Now showing items 364-383 of 965

  • Galactic Foregrounds in Owens Valley Radio Observatory and UCSB South Pole 1994 Cosmic Microwave Background Anisotropy Data 

    Mukherjee, P.; Dennison, B.; Ratra, B.; Simonetti, J. H.; Ganga, K.; Hamilton, J. C. (IOP PUBLISHING LTD, 2002-11)
    We study Galactic emission foreground contamination of the Owens Valley Radio Observatory and UCSB South Pole 1994 cosmic microwave background anisotropy data by cross-correlating with templates of infrared dust emission ...
  • galactic-scale absorption outflow in the low-luminosity quasar IRAS F04250-5718: Hubble Space Telescope/cosmic origins spectrograph observations 

    Edmonds, D.; Borguet, B.; Arav, N.; Dunn, J. P.; Penton, S.; Kriss, G. A.; Korista, K.; Costantini, E.; Steenbrugge, K.; Gonzalez-Serrano, J. I.; Aoki, K.; Bautista, M.; Behar, E.; Benn, C.; Crenshaw, D. M.; Everett, J.; Gabel, J.; Kaastra, J.; Moe, M.; Scott, J. (IOP Publishing Ltd., 2011-09)
    We present absorption line analysis of the outflow in the quasar IRAS F04250-5718. Far-ultraviolet data from the Cosmic Origins Spectrograph on board the Hubble Space Telescope reveal intrinsic narrow absorption lines from ...
  • Garrett Hardin: 21 April 1915- 14 September 2003 

    Cairns, John (American Philosophical Society, 2014-01-22)
    Nearly three decades before the concept of sustainable development reached an international audience, Garrett Hardin combined the study of economics, resource allocation, environmental studies, ecology, and political science ...
  • Garrt Hardin's Lifeboat Ethics Applied to Environmental Migrants 

    Cairns, John (The Social Contract, 2014-01-22)
    As human population grows, it begins to exceed the Earth s carrying capacity. Although very few countries have surplus capacity, or are under capacity, desperate people migrate to nations that appear to have a surplus of ...
  • Gauge Fields, Membranes, and Subdeterminant Vector Models 

    Leigh, R. G.; Mauri, A.; Minic, D.; Petkou, A. C. (American Physical Society, 2010-06-01)
    We present a class of classically marginal N-vector models in d = 4 and d = 3 whose scalar potentials can be written as subdeterminants of symmetric matrices. The d = 3 case can be thought of as a generalization of the ...
  • General rules for predicting phase transitions in perovskites due to octahedral tilting 

    Angel, R. J.; Zhao, J.; Ross, N. L. (American Physical Society, 2005-07-08)
    Recent experiments on several oxide perovskites reveal that they undergo tilt phase transitions to higher-symmetry phases on increasing pressure and that dT(c)/dP < 0, contrary to a general rule previously proposed for ...
  • generalized optical theorem in coherent scattering 

    Li, M. C. (American Physical Society, 1975-03)
    It is shown that the generalized optical theorem in quantum mechanics is a useful theorem in the scattering of two coherent beams.
  • Geometry-dependent electronic properties of highly fluorescent conjugated molecules 

    Yang, S. C.; Graupner, W.; Guha, S.; Puschnig, P.; Martin, C.; Chandrasekhar, H. R.; Chandrasekhar, M.; Leising, G.; Ambrosch-Draxl, C.; Scherf, U. (American Physical Society, 2000-09-11)
    We present a combined experimental/theoretical study of the electronic properties of conjugated para-phenylene type molecules under high pressure up to 80 kbar. Pressure is used as a tool to vary the molecular geometry and ...
  • Glass transition seen through asymptotic expansions 

    Olivier, J.; Renardy, M. (Siam Publications, 2011)
    Soft glassy materials exhibit the so-called glassy transition, which means that the behavior of the model at a low shear rate changes when a certain parameter (which we call the glass parameter) crosses a critical value. ...
  • Global Climate Pacts: Self Destructive or Successful? 

    Cairns, John (National Academy of Sciences, 2014-01-22)
    In order for global climate pacts to be effective, they must address the issue of greenhouse gas emissions and not let that exceed the biosphere s ability to assimilate them. Political negotiations will also fail if they ...
  • Global Crisis Collaboration: The Key to the Survival of Civilization in the 2st Century 

    Cairns, John (Asian Journal of Experimental Sciences, 2014-01-22)
    In the 21st century, civilization is threatened by multiple, interactive crises, any one of which could, in a worst case scenario, cause a huge reduction of population size and even human extinction. In short, both the ...
  • Global extremal conditions for multi-integer quadratic programming 

    Wang, Z. B.; Fang, S. C.; Gao, D. Y.; Xing, W. X. (American Institute of Mathematical Sciences, 2008-05)
    Support vector machine (SVM) is a very popular method for binary data classification in data mining ( machine learning). Since the objective function of the unconstrained SVM model is a non-smooth function, a lot of good ...
  • The Global Tower of Babel 

    Cairns, John (Virginia Tech, 2014-01-22)
    The key to long-term economic and social stability is the sustainable use of the planet. The Global Tower of Babel is such a formidable obstacle in achieving sustainable use of the planet that the barriers must be diminished. ...
  • The Globalization of Homo sapiens 

    Cairns, John (Asian Journal of Experimental Sciences, 2014-01-22)
    Homo sapiens began as a small-group species 160,000 years ago and remained tribal until the Agricultural Revolution about 10,000 years ago. Exponential growth began at that time and accelerated during the Industrial ...
  • Glucose modulates Ca2+ (i) oscillations in pancreatic islets via ionic and glycolytic mechanisms 

    Nunemaker, C. S.; Bertram, R.; Sherman, A.; Tsaneva-Atanasova, K.; Daniel, C. R.; Satin, L. S. (CELL PRESS, 2006-09)
    Pancreatic islets of Langerhans display complex intracellular calcium changes in response to glucose that include fast (seconds), slow (similar to 5 min), and mixed fast/slow oscillations; the slow and mixed oscillations ...
  • Glueball spectrum of pure Yang-Mills theory in 2+1 dimensions 

    Leigh, R. G.; Minic, D.; Yelnikov, A. (American Physical Society, 2007-09)
    We present details of the analytic computation of the spectrum of lowest spin glueballs in pure Yang-Mills theory in 2+1 dimensions. The new ingredient is provided by the conjectured new nontrivial expression for the ...
  • Goals and Conditions for a Sustainable World 

    Cairns, John (Ethics in Science and Environmental Politics, 2014-01-22)
    This book is a collection of John Cairns, Jr.'s papers, articles, and commentaries focusing primarily on goals and conditions needed to achieve the sustainable use of the planet.
  • Going Beyond the Tipping Points 

    Cairns, John (Science and Society, 2014-01-22)
    Tipping points may be passed when all appears well, and the changes that follow are likely to be swift and irreversible. A frequent analogy to passing tipping points is of passengers in an automobile driving rapidly through ...
  • Going, Going, Gone: The Fate of Low-Lying Islands and Estuaries 

    Cairns, John (Virginia Tech, 2014-01-22)
    Garrett Hardin s lifeboat metaphor is used to illustrate the problems of overpopulation and finite resources. Sea levels are rising due to excess atmospheric greenhouse gases that melt glaciers and warm the oceans. With ...
  • gravitational lens models based on submillimeter array imaging of herschel-selected strongly lensed sub-millimeter galaxies at z > 1.5 

    Bussmann, R. S.; Perez-Fournon, I.; Amber, S.; Calanog, J.; Gurwell, M. A.; Dannerbauer, H.; De Bernardis, F.; Fu, H.; Harris, A. I.; Krips, M.; Lapi, A.; Maiolino, R.; Omont, A.; Riechers, D.; Wardlow, J.; Baker, A. J.; Birkinshaw, M.; Bock, J.; Bourne, N.; Clements, D. L.; Cooray, A.; De Zotti, G.; Dunne, L.; Dye, S.; Eales, S.; Farrah, D.; Gavazzi, R.; Nuevo, J. G.; Hopwood, R.; Ibar, E.; Ivison, R. J.; Laporte, N.; Maddox, S.; Martinez-Navajas, P.; Michalowski, M.; Negrello, M.; Oliver, S. J.; Roseboom, I. G.; Scott, D.; Serjeant, S.; Smith, A. J.; Smith, M.; Streblyanska, A.; Valiante, E.; van der Werf, P.; Verma, A.; Vieira, J. D.; Wang, L.; Wilner, D. (IOP Publishing Ltd., 2013-12)
    Strong gravitational lenses are now being routinely discovered in wide-field surveys at (sub-)millimeter wavelengths. We present Submillimeter Array (SMA) high-spatial resolution imaging and Gemini-South and Multiple Mirror ...