Search Results - (Author, Cooperation:K. Hill)

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  1. 1
    Staff View
    Publication Date:
    2018-12-21
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Geosciences
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Botany
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-04-12
    Publisher:
    Nature Publishing Group (NPG)
    Electronic ISSN:
    2158-3188
    Topics:
    Medicine
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    Publication Date:
    2018-05-09
    Publisher:
    BMJ Publishing
    Electronic ISSN:
    2044-6055
    Topics:
    Medicine
    Keywords:
    Open access, Communication, Communication
    Published by:
    http://group.bmj.com/

    Latest Papers from Table of Contents or Articles in Press
  4. 4
    R. M. Pateman ; J. K. Hill ; D. B. Roy ; R. Fox ; C. D. Thomas
    American Association for the Advancement of Science (AAAS)
    Published 2012
    Staff View
    Publication Date:
    2012-05-26
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Butterflies/growth & development/*physiology ; *Cistaceae ; *Climate Change ; *Ecosystem ; Feeding Behavior ; *Geranium ; Great Britain ; Larva/physiology ; Population Dynamics ; Population Growth ; Seasons ; Temperature
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  5. 5
    I. C. Chen ; J. K. Hill ; R. Ohlemuller ; D. B. Roy ; C. D. Thomas
    American Association for the Advancement of Science (AAAS)
    Published 2011
    Staff View
    Publication Date:
    2011-08-20
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Altitude ; Animals ; *Behavior, Animal ; *Climate Change ; *Ecosystem ; *Environment ; Geography ; Population Dynamics ; Species Specificity ; Time Factors
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  6. 6
    P. Abbot ; J. Abe ; J. Alcock ; S. Alizon ; J. A. Alpedrinha ; M. Andersson ; J. B. Andre ; M. van Baalen ; F. Balloux ; S. Balshine ; N. Barton ; L. W. Beukeboom ; J. M. Biernaskie ; T. Bilde ; G. Borgia ; M. Breed ; S. Brown ; R. Bshary ; A. Buckling ; N. T. Burley ; M. N. Burton-Chellew ; M. A. Cant ; M. Chapuisat ; E. L. Charnov ; T. Clutton-Brock ; A. Cockburn ; B. J. Cole ; N. Colegrave ; L. Cosmides ; I. D. Couzin ; J. A. Coyne ; S. Creel ; B. Crespi ; R. L. Curry ; S. R. Dall ; T. Day ; J. L. Dickinson ; L. A. Dugatkin ; C. El Mouden ; S. T. Emlen ; J. Evans ; R. Ferriere ; J. Field ; S. Foitzik ; K. Foster ; W. A. Foster ; C. W. Fox ; J. Gadau ; S. Gandon ; A. Gardner ; M. G. Gardner ; T. Getty ; M. A. Goodisman ; A. Grafen ; R. Grosberg ; C. M. Grozinger ; P. H. Gouyon ; D. Gwynne ; P. H. Harvey ; B. J. Hatchwell ; J. Heinze ; H. Helantera ; K. R. Helms ; K. Hill ; N. Jiricny ; R. A. Johnstone ; A. Kacelnik ; E. T. Kiers ; H. Kokko ; J. Komdeur ; J. Korb ; D. Kronauer ; R. Kummerli ; L. Lehmann ; T. A. Linksvayer ; S. Lion ; B. Lyon ; J. A. Marshall ; R. McElreath ; Y. Michalakis ; R. E. Michod ; D. Mock ; T. Monnin ; R. Montgomerie ; A. J. Moore ; U. G. Mueller ; R. Noe ; S. Okasha ; P. Pamilo ; G. A. Parker ; J. S. Pedersen ; I. Pen ; D. Pfennig ; D. C. Queller ; D. J. Rankin ; S. E. Reece ; H. K. Reeve ; M. Reuter ; G. Roberts ; S. K. Robson ; D. Roze ; F. Rousset ; O. Rueppell ; J. L. Sachs ; L. Santorelli ; P. Schmid-Hempel ; M. P. Schwarz ; T. Scott-Phillips ; J. Shellmann-Sherman ; P. W. Sherman ; D. M. Shuker ; J. Smith ; J. C. Spagna ; B. Strassmann ; A. V. Suarez ; L. Sundstrom ; M. Taborsky ; P. Taylor ; G. Thompson ; J. Tooby ; N. D. Tsutsui ; K. Tsuji ; S. Turillazzi ; F. Ubeda ; E. L. Vargo ; B. Voelkl ; T. Wenseleers ; S. A. West ; M. J. West-Eberhard ; D. F. Westneat ; D. C. Wiernasz ; G. Wild ; R. Wrangham ; A. J. Young ; D. W. Zeh ; J. A. Zeh ; A. Zink
    Nature Publishing Group (NPG)
    Published 2011
    Staff View
    Publication Date:
    2011-03-25
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Altruism ; Animals ; *Biological Evolution ; Cooperative Behavior ; Female ; Game Theory ; *Genetic Fitness ; Genetics, Population ; Heredity ; Humans ; Male ; *Models, Biological ; Phenotype ; Reproducibility of Results ; *Selection, Genetic ; Sex Ratio
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  7. 7
    Staff View
    Publication Date:
    2012-01-13
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  8. 8
    K. Hill ; A. M. Hurtado
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-03-09
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Aging/physiology ; *Biological Evolution ; Competitive Behavior/physiology ; *Cooperative Behavior ; Emigration and Immigration ; *Family Characteristics ; Female ; Fertility/physiology ; Gambia ; Humans ; Male ; Menopause/*physiology ; Models, Biological ; Reproduction/*physiology ; *Reproductive Behavior
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  9. 9
    Staff View
    Publication Date:
    2018-04-27
    Publisher:
    The American Society for Microbiology (ASM)
    Print ISSN:
    0066-4804
    Electronic ISSN:
    1098-6596
    Topics:
    Biology
    Medicine
    Published by:
    http://www.asm.org/

    Latest Papers from Table of Contents or Articles in Press
  10. 10
    Staff View
    Publication Date:
    2018-07-13
    Publisher:
    American Physical Society (APS)
    Electronic ISSN:
    1098-4402
    Topics:
    Physics
    Keywords:
    Particle and Radiation Detectors
    Published by:
    http://www.aps.org/

    Latest Papers from Table of Contents or Articles in Press
  11. 11
    Staff View
    Publication Date:
    2018-04-22
    Publisher:
    BMJ Publishing
    Electronic ISSN:
    2044-6055
    Topics:
    Medicine
    Keywords:
    Open access, Respiratory medicine
    Published by:
    http://group.bmj.com/

    Latest Papers from Table of Contents or Articles in Press
  12. 12
    Cada, M. ; Keyworth, B. P. ; Glinski, J. M. ; SpringThorpe, A. J. ; Rolland, C. ; Hill, K. O.

    [S.l.] : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1089-7550
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    The quantum-confined Stark effect observed in multiple quantum well (MQW) materials has been employed recently in a variety of electro-optic devices. This communication reports on some encouraging results achieved with a MQW-based, nonlinear vertical directional coupler. The device may be operated as an electrooptic switch through changes in the coupling length in response to large Stark shifts.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.347225

    Articles: DFG German National Licenses
  13. 13
    Hill, K. E. ; New, G. H. C. ; Burnett, K.

    College Park, Md. : American Institute of Physics (AIP)
    Published 1990
    Staff View
    ISSN:
    1089-7690
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Chemistry and Pharmacology
    Notes:
    A theoretical model is presented for studying the photodissociation of KrF in the presence of an intense ultrashort optical pulse. The spectrum of the translational kinetic energies of the dissociated products is calculated and shown to be a clear probe for the coherent interaction.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.458358

    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    1089-7674
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Evidence is presented for the role of radial electric field shear in enhanced confinement regimes attained without sharp bifurcations or transitions. Temperature scans at constant density, created in the reheat phase following deuterium pellet injection into supershot plasmas in the Tokamak Fusion Test Reactor [J. D. Strachan, et al., Phys. Rev. Lett. 58, 1004 (1987)] are simulated using a physics-based transport model. The slow reheat of the ion temperature profile, during which the temperature nearly doubles, is not explained by relatively comprehensive models of transport due to Ion Temperature Gradient Driven Turbulence (ITGDT), which depends primarily on the (unchanging) electron density gradient. An extended model, including the suppression of toroidal ITGDT by self-consistent radial electric field shear, does reproduce the reheat phase. The extended reheat at constant density is observed in supershot but not L-Mode plasmas. © 2000 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.873867

    Articles: DFG German National Licenses
  15. 15
    Wilson, J. R. ; Bell, R. E. ; Bernabei, S. ; Hill, K. ; Hosea, J. C. ; LeBlanc, B. ; Majeski, R. ; Nazikian, R. ; Ono, M. ; Phillips, C. K. ; Schilling, G. ; von Goeler, S.

    [S.l.] : American Institute of Physics (AIP)
    Published 1998
    Staff View
    ISSN:
    1089-7674
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Recent radio-frequency heating experiments on the Tokamak Fusion Test Reactor (TFTR) [Hawryluk et al., Plasma Phys. Controlled Fusion 33, 1509 (1991)] have focused on developing tools for both pressure and current profile control in deuterium–tritium (DT) plasmas. A new antenna was added to investigate pressure profile control utilizing direct ion Bernstein wave (IBW) heating. This was the first time direct IBW heating was explored on TFTR. Plasma heating and driven poloidal flows are observed. Previously heating and current drive via mode-converted IBW waves had been demonstrated in non-DT plasmas but efforts in DT plasmas had been unsuccessful. This lack of success had been ascribed to the presence of a small 7Li minority ion population. In the most recent experiments 6Li was used exclusively for machine conditioning and mode-conversion heating consistent with theory is now observed in DT plasmas. © 1998 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.872840

    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    1089-7674
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Because alpha particle losses can have a significant influence on tokamak reactor viability, the loss of deuterium–tritium alpha particles from the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire et al., Phys. Plasmas 2, 2176 (1995)] has been measured under a wide range of conditions. In TFTR, first orbit loss and stochastic toroidal field ripple diffusion are always present. Other losses can arise due to magnetohydrodynamic instabilities or due to waves in the ion cyclotron range of frequencies. No alpha particle losses have yet been seen due to collective instabilities driven by alphas. Ion Bernstein waves can drive large losses of fast ions from TFTR, and details of those losses support one element of the alpha energy channeling scenario. © 1996 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.871983

    Articles: DFG German National Licenses
  17. 17
    Staff View
    ISSN:
    1089-7674
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Notes:
    Wall conditioning in the Tokamak Fusion Test Reactor (TFTR) [K. M. McGuire et al., Phys. Plasmas 2, 2176 (1995)] by injection of lithium pellets into the plasma has resulted in large improvements in deuterium–tritium fusion power production (up to 10.7 MW), the Lawson triple product (up to 1021 m−3 s keV), and energy confinement time (up to 330 ms). The maximum plasma current for access to high-performance supershots has been increased from 1.9 to 2.7 MA, leading to stable operation at plasma stored energy values greater than 5 MJ. The amount of lithium on the limiter and the effectiveness of its action are maximized through (1) distributing the Li over the limiter surface by injection of four Li pellets into Ohmic plasmas of increasing major and minor radius, and (2) injection of four Li pellets into the Ohmic phase of supershot discharges before neutral-beam heating is begun. © 1996 American Institute of Physics.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.871984

    Articles: DFG German National Licenses
  18. 18
    Ramsey, A. T. ; Hill, K. W.

    [S.l.] : American Institute of Physics (AIP)
    Published 1992
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    High purity fused silica fibers are widely used in controlled fusion research to conduct visible light (down to about 4000 A(ring)) away from the hostile environment of the tokamak. These fibers are not totally radiation immune, however. We see both luminescence and loss of transmission induced by radiation at the present levels of D–D fusion yields on Tokamak Fusion Test Reactor (TFTR). The luminescence shows spectral structure and is brightest near the widely used Hα–Dα wavelength of 6562 A(ring). The induced opacity has both transient (time scale of seconds) and permanent components. Extrapolation to D–T plasmas, which are planned for TFTR, yields levels of both luminescence and opacity which range from annoying to fatal if current practices are continued.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1143624

    Articles: DFG German National Licenses
  19. 19
    Howell, R. B. ; Terry, J. ; Marmar, E. S. ; Hill, K. W. ; Hulse, R. ; Janos, A. ; Park, H. ; Ramsey, A. T. ; Taylor, G.

    [S.l.] : American Institute of Physics (AIP)
    Published 1990
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    Injection of both Li and C pellets into TFTR discharges has provided a variety of almost instantaneous changes to the normal equilibrium profiles. The profile measurements of visible bremsstrahlung intensity, electron density, and temperature were used to deduce Zeff profiles versus time. The evolution Zeff is examined in L mode and supershot cases. A comparison is made to the soft x-ray profile behavior for these same conditions.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1141689

    Articles: DFG German National Licenses
  20. 20
    Gotoh, M. ; Hill, K. D. ; Murdock, E. G.

    [S.l.] : American Institute of Physics (AIP)
    Published 1991
    Staff View
    ISSN:
    1089-7623
    Source:
    AIP Digital Archive
    Topics:
    Physics
    Electrical Engineering, Measurement and Control Technology
    Notes:
    The thermoelectric voltage of the gold/platinum thermocouple has been measured over the range 0–962 °C by comparison with calibrated platinum resistance thermometers. From 0 to 500 °C, the measurements were carried out in stirred liquid baths; from 660 to 964 °C, they were carried out in a pressure-controlled sodium-filled heat pipe furnace that provided an isothermal intercomparison environment. Measurements were also made in the metal freezing points of indium, tin, zinc, antimony, and silver, at the melting point of gallium, and at the liquidus point of the silver-copper eutectic. By fitting the measured thermoelectric voltages to a single eighth-degree polynomial in temperature by the method of least squares, a reference function is obtained for the Au/Pt thermocouple that provides emf as a function of temperature (ITS-90) to within ±10 mK from 0 to 962 °C. The Au/Pt thermocouple merits serious consideration for precise temperature measurements as its stability approaches that of the high-temperature platinum resistance thermometer.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1063/1.1142213

    Articles: DFG German National Licenses