Now showing items 3970-3989 of 24540

    • Cooperate without looking: Why we care what people think and not just what they do 

      Hoffman, Moshe H.; Yoeli, Erez; Nowak, Martin A. (Proceedings of the National Academy of Sciences, 2015)
      Evolutionary game theory typically focuses on actions but ignores motives. Here, we introduce a model that takes into account the motive behind the action. A crucial question is why do we trust people more who cooperate ...
    • Cooperation and conflict in human pregnancy 

      Haig, David (Elsevier BV, 2019-06)
    • Cooperation and control in multiplayer social dilemmas 

      Hilbe, Christian; Wu, Bin; Traulsen, Arne; Nowak, Martin A. (National Academy of Sciences, 2014)
      Direct reciprocity and conditional cooperation are important mechanisms to prevent free riding in social dilemmas. However, in large groups, these mechanisms may become ineffective because they require single individuals ...
    • Cooperation and the Fate of Microbial Societies 

      Allen, Benjamin Isaac; Nowak, Martin A. (Public Library of Science, 2013)
      Microorganisms have been cooperating with each other for billions of years: by sharing resources, communicating with each other, and joining together to form biofilms and other large structures. These cooperative behaviors ...
    • Cooperation between Polycomb and androgen receptor during oncogenic transformation 

      Zhao, J. C.; Yu, J.; Runkle, C.; Wu, L.; Hu, Ming; Wu, D.; Liu, Jun; Wang, Q.; Qin, Z. S.; Yu, J. (Cold Spring Harbor Laboratory Press, 2011)
      Androgen receptor (AR) is a hormone-activated transcription factor that plays important roles in prostate development and function, as well as malignant transformation. The downstream pathways of AR, however, are incompletely ...
    • Cooperation by Design: Leadership, Structure, and Collective Dilemmas 

      Bianco, William; Bates, Robert (Cambridge University Press, 1990)
      We return to the analysis of cooperation among interdependent rational individuals. We emphasize the limited impact of iteration (or repeated play) and explore the possibility of an alternative: intervention by rational ...
    • Cooperation, decision time, and culture: Online experiments with American and Indian participants 

      Nishi, Akihiro; Christakis, Nicholas; Rand, David G. (Public Library of Science (PLoS), 2017)
      Two separate bodies of work have examined whether culture affects cooperation in economic games and whether cooperative or non-cooperative decisions occur more quickly. Here, we connect this work by exploring the relationship ...
    • Cooperative Asymmetric Catalysis with Squaramide H-Bond Donors and Lewis Acids 

      Levina, Anna (2016-07-28)
      A new mode of cooperative catalysis with chiral squaramide hydrogen-bond donors and trialkylsilyl trifluoromethanesulfonates (triflates) for asymmetric nucleophilic additions to oxocarbenium ions was explored. Evidence is ...
    • Cooperative behavior cascades in human social networks 

      Fowler, J. H.; Christakis, N (Proceedings of the National Academy of Sciences, 2010)
      Theoretical models suggest that social networks influence the evolution of cooperation, but to date there have been few experimental studies. Observational data suggest that a wide variety of behaviors may spread in human ...
    • Cooperative Binding of Sir Proteins to Nucleosomes and Its Implications for Silent Chromatin Assembly in Saccharomyces Cerevisiae 

      Lu, Chenning (2015-05-17)
      Silent chromatin, or heterochromatin, refers to regions of the genome in which genes are constitutively repressed. These regions are important for regulating developmental genes and for maintaining genome stability, and ...
    • Cooperative Emission of Light Quanta: A Theory of Coherent Radiation Damping 

      Glauber, Roy J. (2009)
      A quantum emitted by any of a collection of identical atoms may be absorbed and re-emitted by other atoms many times before it eventually emerges. The radiation process is thus best described as collective or cooperative ...
    • Cooperative Multiagent Search for Portfolio Selection 

      Parkes, David C.; Huberman, Bernardo A. (1998)
      We present a new multiagent model for the multiperiod portfolio selection problem. Individual agents receive a share of initial wealth, and follow an investment strategy that adjusts their portfolio as they observe movements ...
    • Cooperative Redox Chemistry Utilizing Bioinspired Dipyrrin Pacman Complexes 

      Johnson, Elizabeth J (2021-07-12)
      Polynuclear active sites are a common motif employed by enzymes to facilitate cooperative redox chemistry. For instance, diiron enzymes serve a variety of purposes in nature, including the promotion of C–H functionalization ...
    • Cooperative regulation by G proteins and Na+ of neuronal GIRK2 K+ channels 

      Wang, Weiwei; Touhara, Kouki K; Weir, Keiko; Bean, Bruce P; MacKinnon, Roderick (eLife Sciences Publications, Ltd, 2016)
      G protein gated inward rectifier K+ (GIRK) channels open and thereby silence cellular electrical activity when inhibitory G protein coupled receptors (GPCRs) are stimulated. Here we describe an assay to measure neuronal ...
    • Cooperative Resonances in Light Scattering from Two-Dimensional Atomic Arrays 

      Shahmoon, Ephraim; Wild, Dominik S.; Lukin, Mikhail D.; Yelin, Susanne F. (American Physical Society, 2017)
      We consider light scattering off a two-dimensional (2D) dipolar array and show how it can be tailored by properly choosing the lattice constant of the order of the incident wavelength. In particular, we demonstrate that ...
    • Cooperativity and stability in a Langevin model of proteinlike folding 

      Berriz, Gabriel F.; Gutin, Alexander M.; Shakhnovich, Eugene I. (AIP Publishing, 1997)
      We present two simplified models of protein dynamics based on Langevin's equation of motion in a viscous medium. We explore the effect of the potential energy function's symmetry on the kinetics and thermodynamics of ...
    • Cooperativity, Fluctuations and Inhomogeneities in Soft Matter 

      Paulose, Jayson Joseph (2013-09-30)
      This thesis presents four investigations into mechanical aspects of soft thin structures, focusing on the effects of stochastic and thermal fluctuations and of material inhomogeneities. First, we study the self-organization ...
    • Coordinate control of virulence gene expression in Francisella tularensis 

      Rohlfing, Amy Elizabeth (2015-05-19)
      Francisella tularensis is a Gram-negative, intracellular pathogen and the causative agent of tularemia. Due to its low infectious dose, ability to cause potentially fatal disease, and ability to be easily aerosolized, ...
    • Coordinated Evolution of Influenza A Surface Proteins 

      Neverov, Alexey D.; Kryazhimskiy, Sergey; Plotkin, Joshua B.; Bazykin, Georgii A. (Public Library of Science, 2015)
      The surface proteins hemagglutinin (HA) and neuraminidase (NA) of human influenza A virus evolve under selection pressures to escape adaptive immune responses and antiviral drug treatments. In addition to these external ...
    • Coordinated Resource Management in Networked Embedded Systems 

      Waterman, Jason (2012-11-06)
      This dissertation shows that with simple programming abstractions, network-wide resource coordination is efficient and useful for programming embedded sensor networks. Existing systems have focused primarily on managing ...