Some remarks on weighted logarithmic Sobolev inequality

We give here a simple proof of weighted logarithmic Sobolev inequality, for example for Cauchy type measures, with optimal weight, sharpening results of Bobkov-Ledoux. Some consequences are also discussed

Simple but Stronger UO, Double but Weaker UNMe Bonds: The Tale Told by Cp2UO and Cp2UNR

The free energies of reaction and the activation energies are calculated, with DFT (B3PW91) and small RECP (relativistic core potential) for uranium, for the reaction of Cp2UNMe and Cp2UO with MeCCMe and H3Si-Cl that yields the corresponding addition products. CAS(2,7) and DFT calculations on Cp2UO and Cp2UNMe give similar results, which validates the use of DFT calculations in these cases. The calculated results mirror the experimental reaction of [1,2,4-(CMe3)3C5H2]2UNMe with dimethylacetylene and [1,2,4-(CMe3)3C5H2]2UO with Me3SiCl. The net reactions are controlled by the change in free energy between the products and reactants, not by the activation energies, and therefore by the nature of the UO and UNMe bonds in the initial and final states. A NBO analysis indicates that the U-O interaction in Cp2UO is composed of a single U-O bond with three lone pairs of electrons localized on oxygen, leading to a polarized U-O fragment. In contrast, the U-NMe interaction in Cp2UNMe is composed of a and component and a lone pairof electrons localized on the nitrogen, resulting in a less polarized UNMe fragment, in accord with the lower electronegativity of NMe relative to O. The strongly polarized U(+)-O(-) bond is calculated to be about 70 kcal mol-1 stronger than the less polarized U=NMe bond

NuSTAR discovery of a cyclotron line in KS 1947+300

We present a spectral analysis of three simultaneous Nuclear Spectroscopy Telescope Array and Swift/XRT observations of the transient Be-neutron star binary KS 1947+300 taken during its outburst in 2013/2014. These broadband observations were supported by Swift/XRT monitoring snapshots every three days, which we use to study the evolution of the spectrum over the outburst. We find strong changes of the power-law photon index, which shows a weak trend of softening with increasing X-ray flux. The neutron star shows very strong pulsations with a period of P ≈ 18.8 s. The 0.8–79 keV broadband spectrum can be described by a power law with an exponential cutoff and a blackbody component at low energies. During the second observation we detect a cyclotron resonant scattering feature at 12.5 keV, which is absent in the phase-averaged spectra of observations 1 and 3. Pulse phase-resolved spectroscopy reveals that the strength of the feature changes strongly with pulse phase and is most prominent during the broad minimum of the pulse profile. At the same phases the line also becomes visible in the first and third observation at the same energy. This discovery implies that KS 1947+300 has a magnetic field strength of B ≈ 1.1 × 10^(12) (1 + z) G, which is at the lower end of known cyclotron line sources

Mise au point de 2 appareils d'utilisation quotidienne: l'un pour l'exploration oeso-gastro-duodenale, l'autre pour l'exploration basse du recto-sigmoide

SIGLECNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

What's Fair for Whom at Work? Studying the Choice of Justice Norms in Different Work Relationships, 2008-2010

Abstract copyright UK Data Service and data collection copyright owner.Fairness perceptions are an important driver of employees’ attitudes and behaviours in organisations. Therefore, it is crucial for managers to understand how fairness perceptions are formed. Research has not addressed whether people choose different normative standards when making judgments of distributive, procedural, interpersonal, and informational justice in different types of work relationships. The objectives of this study were:to identify the norms that people typically choose to judge the justice of outcomes (distributive justice), procedures (procedural justice), treatment (interpersonal justice) and information provision (informational justice) at workto develop an instrument to measure individual tendencies to choose particular types of justice norms, as an individual difference. This will allow the researchers and other researchers to determine in how far variance in justice judgments is due to general individual preferences for particular norms, independent of the situationto explore and then test how the choice of fairness norms differs between different types of work relationships (in particular, between peer versus hierarchical relationships, and close and distant relationships) The central research question of this study was: which norms do people choose to judge the different aspects of fairness at work, and how is this influenced by the different types of work relationships people find themselves in? The results will be of interest to academics who are interested in the process of making justice judgments, and to organisational practitioners who need to understand how fairness judgments are made in order to be able to create fairness perceptions among their employees. Further information is available from the What's Fair for Whom at Work? Studying the Choice of Fairness Norms in Different Work Relationships ESRC End of Award web page.Main Topics:Study One is an exploratory recall study in which 62 working people were asked to think about critical fairness-related incidents from their own experience in the workplace, and then to fill in a questionnaire regarding this incident. The incidents concerned experiences of unfairness at work from distant or close managers or peers. Study Two is a questionnaire study that aimed to develop a measure of individual differences in preferences for fairness norms. A larger set of items developed by a group of experts was administered to 338 working people. The purpose of Study Three was to extend and generalise the findings from studies one and two. The researchers administered a questionnaire about fairness experiences with managers and peers to the alumni of a UK university (n=458). This study included several fairness norms, as well as measures of friendship and trust, and the individual difference measure that we developed about fairness preferences in Study Two

Effets physio-pathologiques de l'etain contenu dans les aliments

CNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc

context under imperfect requirements

Author manuscript, published in "&quot

Influence des facteurs anxiogenes sur la charge de travail des infirmieres

SIGLECNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc