Browsing FAS Scholarly Articles by Title
Now showing items 2245-2264 of 18256
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CMB and 21-cm signals for dark matter with a long-lived excited state
(American Physical Society (APS), 2008)Motivated by the eXciting Dark Matter (XDM) model of Finkbeiner & Weiner, hypothesized to explain the 511 keV signal in the center of the Milky Way, we consider the CMB and 21-cm signatures of models of dark matter with ... -
CMB B -mode polarization from Thomson scattering in the local universe
(American Physical Society, 2005)The polarization of the cosmic microwave background (CMB) is widely recognized as a potential source of information about primordial gravitational waves. The gravitational wave contribution can be separated from the dominant ... -
CMB constraints on WIMP annihilation: Energy absorption during the recombination epoch
(American Physical Society (APS), 2009)We compute in detail the rate at which energy injected by dark matter annihilation heats and ionizes the photon-baryon plasma at z ~ 1000, and provide accurate fitting functions over the relevant redshift range for a broad ... -
CMB polarimetry with BICEP: instrument characterization, calibration, and performance
(2016-04-12)Bicep is a ground-based millimeter-wave bolometric array designed to target the primordial gravity wave signature on the B-mode polarization of the cosmic microwave background (CMB) at degree angular scales. Currently in ... -
CMBPol Mission Concept Study: Probing Inflation with CMB Polarization
(2009)We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measurements to differentiate various inflationary ... -
CNTRICS Final Task Selection: Long-term Memory
(Oxford University Press, 2009)Long-term memory (LTM) is a multifactorial construct, composed of different stages of information processing and different cognitive operations that are mediated by distinct neural systems, some of which may be more ... -
CO diffusion into amorphous H2O ices
(IOP Publishing, 2015)The mobility of atoms, molecules, and radicals in icy grain mantles regulates ice restructuring, desorption, and chemistry in astrophysical environments. Interstellar ices are dominated by H2O, and diffusion on external ... -
CO Isotopologues in the Perseus Molecular Cloud Complex: theX‐factor and Regional Variations
(American Astronomical Society, 2008-05-20) -
Co-evolution of strategy and structure in complex networks with dynamical linking
(American Physical Society, 2006) -
Co-evolution-based prediction of metal-binding sites in proteomes by machine learning
(Springer Science and Business Media LLC, 2023-01-02)Metal ions play various important biological role in proteins including structural maintenance, molecular recognition and catalysis. Previous methods of predicting metal-binding sites in proteomes were based on either ... -
Co-Inflow: Coarse-grained Information Flow Control for Java-like Languages
(IEEE, 2021-05)Coarse-grained dynamic information-flow control (IFC) is a good match for imperative object-oriented programming languages such as Java. Java language abstractions align well with coarse-grained IFC concepts, and so Java ... -
Co-optimization of SnS absorber and Zn(O,S) buffer materials for improved solar cells
(Wiley-Blackwell, 2014)Thin-film solar cells consisting of earth-abundant and non-toxic materials were made from pulsed chemical vapor deposition (pulsed-CVD) of SnS as the p-type absorber layer and atomic layer deposition (ALD) of Zn(O,S) as ... -
Co-registered Geochemistry and Metatranscriptomics Reveal Unexpected Distributions of Microbial Activity within a Hydrothermal Vent Field
(Frontiers Media SA, 2017)Despite years of research into microbial activity at diffuse flow hydrothermal vents, the extent of microbial niche diversity in these settings is not known. To better understand the relationship between microbial activity ... -
CO2 Uptake and Fixation by Endosymbiotic Chemoautotrophs from the Bivalve Solemya velum
(American Society for Microbiology, 2006)Chemoautotrophic symbioses, in which endosymbiotic bacteria are the major source of organic carbon for the host, are found in marine habitats where sulfide and oxygen coexist. The purpose of this study was to determine the ... -
Coadaptation and conflict, misconception and muddle, in the evolution of genomic imprinting
(Nature Publishing Group, 2013)Common misconceptions of the ‘parental conflict’ theory of genomic imprinting are addressed. Contrary to widespread belief, the theory defines conditions for cooperation as well as conflict in mother–offspring relations. ... -
Coalitional Rationalizability
(MIT Press, 2006)This paper investigates how groups or coalitions of players can act in their collective interest in noncooperative normal form games even if equilibrium play is not assumed. The main idea is that each member of a coalition ... -
Coarse Graining Atomistic Simulations of Plastically Deforming Amorphous Solids
(American Physical Society (APS), 2017-05-05)The primary mode of failure in disordered solids results from the formation and persistence of highly localized regions of large plastic strains known as shear bands. Continuum-level field theories capable of predicting ... -
Coarse Thinking and Persuasion
(MIT Press, 2008)We present a model of uninformative persuasion in which individuals “think coarsely”: they group situations into categories and apply the same model of inference to all situations within a category. Coarse thinking exhibits ... -
Coase versus the Coasians
(Oxford University Press (OUP), 2001-08-01)Who should enforce laws or contracts: judges or regulators? Many Coasians, though not Coase himself, advocate judicial enforcement. We show that the incentives facing judges and regulators crucially shape this choice. We ... -
Coastal Lithofacies and Biofacies Associated with Syndepositional Dolomitization and Silicification (Draken Formation, Upper Riphean, Svalbard)
(Elsevier, 1991)The Draken Formation (120-250 m) of northeast Spitsbergen (Svalbard) forms part of a thick Upper Proterozoic carbonate platform succession. It consists predominantly of intraformational dolomitic conglomerates, with excellent ...