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Browsing MIT Open Access Articles by Title

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  • Berman, Piotr; Demaine, Erik D.; Zadimoghaddam, Morteza (Springer Berlin / Heidelberg, 2011-08)
    We develop constant-factor approximation algorithms for minimizing the maximum movement made by pebbles on a graph to reach a configuration in which the pebbles form a connected subgraph (connectivity), or interconnect a ...
  • Wildschutte, Hans; Preheim, Sarah Pacocha; Hernandez, Yasiel; Polz, Martin F. (Blackwell Publishing, 2010-11)
    The O-antigen is a highly diverse structure expressed on the outer surface of Gram-negative bacteria. The products responsible for O-antigen synthesis are encoded in the wbe region, which exhibits extensive genetic diversity. ...
  • Ericksen, Russell E.; Rose, Shannon; Westphalen, Christoph Benedikt; Shibata, Wataru; Muthupalani, Sureshkumar; Tailor, Yagnesh; Friedman, Richard A.; Han, Weiping; Fox, James G.; Ferrante, Anthony W.; Wang, Timothy C. (BMJ Publishing Group, 2013-05)
    Objective: To investigate the role of obesity-associated inflammation and immune modulation in gastric carcinogenesis during Helicobacter-induced chronic gastric inflammation. Design: C57BL/6 male mice were infected ...
  • Carlin, Bruce Ian; Manso, Gustavo (Oxford University Press for the Society for Financial Studies, 2010-09)
    Investor sophistication has lagged behind the growing complexity of retail financial markets. To explore this, we develop a dynamic model to study the interaction between obfuscation and investor sophistica- tion in ...
  • Zhang, Ying; Meyers, Ethan M.; Bichot, Narcisse Pascal; Serre, Thomas R.; Poggio, Tomaso A.; Desimone, Robert (National Academy of Sciences (U.S.), 2011-05)
    Recognizing objects in cluttered scenes requires attentional mechanisms to filter out distracting information. Previous studies have found several physiological correlates of attention in visual cortex, including larger ...
  • Santos, Miguel A.; Turinsky, Andrei L.; Ong, Serene; Tsai, Jennifer; Berger, Michael F.; Badis, Gwenael; Talukder, Shaheynoor; Gehrke, Andrew R.; Hughes, Timothy R.; Wodak, Shoshana J.; Bulyk, Martha L. (Oxford University Press (OUP), 2010-08)
    Classifying proteins into subgroups with similar molecular function on the basis of sequence is an important step in deriving reliable functional annotations computationally. So far, however, available classification ...
  • Holladay, Anne E.; Barry, Jennifer; Kaelbling, Leslie P.; Lozano-Perez, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2013-05)
    We present an approach to robust placing that uses movable surfaces in the environment to guide a poorly grasped object into a goal pose. This problem is an instance of the inverse motion planning problem, in which we solve ...
  • Hsiao, Kai-yuh; Tellex, Stefanie; Vosoughi, Soroush; Kubat, Rony; Roy, Deb K. (2008-12)
    An approach is introduced for physically grounded natural language interpretation by robots that reacts appropriately to unanticipated physical changes in the environment and dynamically assimilates new information pertinent ...
  • Hsiao, Kai-yuh; Vosoughi, Soroush; Tellex, Stefanie; Kubat, Rony; Roy, Deb K. (Association for Computing Machinery, 2008)
    The use of natural language should be added to a robot system without sacrificing responsiveness to the environment. In this paper, we present a robot that manipulates objects on a tabletop in response to verbal interaction. ...
  • Hare, Caspar (Wiley Periodicals, Inc., 2011-01)
    It is natural to distinguish between objective and subjective senses of ‘ought’. Roughly: what you ought to do in the objective sense has to do with the merits and demerits of the options available to you, while what you ...
  • Hare, Caspar (Journal of Philosophy, Inc., 2012-05)
    In some cases the morality of action is an inter‐personal affair. I am obliged to do something and there is a person to whom I am obliged to do it. I do wrong and there is a person I wrong. Some routine examples: I do ...
  • Winn, Joshua Nathan; Johnson, John Asher; Howard, Andrew W.; Marcy, Geoffrey W.; Isaacson, Howard; Shopper, Avi; Bakos, Gaspar A.; Hartman, Joel D.; Albrecht, Simon H. (IOP Publishing, 2010-10)
    We find the orbit of the Neptune-sized exoplanet HAT-P-11b to be highly inclined relative to the equatorial plane of its host star. This conclusion is based on spectroscopic observations of two transits, which allowed the ...
  • Alam, Mohammad-Reza; Liu, Yuming; Yue, Dick K. P. (Cambridge University Press, 2010-01)
    We consider a class of higher order (quartet) Bragg resonance involving two incident wave components and a bottom ripple component (so called class III Bragg resonance). In this case, unlike class I/II Bragg resonance ...
  • Albrecht, Simon H.; Winn, Joshua Nathan; Johnson, John A.; Howard, Andrew W.; Marcy, Geoffrey W.; Butler, R. Paul; Arriagada, Pamela; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Hirano, Teruyuki; Bakos, Gaspar; Hartman, Joel D. (IOP Publishing, 2012-08)
    We provide evidence that the obliquities of stars with close-in giant planets were initially nearly random, and that the low obliquities that are often observed are a consequence of star-planet tidal interactions. The ...
  • Sengupta, Sudipta; Lakshman, T. V.; Kodialam, Murali; Orlin, James B. (Institute of Electrical and Electronics Engineers, 2009-04)
    The emergence of new applications on the Internet like voice-over-IP, peer-to-peer, and video-on-demand has created highly dynamic and changing traffic patterns. In order to route such traffic with quality-of-service (QoS) ...
  • Liu, Yang-Yu; Slotine, Jean-Jacques E.; Barabasi, Albert-Laszlo (National Academy of Sciences (U.S.), 2013-01)
    A quantitative description of a complex system is inherently limited by our ability to estimate the system’s internal state from experimentally accessible outputs. Although the simultaneous measurement of all internal ...
  • Kocsis, Bence; Loeb, Abraham; Yunes, Nicolas (American Physical Society, 2011-07)
    We examine the electromagnetic and gravitational wave (GW) signatures of stellar-mass compact objects (COs) spiraling into a supermassive black hole (extreme mass-ratio inspirals), embedded in a thin, radiation-pressure ...
  • Acemoglu, Daron; Dahleh, Munther A.; Ozdaglar, Asuman E.; Tahbaz Salehi, Alireza (Institute of Electrical and Electronics Engineers, 2011-02)
    We study a model of observational learning in social networks in the presence of uncertainty about agents' type distributions. Each individual receives a private noisy signal about a payoff-relevant state of the world, and ...
  • Lee, Jeongwon; Zhen, Bo; Chua, Song Liang; Qiu, Wenjun; Joannopoulos, John D.; Soljacic, Marin; Shapira, Ofer (American Physical Society, 2012-08)
    We demonstrate and distinguish experimentally the existence of a special type of Fano resonances at k≈0 in a macroscopic two-dimensional photonic crystal slab. We fabricate a square lattice array of holes in a silicon ...
  • Fisher, Peter H.; Cowan, Ray Franklin; Dujmic, Denis; Henderson, Shawn Wesley; Sciolla, Gabriella; Spitznagel, M.; Yamamoto, R. K.; Zhao, M. (American Physical Society, 2009-11)
    We present measurements of the branching fraction B and longitudinal polarization fraction fL for B0-->a1(1260)+a1(1260)- decays, with a1(1260)±-->pi-pi+pi±. The data sample, collected with the BABAR detector at the SLAC ...
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