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Browsing MIT Open Access Articles by Title

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  • Demory, Brice-Olivier; Seager, Sara; Winn, Joshua Nathan (Institute of Physics Publishing, 2011-11)
    This paper reports the discovery and characterization of the transiting hot giant exoplanet Kepler-17b. The planet has an orbital period of 1.486 days, and radial velocity measurements from the Hobby-Eberly Telescope show ...
  • Trenkle, Jonathan C.; Packard, Corinne E.; Schuh, Christopher A. (American Institute of Physics, 2010-07)
    An instrument capable of performing nanoindentation at temperatures up to 500 °C in inert atmospheres, including partial vacuum and gas near atmospheric pressures, is described. Technical issues associated with the technique ...
  • Trelewicz, Jason R.; Schuh, Christopher A. (Elsevier, 2009-08)
    High-temperature nanoindentation experiments are conducted to assess the activation enthalpy for deformation of nanocrystalline Ni–W alloys, for grain sizes between 3 and 80 nm. Thermal softening becomes less pronounced ...
  • Yokoyama, Kenichi; Uhlin, Ulla; Stubbe, JoAnne (American Chemical Society (ACS), 2010-10)
    Escherichia coli ribonucleotide reductase is an α2β2 complex that catalyzes the conversion of nucleotides to deoxynucleotides and requires a diferric-tyrosyl radical (Y[superscript •]) cofactor to initiate catalysis. The ...
  • Winn, Joshua Nathan; Fabrycky, Daniel C.; Albrecht, Simon H.; Johnson, John Asher (American Physical Society, 2010-07)
    We show that stars with transiting planets for which the stellar obliquity is large are preferentially hot (T [subscript eff] > 6250 K). This could explain why small obliquities were observed in the earliest measurements, ...
  • Torrejón, J. M.; Testa, P.; Rodes, J. J.; Nowak, Michael A.; Schulz, Norbert S. (IOP Publishing, 2013-02)
    We present an analysis of a series of four consecutive Chandra high-resolution transmission gratings observations, amounting to a total of 150 ks, of the Be X-ray source HD 119682 (=1WGA J1346.5–6255), a member of the new ...
  • van Dijk, Marten; Juels, Ari; Oprea, Alina; Rivest, Ronald L.; Stefanov, Emil; Triandopoulos, Nikos (Association for Computing Machinery (ACM), 2012-10)
    We consider the following challenge: How can a cloud storage provider prove to a tenant that it's encrypting files at rest, when the provider itself holds the corresponding encryption keys? Such proofs demonstrate sound ...
  • Coulson, N. Edward; Fisher, Lynn M. (Elsevier, 2008-12)
    We develop two search-theoretic models emphasizing firm entry to examine the Oswald hypothesis, the idea that homeownership is linked to inferior labor market outcomes, and compare their predictions to three extant theories. ...
  • Dreyfuss, Jonathan M.; Levner, Daniel; Galagan, James E.; Church, George M.; Ramoni, Marco F. (BioMed Central Ltd., 2012-07)
    Background Pre-symptomatic prediction of disease and drug response based on genetic testing is a critical component of personalized medicine. Previous work has demonstrated that the predictive capacity of genetic testing ...
  • Bors, Eleanor Kathleen; Solomon, Susan (National Academy of Sciences (U.S.), 2013-05)
    Stratospheric ozone loss is on course to become a solved environmental problem, with all significant producing countries (including China and India) undertaking complete phase-outs of ozone-depleting substances. The universal ...
  • Antipov, Eugene; Cho, Art E.; Klibanov, Alexander M. (American Chemical Society, 2009-08)
    The effect of all possible mutations at position 178 on the enantioselectivity of yeast surface-bound horseradish peroxidase (HRP) toward chiral phenols has been investigated. In contrast to their wild-type predecessor, ...
  • Poliannikov, Oleg V.; Malcolm, Alison E.; Djikpesse, Hugues; Prange, Michael (Society of Exploration Geophysicists, 2011)
    Hydraulic fracturing is an important tool that helps extract fluids from the subsurface. It is critical in applications ranging from enhanced oil recovery to geothermal energy pro-duction. As the goal of fracturing is to ...
  • O'Gorman, Paul Ambrose; Muller, Caroline (IOP Publishing, 2010-04)
    The factors governing the rate of change in the amount of atmospheric water vapor are analyzed in simulations of climate change. The global-mean amount of water vapor is estimated to increase at a differential rate of 7.3% ...
  • Enright, Ryan; Miljkovic, Nenad; Sprittles, James; Nolan, Kevin; Mitchell, Robert; Wang, Evelyn N. (American Chemical Society (ACS), 2014-09)
    Surface engineering at the nanoscale is a rapidly developing field that promises to impact a range of applications including energy production, water desalination, self-cleaning and anti-icing surfaces, thermal management ...
  • Bolhuis, Johan J.; Tattersall, Ian; Berwick, Robert C.; Chomsky, Avram Noam (Public Library of Science, 2014-08)
    The evolution of the faculty of language largely remains an enigma. In this essay, we ask why. Language's evolutionary analysis is complicated because it has no equivalent in any nonhuman species. There is also no consensus ...
  • Graves, John A.; Gruber, Jonathan (American Economic Association, 2012-05)
    It is widely recognized that the 2006 Massachusetts health reforms served as a blueprint for national reform under the 2010 Affordable Care Act (ACA). As such, there is interest in using the Massachusetts experience to ...
  • Weber, Joseph P.; Rice, Sarah; Leone, Andrew J.; Willenborg, Michael (Wiley Blackwell, 2012-04)
    The study of periods of market euphoria, such as Holland’s seventeenth-century tulip mania, England’s eighteenth-century South Sea Company, America’s nineteenth-century railroads, or, most recently, the U.S. housing ...
  • Biddle, Gary C.; Hilary, Gilles; Verdi, Rodrigo (Elsevier, 2009-09)
    Prior evidence that higher-quality financial reporting improves capital investment efficiency leaves unaddressed whether it reduces over- or under-investment. This study provides evidence of both in documenting a conditional ...
  • Tucker, Catherine Elizabeth; Zhang, Juanjuan (INFORMS, 2011-05)
    Popularity information is usually thought to reinforce existing sales trends by encour- aging customers to ock to mainstream products with broad appeal. We suggest a countervailing market force: popularity information ...
  • Zoccolan, Davide; Rust, Nicole C.; DiCarlo, James (Elsevier, 2012-02)
    Mounting evidence suggests that ‘core object recognition,’ the ability to rapidly recognize objects despite substantial appearance variation, is solved in the brain via a cascade of reflexive, largely feedforward computations ...
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