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Browsing MIT Open Access Articles by Title

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  • Barak, Boaz; Brandao, Fernando G.S.L.; Harrow, Aram W.; Steurer, David; Zhou, Yuan; Kelner, Jonathan Adam (Association for Computing Machinery (ACM), 2012-05)
    We study the computational complexity of approximating the 2-to-q norm of linear operators (defined as |A|[subscript 2->q] = max[subscript v≠ 0]|Av|[subscript q]/|v|[subscript 2]) for q > 2, as well as connections between ...
  • Kedlaya, Kiran S.; Sutherland, Andrew Victor (American Mathematical Society, 2009-01)
    We analyze the distribution of unitarized L-polynomials Lp(T) (as p varies) obtained from a hyperelliptic curve of genus g [less than or equal to] 3 defined over Q. In the generic case, we find experimental agreement with ...
  • Unknown author (American Physical Society, 2013-02)
    We use hyperentangled photons to experimentally implement an entanglement-assisted quantum process tomography technique known as direct characterization of quantum dynamics. Specifically, hyperentanglement-assisted Bell-state ...
  • Tiburzi, Brian C.; Jiang, Fu-Jiun (American Physical Society, 2010-02)
    The pion-mass dependence of hyperon electromagnetic properties is determined using two-flavor heavy baryon chiral perturbation theory. Specifically we compute chiral corrections to the charge radii, magnetic moments, and ...
  • Beane, S. R.; Chang, E.; Cohen, S. D.; Detmold, William; Lin, H. W.; Luu, T. C.; Orginos, K.; Savage, M. J.; Walker-Loud, A.; Parreno, A. (American Physical Society, 2012-10)
    The low-energy nΣ[superscript -] interactions determine, in part, the role of the strange quark in dense matter, such as that found in astrophysical environments. The scattering phase shifts for this system are obtained ...
  • Fraser, Cameron S.; Bertuccelli, Luca F.; Choi, Han-Lim; How, Jonathan P. (Institute of Electrical and Electronics Engineers, 2010-07)
    This paper addresses the problem of information consensus in a team of networked agents with uncertain local estimates described by parameterized distributions in the exponential family. In particular, the method utilizes ...
  • Pacula, Maciej; Ansel, Jason Andrew; Amarasinghe, Saman P.; O'Reilly, Una-May (Springer Berlin / Heidelberg, 2012-03)
    We are using bandit-based adaptive operator selection while autotuning parallel computer programs. The autotuning, which uses evolutionary algorithm-based stochastic sampling, takes place over an extended duration and ...
  • Osterweil, Emily; Krueger, Dilja D.; Reinhold, Kimberly; Bear, Mark (Society for Neuroscience, 2010-11)
    Fragile X syndrome (FXS) is caused by loss of the FMR1 gene product FMRP (fragile X mental retardation protein), a repressor of mRNA translation. According to the metabotropic glutamate receptor (mGluR) theory of FXS, ...
  • Manolakis, Dimitris G.; Lockwood, Ronald B.; Cooley, T.; Jacobson, J. (Society of Photo-optical Instrumentation Engineers, 2009-08)
    There are two broad classes of hyperspectral detection algorithms.1, 2 Algorithms in the first class use the spectral covariance matrix of the background clutter; in contrast, algorithms in the second class characterize ...
  • Lehman, Li-Wei H.; Saeed, Mohammed; Moody, George B.; Mark, Roger Greenwood (Institute of Electrical and Electronics Engineers, 2010-09)
    In the context of critical illness, hypotension may be associated with acute kidney injury (AKI). Using the MIMIC II database, we studied the risk of AKI in ICU patients as a function of both the severity and duration of ...
  • Lee, J.; Mark, Roger Greenwood (IEEE Computer Society, 2011-03)
    In the intensive care unit (ICU), prompt therapeutic intervention to hypotensive episodes (HEs) is a critical task. Advance alerts that can prospectively identify patients at risk of developing an HE in the next few hours ...
  • Polyanskiy, Yury (Institute of Electrical and Electronics Engineers (IEEE), 2012-07)
    This paper investigates the best achievable performance by a hypothesis test satisfying a structural constraint: two functions are computed at two different terminals and the detector consists of a simple comparator verifying ...
  • Ng, Shengyong; March-Riera, Sandra; Galstian, Ani; Hanson, Kirsten; Carvalho, Tania; Mota, Maria M.; Bhatia, Sangeeta N. (Company of Biologists, 2013-11)
    Homeostasis of mammalian cell function strictly depends on balancing oxygen exposure to maintain energy metabolism without producing excessive reactive oxygen species. In vivo, cells in different tissues are exposed to a ...
  • Natter, Marc D.; Quan, Justin; Ortiz, David M.; Bousvaros, Athos; Ilowite, Norman T.; Inman, Christi J.; Marsolo, Keith; McMurry, Andrew J.; Sandborg, Christy I.; Schanberg, Laura E.; Wallace, Carol A.; Warren, Robert W.; Weber, Griffin M.; Mandl, Kenneth D. (BMJ Publishing Group, 2012-06)
    Objective: Registries are a well-established mechanism for obtaining high quality, disease-specific data, but are often highly project-specific in their design, implementation, and policies for data use. In contrast to the ...
  • Crew, Geoffrey B.; Allegrini, F.; Demkee, D.; Funsten, H. O.; McComas, D. J.; Randol, B.; Rodriguez, B.; Schwadron, N. A.; Valek, P.; Weidner, S. (Springer Netherlands, 2008-10)
    The IBEX Background Monitor (IBaM) provides a small and lightweight method for independently measuring IBEX’s high-energy proton background by integrating the flux of >~14 keV protons over a ~7° conical FOV. The IBaM is ...
  • Bissonnette, Sarah A.; Rivera Rivera, Izarys; Sauer, Robert T.; Baker, Tania (Blackwell Scientific Publications, 2010-02)
    Small heat-shock proteins (sHSPs) are a widely conserved family of molecular chaperones, all containing a conserved α-crystallin domain flanked by variable N- and C-terminal tails. We report that IbpA and IbpB, the sHSPs ...
  • Hedman, Elliott Bruce; Wilder-Smith, Oliver; Goodwin, Matthew; Poh, Ming-Zher; Fletcher, Richard Ribon; Picard, Rosalind W. (Institute of Electrical and Electronics Engineers, 2009-12)
    The iCalm sensor is a wireless, wearable, washable wristband that can measure electrodermal activity and physical activity in almost any natural setting. This platform has many applications including health monitoring for ...
  • Dobson, Kelly; Fletcher, Richard Ribon; Goodwin, Matthew; Eydgahi, Hoda; Wilder-Smith, Oliver; Fernholz, David; Kuboyama, Yuta; Hedman, Elliott Bruce; Poh, Ming-Zher; Picard, Rosalind W. (Institute of Electrical and Electronics Engineers (IEEE), 2010-03)
    Widespread use of affective sensing in healthcare applications has been limited due to several practical factors, such as lack of comfortable wearable sensors, lack of wireless standards, and lack of low-power affordable ...
  • Landau, Idan; Bobaljik, Jonathan David (MIT Press, 2009-12)
    A rich literature on Icelandic syntax has established that infinitival complements of obligatory control verbs constitute a case assignment domain independent from the matrix clause, and in this differ systematically from ...
  • Friedman, Beth; Kulkarni, Gourihar; Beránek, Josef; Zelenyuk, Alla; Thornton, Joel A.; Cziczo, Daniel James (American Geophysical Union (AGU), 2011-09)
    We have studied ice formation at temperatures relevant to homogeneous and heterogeneous ice nucleation, as well as droplet activation and hygroscopicity, of soot particles of variable size and composition. Coatings of ...
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