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Search Results: 1 - 10 of 32707 matches for " Jarry Daniel "
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Risk Zones of Human Leishmaniases in the Western Mediterranean Basin: Correlations between Vector Sand Flies, Bioclimatology and Phytosociology
Rispail, Philippe;Dereure, Jacques;Jarry, Daniel;
Memórias do Instituto Oswaldo Cruz , 2002, DOI: 10.1590/S0074-02762002000400004
Abstract: correspondence analysis was applied to sand fly sampling in 865 stations from the western mediterranean basin. the position of each of 24 species was determined with respect to the bioclimatic belts. thus, the multidimensional analyses manifest clear correlations between bioclimatic belts and their expression in the area, the phytosociological groupings, and vector species of visceral and cutaneous leishmaniases. the transfer of these data to usual maps allows to delimit the geographical distribution of these diseases in the western mediterranean basin and contributes to the determination, in a rational manner, of the high risk zones.
Risk Zones of Human Leishmaniases in the Western Mediterranean Basin: Correlations between Vector Sand Flies, Bioclimatology and Phytosociology
Rispail Philippe,Dereure Jacques,Jarry Daniel
Memórias do Instituto Oswaldo Cruz , 2002,
Abstract: Correspondence analysis was applied to sand fly sampling in 865 stations from the Western Mediterranean basin. The position of each of 24 species was determined with respect to the bioclimatic belts. Thus, the multidimensional analyses manifest clear correlations between bioclimatic belts and their expression in the area, the phytosociological groupings, and vector species of visceral and cutaneous leishmaniases. The transfer of these data to usual maps allows to delimit the geographical distribution of these diseases in the Western Mediterranean basin and contributes to the determination, in a rational manner, of the high risk zones.
The Four Principles of Geographic Routing
Aubin Jarry
Computer Science , 2014,
Abstract: Geographic routing consists in using the position information of nodes to assist in the routing process, and has been a widely studied subject in sensor networks. One of the outstanding challenges facing geographic routing has been its applicability. Authors either make some broad assumptions on an idealized version of wireless networks which are often unverifiable, or they use costly methods to planarize the communication graph. The overarching questions that drive us are the following. When, and how should we use geographic routing? Is there a criterion to tell whether a communication network is fit for geographic routing? When exactly does geographic routing make sense? In this paper we formulate the four principles that define geographic routing and explore their topological consequences. Given a localized communication network, we then define and compute its geographic eccentricity, which measures its fitness for geographic routing. Finally we propose a distributed algorithm that either enables geographic routing on the network or proves that its geographic eccentricity is too high.
VRAC: Simulation Results #1
Florian Huc,Aubin Jarry
Computer Science , 2009,
Abstract: In order to make full use of geographic routing techniques developed for large scale networks, nodes must be localized. However, localization and virtual localization techniques in sensor networks are dependent either on expensive and sometimes unavailable hardware (e.g. GPS) or on sophisticated localization calculus (e.g. triangulation) which are both error-prone and with a costly overhead. Instead of localizing nodes in a traditional 2-dimensional space, we use directly the raw distance to a set of anchors to route messages in a multi-dimensional space. This should enable us to use any geographic routing protocol in a robust and efficient manner in a very large range of scenarios. We test this technique for two different geographic routing algorithms, namely GRIC and ROAM. The simulation results show that using the raw coordinates does not decrease their efficiency.
VRAC: Virtual Raw Anchor Coordinates Routing in Sensor Networks -- Concepts and Experimental Protocol
Florian Huc,Aubin Jarry
Computer Science , 2009,
Abstract: In order to make full use of geographic routing techniques developed for large scale networks, nodes must be localized. However, localization and virtual localization techniques in sensor networks are dependent either on expensive and sometimes unavailable hardware (e.g. GPS) or on sophisticated localization calculus (e.g. triangulation) which are both error-prone and with a costly overhead. Instead of localizing nodes in a traditional 2-dimensional space, we intend to use directly the raw distance to a set of anchors to route messages in the multi-dimensional space. This should enable us to use any geographic routing protocol in a robust and efficient manner in a very large range of scenarios.
Survival advantage of siblings and spouses of centenarians in 20th-century Quebec
Valérie Jarry,Alain Gagnon,Robert Bourbeau
Canadian Studies in Population , 2012,
Abstract: Longevity runs in families, either through genetic or environmental influences. Using Quebec civil registration and historical Canadiancensuses, we compared the longevity of siblings and spouses of 806 centenarians to a group of controls, all born in Quebec at the turnof the 20th century. Our results show that siblings of centenarians, who share half of their genes and a common childhood environment,lived 3–4 years longer than their birth cohort. However, husbands and wives of centenarians lived 4 and 2.5 years longer than theircounterparts of the same sex, respectively, suggesting that longevity is also modulated by shared environment in adulthood.
VRAC: Theory #1
Aubin Jarry,Pierre Leone,Jose Rolim
Computer Science , 2010,
Abstract: In order to make full use of geographic routing techniques developed for sensor networks, nodes must be localized. However, traditional localization and virtual localization techniques are dependent either on expensive and sometimes unavailable hardware (e.g. GPS) or on sophisticated localization calculus (e.g. triangulation) which are both error-prone and with a costly overhead. Instead of actually localizing nodes in the physical two-dimensional Euclidean space, we use directly the raw distance to a set of anchors to produce multi-dimensional coordinates. We prove that the image of the physical two-dimensional Euclidean space is a two-dimensional surface, and we show that it is possible to adapt geographic routing strategies on this surface, simply, efficiently and successfully.
Gravity wave amplification and phase crest re-organization over a shoal
N. Jarry,V. Rey,F. Gouaud,D. Lajoie
Natural Hazards and Earth System Sciences (NHESS) & Discussions (NHESSD) , 2011, DOI: 10.5194/nhess-11-789-2011
Abstract: In this experimental work, both wave amplification and phase evolution, due to a submerged mound, are studied. In addition to the classical surface wave measurements, the experimental study takes advantage of photographs that underline crest re-organization above and down-wave the shoal. In particular, together with wave amplification up to more than twice the incident wave, a wave steepening is observed in certain conditions in both the wave direction and in the cross-section. Due to a phase crest separation downstream of the shoal, steepening in the cross-shore direction is enhanced (up to 30% above the steepening along the main direction of propagation). Physical aspects are discussed through the analysis of the diffraction effects on the wave properties.
Die Wirkung von Belamcanda chinensis abstammenden Phyto strogenen auf die Serum-LH-Spiegel und auf die Expression von strogenregulierten Genen im Uterus und im Knochen der ovarektomierten Ratte
Seidlova-Wuttke D,Christoffel V,Heiden I,Jarry H
Journal für Menopause , 2000,
Abstract: n Wurzeln der Iris-Art Belamcanda chinensis werden recht hohe Konzentrationen des Isoflavons Tectorigenin und seiner glykosylierten Form, Tectoridin, gefunden. Beide Substanzen hemmen, wie stradiol, die hypophys re LH-Sekretion und stimulieren nach Akut-Injektion die Osteoblastent tigkeit, d. h. die Genexpression von IGF-1, TGF-Beta, Osteocalcin und Kollagen 1a1 sind stimuliert. In den gleichen Tieren hat Tectorigenin keinen Effekt auf uterine Parameter, wie Gewicht, Genexpression von IGF-1 und TGF-Beta, welche durch stradiol stark stimuliert werden. Da der Uterus einerseits überwiegend strogenrezeptoren vom Alpha-Subtyp (ER-Alpha) exprimiert und andererseits Phyto strogene eine hohe Affinit t zum ER vom Beta-Subtyp haben, postulieren wir, da Tectorigenin überwiegend über den ER-Beta wirkt. Damit kommt diesem Isoflavon eine selektive strogenrezeptormodulator-(SERM-)Eigenschaft zu.
A fish bone-related hepatic abscess
Julien Jarry,Vien Nguyen,Adeline Stoltz,Marc Imperato
Clinics and Practice , 2011, DOI: 10.4081/cp.2011.e115
Abstract: We report an unusual case of pyogenic, hepatic abscess caused by fish bone penetration of the duodenum in a 68-year-old woman. The fish bone had migrated into the liver through the duodenal wall. The patient was initially admitted to our emergency room with abdominal pain, fever, and asthenia. A contrastenhanced abdominal coputed tomography (CT) scan showed a hepatic abscess in relation with a straight, foreign body, which had entered through the duodenal wall. Surgery was necessary to remove the foreign body, which was identified as a fish bone. The patient’s recovery was uneventful and she was discharged on postoperative day 10. This case is discussed together with the data collected by a medline-based extensive review of the literature.
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