1,053 research outputs found

    Pour une réhabilitation de la ferme de Lambruisse.

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    Modélisation et identification de facteurs environnementaux géographiques liés à des risques morbides : Application aux séquelles développées aprÚs le traitement d'une leucémie : Cohorte LEA

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    This thesis is an interdisciplinary approach combining Geography, Epidemiology and Statistics. It is a methodological thesis applying to a public health issue. The concept consist in developing a dialectical adapted to the geographic health and proposing or transposing probabilistic methods, geostatistical and datamining instruments, to model and to identify geographic environmental factors related to morbid risks. In this research the environment is considered in its integrity. It is described by spatiotemporal indicators: physicochemical, health and socioeconomic. The geographical environment of the individual and medical characteristics of targeted populations is also taken into account. Heuristic proposals aim to identify environmental health determinants, or contributing risk factors. The methods have been implemented or adapted to the issue. They are applicable and reproducible in all diseases studied in Geographic Health. In order, to illustrate these proposals, they are applied to squeals observed following the treatment of childhood leukemia - Cohort LEA. In developed countries, access to effective treatments leads to an increase of squeals incidence. Those have an impact on the quality of life. Therefore, post-cancer and children's health have positioned themselves at the core of social concerns in Europe and in France. Beyond the scientific goals, contributions in public health are expected. The idea is to provide operational space indicators to politicians in order to help them to take collective health measures. And for health professionals to be able to offer individual medical solutions, devoted to reduce the risk of exposure to environmental factors of the populations due to their geographical location. In consequence, to improve access to a good environmental health.Cette thĂšse s'inscrit dans le cadre d'une approche interdisciplinaire mĂȘlant la GĂ©ographie Ă  l'Ă©pidĂ©miologie et Ă  la Statistique. Il s’agit d’une thĂšse d’ordre mĂ©thodologique appliquĂ©e Ă  une problĂ©matique de santĂ© publique. L'idĂ©e est de concevoir une dialectique adaptĂ©e Ă  la gĂ©ographie de la santĂ© et de proposer ou transposer des mĂ©thodes probabilistes, gĂ©ostatistiques et d’apprentissage statistique afin de modĂ©liser, puis d’identifier des Facteurs Environnementaux (FE) gĂ©ographiques liĂ©s Ă  des risques morbides. Dans cette recherche l’environnement est considĂ©rĂ© dans ses multiples dimensions. Il est dĂ©crit par des indicateurs spatiotemporels physicochimiques, sanitaires et socio-Ă©conomiques. L’environnement gĂ©ographique des CaractĂ©ristiques Individuelles et MĂ©dicales (CIM) des populations ciblĂ©es est aussi pris en compte. Les propositions heuristiques visent Ă  identifier des DĂ©terminants Environnementaux de SantĂ© (DES) ou des facteurs de risques contributifs. La dialectique se veut opĂ©rationnelle et reproductible Ă  toutes les maladies. Les propositions sont appliquĂ©es Ă  des sĂ©quelles dĂ©veloppĂ©es aprĂšs le traitement d’une leucĂ©mie chez l’enfant - Cohorte LEA. Dans les pays dĂ©veloppĂ©s, l’accĂšs Ă  des traitements performants engendre une augmentation de l’incidence des sĂ©quelles - qui ont des rĂ©percussions sur la qualitĂ© de vie. Par consĂ©quent, l’aprĂšs-cancer et la santĂ© des enfants se sont positionnĂ©s au cƓur des prĂ©occupations sociales en Europe en gĂ©nĂ©ral et en France, en particulier. Au-delĂ  des objectifs scientifiques visĂ©s, des contributions en santĂ© publique sont attendues. Il s’agit de proposer des indicateurs spatiaux opĂ©rationnels permettant aux hommes politiques de mettre en place des mesures sanitaires collectives, et aux praticiens de santĂ© de proposer des solutions prĂ©ventives individuelles - visant Ă  rĂ©duire les risques environnementaux d’exposition auxquels sont assujetties les populations du simple fait de leur situation gĂ©ographique. Et ainsi, d’amĂ©liorer l’accĂšs Ă  une bonne santĂ© environnementale

    Récréation : des publics à accueillir Le témoignage du Conseil général des Bouches-du-RhÎne, gestionnaire d'espaces naturels

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    L'accueil du public est l'une des productions (non marchandes) de la forĂȘt mĂ©diterranĂ©enne. Les domaines du DĂ©partement des Bouches-du-RhĂŽne ont une longue tradition d'accueil des publics. Comment le gestionnaire public d'espace naturel envisage la gestion de ces espaces dans le cadre d'un dĂ©veloppement durable ? Quelles questions cela pose aux niveaux techniques, sociologiques ? Michel Bourrelly nous apporte des Ă©lĂ©ments de rĂ©ponse et, plus largement, dĂ©crit les relations de son institution avec les diffĂ©rents acteurs de la recherche

    Les forĂȘts dĂ©partementales des Bouches-du-RhĂŽne

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    Le Conseil général des Bouches-du-RhÎne, par une approche à la fois fiscale et d'aménagement du territoire, a su inventer la gestion de l'accueil des populations urbaines, nombreuses et variées, dans nos régions littorales

    Photon Total Cross-sections

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    We discuss present predictions for the total γγ\gamma \gamma and γp\gamma p cross-sections, highlighting why predictions differ. We present results from the Eikonal Minijet Model and improved predictions based on soft gluon resummation.Comment: 7 pages, 10 figures, LaTeX, requires espcrc2.sty, Talk presented by G. Pancheri at PHOTON-2003, International Meeting on Structure and Interactions of the Photon, Frascati, Italy, April 7-11, 200

    Aspects of Heavy Quark Production in Polarized Proton-Proton Collisions

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    We examine the spin-dependence of b-quark production at large transverse momentum in polarized proton-proton collisions. The leading-order (LO) 2 -> 2 subprocesses, g + g -> Q + Q-bar and q+ q-bar -> Q + Q-bar have a large `analyzing power', as measured by the average spin-spin asymmetry , at large p_T, approaching -100%. The contributions from next-to-leading order (NLO) 2 -> 3 processes are also discussed and found to be dominated at large transverse momentum by subprocesses with a large and positive partonic level spin asymmetry leading to strong cancellations with the LO predictions. The results suggest that b-quark production might constitute an interesting test of the spin-dependence of NLO QCD but they also point up the importance of a full calculation of the complete O(\alpha_S^3) spin-dependent corrections for a successful extraction of the polarized gluon distribution. Similarities to gluino pair production are also briefly discussed.Comment: 23 pages (LaTeX) + 8 postscript figures encoded through uufiles; PSU/TH/135, TAUP 2099-9

    Phytoplankton distribution in Mar Menor coastal lagoon (SE Spain) during 2017.

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    The Mar Menor is a Spanish coastal lagoon of great ecological and economic interest. The agricultural and tourist activities developed in the surroundings of the lagoon, together with the modifications in its channels of connection with the Mediterranean Sea, have notably a ected the quality of its waters, which is altering the natural balance of the ecosystem. In this work, an analysis of the density of phytoplankton present in the lagoon between the months of May to December 2017 was carried out. The results indicate a significant increase in phytoplankton density between 2500 and 67,300 cells/mL compared to previous data of 1981 (between 10 and 500 cells/mL). Concentration of Chlorophyll-a arrives to 13 ug/L and transparency of water reduces to 1.3 m according to Secchi disk depth. The presence of Chlorophyceae, Chrysophyceae, and nanoplanktonic Cryptophyceae stands out, while species diversity drops significantly. Observing the evolution of the lagoon, we can deduce that eutrophication process could increase. To avoid this, it would be necessary to implement control measures for the use of fertilizers in nearby growing areas and to study water treatment techniques to reduce nitrogen inputs so that phytoplankton densities can decrease
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