Browsing Faculty of Arts and Sciences by Title
Now showing items 3963-3982 of 24540
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Cooling and Collisions of Large Gas Phase Molecules
(Royal Society of Chemistry, 2010)Cold and dense samples of naphthalene \((C_{10}H_8)\) are produced using buffer gas cooling in combination with rapid, high flow molecule injection. The observed naphthalene density is \(n \approx 10^{11} cm_{−3}\) over a ... -
Cooling of US Midwest summer temperature extremes from cropland intensification
(Nature Publishing Group, 2015)High temperature extremes during the growing season can reduce agricultural production. At the same time, agricultural practices can modify temperatures by altering the surface energy budget. Here we identify centennial ... -
Cooling radiation and the Ly alpha luminosity of forming galaxies
(American Astronomical Society, 2001)We examine the cooling radiation from forming galaxies in hydrodynamic simulations of the LCDM model (cold dark matter with a cosmological constant), focusing on the Ly alpha line luminosities of high-redshift systems. ... -
Cooling the heat of temptation: Mental self-control and the automatic evaluation of tempting stimuli
(Wiley-Blackwell, 2010)The present research investigated whether mental self-control strategies can reduce the automatic positivity elicited by tempting stimuli. In two studies employing chocolate as the temptation of interest, we found that ... -
Cooling through Optimal Control of Quantum Evolution
(American Physical Society (APS), 2013)Nonadiabatic unitary evolution with tailored time-dependent Hamiltonians can prepare systems of cold-atomic gases with various desired properties such as low excess energies. For a system of two one-dimensional quasicondensates ... -
Cooling, Collisions and non-Sticking of Polyatomic Molecules in a Cryogenic Buffer Gas Cell
(2014-10-21)We cool and study trans-Stilbene, Nile Red and Benzonitrile in a cryogenic (7K) cell filled with low density helium buffer gas. No molecule-helium cluster formation is observed, indicating limited atom-molecule sticking ... -
Cooper pairing in non-Fermi liquids
(American Physical Society (APS), 2015)States of matter with a sharp Fermi surface but no well-defined Landau quasiparticles arise in a number of physical systems. Examples include (i) quantum critical points associated with the onset of order in metals; (ii) ... -
Cooperate without looking: Why we care what people think and not just what they do
(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
(Elsevier BV, 2019-06) -
Cooperation and control in multiplayer social dilemmas
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ...