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Browsing MIT Open Access Articles by Title

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  • Hartman, Hyman; Smith, Temple (MDPI AG, 2014-05)
    The evolution of the genetic code is mapped out starting with the aminoacyl tRNA-synthetases and their interaction with the operational code in the tRNA acceptor arm. Combining this operational code with a metric based on ...
  • Siryaporn, Albert; Perchuk, Barrett; Laub, Michael T. (Nature Publishing Group, 2010-12)
    We have evolved a robust two-component signal transduction pathway from a sensor kinase (SK) and non-partner response regulator (RR) that show weak cross-talk in vitro and no detectable cross-talk in vivo in wild-type ...
  • Siryaporn, Albert; Goulian, Mark; Perchuk, Barrett; Laub, Michael T. (Nature Publishing Group, 2010-12)
    We have evolved a robust two‐component signal transduction pathway from a sensor kinase (SK) and non‐partner response regulator (RR) that show weak cross‐talk in vitro and no detectable cross‐talk in vivo in wild‐type ...
  • Russell, D. M.; Russell, T. D.; Miller-Jones, J. C. A.; O'Brien, K.; Soria, R.; Sivakoff, G. R.; Slaven-Blair, T.; Lewis, F.; Markoff, Sera B.; Altamirano, D.; Curran, P. A.; Rupen, M. P.; Belloni, Tomaso M.; Cadolle Bel, M.; Casella, P.; Corbel, S.; Dhawan, V.; Fender, R. P.; Gallo, Elena; Gandhi, P.; Heinz, Sebastian; Körding, E. G.; Krimm, H. A.; Maitra, D.; Migliari, S.; Sarazin, C. L.; Shahbaz, T.; Tudose, V.; Homan, Jeroen; Remillard, Ronald Alan (IOP Publishing, 2013-04)
    We report striking changes in the broadband spectrum of the compact jet of the black hole transient MAXI J1836–194 over state transitions during its discovery outburst in 2011. A fading of the optical-infrared (IR) flux ...
  • Costinot, Arnaud; Donaldson, Dave; Smith, Cory Benjamin (University of Chicago Press, 2015-12-12)
    A large agronomic literature models the implications of climate change for a variety of crops and locations around the world. The goal of the present paper is to quantify the macro-level consequences of these micro-level ...
  • Thangavelautham, Jekanthan; El Samid, Nader Abu; Grouchy, Paul; Earon, Ernest; Fu, Terence; Nagrani, Nagina; D'Eleuterio, Gabriele M. T. (Institute of Electrical and Electronics Engineers, 2010-03)
    Autonomous robotic excavation has often been limited to a single robotic platform using a specified excavation vehicle. This paper presents a novel method for developing scalable controllers for use in multirobot scenarios ...
  • DeLong, Edward (Nature Publishing Group, 2009-05)
    Numerically, microbial species dominate the oceans, yet their population dynamics, metabolic complexity and synergistic interactions remain largely uncharted. A full understanding of life in the ocean requires more than ...
  • Jaishankar, Aditya; McKinley, Gareth H. (Wiley Blackwell, 2014-03)
    Microchannel gas flows are of importance in a wide range of microelectro mechanical devices. In these flows, the mean free path of the gas can be comparable to the characteristic length of the microchannel, leading to ...
  • Demirtas, Sefa; Su, Guolong; Oppenheim, Alan V. (Institute of Electrical and Electronics Engineers (IEEE), 2013-05)
    Signal processing is a discipline in which functional composition and decomposition can potentially be utilized in a variety of creative ways. From an analysis point of view, further insight can be gained into existing ...
  • Tenenbaum, Joshua B.; Jonas, Eric M.; Roy, Daniel; Mansinghka, Vikash K. (Journal of Machine Learning Research, 2009-04)
    We introduce _adaptive sequential rejection sampling_, an algorithm for generating exact samples from high-dimensional, discrete distributions, building on ideas from classical AI search. Just as systematic search algorithms ...
  • Ba, Demba E.; Babadi, Behtash; Purdon, Patrick; Brown, Emery N. (Neural Information Processing Systems Foundation, Inc., 2012-12)
    We consider the problem of recovering a sequence of vectors, (Xk)[K over k=0], for which the increments X[subscript k] - X[subscript k-1] are S[subscript k]-sparse (with S[subscript k] typically smaller than S[subscript ...
  • Materassi, Donatello; Roychowdhury, Subhrajit; Hays, Thomas; Salapaka, Murti (BioMed Central Ltd, 2013-11)
    Background: Intracellular transport is crucial for many cellular processes where a large fraction of the cargo is transferred by motor-proteins over a network of microtubules. Malfunctions in the transport mechanism ...
  • Chindelevitch, Leonid; Trigg, Jason; Regev, Aviv; Berger, Bonnie (Nature Publishing Group, 2014-10)
    Constraint-based models are currently the only methodology that allows the study of metabolism at the whole-genome scale. Flux balance analysis is commonly used to analyse constraint-based models. Curiously, the results ...
  • Chester, Shai M.; Lee, Jaehoon; Pufu, Silviu S.; Yacoby, Ran (Springer-Verlag, 2015-03)
    We use the superconformal bootstrap to derive exact relations between OPE coefficients in three-dimensional superconformal field theories with N ≥ 4 supersymmetry. These relations follow from a consistent truncation of the ...
  • Mueller, Timothy K.; Ceder, Gerbrand (American Physical Society, 2010-08)
    The cluster expansion has proven to be a valuable tool in materials science to predict properties of configurationally ordered and disordered structures but the generation of cluster expansions can be computationally ...
  • Freivogel, Benjamin W.; McGreevy, John; Suh, Sunok Josephine (American Physical Society, 2012-05)
    Any conformal field theory (CFT) on a sphere supports completely undamped collective oscillations. We discuss the implications of this fact for studies of thermalization using AdS/CFT. Analogous oscillations occur in ...
  • Adams, Allan; Lawrence, Albion; Swanson, Ian (American Physical Society, 2009-11)
    We construct exact two-dimensional conformal field theories, corresponding to closed string tachyon and metric profiles invariant under shifts in a null coordinate, which can be constructed from any two-dimensional ...
  • Jafferis, Daniel L.; Pufu, Silviu S. (Springer-Verlag/International School for Advanced Studies (SISSA), 2014-05)
    We apply the technique of supersymmetric localization to exactly compute the S [superscript 5] partition function of several large N superconformal field theories in five dimensions that have AdS6 duals in massive type IIA ...
  • Geng, You-Lin; Yuan, Ning; Qiu, Cheng-Wei (Institute of Electrical and Electronics Engineers, 2009-03)
    Electromagnetic fields in uniaxial anisotropic media can be obtained based on spherical vector wave functions in isotropic media. Applying the boundary conditions of electromagnetic fields on each interface of an impedance ...
  • Rha, ChoKyun; Brigham, Christopher J.; Sinskey, Anthony J.; Reimer, Esther N. (Springer, 2012-04)
    Polyhydroxyalkanoates (PHA) are biodegradable polymers that are attractive materials for use in tissue engineering and medical device manufacturing. Ralstonia eutropha is regarded as the model organism for PHA biosynthesis. ...
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