La difficile reconnaissance du caractère professionnel des atteintes à la santé mentale

Des évolutions récentes dans la prise en compte des risques psychosociaux ainsi que dans la réglementation, la jurisprudence et les pratiques administratives, ont permis une amélioration de la reconnaissance en accidents du travail ou en maladies professionnelles des atteintes à la santé mentale. Cependant, les démarches pour obtenir cette reconnaissance demeurent difficiles pour les salariés concernés, du fait de la complexité des procédures, mais aussi de l’écart entre le rôle prescrit des acteurs (employeur, médecin du travail, etc.) et leur conduite réelle, et enfin à cause du retentissement possible de la démarche sur la situation de la personne. L’accompagnement par des acteurs aux compétences complémentaires (médecin, psychologue, juriste) apparaît pertinent pour éviter les impasses.Recent developments in the consideration of psychosocial risks, as well as in regulations, jurisprudence and administrative practices have given rise to an improvement in the recognition of mental health damages as occupational accidents or occupational diseases. The formalities to gain this recognition, however, remain complicated for the employees involved because of the procedure complexities, the gap existing between the actors’ (employers, company doctors…) assigned role and actual behavior, last but not least the possible impact of the formalities on the person’s situation. The support offered by people with complementary expertise (doctors, psychologists, jurists…) seems appropriate to avoid reaching deadlock.La reciente evolución en la consideración de los riesgos psicosociales así como en la reglamentación, la jurisprudencia y las prácticas administrativas han permitido una mejora del reconocimiento de los daños a la salud mental como accidentes de trabajo o enfermedades profesionales. Sin embargo, el proceso para obtener este reconocimiento sigue siendo difícil para los trabajadores afectados, debido a la complejidad de los procedimientos, pero también debido a la diferencia entre el rol prescrito de los actores (empleador, médico de la empresa, etc.) y su comportamiento real, y, por último, por el posible impacto de este proceso sobre la situación de la persona. El acompañamiento por parte de los actores con habilidades complementarias (médico, psicólogo, abogado) parece relevante para evitar un impasse

Electron impact excitations of S2 molecules

Low-energy electron impact excitations of S_2 molecules are studied using the fixed-bond R-matrix method based on state-averaged complete active space SCF orbitals. Integral cross sections are calculated for elastic electron collision as well as impact excitation of the 7 lowest excited electronic states. Also, differential cross sections are obtained for elastic collision and excitation of the a^1 Delta_g, b^1 Sigma_g^+ and B^3 Sigma_u^- states. The integrated cross section of optically allowed excitation of the B^3 Sigma_u^- state agrees reasonably well with the available theoretical result.Comment: 12 pages, 3 figures. Chemical Physics Letters, in pres

Île-de-France

À la fois centre d’activités économiques, pôle culturel et destination de la grande majorité des exilés et réfugiés, l’Île-de-France, devenue une “région monde”, est un observatoire privilégié et singulier du phénomène migratoire, qui a contribué à son expansion territoriale et participé à son dynamisme économique. L’histoire de l’immigration postcoloniale en région continue, elle, à s’écrire au quotidien, et d’autres, comme celle des mouvements de sans-papiers et de mal-logés, y sont en deveni

Stable Isotope Evidence for Dietary Overlap between Alien and Native Gastropods in Coastal Lakes of Northern KwaZulu-Natal, South Africa

Tarebia granifera (Lamarck, 1822) is originally from South-East Asia, but has been introduced and become invasive in many tropical and subtropical parts of the world. In South Africa, T. granifera is rapidly invading an increasing number of coastal lakes and estuaries, often reaching very high population densities and dominating shallow water benthic invertebrate assemblages. An assessment of the feeding dynamics of T. granifera has raised questions about potential ecological impacts, specifically in terms of its dietary overlap with native gastropods.A stable isotope mixing model was used together with gut content analysis to estimate the diet of T. granifera and native gastropod populations in three different coastal lakes. Population density, available biomass of food and salinity were measured along transects placed over T. granifera patches. An index of isotopic (stable isotopes) dietary overlap (IDO, %) aided in interpreting interactions between gastropods. The diet of T. granifera was variable, including contributions from microphytobenthos, filamentous algae (Cladophora sp.), detritus and sedimentary organic matter. IDO was significant (>60%) between T. granifera and each of the following gastropods: Haminoea natalensis (Krauss, 1848), Bulinus natalensis (Küster, 1841) and Melanoides tuberculata (Müller, 1774). However, food did not appear to be limiting. Salinity influenced gastropod spatial overlap. Tarebia granifera may only displace native gastropods, such as Assiminea cf. ovata (Krauss, 1848), under salinity conditions below 20. Ecosystem-level impacts are also discussed.The generalist diet of T. granifera may certainly contribute to its successful establishment. However, although competition for resources may take place under certain salinity conditions and if food is limiting, there appear to be other mechanisms at work, through which T. granifera displaces native gastropods. Complementary stable isotope and gut content analysis can provide helpful ecological insights, contributing to monitoring efforts and guiding further invasive species research