Tesis sobre el tema "POSR"
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Maseko, Nokwanda Mantombame. "Perceived causes of poverty of the post-apartheid generation in a higher education institution / Nokwanda Mantombame Maseko". Thesis, North-West University, 2013. http://hdl.handle.net/10394/10682.
Texto completoMCom (Economics), North-West University, Vaal Triangle Campus, 2014
Arrault, Valérie. "Pour le réenchantement : peindre post-moderne". Paris 1, 1996. http://www.theses.fr/1996PA010576.
Texto completoThe study of my own paintings had to offer first an exploratory analysis of contemporary artistical feelings in order to provide a framework for understanding our approach. The introduction points out which aesthetics my painting could be linked with. In fact, in spite of many intra or extraartistical conditions in which a work of art can born, it appeared to me that one of the most important problems that a painter can meet with is the debate between modernism and post-modernism. These two aesthetics are closely interrelated, but none of them can reasanobly be separed from its philosophical, aesthetical frame. That is why i tried to bring out their concepts as they are the elements on which i found my work. That enabled me to presume that my own pratic, the aim of which is reenchantment, was nearer to post-modern aesthetics than modern aesthetics, as it is under the label of heterogeneous transhistoricity. Poietic is our method, the originality of which could - as it combines practice with theory - lead us to detect the different steps of the setting of a work in progress. Our study is composed of three chapters : "neo-baroque", "les cartes", "du kitsch", correlatively to the series each composed of four works. Concerning the style, crossbreeding has been appeared, as each work contains a nongeometrical abstraction as well as "illusionniste" figurative details
Bhat, Srikrishna. "Mots visuels pour le calcul de pose". Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00794630.
Texto completoRolin, Pierre. "Synthèse de vues pour l’initialisation de pose". Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0025/document.
Texto completoLocalisation is a central problem of computer vision which has numerous applications such as robotics or augmented reality. In this thesis we consider the problem of pose initialisation, which is pose computation without prior knowledge on the camera position. We are interested in pose computation from a single image and a point cloud that has been reconstructed from a set of images. As we do not have prior knowledge on the camera position, pose estimation entirely rely on finding correspondences between the image and the model. The search for these correspondences is a difficult problem because of its high combinatorial complexity. It can fail if the image is very different from the ones we used to construct the model, in particular when there is a large viewpoint change between them. This thesis proposes an approach to make matching possible in such difficult scenarios. It consists in synthesising locally the appearance of the scene from virtual viewpoints and add descriptors extracted from these synthetic views to the model. Because the scene model is a point cloud, the synthesis is not a 3D rendering but a local 2D transform of existing observations of the scene. The following contributions have been proposed. We study different transform models and show that homographic transformations are the best suited for this application. We define a method to position the virtual viewpoints with respect to a planar segmentation of the scene model. We ensure time efficiency by only synthesising useful views, i.e. views that are far from the existing one and don't overlap. Furthermore we verify that the synthesized surface is visible from the virtual viewpoint to avoid producing aberrant views due to occlusions. Finally, we propose a robust and time efficient method to research image-model correspondences. It uses geometric cues in a guided matching framework to efficiently identify sets of correct correspondences. Experimental results show that the proposed approach makes possible pose computation in situation where standard methods fail. In general the precision and repeatability of computed poses is significantly improved by the use of view synthesis. We also show that it also reduce the pose computation times by making image-model matching easier
Bhat, Srikrishna. "Mots visuels pour le calcul de pose". Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0001.
Texto completoWe address the problem of establishing point correspondences in images for computing camera pose through Perspective-n-Point (PnP) algorithm. We compute the 3D map i.e. 3D coordinates and visual characteristics of some of the points in the environment through an offline training stage using a set of training images. Given a new test image we apply PnP using the 2D coordinates of 3D points in the image detected by using the 3D map. During the training stage we cluster the SIFT descriptors extracted from training images to obtain 2D-tracks of some of the 3D points in the environment. Each 2D-track consists of a set of 2D image coordinates of a single 3D point in different training images. SfM (Structure from Motion) is performed on these 2D-tracks to obtain the coordinates of the corresponding 3D points. During the test stage, the SIFT descriptors associated the 2D-track of a 3D point is used to recognize the 3D point in a given image. The overall process is similar to visual word framework used in different fields of computer vision. During training, visual word formation is performed through clustering and during testing 3D points are identified through visual word recognition. We experiment with different clustering schemes (k-means and mean-shift) and propose a novel scheme for visual word formation for training stage. We use different matching rules including some of the popular supervised pattern classification methods to perform visual word recognition during test stage. We evaluate these various matching strategies in both stages. In order to achieve robustness against pose variation between train and test images, we explore different ways of incorporating SIFT descriptors extracted from synthetic views generated from the training images. We also propose an exact acceleration strategy for mean-shift computation
Rolin, Pierre. "Synthèse de vues pour l’initialisation de pose". Electronic Thesis or Diss., Université de Lorraine, 2017. http://www.theses.fr/2017LORR0025.
Texto completoLocalisation is a central problem of computer vision which has numerous applications such as robotics or augmented reality. In this thesis we consider the problem of pose initialisation, which is pose computation without prior knowledge on the camera position. We are interested in pose computation from a single image and a point cloud that has been reconstructed from a set of images. As we do not have prior knowledge on the camera position, pose estimation entirely rely on finding correspondences between the image and the model. The search for these correspondences is a difficult problem because of its high combinatorial complexity. It can fail if the image is very different from the ones we used to construct the model, in particular when there is a large viewpoint change between them. This thesis proposes an approach to make matching possible in such difficult scenarios. It consists in synthesising locally the appearance of the scene from virtual viewpoints and add descriptors extracted from these synthetic views to the model. Because the scene model is a point cloud, the synthesis is not a 3D rendering but a local 2D transform of existing observations of the scene. The following contributions have been proposed. We study different transform models and show that homographic transformations are the best suited for this application. We define a method to position the virtual viewpoints with respect to a planar segmentation of the scene model. We ensure time efficiency by only synthesising useful views, i.e. views that are far from the existing one and don't overlap. Furthermore we verify that the synthesized surface is visible from the virtual viewpoint to avoid producing aberrant views due to occlusions. Finally, we propose a robust and time efficient method to research image-model correspondences. It uses geometric cues in a guided matching framework to efficiently identify sets of correct correspondences. Experimental results show that the proposed approach makes possible pose computation in situation where standard methods fail. In general the precision and repeatability of computed poses is significantly improved by the use of view synthesis. We also show that it also reduce the pose computation times by making image-model matching easier
Kieu, Cong Toai. "Prétraitement et post-traitement pour le codec MPEG1". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/MQ40595.pdf.
Texto completoZijlstra, Timo. "Accélérateurs matériels sécurisés pour la cryptographie post-quantique". Thesis, Lorient, 2020. http://www.theses.fr/2020LORIS564.
Texto completoShor's quantum algorithm can be used to efficiently solve the integer factorisation problem and the discrete logarithm in certain groups. The security of the most commonly used public key cryptographic protocols relies on the conjectured hardness of exactly these mathematical problems. A sufficiently large quantum computer could therefore pose a threat to the confidentiality and authenticity of secure digital communication. Post quantum cryptography relies on mathematical problems that are computationally hard for quantum computers, such as Learning with Errors (LWE) and its variants RLWE and MLWE. In this thesis, we present and compare FPGA implementations of LWE, RLWE and MLWE based public key encryption algorithms. We discuss various trade-offs between security, computation time and hardware cost. The implementations are parallelized in order to obtain maximal speed-up. We show that MLWE has the best performance in terms of computation time and area utilization, and can be parallelized more efficiently than RLWE. We also discuss hardware security and propose countermeasures against side channel attacks for RLWE. We consider countermeasures from the state of the art, such as masking and blinding, and propose improvements to these algorithms. Moreover, we propose new countermeasures based on redundant number representation and the random shuffling of operations. All countermeasures are implemented on FPGA to compare their cost and computation time overhead. Our proposed protection based on redundant number representation is particularly flexible, in the sens that it can be implemented for various degrees of protection at various costs
Kieu, Cong Toai. "Prétraitement et post-traitement pour le codec MPEG1". Sherbrooke : Université de Sherbrooke, 1997.
Buscar texto completoMaciel, Vlayrton TomÃ. "CaracterizaÃÃo fisica, fisico-quÃmica e enzimÃtica de frutos de seis cultivares de coqueiro anÃo em diferentes estadios de desenvolvimento". Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1980.
Texto completoO presente trabalho objetivou caracterizar as alteraÃÃes fÃsicas nos frutos e fÃsico-quÃmicas, enzimÃticas e sensoriais na Ãgua de coco de seis cultivares de coqueiro anÃo em sete estÃdios de desenvolvimento. As cultivares analisadas foram: AnÃo Verde de Jequi (AVeJ), AnÃo Amarelo de Gramame (AAG), AnÃo Amarelo da MalÃsia (AAM), AnÃo Vermelho de CamarÃes (AVC), AnÃo Vermelho da MalÃsia (AVM), sendo os frutos colhidos em um campo experimental da Embrapa Meio Norte (ParnaÃba, PI) nos seguintes estÃdios de desenvolvimento: 126, 147, 168, 189, 210, 231, 252 dias apÃs a abertura da inflorescÃncia. Logo apÃs a colheita, os frutos foram conduzidos para o laboratÃrio de Fisiologia e Tecnologia de PÃs-colheita na Embrapa AgroindÃstria Tropical, em Fortaleza, CearÃ, onde foram feitas as anÃlises fÃsicas e fÃsico-quÃmicas. Parte das amostras foram armazenadas a -85ÂC e, em seguida, transportadas para o LaboratÃrio de Fisiologia Vegetal, do Departamento de BioquÃmica e Biologia Molecular da Universidade Federal do CearÃ, onde foram feitas as anÃlises enzimÃticas. O experimento seguiu um delineamento inteiramente casualizado, em esquema fatorial do tipo 6 x 7,. Foram feitas as caracterizaÃÃes fÃsicas individuais dos frutos (massa, comprimento maior, diÃmetro, volume da Ãgua e cor da casca), e em seguida, as avaliaÃÃes fÃsico-quÃmicas da Ãgua de coco: sÃlidos solÃveis totais (SS), aÃÃcares solÃveis totais (AST) e redutores (AR), acidez total titulÃvel (ATT), relaÃÃo SS/ATT, pH, turbidez e proteÃna). Foram, tambÃm, avaliadas as atividades das enzimas que oxidam fenÃis [polifenoloxidase (PFO) e peroxidase especÃfica para o guaiacol (G-POD)], bem como aquelas do ciclo do ascorbato-glutationa [dismutase do superÃxido (SOD), catalase (CAT) e peroxidase do ascorbato (APX)], sendo tambÃm determinados alguns atributos sensoriais da Ãgua de coco. Os resultados deste experimento mostraram que as cultivares AVM, AAG e AAM, podem ser exploradas comercialmente, devido Ãs qualidade fÃsicas e fÃsico-quÃmicas que apresentaram. Pode-se concluir tambÃm que, independente da cultivar, o melhor perÃodo para colheita encontra-se na faixa de 189 a 210 dias de desenvolvimento dos frutos, pois nesse perÃodo as cultivares analisadas apresentaram os melhores atributos de qualidade.. NÃo foi detectada atividade da G-POD na Ãgua de coco de nenhuma das cultivares. A atividade da SOD na Ãgua de coco aumentou nos estÃdios iniciais de desenvolvimento dos frutos de todas as cultivares, destacando-se as cultivares AVG e AVeJ como as que apresentaram maiores atividades dessa enzima. A CAT mostrou-se a principal enzima eliminadora de perÃxido de hidrogÃnio da Ãgua de coco e sua atividade variou muito com o desenvolvimento dos frutos e tambÃm entre as cultivares
This study aimed at characterizing in fruit and physico-chemical, and sensory enzyme in the coconut water the of six dwarf coconut cultivars at seven stages of development. The studied cultivars were: Green dwarf from Jequi (GDJ), yellow dwarf from Gramame (YDG), yellow dwarf from Malaysia (YDM), Red dwarf from Cameroon (YDC), Red dwarf from Malaysia (RDM), Red dwarf from Gramame (RDG). Fruits were harvested from an experimental field, Embrapa Meio Norte (Parnaiba city, Piauà State), at the following stages of development: 126, 147, 168, 189, 210, 231, and 252 days after the opening of the inflorescences. Upon harvest, fruits were taken to the Laboratory of Postharvest physiology and technology at Embrapa Agroindustria Tropical, located in Fortaleza, CearÃ, were the physical and physic-chemical analyses were performed. Part of the samples were stored at -85ÂC and then transported to the Laboratory of Plant Physiology, Biochemistry and Molecular Biology Department from The Federal University of CearÃ, were the enzymatic study was conducted. The experimental designed was a completely randomized one in a factorial scheme 6 x 7. First physical characterization (mass, length, diameter, water volume, and color of the shell) was individually performed for each fruit, then the physic-chemical analyses of coconut water: total soluble solids (TSS), total soluble sugar (TSSu), reducing sugars (RS), total titratable acidity (TTA), sugar to acid ratio (TSS/TTA), pH, turbidity, and protein. It was also evaluated the activities of enzymes that oxide phenols [polyphenoloxidase (PFO) and peroxidase specific for the guaiacol (G-POD)], as well as those of the cycle of ascorbate-glutathione [superoxide dismutase (SOD), catalase (CAT) and the ascorbate peroxidase (APX). Moreover some of the sensory aspects of the water were evaluated. The results showed that the YDR, YDG, and RDG may be commercially exploited, due to their physical and physic-chemical characteristics. It was also concluded that, the best time for harvesting is somewhat between 189 to 210 days after fruit developed set, since right at this time the studied cultivars presented the best quality attributes. There was detected activity of G-POD in the coconut water from any of the cultivars. The activity of SOD in the coconut water increased in the early stages of development of the fruits of all the cultivars, such as RDG and YDG cultivars such as those that showed higher enzyme activity. A CAT proved to be the main enzyme eliminating of hydrogen peroxide of coconut water and its activity varied greatly it the development of the fruit and also between the cultivars
Ostriitchouk, Olha. "Deux mémoires pour une identité en Ukraine post-soviétique". Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27430/27430.pdf.
Texto completoOstriïtchouk, Zazulya Olha. "Deux mémoires pour une identité en Ukraine post-soviétique". Doctoral thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21527.
Texto completoZoppitelli, Pierre. "Détection et caractérisation de zones de poser pour hélicoptères". Electronic Thesis or Diss., Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0053.
Texto completoDuring the last two decades, computer vision rapidly emerged from the shadows to become a hot topic in computer science. While progress has been made for the elaboration of autonomous cars and drones, the certification of a vision-based system doing the automatic guidance of a civil aircraft remains an ongoing challenge. The purpose of this thesis is the elaboration of computer vision algorithms for the automatic landing of a helicopter on an offshore platform. Our research was focused on the methods for the detection of the helicopter landing platform and the validation of the results. To achieve this goal, we proposed an algorithm based on the Hough transform which is able to perform in adverse conditions such as : partial occlusions, low contrast and grazing camera angles. We also developped a set of independant methods for the validation of the detection which enables the automatic rejection of almost every false positives. Lastly, we proposed some solutions to improve the computation performance of the Hough transform on CPU and GPU architectures, and thus achieve real-time performance on embedded systems
Azière, Laurent. "Rejet aigu après transplantation hépatique pour cirrhose post-hépatitique C". Bordeaux 2, 1999. http://www.theses.fr/1999BOR23010.
Texto completoKaim, Guillaume. "Cryptographie post-quantique pour la protection de la vie privée". Thesis, Rennes 1, 2020. http://www.theses.fr/2020REN1S077.
Texto completoThe past few years have seen the rising of the quantum computers, that are a serious threat to nearly all the actual cryptographic schemes used in practice. In this thesis we propose some new constructions to prevent this obsolescence by building our schemes on the mathematical tool of lattices that is assumed post-quantum resistant. We firstly develop a group signature scheme, allowing each member composing the group to anonymously sign on the behalf of the group. We add a supplementary property, which is the froward secrecy. This property cut the time in periods, such that each secret key is updated when entering a new period. We also propose a blind signature scheme, which is an interactive protocol between an user, who wants to sign a message, with a signer who possesses the signing secret key. We improve the state-of-the art by proposing a constructions without any restart and with a more efficient security. Finally as a use case of the blind signature, we develop an evoting protocol that take as a basis the construction described above
Durand, Guillermo. "Tests multiples et bornes post hoc pour des données hétérogènes". Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS289/document.
Texto completoThis manuscript presents my contributions in three areas of multiple testing where data heterogeneity can be exploited to better detect false null hypotheses or improve signal detection while controlling false positives: p-value weighting, discrete tests, and post hoc inference. First, a new class of data-driven weighting procedures, incorporating group structure and true null proportion estimators, is defined, and its False Discovery Rate (FDR) control is proven asymptotically. This procedure also achieves power optimality under some conditions on the proportion estimators. Secondly, new step-up and step-down procedures, tailored for discrete tests under independence, are designed to control the FDR for arbitrary p-value null marginals. Finally, new confidence bounds for post hoc inference (called post hoc bounds), tailored for the case where the signal is localized, are studied, and the associated optimal post hoc bounds are derived with a simple algorithm
Lira, Véliz Rosario. "Validez del indicador por diatomeas en muerte por asfixia de sumersión vital y por sumersión pasiva post morten". Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2014. https://hdl.handle.net/20.500.12672/8974.
Texto completoDetermina la validez del indicador diatomeas como prueba diagnóstica para diferenciar la muerte por asfixia de sumersión vital de la muerte por sumersión pasiva post morten; en cadáveres necropsiados en la Morgue Central de Lima durante el período 2008 al 2013. El tipo de estudio es observacional, descriptivo, analítico-comparativo. La muestra de estudio abarca 60 de 70 informes periciales de necropsia médico legal y muestra 60 de 70 informes periciales de biología forense donde se realiza toma de muestra para diatomeas; los 10 restantes son considerados no válidos por presentar datos incompletos. A la revisión de 50 resultados de exámenes de diatomeas en cadáveres necropsiados por asfixia de sumersión vital, se encuentran 35 exámenes de diatomeas con resultados positivos que hacen un 70% del total y 15 exámenes de diatomeas con resultados negativos que hacen un 30% del total. Las diatomeas se localizan con mayor frecuencia en pulmones e hígado con 15 (42.86%) de 35 necropsias por asfixia de sumersión vital con examen de diatomeas positivo. A la revisión de 10 resultados de exámenes de diatomeas en cadáveres necropsiados por sumersión pasiva post morten, se encuentran 7 exámenes de diatomeas con resultados positivos que hacen un 70% del total y 3 exámenes de diatomeas con resultados negativos que hacen un 30% del total. Las diatomeas se localizan con mayor frecuencia en pulmones con 7 (100%) de 7 necropsias por sumersión pasiva post morten con examen de diatomeas positivo. Para determinar la validez del indicador diatomeas se evalúa la sensibilidad que da un resultado de 70%, una especificidad de 30%, valor predictivo positivo de 85% y valor predictivo negativo de 15%. Concluye que el indicador diatomeas es válido como prueba diagnóstica para diferenciar la muerte por asfixia de sumersión vital de la muerte por sumersión pasiva post morten.
Trabajo académico
Anis, Elis Z. ea260703@ohio edu. "FRAMING CONFLICT NEWS IN POSO INDONESIA: A COMPARATIVE ANALYSIS OF THE MANADO POST, MAL, AND KOMPAS NEWSPAPERS". Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1149693291.
Texto completoPoiré, Pascal. "Conception d'un système de post-traitement vidéo pour un corrélateur optique". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0006/MQ42922.pdf.
Texto completoScandaroli, Glauco Garcia. "Fusion de données visuo-inertielles pour l'estimation de pose et l'autocalibrage". Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00861858.
Texto completoGlauco, Garcia Scandaroli. "Fusion de données visuo-inertielles pour l'estimation de pose et l'autocalibrage". Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00849384.
Texto completoLe, Quang Lam-Dong. "Prétraitement et son post-traitement adapté pour le codage basé DCT". Mémoire, Université de Sherbrooke, 2004. http://savoirs.usherbrooke.ca/handle/11143/1268.
Texto completoAbdelkaled, Houda. "Caractère bien posé probabiliste pour une équation non linéaire faiblement dispersive". Thesis, CY Cergy Paris Université, 2020. http://www.theses.fr/2020CYUN1075.
Texto completoWe propose in this thesis to study the propagation of non-linear wavesin the high frequency regime by methods from probability theoryand the theory of partial differential equations. We consider the cubic fractional wave equation, posed on a bounded domain of Euclidean space, with conditionsat the edge periodic. We will show to begin with, on which spaces this problem iswell-posed in Hadamard’s sense using fixed point methods. Then, we're going to proof high frequency instability results that shows thelimit of standard methods. Finally, we will consider building probabilistic measures on the space of the initial data such as in the context of the instability results, a well-posedness form persists, almost surely
Moatty, Annabelle. "Pour une Géographie des reconstructions post-catastrophe : risques, sociétés et territoires". Thesis, Montpellier 3, 2015. http://www.theses.fr/2015MON30047/document.
Texto completoThe post-disaster reconstruction has emerged relatively recently in the hazards’ scientific literature. It has long been, in France and in developed countries, as if the amounts of money drained by the compensation process and solidarity were sufficient to recover efficiently. However the recurrence of disasters, sometimes in the same territories, questioned the effectiveness of preventive logic. Our approach of the reconstruction is systemic and aims at analyzing the interactions between risk, societies and territories. The study of the reconstruction process periods through a medium and long-term feedback allows to define the operating rules, and to define "good and bad practices" regarding the objectives of risk reduction and sustainable development. The lack of anticipation, the several uncertainties and the emergency in which the decisions are taken are leading, in many cases, to risk persistence and to increase the social gaps. When preventive ethics is integrated into the process remains punctual and marginal, the rule being the reproduction of existing socio-spatial systems. The reconstruction process does not start from a "zero state", it is subject to territorial and political constraints, and must lead to make an appropriate response to the needs of affected communities. Thus, in order to make the post-disaster reconstruction a preventive opportunity, an anticipatory effort is needed - though necessarily limited - it must be accompanied by an ex post planning
Paillereau, Audrey Linet Teddy. "Embolisation artérielle pour hémorragie du post-partum implications sur la fertilité /". [S.l.] : [s.n.], 2006. http://theses.univ-nantes.fr/thesemed/SFpaillereau.pdf.
Texto completoHerscovici-Schiller, Olivier. "Analyse et correction de surface d’onde post-coronographique pour l’imagerie d’exoplanètes". Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEO022/document.
Texto completoExoplanet imaging has two intrinsic limitations, namely the small angular separation between the star and the planet, and the very low light flux from the planet compared to the starlight. The first limitation is overcome by using very large telescopes of the ten-metre diameter class, and, for ground-based telescopes, adaptive optics systems, which allow high angular resolution imaging. The second limitation is overcome by using a coronagraph. Coronagraphs are optical devices which filter the starlight while granting passage to the light coming from the stellar environment. However, any optical aberration upstream of the coronagraph causes some of the starlight to leak through the coronagraph. This unfiltered starlight in turn causes speckles in the scientific images, and the light of the planets that could be there is lost among the speckles. Consequently, measurement and correction of the quasi-static aberration which generate the speckles are necessary for the exoplanet imagers to achieve their full potential. This thesis introduces theoretical, numerical, and experimental contributions to the topic of measurement and correction of the aberrations in coronagraphic imagers. The first part describes the context and introduces coronagraphic phase diversity, which is a Bayesian inverse problem formalism for post-coronagraphic wave-front sensing. The second part is focused on ground-based imaging. It introduces an analytic expression for coronagraphic imaging through turbulence, the extension of coronagraphic phase diversity to on-sky measurement through residual turbulence, and a laboratory validation of the extended method. The third part is concerned with future high-contrast space-based imagers, which will require not only phase correction, but a full complex wave-front correction. It presents the laboratory validation of coronagraphic phase diversity as a post-coronagraphic complex wave-front sensor, and first results of active contrast enhancement in the focal plane through thecreation of a non-linear dark hole
Braham, Mahmoud. "Dépenses militaires américaines post-Guerre Froide, 1989-2014 : pour quelle défense ?" Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAE002.
Texto completoIf, during the Cold War, the colossal U.S military expenditures were justified by an existential threat against the United States and their allies, the collapse of the communist camp and ideology, followed by the disintegration of the Soviet Union, should have pushed to revising downward those spending or, at least, brought them down to proportional levels, commensurate with the new international security landscape. This study, which falls within the scope of Defense Economics and which is centered on exploring the genuine rationales and determinants of the U.S. post-Cold War military spending, suggests that they seem serving purposes (needs) other than the constitutional function of defending the American Nation, which are those linked to preserving the interests of the political, economic and military elites (an alliance of interest creating a state of chronic and irreversible dependency of the U.S. economy on the Defense spending). Henceforth, those spending are articulated, in our own point of view, on the projection of the military power abroad, serving to achieve a global geopolitical and geo-economic hegemony and not the “common defense”
Dias, Susana Oliveira 1973. "Papelar o pedagogico... : escrita, tempo e vida por entre imprensas e ciencias". [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/251817.
Texto completoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Educação
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Resumo: Seres. Objetos. Conteúdos. Corpos. Palavras. Imagens. Discursos. Proposições. Linguagens. Recusar a parada no ser dos corpos, desviar sucessivamente da observação dos corpos. Recusar a parada no ser das linguagens, desviar das interpretações subjetivas daquele que vê, relata, aproveita, experimenta. Resistir a separar corpos e linguagens e escolher a articulação corpo-linguagem. Essas escolhas movimentam o papelar deste papel-pesquisa por entre ciências, imprensas e educação. Traz à tona a violência do mundo dos signos do papel imprensa: velocidade, atualidade, veracidade, objetividade. Signos que fixam identidades do papel imprensa e mantêm a educação submetida à comunicação-recognição, à política representacional, à incorporação do tempo cronológico. Papel-máquina. No encontro com imagens as mais diversas, e produzidas pelos papéis-mídias, emerge uma violência de outra natureza: a violência afirmativa de que o papel não é nada, não significa nada, não representa nada. Uma força de esvaziamento que abre para um devir-qualquer-coisa do papel. A possibilidade de que o papel imprensa possa, além de repetir a vida, gerar uma vida nova, além do visível, além do vivido. Uma repetição distinta, capaz de extravasar a diferença. Suspendendo a sentença de morte que atravessa as passagens dos seres-objetos do mundo ao papel. Abertura para um tempo-acontecimento, incorporal que se efetua numa experimentação de uma fabulosa Escrita-vida, desde dentro do papel-máquina, que possa fazer com que ciências, imprensas e educação sofram os abalos sísmicos da criação, e das forças que sob ela se agitam. Fazer do papel algo novo: objeto de liberdade. Lançar a tese neste vento foi um convite que os esvoaçantes encontros-sopros com Gilles Deleuze, Félix Guattari, Antonio Carlos Amorim e o grupo do Humor Aquoso movimentaram. Vento que invadiu a escrita e arrastou outros encontros: Kleist, Verbos, Ossos, Artigos, Lewis Carrol, Corra Lola, Corra, Substantivos, Manoel de Barros, Gatos, Borges, Relógios, Remedios Varo, Conectivos, Gritos, Clarice Lispector, Walmor Corrêa, Pássaros, Marli Wunder, Marguerite Youcenar, Ricardo Aleixo, Dinossauros, Papéis
Abstract: Beings. Objects. Contents. Corpus. Words. Images. Speeches. Propositions. Languages. To refuse being stopped at the being of the corpus, successively veering off from the observation of the corpus. To refuse being stopped at the being of the languages, veering off from the subjective interpretations from whom sees, reports, takes advantage, tries. Resisting separating corpus and languages and choosing the articulation corpus-language. Those choices compel the papering of this paper-research among sciences, presses and education. It brings to the surface the violence of the world of the signs in the role of the press: speed, present time, truthfulness, objectivity. Signs that fasten identities of the paper press and maintain the education submitted to the communication-recognition, to the representational politics, to the chronological time incorporation. Paper-machine. In the meeting with the most several images, and produced by the paper-media, a violence of another nature emerges: an affirmative violence that the paper is not anything, it doesn't mean anything, it doesn't represent anything. An emptying force that opens for a devir-any-thing of the paper. The possibility that the paper press can generate a new life, beyond being a repetition of life. A new life beyond the visible, the already lived. A distinctive repetition, capable to extravasate the difference. Suspending the death sentence that crosses the transit of the beings-objects from the world to the paper. Opening for an in corporal time-event, that takes place in an experimentation of a fabulous Writing-life, from inside of the papermachine, that can make sciences, presses and education suffer the earth quakes of the creation and of the forces that are swaying under it. To do something new to the paper: object of freedom. To launch the thesis into this wind was an invitation that the billowing meetings-blows with Gilles Deleuze, Félix Guattari, Antonio Carlos Amorim and the group of the Aqueous Humor had moved. Wind that invaded the writing and dragged other meetings: Kleist, Verbs, Bones, Goods, Lewis Carrol, Run Lola, Run, Nouns, Manoel of Barros, Cats, Borges, Clocks, Medicines Pierce, Conectivos, Screams, Clarice Lispector, Walmor Corrêa, Birds, Marli Wunder, Marguerite Youcenar, Ricardo Aleixo, Dinosaurs, Papers
Doutorado
Educação, Conhecimento, Linguagem e Arte
Doutor em Educação
Oliveira, Renato Salgado de Melo 1984. "Histórias do mar = divagação científica, biotecnologias e RPG". [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/271037.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem
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Resumo: Aqui nos lançamos por entre o RPG (Role Playing Game), a divulgação científica e as biotecnologias - e nos perdemos. Mesmo quando queremos, não é fácil encontrar um caminho: às vezes precisamos singrar contra as palavras, contra os conceitos; pensar é, de certa forma, sangrar. Há ainda outro tipo de esforço, tão difícil quanto, que é quando não queremos encontrar um caminho, pois nos bastam os encontros e desencontros. Ou mais difícil ainda: descobrir um jeito de contar tudo depois - inventar pela escrita tantas coisas que não imaginamos dessa forma. E, para isso, inventei de escovar narrativas, rabiscá-las e desmanchá-las ao meu prazer. Das narrativas escorrem um RPG com vontade de divagar, dispersar - divagação científica - outra vereda que se bifurca da divulgação. Bifurca em movimento, em velocidades, buscando trair o máximo das promessas de amor eterno que os cientistas e jornalistas fizeram à verdade. Trair até que não funcione mais - ferramenta quebrada, utensílio inútil. Uma dissertação pirata, feita de pilhagens e roubos. Rouba-se de poetas, de escritores, de acadêmicos, até mesmo do próprio RPG. Rouba-se, pois é assim que se joga o próprio RPG: tirando um pedaço de cada canto, sem se preocupar com a fidelidade em relação à origem. Investir na potência do fragmento que nos leva a um futuro que falta, que não está dado. E não para aprisioná-lo em um sentido que faz do contexto de origem um clichê. Não se trata de consertar o mundo, portanto não se propõe o RPG como ferramenta. É outra vontade, de fazer das coisas ruínas - quebrar aquilo que sobrou inteiro. Até mesmo o real. Uma vontade da ruína do real, que não faz da representação a sua unidade, mas da invenção a sua pulverização. Um RPG que não quer representar o real, mas inventar infinitas possibilidades de mundos. Uma pesquisa que não quer olhar a fabulação de frente (quais não seriam os perigos de fazê-lo?), mas, simplesmente, fabular
Abstract: Here we launched ourselves through the RPG (Role Playing Game), the popularization of science and the biotechnologies - and we lost ourselves. Even when we want, is not easy to find a way: sometimes we need to sail against the words, against the concepts. Thinking is somehow/somewhat bleed. There is another type of effort as difficult too, that is when we not want to find a way, because the meetings and disagreements are enough for us. Either more difficult is: finding a way to tell everything after all - to invent by writing many things which we haven't imagined by this way. Therefore, I have invented to brush narratives, scribble them and tearing them by my own pleasure. Some type of RPG leak of the narratives with a want of to digress, to disperse - scientific digression - another pathway that bifurcates from scientific divulgation. Bifurcate on moving, speeds, trying to betray the promises of eternal love that most scientists and journalists have made for/with the truth. Betraying until it doesn't work any more - broken tool, utensil useless. A pirate dissertation, made of lootings and thefts. Steal it from poets, writers, scholars, even of RPG. Steal it, because that's how you play the RPG itself: taking one piece at each corner without worrying about fidelity to the origin. Investing in the power of the fragment that leads us to a future that is missing, which is not given. And not to imprison it in a way that makes the original context a cliché. This is not about to fix the world, so it is not proposed the RPG like a tool. It is another will, to make ruins with the things - to break what is left over. Even the real. A desire to ruin the real, which makes of representation their unity, but his invention of the spray. A RPG is (is?) not to represent reality but to invent the world of infinite possibilities. We did not want to look at the fable from the front (which would not be the dangers of doing so?), but simply fable
Mestrado
Divulgação Científica e Cultural
Mestre em Divulgação Científica e Cultural
Do, Viet Ha. "Réducteurs de bruit adaptatifs spatiaux et post-traitement pour codec MPEG-2". Mémoire, Université de Sherbrooke, 2000. http://savoirs.usherbrooke.ca/handle/11143/1081.
Texto completoVan, der Putten Nathalie. "Paléoécologie et paléoclimatologie des îles sub-Antarctiques pour la période post-pléniglaciaire". Aix-Marseille 3, 2008. http://www.theses.fr/2008AIX30061.
Texto completoThe main aim of this thesis (Part I) is to produce new palaeoclimatic data, which may give more insight into the climate history for the post-glacial period of the sub-Antarctic region, which is considered as a particular one in the context of the global climate system. The research strategy is based on a botanical macrofossil record from organic sediment cores (peat cores) of two sub-Antarctic islands, South Georgia and Ile de la Possession (Iles Crozet). The proxy data revealed clear palaeoenvironmental and palaeoclimatic changes for both islands, which could be correlated with widespread climate events. Part II treats the methodological aspect of pollen analysis as a proxy for inferring climate change in the specific context of sub-Antarctic islands. Part III consists in a discussion on the origin of the sub-Antarctic flora from a palaeobotanical point of view
LI, HAIJIANG. "Post-osa, une architecture des telecommunications pour l'ingenierie des services integres ouverts". Paris 6, 1996. http://www.theses.fr/1996PA066257.
Texto completoPrevoteau, Sébastien. "L’œil post-moderne : pour une approche psycho-historique de l'oeuvre d'art contemporain". Paris 10, 2006. http://www.theses.fr/2006PA100191.
Texto completoSituated within the discourse of art and psychoanalysis, this work weaves links between the work of Marcel Duchamp and the teaching of Jacques Lacan following three lines of thought. With respect to the forms particular to their relative fields of thought, a parallel approach to language as instance pre-existent to the advent of the spoken subject, can be found in both the artist and the psychoanalyst. The tentative of a new duchampian language perfected in the ready-mades, rejoins the lacanian foundation of a structurel subconscious such as a language. The second line of thought centres on a parallel between the Duchamp's concept of inframince and that of Lacan's object a, both originating from a singular approach to Pleasure and a redefinition of the visual field. Interstitial entity or unrepresentable 'rest' of the subjective division, these notions point to an empty space as motor of desire and lead us to think in new terms about the relation of the subject to the object viewed. Relation established in the devices `Étant donnés 1 ° La chute d'eau, 2° Le gaz d'éclairage' which no longer position the spectator in front of the painting but in the space which seizes him, conforming to the notion of the lacanian 'painting' in the developments linked to perspective, projective geometry and topology that the last line of thought proposes to couple with the duchampienne body of work. Duchamp experienced a reversa) of vision which offers us an elaboration of fantasy such as Lacan theorises under the form of an equation linking the subject and the object
Loisel, Françoise. "Hypothalamie et athalamie post-trabéculectomie : intérêt de la pose d'une lentille hydrophile". Caen, 1990. http://www.theses.fr/1990CAEN3042.
Texto completoDo, Viet Ha. "Réducteurs de bruit adaptatifs spatiaux et post-traitement pour codec MPEG-2". Sherbrooke : Université de Sherbrooke, 2000.
Buscar texto completoBrégier, Romain. "Détection et estimation de pose d'instances d'objet rigide pour la manipulation robotisée". Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM039.
Texto completoVisual object detection and estimation of their poses -- i.e. position and orientation for a rigid object -- is of utmost interest for automatic scene understanding.In this thesis, we address this topic through the bin-picking scenario, in which instances of a rigid object have to be automatically detected and localized in bulk, so as to be manipulated by a robot for various industrial tasks such as machine feeding, assembling, packing, etc.To this aim, we propose a novel method for object detection and pose estimation given an input depth image, based on the aggregation of local predictions through an Hough forest technique, that is suitable with industrial constraints of performance and ease of use.Overcoming limitations of existing approaches that assume objects not to have any proper symmetries, we develop a theoretical and practical framework enabling us to consider any physical rigid object, thanks to a novel definition of the notion of pose and an associated distance.This framework provides tools to deal with poses efficiently for operations such as pose averaging or neighborhood queries, and is based on rigorous mathematical developments.Evaluation benchmarks used in the literature are not very representative of our application scenario and suffer from some intrinsic limitations, therefore we formalize a methodology suited for scenes in which many object instances, partially occluded, in arbitrary poses may be considered. We apply this methodology on real and synthetic data, and demonstrate the soundness of our approach compared to the state of the art
Fosse, Julien. "Valeur informative d'indicateurs ante et post-mortem pour la détection des dangers biologiques pour le consommateur de viande porcine". Phd thesis, Université Rennes 1, 2008. http://tel.archives-ouvertes.fr/tel-00437076.
Texto completoVan, der Westhuizen Loraine. "Die representasie van 'wit' armoede in Afrikaanse jeugliteratuur". Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62664.
Texto completoDie representasie van "wit" armoede in Afrikaanse jeugliteratuur tussen 1990 en 2009 word in hierdie studie ondersoek. Die romans wat bestudeer word, is Droomwa (1990) deur Barrie Hough, Die optog van die aftjoppers (1994) deur George Weideman, Vaselinetjie (2004) deur Anoeschka von Meck, Roepman (2004) deur Jan van Tonder, Lien se lankstaanskoene (2008) deur Derick van der Walt en Lammervanger (2009) deur Frans van Rensburg. Kritiese witheidstudies is die oorkoepelende teoretiese raamwerk waarbinne die romans ontleed word. Die merkers van die "wit" karakters se armoede word ten opsigte van beskrywing, dialoog, optrede, ruimte en vertelling geïdentifiseer met die doel om vas te stel hoe en hoekom "wit" armoede in die tekste gerepresenteer word. Die prominentste merker van die karakters se armoede is die ruimte waarin hulle bly. Ander merkers is voorkoms, besittings, dialoog en optrede. In geen van die romans word die karakters se armoede eksplisiet deur die vertelinstansie aangedui nie. Die karakters se "witheid" word grotendeels in die ses romans as vanselfsprekend aangebied. Tesame met hierdie vanselfsprekendheid is daar besliste elemente van "wit" bevoorregting in die uitbeelding van "wit" armoede in die tekste teenwoordig. Die relatiwiteit van die "wit" karakters se armoede word duidelik deur die geleenthede waartoe hulle ten spyte van hul armoede toegang het; hierdie geleenthede stel meeste van die karakters in staat om hul armoede te verlig of daarvan verlos te word aan die einde van die romans. Die implikasies van "witheid" is op verskillende vlakke in die romans waarneembaar en verleen ook aan die karakters die illusie dat hulle, in meeste van die romans, tot die "swart" karakters se redding moet kom. Sleutelterme
Dissertation (MA)--University of Pretoria, 2017.
Afrikaans
MA
Unrestricted
Tonetti, Adriano Luiz 1973. "Pos-tratamento de efluente anaerobio por filtros de areia". [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258247.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo
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Resumo: O objetivo deste projeto foi estudar os filtros de areia como um método de baixo custo para o pós-tratamento de filtros anaeróbios alimentados com esgoto sanitário. Nesta pesquisa buscou-se contribuir com o desenvolvimento deste sistema avaliando-se a eficiência de tratamento de quatro filtros de areia com diferentes profundidades de leitos (0,25; 0,50, 0,75 e 1,00 m). A alimentação era proveniente de reatores anaeróbios e foram empregadas cinco cargas diferentes de aplicação (20, 40, 60, 80 e 100 Lm-2). Cada uma delas dispostas diariamente pelo período de um mês. O esgoto bruto, afluente e efluente dos filtros de areia foram analisados semanalmente, permitindo constatar que no emprego de baixas cargas de efluente anaeróbio o sistema propiciava uma remoção superior a 96% da DBO, adequação na emissão de coliformes totais e completa nitrificação. Aumentando-se as cargas, ocorria uma pequena redução da eficiência, no entanto os resultados ainda eram satisfatórios
Abstract: The aim of this project was to study sand filters as a low cost method in the post treatment of upflow anaerobic filter effluent, fed by municipal wastewater. This research intends to contribute with the development of this system estimating the efficiency of the treatment of four sand filters with different depths of the sand layer (0,25; 0,50, 0,75 e 1,00 m). The feed (I think it's influent) was from the four upflow anaerobic filters. Five hydraulic loads (20, 40, 60, 80 e 100 Lm-2) were used to apply the effluent on the sand filters. Each one was applied for one month and later the frequency was increased for two and tree times per day. The municipal wastewater, influent and the effluent of the sand filter were weekly analyzed allowing to conclude that the treatment system had good removal of BOD, COD, TOC, nutrients and microorganisms like total and fecal coli forms. The effluent was good to be disposed or to reused.
Mestrado
Saneamento e Ambiente
Mestre em Engenharia Civil
Benakouche, Rabah. "Décision d'innovation : éléments pour une intégration des modèles ex post et ex ante". Châtenay-Malabry, Ecole centrale de Paris, 1993. http://www.theses.fr/1993ECAP0340.
Texto completoChicoski, Regina [UNESP]. "Eros e Tanatos no discurso labiríntico de Valêncio Xavier". Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/106352.
Texto completoCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O objeto de estudo da pesquisa é a obra O mez da grippe e outros livros (1998) de Valêncio Xavier, escritor contemporâneo influenciado pelas artes visuais, fascinado pela imagem e por textos híbridos. A produção literária labiríntica, eclética está alicerçada nos princípios da montagem cinematográfica, na colagem e na intertextualidade. A vocação multitextual do autor leva-o a construir textos descontínuos, polifônicos, multidiscursivos. De modo não linear, incorpora vários códigos que se entrelaçam formando um mosaico, um caleidoscópio literário. A obra é analisada à luz de referências sobre o pós-modernismo, a fim de discutir a relação entre erotismo e morte na ficção de Xavier.
The research is focused on Valêncio Xavier's O mez da grippe e outros livros (1998, The influenza month and other books). Xavier is a contemporary writer who is influenced by the visual arts and is fascinated by the image and by hybrid texts. His eclectic literary production resembles a labyrinth and is supported by the principles of cinematic assemblage, collage and intertextuality. The author's vocation leads him to produce texts that are marked by discontinuity, polyphonic and multi-discursiveness. The result of the juxtaposition of the various codes that he appropriates in a non-linear fashion is a mosaic, a literary caleidoscope. The works are read in light of references about post-modernism, so as to discuss the relation between eroticism and death in Xavier's fiction.
Mello, Paula Sampaio de 1987. "Analgesia preemptiva com dexametasona ou ibuprofeno em tratamentos e retratamentos endodônticos com ampliação foraminal". [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289069.
Texto completoDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: Analgesia preemptiva é um regime analgésico instituído antes da lesão tecidual, porém sua eficácia na clínica endodôntica ainda é controversa. Este estudo avaliou se a dexametasona e o ibuprofeno promovem analgesia preemptiva em tratamentos ou retratamentos endodônticos, se comparados a um placebo, quando empregada a técnica de instrumentação do sistema de canais radiculares em que se trabalha 1 mm além do comprimento real do dente (ampliação foraminal). Para tal, 97 sujeitos foram divididos aleatoriamente em três grupos e tratados com dose única de 4 mg de dexametasona ou 600 mg de ibuprofeno ou placebo, via oral, 30 minutos antes da intervenção, de forma duplo cega. Ao fim do procedimento, os voluntários foram orientados a fazer uso de uma medicação analgésica de resgate (paracetamol 750 mg), somente em caso de dor. Foi anotado o período de tempo decorrido desde o final da intervenção até a tomada do primeiro comprimido de analgésico, além do consumo total desta medicação no período pós-operatório. A incidência e intensidade de dor foram avaliadas por meio de duas escalas analógicas, descritiva e numérica, preenchidas nos tempos de 4, 6 e 24 horas pós-operatórias. O período de tempo decorrido para a tomada do primeiro comprimido analgésico foi menor no grupo placebo (p<0,0001; teste de Kruskal-Wallis), enquanto que o consumo de comprimidos no período pós-operatório foi maior (p<0,0001; teste de Kruskal-Wallis). Com relação a estes mesmos parâmetros, não foram encontradas diferenças estatisticamente significantes entre os grupos tratados com a dexametasona ou ibuprofeno. Por sua vez, estes medicamentos promoveram uma redução significativa da dor pós-operatória nos tempos de 4 e 6 horas. Considerando a escala analógica descritiva, houve uma menor proporção de indivíduos com dor (leve e moderada) nos grupos tratados, em comparação ao grupo placebo. De acordo com a escala analógica numérica, também promoveram menores valores que o placebo. Não foi encontrada nenhuma diferença estatisticamente significante entre os três grupos após 24 horas, em nenhuma das duas escalas avaliadas. Conclui-se que a dexametasona e o ibuprofeno promovem analgesia preemptiva, reduzem a incidência de dor e a necessidade do uso de analgésicos após tratamentos e retratamentos endodônticos de elementos dentários assintomáticos, quando empregada a técnica de instrumentação do sistema de canais radiculares por meio de patência e ampliação dos forames apicais
Abstract: Preemptive analgesia is an analgesic regimen initiated before the onset of tissue trauma, however its efficacy on endodontic clinic is still controversial. This work evaluated whether dexamethasone and ibuprophen promote preemptive analgesia on endodontic treatments and retreatments, when compared to a placebo, when the radicular canals system instrumentation technique is employed, working 1mm beyond the real tooth length (foraminal enlargement). For this matter, 97 subjects were randomly divided into three groups and treated with a single dose of 4 mg of dexamethasone or 600 mg of ibuprofen or placebo, orally, 30 minutes before intervention, double-blinded. By the end of the procedure, volunteers were oriented to use a rescue analgesic medication (paracetamol 750 mg), only in case of pain. Notes were taken of the time period from the end of the intervention to the moment when the first pill was taken and also of the amount of medication taken during the post-operative period. The pain incidence and intensity were evaluated through two analog scales, descriptive and numerical, which were filled 4, 6 and 24 hours after the intervention. The time period until the first analgesic pill was taken was shorter for the placebo group (p<0,0001; Kruskal-Wallis test), while the consume of pills in the post-operative period was greater (p<0,0001; Kruskal-Wallis test). Considering these same parameters, no statistically significant differences were found among the groups that were treated with dexamethasone or ibuprofen. Nevertheless, these medications promoted a significant reduction of the post-operative pain after 4 and 6 hours. Considering the descriptive analogue scale, there has been a smaller proportion of patients with pain (either mild or moderate) in the groups that were treated, when comparing to the placebo group. According to the numerical analogue scale, they also promoted smaller values than the placebo. No statistically significant difference was found among the three groups after 24 hours, in any of the two evaluated scales. It may then be concluded that dexamethasone and ibuprofen promote preemptive analgesia, reduce the incidence of pain and the need of using analgesics after endodontic treatments and retreatments of the asymptomatic dental elements, when the radicular canal system instrumentation technique is employed through patency and enlargement of the apical foramens
Mestrado
Farmacologia, Anestesiologia e Terapeutica
Mestra em Odontologia
Pinto, Luiz Gustavo. "Efeito do exercício aeróbico sobre a resposta fisiológica à hiperinsulinemia aguda em mulheres pós-menopausadas em uso ou não de terapia estrogênica". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-12042010-143049/.
Texto completoINTRODUCTION: Acute insulin infusion, simulating a high carbohydrate lunch, increases sympathetic neural activity (SNA) and blood flow (BF), leading to an increase in systolic blood pressure (SBP) and not changing diastolic blood pressure (DBP) in postmenopausal women. Moreover, in this population, the execution of one exercise bout decrease SNA and increase BF, promoting a decrease in post-exercise blood pressure levels. However, the acute effects of this exercise on physiological responses to hiperinsulinemy were not studied in post-menopausal women, who may be using or not estrogen therapy (ET). OBJECTIVE: To analyze the acute effects of previous aerobic exercise on insulin sensitivity (IS) and the SBP, DBP, ANS, muscle BF and heart rate (HR) measured in baseline under conditions and in response to insulin infusion in postmenopausal histeroctomyzed women, who were receiving ET or not. METHODS: 13 women were randomized into 2 groups: 7 received ET (estradiol valerate, 1mg/dia) and 6 placebo. After 6 months, both groups performed 2 experimental sessions: exercise (cyclergometer, 45 min, 50%VO2peak) and rest (60 min seated). One hour after sessions, blood pressure (oscilometric), BF (pletsmography) and HR (ECG) were measured in the supine position for 10 min. After that, an euglicemic/hiperinsulinemic clamp was performed (120 min, 100 U/ml), and these variables were measured in steady-state period. RESULTS: IS was similar between groups in both sessions. Estrogen therapy did not affect blood pressure and heart rate responses to exercise and to hiperinsulinemia. Therefore, in rest session, in both groups, insulin infusion increased SBP (141±4 vs 147±6 mmHg), DBP (74±3 vs 79±3 mmHg), and HR (66±3 vs 70±3 beats/min). Previous exercise decreased blood pressure levels in baseline condition and during insulin infusion, and attenuated the increase in DBP during infusion. Moreover, previous exercise increased baselçine HR, and attenuated its increase during insulin infusion. BF increased with insulin infusion only in the group who received ET in the rest session (2.07±0.24 vs 3.16±0.38 ml.min-1.100ml-1), and in this group, previous exercise tended to increase baseline BF (2.07± 0.24 vs 2.83± 0.76 ml.min-1.100ml-1,P=0.06). CONCLUSION: In post-menopausal healthy women, one aerobic exercise bout decreased BP and increased HR, attenuating the increase in DBP and HR during insulin infusion. Moreover, in women that were receiving ET, one exercise bout tended to promote vasodilation, and improved the vasodilation induced by insulin. This responses ocurred even with no change in IS
Lengoumbi, Carle. "Accès multiple OFDMA pour les systèmes cellulaires post 3G : allocation de ressources et ordonnancement". Phd thesis, Télécom ParisTech, 2008. http://pastel.archives-ouvertes.fr/pastel-00003747.
Texto completoBailly, Kévin. "Méthodes d'apprentissage pour l'estimation de la pose de la tête dans des images monoculaires". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2010. http://tel.archives-ouvertes.fr/tel-00560836.
Texto completoPotet, Marion. "Vers l'intégration de post-éditions d'utilisateurs pour améliorer les systèmes de traduction automatiques probabilistes". Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00995104.
Texto completoMisago, Chizuru. "Preventing induced abortion among urban poor in Fortaleza, Brazil : is post-abortion counselling effective?" Thesis, London School of Hygiene and Tropical Medicine (University of London), 1998. http://researchonline.lshtm.ac.uk/682280/.
Texto completoGaly, Alain. "La nalbuphine, pour l'analgésie post opératoire chez l'enfant, administration intra veineuse et intra rectale". Montpellier 1, 1991. http://www.theses.fr/1991MON11117.
Texto completoJAMET, SERGE. "Les sarcomes post-radiques de la region thoracique apres irradiation pour cancer du sein". Nice, 1988. http://www.theses.fr/1988NICE6519.
Texto completoGradwohl, Marion. "Développement d’une bioprothèse résorbable par impression 3D pour une reconstruction mammaire autologue post-mastectomie". Thesis, Université de Lille (2018-2021), 2021. https://pepite-depot.univ-lille.fr/.
Texto completoMastectomy is one of the most common way to treat breast cancer, it consists in the removal of breast tissue to remove tumor cells. This surgical act causes a consequent loss of tissue and can then be followed by a breast reconstruction operation to fill in the missing volume. Implant based or autologous fat grafting (fat flap or lipofilling) are some of breast reconstruction method, however they all have advantages and drawbacks. Tissue engineering chamber (TEC) using fat flap from the patient’s own tissue could be a promising solution to restore large volume of mature and vascularized adipose tissue and a therapeutic alternative to current breast reconstruction techniques.The main objective of this thesis it to improve TEC by using additive manufacturing and bioabsorbable polymers. The use of bioresorbable thermoplastic polymers eliminates the need for a second surgery, which would consist of removing the implant after breast reconstruction. In addition, using 3D printing to manufacture the TEC will allow patients to be offered tailor-made implants adapted to their morphology and therefore improve the aesthetic aspect of the reconstruction.The study first focused on the choice of an additive manufacturing process and a sterilization method for the development of the implant to minimize the degradation of the selected biomaterials. Fused Filament Fabrication (FFF) as well as ethylene oxide sterilization were chosen as means of producing the final sterile device. An in vitro degradation study was then carried out to determine the resorption profiles of PLGA and PLCL. Finally, an in vivo study was carried out on a rat model which enabled us to validate the concept of 3D-printed bioabsorbable TEC. The two selected polymers were therefore shown to be compatible with the tissue engineering chamber reconstruction process and thus allowed the growth of the fat flap over time within the TEC