Now showing items 1708-1727 of 18256

    • Can Online Learning Bend the Higher Education Cost Curve? 

      Deming, David James; Goldin, Claudia D.; Katz, Lawrence F.; Yuchtman, Noam (American Economic Association, 2015)
      We examine whether online learning technologies have led to lower prices in higher education. Using data from the Integrated Postsecondary Education Data System, we show that online education is concentrated in large ...
    • Can Paleoceanographic Tracers Constrain Meridional Circulation Rates? 

      Huybers, Peter John; Gebbie, Geoffrey A; Marchal, Olivier (American Meteorological Society, 2007)
      The ability of paleoceanographic tracers to constrain rates of transport is examined using an inverse method to combine idealized observations with a geostrophic model. Considered are the spatial distribution, accuracy, ...
    • Can role models boost entrepreneurial attitudes? 

      Fellnhofer, Katharina; Puumalainen, Kaisu (Inderscience Publishers, 2017)
      This multi-country study used role models to boost perceptions of entrepreneurial feasibility and desirability. The results of a structural equation model based on a sample comprising 426 individuals who were primarily ...
    • Can State Taxes Redistribute Income? 

      Feldstein, Martin; Wrobel, Marian Vaillant (Elsevier Science B.V., Amsterdam, 1994)
      The evidence presented in this paper supports the basic theoretical presumption that state and local governments cannot redistribute income. Since individuals can avoid unfavorable taxes by migrating to jurisdictions that ...
    • Can Statistical Zero Knowledge be made Non-Interactive? or On the Relationship of SZK and NISZK 

      Goldreich, Oded; Sahai, Amit; Vadhan, Salil P. (Springer-Verlag, 1999)
      We extend the study of non-interactive statistical zero-knowledge proofs. Our main focus is to compare the class NISZK of problems possessing such non-interactive proofs to the class SZK of problems possessing interactive ...
    • Can Vacancies Lubricate Dislocation Motion in Aluminum? 

      Lu, Gang; Kaxiras, Efthimios (American Physical Society, 2002)
      The interaction of vacancy with dislocations in Al is studied using the semidiscrete variational Peierls-Nabarro model with ab initio determined gamma surface. For the first time, we confirm theoretically the so-called ...
    • Can We Progress from Solipsistic Science to Frugal Innovation? 

      Nocera, Daniel G. (Massachusetts Institute of Technology Press (MIT Press), 2012)
      Energy demand in the twenty-first century will be driven by the needs of three billion people in the emerging world and three billion new inhabitants to our planet. To provide them with a renewable and sustainable energy ...
    • Can We Solve the Mysteries of the National Vietnam Veterans Readjustment Study? 

      McNally, Richard (Elsevier, 2007)
      The National Vietnam Veterans Readjustment Study (NVVRS) researchers reported that 30.9% of all men who served in that conflict developed posttraumatic stress disorder (PTSD) even though only about 15% had been assigned ...
    • Can we test geoengineering? 

      MacMynowski, Douglas G.; Keith, David; Caldeira, Ken; Shin, Ho-Jeong (Royal Society of Chemistry (RSC), 2011)
      Solar radiation management (SRM), a form of geoengineering, might be used to offset some fraction of the anthropogenic radiative forcing of climate as a means to reduce climate change, but the risks and effectiveness of ...
    • Can Weak Lensing Surveys Confirm BICEP2? 

      Chisari, Nora Elisa; Dvorkin, Cora; Schmidt, Fabian (American Physical Society (APS), 2014)
      The detection of B-modes in the cosmic microwave background (CMB) polarization by the BICEP2 experiment, if interpreted as evidence for a primordial gravitational wave background, has enormous ramifications for cosmology ...
    • Can You Sequence Ecology? Metagenomics of Adaptive Diversification 

      Marx, Christopher J (Public Library of Science, 2013)
      Few areas of science have benefited more from the expansion in sequencing capability than the study of microbial communities. Can sequence data, besides providing hypotheses of the functions the members possess, detect the ...
    • Cancer Biology: Infectious Tumour Cells 

      Dingli, David; Nowak, Martin A. (Nature Publishing Group, 2006)
      Cancer cells are generally viewed as a problem innate to their host, but evidence is mounting that they can evolve to become infectious agents and be transmitted between individuals. The current view of cancer development ...
    • Cancer cell angiogenic capability is regulated by 3D culture and integrin engagement 

      Fischbach, Claudia; Kong, Hyun Joon; Hsiong, Susan X.; Evangelista, Marta B.; Yuen, Will; Mooney, David J. (National Academy of Sciences, 2009)
      Three-dimensional culture alters cancer cell signaling; however, the underlying mechanisms and importance of these changes on tumor vascularization remain unclear. A hydrogel system was used to examine the role of the ...
    • Cancer metastasis networks and the prediction of progression patterns 

      Chen, L L; Blumm, N; Christakis, N; Barabási, A-L; Deisboeck, Thomas Steve (Nature Publishing Group, 2009)
    • Cancer proliferation and therapy: the Warburg effect and quantum metabolism 

      Demetrius, Lloyd A.; Coy, Johannes F; Tuszynski, Jack A (BioMed Central, 2010)
      Background: Most cancer cells, in contrast to normal differentiated cells, rely on aerobic glycolysis instead of oxidative phosphorylation to generate metabolic energy, a phenomenon called the Warburg effect. Model: Quantum ...
    • Candidate genes and functional noncoding variants identified in a canine model of obsessive-compulsive disorder 

      Tang, Ruqi; Noh, Hyun Ji; Wang, Dongqing; Sigurdsson, Snaevar; Swofford, Ross; Perloski, Michele; Duxbury, Margaret; Patterson, Edward E; Albright, Julie; Castelhano, Marta; Auton, Adam; Boyko, Adam R; Feng, Guoping; Lindblad-Toh, Kerstin; Karlsson, Elinor K (BioMed Central, 2014)
      Background: Obsessive-compulsive disorder (OCD), a severe mental disease manifested in time-consuming repetition of behaviors, affects 1 to 3% of the human population. While highly heritable, complex genetics has hampered ...
    • Candidates for Inelastic Dark Matter 

      Cui, Yanou; Morrissey, David; Poland, David; Randall, Lisa (Springer, 2009)
      Although we have yet to determine whether the DAMA data represents a true discovery of new physics, among such interpretations inelastic dark matter (IDM) can match the energy spectrum of DAMA very well while not contradicting ...
    • Candor and Integrity in Science 

      Holton, Gerald (Springer Verlag, 2005)
      In the pursuit of researches and in the reporting of their results, the individual scientist as well as the community of fellow professionals rely implicitly on the researcher embracing the habit of truthfulness, a main ...
    • Canga Renatae, A New Genus and Species of Cyphophthalmi from Brazilian Amazon Caves (Opiliones: Neogoveidae) 

      DaSilva, Marcio Bernardino; Pinto-da-Rocha, Ricardo; Giribet, Gonzalo (Magnolia Press, 2010)
      A new genus and species of Cyphophthalmi, Canga renatae gen. nov., sp. nov., is described in the family Neogoveidae from a system of caves in the Serra de Carajás, Pará State, Brazil. Canga can be easily distinguished from ...
    • The Canonical Ring of an Algebraic Surface 

      Mumford, David Bryant (1962)