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Search Results: 1 - 10 of 219564 matches for " Cécile Cornou "
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Multimethod characterization of the French Pyrenean valley of Bagnères-de-Bigorre for seismic hazard evaluation: observations and models
Annie Souriau,Emmanuel Chaljub,Cécile Cornou,Ludovic Margerin,Marie Calvet,Julie Maury,Marc Wathelet,Franck Grimaud,Christrian Ponsolles,Catherine Péquegnat,Mickael Langlais,Philippe Gueguen
Physics , 2012, DOI: 0120100293
Abstract: A narrow rectilinear valley in the French Pyrenees, affected in the past by damaging earthquakes, has been chosen as a test site for soil response characterization. The main purpose of this initiative was to compare experimental and numerical approaches. A temporary network of 10 stations has been deployed along and across the valley during two years; parallel various experiments have been conducted, in particular ambient noise recording, and seismic profiles with active sources for structure determination at the 10 sites. Classical observables have been measured for site amplification evaluation, such as spectral ratios of horizontal or vertical motions between site and reference stations using direct S waves and S coda, and spectral ratios between horizontal and vertical (H/V) motions at single stations using noise and S-coda records. Vertical shear-velocity profiles at the stations have first been obtained from a joint inversion of Rayleigh wave dispersion curves and ellipticity. They have subsequently been used to model the H/V spectral ratios of noise data from synthetic seismograms, the H/V ratio of S-coda waves based on equipartition theory, and the 3D seismic response of the basin using the spectral element method. General good agreement is found between simulations and observations. The 3D simulation reveals that topography has a much lower contribution to site effects than sedimentary filling, except at the narrow ridge crests. We find clear evidence of a basin edge effect, with an increase of the amplitude of ground motion at some distance from the edge inside the basin and a decrease immediately at the slope foot.
Households Credits, Financial Intermediation and Monetary Policies  [PDF]
Cécile Bastidon
Modern Economy (ME) , 2014, DOI: 10.4236/me.2014.510093
Abstract: This paper develops a theoretical model of financial intermediation with three original characteristics. Firstly, all sectors are taken into account within total outstanding credits, including households. Secondly, in periods of high financial strains, the relationship between prices and funding supply volumes may be non-monotonic. Finally, the occurrence of interbank credit rationing results in other sectors’ funding rationing in credit and securities markets. The central bank conducts a non-standard type monetary policy. We show that the characteristics of financial intermediation then determine the magnitude of transmission of a shock on households financing costs and the content of the resulting monetary policy.
Clinical Impact of Targeting Inaccuracy Due to Distortion of the Leksell Stereotactic Frame  [PDF]
Cécile Renier, Nicolas Massager
Open Journal of Modern Neurosurgery (OJMN) , 2018, DOI: 10.4236/ojmn.2018.83026
Abstract: Background: Distortion of the Leksell stereotactic frame can occur during surgical and radiosurgical frame-based procedures. The targeting accuracies of surgical procedures such as DBS surgery or frame-based biopsy, or Gamma Knife radiosurgical procedures, are related to the stereotactic frame that is commonly referred to a non-deformable referential system. Objective: To evaluate the clinical impact of frame distortion on accuracy of targeting in various stereotactic procedures. Methods: We studied the influence of increasing levels of distortion of the Leksell frame both on surgical procedures using the stereotactic arch, and on radiosurgical procedures with the Gamma Knife. For surgical procedures we applied the Target Simulator of Elekta to a frame submitted to different levels of frame distortion, and we measured the modifications of accuracy of targeting. For radiosurgical procedures the Leksell frame was applied on an anthropomorphic phantom and modifications of target coordinates were measured by an imaging method using the stereotactic CBCT of the Gamma Knife ICON. Results: For surgical procedures, we found a linear relation between the amount of the frame distortion and the extent of the deviation from the stereotactic target using the stereotactic arch (R2 = 0.99709). The level of bending of the frame is also linearly related to the level of inaccuracy of stereotactic targeting based on acquisition of MRI and CTscan with the Elekta imaging boxes (R2 = 0.96825). The inaccuracy of targeting related to frame bending can be avoided by a systematic control at the end of frame placement and by the use of the CBCT of the Gamma Knife Icon. Conclusion: Distortion of the frame is a significant source of clinical inaccuracy of targeting for stereotactic procedures. Frame bending must be checked after each frame placement and corrected if needed to avoid targeting inaccuracy during stereotactic surgery and radio-surgery procedures.
Analysis of comparative data with hierarchical autocorrelation
Cécile Ané
Mathematics , 2008, DOI: 10.1214/08-AOAS173
Abstract: The asymptotic behavior of estimates and information criteria in linear models are studied in the context of hierarchically correlated sampling units. The work is motivated by biological data collected on species where autocorrelation is based on the species' genealogical tree. Hierarchical autocorrelation is also found in many other kinds of data, such as from microarray experiments or human languages. Similar correlation also arises in ANOVA models with nested effects. I show that the best linear unbiased estimators are almost surely convergent but may not be consistent for some parameters such as the intercept and lineage effects, in the context of Brownian motion evolution on the genealogical tree. For the purpose of model selection I show that the usual BIC does not provide an appropriate approximation to the posterior probability of a model. To correct for this, an effective sample size is introduced for parameters that are inconsistently estimated. For biological studies, this work implies that tree-aware sampling design is desirable; adding more sampling units may not help ancestral reconstruction and only strong lineage effects may be detected with high power.
The Steampunk Doctor: Practicing Medicine in a Mechanical Age  [PDF]
Cécile Cristofari, Matthieu J. Guitton
Advances in Anthropology (AA) , 2014, DOI: 10.4236/aa.2014.42012
Abstract:

Influenced by both 19th-century literature and popular representations of science, the figure of the medical doctor in steampunk fiction is marked by ambiguity. At the same time a scientist, a wizard and a mechanic, the steampunk doctor exists halfway between respectability and illegitimacy, a manipulator of bodies, a wielder of mysterious powers, a respectable and ominous character at the same time. Their role includes but is not limited to healing bodies. Indeed, steampunk examines the consequences extraordinary medical discoveries can have on both individuals and societies. It questions the meaning of “improvement” in the context of medicine, and whether it is ethical for medical practitioners to bring human bodies beyond their normal state, to the point that normality itself has to be re-defined. This paper describes the figure of the steampunk doctor and details the place and power of medicine in steampunk worlds. On the one hand, the steampunk doctor can modify bodies at will, bringing bio-engineering on a par with regular engineering, and leading to questions about the boundaries (ontological and ethical) between humans and objects, living and inanimate matter. On the other hand, their work on individual bodies can lead to transformations of their society as a whole, by modifying entire groups to suit social or political agendas, or in a quest for personal power. In the end, the figure of the steampunk doctor brings to the forefront some ethical questionings about medicine, healing, bio-engineering and human enhancement that are very relevant to the present times, in spite of the deceptively retrospective aesthetics.

Os alimentos funcionais: a nova fronteira da indústria alimentar análise das estratégias da Danone e da Nestlé no mercado brasileiro de iogurtes
Raud, Cécile;
Revista de Sociologia e Política , 2008, DOI: 10.1590/S0104-44782008000200008
Abstract: functional foods, foods that promise to help in cure and prevention of disease, are the new tendency characterizing the food industry's powerful market at the beginning of the 21st century. yogurts, margarines, buttermilk, cereals, mineral water, etc. promise aid in curing or prevention of diseases such as those affecting the cardiovascular system, certain types of allergies, intestinal problems etc., among key factors that explain the success of functional foods are the growing concern with health and well-being, changes in food industry regulation and growing scientific evidence of the relationships existing between diet and health. we have chosen to analyze and compare the strategies of two multi-national firms (danone and nestlé) that exercise a rivalry on the shelves of brazilian supermarkets over who will prevail on the functional yogurt market. danone's activia was successfully introduced throughout a number of european countries in the mid-1990s and on the brazilian market in 2004, leading to a considerable renewal of the market for dairy products. in response, nestlé introduced nesvita in june of 2006. using the new economic sociology as our basis, we verify the existence of market struggles in which innovation and introduction of new products are necessities for firms that intend to maintain or establish leadership. within this field of struggle, the state holds a major role, defining the rules of the game both for partners and competitors.
Bourdieu e a nova sociologia econ?mica
Raud, Cécile;
Tempo Social , 2007, DOI: 10.1590/S0103-20702007000200008
Abstract: this article examines pierre bourdieu's sociology of the market, assessing both the scope and limits of the thinking of one of the most emblematic authors of the new french economic sociology. following a critical reading of some of his key texts, the article argues that bourdieu's work involves a genuinely sociological analysis of economic phenomena, insofar as he applies his analytic framework - structured around the key concepts of field and habitus - to the economic sphere, showing that the market is the product of a social construction. as well as highlighting the social genesis of economic dispositions and describing the market as a field of struggles where agents with different resources confront each other, bourdieu insists on the role of the state in regulating this market. in analyzing the economic sphere, he makes use simultaneously of a sociology of knowledge and a political sociology. however, although a pioneering analysis of economic beliefs, bourdieu's approach presents a series of limitations, including a certain ambiguity in relation to the motivations of modern economic agents and the delimitation of the economic sphere.
Petites mains et grandes enquêtes.
Cécile Dauphin
Genre & Histoire , 2011,
Abstract: PréludeSur les femmes en histoire, tant sur le métier d’historienne que sur la place des femmes dans l’histoire, j’ai déjà écrit. écriture à la troisième personne bien entendu, celle qui se pratique dans le milieu scientifique. Si je cède finalement à la pression amicale de la revue Genre et Histoire pour revisiter à la première personne ces pans de notre passé, je suis néanmoins décidée à tenir une certaine distance. Ici, je ne raconte pas ma vie. Dans cet exercice d’ego histoire, je n’e...
Robert Delpire, éditeur d’albums
Cécile Boulaire
Strenae : Recherches sur les Livres et Objets Culturels de l'Enfance , 2010, DOI: 10.4000/strenae.68
Abstract: Pourquoi un ex-étudiant en médecine, devenu très rapidement un éditeur de photographie estimé, puis un directeur d’agence recherché, s’est-il intéressé à l’album pour enfants, au point de publier, sur une durée d’une douzaine d’années, quelques-uns des albums les plus marquants qu’a connus la France de la décennie 1955-1965 ? Comment l’idée a-t-elle germé qu’on pouvait publier, dans la même maison que Doisneau,Cartier-Bresson et Robert Frank, des albums qu’André Fran ois, Reiner Zimnik et Ala...
Inventaire des albums pour enfants publiés par Robert Delpire
Cécile Boulaire
Strenae : Recherches sur les Livres et Objets Culturels de l'Enfance , 2010, DOI: 10.4000/strenae.85
Abstract: Collection 10 sur 10L’ANSELME Jean, FRAN OIS André, On vous l’a dit ? Paris : Delpire, 1955. (Impr. moderne du Lion) In-fol., 32 p., fig. et couv. en coul. 950 fr. Pas de mention de collection.FRAN OIS André, Les larmes de crocodile. Paris : Delpire, 1955. In-4° oblong, 38 p., 380 fr.Il existe une pré-publication des Larmes de crocodile en avril 1953 dans le n° 9 de la revue Neuf. La mention de collection Dix sur dix n’appara t que sur l’exemplaire du dép t légal de 1968, en nouveaux ...
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