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Browsing MIT Open Access Articles by Title

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  • Kovash, Michael A.; Daub, Brian; French, Jennifer Erin; Hanzl, Vladimir; Shoniyozov, Khayrullo; Matthews, June L.; Miller, Zachary; Yang, Hongwei (Institute of Electrical and Electronics Engineers, 2011-06)
    We report on recent efforts to design a solid plastic scintillation hodoscope to measure neutron production cross sections at low energies. Our program includes not only the development of the detector itself, but also a ...
  • Gorbachev, R. V.; Yu, G. L.; Kretinin, A. V.; Withers, F.; Cao, Y.; Mishchenko, A.; Grigorieva, I. V.; Novoselov, K. S.; Geim, A. K.; Song, Justin Chien Wen; Levitov, Leonid (American Association for the Advancement of Science (AAAS), 2014-09)
    Topological materials may exhibit Hall-like currents flowing transversely to the applied electric field even in the absence of a magnetic field. In graphene superlattices, which have broken inversion symmetry, topological ...
  • Liu, Xiong-Jun; Law, K. T.; Ng, T. K.; Lee, Patrick A. (American Physical Society, 2013-09)
    Chern insulators are band insulators which exhibit a gap in the bulk and gapless excitations in the edge. Detection of Chern insulators is a serious challenge in cold atoms since the Hall transport measurements are technically ...
  • Biswas, Rahul; Brady, Patrick R.; Burguet-Castell, Jordi; Cannon, Kipp; Clayton, Jessica; Dietz, Alexander; Fotopoulos, Nickolas; Goggin, Lisa M.; Keppel, Drew; Pankow, Chris; Price, Larry R.; Vaulin, Ruslan (American Physical Society, 2012-06)
    There is a broad class of astrophysical sources that produce detectable, transient, gravitational waves. Some searches for transient gravitational waves are tailored to known features of these sources. Other searches make ...
  • Cambrosio, Alberto; Jones, David Shumway; Mogoutov, Andrei (BioMed Central Ltd, 2011-05)
    Background: Scientists and experts in science policy have become increasingly interested in strengthening translational research. Efforts to understand the nature of translational research and monitor policy interventions ...
  • Jones, David Shumway; Cambrosio, Alberto; Andrei, Mogoutov (BioMed Central Ltd., 2011-05)
    Background Scientists and experts in science policy have become increasingly interested in strengthening translational research. Efforts to understand the nature of translational research and monitor policy interventions ...
  • Tong, Lang; Anandkumar, Animashree; Willsky, Alan S. (Institute of Electrical and Electronics Engineers, 2009-08)
    The problem of binary hypothesis testing is considered when the measurements are drawn from a Markov random field (MRF) under each hypothesis. Spatial dependence of the measurements is incorporated by explicitly modeling ...
  • Andronesi, Ovidiu C.; Kim, Grace S.; Gerstner, Elizabeth; Batchelor, Tracy; Tzika, Aria A.; Fantin, Valeria R.; Vander Heiden, Matthew G.; Sorensen, A. Gregory (American Association for the Advancement of Science, 2012-01)
    Mutations in the gene isocitrate dehydrogenase 1 (IDH1) are present in up to 86% of grade II and III gliomas and secondary glioblastoma. Arginine 132 (R132) mutations in the enzyme IDH1 result in excess production of the ...
  • Mocz, Philip; Lee, Julia C.; Iwasawa, Kazushi; Canizares, Claude R. (IOP Publishing, 2011-02)
    We analyze the Chandra High Energy Transmission Grating Spectrometer observation of the Seyfert 2 AGN IRAS 18325-5926. We detect a v = –360[superscript +41] [subscript –66] km s[superscript –1] blueshifted ionized absorber ...
  • el Kaliouby, Rana; Mikhail, Mina (Institute of Electrical and Electronics Engineers, 2010-01)
    With recent advances in machine vision, automatic detection of human expressions in video is becoming important especially because human labeling of videos is both tedious and error prone. In this paper, we present an ...
  • Fang, Taotao; Buote, David A.; Humphrey, Phillip J.; Canizares, Claude R. (IOP Publishing, 2011-03)
    Since the launch of the Einstein X-ray Observatory in the 1970s, a number of broad absorption features have been reported in the X-ray spectra of BL Lac objects. These features are often interpreted as arising from ...
  • Gillon, M.; Deming, D.; Lovis, C.; Cubillos, P.; Harrington, J.; Stevenson, K. B.; Mayor, M.; Pepe, F.; Queloz, D.; Ségransan, D.; Udry, S.; Demory, Brice-Olivier; Valencia, Diana; Seager, Sara; Benneke, Bjoern (EDP Sciences, 2011-09)
    We report on the detection of a transit of the super-Earth 55 Cnc e with warm Spitzer in IRAC’s 4.5 μm band. Our MCMC analysis includes an extensive modeling of the systematic effects affecting warm Spitzer photometry, and ...
  • Li, Ping; Chakraborty, Sumit; Stubbe, JoAnne (American Chemical Society (ACS), 2009-08)
    Polyhydroxybutyrate (PHB) synthases catalyze the conversion of 3-hydroxybutyryl coenzyme A (HBCoA) to PHB with a molecular mass of 1.5 MDa. The class III synthase from Allochromatium vinosum is a tetramer of PhaEPhaC (each ...
  • Coughlin, Joseph F.; Feron, Eric; Mao, Zhi-Hong; Pilutti, Tom; Tijerina, Louis; Yang, Ji Hyun (Institute of Electrical and Electronics Engineers (IEEE), 2009-06)
    This paper aims to provide reliable indications of driver drowsiness based on the characteristics of driver-vehicle interaction. A test bed was built under a simulated driving environment, and a total of 12 subjects ...
  • Swager, Timothy Manning; Esser, Birgit (Wiley Blackwell, 2010-10)
    Ripe fruits: The fluorescence of a conjugated polymer is quenched by the presence of copper(I) moieties. Upon exposure to ethylene gas the copper complexes bind to ethylene and no longer quench the polymer fluorescence ...
  • Swager, Timothy Manning; Andrew, Trisha Lionel (American Chemical Society (ACS), 2011-03)
    The nitramine-containing explosive RDX and the nitroester-containing explosive PETN are shown to be susceptible to photofragmentation upon exposure to sunlight. Model compounds containing nitroester and nitramine moieties ...
  • Fitzmaurice, Maryann; Gardecki, Joseph A.; Angheloiu, George O.; Awasthi, Samir; Motz, Jason T.; Kramer, John R.; Feld, Michael S.; Scepanovic, Obrad R.; Dasari, Ramachandra Rao (SPIE, 2006-03)
    Vulnerable plaques, which are responsible for most acute ischemic events, are presently invisible to x-ray angiography. Their primary morphological features include a thin or ulcerated fibrous cap, a large necrotic core, ...
  • O’Donovan, Francis T.; Charbonneau, David; Harrington, Joseph; Madhusudhan, Nikku; Seager, Sara (IOP Publishing, 2010-02)
    We present here the results of our observations of TrES-2 using the Infrared Array Camera on Spitzer. We monitored this transiting system during two secondary eclipses, when the planetary emission is blocked by the star. ...
  • Manke, Kara Jean; Maznev, Alexei; Klieber, C.; Temnov, Vasily V.; Makarov, D.; Baek, S.-H.; Eom, C.-B.; Nelson, Keith Adam (American Institute of Physics, 2012-07)
    Short acoustic pulses are generated in SrRuO[subscript 3] transducers and detected at the surface of gold films by transient reflectivity. Contrary to expectations, acoustic pulses that are shorter than the optical skin ...
  • Jin, Hong; Heller, Daniel A.; Kalbacova, Marie; Kim, Jong-Ho; Zhang, Jingqing; Boghossian, Ardemis A.; Maheshri, Narendra; Strano, Michael S. (Nature Publishing Group, 2010-03)
    An emerging concept in cell signalling is the natural role of reactive oxygen species such as hydrogen peroxide (H₂O₂) as beneficial messengers in redox signalling pathways. The nature of H₂O₂ signalling is confounded, ...
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