Tesis sobre el tema "Central charges"
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Zhang, Wei. "Rational vertex operator algebras with small central charges and generators /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2008. http://uclibs.org/PID/11984.
Texto completoFonda, Piermarco. "Aspects of holographic entanglement entropy: shape dependence and hyperscaling violating backgrounds". Doctoral thesis, SISSA, 2015. http://hdl.handle.net/20.500.11767/4860.
Texto completoCussans, David George. "The optimization of the FADC readout system for the Zeus central tracking detector". Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335649.
Texto completoJésus, Pierre. "Impact de l’état et de la prise en charge nutritionnels dans les maladies neurodégénératives : Approche neuroépidémiologique". Thesis, Limoges, 2014. http://www.theses.fr/2014LIMO0071/document.
Texto completoNeurodegenerative diseases (NDD) mainly concern neuromuscular diseases, including amyotrophic lateral sclerosis (ALS), dementia, including Alzheimer's disease, Parkinson's disease, multiple sclerosis, Huntington's disease. Due to the multiplicity of factors inducing a weight loss, the NDD are at risk of malnutrition, which can alter the evolution of these diseases and the quality of life of patients. The purpose of this work was to assess the nutritional status and / or the effect of treatment of patients with ALS and cognitive disorders (dementia and / or mild cognitive impairment [MCI]) in France with a health network, but also in Central Africa. The health network Limousin Nutrition (LINUT) realizes assessments and nutritional interventions in ALS patients at home and in residents of nursing homes (NH). The first evaluation by the network of ALS patients found more swallowing disorders than specialized consultation (60.0% vs. 47.5%) and taste disorders (43.8%), not further described in ALS. Improvements of practices were proposed. The network assessed also residents in NH, with or without dementia, initially and after a 4 months follow-up. Malnutrition affected more often demented patients (56.1% vs. 46.4% p=0.004), and energy intakes of all residents (26.4 ± 8.8 kcal/kg/d) were below the recommendations. The network intervention improved the nutritional status of patients with dementia (+0.29 ± 0.07 point of MNA®/month, p=0.003) and energy intake of all residents at 4 months. Two studies named
Cohen, Salomon Yves. "Adaptation au scotome central". Paris 6, 2003. http://www.theses.fr/2003PA066063.
Texto completoMayol, Séverine. "Devenir un bon pauvre : Analyse genrée de la prise en charge des personnes sans domicile". Thesis, Paris 5, 2012. http://www.theses.fr/2012PA05H015.
Texto completoYeh, Hung-Yu [Verfasser]. "Period, Central Charge and Effective Action on Ricci-Flat Manifolds with Special Holonomy / Hung-Yu Yeh". Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1139048961/34.
Texto completoMohamed, Samantha Ann. "The feasibility of a congestion charge for Cape Town central business district from a traffic engineering perspective". Thesis, Cape Peninsula University of Technology, 2008. http://hdl.handle.net/20.500.11838/1036.
Texto completoThere is an ever increasing need to introduce travel demand measures as the ability to construct new and upgrade existing roads to accommodate additional traffic volumes decreases. The City of Cape Town, hereinafter referred to as the City, has forecasted that traffic in the city could continue to increase by two and a half percent per year. To mitigate against the increased traffic volumes, the City is proposing a number of travel demand strategies, including a park and-ride facilities and high occupancy vehicle initiatives in the short term. The City’s draft travel demand management strategy identifies congestion charging as a measure more possible implementation in the medium term. This study investigates the feasibility of introducing a congestion charge from a traffic engineering perspective. This entails determining if there could be a reduction in traffic entering the Central Business District, what type of congestion charge is most suited for Cape Town and what type of technology is most appropriate at this point in time. In determining the type of charge and technology for introduction in Cape Town, international experience and trials were drawn upon in terms of case studies and research completed. These included developed and developing cities that had either introduced a congestion charge or considered it. To determine the potential level of traffic reduction, transportation elasticities for road pricing/congestion charging were used. This method of calculating the traffic reduction has been used on similar studies and provides a reasonable indication of the potential percentage reduction which could be achieved. The elasticities were based on post-implementation studies undertaken in cities which had introduced a congestion charge or road user pricing. For this study, elasticities between -0.1 and -0.5 were used. The study found that of the types of congestion charging available, a simple cordon charge, around the central business district (CBD) was most feasible. A cordon area would be more appropriate due to the small charge area involved, the flexibility that it allows and because it does not need to be visually intrusive in terms of roadside and enforcement equipment. The location of the cordon area also allows the key roads around the CBD to become the bypass route for vehicles that currently pass through the area. In terms of the charge payment system, it was found that presently, a manual payment system would be more appropriate for the city than a tag and beacon system.
Mohamed, Samatha Ann. "The feasibility of a congestion charge for Cape Town central business district from a traffic engineering perspective /". [S.l. : s.n.], 2008. http://dk.cput.ac.za/cgi/viewcontent.cgi?article=1068&context=td_cput.
Texto completoKiss, Gábor Annamária. "Formulation géométrique des théories de supergravité N=4 et N=8 en superespace avec charges centrales". Aix-Marseille 2, 2000. http://www.theses.fr/2000AIX22095.
Texto completoDussault, Caroline. "Influence de la charge de travail liée au pilotage sur le système nerveux central : étude des variations électrophysiologiques". Paris 5, 2005. http://www.theses.fr/2005PA05S032.
Texto completoIn aeronautics, mental and physical workload as well seem to have a major negative influence on performance. Regarding neurophysiological considerations, the above-mentioned elements could impaired some functions of the central nervous system. The studies show that modifications of the power spectrum in the EEG frequency bands could be relevant indexes of the mental workload during a real or a simulated flight. θ, β and γ frequency bands seem to be the most impaired by this modifications. The results show that workload produced modifications of heart rate during flight. Finally, the influence of workload on the autonomous nervous system could be demonstrated, using a spectral analysis of the heart rate variability and the analyse of the spontaneous baroréflexe sensitivity. Results show an impairment of the ortho-parasympathetic balance. These methods could be included in a protocol of aeronautical medicine including the assessment of the mental and physical capacities of the pilots
Terriac, Emmanuel. "Train de films liquides confinés : structure et écoulement". Rennes 1, 2007. http://www.theses.fr/2007REN1S099.
Texto completoLiquid film trains are the most encountered structures of confined liquid foams. The presented work is a part of the understanding of liquid distribution in “bamboo” foams defined by a film train. An original method to measure film thickness within the foam by small angle scattering experiments, interpreted in the frame of specular reflectivity, was validated by using a well-known surfactant (SDS). The results, compared to other ones obtained with Thin Film Balance, lead to the conclusion that “bamboo” foams are assemblies of independent films and that metastable states of film can be isolated. Measurements of the viscous force of “bamboo” foams flowing in narrow channels are also presented and compared to a model based on the lubrication theory. It follows from it a strong influence of the velocity, the liquid fraction and the bubble size on the viscous dissipation
Genêt, François. "Stratégies de prise en charge des paraostéoarthropathies (POA) après lésion du système nerveux central : problématique de la récidive postopératoire". Versailles-St Quentin en Yvelines, 2011. http://www.theses.fr/2011VERS0019.
Texto completoHeterotopic ossification (HO) is a painful and disabling bone complication, occurring after central nervous system (CNS) damage. The etiopathogeny is poorly understood and the only radical treatment is surgery. The question of the indication for surgery remains debated. Epidemiological analysis of a historical database comprising a series of 357 consecutive adult patients with a CNS lesion and suffering from an HO with surgical indication (570 surgeries) was used to assess perceptions about the issue of postoperative recurrence. Early surgery does not appear to be a factor in recurrence (Genet, PLoS ONE, 2011). A too late surgery exposes the risk of postoperative complications (Genet, JBJS Br, 2009). The importance of neurological sequelae (Genet JHTR, submitted) and the extension around the joint of the HO before surgery (Genet, PLoS ONE, submitted) do not seem to be predictors of recurrence
Attali, Valérie. "Stabilité des voies aériennes supérieures et intégration centrale". Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066450.
Texto completoThe obstructive sleep apnoea syndrome (OSAS) involves recurrent sleep-related upper airways (UA) collapse. UA mechanical properties and neural control are altered imposing a mechanical load on inspiration. UA collapse does not occur during wakefulness, hence arousal-dependent compensation. Three studies in healthy and apnoeic patients allowed characterizing it. From upper-airway pressure-flow relationships, the first study described local compensation mechanisms, before and after a neurovegetative modulation based on ptérygopalatin node compression. The second study showed a respiratory-related cortical activity that could contribute to the increased neural drive to upper airway and to inspiratory muscles that has previously been described in OSAS, and could therefore contribute to the arousal-dependent compensation of upper airway abnormalities. The third study showed a sensory gating-out process of breathing sensations in OSAS that could be reversed by mandibular advancement device, allowing linking upper-airway stability improvement to central integration of respiratory sensations. Finally, upper-airway pressure-flow relationship was approached by two models
Raliarivony, Fara Lancha Catherine. "Elaboration d'un plan de cotation des collections en libre accès de la bibliothèque universitaire centrale de Lille 3 (Lettres, arts et sciences humaines)". [S.l.] : [s.n.], 2004. http://www.enssib.fr/bibliotheque/documents/ppp/pppraliarivony.pdf.
Texto completoMartin, Cabañas Bruna. "Comportement des produits de corrosion dans le circuit primaire des centrales REP : sorption du cobalt et du nickel sur des ferrites représentatifs". Paris 11, 2010. http://www.theses.fr/2010PA112245.
Texto completoThe corrosion of the metal parts in the primary circuit of PWR Ieads to the release of metal oxides particles and ionic species. These corrosion products circulate through the primary circuit and may be activated when they pass through the core. The deposition of the activated particles in areas out of flux is then responsible for surface contamination. These particles can also interact with thc ionic species in the primary medium, contributing to their transport and to their deposition on surfaces outside the flux. Ln order to have better contamination control, characterization (specific surface, sire, PZC. . . ) of differents particles of primary circuit and study of their interaction with soluble species and surfaces (adhesion, sorption. . . ) is necessary. Species take into account in this study are for particles : nickel and cobalt ferrites and magnetite, for primary circuit materials: Inconel 690, Zircaloy 4 and stainless steel 304L. Cobalt and nickel sorption, main responsible of primary circuit contamination, on several corrosion products were experimentally realized and modelised with ECOSAT code. Surface charge were also studied. Data obtained will be introduced in different calculation code in order to modelised contamination in primary circuit under dynamics conditions
Nizard, Julien. "Prise en charge interdisciplinaire médico-chirurgicale du patient douloureux chronique réfractaire : place des techniques de neurostimulation invasives et non invasives et de programmes hospitaliers séquentiels". Nantes, 2012. http://archive.bu.univ-nantes.fr/pollux/show.action?id=8a82c2ff-e4bb-4e60-b5f5-7457382d37e3.
Texto completoTreatment of patients with severe chronic pain is a public health issue, with increasing direct medical costs and significant indirect costs generated by the diseases involved. Multidisciplinary treatment, relying both on evidence-based medicine and on treatment personalisation and stratification adapted to the degree of disability and social and occupational exclusion, is necessary, though as yet insufficiently proposed. Indeed, despite the progressive availability of professional guidelines, their implementation remains heterogeneous and inadequately standardised. This thesis presents a range of studies aimed at improving the management of patients presenting with refractory pain and severe disability. Our work suggests that non-invasive cortical neurostimulation techniques (transcranial magnetic stimulation), or even invasive techniques, may be relevant to concerted multidisciplinary medical-surgical care, enabling better selection of potentially responsive patients. New indications, such as pelvic and perineal pain, having sometimes a major impact on patients' quality of life, may benefit from such techniques. The implementation of treatment programmes, combining complementary care, such as a Multidisciplinary Pain Centre and a Rehabilitation Centre, could improve the return to work and quality of life of these patients, still legitimately awaiting care despite the failure of numerous previous treatments. Such results need to be confirmed by randomised controlled trials conducted at a larger scale
Fouchier, Capucine de. "Évaluation d'un protocole psychothérapeutique associant la psychoéducation, la relaxation et l'EMDR dans la prise en charge des réfugiés victimes de torture d'Afrique centrale et de l'Ouest". Paris 8, 2013. http://octaviana.fr/document/182058379#?c=0&m=0&s=0&cv=0.
Texto completoThe aims of this research are to provide information on the psychopathological specificities of refugees torture survivors from Central and West Africa and to assess the therapeutic efficiency of a 10 session protocol associating psychoeducation, relaxation technique and EMDR while comparing its effect when applied in weekly or intensive treatment modality. To achieve these goals, 52 participants were allocated in three treatment conditions: “EMDR”, “Stabilization” and “Intent to treat with medication” and were assessed at the beginning, at the end and 4,5 months after the end of psychotherapy. Our results show that Post-Traumatic Stress Disorder (PTSD) is the most frequent pathology and that accommodation and the asylum claim situation in the host country are the social variables with the most influencing impact on psychopathology. The “EMDR” protocol shows a large and superior therapeutic efficiency in comparison with the control groups for all the variables that were considered pathological during the initial assessment (ηp2 entre. 41 et. 96). Also, the intensive treatment modality increases the therapeutic efficiency for PTSD, depression, anxiety and functioning (ηp2 entre. 87 et. 93). In conclusion, this research shows this importance to ask patients about their social and migration situation in the host country and demonstrates that associating EMDR with psychoeducation and relaxation techniques is a relevant and efficient psychotherapeutic protocol in the psychological rehabilitation of this population, especially when it is applied in a intensive way
Kette, Justin-Sylvestre. "La subsistance du clergé séculier en Centrafrique : possible auto-prise en charge". Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAK016.
Texto completoAlthough the Code of Canon Law provides at canon 281 the remuneration of clerics and their social assistance in case of sickness, invalidity or old age, this provision is far from being properly applied to the secular priests of Central Africa. In addition to structural poverty, the country is in the throes of a civil war that has destroyed the entire socio-economic fabric. But war does not justify everything. There is a problem of management and administration of ecclesiastical goods. The rigorous and transparent management of the meager financial resources available to the Church remains a major challenge. While it is true that clergy subsistence is the responsibility of the Church, priests also have an important part to play. Our thesis proposes the steps to be taken to make possible the self-reliance of the priests in the Central African Republic
Mercadier, Chauvigny de Blot Edwige Meas Yunsan. "Intérêt de la quantification de la consommation de médicaments dans la prise en charge globale du patient douloureux chronique". [S.l.] : [s.n.], 2007. http://castore.univ-nantes.fr/castore/GetOAIRef?idDoc=24161.
Texto completoBahwere, Paluku. "Contribution à l'amélioration et à l'évaluation de la prise en charge globale de l'enfant hospitalisé en Afrique Centrale (Sud Kivu)". Doctoral thesis, Universite Libre de Bruxelles, 2002. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211425.
Texto completoHollecker, Eric Leone Marc. "Intérêt du monitorage de la saturation veineuse centrale en oxygène dans la prise en charge du choc septique en réanimation". [S.l.] : [s.n.], 2006. http://theses.univ-nantes.fr/thesemed/SPEhollecker.pdf.
Texto completoKonko, Iuliia. "Aqueous solutions of complexes formed by model polyelectrolytes of opposite charges". Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAE049/document.
Texto completoThis PhD thesis presents a study of the aqueous solutions of three model polyelectrolyte complexes (PECs). PECs were formed between hydrophilic and highly charged linear macrocations of poly(diallyldimethyl ammonium) (PDADMA) and linear macroanions of distinct intrinsic persistence lengths: sulfonated polystyrene (PSS), sulfonated poly(α-methyl styrene) (PαMSS) and hyaluronate (HA). In addition to the effect of the macroion stiffness on the PEC formation and structure, those of the ionic strength and the way of preparing the PEC aqueous solutions as well as that of the concentration regimes of the initial PE aqueous solutions were also tackled. We suggest the complexation between macrocations and macroanions in the semidilute and concentrated regimes can be described as a universal gelation process. A difference between PDADMA-PSS and PDADMA-HA complexes is related to the primary self-assembling process and is associated with the distinct structural models for PECs
Cheap, Hélène. "Etudes des transferts de charges dans les centres réactionnels de la bactérie pourpre rhodobacter sphaeroides par spectroscopie de changement d'absorption et électrochimie". Paris 11, 2007. http://www.theses.fr/2007PA112158.
Texto completoThe reaction centers from the Rhodobacter sphaeroides bacterium are redox membrane proteins that convert light energy into chemical free energy. Absorption of a photon triggers a series of electron transfer reactions coupled to proton uptake between the prosthetic groups and cofactors within the protein. One of the most important electron transfer reactions involves two quinones (QA and QB), one non-heme iron atom and the protein environment of this metal. We have shown by flash-induced absorbance change spectroscopy the influence of some of the iron ligands (M266H and M234E) on the energetic stabilisation of the quinone system. Indeed, the replacement of histidine M266 by a leucine destabilises the free energy level of QA- by about 40 meV, whereas the replacement of glutamic acid M234 by either a histidine or a leucine destabilises both the QA- and the QB- free energy levels by nearly 70 meV. The study of variants carrying mutations in the vicinity (5 Å, L213D) or further away (15 Å, L218D) from QB suggests that proton uptake and transfer to QB involve an extended hydrogen bond network delocalised over the cytoplasmic side of the protein. Our results support the hypothesis of the existence of non-specific proton delivery pathways at the molecular level. Finally, in order to determine the redox potential of the prosthetic groups and cofactors of the reaction centers, they were studied by cyclic voltammetry. The proteins were immobilized in a methyl cellulose film on the surface of a pyrolitic graphite electrode, a method which has never been tried before with this system. Reduction potential for QA and QB were estimated at −0,156 and −0,079 V/NHE at pH 8 respectively
Zerbo, Roger. "Dynamiques sociales des comportements de santé au Burkina Faso: approche anthropologique de la prise en charge de la tuberculose dans la région du plateau central". Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209842.
Texto completoDoctorat en Sciences politiques et sociales
info:eu-repo/semantics/nonPublished
Grajcarek, Robert [Verfasser] y Kai [Akademischer Betreuer] Schweda. "Anisotropic flow of the charmed D*+ meson in non-central Pb-Pb collisions at sqrtsNN = 2.76 TeV / Robert Grajcarek ; Betreuer: Kai Schweda". Heidelberg : Universitätsbibliothek Heidelberg, 2013. http://d-nb.info/1177248956/34.
Texto completoJadhav, Rajratna Uttamrao. "Eastern regionalism and Indian identity : a case study of Charles Correa's 'Inter-university center for astronomy and astrophysics' & Raj Rewal's Central Institute of Educational Technology". Kansas State University, 1998. http://hdl.handle.net/2097/36121.
Texto completoDuberga, Virginie. "Prise en charge administrative et rééducative des enfants et adolescents sourds par les organismes médico-socio-éducatifs". Bordeaux 2, 1990. http://www.theses.fr/1990BOR25197.
Texto completoJABRE, MARIE-HELENE. "Les troubles de la deglutition d'origine centrale chez le jeune enfant : prise en charge dans le cadre d'un centre d'action medico-sociale precoce". Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX20052.
Texto completoLorchat, Philippe. "Structure des solutions aqueuses de polyélectrolytes fortement chargés". Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00759325.
Texto completoHimschoot, Brian. "Making the Decision: Factors that Affect the Information Available to Parents with Young Children about Charter Schools in Central Florida". Honors in the Major Thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/953.
Texto completoB.S.
Bachelors
Education and Human Performance
Teaching, Learning and Leadership
El, Hajj-Siblini Loubna. "Réduction de la charge bactérienne des concentrés de globules rouges contaminés artificiellement, par action conjointe de la température de stockage avant fractionnement et de la leucofiltration : à propos d'une étude européenne de 1068 anorexiques ou boulimiques". Saint-Etienne, 2005. http://www.theses.fr/2005STET006T.
Texto completoMaiga, Youssoufa Mamoudou. "Représentation socio-culturelle de la douleur au Mali : étude des réseaux de prise charge et développement d'un modèle type de centre de la douleur adapté aux réalités locales". Thesis, Nantes, 2021. http://www.theses.fr/2021NANT1005.
Texto completoSub-Saharan Africa (SSA) is facing complex health problems involving a broad range of sociopolitical, economic, systemic, and cultural factors. In this context, the specificities and the difficulties of treating pain in sub-Saharan Africa are multiple (systemic and sociocultural). Furthermore, at the anthropological and medical levels, the clinical models and the explanatory models of pain are not identical to those of Western societies. The systems of representation of disease in certain African communities assert that pathological “states” are not only due to natural causes but that they can also be triggered by occult forces. Treatment of disease then becomes bidirectional by, firstly addressing the physical disorder with plants, and then by reestablishing the balance of life forces by prayers and rites. In light of the burden of pain at the individual and the community level, with this approach, there is a need to consider a range of care to treat pain tailored to the local realities. Whence our research topic, namely, what are the systems of representation and traditional practices for treating pain in Mali? What might the impacts be on the implementation of a center to monitor pain in Mali? The objective of this work was to study the Malian systems of representation and the sociocultural determinants of pain, so as to, on the one hand, contextualize the clinical models and, on the other hand, to devise a customized model of a pain center. The ultimate aim of this work was to make effective care, tailored to the sociocultural realities, available to the community (neurologists, politicians, researchers, patients, and traditional therapists) in order to reduce the burden of neurological pathologies in SSA. In this work, we have confirmed the prevalence of pain, and particularly neuropathic pain, in our practice. This work has also allowed us to appreciate the key role of traditional medicine in the provision of care. We call on researchers and policy decision-makers to find new strategies aimed at improvement of the treatment of pain by the implementation of novel programs geared toward promoting collaboration between traditional medicine and conventional medicine
Chelem, Mayigué Charles [Verfasser], Laemmerzahl [Akademischer Betreuer] Claus, Laemmerzahl [Gutachter] Claus y Braxmaier [Gutachter] Claus. "Numerical investigation of MPD thrusters using a density-based method with semi-discrete central-upwind schemes for MHD equations / Charles Chelem Mayigué ; Gutachter: Laemmerzahl Claus, Braxmaier Claus ; Betreuer: Laemmerzahl Claus". Bremen : Staats- und Universitätsbibliothek Bremen, 2018. http://d-nb.info/1167925750/34.
Texto completoCavata, Christian. "Production de pions chargés dans les collisions noyau-noyau à des énergies comprises entre 400 et 800 Mev par nucléon". Paris 11, 1989. http://www.theses.fr/1989PA112271.
Texto completoThis thesis is devoted to the experimental study of pion production in relativistic heavy ions collisions. The first two chapters introduce the basic concepts and offer a review of the currently used theoretical models. The data presented were taken at the SATURNE accelerator with the DIOGENE detector (chapter III). The last part is totally devoted to our results. The data analysis is described, with an emphasis on the impact parameter selection. The pion multiplicity is systematically studied as concerns its various aspects and implications. The impact parameter, bearn energy and system size dependence are presented and compared with the results of intranuclear cascade calculation. The possibility of determining the nuclear equation of state from this comparison is discussed. The pion multiplicity distribution is consistent with a Poisson law which rules out any coherent pion production mechanism. The double differential cross-sections are then presented for large and small impact parameters. The question of pion origin in heavy ion collisions is discussed by tagging the one nucleus-nucleus inelastic collision process and the delta resonance contribution. Finally, a systematic study of pion flow is given along with a possible explanation by pion absorption in nuclear matter
Quin, Wayne Anthony. "A Comparison of the Perceptions of School Work Culture by Administrators and Faculty in the Public Charter and Non-Charter Elementary Schools of a Central Florida County". Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4392.
Texto completoDong, Shuping. "Effects of acid hydrolysis conditions on cellulose nanocrystal yield and properties: A response surface methodology study". Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/78102.
Texto completoMaster of Science
Martin, Cabanas Bruna. "Comportement des produits de corrosion dans le circuit primaire des centrales REP - sorption du cobalt et du nickel sur des ferrites représentatifs". Phd thesis, Université Paris Sud - Paris XI, 2010. http://tel.archives-ouvertes.fr/tel-00595061.
Texto completoJamet, Ludovic. "Le mineur et ses dossiers judiciaires : étude sur le traitement institutionnel de la délinquance juvénile et les vicissitudes de sa prise en charge". Rouen, 2009. http://www.theses.fr/2009ROUEL008.
Texto completoLê, Thi Thu Hang. "Exploration des facteurs relationnels propres aux médecins qui influencent sur la prise en charge du patient douloureux chronique". Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10640.
Texto completoAbstract : Background: Chronic pain is difficult, both for the patient and the caregiver. Even though many studies and researches have been conducted (mostly with patients), chronic pain remains. It is suggested that a person-centered approach is the best way to help these patients. However, little is known about how physicians adapt their practice to their powerlessness when faced with chronic pain patient. Which strategies are to be used when the pharmacopoeia is insufficient? Though it is known that religious and spiritual commitments may allow patients to give meaning to their pain, little is known about how physicians deal with these commitments. Purpose: This study explores the factors influencing how physicians take charge of chronic pain patients to understand how their identity, their spirituality and their relationship shape their care approach. Methods: Within a qualitative research design in grounded theory, the conceptual framework developed is based on the two key concepts: the narrative identity by Ricœur and the concept of time by Tillich. Participants were recruited using a convenience sampling. Semi-structured individual interviews were conducted with seven physicians in various specialties dealing with the difficulties of chronic pain management. Four of them were interviewed a second time to further investigate the subjet, until data saturation. The transcripts were analyzed by Strauss and Corbin’s method of codification. Results: If the time factor was theoretically known from the literature on chronic pain, continuous and simultaneous data collecting and analyzing has brought its emergence as concept (axial coding), revealing thereby its implicit crucial importance within the therapeutic relationship. Our approach, inspired from both theological and philosophical anthropology‘s frames, have allowed us to identify “recognition” as an emerging process to explain the flow scheme of the physician’s professional and personal identity when faced with chronic pain. Although not researched explicitly, mutual recognition between patient and physician is a source of motivation to improve the quality of the relationship. The process of recognition to mutual re-co-birth (“re-co-naissance” in French) is proposed here as an explanatory framework for the development of the physician’s identity in the clinical context of chronic pain patient care. The French word “reconnaissance” (recognition) thus can be broken down into “re-co-naissance” (re-co-birth), the co-rebirth of a relationship to define oneself anew as a therapist and to not experience failure. Conclusions: The new acquired confidence and competence between physician and the patient, in addition to actual professional skills, enables the concerned physician not only to enrich his knowledge but also to make progress in time, along with his chronic pain patients, moving from professional identity to spiritual recognition and to a dynamic relationship of mutal re-birth and re-acknowledge (“re-co-naissance”), so that he no longer experiences medical failure. Various perspectives for clinicians and caregivers will be further discussed.
Beauregard, Louise-Anne. "Caractéristiques personnelles des enfants de 9 à 12 ans exposés à la violence conjugale référés à la prise en charge des Centres jeunesse du Québec". Sherbrooke : Université de Sherbrooke, 2003.
Buscar texto completoDesmouceaux, Yoann. "Network-Layer Protocols for Data Center Scalability". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX011/document.
Texto completoWith the development of demand for computing resources, data center architectures are growing both in scale and in complexity.In this context, this thesis takes a step back as compared to traditional network approaches, and shows that providing generic primitives directly within the network layer is a great way to improve efficiency of resource usage, and decrease network traffic and management overhead.Using recently-introduced network architectures, Segment Routing (SR) and Bit-Indexed Explicit Replication (BIER), network layer protocols are designed and analyzed to provide three high-level functions: (1) task mobility, (2) reliable content distribution and (3) load-balancing.First, task mobility is achieved by using SR to provide a zero-loss virtual machine migration service.This then opens the opportunity for studying how to orchestrate task placement and migration while aiming at (i) maximizing the inter-task throughput, while (ii) maximizing the number of newly-placed tasks, but (iii) minimizing the number of tasks to be migrated.Second, reliable content distribution is achieved by using BIER to provide a reliable multicast protocol, in which retransmissions of lost packets are targeted towards the precise set of destinations having missed that packet, thus incurring a minimal traffic overhead.To decrease the load on the source link, this is then extended to enable retransmissions by local peers from the same group, with SR as a helper to find a suitable retransmission candidate.Third, load-balancing is achieved by way of using SR to distribute queries through several application candidates, each of which taking local decisions as to whether to accept those, thus achieving better fairness as compared to centralized approaches.The feasibility of hardware implementation of this approach is investigated, and a solution using covert channels to transparently convey information to the load-balancer is implemented for a state-of-the-art programmable network card.Finally, the possibility of providing autoscaling as a network service is investigated: by letting queries go through a fixed chain of applications using SR, autoscaling is triggered by the last instance, depending on its local state
Sossa, David. "Algèbres de Jordan euclidiennes et problèmes variationels avec contraintes coniques". Thesis, Avignon, 2014. http://www.theses.fr/2014AVIG0412/document.
Texto completoThis thesis deals with four different but interrelated topics: variational problems on Euclidean Jordan algebras, complementarity problems on the space of symmetric matrices, angular analysis between two closed convex cones and the central path for symmetric cone linear programming.In the first part of this work we study the concept of “operator commutation” in Euclidean Jordan algebras by providing a commutation principle for variational problems involving spectral data.Our main concern of the second part is the analysis and numerical resolution of a broad class of complementarity problems on spaces of symmetric matrices. The complementarity conditions are expressed in terms of the Loewner ordering or, more generally, with respect to a dual pair of Loewnerian cones.The third part of this work is an attempt to build a general theory of critical angles for a pair of closed convex cones. The angular analysis for a pair of specially structured cones is also covered. For instance, we work with linear subspaces, polyhedral cones, revolution cones, topheavy cones and cones of matrices.The last part of this work focuses on the convergence and the limiting behavior of the central path in symmetric cone linear programming. This is done by using Jordan-algebra techniques
Al, Ameri Ahmed. "Méthodes analytiques d'étude pour la diminution des pertes de puissance dans les réseaux électriques maillés en utilisant des techniques d'optimisation pour le dimensionnement et l'emplacement des générateurs décentralisés". Thesis, Normandie, 2017. http://www.theses.fr/2017NORMLH06/document.
Texto completoThe research presented in this thesis aims at providing a strategic vision for the integration of distributed generators (DGs) into grid networks. This work focuses the optimal location of the connection point, dimensioning and type of production in order to maximize the benefits of DGs and minimize power losses in the networks. The work also concerns the impact of the variability of the load and the production in the planning and the operational management of the networks. First, algorithms have been developed for power flow studies in power systems using the Schur complement method and the "Run Length Encoding" method. Then, losses were estimated in the calculation of power output by developing a simple, efficient and flexible linear model. Subsequently, decentralized outputs connected to the electrical networks were modeled using a method that merges Kalman filters and graph theory in order to estimate the optimal size of decentralized production. A method which consists of two steps is proposed. In the first step, the graphical method is used to generate the incident matrix to construct the linear model and in the second step a Kalman algorithm is applied to obtain the optimal decentralized production size for each busbar. The challenges of using decentralized production have been addressed to minimize the objective function (real power losses) by taking into account the capacity of the decentralized productions, transmission line capacity and voltage profile constraints. The genetic algorithms and optimization techniques such as the method of interior points have been proposed to determine locally and globally the optimal dimensioning and the optimal location of the decentralized productions in the electrical networks. Finally, an active load model was designed to study different types of load curves (residential, commercial and industrial). We have also developed simulation algorithms to study the integration of wind farms in power grids. We have designed analytical methods to select the size and location of a wind farm, based on the reduction of active power losses. We have shown that variations in the mean annual wind speed could have a significant effect on the calculations of active power losses. Analytical methods and simulation algorithms were developed under Matlab / Simulink
Febbraro, Renato. "Mesure de la réponse des calorimètres centrales d'ATLAS à des pions chargés d'énergie comprise entre 3 et 250 GeV. Calibration des photomultiplicateurs du calorimètre hadronique d'ATLAS avec un système laser". Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2009. http://tel.archives-ouvertes.fr/tel-00724548.
Texto completoBitwe, Mihanda Richard. "Contribution à la réduction de la mortalité intrahospitalière des enfants en Afrique centrale, Nord Kivu - RD Congo". Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210353.
Texto completoDans le monde, presque 10,6 millions d’enfants meurent chaque année avant d’avoir atteint leur cinquième anniversaire. En dépit de l’existence théorique d’interventions curatives efficaces, on constate que la mortalité intrahospitalière peut demeurer très élevée dans les services de pédiatrie de nombreux pays à faible revenu notamment en Afrique. Pour améliorer la prise en charge des enfants dans ces hôpitaux et par conséquent la survie des enfants, il est nécessaire avant tout de faire le constat de la situation et de la reconnaître, d’en analyser les causes, de s’attaquer aux déterminants vulnérables et de se doter d’outils d’évaluation de la qualité de soins dans les hôpitaux. En tant que pédiatre oeuvrant à l’HPG, j’ai constaté que la mortalité intrahospitalière était élevée. Fruit d’une démarche personnelle, ce travail avait pour objectif global la réduction de cette mortalité.
Pour y arriver, les objectifs spécifiques étaient les suivants :
1) Décrire et évaluer la qualité des soins intrahospitaliers chez les enfants à l’HPG.
2)Préciser la mortalité intrahospitalière globale ainsi que les mortalités spécifiques.
3)Etudier l’importance des facteurs associés à la surmortalité des enfants à l’Hôpital Provincial de Goma.
4)Construire un modèle de prédiction de la mortalité globale intrahospitalière ainsi qu’un score pronostique adapté au contexte.
5)Mettre en place un programme de formation et de supervision du personnel médical et paramédical.
6)Etudier l’impact de ce programme sur la mortalité intrahospitalière.
Méthodologie
Les analyses ont porté sur les données des études qui se sont déroulés dans le service de pédiatrie de l’hôpital provincial de Goma (HPG), il s’agit des études suivantes: une étude descriptive d’observation d’évaluation de la qualité des soins intrahospitaliers des enfants en décembre 2004 (étude qualitative utilisant la méthode de Nolan), une étude de cohorte prospective intrahospitalière portant sur les indicateurs prédictifs de la mortalité (du 1er avril 2003 au 31 mars 2004) (« avant ») ,suivi d’une intervention dont l’impact avait été évalué de nouveau par une étude de cohorte prospective intrahospitalière (du 1er janvier 2005 au 31 décembre 2005) (« après ») (étude d’intervention quasi-expérimentale).
Résultats
Les résultats du travail étaient les suivants :
A) -Les facteurs qui augmentent le risque de décès étaient la référence tardive et la sévérité de la maladie à l’admission.
-Les facteurs limitant la qualité de la prise en charge et qui contribuaient probablement au mauvais pronostic étaient :
1)A l’admission, le triage n’était pas toujours correctement fait, les soins d’urgences étaient retardés l’après-midi et la nuit et 12% des admissions étaient différés. Il n’y avait pas de grille d’évaluation initiale, ni des guides pratiques de l’OMS, ni les guides standardisés de prise en charge, ni de kit d’urgence.
2)En hospitalisation, il y avait une insuffisance en nombre du staff (surtout l’après-midi et la nuit), le monitoring de base et les soins infirmiers étaient insuffisants surtout la nuit, les cliniciens notaient les signes cliniques, mais ne les documentaient pas toujours, le délai pour avoir le diagnostic était trop long et l’indisponibilité des médicaments prescrits.
-Le staff du service avait des connaissances théoriques et pratiques insuffisantes et une motivation insuffisante
B)-Durant la première étude de cohorte, une mortalité globale de 15,9% et des mortalités spécifiques anormalement élevées ont été observés. Les enfants les plus à risque de décès avaient, à l’admission, les caractéristiques suivantes :un âge < 1 an, un périmètre brachial < 115 mm ou un retard de croissance pondérale (-3< Z-PPA ≤ -2 et Z-PPA ≤ -3), une altération de la conscience, une raideur de la nuque, un tirage intercostal et une infection.
C)-Ces premières données avaient permis de construire le modèle Goma1 basé essentiellement sur les indicateurs suivants :l’âge,le périmètre brachial, l’état de conscience et le type d’infection. Grâce au score pronostique, il était destiné à la sélection à l’admission des enfants à risque élevé de décès pour une admission en soins intensifs et à la standardisation de la mortalité en vue de l’évaluation de la qualité de prise en charge.
D)-Une intervention a été menée, en décembre 2004 portant essentiellement sur la formation et la supervision du personnel de santé œuvrant à l’HPG. Grâce à une évaluation avant-après, on a pu déterminer l’impact probable de cette intervention :la mortalité globale a diminué de 15,9% (avant l’intervention) à 4,6% (après l’intervention) et restait toujours plus basse après l’intervention et après ajustement à l’aide du modèle.
Conclusions
La mortalité pédiatrique intrahospitalière est généralement beaucoup trop élevée et c’était le cas à l’HPG.
Notre démarche après ce constat et l’évaluation de la qualité des soins donnés aux enfants sur base d’un questionnaire qualitatif a été d’intervenir sur un des points mis en exergue par cette évaluation (formation et supervision du personnel insuffisante) et d’évaluer l’impact de ce programme sur la mortalité globale.
Les résultats ont suggéré un impact positif de ce programme (mortalité globale de 15,9% avant l’intervention et de 4,6% après l’intervention).
Si de nombreuses critiques liées à la méthodologie (évaluation uniquement qualitative, étude quasi-expérimentale avant-après, intervention limitée, etc) doivent être épinglées et limitent la portée de ce travail, la démarche entreprise a cependant permis de mobiliser le personnel de santé œuvrant dans des conditions difficiles, autour d’un projet commun et améliorer ainsi la prise en charge des enfants hospitalisés à l’HPG.
Doctorat en Sciences médicales
info:eu-repo/semantics/nonPublished
Amara, Aouad. "Étude du dosage d'éléments traces dans les liquides par activation avec les particules chargées et les neutrons rapides de cyclotron : application à la détermination des traces de plomb dans l'eau des centrales nucléaires". Clermont- Ferrand 2, 1995. http://www.theses.fr/1995CLF21704.
Texto completoM', zali Kamel. "Le vieillissement de la population française et sa prise en charge dans les structures hospitalières de soins de suite et de réadaptation". Thesis, Paris 1, 2013. http://www.theses.fr/2013PA010595.
Texto completoFollowing the trend of European continent population, French population is aging. Thus in the wake of a demographic transition that lasted more than two centuries with an important and continuous decline of mortality these years in the aged population, the life expectancy of the French population has experienced a fabulous boon. This regular progression of life expectancy ended up by increasing over the years the proportion of older persons and therefore their care needs. The Hospital as the cornerstone of the French health system has the more arduous task to care for the needs of aged population. Parallel to the continuous increase in demands for geriatric care, the difficult economic situation which characterizes the French public finances has led the authorities to introduce several reforms of heath institutions and facilities which are not without consequences for the quality of health services provided to the elderly patients. This thesis deals with the demographic, social and economic aspects of the aging French population by analyzing their effects in individual and collective spheres. It seeks to understand the challenges of support systems such as hospitals and care units of rehabilitation
Caussade, Diane. "Troubles du langage verbal et non-verbal dans la maladie d'Alzheimer : Effets d'ateliers en voix chantée". Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAL019/document.
Texto completoDespite the multimodal character of language, few researches studied the verbal and non-verbal communication abilities of people with Alzheimer’s disease, and even less of remediation via singing voice of those disorders. However their remediation could help to slowing down the symptomatic progression of language disorders. Given life expectancy, the exponential prevalence of neurocognitive disorders from 65 years old – of which most frequent cause is Alzheimer’s disease for which no curative treatment exists at this time –, the identification of factors slowing the symptoms progression is of the utmost importance. In view of those elements, this research focuses on the impact of singing on verbal and non-verbal communication disorders in Alzheimer’s disease. To do so, an original protocol has been set up consisting in a repetition task in singing or in speech, with or without the presentation of communicative manual gestures. This protocol helped evaluating multimodal communication abilities of people with Alzheimer’s disease and with ‘normal’ ageing. At the pre-tests, many verbal and non-verbal language disorders have been found. From the mild stage of the disease, the participants of the Patient group have produced more linguistic errors (of different types) and pauses and/or vocalic lengthenings than Control group participants. The manual gestures repetition ability of the participants of the Patient group also seems impacted, as the quality of iconic gestures production. From the moderate stage of the disease, the participants of the Patient group have produced more linguistic errors and on different types of linguistic unities, as well as more spontaneous co-verbal gestures than Control group participants. From the severe stage of the disease, the participants of the Patient group have repeated less utterances and produced more pauses and/or vocalic lengthenings than Control group participants. An impact of singing voice has only been noted on the utterances’ repetition rate, less high in singing and speech for all participants, which could be cause by a double task effect. The comparative results of verbal and non-verbal linguistic abilities have showed a positive impact of workshops in singing on the production of linguistic errors and the communicative gestures repetition of the participants of the Patient group. Our results have been discussed in the light of literature in order to distinguish verbal and non-verbal language disorders linked to ‘normal’ ageing and those symptomatic of Alzheimer’s disease. These findings enable us to make progress and to bring contribution in the current debate on the diverse possible origins of language in its multimodality, as well as suggest a line of research of the impact of singing voice on language disorders of people with Alzheimer’s disease
Ješe, Uroš. "Numerical study of pump-turbine instabilities : pumping mode off-design conditions". Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAI090/document.
Texto completoFlexibility and energy storage seem to be the main challenges of the energy industry at the present time. Pumped Storage Power Plants (PSP), using reversible pump-turbines, are among the most cost-efficient solutions to answer these needs. To provide a rapid adjustment to the electrical grid, pump-turbines are subjects of quick switching between pumping and generating modes and to extended operation under off-design conditions. To maintain the stability of the grid, the continuous operating area of reversible pump-turbines must be free of hydraulic instabilities. Two main sources of pumping mode instabilities are the presence of the cavitation and the rotating stall, both occurring at the part load. Presence of cavitation can lead into vibrations, loss of performance and sometimes erosion. Moreover, due to rotating stall that can be observed as periodic occurrence and decay of recirculation zones in the distributor regions, the machine can be exposed to uncontrollable shift between the operating points with the significant discharge modification and the drop of the efficiency. Both phenomena are very complex, three-dimensional and demanding for the investigation. Especially rotating stall in the pump-turbines is poorly addressed in the literature. First objective of the presented PhD study has been to develop the cost-efficient numerical methodology in order to enable the accurate prediction and analysis of the off-design part load phenomena. The investigations have been made on the reduce-scaled high head pump-turbine design (nq = 27rpm) provided by Alstom Hydro. Steady and unsteady numerical calculations have been performed using code FINE/Turbo with barotropic cavitation model implemented and developed before in the laboratory. Some of the numerical results have been compared to the experimental data. Cavitating flow analysis has been made for various flow rates and wide range of cavitation levels. Flow investigation has been focused on the cavitation influence on the flow behavior and on the performance of the machine. Main analyses include incipient cavitation values, head drop curves and cavitation forms prediction for wide ranges of flow rates and NPSH values. Special attention has been put on the interaction between cavitation forms and the performance drop (hump zone) caused by the rotating stall. Cavitation results showed good agreement with the provided experimental data. Second part of the thesis has been focused on the prediction and analysis of the rotating stall flow patterns. Computationally fast steady simulations has been presented and used to predict stable and unstable operating regions. The analyses have been done on 4 different guide vanes openings and 2 guide vanes geometries. In order to get detailed information about the unsteady flow patterns related to the rotating stall, more exact unsteady simulations have been performed. Local flow study has been done to describe in details the governing mechanisms of the rotating stall. The analyses enable the investigations of the rotating stall frequencies, number of stalled cells and the intensity of the rotating stall. Moreover, the unsteady calculations give very good prediction of the pump-turbine performance for both, stable and unstable operating regions. Numerical results give very good qualitative and quantitative agreement with the available experimental data. The approach appears to be very reliable, robust and precise. Even though the numerical results (rotating stall frequencies, number of cells...) on the actual geometry should be confirmed experimentally, author believes that the methodology could be used on any other pump-turbine (or centrifugal pump) geometry. Moreover, the simulations can be used industrially to study the effects of the guide vanes geometries, guide vanes opening angles and influence of the gap between the impeller and the distributor in order to reduce or even eliminate the negative effects of the rotating stall