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Browsing MIT Open Access Articles by Title
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(Institute of Electrical and Electronics Engineers (IEEE), 2010)This paper presents a simultaneous localisation and mapping (SLAM) algorithm implemented on an autonomous sea kayak with a commercial off-the-shelf X-band marine radar mounted. The Autonomous Surface Craft (ASC) was driven ...
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XBP-1 regulates signal transduction, transcription factors and bone marrow colonization in B cells (Nature Publishing Group, 2009-04)XBP-1, a transcription factor that drives the unfolded protein response (UPR), is activated in B cells when they differentiate to plasma cells. Here, we show that in the B cells, whose capacity to secrete IgM has been ...
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(National Academy of Sciences (U.S.), 2012-07)Embryogenesis requires the timely and coordinated activation of developmental regulators. It has been suggested that the recently discovered class of histone demethylases (UTX and JMJD3) that specifically target the ...
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(Institute of Physics Publishing, 2010-05)Autonomous gravitational-wave searches—fully automated analyses of data that run without human intervention or assistance—are desirable for a number of reasons. They are necessary for the rapid identification of ...
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(American Physical Society, 2009-01)We have recently demonstrated that x=0.71 and 0.84 are the two most stable single-phase compounds above x=0.5 in gamma-Na[subscript x]CoO[subscript 2] [G. J. Shu et al., Phys. Rev. B 76, 184115 (2007); F. C. Chou et al., ...
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(Institute of Physics Publishing, 2012-01)We present a microlensing analysis of 61 Chandra observations of 14 quadruply lensed quasars. X-ray flux measurements of the individual quasar images give a clean determination of the microlensing effects in the lensing ...
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(American Astronomical Society, 2009-11)θ(1) Ori E is a young, moderate mass binary system, a rarely observed case of spectral-type G-giants of about 3 solar masses, which are still collapsing toward the main sequence, where they presumably become X-ray faint. ...
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(American Astronomical Society, 2009-05)The observed intergalactic O vi absorbers at z > 0 have been regarded as a significant reservoir of the “missing baryons.” However, to fully understand how these absorbers contribute to the baryon inventory, it is crucial ...
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(Institute of Electrical and Electronics Engineers, 2010-06)One of the instruments on the International X-ray Observatory (IXO), under study with NASA, ESA and JAXA, is the X-ray Microcalorimeter Spectrometer (XMS). This instrument, which will provide high spectral resolution images, ...
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(IOP Publishing, 2003-09)The Orion Trapezium is one of the youngest and closest star-forming regions within our Galaxy. With a dynamic age of ~3 × 10[superscript 5] yr, it harbors a number of very young hot stars, which likely are on the zero-age ...
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(IOP Publishing, 2003-03)With a Chandra ACIS-S3 observation, we detect 42 X-ray point sources in the elliptical galaxy NGC 720, including a possible central source. Most of these sources will be low-mass X-ray binaries, and 12 are located within ...
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(IOP Publishing, 2001-10)We have obtained high-resolution X-ray spectra of the coronally active binary II Pegasi (HD 224085), covering the wavelength range of 1.5-25 Å. For the first half of our 44 ks observation, the source was in a quiescent ...
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(IOP Publishing, 2006-08)Massive stars rarely show intrinsic X-ray variability. One exception is θ[superscript 2] Ori A, which has shown strong variability over the last 5 years. We observed a large outburst of the X-ray source with the High Energy ...
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(Blackwell Publishing, 2009-09)yabA encodes a negative regulator of replication initiation in Bacillus subtilis and homologues are found in many other Gram-positive species. YabA interacts with the β-processivity clamp (DnaN) of DNA polymerase and with ...
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(American Chemical Society, 2009-10)Escherichia coli lipoic acid ligase (LplA) catalyzes ATP-dependent covalent ligation of lipoic acid onto specific lysine side chains of three acceptor proteins involved in oxidative metabolism. Our lab has shown that LplA ...
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(Public Library of Science, 2011-04)FUS/TLS is a nucleic acid binding protein that, when mutated, can cause a subset of familial amyotrophic lateral sclerosis (fALS). Although FUS/TLS is normally located predominantly in the nucleus, the pathogenic mutant ...
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(Elsevier, 2007-01)The observation that mutations in the Escherichia coli genes umuC+ and umuD+ abolish mutagenesis induced by UV light strongly supported the counterintuitive notion that such mutagenesis is an active rather than passive ...
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(Institute of Electrical and Electronics Engineers, 2009-08)This paper proposes an equation-based multi-scenario iterative robust optimization methodology for analog/mixed-signal circuits. We show that due to local circuit performance monotonicity in random variations constraint ...
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(American Physical Society, 2009-11)A Monte Carlo approach allowing for stress control is employed to study the yield stress of a two-dimensional metallic glass in the limit of low temperatures and long (infinite) time scales. The elementary thermally activated ...
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(Wiley-Blackwell Pubishers, 2010-12)1. Introduction I believe that Tom is the proud father of a baby boy. Why do I think his child is a boy? A natural answer might be that I remember that his name is ‘Owen’ which is usually a boy’s name. Here I’ve given ...
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