Browsing Faculty of Arts and Sciences by Title
Now showing items 9258-9277 of 24540
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Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation
(Wiley-Blackwell, 2001)We present a first description and evaluation of GEOS-CHEM, a global threedimensional (3-D) model of tropospheric chemistry driven by assimilated meteorological observations from the Goddard Earth Observing System (GEOS) ... -
Global modelling of the early martian climate under a denser \(CO_2\) atmosphere: Water cycle and ice evolution
(Elsevier BV, 2013)We discuss 3D global simulations of the early martian climate that we have performed assuming a faint young Sun and denser CO2 atmosphere. We include a self-consistent representation of the water cycle, with atmosphere–surface ... -
Global Nucleosome Occupancy in Yeast
(BioMed Central, 2004)A genome-wide study of nucleosome occupancy at yeast promoters shows that promoters that regulate active genes, contain multiple conserved motifs, or contain Rap1 binding sites tend to be depleted of nucleosomes. -
Global Operations For Protected Quantum Memories In Atomic Spin Lattices
(2009)Quantum information processed in strongly correlated states of matter can provide built in hardware protection against errors. We may encode information in highly non local degrees of freedom, such as using three dimensional ... -
Global Ozone–CO Correlations from OMI and AIRS: Constraints on Tropospheric Ozone Sources
(European Geosciences Union, 2013)We present a global data set of free tropospheric ozone–CO correlations with 2° × 2.5° spatial resolution from the Ozone Monitoring Instrument (OMI) and Atmospheric Infrared Sounder (AIRS) satellite instruments for each ... -
Global patterns of water storage in the rooting zones of vegetation
(Springer Science and Business Media LLC, 2023-02-09)<jats:title>Abstract</jats:title><jats:p>The rooting-zone water-storage capacity—the amount of water accessible to plants—controls the sensitivity of land–atmosphere exchange of water and carbon during dry periods. How the ... -
Global Phase Diagrams of Frustrated Quantum Antiferromagnets in Two Dimensions: Doubled Chern-Simons Theory
(The American Physical Society, 2009)We present a general approach to understanding the quantum phases and phase transitions of quantum antiferromagnets in two spatial dimensions. We begin with the simplest spin liquid state, the \(Z_2\) spin liquid, whose ... -
Global Positioning: Houqua and His China Trade Partners in the Nineteenth Century
(2012-07-23)This study unearths the lost world of early-nineteenth-century Canton. Known today as Guangzhou, this Chinese city witnessed the economic dynamism of global commerce until the demise of the Canton System in 1842. Records ... -
Global post-transcriptional regulators in Pseudomonas aeruginosa
(2018-08-17)Pseudomonas aeruginosa is a Gram-negative opportunistic human pathogen found ubiquitously in both natural and manmade environments. Central to its ability to grow in different environments is the organism’s coordinated ... -
Global Potential for Wind-Generated Electricity
(National Academy of Sciences, 2009)The potential of wind power as a global source of electricity is assessed by using winds derived through assimilation of data from a variety of meteorological sources. The analysis indicates that a network of land-based ... -
A global reference for human genetic variation
(Springer Nature, 2015)The 1000 Genomes Project set out to provide a comprehensive description of common human genetic variation by applying whole-genome sequencing to a diverse set of individuals from multiple populations. Here we report ... -
Global Relationships between Cropland Intensification and Summer Temperature Extremes over the Last 50 Years
(American Meteorological Society, 2017-09)Conversion of native ecosystems to cropland and the use of irrigation are considered dominant pathways through which agricultural land-use change alters regional climate. Recent research proposes that increases in cropland ... -
Global repression and variable compensation following SWI/SNF inhibition
(2022-11-23)SWI/SNF chromatin remodelers are multi-subunit complexes that use energy from ATP to evict or reposition nucleosomes, modulating chromatin accessibility. While both activating and repressive roles have been described for ... -
Global Signatures of Selection in Humans
(2018-05-13)This thesis studies the properties and prevalence of natural selection operating on our species on a global or genome-wide scale. It is still not known how negative selection against deleterious mutations operates genome-wide, ... -
Global simulation of tropospheric O 3 -NO x -hydrocarbon chemistry: 3. Origin of tropospheric ozone and effects of nonmethane hydrocarbons
(Wiley-Blackwell, 1998)A global three-dimensional model of tropospheric O3-NOx-hydrocarbon chemistry is used to investigate the factors controlling ozone concentrations in the troposphere. Model results indicate a close balance between chemical ... -
Global simulation of tropospheric O3-NOx-hydrocarbon chemistry: 1. Model formulation
(Wiley-Blackwell, 1998)We describe a global three-dimensional model for tropospheric O3-NOx-hydrocarbon chemistry with synoptic-scale resolution. A suite of 15 chemical tracers, including O3, NOx, PAN, HNO3, CO, H2O2, and various hydrocarbons, ... -
Global simulation of tropospheric O3-NOx-hydrocarbon chemistry: 2. Model evaluation and global ozone budget
(Wiley-Blackwell, 1998)Results from a global three-dimensional model for tropospheric O3-NOx-hydrocarbon chemistry are presented and evaluated with surface, ozonesonde, and aircraft measurements. Seasonal variations and regional distributions ... -
Global simulations of axisymmetric radiative black hole accretion discs in general relativity with a mean-field magnetic dynamo
(Oxford University Press (OUP), 2014)We present a sub-grid model that emulates the magnetic dynamo operating in magnetized accretion disks. We have implemented this model in the general relativisic radiation magnetohydrodynamic (GRRMHD) code KORAL, using ... -
Global Source–Receptor Relationships for Mercury Deposition Under Present-Day and 2050 Emissions Scenarios
(American Chemical Society (ACS), 2011)Global policies regulating anthropogenic mercury require an understanding of the relationship between emitted and deposited mercury on intercontinental scales. Here, we examine source–receptor relationships for present-day ...