Browsing Faculty of Arts and Sciences by Title
Now showing items 852-871 of 24540
-
An upper bound on the total inelastic cross section as a function of the total cross section
(American Physical Society, 2011)Recently, Andre Martin has proved a rigorous upper bound on the inelastic cross section sigma(inel) at high energy, which is one-fourth of the known Froissart-Martin-Lukaszuk upper bound on sigma(tot). Here, we obtain an ... -
An Upper Limit on the Reflected Light from the Planet Orbiting the Star τ Bootis
(American Astronomical Society, 1999)The planet orbiting tau Boo at a separation of 0.046 AU could produce a reflected light flux as bright as 1 x 10(-4) relative to that of the star. A spectrum of the system will contain a reflected light component which ... -
An Upper Limit to the Degree of Evolution between Supermassive Black Holes and Their Host Galaxies
(American Astronomical Society, 2006)We describe a model-independent integral constraint that defines an upper limit to the allowed degree of evolution in the ratio of black hole (BH) mass to host galaxy luminosity or mass, as a function of redshift. Essentially, ... -
An X‐Ray Variable Millisecond Pulsar in the Globular Cluster 47 Tucanae: Closing the Link to Low‐Mass X‐Ray Binaries
(American Astronomical Society, 2005)We report the discovery of peculiar X-ray spectral variability in the binary radio millisecond pulsar PSR J0024 - 7204W in the globular cluster 47 Tuc. The observed emission consists of a dominant nonthermal component, ... -
Anaemia, prenatal iron use, and risk of adverse pregnancy outcomes: systematic review and meta-analysis
(BMJ Publishing Group Ltd., 2013)Objectives: To summarise evidence on the associations of maternal anaemia and prenatal iron use with maternal haematological and adverse pregnancy outcomes; and to evaluate potential exposure-response relations of dose of ... -
Anaerobic Methane Oxidation in Metalliferous Hydrothermal Sediments: Influence on Carbon Flux and Decoupling from Sulfate Reduction
(Wiley-Blackwell, 2012)The anaerobic oxidation of methane (AOM) is a globally significant sink that regulates methane flux from sediments into the oceans and atmosphere. Here we examine mesophilic to thermophilic AOM in hydrothermal sediments ... -
Anaerobic Oxidation of Short-Chain Alkanes in Hydrothermal Sediments: Potential Influences on Sulfur Cycling and Microbial Diversity
(Frontiers Research Foundation, 2013)Short-chain alkanes play a substantial role in carbon and sulfur cycling at hydrocarbon-rich environments globally, yet few studies have examined the metabolism of ethane \((C_2)\), propane \((C_3)\), and butane \((C_4)\) ... -
The anaerobic oxidation of short-chain alkanes in hydrothermal vents
(2014-06-06)Microorganisms are central to the cycling of methane on Earth. The anaerobic oxidation of methane (AOM) is a globally important process in anoxic marine sediments, which is often coupled to the reduction of sulfate by ... -
Analog Modeling of Worm-Like Chain Molecules Using Macroscopic Beads-on-a-String
(Royal Society of Chemistry (RSC), 2012)This paper describes an empirical model of polymer dynamics, based on the agitation of millimeter-sized polymeric beads. Although the interactions between the particles in the macroscopic model, and those between the ... -
Analyses Do Not Support CYP17 Genotype-Estradiol Associations--In Response
(American Association for Cancer Research, 2008)In Response: Vitzthum and Thornburg’s comments seem to reflect a basic misunderstanding of our paper and its results. As noted in the title of the article, we document an association between CYP17 genotypes and salivary ... -
Analysing human neural stem cell ontogeny by consecutive isolation of Notch active neural progenitors
(Nature Pub. Group, 2015)Decoding heterogeneity of pluripotent stem cell (PSC)-derived neural progeny is fundamental for revealing the origin of diverse progenitors, for defining their lineages, and for identifying fate determinants driving ... -
Analysis and interpretation of serial position data
(Informa UK Limited, 2010)The representation of serial position in sequences is an important topic in a variety of cognitive areas including the domains of language, memory, and motor control. In the neuropsychological literature, serial position ... -
Analysis and Synthesis in Olfaction
(American Chemical Society, 2014)Natural environments contain numerous volatile compounds emanating from a large number of sources, and the survival of many animals depends on their ability to segregate odors of interest within complex odorous scenes. In ... -
Analysis of 14 BAC Sequences from the Aedes Aegypti Genome: A Benchmark for Genome Annotation and Assembly
(BioMed Central, 2007)In order to provide a set of manually curated and annotated sequences from the Aedes aegypti genome, mapped BAC clones encompassing 1.57 Mb were sequenced, assembled and manually annotated using computational gene-finding, ... -
Analysis of a Mouse Skin Model of Tuberous Sclerosis Complex
(Public Library of Science, 2016)Tuberous Sclerosis Complex (TSC) is an autosomal dominant tumor suppressor gene syndrome in which patients develop several types of tumors, including facial angiofibroma, subungual fibroma, Shagreen patch, angiomyolipomas, ... -
Analysis of Abrupt Transitions in Ecological Systems
(Ecological Society of America, 2011)The occurrence and causes of abrupt transitions, thresholds, or regime shifts between ecosystem states are of great concern and the likelihood of such transitions is increasing for many ecological systems. General understanding ... -
Analysis of Atmospheric Energy Transport in ERA40 and Implications for Simple Models of the Mean Tropical Circulation
(American Meterological Society, 2008)An analysis of atmospheric energy transport in 22 years (1980-2001) of the 40-yr ECMWF Re-Analysis (ERA-40) is presented. In the analyzed budgets, there is a large cancellation between divergences of dry static and latent ... -
Analysis of Bidding Networks in eBay: Aggregate Preference Identification through Community Detection
(American Association for Artificial Intelligence, 2007)Statistical analysis of networks plays a critical role in the context of economics and the social sciences. Here we construct a bidding network to represent the behavior of users of the eBay marketplace. We study the eBay ... -
An Analysis of Costs and Health Co-Benefits for a U.S. Power Plant Carbon Standard
(Public Library of Science, 2016)Reducing carbon dioxide (CO2) emissions from power plants can have important “co-benefits” for public health by reducing emissions of air pollutants. Here, we examine the costs and health co-benefits, in monetary terms, ... -
Analysis of events with b-jets and a pair of leptons of the same charge in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector
(Springer Science and Business Media LLC, 2015-10)