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Search Results: 1 - 10 of 448438 matches for " J-L Cornille "
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Mémoires d’Océans et d’Ailleurs: Traversées interocéaniques
J-L Cornille
Tydskrif vir letterkunde , 2013,
Abstract: Inter-oceanic passages: from the French Antilles to Madagascar and back In order to gauge the possibilities of producing a minor literature in French, as defined by Deleuze and Guattari in their groundbreaking work on Kafka, we have confronted two books of contemporary authors who position themselves at the forefront of francophone postcolonial literature: Le Nègre et l’Amiral (1988) by Rapha l Confiant, a writer from Martinique famous for his praise of creolity; and Za (2008) by Jean-Luc Raharimanana, a lesser-known and seemingly more radical writer from Madagascar, based in Paris. They both seem to share a common purpose of representing the population of their respective islands by their particular way of pronouncing the French language: either by creolizing it, as is the case with Confiant, or by pronouncing it with a lisp, as in Za. But these variations of the French language lead to totally opposite aesthetics. Whereas the first attempt is marked by excessive verbal display, the second one seems to function almost by default: a painful scream wrapped in near silence. Indeed, Le Nègre et l’Amiral is dominated by images of verticality and erection, which translates in the cooccurrence of multiple version of the same events, while Za favours the horizontality of bodies and corpses lying down. From within the politico-literary context in which they were published, these works offer two different solutions to the same problem: how to escape the normative tendencies enshrined in a major language such as French, and flee or chase the discourse of the master.
La régression parent-descendant dans le cas d'un nombre variable de mesures par parent
J-L Foulley
Genetics Selection Evolution , 1981, DOI: 10.1186/1297-9686-13-2-181
A simple empirical redshift indicator for gamma-ray bursts
J-L Atteia
Physics , 2003, DOI: 10.1051/0004-6361:20030958
Abstract: We propose a new empirical redshift indicator for gamma-ray bursts. This indicator is easily computed from the gamma-ray burst spectral parameters, and its duration, and it provides ``pseudo-redshifts'' accurate to a factor two. Possible applications of this redshift indicator are briefly discussed.
Gamma-ray bursts: towards a standard candle luminosity
J-L. Atteia
Physics , 1997,
Abstract: It is usual, in gamma-ray burst (GRB) studies, to compare the average properties of bright and faint GRBs, with the assumption that brightness classes reflect distance classes. When brightness is intented to reflect the distance to the sources, it is nevertheless important to use a quantity with a small intrinsic dispersion. We propose here a method to compare the intrinsic dispersion of various measures of GRB brightness. This method assumes that nearby bursters are homogeneously distributed in an Euclidean space with no density or luminosity evolution. We then use it to compare 5 measures of GRB brightness in the BATSE Catalog. Our analysis reveals that better (i.e. less dispersed) measures of brightness are obtained at low energy and that GRBs are much closer to standard candles below 100 keV than above. We suggest that a beaming of the emission above 100 keV could explain this behaviour.
Choosing a measure of GRB brightness that approaches a standard candle
J-L. Atteia
Physics , 1997, DOI: 10.1063/1.55422
Abstract: Studies using the GRB brightness as a distance indicator require a measure of brightness with a small intrinsic dispersion (close to a standard candle). There is unfortunately no general agreement on the definition of such a quantity. We show here that the comparison of the size-frequency curves obtained with various measures of brightness can be used to select the quantity which is closer to a standard candle. Our method relies on a few general assumptions on the burster spatial distribution, namely that nearby bursters are homogeneously distributed in an Euclidean space with no density or luminosity evolution. We apply it to 5 measures of GRB brightness in the Current BATSE Catalog and we find that the GRB size-frequency distribution depends significantly on the energy window used to measure the GRB brightness. The influence of the time window being, in comparison, negligible. Our method suggests that the best distance indicator in this Catalog is the fluence measured below 100 keV, indicating that GRB luminosities have a smaller intrinsic dispersion below 100 keV than above.
Are bright gamma-ray bursts a fair sample ?
J-L. Atteia
Physics , 1999,
Abstract: We conjecture that bright gamma-ray bursts (GRBs) are bright because they come from sources which are intrinsically over luminous and not because they come from nearby sources. We show that this hypothesis is supported by theoretical and observational arguments and that it explains some well-known properties of GRBs such as their Hardness-Intensity Correlation or the No-Host problem. We discuss the consequences of this hypothesis on our understanding of the properties of the GRB population.
Méthode de prise en compte de la consanguinité dans un modèle simple de simulation de performances
J-L Foulley, C Chevalet
Genetics Selection Evolution , 1981, DOI: 10.1186/1297-9686-13-2-189
Informing the Public About Health Risks How to Prepare a Press Release
Quenon J-L,Brodin M
Revue Médicale de l'Assurance Maladie , 2001,
Abstract: Health risks have become one of our society’s main priorities and the various medias often discuss this subject. At first, they lauded scientific and technological progress but soon began reporting accidents, failures and short-comings which were often spectacular and severe. The average citizen has difficulty making sense out of the sundry information available. Information disseminated by the media can transform individual health crises into a collective problem. The real risk involved can either be attenuated or amplified according to the way the message is delivered. Consequently, the quality of the information passed on needs to be improved by encouraging greater cooperation between the different players who supply the public with information: government agencies, institutions, health experts, professional societies and associations, journalists, committees and citizens’ interest groups. Using a number of specific examples, we offer a framework for better understanding and suggest some practical advice: for example, how to prepare and organise a press release intended for newspapers, radio and television. Successful communication will help those responsible for health-care management and average citizens make the most appropriate decisions.
Radon concentrations in karstic aquifers
M. Monnin,J-L. Seidel
Geofísica internacional , 2002,
Abstract: Time variations of radon-222 concentrations in the water of the Lamalou, France, karst aquifer have been measured. The measurements have been performed at the spring outlet of the aquifer as well as in boreholes drilled from the surface. Radon concentrations variations recorded in the main outlet and in a well located next to it are compared. The response to rainfall depends strongly on the season when rainfall occurs. During summer, a rain episode is followed by a radon response in the well but not at the spring. Furthermore, the decay of the radon signal obeys strictly the radioactive decay law. Accordingly, during summer the water of the aquifer barely moves horizontaly. On the contrary, during the rainy season, every rainfall induces a signal both in the well and at the spring reflecting a different mechanism and a mixing process of the water in the main outlet.
Management of severe pulmonary arterial hypertension
J-L. Vachiéry,G. Simonneau
European Respiratory Review , 2010,
Abstract: Pulmonary arterial hypertension (PAH) is a severe, progressive condition of the small pulmonary vessels that leads to increased pulmonary vascular resistance, right ventricular failure and death. Patients in World Health Organization functional class (WHO FC) IV are the most severely affected in terms of disease severity, symptomatic impairment, exercise capacity and haemodynamics, with a very poor prognosis and low survival rate. Recent developments in PAH-specific therapies have conferred significant prognostic improvements upon PAH patients, especially when coupled with management strategies such as goal-oriented therapy and combination treatment. Despite these important developments, the outlook for WHO FC IV PAH patients remains poor. This article examines the recommendations for WHO FC IV patients that appear in current PAH treatment guidelines and the research underpinning this guidance, and discusses possible future directions for treatment of this severely unwell patient population.
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