Proefschrift--Rijksuniversiteit te Leiden, 2003. / Bibliogr. p. 229-240. Résumés en anglais et en français.

Integrated primary care (IPC) may help palliate the demand for mental health services and barriers to such care. There are varying degrees of integration (Blount, 2003; Doherty, 1995; Strosahl, 1998), with suppositions that certain patients may fare better in certain levels/models of IPC than in others (Doherty, McDaniel, & Baird, 1996; Mauer, 2006). No research to date has examined the interface between levels of care and patient behavioral and physical health demands, hence the aim of the current study. The current study utilized Mauer’s (2006) Four Quadrant Model to ascertain patient differences in behavioral and physical health demands and utilization across three levels of care: co-located, integrated, and a hybrid (receipt of both colocated and integrated care) for a general adult population within a community-based nurse practitioner-led FQHC. Total time spent in behavioral health treatment, total number of behavioral health sessions, number of presenting behavioral health concerns at baseline, and number of behavioral health no-shows and cancellations since baseline, differed significantly across the levels of integration. Number of past-year medical visits, number of chronic illnesses, and number of active medications at baseline did not differ significantly between groups, indicating that patient differences between levels of care were based more on behavioral health variations than physical variables. Moreover, patients were no more or less likely to be represented in one level/model of care over another based on patient quadrants, or combinations of high and low physical and behavioral health demands. This study is the first to our knowledge to examine the intersect of patient quadrants and levels/models of IPC. Future research should examine the intersect and impact of level/model of care and patient behavioral and physical health demands on outcome.

Je présente dans mon travail de thèse une étude complète du coronographe à quatre quadrants proposé par D. Rouan (2000). Ce nouveau coronographe offre des performances de réjection théoriques extrêmement importantes (>10^6). Ces performances ouvrent des possibilités de détection d'exo-planètes autour des étoiles proches. Les premiers résultats en laboratoire, ont donné des taux d'atténuation de l'étoile centrale supérieurs à 90000\footnote(: le résumée de la thèse indique 44000, mais une calibration fine de la densité employée nous donne 90000. ) sur le pic central. J'ai donc naturellement étudié toutes les utilisations possibles de ce coronographe au sol comme dans l'espace. En premier lieu, il peut être utilisé sur les télescopes au sol avec une optique adaptative à haut Strehl. Des simulations numériques seront présentées dans le cadre du projet ``Planet Finder'' de l'ESO pour la détection des naines brunes et des planètes géantes chaudes autour des étoiles les plus proches. Ensuite, je me suis intéressé à l'utilisation du 4Q sur l'instrument MIRI (Mid InfraRed Imager) du JWST, puis sur un interféromètre spatial (pour ``Terrestrial Planet Finder'') de la NASA. Néanmoins, un des problèmes majeurs du masque à 4 quadrants reste le chromatisme du déphasage de pi pour une utilisation en large bande dans le cadre de TPF. Je présenterai donc des solutions permettant d'achromatiser le coronographe.

S’inscrivant dans le cadre de la gestion de l’énergie dans l’habitat du programme SESAME du pôle de compétitivité S2E2, l’objectif de cette thèse est d’étudier et de proposer une structure d’interrupteur commandable à l’ouverture et à la fermeture, bidirectionnel en tension et en courant et à faible perte énergétique, destiné à connecter tout type de charges sur le réseau alternatif 230V/50Hz. Il n’existe pas à l’heure actuelle de composants interrupteurs monolithiques de ce type. La première partie du mémoire présente les interrupteurs électroniques existants. La deuxième partie, traite des interrupteurs électroniques à base de transistors MOS et des limites de cette technologie unipolaire en termes de compromis de minimisation de surface de puces et de minimisation de la dissipation de puissance. Nous montrons ensuite que l’on peut repousser ces limites en adoptant des solutions à base de transistors bipolaires de puissances et notamment avec des bases fines autoprotégées (Transistors GAT). Le quatrième chapitre présente les résultats d’une étude des caractéristiques à l’état passant et à l’état bloqué de transistors GAT et valide leur aptitude à fonctionner sur le réseau alternatif. Nous montrons plusieurs voies possibles d’amélioration des caractéristiques de ces transistors avant d’étudier leur comportement dans une fonction interrupteur. Nous terminons ce travail en démontrant l’intérêt de la commande des transistors GAT en mode de conduction inverse, intérêt qui nous conduit ensuite à proposer une structure d’interrupteur totalement novatrice, avec la réduction par deux du nombre de composants et donc une réduction accrue de la puissance dissipée dans l’interrupteur. / As part of the energy management for household appliances of the S2E2 competitive pole SESAME program, the objective of this thesis is to propose a bidirectional switch in current and voltage with full turn-off control and low energy loss, ensuring the control of all loads types connected to the mains. The first part of this thesis presents the advantages and disadvantages of discrete or monolithic switches. In the second part, we were interested in electronic switches composed of MOS transistors. Different associations strategies and controls will be tested to reduce the power dissipation of the switch on the one hand, and facilitate control of the device on the other hand. Then we turned to solutions based on power bipolar transistors. The last one, called GAT distinguished itself by its high current gain and its low voltage drop in the on state. By implementing around the active base heavily doped caissons which create a shielding effect, one can increase the structure performances. After the design of this component in our laboratory, the characteristics of the on state and the off state were improved to validate its functionality in AC mains. The study will then focus on different technologies to confirm its performances. Using low metallization resistance and assembly strategy intelligently defined, it has been demonstrated that the performance of this component can be increased. Finally, we proposed a new switch structure using only two transistors GAT. We show that the interesting GAT reverse mode characteristics permit to deflect the load current flowing in the diodes and delete them. So we reduced the important source of power dissipation in the switch.

Made available in DSpace on 2014-06-11T19:28:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-07-31Bitstream added on 2014-06-13T20:58:21Z : No. of bitstreams: 1 cavallari_ll_me_jabo.pdf: 308544 bytes, checksum: a81cd7ae7d46b91e13920feba8830c5f (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Sendo baixo o florescimento e a alternância de produção um sério problema para os produtores de lichia do mundo todo, se instalou este experimento em plantas do banco de germoplasma da Faculdade de Ciências Agrárias e Veterinárias, UNESP - Jaboticabal, estado de São Paulo. Com o objetivo de estudar o efeito do anelamento de ramos sobre o florescimento, a influência dos quadrantes geográficos no florescimento e, com base nas medidas do fruto nos eixos longitudinal (L) e transversal (T), indicar o período da maturação de variedades de lichia Bengal, Brewster, Mauritius, WB4, Americana e Groff com 9 anos de idade. Foram registrados dados de temperatura, precipitação, o número de flores por ramos e o comprimento dos eixos L e T dos frutos. Efetuou-se o anelamento de ramos com 1 cm de espessura na primeira quinzena do mês de abril de 2007. Os ramos selecionados situavam-se na parte mediana da copa, os 4 ramos anelados foram alternados com as 4 testemunhas completando todo o diâmetro da árvore. As avaliações foram realizadas da primeira quinzena no mês de agosto de 2007 até a primeira semana no mês de outubro de 2008. Nota-se que, para o ano de 2007, as temperaturas foram mais elevadas e isso pode ter desfavorecido o florescimento da variedade Bengal. No entanto, no ano de 2008, em que as temperaturas máximas e mínimas foram mais amenas, foi observado o florescimento para a última variedade. Verificou-se que em 2007 a precipitação média mensal no mês de abril e maio foi mais próxima da recomendada que em 2008 no mesmo período. Houve maior florescimento em ramos anelados em 2007, sendo que a ‘Brewster’ diferiu significativamente com melhor florescimento neste ano, seguida da ‘Mauritius’ e ‘WB4’. Em 2008 a ‘Groff’ diferiu significativamente com maior porcentagem de ramos anelados com flores. Foi... / Being the low growth and irregular production are problems encountered by producers in the world. This experiment was installed in plants from germplasm bank at Faculty of Agrarian and Veterinary Sciences, UNESP - Jaboticabal, São Paulo state. In order to study the effects of branches girdling was evaluated on flowering, the influence of geographical areas in the flowering and on the fruit basis the longitudinal (L) and transverse (T) axis indicate the best period to maturity varieties of litchi Bengal, Brewster, Mauritius, WB4, Americana and Groff with 9 years old. Data were recorded in temperature, precipitation, number of flowers per branch and the length of L and T axes of the fruit. The girdling with 1 cm of thickness was made in April of 2007. The branches selected were located in the median of the crown; the four girdled branches were alternated with four controls completing the entire tree diameter. The treatments were performed at the same season, the first half of August to first week in the month in October, in 2007 and 2008. Note that, for the 2007 year the temperatures were higher and this may have disadvantaged the flowering of the Bengal variety. However, in the 2008 year where the maximum and minimum temperatures were milder, the flowering was observed for the same variety. In 2007, the average monthly of precipitation in April and May was closer to recommended in 2008 in the same period. The girdled branches in 2007 was higher flowering and the 'Brewster' differed significantly with better flowering in this year, followed by 'Mauritius' and' WB4 '. In 2008 the 'groff' differed significantly with a greater percentage of girdled branches with flowers. The advance of flowering was observed in girdled branches. Brewster and Bengal varieties may be alternating, because the girdling these varieties induced the largest flowering of... (Complete abstract, click electronic access below)

Orientador: Antonio Baldo Geraldo Martins / Banca: José Antonio Alberto da Silva / Banca: Simone Rodrigues da Silva / Resumo: Sendo baixo o florescimento e a alternância de produção um sério problema para os produtores de lichia do mundo todo, se instalou este experimento em plantas do banco de germoplasma da Faculdade de Ciências Agrárias e Veterinárias, UNESP - Jaboticabal, estado de São Paulo. Com o objetivo de estudar o efeito do anelamento de ramos sobre o florescimento, a influência dos quadrantes geográficos no florescimento e, com base nas medidas do fruto nos eixos longitudinal (L) e transversal (T), indicar o período da maturação de variedades de lichia Bengal, Brewster, Mauritius, WB4, Americana e Groff com 9 anos de idade. Foram registrados dados de temperatura, precipitação, o número de flores por ramos e o comprimento dos eixos L e T dos frutos. Efetuou-se o anelamento de ramos com 1 cm de espessura na primeira quinzena do mês de abril de 2007. Os ramos selecionados situavam-se na parte mediana da copa, os 4 ramos anelados foram alternados com as 4 testemunhas completando todo o diâmetro da árvore. As avaliações foram realizadas da primeira quinzena no mês de agosto de 2007 até a primeira semana no mês de outubro de 2008. Nota-se que, para o ano de 2007, as temperaturas foram mais elevadas e isso pode ter desfavorecido o florescimento da variedade Bengal. No entanto, no ano de 2008, em que as temperaturas máximas e mínimas foram mais amenas, foi observado o florescimento para a última variedade. Verificou-se que em 2007 a precipitação média mensal no mês de abril e maio foi mais próxima da recomendada que em 2008 no mesmo período. Houve maior florescimento em ramos anelados em 2007, sendo que a 'Brewster' diferiu significativamente com melhor florescimento neste ano, seguida da 'Mauritius' e 'WB4'. Em 2008 a 'Groff' diferiu significativamente com maior porcentagem de ramos anelados com flores. Foi ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Being the low growth and irregular production are problems encountered by producers in the world. This experiment was installed in plants from germplasm bank at Faculty of Agrarian and Veterinary Sciences, UNESP - Jaboticabal, São Paulo state. In order to study the effects of branches girdling was evaluated on flowering, the influence of geographical areas in the flowering and on the fruit basis the longitudinal (L) and transverse (T) axis indicate the best period to maturity varieties of litchi Bengal, Brewster, Mauritius, WB4, Americana and Groff with 9 years old. Data were recorded in temperature, precipitation, number of flowers per branch and the length of L and T axes of the fruit. The girdling with 1 cm of thickness was made in April of 2007. The branches selected were located in the median of the crown; the four girdled branches were alternated with four controls completing the entire tree diameter. The treatments were performed at the same season, the first half of August to first week in the month in October, in 2007 and 2008. Note that, for the 2007 year the temperatures were higher and this may have disadvantaged the flowering of the Bengal variety. However, in the 2008 year where the maximum and minimum temperatures were milder, the flowering was observed for the same variety. In 2007, the average monthly of precipitation in April and May was closer to recommended in 2008 in the same period. The girdled branches in 2007 was higher flowering and the 'Brewster' differed significantly with better flowering in this year, followed by 'Mauritius' and' WB4 '. In 2008 the 'groff' differed significantly with a greater percentage of girdled branches with flowers. The advance of flowering was observed in girdled branches. Brewster and Bengal varieties may be alternating, because the girdling these varieties induced the largest flowering of... (Complete abstract, click electronic access below) / Mestre

Afin de maintenir une bonne qualité de l’électricité, les gestionnaires de réseaux doivent maintenir les niveaux de tension harmonique en-dessous de certaines limites spécifiées dans les normes. Les niveaux de tension harmonique résultent des équipements non-linéaires présents dans les installations, qui injectent des courants harmoniques sur le réseau.Dans ce but, une solution consiste à appliquer des limites d’émission à ces installations. Les gestionnaires de réseaux ont besoin pour cela d’un indicateur fiable pour évaluer le niveau d’émission harmonique d’une installation.Dans ce cadre, nous nous sommes tout d’abord intéressés aux différentes méthodes existantes, que nous avons appliqué sur des cas de réseaux simplifiés afin de les évaluer sur plusieurs critères. Nous avons ainsi identifié dans un premier temps les définitions qui répondent le mieux à notre besoin ainsi que leurs limites restectives. Dans un deuxième temps, nous avons amélioré une des définitions retenues en proposant une nouvelle solution : la définition “quatre quadrants”.Cette nouvelle définition permet d’évaluer le courant harmonique émis par une installation sur le réseau en se basant sur les mesures de la tension et du courant au point de livraison de l’installation. Son principal intérêt par rapport aux méthodes existantes est de mieux identifier les installations moyennement perturbatrices sur le réseau. Ce point a été validé en simulation sur un réseau dérivé du benchmark CIGRE. / In order to maintain good power quality, Distribution Systems Operators (DSOs) must keep harmonic voltage levels under limits specified in standards. These harmonic voltages result from non-linear equipment connected in installations, which inject harmonic currents into networks.A possible solution to solve this problem consists to implement emission limits per installation. In order to apply these limits, DSOs need to have an accurate and reliable indicator to assess the harmonic emission of an installation.In this context, we studied different methods from the literature. We implemented each of them on several simplified distribution networks in order to evaluate them on several criteria. First, we identified the most interesting definitions from the literature, and emphasized their respective theorical limits. Then, we improved one of these definitions by proposing a new solution: the “four-quadrants” definition.This new definition is able to assess the harmonic current injected by an installation into the network by using current and voltage measurements at the point of common coupling of this installation. Its main advantage in comparison to other methods is a better detection of “medium” disturbing installations over the network. This advantage has been confirmed by implementing the proposed solution in simulation on a distribution network derived from the CIGRE benchmark.

Ce travail entre dans le cadre d'un programme de recherche consistant à développer des outils d'optimisation de la prise de décision des régatiers face aux situations micro-météorologiques complexes rencontrées lors des compétitions olympiques ou de match-racing. Notre objectif est l'amélioration des connaissances de l'évolution du vent sur les plans d'eau de régates côtières. Un dispositif d'étude de la micro-météorologie en baie de Quiberon incluant un volet expérimental et un volet numérique, a été mis en place. Plusieurs situations météorologiques ont été rencontrées pendant la campagne de mesures Quiberon2006 (16-29 Juin 2006). L'analyse des données collectées montre, à partir d'une classification en quadrants, l'influence du vent synoptique sur les transitions et les développements des phénomènes de brise. Des simulations à haute résolution spatiale de certaines journées sélectionnées ont été menées avec le modèle atmosphérique ARPS pour appréhender les effets de sites liés au découpage de la côte et à la présence de la presqu'île. La représentation fine de la topographie et des modes d'occupation des sols s'appuie sur l'analyse de la base de données CORINE Land Cover. Les champs météorologiques d'échelle régionale, servant de forçage au modèle à haute-résolution, proviennent d'assimilations effectuées avec le modèle WRF. La capacité des modèles à reproduire les phénomènes micro-météorologiques côtiers en site complexe est évaluée par comparaison aux données expérimentales. L'approche de modélisation à haute résolution permet de caractériser les comportements du vent à l'échelle du plan d'eau, caractéristiques difficilement quantifiables expérimentalement.

No description available.