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Browsing MIT Open Access Articles by Title

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  • Berger, Carola F.; Marcantonini, Claudio; Stewart, Iain; Tackmann, Frank; Waalewijn, Wouter J. (Springer-Verlag, 2011-04)
    A major ingredient in Higgs searches at the Tevatron and LHC is the elimination of backgrounds with jets. In current H → WW → lνlν searches, jet algorithms are used to veto central jets to obtain a 0-jet sample, which ...
  • Gai, Annie; Wittrup, Karl Dane; Pancer, Zeev; Mariuzza, Roy A.; Flajnik, Martin F.; Xu, Gang; Velikovsky, C. Alejandro; Tasumi, Satoshi (United States National Academy of Sciences, 2009-06)
    Lamprey are members of the ancestral vertebrate taxon (jawless fish), which evolved rearranging antigen receptors convergently with the jawed vertebrates. But instead of Ig superfamily domains, lamprey variable lymphocyte ...
  • Demory, Brice-Olivier; Seager, Sara (IOP Publishing, 2011-06)
    Hot Jupiters are expected to be dark from both observations (albedo upper limits) and theory (alkali metals and/or TiO and VO absorption). However, only a handful of hot Jupiters have been observed with high enough photometric ...
  • Gopinath, Juliet; Hong, Kyung-Han; Siddiqui, Aleem M.; Moses, Jeffrey; Lai, Chien-Jen; Hybl, John D.; Fan, Tso Yee (Institute of Electrical and Electronics Engineers, 2009-08)
    We report on a 300-W-level picosecond laser based on a cryogenically-cooled Yb:YAG amplifier seeded by a fiber CPA system. High-average-power picosecond second harmonic generation is also presented.
  • Lu, Bin; Palacios, Tomas (Institute of Electrical and Electronics Engineers (IEEE), 2010-07)
    In this letter, we present a new technology to increase the breakdown voltage of AlGaN/GaN high-electron-mobility transistors (HEMTs) grown on Si substrates. This new technology is based on the removal of the original Si ...
  • Wu, Chaohong; Hong, Pengyu; Schulte, Joost; Sepp, Katharine J.; Littleton, J. Troy (Public Library of Science, 2011-08)
    To identify Huntington's Disease therapeutics, we conducted high-content small molecule and RNAi suppressor screens using a Drosophila primary neural culture Huntingtin model. Drosophila primary neurons offer a sensitive ...
  • Gire, Stephen; Ellis, Crystal; Calderwood, Stephen; Qadri, Firdausi; Hensley, Lisa; Kellis, Manolis; Ryan, Edward T; LaRocque, Regina C; Harris, Jason B; Sabeti, Pardis C; Sealfon, Rachel Sima (BioMed Central Ltd, 2012-09)
    AbstractBackgroundWhole-genome sequencing is an important tool for understanding microbial evolution and identifying the emergence of functionally important variants over the course of epidemics. In October 2010, a severe ...
  • Belloni, Alexandre; Chernozhukov, Victor V. (Springer Science + Business Media B.V., 2011)
    In this chapter we discuss conceptually high dimensional sparse econometric models as well as estimation of these models using ℓ1-penalization and post- ℓ1-penalization methods. Focusing on linear and nonparametric ...
  • Zhang, Baile; Wu, Bae-Ian; Chen, Hongsheng (Institute of Electrical and Electronics Engineers (IEEE), 2009-07)
    In this article, we propose a spherical shell-core structure which is able to achieve arbitrarily large directivity. The structure is obtained from coordinate transformation. A small antenna can be projected to free space ...
  • Hsu, W. Chuck; Lu, Yen-Sheng; Chyan, Jung-Yi; Yeh, J. Andrew (Hindawi Publishing Corporation, 2012)
    Multicrystalline silicon (mc-Si) photovoltaic (PV) solar cells with nanoscale surface texturing by metal-nanoparticle-assisted etching are proposed to achieve high power efficiency. The investigation of average nanorod ...
  • Hennessy, J.; Antoniadis, Dimitri A. (Institute of Electrical and Electronics Engineers, 2009-12)
    Germanium n-channel devices have historically shown poor performance due to an asy mmetric distribution of interface st ates that degrade electrostatic behavior and carrier mobility. In this study we demonstrate two methods ...
  • Coppi, Bruno (Institute of Physics, 2009-12)
    The theoretical finding of composite disk structures around compact objects (e.g. black holes) and recent experimental observations indicate that highly coherent and dynamically important magnetic field configurations exist ...
  • Price, Gregory N.; Lee, James R.; Teng, Shang-Hua; Kelner, Jonathan Adam (Institute of Electrical and Electronics Engineers, 2010-03)
    We present a general method for proving upper bounds on the eigenvalues of the graph Laplacian. In particular, we show that for any positive integer k, the kth smallest eigenvalue of the Laplacian on a bounded-degree planar ...
  • Balewski, Jan T.; Betancourt, Michael Joseph; Corliss, Ross Cameron; Hays-Wehle, James Prewitt; Hoffman, A. M.; Jones, Christopher LaDon; Kocoloski, Adam Philip; Leight, William Axel; Milner, Richard G.; Redwine, Robert P.; Sakuma, Tai; Seele, Joseph Patrick; Surrow, Bernd; Nieuwenhuizen, Gerrit van; Walker, Matthew H. (American Physical Society, 2010-07)
    We report the first measurements of the kurtosis (κ [kappa]), skewness (S), and variance (σ [sigma] [superscript 2]) of net-proton multiplicity (N [subscript p]-N [subscript p̅] ) distributions at midrapidity for Au+Au ...
  • Elvira, D.; Hachair, X.; Verma, V. B.; Braive, R.; Beaudoin, G.; Robert-Philip, I.; Sagnes, I.; Baek, B.; Nam, S. W.; Dauler, Eric A.; Abram, I.; Stevens, M. J.; Beveratos, A. (American Physical Society, 2011-12)
    We report on the higher-order photon correlations of a high-β nanolaser under pulsed excitation at room temperature. Using a multiplexed four-element superconducting single-photon detector we measured g(n)(0[superscript ...
  • Behrens, Mark Joseph; Hopkings, M. J. (Oxford University Press, 2011-01)
    Given a maximal finite subgroup G of the nth Morava stabilizer group at a prime p, we address the question: is the associated higher real K-theory EOn a summand of the K(n)-localization of a TAF -spectrum associated to a ...
  • Griffin, Robert Guy; Prisner, T. F. (Royal Society of Chemistry, The, 2010-05)
    Sensitivity is a critical issue in NMR spectroscopy, microscopy and imaging, and the factor that often limits the success of various applications. The origin of low sensitivity in NMR is well known to be due to the small ...
  • Barnes, Alexander; Corzilius, Bjorn; Griffin, Robert Guy; Smith, Albert Andrew; Bertini, Ivano; Luchinat, Claudio (American Chemical Society (ACS), 2011-03)
    We report the dynamic nuclear polarization of 1H spins in magic-angle-spinning spectra recorded at 5 T and 84 K via the solid effect using Mn2+ and Gd[superscript 3+] complexes as polarizing agents. We show that the magnitude ...
  • Fujita, T.; Yamaguchi, H.; Kimura, S.; Kashiwagi, T.; Hagiwara, M.; Matan, K.; Grohol, D.; Nocera, Daniel G.; Lee, Y. S. (American Physical Society, 2012-03)
    We have performed high-field multifrequency electron spin resonance (ESR) and high-field magnetization measurements in magnetic fields H of up to 53 T on single crystals of the kagome-lattice antiferromagnet KFe[subscript ...
  • Zimmerman, Paul A.; Rice, Bryan J.; Piscani, Emil C.; Liberman, Vladimir (Society of Photo-optical Instrumentation Engineers, 2009-03)
    For several years, SEMATECH has invested significant effort into extending 193 nm immersion lithography by developing a set of high index materials. For high index immersion lithography (HIL) to enable 1.70NA imaging, a ...
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