Now showing items 9192-9211 of 18296

    • M Dwarf Activity in the Pan-Starrs1 Medium-Deep Survey: First Catalog and Rotation Periods 

      Kado-Fong, E.; Williams, Peter Kelsey George; Mann, A.W.; Berger, Edo; Burgett, W.S.; Chambers, K.C.; Huber, M.E.; Kaiser, N.; Kudritzki, R.P.; Magnier, E.A.; Rest, A.; Wainscoat, R.J.; Waters, C. (American Astronomical Society, 2016-12-21)
      We report on an ongoing project to investigate activity in the M dwarf stellar population observed by the Pan-STARRS 1 Medium Deep Survey (PS1-MDS). Using a custom-built pipeline, we refine an initial sample of ∼4 million ...
    • M-DPOP: Faithful Distributed Implementations of Efficient Social Choice Problems 

      Petcu, Adrian; Faltings, Boi; Parkes, David (AAAI Press, 2008)
      In the efficient social choice problem, the goal is to assign values, subject to side constraints, to a set of variables to maximize the total utility across a population of agents, where each agent has private information ...
    • Mach, Einstein, and the Search for Reality 

      Holton, Gerald (MIT Press, 1968)
    • Machiavelli, Civic Humanism, and the Humanist Politics of Virtue 

      Hankins, James (Maney Publishing, 2014)
      Modern studies of Italian humanist political thought emphasize the theme of republican liberty, but this conception has been understood in anachronistic ways and exaggerated in importance. Much more central is the problem ...
    • Machine Behaviour 

      Cebrian Ramos, Manuel; Christakis, Nicholas A.; Couzin, Iain D.; Jackson, Matthew O.; Jennings, Nicholas R.; Kamar, Ece; Kloumann, Isabel M.; Larochelle, Hugo; Lazer, David; McElreath, Richard; Mislove, Alan; Parkes, David; Pentland, Alex ‘Sandy’; Roberts, Margaret E.; Shariff, Azim; Tenenbaum, Joshua B.; Wellman, Michael; Rahwan, Iyad; Obradovich, Nick; Bongard, Josh; Bonnefon, Jean-François; Breazeal, Cynthia; Crandall, Jacob (Springer Science and Business Media LLC, 2019-04)
      Machines powered by artificial intelligence increasingly mediate our social, cultural, economic and political interactions. Understanding the behaviour of artificial intelligence systems is essential to our ability to ...
    • Machine learning exciton dynamics 

      Hase, Florian; Valleau, Stephanie; Pyzer-Knapp, Edward; Aspuru-Guzik, Alan (Royal Society of Chemistry (RSC), 2016)
      Obtaining the exciton dynamics of large photosynthetic complexes by using mixed quantum mechanics/molecular mechanics (QM/MM) is computationally demanding. We propose a machine learning technique, multi-layer perceptrons, ...
    • Machine learning of neural representations of suicide and emotion concepts identifies suicidal youth 

      Just, Marcel Adam; Pan, Lisa; Cherkassky, Vladimir L.; McMakin, Dana L.; Cha, Christine; Nock, Matthew K.; Brent, David (Springer Nature, 2017)
      Retraction to: Nature Human Behaviour https://doi.org/10.1038/s41562-017-0234-y published online 30 October 2017 The authors are retracting this article after concerns were raised about the validity of their machine ...
    • Machine learning theory and practice as a source of insight into universal grammar. 

      Lappin, Shalom; Shieber, Stuart (Cambridge University Press, 2007)
      In this paper, we explore the possibility that machine learning approaches to natural-language processing being developed in engineering-oriented computational linguistics may be able to provide specific scientific insights ...
    • Macrocyclic bis-thioureas catalyze stereospecific glycosylation reactions 

      Park, Yongho; Harper, Kaid; Kuhl, Nadine; Kwan, Eugene; Liu, Richard; Jacobsen, Eric (American Association for the Advancement of Science (AAAS), 2017-01-12)
      Carbohydrates are involved in nearly all aspects of biochemistry, but their complex chemical structures present long-standing practical challenges to their synthesis. In particular, stereochemical outcomes in glycosylation ...
    • Macroeconomic Policy and Elections in OECD Democracies 

      Alesina, Alberto; Cohen, Gerald; Roubini, Nouriel (Blackwell Publishing, 1992)
      The purpose of this paper is to test for evidence of opportunistic "political business cycles" in a large sample of 18 OECD economies. Our results can be summarized as follows: 1) We find very little evidence of pre-electoral ...
    • Macroeconomic Policy in a Two-party System as a Repeated Game 

      Alesina, Alberto (MIT Press, 1987)
      This paper considers the interaction of two parties with different objectives concerning inflation and unemployment and rational and forward-looking wage-setters. If discretionary policies are followed, an economic cycle ...
    • Macrophage VLDL Receptor Promotes PAFAH Secretion in Mother’s Milk and Suppresses Systemic Inflammation in Nursing Neonates 

      Du, Yang; Yang, Marie; Wei, Wei; Huynh, Hoang Dinh; Herz, Joachim; Saghatelian, Alan; Wan, Yihong (Nature Publishing Group, 2012)
      Mother’s milk is widely accepted as nutritious and protective to the newborn mammals by providing not only macronutrients but also immune-defensive factors. However, the mechanisms accounting for these benefits are not ...
    • Macroporous Nanowire Nanoelectronic Scaffolds for Synthetic Tissues 

      Tian, Bozhi; Liu, Jia; Dvir, Tal; Jin, Lihua; Tsui, Jonathan H.; Qing, Quan; Suo, Zhigang; Langer, Robert S.; Kohane, Daniel Solomon; Lieber, Charles M. (Nature Publishing Group, 2012)
      The development of three-dimensional (3D) synthetic biomaterials as structural and bioactive scaffolds is central to fields ranging from cellular biophysics to regenerative medicine. As of yet, these scaffolds cannot ...
    • Macroscopic and microscopic entropy of near-extremal spinning black holes 

      Breckenridge, J. C.; Lowe, D. A.; Myers, R. C.; Peet, A. W.; Strominger, A.; Vafa, C. (Elsevier, 1996)
      A seven-parameter family of five-dimensional black hole solutions depending on mass, two angular momenta, three charges and the asymptotic value of a scalar field is constructed. The entropy is computed as a function of ...
    • Macroscopic Carbonaceous Compressions in a Terminal Proterozoic Shale: A Systematic Reassessment of the Miaohe Biota, South China 

      Xiao, Shuhai; Yuan, Xunlai; Steiner, Michael; Knoll, Andrew (Society of Economic Paleontologists and Mineralogists, 2002)
      Carbonaccous compression fossils in shales of the uppermost Doushantuo Formation (ca. 555-590 Ma) at Miaohe in the Yangtze Gorges area provide a rare Burgess-Shale-type taphonomic window on terminal Proterozoic biology. ...
    • A macroscopic device described by a Boltzmann-like distribution 

      Tricard, Simon; Stan, Claudiu A.; Shakhnovich, Eugene Isaacovitch; Whitesides, George McClelland (Royal Society of Chemistry (RSC), 2013)
      Equilibrium thermodynamic phenomena such as the Maxwell-Boltzmann distribution of molecular velocities are rare in systems of macroscopic particles interacting by mechanical collisions. This paper reports a system composed ...
    • Macroscopic Magnetic Frustration 

      Mellado, Paula; Concha, Andres; Mahadevan, L. (American Physical Society, 2012)
      Although geometrical frustration transcends scale, it has primarily been evoked in the micro- and mesoscopic realm to characterize such phases as spin ice, liquids, and glasses and to explain the behavior of such materials ...
    • Mad2 and Mad3 Cooperate to Arrest Budding Yeast in Mitosis 

      Lau, Derek T. C.; Murray, Andrew W. (Elsevier, 2012)
      Background: The spindle checkpoint ensures accurate chromosome transmission by delaying chromosome segregation until all chromosomes are correctly aligned on the mitotic spindle. The checkpoint is activated by kinetochores ...
    • Madagasikaria (Malpighiaceae): A New Genus from Madagascar with Implications for Floral Evolution in Malpighiaceae 

      Davis, Charles (Botanical Society of America, 2002)
      <i>Madagasikaria andersonii</i> is described here as a new genus and species of Malpighiaceae from Madagascar. The phylogenetic placement of Madagasikaria was estimated by using combined data from <i>ndhF</i> and <i>trnL-F</i> ...
    • Mademoiselle Bonafon and the Private Life of Louis XV: Communication Circuits in Eighteenth-Century France 

      Darnton, Robert (University of California Press, 2004)
      In 1745 a chambermaid in Versailles was shut up in the Bastille for publishing a roman à clef about the sex life of Louis XV. In attempting to get to the bottom of the case, the police uncovered some remarkable information ...