Browsing Faculty of Arts and Sciences by Title
Now showing items 7349-7368 of 24506
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Evidence for Early Dispersal of Domestic Sheep Into Central Asia
(Springer Science and Business Media LLC, 2021-04-08)The Early Holocene development and dispersal of agropastoralism transformed the cultural and ecological landscapes of the Old World – but little is known about when or how this process first impacted Central Asia. Here, ... -
Evidence for F-theory
(Elsevier, 1996)We construct compact examples of D-manifolds for type IIB strings. The construction has a natural interpretation in terms of compactification of a 12-dimensional 'F-theory'. We provide evidence for a more natural reformulation ... -
Evidence for gamma-ray jets in the Milky Way
(IOP Publishing, 2012)Although accretion onto supermassive black holes in other galaxies is seen to produce powerful jets in X-ray and radio, no convincing detection has ever been made of a kpc-scale jet in the Milky Way. The recently discovered ... -
Evidence for Grain Growth in Molecular Clouds: A Bayesian Examination of the Extinction Law in Perseus
(Royal Astronomical Society, 2013)We investigate the shape of the extinction law in two \(1^{\circ}\) square fields of the Perseus molecular cloud complex. We combine deep red-optical (r, i and z band) observations obtained using Megacam on the MMT with ... -
Evidence for hypodescent and racial hierarchy in the categorization and perception of biracial individuals.
(American Psychological Association (APA), 2011)Individuals who qualify equally for membership in two racial groups provide a rare window into social categorization and perception. In 5 experiments, we tested the extent to which a rule of hypodescent, whereby biracial ... -
Evidence for intermediate polars as the origin of the Galactic Center hard X-ray emission
(American Astronomical Society, 2016)Recently, unresolved hard (20–40 keV) X-ray emission has been discovered within the central 10 pc of the Galaxy, possibly indicating a large population of intermediate polars (IPs). Chandra and XMM-Newton measurements in ... -
Evidence for Light-by-Light Scattering in Heavy-Ion Collisions With the ATLAS Detector at the LHC
(Springer Science and Business Media LLC, 2017-08-14)Light-by-light scattering (γγ→γγ) is a quantum-mechanical process that is forbidden in the classical theory of electrodynamics. This reaction is accessible at the Large Hadron Collider thanks to the large electromagnetic ... -
Evidence for Low Black Hole Spin and Physically Motivated Accretion Models From Millimeter-vlbi Observations of Sagittarius A*
(American Astronomical Society, 2011)Millimeter very long baseline interferometry (mm-VLBI) provides the novel capacity to probe the emission region of a handful of supermassive black holes on sub-horizon scales. For Sagittarius A* (Sgr A*), the supermassive ... -
Evidence for Low Sulphate and Anoxia in a Mid-Proterozoic Marine Basin
(Nature Publishing Group, 2003)Many independent lines of evidence document a large increase in the Earth's surface oxidation state 2,400 to 2,200 million years ago, and a second biospheric oxygenation 800 to 580 million years ago, just before large ... -
Evidence for merger-driven activity in the clustering of high-redshift quasars
(Oxford University Press, 2009)Recently, a very large clustering length has been measured for quasars at a redshift of z similar to 4. In combination with the observed quasar luminosity function, we assess the implications of this clustering for the ... -
Evidence for Methylotrophic Symbionts in a Hydrothermal Vent Mussel (Bivalvia: Mytilidae) from the Mid-Atlantic Ridge
(American Society for Microbiology, 1992)Symbioses between chemolithoautotrophic bacteria and the major macrofaunal species found at hydrothermal vents have been reported for numerous sites in the Pacific Ocean. We present microscopical and enzymatic evidence ... -
Evidence for Neural Effects of Repetition that Directly Correlate with Behavioral Priming
(Massachusetts Institute of Technology Press, 2004)Stimulus repetition associates with neural activity reductions during tasks that elicit behavioral priming. Here we present direct evidence for a quantitative relation between neural activity reductions and behavioral ... -
Evidence for Patterns of Selective Urban Migration in the Greater Indus Valley (2600-1900 BC): A Lead and Strontium Isotope Mortuary Analysis
(Public Library of Science, 2015)Just as modern nation-states struggle to manage the cultural and economic impacts of migration, ancient civilizations dealt with similar external pressures and set policies to regulate people’s movements. In one of the ... -
Evidence for single top-quark production in the s-channel in proton-proton collisions at s√=8 TeV with the ATLAS detector using the Matrix Element Method
(Elsevier BV, 2016)This Letter presents evidence for single top-quark production in the s-channel using proton-proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. The analysis is ... -
Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector
(American Physical Society (APS), 2018-04-09)A search for the associated production of the Higgs boson with a top quark pair (tt ̄H) is reported. The search is performed in multilepton final states using a dataset corresponding to an integrated luminosity of 36.1 ... -
Evidence for the black hole event horizon
(Oxford University Press, 2003)Astronomers have discovered many candidate black holes in X-ray binaries and in the nuclei of galaxies. The candidate objects are too massive to be neutron stars and for this reason they are considered to be black holes. ... -
Evidence for the H→bb¯ decay with the ATLAS detector
A search for the decay of the Standard Model Higgs boson into a bb¯ pair when produced in association with a W or Z boson is performed with the ATLAS detector. The analysed data, corresponding to an integrated luminosity ... -
Evidence for the Role of Endosymbionts in Regional-Scale Habitat Partitioning by Hydrothermal Vent Symbioses
(Proceedings of the National Academy of Sciences, 2012)Deep-sea hydrothermal vents are populated by dense communities of animals that form symbiotic associations with chemolithoautotrophic bacteria. To date, our understanding of which factors govern the distribution of ... -
Evidence for the Universal Scaling Behaviour of a Freely Relaxing DNA Molecule
(EDP Sciences, 1996)Relaxation measurements on a fluorescently labelled free DNA molecule after stretching by a Poiseuille flow in a capillary vessel reveal universal scaling features: at intermediate times the scaling exponent of the decay ...