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Browsing MIT Open Access Articles by Title
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(Wiley Blackwell, 2009-07)The acquisition of Pavlovian fear learning engages the hippocampus when the conditioned stimuli are multimodal or temporally isolated from the unconditioned stimuli. By subjecting CA3-NR1 KO mice to conditioning protocols ...
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(Association for Computing Machinery (ACM), 2012-04)We present Masstree, a fast key-value database designed for SMP machines. Masstree keeps all data in memory. Its main data structure is a trie-like concatenation of B+-trees, each of which handles a fixed-length slice of ...
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(Society for Industrial and Applied Mathematics, 2010-01)Several existing cache-oblivious dynamic dictionaries achieve O(logB N) (or slightly better O(logB N over M )) memory transfers per operation, where N is the number of items stored, M is the memory size, and B is ...
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(Institute of Electrical and Electronics Engineers, 2009-08)We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. In the most general form, this can be analyzed by considering the 2[superscript n] timesn-dimensional ...
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(National Academy of Sciences (U.S.), 2011-03)Variable expressivity of mutant phenotypes in genetically identical individuals is a phenomenon widely reported but poorly understood. For example, mutations in the gene encoding the transcription factor ALR-1 in Caenorhabditis ...
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The Caenorhabditis elegans Gene mfap-1 Encodes a Nuclear Protein That Affects Alternative Splicing (Public Library of Science, 2012-07)RNA splicing is a major regulatory mechanism for controlling eukaryotic gene expression. By generating various splice isoforms from a single pre–mRNA, alternative splicing plays a key role in promoting the evolving complexity ...
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(National Academy of Sciences (U.S.), 2011-08)Caenorhabditis elegans exhibits a diverse range of behaviors in response to bacteria. The presence of bacterial food influences C. elegans aerotaxis, aggregation, locomotion, and pathogen avoidance behaviors through the ...
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(Public Library of Science, 2011-12)The Caenorhabditis elegans class A and B synthetic multivulva (synMuv) genes redundantly antagonize an EGF/Ras pathway to prevent ectopic vulval induction. We identify a class A synMuv mutation in the promoter of the lin-3 ...
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(National Academy of Sciences, 2012-05)DegP, a member of the highly conserved HtrA family, performs quality-control degradation of misfolded proteins in the periplasm of Gram-negative bacteria and is required for high-temperature survival of Escherichia coli. ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2011)This paper concerns the problem of calculating expectation shift due to variability which tends to occur whenever the function of a random variable is nonlinear and especially tends to occur in the neighborhood of a local ...
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(American Physical Society, 2010-11)We present an efficient and accurate computational approach to study phase-coherent quantum transport in molecular and nanoscale electronics. We formulate a Green’s-function method in the recently developed ab initio ...
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(Institute of Electrical and Electronics Engineers, 2009-11)The ITER transmission lines (TLs) must be designed to deliver 20 MW from a 24 MW, 170 GHz gyrotron system. Miter bends are the main source of loss for these highly overmoded, corrugated, cylindrical waveguide TLs. Previous ...
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(American Physical Society, 2011-04)We show how to compute Casimir forces at nonzero temperatures with time-domain electromagnetic simulations, for example, using a finite-difference time-domain (FDTD) method. Compared to our previous zero-temperature ...
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(American Physical Society, 2013-02)We present the theoretical analysis and computer simulation of the wakefields in a 17 GHz photonic band-gap (PBG) structure for accelerator applications. Using the commercial code CST Particle Studio, the fundamental ...
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(Institute of Electrical and Electronics Engineers, and the Association for Computing Machinery, 2009-06)Transmission rate adaptation in wireless devices provides a unique opportunity to trade off data service rate with energy consumption. In this paper, we study optimal rate control to minimize transmission energy expenditure ...
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(IRL Press at Oxford University Press, 2010-02)Huntingtin protein (Htt) is ubiquitously expressed, yet Huntington’s disease (HD), a fatal neurologic disorder produced by expansion of an Htt polyglutamine tract, is characterized by neurodegeneration that occurs primarily ...
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(University of Chicago Press, The, 2012-11)We characterize the near-IR sky background from 308 observations with the Folded-port InfraRed Echellette (FIRE) spectrograph at Magellan. A subset of 105 observations selected to minimize lunar and thermal effects gives ...
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(British Medical Association, 2009-09)WHO has revised its definition of pandemic flu in response to current experience with A/H1N1. Peter Doshi argues that our plans for pandemics need to take into account more than the worst case scenarios
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(Institute of Electrical and Electronic Engineers, 2009-03)This paper presents a technique and a device for measuring the permittivity and conductivity of liquids and gases that does not require prior calibration by a reference sample. The technique involves precisely controlling ...
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(Springer Netherlands, 2009-04)Early emergence of plant seedlings can offer strong competitive advantages over later-germinating neighbors through the preemption of limiting resources. This phenomenon may have contributed to the persistent dominance of ...
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