives: The study provided an opportunity to observe sleep patterns in a college-age population attending the United States Military Academy.
Design: This 4-year longitudinal study investigated sleep patterns of cadets. A stratified sample of 80 cadets had sleep patterns monitored using actigraphy for 8 months: one month in both fall and spring academic semesters over a 4-year period.
Setting: Data were collected at the United States Military Academy, West Point, NY.
Participants: Participants were members of the class of 2007 (n similar to 1300) ranging in age from 17 to 22 when entering USMA.
Measurements and Results:A sample of the class (n = 80) wore wrist activity monitors and completed activity logs for one month in fall and spring academic semesters for the 4-year period. On average over the 4 years, cadets slept < 5.5 h on school nights. Cadets napped extensively, perhaps in an attempt to compensate for chronic sleep debt. Cadets slept more during fall than spring semesters. Male and female cadet sleep patterns varied dramatically, with males consistently receiving less sleep than females (similar to 21 m for nighttime sleep and similar to 23 m for daily sleep).
Conclusions: Cadet sleep at USMA is related to academic year, semester, season, sex, school day or weekend, and day of the week. These students suffer from chronic sleep debt. Restrictions imposed by the military academy limit the generalizability of the findings to other college age populations.
C1 [Miller, Nita Lewis] USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
[Matsangas, Panagiotis] USN, Postgrad Sch, MOVES Inst, Monterey, CA 93943 USA.
RP Miller, NL (reprint author), USN, Postgrad Sch, Dept Operat Res, 1411 Cunningham Dr, Monterey, CA 93943 USA.
EM nlmiller@nps.edu
FU United States Military Academy, West Point, NY; U.S. Army
FX We would like to acknowledge the support provided by the senior
leadership of the United States Military Academy, West Point, NY.
Without their permission and unflagging encouragement, this study would
never have been completed. We received funding for the study from the
Program Executive Office Soldier (PEO-Soldier) of the U.S. Army. Dr.
Mary Carskadon and her colleagues in the Providence Sleep Research
Interest Group (PSRIG) offered invaluable insights in the design and
implementation of the study. Enthusiastic graduate students from the
Naval Postgraduate School assisted in various analyses. Lastly, we
acknowledge the selfless service of the Cadets of the Class of 2007 from
the United States Military Academy, many of whom are currently serving
their country both here and abroad.
NR 59
TC 11
Z9 11
U1 0
U2 2
PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
EI 1550-9109
J9 SLEEP
JI Sleep
PD DEC 1
PY 2010
VL 33
IS 12
BP 1623
EP 1631
PG 9
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 686TZ
UT WOS:000284719900007
PM 21120124
ER
PT J
AU Kujawski, E
AF Kujawski, Edouard
TI Unintended Consequences of Performance Specifications for the
Reliability of Military Weapon Systems
SO SYSTEMS ENGINEERING
LA English
DT Article
DE performance specifications; standards; reliability; systems engineering;
design; reliability predictions; Perry memorandum
AB The use of performance specifications became a key US Department of Defense (DoD) acquisition reform in the 1990s. Gone were the detailed military specifications for parts and materials selection, workmanship, derating, and fault tolerance. Maximum use was to be made of commercial specs. Reliability would be specified only in quantitative terms such as Mean-Time-To-Failure (MTTF) and/or the reliability R(t). However, there are significant differences between commercial and military weapon systems whereby performance specifications might bring in significantly greater mission risk. Reliability data from 1996 to 2000 might be an indicator of negative unintended consequences of the cancellation of military specifications. The acquisition of successful military systems requires a mix of performance and prescriptive reliability requirements that depend on the application, technology maturity, and complexity. (C) 2009 Wiley Periodicals, Inc. Syst Eng 13: 405-412, 2010
C1 USN, Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA.
RP Kujawski, E (reprint author), USN, Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA.
EM ekujawsk@nps.edu
NR 23
TC 2
Z9 2
U1 0
U2 4
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1098-1241
J9 SYSTEMS ENG
JI Syst. Eng.
PD WIN
PY 2010
VL 13
IS 4
BP 405
EP 412
DI 10.1002/sys.20152
PG 8
WC Engineering, Industrial; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 677RE
UT WOS:000284008700008
ER
PT J
AU de Figueiredo, MR
Muratore, C
Franz, R
Chromik, RR
Wahl, KJ
Voevodin, AA
O'Sullivan, M
Lechthaler, M
Mitterer, C
AF de Figueiredo, M. Rebelo
Muratore, C.
Franz, R.
Chromik, R. R.
Wahl, K. J.
Voevodin, A. A.
O'Sullivan, M.
Lechthaler, M.
Mitterer, C.
TI In Situ Studies of TiC1-x N (x) Hard Coating Tribology
SO TRIBOLOGY LETTERS
LA English
DT Article
DE TiCN; Low-friction; In situ tribometry; Tribofilm
ID DIAMOND-LIKE CARBON; NANOCOMPOSITE COATINGS; 3RD BODIES; FRICTION; WEAR;
BEHAVIOR; FILMS; TRIBOMETRY; ARC; MICROSTRUCTURE
AB TiC1-x N (x) hard coatings present time-dependent tribological behavior with an initial running-in period (500-2000 cycles) marked by an elevated friction coefficient, followed by > 10000 cycles with low-friction and wear at room temperature (RT) in ambient air. The mechanisms behind this behavior are not completely understood. Tribological tests performed at RT and at different relative humidity (RH) levels revealed that a minimum value between 15 and 25% RH is needed to trigger the low-friction regime at a sliding speed of 100 mm s(-1). By in situ observations of transfer film growth, it could be observed that third body material is formed during this running-in period by plowing of the coating and shearing of the removed material. The appearance and thickening of the transfer film marks the beginning of the steady-state low-friction regime where the velocity is accommodated by interfacial sliding. At this stage in the tribological test, the recorded Raman spectra indicated the presence of C-H bonds in the wear track. Use of in situ analytical tools during wear tests provided insights with respect to tribological phenomena that were not available by conventional, post-mortem analysis methods.
C1 [de Figueiredo, M. Rebelo; Franz, R.; Mitterer, C.] Univ Leoben, Dept Phys Met & Mat Testing, Christian Doppler Lab Adv Hard Coatings, A-8700 Leoben, Austria.
[Muratore, C.; Voevodin, A. A.] Mat & Mfg Directorate, Air Force Res Lab, Wright Patterson AFB, OH 45433 USA.
[Chromik, R. R.] McGill Univ, Dept Min & Mat Engn, Montreal, PQ, Canada.
[Wahl, K. J.] USN, Res Lab, Div Chem, Mol Interfaces & Tribol Sect, Washington, DC 20375 USA.
[O'Sullivan, M.] PLANSEE Composite Mat GmbH, D-86983 Lechbruck, Germany.
[Lechthaler, M.] OC Oerlikon Balzers AG, FL-9496 Balzers, Liechtenstein.
RP de Figueiredo, MR (reprint author), Univ Leoben, Dept Phys Met & Mat Testing, Christian Doppler Lab Adv Hard Coatings, Franz Josef Str 18, A-8700 Leoben, Austria.
EM marisa.figueiredo@unileoben.ac.at
RI Chromik, Richard/D-8566-2011; Rebelo de Figueiredo, Marisa/F-8671-2011;
Voevodin, Andrey/I-6684-2013; Mitterer, Christian/B-4491-2010; Franz,
Robert/G-5263-2010;
OI Mitterer, Christian/0000-0002-7768-7926; Franz,
Robert/0000-0003-4842-7276; Wahl, Kathryn/0000-0001-8163-6964; Rebelo de
Figueiredo, Marisa/0000-0003-2031-9345
FU Christian Doppler Research Association; Office of Naval Research
FX Financial support by the Christian Doppler Research Association is
highly acknowledged. K. J. Wahl was supported by the Office of Naval
Research.
NR 32
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U1 1
U2 14
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1023-8883
J9 TRIBOL LETT
JI Tribol. Lett.
PD DEC
PY 2010
VL 40
IS 3
BP 365
EP 373
DI 10.1007/s11249-010-9664-7
PG 9
WC Engineering, Chemical; Engineering, Mechanical
SC Engineering
GA 684ZK
UT WOS:000284593600010
ER
PT J
AU Smith, MP
Ponnusamy, L
Jiang, J
Abu Ayyash, L
Richards, AL
Apperson, CS
AF Smith, Michael P.
Ponnusamy, Loganathan
Jiang, Ju
Abu Ayyash, Luma
Richards, Allen L.
Apperson, Charles S.
TI Bacterial Pathogens in Ixodid Ticks from a Piedmont County in North
Carolina: Prevalence of Rickettsial Organisms
SO VECTOR-BORNE AND ZOONOTIC DISEASES
LA English
DT Article
DE Amblyomma americanum; American dog tick; Black-legged tick; Borrelia
lone star tick; Dermacentor variabilis; Ehrlichia chaffeensis; Ixodes
scapularis; Pathogen prevalence; Rickettsia; Rickettsia amblyommii
ID AMBLYOMMA-AMERICANUM ACARI; WHITE-TAILED DEER; SOUTHEASTERN
UNITED-STATES; POLYMERASE-CHAIN-REACTION; FEVER GROUP RICKETTSIAE; LONE
STAR TICK; REAL-TIME PCR; BORRELIA-LONESTARI; SPOTTED-FEVER;
LYME-DISEASE
AB In North Carolina, reported human cases of tick-borne illness, specifically Rocky Mountain spotted fever, have escalated over the past decade. To determine the relative abundance of vectors and to estimate the risk of acquiring a tick-borne illness in peri-residential landscapes, ticks were collected in Chatham County, a typical Piedmont county and, samples of the ticks were tested for infection with selected bacterial pathogens using real-time quantitative polymerase chain reaction assays. Ticks (n = 3746) were collected by flagging vegetation at 26 sites from April to July 2006. The predominant questing tick was Amblyomma americanum (98.5%) with significantly fewer Dermacentor variabilis (1.0%) and Ixodes scapularis (0.5%) collected. Spotted fever group (SFG) rickettsiae were detected in 68.2% of 1590 A. americanum with 56.4% of the molecular isolates identified as Rickettsia amblyommii, an informally named member of the SFG rickettsiae. Comparatively, smaller numbers of A. americanum contained Ehrlichia chaffeensis (1.8%) and Borrelia lonestari (0.4%). Of 15 I. scapularis nymphs tested, 6 (40%) were positive for Borrelia burgdorferi sensu lato. Seven (19.4%) of 36 adult D. variabilis tested positive for Rickettsia montanensis, 4 (11.1%) were positive for R. amblyommii, and 5 (13.9%) were infected with unidentified species of SFG rickettsiae. The tick population in Chatham County contains a diverse array of microbes, some of which are known or potential pathogens. Highest attack rates would be expected from A. americanum ticks, and highest potential risk of infection with a tick-transmitted agent would be to rickettsial organisms, particularly R. amblyommii. Accordingly, longitudinal eco-epidemiology investigations are needed to determine the public health importance of A. americanum infected with rickettsial organisms.
C1 [Jiang, Ju; Richards, Allen L.] USN, Viral & Rickettsial Dis Dept, Med Res Ctr, Silver Spring, MD 20910 USA.
[Smith, Michael P.; Ponnusamy, Loganathan; Abu Ayyash, Luma; Apperson, Charles S.] N Carolina State Univ, Dept Entomol, Raleigh, NC 27695 USA.
RP Richards, AL (reprint author), USN, Viral & Rickettsial Dis Dept, Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM allen.richards@med.navy.mil; charles_apperson@ncsu.edu
RI Valle, Ruben/A-7512-2013
FU DoD GEIS program [847705.82000.25GB .A0074]
FX We thank Drs. Kevin Donohue and Sayed Khalil for their ideas and
assistance in developing reagents for extraction of genomic DNA from
ticks. This work was supported in part by the DoD GEIS program work unit
# 847705.82000.25GB .A0074.
NR 69
TC 40
Z9 41
U1 3
U2 18
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-3667
J9 VECTOR-BORNE ZOONOT
JI Vector-Borne Zoonotic Dis.
PD DEC
PY 2010
VL 10
IS 10
BP 939
EP 952
DI 10.1089/vbz.2009.0178
PG 14
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 689TL
UT WOS:000284952100001
PM 20455778
ER
PT J
AU Calvo, DC
Rudd, KE
Zampolli, M
Sanders, WM
Bibee, LD
AF Calvo, D. C.
Rudd, K. E.
Zampolli, M.
Sanders, W. M.
Bibee, L. D.
TI Simulation of acoustic scattering from an aluminum cylinder near a rough
interface using the elastodynamic finite integration technique
SO WAVE MOTION
LA English
DT Article
DE Scattering; EFIT; Reverberation; Ocean acoustics; Elastodynamics;
Roughness
ID WAVE-PROPAGATION; SOUND-SCATTERING; BOTTOM; MEDIA; GEOMETRIES; SURFACE;
OBJECTS
AB We present calculations of acoustic scattering from an aluminum cylinder near a rough interface computed using the elastodynamic finite integration technique (EFIT) a time-domain numerical method useful for pulse propagation in inhomogeneous fluid-elastic environments These calculations are relevant to the modeling of underwater acoustic scattering by objects near the ocean seafloor in the low-frequency structural-acoustics regime where penetrability of both the object and seafloor are important The generality of the EFIT allows for the inclusion of stratified seafloors with rough interfaces and volume inhomogeneities such as shells or rocks Non-reflecting computational boundaries are implemented using a recursive convolution time-domain form of the perfectly matched layer (PML) The scheme and examples discussed are in two space dimensions for computational simplicity The explicitness of the scheme (unknowns only depend on spatially local values at previous time steps) however allows for straightforward parallelization by decomposing the domain which is efficient for three-dimensional problems We first examine the relationship between source geometry and bottom penetration for grazing angles below the critical angle for a fluid-fluid interface similar to a water-sand interface in the ocean Ensemble averaged bottom penetration is then computed for a statistically rough power-law interface and comparison is made with the flat-interface case The aluminum cylinder is then introduced at variable height relative to the fluid-fluid interface and backscattering is computed for both sub and supercritical incidence angles Separation of interface reverberation and cylinder echo contributions to the total backscatter is made to demonstrate the importance of roughness The EFIT is demonstrated to effectively capture the enhancement of bottom penetration and object backscatter for subcritical incidence angles for a buried object under a rough interface We also consider an example of scattering in the presence of a rough interface and small randomly distributed subsurface inhomogeneities to demonstrate how different environmental factors can influence an echo from an object Published by Elsevier B V
C1 [Calvo, D. C.; Rudd, K. E.] USN, Res Lab, Washington, DC 20375 USA.
[Zampolli, M.] TNO Def Secur & Safety, The Hague, Netherlands.
[Sanders, W. M.; Bibee, L. D.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Calvo, DC (reprint author), USN, Res Lab, Washington, DC 20375 USA.
FU Office of Naval Research
FX Work sponsored by the Office of Naval Research
NR 26
TC 8
Z9 8
U1 2
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0165-2125
J9 WAVE MOTION
JI Wave Motion
PD DEC
PY 2010
VL 47
IS 8
BP 616
EP 634
DI 10.1016/j.wavemoti.2010.05.002
PG 19
WC Acoustics; Mechanics; Physics, Multidisciplinary
SC Acoustics; Mechanics; Physics
GA 689ZX
UT WOS:000284970800011
ER
PT J
AU Kim, YJ
Flatau, M
AF Kim, Young-Joon
Flatau, Maria
TI Hindcasting the January 2009 Arctic Sudden Stratospheric Warming and Its
Influence on the Arctic Oscillation with Unified Parameterization of
Orographic Drag in NOGAPS. Part I: Extended-Range Stand-Alone Forecast
SO WEATHER AND FORECASTING
LA English
DT Article
ID VERTICAL COORDINATE; NUMERICAL FORECASTS; WEATHER REGIMES; MODEL;
TROPOSPHERE; EVENTS; WINTER; FLOW; CIRCULATION; IMPROVEMENT
AB A very strong Arctic major sudden stratospheric warming (SSW) event occurred in late January 2009. The stratospheric temperature climbed abruptly and the zonal winds reversed direction, completely splitting the polar stratospheric vortex. A hindcast of this event is attempted by using the Navy Operational Global Atmospheric Prediction System (NOGAPS), which includes the full stratosphere with its top at around 65 km. As Part I of this study, extended-range (3 week) forecast experiments are performed using NOGAPS without the aid of data assimilation. A unified parameterization of orographic drag is designed by combining two parameterization schemes; one by Webster et al., and the other by Kim and Arakawa and Kim and Doyle. With the new unified orographic drag scheme implemented, NOGAPS is able to reproduce the salient features of this Arctic SSW event owing to enhanced planetary wave activity induced by more comprehensive subgrid-scale orographic drag processes. The impact of the SSW on the tropospheric circulation is also investigated in view of the Arctic Oscillation (AO) index, which calculated using 1000-hPa geopotential height. The NOGAPS with upgraded orographic drag physics better simulates the trend of the AO index as verified by the Met Office analysis, demonstrating its improved stratosphere-troposphere coupling. It is argued that the new model is more suitable for forecasting SSW events in the future and can serve as a tool for studying various stratospheric phenomena.
C1 [Kim, Young-Joon; Flatau, Maria] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
RP Kim, YJ (reprint author), USN, Res Lab, Marine Meteorol Div, Stop 2, Monterey, CA 93943 USA.
EM yj.kim@nrlmry.navy.mil
FU Office of Naval Research [0601153N]
FX The authors appreciate the support by the Office of Naval Research under
ONR Program Element 0601153N. They thank T. Hogan for processing the
initial and boundary conditions for the runs, T. Whitcomb for
transferring and processing the UKMO analysis data, J. Cummings for
providing and explaining the SST and sea-ice data, and M. Peng for
comments. They thank D. Boyd at UKMO for retrieving the UKMO data from
the archive. They also acknowledge the constructive comments from the
anonymous reviewers that helped improve the manuscript. The computing
time was provided in large part by the Navy DSRC (DoD Super-computing
Resource Center).
NR 35
TC 14
Z9 15
U1 0
U2 9
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0882-8156
J9 WEATHER FORECAST
JI Weather Forecast.
PD DEC
PY 2010
VL 25
IS 6
BP 1628
EP 1644
DI 10.1175/2010WAF2222421.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 702AS
UT WOS:000285867000003
ER
PT J
AU Kim, YC
Best, RB
Mittal, J
AF Kim, Young C.
Best, Robert B.
Mittal, Jeetain
TI Macromolecular crowding effects on protein-protein binding affinity and
specificity
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID PHYSIOLOGICAL CONSEQUENCES; SICKLE HEMOGLOBIN; CONFINEMENT; STABILITY;
DYNAMICS; COMPLEX; RATES; THERMODYNAMICS; ASSOCIATION; SIMULATIONS
AB Macromolecular crowding in cells is recognized to have a significant impact on biological function, yet quantitative models for its effects are relatively undeveloped. The influence of crowding on protein-protein interactions is of particular interest, since these mediate many processes in the cell, including the self-assembly of larger complexes, recognition, and signaling. We use a residue-level coarse-grained model to investigate the effects of macromolecular crowding on the assembly of protein-protein complexes. Interactions between the proteins are treated using a fully transferable energy function, and interactions of protein residues with the spherical crowders are repulsive. We show that the binding free energy for two protein complexes, ubiquitin/UIM1 and cytochrome c/cytochrome c peroxidase, decreases modestly as the concentration of crowding agents increases. To obtain a quantitative description of the stabilizing effect, we map the aspherical individual proteins and protein complexes onto spheres whose radii are calculated from the crowder-excluded protein volumes. With this correspondence, we find that the change in the binding free energy due to crowding can be quantitatively described by the scaled particle theory model without any fitting parameters. The effects of a mixture of different-size crowders-as would be found in a real cell-are predicted by the same model with an additivity ansatz. We also obtain the remarkable result that crowding increases the fraction of specific complexes at the expense of nonspecific transient encounter complexes in a crowded environment. This result, due to the greater excluded volume of the nonspecific complexes, demonstrates that macromolecular crowding can have subtle functional effects beyond the relative stability of bound and unbound complexes. (C) 2010 American Institute of Physics. [doi:10.1063/1.3516589]
C1 [Kim, Young C.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Best, Robert B.] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England.
[Mittal, Jeetain] Lehigh Univ, Dept Chem Engn, Bethlehem, PA 18015 USA.
RP Kim, YC (reprint author), USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM yckim@dave.nrl.navy.mil; rbb24@cam.ac.uk; jeetain@lehigh.edu
RI Best, Robert/H-7588-2016
OI Best, Robert/0000-0002-7893-3543
FU Royal Society University
FX R.B.B. is supported by a Royal Society University Research Fellowship.
NR 40
TC 30
Z9 30
U1 2
U2 39
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 NOV 28
PY 2010
VL 133
IS 20
AR 205101
DI 10.1063/1.3516589
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 690LB
UT WOS:000285005200020
PM 21133453
ER
PT J
AU Crum-Cianflone, NF
Hullsiek, KH
Ganesan, A
Weintrob, A
Okulicz, JF
Agan, BK
AF Crum-Cianflone, Nancy F.
Hullsiek, Katherine Huppler
Ganesan, Anuradha
Weintrob, Amy
Okulicz, Jason F.
Agan, Brian K.
CA Infectious Dis Clinical Res
TI Is Kaposi's sarcoma occurring at higher CD4 cell counts over the course
of the HIV epidemic?
SO AIDS
LA English
DT Article
ID ACTIVE ANTIRETROVIRAL THERAPY; UNITED-STATES; INFECTED PERSONS; IMPACT;
AIDS; SEROCONVERSION; INDIVIDUALS; FEATURES; CANCERS; TRENDS
C1 [Crum-Cianflone, Nancy F.] USN, San Diego Med Ctr, Clin Invest Dept KCA, Infect Dis Clin, San Diego, CA 92134 USA.
[Crum-Cianflone, Nancy F.; Hullsiek, Katherine Huppler; Ganesan, Anuradha; Weintrob, Amy; Okulicz, Jason F.; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Hullsiek, Katherine Huppler] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Infect Dis Clin, Bethesda, MD USA.
[Weintrob, Amy] Walter Reed Army Med Ctr, Infect Dis Clin, Washington, DC 20307 USA.
[Okulicz, Jason F.] San Antonio Mil Med Ctr, Infect Dis Serv, San Antonio, TX USA.
RP Crum-Cianflone, NF (reprint author), USN, San Diego Med Ctr, Clin Invest Dept KCA, Infect Dis Clin, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil
OI Agan, Brian/0000-0002-5114-1669
FU National Institute of Allergy and Infectious Diseases, National
Institutes of Health (NIH) [Y1-AI-5072]; Department of Defense (DoD)
[IDCRP-000-04]
FX Support for this work (IDCRP-000-04) was provided by the Infectious
Disease Clinical Research Program (IDCRP), a Department of Defense (DoD)
program executed through the Uniformed Services University of the Health
Sciences. This project has been funded in whole, or in part, with
federal funds from the National Institute of Allergy and Infectious
Diseases, National Institutes of Health (NIH), under Inter-Agency
Agreement Y1-AI-5072. The content of this publication is the sole
responsibility of the authors and does not necessarily reflect the views
or policies of the NIH or the Department of Health and Human Services,
the DoD, the Departments of the Army, Navy or Air Force, nor the US
Government. Mention of trade names, commercial products, or
organizations does not imply endorsement by the US Government. The
authors acknowledge that the research protocol ('Incidence and Risk
Factors for AIDS-Defining and Non-AIDS-Defining Cancers in an
HIV-Infected Cohort') received applicable Institutional Board review and
approval.
NR 19
TC 7
Z9 8
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0269-9370
J9 AIDS
JI Aids
PD NOV 27
PY 2010
VL 24
IS 18
BP 2881
EP 2883
DI 10.1097/QAD.0b013e32833f9fb8
PG 3
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA 678EU
UT WOS:000284057300017
PM 20827160
ER
PT J
AU Mazeina, L
Bermudez, VM
Perkins, FK
Arnold, SP
Prokes, SM
AF Mazeina, Lena
Bermudez, Victor M.
Perkins, F. Keith
Arnold, Stephen P.
Prokes, S. M.
TI Interaction of functionalized Ga2O3 NW-based room temperature gas
sensors with different hydrocarbons
SO SENSORS AND ACTUATORS B-CHEMICAL
LA English
DT Article
DE Nanowires; Functionalization; Capacitance-based sensors; Ga2O3
ID ABSORPTION INFRARED-SPECTROSCOPY; PYRUVIC-ACID; VIBRATIONAL-SPECTRA;
AQUEOUS-SOLUTIONS; CARBOXYLIC-ACIDS; FT-IR; ADSORPTION; OXIDE;
BETA-GA2O3; SURFACES
AB Ga2O3 nanowires (NWs) incorporated into capacitance-based room temperature gas sensors were functionalized with acetic and pyruvic acid (AC and PA, respectively) with the goal of achieving higher selectivity toward different groups of hydrocarbons. Fourier transform infrared spectroscopy (FTIR) was used to determine the geometry of the resulting adsorbate complexes. A bridge-like geometry was observed for adsorbed AC and a mixture of different geometries for PA, some of which had hydrogen-bonded OH groups. In addition, FTIR studies showed evidence of the enolic form of PA adsorbed on the surface. The AC-functionalized NWs showed a significant decrease in response to such common analytes as acetone and nitromethane as well as to triethylamine (TEA). In the case of PA-functionalized NWs, no response was observed to nitromethane, however, the response to TEA increased one order of magnitude compared to the bare NWs. FTIR spectroscopy was used to obtain more insight into the mechanism of interaction of AC- and PA-functionalized NWs with these analytes. This work demonstrates the use of a bifunctional molecule (PA) to modify the response of an oxide sensor in a way that a monofunctional molecule (AC) cannot. A significant result of this work is that the functionalization chemistry does not presume the existence of OH groups on the initial oxide surface. Published by Elsevier B.V.
C1 [Mazeina, Lena; Bermudez, Victor M.; Perkins, F. Keith; Arnold, Stephen P.; Prokes, S. M.] USN, Res Lab, Washington, DC 20375 USA.
RP Prokes, SM (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM sharka.prokes@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. LM thanks
National Research Council for the administrative support. Art Snow is
thanked for providing distilled triethylamine.
NR 36
TC 14
Z9 14
U1 2
U2 35
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-4005
J9 SENSOR ACTUAT B-CHEM
JI Sens. Actuator B-Chem.
PD NOV 26
PY 2010
VL 151
IS 1
BP 114
EP 120
DI 10.1016/j.snb.2010.09.038
PG 7
WC Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
SC Chemistry; Electrochemistry; Instruments & Instrumentation
GA 687QN
UT WOS:000284793100017
ER
PT J
AU Elam, MB
Lovato, LC
Byington, RP
Bonds, D
Leiter, L
Crouse, JR
Linz, P
Marcovina, S
O'Connor, PJ
Ginsberg, HN
AF Elam, Marshall B.
Lovato, Laura C.
Byington, Robert P.
Bonds, Denise
Leiter, Lawrence
Crouse, John R.
Linz, Peter
Marcovina, Santica
O'Connor, Patrick J.
Ginsberg, Henry N.
CA ACCORD Study Grp
TI Hypertriglyceridemia and Low HDL-C Predicts Fenofibrate Response in The
ACCORD-Lipid Trial
SO CIRCULATION
LA English
DT Meeting Abstract
DE Type 2 Diabetes; Cholesterol lowering drugs; Cardiovascular
C1 Memphis Vet Affairs Med Cntr, Memphis, TN USA.
Wake Forest Univ, Sch Med, Winston Salem, NC 27109 USA.
NHLBI, Bethesda, MD 20892 USA.
St Michaels Hlth Cntr, Toronto, ON, Canada.
USN, Med Cntr, Div Cardiol, San Diego, CA 92152 USA.
Univ Washington, Seattle, WA 98195 USA.
Hlth Partners Rsch Fdn, Minneapolis, MN USA.
Columbia Univ, Coll Phys & Surg, New York, NY USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0009-7322
J9 CIRCULATION
JI Circulation
PD NOV 23
PY 2010
VL 122
IS 21
SU S
MA A19724
PG 2
WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease
SC Cardiovascular System & Cardiology
GA V21UD
UT WOS:000208231603243
ER
PT J
AU Hartley, DJ
Janssens, RVF
Riedinger, LL
Riley, MA
Wang, X
Aguilar, A
Carpenter, MP
Chiara, CJ
Chowdhury, P
Darby, IG
Garg, U
Ijaz, QA
Kondev, FG
Lakshmi, S
Lauritsen, T
Ma, WC
McCutchan, EA
Mukhopadhyay, S
Seyfried, EP
Shirwadkar, U
Stefanescu, I
Tandel, SK
Vanhoy, JR
Zhu, S
AF Hartley, D. J.
Janssens, R. V. F.
Riedinger, L. L.
Riley, M. A.
Wang, X.
Aguilar, A.
Carpenter, M. P.
Chiara, C. J.
Chowdhury, P.
Darby, I. G.
Garg, U.
Ijaz, Q. A.
Kondev, F. G.
Lakshmi, S.
Lauritsen, T.
Ma, W. C.
McCutchan, E. A.
Mukhopadhyay, S.
Seyfried, E. P.
Shirwadkar, U.
Stefanescu, I.
Tandel, S. K.
Vanhoy, J. R.
Zhu, S.
TI Band crossings in Ta-166
SO PHYSICAL REVIEW C
LA English
DT Article
ID HIGH-SPIN STATES; COINCIDENCE DATA; NUCLEI
AB High-spin states in the odd-odd nucleus Ta-166 are investigated through the 5n channel of the V-51 + Sn-120 reaction. Four new bands are observed and linked into the previous level scheme. Configurations for the bands are proposed, based on measured alignments and B(M1)/B(E2) transition strength ratios.
C1 [Hartley, D. J.; Seyfried, E. P.; Vanhoy, J. R.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Janssens, R. V. F.; Carpenter, M. P.; Chiara, C. J.; Lauritsen, T.; McCutchan, E. A.; Stefanescu, I.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Riedinger, L. L.; Darby, I. G.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Riley, M. A.; Wang, X.; Aguilar, A.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Chiara, C. J.; Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Chiara, C. J.; Stefanescu, I.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Chowdhury, P.; Lakshmi, S.; Shirwadkar, U.; Tandel, S. K.] Univ Massachusetts Lowell, Dept Phys, Lowell, MA 01854 USA.
[Garg, U.; Mukhopadhyay, S.] Univ Notre Dame, Dept Phys, South Bend, IN 46556 USA.
[Ijaz, Q. A.; Ma, W. C.] Mississippi State Univ, Dept Phys, Mississippi State, MS 39762 USA.
RP Hartley, DJ (reprint author), USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RI Soundara Pandian, Lakshmi/C-8107-2013; Carpenter, Michael/E-4287-2015
OI Soundara Pandian, Lakshmi/0000-0003-3099-1039; Carpenter,
Michael/0000-0002-3237-5734
FU National Science Foundation [PHY-0854815, PHY-0754674, PHY07-58100]; US
Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357,
DE-FG02-94ER40848, DE-FG02-96ER40983]
FX The authors thank the ANL operations staff at Gammasphere and gratefully
acknowledge the efforts of J. P. Greene for target preparation. We thank
D. C. Radford and H. Q. Jin for their software support. This work is
funded by the National Science Foundation under Grants No. PHY-0854815
(USNA), No. PHY-0754674 (FSU), and No. PHY07-58100 (ND), as well as by
the US Department of Energy, Office of Nuclear Physics, under Contracts
No. DE-AC02-06CH11357 (ANL), No. DE-FG02-94ER40848 (UML), and No.
DE-FG02-96ER40983 (UT).
NR 17
TC 4
Z9 4
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD NOV 23
PY 2010
VL 82
IS 5
AR 057302
DI 10.1103/PhysRevC.82.057302
PG 4
WC Physics, Nuclear
SC Physics
GA 713JA
UT WOS:000286733100005
ER
PT J
AU Shabaev, A
Dutton, Z
Kennedy, TA
Efros, AL
AF Shabaev, A.
Dutton, Z.
Kennedy, T. A.
Efros, Al L.
TI Slow-light propagation using mode locking of spin precession in quantum
dots
SO PHYSICAL REVIEW A
LA English
DT Article
ID ELECTROMAGNETICALLY INDUCED TRANSPARENCY; ELECTRON-SPIN; GROUP-VELOCITY;
ATOMIC VAPOR; STORAGE; PULSES; OPTICS; GAS
AB We propose using mode locking to enable coherent nonlinear optical effects in inhomogenously broadened spin ensembles. We carry out detailed calculations for quantum dot systems in which increased spin coherence via mode locking has been recently observed [A. Greilich et al., Science 313, 341 (2006); 317, 1896 (2007)]. We show how, in the presence of spin locking, a strong pulse-matching effect occurs, providing a powerful tool for high-bandwidth linear optical processing. We then go on to study "slow light" in this system and show that high-bandwidth pulses can be controllably delayed by a time comparable to the pulse width.
C1 [Shabaev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Dutton, Z.] Raytheon BBN Technol, Cambridge, MA 02138 USA.
[Dutton, Z.; Kennedy, T. A.; Efros, Al L.] USN, Res Lab, Washington, DC 20375 USA.
RP Shabaev, A (reprint author), George Mason Univ, Fairfax, VA 22030 USA.
FU ONR; NIST [70NANB7H6138 Am001]
FX The authors acknowledge financial support of ONR and NIST 70NANB7H6138
Am001.
NR 31
TC 1
Z9 1
U1 1
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
J9 PHYS REV A
JI Phys. Rev. A
PD NOV 22
PY 2010
VL 82
IS 5
AR 053823
DI 10.1103/PhysRevA.82.053823
PG 5
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 683GL
UT WOS:000284460400009
ER
PT J
AU Razzaque, S
AF Razzaque, Soebur
TI A LEPTONIC-HADRONIC MODEL FOR THE AFTERGLOW OF GAMMA-RAY BURST 090510
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma-ray burst: individual (GRB 090510); relativistic processes; shock
waves
ID EXTRAGALACTIC BACKGROUND LIGHT; HIGH-ENERGY EMISSION; GRB 080916C;
COMPONENTS; MISSION; CURVES; SWIFT; JETS
AB We model multiwavelength afterglow data from the short gamma-ray burst (GRB) 090510 using a combined leptonic-hadronic model of synchrotron radiation from an adiabatic blast wave. High-energy, greater than or similar to 100 MeV, emission in our model is dominated by proton-synchrotron radiation, while electron-synchrotron radiation dominates in the X-ray and ultraviolet wavelengths. The collimation-corrected GRB energy, depending on the jet-break time, in this model could be as low as 3 x 1051 erg but two orders of magnitude larger than the absolute gamma-ray energy. We also calculated the opacities for electron-positron pair production by gamma-rays and found that TeV gamma-rays from proton-synchrotron radiation can escape the blast wave at early time, and their detection can provide evidence of a hadronic emission component dominating at high energies.
C1 [Razzaque, Soebur] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM srazzaque@ssd5.nrl.navy.mil
FU Office of Naval Research; NASA
FX I thank the Fermi-LAT, GBM, and Swift team members, especially M. De
Pasquale, C. D. Dermer, J. D. Finke, N. Gehrels, S. Guiriec, V. Pelassa,
and F. Piron, for providing data and useful comments. This work is
supported by the Office of Naval Research and NASA Fermi Cycle 2 Guest
Investigator Program.
NR 39
TC 18
Z9 18
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 20
PY 2010
VL 724
IS 1
BP L109
EP L112
DI 10.1088/2041-8205/724/1/L109
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679HM
UT WOS:000284152500023
ER
PT J
AU McSwain, MV
Grundstrom, ED
Gies, DR
Ray, PS
AF McSwain, M. Virginia
Grundstrom, Erika D.
Gies, Douglas R.
Ray, Paul S.
TI H alpha EMISSION VARIABILITY IN THE gamma-RAY BINARY LS I+61 303
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE accretion, accretion disks; stars: emission-line, Be; stars: individual
(LS I+61 303); stars: winds, outflows
ID X-RAY; MICROQUASAR LS-I+61-303; RADIO OBSERVATIONS; NEUTRON-STAR;
LSI+61-DEGREES-303; I+61-DEGREES-303; LS-I-+61-303
AB LS I +61 303 is an exceptionally rare example of a high-mass X-ray binary that also exhibits McV-TcV emission, making it one of only a handful of "gamma-ray binaries." Here we present H alpha spectra that show strong variability during the 26.5 day orbital period and over decadal timescales. We detect evidence of a spiral density wave in the Be circumstellar disk over part of the orbit. The H alpha line profile also exhibits a dramatic emission burst shortly before apastron, observed as a redshifted shoulder in the line profile, as the compact source moves almost directly away from the observer. We investigate several possible origins for this red shoulder, including an accretion disk, mass-transfer stream, and a compact pulsar wind nebula that forms via a shock between the Be star's wind and the relativistic pulsar wind.
C1 [McSwain, M. Virginia] Lehigh Univ, Dept Phys, Bethlehem, PA 18015 USA.
[Grundstrom, Erika D.] Vanderbilt Univ, Dept Phys & Astron, Stevens Ctr 6301, Nashville, TN 37235 USA.
[Gies, Douglas R.] Georgia State Univ, Dept Phys & Astron, Ctr High Angular Resolut Astron, Atlanta, GA 30303 USA.
[Ray, Paul S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP McSwain, MV (reprint author), Lehigh Univ, Dept Phys, 16 Mem Dr E, Bethlehem, PA 18015 USA.
EM mcswain@lehigh.edu; erika.grundstrom@vanderbilt.edu; gies@chara.gsu.edu;
paul.ray@nrl.navy.mil
OI Grundstrom, Erika/0000-0002-5130-0260
FU NASA [NNX08AV70G, NNG08E1671, NNX09AT67G]; Lehigh University; National
Science Foundation [AST-0506573, AST-0606861]
FX We are grateful to the University of Wyoming, especially Chip Kobulnicky
and Dan Kiminki, for providing telescope time and observing support at
WIRO. We also thank Di Harmer and the staff at KPNO for their hard work
to schedule and support the Coude Feed observations. Christina Aragona,
Tabetha Boyajian, Amber Marsh, and Rachael Roettenbacher helped collect
the spectra presented here and should be cheered for their heroic
efforts. We also appreciate helpful conversations with George McCluskey
regarding these results. This work is supported by NASA DPR numbers
NNX08AV70G, NNG08E1671, and NNX09AT67G. M.V.M. is grateful for an
institutional grant from Lehigh University. The research work of D.R.G.
is supported by the National Science Foundation under grants Nos.
AST-0506573 and AST-0606861.
NR 28
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Z9 11
U1 0
U2 2
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 NOV 20
PY 2010
VL 724
IS 1
BP 379
EP 385
DI 10.1088/0004-637X/724/1/379
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678RC
UT WOS:000284096900032
ER
PT J
AU Pastorello, A
Smartt, SJ
Botticella, MT
Maguire, K
Fraser, M
Smith, K
Kotak, R
Magill, L
Valenti, S
Young, DR
Gezari, S
Bresolin, F
Kudritzki, R
Howell, DA
Rest, A
Metcalfe, N
Mattila, S
Kankare, E
Huang, KY
Urata, Y
Burgett, WS
Chambers, KC
Dombeck, T
Flewelling, H
Grav, T
Heasley, JN
Hodapp, KW
Kaiser, N
Luppino, GA
Lupton, RH
Magnier, EA
Monet, DG
Morgan, JS
Onaka, PM
Price, PA
Rhoads, PH
Siegmund, WA
Stubbs, CW
Sweeney, WE
Tonry, JL
Wainscoat, RJ
Waterson, MF
Waters, C
Wynn-Williams, CG
AF Pastorello, A.
Smartt, S. J.
Botticella, M. T.
Maguire, K.
Fraser, M.
Smith, K.
Kotak, R.
Magill, L.
Valenti, S.
Young, D. R.
Gezari, S.
Bresolin, F.
Kudritzki, R.
Howell, D. A.
Rest, A.
Metcalfe, N.
Mattila, S.
Kankare, E.
Huang, K. Y.
Urata, Y.
Burgett, W. S.
Chambers, K. C.
Dombeck, T.
Flewelling, H.
Grav, T.
Heasley, J. N.
Hodapp, K. W.
Kaiser, N.
Luppino, G. A.
Lupton, R. H.
Magnier, E. A.
Monet, D. G.
Morgan, J. S.
Onaka, P. M.
Price, P. A.
Rhoads, P. H.
Siegmund, W. A.
Stubbs, C. W.
Sweeney, W. E.
Tonry, J. L.
Wainscoat, R. J.
Waterson, M. F.
Waters, C.
Wynn-Williams, C. G.
TI ULTRA-BRIGHT OPTICAL TRANSIENTS ARE LINKED WITH TYPE Ic SUPERNOVAE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE supernovae: general; supernovae: individual (SN 2010gx, SCP-06F6, SN
2005ap)
ID INFRARED LIGHT CURVES; GAMMA-RAY BURST; PAIR-INSTABILITY; SN 2002AP;
DISCOVERY; 1998BW; METAMORPHOSIS; PHOTOMETRY; EXPLOSION; EVOLUTION
AB Recent searches by unbiased, wide-field surveys have uncovered a group of extremely luminous optical transients. The initial discoveries of SN 2005ap by the Texas Supernova Search and SCP-06F6 in a deep Hubble pencil beam survey were followed by the Palomar Transient Factory confirmation of host redshifts for other similar transients. The transients share the common properties of high optical luminosities (peak magnitudes similar to -21 to -23), blue colors, and a lack of H or He spectral features. The physical mechanism that produces the luminosity is uncertain, with suggestions ranging from jet-driven explosion to pulsational pair instability. Here, we report the most detailed photometric and spectral coverage of an ultra-bright transient (SN 2010gx) detected in the Pan-STARRS 1 sky survey. In common with other transients in this family, early-time spectra show a blue continuum and prominent broad absorption lines of O II. However, about 25 days after discovery, the spectra developed type Ic supernova features, showing the characteristic broad Fe II and Si II absorption lines. Detailed, post-maximum follow-up may show that all SN 2005ap and SCP-06F6 type transients are linked to supernovae Ic. This poses problems in understanding the physics of the explosions: there is no indication from late-time photometry that the luminosity is powered by (56)Ni, the broad light curves suggest very large ejected masses, and the slow spectral evolution is quite different from typical Ic timescales. The nature of the progenitor stars and the origin of the luminosity are intriguing and open questions.
C1 [Pastorello, A.; Smartt, S. J.; Botticella, M. T.; Maguire, K.; Fraser, M.; Smith, K.; Kotak, R.; Magill, L.; Valenti, S.; Young, D. R.; Mattila, S.; Kankare, E.] Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
[Gezari, S.; Grav, T.] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA.
[Bresolin, F.; Kudritzki, R.; Burgett, W. S.; Chambers, K. C.; Dombeck, T.; Flewelling, H.; Heasley, J. N.; Hodapp, K. W.; Kaiser, N.; Luppino, G. A.; Magnier, E. A.; Morgan, J. S.; Onaka, P. M.; Price, P. A.; Rhoads, P. H.; Siegmund, W. A.; Sweeney, W. E.; Tonry, J. L.; Wainscoat, R. J.; Waterson, M. F.; Waters, C.; Wynn-Williams, C. G.] Univ Hawaii Manoa, Inst Astron, Honolulu, HI 96822 USA.
[Howell, D. A.] Univ Calif Santa Barbara, Cumbres Observ Global Telescope Network, Santa Barbara, CA 93117 USA.
[Howell, D. A.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93117 USA.
[Rest, A.; Stubbs, C. W.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA.
[Metcalfe, N.] Univ Durham, Dept Phys, Durham DH1 3LE, England.
[Mattila, S.; Kankare, E.] Univ Turku, Tuorla Observ, Dept Phys & Astron, FI-21500 Piikkio, Finland.
[Mattila, S.] AlbaNova Univ Ctr, Stockholm Observ, Dept Astron, SE-10691 Stockholm, Sweden.
[Kankare, E.] Nord Optic Telescope, E-38700 Santa Cruz De La Palma, Spain.
[Huang, K. Y.] Acad Sinica, Inst Astron & Astrophys, Taipei 106, Taiwan.
[Urata, Y.] Natl Cent Univ, Inst Astron, Chungli 32054, Taiwan.
[Lupton, R. H.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA.
[Monet, D. G.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA.
RP Pastorello, A (reprint author), Queens Univ Belfast, Sch Math & Phys, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland.
EM a.pastorello@qub.ac.uk
RI Stubbs, Christopher/C-2829-2012; Waterson, Mark/B-7352-2013;
OI Stubbs, Christopher/0000-0003-0347-1724; Waterson,
Mark/0000-0002-0192-2686; Kotak, Rubina/0000-0001-5455-3653; Fraser,
Morgan/0000-0003-2191-1674; Chambers, Kenneth /0000-0001-6965-7789;
Metcalfe, Nigel/0000-0001-9034-4402; Flewelling,
Heather/0000-0002-1050-4056
FU EURYI
FX The PS1 Surveys have been made possible through contributions of the
Institute for Astronomy at the University of Hawaii in Manoa, the
Pan-STARRS Project Office, the Max-Planck Society and its participating
institutes, the Max Planck Institute for Astronomy, Heidelberg and the
Max Planck Institute for Extraterrestrial Physics, Garching, The Johns
Hopkins University, the University of Durham, the University of
Edinburgh, the Queens University Belfast, the Harvard-Smithsonian Center
for Astrophysics, and the Los Cumbres Observatory Global Telescope
Network, Incorporated. This work was conducted as part of a EURYI scheme
award.
NR 49
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U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD NOV 20
PY 2010
VL 724
IS 1
BP L16
EP L21
DI 10.1088/2041-8205/724/1/L16
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679HM
UT WOS:000284152500004
ER
PT J
AU Strawn, AA
Hwang, PF
Davis, T
Elster, E
Tadaki, D
Sheppard, F
AF Strawn, Alan Anthony
Hwang, Paul F.
Davis, Thomas
Elster, Eric
Tadaki, Doug
Sheppard, Forest
TI Lyophilized Platelet Transfusion Does Not Constitute An Immunologic
"Second Hit" In a Non-Human Primate Hemorrhagic Shock Model.
SO BLOOD
LA English
DT Meeting Abstract
CT 52nd Annual Meeting of the American-Society-of-Hematology (ASH)
CY DEC 04-07, 2010
CL Orlando, FL
SP Amer Soc Hematol
C1 [Strawn, Alan Anthony; Elster, Eric; Sheppard, Forest] Natl Naval Med Ctr, Bethesda, MD USA.
[Hwang, Paul F.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Davis, Thomas; Tadaki, Doug] USN, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC HEMATOLOGY
PI WASHINGTON
PA 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA
SN 0006-4971
J9 BLOOD
JI Blood
PD NOV 19
PY 2010
VL 116
IS 21
BP 1376
EP 1376
PG 1
WC Hematology
SC Hematology
GA 752BH
UT WOS:000289662203691
ER
PT J
AU Saneyoshi, H
Deschamps, JR
Marquez, VE
AF Saneyoshi, Hisao
Deschamps, Jeffrey R.
Marquez, Victor E.
TI Synthesis of Conformationally Locked L-Deoxythreosyl Phosphonate
Nucleosides Built on a Bicyclo[3.1.0]hexane Template
SO JOURNAL OF ORGANIC CHEMISTRY
LA English
DT Article
ID NUCLEOTIDE ANALOGS; ANTIVIRAL ACTIVITY; CYCLOPROPYLAMINES; VERSATILE;
HIV
AB Two conformationally locked versions of L-deoxythreosyl phosphonate nucleosides (2 and 3) were synthesized to investigate the preference of HIV reverse transcriptase for a conformation displaying either a fully diaxial or fully diequatorial disposition of substituents Synthesis of the enantiomeric 4-(6-amino-9H-purin-9-yl)bicyclo[3 1 0]hexan-2-ol carbocyclic nucleoside precursors (diaxially disposed) proceeded straightforwardly from commercially available (1R,4S)-4-hydroxy-2-cyclopent-2-enyl-1-yl acetate employing a hydroxyl-directed Simmons-Smith cyclopropanation that culminated with a Mitsunobu coupling of the purine base For the more complicated 1-(6-amino-9H-punn-9-yl)bicyclo[3 1 0]hexan-3-ol carbocyclic nucleoside precursors (diequatorially disposed), the obligatory linear approach required the syntheses of key 1-aminobicyclo[3 1 0]hexan-3-yl benzoate precursors that were assembled via the amide variant of the Kulinkovich reaction involving the intramolecular cyclopropanation of a substituted delta-vinylamide Completion of the purine ring was achieved by conventional approaches but with much improved yields through the use of a microwave reactor The syntheses of the phosphonates and the corresponding diphosphates were achieved by conventional means None of the diphosphates, which were supposed to act as nucleoside triphosphate mimics, could compete with dATP even when present in a 10-fold excess
C1 [Saneyoshi, Hisao; Marquez, Victor E.] NCI, Biol Chem Lab, Ctr Canc Res, NIH, Frederick, MD 21702 USA.
[Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
RP Marquez, VE (reprint author), NCI, Biol Chem Lab, Ctr Canc Res, NIH, Frederick, MD 21702 USA.
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU NIH, National Cancer Institute, Center for Cancer Research
FX We express their gratitude to Drs Stephen H Hughes, Paul Boyer, and B
Christie Vu of the HIV Drug Resistant Program at NCI for the biological
testing The advice and help of Dr Stefan G Sarafianos of the Department
of Microbiology at the University of Missouri-Columbia is also
appreciated This research was supported by the Intramural Research
Program of the NIH, National Cancer Institute, Center for Cancer
Research
NR 20
TC 8
Z9 8
U1 0
U2 5
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 NOV 19
PY 2010
VL 75
IS 22
BP 7659
EP 7669
DI 10.1021/jo101475p
PG 11
WC Chemistry, Organic
SC Chemistry
GA 678MO
UT WOS:000284080300019
PM 20964394
ER
PT J
AU Ackermann, M
Ajello, M
Atwood, WB
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellardi, F
Bellazzini, R
Belli, F
Berenji, B
Blandford, RD
Bloom, ED
Bogart, JR
Bonamente, E
Borgland, AW
Brandt, TJ
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Busetto, G
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carlson, P
Carrigan, S
Casandjian, JM
Ceccanti, M
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Cillis, AN
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Corbet, R
DeKlotz, M
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Di Bernardo, G
Silva, EDE
Drell, PS
Drlica-Wagner, A
Dubois, R
Fabiani, D
Favuzzi, C
Fegan, SJ
Fortin, P
Fukazawa, Y
Funk, S
Fusco, P
Gaggero, D
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grasso, D
Grenier, IA
Grondin, MH
Grove, JE
Guiriec, S
Gustafsson, M
Hadasch, D
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Garde, ML
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Minuti, M
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Moretti, E
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Petrosian, V
Pinchera, M
Piron, F
Porter, TA
Profumo, S
Raino, S
Rando, R
Rapposelli, E
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ripken, J
Ritz, S
Rochester, LS
Romani, RW
Roth, M
Sadrozinski, HFW
Saggini, N
Sanchez, D
Sander, A
Sgro, C
Siskind, EJ
Smith, PD
Spandre, G
Spinelli, P
Stawarz, L
Stephens, TE
Strickman, MS
Strong, AW
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Turri, M
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wallace, E
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Ziegler, M
AF Ackermann, M.
Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellardi, F.
Bellazzini, R.
Belli, F.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carlson, P.
Carrigan, S.
Casandjian, J. M.
Ceccanti, M.
Cecchi, C.
Celik, Oe
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Cillis, A. N.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Corbet, R.
DeKlotz, M.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
Di Bernardo, G.
do Couto e Silva, E.
Drell, P. S.
Drlica-Wagner, A.
Dubois, R.
Fabiani, D.
Favuzzi, C.
Fegan, S. J.
Fortin, P.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gaggero, D.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grasso, D.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Garde, M. Llena
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Minuti, M.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Moretti, E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Petrosian, V.
Pinchera, M.
Piron, F.
Porter, T. A.
Profumo, S.
Raino, S.
Rando, R.
Rapposelli, E.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ripken, J.
Ritz, S.
Rochester, L. S.
Romani, R. W.
Roth, M.
Sadrozinski, H. F. -W.
Saggini, N.
Sanchez, D.
Sander, A.
Sgro, C.
Siskind, E. J.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stawarz, L.
Stephens, T. E.
Strickman, M. S.
Strong, A. W.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Turri, M.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wallace, E.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
SO PHYSICAL REVIEW D
LA English
DT Article
ID LARGE-AREA TELESCOPE; SPACE-TELESCOPE; ENERGY-SPECTRA; SOLAR MINIMUM;
POSITRONS; PROPAGATION; MODULATION; SPECTROMETER; GALAXY
AB We present the results of our analysis of cosmic-ray electrons using about 8 x 10(6) electron candidates detected in the first 12 months on-orbit by the Fermi Large Area Telescope. This work extends our previously published cosmic-ray electron spectrum down to 7 GeV, giving a spectral range of approximately 2.5 decades up to 1 TeV. We describe in detail the analysis and its validation using beam-test and on-orbit data. In addition, we describe the spectrum measured via a subset of events selected for the best energy resolution as a cross-check on the measurement using the full event sample. Our electron spectrum can be described with a power law proportional to E-3.08+/-0.05 with no prominent spectral features within systematic uncertainties. Within the limits of our uncertainties, we can accommodate a slight spectral hardening at around 100 GeV and a slight softening above 500 GeV.
C1 [Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Borgland, A. W.; Brez, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Petrosian, V.; Porter, T. A.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Turri, M.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Borgland, A. W.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Petrosian, V.; Porter, T. A.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Turri, M.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Profumo, S.; Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Profumo, S.; Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Baldini, L.; Bellardi, F.; Bellazzini, R.; Bregeon, J.; Brez, A.; Ceccanti, M.; Di Bernardo, G.; Fabiani, D.; Gaggero, D.; Grasso, D.; Kuss, M.; Latronico, L.; Minuti, M.; Pesce-Rollins, M.; Pinchera, M.; Rapposelli, E.; Razzano, M.; Saggini, N.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CEA IRFU CNRS, Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.; Moretti, E.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.; Moretti, E.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Busetto, G.; Buson, S.; Gustafsson, M.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Busetto, G.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Brandt, T. J.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Belli, F.; Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Belli, F.; Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] M Merlin Univ, Dipartimento Fis, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.; Wallace, E.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Carlson, P.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Carlson, P.; Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Celik, Oe; Cillis, A. N.; Corbet, R.; Gehrels, N.; Harding, A. K.; Hays, E.; McEnery, J. E.; Moiseev, A. A.; Stephens, T. E.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, Ctr Res & Explorat Space Sci & Technol, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Corbet, R.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Corbet, R.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC USA.
[Cillis, A. N.] Parbellon IAFE, Inst Astron & Fis Espacio, Buenos Aires, DF, Argentina.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[DeKlotz, M.] Stellar Solut Inc, Palo Alto, CA 94306 USA.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gasparrini, D.; Giommi, P.] Agenzia Spaziale Italiana ASI, Sci Data Ctr, I-00044 Rome, Italy.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.] Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res CSPAR, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Ozaki, M.; Stawarz, L.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Stawarz, L.] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland.
[Stephens, T. E.] Wyle Labs, El Segundo, CA 90245 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Ackermann, M (reprint author), Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
EM alexander.a.moiseev@nasa.gov; carmelo.sgro@pi.infn.it
RI Hays, Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Funk,
Stefan/B-7629-2015; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; Johannesson, Gudlaugur/O-8741-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
giglietto, nicola/I-8951-2012; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; Reimer, Olaf/A-3117-2013;
Tosti, Gino/E-9976-2013; Ozaki, Masanobu/K-1165-2013; Rando,
Riccardo/M-7179-2013; McEnery, Julie/D-6612-2012; Baldini,
Luca/E-5396-2012; lubrano, pasquale/F-7269-2012; Morselli,
Aldo/G-6769-2011; Kuss, Michael/H-8959-2012; Grasso, Dario/I-2440-2012;
OI De Angelis, Alessandro/0000-0002-3288-2517; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214;
SPINELLI, Paolo/0000-0001-6688-8864; Rando,
Riccardo/0000-0001-6992-818X; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Giroletti, Marcello/0000-0002-8657-8852;
Moretti, Elena/0000-0001-5477-9097; Funk, Stefan/0000-0002-2012-0080;
Loparco, Francesco/0000-0002-1173-5673; Gargano,
Fabio/0000-0002-5055-6395; Johannesson, Gudlaugur/0000-0003-1458-7036;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Stephens,
Thomas/0000-0003-3065-6871; giommi, paolo/0000-0002-2265-5003;
giglietto, nicola/0000-0002-9021-2888; Thompson,
David/0000-0001-5217-9135; Reimer, Olaf/0000-0001-6953-1385; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
Grasso, Dario/0000-0001-7761-7242; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU K. A. Wallenberg Foundation; International Doctorate on Astroparticle
Physics (IDAPP) program
FX The Fermi LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States; the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France; the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of
Education, Culture, Sports, Science, and Technology (MEXT), High Energy
Accelerator Research Organization (KEK), and Japan Aerospace Exploration
Agency (JAXA) in Japan; and the K. A. Wallenberg Foundation, the Swedish
Research Council, and the Swedish National Space Board in Sweden.
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France. We would
like to thank the INFN GRID Data Centers of Pisa, Trieste, and
CNAF-Bologna; the DOE SLAC National Accelerator Laboratory Computing
Division and the CNRS/IN2P3 Computing Center
(CC-IN2P3-Lyon/Villeurbanne) in partnership with CEA/DSM/Irfu for their
strong support in performing the massive simulations necessary for this
work. J. Conrad is Fellow of the Royal Swedish Academy of Sciences,
funded by a grant from the K. A. Wallenberg Foundation. L. Tibaldo is
partially supported by the International Doctorate on Astroparticle
Physics (IDAPP) program.
NR 47
TC 245
Z9 247
U1 2
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD NOV 18
PY 2010
VL 82
IS 9
AR 092004
DI 10.1103/PhysRevD.82.092004
PG 20
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 682KI
UT WOS:000284402000002
ER
PT J
AU Ackermann, M
Ajello, M
Atwood, WB
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cuoco, A
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Di Bernardo, G
Silva, EDE
Drell, PS
Dubois, R
Favuzzi, C
Fegan, SJ
Focke, WB
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gaggero, D
Gargano, F
Germani, S
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grasso, D
Grenier, IA
Grove, JE
Guiriec, S
Gustafsson, M
Hadasch, D
Harding, AK
Hayashi, K
Hays, E
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Garde, ML
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Moretti, E
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Naumann-Godo, M
Nolan, PL
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Profumo, S
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ripken, J
Ritz, S
Roth, M
Sadrozinski, HFW
Sander, A
Schalk, TL
Sgro, C
Siegal-Gaskins, J
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Strong, AW
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Zaharijas, G
Ziegler, M
AF Ackermann, M.
Ajello, M.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cecchi, C.
Celik, Oe
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cuoco, A.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
Di Bernardo, G.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gaggero, D.
Gargano, F.
Germani, S.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grasso, D.
Grenier, I. A.
Grove, J. E.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Harding, A. K.
Hayashi, K.
Hays, E.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Garde, M. Llena
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Moretti, E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Naumann-Godo, M.
Nolan, P. L.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Profumo, S.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ripken, J.
Ritz, S.
Roth, M.
Sadrozinski, H. F. -W.
Sander, A.
Schalk, T. L.
Sgro, C.
Siegal-Gaskins, J.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Zaharijas, G.
Ziegler, M.
TI Searches for cosmic-ray electron anisotropies with the Fermi Large Area
Telescope
SO PHYSICAL REVIEW D
LA English
DT Article
ID ARRIVAL DIRECTIONS; SPECTRUM; MILAGRO; CLUMPS
AB The Large Area Telescope on board the Fermi satellite (Fermi LAT) detected more than 1.6 x 10(6) cosmic-ray electrons/positrons with energies above 60 GeV during its first year of operation. The arrival directions of these events were searched for anisotropies of angular scale extending from similar to 10 degrees up to 90 degrees, and of minimum energy extending from 60 GeV up to 480 GeV. Two independent techniques were used to search for anisotropies, both resulting in null results. Upper limits on the degree of the anisotropy were set that depended on the analyzed energy range and on the anisotropy's angular scale. The upper limits for a dipole anisotropy ranged from similar to 0.5% to similar to 10%.
C1 [Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Profumo, S.; Ritz, S.; Sadrozinski, H. F. -W.; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Profumo, S.; Ritz, S.; Sadrozinski, H. F. -W.; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Di Bernardo, G.; Gaggero, D.; Grasso, D.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CEA IRFU CNRS, Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Gustafsson, M.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Hadasch, D.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe; Harding, A. K.; Hays, E.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, Ctr Res & Explorat Space Sci & Technol CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.; Zaharijas, G.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Cuoco, A.; Garde, M. Llena; Moretti, E.; Ripken, J.; Yang, Z.; Ylinen, T.; Zaharijas, G.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Univ Udine, Grp Collegato Udine, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Astrofis, Osservatorio Astron Trieste, I-34143 Trieste, Italy.
[Fukazawa, Y.; Hayashi, K.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Giommi, P.] Agenzia Spaziale Italiana ASI, Sci Data Ctr, I-00044 Rome, Italy.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res CSPAR, Huntsville, AL 35899 USA.
[Hughes, R. E.; Sander, A.; Siegal-Gaskins, J.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux 1, Ctr Etud Nucl Bordeaux Gradignan, CNRS IN2p3, F-33175 Gradignan, France.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Moretti, E.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
[Zaharijas, G.] CEA Saclay, Inst Theoret Phys, F-91191 Gif Sur Yvette, France.
RP Ackermann, M (reprint author), Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
EM mazziotta@ba.infn.it; vvasilei@milkyway.gsfc.nasa.gov
RI giglietto, nicola/I-8951-2012; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; McEnery, Julie/D-6612-2012; Baldini,
Luca/E-5396-2012; lubrano, pasquale/F-7269-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Rando, Riccardo/M-7179-2013;
Hays, Elizabeth/D-3257-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; Grasso, Dario/I-2440-2012; Johnson,
Neil/G-3309-2014; Funk, Stefan/B-7629-2015; Loparco,
Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Orlando, E/R-5594-2016;
OI De Angelis, Alessandro/0000-0002-3288-2517; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Giroletti,
Marcello/0000-0002-8657-8852; Moretti, Elena/0000-0001-5477-9097;
giglietto, nicola/0000-0002-9021-2888; Thompson,
David/0000-0001-5217-9135; lubrano, pasquale/0000-0003-0221-4806;
Reimer, Olaf/0000-0001-6953-1385; Morselli, Aldo/0000-0002-7704-9553;
Grasso, Dario/0000-0001-7761-7242; Funk, Stefan/0000-0002-2012-0080;
Loparco, Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Gargano, Fabio/0000-0002-5055-6395;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Sgro',
Carmelo/0000-0001-5676-6214; Zaharijas, Gabrijela/0000-0001-8484-7791;
SPINELLI, Paolo/0000-0001-6688-8864; Rando,
Riccardo/0000-0001-6992-818X; giommi, paolo/0000-0002-2265-5003;
Berenji, Bijan/0000-0002-4551-772X; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
NR 36
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U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1550-7998
EI 1550-2368
J9 PHYS REV D
JI Phys. Rev. D
PD NOV 18
PY 2010
VL 82
IS 9
AR 092003
DI 10.1103/PhysRevD.82.092003
PG 15
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 682KI
UT WOS:000284402000001
ER
PT J
AU Hedlin, MAH
Drob, D
Walker, K
de Groot-Hedlin, C
AF Hedlin, Michael A. H.
Drob, Doug
Walker, Kris
de Groot-Hedlin, Catherine
TI A study of acoustic propagation from a large bolide in the atmosphere
with a dense seismic network
SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
LA English
DT Article
ID INFRASOUND PROPAGATION; SOUND-PROPAGATION; GRAVITY-WAVES; THERMOSPHERE;
EARTHQUAKE; WINDS
AB A large meteor entered the atmosphere above northeastern Oregon on 19 February 2008 at 530 PST. Several hundreds of broadband seismic stations in the U.S. Pacific Northwest recorded acoustic-to-seismic coupled signals from this event. The travel times of the first arriving energy are consistent with a terminal explosion source model, suggesting that the large size of the explosion masked any signals associated with a continuous line source along its supersonic trajectory. Several infrasound arrays in North America also recorded this event. Both the seismic and infrasound data have been used to locate the explosion in 3-D space and time. Climatological atmospheric velocity models predict that infrasound signals from sources that occur at mid-northern latitudes in winter are usually ducted to the east due to eastward zonal winds. In this paper, we analyze travel time picks and use 3-D ray tracing to generate synthetic travel times based on various atmospheric models to show that the seismic network data instead reveal a predominant westward propagation direction. A sudden stratospheric warming event that reversed the zonal wind flow explains this westward propagation. The seismic data illuminate in unprecedented spatial detail the range and azimuthal definition of shadow zones out to a range of 500 km, suggesting that dense seismic networks can be used to study infrasound propagation at spatial resolutions that exceed that which can be done with only a handful of globally distributed infrasound arrays.
C1 [Hedlin, Michael A. H.; Walker, Kris; de Groot-Hedlin, Catherine] Univ Calif San Diego, Scripps Inst Oceanog, Inst Geophys & Planetary Phys, Lab Atmospher Acoust, La Jolla, CA 92093 USA.
[Drob, Doug] USN, Res Lab, Upper Atmospher Modeling Sect, Washington, DC 20375 USA.
RP Hedlin, MAH (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, Inst Geophys & Planetary Phys, Lab Atmospher Acoust, 9500 Gilman Dr, La Jolla, CA 92093 USA.
RI de Groot-Hedlin, Catherine/A-4919-2013; Drob, Douglas/G-4061-2014
OI de Groot-Hedlin, Catherine/0000-0002-3063-2805; Drob,
Douglas/0000-0002-2045-7740
FU U.S. Army Space and Missile Defense Command
FX This study would not have been possible without generous contributions
from a large group of people. We are deeply indebted to Matt Fouch
(University of Arizona) and David James (Carnegie Institution of
Washington) for giving us access to data from their High Lava Plains
Seismic Experiment. We are also very much indebted to Gene Humphries
(University of Oregon) for giving us access to data from the Wallowa
Flexible Array Experiment. We would like to extend our deep appreciation
to Jeffrey Brower of the Global Meteor Scatter Network for providing us
with the video from his all-sky camera in West Kelowna, British
Columbia, and his estimate of the azimuth to the terminal burst. We
would like to thank Alan Hildebrand of the University of Calgary and Don
Hladiuk for providing us with the Calgary all-sky video and terminal
burst time. In particular, we would like to acknowledge Earthscope and
IRIS for the data from USArray, without which this study would not have
been possible. The ECMWF data have been kindly provided by the
Provisional Technical Secretariat of CTBTO solely for the purpose of
CTBT-related scientific and technical activities. We frequently used
Boulder Real-Time Technologies Antelope software to analyze the data. We
would like to extend our deep appreciation to two anonymous reviewers
who provided insightful comments and made numerous suggestions that
strengthened our paper. This publication was made possible through the
support provided by the U.S. Army Space and Missile Defense Command. The
opinions expressed herein are those of the authors and do not
necessarily reflect the views of the U.S. Army Space and Missile Defense
Command.
NR 61
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U2 2
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 NOV 17
PY 2010
VL 115
AR B11312
DI 10.1029/2010JB007669
PG 17
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 683PG
UT WOS:000284487100004
ER
PT J
AU Juliano, JJ
Porter, K
Mwapasa, V
Sem, R
Rogers, WO
Ariey, F
Wongsrichanalai, C
Read, A
Meshnick, SR
AF Juliano, Jonathan J.
Porter, Kimberly
Mwapasa, Victor
Sem, Rithy
Rogers, William O.
Ariey, Frederic
Wongsrichanalai, Chansuda
Read, Andrew
Meshnick, Steven R.
TI Exposing malaria in-host diversity and estimating population diversity
by capture-recapture using massively parallel pyrosequencing
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE Plasmodium falciparum; next generation sequencing
ID PLASMODIUM-FALCIPARUM INFECTIONS; HETERODUPLEX TRACKING ASSAY;
SPECIES-RICHNESS; DRUG-RESISTANCE; ANTIMALARIAL TRIALS; MOLECULAR
EVOLUTION; PCR; PARASITES; RECOMBINATION; TRANSMISSION
AB Malaria infections commonly contain multiple genetically distinct variants. Mathematical and animal models suggest that interactions among these variants have a profound impact on the emergence of drug resistance. However, methods currently used for quantifying parasite diversity in individual infections are insensitive to low-abundance variants and are not quantitative for variant population sizes. To more completely describe the in-host complexity and ecology of malaria infections, we used massively parallel pyrosequencing to characterize malaria parasite diversity in the infections of a group of patients. By individually sequencing single strands of DNA in a complex mixture, this technique can quantify uncommon variants in mixed infections. The in-host diversity revealed by this method far exceeded that described by currently recommended genotyping methods, with as many as sixfold more variants per infection. In addition, in paired pre- and posttreatment samples, we show a complex milieu of parasites, including variants likely up-selected and down-selected by drug therapy. As with all surveys of diversity, sampling limitations prevent full discovery and differences in sampling effort can confound comparisons among samples, hosts, and populations. Here, we used ecological approaches of species accumulation curves and capture-recapture to estimate the number of variants we failed to detect in the population, and show that these methods enable comparisons of diversity before and after treatment, as well as between malaria populations. The combination of ecological statistics and massively parallel pyrosequencing provides a powerful tool for studying the evolution of drug resistance and the in-host ecology of malaria infections.
C1 [Juliano, Jonathan J.] Univ N Carolina, Sch Med, Div Infect Dis, Chapel Hill, NC 27514 USA.
[Porter, Kimberly; Meshnick, Steven R.] Univ N Carolina, Dept Epidemiol, Gillings Sch Global Publ Hlth, Chapel Hill, NC 27514 USA.
[Mwapasa, Victor] Univ Malawi, Coll Med, Dept Community Hlth, Blantyre 3, Malawi.
[Sem, Rithy] Natl Ctr Parasitol Entomol & Malaria Control, Phnom Penh, Cambodia.
[Rogers, William O.; Wongsrichanalai, Chansuda] USN, Med Res Unit 2, Honolulu, HI 96860 USA.
[Ariey, Frederic] Inst Pasteur Cambodge, Phnom Penh, Cambodia.
[Read, Andrew] Penn State Univ, Ctr Infect Dis Dynam, Dept Biol, University Pk, PA 16802 USA.
[Read, Andrew] Penn State Univ, Dept Entomol, University Pk, PA 16802 USA.
[Read, Andrew] NIH, Fogarty Int Ctr, Bethesda, MD 20892 USA.
RP Juliano, JJ (reprint author), Univ N Carolina, Sch Med, Div Infect Dis, Chapel Hill, NC 27514 USA.
EM jjuliano@med.unc.edu
RI Valle, Ruben/A-7512-2013
FU National Institute of Allergy and Infectious Diseases (NIAID)
[1R21AI076785, T32-AI070114-01]; National Center for Research Resources
[KL2RR025746]
FX We thank Xiaojun Guan for cluster computing support. We are also
grateful to Dr. Socheat Duong and Dr. Sinuon Muth of the Cambodian
National Malaria Control Program for their support. We thank Steve
Taylor, Ian Hastings, and our anonymous reviewers for their thoughtful
reviews. This project was funded by National Institute of Allergy and
Infectious Diseases (NIAID) Grant 1R21AI076785, National Center for
Research Resources Award KL2RR025746 (to J.J.J.), and National Research
Service Award T32-AI070114-01 from NIAID (to K.P.). A.R. has benefited
from discussion with members of the Research and Policy in Infectious
Disease Dynamics program of the Science and Technology Directorate,
Department of Homeland Security, and the Fogarty International Center,
National Institutes of Health.
NR 50
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U1 1
U2 7
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 NOV 16
PY 2010
VL 107
IS 46
BP 20138
EP 20143
DI 10.1073/pnas.1007068107
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 680UT
UT WOS:000284261800096
PM 21041629
ER
PT J
AU Neta, B
Petkovic, MS
AF Neta, B.
Petkovic, M. S.
TI Construction of optimal order nonlinear solvers using inverse
interpolation
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Multipoint iterative methods; Nonlinear equations; Optimal order of
convergence; Inverse interpolation
ID 4TH-ORDER ITERATIVE METHODS; EQUATIONS; FAMILY; CONVERGENCE
AB There is a vast literature on finding simple roots of nonlinear equations by iterative methods. These methods can be classified by order, by the information used or by efficiency. There are very few optimal methods, that is methods of order 2(m) requiring m + 1 function evaluations per iteration. Here we give a general way to construct such methods by using inverse interpolation and any optimal two-point method. The presented optimal multipoint methods are tested on numerical examples and compared to existing methods of the same order of convergence. Published by Elsevier Inc.
C1 [Neta, B.] USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Petkovic, M. S.] Univ Nis, Fac Elect Engn, Dept Math, Nish 18000, Serbia.
RP Neta, B (reprint author), USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM byneta@gmail.com
RI Neta, Beny/B-1737-2009;
OI Neta, Beny/0000-0002-7417-7496
FU Serbian Ministry of Science [144024]
FX This work was partially supported by the Serbian Ministry of Science
under grant 144024.
NR 23
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U1 0
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0096-3003
EI 1873-5649
J9 APPL MATH COMPUT
JI Appl. Math. Comput.
PD NOV 15
PY 2010
VL 217
IS 6
BP 2448
EP 2455
DI 10.1016/j.amc.2010.07.045
PG 8
WC Mathematics, Applied
SC Mathematics
GA 665QA
UT WOS:000283049300017
ER
PT J
AU Lindquist, JM
Giraldo, FX
Neta, B
AF Lindquist, Joseph M.
Giraldo, Francis X.
Neta, Beny
TI Klein-Gordon equation with advection on unbounded domains using spectral
elements and high-order non-reflecting boundary conditions
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Klein-Gordon equation; Advection; High-order; Non-reflecting boundary
condition; Spectral elements; Higdon; Givoli-Neta; Runge-Kutta
ID TIME-DEPENDENT WAVES; DISPERSIVE WAVES; ELASTIC-WAVES; FORMULATION;
EXTENSIONS
AB A reduced shallow water model under constant, non-zero advection in the infinite channel is considered. High-order (Givoli-Neta) non-reflecting boundary conditions are introduced in various configurations to create a finite computational space and solved using a spectral element formulation with high-order time integration. Numerical examples are used to demonstrate the synergy of using high-order spatial, time, and boundary discretization. We show that by balancing all numerical errors involved, high-order accuracy can be achieved for unbounded domain problems. Published by Elsevier Inc.
C1 [Lindquist, Joseph M.; Giraldo, Francis X.; Neta, Beny] USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Lindquist, JM (reprint author), USN, Postgrad Sch, Dept Appl Math, 833 Dyer Rd, Monterey, CA 93943 USA.
EM jmlindqu@nps.edu
RI Neta, Beny/B-1737-2009;
OI Neta, Beny/0000-0002-7417-7496
FU US Army; Naval Postgraduate School
FX The first author is indebted to the US Army for its support. The authors
would like to express their appreciation to the Naval Postgraduate
School for its support of this research. Finally, the authors wish to
thank the reviewers for their helpful insights, suggestions and
comments.
NR 34
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Z9 7
U1 0
U2 4
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0096-3003
EI 1873-5649
J9 APPL MATH COMPUT
JI Appl. Math. Comput.
PD NOV 15
PY 2010
VL 217
IS 6
BP 2710
EP 2723
DI 10.1016/j.amc.2010.07.079
PG 14
WC Mathematics, Applied
SC Mathematics
GA 665QA
UT WOS:000283049300045
ER
PT J
AU Nyakiti, LO
Chaudhuri, J
Gu, Z
Edgar, JH
AF Nyakiti, L. O.
Chaudhuri, J.
Gu, Z.
Edgar, J. H.
TI Transmission electron microscopy study of defects in AlN crystals with
rough and smooth surface grains
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article
DE Dislocations; Grain boundaries; Polarity; Transmission election
microscopy; Sublimation-recombination crystal growth; Aluminum nitride
AB Defects present in (0 0 0 1) textured polycrystalline AlN grown by the sublimation-recombination method were analyzed using transmission electron microscopy (TEM) methods. Grains in the polycrystalline boule had either a smooth or a rough surface. The rough surface grains had mainly edge dislocations, whereas the smooth surface grains had some sub-grain boundaries and were mostly free of dislocations. Dislocations at the grain boundaries were pinned and could not be annihilated. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Chaudhuri, J.] Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA.
[Nyakiti, L. O.] USN, Res Lab, Washington, DC 20375 USA.
[Gu, Z.; Edgar, J. H.] Kansas State Univ, Dept Chem Engn, Manhattan, KS 66506 USA.
RP Chaudhuri, J (reprint author), Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA.
EM jharna.chaudhuri@ttu.edu
RI Chaudhuri, Jharna/E-8863-2013
FU NSF [DMR 0408774, DMR0515858]; Division of Scientific User Facilities,
Office of Science, U.S. Department of Energy
FX This work was supported by the NSF grant #DMR 0408774 and # DMR0515858.
TEM work was carried out at the SHaRE User Facility at Oak Ridge
National Laboratory (ORNL), which is sponsored by the Division of
Scientific User Facilities, Office of Science, U.S. Department of
Energy. The authors like to thank Dr. Ed Kenik at ORNL for many valuable
suggestions and help with the TEM work.
NR 0
TC 4
Z9 4
U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0248
J9 J CRYST GROWTH
JI J. Cryst. Growth
PD NOV 15
PY 2010
VL 312
IS 23
BP 3479
EP 3484
DI 10.1016/j.jcrysgro.2010.09.014
PG 6
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 686AY
UT WOS:000284670400012
ER
PT J
AU Yin, BJ
Ma, G
Yen, CY
Zhou, ZP
Wang, GX
Divino, CM
Casares, S
Chen, SH
Yang, WC
Pan, PY
AF Yin, Bingjiao
Ma, Ge
Yen, Chun-Yu
Zhou, Zuping
Wang, George X.
Divino, Celia M.
Casares, Sofia
Chen, Shu-Hsia
Yang, Wen-Chin
Pan, Ping-Ying
TI Myeloid-Derived Suppressor Cells Prevent Type 1 Diabetes in Murine
Models
SO JOURNAL OF IMMUNOLOGY
LA English
DT Article
ID REGULATORY T-CELLS; IMMUNE TOLERANCE; DISEASE; MICE; RECEPTOR;
COSTIMULATION; PATHOGENESIS; MECHANISMS; EXPANSION; MEDIATE
AB Effective immunotherapy for type 1 diabetes (T1D) relies on active induction of peripheral tolerance. Myeloid-derived suppressor cells (MDSCs) play a critical role in suppressing immune responses in various pathologic settings via multiple mechanisms, including expansion of regulatory T cells (Tregs). In this study, we investigated whether MDSCs could act as APCs to induce expansion of Ag-specific Tregs, suppress T cell proliferation, and prevent autoimmune T1D development. We found that MDSC-mediated expansion of Tregs and T cell suppression required MHC-dependent Ag presentation. A murine T1D model was established in INS-HA/RAG(-/-) mice in which animals received CD4-HA-TCR transgenic T cells via adoptive transfer. We found a significant reduction in the incidence of diabetes in recipients receiving MDSC plus HA, but not OVA peptide, leading to 75% diabetes-free mice among the treated animals. To test further whether MDSCs could prevent diabetes onset in NOD mice, nondiabetic NOD/SCID mice were injected with inflammatory T cells from diabetic NOD mice. MDSCs significantly prevented diabetes onset, and 60% of MDSC-treated mice remained diabetes free. The pancreata of treated mice showed significantly lower levels of lymphocyte infiltration in islet and less insulitis compared with that of the control groups. The protective effects of MDSCs might be mediated by inducing anergy in autoreactive T cells and the development of CD4(+) CD25(+) Foxp3(+) Tregs. Thist study demonstrates a remarkable capacity of transferred MDSCs to downregulate Ag-specific autoimmune responses and prevent diabetes onset, suggesting that MDSCs possess great potential as a novel cell-based tolerogenic therapy in the control of T1D and other autoimmune diseases. The Journal of Immunology, 2010, 185: 5828-5834.
C1 [Yin, Bingjiao; Ma, Ge; Zhou, Zuping; Wang, George X.; Chen, Shu-Hsia; Pan, Ping-Ying] Mt Sinai Sch Med, Dept Gene & Cell Med, New York, NY 10029 USA.
[Chen, Shu-Hsia] Mt Sinai Sch Med, Dept Gen Surg, New York, NY 10029 USA.
[Yen, Chun-Yu; Divino, Celia M.; Yang, Wen-Chin] Acad Sinica, Agr Biotechnol Res Ctr, Taipei, Taiwan.
[Yen, Chun-Yu; Yang, Wen-Chin] Natl Taiwan Univ, Inst Zool, Taipei 10764, Taiwan.
[Casares, Sofia] USN, Med Res Ctr, Walter Reed Army Inst Res, US Mil Malaria Vaccine Program,Infect Dis Directo, Silver Spring, MD 20920 USA.
RP Chen, SH (reprint author), Mt Sinai Sch Med, Dept Gene & Cell Med, Box 1496,1 Gustave L Levy Pl, New York, NY 10029 USA.
EM shu-hisa.chen@mssm.edu; wcyang@gate.sinica.edu.tw;
ping-ying.pan@mssm.edu
RI Yang, Wen-Chin/D-3441-2015
FU National Cancer Institute [CA70337, CA109322, DK073603]; Black Family
Stem Cell Foundation
FX This work was supported in part by National Cancer Institute RO1 Grants
CA70337, CA109322, and DK073603 and by a grant from Black Family Stem
Cell Foundation.
NR 29
TC 70
Z9 79
U1 0
U2 4
PU AMER ASSOC IMMUNOLOGISTS
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-1767
J9 J IMMUNOL
JI J. Immunol.
PD NOV 15
PY 2010
VL 185
IS 10
BP 5828
EP 5834
DI 10.4049/jimmunol.0903636
PG 7
WC Immunology
SC Immunology
GA 675RJ
UT WOS:000283848000020
PM 20956337
ER
PT J
AU Hastings, AS
Tulchinsky, DA
Williams, KJ
Pan, H
Beling, A
Campbell, JC
AF Hastings, Alexander S.
Tulchinsky, David A.
Williams, Keith J.
Pan, Huapu
Beling, Andreas
Campbell, Joe C.
TI Minimizing Photodiode Nonlinearities by Compensating Voltage-Dependent
Responsivity Effects
SO JOURNAL OF LIGHTWAVE TECHNOLOGY
LA English
DT Article
DE Distortion; nonlinearities; p-i-n photodiodes
ID HETEROJUNCTION BIPOLAR-TRANSISTORS; ELECTRIC-FIELD; PHOTODETECTORS;
MULTIPLICATION
AB Two voltage-dependant responsivity effects, impact ionization and Franz-Keldysh oscillations, are shown to have opposing effects at certain wavelengths in p-i-n photodiodes. It is shown that these two effects can compensate each other and minimize photodiode nonlinearities when optimized with respect to wavelength and bias voltage.
C1 [Hastings, Alexander S.; Tulchinsky, David A.; Williams, Keith J.] USN, Res Lab, Photon Technol Branch, Washington, DC 20375 USA.
[Pan, Huapu; Beling, Andreas; Campbell, Joe C.] Univ Virginia, Dept Elect & Comp Engn, Charlottesville, VA 22904 USA.
RP Hastings, AS (reprint author), George Washington Univ, Washington, DC 20052 USA.
EM alex.hastings@nrl.navy.mil
RI Pan, Huapu/C-8987-2011; Pan, Huapu/F-9019-2011
NR 14
TC 10
Z9 10
U1 0
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0733-8724
J9 J LIGHTWAVE TECHNOL
JI J. Lightwave Technol.
PD NOV 15
PY 2010
VL 28
IS 22
BP 3329
EP 3333
DI 10.1109/JLT.2010.2081968
PG 5
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA 684GZ
UT WOS:000284539700001
ER
PT J
AU Montes-Hugo, MA
Churnside, JH
Gould, RW
Arnone, RA
Foy, R
AF Montes-Hugo, M. A.
Churnside, J. H.
Gould, R. W.
Arnone, R. A.
Foy, R.
TI Spatial coherence between remotely sensed ocean color data and vertical
distribution of lidar backscattering in coastal stratified waters
SO REMOTE SENSING OF ENVIRONMENT
LA English
DT Article
DE Vertical structure; Inherent optical properties; Statistical modes;
Ocean color; Passive optical data; Backscattering; Lidar; Alaska;
Coastal waters
ID DIFFUSE REFLECTANCE; NATURAL-WATERS; PHYTOPLANKTON; CHLOROPHYLL;
ATLANTIC; LIGHT; MODEL; BIGHT; SHIP
AB Detection of sub-surface optical layers in marine waters has important applications in fisheries management, climate modeling, and decision-based systems related to military operations. Concurrent changes in the magnitude and spatial variability of remote sensing reflectance (R(rs)) ratios and submerged scattering layers were investigated in coastal waters of the northern Gulf of Alaska during summer of 2002 based on high resolution and simultaneous passive (MicroSAS) and active (Fish Lidar Oceanic Experimental, FLOE) optical measurements. Principal Component Analysis revealed that the spatial variability of total lidar backscattering signal (5) between 2.1 and 20 m depth was weakly associated with changes in the inherent optical properties (IOPs) of surface waters. Also based on a 250-m footprint, the vertical attenuation of S was inversely related to the IOPs (Spearman Rank Correlation up to -0.43). Low (arithmetic average and standard deviation) and high (skewness and kurtosis) moments of R(rs)(443)/R(rs)(490) and R(rs)(508)/R(rs)(555) ratios were correlated with vertical changes in total lidar backscattering signal (5) at different locations. This suggests the use of sub-pixel ocean color statistics to infer the spatial distribution of sub-surface scattering layers in coastal waters characterized by stratified conditions, well defined S layers (i.e., magnitude of S maximum comparable to near surface values), and relatively high vertically integrated phytoplankton pigments in the euphotic zone (chlorophyll a concentration >150 mg m(-2)). (C) 2010 Elsevier Inc. All rights reserved.
C1 [Montes-Hugo, M. A.] Mississippi State Univ, Mississippi State, MS 39529 USA.
[Churnside, J. H.] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Montes-Hugo, M. A.; Gould, R. W.; Arnone, R. A.] NASA, Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Foy, R.] NOAA Fisheries, Alaska Fisheries Sci Ctr, Kodiak, AK 99615 USA.
RP Montes-Hugo, MA (reprint author), Mississippi State Univ, Mississippi State, MS 39529 USA.
EM mmontes@ngi.msstate.edu
RI Churnside, James/H-4873-2013; Manager, CSD Publications/B-2789-2015
FU NRL [PE0601153N]
FX This work was supported by the NRL internal project "3D Remote Sensing
with a Multiple-Band Active and Passive System: Theoretical Basis",
PE0601153N. We thank the captain and crew of the FV Laura of Kodiak, the
pilot of the aircraft, and Tim Veenstra at Airborne Technologies Inc.
(Wasilla, Alaska).
NR 34
TC 3
Z9 3
U1 0
U2 13
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0034-4257
J9 REMOTE SENS ENVIRON
JI Remote Sens. Environ.
PD NOV 15
PY 2010
VL 114
IS 11
BP 2584
EP 2593
DI 10.1016/j.rse.2010.05.023
PG 10
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA 655IE
UT WOS:000282242000017
ER
PT J
AU Arrigo, KR
Pabi, S
van Dijken, GL
Maslowski, W
AF Arrigo, Kevin R.
Pabi, Sudeshna
van Dijken, Gert L.
Maslowski, Wieslaw
TI Air-sea flux of CO2 in the Arctic Ocean, 1998-2003
SO JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
LA English
DT Article
AB The Arctic Ocean has experienced an unprecedented reduction in sea ice over the last 3 decades, increasing the potential for greater exchange of gases such as carbon dioxide (CO2) between the atmosphere and the upper ocean. The present study utilizes remotely sensed data on distributions of both sea ice and chlorophyll a, together with modeled temperature and salinity fields, to obtain high-resolution basin-scale estimates of the air-sea flux of CO2 (FCO2) in the Arctic Ocean for the years 1998-2003. Concentrations of dissolved inorganic carbon (DIC) were derived from multiple linear regression relationships with sea surface temperature, salinity, and chlorophyll a. The partial pressure of carbon dioxide (pCO(2)) in surface waters was computed from DIC and alkalinity, the latter of which varied with salinity. FCO2 was calculated from the air-sea difference in pCO(2) and wind speed. Annual FCO2 was highest in the Atlantic-dominated Greenland and Barents sectors due to their lower sea ice cover, although area-normalized FCO2 in these sectors was low. Only the Siberian sector exhibited a significant increase in annual FCO2 during the time of our study, due to a corresponding increase in ice-free water. Overall, the Arctic Ocean was a net atmospheric sink for CO2, with annual FCO2 averaging 118 +/- 7 Tg C yr(-1) during 1998-2003.
C1 [Arrigo, Kevin R.; Pabi, Sudeshna; van Dijken, Gert L.] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA.
[Maslowski, Wieslaw] USN, Postgrad Sch, Dept Oceanog, Grad Sch Engn & Appl Sci, Monterey, CA 93943 USA.
RP Arrigo, KR (reprint author), Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA.
EM arrigo@stanford.edu
RI Van Dijken, Gert/C-5276-2011
FU NASA [NNG05GC92G]
FX We thank all the members of the Arrigo research group for their helpful
discussions and suggestions to improve the manuscript. We also thank the
Shelf Basin Interaction (SBI) project for providing some of the data
used to develop the algorithms presented in this paper. This research
was supported by NASA grant NNG05GC92G to K. Arrigo.
NR 57
TC 21
Z9 22
U1 0
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-BIOGEO
JI J. Geophys. Res.-Biogeosci.
PD NOV 12
PY 2010
VL 115
AR G04024
DI 10.1029/2009JG001224
PG 15
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 680GT
UT WOS:000284221100001
ER
PT J
AU Aggarwal, MM
Ahammed, Z
Alakhverdyants, AV
Alekseev, I
Alford, J
Anderson, BD
Anson, D
Arkhipkin, D
Averichev, GS
Balewski, J
Barnby, LS
Baumgart, S
Beavis, DR
Bellwied, R
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Biritz, B
Bland, LC
Bonner, BE
Bouchet, J
Braidot, E
Brandin, AV
Bridgeman, A
Bruna, E
Bueltmann, S
Bunzarov, I
Burton, TP
Cai, XZ
Caines, H
Sanchez, MCD
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, P
Clarke, RF
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Das, D
Dash, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Derevschikov, AA
de Souza, RD
Didenko, L
Djawotho, P
Dogra, SM
Dong, X
Drachenberg, JL
Draper, JE
Dunlop, JC
Mazumdar, MRD
Efimov, LG
Elhalhuli, E
Elnimr, M
Engelage, J
Eppley, G
Erazmus, B
Estienne, M
Eun, L
Evdokimov, O
Fachini, P
Fatemi, R
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fine, V
Fisyak, Y
Gagliardi, CA
Gangadharan, DR
Ganti, MS
Garcia-Solis, EJ
Geromitsos, A
Geurts, F
Ghazikhanian, V
Ghosh, P
Gorbunov, YN
Gordon, A
Grebenyuk, O
Grosnick, D
Guertin, SM
Gupta, A
Guryn, W
Haag, B
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heinz, M
Heppelmann, S
Hirsch, A
Hjort, E
Hoffman, AM
Hoffmann, GW
Hofman, DJ
Huang, B
Huang, HZ
Humanic, TJ
Huo, L
Igo, G
Jacobs, P
Jacobs, WW
Jena, C
Jin, F
Jones, CL
Jones, PG
Joseph, J
Judd, EG
Kabana, S
Kajimoto, K
Kang, K
Kapitan, J
Kauder, K
Keane, D
Kechechyan, A
Kettler, D
Kikola, DP
Kiryluk, J
Kisiel, A
Kizka, V
Klein, SR
Knospe, AG
Kocoloski, A
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Koroleva, L
Korsch, W
Kotchenda, L
Kouchpil, V
Kravtsov, P
Krueger, K
Krus, M
Kumar, L
Kurnadi, P
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, CH
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, L
Li, N
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lin, G
Lin, XY
Lindenbaum, SJ
Lisa, MA
Liu, F
Liu, H
Liu, J
Ljubicic, T
Llope, WJ
Longacre, RS
Love, WA
Lu, Y
Lukashov, EV
Luo, X
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Mall, OI
Mangotra, LK
Manweiler, R
Margetis, S
Markert, C
Masui, H
Matis, HS
Matulenko, YA
McDonald, D
McShane, TS
Meschanin, A
Milner, R
Minaev, NG
Mioduszewski, S
Mischke, A
Mitrovski, MK
Mohanty, B
Mondal, MM
Morozov, B
Morozov, DA
Munhoz, MG
Nandi, BK
Nattrass, C
Nayak, TK
Nelson, JM
Netrakanti, PK
Ng, MJ
Nogach, LV
Nurushev, SB
Odyniec, G
Ogawa, A
Okorokov, V
Oldag, EW
Olson, D
Pachr, M
Page, BS
Pal, SK
Pandit, Y
Panebratsev, Y
Pawlak, T
Peitzmann, T
Perevoztchikov, V
Perkins, C
Peryt, W
Phatak, SC
Pile, P
Planinic, M
Ploskon, MA
Pluta, J
Plyku, D
Poljak, N
Poskanzer, AM
Potukuchi, BVKS
Powell, CB
Prindle, D
Pruneau, C
Pruthi, NK
Pujahari, PR
Putschke, J
Qiu, H
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Rose, A
Roy, C
Ruan, L
Sahoo, R
Sakai, S
Sakrejda, I
Sakuma, T
Salur, S
Sandweiss, J
Sangaline, E
Schambach, J
Scharenberg, RP
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Selyuzhenkov, I
Seyboth, P
Shahaliev, E
Shao, M
Sharma, M
Shi, SS
Sichtermann, EP
Simon, F
Singaraju, RN
Skoby, MJ
Smirnov, N
Sorensen, P
Sowinski, J
Spinka, HM
Srivastava, B
Stanislaus, TDS
Staszak, D
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Subba, NL
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Timoshenko, S
Tlusty, D
Tokarev, M
Trainor, TA
Tram, VN
Trentalange, S
Tribble, RE
Tsai, OD
Ulery, J
Ullrich, T
Underwood, DG
Van Buren, G
van Leeuwen, M
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Wada, M
Walker, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, YF
Xie, W
Xu, H
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yepes, P
Yip, K
Yoo, IK
Yue, Q
Zawisza, M
Zbroszczyk, H
Zhan, W
Zhang, JB
Zhang, S
Zhang, WM
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, J
Zhong, C
Zhou, J
Zhou, W
Zhu, X
Zhu, YH
Zoulkarneev, R
Zoulkarneeva, Y
AF Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Alekseev, I.
Alford, J.
Anderson, B. D.
Anson, Daniel
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Barnby, L. S.
Baumgart, S.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Biritz, B.
Bland, L. C.
Bonner, B. E.
Bouchet, J.
Braidot, E.
Brandin, A. V.
Bridgeman, A.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Cai, X. Z.
Caines, H.
de la Barca Sanchez, M. Calderon
Catu, O.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, K. E.
Christie, W.
Chung, P.
Clarke, R. F.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Das, D.
Dash, S.
Leyva, A. Davila
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Derevschikov, A. A.
de Souza, R. Derradi
Didenko, L.
Djawotho, P.
Dogra, S. M.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Dunlop, J. C.
Mazumdar, M. R. Dutta
Efimov, L. G.
Elhalhuli, E.
Elnimr, M.
Engelage, J.
Eppley, G.
Erazmus, B.
Estienne, M.
Eun, L.
Evdokimov, O.
Fachini, P.
Fatemi, R.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fine, V.
Fisyak, Y.
Gagliardi, C. A.
Gangadharan, D. R.
Ganti, M. S.
Garcia-Solis, E. J.
Geromitsos, A.
Geurts, F.
Ghazikhanian, V.
Ghosh, P.
Gorbunov, Y. N.
Gordon, A.
Grebenyuk, O.
Grosnick, D.
Guertin, S. M.
Gupta, A.
Guryn, W.
Haag, B.
Hamed, A.
Han, L-X
Harris, J. W.
Hays-Wehle, J. P.
Heinz, M.
Heppelmann, S.
Hirsch, A.
Hjort, E.
Hoffman, A. M.
Hoffmann, G. W.
Hofman, D. J.
Huang, B.
Huang, H. Z.
Humanic, T. J.
Huo, L.
Igo, G.
Jacobs, P.
Jacobs, W. W.
Jena, C.
Jin, F.
Jones, C. L.
Jones, P. G.
Joseph, J.
Judd, E. G.
Kabana, S.
Kajimoto, K.
Kang, K.
Kapitan, J.
Kauder, K.
Keane, D.
Kechechyan, A.
Kettler, D.
Kikola, D. P.
Kiryluk, J.
Kisiel, A.
Kizka, V.
Klein, S. R.
Knospe, A. G.
Kocoloski, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Koroleva, L.
Korsch, W.
Kotchenda, L.
Kouchpil, V.
Kravtsov, P.
Krueger, K.
Krus, M.
Kumar, L.
Kurnadi, P.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, C-H
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, L.
Li, N.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lin, G.
Lin, X. Y.
Lindenbaum, S. J.
Lisa, M. A.
Liu, F.
Liu, H.
Liu, J.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Love, W. A.
Lu, Y.
Lukashov, E. V.
Luo, X.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Mangotra, L. K.
Manweiler, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
Matulenko, Yu. A.
McDonald, D.
McShane, T. S.
Meschanin, A.
Milner, R.
Minaev, N. G.
Mioduszewski, S.
Mischke, A.
Mitrovski, M. K.
Mohanty, B.
Mondal, M. M.
Morozov, B.
Morozov, D. A.
Munhoz, M. G.
Nandi, B. K.
Nattrass, C.
Nayak, T. K.
Nelson, J. M.
Netrakanti, P. K.
Ng, M. J.
Nogach, L. V.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Okorokov, V.
Oldag, E. W.
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.
Pile, P.
Planinic, M.
Ploskon, M. A.
Pluta, J.
Plyku, D.
Poljak, N.
Poskanzer, A. M.
Potukuchi, B. V. K. S.
Powell, C. B.
Prindle, D.
Pruneau, C.
Pruthi, N. K.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Rose, A.
Roy, C.
Ruan, L.
Sahoo, R.
Sakai, S.
Sakrejda, I.
Sakuma, T.
Salur, S.
Sandweiss, J.
Sangaline, E.
Schambach, J.
Scharenberg, R. P.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Selyuzhenkov, I.
Seyboth, P.
Shahaliev, E.
Shao, M.
Sharma, M.
Shi, S. S.
Sichtermann, E. P.
Simon, F.
Singaraju, R. N.
Skoby, M. J.
Smirnov, N.
Sorensen, P.
Sowinski, J.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Staszak, D.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Subba, N. L.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
de Toledo, A. Szanto
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Timoshenko, S.
Tlusty, D.
Tokarev, M.
Trainor, T. A.
Tram, V. N.
Trentalange, S.
Tribble, R. E.
Tsai, O. D.
Ulery, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Leeuwen, M.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Wada, M.
Walker, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xie, W.
Xu, H.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yepes, P.
Yip, K.
Yoo, I-K
Yue, Q.
Zawisza, M.
Zbroszczyk, H.
Zhan, W.
Zhang, J. B.
Zhang, S.
Zhang, W. M.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, J.
Zhong, C.
Zhou, J.
Zhou, W.
Zhu, X.
Zhu, Y. H.
Zoulkarneev, R.
Zoulkarneeva, Y.
CA STAR Collaboration
TI Measurement of the Bottom Quark Contribution to Nonphotonic Electron
Production in p plus p Collisions at root s=200 GeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID TOMOGRAPHY; MATTER
AB The contribution of B meson decays to nonphotonic electrons, which are mainly produced by the semileptonic decays of heavy-flavor mesons, in p + p collisions at root s = 200 GeV has been measured using azimuthal correlations between nonphotonic electrons and hadrons. The extracted B decay contribution is approximately 50% at a transverse momentum of p(T) >= 5 GeV/c. These measurements constrain the nuclear modification factor for electrons from B and D meson decays. The result indicates that B meson production in heavy ion collisions is also suppressed at high p(T).
C1 [Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Barnby, L. S.; Elhalhuli, E.; Jones, P. G.; Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ogawa, A.; Perevoztchikov, V.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Ng, M. J.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[de la Barca Sanchez, M. Calderon; Cebra, D.; Das, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.; Salur, S.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA.
[Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Ghazikhanian, V.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Sakai, S.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[de Souza, R. Derradi; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Betts, R. R.; Evdokimov, O.; Garcia-Solis, E. J.; Hofman, D. J.; Kauder, K.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Bielcikova, J.; Chaloupka, P.; Chung, P.; Kapitan, J.; Kouchpil, V.; Sumbera, M.; Tlusty, D.] Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic.
[Kollegger, T.; Mitrovski, M. K.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, Frankfurt, Germany.
[Dash, S.; Jena, C.; Mahapatra, D. P.; Phatak, S. C.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Sowinski, J.; Stevens, J. R.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Alekseev, I.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia.
[Bhasin, A.; Dogra, S. M.; Gupta, A.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India.
[Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Filip, P.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneev, R.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia.
[Alford, J.; Anderson, B. D.; Bouchet, J.; Joseph, J.; Keane, D.; Kumar, L.; Margetis, S.; Pandit, Y.; Subba, N. L.; Vanfossen, J. A., Jr.; Zhang, W. M.] Kent State Univ, Kent, OH 44242 USA.
[Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Qiu, H.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China.
[Ahammed, Z.; Dong, X.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Masui, H.; Matis, H. S.; Odyniec, G.; Olson, D.; Ploskon, M. A.; Poskanzer, A. M.; Powell, C. B.; Ritter, H. G.; Rose, A.; Sakrejda, I.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, X. P.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Hoffman, A. M.; Jones, C. L.; Kocoloski, A.; Leight, W.; Milner, R.; Redwine, R.; Sakuma, T.; Seele, J.; Surrow, B.; van Nieuwenhuizen, G.; Walker, M.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Tarnowsky, T.; Wang, H.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Lukashov, E. V.; Okorokov, V.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Lindenbaum, S. J.] CUNY City Coll, New York, NY 10031 USA.
[Braidot, E.; Mischke, A.; Peitzmann, T.; van Leeuwen, M.] NIKHEF, Amsterdam, Netherlands.
[Braidot, E.; Mischke, A.; Peitzmann, T.; van Leeuwen, M.] Univ Utrecht, Amsterdam, Netherlands.
[Anson, Daniel; Chajecki, Z.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India.
[Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Hirsch, A.; Konzer, J.; Li, X.; Netrakanti, P. K.; Scharenberg, R. P.; Skoby, M. J.; Srivastava, B.; Stringfellow, B.; Ulery, J.; Wang, F.; Wang, Q.; Xie, W.] Purdue Univ, W Lafayette, IN 47907 USA.
[Choi, K. E.; Lee, C-H; Yoo, I-K] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Bonner, B. E.; Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Yepes, P.; Zhou, J.] Rice Univ, Houston, TX 77251 USA.
[Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Huang, B.; Li, C.; Lu, Y.; Luo, X.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Li, X.; Xu, Q. H.; Zhou, W.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L-X; Jin, F.; Li, W.; Ma, G. L.; Ma, Y. G.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Erazmus, B.; Estienne, M.; Geromitsos, A.; 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.; Huo, L.; Mioduszewski, S.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Leyva, A. Davila; Hoffmann, G. W.; Kajimoto, K.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Yue, Q.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Mondal, M. M.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.; Viyogi, Y. P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.; Trainor, T. A.] Univ Washington, Seattle, WA 98195 USA.
[Bellwied, R.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Timmins, A. R.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Chen, J. Y.; Li, N.; Li, Z. M.; Lin, X. Y.; Liu, F.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Baumgart, S.; Bruna, E.; Caines, H.; Catu, O.; Chikanian, A.; 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 Aggarwal, MM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Yang, Yanyun/B-9485-2014; Bielcikova, Jana/G-9342-2014; Mischke,
Andre/D-3614-2011; Takahashi, Jun/B-2946-2012; Planinic,
Mirko/E-8085-2012; Yoo, In-Kwon/J-6222-2012; Peitzmann,
Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Yip, Kin/D-6860-2013;
Xue, Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Xu,
Wenqin/H-7553-2014; Barnby, Lee/G-2135-2010; Alekseev, Igor/J-8070-2014;
Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Dogra,
Sunil /B-5330-2013; Chaloupka, Petr/E-5965-2012; Huang,
Bingchu/H-6343-2015; Nattrass, Christine/J-6752-2016; Derradi de Souza,
Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Svirida,
Dmitry/R-4909-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017;
Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013
OI Yang, Yanyun/0000-0002-5982-1706; Takahashi, Jun/0000-0002-4091-1779;
Peitzmann, Thomas/0000-0002-7116-899X; Yip, Kin/0000-0002-8576-4311;
Xue, Liang/0000-0002-2321-9019; Pandit, Yadav/0000-0003-2809-7943; Xu,
Wenqin/0000-0002-5976-4991; Barnby, Lee/0000-0001-7357-9904; Alekseev,
Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Huang,
Bingchu/0000-0002-3253-3210; 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
FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Open Science
Grid consortium; Offices of NP and HEP within the U.S. DOE Office of
Science; U.S. NSF; Sloan Foundation; DFG, Germany; CNRS/IN2P3; STFC;
EPSRC of the United Kingdom; FAPESP; CNPq of Brazil; Ministry of Ed. and
Sci. of the Russian Federation; NNSFC; CAS; MoST; MoE of China; GA; MSMT
of the Czech Republic; FOM; NWO of the Netherlands; DAE; DST; CSIR of
India; Polish Ministry of Sci. and Higher Ed.; Korea Research
Foundation; Ministry of Sci., Ed. and Sports of the Rep. Of Croatia;
Russian Ministry of Sci. and Tech; RosAtom of Russia
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the Offices of NP and HEP
within the U.S. DOE Office of Science, the U.S. NSF, the Sloan
Foundation, the DFG cluster of excellence "Origin and Structure of the
Universe" of Germany, CNRS/IN2P3, STFC and EPSRC of the United Kingdom,
FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian
Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech
Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India,
Polish Ministry of Sci. and Higher Ed., Korea Research Foundation,
Ministry of Sci., Ed. and Sports of the Rep. Of Croatia, Russian
Ministry of Sci. and Tech, and RosAtom of Russia.
NR 20
TC 48
Z9 48
U1 1
U2 17
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 NOV 12
PY 2010
VL 105
IS 20
AR 202301
DI 10.1103/PhysRevLett.105.202301
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 679FU
UT WOS:000284147800003
PM 21231222
ER
PT J
AU Bernstein, N
Kulp, JL
Cato, MA
Clark, TD
AF Bernstein, Noam
Kulp, John L., III
Cato, Michael A., Jr.
Clark, Thomas D.
TI Simulations of Nanocylinders Self-Assembled from Cyclic beta-Tripeptides
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID ORGANIC NANOTUBES; AB-INITIO; PEPTIDE; DENSITY; APPROXIMATION;
TETRAPEPTIDE; ARCHITECTURE; EXCHANGE; LIGANDS; ACIDS
AB This paper examines the self-assembly of cyclic beta-tripeptides using density functional theory On the basis of literature precedents, those cyclic. peptides were expected to sell-assemble into cylindrical structures by stacking through backbone-backbone hydrogen bonding Our calculations show that such stacking is energetically favorable. that the. association energy per cyclic peptide decreases (becomes more favorable), and that the overall macrodipole moment of the cylindrical assembly increases with the number or stacked rings, for up to eight rings For a Stucture in which two peptide ring units are joined through a single side chain-side chain covalent linker, the association energy between the two rings is favorable, albeit less so than for the unlinked rings Significantly the association energy in the dimers is only weakly dependent on the length (above a certain minimum) and conformation of the covalent linkers Finally as a plausible tome for controlling assembly/disassembly of nanocylinders, we show that, lot it pair of rings. each beating a single ammo-functionalized side chain, protonation of the amino group results in a strongly positive (unfavorable) association energy between the two rings.
C1 [Bernstein, Noam; Kulp, John L., III; Clark, Thomas D.] USN, Res Lab, Washington, DC 20375 USA.
[Cato, Michael A., Jr.] Jackson State Univ, Dept Chem, Jackson, MS 39217 USA.
[Cato, Michael A., Jr.] Jackson State Univ, Interdisciplinary Ctr Nanotox, Jackson, MS 39217 USA.
RP Bernstein, N (reprint author), USN, Res Lab, Washington, DC 20375 USA.
FU Office of Naval Research; Air Force Research Laboratory High Perfromance
Computing Center
FX This work was supported by the Office of Naval Research and The Naval
Research Laboratory's Institute for Nanoscience Computations were
carried out at the Air Force Research Laboratory High Perfromance
Computing Center. the Mississippi Center for Supercomputing Research
(Jackson State University). and the Wroclaw Centre for Networking and
Supercomputing (Wroclaw University of Techology. Poland). We thank
Dmitri Petrovykh for helpful discussions
NR 44
TC 1
Z9 1
U1 0
U2 4
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 NOV 11
PY 2010
VL 114
IS 44
BP 11948
EP 11952
DI 10.1021/jp103447w
PG 5
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 673ZR
UT WOS:000283703200011
PM 20961136
ER
PT J
AU Bartnik, AC
Efros, AL
Koh, WK
Murray, CB
Wise, FW
AF Bartnik, A. C.
Efros, Al. L.
Koh, W. -K.
Murray, C. B.
Wise, F. W.
TI Electronic states and optical properties of PbSe nanorods and nanowires
SO PHYSICAL REVIEW B
LA English
DT Article
ID QUANTUM DOTS; SHAPE CONTROL; SEMICONDUCTOR NANOWIRES; INTERBAND
ABSORPTION; ORIENTED ATTACHMENT; MAGNETIC-FIELD; NANOCRYSTALS;
CONFINEMENT; WIRES; SPECTROSCOPY
AB A theory of the electronic-structure and excitonic absorption spectra of PbS and PbSe nanowires and nanorods in the framework of a four-band effective-mass model is presented. Calculations conducted for PbSe show that dielectric contrast dramatically strengthens the exciton binding in narrow nanowires and nanorods. However, the self-interaction energies of the electron and hole nearly cancel the Coulomb binding, and as a result the optical absorption spectra are practically unaffected by the strong dielectric contrast between PbSe and the surrounding medium. Measurements of the size-dependent absorption spectra of colloidal PbSe nanorods are also presented. Using room-temperature energy-band parameters extracted from the optical spectra of spherical PbSe nanocrystals, the theory provides good quantitative agreement with the measured spectra.
C1 [Bartnik, A. C.; Wise, F. W.] Cornell Univ, Dept Appl Phys, Ithaca, NY 14853 USA.
[Efros, Al. L.] USN, Res Lab, Washington, DC 20375 USA.
[Koh, W. -K.; Murray, C. B.] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA.
[Murray, C. B.] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
RP Bartnik, AC (reprint author), Cornell Univ, Dept Appl Phys, Ithaca, NY 14853 USA.
RI Koh, Weon-kyu/G-8623-2013;
OI Koh, Weon-kyu/0000-0002-6913-4184
FU Cornell Center for Nanoscale Systems (CNS) through National Science
Foundation [EEC-0646547]; National Science Foundation [DMR 0520404,
DMS-0935165]; Nano/Bio Interface Center through the National Science
Foundation (NSEC) [DMR08-32802]
FX A. C. B. thanks Jun Yang for assistance with numerical optimizations and
for enlightening discussions. This work was supported by the Cornell
Center for Nanoscale Systems (CNS) through National Science Foundation
under Grant No. EEC-0646547 and in part by the Cornell Center for
Materials Research (CCMR) with funding from the Materials Research
Science and Engineering Center program of the National Science
Foundation (cooperative Agreement No. DMR 0520404). Al.L.E. thanks the
U.S. Office of Naval Research (ONR) and the U.S. Department of Energy
(DOE). W.-K.K. and C. B. M. acknowledge financial support from the NSF
under Grant No. DMS-0935165. This research was partially supported by
the Nano/Bio Interface Center through the National Science Foundation
(NSEC Grant No. DMR08-32802) with a seed grant that initiated the
investigation of the synthesis of the nanorods.
NR 64
TC 73
Z9 74
U1 1
U2 57
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD NOV 11
PY 2010
VL 82
IS 19
AR 195313
DI 10.1103/PhysRevB.82.195313
PG 16
WC Physics, Condensed Matter
SC Physics
GA 678PC
UT WOS:000284090600004
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Atwood, WB
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Bhat, PN
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Brandt, TJ
Bregeon, J
Brez, A
Briggs, MS
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Chen, AW
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Connaughton, V
Conrad, J
Costamante, L
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Dingus, BL
Silva, EDE
Drell, PS
Dubois, R
Favuzzi, C
Fegan, SJ
Finke, J
Fortin, P
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giglietto, N
Gilmore, RC
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Granot, J
Greiner, J
Grenier, IA
Grove, JE
Guiriec, S
Gustafsson, M
Hadasch, D
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Knodlseder, J
Kocevski, D
Kuss, M
Lande, J
Latronico, L
Lee, SH
Garde, ML
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, N
McConville, W
McEnery, JE
McGlynn, S
Mehault, J
Meszaros, P
Michelson, PF
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Moretti, E
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohno, M
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Primack, JR
Raino, S
Rando, R
Razzano, M
Razzaque, S
Reimer, A
Reimer, O
Reyes, LC
Ripken, J
Ritz, S
Romani, RW
Roth, M
Sadrozinski, HFW
Sanchez, D
Sander, A
Scargle, JD
Schalk, TL
Sgro, C
Shaw, MS
Siskind, EJ
Smith, PD
Spandre, G
Spinelli, P
Stecker, FW
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Vitale, V
von Kienlin, A
Waite, AP
Wang, P
Wilson-Hodge, C
Winer, BL
Wood, KS
Yamazaki, R
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bhat, P. N.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brez, A.
Briggs, M. S.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, O.
Charles, E.
Chekhtman, A.
Chen, A. W.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Connaughton, V.
Conrad, J.
Costamante, L.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
Dingus, B. L.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Favuzzi, C.
Fegan, S. J.
Finke, J.
Fortin, P.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Gilmore, R. C.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Granot, J.
Greiner, J.
Grenier, I. A.
Grove, J. E.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Knoedlseder, J.
Kocevski, D.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S-H
Garde, M. Llena
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, N.
McConville, W.
McEnery, J. E.
McGlynn, S.
Mehault, J.
Meszaros, P.
Michelson, P. F.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Moretti, E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohno, M.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Primack, J. R.
Raino, S.
Rando, R.
Razzano, M.
Razzaque, S.
Reimer, A.
Reimer, O.
Reyes, L. C.
Ripken, J.
Ritz, S.
Romani, R. W.
Roth, M.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Scargle, J. D.
Schalk, T. L.
Sgro, C.
Shaw, M. S.
Siskind, E. J.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stecker, F. W.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
von Kienlin, A.
Waite, A. P.
Wang, P.
Wilson-Hodge, C.
Winer, B. L.
Wood, K. S.
Yamazaki, R.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI FERMI LARGE AREA TELESCOPE CONSTRAINTS ON THE GAMMA-RAY OPACITY OF THE
UNIVERSE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE diffuse radiation; dust, extinction; gamma rays: general
ID EXTRAGALACTIC BACKGROUND LIGHT; INTERGALACTIC MAGNETIC-FIELDS; ALL-SKY
SURVEY; TEV BLAZARS; DETECTED BLAZARS; LIKELIHOOD RATIO;
SPACE-TELESCOPE; GALAXY COUNTS; GEV EMISSION; UPPER LIMITS
AB The extragalactic background light (EBL) includes photons with wavelengths from ultraviolet to infrared, which are effective at attenuating gamma rays with energy above similar to 10 GeV during propagation from sources at cosmological distances. This results in a redshift- and energy-dependent attenuation of the gamma-ray flux of extragalactic sources such as blazars and gamma-ray bursts (GRBs). The Large Area Telescope on board Fermi detects a sample of gamma-ray blazars with redshift up to z similar to 3, and GRBs with redshift up to z similar to 4.3. Using photons above 10 GeV collected by Fermi over more than one year of observations for these sources, we investigate the effect of gamma-ray flux attenuation by the EBL. We place upper limits on the gamma-ray opacity of the universe at various energies and redshifts and compare this with predictions from well-known EBL models. We find that an EBL intensity in the optical-ultraviolet wavelengths as great as predicted by the "baseline" model of Stecker et al. can be ruled out with high confidence.
C1 [Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Costamante, L.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocevski, D.; Lande, J.; Lee, S-H; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Costamante, L.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocevski, D.; Lande, J.; Lee, S-H; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Finke, J.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Razzaque, S.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.; Finke, J.; Razzaque, S.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Atwood, W. B.; Gilmore, R. C.; Johnson, R. P.; Primack, J. R.; Ritz, S.; Sadrozinski, H. F. -W.; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Gilmore, R. C.; Johnson, R. P.; Primack, J. R.; Ritz, S.; Sadrozinski, H. F. -W.; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, Lab AIM, CEA,IRFU,CNRS,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.; Moretti, E.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.; Moretti, E.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Buson, S.; Gustafsson, M.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Brandt, T. J.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA.
[Bhat, P. N.; Briggs, M. S.; Connaughton, V.; Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.; Chen, A. W.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Gasparrini, D.; Giommi, P.] Sci Data Ctr, ASI, I-00044 Rome, Italy.
[Celik, O.; Gehrels, N.; Hays, E.; McConville, W.; McEnery, J. E.; Moiseev, A. A.; Stecker, F. W.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, O.; Moiseev, A. A.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, O.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, O.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Garde, M. Llena; McGlynn, S.; Ripken, J.; Yang, Z.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Grp Coll Udine, Sez Trieste, I-33100 Udine, Italy.
[Dingus, B. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Granot, J.] Univ Hertfordshire, Sci & Technol Res Inst, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England.
[Greiner, J.; Orlando, E.; von Kienlin, A.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Lott, B.] Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Lott, B.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[McGlynn, S.; Ylinen, T.] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Meszaros, P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohno, M.; Okumura, A.; Ozaki, M.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reyes, L. C.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wilson-Hodge, C.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
[Yamazaki, R.] Aoyama Gakuin Univ, Dept Math & Phys, Kanagawa 2525258, Japan.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Bouvier, A (reprint author), Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
EM bouvier@stanford.edu; chen@iasf-milano.inaf.it; silvia.raino@ba.infn.it;
md.razzaque.ctr.bg@nrl.navy.mil; anita.reimer@uibk.ac.at;
lreyes@kicp.uchicago.edu
RI Thompson, David/D-2939-2012; Stecker, Floyd/D-3169-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; giglietto,
nicola/I-8951-2012; Reimer, Olaf/A-3117-2013; Tosti, Gino/E-9976-2013;
Ozaki, Masanobu/K-1165-2013; Rando, Riccardo/M-7179-2013; Hays,
Elizabeth/D-3257-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; Johnson, Neil/G-3309-2014; Funk,
Stefan/B-7629-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Loparco, Francesco/O-8847-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
OI Thompson, David/0000-0001-5217-9135; giglietto,
nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553; Funk,
Stefan/0000-0002-2012-0080; Johannesson, Gudlaugur/0000-0003-1458-7036;
Gargano, Fabio/0000-0002-5055-6395; Loparco,
Francesco/0000-0002-1173-5673; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Dingus, Brenda/0000-0001-8451-7450; giommi,
paolo/0000-0002-2265-5003; De Angelis, Alessandro/0000-0002-3288-2517;
Caraveo, Patrizia/0000-0003-2478-8018; Sgro',
Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864; Rando,
Riccardo/0000-0001-6992-818X; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Giroletti, Marcello/0000-0002-8657-8852;
Moretti, Elena/0000-0001-5477-9097; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU Kavli Institute for Cosmological Physics at the University of Chicago
[NSF PHY-0114422, NSF PHY-0551142]; Marie Curie IRG [248037]
FX The Fermi-LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France. The Fermi
GBM collaboration acknowledges support for GBM development, operations
and data analysis from NASA in the US and BMWi/DLR in Germany. L.R.C.
acknowledges support by the Kavli Institute for Cosmological Physics at
the University of Chicago through grants NSF PHY-0114422 and NSF
PHY-0551142 and an endowment from the Kavli Foundation and its founder
Fred Kavli. A. R. acknowledges support by Marie Curie IRG grant 248037
within the FP7 Program. Furthermore, helpful comments from the referee
are acknowledged.
NR 83
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U1 3
U2 11
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 NOV 10
PY 2010
VL 723
IS 2
BP 1082
EP 1096
DI 10.1088/0004-637X/723/2/1082
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678QA
UT WOS:000284093700011
ER
PT J
AU Zhu, JA
Krivorotov, IN
Halterman, K
Valls, OT
AF Zhu, Jian
Krivorotov, Ilya N.
Halterman, Klaus
Valls, Oriol T.
TI Angular Dependence of the Superconducting Transition Temperature in
Ferromagnet-Superconductor-Ferromagnet Trilayers
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ODD TRIPLET SUPERCONDUCTIVITY
AB The superconducting transition temperature T-c of a ferromagnet (F)-superconductor (S)-ferromagnet trilayer depends on the mutual orientation of the magnetic moments of the F layers. This effect has been previously observed in F/S/F systems as a T-c difference between parallel and antiparallel configurations of the F layers. Here we report measurements of T-c in CuNi/Nb/CuNi trilayers as a function of the angle between the magnetic moments of the CuNi ferromagnets. The observed angular dependence of T-c is in qualitative agreement with a F/S proximity theory that accounts for the odd triplet component of the condensate predicted to arise for noncollinear orientation of the magnetic moments of the F layers.
C1 [Zhu, Jian; Krivorotov, Ilya N.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
[Halterman, Klaus] USN, Res & Intelligence Dept, Div Phys, Air Warfare Ctr, China Lake, CA 93555 USA.
[Valls, Oriol T.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Valls, Oriol T.] Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN 55455 USA.
RP Zhu, JA (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
RI Zhu, Jian/C-3248-2012; Halterman, Klaus/G-3826-2012;
OI Halterman, Klaus/0000-0002-6355-3134
FU NSF [DMR-0748810, ECCS-1002358]; ONR; DOD HPCMP; HPC
FX This work was supported by NSF Grants No. DMR-0748810 and No.
ECCS-1002358. K. H. is supported in part by ONR and by a grant of HPC
resources as part of the DOD HPCMP.
NR 28
TC 36
Z9 36
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD NOV 10
PY 2010
VL 105
IS 20
AR 207002
DI 10.1103/PhysRevLett.105.207002
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 678DP
UT WOS:000284052700013
PM 21231256
ER
PT J
AU Crum-Cianflone, NF
Roediger, M
Hullsiek, KH
Ganesan, A
Landrum, M
Weintrob, A
Agan, B
Medina, S
Rahkola, J
Hale, B
Janoff, EN
AF Crum-Cianflone, Nancy F.
Roediger, Mollie
Hullsiek, Kathy Huppler
Ganesan, Anuradha
Landrum, Michael
Weintrob, Amy
Agan, Brian
Medina, Sheila
Rahkola, Jeremy
Hale, Braden
Janoff, Edward N.
CA Infect Dis Clinical Res Program HI
TI The association of ethnicity with antibody responses to pneumococcal
vaccination among adults with HIV infection
SO VACCINE
LA English
DT Article
DE Ethnicity; Antibodies; Pneumococcal vaccination; HIV
ID IMMUNODEFICIENCY-VIRUS-INFECTION; HIV-1-INFECTED UGANDAN ADULTS;
POLYSACCHARIDE VACCINE; RISK-FACTORS; RESISTANCE PATTERNS;
CLINICAL-FEATURES; CHARLESTON COUNTY; CONJUGATE VACCINE; SOUTH-CAROLINA;
DISEASE
AB Ethnicity may be associated with the incidence of pneumococcal infections and the frequency of protective vaccine responses. Earlier studies have suggested that HIV-infected persons of black ethnicity develop less robust immune responses to pneumococcal vaccination that may relate to their higher incidence of invasive disease. We evaluated the association of ethnicity with capsule-specific antibody responses to pneumococcal revaccination, with either the pneumococcal conjugate (PCV) or polysaccharide (PPV) vaccines among 188 HIV-infected adults. The proportion of the 77 African Americans (AA) and 111 Caucasians with comparable virologic and immunologic parameters who achieved a positive immune response (>= 2-fold rise in capsule-specific IgG from baseline with post-vaccination value >= 1 mu g/mL for >= 2 of 4 serotypes) at day 60 after revaccination was similar (43% vs. 49%, respectively, p = 0.65). Results were also similar when vaccine types (PPV and PCV) were examined separately. Mean changes in log(10) transformed IgG levels from baseline to days 60 and 180 post-vaccination were also not significantly different between AA and Caucasians. In summary, in this ethnically diverse cohort with equal access to care, we did not observe differential antibody responses between AA and Caucasian HIV-infected adults after pneumococcal revaccination. Published by Elsevier Ltd.
C1 [Crum-Cianflone, Nancy F.] USN, San Diego Med Ctr, Clin Invest Dept KCA, San Diego, CA 92134 USA.
[Crum-Cianflone, Nancy F.; Roediger, Mollie; Hullsiek, Kathy Huppler; Ganesan, Anuradha; Landrum, Michael; Weintrob, Amy; Agan, Brian; Medina, Sheila; Hale, Braden] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Roediger, Mollie; Hullsiek, Kathy Huppler] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Bethesda, MD USA.
[Landrum, Michael] San Antonio Mil Med Ctr, San Antonio, TX USA.
[Weintrob, Amy] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Rahkola, Jeremy; Janoff, Edward N.] Univ Colorado, Mucosal & Vaccine Res Program Colorado MAVRC, Denver, CO 80202 USA.
[Hale, Braden] USN, Hlth Res Ctr, San Diego, CA 92134 USA.
[Rahkola, Jeremy; Janoff, Edward N.] Denver Vet Affairs Med Ctr, Denver, CO USA.
RP Crum-Cianflone, NF (reprint author), USN, San Diego Med Ctr, Clin Invest Dept KCA, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil
OI Agan, Brian/0000-0002-5114-1669
FU Department of Defense (DoD) through the Uniformed Services University of
the Health Sciences [IDCRP RV-150]; National Institute of Allergy and
Infectious Diseases, National Institutes of Health (NIH) [Y1-AI-5072];
Veterans Affairs Research Service
FX Support for this work (IDCRP RV-150) was provided by the Infectious
Disease Clinical Research Program (IDCRP), a Department of Defense (DoD)
program executed through the Uniformed Services University of the Health
Sciences. This project has been funded in whole, or in part, with
federal funds from the National Institute of Allergy and Infectious
Diseases, National Institutes of Health (NIH), under Inter-Agency
Agreement Y1-AI-5072. Additional support was obtained from the Veterans
Affairs Research Service.
NR 27
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U1 0
U2 1
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD NOV 10
PY 2010
VL 28
IS 48
BP 7583
EP 7588
DI 10.1016/j.vaccine.2010.09.056
PG 6
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 696HN
UT WOS:000285432600002
PM 20887830
ER
PT J
AU Kaganovich, D
Helle, MH
Gordon, DF
Ting, A
AF Kaganovich, D.
Helle, M. H.
Gordon, D. F.
Ting, A.
TI Measurements of colliding shock wave and supersonic gas flow
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB The collision between a laser generated shock wave and a supersonic flow from a gas jet was studied using pump-probe Schlieren shadowgraphy. The velocity of a gas escaping into vacuum from a high pressure gas jet nozzle was measured and verified in simulation. Time resolved tracking of the shock wave provided critical information about the gas jet vertical velocity and horizontal gas density profile. The measured velocity of the diatomic gas jet was found to be close to the theoretical maximum escape velocity of the gas released into vacuum. Modification of the hemispherical shock wave structure by the supersonic flow was minimal. However, the propagation of the shock wave was observed to be substantially effected by the gas flow. (C) 2010 American Institute of Physics. [doi:10.1063/1.3511329]
C1 [Kaganovich, D.; Helle, M. H.; Gordon, D. F.; Ting, A.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Kaganovich, D (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM dmitri.kaganovich@nrl.navy.mil
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU Department of Energy; Office of Naval Research
FX This work was supported by the Department of Energy and the Office of
Naval Research.
NR 7
TC 3
Z9 3
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 NOV 8
PY 2010
VL 97
IS 19
AR 191501
DI 10.1063/1.3511329
PG 3
WC Physics, Applied
SC Physics
GA 679OE
UT WOS:000284169900016
ER
PT J
AU Tadjer, MJ
Feygelson, TI
Hobart, KD
Caldwell, JD
Anderson, TJ
Butler, JE
Eddy, CR
Gaskill, DK
Lew, KK
VanMil, BL
Myers-Ward, RL
Kub, FJ
Sollenberger, G
Brillson, L
AF Tadjer, Marko J.
Feygelson, Tatyana I.
Hobart, Karl D.
Caldwell, Joshua D.
Anderson, Travis J.
Butler, James E.
Eddy, Charles R., Jr.
Gaskill, D. Kurt
Lew, K. K.
VanMil, Brenda L.
Myers-Ward, Rachael L.
Kub, Fritz J.
Sollenberger, Gregory
Brillson, Leonard
TI On the high curvature coefficient rectifying behavior of nanocrystalline
diamond heterojunctions to 4H-SiC
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID BACKWARD DIODES; FILMS; CATHODOLUMINESCENCE; NANODIAMOND; DETECTORS;
SURFACE; TUNNEL; GROWTH; CVD
AB Heterojunctions of p(+) B-doped nanocrystalline diamond (NCD) to n(-) 4H-SiC were studied by electrical and cathodoluminescence (CL) methods. Current rectification at 30 degrees C had a curvature coefficient gamma(0) of 42.1 V(-1) at zero bias, gamma(max) of 105.35 V(-1) at 0.2 V, and a reverse current of <10 nA/cm(2). The NCD sheet resistance decreased from 4.1 x 10(11) to 403.56 Omega/sq. as the carrier density N(s) was increased from 3.5 x 10(5) to 1.5 x 10(16) cm(-2) by B(2)H(6) doping. The 348 cm(2)/V-s mobility of the B-free NCD films was comparable to that of single crystal diamond. CL data revealed traps 0.6-0.8 eV from the NCD EV edge. (C) 2010 American Institute of Physics. [doi:10.1063/1.3515858]
C1 [Tadjer, Marko J.] Univ Maryland, College Pk, MD 20742 USA.
[Feygelson, Tatyana I.] SAIC Inc, Washington, DC 20003 USA.
[Hobart, Karl D.; Caldwell, Joshua D.; Anderson, Travis J.; Butler, James E.; Eddy, Charles R., Jr.; Gaskill, D. Kurt; Lew, K. K.; VanMil, Brenda L.; Myers-Ward, Rachael L.; Kub, Fritz J.] USN, Res Lab, Washington, DC 20375 USA.
[Sollenberger, Gregory; Brillson, Leonard] Ohio State Univ, Columbus, OH 43210 USA.
RP Tadjer, MJ (reprint author), Univ Maryland, College Pk, MD 20742 USA.
EM mtadjer@umd.edu
RI Caldwell, Joshua/B-3253-2008; Butler, James/B-7965-2008
OI Caldwell, Joshua/0000-0003-0374-2168; Butler, James/0000-0002-4794-7176
FU ASEE
FX M.J.T. is sincerely grateful to Dr. Martin Peckerar and Dr. John
Melngailis (University of Maryland) for device physics discussions. Milt
Rebbert and Dr. Eugene Imhoff (NRL) were instrumental in sample
preparation. Financial support for J.DC. K.K.L., R.L.M-W. and B. L. V.
was partially provided by the ASEE.
NR 31
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Z9 4
U1 1
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD NOV 8
PY 2010
VL 97
IS 19
AR 193510
DI 10.1063/1.3515858
PG 3
WC Physics, Applied
SC Physics
GA 679OE
UT WOS:000284169900083
ER
PT J
AU Cunningham, PD
Hayden, LM
AF Cunningham, Paul D.
Hayden, L. Michael
TI Optical properties of DAST in the THz range
SO OPTICS EXPRESS
LA English
DT Article
ID TERAHERTZ-WAVE GENERATION; ORGANIC-CRYSTAL; LASER; RECTIFICATION;
SPECTROSCOPY; PULSES; AIR
AB We report the far-infrared properties of the organic crystal DAST, a popular terahertz emitter, from 0.6 - 12 THz through use of a THz spectrometer incorporating air-plasma THz generation and electro-optic (EO) sampling in a poled EO polymer. We identify absorption features at 1.1, 3.1, 5.2, 7.1, 8.4, 11, and 12.3 THz and at 1.1, 1.3, 1.6, 2.2, 3, 5.2, 7.2, 9.6 and 11.7 THz for a-axis and b-axis polarized THz radiation respectively. These results allow for more accurate prediction of the optimum crystal thickness for broadband THz emission via optical rectification and difference frequency generation. (C) 2010 Optical Society of America
C1 [Cunningham, Paul D.; Hayden, L. Michael] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
RP Cunningham, PD (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM paul.cunningham.ctr@nrl.navy.mil; hayden@umbc.edu
FU National Science Foundation [DMR 0120967]; Air Force Office of
Scientific Research [FA 9550-07-1-0122]
FX This material is based upon work supported by the STC program of the
National Science Foundation No. DMR 0120967 and a grant from the Air
Force Office of Scientific Research No. FA 9550-07-1-0122.
NR 25
TC 26
Z9 27
U1 4
U2 30
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 NOV 8
PY 2010
VL 18
IS 23
BP 23620
EP 23625
DI 10.1364/OE.18.023620
PG 6
WC Optics
SC Optics
GA 676TG
UT WOS:000283940900031
PM 21164706
ER
PT J
AU Lu, Q
Collins, GE
AF Lu, Qin
Collins, Greg E.
TI Lab on a chip packing of submicron particles for high performance EOF
pumping
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE Packed bed microchannel; EOF pump; Silica beads; High pressure; Lab on a
chip
ID CAPILLARY LIQUID-CHROMATOGRAPHY; ELECTROOSMOTIC PUMP;
ELECTROCHROMATOGRAPHY; FABRICATION; MICROCHIP; COLUMNS; SYSTEMS
AB The packing of submicrometer sized silica beads inside a microchannel was enabled by a novel method which avoids the complication and limitations of generating a frit using conventional approaches and the restriction of flow using a submicrometer sized weir A micrometer sized weir and two short columns of 5 mu m and 800 nm silica beads packed in succession behind the weir together functioned as a high pressure frit to allow the construction of a primary packed bed of 390 nm silica beads This packed bed microchannel was tested as an EOF pump wherein it exhibited superior performance with regards to pressure tolerance i e sustaining good flow rate under extremely high back pressure and maximal pressure generation Under a modest applied electric field strength of 150 V/cm the flow rate against a back pressure of 1200 psi (similar to 83 MPa) was 40 nL/min and the maximal pressure reached 1470 psi (similar to 10 MPa) This work has demonstrated that it is possible to create a high performance packed bed microchannel EOF pump using nanometer sized silica beads as long as proper care is taken during the packing process to minimize the undesirable mixing of two different sized particles at the boundaries between particle segments and to maximize the packing density throughout the entire packed bed Published by Elsevier B V
C1 [Lu, Qin; Collins, Greg E.] USN, Res Lab, SW Chem Div, Washington, DC 20375 USA.
RP Collins, GE (reprint author), USN, Res Lab, SW Chem Div, 4555 Overlook Ave,Code 6112, Washington, DC 20375 USA.
FU Office of Naval Research (ONR) through the Naval Research Laboratory
(NRL)
FX The authors would like to thank the Office of Naval Research (ONR) for
funding support of this effort through the Naval Research Laboratory
(NRL)
NR 16
TC 5
Z9 5
U1 1
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 NOV 5
PY 2010
VL 1217
IS 45
BP 7153
EP 7157
DI 10.1016/j.chroma.2010.09.009
PG 5
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 677EX
UT WOS:000283973000019
PM 20926092
ER
PT J
AU Sorooshian, A
Murphy, SM
Hersey, S
Bahreini, R
Jonsson, H
Flagan, RC
Seinfeld, JH
AF Sorooshian, Armin
Murphy, Shane M.
Hersey, Scott
Bahreini, Roya
Jonsson, Haflidi
Flagan, Richard C.
Seinfeld, John H.
TI Constraining the contribution of organic acids and AMS m/z 44 to the
organic aerosol budget: On the importance of meteorology, aerosol
hygroscopicity, and region
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID MASS-SPECTROMETER; FOG DROPLETS; TOF-AMS; DASH-SP; SECONDARY; SIZE;
CLOUD; ATMOSPHERE; RESOLUTION; PARTICLES
AB Airborne measurements in regions of varying meteorology and pollution are used to quantify the contribution of organic acids and a mass spectral marker for oxygenated aerosols, m/z 44, to the total organic aerosol budget. Organic acids and m/z 44 separately are shown to exhibit their highest organic mass fractions in the vicinity of clouds. The contribution of such oxygenated species is shown to increase as a function of relative humidity, aerosol hygroscopicity (and decreasing organic mass fraction), and is typically greater off the California coast versus the continental atmospheres studied. Reasons include more efficient chemistry and partitioning of organic acid precursors with increasing water in the reaction medium, and high aqueous-phase processing times in boundary layers with higher cloud volume fractions. These results highlight the importance of secondary organic aerosol formation in both wet aerosols and cloud droplets. Citation: Sorooshian, A., S. M. Murphy, S. Hersey, R. Bahreini, H. Jonsson, R. C. Flagan, and J. H. Seinfeld (2010), Constraining the contribution of organic acids and AMS m/z 44 to the organic aerosol budget: On the importance of meteorology, aerosol hygroscopicity, and region, Geophys. Res. Lett., 37, L21807, doi: 10.1029/2010GL044951.
C1 [Sorooshian, Armin] Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA.
[Sorooshian, Armin] Univ Arizona, Dept Atmospher Sci, Tucson, AZ 85721 USA.
[Murphy, Shane M.; Bahreini, Roya] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA.
[Hersey, Scott; Flagan, Richard C.; Seinfeld, John H.] CALTECH, Dept Environm Sci & Engn, Pasadena, CA 91125 USA.
[Hersey, Scott; Flagan, Richard C.; Seinfeld, John H.] CALTECH, Dept Chem Engn, Pasadena, CA 91125 USA.
[Jonsson, Haflidi] USN, Ctr Interdisciplinary Remotely Piloted Aircraft S, Postgrad Sch, Monterey, CA 93933 USA.
RP Sorooshian, A (reprint author), Univ Arizona, Dept Chem & Environm Engn, POB 210011, Tucson, AZ 85721 USA.
EM armin@email.arizona.edu
RI Manager, CSD Publications/B-2789-2015;
OI Sorooshian, Armin/0000-0002-2243-2264
FU Office of Naval Research [N00014-10-1-0811]; NASA; NRC; NOAA
[NA06OAR4310082]; ONR [N00014-04-1-0118]; NSF [ATM-0340832]
FX AS acknowledges support from an Office of Naval Research YIP award
(N00014-10-1-0811). SMM acknowledges a NASA Earth and Space Sciences
Fellowship and a NRC Postdoctoral Fellowship. The aircraft measurements
were supported by NOAA grant NA06OAR4310082, ONR grant N00014-04-1-0118,
and NSF grant ATM-0340832. The authors acknowledge Barbara Ervens for
helpful discussions.
NR 28
TC 38
Z9 39
U1 2
U2 12
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD NOV 4
PY 2010
VL 37
AR L21807
DI 10.1029/2010GL044951
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 676TQ
UT WOS:000283941900003
ER
PT J
AU DeLand, MT
Shettle, EP
Levelt, PF
Kowalewski, MG
AF DeLand, Matthew T.
Shettle, Eric P.
Levelt, Pieternel F.
Kowalewski, Matthew G.
TI Polar mesospheric clouds (PMCs) observed by the Ozone Monitoring
Instrument (OMI) on Aura
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SOLAR BACKSCATTER ULTRAVIOLET; CALIBRATION; SATELLITE; ICE
AB Backscattered ultraviolet (BUV) instruments designed for measuring stratospheric ozone profiles have proven to be robust tools for observing polar mesospheric clouds (PMCs). These measurements are available for more than 30 years and have been used to demonstrate the existence of long-term variations in PMC occurrence frequency and brightness. The Ozone Monitoring Instrument (OMI) on the EOS Aura satellite provides new and improved capabilities for PMC characterization. OMI uses smaller pixels than previous BUV instruments, which increases its ability to identify PMCs and discern more spatial structure, and its wide cross-track viewing swath provides full polar coverage up to 90 latitude every day in both hemispheres. This cross-track coverage allows the evolution of PMC regions to be followed over several consecutive orbits. Localized PMC variations determined from OMI measurements are consistent with coincident Solar Backscatter Ultraviolet model 2 (SBUV/2) measurements. Nine seasons of PMC observations from OMI are now available and clearly demonstrate the advantages of these measurements for PMC analysis.
C1 [DeLand, Matthew T.; Kowalewski, Matthew G.] Sci Syst & Applicat Inc, Lanham, MD 20706 USA.
[Shettle, Eric P.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Levelt, Pieternel F.] Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands.
RP DeLand, MT (reprint author), Sci Syst & Applicat Inc, 10210 Greenbelt Rd,Ste 600, Lanham, MD 20706 USA.
EM matthew_deland@ssaihq.com
FU NASA's Office of Earth Science [NNH08CD48C]; Office of Naval Research
FX Most of this work was supported by grant NNH08CD48C from NASA's Office
of Earth Science. Part of E.P. Shettle's work was supported by NRL
internal funding from the Office of Naval Research. We greatly
appreciate many insightful discussions with Gary Thomas and John
Olivero. We acknowledge the valuable comments from three anonymous
reviewers.
NR 28
TC 4
Z9 4
U1 0
U2 0
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 NOV 2
PY 2010
VL 115
AR D21301
DI 10.1029/2009JD013685
PG 10
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 676UQ
UT WOS:000283944500002
ER
PT J
AU Biffinger, JC
Ringeisen, BR
AF Biffinger, J. C.
Ringeisen, B. R.
TI Air-exposed microbial fuel cells and screening techniques
SO JOURNAL OF BIOTECHNOLOGY
LA English
DT Meeting Abstract
CT 14th International Biotechnology Symposium and Exhibition (IBS-2008)
CY SEP 14-18, 2010
CL Rimini, ITALY
DE Microbial fuel cell; Shewanella; High throughput screening;
Carbohydrates
C1 [Biffinger, J. C.; Ringeisen, B. R.] USN, Res Lab, Stennis Space Ctr, MS USA.
NR 0
TC 0
Z9 0
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-1656
J9 J BIOTECHNOL
JI J. Biotechnol.
PD NOV
PY 2010
VL 150
SU 1
BP S24
EP S25
DI 10.1016/j.jbiotec.2010.08.074
PG 2
WC Biotechnology & Applied Microbiology
SC Biotechnology & Applied Microbiology
GA 741OQ
UT WOS:000288873400058
ER
PT J
AU Lampe, M
Fernsler, RF
Slinker, SP
Gordon, DF
AF Lampe, Martin
Fernsler, Richard F.
Slinker, Steven P.
Gordon, Daniel F.
TI Traveling wave model for laser-guided discharges
SO PHYSICS OF PLASMAS
LA English
DT Article
ID ATMOSPHERIC-PRESSURE AIR; POSITIVE STREAMER; PLASMA CHANNEL; ELECTRICAL
DISCHARGES; MEGAVOLT DISCHARGES; LEADER DISCHARGES; GROUND ROD;
FILAMENTS; PULSE; BREAKDOWN
AB We present an easily solvable 1D traveling wave model for laser-guided discharges By assuming constant propagation speed u, the hydro/electrodynamic/chemistry equations are reduced to ordinary differential equations in retarded time tau Negative discharges are shown to propagate only if u > mu E(b), where mu, is electron mobility and E(b) is the breakdown field, positive discharges propagate only if the channel preconductance exceeds similar to 6 X 10(-11) m/Omega The axial electric field E is shown to spike up to several times E(b) and then relax to similar to E(b) for as long as the gas remains cold In this streamer region, the channel conductance, current, and potential all increase linearly with tau The transition to the leader stage, where E is much smaller, occurs in two steps excitation of vibrational and low-lying electronic states, then gas heating The propagation range decreases as a function of initial radius and (for given maximum voltage) of the voltage rise rate Expansion of the hot channel is shown to increase the range [doi 10 1063/1 3494160]
C1 [Lampe, Martin; Fernsler, Richard F.; Slinker, Steven P.; Gordon, Daniel F.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU Office of Naval Research; Army Research Office, Development and
Engineering Center
FX This work was supported by the Office of Naval Research and by the Army
Research Office, Development and Engineering Center The authors are
grateful to Dr Phillip Sprangle for originating and encouraging this
research and for contributing to the initial stages of the work The
authors also extend special thanks to Dr A Wahab Ali, the guiding spirit
behind the CHMAIR II code
NR 46
TC 2
Z9 2
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD NOV
PY 2010
VL 17
IS 11
AR 113511
DI 10.1063/1.3494160
PG 14
WC Physics, Fluids & Plasmas
SC Physics
GA 697BB
UT WOS:000285486500104
ER
PT J
AU Ferrer, G
AF Ferrer, Geraldo
TI Open architecture, inventory pooling and maintenance modules
SO INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
LA English
DT Article
DE Open architecture; Inventory management; Pooling effects; Distribution
network; Ardalan heuristics; Case study
ID LOCATION; MODELS; GRAPH
AB The adoption of open architecture has several economic implications in the life of an asset, including developmental, production, storage, training and maintenance costs. This research responds to an inquiry by the Program Executive Officer Integrated Weapons System (US Department of the Navy) regarding the value of open architecture (OA) in the design of complex assets. With this intent, we evaluate how the inventory allocation of spare engines for the F-16 operations in the continental United States would be affected with and without the adoption of open architecture, focusing on the benefits of inventory pooling to meet the demand of many users from a small number of storage sites. We use a distance-constrained version of the Ardalan heuristic for solving the facility location problem, responding to practical limitations exposed by the model. This article shows that open architecture may provide substantial supply chain cost reduction, and simplification of the distribution network when combined with proper inventory storage policies. Published by Elsevier B.V.
C1 USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Ferrer, G (reprint author), USN, Postgrad Sch, IN 234 555 Dyer Rd, Monterey, CA 93943 USA.
EM gferrer@nps.edu
OI Ferrer, Geraldo/0000-0003-1395-6143
FU Naval Postgraduate School Acquisition Research Chair
FX The authors wish to acknowledge two anonymous referees for providing
numerous suggestions that greatly improved this study. We are thankful
to Retired Rear Admiral Jim Greene, the Naval Postgraduate School
Acquisition Research Chair, and to Prof. Keith Snider, director of the
Acquisitions Research Program, for securing the necessary research funds
to support this work.
NR 23
TC 5
Z9 6
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0925-5273
J9 INT J PROD ECON
JI Int. J. Prod. Econ.
PD NOV
PY 2010
VL 128
IS 1
SI SI
BP 393
EP 403
DI 10.1016/j.ijpe.2010.07.034
PG 11
WC Engineering, Industrial; Engineering, Manufacturing; Operations Research
& Management Science
SC Engineering; Operations Research & Management Science
GA 679BO
UT WOS:000284134600039
ER
PT J
AU Bollt, EM
Yao, C
Schwartz, IB
AF Bollt, Erik M.
Yao, Chen
Schwartz, Ira B.
TI Dimensional implications of dynamical data on manifolds to empirical KL
analysis
SO PHYSICA D-NONLINEAR PHENOMENA
LA English
DT Article
DE Dimension reduction; POD; Empirical KL analysis; Slow manifold; Singular
perturbation
ID CHAOS
AB We explore the approximation of attracting manifolds of complex systems using dimension reducing methods. Complex systems having high-dimensional dynamics typically are initially analyzed by exploring techniques to reduce the dimension. Linear techniques, such as Galerkin projection methods, and nonlinear techniques, such as center manifold reduction are just some of the examples used to approximate the manifolds on which the attractors lie. In general, if the manifold is not highly curved, then both linear and nonlinear methods approximate the surface well. However, if the manifold curvature changes significantly with respect to parametric variations, then linear techniques may fail to give an accurate model of the manifold. This may not be a surprise in itself, but it is a fact so often overlooked or misunderstood when utilizing the popular KL method, that we offer this explicit study of the effects and consequences. Here we show that certain dimensions defined by linear methods are highly sensitive when modeled in situations where the attracting manifolds have large parametric curvature. Specifically, we show how manifold curvature mediates the dimension when using a linear basis set as a model. We punctuate our results with the definition of what we call, a "curvature induced parameter," d(cl). Both finite- and infinite-dimensional models are used to illustrate the theory. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Bollt, Erik M.; Yao, Chen] Clarkson Univ, Dept Math & Comp Sci, Potsdam, NY 13699 USA.
[Schwartz, Ira B.] USN, Res Lab, Div Plasma Phys, Nonlinear Dynam Syst Sect, Washington, DC 20375 USA.
RP Bollt, EM (reprint author), Clarkson Univ, Dept Math & Comp Sci, Potsdam, NY 13699 USA.
EM bolltem@clarkson.edu
RI Schwartz, Ira/A-8073-2009
FU NSF [DMS-0404778]; Office of Naval Research
FX EMB and CY are supported by the NSF under DMS-0404778. IBS is supported
by the Office of Naval Research.
NR 27
TC 0
Z9 0
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-2789
J9 PHYSICA D
JI Physica D
PD NOV 1
PY 2010
VL 239
IS 23-24
BP 2039
EP 2049
DI 10.1016/j.physd.2010.07.004
PG 11
WC Mathematics, Applied; Physics, Multidisciplinary; Physics, Mathematical
SC Mathematics; Physics
GA 680PU
UT WOS:000284247700002
ER
PT J
AU Apte, UM
Cavaliere, RA
Kulkarni, SS
AF Apte, Uday M.
Cavaliere, Richard A.
Kulkarni, Shailesh S.
TI Analysis and Improvement of Information-Intensive Services: Evidence
from Insurance Claims Handling Operations
SO PRODUCTION AND OPERATIONS MANAGEMENT
LA English
DT Article
DE service operations; information-intensive services; service
classification; insurance claims handling operations
ID MANAGEMENT; ECONOMY
AB Information-intensive services (IIS), such as financial services, business services, health care, and education, form a large and growing part of the service sector in the US economy. In this paper we present a classification of IIS based on their operational characteristics. We also propose empirically grounded conceptual analysis and prescriptive frameworks useful for the improvement of certain types of IIS. By conducting statistical analyses of a large sample of claims data from one of the largest property and casualty companies in the United States, we isolate key drivers of service performance and identify preemptive actions that can favorably impact performance metrics. Those results demonstrate the direct operationalization of the proposed frameworks with primary data. Our conceptual analysis, empirical findings, and the prescriptive framework that follow, provide an action plan that can lead to a systemic improvement in the performance of information and customer contact intensive services.
C1 [Apte, Uday M.] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Cavaliere, Richard A.] St Josephs Univ, Dept Math, Philadelphia, PA 19131 USA.
[Kulkarni, Shailesh S.] Univ N Texas, ITDS Dept, Denton, TX 76203 USA.
RP Apte, UM (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
EM umapte@nps.edu; rcavalie@sju.edu; kulkarni@unt.edu
NR 30
TC 5
Z9 6
U1 1
U2 6
PU PRODUCTION OPERATIONS MANAGEMENT SOC
PI BALTIMORE
PA UNIV BALTIMORE, 1420 CHARLES ST, BALTIMORE, MD 21201 USA
SN 1059-1478
J9 PROD OPER MANAG
JI Prod. Oper. Manag.
PD NOV-DEC
PY 2010
VL 19
IS 6
BP 665
EP 678
DI 10.3401/poms.1080.01150
PG 14
WC Engineering, Manufacturing; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 679MS
UT WOS:000284166100002
ER
PT J
AU Segev, DL
Gentry, SE
AF Segev, D. L.
Gentry, S. E.
TI The Physician Carries a Significant Burden of Living Donation
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Letter
ID KIDNEY
C1 [Segev, D. L.; Gentry, S. E.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Segev, D. L.] Johns Hopkins Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA.
[Gentry, S. E.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Segev, DL (reprint author), Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD NOV
PY 2010
VL 10
IS 11
BP 2559
EP 2559
DI 10.1111/j.1600-6143.2010.03277.x
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 672OM
UT WOS:000283595700025
ER
PT J
AU Howse, D
Logie, M
Bluiett, AG
O'Connor, S
Condon, NJ
Ganem, J
Bowman, SR
AF Howse, Daniel
Logie, Michael
Bluiett, A. G.
O'Connor, S.
Condon, N. J.
Ganem, Joseph
Bowman, S. R.
TI Optically-pumped mid-IR phosphor using Tm3+-sensitized Pr3+-doped
KPb2Cl5
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
LA English
DT Article
ID ENERGY-TRANSFER PROCESSES; POTASSIUM LEAD CHLORIDE; UP-CONVERSION
PROCESSES; SOLID-STATE LASER; ER-DOPED KPB2CL5; ROOM-TEMPERATURE;
SINGLE-CRYSTALS; EMISSION PROPERTIES; MU-M; GROWTH
AB Efficient energy transfer at room temperature from Tm3+ to Pr3+ has been demonstrated in co-doped KPb2Cl5. Because of the low phonon energies in KPb2Cl5, the energy transfer processes result in the conversion of 805 nm laser diode pump energy to a broad band of mid-IR radiation between 3500 to 5500 nm. Energy transfer pathways, rates, and quantum efficiencies are evaluated. Results show that the material is suitable as a phosphor for the 4 to 5 mu m spectral range that can be optically pumped with low-cost 0.8 mu m laser diodes. (C) 2010 Optical Society of America
C1 [Howse, Daniel; Logie, Michael; Ganem, Joseph] Loyola Univ Maryland, Dept Phys, Baltimore, MD 21210 USA.
[Bluiett, A. G.; O'Connor, S.; Condon, N. J.; Bowman, S. R.] USN, Res Lab, Washington, DC 20375 USA.
RP Ganem, J (reprint author), Loyola Univ Maryland, Dept Phys, 4501 N Charles St, Baltimore, MD 21210 USA.
EM ganem@loyola.edu
FU Office of Naval Research (ONR); National Research Council (NRC); Sachs
Freeman Associates, Inc.; National Science Foundation (NSF) Division of
Electrical and Communication Systems [ECS-0245455]
FX The Office of Naval Research (ONR), the National Research Council (NRC),
and Sachs Freeman Associates, Inc., supported this work. Work at Loyola
College is supported by the National Science Foundation (NSF) Division
of Electrical and Communication Systems under grant ECS-0245455.
NR 42
TC 4
Z9 4
U1 0
U2 5
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0740-3224
EI 1520-8540
J9 J OPT SOC AM B
JI J. Opt. Soc. Am. B-Opt. Phys.
PD NOV
PY 2010
VL 27
IS 11
BP 2384
EP 2392
PG 9
WC Optics
SC Optics
GA 674VS
UT WOS:000283778900041
ER
PT J
AU Rosen, E
Kallhammer, JE
Eriksson, D
Nentwich, M
Fredriksson, R
Smith, K
AF Rosen, Erik
Kallhammer, Jan-Erik
Eriksson, Dick
Nentwich, Matthias
Fredriksson, Rikard
Smith, Kip
TI Pedestrian injury mitigation by autonomous braking
SO ACCIDENT ANALYSIS AND PREVENTION
LA English
DT Article
DE Pedestrian; Autonomous braking; Mitigation effectiveness; Real-life data
AB The objective of this study was to calculate the potential effectiveness of a pedestrian injury mitigation system that autonomously brakes the car prior to impact. The effectiveness was measured by the reduction of fatally and severely injured pedestrians. The database from the German In-Depth Accident Study (GIDAS) was queried for pedestrians hit by the front of cars from 1999 to 2007. Case by case information on vehicle and pedestrian velocities and trajectories were analysed to estimate the field of view needed for a vehicle-based sensor to detect the pedestrians one second prior to the crash. The pre-impact braking system was assumed to activate the brakes one second prior to crash and to provide a braking deceleration up to the limit of the road surface conditions, but never to exceed 0.6 g. New impact speeds were then calculated for pedestrians that would have been detected by the sensor. These calculations assumed that all pedestrians who were within a given field of view but not obstructed by surrounding objects would be detected. The changes in fatality and severe injury risks were quantified using risk curves derived by logistic regression of the accident data. Summing the risks for all pedestrians, relationships between mitigation effectiveness, sensor field of view, braking initiation time, and deceleration were established. The study documents that the effectiveness at reducing fatally (severely) injured pedestrians in frontal collisions with cars reached 40% (27%) at a field of view of 40 degrees. Increasing the field of view further led to only marginal improvements in effectiveness. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Rosen, Erik; Kallhammer, Jan-Erik; Eriksson, Dick; Nentwich, Matthias; Fredriksson, Rikard] Autoliv Res, S-44783 Vargarda, Sweden.
[Smith, Kip] USN, Postgrad Sch, Dept Operat Res, Monterey, CA USA.
RP Rosen, E (reprint author), Autoliv Res, Wallentinsvagen 22, S-44783 Vargarda, Sweden.
EM erik.rosen@autoliv.com
NR 21
TC 20
Z9 21
U1 1
U2 3
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0001-4575
J9 ACCIDENT ANAL PREV
JI Accid. Anal. Prev.
PD NOV
PY 2010
VL 42
IS 6
BP 1949
EP 1957
DI 10.1016/j.aap.2010.05.018
PG 9
WC Ergonomics; Public, Environmental & Occupational Health; Social
Sciences, Interdisciplinary; Transportation
SC Engineering; Public, Environmental & Occupational Health; Social
Sciences - Other Topics; Transportation
GA 655HS
UT WOS:000282240500050
PM 20728647
ER
PT J
AU Fonda, RW
Knipling, KE
AF Fonda, R. W.
Knipling, K. E.
TI Texture development in near-alpha Ti friction stir welds
SO ACTA MATERIALIA
LA English
DT Article
DE Friction stir welding; Shear texture; Titanium alloys; Electron
backscattering diffraction (EBSD)
ID CHANNEL ANGULAR EXTRUSION; GRAIN-STRUCTURE; PERSISTENCE CHARACTERISTICS;
MICROSTRUCTURAL EVOLUTION; IDEAL ORIENTATIONS; STAINLESS-STEEL;
ALUMINUM-ALLOYS; SHEAR TEXTURES; PURE TITANIUM; TORSION
AB The microstructures and crystallographic textures produced during friction stir welding of the near-alpha Ti-5111 titanium alloy were characterized as a function of welding speed. The textures produced were compared with ideal hexagonal close packed (hcp) shear textures and with predicted textures of hcp Burgers variants of ideal body-centered cubic (bcc) shear textures, showing that the deposited welds are dominated by the hcp P(1) and bcc D(1) textures. The hcp P(1) shear texture was dominant at slow weld speeds, while the bee D(1) shear texture was dominant at the fast weld speed. This variation appears to result from a poor transmission of the shear deformation from the rotating tool to the deposited weld that develops at faster welding speeds. These observations are compared to other studies of friction stir welds in hcp and bcc materials reported in the literature. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Fonda, R. W.; Knipling, K. E.] USN, Res Lab, Washington, DC 20375 USA.
RP Fonda, RW (reprint author), USN, Res Lab, Code 6356,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM richard.fonda@nrl.navy.mil
FU Office of Naval Research
FX The authors would like to acknowledge funding for this research through
the Office of Naval Research, as well as the numerous helpful
discussions with Dr. Saiyi Li and Dr. David Rowenhorst.
NR 45
TC 19
Z9 19
U1 3
U2 30
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 NOV
PY 2010
VL 58
IS 19
BP 6452
EP 6463
DI 10.1016/j.actamat.2010.08.007
PG 12
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 675EB
UT WOS:000283807900025
ER
PT J
AU Ball, RE
AF Ball, Robert E.
TI COMBINING SAFETY and SURVIVABILITY for future spacefaring
SO AEROSPACE AMERICA
LA English
DT Article
C1 [Ball, Robert E.] USN, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0740-722X
J9 AEROSPACE AM
JI Aerosp. Am.
PD NOV
PY 2010
VL 48
IS 10
BP 16
EP 20
PG 5
WC Engineering, Aerospace
SC Engineering
GA V24KA
UT WOS:000208408100006
ER
PT J
AU Dauner, A
Ekanayake, S
Pal, S
Kochel, T
Wu, SJ
AF Dauner, Allison
Ekanayake, Sajeewane
Pal, Subhamoy
Kochel, Tadeusz
Wu, Shuenn-Jue
TI PAN-SEROTYPE SEQUENCE-SPECIFIC DETECTION OF DENGUE VIRUS USING
LOOP-MEDIATED ISOTHERMAL AMPLIFICATION
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Dauner, Allison; Ekanayake, Sajeewane; Pal, Subhamoy; Kochel, Tadeusz; Wu, Shuenn-Jue] USN, Med Res Ctr, Silver Spring, MD USA.
RI Pal, Subhamoy/A-9526-2015
OI Pal, Subhamoy/0000-0003-0133-8444
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 94
BP 29
EP 29
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819700095
ER
PT J
AU Mayes, RC
Gregory, MJ
Cepeda, D
Nunez, G
Cevallos, A
Espinoza, N
O'Dowd, A
Savarino, SJ
AF Mayes, Ryan C.
Gregory, Michael J.
Cepeda, David
Nunez, Gladys
Cevallos, Ana
Espinoza, Nereyda
O'Dowd, Aisling
Savarino, Stephen J.
TI IMMUNOGENICITY AND PROTECTIVE EFFICACY OF A FIMBRIAL ADHESIN-BASED
VACCINE AGAINST ENTEROTOXIGENIC ESCHERICHIA COLI IN AOTUS NANCYMAAE:
EVALUATION OF DOSING AND ROUTE OF VACCINATION
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Mayes, Ryan C.; Gregory, Michael J.; Cepeda, David; Nunez, Gladys; Cevallos, Ana; Espinoza, Nereyda] US Naval Med Res Ctr Detachment, Lima, Peru.
[O'Dowd, Aisling; Savarino, Stephen J.] USN, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 486
BP 145
EP 146
PG 2
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819700487
ER
PT J
AU Tamminga, C
Maioletesi, S
Fedders, C
Bonhoeffer, J
Heininger, U
Moorthy, V
Richie, T
Epstein, J
AF Tamminga, Cindy
Maioletesi, Santina
Fedders, Charlotte
Bonhoeffer, Jan
Heininger, Uli
Moorthy, Vasee
Richie, Thomas
Epstein, Judith
TI A SYSTEMATIC REVIEW OF SAFETY DATA REPORTING FROM MALARIA, TUBERCULOSIS,
AND HIV VACCINE TRIALS: THE NEED FOR INTERNATIONAL GUIDELINES
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Tamminga, Cindy; Maioletesi, Santina; Fedders, Charlotte; Richie, Thomas; Epstein, Judith] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Bonhoeffer, Jan; Heininger, Uli] Univ Childrens Hosp, Div Infect Dis & Vaccines, Basel, Switzerland.
[Moorthy, Vasee] WHO, Initiat Vaccine Res, CH-1211 Geneva, Switzerland.
RI Bonhoeffer, Jan/E-5903-2014
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 492
BP 147
EP 147
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819700493
ER
PT J
AU Kuchuloria, T
Clark, DV
Akhvlediani, T
Nanuashvili, A
Makhviladze, M
Kanashvili, M
Tsertsvadze, T
Endeladze, M
Chokheli, M
Chikviladze, T
Chubinidze, M
House, B
Farrell, M
Maksoud, MA
Hepburn, MJ
Pimentel, G
AF Kuchuloria, Tinatin
Clark, Danielle V.
Akhvlediani, Tamar
Nanuashvili, Alexander
Makhviladze, Manana
Kanashvili, Marine
Tsertsvadze, Tengiz
Endeladze, Marina
Chokheli, Maiko
Chikviladze, Tamar
Chubinidze, Marine
House, Brent
Farrell, Margaret
Maksoud, Mohamed Abdel
Hepburn, Matthew J.
Pimentel, Guillermo
TI LABORATORY SURVEILLANCE FOR THE POSSIBLE INFECTIOUS CAUSES OF
UNDIFFERENTIATED FEBRILE ILLNESSES IN THE COUNTRY OF GEORGIA
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Kuchuloria, Tinatin; Akhvlediani, Tamar] I Javakhishvili Tbilisi State Univ, Tbilisi, Rep of Georgia.
[Kuchuloria, Tinatin; Akhvlediani, Tamar] Technol Management Co, Tbilisi, Rep of Georgia.
[Clark, Danielle V.] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Nanuashvili, Alexander] Serv Antimicrobial Chemotherapy, Tbilisi, Rep of Georgia.
[Makhviladze, Manana; Kanashvili, Marine] V Bochorishvili Antisepsis Ctr, Tbilisi, Rep of Georgia.
[Tsertsvadze, Tengiz; Endeladze, Marina] AIDS & Clin Immunol Res Ctr, Tbilisi, Rep of Georgia.
[Chokheli, Maiko; Chikviladze, Tamar; Chubinidze, Marine] Natl Ctr Dis Control & Publ Hlth, Tbilisi, Rep of Georgia.
[House, Brent; Farrell, Margaret; Maksoud, Mohamed Abdel; Pimentel, Guillermo] USN, Global Dis Detect & Response Program, Med Res Unit 3, Cairo, Egypt.
[Hepburn, Matthew J.] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
NR 0
TC 0
Z9 0
U1 0
U2 4
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 504
BP 151
EP 151
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819700505
ER
PT J
AU Chao, CC
Zhang, ZW
Chen, HW
Mutumanje, E
Ching, WM
AF Chao, Chien-Chung
Zhang, Zhiwen
Chen, Hua-Wei
Mutumanje, Elissa
Ching, Wei-Mei
TI EVALUATION OF METHYLATED RECOMBINANT OMPB FRAGMENTS AS REAGENTS FOR
SERO-DIAGNOSIS OF RICKETTSIA TYPHI IN ELISA
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Chao, Chien-Chung; Zhang, Zhiwen; Chen, Hua-Wei; Mutumanje, Elissa; Ching, Wei-Mei] USN, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 654
BP 195
EP 195
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701023
ER
PT J
AU Gutteridge, CE
Baxter, MC
Hughes, SM
Sadowski, BW
Rodrigo, LG
Smith, MB
O'Neil, MT
McCalmont, WF
Gerena, L
Montip, G
AF Gutteridge, Clare E.
Baxter, Michael C.
Hughes, Stephen M.
Sadowski, Brett W.
Rodrigo, Leighton G.
Smith, Matthew B.
O'Neil, Michael T.
McCalmont, William F.
Gerena, Lucia
Montip, Gettayacamin
TI DEVELOPMENT OF A NOVEL CHEMICAL SERIES WITH ACTIVITY AGAINST BOTH BLOOD-
AND LIVER-STAGES OF PLASMODIUM FALCIPARUM
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Gutteridge, Clare E.; Baxter, Michael C.; Hughes, Stephen M.; Sadowski, Brett W.; Rodrigo, Leighton G.; Smith, Matthew B.] USN Acad, Annapolis, MD 21402 USA.
[O'Neil, Michael T.; McCalmont, William F.; Gerena, Lucia] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Montip, Gettayacamin] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 712
BP 212
EP 212
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701080
ER
PT J
AU Chen, P
Myers, B
Curti, E
Aguiar, J
Limbach, K
Patterson, NB
Sedegah, M
Richie, TL
Bruder, JT
AF Chen, Ping
Myers, Bennett
Curti, Elena
Aguiar, Joao
Limbach, Keith
Patterson, Noelle B.
Sedegah, Martha
Richie, Thomas L.
Bruder, Joseph T.
TI HIGH THROUGHPUT GENOMICS SCREENING FOR MALARIA ANTIGEN DISCOVERY
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Chen, Ping; Myers, Bennett; Bruder, Joseph T.] GenVec Inc, Gaithersburg, MD USA.
[Curti, Elena; Aguiar, Joao; Limbach, Keith; Patterson, Noelle B.; Sedegah, Martha; Richie, Thomas L.] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 740
BP 220
EP 220
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701108
ER
PT J
AU Epstein, JE
Lyke, KE
Laurens, MB
Reyes, S
Tamminga, C
Sedegah, M
Thomas, N
Murphy, J
Billingsley, PF
James, E
Gunasekera, A
Anderson, C
Chakravarty, S
Richman, A
Li, M
Ahumada, A
Komisar, J
Bennett, J
Brandt, W
Plowe, CV
Ockenhouse, CF
Sim, BKL
Edelman, R
Richie, TL
Hoffman, SL
AF Epstein, Judith E.
Lyke, Kirsten E.
Laurens, Matthew B.
Reyes, Sharina
Tamminga, Cindy
Sedegah, Martha
Thomas, Nicole
Murphy, Jittawadee
Billingsley, Peter F.
James, Eric
Gunasekera, Anusha
Anderson, Charles
Chakravarty, Sumana
Richman, Adam
Li, Ming
Ahumada, Adriana
Komisar, Jack
Bennett, Jason
Brandt, Walter
Plowe, Christopher V.
Ockenhouse, Christian F.
Sim, B. Kim Lee
Edelman, Robert
Richie, Thomas L.
Hoffman, Stephen L.
TI THE FIRST PHASE 1/2A TRIAL OF THE METABOLICALLY-ACTIVE, WHOLE ORGANISM
PLASMODIUM FALCIPARUM SPOROZOITE (PFSPZ) VACCINE
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Epstein, Judith E.; Reyes, Sharina; Tamminga, Cindy; Sedegah, Martha; Thomas, Nicole; Richie, Thomas L.] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Laurens, Matthew B.; Plowe, Christopher V.] Univ Maryland, Sch Med, Ctr Vaccine Dev, Howard Hughes Med Inst, Baltimore, MD 21201 USA.
[Murphy, Jittawadee; Komisar, Jack; Bennett, Jason; Ockenhouse, Christian F.] Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Billingsley, Peter F.; James, Eric; Gunasekera, Anusha; Anderson, Charles; Chakravarty, Sumana; Richman, Adam; Li, Ming; Ahumada, Adriana; Sim, B. Kim Lee; Hoffman, Stephen L.] Sanaria Inc, Rockville, MD USA.
[Brandt, Walter] PATH Malaria Vaccine Initiat, Bethesda, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 3
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 807
BP 239
EP 240
PG 2
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701175
ER
PT J
AU Sedegah, M
Chuang, IL
McGrath, S
House, B
Ganeshan, H
Lejano, J
Abot, E
Banania, G
Sayo, R
Farooq, F
Belmonte, M
Richie, NO
Wood, C
Long, CA
Regis, D
Tamminga, C
Spring, M
Limbach, K
Patterson, NB
Bruder, J
Doolan, DL
Soisson, L
Diggs, C
Ockenhouse, CF
Richie, TL
AF Sedegah, Martha
Chuang, Ilin
McGrath, Shannon
House, Brent
Ganeshan, Harini
Lejano, Jennylynn
Abot, Esteban
Banania, Glenna
Sayo, Renato
Farooq, Fouzia
Belmonte, Maria
Richie, Nancy O.
Wood, Chloe
Long, Carole A.
Regis, David
Tamminga, Cindy
Spring, Michele
Limbach, Keith
Patterson, Noelle B.
Bruder, Joe
Doolan, Denise L.
Soisson, Lorraine
Diggs, Carter
Ockenhouse, Christian F.
Richie, Thomas L.
TI ANALYSIS OF CELL-MEDIATED IMMUNE RESPONSES IN VOLUNTEERS STERILELY
PROTECTED AGAINST PLASMODIUM FALCIPARUM SPOROZOITE CHALLENGE FOLLOWING
IMMUNIZATION WITH A GENE-BASED VACCINE
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Sedegah, Martha; Chuang, Ilin; House, Brent; Ganeshan, Harini; Lejano, Jennylynn; Abot, Esteban; Banania, Glenna; Sayo, Renato; Farooq, Fouzia; Belmonte, Maria; Regis, David; Tamminga, Cindy; Limbach, Keith; Patterson, Noelle B.; Richie, Thomas L.] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[McGrath, Shannon; Richie, Nancy O.; Wood, Chloe; Spring, Michele; Ockenhouse, Christian F.] Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Long, Carole A.] NIAID, Lab Malaria & Vector Res, NIH, Rockville, MD USA.
[Bruder, Joe] GenVec Inc, Gaithersburg, MD USA.
[Doolan, Denise L.] Queensland Inst Med Res, Brisbane, Qld 4006, Australia.
[Soisson, Lorraine; Diggs, Carter] US Agcy Int Dev, Washington, DC 20523 USA.
RI Doolan, Denise/F-1969-2015
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 806
BP 239
EP 239
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701174
ER
PT J
AU Chuang, I
Sattabongkot, J
Fryauff, D
Tosh, D
Murphy, J
Saunders, D
Richardson, J
William, J
Bethel, D
Richie, T
Ware, L
Spring, M
Fukuda, M
Tamminga, C
Guerrero, M
Bennett, J
Cummings, J
Yadava, A
Komisar, J
Polhemus, M
Ockenhouse, C
AF Chuang, Ilin
Sattabongkot, Jetsumon
Fryauff, David
Tosh, Donna
Murphy, Jittawadee
Saunders, David
Richardson, Jason
William, Jack
Bethel, Delia
Richie, Thomas
Ware, Lisa
Spring, Michele
Fukuda, Mark
Tamminga, Cindy
Guerrero, Melanie
Bennett, Jason
Cummings, James
Yadava, Anjali
Komisar, Jack
Polhemus, Mark
Ockenhouse, Christian
TI DEVELOPMENT OF A SAFE AND REPRODUCIBLE HUMAN SPOROZOITE CHALLENGE MODEL
FOR PLASMODIUM VIVAX IN HEALTHY ADULTS IN THE UNITED STATES
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Chuang, Ilin; Fryauff, David; Richie, Thomas; Tamminga, Cindy; Polhemus, Mark] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Sattabongkot, Jetsumon; Saunders, David; Richardson, Jason; Bethel, Delia] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand.
[Tosh, Donna; Guerrero, Melanie; Cummings, James] Walter Reed Army Inst Res, Clin Trials Ctr, Silver Spring, MD USA.
[Murphy, Jittawadee; William, Jack] Walter Reed Army Inst Res, Dept Entomol, Silver Spring, MD USA.
[Ware, Lisa; Spring, Michele; Bennett, Jason; Yadava, Anjali; Komisar, Jack; Ockenhouse, Christian] Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 808
BP 240
EP 240
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701176
ER
PT J
AU Klein, TA
Kim, HC
Song, JW
Chae, JS
Jang, WJ
Park, KH
Sames, WJ
Richards, AL
AF Klein, Terry A.
Kim, Heung-Chul
Song, Jin-Won
Chae, Joon-Seok
Jang, Won-Jong
Park, Kyung-Hee
Sames, William J.
Richards, Allen L.
TI SOCIOECONOMIC AND ENVIRONMENTAL FACTORS: INCREASING THE POTENTIAL RISK
OF TICK-BORNE DISEASES IN THE REPUBLIC OF KOREA
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Klein, Terry A.] 65th Med Brigade, APO, AE USA.
[Kim, Heung-Chul] 168th Multifunct Med Battal, Med Detachment 5, APO, AE USA.
[Song, Jin-Won] Korea Univ, Coll Med, Seoul 136705, South Korea.
[Chae, Joon-Seok] Seoul Natl Univ, Coll Vet Med, Seoul, South Korea.
[Jang, Won-Jong; Park, Kyung-Hee] Konkuk Univ, Coll Med, Seoul, South Korea.
[Sames, William J.] Armed Forces Pest Management Board, Washington, DC USA.
[Richards, Allen L.] USN, Rickettsial Dis Res Program, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 820
BP 244
EP 244
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701188
ER
PT J
AU Thomas, N
Epstein, JE
Hoffman, SL
AF Thomas, Nicole
Epstein, Judith E.
Hoffman, Stephen L.
TI A SYSTEMATIC REVIEW OF THE SAFETY OF LICENSED LIVE ATTENUATED VACCINES
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Thomas, Nicole] Natl Capitol Consortium Pediat Infect Dis Fellows, Bethesda, MD USA.
[Epstein, Judith E.] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Hoffman, Stephen L.] Sanaria Inc, Rockville, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 931
BP 278
EP 278
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701299
ER
PT J
AU Fryauff, DJ
McCoy, AJ
Atuguba, F
Amati, MI
Oduro, AR
Anyorigiya, T
Asoala, V
Awine, T
Koram, KA
Hodgson, A
Richards, S
Nkrumah, F
AF Fryauff, David J.
McCoy, Andrea J.
Atuguba, Frank
Amati, Mary I.
Oduro, Abraham R.
Anyorigiya, Thomas
Asoala, Victor
Awine, Timothy
Koram, Kwadwo A.
Hodgson, Abraham
Richards, Samantha
Nkrumah, Francis
TI DOES ENHANCED DETECTION AND ANALYSIS OF MALARIA INFECTIONS IN UMBILICAL
CORD BLOOD SAMPLES EXPLAIN LOW BIRTH WEIGHT AND FETAL ANEMIA IN NEWBORNS
OF THE KASSENA-NANKANA DISTRICT OF NORTHEASTERN GHANA?
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Fryauff, David J.; McCoy, Andrea J.; Richards, Samantha] USN, Med Res Ctr, Silver Spring, MD USA.
[Atuguba, Frank; Amati, Mary I.; Oduro, Abraham R.; Anyorigiya, Thomas; Asoala, Victor; Awine, Timothy; Hodgson, Abraham] Navrongo Hlth Res Ctr, Navrongo, Ghana.
[Koram, Kwadwo A.; Nkrumah, Francis] Noguchi Mem Inst Hlth Res, Accra, Ghana.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 945
BP 282
EP 282
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701313
ER
PT J
AU Roberts, A
Tamminga, C
Wurapa, E
Epstein, J
Malone, P
Whitman, T
Levine, G
Richie, T
AF Roberts, Anne
Tamminga, Cindy
Wurapa, Eyako
Epstein, Judith
Malone, Patrick
Whitman, Timothy
Levine, Gail
Richie, Thomas
TI A COST ANALYSIS: A MALARIA OUTBREAK AMONG MILITARY PERSONNEL DEPLOYED TO
LIBERIA
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Roberts, Anne; Malone, Patrick] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Tamminga, Cindy; Epstein, Judith; Levine, Gail; Richie, Thomas] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Wurapa, Eyako] 95th CA BDE Surg, Fayetteville, NC USA.
[Whitman, Timothy] Natl Naval Med Ctr, Bethesda, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 972
BP 290
EP 291
PG 2
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701339
ER
PT J
AU Tamminga, C
Epstein, JE
Kronmann, K
Wells, N
Ockenhouse, CF
Richie, TL
AF Tamminga, Cindy
Epstein, Judith E.
Kronmann, Karl
Wells, Natalie
Ockenhouse, Christian F.
Richie, Thomas L.
TI THE IMPACT OF MALARIA ON THE UNITED STATES MILITARY: SEPTEMBER 2001 TO
PRESENT
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Tamminga, Cindy; Epstein, Judith E.; Richie, Thomas L.] USN, Med Res Ctr, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Kronmann, Karl] Ghana Detachment, Naval Med Res Unit 3, Legon, Ghana.
[Wells, Natalie] USN, Environm Prevent Med Unit 2, Norfolk, VA USA.
[Ockenhouse, Christian F.] Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 971
BP 290
EP 290
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701338
ER
PT J
AU Chuang, I
Sedegah, M
Cicatelli, S
Spring, M
Tamminga, C
Bennett, J
Guerrero, M
Polhemus, M
Cummings, J
Angov, E
Bruder, J
Patterson, N
Limbach, K
Bergmann-Leitner, E
Murphy, J
Soisson, L
Diggs, C
Ockenhouse, C
Richie, T
AF Chuang, Ilin
Sedegah, Martha
Cicatelli, Susan
Spring, Michele
Tamminga, Cindy
Bennett, Jason
Guerrero, Melanie
Polhemus, Mark
Cummings, James
Angov, Evelina
Bruder, Joe
Patterson, Noelle
Limbach, Keith
Bergmann-Leitner, Elke
Murphy, Jittawadee
Soisson, Lorraine
Diggs, Carter
Ockenhouse, Christian
Richie, Thomas
TI PHASE 1/2A CLINICAL TRIAL ON SAFETY, TOLERABILITY, IMMUNOGENICITY AND
EFFICACY OF PRIME BOOST REGIMEN OF DNA- AND ADENOVIRUS-VECTORED MALARIA
VACCINES ENCODING PLASMODIUM FALCIPARUM CIRCUMSPOROZOITE PROTEIN (CSP)
AND APICAL MEMBRANE ANTIGEN (AMA1) IN MALARIA-NAIVE ADULTS
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Chuang, Ilin; Sedegah, Martha; Tamminga, Cindy; Patterson, Noelle; Limbach, Keith; Richie, Thomas] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Cicatelli, Susan; Guerrero, Melanie; Cummings, James] Walter Reed Army Inst Res, Clin Trials Ctr, Silver Spring, MD USA.
[Spring, Michele; Bennett, Jason; Angov, Evelina; Bergmann-Leitner, Elke; Ockenhouse, Christian] Walter Reed Army Inst Res, US Mil Malaria Vaccine Program, Silver Spring, MD USA.
[Polhemus, Mark] USA, Med Res & Mat Command, Ft Detrick, MD USA.
[Bruder, Joe] GenVec, Gaithersburg, MD USA.
[Murphy, Jittawadee] Walter Reed Army Inst Res, Dept Entomol, Silver Spring, MD USA.
[Soisson, Lorraine; Diggs, Carter] US Agcy Int Dev, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 984
BP 294
EP 294
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701351
ER
PT J
AU Sedegah, M
Chakravarty, S
Lyke, KE
Epstein, JE
Anderson, C
Ganeshan, H
Lejano, J
Abot, E
Banania, GJ
Sayo, R
Belmonte, M
Park, C
Richie, TL
Hoffman, SL
AF Sedegah, Martha
Chakravarty, Sumana
Lyke, Kirsten E.
Epstein, Judith E.
Anderson, Charles
Ganeshan, Harini
Lejano, Jennylynn
Abot, Estaban
Banania, Glenna J.
Sayo, Renato
Belmonte, Maria
Park, Christine
Richie, Thomas L.
Hoffman, Stephen L.
TI INTERFERON GAMMA ELISPOT RESPONSES IN PERIPHERAL BLOOD MONONUCLEAR CELLS
FROM VOLUNTEERS IMMUNIZED WITH A METABOLICALLY ACTIVE, NON-REPLICATING
PLASMODIUM FALCIPARUM SPOROZOITE VACCINE
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Sedegah, Martha; Epstein, Judith E.; Ganeshan, Harini; Lejano, Jennylynn; Abot, Estaban; Banania, Glenna J.; Sayo, Renato; Belmonte, Maria; Park, Christine; Richie, Thomas L.] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Chakravarty, Sumana; Anderson, Charles; Hoffman, Stephen L.] Sanaria Inc, Rockville, MD USA.
[Lyke, Kirsten E.] Univ Maryland, Sch Med, Ctr Vaccine Dev, Baltimore, MD 21201 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 985
BP 295
EP 295
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701352
ER
PT J
AU Sim, BKL
Stafford, RE
Ahumada, A
Li, ML
Chattopadhyay, R
Sedegah, M
Chen, E
Xu, R
Orozco, M
Jiang, B
Wang, RB
Ganeshan, H
Abbot, S
Herrera, S
Hoffman, SL
AF Sim, B. Kim Lee
Stafford, Richard E.
Ahumada, Adriana
Li, Minglin
Chattopadhyay, Rana
Sedegah, Martha
Chen, Emily
Xu, Ray
Orozco, Maria
Jiang, Bing
Wang, Ruobing
Ganeshan, Harini
Abbot, Steve
Herrera, Socrates
Hoffman, Stephen L.
TI DEVELOPMENT OF A PLASMODIUM VIVAX RECOMBINANT CS PROTEIN VACCINE
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Sim, B. Kim Lee; Stafford, Richard E.; Ahumada, Adriana; Li, Minglin; Chen, Emily; Xu, Ray; Orozco, Maria; Jiang, Bing; Hoffman, Stephen L.] Prot Potential, Rockville, MD USA.
[Chattopadhyay, Rana] Sanaria, Rockville, MD USA.
[Sedegah, Martha; Ganeshan, Harini; Abbot, Steve] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Herrera, Socrates] Seattle Biomed Res Inst, Seattle, WA 98109 USA.
[Herrera, Socrates] Univ Valle Cali, Inst Immunol, Cali, Colombia.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 987
BP 295
EP 295
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701354
ER
PT J
AU Dosanjh, NS
Stafford, RE
Ahumada, A
Chen, E
Li, ML
Velmurugan, S
Conteh, S
Gao, LX
Sedegah, M
Belmonte, M
Li, T
Abebe, Y
Eappen, A
Bruder, JT
Reed, SG
Hoffman, SL
Sim, BKL
AF Dosanjh, Nuvjeevan S.
Stafford, Richard E.
Ahumada, Adriana
Chen, Emily
Li, Minglin
Velmurugan, Soundarapandian
Conteh, Solomon
Gao, Lixin
Sedegah, Martha
Belmonte, Maria
Li, Tao
Abebe, Yonas
Eappen, Abraham
Bruder, Joseph T.
Reed, Steven G.
Hoffman, Stephen L.
Sim, B. Kim Lee
TI DEVELOPMENT OF PLASMODIUM FALCIPARUM CELTOS AS A MALARIA VACCINE
IMMUNOGEN
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Dosanjh, Nuvjeevan S.; Stafford, Richard E.; Ahumada, Adriana; Chen, Emily; Li, Minglin; Gao, Lixin; Hoffman, Stephen L.; Sim, B. Kim Lee] Prot Potential, Rockville, MD USA.
[Velmurugan, Soundarapandian; Conteh, Solomon; Li, Tao; Abebe, Yonas; Eappen, Abraham] Sanaria, Rockville, MD USA.
[Sedegah, Martha; Belmonte, Maria] USN, US Mil Malaria Vaccine Program, Med Res Ctr, Silver Spring, MD USA.
[Bruder, Joseph T.] Genvec, Gaithersburg, MD USA.
[Reed, Steven G.] Infect Dis Res Inst, Seattle, WA USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 988
BP 296
EP 296
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701355
ER
PT J
AU Glennon, E
Chen, HW
Zhang, ZW
Ching, WM
AF Glennon, Erin
Chen, Hua-Wei
Zhang, Zhiwen
Ching, Wei-Mei
TI DETECTION OF Q-FEVER SPECIFIC ANTIBODIES UTILIZING COM-1 ENZYME-LINKED
IMMUNOSORBENT ASSAYS
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Glennon, Erin; Chen, Hua-Wei; Zhang, Zhiwen; Ching, Wei-Mei] USN, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 1024
BP 306
EP 306
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701391
ER
PT J
AU Ching, WM
Chao, CC
Chan, TC
Zhang, ZW
Huber, E
Chen, HW
AF Ching, Wei-Mei
Chao, Chien-Chung
Chan, Teik-Chye
Zhang, Zhiwen
Huber, Erin
Chen, Hua-Wei
TI COMBINATION OF DNA VACCINE PLASMIDS CARRYING THE GENE CODING FOR THE
TRUNCATED 47 KDA ANTIGEN AND THE CODON OPTIMIZED GENE OF 56 KDA ANTIGEN
CAN PROVIDE EXCELLENT PROTECTION AGAINST THE HOMOLOGOUS CHALLENGE OF
ORIENTIA KARP STRAIN IN A MOUSE MODEL
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Ching, Wei-Mei; Chao, Chien-Chung; Chan, Teik-Chye; Zhang, Zhiwen; Huber, Erin; Chen, Hua-Wei] USN, Med Res Ctr, Silver Spring, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 1027
BP 307
EP 307
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701394
ER
PT J
AU Nzussouo, NT
Manoncourt, S
Shuck-Lee, D
Cornelius, C
Kronmann, K
Ampofo, W
Kadjo-Adje, H
Diop, OM
Buhari, O
Duggar, C
Davis, R
Deming, M
AF Nzussouo, Ndahwouh Talla
Manoncourt, Serge
Shuck-Lee, Deidra
Cornelius, Claire
Kronmann, Karl
Ampofo, William
Kadjo-Adje, H.
Diop, Ousmane M.
Buhari, Oyofo
Duggar, Chris
Davis, Richard
Deming, Michael
TI ESTABLISHING THE CAPACITY FOR INFLUENZA SENTINEL SURVEILLANCE IN
LIMITED-RESOURCE SETTINGS: A PROGRESS REPORT FROM WEST AFRICA
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [Nzussouo, Ndahwouh Talla; Duggar, Chris; Davis, Richard; Deming, Michael] Ctr Dis Control & Prevent, Influenza Div, Atlanta, GA USA.
[Nzussouo, Ndahwouh Talla] USN, Georgia Global Dis Detect & Response Program, Med Res Unit 3, Noguchi Mem Inst Med Res, Accra, Ghana.
[Manoncourt, Serge] USN, Global Dis Detect & Response Program, Med Res Unit 3, Cairo, Egypt.
[Shuck-Lee, Deidra; Cornelius, Claire; Buhari, Oyofo] USN, Viral & Zoonot Dis Res Program, Med Res Unit 3, Cairo, Egypt.
[Kronmann, Karl] USN, Viral & Zoonot Dis Res Program, Med Res Unit 3, Accra, Ghana.
[Kadjo-Adje, H.] Inst Pasteur, Abidjan, Cote Ivoire.
[Diop, Ousmane M.] Inst Pasteur, Dakar, Senegal.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 1164
BP 346
EP 346
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701531
ER
PT J
AU McCoy, A
Husain, T
Angov, E
Narum, D
Bruder, J
Stoyanov, C
Trager, L
Flynn, B
Tewari, K
Leitner, E
Komisar, J
Ockenhouse, C
Richie, T
Weiss, W
Seder, R
AF McCoy, Andrea
Husain, Tupur
Angov, Evelina
Narum, David
Bruder, Joseph
Stoyanov, Cristina
Trager, Lauren
Flynn, Barbara
Tewari, Kavita
Leitner, Elke
Komisar, Jack
Ockenhouse, Christian
Richie, Thomas
Weiss, Walter
Seder, Robert
TI PRIME-BOOST MALARIA VACCINES IN RHESUS MONKEYS USING PROTEIN IN POLY I:C
ADJUVANT AND ADENOVIRUS VECTORS
SO AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the
American-Society-of-Tropical-Medicine-and-Hygiene (ASTMH)
CY NOV 03-07, 2010
CL Atlanta, GA
SP Amer Soc Trop Med & Hyg (ASTMH)
C1 [McCoy, Andrea; Husain, Tupur; Richie, Thomas; Weiss, Walter] USN, Med Res Ctr, Silver Spring, MD USA.
[Angov, Evelina; Leitner, Elke; Komisar, Jack; Ockenhouse, Christian] Walter Reed Army Inst Res, Silver Spring, MD USA.
[Narum, David; Stoyanov, Cristina; Trager, Lauren; Flynn, Barbara; Tewari, Kavita; Seder, Robert] NIH, Bethesda, MD 20892 USA.
[Bruder, Joseph] GenVec Inc, Gaithersburg, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC TROP MED & HYGIENE
PI MCLEAN
PA 8000 WESTPARK DR, STE 130, MCLEAN, VA 22101 USA
SN 0002-9637
J9 AM J TROP MED HYG
JI Am. J. Trop. Med. Hyg.
PD NOV
PY 2010
VL 83
IS 5
SU S
MA 1173
BP 349
EP 349
PG 1
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 832QF
UT WOS:000295819701540
ER
PT J
AU Thangawng, AL
Kim, JS
Golden, JP
Anderson, GP
Robertson, KL
Low, V
Ligler, FS
AF Thangawng, Abel L.
Kim, Jason S.
Golden, Joel P.
Anderson, George P.
Robertson, Kelly L.
Low, Vyechi
Ligler, Frances S.
TI A hard microflow cytometer using groove-generated sheath flow for
multiplexed bead and cell assays
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Flow cytometry; Microflow cytometer; Hydrodynamic focusing
ID WATERS; FISH
AB With a view toward developing a rugged microflow cytometer, a sheath flow system was micromachined in hard plastic (polymethylmethacrylate) for analysis of particles and cells using optical detection. Six optical fibers were incorporated into the interrogation region of the chip, in which hydrodynamic focusing narrowed the core stream to similar to 35 mu m x 40 mu m. The use of a relatively large channel at the inlet as well as in the interrogation region (375 mu m x 125 mu m) successfully minimized the risk of clogging. The device could withstand pressures greater than 100 psi without leaking. Assays using both coded microparticles and cells were demonstrated using the microflow cytometer. Multiplexed immunoassays detected nine different bacteria and toxins using a single mixture of coded microspheres. A549 cancer cells processed with locked nucleic acid probes were evaluated using fluorescence in situ hybridization.
C1 [Thangawng, Abel L.; Kim, Jason S.; Golden, Joel P.; Anderson, George P.; Robertson, Kelly L.; Low, Vyechi; Ligler, Frances S.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
RP Ligler, FS (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM Frances.ligler@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
FU NIH [UO1 A1075489]; ONR [6336]
FX ALT and KLR were Postdoctoral Fellows of the National Research Council
and JSK was a Postdoctoral Fellow of the American Society of Engineering
Education. VL was an undergraduate summer intern in the Naval Research
Enterprise Internship Program. This work was supported by ONR 6.2 work
unit 6336 and NIH grant UO1 A1075489. The views are those of the authors
and do not represent opinion or policy of the US Navy, Department of
Defense, National Institutes of Health or Department of Health and Human
Services.
NR 18
TC 24
Z9 24
U1 2
U2 21
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD NOV
PY 2010
VL 398
IS 5
BP 1871
EP 1881
DI 10.1007/s00216-010-4019-7
PG 11
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 668BV
UT WOS:000283244500006
PM 20658281
ER
PT J
AU von Benda-Beckmann, AM
Lam, FPA
Moretti, DJ
Fulkerson, K
Ainslie, MA
van Ijsselmuide, SP
Theriault, J
Beerens, SP
AF von Benda-Beckmann, A. M.
Lam, F. P. A.
Moretti, D. J.
Fulkerson, K.
Ainslie, M. A.
van Ijsselmuide, S. P.
Theriault, J.
Beerens, S. P.
TI Detection of Blainville's beaked whales with towed arrays
SO APPLIED ACOUSTICS
LA English
DT Article; Proceedings Paper
CT 4th International Workshop on Detection, Classification and Localization
of Marine Mammals using Passive Acoustics/1st International Workshop on
Density Estimation of Marine Mammals Using Passive Acoustics
CY SEP 10-13, 2009
CL Univ Pavia, Collegio Cairoli, ITALY
HO Univ Pavia
DE Detection; Towed arrays; Beaked whales
ID MESOPLODON-DENSIROSTRIS
AB The detection performance of a towed hydrophone array for deep-diving species is quantified by comparing detections of echolocation clicks from foraging groups of Blainville's beaked whales (Mesoplodon densirostris) from the TNO Delphinus array to detections from bottom-mounted hydrophones at the Atlantic Undersea Test and Evaluation Center (AUTEC) in the Bahamas. A beaked whale group detection probability of 40% is obtained at close ranges (R < 2000 m) with the Delphinus towed array, and a maximum detection range of 5000 m is measured. The detection function can be explained by models, when taking into account the range in rms source levels (200-220 dB re 1 mu Pa(2) m(2)), and the high system noise levels during the experiment. The model results suggest that detection ranges up to about 7 km are possible under favourable conditions, and demonstrate the effectiveness of using towed arrays to monitor deep-diving species, such as beaked whales. Published by Elsevier Ltd.
C1 [von Benda-Beckmann, A. M.; Lam, F. P. A.; Ainslie, M. A.; van Ijsselmuide, S. P.; Beerens, S. P.] TNO, Def Secur & Safety, Observat Syst, The Hague, Netherlands.
[Moretti, D. J.; Fulkerson, K.] USN, Undersea Warfare Ctr Div Newport, Newport, RI USA.
[Theriault, J.] Def R&D Canada Atlantic, Dartmouth, NS, Canada.
RP von Benda-Beckmann, AM (reprint author), TNO, Def Secur & Safety, Observat Syst, The Hague, Netherlands.
EM sander.vonbendabeckmann@tno.nl
OI Lam, Frans-Peter/0000-0001-9570-7567
NR 22
TC 8
Z9 8
U1 1
U2 8
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0003-682X
J9 APPL ACOUST
JI Appl. Acoust.
PD NOV
PY 2010
VL 71
IS 11
SI SI
BP 1027
EP 1035
DI 10.1016/j.apacoust.2010.05.015
PG 9
WC Acoustics
SC Acoustics
GA 654YM
UT WOS:000282207200006
ER
PT J
AU Moretti, D
Marques, TA
Thomas, L
DiMarzio, N
Dilley, A
Morrissey, R
McCarthy, E
Ward, J
Jarvis, S
AF Moretti, D.
Marques, T. A.
Thomas, L.
DiMarzio, N.
Dilley, A.
Morrissey, R.
McCarthy, E.
Ward, J.
Jarvis, S.
TI A dive counting density estimation method for Blainville's beaked whale
(Mesoplodon densirostris) using a bottom-mounted hydrophone field as
applied to a Mid-Frequency Active (MFA) sonar operation
SO APPLIED ACOUSTICS
LA English
DT Article; Proceedings Paper
CT 4th International Workshop on Detection, Classification and Localization
of Marine Mammals using Passive Acoustics/1st International Workshop on
Density Estimation of Marine Mammals Using Passive Acoustics
CY SEP 10-13, 2009
CL Univ Pavia, Collegio Cairoli, ITALY
HO Univ Pavia
DE Bioacoustics; Cue counting; Estimating animal abundance; Passive
acoustic monitoring
ID DIVING BEHAVIOR
AB We present a passive acoustic method for estimating the density of echolocating cetaceans that dive synchronously, based on isolation of dive starts using a field of distributed bottom-mounted hydrophones. The method assumes that all dive starts of the target species within a defined area are detected, and that independent estimates of dive rate and group size are available. We apply the method to estimate the density of Blainville's beaked whales (Mesoplodon densirostris) at the Atlantic Undersea Test and Evaluation Center (AUTEC) in the Bahamas during the time of a multi-ship active sonar exercise. Estimated densities for the 65 h before the exercise, 68 h during, 65 h after, and the final 43 h monitored were 16.99 (95% Cl 13.47-21.43), 4.76(3.78-6.00), 8.67(6.87-10.94), and 24.75 (19.62-31.23) respectively, illustrating a possible avoidance reaction. Results for the 65 h before were compared with those from the click count density estimation algorithm developed by Marques et al. [Marques T, Thomas L, Ward J, DiMarzio N, Tyack P. Estimating cetacean population density using fixed passive acoustic sensors. An example with Blainville's beaked whales. J Acoust Soc Am 2009;125(4):1982-1994]. The click count-based estimate was 19.23 animals/1000 km(2) (95% CI 12.69-29.13)-similar (13% higher), but with higher variance (CV 21% for click count method versus 12% for the dive count method). We discuss potential reasons for the differences, and compare the utility of the two methods. For both, obtaining reliable estimates of the factors that scale the measured quantity (dive starts or detected clicks) to density is the key hurdle. Defining the area monitored in the dive count method can also be problematic, particularly if the array is small. (C) 2010 Published by Elsevier Ltd.
C1 [Marques, T. A.; Thomas, L.] Univ St Andrews, Ctr Res Ecol & Environm Modelling, St Andrews, Fife, Scotland.
[Moretti, D.; DiMarzio, N.; Dilley, A.; Morrissey, R.; McCarthy, E.; Ward, J.; Jarvis, S.] USN, Undersea Warfare Ctr Div Newport, Newport, RI USA.
RP Moretti, D (reprint author), NUWC, Bldg 1351,Code 70T, Newport, RI 02841 USA.
EM david.moretti@navy.mil
RI Marques, Tiago/A-5530-2010;
OI Marques, Tiago/0000-0002-2581-1972; Thomas, Len/0000-0002-7436-067X
NR 20
TC 19
Z9 19
U1 0
U2 16
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0003-682X
J9 APPL ACOUST
JI Appl. Acoust.
PD NOV
PY 2010
VL 71
IS 11
SI SI
BP 1036
EP 1042
DI 10.1016/j.apacoust.2010.04.011
PG 7
WC Acoustics
SC Acoustics
GA 654YM
UT WOS:000282207200007
ER
PT J
AU Kjornrattanawanich, B
Windt, DL
Seely, JF
AF Kjornrattanawanich, Benjawan
Windt, David L.
Seely, John F.
TI Optical constants determination of samarium, holmium, and erbium in the
1.5-850 eV spectral range using a transmittance method
SO APPLIED OPTICS
LA English
DT Article
ID RARE-EARTH ELEMENTS; EXTREME-ULTRAVIOLET; LANTHANUM GROUP; ABSORPTION;
PHOTOABSORPTION; COEFFICIENTS; SCATTERING; NEODYMIUM; SCANDIUM; REGION
AB The optical constants beta and delta of the complex refractive index (n) over tilde = 1 - delta + i beta of Sm, Ho, and Er were obtained in the 1.5-850 eV energy range using a transmittance method. Thin films of Sm, Ho, and Er were deposited by magnetron sputtering, and transmittance was measured using synchrotron radiation under a high vacuum condition. All films were directly coated on Si photodiodes, which were used as coating substrates, as well as photon detectors. Si was used as capping layer while a thin W layer was used as barrier against interface diffusion between Si and the highly reactive rare earth elements. The constants beta were extracted from transmittance results, and the constants d were calculated based on measured beta values using the Kramers-Kronig formalism. Small deficiencies determined from the present data using the partial sum rules were partly attributed to the sputtered film densities that could be slightly lower than the bulk values. (C) 2010 Optical Society of America
C1 [Kjornrattanawanich, Benjawan] Univ Space Res Assoc, NSLS Beamline X24C, Brookhaven Natl Lab, Upton, NY 11973 USA.
[Windt, David L.] Reflect Xray Opt LLC, New York, NY 10027 USA.
[Seely, John F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Kjornrattanawanich, B (reprint author), Univ Space Res Assoc, NSLS Beamline X24C, Brookhaven Natl Lab, Upton, NY 11973 USA.
EM benjawan@bnl.gov
FU NASA [NNH07AF54I]; Office of Naval Research
FX This work was supported by the NASA project NNH07AF54I titled
"High-Reflectance Multilayer Coatings using Rare Earth Elements for
Solar EUV Imaging Applications," and by the Office of Naval Research.
NR 24
TC 5
Z9 5
U1 0
U2 13
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD NOV 1
PY 2010
VL 49
IS 31
BP 6006
EP 6013
DI 10.1364/AO.49.006006
PG 8
WC Optics
SC Optics
GA 673IN
UT WOS:000283653000031
ER
PT J
AU Alvarenga, J
Jarosz, PR
Schauerman, CM
Moses, BT
Landi, BJ
Cress, CD
Raffaelle, RP
AF Alvarenga, Jack
Jarosz, Paul R.
Schauerman, Chris M.
Moses, Brian T.
Landi, Brian J.
Cress, Cory D.
Raffaelle, Ryne P.
TI High conductivity carbon nanotube wires from radial densification and
ionic doping
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CHEMICAL TREATMENT; FIBERS; TRANSPORT; NETWORKS
AB Application of drawing dies to radially densify sheets of carbon nanotubes (CNTs) into bulk wires has shown the ability to control electrical conductivity and wire density. Simultaneous use of KAuBr(4) doping solution, during wire drawing, has led to an electrical conductivity in the CNT wire of 1.3 x10(6) S/m. Temperature-dependent electrical measurements show that conduction is dominated by fluctuation-assisted tunneling, and introduction of KAuBr(4) significantly reduces the tunneling barrier between individual nanotubes. Ultimately, the concomitant doping and densification process leads to closer packed CNTs and a reduced charge transfer barrier, resulting in enhanced bulk electrical conductivity. (c) 2010 American Institute of Physics. [doi:10.1063/1.3506703]
C1 [Alvarenga, Jack; Jarosz, Paul R.; Schauerman, Chris M.; Moses, Brian T.; Landi, Brian J.] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA.
[Cress, Cory D.] USN, Res Lab, Washington, DC 20375 USA.
[Raffaelle, Ryne P.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Alvarenga, J (reprint author), Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA.
EM brian.landi@rit.edu
RI Cress, Cory/A-8673-2009;
OI Cress, Cory/0000-0001-7563-6693
FU U.S. Government; Tyco Electronics; Lockheed Martin; NRL
FX The authors acknowledge material contributions from Nanocomp
Technologies, Inc., as well as financial support by the U.S. Government,
Tyco Electronics, and Lockheed Martin. C. D. Cress acknowledges
financial support from the NRL Karles Distinguished Scholar Fellowship
Program.
NR 21
TC 28
Z9 30
U1 2
U2 42
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 NOV 1
PY 2010
VL 97
IS 18
AR 182106
DI 10.1063/1.3506703
PG 3
WC Physics, Applied
SC Physics
GA 676RK
UT WOS:000283934100039
ER
PT J
AU Gaball, C
Lovald, S
Khraishi, T
Eisbach, K
Baack, B
AF Gaball, Curtis
Lovald, Scott
Khraishi, Tariq
Eisbach, Karl
Baack, Bret
TI Engineering Analysis of an Unreported Complication of Septoplasty
SO ARCHIVES OF FACIAL PLASTIC SURGERY
LA English
DT Article
AB Objectives: To describe a cause of recurrent nasal obstructive symptoms after septoplasties including the creation of a sizable submucous window and to suggest treatments for this complication.
Methods: Case report of a woman presenting with side-changing nasal dyspnea approximately 1 year after undergoing septoplasty and engineering analysis of nasal cavity airflow. We created a computer model of the airway, analyzed varying sizes of surgical defects, and optimized the geometry of the submucous window.
Results: An optimum area of resection to maximize the area of cartilage and/or bone resected and to minimize deflection of the septal area of iatrogenic litheness is a rectangular shape approximately 44 mm long by 12 mm high in our model.
Conclusions: A large submucous window can result in obstruction of nasal airflow after septoplasty owing to displacement of this compliant area with respiration under the forces described in the Bernoulli theorem. Treatment may include turbinate reduction and/or septal reconstruction.
C1 [Gaball, Curtis] USN, Dept Otolaryngol, San Diego Med Ctr, San Diego, CA 92134 USA.
[Lovald, Scott] Exponent Inc, Philadelphia, PA USA.
[Khraishi, Tariq] Univ New Mexico, Dept Mech Engn, Albuquerque, NM 87131 USA.
[Baack, Bret] Univ New Mexico, Dept Surg, Albuquerque, NM 87131 USA.
[Gaball, Curtis; Eisbach, Karl] Eisbach Facial Plast Surg, Albuquerque, NM USA.
RP Gaball, C (reprint author), USN, Dept Otolaryngol, San Diego Med Ctr, 34520 Bob Wilson Dr,Suite 200, San Diego, CA 92134 USA.
NR 15
TC 0
Z9 0
U1 0
U2 0
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 515 N STATE ST, CHICAGO, IL 60654-0946 USA
SN 1521-2491
J9 ARCH FACIAL PLAST S
JI Arch. Facial Plast. Surg.
PD NOV-DEC
PY 2010
VL 12
IS 6
BP 385
EP 392
DI 10.1001/archfacial.2010.84
PG 8
WC Surgery
SC Surgery
GA 680KH
UT WOS:000284230300008
PM 21079115
ER
PT J
AU Nash, WP
Vasterling, J
Ewing-Cobbs, L
Horn, S
Gaskin, T
Golden, J
Riley, WT
Bowles, SV
Favret, J
Lester, P
Koffman, R
Farnsworth, LC
Baker, DG
AF Nash, William P.
Vasterling, Jennifer
Ewing-Cobbs, Linda
Horn, Sarah
Gaskin, Thomas
Golden, John
Riley, William T.
Bowles, Stephen V.
Favret, James
Lester, Patricia
Koffman, Robert
Farnsworth, Laura C.
Baker, Dewleen G.
TI Consensus Recommendations for Common Data Elements for Operational
Stress Research and Surveillance: Report of a Federal Interagency
Working Group
SO ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
LA English
DT Article
DE Combat disorders; Military personnel; Preventive psychiatry;
Rehabilitation; Research design; Stress; psychological
ID MENTAL-HEALTH; POSTTRAUMATIC GROWTH; MILITARY PERSONNEL; COMBAT
DEPLOYMENT; IRAQ-WAR; AFGHANISTAN; DISORDERS; INVENTORY; RESILIENCE;
PREVENTION
AB Empirical studies and surveillance projects increasingly assess and address potentially adverse psychological health outcomes from the stress of military operations, but no standards yet exist for common concept definitions, variable categories, and measures. This article reports the consensus recommendations of the federal interagency Operational Stress Working Group for common data elements to be used in future operational stress research and surveillance with the goal of improving comparability across studies. Operational stress encompasses more than just combat; it occurs everywhere service members and their families live and work. Posttraumatic stress is not the only adverse mental or behavioral health outcome of importance. The Operational Stress Working Group contends that a primary goal of operational stress research and surveillance is to promote prevention of adverse mental and behavioral outcomes, especially by recognizing the preclinical and subclinical states of distress and dysfunction that portend a risk for failure of role performance or future mental disorders. Recommendations for data elements are divided into 3 tiers: core, supplemental, and emerging, including variable domains and specific measures for assessing operational stressor exposures, stress outcomes, moderating factors, and mediating processes. Attention is drawn to the emerging construct of stress injury as a generic term for subclinical operational stress, and to emerging data elements addressing biological, psychological, and spiritual mediators of risk. Methodologies are needed for identifying preclinical and subclinical states of distress or dysfunction that are markers of risk for failure of role performance and future clinical mental disorders, so that targeted prevention interventions can be developed and evaluated.
C1 [Nash, William P.; Horn, Sarah; Golden, John] Def Ctr Excellence Psychol Hlth & Traumat Brain I, Vet Adm, Arlington, VA USA.
[Nash, William P.; Baker, Dewleen G.] Vet Adm San Diego Healthcare Syst, Ctr Excellence Stress & Mental Hlth, San Diego, CA USA.
[Vasterling, Jennifer] VA Boston Healthcare Syst, Boston, MA USA.
[Vasterling, Jennifer] Natl Ctr PTSD, Boston, MA USA.
[Ewing-Cobbs, Linda] Univ Texas Houston, Houston, TX USA.
[Ewing-Cobbs, Linda] Childrens Learning Inst, Dan L Duncan Neurodev Clin, Houston, TX USA.
[Nash, William P.; Baker, Dewleen G.] Univ Calif San Diego, San Diego, CA 92103 USA.
[Gaskin, Thomas] Marine Corps, Headquarters, Combat & Operat Stress Control, Quantico, VA USA.
[Riley, William T.] NIMH, Bethesda, MD 20892 USA.
[Bowles, Stephen V.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Favret, James] USAF, Washington, DC 20330 USA.
[Lester, Patricia] Univ Calif Los Angeles, Semel Inst Neurosc & Human Behav, Los Angeles, CA USA.
[Koffman, Robert] USN, Bur Med & Surg, Washington, DC USA.
[Farnsworth, Laura C.] San Jose State Univ, San Jose, CA 95192 USA.
RP Nash, WP (reprint author), POB 10920, Burke, VA 22015 USA.
EM william.nash@opstress.net
NR 69
TC 20
Z9 20
U1 3
U2 7
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0003-9993
J9 ARCH PHYS MED REHAB
JI Arch. Phys. Med. Rehabil.
PD NOV
PY 2010
VL 91
IS 11
BP 1673
EP 1683
DI 10.1016/j.apmr.2010.06.035
PG 11
WC Rehabilitation; Sport Sciences
SC Rehabilitation; Sport Sciences
GA 681UQ
UT WOS:000284346400007
PM 21044711
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, D
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Brandt, TJ
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Dermer, CD
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Favuzzi, C
Fegan, SJ
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guiriec, S
Hadasch, D
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Jean, P
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Garde, ML
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Martin, P
Mazziotta, MN
McEnery, JE
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ripken, J
Ritz, S
Romani, RW
Sadrozinski, HFW
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Strong, AW
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Dermer, C. D.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Favuzzi, C.
Fegan, S. J.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Jean, P.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Garde, M. Llena
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Martin, P.
Mazziotta, M. N.
McEnery, J. E.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ripken, J.
Ritz, S.
Romani, R. W.
Sadrozinski, H. F. -W.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI Detection of the Small Magellanic Cloud in gamma-rays with Fermi/LAT
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE acceleration of particles; cosmic rays; Magellanic Clouds; gamma rays:
general
ID ENERGY COSMIC-RAYS; ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE;
ALL-SKY SURVEY; X-RAY; INFRARED-EMISSION; STAR-FORMATION; DRIVEN DYNAMO;
SOURCE LIST; GALAXY
AB Context. The flux of gamma rays with energies greater than 100 MeV is dominated by diffuse emission coming from cosmic-rays (CRs) illuminating the interstellar medium (ISM) of our Galaxy through the processes of Bremsstrahlung, pion production and decay, and inverse-Compton scattering. The study of this diffuse emission provides insight into the origin and transport of cosmic rays.
Aims. We searched for gamma-ray emission from the Small Magellanic Cloud (SMC) in order to derive constraints on the cosmic-ray population and transport in an external system with properties different from the Milky Way.
Methods. We analysed the first 17 months of continuous all-sky observations by the Large Area Telescope (LAT) of the Fermi mission to determine the spatial distribution, flux and spectrum of the gamma-ray emission from the SMC. We also used past radio synchrotron observations of the SMC to study the population of CR electrons specifically.
Results. We obtained the first detection of the SMC in high-energy gamma rays, with an integrated >100 MeV flux of (3.7 +/- 0.7) x 10(-8) ph cm(-2) s(-1), with additional systematic uncertainty of <= 16%. The emission is steady and from an extended source similar to 3 degrees in size. It is not clearly correlated with the distribution of massive stars or neutral gas, nor with known pulsars or supernova remnants, but a certain correlation with supergiant shells is observed.
Conclusions. The observed flux implies an upper limit on the average CR nuclei density in the SMC of similar to 15% of the value measured locally in the Milky Way. The population of high-energy pulsars of the SMC may account for a substantial fraction of the gamma-ray flux, which would make the inferred CR nuclei density even lower. The average density of CR electrons derived from radio synchrotron observations is consistent with the same reduction factor but the uncertainties are large. From our current knowledge of the SMC, such a low CR density does not seem to be due to a lower rate of CR injection and rather indicates a smaller CR confinement volume characteristic size.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, CNRS, Serv Astrophys,Lab AIM,CEA IRFU, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Jean, P.; Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brandt, T. J.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Caliandro, G. A.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Celik, Oe.; Gehrels, N.; Harding, A. K.; Hays, E.; McEnery, J. E.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Conrad, J.; Garde, M. Llena; Ripken, J.; Yang, Z.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, S-10691 Stockholm, Sweden.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Giroletti, M.] INAF Inst Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kerr, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Martin, P.; Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Scargle, J. D.] NASA, Div Space Sci, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Royal Inst Technol KTH, Dept Phys, S-10691 Stockholm, Sweden.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, S-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
EM jean@cesr.fr; knodlseder@cesr.fr; martinp@mpe.mpg.de
RI Reimer, Olaf/A-3117-2013; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Tosti, Gino/E-9976-2013; Rando, Riccardo/M-7179-2013;
Hays, Elizabeth/D-3257-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Johnson,
Neil/G-3309-2014; Funk, Stefan/B-7629-2015; Gargano, Fabio/O-8934-2015;
Johannesson, Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015;
Moskalenko, Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
OI Reimer, Olaf/0000-0001-6953-1385; Thompson, David/0000-0001-5217-9135;
lubrano, pasquale/0000-0003-0221-4806; Morselli,
Aldo/0000-0002-7704-9553; giglietto, nicola/0000-0002-9021-2888; Funk,
Stefan/0000-0002-2012-0080; Gargano, Fabio/0000-0002-5055-6395;
Johannesson, Gudlaugur/0000-0003-1458-7036; Loparco,
Francesco/0000-0002-1173-5673; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Giordano, Francesco/0000-0002-8651-2394;
Caraveo, Patrizia/0000-0003-2478-8018; Sgro',
Carmelo/0000-0001-5676-6214; Rando, Riccardo/0000-0001-6992-818X;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Giroletti,
Marcello/0000-0002-8657-8852; Gasparrini, Dario/0000-0002-5064-9495;
Tramacere, Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
NR 65
TC 40
Z9 40
U1 0
U2 0
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 0004-6361
EI 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV-DEC
PY 2010
VL 523
AR A46
DI 10.1051/0004-6361/201014855
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 695BW
UT WOS:000285346600050
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Atwood, WB
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Cannon, A
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Drlica-Wagner, A
Dubois, R
Favuzzi, C
Fegan, SJ
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Germani, S
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Guiriec, S
Gustafsson, M
Hadasch, D
Harding, AK
Hayashi, K
Hayashida, M
Hays, E
Healey, SE
Jean, P
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, TJ
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Martin, P
Mazziotta, MN
Mehault, J
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pepe, M
Persic, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Ritz, S
Romani, RW
Sadrozinski, HFW
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Strigari, L
Strong, AW
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vianello, G
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Cannon, A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Charles, E.
Chekhtman, A.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Drlica-Wagner, A.
Dubois, R.
Favuzzi, C.
Fegan, S. J.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Harding, A. K.
Hayashi, K.
Hayashida, M.
Hays, E.
Healey, S. E.
Jean, P.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, T. J.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Martin, P.
Mazziotta, M. N.
Mehault, J.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pepe, M.
Persic, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Ritz, S.
Romani, R. W.
Sadrozinski, H. F. -W.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Strigari, L.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vianello, G.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ziegler, M.
TI Fermi Large Area Telescope observations of Local Group galaxies:
detection of M31 and search for M33
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE Local Group; cosmic rays; gamma rays: galaxies
ID LARGE-MAGELLANIC-CLOUD; GAMMA-RAY EMISSION; STAR-FORMATION; NGC 253;
NEUTRAL HYDROGEN; NEARBY GALAXIES; SPACE-TELESCOPE; ATOMIC GAS;
STARBURST; DISTANCE
AB Context. Cosmic rays (CRs) can be studied through the galaxy-wide gamma-ray emission that they generate when propagating in the interstellar medium. The comparison of the diffuse signals from different systems may inform us about the key parameters in CR acceleration and transport.
Aims. We aim to determine and compare the properties of the cosmic-ray-induced gamma-ray emission of several Local Group galaxies.
Methods. We use 2 years of nearly continuous sky-survey observations obtained with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope to search for gamma-ray emission from M31 and M33. We compare the results with those for the Large Magellanic Cloud, the Small Magellanic Cloud, the Milky Way, and the starburst galaxies M82 and NGC 253.
Results. We detect a gamma-ray signal at 5 sigma significance in the energy range 200 MeV-20 GeV that is consistent with originating from M31. The integral photon flux above 100 MeV amounts to (9.1 +/- 1.9(stat) +/- 1.0(sys)) x 10(-9) ph cm(-2) s(-1). We find no evidence for emission from M33 and derive an upper limit on the photon flux > 100 MeV of 5.1 x 10(-9) ph cm(-2) s(-1) (2 sigma). Comparing these results to the properties of other Local Group galaxies, we find indications of a correlation between star formation rate and gamma-ray luminosity that also holds for the starburst galaxies.
Conclusions. The gamma-ray luminosity of M31 is about half that of the Milky Way, which implies that the ratio between the average CR densities in M31 and the Milky Way amounts to xi = 0.35 +/- 0.25. The observed correlation between gamma-ray luminosity and star formation rate suggests that the flux of M33 is not far below the current upper limit from the LAT observations.
C1 [Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Strigari, L.; Tanaka, T.; Thayer, J. B.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Waite, A. P.; Wang, P.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Strigari, L.; Tanaka, T.; Thayer, J. B.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, CNRS, CEA IRFU,Lab AIM,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.; Persic, M.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Gustafsson, M.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Jean, P.; Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brandt, T. J.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Dept Phys, Columbus, OH 43210 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Hadasch, D.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Cannon, A.; Celik, Oe.; Harding, A. K.; Hays, E.; Johnson, T. J.; Moiseev, A. A.; Thompson, D. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cannon, A.] Univ Coll Dublin, Dublin 4, Ireland.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe.; Moiseev, A. A.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Yang, Z.] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
[Conrad, J.; Yang, Z.] Oskar Klein Ctr Cosmoparticle Phys, S-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Frailis, M.; Persic, M.] Osserv Astron Trieste, Ist Nazl Astrofis, I-34143 Trieste, Italy.
[Fukazawa, Y.; Hayashi, K.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Giroletti, M.] INAF, Ist Radioastron, I-40129 Bologna, Italy.
[Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Smith, D. A.] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Johnson, T. J.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Johnson, T. J.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Martin, P.; Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Ozaki, M.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibaldo, L.] ICREA, Barcelona, Spain.
[Tramacere, A.; Vianello, G.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
RP Abdo, AA (reprint author), USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
EM bechtol@stanford.edu; jean@cesr.fr; knodlseder@cesr.fr;
martinp@mpe.mpg.de
RI Gargano, Fabio/O-8934-2015; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Ozaki, Masanobu/K-1165-2013;
Rando, Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Funk,
Stefan/B-7629-2015; Loparco, Francesco/O-8847-2015; Johannesson,
Gudlaugur/O-8741-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Orlando, E/R-5594-2016;
OI Gargano, Fabio/0000-0002-5055-6395; Thompson, David/0000-0001-5217-9135;
lubrano, pasquale/0000-0003-0221-4806; Morselli,
Aldo/0000-0002-7704-9553; giglietto, nicola/0000-0002-9021-2888; Reimer,
Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Giroletti,
Marcello/0000-0002-8657-8852; Tramacere, Andrea/0000-0002-8186-3793;
Baldini, Luca/0000-0002-9785-7726; Loparco,
Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; De Angelis, Alessandro/0000-0002-3288-2517;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214; Rando,
Riccardo/0000-0001-6992-818X; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577
NR 47
TC 49
Z9 49
U1 0
U2 1
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV-DEC
PY 2010
VL 523
AR L2
DI 10.1051/0004-6361/201015759
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 695BW
UT WOS:000285346600003
ER
PT J
AU Fludra, A
Warren, H
AF Fludra, A.
Warren, H.
TI Radiative and magnetic properties of solar active regions II. Spatially
resolved analysis of O V 62.97 nm transition region emission
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE Sun: UV radiation; Sun: surface magnetism; Sun: transition region; Sun:
corona; magnetic fields
ID CORONAL DIAGNOSTIC SPECTROMETER; X-RAY; OSCILLATIONS; SOHO
AB Context. Global relationships between the photospheric magnetic flux and the extreme ultraviolet emission integrated over active region area have been studied in a previous paper by Fludra & Ireland (2008, A&A, 483, 609). Spatially integrated EUV line intensities are tightly correlated with the total unsigned magnetic flux, and yet these global power laws have been shown to be insufficient for accurately determining the coronal heating mechanism owing to the mathematical ill-conditioning of the inverse problem.
Aims. Our aim is to establish a relationship between the EUV line intensities and the photospheric magnetic flux density on small spatial scales in active regions and investigate whether it provides a way of identifying the process that heats the coronal loops.
Methods. We compare spatially resolved EUV transition region emission and the photospheric magnetic flux density. This analysis is based on the O V 62.97 nm line recorded by the SOHO Coronal Diagnostic Spectrometer (CDS) and SOHO MDI magnetograms for six solar active regions. The magnetic flux density phi is converted to a simulated O V intensity using a model relationship I(phi, L) = C phi L-delta(lambda), where the loop length L is obtained from potential magnetic field extrapolations. This simulated spatial distribution of O V intensities is convolved with the CDS instrument's point spread function and compared pixel by pixel with the observed O V line intensity. Parameters delta and lambda are derived to give the best fit for the observed and simulated intensities.
Results. Spatially-resolved analysis of the transition region emission reveals the complex nature of the heating processes in active regions. In some active regions, particularly large, local intensity enhancements up to a factor of five are present. When areas with O V intensities above 3000 erg cm(-2) s(-1) sr(-1) are ignored, a power law has been fitted to the relationship between the local O V line intensity and the photospheric magnetic flux density in each active region. The average power index delta from all regions is 0.4 +/- 0.1 and lambda = -0.15 +/- 0.07. However, the scatter of intensities in all regions is significantly greater than +/- 3 sigma from the fitted model. We therefore determine for the first time an empirical lower boundary for the I-OV - phi relationship that is the same for five active regions. We postulate that it represents a basal heating. Because this boundary is present in the spatially-resolved data, this is compelling proof that the magnetic field is one of the major factors contributing to the basal component of the heating of the coronal plasma. We discuss the implications for the diagnostics of the coronal heating mechanism.
C1 [Fludra, A.] STFC Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England.
[Warren, H.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Fludra, A (reprint author), STFC Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England.
EM andrzej.fludra@stfc.ac.uk; harry.warren@nrl.navy.mil
FU UK Science and Technology Facilities Council
FX This work was supported by the UK Science and Technology Facilities
Council. SOHO is a project of international cooperation between ESA and
NASA. CDS was built and is operated by a consortium led by the
Rutherford Appleton Laboratory and including the Mullard Space Science
Laboratory, the NASA Goddard Space Flight Center, Oslo University and
the Max-Planck-Institute for Extraterrestrial Physics, Garching. The
authors thank Dr T. Hoeksema for information on the performance of the
SOHO MDI instrument.
NR 21
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U1 0
U2 1
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 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV-DEC
PY 2010
VL 523
AR A47
DI 10.1051/0004-6361/201014261
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 695BW
UT WOS:000285346600051
ER
PT J
AU Riquelme, D
Bronfman, L
Mauersberger, R
May, J
Wilson, TL
AF Riquelme, D.
Bronfman, L.
Mauersberger, R.
May, J.
Wilson, T. L.
TI A survey of the Galactic center region in HCO+, (HCO+)-C-13, and SiO
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE ISM: clouds; ISM: molecules; Galaxy: center; surveys
ID CENTER MOLECULAR CLOUDS; CARBON-MONOXIDE; INTERSTELLAR-MEDIUM; NEARBY
GALAXIES; LINE EMISSION; INNER GALAXY; DENSE GAS; LOOPS; HCN; CO
AB Aims. A large-scale survey of the Galactic center region in the 3 mm rotational transitions of SiO, HCO+ and (HCO+)-C-13 (beamsize similar to 3'.6) was conducted to provide an estimate of cloud conditions, heating mechanisms, chemistry, and other properties.
Methods. Using the NANTEN 4 m telescope from Nagoya University, a region between -5 degrees.75 < l < 5 degrees.6 and -0 degrees.68 < b < 1 degrees.3 was mapped in the J = 1 -> 0 lines of HCO+ and (HCO+)-C-13 and in the J = 2 -> 1 line of SiO with a spacing of 3'.75 (HCO+) and 1'.875 (SiO and (HCO+)-C-13).
Results. Velocity channel maps, longitude-velocity maps, and latitude-velocity maps are presented. We identify 51 molecular clouds; 33 of them belong to the Galactic center and 18 to disk gas. We derive an average of the luminosity ratio of SiO(J = 2 -> 1)/CO(J = 1 -> 0) in clouds belonging to the Galactic center of 4.9 x 10(-3) and for disk clouds of 3.4 x 10(-3). The luminosity ratio of HCO+(J = 1 -> 0)/CO(J = 1 -> 0) in the Galactic center is 3.5 x 10(-2), and for disk clouds it is 1.5 x 10(-2). We can distinguish clearly between regions where the SiO or HCO+ dominate.
C1 [Riquelme, D.; Mauersberger, R.] IRAM, E-18012 Granada, Spain.
[Riquelme, D.; Bronfman, L.; May, J.] Univ Chile, Dept Astron, Santiago, Chile.
[Mauersberger, R.] Joint ALMA Observ, Vitacura, Santiago Chile, Chile.
[Wilson, T. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Riquelme, D (reprint author), IRAM, Av Div Pastora 7,Local 20, E-18012 Granada, Spain.
EM riquelme@iram.es
RI Bronfman, Leonardo/H-9544-2013
OI Bronfman, Leonardo/0000-0002-9574-8454
FU Chilean Center for Astrophysics FONDAP [N 15010003]; Center of
Excellence in Astrophysics and Associated Technologies [PFB 06]; DGI
[AYA 2008-06181-C02-02]
FX We acknowledge support by the Chilean Center for Astrophysics FONDAP N
15010003 and by Center of Excellence in Astrophysics and Associated
Technologies PFB 06. D. R. and R. M. were supported by DGI grant AYA
2008-06181-C02-02. We thank Fernando Olmos for help with the
observations. We are grateful to the personnel and students from Nagoya
University who supported observations at the telescope and keep the data
reduction pack at Cerro Calan. We also want to thanks Jesus
Martin-Pintado for helpful discussions. We thank the referee, Y. Fukui,
and the editor of A&A, M. Walmsley, for valuable comments.
NR 65
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U1 0
U2 1
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV-DEC
PY 2010
VL 523
AR A45
DI 10.1051/0004-6361/200913359
PG 180
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 695BW
UT WOS:000285346600049
ER
PT J
AU Patsourakos, S
Vourlidas, A
Kliem, B
AF Patsourakos, S.
Vourlidas, A.
Kliem, B.
TI Toward understanding the early stages of an impulsively accelerated
coronal mass ejection SECCHI observations
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE Sun: coronal mass ejections (CMEs); Sun: flares
ID EXTREME-ULTRAVIOLET WAVE; MAGNETIC-FLUX ROPE; QUADRATURE OBSERVATIONS;
LASCO OBSERVATIONS; ENERGY-RELEASE; STEREO; FLARE; MODEL; CME; EIT
AB Context. The expanding magnetic flux in coronal mass ejections (CMEs) often forms a cavity. Studies of CME cavities have so far been limited to the pre-event configuration to evolved CMEs at great heights, and to two-dimensional imaging data.
Aims. Quantitative analysis of three-dimensional cavity evolution at CME onset can reveal information that is relevant to the genesis of the eruption.
Methods. A spherical model was simultaneously fit to Solar Terrestrial Relations Observatory (STEREO) Extreme Ultraviolet Imager (EUVI) and Inner Coronagraph (COR1) data of an impulsively accelerated CME on 25 March 2008, which displays a well-defined extreme ultraviolet (EUV) and white-light cavity of nearly circular shape already at low heights h approximate to 0.2 R-circle dot. The center height h(t) and radial expansion r(t) of the cavity were obtained in the whole height range of the main acceleration. We interpret them as the axis height and as a quantity proportional to the minor radius of a flux rope.
Results. The three-dimensional expansion of the CME exhibits two phases in the course of its main upward acceleration. From the first h and r data points, taken shortly after the onset of the main acceleration, the erupting flux shows an overexpansion compared to its rise, as expressed by the decrease in the aspect ratio from kappa = h/r approximate to 3 to kappa approximate to (1.5-2). This phase is approximately coincident with the impulsive rise in the acceleration and is followed by a phase of very gradual change in the aspect ratio (a nearly self-similar expansion) toward kappa similar to 2.5 at h similar to 10 R-circle dot. The initial overexpansion of the CME cavity can be caused by flux conservation around a rising flux rope of decreasing axial current and by the addition of flux to a growing, or by even newly formed, flux rope by magnetic reconnection. Further analysis will be required to decide which of these contributions is dominant. The data also suggest that the horizontal component of the impulsive cavity expansion (parallel to the solar surface) triggers the associated EUV wave, which subsequently detaches from the CME volume.
C1 [Patsourakos, S.] Univ Ioannina, Dept Phys, Sect Astrogeophys, GR-45110 Ioannina, Greece.
[Vourlidas, A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Kliem, B.] Univ Coll London, Mullard Space Sci Lab, Surrey, England.
[Kliem, B.] Univ Potsdam, Inst Phys & Astron, Potsdam, Germany.
RP Patsourakos, S (reprint author), Univ Ioannina, Dept Phys, Sect Astrogeophys, POB 1186, GR-45110 Ioannina, Greece.
EM spatsour@cc.uoi.gr; vourlidas@nrl.navy.mil; bkliem@uni-potsdam.de
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
FU NASA [NNH06AD58I, NNX08AG44G]; STFC; DFG
FX The SECCHI data used here were produced by an international consortium
of the Naval Research Laboratory (USA), Lockheed Martin Solar and
Astrophysics Lab (USA), NASA Goddard Space Flight Center (USA),
Rutherford Appleton Laboratory (UK), University of Birmingham (UK),
Max-Planck-Institut for Solar System Research (Germany), Centre Spatiale
de Liege (Belgium), Institut d'Optique Theorique et Appliquee (France),
and Institut d'Astrophysique Spatiale (France). We gratefully
acknowledge very constructive discussions with T. G. Forbes about cavity
expansion, which significantly helped to interpret the results. We also
thank the referee for helpful comments. This work was suported by NASA
grants NNH06AD58I and NNX08AG44G, by an STFC Rolling Grant, and by the
DFG.
NR 59
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U1 0
U2 2
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD NOV
PY 2010
VL 522
AR A100
DI 10.1051/0004-6361/200913599
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679HS
UT WOS:000284153100106
ER
PT J
AU Landi, E
Klimchuk, JA
AF Landi, E.
Klimchuk, J. A.
TI ON THE ISOTHERMALITY OF SOLAR PLASMAS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE methods: data analysis; stars: coronae; Sun: corona; Sun: UV radiation;
Sun: X-rays, gamma rays; techniques: spectroscopic
ID ACTIVE-REGION LOOPS; IMAGING SPECTROMETER OBSERVATIONS; EMISSION-LINES;
ATOMIC DATABASE; CORONAL LOOPS; TEMPERATURE-MEASUREMENTS; THERMAL
STRUCTURE; QUIET-SUN; TRACE; CHIANTI
AB Recent measurements have shown that the quiet unstructured solar corona observed at the solar limb is close to isothermal, at a temperature that does not appear to change over wide areas or with time. Some individual active region loop structures have also been found to be nearly isothermal both along their axis and across their cross section. Even a complex active region observed at the solar limb has been found to be composed of three distinct isothermal plasmas. If confirmed, these results would pose formidable challenges to the current theoretical understanding of the thermal structure and heating of the solar corona. For example, no current theoretical model can explain the excess densities and lifetimes of many observed loops if the loops are in fact isothermal. All of these measurements are based on the so-called emission measure (EM) diagnostic technique that is applied to a set of optically thin lines under the assumption of isothermal plasma. It provides simultaneous measurement of both the temperature and EM. In this work, we develop a new method to quantify the uncertainties in the technique and to rigorously assess its ability to discriminate between isothermal and multithermal plasmas. We define a formal measure of the uncertainty in the EM diagnostic technique that can easily be applied to real data. We here apply it to synthetic data based on a variety of assumed plasma thermal distributions and develop a method to quantitatively assess the degree of multithermality of a plasma.
C1 [Landi, E.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
[Landi, E.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Klimchuk, J. A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Landi, E (reprint author), Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
RI Landi, Enrico/H-4493-2011; Klimchuk, James/D-1041-2012
OI Klimchuk, James/0000-0003-2255-0305
FU NASA; ONR
FX The work of E.L. is supported by several NASA grants. The work of J.A.K.
was supported by the NASA Living With a Star Program and by ONR. The
idea for this study was born at a meeting of the International Space
Science Institute (ISSI) working group on The Role of Spectroscopic and
Imaging Data in Understanding Coronal Heating led by Dr. Susanna
Parenti.
NR 28
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Z9 16
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 NOV 1
PY 2010
VL 723
IS 1
BP 320
EP 328
DI 10.1088/0004-637X/723/1/320
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678OX
UT WOS:000284090100026
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bonamente, E
Borgland, AW
Bouvier, A
Brandt, TJ
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cecchi, C
Celik, O
Chaty, S
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Dermer, CD
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Favuzzi, C
Fegan, SJ
Ferrara, EC
Frailis, M
Fukazawa, Y
Fusco, P
Gargano, F
Gehrels, N
Germani, S
Giglietto, N
Giordano, F
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hill, AB
Horan, D
Hughes, RE
Itoh, R
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Livingstone, M
Garde, ML
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Rodriguez, AY
Romani, RW
Roth, M
Sadrozinski, HFW
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wallace, E
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cecchi, C.
Celik, Oe
Chaty, S.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Dermer, C. D.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Frailis, M.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gehrels, N.
Germani, S.
Giglietto, N.
Giordano, F.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hill, A. B.
Horan, D.
Hughes, R. E.
Itoh, R.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Livingstone, M.
Garde, M. Llena
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Sadrozinski, H. F. -W.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wallace, E.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI FERMI LARGE AREA TELESCOPE OBSERVATION OF A GAMMA-RAY SOURCE AT THE
POSITION OF ETA CARINAE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE binaries: general; stars: individual (Eta Carinae); supergiants
ID PROPORTIONAL COUNTER ARRAY; SOURCE LIST; EMISSION; CATALOG; PULSARS;
CALIBRATION; BINARIES; SEARCHES; STARS; LAT
AB The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope detected a gamma-ray source that is spatially consistent with the location of Eta Carinae. This source has been persistently bright since the beginning of the LAT survey observations (from 2008 August to 2009 July, the time interval considered here). The gamma-ray signal is detected significantly throughout the LAT energy band (i.e., up to similar to 100 GeV). The 0.1-100 GeV energy spectrum is well represented by a combination of a cutoff power-law model (<10 GeV) and a hard power-law component (>10 GeV). The total flux (>100 MeV) is 3.7(-0.1)(+0.3) x 10(-7) photons s(-1) cm(-2), with additional systematic uncertainties of 10%, and consistent with the average flux measured by AGILE. The light curve obtained by Fermi is consistent with steady emission. Our observations do not confirm the presence of a gamma-ray flare in 2008 October, as reported by Tavani et al., although we cannot exclude that a flare lasting only a few hours escaped detection by the Fermi LAT. We also do not find any evidence for gamma-ray variability that correlates with the large X-ray variability of Eta Carinae observed during 2008 December and 2009 January. We are thus not able to establish an unambiguous identification of the LAT source with Eta Carinae.
C1 [Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Chaty, S.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CNRS, CEA Saclay,CEA,IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Brandt, T. J.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.; Wallace, E.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe; Ferrara, E. C.; Gehrels, N.; Harding, A. K.; Hays, E.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Garde, M. Llena; Yang, Z.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Garde, M. Llena; Yang, Z.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Ctr Etud Nucl Bordeaux Gradignan, CNRS, UMR 5797, IN2P3, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Astrofis, Osservatorio Astron Trieste, I-34143 Trieste, Italy.
[Fukazawa, Y.; Hanabata, Y.; Itoh, R.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Hill, A. B.] Univ Grenoble 1, CNRS, UMR 5571, Lab Astrophys Grenoble LAOG, F-38041 Grenoble 09, France.
[Jackson, M. S.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Livingstone, M.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Ozaki, M.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Abdo, AA (reprint author), Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
EM Jurgen.Knodlseder@cesr.fr; hirotaka@hep01.hepl.hiroshima-u.ac.jp
RI Johnson, Neil/G-3309-2014; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; Johannesson, Gudlaugur/O-8741-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
Rando, Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Thompson,
David/D-2939-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Ozaki, Masanobu/K-1165-2013
OI Hill, Adam/0000-0003-3470-4834; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Chaty, Sylvain/0000-0002-5769-8601;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Berenji,
Bijan/0000-0002-4551-772X; Tramacere, Andrea/0000-0002-8186-3793;
Baldini, Luca/0000-0002-9785-7726; Loparco,
Francesco/0000-0002-1173-5673; Gargano, Fabio/0000-0002-5055-6395;
Johannesson, Gudlaugur/0000-0003-1458-7036; Moskalenko,
Igor/0000-0001-6141-458X; Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214; SPINELLI,
Paolo/0000-0001-6688-8864; Rando, Riccardo/0000-0001-6992-818X; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385;
FU European Community [ERC-StG-200911]; International Doctorate on
Astroparticle Physics (IDAPP)
FX Funded by contract ERC-StG-200911 from the European Community.;
Partially supported by the International Doctorate on Astroparticle
Physics (IDAPP) program.
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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 NOV 1
PY 2010
VL 723
IS 1
BP 649
EP 657
DI 10.1088/0004-637X/723/1/649
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678OX
UT WOS:000284090100057
ER
PT J
AU Moore, MH
Ferrante, RF
Moore, WJ
Hudson, R
AF Moore, Marla H.
Ferrante, Robert F.
Moore, W. James
Hudson, Reggie
TI INFRARED SPECTRA AND OPTICAL CONSTANTS OF NITRILE ICES RELEVANT TO
TITAN'S ATMOSPHERE
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE catalogs; infrared: planetary systems; methods: laboratory; planets and
satellites: individual (Titan); techniques: spectroscopic
ID DIFFERENT TEMPERATURES; REFRACTIVE-INDEXES; CO2; STRATOSPHERE;
INTENSITIES; HC3N; DENSITIES; REGION; C2N2; C4N2
AB Spectra and optical constants of nitrile ices known or suspected to be in Titan's atmosphere are presented from 2.0 to 333.3 mu m (similar to 5000-30 cm(-1)). These results are relevant to the ongoing modeling of Cassini CIRS observations of Titan's winter pole. Ices studied are: HCN, hydrogen cyanide; C2N2, cyanogen; CH3CN, acetonitrile; C2H5CN, propionitrile; and HC3N, cyanoacetylene. For each of these molecules, we also report new cryogenic measurements of the real refractive index, n, determined in both the amorphous and crystalline phases at 670 nm. These new values have been incorporated into our optical constant calculations. Spectra were measured and optical constants were calculated for each nitrile at a variety of temperatures, including, but not limited to, 20, 35, 50, 75, 95, and 110 K, in both the amorphous phase and the crystalline phase. This laboratory effort used a dedicated FTIR spectrometer to record transmission spectra of thin-film ice samples. Laser interference was used to measure film thickness during condensation onto a transparent cold window attached to the tail section of a closed-cycle helium cryostat. Optical constants, real (n) and imaginary (k) refractive indices, were determined using Kramers-Kronig analysis. Our calculation reproduces the complete spectrum, including all interference effects.
C1 [Moore, Marla H.; Moore, W. James] NASA, USRA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Ferrante, Robert F.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Moore, MH (reprint author), NASA, USRA, Goddard Space Flight Ctr, Code 691, Greenbelt, MD 20771 USA.
EM Marla.h.moore@nasa.gov
RI Hudson, Reggie/E-2335-2012
FU NASA; Goddard Center for Astrobiology
FX The authors acknowledge support through NASA's Cassini Data Analysis and
Planetary Atmospheres programs, and The Goddard Center for Astrobiology.
We thank Mark Loeffler for measuring the index of refraction of nitrile
ices at 670 nm. We acknowledge the initial driving force for new
spectroscopy measurements by Raj Khanna (deceased), data sharing by Neil
Dello Russo, and ongoing guidance for Titan relevance from Bob Samuelson
and Carrie Anderson. We also thank an anonymous referee for helpful
comments that led to the improvement of this manuscript.
NR 40
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PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD NOV
PY 2010
VL 191
IS 1
BP 96
EP 112
DI 10.1088/0067-0049/191/1/96
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 688EU
UT WOS:000284833400006
ER
PT J
AU Kessler, DA
Gamezo, VN
Oran, ES
AF Kessler, D. A.
Gamezo, V. N.
Oran, E. S.
TI Simulations of flame acceleration and deflagration-to-detonation
transitions in methane-air systems
SO COMBUSTION AND FLAME
LA English
DT Article
DE Deflagration-to-detonation transition; Methane-air explosions; Flame
acceleration; Obstructed channels
ID BURNING VELOCITY; HOT-SPOTS; NUMERICAL-SIMULATION; REACTION-MECHANISMS;
HYDROCARBON FUELS; CHEMICAL-KINETICS; MIXTURES; DDT; COMBUSTION;
PREDICTION
AB Flame acceleration and deflagration-to-detonation transitions (DDT) in large obstructed channels filled with a stoichiometric methane-air mixture are simulated using a single-step reaction mechanism. The reaction parameters are calibrated using known velocities and length scales of laminar flames and detonations. Calculations of the flame dynamics and DDT in channels with obstacles are compared to previously reported experimental data. The results obtained using the simple reaction model qualitatively, and in many cases, quantitatively match the experiments and are found to be largely insensitive to small variations in model parameters. Published by Elsevier Inc. on behalf of The Combustion Institute.
C1 [Kessler, D. A.; Gamezo, V. N.; Oran, E. S.] USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA.
RP Kessler, DA (reprint author), USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA.
FU National Institute for Occupational Safety and Health (NIOSH); Naval
Research Laboratory (NRL) through the Office of Naval Research
FX This work was supported by the National Institute for Occupational
Safety and Health (NIOSH) and the Naval Research Laboratory (NRL)
through the Office of Naval Research. Computational facilities were
provided by the Laboratory for Computational Physics and Fluid Dynamics
and the DoD High Performance Computing Modernization Project. The
authors thank R. Karl Zipf, Michael Sapko, Khaled Mohamed, Walter
Marchewka, James Addis, Frank Karnack, and Eric Weiss of NIOSH for many
engaging discussions concerning methane-air explosions and Alexei
Poludnenko for several discussions concerning the nature of turbulence
in shock-laden flows. The authors also thank an anonymous reviewer for
several insightful comments during the review process.
NR 50
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PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD NOV
PY 2010
VL 157
IS 11
BP 2063
EP 2077
DI 10.1016/j.combustflame.2010.04.011
PG 15
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 661HR
UT WOS:000282717200006
ER
PT J
AU Pidaparti, RM
Aghazadeh, BS
Whitfield, A
Rao, AS
Mercier, GP
AF Pidaparti, Ramana M.
Aghazadeh, Babak Seyed
Whitfield, Angela
Rao, A. S.
Mercier, Gerald P.
TI Classification of corrosion defects in NiAl bronze through image
analysis
SO CORROSION SCIENCE
LA English
DT Article
DE Nickel; SEM; Modeling Studies; Pitting Corrosion; Acid Corrosion;
Corrosion Fatigue
ID ATMOSPHERIC CORROSION; PITTING CORROSION; INITIATION; EXPOSURE; ALLOYS;
STRESS; DAMAGE
AB Corrosion surface damage in the form of pitting and micro-cracks is observed in many metals. Cracks usually initiate from the pits and grow under cyclic stresses and eventually lead to material failure. An image analysis based on wavelet transforms and fractals was used to study the corrosion morphology of nickel aluminum bronze metal under varying corrosion conditions and applied stresses. Image feature parameters were extracted and analyzed to classify the pits/cracks in the metal samples. The results obtained indicate that classification of pits/cracks is possible with image analysis and may be used for correlating service/failure conditions based on corrosion morphology. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Pidaparti, Ramana M.; Aghazadeh, Babak Seyed] Virginia Commonwealth Univ, Dept Mech Engn, Richmond, VA 23284 USA.
[Whitfield, Angela; Rao, A. S.; Mercier, Gerald P.] Naval Surface Warfare Ctr, Carderock Div, Dept Alloy Dev & Mech, Bethesda, MD 20817 USA.
RP Pidaparti, RM (reprint author), Virginia Commonwealth Univ, Dept Mech Engn, 401 W Main St, Richmond, VA 23284 USA.
EM rmpidaparti@vcu.edu
FU US National Science Foundation [DMR-0505496]; Office of Naval Research,
Virginia
FX The first two authors thank US National Science Foundation for
supporting this work through a Grant DMR-0505496. The authors also
acknowledge the financial support from Dr. Airan Perez, Program Officer,
Office of Naval Research, Virginia.
NR 24
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U1 4
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0010-938X
J9 CORROS SCI
JI Corrosion Sci.
PD NOV
PY 2010
VL 52
IS 11
BP 3661
EP 3666
DI 10.1016/j.corsci.2010.07.017
PG 6
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 659IX
UT WOS:000282561300010
ER
PT J
AU Wankel, SD
Joye, SB
Samarkin, VA
Shah, SR
Friederich, G
Melas-Kyriazi, J
Girguis, PR
AF Wankel, Scott D.
Joye, Samantha B.
Samarkin, Vladimir A.
Shah, Sunita R.
Friederich, Gernot
Melas-Kyriazi, John
Girguis, Peter R.
TI New constraints on methane fluxes and rates of anaerobic methane
oxidation in a Gulf of Mexico brine pool via in situ mass spectrometry
SO DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
LA English
DT Article
DE Methane flux; Mass spectrometer; Brine pool; Methane oxidation; Gulf of
Mexico
ID SEA-FLOOR BRINES; GAS HYDRATE; COLD SEEPS; RIFTIA-PACHYPTILA; SULFATE
REDUCTION; DISSOLVED-GASES; SAANICH INLET; SEDIMENTS; SLOPE;
BIOGEOCHEMISTRY
AB Deep-sea biogeochemical cycles are, in general, poorly understood owing to the difficulties of making measurements in situ, recovering samples with minimal perturbation, and, in many cases, coping with high spatial and temporal heterogeneity. In particular, biogeochemical fluxes of volatiles such as methane remain largely unconstrained because of the difficulties with accurate quantification in situ and the patchiness of point sources such as seeps and brine pools. To better constrain biogeochemical fluxes and cycling, we have developed a deep-sea in situ mass spectrometer (ISMS) to enable high-resolution quantification of volatiles in situ. Here we report direct measurements of methane concentrations made in a Gulf of Mexico brine pool located at a depth of over 2300 m. Concentrations of up to 33 mM methane were observed within the brine pool, whereas concentrations in the water directly above were three orders of magnitude lower. These direct measurements enabled us to make the first accurate estimates of the diffusive flux from a brine pool, calculated to be 1.1 +/- 0.2 mol m(-2) yr(-1). Integrated rate measurements of aerobic methane oxidation in the water column overlying the brine pool were similar to 320 mu mol m(-2) yr(-1), accounting at most for just 0.03% of the diffusive methane flux from the brine pool. Calculated rates of anaerobic methane oxidation were 600-1200 mu M yr(-1), one to two orders of magnitude higher than previously published values of AOM in anoxic fluids. These findings suggest that brine pools are enormous point sources of methane in the deep sea, and may, in aggregate, have a pronounced impact on the global marine methane cycle. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Wankel, Scott D.; Girguis, Peter R.] Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA.
[Joye, Samantha B.; Samarkin, Vladimir A.] Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA.
[Shah, Sunita R.] USN, Res Lab, Washington, DC 20375 USA.
[Friederich, Gernot] Monterey Bay Aquarium Res Inst, Moss Landing, CA USA.
[Melas-Kyriazi, John] Stanford Univ, Stanford, CA 94305 USA.
RP Girguis, PR (reprint author), Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA.
EM pgirguis@oeb.harvard.edu
RI Shah Walter, Sunita/D-4981-2013;
OI Shah Walter, Sunita/0000-0003-2206-9052; Joye,
Samantha/0000-0003-1610-451X
FU U.S. Department of the Interior BOEMRE; National Oceanic and Atmospheric
Administration; David and Lucile Packard Foundation, Harvard University;
National Science Foundation [MCB-0702504]
FX We are especially grateful to Stephane Hourdez for his immense help with
the Membrane Inlet Mass Spectrometry instrument during this expedition.
We are also grateful to Dr. Charles Fisher for his support, as well as
to the captains and crew of the RV Ronald H. Brown and RV Atlantis.
Special thanks to the pilots and support staff of the DSV ALVIN and DSV
JASON II from Woods Hole Oceanographic Institution for help in
collecting and processing samples. Extra thanks go especially to Matthew
Heinz and Tito Collasius for their assistance in the machine shop. This
research was supported by the U.S. Department of the Interior BOEMRE,
the National Oceanic and Atmospheric Administration, the David and
Lucile Packard Foundation, Harvard University, and the National Science
Foundation (MCB-0702504).
NR 52
TC 26
Z9 27
U1 3
U2 34
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0967-0645
J9 DEEP-SEA RES PT II
JI Deep-Sea Res. Part II-Top. Stud. Oceanogr.
PD NOV
PY 2010
VL 57
IS 21-23
BP 2022
EP 2029
DI 10.1016/j.dsr2.2010.05.009
PG 8
WC Oceanography
SC Oceanography
GA 694TZ
UT WOS:000285323200017
ER
PT J
AU Letada, PR
Uebelhoer, NS
Masters, R
Satter, EK
Shumaker, PR
AF Letada, Philip R.
Uebelhoer, Nathan S.
Masters, Reid
Satter, Elizabeth K.
Shumaker, Peter R.
TI Alopecia of the Scalp After Ineffective Treatment of Bowen's Disease
Using Red Light 5-Aminolevulinic Acid Photodynamic Therapy: Two Case
Reports
SO DERMATOLOGIC SURGERY
LA English
DT Article
ID CELL CARCINOMA
AB The authors have indicated no significant interest with commercial supporters.
C1 [Letada, Philip R.] USN, San Diego Med Ctr, Dept Dermatol, San Diego, CA 92134 USA.
RP Letada, PR (reprint author), USN, San Diego Med Ctr, Dept Dermatol, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM Philip.Letada@med.navy.mil
NR 11
TC 1
Z9 3
U1 0
U2 3
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1076-0512
J9 DERMATOL SURG
JI Dermatol. Surg.
PD NOV
PY 2010
VL 36
IS 11
BP 1786
EP 1789
DI 10.1111/j.1524-4725.2010.01750.x
PG 4
WC Dermatology; Surgery
SC Dermatology; Surgery
GA 669BY
UT WOS:000283322600030
PM 20961355
ER
PT J
AU Ochoa, TJ
Rivera, FP
Bernal, M
Meza, R
Ecker, L
Gil, AI
Cepeda, D
Mosquito, S
Mercado, E
Maves, RC
Hall, ER
Svennerholm, AM
McVeigh, A
Savarino, S
Lanata, CF
AF Ochoa, Theresa J.
Rivera, Fulton P.
Bernal, Maria
Meza, Rina
Ecker, Lucie
Gil, Ana I.
Cepeda, David
Mosquito, Susan
Mercado, Erik
Maves, Ryan C.
Hall, Eric R.
Svennerholm, Ann-Mari
McVeigh, Annette
Savarino, Stephen
Lanata, Claudio F.
TI Detection of the CS20 colonization factor antigen in diffuse-adhering
Escherichia coli strains
SO FEMS IMMUNOLOGY AND MEDICAL MICROBIOLOGY
LA English
DT Article
DE colonization factor antigens; enterotoxigenic Escherichia coli;
diarrheagenic Escherichia coli; diffusely adherent Escherichia coli;
diarrhea; children
ID GM1-ENZYME-LINKED IMMUNOSORBENT-ASSAY; MONOCLONAL-ANTIBODIES;
DEVELOPING-COUNTRIES; IDENTIFICATION; ADHESINS; TOXIN; PCR
AB We analyzed a randomly selected group of 30 diffusely adherent (DAEC), 30 enteropathogenic, 30 enteroaggregative, and five Shiga toxin-producing Escherichia coli strains isolated from children with diarrhea. Enterotoxigenic E. coli (ETEC) colonization factors (CFs) were evaluated by a dot-blot assay using 21 CF-specific monoclonal antibodies. Out of 95 non-ETEC strains, three DAEC were found to express coli surface antigen 20 (CS20). No other E. coli expressed CFs. We confirmed the three CS20-positive strains as ETEC-negative by repeat PCR and as toxin-negative by ganglioside-GM1-enzyme-linked immunosorbent assay. To our knowledge, this is the first study that has identified currently recognized CFs in non-ETEC diarrheagenic E. coli strains identified using molecular methods. CFs may be an unrecognized relevant adherence factor in other E. coli, which may then play a role in pathogenesis and the immune response of the host.
C1 [Ochoa, Theresa J.; Rivera, Fulton P.; Mosquito, Susan; Mercado, Erik] Univ Peruana Cayetano Heredia, Inst Med Trop Alexander von Humboldt, Lima 33, Peru.
[Ochoa, Theresa J.] Univ Texas Sch Publ Hlth, Houston, TX USA.
[Bernal, Maria; Meza, Rina; Cepeda, David; Maves, Ryan C.] US Naval Med Res Ctr Detachment, Lima, Peru.
[Ecker, Lucie; Gil, Ana I.; Lanata, Claudio F.] Inst Invest Nutr, Lima, Peru.
[Hall, Eric R.; McVeigh, Annette; Savarino, Stephen] USN, Med Res Ctr, Silver Spring, MD USA.
[Svennerholm, Ann-Mari] Univ Gothenburg, Gothenburg, Sweden.
[Lanata, Claudio F.] Univ Peruana Ciencias Aplicadas, Lima, Peru.
RP Ochoa, TJ (reprint author), Univ Peruana Cayetano Heredia, Inst Med Trop Alexander von Humboldt, Av Honorio Delgado 430, Lima 33, Peru.
EM theresa.j.ochoa@uth.tmc.edu
FU United States Military Infectious Disease Research Program (MIDRP)
[60000.000.0.B0017]; C.F.L.'s Institutional Research Funds;
[1K01TW007405]
FX T.J.O. is supported by 1K01TW007405. This work has been partially funded
by C.F.L.'s Institutional Research Funds and by the United States
Military Infectious Disease Research Program (MIDRP), work unit number
60000.000.0.B0017.
NR 18
TC 4
Z9 4
U1 0
U2 5
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0928-8244
J9 FEMS IMMUNOL MED MIC
JI FEMS Immunol. Med. Microbiol.
PD NOV
PY 2010
VL 60
IS 2
BP 186
EP 189
DI 10.1111/j.1574-695X.2010.00730.x
PG 4
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 662ME
UT WOS:000282810600011
PM 21064230
ER
PT J
AU Dharia, NV
Plouffe, D
Bopp, SER
Gonzalez-Paez, GE
Lucas, C
Salas, C
Soberon, V
Bursulaya, B
Kochel, TJ
Bacon, DJ
Winzeler, EA
AF Dharia, Neekesh V.
Plouffe, David
Bopp, Selina E. R.
Gonzalez-Paez, Gonzalo E.
Lucas, Carmen
Salas, Carola
Soberon, Valeria
Bursulaya, Badry
Kochel, Tadeusz J.
Bacon, David J.
Winzeler, Elizabeth A.
TI Genome scanning of Amazonian Plasmodium falciparum shows subtelomeric
instability and clindamycin-resistant parasites
SO GENOME RESEARCH
LA English
DT Article
ID LIMITED GENETIC DIVERSITY; RAPID DIAGNOSTIC-TEST; 23S RIBOSOMAL-RNA;
CHLOROQUINE RESISTANCE; QUININE RESISTANCE; MALARIA PARASITES;
DRUG-RESISTANCE; IN-VITRO; CHLAMYDOMONAS-REINHARDTII; ANTIMALARIAL-DRUGS
AB Here, we fully characterize the genomes of 14 Plasmodium falciparum patient isolates taken recently from the Iquitos region using genome scanning, a microarray-based technique that delineates the majority of single-base changes, indels, and copy number variants distinguishing the coding regions of two clones. We show that the parasite population in the Peruvian Amazon bears a limited number of genotypes and low recombination frequencies. Despite the essentially clonal nature of some isolates, we see high frequencies of mutations in subtelomeric highly variable genes and internal var genes, indicating mutations arising during self-mating or mitotic replication. The data also reveal that one or two meioses separate different isolates, showing that P. falciparum clones isolated from different individuals in defined geographical regions could be useful in linkage analyses or quantitative trait locus studies. Through pairwise comparisons of different isolates we discovered point mutations in the apicoplast genome that are close to known mutations that confer clindamycin resistance in other species, but which were hitherto unknown in malaria parasites. Subsequent drug sensitivity testing revealed over 100-fold increase of clindamycin EC50 in strains harboring one of these mutations. This evidence of clindamycin-resistant parasites in the Amazon suggests that a shift should be made in health policy away from quinine + clindamycin therapy for malaria in pregnant women and infants, and that the development of new lincosamide antibiotics for malaria should be reconsidered.
[Supplemental material is available online at http://www.genome.org. The microarray data from this study have been submitted to the NCBI Gene Expression Omnibus (http://www.ncbi.nlm.nih.gov/geo) under accession no. GSE22861 and are also at http://www.scripps.edu/cb/winzeler/resources/pf_peru.]
C1 [Dharia, Neekesh V.; Bopp, Selina E. R.; Gonzalez-Paez, Gonzalo E.; Winzeler, Elizabeth A.] Scripps Res Inst, Dept Cell Biol, ICND 202, La Jolla, CA 92037 USA.
[Plouffe, David; Bursulaya, Badry; Winzeler, Elizabeth A.] Novartis Res Fdn, Genom Inst, San Diego, CA 92121 USA.
[Lucas, Carmen; Salas, Carola; Soberon, Valeria; Kochel, Tadeusz J.; Bacon, David J.] USN, Parasitol Program, Med Res Ctr Detachment, APO, AA 34031 USA.
RP Winzeler, EA (reprint author), Scripps Res Inst, Dept Cell Biol, ICND 202, La Jolla, CA 92037 USA.
EM winzeler@scripps.edu
FU WM Keck Foundation; National Institutes of Health [R01AI059472];
Medicines for Malaria Venture; Wellcome Trust
FX We thank C. McNamara and S.J. Westenberger for helpful discussions.
D.J.B. and T.J.K. are military service members, and this work was
prepared as part of their official duties. E.A.W. was supported by
grants from the WM Keck Foundation and the National Institutes of Health
(R01AI059472). Malaria work at GNF is partially supported by grants from
the Medicines for Malaria Venture and the Wellcome Trust. The views
expressed in this article are those of the authors and do not
necessarily reflect the official policy of the Department of the Navy,
the Department of Defense, the Department of Health and Human Services,
or the U.S. government. The study protocol was approved by the Naval
Medical Research Center Institutional Review Board in compliance with
all applicable Federal regulations governing the protection of human
subjects.
NR 83
TC 32
Z9 32
U1 0
U2 2
PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
PI COLD SPRING HARBOR
PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA
SN 1088-9051
J9 GENOME RES
JI Genome Res.
PD NOV
PY 2010
VL 20
IS 11
BP 1534
EP 1544
DI 10.1101/gr.105163.110
PG 11
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
GA 673JF
UT WOS:000283654800007
PM 20829224
ER
PT J
AU Chapelle, FH
Singletary, MA
AF Chapelle, Francis H.
Singletary, Michael A.
TI Combining Source-Area Treatment with MNA: A Tale of Two Sites
SO GROUND WATER
LA English
DT Editorial Material
C1 [Chapelle, Francis H.] US Geol Survey, Columbia, SC 29210 USA.
[Singletary, Michael A.] USN, Facil Engn Command SE, Jacksonville, FL 32212 USA.
RP Chapelle, FH (reprint author), US Geol Survey, 720 Gracern Rd,Suite 129, Columbia, SC 29210 USA.
EM chapelle@usgs.gov
NR 4
TC 0
Z9 0
U1 0
U2 2
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD NOV-DEC
PY 2010
VL 48
IS 6
BP 803
EP 805
PG 3
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 675KB
UT WOS:000283828300009
PM 21416660
ER
PT J
AU Chesley, SR
Baer, J
Monet, DG
AF Chesley, Steven R.
Baer, James
Monet, David G.
TI Treatment of star catalog biases in asteroid astrometric observations
SO ICARUS
LA English
DT Article
DE Asteroids; Comets
ID PHOTOMETRIC DATA; 99942 APOPHIS; UCAC2; 2MASS; SHAPE
AB In this paper, we discuss the detection of systematic biases in star positions of the USNO A1.0, A2.0, and B1.0 catalogs, as deduced from the residuals of numbered asteroid observations. We present a technique for the removal of these biases, and validate this technique by illustrating the resulting improvements in numbered asteroid residuals, and by establishing that debiased orbits predict omitted observations more accurately than do orbits derived from non-debiased observations. We also illustrate the benefits of debiasing to high-precision astrometric applications such as asteroid mass determination and collision analysis, including a refined prediction of the impact probability of 99942 Apophis. Specifically, we find the IP of Apophis to be lowered by nearly an order of magnitude to 4.5 x 10(-6) for the 2036 close approach. (C) 2010 Elsevier Inc. All rights reserved.
C1 [Baer, James] James Cook Univ, Sch Engn & Phys Sci, Townsville, Qld 4811, Australia.
[Chesley, Steven R.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Monet, David G.] USN Observ, Flagstaff, AZ 86001 USA.
RP Baer, J (reprint author), James Cook Univ, Sch Engn & Phys Sci, Townsville, Qld 4811, Australia.
EM steve.chesley@jpl.nasa.gov; jimbaer1@earthlink.net
FU National Aeronautics and Space Administration; National Science
Foundation
FX We are grateful to Tim Spahr and Gareth Williams of the Minor Planet
Center at Harvard Univ., who provided the astrometric catalog
information, which was vital for this effort to proceed. Numerous
observers and observing programs provided valuable information beyond
what is available from the MPC data files. In particular, we thank Bob
McMillan (Spacewatch), Ed Beshore (Catalina Sky Survey), Scott Stuart
(LINEAR), Bruce Koehn (LONEOS) and Ken Lawrence (NEAT) for their
cooperation. Finally, we are sincerely grateful to Andrea Milani, for
his expertise and help at each step of this effort. This publication
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/California Institute of Technology,
funded by the National Aeronautics and Space Administration and the
National Science Foundation. Some of the results in this paper have been
derived using the HEALPix package (Gorski et al., 2005). This research
was conducted in part at the Jet Propulsion Laboratory, California
Institute of Technology, under a contract with the National Aeronautics
and Space Administration.
NR 33
TC 47
Z9 47
U1 0
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0019-1035
EI 1090-2643
J9 ICARUS
JI Icarus
PD NOV
PY 2010
VL 210
IS 1
BP 158
EP 181
DI 10.1016/j.icarus.2010.06.003
PG 24
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 665LH
UT WOS:000283036100014
ER
PT J
AU Kushto, GP
Makinen, AJ
Lane, PA
AF Kushto, Gary P.
Maekinen, Antti J.
Lane, Paul A.
TI Organic Photovoltaic Cells Using Group 10 Metallophthalocyanine Electron
Donors
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE Fullerenes; organic compounds; photovoltaic devices; transition metal
compounds
ID SOLAR-CELLS; PHTHALOCYANINES; INTERFACES; NI
AB Organic planar heterojunction solar cells using C(60) as an electron acceptor and group 10 metal phthalocyanines ( nickel, palladium, and platinum) as electron donors have been fabricated and evaluated for their device characteristics. Upon changing the metal center, these devices exhibit interesting trends, such as variations in the open-circuit voltage, short-circuit current density, and power-conversion efficiency. Devices based on palladium phthalocyanine (PdPc) exhibited the best performance, achieving power-conversion efficiencies of 2.4% under AM1.5G (76mW/cm(2)) illumination. This is due to the higher ionization potential of PdPc and greater efficiency of charge photogeneration. Nickel phthalocyanine (NiPc) has the highest hole mobility, but cells using NiPc have the weakest charge-generation efficiency. This is due to poor exciton diffusion to the organic heterojunction that can be overcome by using a composite NiPc:C(60) charge-generation layer. An optimized NiPc-based cell has a power-conversion efficiency of 1.9%.
C1 [Kushto, Gary P.; Maekinen, Antti J.; Lane, Paul A.] USN, Res Lab, Washington, DC 20375 USA.
RP Kushto, GP (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM gary.kushto@nrl.navy.mil; antti.makinen@nrl.navy.mil;
paul.lane@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 22
TC 4
Z9 5
U1 1
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1077-260X
J9 IEEE J SEL TOP QUANT
JI IEEE J. Sel. Top. Quantum Electron.
PD NOV-DEC
PY 2010
VL 16
IS 6
BP 1552
EP 1559
DI 10.1109/JSTQE.2010.2052354
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 736IY
UT WOS:000288488400006
ER
PT J
AU Lewis, TG
Pickl, S
Peek, B
Xu, GL
AF Lewis, Ted G.
Pickl, Stefan
Peek, Ben
Xu, Guoliang
TI Network Science
SO IEEE NETWORK
LA English
DT Editorial Material
C1 [Lewis, Ted G.] Oregon State Univ, Corvallis, OR 97331 USA.
[Pickl, Stefan] UBw Munchen, Acad Highly Gifted Pupils, Munich, Germany.
[Pickl, Stefan] Univ Cologne, D-5000 Cologne 41, Germany.
[Pickl, Stefan] Univ Nevada, CASA, Las Vegas, NV 89154 USA.
[Pickl, Stefan] NPS Monterey, Ctr Network Innovat & Expt, CENETIX, Monterey, CA USA.
[Pickl, Stefan] Stanford Univ, Res Program Intelligent Networks & Secur Struct, Stanford, CA 94305 USA.
[Pickl, Stefan] Stanford Univ, Res Program Crit Infrastruct & Syst Anal CRISYS, Stanford, CA 94305 USA.
[Xu, Guoliang] Arizona State Univ, Sch Comp Informat & Decis Syst Engn, Tempe, AZ 85287 USA.
[Xu, Guoliang] Univ Vermont, Burlington, VT 05405 USA.
RP Lewis, TG (reprint author), USN, Postgrad Sch, Ctr Homeland Def & Secur, Monterey, CA USA.
EM tlewis@nps.edu; stefan.pickl@unibw.de; ben@peek.com; xue@asu.edu
NR 1
TC 1
Z9 1
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0890-8044
J9 IEEE NETWORK
JI IEEE Netw.
PD NOV-DEC
PY 2010
VL 24
IS 6
BP 4
EP 5
DI 10.1109/MNET.2010.5634435
PG 2
WC Computer Science, Hardware & Architecture; Computer Science, Information
Systems; Engineering, Electrical & Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA 680IT
UT WOS:000284226300002
ER
PT J
AU Clark, PC
Cook, GR
Fisher, EL
Fulp, JD
Linhoff, V
Irvine, CE
AF Clark, Paul C.
Cook, Glenn R.
Fisher, Edward L.
Fulp, John D.
Linhoff, Valerie
Irvine, Cynthia E.
TI New Pathways in Identity Management
SO IEEE SECURITY & PRIVACY
LA English
DT Article
C1 [Clark, Paul C.; Fulp, John D.; Linhoff, Valerie; Irvine, Cynthia E.] USN, Postgrad Sch, Dept Comp Sci, Stennis Space Ctr, MS 39529 USA.
[Cook, Glenn R.; Fisher, Edward L.] USN, Postgrad Sch, Dept Informat Sci, Stennis Space Ctr, MS 39529 USA.
RP Clark, PC (reprint author), USN, Postgrad Sch, Dept Comp Sci, Stennis Space Ctr, MS 39529 USA.
EM pcclark@nps.edu; grcook@nps.edu; elfisher@nps.edu; jdfulp@nps.edu;
vllinhof@nps.edu; irvine@nps.edu
NR 7
TC 0
Z9 0
U1 0
U2 0
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1540-7993
J9 IEEE SECUR PRIV
JI IEEE Secur. Priv.
PD NOV-DEC
PY 2010
VL 8
IS 6
BP 64
EP 67
DI 10.1109/MSP.2010.183
PG 4
WC Computer Science, Information Systems; Computer Science, Software
Engineering
SC Computer Science
GA 691AM
UT WOS:000285052700011
ER
PT J
AU Kindt, RW
Pickles, WR
AF Kindt, Rick W.
Pickles, William R.
TI Ultrawideband All-Metal Flared-Notch Array Radiator
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE Domain decomposition; finite element method; phased array; tapered-slot;
thick flared-notch element; ultrawideband arrays; Vivaldi array
ID PHASED-ARRAYS; ANTENNA; DESIGN; ELEMENTS
AB Simulations and measurements are presented for an all-metal flared-notch array element in both single and dual-polarization configurations. The ultrawideband radiator exhibits an operational bandwidth of 12:1 for broadside scan and 8:1 bandwidth at a 45-degree scan in all planes, maintaining active VSWR<2. The feed consists of a direct coax-to-slot-line transition that mounts directly into the base of the radiator. The all-metal flared-notches are machined from common metal stock and fed via SMA coaxial connectors. No soldering is required for any part of the design-including the feed-and assembly is simple and modular. The array parts are machined using a high-precision wire-EDM cutting technology, ensuring that measurements (in the 700 MHz-9 GHz range) are repeatable and give close agreement with theory, even through multiple assembly cycles of the modular construction system. This paper presents results for a 32-element linear array of horizontal elements and also an 8 x 8 planar array of dual-polarized elements, comparing measurements with full-wave simulations of the complete finite array structures.
C1 [Kindt, Rick W.; Pickles, William R.] USN, Res Lab, Washington, DC 20375 USA.
RP Kindt, RW (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM rick.kindt@nrl.navy.mil
FU U.S. Office of Naval Research
FX This work was supported by the U.S. Office of Naval Research in
2008-2009.
NR 29
TC 22
Z9 22
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-926X
EI 1558-2221
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD NOV
PY 2010
VL 58
IS 11
BP 3568
EP 3575
DI 10.1109/TAP.2010.2071360
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 676SY
UT WOS:000283940100016
ER
PT J
AU Gliese, U
Colladay, K
Hastings, AS
Tulchinsky, DA
Urick, VJ
Williams, KJ
AF Gliese, Ulrik
Colladay, Kristina
Hastings, Alexander S.
Tulchinsky, David A.
Urick, Vincent J.
Williams, Keith J.
TI RF Power Conversion Efficiency of Photodiodes Driven by Mach-Zehnder
Modulators
SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
LA English
DT Article
DE Analog photonics; microwave photonics; optoelectronics; photodiodes;
power conversion efficiency (PCE)
ID HIGH-CURRENT PHOTODETECTORS; SATURATION; PERFORMANCE; COMPRESSION;
DESIGN; LINKS
AB A comprehensive analysis supported by experimental results is provided for RF and microwave power conversion efficiency (PCE) of photodiodes driven by optical signals with either shaped or pure sinusoidal intensity-envelopes where the shaping is performed with a Mach-Zehnder modulator (MZM). It is shown that optical envelope-shaping provides a significantly improved maximum theoretical PCE of 67% as compared to 50% for sinusoidal intensity-envelopes. Practical PCEs of 40.5%-53.5% have been achieved as compared to previously published efficiencies in the 32%-41% range. The results demonstrate that high-current photodiodes can be used as efficient wideband high-power output stages in microwave photonic distribution systems leading to less complex and more efficient antenna array backplanes.
C1 [Gliese, Ulrik; Colladay, Kristina] NRL, Global Strategies Grp, Crofton, MD 21114 USA.
[Hastings, Alexander S.; Tulchinsky, David A.; Urick, Vincent J.; Williams, Keith J.] USN, Res Lab, Washington, DC 20375 USA.
RP Gliese, U (reprint author), NASA, Goddard Space Flight Ctr, SGT, Greenbelt, MD 20771 USA.
EM ulrik.gliese@nasa.gov; kristina.colladay@nrl.navy.mil;
hastings@ccs.nrl.navy.mil; david.tulchinsky@nrl.navy.mil;
vin-cent.urick@nrl.navy.mil; keith.williams@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 19
TC 5
Z9 5
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9480
J9 IEEE T MICROW THEORY
JI IEEE Trans. Microw. Theory Tech.
PD NOV
PY 2010
VL 58
IS 11
SI SI
BP 3359
EP 3371
DI 10.1109/TMTT.2010.2075530
PN 2
PG 13
WC Engineering, Electrical & Electronic
SC Engineering
GA 680GE
UT WOS:000284219600042
ER
PT J
AU Mahajan, B
Berzofsky, JA
Boykins, RA
Majam, V
Zheng, H
Chattopadhyay, R
de la Vega, P
Moch, JK
Haynes, JD
Belyakov, IM
Nakhasi, HL
Kumar, S
AF Mahajan, Babita
Berzofsky, Jay A.
Boykins, Robert A.
Majam, Victoria
Zheng, Hong
Chattopadhyay, Rana
de la Vega, Patricia
Moch, J. Kathleen
Haynes, J. David
Belyakov, Igor M.
Nakhasi, Hira L.
Kumar, Sanjai
TI Multiple Antigen Peptide Vaccines against Plasmodium falciparum Malaria
SO INFECTION AND IMMUNITY
LA English
DT Article
ID B-CELL EPITOPES; RED-BLOOD-CELLS; CIRCUMSPOROZOITE PROTEIN; T-CELL;
SYNTHETIC PEPTIDES; SPOROZOITE VACCINE; IMMUNE-RESPONSE;
SURFACE-ANTIGEN; ANTIBODIES; IMMUNOGENICITY
AB The multiple antigen peptide (MAP) approach is an effective method to chemically synthesize and deliver multiple T-cell and B-cell epitopes as the constituents of a single immunogen. Here we report on the design, chemical synthesis, and immunogenicity of three Plasmodium falciparum MAP vaccines that incorporated antigenic epitopes from the sporozoite, liver, and blood stages of the life cycle. Antibody and cellular responses were determined in three inbred (C57BL/6, BALB/c, and A/J) strains, one congenic (HLA-A2 on the C57BL/6 background) strain, and one outbred strain (CD1) of mice. All three MAPs were immunogenic and induced both antibody and cellular responses, albeit in a somewhat genetically restricted manner. Antibodies against MAP-1, MAP-2, and MAP-3 had an antiparasite effect that was also dependent on the mouse major histocompatibility complex background. Anti-MAP-1 (CSP-based) antibodies blocked the invasion of HepG2 liver cells by P. falciparum sporozoites (highest, 95.16% in HLA-A2 C57BL/6; lowest, 11.21% in BALB/c). Furthermore, antibodies generated following immunizations with the MAP-2 (PfCSP, PfLSA-1, PfMSP-1(42), and PfMSP-3b) and MAP-3 (PfRAP-1, PfRAP-2, PfSERA, and PfMSP-1(42)) vaccines were able to reduce the growth of blood stage parasites in erythrocyte cultures to various degrees. Thus, MAP-based vaccines remain a viable option to induce effective antibody and cellular responses. These results warrant further development and preclinical and clinical testing of the next generation of candidate MAP vaccines that are based on the conserved protective epitopes from Plasmodium antigens that are widely recognized by populations of divergent HLA types from around the world.
C1 [Kumar, Sanjai] US FDA, Malaria Res Program, Div Emerging & Transfus Transmitted Dis, Ctr Biol Evaluat & Res, Rockville, MD 20852 USA.
[Berzofsky, Jay A.; Belyakov, Igor M.] NCI, Vaccine Branch, Ctr Canc Res, NIH, Bethesda, MD 20892 USA.
[de la Vega, Patricia; Moch, J. Kathleen; Haynes, J. David] USN, Med Res Ctr, Silver Spring, MD USA.
[de la Vega, Patricia; Moch, J. Kathleen; Haynes, J. David] Walter Reed Army Inst Res, Silver Spring, MD USA.
RP Kumar, S (reprint author), US FDA, Malaria Res Program, Div Emerging & Transfus Transmitted Dis, Ctr Biol Evaluat & Res, Rockville, MD 20852 USA.
EM Sanjai.kumar@fda.hhs.gov
NR 63
TC 24
Z9 29
U1 0
U2 2
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0019-9567
J9 INFECT IMMUN
JI Infect. Immun.
PD NOV
PY 2010
VL 78
IS 11
BP 4613
EP 4624
DI 10.1128/IAI.00533-10
PG 12
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 665RB
UT WOS:000283052100018
PM 20823210
ER
PT J
AU Hamrick, TA
Fricker, RD
Brown, GG
AF Hamrick, Thomas A.
Fricker, Ronald D., Jr.
Brown, Gerald G.
TI Assessing What Distinguishes Highly Cited from Less-Cited Papers
Published in Interfaces
SO INTERFACES
LA English
DT Article
DE citation; bibliometrics; impact; impact factor
ID CITING BEHAVIOR; OLD PAPERS; CITATION; REASONS; CONTINUE; INDEX
AB We evaluate what distinguishes a highly cited Interfaces paper from other Interfaces papers that are cited less often. Citations are used to acknowledge prior relevant research, to document sources of information, and to substantiate claims. As such, citations play a key role in the evolution of knowledge. More recently, citations are also being used to quantify the impact of papers and journals, a practice not without controversy, but one that motivates our work here. We find that Edelman competition papers, longer papers, tutorials, papers with larger numbers of references to prior literature, and papers with a larger number of "callouts" (a feature no longer used by Interfaces) tend to have a higher number of citations.
C1 [Hamrick, Thomas A.; Fricker, Ronald D., Jr.; Brown, Gerald G.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Hamrick, TA (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
EM tahamric@nps.edu; rdfricker@nps.edu; gbrown@nps.edu
NR 29
TC 4
Z9 4
U1 5
U2 16
PU INFORMS
PI HANOVER
PA 7240 PARKWAY DR, STE 310, HANOVER, MD 21076-1344 USA
SN 0092-2102
J9 INTERFACES
JI Interfaces
PD NOV-DEC
PY 2010
VL 40
IS 6
BP 454
EP 464
DI 10.1287/inte.1100.0527
PG 11
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA 690II
UT WOS:000284996100007
ER
PT J
AU Earhart, K
Carter, B
AF Earhart, Ken
Carter, Brian
TI Addressing global health security in Eastern Mediterranean countries by
increasing regional cooperation on zoonotic diseases
SO INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
LA English
DT Editorial Material
C1 [Earhart, Ken] USN, Med Res Unit 3, Med Corps, Cairo, Egypt.
[Carter, Brian] US Dept State, Middle E&N Africa Biosecur Engagement Program, Bur Int Secur & Nonproliferat, Off Cooperat Threat Reduct, Washington, DC 20520 USA.
RP Earhart, K (reprint author), USN, Med Res Unit 3, Med Corps, Cairo, Egypt.
EM kenneth.earhart@med.navy.mil
RI Valle, Ruben/A-7512-2013
NR 0
TC 0
Z9 0
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0924-8579
J9 INT J ANTIMICROB AG
JI Int. J. Antimicrob. Agents
PD NOV
PY 2010
VL 36
SU 1
BP S3
EP S4
DI 10.1016/j.ijantimicag.2010.06.011
PG 2
WC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
SC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
GA 665PC
UT WOS:000283046900003
PM 20850278
ER
PT J
AU Zaki, AN
AF Zaki, Adel N.
TI Biosafety and biosecurity measures: management of biosafety level 3
facilities
SO INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
LA English
DT Article
DE Biosafety; Biosecurity
AB With the increasing biological threat from emerging infectious diseases and bioterrorism, it has become essential for governments around the globe to increase awareness and preparedness for identifying and containing those agents. This article introduces the basic concepts of laboratory management, laboratory biosafety and laboratory biosecurity. Assessment criteria for laboratories' biorisk should include both biosafety and biosecurity measures. The assessment requires setting specific goals and selecting management approaches. In order to implement technologies at the laboratory working level, a management team should be created whose role is to implement biorisk policies, rules and regulations appropriate for that facility. Rules and regulations required by government authorities are presented, with special emphasis on methods for air control, and liquid and solid waste management. Management and biorisk measures and appropriate physical facilities must keep pace, ensuring efficient facilities that protect workers, the environment, the product (research, diagnostic and/or vaccine) and the biological pathogen. Published by Elsevier B.V. on behalf of International Society of Chemotherapy.
C1 USN, Med Res Unit 3, FPO, AE 09835 USA.
RP Zaki, AN (reprint author), USN, Med Res Unit 3, PSC 452,Box 5000, FPO, AE 09835 USA.
EM adel.zaki.ctr.eg@med.navy.mil
RI Valle, Ruben/A-7512-2013
NR 9
TC 4
Z9 5
U1 1
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0924-8579
J9 INT J ANTIMICROB AG
JI Int. J. Antimicrob. Agents
PD NOV
PY 2010
VL 36
SU 1
BP S70
EP S74
DI 10.1016/j.ijantimicag.2010.06.026
PG 5
WC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
SC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
GA 665PC
UT WOS:000283046900018
PM 20801002
ER
PT J
AU Chu, PC
Fan, CW
AF Chu, Peter C.
Fan, Chenwu
TI Optimal Linear Fitting for Objective Determination of Ocean Mixed Layer
Depth from Glider Profiles
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID PACIFIC-OCEAN; BARRIER LAYER; MODEL; VARIABILITY
AB A new optimal linear fitting method has been developed to determine mixed layer depth from profile data. This methodology includes three steps: 1) fitting the profile data from the first point near the surface to a depth using a linear polynomial, 2) computing the error ratio of absolute bias of few data points below that depth versus the root-mean-square error of data points from the surface to that depth between observed and fitted data, and 3) finding the depth (i.e., the mixed layer depth) with maximum error ratio. Temperature profiles in the western North Atlantic Ocean over 14 November-5 December 2007, collected from two gliders (Seagliders) deployed by the Naval Oceanographic Office, are used to demonstrate the capability of this method. The mean quality index (1.0 for perfect determination) for determining mixed layer depth is greater than 0.97, which is much higher than the critical value of 0.8 for well-defined mixed layer depth with that index.
C1 [Chu, Peter C.; Fan, Chenwu] USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Chu, PC (reprint author), USN, Postgrad Sch, Dept Oceanog, 833 Dyer Rd, Monterey, CA 93943 USA.
EM pcchu@nps.edu
FU Office of Naval Research; Naval Oceanographic Office; Naval Postgraduate
School
FX The Office of Naval Research, the Naval Oceanographic Office, and the
Naval Postgraduate School supported this study. The authors thank the
Naval Oceanographic Office for providing hydrographic data from two
gliders.
NR 14
TC 6
Z9 8
U1 0
U2 4
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0739-0572
J9 J ATMOS OCEAN TECH
JI J. Atmos. Ocean. Technol.
PD NOV
PY 2010
VL 27
IS 11
BP 1893
EP 1898
DI 10.1175/2010JTECHO804.1
PG 6
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 680PX
UT WOS:000284248000008
ER
PT J
AU Antevil, JL
Carroll, CG
Roberts, PF
Johnston, MG
Strange, RG
AF Antevil, Jared L.
Carroll, Craig G.
Roberts, Peter F.
Johnston, Michael G.
Strange, Robert G.
TI Myasthenia Gravis-An Unexpected Cause of Respiratory Failure and
Reversible Left Ventricular Dysfunction after Cardiac Surgery
SO JOURNAL OF CARDIAC SURGERY
LA English
DT Editorial Material
ID CRISIS; HEART
AB P>We report a case of postpericardiotomy myasthenia gravis. A 68-year-old male patient without prior history of neuromuscular or autoimmune disorders presented with respiratory failure and severe left ventricular dysfunction four weeks after mitral valve replacement. Markedly elevated acetylcholine receptor antibodies were noted, and the patient responded promptly to immunologic therapy. Awareness of this rare but potentially fatal consequence of cardiac surgery may allow the early institution of specific treatment. (J Card Surg 2010;25:662-664).
C1 [Antevil, Jared L.; Roberts, Peter F.; Strange, Robert G.] USN, Dept Cardiothorac Surg, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
[Carroll, Craig G.] USN, Dept Neurol, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
[Johnston, Michael G.] USN, Dept Gen Surg, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Antevil, JL (reprint author), USN, Dept Cardiothorac Surg, Med Ctr Portsmouth, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM jared.antevil@med.navy.mil
NR 8
TC 2
Z9 2
U1 0
U2 0
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0886-0440
J9 J CARDIAC SURG
JI J. Card. Surg.
PD NOV
PY 2010
VL 25
IS 6
BP 662
EP 664
DI 10.1111/j.1540-8191.2010.01093.x
PG 3
WC Cardiac & Cardiovascular Systems; Surgery
SC Cardiovascular System & Cardiology; Surgery
GA 678YY
UT WOS:000284121100010
PM 20796093
ER
PT J
AU Kelly, KA
Small, RJ
Samelson, RM
Qiu, B
Joyce, TM
Kwon, YO
Cronin, MF
AF Kelly, Kathryn A.
Small, R. Justin
Samelson, R. M.
Qiu, Bo
Joyce, Terrence M.
Kwon, Young-Oh
Cronin, Meghan F.
TI Western Boundary Currents and Frontal Air-Sea Interaction: Gulf Stream
and Kuroshio Extension
SO JOURNAL OF CLIMATE
LA English
DT Article
ID SUBTROPICAL MODE WATER; OCEAN-ATMOSPHERE INTERACTION; NORTHERN
RECIRCULATION GYRE; SURFACE TEMPERATURE; STORM-TRACKS; INTERANNUAL
VARIABILITY; DECADAL VARIABILITY; HEAT-TRANSPORT;
SATELLITE-OBSERVATIONS; STRATIFORM CLOUDINESS
AB In the Northern Hemisphere midlatitude western boundary current (WBC) systems there is a complex interaction between dynamics and thermodynamics and between atmosphere and ocean. Their potential contribution to the climate system motivated major parallel field programs in both the North Pacific [Kuroshio Extension System Study (KESS)] and the North Atlantic [ Climate Variability and Predictability (CLIVAR) Mode Water Dynamics Experiment (CLIMODE)], and preliminary observations and analyses from these programs highlight that complexity. The Gulf Stream (GS) in the North Atlantic and the Kuroshio Extension (KE) in the North Pacific have broad similarities, as subtropical gyre WBCs, but they also have significant differences, which affect the regional air-sea exchange processes and their larger-scale interactions. The 15-yr satellite altimeter data record, which provides a rich source of information, is combined here with the longer historical record from in situ data to describe and compare the current systems. While many important similarities have been noted on the dynamic and thermodynamic aspects of the time-varyingGS and KE, some not-so-subtle differences exist in current variability, mode water properties, and recirculation gyre structure. This paper provides a comprehensive comparison of these two current systems from both dynamical and thermodynamical perspectives with the goal of developing and evaluating hypotheses about the physics underlying the observed differences, and exploring the WBC's potential to influence midlatitude sea-air interaction. Differences between the GS and KE systems offer opportunities to compare the dominant processes and thereby to advance understanding of their role in the climate system.
C1 [Kelly, Kathryn A.] Univ Washington, Appl Phys Lab, Seattle, WA 98195 USA.
[Small, R. Justin] USN, Jacobs Technol, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Samelson, R. M.] Oregon State Univ, COAS, Corvallis, OR 97331 USA.
[Qiu, Bo] Univ Hawaii Manoa, Honolulu, HI 96822 USA.
[Joyce, Terrence M.; Kwon, Young-Oh] WHOI, Woods Hole, MA USA.
[Cronin, Meghan F.] NOAA, PMEL, Seattle, WA USA.
RP Kelly, KA (reprint author), Univ Washington, Appl Phys Lab, POB 355640, Seattle, WA 98195 USA.
EM kkelly@apl.washington.edu
RI Kwon, Young-Oh/C-2190-2008; Qiu, Bo/D-9569-2017
OI Kwon, Young-Oh/0000-0002-1241-2817;
FU NASA [1267196, NNX08AR30G, 1207881]; NSF [OCE-0424912, OCE-0424516,
OCE-0220680, OCE-0424865]; WHOI Ocean Climate Change Institute
FX KAK was supported by NASA Contracts 1267196 and NNX08AR30G and by NSF
Grant OCE-0424912 (CLIMODE). RMS was supported by NSF Grant OCE-0424516.
BQ was supported by NSF Grant OCE-0220680 and by NASA Contract 1207881.
TJ was supported by NSF Grant OCE-0424865. Y-OK was supported by the
Claudia Heyman Fellowship of the WHOI Ocean Climate Change Institute.
NR 100
TC 80
Z9 83
U1 2
U2 20
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD NOV
PY 2010
VL 23
IS 21
BP 5644
EP 5667
DI 10.1175/2010JCLI3346.1
PG 24
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 683HG
UT WOS:000284463700006
ER
PT J
AU Metzgar, D
Baynes, D
Myers, CA
Kammerer, P
Unabia, M
Faix, DJ
Blair, PJ
AF Metzgar, David
Baynes, Darcie
Myers, Christopher A.
Kammerer, Peter
Unabia, Michelle
Faix, Dennis J.
Blair, Patrick J.
TI Initial Identification and Characterization of an Emerging Zoonotic
Influenza Virus Prior to Pandemic Spread
SO JOURNAL OF CLINICAL MICROBIOLOGY
LA English
DT Article
ID IONIZATION MASS-SPECTROMETRY; A H1N1 VIRUS; RAPID IDENTIFICATION;
UNIVERSAL BIOSENSOR; VACCINE STRAINS; HUMANS; PCR; SURVEILLANCE;
SENSITIVITY
AB Two cases of febrile respiratory illness associated with untypeable influenza A virus were identified in Southern California in March 2009. One was initially detected as influenza virus using an experimental diagnostic device in a clinical trial, while the other was detected at a local reference lab using a diagnostic PCR assay. In both cases, analyses yielded negative results for strain-specific tests targeting circulating strains of influenza A virus (seasonal H1 and H3). These two samples became the first reported cases of the pandemic 2009/H1N1 influenza virus. The first reportable characterization was made from the second collected specimen on 15 April 2009 at the Centers for Disease Control and Prevention central lab using traditional culture and sequencing methods. The novel nature of the strain and its apparent zoonotic origins were initially characterized using the first collected specimen at the Naval Health Research Center in San Diego, CA, on 13 April using an experimental molecular analysis tool, PCR electro-spray ionization-mass spectrometry (PCR/ESI-MS), designed to amplify PCR products from any strain of influenza virus and to generate informative (phylogenetic) strain identifications through mass spectrometry of PCR amplicons. The ability of this high-throughput tool to correctly identify both well-characterized and novel influenza strains offers the possibility to integrate surveillance for emerging strains with on-site rapid diagnosis used for patient management, shortening the times between the emergence of new strains, their detection and identification, and appropriate public health response activities. Here we describe the initial characterization of the pandemic 2009/H1N1 influenza strain and discuss the possible roles of diagnostic tools with discovery potential.
C1 [Metzgar, David; Baynes, Darcie; Myers, Christopher A.; Kammerer, Peter; Unabia, Michelle; Faix, Dennis J.; Blair, Patrick J.] Naval Hlth Res Ctr, Dept Resp Dis Res, San Diego, CA USA.
RP Metzgar, D (reprint author), Ibis Biosci, 2251 Faraday Ave,Suite 150, Carlsbad, CA 92008 USA.
EM dmetzgar@ibisbio.com
RI Valle, Ruben/A-7512-2013
FU Department of Defense (DoD) Global Emerging Infections Surveillance and
Response System (GEIS), a Division of the Armed Forces Health
Surveillance Center [60501]; Defense Advanced Research Projects Agency
(DARPA)
FX This work represents NHRC report number 10-22 supported by the
Department of Defense (DoD) Global Emerging Infections Surveillance and
Response System (GEIS), a Division of the Armed Forces Health
Surveillance Center, under research work unit no. 60501. The T5000
Universal Biosensor was developed and provided to NHRC with support from
the Defense Advanced Research Projects Agency (DARPA).
NR 18
TC 28
Z9 28
U1 0
U2 7
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0095-1137
J9 J CLIN MICROBIOL
JI J. Clin. Microbiol.
PD NOV
PY 2010
VL 48
IS 11
BP 4228
EP 4234
DI 10.1128/JCM.01336-10
PG 7
WC Microbiology
SC Microbiology
GA 672MK
UT WOS:000283588500057
PM 20861338
ER
PT J
AU Radice, JJ
Vinson, JR
AF Radice, J. J.
Vinson, J. R.
TI On the Design of Three-layer Symmetric and Three-layer Asymmetric
Adherends in Lap Shear Joints
SO JOURNAL OF COMPOSITE MATERIALS
LA English
DT Article
DE joining of advanced composites; structural analysis optimization
ID ADHESIVE-BONDED JOINTS
AB Design studies are performed for composite material adherends in an axially loaded single lap shear joint with a three-layer adherend architecture. An optimal three-layer symmetric design and an improved three-layer asymmetric design are found. For the specific composite and adhesive material systems chosen, peel stresses are reduced by approximately 7% by using this improved three-layer asymmetric architecture. The maximum principal stress is reduced by approximately 4% for this optimized architecture.
C1 [Radice, J. J.] USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Vinson, J. R.] Univ Delaware, Dept Mech Engn, Spencer Lab, Newark, DE 19717 USA.
RP Radice, JJ (reprint author), USN Acad, Dept Mech Engn, 590 Holloway Rd, Annapolis, MD 21402 USA.
EM radice@usna.edu
NR 12
TC 0
Z9 0
U1 1
U2 1
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0021-9983
J9 J COMPOS MATER
JI J. Compos Mater.
PD NOV
PY 2010
VL 44
IS 23
BP 2625
EP 2642
DI 10.1177/0021998310365174
PG 18
WC Materials Science, Composites
SC Materials Science
GA 670LO
UT WOS:000283423400001
ER
PT J
AU Tadjer, MJ
Anderson, TJ
Hobart, KD
Mastro, MA
Hite, JK
Caldwell, JD
Picard, YN
Kub, FJ
Eddy, CR
AF Tadjer, Marko J.
Anderson, Travis J.
Hobart, Karl D.
Mastro, Michael A.
Hite, Jennifer K.
Caldwell, Joshua D.
Picard, Yoosuf N.
Kub, Fritz J.
Eddy, Charles R., Jr.
TI Electrical and Optical Characterization of AlGaN/GaN HEMTs with In Situ
and Ex Situ Deposited SiNx Layers
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article; Proceedings Paper
CT Symposium on Phase Stability, Phase Transformation and Reactive Phase
Formation in Electronic Materials VII
CY FEB 14-18, 2010
CL Seattle, WA
DE AlGaN/GaN HEMT; power switching; in situ passivation; surface state
density; photoluminescence; electroluminescence; Raman thermography
ID FIELD-EFFECT TRANSISTORS; BREAKDOWN VOLTAGE; MOBILITY TRANSISTORS; BOOST
CONVERTER; LEAKAGE CURRENT; GAN-HEMT; HFETS; POWER; RAMAN; PASSIVATION
AB A comparative study of AlGaN/GaN high-electron-mobility transistor (HEMT) surface passivation using ex situ and in situ deposited SiNx is presented. Performing ex situ SiNx passivation increased the reverse gate leakage and off-state channel leakage by about three orders of magnitude. The in situ SiNx layer was characterized using transmission electron microscopy (TEM) and capacitance-voltage (CV) measurements. Photoluminescence (PL) spectra indicated a reduction of nonradiative recombination centers in in situ SiNx-passivated samples, indicating improved crystal quality. CV measurements indicated a reduction of surface state density as well, and thus better overall passivation using in situ SiNx. Electroluminescence (EL) images of the channel regions in AlGaN/GaN HEMT devices operating in forward blocking mode with up to 400 V drain bias demonstrated reduced channel emission profiles of in situ-passivated devices. Compared with a nonpassivated reference sample, the reduced EL emission profiles correlated with a reduced channel temperature on ex situ SiNx-passivated devices.
C1 [Tadjer, Marko J.] Univ Maryland, College Pk, MD 20742 USA.
[Anderson, Travis J.; Hobart, Karl D.; Mastro, Michael A.; Hite, Jennifer K.; Caldwell, Joshua D.; Picard, Yoosuf N.; Kub, Fritz J.; Eddy, Charles R., Jr.] USN, Res Lab, Washington, DC 20375 USA.
RP Tadjer, MJ (reprint author), Univ Maryland, College Pk, MD 20742 USA.
EM mtadjer@umd.edu
RI Caldwell, Joshua/B-3253-2008; Hite, Jennifer/L-5637-2015;
OI Caldwell, Joshua/0000-0003-0374-2168; Hite,
Jennifer/0000-0002-4090-0826; Picard, Yoosuf/0000-0002-2853-5213
NR 31
TC 12
Z9 12
U1 2
U2 21
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD NOV
PY 2010
VL 39
IS 11
SI SI
BP 2452
EP 2458
DI 10.1007/s11664-010-1343-9
PG 7
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 665AV
UT WOS:000283007300014
ER
PT J
AU Huntsberger, T
Keegan, M
Brizzolara, R
AF Huntsberger, Terry
Keegan, Michael
Brizzolara, Robert
TI Special Issue on State of the Art in Maritime Autonomous Surface and
Underwater Vehicles, Part 1
SO JOURNAL OF FIELD ROBOTICS
LA English
DT Editorial Material
C1 [Keegan, Michael] USN, Undersea Warfare Ctr, Newport, RI USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1556-4959
J9 J FIELD ROBOT
JI J. Field Robot.
PD NOV-DEC
PY 2010
VL 27
IS 6
SI SI
BP 699
EP 701
DI 10.1002/rob.20375
PG 3
WC Robotics
SC Robotics
GA 670BJ
UT WOS:000283394900001
ER
PT J
AU Benjamin, MR
Schmidt, H
Newman, PM
Leonard, JJ
AF Benjamin, Michael R.
Schmidt, Henrik
Newman, Paul M.
Leonard, John J.
TI Nested Autonomy for Unmanned Marine Vehicles with MOOS-IvP
SO JOURNAL OF FIELD ROBOTICS
LA English
DT Article
ID UNDERWATER VEHICLES; ARCHITECTURE
AB This document describes the MOOS-IvP autonomy software for unmanned marine vehicles and its use in largescale ocean sensing systems. MOOS-IvP is composed of two open-source software projects funded by the Office of Naval Research. MOOS provides a core autonomy middleware capability, and the MOOS project additionally provides a set of ubiquitous infrastructure utilities. The IvP Helm is the primary component of an additional set of capabilities implemented to form a full marine autonomy suite known as MOOS-IvP. This software and architecture are platform and mission agnostic and allow for a scalable nesting of unmanned vehicle nodes to form large-scale, long-endurance ocean sensing systems composed of heterogeneous platform types with varying degrees of communications connectivity, bandwidth, and latency. Published 2010 Wiley Periodicals, Inc.
C1 [Benjamin, Michael R.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
[Schmidt, Henrik] MIT, Dept Mech Engn, Lab Autonomous Marine Sensing Syst, Cambridge, MA 02139 USA.
[Newman, Paul M.] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England.
[Leonard, John J.] MIT, Dept Mech Engn, Comp Sci & Artificial Intelligence Lab, Cambridge, MA 02139 USA.
RP Benjamin, MR (reprint author), USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
EM michael.r.benjamin@navy.mil; henrik@mit.edu; pnewman@robots.ox.ac.uk;
jleonard@mit.edu
FU Office of Naval Research (ONR) [N-00014-97-1-0202]; ONR under GOATS
[N-00014-08-1-0013]; ONR [N-00014-08-1-0011, 311]; Naval Undersea
Warfare Center in Newport, Rhode Island
FX The prototype of MOOS was developed by Paul Newman at MIT under the
GOATS'2000 NURC Joint Research Program, with Office of Naval Research
(ONR) support from Grant N-00014-97-1-0202 (Program Managers Tom Curtin,
Jeff Simmen, Tom Swean, and Randy Jacobson). The development of the
nested autonomy concept for environmental acoustic sensing and the MIT
component of the GLINT'08 experiment was funded by the ONR under the
GOATS program, Grant N-00014-08-1-0013 (Program Manager Ellen
Livingston). The development of the unified communication, command, and
control infrastructure and the execution of the SWAMSI09 experiment were
supported by ONR, Grant N-00014-08-1-0011 (Program Manager Bob
Headrick). The IvP-Helm autonomy software and the basic research
involved in the interval programming model for multiobjective
optimization were developed under support from ONR Code 311 (Program
Managers Don Wagner and Behzad Kamgar-Parsi). Prior prototype
development of IvP concepts benefited from the support of the In-house
Laboratory Independent Research (ILIR) program at the Naval Undersea
Warfare Center in Newport, Rhode Island. The NATO Undersea Research
Centre (NURC) has supported the development of the MOOS-IvP nested
autonomy concept by conducting seven major field experiments, in which
MIT LAMSS has been a partner, including GOATS'2000 and '2002, FAF'2003,
FAF'2005, CCLNet'08, GLINT'08, and GLINT'09. Without the world-class
seagoing experiment capabilities of NURC, with its state-of-the-art RVs,
NRV Alliance and CRV Leonardo, and their outstanding crew, and NURC's
excellent engineering and logistics support, the nested autonomy concept
and the underlying MOOS-IvP software base would not have reached the
level of sophistication and robustness that it has achieved.
NR 22
TC 53
Z9 53
U1 0
U2 9
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1556-4959
J9 J FIELD ROBOT
JI J. Field Robot.
PD NOV-DEC
PY 2010
VL 27
IS 6
SI SI
BP 834
EP 875
DI 10.1002/rob.20370
PG 42
WC Robotics
SC Robotics
GA 670BJ
UT WOS:000283394900009
ER
PT J
AU Connatser, RM
Prokes, SM
Glembocki, OJ
Schuler, RL
Gardner, CW
Lewis, SA
Lewis, LA
AF Connatser, R. Maggie
Prokes, Sharka M.
Glembocki, Orest J.
Schuler, Rebecca L.
Gardner, Charles W.
Lewis, Samuel A., Sr.
Lewis, Linda A.
TI Toward Surface-Enhanced Raman Imaging of Latent Fingerprints
SO JOURNAL OF FORENSIC SCIENCES
LA English
DT Article
DE forensic science; latent fingerprints; fingerprint degradation; surface
enhanced Raman spectroscopy; enhancement factor; dispersible Raman
substrates; dielectric core-metal shell nanowires; macro-Raman chemical
imaging
ID OPTICAL-PROPERTIES; POLYMER NANOCOMPOSITES; SPECTROSCOPY; SCATTERING;
SERS; ACIDS
AB Exposure to light or heat, or simply a dearth of fingerprint material, renders some latent fingerprints undetectable using conventional methods. We begin to address such elusive fingerprints using detection targeting photo- and thermally stable fingerprint constituents: surface-enhanced Raman spectroscopy (SERS). SERS can give descriptive vibrational spectra of amino acids, among other robust fingerprint constituents, and good sensitivity can be attained by improving metal-dielectric nanoparticle substrates. With SERS chemical imaging, vibrational bands' intensities recreate a visual of fingerprint topography. The impact of nanoparticle synthesis route, dispersal methodology-deposition solvent, and laser wavelength are discussed, as are data from enhanced vibrational spectra of fingerprint components. SERS and Raman chemical images of fingerprints and realistic contaminants are shown. To our knowledge, this represents the first SERS imaging of fingerprints. In conclusion, this work progresses toward the ultimate goal of vibrationally detecting latent prints that would otherwise remain undetected using traditional development methods.
C1 [Connatser, R. Maggie; Lewis, Samuel A., Sr.; Lewis, Linda A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Prokes, Sharka M.] USN, Res Lab, Washington, DC 20375 USA.
[Glembocki, Orest J.; Schuler, Rebecca L.; Gardner, Charles W.] ChemImage Corp, Pittsburgh, PA 15208 USA.
RP Connatser, RM (reprint author), Oak Ridge Natl Lab, NTRC Bldg,2360 Cherahala Blvd, Knoxville, TN 37932 USA.
EM connatserrm@ornl.gov
FU High Temperature Materials Laboratory at Oak Ridge National Lab;
National Institute of Justice; Office of Naval Research; Technical
Support Working Group
FX We gratefully acknowledge microscopy support by Jane Y. Howe at the High
Temperature Materials Laboratory at Oak Ridge National Lab.; Supported
by grants from the National Institute of Justice, the Office of Naval
Research, and the Technical Support Working Group.
NR 35
TC 33
Z9 33
U1 9
U2 64
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0022-1198
J9 J FORENSIC SCI
JI J. Forensic Sci.
PD NOV
PY 2010
VL 55
IS 6
BP 1462
EP 1470
DI 10.1111/j.1556-4029.2010.01484.x
PG 9
WC Medicine, Legal
SC Legal Medicine
GA 674HH
UT WOS:000283727700008
PM 20629909
ER
PT J
AU Cowling, ID
Yakimenko, OA
Whidborne, JF
Cooke, AK
AF Cowling, Ian D.
Yakimenko, Oleg A.
Whidborne, James F.
Cooke, Alastair K.
TI Direct Method Based Control System for an Autonomous Quadrotor
SO JOURNAL OF INTELLIGENT & ROBOTIC SYSTEMS
LA English
DT Article
DE Inverse dynamics based control; Differential flatness; Virtual domain
parameterization; Autonomous systems; Quadrotor
ID DIRECT TRAJECTORY OPTIMIZATION; DIFFERENTIAL INCLUSION; INVERSE
DYNAMICS; MINI ROTORCRAFT; COLLOCATION; TRACKING
AB This paper proposes a real time control algorithm for autonomous operation of a quadrotor unmanned air vehicle. The quadrotor is a small agile vehicle, which as well as being a excellent test bed for advanced control techniques could also be suitable for internal surveillance, search and rescue and remote inspection. The proposed control scheme incorporates two key aspects of autonomy; trajectory planning and trajectory following. Using the differentially-flat dynamics property of the system, the trajectory optimization is posed as a non-linear constrained optimization within the output space in the virtual domain, not explicitly related to the time domain. A suitable parameterization using a virtual argument as opposed to time is applied, which ensures initial and terminal constraint satisfaction. The speed profile is optimized independently, followed by the mapping to the time domain achieved using a speed factor. Trajectory following is achieved with a standard multi-variable control technique and a digital switch is used to re-optimize the reference trajectory in the event of infeasibility or mission change. The paper includes simulations using a full dynamic model of the quadrotor demonstrating the suitability of the proposed control scheme.
C1 [Yakimenko, Oleg A.] USN, Dept Mech & Aerosp Engn, Postgrad Sch, Monterey, CA 93943 USA.
[Whidborne, James F.; Cooke, Alastair K.] Cranfield Univ, Dept Aerosp Sci, Cranfield MK43 0AL, Beds, England.
RP Yakimenko, OA (reprint author), USN, Dept Mech & Aerosp Engn, Postgrad Sch, Monterey, CA 93943 USA.
EM ian@bbsr.co.uk; oayakime@nps.edu; j.f.whidborne@cranfield.ac.uk;
a.cooke@cranfield.ac.uk
RI Whidborne, James/N-1768-2014
OI Whidborne, James/0000-0002-6310-8946
NR 59
TC 20
Z9 21
U1 2
U2 17
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0921-0296
EI 1573-0409
J9 J INTELL ROBOT SYST
JI J. Intell. Robot. Syst.
PD NOV
PY 2010
VL 60
IS 2
BP 285
EP 316
DI 10.1007/s10846-010-9416-9
PG 32
WC Computer Science, Artificial Intelligence; Robotics
SC Computer Science; Robotics
GA 655ST
UT WOS:000282270500006
ER
PT J
AU Johnson, B
Kidwell, ME
Michael, TS
AF Johnson, Brenda
Kidwell, Mark E.
Michael, T. S.
TI INTRINSICALLY KNOTTED GRAPHS HAVE AT LEAST 21 EDGES
SO JOURNAL OF KNOT THEORY AND ITS RAMIFICATIONS
LA English
DT Article
DE Intrinsically knotted graphs; delta-wye operation
ID SPATIAL GRAPHS; CONJECTURE; MINORS
AB We prove that every intrinsically knotted graph has at least 21 edges.
C1 [Johnson, Brenda] Union Coll, Dept Math, Schenectady, NY 12308 USA.
[Kidwell, Mark E.; Michael, T. S.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Johnson, B (reprint author), Union Coll, Dept Math, Schenectady, NY 12308 USA.
EM johnsonb@union.edu; mek@usna.edu; tsm@usna.edu
NR 12
TC 4
Z9 4
U1 0
U2 0
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-2165
J9 J KNOT THEOR RAMIF
JI J. Knot Theory Ramifications
PD NOV
PY 2010
VL 19
IS 11
BP 1423
EP 1429
DI 10.1142/S0218216510008455
PG 7
WC Mathematics
SC Mathematics
GA 695GZ
UT WOS:000285359900002
ER
PT J
AU Lambrakos, SG
AF Lambrakos, S. G.
TI Spatial Modulation and Filtering of Diffusion Patterns for Inverse
Analysis of Heat Deposition
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE joining; modeling processes; welding
ID WELDS; CONDUCTION; MODEL
AB General parameterizations are constructed for spatial modulation and filtering of heat diffusion patterns according to general energy deposition characteristics occurring within a volume of material resulting from a volumetrically coupled energy source. These parameterizations include previously constructed models of energy deposition as special cases. The construction of a general parameterization of energy deposition processes is necessary for their inverse analysis. The structure of such a parameterization follows from the concepts of model and data spaces that imply the existence of an optimal parametric representation for a given class of inverse problems. Accordingly, the optimal parametric representation is determined by the characteristics of the available data, which in principle can contain both experimental measurements and numerical simulation data. Parameterizations for spatial modulation and filtering of heat diffusion follow from the observation that many different types of energy deposition processes can be represented by weighted sums of basis functions whose general forms are that of spatially modulated or filtered diffusion. A significant aspect of the parameterizations presented is that the definition of the inverse heat deposition problem, which is adopted for their construction, provides a rigorous foundation for a highly flexible and general parameterization of energy deposition processes, which is essential for their inverse analysis. A preliminary proof is presented that shows the significance of these parameterizations for the application of similarity transformations to the inverse analysis of energy deposition processes. The applicability of similarity transforms to the inverse analysis of heat deposition is another property that follows from the specific definition of the inverse heat deposition problem considered here.
C1 USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
RP Lambrakos, SG (reprint author), USN, Res Lab, Div Mat Sci & Technol, Code 6390, Washington, DC 20375 USA.
EM lambrakos@nrl.navy.mil
FU Naval Research Laboratory (NRL)
FX One of the authors (SGL) acknowledges the support by the Naval Research
Laboratory (NRL) internal core program.
NR 59
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD NOV
PY 2010
VL 19
IS 8
BP 1104
EP 1115
DI 10.1007/s11665-009-9592-6
PG 12
WC Materials Science, Multidisciplinary
SC Materials Science
GA 668XH
UT WOS:000283307900003
ER
PT J
AU Barbara, KA
Farzeli, A
Ibrahim, IN
Antonjaya, U
Yunianto, A
Winoto, I
Ester
Perwitasari, D
Widjaya, S
Richards, AL
Williams, M
Blair, PJ
AF Barbara, Kathryn A.
Farzeli, Arik
Ibrahim, Ima N.
Antonjaya, Ungke
Yunianto, Andre
Winoto, Imelda
Ester
Perwitasari, Dian
Widjaya, Susana
Richards, Allen L.
Williams, Maya
Blair, Patrick J.
TI Rickettsial Infections of Fleas Collected From Small Mammals on Four
Islands in Indonesia
SO JOURNAL OF MEDICAL ENTOMOLOGY
LA English
DT Article
DE Xenopsylla cheopis; rickettsia; small mammals; Indonesia
ID FEVER GROUP RICKETTSIAE; MURINE TYPHUS; XENOPSYLLA-CHEOPIS;
TRANSMISSION; FELIS
AB Ectoparasites were sampled from small mammals collected in West Java, West Sumatra, North Sulawesi, and East Kalimantan, Indonesia, in 2007-2008 and were screened for evidence of infection from bacteria in the Rickettsaceae family. During eight trap nights at eight sites, 208 fleas were collected from 96 of 507 small mammals trapped from four orders (379 Rodentia; 123 Soricomorpha; two Carnivora; three Scandentia). Two species of fleas were collected: Xenopsylla cheopis (n = 204) and Nosopsyllus spp. (n = 4). Among the 208 fleas collected, 171 X. cheopis were removed from rats (Rattus spp.) and 33 X, cheopis from shrews (Suncus murinus). X. cheopis were pooled and tested for DNA from rickettsial agents Rickettsia typhi, Rickettsia felis, and spotted fever group rickettsiae. R. typhi, the agent of murine typhus, was detected in X. cheopis collected from small mammals in West Java and East Kalimantan. R. felis was detected in X. cheopis collected from small mammals in Manado, North Sulawesi. R. felis and spotted fever group rickettsiae were detected in a pool of X. cheopis collected from an animal in East Kalimantan. Sixteen percent of the X. cheopis pools were found positive for Rickettsia spp.; four (10.8%) R. typhi, one (2.7%) R. fells, and one (2.7%) codetection of R. felis aid a spotted fever group rickettsia. These data suggest that rickettsial infections remain a threat to human health across Indonesia.
C1 [Barbara, Kathryn A.; Farzeli, Arik; Antonjaya, Ungke; Winoto, Imelda; Ester; Widjaya, Susana; Williams, Maya; Blair, Patrick J.] USN, Med Res Unit 2, Jakarta, Indonesia.
[Richards, Allen L.] USN, Med Res Ctr, Silver Spring, MD 20910 USA.
[Barbara, Kathryn A.] Navy Environm Prevent, Med Unit 2, Norfolk, VA 23511 USA.
RP Barbara, KA (reprint author), Navy Environm Prevent, Med Unit 2, 1887 Powhatan St, Norfolk, VA 23511 USA.
EM kbarbara@bvwireless.net
RI Valle, Ruben/A-7512-2013
FU United States Department of Defense Armed Forces Health Surveillance
Center
FX We thank H. Yudhi Prayudha Isak Djuarsa (West Java Province), Hj.
Rosmini Savitrim (West Sumatera Province), H. Andi Madjid Nurdin (East
Kalimantan Province), and Engelberth Emil Pijoh (North Sulawesi
Province) for their strong support of this project. This work was
supported by the United States Department of Defense Armed Forces Health
Surveillance Center. The opinions or assertions expressed herein are the
private views of the authors and are not to be construed as representing
those of the Department of Defense or the Department of the Navy.
NR 19
TC 8
Z9 9
U1 1
U2 5
PU ENTOMOLOGICAL SOC AMER
PI LANHAM
PA 10001 DEREKWOOD LANE, STE 100, LANHAM, MD 20706-4876 USA
SN 0022-2585
J9 J MED ENTOMOL
JI J. Med. Entomol.
PD NOV
PY 2010
VL 47
IS 6
BP 1173
EP 1178
DI 10.1603/ME10064
PG 6
WC Entomology; Veterinary Sciences
SC Entomology; Veterinary Sciences
GA 684RR
UT WOS:000284567500028
PM 21175069
ER
PT J
AU Hoel, DF
Kline, DL
Hogsette, JA
Bernier, UR
El-Hossary, SS
Hanafi, HA
Watany, N
Fawaz, EY
Furman, BD
Obenauer, PJ
Szumlas, DE
AF Hoel, D. F.
Kline, D. L.
Hogsette, J. A.
Bernier, U. R.
El-Hossary, S. S.
Hanafi, H. A.
Watany, N.
Fawaz, E. Y.
Furman, B. D.
Obenauer, P. J.
Szumlas, D. E.
TI Efficacy of Commercial Mosquito Traps in Capturing Phlebotomine Sand
Flies (Diptera: Psychodidae) in Egypt
SO JOURNAL OF MEDICAL ENTOMOLOGY
LA English
DT Article
DE baited trap; carbon dioxide; BG-Sentinel trap; Mosquito Magnet Pro trap;
Phlebotomus papatasi
ID L-LACTIC ACID; US MILITARY OPERATIONS; TALLIL-AIR BASE; CARBON-DIOXIDE;
SOUTHERN EGYPT; AEDES-ALBOPICTUS; 1-OCTEN-3-OL; SANDFLIES; ATTRACTANTS;
NORTH
AB Four types of commercial mosquito control traps, the Mosquito Magnet Pro (MMP), the Sentinel 360 (S360), the BC-Sentinel (BGS), and the Mega-Catch Ultra (MCU), were compared with a standard Centers for Disease Control and Prevention (CDC) light trap for efficacy in collecting phlebotomine sand flies (Diptera: Psychodidae) in a small farming village in the Nile River Valley 10 km north of Aswan, Egypt. Each trap was baited with either carbon dioxide (CO(2)) from combustion of butane gas (MMP), dry ice (CDC and BGS traps), light (MCU and S360), or dry ice and light (CDC). Traps were rotted through five sites in a 5 X 5 Latin square design, repeated four times during the height of the sand fly season (June, August, and September 2007) at a site where 94% of sand flies in past collections were Phlebotomus papatasi (Scopoli). A total of 6,440 sand flies was collected, of which 6,037 (93.7%) were P. papatasi. Of the CO(2)-baited traps, the BGS trap collected twice as many P. papatasi as the MMP and CDC light traps, and at least three times more P. papatasi than the light-only MCU and S360 traps (1 < 0.05). Mean numbers (+/-SE) of P. papatasi captured per trap night were as follows: BGS 142.1 (+/-45.8) > MMP 56.8 (+/-9.0) > CDC 52.3 (+/-6.1) > MCU 38.2 (+/-6.4) > S360 12.5 (+/-1.8). Results indicate that several types of commercial traps are suitable substitutes for the CDC light trap in sand fly surveillance programs.
C1 [Hoel, D. F.] ARS, Med Entomol Collaborat, Navy Marine Corps Publ Hlth Ctr Detachment, USDA,Ctr Med Agr & Vet Entomol, Gainesville, FL 32608 USA.
[El-Hossary, S. S.; Hanafi, H. A.; Watany, N.; Fawaz, E. Y.; Furman, B. D.; Obenauer, P. J.] USN, Med Res Unit 3, Cairo, Egypt.
[Szumlas, D. E.] Ctr Dis Control & Prevent, Atlanta, GA 30341 USA.
RP Hoel, DF (reprint author), ARS, Med Entomol Collaborat, Navy Marine Corps Publ Hlth Ctr Detachment, USDA,Ctr Med Agr & Vet Entomol, 1600 SW 23rd Dr, Gainesville, FL 32608 USA.
EM David.Hoel@ars.usda.gov
FU Deployed War-Fighter Protection Research Program; Military Infectious
Diseases Research Program
FX We thank Maria Badra of the United States Naval Medical Research Unit
No. 3 for her assistance with logistics for all personnel and materials
pertaining to this study, and to El-Shaimaa Nour El-Din and Rania Kaldas
for their help in processing and identifying sand fly specimens. This
work was conducted concurrently with other Deployed War-Fighter
Protection Research Program- and Military Infectious Diseases Research
Program-supported projects and, as such, was made possible from these
funding sources.
NR 28
TC 9
Z9 9
U1 0
U2 2
PU ENTOMOLOGICAL SOC AMER
PI LANHAM
PA 10001 DEREKWOOD LANE, STE 100, LANHAM, MD 20706-4876 USA
SN 0022-2585
J9 J MED ENTOMOL
JI J. Med. Entomol.
PD NOV
PY 2010
VL 47
IS 6
BP 1179
EP 1184
DI 10.1603/ME10144
PG 6
WC Entomology; Veterinary Sciences
SC Entomology; Veterinary Sciences
GA 684RR
UT WOS:000284567500029
PM 21175070
ER
PT J
AU Politzer, P
Murray, JS
Bulat, FA
AF Politzer, Peter
Murray, Jane S.
Bulat, Felipe A.
TI Average local ionization energy: A review
SO JOURNAL OF MOLECULAR MODELING
LA English
DT Article; Proceedings Paper
CT International Workshop on Modeling Interaction in Biomolecules IV
CY SEP 14-19, 2009
CL Hruba Skala, CZECH REPUBLIC
DE Atomic shell structure; Average local ionization energy; Carbon
nanotubes; Electronegativity; Local polarizability and hardness;
Molecular reactivity
ID DENSITY-FUNCTIONAL THEORY; SURFACE-ELECTROSTATIC POTENTIALS; ATOMIC
SHELL STRUCTURE; SHAM ORBITAL ENERGIES; STATIC DIPOLE POLARIZABILITY;
KOHN-SHAM; HARTREE-FOCK; MOLECULAR-SURFACES; FUKUI FUNCTION; ELECTRIC
POLARIZABILITIES
AB The average local ionization energy (I) over bar (r) is the energy necessary to remove an electron from the point r in the space of a system. Its lowest values reveal the locations of the least tightly-held electrons, and thus the favored sites for reaction with electrophiles or radicals. In this paper, we review the definition of (I) over bar (r) and some of its key properties. Apart from its relevance to reactive behavior, (I) over bar (r) has an important role in several fundamental areas, including atomic shell structure, electronegativity and local polarizability and hardness. All of these aspects of (I) over bar (r) are discussed.
C1 [Politzer, Peter; Murray, Jane S.] CleveTheoComp, Cleveland, OH 44113 USA.
[Bulat, Felipe A.] USN, Res Lab, Washington, DC 20375 USA.
RP Politzer, P (reprint author), CleveTheoComp, 1951 W 26th St,Suite 409, Cleveland, OH 44113 USA.
EM ppolitze@uno.edu
NR 148
TC 78
Z9 78
U1 2
U2 42
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1610-2940
EI 0948-5023
J9 J MOL MODEL
JI J. Mol. Model.
PD NOV
PY 2010
VL 16
IS 11
BP 1731
EP 1742
DI 10.1007/s00894-010-0709-5
PG 12
WC Biochemistry & Molecular Biology; Biophysics; Chemistry,
Multidisciplinary; Computer Science, Interdisciplinary Applications
SC Biochemistry & Molecular Biology; Biophysics; Chemistry; Computer
Science
GA 658UR
UT WOS:000282515400008
PM 20411398
ER
PT J
AU Hwang, PA
AF Hwang, Paul A.
TI Comments on "Relating the Drag Coefficient and the Roughness Length over
the Sea to the Wavelength of the Peak Waves"
SO JOURNAL OF PHYSICAL OCEANOGRAPHY
LA English
DT Editorial Material
ID WIND STRESS
C1 USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Hwang, PA (reprint author), USN, Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil
NR 7
TC 4
Z9 4
U1 1
U2 5
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-3670
J9 J PHYS OCEANOGR
JI J. Phys. Oceanogr.
PD NOV
PY 2010
VL 40
IS 11
BP 2556
EP 2562
DI 10.1175/2010JPO4409.1
PG 7
WC Oceanography
SC Oceanography
GA 690AR
UT WOS:000284972900014
ER
PT J
AU Knoepp, LR
Shippey, SH
Grace, CC
Cundiff, GW
Derogatis, LR
Handa, VL
AF Knoepp, Leise R.
Shippey, Stuart H.
Grace, Chi Chiung
Cundiff, Geoffrey W.
Derogatis, Leonard R.
Handa, Victoria L.
TI Sexual Complaints, Pelvic Floor Symptoms, and Sexual Distress in Women
over Forty
SO JOURNAL OF SEXUAL MEDICINE
LA English
DT Article
DE Sexual Distress; FSDS; SPEQ; PISQ
ID DYSFUNCTION; INCONTINENCE; PREVALENCE; SAMPLE; SCALE
AB Introduction.
The American Psychiatric Association recommends considering sexually related personal distress when assessing female sexual dysfunction. Currently, there is little data regarding the impact of sexual complaints on sexual distress.
Aim.
To investigate the association between sexual complaints and perceived sexual distress in a population of ambulatory adult women.
Methods.
Using the short forms of the Personal Experiences Questionnaire and Pelvic Organ Prolapse/Urinary Incontinence Sexual Function Questionnaire, we assessed sexual complaints among 305 women seeking outpatient gynecologic care. Depressive symptoms were quantified using the Center for Epidemiologic Studies Depression (CESD) score. Sexual distress was measured using the Female Sexual Distress Scale (FSDS). Using multivariable logistic regression, we compared sexual complaints between distressed and nondistressed women.
Main Outcome Measures.
Sexual distress, defined by FSDS score >= 15.
Results.
FSDS scores were available for 292/305 participants. Seventy-six (26%) scores reflected distress. Distressed women were more likely to be younger (55.2 +/- 1.0 years vs. 56.7 +/- 0.8 years, P = 0.017); have higher CESD scores (16.6 vs. 9.5, P = 0.001); and report decreased arousal (56.8% vs. 25.1%, P = 0.001), infrequent orgasm (54% vs. 28.8%, P = 0.001), and dyspareunia (39.7% vs. 10.6%, P = 0.001). Women with sexual distress were also more likely to report sexual difficulty related to pelvic floor symptoms, including urinary incontinence with sexual activity (9% vs. 1.3%, P = 0.005), sexual avoidance due to vaginal prolapse (13.9% vs. 1%, P = 0.001), or sexual activity restriction due to fear of urinary incontinence (14.9% vs. 0.5%, P = 0.001). After multivariate analysis, sexual distress was significantly associated with dyspareunia (odds ratio [OR] 3.11, P = 0.008) and depression score (OR 1.05, P = 0.006), and inversely associated with feelings of arousal during sex (OR 0.19, P = 0.001).
Conclusion.
Our results indicate that sexually related personal distress is significantly associated with dyspareunia, depressive symptoms, and decreased arousal during sexual activity. This contributes to our understanding of how sexual complaints may adversely affect women's quality of life. Knoepp LR, Shippey SH, Chen CCG, Cundiff GW, Derogatis LR, and Handa VL. Sexual complaints, pelvic floor symptoms, and sexual distress in women over forty. J Sex Med 2010;7:3675-3682.
C1 [Knoepp, Leise R.] Johns Hopkins Univ, Dept Gynecol & Obstet, Johns Hopkins Bayview Med Ctr, Sch Med, Baltimore, MD 21224 USA.
[Shippey, Stuart H.] Naval Med Ctr Portsmouth, Dept Obstet & Gynecol, Portsmouth, VA USA.
[Cundiff, Geoffrey W.] Univ British Columbia, Dept Obstet & Gynaecol, Vancouver, BC V5Z 1M9, Canada.
[Derogatis, Leonard R.] Johns Hopkins Univ, Sch Med, Dept Psychiat, Baltimore, MD 21205 USA.
RP Knoepp, LR (reprint author), Johns Hopkins Univ, Dept Gynecol & Obstet, Johns Hopkins Bayview Med Ctr, Sch Med, 4940 Eastern Ave,Room A-121, Baltimore, MD 21224 USA.
EM lknoepp@gmail.com
FU NICHD NIH HHS [K23 HD045806]
NR 20
TC 22
Z9 25
U1 2
U2 4
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1743-6095
J9 J SEX MED
JI J. Sex. Med.
PD NOV
PY 2010
VL 7
IS 11
BP 3675
EP 3682
DI 10.1111/j.1743-6109.2010.01955.x
PG 8
WC Urology & Nephrology
SC Urology & Nephrology
GA 672PG
UT WOS:000283598000016
PM 20704643
ER
PT J
AU Piquette, JC
AF Piquette, Jean C.
TI Approximate transducer transient suppression with increased output
amplitude
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
AB A technique for the rapid, smooth turn-on of a transducer is described. The method is based on a previously described technique [J. C. Piquette, J. Acoust. Soc. Am. 92, 1203-1213 (1992)]. In the previous method, transducer output amplitude is severely reduced compared to that obtained when driving the transducer using a standard gated sine due to the presence of a ramp component in the transient-suppressing voltage waveform. In the present work, approximate methods that eliminate the ramp component are described. Eliminating the ramp component results in significantly greater output amplitude, although the level of transient suppression that is achieved is not as good as that seen when using the exact transient-suppressing drive. Nonetheless, the smoothness (i.e., lack of spikes) in the transducer response is not compromised by the approximations. [DOI: 10.1121/1.3490855]
C1 USN, Undersea Warfare Ctr, Div Newport, Newport, RI 02841 USA.
RP Piquette, JC (reprint author), USN, Undersea Warfare Ctr, Div Newport, 1176 Howell St, Newport, RI 02841 USA.
EM jean.piquette@navy.mil
FU PMS450
FX Funding for the present work provided by PMS450, Program Executive
Officer (Submarines), is gratefully acknowledged.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD NOV
PY 2010
VL 128
IS 5
BP 2543
EP 2548
DI 10.1121/1.3490855
PG 6
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 685GT
UT WOS:000284617900026
PM 21110552
ER
PT J
AU Nho, SJ
Strauss, EJ
Lenart, BA
Provencher, MT
Mazzocca, AD
Verma, NN
Romeo, AA
AF Nho, Shane J.
Strauss, Eric J.
Lenart, Brett A.
Provencher, Matthew T.
Mazzocca, Augustus D.
Verma, Nikhil N.
Romeo, Anthony A.
TI Long Head of the Biceps Tendinopathy: Diagnosis and Management
SO JOURNAL OF THE AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS
LA English
DT Review
ID BIOABSORBABLE INTERFERENCE SCREW; SUPERIOR LABRUM ANTERIOR; ROTATOR CUFF
REPAIR; 4-YEAR FOLLOW-UP; BIOMECHANICAL EVALUATION; ARTHROSCOPIC
FINDINGS; TENODESIS TECHNIQUES; FIXATION TECHNIQUES; MAGNETIC-RESONANCE;
MR ARTHROGRAPHY
AB Tendinopathy of the long head of the biceps brachii encompasses a spectrum of pathology ranging from inflammatory tendinitis to degenerative tendinosis. Disorders of the long head of the biceps often occur in conjunction with other shoulder pathology. A thorough patient history, physical examination, and radiographic evaluation are necessary for diagnosis. Nonsurgical management, including rest, nonsteroidal anti-inflammatory drugs, physical therapy, and injections, is attempted first in patients with mild disease. Surgical management is indicated for refractory or severe disease. In addition to simple biceps tenotomy, a variety of tenodesis techniques has been described. Open biceps tenodesis has been used historically. However, promising results have recently been reported with arthroscopic tenodesis.
C1 [Nho, Shane J.; Strauss, Eric J.; Lenart, Brett A.; Verma, Nikhil N.; Romeo, Anthony A.] Rush Univ, Med Ctr, Dept Orthopaed Surg, Sect Shoulder & Elbow Surg,Div Sports Med, Chicago, IL 60612 USA.
[Provencher, Matthew T.] USN, Dept Orthopaed Surg, Med Ctr, San Diego, CA 92152 USA.
[Mazzocca, Augustus D.] Univ Connecticut, Ctr Hlth, New England Musculoskeletal Inst, Farmington, CT USA.
RP Nho, SJ (reprint author), Rush Univ, Med Ctr, Dept Orthopaed Surg, Sect Shoulder & Elbow Surg,Div Sports Med, Chicago, IL 60612 USA.
OI Romeo, Anthony/0000-0003-4848-3411
FU Arthrex; DJ Orthopaedics; Linvatec; Smith Nephew; Athletico; MioMed;
Ossur
FX Dr. Nho or an immediate family member has received research or
institutional support from Arthrex, DJ Orthopaedics, Linvatec, Smith &
Nephew, Athletico, and MioMed. Dr. Provencher or an immediate family
member serves as a board member, owner, officer, or committee member of
the American Orthopaedic Society for Sports Medicine, Arthroscopy
Association of North America, American Academy of Orthopaedic Surgeons,
and Society of Military Orthopaedic Surgeons. Dr. Mazzocca or an
immediate family member is a member of a speakers' bureau or has made
paid presentations on behalf of, serves as a paid consultant to or is an
employee of, and has received research or institutional support from
Arthrex. Dr. Verma or an immediate family member is a member of a
speakers' bureau or has made paid presentations on behalf of Smith &
Nephew and Arthrosurface; serves as a paid consultant to or is an
employee of Smith & Nephew; has received research or institutional
support from Smith & Nephew, DJ Orthopaedics, Arthrex, and Ossur; and
has stock or stock options held in Omeros. Dr. Romeo or an immediate
family member has received royalties from Arthrex; is a member of a
speakers' bureau or has made paid presentations on behalf of Arthrex and
DJ Orthopaedics; serves as a paid consultant to or is an employee of
Arthrex; has received research or institutional support from Arthrex,
Ossur, and Smith & Nephew; has received nonincome support (such as
equipment or services), commercially derived honoraria, or other
non-research-related funding (such as paid travel) from Arthrex and DJ
Orthopaedics; and serves as a board member, owner, officer, or committee
member of the American Orthopaedic Society for Sports Medicine, American
Shoulder and Elbow Surgeons, and Arthroscopy Association of North
America. Neither of the following authors nor any immediate family
member has received anything of value from or owns stock in a commercial
company or institution related directly or indirectly to the subject of
this article: Dr. Strauss and Dr. Lenart.
NR 63
TC 48
Z9 50
U1 0
U2 5
PU AMER ACAD ORTHOPAEDIC SURGEONS
PI ROSEMENT
PA 6300 N RIVER ROAD, ROSEMENT, IL 60018-4262 USA
SN 1067-151X
J9 J AM ACAD ORTHOP SUR
JI J. Am. Acad. Orthop. Surg.
PD NOV
PY 2010
VL 18
IS 11
BP 645
EP 656
PG 12
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 672UI
UT WOS:000283612000002
PM 21041799
ER
PT J
AU Hodyss, D
Hendricks, E
AF Hodyss, Daniel
Hendricks, Eric
TI The Resonant Excitation of Baroclinic Waves by the Divergent Circulation
of Recurving Tropical Cyclones
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID EXTRATROPICAL TRANSITION; DOWNSTREAM IMPACTS; ENERGY DISPERSION;
BETA-PLANE; FLOW; MODEL; MOTION; STABILITY; DYNAMICS; SYSTEMS
AB This paper explores the hypothesis that a tropical cyclone (TC) may produce baroclinic waves through the divergent circulation that arises from its low level inflow and upper level outflow The model setting is a quasigeostrophic (QG) two layer fluid in which the effect of the tropical cyclone is parameterized through a source term on the QG potential vorticity equation Equations predicting the spectral subset of baroclinic waves that are excited through linear resonance are derived The near TC pattern of the barochnic waves in the streamfunction field typically takes the form of a ridge trough couplet whose phase with respect to the TC varies with the speed and direction of the TCs motion sector The predictions from the linearized theory are verified in two ways 1) fully nonlinear simulations are shown and 2) comparison is made to the observed upper level ridge trough couplets produced by recurving TCs in the Navy s Operational Global Prediction System (NOGAPS) The implications of this work for the predictability of downstream Impacts from recurving TCs are briefly described
C1 [Hodyss, Daniel; Hendricks, Eric] USN, Res Lab, Monterey, CA 93943 USA.
RP Hodyss, D (reprint author), USN, Res Lab, 7 Grace Hopper Ave,Stop 2, Monterey, CA 93943 USA.
FU NRL [BE-4287-0-0-5]; National Research Council
FX DH thanks Dr S Jones for a useful and encouraging conversation on this
subject The authors thank Dr Michael Riemer for his careful reading and
insightful comments on this manuscript DH gratefully acknowledges
support from the NRL Base Program through BE-4287-0-0-5 This research
was performed while EH held a National Research Council Associateship
Award at the Naval Research Laboratory in Monterey, CA
NR 32
TC 4
Z9 4
U1 2
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD NOV
PY 2010
VL 67
IS 11
BP 3600
EP 3616
DI 10.1175/2010JAS3459.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 686ZI
UT WOS:000284740600010
ER
PT J
AU Bellitto, VJ
Melnik, MI
Sorensen, DN
Chang, JC
AF Bellitto, Victor J.
Melnik, Mikhail I.
Sorensen, Daniel N.
Chang, Joseph C.
TI Predicting the shock sensitivity of cyclotrimethylene-trinitramine
SO JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
LA English
DT Article; Proceedings Paper
CT 37th Annual Conference of the North-American-Thermal-Analysis-Society
CY SEP 20-23, 2009
CL Lubbock, TX
SP N Amer Thermal Anal Soc
DE RDX; HMX; Statistical; DSC; AFM; Surface
ID RDX
AB We studied the surface and thermal properties of seven different varieties of cyclotrimethylene-trinitramine (RDX) crystalline explosives from five manufacturers using differential scanning calorimetry (DSC) and atomic force microscopy (AFM). The specific varieties of the RDX studied were acquired from the previous Reduced Sensitivity RDX Round Robin program. They were chosen because intensive characterization of the materials already existed including shock sensitivity and cyclotetramethylene-tetranitramine (HMX) impurity levels. AFM scans revealed a diversity of surface defects. To quantify the surface defects on the crystalline surface of the RDX particles, surface roughness measurements were acquired. Statistical analysis was undertaken to correlate the observed surface, HMX impurity levels, and DSC thermal curve properties with the known shock sensitivities of the material. It was determined that a statistically significant relationship exists between surface roughness and the shock sensitivity of the material while no relationship was observed between the DSC thermal properties and either surface roughness or shock sensitivity. The HMX content greatly affected the thermal properties of RDX but was uncorrelated with the shock sensitivity.
C1 [Bellitto, Victor J.; Sorensen, Daniel N.; Chang, Joseph C.] Naval Surface Warfare Ctr, Indian Head, MD 20640 USA.
[Melnik, Mikhail I.] Niagara Univ, Dept Commerce, Niagara, NY 14109 USA.
RP Bellitto, VJ (reprint author), Naval Surface Warfare Ctr, 4104 Evans Way,Suite 102, Indian Head, MD 20640 USA.
EM victor.bellitto@navy.mil
NR 13
TC 4
Z9 5
U1 0
U2 3
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1388-6150
J9 J THERM ANAL CALORIM
JI J. Therm. Anal. Calorim.
PD NOV
PY 2010
VL 102
IS 2
BP 557
EP 562
DI 10.1007/s10973-010-0978-3
PG 6
WC Thermodynamics; Chemistry, Analytical; Chemistry, Physical
SC Thermodynamics; Chemistry
GA 666DB
UT WOS:000283090400021
ER
PT J
AU Armstrong, AW
Ulukan, S
Weiner, M
Mostafa, M
Shaheen, H
Nakhla, I
Tribble, DR
Riddle, MS
AF Armstrong, Adam W.
Ulukan, Sefa
Weiner, Matthew
Mostafa, Manal
Shaheen, Hind
Nakhla, Isabelle
Tribble, David R.
Riddle, Mark S.
TI A Randomized, Double-Blind, Placebo-Controlled Study Evaluating the
Efficacy and Safety of Rifaximin for the Prevention of Travelers'
Diarrhea in US Military Personnel Deployed to Incirlik Air Base,
Incirlik, Turkey
SO JOURNAL OF TRAVEL MEDICINE
LA English
DT Article
ID IMPACT
AB Background. Infectious diarrhea is an important problem among travelers and deployed US military overseas causing substantial morbidity due to acute illness and may result in burdensome postinfectious sequelae.
Methods. The nonsystemic antibiotic rifaximin was evaluated for prevention of travelers' diarrhea (TD) in a US military and civilian adult beneficiary population in a randomized, double-blind, placebo-controlled clinical trial. In all, 100 volunteers deployed to Incirlik Air Base, Turkey, received rifaximin 1,100 mg once daily or placebo for 2 weeks, and participants were followed daily for 2 weeks.
Results. In an intention to treat analysis (n = 95), TD (based on subjects meeting case definition or early treatment) developed in 6.3% (3 of 48) of the rifaximin group compared with 19.2% (9 of 47) in the placebo group (Fisher's exact test p = 0.07). Rifaximin provided 67% (95% confidence interval, -13% to 91%, p = 0.07) protection against TD. Rifaximn 1,100 mg once daily was well tolerated with no observed differences in adverse events, whether solicited or unsolicited among the two treatment groups.
Conclusions. Rifaximin may represent an option among military personnel on deployment for prevention of TD with supportive future studies that consider deployment length, settings, and operational situations where widespread use of chemoprophylaxis may increase force health protection without undue risk during critical deployments.
C1 [Riddle, Mark S.] USN, Enter Dis Dept, Med Res Ctr, Silver Spring, MD 20817 USA.
[Armstrong, Adam W.; Weiner, Matthew; Mostafa, Manal; Shaheen, Hind; Nakhla, Isabelle] USN, Med Res Unit 3, Cairo, Egypt.
[Ulukan, Sefa] Incirlik Air Base, Incirlik, Turkey.
[Tribble, David R.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
RP Riddle, MS (reprint author), USN, Enter Dis Dept, Med Res Ctr, Silver Spring, MD 20817 USA.
EM mark.riddle@med.navy.mil
RI Riddle, Mark/A-8029-2011; Valle, Ruben/A-7512-2013
FU Salix Pharmaceuticals; Department of Defense (Fort Detrick, MD, USA)
[6000.RAD1.D.E0301]
FX This study was supported by Salix Pharmaceuticals under a cooperative
research and development agreement, and the Department of Defense
Military Infectious Disease Research Program (Fort Detrick, MD, USA)
under work unit no. 6000.RAD1.D.E0301.
NR 6
TC 8
Z9 8
U1 0
U2 2
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1195-1982
J9 J TRAVEL MED
JI J. Travel Med.
PD NOV-DEC
PY 2010
VL 17
IS 6
BP 392
EP 394
DI 10.1111/j.1708-8305.2010.00462.x
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA 677IN
UT WOS:000283982900006
PM 21050319
ER
PT J
AU Ovtchinnikov, SG
Cooke, SJ
Shtokhamer, R
Vlasov, AN
Mkrtchyan, MM
Kostas, C
Petillo, JJ
Levush, B
AF Ovtchinnikov, Serguei G.
Cooke, Simon J.
Shtokhamer, Roman
Vlasov, Alexander N.
Mkrtchyan, Masis M.
Kostas, Christopher
Petillo, John J.
Levush, Baruch
TI High accuracy electron beam model development in MICHELLE: eBEAM
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID GUN
AB The authors present a new software tool (eBEAM) for high accuracy simulations of electron beams with stochastic space charge effects as a module of the SAIC/NRL MICHELLE particle simulation code. In modeling low current electron beam systems such as in electron beam lithography and electron microscopy, it is necessary to simulate ensembles of individual electrons to account correctly for the statistical effects of interparticle interactions. This article demonstrates the use of CPU/GPU hybrid techniques that run on multiple platforms to accomplish the simulation task within the MICHELLE/eBEAM framework. (C) 2010 American Vacuum Society. [DOI: 10.1116/1.3503899]
C1 [Ovtchinnikov, Serguei G.; Shtokhamer, Roman; Mkrtchyan, Masis M.; Kostas, Christopher; Petillo, John J.] Sci Applicat Int Corp, Billerica, MA 01821 USA.
[Cooke, Simon J.; Vlasov, Alexander N.; Levush, Baruch] USN, Res Lab, Washington, DC 20375 USA.
RP Ovtchinnikov, SG (reprint author), Sci Applicat Int Corp, 700 Technol Pk Dr,Suite 201, Billerica, MA 01821 USA.
EM ovtchinnikov@saic.com
RI Cooke, Simon/A-9530-2010
NR 8
TC 1
Z9 1
U1 0
U2 4
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD NOV
PY 2010
VL 28
IS 6
BP C6J8
EP C6J12
DI 10.1116/1.3503899
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA 690OX
UT WOS:000285015200052
ER
PT J
AU Meegan, J
Field, C
Sidor, I
Romano, T
Casinghino, S
Smith, CR
Kashinsky, L
Fair, PA
Bossart, G
Wells, R
Dunn, JL
AF Meegan, Jenny
Field, Cara
Sidor, Inga
Romano, Tracy
Casinghino, Sandra
Smith, Cynthia R.
Kashinsky, Lizabeth
Fair, Patricia A.
Bossart, Gregory
Wells, Randall
Dunn, J. Lawrence
TI Development, validation, and utilization of a competitive enzyme-linked
immunosorbent assay for the detection of antibodies against Brucella
species in marine mammals
SO JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION
LA English
DT Article
DE Brucella; competitive enzyme-linked; immunosorbent; assay; marine;
mammals; validation
ID BOTTLE-NOSED DOLPHINS; NORTH-ATLANTIC OCEAN; SEALS PHOCA-HISPIDA; BOVINE
BRUCELLOSIS; RINGED SEALS; MOLECULAR CHARACTERIZATION;
TURSIOPS-TRUNCATUS; DNA POLYMORPHISM; SP INFECTION; STRAINS
AB A competitive enzyme-linked immunosorbent assay (cELISA) was developed by using a whole-cell antigen from a marine Brucella sp isolated from a harbor seal (Phoca vitulina) The assay was designed to screen sera from multiple marine mammal species for the presence of antibodies against marine-origin Brucella Based on comparisons with culture confirmed cases specificity and sensitivity for cetacean samples tested were 73% and 100%, respectively For pinniped samples, specificity and sensitivity values were 77% and 67%, respectively Hawaiian monk seal (Monachus schauinslandi, n = 28) and bottlenose dolphin (Turstops truncatus, n = 48) serum samples were tested, and the results were compared with several other assays designed to detect Brucella abortus antibodies The comparison testing revealed the marine-origin cELISA to be more sensitive than the B abortus tests by the detection of additional positive serum samples The newly developed cELISA is an effective serologic method for detection of the presence of antibodies against marine-origin Brucella sp in marine mammals
C1 [Meegan, Jenny; Field, Cara; Sidor, Inga; Romano, Tracy; Casinghino, Sandra; Dunn, J. Lawrence] Mystic Aquarium & Inst Explorat, Mystic, CT USA.
[Kashinsky, Lizabeth] Univ Hawaii, Joint Inst Marine & Atmospher Res, Honolulu, HI 96822 USA.
[Smith, Cynthia R.] USN, Marine Mammal Program, Space & Naval Warfare Syst Ctr, San Diego, CA 92152 USA.
[Fair, Patricia A.] NOAA, Natl Ocean Serv Ctr Coastal Environm Hlth & Biomo, Charleston, SC USA.
[Wells, Randall] Mote Marine Lab, Chicago Zool Soc, Sarasota, FL 34236 USA.
[Bossart, Gregory] Harbor Branch Oceanog Inst Inc, Ft Pierce, FL 34946 USA.
RP Meegan, J (reprint author), Univ Florida, Coll Vet Med, Aquat Anim Hlth Dept, Gainesville, FL 32610 USA.
FU National Oceanic and Atmospheric Association (NOAA) [NA04OAR4600209,
NA03NMF4390408]; Harbor Branch Oceanographic Institution's; Wild
Dolphins license tag; NOAA National Marine Fisheries Service; Dolphin
Quest; Disney's Animal Programs
FX The Brucella Project is funded by National Oceanic and Atmospheric
Association (NOAA) Oceans and Human Health Initiative Grant
NA04OAR4600209 and has received previous support from the NOAA Fisheries
Prescott Grant Award NA03NMF4390408 The wild Hawaiian monk seal blood
samples were collected under Scientific Research and Enhancement Permit
to Take Marine Mammals 848-1335 The wild bottlenose dolphin blood
samples were collected under the National Marine Fisheries Service
Scientific Research permit 522 1569 and 522-1785 issued to Dr Randall
Wells of the Sarasota Dolphin Research Program (SDRP) in Sarasota Bay,
Florida and 998 1678 issued to Dr Greg Bossart as part of the Bottlenose
Dolphin Health and Risk Assessment Project conducted in the Indian River
Lagoon, Florida, and the estuarine waters of Charleston South Carolina
Funding was partially provided by the Harbor Branch Oceanographic
Institution's Project Wild Dolphins license tag, NOAA National Marine
Fisheries Service, Dolphin Quest, and Disney's Animal Programs Brian
Balmer's expertise in preparing and processing samples for the SDRP is
much appreciated The authors also thank John McGiven of the Veterinary
Laboratory Agency (Surrey UK) for supplying the terrestrial Brucella and
Yersinia serum samples This work constitutes scientific contribution 181
from the Sea Research Foundation
NR 39
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U1 0
U2 12
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1040-6387
J9 J VET DIAGN INVEST
JI J. Vet. Diagn. Invest.
PD NOV
PY 2010
VL 22
IS 6
BP 856
EP 862
PG 7
WC Veterinary Sciences
SC Veterinary Sciences
GA 685ZL
UT WOS:000284666500003
PM 21088168
ER
PT J
AU Gaffney, PG
AF Gaffney, Paul G., II
TI Happy Days
SO MARINE TECHNOLOGY SOCIETY JOURNAL
LA English
DT Editorial Material
C1 [Gaffney, Paul G., II] Monmouth Univ, Chair ORRAP, Long Branch, NJ 07764 USA.
[Gaffney, Paul G., II] USN, Stennis Space Ctr, MS USA.
RP Gaffney, PG (reprint author), Monmouth Univ, Chair ORRAP, Long Branch, NJ 07764 USA.
EM president@monmouth.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU MARINE TECHNOLOGY SOC INC
PI COLUMBIA
PA 5565 STERRETT PLACE, STE 108, COLUMBIA, MD 21044 USA
SN 0025-3324
J9 MAR TECHNOL SOC J
JI Mar. Technol. Soc. J.
PD NOV-DEC
PY 2010
VL 44
IS 6
BP 10
EP 12
PG 3
WC Engineering, Ocean; Oceanography
SC Engineering; Oceanography
GA 712FG
UT WOS:000286649500003
ER
PT J
AU Xue, L
Mock, W
Belytschko, T
AF Xue, Liang
Mock, Willis, Jr.
Belytschko, Ted
TI Penetration of DH-36 steel plates with and without polyurea coating
SO MECHANICS OF MATERIALS
LA English
DT Article
DE Structural impact; Ductile fracture; Ballistic penetration; Damage
plasticity model; Composite plates
ID BALLISTIC RESISTANCE; FRACTURE INITIATION; DUCTILE FRACTURE; STRAIN
RATES; PROJECTILES; PERFORATION; BEHAVIOR; TARGETS; IMPACT
AB Numerical and experimental studies on the impact and penetration of armor plates subjected to sub-ordnance range impact velocities by pointed and flat strikers is presented. Three target scenarios are considered: (1) a blank (unbacked) steel plate; (2) the same steel plate backed by a thick layer of polyurea; and (3) two identical steel plates of half the original thickness placed on both sides of the polyurea layer. For the blank plate, two fracture mechanisms of the steel plate - shear plugging and petalling of the plates - are observed in the simulation. For the same plate with a thick polyurea coating at the back side, it is found that the polyurea coating provides additional resistance in terms of energy absorption through two mechanisms: (1) the increase in the energy dissipated by the steel plate and (2) increased energy stored in the polyurea itself. For the sandwich configuration of the target plate, where the polyurea layer is placed between two steel plates, no advantage in terms of penetration resistance is found. These numerical results agree with experimental observations on the failure modes and exit velocities. (c) 2010 Published by Elsevier Ltd.
C1 [Xue, Liang; Belytschko, Ted] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA.
[Mock, Willis, Jr.] USN, Ctr Surface Warfare, Dahlgren, VA 22448 USA.
RP Belytschko, T (reprint author), Northwestern Univ, Dept Mech Engn, 2145 Sheridan Rd, Evanston, IL 60208 USA.
EM tedbelytschko@northwestern.edu
RI Belytschko, Ted/B-6710-2009; Xue, Liang/A-1266-2007
OI Xue, Liang/0000-0003-0468-0624
FU Ships and Engineering Systems Div. of the Office of Naval Research
[N00014-06-1-0505]
FX This work is supported by the Ships and Engineering Systems Div. of the
Office of Naval Research (Grant N00014-06-1-0505) to Northwestern
University through Dr. Roshdy Barsoum.
NR 34
TC 35
Z9 36
U1 3
U2 23
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-6636
J9 MECH MATER
JI Mech. Mater.
PD NOV
PY 2010
VL 42
IS 11
BP 981
EP 1003
DI 10.1016/j.mechmat.2010.08.004
PG 23
WC Materials Science, Multidisciplinary; Mechanics
SC Materials Science; Mechanics
GA 685XA
UT WOS:000284660200003
ER
PT J
AU Stroup, SP
Garvin, AN
Irby, J
Stroup, KK
L'Esperance, JO
Auge, BK
AF Stroup, Sean P.
Garvin, Angelina N.
Irby, John
Stroup, Kelly K.
L'Esperance, James O.
Auge, Brian K.
TI Practice Patterns of Primary Care Providers and Urologists for Use of
Medical Expulsion Therapy
SO MILITARY MEDICINE
LA English
DT Article
ID DISTAL URETER STONES; TAMSULOSIN; NIFEDIPINE; MANAGEMENT; FACILITATE;
EFFICACY; PASSAGE; TRIAL
AB Purpose: alpha-blockers and calcium channel blockers have shown promise for medical expulsion therapy (MET) of distal ureteral calculi <1 cm in size. Although MET has been discussed in urology for some time, little has been written about MET in the emergency medicine and primary care literature. We sought to evaluate current practice patterns of MET among urologists, emergency medicine physicians, other primary care providers, and frontline military care providers. Methods: Web-based, self-developed survey to assess the current practice patterns of providers for the initial management of uncomplicated ureteral calculi, and specifically, their frequency of using MET. Cross-tabulation strategies utilizing compiled survey results were used to assess survey outcomes and determine prevalence values for understanding, familiarity, and therapeutic interventions for nephrolithiasis. Results: Of 293 medical professionals, 114 (39%) were urologists, 55 (48%) of which were fellowship trained in endourology. Fifty-six (19%) were emergency medicine physicians, 22(8%) were family practitioners, and 19(7%) were internists and other primary care physicians. Other physician subspecialists and medical paraprofessionals comprised the remaining 34%. Overall 27% of respondents were unfamiliar with MET for expulsion of uncomplicated ureteral stones, including 13% of staff physicians, 21% of emergency medicine doctors, 56% of family practitioners, 40% of internists, and 43% of other primary care providers. The overall prevalence of use of MET was 45%. All urologists were familiar with MET, but 31% rarely, never, or only sometimes used this therapy. Specifically, urologists, emergency physicians, family practitioners, internists, and other providers, usually or always used MET 69%, 55%, 16%, 16%, and 27%, of the time, respectively. In academic institutions, 71.6% use MET usually or almost always compared to 36% in military healthcare settings and 47% in other practice settings. Tamsulosin is the most widely used medication for MET, accounting for 57% of MET use. Factors identified that inhibit more widespread use of MET include, physician unfamiliarity with MET (72%), the belief that MET is not effective (10%), patient unwillingness to undergo MET (5%), and medications not covered by insurance plans (4%). Conclusion: While MET has been established as a reasonable adjunct for management of uncomplicated ureteral stones, it may be underutilized due to physician unfamiliarity with this type of treatment and perceived ineffectiveness. This therapy may be of particular benefit to forward deployed forces. Education programs and practice-specific guidelines to target this audience may help to improve the dispersion of MET into the medical community.
C1 [Stroup, Sean P.] Univ Calif San Diego, Div Urol, San Diego, CA 92103 USA.
[Stroup, Sean P.; Garvin, Angelina N.; Irby, John; Stroup, Kelly K.; L'Esperance, James O.; Auge, Brian K.] USN, San Diego Med Ctr, San Diego, CA 92134 USA.
[L'Esperance, James O.; Auge, Brian K.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Stroup, SP (reprint author), Univ Calif San Diego, Div Urol, 200 W Arbor Dr 8897, San Diego, CA 92103 USA.
FU Office of Naval Research, Alexandria, Virginia
FX Funding was provided through a grant from the Office of Naval Research,
Alexandria, Virginia.
NR 11
TC 1
Z9 1
U1 0
U2 2
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD NOV
PY 2010
VL 175
IS 11
BP 883
EP 889
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA 679TK
UT WOS:000284183500013
PM 21121500
ER
PT J
AU Simecek, JW
Diefenderfer, KE
AF Simecek, John W.
Diefenderfer, Kim E.
TI An Evaluation of U.S. Navy Dental Corps Classification Guidelines
SO MILITARY MEDICINE
LA English
DT Article
ID PERSONNEL; EMERGENCIES
AB Objectives: The aims of this research were to evaluate the effectiveness of two different sets of dental classification guidelines to differentiate dental emergency (DE) rates between deployable and nondeployable personnel. Methods: A retrospective study of the dental records of two cohorts of Marine Corps recruits examined and treated using different classification guidelines was completed. Results: Both classification systems showed significant differences between DE rates of nondeployable and deployable personnel. No statistical difference was observed when comparing the adjusted HRs of the two cohorts. Conclusions: Results of this study suggest that both guidelines are able to distinguish between deployable and nondeployable personnel and give reasonable assurance that class 1 and 2 patients will not experience a DE for a 6-month period. Incorporating factors such as caries risk, number of missing and filled teeth, and number of third molars may improve the ability of the dental classification systems in predicting DE.
C1 [Simecek, John W.] USN, Med Res Unit San Antonio, Brooks City Base, TX 78235 USA.
[Diefenderfer, Kim E.] USN, Hlth Clin, Fisher Healthcare Clin, Great Lakes, IL 60088 USA.
RP Simecek, JW (reprint author), USN, Med Res Unit San Antonio, 8315 Navy Rd, Brooks City Base, TX 78235 USA.
FU Bureau of Medicine and Surgery [N3239806RCG4001]
FX Funding was provided by the Bureau of Medicine and Surgery award no.
N3239806RCG4001.
NR 19
TC 3
Z9 3
U1 0
U2 0
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD NOV
PY 2010
VL 175
IS 11
BP 895
EP 900
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA 679TK
UT WOS:000284183500015
PM 21121502
ER
PT J
AU Gelaro, R
Langland, RH
Pellerin, S
Todling, R
AF Gelaro, Ronald
Langland, Rolf H.
Pellerin, Simon
Todling, Ricardo
TI The THORPEX Observation Impact Intercomparison Experiment
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID VARIATIONAL DATA ASSIMILATION; OBSERVING SYSTEM EXPERIMENTS; ADJOINT;
SENSITIVITY; FORECAST; ATLANTIC
AB An experiment is being conducted to directly compare the impact of all assimilated observations on short-range forecast errors in different forecast systems using an adjoint-based technique The technique allows detailed comparison of observation impacts in terms of data type, location, satellite sounding channel, or other relevant attributes This paper describes results for a "baseline" set of observations assimilated by three forecast systems for the month of January 2007 Despite differences in the assimilation algorithms and forecast models, the impacts of the major observation types are similar in each forecast system in a global sense However, regional details and other aspects of the results can differ substantially Large forecast error reductions are provided by satellite radiances geostationary satellite winds, radiosondes, and commercial aircraft Other observation types provide smaller impacts individually, but their combined impact is significant Only a small majority of the total number of observations assimilated actually improves the forecast, and most of the improvement comes from a large number of observations that have relatively small individual Impacts Accounting for this behavior may be especially important when considering strategies for deploying adaptive (or "targeted") components of the observing system
C1 [Gelaro, Ronald; Todling, Ricardo] NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA.
[Langland, Rolf H.] USN, Res Lab, Monterey, CA USA.
[Pellerin, Simon] Environm Canada, Dorval, PQ, Canada.
RP Gelaro, R (reprint author), NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA.
FU NASA [MAP/04-0000-0080]; Naval Research Laboratory and the Office of
Naval Research [BE-43 5-037]
FX The design of the baseline experiment benefitted from discussions with
Pierre Gauthier of Universite du Quebec, Montreal, Carla Cardinali of
ECMWF, Stephane Laroche of Environment Canada, and Florence Rabier of
Meteo-France The authors thank Yannick Tremolet of ECMWF for his work in
developing the adjoint of the GSI analysis scheme used in GEOS-5, and
Judy St-James and Monique Tanguay of Environment Canada for their help
in developing the GDPS and conducting experiments We thank Ron Errico of
GMAO for many hours of insightful discussions about the work We thank
Carla Cardinali and two anonymous reviewers for their comments and
suggestions that improved the paper significantly This work was
supported by the NASA Modeling, Analysis and Prediction program
(MAP/04-0000-0080) and by the Naval Research Laboratory and the Office
of Naval Research, under Program Element 0602435N, Project Number BE-43
5-037
NR 24
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U1 0
U2 6
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD NOV
PY 2010
VL 138
IS 11
BP 4009
EP 4025
DI 10.1175/2010MWR3393.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 690WG
UT WOS:000285039700001
ER
PT J
AU Zeng, B
Mu, G
Luo, HQ
Xiang, T
Mazin, II
Yang, H
Shan, L
Ren, C
Dai, PC
Wen, HH
AF Zeng, B.
Mu, G.
Luo, H. Q.
Xiang, T.
Mazin, I. I.
Yang, H.
Shan, L.
Ren, C.
Dai, P. C.
Wen, H. -H.
TI Anisotropic structure of the order parameter in FeSe0.45Te0.55 revealed
by angle-resolved specific heat
SO NATURE COMMUNICATIONS
LA English
DT Article
ID D-WAVE SUPERCONDUCTORS; VORTEX STATE
AB The central issues for understanding iron (Fe)-based superconductors are the symmetry and structure of the superconducting gap. So far the experimental data and theoretical models have been highly controversial. Some experiments favor two or more constant or nearly constant gaps, others indicate strong anisotropy and yet others suggest gap zeros ('nodes'). A unique method for addressing this issue, and one of very few methods that are bulk and angle resolved, is measuring the electronic-specific heat in a rotating magnetic field. In this study, we present the first such measurement for an Fe-based high-T-c superconductor. We observed a fourfold oscillation of the specific heat as a function of the in-plane magnetic field direction. Our results are consistent with the expectations for an extended s-wave model, with a significant gap anisotropy on the electron pockets and the gap minima along the Gamma M (Fe-Fe bond) direction.
C1 [Zeng, B.; Mu, G.; Luo, H. Q.; Xiang, T.; Yang, H.; Shan, L.; Ren, C.; Dai, P. C.; Wen, H. -H.] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China.
[Zeng, B.; Mu, G.; Luo, H. Q.; Xiang, T.; Yang, H.; Shan, L.; Ren, C.; Dai, P. C.; Wen, H. -H.] Chinese Acad Sci, Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
[Mazin, I. I.] USN, Code 6391, Res Lab, Washington, DC 20375 USA.
[Yang, H.; Wen, H. -H.] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China.
[Yang, H.; Wen, H. -H.] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
[Dai, P. C.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Dai, P. C.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA.
RP Wen, HH (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China.
EM hhwen@aphy.iphy.ac.cn
RI Mu, Gang/G-9407-2011; Dai, Pengcheng /C-9171-2012; Luo,
Huiqian/F-4049-2012; Zeng, Bin/O-3370-2013
OI Mu, Gang/0000-0001-5676-4702; Dai, Pengcheng /0000-0002-6088-3170; Zeng,
Bin/0000-0002-0090-4371
FU Natural Science Foundation of China; Ministry of Science and Technology
of China [2011CB605900, 2006CB921802]; Chinese Academy of Sciences;
Office of the Naval Research; US DOE, BES, through DOE
[DE-FG02-05ER46202]; Division of Scientific User Facilities
FX We thank A. Chubukov, P. Hirschfeld, K. Kuroki, D. H. Lee, Y. Matsuda,
T. Shibauchi, I. Vekhter and F. Wang for valuable discussions. This work
was supported by the Natural Science Foundation of China, the Ministry
of Science and Technology of China (973 Projects No. 2011CB605900, No.
2006CB921802), and Chinese Academy of Sciences (Project ITSNEM). I. I.
M. was supported by the Office of the Naval Research. P. C. D. was
supported by the US DOE, BES, through DOE DE-FG02-05ER46202 and Division
of Scientific User Facilities.
NR 47
TC 56
Z9 56
U1 1
U2 38
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD NOV
PY 2010
VL 1
AR 112
DI 10.1038/ncomms1115
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 732YE
UT WOS:000288224800010
ER
PT J
AU Bewley, W
Canedy, C
Kim, CS
Kim, M
Lindle, JR
Abell, J
Vurgaftman, I
Meyer, J
AF Bewley, William
Canedy, Chadwick
Kim, Chul Soo
Kim, Mijin
Lindle, J. Ryan
Abell, Joshua
Vurgaftman, Igor
Meyer, Jerry
TI Ridge-width dependence of midinfrared interband cascade laser
characteristics
SO OPTICAL ENGINEERING
LA English
DT Article
DE midinfrared semiconductor lasers; interband cascade laser; laser mode
control; ridge waveguide
ID QUANTUM-WELL LASERS; HIGH-POWER; NARROW-RIDGE
AB We report an experimental study of how the light-current characteristics and lateral mode properties of interband cascade lasers depend on ridge width. Narrower ridges provide greater heat dissipation due to lateral flow, along with operation in a single lateral mode. However, sidewall imperfections increase the cw threshold current density somewhat, from J(th) = 582 A/cm(2) at 300 K for an 11-mu m-wide ridge to 713 A/cm(2) and 1.07 kA/cm(2) for 5- and 3-mu m-wide ridges, respectively. The narrowest ridges similarly display a degradation of the slope efficiency. A 13-mu m-wide ridge produced 45 mW per facet of cw output power and maximum wall-plug efficiency of 3.5% per facet at T = 20 degrees C. A 5-mu m-wide ridge with 3-mm cavity length and no facet coatings operated cw at lambda = 3.5-mu m to a new record temperature of 345 K for the 3 to 4-mu m spectral range. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3498772]
C1 [Bewley, William; Canedy, Chadwick; Kim, Chul Soo; Kim, Mijin; Lindle, J. Ryan; Abell, Joshua; Vurgaftman, Igor; Meyer, Jerry] USN, Res Lab, Washington, DC 20375 USA.
RP Bewley, W (reprint author), USN, Res Lab, Code 5613,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM igor.vurgaftman@nrl.navy.mil
NR 19
TC 25
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U1 1
U2 3
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2010
VL 49
IS 11
AR 111116
DI 10.1117/1.3498772
PG 5
WC Optics
SC Optics
GA 690IJ
UT WOS:000284996200019
ER
PT J
AU Botez, D
Shin, JC
Kumar, S
Mawst, LJ
Vurgaftman, I
Meyer, JR
AF Botez, Dan
Shin, Jae Cheol
Kumar, Sushil
Mawst, Luke J.
Vurgaftman, Igor
Meyer, Jerry R.
TI Electron leakage and its suppression via deep-well structures in 4.5-to
5.0-mu m-emitting quantum cascade lasers
SO OPTICAL ENGINEERING
LA English
DT Article
DE quantum cascade lasers; mid infrared; threshold-current characteristic
temperature; slope-efficiency characteristic temperature; electron
leakage current; hot electrons
ID CONTINUOUS-WAVE OPERATION; MU-M; ROOM-TEMPERATURE; PERFORMANCE; LIGHT
AB The equations for threshold-current density J(th) and external differential quantum efficiency eta(d) of quantum cascade lasers (QCLs) are modified to include electron leakage and the electron-backfilling term corrected to take into account hot electrons in the injector. We show that by introducing both deep quantum wells and tall barriers in the active regions of 4.8-mu m-emitting QCLs, and by tapering the conduction-band edge of both injector and extractor regions, one can significantly reduce electron leakage. The characteristic temperatures for J(th) and eta(d), denoted by T(0) and T(1), respectively, are found to reach values as high as 278 and 285 K over the 20 to 90 degrees C temperature range, which means that J(th) and eta(d) display approximate to 2.3 slower variation than conventional 4.5- to 5.0-mu m-emitting, high-performance QCLs over the same temperature range. A model for the thermal excitation of hot injected electrons from the upper laser level to the upper active-region energy states, wherefrom some relax to the lower active-region states and some are scattered to the upper miniband, is used to estimate the leakage current. Estimated T(0) values are in good agreement with experiment for both conventional QCLs and deep-well QCLs. The T(1) values are justified by increases in both electron leakage and waveguide loss with temperature. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3509368]
C1 [Botez, Dan; Shin, Jae Cheol; Mawst, Luke J.] Univ Wisconsin Madison, Dept Elect & Comp Engn, Madison, WI 53706 USA.
[Kumar, Sushil] Lehigh Univ, Dept Elect & Comp Engn, Bethlehem, PA 18015 USA.
[Vurgaftman, Igor] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Botez, D (reprint author), Univ Wisconsin Madison, Dept Elect & Comp Engn, Madison, WI 53706 USA.
EM botez@engr.wisc.edu
FU National Science Foundation [ECCS-0925104]
FX This work was supported in part by the National Science Foundation under
grant ECCS-0925104. The authors are grateful to Jerome Faist for
valuable technical discussions.
NR 34
TC 13
Z9 13
U1 0
U2 7
PU SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2010
VL 49
IS 11
AR 111108
DI 10.1117/1.3509368
PG 9
WC Optics
SC Optics
GA 690IJ
UT WOS:000284996200011
ER
PT J
AU Meyer, J
Vurgaftman, I
AF Meyer, Jerry
Vurgaftman, Igor
TI Quantum and Interband Cascade Lasers
SO OPTICAL ENGINEERING
LA English
DT Editorial Material
C1 [Meyer, Jerry; Vurgaftman, Igor] USN, Res Lab, Washington, DC 20375 USA.
RP Meyer, J (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jerry.meyer@nrl.navy.mil; igor.vurgaftman@nrl.navy.mil
NR 0
TC 3
Z9 3
U1 1
U2 2
PU SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2010
VL 49
IS 11
AR 111101
DI 10.1117/1.3512992
PG 2
WC Optics
SC Optics
GA 690IJ
UT WOS:000284996200004
ER
PT J
AU Nichols, JM
Waterman, JR
Menon, R
Devitt, J
AF Nichols, Jonathan M.
Waterman, James R.
Menon, Raghu
Devitt, John
TI Modeling and analysis of a high-performance midwave infrared panoramic
periscope
SO OPTICAL ENGINEERING
LA English
DT Article
DE midwave infrared sensor; panoramic imager; periscope; high resolution
AB A high-resolution midwave infrared panoramic periscope sensor system has been developed. The sensor includes an f/2.5 catadioptric optical system that provides a field of view with 360-deg horizontal azimuth and -10- to +30-deg elevation without requiring moving components (e. g., rotating mirrors). The focal plane is a 2048x2048, 15-mu m-pitch InSb detector operating at 80 K. An onboard thermoelectric reference source allows for real-time nonuniformity correction using the two-point correction method. The entire system (detector-Dewar assembly, cooler, electronics, and optics) is packaged to fit in an 8-in.-high, 6.5-in.-diameter volume. This work describes both the system optics and the electronics and presents sample imagery. We model both the sensor's radiometric performance, quantified by the noise-equivalent temperature difference, and its resolution performance. Model predictions are then compared with estimates obtained from experimental data. The ability of the system to resolve targets as a function of imaged spatial frequency is also presented. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3505866]
C1 [Nichols, Jonathan M.; Waterman, James R.] USN, Res Lab, Washington, DC 20375 USA.
[Menon, Raghu] RemoteReality Inc, Westborough, MA 01581 USA.
[Devitt, John] L3 Cincinnati Elect, Mason, OH USA.
RP Nichols, JM (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
FU Office of Naval Research
FX The authors would like to acknowledge the support of the Office of Naval
Research for this work under the Future Naval Capabilities, Situational
Panoramic Infrared System program.
NR 13
TC 6
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U1 1
U2 8
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
EI 1560-2303
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2010
VL 49
IS 11
AR 113202
DI 10.1117/1.3505866
PG 9
WC Optics
SC Optics
GA 690IJ
UT WOS:000284996200031
ER
PT J
AU Schechter, RS
Chun, ST
AF Schechter, Richard S.
Chun, Sung-Taek
TI High-resolution 3-D imaging of objects through walls
SO OPTICAL ENGINEERING
LA English
DT Article
DE through-the-wall imaging; radar; finite-difference time domain
AB This paper describes the use of microwaves to accurately image objects behind dielectric walls. The data are first simulated by using a finite-difference time-domain code. A large model of a room with walls and objects inside is used as a test case. Since the model and associated volume are big compared to wavelengths, the code is run on a parallel supercomputer. A fixed 2-D receiver array captures all the return data simultaneously. A time-domain backprojection algorithm with a correction for the time delay and refraction caused by the front wall then reconstructs high-fidelity 3-D images. A rigorous refraction correction using Snell's law and a simpler but faster linear correction are compared in both 2-D and 3-D. It is shown that imaging in 3-D and viewing an image in the plane parallel to the receiver array is necessary to identify objects by shape. It is also shown that a simple linear correction for the wall is sufficient. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3509364]
C1 [Schechter, Richard S.; Chun, Sung-Taek] USN, Res Lab, Washington, DC 20375 USA.
RP Schechter, RS (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Richard.Schechter@nrl.navy.mil
NR 6
TC 0
Z9 0
U1 1
U2 3
PU SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 0091-3286
J9 OPT ENG
JI Opt. Eng.
PD NOV
PY 2010
VL 49
IS 11
AR 113204
DI 10.1117/1.3509364
PG 7
WC Optics
SC Optics
GA 690IJ
UT WOS:000284996200033
ER
PT J
AU Aaron, MT
Applegate, RA
Porter, J
Thibos, LN
Schallhorn, SC
Brunstetter, TJ
Tanzer, DJ
AF Aaron, Michelle T.
Applegate, Raymond A.
Porter, Jason
Thibos, Larry N.
Schallhorn, Steve C.
Brunstetter, Tyson J.
Tanzer, David J.
TI Why Preoperative Acuity Predicts Postoperative Acuity in
Wavefront-Guided LASIK
SO OPTOMETRY AND VISION SCIENCE
LA English
DT Article
DE LASIK; preoperative acuity; regression to the mean
ID VISUAL-ACUITY; REGRESSION
AB Purpose. To critically evaluate the following clinical wisdom regarding custom (wavefront-guided) laser in situ keratomileusis (LASIK) that subjects with better-than-average best-corrected visual acuity (BCVA) before surgery have a greater risk of losing BCVA postoperatively than do subjects with worse-than-average BCVA before surgery.
Methods. High contrast BCVA was measured once before and 3 months after custom LASIK in one eye of 79 subjects. Preoperative spherical equivalent refractive error ranged between -1.00 and -10.38 D. The sample was divided into one of two subsamples: eyes that had better-than-average preoperative BCVA (<-0.11 logMAR) and eyes that had average or worse-than-average preoperative BCVA (>=-0.11 logMAR). Controls were implemented for retinal magnification and for the statistical phenomenon of regression to the mean of the preoperative acuity measurement.
Results. On average, for the entire sample, moving the correction from the spectacle plane to the corneal plane increased letter acuity 4.7% (1 letter, 0.02 logMAR). For each subsample, the percentage regression to the mean was 57.24%. After correcting for magnification effects and regression to the mean, eyes with better-than-average preoperative acuity had a small but significant gain in acuity (similar to 1 letter, p = 0.040) that was nearly identical to the gain for eyes with worse-than-average preoperative acuity (similar to 1.5 letters, p = 0.002).
Conclusions. Custom LASIK produced a statistically significant gain in visual acuity after correction for magnification effects. Dividing the sample into two subsamples based on preoperative acuity confirmed the common clinical observation that eyes with better-than-average acuity tend to remain the same or lose acuity, whereas eyes with worse-than-average acuity tend to gain acuity. However, when only one acuity measurement is taken at a single time point and the sample is subsampled nonrandomly, this clinical observation is due to a statistical artifact (regression to the mean) and is not attributable to the surgery. (Optom Vis Sci 2010;87:861-866)
C1 [Aaron, Michelle T.] USAF, Sch Aerosp Med, San Antonio, TX USA.
[Applegate, Raymond A.; Porter, Jason] Univ Houston, Coll Optometry, Visual Opt Inst, Houston, TX 77004 USA.
[Thibos, Larry N.] Indiana Univ, Sch Optometry, Bloomington, IN USA.
[Schallhorn, Steve C.] Opt Express, San Diego, CA USA.
[Brunstetter, Tyson J.; Tanzer, David J.] USN, Navy Refract Surg Ctr, San Diego, CA 92152 USA.
RP Aaron, MT (reprint author), USAF, Sch Aerosp Med, 2507 Kennedy Circle, Brooks City Base, TX 78235 USA.
EM michkoe7@yahoo.com
FU National Eye Institute, National Institutes of Health, Department of
Health and Human Services, Bethesda, MD [R01 EY08520, R01 EY019105];
University of Houston, College of Optometry Core [P30 EY07551]; Borish
Endowment
FX We thank the members of the Navy and Marine Corps and their families who
volunteered to participate in our research. We also thank Dr. Harold
Bedell for statistical advice and reading/commenting on the manuscript,
and Dr. Ying Sheng Hu for confirming the regression to the mean
calculations. This work was supported by the United States Air Force,
Air Force Institute of Technology Scholarship (to MTA). This work was
also supported by grants from the National Eye Institute, National
Institutes of Health, Department of Health and Human Services, Bethesda,
MD (R01 EY08520 and R01 EY019105; to RAA), University of Houston,
College of Optometry Core grant P30 EY07551, and the Borish Endowment
funding for the Chair of Optometry (to RAA).
NR 9
TC 2
Z9 2
U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1040-5488
J9 OPTOMETRY VISION SCI
JI Optom. Vis. Sci.
PD NOV
PY 2010
VL 87
IS 11
BP 861
EP 866
DI 10.1097/OPX.0b013e3181f6fb49
PG 6
WC Ophthalmology
SC Ophthalmology
GA 674KQ
UT WOS:000283741800009
PM 20871471
ER
PT J
AU Masterson, DM
AF Masterson, Daniel M.
TI A Tragedy of Democracy in North America
SO PACIFIC HISTORICAL REVIEW
LA English
DT Book Review
C1 [Masterson, Daniel M.] USN Acad, Annapolis, MD 21402 USA.
RP Masterson, DM (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV CALIFORNIA PRESS
PI BERKELEY
PA C/O JOURNALS & DIGITAL PUBLISHING DIVISION, 2000 CENTER ST, STE 303,
BERKELEY, CA 94704-1223 USA
SN 0030-8684
J9 PAC HIST REV
JI Pac. Hist. Rev.
PD NOV
PY 2010
VL 79
IS 4
BP 666
EP U287
PG 3
WC History
SC History
GA 671GF
UT WOS:000283487800023
ER
PT J
AU Vardanyan, M
Melemedjian, OK
Price, TJ
Ossipov, MH
Lai, J
Roberts, E
Boos, TL
Deschamps, JR
Jacobson, AE
Rice, KC
Porreca, F
AF Vardanyan, Marina
Melemedjian, Ohannes K.
Price, Theodore J.
Ossipov, Michael H.
Lai, Josephine
Roberts, Ed
Boos, Terrence L.
Deschamps, Jeffrey R.
Jacobson, Arthur E.
Rice, Kenner C.
Porreca, Frank
TI Reversal of pancreatitis-induced pain by an orally available, small
molecule interleukin-6 receptor antagonist
SO PAIN
LA English
DT Article
DE Pancreatitis; Pain; Mechanisms; Interleukin-6
ID PERIPHERAL-NERVE INJURY; RHEUMATOID-ARTHRITIS; CAPSAICIN RECEPTOR;
NEUROPATHIC PAIN; DOUBLE-BLIND; CHAN SU; IL-6; RATS; NEURONS; CANCER
AB Pancreatic pain resulting from chronic inflammation of the pancreas is often intractable and clinically difficult to manage with available analgesics reflecting the need for more effective therapies. The mechanisms underlying pancreatitis pain are not well understood. Here, the possibility that interleukin-6 (IL-6) may promote pancreatitis pain was investigated with TB-2-081 (3-O-formyl-20R,21-epoxyresibufogenin, EBRF), a small molecule IL-6 receptor antagonist that was semi-synthetically derived from natural sources. The potential activity and mechanism of TB-2-081 were investigated following the induction of persistent pancreatitis using dibutyltin dichloride (DBTC) in rats. TB-2-081 displaces the binding of IL-6 to the human recombinant soluble IL-6 receptor with apparent high affinity and inhibits IL-6 mediated cell growth. Systemic or oral, but not intrathecal, administration of TB-2-081 reversed DBTC-induced abdominal hypersensitivity in a dose-and time-dependent manner. IL-6 levels were significantly up-regulated in the dorsal root ganglia (DRG) of rats with pancreatitis on day 6 after DBTC injection. IL-6-enhanced capsaicin-evoked release of calcitonin gene-related peptide from cultured DRG neurons was blocked by TB-2-081. Our data demonstrate that TB-2-081 acts as a systemically available and orally active small molecule IL-6 receptor antagonist. TB-2-081 effectively reduces pancreatitis-induced pain through peripheral mechanisms that are likely due to (a) increased expression of IL-6 in the DRG and (b) IL-6-mediated sensitization of nociceptive neurons. The activity of TB-2-081 implicates an important role for IL-6 in sustaining pancreatitis pain. Strategies targeting IL-6 actions through small molecule antagonists may offer novel approaches to improve the therapy of chronic pancreatitis and other chronic pain states. (C) 2010 International Association for the Study of Pain. Published by Elsevier B. V. All rights reserved.
C1 [Vardanyan, Marina; Melemedjian, Ohannes K.; Price, Theodore J.; Ossipov, Michael H.; Lai, Josephine; Porreca, Frank] Univ Arizona, Dept Pharmacol, Coll Med, Tucson, AZ 85724 USA.
[Roberts, Ed] Scripps Res Inst, La Jolla, CA 92037 USA.
[Boos, Terrence L.; Jacobson, Arthur E.; Rice, Kenner C.] NIAAA, Drug Design & Synth Sect, Chem Biol Res Branch, NIDA,NIH, Bethesda, MD 20892 USA.
[Deschamps, Jeffrey R.] USN, Struct Matter Lab, Res Lab, Washington, DC 20375 USA.
RP Porreca, F (reprint author), Univ Arizona, Dept Pharmacol, Coll Med, Tucson, AZ 85724 USA.
EM frankp@email.arizona.edu
RI Price, Theodore/A-5094-2010;
OI Deschamps, Jeffrey/0000-0001-5845-0010; Price,
Theodore/0000-0002-6971-6221
FU National Institute on Drug Abuse (NIDA) [Y1-DA6002]; National Institute
on Alcohol Abuse and Alcoholism; NIH [NS065926, DA023513]
FX The research of the Drug Design and Synthesis Section, CBRB, NIDA &
NIAAA, was supported by the NIH Intramural Research Programs of the
National Institute on Drug Abuse (NIDA) and the National Institute on
Alcohol Abuse and Alcoholism. We thank NIDA for support of the X-ray
crystallographic studies (NIDA Contract Y1-DA6002). This work was also
funded by NIH Grants NS065926 and DA023513.
NR 44
TC 20
Z9 22
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-3959
J9 PAIN
JI Pain
PD NOV
PY 2010
VL 151
IS 2
BP 257
EP 265
DI 10.1016/j.pain.2010.05.022
PG 9
WC Anesthesiology; Clinical Neurology; Neurosciences
SC Anesthesiology; Neurosciences & Neurology
GA 662QJ
UT WOS:000282826100009
PM 20599324
ER
PT J
AU Adkins, RM
Somes, G
Morrison, JC
Hill, JB
Watson, EM
Magann, EF
Krushkal, J
AF Adkins, Ronald M.
Somes, Grant
Morrison, John C.
Hill, James B.
Watson, Erin M.
Magann, Everett F.
Krushkal, Julia
TI Association of Birth Weight With Polymorphisms in the IGF2, H19, and
IGF2R Genes
SO PEDIATRIC RESEARCH
LA English
DT Article
ID FOR-GESTATIONAL-AGE; BECKWITH-WIEDEMANN-SYNDROME; BODY-MASS INDEX;
FETAL-GROWTH; QUANTITATIVE TRAIT; RECEPTOR GENE; REGION; VARIANTS; SIZE;
METHYLATION
AB There is a substantial genetic component for birth weight variation. We tested 18 single nucleotide polymorphisms (SNPs) in the IGF2, H19, and IGF2R genes for associations with birth weight variation in 342 mother-newborn pairs (birth weight 2.1-4.7 kg at term) and 527 parent-newborn trios (birth weight 2.1-5.1 kg) across three localities. SNPs in the IGF2R (rs8191754; maternal genotype), IGF2 (rs3741205; newborn genotype), and 5' region of the H19 (rs2067051, rs2251375, and rs4929984) genes were associated with birth weight. Detailed analyses to distinguish direct maternal, direct newborn, and parent of origin effects for the most strongly associated H19 SNP (rs4929984) determined that the association of maternal genotype with newborn birth weight was due to parent of origin effects not direct maternal effects. That SNP is located near the CTCF binding sites that influence expression of the maternally imprinted IGF2 and paternally imprinted H19 locus, and there are statistically significant and independent opposite effects of the same rs4929984 allele, depending on the parent from which it was inherited. (Pediatr Res 68: 429-434, 2010)
C1 [Adkins, Ronald M.] Univ Tennessee, Dept Pediat, Hlth Sci Ctr, Memphis, TN 38103 USA.
[Somes, Grant; Krushkal, Julia] Univ Tennessee, Dept Prevent Med, Hlth Sci Ctr, Memphis, TN 38103 USA.
[Morrison, John C.] Univ Mississippi, Med Ctr, Dept Obstet & Gynecol, Jackson, MS 39216 USA.
[Hill, James B.; Watson, Erin M.; Magann, Everett F.] Naval Med Ctr Portsmouth, Dept Obstet & Gynecol, Portsmouth, VA 23708 USA.
RP Adkins, RM (reprint author), Univ Tennessee, Dept Pediat, Hlth Sci Ctr, 308 W Patient Tower,50 N Dunlap, Memphis, TN 38103 USA.
EM radkins1@uthsc.edu
FU US National Institute of Child Health and Human Development [HD055462];
Children's Foundation Research Center of Memphis; University of
Tennessee Health Science Center's Clinical Translational Science
Institute; Accredo Foundation; Urban Child Institute, Memphis, TN; US
National Center for Research Resources [M01-RR00211]
FX Supported by the Grant HD055462 from the US National Institute of Child
Health and Human Development, the Children's Foundation Research Center
of Memphis, University of Tennessee Health Science Center's Clinical
Translational Science Institute, and Accredo Foundation [to R.M.A.]; by
the grants from the Urban Child Institute, Memphis, TN [to G.S.]; and by
the Grant M01-RR00211 from the US National Center for Research
Resources.
NR 41
TC 40
Z9 44
U1 0
U2 3
PU INT PEDIATRIC RESEARCH FOUNDATION, INC
PI BALTIMORE
PA 351 W CAMDEN ST, BALTIMORE, MD 21201-2436 USA
SN 0031-3998
J9 PEDIATR RES
JI Pediatr. Res.
PD NOV
PY 2010
VL 68
IS 5
BP 429
EP 434
PG 6
WC Pediatrics
SC Pediatrics
GA 670GR
UT WOS:000283409700012
PM 20639793
ER
PT J
AU Hafez, MM
AF Hafez, Mohammed M.
TI Walking Away from Terrorism: Accounts of Disengagement from Radical and
Extremist Movements
SO PERSPECTIVES ON POLITICS
LA English
DT Book Review
C1 [Hafez, Mohammed M.] Naval Postgrad Sch, Monterey, CA USA.
RP Hafez, MM (reprint author), Naval Postgrad Sch, Monterey, CA USA.
NR 1
TC 0
Z9 0
U1 2
U2 3
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 1537-5927
J9 PERSPECT POLIT
JI Perspect. Polit.
PD NOV
PY 2010
VL 8
IS 4
BP 1271
EP 1272
DI 10.1017/S1537592710002902
PG 3
WC Political Science
SC Government & Law
GA 684TZ
UT WOS:000284574500100
ER
PT J
AU Mazin, II
Devereaux, TP
Analytis, JG
Chu, JH
Fisher, IR
Muschler, B
Hackl, R
AF Mazin, I. I.
Devereaux, T. P.
Analytis, J. G.
Chu, Jiun-Haw
Fisher, I. R.
Muschler, B.
Hackl, R.
TI Pinpointing gap minima in Ba(Fe0.94Co0.06)(2)As-2 via band-structure
calculations and electronic Raman scattering
SO PHYSICAL REVIEW B
LA English
DT Article
ID SUPERCONDUCTORS
AB A detailed knowledge of the gap structure for the Fe-pnictide superconductors is still rather rudimentary with several conflicting reports of either nodes, deep gap minima, or fully isotropic gaps on the Fermi-surface sheets, both in the k(x)-k(y) plane and along the c axis. In this Rapid Communication, we present considerations for electronic Raman scattering which can help clarify the gap structure and topology using different light-scattering geometries. Using density-functional calculations for the Raman vertices, it is shown that the location of the gap minima may occur on loops stretching over a portion of the c axis in Ba(Fe0.94Co0.06)(2)As-2.
C1 [Mazin, I. I.] USN, Res Lab, Washington, DC 20375 USA.
[Devereaux, T. P.; Analytis, J. G.; Chu, Jiun-Haw; Fisher, I. R.] Stanford Univ, Stanford Inst Mat & Energy Sci, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Devereaux, T. P.; Analytis, J. G.; Chu, Jiun-Haw; Fisher, I. R.] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
[Muschler, B.; Hackl, R.] Bayer Akad Wissenschaft, Walther Meissner Inst, D-85748 Garching, Germany.
RP Mazin, II (reprint author), USN, Res Lab, Code 6393, Washington, DC 20375 USA.
FU Office of Naval Research; DFG via Research Unit [HA 2071/3, HA 2071/7,
FOR538, SPP1458]; BaCaTeC; Department of Energy, Office of Basic Energy
Sciences [DE-AC02-76SF00515]
FX I.I.M. acknowledges support from the Office of Naval Research. R.H
acknowledges support by the DFG under Grants No. HA 2071/3 and No. HA
2071/7 via Research Unit FOR538 and priority Program SPP1458,
respectively. R.H. and T.P.D. acknowledge support from BaCaTeC. The work
at SLAC and Stanford University is supported by the Department of
Energy, Office of Basic Energy Sciences under Contract No.
DE-AC02-76SF00515.
NR 16
TC 46
Z9 46
U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD NOV 1
PY 2010
VL 82
IS 18
AR 180502
DI 10.1103/PhysRevB.82.180502
PG 4
WC Physics, Condensed Matter
SC Physics
GA 673GL
UT WOS:000283647300002
ER
PT J
AU Colombant, DG
Manheimer, WM
AF Colombant, Denis G.
Manheimer, Wallace M.
TI Internal tests and improvements of the Krook model for nonlocal electron
energy transport in laser produced plasmas
SO PHYSICS OF PLASMAS
LA English
DT Article
ID STEEP TEMPERATURE-GRADIENTS; HEAT-TRANSPORT; CONDUCTION; RADIATION
AB Electron thermal transport in a laser produced plasma cannot be described with a local approximation in many regions of a laser produced plasma because the electron mean free path is longer than the temperature gradient scale length Since a Krook model for the electron Vlasov equation is analytically solvable in the nonlocal limit, one can find simple expressions for the electron thermal flux in the nonlocal limit, and these can be economically incorporated into fluid simulations The Krook model provides reasonable descriptions of both preheat and flux limitation We have analyzed the Krook model in a series of publications Here we streamline the presentation of the model, show qualitatively just what the model predicts in certain situations, give internal tests to check the validity of the model, and provide more accurate analytic approximations to the integral formulas which the model gives rise to (C) 2010 American Institute of Physics [doi:10.1063/1.3505304]
C1 [Colombant, Denis G.; Manheimer, Wallace M.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Colombant, DG (reprint author), USN, Res Lab, Div Plasma Phys, Code 6730, Washington, DC 20375 USA.
FU ONR; DOE
FX This work was supported by ONR and DOE
NR 17
TC 3
Z9 3
U1 1
U2 3
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD NOV
PY 2010
VL 17
IS 11
AR 112706
DI 10.1063/1.3505304
PG 11
WC Physics, Fluids & Plasmas
SC Physics
GA 697BB
UT WOS:000285486500067
ER
PT J
AU Walker, DN
Fernsler, RF
Blackwell, DD
Amatucci, WE
AF Walker, D. N.
Fernsler, R. F.
Blackwell, D. D.
Amatucci, W. E.
TI Using rf impedance probe measurements to determine plasma potential and
the electron energy distribution
SO PHYSICS OF PLASMAS
LA English
DT Article
AB Earlier work has demonstrated the usefulness of a network analyzer in plasma diagnostics using spherical probes in the thin sheath limit The rf signal applied to the probe by the network analyzer is small in magnitude compared to probe bias voltages, and the instrument returns both real and imaginary parts of the complex plasma impedance as a function of frequency for given bias voltages This information can be used to determine sheath resistance, sheath density profiles, and a technique for measuring electron temperature The present work outlines a method for finding plasma potential and the electron energy distribution within a limited energy range The results are compared to those using conventional Langmuir probe techniques The rf method has general application to diverse areas of plasma investigations when the plasma is uniform and probe dimensions are much less than the size of the plasma These applications include laboratory and space environments (C) 2010 American Institute of Physics [doi 10 1063/1 3501308]
C1 [Walker, D. N.] Global Strategies Grp Inc, Crofton, MD 21114 USA.
[Fernsler, R. F.; Blackwell, D. D.; Amatucci, W. E.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Walker, DN (reprint author), Global Strategies Grp Inc, Crofton, MD 21114 USA.
FU Office of Naval Research
FX This work was supported by the Office of Naval Research
NR 18
TC 6
Z9 6
U1 1
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD NOV
PY 2010
VL 17
IS 11
AR 113503
DI 10.1063/1.3501308
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 697BB
UT WOS:000285486500096
ER
PT J
AU Bishop-Lilly, KA
Turell, MJ
Willner, KM
Butani, A
Nolan, NME
Lentz, SM
Akmal, A
Mateczun, A
Brahmbhatt, TN
Sozhamannan, S
Whitehouse, CA
Read, TD
AF Bishop-Lilly, Kimberly A.
Turell, Michael J.
Willner, Kristin M.
Butani, Amy
Nolan, Nichole M. E.
Lentz, Shannon M.
Akmal, Arya
Mateczun, Al
Brahmbhatt, Trupti N.
Sozhamannan, Shanmuga
Whitehouse, Chris A.
Read, Timothy D.
TI Arbovirus Detection in Insect Vectors by Rapid, High-Throughput
Pyrosequencing
SO PLOS NEGLECTED TROPICAL DISEASES
LA English
DT Article
ID VIRUS-INFECTION; DENGUE-2 VIRUS; AEDES-AEGYPTI; GENOME; DIVERSITY;
BACTERIUM; MICROBES; SEQUENCE; GENES
AB Background: Despite the global threat caused by arthropod-borne viruses, there is not an efficient method for screening vector populations to detect novel viral sequences. Current viral detection and surveillance methods based on culture can be costly and time consuming and are predicated on prior knowledge of the etiologic agent, as they rely on specific oligonucleotide primers or antibodies. Therefore, these techniques may be unsuitable for situations when the causative agent of an outbreak is unknown.
Methodology/Principal Findings: In this study we explored the use of high-throughput pyrosequencing for surveillance of arthropod-borne RNA viruses. Dengue virus, a member of the positive strand RNA Flavivirus family that is transmitted by several members of the Aedes genus of mosquitoes, was used as a model. Aedes aegypti mosquitoes experimentally infected with dengue virus type 1 (DENV-1) were pooled with noninfected mosquitoes to simulate samples derived from ongoing arbovirus surveillance programs. Using random-primed methods, total RNA was reverse-transcribed and resulting cDNA subjected to 454 pyrosequencing.
Conclusions/Significance: In two types of samples, one with 5 adult mosquitoes infected with DENV-1- and the other with 1 DENV-1 infected mosquito and 4 noninfected mosquitoes, we identified DENV-1 DNA sequences. DENV-1 sequences were not detected in an uninfected control pool of 5 adult mosquitoes. We calculated the proportion of the Ae. aegypti metagenome contributed by each infecting Dengue virus genome (p(IP)), which ranged from 2.75x10(-8) to 1.08x10(-7). DENV-1 RNA was sufficiently concentrated in the mosquito that its detection was feasible using current high-throughput sequencing instrumentation. We also identified some of the components of the mosquito microflora on the basis of the sequence of expressed RNA. This included members of the bacterial genera Pirellula and Asaia, various fungi, and a potentially uncharacterized mycovirus.
C1 [Bishop-Lilly, Kimberly A.; Willner, Kristin M.; Butani, Amy; Nolan, Nichole M. E.; Lentz, Shannon M.; Akmal, Arya; Mateczun, Al; Brahmbhatt, Trupti N.; Sozhamannan, Shanmuga; Read, Timothy D.] USN, Biol Def Res Directorate, Med Res Ctr, Silver Spring, MD USA.
[Turell, Michael J.; Whitehouse, Chris A.] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
RP Bishop-Lilly, KA (reprint author), USN, Biol Def Res Directorate, Med Res Ctr, Silver Spring, MD USA.
EM Kim.bishop-lilly@med.navy.mil
RI Read, Timothy/E-6240-2011
FU Defense Threat Reduction Agency (DTRA) [G.G.0004_06_NM_B]
FX Funding was provided by Defense Threat Reduction Agency (DTRA;
www.dtra.mil) for project G.G.0004_06_NM_B to T. D. Read. The funders
had no role in study design, data collection and analysis, decision to
publish, or preparation of the manuscript.
NR 40
TC 28
Z9 29
U1 1
U2 12
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1935-2735
J9 PLOS NEGLECT TROP D
JI Plos Neglect. Trop. Dis.
PD NOV
PY 2010
VL 4
IS 11
AR e878
DI 10.1371/journal.pntd.0000878
PG 10
WC Infectious Diseases; Parasitology; Tropical Medicine
SC Infectious Diseases; Parasitology; Tropical Medicine
GA 687GB
UT WOS:000284765900020
PM 21085471
ER
PT J
AU Christophersen, M
Phlips, BF
AF Christophersen, Marc
Phlips, Bernard F.
TI Recent Patents on Electrophoretic Displays and Materials
SO RECENT PATENTS ON NANOTECHNOLOGY
LA English
DT Article
DE Electrophoretic display; charged particles; electronic paper; flexible
displays; micro-capsule; optical properties; thin film
ID ELECTRONIC PAPER; DISPERSION POLYMERIZATION; PARTICLES; MICROCAPSULES;
INK
AB Electrophoretic displays (EPDs) have made their way into consumer products. EPDs enable displays that offer the look and form of a printed page, often called "electronic paper". We will review recent apparatus and method patents for EPD devices and their fabrication. A brief introduction into the basic display operation and history of EPDs is given, while pointing out the technological challenges and difficulties for inventors. Recently, the majority of scientific publications and patenting activity has been directed to micro-segmented EPDs. These devices exhibit high optical reflectance and contrast, wide viewing angle, and high image resolution. Micro-segmented EPDs can also be integrated with flexible transistors technologies into flexible displays. Typical particles size ranges from 200 nm to 2 micrometer. Currently one very active area of patenting is the development of full-color EPDs. We summarize the recent patenting activity for EPDs and provide comments on perceiving factors driving intellectual property protection for EPD technologies.
C1 [Christophersen, Marc; Phlips, Bernard F.] USN, Res Lab, Washington, DC 20375 USA.
RP Christophersen, M (reprint author), USN, Res Lab, Code 7654,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM marc.christophersen@nrl.navy.mil
RI Christophersen, Marc/B-6795-2008
FU U.S. Naval Research Laboratory
FX We would like to thank Andrew McGill for helpful discussions. This work
was funded by the U.S. Naval Research Laboratory.
NR 63
TC 2
Z9 3
U1 0
U2 10
PU BENTHAM SCIENCE PUBL LTD
PI SHARJAH
PA EXECUTIVE STE Y26, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB
EMIRATES
SN 1872-2105
J9 RECENT PAT NANOTECH
JI Recent Pat. Nanotechnology
PD NOV
PY 2010
VL 4
IS 3
BP 137
EP 149
PG 13
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 709LB
UT WOS:000286438400001
PM 20565384
ER
PT J
AU Todd, CS
Nasir, A
Stanekzai, MR
Abed, AMS
Strathdee, SA
Bautista, CT
Scott, PT
Botros, BA
Tjaden, J
AF Todd, Catherine S.
Nasir, Abdul
Stanekzai, Mohammad Raza
Abed, Abdullah M. S.
Strathdee, Steffanie A.
Bautista, Christian T.
Scott, Paul T.
Botros, Boulos A.
Tjaden, Jeffrey
TI Prevalence and Correlates of Syphilis and Condom Use Among Male
Injection Drug Users in Four Afghan Cities
SO SEXUALLY TRANSMITTED DISEASES
LA English
DT Article; Proceedings Paper
CT 17th International AIDS Conference
CY AUG 03-08, 2008
CL Mexico City, MEXICO
ID SEXUALLY-TRANSMITTED INFECTIONS; FEMALE SEX WORKERS; RISK BEHAVIORS;
HEPATITIS-B; HIV-INFECTION; PAKISTAN; KABUL; INDIA; TRANSMISSION;
PREVENTION
AB Background: Injecting drug use is increasing in Afghanistan but little is known about sexual risk behaviors and sexually transmitted infection (STI) prevalence among injection drug users (IDU). The purpose of this study is to assess prevalence and correlates of syphilis and condom use with female sex workers (FSWs) among male IDUs in Hirat, Jalalabad, Kabul, and Mazar-i-Sharif, Afghanistan.
Methods: Participants in this cross-sectional study completed an interviewer-administered questionnaire and serologic testing for syphilis between June 2005 and January 2008. Factors associated with syphilis condom use with FSWs were assessed with site-controlled logistic regression analysis.
Results: Of 1078 male IDUs, most (90.3%) reported prior sexual experience, of whom 27.6% reported any condom use. Sexual experiences with FSWs (58.1%) and men or boys (25.7%) were common, although prior condom use with FSWs (32.6%) or male partners (10.8%) was relatively rare. Few reported having a lifetime STI diagnosis (6.3%, n = 68) or symptoms (10.4%, n = 110) in the last 6 months. Prevalence of syphilis was 3.72% (95% CI: 2.66%-5.06%) and varied significantly between sites ranging from 0% (Jalalabad) to 13.9% (Mazar-i-Sharif) (P < 0.001). Syphilis was significantly associated with STI diagnosis (adjusted odds ratio [AOR] = 3.84) or sex with FSWs (AOR = 3.82) in the last 6 months, and with lower (<= 6 years) educational level (AOR = 2.20). Prior condom use with FSWs was independently associated with living outside Afghanistan in the last decade (AOR = 5.52, 95% CI: 1.83-16.71), higher income (AOR = 2.03, 95% CI: 1.17-3.51), greater number of lifetime partners (AOR = 1.80, 95% CI: 1.32-2.45), and younger age (AOR = 0.985, 95% CI: 0.973-0.998).
Conclusions: Although prevalence of syphilis and condom use varied significantly by site, high levels of risky sexual behavior were common, and consistent condom use was rare among IDUs in Afghanistan. Harm reduction programming should incorporate sexual risk reduction and condom promotion and distribution in Afghan cities.
C1 [Todd, Catherine S.] Columbia Univ, Dept Obstet & Gynecol, New York, NY 10032 USA.
[Nasir, Abdul; Stanekzai, Mohammad Raza] Int Rescue Comm, Kabul, Afghanistan.
[Abed, Abdullah M. S.] Natl HIV AIDS Control Program, Minist Publ Hlth, Kabul, Afghanistan.
[Strathdee, Steffanie A.] Univ Calif San Diego, Dept Med, San Diego, CA 92103 USA.
[Bautista, Christian T.; Scott, Paul T.] Walter Reed Army Inst Res, US Mil HIV Res Program, Rockville, MD USA.
[Botros, Boulos A.; Tjaden, Jeffrey] USN, Med Res Unit 3, Cairo, Egypt.
RP Todd, CS (reprint author), Columbia Univ, Dept Obstet & Gynecol, PH 16-69,622 West 168th St, New York, NY 10032 USA.
EM cst2121@columbia.edu
RI Bautista, Christian/B-2812-2011
FU FIC NIH HHS [K01TW007408]
NR 35
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U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0148-5717
J9 SEX TRANSM DIS
JI Sex. Transm. Dis.
PD NOV
PY 2010
VL 37
IS 11
BP 719
EP 725
DI 10.1097/OLQ.0b013e3181e2c76a
PG 7
WC Infectious Diseases
SC Infectious Diseases
GA 671FY
UT WOS:000283487100010
PM 20585276
ER
PT J
AU Viall, NM
Spence, HE
Vourlidas, A
Howard, R
AF Viall, Nicholeen M.
Spence, Harlan E.
Vourlidas, Angelos
Howard, Russell
TI Examining Periodic Solar-Wind Density Structures Observed in the SECCHI
Heliospheric Imagers
SO SOLAR PHYSICS
LA English
DT Article
ID SUN; EJECTION; DRIVEN; CORONA
AB We present an analysis of small-scale, periodic, solar-wind density enhancements (length scales as small as approximate to 1000 Mm) observed in images from the Heliospheric Imager (HI) aboard STEREO-A. We discuss their possible relationship to periodic fluctuations of the proton density that have been identified at 1 AU using in-situ plasma measurements. Specifically, Viall, Kepko, and Spence (J. Geophys. Res. 113, A07101, 2008) examined 11 years of in-situ solar-wind density measurements at 1 AU and demonstrated that not only turbulent structures, but also nonturbulent, periodic density structures exist in the solar wind with scale sizes of hundreds to one thousand Mm. In a subsequent paper, Viall, Spence, and Kasper (Geophys. Res. Lett. 36, L23102, 2009) analyzed the alpha-to-proton solar-wind abundance ratio measured during one such event of periodic density structures, demonstrating that the plasma behavior was highly suggestive that either temporally or spatially varying coronal source plasma created those density structures. Large periodic density structures observed at 1 AU, which were generated in the corona, can be observable in coronal and heliospheric white-light images if they possess sufficiently high density contrast. Indeed, we identify such periodic density structures as they enter the HI field of view and follow them as they advect with the solar wind through the images. The smaller, periodic density structures that we identify in the images are comparable in size to the larger structures analyzed in-situ at 1 AU, yielding further evidence that periodic density enhancements are a consequence of coronal activity as the solar wind is formed.
C1 [Viall, Nicholeen M.] NASA, Goddard Space Flight Ctr, Solar Phys Lab, Greenbelt, MD 20771 USA.
[Spence, Harlan E.] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
[Vourlidas, Angelos; Howard, Russell] USN, Res Lab, Solar Phys Branch, Washington, DC 20375 USA.
RP Viall, NM (reprint author), NASA, Goddard Space Flight Ctr, Solar Phys Lab, Greenbelt, MD 20771 USA.
EM Nicholeen.M.Viall@nasa.gov
RI Viall, Nicholeen/D-1687-2012; Spence, Harlan/A-1942-2011; Vourlidas,
Angelos/C-8231-2009;
OI Vourlidas, Angelos/0000-0002-8164-5948; Spence,
Harlan/0000-0002-2526-2205
FU NASA [NNG05GK65G]
FX We thank the STEREO/SECCHI team for the use of these excellent data. The
STEREO/SECCHI data used here are produced by an international consortium
of the Naval Research Laboratory (USA), Lockheed Martin Solar and
Astrophysics Lab (USA), NASA Goddard Space Flight Center (USA),
Rutherford Appleton Laboratory (UK), University of Birmingham (UK),
Max-Planck-Institut for Sonnensystemforschung (Germany), Centre Spatiale
de Liege (Belgium), Institut d'Optique Theorique et Appliquee (France),
and Institut d'Astrophysique Spatiale (France). This research was
supported by NASA Grant No. NNG05GK65G and an appointment to the NASA
Postdoctoral Program at the Goddard Space Flight Center, administered by
Oak Ridge Associated Universities through a contract with NASA.
NR 21
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PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-0938
EI 1573-093X
J9 SOL PHYS
JI Sol. Phys.
PD NOV
PY 2010
VL 267
IS 1
BP 175
EP 202
DI 10.1007/s11207-010-9633-1
PG 28
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 682VG
UT WOS:000284430500008
ER
PT J
AU Ancona, MG
Bennett, BR
Boos, JB
AF Ancona, M. G.
Bennett, B. R.
Boos, J. B.
TI Scaling projections for Sb-based p-channel FETs
SO SOLID-STATE ELECTRONICS
LA English
DT Article
DE Hole transport; Antimonides; p-Channel; Device scaling; Density-gradient
theory; Complementary circuits
ID ELECTRON; PERFORMANCE; SINGLE; STATE; HEMTS
AB Numerical device modeling is used to study p-channel FETs with InSb, GaSb and InGaSb channels. To be as realistic as possible, the basic parameters are chosen to be those measured experimentally in state-of-the-art high-mobility materials, and where possible, predictions are compared against published data. Confinement effects are captured in the simulations using the density-gradient description of quantum transport. The emphasis is on projecting scaling properties and ultimate performance, with key issues being short-channel effects, the importance of source-drain leakage current, power considerations and p(+)-cap design. Although important, issues related to gate leakage current and gate stack design are not well addressed by modeling, and so are not considered in detail. With III-V complementary circuits and high-speed, low-power applications in mind, the general conclusion is that among the antimonide-based pFETs, InGaSb devices provide the best balance of speed and power dissipation. Published by Elsevier Ltd.
C1 [Ancona, M. G.; Bennett, B. R.; Boos, J. B.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Ancona, MG (reprint author), USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
EM ancona@estd.nrl.navy.mil
RI Bennett, Brian/A-8850-2008
OI Bennett, Brian/0000-0002-2437-4213
FU Office of Naval Research
FX The authors thank the Office of Naval Research for partial support of
this work.
NR 29
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD NOV
PY 2010
VL 54
IS 11
BP 1349
EP 1358
DI 10.1016/j.sse.2010.06.022
PG 10
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA 644DC
UT WOS:000281350600019
ER
PT J
AU Storm, DF
Katzer, DS
Deen, DA
Bass, R
Meyer, DJ
Roussos, JA
Binari, SC
Paskova, T
Preble, EA
Evans, KR
AF Storm, D. F.
Katzer, D. S.
Deen, D. A.
Bass, R.
Meyer, D. J.
Roussos, J. A.
Binari, S. C.
Paskova, T.
Preble, E. A.
Evans, K. R.
TI Proximity effects of beryllium-doped GaN buffer layers on the electronic
properties of epitaxial AlGaN/GaN heterostructures
SO SOLID-STATE ELECTRONICS
LA English
DT Article
DE Gallium nitride; High electron mobility transistor; Molecular beam
epitaxy; Homoepitaxy; Doping
ID MOLECULAR-BEAM EPITAXY; MICROWAVE-POWER PERFORMANCE; HEMTS; MBE; GROWTH;
TRANSISTORS; GANHEMTS
AB AlGaN/GaN/Be:GaN heterostructures have been grown by rf-plasma molecular beam epitaxy on freestanding semi-insulating GaN substrates, employing unintentionally-doped (UID) GaN buffer layers with thicknesses. d(UID), varying between 50 nm and 500 nm. We have found that the heterostructures with UID buffers thicker than 200 nm exhibit much improved Hall properties and inter-device isolation current compared to heterostructures with d(UID) < 200 nm. The output conductance of devices fabricated on these heterostructures increases as d(UID) decreases below 200 nm, and devices with gate lengths of 240 nm and 1 mu m exhibited no significant difference in output conductance. Evidence of buffer trapping is observed in devices for which d(UID) <= 100 nm. The observed effects are tentatively explained by the presence of parallel conduction paths in samples with non-optimized UID buffer thickness. Published by Elsevier Ltd.
C1 [Storm, D. F.; Katzer, D. S.; Deen, D. A.; Bass, R.; Meyer, D. J.; Roussos, J. A.; Binari, S. C.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Paskova, T.; Preble, E. A.; Evans, K. R.] Kyma Technol Inc, Raleigh, NC 27617 USA.
RP Storm, DF (reprint author), USN, Res Lab, Div Elect Sci & Technol, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.storm@nrl.navy.mil
RI Paskova, Tanya/D-2203-2009; Katzer, D. Scott/N-7841-2013
FU Office of Naval Research
FX The authors gratefully acknowledge the assistance of Neil Green for
device processing. The work at NRL was supported by the Office of Naval
Research.
NR 20
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD NOV
PY 2010
VL 54
IS 11
BP 1470
EP 1473
DI 10.1016/j.sse.2010.05.041
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA 644DC
UT WOS:000281350600038
ER
PT J
AU Gaver, DP
Jacobs, PA
AF Gaver, Donald P.
Jacobs, Patricia A.
TI Reliability Growth Management Metrics and Statistical Methods for
Discrete-Use Systems Comment
SO TECHNOMETRICS
LA English
DT Editorial Material
C1 [Gaver, Donald P.; Jacobs, Patricia A.] USN, Dept Operat Res, Postgrad Sch, Monterey, CA 93943 USA.
RP Gaver, DP (reprint author), USN, Dept Operat Res, Postgrad Sch, Monterey, CA 93943 USA.
EM dgaver@nps.edu; pajacobs@nps.edu
NR 4
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U1 0
U2 3
PU AMER STATISTICAL ASSOC
PI ALEXANDRIA
PA 732 N WASHINGTON ST, ALEXANDRIA, VA 22314-1943 USA
SN 0040-1706
J9 TECHNOMETRICS
JI Technometrics
PD NOV
PY 2010
VL 52
IS 4
BP 389
EP 391
DI 10.1198/TECH.2010.09193
PG 3
WC Statistics & Probability
SC Mathematics
GA 698BB
UT WOS:000285565400003
ER
PT J
AU Porch, D
AF Porch, Douglas
TI The Bitter Sea:The Struggle for Mastery in the Mediterranean, 1935-1949
SO WAR IN HISTORY
LA English
DT Book Review
C1 [Porch, Douglas] USN, Postgrad Sch, Monterey, CA USA.
RP Porch, D (reprint author), USN, Postgrad Sch, Monterey, CA USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0968-3445
J9 WAR HIST
JI War Hist.
PD NOV
PY 2010
VL 17
IS 4
BP 544
EP 546
DI 10.1177/09683445100170040908
PG 3
WC History; International Relations
SC History; International Relations
GA 682KY
UT WOS:000284403600017
ER
PT J
AU Wojciechowski, J
Chase-Baldwin, K
Wasieloski, LP
Padilla, S
Vora, GJ
Taitt, CR
AF Wojciechowski, Jason
Chase-Baldwin, Kitty
Wasieloski, Leonard P., Jr.
Padilla, Susana
Vora, Gary J.
Taitt, Chris Rowe
TI Enhancement of deoxyribonucleic acid microarray performance using
post-hybridization signal amplification
SO ANALYTICA CHIMICA ACTA
LA English
DT Article
DE CombiMatrix; Microarray; Electrochemical detection; Super avidin-biotin
system; Secondary enzymatic enhancement
ID CATALYZED REPORTER DEPOSITION; IN-SITU HYBRIDIZATION; SUBTYPE
IDENTIFICATION; EXPRESSION PROFILES; PATHOGEN DETECTION;
DEHALOCOCCOIDES; PREDICTORS; CANCER; ASSAYS; GENES
AB Microarray performance depends upon the ability to screen samples against a vast array of probes with the appropriate sensitivity and selectivity While these factors are significantly influenced by probe design they are also subject to the particular detection methodology and reagents employed Herein we describe the incorporation of super avidin-biotin system (SABS) and secondary enzymatic enhancement (SEE) as post-hybridization signal amplification techniques to improve the sensitivity of oligonucleotide microarrays To these ends we tested these methods on electrochemically Interrogated arrays using both purified influenza A PCR products and randomly amplified genomic Francisella tularensis DNA as targets While SABS treatment did not improve sensitivity for CombiMatrix ElectraSense (R) arrays using purified influenza A cDNA chip sensitivity was improved 10-fold for randomly amplified targets SEE improved performance to a greater degree and was able to lower the detection limits 10-fold for influenza A and 100-fold for F tularensis DNA These results indicate the promising capability of post-hybridization amplification techniques for enhancing microarray performance Published by Elsevier B V
C1 [Wojciechowski, Jason; Vora, Gary J.; Taitt, Chris Rowe] USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20376 USA.
[Chase-Baldwin, Kitty; Wasieloski, Leonard P., Jr.; Padilla, Susana] USA, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA.
RP Wojciechowski, J (reprint author), USN, Ctr Biomol Sci & Engn, Res Lab, Bld 30,4555 Overlook Ave SW, Washington, DC 20376 USA.
OI Vora, Gary/0000-0002-0657-8597
FU Joint Science and Technology Office for Chemical and Biological
Defense/Defense Threat Reduction Agency [8 10006_07_RD_B, 8
10016_07_NRL_B]; American Society for Engineering Education
FX This work was supported by Joint Science and Technology Office for
Chemical and Biological Defense/Defense Threat Reduction Agency Projects
8 10006_07_RD_B and 8 10016_07_NRL_B J W was supported by a postdoctoral
fellowship sponsored through the American Society for Engineering
Education Opinions interpretations conclusions and recommendations are
those of the authors and do not represent those of the US Government the
US Department of Defense US Army or the US Navy
NR 32
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U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0003-2670
J9 ANAL CHIM ACTA
JI Anal. Chim. Acta
PD OCT 29
PY 2010
VL 679
IS 1-2
BP 85
EP 90
DI 10.1016/j.aca.2010.09.007
PG 6
WC Chemistry, Analytical
SC Chemistry
GA 677CA
UT WOS:000283965500011
PM 20951861
ER
PT J
AU Ansumana, R
Malanoski, AP
Bockarie, AS
Sundufu, AJ
Jimmy, DH
Bangura, U
Jacobsen, KH
Lin, BC
Stenger, DA
AF Ansumana, Rashid
Malanoski, Anthony P.
Bockarie, Alfred S.
Sundufu, Abu James
Jimmy, David H.
Bangura, Umaru
Jacobsen, Kathryn H.
Lin, Baochuan
Stenger, David A.
TI Enabling methods for community health mapping in developing countries
SO INTERNATIONAL JOURNAL OF HEALTH GEOGRAPHICS
LA English
DT Article
ID GEOGRAPHIC INFORMATION-SYSTEMS; GIS; CARE
AB Background: Spatial epidemiology is useful but difficult to apply in developing countries due to the low availability of digitized maps and address systems, accurate population distributions, and computational tools. A community-based mapping approach was used to demonstrate that participatory geographic information system (PGIS) techniques can provide information helpful for health and community development.
Results: The PGIS process allowed for the rapid determination of sectional (neighborhood) boundaries within the city of Bo, Sierra Leone. When combined with data about hospital laboratory visits, a catchment area for one hospital in Bo could be established. A survey of households from within the catchment area determined that the average population per household (about 6 individuals) was similar to that found in the 2004 census. However, we also found that the average house was inhabited by more than one household, for an average of 17.5 inhabitants per residential building, which is critical information to know when estimating population size using remote imagery that can detect and enumerate buildings.
Conclusions: The methods developed in this paper serve as a model for the involvement of communities in the generation of municipal maps and their application to community and health concerns.
C1 [Malanoski, Anthony P.; Lin, Baochuan; Stenger, David A.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Ansumana, Rashid; Bockarie, Alfred S.; Sundufu, Abu James; Jimmy, David H.; Bangura, Umaru] Njala Univ, Mercy Hosp Res Lab, Kulanda Town, Bo, Sierra Leone.
[Jacobsen, Kathryn H.] George Mason Univ, Dept Global & Community Hlth, Fairfax, VA 22030 USA.
RP Malanoski, AP (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM anthony.malanoski@nrl.navy.mil
RI Jacobsen, Kathryn/B-5857-2008; Malanoski, Anthony/C-7814-2011; Lin,
Baochuan/A-8390-2009
OI Jacobsen, Kathryn/0000-0002-4198-6246; Malanoski,
Anthony/0000-0001-6192-888X; Lin, Baochuan/0000-0002-9484-0785
NR 22
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U1 2
U2 9
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1476-072X
J9 INT J HEALTH GEOGR
JI Int. J. Health Geogr.
PD OCT 29
PY 2010
VL 9
AR 56
DI 10.1186/1476-072X-9-56
PG 8
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 681XP
UT WOS:000284357900001
PM 21034454
ER
PT J
AU Min, M
Wang, PC
Campbell, JR
Zong, XM
Li, Y
AF Min, Min
Wang, Pucai
Campbell, James R.
Zong, Xuemei
Li, Ying
TI Midlatitude cirrus cloud radiative forcing over China
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID GENERAL-CIRCULATION MODEL; ALGORITHM DESCRIPTION; OPTICAL-PROPERTIES;
RADAR MEASUREMENTS; TROPICAL CIRRUS; PART I; LIDAR; CLIMATE; SCATTERING;
RETRIEVAL
AB Midlatitude cirrus cloud radiative forcing (CRF) values at the tropopause over China are estimated using a radiative transfer model initialized by Earth-orbiting Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and Moderate Resolution Imaging Spectroradiometer (MODIS) measurements. A derived diurnal mean CRF, solved as a function of solar zenith angle, theta, though varied over the solar day, is used to evaluate the sensitivity and influence of theta on CRF calculations. Although a total mean net (NET) CRF of 36.5 +/- 48.4 W m (2), estimated using direct observation data, is approximately equal to the value of 36.8 +/- 50.4 W m (2) from the diurnal mean simulations, monthly differences illustrate a seasonality function dictating the influence of theta on CRF. A significant positive NET effect exceeding similar to 80 W m (2) over the Qinghai-Tibet Plateau is found, which is in contrast to a NET CRF found to be closer to 20 W m (2) for most parts of China. This finding is attributable to a more prominent warming effect of cirrus clouds observed over higher terrain. Furthermore, a warmer and more humid thermal profile over the high terrain in summer induces decreases in longwave (LW) and NET CRF over the plateau. The seasonal spatial variability of cirrus cloud visible optical depths also contributes to the corresponding spatial variability of shortwave (SW), LW, and NET CRF solved.
C1 [Min, Min; Wang, Pucai; Zong, Xuemei] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China.
[Min, Min] China Meteorol Adm, Natl Satellite Meteorol Ctr, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing, Peoples R China.
[Campbell, James R.] USN, Res Lab, UCAR Visiting Scientist Program, Monterey, CA 93943 USA.
[Li, Ying] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China.
[Li, Ying] Chinese Acad Sci, Grad Univ, Beijing 100029, Peoples R China.
RP Min, M (reprint author), Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China.
EM minmin@cma.gov.cn
RI Campbell, James/C-4884-2012
OI Campbell, James/0000-0003-0251-4550
FU National Science Foundation of China [40875984]; National Basic Research
Program of China (973 Program) [2010CB950800, 2010CB950802]; National
Science Foundation for Youth Science Foundation of China [40705012]
FX The authors thank Xiangao Xia who has provided many worthwhile
suggestions. CALIOP and MODIS data sets and the Fu-Liou radiative
transfer code are freely disseminated by the NASA Langley Research
Center, and we acknowledge them for these valuable resources. Surface
albedo data are freely downloaded from the IGBP website. We acknowledge
their efforts and cooperation in providing the high-quality data. Author
J.C. thanks J.S. Reid and D. L. Westphal for their support. We
appreciate the valuable comments and suggestions made by three anonymous
reviewers that greatly improved the paper. This research has been
supported by National Science Foundation of China (40875984), National
Basic Research Program of China (973 Program) under grant 2010CB950800
(2010CB950802), and National Science Foundation for Youth Science
Foundation of China (40705012).
NR 53
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U1 0
U2 12
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 OCT 29
PY 2010
VL 115
AR D20210
DI 10.1029/2010JD014161
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 674MP
UT WOS:000283750600008
ER
PT J
AU Crawford, C
Akdogan, T
Alarcon, R
Bertozzi, W
Booth, E
Botto, T
Calarco, JR
Clasie, B
DeGrush, A
Donnelly, TW
Dow, K
Farkhondeh, M
Fatemi, R
Filoti, O
Franklin, W
Gao, H
Geis, E
Gilad, S
Hasell, D
Karpius, P
Kohl, M
Kolster, H
Lee, T
Lomon, E
Maschinot, A
Matthews, J
McIlhany, K
Meitanis, N
Milner, R
Rapaport, J
Redwine, R
Seely, J
Shinozaki, A
Sindile, A
Sirca, S
Six, E
Smith, T
Tonguc, B
Tschalaer, C
Tsentalovich, E
Turchinetz, W
Xiao, Y
Xu, W
Zhang, C
Zhou, Z
Ziskin, V
Zwart, T
AF Crawford, C.
Akdogan, T.
Alarcon, R.
Bertozzi, W.
Booth, E.
Botto, T.
Calarco, J. R.
Clasie, B.
DeGrush, A.
Donnelly, T. W.
Dow, K.
Farkhondeh, M.
Fatemi, R.
Filoti, O.
Franklin, W.
Gao, H.
Geis, E.
Gilad, S.
Hasell, D.
Karpius, P.
Kohl, M.
Kolster, H.
Lee, T.
Lomon, E.
Maschinot, A.
Matthews, J.
McIlhany, K.
Meitanis, N.
Milner, R.
Rapaport, J.
Redwine, R.
Seely, J.
Shinozaki, A.
Sindile, A.
Sirca, S.
Six, E.
Smith, T.
Tonguc, B.
Tschalaer, C.
Tsentalovich, E.
Turchinetz, W.
Xiao, Y.
Xu, W.
Zhang, C.
Zhou, Z.
Ziskin, V.
Zwart, T.
TI Role of mesons in the electromagnetic form factors of the nucleon
SO PHYSICAL REVIEW C
LA English
DT Article
ID SQUARED 4-MOMENTUM TRANSFERS; ELECTRON-DEUTERON SCATTERING; PROTON
ELASTIC-SCATTERING; LARGE MOMENTUM-TRANSFER; EXCLUSIVE PROCESSES;
POLARIZATION TRANSFER; QUANTUM CHROMODYNAMICS; PRECISION-MEASUREMENT;
PERTURBATIVE QCD; CHARGE RADIUS
AB The roles played by mesons in the electromagnetic form factors of the nucleon are explored using as a basis a model containing vector mesons with coupling to the continuum together with the asymptotic Q(2) behavior of perturbative QCD. Specifically, the vector dominance model (GKex) developed by E. L. Lomon is employed, as it is known to be very successful in representing the existing high-quality data published to date. An analysis is made of the experimental uncertainties present when the differences between the GKex model and the data are expanded in orthonormal basis functions. A main motivation for the present study is to provide insight into how the various ingredients in this model yield the measured behavior, including discussions of when dipole form factors are to be expected or not, of which mesons are the major contributors, for instance, at low Q(2) or large distances, and of what effects are predicted from coupling to the continuum. Such insights are first discussed in momentum space, followed by an analysis of how different and potentially useful information emerges when both the experimental and theoretical electric form factors are Fourier transformed to coordinate space. While these Fourier transforms should not be interpreted as "charge distributions," nevertheless the roles played by the various mesons, especially those which are dominant at large or small distance scales, can be explored via such experiment-theory comparisons.
C1 [Crawford, C.] Univ Kentucky, Lexington, KY 40504 USA.
[Akdogan, T.; Bertozzi, W.; Botto, T.; Clasie, B.; DeGrush, A.; Donnelly, T. W.; Dow, K.; Farkhondeh, M.; Fatemi, R.; Franklin, W.; Gilad, S.; Hasell, D.; Kolster, H.; Lomon, E.; Maschinot, A.; Matthews, J.; Meitanis, N.; Milner, R.; Redwine, R.; Seely, J.; Shinozaki, A.; Sirca, S.; Six, E.; Tschalaer, C.; Tsentalovich, E.; Turchinetz, W.; Xiao, Y.; Zhang, C.; Zhou, Z.; Ziskin, V.; Zwart, T.] MIT, Cambridge, MA 02139 USA.
[Alarcon, R.; Geis, E.; Tonguc, B.] Arizona State Univ, Tempe, AZ 85287 USA.
[Booth, E.] Boston Univ, Boston, MA 02215 USA.
[Calarco, J. R.; Filoti, O.; Karpius, P.; Lee, T.; Sindile, A.] Univ New Hampshire, Durham, NH 03824 USA.
[Gao, H.; Xu, W.] Duke Univ, Durham, NC 27708 USA.
[Kohl, M.] Hampton Univ, Hampton, VA 23664 USA.
[McIlhany, K.] USN Acad, Annapolis, MD 21402 USA.
[Rapaport, J.] Ohio Univ, Athens, OH 45701 USA.
[Smith, T.] Dartmouth Coll, Hanover, NH 03755 USA.
RP Crawford, C (reprint author), Univ Kentucky, Lexington, KY 40504 USA.
RI Gao, Haiyan/G-2589-2011
FU United States Department of Energy [DE-FC02-94ER40818]; National Science
Foundation [PHY-0855584]
FX This work has been supported by the United States Department of Energy
under Cooperative Agreement DE-FC02-94ER40818 and National Science
Foundation Grant No. PHY-0855584.
NR 105
TC 20
Z9 20
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 29
PY 2010
VL 82
IS 4
AR 045211
DI 10.1103/PhysRevC.82.045211
PG 18
WC Physics, Nuclear
SC Physics
GA 673GV
UT WOS:000283648400012
ER
PT J
AU Islam, MF
Nossa, JF
Canali, CM
Pederson, M
AF Islam, M. Fhokrul
Nossa, Javier F.
Canali, Carlo M.
Pederson, Mark
TI First-principles study of spin-electric coupling in a {Cu-3} single
molecular magnet
SO PHYSICAL REVIEW B
LA English
DT Article
ID SPINTRONICS; APPROXIMATION; MAGNETIZATION
AB We report on a study of the electronic and magnetic properties of the triangular antiferromagnetic {Cu3} single-molecule magnet, based on spin-density-functional theory. Our calculations show that the low-energy magnetic properties are correctly described by an effective three-site spin s = 1/2 Heisenberg model, with an antiferromagnetic exchange coupling J approximate to 5 meV. The ground-state manifold of the model is composed of two degenerate spin S = 1/2 doublets of opposite chirality. Due to lack of inversion symmetry in the molecule these two states are coupled by an external electric field, even when spin-orbit interaction is absent. The spin-electric coupling can be viewed as originating from a modified exchange constant delta J induced by the electric field. We find that the calculated transition rate between the chiral states yields an effective electric dipole moment d = 3.38 x 10(-33) C m approximate to e10(-4)a, where a is the Cu separation. For external electric fields epsilon approximate to 10(8) V/m this value corresponds to a Rabi time tau approximate to 1 ns and to a delta J on the order of a few mu eV.
C1 [Islam, M. Fhokrul; Nossa, Javier F.; Canali, Carlo M.] Linnaeus Univ, Sch Comp Sci Phys & Math, Kalmar, Sweden.
[Pederson, Mark] USN, Res Lab, Washington, DC 20375 USA.
RP Islam, MF (reprint author), Linnaeus Univ, Sch Comp Sci Phys & Math, Kalmar, Sweden.
OI Islam, Md/0000-0003-1847-0863
FU Faculty of Natural Sciences at Linnaeus University; Swedish Research
Council [621-2007-5019]
FX We would like to thank Daniel Loss for introducing us to this problem
and for several useful discussions. This work was supported by the
Faculty of Natural Sciences at Linnaeus University and the Swedish
Research Council under Grant No. 621-2007-5019.
NR 37
TC 28
Z9 28
U1 3
U2 21
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 26
PY 2010
VL 82
IS 15
AR 155446
DI 10.1103/PhysRevB.82.155446
PG 9
WC Physics, Condensed Matter
SC Physics
GA 671GM
UT WOS:000283488600012
ER
PT J
AU Wang, JW
Auyeung, RCY
Kim, H
Charipar, NA
Pique, A
AF Wang, Jiwen
Auyeung, Raymond C. Y.
Kim, Heungsoo
Charipar, Nicholas A.
Pique, Alberto
TI Three-Dimensional Printing of Interconnects by Laser Direct-Write of
Silver Nanopastes
SO ADVANCED MATERIALS
LA English
DT Article
ID ALUMINA SUSPENSIONS; PERIODIC STRUCTURES; FABRICATION; ELECTRODES;
RHEOLOGY; FILM
C1 [Wang, Jiwen; Auyeung, Raymond C. Y.; Kim, Heungsoo; Charipar, Nicholas A.; Pique, Alberto] USN, Res Lab, Washington, DC 20375 USA.
RP Wang, JW (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM wangjiwen@gmail.com; pique@nrl.navy.mil
FU Office of Naval Research (ONR); National Research Council at Naval
Research Laboratory
FX This work was supported by Office of Naval Research (ONR). J.W.
performed the work while holding a National Research Council Research
Associateship Award at The Naval Research Laboratory.
NR 23
TC 62
Z9 64
U1 4
U2 55
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 OCT 25
PY 2010
VL 22
IS 40
BP 4462
EP 4466
DI 10.1002/adma.201001729
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 677OE
UT WOS:000284000900005
PM 20818617
ER
PT J
AU Highfill-McRoy, RM
Larson, GE
Booth-Kewley, S
Garland, CF
AF Highfill-McRoy, Robyn M.
Larson, Gerald E.
Booth-Kewley, Stephanie
Garland, Cedric F.
TI Psychiatric diagnoses and punishment for misconduct: the effects of PTSD
in combat-deployed Marines
SO BMC PSYCHIATRY
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; MENTAL-HEALTH PROBLEMS; VIETNAM VETERANS;
INTERPERSONAL VIOLENCE; ANTISOCIAL-BEHAVIOR; TRAUMATIC STRESS; SUBSTANCE
USE; WAR; RISK; EXPOSURE
AB Background: Research on Vietnam veterans suggests an association between psychological problems, including posttraumatic stress disorder (PTSD), and misconduct; however, this has rarely been studied in veterans of Operation Iraqi Freedom or Operation Enduring Freedom. The objective of this study was to investigate whether psychological problems were associated with three types of misconduct outcomes (demotions, drug-related discharges, and punitive discharges.)
Methods: A population-based study was conducted on all U. S. Marines who entered the military between October 1, 2001, and September 30, 2006, and deployed outside of the United States before the end of the study period, September 30, 2007. Demographic, psychiatric, deployment, and personnel information was collected from military records. Cox proportional hazards regression analysis was conducted to investigate associations between the independent variables and the three types of misconduct in war-deployed (n = 77 998) and non-war-deployed (n = 13 944) Marines.
Results: Marines in both the war-deployed and non-war-deployed cohorts with a non-PTSD psychiatric diagnosis had an elevated risk for all three misconduct outcomes (hazard ratios ranged from 3.93 to 5.65). PTSD was a significant predictor of drug-related discharges in both the war-deployed and non-war-deployed cohorts. In the war-deployed cohort only, a specific diagnosis of PTSD was associated with an increased risk for both demotions (hazard ratio, 8.60; 95% confidence interval, 6.95 to 10.64) and punitive discharges (HR, 11.06; 95% CI, 8.06 to 15.16).
Conclusions: These results provide evidence of an association between PTSD and behavior problems in Marines deployed to war. Moreover, because misconduct can lead to disqualification for some Veterans Administration benefits, personnel with the most serious manifestations of PTSD may face additional barriers to care.
C1 [Highfill-McRoy, Robyn M.; Larson, Gerald E.; Booth-Kewley, Stephanie; Garland, Cedric F.] USN, Behav Sci & Epidemiol Program, Hlth Res Ctr, San Diego, CA 92152 USA.
[Garland, Cedric F.] Univ Calif San Diego, Dept Family & Prevent Med, San Diego, CA 92103 USA.
[Garland, Cedric F.] Univ Calif San Diego, Moores UCSD Canc Ctr, San Diego, CA 92103 USA.
RP Highfill-McRoy, RM (reprint author), USN, Behav Sci & Epidemiol Program, Hlth Res Ctr, San Diego, CA 92152 USA.
EM Robyn.McRoy@med.navy.mil
NR 44
TC 6
Z9 6
U1 0
U2 7
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-244X
J9 BMC PSYCHIATRY
JI BMC Psychiatry
PD OCT 25
PY 2010
VL 10
AR 88
DI 10.1186/1471-244X-10-88
PG 8
WC Psychiatry
SC Psychiatry
GA 682UZ
UT WOS:000284429800001
PM 20974004
ER
PT J
AU Kessler, DA
Oran, ES
Kaplan, CR
AF Kessler, David A.
Oran, Elaine S.
Kaplan, Carolyn R.
TI Towards the development of a multiscale, multiphysics method for the
simulation of rarefied gas flows
SO JOURNAL OF FLUID MECHANICS
LA English
DT Article
DE computational methods; gas dynamics; kinetic theory
ID MONTE-CARLO METHOD; NONLINEAR BOLTZMANN-EQUATION; NAVIER-STOKES
EQUATIONS; SMOOTH TRANSITION MODEL; COUPLING BOLTZMANN;
NUMERICAL-SOLUTION; MICROCHANNEL FLOW; KINETIC-THEORY; SCHEMES;
HYDRODYNAMICS
AB We introduce a coupled multiscale, multiphysics method (CM(3)) for solving for the behaviour of rarefied gas flows. The approach is to solve the kinetic equation for rarefied gases (the Boltzmann equation) over a very short interval of time in order to obtain accurate estimates of the components of the stress tensor and heat-flux vector. These estimates are used to close the conservation laws for mass, momentum and energy, which are subsequently used to advance continuum-level flow variables forward in time. After a finite time interval, the Boltzmann equation is solved again for the new continuum field, and the cycle is repeated. The target applications for this type of method are transition-regime gas flows for which standard continuum models (e.g. Navier-Stokes equations) cannot be used, but solution of Boltzmann's equation is prohibitively expensive. The use of molecular-level data to close the conservation laws significantly extends the range of applicability of the continuum conservation laws. In this study, the CM(3) is used to perform two proof-of-principle calculations: a low-speed Rayleigh flow and a thermal Fourier flow. Velocity, temperature, shear-stress and heat-flux profiles compare well with direct-simulation Monte Carlo solutions for various Knudsen numbers ranging from the near-continuum regime to the transition regime. We discuss algorithmic problems and the solutions necessary to implement the CM(3), building upon the conceptual framework of the heterogeneous multiscale methods.
C1 [Kessler, David A.; Oran, Elaine S.; Kaplan, Carolyn R.] USN, Computat Phys & Fluid Dynam Lab, Res Lab, Washington, DC 20375 USA.
RP Kessler, DA (reprint author), USN, Computat Phys & Fluid Dynam Lab, Res Lab, Washington, DC 20375 USA.
EM dakessle@lcp.nrl.navy.mil
FU National Academies of Science; Naval Research Laboratory through the
Office of Naval Research
FX We would like to thank the National Academies of Science Postdoctoral
Research Associateship Program and the Naval Research Laboratory through
the Office of Naval Research for funding this work. Computing resources
were provided by the DoD High Performance Computing Modernization
Program. We would also like to thank Dr J. Lui for assistance with
implementing LCPFCT, Dr D. Mott for valuable insight regarding DSMC
boundary conditions and Dr A. Staples for general information regarding
multiscale methods.
NR 76
TC 10
Z9 10
U1 1
U2 6
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-1120
J9 J FLUID MECH
JI J. Fluid Mech.
PD OCT 25
PY 2010
VL 661
BP 262
EP 293
DI 10.1017/S0022112010002934
PG 32
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 677AC
UT WOS:000283960300012
ER
PT J
AU Kim, BJ
Mastro, MA
Hite, J
Eddy, CR
Kim, J
AF Kim, Byung-Jae
Mastro, Michael A.
Hite, Jennifer
Eddy, Charles R., Jr.
Kim, Jihyun
TI Transparent conductive graphene electrode in GaN-based ultra-violet
light emitting diodes
SO OPTICS EXPRESS
LA English
DT Article
ID LAYER GRAPHENE; FILMS
AB We report a graphene-based transparent conductive electrode for use in ultraviolet (UV) GaN light emitting diodes (LEDs). A few-layer graphene (FLG) layer was mechanically deposited. UV light at a peak wavelength of 368nm was successfully emitted by the FLG layer as transparent contact to p-GaN. The emission of UV light through the thin graphene layer was brighter than through the thick graphene layer. The thickness of the graphene layer was characterized by micro-Raman spectroscopy. Our results indicate that this novel graphene-based transparent conductive electrode holds great promise for use in UV optoelectronics for which conventional ITO is less transparent than graphene. (C) 2010 Optical Society of America
C1 [Kim, Byung-Jae; Kim, Jihyun] Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea.
[Mastro, Michael A.; Hite, Jennifer; Eddy, Charles R., Jr.] USN, Res Lab, Washington, DC 20375 USA.
RP Kim, BJ (reprint author), Korea Univ, Dept Chem & Biol Engn, Seoul 136713, South Korea.
EM hyunhyun7@korea.ac.kr
RI Kim, Jihyun/F-6940-2013; Hite, Jennifer/L-5637-2015
OI Hite, Jennifer/0000-0002-4090-0826
FU Minstry of Education, Science and Technology [R0903962, 2010-0008242];
Office of Naval Research
FX The research at Korea University was supported by New & Renewable Energy
R&D program (R0903962) under the Ministry of Knowledge Economy, Basic
Science Research Program through the National Research Foundation of
Korea (NRF) funded by the Minstry of Education, Science and
Technology(2010-0008242) and BK21 program. Research at the US Naval
Research Lab was supported by the Office of Naval Research.
NR 17
TC 25
Z9 27
U1 1
U2 44
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 OCT 25
PY 2010
VL 18
IS 22
BP 23030
EP 23034
DI 10.1364/OE.18.023030
PG 5
WC Optics
SC Optics
GA 672CK
UT WOS:000283560400043
PM 21164643
ER
PT J
AU Siskind, DE
Eckermann, SD
McCormack, JP
Coy, L
Hoppel, KW
Baker, NL
AF Siskind, David. E.
Eckermann, Stephen. D.
McCormack, John P.
Coy, Larry
Hoppel, Karl W.
Baker, Nancy L.
TI Case studies of the mesospheric response to recent minor, major, and
extended stratospheric warmings
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID STATIONARY PLANETARY-WAVES; INTERNAL GRAVITY-WAVES; GENERAL-CIRCULATION;
MIDDLE ATMOSPHERE; DOWNWARD CONTROL; WEATHER REGIMES; WINTER; MODEL;
WINDS; TEMPERATURES
AB We have studied the mesospheric response to two recent stratospheric warmings by performing short-term forecasts at medium (1.5 degrees) and high (0.5 degrees) spatial resolution under different gravity wave drag (GWD) scenarios. We validated our models with our high-altitude analysis that extends from 0 to 90 km. For the minor warming of January 2008, reduced upper-level orographic GWD weakened the downward residual circulation and cooled the mesosphere. Parameterized nonorographic GWD increased the simulated mesospheric cooling. For the prolonged major warming of 2006, heavily attenuated orographic GWD led to pronounced cooling near 50 km. During the extended phase of this event, an unusually strong westerly polar vortex reformed in the lower mesosphere, which allowed westward propagating nonorographic gravity waves to reach the mesosphere and break, with net westward accelerations of over 50 ms(-1) d(-1). This, in turn, forced a strong residual circulation, yielding descent velocities over 2 cm s(-1) between 65 degrees N and 85 degrees N, consistent with previous reports of enhanced downward transport of trace constituents. The resulting adiabatic heating, as evidenced by the unusually vertically displaced stratopause at 80 km, is likely a direct consequence of this enhanced gravity wave driven descent. High-resolution simulations without parameterized GWD were closer to the analysis than medium-resolution simulations with parameterized orographic GWD only, but still did not fully simulate the mesospheric thermal response. Specifically, the 80 km temperature enhancement was still underestimated in these simulations. This suggests that higher spatial resolution is needed to adequately resolve extratropical gravity wave momentum fluxes.
C1 [Siskind, David. E.; Eckermann, Stephen. D.; McCormack, John P.; Coy, Larry] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Baker, Nancy L.] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Hoppel, Karl W.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Siskind, DE (reprint author), USN, Res Lab, Div Space Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.siskind@nrl.navy.mil
OI McCormack, John/0000-0002-3674-0508
FU Office of Naval Research; NASA [NNH09AK64I]; Defense Threat Reduction
Agency
FX This work was supported by grants from the Office of Naval Research,
NASA's Heliophysics Guest Investigator Program (grant NNH09AK64I), the
Defense Threat Reduction Agency, and a grant of computer time from the
DoD Supercomputing Resource Centers. Helpful discussions with Fabrizio
Sassi are appreciated.
NR 61
TC 58
Z9 58
U1 4
U2 14
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 OCT 23
PY 2010
VL 115
AR D00N03
DI 10.1029/2010JD014114
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 671XH
UT WOS:000283546600007
ER
PT J
AU Englert, CR
Stevens, MH
Siskind, DE
Harlander, JM
Roesler, FL
AF Englert, Christoph R.
Stevens, Michael H.
Siskind, David E.
Harlander, John M.
Roesler, Frederick L.
TI Spatial Heterodyne Imager for Mesospheric Radicals on STPSat-1
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SPACE-SHUTTLE EXHAUST; OH OBSERVATIONS; SPECTROSCOPY; SHIMMER; CLOUDS;
OZONE; MODEL
AB The Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER) was a high-resolution, near ultraviolet spectrometer that imaged the Earth's limb for 2.5 years between March 2007 and October 2009. The instrument used the Spatial Heterodyne Spectroscopy technique for the first time on a satellite and successfully demonstrated its capabilities. SHIMMER measured the solar resonance fluorescence of the OH A(2)Sigma(+)-X-2 Pi (0, 0) band around 309 nm, which allows the retrieval of mesospheric OH density profiles. It also measured the Rayleigh scattered background from the clear atmosphere and solar scattering from polar mesospheric cloud particles. We present details on the SHIMMER mission, the payload design, and the data analysis. A comparison between SHIMMER and concurrent Microwave Limb Sounder OH data shows good agreement between 60 and 90 km altitude for several latitudes and seasons. We also find good agreement of the SHIMMER OH densities and standard photochemical model calculations between 60 and 80 km. We find no evidence of a 25%-35% mesospheric OH deficit, previously reported using Middle Atmosphere High-Resolution Spectrograph Investigation (MAHRSI) OH data. However, independent analysis of Rayleigh scattered background signals observed by SHIMMER and MAHRSI under similar lighting conditions revealed that MAHRSI radiances are systematically smaller than SHIMMER radiances by 24%. Although this difference is well outside of the combined uncertainties for both experiments, the agreement of SHIMMER OH with Microwave Limb Sounder OH and standard photochemistry results, together with our Rayleigh scattering comparison, suggests an unidentified MAHRSI calibration problem that effectively eliminates the mesospheric OH deficit reported using MAHRSI observations.
C1 [Englert, Christoph R.; Stevens, Michael H.; Siskind, David E.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Harlander, John M.] St Cloud State Univ, Dept Phys Astron & Engn, St Cloud, MN 56301 USA.
[Roesler, Frederick L.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
RP Englert, CR (reprint author), USN, Res Lab, Div Space Sci, 4555 Overlook Ave SW,Code 7640, Washington, DC 20375 USA.
EM christoph.englert@nrl.navy.mil
OI Stevens, Michael/0000-0003-1082-8955; Englert,
Christoph/0000-0002-2145-6168
FU Office of Naval Research (ONR); National Aeronautics and Space
Administration (NASA) Heliophysics Division
FX This work was supported by the Office of Naval Research (ONR) and the
National Aeronautics and Space Administration (NASA) Heliophysics
Division. SHIMMER is a joint program between the Naval Research
Laboratory and the DoD Space Test Program. The authors thank Robert
(Bob) R. Conway, Joel G. Cardon, Ronen Feldman, John F. Moser, W. Layne
Marlin, Andrew N. Straatveit, Charles M. Brown, Michael A. Carr, Andrew
W. Stephan, and Robert R. Meier for their contributions to the SHIMMER
project, Christian von Savigny for providing the independent pointing
validation using the TRUE code, Shuhui Wang for her help with the MLS
data, and Andrew J. Kochenash for his assistance with the photochemical
model. We also thank the teams of AeroAstro, Tiger Innovations, Naval
Center for Space Technology, DoD Space Test Program, and Aerospace
Corporation for their contributions.
NR 41
TC 15
Z9 19
U1 1
U2 8
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 OCT 22
PY 2010
VL 115
AR D20306
DI 10.1029/2010JD014398
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 671XG
UT WOS:000283546500006
ER
PT J
AU Mezic, I
Loire, S
Fonoberov, VA
Hogan, P
AF Mezic, Igor
Loire, S.
Fonoberov, Vladimir A.
Hogan, P.
TI A New Mixing Diagnostic and Gulf Oil Spill Movement
SO SCIENCE
LA English
DT Article
ID LAGRANGIAN COHERENT STRUCTURES; APERIODIC FLOWS; FLUID-FLOWS;
2-DIMENSIONAL TURBULENCE
AB Chaotic advection has served as the paradigm for mixing in fluid flows with simple time dependence. Its skeletal structure is based on analysis of invariant attracting and repelling manifolds in fluid flows. Here we develop a finite-time theory for two-dimensional incompressible fluid flows with arbitrary time dependence and introduce a new mixing diagnostic based on it. Besides stretching events around attracting and repelling manifolds, this allows us to detect hyperbolic mixing zones. We used the new diagnostic to forecast the spatial location and timing of oil washing ashore in Plaquemines Parish and Grand Isle, Louisiana, and Pensacola, Florida, in May 2010 and the flow of oil toward Panama City Beach, Florida, in June 2010.
C1 [Mezic, Igor; Loire, S.] Univ Calif Santa Barbara, Ctr Control Dynam Syst & Computat, Santa Barbara, CA 93106 USA.
[Mezic, Igor; Loire, S.] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA.
[Fonoberov, Vladimir A.] Aimdyn, Santa Barbara, CA 93101 USA.
[Hogan, P.] USN, Res Lab, Stennis Space Ctr, Stennis Space Ctr, MS 39529 USA.
RP Mezic, I (reprint author), Univ Calif Santa Barbara, Ctr Control Dynam Syst & Computat, Santa Barbara, CA 93106 USA.
EM mezic@engineering.ucsb.edu
FU Aimdyn; Naval Research Laboratory in Stennis, MS
FX We thank B. Lipphardt of the University of Delaware, whose initial
calculations showed the potential of the concepts described here in the
context of the Gulf oil spill; and G. Haller for useful comments. The
work of I.M., S.L., and V.A.F. was supported by Aimdyn. I.M. and S.L.
were consultants for Aimdyn. P.H.'s work was supported by the Naval
Research Laboratory in Stennis, MS. We are thankful to the leadership of
the U.S. Coast Guard at the Cocodrie, Louisiana, site for their interest
in this work.
NR 24
TC 85
Z9 87
U1 1
U2 31
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD OCT 22
PY 2010
VL 330
IS 6003
BP 486
EP 489
DI 10.1126/science.1194607
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 669EL
UT WOS:000283329100034
PM 20813922
ER
PT J
AU Littman, AJ
Boyko, EJ
Jacobson, IG
Horton, J
Gackstetter, GD
Smith, B
Hooper, T
Wells, TS
Amoroso, PJ
Smith, TC
AF Littman, Alyson J.
Boyko, Edward J.
Jacobson, Isabel G.
Horton, Jaime
Gackstetter, Gary D.
Smith, Besa
Hooper, Tomoko
Wells, Timothy S.
Amoroso, Paul J.
Smith, Tyler C.
CA Millennium Cohort Study
TI Assessing nonresponse bias at follow-up in a large prospective cohort of
relatively young and mobile military service members
SO BMC MEDICAL RESEARCH METHODOLOGY
LA English
DT Article
ID MILLENNIUM COHORT; US MILITARY; ATTRITION; HEALTH; DEPLOYMENT;
POPULATION; PREDICTORS; VACCINATION; DEPRESSION; PREVALENCE
AB Background: Nonresponse bias in a longitudinal study could affect the magnitude and direction of measures of association. We identified sociodemographic, behavioral, military, and health-related predictors of response to the first follow-up questionnaire in a large military cohort and assessed the extent to which nonresponse biased measures of association.
Methods: Data are from the baseline and first follow-up survey of the Millennium Cohort Study. Seventy-six thousand, seven hundred and seventy-five eligible individuals completed the baseline survey and were presumed alive at the time of follow-up; of these, 54,960 (71.6%) completed the first follow-up survey. Logistic regression models were used to calculate inverse probability weights using propensity scores.
Results: Characteristics associated with a greater probability of response included female gender, older age, higher education level, officer rank, active-duty status, and a self-reported history of military exposures. Ever smokers, those with a history of chronic alcohol consumption or a major depressive disorder, and those separated from the military at follow-up had a lower probability of response. Nonresponse to the follow-up questionnaire did not result in appreciable bias; bias was greatest in subgroups with small numbers.
Conclusions: These findings suggest that prospective analyses from this cohort are not substantially biased by non-response at the first follow-up assessment.
C1 [Littman, Alyson J.; Boyko, Edward J.] Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Littman, Alyson J.] Univ Washington, Dept Epidemiol, Seattle, WA 98195 USA.
[Gackstetter, Gary D.] Analyt Serv INC, Arlington, VA USA.
[Jacobson, Isabel G.; Horton, Jaime; Smith, Besa; Wells, Timothy S.; Smith, Tyler C.] USN, Dept Deployment Hlth Res, Hlth Res Ctr, San Diego, CA 92152 USA.
[Hooper, Tomoko] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Amoroso, Paul J.] Madigan Army Med Ctr, Ft Lewis, WA USA.
RP Littman, AJ (reprint author), Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
EM alyson@u.washington.edu
FU U.S. Department of Veterans Affairs, Office of Research and Development;
Department of Defense [60002]
FX This material is based upon work supported in part by the U.S.
Department of Veterans Affairs, Office of Research and Development,
Cooperative Studies Program. This work represents report 09.34,
supported by the Department of Defense, under work unit no. 60002. The
views expressed in this article are those of the authors and do not
necessarily reflect the position or policy of the Department of Veterans
Affairs, Department of the Navy, Department of the Army, Department of
the Air Force, Department of Defense, or the US Government. This
research has been conducted in compliance with all applicable federal
regulations governing the protection of human subjects in research
(Protocol NHRC.2000.007).
NR 28
TC 48
Z9 48
U1 1
U2 7
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2288
J9 BMC MED RES METHODOL
JI BMC Med. Res. Methodol.
PD OCT 21
PY 2010
VL 10
AR 99
DI 10.1186/1471-2288-10-99
PG 11
WC Health Care Sciences & Services
SC Health Care Sciences & Services
GA 728ZU
UT WOS:000287914500001
PM 20964861
ER
PT J
AU Landt, H
Cheung, CC
Healey, SE
AF Landt, Hermine
Cheung, Chi C.
Healey, Stephen E.
TI The optical spectra of X-shaped radio galaxies
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE galaxies: active; galaxies: nuclei
ID ACTIVE GALACTIC NUCLEI; BL LACERTAE OBJECTS; BLACK-HOLE SYSTEM; COMPLETE
SAMPLE; SUPERMASSIVE BINARY; SOURCE CANDIDATES; H-BETA; EMISSION;
CHANDRA; SPECTROPHOTOMETRY
AB X-shaped radio galaxies are defined by their peculiar large-scale radio morphology. In addition to the classical double-lobed structure they have a pair of low-luminosity wings that straddles the nucleus at almost right angles to the active lobes, thus giving the impression of an 'X'. In this paper we study for the first time the optical spectral properties of this object class using a large sample (similar to 50 sources). We find that the X-shaped radio population is composed roughly equally of sources with weak and strong emission-line spectra, which makes them, in combination with the well-known fact that they preferentially have radio powers intermediate between those of Fanaroff-Riley type I (FR I) and type II (FR II) radio galaxies, the archetypal transition population. We do not find evidence in support of the proposition that the X shape is the result of a recent merger: X-shaped radio sources do not have unusually broad emission lines, their nuclear environments are in general not dusty and their host galaxies do not show signs of enhanced star formation. Instead, we observe that the nuclear regions of X-shaped radio sources have relatively high temperatures. This finding favours models which propose that the X shape is the result of an overpressured environment.
C1 [Landt, Hermine] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia.
[Cheung, Chi C.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cheung, Chi C.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Healey, Stephen E.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
RP Landt, H (reprint author), Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia.
EM hlandt@unimelb.edu.au
NR 54
TC 13
Z9 13
U1 0
U2 2
PU WILEY-BLACKWELL
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 OCT 21
PY 2010
VL 408
IS 2
BP 1103
EP 1112
DI 10.1111/j.1365-2966.2010.17183.x
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 660KA
UT WOS:000282639100036
ER
PT J
AU Surls, J
Nazarov-Stoica, C
Kehl, M
Casares, S
Brumeanu, TD
AF Surls, Jacqueline
Nazarov-Stoica, Cristina
Kehl, Margaret
Casares, Sofia
Brumeanu, Teodor-D.
TI Differential effect of CD4(+)Foxp3(+) T-regulatory cells on the B and T
helper cell responses to influenza virus vaccination
SO VACCINE
LA English
DT Article
DE Influenza virus; Foxp3(+) T-regulatory cells; Vaccination; Immune
responses
ID IMMUNOLOGICAL SELF-TOLERANCE; HUMAN-IMMUNODEFICIENCY-VIRUS; DENDRITIC
CELLS; MEMORY CELLS; CLASS-I; CD4(+); INFECTION; RECEPTOR; ANTIGEN;
SUPPRESSION
AB The T-regulatory (T-reg) cells restrict the T-cell functions in various viral infections including influenza infection. However little is known about the effect of T-regs in influenza vaccination. Herein, we found that immunization of BALB/c mice with a prototype of UV-inactivated influenza PR8/A/34 virus vaccine expanded the CD4(+)Foxp3(+) T-reg pool and fostered the development of virus-specific CD4(+)Foxp3(+) T-reg cells. Increasing the size of Foxp3(+) T-reg pool did not alter the primary PR8-specific B-cell response, but it did suppress the primary and memory PR8-specific T helper responses induced by vaccination. In contrast, the vaccination-induced T helper cell response was augmented in the absence of CD4(+)Foxp3(+) T-reg cells. Since CD4 T helper cells contribute to anti-influenza protection, therapeutic "quenching" of T-reg function prior to vaccination may enhance the efficacy of influenza vaccination. Published by Elsevier Ltd.
C1 [Surls, Jacqueline; Nazarov-Stoica, Cristina; Kehl, Margaret; Casares, Sofia; Brumeanu, Teodor-D.] Uniformed Serv Univ Hlth Sci, Dept Med, Div Immunol, Bethesda, MD 20814 USA.
[Casares, Sofia] USN, Med Res Ctr, Infect Dis Directorate, Silver Spring, MD 20910 USA.
RP Brumeanu, TD (reprint author), Uniformed Serv Univ Hlth Sci, Dept Med, Div Immunol, 4301 Jones Bridge Rd,A3074, Bethesda, MD 20814 USA.
EM tbrumeanu@usuhs.edu
FU Uniformed Services University of the Health [RO83U-07/09]
FX This work was supported by a grant from the Uniformed Services
University of the Health (RO83U-07/09) to T-D.B. We thank Mrs Karen
Wolcott and Kateryna Lund from USUHS Biomedical Instrumentation Center
for valuable assistance with FACS and Luminex analyses, and Dr.
Constantin A Bona for critical comments on the manuscript.
NR 65
TC 15
Z9 17
U1 0
U2 0
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
J9 VACCINE
JI Vaccine
PD OCT 21
PY 2010
VL 28
IS 45
BP 7319
EP 7330
DI 10.1016/j.vaccine.2010.08.074
PG 12
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA 677WY
UT WOS:000284026600013
PM 20832492
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Dermer, CD
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dumora, D
Favuzzi, C
Funk, S
Fusco, P
Gargano, F
Gehrels, N
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Katsuta, J
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ripken, J
Roth, M
Sadrozinski, HF
Sander, A
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spinelli, P
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Dermer, C. D.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dumora, D.
Favuzzi, C.
Funk, S.
Fusco, P.
Gargano, F.
Gehrels, N.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M-H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Katsuta, J.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S-H.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ripken, J.
Roth, M.
Sadrozinski, H. FW.
Sander, A.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI FERMI-LAT STUDY OF GAMMA-RAY EMISSION IN THE DIRECTION OF SUPERNOVA
REMNANT W49B
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; ISM: individual objects (W49B); radiation
mechanisms: non-thermal
ID LARGE-AREA TELESCOPE; X-RAY; PARTICLE-ACCELERATION; RX J1713.7-3946;
COSMIC-RAYS; CATALOG; RADIO; DISCOVERY; PULSARS; ORIGIN
AB We present an analysis of the gamma-ray data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope in the direction of SNR W49B (G43.3-0.2). A bright unresolved gamma-ray source detected at a significance of 38 sigma is found to coincide with SNR W49B. The energy spectrum in the 0.2-200 GeV range gradually steepens toward high energies. The luminosity is estimated to be 1.5 x 10(36) (D/8 kpc)(2) erg s(-1) in this energy range. There is no indication that the gamma-ray emission comes from a pulsar. Assuming that the supernova remnant (SNR) shell is the site of gamma-ray production, the observed spectrum can be explained either by the decay of neutral pi mesons produced through the proton-proton collisions or by electron bremsstrahlung. The calculated energy density of relativistic particles responsible for the LAT flux is estimated to be remarkably large, U-e,U-p > 10(4) eV cm(-3), for either gamma-ray production mechanism.
C1 [Abdo, A. A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S-H.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Reimer, A.; Reimer, O.; Tajima, H.; Tanaka, T.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S-H.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Reimer, A.; Reimer, O.; Tajima, H.; Tanaka, T.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CEA IRFU, CNRS,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ & Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Horan, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Caliandro, G. A.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe; Gehrels, N.; Harding, A. K.; Hays, E.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Cohen-Tanugi, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Conrad, J.; Ripken, J.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Ripken, J.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Dumora, D.; Grondin, M-H.; Guillemot, L.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M-H.; Guillemot, L.; Lemoine-Goumard, M.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, UMR 5797, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Hanabata, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Jackson, M. S.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Katsuta, J.; Okumura, A.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Kanagawa 2298510, Japan.
[Katsuta, J.] Univ Tokyo, Dept Phys, Grad Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan.
[Knoedlseder, J.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Sadrozinski, H. FW.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Sadrozinski, H. FW.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM katsuta@astro.isas.jaxa.jp; htajima@slac.stanford.edu;
Taka.Tanaka@stanford.edu; uchiyama@slac.stanford.edu
RI Johannesson, Gudlaugur/O-8741-2015; Gargano, Fabio/O-8934-2015;
Moskalenko, Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
Harding, Alice/D-3160-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Rando, Riccardo/M-7179-2013;
Hays, Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Gehrels,
Neil/D-2971-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Funk, Stefan/B-7629-2015; Loparco,
Francesco/O-8847-2015
OI Giroletti, Marcello/0000-0002-8657-8852; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726;
Johannesson, Gudlaugur/0000-0003-1458-7036; Gargano,
Fabio/0000-0002-5055-6395; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214; SPINELLI,
Paolo/0000-0001-6688-8864; Rando, Riccardo/0000-0001-6992-818X; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385;
lubrano, pasquale/0000-0003-0221-4806; Funk, Stefan/0000-0002-2012-0080;
Loparco, Francesco/0000-0002-1173-5673
FU K. A. Wallenberg Foundation; International Doctorate on Astroparticle
Physics (IDAPP) program; Istituto Nazionale di Astrofisica in Italy;
Centre National d'Etudes Spatiales in France
FX Royal Swedish Academy of Sciences Research Fellow, funded by a grant
from the K. A. Wallenberg Foundation.; Partially supported by the
International Doctorate on Astroparticle Physics (IDAPP) program.;
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 29
TC 68
Z9 68
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD OCT 20
PY 2010
VL 722
IS 2
BP 1303
EP 1311
DI 10.1088/0004-637X/722/2/1303
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678LK
UT WOS:000284075400026
ER
PT J
AU Vourlidas, A
Howard, RA
Esfandiari, E
Patsourakos, S
Yashiro, S
Michalek, G
AF Vourlidas, A.
Howard, R. A.
Esfandiari, E.
Patsourakos, S.
Yashiro, S.
Michalek, G.
TI COMPREHENSIVE ANALYSIS OF CORONAL MASS EJECTION MASS AND ENERGY
PROPERTIES OVER A FULL SOLAR CYCLE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE methods: statistical; Sun: activity; Sun: corona; Sun: coronal mass
ejections (CMEs)
ID SPACED DATA; LASCO; BRIGHTNESS; ENERGETICS; INTERPLANETARY;
DISTRIBUTIONS; CALIBRATION; PARAMETERS; DENSITY; SPEEDS
AB The LASCO coronagraphs, in continuous operation since 1995, have observed the evolution of the solar corona and coronal mass ejections (CMEs) over a full solar cycle with high-quality images and regular cadence. This is the first time that such a data set becomes available and constitutes a unique resource for the study of CMEs. In this paper, we present a comprehensive investigation of the solar cycle dependence on the CME mass and energy over a full solar cycle (1996-2009) including the first in-depth discussion of the mass and energy analysis methods and their associated errors. Our analysis provides several results worthy of further studies. It demonstrates the possible existence of two event classes: "normal" CMEs reaching constant mass for > 10 R(circle dot) and "pseudo"-CMEs which disappear in the C3 field of view. It shows that the mass and energy properties of CME reach constant levels and therefore should be measured only above similar to 10R(circle dot). The mass density (g/R(circle dot)(2)) of CMEs varies relatively little (< order of magnitude) suggesting that the majority of the mass originates from a small range in coronal heights. We find a sudden reduction in the CME mass in mid-2003 which may be related to a change in the electron content of the large-scale corona and we uncover the presence of a 6 month periodicity in the ejected mass from 2003 onward.
C1 [Esfandiari, E.] Adnet Syst Inc, Rockville, MD USA.
[Patsourakos, S.] Univ Ioannina, Dept Phys, Sect Astrogeophys, GR-45110 Ioannina, Greece.
[Yashiro, S.] Catholic Univ Amer, Ctr Solar & Space Weather, Washington, DC 20064 USA.
[Michalek, G.] Jagiellonian Univ, Astron Observ, Krakow, Poland.
RP Vourlidas, A (reprint author), USN, Res Lab, Code 7663, Washington, DC 20375 USA.
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
NR 50
TC 79
Z9 80
U1 1
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 OCT 20
PY 2010
VL 722
IS 2
BP 1522
EP 1538
DI 10.1088/0004-637X/722/2/1522
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678LK
UT WOS:000284075400042
ER
PT J
AU Liu, Y
Thernisien, A
Luhmann, JG
Vourlidas, A
Davies, JA
Lin, RP
Bale, SD
AF Liu, Ying
Thernisien, Arnaud
Luhmann, Janet G.
Vourlidas, Angelos
Davies, Jackie A.
Lin, Robert P.
Bale, Stuart D.
TI RECONSTRUCTING CORONAL MASS EJECTIONS WITH COORDINATED IMAGING AND IN
SITU OBSERVATIONS: GLOBAL STRUCTURE, KINEMATICS, AND IMPLICATIONS FOR
SPACE WEATHER FORECASTING
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE shock waves; solar-terrestrial relations; solar wind; Sun: coronal mass
ejections (CMEs)
ID INTERPLANETARY MAGNETIC-FIELD; SOLAR-WIND; EARTH; SHOCK; SUN;
HELIOSPHERE; MISSION; SECCHI; VIEW; CME
AB We reconstruct the global structure and kinematics of coronal mass ejections (CMEs) using coordinated imaging and in situ observations from multiple vantage points. A forward modeling technique, which assumes a rope-like morphology for CMEs, is used to determine the global structure (including orientation and propagation direction) from coronagraph observations. We reconstruct the corresponding structure from in situ measurements at 1 AU with the Grad-Shafranov method, which gives the flux-rope orientation, cross section, and a rough knowledge of the propagation direction. CME kinematics (propagation direction and radial distance) during the transit from the Sun to 1 AU are studied with a geometric triangulation technique, which provides an unambiguous association between solar observations and in situ signatures; a track fitting approach is invoked when data are available from only one spacecraft. We show how the results obtained from imaging and in situ data can be compared by applying these methods to the 2007 November 14-16 and 2008 December 12 CMEs. This merged imaging and in situ study shows important consequences and implications for CME research as well as space weather forecasting: (1) CME propagation directions can be determined to a relatively good precision as shown by the consistency between different methods; (2) the geometric triangulation technique shows a promising capability to link solar observations with corresponding in situ signatures at 1 AU and to predict CME arrival at the Earth; (3) the flux rope within CMEs, which has the most hazardous southward magnetic field, cannot be imaged at large distances due to expansion; (4) the flux-rope orientation derived from in situ measurements at 1 AU may have a large deviation from that determined by coronagraph image modeling; and (5) we find, for the first time, that CMEs undergo a westward migration with respect to the Sun-Earth line at their acceleration phase, which we suggest is a universal feature produced by the magnetic field connecting the Sun and ejecta. The importance of having dedicated spacecraft at L4 and L5, which are well situated for the triangulation concept, is also discussed based on the results.
C1 [Liu, Ying; Luhmann, Janet G.; Lin, Robert P.; Bale, Stuart D.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Thernisien, Arnaud] Univ Space Res Assoc, Columbia, MD 21044 USA.
[Vourlidas, Angelos] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Davies, Jackie A.] Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England.
[Lin, Robert P.] Kyung Hee Univ, Sch Space Res, Yongin 446701, Gyeonggi, South Korea.
RP Liu, Y (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
EM liuxying@ssl.berkeley.edu
RI Bale, Stuart/E-7533-2011; Vourlidas, Angelos/C-8231-2009;
OI Bale, Stuart/0000-0002-1989-3596; Vourlidas,
Angelos/0000-0002-8164-5948; Liu, Ying/0000-0002-3483-5909
FU STEREO project [NAS5-03131]; KMEST [R31-10016]
FX The research was supported by the STEREO project under grant NAS5-03131.
Y. Liu thanks N. Lugaz of the University of Hawaii for helpful
discussion. SECCHI was developed by a consortium of NRL, LMSAL and GSFC
(US), RAL and Univ. Birmingham (UK), MPI (Germany), CSL (Belgium), and
IOTA and IAS (France). We also acknowledge the use of data from WIND,
ACE, and SOHO. R. Lin has been supported in part by the WCU grant (No.
R31-10016) funded by KMEST.
NR 44
TC 68
Z9 69
U1 1
U2 11
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 OCT 20
PY 2010
VL 722
IS 2
BP 1762
EP 1777
DI 10.1088/0004-637X/722/2/1762
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 678LK
UT WOS:000284075400063
ER
PT J
AU Taylor, GB
Zavala, R
AF Taylor, G. B.
Zavala, R.
TI ARE THERE ROTATION MEASURE GRADIENTS ACROSS ACTIVE GALACTIC NUCLEI JETS?
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE galaxies: active; galaxies: individual (3C 371, Mrk 501, J1613+342, BL
Lac); radio continuum: galaxies
ID HELICAL MAGNETIC-FIELDS; BL-LAC OBJECTS; FARADAY-ROTATION; RELATIVISTIC
JETS; RADIO-SOURCES; GAMMA-RAY; VLBI OBSERVATIONS; COMPLETE SAMPLE; 3C
371; PARSEC
AB We report on multi-frequency polarimetry very long baseline interferometry observations of active galactic nuclei using the Very Long Baseline Array. These observations are used to construct images of the Faraday rotation measure (RM) in J1613+342, Mrk 501, 3C 371, and BL Lac. Despite having resolved the jets in total intensity and polarization for three of these sources no RM gradients are found. This is in contrast to the large fraction of sources with RM gradients now claimed in the literature and invoked as evidence in support of helical magnetic fields. We propose objective criteria for establishing what constitutes an RM gradient. Furthermore, although we note the absence of simple, monotonic gradients, comparison with simulations could reveal systematic changes in the RM that may be masked by a varying jet orientation.
C1 [Zavala, R.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA.
[Taylor, G. B.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
RP Taylor, GB (reprint author), Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
EM gbtaylor@unm.edu
RI Zavala, Robert/D-7821-2011
OI Zavala, Robert/0000-0002-9402-2870
FU National Aeronautics and Space Administration
FX We thank the staff of the U. S. Naval Observatory Library and especially
U. Grothkopf, librarian at the European Southern Observatory, Garching,
for assistance in our literature search. The National Radio Astronomy
Observatory is operated by Associated Universities, Inc., under
cooperative agreement with the National Science Foundation. This
research has made use of data from the MOJAVE database that is
maintained by the MOJAVE team (Lister et al. 2009), NASA's Astrophysics
Data System Bibliographic Services and the NASA/IPAC Extragalactic
Database (NED), which is operated by the Jet Propulsion Laboratory,
California Institute of Technology, under contract with the National
Aeronautics and Space Administration.
NR 50
TC 24
Z9 24
U1 2
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD OCT 20
PY 2010
VL 722
IS 2
BP L183
EP L187
DI 10.1088/2041-8205/722/2/L183
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SI
UT WOS:000282909200012
ER
PT J
AU Pawlus, S
Paluch, M
Ziolo, J
Kolel-Veetil, MK
AF Pawlus, Sebastian
Paluch, Marian
Ziolo, Jerzy
Kolel-Veetil, Manoj K.
TI Anomalous behavior of the structural relaxation dispersion function of a
carborane-containing siloxane
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
ID GLASS-FORMING LIQUIDS; DIELECTRIC-RELAXATION; TEMPERATURE-DEPENDENCE;
POLY(PROPYLENE GLYCOL); COOPERATIVE RELAXATION; ALPHA-RELAXATION;
HIGH-PRESSURE; DYNAMICS; TRANSITION; VOLUME
AB Broadband dielectric spectroscopic investigations of a vinyl-terminated carboranylenesiloxane, VCS, were performed at ambient and elevated pressures. At a constant structural relaxation time, results show that the structural relaxation dispersion function of VCS narrows with both increasing pressure and temperature. This narrowing is substantial in the case of pressurization and, consequently, the breakdown of the temperature-pressure superposition rule is observed. The interpretation of this breakdown is presented.
C1 [Pawlus, Sebastian; Paluch, Marian; Ziolo, Jerzy] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland.
[Kolel-Veetil, Manoj K.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Pawlus, S (reprint author), Univ Silesia, Inst Phys, Uniwersytecka 4, PL-40007 Katowice, Poland.
FU European Economic Area Financial Mechanism; Office of Naval
Research/Naval Research Laboratory, Washington, DC, USA
FX S Pawlus acknowledges financial assistance from the FNP HOMING program
(2008) supported by the European Economic Area Financial Mechanism. M K
KolelVeetil thanks the Office of Naval Research/Naval Research
Laboratory, Washington, DC, USA, for its financial support of this work.
NR 37
TC 2
Z9 2
U1 0
U2 8
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 OCT 20
PY 2010
VL 22
IS 41
AR 415101
DI 10.1088/0953-8984/22/41/415101
PG 6
WC Physics, Condensed Matter
SC Physics
GA 655EJ
UT WOS:000282227500002
ER
PT J
AU Aluri, GS
Gowda, M
Mahadik, NA
Sundaresan, SG
Rao, MV
Schreifels, JA
Freitas, JA
Qadri, SB
Tian, YL
AF Aluri, Geetha S.
Gowda, Madhu
Mahadik, Nadeemullah A.
Sundaresan, Siddarth G.
Rao, Mulpuri V.
Schreifels, John A.
Freitas, J. A., Jr.
Qadri, S. B.
Tian, Y. -L.
TI Microwave annealing of Mg-implanted and in situ Be-doped GaN
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ION-IMPLANTATION; THIN-FILMS; TEMPERATURE; ACTIVATION; EPITAXY;
SEMICONDUCTORS; BERYLLIUM
AB An ultrafast microwave annealing method, different from conventional thermal annealing, is used to activate Mg-implants in GaN layer. The x-ray diffraction measurements indicated complete disappearance of the defect sublattice peak, introduced by the implantation process for single-energy Mg-implantation, when the annealing was performed at >= 1400 degrees C for 15 s. An increase in the intensity of Mg-acceptor related luminescence peak (at 3.26 eV) in the photoluminescence spectra confirms the Mg-acceptor activation in single-energy Mg-implanted GaN. In case of multiple-energy implantation, the implant generated defects persisted even after 1500 degrees C/15 s annealing, resulting in no net Mg-acceptor activation of the Mg-implant. The Mg-implant is relatively thermally stable and the sample surface roughness is 6 nm after 1500 degrees C/15 s annealing, using a 600 nm thick AlN cap. In situ Be-doped GaN films, after 1300 degrees C/5 s annealing have shown Be out-diffusion into the AlN layer and also in-diffusion toward the GaN/SiC interface. The in-diffusion and out-diffusion of the Be increased with increasing annealing temperature. In fact, after 1500 degrees C/5 s annealing, only a small fraction of in situ doped Be remained in the GaN layer, revealing the inadequateness of using Be-implantation for forming p-type doped layers in the GaN. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3493266]
C1 [Aluri, Geetha S.; Gowda, Madhu; Mahadik, Nadeemullah A.; Sundaresan, Siddarth G.; Rao, Mulpuri V.] George Mason Univ, Dept Elect & Comp Engn, Fairfax, VA 22030 USA.
[Schreifels, John A.] George Mason Univ, Dept Chem & Biochem, Fairfax, VA 22030 USA.
[Freitas, J. A., Jr.; Qadri, S. B.] USN, Res Lab, Washington, DC 20375 USA.
[Tian, Y. -L.] LT Technol, Fairfax, VA 22033 USA.
RP Aluri, GS (reprint author), George Mason Univ, Dept Elect & Comp Engn, Fairfax, VA 22030 USA.
EM rmulpuri@gmu.edu
RI Aluri, Geetha/D-3959-2012
FU National Science Foundation [ECS-0618948, ECCS-0742139]
FX We thank C. R. Eddy, Jr., S. C. Binari, S. Katzer, and J. Mittereder of
Naval Research Laboratory, for providing some of the GaN layers used in
this work and for helping with the AFM measurements. This work is
supported by the National Science Foundation under Grant Nos.
ECS-0618948 and ECCS-0742139.
NR 30
TC 14
Z9 14
U1 1
U2 26
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD OCT 15
PY 2010
VL 108
IS 8
AR 083103
DI 10.1063/1.3493266
PG 7
WC Physics, Applied
SC Physics
GA 674LJ
UT WOS:000283745100004
ER
PT J
AU Birnbaum, AJ
Auyeung, RC
Wahl, KJ
Zalalutidnov, M
Laracuente, AR
Pique, A
AF Birnbaum, A. J.
Auyeung, R. C.
Wahl, K. J.
Zalalutidnov, M.
Laracuente, A. R.
Pique, A.
TI Laser printed micron-scale free standing laminate composites: Process
and properties
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID FOCUSED ION-BEAM; CANTILEVERS; SILICON; INK
AB Micron-scale free standing structures were generated via the laser decal transfer process using high viscosity Ag nanoinks without the use of any sacrificial or release layers. Both cantilevered (34 X 10 X 0.46 mu m(3)) and doubly suspended beams (38 X 5 X 0.46 mu m(3)) were fabricated. Laminate composites were then generated by selectively coating the underside of these structures with silicon using a focused ion beam deposition technique. The static responses of the composite structures were characterized via fitting nanoindentation induced beam deflections with a derived closed-form solution yielding Young's modulii of the Ag and Si layers as E(Ag) approximate to 40 GPa and E(Si) approximate to 16 GPa, respectively. The dynamic response of these structures was also characterized via laser vibrometry revealing quality factors of approximately 400 and 800 for cantilevers and microbridges, respectively. Several techniques (static and dynamic) to ascertain the residual stress state of these structures were also employed revealing an average residual stress, sigma(0) approximate to 89 MPa. (C) 2010 American Institute of Physics. [doi:10.1063/1.3492708]
C1 [Birnbaum, A. J.; Auyeung, R. C.; Pique, A.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Wahl, K. J.] USN, Res Lab, Surface Chem Branch, Washington, DC 20375 USA.
[Zalalutidnov, M.] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
[Laracuente, A. R.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Birnbaum, AJ (reprint author), USN, Res Lab, Div Mat Sci & Technol, Code 6364, Washington, DC 20375 USA.
EM andrew.birnbaum@gmail.com
OI Wahl, Kathryn/0000-0001-8163-6964
FU Office of Naval Research (ONR)
FX This work was sponsored by the Office of Naval Research (ONR).
NR 20
TC 5
Z9 5
U1 0
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD OCT 15
PY 2010
VL 108
IS 8
AR 083526
DI 10.1063/1.3492708
PG 7
WC Physics, Applied
SC Physics
GA 674LJ
UT WOS:000283745100043
ER
PT J
AU Harris, JR
Lewellen, JW
AF Harris, J. R.
Lewellen, J. W.
TI Suppression of current fluctuations in an intense electron beam
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
AB When an intense beam encounters an aperture, the transmitted current depends on the properties of the beam and the transport channel, as well as those of the aperture itself. In some cases, an increase in the incident beam current will be exactly compensated by an increase in the incident beam area, so that the current density at the aperture remains unchanged. When this occurs, the transmitted beam current becomes independent of changes in the incident beam current, providing a passive means for suppressing current fluctuations in the beam. In this article, a key requirement for the existence of this condition is derived. This requirement is shown to be fulfilled in the case of an idealized uniform focusing channel in the small-signal limit, but to be violated when the current fluctuations are not small. Even in this case, the apertured transport system retains the ability to suppress-but not totally eliminate-fluctuations in the transmitted beam current for a wide range of incident beam currents. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3468176]
C1 [Harris, J. R.; Lewellen, J. W.] USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Harris, JR (reprint author), USN, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
EM jrharris@nps.edu
FU Office of Naval Research; High Energy Laser Joint Technology Office
FX This work was funded by grants from the Office of Naval Research and the
High Energy Laser Joint Technology Office.
NR 24
TC 2
Z9 2
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD OCT 15
PY 2010
VL 108
IS 8
AR 083301
DI 10.1063/1.3468176
PG 5
WC Physics, Applied
SC Physics
GA 674LJ
UT WOS:000283745100015
ER
PT J
AU Cimino, F
Volk, BS
Setter, D
AF Cimino, Francesca
Volk, Bradford Scott
Setter, Don
TI Anterior Cruciate Ligament Injury: Diagnosis, Management, and Prevention
SO AMERICAN FAMILY PHYSICIAN
LA English
DT Article
ID RANDOMIZED CONTROLLED-TRIAL; FOLLOW-UP; KNEE; TEARS; LAXITY;
EPIDEMIOLOGY; MECHANISMS; STRENGTH; MENISCUS; ATHLETE
AB There are an estimated 80,000 to 100,000 anterior cruciate ligament (ACL) repairs in the United States each year. Most ACL tears occur from noncontact injuries. Women experience ACL tears up to nine times more often than men. Evaluation of the ACL should be performed immediately after an injury if possible, but is often limited by swelling and pain. When performed properly, a complete knee examination is more than 80 percent sensitive for an ACL injury. The Lachman test is the most accurate test for detecting an ACL tear. Magnetic resonance imaging is the primary study used to diagnose ACL injury in the United States. It can also identify concomitant meniscal injury, collateral ligament tear, and bone contusions. Treatment consists of conservative management or surgical intervention, with the latter being the better option for patients who want to return to a high level of activity. Patients who undergo surgery must commit to appropriate rehabilitation for the best outcome. Long-term sequelae of ACL injury include knee osteoarthritis in up to 90 percent of patients. Primary prevention of ACL injury includes specific proprioceptive and neuromuscular training exercises to improve knee stability. (Am Fam Physician. 2010;82(8):917-922. Copyright (C) 2010 American Academy of Family Physicians.)
C1 [Volk, Bradford Scott; Setter, Don] USN Hosp, Bremerton, WA 98312 USA.
[Cimino, Francesca] USN Hosp, Yokosuka, Kanagawa, Japan.
RP Volk, BS (reprint author), USN Hosp, 1 Boone Rd, Bremerton, WA 98312 USA.
EM bradford.volk@med.navy.mil
NR 36
TC 31
Z9 33
U1 2
U2 50
PU AMER ACAD FAMILY PHYSICIANS
PI KANSAS CITY
PA 8880 WARD PARKWAY, KANSAS CITY, MO 64114-2797 USA
SN 0002-838X
J9 AM FAM PHYSICIAN
JI Am. Fam. Physician
PD OCT 15
PY 2010
VL 82
IS 8
BP 917
EP 922
PG 6
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA 672FN
UT WOS:000283568500008
PM 20949884
ER
PT J
AU Bubb, DM
Yi, SY
Kuchmek, J
Corgan, J
Papantonakis, M
AF Bubb, Daniel M.
Yi, Sunyong
Kuchmek, John
Corgan, Jeffrey
Papantonakis, Michael
TI Laser processing of poly(methyl methacrylate) Lambertian diffusers
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE Diffusers; Matrix-assisted pulsed laser evaporation; MAPLE; PMMA, Thin
films; Processing
ID DEPOSITION; POLYMER; FILMS
AB Matrix-assisted pulsed laser deposition was used to deposit poly(methyl methacrylate) on silicon wafers and sodium silicate glass slides for the purpose of making optical diffusers. After deposition, the reflectance of the coated substrates was measured as a function of scattering angle. We found that the angular dependence of the reflectance could be described as the sum of two functions. First, a Gaussian describes the specular reflection of the underlying substrate that has been broadened by passage through the film. Second, a cosine function describes the reflectance contribution from the film itself. We found that by increasing the thickness of the deposited film that we could eliminate the specular reflection to obtain Lambertian diffusers. Since we can control the surface roughness by adjusting the ratio of the two matrices in laser processing, this deposition technique offers the possibility of producing a wide range of diffusers of different types. Published by Elsevier B.V.
C1 [Bubb, Daniel M.; Yi, Sunyong; Kuchmek, John; Corgan, Jeffrey] Rutgers State Univ, Dept Phys, Camden, NJ 08102 USA.
[Bubb, Daniel M.; Papantonakis, Michael] USN, Res Lab, Funct Mat Sect, Washington, DC 20375 USA.
RP Bubb, DM (reprint author), Rutgers State Univ, Dept Phys, 227 Penn St, Camden, NJ 08102 USA.
EM dbubb@camden.rutgers.edu
RI Papantonakis, Michael/G-3888-2012
NR 9
TC 4
Z9 4
U1 0
U2 3
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 OCT 15
PY 2010
VL 257
IS 1
BP 22
EP 24
DI 10.1016/j.apsusc.2010.06.015
PG 3
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 641HQ
UT WOS:000281115800005
ER
PT J
AU Kelton, ML
LeardMann, CA
Smith, B
Boyko, EJ
Hooper, TI
Gackstetter, GD
Bliese, PD
Hoge, CW
Smith, TC
AF Kelton, Molly L.
LeardMann, Cynthia A.
Smith, Besa
Boyko, Edward J.
Hooper, Tomoko I.
Gackstetter, Gary D.
Bliese, Paul D.
Hoge, Charles W.
Smith, Tyler C.
CA Millennium Cohort Study Team
TI Exploratory factor analysis of self-reported symptoms in a large,
population-based military cohort
SO BMC MEDICAL RESEARCH METHODOLOGY
LA English
DT Article
ID GULF-WAR SYNDROME; POSTTRAUMATIC-STRESS-DISORDER; MILLENNIUM COHORT; US
MILITARY; CORRELATION-COEFFICIENT; COMBAT DEPLOYMENT; HEALTH;
PREVALENCE; VALIDATION; EXPOSURES
AB Background: US military engagements have consistently raised concern over the array of health outcomes experienced by service members postdeployment. Exploratory factor analysis has been used in studies of 1991 Gulf War-related illnesses, and may increase understanding of symptoms and health outcomes associated with current military conflicts in Iraq and Afghanistan. The objective of this study was to use exploratory factor analysis to describe the correlations among numerous physical and psychological symptoms in terms of a smaller number of unobserved variables or factors.
Methods: The Millennium Cohort Study collects extensive self-reported health data from a large, population-based military cohort, providing a unique opportunity to investigate the interrelationships of numerous physical and psychological symptoms among US military personnel. This study used data from the Millennium Cohort Study, a large, population-based military cohort. Exploratory factor analysis was used to examine the covariance structure of symptoms reported by approximately 50,000 cohort members during 2004-2006. Analyses incorporated 89 symptoms, including responses to several validated instruments embedded in the questionnaire. Techniques accommodated the categorical and sometimes incomplete nature of the survey data.
Results: A 14-factor model accounted for 60 percent of the total variance in symptoms data and included factors related to several physical, psychological, and behavioral constructs. A notable finding was that many factors appeared to load in accordance with symptom co-location within the survey instrument, highlighting the difficulty in disassociating the effects of question content, location, and response format on factor structure.
Conclusions: This study demonstrates the potential strengths and weaknesses of exploratory factor analysis to heighten understanding of the complex associations among symptoms. Further research is needed to investigate the relationship between factor analytic results and survey structure, as well as to assess the relationship between factor scores and key exposure variables.
C1 [Kelton, Molly L.; LeardMann, Cynthia A.; Smith, Besa; Smith, Tyler C.] US Dept Def, Ctr Deployment Hlth Res, Naval Hlth Res Ctr, San Diego, CA USA.
[Boyko, Edward J.] Puget Sound Hlth Care Syst, Vet Affairs, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Hooper, Tomoko I.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Gackstetter, Gary D.] Analyt Serv Inc, Arlington, VA USA.
[Bliese, Paul D.; Hoge, Charles W.] Walter Reed Army Inst Res, Ctr Psychiat & Neurosci, Silver Spring, MD USA.
RP LeardMann, CA (reprint author), US Dept Def, Ctr Deployment Hlth Res, Naval Hlth Res Ctr, San Diego, CA USA.
EM cynthia.leardmann@med.navy.mil
FU Henry M. Jackson Foundation for the Advancement of Military Medicine,
Rockville, Maryland; VA Puget Sound Health Care System; US Department of
Defense [60002]; US Army Medical Research and Materiel Command, Fort
Detrick, Maryland
FX We are indebted to the Millennium Cohort Study participants, without
whom these analyses would not be possible. We thank Scott L. Seggerman
from the Management Information Division, US Defense Manpower Data
Center, Seaside, California. Additionally, we thank Michelle Stoia from
the Naval Health Research Center. We also thank all the professionals
from the US Army Medical Research and Materiel Command, especially those
from the Military Operational Medicine Research Program, Fort Detrick,
Maryland. VA Puget Sound Health Care System provided support for Dr.
Boyko's involvement in this research. We appreciate the support of the
Henry M. Jackson Foundation for the Advancement of Military Medicine,
Rockville, Maryland.; This report represents Naval Health Research
Center report 09-21, supported by the US Department of Defense, under
work unit no. 60002. The views expressed in this article are those of
the authors and do not reflect the official policy or position of the US
Department of the Navy, US Department of the Army, US Department of the
Air Force, US Department of Defense, US Department of Veterans Affairs,
or the US Government. This work was supported by the Military
Operational Medicine Research Program of the US Army Medical Research
and Materiel Command, Fort Detrick, Maryland. The funding organization
had no role in the design and conduct of the study; collection,
preparation, analysis, or interpretation of data; or preparation,
review, or approval of the manuscript.
NR 41
TC 4
Z9 4
U1 0
U2 1
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2288
J9 BMC MED RES METHODOL
JI BMC Med. Res. Methodol.
PD OCT 15
PY 2010
VL 10
AR 94
DI 10.1186/1471-2288-10-94
PG 11
WC Health Care Sciences & Services
SC Health Care Sciences & Services
GA 673MQ
UT WOS:000283668000001
PM 20950474
ER
PT J
AU Medina, S
Wessman, D
Krause, D
Stepenosky, J
Boswell, G
Crum-Cianflone, N
AF Medina, Sheila
Wessman, Dylan
Krause, David
Stepenosky, James
Boswell, Gilbert
Crum-Cianflone, Nancy
TI Coronary Aging in HIV-infected Patients
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Letter
C1 [Crum-Cianflone, Nancy] USN, HIV Clin, Clin Invest Dept KCA, San Diego Med Ctr, San Diego, CA 92134 USA.
[Medina, Sheila; Crum-Cianflone, Nancy] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Wessman, Dylan; Krause, David] USN, Dept Cardiol, San Diego Med Ctr, San Diego, CA 92134 USA.
[Stepenosky, James; Boswell, Gilbert] USN, Dept Radiol, San Diego Med Ctr, San Diego, CA 92134 USA.
RP Crum-Cianflone, N (reprint author), USN, HIV Clin, Clin Invest Dept KCA, San Diego Med Ctr, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil
FU NIAID NIH HHS [Y1-AI-5072]
NR 4
TC 4
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U1 0
U2 0
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 1058-4838
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD OCT 15
PY 2010
VL 51
IS 8
BP 990
EP 993
DI 10.1086/656442
PG 5
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 652UU
UT WOS:000282036700024
PM 20858081
ER
PT J
AU Papineau, D
De Gregorio, BT
Cody, GD
Fries, MD
Mojzsis, SJ
Steele, A
Stroud, RM
Fogel, ML
AF Papineau, Dominic
De Gregorio, Bradley T.
Cody, George D.
Fries, Marc D.
Mojzsis, Stephen J.
Steele, Andrew
Stroud, Rhonda M.
Fogel, Marilyn L.
TI Ancient graphite in the Eoarchean quartz-pyroxene rocks from Akilia in
southern West Greenland I: Petrographic and spectroscopic
characterization
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID ISUA SUPRACRUSTAL BELT; GRANULITE-FACIES METAMORPHISM; RAMAN MICROPROBE
SPECTROSCOPY; OLDEST PUTATIVE MICROFOSSILS; ARCHEAN CHEMICAL SEDIMENTS;
ITSAQ GNEISS COMPLEX; EARTHS EARLIEST LIFE; CARBONACEOUS MATERIAL;
SOUTHWEST GREENLAND; IRON-FORMATION
AB Because all known Eoarchean (>3.65 Ga) volcano-sedimentary terranes are locked in granitoid gneiss complexes that have experienced high degrees of metamorphism and deformation, the origin and mode of preservation of carbonaceous material in the oldest metasedimentary rocks remain a subject of vigorous debate. To determine the biogenicity of carbon in graphite in such rocks, carbonaceous material must be demonstrably indigenous and its composition should be consistent with thermally altered biogenic carbon as well as inconsistent with abiogenic carbon. Here we report the petrological and spectroscopic characteristics of carbonaceous material, typically associated with individual apatite grains, but also with various other minerals including calcite, in a >3.83 Ga granulite-facies ferruginous quartz-pyroxene unit (Qp rock) from the island of Akilia in southern West Greenland. In thin sections of the fine-grained parts of Akilia Qp rock sample G91-26, mapped apatites were found to be associated with graphite in about 20% of the occurrences. Raman spectra of this carbonaceous material had strong G-band and small D-band absorptions indicative of crystalline graphite. Three apatite-associated graphites were found to contain curled graphite structures, identified by an anomalously intense second-order D-band (or 2D-band) Raman mode. These structures are similar to graphite whiskers or cones documented to form at high temperatures. Raman spectra of apatite-associated graphite were consistent with formation at temperatures calculated to be between 635 and 830 degrees C, which are consistent with granulite-facies metamorphic conditions. Three graphite targets extracted by focused ion beam (FIB) methods contained thin graphite coatings on apatite grains rather than inclusions sensu stricto as inferred from transmitted light microscopy and Raman spectroscopy. TEM analyses of graphite in these FIB sections showed a (0 0 0 2) interplanar spacing between 3.41 and 3.64 angstrom for apatite-associated graphite, which is larger than the spacing of pure graphite (3.35 angstrom) and may be caused by the presence of non-carbon heteroatoms in inter-layer sites. Samples analyzed by synchrotron-based scanning transmission X-ray microscopy (STXM) also confirmed the presence of crystalline graphite, but abundances of N and O heteroatoms were below detection limit for this method. Graphite in the Akilia Qp rock was also found to occur in complex polyphase mineral assemblages of hornblende +/- calcite +/- sulfides +/- magnetite that point to high-temperature precipitation from carbon-bearing fluids. These complex mineral assemblages may represent another generation of graphitization that could have occurred during the amphibolite-facies metamorphic event at 2.7 Ga. Several observations point to graphitization from high-temperature fluid-deposition for some of the Akilia graphite and our results do not exclude a biogenic source of carbon in graphite associated with apatite, but ambiguities remain for the origin of this carbon. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Papineau, Dominic; Cody, George D.; Fries, Marc D.; Steele, Andrew; Fogel, Marilyn L.] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA.
[De Gregorio, Bradley T.; Stroud, Rhonda M.] USN, Div Mat Sci & Technol, Res Lab, Washington, DC 20375 USA.
[Fries, Marc D.] NASA, Jet Prop Lab, Pasadena, CA 91109 USA.
[Mojzsis, Stephen J.] Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA.
RP Papineau, D (reprint author), Carnegie Inst Washington, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA.
EM dpapineau@ciw.edu
RI De Gregorio, Bradley/B-8465-2008; Fogel, Marilyn/M-2395-2015; Stroud,
Rhonda/C-5503-2008
OI De Gregorio, Bradley/0000-0001-9096-3545; Fogel,
Marilyn/0000-0002-1176-3818; Stroud, Rhonda/0000-0001-5242-8015
FU NASA [NNX08AO16G, NAG5-13497]; NASA Astrobiology Institute; Geophysical
Laboratory of the Carnegie Institution of Washington; Fond quebecois de
la recherche sur la nature et les technologies; NSF [EAR0228999]; NSERC;
NRC; CIHR; University of Saskatchewan; Director of the Office of Energy
Research, Office of Basic Energy Sciences, Materials Sciences Division
of the US-DOE
FX We would like to thank M. Obst and D. Kilcoyne for help and advice on
STXM analyses. Discussions with D. Rumble, R. Hazen, T. McCollom, and F.
McCubbin, as well as reviews from two anonymous reviewers and T. Chacko
helped to improve the manuscript. This work was supported by the NASA
Exobiology and Evolutionary Biology Program (Grant # NNX08AO16G), the
NASA Astrobiology Institute, and the Geophysical Laboratory of the
Carnegie Institution of Washington. DP also acknowledges the Fond
quebecois de la recherche sur la nature et les technologies for support.
SJM acknowledges grants from the NASA exobiology (#NAG5-13497) and the
NSF LExEn (EAR0228999) programs. The synchrotron-based STXM work
described in this paper was partly performed at the Canadian Light
Source, which is supported by NSERC, NRC, CIHR, and the University of
Saskatchewan, and at the Advanced Light Source, which is supported by
the Director of the Office of Energy Research, Office of Basic Energy
Sciences, Materials Sciences Division of the US-DOE.
NR 94
TC 21
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U1 2
U2 36
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 OCT 15
PY 2010
VL 74
IS 20
BP 5862
EP 5883
DI 10.1016/j.gca.2010.05.025
PG 22
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 653ZX
UT WOS:000282139000011
ER
PT J
AU Papineau, D
De Gregorio, BT
Stroud, RM
Steele, A
Pecoits, E
Konhauser, K
Wang, JH
Fogel, ML
AF Papineau, Dominic
De Gregorio, Bradley T.
Stroud, Rhonda M.
Steele, Andrew
Pecoits, Ernesto
Konhauser, Kurt
Wang, Jianhua
Fogel, Marilyn L.
TI Ancient graphite in the Eoarchean quartz-pyroxene rocks from Akilia in
southern West Greenland II: Isotopic and chemical compositions and
comparison with Paleoproterozoic banded iron formations
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID RAMAN MICROPROBE SPECTROSCOPY; GRANULITE-FACIES GRAPHITE; ISUA
SUPRACRUSTAL BELT; EARTHS EARLIEST LIFE; LAKE-SUPERIOR REGION;
HYDROTHERMAL CONDITIONS; SOUTHWEST GREENLAND; CONTACT-METAMORPHISM;
MINERAL ASSEMBLAGES; ABIOTIC SYNTHESIS
AB We present detailed petrographic surveys of apatite grains in association with carbonaceous material (CM) in two banded iron formations (BIFs) from the Paleoproterozoic of Uruguay and Michigan for comparison with similar mineral associations in the highly debated Akilia Quartz-pyroxene (Qp) rock. Petrographic and Raman spectroscopic surveys of these Paleoproterozoic BIFs show that apatite grains typically occur in bands parallel to bedding and are more often associated with CM when concentrations of organic matter are high. Carbonaceous material in the Vichadero BIF from Uruguay is generally well-crystallized graphite and occurs in concentrations around 0.01 wt% with an average delta(13)C(gra) value of -28.6 +/- 4.4 parts per thousand (1 sigma). In this BIF, only about 5% of apatite grains are associated with graphite. In comparison, CM in the Bijiki BIF from Michigan is also graphitic, but occurs in concentrations around 2.4 wt% with delta(13)C(gra) values around -24.0 +/- 0.3 parts per thousand (1 sigma). In the Bijiki BIF, more than 78% of apatite grains are associated with CM. Given the geologic context and high levels of CM in the Bijiki BIF, the significantly higher proportion of apatite grains associated with CM in this rock is interpreted to represent diagenetically altered biomass and shows that such diagenetic mineral associations can survive metamorphism up to the amphibolite facies.
Isotope compositions of CM in muffled acidified whole-rock powders from the Akilia Qp rock have average delta(13)C(gra) values of 17.5 +/- 2.5 parts per thousand (1 sigma), while delta(13)C(carb) values in whole-rock powders average -4.0 +/- 1.0 parts per thousand (1 sigma). Carbon isotope compositions of graphite associated with apatite and other minerals in the Akilia Qp rock were also measured with the NanoSIMS to have similar ranges of delta(13)C(gra) values averaging -13.8 +/- 5.6 parts per thousand (1 sigma). The NanoSIMS was also used to semi-quantitatively map the distributions of H, N, O, P, and S in graphite from the Akilia Qp rock, and relative abundances were found to be similar for graphite associated with apatite or with hornblende, calcite, and sulfides. These analyses revealed generally lower abundances of trace elements in the Akilia graphite compared to graphite associated with apatite from Paleoproterozoic BIFs.
Graphite associated with hornblende, calcite, and sulfides in the Akilia Qp rock was fluid-deposited at high-temperature from carbon-bearing fluids, and since this graphite has similar ranges of delta(13)C(gra) values and of trace elements compared to graphite associated with apatite, we conclude that the Akilia graphite in different mineral associations formed from the same source(s) of CM. Collectively our results do not exclude a biogenic origin of the carbon in the Akilia graphite, but because some observations can not exclude graphitization of abiogenic carbon from CO(2)- and CH(4)-bearing mantle fluids, there remain ambiguities with respect to the exact origin of carbon in this ancient metasedimentary rock. Accordingly, there may have been several generations of graphite formation along with possibly varying mixtures of CO(2)- and CH(4)-bearing fluids that may have resulted in large ranges of delta(13)C(gra) values. The possibility of fluid-deposited graphite associated with apatite should be a focus of future investigations as this may prove to be an alternative pathway of graphitization from phosphate-bearing fluids. Correlated micro-analytical approaches tested on terrestrial rocks in this work provide insights into the origin of carbon in ancient graphite and will pave the way for the search for life on other ancient planetary surfaces. (C) 2010 Elsevier Ltd. All rights reserved.
C1 [Papineau, Dominic; Steele, Andrew; Fogel, Marilyn L.] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA.
[De Gregorio, Bradley T.; Stroud, Rhonda M.] USN, Div Mat Sci & Technol, Res Lab, Washington, DC 20375 USA.
[Pecoits, Ernesto; Konhauser, Kurt] Univ Alberta, Dept Earth Sci, Edmonton, AB, Canada.
[Wang, Jianhua] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
RP Papineau, D (reprint author), Carnegie Inst Washington, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA.
EM dpapineau@ciw.edu
RI De Gregorio, Bradley/B-8465-2008; Wang, Jianhua/D-6500-2011; Stroud,
Rhonda/C-5503-2008;
OI De Gregorio, Bradley/0000-0001-9096-3545; Wang,
Jianhua/0000-0002-7671-2413; Stroud, Rhonda/0000-0001-5242-8015;
Konhauser, Kurt/0000-0001-7722-7068
FU NASA [NNX08AO16G]; NASA Astrobiology Institute [NNA04CC09A]; W.M. Keck
Foundation; Geophysical Laboratory of the Carnegie Institution of
Washington, Carnegie of Canada; NAI; Fond quebecois de la recherche sur
la nature et les technologies; NSERC
FX We would like to thank L. Nittler and E. Hauri for discussions on data
acquired with the NanoSIMS and R. Bowden for help with some analyses by
IRMS. Discussions with D. Rumble, R. Hazen, B. French, and T. McCollom
helped to improve an early version of the manuscript. C. House kindly
provided a graphite powder standard used in this work. We would like to
thank M. Humphrey and A. Aibak for assistance in the Marquette drill
core library and the Geological Survey of Michigan for granting access.
Three anonymous reviewers are gratefully acknowledged for thoughtful
comments that greatly improved the manuscript. We gratefully acknowledge
funding from the NASA Exobiology and Evolutionary Biology Program (Grant
No. NNX08AO16G), the NASA Astrobiology Institute (Grant No. NNA04CC09A),
and the W.M. Keck Foundation. D.P. is very grateful for continuing
financial support from the Geophysical Laboratory of the Carnegie
Institution of Washington, Carnegie of Canada, the NAI, and the Fond
quebecois de la recherche sur la nature et les technologies. K.K.
acknowledges funding through a NSERC Discovery Grant.
NR 82
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD OCT 15
PY 2010
VL 74
IS 20
BP 5884
EP 5905
DI 10.1016/j.gca.2010.07.002
PG 22
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 653ZX
UT WOS:000282139000012
ER
PT J
AU Zega, TJ
Alexander, CMO
Busemann, H
Nittler, LR
Hoppe, P
Stroud, RM
Young, AF
AF Zega, Thomas J.
Alexander, Conel M. O'D
Busemann, Henner
Nittler, Larry R.
Hoppe, Peter
Stroud, Rhonda M.
Young, Andrea F.
TI Mineral associations and character of isotopically anomalous organic
material in the Tagish Lake carbonaceous chondrite
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID INTERSTELLAR CHEMISTRY; METEORITES; MATTER; NITROGEN; ORIGIN; PARTICLES;
GRAINS; DISK
AB We report a coordinated analytical study of matrix material in the Tagish Lake carbonaceous chondrite in which the same small (<= 20 mu m) fragments were measured by secondary ion mass spectrometry (SIMS), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), electron energy-loss spectroscopy (EELS), and X-ray absorption near-edge spectroscopy (XANES). SIMS analysis reveals H and N isotopic anomalies (hotspots), ranging from hundreds to thousands of nanometers in size, which are present throughout the fragments. Although the differences in spatial resolution of the SIMS techniques we have used introduce some uncertainty into the exact location of the hotspots, in general, the H and N isotopic anomalies are spatially correlated with C enrichments, suggesting an organic carrier. TEM analysis, enabled by site-specific extraction using a focused-ion-beam scanning-electron microscope, shows that the hotspots contain an amorphous component, Fe-Ni sulfides, serpentine, and mixed-cation carbonates. TEM imaging reveals that the amorphous component occurs in solid and porous forms, EDS indicates that it contains abundant C, and EELS and XANES at the C K edge reveal that it is largely aromatic. This amorphous component is probably macromolecular C, likely the carrier of the isotopic anomalies, and similar to the material extracted from bulk samples as insoluble organic matter. However, given the large sizes of some of the hotspots, the disparity in spatial resolution among the various techniques employed in our study, and the phases with which they are associated, we cannot entirely rule out that some of the isotopic anomalies are carried by inorganic material, e.g., sheet silicates. The isotopic composition of the organic matter points to an initially primitive origin, quite possibly within cold interstellar clouds or the outer reaches of the solar protoplanetary disk. The association of organic material with secondary phases, e.g., serpentine and carbonates, suggests that the organic matter was susceptible to parent-body processing, and thus, isotopic dilution. Published by Elsevier Ltd.
C1 [Zega, Thomas J.; Stroud, Rhonda M.] USN, Div Mat Sci & Technol, Res Lab, Washington, DC 20375 USA.
[Alexander, Conel M. O'D; Nittler, Larry R.] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
[Busemann, Henner] Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England.
[Hoppe, Peter] Max Planck Inst Chem, D-55020 Mainz, Germany.
[Young, Andrea F.] Columbia Univ, Dept Phys, New York, NY 10027 USA.
RP Zega, TJ (reprint author), USN, Div Mat Sci & Technol, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM tzega@nrl.navy.mil
RI Young, Andrea/H-9697-2012; Alexander, Conel/N-7533-2013; Hoppe,
Peter/B-3032-2015; Stroud, Rhonda/C-5503-2008;
OI Young, Andrea/0000-0001-5954-8028; Alexander, Conel/0000-0002-8558-1427;
Hoppe, Peter/0000-0003-3681-050X; Stroud, Rhonda/0000-0001-5242-8015;
Busemann, Henner/0000-0002-0867-6908
FU NASA; NSF at the Carnegie Institution
FX We thank Mike Zolensky for the samples of the Tagish Lake CC and
Laurence Garvie for the reference samples of calcite, diamond, and
graphite. We also thank them, Adrian Brearley, two anonymous referees,
and AE Sandra Pizzarello for suggestions that improved the manuscript.
We appreciate the assistance of Sue Wirick in setting up XANES
experiments and Brad De Gregorio in processing XANES data. This research
was supported by grants from the NASA Astrobiology, Cosmochemistry, and
Origins of Solar Systems programs. A. Young was supported by a NSF
Research Experience for Undergraduates Program at the Carnegie
Institution.
NR 49
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U2 22
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 OCT 15
PY 2010
VL 74
IS 20
BP 5966
EP 5983
DI 10.1016/j.gca.2010.07.018
PG 18
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 653ZX
UT WOS:000282139000017
ER
PT J
AU Cheng, RH
Justus, BL
Rosenberg, A
Mcllroy, DN
Holman, Z
Zhang, D
Kranov, Y
AF Cheng, Ruihua
Justus, B. L.
Rosenberg, A.
Mcllroy, D. N.
Holman, Z.
Zhang, D.
Kranov, Y.
TI The magnetic domain configuration in Co/Ni/Co nanoscale antidot arrays
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID PERMALLOY ARRAYS; REVERSAL; LATTICE; FILMS
AB We performed superconducting quantum interference devices and magnetic force microscopy (MFM) measurements on magnetic multilayer Co(60 angstrom)/Ni(90 angstrom)/Co(60 angstrom) nanoscale antidot samples. The antidot samples were fabricated on nanochannel glass substrates with different antidot diameters and the antidots ordered as a two dimensional hexagonal lattice structure. The results indicate that a self-organized domain structure is formed due to the pinning effect of the antidots. The strong uniaxial anisotropy of Co suppresses the shape anisotropy of the antidots and results in an uncommon domain structure. The field dependent MFM data reveal a reversal of magnetization. (C) 2010 American Institute of Physics. [doi:10.1063/1.3501114]
C1 [Cheng, Ruihua] Indiana Univ Purdue Univ, Dept Phys, Indianapolis, IN 46202 USA.
[Justus, B. L.; Rosenberg, A.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Mcllroy, D. N.; Holman, Z.; Zhang, D.; Kranov, Y.] Univ Idaho, Dept Phys, Moscow, ID 83844 USA.
RP Cheng, RH (reprint author), Indiana Univ Purdue Univ, Dept Phys, 402 N Blackford St, Indianapolis, IN 46202 USA.
EM rucheng@iupui.edu
NR 20
TC 7
Z9 7
U1 1
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD OCT 15
PY 2010
VL 108
IS 8
AR 086110
DI 10.1063/1.3501114
PG 3
WC Physics, Applied
SC Physics
GA 674LJ
UT WOS:000283745100174
ER
PT J
AU Hite, JK
Mastro, MA
Eddy, CR
AF Hite, J. K.
Mastro, M. A.
Eddy, C. R., Jr.
TI Approach for dislocation free GaN epitaxy
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article
DE Defect reduction; Electron channeling contrast imaging; Metalorganic
chemical vapor deposition; Selective epitaxy; Gallium Nitride;
Semiconducting III-V materials
ID LATERAL OVERGROWTH; REDUCTION; GROWTH
AB The characteristics of confined epitaxial growth are investigated with the goal of determining the contributing effects of mask attributes (spacing, feature size) and growth conditions (V/III ratio, pressure, temperature) on the efficiency of the approach for dislocation density reduction of GaN. In addition to standard (secondary electron and atomic force) microscopy, electron channeling contrast imaging (ECCI) is employed to identify extended defects over large (tens of microns) areas. Using this method, it is illustrated that by confining the epitaxial growth, high quality GaN can be grown with dislocation densities approaching zero. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Hite, J. K.; Mastro, M. A.; Eddy, C. R., Jr.] USN, Res Lab, Washington, DC 20375 USA.
RP Hite, JK (reprint author), USN, Res Lab, Code 6882,4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM jennifer.hite.ctr@nrl.navy.mil
RI Hite, Jennifer/L-5637-2015
OI Hite, Jennifer/0000-0002-4090-0826
FU Office of Naval Research; American Society for Engineering Naval
Research Laboratory
FX This work was supported by the Office of Naval Research. JKH
acknowledges the support of the American Society for Engineering Naval
Research Laboratory Post-doctoral Fellowship Program. The authors would
also like to thank Y.N. Picard and M.E. Twigg for informative
conversations on ECCI.
NR 17
TC 8
Z9 8
U1 1
U2 14
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 OCT 15
PY 2010
VL 312
IS 21
BP 3143
EP 3146
DI 10.1016/j.jcrysgro.2010.07.054
PG 4
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 709AI
UT WOS:000286407100017
ER
PT J
AU Wang, SH
Lin, NH
OuYang, CF
Wang, JL
Campbell, JR
Peng, CM
Lee, CT
Sheu, GR
Tsay, SC
AF Wang, Sheng-Hsiang
Lin, Neng-Huei
OuYang, Chang-Feng
Wang, Jia-Lin
Campbell, James R.
Peng, Chi-Ming
Lee, Chung-Te
Sheu, Guey-Rong
Tsay, Si-Chee
TI Impact of Asian dust and continental pollutants on cloud chemistry
observed in northern Taiwan during the experimental period of ABC/EAREX
2005
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID PACIFIC-OCEAN; CHEMICAL CHARACTERISTICS; AIRBORNE MEASUREMENTS;
TROPOSPHERIC AEROSOL; MEASUREMENT PROGRAM; LIDAR MEASUREMENTS; SUN
PHOTOMETER; BOUNDARY-LAYER; GOCART MODEL; AIR-QUALITY
AB Observations of particulate matter (PM), vertical cloud and aerosol structure and cloud water chemistry in northern Taiwan were conducted during the ABC/EAREX 2005 period. Five Asian continental outflow regimes reaching Taiwan were identified. One was coupled with a dust storm observed not only at Gosan, Korea, but also over Taiwan, suggesting the scope of its regional impact. The arrival of the dust event was determined by lidar, cloud water, and surface PM measurements. When continental outflow events correspond to the presence of significant dust concentrations, air quality can be drastically worsened due to high levels of PM. PM10 (PM with aerodynamic diameters < 10 mu m), pH, conductivity, and ion concentrations of cloud water increased drastically near the dissipating stage of the frontal passage/cloud event for the dust case. Cloud water may have become acidified by pollution from industrial and urban regions along the coast of eastern China. Nevertheless, abundant Ca2+ contributed to the neutralization of acidic cloud water during the dust stage. The much higher aerosol and chemical loading injected into these clouds caused an enrichment effect in the cloud water, which can double the cloud loading of total ions, when Ca2+ increases by approximately 7 times.
C1 [Wang, Sheng-Hsiang; Lin, Neng-Huei; Peng, Chi-Ming; Sheu, Guey-Rong] Natl Cent Univ, Dept Atmospher Sci, Chungli 32054, Taiwan.
[Campbell, James R.] USN, Res Lab, Monterey, CA 93943 USA.
[Lee, Chung-Te] Natl Cent Univ, Grad Inst Environm Engn, Chungli 32054, Taiwan.
[Lin, Neng-Huei; OuYang, Chang-Feng; Wang, Jia-Lin] Natl Cent Univ, Dept Chem, Chungli 32054, Taiwan.
[Wang, Sheng-Hsiang; Tsay, Si-Chee] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Wang, Sheng-Hsiang] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA.
RP Wang, SH (reprint author), Natl Cent Univ, Dept Atmospher Sci, Chungli 32054, Taiwan.
EM nhlin@cc.ncu.edu.tw
RI Campbell, James/C-4884-2012; Tsay, Si-Chee/J-1147-2014; Wang,
Sheng-Hsiang/F-4532-2010; Ou-Yang, Chang-Feng/R-2271-2016
OI Campbell, James/0000-0003-0251-4550; Wang,
Sheng-Hsiang/0000-0001-9675-3135; Ou-Yang,
Chang-Feng/0000-0002-8477-3013
FU National Science Council of Taiwan [NSC92-2111-M-008-018-AGC,
NSC93-2111-M-008-016-AGC, NSC94-2111-M-008-018-AGC,
NSC94-2752-M-008-006-PAE]; Taiwan Environmental Protection
Administration [EPA93-U1L1-02-101, EPA94-U1L1-02-101]; NASA; Naval
Research Laboratory, Monterey, California
FX This work was supported by the National Science Council of Taiwan under
grants NSC92-2111-M-008-018-AGC, NSC93-2111-M-008-016-AGC,
NSC94-2111-M-008-018-AGC, and NSC94-2752-M-008-006-PAE and by the Taiwan
Environmental Protection Administration under contracts
EPA93-U1L1-02-101 and EPA94-U1L1-02-101, and also by Hal Maring, NASA
Radiation Science Program. We thank Chi-Wen Liou and Wei-Jing Jian for
their help on data processing. The authors gratefully acknowledge the
NOAA Air Resources Laboratory (ARL) for the provision of the HYSPLIT
transport and dispersion model and/or READY website
(http://www.arl.noaa.gov/ready.html) used in this publication. Author
J.C. acknowledges the support of J.S. Reid at Naval Research Laboratory,
Monterey, California. The NASA Micro-Pulse Lidar Network is funded by
the NASA Earth Observing System and Radiation Sciences Program.
NR 66
TC 7
Z9 7
U1 1
U2 10
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 OCT 15
PY 2010
VL 115
AR D00K24
DI 10.1029/2009JD013692
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 666BU
UT WOS:000283084800004
ER
PT J
AU Seltzer, SJ
Michalak, DJ
Donaldson, MH
Balabas, MV
Barber, SK
Bernasek, SL
Bouchiat, MA
Hexemer, A
Hibberd, AM
Kimball, DFJ
Jaye, C
Karaulanov, T
Narducci, FA
Rangwala, SA
Robinson, HG
Shmakov, AK
Voronov, DL
Yashchuk, VV
Pines, A
Budker, D
AF Seltzer, S. J.
Michalak, D. J.
Donaldson, M. H.
Balabas, M. V.
Barber, S. K.
Bernasek, S. L.
Bouchiat, M. -A.
Hexemer, A.
Hibberd, A. M.
Kimball, D. F. Jackson
Jaye, C.
Karaulanov, T.
Narducci, F. A.
Rangwala, S. A.
Robinson, H. G.
Shmakov, A. K.
Voronov, D. L.
Yashchuk, V. V.
Pines, A.
Budker, D.
TI Investigation of antirelaxation coatings for alkali-metal vapor cells
using surface science techniques
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID ATOMIC FORCE MICROSCOPY; WALL-COATED CELL; PARAFFIN CRYSTALS; POLARIZED
XE-129; NORMAL-ALKANES; MAGNETOMETER; RELAXATION; PHASE; LIGHT;
SPECTROSCOPY
AB Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of antirelaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades and has been demonstrated to allow an atom to experience up to 10 000 collisions with the walls of its container without depolarizing, but the details of its operation remain poorly understood. We apply modern surface and bulk techniques to the study of paraffin coatings in order to characterize the properties that enable the effective preservation of alkali spin polarization. These methods include Fourier transform infrared spectroscopy, differential scanning calorimetry, atomic force microscopy, near-edge x-ray absorption fine structure spectroscopy, and x-ray photoelectron spectroscopy. We also compare the light-induced atomic desorption yields of several different paraffin materials. Experimental results include the determination that crystallinity of the coating material is unnecessary, and the detection of CvC double bonds present within a particular class of effective paraffin coatings. Further study should lead to the development of more robust paraffin antirelaxation coatings, as well as the design and synthesis of new classes of coating materials. (C) 2010 American Institute of Physics. [doi:10.1063/1.3489922]
C1 [Seltzer, S. J.; Michalak, D. J.; Donaldson, M. H.; Pines, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Seltzer, S. J.; Michalak, D. J.; Donaldson, M. H.; Pines, A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Balabas, M. V.] SI Vavilov State Opt Inst, St Petersburg 199034, Russia.
[Barber, S. K.; Hexemer, A.; Voronov, D. L.; Yashchuk, V. V.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Bernasek, S. L.; Hibberd, A. M.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA.
[Bouchiat, M. -A.] Ecole Normale Super, Dept Phys, Lab Kastler Brossel, F-75231 Paris, France.
[Kimball, D. F. Jackson] Calif State Univ E Bay, Dept Phys, Hayward, CA 94542 USA.
[Jaye, C.] NIST, Div Ceram, Mat Sci & Engn Lab, Gaithersburg, MD 20899 USA.
[Karaulanov, T.; Shmakov, A. K.; Budker, D.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Narducci, F. A.] USN, Air Syst Command, EO Sensors Div, Patuxent River, MD 20670 USA.
[Rangwala, S. A.] Raman Res Inst, Bangalore 560080, Karnataka, India.
[Robinson, H. G.] NIST, Div Time & Frequency, Boulder, CO 80305 USA.
[Budker, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
RP Seltzer, SJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM seltzer@berkeley.edu; budker@berkeley.edu
RI Rangwala, Sadiq/E-6899-2012; Balabas, Mikhail/A-5273-2012; Budker,
Dmitry/F-7580-2016
OI Balabas, Mikhail/0000-0002-5383-7897; Budker, Dmitry/0000-0002-7356-4814
FU Office of Science, Office of Basic Energy Sciences, Materials Sciences
Division and Nuclear Science Division, of the U. S. Department of Energy
[DE-AC02-05CH11231]; NSF/DST [PHY-0425916]; Office of Naval Research
(ONR) [N0001409WX21049]
FX The authors thank Daniel Fischer, Kristin Schmidt, and Ed Kramer for
assistance with the NEXAFS measurements, and Joel Ager, Joshua Wnuk,
David Trease, and Gwendal Kervern for helpful discussions and other
assistance. S.J.S., D.J.M., M. H. D., A. P., and D. B., the Advanced
Light Source, and the DSC, FTIR, and AFM studies were supported by the
Director, Office of Science, Office of Basic Energy Sciences, Materials
Sciences Division and Nuclear Science Division, of the U. S. Department
of Energy under Contract No. DE-AC02-05CH11231 at Lawrence Berkeley
National Laboratory. Other parts of this work were funded by the NSF/DST
under Grant No. PHY-0425916 for U.S.-India cooperative research, by an
Office of Naval Research (ONR) MURI grant, and by ONR under Grant No.
N0001409WX21049.
NR 81
TC 20
Z9 20
U1 1
U2 31
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 OCT 14
PY 2010
VL 133
IS 14
AR 144703
DI 10.1063/1.3489922
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 667NN
UT WOS:000283200400049
PM 20950026
ER
PT J
AU Grzybowska, K
Paluch, M
Grzybowski, A
Wojnarowska, Z
Hawelek, L
Kolodziejczyk, K
Ngai, KL
AF Grzybowska, K.
Paluch, M.
Grzybowski, A.
Wojnarowska, Z.
Hawelek, L.
Kolodziejczyk, K.
Ngai, K. L.
TI Molecular Dynamics and Physical Stability of Amorphous Anti-Inflammatory
Drug: Celecoxib
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID DIFFERENTIAL SCANNING CALORIMETRY; GLASS-FORMING LIQUIDS; SUPERCOOLED
LIQUIDS; THERMODYNAMIC FRAGILITIES; TEMPERATURE-DEPENDENCE; GLASSFORMING
LIQUIDS; ALPHA-PROCESS; TIME SCALES; O-TERPHENYL; RELAXATION
AB By using dielectric spectroscopy we analyzed the relation between molecular mobility and tendency of the amorphous celecoxib to recrystallize. We found that celecoxib is kinetically a fragile glassformer, contrary to the conclusion reached by others from thermodynamic fragility. The possible correlation of the large tendency of celecoxib to crystallize with various molecular motions have been investigated. Our study shows that the structural relaxation seems to be responsible for devitrification of celecoxib if stored at room temperature similar to 293 K. Notwithstanding, the crystallization can be considered to ultimately be affected by the beta-process (JG-relaxation) because it is the precursor of the structural alpha-relaxation.
C1 [Grzybowska, K.; Paluch, M.; Grzybowski, A.; Wojnarowska, Z.; Hawelek, L.; Kolodziejczyk, K.] Univ Silesia, Inst Phys, PL-40007 Katowice, Poland.
[Ngai, K. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Grzybowska, K (reprint author), Univ Silesia, Inst Phys, Ul Uniwersytecka 4, PL-40007 Katowice, Poland.
EM kgrzybow@us.edu.pl
FU EU [TEAM/2008-1/6]
FX The authors are deeply thankful for the financial support of their
research within the framework of the project entitled "From Study of
Molecular Dynamics in Amorphous Medicines at Ambient and Elevated
Pressure to Novel Applications in Pharmacy" (Contract No TEAM/2008-1/6),
which is operated within the Foundation for Polish Science Team
Programme cofinanced by the EU European Regional Development Fund.
Moreover, K.G. thanks FNP for awarding grants within die framework of
the START Programme (2009).
NR 48
TC 53
Z9 54
U1 4
U2 16
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 OCT 14
PY 2010
VL 114
IS 40
BP 12792
EP 12801
DI 10.1021/jp1040212
PG 10
WC Chemistry, Physical
SC Chemistry
GA 659DC
UT WOS:000282546200004
PM 20849135
ER
PT J
AU Chang, YT
Tang, TY
Chao, SY
Chang, MH
Ko, DS
Yang, YJ
Liang, WD
McPhaden, MJ
AF Chang, Ya-Ting
Tang, Tswen Yung
Chao, Shenn-Yu
Chang, Ming-Huei
Ko, Dong S.
Yang, Yiing Jang
Liang, Wen-Der
McPhaden, Michael J.
TI Mooring observations and numerical modeling of thermal structures in the
South China Sea
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID TOPEX/POSEIDON ALTIMETRY; DATA ASSIMILATION; MESOSCALE EDDIES;
CIRCULATION; SYSTEM; VARIABILITY; MODULATION; HURRICANE; TIDE
AB Three sets of Autonomous Temperature Line Acquisition Systems were deployed in the South China Sea. Gaps aside, the data covered nearly 3 years at the northern station and about 2 years farther south. Fluctuations ranged from episodic to interannual. Internal tides, more diurnal than semidiurnal, were active basinwide. Twelve typhoons passed during measurement periods. The most severe one, typhoon Babs in 1998, caused a temperature drop of over 7 degrees C at 50 m. Despite strong monsoons, only near-surface temperature showed clear seasonal variations. Intraseasonal variations induced by mesoscale eddy stood out much better at subsurface depths. Propagating eddies aside, some eddies were seasonal and nearly stationary. From daily archives of an eddy-resolving, data-assimilating ocean model ( East Asian Seas Nowcast/Forecast System), we identified two paradigms leading to the generation of a persistent spring-summer warm eddy in the central-western basin. In normal years, a complete cyclonic gyre was driven by a strong winter northeast monsoon. Water piled up along the periphery of the South China Sea. Afterward, a warm eddy could be generated from west of Luzon Island and propagated westward while intensifying. Under a weak northeast monsoon, such as in El Nino years, piled-up water tended to stay in the southern basin. When the wind relaxed in spring, warm water returned northward to form a warm eddy in the central-western basin. Transition from SW to NE monsoon also often led to a warm eddy generation in southern latitudes, when the summer eastward jet departing from central Vietnam broke up.
C1 [Chang, Ya-Ting; Tang, Tswen Yung] Natl Taiwan Univ, Inst Oceanog, Taipei 106, Taiwan.
[Chao, Shenn-Yu] Univ Maryland, Ctr Environm Sci, Horn Point Lab, Cambridge, MD 21613 USA.
[Chang, Ming-Huei] Natl Taiwan Ocean Univ, Dept Marine Environm Informat, Chilung 20224, Taiwan.
[Yang, Yiing Jang; Liang, Wen-Der] Naval Acad, Dept Marine Sci, Kaohsiung 813, Taiwan.
[Ko, Dong S.] USN, Res Lab, Div Oceanog, Ocean Dynam & Predict Branch, Stennis Space Ctr, MS 39529 USA.
[McPhaden, Michael J.] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
RP Chang, YT (reprint author), Natl Taiwan Univ, Inst Oceanog, Roosevelt Rd, Taipei 106, Taiwan.
RI McPhaden, Michael/D-9799-2016;
OI CHANG, MING-HUEI/0000-0002-6409-7652
FU Taiwan's National Science Council [95-2611-M-002-016-MY3,
95-2611-M-002-018-MY3, 98-2745-M-002-004]; Office of Naval Research (US)
[N00014-09-0623, N00014-08WX-02-1170]
FX The altimeter products were produced and distributed by Aviso
(http://www.aviso.oceanobs.com/), as part of the Ssalto
ground-processing segment. The work was supported by Taiwan's National
Science Council under grants 95-2611-M-002-016-MY3,
95-2611-M-002-018-MY3, and 98-2745-M-002-004 for T.-Y. Tang, and by the
Office of Naval Research (US) under grants N00014-09-0623 for S.-Y. Chao
and N00014-08WX-02-1170 for D. S. Ko. PMEL publication 3606.
NR 44
TC 7
Z9 7
U1 0
U2 10
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD OCT 12
PY 2010
VL 115
AR C10022
DI 10.1029/2010JC006293
PG 19
WC Oceanography
SC Oceanography
GA 666DD
UT WOS:000283090900004
ER
PT J
AU Roland, CM
AF Roland, C. M.
TI Relaxation Phenomena in Vitrifying Polymers and Molecular Liquids
SO MACROMOLECULES
LA English
DT Article
ID GLASS-FORMING LIQUIDS; ANNIHILATION LIFETIME SPECTROSCOPY; INELASTIC
NEUTRON-SCATTERING; GOLDSTEIN BETA-RELAXATION; LOCAL SEGMENTAL DYNAMICS;
WET SKID RESISTANCE; EQUATION-OF-STATE; SUPERCOOLED LIQUIDS;
DIELECTRIC-RELAXATION; ALPHA-RELAXATION
AB Recent experimental results on the dynamics of glass-forming, materials, particularly polymers, are surveyed. The focus is on aspects of the behavior that are connected to or correlated with structural relaxation. These results include the invariance to thermodynamic conditions (temperature, pressure. volume) of a number of properties breadth of the relaxation dispersion, number of dynamically correlating molecules, Johari-Goldstein secondary relaxation time, onset of the dynamic crossover, and the product of temperature and specific volume with the latter raised to a material constant provided the structural relaxation time is maintained constant. Additional salient experimental findings include the correlation of various high-frequency processes, usually measured in the glassy state, with properties of the equilibrium material above T-g. These correlations indicate that the glass transition, although conventionally defined by the relaxation time becoming larger than experimental time scales (> 100 s), has its beginning many orders of magnitude sooner. Also described herein are effects of spatial confinement on the glass transition: these can be dramatic, yet taken in into are rather discombobulating. Such generally observed phenomena must be included in a comprehensive theory or model of the glass transition, since properties intimately connected to structural relaxation cannot be derived separately and be expected to exhibit such correlations by coincidence.
C1 USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Roland, CM (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. Stimulating
discussions with K. L. Ngai and C. G. Robertson are gratefully
acknowledged. The author thanks J. R. Dutcher, M. D. Edigcr, D.
Leporini, K. L. Ngai, and C. G. Robertson for kindly providing their
data.
NR 247
TC 67
Z9 67
U1 5
U2 49
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 OCT 12
PY 2010
VL 43
IS 19
BP 7875
EP 7890
DI 10.1021/m101649u
PG 16
WC Polymer Science
SC Polymer Science
GA 658GM
UT WOS:000282478500001
ER
PT J
AU Deyde, VM
Sampath, R
Garten, RJ
Blair, PJ
Myers, CA
Massire, C
Matthews, H
Svoboda, P
Reed, MS
Pohl, J
Klimov, AI
Gubareva, LV
AF Deyde, Varough M.
Sampath, Rangarajan
Garten, Rebecca J.
Blair, Patrick J.
Myers, Christopher A.
Massire, Christian
Matthews, Heather
Svoboda, Pavel
Reed, Matthew S.
Pohl, Jan
Klimov, Alexander I.
Gubareva, Larisa V.
TI Genomic Signature-Based Identification of Influenza A Viruses Using
RT-PCR/Electro-Spray Ionization Mass Spectrometry (ESI-MS) Technology
SO PLOS ONE
LA English
DT Article
ID ADAMANTANE RESISTANCE; AMANTADINE-RESISTANT; NUCLEIC-ACIDS; H1N1 VIRUS;
PCR; INFECTION; HUMANS; REASSORTMENT; EVOLUTION; DIAGNOSIS
AB Background: The emergence and rapid spread of the 2009 H1N1 pandemic influenza A virus (H1N1pdm) in humans highlights the importance of enhancing the capability of existing influenza surveillance systems with tools for rapid identification of emerging and re-emerging viruses. One of the new approaches is the RT-PCR electrospray ionization mass spectrometry (RT-PCR/ESI-MS) technology, which is based on analysis of base composition (BC) of RT-PCR amplicons from influenza "core" genes. Combination of the BC signatures represents a "genomic print" of an influenza A virus.
Methodology/Principal Findings: Here, 757 samples collected between 2006 and 2009 were tested, including 302 seasonal H1N1, 171 H3N2, 7 swine triple reassortants, and 277 H1N1pdm viruses. Of the 277 H1N1pdm samples, 209 were clinical specimens (throat, nasal and nasopharyngeal swabs, nasal washes, blood and sputum). BC signatures for the clinical specimen from one of the first cases of the 2009 pandemic, A/California/04/2009, confirmed it as an unusual, previously unrecognized influenza A virus, with "core" genes related to viruses of avian, human and swine origins. Subsequent analysis of additional 276 H1N1pdm samples revealed that they shared the genomic print of A/California/04/2009, which differed from those of North American swine triple reassortant viruses, seasonal H1N1 and H3N2 and other viruses tested. Moreover, this assay allowed distinction between "core" genes of co-circulating groups of seasonal H1N1, such as clades 2B, 2C, and their reassortants with dual antiviral resistance to adamantanes and oseltamivir.
Conclusions/Significance: The RT-PCR/ESI-MS assay is a broad range influenza identification tool that can be used directly on clinical specimens for rapid and accurate detection of influenza virus genes. The assay differentiates the H1N1pdm from seasonal and other nonhuman hosts viruses. Although not a diagnostic tool, this assay demonstrates its usefulness and robustness in influenza virus surveillance and detection of novel and unusual viruses with previously unseen genomic prints.
C1 [Deyde, Varough M.; Garten, Rebecca J.; Klimov, Alexander I.; Gubareva, Larisa V.] Ctr Dis Control & Prevent, Natl Ctr Immunizat & Resp Dis, Influenza Div, Atlanta, GA 30333 USA.
[Blair, Patrick J.; Myers, Christopher A.] USN, Hlth Res Ctr, Naval Resp Dis Lab, San Diego, CA 92152 USA.
[Svoboda, Pavel; Reed, Matthew S.; Pohl, Jan] Ctr Dis Control & Prevent, Natl Ctr Emerging & Zoonot Infect Dis, Div Sci Resources, Atlanta, GA USA.
[Sampath, Rangarajan; Massire, Christian; Matthews, Heather] Ibis Biosci, Genom & Computat Biol, Carlsbad, CA USA.
RP Deyde, VM (reprint author), Ctr Dis Control & Prevent, Natl Ctr Immunizat & Resp Dis, Influenza Div, Atlanta, GA 30333 USA.
EM lqg3@cdc.gov
FU Centers for Disease Control and Prevention
FX The study was funded by the Centers for Disease Control and Prevention.
This funder had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript. However, the
manuscript was cleared for submission to the journal following CDC's
standard operating procedures. RS, CM and HM were involved in data
analysis and interpretation. RS was also involved in assay design and
preparation of manuscript. All three are full time employees of Abbott
Molecular Inc. Abbott Molecular Inc. who funds RS, CM, and HM has
therefore a role in the study design, data collection and analysis, and
manuscript preparation.
NR 45
TC 25
Z9 27
U1 0
U2 4
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 OCT 12
PY 2010
VL 5
IS 10
AR e13293
DI 10.1371/journal.pone.0013293
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 662KX
UT WOS:000282807300018
PM 20967258
ER
PT J
AU Ahmad, Z
Franz, BA
McClain, CR
Kwiatkowska, EJ
Werdell, J
Shettle, EP
Holben, BN
AF Ahmad, Ziauddin
Franz, Bryan A.
McClain, Charles R.
Kwiatkowska, Ewa J.
Werdell, Jeremy
Shettle, Eric P.
Holben, Brent N.
TI New aerosol models for the retrieval of aerosol optical thickness and
normalized water-leaving radiances from the SeaWiFS and MODIS sensors
over coastal regions and open oceans
SO APPLIED OPTICS
LA English
DT Article
ID ATMOSPHERIC CORRECTION; SATELLITE DATA; AERONET; SCATTERING; ALGORITHM;
INSTRUMENT; NETWORK; SUN
AB We describe the development of a new suite of aerosol models for the retrieval of atmospheric and oceanic optical properties from the SeaWiFS and MODIS sensors, including aerosol optical thickness (tau), angstrom coefficient (alpha), and water-leaving radiance (L-omega). The new aerosol models are derived from Aerosol Robotic Network (AERONET) observations and have bimodal lognormal distributions that are narrower than previous models used by the Ocean Biology Processing Group. We analyzed AERONET data over open ocean and coastal regions and found that the seasonal variability in the modal radii, particularly in the coastal region, was related to the relative humidity. These findings were incorporated into the models by making the modal radii, as well as the refractive indices, explicitly dependent on relative humidity. From these findings, we constructed a new suite of aerosol models. We considered eight relative humidity values (30%, 50%, 70%, 75%, 80%, 85%, 90%, and 95%) and, for each relative humidity value, we constructed ten distributions by varying the fine-mode fraction from zero to 1. In all, 80 distributions (8Rh x 10 fine-mode fractions) were created to process the satellite data. We also assumed that the coarse-mode particles were nonabsorbing (sea salt) and that all observed absorptions were entirely due to fine-mode particles. The composition of the fine mode was varied to ensure that the new models exhibited the same spectral dependence of single scattering albedo as observed in the AERONET data. The reprocessing of the SeaWiFS data show that, over deep ocean, the average tau(865) values retrieved from the new aerosol models was 0.100 +/- 0.004, which was closer to the average AERONET value of 0.086 +/- 0.066 for tau(870) for the eight open-ocean sites used in this study. The average tau(865) value from the old models was 0.131 +/- 0.005. The comparison of monthly mean aerosol optical thickness retrieved from the SeaWiFS sensor with AERONET data over Bermuda and Wallops Island show very good agreement with one another. In fact, 81% of the data points over Bermuda and 78% of the data points over Wallops Island fall within an uncertainty of +/- 0.02 in optical thickness. As a part of the reprocessing effort of the SeaWiFS data, we also revised the vicarious calibration gain factors, which resulted in significant improvement in angstrom coefficient (alpha) retrievals. The average value of alpha from the new models over Bermuda is 0.841 +/- 0.171, which is in good agreement with the AERONET value of 0.891 +/- 0.211. The average value of alpha retrieved using old models is 0.394 + 0.087, which is significantly lower than the AERONET value. (C) 2010 Optical Society of America
C1 [Ahmad, Ziauddin; Franz, Bryan A.; McClain, Charles R.; Kwiatkowska, Ewa J.; Werdell, Jeremy; Holben, Brent N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Ahmad, Ziauddin] Sci & Data Syst Inc, Silver Spring, MD 20906 USA.
[Kwiatkowska, Ewa J.] Sci Applicat Int Corp, San Diego, CA 92121 USA.
[Werdell, Jeremy] Sci Syst & Applicat Inc, Lanham, MD 20706 USA.
[Shettle, Eric P.] USN, Res Lab, Washington, DC 20375 USA.
RP Ahmad, Z (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt Rd, Greenbelt, MD 20771 USA.
EM Ziauddin.Ahmad@nasa.gov
RI Franz, Bryan/D-6284-2012
OI Franz, Bryan/0000-0003-0293-2082
FU NASA's Office of Earth Science; Office of Naval Research (ONR)
FX We would like to thank Bo-Cai Gao of the Naval Research Laboratory (NRL)
and Suraiya P. Ahmad of INNOVIM for many useful discussions and
suggestions, and the members of OBPG, in particular, W. D. Robinson, for
providing meteorological data for the analysis of AERONET observations.
Also, we thank AERONET staff for maintaining and providing the
sunphotometer data used in this study. In addition, we would like to
thank two anonymous reviewers for their helpful comments. Eric P.
Shettle's work was supported by a grant from NASA's Office of Earth
Science and by NRL internal funding [from the Office of Naval Research
(ONR)].
NR 34
TC 88
Z9 89
U1 1
U2 18
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD OCT 10
PY 2010
VL 49
IS 29
BP 5545
EP 5560
DI 10.1364/AO.49.005545
PG 16
WC Optics
SC Optics
GA 660YK
UT WOS:000282685300005
PM 20935700
ER
PT J
AU Siemiginowska, A
Burke, DJ
Aldcroft, TL
Worrall, DM
Allen, S
Bechtold, J
Clarke, T
Cheung, CC
AF Siemiginowska, Aneta
Burke, D. J.
Aldcroft, Thomas L.
Worrall, D. M.
Allen, S.
Bechtold, Jill
Clarke, Tracy
Cheung, C. C.
TI HIGH-REDSHIFT X-RAY COOLING-CORE CLUSTER ASSOCIATED WITH THE LUMINOUS
RADIO-LOUD QUASAR 3C 186
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE quasars: individual (3C 186); X-rays: galaxies: clusters
ID ACTIVE GALACTIC NUCLEI; COMPACT STEEP-SPECTRUM; RELAXED GALAXY CLUSTERS;
MAGNETIC-FIELD STRENGTHS; CYGNUS-A II; CHANDRA OBSERVATIONS; DARK
ENERGY; HOST CLUSTERS; COSMOLOGICAL PARAMETERS; RICH ENVIRONMENTS
AB We present the first results from a new, deep (200 ks) Chandra observation of the X-ray luminous galaxy cluster surrounding the powerful (L similar to 10(47) erg s(-1)), high-redshift (z = 1.067), compact-steep-spectrum radio-loud quasar 3C 186. The diffuse X-ray emission from the cluster has a roughly ellipsoidal shape and extends out to radii of at least similar to 60 arcsec (similar to 500 kpc). The centroid of the diffuse X-ray emission is offset by 0.68 +/- 0 ''.11 (similar to 5.5 +/- 0.9 kpc) from the position of the quasar. We measure a cluster mass within the radius at which the mean enclosed density is 2500 times the critical density, r(2500) = 283(-13)(+18) kpc, of 1.02(-0.14)(+0.21) x 10(14) M(circle dot) . The gas-mass fraction within this radius is f(gas) = 0.129(-0.016)(+0.015). This value is consistent with measurements at lower redshifts and implies minimal evolution in the f(gas)(z) relation for hot, massive clusters at 0 < z < 1.1. The measured metal abundance of 0.42(-0.07)(+0.08) Solar is consistent with the abundance observed in other massive, high-redshift clusters. The spatially resolved temperature profile for the cluster shows a drop in temperature, from kT similar to 8 keV to kT similar to 3 keV, in its central regions that is characteristic of cooling-core clusters. This is the first spectroscopic identification of a cooling-core cluster at z > 1. We measure cooling times for the X-ray emitting gas at radii of 50 kpc and 25 kpc of 1.7 +/- 0.2 x 10(9) years and 7.5 +/- 2.6 x 10(8) years, as well as a nominal cooling rate (in the absence of heating) of 400 +/- 190 M(circle dot) year(-1) within the central 100 kpc. In principle, the cooling gas can supply enough fuel to support the growth of the supermassive black hole and to power the luminous quasar. The radiative power of the quasar exceeds by a factor of 10 the kinematic power of the central radio source, suggesting that radiative heating may be important at intermittent intervals in cluster cores.
C1 [Siemiginowska, Aneta; Burke, D. J.; Aldcroft, Thomas L.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Worrall, D. M.] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England.
[Allen, S.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Bechtold, Jill] Univ Arizona, Steward Observ, Tucson, AZ USA.
[Cheung, C. C.] USN, Res Lab, Natl Res Council Res Associate, Div Space Sci, Washington, DC 20375 USA.
RP Siemiginowska, A (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
EM asiemiginowska@cfa.harvard.edu
OI Burke, Douglas/0000-0003-4428-7835
FU NASA [NAS8-39073]; Chandra grant [GO2-3148A, GO5-6113X, GO8-9125A-R]
FX We thank the anonymous referee for comments that greatly improved the
manuscript. A.S. thanks Mitch Begelman and Anna Wolter for comments. We
thank Agnieszka Siemiginowska for improving the language of the text.
This research is funded in part by NASA contract NAS8-39073. Partial
support for this work was provided by the Chandra grants GO2-3148A,
GO5-6113X, and GO8-9125A-R. Basic research in radio astronomy at the NRL
is supported by 6.1 Base funding.
NR 84
TC 33
Z9 33
U1 0
U2 2
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 OCT 10
PY 2010
VL 722
IS 1
BP 102
EP 111
DI 10.1088/0004-637X/722/1/102
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SH
UT WOS:000282908900009
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Antolini, E
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Costamante, L
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giommi, P
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guiriec, S
Hadasch, D
Hayashida, M
Hays, E
Healey, SE
Horan, D
Hughes, RE
Itoh, R
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Massaro, E
Mazziotta, MN
McEnery, JE
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Mueller, M
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohno, M
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Ritz, S
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sander, A
Scargle, JD
Sgro, C
Shaw, MS
Smith, PD
Spandre, G
Spinelli, P
Starck, JL
Strickman, MS
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wallace, E
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Antolini, E.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Costamante, L.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giommi, P.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M.-H.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Hayashida, M.
Hays, E.
Healey, S. E.
Horan, D.
Hughes, R. E.
Itoh, R.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Massaro, E.
Mazziotta, M. N.
McEnery, J. E.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Mueller, M.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohno, M.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Ritz, S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F.-W.
Sander, A.
Scargle, J. D.
Sgro, C.
Shaw, M. S.
Smith, P. D.
Spandre, G.
Spinelli, P.
Starck, J.-L.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wallace, E.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI GAMMA-RAY LIGHT CURVES AND VARIABILITY OF BRIGHT FERMI-DETECTED BLAZARS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: general; gamma rays: galaxies; gamma rays: general;
methods: data analysis; methods: statistical; quasars: general
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; BL-LACERTAE OBJECTS;
EXTRAGALACTIC RADIO-SOURCES; RAPID OPTICAL VARIABILITY; LONG-TERM
VARIABILITY; SELF-COMPTON MODEL; SPACE-TELESCOPE; SOURCE LIST; EGRET
DATA
AB This paper presents light curves as well as the first systematic characterization of variability of the 106 objects in the high-confidence Fermi Large Area Telescope Bright AGN Sample (LBAS). Weekly light curves of this sample, obtained during the first 11 months of the Fermi survey (2008 August 4-2009 July 4), are tested for variability and their properties are quantified through autocorrelation function and structure function analysis. For the brightest sources, 3 or 4 day binned light curves are extracted in order to determine power density spectra (PDSs) and to fit the temporal structure of major flares. More than 50% of the sources are found to be variable with high significance, where high states do not exceed 1/4 of the total observation range. Variation amplitudes are larger for flat spectrum radio quasars and low/intermediate synchrotron frequency peaked BL Lac objects. Autocorrelation timescales derived from weekly light curves vary from four to a dozen of weeks. Variable sources of the sample have weekly and 3-4 day bin light curves that can be described by 1/f(alpha) PDS, and show two kinds of gamma-ray variability: (1) rather constant baseline with sporadic flaring activity characterized by flatter PDS slopes resembling flickering and red noise with occasional intermittence and (2)-measured for a few blazars showing strong activity-complex and structured temporal profiles characterized by long-term memory and steeper PDS slopes, reflecting a random walk underlying mechanism. The average slope of the PDS of the brightest 22 FSRQs and of the 6 brightest BL Lacs is 1.5 and 1.7, respectively. The study of temporal profiles of well-resolved flares observed in the 10 brightest LBAS sources shows that they generally have symmetric profiles and that their total duration vary between 10 and 100 days. Results presented here can assist in source class recognition for unidentified sources and can serve as reference for more detailed analysis of the brightest gamma-ray blazars.
C1 [Antolini, E.; Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Caraveo, P. A.; Chiang, J.; Claus, R.; Costamante, L.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Mueller, M.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Caraveo, P. A.; Chiang, J.; Claus, R.; Costamante, L.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Mueller, M.; Murgia, S.; Nolan, P. L.; Omodei, N.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Antolini, E.; Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Starck, J.-L.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CEA, IRFU,CNRS,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Caliandro, G. A.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Buson, S.; Roth, M.; Wallace, E.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Cameron, R. A.; Rodriguez, A. Y.; Torres, D. F.] IEEC CSIC, Inst Ciencies Espai, Barcelona 08193, Spain.
INAF, Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.; Giommi, P.] Sci Data Ctr, Agenzia Spaziale Italiana ASI, I-00044 Frascati, Italy.
[Celik, Oe.; Gehrels, N.; Hays, E.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Moiseev, A. A.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Larsson, S.; Yang, Z.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Larsson, S.; Ryde, F.; Yang, Z.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M.-H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M.-H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.] Osserv Astron Trieste, Ist Nazl Astrofis, I-34143 Trieste, Italy.
[Fukazawa, Y.; Itoh, R.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Cosm Radiat Lab, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Massaro, E.] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohno, M.; Ozaki, M.; Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Kanagawa 2298510, Japan.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys & Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Ritz, S.; Sadrozinski, H. F.-W.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Ritz, S.; Sadrozinski, H. F.-W.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Ryde, F.; Ylinen, T.] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Scargle, J. D.] NASA, Div Space Sci, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Ciprini, S (reprint author), Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
EM stefano.ciprini@pg.infn.it; sarac@slac.stanford.edu;
Gino.Tosti@pg.infn.it
RI Johnson, Neil/G-3309-2014; Funk, Stefan/B-7629-2015; Loparco,
Francesco/O-8847-2015; Gargano, Fabio/O-8934-2015; Johannesson,
Gudlaugur/O-8741-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Orlando, E/R-5594-2016; Starck, Jean-Luc/D-9467-2011; Thompson,
David/D-2939-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Hays, Elizabeth/D-3257-2012; Morselli,
Aldo/G-6769-2011; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Reimer, Olaf/A-3117-2013; Tosti, Gino/E-9976-2013;
Ozaki, Masanobu/K-1165-2013; Rando, Riccardo/M-7179-2013;
OI Funk, Stefan/0000-0002-2012-0080; Loparco,
Francesco/0000-0002-1173-5673; Gargano, Fabio/0000-0002-5055-6395;
Johannesson, Gudlaugur/0000-0003-1458-7036; Moskalenko,
Igor/0000-0001-6141-458X; Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214; Rando,
Riccardo/0000-0001-6992-818X; giommi, paolo/0000-0002-2265-5003; De
Angelis, Alessandro/0000-0002-3288-2517; Starck,
Jean-Luc/0000-0003-2177-7794; Thompson, David/0000-0001-5217-9135;
lubrano, pasquale/0000-0003-0221-4806; Morselli,
Aldo/0000-0002-7704-9553; giglietto, nicola/0000-0002-9021-2888; Reimer,
Olaf/0000-0001-6953-1385; Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Cutini, Sara/0000-0002-1271-2924; Berenji,
Bijan/0000-0002-4551-772X; Gasparrini, Dario/0000-0002-5064-9495;
Tramacere, Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU K.A. Wallenberg Foundation; International Doctorate on Astroparticle
Physics (IDAPP); ASI-INAF [I/047/8/0]
FX Royal Swedish Academy of Sciences Research Fellow, funded by a grant
from the K.A. Wallenberg Foundation.; Partially supported by the
International Doctorate on Astroparticle Physics (IDAPP) program.; S.C.
acknowledges funding by grant ASI-INAF n.I/047/8/0 related to Fermi on
orbit activities.
NR 69
TC 133
Z9 133
U1 1
U2 7
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 OCT 10
PY 2010
VL 722
IS 1
BP 520
EP 542
DI 10.1088/0004-637X/722/1/520
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SH
UT WOS:000282908900043
ER
PT J
AU Leake, JE
Linton, MG
Antiochos, SK
AF Leake, James E.
Linton, Mark G.
Antiochos, Spiro K.
TI TESTS OF DYNAMICAL FLUX EMERGENCE AS A MECHANISM FOR CORONAL MASS
EJECTION INITIATION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE magnetohydrodynamics (MHD); Sun: coronal mass ejections (CMEs)
ID IONIZED SOLAR ATMOSPHERE; EMERGING MAGNETIC-FLUX; NUMERICAL SIMULATIONS;
BREAKOUT MODEL; ACTIVE REGIONS; ROPE MODEL; INSTABILITY; TUBES; PLASMA;
EVOLUTION
AB Current coronal mass ejection (CME) models set their lower boundary to be in the lower corona. They do not calculate accurately the transfer of free magnetic energy from the convection zone to the magnetically dominated corona because they model the effects of flux emergence using kinematic boundary conditions or simply assume the appearance of flux at these heights. We test the importance of including dynamical flux emergence in CME modeling by simulating, in 2.5D, the emergence of sub-surface flux tubes into different coronal magnetic field configurations. We investigate how much free magnetic energy, in the form of shear magnetic field, is transported from the convection zone to the corona, and whether dynamical flux emergence can drive CMEs. We find that multiple coronal flux ropes can be formed during flux emergence, and although they carry some shear field into the corona, the majority of shear field is confined to the lower atmosphere. Less than 10% of the magnetic energy in the corona is in the shear field, and this, combined with the fact that the coronal flux ropes bring up significant dense material, means that they do not erupt. Our results have significant implications for all CME models which rely on the transfer of free magnetic energy from the lower atmosphere into the corona but which do not explicitly model this transfer. Such studies of flux emergence and CMEs are timely, as we have new capabilities to observe this with Hinode and the Solar Dynamics Observatory, and therefore to test the models against observations.
C1 [Leake, James E.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Linton, Mark G.] USN, Res Lab, SW Washington, Washington, DC 20375 USA.
[Antiochos, Spiro K.] NASA GSFC, Goddard Space Flight Ctr, Heliophys Div, Greenbelt, MD 20771 USA.
RP Leake, JE (reprint author), George Mason Univ, Coll Sci, 4400 Univ Dr, Fairfax, VA 22030 USA.
EM james.leake.ctr.uk@nrl.navy.mil; mark.linton@nrl.navy.mil;
spiro.antiochos@nasa.gov
RI Antiochos, Spiro/D-4668-2012
OI Antiochos, Spiro/0000-0003-0176-4312
FU NASA [NNH06AD58I, ONR/NRL 6.1]; JAXA; NAOJ; STFC; NASA; ESA (European
Space Agency); NSC (Norway); NASA HTP
FX J.E. Leake and M.G. Linton acknowledge support from NASA SR&T grant
number NNH06AD58I, from ONR/NRL 6.1 basic research funds, and from the
NRL-Hinode analysis program. Hinode is a Japanese mission developed and
launched by ISAS/JAXA, collaborating with NAOJ as domestic partner, and
NASA (USA) and STFC (UK) as international partners. Scientific operation
of the Hinode mission is conducted by the Hinode science team organized
at ISAS/JAXA. This team mainly consists of scientists from institutes in
the partner countries. Support for the post-launch operation is provided
by JAXA and NAOJ, STFC, NASA, ESA (European Space Agency), and NSC
(Norway). We are grateful to the Hinode team for all their efforts in
the design, build, and operation of the mission. The work by S.K.
Antiochos was supported by the NASA HTP, TR&T, and SR&T Programs. The
authors thank C. R. DeVore for enlightening discussion concerning the
magnetic breakout model for CME initiation and the numerical modeling of
CMEs.
NR 63
TC 9
Z9 9
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD OCT 10
PY 2010
VL 722
IS 1
BP 550
EP 565
DI 10.1088/0004-637X/722/1/550
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SH
UT WOS:000282908900045
ER
PT J
AU Ko, YK
Raymond, JC
Vrsnak, B
Vujic, E
AF Ko, Yuan-Kuen
Raymond, John C.
Vrsnak, Bojan
Vujic, Eugen
TI MODELING UV AND X-RAY EMISSION IN A POST-CORONAL MASS EJECTION CURRENT
SHEET
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: coronal mass ejections (CMEs); Sun: UV radiation
ID COLLISIONAL IONIZATION EQUILIBRIUM; MAGNETIC RECONNECTION MODEL; FLARE
SUPRA-ARCADE; CME CURRENT SHEETS; SOLAR-FLARE; MAGNETOHYDRODYNAMIC
SIMULATION; CHROMOSPHERIC EVAPORATION; 3-DIMENSIONAL STRUCTURE; SOHO
OBSERVATIONS; RATE COEFFICIENTS
AB A post-coronal mass ejection (CME) current sheet (CS) is a common feature developed behind an erupting flux rope in CME models. Observationally, white light observations have recorded many occurrences of a thin ray appearing behind a CME eruption that closely resembles a post-CME CS in its spatial correspondence and morphology. UV and X-ray observations further strengthen this interpretation by the observations of high-temperature emission at locations consistent with model predictions. The next question then becomes whether the properties inside a post-CME CS predicted by a model agree with observed properties. In this work, we assume that the post-CME CS is a consequence of Petschek-like reconnection and that the observed ray-like structure is bounded by a pair of slow mode shocks developed from the reconnection site. We perform time-dependent ionization calculations and model the UV line emission. We find that such a model is consistent with SOHO/UVCS observations of the post-CME CS. The change of Fe XVIII emission in one event implies an inflow speed of similar to 10 km s(-1) and a corresponding reconnection rate of M(A) similar to 0.01. We calculate the expected X-ray emission for comparison with X-ray observations by Hinode/XRT, as well as the ionic charge states as would be measured in situ at 1 AU. We find that the predicted count rate for Hinode/XRT agrees with what was observed in a post-CME CS on 2008 April 9, and the predicted ionic charge states are consistent with high ionization states commonly measured in the interplanetary CMEs. The model results depend strongly on the physical parameters in the ambient corona, namely the coronal magnetic field, the electron density, and temperature during the CME event. It is crucial to obtain these ambient coronal parameters and as many facets of the CS properties as possible by observational means so that the post-CME CS models can be scrutinized more effectively.
C1 [Ko, Yuan-Kuen] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Raymond, John C.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Vrsnak, Bojan] Fac Geodesy, Hvar Observ, Zagreb, Croatia.
RP Ko, YK (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM yko@ssd5.nrl.navy.mil
FU NRL/ONR; NASA [NNX09AB17G-R, NNX07AL72G]
FX This work is supported by NRL/ONR 6.1 basic research program. This work
was partially supported by NASA grants NNX09AB17G-R and NNX07AL72G to
the Smithsonian Astrophysical Observatory.
NR 63
TC 24
Z9 25
U1 0
U2 2
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 OCT 10
PY 2010
VL 722
IS 1
BP 625
EP 641
DI 10.1088/0004-637X/722/1/625
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SH
UT WOS:000282908900051
ER
PT J
AU Randall, SW
Clarke, TE
Nulsen, PEJ
Owers, MS
Sarazin, CL
Forman, WR
Murray, SS
AF Randall, S. W.
Clarke, T. E.
Nulsen, P. E. J.
Owers, M. S.
Sarazin, C. L.
Forman, W. R.
Murray, S. S.
TI RADIO AND DEEP CHANDRA OBSERVATIONS OF THE DISTURBED COOL CORE CLUSTER
ABELL 133
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: clusters: general; galaxies: clusters: individual (Abell 133);
intergalactic medium; radio continuum: galaxies; X-rays: galaxies:
clusters
ID RELAXED GALAXY CLUSTERS; X-RAY CAVITIES; COLD FRONTS; XMM-NEWTON; SKY
SURVEY; GASEOUS ATMOSPHERE; FLOW CLUSTERS; BUBBLES; SAMPLE; M87
AB We present results based on new Chandra and multi-frequency radio observations of the disturbed cool core cluster Abell 133. The diffuse gas has a complex bird-like morphology, with a plume of emission extending from two symmetric wing-like features. The plume is capped with a filamentary radio structure that has been previously classified as a radio relic. X-ray spectral fits in the region of the relic indicate the presence of either high-temperature gas or non-thermal emission, although the measured photon index is flatter than would be expected if the non-thermal emission is from inverse Compton scattering of the cosmic microwave background by the radio-emitting particles. We find evidence for a weak elliptical X-ray surface brightness edge surrounding the core, which we show is consistent with a sloshing cold front. The plume is consistent with having formed due to uplift by a buoyantly rising radio bubble, now seen as the radio relic, and has properties consistent with buoyantly lifted plumes seen in other systems (e. g., M87). Alternatively, the plume may be a gas sloshing spiral viewed edge-on. Results from spectral analysis of the wing-like features are inconsistent with the previous suggestion that the wings formed due to the passage of a weak shock through the cool core. We instead conclude that the wings are due to X-ray cavities formed by displacement of X-ray gas by the radio relic. The central cD galaxy contains two small-scale cold gas clumps that are slightly offset from their optical and UV counterparts, suggestive of a galaxy-galaxy merger event. On larger scales, there is evidence for cluster substructure in both optical observations and the X-ray temperature map. We suggest that the Abell 133 cluster has recently undergone a merger event with an interloping subgroup, initialing gas sloshing in the core. The torus of sloshed gas is seen close to edge-on, leading to the somewhat ragged appearance of the elliptical surface brightness edge. We show that the additional buoyant force from a passing subcluster can have a significant effect on the rise trajectories of buoyant bubbles, although this effect alone cannot fully explain the morphology of Abell 133. The radio observations reveal a large-scale double-lobed structure not previously identified in the literature. We conclude that this structure represents a previously unreported background giant radio galaxy at z = 0.293, the northern lobe of which overlies the radio relic in the core of Abell 133. A rough estimate indicates that the contribution of this background lobe to the total radio emission in the region of the relic is modest (< 13%).
C1 [Randall, S. W.; Nulsen, P. E. J.; Forman, W. R.; Murray, S. S.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Clarke, T. E.] USN, Res Lab, Washington, DC 20375 USA.
[Owers, M. S.] Swinburne Univ, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia.
[Sarazin, C. L.] Univ Virginia, Dept Astron, Charlottesville, VA 22903 USA.
RP Randall, SW (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
EM srandall@cfa.harvard.edu
OI Randall, Scott/0000-0002-3984-4337; Owers, Matt/0000-0002-2879-1663;
Nulsen, Paul/0000-0003-0297-4493
FU Chandra X-ray Center through NASA [NAS8-03060]; Smithsonian Institution;
NRL
FX The financial support for this work was partially provided for by the
Chandra X-ray Center through NASA contract NAS8-03060, and the
Smithsonian Institution. The National Radio Astronomy Observatory (NRAO)
is a facility of the National Science Foundation operated under
cooperative agreement by Associated Universities, Inc. Basic research in
radio astronomy at the NRL is supported by 6.1 Base funding. We thank
Matteo Murgia for access to private code for calculating synchrotron
ages. We thank E. L. Blanton and the anonymous referee for useful
comments.
NR 51
TC 14
Z9 14
U1 0
U2 2
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 OCT 10
PY 2010
VL 722
IS 1
BP 825
EP 846
DI 10.1088/0004-637X/722/1/825
PG 22
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 663SH
UT WOS:000282908900068
ER
PT J
AU Siefring, CL
Morrill, JS
Sentman, DD
Heavner, MJ
AF Siefring, Carl L.
Morrill, Jeff S.
Sentman, Davis D.
Heavner, Matthew J.
TI Simultaneous near-infrared and visible observations of sprites and
acoustic-gravity waves during the EXL98 campaign
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID STATE VIBRATIONAL POPULATIONS; COMPLEX AIRGLOW CHEMISTRIES; BLUE JETS;
SPREADFEX CAMPAIGN; AIRCRAFT CAMPAIGN; N-2 EMISSIONS; RED SPRITES; OH;
IONOSPHERE; ATMOSPHERE
AB This paper reports the first images of Near-InfraRed (NIR) 900 to 1700 nm sprite emissions obtained during the Energetics of Upper Atmospheric Excitation by Lightning 1998 (EXL98) airborne observing mission. Results include the first NIR observations of sprites and a correlation between nighttime hydroxyl (OH) airglow, acoustic-gravity waves, and sprite location. A NIR camera monitored both OH airglow and N-2(B) First Positive (1PG) emissions in the NIR by sprites. OH airglow is used as a tracer of acoustic-gravity waves and density structures in the neutral atmosphere in the 80-95 km altitude region. The visible-light imager also observed faint hydroxyl airglow, at times, allowing convenient comparison of the gravity waves and the sprites without image processing. On only one night of observations was a clear correlation observed between the OH airglow and the sprites, with tops of extended lines of sprites appearing to align with the acoustic-gravity wave troughs in the 80 to 95 km altitude region. This investigation shows that a proper viewing geometry is needed to detect such a correlation and requires a distance of about 400-800 km from the sprites. Comparison of sprite visible and NIR emissions show that the NIR is brightest in the central body, likely dimmer at the tops, and rarely above sensitivity in the tendril regions. The observed NIR sprite emissions are thought to be primarily 1PG from the (1,0) and (0,0) vibration transitions near 888 and 1050 nm respectively. The study indicates a need for future NIR spectrographic measurement.
C1 [Siefring, Carl L.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Morrill, Jeff S.] USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA.
[Sentman, Davis D.] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA.
[Heavner, Matthew J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Siefring, CL (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM siefring@ccs.nrl.navy.mil
FU NASA [NAG5-5125, NAG5-5019, NAG5-5172]; ONR; NRL
FX We thank the High-frequency Active Auroral Research Program (HAARP) for
loan of the NRL NIR camera for the EXL98 flights. Dan Osborne, Eugene
Wescott, Dana Moudry, Jim Desroschers, Laura Peticolas, Veronika Besser,
and Don Hampton were instrumental to data collection and campaign
operations. We thank Aeroair Inc., and particularly Jeff Tobolsky for
piloting the EXL98 aircraft missions. The University of Alaska
Fairbanks' Geophysical Institute group was supported by NASA grants
NAG5-5125 and NAG5-5019. The work at NRL was sponsored by NASA NAG5-5172
and ONR. Jeff S. Morrill was partially supported by the Edison Memorial
graduate-training program at NRL.
NR 54
TC 9
Z9 9
U1 2
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 OCT 9
PY 2010
VL 115
AR A00E57
DI 10.1029/2009JA014862
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 690NK
UT WOS:000285011300001
ER
PT J
AU Katritzky, AR
Sakhuja, R
Huang, LC
Gyanda, R
Wang, L
Jackson, DC
Ciaramitaro, DA
Bedford, CD
Duran, RS
AF Katritzky, Alan R.
Sakhuja, Rajeev
Huang, Longchuan
Gyanda, Reena
Wang, Ling
Jackson, David Carnaby
Ciaramitaro, David A.
Bedford, Clifford D.
Duran, Randolph S.
TI Effect of Filler Loading on the Mechanical Properties of Cross linked
1,2,3-Triazole Polymers
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE mechanical properties; strain; modulus; fillers; composites
ID PARTICLE-SIZE; MATERIALS SCIENCE; POLYETHYLENE COMPOSITES; DENSITY
POLYETHYLENE; CLAY NANOCOMPOSITES; CLICK CHEMISTRY; ALUMINUM POWDER;
TENSILE; ALKYNES; AZIDES
AB The effect of filler loading on the mechanical properties of crosslinked triazole polymers obtained by polymerization of E300 dipropiolate (1) with diazide (2) obtained from tetraethylene glycol using tetraacetylene functionalized crosslinker (3) was studied systematically. Aluminum (10 14 mu m) was used as the primary filler during the formulations; the effect of secondary fillers such as aluminum (<75 mu m), NaCl (45-50 and 83-105 mu m) was studied with the increase in the total filler loading. The modulus of the aluminum-filled crosslinked triazole polymers increases with the increase in the filler content while using either particle sized aluminum powder. The use of Al (particle size <75 mu m) and NaCl (particle size 45-50 mu m and 83-105 mu m) as secondary or additional fillers while using aluminum (10-14 mu m) as the main filler, has a diminishing effect on the modulus and strain of the crosslinked triazole polymers. Triazole polymers described herein have the ability to wet and adhere to large quantities of these inorganic salts and thus maintain mechanical properties of the composite comparable to typical polyurethane elastomeric matrices, regardless of the chemistry of the particulate filler, which imparts an important and necessary binder characteristic for energetic composites. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 121-127, 2010
C1 [Katritzky, Alan R.; Sakhuja, Rajeev; Huang, Longchuan; Gyanda, Reena] Univ Florida, Dept Chem, Ctr Heterocycl Cpds, Gainesville, FL 32611 USA.
[Wang, Ling; Duran, Randolph S.] Univ Florida, Dept Chem, Polymer Res Lab, Gainesville, FL 32611 USA.
[Jackson, David Carnaby] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
[Ciaramitaro, David A.; Bedford, Clifford D.] Off Naval Res, Arlington 22203, VA USA.
RP Katritzky, AR (reprint author), Univ Florida, Dept Chem, Ctr Heterocycl Cpds, Gainesville, FL 32611 USA.
EM Katritzky@chem.ufl.edu
FU Office of Naval Research [N00014-06-1-0211]
FX Contract grant sponsor: Office of Naval Research; contract grant number:
N00014-06-1-0211.
NR 29
TC 1
Z9 2
U1 0
U2 6
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0021-8995
J9 J APPL POLYM SCI
JI J. Appl. Polym. Sci.
PD OCT 5
PY 2010
VL 118
IS 1
BP 121
EP 127
DI 10.1002/app.32257
PG 7
WC Polymer Science
SC Polymer Science
GA 633WB
UT WOS:000280536400016
ER
PT J
AU Velamakanni, A
Torres, JR
Ganesh, KJ
Ferreira, PJ
Major, JS
AF Velamakanni, Aruna
Torres, Jahn R.
Ganesh, K. J.
Ferreira, Paulo J.
Major, Jaycoda S.
TI Controlled Assembly of Silane-Based Polymers: Chemically Robust
Thin-Films
SO LANGMUIR
LA English
DT Article
ID LANGMUIR-BLODGETT-FILMS; GOLD SURFACES; LAYER; NANOPARTICLES;
ADSORPTION; MONOLAYERS; MEMBRANES
AB We describe the controlled assembly of silane-based copolymers on various interfaces that have surface silanol groups. This assembly occurs as a result of the formation of very robust siloxane bonds (Si-O-Si) due to a condensation reaction between the alkoxysilane groups of the polymers and surface hydroxyl groups of the substrates. Deposition of these copolymers is not self-limiting; therefore, they could not be assembled into discrete monolayers. However, UV-visible data collected as a function of deposition cycle reveals a linear relationship, confirming the deposition of a constant amount of polymer in each deposition cycle. A linear variation of layer thickness with deposition cycles is also observed. The assembled polymer layers are found to be very robust and resistant even when exposed to piranha solution for several hours.
C1 [Velamakanni, Aruna; Major, Jaycoda S.] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA.
[Torres, Jahn R.] USN, Sensors & SONAR Syst Dept, Undersea Warfare Ctr, Dept Navy, Newport, RI 02841 USA.
[Velamakanni, Aruna; Ganesh, K. J.; Ferreira, Paulo J.] Univ Texas Austin, Mat Sci & Engn Program, Austin, TX 78712 USA.
RP Velamakanni, A (reprint author), Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA.
EM avelamakanni@mail.utexas.edu; jahn.torres-jove@navy.mil
FU Office of Internal Investments; Naval Undersea Warfare Center, Division
Newport; National Science Foundation [0618242]
FX A.M.V. thanks Prof. Rod Ruoff and Carl Magnuson at The University of
Texas at Austin. JRT is grateful for the financial support provided by
the office of Internal Investments and the In-House Laboratory
Independent Research program at the Naval Undersea Warfare Center,
Division Newport. The authors also acknowledge the Center for
Nanoscience and Technology and the Texas Materials Institute (TMI) at
UT-Austin for SEM and XPS user facilities, and the National Science
Foundation (Grant # 0618242) for funding the X-ray Photoelectron
Spectrometer used in this work.
NR 45
TC 0
Z9 1
U1 1
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD OCT 5
PY 2010
VL 26
IS 19
BP 15295
EP 15301
DI 10.1021/la102004c
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 654BI
UT WOS:000282142700032
PM 20822109
ER
PT J
AU Ali, A
Madan, HS
Kirk, AP
Zhao, DA
Mourey, DA
Hudait, MK
Wallace, RM
Jackson, TN
Bennett, BR
Boos, JB
Datta, S
AF Ali, A.
Madan, H. S.
Kirk, A. P.
Zhao, D. A.
Mourey, D. A.
Hudait, M. K.
Wallace, R. M.
Jackson, T. N.
Bennett, B. R.
Boos, J. B.
Datta, S.
TI Fermi level unpinning of GaSb (100) using plasma enhanced atomic layer
deposition of Al2O3
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID IN-SITU; SUBSTRATE
AB N-type and p-type GaSb metal-oxide-semiconductor capacitors (MOSCAPs) with atomic-layer-deposited (ALD) and plasma-enhanced-ALD (PEALD) Al2O3 dielectrics are studied to identify the optimum surface preparation and oxide deposition conditions for a high quality oxide-semiconductor interface. The ALD Al2O3/GaSb MOSCAPs exhibit strongly pinned C-V characteristics with high interface state density (D-it) whereas the PEALD Al2O3/GaSb MOSCAPs show unpinned C-V characteristics (low D-it). The reduction in Sb2O3 to metallic Sb is suppressed for the PEALD samples due to lower process temperature, identified by x-ray photoelectron spectroscopy analysis. Absence of elemental Sb is attributed to unpinning of Fermi level at the PEALD Al2O3/GaSb interface. (C) 2010 American Institute of Physics. [doi:10.1063/1.3492847]
C1 [Ali, A.; Madan, H. S.; Zhao, D. A.; Mourey, D. A.; Jackson, T. N.; Datta, S.] Penn State Univ, University Pk, PA 16802 USA.
[Kirk, A. P.; Wallace, R. M.] Univ Texas Dallas, Richardson, TX 75080 USA.
[Hudait, M. K.] Virginia Tech, Blacksburg, VA 24061 USA.
[Bennett, B. R.; Boos, J. B.] USN, Res Lab, Washington, DC 20375 USA.
RP Ali, A (reprint author), Penn State Univ, University Pk, PA 16802 USA.
EM aua176@psu.edu
RI Wallace, Robert/A-5283-2008; Bennett, Brian/A-8850-2008; Jackson,
Thomas/A-4224-2012; Ali, Ashkar/C-5065-2013
OI Wallace, Robert/0000-0001-5566-4806; Bennett, Brian/0000-0002-2437-4213;
FU SRC; DARPA
FX Some of the authors gratefully acknowledge the financial support from
the FCRP for Materials, Structures, and Devices (MSD) sponsored by the
SRC and DARPA.
NR 15
TC 70
Z9 70
U1 0
U2 24
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 OCT 4
PY 2010
VL 97
IS 14
AR 143502
DI 10.1063/1.3492847
PG 3
WC Physics, Applied
SC Physics
GA 661XF
UT WOS:000282765700079
ER
PT J
AU Planelles, J
Climente, JI
Rajadell, F
Doty, MF
Bracker, AS
Gammon, D
AF Planelles, J.
Climente, J. I.
Rajadell, F.
Doty, M. F.
Bracker, A. S.
Gammon, D.
TI Effect of strain and variable mass on the formation of antibonding hole
ground states in InAs quantum dot molecules
SO PHYSICAL REVIEW B
LA English
DT Article
ID MAGNETIC-FIELD; INAS/GAAS
AB Using four-band k.p Hamiltonians, we study how biaxial strain and position-dependent effective masses influence hole tunneling in vertically coupled InAs/GaAs quantum dots. Strain reduces the tunneling and hence the critical interdot distance required for the ground state to change from bonding to antibonding. The reduced spin-orbit interaction in the GaAs matrix, which we account for using position-dependent Luttinger parameters, has the opposite effect. This compensation results in the critical distance being little affected. The possibility to induce the bonding-to-antibonding transition using longitudinal magnetic fields is also investigated. Luttinger-Kohn Hamiltonian predicts a magnetic enhancement of the heavy hole-light hole coupling which, in turn, leads to such transition. No such effect is, however, observed in magnetophotoluminescence experiments. An alternative implementation of the magnetic field in the envelope function Hamiltonian is given which retrieves the experimental behavior.
C1 [Planelles, J.; Climente, J. I.; Rajadell, F.] Univ Jaume 1, Dept Quim Fis & Analit, E-12080 Castellon de La Plana, Spain.
[Doty, M. F.] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA.
[Bracker, A. S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
RP Planelles, J (reprint author), Univ Jaume 1, Dept Quim Fis & Analit, E-12080 Castellon de La Plana, Spain.
EM josep.planelles@qfa.uji.es
RI Doty, Matthew/B-5075-2010; Climente, Juan/K-1699-2014
OI Doty, Matthew/0000-0001-7999-3567; Climente, Juan/0000-0001-6984-6424
FU MCINN [CTQ2008-03344]; UJI-Bancaixa [P1-1A2009-03]; Ramon y Cajal
program
FX Support from MCINN under Project No. CTQ2008-03344, UJI-Bancaixa under
Project No. P1-1A2009-03, and the Ramon y Cajal program (J.I.C.) is
acknowledged.
NR 41
TC 18
Z9 18
U1 1
U2 11
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 4
PY 2010
VL 82
IS 15
AR 155307
DI 10.1103/PhysRevB.82.155307
PG 8
WC Physics, Condensed Matter
SC Physics
GA 657OR
UT WOS:000282422500005
ER
PT J
AU Tandel, SK
Chowdhury, P
Lakshmi, S
Tandel, US
Ahmad, I
Carpenter, MP
Gros, S
Janssens, RVF
Khoo, TL
Kondev, FG
Greene, JP
Hartley, DJ
Lauritsen, T
Lister, CJ
Peterson, D
Robinson, A
Seweryniak, D
Zhu, S
AF Tandel, S. K.
Chowdhury, P.
Lakshmi, S.
Tandel, U. S.
Ahmad, I.
Carpenter, M. P.
Gros, S.
Janssens, R. V. F.
Khoo, T. L.
Kondev, F. G.
Greene, J. P.
Hartley, D. J.
Lauritsen, T.
Lister, C. J.
Peterson, D.
Robinson, A.
Seweryniak, D.
Zhu, S.
TI Rotational bands in odd-A Cm and Cf isotopes: Exploring the highest
neutron orbitals
SO PHYSICAL REVIEW C
LA English
DT Article
ID OCTUPOLE CORRELATIONS; DEFORMATION; ACTINIDES; NO-254
AB Rotational bands have been identified up to high spins (approximate to 28 (h) over bar) in the odd-A nuclei Cm-247,Cm-249 and Cf-249 through inelastic excitation and transfer reactions around the Z = 100 region where stability results from shell effects. The [620]1/2 Nilsson configuration in Cm-249 is the highest-lying neutron orbital, from above the N = 164 spherical subshell gap, for which high-spin rotational behavior has been established. The data allow for an unambiguous experimental assignment of configurations to the observed bands, unusual for odd-A nuclei near Z = 100. The high-spin properties are described in terms of Woods-Saxon cranking calculations.
C1 [Tandel, S. K.; Chowdhury, P.; Lakshmi, S.; Tandel, U. S.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
[Ahmad, I.; Carpenter, M. P.; Gros, S.; Janssens, R. V. F.; Khoo, T. L.; Kondev, F. G.; Greene, J. P.; Lauritsen, T.; Lister, C. J.; Peterson, D.; Robinson, A.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Hartley, D. J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Tandel, SK (reprint author), Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
EM sktandel@gmail.com
RI Soundara Pandian, Lakshmi/C-8107-2013; Carpenter, Michael/E-4287-2015
OI Soundara Pandian, Lakshmi/0000-0003-3099-1039; Carpenter,
Michael/0000-0002-3237-5734
FU US Department of Energy, Office of Nuclear Physics [DE-FG02-94ER40848,
DE-AC02-06CH11357]; National Science Foundation
FX This research is supported by the US Department of Energy, Office of
Nuclear Physics, under Grants No. DE-FG02-94ER40848 and No.
DE-AC02-06CH11357, and the National Science Foundation. The authors are
also indebted for the use of 248Cm and 249Cf to
the Office of Basic Energy Sciences, US Department of Energy, through
the transplutonium element production facilities at Oak Ridge National
Laboratory.
NR 27
TC 21
Z9 21
U1 0
U2 0
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 4
PY 2010
VL 82
IS 4
AR 041301
DI 10.1103/PhysRevC.82.041301
PG 5
WC Physics, Nuclear
SC Physics
GA 657OV
UT WOS:000282422900001
ER
PT J
AU Griffiths, H
Willis, N
AF Griffiths, Hugh
Willis, Nicholas
TI Klein Heidelberg-The First Modern Bistatic Radar System
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
AB We present a description and analysis of the German WW2 bistatic radar system Klein Heidelberg (KH). A brief account is given of the nature of the electronic war between the Allied bombers and the German air defense system, to show the context in which the KH system evolved. This is followed by a description of the development of KH, a technical description, and an assessment of its performance. Next, a discussion of its operational significance, of what happened after WW2, and finally some conclusions and some lessons learned that may be relevant to the development of present-day bistatic radar systems. In particular, we show that its performance was impressive, yielding detection ranges of Allied bombers in excess of 300 km, but that it became operational too late in WW2 to significantly improve German air defense operations.
C1 [Griffiths, Hugh] UCL, Dept Elect & Elect Engn, London WC1E 6BT, England.
[Willis, Nicholas] USN, Ordnance Missile Test Facil, White Sands Missile Range, NM USA.
[Willis, Nicholas] Philco Ford, Mountain View, CA USA.
[Willis, Nicholas] Stanford Res Inst, Menlo Pk, CA USA.
[Willis, Nicholas] Syst Control Inc, Div Radar, Palo Alto, CA USA.
[Willis, Nicholas] Joining Technol Serv Corp, Corp Mkt Program, Informat Syst Div, Silver Spring, MD USA.
[Willis, Nicholas] Joining Technol Serv Corp, IR&D Program, Informat Syst Div, Silver Spring, MD USA.
RP Griffiths, H (reprint author), UCL, Dept Elect & Elect Engn, Gower St, London WC1E 6BT, England.
EM h.griffiths@ee.ucl.ac.uk
NR 27
TC 13
Z9 14
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9251
J9 IEEE T AERO ELEC SYS
JI IEEE Trans. Aerosp. Electron. Syst.
PD OCT
PY 2010
VL 46
IS 4
BP 1571
EP 1588
DI 10.1109/TAES.2010.5595580
PG 18
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 701SE
UT WOS:000285842800002
ER
PT J
AU Bernhardt, PA
AF Bernhardt, Paul A.
TI Radar Backscatter from Conducting Polyhedral Spheres
SO IEEE ANTENNAS AND PROPAGATION MAGAZINE
LA English
DT Article
DE Radar calibration targets; radar cross sections; electromagnetic fields;
moment methods; polyhedral scatterers
ID POWER RADIO-WAVES; GENETIC ALGORITHM; SURFACES; SCATTERING; TARGETS
AB Electromagnetic backscatter characteristics of conducting polyhedral spheres, constructed of 12 pentagons and a large number of hexagons, were investigated. The polyhedral structures were classified by their number of vertices and by the width of the conducting edges in their frames. Polyhedral spheres with 60, 80, 180, 240, 320, 500, 540, 960, and 1500 vertices were evaluated for their ability to scatter electromagnetic waves back to a source. The edge widths were varied between the limits of (1) nearly zero, to produce a wire-frame sphere; and (2) full surface closure of the polygon holes in the sphere, to form solid conducting structures. Using Method-of-Moments simulations with the WIPL-D code, the mono static scattering properties of these spheres were studied over a wide range of structural and frequency parameters. The spherical wire frames had up to a 10 dB larger radar cross section than the completely solid spheres. This result provides models for new light-weight radar cross section targets used as satellite-calibration spheres with enhanced radar cross section for easier detection, low mass for easier launch, and low drag cross section for long orbit life. With selected edge widths, the monostatic radar cross section becomes vanishingly small at specific anti-backscatter frequencies, for conducting spherical shells with a regular pattern of polygon holes. These shells can be placed around solid spheres to nearly eliminate radar reflection from the composite object at specific frequencies. The polyhedral conducting-mesh (PCM) spheres with vanishing radar cross section at a desired frequency have applications for-isotropic scattering sources that reflect no energy back to the electromagnetic source. the anti-backscatter polyhedral conducting-mesh spheres may provide insight for future stealth applications with spherical targets.
C1 USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Bernhardt, PA (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM paul.bernhardt@nrl.navy.mil
FU Office of Naval Research
FX This work was sponsored by the Office of Naval Research. The author
gratefully acknowledges discussions with Dr. Richard Fernsler, Dr. Louis
F. Libello, and Dr. Vijay Kowtha on the validity and applications of
these results.
NR 22
TC 5
Z9 5
U1 1
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1045-9243
J9 IEEE ANTENN PROPAG M
JI IEEE Antennas Propag. Mag.
PD OCT
PY 2010
VL 52
IS 5
BP 52
EP 70
DI 10.1109/MAP.2010.5687519
PG 19
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 708VL
UT WOS:000286392300003
ER
PT J
AU Eng, CH
Jenn, DC
Broadston, R
AF Eng, C. H.
Jenn, D. C.
Broadston, R.
TI Automated Calibration Station for Quadrature Demodulators Used in
Digital Phased Arrays
SO IEEE ANTENNAS AND PROPAGATION MAGAZINE
LA English
DT Article
DE Demodulation; calibration; digital antennas; phased arrays; array signal
processing; LabView
AB Many commercial demodulator boards have an inherent problem of dc offset, due to their direct down-conversion architecture. It is necessary to measure the dc offsets and to compensate for them when the demodulators are used in a system such as a digital phased array. An automated calibration station is described, which uses a combination of commercial off-the-shelf hardware and software to generate RF signals that are used to plot the demodulator I and Q circle and to determine the offset. This automated station has improvements over a manual calibration, such as ease of use, shorter calibration time, accuracy, and repeatability.
C1 [Eng, C. H.] Singapore Technol Kinet Ltd, Singapore, Singapore.
[Jenn, D. C.; Broadston, R.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Eng, CH (reprint author), Singapore Technol Kinet Ltd, Singapore, Singapore.
EM jenn@nps.edu
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1045-9243
J9 IEEE ANTENN PROPAG M
JI IEEE Antennas Propag. Mag.
PD OCT
PY 2010
VL 52
IS 5
BP 174
EP 178
DI 10.1109/MAP.2010.5687496
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 708VL
UT WOS:000286392300010
ER
PT J
AU Chu, PC
Kuo, YH
AF Chu, Peter C.
Kuo, Yu-Heng
TI Nutrient pumping/advection by propagating Rossby Waves in the Kuroshio
Extension
SO DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
LA English
DT Article
DE Rossby wave propagation; Kuroshio extention; Nutrient pumping/advection;
Meso-scale eddies; Sea level anomaly; Chlorophyll-a concentration
ID GULF-STREAM; VARIABILITY; ALTIMETER; EDDIES
AB Ten years (1998-2007) of sea-level anomalies (SLA) from multiple satellite altimeters and chlorophyll-a concentration from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) were used to detect eddy pumping/advection of nutrients by the action of propagating Rossby waves in the Kuroshio Extension (ME) region near 35 degrees N after the seasonal SeaWiFS chlorophyll-a (Chl-a) concentrations cycles and annual changes of altimeter SLA were eliminated. Spatial structure of Chl-a anomalies to the seasonal cycle is examined in relation to altimeter eddy structure. Eddy propagation speeds and scales by the Rossby waves are also identified. Chl-a structure is evident during the spring bloom period with a scale around 460 km. Cold-core (cyclonic) rings correspond to areas of high Chl-a concentrations. Warm-core (anticyclonic) rings relate to areas of low Chl-a concentration. Chl-a anomalies and SLA have an overall modest negative correlation coefficient of r=-0.45, which may imply the co-existence of both eddy pumping and eddy advection mechanisms in the ME region. Swirl currents between eddies redistribute surface chlorophyll concentrations and can spatially bias maximum and minimum concentration levels off eddy center. The correlation coefficient has seasonal fluctuations. In the western ME region, it varies from high negative correlation (r=-0.70) in April and September (eddy pumping dominant) to low negative correlation (r=-0.33) in February and March (eddy advection dominant). In the eastern ME region, it varies from high negative correlation (r=-0.67) in February to low negative correlation (r=-0.42) in December. It is noted that the characteristic wavelengths of the SLA and Chl-a features, and the seasonality of the correlation between these two variables have not been previously documented. Published by Elsevier Ltd.
C1 [Chu, Peter C.; Kuo, Yu-Heng] USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Chu, PC (reprint author), USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM pcchu@nps.edu
FU Office of Naval Research
FX We thank the SeaWiFS Project Office for providing high resolution of
SeaWiFS data. Altimeter data were received from NASA. This research was
funded by the Office of Naval Research.
NR 15
TC 7
Z9 7
U1 0
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0967-0645
J9 DEEP-SEA RES PT II
JI Deep-Sea Res. Part II-Top. Stud. Oceanogr.
PD OCT
PY 2010
VL 57
IS 19-20
BP 1809
EP 1819
DI 10.1016/j.dsr2.2010.04.007
PG 11
WC Oceanography
SC Oceanography
GA 677GB
UT WOS:000283976000007
ER
PT J
AU Lou, JW
Currie, M
Sivaprakasam, V
Eversole, JD
AF Lou, Janet W.
Currie, Marc
Sivaprakasam, Vasanthi
Eversole, Jay D.
TI Green and ultraviolet pulse generation with a compact, fiber laser,
chirped-pulse amplification system for aerosol fluorescence measurements
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
AB We use a compact chirped-pulse amplified system to harmonically generate ultrashort pulses for aerosol fluorescence measurements. The seed laser is a compact, all-normal dispersion, mode-locked Yb-doped fiber laser with a 1050 nm center wavelength operating at 41 MHz. Average powers of more than 1.2 W at 525 nm and 350 mW at 262 nm are generated with < 500 fs pulse durations. The pulses are time-stretched with high-dispersion fiber, amplified by a high-power, large-mode-area fiber amplifier, and recompressed using a chirped volume holographic Bragg grating. The resulting high-peak-power pulses allow for highly efficient harmonic generation. We also demonstrate for the first time to our knowledge, the use of a mode-locked ultraviolet source to excite individual biological particles and other calibration particles in an inlet air flow as they pass through an optical chamber. The repetition rate is ideal for biofluorescence measurements as it allows faster sampling rates as well as the higher peak powers as compared to previously demonstrated Q-switched systems while maintaining a pulse period that is longer than the typical fluorescence lifetimes. Thus, the fluorescence excitation can be considered to be quasicontinuous and requires no external synchronization and triggering. (C) 2010 American Institute of Physics. [doi:10.1063/1.3488363]
C1 [Lou, Janet W.] Global Def Technology & Syst Inc, Mission Syst Div, Crofton, MD 21114 USA.
[Currie, Marc; Sivaprakasam, Vasanthi; Eversole, Jay D.] USN, Div Opt Sci, Res Lab, Washington, DC 20375 USA.
RP Lou, JW (reprint author), Global Def Technology & Syst Inc, Mission Syst Div, 2200 Def Highway,Suite 405, Crofton, MD 21114 USA.
EM janet.lou@gtec-inc.com
FU Defense Threat Reduction Agency Joint Science and Technology Office;
Office of Naval Research
FX This work was supported by the Defense Threat Reduction Agency Joint
Science and Technology Office and by the Office of Naval Research.
NR 7
TC 1
Z9 1
U1 0
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD OCT
PY 2010
VL 81
IS 10
AR 103107
DI 10.1063/1.3488363
PG 6
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 674NL
UT WOS:000283753400007
PM 21034075
ER
PT J
AU Goolsby, R
AF Goolsby, Rebecca
TI Social Media as Crisis Platform: The Future of Community Maps/Crisis
Maps
SO ACM TRANSACTIONS ON INTELLIGENT SYSTEMS AND TECHNOLOGY
LA English
DT Article
DE Social networking; crisis mapping; disaster management; information
tools; visualization; maps; Haiti; Mumbai
C1 Off Naval Res, Arlington, VA 22207 USA.
RP Goolsby, R (reprint author), Off Naval Res, 875 North Randolph St,Code 341,Suite 1425, Arlington, VA 22207 USA.
EM Rebecca.Goolsby@navy.mil
NR 5
TC 20
Z9 20
U1 1
U2 15
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 2157-6904
EI 2157-6912
J9 ACM T INTEL SYST TEC
JI ACM Trans. Intell. Syst. Technol.
PD OCT
PY 2010
VL 1
IS 1
AR 7
DI 10.1145/1858948.1858955
PG 11
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems
SC Computer Science
GA V33BL
UT WOS:000208994200007
ER
PT J
AU North, SH
Lock, EH
Cooper, CJ
Franek, JB
Taitt, CR
Walton, SG
AF North, Stella H.
Lock, Evgeniya H.
Cooper, Candace J.
Franek, James B.
Taitt, Chris R.
Walton, Scott G.
TI Plasma-Based Surface Modification of Polystyrene Microtiter Plates for
Covalent Immobilization of Biomolecules
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE polystyrene; microtiter plate; argon plasma; silanization; surface
characterization; surface functionalization
ID LINKED-IMMUNOSORBENT-ASSAY; BEAM-GENERATED PLASMAS; ANTIMICROBIAL
PEPTIDES; PROTEIN ADSORPTION; TOF-SIMS; MICROARRAYS; XPS; IMMUNOASSAYS;
ATTACHMENT; CHEMISTRY
AB In recent years, polymer surfaces have become increasingly popular for biomolecule attachment because of their relatively low cost and desirable bulk physicochemical characteristics. However, the chemical inertness of some polymer surfaces poses an obstacle to more expansive implementation of polymer materials in bioanalytical applications. We describe use of argon plasma to generate reactive hydroxyl moieties at the surface of polystyrene microtiter plates. The plates are then selectively functionalized with silanes and cross-linkers suitable for the covalent immobilization of biomolecules. This plasma-based method for microtiter plate functionalization was evaluated after each step by X-ray photoelectron spectroscopy, water contact angle analysis, atomic force microscopy, and bioimmobilization efficacy. We further demonstrate that the plasma treatment followed by silane derivatization supports direct, covalent immobilization of biomolecules on microtiter plates and thus overcomes challenging issues typically associated with simple physisorption. Importantly, biomolecules covalently immobilized onto microtiter plates using this plasma-based method retained functionality and demonstrated attachment efficiency comparable to commercial preactivated microtiter plates.
C1 [Lock, Evgeniya H.; Cooper, Candace J.; Franek, James B.; Walton, Scott G.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[North, Stella H.; Taitt, Chris R.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Franek, James B.] Global Strategies Grp N America Inc, Crofton, MD 21114 USA.
RP Lock, EH (reprint author), USN, Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM evgeniya.lock@nrl.navy.mil
FU American Society of Engineering Education; NSF; Joint Science &
Technology Office for Chemical & Biological Defense/Defense Threat
Reduction Agency; Office of Naval Research
FX S.H.N. is a recipient of an American Society of Engineering Education
postdoctoral fellowship. C.J.C. was supported by an NSF Historically
Black Colleges and Universities-Tribal College or University internship
program. This work is funded by Joint Science & Technology Office for
Chemical & Biological Defense/Defense Threat Reduction Agency and the
Office of Naval Research. The views expressed here are those of the
authors and do not represent the opinions of the U.S. Navy, the U.S.
Department of Defense, or the U.S. government.
NR 36
TC 25
Z9 25
U1 6
U2 32
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1944-8244
J9 ACS APPL MATER INTER
JI ACS Appl. Mater. Interfaces
PD OCT
PY 2010
VL 2
IS 10
BP 2884
EP 2891
DI 10.1021/am100566e
PG 8
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 670XP
UT WOS:000283463700033
PM 20879718
ER
PT J
AU Dileo, RA
Castiglia, A
Ganter, MJ
Rogers, RE
Cress, CD
Raffaelle, RP
Landi, BJ
AF DiLeo, Roberta A.
Castiglia, Anthony
Ganter, Matthew J.
Rogers, Reginald E.
Cress, Cory D.
Raffaelle, Ryne P.
Landi, Brian J.
TI Enhanced Capacity and Rate Capability of Carbon Nanotube Based Anodes
with Titanium Contacts for Lithium Ion Batteries
SO ACS NANO
LA English
DT Article
DE lithium ion batteries; carbon nanotubes; free-standing anodes; germanium
anodes; titanium contacts
ID ELECTROCHEMICAL LI INSERTION; FIELD-EFFECT TRANSISTORS; CATALYTIC
DECOMPOSITION; WORK FUNCTION; METAL; ENERGY; INTERCALATION; ELECTRODES;
RESISTANCE; EMISSION
AB Carbon nanotubes are being considered for adoption in lithium ion batteries as both a current collector support for high-capacity active materials (replacing traditional metal foils) and as free-standing electrodes where they simultaneously store lithium ions. The necessity to establish good electrical contact to these novel electrode designs is critical for success. In this work, application of nickel and titanium as both separable and thin film electrical contacts to free-standing single-wall carbon nanotube (SWCNT) electrodes is shown to dramatically enhance both the reversible lithium ion capacity and rate capability in comparison with stainless steel. Scanning electron microscopy showed that evaporation of Ni and Ti can effectively coat the SWCNT bundles in a bulk electrode which is capable of providing an improved electrical contact. A thin film of titanium emerged as the preferred electrical contact promoting the highest capacity ever measured for a SWCNT free-standing electrode of 1250 mAh/g. In addition, the titanium contacting approach demonstrated a 5-fold improvement in lithium ion capacity at extraction rates greater than 1C for a high-energy density Ge-SWCNT electrode. The overall performance improvement with Ti contacts is attributed to a lower contact resistance, nanoscale "wetting" of SWCNT bundles to improve contact uniformity, and effective electron coupling between Ti and SWCNTs due to work function-energy level alignment. The experimental results provide the basis for a Ragone analysis (power vs energy parameters), whereby Ge-SWCNT-Ti anodes paired with a LiFePO(4) cathode can lead to a 60% improvement over conventional graphite anodes in both power and energy density for a complete battery.
C1 [Landi, Brian J.] Rochester Inst Technol, Rochester, NY 14623 USA.
Natl Renewable Energy Lab, Golden, CO USA.
USN, Res Lab, Washington, DC 20375 USA.
RP Landi, BJ (reprint author), Rochester Inst Technol, 156 Lomb Mem Dr, Rochester, NY 14623 USA.
EM brian.landi@rit.edu
RI Cress, Cory/A-8673-2009; Rogers Jr, Reginald/F-4757-2012;
OI Cress, Cory/0000-0001-7563-6693
FU U.S. Government; Lockheed Martin; GAANN; NRL
FX The authors acknowledge financial support from the U.S. Government and
Lockheed Martin. R.A.D. acknowledges graduate student funding from a
GAANN fellowship through the RIT Microsystems Engineering PhD program.
C.D.C. acknowledges financial support from the NRL Karles Distinguished
Scholar Fellowship Program. The authors would like to thank Dr. Sean
Rommel and David Pawlik for their assistance with the use of the LEO EVO
50 microscope, Tom Mastrangelo for his experimental assistance with the
SWCNTs, and Jack Alvarenga and Chris Schauerman for their helpful
discussions regarding this work.
NR 90
TC 37
Z9 37
U1 3
U2 67
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD OCT
PY 2010
VL 4
IS 10
BP 6121
EP 6131
DI 10.1021/nn1018494
PG 11
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 670UV
UT WOS:000283453700083
PM 20857949
ER
PT J
AU Gresens, J
Rhodes, D
Smith, J
Gentry, A
AF Gresens, Joseph
Rhodes, Dolores
Smith, John
Gentry, Andrew
TI Evaluation of Possible Association Between Statins and Abnormal
Esophageal Motility
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 75th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 15-20, 2010
CL San Antonio, TX
SP Amer Coll Gastroenterol
C1 [Gresens, Joseph; Rhodes, Dolores; Smith, John; Gentry, Andrew] USN, Med Ctr, Portsmouth, VA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2010
VL 105
SU 1
MA 1346
BP S498
EP S498
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 663VG
UT WOS:000282917701535
ER
PT J
AU Porter, C
Pimentel, M
Cash, B
Akinseye, T
Riddle, M
AF Porter, Chad
Pimentel, Mark
Cash, Brooks
Akinseye, Tunde
Riddle, Mark
TI Increased Risk for IGE Among Those with IBS
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 75th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 15-20, 2010
CL San Antonio, TX
SP Amer Coll Gastroenterol
C1 [Porter, Chad; Riddle, Mark] USN, Med Res Ctr, Silver Spring, MD USA.
[Pimentel, Mark] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA.
[Cash, Brooks] Natl Naval Med Ctr, Bethesda, MD USA.
[Akinseye, Tunde] George Washington Univ, Washington, DC USA.
RI Riddle, Mark/A-8029-2011
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2010
VL 105
SU 1
MA 1338
BP S494
EP S494
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 663VG
UT WOS:000282917701528
ER
PT J
AU Porter, C
Gloor, K
Riddle, M
AF Porter, Chad
Gloor, Kayleen
Riddle, Mark
TI Risk of Functional Gastrointestinal Disorders in US Military Following
Self-reported Diarrhea During Deployment
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 75th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 15-20, 2010
CL San Antonio, TX
SP Amer Coll Gastroenterol
C1 [Porter, Chad; Riddle, Mark] USN, Med Res Ctr, Silver Spring, MD USA.
[Gloor, Kayleen] George Washington Univ, Washington, DC USA.
RI Riddle, Mark/A-8029-2011
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2010
VL 105
SU 1
MA 1336
BP S493
EP S494
PG 2
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 663VG
UT WOS:000282917701526
ER
PT J
AU Porter, C
Pimentel, M
Cash, B
Akinseye, T
Riddle, M
AF Porter, Chad
Pimentel, Mark
Cash, Brooks
Akinseye, Tunde
Riddle, Mark
TI Increased Risk of IBD Among Military Personnel with IBS
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 75th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 15-20, 2010
CL San Antonio, TX
SP Amer Coll Gastroenterol
C1 [Porter, Chad; Riddle, Mark] USN, Med Res Ctr, Silver Spring, MD USA.
[Pimentel, Mark] Cedars Sinai Med Ctr, Los Angeles, CA 90048 USA.
[Cash, Brooks] USN, Med Ctr, Bethesda, MD 20814 USA.
[Akinseye, Tunde] George Washington Univ, Washington, DC USA.
RI Riddle, Mark/A-8029-2011
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2010
VL 105
SU 1
MA 1251
BP S460
EP S460
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 663VG
UT WOS:000282917701442
ER
PT J
AU Smith, J
Harris, N
AF Smith, John
Harris, Nieka
TI Yield of Index Colonoscopy Screening in Patients Under 50 Years of Age
Who Have a Family History of Colon Cancer: A Validation of Current
Screening Recommendations
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 75th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 15-20, 2010
CL San Antonio, TX
SP Amer Coll Gastroenterol
C1 [Smith, John; Harris, Nieka] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2010
VL 105
SU 1
MA 1483
BP S551
EP S551
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 663VG
UT WOS:000282917701670
ER
PT J
AU Hsiao, M
Owens, BD
Burks, R
Sturdivant, RX
Cameron, KL
AF Hsiao, Mark
Owens, Brett D.
Burks, Robert
Sturdivant, Rodney X.
Cameron, Kenneth L.
TI Incidence of Acute Traumatic Patellar Dislocation Among Active-Duty
United States Military Service Members
SO AMERICAN JOURNAL OF SPORTS MEDICINE
LA English
DT Article
DE patella; dislocation; epidemiology; risk factors
ID ANTERIOR CRUCIATE LIGAMENT; RISK-FACTORS; CONSERVATIVE TREATMENT;
NATURAL-HISTORY; PUBLIC-HEALTH; INJURY; ARMY; OSTEOARTHRITIS;
REDISLOCATION; EPIDEMIOLOGY
AB Background: Although some studies have reported an increased incidence of patellar dislocations within active populations, few studies have reported incidence rates and examined risk factors for this injury.
Purpose: To examine the incidence of patellar dislocation injuries and the influence of demographic and occupational risk factors associated with injury among active-duty United States (US) service members between 1998 and 2007. Study Design: Cohort study; Level of evidence, 3.
Methods: Using the Defense Medical Surveillance System, a search was performed for International Classification of Disease, 9th Revision (ICD-9) code 836.3 among all US service members on active duty during the study period. Multivariable Poisson regression analysis was used to estimate the rate of patellar dislocation per 1000 person-years at risk to injury. Incidence rates (IRs) and incidence rate ratios (IRRs) for patellar dislocation along with 95% confidence intervals (CIs) were estimated by gender, age, race, branch of military service, and rank while controlling for the other variables in the model.
Results: There were a total of 9299 individuals with documented patellar dislocation injuries among a population at risk of 13 443 448 person-years. The IR was 0.69 per 1000 person-years at risk. Women were 61% more likely (IRR, 1.61; 95% CI, 1.53-1.69) to sustain a patellar dislocation injury than men. Rates were highest in the youngest age group and decreased with increasing age. Service members aged <20 years were 84% more likely (IRR, 1.84; 95% CI, 1.61-2.10) to sustain a patellar dislocation injury as service members aged >= 40 years. Differences were also noted by race, service, and rank.
Conclusion: The incidence of patellar dislocation injuries among US service members was an order of magnitude greater than that previously reported in civilian population studies. Gender, age, race, rank, and branch of military service are important risk factors related to the incidence of patellar dislocation injuries in this population.
C1 [Hsiao, Mark; Owens, Brett D.; Cameron, Kenneth L.] Keller Army Hosp, Dept Orthoped Surg, West Point, NY 10996 USA.
[Burks, Robert] USN, Postgrad Sch, Dept Operat Res, Monterey, CA USA.
[Sturdivant, Rodney X.] US Mil Acad, Dept Math, West Point, NY 10996 USA.
RP Cameron, KL (reprint author), Keller Army Hosp, Dept Orthopaed Res, 900 Washington Ave, West Point, NY 10996 USA.
EM kenneth.cameron@amedd.army.mil
RI Burks, Robert/J-2481-2015;
OI Burks, Robert/0000-0001-6443-6653; Cameron, Kenneth/0000-0002-6276-4482
NR 37
TC 32
Z9 37
U1 0
U2 1
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0363-5465
J9 AM J SPORT MED
JI Am. J. Sports Med.
PD OCT
PY 2010
VL 38
IS 10
BP 1997
EP 2004
DI 10.1177/0363546510371423
PG 8
WC Orthopedics; Sport Sciences
SC Orthopedics; Sport Sciences
GA 656VQ
UT WOS:000282369600005
PM 20616375
ER
PT J
AU Segev, DL
Gentry, SE
AF Segev, D. L.
Gentry, S. E.
TI Terminology Influences Many Aspects of the Market/Incentives Debate
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Letter
DE Kidney exchanges; nondirected organ donation; organ sales; organ
shortage; paired kidney exchange
ID UNITED-STATES; KIDNEY; DONATION
C1 [Segev, D. L.; Gentry, S. E.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Segev, D. L.] Johns Hopkins Univ, Sch Publ Hlth, Dept Epidemiol, Baltimore, MD 21205 USA.
[Gentry, S. E.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Segev, DL (reprint author), Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
NR 6
TC 0
Z9 0
U1 0
U2 1
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD OCT
PY 2010
VL 10
IS 10
BP 2375
EP 2375
DI 10.1111/j.1600-6143.2010.03221.x
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 655CN
UT WOS:000282220400029
ER
PT J
AU Melde, BJ
Johnson, BJ
AF Melde, Brian J.
Johnson, Brandy J.
TI Mesoporous materials in sensing: morphology and functionality at the
meso-interface
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Review
DE Mesopore; Micropore; Morphology; Surfactant-template; Imprint; Metal
oxide
ID GLASSY-CARBON ELECTRODE; THIN-FILMS; NANOPOROUS ORGANOSILICAS;
MOLECULAR-SIEVES; GAS SENSORS; ELECTROCHEMICAL DETECTION; DISPLACEMENT
ASSAYS; SILICATE MATERIALS; NANOSENSOR DESIGN; OPTICAL-DETECTION
AB Mesoporous materials are finding increasing utility in sensing applications. These applications can benefit from a surface area that may exceed 1,000 m(2) g(-1) and fast diffusion of analytes through a porous structure. This article reviews recent developments in mesoporous materials-based sensing and provides examples of the impact of different surface functionality, pore structure, and macro-morphology in an attempt to illustrate the contribution of these factors to the selectivity and sensitivity of a sensor response. The materials discussed include ordered mesoporous silicates synthesized with surfactants, hard templated ordered mesoporous carbons, and metal oxides with porous textures which have been applied to advantage in various detection schemes. Chemical functionalization of mesoporous materials through silane grafting, co-condensation, and adsorption are also addressed.
C1 [Melde, Brian J.; Johnson, Brandy J.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Johnson, BJ (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
EM brandy.white@nrl.navy.mil
RI Johnson, Brandy/B-3462-2008
OI Johnson, Brandy/0000-0002-3637-0631
FU US Defense Threat Reduction Agency (DTRA) [BA08PRO015]; US DoD [ER-1604]
FX This research was sponsored by the US Defense Threat Reduction Agency
(DTRA; BA08PRO015) and the US DoD Strategic Environmental Research and
Development Program (SERDP; ER-1604). The views expressed here are those
of the authors and do not represent those of the US Navy, the US
Department of Defense, or the US Government.
NR 99
TC 69
Z9 70
U1 8
U2 106
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD OCT
PY 2010
VL 398
IS 4
BP 1565
EP 1573
DI 10.1007/s00216-010-3688-6
PG 9
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 653KM
UT WOS:000282090000003
PM 20393838
ER
PT J
AU Kuhn, JJ
Clenney, T
AF Kuhn, Jeffery J.
Clenney, Timothy
TI The Association Between Semicircular Canal Dehiscence and Chiari Type I
Malformation
SO ARCHIVES OF OTOLARYNGOLOGY-HEAD & NECK SURGERY
LA English
DT Article
ID POSTERIOR CRANIAL FOSSA; OPERATIVE MANAGEMENT; PEDIATRIC POPULATION;
BILATERAL DEHISCENCE; SUPERIOR; MANIFESTATIONS; DECOMPRESSION;
PATHOGENESIS
AB Objective: To investigate the association between semicircular canal dehiscence (SCD) and Chiari type I malformation (CM-I).
Design: Retrospective case series.
Setting: Military tertiary referral center.
Patients: Adult patients with SCD.
Intervention: Review of records of patients diagnosed as having SCD for the radiologic diagnosis of CM-I and presenting symptoms.
Main Outcome Measures: The prevalence of CM-I among patients with SCD and the presenting symptoms of patients with SCD with and without a coexistent CM-I.
Results: Of 32 patients diagnosed as having SCD, 30 underwent magnetic resonance imaging of the brain. Seven patients (23%; 95% confidence interval [CI], 12%-41%) were found to have a CM-I. Chiari type I malformation was associated with superior SCD in 3 of 26 patients (12%; 95% CI, 3%-30%). Of 10 patients with bilateral superior SCD, 2 (20%; 95% CI, 5%-52%) had a CM-I. Five of 6 patients (83%; 95% CI, 42%-99%) had a CM-I with unilateral or bilateral posterior SCD. Twenty-nine records were reviewed for presenting symptoms, and no significant difference was observed between patients with SCD alone and those with an associated CM-I (P=.09-.64).
Conclusions: Among patients with SCD, the prevalence of CM-I is elevated. This association is especially marked in patients with posterior SCD. This finding suggests a relationship between CM-I and SCD, particularly with posterior SCD.
C1 [Kuhn, Jeffery J.] USN, Dept Otolaryngol Head & Neck Surg, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
[Clenney, Timothy] USN, Med Corps US Navy, Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Kuhn, JJ (reprint author), USN, Dept Otolaryngol Head & Neck Surg, Med Ctr Portsmouth, 620 John Paul Jones Cir, Portsmouth, VA 23708 USA.
EM Jeffery.Kuhn@med.navy.mil
NR 43
TC 4
Z9 4
U1 0
U2 4
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 515 N STATE ST, CHICAGO, IL 60610-0946 USA
SN 0886-4470
J9 ARCH OTOLARYNGOL
JI Arch. Otolaryngol. Head Neck Surg.
PD OCT
PY 2010
VL 136
IS 10
BP 1009
EP 1014
DI 10.1001/archoto.2010.169
PG 6
WC Otorhinolaryngology; Surgery
SC Otorhinolaryngology; Surgery
GA 665DT
UT WOS:000283016100012
PM 20956749
ER
PT J
AU Simons, A
AF Simons, Anna
TI The Culture of War
SO ARMED FORCES & SOCIETY
LA English
DT Book Review
C1 [Simons, Anna] USN, Postgrad Sch, Monterey, CA USA.
RP Simons, A (reprint author), USN, Postgrad Sch, Monterey, CA USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0095-327X
J9 ARMED FORCES SOC
JI Armed Forces Soc.
PD OCT
PY 2010
VL 36
IS 5
BP 926
EP 930
DI 10.1177/0095327X09356257
PG 5
WC Political Science; Sociology
SC Government & Law; Sociology
GA 669PQ
UT WOS:000283363100009
ER
PT J
AU Sterling, AC
Chifor, C
Mason, HE
Moore, RL
Young, PR
AF Sterling, A. C.
Chifor, C.
Mason, H. E.
Moore, R. L.
Young, P. R.
TI Evidence for magnetic flux cancelation leading to an ejective solar
eruption observed by Hinode, TRACE, STEREO, and SoHO/MDI
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE Sun: filaments, prominences; Sun: coronal mass ejections (CMEs); Sun: UV
radiation; Sun: X-rays, gamma rays; Sun: flares
ID CORONAL MASS EJECTIONS; X-RAY TELESCOPE; EMERGING FLUX; ACTIVE-REGION;
FILAMENT ERUPTIONS; TRANSITION REGION; ATOMIC DATABASE; EMISSION-LINES;
SLOW-RISE; FLARES
AB Aims. We study the onset of a solar eruption involving a filament ejection on 2007 May 20.
Methods. We observe the filament in Ha images from Hinode/SOT and in EUV with TRACE and STEREO/SECCHI/EUVI. Hinode/XRT images are used to study the eruption in soft X-rays. From spectroscopic data taken with Hinode/EIS we obtain bulk-flow velocities, line profiles, and plasma densities in the onset region. The magnetic field evolution was observed in SoHO/MDI magnetograms.
Results. We observed a converging motion between two opposite polarity sunspots that form the primary magnetic polarity inversion line (PIL), along which resides filament material before eruption. Positive-flux magnetic elements, perhaps moving magnetic features (MMFs) flowing from the spot region, appear north of the spots, and the eruption onset occurs where these features cancel repeatedly in a negative-polarity region north of the sunspots. An ejection of material observed in H alpha and EUV marks the start of the filament eruption (its "fast-rise"). The start of the ejection is accompanied by a sudden brightening across the PIL at the jet's base, observed in both broad-band images and in EIS. Small-scale transient brightenings covering a wide temperature range (Log T-e = 4.8-6.3) are also observed in the onset region prior to eruption. The preflare transient brightenings are characterized by sudden, localized density enhancements (to above Log n(e) [cm(-3)] = 9.75, in Fe XIII) that appear along the PIL during a time when pre-flare brightenings were occurring. The measured densities in the eruption onset region outside the times of those enhancements decrease with temperature. Persistent downflows (red-shifts) and line-broadening (Fe XII) are present along the PIL.
Conclusions. The array of observations is consistent with the pre-eruption sheared-core magnetic field being gradually destabilized by evolutionary tether-cutting flux cancelation that was driven by converging photospheric flows, and the main filament ejection being triggered by flux cancelation between the positive flux elements and the surrounding negative field. A definitive statement however on the eruption's ultimate cause would require comparison with simulations, or additional detailed observations of other eruptions occurring in similar magnetic circumstances.
C1 [Sterling, A. C.; Moore, R. L.] NASA, George C Marshall Space Flight Ctr, Space Sci Off VP62, Huntsville, AL 35805 USA.
[Chifor, C.; Mason, H. E.] CMS, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England.
[Young, P. R.] George Mason Univ, Fairfax, VA 22030 USA.
[Young, P. R.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Sterling, AC (reprint author), JAXA Inst Space & Astronaut Sci, Hinode Grp, Chuo Ku, Yoshinodai 3-1-1, Kanagawa 2525210, Japan.
EM alphonse.sterling@nasa.gov; cristina.chifor@gmail.com
FU University of Cambridge Overseas Trust; Isaac Newton Studentship; NASA;
STFC
FX We thank L. M. Green for useful discussions, D. Zarro for helpful
software assistance, and T. Durgesh for assistance with graphics. We
also thank an anonymous referee for helpful comments in an earlier
version of this paper. Hinode is a Japanese mission developed and
launched by ISAS/JAXA, collaborating with NAOJ as a domestic partner and
NASA and STFC (UK) as international partners. It is operated by these
agencies in co-operation with ESA and NSC (Norway). C.C. is grateful for
support received from the University of Cambridge Overseas Trust and an
Isaac Newton Studentship. A.C.S. and R.L.M. received support from NASA's
Solar Physics Supporting Research and Technology, Heliophysics Guest
Investigators, and Living With a Star programs. H.E.M. acknowledges
support from STFC.
NR 66
TC 21
Z9 21
U1 0
U2 1
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 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD OCT
PY 2010
VL 521
AR A49
DI 10.1051/0004-6361/201014006
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 679GW
UT WOS:000284150900110
ER
PT J
AU Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bonamente, E
Borgland, AW
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Corbel, S
Cutini, S
D'Ammando, F
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Escande, L
Favuzzi, C
Fegan, SJ
Ferrara, EC
Fuhrmann, L
Fukazawa, Y
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grove, JE
Guiriec, S
Hadasch, D
Hayashida, M
Hays, E
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lee, SH
Garde, ML
Longo, F
Loparco, F
Lott, B
Lubrano, P
Madejski, GM
Makeev, A
Marchili, N
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nalewajko, K
Naumann-Godo, M
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reyes, LC
Ripken, J
Ritz, S
Roth, M
Sadrozinski, HFW
Sanchez, D
Sander, A
Scargle, JD
Sgro, C
Sikora, M
Siskind, EJ
Spandre, G
Spinelli, P
Strickman, MS
Suson, DJ
Takahashi, H
Takahashi, T
Tanaka, T
Tanaka, Y
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Usher, TL
Vandenbroucke, J
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Wehrle, AE
Winer, BL
Yang, Z
Ylinen, T
Ziegler, M
AF Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Corbel, S.
Cutini, S.
D'Ammando, F.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Escande, L.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Fuhrmann, L.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Hayashida, M.
Hays, E.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lee, S. -H.
Garde, M. Llena
Longo, F.
Loparco, F.
Lott, B.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Marchili, N.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nalewajko, K.
Naumann-Godo, M.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reyes, L. C.
Ripken, J.
Ritz, S.
Roth, M.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Scargle, J. D.
Sgro, C.
Sikora, M.
Siskind, E. J.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Tanaka, Y.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Usher, T. L.
Vandenbroucke, J.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Wehrle, A. E.
Winer, B. L.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI FERMI GAMMA-RAY SPACE TELESCOPE OBSERVATIONS OF GAMMA-RAY OUTBURSTS FROM
3C 454.3 IN 2009 DECEMBER AND 2010 APRIL
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; gamma rays: galaxies; quasars: individual (3C 454.3)
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; BLAZAR 3C-454.3;
MULTIWAVELENGTH OBSERVATIONS; INFRARED OBSERVATIONS; CRAZY-DIAMOND;
FLARE; VARIABILITY; COMPTON; SYNCHROTRON
AB The flat spectrum radio quasar 3C 454.3 underwent an extraordinary outburst in 2009 December when it became the brightest gamma-ray source in the sky for over 1 week. Its daily flux measured with the Fermi-Large Area Telescope at photon energiesE > 100 MeV reached F-100 = 22 +/- 1 x 10(6) photon cm(-2) s(-1), representing the highest daily flux of any blazar ever recorded in high-energy. -rays. It again became the brightest source in the sky in 2010 April, triggering a pointed-mode observation by Fermi. The correlated. -ray temporal and spectral properties during these exceptional events are presented and discussed. The main results show flux variability over time scales less than 3 hr and very mild spectral variability with an indication of gradual hardening preceding major flares. The light curves during periods of enhanced activity in 2008 July-August and 2010 December show strong resemblance, with a flux plateau of a few days preceding the major flare. No consistent loop pattern emerged in the. -ray spectral index versus the flux plane as would be expected in acceleration and cooling scenarios. The maximum energy of a photon from 3C 454.3 is approximate to 20 GeV and a minimum Doppler factor of approximate to 13 is derived. The gamma-ray spectrum of 3C 454.3 shows a significant spectral break between approximate to 2 and 3 GeV that is very weakly dependent on the flux state, even when the flux changes by an order of magnitude.
C1 [Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Borgland, A. W.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Borgland, A. W.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Kuss, M.; Latronico, L.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Corbel, S.; Grenier, I. A.; Naumann-Godo, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, CNRS, Lab AIM,CEA,IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Burnett, T. H.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Hadasch, D.; Torres, D. F.] IEEC CSIC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.; Giommi, P.] Sci Data Ctr, ASI, I-00044 Rome, Italy.
[Celik, Oe; Ferrara, E. C.; Gehrels, N.; Hays, E.; McEnery, J. E.; Thompson, D. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe] NASA, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Makeev, A.; Strickman, M. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Cohen-Tanugi, J.; Mehault, J.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, Lab Phys Theor & Astroparticles, IN2P3, Montpellier, France.
[Corbel, S.] Inst Univ France, F-75005 Paris, France.
[D'Ammando, F.] IASF Palermo, I-90146 Palermo, Italy.
[D'Ammando, F.] INAF Ist Astrofis Spaziale & Fis Cosm, I-00133 Rome, Italy.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-00133 Rome, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-00133 Rome, Italy.
[Dumora, D.; Escande, L.; Lott, B.] Univ Bordeaux 1, CNRS, Ctr Etud Nucl Bordeaux Gradignan, IN2P3, F-33175 Gradignan, France.
[Fuhrmann, L.; Marchili, N.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Giroletti, M.] INAF, Ist Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Kataoka, J.; Nakamori, T.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Larsson, S.; Garde, M. Llena; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Larsson, S.; Garde, M. Llena; Ripken, J.; Yang, Z.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Nalewajko, K.; Sikora, M.] Nicolaus Copernicus Astron Ctr, PL-00716 Warsaw, Poland.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Okumura, A.; Takahashi, T.; Tanaka, Y.] JAXA, Inst Space & Astronaut Sci, Kanagawa 2298510, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reyes, L. C.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Sander, A.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wehrle, A. E.] Space Sci Inst, Boulder, CO 80301 USA.
[Ylinen, T.] Royal Inst Technol KTH, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Ackermann, M (reprint author), Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
EM charles.dermer@nrl.navy.mil; escande@cenbg.in2p3.fr;
lott@cenbg.in2p3.fr; tanaka@astro.isas.jaxa.jp
RI Thompson, David/D-2939-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Rando, Riccardo/M-7179-2013;
Hays, Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Gargano,
Fabio/O-8934-2015; Johannesson, Gudlaugur/O-8741-2015; Loparco,
Francesco/O-8847-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Orlando, E/R-5594-2016;
OI Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385;
Gargano, Fabio/0000-0002-5055-6395; Johannesson,
Gudlaugur/0000-0003-1458-7036; Loparco, Francesco/0000-0002-1173-5673;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; giommi,
paolo/0000-0002-2265-5003; De Angelis, Alessandro/0000-0002-3288-2517;
Caraveo, Patrizia/0000-0003-2478-8018; Bastieri,
Denis/0000-0002-6954-8862; Giroletti, Marcello/0000-0002-8657-8852;
Cutini, Sara/0000-0002-1271-2924; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU Department of Energy in the United States; Commissariate a l'Energie
Atomique; Centre National de la Recherche Scientifique/Institut National
de Physique Nucleaire et de Physique des Particules in France
FX The Fermi-LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariate a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish
Research Council, and the Swedish National Space Board in Sweden.
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 56
TC 85
Z9 85
U1 0
U2 7
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 OCT 1
PY 2010
VL 721
IS 2
BP 1383
EP 1396
DI 10.1088/0004-637X/721/2/1383
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 654TP
UT WOS:000282193600036
ER
PT J
AU Abdo, AA
Ackermann, M
Agudo, I
Ajello, M
Allafort, A
Aller, HD
Aller, MF
Antolini, E
Arkharov, AA
Axelsson, M
Bach, U
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berdyugin, A
Berenji, B
Blandford, RD
Blinov, DA
Bloom, ED
Boettcher, M
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Buemi, CS
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carosati, D
Carrigan, S
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Chen, WP
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Corbel, S
Costamante, L
Dermer, CD
de Angelis, A
de Palma, F
Donato, D
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Forne, E
Fortin, P
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grove, JE
Guiriec, S
Gurwell, MA
Gusbar, C
Gomez, JL
Hadasch, D
Hagen-Thorn, VA
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kimeridze, G
Knodlseder, J
Konstantinova, TS
Kopatskaya, EN
Koptelova, E
Kovalev, YY
Kurtanidze, OM
Kuss, M
Lahteenmaki, A
Lande, J
Larionov, VM
Larionova, EG
Larionova, LV
Larsson, S
Latronico, L
Lee, SH
Leto, P
Lister, ML
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Massaro, E
Mazziotta, MN
McConville, W
McEnery, JE
McHardy, IM
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morozova, DA
Morselli, A
Moskalenko, IV
Murgia, S
Naumann-Godo, M
Nikolashvili, MG
Nolan, PL
Norris, JP
Nuss, E
Ohno, M
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pasanen, M
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Pushkarev, AB
Raino, S
Raiteri, CM
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reinthal, R
Ripken, J
Ritz, S
Roca-Sogorb, M
Rodriguez, AY
Roth, M
Roustazadeh, P
Ryde, F
Sadrozinski, HFW
Sander, A
Scargle, JD
Sgro, C
Sigua, LA
Smith, PD
Sokolovsky, K
Spandre, G
Spinelli, P
Starck, JL
Strickman, MS
Suson, DJ
Takahashi, H
Takahashi, T
Takalo, LO
Tanaka, T
Taylor, B
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Tornikoski, M
Torres, DF
Tosti, G
Tramacere, A
Trigilio, C
Troitsky, IS
Umana, G
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vilchez, N
Villata, M
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yang, Z
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Agudo, I.
Ajello, M.
Allafort, A.
Aller, H. D.
Aller, M. F.
Antolini, E.
Arkharov, A. A.
Axelsson, M.
Bach, U.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berdyugin, A.
Berenji, B.
Blandford, R. D.
Blinov, D. A.
Bloom, E. D.
Boettcher, M.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Buemi, C. S.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carosati, D.
Carrigan, S.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Chekhtman, A.
Chen, W. P.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Corbel, S.
Costamante, L.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Donato, D.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Forne, E.
Fortin, P.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grove, J. E.
Guiriec, S.
Gurwell, M. A.
Gusbar, C.
Gomez, J. L.
Hadasch, D.
Hagen-Thorn, V. A.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kimeridze, G.
Knoedlseder, J.
Konstantinova, T. S.
Kopatskaya, E. N.
Koptelova, E.
Kovalev, Y. Y.
Kurtanidze, O. M.
Kuss, M.
Lahteenmaki, A.
Lande, J.
Larionov, V. M.
Larionova, E. G.
Larionova, L. V.
Larsson, S.
Latronico, L.
Lee, S. -H.
Leto, P.
Lister, M. L.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Massaro, E.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
McHardy, I. M.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morozova, D. A.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Naumann-Godo, M.
Nikolashvili, M. G.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohno, M.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pasanen, M.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Pushkarev, A. B.
Raino, S.
Raiteri, C. M.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reinthal, R.
Ripken, J.
Ritz, S.
Roca-Sogorb, M.
Rodriguez, A. Y.
Roth, M.
Roustazadeh, P.
Ryde, F.
Sadrozinski, H. F. -W.
Sander, A.
Scargle, J. D.
Sgro, C.
Sigua, L. A.
Smith, P. D.
Sokolovsky, K.
Spandre, G.
Spinelli, P.
Starck, J. -L.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Takahashi, T.
Takalo, L. O.
Tanaka, T.
Taylor, B.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Tornikoski, M.
Torres, D. F.
Tosti, G.
Tramacere, A.
Trigilio, C.
Troitsky, I. S.
Umana, G.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vilchez, N.
Villata, M.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yang, Z.
Ylinen, T.
Ziegler, M.
TI FERMI LARGE AREA TELESCOPE AND MULTI-WAVELENGTH OBSERVATIONS OF THE
FLARING ACTIVITY OF PKS 1510-089 BETWEEN 2008 SEPTEMBER AND 2009 JUNE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: jets; gamma rays: galaxies; quasars:
individual (PKS 1510-089)
ID GAMMA-RAY EMISSION; GALACTIC NUCLEI; X-RAY; SPECTRAL PROPERTIES;
RELATIVISTIC JET; COMPLETE SAMPLE; RADIO-SOURCES; EGRET DATA; 3C 454.3;
BLAZAR
AB We report on the multi-wavelength observations of PKS 1510-089 (a flat spectrum radio quasar (FSRQ) at z = 0.361) during its high activity period between 2008 September and 2009 June. During this 11 month period, the source was characterized by a complex variability at optical, UV, and gamma-ray bands, on timescales down to 6-12 hr. The brightest gamma-ray isotropic luminosity, recorded on 2009 March 26, was similar or equal to 2 x 1048 erg s-1. The spectrum in the Fermi Large Area Telescope energy range shows a mild curvature described well by a log-parabolic law, and can be understood as due to the Klein-Nishina effect. The. -ray flux has a complex correlation with the other wavelengths. There is no correlation at all with the X-ray band, a weak correlation with the UV, and a significant correlation with the optical flux. The. -ray flux seems to lead the optical one by about 13 days. From the UV photometry, we estimated a black hole mass of similar or equal to 5.4 x 10(8)M(circle dot) and an accretion rate of similar or equal to 0.5M(circle dot) yr(-1). Although the power in the thermal and non-thermal outputs is smaller compared to the very luminous and distant FSRQs, PKS 1510-089 exhibits a quite large Compton dominance and a prominent big blue bump (BBB) as observed in the most powerful gamma-ray quasars. The BBB was still prominent during the historical maximum optical state in 2009 May, but the optical/ UV spectral index was softer than in the quiescent state. This seems to indicate that the BBB was not completely dominated by the synchrotron emission during the highest optical state. We model the broadband spectrum assuming a leptonic scenario in which the inverse Compton emission is dominated by the scattering of soft photons produced externally to the jet. The resulting model-dependent jet energetic content is compatible with a scenario in which the jet is powered by the accretion disk, with a total efficiency within the Kerr black hole limit.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Costamante, L.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Buehler, R.; Cameron, R. A.; Chiang, J.; Claus, R.; Costamante, L.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Lee, S. -H.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Omodei, N.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Agudo, I.; Gomez, J. L.; Roca-Sogorb, M.] CSIC, Inst Astrofis Andalucia, Granada 18080, Spain.
[Agudo, I.] Boston Univ, Inst Astrophys Res, Boston, MA 02215 USA.
[Aller, H. D.; Aller, M. F.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
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[Antolini, E.; Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Arkharov, A. A.; Larionov, V. M.; Pushkarev, A. B.] Pulkovo Observ, St Petersburg 196140, Russia.
[Axelsson, M.; Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.] Lund Observ, SE-22100 Lund, Sweden.
[Axelsson, M.; Conrad, J.; Larsson, S.; Ripken, J.; Ryde, F.; Yang, Z.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Bach, U.; Kovalev, Y. Y.; Pushkarev, A. B.; Sokolovsky, K.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
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[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Berdyugin, A.; Pasanen, M.; Reinthal, R.; Takalo, L. O.] Univ Turku, Tuorla Observ, FI-21500 Piikkio, Finland.
[Blinov, D. A.; Hagen-Thorn, V. A.; Konstantinova, T. S.; Kopatskaya, E. N.; Larionov, V. M.; Larionova, E. G.; Larionova, L. V.; Morozova, D. A.; Nikolashvili, M. G.; Troitsky, I. S.] St Petersburg State Univ, Astron Inst, St Petersburg, Russia.
[Boettcher, M.; Gusbar, C.; Roustazadeh, P.] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Buemi, C. S.; Leto, P.; Trigilio, C.; Umana, G.] Osserv Astrofis Catania, I-95123 Catania, Italy.
[Burnett, T. H.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
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[Celik, Oe; Donato, D.; Ferrara, E. C.; Gehrels, N.; Hays, E.; McConville, W.; McEnery, J. E.; Thompson, D. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
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[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Conrad, J.; Larsson, S.; Ripken, J.; Yang, Z.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Corbel, S.] Inst Univ France, F-75005 Paris, France.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dumora, D.; Lott, B.] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Lott, B.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Forne, E.] Agrupaci Astron Sabadell, Sabadell 08206, Spain.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Giroletti, M.] Ist Radioastron, INAF, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Gurwell, M. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Hadasch, D.; Torres, D. F.] ICREA, Barcelona, Spain.
[Hagen-Thorn, V. A.; Larionov, V. M.] Isaac Newton Inst Chile, St Petersburg Branch, St Petersburg, Russia.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] Inst Phys & Chem Res RIKEN, Cosm Radiat Lab, Saitama 3510198, Japan.
[Kimeridze, G.; Kurtanidze, O. M.; Sigua, L. A.] Abastumani Observ, GE-0301 Abastumani, Rep of Georgia.
[Knoedlseder, J.; Vilchez, N.] Ctr Etud Spatiale Rayonnements, CNRS, UPS, F-31028 Toulouse 4, France.
[Kovalev, Y. Y.; Sokolovsky, K.] PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117810, Russia.
[Lahteenmaki, A.; Tornikoski, M.] Aalto Univ, Metsahovi Radio Observ, FIN-02540 Kylmala, Finland.
[Lister, M. L.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Massaro, E.] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy.
[McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[McHardy, I. M.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohno, M.; Okumura, A.; Ozaki, M.; Takahashi, T.] Inst Space & Astronaut Sci, JAXA, Kanagawa 2298510, Japan.
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[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Pushkarev, A. B.] Crimean Astrophys Observ, UA-98409 Nauchnyi, Ukraine.
[Raiteri, C. M.; Villata, M.] Osserv Astron Torino, INAF, I-10025 Pino Torinese, Italy.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
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[Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Ritz, S.; Sadrozinski, H. F. -W.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
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[Tramacere, A.] Consorzio Interuniversitario Fis Spaziale CIFS, I-10133 Turin, Italy.
[Tramacere, A.] INTEGRAL Sci Data Ctr, CH-1290 Versoix, Switzerland.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM enrico.massaro@uniroma1.it
RI Larionova, Elena/H-7287-2013; Starck, Jean-Luc/D-9467-2011; Thompson,
David/D-2939-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Kuss,
Michael/H-8959-2012; giglietto, nicola/I-8951-2012; Reimer,
Olaf/A-3117-2013; Tosti, Gino/E-9976-2013; Larionov, Valeri/H-1349-2013;
Kopatskaya, Evgenia/H-4720-2013; Blinov, Dmitry/G-9925-2013; Ozaki,
Masanobu/K-1165-2013; Rando, Riccardo/M-7179-2013; Kovalev,
Yuri/J-5671-2013; Lahteenmaki, Anne/L-5987-2013; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Kurtanidze,
Omar/J-6237-2014; Funk, Stefan/B-7629-2015; Sokolovsky,
Kirill/D-2246-2015; Agudo, Ivan/G-1701-2015; Morozova,
Daria/H-1298-2013; Troitskiy, Ivan/K-7979-2013; Grishina,
Tatiana/H-6873-2013; Hagen-Thorn, Vladimir/H-3983-2013; Johannesson,
Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; Pushkarev, Alexander/M-9997-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016;
OI Larionova, Elena/0000-0002-2471-6500; Starck,
Jean-Luc/0000-0003-2177-7794; Thompson, David/0000-0001-5217-9135;
lubrano, pasquale/0000-0003-0221-4806; Morselli,
Aldo/0000-0002-7704-9553; giglietto, nicola/0000-0002-9021-2888; Reimer,
Olaf/0000-0001-6953-1385; Larionov, Valeri/0000-0002-4640-4356;
Kopatskaya, Evgenia/0000-0001-9518-337X; Berenji,
Bijan/0000-0002-4551-772X; Gasparrini, Dario/0000-0002-5064-9495;
Tramacere, Andrea/0000-0002-8186-3793; Baldini,
Luca/0000-0002-9785-7726; Blinov, Dmitry/0000-0003-0611-5784; Kovalev,
Yuri/0000-0001-9303-3263; Funk, Stefan/0000-0002-2012-0080; Sokolovsky,
Kirill/0000-0001-5991-6863; Agudo, Ivan/0000-0002-3777-6182; Morozova,
Daria/0000-0002-9407-7804; Troitskiy, Ivan/0000-0002-4218-0148;
Grishina, Tatiana/0000-0002-3953-6676; Hagen-Thorn,
Vladimir/0000-0002-6431-8590; Johannesson,
Gudlaugur/0000-0003-1458-7036; Loparco, Francesco/0000-0002-1173-5673;
Gargano, Fabio/0000-0002-5055-6395; Moskalenko,
Igor/0000-0001-6141-458X; Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Buemi, Carla Simona/0000-0002-7288-4613;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Axelsson,
Magnus/0000-0003-4378-8785; Giroletti, Marcello/0000-0002-8657-8852;
Villata, Massimo/0000-0003-1743-6946; Giordano,
Francesco/0000-0002-8651-2394; Larionova, Liudmila/0000-0002-0274-1481;
De Angelis, Alessandro/0000-0002-3288-2517; Caraveo,
Patrizia/0000-0003-2478-8018; Leto, Paolo/0000-0003-4864-2806; Sgro',
Carmelo/0000-0001-5676-6214; Rando, Riccardo/0000-0001-6992-818X;
Raiteri, Claudia Maria/0000-0003-1784-2784
FU Russian Foundation for Basic Research [08- 0200545]
FX The Lebedev Physical Institute team was partly supported by the Russian
Foundation for Basic Research (project 08- 0200545). K. S. was supported
by stipend from the IMPRS for Astronomy and Astrophysics. We thank A. P.
Marscher and S. Jorstad for providing multi- wavelength data.
NR 78
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U1 1
U2 7
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 OCT 1
PY 2010
VL 721
IS 2
BP 1425
EP 1447
DI 10.1088/0004-637X/721/2/1425
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 654TP
UT WOS:000282193600041
ER
PT J
AU O'Connor, P
Walliser, J
Philips, E
AF O'Connor, Paul
Walliser, James
Philips, Eric
TI Evaluation of a Human Factors Analysis and Classification System Used by
Trained Raters
SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE
LA English
DT Article
DE DoD-HFACS; reliability; human factors; mishap classification
ID HUMAN ERROR; ACCIDENTS; HFACS
AB O'CONNOR P, WALLISER J, PHILIPS E. Evaluation of a Human Factors Analysis and Classification System used by trained raters. Aviat Space Environ Med 2010; 81:957-60.
Background: The U.S. Department of Defense (DoD) has used the DoD Human Factors Analysis and Classification System (DoD-HFACS) to help identify and classify human factors that may have caused or contributed to aircraft mishaps since 2005. Method: In this study 22 military officers used DoD-HFACS to classify information obtained from an interview with an individual who had been involved in an aviation incident in which the potential for serious injury had been high. Results: It was found that although the overall interrater reliability was generally acceptable (as reflected by a mean Fleiss' kappa of 0.75) and there were high levels of agreement regarding the factors that did not contribute to the incident (there was agreement of 50% or greater between raters for 84.4% of unselectecl nanocodes); the level of agreement on the factors that did cause the incident as classified using DoD-HFACS were lower than desirable (agreement of 50% or greater between raters that a particular nanocode was causal was found only for a mean of 22.5% of selected nanocodes). Discussion: The findings from this study are consistent with the small number of other studies reporting an evaluation of the reliability of DoD-HFACS. It is recommended that organizations must evaluate the reliability and validity of mishap coding systems, as applied by the proposed end-users, prior to the widespread adoption of a system. It is only through the accurate identification of mishap causal factors that informed decisions can be made to prevent future mishaps.
C1 [O'Connor, Paul] Natl Univ Ireland, Ctr Innovat & Struct Change, Galway, Ireland.
[Walliser, James; Philips, Eric] USN, Postgrad Sch, Monterey, CA USA.
RP O'Connor, P (reprint author), Natl Univ Ireland, Ctr Innovat & Struct Change, Galway, Ireland.
EM poc73@hotmail.com
RI OConnor, Paul/H-1221-2011
OI OConnor, Paul/0000-0001-9036-098X
NR 16
TC 8
Z9 8
U1 1
U2 7
PU AEROSPACE MEDICAL ASSOC
PI ALEXANDRIA
PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 USA
SN 0095-6562
J9 AVIAT SPACE ENVIR MD
JI Aviat. Space Environ. Med.
PD OCT
PY 2010
VL 81
IS 10
BP 957
EP 960
DI 10.3357/ASEM.2843.2010
PG 4
WC Public, Environmental & Occupational Health; Medicine, General &
Internal; Sport Sciences
SC Public, Environmental & Occupational Health; General & Internal
Medicine; Sport Sciences
GA 654DS
UT WOS:000282149300008
PM 20922888
ER
PT J
AU Miller, DH
Kreis, RG
Huang, WC
Xia, XS
AF Miller, David H.
Kreis, Russell G., Jr.
Huang, Wei-Chuang
Xia, Xiangsheng
TI Application of a lower food web ecosystem productivity model for
investigating dynamics of the invasive species Bythotrephes longimanus
in Lake Michigan
SO BIOLOGICAL INVASIONS
LA English
DT Article
DE Invasive species; Bythotrephes longimanus; Zooplankton; Ecosystem
productivity model
ID GREAT-LAKES; BIODIVERSITY; INVERTEBRATE; COMMUNITIES; BAY
AB A Lake Michigan Ecosystem Model (LM-Eco) that includes a detailed description of trophic levels and their interactions was developed for Lake Michigan. The LM-Eco model constitutes a first step toward a comprehensive Lake Michigan ecosystem productivity model to investigate ecosystem-level responses and effects within the lower food web of the lake. The effect of the invasive species Bythotrephes longimanus on individual zooplankton species was investigated based upon extensive field data collected at multiple locations in Lake Michigan during the 1994-1995 Lake Michigan Mass Balance Study. Field data collected at 15 sampling stations within Lake Michigan over a series of 8 sampling cruises throughout a 2 year period demonstrated that over 65% of zooplankton species exhibited a decline with the occurrence of Bythotrephes in the sample. The LM-Eco model was successfully applied to simulate the trends of Bythotrephes and zooplankton abundance as observed in the collected field data. Model simulations allowed for examination of interactions between the invader Bythotrephes and native zooplankton groups on a 5 km by 5 km resolution throughout Lake Michigan. Analysis was completed as a time series specific to individual field sampling locations within the lake, and also on a lake-wide scale.
C1 [Miller, David H.; Kreis, Russell G., Jr.] US EPA, Mid Continent Ecol Div, ORD, NHEERL,Res Stn, Grosse Ile, MI 48138 USA.
[Huang, Wei-Chuang] USN, Res Lab, Geothermal Program Off, China Lake, CA 93555 USA.
[Xia, Xiangsheng] CSC Corp, Grosse Ile, MI 48138 USA.
RP Miller, DH (reprint author), US EPA, Mid Continent Ecol Div, ORD, NHEERL,Res Stn, 9311 Groh, Grosse Ile, MI 48138 USA.
EM miller.davidh@epa.gov
FU Invasive Species Initiative in the Office of Research and Development
(ORD) of the USEPA
FX This study was conducted in support of the Invasive Species Initiative
in the Office of Research and Development (ORD) of the USEPA. We thank
Peder Yurista and Henry Vanderploeg for providing a valuable review of
this manuscript. The authors also wish to acknowledge the Great Lakes
National Program Office for their efforts in the Lake Michigan Mass
Balance Study, as well as the many cooperators during the study. In
addition, the authors wish to acknowledge NOAA, GLERL, and LimnoTech for
their cooperation and collaboration. The views expressed in this article
are those of the authors and do not necessarily reflect the views or
policies of the U. S. Environmental Protection Agency. Mention of trade
names or commercial products does not constitute endorsement or
recommendation for use.
NR 41
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Z9 4
U1 2
U2 15
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1387-3547
J9 BIOL INVASIONS
JI Biol. Invasions
PD OCT
PY 2010
VL 12
IS 10
BP 3513
EP 3524
DI 10.1007/s10530-010-9748-1
PG 12
WC Biodiversity Conservation; Ecology
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 652CA
UT WOS:000281977200013
ER
PT J
AU Auge, BK
AF Auge, Brian K.
TI Questioning the wisdom of tubeless percutaneous nephrolithotomy (PCNL):
a prospective randomized controlled study of early tube removal vs
tubeless PCNL - Editorial Comment
SO BJU INTERNATIONAL
LA English
DT Editorial Material
C1 USN, Dept Urol, Med Ctr, San Diego, CA 92152 USA.
RP Auge, BK (reprint author), USN, Dept Urol, Med Ctr, San Diego, CA 92152 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1464-4096
J9 BJU INT
JI BJU Int.
PD OCT
PY 2010
VL 106
IS 7
BP 1048
EP 1049
PG 2
WC Urology & Nephrology
SC Urology & Nephrology
GA 650LO
UT WOS:000281851200019
ER
PT J
AU Baraket, M
Walton, SG
Wei, Z
Lock, EH
Robinson, JT
Sheehan, P
AF Baraket, M.
Walton, S. G.
Wei, Z.
Lock, E. H.
Robinson, J. T.
Sheehan, P.
TI Reduction of graphene oxide by electron beam generated plasmas produced
in methane/argon mixtures
SO CARBON
LA English
DT Article
ID GRAPHITE OXIDE; NANOSHEETS; CARBON; TRANSPARENT; SHEETS; FILMS
AB Graphene oxide (GO) was controllably reduced using electron beam generated plasmas produced in methane/argon mixtures. Operating parameters including, total pressure, duty factor (the ratio of the pulse duration to the pulse period), treatment time, and methane flow rate were varied to determine their impact on the reduction process. The resulting surface chemistry, topography and crystallinity of the reduced graphene oxide (r-GO) was determined with X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectroscopy. Oxygen concentration could be tuned to values between 43 at.% and 5 at.%, and under certain operating conditions the sp(2) cluster size grows. System diagnostics identified the critical operating parameters for the reduction of oxygen in GO. Published by Elsevier Ltd.
C1 [Baraket, M.; Walton, S. G.; Lock, E. H.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Robinson, J. T.] USN, Res Lab, Div Elect, Washington, DC 20375 USA.
[Wei, Z.; Sheehan, P.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Baraket, M (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM mira.baraket.ctr@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU Office of Naval Research; National Research Council
FX This research was supported by the Office of Naval Research. M.B.,
E.H.L. and Z.W. appreciates the support of the National Research
Council. Dr. J. Butler from NRL is gratefully acknowledged for the use
of Raman Spectrometer.
NR 34
TC 49
Z9 50
U1 3
U2 65
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 OCT
PY 2010
VL 48
IS 12
BP 3382
EP 3390
DI 10.1016/j.carbon.2010.05.031
PG 9
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 639BN
UT WOS:000280945900011
ER
PT J
AU Bentrem, FW
AF Bentrem, Frank W.
TI A Q-Ising model application for linear-time image segmentation
SO CENTRAL EUROPEAN JOURNAL OF PHYSICS
LA English
DT Article
DE image segmentation; Potts model
ID STATISTICS
AB A computational method is presented which efficiently segments digital grayscale images by directly applying the Q-state Ising (or Potts) model. Since the Potts model was first proposed in 1952, physicists have studied lattice models to gain deep insights into magnetism and other disordered systems. For some time, researchers have realized that digital images may be modeled in much the same way as these physical systems (i.e., as a square lattice of numerical values). A major drawback in using Potts model methods for image segmentation is that, with conventional methods, it processes in exponential time. Advances have been made via certain approximations to reduce the segmentation process to power-law time. However, in many applications (such as for sonar imagery), real-time processing requires much greater efficiency. This article contains a description of an energy minimization technique that applies four Potts (Q-Ising) models directly to the image and processes in linear time. The result is analogous to partitioning the system into regions of four classes of magnetism. This direct Potts segmentation technique is demonstrated on photographic, medical, and acoustic images.
C1 [Bentrem, Frank W.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Bentrem, Frank W.] Tulane Univ, Dept Phys & Engn Phys, New Orleans, LA 70118 USA.
RP Bentrem, FW (reprint author), USN, Res Lab, Marine Geosci Div, Stennis Space Ctr, MS 39529 USA.
EM frank.bentrem@nrlssc.navy.mil
RI Bentrem, Frank/D-5624-2009
OI Bentrem, Frank/0000-0001-5892-4650
FU Naval Research Laboratory
FX This work was supported by the Naval Research Laboratory's Advanced
Graduate Research Program. The author thanks the Tulane Center for
Polymer reaction Monitoring and Characterization (PolyRMC) for resources
provided. A special thanks goes to Dr. Luca Celardo for helpful
discussions. The views expressed in this article are those of the author
and do not represent opinion or police of the US Navy or Department of
Defence.
NR 27
TC 6
Z9 6
U1 0
U2 2
PU VERSITA
PI WARSAW
PA SOLIPSKA 14A-1, 02-482 WARSAW, POLAND
SN 1895-1082
J9 CENT EUR J PHYS
JI Cent. Eur. J. Phys.
PD OCT
PY 2010
VL 8
IS 5
BP 689
EP 698
DI 10.2478/s11534-009-0165-y
PG 10
WC Physics, Multidisciplinary
SC Physics
GA 631VA
UT WOS:000280377000001
ER
PT J
AU Pascoe, GA
Kroeger, K
Leisle, D
Feldpausch, RJ
AF Pascoe, Gary A.
Kroeger, Keith
Leisle, Dwight
Feldpausch, Robert J.
TI Munition constituents: Preliminary sediment screening criteria for the
protection of marine benthic invertebrates
SO CHEMOSPHERE
LA English
DT Article
DE Munition constituents; Sediment screening; Sediment quality benchmarks;
Equilibrium partitioning; TNT
ID CATFISH ICTALURUS-PUNCTATUS; SOLID-PHASE MICROEXTRACTION; PICRIC ACID;
TRANSFORMATION PRODUCTS; DEGRADATION-PRODUCTS; TRINITROTOLUENE TNT;
REDUCED METABOLITES; ORDNANCE COMPOUNDS; AQUATIC ORGANISMS;
HYALELLA-AZTECA
AB Sediment screening criteria for many munition constituents (MC) are not available in sources typically used in regulatory-driven ecological risk assessments for contaminated sediment sites. Preliminary sediment quality benchmarks (SQBs) for MC were developed for screening potential risks to marine benthic invertebrates at a munitions contaminated sediment site in Puget Sound, WA, USA. SQBs were developed for 2,4,6-trinitrotoluene (TNT) and 13 breakdown products; six other explosive nitroaromatic compounds and nitramines (e.g., RDX, HMX); and five propellants, plasticizers, and stabilizers. The SQBs were developed using freshwater and limited marine aquatic toxicity values (and hence are considered preliminary) and equilibrium partitioning theory to relate water concentrations of the compounds to sediment concentrations. The SQBs are derived from the lowest available aquatic toxicity values for aquatic invertebrates from published reviews, original studies, and database sources; ranges of log K-ow and K-oc values from published reviews and database sources, and some K-oc values calculated from log K-ow. SQBs are presented for 25 MC as organic carbon-normalized values and as ranges of dry weight values for various levels of organic carbon content of sediments. Comparison of the preliminary SQBs with method detection limits and sample detection limits achieved at the contaminated sediment site demonstrates their utility in risk screening of benthic invertebrates. (c) 2010 Elsevier Ltd. All rights reserved.
C1 [Pascoe, Gary A.] Pascoe Environm Consulting, Port Townsend, WA 98368 USA.
[Kroeger, Keith] Tetra Tech EC Inc, Portland, OR 97201 USA.
[Leisle, Dwight] USN, Facil Engn Command NW, Silverdale, WA 98315 USA.
[Feldpausch, Robert J.] Tetra Tech EC Inc, Bothell, WA 98011 USA.
RP Pascoe, GA (reprint author), Pascoe Environm Consulting, 210 Taylor St,Room 15, Port Townsend, WA 98368 USA.
EM gpascoe@pascoe-env.com
FU Tetra Tech EC, Inc.
FX This study was originally performed for the US Navy, Engineering Field
Activity, Poulsbo, WA, USA, under a contract held by Tetra Tech EC, Inc.
Preliminary results were presented at the December 2009 SERDP-ESTCP
symposium, Washington, DC, USA.
NR 97
TC 4
Z9 4
U1 0
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-6535
EI 1879-1298
J9 CHEMOSPHERE
JI Chemosphere
PD OCT
PY 2010
VL 81
IS 6
BP 807
EP 816
DI 10.1016/j.chemosphere.2010.06.077
PG 10
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 673YQ
UT WOS:000283700500018
PM 20674958
ER
PT J
AU Amundson, DE
Djurkovic, S
Matwiyoff, GN
AF Amundson, Dennis E.
Djurkovic, Svetolik
Matwiyoff, Gregory N.
TI The Obesity Paradox
SO CRITICAL CARE CLINICS
LA English
DT Article
DE Obesity; Obesity paradox; Consequences of obesity
ID BODY-MASS INDEX; PERCUTANEOUS CORONARY INTERVENTION; PERITONEAL-DIALYSIS
PATIENTS; RENAL-DISEASE PATIENTS; SHORT-TERM SURVIVAL;
HEMODIALYSIS-PATIENTS; MYOCARDIAL-INFARCTION; HEART-FAILURE;
CLINICAL-OUTCOMES; ARTERY-DISEASE
AB The term obesity paradox' refers to the observation that although obesity is a major risk factor in the development of cardiovascular and peripheral vascular disease when acute cardiovascular decompensation occurs for example in myocardial infarction or congestive heart failure obese patients may have a survival benefit In addition it has been suggested that obese patients tend to fare better after certain surgical procedures such as coronary artery bypass surgery Moreover it appears that obese men with chronic hypertensive heart disease live longer than men of normal weight Mounting evidence shows that obesity alone may confer a survival benefit independent of age medical care or therapy Perhaps the definition of obesity needs to be revisited and it is also possible that all fat is not equal
C1 [Amundson, Dennis E.] USN, Dept Pulm Crit Care Med, San Diego Med Ctr, San Diego, CA 92152 USA.
[Djurkovic, Svetolik] Inova Hlth Syst Crit Care Med, Dept Med, Falls Church, VA 22042 USA.
RP Amundson, DE (reprint author), USN, Dept Pulm Crit Care Med, San Diego Med Ctr, San Diego, CA 92152 USA.
NR 64
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U1 1
U2 4
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0749-0704
J9 CRIT CARE CLIN
JI Crit. Care Clin.
PD OCT
PY 2010
VL 26
IS 4
BP 583
EP +
DI 10.1016/j.ccc.2010.04.004
PG 15
WC Critical Care Medicine
SC General & Internal Medicine
GA 681DL
UT WOS:000284290800002
PM 20970043
ER
PT J
AU Kirman, CR
Albertini, RJ
Sweeney, LM
Gargas, ML
AF Kirman, Christopher R.
Albertini, Richard J.
Sweeney, Lisa M.
Gargas, Michael L.
TI 1,3-Butadiene: I. Review of metabolism and the implications to human
health risk assessment
SO CRITICAL REVIEWS IN TOXICOLOGY
LA English
DT Review
DE 1,3-Butadiene; 1,2-dihydroxy-3; 4-epoxybutane; 1; 3; 4-diepoxybutane; 1;
2-epoxy-3-butene; metabolism; nonlinearity; species differences
ID SPRAGUE-DAWLEY RATS; SYNTHETIC RUBBER INDUSTRY; HUMAN LIVER-MICROSOMES;
LEVEL INHALATION EXPOSURE; THROUGH PERFUSED LIVERS; HUMAN CYTOCHROME
P450S; DNA CROSS-LINKS; SPECIES-DIFFERENCES; BUTADIENE EPOXIDES;
HEMOGLOBIN ADDUCTS
AB 1,3-Butadiene (BD) is a multisite carcinogen in laboratory rodents following lifetime exposure, with mice demonstrating greater sensitivity than rats. In epidemiology studies of men in the styrene-butadiene rubber industry, leukemia mortality is associated with butadiene exposure, and this association is most pronounced for high-intensity BD exposures. Metabolism is an important determinant of BD carcinogenicity. BD is metabolized to several electrophilic intermediates, including epoxybutene (EB), diepoxybutane (DEB), and epoxybutane diol (EBD), which differ considerably in their genotoxic potency (DEB >> EB > EBD). Important species differences exist with respect to the formation of reactive metabolites and their subsequent detoxification, which underlie observed species differences in sensitivity to the carcinogenic effects of BD. The modes of action for human leukemia and for the observed solid tumors in rodents are both likely related to the genotoxic potencies for one or more of these metabolites. A number of factors related to metabolism can also contribute to nonlinearity in the dose-response relationship, including enzyme induction and inhibition, depletion of tissue glutathione, and saturation of oxidative metabolism. A quantitative risk assessment of BD needs to reflect these species differences and sources of nonlinearity if it is to reflect the current understanding of the disposition of BD.
C1 [Kirman, Christopher R.] Summit Toxicol, Orange, VA USA.
[Kirman, Christopher R.] Sapphire Grp, Orange, OH USA.
[Albertini, Richard J.] Univ Vermont, Coll Med, Dept Pathol, Burlington, VT 05405 USA.
[Sweeney, Lisa M.] Toxicol Excellence Risk Assessment, Cincinnati, OH USA.
[Gargas, Michael L.] USN, Hlth Res Ctr, Wright Patterson AFB, OH USA.
[Sweeney, Lisa M.; Gargas, Michael L.] Sapphire Grp, Dayton, OH USA.
RP Kirman, CR (reprint author), Summit Toxicol, 29449 Pike Dr, Orange Village, OH 44022 USA.
EM ckirman@summittoxicology.com
RI Sweeney, Lisa/K-5114-2012
OI Sweeney, Lisa/0000-0002-4672-7358
FU Sapphire Group, Inc.; Olefins Panel of the American Chemistry Council
FX The authors would like to acknowledge the Ms. Leigh Carson for her
valuable assistance in preparing the manuscript and the support of Dr.
Robert Tardiff of The Sapphire Group, Inc.; This work was funded by the
Olefins Panel of the American Chemistry Council. The authors'
affiliations are as shown on the first page. The authors have sole
responsibility for the writing and content of the paper. Dr. Albertini,
Dr. Gargas, Dr. Sweeney, and Mr. Kirman are consultants to the Olefins
Panel.
NR 67
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U1 0
U2 10
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 1040-8444
J9 CRIT REV TOXICOL
JI Crit. Rev. Toxicol.
PD OCT
PY 2010
VL 40
SU 1
BP 1
EP 11
DI 10.3109/10408444.2010.507181
PG 11
WC Toxicology
SC Toxicology
GA 661UX
UT WOS:000282755000001
PM 20868266
ER
PT J
AU Albertini, RJ
Carson, ML
Kirman, CR
Gargas, ML
AF Albertini, Richard J.
Carson, M. Leigh
Kirman, Christopher R.
Gargas, Michael L.
TI 1,3-Butadiene: II. Genotoxicity profile
SO CRITICAL REVIEWS IN TOXICOLOGY
LA English
DT Review
DE 1,3-Butadiene; 1,2-dihydroxy-3; 4-epoxybutane; 1,2,3,4-diepoxybutane;
1,2-epoxy-3-butene; genotoxicity; mutagenicity
ID SISTER-CHROMATID EXCHANGE; CULTURED HUMAN-LYMPHOCYTES;
GLUTATHIONE-S-TRANSFERASE; BIFUNCTIONAL ALKYLATING-AGENTS; DNA
CROSS-LINKS; BUTADIENE-POLYMER WORKERS; SYNTHETIC RUBBER INDUSTRY; HPRT
MUTANT LYMPHOCYTES; EPOXIDE HYDROLASE GENE; LACI TRANSGENIC MICE
AB 1,3-Butadiene's (BD's) major electrophilic metabolites 1,2-epoxy-3-butene (EB), 1,2-dihydroxy-3,4-epoxybutane (EBD), and 1,2,3,4-diepoxybutane (DEB) are responsible for both its mutagenicity and carcinogenicity. EB, EBD, and DEB are DNA reactive, forming a variety of adducts. All three metabolites are genotoxic in vitro and in vivo, with relative mutagenic potencies of DEB >> EB > EBD. DEB also effectively produces gene deletions and chromosome aberrations. BD's greater mutagenicity and carcinogenicity in mice over rats as well as its failure to induce chromosome-level mutations in vivo in rats appear to be due to greater production of DEB in mice. Concentrations of EB and DEB in vivo in humans are even lower than in rats. Although most studies of BD-exposed humans have failed to find increases in gene mutations, one group has reported positive findings. Reasons for these discordant results are examined. BD-related chromosome aberrations have never been demonstrated in humans except for the possible production of micronuclei in lymphocytes of workers exposed to extremely high levels of BD in the workplace. The relative potencies of the BD metabolites, their relative abundance in the different species, and the kinds of mutations they can induce are major considerations in BD's overall genotoxicity profile.
C1 [Albertini, Richard J.] Univ Vermont, Coll Med, Dept Pathol, Burlington, VT 05405 USA.
[Carson, M. Leigh] Sapphire Grp, Bethesda, MD USA.
[Kirman, Christopher R.] Sapphire Grp, Orange, OH USA.
[Kirman, Christopher R.] Summit Toxicol, Orange, OH USA.
[Gargas, Michael L.] USN, Hlth Res Ctr, Wright Patterson AFB, OH USA.
[Gargas, Michael L.] Sapphire Grp, Dayton, OH USA.
RP Kirman, CR (reprint author), Summit Toxicol, 29449 Pike Dr, Orange Village, OH 44022 USA.
EM ckirman@summittoxicology.com
FU Olefins Panel of the American Chemistry Council; Sapphire Group
FX This work was funded by the Olefins Panel of the American Chemistry
Council. The authors' affiliations are as shown on the first page. The
authors have sole responsibility for the writing and content of the
paper. Dr. Albertini, Dr. Gargas, Ms. Carson, and Mr. Kirman are
consultants to the Olefins Panel.; The authors also would like to
acknowledge the support of Dr. Robert Tardiff of The Sapphire Group.
NR 355
TC 16
Z9 17
U1 0
U2 9
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 1040-8444
J9 CRIT REV TOXICOL
JI Crit. Rev. Toxicol.
PD OCT
PY 2010
VL 40
SU 1
BP 12
EP 73
DI 10.3109/10408444.2010.507182
PG 62
WC Toxicology
SC Toxicology
GA 661UX
UT WOS:000282755000002
PM 20868267
ER
PT J
AU Kirman, CR
Albertini, RA
Gargas, ML
AF Kirman, Christopher R.
Albertini, Richard A.
Gargas, Michael L.
TI 1,3-Butadiene: III. Assessing carcinogenic modes of action
SO CRITICAL REVIEWS IN TOXICOLOGY
LA English
DT Review
DE 1,3-Butadiene; carcinogenicity; 1,2-epoxy-3-butene;
1,2,3,4-diepoxybutane; 1,2-dihydroxy-3; 4-epoxybutane; mode of action
ID SYNTHETIC RUBBER INDUSTRY; CANCER-RISK ASSESSMENT; BUTADIENE-POLYMER
WORKERS; CHRONIC MYELOID-LEUKEMIA; SPRAGUE-DAWLEY RATS; ABL TYROSINE
KINASE; MALE B6C3F1 MICE; CHROMOSOMAL-ABERRATIONS; STYRENE OXIDE; HPRT
LOCUS
AB 1,3-Butadiene (BD) is a multisite carcinogen in laboratory rodents following lifetime exposure, with greater potency in the mouse than the rat, and is associated with an increase in leukemia mortality in highly exposed workers. Species differences in the formation of reactive metabolites underlie observed species differences in sensitivity to the carcinogenic effects of BD. The modes of action (MOAs) for human leukemia and rodent tumors are both likely related to mutagenic potencies of one or more of these metabolites. However, differences in the nature of genotoxic lesions associated with human leukemia and rodent tumors, along with their implications for risk assessment, require that they be discussed separately. The MOAs for BD are assessed in this review using the modified Hill criteria and human relevance framework. Key events in MOAs for human and rodent cancers are identified, along with important species differences and sources of nonlinearity for each event that can affect extrapolations made from high-to low-dose exposures. Because occupational exposures to BD have also included co-exposures to styrene and dimethyldithiocarbamide (DMDTC), potential interactions with BD carcinogenicity are also discussed. The MOAs for BD carcinogenesis will be used to guide key decisions made in the quantitative cancer dose-response assessment.
C1 [Kirman, Christopher R.] Summit Toxicol, Orange, OH USA.
[Kirman, Christopher R.] Sapphire Grp, Orange, OH USA.
[Albertini, Richard A.] Univ Vermont, Coll Med, Dept Pathol, Burlington, VT 05405 USA.
[Gargas, Michael L.] USN, Hlth Res Ctr, Wright Patterson AFB, OH USA.
[Gargas, Michael L.] Sapphire Grp, Dayton, OH USA.
RP Kirman, CR (reprint author), Summit Toxicol, 29449 Pike Dr, Orange Village, OH 44022 USA.
EM ckirman@summittoxicology.com
FU Olefins Panel of the American Chemistry Council; Sapphire Group, Inc.
FX This work was funded by the Olefins Panel of the American Chemistry
Council. The authors' affiliations are as shown on the first page. The
authors have sole responsibility for the writing and content of the
paper. Dr. Albertini, Dr. Gargas, Dr. Sweeney, and Mr. Kirman are
consultants to the Olefins Panel.; The authors would like to acknowledge
Ms. Leigh Carson for her valuable assistance in preparing the manuscript
and the support of Dr. Robert Tardiff of The Sapphire Group, Inc.
NR 120
TC 13
Z9 14
U1 1
U2 6
PU INFORMA HEALTHCARE
PI LONDON
PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND
SN 1040-8444
J9 CRIT REV TOXICOL
JI Crit. Rev. Toxicol.
PD OCT
PY 2010
VL 40
SU 1
BP 74
EP 92
DI 10.3109/10408444.2010.507183
PG 19
WC Toxicology
SC Toxicology
GA 661UX
UT WOS:000282755000003
PM 20868268
ER
PT J
AU Stewart, KMA
AF Stewart, Kristen M. A.
TI Clinical Care of Vulvar Pruritus, with Emphasis on One Common Cause,
Lichen Simplex Chronicus
SO DERMATOLOGIC CLINICS
LA English
DT Article
DE Vulvar; Pruritus; Differential diagnosis; Lichen simplex chronicus;
Treatment
ID CONTACT-DERMATITIS; ATOPIC-DERMATITIS; GENITAL PRURITUS; OPEN-LABEL;
DERMATOSES; PIMECROLIMUS; CARCINOMA; EFFICACY
AB Vulvar pruritus is a common and distressing condition for patients, and its presentation is often delayed and complicated by home remedies. The true prevalence cannot be accurately estimated. Vulvar pruritus is a symptom, and an underlying cause must be sought and not assumed. This is best accomplished by obtaining a careful history of vulvar care regimens and treatments, performing a detailed physical examination, and considering a broad differential diagnosis. This article provides a practical and clinical approach to the evaluation of vulvar pruritus and then focuses specifically on one common cause, lichen simplex chronicus.
C1 USN, Hlth Clin New England, Dept Dermatol, Newport, RI 02841 USA.
RP Stewart, KMA (reprint author), USN, Hlth Clin New England, Dept Dermatol, 43 Smith Rd, Newport, RI 02841 USA.
EM kristen.stewart@med.navy.mil
NR 35
TC 6
Z9 7
U1 0
U2 3
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0733-8635
J9 DERMATOL CLIN
JI Dermatol. Clin.
PD OCT
PY 2010
VL 28
IS 4
BP 669
EP +
DI 10.1016/j.det.2010.08.004
PG 13
WC Dermatology
SC Dermatology
GA 676XT
UT WOS:000283953100004
PM 20883911
ER
PT J
AU Gaillou, E
Post, JE
Bassim, ND
Zaitsev, AM
Rose, T
Fries, MD
Stroud, RM
Steele, A
Butler, JE
AF Gaillou, E.
Post, J. E.
Bassim, N. D.
Zaitsev, A. M.
Rose, T.
Fries, M. D.
Stroud, R. M.
Steele, A.
Butler, J. E.
TI Spectroscopic and microscopic characterizations of color lamellae in
natural pink diamonds
SO DIAMOND AND RELATED MATERIALS
LA English
DT Article
DE Natural pink diamond; Graining; Deformation twin; Plastic deformation;
405.5 nm center
ID PLASTIC-DEFORMATION; RAMAN-SPECTROSCOPY; OPTICAL-CENTERS; CVD DIAMOND;
CRYSTALS; GROWTH; PHOTOLUMINESCENCE; TEMPERATURE; PRESSURE; STRESS
AB Nineteen natural, untreated, type laAB pink diamonds from various localities were studied. They display microscopic (similar to 1 mu m thick) pink lamellae along {111} in an otherwise colorless diamond. This coloration concentrated in lamellae is commonly referred to as "graining". The diamonds were examined using high spatial resolution spectroscopic methods and transmission electron microscopy. TEM revealed that a pink lamella consists of a cluster of paired microtwins created under stress by plastic deformation. Raman line shift and broadening associated with the twinned pink lamellae indicate the presence of residual stress. Ultraviolet-visible absorption spectra from each of the samples showed a broad absorption band centered at similar to 550 nm, the source of the pink color. Cathodoluminescence spectra of the pink lamellae are different from those of the bulk, colorless diamond matrix. Within the lamellae only, the H3 center is observed along with a less intense N3 center. In some samples, instead of the N3 center a new center with a zero phonon line at 405.5 nm is observed. This previously unreported 405.5 nm center has phonon sidebands qualitatively identical to the N3 center, and may be an N3 center modified by a specific environment. These results suggest that lattice vacancies were created during twinning resulting from plastic deformation, and that impurity centers (such as those containing nitrogen) trap some of the diffusing vacancies. Since the pink lamellae are still under residual stress, new or modified defect centers are created, e.g. H3 and N3. The color center(s) responsible for the pink color (550 nm absorption) was not identified, but likely is only present in diamonds that experienced plastic deformation. Reported annealing of plastically deformed brown diamonds, which results in a residual pink color, suggests that the pink color is stable under these high pressure, high temperature conditions. The reported observations that annealing plastically deformed brown diamonds results in a residual pink color and that the pink color does not anneal out under similar high pressure, high temperature conditions, suggests that the deformation inducing pink color occurs inside the Earth's mantle, whereas brown coloration might be induced during a more recent event such as the ascent of the diamond to the surface in a kimberlitic/lamproitic eruption. Published by Elsevier BM.
C1 [Gaillou, E.; Post, J. E.; Rose, T.] Smithsonian Inst, Dept Mineral Sci, Washington, DC 20560 USA.
[Gaillou, E.; Bassim, N. D.; Stroud, R. M.; Butler, J. E.] USN, Res Lab, Washington, DC 20375 USA.
[Zaitsev, A. M.] CUNY Coll Staten Isl, Staten Isl, NY 10314 USA.
[Fries, M. D.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Steele, A.] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA.
RP Gaillou, E (reprint author), Smithsonian Inst, Natl Museum Nat Hist, MRC 0119,Natl Hist Bldg W,Loading Dock 10th & Con, Washington, DC 20560 USA.
EM gailloue@si.edu
RI Butler, James/B-7965-2008; Gaillou, Eloise/D-1753-2009; Stroud,
Rhonda/C-5503-2008
OI Butler, James/0000-0002-4794-7176; Gaillou, Eloise/0000-0002-7949-268X;
Stroud, Rhonda/0000-0001-5242-8015
FU Apollo Diamond; JCK Industry Fund; Coralyn Whitney Endowment Fund
(Smithsonian Institution)
FX The authors wish to thank Alan Collins for constructive discussion of
the some spectroscopic results, as well as Fischione and Yoosuff Piccard
for assistance with the Nanomilling of the FIB sections. We gratefully
acknowledge grants from Apollo Diamond, the JCK Industry Fund, and the
Coralyn Whitney Endowment Fund (Smithsonian Institution). We also thank
Dr. Benjamin Rondeau and the anonymous person who reviewed this paper,
and who improved the quality of this manuscript.
NR 60
TC 25
Z9 25
U1 2
U2 20
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0925-9635
J9 DIAM RELAT MATER
JI Diam. Relat. Mat.
PD OCT
PY 2010
VL 19
IS 10
BP 1207
EP 1220
DI 10.1016/j.diamond.2010.06.015
PG 14
WC Materials Science, Multidisciplinary
SC Materials Science
GA 654XB
UT WOS:000282203300014
ER
PT J
AU Wemhoff, AP
Frank, MV
AF Wemhoff, A. P.
Frank, M. V.
TI Predictions of energy savings in HVAC systems by lumped models
SO ENERGY AND BUILDINGS
LA English
DT Article
DE Lumped analysis; Energy management; HVAC system; Psychrometrics
ID OPTIMIZATION; MANAGEMENT
AB An approach to optimizing the energy efficiency of a Heating, Ventilating, and Air Conditioning (HVAC) system is presented that utilizes computational predictions of the effect of heat load distribution on moist air temperature, density, and humidity variation. Lumped-HVAC (L-HVAC) is a new lumped parameter code that couples fluid transport, energy transport, thermodynamics, and psychrometrics in an HVAC system. This code contains a nonlinear implicit solution algorithm for steady-state and transient calculations for flow resistance, water mass balance, and energy conservation. L-HVAC has been validated using a simplified analytical model, the commercial lumped parameter code SINDA/FLUINT, and experimental measurements. Steady-state calculations for a single-room system suggest an order of magnitude greater energy savings using a variable chiller power control approach compared to control damper and variable-drive fan approaches. L-HVAC was also applied to predict that the fraction of latent to total heat load influences the steady-state system temperature by up to 0.4 degrees C for the example system in this study. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Wemhoff, A. P.] Villanova Univ, Dept Mech Engn, Villanova, PA 19085 USA.
[Frank, M. V.] USN, Syst Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
RP Wemhoff, AP (reprint author), Villanova Univ, Dept Mech Engn, 800 Lancaster Ave, Villanova, PA 19085 USA.
EM aaron.wemhoff@villanova.edu
FU ASEE-ONR
FX Research funding by the ASEE-ONR Summer Faculty Fellowship Program
sponsored by Mark Spector, Ph.D.; conversations with Amip Shah of
Hewlett-Packard; and experimental measurements by Eric Wroble are
greatly appreciated.
NR 20
TC 17
Z9 17
U1 1
U2 7
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0378-7788
J9 ENERG BUILDINGS
JI Energy Build.
PD OCT
PY 2010
VL 42
IS 10
BP 1807
EP 1814
DI 10.1016/j.enbuild.2010.05.017
PG 8
WC Construction & Building Technology; Energy & Fuels; Engineering, Civil
SC Construction & Building Technology; Energy & Fuels; Engineering
GA 644YB
UT WOS:000281417000028
ER
PT J
AU Cramer, JA
Morris, RE
Rose-Pehrsson, SL
AF Cramer, Jeffrey A.
Morris, Robert E.
Rose-Pehrsson, Susan L.
TI Use of Genetic Algorithms To Improve Partial Least Squares Fuel Property
and Synthetic Fuel Modeling from Near-Infrared Spectra
SO ENERGY & FUELS
LA English
DT Article
ID ARTIFICIAL NEURAL-NETWORKS; WAVELENGTH SELECTION; MULTIVARIATE
CALIBRATION; SPECTROPHOTOMETRIC DETERMINATION; SPECTROSCOPIC DATA; PLS;
REGRESSION; OPTIMIZATION; PREDICTIONS; COMBINATION
AB Partial least-squares (PLS) regression models can be constructed from near-infrared (NI R) spectroscopic data to predict critical specification properties of jet and diesel fuels for quality surveillance, This same approach has also been used to identify Fischer-Tropsch (FT) synthetic fuels and predict their quantities in blends with jet or diesel petroleum-derived fuels at concentrations as low as 15% with a sequential modeling approach. The present work expands on these previous results using genetic algorithms to select the maximally useful subset of all available training data for both fuel property modeling and FT fuel identification purposes. Prediction improvements primarily stem from the ability of the automated genetic algorithm and F-test algorithm to select larger numbers of latent variables without overfitting, which is not possible by simply modifying the F-test threshold. These improved data subsets provide significant improvements in the precision or PLS property modeling, as well as the lower detection limit of 10% for FT fuels in blends with conventional petroleum-derived fuels. This provides the means to extend the development of predictive PLS models to detect, quantify, and predict many specification properties of FT fuels, neat and in blends with petroleum fuels. Additionally, the use of genetic algorithms now makes the detection and discrimination of FT fuels in blends with multiple FT fuels feasible with the same 10% limit of detection.
C1 [Cramer, Jeffrey A.; Morris, Robert E.; Rose-Pehrsson, Susan L.] USN, Res Lab, Washington, DC 20375 USA.
RP Cramer, JA (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jeffrey.cramer@nrl.navy.mil
FU National Research Council (NRC); Office of Naval Research (ONR)
FX The authors thank the National Research Council (NRC) and the Office of
Naval Research (ONR) for supporting this work.
NR 33
TC 4
Z9 4
U1 0
U2 7
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 OCT
PY 2010
VL 24
BP 5560
EP 5572
DI 10.1021/ef100840q
PG 13
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 666JO
UT WOS:000283111200031
ER
PT J
AU Stotland, A
Pecora, LM
Cohen, D
AF Stotland, A.
Pecora, L. M.
Cohen, D.
TI Quantum response of weakly chaotic systems
SO EPL
LA English
DT Article
ID ONE-BODY DISSIPATION; NONPERTURBATIVE RESPONSE; SEMILINEAR RESPONSE;
SPECTRAL STATISTICS; BILLIARDS; LOCALIZATION; MODEL
AB Chaotic systems, that have a small Lyapunov exponent, do not obey the common random matrix theory predictions within a wide "weak quantum chaos" regime. This leads to a novel prediction for the rate of heating for cold atoms in optical billiards with vibrating walls. The Hamiltonian matrix of the driven system does not look like one from a Gaussian ensemble, but rather it is very sparse. This sparsity can be characterized by parameters s and g(s) that reflect the percentage of large elements, and their connectivity, respectively. For g(s) we use a resistor network calculation that has direct relation to the semilinear response characteristics of the system. Copyright (C) EPLA, 2010
C1 [Stotland, A.; Cohen, D.] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel.
[Pecora, L. M.] USN, Res Lab, Washington, DC 20375 USA.
RP Stotland, A (reprint author), Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel.
EM dcohen@bgu.ac.il
RI Cohen, Doron/D-4564-2009
OI Cohen, Doron/0000-0002-3835-3544
FU US-Israel Binational Science Foundation (BSF)
FX We thank N. DAVIDSON (Weizmann) for a crucial discussion regarding the
experimental details. This research has been supported by the US-Israel
Binational Science Foundation (BSF).
NR 31
TC 4
Z9 4
U1 0
U2 1
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
J9 EPL-EUROPHYS LETT
JI EPL
PD OCT
PY 2010
VL 92
IS 2
AR 20009
DI 10.1209/0295-5075/92/20009
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 683IX
UT WOS:000284470600009
ER
PT J
AU Babich, YV
Feigelson, BN
Babich, IY
Chepurov, AI
AF Babich, Yu. V.
Feigelson, B. N.
Babich, I. Yu.
Chepurov, A. I.
TI Specifics of the Distribution of Nitrogen Defects in Synthetic Diamonds
of Cubic Habit: IR Mapping Data
SO GEOCHEMISTRY INTERNATIONAL
LA English
DT Article
ID INFRARED-ABSORPTION; SINGLE-CRYSTALS; GROWTH-RATE; AGGREGATION;
TRANSFORMATION; DEPENDENCE; CENTERS; NICKEL
C1 [Babich, Yu. V.; Chepurov, A. I.] Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, Novosibirsk 630090, Russia.
[Feigelson, B. N.] USN, Res Lab, Geo Ctr, Washington, DC 20375 USA.
[Babich, I. Yu.] Russian Acad Sci, Siberian Branch, Inst Comp Technol, Novosibirsk 630090, Russia.
RP Babich, YV (reprint author), Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia.
EM BabichYV@uiggm.nsc.ru
RI Babich, Yuri/A-5655-2014; Chepurov, Anatoli/A-6730-2014
NR 28
TC 5
Z9 5
U1 0
U2 3
PU MAIK NAUKA/INTERPERIODICA/SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013-1578 USA
SN 0016-7029
J9 GEOCHEM INT+
JI Geochem. Int.
PD OCT
PY 2010
VL 48
IS 10
BP 1028
EP 1034
DI 10.1134/S0016702910100071
PG 7
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 668FK
UT WOS:000283253800007
ER
PT J
AU Rubincam, DP
Paddack, SJ
AF Rubincam, David Parry
Paddack, Stephen J.
TI Zero secular torque on asteroids from impinging solar photons in the
YORP effect: A simple proof
SO ICARUS
LA English
DT Article
DE Asteroids; Asteroids, Rotation; Asteroids, Dynamics; Rotational
dynamics; Celestial mechanics
ID RADIATION PRESSURE; EVOLUTION
AB YORP torques, where "YORP" stands for "Yarokovsky-O'Keefe-Radzievskii-Paddack," arise mainly from sunlight reflected off a Solar System object and the infrared radiation emitted by it. We show here, through the most elementary demonstration that we can devise, that secular torques from impinging solar photons are generally negligible and thus cause little secular evolution of an asteroid's obliquity or spin rate. Published by Elsevier Inc.
C1 [Rubincam, David Parry] NASA, Goddard Space Flight Ctr, Planetary Geodynam Lab, Greenbelt, MD 20771 USA.
[Paddack, Stephen J.] USN Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
RP Rubincam, DP (reprint author), NASA, Goddard Space Flight Ctr, Planetary Geodynam Lab, Greenbelt, MD 20771 USA.
EM David.P.Rubincam@nasa.gov; Stephen.Paddack@verizon.net
RI Rubincam, David/D-2918-2012
NR 12
TC 6
Z9 6
U1 2
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0019-1035
J9 ICARUS
JI Icarus
PD OCT
PY 2010
VL 209
IS 2
BP 863
EP 865
DI 10.1016/j.icarus.2010.05.015
PG 3
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 654VL
UT WOS:000282199000053
ER
PT J
AU El-Nimri, SF
Jones, WL
Uhlhorn, E
Ruf, C
Johnson, J
Black, P
AF El-Nimri, Salem Fawwaz
Jones, W. Linwood
Uhlhorn, Eric
Ruf, Christopher
Johnson, James
Black, Peter
TI An Improved C-Band Ocean Surface Emissivity Model at Hurricane-Force
Wind Speeds Over a Wide Range of Earth Incidence Angles
SO IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
LA English
DT Article
DE Hurricane Imaging Radiometer (HIRAD); hurricane winds; ocean surface
emissivity; radiometry; Stepped-Frequency Microwave Radiometer (SFMR)
ID TEMPERATURE
AB An improved microwave radiometric ocean surface emissivity model has been developed to support forward radiative transfer modeling of brightness temperature and geophysical retrieval algorithms for the next-generation airborne Hurricane Imaging Radiometer instrument. This physically based C-band emissivity model extends current model capabilities to hurricane-force wind speeds over a wide range of incidence angles. It was primarily developed using brightness temperature observations during hurricanes with coincident high-quality surface-truth wind speeds, which were obtained using the airborne Stepped-Frequency Microwave Radiometer. Also, other ocean emissivity models available through the published literature and the spaceborne WindSat radiometer measurements were used.
C1 [El-Nimri, Salem Fawwaz; Jones, W. Linwood; Johnson, James] Univ Cent Florida, Cent Florida Remote Sensing Lab, Orlando, FL 32816 USA.
[Uhlhorn, Eric] Natl Ocean & Atmospher Adm, Hurricane Res Div, Atlantic Oceanog & Meteorol Lab, Miami, FL 33149 USA.
[Ruf, Christopher] Univ Michigan, Ann Arbor, MI 48109 USA.
[Black, Peter] SAIC Inc, Monterey, CA 93940 USA.
[Black, Peter] USN, Marine Meteorol Div, Res Lab, Monterey, CA 93940 USA.
RP El-Nimri, SF (reprint author), Univ Cent Florida, Cent Florida Remote Sensing Lab, Orlando, FL 32816 USA.
EM selnimri@mail.ucf.edu; ljones@ucf.edu; eric.uhlhorn@noaa.gov;
cruf@umich.edu; jamesj@mail.ucf.edu; peter.black@nrlmry.navy.mil
RI Ruf, Christopher/I-9463-2012; Uhlhorn, Eric/B-1336-2014
OI Uhlhorn, Eric/0000-0002-4759-5342
FU Von Braun Center for Science and Innovation, Inc., Huntsville, AL
[SUB2006-226]; Marshall Space Flight Center, National Aeronautics and
Space Administration; National Oceanic and Atmospheric Administration in
the development of the Hurricane Imaging Radiometer instrument
FX Manuscript received April 15, 2009; revised July 21, 2009 and November
16, 2009. Date of publication April 12, 2010; date of current version
October 13, 2010. This work was supported in part by the Von Braun
Center for Science and Innovation, Inc., Huntsville, AL, under
Subcontract SUB2006-226, by the Marshall Space Flight Center, National
Aeronautics and Space Administration, and by the National Oceanic and
Atmospheric Administration in the development of the Hurricane Imaging
Radiometer instrument.
NR 15
TC 13
Z9 13
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1545-598X
EI 1558-0571
J9 IEEE GEOSCI REMOTE S
JI IEEE Geosci. Remote Sens. Lett.
PD OCT
PY 2010
VL 7
IS 4
BP 641
EP 645
DI 10.1109/LGRS.2010.2043814
PG 5
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 670SD
UT WOS:000283446700005
ER
PT J
AU Goodman, L
Levine, ER
Wang, ZK
AF Goodman, Louis
Levine, Edward R.
Wang, Zhankun
TI Subsurface Observations of Surface Waves From an Autonomous Underwater
Vehicle
SO IEEE JOURNAL OF OCEANIC ENGINEERING
LA English
DT Article
DE Accelerometers; autonomous underwater vehicle (AUV); AUV response;
coherence and phase; spectra; surface wave swell
ID AUV
AB In this study, we will show how ocean surface wave displacement can be estimated from sensors onboard a subsurface moving autonomous underwater vehicle (AUV). The approach is to use a high-resolution vertical accelerometer along with a high-resolution pressure sensor mounted coincidently on an AUV. We apply this approach to data collected in summer 2005, in northeast Monterey Bay, CA, during an engineering experiment as a part of the Layered Organization in the Coastal Ocean (LOCO) program. The AUV used was the School for Marine Science and Technology, University of Massachusetts Dartmouth T-REMUS vehicle. Data were collected while the vehicle traveled at a constant speed 1.2 m/s and a constant depth of 10 m in water of depth 19.5 m. The local wind-generated surface wave field was relatively weak and dominated by surface wave swell of frequencies of 1/12 and 1/6 Hz, respectively. Surface waves of these frequencies in this depth of water have wavelengths of 150 and 55 m, respectively, both values being much larger than the length of the T-REMUS, which is 2 m. This condition, along with the fact that the AUV is moving over an order of magnitude slower than the phase speed associated with these surface waves, allows estimation of the frequency spectrum of surface waves by sensors onboard the AUV as well as interpretation of how the AUV responds to the surface wave field. From our estimation technique, we have confirmed that the two frequencies of 1/12 and 1/6 Hz were the dominant surface wave frequencies present and that the AUV-based estimated spectral values agreed very closely with in situ observations made by a fixed slow rise profiler located 200 m away. Pitch spectra indicated that the AUV responded to the higher frequency swell component of 1/6 Hz by adjusting its depth to try to follow the surface-wave-induced pressure. At the lower frequency, the AUV tended to follow the surface wave coherently.
C1 [Goodman, Louis] Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, Dept Estuarine & Ocean Sci, New Bedford, MA 02744 USA.
[Levine, Edward R.] USN, Autonomous & Def Syst Dept, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Goodman, L (reprint author), Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, Dept Estuarine & Ocean Sci, New Bedford, MA 02744 USA.
EM lgo-odman@umassd.edu; zwang@umassd.edu
RI Wang, Zhankun/F-7745-2012
OI Wang, Zhankun/0000-0002-3727-1379
FU Layered Organization in the Coastal Ocean (LOCO) [ONR322MB]
FX This work was supported by the Layered Organization in the Coastal Ocean
(LOCO) program manager, Dr. J. Ekman, ONR322MB.
NR 17
TC 4
Z9 6
U1 0
U2 13
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0364-9059
J9 IEEE J OCEANIC ENG
JI IEEE J. Ocean. Eng.
PD OCT
PY 2010
VL 35
IS 4
BP 779
EP 784
DI 10.1109/JOE.2010.2060551
PG 6
WC Engineering, Civil; Engineering, Ocean; Engineering, Electrical &
Electronic; Oceanography
SC Engineering; Oceanography
GA 688LP
UT WOS:000284851100011
ER
PT J
AU Andrew, RK
Zarnetske, MR
Howe, BM
Mercer, JA
AF Andrew, Rex K.
Zarnetske, Michael R.
Howe, Bruce M.
Mercer, James A.
TI Ship-Suspended Acoustical Transmitter Position Estimation and Motion
Compensation
SO IEEE JOURNAL OF OCEANIC ENGINEERING
LA English
DT Article
DE Acoustic tomography; acoustical tracking; Doppler; low-frequency
propagation; signal coherence; underwater acoustics
ID GENERALIZED-ALPHA METHOD; TIME INTEGRATION; DYNAMICS; RANGE; OCEAN
AB An acoustical transmitter was suspended at multiple depths to 800 m from the research vessel R/V Melville at several stations in the North Pacific in 2004. The 3-D position of the transmitter varied with time due to ship motion and subsurface currents. The transmitter 3-D position and velocity were subsequently estimated using a cable dynamics model forced by ship position, as measured by high-precision global positioning system (GPS), and subsurface currents, as measured by the onboard acoustical Doppler current profiler. These estimated positions and velocities varied in the horizontal up to +/- 10 m from the station "center" position, and +/- 0.5 m/s from zero, respectively. Auxiliary measurements indicate that these estimates were accurate along either horizontal coordinate to better than +/- 2 m and +/- 0.05 m/s, respectively. Transmitter motion dilates the apparent time base of the radiated signal, producing time-varying Doppler effects. Simulation and analysis are used to determine when the induced Doppler effect is significant, and a technique is presented that "de-dopplerizes" a received signal for arbitrary interplatform motion. One example, involving the transmitter motion solutions determined here, shows that the transmitter motion induces a root mean square (RMS) variability of roughly lambda/9 for a 75-Hz ranging signal on time scales of several minutes: a 41-point de-dopplerizing filter reduced this to lambda/121.
C1 [Andrew, Rex K.; Mercer, James A.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Howe, Bruce M.] Univ Hawaii Manoa, Dept Ocean & Resources Engn, Honolulu, HI 96822 USA.
[Zarnetske, Michael R.] USN, Sensors & Sonar Syst Dept, Undersea Warfare Ctr, Div Newport, Newport, RI 02841 USA.
RP Andrew, RK (reprint author), Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
EM randrew@apl.wash-ington.edu
RI Howe, Bruce/J-2807-2012
OI Howe, Bruce/0000-0001-5711-5253
FU U.S. Office of Naval Research [321OA, N00014-03-1-0181,
N00014-04-1-0416]; Applied Physics Laboratory; School of Oceanography,
University of Washington, Seattle
FX This work was supported by the U.S. Office of Naval Research code 321OA
under Grant N00014-03-1-0181. The work of M. R. Zarnetske was supported
by the U.S. Office of Naval Research Special Research Award in Ocean
Acoustics for Graduate Trainees N00014-04-1-0416, with additional
partial funding from the Applied Physics Laboratory and the School of
Oceanography, University of Washington, Seattle.
NR 27
TC 2
Z9 2
U1 2
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0364-9059
J9 IEEE J OCEANIC ENG
JI IEEE J. Ocean. Eng.
PD OCT
PY 2010
VL 35
IS 4
BP 797
EP 810
DI 10.1109/JOE.2010.2077750
PG 14
WC Engineering, Civil; Engineering, Ocean; Engineering, Electrical &
Electronic; Oceanography
SC Engineering; Oceanography
GA 688LP
UT WOS:000284851100013
ER
PT J
AU Tao, J
Zheng, YR
Xiao, CS
Yang, TC
AF Tao, Jun
Zheng, Yahong Rosa
Xiao, Chengshan
Yang, T. C.
TI Robust MIMO Underwater Acoustic Communications Using Turbo Block
Decision-Feedback Equalization
SO IEEE JOURNAL OF OCEANIC ENGINEERING
LA English
DT Article
DE Block decision-feedback equalizer (BDFE); multiple-input-multiple-output
(MIMO); turbo equalization; underwater acoustic communications
ID SHALLOW-WATER; TIME-REVERSAL; CHANNELS
AB In this paper, a robust detection scheme is proposed for high data rate single-carrier multiple-input-multiple-output (MIMO) underwater acoustic communications. The new scheme adopts turbo block decision-feedback equalization, where the soft-decision equalizer performs successive soft interference cancellation of both the intersymbol interference in the time domain, and the multiplexing interference in the space domain. Attributed to the inherent advantage of the block decision-feedback equalizer (BDFE) over other conventional equalizers, the MIMO turbo detection algorithm provides high performance with fast convergence speed. With the interblock interference properly removed, the MIMO BDFE is performed with overlapped information blocks without guard intervals, thus a high transmission efficiency is guaranteed and the performance degradation at the tail of each block is prevented. The MIMO channel is treated as time invariant over each small block, and is estimated with either the pilot symbols in the training mode or the previously detected symbols in the decision-directed mode. The proposed detection scheme has been tested by extensive experimental data and proved to be robust to different transmission environments. The experimental results for the undersea 2008 Surface Processes and Acoustic Communications Experiment (SPACE08) and the 2008 Gulf of Mexico Experiment (GOMEX08) are both reported.
C1 [Tao, Jun; Zheng, Yahong Rosa; Xiao, Chengshan] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA.
[Tao, Jun] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Yang, T. C.] USN, Res Lab, Washington, DC 20375 USA.
RP Tao, J (reprint author), Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA.
EM jtb84@mail.missouri.edu; zhengyr@mst.edu; xiaoc@mst.edu;
tc.yang@nrl.navy.mil
FU U.S. Office of Naval Research [N00014-10-1-0174]; National Science
Foundation [ECCS-0846486, CCF-0915846]; U.S. Office of Naval Research
FX This work was supported in part by the U.S. Office of Naval Research
under Grant N00014-10-1-0174 and the National Science Foundation under
Grants ECCS-0846486 and CCF-0915846. The work of T. C. Yang was
supported by the U.S. Office of Naval Research.
NR 33
TC 30
Z9 32
U1 1
U2 10
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0364-9059
J9 IEEE J OCEANIC ENG
JI IEEE J. Ocean. Eng.
PD OCT
PY 2010
VL 35
IS 4
BP 948
EP 960
DI 10.1109/JOE.2010.2077831
PG 13
WC Engineering, Civil; Engineering, Ocean; Engineering, Electrical &
Electronic; Oceanography
SC Engineering; Oceanography
GA 688LP
UT WOS:000284851100025
ER
PT J
AU Kersten, PR
Toporkov, JV
Ainsworth, TL
Sletten, MA
Jansen, RW
AF Kersten, Paul R.
Toporkov, Jakov V.
Ainsworth, Thomas L.
Sletten, Mark A.
Jansen, Robert W.
TI Estimating Surface Water Speeds With a Single-Phase Center SAR Versus an
Along-Track Interferometric SAR
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Synthetic aperture radar (SAR); time-frequency analysis
ID DUAL-BEAM INTERFEROMETRY; TIME-FREQUENCY ANALYSIS; MOVING TARGETS;
CURRENTS
AB Synthetic aperture radar (SAR) single-aperture systems are designed to image fixed scenes. Dual-antenna along-track interferometric (ATI) SAR systems are designed to detect moving targets and estimate their motion parameters. Although SAR systems are not designed to characterize moving targets, for localized targets, such as vehicles or ships, this problem has been addressed in the literature with some success. Distributed moving targets are hard to characterize, even for ATI systems. Estimating surface water speeds is an ideal example of this since the water returns are generated from weak returns randomly distributed in both time and space. The question asked here is can one measure surface water speeds with a single-phase center SAR system? The answer presented is a qualified yes, with the aid of an upper bound on the water speed, but not with the same accuracy as an ATI system. This upper bound and the collection geometry provide design criteria for the filtering of the phase information. Time-frequency (TF) methods provide another speed estimate as well as a rough profile of the speed across the water channel. A robust nonparametric TF method was developed and applied to estimate the speed. Comparisons between the ATI estimate and single-phase estimates are made using data from an X-band ATI-SAR system.
C1 [Kersten, Paul R.; Toporkov, Jakov V.; Ainsworth, Thomas L.; Sletten, Mark A.; Jansen, Robert W.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Kersten, PR (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
FU Naval Research Laboratory [72-8027, 72-6668-08-5]
FX Manuscript received September 25, 2008; revised September 15, 2009 and
February 16, 2010. Date of publication June 14, 2010; date of current
version September 24, 2010. The WINSAR data were supported in part by
the Naval Research Laboratory under Work Unit 72-8027 and Work Unit
72-6668-08-5.
NR 27
TC 2
Z9 2
U1 1
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD OCT
PY 2010
VL 48
IS 10
BP 3638
EP 3646
DI 10.1109/TGRS.2010.2048571
PG 9
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 669KY
UT WOS:000283349400004
ER
PT J
AU Narsingi, KY
Li, SB
Manasreh, MO
Weaver, BD
AF Narsingi, K. Y.
Li, Shibin
Manasreh, M. Omar
Weaver, Bradley D.
TI Optical Absorption of Proton Irradiated Colloidal CdSe/ZnS Core/Shell
Nanocrystals
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article
DE Infrared photodetector; proton irradiation; quantum dot; rapid thermal
annealing
ID MULTIPLE-QUANTUM WELLS; INTERSUBBAND TRANSITIONS; SOLAR-CELLS
AB The excitonic transition observed in the optical absorption spectra of CdSe/ZnS core/shell nanocrystals is investigated as a function of 2 MeV proton irradiation dose. Samples of three different nanocrystal diameters were prepared by embedding the nanocrystals into a UV curable resin. The integrated area of the exciton peak is obtained after irradiating the samples with several irradiation fluences ranging between 10.x 10(13) cm(-2) to 9.5x 10(15) cm(-2). The results indicate that nanocrystals with larger diameter (similar to 4.40 nm) are more irradiation tolerant while the excitonic transition is completely degraded in nanocrystals with diameter of similar to 2.10 nm.
C1 [Narsingi, K. Y.; Li, Shibin; Manasreh, M. Omar] Univ Arkansas, Fayetteville, AR 72701 USA.
[Weaver, Bradley D.] USN, Res Lab, Washington, DC 20375 USA.
RP Narsingi, KY (reprint author), Univ Arkansas, Fayetteville, AR 72701 USA.
EM manasreh@uark.edu
FU Air Force Office of Scientific Research EPSCoR [FA9550-06-1-0457]; Naval
Research Laboratory; Arkansas Science & Technology Authority
[AR/ASTA/07-ARMF-02]
FX This work was supported in part by the Air Force Office of Scientific
Research EPSCoR Grant FA9550-06-1-0457, by the Arkansas Science &
Technology Authority Grant AR/ASTA/07-ARMF-02, and by the Naval Research
Laboratory.
NR 14
TC 1
Z9 1
U1 1
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD OCT
PY 2010
VL 57
IS 5
BP 2929
EP 2932
DI 10.1109/TNS.2010.2062199
PN 3
PG 4
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 670PS
UT WOS:000283440400017
ER
PT J
AU Loveless, TD
Massengill, LW
Holman, WT
Bhuva, BL
McMorrow, D
Warner, JH
AF Loveless, Thomas Daniel
Massengill, Lloyd W.
Holman, W. Timothy
Bhuva, Bharat L.
McMorrow, Dale
Warner, Jeffrey H.
TI A Generalized Linear Model for Single Event Transient Propagation in
Phase-Locked Loops
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article
DE Circuit theory/modeling; phase locked loops; single event effects;
single event transients; transients
ID VOLTAGE-CONTROLLED OSCILLATORS; 2-PHOTON ABSORPTION; DESIGN; CMOS;
TECHNOLOGY; NOISE; PLLS
AB A first-order linear model is formulated in closed-form for the examination of transient propagation through charge pump phase-locked loops (PLL). As a result, a novel PLL design parameter-the PLL critical time constant-is discovered as the primary factor influencing extraneous transient generation and propagation through the PLL independent of technology node. Various simulations and experiments have been performed on PLL circuits designed in 130 nm and 90 nm technology nodes. Using the described simulation and laser two-photon absorption (TPA) techniques, the generalized model is shown to accurately predict the output phase displacements and critical time constant of the PLL following transient perturbations, validating the analytical results independent of technology and without the need for calibration parameters. Moreover, the characteristic critical time constant is shown to be valuable for identifying and evaluating the single-event vulnerabilities in charge pump PLL designs.
C1 [Loveless, Thomas Daniel; Massengill, Lloyd W.; Holman, W. Timothy; Bhuva, Bharat L.] Vanderbilt Univ, Inst Space & Def Elect, Nashville, TN 37235 USA.
[Loveless, Thomas Daniel; Massengill, Lloyd W.; Holman, W. Timothy; Bhuva, Bharat L.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[McMorrow, Dale; Warner, Jeffrey H.] USN, Res Lab, Washington, DC 20375 USA.
RP Loveless, TD (reprint author), Vanderbilt Univ, Inst Space & Def Elect, Nashville, TN 37235 USA.
EM daniel.loveless@vanderbilt.edu; lloyd.massengill@vanderbilt.edu;
tim.holman@vanderbilt.edu; bharat.l.bhuva@vanderbilt.edu;
mcmorrow@ccs.nrl.navy.mil; Jeffrey.Warner@nrl.navy.mil
RI Loveless, Thomas/G-9420-2011; Loveless, Thomas/C-7132-2016
FU Defense Threat Reduction Agency
FX This work was supported by the Defense Threat Reduction Agency Rad-Hard
Microelectronics Program.
NR 39
TC 14
Z9 14
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9499
J9 IEEE T NUCL SCI
JI IEEE Trans. Nucl. Sci.
PD OCT
PY 2010
VL 57
IS 5
BP 2933
EP 2947
DI 10.1109/TNS.2010.2066287
PN 3
PG 15
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 670PS
UT WOS:000283440400018
ER
PT J
AU Pezoa, JE
Dhakal, S
Hayat, MM
AF Pezoa, Jorge E.
Dhakal, Sagar
Hayat, Majeed M.
TI Maximizing Service Reliability in Distributed Computing Systems with
Random Node Failures: Theory and Implementation
SO IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
LA English
DT Article
DE Renewal theory; queuing theory; reliability; distributed computing; load
balancing
ID SIMULATED ANNEALING APPROACH; STRUCTURED GRID SERVICES; TASK-ALLOCATION;
PERFORMANCE; ALGORITHMS
AB In distributed computing systems (DCSs) where server nodes can fail permanently with nonzero probability, the system performance can be assessed by means of the service reliability, defined as the probability of serving all the tasks queued in the DCS before all the nodes fail. This paper presents a rigorous probabilistic framework to analytically characterize the service reliability of a DCS in the presence of communication uncertainties and stochastic topological changes due to node deletions. The framework considers a system composed of heterogeneous nodes with stochastic service and failure times and a communication network imposing random tangible delays. The framework also permits arbitrarily specified, distributed load-balancing actions to be taken by the individual nodes in order to improve the service reliability. The presented analysis is based upon a novel use of the concept of stochastic regeneration, which is exploited to derive a system of difference-differential equations characterizing the service reliability. The theory is further utilized to optimize certain load-balancing policies for maximal service reliability; the optimization is carried out by means of an algorithm that scales linearly with the number of nodes in the system. The analytical model is validated using both Monte Carlo simulations and experimental data collected from a DCS testbed.
C1 [Pezoa, Jorge E.; Hayat, Majeed M.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
[Pezoa, Jorge E.] Univ Concepcion, Dept Elect Engn, Concepcion, Chile.
[Dhakal, Sagar] USN, Res Lab, Washington, DC 20375 USA.
[Hayat, Majeed M.] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87131 USA.
RP Pezoa, JE (reprint author), Univ New Mexico, Dept Elect & Comp Engn, ECE Bldg,Room 327, Albuquerque, NM 87131 USA.
EM jpezoa@ece.unm.edu; sagar.dhakal@gmail.com; hayat@ece.unm.edu
RI Pezoa, Jorge E./G-1604-2014; Optica y Fotonica, Centro/I-4347-2015
OI Pezoa, Jorge E./0000-0002-5225-5334;
FU Defense Threat Reduction Agency; US National Science Foundation (NSF)
[ANI-0312611]
FX This work was supported by the Defense Threat Reduction Agency
(Combating WMD Basic Research Program) and in part by the US National
Science Foundation (NSF) (Award ANI-0312611). The author (Sagar Dhakal)
is an ASEE Postdoctoral Fellow in the Acoustic and Signal Processing
Branch at NRL. This work was conducted before he joined NRL and does not
represent any view from NRL.
NR 30
TC 10
Z9 11
U1 0
U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1045-9219
EI 1558-2183
J9 IEEE T PARALL DISTR
JI IEEE Trans. Parallel Distrib. Syst.
PD OCT
PY 2010
VL 21
IS 10
BP 1531
EP 1544
DI 10.1109/TPDS.2010.34
PG 14
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA 640EC
UT WOS:000281030200011
ER
PT J
AU Bailey, V
Carboni, V
Eichenberger, C
Naff, T
Smith, I
Warren, T
Whitney, B
Giri, D
Belt, D
Brown, D
Mazuc, A
Seale, T
AF Bailey, V.
Carboni, V.
Eichenberger, C.
Naff, T.
Smith, I.
Warren, T.
Whitney, B.
Giri, D.
Belt, D.
Brown, D.
Mazuc, A.
Seale, T.
TI A 6-MV Pulser to Drive Horizontally Polarized EMP Simulators
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Antenna; electromagnetic pulser (EMP); fast risetime; horizontal dipole;
Marx generator; peaking circuit
AB L-3 Pulse Sciences (L-3 PS) is fabricating a 6-MV biconic pulse generator to drive a horizontally polarized dipole electromagnetic pulse simulator antenna [1] at the Naval Air Systems Command, Pax River. The L-3 PS pulser, i.e., the horizontal fast rise electromagnetic pulser (HFREMP), will replace the Maxwell Laboratories ML-5 pulser. The HFREMP project is funded through the Central Test and Evaluation Investment Program (CTEIP). The CTEIP was established by the United States Department of Defense (DoD) to provide joint initiatives, avoid unwarranted duplication of capability, and increase interoperability through capability improvement projects for the DoD Major Ranges and Test Facility Bases. Like the Physics International Fast Risetime EMP Simulator (FEMPS) 2000, which drives an identical antenna at the Centre d'Etudes de Gramat, France, the HFREMP uses two stages of pulse compression. In fact, output capacitors, output switches, intermediate capacitors, and intermediate switches all use the same type of design as the FEMPS 2000. The Marx generator is of a different lower inductance design, and where FEMPS 2000 has a 2.7-MV Marx pulser in only one side, the HFREMP has a 3-MV pulser in each side of the 150-Omega bicone that is the central part of the antenna. When the HFREMP drives the existing Pax River antenna, which is a variable height antenna (30-18 m), it will produce a 60- to 117.5-kV/m peak at the reference sensor with a waveform similar to that of the ML-5, which produces 47-92 kV/m. The HFREMP has also been considered to drive a bounded wave antenna of a different design, which is a fixed height antenna (30 m), producing at the reference sensor a peak field of over 80 kV/m and a wider more smoothly decaying pulse. The design of the HFREMP is described and compared with the designs of ML-5 and FEMPS 2000. Predictions of its performance into both types of antennas are presented.
C1 [Bailey, V.; Carboni, V.; Eichenberger, C.; Naff, T.; Smith, I.; Warren, T.; Whitney, B.] L3 Commun Pulse Sci, San Leandro, CA 94577 USA.
[Giri, D.] Pro Tech, Alamo, CA 94507 USA.
[Belt, D.; Brown, D.; Mazuc, A.; Seale, T.] USN, Naval Air Syst Command, Patuxent River, MD 20670 USA.
RP Bailey, V (reprint author), L3 Commun Pulse Sci, San Leandro, CA 94577 USA.
NR 5
TC 4
Z9 7
U1 1
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD OCT
PY 2010
VL 38
IS 10
BP 2554
EP 2558
DI 10.1109/TPS.2010.2065245
PN 1
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA 670LE
UT WOS:000283422400008
ER
PT J
AU Hahn, KD
Bruner, N
Johnston, MD
Oliver, BV
Webb, TJ
Welch, DR
Cordova, SR
Crotch, I
Gignac, RE
Leckbee, JJ
Molina, I
Portillo, S
Threadgold, JR
Ziska, D
AF Hahn, Kelly D.
Bruner, Nichelle
Johnston, Mark D.
Oliver, Bryan V.
Webb, Timothy J.
Welch, Dale R.
Cordova, Steve R.
Crotch, Ian
Gignac, Raymond E.
Leckbee, Josh J.
Molina, Isidro
Portillo, Salvador
Threadgold, Jim R.
Ziska, Derek
TI Overview of Self-Magnetically Pinched-Diode Investigations on RITS-6
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Pinched-beam diodes; pulsed power; radiography; relativistic electron
beams
ID RADIOGRAPHIC APPLICATIONS; TRANSMISSION-LINES; IMPEDANCE; AWE
AB The electron-beam-driven self-magnetically pinched diode is a candidate for future flash X-ray radiographic sources. As presently fielded on Sandia Laboratories' six-cavity Radiographic Integrated Test Stand (RITS-6), the diode is capable of producing sub 3-mm radiation spot sizes and greater than 350 rads of hard X-rays at 1 m. The diode operates between 6 and 7 MV with a slowly decreasing impedance that falls from approximately 65 to 40 Omega during the main pulse. Sensitivity in diode operation is affected by the interaction of evolving plasmas from the cathode and anode, which seem to limit stable diode operation to a narrow parameter regime. To better quantify the diode physics, high-resolution time-resolved diagnostics have been utilized which include plasma spectroscopy, fast-gated imaging, X-ray p-i-n diodes, X-ray spot size, and diode and accelerator current measurements. Data from these diagnostics are also used to benchmark particle-in-cell simulations. An overview of results from experiments and simulations is presented.
C1 [Hahn, Kelly D.; Johnston, Mark D.; Oliver, Bryan V.; Webb, Timothy J.; Cordova, Steve R.; Leckbee, Josh J.; Molina, Isidro] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Bruner, Nichelle; Welch, Dale R.] Voss Sci LLC, Albuquerque, NM 87108 USA.
[Crotch, Ian; Threadgold, Jim R.] Atom Weap Estab, Aldermaston RG7 4PR, Berks, England.
[Gignac, Raymond E.] NS Technol, Las Vegas, NV 89193 USA.
[Portillo, Salvador] USN, Naval Surface Warfare Div, Dahlgren, VA 22448 USA.
[Ziska, Derek] Ktech Corp Inc, Albuquerque, NM 87106 USA.
RP Hahn, KD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM kdhahn@sandia.gov; mdjohn@sandia.gov; bvolive@sandia.gov;
tjwebb@sandia.gov; dalew@vosssci.com; srcordo@sandia.gov;
Ian.Crotch@awe.co.uk; regigna@sandia.gov; jjleckb@sandia.gov;
imolina@sandia.gov; salvador.portillo@navy.mil;
Jim.Threadgold@awe.co.uk; drziska@sandia.gov
FU Sandia National Laboratories; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]
FX This work was supported by the Sandia National Laboratories, Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Company, for
the U.S. Department of Energy's National Nuclear Security Administration
under Contract DE-AC04-94AL85000.
NR 28
TC 19
Z9 21
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD OCT
PY 2010
VL 38
IS 10
BP 2652
EP 2662
DI 10.1109/TPS.2010.2049128
PN 1
PG 11
WC Physics, Fluids & Plasmas
SC Physics
GA 670LE
UT WOS:000283422400022
ER
PT J
AU Baggenstoss, PM
AF Baggenstoss, Paul M.
TI A Multi-Resolution Hidden Markov Model Using Class-Specific Features
SO IEEE TRANSACTIONS ON SIGNAL PROCESSING
LA English
DT Article
DE Markov processes; speech processing; time series analysis
ID STATISTICAL PATTERN-RECOGNITION; SPEECH RECOGNITION; CLASSIFICATION;
SIGNALS; THEOREM
AB We apply the PDF projection theorem to generalize the hidden Markov model (HMM) to accommodate multiple simultaneous segmentations of the raw data and multiple feature extraction transformations. Different segment sizes and feature transformations are assigned to each state. The algorithm averages over all allowable segmentations by mapping the segmentations to a "proxy" HMM and using the forward procedure. A by-product of the algorithm is the set of a posteriori state probability estimates that serve as a description of the input data. These probabilities have simultaneously the temporal resolution of the smallest processing windows and the processing gain and frequency resolution of the largest processing windows. The method is demonstrated on the problem of precisely modeling the consonant "T" in order to detect the presence of a distinct "burst" component. We compare the algorithm against standard speech analysis methods using data from the TIMIT corpus.
C1 USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Baggenstoss, PM (reprint author), USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
EM p.m.baggenstoss@ieee.org
FU Office of Naval Research through NUWC [ONR321US]
FX Manuscript received August 18, 2009; accepted May 18, 2010. Date of
publication June 10, 2010; date of current version September 15, 2010.
The associate editor coordinating the review of this manuscript and
approving it for publication was Dr. Z. Jane Wang. This work was
supported by the Office of Naval Research ONR321US through regular
program funding and through NUWC discretionary research funding.
NR 43
TC 4
Z9 4
U1 0
U2 9
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1053-587X
EI 1941-0476
J9 IEEE T SIGNAL PROCES
JI IEEE Trans. Signal Process.
PD OCT
PY 2010
VL 58
IS 10
BP 5165
EP 5177
DI 10.1109/TSP.2010.2052458
PG 13
WC Engineering, Electrical & Electronic
SC Engineering
GA 668KQ
UT WOS:000283268000016
ER
PT J
AU Lee, DJ
Kaminer, I
Dobrokhodov, V
Jones, K
AF Lee, Deok-Jin
Kaminer, Isaac
Dobrokhodov, Vladimir
Jones, Kevin
TI Autonomous Feature Following for Visual Surveillance Using a Small
Unmanned Aerial Vehicle with Gimbaled Camera System
SO INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
LA English
DT Article
DE Autonomous navigation; imaging sensors; path following control;
real-time visual surveillance; stabilized gimbaled camera; unmanned
aerial robots
AB This paper represents the development of feature following control and distributed navigation algorithms for visual surveillance using a small unmanned aerial vehicle equipped with a low-cost imaging sensor unit. An efficient map-based feature generation and following control algorithm is developed to make an onboard imaging sensor to track a target. An efficient navigation system is also designed for real-time position and velocity estimates of the unmanned aircraft, which is used as inputs for the path following controller. The performance of the proposed autonomous path following capability with a stabilized gimbaled camera onboard a small unmanned aerial robot is demonstrated through flight tests with application to target tracking for real-time visual surveillance.
C1 [Lee, Deok-Jin] USN, Postgrad Sch, Ctr Autonomous Vehicle Res CAVR, Monterey, CA 93943 USA.
RP Lee, DJ (reprint author), USN, Postgrad Sch, Ctr Autonomous Vehicle Res CAVR, Monterey, CA 93943 USA.
EM djlee@nps.edu; kaminer@nps.edu; vldobr@nps.edu; kdjones@nps.edu
FU SOCOM under NPS-SOCOM TNT cooperative; National Research Council
FX This work was supported by SOCOM under NPS-SOCOM TNT cooperative. The
research of the first author is supported by the National Research
Council Associateship tenured at the Center for Autonomous Vehicle
Research at the Naval Postgraduate School.
NR 18
TC 12
Z9 13
U1 0
U2 6
PU INST CONTROL ROBOTICS & SYSTEMS, KOREAN INST ELECTRICAL ENGINEERS
PI BUCHEON
PA BUCHEON TECHNO PARK 401-1506, 193 YAKDAE-DONG WONMI-GU, BUCHEON,
GYEONGGI-DO 420-734, SOUTH KOREA
SN 1598-6446
J9 INT J CONTROL AUTOM
JI Int. J. Control Autom. Syst.
PD OCT
PY 2010
VL 8
IS 5
BP 957
EP 966
DI 10.1007/s12555-010-0504-1
PG 10
WC Automation & Control Systems
SC Automation & Control Systems
GA 657HK
UT WOS:000282403600005
ER
PT J
AU Warkentien, T
Crum-Cianflone, NF
AF Warkentien, T.
Crum-Cianflone, N. F.
TI An update on Cryptococcus among HIV-infected patients
SO INTERNATIONAL JOURNAL OF STD & AIDS
LA English
DT Review
DE Ctyptococcus; HIV; diagnosis; treatment
ID ACTIVE ANTIRETROVIRAL THERAPY; LIPOSOMAL AMPHOTERICIN-B; HIGH-DOSE
FLUCONAZOLE; RANDOMIZED-TRIAL; INTRACRANIAL-PRESSURE; IMMUNE
RECONSTITUTION; CEREBROSPINAL-FLUID; FUNGAL BURDEN; MENINGITIS; AIDS
AB Ctyptococcus remains an important opportunistic infection in HIV patients despite considerable declines in prevalence during the highly active antiretroviral therapy era. This is particularly apparent in sub-Saharan Africa, where Ctyptococcus continues to cause significant mortality and morbidity. This review discusses the microbiology, epidemiology, pathogenesis and clinical presentation of cryptococcal infections in HIV patients. Additionally, a detailed approach to the management of cryptococcosis is provided.
C1 [Warkentien, T.] USN, San Diego Med Ctr, Infect Dis Clin, Clin Invest Dept KCA, San Diego, CA 92134 USA.
[Crum-Cianflone, N. F.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
RP Warkentien, T (reprint author), USN, San Diego Med Ctr, Infect Dis Clin, Clin Invest Dept KCA, 34800 Bob Wilson Dr,St 5, San Diego, CA 92134 USA.
EM tyler.warkentien@med.navy.mil
FU NIAID NIH HHS [HU0001-05-2-0011]; PHS HHS [HU0001-05-2-0011]
NR 57
TC 20
Z9 23
U1 1
U2 4
PU ROYAL SOC MEDICINE PRESS LTD
PI LONDON
PA 1 WIMPOLE STREET, LONDON W1G 0AE, ENGLAND
SN 0956-4624
J9 INT J STD AIDS
JI Int. J. STD AIDS
PD OCT
PY 2010
VL 21
IS 10
BP 679
EP 684
DI 10.1258/ijsa.2010.010182
PG 6
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 704EB
UT WOS:000286032800002
PM 21139145
ER
PT J
AU Pietrzak, RH
Goldstein, MB
Malley, JC
Rivers, AJ
Johnson, DC
Morgan, CA
Southwick, SM
AF Pietrzak, Robert H.
Goldstein, Marc B.
Malley, James C.
Rivers, Alison J.
Johnson, Douglas C.
Morgan, Charles A., III
Southwick, Steven M.
TI Posttraumatic growth in Veterans of Operations Enduring Freedom and
Iraqi Freedom
SO JOURNAL OF AFFECTIVE DISORDERS
LA English
DT Article
DE Posttraumatic stress disorder; Trauma; Posttraumatic growth; Veterans;
Social support; Psychosocial; Resilience
ID TRAUMATIC BRAIN-INJURY; MENTAL-HEALTH PROBLEMS; STRESS-DISORDER; SOCIAL
SUPPORT; POSITIVE CHANGE; WAR; RESILIENCE; SYMPTOMS; SURVIVORS; SOLDIERS
AB Objective: A growing body of research has examined the prevalence and correlates of psychopathology, mild traumatic brain injury, and related problems in Veterans of Operations Enduring Freedom and Iraqi Freedom (OEF-OIF). While these studies help characterize the deleterious effects of combat, no known study has examined factors that may enhance posttraumatic growth or positive changes experienced as a result of combat in this population.
Method: A total of 272 predominantly older Reservist/National Guard OEF-OIF Veterans completed an anonymous mail survey that assessed combat exposure, psychopathology, psychosocial functioning, social support, and posttraumatic growth.
Results: Seventy-two percent of the sample endorsed a significant degree of posttraumatic growth in at least one of the areas assessed, the most common of which were changing priorities about what is important in life (52.2%), being able to better appreciate each day (51.1%), and being better able to handle difficulties (48.5%). Hierarchical regression analysis revealed that younger age, greater posttraumatic stress disorder (PTSD) symptoms, and increased perceptions of unit member support and effort/perseverance were significantly associated with posttraumatic growth. Respondents with PTSD scored higher on an overall measure of posttraumatic growth and on items reflecting appreciation of life and personal strength.
Limitations: This study is limited by a relatively low survey return rate and employment of an abbreviated measure of posttraumatic growth.
Conclusions: Results of this study suggest that interventions to bolster unit member support and to enhance perceptions of effort and perseverance may help promote posttraumatic growth in OEF-OIF Veterans. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Pietrzak, Robert H.; Rivers, Alison J.; Morgan, Charles A., III; Southwick, Steven M.] Yale Univ, Sch Med, Dept Psychiat, West Haven, CT 06516 USA.
[Pietrzak, Robert H.; Rivers, Alison J.; Morgan, Charles A., III; Southwick, Steven M.] VA Connecticut Healthcare Syst, Resilience Lab, Natl Ctr Posttraumat Stress Disorder, West Haven, CT USA.
[Goldstein, Marc B.] Cent Connecticut State Univ, Dept Psychol, New Britain, CT 06050 USA.
[Malley, James C.] Cent Connecticut State Univ, Dept Counseling & Family Therapy, New Britain, CT 06050 USA.
[Johnson, Douglas C.] Univ Calif San Diego, Sch Med, Naval Hlth Res Ctr, San Diego, CA 92103 USA.
[Johnson, Douglas C.] Univ Calif San Diego, Sch Med, Dept Psychiat, San Diego, CA 92103 USA.
RP Pietrzak, RH (reprint author), Yale Univ, Sch Med, Dept Psychiat, 950 Campbell Ave 151E, West Haven, CT 06516 USA.
EM robert.pietrzak@yale.edu
FU State of Connecticut; Department of Mental Health and Addiction
Services; National Center for PTSD
FX We thank the veterans who participated in this survey. We appreciate the
assistance of the Center for Public Policy and Social Research at
Central Connecticut State University and the Connecticut Department of
Veterans' Affairs in conducting this research. This work was supported
by grants from the State of Connecticut, the Department of Mental Health
and Addiction Services, the National Center for PTSD, and a private
gift.
NR 45
TC 31
Z9 32
U1 1
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0165-0327
J9 J AFFECT DISORDERS
JI J. Affect. Disord.
PD OCT
PY 2010
VL 126
IS 1-2
BP 230
EP 235
DI 10.1016/j.jad.2010.03.021
PG 6
WC Clinical Neurology; Psychiatry
SC Neurosciences & Neurology; Psychiatry
GA 658KD
UT WOS:000282488000029
PM 20399504
ER
PT J
AU Robandt, PV
Bui, HM
Scancella, JM
Klette, KL
AF Robandt, P. V.
Bui, H. M.
Scancella, J. M.
Klette, K. L.
TI Automated Solid-Phase Extraction-Liquid Chromatography-Tandem Mass
Spectrometry Analysis of 6-Acetylmorphine in Human Urine Specimens:
Application for a High-Throughput Urine Analysis Laboratory
SO JOURNAL OF ANALYTICAL TOXICOLOGY
LA English
DT Article
ID HEROIN USE; SAMPLES; BENZOYLECGONINE; OPIATE; DRUG
C1 [Robandt, P. V.; Bui, H. M.; Scancella, J. M.; Klette, K. L.] USN, Drug Screening Lab, San Diego, CA 92134 USA.
RP Robandt, PV (reprint author), USN, Drug Screening Lab, 34425 Farenholt Ave,Bldg 26-2B,Suite 40, San Diego, CA 92134 USA.
NR 15
TC 1
Z9 1
U1 0
U2 4
PU PRESTON PUBL INC
PI NILES
PA 6600 W TOUHY AVE, NILES, IL 60714-4588 USA
SN 0146-4760
J9 J ANAL TOXICOL
JI J. Anal. Toxicol.
PD OCT
PY 2010
VL 34
IS 8
SI SI
BP 470
EP 475
PG 6
WC Chemistry, Analytical; Toxicology
SC Chemistry; Toxicology
GA 654SS
UT WOS:000282191200007
PM 21819792
ER
PT J
AU Ellenberger, NW
AF Ellenberger, Nancy W.
TI From Jack Tar to Union Jack: Representing Naval Manhood in the British
Empire, 1870-1918
SO JOURNAL OF BRITISH STUDIES
LA English
DT Book Review
C1 [Ellenberger, Nancy W.] USN Acad, Annapolis, MD 21402 USA.
RP Ellenberger, NW (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0021-9371
J9 J BRIT STUD
JI J. Br. Stud.
PD OCT
PY 2010
VL 49
IS 4
BP 896
EP 897
PG 2
WC History
SC History
GA 658RR
UT WOS:000282507600025
ER
PT J
AU Butchart, N
Cionni, I
Eyring, V
Shepherd, TG
Waugh, DW
Akiyoshi, H
Austin, J
Bruhl, C
Chipperfield, MP
Cordero, E
Dameris, M
Deckert, R
Dhomse, S
Frith, SM
Garcia, RR
Gettelman, A
Giorgetta, MA
Kinnison, DE
Li, F
Mancini, E
McLandress, C
Pawson, S
Pitari, G
Plummer, DA
Rozanov, E
Sassi, F
Scinocca, JF
Shibata, K
Steil, B
Tian, W
AF Butchart, Neal
Cionni, I.
Eyring, V.
Shepherd, T. G.
Waugh, D. W.
Akiyoshi, H.
Austin, J.
Bruehl, C.
Chipperfield, M. P.
Cordero, E.
Dameris, M.
Deckert, R.
Dhomse, S.
Frith, S. M.
Garcia, R. R.
Gettelman, A.
Giorgetta, M. A.
Kinnison, D. E.
Li, F.
Mancini, E.
McLandress, C.
Pawson, S.
Pitari, G.
Plummer, D. A.
Rozanov, E.
Sassi, F.
Scinocca, J. F.
Shibata, K.
Steil, B.
Tian, W.
TI Chemistry-Climate Model Simulations of Twenty-First Century
Stratospheric Climate and Circulation Changes
SO JOURNAL OF CLIMATE
LA English
DT Article
ID MIDDLE ATMOSPHERE MODEL; GRAVITY-WAVE DRAG; BREWER-DOBSON CIRCULATION;
MIXED GREENHOUSE GASES; ANTARCTIC OZONE HOLE; METEOROLOGICAL ANALYSES;
INTERACTIVE CHEMISTRY; TROPOSPHERE EXCHANGE; CLOUD FORMATION;
WATER-VAPOR
AB The response of stratospheric climate and circulation to increasing amounts of greenhouse gases (GHGs) and ozone recovery in the twenty-first century is analyzed in simulations of 11 chemistry-climate models using near-identical forcings and experimental setup. In addition to an overall global cooling of the stratosphere in the simulations (0.59 +/- 6 0.07 K decade(-1) at 10 hPa), ozone recovery causes a warming of the Southern Hemisphere polar lower stratosphere in summer with enhanced cooling above. The rate of warming correlates with the rate of ozone recovery projected by the models and, on average, changes from 0.8 to 0.48 K decade(-1) at 100 hPa as the rate of recovery declines from the first to the second half of the century. In the winter northern polar lower stratosphere the increased radiative cooling from the growing abundance of GHGs is, in most models, balanced by adiabatic warming from stronger polar downwelling. In the Antarctic lower stratosphere the models simulate an increase in low temperature extremes required for polar stratospheric cloud (PSC) formation, but the positive trend is decreasing over the twenty-first century in all models. In the Arctic, none of the models simulates a statistically significant increase in Arctic PSCs throughout the twenty-first century. The subtropical jets accelerate in response to climate change and the ozone recovery produces a westward acceleration of the lower-stratospheric wind over the Antarctic during summer, though this response is sensitive to the rate of recovery projected by the models. There is a strengthening of the Brewer-Dobson circulation throughout the depth of the stratosphere, which reduces the mean age of air nearly everywhere at a rate of about 0.05 yr decade(-1) in those models with this diagnostic. On average, the annual mean tropical upwelling in the lower stratosphere (similar to 70 hPa) increases by almost 2% decade(-1), with 59% of this trend forced by the parameterized orographic gravity wave drag in the models. This is a consequence of the eastward acceleration of the subtropical jets, which increases the upward flux of (parameterized) momentum reaching the lower stratosphere in these latitudes.
C1 [Butchart, Neal] Hadley Ctr, Met Off, Exeter EX1 3PB, Devon, England.
[Cionni, I.; Eyring, V.; Dameris, M.; Deckert, R.] Deutsch Zentrum Luft & Raumfahrt, Oberpfaffenhofen, Germany.
[Shepherd, T. G.; McLandress, C.] Univ Toronto, Toronto, ON, Canada.
[Waugh, D. W.] Johns Hopkins Univ, Baltimore, MD USA.
[Akiyoshi, H.] Natl Inst Environm Studies, Tsukuba, Ibaraki, Japan.
[Austin, J.] Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Bruehl, C.; Steil, B.] Max Planck Inst Chem, D-55128 Mainz, Germany.
[Chipperfield, M. P.; Dhomse, S.; Tian, W.] Univ Leeds, Leeds, W Yorkshire, England.
[Cordero, E.] San Jose State Univ, San Jose, CA 95192 USA.
[Frith, S. M.] Sci Syst & Applicat Inc, Lanham, MD USA.
[Garcia, R. R.; Gettelman, A.; Kinnison, D. E.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Giorgetta, M. A.] Max Planck Inst Meteorol, Hamburg, Germany.
[Li, F.] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA.
[Mancini, E.; Pitari, G.] Univ Aquila, I-67100 Laquila, Italy.
[Pawson, S.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Plummer, D. A.] Environm Canada, Toronto, ON, Canada.
[Rozanov, E.] World Radiat Ctr, Phys Meteorol Observ, Davos, Switzerland.
[Rozanov, E.] Swiss Fed Inst Technol, Zurich, Switzerland.
[Sassi, F.] USN, Res Lab, Washington, DC 20375 USA.
[Scinocca, J. F.] Univ Victoria, Meteorol Serv Canada, Victoria, BC, Canada.
[Shibata, K.] Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan.
RP Butchart, N (reprint author), Hadley Ctr, Met Off, FitzRoy Rd, Exeter EX1 3PB, Devon, England.
EM neal.butchart@metoffice.gov.uk
RI Dhomse, Sandip/C-8198-2011; Rozanov, Eugene/A-9857-2012; Li,
Feng/H-2241-2012; Chipperfield, Martyn/H-6359-2013; Pawson,
Steven/I-1865-2014; Waugh, Darryn/K-3688-2016; Pitari,
Giovanni/O-7458-2016; Eyring, Veronika/O-9999-2016;
OI Dhomse, Sandip/0000-0003-3854-5383; Sassi, Fabrizio/0000-0002-9492-7434;
Rozanov, Eugene/0000-0003-0479-4488; Chipperfield,
Martyn/0000-0002-6803-4149; Pawson, Steven/0000-0003-0200-717X; Waugh,
Darryn/0000-0001-7692-2798; Pitari, Giovanni/0000-0001-7051-9578;
Eyring, Veronika/0000-0002-6887-4885; Mancini, Eva/0000-0001-7071-0292
FU European Commission [505390-GOCE-CT-2004]; DECC [GA01101]; Defra
[GA01101]; MoD [CBC/2B/0417_Annex C5]; SCOUT [O3]; Ministry of the
Environment (MOE) of Japan [A-071]; Canadian Foundation for Climate and
Atmospheric Sciences
FX The authors acknowledge the Chemistry-Climate Model Validation Activity
(CCMVal) of the WCRP's (World Climate Research Programme) SPARC
(Stratospheric Processes and their Role in Climate) project for
organizing and coordinating the model data analysis activity, and the
British Atmospheric Data Centre (BADC) for collecting and archiving the
CCMVal model output. The European groups acknowledge support of the EC
Integrated Project SCOUT-O3 (505390-GOCE-CT-2004) funded by the European
Commission. Dr. Butchart's research was supported by the Joint DECC,
Defra, and MoD Integrated Climate Programme-DECC/Defra (GA01101), MoD
(CBC/2B/0417_Annex C5), and SCOUT-O3. CCSR/NIES research was supported
by the Global Environmental Research Fund (GERF) of the Ministry of the
Environment (MOE) of Japan (A-071). The CMAM research was supported by
the Canadian Foundation for Climate and Atmospheric Sciences through the
C-SPARC project. GEOS CCM simulations were conducted on NASA's
High-Performance computing resources at NASA Ames Research Center. The
MRI simulation was made with the supercomputer at the National Institute
for Environmental Studies, Japan.
NR 81
TC 135
Z9 136
U1 4
U2 79
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
EI 1520-0442
J9 J CLIMATE
JI J. Clim.
PD OCT
PY 2010
VL 23
IS 20
BP 5349
EP 5374
DI 10.1175/2010JCLI3404.1
PG 26
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 681IW
UT WOS:000284306200001
ER
PT J
AU Kelly, RJ
Carter, C
Giaccone, G
AF Kelly, Ronan J.
Carter, Corey
Giaccone, Giuseppe
TI Personalizing Therapy in an Epidermal Growth Factor Receptor-Tyrosine
Kinase Inhibitor-Resistant Non-Small-Cell Lung Cancer Using PF-00299804
and Trastuzumab
SO JOURNAL OF CLINICAL ONCOLOGY
LA English
DT Article
ID PHASE-II TRIAL; DIMERIZATION INHIBITOR; OVEREXPRESSION; EXPRESSION;
GEFITINIB; CARCINOMA; GEMCITABINE; PERTUZUMAB; MUTATIONS; CISPLATIN
C1 [Kelly, Ronan J.; Giaccone, Giuseppe] NCI, Mark O Hatfield Clin Res Ctr, Bethesda, MD 20892 USA.
[Carter, Corey] USN, Natl Med Ctr, Bethesda, MD 20084 USA.
RP Kelly, RJ (reprint author), NCI, Mark O Hatfield Clin Res Ctr, Bethesda, MD 20892 USA.
RI Giaccone, Giuseppe/E-8297-2017
OI Giaccone, Giuseppe/0000-0002-5023-7562
NR 25
TC 31
Z9 32
U1 1
U2 2
PU AMER SOC CLINICAL ONCOLOGY
PI ALEXANDRIA
PA 2318 MILL ROAD, STE 800, ALEXANDRIA, VA 22314 USA
SN 0732-183X
EI 1527-7755
J9 J CLIN ONCOL
JI J. Clin. Oncol.
PD OCT 1
PY 2010
VL 28
IS 28
BP E507
EP E510
DI 10.1200/JCO.2010.29.3126
PG 4
WC Oncology
SC Oncology
GA 655TP
UT WOS:000282272700004
PM 20679607
ER
PT J
AU Bennett, BR
Khan, SA
Boos, JB
Papanicolaou, NA
Kuznetsov, VV
AF Bennett, Brian R.
Khan, Saara A.
Boos, J. Brad
Papanicolaou, Nicolas A.
Kuznetsov, Vladimir V.
TI AlGaSb Buffer Layers for Sb-Based Transistors
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article
DE InAs; AlGaSb; high-electron-mobility transistor (HEMT); molecular beam
epitaxy (MBE); field-effect transistor (FET); buffer layer
ID HIGH-ELECTRON-MOBILITY; FIELD-EFFECT TRANSISTORS; QUANTUM-WELL
STRUCTURES; MOLECULAR-BEAM EPITAXY; LOW-NOISE AMPLIFIER; INAS/ALSB HEMT;
TRANSPORT-PROPERTIES; ALSB; GROWTH; INTERFACE
AB InAs quantum wells can serve as the channel for high-electron-mobility transistors. Structures are typically grown on semi-insulating GaAs substrates with 1.5 mu m to 3.0 mu m buffer layers of AlSb and AlGaSb accommodating the lattice mismatch. We demonstrate that high electron mobility in the InAs (>20,000 cm(2)/V s at 300 K) and smooth surfaces can be achieved with Al(0.8)Ga(0.2)Sb buffer layers as thin as 600 nm, grown at rates of 1.5 monolayers/s to 2.0 monolayers/s. The use of thinner buffer layers reduces molecular beam epitaxial growth time and source consumption. The buffer layers also exhibit higher resistivity, which should reduce excess gate leakage current and improve device isolation.
C1 [Bennett, Brian R.; Khan, Saara A.; Boos, J. Brad; Papanicolaou, Nicolas A.; Kuznetsov, Vladimir V.] USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
RP Bennett, BR (reprint author), USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
EM brian.bennett@nrl.navy.mil
RI Bennett, Brian/A-8850-2008
OI Bennett, Brian/0000-0002-2437-4213
FU Office of Naval Research
FX The authors thank Dr. M.G. Ancona for band structure calculations and
the Office of Naval Research for support.
NR 36
TC 6
Z9 6
U1 1
U2 14
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD OCT
PY 2010
VL 39
IS 10
BP 2196
EP 2202
DI 10.1007/s11664-010-1295-0
PG 7
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 662EJ
UT WOS:000282789800003
ER
PT J
AU Eck, TF
Holben, BN
Sinyuk, A
Pinker, RT
Goloub, P
Chen, H
Chatenet, B
Li, Z
Singh, RP
Tripathi, SN
Reid, JS
Giles, DM
Dubovik, O
O'Neill, NT
Smirnov, A
Wang, P
Xia, X
AF Eck, T. F.
Holben, B. N.
Sinyuk, A.
Pinker, R. T.
Goloub, P.
Chen, H.
Chatenet, B.
Li, Z.
Singh, R. P.
Tripathi, S. N.
Reid, J. S.
Giles, D. M.
Dubovik, O.
O'Neill, N. T.
Smirnov, A.
Wang, P.
Xia, X.
TI Climatological aspects of the optical properties of fine/coarse mode
aerosol mixtures
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SKY RADIANCE MEASUREMENTS; BLACK CARBON AEROSOLS; ACE-ASIA;
LIGHT-ABSORPTION; WAVELENGTH DEPENDENCE; SIZE DISTRIBUTION; COLUMN
CLOSURE; SOURCE REGIONS; DUST AEROSOLS; WATER-VAPOR
AB Aerosol mixtures composed of coarse mode desert dust combined with fine mode combustion generated aerosols (from fossil fuel and biomass burning sources) were investigated at three locations that are in and/or downwind of major global aerosol emission source regions. Multiyear monitoring data at Aerosol Robotic Network sites in Beijing (central eastern China), Kanpur (Indo-Gangetic Plain, northern India), and Ilorin (Nigeria, Sudanian zone of West Africa) were utilized to study the climatological characteristics of aerosol optical properties. Multiyear climatological averages of spectral single scattering albedo (SSA) versus fine mode fraction (FMF) of aerosol optical depth at 675 nm at all three sites exhibited relatively linear trends up to similar to 50% FMF. This suggests the possibility that external linear mixing of both fine and coarse mode components (weighted by FMF) dominates the SSA variation, where the SSA of each component remains relatively constant for this range of FMF only. However, it is likely that a combination of other factors is also involved in determining the dynamics of SSA as a function of FMF, such as fine mode particles adhering to coarse mode dust. The spectral variation of the climatological averaged aerosol absorption optical depth (AAOD) was nearly linear in logarithmic coordinates over the wavelength range of 440-870 nm for both the Kanpur and Ilorin sites. However, at two sites in China (Beijing and Xianghe), a distinct nonlinearity in spectral AAOD in logarithmic space was observed, suggesting the possibility of anomalously strong absorption in coarse mode aerosols increasing the 870 nm AAOD.
C1 [Eck, T. F.; Holben, B. N.; Sinyuk, A.; Giles, D. M.; Smirnov, A.] NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA.
[Eck, T. F.] Univ Maryland, Goddard Earth Sci & Technol Ctr, Baltimore, MD 21201 USA.
[Sinyuk, A.; Giles, D. M.] Sigma Space Corp, Lanham, MD USA.
[Pinker, R. T.; Li, Z.] Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA.
[Goloub, P.; Dubovik, O.] Univ Lille 1, Opt Atmospher Lab, F-59655 Villeneuve Dascq, France.
[Chen, H.] Chinese Acad Sci, Div Middle Atmosphere & Remote Sensing, Beijing 100029, Peoples R China.
[Chatenet, B.] Univ Paris Est Paris Diderot Paris 7, CNRS, LISA, F-94010 Creteil, France.
[Singh, R. P.] Chapman Univ, Orange, CA 92866 USA.
[Tripathi, S. N.] Indian Inst Technol, Dept Civil Engn, Kanpur 208016, Uttar Pradesh, India.
[Reid, J. S.] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[O'Neill, N. T.] Univ Sherbrooke, CARTEL, Sherbrooke, PQ J1K 2R1, Canada.
[Wang, P.; Xia, X.] Chinese Acad Sci, Inst Atmospher Phys, LAGEO, Beijing 100029, Peoples R China.
RP Eck, TF (reprint author), NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA.
EM thomas.f.eck@nasa.gov
RI Pinker, Rachel/F-6565-2010; Smirnov, Alexander/C-2121-2009; ECK,
THOMAS/D-7407-2012; Singh, Ramesh/G-7240-2012; Xia, Xiangao/G-5545-2011;
Dubovik, Oleg/A-8235-2009; Reid, Jeffrey/B-7633-2014; Tripathi,
Sachchida/J-4840-2016; Li, Zhanqing/F-4424-2010
OI Xia, Xiangao/0000-0002-4187-6311; Dubovik, Oleg/0000-0003-3482-6460;
Reid, Jeffrey/0000-0002-5147-7955; Li, Zhanqing/0000-0001-6737-382X
FU NASA; Department of Science and Technology, ICRP; Indian Space Research
Organisation; ISRO-GBP
FX The AERONET project was supported by Michael D. King, retired in 2008
from the NASA EOS project office, and by Hal B. Maring, Radiation
Sciences Program, NASA Headquarters. S. N. Tripathi acknowledges support
from Department of Science and Technology, ICRP and Indian Space
Research Organisation GBP programmes. S. N. Tripathi was also supported
in part by appointment to the NASA Postdoctoral Program at Goddard Space
Flight Center, administered by Oak Ridge Associated Universities through
a contract with NASA. The authors are indebted to Harish Vishwakarma for
his efforts in the operation of Kanpur AERONET instruments and to
ISRO-GBP for financial support to R. P. Singh through a research
project.
NR 67
TC 153
Z9 154
U1 4
U2 35
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 OCT 1
PY 2010
VL 115
AR D19205
DI 10.1029/2010JD014002
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 658RQ
UT WOS:000282507500011
ER
PT J
AU Crum-Cianflone, NF
Hullsiek, KH
Roediger, M
Ganesan, A
Patel, S
Landrum, ML
Weintrob, A
Agan, BK
Medina, S
Rahkola, J
Hale, BR
Janoff, EN
AF Crum-Cianflone, Nancy F.
Hullsiek, Katherine Huppler
Roediger, Mollie
Ganesan, Anuradha
Patel, Sugat
Landrum, Michael L.
Weintrob, Amy
Agan, Brian K.
Medina, Sheila
Rahkola, Jeremy
Hale, Braden R.
Janoff, Edward N.
CA Infect Dis Clinical Res Program HI
TI A Randomized Clinical Trial Comparing Revaccination with Pneumococcal
Conjugate Vaccine to Polysaccharide Vaccine among HIV-Infected Adults
SO JOURNAL OF INFECTIOUS DISEASES
LA English
DT Article
ID IMMUNODEFICIENCY-VIRUS-INFECTION; PROTECTIVE ANTIBODY-RESPONSES; CELL
TRANSPLANTATION; DOUBLE-BLIND; DISEASE; CHILDREN; IMMUNOGENICITY;
IMMUNIZATION; BACTEREMIA; TYPE-1
AB Background. The risk of pneumococcal disease persists, and antibody responses to revaccination with the 23-valent polysaccharide vaccine (PPV) are low among human immunodeficiency virus (HIV)-infected adults. We determined whether revaccination with the 7-valent pneumococcal conjugate vaccine (PCV) would enhance these responses.
Methods. In a randomized clinical trial, we compared the immunogenicity of revaccination with PCV (np) or PPV (n = 73) among HIV-infected adults (median CD4 cell count, 533 cells/mm(3)) who had been vaccinated with PPV 3-8 years earlier. HIV-uninfected adults (n = 25) without prior pneumococcal vaccination received 1 dose of PCV. A positive response was defined as a >= 2-fold increase (from baseline to day 60) in capsule-specific immunoglobulin G, with a postvaccination level >= 1000 ng/mL for at least 2 of the 4 serotypes.
Results. HIV-infected persons demonstrated a higher frequency of positive antibody responses to PCV than to PPV (57% vs 36%) (Pp. 004) and greater mean changes in the immunoglobulin G concentration from baseline to day 60 for serotypes 4, 9V, and 19F (P<.05, for all), but not for serotype 14. However, by day 180, both outcomes were similar. Responses to PCV were greater in frequency and magnitude for all serotypes in HIV-uninfected adults, compared with those in HIV-infected adults.
Conclusions. Among persons with HIV infection, revaccination with PCV was only transiently more immunogenic than PPV, and responses were inferior to those in HIV-uninfected subjects with primary vaccination. Pneumococcal vaccines with more robust and sustained immunogenicity are needed for HIV-infected adults.
C1 [Crum-Cianflone, Nancy F.] USN, San Diego Med Ctr, Clin Invest Dept KCA, Infect Dis Clin, San Diego, CA 92134 USA.
[Crum-Cianflone, Nancy F.; Hullsiek, Katherine Huppler; Roediger, Mollie; Ganesan, Anuradha; Landrum, Michael L.; Weintrob, Amy; Agan, Brian K.; Medina, Sheila; Hale, Braden R.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Ganesan, Anuradha] USN, Med Ctr, Infect Dis Clin, Bethesda, MD 20814 USA.
[Hullsiek, Katherine Huppler; Roediger, Mollie] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Patel, Sugat] USN, Med Ctr Portsmouth, Infect Dis Clin, Portsmouth, VA USA.
[Landrum, Michael L.] San Antonio Mil Med Ctr, Infect Dis Serv, San Antonio, TX USA.
[Weintrob, Amy] Walter Reed Army Med Ctr, Infect Dis Clin, Washington, DC 20307 USA.
[Rahkola, Jeremy; Janoff, Edward N.] Univ Colorado, Div Infect Dis, Mucosal & Vaccine Res Program Colorado, Denver, CO 80202 USA.
[Janoff, Edward N.] Denver Vet Affairs Med Ctr, Denver, CO USA.
RP Crum-Cianflone, NF (reprint author), USN, San Diego Med Ctr, Clin Invest Dept KCA, Infect Dis Clin, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil; braden.hale@med.navy.mil
OI Polis, Michael/0000-0002-9151-2268; Agan, Brian/0000-0002-5114-1669
FU NIAID NIH HHS [Y01 AI005072, Y1-AI-5072]
NR 35
TC 42
Z9 44
U1 0
U2 1
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0022-1899
J9 J INFECT DIS
JI J. Infect. Dis.
PD OCT 1
PY 2010
VL 202
IS 7
BP 1114
EP 1125
DI 10.1086/656147
PG 12
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 651FR
UT WOS:000281912100016
PM 20795819
ER
PT J
AU Lambrakos, SG
Michopoulos, JG
AF Lambrakos, S. G.
Michopoulos, J. G.
TI Inverse Analysis of Rapid and Localized Energy Deposition
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE filtering; heat deposition; inverse problems; multiscale
AB This paper examines multiscale inverse analysis of rapid and localized energy deposition, where there exists extremely strong filtering of spatial and temporal structure within the associated diffusion pattern. This strong filtering tends to establish conditions where system identification, or in particular reconstruction of detailed features of the energy source, based on data-driven inverse analysis of the diffusion pattern alone is not well posed. An accurate and well-posed characterization of rapid energy deposition processes should be in terms of two distinctly separate scales for both spatial and temporal structures. Accordingly, the inverse rapid and localized energy deposition problem requires a formulation with respect to system identification and parameterization that should be cast in terms of two separate sets of parameters. One should represent energy source characteristics on spatial and temporal scales commensurate with that of thermal diffusivity within the material. The other parameter set should represent energy source characteristics on spatial and temporal scales commensurate with those of surface phenomena. The general procedure presented here for inverse analysis of rapid and localized energy deposition is formulated in terms of these two separate sets of parameters.
C1 [Lambrakos, S. G.; Michopoulos, J. G.] USN, Computat Multiphys Syst Lab, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
RP Lambrakos, SG (reprint author), USN, Computat Multiphys Syst Lab, Ctr Computat Mat Sci, Res Lab, Code 6394, Washington, DC 20375 USA.
EM lambrakos@anvil.nrl.navy.mil
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
FU Office of Naval Research (ONR); Naval Research Laboratory (NRL)
FX The authors acknowledge the support by the Office of Naval Research
(ONR) and the Naval Research Laboratory (NRL) internal core program.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD OCT
PY 2010
VL 19
IS 7
BP 928
EP 935
DI 10.1007/s11665-009-9561-0
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA 658QN
UT WOS:000282504600002
ER
PT J
AU Samanta, G
Housiadas, KD
Beris, AN
Handler, R
AF Samanta, Gaurab
Housiadas, Kostas D.
Beris, Antony N.
Handler, Robert
TI Data reduction in viscoelastic turbulent channel flows based on extended
Karhunen-Loeve analysis
SO JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
LA English
DT Article
DE Viscoelasticity; Turbulent channel flow; Pseudodissipation; Enstrophy;
Karhunen-Loeve; Data reduction; Extensional deformation rate; Buffer
layer
ID DIRECT NUMERICAL-SIMULATION; DRAG-REDUCING FLOW; NONLINEAR
TRAVELING-WAVES; EXACT COHERENT STRUCTURES; PIPE-FLOW; RHEOLOGICAL
PARAMETERS; SURFACTANT ADDITIVES; POLYMER-SOLUTIONS; WALL TURBULENCE;
DNS
AB A previously attempted data reduction in turbulent viscoelastic channel flow [J. Non-Newton. Fluid Mech., 160 (2009) 55-63] used projections of the numerical velocity fields onto the most energetic, large scale, Karhunen-Loeve (K-L) modes of the fluctuating kinetic energy. However, the conformation field could not be adequately reproduced from the reduced velocity data when those were used in integrating the constitutive model (Giesekus) in a post-processing step. Here we investigate three different data reduction approaches in order to introduce small-scale information. Simultaneously, we also develop a novel formulation, which extends the K-L decomposition to more general objective functions. First, we use as a new objective function a weighted average of the pseudodissipation and the fluctuating kinetic energy. Second, we use the enstrophy. Third, we use the standard K-L approach, but this time in the reconstruction stage of the conformation tensor, we compensate for the loss of information of the flow deformation by suitably rescaling the Weissenberg number. It is shown that, whereas the first two methods fail to give any improvement over the classical K-L approach, the conformation field can be reconstructed fairly accurately using the third. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Samanta, Gaurab; Beris, Antony N.] Univ Delaware, Dept Chem Engn, Newark, DE 19716 USA.
[Housiadas, Kostas D.] Univ Aegean, Dept Math, Karlovassi 83200, Samos, Greece.
[Handler, Robert] USN, Res Lab, Washington, DC 20375 USA.
RP Beris, AN (reprint author), Univ Delaware, Dept Chem Engn, 150 Acad St, Newark, DE 19716 USA.
EM beris@udel.edu
FU National Center for Supercomputing Applications (NCSA) [TG-MCA96N005]
FX The authors would like to acknowledge the National Center for
Supercomputing Applications (NCSA) for providing the computational
resources needed for this work through a Teragrid supercomputing time
grant TG-MCA96N005.
NR 60
TC 2
Z9 2
U1 1
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-0257
J9 J NON-NEWTON FLUID
JI J. Non-Newton. Fluid Mech.
PD OCT
PY 2010
VL 165
IS 19-20
BP 1386
EP 1399
DI 10.1016/j.jnnfm.2010.07.003
PG 14
WC Mechanics
SC Mechanics
GA 664YG
UT WOS:000282999500030
ER
PT J
AU Kelly, JR
Rungruanganunt, P
Hunter, B
Vailati, F
AF Kelly, J. Robert
Rungruanganunt, Patchnee
Hunter, Ben
Vailati, Francesca
TI DEVELOPMENT OF A CLINICALLY VALIDATED BULK FAILURE TEST FOR CERAMIC
CROWNS
SO JOURNAL OF PROSTHETIC DENTISTRY
LA English
DT Article
ID DENTAL CERAMICS; HUMAN-ENAMEL; PORCELAIN; RESTORATIONS; RESISTANCE;
STRENGTH; FATIGUE; DAMAGE; FEA
AB Statement of problem. Traditional testing of ceramic crowns creates a stress state and damage modes that differ greatly from those seen clinically. There is a need OD develop and communicate an in vitro testing protocol that is clinically valid.
Purpose. The purpose of this study was to develop an in vitro failure test for ceramic single-unit prostheses that duplicates the failure mechanism and stress state observed in clinically failed prostheses. This article first compares characteristics of traditional load-to-failure tests of ceramic crowns with the growing body of evidence regarding failure origins and stress states at failure from the examination of clinically failed crowns, finite element analysis (FEA), and data from clinical studies. Based on this analysis, an experimental technique was systematically developed and test materials were identified to recreate key aspects of clinical failure in vitro.
Material and methods. One potential dentin analog material (an epoxy filled with woven glass fibers; NEMA grade G10) was evaluated for elastic modulus in blunt contact and for bond strength to resin cement as compared to hydrated dentin. Two bases with different elastic moduli (nickel chrome and resin-based composite) were tested for influence on failure loads. The influence of water during storage and loading (both monotonic and cyclic) was examined. Loading piston materials (G10, aluminum, stainless steel) and piston designs were varied to eliminate Hertzian cracking and to improve performance. Testing was extended from a monolayer ceramic (leucite-filled glass) to a bilayer ceramic system (glass-infiltrated alumina). The influence of cyclic rate on mean failure loads was examined (2 Hz, 10 Hz, 20 Hz) with the extremes compared statistically (t test; alpha=.05).
Results. Failure loads were highly influenced by base elastic modulus (t test; P<.001). Cyclic loading while in water significantly decreased mean failure loads (1-way ANOVA; P=.003) versus wet storage/dry cycling (350 N vs. 1270 N). G10 was not significantly different from hydrated dentin in terms of blunt contact elastic behavior or resin cement bond strength. Testing was successful with the bilayered ceramic, and the cycling rate altered mean failure loads only slightly (approximately 5%).
Conclusions. Test methods and materials were developed to validly simulate many aspects of clinical failure. (J Prosthet Dent 2010;104:228-238)
C1 [Rungruanganunt, Patchnee] Univ Connecticut, Ctr Hlth, Dept Reconstruct Dent, Div Prosthodont, Farmington, CT 06030 USA.
[Kelly, J. Robert] Univ Connecticut, Ctr Hlth, Ctr Biomat, Farmington, CT 06030 USA.
[Hunter, Ben] USN, Sch Postgrad Dent, Natl Naval Med Ctr, Bethesda, MD 20084 USA.
[Vailati, Francesca] Univ Geneva, Sch Dent Med, Dept Fixed Prosthodont & Occlus, Geneva, Switzerland.
RP Kelly, JR (reprint author), Univ Connecticut, Ctr Hlth, Dept Reconstruct Sci, 263 Farmington Ave, Farmington, CT 06030 USA.
EM Kelly@nso1.uchc.edu
NR 31
TC 46
Z9 46
U1 0
U2 6
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0022-3913
EI 1097-6841
J9 J PROSTHET DENT
JI J. Prosthet. Dent.
PD OCT
PY 2010
VL 104
IS 4
BP 228
EP 238
PG 11
WC Dentistry, Oral Surgery & Medicine
SC Dentistry, Oral Surgery & Medicine
GA 670GN
UT WOS:000283409300003
PM 20875527
ER
PT J
AU Spector, RH
AF Spector, Ronald H.
TI The spy who loved us: The Vietnam War and Pham Xuan An's dangerous game
SO JOURNAL OF SOUTHEAST ASIAN STUDIES
LA English
DT Book Review
C1 [Spector, Ronald H.] USN Acad, Annapolis, MD 21402 USA.
[Spector, Ronald H.] George Washington Univ, Washington, DC 20052 USA.
RP Spector, RH (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-4634
J9 J SOUTHEAST ASIAN ST
JI J. Southeast Asian Stud.
PD OCT
PY 2010
VL 41
IS 3
BP 553
EP 555
DI 10.1017/S0022463410000366
PG 4
WC Area Studies; Asian Studies
SC Area Studies; Asian Studies
GA 658JY
UT WOS:000282487500010
ER
PT J
AU Lewis, AC
Qidwai, SM
Geltmacher, AB
AF Lewis, Alexis C.
Qidwai, Siddiq M.
Geltmacher, Andrew B.
TI Slip Systems and Initiation of Plasticity in a Body-Centered-Cubic
Titanium Alloy
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article
ID BCC CRYSTALS; DEFORMATION; MODEL; EBSD
AB To determine statistically relevant microstructure-yield correlations in three-dimensional (3-D) microstructures, large volumes comprised of many grains must be studied. With the aim of limiting computational loads without reducing the fidelity of the volume being simulated, this work investigates the use of reduced constitutive parameters, specifically the number of available slip systems, to analyze initial plastic flow in the microstructure. This is performed by embedding a 3-D reconstruction of a single-phase beta-Ti microstructure in a finite element (FE) computational model and subjecting it to a number of loading conditions. Three separate single-crystal plasticity formulations were used for each loading: reduced 12 slip systems (aOE (c) 111 >{110} family), reduced 24 slip systems (aOE (c) 111 >{110} + aOE (c) 111 >{112} families), and full 48 slip systems (aOE (c) 111 >{110} + aOE (c) 111 >{112} + aOE (c) 111 >{123} families). The analysis results show that the 24-slip-system model accurately predicts the global stress-strain behavior and locations of initial yield under all loadings, with no more than 10 pct error in the spatial description of local state variables compared to the full 48-slip-system model. The 12-slip-system model generally follows the full model predictions and provides an even better cost improvement, but with errors in excess of 40 pct in local descriptions. Computational cost and data reduction are improved by 26 and 53 pct, respectively.
C1 [Lewis, Alexis C.; Geltmacher, Andrew B.] USN, Res Lab, Multifunct Mat Branch, Washington, DC 20375 USA.
[Qidwai, Siddiq M.] USN, Res Lab, Sci Applicat Int Corp, Washington, DC 20375 USA.
RP Lewis, AC (reprint author), USN, Res Lab, Multifunct Mat Branch, Code 6350, Washington, DC 20375 USA.
EM alexis.lewis@nrl.navy.mil
OI Qidwai, Siddiq/0000-0002-2389-118X
FU Office of Naval Research and Defense Advanced Research Projects Agency
[N0001407WX20381]
FX This research was supported by the Office of Naval Research and Defense
Advanced Research Projects Agency under Grant No. N0001407WX20381 (Dr.
Julie Christodoulou, program manager). FE simulations were performed
through the DoD High Performance Computing Modernization Program. The
authors also express their gratitude to Dr. David Rowenhorst for
providing reconstruction data and to Mr. Leroy Levenberry for
significant efforts in performing the serial sectioning and optical
microscopy for this work.
NR 17
TC 13
Z9 13
U1 1
U2 10
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD OCT
PY 2010
VL 41A
IS 10
BP 2522
EP 2531
DI 10.1007/s11661-010-0284-5
PG 10
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 643UD
UT WOS:000281323900011
ER
PT J
AU Lindeman, J
Broutman, D
Eckermann, SD
Ma, J
Boybeyi, Z
AF Lindeman, John
Broutman, Dave
Eckermann, Stephen D.
Ma, Jun
Boybeyi, Zafer
TI A coupled mesoscale-model Fourier-method for idealized mountain-wave
simulations over Hawaii
SO METEOROLOGY AND ATMOSPHERIC PHYSICS
LA English
DT Article
ID FROUDE-NUMBER FLOW; PAST 3-DIMENSIONAL OBSTACLES; TRAPPED LEE WAVES;
GRAVITY-WAVES; CLOUD BANDS; AIR-FLOW; ISLAND; DRAG; DYNAMICS; BREAKING
AB Mesoscale model simulations of representative trade winds impinging upon the Big Island of Hawaii are diagnosed for their mountain-wave characteristics by coupling a mesoscale model to a Fourier method. Localized phase-averaged wave momentum fluxes are calculated, which facilitates the study of wave generation from fine-scale topographic features. We find that the wave momentum fluxes are dominated by forcing from subsidiary topographic peaks, with the broader island topography controlling flow splitting and lee vortex generation. Waves also arise at the far northern and southern extremities of the island by acceleration of split flow. The strength of the local momentum fluxes proves to be sensitive to a small change in the incident flow direction. Areally integrated fluxes (wave drag) align closely with the incident flow direction and are an order of magnitude smaller than linear predictions and an order of magnitude larger than corresponding dividing streamline predictions. We briefly discuss the relevance of these results to the parameterization of subgrid-scale mountain-wave drag in climate and weather models.
C1 [Lindeman, John; Boybeyi, Zafer] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Broutman, Dave; Ma, Jun] Computat Phys Inc, Springfield, VA USA.
[Eckermann, Stephen D.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Lindeman, J (reprint author), George Mason Univ, Coll Sci, 4400 Univ Dr, Fairfax, VA 22030 USA.
EM jlindema@gmu.edu
FU National Science Foundation [ATM-0448888, ATM-0435789]; NASA GMAP
[NNG06HM19I]; Office of Naval Research
FX We thank the reviewers for helpful comments. This work was supported by
the National Science Foundation through grants ATM-0448888 (JL) and
ATM-0435789 (DB), by NASA GMAP contract NNG06HM19I (SDE, JM, DB), and by
the Office of Naval Research through the NRL base 6.1 research program
(SDE).
NR 29
TC 1
Z9 1
U1 0
U2 3
PU SPRINGER WIEN
PI WIEN
PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA
SN 0177-7971
J9 METEOROL ATMOS PHYS
JI Meteorol. Atmos. Phys.
PD OCT
PY 2010
VL 108
IS 3-4
BP 71
EP 81
DI 10.1007/s00703-010-0085-9
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 666MK
UT WOS:000283119300001
ER
PT J
AU Sastalla, I
Maltese, LM
Pomerantseva, OM
Pomerantsev, AP
Keane-Myers, A
Leppla, SH
AF Sastalla, Inka
Maltese, Lauren M.
Pomerantseva, Olga M.
Pomerantsev, Andrei P.
Keane-Myers, Andrea
Leppla, Stephen H.
TI Activation of the latent PlcR regulon in Bacillus anthracis
SO MICROBIOLOGY-SGM
LA English
DT Article
ID CHOLESTEROL-DEPENDENT CYTOLYSIN; PHOSPHOLIPASE-C; ANTHROLYSIN-O; CEREUS
GROUP; NONHEMOLYTIC ENTEROTOXIN; GENOME SEQUENCE; THURINGIENSIS;
VIRULENCE; IDENTIFICATION; EXPRESSION
AB Many genes in Bacillus cereus and Bacillus thuringiensis are under the control of the transcriptional regulator PlcR and its regulatory peptide, PapR. In Bacillus anthracis, the causative agent of anthrax, PlcR is inactivated by truncation, and consequently genes having PlcR binding sites are expressed at very low levels when compared with B. cereus. We found that activation of the PlcR regulon in B. anthracis by expression of a PlcR-PapR fusion protein does not alter sporulation in strains containing the virulence plasmid pXO1 and thereby the global regulator AtxA. Using comparative 2D gel electrophoresis, we showed that activation of the PlcR regulon in B. anthracis leads to upregulation of many proteins found in the secretome of B. cereus, including phospholipases and proteases, such as the putative protease BA1995. Transcriptional analysis demonstrated expression of BA1995 to be dependent on PlcR-PapR, even though the putative PlcR recognition site of the BA1995 gene does not exactly match the PlcR consensus sequence, explaining why this protein had escaped recognition as belonging to the PlcR regulon. Additionally, while transcription of major PlcR-dependent haemolysins, sphingomyelinase and anthrolysin O is enhanced in response to PlcR activation in B. anthracis, only anthrolysin O contributes significantly to lysis of human erythrocytes. In contrast, the toxicity of bacterial culture supernatants from a PlcR-positive strain towards murine macrophages occurred independently of anthrolysin O expression in vitro and in vivo.
C1 [Sastalla, Inka; Maltese, Lauren M.; Pomerantsev, Andrei P.; Leppla, Stephen H.] NIAID, Lab Bacterial Dis, NIH, Bethesda, MD 20892 USA.
[Pomerantseva, Olga M.; Keane-Myers, Andrea] USN, Biol Def Res Directorate, Res Ctr, Rockville, MD USA.
RP Leppla, SH (reprint author), NIAID, Lab Bacterial Dis, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA.
EM sleppla@niaid.nih.gov
FU National Institutes of Health (NIH), National Institute of Allergy and
Infectious Diseases (NIAID), Bethesda, MD, USA
FX This work was supported by the Intramural Research Program of the
National Institutes of Health (NIH), National Institute of Allergy and
Infectious Diseases (NIAID), Bethesda, MD, USA. We thank Zachary Newman
for supplying BMDM cells, Devorah Crown for assistance with animal
experiments, the NIAID RTB for performing 2D SDS-PAGE and MS, and Dr
Clinton Leysath for assistance with flow cytometry. The views expressed
in this article are those of the authors and do not necessarily reflect
the official policy or position of the Department of the Navy,
Department of Defense, nor the US Government.
NR 46
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U1 0
U2 4
PU SOC GENERAL MICROBIOLOGY
PI READING
PA MARLBOROUGH HOUSE, BASINGSTOKE RD, SPENCERS WOODS, READING RG7 1AG,
BERKS, ENGLAND
SN 1350-0872
J9 MICROBIOL-SGM
JI Microbiology-(UK)
PD OCT
PY 2010
VL 156
BP 2982
EP 2993
DI 10.1099/mic.0.041418-0
PN 10
PG 12
WC Microbiology
SC Microbiology
GA 670UZ
UT WOS:000283454100010
PM 20688829
ER
PT J
AU McLay, RN
Klam, WP
Volkert, SL
AF McLay, Robert N.
Klam, Warren P.
Volkert, Stacy L.
TI Insomnia Is the Most Commonly Reported Symptom and Predicts Other
Symptoms of Post-Traumatic Stress Disorder in U.S. Service Members
Returning From Military Deployments
SO MILITARY MEDICINE
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; IRAQ; AFGHANISTAN; TRAUMA; CARE
AB This study retrospectively reviewed records from current members of the U.S. military who had completed the PTSD Checklist (PCL) at 0 and 3-months after returning from deployments. Insomnia was the most commonly reported symptom of PTSD on the PCL and had the highest average severity scores. At initial screen, 41% of those who had been to Iraq or Afghanistan reported sleep problems. Those who had initially reported any insomnia had significantly higher overall scores for PTSD severity at follow-up than did service members without such a complaint. These results show that insomnia is a particularly frequent, severe, and persistent complaint in service members returning from deployment. Such complaints merit particular attention in relation to the possibility of PTSD.
C1 [McLay, Robert N.; Klam, Warren P.; Volkert, Stacy L.] USN, San Diego Med Ctr, Dept Mental Hlth, San Diego, CA 92134 USA.
RP McLay, RN (reprint author), USN, San Diego Med Ctr, Dept Mental Hlth, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 15
TC 56
Z9 56
U1 0
U2 7
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD OCT
PY 2010
VL 175
IS 10
BP 759
EP 762
PG 4
WC Medicine, General & Internal
SC General & Internal Medicine
GA 658CX
UT WOS:000282468500011
PM 20968266
ER
PT J
AU Shen, YC
Arkes, J
Kwan, BW
Tan, LY
Williams, TV
AF Shen, Yu-Chu
Arkes, Jeremy
Kwan, Boon Wah
Tan, Lai Yee
Williams, Thomas V.
TI Effects of Iraq/Afghanistan Deployments on PTSD Diagnoses for Still
Active Personnel in All Four Services
SO MILITARY MEDICINE
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; MENTAL-HEALTH PROBLEMS; GULF-WAR
VETERANS; PRIMARY-CARE; IRAQ; AFGHANISTAN; POPULATION; OUTCOMES; ILLNESS
AB We estimate the effect of deployment location and length on risk of developing post-traumatic stress disorder (PTSD). We draw a random sample of active duty enlisted personnel serving between 2001 and 2006 from a TRICARE beneficiary database and link deployment characteristics from the contingency tracking system. Using logistic regressions, we found that deployment to Iraq/Afghanistan increases the odds of developing PTSD substantially, relative to those in other duties, with the largest effect observed for the Navy (OR = 9.06, p < 0.01) and the smallest effect for the Air Force (OR = 1.25, p < 0.01). A deployment longer than 180 days increases the odds of PTSD by 1.11 to 2.84 times compared to a short tour. For Army and Navy, a deployment to Iraq/Afghanistan further exacerbates the adverse effect of tour length.
C1 [Shen, Yu-Chu; Arkes, Jeremy; Kwan, Boon Wah; Tan, Lai Yee] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Shen, Yu-Chu] Natl Bur Econ Res, Cambridge, MA 02138 USA.
[Arkes, Jeremy] Rand Corp, Santa Monica, CA 90401 USA.
[Williams, Thomas V.] TRICARE Management Act, Falls Church, VA 22041 USA.
RP Shen, YC (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd,Code GB, Monterey, CA 93943 USA.
FU Graduate School of Business and Public Policy; NI Manpower, Personnel,
Traning Education
FX We thank Dennis Mar, Wendy Funk, and the staff at Defense Manpower Data
Center and TRICARE Management Activity for assisting with data
extraction. Y.S. and J.A. thank the Graduate School of Business and
Public Policy Direct Funded Research Program and NI Manpower, Personnel,
Traning & Education for financial support.
NR 24
TC 11
Z9 11
U1 0
U2 4
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD OCT
PY 2010
VL 175
IS 10
BP 763
EP 769
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA 658CX
UT WOS:000282468500012
PM 20968267
ER
PT J
AU Van Thiel, GS
Romeo, AA
Provencher, MT
AF Van Thiel, G. S.
Romeo, A. A.
Provencher, M. T.
TI Arthroscopic treatment of antero-inferior shoulder instability
SO MINERVA ORTOPEDICA E TRAUMATOLOGICA
LA English
DT Article
DE Shoulder joint; Arthroscopy; Joint instability
ID GLENOID BONE LOSS; GLENOHUMERAL LIGAMENT COMPLEX; ROTATOR INTERVAL
CLOSURE; HILL-SACHS LESION; EXTERNAL ROTATION; BANKART REPAIR;
NONOPERATIVE TREATMENT; ANTEROSUPERIOR ASPECT; ANATOMICAL VARIANTS;
DISLOCATION
AB The treatment of anterior shoulder instability continues to evolve. Advancements in arthroscopic techniques have led to a recent shift to arthroscopic Bankart repair. This has been coupled with a development of new instrumentation, implants, and techniques. However, to obtain a successful outcome for patients with anterior instability, it is imperative that the surgeon be aware of preoperative, intraoperative, and postoperative factors associated with the recognition and proper treatment of instability pathology. In this chapter, we will present several important techniques, pathologies, and concepts regarding the effective diagnosis and treatment of patients with anterior instability using arthroscopic techniques.
C1 [Provencher, M. T.] USN, San Diego Med Ctr, San Diego, CA 92134 USA.
[Romeo, A. A.] Rush Univ, Med Ctr, Sect Shoulder & Elbow, Chicago, IL 60612 USA.
RP Provencher, MT (reprint author), USN, San Diego Med Ctr, 34800 Boh Wilson Dr 112, San Diego, CA 92134 USA.
EM matthew.provencher@med.navy.mil
OI Romeo, Anthony/0000-0003-4848-3411
NR 59
TC 0
Z9 0
U1 0
U2 0
PU EDIZIONI MINERVA MEDICA
PI TURIN
PA CORSO BRAMANTE 83-85 INT JOURNALS DEPT., 10126 TURIN, ITALY
SN 0026-4911
J9 MINERVA ORTOP TRAUMA
JI Minerva Ortop. Traumatol.
PD OCT
PY 2010
VL 61
IS 5
BP 393
EP 414
PG 22
WC Orthopedics
SC Orthopedics
GA 658BZ
UT WOS:000282465300004
ER
PT J
AU Friedman, AL
Tedesco, JL
Campbell, PM
Culbertson, JC
Aifer, E
Perkins, FK
Myers-Ward, RL
Hite, JK
Eddy, CR
Jernigan, GG
Gaskill, DK
AF Friedman, Adam L.
Tedesco, Joseph L.
Campbell, Paul M.
Culbertson, James C.
Aifer, Edward
Perkins, F. Keith
Myers-Ward, Rachael L.
Hite, Jennifer K.
Eddy, Charles R., Jr.
Jernigan, Glenn G.
Gaskill, D. Kurt
TI Quantum Linear Magnetoresistance in Multi layer Epitaxial Graphene
SO NANO LETTERS
LA English
DT Article
DE Graphene; epitaxial graphene; magnetoresistance; transport; gapless
semiconductor; disordered systems
ID GRAPHITE
AB We report the first observation of linear magnetoresistance (LMR) in multilayer epitaxial graphene grown on SIC We show that multilayer epitaxial graphene exhibits large LMR from 2 2 K up to room temperature and that it can be best explained by a purely quantum mechanical model We attribute the observation of LMR to inhomogeneities in the epitaxially grown graphene Film The large magnitude of the LMR suggests potential for novel applications in areas such as high-density data storage and magnetic sensors and actuators
C1 [Friedman, Adam L.; Tedesco, Joseph L.; Campbell, Paul M.; Culbertson, James C.; Aifer, Edward; Perkins, F. Keith; Myers-Ward, Rachael L.; Hite, Jennifer K.; Eddy, Charles R., Jr.; Jernigan, Glenn G.; Gaskill, D. Kurt] USN, Res Lab, Washington, DC 20375 USA.
RP Friedman, AL (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Friedman, Adam/D-9610-2011; li, yuan/B-4627-2011; Hite,
Jennifer/L-5637-2015
OI Friedman, Adam/0000-0003-0597-5432; Hite, Jennifer/0000-0002-4090-0826
FU U S Naval Research Laboratory
FX The authors would like to thank Professor D Heiman for helpful
discussions Work at the U S Naval Research Laboratory is support by the
Office of Naval Research J K H and J L T acknowledge the support or the
American Society for Engineering Education/Naval Research Laboratory
Postdoctoral Fellow Program A L F also acknowledges support from the
National Research Council
NR 29
TC 99
Z9 99
U1 7
U2 72
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD OCT
PY 2010
VL 10
IS 10
BP 3962
EP 3965
DI 10.1021/nl101797d
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 661KQ
UT WOS:000282727600027
PM 20804213
ER
PT J
AU Matovina, M
Seah, N
Hamilton, T
Warren, D
Landy, A
AF Matovina, Mihaela
Seah, Nicole
Hamilton, Theron
Warren, David
Landy, Arthur
TI Stoichiometric incorporation of base substitutions at specific sites in
supercoiled DNA and supercoiled recombination intermediates
SO NUCLEIC ACIDS RESEARCH
LA English
DT Article
ID BACTERIOPHAGE-LAMBDA; NUCLEAR-LOCALIZATION; GENE DELIVERY; PLASMID DNA;
ATT-SITE; INTEGRASE; VECTORS; EXCISION; PROTEIN; INT
AB Supercoiled DNA is the relevant substrate for a large number of DNA transactions and has additionally been found to be a favorable form for delivering DNA and protein-DNA complexes to cells. We report here a facile method for stoichiometrically incorporating several different modifications at multiple, specific, and widely spaced sites in supercoiled DNA. The method is based upon generating an appropriately gapped circular DNA, starting from single-strand circular DNA from two phagemids with oppositely oriented origins of replication. The gapped circular DNA is annealed with labeled and unlabeled synthetic oligonucleotides to make a multiply nicked circle, which is covalently sealed and supercoiled. The method is efficient, robust and can be readily scaled up to produce large quantities of labeled supercoiled DNA for biochemical and structural studies. We have applied this method to generate dye-labeled supercoiled DNA with heteroduplex bubbles for a Forster resonance energy transfer (FRET) analysis of supercoiled Holliday junction intermediates in the lambda integrative recombination reaction. We found that a higher-order structure revealed by FRET in the supercoiled Holliday junction intermediate is preserved in the linear recombination product. We suggest that in addition to studies on recombination complexes, these methods will be generally useful in other reactions and systems involving supercoiled DNA.
C1 [Seah, Nicole; Warren, David; Landy, Arthur] Brown Univ, Div Biol & Med, Providence, RI 02912 USA.
[Matovina, Mihaela] Rudjer Boskovic Inst, Dept Mol Med, Lab Mol Virol & Bacteriol, Zagreb, Croatia.
[Hamilton, Theron] USN, Drug Screening Lab, San Diego, CA 92134 USA.
RP Landy, A (reprint author), Brown Univ, Div Biol & Med, Providence, RI 02912 USA.
EM Arthur_Landy@brown.edu
RI Matovina, Mihaela/J-3834-2012
FU National Institutes of Health [GM33928, GM62723]
FX Funding for open access charge: The National Institutes of Health (grant
numbers GM33928 and GM62723 to A.L.).
NR 44
TC 6
Z9 6
U1 0
U2 3
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0305-1048
J9 NUCLEIC ACIDS RES
JI Nucleic Acids Res.
PD OCT
PY 2010
VL 38
IS 18
AR e175
DI 10.1093/nar/gkq674
PG 13
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 666LL
UT WOS:000283116600003
PM 20693535
ER
PT J
AU Gottshall, KR
Topp, SG
Hoffer, ME
AF Gottshall, Kim R.
Topp, Shelby G.
Hoffer, Michael E.
TI Early Vestibular Physical Therapy Rehabilitation for Meniere's Disease
SO OTOLARYNGOLOGIC CLINICS OF NORTH AMERICA
LA English
DT Article
DE Meniere's disease; Vestibular rehabilitation; Vestibular therapy;
Vestibular physical therapy
AB Meniere's disease includes symptoms of fluctuating hearing loss, tinnitus, and subjective ear fullness accompanied by episodic vertigo. Along with these symptoms, patients with chronic Meniere's often develop symptoms of disequilibrium and unsteadiness that extend beyond the episodic attacks and contribute to the total disability and reduced quality of life attributed to the disease. Vestibular rehabilitation physical therapy has been used only after vestibular ablation has stabilized the vestibular loss, and for patients stably managed on medical therapy who exhibit no fluctuation in symptoms This article reviews the data substantiating current applications of vestibular therapy, including improvements in subjective and objective balance outcome measures, and explores the possible extension of vestibular rehabilitation to treatment of patients exhibiting continued fluctuating vestibular loss
C1 [Gottshall, Kim R.; Hoffer, Michael E.] USN, Dept Otolaryngol, San Diego Med Ctr, Spatial Orientat Ctr, San Diego, CA 92134 USA.
RP Hoffer, ME (reprint author), USN, Dept Otolaryngol, San Diego Med Ctr, Spatial Orientat Ctr, 34520 Bob Wilson Dr,Suite 200, San Diego, CA 92134 USA.
NR 17
TC 5
Z9 5
U1 3
U2 17
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0030-6665
J9 OTOLARYNG CLIN N AM
JI Otolaryngol. Clin. N. Am.
PD OCT
PY 2010
VL 43
IS 5
BP 1113
EP +
DI 10.1016/j.otc.2010.05.006
PG 8
WC Otorhinolaryngology
SC Otorhinolaryngology
GA 646UX
UT WOS:000281569700014
PM 20713248
ER
PT J
AU Lindsay, R
Stancil, J
Ray, JM
AF Lindsay, Robin
Stancil, Jeffrey
Ray, J. Michael
TI Myiasis of facial wounds by Cochliomyia hominivorax sustained in a
natural disaster in Haiti
SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY
LA English
DT Editorial Material
ID ORBITAL MYIASIS; IVERMECTIN
C1 [Lindsay, Robin] Natl Naval Med Ctr, Dept Otolaryngol Head & Neck Surg, Bethesda, MD 20889 USA.
[Lindsay, Robin] Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
[Ray, J. Michael] Natl Naval Med Ctr, Dept Oral Maxillofacial Surg, Bethesda, MD 20889 USA.
[Stancil, Jeffrey] USN, Entomol Ctr Excellence, Jacksonville, FL USA.
RP Lindsay, R (reprint author), Natl Naval Med Ctr, Dept Otolaryngol Head & Neck Surg, 8901 Wisconsin Ave, Bethesda, MD 20889 USA.
EM Robin_lindsay@meei.harvard.edu
NR 5
TC 4
Z9 4
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0194-5998
J9 OTOLARYNG HEAD NECK
JI Otolaryngol. Head Neck Surg.
PD OCT
PY 2010
VL 143
IS 4
BP 595
EP 596
DI 10.1016/j.otohns.2010.04.273
PG 2
WC Otorhinolaryngology; Surgery
SC Otorhinolaryngology; Surgery
GA 656BW
UT WOS:000282301800023
PM 20869575
ER
PT J
AU Murrell, GL
AF Murrell, George L.
TI Trench mouth
SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY
LA English
DT Editorial Material
C1 [Murrell, George L.] USN Hosp, Dept Otolaryngol Head & Neck Surg, Camp Pendleton, CA 92055 USA.
[Murrell, George L.] Uniformed Serv Univ Hlth Sci, Dept Otolaryngol Head & Neck Surg, Bethesda, MD 20814 USA.
[Murrell, George L.] George Washington Univ, Dept Hlth Care Sci, Sch Hlth Sci, Washington, DC 20037 USA.
RP Murrell, GL (reprint author), USN Hosp, Dept Otolaryngol Head & Neck Surg, POB 555191, Camp Pendleton, CA 92055 USA.
EM george.murrell@med.navy.mil
NR 3
TC 2
Z9 2
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0194-5998
J9 OTOLARYNG HEAD NECK
JI Otolaryngol. Head Neck Surg.
PD OCT
PY 2010
VL 143
IS 4
BP 599
EP 600
DI 10.1016/j.otohns.2010.06.923
PG 2
WC Otorhinolaryngology; Surgery
SC Otorhinolaryngology; Surgery
GA 656BW
UT WOS:000282301800025
PM 20869577
ER
PT J
AU Gabbert, C
Donohue, M
Arnold, J
Schwimmer, JB
AF Gabbert, Charles
Donohue, Michael
Arnold, John
Schwimmer, Jeffrey B.
TI Adenovirus 36 and Obesity in Children and Adolescents
SO PEDIATRICS
LA English
DT Article
DE obesity; BMI; weight; waist circumference
ID GLUCOSE-UPTAKE; BODY-WEIGHT; CELLS; ADIPOSITY; GENE; DIFFERENTIATION;
STIGMATIZATION; PREVALENCE; OVERWEIGHT; INFECTION
AB OBJECTIVE: The primary aim of this study was to assess the relationship between adenovirus 36 (AD36)-specific antibodies and obesity in children.
METHODS: A cross-sectional study of children 8 to 18 years of age was performed. Children were classified according to BMI percentile as nonobese (<95th percentile) or obese (>= 95th percentile). The presence of AD36-specific neutralizing antibodies was assessed by using the serum neutralization assay.
RESULTS: A total of 124 children (median age: 13.6 years) were studied. Of those children, 46% were nonobese and 54% were obese. AD36 positivity was present in 19 children (15%). The majority of children found to be AD36-positive were obese (15 [78%] of 19 children). AD36 positivity was significantly (P < .05) more frequent in obese children (15 [22%] of 67 children) than nonobese children (4 [7%] of 57 children). Among the subset of children who were obese, those who were AD36-positive had significantly larger anthropometric measures, including weight, BMI, waist circumference, and waist/height ratio.
CONCLUSION: These data support an association of obesity and higher body weight with the presence of neutralizing antibodies to AD36 in children. If a cause-and-effect relationship is established, it would have considerable implications for the prevention and treatment of childhood obesity. Pediatrics 2010;126:721-726
C1 [Gabbert, Charles; Schwimmer, Jeffrey B.] Univ Calif San Diego, Sch Med, Dept Pediat, La Jolla, CA 92093 USA.
[Gabbert, Charles] Univ Calif San Diego, Sch Med, Dept Med, La Jolla, CA 92093 USA.
[Schwimmer, Jeffrey B.] Univ Calif San Diego, Sch Med, Dept Family & Prevent Med, La Jolla, CA 92093 USA.
[Arnold, John] USN, Med Ctr, Dept Pediat, San Diego, CA 92152 USA.
[Donohue, Michael] Rady Childrens Hosp San Diego, Dept Gastroenterol, San Diego, CA USA.
RP Schwimmer, JB (reprint author), Univ Calif San Diego, Dept Pediat, Div Gastroenterol Hepatol & Nutr, 200 W Arbor Dr, San Diego, CA 92103 USA.
EM jschwimmer@ucsd.edu
FU National Institutes of Health (NIH) [R21 DK71486]; Rest Haven
Foundation; National Institute of Diabetes and Digestive and Kidney
Diseases; San Diego EXPORT Center [P60 MD00220]
FX Funded by the National Institutes of Health (NIH).; This study was
supported in part by grants from the Rest Haven Foundation and the
National Institutes of Health, including grant R21 DK71486 from the
National Institute of Diabetes and Digestive and Kidney Diseases, grant
P60 MD00220 from the National Center of Minority Health and Health
Disparities for the San Diego EXPORT Center, grant M01 RR000827 from the
National Center for Research Resources for the General Clinical Research
Center at the University of California, San Diego, and grant DK080506
from the University of California, San Diego, Digestive Diseases
Research Development Center. The funders did not participate in the
design and conduct of the study; the collection, management, analysis,
and interpretation of the data; or the preparation, review, and approval
of the manuscript.
NR 26
TC 49
Z9 53
U1 1
U2 4
PU AMER ACAD PEDIATRICS
PI ELK GROVE VILLAGE
PA 141 NORTH-WEST POINT BLVD,, ELK GROVE VILLAGE, IL 60007-1098 USA
SN 0031-4005
J9 PEDIATRICS
JI Pediatrics
PD OCT
PY 2010
VL 126
IS 4
BP 721
EP 726
DI 10.1542/peds.2009-3362
PG 6
WC Pediatrics
SC Pediatrics
GA 658WW
UT WOS:000282526100043
PM 20855385
ER
PT J
AU Gray, T
Brown, MR
Cothran, CD
Lukin, VS
AF Gray, T.
Brown, M. R.
Cothran, C. D.
Lukin, V. S.
TI Three-dimensional reconnection and relaxation of merging spheromak
plasmas
SO PHYSICS OF PLASMAS
LA English
DT Article
ID MAGNETIC RECONNECTION; TILTING INSTABILITY; FIELDS
AB Plasma relaxation inside a highly conducting cylindrical boundary is studied both experimentally and computationally. Dynamics are initiated by the introduction of two equal helicity spheromaks at either end of the cylinder. In the experiment, dense, high-magnetic-flux spheromaks are injected into the flux conserving volume with magnetized plasma guns. In the simulation, identical spheromaks initially occupy both halves of the cylinder and a perturbation is introduced. Merging commences with a single three-dimensional null-point that moves radially out of the flux conserving volume at velocities up to 0.2 of the reconnection outflow velocity. Relaxation to the minimum energy state occurs in about ten Alfven times. An important conclusion is that even though the dynamical activity is limited to a few modes, this activity is sufficient to promote relaxation to the final, minimum energy state. The dynamical activity appears to conserve magnetic helicity while magnetic energy is converted to flow and heat. The final state arrived at dynamically is identical to that described by C. D. Cothran et al. [Phys. Rev. Lett. 103, 215002 (2009)] using static, eigenvalue analysis. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3492726]
C1 [Gray, T.; Brown, M. R.; Cothran, C. D.] Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 USA.
[Lukin, V. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Gray, T (reprint author), Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 USA.
EM tgray1@swarthmore.edu
FU Department of Energy; National Science Foundation
FX This work was supported by the Department of Energy and the National
Science Foundation. We gratefully acknowledge the contributions of A. H.
Glasser and W. Lowrie to the development of the HiFi code. We also thank
M. G. Linton, M. J. Schaffer, E. V. Belova, and C. E. Myers for helpful
discussions.
NR 25
TC 20
Z9 20
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 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD OCT
PY 2010
VL 17
IS 10
AR 102106
DI 10.1063/1.3492726
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 674TG
UT WOS:000283772200007
ER
PT J
AU Petrov, GM
Willingale, L
Davis, J
Petrova, T
Maksimchuk, A
Krushelnick, K
AF Petrov, G. M.
Willingale, L.
Davis, J.
Petrova, Tz.
Maksimchuk, A.
Krushelnick, K.
TI The impact of contaminants on laser-driven light ion acceleration
SO PHYSICS OF PLASMAS
LA English
DT Article
ID HIGH-INTENSITY LASER; PLASMA INTERACTIONS; PROTON-BEAMS; TARGET
INTERACTIONS; FAST IGNITION; GENERATION; IRRADIATION; SOLIDS
AB The impact of contaminants on laser-driven ion acceleration is investigated using particle-in-cell simulations. The conventional ion acceleration mechanism, target normal sheath acceleration, has been revisited for targets with proton-rich contaminants in the form of water vapor. The targets considered have a deuterated plastic layer on the rear surface of an aluminum target, and the influence of the contaminant layer on the deuteron acceleration is investigated. In the early stage of ion acceleration, the space-charge electrostatic field on the rear target surface accelerates only the outermost, proton-rich layer of ions, which inhibits the deuteron acceleration by shielding it from the field. When the proton layer is depleted, the deuterons become exposed to the space-charge field and are promptly accelerated. This scenario was tested with a two-dimensional particle-in-cell simulation model by varying the contaminant layer thickness and laser fluence (laser energy per unit area). For laser fluences F(laser) < 1 J/mu m(2), the contamination layer over the surface inhibits the deuteron acceleration from the rear surface, while in the opposite case of laser fluences F(laser) > 1 J/mu m(2) deuterons and heavier ions can be successfully accelerated with conversion efficiency of laser energy into ions of more than 1%. Experimental data from a 6 mu m thick aluminum foil coated with a 1 mu m deuterated plastic layer on the back surface are suggestive of the detrimental role of contaminants on deuteron acceleration. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3497002]
C1 [Petrov, G. M.; Davis, J.; Petrova, Tz.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Willingale, L.; Maksimchuk, A.; Krushelnick, K.] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
RP Petrov, GM (reprint author), USN, Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM george.petrov@nrl.navy.mil
FU Defense Threat Reduction Agency (DTRA); DoE/NNSA
FX This work was supported by the Defense Threat Reduction Agency (DTRA)
and the DoE/NNSA.
NR 44
TC 18
Z9 18
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 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD OCT
PY 2010
VL 17
IS 10
AR 103111
DI 10.1063/1.3497002
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 674TG
UT WOS:000283772200065
ER
PT J
AU Pettit, CL
Wilson, DK
AF Pettit, Chris L.
Wilson, D. Keith
TI Full-field sensitivity analysis through dimension reduction and
probabilistic surrogate models
SO PROBABILISTIC ENGINEERING MECHANICS
LA English
DT Article
DE Sensitivity analysis; Surrogate model; Bayesian
ID PROPER ORTHOGONAL DECOMPOSITION; SOUND-PROPAGATION; UNCERTAINTY;
TUTORIAL
AB Computational mechanics models often are compromised by uncertainty in their governing parameters, especially when the operating environment is incompletely known. Computational sensitivity analysis of a spatially distributed process to its governing parameters therefore is an essential, but often costly, step in uncertainty quantification. A sensitivity analysis method is described which features probabilistic surrogate models developed through equitable sampling of the parameter space, proper orthogonal decomposition (POD) for compact representations of the process' variability from an ensemble of realizations, and cluster-weighted models of the joint probability density function of each POD coefficient and the governing parameters. Full-field sensitivities, i.e. sensitivities at every point in the computational grid, are computed by analytically differentiating the conditional expected value function of each POD coefficient and projecting the sensitivities onto the POD basis. Statistics of the full-field sensitivities are estimated by sampling the surrogate model throughout the parameter space. Major benefits of this method are: (1) the sensitivities are computed analytically and efficiently from regularized surrogate models, and (2) the conditional variances of the surrogate models may be used to estimate the statistical uncertainty in the sensitivities, which provides a basis for pursuing more data to improve the model. Synthetic examples and a physical example involving near-ground sound propagation through a refracting atmosphere are presented to illustrate the properties of the surrogate models and how full-field sensitivities and their uncertainties are computed. Published by Elsevier Ltd
C1 [Pettit, Chris L.] USN Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
[Wilson, D. Keith] USA, Cold Reg Res & Engn Lab, Signature Phys Branch, Hanover, NH 03755 USA.
RP Pettit, CL (reprint author), USN Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
EM pettitcl@usna.edu
RI Wilson, D. Keith/A-4687-2012
OI Wilson, D. Keith/0000-0002-8020-6871
FU U.S. Army Engineer Research and Development Center
FX This research was supported by the U.S. Army Engineer Research and
Development Center's Geospatial Research and Engineering basic research
program. The authors would like to thank Dr. S. Vecherin for his
insightful comments on an early draft of the article.
NR 38
TC 1
Z9 2
U1 0
U2 4
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0266-8920
EI 1878-4275
J9 PROBABILIST ENG MECH
JI Probab. Eng. Eng. Mech.
PD OCT
PY 2010
VL 25
IS 4
BP 380
EP 392
DI 10.1016/j.probengmech.2010.04.005
PG 13
WC Engineering, Mechanical; Mechanics; Statistics & Probability
SC Engineering; Mechanics; Mathematics
GA 631XX
UT WOS:000280385100004
ER
PT J
AU Smith, RK
Montgomery, MT
AF Smith, Roger K.
Montgomery, Michael T.
TI Hurricane boundary-layer theory
SO QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
LA English
DT Article
DE tropical cyclone; friction layer; agradient flow
ID TROPICAL CYCLONE CORE; MODEL; INTENSITY; DYNAMICS; JETS
AB In the light of the plethora of definitions for the hurricane boundary layer, we advocate a dynamical definition based on the distribution of agradient flow. We seek also to clarify the fundamental role of the boundary layer in the hurricane intensification process. In particular, we contrast the differences between unsteady boundary layers that are able to facilitate the spin-up of the vortex above and steady boundary layers that cannot. If slaved to the time-dependent vortex aloft, the latter can spin up the interior vortex only indirectly by changing its thermodynamic properties through vertical advection of these from below and adjustment to thermal wind balance. These differences are highlighted by an analytical demonstration that the application of a zero-vertical-gradient condition on velocity above a steady boundary layer does not provide a direct means of allowing the boundary layer to determine the flow in the interior vortex. This result assumes that frictional forces are negligible at this boundary. Finally, echoing a few previous insights, we question the applicability of conventional boundary-layer theory at radii of strong ascent into the eyewall, where the flow is akin to that of separation in aerodynamic boundary layers. Copyright (C) 2010 RoyalMeteorological Society
C1 [Smith, Roger K.] Univ Munich, Inst Meteorol, D-80333 Munich, Germany.
[Montgomery, Michael T.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
[Montgomery, Michael T.] NOAA, Hurricane Res Div, Miami, FL USA.
RP Smith, RK (reprint author), Univ Munich, Inst Meteorol, Theresienstr 37, D-80333 Munich, Germany.
EM roger.smith@lmu.de
FU US Office of Naval Research [N00014-03-1-0185]; US Naval Postgraduate
School, NOAA's Hurricane Research Division; NSF [ATM-0649944,
ATM-0649946, ATM-0715426]; German Research Council (Deutsche
Forschungsgemeinschaft)
FX This paper was written during the authors' recent visit to the US
Hurricane Research Division of NOAA/AOML. We thank especially the
Director, Frank Marks, and his staff for their generous hospitality and
for creating a stimulating environment for pursuing hurricane research.
MTM acknowledges the support of grant No. N00014-03-1-0185 from the US
Office of Naval Research and from the US Naval Postgraduate School,
NOAA's Hurricane Research Division, and NSF ATM-0649944, ATM-0649946 and
ATM-0715426. RKS acknowledges financial support for hurricane research
from the German Research Council (Deutsche Forschungsgemeinschaft).
NR 31
TC 50
Z9 52
U1 1
U2 6
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 0035-9009
J9 Q J ROY METEOR SOC
JI Q. J. R. Meteorol. Soc.
PD OCT
PY 2010
VL 136
IS 652
BP 1665
EP 1670
DI 10.1002/qj.679
PN A
PG 6
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 678AP
UT WOS:000284039900002
ER
PT J
AU Montgomery, MT
Smith, RK
Nguyen, SV
AF Montgomery, Michael T.
Smith, Roger K.
Nguyen, Sang V.
TI Sensitivity of tropical-cyclone models to the surface drag coefficient
SO QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
LA English
DT Article
DE hurricane; typhoon; surface exchange; frictional drag
ID HURRICANE BOUNDARY-LAYER; SEA INTERACTION THEORY; PART I; MAXIMUM
INTENSITY; TURBULENT FLUXES; WIND STRUCTURE; DYNAMICS; SIMULATION;
EXCHANGE; CORE
AB Motivated by recent developments in tropical-cyclone dynamics, this paper re-examines a basic aspect of tropical-cyclone behaviour, namely, the sensitivity of tropical-cyclone models to the surface drag coefficient. Previous theoretical and numerical studies of the sensitivity in axisymmetric models have found that the intensity decreases markedly with increasing drag coefficient. Here we present a series of three-dimensional convection-permitting numerical experiments in which the intensification rate and intensity of the vortex increase with increasing surface drag coefficient until a certain threshold value is attained and then decrease. In particular, tropical depression-strength vortices intensify to major hurricane intensity for values of CK/CD as small as 0.1, significantly smaller than the critical threshold value of about 0.75 for major hurricane development predicted by Emanuel using an axisymmetric balance model. Moreover, when the drag coefficient is set to zero, no system-scale intensification occurs, despite persistent sea-to-air fluxes of moisture that maintain deep convective activity. This result is opposite to that found in a prior axisymmetric study by Craig and Gray.
The findings are interpreted using recent insights obtained on tropical-cyclone intensification, which highlight the intrinsically unbalanced dynamics of the tropical-cyclone boundary layer. The reasons for the differences from earlier axisymmetric studies and some potential ramifications of our findings are discussed.
The relative insensitivity of the intensification rate and intensity found for drag coefficients typical of high wind speeds over the ocean calls into question the need for coupled ocean wave-atmospheric models to accurately forecast tropical-cyclone intensity. Copyright (C) c 2010 RoyalMeteorological Society
C1 [Montgomery, Michael T.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Montgomery, Michael T.] NOAA, Hurricane Res Div, Miami, FL USA.
[Smith, Roger K.; Nguyen, Sang V.] Univ Munich, Inst Meteorol, D-80539 Munich, Germany.
RP Montgomery, MT (reprint author), USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
EM mtmontgo@nps.edu
FU ONR at the US Naval Postgraduate School (NPS) [TCS08]; US Office of
Naval Research, NOAA's Hurricane Research Division [N00014-03-1-0185];
US National Science Foundation [ATM-0649946, ATM-0715426]; German
Research Council (Deutsche Forschungsgemeinschaft)
FX A first draft of this paper was written during the week of the
ONR-sponsored TCS08 workshop held at the US Naval Postgraduate School
(NPS) in October 2009. The authors wish to thank Scott Braun for his
constructive review of this paper. MTM acknowledges the support of grant
No. N00014-03-1-0185 from the US Office of Naval Research, NOAA's
Hurricane Research Division, and the US National Science Foundation
grants ATM-0649946 and ATM-0715426. RKS acknowledges financial support
for hurricane research from the German Research Council (Deutsche
Forschungsgemeinschaft).
NR 57
TC 33
Z9 33
U1 1
U2 11
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0035-9009
J9 Q J ROY METEOR SOC
JI Q. J. R. Meteorol. Soc.
PD OCT
PY 2010
VL 136
IS 653
BP 1945
EP 1953
DI 10.1002/qj.702
PN B
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 694QO
UT WOS:000285312900002
ER
PT J
AU Pereira, NR
Weber, BV
Apruzese, JP
Mosher, D
Schumer, JW
Seely, JF
Szabo, CI
Boyer, CN
Stephanakis, SJ
Hudson, LT
AF Pereira, N. R.
Weber, B. V.
Apruzese, J. P.
Mosher, D.
Schumer, J. W.
Seely, J. F.
Szabo, C. I.
Boyer, C. N.
Stephanakis, S. J.
Hudson, L. T.
TI K-line spectra from tungsten heated by an intense pulsed electron beam
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 18th Topical Conference on High-Temperature Plasma Diagnostics
CY MAY 16-20, 2010
CL Wildwood, NJ
ID ROD-PINCH DIODES; ENERGY; POWER
AB The plasma-filled rod-pinch diode (PFRP) is an intense source of x-rays ideal for radiography of dense objects. In the PRFP megavoltage electrons from a pulsed discharge concentrate at the pointed end of a 1 mm diameter tapered tungsten rod. Ionization of this plasma might increase the energy of tungsten's K alpha(1) fluorescence line, at 59.3182 keV, enough for the difference to be observed by a high-resolution Cauchois transmission crystal spectrograph. When the PFRP's intense hard bremsstrahlung is suppressed by the proper shielding, such an instrument gives excellent fluorescence spectra, albeit with as yet insufficient resolution to see any effect of tungsten's ionization. Higher resolution is possible with various straightforward upgrades that are feasible thanks to the radiation's high intensity. (c) 2010 American Institute of Physics. [doi:10.1063/1.3464268]
C1 [Pereira, N. R.] Ecopulse Inc, Springfield, VA 22150 USA.
[Weber, B. V.; Apruzese, J. P.; Mosher, D.; Schumer, J. W.; Seely, J. F.; Szabo, C. I.] USN, Res Lab, Washington, DC 20375 USA.
[Boyer, C. N.; Stephanakis, S. J.] L3 Commun, Washington, DC 20375 USA.
[Hudson, L. T.] Natl Inst Sci & Technol, Gaithersburg, MD 20899 USA.
RP Pereira, NR (reprint author), Ecopulse Inc, POB 528, Springfield, VA 22150 USA.
EM pereira@speakeasy.net
RI Schumer, Joseph/D-7591-2013
NR 15
TC 6
Z9 6
U1 1
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 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD OCT
PY 2010
VL 81
IS 10
AR 10E302
DI 10.1063/1.3464268
PG 5
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 674NQ
UT WOS:000283754000199
PM 21034001
ER
PT J
AU Seely, JF
Szabo, CI
Feldman, U
Hudson, LT
Henins, A
Audebert, P
Brambrink, E
AF Seely, J. F.
Szabo, C. I.
Feldman, U.
Hudson, L. T.
Henins, A.
Audebert, P.
Brambrink, E.
TI Hard x-ray transmission crystal spectrometer at the OMEGA-EP laser
facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 18th Topical Conference on High-Temperature Plasma Diagnostics
CY MAY 16-20, 2010
CL Wildwood, NJ
AB The transmission crystal spectrometer (TCS) is approved for taking data at the OMEGA-EP laser facility since 2009 and will be available for the OMEGA target chamber in 2010. TCS utilizes a Cauchois type cylindrically bent transmission crystal geometry with a source to crystal distance of 600 mm. Spectral images are recorded by image plates in four positions, one IP on the Rowland circle and three others at 200, 400, and 600 mm beyond the Rowland circle. An earlier version of TCS was used at LULI on experiments that determined the x-ray source size from spectral line broadening on one IP positioned behind the Rowland circle. TCS has recorded numerous backlighter spectra at EP for point projection radiography and for source size measurements. Hard x-ray source size can be determined from the source broadening of both K shell emission lines and from K absorption edges in the bremsstrahlung continuum, the latter being a new way to measure the spatial extent of the hard x-ray bremsstrahlung continuum. (c) 2010 American Institute of Physics. [doi:10.1063/1.3464232]
C1 [Seely, J. F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Szabo, C. I.; Feldman, U.] Artep Inc, Ellicott City, MD 21042 USA.
[Hudson, L. T.; Henins, A.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Audebert, P.; Brambrink, E.] Ecole Polytech, LULI, F-91128 Palaiseau, France.
RP Seely, JF (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM john.seely@nrl.navy.mil
NR 7
TC 10
Z9 12
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 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD OCT
PY 2010
VL 81
IS 10
AR 10E301
DI 10.1063/1.3464232
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 674NQ
UT WOS:000283754000198
PM 21034000
ER
PT J
AU Szabo, CI
Workman, J
Flippo, K
Feldman, U
Seely, JF
Hudson, LT
Henins, A
AF Szabo, C. I.
Workman, J.
Flippo, K.
Feldman, U.
Seely, J. F.
Hudson, L. T.
Henins, A.
TI Scaling studies with the dual crystal spectrometer at the OMEGA-EP laser
facility
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 18th Topical Conference on High-Temperature Plasma Diagnostics
CY MAY 16-20, 2010
CL Wildwood, NJ
AB The dual crystal spectrometer (DCS) is an approved diagnostic at the OMEGA and the OMEGA-EP laser facilities for the measurement of high energy x-rays in the 11-90 keV energy range, e. g., for verification of the x-ray spectrum of backlighter targets of point projection radiography experiments. DCS has two cylindrically bent transmission crystal channels with image plate detectors at distances behind the crystals close to the size of the respective Rowland circle diameters taking advantage of the focusing effect of the cylindrically bent geometry. DCS, with a source to crystal distance of 1.2 m, provides the required energy dispersion for simultaneous detection of x-rays in a low energy channel (11-45 keV) and a high-energy channel (19-90 keV). A scaling study is described for varied pulse length with unchanged laser conditions (energy, focusing). The study shows that the K alpha line intensity is not strongly dependent on the length of the laser pulse. (C) 2010 American Institute of Physics. [doi:10.1063/1.3494222]
C1 [Szabo, C. I.; Feldman, U.] Artep Inc, Ellicott City, MD 21042 USA.
[Workman, J.; Flippo, K.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Seely, J. F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hudson, L. T.; Henins, A.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Szabo, CI (reprint author), Artep Inc, 2922 Excelsior Spring Circle, Ellicott City, MD 21042 USA.
EM cszabo@ssd5.nrl.navy.mil
RI Flippo, Kirk/C-6872-2009
OI Flippo, Kirk/0000-0002-4752-5141
NR 6
TC 1
Z9 2
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 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD OCT
PY 2010
VL 81
IS 10
AR 10E320
DI 10.1063/1.3494222
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 674NQ
UT WOS:000283754000217
PM 21034018
ER
PT J
AU Szabo, CI
Feldman, U
Seely, JF
Curry, JJ
Hudson, LT
Henins, A
AF Szabo, C. I.
Feldman, U.
Seely, J. F.
Curry, J. J.
Hudson, L. T.
Henins, A.
TI Asymmetrically cut crystal pair as x-ray magnifier for imaging at high
intensity laser facilities
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article; Proceedings Paper
CT 18th Topical Conference on High-Temperature Plasma Diagnostics
CY MAY 16-20, 2010
CL Wildwood, NJ
ID EMISSION
AB The potential of an x-ray magnifier prepared from a pair of asymmetrically cut crystals is studied to explore high energy x-ray imaging capabilities at high intensity laser facilities. OMEGA-EP and NIF when irradiating mid and high Z targets can be a source of high-energy x-rays whose production mechanisms and use as backlighters are a subject of active research. This paper studies the properties and potential of existing asymmetric cut crystal pairs from the National Institute of Standards and Technology (NIST) built in a new enclosure for imaging x-ray sources. The technique of the x-ray magnifier has been described previously. This new approach is aimed to find a design that could be used at laser facilities by magnifying the x-ray source into a screen far away from the target chamber center, with fixed magnification defined by the crystals' lattice spacing and the asymmetry angles. The magnified image is monochromatic and the imaging wavelength is set by crystal asymmetry and incidence angles. First laboratory results are presented and discussed. (C) 2010 American Institute of Physics. [doi:10.1063/1.3492382]
C1 [Szabo, C. I.; Feldman, U.] Artep Inc, Ellicott City, MD 21042 USA.
[Seely, J. F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Curry, J. J.; Hudson, L. T.; Henins, A.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Szabo, CI (reprint author), Artep Inc, 2922 Excelsior Spring Circle, Ellicott City, MD 21042 USA.
EM cszabo@ssd5.nrl.navy.mil
NR 8
TC 1
Z9 2
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD OCT
PY 2010
VL 81
IS 10
AR 10E311
DI 10.1063/1.3492382
PG 3
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 674NQ
UT WOS:000283754000208
PM 21034010
ER
PT J
AU Paine, SCM
AF Paine, S. C. M.
TI The Impact of China and Russia on United States-Mongolian Political
Relations in the Twentieth Century
SO RUSSIAN REVIEW
LA English
DT Book Review
C1 [Paine, S. C. M.] USN, War Coll, Stennis Space Ctr, MS 39529 USA.
RP Paine, SCM (reprint author), USN, War Coll, Stennis Space Ctr, MS 39529 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0036-0341
J9 RUSS REV
JI Russ. Rev.
PD OCT
PY 2010
VL 69
IS 4
BP 734
EP 735
PG 2
WC History
SC History
GA 651BN
UT WOS:000281899700049
ER
PT J
AU Boling, M
Padua, D
Marshall, S
Guskiewicz, K
Pyne, S
Beutler, A
AF Boling, M.
Padua, D.
Marshall, S.
Guskiewicz, K.
Pyne, S.
Beutler, A.
TI Gender differences in the incidence and prevalence of patellofemoral
pain syndrome
SO SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
LA English
DT Article
DE epidemiology; chronic knee injury; anterior knee pain; injury rate;
males; females
ID LOWER-EXTREMITY KINEMATICS; RISK-FACTORS; INJURY; RECRUITS; PATTERNS;
STRENGTH; KINETICS; PLAYERS; SPORTS; MOTION
AB The purpose of this investigation was to determine the association between gender and the prevalence and incidence of patellofemoral pain syndrome (PFPS). One thousand five hundred and twenty-five participants from the United States Naval Academy (USNA) were followed for up to 2.5 years for the development of PFPS. Physicians and certified athletic trainers documented the cases of PFPS. PFPS was defined as retropatellar pain during at least two of the following activities: ascending/descending stairs, hopping/jogging, prolonged sitting, kneeling, and squatting, negative findings on examination of knee ligament, menisci, bursa, and synovial plica, and pain on palpation of either the patellar facets or femoral condyles. Poisson and logistic regressions were performed to determine the association between gender and the incidence and prevalence of PFPS, respectively. The incidence rate for PFPS was 22/1000 person-years. Females were 2.23 times (95% CI: 1.19, 4.20) more likely to develop PFPS compared with males. While not statistically significant, the prevalence of PFPS at study enrollment tended to be higher in females (15%) than in males (12%) (P=0.09). Females at the USNA are significantly more likely to develop PFPS than males. Additionally, at the time of admission to the academy, the prevalence of PFPS was not significantly different between genders.
C1 [Boling, M.] Univ N Florida, Dept Athlet Training & Phys Therapy, Jacksonville, FL 32246 USA.
[Padua, D.; Marshall, S.; Guskiewicz, K.] Univ N Carolina, Chapel Hill, NC USA.
[Pyne, S.] USN Acad, Annapolis, MD USA.
[Beutler, A.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Boling, M (reprint author), Univ N Florida, Dept Athlet Training & Phys Therapy, 1 UNF Dr, Jacksonville, FL 32246 USA.
EM m.boling@unf.edu
OI Guskiewicz, Kevin/0000-0002-8682-2130; Marshall,
Stephen/0000-0002-2664-9233
FU National Institute of Arthritis and Musculo-skeletal and Skin Diseases
[R01 AR050461]; American Orthopaedic Society for Sports Medicine
(AOSSM); National Academy of Sports Medicine (NASM)
FX This project was supported by grant R01 AR050461 from the National
Institute of Arthritis and Musculo-skeletal and Skin Diseases. Funds for
the pilot study were provided by the American Orthopaedic Society for
Sports Medicine (AOSSM). Additional funding was provided by the National
Academy of Sports Medicine (NASM).
NR 24
TC 114
Z9 118
U1 4
U2 24
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0905-7188
J9 SCAND J MED SCI SPOR
JI Scand. J. Med. Sci. Sports
PD OCT
PY 2010
VL 20
IS 5
BP 725
EP 730
DI 10.1111/j.1600-0838.2009.00996.x
PG 6
WC Sport Sciences
SC Sport Sciences
GA 648BU
UT WOS:000281666200004
PM 19765240
ER
PT J
AU Lin, BC
AF Lin, Baochuan
TI Peer review: Rejected?
SO SCIENTIST
LA English
DT Letter
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Lin, BC (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM blin@cbmse.nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SCIENTIST INC
PI PHILADELPHIA
PA 400 MARKET ST, STE 1250, PHILADELPHIA, PA 19106 USA
SN 0890-3670
J9 SCIENTIST
JI Scientist
PD OCT
PY 2010
VL 24
IS 10
BP 16
EP 16
PG 1
WC Information Science & Library Science; Multidisciplinary Sciences
SC Information Science & Library Science; Science & Technology - Other
Topics
GA 654DO
UT WOS:000282148900008
ER
PT J
AU Rentsch, JR
Delise, LA
Salas, E
Letsky, MP
AF Rentsch, Joan R.
Delise, Lisa A.
Salas, Eduardo
Letsky, Michael P.
TI Facilitating Knowledge Building in Teams: Can a New Team Training
Strategy Help?
SO SMALL GROUP RESEARCH
LA English
DT Article
DE team; information sharing/nonsharing; team cognition; decision making
ID DECISION-MAKING; MENTAL MODELS; INFORMATION; PERFORMANCE; TEXT;
METAANALYSIS; COGNITION; DIAGRAMS; SUPPORT; IMPACT
AB Problem-solving teams composed of members possessing unique knowledge tend to be ineffective because of impediments that limit information sharing, including the sampling advantage of common information and differential schema structures among team members. Teams using a team training strategy aimed at ameliorating these impediments were expected to experience knowledge building and high performance. Data were collected from 40 teams of three co-located members, which were randomly assigned to a training or control condition. All teams completed a realistic military-based hidden profile problem-solving task. Teams in the training condition were trained to build knowledge using an information board (which served as a knowledge object) accompanied with schema-enriched communication. Teams in the control condition operated as typical co-located problem-solving teams and did not use an information board or receive the training. All hypotheses were supported. Teams experiencing the training strategy had higher knowledge transfer, interoperable knowledge, cognitive congruence, and performance than control teams. The training strategy appears to be effective in aiding teams to ameliorate communication impediments. Apparently, teams externalized their knowledge by communicating aspects of their schemas for task knowledge and visually representing and collaboratively structuring that knowledge.
C1 [Rentsch, Joan R.] Univ Tennessee, Dept Management, Knoxville, TN 37996 USA.
[Salas, Eduardo] Univ Cent Florida, Orlando, FL 32816 USA.
[Letsky, Michael P.] Off Naval Res, Arlington, VA 22217 USA.
RP Rentsch, JR (reprint author), Univ Tennessee, Dept Management, Knoxville, TN 37996 USA.
EM jrentsch@utk.edu
NR 43
TC 9
Z9 9
U1 1
U2 20
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1046-4964
J9 SMALL GR RES
JI Small Group Res.
PD OCT
PY 2010
VL 41
IS 5
BP 505
EP 523
DI 10.1177/1046496410369563
PG 19
WC Psychology, Applied; Management; Psychology, Social
SC Psychology; Business & Economics
GA 649UB
UT WOS:000281798300001
ER
PT J
AU Meyer, DJ
Bass, R
Katzer, DS
Deen, DA
Binari, SC
Daniels, KM
Eddy, CR
AF Meyer, David J.
Bass, Robert
Katzer, D. Scott
Deen, David A.
Binari, Steven C.
Daniels, Kevin M.
Eddy, Charles R., Jr.
TI Self-aligned ALD AlOx T-gate insulator for gate leakage current
suppression in SiNx-passivated AlGaN/GaN HEMTs
SO SOLID-STATE ELECTRONICS
LA English
DT Article; Proceedings Paper
CT International Semiconductor Device Research Symposium (ISDRS 2009)
CY DEC 09-11, 2009
CL Univ Maryland, Stamp Union, College Pk, MD
HO Univ Maryland, Stamp Union
DE Gate leakage current; Breakdown; Passivation; Insulated gate; MIS;
Pulsed I-V
ID MOLECULAR-BEAM EPITAXY; PLASMA TREATMENT; PERFORMANCE; OPTIMIZATION;
RELIABILITY; GANHEMTS; GROWTH
AB A proof-of-concept metal-insulator-semiconductor (MIS) AlGaN/GaN high-electron mobility transistor (HEMT) that uses a self-aligned 10 nm AlOx gate insulator and SiNx passivation in the device access regions was investigated. Self-alignment of the gate insulator to metal was achieved by utilizing a sub-micron tri-layer photoresist pattern to lift-off sequentially-deposited AlOx dielectric and Ni/Au gate metal layers. By keeping the temperature low (100 degrees C) during the atomic-layer deposition (ALD) of AlOx, reflow of the photoresist pattern was prevented, which maintained the integrity of its re-entrant profile. After lift-off, the resulting transistor gate had a T-shaped profile with AlOx directly under the gate metal only. In a split wafer comparison, this experimental structure reduced reverse-bias gate leakage current after passivation by one to two orders of magnitude over Schottky gate devices. Plasma-enhanced chemical vapor deposition (PECVD) SiNx passivation of the exposed AlGaN surface access regions of AlOx-insulated gate devices was found to produce pulsed I-V improvements that are similar to those observed in passivated Schottky gate devices. This fabrication technique has been successfully used to demonstrate insulated gate devices with gate lengths (L-G) as short as 160 nm with f(T) = 35 GHz and f(max) = 77 GHz small-signal performance. Substantial output conductance and f(T) . L-G product roll-off were observed at short gate lengths for both AlOx-insulated and Schottky gate devices. Published by Elsevier Ltd.
C1 [Meyer, David J.; Bass, Robert; Katzer, D. Scott; Deen, David A.; Binari, Steven C.; Daniels, Kevin M.; Eddy, Charles R., Jr.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Meyer, DJ (reprint author), USN, Res Lab, Div Elect Sci & Technol, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.meyer@nrl.navy.mil
RI Katzer, D. Scott/N-7841-2013
NR 31
TC 11
Z9 11
U1 1
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD OCT
PY 2010
VL 54
IS 10
SI SI
BP 1098
EP 1104
DI 10.1016/j.sse.2010.05.024
PG 7
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA 640AL
UT WOS:000281019100010
ER
PT J
AU Anders, MW
Andersen, ME
Clewell, HJ
Gargas, ML
Guengerich, FP
Reitz, RH
AF Anders, M. W.
Andersen, Melvin E.
Clewell, Harvey J., III
Gargas, Michael L.
Guengerich, F. Peter
Reitz, Richard H.
TI Comment on MV Evans and JC Caldwell: Evaluation of two different
metabolic hypotheses for dichloromethane toxicity using physiologically
based pharmacokinetic modeling of in vivo gas uptake data exposure in
female B6C3F1 mice, Toxicol. Appl. Pharmacol., 244,280-290,2010
SO TOXICOLOGY AND APPLIED PHARMACOLOGY
LA English
DT Letter
ID RELEVANCE; CHLORIDE; CYP2A6
C1 [Clewell, Harvey J., III] Hamner Inst Hlth Sci, Ctr Human Hlth Assessment, Res Triangle Pk, NC 27709 USA.
[Anders, M. W.] Univ Rochester, Med Ctr, Dept Anesthesiol, Rochester, NY 14642 USA.
[Anders, M. W.] Univ Rochester, Med Ctr, Dept Environm Med, Rochester, NY 14642 USA.
[Anders, M. W.] Univ Rochester, Med Ctr, Dept Physiol & Pharmacol, Rochester, NY 14642 USA.
[Andersen, Melvin E.] Hamner Inst Hlth Sci, Program Chem Safety Sci, Res Triangle Pk, NC 27709 USA.
[Gargas, Michael L.] USN, Hlth Res Ctr, Environm Hlth Effects Lab, Wright Patterson AFB, OH 45433 USA.
[Guengerich, F. Peter] Vanderbilt Univ, Sch Med, Dept Biochem, Nashville, TN 37232 USA.
[Guengerich, F. Peter] Vanderbilt Univ, Sch Med, Ctr Mol Toxicol, Nashville, TN 37232 USA.
[Reitz, Richard H.] RHR Toxicol Consulting, Midland, MI 48640 USA.
RP Clewell, HJ (reprint author), Hamner Inst Hlth Sci, Ctr Human Hlth Assessment, 6 Davis Dr,POB 12137, Res Triangle Pk, NC 27709 USA.
EM hclewell@theHamner.org
NR 9
TC 0
Z9 0
U1 0
U2 0
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0041-008X
J9 TOXICOL APPL PHARM
JI Toxicol. Appl. Pharmacol.
PD OCT 1
PY 2010
VL 248
IS 1
BP 63
EP 64
DI 10.1016/j.taap.2010.07.012
PG 2
WC Pharmacology & Pharmacy; Toxicology
SC Pharmacology & Pharmacy; Toxicology
GA 652HS
UT WOS:000281995100008
PM 20655322
ER
PT J
AU Anam, K
Amare, MF
Zins, SR
Davis, TA
AF Anam, Khairul
Amare, Mihret F.
Zins, Stephen R.
Davis, Thomas A.
TI Infusion of Lin(-) bone marrow cells results in multilineage
macrochimerism and skin allograft tolerance in minimally conditioned
recipient mice
SO TRANSPLANT IMMUNOLOGY
LA English
DT Article
DE Allogeneic transplantation; Bone marrow; T regulatory cells; Chimerism;
Tolerance induction
ID DONOR-SPECIFIC TOLERANCE; HEMATOPOIETIC STEM-CELLS; IMMUNOLOGICAL
SELF-TOLERANCE; REGULATORY T-CELLS; LOW-DOSE BUSULFAN; TRANSPLANTATION
TOLERANCE; MIXED CHIMERISM; COSTIMULATION BLOCKADE; ADULT MICE;
INDUCTION
AB Donor-specific immunological tolerance using high doses of donor bone marrow cells (BMC) has been demonstrated in mixed chimerism-based tolerance induction protocols; however, the development of graft versus host disease (GVHD) remains a risk. In the present study, we demonstrate that the infusion of low numbers of donor Lin(-) bone marrow cells (Lin(-) BMC) 7 days post allograft transplantation facilitates high level macrochimerism induction and graft tolerance. Full-thickness BALB/c skin allografts were transplanted onto C57BL/6 mice. Mice were treated with anti-CD4 and anti-CD8 mAbs on day 0, +2, +5, +7 and +14 along with low dose busulfan on day +5. A low dose of highly purified Lin(-) BMC from BALB/c donor mice was infused on day +7. Chimerism and clonal cell deletion were evaluated using flow cytometry. Donor-specific tolerance was tested by donor and third-party skin grafting and mixed leukocyte reaction (MLR). Lin(-) BMC infusion with minimal immunosuppression led to stable, mixed, multilineage macrochimerism and long-term allograft survival (>300 days). Mixed donor-recipient macrochimerism was observed. Donor-reactive T cells were clonally deleted and a 130% increase in CD4(+)CD25(+)Foxp3(+) regulatory T cells (Tregs) was observed in the spleen. Tolerant mice subsequently accepted second donor, but not third-party (C3H), skin grafts and recipient splenocytes failed to react with allogeneic donor cells indicating donor-specific immunological tolerance was achieved. We conclude that the infusion of donor Lin(-) BMC without cytoreductive recipient conditioning can induce indefinite survival of skin allografts via mechanisms involving the establishment of a multilineage macrochimeric state principally through clonal deletion of alloreactive T cells and peripherally induced CD4(+)Foxp3(+) Tregs. Published by Elsevier B.V.
C1 [Anam, Khairul; Amare, Mihret F.; Zins, Stephen R.; Davis, Thomas A.] USN, Regenerat Med Dept, Med Res Ctr, Operat & Undersea Med Directorate, Silver Spring, MD 20910 USA.
RP Davis, TA (reprint author), USN, Regenerat Med Dept, Med Res Ctr, Operat & Undersea Med Directorate, Room 2A10,503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM thomas.davis1@med.navy.mil
FU BUMED work unit [601153, N.04508.5180.A0803]
FX This work was supported by BUMED work unit 601153 N.04508.5180.A0803.
NR 38
TC 2
Z9 2
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0966-3274
J9 TRANSPL IMMUNOL
JI Transpl. Immunol.
PD OCT
PY 2010
VL 24
IS 1
BP 69
EP 75
DI 10.1016/j.trim.2010.10.003
PG 7
WC Immunology; Transplantation
SC Immunology; Transplantation
GA 699RP
UT WOS:000285680800011
PM 20950686
ER
PT J
AU Rosenstein, JE
AF Rosenstein, Judith E.
TI Commentary on Jamie L. Callahan's "Manifestations of Power and Control:
Training as the Catalyst for Scandal at the United States Air Force
Academy"
SO VIOLENCE AGAINST WOMEN
LA English
DT Editorial Material
ID ACQUAINTANCE RAPE SCRIPTS; SEXUAL-HARASSMENT; MILITARY ACADEMY;
DISORDER; NERVOSA; BULIMIA; WOMENS; GENDER; MEN
C1 USN Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
RP Rosenstein, JE (reprint author), USN Acad, Dept Leadership Eth & Law, 112 Cooper Rd,Stop 7B, Annapolis, MD 21402 USA.
EM rosenste@usna.edu
NR 40
TC 1
Z9 1
U1 1
U2 4
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1077-8012
J9 VIOLENCE AGAINST WOM
JI Violence Against Women
PD OCT
PY 2010
VL 16
IS 10
BP 1173
EP 1185
DI 10.1177/1077801210383152
PG 13
WC Women's Studies
SC Women's Studies
GA 671MQ
UT WOS:000283510600008
PM 20980234
ER
PT J
AU Abelev, BI
Aggarwal, MM
Ahammed, Z
Alakhverdyants, AV
Anderson, BD
Arkhipkin, D
Averichev, GS
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Baumgart, S
Beavis, DR
Bellwied, R
Benedosso, F
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Biritz, B
Bland, LC
Bnzarov, I
Bombara, M
Bonner, BE
Bouchet, J
Braidot, E
Brandin, AV
Bruna, E
Bueltmann, S
Burton, TP
Bystersky, M
Cai, XZ
Caines, H
Sanchez, MCD
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
Clarke, RF
Codrington, MJM
Corliss, R
Cormier, TM
Cosentino, MR
Cramer, JG
Crawford, HJ
Das, D
Dash, S
Daugherity, M
De Silva, LC
Dedovich, TG
DePhillips, M
Derevschikov, AA
de Souza, RD
Didenko, L
Djawotho, P
Dogra, SM
Dong, X
Drachenberg, JL
Draper, JE
Dunlop, JC
Mazumdar, MRD
Efimov, LG
Elhalhuli, E
Elnimr, M
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, CA
Gaillard, L
Gangadharan, DR
Ganti, MS
Garcia-Solis, EJ
Geromitsos, A
Geurts, F
Ghazikhanian, V
Ghosh, P
Gorbunov, YN
Gordon, A
Grebenyuk, O
Grosnick, D
Grube, B
Guertin, SM
Guimaraes, KSFF
Gupta, A
Gupta, N
Guryn, W
Haag, B
Hallman, TJ
Hamed, A
Harris, JW
He, W
Heinz, M
Heppelmann, S
Hippolyte, B
Hirsch, A
Hjort, E
Hoffman, AM
Hoffmann, GW
Hofman, DJ
Hollis, RS
Huang, HZ
Humanic, TJ
Huo, L
Igo, G
Iordanova, A
Jacobs, P
Jacobs, WW
Jakl, P
Jena, C
Jin, F
Jones, CL
Jones, PG
Joseph, J
Judd, EG
Kabana, S
Kajimoto, K
Kang, K
Kapitan, J
Kauder, K
Keane, D
Kechechyan, A
Kettler, D
Khodyrev, VY
Kikola, DP
Kiryluk, J
Kisiel, A
Klein, SR
Knospe, AG
Kocoloski, A
Koetke, DD
Konzer, J
Kopytine, M
Koralt, I
Korsch, W
Kotchenda, L
Kouchpil, V
Kravtsov, P
Kravtsov, VI
Krueger, K
Krus, M
Kuhn, C
Kumar, L
Kurnadi, P
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, CH
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, N
Li, Y
Lin, G
Lindenbaum, SJ
Lisa, MA
Liu, F
Liu, H
Liu, J
Liu, L
Ljubicic, T
Llope, WJ
Longacre, RS
Love, WA
Lu, Y
Ludlam, T
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Mall, OI
Mangotra, LK
Manweiler, R
Margetis, S
Markert, C
Masui, H
Matis, HS
Matulenko, YA
McDonald, D
McShane, TS
Meschanin, A
Milner, R
Minaev, NG
Mioduszewski, S
Mischke, A
Mohanty, B
Morozov, DA
Munhoz, MG
Nandi, BK
Nattrass, C
Nayak, TK
Nelson, JM
Netrakanti, PK
Ng, MJ
Nogach, LV
Nurushev, SB
Odyniec, G
Ogawa, A
Okada, H
Okorokov, V
Olson, D
Pachr, M
Page, BS
Pal, SK
Pandit, Y
Panebratsev, Y
Pawlak, T
Peitzmann, T
Perevoztchikov, V
Perkins, C
Peryt, W
Phatak, SC
Pile, P
Planinic, M
Ploskon, MA
Pluta, J
Plyku, D
Poljak, N
Poskanzer, AM
Potukuchi, BVKS
Prindle, D
Pruneau, C
Pruthi, NK
Pujahari, PR
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
Sahoo, R
Sakai, S
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
Sorensen, P
Sowinski, J
Spinka, HM
Srivastava, B
Stanislaus, TDS
Staszak, D
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Subba, NL
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Timoshenko, S
Tlusty, D
Tokarev, M
Trainor, TA
Tram, VN
Trentalange, S
Tribble, RE
Tsai, OD
Ulery, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Videbaek, F
Vigdor, SE
Viyogi, YP
Vokal, S
Voloshin, SA
Wada, M
Walker, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, X
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, Y
Xie, W
Xu, N
Xu, QH
Xu, Y
Xu, Z
Yang, Y
Yepes, P
Yip, K
Yoo, IK
Yue, Q
Zawisza, M
Zbroszczyk, H
Zhan, W
Zhang, S
Zhang, WM
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, Y
Zhong, C
Zhou, J
Zhu, X
Zoulkarneev, R
Zoulkarneeva, Y
Zuo, JX
AF Abelev, B. I.
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Anderson, B. D.
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baudot, J.
Baumgart, S.
Beavis, D. R.
Bellwied, R.
Benedosso, F.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Biritz, B.
Bland, L. C.
Bnzarov, I.
Bombara, M.
Bonner, B. E.
Bouchet, J.
Braidot, E.
Brandin, A. V.
Bruna, E.
Bueltmann, S.
Burton, T. P.
Bystersky, M.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Catu, O.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, K. E.
Christie, W.
Clarke, R. F.
Codrington, M. J. M.
Corliss, R.
Cormier, T. M.
Cosentino, M. R.
Cramer, J. G.
Crawford, H. J.
Das, D.
Dash, S.
Daugherity, M.
De Silva, L. 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.
Dunlop, J. C.
Mazumdar, M. R. Dutta
Efimov, L. G.
Elhalhuli, E.
Elnimr, M.
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. J.
Geromitsos, A.
Geurts, F.
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.
Huo, L.
Igo, G.
Iordanova, A.
Jacobs, P.
Jacobs, W. W.
Jakl, P.
Jena, C.
Jin, F.
Jones, C. L.
Jones, P. G.
Joseph, J.
Judd, E. G.
Kabana, S.
Kajimoto, K.
Kang, K.
Kapitan, J.
Kauder, K.
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.
Konzer, J.
Kopytine, M.
Koralt, I.
Korsch, W.
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.
Lee, J. 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.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Mangotra, L. K.
Manweiler, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
Matulenko, Yu. A.
McDonald, D.
McShane, T. S.
Meschanin, A.
Milner, R.
Minaev, N. G.
Mioduszewski, S.
Mischke, A.
Mohanty, B.
Morozov, D. A.
Munhoz, M. G.
Nandi, B. K.
Nattrass, C.
Nayak, T. K.
Nelson, J. M.
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.
Pile, P.
Planinic, M.
Ploskon, M. A.
Pluta, J.
Plyku, D.
Poljak, N.
Poskanzer, A. M.
Potukuchi, B. V. K. S.
Prindle, D.
Pruneau, C.
Pruthi, N. K.
Pujahari, P. R.
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.
Sahoo, R.
Sakai, S.
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.
Sorensen, P.
Sowinski, J.
Spinka, H. M.
Srivastava, B.
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
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Timoshenko, S.
Tlusty, D.
Tokarev, M.
Trainor, T. A.
Tram, V. N.
Trentalange, S.
Tribble, R. E.
Tsai, O. D.
Ulery, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Videbaek, F.
Vigdor, S. E.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Wada, M.
Walker, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y.
Xie, W.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yang, Y.
Yepes, P.
Yip, K.
Yoo, I-K.
Yue, Q.
Zawisza, M.
Zbroszczyk, H.
Zhan, W.
Zhang, S.
Zhang, W. M.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, Y.
Zhong, C.
Zhou, J.
Zhu, X.
Zoulkarneev, R.
Zoulkarneeva, Y.
Zuo, J. X.
CA STAR Collaboration
TI Parton energy loss in heavy-ion collisions via direct-photon and
charged-particle azimuthal correlations
SO PHYSICAL REVIEW C
LA English
DT Article
ID QUARK-GLUON PLASMA; JET TOMOGRAPHY
AB Charged-particle spectra associated with direct photon (gamma(dir)) and pi(0) are measured in p + p and Au + Au collisions at center-of-mass energy root(S)(NN) = 200 GeV with the STAR detector at the Relativistic Heavy Ion Collider. A shower-shape analysis is used to partially discriminate between gamma(dir) and pi(0). Assuming no associated charged particles in the gamma(dir) direction ( near side) and small contribution from fragmentation photons (gamma(frag)), the associated charged-particle yields opposite to gamma(dir) (away side) are extracted. In central Au + Au collisions, the charged-particle yields at midrapidity (vertical bar eta vertical bar < 1) and high transverse momentum (3 < (assoc)(PT) < 16 GeV/c) associated with gamma(dir) and pi(0) (vertical bar eta vertical bar < 0.9, 8 < (trig)(PT) < 16 GeV/c) are suppressed by a factor of 3-5 compared with p + p collisions. The observed suppression of the associated charged particles is similar for gamma(dir) and pi(0) and independent of the gamma(dir) energy within uncertainties. These measurements indicate that, in the kinematic range covered and within our current experimental uncertainties, the parton energy loss shows no sensitivity to the parton initial energy, path length, or color charge.
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[Barnby, L. S.; Bombara, M.; Burton, T. P.; Elhalhuli, E.; Gaillard, L.; Jones, P. G.; Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Christie, W.; DePhillips, M.; Didenko, L.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Hallman, T. J.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ludlam, T.; Ogawa, A.; Okada, H.; Perevoztchikov, V.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Sanchez, M. Calderon de la Barca; Cebra, D.; Das, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA.
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[de Souza, R. Derradi; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, CZ-11519 Prague, Czech Republic.
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[Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indiana Univ, Bloomington, IN 47408 USA.
[Baudot, J.; Hippolyte, B.; Kuhn, C.; Shabetai, A.] Inst Rech Subatom, Strasbourg, France.
[Bhasin, A.; Dogra, S. M.; Gupta, A.; Gupta, N.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India.
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[Fatemi, R.; Korsch, W.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Sun, Z.; Wang, J. S.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Masui, H.; Matis, H. S.; Odyniec, G.; Olson, D.; Ploskon, M. A.; Poskanzer, A. M.; Ritter, H. G.; Rose, A.; Sakrejda, I.; Salur, S.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, X. P.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hoffman, A. M.; Jones, C. L.; Kocoloski, A.; Leight, W.; Milner, R.; Redwine, R.; Sakuma, T.; Surrow, B.; van Nieuwenhuizen, G.; Walker, M.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, Munich, Germany.
[Tarnowsky, T.; Wang, H.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Ridiger, A.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Lindenbaum, S. J.] CUNY City Coll, New York, NY 10031 USA.
[Benedosso, F.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.] NIKHEF, Amsterdam, Netherlands.
[Benedosso, F.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.] Univ Utrecht, Amsterdam, Netherlands.
[Chajecki, Z.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Aggarwal, M. M.; Bhati, A. K.; Kumar, L.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India.
[Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Khodyrev, V. Yu.; Kravtsov, V. I.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Hirsch, A.; Konzer, J.; Netrakanti, P. K.; Scharenberg, R. P.; Skoby, M. J.; Srivastava, B.; Stringfellow, B.; Ulery, J.; Wang, F.; Wang, Q.; Xie, W.] Purdue Univ, W Lafayette, IN 47907 USA.
[Choi, K. E.; Grube, B.; Lee, C-H.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Bonner, B. E.; Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Yepes, P.; Zhou, J.] Rice Univ, Houston, TX 77251 USA.
[Cosentino, M. R.; Guimaraes, K. S. F. F.; Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Z. P.; Zhao, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; 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.; Estienne, M.; Geromitsos, A.; 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.; Huo, L.; 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.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.; 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.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.; Trainor, T. A.] Univ Washington, Seattle, WA 98195 USA.
[Bellwied, R.; Cormier, T. M.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Timmins, A. R.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Chen, J. Y.; Feng, A.; Li, N.; Liu, F.; Liu, L.; Shi, S. S.; Wu, Y.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Baumgart, S.; Bruna, E.; Caines, H.; Catu, O.; Chikanian, A.; 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), Univ Illinois, Chicago, IL 60607 USA.
RI Cosentino, Mauro/L-2418-2014; Sumbera, Michal/O-7497-2014; Strikhanov,
Mikhail/P-7393-2014; 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; Barnby,
Lee/G-2135-2010; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012;
Planinic, Mirko/E-8085-2012; Yoo, In-Kwon/J-6222-2012; Peitzmann,
Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Yip, Kin/D-6860-2013;
Voloshin, Sergei/I-4122-2013; Pandit, Yadav/I-2170-2013; Lednicky,
Richard/K-4164-2013; Yang, Yanyun/B-9485-2014; Bielcikova,
Jana/G-9342-2014
OI Mohanty, Bedangadas/0000-0001-9610-2914; Bhasin,
Anju/0000-0002-3687-8179; Cosentino, Mauro/0000-0002-7880-8611; Sumbera,
Michal/0000-0002-0639-7323; Strikhanov, Mikhail/0000-0003-2586-0405;
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;
Barnby, Lee/0000-0001-7357-9904; Takahashi, Jun/0000-0002-4091-1779;
Peitzmann, Thomas/0000-0002-7116-899X; Yip, Kin/0000-0002-8576-4311;
Pandit, Yadav/0000-0003-2809-7943; Yang, Yanyun/0000-0002-5982-1706;
FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Open Science
Grid consortium; Office of NP within US DOE Office of Science; Office of
HEP within US DOE Office of Science; US NSF; Sloan Foundation; DFG;
STFC; EPSRC of the United Kingdom; FAPESP CNPq of Brazil; Ministry of
Education and Science of the Russian Federation; NNSFC; CAS; MoST; MoE
of China; GA of the Czech Republic; MSMT of the Czech Republic; FOM of
the Netherlands; NWO of the Netherlands; DAE of India; DST of India;
CSIR of India; Polish Ministry of Science and Higher Education; Korea
Research Foundation; Ministry of Science, Education, and Sports of the
Republic of Croatia; Russian Ministry of Science and Technology; RosAtom
of Russia; [CNRS/IN2P3]
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL and the Open Science Grid consortium for providing resources and
support. This work was supported in part by the Offices of NP and HEP
within the US DOE Office of Science, the US NSF, the Sloan Foundation,
the DFG cluster of excellence "Origin and Structure of the Universe,"
CNRS/IN2P3, STFC and EPSRC of the United Kingdom, FAPESP CNPq of Brazil,
Ministry of Education and Science of the Russian Federation, NNSFC, CAS,
MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO
of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of
Science and Higher Education, Korea Research Foundation, Ministry of
Science, Education, and Sports of the Republic of Croatia, Russian
Ministry of Science and Technology, and RosAtom of Russia.
NR 21
TC 35
Z9 35
U1 0
U2 17
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
EI 1089-490X
J9 PHYS REV C
JI Phys. Rev. C
PD SEP 30
PY 2010
VL 82
IS 3
AR 034909
DI 10.1103/PhysRevC.82.034909
PG 8
WC Physics, Nuclear
SC Physics
GA 656HE
UT WOS:000282318700007
ER
PT J
AU Boyd, TJ
Barham, BP
Hall, GJ
Osburn, CL
AF Boyd, Thomas J.
Barham, Bethany P.
Hall, Gregory J.
Osburn, Christopher L.
TI Variation in ultrafiltered and LMW organic matter fluorescence
properties under simulated estuarine mixing transects: 1. Mixing alone
SO JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
LA English
DT Article
ID EMISSION MATRIX SPECTROSCOPY; HUMIC SUBSTANCES; OPTICAL-PROPERTIES;
MOLECULAR-WEIGHT; ATLANTIC BIGHT; NATURAL-WATERS; RIVER PLUME; SEAWATER;
DOC; ENVIRONMENTS
AB Ultrafiltered and low molecular weight dissolved organic matter (UDOM and LMW-DOM, respectively) fluorescence was studied under simulated estuarine mixing using samples collected from Delaware, Chesapeake, and San Francisco Bays (USA) transects. UDOM was concentrated by tangential flow ultrafiltration (TFF) from the marine (>33 PSU), mid-estuarine (similar to 16 PSU), and freshwater (<1 PSU) members. TFF permeates (<1 kDa) from the three members were used to create artificial salinity transects ranging from similar to 0 to similar to 36, with 4 PSU increments. UDOM from the end-or mid-members was added in equal amounts to each salinity-mix. Three-dimensional fluorescence excitation-emission matrix (EEMs) spectra were generated for each end-member permeate and UDOM through the full estuarine mixing transect. Fluorescence components such as proteinaceous, terrigenous, and marine derived humic peaks, and certain fluorescent ratios were noticeably altered by simulated estuarine mixing, suggesting that LMW DOM and UDOM undergo physicochemical alteration as they move to or from the freshwater, mid-estuarine, or coastal ocean members. LMW fluorescence components fit a decreasing linear mixing model from mid salinities to the ocean end-member, but were more highly fluorescent than mixing alone would predict in lower salinities (<8). Significant shifts were also seen in UDOM peak emission wavelengths with blue-shifting toward the ocean end-member. Humic-type components in UDOM generally showed lower fluorescent intensities at low salinities, higher at mid-salinities, and lower again toward the ocean end-member. T (believed to be proteinaceous) and N (labile organic matter) peaks behaved similarly to each other, but not to B peak fluorescence, which showed virtually no variation in permeate or UDOM mixes with salinity. PCA and PARAFAC models showed similar results suggesting trends could be modeled for DOM end-and mid-member sources. Changes in fluorescence properties due to estuarine mixing may be important when using CDOM as a proxy for DOM cycling in coastal systems.
C1 [Boyd, Thomas J.; Barham, Bethany P.] USN, Res Lab, Washington, DC 20375 USA.
[Hall, Gregory J.] US Coast Guard Acad, Dept Sci, New London, CT 06320 USA.
[Osburn, Christopher L.] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
RP Boyd, TJ (reprint author), USN, Res Lab, Code 6114,4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM thomas.boyd@nrl.navy.mil; gregory.hall@uscga.edu; closburn@ncsu.edu
OI Osburn, Christopher/0000-0002-9334-4202
FU National Research Council at the Naval Research Laboratory; The Office
of Naval Research
FX This research was performed while Bethany Barham held a National
Research Council Research Associateship Award at the Naval Research
Laboratory. The Office of Naval Research supported this work. PCA and
PARAFAC modeling was greatly assisted by Kevin J. Johnson. The authors
also wish to thank the captain, crew, and support personnel of the R/V
Cape Henlopen and R/V Pt. Sur and N.V. Blough for shared ship-time.
NR 63
TC 5
Z9 5
U1 1
U2 12
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-BIOGEO
JI J. Geophys. Res.-Biogeosci.
PD SEP 29
PY 2010
VL 115
AR G00F13
DI 10.1029/2009JG000992
PG 18
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 658RU
UT WOS:000282507900001
ER
PT J
AU Boyd, TJ
Barham, BP
Hall, GJ
Schumann, BS
Paerl, RW
Osburn, CL
AF Boyd, Thomas J.
Barham, Bethany P.
Hall, Gregory J.
Schumann, Brandon S.
Paerl, Ryan W.
Osburn, Christopher L.
TI Variation in ultrafiltered and LMW organic matter fluorescence
properties under simulated estuarine mixing transects: 2. Mixing with
photoexposure
SO JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
LA English
DT Article
ID CARBOXYL-GROUP STRUCTURES; COASTAL WATERS; SEASONAL-VARIATION;
OPTICAL-PROPERTIES; CARBONYL-COMPOUNDS; HUMIC SUBSTANCES; SUWANNEE
RIVER; NATURAL-WATERS; FULVIC-ACID; SEAWATER
AB Ultrafiltered and low molecular weight dissolved organic matter (UDOM and LMW-DOM, respectively) fluorescence was studied under simulated estuarine mixing along with moderate photoexposure using Delaware, Chesapeake, and San Francisco Bays (USA) natural organic matter. UDOM was produced by tangential flow ultrafiltration (TFF) from the marine (>33 PSU), mid-estuarine (similar to 16 PSU), and freshwater (<1 PSU) members. TFF permeates (<1 kDa) were used to create artificial salinity transects nominally ranging from similar to 0 to similar to 36, with 4 PSU increments. UDOM or permeate (as control) from freshwater and mid-estuary was added to each salinity mix in the artificial transect to determine the impact of mixing behavior on optical properties. Three-dimensional fluorescence excitation-emission matrix (EEMs) spectra were generated for each end-member permeate (LMW fraction) and UDOM through the full artificial mixing transect. Fluorescent properties representing standard-identified peaks, fluorescence ratios and excitation-emission characteristics were assayed as previously reported. However, in this study, each sample was additionally photobleached for three days (nominally) to determine the coupled effect of estuarine mixing and photobleaching on LMW and UDOM fluorescence. Permeates, except Delaware Bay samples, were more bleached at lower salinities (<16). This effect was especially noticeable for mid-estuarine LMW organic material which was highly bleached at low salinities. Humic-type UDOM was generally bleached less at low salinities, maximally at mid-salinities, and less as it mixed toward the ocean end-member. As with mixing alone experiments, the B peak showed virtually no variability in the LMW and UDOMs fraction and was not significantly bleached. The N and T peak behaved similarly to one another and were significantly bleached. PCA and PARAFAC models confirmed trends for individual peaks. A four-dimensional PARAFAC model with pre- and post-bleached as the fourth dimension showed increases in the T peak fluorescence after photobleaching (with some overlap of the B and N peak). Results from this study indicate that coupled mixing and photobleaching can alter CDOM fluorescence in ways which might increase the difficulty in using CDOM as a proxy for DOM in regional carbon cycling biogeochemical models.
C1 [Boyd, Thomas J.; Barham, Bethany P.] USN, Res Lab, Washington, DC USA.
[Hall, Gregory J.; Schumann, Brandon S.] US Coast Guard Acad, Dept Sci, New London, CT 06320 USA.
[Osburn, Christopher L.] N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
[Paerl, Ryan W.] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
RP Boyd, TJ (reprint author), USN, Res Lab, Code 6114,4555 Overlook Ave,SW, Washington, DC USA.
EM thomas.boyd@nrl.navy.mil; gregory.hall@uscga.edu; rpaerl@ucsc.edu;
closburn@ncsu.edu
RI Paerl, Ryan/E-7380-2015;
OI Paerl, Ryan/0000-0003-1237-9882; Osburn, Christopher/0000-0002-9334-4202
FU National Research Council at the Naval Research Laboratory; The Office
of Naval Research
FX This research was performed while Bethany Barham held a National
Research Council Research Associateship Award at the Naval Research
Laboratory. The Office of Naval Research supported this work. PARAFAC
modeling was greatly assisted by Kevin J. Johnson. The authors also wish
to thank the captain, crew, and support personnel of the R/V Cape
Henlopen and R/V Pt. Sur and N. V. Blough for shared ship-time.
NR 37
TC 4
Z9 4
U1 2
U2 17
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-BIOGEO
JI J. Geophys. Res.-Biogeosci.
PD SEP 29
PY 2010
VL 115
AR G00F14
DI 10.1029/2009JG000994
PG 14
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 658RU
UT WOS:000282507900002
ER
PT J
AU Habasaki, J
Ngai, KL
AF Habasaki, J.
Ngai, K. L.
TI Molecular dynamics studies of ionically conducting glasses and ionic
liquids: Wave number dependence of intermediate scattering function
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID ELASTIC NEUTRON-SCATTERING; SILICATE-GLASSES; ELECTRICAL-CONDUCTIVITY;
METASILICATE GLASS; SUPERCOOLED WATER; RANDOM-WALKS; LEVY FLIGHT;
TRANSITION; SIMULATION; DIFFUSION
AB Dynamical heterogeneity is a key feature to characterize both acceleration and slowing down of the dynamics in interacting disordered materials. In the present work, the heterogeneous ion dynamics in both ionically conducting glass and in room temperature ionic liquids are characterized by the combination of the concepts of Levy distribution and multifractality. Molecular dynamics simulation data of both systems are analyzed to obtain the fractional power law of the k-dependence of the dynamics, which implies the Levy distribution of length scale. The multifractality of the motion and structures makes the system more complex. Both contributions in the dynamics become separable by using g(k,t) derived from the intermediate scattering function, F(s()k,t). When the Levy index obtained from F(s)(k,t) is combined with fractal dimension analysis of random walks and multifractal analysis, all the spatial exponent controlling both fast and slow dynamics are clarified. This analysis is generally applicable to other complex interacting systems and is deemed beneficial for understanding their dynamics. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3481099]
C1 [Habasaki, J.] Tokyo Inst Technol, Yokohama, Kanagawa 2268502, Japan.
[Ngai, K. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Habasaki, J (reprint author), Tokyo Inst Technol, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268502, Japan.
EM habasaki.j.aa@m.titech.ac.jp
RI Habasaki, Junko/B-9283-2015
OI Habasaki, Junko/0000-0002-2887-2340
FU Office of Naval Research
FX The work performed at the Naval Research Laboratory was supported by the
Office of Naval Research. We are grateful for the developer of the
programs AMBER 9 (Ref. 68) used for the MD simulation of
EMIM-NO3 and the program for the WTMM multifractal analysis
(Ref.69) used for the time series analysis shown in Fig. 8.
NR 70
TC 4
Z9 4
U1 0
U2 19
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 SEP 28
PY 2010
VL 133
IS 12
AR 124505
DI 10.1063/1.3481099
PG 12
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 660MP
UT WOS:000282648000034
PM 20886948
ER
PT J
AU Roland, CM
Fragiadakis, D
Coslovich, D
Capaccioli, S
Ngai, KL
AF Roland, C. M.
Fragiadakis, D.
Coslovich, D.
Capaccioli, S.
Ngai, K. L.
TI Correlation of nonexponentiality with dynamic heterogeneity from
four-point dynamic susceptibility chi(4)(t) and its approximation
chi(T)(t)
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID GLASS-FORMING LIQUIDS; 1ST-ORDER TRANSITION THEORY; SUPERCOOLED LIQUIDS;
GROWING LENGTH; TRANSLATIONAL DIFFUSION; ROTATIONAL DIFFUSION;
O-TERPHENYL; RELAXATION; FORMERS; TIME
AB Various properties of vitrifying liquids are correlated with the dispersity of the dynamics, the latter reflected in the magnitude of the nonexponentiality parameter, beta(K), describing the distribution of relaxation times. These properties include the mean relaxation time, tau(alpha), the fragility, and the dynamic crossover. The correlations with beta(K) are observed in both experimental data and the results from molecular dynamics simulations on Lennard-Jones (LJ) type systems. Another, rather obvious property to correlate with beta(K) is the dynamic heterogeneity, which can be quantified from the number of molecules, N-c, dynamically correlated over a time span tau(alpha). For a given LJ system, N-c can be rigorously calculated and we find that it does indeed correlate with beta(K) over a range of thermodynamic conditions. However, the analysis of experimental data for a broad range of real materials, wherein an approximation is required to obtain N-c, reveals the absence of any relationship between N-c and beta(K) among different materials. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3481355]
C1 [Roland, C. M.; Fragiadakis, D.; Ngai, K. L.] USN, Res Lab, Washington, DC 20375 USA.
[Coslovich, D.] Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria.
[Capaccioli, S.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy.
RP Roland, CM (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM roland@nrl.navy.mil
RI Fragiadakis, Daniel/A-4510-2009; Capaccioli, Simone/A-8503-2012
OI Capaccioli, Simone/0000-0003-4866-8918
FU Office of Naval Research; National Research Council
FX The work at NRL was supported by the Office of Naval Research. D.F.
thanks the National Research Council for a postdoctoral fellowship.
NR 45
TC 29
Z9 29
U1 0
U2 11
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 SEP 28
PY 2010
VL 133
IS 12
AR 124507
DI 10.1063/1.3481355
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 660MP
UT WOS:000282648000036
PM 20886950
ER
PT J
AU Emmert, JT
Picone, JM
AF Emmert, J. T.
Picone, J. M.
TI Climatology of globally averaged thermospheric mass density
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID SOLAR EUV; EMPIRICAL-MODEL; SATELLITE; ATMOSPHERE; SERIES
AB We present a climatological analysis of daily globally averaged density data, derived from orbit data and covering the years 1967-2007, along with an empirical Global Average Mass Density Model (GAMDM) that encapsulates the 1986-2007 data. The model represents density as a function of the F-10.7 solar radio flux index, the day of year, and the Kp geomagnetic activity index. We discuss in detail the dependence of the data on each of the input variables, and demonstrate that all of the terms in the model represent consistent variations in both the 1986-2007 data (on which the model is based) and the independent 1967-1985 data. We also analyze the uncertainty in the results, and quantify how the variance in the data is apportioned among the model terms. We investigate the annual and semiannual variations of the data and quantify the amplitude, height dependence, solar cycle dependence, and interannual variability of these oscillatory modes. The auxiliary material includes Fortran 90 code for evaluating GAMDM.
C1 [Emmert, J. T.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Picone, J. M.] George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA.
RP Emmert, JT (reprint author), USN, Res Lab, Div Space Sci, Code 7643,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM john.emmert@nrl.navy.mil
FU Office of Naval Research; NASA
FX This work was supported by the Office of Naval Research and NASA's
Living with a Star Program. Orbit data were obtained from
www.space-track.org. Solar and geomagnetic activity indices were
obtained from
ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/.
NR 40
TC 35
Z9 35
U1 1
U2 8
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD SEP 28
PY 2010
VL 115
AR A09326
DI 10.1029/2010JA015298
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 658TT
UT WOS:000282513000008
ER
PT J
AU Jiang, XC
Hu, JS
Fitzgerald, LA
Biffinger, JC
Xie, P
Ringeisen, BR
Lieber, CM
AF Jiang, Xiaocheng
Hu, Jinsong
Fitzgerald, Lisa A.
Biffinger, Justin C.
Xie, Ping
Ringeisen, Bradley R.
Lieber, Charles M.
TI Probing electron transfer mechanisms in Shewanella oneidensis MR-1 using
a nanoelectrode platform and single-cell imaging
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE bacteria; bioenergy; nanostructure; electron shuttles; nanowires
ID MICROBIAL FUEL-CELLS; ELECTRICITY-GENERATION; MICROORGANISMS;
ELECTROCHEMISTRY; REDUCTION; NANOWIRES; BACTERIA; ENERGY; DSP10
AB Microbial fuel cells (MFCs) represent a promising approach for sustainable energy production as they generate electricity directly from metabolism of organic substrates without the need for catalysts. However, the mechanisms of electron transfer between microbes and electrodes, which could ultimately limit power extraction, remain controversial. Here we demonstrate optically transparent nanoelectrodes as a platform to investigate extracellular electron transfer in Shewanella oneidensis MR-1, where an array of nanoholes precludes or single window allows for direct microbe-electrode contacts. Following addition of cells, short-circuit current measurements showed similar amplitude and temporal response for both electrode configurations, while in situ optical imaging demonstrates that the measured currents were uncorrelated with the cell number on the electrodes. High-resolution imaging showed the presence of thin, 4- to 5-nm diameter filaments emanating from cell bodies, although these filaments do not appear correlated with current generation. Both types of electrodes yielded similar currents at longer times in dense cell layers and exhibited a rapid drop in current upon removal of diffusible mediators. Reintroduction of the original cell-free media yielded a rapid increase in current to similar to 80% of original level, whereas imaging showed that the positions of >70% of cells remained unchanged during solution exchange. Together, these measurements show that electron transfer occurs predominantly by mediated mechanism in this model system. Last, simultaneous measurements of current and cell positions showed that cell motility and electron transfer were inversely correlated. The ability to control and image cell/electrode interactions down to the single-cell level provide a powerful approach for advancing our fundamental understanding of MFCs.
C1 [Fitzgerald, Lisa A.; Biffinger, Justin C.; Ringeisen, Bradley R.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Jiang, Xiaocheng; Hu, Jinsong; Xie, Ping; Lieber, Charles M.] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA.
[Lieber, Charles M.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
RP Ringeisen, BR (reprint author), USN, Div Chem, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bradley.ringeisen@nrl.navy.mil; cml@cmliris.harvard.edu
RI Hu, Jin-Song/E-1001-2011; Jiang, Xiaocheng/B-8750-2016
OI Hu, Jin-Song/0000-0002-6268-0959; Jiang, Xiaocheng/0000-0002-3455-3653
FU Air Force Office of Scientific Research; Office of Naval Research
[0601153N]
FX We thank Dr. Fang Qian, Quan Qing, and Gene-Wei Li for helpful
discussions. C.M.L. and B.R.R. acknowledge support of this work by the
Air Force Office of Scientific Research. B.R.R. also acknowledges
support from the Office of Naval Research Program Element 0601153N (NRL
6.1).
NR 22
TC 70
Z9 71
U1 4
U2 82
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 SEP 28
PY 2010
VL 107
IS 39
BP 16806
EP 16810
DI 10.1073/pnas.1011699107
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 655AA
UT WOS:000282211700016
PM 20837546
ER
PT J
AU Hull, AJ
Welch, JR
AF Hull, Andrew J.
Welch, John R.
TI Elastic response of an acoustic coating on a rib-stiffened plate
SO JOURNAL OF SOUND AND VIBRATION
LA English
DT Article
ID FREE-WAVE-PROPAGATION; FLUID-LOADED PLATES; RADIATION; BEAMS; VIBRATION;
INFINITE; SHELL; SOUND; SET
AB This paper develops a three-dimensional analytical model of a fluid-loaded acoustic coating affixed to a rib-stiffened plate. The system is loaded by a plane wave that is harmonic both spatially and temporally. The model begins with Navier-Cauchy equations of motion for an elastic solid, which produces displacement fields that have unknown wave propagation coefficients. These are inserted into stress equations at the boundaries of the plate and the acoustic coating. These stress fields are coupled to the fluid field and the rib stiffeners with force balances. Manipulation of these equations develops an infinite number of indexed equations that are truncated and incorporated into a global matrix equation. This global matrix equation can be solved to determine the wave propagation coefficients. This produces analytical solutions to the systems' displacements, stresses, and scattered pressure field. This model, unlike previously developed analytical models, has elastic behavior and thus incorporates higher order wave motion that makes it accurate at higher wavenumbers and frequencies. An example problem is investigated for three specific model results: (1) the dynamic response, (2) a sonar array embedded in the acoustic coating, and (3) the scattered pressure field. An expression for the high frequency limitation of the model is derived. It is shown that the ribs can have a significant impact on the structural acoustic response of the system. Published by Elsevier Ltd.
C1 [Hull, Andrew J.; Welch, John R.] USN, Undersea Warfare Ctr Div, Autonomous & Def Syst Dept, Newport, RI 02841 USA.
RP Hull, AJ (reprint author), USN, Undersea Warfare Ctr Div, Autonomous & Def Syst Dept, Newport, RI 02841 USA.
EM andrew.hull@navy.mil; john.r.welch@navy.mil
NR 21
TC 11
Z9 12
U1 1
U2 11
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-460X
J9 J SOUND VIB
JI J. Sound Vibr.
PD SEP 27
PY 2010
VL 329
IS 20
BP 4192
EP 4211
DI 10.1016/j.jsv.2010.04.012
PG 20
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 622FV
UT WOS:000279647600007
ER
PT J
AU Shettle, EP
Nedoluha, GE
DeLand, MT
Thomas, GE
Olivero, JJ
AF Shettle, Eric P.
Nedoluha, Gerald E.
DeLand, Matthew T.
Thomas, Gary E.
Olivero, John J.
TI SBUV observations of polar mesospheric clouds compared with MLS
temperature and water vapor measurements
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID ULTRAVIOLET; ICE; SATELLITE
AB Earlier studies have shown that Polar Mesospheric Clouds (PMC) occur more frequently in the northern hemisphere (NH) than the SH, consistent with colder NH temperatures. Coincident PMC observations with the Solar Backscatter Ultraviolet instruments on the NOAA-16 and NOAA-18 satellite and temperature and water vapor measurements with the Microwave Limb Sounder on the Aura satellite support this result. These coincident measurements also show that, for similar temperatures and water vapor mixing ratios, PMCs occur more frequently and are brighter in the NH than the SH. Possible reasons for these hemispheric differences are discussed. Citation: Shettle, E. P., G. E. Nedoluha, M. T. DeLand, G. E. Thomas, and J. J. Olivero (2010), SBUV observations of polar mesospheric clouds compared with MLS temperature and water vapor measurements, Geophys. Res. Lett., 37, L18810, doi:10.1029/2010GL044132.
C1 [Shettle, Eric P.; Nedoluha, Gerald E.] USN, Res Lab, Washington, DC 20375 USA.
[DeLand, Matthew T.] Sci Syst & Applicat Inc, Lanham, MD 20706 USA.
[Olivero, John J.] Embry Riddle Aeronaut Univ, Dept Phys Sci, Daytona Beach, FL 32114 USA.
[Thomas, Gary E.] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80303 USA.
RP Shettle, EP (reprint author), USN, Res Lab, Code 7227,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM eshettle@comcast.net
FU NASA's Science Office; NRL; NASA
FX Most of this work was supported by grants from NASA's Science Office.
Parts of E. P. Shettle's and G. E. Nedoluha's work were supported by NRL
internal funding (from ONR). G. Thomas was supported under the NASA AIM
satellite project.
NR 25
TC 4
Z9 4
U1 0
U2 0
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 SEP 25
PY 2010
VL 37
AR L18810
DI 10.1029/2010GL044132
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 656HM
UT WOS:000282319700001
ER
PT J
AU Stevens, MH
Siskind, DE
Eckermann, SD
Coy, L
McCormack, JP
Englert, CR
Hoppel, KW
Nielsen, K
Kochenash, AJ
Hervig, ME
Randall, CE
Lumpe, J
Bailey, SM
Rapp, M
Hoffmann, P
AF Stevens, Michael H.
Siskind, David E.
Eckermann, Stephen D.
Coy, Lawrence
McCormack, John P.
Englert, Christoph R.
Hoppel, Karl W.
Nielsen, Kim
Kochenash, Andrew J.
Hervig, Mark E.
Randall, Cora E.
Lumpe, Jerry
Bailey, Scott M.
Rapp, Markus
Hoffmann, Peter
TI Tidally induced variations of polar mesospheric cloud altitudes and ice
water content using a data assimilation system
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID SUMMER MESOPAUSE REGION; NOCTILUCENT CLOUDS; PARTICLE-SIZE;
DIURNAL-VARIATIONS; LIMA MODEL; LIDAR; TEMPERATURES; MORPHOLOGY;
LATITUDES; VAPOR
AB A variety of spaceborne experiments have observed polar mesospheric clouds (PMC) since the late 20th century. Many of these experiments are on satellites in Sun-synchronous orbits and therefore allow observations only at fixed local times (LT). Temperature oscillations over the diurnal cycle are an important source of PMC variability. In order to quantify long-term natural or anthropogenic changes in PMCs, it is therefore essential to understand their variation over the diurnal cycle. To this end, we employ a prototype global numerical weather prediction system that assimilates satellite temperature and water vapor observations from the ground to similar to 90 km altitude. We assemble the resulting 6 hourly high-altitude meteorological assimilation fields from June 2007 in both LT and latitude and use them to drive a one-dimensional PMC formation model with cosmic smoke serving as nucleation sites. We find that there is a migrating diurnal temperature tide at 69 degrees N with a variation of +/-4 K at 83 km, which controls the variation of PMC total ice water content (IWC) over the diurnal cycle. The calculated IWC is normalized to observations at 2300 LT by the Solar Occultation for Ice Experiment and allowed to vary with temperature over the diurnal cycle. We find that the IWC at 69 degrees N has a single maximum between 0700 and 0800 LT and a minimum between 1900 and 2200 LT and varies by at least a factor of 5. The calculated variation of IWC with LT is substantially larger at 57 degrees N, with a single prominent peak near 0500 LT.
C1 [Stevens, Michael H.; Siskind, David E.; Eckermann, Stephen D.; Coy, Lawrence; McCormack, John P.; Englert, Christoph R.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hoppel, Karl W.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Nielsen, Kim; Kochenash, Andrew J.] Computat Phys Inc, Springfield, VA USA.
[Hervig, Mark E.] GATS Inc, Driggs, ID 83422 USA.
[Randall, Cora E.] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.
[Randall, Cora E.] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Lumpe, Jerry] Computat Phys Inc, Boulder, CO 80301 USA.
[Bailey, Scott M.] Virginia Polytech Inst & State Univ, Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Rapp, Markus; Hoffmann, Peter] Leibniz Inst Atmospher Phys eV, D-18225 Kuhlungsborn, Germany.
RP Stevens, MH (reprint author), USN, Res Lab, Div Space Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
RI Rapp, Markus/K-6081-2015;
OI Englert, Christoph/0000-0002-2145-6168; McCormack,
John/0000-0002-3674-0508; Stevens, Michael/0000-0003-1082-8955
FU NASA/AIM mission; Office of Naval Research
FX This work was supported by the NASA/AIM mission and the Office of Naval
Research. We thank Gary Thomas for useful comments on the manuscript and
Charles Bardeen for providing the meteoric smoke concentrations used in
this work. We are also grateful to Fabrizio Sassi for assistance with
the NOGAPS-ALPHA analysis.
NR 57
TC 28
Z9 28
U1 0
U2 3
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 SEP 24
PY 2010
VL 115
AR D18209
DI 10.1029/2009JD013225
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 656ID
UT WOS:000282321800002
ER
PT J
AU Rodina, AV
Efros, AL
AF Rodina, A. V.
Efros, Al. L.
TI Band-edge biexciton in nanocrystals of semiconductors with a degenerate
valence band
SO PHYSICAL REVIEW B
LA English
DT Article
ID CDSE QUANTUM DOTS; NONLINEAR OPTICAL-PROPERTIES; HOLE EXCHANGE
INTERACTION; EXCITON; ABSORPTION; MICROCRYSTALS; POLARIZATION;
LUMINESCENCE; RELAXATION; ASSIGNMENT
AB We present a theoretical analyses of the fine structure of the band-edge biexciton in nanometer-size crystallites [nanocrystal (NC) quantum dots] of direct semiconductors with a cubic lattice structure or a hexagonal lattice structure, which can be described within the framework of a quasicubic lattice model. The six ground biexciton states created from the two fourfold degenerate hole states and the two twofold degenerate electron states, according to the Pauli principle, are split into three levels by the crystal-shape asymmetry, the intrinsic crystal field (in hexagonal lattice structure), and the hole-hole exchange interaction. The size-dependent splitting and oscillator transition strength between the biexciton states and the ground exciton states were calculated in NCs with different types of spatial confinement: NCs surrounded by impenetrable barrier and NCs with a soft confinement created by gradually changing along the radius composition of the alloy forming the NC. The results of the calculations were compared with available experimental data on CdSe NCs.
C1 [Rodina, A. V.] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Efros, Al. L.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Rodina, AV (reprint author), AF Ioffe Phys Tech Inst, Politekhnicheskaya 26, St Petersburg 194021, Russia.
FU RFFI [09-0201296-a]; Swiss National Science Foundation; Office of Naval
Research
FX The work was performed under RFFI under Grant No. 09-0201296-a. A.V.R.
is grateful for the financial support received from the Swiss National
Science Foundation. The authors thank A. A. Golovatenko, who has
contributed to the variational calculations of the ground-state energy
of the hole confined in the spherical parabolic potential. A.L.E.
acknowledges support of the Office of Naval Research.
NR 47
TC 17
Z9 17
U1 4
U2 19
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD SEP 24
PY 2010
VL 82
IS 12
AR 125324
DI 10.1103/PhysRevB.82.125324
PG 14
WC Physics, Condensed Matter
SC Physics
GA 653WH
UT WOS:000282128100007
ER
PT J
AU Laming, JM
AF Laming, J. Martin
TI More Supernova Surprises
SO SCIENCE
LA English
DT Editorial Material
ID SHOCK
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Laming, JM (reprint author), USN, Res Lab, Code 7674L, Washington, DC 20375 USA.
EM j.laming@nrl.navy.mil
NR 8
TC 1
Z9 1
U1 0
U2 0
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD SEP 24
PY 2010
VL 329
IS 5999
BP 1604
EP 1605
DI 10.1126/science.1196301
PG 2
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 653NK
UT WOS:000282098100023
PM 20929831
ER
PT J
AU Pelletier, V
Bhattacharyya, S
Knoke, I
Forohar, F
Bichay, M
Gogotsi, Y
AF Pelletier, Valarie
Bhattacharyya, Sayan
Knoke, Isabel
Forohar, Farhad
Bichay, Magdy
Gogotsi, Yury
TI Copper Azide Confined Inside Templated Carbon Nanotubes
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
ID ENERGETIC MATERIALS; RAMAN; NANOPARTICLES; CAPILLARITY; COMPLEXES;
CHEMISTRY; LIQUIDS; FILMS; ACID
AB The currently used primary explosives, such as lead azide and lead styphnate, present serious health hazards due to the toxicity of lead. There is a need to replace them with equally energetic but safer-to-handle and more environmentally friendly materials. Copper azide is more environmentally acceptable, but very sensitive and detonates easily from electrostatic charges during handling. If the highly sensitive copper azide is encapsulated within conducting containers, such as anodic aluminum oxide (AAO)-templated carbon nanotubes (CNTs), its sensitivity can be tamed. This work describes a technique for confining energetic copper azide within CNTs. similar to 5 nm colloidal copper oxide nanoparticles are synthesized and filled into the 200 nm diameter CNTs, produced by template synthesis. The Cu-O inside the CNTs is reduced in hydrogen to copper, and reacted with hydrazoic acid gas to produce copper azide. Upon initiation, the 60 mu m long straight, open-ended CNTs guide decomposition gases along the tube channel without fracturing the nanotube walls. These novel materials have potential for applications as nano-detonators and green primary explosives; they also offer new opportunities for understanding the physics of detonation at the nanoscale.
C1 [Pelletier, Valarie; Bhattacharyya, Sayan; Knoke, Isabel; Gogotsi, Yury] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[Pelletier, Valarie; Bhattacharyya, Sayan; Knoke, Isabel; Gogotsi, Yury] Drexel Univ, AJ Drexel Nanotechnol Inst, Philadelphia, PA 19104 USA.
[Forohar, Farhad; Bichay, Magdy] NSWC, Res Dev Test & Evaluat IHDIV, Indian Head, MD 20640 USA.
RP Pelletier, V (reprint author), Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
EM gogotsi@drexel.edu
RI Gogotsi, Yury/B-2167-2008;
OI Gogotsi, Yury/0000-0001-9423-4032; Knoke, Isabel/0000-0001-6261-9819
FU NSWC Indian Head
FX The authors thank Dr. Vadym Mochalin for the particle size distribution
measurement, Mr. Riju Singhal for SEM imaging, and Dr. Jun Jie Niu for
Raman spectroscopy analysis (all Drexel University). The Centralized
Research Facility of Drexel University is recognized for access to
characterization tools. The funding support of NAVSEA and CORE program
at NSWC Indian Head is acknowledged.
NR 33
TC 15
Z9 18
U1 5
U2 50
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 SEP 23
PY 2010
VL 20
IS 18
BP 3168
EP 3174
DI 10.1002/adfm.201000858
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 663SL
UT WOS:000282910000022
ER
PT J
AU Nielsen, K
Siskind, DE
Eckermann, SD
Hoppel, KW
Coy, L
McCormack, JP
Benze, S
Randall, CE
Hervig, ME
AF Nielsen, K.
Siskind, D. E.
Eckermann, S. D.
Hoppel, K. W.
Coy, L.
McCormack, J. P.
Benze, S.
Randall, C. E.
Hervig, M. E.
TI Seasonal variation of the quasi 5 day planetary wave: Causes and
consequences for polar mesospheric cloud variability in 2007
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID PARTICLE-SIZE EXPERIMENT; LOWER THERMOSPHERE; NOCTILUCENT CLOUD;
WATER-VAPOR; SIMULTANEOUS LIDAR; SUMMER MESOSPHERE; MIDDLE ATMOSPHERE;
QUASI-2-DAY WAVE; ROSSBY WAVES; SCALE WAVES
AB We have investigated the 5 day wave in both temperature and water vapor in the stratosphere and mesosphere as seen in the Navy Operational Global Atmospheric Prediction System-Advanced Level Physics High Altitude (NOGAPS-ALPHA) analysis fields for summer 2007. We have compared these fields and the derived saturation ratios with polar mesospheric cloud (PMC) measurements from the AIM satellite. We find that the 5 day wave is variable in both time and space, with significant amplitudes in the temperature wave in August (up to similar to 6 K). By contrast, the 5 day wave-induced water vapor anomalies remain at a near-constant level throughout the season. During August, the 5 day wave in the NOGAPS-ALPHA saturation ratio and in the occurrence of clouds in the AIM data shows a clear anticorrelation with bright PMCs forming in the trough of the temperature wave. The analysis shows that the August enhancement in the 5 day wave amplitude acts to extend the PMC season past the time when zonal mean temperatures are saturated with respect to ice. The increased wave amplitude in August is attributed to in situ wave generation and amplification due to baroclinic instability of mean winds at around 0.1-0.01 hPa. The late-season extension of cloud occurrence due to the 5 day wave may explain previous ground-based reports of bright noctilucent cloud displays in August.
C1 [Nielsen, K.] Computat Phys Inc, Boulder, CO 80301 USA.
[Siskind, D. E.; Eckermann, S. D.; Coy, L.; McCormack, J. P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hoppel, K. W.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Benze, S.; Randall, C. E.] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA.
[Benze, S.; Randall, C. E.] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Hervig, M. E.] GATS Inc, Driggs, ID 83422 USA.
RP Nielsen, K (reprint author), Computat Phys Inc, 1650 38th St,Suite 105W, Boulder, CO 80301 USA.
EM knielsen73@gmail.com
OI McCormack, John/0000-0002-3674-0508
FU NASA [NNH09AK641]; Office of Naval Research; Defense Threat Reduction
Agency
FX We acknowledge funding from the NASA AIM Small Explorer Project and
thank all our colleagues on the AIM team for their efforts in processing
their data and making them available. The NOGAPS-ALPHA component of this
research was supported by the Office of Naval Research, the Defense
Threat Reduction Agency, and NASA's Heliophysics Guest Investigator
Program (contract NNH09AK641). Wavelet software was partly provided by
C. Torrence and G. Compo and is available at
http://atoc.colorado.edu/research/wavelets/.
NR 57
TC 29
Z9 29
U1 0
U2 0
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 SEP 22
PY 2010
VL 115
AR D18111
DI 10.1029/2009JD012676
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 656IA
UT WOS:000282321400001
ER
PT J
AU Witzel, WM
Shabaev, A
Hellberg, CS
Jacobs, VL
Efros, AL
AF Witzel, Wayne M.
Shabaev, Andrew
Hellberg, C. Stephen
Jacobs, Verne L.
Efros, Alexander L.
TI Quantum Simulation of Multiple-Exciton Generation in a Nanocrystal by a
Single Photon
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID EFFICIENCY CARRIER MULTIPLICATION; SEMICONDUCTOR NANOCRYSTALS;
MULTIEXCITON GENERATION; COLLOIDAL PBSE; DOTS
AB We have shown theoretically that efficient multiple-exciton generation (MEG) by a single photon can be observed in small nanocrystals. Our quantum simulations that include hundreds of thousands of exciton and multiexciton states demonstrate that the complex time-dependent dynamics of these states in a closed electronic system yields a saturated MEG effect on a picosecond time scale. Including phonon relaxation confirms that efficient MEG requires the exciton-biexciton coupling time to be faster than exciton relaxation time.
C1 [Witzel, Wayne M.; Hellberg, C. Stephen; Jacobs, Verne L.; Efros, Alexander L.] USN, Res Lab, Washington, DC 20375 USA.
[Witzel, Wayne M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Shabaev, Andrew] George Mason Univ, Fairfax, VA 22030 USA.
RP Witzel, WM (reprint author), USN, Res Lab, Washington, DC 20375 USA.
FU ONR; NIST [70NANB7H6138 Am 001]; Center for Advanced Solar Photophysics,
a DOE Energy Frontier Research Center; U.S. Department of Energy's
National Nuclear Security Administration [DE-AC04-94AL85000]
FX We thank Andrew Taube for important scientific advice. We acknowledge
financial support from ONR. A.S. acknowledges support from NIST
70NANB7H6138 Am 001, and Center for Advanced Solar Photophysics, a DOE
Energy Frontier Research Center. Sandia National Laboratories is a
multiprogram laboratory operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Corporation, for the U.S. Department of
Energy's National Nuclear Security Administration under Contract No
DE-AC04-94AL85000.
NR 29
TC 46
Z9 46
U1 1
U2 23
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 SEP 22
PY 2010
VL 105
IS 13
AR 137401
DI 10.1103/PhysRevLett.105.137401
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 653AP
UT WOS:000282054600006
PM 21230809
ER
PT J
AU Matthes, K
Marsh, DR
Garcia, RR
Kinnison, DE
Sassi, F
Walters, S
AF Matthes, Katja
Marsh, Daniel R.
Garcia, Rolando R.
Kinnison, Douglas E.
Sassi, Fabrizio
Walters, Stacy
TI Role of the QBO in modulating the influence of the 11 year solar cycle
on the atmosphere using constant forcings
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID QUASI-BIENNIAL OSCILLATION; STRATOSPHERIC SUDDEN WARMINGS; EQUATORIAL
UPPER-STRATOSPHERE; NORTH POLAR-REGION; GENERAL-CIRCULATION; MIDDLE
ATMOSPHERE; UV VARIABILITY; LONG-TERM; MODEL; HEMISPHERE
AB We present a set of six 20 year experiments made with a state-of-the-art chemistry-climate model that incorporates the atmosphere from the surface to the lower thermosphere. The response of the middle atmosphere to the 11 year solar cycle, its impact on the troposphere, and especially the role of an externally prescribed stratospheric quasi-biennial oscillation (QBO) is investigated with NCAR's Whole Atmosphere Community Climate Model (WACCM3). The model experiments use either fixed solar cycle inputs or fixed solar cycle together with prescribed QBO phase. The annual mean solar response in temperature and ozone in the upper stratosphere is in qualitative agreement with other modeling and observational studies and does not depend on the presence of the imposed QBO. However, the solar response in the middle to lower stratosphere differs significantly for the two QBO phases. During solar maxima a weaker Brewer-Dobson circulation with relative downwelling, warming, and enhanced ozone occurs in the tropical lower stratosphere during QBO east conditions, while a stronger circulation, cooling, and decreased ozone exists during QBO west conditions. The net ozone increase during QBO east is the combined result of production and advection, whereas during QBO west the effects cancel each other and result in little net ozone changes. Especially during Southern Hemisphere late winter to early spring, the solar response at polar latitudes switches sign between the two QBO phases and qualitatively confirms observations and other recent model studies. During a poleward downward modulation of the polar night jet and a corresponding modulation of the Brewer-Dobson circulation in time, solar signals are detected all the way down to the extratropical troposphere. Possible limitations of the model experiments with respect to the fixed solar cycle conditions or the prescribed QBO phases, as well as the constant sea surface temperatures, are discussed.
C1 [Matthes, Katja] Deutsch GeoForschungsZentrum, D-14473 Potsdam, Germany.
[Marsh, Daniel R.; Garcia, Rolando R.; Kinnison, Douglas E.; Walters, Stacy] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Sassi, Fabrizio] USN, Res Lab, Washington, DC 20375 USA.
[Matthes, Katja] Free Univ Berlin, D-1000 Berlin, Germany.
RP Matthes, K (reprint author), Deutsch GeoForschungsZentrum, D-14473 Potsdam, Germany.
EM matthes@gfz-potsdam.de
RI Matthes, Katja/F-7361-2014; Marsh, Daniel/A-8406-2008;
OI Matthes, Katja/0000-0003-1801-3072; Marsh, Daniel/0000-0001-6699-494X;
Sassi, Fabrizio/0000-0002-9492-7434
FU Freie Universitat Berlin; National Science Foundation; European
Community
FX This paper is dedicated to the memory of Byron Boville, who initiated
the development of WACCM. The authors would like to thank K. Kodera for
intense discussions and three anonymous reviewers for very helpful
comments that improved the manuscript. We would like to thank L. Gray
for providing the equatorial wind data and M. Giorgetta for discussions
about the QBO relaxation. K. Matthes was supported by a Marie Curie
Outgoing International Fellowship within the Sixth European Community
Framework Programme while staying at the National Center for Atmospheric
Research and the Freie Universitat Berlin. NCAR is operated by the
University Corporation for Atmospheric Research under the sponsorship of
the National Science Foundation. The calculations for this study were
carried out on the Columbia system of the NASA Advanced Supercomputing
Facility, Ames Research Center, California, USA.
NR 69
TC 44
Z9 44
U1 2
U2 14
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 SEP 21
PY 2010
VL 115
AR D18110
DI 10.1029/2009JD013020
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 656HW
UT WOS:000282320900001
ER
PT J
AU Keating, CF
Heelis, RA
AF Keating, C. F.
Heelis, R. A.
TI Characterization of the electric potential distribution and large scale
auroral zone flows in the ionosphere
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID INTERPLANETARY MAGNETIC-FIELD; CONVECTION; MODELS
AB In this investigation, we examine the latitude distribution of convective F region ion drifts at latitudes below the convection reversal boundary. We express latitude variations in terms of an electrostatic potential distribution to determine the sensitivity to interplanetary conditions, magnetic activity, and local time. We use a Gaussian curve segment to best represent the distribution of the potential equatorward of the polar cap and find the Gaussian half width is dependent on the potential at the convection reversal boundary with the half width being larger on the duskside than on the dawnside. We also find this parameter is dependent on local time as well as Kp. In all cases, the half width shows a greater variability on the duskside than on the dawnside.
C1 [Keating, C. F.; Heelis, R. A.] Univ Texas Dallas, William B Hanson Ctr Space Sci, Richardson, TX 75083 USA.
RP Keating, CF (reprint author), USN Acad, Dept Phys, Annapolis, MD 21405 USA.
EM keating@usna.edu
FU University of Texas at Dallas by NASA [NNX07AT82G]
FX This work is supported at the University of Texas at Dallas by NASA
grant NNX07AT82G.
NR 19
TC 0
Z9 0
U1 0
U2 1
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 SEP 21
PY 2010
VL 115
AR A09316
DI 10.1029/2010JA015447
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 656JM
UT WOS:000282327000003
ER
PT J
AU Spillmann, CM
Konnert, JH
Adams, JM
Deschamps, JR
Naciri, J
Ratna, BR
AF Spillmann, Christopher M.
Konnert, John H.
Adams, James M.
Deschamps, Jeffrey R.
Naciri, Jawad
Ratna, Banahalli R.
TI Strain analysis of a chiral smectic-A elastomer
SO PHYSICAL REVIEW E
LA English
DT Article
ID ELECTROCLINIC LIQUID-CRYSTAL; ELECTRIC-FIELD; FILMS; BREAKDOWN; LAYERS
AB We present a detailed analysis of the molecular packing of a strained liquid crystal elastomer composed of chiral mesogens in the smectic-A phase. X-ray diffraction patterns of the elastomer collected over a range of orientations with respect to the x-ray beam were used to reconstruct the three-dimensional scattering intensity as a function of tensile strain. We show that the smectic domain order is preserved in these strained elastomers. Changes in the intensity within a given scattering plane are due to reorientation, and not loss, of the molecular order in directions orthogonal to the applied strain. Incorporating the physical parameters of the elastomer, a nonlinear elastic model is presented to describe the rotation of the smectic-layered domains under strain, thus providing a fundamental analysis to the mechanical response of these unique materials.
C1 [Spillmann, Christopher M.; Konnert, John H.; Deschamps, Jeffrey R.; Naciri, Jawad; Ratna, Banahalli R.] USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20375 USA.
[Adams, James M.] Univ Surrey, Dept Phys, Surrey GU2 7XH, England.
RP Spillmann, CM (reprint author), USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20375 USA.
EM christopher.spillmann@nrl.navy.mil
RI Adams, James/B-5741-2012;
OI Adams, James/0000-0002-5299-6378; Deschamps, Jeffrey/0000-0001-5845-0010
FU Office of Naval Research
FX We thank the Office of Naval Research for funding support.
NR 24
TC 6
Z9 6
U1 2
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD SEP 21
PY 2010
VL 82
IS 3
AR 031705
DI 10.1103/PhysRevE.82.031705
PN 1
PG 9
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 652ZH
UT WOS:000282050800005
PM 21230089
ER
PT J
AU Finkel, P
Robinson, H
Stace, J
Amin, A
AF Finkel, Peter
Robinson, Harold
Stace, Joseph
Amin, Ahmed
TI Study of phase transitions in ternary lead indium niobate-lead magnesium
niobate-lead titanate relaxor ferroelectric morphotropic single crystals
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE compressive strength; elasticity; indium compounds; lead compounds;
magnesium compounds; relaxor ferroelectrics; solid-state phase
transformations; stress effects; ultrasonic effects
ID PZN-PT
AB In this work we report on the elastic hysteretic behavior observed in ferroelectric lead indium niobate-lead magnesium niobate-lead titanate (PIN-PMN-PT) relaxor single crystals under conditions of cooperative stress, temperature, and electric field. Room temperature elastic response displays strong and sharp discontinuity associated with stress induced phase transition. Quasistatic elastic response and ultrasonic wave propagation measurements demonstrated that this strain discontinuity in PIN-PMN-PT single crystal is associated with a ferroelectric rhombohedral (F-R)-ferroelectric orthorhombic (F-O) phase transition. The temperature dependent elastic response and transition strain were modeled by Devonshire theory. The crystal instability under compression is significantly improved by application of a dc bias electric field. [doi:10.1063/1.3491218]
C1 [Finkel, Peter; Robinson, Harold; Stace, Joseph; Amin, Ahmed] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Finkel, P (reprint author), USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
EM peter.finkel@navy.mil
FU Office of Naval Research (ONR)
FX We gratefully acknowledge the Office of Naval Research (ONR) for
financial support of this work. Authors also thank H. C. Materials
Corporation and TRS Technologies for supplying the crystals used in this
work. We thank Mr. J. Torres (NUWC) and Mr. Wen Dong (UCLA) for
investigating of the elastic response under electric field bias
conditions. Authors also wish to thank Dr. C. Lynch and Dr. G. Rossetti
for useful discussions.
NR 21
TC 27
Z9 27
U1 2
U2 23
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD SEP 20
PY 2010
VL 97
IS 12
AR 122903
DI 10.1063/1.3491218
PG 3
WC Physics, Applied
SC Physics
GA 653VC
UT WOS:000282124700048
ER
PT J
AU Korlacki, R
Panov, VP
Fukuda, A
Vij, JK
Spillmann, CM
Naciri, J
AF Korlacki, Rafal
Panov, Vitaly P.
Fukuda, Atsuo
Vij, Jagdish K.
Spillmann, Christopher M.
Naciri, Jawad
TI Orientational order of a ferroelectric liquid crystal with small layer
contraction
SO PHYSICAL REVIEW E
LA English
DT Article
ID SPONTANEOUS POLARIZATION; FORCE-CONSTANTS; CARBONYL GROUPS; BASIS-SETS;
MOLECULES; ASTERISK; DENSITY; FIELDS; PHASE
AB We present spectroscopic and optical studies of a non-layer-shrinkage ferroelectric liquid crystal DSiKN65. The orientational order parameters S, measured with respect to the smectic layer normal using IR spectroscopy on a sample aligned homeotropically, does not exhibit any significant variation between the smectic-A* and smectic-C* phases. In contrast the birefringence of a planar homogenous sample abruptly increases at the smectic-A* to smectic-C* transition. This suggests a general increase in the orientational order, which can be described by the orientational order parameters S' defined with respect to the director. Simultaneous increase of S' and the director tilt Theta may explain the low shrinkage of smectic layers, which is consistent with recent theoretical models describing the smectic-A* to smectic-C* transition for such materials.
C1 [Panov, Vitaly P.; Fukuda, Atsuo; Vij, Jagdish K.] Univ Dublin Trinity Coll, Dept Elect & Elect Engn, Dublin 2, Ireland.
[Spillmann, Christopher M.; Naciri, Jawad] Ctr Bio Mol Sci & Engn, Naval Res Lab, Washington, DC USA.
[Korlacki, Rafal] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA.
[Korlacki, Rafal] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA.
RP Vij, JK (reprint author), Univ Dublin Trinity Coll, Dept Elect & Elect Engn, Dublin 2, Ireland.
EM jvij@tcd.ie
RI Korlacki, Rafal/C-2404-2008; Panov, Vitaly/J-7543-2013; Fukuda,
Atsuo/I-4163-2015;
OI Fukuda, Atsuo/0000-0001-7119-3645; Vij, Jagdish K/0000-0001-7918-126X
FU Science Foundation Ireland; EU network; U.S. Department of Energy
(EPSCoR) [DE-FG02-08ER46498]; Nebraska Research Initiative
FX Authors would like to thank John H. Konnert for his help in the
diffraction data analysis. Parts of this work were supported by the
Science Foundation Ireland, EU network SAMPA, U.S. Department of Energy
(EPSCoR, Grant No. DE-FG02-08ER46498) and the Nebraska Research
Initiative.
NR 39
TC 10
Z9 10
U1 1
U2 6
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD SEP 17
PY 2010
VL 82
IS 3
AR 031702
DI 10.1103/PhysRevE.82.031702
PN 1
PG 7
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 652YT
UT WOS:000282049200004
PM 21230086
ER
PT J
AU Champlain, JG
Magno, R
Bass, R
Park, D
Boos, JB
AF Champlain, J. G.
Magno, R.
Bass, R.
Park, D.
Boos, J. B.
TI In0.69Al0.31As0.41Sb0.59/In0.27Ga0.73Sb double-heterojunction bipolar
transistors with InAs0.66Sb0.34 contact layers
SO ELECTRONICS LETTERS
LA English
DT Article
ID OHMIC CONTACTS; LOW-RESISTANCE
AB Presented are the first DC and RF results for a double heterojunction bipolar transistor, at a 6.2 angstrom lattice constant, incorporating InAs0.66Sb0.34. These devices show excellent performance with a high collector current density of 1.9 x 10(5) A/cm(2), high breakdown voltage over 2.5 V, high short-circuit current gain cutoff frequency of 59 GHz, and maximum frequency of oscillation of 34 GHz.
C1 [Champlain, J. G.; Magno, R.; Bass, R.; Park, D.; Boos, J. B.] USN, Res Lab, Washington, DC 20375 USA.
RP Champlain, JG (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM james.champlain@nrl.navy.mil
NR 8
TC 2
Z9 2
U1 0
U2 8
PU INST ENGINEERING TECHNOLOGY-IET
PI HERTFORD
PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
SN 0013-5194
J9 ELECTRON LETT
JI Electron. Lett.
PD SEP 16
PY 2010
VL 46
IS 19
BP 1333
EP 1335
DI 10.1049/el.2010.1727
PG 3
WC Engineering, Electrical & Electronic
SC Engineering
GA 655VG
UT WOS:000282282000020
ER
PT J
AU Reitzenstein, S
Munch, S
Franeck, P
Loffler, A
Hofling, S
Worschech, L
Forchel, A
Ponomarev, IV
Reinecke, TL
AF Reitzenstein, S.
Muench, S.
Franeck, P.
Loeffler, A.
Hoefling, S.
Worschech, L.
Forchel, A.
Ponomarev, I. V.
Reinecke, T. L.
TI Exciton spin state mediated photon-photon coupling in a strongly coupled
quantum dot microcavity system
SO PHYSICAL REVIEW B
LA English
DT Article
ID CAVITY
AB Semiconductor microcavities play a key role in connecting exciton states and photons in advancing quantum information in solids. In this work we report on coherent interaction between high quality microcavity photon modes and spin states of a quantum dot in the strong coupling regime of cavity quantum electrodynamics. The coupling between the photon and exciton modes is studied by varying the temperature, where the spin states are resolved with a magnetic field applied in Faraday configuration. A detailed oscillator model is used to extract coupling parameters of the individual spin and cavity modes, which shows that the coupling depends on features of the mode symmetries. Our results demonstrate an effective coupling between photon modes that is mediated by the exciton spin states.
C1 [Reitzenstein, S.; Muench, S.; Franeck, P.; Loeffler, A.; Hoefling, S.; Worschech, L.; Forchel, A.] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany.
[Reitzenstein, S.; Muench, S.; Franeck, P.; Loeffler, A.; Hoefling, S.; Worschech, L.; Forchel, A.] Univ Wurzburg, Wilhelm Conrad Rontgen Res Ctr Complex Mat Syst, D-97074 Wurzburg, Germany.
[Ponomarev, I. V.; Reinecke, T. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Reitzenstein, S (reprint author), Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany.
EM stephan.reitzenstein@physik.uni-wuerzburg.de
RI Ponomarev, Ilya/F-5183-2010; Reitzenstein, Stephan/A-9184-2014; Hofling,
Sven/C-3140-2013;
OI Ponomarev, Ilya/0000-0002-8584-6034; Hofling, Sven/0000-0003-0034-4682;
Forchel, Alfred/0000-0002-9377-9935
FU Deutsche Forschungsgemeinschaft via the Research Group "Quantum Optics
in Semiconductor Nanostructures"; BMBF; U.S. Office of Naval Research
FX The authors acknowledge financial support by the Deutsche
Forschungsgemeinschaft via the Research Group "Quantum Optics in
Semiconductor Nanostructures," the BMBF through the project "NanoQuit,"
the State of Bavaria and the U.S. Office of Naval Research. We thank M.
Emmerling and A. Wolf for technical assistance.
NR 23
TC 17
Z9 17
U1 0
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD SEP 16
PY 2010
VL 82
IS 12
AR 121306
DI 10.1103/PhysRevB.82.121306
PG 4
WC Physics, Condensed Matter
SC Physics
GA 652LP
UT WOS:000282008500001
ER
PT J
AU Jordan, PM
AF Jordan, P. M.
TI A note on Chrystal's equation
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Chrystal's equation; Nonlinear ordinary differential equations; Lambert
W-function; Golden ratio
ID LAMBERT-W-FUNCTION
AB The exact, explicit form of the transcendental solution of Chrystal's equation, a first order nonlinear ordinary differential equation (ODE) of degree two, is derived in terms of the Lambert W-function. It is shown that this case of the general solution is dual-valued over a finite interval and that, for a special case of the coefficients, its zeros involve the Golden ratio. Additionally, a number of applications involving special cases of this ODE are noted and the main properties of the Lambert W-function are briefly reviewed. Published by Elsevier Inc.
C1 USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Jordan, PM (reprint author), USN, Res Lab, Code 7181, Stennis Space Ctr, MS 39529 USA.
EM pjordan@nrlssc.navy.mil
FU ONR [PE 061153N]
FX The author thanks Prof. K. R. Rajagopal and the anonymous referee for
their helpful comments and suggestions. This work was supported by ONR
funding (PE 061153N).
NR 14
TC 1
Z9 1
U1 1
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0096-3003
J9 APPL MATH COMPUT
JI Appl. Math. Comput.
PD SEP 15
PY 2010
VL 217
IS 2
BP 933
EP 936
DI 10.1016/j.amc.2010.05.095
PG 4
WC Mathematics, Applied
SC Mathematics
GA 640PG
UT WOS:000281063300056
ER
PT J
AU Zheng, X
Albrecht, B
Minnis, P
Ayers, K
Jonson, HH
AF Zheng, Xue
Albrecht, Bruce
Minnis, Patrick
Ayers, Kirk
Jonson, Haflidi H.
TI Observed aerosol and liquid water path relationships in marine
stratocumulus
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID CLOUDS
AB The stratocumulus-topped marine boundary layer (BL), aerosol, and cloud properties observed on research flights made off the coast of northern Chile in the Southeastern Pacific (20 degrees S, 72 degrees W) during the VAMOS Ocean-Cloud-Atmosphere-Land Study-Regional Experiment (VOCALS-REx) were used to examine the variation of liquid water path (LWP) and cloud condensation nuclei (CCN). Ten flights were made under similar meteorological conditions where the BL structure was well-mixed, clouds were solid, and the conditions at the surface and at the top of the BL were similar. A strong positive correlation between the LWP, which varied from 15 to 73 gm(-2), and the BL CCN, which ranged from 190 to 565 cm(-3), was observed. Analysis of the highest and the lowest CCN concentration cases confirms that the differences in the thermodynamic jumps at the top of the BL and the turbulent fluxes at the surface cannot explain the observed differences in the LWP. Cloud properties from satellite retrievals combined with a back trajectories analysis demonstrated that the LWP differences observed at the time of the aircraft flights are also prevalent during the night-time hours prior to the aircraft observations. These results provide evidence for CCN and LWP relationships that are not fully explained by current hypotheses from numerical modeling. Citation: Zheng, X., B. Albrecht, P. Minnis, K. Ayers, and H. Jonson (2010), Observed aerosol and liquid water path relationships in marine stratocumulus, Geophys. Res. Lett., 37, L17803, doi: 10.1029/2010GL044095.
C1 [Zheng, Xue; Albrecht, Bruce] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Div Meteorol & Phys Oceanog, Miami, FL 33149 USA.
[Minnis, Patrick; Ayers, Kirk] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Jonson, Haflidi H.] USN, Postgrad Sch, Monterey, CA 93933 USA.
RP Zheng, X (reprint author), Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Div Meteorol & Phys Oceanog, 4600 Rickenbacker Causeway, Miami, FL 33149 USA.
EM xzheng@rsmas.miami.edu
RI Minnis, Patrick/G-1902-2010; Zheng, Xue/F-9988-2016
OI Minnis, Patrick/0000-0002-4733-6148; Zheng, Xue/0000-0002-9372-1776
FU ONR [N000140810465]; Department of Energy [DE-A102-07ER64546]
FX We are grateful for the dedicated efforts of several individuals in
making the observations from the CIRPAS Twin Otter during VOCALS-REx.
Graham Feingold and Patrick Chuang provided key scientific input on the
observing strategies employed and interpretation of the initial results.
Shaunna Donaher, Dione Rossiter, and Virendra Ghate, provided critical
support as airborne scientists. Djamal Khelif kindly provided the high
temporal resolution observations for estimating turbulence quantities.
Pilots Mike Hubble and Chris McGuire skillfully executed the flight
plans and endured the long ferry of the Twin Otter aircraft to Iquique
Chile and back. This research was supported by ONR grant N000140810465.
Patrick Minnis and Kirk Ayers were supported by the Department of Energy
ARM Program through DE-A102-07ER64546.
NR 15
TC 5
Z9 5
U1 0
U2 3
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 SEP 15
PY 2010
VL 37
AR L17803
DI 10.1029/2010GL044095
PG 4
WC Geosciences, Multidisciplinary
SC Geology
GA 652MA
UT WOS:000282009600001
ER
PT J
AU Mohammad, SN
AF Mohammad, S. Noor
TI General hypothesis and shell model for the synthesis of semiconductor
nanotubes, including carbon nanotubes
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE adhesion; carbon nanotubes; nanofabrication; semiconductor growth;
semiconductor nanotubes
ID CHEMICAL-VAPOR-DEPOSITION; CATALYST PARTICLE-SIZE; BORON-NITRIDE
NANOTUBES; LIQUID-SOLID MECHANISM; GROWTH-MECHANISM; IN-SITU; MELTING
TEMPERATURE; METAL-CATALYSTS; CVD SYNTHESIS; LARGE-SCALE
AB Semiconductor nanotubes, including carbon nanotubes, have vast potential for new technology development. The fundamental physics and growth kinetics of these nanotubes are still obscured. Various models developed to elucidate the growth suffer from limited applicability. An in-depth investigation of the fundamentals of nanotube growth has, therefore, been carried out. For this investigation, various features of nanotube growth, and the role of the foreign element catalytic agent (FECA) in this growth, have been considered. Observed growth anomalies have been analyzed. Based on this analysis, a new shell model and a general hypothesis have been proposed for the growth. The essential element of the shell model is the seed generated from segregation during growth. The seed structure has been defined, and the formation of droplet from this seed has been described. A modified definition of the droplet exhibiting adhesive properties has also been presented. Various characteristics of the droplet, required for alignment and organization of atoms into tubular forms, have been discussed. Employing the shell model, plausible scenarios for the formation of carbon nanotubes, and the variation in the characteristics of these carbon nanotubes have been articulated. The experimental evidences, for example, for the formation of shell around a core, dipole characteristics of the seed, and the existence of nanopores in the seed, have been presented. They appear to justify the validity of the proposed model. The diversities of nanotube characteristics, fundamentals underlying the creation of bamboo-shaped carbon nanotubes, and the impurity generation on the surface of carbon nanotubes have been elucidated. The catalytic action of FECA on growth has been quantified. The applicability of the proposed model to the nanotube growth by a variety of mechanisms has been elaborated. These mechanisms include the vapor-liquid-solid mechanism, the oxide-assisted growth mechanism, the self-catalytic growth mechanism, and the vapor-quasiliquid-solid mechanism. The model appears to explain most, if not all, of the experimental findings reported to date on semiconductor nanotubes. It addresses various issues related to the uniqueness of the single-walled and multiwalled carbon nanotube growths; it explains why almost all carbon nanotubes are grown at a temperature between 800 and 1000 degrees C; and why metals, semiconductors, oxides, and clusters serve almost equally well as FECAs to achieve these growths. (C) 2010 American Institute of Physics. [doi:10.1063/1.3474650]
C1 [Mohammad, S. Noor] Sciencotech, Washington, DC 20001 USA.
[Mohammad, S. Noor] USN, Res Lab, Washington, DC 20375 USA.
RP Mohammad, SN (reprint author), Sciencotech, 780 Girard St NW, Washington, DC 20001 USA.
EM snmohammad2002@yahoo.com
NR 126
TC 8
Z9 8
U1 2
U2 11
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 SEP 15
PY 2010
VL 108
IS 6
AR 064323
DI 10.1063/1.3474650
PG 26
WC Physics, Applied
SC Physics
GA 660MD
UT WOS:000282646400146
ER
PT J
AU Walton, SG
Lock, EH
Ni, A
Baraket, M
Fernsler, RF
Pappas, DD
Strawhecker, KE
Bujanda, AA
AF Walton, S. G.
Lock, E. H.
Ni, A.
Baraket, M.
Fernsler, R. F.
Pappas, D. D.
Strawhecker, K. E.
Bujanda, A. A.
TI Study of Plasma-Polyethylene Interactions Using Electron Beam-Generated
Plasmas Produced in Ar/SF6 Mixtures
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE aging; functionalization of polymers; fluorination; polyethylene; cold
plasma
ID GLOW-DISCHARGE PLASMA; SURFACE FLUORINATION; POLYMERS; FILMS;
POLYSTYRENE; COMPOSITES; ADHESION; FIBERS; ENERGY
AB The use of electron beam-generated plasmas produced in Ar/SF6 mixtures to modify the surface of ultra-high molecular weight polyethylene substrates is discussed. Changes in the surface energy, chemistry, and morphology are presented as a function of plasma operating parameters, along with simple system diagnostics to obtain a better understanding of the plasma-polymer interaction. For all conditions, the hydrophobicity of the material was increased via the incorporation of fluorine, and for some conditions, the surface was found to remain stable over the course of 1 year. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 3515-3523, 2010
C1 [Walton, S. G.; Lock, E. H.; Ni, A.; Baraket, M.; Fernsler, R. F.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Ni, A.; Baraket, M.] Global Strategies Inc, Crofton, MD 21114 USA.
[Pappas, D. D.; Strawhecker, K. E.; Bujanda, A. A.] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
RP Walton, SG (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM scott.walton@nrl.navy.mil
FU Office of Naval Research; National Research Council; Army Research
Laboratory
FX Contract grant sponsor: Office of Naval Research and the Army Research
Laboratory and National Research Council.
NR 34
TC 13
Z9 13
U1 0
U2 11
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0021-8995
EI 1097-4628
J9 J APPL POLYM SCI
JI J. Appl. Polym. Sci.
PD SEP 15
PY 2010
VL 117
IS 6
BP 3515
EP 3523
DI 10.1002/app.32249
PG 9
WC Polymer Science
SC Polymer Science
GA 626HY
UT WOS:000279958200052
ER
PT J
AU Cambrea, LR
Davis, MC
Groshens, TJ
Guenthner, AJ
Lamison, KR
Mabry, JM
AF Cambrea, Lee R.
Davis, Matthew C.
Groshens, Thomas J.
Guenthner, Andrew J.
Lamison, Kevin R.
Mabry, Joseph M.
TI A New Room-Temperature Liquid, High-Performance Tricyanate Ester
SO JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
LA English
DT Article
DE cyclopolymerization; differential scanning calorimetry; high performance
polymers; thermosets
ID CYANATE ESTER; RESIN; ENAMINONES; 1,3,5-TRIAROYLBENZENES; COMPOSITES;
POLYMERS; SCALE
AB A new tricyanate ester monomer of a tris(4-hydroxyphenyl) benzene derivative was synthesized in 6-steps with a 63% overall yield. The geminal substitution of phenyl rings on ethane, in addition to the creation of a racemic/diastereomeric mixture, resulted in a liquid monomer whereas compounds with similar structure and symmetry have melting points typically over 100 degrees C. Key properties of the polycyanurate, such as the glass transition temperature and moisture resistance, were positively influenced by the higher crosslink density provided by the monomer. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 4547-4554, 2010
C1 [Cambrea, Lee R.; Davis, Matthew C.; Groshens, Thomas J.] USN, Air Warfare Ctr, Michelson Lab, Chem & Mat Div, China Lake, CA 93555 USA.
[Guenthner, Andrew J.; Lamison, Kevin R.; Mabry, Joseph M.] USAF, Res Lab, Prop Directorate, Edwards AFB, CA 93525 USA.
RP Davis, MC (reprint author), USN, Air Warfare Ctr, Michelson Lab, Chem & Mat Div, China Lake, CA 93555 USA.
EM matthew.davis@navy.mil
FU In-house Laboratory Independent Research award from the Office of Naval
Research; Air Force Office of Scientific Research
FX Financial support through an In-house Laboratory Independent Research
award from the Office of Naval Research, and funding from the Air Force
Office of Scientific Research, is gratefully acknowledged. Thanks to Dan
Bliss (NAWCWD) for assistance with thermogravimetric analyses.
NR 32
TC 13
Z9 13
U1 0
U2 5
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0887-624X
J9 J POLYM SCI POL CHEM
JI J. Polym. Sci. Pol. Chem.
PD SEP 15
PY 2010
VL 48
IS 20
BP 4547
EP 4554
DI 10.1002/pola.24246
PG 8
WC Polymer Science
SC Polymer Science
GA 662VE
UT WOS:000282841400021
ER
PT J
AU Wang, X
Hartley, DJ
Riley, MA
Riedinger, LL
Aguilar, A
Carpenter, MP
Chiara, CJ
Chowdhury, P
Darby, I
Garg, U
Ijaz, Q
Janssens, RVF
Kondev, FG
Lakshmi, S
Lauritsen, T
Ma, WC
McCutchan, EA
Mukhopadhyay, S
Seyfried, EP
Stefanescu, I
Tandel, SK
Tandel, US
Teal, C
Vanhoy, JR
Zhu, S
AF Wang, X.
Hartley, D. J.
Riley, M. A.
Riedinger, L. L.
Aguilar, A.
Carpenter, M. P.
Chiara, C. J.
Chowdhury, P.
Darby, I.
Garg, U.
Ijaz, Q.
Janssens, R. V. F.
Kondev, F. G.
Lakshmi, S.
Lauritsen, T.
Ma, W. C.
McCutchan, E. A.
Mukhopadhyay, S.
Seyfried, E. P.
Stefanescu, I.
Tandel, S. K.
Tandel, U. S.
Teal, C.
Vanhoy, J. R.
Zhu, S.
TI Multi-quasiparticle structures up to spin similar to 44h in the odd-odd
nucleus Ta-168
SO PHYSICAL REVIEW C
LA English
DT Article
ID RARE-EARTH NUCLEI; WOBBLING MODE; BAND; HF-167; SPECTROSCOPY;
EXCITATIONS; REGION
AB High-spin states in the odd-odd nucleus Ta-168 have been populated in the Sn-120(V-51, 3n) reaction. Two multi-quasiparticle structures have been extended significantly from spin similar to 20h to above 40h. As a result, the first rotational alignment has been fully delineated and a second band crossing has been observed for the first time in this nucleus. Configurations for these strongly coupled rotational bands are proposed based on signature splitting, B(M1)/ B(E2) ratio information, and observed rotation-alignment behavior. Properties of the observed bands in 168Ta are compared to related structures in the neighboring odd-Z, odd-N, and odd-odd nuclei and are discussed within the framework of the cranked shell model.
C1 [Wang, X.; Riley, M. A.; Aguilar, A.; Teal, C.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Hartley, D. J.; Seyfried, E. P.; Vanhoy, J. R.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Riedinger, L. L.; Darby, I.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; McCutchan, E. A.; Stefanescu, I.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Chiara, C. J.; Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Chowdhury, P.; Lakshmi, S.; Tandel, S. K.; Tandel, U. S.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
[Garg, U.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Ijaz, Q.; Ma, W. C.; Mukhopadhyay, S.] Mississippi State Univ, Dept Phys, Mississippi State, MS 39762 USA.
[Stefanescu, I.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
RP Wang, X (reprint author), Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
RI Soundara Pandian, Lakshmi/C-8107-2013; Carpenter, Michael/E-4287-2015
OI Soundara Pandian, Lakshmi/0000-0003-3099-1039; Carpenter,
Michael/0000-0002-3237-5734
FU US National Science Foundation [PHY-0554762, PHY-0456463, PHY-0754674];
US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357,
DE-FG02-94ER40848, DE-FG02-96ER40983]; State of Florida
FX The authors gratefully acknowledge J. P. Greene for the preparation of
the targets and the ATLAS operations staff for providing the
high-quality beam. We also thank D. C. Radford and H. Q. Jin for their
software support. This work has been supported in part by the US
National Science Foundation under Grants No. PHY-0554762 (USNA), No.
PHY-0456463 (FSU), and No. PHY-0754674 (UND); the US Department of
Energy, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357
(ANL), No. DE-FG02-94ER40848 (UML), and No. DE-FG02-96ER40983 (UTK); and
the State of Florida.
NR 34
TC 4
Z9 4
U1 2
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
J9 PHYS REV C
JI Phys. Rev. C
PD SEP 15
PY 2010
VL 82
IS 3
AR 034315
DI 10.1103/PhysRevC.82.034315
PG 9
WC Physics, Nuclear
SC Physics
GA 650JI
UT WOS:000281844700001
ER
PT J
AU Huba, JD
Joyce, G
AF Huba, J. D.
Joyce, G.
TI Global modeling of equatorial plasma bubbles
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID SPREAD-F; IRREGULARITIES; IONOSPHERE; SIMULATION; WINDS
AB The NRL three-dimensional ionospheric simulation code SAMI3 is used to model the onset and evolution of equatorial spread F (ESF). SAMI3 is a comprehensive ionosphere model that has been modified to self-consistently solve for the global neutral wind driven dynamo electric field as well as the gravity driven electric field associated with plasma bubbles. The latter is achieved with a high resolution longitudinal grid in the pre- to post-sunset sector (i.e., 1630 MLT-2230 MLT). Initial results from the new simulation model are presented. It is shown that ESF can be triggered by pre-sunset ionospheric density perturbations, and that an existing ESF bubble can trigger a new bubble. Citation: Huba, J. D., and G. Joyce (2010), Global modeling of equatorial plasma bubbles, Geophys. Res. Lett., 37, L17104, doi: 10.1029/2010GL044281.
C1 [Huba, J. D.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Joyce, G.] Icarus Res Inc, Bethesda, MD 20814 USA.
RP Huba, JD (reprint author), USN, Res Lab, Div Plasma Phys, Code 6790, Washington, DC 20375 USA.
EM huba@ppd.nrl.navy.mil
FU ONR; NASA
FX We thank J. Krall and S. L. Ossakow for a critical reading of the
manuscript. This research has been supported by the ONR and NASA.
NR 24
TC 25
Z9 25
U1 0
U2 2
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD SEP 14
PY 2010
VL 37
AR L17104
DI 10.1029/2010GL044281
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 652LY
UT WOS:000282009400001
ER
PT J
AU Lee, Z
Shang, SL
Hu, CM
Lewis, M
Arnone, R
Li, YH
Lubac, B
AF Lee, ZhongPing
Shang, Shaoling
Hu, Chuanmin
Lewis, Marlon
Arnone, Robert
Li, Yonghong
Lubac, Bertrand
TI Time series of bio-optical properties in a subtropical gyre:
Implications for the evaluation of interannual trends of biogeochemical
properties
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID INHERENT OPTICAL-PROPERTIES; DISSOLVED ORGANIC-MATTER; REMOTE-SENSING
REFLECTANCE; CLEAREST NATURAL-WATERS; OCEAN-COLOR; RAMAN-SCATTERING;
DIFFUSE-REFLECTANCE; LEAVING RADIANCE; YELLOW SUBSTANCE; CHLOROPHYLL-A
AB With a validated Quasi-Analytical Algorithm, an 11 year (1998-2008) monthly time series of the primary optical properties of waters in the center of the South Pacific gyre was developed from Sea-viewing Wide Field-of-view Sensor (SeaWiFS) and Moderate Resolution Imaging Spectroradiometer (MODIS). Also derived are chlorophyll a (Chl a) concentrations with the operational empirical algorithms for SeaWiFS and MODIS. The optical properties include the absorption coefficient (at 443 nm) of phytoplankton (aph) and that of the combination of detritus and gelbstoff (adg). From these time series, we further derived their annual background (summer low) and seasonal intensity (the difference between winter high and summer low). These time series show that (1) the optical properties have different seasonal and interannual variations, indicating different dynamics of these properties in the subtropical gyre; (2) there is a decreasing trend (r(2) = 0.24) of the background aph in the 1998-2008 period and an increasing trend of the aph seasonal intensity (r(2) = 0.11) for this period, and both trends are not statistically significant; (3) the aph time series agrees with the Chl a time series at the seasonal scale, but differs with respect to interannual variations; and (4) different interannual trends could be inferred with different time frames. These results emphasize that it is difficult to draw unequivocal conclusions about long-term trends of biogeochemical properties in the oceans with the current relatively short bio-optical records. To clarify and predict such trends, it is critical to get a full account of the forces that are responsible for the seasonal and interannual variations of these properties.
C1 [Lee, ZhongPing] Mississippi State Univ, Geosyst Res Inst, John C Stennis Space Ctr, MS 39529 USA.
[Hu, Chuanmin] Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA.
[Lewis, Marlon] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada.
[Shang, Shaoling; Li, Yonghong] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China.
[Arnone, Robert; Lubac, Bertrand] USN, Res Lab, John C Stennis Space Ctr, MS 39529 USA.
RP Lee, Z (reprint author), Mississippi State Univ, Geosyst Res Inst, John C Stennis Space Ctr, MS 39529 USA.
EM zplee@ngi.msstate.edu
RI Shang, SL/G-3405-2010; hu, chuanmin/J-5021-2012
FU NASA; Naval Research Laboratory; U.S. Office of Naval Research; Canadian
Natural Sciences and Engineering Research Council; National High-Tech
Research and Development Programme of China [2006AA09A302,
2008AA09Z108]; NSF-China [40821063]
FX The authors are grateful for the financial support provided by NASA's
Ocean Biology and Biogeochemistry Program (Lee, Hu, Lewis), the Naval
Research Laboratory (Lee, Arnone), the U.S. Office of Naval Research
(Lewis), the Canadian Natural Sciences and Engineering Research Council
(Lewis), the National High-Tech Research and Development Programme of
China (2006AA09A302, 2008AA09Z108), and the NSF-China (40821063; Shang).
We would like to thank Yannick Huot for discussions related to ocean
color inversion and Charles McClain for encouraging comments on an
earlier version of the manuscript. Comments and suggestions from two
anonymous reviewers greatly improved this manuscript.
NR 73
TC 14
Z9 14
U1 2
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD SEP 14
PY 2010
VL 115
AR C09012
DI 10.1029/2009JC005865
PG 13
WC Oceanography
SC Oceanography
GA 652NJ
UT WOS:000282013400003
ER
PT J
AU Kim, ED
Truex, K
Wu, YW
Amo, A
Xu, XD
Steel, DG
Bracker, AS
Gammon, D
Sham, LJ
AF Kim, Erik D.
Truex, Katherine
Wu, Yanwen
Amo, A.
Xu, Xiaodong
Steel, D. G.
Bracker, A. S.
Gammon, D.
Sham, L. J.
TI Picosecond optical spectroscopy of a single negatively charged
self-assembled InAs quantum dot
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SEMICONDUCTOR; SPIN
AB We demonstrate an experimental technique for the transient read-out of the optical transitions in a single negatively charged self-assembled InAs quantum dot (QD) using resonant picosecond optical pulses and control of the QD charge state. Observable phenomena include trion (negatively charged exciton) decay, Rabi oscillations between the electron and trion states and the precession of electron and heavy-hole spins about an externally applied dc magnetic field. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3487783]
C1 [Kim, Erik D.; Truex, Katherine; Wu, Yanwen; Amo, A.; Xu, Xiaodong; Steel, D. G.] Stanford Univ, Stanford, CA 94305 USA.
[Bracker, A. S.; Gammon, D.] USN, Res Lab, Washington, DC 20375 USA.
[Sham, L. J.] Univ Calif San Diego, Dept Phys, San Diego, CA 92093 USA.
RP Kim, ED (reprint author), Stanford Univ, Stanford, CA 94305 USA.
EM dst@umich.edu
RI Truex, Katherine/E-2973-2010;
OI Truex, Katherine/0000-0001-8219-2672; Sham, Lu/0000-0001-5718-2077
FU ARO (IARPA) [W911NF-08-1-0487]; AFOSR [FA9550-09-1-0457]; ONR (NSA);
DARPA [W911NF-09-1-0406]; NSF [PHY 0114336, PHY 0804114]
FX This work was supported in part by ARO (IARPA, W911NF-08-1-0487), AFOSR
(FA9550-09-1-0457), ONR (NSA), DARPA (W911NF-09-1-0406), and NSF (PHY
0114336 and PHY 0804114).
NR 14
TC 10
Z9 10
U1 0
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD SEP 13
PY 2010
VL 97
IS 11
AR 113110
DI 10.1063/1.3487783
PG 3
WC Physics, Applied
SC Physics
GA 652TN
UT WOS:000282032900070
ER
PT J
AU Lin, YM
Dimitrakopoulos, C
Farmer, DB
Han, SJ
Wu, YQ
Zhu, WJ
Gaskill, DK
Tedesco, JL
Myers-Ward, RL
Eddy, CR
Grill, A
Avouris, P
AF Lin, Yu-Ming
Dimitrakopoulos, Christos
Farmer, Damon B.
Han, Shu-Jen
Wu, Yanqing
Zhu, Wenjuan
Gaskill, D. Kurt
Tedesco, Joseph L.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Grill, Alfred
Avouris, Phaedon
TI Multicarrier transport in epitaxial multilayer graphene
SO APPLIED PHYSICS LETTERS
LA English
DT Article
DE carrier mobility; doping; epitaxial layers; graphene; Hall effect
ID SILICON-CARBIDE; SI-FACE; TRANSISTORS; GROWTH
AB Variable-field Hall measurements were performed on epitaxial graphene grown on Si-face and C-face SiC. The carrier transport involves essentially a single-type of carrier in few-layer graphene, regardless of SiC face. However, in multilayer graphene (MLG) grown on C-face SiC, the Hall measurements indicated the existence of several groups of carriers with distinct mobilities. Electrical transport in MLG can be properly described by invoking three independent conduction channels in parallel. Two of these are n- and p-type, while the third involves nearly intrinsic graphene. The carriers in this lightly doped channel have significantly higher mobilities than the other two. (c) 2010 American Institute of Physics. [doi:10.1063/1.3485671]
C1 [Lin, Yu-Ming; Dimitrakopoulos, Christos; Farmer, Damon B.; Han, Shu-Jen; Wu, Yanqing; Zhu, Wenjuan; Grill, Alfred; Avouris, Phaedon] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA.
[Gaskill, D. Kurt; Tedesco, Joseph L.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.] USN, Res Lab, Adv SiC Epitaxial Res Lab, Washington, DC 20375 USA.
RP Lin, YM (reprint author), IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, Yorktown Hts, NY 10598 USA.
EM yming@us.ibm.com
RI WU, Yanqing/C-9737-2009
FU DARPA [FA8650-08-C-7838]; Office of Naval Research
FX The authors would like to thank V. Perebeinos, C. Y. Sung, Y. Sun, and
F. Xia for insightful discussions, M. Freitag for Raman
characterization, and B. Ek and J. Bucchignano for the expert technical
assistance. J. L. Tedesco is grateful for postdoctoral support from
ASEE. This work is supported by DARPA under Contract No.
FA8650-08-C-7838 through the CERA program and by the Office of Naval
Research.
NR 16
TC 35
Z9 35
U1 5
U2 38
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 SEP 13
PY 2010
VL 97
IS 11
AR 112107
DI 10.1063/1.3485671
PG 3
WC Physics, Applied
SC Physics
GA 652TN
UT WOS:000282032900037
ER
PT J
AU Martin, TP
Nicholas, M
Orris, GJ
Cai, LW
Torrent, D
Sanchez-Dehesa, J
AF Martin, Theodore P.
Nicholas, Michael
Orris, Gregory J.
Cai, Liang-Wu
Torrent, Daniel
Sanchez-Dehesa, Jose
TI Sonic gradient index lens for aqueous applications
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB We study the acoustic scattering properties of a phononic crystal designed to behave as a gradient index lens in water, both experimentally and theoretically. The gradient index lens is designed using a square lattice of stainless-steel cylinders based on a multiple scattering approach in the homogenization limit. We experimentally demonstrate that the lens follows the graded index equations derived for optics by mapping the pressure intensity generated from a spherical source at 20 kHz. We find good agreement between the experimental result and theoretical modeling based on multiple scattering theory. (C) 2010 American Institute of Physics. [doi:10.1063/1.3489373]
C1 [Martin, Theodore P.; Nicholas, Michael; Orris, Gregory J.] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
[Cai, Liang-Wu] Kansas State Univ, Dept Mech & Nucl Engn, Manhattan, KS 66506 USA.
[Torrent, Daniel; Sanchez-Dehesa, Jose] Univ Politecn Valencia, Wave Phenomena Grp, Dept Elect Engn, E-46022 Valencia, Spain.
RP Martin, TP (reprint author), USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
EM ted.martin.ctr@nrl.navy.mil
RI Torrent, Daniel/K-1903-2012; sanchez-dehesa, jose/L-9726-2014; Martin,
Theodore/H-1287-2016;
OI Torrent, Daniel/0000-0001-7092-7360; Sanchez-Dehesa,
Jose/0000-0003-0742-4407
FU U.S. Office of Naval Research; Program Campus de Excelencia
Internacional 2010 UPV
FX This work was supported by the U.S. Office of Naval Research. Daniel
Torrent also acknowledges the contract provided by the program Campus de
Excelencia Internacional 2010 UPV.
NR 14
TC 63
Z9 64
U1 3
U2 31
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 SEP 13
PY 2010
VL 97
IS 11
AR 113503
DI 10.1063/1.3489373
PG 3
WC Physics, Applied
SC Physics
GA 652TN
UT WOS:000282032900076
ER
PT J
AU Curry, JA
Riddle, MS
Gormley, RP
Tribble, DR
Porter, CK
AF Curry, Jennifer A.
Riddle, Mark S.
Gormley, Robert P.
Tribble, David R.
Porter, Chad K.
TI The epidemiology of infectious gastroenteritis related reactive
arthritis in US military personnel: a case-control study
SO BMC INFECTIOUS DISEASES
LA English
DT Article
ID CLOSTRIDIUM-DIFFICILE; REITERS-SYNDROME; FOLLOW-UP; CAMPYLOBACTER
ENTERITIS; OUTBREAK; DIARRHEA; DISEASE; SALMONELLA; SYMPTOMS;
SURVEILLANCE
AB Background: Reactive arthritis (ReA) is a recognized sequela of infectious gastroenteritis (IGE). However, the population-based incidence of IGE-related ReA is poorly defined, and the risk of disease has not previously been characterized in a military population. The intent of this study was to provide estimates of the incidence and morbidity associated with IGE-related ReA in the U.S. military population.
Methods: Using active duty US military medical encounter data from the Defense Medical Surveillance System, we conducted a matched case-control study to assess the risk of ReA following IGE. Both specific and nonspecific case definitions were utilized to address ICD-9 coding limitations; these included specific ReA (Reiter's Disease or postdysenteric arthritis) and nonspecific arthritis/arthralgia (N.A.A) (which included several related arthropathy and arthralgia diagnoses). Incidence was estimated using events and the total number of active duty personnel for each year.
Results: 506 cases of specific ReA were identified in active duty personnel between 1999 and 2007. Another 16,365 cases of N.A.A. were identified. Overall incidence was 4.1 (95% CI: 3.7, 4.5) and 132.0 (95% CI, 130.0-134.0) per 100,000 for specific ReA and N.A.A, respectively. Compared to the youngest age category, the incidence of both outcomes increased 7-fold with a concurrent increase in symptom duration for cases over the age of 40. Specific IGE exposures were documented in 1.4% of subjects. After adjusting for potential confounders, there was a significant association between IGE and ReA (specific reactive arthritis OR: 4.42, 95% CI: 2.24, 8.73; N.A.A OR: 1.76, 95% CI: 1.49, 2.07).
Conclusions: Reactive arthritis may be more common in military populations than previously described. The burden of ReA and strong association with antecedent IGE warrants continued IGE prevention efforts.
C1 [Riddle, Mark S.; Gormley, Robert P.; Porter, Chad K.] USN, Med Res Ctr, Silver Spring, MD USA.
[Curry, Jennifer A.; Tribble, David R.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Porter, CK (reprint author), USN, Med Res Ctr, Silver Spring, MD USA.
EM chad.porter@med.navy.mil
RI Riddle, Mark/A-8029-2011
NR 51
TC 9
Z9 9
U1 0
U2 1
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2334
J9 BMC INFECT DIS
JI BMC Infect. Dis.
PD SEP 13
PY 2010
VL 10
AR 266
DI 10.1186/1471-2334-10-266
PG 9
WC Infectious Diseases
SC Infectious Diseases
GA 666UY
UT WOS:000283148300001
PM 20836849
ER
PT J
AU Brooks, DH
Warren, HP
Winebarger, AR
AF Brooks, David H.
Warren, Harry P.
Winebarger, Amy R.
TI CHARACTERISTICS AND EVOLUTION OF THE MAGNETIC FIELD AND CHROMOSPHERIC
EMISSION IN AN ACTIVE REGION CORE OBSERVED BY HINODE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: activity; Sun: chromosphere; Sun: corona; Sun: magnetic topology;
Sun: photosphere
ID ULTRAVIOLET IMAGING SPECTROMETER; SOLAR OPTICAL TELESCOPE; SOFT-X-RAY;
TRANSITION-REGION; EXTREME-ULTRAVIOLET; CORONAL-EXPLORER; TRANSIENT
BRIGHTENINGS; ARCSECOND SCALES; ATOMIC DATABASE; SOHO MISSION
AB We describe the characteristics and evolution of the magnetic field and chromospheric emission in an active region core observed by the Solar Optical Telescope (SOT) on Hinode. Consistent with previous studies, we find that the moss is unipolar, the spatial distribution of magnetic flux evolves slowly, and that the magnetic field is only moderately inclined. We also show that the field-line inclination and horizontal component are coherent, and that the magnetic field is mostly sheared in the inter-moss regions where the highest magnetic flux variability is seen. Using extrapolations from spectropolarimeter magnetograms, we show that the magnetic connectivity in the moss is different from that in the quiet Sun because most of the magnetic field extends to significant coronal heights. The magnetic flux, field vector, and chromospheric emission in the moss also appear highly dynamic but actually show only small-scale variations in magnitude on timescales longer than the cooling times for hydrodynamic loops computed from our extrapolations, suggesting high-frequency (continuous) heating events. Some evidence is found for flux (Ca II intensity) changes on the order of 100-200 G (DN) on timescales of 20-30 minutes that could be taken as indicative of low-frequency heating. We find, however, that only a small fraction (10%) of our simulated loops would be expected to cool on these timescales, and we do not find clear evidence that the flux changes consistently produce intensity changes in the chromosphere. Using observations from the EUV Imaging Spectrometer (EIS), we also determine that the filling factor in the moss is similar to 16%, consistent with previous studies and larger than the size of an SOT pixel. The magnetic flux and chromospheric intensity in most individual SOT pixels in the moss vary by less than similar to 20% and similar to 10%, respectively, on loop cooling timescales. In view of the high energy requirements of the chromosphere, we suggest that these variations could be sufficient for the heating of "warm" EUV loops, but that the high basal levels may be more important for powering the hot core loops rooted in the moss. The magnetic field and chromospheric emission appear to evolve gradually on spatial scales comparable to the cross-field scale of the fundamental coronal structures inferred from EIS measurements.
C1 [Brooks, David H.] George Mason Univ, Fairfax, VA 22020 USA.
[Brooks, David H.; Warren, Harry P.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Winebarger, Amy R.] Alabama A&M Univ, Dept Phys, Normal, AL 35762 USA.
RP Brooks, DH (reprint author), ISAS JAXA, Hinode Team, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan.
EM dhbrooks@ssd5.nrl.navy.mil
FU JAXA and NAOJ (Japan); STFC (UK); NASA; ESA; NSC (Norway)
FX We thank Jim Klimchuk, Saku Tsuneta, Tom Berger, and Alfred de Wijn for
very helpful discussions. D.H.B. and H.P.W. acknowledge funding support
from the NASA Hinode program. The EIT images are courtesy of the SOHO
EIT Consortium. SOHO is a mission of international cooperation between
ESA and NASA. The TRACE images are courtesy of the TRACE Consortium.
Hinode SOT/SP Inversions were conducted at NCAR under the framework of
the Community Spectro-polarimetric Analysis Center (CSAC;
http://www.csac.hao.ucar.edu/). CHIANTI is a collaborative project
involving researchers at NRL (USA), RAL (UK), and the Universities of:
Cambridge (UK), George Mason (USA), and Florence (Italy). Hinode is a
Japanese mission developed and launched by ISAS/JAXA, collaborating with
NAOJ as a domestic partner, NASA and STFC (UK) as international
partners. Scientific operation of the Hinode mission is conducted by the
Hinode science team organized at ISAS/JAXA. This team mainly consists of
scientists from institutes in the partner countries. Support for the
post-launch operation is provided by JAXA and NAOJ (Japan), STFC (UK),
NASA, ESA, and NSC (Norway).
NR 60
TC 1
Z9 1
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 SEP 10
PY 2010
VL 720
IS 2
BP 1380
EP 1394
DI 10.1088/0004-637X/720/2/1380
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 647ND
UT WOS:000281624300039
ER
PT J
AU Sun, HY
Lu, JF
Liu, L
Yi, H
Qiu, S
Yang, CY
Deschamps, JR
Wang, SM
AF Sun, Haiying
Lu, Jianfeng
Liu, Liu
Yi, Han
Qiu, Su
Yang, Chao-Yie
Deschamps, Jeffrey R.
Wang, Shaomeng
TI Nonpeptidic and Potent Small-Molecule Inhibitors of cIAP-1/2 and XIAP
Proteins
SO JOURNAL OF MEDICINAL CHEMISTRY
LA English
DT Article
ID STRUCTURE-BASED DESIGN; MITOCHONDRIA-DERIVED ACTIVATOR; ALPHA-DEPENDENT
APOPTOSIS; X-LINKED INHIBITOR; STRUCTURAL BASIS; IAP PROTEINS; BIR3
DOMAIN; CASPASE; MIMETICS; SMAC/DIABLO
AB A series of compounds were designed and synthesized as antagonists of cIAP-1/2 and XIAP based upon our previously identified lead compound SM-122 (1). The most potent of these (7) binds to XIAP, cIAP-1, and cIAP-2 proteins with K(i) values of 36, <1, and <1.9 nM, respectively. Consistent with its potent binding affinities to IAPs, 7 effectively antagonizes XIAP in a cell-free caspase-9 functional assay, efficiently induces cIAP-1 degradation in cells at concentrations as low as 10 nM, and triggers activation of caspases and PARP cleavage in the MDA-MB-231 breast cancer cell line. Compound 7 potently inhibits cell growth in the MDA-MB-231 cancer cell line with an IC(50) value of 200 nM and is 9 times more potent than compound 1.
C1 [Sun, Haiying; Lu, Jianfeng; Liu, Liu; Yi, Han; Qiu, Su; Yang, Chao-Yie; Wang, Shaomeng] Univ Michigan, Ctr Comprehens Canc, Ann Arbor, MI 48109 USA.
[Sun, Haiying; Lu, Jianfeng; Liu, Liu; Yi, Han; Qiu, Su; Yang, Chao-Yie; Wang, Shaomeng] Univ Michigan, Dept Internal Med, Ann Arbor, MI 48109 USA.
[Sun, Haiying; Lu, Jianfeng; Liu, Liu; Yi, Han; Qiu, Su; Yang, Chao-Yie; Wang, Shaomeng] Univ Michigan, Dept Pharmacol, Ann Arbor, MI 48109 USA.
[Sun, Haiying; Lu, Jianfeng; Liu, Liu; Yi, Han; Qiu, Su; Yang, Chao-Yie; Wang, Shaomeng] Univ Michigan, Dept Med Chem, Ann Arbor, MI 48109 USA.
[Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
RP Wang, SM (reprint author), Univ Michigan, Ctr Comprehens Canc, 1500 E Med Ctr Dr, Ann Arbor, MI 48109 USA.
EM shaomeng@umich.edu
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU National Cancer Institute, National Institutes of Health [R01CA109025];
Breast Cancer Research Foundation; Susan G. Komen Foundation; University
of Michigan Cancer Center [P30CA046592]
FX We are grateful for financial support from the National Cancer
Institute, National Institutes of Health (Grant R01CA109025), the Breast
Cancer Research Foundation, the Susan G. Komen Foundation, and the
University of Michigan Cancer Center (Grant P30CA046592).
NR 27
TC 19
Z9 19
U1 0
U2 15
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0022-2623
J9 J MED CHEM
JI J. Med. Chem.
PD SEP 9
PY 2010
VL 53
IS 17
BP 6361
EP 6367
DI 10.1021/jm100487z
PG 7
WC Chemistry, Medicinal
SC Pharmacology & Pharmacy
GA 644TM
UT WOS:000281404200009
PM 20684551
ER
PT J
AU Alldredge, ES
Badescu, SC
Bajwa, N
Perkins, FK
Snow, ES
Reinecke, TL
AF Alldredge, E. S.
Badescu, S. C.
Bajwa, N.
Perkins, F. K.
Snow, E. S.
Reinecke, T. L.
TI Adsorption of nitro-substituted aromatics on single-walled carbon
nanotubes
SO PHYSICAL REVIEW B
LA English
DT Article
ID DENSITY FUNCTIONALS; CHEMICAL-DETECTION; GRAPHENE; SENSORS
AB Molecular adsorption of nitroaromatic molecules on single-walled carbon nanotubes (NTs) was investigated using state-of-the-art ab initio calculations and conductivity measurements. In the calculations we considered both armchair and zigzag NTs of several diameters and treated adsorption both on pristine sidewalls and oxygenated defects. The resulting adsorption energies on the pristine sidewalls were found to increase linearly with the number of NO(2) groups and with the NT diameter. The adsorption mechanism is predominantly physisorption through pi-pi stacking, with additional contributions from the NO(2) groups. The calculated adsorption energies at oxygenated defects were found to be comparable with those on the pristine sidewall. In both cases the functional groups give rise to local electronic polarization and to shifts in vibrational lines due to small charge transfers. The dependence of adsorption energies on the number of NO(2) groups was found to be consistent with conductivity measurements on NT arrays exposed to trace amounts of nitroaromatic derivatives.
C1 [Alldredge, E. S.; Badescu, S. C.; Bajwa, N.; Perkins, F. K.; Snow, E. S.; Reinecke, T. L.] USN, Res Lab, Washington, DC 20375 USA.
RP Badescu, SC (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM stefan.badescu@nrl.navy.mil
FU ONR; DTRA
FX This work was supported in part by ONR and DTRA. E.S.A. was a NRC
Research Associate, and N.B. was an ASEE Research Associate. We
acknowledge the support of the DoD High Performance Computing system for
the calculations and also useful discussions with Victor M. Bermudez.
NR 28
TC 12
Z9 12
U1 0
U2 29
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD SEP 9
PY 2010
VL 82
IS 12
AR 125418
DI 10.1103/PhysRevB.82.125418
PG 8
WC Physics, Condensed Matter
SC Physics
GA 647ZD
UT WOS:000281658500014
ER
PT J
AU Gao, CX
Brandt, O
Erwin, SC
Lahnemann, J
Jahn, U
Jenichen, B
Schonherr, HP
AF Gao, Cunxu
Brandt, Oliver
Erwin, Steven C.
Laehnemann, Jonas
Jahn, Uwe
Jenichen, Bernd
Schoenherr, Hans-Peter
TI "Cube-on-hexagon" orientation relationship for Fe on
GaN(000(1)over-bar): The missing link in bcc/hcp epitaxy
SO PHYSICAL REVIEW B
LA English
DT Article
ID THIN-FILMS; GROWTH; CRYSTALLOGRAPHY; RECONSTRUCTIONS; MARTENSITE;
TRANSITION; MORPHOLOGY; METEORITE; GAN(0001); SURFACES
AB We investigate, experimentally and theoretically, the epitaxy of body-centered-cubic Fe on hexagonal GaN. For growth on the Ga-polar GaN(0001) surface we find the well-known Pitsch-Schrader orientation relationship between Fe and GaN. On the N-polar GaN(000 (1) over bar) surface we observe coexistence between the familiar Burgers orientation and a new orientation in which the Fe(001) plane is parallel to GaN(000 (1) over bar). This "cube-on-hexagon" orientation constitutes the high-symmetry link required for constructing a symmetry diagram for bcc/hcp systems in which all orientation relationships are connected by simple rotations.
C1 [Gao, Cunxu; Brandt, Oliver; Laehnemann, Jonas; Jahn, Uwe; Jenichen, Bernd; Schoenherr, Hans-Peter] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany.
[Erwin, Steven C.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Gao, CX (reprint author), Paul Drude Inst Festkorperelekt, Hausvogteipl 5-7, D-10117 Berlin, Germany.
EM gaocunx@pdi-berlin.de
RI Gao, Cunxu/D-6688-2011; Lahnemann, Jonas/L-3589-2013; Brandt,
Oliver/A-9438-2014
OI Lahnemann, Jonas/0000-0003-4072-2369; Brandt, Oliver/0000-0002-9503-5729
FU U.S. Office of Naval Research; DoD Major Shared Resource Center at AFRL
FX We thank Jens Herfort and Achim Trampert for critically reading the
manuscript. This work was supported in part by the U.S. Office of Naval
Research. Computations were performed at the DoD Major Shared Resource
Center at AFRL.
NR 30
TC 7
Z9 7
U1 2
U2 11
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD SEP 9
PY 2010
VL 82
IS 12
AR 125415
DI 10.1103/PhysRevB.82.125415
PG 5
WC Physics, Condensed Matter
SC Physics
GA 647ZD
UT WOS:000281658500011
ER
PT J
AU Long, JP
Flynn, RA
Vurgaftman, I
Simpkins, BS
Makinen, AJ
Mastro, MA
Pehrsson, PE
AF Long, J. P.
Flynn, R. A.
Vurgaftman, I.
Simpkins, B. S.
Maekinen, A. J.
Mastro, M. A.
Pehrsson, P. E.
TI Transverse-microcavity modulation of photoluminescence from GaN
nanowires
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID ZNO NANOWIRE; WAVE-GUIDES; LASERS; CAVITY; MODES
AB Spatially resolved photoluminescence (PL) spectra from tapered GaN nanowires (NWs) with triangular cross section exhibit marked intensity modulations along the NW length. The modulation periodicity is attributed to previously unrecognized, leaky transverse standing-waves that occur when the PL wavelength matches path length criteria. These Fabry-Perot modes can affect optical measurements in transparent nanostructures even for dimensions less than similar to lambda/2n, where lambda is the free-space wavelength and n is the index of refraction. [doi: 10.1063/1.3488018]
C1 [Long, J. P.; Flynn, R. A.; Vurgaftman, I.; Simpkins, B. S.; Maekinen, A. J.; Mastro, M. A.; Pehrsson, P. E.] USN, Res Lab, Washington, DC 20375 USA.
RP Long, JP (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM jp.long@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. One of us
(R.A.F.) held a National Research Council Research associateship during
this research.
NR 29
TC 3
Z9 3
U1 1
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 SEP 6
PY 2010
VL 97
IS 10
AR 103105
DI 10.1063/1.3488018
PG 3
WC Physics, Applied
SC Physics
GA 658GP
UT WOS:000282478800041
ER
PT J
AU Heuer, WB
Xia, HL
Abrahamsson, M
Zhou, Z
Ardo, S
Sarjeant, AAN
Meyer, GJ
AF Heuer, William B.
Xia, Hai-Long
Abrahamsson, Maria
Zhou, Zhen
Ardo, Shane
Sarjeant, Amy A. Narducci
Meyer, Gerald J.
TI Reaction of Ru-II Diazafluorenone Compound with Nanocrystalline TiO2
Thin Film
SO INORGANIC CHEMISTRY
LA English
DT Article
ID SENSITIZED SOLAR-CELLS; EXCITED-STATES; ELECTRON-TRANSFER; METAL-OXIDES;
SOLID-STATE; COMPLEXES; LIGAND; SPECTROSCOPY; SURFACES; ACID
AB The Ru(II) compounds [Ru(bpy)(2)(mcbH)](2+) and [Ru(bpy)(2)(dafo)](2+), bpy is 2,2'-bipyridine where mcbH is 3-(CO2H)-2,2'-bipyridine and dafo is 4,5-diazafluoren-9-one, were synthesized, characterized, and anchored to nanocrystalline mesoporous TiO2 thin films for excited state and interfacial electron transfer studies. X-ray crystallographic studies of [Ru(bpy)(2)(mcbH)](PF6)(Cl) revealed a long Ru-N distance to the unsubstituted pyridine ligand of mcbH. Reaction of [Ru(bpy)(2)(dafo)](2+) with TiO2 thin films resulted in interfacial chemistry. The IR, H-1 NMR, UV-vis, and photoluminescence spectral data indicated a room-temperature ring-opening reaction of the dafo ligand of [Ru(bpy)2(dafo)](2+) that ultimately yielded a carboxylate group in the 3-position of bipyridine anchored to TiO2. Comparative reactions of [Ru(bpy)(2)(mcbH)](2+) with TiO2 were performed and support this conclusion. In regenerative photoelectrochemical solar cells with 0.5 M Lil/0.05 MI2 in acetonitrile, photocurrent action spectra were observed for both sensitized materials. The incident photon-to-current efficiency (IPCE) was significantly lower for Ru(bpy)(2)(dafo)/TiO2, behavior attributed to a lower excited-state injection yield.
C1 [Heuer, William B.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[Xia, Hai-Long; Abrahamsson, Maria; Zhou, Zhen; Ardo, Shane; Sarjeant, Amy A. Narducci; Meyer, Gerald J.] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA.
[Xia, Hai-Long; Abrahamsson, Maria; Zhou, Zhen; Ardo, Shane; Sarjeant, Amy A. Narducci; Meyer, Gerald J.] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA.
[Zhou, Zhen] Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
RP Heuer, WB (reprint author), USN Acad, Dept Chem, Annapolis, MD 21402 USA.
EM heuer@usna.edu; meyer@jhu.edu
RI Abrahamsson, Maria/A-2487-2011
OI Abrahamsson, Maria/0000-0002-6931-1128
FU National Science Foundation; Swedish Research Council [623-2007-1038];
Naval Academy Research Council
FX The National Science Foundation is gratefully acknowledged for research
support. M.A. thanks the Swedish Research Council for a personal
postdoctoral research Grant 623-2007-1038. W.B.H. acknowledges support
from the Naval Academy Research Council.
NR 42
TC 7
Z9 7
U1 1
U2 10
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 SEP 6
PY 2010
VL 49
IS 17
BP 7726
EP 7734
DI 10.1021/ic100527d
PG 9
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 642QT
UT WOS:000281231800024
PM 20701276
ER
PT J
AU Wang, L
Song, YM
Gyanda, R
Sakhuja, R
Meher, NK
Hanci, S
Gyanda, K
Mathai, S
Sabri, F
Ciaramitaro, DA
Bedford, CD
Katritzky, AR
Duran, RS
AF Wang, Ling
Song, Yuming
Gyanda, Reena
Sakhuja, Rajeev
Meher, Nabin K.
Hanci, Sureyya
Gyanda, Kapil
Mathai, Sindhu
Sabri, Firouzeh
Ciaramitaro, David A.
Bedford, Clifford D.
Katritzky, Alan R.
Duran, Randolph S.
TI Preparation and Mechanical Properties of Crosslinked
1,2,3-Triazole-Polymers as Potential Propellant Binders
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE strain; mechanical properties; modulus; crosslinking; fillers
ID CLICK-CHEMISTRY; TRIAZOLE-OLIGOMERS; POLYTRIAZOLE RESIN; POLYMERS;
CYCLOADDITION; ALKYNES; AZIDES; LIGATION; SCIENCE; ROUTE
AB Thirteen triazole polymers were prepared as potential rocket propellant binders by the reactions of various diacetylenes and diazides. The reaction of E300 dipropiolate (1) with diazide (2) obtained from tetraethylene glycol was selected to study the effects of concentration of the tetraacetylene functionalized crosslinker (3) on the mechanical properties of resulting triazole polymers. The modulus of the polymers increased, whereas the strain (% elongation at failure) decreased with increasing percentage of crosslinker. The resulting triazole polymers also showed that the desired mechanical properties could be obtained by adjusting the crosslinker concentration during the polymerization. Addition of 43 wt % aluminum filler did not significantly affect the strain. The modulus of these triazole polymers was comparable with typical polyurethane elastomeric matrices for rocket propellants. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 2612-2621,2010
C1 [Song, Yuming; Gyanda, Reena; Sakhuja, Rajeev; Meher, Nabin K.; Hanci, Sureyya; Mathai, Sindhu; Katritzky, Alan R.] Univ Florida, Dept Chem, Ctr Heterocycl Cpds, Gainesville, FL 32611 USA.
[Wang, Ling; Gyanda, Kapil; Sabri, Firouzeh; Duran, Randolph S.] Univ Florida, Dept Chem, Polymer Res Lab, Gainesville, FL 32611 USA.
[Ciaramitaro, David A.; Bedford, Clifford D.] Off Naval Res, Arlington, VA 22203 USA.
RP Katritzky, AR (reprint author), Univ Florida, Dept Chem, Ctr Heterocycl Cpds, Gainesville, FL 32611 USA.
EM Katritzky@chem.ufl.edu; duran@chem.ufl.edu
FU Office of Naval Research [N00014-06-0211]
FX Contract grant sponsor: Office of Naval Research (from the Advanced
Reactive and Energetic Materials Program); contract grant number:
N00014-06-0211.
NR 32
TC 8
Z9 9
U1 2
U2 25
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0021-8995
J9 J APPL POLYM SCI
JI J. Appl. Polym. Sci.
PD SEP 5
PY 2010
VL 117
IS 5
BP 2612
EP 2621
DI 10.1002/app.30753
PG 10
WC Polymer Science
SC Polymer Science
GA 626VW
UT WOS:000279996500016
ER
PT J
AU Chao, CK
Su, SY
Huba, JD
Oyama, KI
AF Chao, C. K.
Su, S-Y
Huba, J. D.
Oyama, K-I
TI Modeling the presunrise plasma heating in the low- to midlatitude
topside ionospheres
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID PHOTOELECTRON FLUX; ION TEMPERATURE; ATMOSPHERE; SATELLITE; SUNRISE
AB Global distributions of presunrise ion heating were discovered by the Ionospheric Plasma and Electrodynamics Instrument onboard the ROCSAT-1 satellite in the low- to midlatitude topside ionosphere. The most significant presunrise ion heating was clearly found in the 0400-0500 LT sector and asymmetrically located in the South Pacific and North Atlantic region during the June and December soltices, respectively. Local time variations of ion temperature from 0000 to 0600 LT indicate that the temperature of the presunrise heating increases gradually after its early onset. Despite the late onset of the sunrise heating, the temperature increases rapidly and goes beyond that of the presunrise heating after 0430 LT. To identify possible heating sources, electron temperature observed by the HINOTORI satellite is compared and found similar patterns to the distributions of the presunrise ion heating. With the aid of the SAMI2 model of the ionosphere, these distributions and the local time variations of the temperature at 600 km altitude can be reproduced. The presunrise plasma heating is caused by photoelectrons streaming along field lines from low altitudes of the sunlit magnetic conjugate ionosphere. The early onset of the presunrise heating is one of the main factors to maintain the plasma temperature higher before 0430 LT. In addition, abundant amounts of light ions act as proxies in the processes of the presunrise heating to indirectly transfer thermal energy from electrons to O+ and to speed up the increase of O+ temperature. Asymmetrical hemispheric temperature distributions of the presunrise heating during the solstices are the result mainly of the geomagnetic dipole offset from the center of the Earth.
C1 [Chao, C. K.; Su, S-Y] Natl Cent Univ, Inst Space Sci, Jhongli 320001, Taiwan.
[Chao, C. K.] Natl Cent Univ, Dept Atmospher Sci, Jhongli 320001, Taiwan.
[Su, S-Y] Natl Cent Univ, Ctr Space & Remote Sensing Res, Jhongli 320001, Taiwan.
[Huba, J. D.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Oyama, K-I] Natl Cheng Kung Univ, Plasma & Space Sci Ctr, Tainan 70101, Taiwan.
RP Chao, CK (reprint author), Natl Cent Univ, Inst Space Sci, 300 Jhongda Rd, Jhongli 320001, Taiwan.
EM ckchao@jupiter.ss.ncu.edu.tw
FU National Science Council of R.O.C. [NSC96-2111-M-008-006]
FX This work has been supported by grant NSC96-2111-M-008-006 National
Science Council of R.O.C. The IPEI payload is designed and manufactured
in William B. Hanson Center of Space Sciences at the University of Texas
at Dallas led by R. A. Heelis. The electron temperature measured by the
plasma probes on the Japanese HINOTORI satellite was downloaded from the
National Space Science Data Center. This work uses the SAMI2 ionosphere
model written and developed by the Naval Research Laboratory.
NR 31
TC 2
Z9 2
U1 0
U2 2
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD SEP 4
PY 2010
VL 115
AR A09304
DI 10.1029/2009JA014923
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 647QM
UT WOS:000281633700001
ER
PT J
AU Lee, YT
AF Lee, Yu-Tai
TI Impact of Fan Gap Flow on the Centrifugal Impeller Aerodynamics
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
AB The effect of a gap between an inlet duct and a rotating impeller in a centrifugal fan is often neglected in the impeller design calculations or design-related computational fluid dynamics (CFD) analyses. This leads to an arbitrary determination of the gap size for the final fan configuration. Since the gap guides the volute flow back to the impeller flow field near the shroud high-curvature turning area, the low-momentum jet formed by the gap flow could prevent local flow from separation, reducing the local flow turning losses. However, this jet flow has enlarged flow separation in the blade passage, producing shedding vorticity in the downstream passage-flow. The passage-flow separation and the downstream volute flow, which is also affected by the passage-flow separation, have a higher impact on flow losses than the blade leading edge separation. If the gap size is not selected carefully, the combined effect of the passage-flow separation and downstream volute flow losses reduces the fan's overall performance between 2% points and 5% points as demonstrated in the current study. In this paper, local impeller velocity distributions obtained from both design-CFD and analysis-CFD calculations are compared along the shroud from the gap to the blade trailing edge. The overall impeller flow fields with and without the gap and volute effects are also compared and discussed based on the CFD solutions. Finally, an example of controlling the gap effect is shown.[DOI: 10.1115/1.4002450]
C1 USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20817 USA.
RP Lee, YT (reprint author), USN, Ctr Surface Warfare, Carderock Div, 9500 MacArthur Blvd, Bethesda, MD 20817 USA.
EM yu.lee@navy.mil
FU Office of Naval Research [331]
FX This work was funded by the Office of Naval Research Code 331 as part of
the lift-fan efforts of the Seabase-to-Shore FNC program. The project
effort was contributed by R. Coleman and L. M. Mulvihill of NSWCCD. The
ONR program manager was Dr. Ki-Han Kim. The computational resources from
the Naval Oceanographic Office Major Shared Resource Center (NAV-OCEANO
MSRC) were provided by the DoD High Performance Computing Modernization
Program (HPCMP).
NR 8
TC 3
Z9 3
U1 0
U2 6
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0098-2202
J9 J FLUID ENG-T ASME
JI J. Fluids Eng.-Trans. ASME
PD SEP
PY 2010
VL 132
IS 9
AR 091103
DI 10.1115/1.4002450
PG 9
WC Engineering, Mechanical
SC Engineering
GA 653VK
UT WOS:000282125600003
ER
PT J
AU Lee, DJ
Mark, R
AF Lee, Deok-Jin
Mark, Richard
TI Decentralized Control of Unmanned Aerial Robots for Wireless Airborne
Communication Networks
SO INTERNATIONAL JOURNAL OF ADVANCED ROBOTIC SYSTEMS
LA English
DT Article
DE Communication Relays; Decentralized cooperative control; Distributed
systems; Autonomous aerial robots; Adaptive gradient descent control;
Airborne communication networks
ID SENSOR NETWORKS
AB This paper presents a cooperative control strategy for a team of aerial robotic vehicles to establish wireless airborne communication networks between distributed heterogeneous vehicles. Each aerial robot serves as a flying mobile sensor performing a reconfigurable communication relay node which enabls communication networks with static or slow-moving nodes on gorund or ocean. For distributed optimal deployment of the aerial vehicles for communication networks, an adaptive hill-climbing type decentralized control algorithm is developed to seek out local extremum for optimal localization of the vehicles. The sensor networks estabilished by the decentralized cooperative control approach can adopt its configuraiton in response to signal strength as the function of the relative distance between the autonomous aerial robots and distributed sensor nodes in the sensed environment. Simulation studies are conducted to evaluate the effectiveness of the proposed decentralized cooperative control technique for robust communication networks.
C1 [Lee, Deok-Jin; Mark, Richard] USN, Postgrad Sch, Ctr Autonomous Vehicle Res, Monterey, CA 93943 USA.
RP Lee, DJ (reprint author), USN, Postgrad Sch, Ctr Autonomous Vehicle Res, Monterey, CA 93943 USA.
EM apollo17@gmail.com
NR 20
TC 6
Z9 7
U1 0
U2 1
PU I-TECH EDUCATION AND PUBLISHING
PI VIENNA
PA ZIEGLERGASSE 14, VIENNA, EUROPEAN UNION 1070, AUSTRIA
SN 1729-8806
J9 INT J ADV ROBOT SYST
JI Int. J. Adv. Robot. Syst.
PD SEP
PY 2010
VL 7
IS 3
BP 191
EP 200
PG 10
WC Robotics
SC Robotics
GA 698EZ
UT WOS:000285577000003
ER
PT J
AU Chu, PC
Hsieh, CP
AF Chu, Peter C.
Hsieh, Chung-Ping
TI Effect of Internal Solitary Waves on Underwater Acoustic Propagation
SO MARINE TECHNOLOGY SOCIETY JOURNAL
LA English
DT Article
DE Acoustic detection; CASS/GRAB; Coastal monitoring buoy; Internal
solitary wave; Ray path
ID MULTIFRACTAL THERMAL-CHARACTERISTICS; SEA UPPER LAYER; SOUND; WATER;
SPEED
AB Internal solitary waves (ISWs) were observed on 07:52-09:36 GMT July 30, 2005, in the Philippine Sea near Taiwan from high-resolution temperature sampling. The effect of ISWs on acoustic propagation was identified using the Navy's Comprehensive Acoustic Simulation System through comparison between range-independent and range dependent sound speed profiles. The ISWs enhance the sound propagation slightly (0-3 dB) in near-range, weaken or enhance the sound propagation (-20 to 20 dB) evidently in midrange, and always weaken the sound propagation (up to -20 dB) in far range. The ISW's effect on the acoustic propagation varies with sound frequency and sound source depth. This work provides a methodology to anticipate possible errors in transmission loss estimation in an operational framework, if no further additional data are available.
C1 [Chu, Peter C.; Hsieh, Chung-Ping] USN, Postgrad Sch, Naval Ocean Anal & Predict Lab, Monterey, CA 93493 USA.
RP Chu, PC (reprint author), USN, Postgrad Sch, Naval Ocean Anal & Predict Lab, Monterey, CA 93493 USA.
EM pcchu@nps.edu
FU Naval Oceanographic Office; Naval Postgraduate School
FX The Naval Oceanographic Office and the Naval Postgraduate School
supported this study. The authors deeply thank Ms. Ruth E. Keenan from
the Scientific Application International Corporation, Mashpee,
Massachusetts, and Mr. Melvin D. Wagstaff at the Naval Oceanographic
Office for their guidance on the CASS/GRAB modeling and simulation.
NR 15
TC 0
Z9 0
U1 2
U2 3
PU MARINE TECHNOLOGY SOC INC
PI COLUMBIA
PA 5565 STERRETT PLACE, STE 108, COLUMBIA, MD 21044 USA
SN 0025-3324
J9 MAR TECHNOL SOC J
JI Mar. Technol. Soc. J.
PD SEP-OCT
PY 2010
VL 44
IS 5
BP 10
EP 16
PG 7
WC Engineering, Ocean; Oceanography
SC Engineering; Oceanography
GA 679TP
UT WOS:000284184000003
ER
PT J
AU Wagner, MJ
Wolf, S
Promes, S
McGee, D
Hobgood, C
Doty, C
McErlean, MA
Janssen, A
Smith-Coggins, R
Ling, L
Mattu, A
Tantama, S
Beeson, M
Brabson, T
Christiansen, G
King, B
Luerssen, E
Muelleman, R
AF Wagner, Mary Jo
Wolf, Stephen
Promes, Susan
McGee, Doug
Hobgood, Cheri
Doty, Christopher
McErlean, Mara Ann
Janssen, Alan
Smith-Coggins, Rebecca
Ling, Louis
Mattu, Amal
Tantama, Stephen
Beeson, Michael
Brabson, Thomas
Christiansen, Greg
King, Brent
Luerssen, Emily
Muelleman, Robert
TI Duty Hours in Emergency Medicine: Balancing Patient Safety, Resident
Wellness, and the Resident Training Experience: A Consensus Response to
the 2008 Institute of Medicine Resident Duty Hours Recommendations
SO ACADEMIC EMERGENCY MEDICINE
LA English
DT Article
DE education; medical; graduate; internship and residency
ID IMPACT; SUPERVISION; ASSOCIATION; DEPARTMENTS; MORTALITY; WORK; CARE
AB Representatives of emergency medicine (EM) were asked to develop a consensus report that provided a review of the past and potential future effects of duty hour requirements for EM residency training. In addition to the restrictions made in 2003 by the Accreditation Council for Graduate Medical Education (ACGME), the potential effects of the 2008 Institute of Medicine (IOM) report on resident duty hours were postulated. The elements highlighted include patient safety, resident wellness, and the resident training experience. Many of the changes and recommendations did not affect EM as significantly as other specialties. Current training standards in EM have already emphasized patient safety by requiring continuous on-site supervision of residents. Resident fatigue has been addressed with restrictions of shift lengths and limitation of consecutive days worked. One recommendation from the IOM was a required 5-hour rest period for residents on call. Emergency department (ED) patient safety becomes an important concern with the decrease in the availability and in the patient load of a resident consultant that may result from this recommendation. Of greater concern is the already observed slower throughput time for admitted patients waiting for resident care, which will increase ED crowding and decrease patient safety in academic institutions. A balance between being overly prescriptive with duty hour restrictions and trying to improve resident wellness was recommended. Discussion is included regarding the appropriate length of EM training programs if clinical experiences were limited by new duty hour regulations. Finally, this report presents a review of the financing issues associated with any changes.
ACADEMIC EMERGENCY MEDICINE 2010; 17:1004-1011 (C) 2010 by the Society for Academic Emergency Medicine.
C1 [Wagner, Mary Jo] Michigan State Univ, E Lansing, MI 48824 USA.
[Wolf, Stephen] Univ Colorado, Denver, CO 80202 USA.
[Promes, Susan] Univ Calif San Francisco, San Francisco, CA 94143 USA.
[McGee, Doug] Albert Einstein Med Ctr, Philadelphia, PA 19141 USA.
[Hobgood, Cheri] Univ N Carolina, Chapel Hill, NC USA.
[Doty, Christopher] SUNY Hlth Sci Ctr, Brooklyn, NY USA.
[McErlean, Mara Ann] Albany Med Ctr, Albany, NY USA.
[Janssen, Alan] Genesys Reg Med Ctr, Grand Blanc, MI USA.
[Smith-Coggins, Rebecca] Stanford Univ, Palo Alto, CA 94304 USA.
[Ling, Louis] Univ Minnesota, Minneapolis, MN USA.
[Mattu, Amal] Univ Maryland, Baltimore, MD 21201 USA.
[Tantama, Stephen] USN, Med Ctr, San Diego, CA USA.
[Beeson, Michael] Akron Gen Med Ctr, Akron, OH USA.
[Brabson, Thomas] Atlanticare Reg Med Ctr, Atlantic City, NJ USA.
[Christiansen, Greg] Virginia Commonwealth Univ Hlth Syst, Richmond, VA USA.
[King, Brent] Univ Texas Houston, Sch Med, Houston, TX USA.
[Luerssen, Emily] Madigan Army Med Ctr, Tacoma, WA 98431 USA.
[Muelleman, Robert] Univ Nebraska, Omaha, NE 68182 USA.
RP Wagner, MJ (reprint author), Michigan State Univ, E Lansing, MI 48824 USA.
EM mjwagner@cris.com
NR 31
TC 7
Z9 7
U1 0
U2 4
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1069-6563
J9 ACAD EMERG MED
JI Acad. Emerg. Med.
PD SEP
PY 2010
VL 17
IS 9
BP 1004
EP 1011
DI 10.1111/j.1553-2712.2010.00789.x
PG 8
WC Emergency Medicine
SC Emergency Medicine
GA 647PV
UT WOS:000281632000016
PM 20836785
ER
EF