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Browsing MIT Open Access Articles by Title

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  • Levine, Alan M.; Bradt, Hale V.; Chakrabarty, Deepto; Corbet, Robin H. D.; Harris, Robert J. (Institute of Physics Publishing, 2011-08)
    We present the results of a systematic search in ~14 years of Rossi X-ray Timing Explorer All-Sky Monitor (ASM) data for evidence of periodicities. Two variations of the commonly used Fourier analysis search method have ...
  • Werner, N.; Oonk, J. B. R.; Veilleux, S.; McDonald, Michael A. (IOP Publishing, 2015-04)
    While the cooling of the hot intracluster medium (ICM) in the cores of galaxy clusters is mostly counteracted by heating from the central active galactic nucleus (AGN), the balance is not perfect. This can lead to residual ...
  • Sullivan, Joseph Timothy; Buonassisi, Tonio; Said, Aurore J.; Recht, Daniel; Warrender, Jeffrey M.; Persans, Peter D.; Aziz, Michael J. (American Institute of Physics (AIP), 2011-08)
    Highly supersaturated solid solutions of selenium or sulfur in silicon were formed by ion implantation followed by nanosecond pulsed laser melting. n[superscript +]p photodiodes fabricated from these materials exhibit gain ...
  • Busza, Wit (Elsevier, 2011-01)
    Multiparticle production of charged particles at high energies exhibit the phenomenon of Limiting Fragmentation. Furthermore, the region in rapidity over which the production of particles appears to be independent of energy, ...
  • Tsuchimochi, Takashi; Van Voorhis, Troy (American Institute of Physics (AIP), 2014-10)
    We present a novel method that appropriately handles both dynamical and static electron correlations in a balanced manner, using a perturbation theory on a spin-extended Hartree-Fock (EHF) wave function reference. While ...
  • Garcia-Marin, M.; Eckart, A.; Weiss, A.; Witzel, G.; Bremer, M.; Zamaninasab, M.; Morris, M. R.; Schodel, R.; Kunneriath, D.; Nishiyama, S.; Baganoff, Frederick K.; Dovciak, Michal; Sabha, N.; Duschl, W. J.; Moultaka, J.; Karas, Vladimir; Najarro, F.; Muzic, K.; Straubmeier, C.; Vogel, S. N.; Krips, M.; Wiesemeyer, H. (Institute of Physics/American Astronomical Society, 2011-09)
    The innermost tens of parsecs of our Galaxy are characterized by the presence of molecular cloud complexes surrounding Sgr A*, the radiative counterpart of the supermassive black hole (~4 × 10[superscript 6] M ☉) at the ...
  • Mandilara, Aikaterini; Karpov, Evgueni; Cerf, Nicolas J. (American Physical Society, 2009-06)
    According to Hudson’s theorem, any pure quantum state with a positive Wigner function is necessarily a Gaussian state. Here, we make a step toward the extension of this theorem to mixed quantum states by finding upper and ...
  • Poonen, Bjorn (European Math Society, 2013)
    Using the closed point sieve, we extend to finite fields the following theorem proved by A. Bhatnagar and L. Szpiro over infinite fields: if X is a closed subscheme of P[superscript n] over a field, and φ: X → X satisfies ...
  • Widiyantoro, S.; Kennett, B. L. N.; van der Hilst, R. D.; van der Hilst, Robert D. (Springer Berlin Heidelberg, 2014-06)
    Seismic tomography using S wave travel times faces the difficulty imposed by the interference between S and SKS phases near 83° epicentral distance, as the SKS phase overtakes the S waves in the mantle. If the cross-over ...
  • Goodman, Joel I.; Miller, Benjamin A.; Herman, Matthew; Vai, Mankuan Michael; Monticciolo, Paul (Institute of Electrical and Electronics Engineers, 2009-03)
    Systems currently being developed to operate across wide bandwidths with high sensitivity requirements are limited by the inherent dynamic range of a receiver's analog and mixed-signal components. To increase a receiver's ...
  • Peraud, Jean-Philippe M.; Hadjiconstantinou, Nicolas (American Physical Society, 2016-01)
    We derive the continuum equations and boundary conditions governing phonon-mediated heat transfer in the limit of a small but finite mean-free path from the asymptotic solution of the linearized Boltzmann equation in the ...
  • Haward, Simon J.; Oliveira, Monica S. N.; Alves, Manuel A.; Jaishankar, Aditya; McKinley, Gareth H. (American Institute of Physics (AIP), 2013-07)
    We utilize a recently developed microfluidic device, the Optimized Shape Cross-slot Extensional Rheometer (OSCER), to study the elongational flow behavior and rheological properties of hyaluronic acid (HA) solutions ...
  • Timmerman, Chayil S.; Wright, Michael; Brick, Todd A. (Institute of Electrical and Electronics Engineers, 2009-10)
    In 2007, MIT Lincoln Laboratory began supporting the United States Air Force (USAF) MILSATCOM family of advanced beyond line of sight terminals increment 2 (FAB-T Inc 2) program. The Laboratory led the development and ...
  • Rangan, Sundeep; Fletcher, Alyson K.; Goyal, Vivek K. (Institute of Electrical and Electronics Engineers (IEEE), 2010-07)
    The replica method is a non-rigorous but widely-accepted technique from statistical physics used in the asymptotic analysis of large, random, nonlinear problems. This paper applies the replica method to analyze non-Gaussian ...
  • Bertschinger, Edmund; Prescod-Weinstein, Chanda (IOP Publishing, 2015-03)
    The Legendre transformation on singular Lagrangians, e.g. Lagrangians representing gauge theories, fails due to the presence of constraints. The Faddeev–Jackiw technique, which offers an alternative to that of Dirac, is a ...
  • Moitra, Ankur; Leighton, Frank Thomson (Association for Computing Machinery (ACM), 2010-06)
    Suppose we are given a graph G = (V, E) and a set of terminals K ⊂ V. We consider the problem of constructing a graph H = (K, E[subscript H]) that approximately preserves the congestion of every multicommodity flow with ...
  • Megias, G. D.; Barbaro, M. B.; Caballero, J. A.; Donnelly, T. William; Gonzalez-Jimenez, R. (American Physical Society, 2014-09)
    We present a systematic analysis of the quasielastic scaling functions computed within the relativistic mean field (RMF) theory and we propose an extension of the superscaling approach (SuSA) model based on these results. ...
  • Kopparty, Swastik; Saraf, Shubhangi; Sudan, Madhu; Dvir, Zeev (Institute of Electrical and Electronics Engineers, 2009-10)
    We extend the "method of multiplicities" to get the following results, of interest in combinatorics and randomness extraction. 1) We show that every Kakeya set (a set of points that contains a line in every direction) in ...
  • Ulitsky, Igor; Shkumatava, Alena; Jan, Calvin H.; Subtelny, Alexander Orest; Koppstein, David Neal Pira; Bell, George W.; Sive, Hazel L.; Bartel, David (Cold Spring Harbor Laboratory Press, 2012-06)
    The post-transcriptional fate of messenger RNAs (mRNAs) is largely dictated by their 3′ untranslated regions (3′ UTRs), which are defined by cleavage and polyadenylation (CPA) of pre-mRNAs. We used poly(A)-position profiling ...
  • Hung, Tiffany; Wang, Yulei; Lin, Michael F.; Koegel, Ashley K.; Kotake, Yojiro; Grant, Gavin D.; Horlings, Hugo M.; Shah, Nilay; Umbricht, Christopher; Wang, Pei; Wang, Yu; Kong, Benjamin; Langerød, Anita; Børresen-Dale, Anne-Lise; Kim, Seung K.; van de Vijver, Marc; Sukumar, Saraswati; Whitfield, Michael L.; Kellis, Manolis; Xiong, Yue; Wong, David J.; Chang, Howard Y.; Lin, Michael F. (Nature Publishing Group, 2011-06)
    Transcription of long noncoding RNAs (lncRNAs) within gene regulatory elements can modulate gene activity in response to external stimuli, but the scope and functions of such activity are not known. Here we use an ...
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