Made available in DSpace on 2016-04-28T14:16:45Z (GMT). No. of bitstreams: 1 Sabrina Pascoli Rodrigues.pdf: 875300 bytes, checksum: 66664297b23253c6407081e34fa819d0 (MD5) Previous issue date: 2010-05-14 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Nowadays, in general, the chemist Louis Pasteur (1822-1895) takes all the credit for the researches that led to the production of the vaccine against hydrophobia. This dissertation deals with Pasteur s contributions concerning this subject, from 1879 to1885, taking into account its context. It also discusses the contributions from the veterinary Pierre Victor Galtier (1846-1908) and the physician Émile Roux (1853-1933). The aim of this research is trying to elucidate the existence of a possible superiority or priority concerning some important contributions related to rabies considering Pasteur, Galtier and Roux s publications on the subject during the period. This dissertation contains an introduction and four chapters. Chapter 1 provides an overview of Pasteur s researches before carrying out his researches on rabies, as well as its scientific context. Chapter 2 discusses the researches on rabies did by Galtier (1846-1908). Chapter 3 analyses the researches on rabies conducted by Pasteur and his collaborator, Roux. Chapter 4 presents some final remarks on the subject. This study led to the conclusion that the vaccine against rabies is the product of several scientists work such as Galtier, Roux and Pasteur. Besides that, it pointed out that Pasteur s contribution on the subject was not so significant as it is normally thought. Galtier and Roux should have achieved recognition indeed. Moreover, the popular version of this episode cannot be explained only taking into account Pasteur s scientific contributions on the subject / Hoje em dia, geralmente, é o químico Louis Pasteur (1822-1895) quem recebe o crédito pelas pesquisas que levaram à produção da vacina anti-rábica. Esta dissertação trata das contribuições de Pasteur sobre o assunto durante o período compreendido entre 1879 e 1895, levando em conta seu contexto. Discute também as contribuições do veterinário Pierre Victor Galtier (1846-1908) e do médico Émile Roux (1853-1933). O objetivo desta pesquisa é procurar elucidar a existência de uma possível superioridade ou prioridade em relação a importantes contribuições relacionadas à raiva considerando as publicações de Pasteur, Galtier e Roux sobre o assunto no período. Esta dissertação contém uma introdução e quatro capítulos. O Capítulo 1 oferece uma visão geral das pesquisas de Pasteur que antecederam seus estudos sobre a raiva, bem como seu contexto científico. O Capítulo 2 discute as pesquisas sobre a raiva feitas por Galtier (1846-1908). O Capítulo 3 analisa as pesquisas sobre a raiva desenvolvidas por Pasteur e seu colaborador, Roux (1853-1933). O Capítulo 4 apresenta algumas considerações finais sobre o assunto. Este estudo levou à conclusão de que a vacina contra a raiva é o produto do trabalho de vários cientistas tais como Galtier, Roux e Pasteur. Além disso, indica que a contribuição de Pasteur sobre o assunto não é tão significativa como se pensa geralmente. Certamente Galtier e Roux mereciam ter recebido um maior reconhecimento por suas contribuições. Além disso, a versão aceita popularmente sobre este episódio não pode ser explicada somente através das contribuições científicas de Pasteur

This work endeavours to introduce two treatises which deal with the topic of ideal nobleman at the turn of Baroque and Enlightenment in Czech lands. Both of them were written in French by scholars who had some relation with Czech lands. The first one is a manuscript called ?Le prince selon Dieu et les hommes prouvé par les propres paroles de l? écriture sainte et appuyé du témoignage des docteurs de l?église et des Meilleurs auteurs profanes?? ( The Prince according to God and the people, proved by the words of Holy Scripture and supported by the testimony of church scholars and of the best secular authors) which was written in 1725 by a teacher of French language named Philibert Joseph le Roux and its content shows the baroque point of view of virtues which are indispensable for every Christian prince. The second one is younger, it is a print called ?Connoissances que doit avoir un jeune seigneur ou l?idée d?un homme d?honneur? (The Knowledge which a young man has to have i.e. the ideal of the honest man) which was created at the end of 18th century. The aim of its analysis is to find out if the ideal of nobleman during 18th century has changed or not. The introduction of this thesis defines the topic and analyzes the state of research. In the next parts, the thinking of Baroque and Enlightenment is indicated as well as the change of position of the nobility during these two periods. The main part introduces a scholarly account of virtues and qualities which are, in a view of each author, necessary for every aristocrat.

Submitted by Natalia de Souza Gonçalves (natalia.goncalves@ufpe.br) on 2016-10-10T13:09:11Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) GALENO EGYDIO - COLACAO DE GRAU.pdf: 1509311 bytes, checksum: f4dc67e7a0e6a1a9159df433631ba569 (MD5) / Made available in DSpace on 2016-10-10T13:09:12Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) GALENO EGYDIO - COLACAO DE GRAU.pdf: 1509311 bytes, checksum: f4dc67e7a0e6a1a9159df433631ba569 (MD5) Previous issue date: 2014-02-19 / O uso de anel na derivação gástrica em Y de Roux (DGYR) está associado à intolerância alimentar pós-operatória, cujo tratamento clássico tem sido a remoção cirúrgica. Um novo método utilizando prótese plástica autoexpansível (PPAE) induz erosão intragástrica do anel, o qual é removido por via endoscópica de forma minimamente invasiva. Objetiva-se analisar a eficácia e a segurança dessa técnica de remoção de anel após DGYR. Estudo prospectivo longitudinal de série de 41 pacientes com intolerância alimentar associada à presença de anel, que foram, tratados por via endoscópica, entre 2007 e 2013. O grupo apresentava média de idade igual a 44,1 anos, IMC médio de 27,0 Kg/m², e vômitos foram os sintomas mais frequentes (n=37), com ocorrência diária em 46,3%. O sucesso terapêutico foi definido como a melhora dos sintomas após a remoção do anel. O implante de PPAE foi realizado sob anestesia geral e guiado por radioscopia, sendo utilizado endoscópio padrão. Os pacientes receberam alta após 24 horas com dieta líquida e inibidor de bomba de prótons (IBP), que foi prescrito durante o tempo médio de permanência da PPAE, que foi de 15,3 dias. A prótese promoveu erosão completa de anel em 24 (58,5%) pacientes e no grupo restante, a remoção em segundo estágio após 7 dias com pinça de corpo estranho. Houve três casos de migração da prótese com eliminação espontânea por via retal. O efeito adverso mais comum foi vômito (n=7). Não houve complicações graves, nem necessidade de remoção precoce da prótese. Após seguimento médio de 6 meses, não houve mudança significativa no IMC e 78% dos pacientes foram capazes de ingerir carne vermelha. A remoção do anel com uso de prótese endoscópica demonstrou ser um procedimento seguro e eficaz, com100% dos anéis sendo removidos com sucesso e 29,3% de ocorrência de eventos adversos leves (vômitos). Esta técnica é uma alternativa adequada na remoção do anel, evitando a intervenção cirúrgica e reduzindo a possibilidade de reganho de peso. / Ring dysfunction after roux-en-y gastric bypass (RYGB) causing delayed gastric emptying on Fobi pouch is classically treated by surgical ring removal. In a novel way of using selfexpandable stents, intraluminal erosion of the ring is achieved, allowing its removal by endoscopy, with no need of surgery. No study has shown clinical applicability of this principle in RYGB banded with silastic ring. In this case series we analyze endoscopic removal of noneroded dysfunctional rings after RYGB using self-expandable plastic stents (SEPS). This is a prospective case series of 41 patients with delayed gastric emptying secondary to extrinsic compression of the ring after RYGB between 2007 and 2013. Successful ring removal, symptoms improvement, weight control and adverse events were evaluated. Mean age of subjects was 44.1 years, median BMI at treatment was 27.0 Kg/m2. Most common symptom was vomiting (n=37), with daily occurrence in 46.3%. Success was defined as symptoms improvement after stent and ring removal. SEPS placement was done under general anesthesia and fluoroscopic guidance. A standard gastroscope (Pentax Medical, Montvale, NJ), and a PolyflexTM stent (25x21x150mm) (Boston Scientific, Natick, MA) were used in all cases. All patients were discharged after a 2-hour observation period, with liquid diet and proton pump inhibitor. SEPS induced complete erosion in 24 patients, allowing for simultaneous stent and ring removal. The median time of stenting was 15 days. There was one case of stent migration, which was naturally expelled. Most common adverse event was vomiting (n=7). There was no early stent removal, and no serious complications. After a mean follow-up of 6 months, there was no significant change in mean BMI, and 78% of patients are able to ingest solid foods. Endoscopic stents led to ring intraluminal erosion in 100% of subjects, allowing for successful removal of dysfunctional rings. The procedure is technically feasible and safe, with a 29.3% occurrence of mild adverse events (vomiting), and no serious complications. It proved to be a reasonable alternative for ring removal in our casuistic, avoiding surgery, and decreasing the possibility of weight regain.

Comme nombre de cités industrielles Firminy (Loire) est au sortir de la seconde guerre mondiale une ville où insalubrité et surpeuplement règnent. Les amitiés tissées dans les réseaux de résistance, la recherche d’un terrain propice aux expériences amènent un ancien ministre de la Reconstruction, Eugène Claudius-Petit, déjà député, à briguer le poste de maire. Elu en 1953, il lance très rapidement une vaste opération de rénovation et de restructuration de la cité. Alors que les grands ensembles fleurissent dans les banlieues des grandes villes, il impulse un programme de ce type dans une cité de 25 000 habitants. Il fait appel à une équipe resserrée d’amis architectes, Roux, Sive, Delfante pour concevoir un nouveau quartier suivant les idées de la Charte d’Athènes, Firminy-Vert. Opération de secteur industrialisé, le chantier est aussi un modèle d’industrialisation et de préfabrication. La construction de plus de 1000 logements est lancée et a pour ambition d’offrir aux locataires une nouvelle manière d’habiter génératrice d’une nouvelle société. Architecture, urbanisme, sont mis au service d’une renaissance de la cité. Bâtissant un quartier ils incluent dans le projet des équipements collectifs : écoles, commerces, stade et même une maison de la Culture. Le Corbusier est invité et conçoit pour cette cité une Maison de la Culture, un stade, une unité d’habitation et une église dont le chantier, étalé sur plus de 30 ans, vient de connaître son achèvement offrant à la cité une reconnaissance patrimoniale internationale. La communauté rêvée et attendue dans cet habitat moderne laisse place à la communauté réelle qui s’approprie et transforme ce quartier trop souvent oublié. / Firminy a small mining community in the outskirts of Saint-Etienne (France) at the end of WW2 is no different from most industrial cities, the stigma of poverty, human misery, overcrowded and unplanned developments are everywhere. Eugene Claudius Petit, in charge of the post war country rebuilding effort will leverage its connections with the best town planners and Architects to launched some new architectural and planning developments in Firminy, a City were he has been elected mayor in 1953. The renewal and redevelopment endeavor is mimicking in a city of just 25 thousand inhabitants, the projects that at a much broader scale flourish throughout the continent. But the project is also sticking by Eugene Claudius Petit to recruit the best architects and town planner of the time. Roux, Selfante and Sive will help red-define the entire city based on the 95-point program of the Athens chart. Firminy-Vert will also prove to be the perfect model and case study for new building methods experiments and the use of prefabricated element in particular. One thousand accomodations are completed, offering as much useful amenities as possible is a key element in order to create a new way of living, even a new sense of community and society. Architects, town planners are working together to rebuild, regenerate, hoping for a complete Renaissance. Public amenities such as a sport center, a cultural and communities center, a church (which as just been completed 30 years after the ground breaking and give the opportunity for this now coherent development to be world heritage. The idealistic community comes to live translated into a very real community that generates life in a neighborhood too often undervalued and almost forgotten.

La présente thèse a été évaluée par un jury composé des personnes suivantes: Molly Kao, Présidente-rapporteuse; François Duchesneau, Directeur de recherche; Frédéric Bouchard, Membre du jury; Stéphane Schmitt (CNRS, Paris), Examinateur externe; Jean-François Pflieger (UdeM - Biologie), Représentant du doyen de la FESP. / L'objectif premier de cette thèse est de démontrer l'existence d'une logique de la découverte embryologique à l'œuvre dans la genèse de l'Entwicklungsmechanik et renouvelant l'opposition entre préformation et épigenèse. L'articulation d'une typologie du développement et d'une heuristique mécaniste alimente d'une part la réduction causale des phénomènes. L'expérimentation embryologique dévoile d'autre part des phénomènes complexes de régulation épigénétique qui forcent les biologistes à transformer leurs modèles explicatifs. Cette thèse analyse d'abord le rôle de la théorie darwinienne dans l'établissement d'une heuristique mécaniste appliquée à la morphologie. L'Entwicklungsgeschichte d'Ernst Haeckel opère alors la synthèse du programme embryologique de Karl von Baer et de la théorie darwinienne et la réduction physiologique de l'épigenèse typologique schématisée par la loi biogénétique de récapitulation. Une physiologie du développement s'émancipe de la méthodologie haeckelienne et de son cadre phylogénique. Prenant le relais de la physique du développement menée par Wilhelm His (1874), Wilhelm Roux réalise une synthèse physiologique du darwinisme dans Der Kampf der Theile im Organismus (La Lutte des parties dans l'organisme 1881). Une troisième partie de la thèse est consacrée à l'Entwicklungsmechanik et à ses rapports avec le néo-darwinisme d'August Weismann. On y retrace les étapes primordiales de la conception nucléo-idioplasmique de l'hérédité. Les découvertes de la mitose et de la fécondation (1873-1884), combinées à la théorie de Carl von Nägeli (1884), servent de préalables au néo-préformationnisme weismannien; dès 1885, Weismann postule ainsi une prédétermination interne du développement qui se réaliserait par division inégale de qualités héréditaires sises dans l'architecture chromatique du noyau. Cette théorie trouve appuie dans des expérimentations de destruction de blastomères (Chabry 1887, Roux 1888) mais est remise en cause par la découverte de la Theilbildung (Hans Driesch 1892). La réorganisation des destins morphogénétiques de cellules en différenciation (Umdifferenzierung) échapperait donc à la modélisation mécanique du développement. Deux issues au problème sont analysées : (1) l'invention du premier modèle d'induction embryonnaire (Driesch 1894) combinée à une épigenèse néo-vitaliste; (2) la théorie organiciste d'Oscar Hertwig, alliant les principes de la théorie cellulaire à une critique de l'application biologique de la causalité mécanique. L'analyse épistémologique des moments fondateurs de l'embryologie expérimentale éclaire comment une logique de la découverte a pris en compte présupposés préformationnistes et modèles mécanistes, structurant ainsi le devenir de la biologie développementale contemporaine. / The main goal of this dissertation is to demonstrate the existence of a logic of embryological discovery which contributed to the genesis of Entwicklungsmechanik, and which renewed the opposition between preformation and epigenesis. On the one hand, the synthesis between a typology of development and a mechanistic heuristic led to a causal reductionist account of phenomena. Embryological experimentation, on the other hand revealed complex processes of epigenetic regulation which forced biologists to transform their models of explanation. This dissertation begins with an analysis of the role of Darwinism in the development of a mechanistic heuristic applied to morphology. Ernst Haeckel's Entwicklungsgeschichte proposed a synthesis between Karl von Baer's embryological program and Darwinism, which led to a physiological-reductionist view of typological epigenesis on the basis of the recapitulation law. A physiology of development thus frees itself from Haeckelian methodology and its phylogenic framework. While relying on Wilhelm His' physics of development (1874), Wilhelm Roux carried out a physiological synthesis of Darwinism in Der Kampf der Theile im Organismus (The Struggle of Parts in the Organism 1881). The third part of this dissertation examines the Entwicklungsmechanik and its relationship to August Weismann's Neo-Darwinism. The essential steps of the nuclear-idioplasmic theory of heredity are then described. The discoveries of mitosis and fertilization (1873-1884), combined with Carl von Nägeli's theory (1884), served as preconditions to Weismann's Neo-Preformationism. By 1885 Weismann postulates the existence of an internal predetermination of development, which would be carried out by unequal division of inherited qualities located in the nucleus chromatic architecture. This theory is first supported by experiments on blastomere destruction (Chabry 1887, Roux 1888), but it ends up being challenged by the discovery of Theilbildung (Hans Driesch 1892). The coordinated actions of differentiating cells which led to the reorganization of their morphogenetic fates (Umdifferenzierung) could not be accounted for by a mechanical model of development. Two outcomes are then examined: (1) the development of the first model of embryonic induction (Driesch 1894) coupled with a Neo-vitalistic epigenesis; (2) Oscar Hertwig's organicism, which combined principles of cell theory with a rejection of the use of mechanistic causality in biology. An epistemological analysis of experimental embryology's founding principles thus shows how a logic of discovery has structured the evolution of contemporary developmental biology by taking into account preformationist ideas and mechanistic models.

Pour limiter l'impact des activités humaines sur la biodiversité, les populations animales sont gérées dans de nombreux contextes. La gestion des populations animales comprend la conservation des espèces menacées, comme l’exploitation/régulation des espèces gibiers ou considérées nuisibles. Elle consiste à modifier la dynamique des populations soit en favorisant leur croissance, soit en réduisant leur abondance. Face à l’urgence d’agir dans un contexte de ressources financières limitées, une gestion efficiente des populations animales requiert une bonne compréhension de leur dynamique en réponse aux actions mises en œuvre. Durant mon doctorat, j’ai travaillé en partenariat avec des gestionnaires agissant sur deux systèmes biologiques : la conservation de rapaces méditerranéens (aigles de Bonelli et vautours percnoptères) et la régulation des densités de renards en paysage rural. Pour chaque système, mon travail a consisté i) en l’analyse des suivis de populations qui sont réalisés pour ii) évaluer l’effet de la gestion sur la dynamique des espèces gérées. Dans les deux contextes, j’ai pu iii) mettre en évidence la contribution de l’immigration à la croissance des populations menacées, comme à l’atténuation des effets de la régulation. Après iv) avoir extrait des recommandations pouvant améliorer l’efficience de la gestion en tenant compte de ces processus d’immigration, mon travail s’est conclu par v) une réflexion en retour sur l’optimisation des suivis de populations, afin qu’ils génèrent le plus d’informations pour un investissement moindre. Dans l’ensemble, ce travail aboutit à une réflexion sur les moyens favorisant une gestion efficiente des populations animales. / Due to the multiple interactions linking species together, human activities and animal species influence each other. Animal populations are therefore managed to favour long-term cohabitation. Wildlife management includes the conservation of endangered species, the harvest of game species and the control of species considered as pest. It consists in impacting population dynamics (density variation in a territory) either by favouring or limiting population growth. Faced with the complexity of ecological processes and the urgent need for acting in a context of decreasing allocated resources, an efficient management requires a precious understanding of population dynamics in response to actions. During my PhD, I collaborated with managers supervising two contrasted biological systems: the conservation of endangered Mediterranean raptors (Bonelli’s eagles and Egyptian vultures) and the control of fox densities in French rural landscapes. For each case of study, my work consisted in i) analysing data from population monitoring designed to ii) evaluate the management impact on population dynamics. In both systems, I highlighted iii) the crucial importance of immigration either in boosting endangered population or compensating for fox regulation. After having iv) derived concrete guidelines to improve management facing with immigration. I concluded my PhD by v) searching in turn for cost-effective designs of population monitoring. Overall, I questioned the contrasted systems I studied to understand pitfalls and solutions favouring an efficient management of animal populations.

Serotonin (5-hydroxytryptamine, 5-HT) as well as noradrenaline (NA) are key modulators of various fundamental brain functions including the control of appetite. While manipulations that alter brain serotoninergic signaling clearly affect body weight, studies implicating 5-HT transporters and NA transporters (5-HTT and NAT, respectively) as a main drug treatment target for human obesity have not been conclusive. The aim of this positron emission tomography (PET) study was to investigate how these central transporters are associated with changes of body weight after 6 months of dietary intervention or Roux-en-Y gastric bypass (RYGB) surgery in order to assess whether 5-HTT as well as NAT availability can predict weight loss and consequently treatment success. The study population consisted of two study cohorts using either the 5-HTT-selective radiotracer [11C]DASB to measure 5-HTT availability or the NAT-selective radiotracer [11C]MRB to assess NAT availability. Each group included non-obesity healthy participants, patients with severe obesity (body mass index, BMI, >35 kg/m2) following a conservative dietary program (diet) and patients undergoing RYGB surgery within a 6-month follow-up. Overall, changes in BMI were not associated with changes of both 5-HTT and NAT availability, while 5-HTT availability in the dorsal raphe nucleus (DRN) prior to intervention was associated with substantial BMI reduction after RYGB surgery and inversely related with modest BMI reduction after diet. Taken together, the data of our study indicate that 5-HTT and NAT are involved in the pathomechanism of obesity and have the potential to serve as predictors of treatment outcomes.

Bypass or resection of the stomach and oesophagus, has long been recognised to result in profound changes in the handling of ingested nutrients. This results in significant morbidity after radical surgery for oesophago-gastric cancer, in particular post-prandial hypoglycaemia, altered appetite, early satiety and noxious post-prandial symptoms. By profiling and challenging the gut hormone axis in healthy volunteers and patients who had undergone total or subtotal gastrectomy, or oesophagectomy, this thesis explores the possible causative mechanisms for the challenges faced by this patient population. In the surgical groups, an oral glucose tolerance test (OGTT) resulted in enhanced secretion of satiety and incretin gut hormones (GLP-1, GIP, PYY) and insulin, followed by hypoglycaemia in a cohort of patients. Continuous glucose monitoring of gastrectomy participants over two weeks of normal lifestyle identified an increased incidence of day and night time hypoglycaemia. RNAseq and mass spectrometry based peptidomics of human and murine enteroendocrine cells in the pre- and post-operative populations revealed no significant change in the underlying cellular pathways for nutrient sensing and gut hormone secretion, indicating that the altered hormone secretion is primarily driven by accelerated nutrient transit, rather than adaptive changes in the gut. Finally, specific blockade of the GLP-1 receptor in post-gastrectomy patients using Exendin 9-39 normalised insulin secretion and prevented reactive hypoglycaemia after an OGTT. In conclusion, profound changes in gut hormone secretion as a result of enhanced nutrient transit after foregut surgery likely underlie the early and late post-prandial symptoms seen in this group, and therapies specifically targeting the gut hormone axis, and GLP-1 in particular, could be the first targeted treatments for post-gastrectomy syndromes.

L'objectif de cette étude était d'évaluer la réaction des micromammifères et des oiseaux à quatre traitements sylvicoles différant dans leur intensité de récolte de bois dans la forêt boréale irrégulière, soit deux coupes de jardinage (60 et 73 % de rétention d' arbres), une coupe avec protection des petites tiges marchandes (CPPTM, 17-23 % de rétention d' arbres) et une coupe avec protection de la régénération et des sols (CPRS, <10 % de rétention d' arbres). Les communautés de micromammifères et d' oiseaux retrouvées dans les CPRS et les CPPTM étaient composées majoritairement d' espèces de milieux ouverts. Au contraire, les deux coupes de jardinage ont pu maintenir la plupart des espèces associées aux vieilles forêts, de sorte que les communautés retrouvées dans les peuplements ainsi traités -ressemblaient aux communautés animales des peuplements non coupés. Les coupes de jardinage représentent donc une avenue prometteuse pour maintenir, au moins à court terme, les communautés fauniques associées aux peuplements mûrs et surannés de la forêt boréale irrégulière.