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Search Results: 1 - 10 of 394 matches for " Christelle Inizan "
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L’institut océanographique de Paris
Christelle Inizan
In Situ : Revue de Patrimoines , 2011, DOI: 10.4000/insitu.865
Abstract: Quelques années après la reconstruction de la Sorbonne, l’architecte Henri-Paul Nénot s’est vu confier, dans un proche périmètre, la construction de trois instituts de recherche et d’enseignement. Deux étaient des commandes de l’université : l’institut de géographie et l’institut de chimie, le troisième relevait strictement de l’initiative privée. Albert 1er de Monaco est à l’origine de ce projet de l’institut océanographique, dont on conna t mal la genèse faute d’archives, et qui constituera le fil conducteur de notre étude. Cet article se propose de dégager certaines logiques constructives et décoratives inhérentes à cette typologie d’établissements scientifiques du début du XXe siècle, à laquelle se rattache l’institut de paléontologie humaine de Pontremoli, également création du prince monégasque. Few years after the rebuilding of Sorbonne University, Henri-Paul Nénot, a parisian architect, was trusted to build three research and education institutes closeby. Two were ordered by the university: the geographic institute and the chemistry institute; and the third depended on a strictly private initiative. No one was really able to identify the genesis of this project of oceanographic institute initiated by Albert 1er de Monaco because of the lack of records; this will be the framework of our study. This article will attempt to analyze some constructive and decorative paths inherent to this typology of scientific establishments from the beginning of the twenty century. The human paleontology institute designed by the architect Pontremoli, is also attached to theses twenty century paths, and is a creation of the prince of Monaco.
Découverte à Paris d’un plafond peint à décor de singeries attribué à Claude III Audran, Antoine Watteau et Nicolas Lancret
Christelle Inizan
In Situ : Revue de Patrimoines , 2011, DOI: 10.4000/insitu.805
Abstract: La récente découverte d’un plafond peint à décor de singeries est venue enrichir notre connaissance de l’art décoratif parisien de la fin du règne de Louis XIV. L’étude de cette uvre de grande qualité artistique, admirablement conservée, bien que modeste de proportion, a permis d’identifier deux des peintres : Claude III Audran et Antoine Watteau, et de proposer une troisième main : Nicolas Lancret. La date avancée de 1713 éclaire d’un jour nouveau la période de collaboration de ces artistes et replace cette réalisation décorative dans le contexte politique, culturel et artistique du quartier Saint-Germain, deux ans avant la Régence. The recent discovery of a rare ceiling painting in the way of the décor de singeries has enriched our knowledge of the ornemental Parisian art dating of the end of the Louis XIV’s reign. The study of this work, with great artistic quality, perfectly perserved, though modestly sized, allows us to identify two of the painters: Claude III Audran and Antoine Watteau; and enables us to put forward a third hand: Nicolas Lancret. The suggested date of 1713 provides us with a new theory on the period of theses artistes’ collaboration and replaces this decorative creation in the political, artistic and cultural context of Saint-Germain’s district, two years before Regence.
Homogeneous fractional embeddings
Pierre Inizan
Mathematics , 2008, DOI: 10.1063/1.2963497
Abstract: Fractional equations appear in the description of the dynamics of various physical systems. For Lagrangian systems, the embedding theory developped by Cresson ["Fractional embedding of differential operators and Lagrangian systems", J. Math. Phys. 48, 033504 (2007)] provides a univocal way to obtain such equations, stemming from a least action principle. However, no matter how equations are obtained, the dimension of the fractional derivative differs from the classical one and may induce problems of temporal homogeneity in fractional objects. In this paper, we show that it is necessary to introduce an extrinsic constant of time. Then, we use it to construct two equivalent fractional embeddings which retain homogeneity. The notion of fractional constant is also discussed through this formalism. Finally, an illustration is given with natural Lagrangian systems, and the case of the harmonic oscillator is entirely treated.
Esquisse du peuplement préhistorique au Yémen
Marie-Louise Inizan
Chroniques Yéménites , 1997,
Abstract: Le Yémen situé à l'extrême sud de l'Arabie est tout proche de l'Afrique orientale, berceau originel de l'humanité. Cette proximité confère donc au Yémen une place privilégiée pour la connaissance du cheminement de l'homme de l'Afrique vers l'Europe et l'Asie, les autres continents ayant été conquis par les seuls Hommes modernes. Puisque il est désormais admis qu' Homo Habilis de la famille des hominidés, a quitté l'Afrique il y a près de deux millions d'années, il reste à explorer les chemins...
Irreversibility, least action principle and causality
Jacky Cresson,Pierre Inizan
Mathematics , 2008,
Abstract: The least action principle, through its variational formulation, possesses a finalist aspect. It explicitly appears in the fractional calculus framework, where Euler-Lagrange equations obtained so far violate the causality principle. In order to clarify the relation between those two principles, we firstly remark that the derivatives used to described causal physical phenomena are in fact left ones. This leads to a formal approach of irreversible dynamics, where forward and backward temporal evolutions are decoupled. This formalism is then integrated to the Lagrangian systems, through a particular embedding procedure. In this set-up, the application of the least action principle leads to distinguishing trajectories and variations dynamical status. More precisely, when trajectories and variations time arrows are opposed, we prove that the least action principle provides causal Euler-Lagrange equations, even in the fractional case. Furthermore, the embedding developped is coherent.
Fractional embeddings and stochastic time
Jacky Cresson,Pierre Inizan
Mathematics , 2008,
Abstract: As a model problem for the study of chaotic Hamiltonian systems, we look for the effects of a long-tail distribution of recurrence times on a fixed Hamiltonian dynamics. We follow Stanislavsky's approach of Hamiltonian formalism for fractional systems. We prove that his formalism can be retrieved from the fractional embedding theory. We deduce that the fractional Hamiltonian systems of Stanislavsky stem from a particular least action principle, said causal. In this case, the fractional embedding becomes coherent.
Which Are the Factors Associated to Child Mistreatment? Use of a Routinely Collected Specific Dataset for Surveillance in a Belgian Pediatric Unit  [PDF]
Christelle Senterre, Brigitte Vanthournout
Health (Health) , 2014, DOI: 10.4236/health.2014.612171
Abstract: Introduction: Child abuse is a serious health problem with compelling evidence that the phenomenon is common throughout the world. The Center “SOS enfants ULB” is a specialized team, established in a pediatric ward, which had mission to prevent and to treat the situations of children victims of physical, sexual, psychological abuse or of neglect. Our objectives were to describe the characteristics of 439 children hospitalized for (suspicion of) maltreatment and to investigate different factors potentially associated with the children at risk of neglect or maltreatment, the children victims of neglect and the physically maltreated children. Methods: Chi square test and multinomial logistic regression models with clustered robust standard error were applied to assess the relationship between the three types of mistreatment and the potential associated factors. Results: Maltreatment was observed for almost one in two children (48.7%) and approximately four on ten (41.5%) were considered at risk. Physical abuse was the most prevalent (57.9%) among the maltreated children and neglect was the second most prevalent (37.4%) form of maltreatment. Regarding the criteria leading to hospitalisation, at least one protective criterion was observed for a little more than eight children on ten. The parental criteria have shown that social problems and conjugal conflicts were the most prevalent for this category of hospitalisation criteria. Conclusion: These data, concerning the hospitalized children for which there is (suspicion of) mistreatment, collected by this team make important contribution to describing child maltreatment and its associated factors. Despite the fact that these hospitalized cases may be probably more serious than those who were not reported, every event, however small it may be, should be known for better organizing each level of prevention.
Mission archéologique fran aise dans le jawf-hadramaout
Marie-Louise Inizan,Michel Mouton
Chroniques Yéménites , 1997,
Abstract: Mai 1995 (Marie-Louise Inizan, Michel Mouton) Une mission de reconnaissance a été effectuée au mois de mai afin d'évaluer sur le terrain les conséquences des événements militaires sur la région d'al-Abr, ath -Thanniya et Bir Hamad (secteur prospecté en 1993). En effet les résultats de 1993 (cf. Chroniques Yéménites 1993) avaient permis d'orienter les travaux selon trois axes principaux de recherche : 1- en préhistoire, la densité des sites reconnus le long du paléo-fleuve Jawf-Hadram...
Lagrangian for the Convection-Diffusion Equation
Jacky Cresson,Isabelle Greff,Pierre Inizan
Mathematics , 2011, DOI: 10.1002/mma.2651
Abstract: Using the asymmetric fractional calculus of variations, we derive a fractional Lagrangian variational formulation of the convection-diffusion equation in the special case of constant coefficients.
Da racializa??o do sexismo ao sexismo identitário entre imigrantes na Fran?a contemporanea
Hamel, Christelle;
Physis: Revista de Saúde Coletiva , 2006, DOI: 10.1590/S0103-73312006000100002
Abstract: this paper analyzes the way racism manipulates accusations of racism, and presents the effects of such discourses on discriminated individuals. it argues that, far from reducing sexist violence, the racist logic concealed by anti-sexism tends to reinforce it. our theses is based on data collected in a survey on experiences of racism, sexuality and hiv-infection risks management, carried out from 1997 to 2003, among 69 young males and females, aged 18-25 years, in france.
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