When conducting research on burnout, it may be difficult to decide whether one should report results separately for each burnout dimension or whether one should combine the dimensions. La détection de cette importante émission galactique semble donc être à la portée des télescopes gamma de la prochaine génération. The data shown in this figure are from Asplund et al. We show in the present work that the 6. We assumed the following impulsive-flare composition for the accelerated ions: This article deals with the question of whether and when it may be appropriate to treat burnout as a unidimensional variable, and presents a decision rule to distinguish between people high and low in burnout. Mais la méconnaissance des propriétés des ions accélérés dans ces évènements, en particulier de leur distribution angulaire, rend les résultats obtenus très incertains voir ci-dessous.
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This paper presents an original microcap structure that enables the use of IR window materials as sealing layers to maintain the expected vacuum level. The key comparison reference value KCRV has been recalculated to include this new value and the degrees of equivalence between each equivalent activity for the three participants measured in the SIR and the KCRV are presented in a table and graphically. Although the multidimensionality of the burnout concept is widely acknowledged, for research purposes it is sometimes convenient to regard burnout as a unidimensional construct. Coming to grips with challenging behaviour: Cette dernière grandeur est mesurée par le taux de radiation R6. It caused more than 15, casualties, swept away the low-land quarters of several villages and moreover was the primary cause of the severe nuclear accident in the Fukushima Nuclear Power Plant.
UBO Detector – A cluster-based, fully automated pipeline for extracting white matter hyperintensities. We present ‘ UBO Detector’, a cluster-based, fully automated pipeline for extracting and calculating windss for regions of white matter hyperintensities WMH available for download at https: With parallel computing enabled in UBO Detector, the processing can take advantage of multi-core CPU’s that are commonly available on workstations. Nowadays numerical models are a powerful tool in tsunami research since they can be used i to reconstruct modern and historical events, ii to cast new light on tsunami sources by inverting tsunami data and observations, iii wijds build scenarios in the frame of tsunami mitigation plans, and iv to produce forecasts of tsunami impact and inundation in systems of early warning.
In parallel with the general recognition of the importance of numerical tsunami simulations, the demand has grown for reliable tsunami codes, validated through tests agreed upon by the tsunami community. This paper presents the tsunami code UBO -TSUFD that has been developed at the University of Proo, Italy, and that solves the non-linear shallow water NSW equations in a Cartesian frame, with inclusion 0213.6 bottom friction and exclusion of the Coriolis force, by means of a leapfrog LF finite-difference scheme on a staggered grid and that accounts for moving boundaries to compute sea inundation and withdrawal at the coast.
The code is proven to perform very satisfactorily since it reproduces quite well the benchmark theoretical and experimental data. Further, the code is applied to a realistic tsunami case: Au total vingt et une grille sont analysées.
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Résultats Enles résultats ont montré clairement une insuffisance des performances des laboratoires: Enle LNRL a enregistré une nette amélioration des performances des laboratoires.
Conclusion Ceci montre l’efficacité de la grille comme outil de supervision winsd grande qualité, et comme pierre angulaire de tout progrès qui doit être obtenu dans les programmes de lutte contre les leishmanioses.
Air radioactivity levels following the Fukushima reactor accident measured at the Laboratoire Souterrain de Modane, France. The radioactivity levels in the air of the radionuclides released by the Fukushima accident were measured at the Laboratoire Souterrain de Modane, in the South-East of France, during the period 25 March April Air-filters from the ventilation system exposed for one or two days were measured using low-background gamma-ray spectrometry.
The highest activities of I were measured as a first peak on 30 March and a second peak on April. The highest activity concentration recorded for Cs corresponded to the same 0213.6 as for I, with a peak on April.
The results of the radioactivity concentration levels wnds grass and mushrooms exposed to the wijds in the Modane region were also measured. L’équipe de recherche était alors constituée de 2 enseignants-chercheurs Raymond Chaléat et Gérard Lallement et d’un technicien Bernard Prêtre.
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Les travaux de recherche se situaient naturellement dans le domaine de la chronométrie et en particulier dans la mécanique non linéaire analytique inhérente à la montre en fonctionnement. Pr effet, Raymond Chaléat fut l’élève, puis le collaborateur du Professeur Jules Haag, mathématicien et mécanicien, rpo élève de Poincarré. Lallement a créé une équipe Vibrations devenue à ce jour Dynamique des Structures.
À ce jour, le Laboratoire compte plus de personnes dont 40 doctorants. Il a depuis diversifié ses activités avec 3 nouvelles équipes tournées vers la Modélisation et la Mise en Forme des Matériaux, les Micromachines et la Biomécanique et les Mécanismes.
Il a su également prendre toute sa place au sein de l’Institut des Microtechniques de Franche-Comté en contribuant à plusieurs thèmes. Visible and near-infrared reflectance spectroscopy of planetary analog materials. Experimental facility at Laboratoire de Planetologie de Grenoble. We have developed an original experimental facility designed to measure the bidirectional reflectance spectra of planetary analog materials.
These measurements are helpful to interpret the observations of the spectrometers on board space probes in orbit around various Solar System bodies. The central part of the facility is the LPG spectrogonio- radiometer Brissaud et al.
This instrument provides measurements of samples BRDF Bidirectional Reflectance Distribution Function with high photometric and spectrometric accuracy in the spectral range of visible and near-infrared 0. This makes possible the measurements on different kinds of water ice samples slab ice, frost, snow Experimental results will mainly apply to Martian water cycle and hydrated mineralogy.
This simulation chamber also provides an efficient way to obtain bidirectional reflectance spectra of dry materials removal of adsorbed water with implications for planetary bodies without atmospheric or surface water Titan, asteroids The reflectance spectroscopy facility is part of a large panel of instruments and techniques available at Laboratoire de Planetologie de Grenoble that provide complementary measurements on the same samples: Introduction L’objectif de cette étude était d’évaluer la prévalence des dyslipidémies chez les patients reçus au laboratoire de Biochimie de l’Hôpital Aristide Le Dantec pour le dosage d’un paramètre lipidique au cours de l’année Méthodes Il s’agit d’une étude rétrospective portant sur patients âgés de 10 à 94 ans reçus au laboratoire de Biochimie du CHU Le Dantec de janvier à décembre Etaient inclus dans l’étude, tous les patients ayant au moins un paramètre du bilan lipidique dont les résultats étaient enregistrés dans le registre du laboratoire.
Le cholestérol total, le cholestérol HDL, le cholestérol LDL ainsi que les triglycérides ont été dosés grâce à des méthodes enzymatiques sur un automate de Biochimie de type Cobas Integra Roche Diagnostics. Les prévalences de l’hypercholestérolémie, l’hypoHDLémie, l’hyperLDLémie, l’hypertriglycéridémie et l’hyperlipidémie mixte étaient respectivement: Enfin les dyslipidémies étaient fortement corrélées à l’HTA et l’obésité.
Conclusion La forte prévalence des dyslipidémies retrouvée dans notre étude démontre l’intérêt d’étudier la prévalence des facteurs de risque cardio-vasculaires en particulier les dyslipidémies dans la population sénégalaise.
Utilisation des fibres optiques dans un interférométre stellalre: This paper, « Utilisation des fibres optiques dans un interférométre stellalre: Microscopie par rayons X dans la fenêtre de l’eau: La biologie étudie des structures ou des phénomènes sub-cellulaires. Pour cela la microscopie est la technique d’observation privilégiée.
La résolution spatiale de la microscopie optique s’avère bien souvent insuffisante pour de telles observations. Les techniques plus résolvantes, comme la microscopie électronique par transmission sont souvent destructrices et d’une complexité peu adaptée aux besoins des biologistes.
La microscopie par rayons X dans la fenêtre de l’eau permet l’imagerie rapide de cellules dans leur milieu naturel, nécessite peu de préparation et offre des résolutions de quelques dizaines de nanomètres. De plus, il existe un bon contraste naturel entre les structures carbonées protéines, lipides et l’eau. Actuellement cette technique est limitée aux centres de rayonnement synchrotron, ce qui impose une planification et des déplacements incompatibles avec les besoins de la biologie.
Un tel microscope fonctionnant avec uns source de laboratoire serait d’une grande utilité. Ce document présente un état de l’art de la microscopie par rayons X dans la fenêtre de l’eau. Un cahier des charges détaillé pour un appareil de laboratoire ayant les performances optiques requises par les biologistes est présenté et confronté aux microscopes X de laboratoire déjà existants.
Des solutions concernant la source et les optiques sont également discutées. Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https: Multi-Agent Simulations of Earth’s Dynamics: Towards a Virtual Laboratory for Plate Tectonics.
In this approach, ridges, subduction zones, continents and convective cells are agents, whose behavior is controlled by analytical and phenomenological laws.
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These agents are autonomous entities which collect information from their environment and interact with each other. The dynamics of the system is mainly based on a force balance on each plate, that accounts for slab pull, ridge push, bending dissipation and viscous convective drag. Insulating continents are accounted for. Tectonic processes such as trench migration, plate suturing or continental breakup are controlled by explicit parameterizations.
A heat balance is used to compute Earth’s thermal evolution as a function of seafloor age distribution. We thereby obtain an evolutive system where the geometry and the number of tectonic plates are not imposed but emerge naturally from its dynamical history. Our approach has a very low computational cost and allows us to study the effect of a wide range of input parameters windx the long-term thermal evolution of the Earth.
MACMA can thus be seen as a ‘plate 2103.6 virtual laboratory’. We can test not only the effect of input parameters, such as mantle initial temperature and viscosity, initial plate tectonics configuration, number and geometry of continents etc. These rules can be changed at any time, and MACMA is an evolutive tool that can easily integrate new behavioral laws.
Even poorly understood processes, that cannot be accounted for with differential equations, can be studied with this virtual laboratory. Brain unidentified bright objects » UBO » in systemic lupus erythematosus: In all patients conventional brain magnetic resonance imaging cMRI and transesophageal echocardiography were performed. Patients were stratified in two groups, with and without WMHLs, and compared. Overall MES were detected in 12 patients These findings should be taken into account and suggest caution in the interpretation of cMRI pictures along with a careful evaluation of MES in patients with cMRI abnormalities that should be included in the workup of SLE patients.
Modelisation et simulation de pyrolyse de pneus usages dans des reacteurs de laboratoire et industriel. The present thesis covers an applied study on tire pyrolysis. The main objective is to develop tools to allow predicting the production and the quality of oil from tire pyrolysis.
The first research objective consisted in modelling the kinetics of tires pyrolysis in a reactor, namely an industrial rotary drum operating in batch mode. A literature review performed later demonstrated that almost all kinetics models developed to represent tire pyrolysis could not represent the actual industrial process with enough accuracy.
Among the families of kinetics models for pyrolysis, three have been identified: It was observed that these models show limitations. In the models with one single global reaction and with multiple parallels reactions, the production of each individual pyrolytic product cannot be predicted, but only for combined volatiles. Morevoer, the mass term in the kinetics refers to the final char weight Winfinity that varies with pyrolysis conditions, which winxs less robust models.
Also, despite the fact that models with multiple parallels and series reactions can predict the rate of production for each pyrolysis product, the selectivities are determined for operating temperatures instead of real mass temperatures, giving models for which parameters tuning is not adequate when used at the winvs scale.
A new kinetics model has been developed, allowing predicting the rate of production of por gas, oil, and char from tire pyrolysis. The windd of this model is the consideration of intrinsic selectivities for each product as a function of temperature. This hypothesis has been assumed valid considering that in the industrial pyrolysis process, pyrolysis kinetics is limiting. The developed model considers individual kinetics for each of the three pyrolytic products proportional to the global decomposition kinetics of pyrolysables.
The simulation with data obtained in industrial operation showed the robustness of the model to predict with accuracy in transient regime, tires pyrolysis, with prro help of model parameters obtained at laboratory scale, namely in regards of the trigger of production, the residence time of tires dynamic production and the amount of oil produced cumulative yield.
It is a novel way to model pyrolysis that could be extrapolated to new waste materials. The second objective of this doctoral research was to determine the evolution of specific tires specific heat during pyrolysis and the enthalpy of pyrolysis.
The origin of this objective comes from a primary contradiction. With few exceptions, it is acknowledged einds organic materials pyrolysis is globally an endothermic phenomenon. At the opposite, all experiments iwnds with laboratory apparatuses such as DSC Differential Scanning Calorimetry showed exothermic peaks during dynamic experiments constant heating rate.
It has been confirmed by results obtained at the industrial scale, where no sign of exothermicity has been observed.