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Browsing MIT Open Access Articles by Title

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  • Jonas, Rahul A.; Yuan, Ti-Fei; Liang, Yu-Xiang; Jonas, Jost B.; Tay, David K. C.; Ellis-Behnke, Rutledge (Public Library of Science, 2012-02)
    The different morphological stages of microglial activation have not yet been described in detail. We transected the olfactory bulb of rats and examined the activation of the microglial system histologically. Six stages ...
  • Walpuski, Thomas (Springer Berlin Heidelberg, 2016-07)
    We prove an existence theorem for Spin(7)-instantons, which are highly concentrated near a Cayley submanifold; thus giving a partial converse to Tian’s foundational compactness theorem (Ann Math (2) 151(1):193–268, 2000). ...
  • Perry, Jonathan; Iannucci, Peter A.; Fleming, Kermin Elliott; Balakrishnan, Hari; Shah, Devavrat (Association for Computing Machinery, 2012-10)
    Spinal codes are a new class of rateless codes that enable wireless networks to cope with time-varying channel conditions in a natural way, without requiring any explicit bit rate selection. The key idea in the code is the ...
  • Zhu, Zheng; Weng, Zheng-Yu; Ho, Tin-Lun (American Physical Society, 2016-03)
    We show that pronounced modulations in spin and charge densities can be induced by the insertion of a single hole in an otherwise half-filled two-leg Hubbard ladder. Accompanied with these modulations is a loosely bound ...
  • Mross, David Fabian; Todadri, Senthil (American Physical Society, 2015-07)
    Spontaneous breaking of translational symmetry, known as density-wave order, is common in nature. However, such states are strongly sensitive to impurities or other forms of frozen disorder leading to fascinating glassy ...
  • Grocholski, Brent; Shim, Sang-Heon Dan; Sturhahn, W.; Zhao, J.; Xiao, Y.; Chow, P. C. (American Geophysical Union, 2009-12)
    The spin and valence states of iron in (Mg0.8Fe0.2)SiO3 perovskite were measured between 0 and 65 GPa using synchrotron Mössbauer spectroscopy. Samples were synthesized in situ in the laser-heated diamond cell under reducing ...
  • Cappellaro, Paola (American Physical Society, 2012-03)
    We present a measurement scheme capable of achieving the quantum limit of parameter estimation using an adaptive strategy that minimizes the parameter's variance at each step. The adaptive rule we propose makes the scheme ...
  • Hasell, Douglas K.; Milner, Richard G.; Redwine, Robert P.; Alarcon, R.; Gao, Haiyan; Kohl, Michael; Calarco, John R. (Annual Reviews, 2011-11)
    The Bates Large Acceptance Spectrometer Toroid (BLAST) experiment was operated at the MIT-Bates Linear Accelerator Center from 2003 until 2005. The experiment was designed to exploit the power of a polarized electron beam ...
  • Schweizer, Nina; Ferras, Cristina; Kern, David Matthew; Logarinho, Elsa; Cheeseman, Iain McPherson; Maiato, Helder (Rockefeller University Press, 2013-12)
    Tpr is a conserved nuclear pore complex (NPC) protein implicated in the spindle assembly checkpoint (SAC) by an unknown mechanism. Here, we show that Tpr is required for normal SAC response by stabilizing Mad1 and Mad2 ...
  • Chan, Leon Y.; Amon, Angelika B. (Elsevier B.V., 2010-08)
    How spatial information is translated into a chemical signal is a fundamental problem in all organisms. The spindle position checkpoint is a prime example of this problem. This checkpoint senses spindle position and, in ...
  • Coldea, Radu; Kimchi, Itamar (American Physical Society, 2016-11)
    Incommensurate spiral order is a common occurrence in frustrated magnetic insulators. Typically, all magnetic moments rotate uniformly, through the same wavevector. However the honeycomb iridates family Li[subscript ...
  • Liu, Miao; Rong, Ziqin; Malik, Rahul; Canepa, Pieremanuele; Jain, Anubhav; Ceder, Gerbrand; Persson, Kristin A. (Royal Society of Chemistry, 2014-12)
    Batteries that shuttle multivalent ions such as Mg[superscript 2+] and Ca[superscript 2+] ions are promising candidates for achieving higher energy density than available with current Li-ion technology. Finding electrode ...
  • Liu, Junwei; Hsieh, Timothy Hwa-wei; Wei, Peng; Duan, Wenhui; Moodera, Jagadeesh; Fu, Liang (Nature Publishing Group, 2013-12)
    Three-dimensional topological crystalline insulators were recently predicted and observed in the SnTe class of IV–VI semiconductors, which host metallic surface states protected by crystal symmetries. In this work, we study ...
  • Medley, Patrick M.; Weld, David M.; Miyake, Hirokazu; Pritchard, David E.; Ketterle, Wolfgang (American Physical Society, 2011-05)
    We demonstrate a new cooling method in which a time-varying magnetic field gradient is applied to an ultracold spin mixture. This enables preparation of isolated spin distributions at positive and negative effective spin ...
  • Weld, David M.; Medley, Patrick M.; Miyake, Hirokazu; Hucul, David; Pritchard, David E.; Ketterle, Wolfgang (American Physical Society, 2009-12)
    We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the ...
  • Emori, Satoru; Martinez, Eduardo; Lee, Kyung-Jin; Lee, Hyun-Woo; Bauer, Uwe; Ahn, Sung-Min; Agrawal, Parnika; Bono, David C.; Beach, Geoffrey Stephen (American Physical Society, 2014-11)
    Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the ...
  • Han, Tianheng; Shrekenhamer, D.; Padilla, W. J.; Pilon, Daniel Victor; Lui, Chun Hung; Frenzel, Alex James; Lee, Young S.; Gedik, Nuh (American Physical Society, 2013-09)
    We report a direct measurement of the low-frequency optical conductivity of large-area single-crystal herbertsmithite, a promising spin-liquid candidate material, by means of terahertz time-domain spectroscopy. In the ...
  • Cheuk, Lawrence W.; Sommer, Ariel Tjodolv; Hadzibabic, Zoran; Yefsah, Tarik; Bakr, Waseem S.; Zwierlein, Martin Wolfram (American Physical Society, 2012-08)
    The coupling of the spin of electrons to their motional state lies at the heart of recently discovered topological phases of matter. Here we create and detect spin-orbit coupling in an atomic Fermi gas, a highly controllable ...
  • Xu, Cenke; Qi, Yang; Balents, Leon; Fisher, Matthew P. A.; Wang, Fa (American Physical Society, 2012-02)
    Motivated by recent experiments on material Ba3NiSb2O9, we propose two novel spin liquid phases (A and B) for spin-1 systems on a triangular lattice. At the mean field level, both spin liquid phases have gapless fermionic ...
  • Shekhar, Karthik; Ruberman, Claire; Ferguson, Andrew L.; Kardar, Mehran; Barton, John P.; Chakraborty, Arup K. (American Physical Society, 2013-12)
    Mutational escape from vaccine-induced immune responses has thwarted the development of a successful vaccine against AIDS, whose causative agent is HIV, a highly mutable virus. Knowing the virus' fitness as a function of ...
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