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Browsing MIT Open Access Articles by Title

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  • Schmitt, Raymond W.; Schanze, Julian Johannes (American Meteorological Society, 2013-04)
    Owing to the larger thermal expansion coefficient at higher temperatures, more buoyancy is put into the ocean by heating than is removed by cooling at low temperatures. The authors show that, even with globally balanced ...
  • Tewelde, Yodit; Perron, J. Taylor; Miller, Scott; Ford, Peter Gerald; Black, Benjamin Alexander (American Geophysical Union (AGU), 2013-10)
    Titan has few impact craters, suggesting that its surface is geologically young. Titan's surface also has abundant landforms interpreted to be fluvial networks. Here we evaluate whether fluvial erosion has caused significant ...
  • Raymond, Peter A.; Bohlen, W. Frank; Howard-Strobel, Mary M.; Collins, James Robert (Springer-Verlag, 2012-10)
    Biogeochemical cycles in estuaries are regulated by a diverse set of physical and biological variables that operate over a variety of time scales. Using in situ optical sensors, we conducted a high-frequency time-series ...
  • Bhatia, Gaurav; Patterson, Nick; Sankararaman, Sriram; Price, Alkes L. (Cold Spring Harbor Laboratory Press, 2013-07)
    In a pair of seminal papers, Sewall Wright and Gustave Malécot introduced F[subscript ST] as a measure of structure in natural populations. In the decades that followed, a number of papers provided differing definitions, ...
  • Luquette, Lovelace J.; Kharchenko, Peter V.; Day, Daniel Sindt; Park, Peter J. (Springer (Biomed Central Ltd.), 2010-06)
    We describe computational methods for analysis of repetitive elements from short-read sequencing data, and apply them to study histone modifications associated with the repetitive elements in human and mouse cells. Our ...
  • Perron, J. Taylor; Burr, Devon M.; Drummond, Sarah A.; Black, Benjamin Alexander (American Geophysical Union (AGU), 2012-08)
    Drainage networks on Titan, Earth, and Mars provide the only known examples of non-volcanic fluvial activity in our solar system. The drainage networks on Titan are apparently the result of a methane-ethane cycle similar ...
  • Menze, Bjoern Holger; Kelm, Bernd Michael; Nix, Oliver; Zechmann, Christian M.; Hamprecht, Fred A. (Institute of Electrical and Electronics Engineers, 2009-09)
    Dynamic contrast-enhanced magnetic resonance (DCE-MR) imaging can be used to study microvascular structure in vivo by monitoring the abundance of an injected diffusible contrast agent over time. The resulting spatially ...
  • Almond, Douglas; Doyle, Joseph J.; Kowalski, Amanda E.; Williams, Heidi L. (MIT Press, 2010-04)
    A key policy question is whether the benefits of additional medical expenditures exceed their costs. We propose a new approach for estimating marginal returns to medical spending based on variation in medical inputs generated ...
  • Veitch, J.; Mandel, Ilya; Aylott, B. E.; Farr, B.; Raymond, V.; Rodriguez, C.; van der Sluys, M.; Kalogera, V.; Vecchio, A. (American Physical Society, 2012-05)
    The advanced versions of the LIGO and Virgo ground-based gravitational-wave detectors are expected to operate from three sites: Hanford, Livingston, and Cascina. Recent proposals have been made to place a fourth site in ...
  • Tcaciuc, Alexandra Patricia; Nelson, Robert Gregory; Reddy, Christopher M.; Gschwend, Philip M. (American Chemical Society (ACS), 2012-03)
    Recent studies have shown that membrane–water partition coefficients of organic chemicals can be used to predict bioaccumulation and type I narcosis toxicity more accurately than the traditional K[subscript OW]-based ...
  • Bokhari, Sheharyar; Geltner, David M. (Springer Science + Business Media B.V., 2010-07)
    Indexes of commercial property prices face much scarcer transactions data than housing indexes, yet the advent of tradable derivatives on commercial property places a premium on both high frequency and accuracy of such ...
  • Fraser, A.; Palmer, P. I.; Feng, L.; Boesch, H.; Cogan, A.; Parker, R.; Dlugokencky, E.; Fraser, P. J.; Krummel, P. B.; Langenfelds, R. L.; O'Doherty, S.; Steele, L. P.; van der Schoot, M.; Weiss, R. F.; Prinn, Ronald G. (Copernicus GmbH, 2013-06)
    We use an ensemble Kalman filter (EnKF), together with the GEOS-Chem chemistry transport model, to estimate regional monthly methane (CH[subscript 4]) fluxes for the period June 2009–December 2010 using proxy dry-air ...
  • Ehinger, Krista A.; Xiao, Jianxiong; Torralba, Antonio; Oliva, Aude (Cognitive Science Society, Inc., 2011-07)
    Scenes, like objects, are visual entities that can be categorized into functional and semantic groups. One of the core concepts of human categorization is the idea that category membership is graded: some exemplars are ...
  • Klocker, Andreas; Ferrari, Raffaele; LaCasce, Joseph H. (American Meteorological Society, 2012-09)
    Particle- and tracer-based estimates of lateral diffusivities are used to estimate the suppression of eddy mixing across strong currents. Particles and tracers are advected using a velocity field derived from sea surface ...
  • Crepon, Bruno; Devoto, Florencia; Duflo, Esther; Pariente, William (American Economic Association, 2015-01)
    We report results from a randomized evaluation of a microcredit program introduced in rural areas of Morocco in 2006. Thirteen percent of the households in treatment villages took a loan, and none in control villages did. ...
  • Bertsatos, Ioannis; Makris, Nicholas (American Institute of Physics/Acoustical Society of America, 2011)
    Doppleranalysis has been extensively used in active radar and sonar sensing to estimate the speed and direction of a single target within an imaging system resolution cell following deterministic theory. For target swarms, ...
  • Bisias, Dimitrios; Lo, Andrew W.; Watkins, James F. (Public Library of Science, 2012-05)
    Background: The National Institutes of Health (NIH) is among the world’s largest investors in biomedical research, with a mandate to: “…lengthen life, and reduce the burdens of illness and disability.” Its funding ...
  • Broderick, Avery E.; Fish, Vincent L.; Loeb, Abraham; Doeleman, Sheperd Samuel (IOP Publishing, 2009-05)
    Recent millimeter-VLBI observations of Sagittarius A* (Sgr A*) have, for the first time, directly probed distances comparable to the horizon scale of a black hole. This provides unprecedented access to the environment ...
  • Zhu, Laiyin; Quiring, Steven M.; Emanuel, Kerry Andrew (American Geophysical Union, 2013-12)
    This paper uses a new rainfall algorithm to simulate the long-term tropical cyclone precipitation (TCP) climatology in Texas based on synthetic tropical cyclones generated from National Center for Atmospheric Research/National ...
  • Finkelstein, Amy; Einav, Liran; Cullen, Mark R. (MIT Press Journals, 2010-08)
    We provide a graphical illustration of how standard consumer and producer theory can be used to quantify the welfare loss associated with inefficient pricing in insurance markets with selection. We then show how this welfare ...
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