Dissertations / Theses on the topic 'Modèle médiateur'
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Naacke, Hubert. "Modèle de coût pour médiateur de bases de données hétérogènes." Versailles-St Quentin en Yvelines, 1999. http://www.theses.fr/1999VERS0013.
Full textLes systemes distribues accedent a des sources d'informations diverses au moyen de requetes declaratives. Une solution pour resoudre les problemes lies a l'heterogeneite des sources repose sur l'architecture mediateur / adaptateurs. Dans cette architecture, le mediateur accepte en entree une requete de l'utilisateur, la traite en accedant aux sources via les adaptateurs concernes et renvoie la reponse a l'utilisateur. Le mediateur offre une vue globale et centralisee des sources. Les adaptateurs offrent un acces uniforme aux sources, au service du mediateur. Pour traiter une requete de maniere efficace, le mediateur doit optimiser le plan decrivant le traitement de la requete. Pour cela, plusieurs plans semantiquement equivalents sont envisages, le cout (i. E. Le temps de reponse) de chaque plan est estime afin de choisir celui de moindre cout qui sera execute. Le mediateur estime le cout des operations traitees par les sources en utilisant les informations de cout que les sources exportent. Or, a cause de l'autonomie des sources, les informations exportees peuvent s'averer insuffisantes pour estimer le cout des operations avec une precision convenable. Cette these propose une nouvelle methode permettant au developpeur d'adaptateur d'exporter un modele de cout d'une source a destination du mediateur. Le modele exporte contient des statistiques qui decrivent les donnees stockees dans la source ainsi que des fonctions mathematiques pour evaluer le cout des traitements effectues par la source. Lorsque le developpeur d'adaptateur manque d'information ou de moyen, il a la possibilite de fournir un modele de cout partiel qui est automatiquement complete avec le modele generique predefini au sein du mediateur. Nous validons experimentalement le modele de cout propose en accedant a des sources web. Cette validation montre l'efficacite du modele de cout generique ainsi que celle des modeles plus specialises selon les particularites des sources et les cas d'applications
Paradis, Julie. "Validation d’un modèle explicatif des conséquences de l’agression sexuelle chez les adolescentes." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10624.
Full textHerault, Colombe. "Adaptabilité des services techniques dans le modèle à composants." Valenciennes, 2005. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/359967dd-fbfb-45b2-a91f-4224e73234ed.
Full textLe, lay Yvonnick. "Professionnalisation et mondialisation du rugby à XV : entre modèles sportifs et ancrages territoriaux." Thesis, Rennes 2, 2018. http://www.theses.fr/2018REN20060/document.
Full textThe aim of this research work is to wonder about the dialectic between the professionalization and the globalization of the rugby union, and the evolution of the resulting territorial anchorages, depending on the specific sporting model of the investigation lands that have been selected: Brittany, Munster and Georgia. The issue is to demonstrate to what extent the professionalization of the organizations and the sporting actors is at the same time the driving force of the rugby globalization and of new rugby territorial differentiations’ oligopolistic logics, on various levels in geographic terms. Being diffused into the domestic amateur championships, this professionalization stimulates dynamics in favor of the much competitive sporting territories and the best integrated to the rest of the globalized world, while being the vector of specific territorial identities. The selection of the three investigation lands stems from the relevantness of the interrogation on the link between the sporting models and the territorial anchorages to comprehend each model of rugby territorial production and the specific forms of the territorial anchorage of the rugby practice, considering this sport as a territorial mediator. For each investigation land, while proceeding by iteration, the triangulation method implemented allows to go deeper and to test the concepts that have been mobilized. Three major socio spatial analysis approaches have been focused: the structural approach, the systemic approach and the approach that highlights the actors’ role
Dang-Ngoc, Tuyet-Tram. "Fédération de données semi-structurées avec XML." Phd thesis, Université de Versailles-Saint Quentin en Yvelines, 2003. http://tel.archives-ouvertes.fr/tel-00733510.
Full textSchneider, Jean-Philippe. "Les rôles : médiateurs dynamiques entre modèles système et modèles de simulation." Thesis, Brest, 2015. http://www.theses.fr/2015BRES0067/document.
Full textCurrent Systems tend to become integrated with each others. However, this intégration may not be designed for the System. This trend raises the concept of System of Systems. A System of Systems is a System made of Systems which are managed independently, functionaly independent, collaborating, evolving and geographically distributed. The communication among the different teams eases the design of the System of Systems. This communication may be made through the use of models and simulation.However, System of Systems models and simulation models do not rely on the same modeling languages. In order to ensure coherency between the two types of models, simulation models should be obtained from System models. But this approach should take into account the constraints coming from the properties of System of Systems. System models made in different modeling languages should be handled, simulation of different kinds should be generated and the evolution of both modeling languages and simulation tools should be managed.In order to tackle these issues, we defined the Role4AII environment to manipulate System models made in heterogeneous modeling languages. Role4AII is based on the concept of rôles. Rôles enable to create simulations by accessing to information stored in model éléments despite their types differences. Role4AII is able to take as input serialized models from different modeling tools by using parser combinators. Parser combinators bring modularity and extensibility to the import features. Role4AII has been used on a System of System example: the MeDON seafloor observatory
Kühne, Nicolas. "Les pratiques de soins sous l'influence de la recherche : une approche cognitive de la diffusion du modèle des pratiques fondées sur des preuves scientifiques (Evidence-Based Practice) en soins infirmiers, en ergothérapie et en kinésithérapie en Suisse." Aix-Marseille 1, 2009. http://www.theses.fr/2009AIX10135.
Full textDang, Ngoc Tuyet Tram. "Federation de données semi-structurées avec XML." Phd thesis, Université de Versailles-Saint Quentin en Yvelines, 2003. http://tel.archives-ouvertes.fr/tel-00005162.
Full textsont irrégulières : des données peuvent manquer, des concepts
similaires peuvent être représentés par différents types de données,
et les structures même peuvent être mal connues. Cette absence
de schéma prédéfini, permettant de tenir compte de toutes les données
du monde extérieur, présente l'inconvénient de complexifier les
algorithmes d'intégration des données de différentes sources.
Nous proposons une architecture de médiation basée entièrement sur XML.
L'objectif de cette architecture de médiation est de fédérer des sources de
données distribuées de différents types.
Elle s'appuie sur le langage XQuery, un langage fonctionnel
conçu pour formuler des requêtes sur des documents XML. Le médiateur analyse
les requêtes exprimées en XQuery et répartit l'exécution de la requête
sur les différentes sources avant de recomposer les résultats.
L'évaluation des requêtes doit se faire en exploitant au maximum les
spécificités des données et permettre une optimisation efficace.
Nous décrivons l'algèbre XAlgebre à base d'opérateurs conçus
pour XML. Cette algèbre a pour but de construire des plans d'exécution pour
l'évaluation de requêtes XQuery et traiter des tuples d'arbres XML.
Ces plans d'exécution doivent pouvoir être modélisés par un modèle
de coût et celui de coût minimum sera sélectionné pour l'exécution.
Dans cette thèse, nous définissons un modèle de coût pour les données
semi-structurées adapté à notre algèbre.
Les sources de données (SGBD, serveurs Web, moteur de recherche)
peuvent être très hétérogènes, elles peuvent avoir des
capacités de traitement de données très différentes, mais aussi avoir
des modèles de coût plus ou moins définis.
Pour intégrer ces différentes informations dans
l'architecture de médiation, nous devons déterminer comment communiquer
ces informations entre le médiateur et les sources, et comment les intégrer.
Pour cela, nous utilisons des langages basés sur XML comme XML-Schema et MathML
pour exporter les informations de métadonnées, de formules de coûts
et de capacité de sources.
Ces informations exportées sont communiquées par l'intermédiaire d'une interface
applicative nommée XML/DBC.
Enfin, des optimisations diverses spécifiques à l'architecture de médiation
doivent être considérées. Nous introduisons pour cela un cache sémantique
basé sur un prototype de SGBD stockant efficacement des données XML
en natif.
Bouix, Emmanuel. "Modèles de flux et de composants pour applications multimédias distribuées dynamiquement reconfigurables." Pau, 2007. http://www.theses.fr/2007PAUU3029.
Full textOur works deal with deployment and dynamic reconfiguration of distributed multimedia applications through the Internet. This network brings an heterogeneous runtime context at both hardware and software levels. These characteristics must be taking into consideration at design and implementation time of multimedia applications. The chosen solution consists in supervising their runtime in order to manage the required and provided quality of service. This supervision is done by a dynamic reconfiguration platform. Our previous works propose to specify these applications with functional graphs which detail their architecture. It is defined by roles (graph nodes) and data (graph edges) exchange between them. These specifications imply to define a model for the data. This model is based on a data flow structure which allows to provide synchronization policies in order to keep both temporal and sequence properties during the data transport and handling in applications. Then, a component model is provided in order to permit an implementation in accordance with functional graphs. It defines a container used to run components which implement the roles. A connector model is also introduced with the aim of transporting data flows through these applications without loosing their synchronization properties. This transport is realized in distributed or local ways. Operators are defined in order to implement the functional specifications described on the graphs. All the entities of the model can be supervised by the platform. A prototype allows to validate these models in an experimental way
Martin, Nicolas. "Identification de SHISA3 comme gène médiateur de la transition épithélio-mésenchymateuse dans le cancer de la prostate résistant au docetaxel." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA11T057/document.
Full textProstate cancer is the most common cancer in men and the third leading cause of cancer mortality in France. Since 2004, docetaxel is the standard treatment for metastatic castration-resistant prostate cancer (mCRPC). However, nearly half of treated patients develop resistance to chemotherapy. The aim of my thesis is to identify molecular predictors to select patients who will respond to docetaxel chemotherapy. My second goal is to identify new therapeutic targets to overcome this resistance, by studying the molecular mechanisms involved in the development of resistance.To this purpose, genes and microRNAs expression profiles were established in several cellular models of docetaxel-resistant prostate cancer. The integration of these high-throughput data suggested that the epithelial-mesenchymal transition (EMT) was involved in the mechanism of docetaxel resistance. Deciphering the EMT mechanism observed in our cellular models allowed the identification of SHISA3 as a new regulator of this process. SHISA3 is highly under-expressed in docetaxel resistant cells which present a mesenchymal phenotype. Interestingly, SHISA3 is also down-regulated in a large variety of human tumors. The inhibition of SHISA3 in sensitive cells induced a complete EMT, characterized by loss of cellular junctions, expression of mesenchymal transcription factors, and increased migratory capacity. The study of its mechanism of action allowed us to highlight the interaction of SHISA3 with TGFβRII. We showed in docetaxel-resistant cells that pharmacological inhibition of the TGFβ signalling pathway induces sensitization to docetaxel, demonstrating the importance of the regulation of this pathway in the resistance to chemotherapy.In parallel, we developed a docetaxel-resistant prostate cancer model in mice. The establishment of this model is critical for the preclinical validation of new targeted therapies. Tumors obtained from this new model are characterized by the under-expression of SHISA3 and the expression of EMT markers. This model will allow the validation of the therapeutic potential of co-treatment with docetaxel and TGFβ signalling pathway inhibitors in vivo. Interestingly, we observed that SHISA3 expression is correlated with response to docetaxel treatment in vivo. These results suggest that SHISA3 could be a biomarker of response to docetaxel chemotherapy
Maeder, Anne. "Modèles et processus de gestion du changement organisationnel : l'intérêt des dispositifs d'interprétation et de médiation." Lille 1, 2003. https://ori-nuxeo.univ-lille1.fr/nuxeo/site/esupversions/b95cdd72-0a84-4c8a-8d2f-cb3dd967001c.
Full textSavall, Marc. "Une Architecture d'agents pour la simulation : le modèle YAMAM et sa plate-forme Phoenix." INSA de Rouen, 2003. http://www.theses.fr/2003ISAM0002.
Full textCazalis, Julia. "Modèle ex-vivo de sang complet : propriétés immunomodulatrices des tétracyclines et différence de réponse entre patients atteints de parodontite et sujets sains." Thesis, Université Laval, 2009. http://www.theses.ulaval.ca/2009/26275/26275.pdf.
Full textVadet, Mathieu. "Un modèle de services logiciels pour la spécialisation des intergiciels à composants." Lille 1, 2004. http://www.theses.fr/2004LIL10115.
Full textParillaud, Romain. "Définir le rôle de chimiokines comme médiateurs pathologiques de la neuroinflammation dans le modèle MPTP de la Maladie de Parkinson." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066627.
Full textParkinson's disease (PD) presents signs of neuroinflammation, which can be beneficial or deleterious for dopaminergic (DA) neurodegeneration. We have analyzed the characteristics of such pathological interactions between DA neurons, glial cells and infiltrating immune cells. Using the neurotoxic MPTP mouse model of PD and focusing on chemokines, my thesis objectives were: 1) to identify using laser-microdissection and RNA profiling, the neuronal and glial inflammatory signals in the affected Substantia Nigra (SN) and 2) to assess the role of promising identified chemokine candidates during DA neurodegeneration. We have focused on the lymphocytic CXCL16-CXCR6 and the monocytic CCL2-CCR2 axes. We have found early microglial CXCL16 induction and parallel SN infiltration of CXCR6 lymphocyte subpopulations. CXCR6-deletion reduced infiltration of specific lymphocyte subpopulations, but did not affect the known deleterious infiltration of CD4 T-lymphocytes. For the CCL2-CCR2 axis, we found evidence for limited SN infiltration of CCR2 monocytes, which was preceded by transient astrocytic CCL2 induction in MPTP mice, but a prolonged CCL2 induction in MPTP monkeys, suggesting a potential relevance for human PD. While CCR2-gene deletion did not affect loss of DA neurons, astrocytic CCL2 overexpression increased MPTP induced DA neural loss, revealing the principally neurotoxic nature of infiltrating CCR2 monocytes in a PD-like environment. Unexpectedly, we also found that the known increased DA loss in CX3CR1-KO mice was mediated indirectly via over-induction of the CCL2-CCR2 axis. Combined, our results suggest a potential deleterious role of the CCL2-CCR2 axis in actual human PD
Louvet, Cédric. "Identification et étude de nouveaux médiateurs du rejet et de l'induction de tolérance dans un modèle d'allogreffe chez le rat." Nantes, 2004. http://www.theses.fr/2004NANT26VS.
Full textUnderstanding of immune mechanisms leading to allograft rejection or tolerance is essential to improve organ transplantation in human, with the aim to avoid immunosuppressive treatments. The first part of this thesis is devoted to the study of the role of a new TNF family member, TRANCE, in allograft rejection in the rat. We show that the TRANCE-RANK pathway participates in acute rejection processes as well as in the development of CD40L-independent chronic rejection. The second part, representing the main objective of this thesis, consists in isolating genes specifically expressed in cardiac allografts in a rat model of tolerance induction by donor-specific blood transfusions (DST). We have set up a methodology of gene searching using suppressive subtractive hybridization and real-time quantitative PCR. We show that the chemokine Fractalkine and its receptor CX3CR1 are strongly expressed in tolerated grafts, and that host CD8+ cells, which are required for tolerance, control this induction. Moreover, we have identified a molecule of unknown function which we named TORID (TOlerance-Related and InduceD transcript). We show that TORID belongs to the CD20 family and is localized at the nuclear envelope of dendritic cells and macrophages. TORID expression is associated with the inactivation state of these cells. Taken together, these results contribute to a better understanding of the mechanisms governing rejection or tolerance induction in this model
Loncle, Nicolas. "Rôles distincts des sous-unités du module CDK8 du complexe médiateur de la transcription au cours du développement de la drosophile." Toulouse 3, 2007. http://www.theses.fr/2007TOU30075.
Full textLajmi, Amine. "Usine logicielle de composants de simulation de procédés CAPE-OPEN." Paris 6, 2010. http://www.theses.fr/2010PA066062.
Full textParrend, Pierre. "Software security models for service-oriented programming (SOP) platforms." Lyon, INSA, 2008. http://theses.insa-lyon.fr/publication/2008ISAL0117/these.pdf.
Full textLes plates-formes à composants de service (SOP pour Service-oriented Programming) sont des environnements d’exécution génériques qui garantissent des applications conçues selon un modèle architectural propre. Cependant, peu d’outils existent pour garantir l’innocuité des composants installés. Nous proposons par conséquent d’adapter les méthodes d’Assurance de Sécurité Logicielle pour les plates-formes SOP, d’effectuer une analyse de sécurité correspondante et de fournir des mécanismes de protection adaptés. Les mécanismes de protection proposés sont OSGi Robuste (Hardened OSGi), un ensemble de recommandations pour l’implémentation de plates-formes OSGi, CBAC (Component-based Access Control), un mécanisme de contrôle d’accès flexible mis en œuvre à l’installation, et WCA (Weak Component Analysis) qui identifie les vulnérabilités exploitables dans les composants SOP selon l’exposition du code. CBAC et WCA utilisent l’analyse statique du Bytecode pour automatiser la validation des composants lors de leur installation
Kern, Aurélie. "Inflammation cutanée lors de la transmission vectorielle de la borreliose de Lyme : étude sur modèle murin." Strasbourg, 2011. http://www.theses.fr/2011STRA6157.
Full textLyme disease, is an infectious disorder caused by a tick-transmitted bacteria : Borrelia burgdorferi. The skin constitutes an essential interface in this arthropod borne disease. Indeed, the primary manifestation is a cutaneous inflammation, the erythema migrans. Dissemination of spirochetes from the site of inoculation can lead to other manifestations typically involving the skin, heart, joints or central nervous system. Mechanisms responsible of this specific dissemination are not known. In this project we focused on the cutaneous innate immune response during Lyme disease transmission. Part of skin innate immunity is constituted by the secretion of antimicrobial peptides (AMPs), cytokines and chemokines. We developed two experimental strategies. In vitro to measure the specific response from skin resident cells: keratinocytes. In vivo we challenged C3H/HeN mice with spirochetes from B. Burgdoferi sensu stricto strains initially isolated from human clinical manifestation. In conclusion, we propose that tick saliva has a property not previously described : an anti-alarmin effect. Tick saliva is an essential actor in the pathogenesis of skin inflammation. Furthermore, we showed a clear difference in the skin innate immunity according to the strain tested. The skin by its immunity and the specificity of its different resident cells likely plays a major role in the development of Borrelia infection in the vertebrate host. There, an intense bacterial multiplication occurs. Some specific factors of both, the bacteria (like OspC and BBK32) and the host (like AMPs and MCP-1), display a sophisticated interaction that likely further orientate the bacterium in the rest of the body
Picant, Sébastien. "Définition d'un modèle opérationnel de gestion dynamique des exceptions dans le cadre d'échanges B2B sans accord mutuel préalable." Caen, 2011. https://hal.archives-ouvertes.fr/tel-01080706.
Full textB2b exchanges are electronic exchanges between businesses, and especially the exchange ofelectronic business documents between enterprise information systems. In order to be able toexchange business documents automatically, these information systems must be compatible. There are three levels of compatibility requirements: the technical level, the data level and theprocess level. This thesis focuses on the process compatibility. Each enterprise has its own business process describing its business logic. This process iscomposed of a private part, representing the enterprise's internal processes, and a public partdefining the choreography, that is the sequencing of exchanged documents. Currently, in orderto engage into a b2b exchange, business partners need to agree beforehand on a common cho-reography and to adapt their information systems to it. The goal of our work is to get rid of thisdesign time by allowing enterprises to interact even when their choreographies are different. Our approach consists in designing a mediation multiagent system, relying on a social com-mitment model, that is able to detect dynamically exceptions (due to incompatibilities bertweenpartners' choreographies) and to adapt its behavior to compensate for them. This system in-terprets the semantics of the exchanged documents in order to determine their effects on thecurrent interactions and to anticipate the possible exceptions that may occur
Jude, Baptiste. "Rôle de médiateurs de l'inflammation dans l'altération de la fonction musculaire : étude des effets du sepsis et de la chimiothérapie sur un modèle murin." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0145/document.
Full textMuscular dysfunction is associated with a worsen outcome for different pathologies. During this thesis, we have focused on mediators of the inflammation, such as cytokines, and their effects on heart and striated muscle function. In the first study, we have shown that the TNF-α decreased the heart contractile force by PKC pathway activation, but that the membrane excitability remained unchanged. In the second study, we showed that IL-13 increased the heart contraction, by the activation of β2 adrenergic - PKA pathway, and increased the membrane excitability of cardiomyocytes associated to an increase of the number of channels at the membrane level. Nevertheless, IL-13 lost its effect on septic heart. In the third study, we showed that the chemotherapy, docetaxel, was able to induce muscle atrophy associated to the release of pro-inflammatory cytokines, and a decrease of the contractile force of the skeletal muscle. However, the addition of dantrolene, an inhibitor of calcium channels, can prevent these deleterious effects. For the last study, we showed that the inhibition of TGF-α pathway can have beneficial effects on diaphragm dysfunction during sepsis, by preserving both muscle mass and muscle contractile force
Bocquet, Aurélien. "Infrastructure logicielle multi-modèles pour l'accès à des services en mobilité." Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10132/document.
Full textThe middlewares are nowadays unavoidable when developing dlstributed applications. Every design needs adapted and efficient· tools. ln addition, their context of deployment needs special mechanisms in order to adapt to it. To do so, the middlewares offer different programming and communication models, supplying efficient ways to communicate in some situations. ln mobility, interoperability becomes unavoidable, and the context changes. This thesis deals with the requirements of a middleware in mobility. We thus propose a multi-model approach, based on the current works in this domain, and presenting innovative concepts. This approach is composed by a generic programming model and by a combination of communication models. Adaptation policies define the rules of combination of models, regarding context observations and dynamic adaptation mechanisms allow to handle the context in realtime, and to reconfigure the system when it is running. Our approach has been validated through a concrete application to problems caused by the use of an embedded Intemet proxy in trains: the design and development of a mufti-model graft iIIustrated and justified our approach, and the evaluation of this graft demonstrated the benefits of this approach via-a-vis the changes of context. We also designed and developed our multi-model software infrastructure, proposing ail these concepts, and thus allowing to benefit from our multi-model approach
Simar-Blanchet, Anne-Emmanuelle. "Régulation transcriptionnelle des gènes codant pour des inhibiteurs de protéases à sérine par l'hormone de croissance et les médiateurs de l'inflammation : Mécanismes moléculaires." Montpellier 2, 1997. http://www.theses.fr/1997MON20168.
Full textRaïes, Karine. "Niveau de participation à une communauté virtuelle de marque et fidélité de la marque : effets médiateurs de l'engagement envers la communauté et envers la marque." Grenoble 2, 2009. http://www.theses.fr/2009GRE21014.
Full textThis thesis aims at verifying the effect of consumer's participation level to a virtual brand community on his brand loyalty intentions. The concept of commitment is introduced as mediator of the relationship between consumer participation to virtual brand community and brand loyalty intentions. Given the particularity of communities, two aspects of commitment are considered: brand commitment and community commitment. The theoretical model is tested on a sample of 1065 participants to a virtual community of "Nikon France". Results support a double and successive mediation of community commitment and of brand commitment in the relationship between community participation and brand loyalty. Moreover, three moderators are identified in the model: membership length, expertise and community participation benefits
Bondé, Lossan. "Transformations de modèles et interopérabilité dans la conception de systèmes hétérogènes sur puce à base d'IP." Lille 1, 2006. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2006/50376-2006-Bonde.pdf.
Full textTillet, Solenne. "Effets de l'inhibition des protéases de la coagulation dans un modèle porcin d'ischémie reperfusion rénale." Thesis, Poitiers, 2014. http://www.theses.fr/2014POIT1412.
Full textOrgan shortage is a major limitation for transplantation, then since 2005 the use of deceased after cardiac arrest donors (DDAC) became legal in France. However these organs undergo severe ischemia-reperfusion injury, partly due to stasis activated coagulation. Micro-thrombi impair a correct reperfusion of the implanted organ. Conversely activated renal endothelium is the cause of an amplification of coagulation. This leads to increased production of proinflammatory molecules via the PAR (protease-activated receptors) activation by coagulation factors IIa and Xa. In this work we have used a severe in vivo ischemia-reperfusion model and tested the effect of inhibitors of Xa and IIa on the outcome of renal autotransplantation. One of these synthetic molecules was an anti-Xa heparinoid, while the other was acombined of direct anti-IIa + anti-Xa heparinoid. The pre-clinical model included a sequence of warm ischemia followed by a cold storage 24 h at 4°C in UW, mimicking what happens in DDAC. The use of both molecules during peri-preservation was followed by a reduction of fibrosis and inflammation, known to cause long term kidney loss. In an in vitro model, we have shown that beneficial effects of the combined anti IIa-Xa could be the consequence of a reduction in endothelial activation and subsequent inflammation. We conclude that anti Xa, and anti Xa-IIa, use during organ conservation, is beneficial for kidney function and survival and that they may be used as protectors against chronic renal dysfunction
Lumineau, Nicolas. "Organisation et localisation de données hétérogènes et réparties sur un réseau Pair-à-Pair." Paris 6, 2005. http://www.theses.fr/2005PA066436.
Full textBourgoin, Frédéric. "La contribution du stress oxydatif et de médiateurs inflammatoires dans les complications vasculaires, métaboliques et moléculaires induites chez le rat soumis à une alimentation riche en gras et en sucre, un modèle de résistance à l'insuline." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29180/29180.pdf.
Full textVisceral obesity has been identified as the main cardiovascular disease risk factor that contributes to insulin resistance. Bad eating habits and sedentary lifestyle can contribute to obesity, but can also affect independently and unfavourably the metabolic and vascular insulin actions. The aim of this research project was to determine the impact of a high fat high sucrose diet (HFHS) on endothelial function as well as the establishment of an oxidative stress and inflammatory response in an animal model of dietary-acquired insulin resistance and obesity. Precisely, the objective of chapter 2 was to develop a new animal experimental model, the rat fed with a diet rich in saturated fat and refined sugar, representative of the high-energy diets frequently consumed by a large percentage of North American. The aim of chapter 3 was to determine the effects of a preventive treatment with an antioxidant, tempol, on endothelial function as well as glucoregulatory and hemodynamic actions of insulin in this animal model. The objective of chapter 4 was to study the effects of HFHS diet and tempol on the expression and activity of markers of insulin signalling pathways, oxidative stress and inflammation. We noted that the HFHS diet altered the endothelium-dependent vasodilation, decreased insulin-stimulated glucose transport and insulin sensitivity as well as reduced expression and activation of many insulin signalling pathway proteins. We also identified oxidative stress or inflammatory markers that could contribute to endothelial function degradation and take part in vascular and metabolic complications induced by the HFHS diet, in the rat. We demonstrated that many of those alterations could be avoided, attenuated or prevented by an early intervention aimed at controlling oxidative stress. This research project provided a better understanding of the implication and the link between endothelial NO and the oxidative stress as well as the inflammation induced by a HFHS diet, in an animal model of diet-induced insulin resistance and obesity.
Rottenberg, Sam. "Modèles, méthodes et outils pour les systèmes répartis multiéchelles." Thesis, Evry, Institut national des télécommunications, 2015. http://www.theses.fr/2015TELE0003/document.
Full textComputer systems are becoming more and more complex. Most of them are distributed over several levels of Information and Communication Technology (ICT) infrastructures. These systems are sometimes referred to as multiscale systems. The word “multiscale” may qualify extremely various distributed systems according to the viewpoints in which they are characterized, such as the geographic dispersion of the entities, the nature of the hosting devices, the networks they are deployed on, or the users’ organization. For one entity of a multiscale system, communication technologies, non-functional properties (in terms of persistence or security) or architectures to be favored may vary depending on the relevant multiscale characterization defined for the system and on the scale associated to the entity. Moreover, ad hoc architectures of such complex systems are costly and non-sustainable. In this doctoral thesis, we propose a multiscale characterization framework, called MuSCa. The framework includes a characterization process based on the concepts of viewpoints, dimensions and scales, which enables to put to the fore the multiscale characteristics of each studied system. These concepts constitute the core of a dedicated metamodel. The proposed framework allows multiscale distributed systems designers to share a taxonomy for qualifying each system. The result of a characterization is a model from which the framework produces software artifacts that provide scale-awareness to the system’s entities at runtime
Lasnier, Gilles. "Une approche intégrée pour la validation et la génération de systèmes critiques par raffinement incrémental de modèles architecturaux." Thesis, Paris, ENST, 2012. http://www.theses.fr/2012ENST0036/document.
Full textThe increasing complexity of distributed realtime and embedded (DRE) systems and their implication in various domains imply new design and development methods. In safety- criticial domains such as space, aeronautical, transport or medicine, their failure could result in the failure of the mission, or in dramatic damages such as human losses. This particular class of systems comes with strong requirements to satisfy safety, reliability and security properties. The Model-driven Engineering (MDE) introduces the concept of «model» - an abstract description of the system and a set of tools (editor, transformation engine, code generator) to simplify and automatize the design, the validation and the implementation of the system. Thus, various abstractions are realized using different domain-specific modeling languages in order to assess one particular aspect of the system and to re-use model-based analysis tools and generative technologies. These various representations may share some commonalities but the consistency between them is hard to validate (for example : Is the analyzed system the same as the generated one ?).This PhD thesis leverages MDE concepts and mechanisms, to enhance the reliability of the model-based development process of DRE systems. Our approach is based on the definition of the architectural and behavioral modeling language AADLHI Ravenscar, a restriction of AADL (Architecture Analysis & Design Language) and its behavioral annex. This subset of AADL constructs, comes up with a semantic close to the one of an imperative programming language, to drive both the analysis and the code generation of the application components and its relying execution platform (middleware) components
Guetmi, Nadir. "Modèles de conception pour des applications collaboratives dans le cloud." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2016. http://www.theses.fr/2016ESMA0016/document.
Full textNowadays we assist to an enormous progress of mobile collaborative applications. These applications take advantage of the increasing availability of communication networks and the impressive evolution of mobile devices. However, even with a developing acceleration, they are still poor in resources (short life of batteries andunstable network connections) and less secure. In the context of our work, we propose a new approach based on the deployment of mobile collaboration tasks to the cloud. The management of efficient virtualization ensuring continuity of collaboration in peer-to-peer networks is a very difficult task. Indeed, the dynamic aspect of the groups (where users can join, leave or change groups) and a vulnerability to failures can affect the collaboration.In addition, the design of such applications must consider the heterogeneity of cloud and mobile environments.Unlike existing works, we propose a reusable high-level architecture based on patterns design, which can be easily adapted to heterogeneous clouds and mobile environments. Our models have been used as basis for the design of:(i) MidBox, a virtual platform for running mobile collaborative applications on a private cloud and (ii) MobiRDFa decentralized cloud service for real-time manipulation of knowledge via shared RDF documents
Ahmed, Ahmed. "Utilisation de l'ingénierie dirigée par les modèles pour l'agrégation continue de données hétérogènes : application à la supervision de réseaux de gaz." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0049/document.
Full textOver the last decade, the information technology and industrial infrastructures have evolved from containing monolithic systems to heterogeneous, autonomous, and widely distributed systems. Most systems cannot coexist while completely isolated and need to share their data in order to increase business productivity. In fact, we are moving towards larger complex systems where millions of systems and applications need to be integrated. Thus, the requirement of an inexpensive and fast interoperability solution becomes an essential need. The existing solutions today impose standards or middleware to handle this issue. However, these solutions are not sufficient and often require specific ad-hoc developments. Thus, this work proposes the study and the development of a generic, modular, agnostic and extensible interoperability architecture based on modeling principles and software engineering aspects. It aims to promote interoperability and data exchange between heterogeneous systems in real time without requiring systems to comply with specific standards or technologies. The industrial use cases for this work takes place in the context of the French gas distribution network. The theoretical and empirical validation of our proposal corroborates assumptions that the interoperability between heterogeneous systems can be achieved by using the aspects of separation of concerns and model-driven engineering. The cost and time to promote the interoperability are also reduced by promoting the characteristics of re-usability and extensibility
Maugé, Loranne. "Le modèle cellulaire THP-1 : adaptation à l'étude de modulateurs de l'activité inflammatoire précoce implicant l'inflammasome." Phd thesis, Université de Bourgogne, 2013. http://tel.archives-ouvertes.fr/tel-00995419.
Full textChitic, Stefan-Gabriel. "Middleware and programming models for multi-robot systems." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI018/document.
Full textDespite many years of work in robotics, there is still a lack of established software architecture and middleware for multi-robot systems. A robotic middleware should be designed to abstract the low-level hardware architecture, facilitate communication and integration of new software. This PhD thesis is focusing on middleware for multi-robot system and how we can improve existing frameworks for fleet purposes by adding multi-robot coordination services, development and massive deployment tools. We expect robots to be increasingly useful as they can take advantage of data pushed from other external devices in their decision making instead of just reacting to their local environment (sensors, cooperating robots in a fleet, etc). This thesis first evaluates one of the most recent middleware for mobile robot(s), Robot operating system (ROS) and continues with a state of the art about the commonly used middlewares in robotics. Based on the conclusions, we propose an original contribution in the multi-robot context, called SDfR (Service discovery for Robots), a service discovery mechanism for Robots. The main goal is to propose a mechanism that allows highly mobile robots to keep track of the reachable peers inside a fleet while using an ad-hoc infrastructure. Another objective is to propose a network configuration negotiation protocol. Due to the mobility of robots, classical peer to peer network configuration techniques are not suitable. SDfR is a highly dynamic, adaptive and scalable protocol adapted from Simple Service Discovery Protocol (SSDP). We conduced a set of experiments, using a fleet of Turtlebot robots, to measure and show that the overhead of SDfR is limited. The last part of the thesis focuses on programming model based on timed automata. This type of programming has the benefits of having a model that can be verified and simulated before deploying the application on real robots. In order to enrich and facilitate the development of robotic applications, a new programming model based on timed automata state machines is proposed, called ROSMDB (Robot Operating system Model Driven Behaviour). It provides model checking at development phase and at runtime. This contribution is composed of several components: a graphical interface to create models based on timed automata, an integrated model checker based on UPPAAL and a code skeleton generator. Moreover, a ROS specific framework is proposed to verify the correctness of the execution of the models and to trigger alerts. Finally, we conduct two experiments: one with a fleet of Parrot drones and second with Turtlebots in order to illustrates the proposed model and its ability to check properties
Tu, Ly. "Innovation thérapeutique dans la dysfonction endothéliale associée à l'hypertension artérielle pulmonaire." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA114823/document.
Full textPulmonary arterial hypertension (PAH) is a severe disease characterized by progressive obstruction of small pulmonary arteries, leading to a progressive increase in pulmonary vascular resistance and to right heart failure and death. Vasoconstriction, pulmonary vascular remodeling, in situ thrombosis and endothelial dysfunction are all factors that contribute to the development and progression of the disease. These work aimed to clarify and better understand the abnormal phenotype of the pulmonary endothelial cell (P-EC) of PAH patients to identify new therapeutic targets to correct and restore the endothelial dysfunction associated with pulmonary hypertension. Several functional disturbances related to molecular abnormalities have been identified. The IPAH-P-EC is characterized by proliferation, migration, survival and an excessive response to various growth factors: PDGF, EGF, and FGF2. Among the molecular abnormalities responsible for these functional disturbances, we found an abnormal production and release of FGF2, MMP2, MIF, IL-6 and MCP-1, but also a constitutive activity of MAPK, overexpression of anti-apoptotic factors BCL2 and BCL-xL, of FGFR2, of p130Cas and CD74. This better understanding of the EC-IPAH has already identified several targets that could be evaluated and also helped raise a number of issues requiring further study
Zhang, Ying. "Modèles et outils pour des bases lexicales "métier" multilingues et contributives de grande taille, utilisables tant en traduction automatique et automatisée que pour des services dictionnairiques variés." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAM017/document.
Full textOur research is in computational lexicography, and concerns not only the computer support to lexical resources useful for MT (machine translation) and MAHT (Machine Aided Human Translation), but also the linguistic architecture of lexical databases supporting these resources in an operational context (CIFRE thesis with L&M).We begin with a study of the evolution of ideas in this area, since the computerization of classical dictionaries to platforms for building up true "lexical databases" such as JIBIKI-1 [Mangeot, M. et al., 2003 ; Sérasset, G., 2004] and JIBIKI-2 [Zhang, Y. et al., 2014]. The starting point was the PIVAX-1 system [Nguyen, H.-T. et al., 2007 ; Nguyen, H. T. & Boitet, C., 2009] designed for lexical bases for heterogeneous MT systems with a lexical pivot, able to support multiple volumes in each "lexical space", be it natural or artificial (as UNL). Considering the industrial context, we focused our research on some issues, in informatics and lexicography.To scale up, and to add some new features enabled by JIBIKI-2, such as the "rich links", we have transformed PIVAX-1 into PIVAX-2, and reactivated the GBDLEX-UW++ project that started during the ANR TRAOUIERO project, by re-importing all (multilingual) data supported by PIVAX-1, and making them available on an open server.Hence a need for L&M for acronyms, we expanded the "macrostructure" of PIVAX incorporating volumes of "prolexemes" as in PROLEXBASE [Tran, M. & Maurel, D., 2006]. We also show how to extend it to meet new needs such as those of the INNOVALANGUES project. Finally, we have created a "lemmatisation middleware", LEXTOH, which allows calling several morphological analyzers or lemmatizers and then to merge and filter their results. Combined with a new dictionary creation tool, CREATDICO, LEXTOH allows to build on the fly a "mini-dictionary" corresponding to a sentence or a paragraph of a text being "post-edited" online under IMAG/SECTRA, which performs the lexical proactive support functionality foreseen in [Huynh, C.-P., 2010]. It could also be used to create parallel corpora with the aim to build MOSES-based "factored MT systems"
Liu, Hui. "Intégration des approches ontologiques et d'ingénierie dirigée par les modèles pour la résolution de problèmes d'interopérabilité." Phd thesis, Ecole Centrale de Lille, 2011. http://tel.archives-ouvertes.fr/tel-00662511.
Full textFilippi, Jessica. "Droit pénal des mineurs et justice restaurative. Approche comparée franco-belge." Thesis, Pau, 2015. http://www.theses.fr/2015PAUU2004.
Full textThis research focuses on the juvenile criminal law and restorative justice in a comparative approach between France and Belgium. Beyond revealing the similarities and differences of these countries in these fields, the research also carters to the difficulties encountered by France and Belgium in the acceptance of restorative justice in juvenile criminal law and its development in the judicial institutions. By studying the reasons that led France to miss the “turning” of restorative justice and those enabled, in Belgium enabled, the implementation of restorative justice in the criminal law for minors, anchor points have been identified for its development in the order of 2 February 1945. Subsequently, an experiment in youth justice service on the reparation measures was led considering difficulties which concern the service itself (actuarial logic, supervisory, financial, professional ideologies and fears). Our analysis of practices in the youth justice services on the reparation measures, reveals that the experimentation of restorative justice is limited by a managerial rationality treatment of juvenile criminal phenomenon. Also, some of the minor approaches and their implementation in the measure facilitate (psycho-criminological approach to acting out part and a psycho-socio-educational dimension in reparation) or inhibit (criminological approach to act itself and a retributive dimension in reparation) restorative justice programs. However, even if the practice facilitates experimentation and that educators apply “direct reparation”, ideological barriers remain in dealing with victims. However, it remains essential to underline that, thanks to the presentation of the principles and promises of restorative justice educators met, the identified pitfalls fall, mainly with the presence of the victim during the implementation of “direct reparation”. Such a development professional postures omen a harmonious integration of next restorative justice approaches in juvenile criminal law
Zahedi, Mithra. "Modèle novateur de conception d’interface humain-ordinateur centrée sur l’utilisateur : le designer en tant que médiateur." Thèse, 2011. http://hdl.handle.net/1866/5969.
Full textIn complex design projects, problems typically arise when the design process is undertaken by multi-disciplinary groups of experts as well as non-experts because they do not share a common vision about the user’s needs, do not have identical goals related to the task, and do not have a common language to have productive dialogues as the design process progresses. This research addressed issues related to the human-centered design approach within the context of human-computer interfaces (HCI). It explored ways in which a designer can create conditions whereby various contributors involved in the design process can benefit from the potential that the multi-disciplinary context afford to enrich their personal knowledge and reflection and at the same time work efficiently and collaboratively to design an interface that is user centered. The research used a mixed methodology. In the first instance, a project-grounded research (research through design) was used in three successive case studies with increasing degrees of intervention and control by the researcher. Project-grounded research involves the development of knowledge and theory related to the design activity in an authentic design project. The focus of the first case was for the designer/researcher to observe her role and interaction with others during the design process. In the second case, the focus shifted to the collaborative interactions. The design process was used as a method to foster consensus building and the adoption of a common language to communicate and mutual goals to aim for. Limitations identified in these two cases led to the design of an intervention that was implemented in the third case. This intervention comprised an intensive workshop whereby team members engaged in an interdisciplinary attitude building exercise leading to joint-reflective practice toward achieving the goal which was to create a website. Data generated from these three cases informed the development of a theoretical model that represents steps of “optimal” collaborative design process, focusing on user-centeredness. In this model, the designer is attributed the additional and central role of mediator (designer as mediator) that facilitates the convergence of disparate foci and ways of thinking. In the second instance, the model was presented to three design experts individually for validation purposes. Interview data collected from this process affirmed the validity of the concepts and relations depicted in the model as well as its transferability potential to other complex contexts. The proposed model has the promise of structuring design activities to unfold in a more efficient and timely manner while being sustainable.
Saint-Pierre, Chantal. "Élaboration et vérification d'un modèle prédictif de l'adaptation aux rôles associés de mère et de travailleuse à statut précaire." Thèse, 2002. http://hdl.handle.net/1866/14395.
Full textLamaute, Dominique. "Le lien entre la stratégie d'affaires et la participation syndicale dans le secteur privé au Québec : le rôle médiateur de la satisfaction au travail." Thèse, 2008. http://hdl.handle.net/1866/3180.
Full textGuérin, Marie-Claude. "Éclaircissement de l’association entre la relation enseignant-élève, le partenariat mère-enfant, et l’adaptation scolaire auprès d’une clientèle à risque." Thèse, 2015. http://hdl.handle.net/1866/11908.
Full textMousset, Francois. "Electro-volatilisation du ruthénium en milieu nitrique. - Influences de la nature des formes chimiques du ruthénium et de la composition des solutions modèles de dissolution." Phd thesis, 2004. http://pastel.archives-ouvertes.fr/pastel-00002223.
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