Now showing items 115-134 of 965

  • Can Humans Respond to a Long-term Shortage of Renewable Resources 

    Cairns, John (Virginia Tech, 2014-01-22)
    If humanity wishes to continue to do business as usual, it must learn to adapt to the consequences of climate change and the decreased availability of renewable resources. Responding to rapid climate change will take the ...
  • Can kindness and compassion survive a violent cutback in human population size? 

    Cairns, John (Virginia Tech, 2014-01-22)
    The severity of the latest natural disasters and the increased probability of other major disruptions due to climate change mandate further examination of the consequences of such events on human society. Current unsustainable ...
  • Can the Cheap, Convenient, Readily Available Energy Party Continue 

    Cairns, John (Virginia Tech, 2014-01-22)
    Persuasive evidence indicates that oil supplies are peaking and therefore humans should expect for alternative fuels to play a major part in the future energy market.
  • can we improve estimates of juvenile dispersal distance and survival? 

    Cooper, C. B.; Daniels, S. J.; Walters, J. R. (Ecological Society of America, 2008-12)
    Estimates of distributions of natal dispersal distances and juvenile recruitment rates in open populations are strongly influenced by the extent and shape of the areas sampled. Techniques to improve biased dispersal and ...
  • Can we make the SiC-SiO2 interface as good as the Si-SiO2 interface? 

    Di Ventra, M. (AIP Publishing, 2001-10)
    A simple analysis based on the bulk valence and conduction densities of states was employed to estimate the interface-state densities for interfaces between the three most common SiC polytypes (3C, 4H, and 6H) and SiO2. ...
  • canine cancer screening via ultraviolet absorbance and fluorescence spectroscopy of serum proteins 

    Dickerson, B. D.; Geist, B. L.; Spillman, W. B.; Robertson, J. L. (Optical Society of America, 2007-01)
    A cost-effective optical cancer screening and monitoring technique was demonstrated in a pilot study of canine serum samples and was patented for commercialization. Compared to conventional blood chemistry analysis methods, ...
  • Canonical dual approach to solving 0-1 quadratic programming problems 

    Fang, S. C.; Gao, D. Y.; Sheu, R. L.; Wu, S. Y. (American Institute of Mathematical Sciences, 2008-02)
    This paper presents a canonical duality theory for solving nonconvex polynomial programming problems subjected to box constraints. It is proved that under certain conditions, the constrained nonconvex problems can be ...
  • capillary-gravity wave drag 

    Sun, S. M.; Keller, J. B. (AIP Publishing, 2001-08)
    Drag due to the production of capillary-gravity waves is calculated for an object moving along the surface of a liquid. Both two and three dimensional objects, moving at large Froude and Weber numbers, are treated. (C) ...
  • Case eigenfunction expansion for a conservative medium 

    Greenberg, W.; Zweifel, P. F. (AIP Publishing, 1976-02)
    By using the resolvent integration technique introduced by Larsen and Habetler, the one‐speed, isotropic scattering,neutron transport equation is treated in the infinite and semi‐infinite media. It is seen that the results ...
  • Cast Changes on the Ecological Stage of Earth's Evolutionary Theater 

    Cairns, John (Virginia Tech, 2014-01-22)
    Change has been the Earth s most notable feature for the past 4 billion years. Earth has already passed two ecological tipping points with the acidification of the oceans and the melting glaciers and ice sheets, both caused ...
  • Cationic Polythiophenes as Responsive DNA-Binding Polymers 

    Carreon, Analyn C.; Santos, Webster L.; Matson, John B.; So, Regina C. (The Royal Society of Chemistry, 2013-09-23)
    A new water soluble cationic polythiophene derivative, poly(N,N,N-trimethyl-3-(2-(thiophen-3-yl)acetamido)propan-1-aminium iodide), was synthesized via two consecutive post-polymerization functionalizations of poly(methyl ...
  • Cauchy-problem for the linearized version of the Generalized Polynomial KdV equation 

    Yordanov, R. G. (AIP Publishing, 1992-06)
    In the present paper results about the "Generalized Polynomial Korteweg-de Vries equation" (GPKdV) are obtained, extending the ones by Sachs [SIAM J. Math. Anal. 14, 674 (1983)] for the Korteweg-de Vries (KdV) equation. ...
  • cavity excavation and enlargement as mechanisms for indirect interactions in an avian community 

    Blanc, L. A.; Walters, J. R. (Ecological Society of America, 2008-02)
    Direct and indirect species interactions within ecological communities may play a strong role in influencing or maintaining community structure. Complex community interactions pose a major challenge to predicting ecosystem ...
  • Cell adhesion of Shewanella oneidensis to iron oxide minerals: Effect of different single crystal faces 

    Neal, Andrew L.; Bank, Tracy L.; Hochella, Michael F.; Rosso, Kevin M. (American Institute of Physics, 2005-12-30)
    The results of experiments designed to test the hypothesis that near-surface molecular structure of iron oxide minerals influences adhesion of dissimilatory iron reducing bacteria are presented. These experiments involved ...
  • Cell adhesion of Shewanella oneidensis to iron oxide minerals: Effect of different single crystal faces 

    Neal, A. L.; Bank, T. L.; Hochella, M. F.; Rosso, K. M. (American Institute of Physics, 2005-12)
    The results of experiments designed to test the hypothesis that near-surface molecular structure of iron oxide minerals influences adhesion of dissimilatory iron reducing bacteria are presented. These experiments involved ...
  • cellulose digestion and assimilation by three leaf-shredding aquatic insects 

    Sinsabaugh, R. L.; Linkins, A. E.; Benfield, E. F. (Ecological Society of America, 1985)
    The capacity of three leaf-shredding aquatic insects, Pteronarcys proteus (Plecoptera: Pteronarcidae), Tipula abdominalis (Diptera: Tipulidae), and Pycnopsyche luculenta (Trichoptera: Limnephilidae), to digest and assimilate ...
  • chaotic advection, diffusion, and reactions in open flows 

    Tel, T.; Karolyi, G.; Pentek, A.; Scheuring, I.; Toroczkai, Z.; Grebogi, C.; Kadtke, J. (AIP Publishing, 2000-03)
    We review and generalize recent results on advection of particles in open time-periodic hydrodynamical flows. First, the problem of passive advection is considered, and its fractal and chaotic nature is pointed out. Next, ...
  • Chaotic transport in low-dimensional superlattices 

    Zwolak, M.; Ferguson, D.; Di Ventra, M. (American Physical Society, 2003-02)
    We predict that in arrays of quantum dots (0D superlattice) and arrays of one-dimensional quantum wires (1D superlattice) chaotic transport should be observed in the presence of an ac field and for a wide range of physical ...
  • Characteristics of magma-driven hydrothermal systems at oceanic spreading centers 

    Lowell, Robert P.; Farough, Aida; Hoover, Joshua; Cummings, Kylin (American Geophysical Union, 2013-06)
    We use one- and two-limb single-pass models to de termine vent field characteristics such as mass flow rate Q, bulk permeability in the discharge zone k(d), thickness of the conductive boundary layer at the base of the ...
  • Characterization of electrical conductivity in a zeolitelike material 

    Soghomonian, V.; Heremans, J. J. (AIP Publishing, 2009-10)
    We present the electrical characterization of a zeolitelike oxo-vanadium arsenate framework. The experimentally obtained electronic and ionic conductivities and their interactions are discussed. Further, we investigate the ...