Search Results - (Author, Cooperation:B. Davis)
-
1Latest Papers from Table of Contents or Articles in PressFeng Xu, Gerard Harten, David J. Diner, Anthony B. Davis, Felix C. Seidel, Brian Rheingans, Mika Tosca, Mikhail D. Alexandrov, Brian Cairns, Richard A. Ferrare, Sharon P. Burton, Marta A. Fenn, Chris A. Hostetler, Robert Wood, Jens Redemann
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-02-18Publisher: Wiley-BlackwellPrint ISSN: 0148-0227Topics: GeosciencesPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-01-04Publisher: Wiley-BlackwellPrint ISSN: 1069-3629Electronic ISSN: 1745-6592Topics: Energy, Environment Protection, Nuclear Power EngineeringGeosciencesPublished by: -
3Latest Papers from Table of Contents or Articles in PressShan, Y., Guan, D., Hubacek, K., Zheng, B., Davis, S. J., Jia, L., Liu, J., Liu, Z., Fromer, N., Mi, Z., Meng, J., Deng, X., Li, Y., Lin, J., Schroeder, H., Weisz, H., Schellnhuber, H. J.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-06-28Publisher: American Association for the Advancement of Science (AAAS)Electronic ISSN: 2375-2548Topics: Natural Sciences in GeneralPublished by: -
4Latest Papers from Table of Contents or Articles in PressOttens, K., Hinman, R. M., Barrios, E., Skaug, B., Davis, L. S., Li, Q.-Z., Castrillon, D. H., Satterthwaite, A. B.
The American Association of Immunologists (AAI)
Published 2018Staff ViewPublication Date: 2018-07-24Publisher: The American Association of Immunologists (AAI)Print ISSN: 0022-1767Electronic ISSN: 1550-6606Topics: MedicinePublished by: -
5Latest Papers from Table of Contents or Articles in PressD. D. Chapman ; M. G. Frisk ; D. L. Abercrombie ; C. Safina ; S. H. Gruber ; E. A. Babcock ; K. A. Feldheim ; E. K. Pikitch ; C. Ward-Paige ; B. Davis ; S. Kessel ; M. Heithaus ; B. Worm
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-02-16Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; *Conservation of Natural Resources ; *SharksPublished by: -
6Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2011-06-28Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
7Latest Papers from Table of Contents or Articles in PressN. Negre ; C. D. Brown ; L. Ma ; C. A. Bristow ; S. W. Miller ; U. Wagner ; P. Kheradpour ; M. L. Eaton ; P. Loriaux ; R. Sealfon ; Z. Li ; H. Ishii ; R. F. Spokony ; J. Chen ; L. Hwang ; C. Cheng ; R. P. Auburn ; M. B. Davis ; M. Domanus ; P. K. Shah ; C. A. Morrison ; J. Zieba ; S. Suchy ; L. Senderowicz ; A. Victorsen ; N. A. Bild ; A. J. Grundstad ; D. Hanley ; D. M. MacAlpine ; M. Mannervik ; K. Venken ; H. Bellen ; R. White ; M. Gerstein ; S. Russell ; R. L. Grossman ; B. Ren ; J. W. Posakony ; M. Kellis ; K. P. White
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-03-25Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Chromatin/metabolism ; Chromatin Assembly and Disassembly ; Chromatin Immunoprecipitation ; Drosophila melanogaster/*genetics ; Enhancer Elements, Genetic/genetics ; Genome, Insect/*genetics ; Histone Deacetylases/metabolism ; Insulator Elements/genetics ; *Molecular Sequence Annotation ; Promoter Regions, Genetic/genetics ; Regulatory Sequences, Nucleic Acid/*genetics ; Reproducibility of Results ; Silencer Elements, Transcriptional/genetics ; Transcription Factors/metabolismPublished by: -
8Articles: DFG German National LicensesStaff View
ISSN: 0021-9673Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyType of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesStaff View
ISSN: 0362-3319Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: SociologyType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 0168-9525Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
11Latest Papers from Table of Contents or Articles in PressMills, L. S., Bragina, E. V., Kumar, A. V., Zimova, M., Lafferty, D. J. R., Feltner, J., Davis, B. M., Hackländer, K., Alves, P. C., Good, J. M., Melo-Ferreira, J., Dietz, A., Abramov, A. V., Lopatina, N., Fay, K.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-03-06Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: EvolutionPublished by: -
12Latest Papers from Table of Contents or Articles in PressWiddick, D., Royer, S. F., Wang, H., Vior, N. M., Gomez-Escribano, J. P., Davis, B. G., Bibb, M. J.
The American Society for Microbiology (ASM)
Published 2018Staff ViewPublication Date: 2018-07-28Publisher: The American Society for Microbiology (ASM)Print ISSN: 0066-4804Electronic ISSN: 1098-6596Topics: BiologyMedicinePublished by: -
13Articles: DFG German National LicensesMoreau, A. ; Ketterson, J. B. ; Davis, B.
[S.l.] : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have developed a new ultrasonic method for measuring the phase velocity of longitudinal and shear waves in self-supporting thin films. The film is bonded at one end to an interdigital transducer (IDT) which emits a continuous wave signal. The film is supported at the other end and maintained flat under a weak tension. A receiving IDT detects the in-phase and quadrature components of the sound waves as they propagate. A liquid bond is used between the receiving IDT and the film to allow a continuous variation of the path length. From the longitudinal and shear wave velocities, we can deduce the flexural and shear moduli of the film. For films of uniaxial or higher symmetry, the Young's and biaxial moduli can be expressed as combinations of the flexural and shear moduli. We applied this technique to Cu-Pd composition modulated thin films. Contrary to previous reports, we have not observed the supermodulus effect in either the flexural, shear, Young's or biaxial moduli for modulation wavelengths between 13 and 36 A(ring).Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1089-7682Source: AIP Digital ArchiveTopics: PhysicsNotes: In this paper we describe an apparent paradox concerning a moving plate capacitor driven by thermal noise from a resistor. The plates are attracted together, but a demon restores the plates of the capacitor to their original position when the voltage across the capacitor is small—hence only small forces are present for the demon to work against. The demon has to work harder than this to avoid the situation of perpetual motion, but the open question is how? This is unsolved, however we explore the concept of a moving plate capacitor by examining the case where it is still excited by thermal noise, but where the restoring force on the capacitor plates is provided by a simple spring rather than some unknown demon. We display simulation results with interesting behavior, particularly where the capacitor plates collide with each other. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesBELL, T. H. ; JOHNSON, S. E. ; DAVIS, B. ; FORDE, A. ; HAYWARD, N. ; WILKINS, C.
Oxford, UK : Blackwell Publishing Ltd
Published 1992Staff ViewISSN: 1525-1314Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: GeosciencesNotes: Extensive examination of large numbers of spatially orientated thin sections of orientated samples from orogens of all ages around the world has demonstrated that porphyroblasts do not rotate relative to geographical coordinates during highly non-coaxial ductile deformation of the matrix subsequent to their growth. This has been demonstrated for all tectonic environments so far investigated. The work also has provided new insights and data on metamorphic, structural and tectonic processes including: (1) the intimate control of deformation partitioning on metamorphic reactions; (2) solutions to the lack of correlation between lineations that indicate the direction of movement within thrusts and shear zones, and relative plate motion; and (3) a possible technique for determining the direction of relative plate motion that caused orogenesis in ancient orogens.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesYu, P. H. ; Davis, B. A. ; Fang, J. ; Boulton, A. A.
Oxford, UK : Blackwell Science Ltd
Published 1994Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: DSP-4 [N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine], a selective noradrenaline (NA) uptake blocker, is capable of inducing long-lasting depletion of NA in some noradrenergic axon terminals and of subsequently causing cell death to NA neuronal cell bodies in rodents. R(−)-Deprenyl, a selective monoamine oxidase (MAO)-B inhibitor, has been shown to be capable of protecting animals against this DSP-4-induced neuronal degeneration. Its action, however, has been claimed to be unrelated to the inhibition of MAO-B activity but rather due to competition for the NA uptake sites. The effects of several types of MAO inhibitors against DSP-4 toxicity, MAO-B activity both in vivo and in vitro, and NA uptake into the hippocampus have been assessed. N-(2-Hexyl)-N-methylpropargylamine (2-HxMP), a potent MAO-B inhibitor, for example, exerts no appreciable effect on NA uptake but is quite potent in counteracting the NA-depleting effect of DSP-4. Such results rule out the possibility that the neuroprotective effect of the MAO-B inhibitors is due mainly to their effect on NA uptake. The in vitro inhibition of MAO-B activity seems to correlate positively with their neuroprotective effects against DSP-4. In comparison to the MAO-B inhibitors, NA uptake blockers, such as desipramine and S(+)-deprenyl, exhibit relatively low efficacy in protecting the NA axon terminals from the effects of DSP-4-induced damage. The restoration of hippocampal NA levels is significantly enhanced with repeated treatments of R(−)-deprenyl or 2-HxMP even at very low doses following the DSP-4 insult. This suggests that in addition to neuroprotection, these MAO-B inhibitors may rescue some of the noradrenergic axon terminals damaged by DSP-4.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesYu, P. H. ; Davis, B. A. ; Durden, D. A. ; Barber, A. ; Terleckyj, I. ; Nicklas, W. G. ; Boulton, A. A.
Oxford, UK : Blackwell Science Ltd
Published 1994Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: Aliphatic N-propargylamines have recently been discovered to be highly potent, selective, and irreversible monoamine oxidase B (MAO-B) inhibitors. N-Methyl-N-(2-pentyl)propargylamine (M-2-PP) and N-methyl-N-(2-hexyl) propargylamine (2-HxMP), for example, are approximately fivefold more potent than I-deprenyl at inhibiting mouse brain MAO-B activity following oral administration. These inhibitors are nonaromatic compounds and are chemically quite different from other known MAO-B inhibitors. Some of their neurochemical and neuroprotective properties have been evaluated and compared with those of I-deprenyl. We have confirmed that these new inhibitors selectively inhibit MAO-B activity both in vitro and in vivo. 2-Phenylethylamine levels were substantially increased following administration of M-2-PP, but the levels of dopamine, 3,4-dihydroxyphenylacetic acid, homovanillic acid, 5-hydroxytryptamine, and 5-hydroxyindoleacetic acid were not affected except at high, nonselective doses. Chronic oral administration of I-deprenyl and M-2-PP causes selective inhibition of MAO-B activity and increases dopamine levels in mouse caudate. M-2-PP, like I-deprenyl, has been shown to be potent in protecting against MPTP-induced damage in the mouse. N-(2-Chloroethyl)-N-ethyl-2-bromobenzylamine (DSP-4), a noradrenaline neurotoxin, is not an MAO substrate. Its noradrenaline-depleting effects were substantially mitigated by I-deprenyl as well as by M-2-PP and 2-HxMP in the mouse hippocampus. Administration of 2-phenylethylamine, however, failed to reverse the effect of DSP-4. The neuroprotective effect of M-2-PP and 2-HxMP is apparently unrelated to the uptake of DSP-4.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesYu, P. H. ; Durden, D. A. ; Davis, B. A. ; Boulton, A. A.
Oxford, UK : Blackwell Publishing Ltd
Published 1987Staff ViewISSN: 1471-4159Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract: The rate of transamination of γ-aminobutyric acid (GABA) catalyzed by hog brain γ-aminobutyrate ami-notransferase was substantially reduced when the hydrogen at the γ-carbon position was replaced by deuterium. The deuterium isotope effect of this reaction has been substantiated by fluorometric, radiometric, and mass spectrometric procedures and assessed kinetically. The ratios of Vmax of the nonlabeled substrate/Vmax of the deuterated substrate obtained under different conditions ranged from 6 to 7. This indicates that the cleavage of the hydrogen from the γ-carbon is the rate-determining step in GABA transamination. Similar isotope effects have also been shown to occur in the peripheral system in vivo.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesWang, C. L. ; Pocha, M. D. ; Morse, J. D. ; Singh, M. S. ; Davis, B. A.
Woodbury, NY : American Institute of Physics (AIP)
Published 1989Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have investigated homogeneous, photoconductive semiconductors as very fast radiation detectors. We irradiated GaAs, Cr-doped GaAs, and Fe-doped InP crystals with 14 MeV neutrons to produce lattice defects that act as fast recombination centers for electrons and holes. Using short-pulse lasers and 17 MeV linear-accelerator electrons and bremsstrahlung x rays, we measured the temporal response and sensitivity of these photoconductors as functions of fluence ranging from 1012 to 1016 neutrons/cm2. The carrier lifetime and mobility decrease monotonically as the neutron fluence increases, resulting in faster detector response at the expense of sensitivity. A resolving time of less than 30 ps (full width at half maximum) was measured for the above photoconductors irradiated with ∼1015 neutrons/cm2.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesChan, D. K. ; Davis, B. M. ; Seidman, D. N.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: We present new time-of-flight electronics for atom-probe field-ion microscopy that is based on the LeCroy 2277/EXP2 time-to-digital converter (TDC) and is significantly superior to the commonly used LeCroy 4208 TDC. The maximum number of ions detected for each cycle is increased, the electronics dead time is decreased, and the pulse width from the Phillips Scientific 6904 discriminator is measured. The LeCroy 2277/EXP2 TDC records up to 128 ions per field evaporation pulse as opposed to a maximum of eight ions for a single LeCroy 4208 TDC. The dead time is reduced by increasing the pulse pair resolution, in the multihit mode of the TDC, from 7.3 to 3.3 ns. The LeCroy 2277/EXP2 TDC has both leading and trailing edge detection capability, allowing us to measure the pulse width generated by the Phillips Scientific 6904 discriminator. Combining the pulse width measurement capability with the updating capability of the Phillips Scientific 6904 discriminator, in which the discriminator extends the output pulse width by the time difference between two closely spaced (〈2 ns) pulses, we resolve two ions arriving within 2 ns of each other. With these improvements, we find that 66% of the total number of multiply field-evaporated ions arriving with a pulse separation of up to 8 ns are incorrectly counted as a single ion. The percentage of multiply field-evaporated ions occurring with a pulse separation of 2 ns is 6%.Type of Medium: Electronic ResourceURL: