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Browsing MIT Open Access Articles by Title

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  • Baustian, Kelly J.; Cziczo, Daniel James; Wise, Matthew E.; Pratt, Kerri A.; Kulkarni, Gourihar; Hallar, A. Gannet; Tolbert, Margaret A. (American Geophysical Union (AGU), 2012-03)
    In this study chemical compositions of background aerosol and ice nuclei were examined through laboratory investigations using Raman spectroscopy and field measurements by single-particle mass spectrometry. Aerosol sampling ...
  • Ashford, Nicholas A.; Hall, Ralph P. (MDPI AG, 2011-01)
    This article explores the complex relationship between environmental regulation, innovation, and sustainable development within the context of an increasingly globalizing economy. The economic development, environment, and ...
  • Hristova, Daniela; Wu, Chia-Hung; Jiang, Wei; Krebs, Carsten; Stubbe, JoAnne (American Chemical Society (ACS), 2008-03)
    Ribonucleotide reductases (RNRs) catalyze the conversion of nucleotides to deoxynucleotides in all organisms. The Escherichia coli class Ia RNR is composed of α and β subunits that form an α[subscript 2]β[subscript 2] ...
  • Biesheuvel, P. M.; Soestbergen, M. van; Bazant, Martin Z. (Elsevier B.V., 2009-08)
    We analyze the steady-state behavior of a general mathematical model for reversible galvanic cells, such as redox flow cells, reversible solid oxide fuel cells, and rechargeable batteries. We consider not only operation ...
  • Carvajal, Rodolfo; Constantino, Miguel; Goycoolea, Marcos; Vielma, Juan Pablo; Weintraub, Andres (Institute for Operations Research and the Management Sciences (INFORMS), 2013-07)
    Connectivity requirements are a common component of forest planning models, with important examples arising in wildlife habitat protection. In harvest scheduling models, one way of addressing preservation concerns consists ...
  • Aaronson, Scott (Hasso-Plattner-Institut für Softwaresystemtechnik GmbH, 2011-01)
    We show that any quantum algorithm to decide whether a function f:\left[n\right] \rightarrow\left[ n\right] is a permutation or far from a permutation\ must make \Omega\left( n^{1/3}/w\right) queries to f, even if the ...
  • Brennan, Thomas J.; Lo, Andrew W. (Institute for Operations Research and the Management Sciences, 2010-06)
    A key result of the capital asset pricing model (CAPM) is that the market portfolio—the portfolio of all assets in which each asset's weight is proportional to its total market capitalization—lies on the mean-variance-efficient ...
  • Yunes, Nicolas; Kocsis, Bence; Loeb, Abraham; Haiman, Zoltan (American Physical Society (APS), 2011-10)
    We study the effects of a thin gaseous accretion disk on the inspiral of a stellar-mass black hole into a supermassive black hole. We construct a phenomenological angular momentum transport equation that reproduces known ...
  • Orlin, James B. (Association for Computing Machinery, 2010-06)
    We give the first strongly polynomial time algorithm for computing an equilibrium for the linear utilities case of Fisher's market model. We consider a problem with a set B of buyers and a set G of divisible goods. Each ...
  • Ohlson, Tomas; Aggarwal, Varun; Elofsson, Arne; MacCallum, Robert M. (BioMed Central Ltd, 2006-07)
    Background Protein sequence alignment is one of the basic tools in bioinformatics. Correct alignments are required for a range of tasks including the derivation of phylogenetic trees and protein structure prediction. ...
  • Manurangsi, Pasin; Moshkovitz, Dana (Springer-Verlag, 2013)
    The projection games (aka Label-Cover) problem is of great importance to the field of approximation algorithms, since most of the NP-hardness of approximation results we know today are reductions from Label-Cover. In this ...
  • Wong, Liang Jie; Johnson, Steven G.; Kaertner, Franz X. (Optical Society of America, 2014-02)
    We derive an asymptotically accurate formula for the beam waist of ultrashort, tightly focused fundamental linearly polarized, radially polarized, and azimuthally polarized modes in free space. We compute the exact beam ...
  • Hoeppner, Marc P.; Lundquist, Andrew; Pirun, Mono; Meadows, Jennifer R. S.; Zamani, Neda; Johnson, Jeremy; Sundström, Görel; Cook, April; FitzGerald, Michael G.; Swofford, Ross; Mauceli, Evan; Moghadam, Behrooz Torabi; Greka, Anna; Alföldi, Jessica; Abouelleil, Amr; Aftuck, Lynne; Bessette, Daniel; Berlin, Aaron; Brown, Adam; Gearin, Gary; Lui, Annie; Macdonald, J. Pendexter; Priest, Margaret; Shea, Terrance; Turner-Maier, Jason; Zimmer, Andrew; Lander, Eric S.; di Palma, Federica; Lindblad-Toh, Kerstin; Grabherr, Manfred G. (Public Library of Science, 2014-03)
    The domestic dog, Canis familiaris, is a well-established model system for mapping trait and disease loci. While the original draft sequence was of good quality, gaps were abundant particularly in promoter regions of the ...
  • Ma, Xiaohua; Hautier, Geoffroy; Jain, Anubhav; Doe, Robert; Ceder, Gerbrand (Electrochemical Society, 2012-12)
    We present a layered Li-intercalation oxide that operates on the V[superscript 3+]/V[superscript 4+] redox couple. The stabilization effect of adding a +3 element into the layered LiVO[subscript 2] has been studied by first ...
  • Naeser, Margaret A.; Saltmarche, Anita; Krengel, Maxine H.; Hamblin, Michael R.; Knight, Jeffrey A. (Mary Ann Liebert, Inc., 2011-05)
    Objective: Two chronic, traumatic brain injury (TBI) cases, where cognition improved following treatment with red and near-infrared light-emitting diodes (LEDs), applied transcranially to forehead and scalp areas, are ...
  • Boyce, J. W.; Hodges, Kip Vernon; King, D.; Crowley, J. L.; Jercinovic, M.; Chatterjee, Nilanjan; Bowring, Samuel A.; Searle, M. (American Geophysical Union (AGU), 2009-09)
    The newly developed laser microprobe (U-Th)/He thermochronometer permits, for the first time, the ability to generate precise (U-Th)/He cooling ages for even very young (<1 Ma) samples with a spatial resolution on the order ...
  • McMurry, Andrew J; Fitch, Britt; Savova, Guergana; Reis, Ben Y; Kohane, Isaac (BioMed Central Ltd, 2013-10)
    Background: Physician notes routinely recorded during patient care represent a vast and underutilized resource for human disease studies on a population scale. Their use in research is primarily limited by the need to ...
  • Yang, Yung-Hun; Brigham, Christopher J.; Willis, Laura B.; Rha, ChoKyun; Sinskey, Anthony J. (Springer, 2011-01)
    Extracting polyhydroxyalkanoate (PHA) polymer from bacterial cells often involves harsh conditions, including use of environmentally harmful solvents. We evaluated different detergents under various conditions to extract ...
  • Glatt, Vaida; Miller, Micah; Ivkovic, Alan; Liu, Fangjun; Parry, Nicola; Griffin, Damian; Vrahas, Mark; Evans, Christopher (Journal of Bone and Joint Surgery, Inc., 2012-11)
    Background: Large segmental defects in bone do not heal well and present clinical challenges. This study investigated modulation of the mechanical environment as a means of improving bone healing in the presence of bone ...
  • Cowan, Ray Franklin; Dujmic, Denis; Sciolla, Gabriella (American Physical Society, 2012-09)
    We establish improved upper limits on branching fractions for B[superscript 0] decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for final states where the ...
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