46 research outputs found
Neutron Thermal Cross Sections, Westcott Factors, Resonance Integrals, Maxwellian Averaged Cross Sections and Astrophysical Reaction Rates Calculated from Major Evaluated Data Libraries
We present calculations of neutron thermal cross sections, Westcott factors,
resonance integrals, Maxwellian-averaged cross sections and astrophysical
reaction rates for 843 ENDF materials using data from the major evaluated
nuclear libraries and European activation file. Extensive analysis of
newly-evaluated neutron reaction cross sections, neutron covariances, and
improvements in data processing techniques motivated us to calculate nuclear
industry and neutron physics quantities, produce s-process Maxwellian-averaged
cross sections and astrophysical reaction rates, systematically calculate
uncertainties, and provide additional insights on currently available
neutron-induced reaction data. Nuclear reaction calculations are discussed and
new results are presented.Comment: 145 pages, 15 figures, 19 table
Genome-wide mega-analysis identifies 16 loci and highlights diverse biological mechanisms in the common epilepsies
sem informaçãoThe epilepsies affect around 65 million people worldwide and have a substantial missing heritability component. We report a genome-wide mega-analysis involving 15,212 individuals with epilepsy and 29,677 controls, which reveals 16 genome-wide significant91sem informaçãosem informaçãosem informaçã
An Observational Overview of Solar Flares
We present an overview of solar flares and associated phenomena, drawing upon
a wide range of observational data primarily from the RHESSI era. Following an
introductory discussion and overview of the status of observational
capabilities, the article is split into topical sections which deal with
different areas of flare phenomena (footpoints and ribbons, coronal sources,
relationship to coronal mass ejections) and their interconnections. We also
discuss flare soft X-ray spectroscopy and the energetics of the process. The
emphasis is to describe the observations from multiple points of view, while
bearing in mind the models that link them to each other and to theory. The
present theoretical and observational understanding of solar flares is far from
complete, so we conclude with a brief discussion of models, and a list of
missing but important observations.Comment: This is an article for a monograph on the physics of solar flares,
inspired by RHESSI observations. The individual articles are to appear in
Space Science Reviews (2011