247 research outputs found

    ÉTUDE EN LIGNE SUR ISOCÈLE DE LA DÉSINTÉGRATION 186Tl → 186Hg

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    L'Ă©tude de la dĂ©croissance 186Tl → 186Hg a Ă©tĂ© entreprise Ă  l'aide du sĂ©parateur en ligne IsocĂšle. Les niveaux 0+2 et 2+2 sont proposĂ©s Ă  trĂšs basse Ă©nergie. Un schĂ©ma de niveaux partiel est discutĂ© dans le cadre des modĂšles existants

    Enabling a More Externally Focused and Operational PLA – 2020 PLA Conference Papers

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    Although the People’s Liberation Army is not yet a global expeditionary force on par with the US military, the former has nevertheless significantly expanded its ability to operate abroad. Through enhanced technological capabilities, robust relationships with foreign militaries, increased access to overseas military bases and dual-use facilities, and the implementation of major structural reforms, the People’s Liberation Army has built a more integrated joint force capable of conducting a wider and more complex array of missions. This volume advances the understanding of the People’s Liberation Army’s capability to conduct overseas missions by examining China’s military relations with Europe, Africa, and Latin America; the country’s military activities in the Indian Ocean, polar regions, and Pacific Island countries; and the emerging roles of the People’s Liberation Army Rocket Force and the Joint Logistic Support Force. This volume finds the People’s Liberation Army is engaged in a wide range of activities throughout the world, including port calls, joint exercises, seminars, and personnel exchanges. China sells weapons to some parts of the world and seeks to acquire military and dual-use technology from others. In addition, the People’s Liberation Army seeks to increase its capability to operate in parts of the world, such as the Indian Ocean, Pacific Island countries, and polar regions, where the organization has only had a minimal presence in the past.https://press.armywarcollege.edu/monographs/1947/thumbnail.jp

    A new isomer in 125^{125}La

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    Levels in 125^{125}La have been studied via ÎČ+\beta ^+/EC decay of on-line mass-separated 125^{125}Ce using the HIGISOL technique. A new (390 ±\pm 40) ms isomer is definitely attributed to 125^{125}La by conversion electron measurements of the 107 keV E3 isomeric transition

    Beta-decay properties of 25^{25}Si and 26^{26}P

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    The ÎČ\beta-decay properties of the neutron-deficient nuclei 25^{25}Si and 26^{26}P have been investigated at the GANIL/LISE3 facility by means of charged-particle and Îł\gamma-ray spectroscopy. The decay schemes obtained and the Gamow-Teller strength distributions are compared to shell-model calculations based on the USD interaction. B(GT) values derived from the absolute measurement of the ÎČ\beta-decay branching ratios give rise to a quenching factor of the Gamow-Teller strength of 0.6. A precise half-life of 43.7 (6) ms was determined for 26^{26}P, the ÎČ\beta- (2)p decay mode of which is described

    Recurrent Scedosporium apiospermum mycetoma successfully treated by surgical excision and terbinafine treatment: a case report and review of the literature

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    Background: Scedosporium apiospermum is an emerging opportunistic filamentous fungus, which is notorious for its high levels of antifungal ‑resistance. It is able to cause localized cutaneous or subcutaneous infections in both immu‑ nocompromised and immunocompetent persons, pulmonary infections in patients with predisposing pulmonary diseases and invasive mycoses in immunocompromised patients. Subcutaneous infections caused by this fungus frequently show chronic mycetomatous manifestation. Case report: We report the case of a 70 ‑year ‑old immunocompromised man, who developed a fungal mycetoma‑ tous infection on his right leg. There was no history of trauma; the aetiological agent was identified by microscopic examination and ITS sequencing. This is the second reported case of S. apiospermum subcutaneous infections in Hungary, which was successfully treated by surgical excision and terbinafine treatment. After 7 months, the patient remained asymptomatic. Considering the antifungal susceptibility and increasing incidence of the fungus, Sce - dosporium related subcutaneous infections reported in the past quarter of century in European countries were also reviewed. Conclusions: Corticosteroid treatment represents a serious risk factor of S. apiospermum infections, especially if the patient get in touch with manure ‑enriched or polluted soil or water. Such infections have emerged several times in European countries in the past decades. The presented data suggest that besides the commonly applied voricona‑ zole, terbinafine may be an alternative for the therapy of mycetomatous Scedosporium infections

    Restauration morpho-dynamique et redynamisation de la section court-circuitée du Rhin en aval du barrage de Kembs (projet INTERREG / EDF)

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    National audienceThe Upper Rhine River has been heavily impacted by channelization for flood protection and navigation, and then by damming for hydropower generation. In normal non flooding conditions, most of the flows are diverted in a canalized section whereas the regulated “old Rhine” bypassed reach runs a minimum flow. Between Huningue and Neuf-Brisach, engineering works induced simplification and stabilization of the channel pattern from a formerly braiding sector to a single incised channel, hydrological modifications, bottom armouring due to bedload decrease, and thus ecological alterations. Two complementary and interdisciplinary projects have been initiated to restore alluvial morphodynamics: i) the international “INTERREG IV - Redynamisation of the old Rhine” project (2009-2012) coordinated by the Alsace region, France; ii) the left bank “controlled erosion” project launched by ElectricitĂ© de France (EDF) within Kembs hydroelectric station relicensing process since 2003-2004. The purpose of these projects is to evaluate the feasibility of an important hydro-morphological and ecological restoration plan on a 45 km long reach, through both field testing of bank erosion techniques at favourable locations, and artificial sediments input from right bank excavations. This will help define possible long term prospective scenarios, in order to restore sustainable sediment transport, morphodynamics variability and associated ecological functions. The study will involve historical analysis, hydro-morphological / hydraulic physical and numerical modelling, physical and ecological monitoring, and sociological aspectsLe Rhin alsacien-allemand a enregistrĂ© de profondes modifications morphologiques et hydrologiques Ă  la suite de sa correction et de sa rĂ©gularisation pour la protection contre les crues et la navigation, puis aprĂšs la construction de barrages hydro-Ă©lectriques. Les amĂ©nagements rĂ©alisĂ©s entre Huningue et Neuf-Brisach ont engendrĂ© une simplification et une stabilisation du style fluvial. Un fleuve en tresses a cĂ©dĂ© la place Ă  un chenal unique incisĂ©. Le fond de chenal est devenu pavĂ© Ă  cause d’une diminution des apports de charge de fond et des altĂ©rations Ă©cologiques ont Ă©tĂ© observĂ©es (simplification des habitats aquatiques et riverains). Deux projets complĂ©mentaires et interdisciplinaires ont Ă©tĂ© engagĂ©s afin de restaurer une dynamique des formes alluviales : i) le projet international INTERREG IV – Redynamisation du Vieux Rhin (2009-2012) sous l’impulsion de la rĂ©gion Alsace ; ii) le projet d’érosion maitrisĂ©e des berges de la rive gauche conduit par ElectricitĂ© de France (EDF) dans le cadre du renouvellement de la concession de l’amĂ©nagement de Kembs. L’objectif des deux projets est de dĂ©finir un plan de restauration hydro-morphologique et Ă©cologique conduisant Ă  la redynamisation d’un tronçon de 45 km. L’étude repose sur une analyse historique, l’exploitation de modĂšles Ă  la fois physiques et numĂ©riques, et les suivis morphologiques in situ d’une recharge artificielle en sĂ©diments et d’érosions de berge contrĂŽlĂ©es. Ces Ă©tudes de faisabilitĂ© sont complĂ©tĂ©es par des analyses Ă©cologique et sociologique pour apprĂ©cier l’impact socio-environnemental de ces projets

    Acanthaster planci Outbreak: Decline in Coral Health, Coral Size Structure Modification and Consequences for Obligate Decapod Assemblages

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    Although benthic motile invertebrate communities encompass the vast majority of coral reef diversity, their response to habitat modification has been poorly studied. A variety of benthic species, particularly decapods, provide benefits to their coral host enabling them to cope with environmental stressors, and as a result benefit the overall diversity of coral-associated species. However, little is known about how invertebrate assemblages associated with corals will be affected by global perturbations, (either directly or indirectly via their coral host) or their consequences for ecosystem resilience. Analysis of a ten year dataset reveals that the greatest perturbation at Moorea over this time was an outbreak of the corallivorous sea star Acanthaster planci from 2006 to 2009 impacting habitat health, availability and size structure of Pocillopora spp. populations and highlights a positive relationship between coral head size and survival. We then present the results of a mensurative study in 2009 conducted at the end of the perturbation (A. planci outbreak) describing how coral-decapod communities change with percent coral mortality for a selected coral species, Pocillopora eydouxi. The loss of coral tissue as a consequence of A. planci consumption led to an increase in rarefied total species diversity, but caused drastic modifications in community composition driven by a shift from coral obligate to non-obligate decapod species. Our study highlights that larger corals left with live tissue in 2009, formed a restricted habitat where coral obligate decapods, including mutualists, could subsist. We conclude that the size structure of Pocillopora populations at the time of an A. planci outbreak may greatly condition the magnitude of coral mortality as well as the persistence of local populations of obligate decapods
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