On the Influence of the Data Sampling Interval on Computer-Derived K-Indices

The K index was devised by Bartels et al. (1939) to provide an objective monitoring of irregular geomagnetic activity. The K index was then routinely used to monitor the magnetic activity at permanent magnetic observatories as well as at temporary stations. The increasing number of digital and sometimes unmanned observatories and the creation of INTERMAGNET put the question of computer production of K at the centre of the debate. Four algorithms were selected during the Vienna meeting (1991) and endorsed by IAGA for the computer production of K indices. We used one of them (FMI algorithm) to investigate the impact of the geomagnetic data sampling interval on computer produced K values through the comparison of the computer derived K values for the period 2009, January 1st to 2010, May 31st at the Port-aux-Francais magnetic observatory using magnetic data series with different sampling rates (the smaller: 1 second; the larger: 1 minute). The impact is investigated on both 3-hour range values and K indices data series, as a function of the activity level for low and moderate geomagnetic activity

A low diffusive Lagrange-remap scheme for the simulation of violent air-water free-surface flows

36p. Submitted to Journal of Computational Physics.In 2002, Després and Lagoutiére proposed a low-diffusive advection scheme for pure transport equation problems, which is particularly accurate for step-shaped solutions, and thus suited for interface tracking procedure by a color function. This has been extended by Kokh and Lagoutiére in the context of compressible multifluid flows using a five-equation model. In this paper, we explore a simplified variant approach for gas-liquid three-equation models. The numerical scheme has two ingredients: a robust remapped Lagrange solver for the solution of the volume-averaged equations, and a low diffusive compressive scheme for the advection of the gas mass fraction. Numerical experiments show the performance of the computational approach on various flow reference problems: dam break, sloshing of a tank filled with water, water-water impact and finally a case of Rayleigh-Taylor instability. One of the advantage of the present interface capturing solver is its natural implementation on parallel processors or computers. In particular, we are confident on its implementation on Graphics Processing Units (GPU) with high speedups

When Hypereosinophilia Leads to Stroke

AFIP1L1-PDGFRA fusion can only be confirmed through molecular and cytogenetic investigations causing a delay in the diagnosis. However, patients with this mutation need urgent treatment because they present hypereosinophilia which may be associated with short-term tissue damage. Thromboembolism is a known cause of death in hypereosinophilic syndrome. A case of Loeffler endocarditis due to FIP1L1-PDGFRA-associated chronic eosinophilic leukemia presenting hemiparesis with fever, which also mislead the initial diagnosis, is reported

Sûretés et droits européens

Le résumé en français n'a pas été communiqué par l'auteur.Le résumé en anglais n'a pas été communiqué par l'auteur

Sûretés et droits européens

Le résumé en français n'a pas été communiqué par l'auteur.Le résumé en anglais n'a pas été communiqué par l'auteur

An Eulerian finite volume solver for multi-material fluid flows with cylindrical symmetry.

International audienceIn this paper, we adapt a pre-existing 2D cartesian cell centered finite volume solver to treat the compressible 3D Euler equations with cylindrical symmetry. We then extend it to multi-material flows. Assuming cylindrical symmetry with respect to the z axis (i.e. all the functions do not depend explicitly on the angular variable $\theta$), we obtain a set of five conservation laws with source terms that can be decoupled in two systems solved on a 2D orthogonal mesh in which a cell as a torus geometry. A specific upwinding treatment of the source term is required and implemented for the stationary case. Test cases will be presented for vanishing and non-vanishing azimuthal velocity $u_{\theta}$

Description de l intérêt du bloc ilio-fascial dans l analgésie multimodale des fractures isolées du fémur en médecine de montagne (étude rétrospective observationnelle à partir d un questionnaire de patients pris en charge par une équipe de médecins correspondants du SAMU de Haute-Savoie)

Introduction: La fracture isolée du fémur est un traumatisme douloureux et fréquent sur les pistes de ski. L'utilisation du bloc ilio fascial (BIF), en co-analgésie aux drogues intra veineuses est recommandée. Peu d études existent sur la réalisation du BIF par des médecins non anesthésistes et aucune sur la réalisation du BIF en milieu difficile. Méthodes: Une étude de cohorte rétrospective monocentrique a été réalisée sur les saisons hivernales 2010-2012. 82 fractures du fémur survenues dans 30 stations de Haute-Savoie ont été recensées. La prise en charge pré-hospitalière de ces fractures est réalisée par des médecins non anesthésistes-réanimateurs et fait l objet d un protocole avec utilisation de morphine, kétamine et BIF. Des questionnaires ont été envoyés aux patients afin d évaluer la douleur à chaque étape. Résultats: 36 patients ont été inclus. L âge moyen est de 36.1 ans. 72% ont bénéficié d un BIF. Chez ces derniers, 27% avait une douleur intense (EN>= 7) lors de la mobilisation et 24% lors du déshabillage. Chez les patients n ayant pas bénéficié de BIF, 60% avait une douleur intense lors de la mobilisation et 40% au moment du déshabillage. L EN moyenne des patients ayant bénéficié d un BIF était de 4.4 lors de la mobilisation, 3 lors du transport et 4.4 lors du déshabillage. Pour les patients n ayant pas bénéficié de BIF, 6.5 lors de la mobilisation, 4 lors du transport et 6.9 lors du déshabillage. Conclusion: L analgésie semble supérieure chez les patients ayant bénéficié d un BIF conformément aux données de la littérature. L'analyse de cette pratique est en faveur de la promotion du BIF. Il est nécessaire de prolonger cette analyse par une étude prospective.Introduction: Isolated femur fracture is a painful injury frequently occurring on ski slopes. Administering fascia iliaca compartment block (FICB), combined with a co-analgesic with intravenous drugs is recommended. Few studies exist on FICB procedures performed by non-anesthesist specialists and none have been conducted on the procedure when performed in a hostile environment. Methods: A single-center retrospective cohort study was performed throughout the 2010-2012 winter seasons. We identified that 82 isolated femur fractures had occurred in 30 ski resorts located in the Haute-Savoie region in France. In most cases pre-hospital sedation was performed by non-anesthesits doctors following a protocol combines intravenous administration of morphin/ketamin and a FICB. Subsequently, patients were sent questionnaires to rate the level of pain at each step of the protocol. Results: 36 patients were included. The average age was 36.1 years. 72% had a FICB. Among patients who had FICB, 27% had severe pain (NS >= 7) at mobilization and 24% while undressing. Among patients who did not have FICB, 60% had severe pain at mobilization and 40% at undressing. The average NS of patient who had FICB was 4.4 during mobilization, 3 during transport and 4.4 during undressing. For patients without FICB, had a pain score of 6.5 during mobilization, 4 when transported and 6.9 during undressing. Conclusion: Sedation seems to be superior when combined with FICB. These results are in accordance with previously published studies. This real life study supports the promotion of FICB. A prospective cohort study could be necessary to validate this sedation protocol.GRENOBLE1-BU Médecine pharm. (385162101) / SudocSudocFranceF

Distinguishing tempo and ageing effects in migration

Background: Despite emerging evidence of a delay of migration to older ages, few studies have considered its impact on overall migration levels. Objective: This paper argues that there are two possible implications of delayed migration on overall migration levels: (1) a tempo effect leading to a temporary underestimation of the level of migration in the observed period data and (2) a migration ageing effect leading to a reduction of higher-order moves because the exposure to migration is shifted to older ages when the probability of moving is lower. Methods: Combining hypothetical scenarios with empirical evidence from a range of countries in Europe, North America, Australia, and China, the paper demonstrates the relevance of tempo and ageing effects to migration analysis and proposes a framework for conceptualising these processes. Results: Our analysis suggests that both tempo and ageing effects are likely to occur if the general trend is towards later ages at migration. We show, however, that all-move data such as those collected in censuses is not suitable to analyse tempo effects because changes in migration behaviour are order specific. Drawing on retrospective survey data, we show that in 25 of 26 European countries considered in this paper, individuals who are late in leaving the parental home are less likely to progress to the second move and, as a result, report a lower number of migrations in adulthood than early movers. Contribution: The results underline the need to collect and analyse migration data by move order to understand migration trends while highlighting the paucity of such data

D’une intifâda l’autre, les quotidiens en Palestine

Depuis le déclenchement, en septembre 2000 à Jérusalem, de ce qu’il est convenu d’appeler la seconde intifâda palestinienne, ou l’intifâdat al-Aqsâ, il est devenu aussi facile de s’informer que difficile de donner un sens aux faits massivement exposés dans les médias. L’information primaire circulant sur les événements de Palestine a en effet augmenté en quantité et en intensité dramatique. La rapidité de sa transmission et le caractère hétérogène de ses sources – politiques, journalistiques,..