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Browsing MIT Open Access Articles by Title

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  • Hoersch, Sebastian; Mansisidor, Andres R.; Cecere, Germano; Jensen, Morten B.; Kawli, Trupti; Kennedy, Lisa M.; Chavez, Violeta; Tan, Man-Wah; Lieb, Jason D.; Grishok, Alla (Public Library of Science, 2011-09)
    Insulin signaling has a profound effect on longevity and the oxidative stress resistance of animals. Inhibition of insulin signaling results in the activation of DAF-16/FOXO and SKN-1/Nrf transcription factors and increased ...
  • Le, Minh T. N.; Shyh-Chang, Ng; Khaw, Swea Ling; Chin, Lingzi; Teh, Cathleen; Tay, Junliang; O'Day, Elizabeth; Korzh, Vladimir; Yang, Henry; Lal, Ashish; Lieberman, Judy; Lim, Bing; Lodish, Harvey F. (Public Library of Science, 2011-09)
    MicroRNAs regulate networks of genes to orchestrate cellular functions. MiR-125b, the vertebrate homologue of the Caenorhabditis elegans microRNA lin-4, has been implicated in the regulation of neural and hematopoietic ...
  • Choi, Myung Jin; Tan, Vincent Yan Fu; Anandkumar, Animashree; Willsky, Alan S. (Institute of Electrical and Electronics Engineers (IEEE), 2010-09)
    We study the problem of learning a latent tree graphical model where samples are available only from a subset of variables. We propose two consistent and computationally efficient algorithms for learning minimal latent ...
  • Vasudevan, Ramanarayan; Gonzalez, Humberto; Bajcsy, Ruzena; Sastry, S. Shankar; Vasudevan, Ram (Society for Industrial and Applied Mathematics, 2013-12)
    Switched systems, or systems whose control parameters include a continuous-valued input and a discrete-valued input which corresponds to the mode of the system that is active at a particular instance in time, have shown ...
  • Vasudevan, Ram; Gonzalez, Humberto; Bajcsy, Ruzena; Sastry, S. Shankar (Society for Industrial and Applied Mathematics, 2013-01)
    In the first part of this two-paper series, we presented a conceptual algorithm for the optimal control of constrained switched systems and proved that this algorithm generates a sequence of points that converge to a ...
  • Walter, Matthew R.; Bahr, Alexander; Leonard, John Joseph (Institute of Electrical and Electronics Engineers, 2009-07)
    In cooperative navigation, teams of mobile robots obtain range and/or angle measurements to each other and dead-reckoning information to help each other navigate more accurately. One typical approach is moving baseline ...
  • Demaine, Erik D.; Zadimoghaddam, Morteza (Springer Science + Business Media B.V., 2010-01)
    Network creation games have been studied in many different settings recently. These games are motivated by social networks in which selfish agents want to construct a connection graph among themselves. Each node wants to ...
  • Ryu, Jubin; Futai, Kensuke; Feliu, Monica; Sheng, Morgan Hwa-Tze; Weinberg, Richard (Society for Neuroscience, 2008-08)
    Within the Ras superfamily of GTPases, Rap1 and Rap2 are the closest homologs to Ras. In non-neural cells, Rap signaling can antagonize Ras signaling. In neurons, Rap also seems to oppose Ras in terms of synaptic function. ...
  • Dargazany, Roozbeh; Itskov, Mikhail (American Physical Society, 2013-07)
    The large strain behavior of filled rubbers is characterized by the strong Mullins effect, permanent set, and induced anisotropy. Strain controlled cyclic tests also exhibit a pronounced hysteresis as a strain rate independent ...
  • Meuleman, Wouter; Peric-Hupkes, Daan; Kind, Jop; Beaudry, Jean-Bernard; Pagie, Ludo; Kellis, Manolis; Reinders, Marcel; Wessels, Lodewyk; van Steensel, Bas (Cold Spring Harbor Laboratory Press, 2012-11)
    In metazoans, the nuclear lamina is thought to play an important role in the spatial organization of interphase chromosomes, by providing anchoring sites for large genomic segments named lamina-associated domains (LADs). ...
  • Unterweger, Daniel; Kitaoka, Maya; Miyata, Sarah T.; Bachmann, Verena; Brooks, Teresa M.; Moloney, Jessica; Sosa, Oscar Abraham; Silva, David; Duran-Gonzalez, Jorge; Provenzano, Daniele; Pukatzki, Stefan (Public Library of Science, 2012-10)
    The type VI secretion system (T6SS) mediates protein translocation across the cell membrane of Gram-negative bacteria, including Vibrio cholerae – the causative agent of cholera. All V. cholerae strains examined to date ...
  • Nedic, Angelia; Ozdaglar, Asuman E.; Parrilo, Pablo A. (Institute of Electrical and Electronics Engineers, 2010-04)
    We present distributed algorithms that can be used by multiple agents to align their estimates with a particular value over a network with time-varying connectivity. Our framework is general in that this value can represent ...
  • Kaduk, Benjamin J.; Kowalczyk, Timothy Daniel; Van Voorhis, Troy (American Chemical Society (ACS), 2011-11)
  • Ho, Shih-Hao (American Physical Society (APS), 2011-09)
    We show that the recently considered McGreevy-Swingle model for Majorana fermions in the presence of a ’t Hooft-Polyakov magnetic monopole arises when the Jackiw-Rebbi model is constrained to be conjugation self dual.
  • Peters, Charee L.; Lopez, Laura A.; Ramirez-Ruiz, Enrico; Stassun, Keivan G.; Figueroa-Feliciano, Enectali (American Astronomical Society, 2013-07)
    Determination of the explosion type of supernova remnants (SNRs) can be challenging, as SNRs are hundreds to thousands of years old and supernovae are classified based on spectral properties days after explosion. Previous ...
  • Yunes, Nicolas; Mirshekari, Saeed; Will, Clifford M. (American Physical Society, 2012-01)
    Modified gravity theories generically predict a violation of Lorentz invariance, which may lead to a modified dispersion relation for propagating modes of gravitational waves. We construct a parametrized dispersion relation ...
  • Stein, David B.; Schoen, T. Ryan; Rus, Daniela L. (Institute of Electrical and Electronics Engineers (IEEE), 2011-12)
    This paper presents a constraint-aware decentralized approach to construction with teams of robots. We present an extension to existing work on a distributed controller for robotic construction of simple structures. Our ...
  • Mitros, Piotr (Institute of Electrical and Electronics Engineers, 2008-06)
    We describe a methodology for solving convex constraint problems using analog circuits. We demonstrate how this methodology can be used to design circuits that solve function-fitting problems through iterated gradient ...
  • Hagelstein, Peter L. (Springer-Verlag, 2010-02)
    In recent Fleischmann–Pons experiments carried out by different groups, a thermal signal is seen indicative of excess energy production of a magnitude much greater than can be accounted for by chemistry. Correlated with ...
  • Rahi, Sahand Jamal; Kardar, Mehran (American Physical Society, 2010-08)
    We examine whether fluctuation-induced forces can lead to stable levitation. First, we analyze a collection of classical objects at finite temperature that contain fixed and mobile charges and show that any arrangement in ...
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