64 research outputs found

    RĂ©gĂ©nĂ©rer efficacement les peuplements de pin : des travaux souvent indispensables ! L’exemple des peuplements Ă  pin d’Alep en zone mĂ©diterranĂ©enne

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    La rĂ©gĂ©nĂ©ration naturelle est souvent un phase critique de la vie des peuplements forestiers, notamment pour les peuplements anciens et les espĂšces pionniĂšres. C’est ainsi le cas des vieilles pinĂšdes Ă  pin d’Alep en zone mĂ©diterranĂ©enne. Dans cet article, les auteurs testent l’impact de diverses perturbations de la vĂ©gĂ©tation et du sol qui peuvent influer sur cette rĂ©gĂ©nĂ©ration. Cette Ă©tude montre l’importance des travaux sylvicoles pour le renouvellement des peuplements

    Modeling and Identification of Passenger Car Dynamics Using Robotics Formalism

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    Régénération du pin d'Alep en Basse Provence. Impact des traitements du sol, de la végétation et des rémanents

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    Le pin d'Alep est une essence pionniĂšre majeure des rĂ©gions mĂ©diterranĂ©ennes. Elle permet une reconquĂȘte des milieux aprĂšs incendie ou sur les terres abandonnĂ©es. Cependant, sa rĂ©gĂ©nĂ©ration, une fois les peuplements installĂ©s et vieillissants, pose problĂšme. Cet article prĂ©sente les rĂ©sultats de l'impact de diffĂ©rents traitements de la vĂ©gĂ©tation, du sol et des rĂ©manents sur la rĂ©gĂ©nĂ©ration du pin d'Alep

    Installer des semis de chĂȘnes dans les pinĂšdes Ă  pin d'Alep en phase de renouvellement -

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    Les peuplements mélangés possÚdent de nombreux avantages, dont celui de présenter ne meilleure résilience face à des perturbations telles que les incendies, mais aussi les perturbations climatiques. La phase de régénération naturelle, avec plusieurs essences, représente donc une étape clé dans la vie du peuplement et pour son avenir. Cette étude décrit l'installation de glands dans une pinÚde en cours de renouvellement, selon divers traitements du sol et de la végétatio

    Social sciences research in neglected tropical diseases 2: A bibliographic analysis

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    The official published version of the article can be found at the link below.Background There are strong arguments for social science and interdisciplinary research in the neglected tropical diseases. These diseases represent a rich and dynamic interplay between vector, host, and pathogen which occurs within social, physical and biological contexts. The overwhelming sense, however, is that neglected tropical diseases research is a biomedical endeavour largely excluding the social sciences. The purpose of this review is to provide a baseline for discussing the quantum and nature of the science that is being conducted, and the extent to which the social sciences are a part of that. Methods A bibliographic analysis was conducted of neglected tropical diseases related research papers published over the past 10 years in biomedical and social sciences. The analysis had textual and bibliometric facets, and focussed on chikungunya, dengue, visceral leishmaniasis, and onchocerciasis. Results There is substantial variation in the number of publications associated with each disease. The proportion of the research that is social science based appears remarkably consistent (<4%). A textual analysis, however, reveals a degree of misclassification by the abstracting service where a surprising proportion of the "social sciences" research was pure clinical research. Much of the social sciences research also tends to be "hand maiden" research focused on the implementation of biomedical solutions. Conclusion There is little evidence that scientists pay any attention to the complex social, cultural, biological, and environmental dynamic involved in human pathogenesis. There is little investigator driven social science and a poor presence of interdisciplinary science. The research needs more sophisticated funders and priority setters who are not beguiled by uncritical biomedical promises

    Performance studies of the final prototype for the CASTOR forward calorimeter at the CMS experiment

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    We present performance results of the final prototype for the CASTOR quartz-tungsten sampling calorimeter, to be installed in the very forward region of the CMS experiment at the LHC. The energy linearity and resolution, the uniformity, as well as the spatial resolution of the prototype to electromagnetic and hadronic showers are studied with E=E= 10--200 GeV electrons, E=E= 20--350 GeV pions, and E=E= 50, 150 GeV muons in beam tests carried out at CERN/SPS in 2007

    Modified carbon-containing electrodes in stripping voltammetry of metals

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