Cette thèse aspire à contribuer à la réflexion sur certaines formes transnationales de mobilisation sociale de la deuxième décennie du XXIe siècle. Elle propose pour ce faire trois articles qui étudient différents phénomènes à l’aide d’une approche ethnographique : Occupons Montréal, Global Square et le Forum social mondial. Ce travail doctoral s’inspire des réflexions sur l’importance de la spatialité apportées par la géographie critique (Auyero, 2005; Massey, 1984; Therborn, 2006). Il explore également l’ « espace ouvert », tel que présenté au sein de la littérature sur les Forums sociaux mondiaux (Keraghel et Sen, 2004; Sen, 2008; Wallerstein, 2004; Whitaker, 2000). De plus, ma démarche dialogue avec la littérature issue de la sociologie des mouvements sociaux (Fraser, 1990; Negt, 2007; Tilly, 2004), et lui apporte un complément d’analyse en reconnaissant autant les ambitions d’unité au sein des objets abordés, que leur nature complexe et dynamique. Le premier article offre ainsi une lecture d’Occupons Montréal, installé en automne 2011 au sein du Square Victoria. Observant deux lieux précis de l’occupation, il questionne ce que l’observation de la spatialité d’une mobilisation sociale dite transnationale peut nous apprendre sur les dynamiques qui s’y développent. Le deuxième article de cette thèse présente une analyse de deux mobilisations qui ont coexisté en 2013 : le Forum social mondial qui eut lieu à Tunis, et Global Square. Il permet ainsi de faire dialoguer ce phénomène altermondialiste emblématique avec une initiative composée d’activistes de Occupy, Indignados et du Printemps tunisien, entre autres, qui s’organisaient en ligne pour participer au FSM 2013. Cet article creuse l’argument selon lequel les espaces transnationaux de mobilisation sont mus par certaines tensions qui leur sont inhérentes. Le troisième article – co-écrit avec Nikolas Schall – mobilise la théorie de l’ « assemblage » (DeLanda, 2006, 2016; Nail, 2017; Rabinow, 2011) pour avancer dans la compréhension des espaces transnationaux, et particulièrement du Forum social mondial 2016 à Montréal. La théorie de l’assemblage (assemblage thinking) renouvelle les possibilités d’analyse de l’hétérogénéité constitutive de ces objets transnationaux complexes : ceux-ci apparaissent comme le fruit de l’interaction de multiples composantes autonomes (pouvant elles-mêmes être des « assemblages d’assemblages »), faisant émerger un « tout fragmentaire » (fragmentary whole) toujours en construction (DeLanda, 2006). La conclusion de cette recherche doctorale soumet une synthèse de ses apports. Elle démontre tout d’abord comment les dimensions théoriques présentées en introduction (illustrant les tensions transnationalité/ancrage, hétérogénéité/unité, et horizontalité/relations de pouvoir) transparaissent à travers chaque article. Puis, voulant apporter une réponse à la question générale de la thèse – comment rendre compte des objets transnationaux complexes ? – je propose une grille analytique qui permet d’illustrer leur émergence à l’intersection des différentes dimensions analysées. Les limites de la thèse sont également présentées. Finalement, je suggère la pertinence d’un élargissement de la notion de société civile, afin que celle-ci puisse inclure la pluralité des perspectives présentes au sein des espaces transnationaux de mobilisation. / This dissertation aims to contribute to the thinking on certain transnational forms of social mobilization in the second decade of the 21st Century. To do so, it proposes three articles that examine different phenomena using an ethnographic approach: Occupy Montreal, Global Square, and the World Social Forum. The inspiration for this doctoral dissertation are the insights offered by critical geography on the importance of spatiality (Auyero, 2005; Massey, 1984; Therborn, 2006). It also explores “open space,” as presented in the literature on the World Social Forums (Keraghel and Sen, 2004; Sen, 2008; Teivainen, 2004; Wallerstein, 2004; Whitaker, 2000). Furthermore, my approach engages with the sociology literature on social movements (Fraser, 1990; Negt, 2007; Tilly, 2004) and contributes a complementary analysis – recognizing the desire for unity within the initiatives discussed as well as their complex and dynamic natures. The first article offers an interpretation of Occupy Montreal, which occupied Victoria Square in the fall of 2011. Observing two specific locations in the occupation, it questions whether observation of the spatiality of a so-called transnational social mobilization can teach us about the dynamics developed there. The second article of this thesis presents an analysis of two mobilizations that occurred in 2013 – the World Social Forum, held in Tunis, and Global Square. It therefor facilitates a dialogue between this emblematic alter-globalist phenomenon and an initiative comprised of activists from movements such as Occupy, Indignados, and the Jasmine Revolution – which organized on-line to participate in WSF 2013. This article explores the argument that transnational mobilization spaces are propelled by certain inherent tensions. The third article, co-authored with Nikolas Schall – uses the prism of “assemblage thinking” (DeLanda, 2006, 2016; Nail, 2017; Rabinow, 2011) to advance the understanding of transnational spaces, particularly the 2016 World Social Forum in Montreal. Assemblage thinking renews the possibilities for analyzing the constitutive heterogeneity of these complex transnational phenomena, which appear as the fruit of the interaction of multiple autonomous components (they themselves potentially being “assemblages of assemblages”), leading to the emergence of an ever-evolving “fragmentary whole” (DeLanda, 2006). The conclusion of this doctoral research offers a synthesis of these contributions. In the first instance it is shown how the theoretical dimensions presented in the introduction (illustrating the tensions between transnationality/anchorage, heterogeneity/unity, and horizontality/power relationships) are visible in each article. Then in the second instance, wishing to provide a response to the general question posed by this dissertation – how to account for complex transnational phenomena – I propose an analytical matrix for illustrating their emergence at the intersection of the various dimensions analyzed. The limitations of this dissertation are likewise presented. Finally, I suggest the relevance of expanding the concept of civil society to include the plurality of perspectives present in transnational spaces of mobilization.

<p><span style="left: 81.5833px; top: 720.322px; font-size: 17.5px; font-family: serif; transform: scaleX(1.07268);">U doktorskoj disertaciji razmatrani su iterativni postupci za re&scaron;avanje nelinearnih komplementarnih problema (NCP). Problemi ovakvog tipa javljaju se u teoriji optimizacije, inženjerstvu i ekonomiji. Matematički modeli mnogih prirodnih, dru&scaron;tvenih i tehničkih procesa svode se takođe na ove probleme. Zbog izuzetno velike zastupljenosti NCP problema, njihovo re&scaron;avanje je veoma aktuelno. Među mnogobrojnim numeričkim postupcima koji se koriste u tu svrhu, u ovoj disertaciji posebna pažnja posvećena je<br />generalizovanim postupcima Njutnovog tipa i iterativnim postupcima sa re-gularizacijom matrice jakobijana. Definisani su novi postupci za re&scaron;avanje NCP i dokazana je njihova lokalna ili globalna konvergencija. Dobijeni teorijski rezultati testirani su na relevantnim numeričkim primerima. </span></p> / <p>Iterative methods for nonlinear complementarity problems (NCP) are con-sidered in this doctoral dissertation. NCP problems appear in many math-ematical models from economy, engineering and optimization theory. Solv-ing NCP is very atractive in recent years. Among many numerical methods for NCP, we are interested in generalized Newton-type methods and Jaco-bian smoothing methođs. Several new methods for NCP are defined in this dissertation and their local or global convergence is proved. Theoretical results are tested on relevant numerical examples.</p>

Made available in DSpace on 2016-04-18T21:31:39Z (GMT). No. of bitstreams: 2 Lucia Pereira Pires Cavalsan1.pdf: 1236801 bytes, checksum: d5f9307b2e714907312158ee3d8e536b (MD5) Lucia Pereira Pires Cavalsan2.pdf: 3366088 bytes, checksum: fafe849f7eff1e2654774111d92d1e9d (MD5) Previous issue date: 2008-02-21 / Instituto Presbiteriano Mackenzie / The research has the goal of analyzing the contributions of the television newspaper information in the lesson to establish inter relation among pupils having knowledge of different nature. By the daily use of television newspaper information it was possible to teach-in-context and analyze what television newspaper information may offer to enlarge and make the pupils information be always up to date, regarding local, national and international context. It was also possible to identify and to describe how pupils have utilized those received informations, how they have related them to the subject they have learned in the school and, finally, how they have done to take all those informations to their families. As the research is considered a kind of ex-post-facto research, having a quality nature, we have considered as data source, those answers given by the pupils using questionnaires , with the objective of knowing both the child and his family habit regarding television use. By using both individual and group interviews it has been possible to analyze the project contribution to each one of the pupils and how they have used this experience given by the television newspaper information. Finally using their parent interview results it has been possible to analyze the results of this project in the family day. This subject is of great importance, because it enables the school context to become integrated to the local, national and international informations. It gives the pupils rise both to the research and the interest of getting informations and knowledge which may also be shared with the family, allowing them, both the pupils and their family, to improve their self-esteem each day. Using what Shulman, Shoenfeld, Aebli, Forquin, Freire, Piaget, have told about this subject I have analyzed the school practice of the television newspaper information project through two basic processes as follows: how the teachers learn the teaching-in-context process and the pupils knowledge construction. With this paper, the pupil, the family, the school, the community or the teacher will have better results because, as Piaget has told (2005 p. 15) that what we want to, is that the teacher stops being just a lecturer and makes the pupils be interested in doing research and making better efforts instead of being fulfilled of giving them ready solutions . / A pesquisa objetiva identificar e analisar contribuições do telejornal na sala de aula para o estabelecimento de inter-relações entre conhecimentos de diferentes naturezas dos alunos. Através da utilização do telejornal diariamente foi possível contextualizar os conteúdos pedagógicos e analisar as contribuições que o telejornal pode oferecer para aumentar e atualizar informações dos alunos acerca do contexto local, nacional e internacional. Foi possível também identificar e descrever como os alunos utilizaram as informações recebidas, como as relacionaram com os conteúdos escolares e finalmente como fizeram para que essas informações chegassem até suas famílias. Tratando-se de uma pesquisa ex-post-facto de natureza qualitativa, foram considerados, como fonte de dados, as respostas oferecidas pelos alunos através de questionários com o objetivo de traçar um perfil quanto ao hábito da criança e sua família em relação ao uso da televisão. Através de entrevistas individuais e coletivas com os alunos foi possível analisar as contribuições do projeto para cada aluno e como eles se manifestaram em relação à experiência fornecida pelo telejornal. Por fim, através de entrevista com os pais foi possível analisar as repercussões do projeto no dia-a-dia familiar. Esta temática é de fundamental importância, pois une conteúdos escolares que se tornam contextualizados através das informações local, nacional e internacional. Desperta no aluno o gosto pela pesquisa e o interesse em adquirir informações e conhecimentos que poderão ser, inclusive, compartilhados com os familiares numa reciprocidade de elevação da autoestima. Apoiado em teóricos como Shulman, Shoenfeld, Aebli, Forquin, Freire e Piaget, analiso a prática pedagógica do Projeto Telejornal através de dois processos básicos que são: processos de aprendizagem da docência e a construção de conhecimentos dos alunos. Com este trabalho, aluno, família, escola, comunidade e professor são beneficiados porque como disse Piaget (2005, p.15) ... o que se deseja é que o professor deixe de ser apenas um conferencista e que estimule a pesquisa e o esforço, ao invés de se contentar com a transmissão de soluções já prontas .

Notre objectif dans cette thèse est l'étude des équations différentielles non linéaires comportant des dérivées fractionnaires en temps et/ou en espace. Nous nous sommes intéressés dans un premier temps à l'étude de deux systèmes non linéaires d'équations différentielles fractionnaires en temps et/ou en espace, puis à l'étude d'une équation différentielle fractionnaire en temps. Plus exactement pour la première partie, les questions concernant l'existence globale et le comportement asymptotique des solutions d'un système non linéaire d'équations différentielles comportant des dérivées fractionnaires en temps et en espace sont élucidées. Les techniques utilisées reposent sur des estimations obtenues pour les solutions fondamentales et la comparaison de certaines inégalités fractionnaires. Toujours dans la première partie, l'étude d'un système non linéaire d'équations de réaction-diffusion avec des dérivées fractionnaires en espace est abordée. L'existence locale et l'unicité des solutions sont prouvées à l'aide du théorème du point fixe de Banach. Nous montrons que les solutions sont bornées et analysons leur comportement à l'infini. La deuxième partie est consacrée à l'étude d'une équation différentielle fractionnaire non linéaire. Sous certaines conditions sur la donnée initiale, nous montrons que la solution est globale alors que sous d'autres, elle explose en temps fini. Dans ce dernier cas, nous donnons son profil ainsi que des estimations bilatérales du temps d'explosion. Alors que pour la solution globale nous étudions son comportement asymptotique. / Our objective in this thesis is the study of nonlinear differential equations involving fractional derivatives in time and/or in space. First, we are interested in the study of two nonlinear time and/or space fractional systems. Our second interest is devoted to the analysis of a time fractional differential equation. More exactly for the first part, the question concerning the global existence and the asymptotic behavior of a nonlinear system of differential equations involving time and space fractional derivatives is addressed. The used techniques rest on estimates obtained for the fundamental solutions and the comparison of some fractional inequalities. In addition, we study a nonlinear system of reaction-diffusion equations with space fractional derivatives. The local existence and the uniqueness of the solutions are proved using the Banach fixed point theorem. We show that the solutions are bounded and analyze their large time behavior. The second part is dedicated to the study of a nonlinear time fractional differential equation. Under some conditions on the initial data, we show that the solution is global while under others, it blows-up in a finite time. In this case, we give its profile as well as bilateral estimates of the blow-up time. While for the global solution we study its asymptotic behavior.

L’objectif de cette thèse porte sur des recherches théoriques et algorithmiques d’optimisation locale et globale via les techniques de programmation DC & DCA, Séparation et Evaluation (SE) ainsi que les techniques de relaxation DC/SDP, pour résoudre plusieurs types de problèmes d’optimisation non convexe (notamment en Optimisation Combinatoire et Optimisation Polynomiale). La thèse comporte quatre parties :La première partie présente les outils fondamentaux et les techniques essentielles en programmation DC & l’Algorithme DC (DCA), ainsi que les techniques de relaxation SDP, et les méthodes de séparation et évaluation (SE).Dans la deuxième partie, nous nous intéressons à la résolution de problèmes de programmation quadratique et linéaire mixte en variables entières. Nous proposons de nouvelles approches locales et globales basées sur DCA, SE et SDP. L’implémentation de logiciel et des simulations numériques sont aussi étudiées.La troisième partie explore des approches de la programmation DC & DCA en les combinant aux techniques SE et SDP pour la résolution locale et globale de programmes polynomiaux. Le programme polynomial avec des fonctions polynomiales homogènes et son application à la gestion de portefeuille avec moments d’ordre supérieur en optimisation financière ont été discutés de manière approfondie dans cette partie.Enfin, nous étudions dans la dernière partie un programme d’optimisation sous contraintes de type matrices semi-définies via nos approches de la programmation DC. Nous nous consacrons à la résolution du problème de réalisabilité des contraintes BMI et QMI en contrôle optimal.L’ensemble de ces travaux a été implémenté avec MATLAB, C/C++ ... nous permettant de confirmer l’utilisation pratique et d’enrichir nos travaux de recherche. / The main objective of this thesis focuses on theoretical and algorithmic researches of local and global optimization techniques to DC programming & DCA with Branch and Bound (B&B) and the DC/SDP relaxation techniques to solve several types of non-convex optimization problems (including Combinatorial Optimization and Polynomial Optimization). This thesis is divided into four parts :We present in the first part some fondamental theorems and essential techniques in DC programming & DC Algorithm (DCA), the SDP Relaxation techniques, as well as the Branch and Bound methods (B&B).In the second part, we are interested in solving mixed integer quadratic and linear programs. We propose new local and global approaches based on DCA, B&B and SDP. The implementation of software and numerical simulations have also been investigated.The third part explores the DC programming approaches & DCA combined with a B&B technique and SDP for locally and globally solving a class of polynomial programming. The polynomial program with homogeneous polynomial functionsand its application to portfolio selection problem involving higher order moments in financial optimization have been deeply studied in this part.Finally, in the last part, we present our research on optimization problems under constraints of semi-definite matrices via our DC programming approaches. This part is dedicated to the resolution of the BMI and QMI feasibility problems in the field of optimal control.All these proposed methods have been implemented with MATLAB, C++ etc., that allowing us to confirm the practical use and enrich our research works.

Philosophiae Doctor - PhD / Tuberculosis is a bacterial infection which is a major cause of death worldwide. TB is a curable disease, however the bacterium can become resistant to the first line treatment against the disease. This leads to a disease called drug resistant TB that is difficult and expensive to treat. It is well-known that TB disease thrives in communities in overcrowded environments with poor ventilation, weak nutrition, inadequate or inaccessible medical care, etc, such as in some prisons or some refugee camps. In particular, the World Health Organization discovered that a number of prisoners come from socio-economic disadvantaged population where the burden of TB disease may be already high and access to medical care may be limited. In this dissertation we propose compartmental models of systems of differential equations to describe the population dynamics of TB disease under conditions of crowding. Such models can be used to make quantitative projections of TB prevalence and to measure the effect of interventions. Indeed we apply these models to specific regions and for specific purposes. The models are more widely applicable, however in this dissertation we calibrate and apply the models to prison populations.

The teaching of writing is a central task for teachers of Swedish and it is a complex activity which requires knowledge of different areas such as language, communication, and text. The aim of this licentiate’s dissertation is to investigate when and how the knowledge needed for the teaching of writing is developed in teacher education as well as during the first years of teaching. The study is based on semi-structured qualitative interviews with prospective and novice upper secondary school teachers of Swedish. The data obtained from the interviews were analyzed in two ways. The first analysis focused on the way in which the prospective and novice teachers talked about text, writing, and the teaching of writing. The result shows that, at the beginning of the teacher education, prospective teachers focus on concrete aspects of text – such as syntax, punctuation and spelling – when they speak about text, writing, writing instruction, and assessment of student writings. In other words, they pay special attention to local text levels. At the end of the teacher education  programme, prospective teachers focus on aspects of text structure such as outline, the structure of paragraphs, coherence and cohesion. Certain aspects that the students pay special attention to are mentioned by the novice teachers, but these aspects are not central to them. Instead, novice teachers give special attention to the global text levels such as context, receivers and the purpose of the text, i.e. abstract aspects of text and writing. The pattern discerned shows a development that starts with a focus on the details at a local text level and expands into a more comprehensive view with a focus at a global level. The second analysis concerns the development of the knowledge base for the teaching of writing. This analysis focuses on two of the knowledge categories described by Lee S. Shulman (1986, 1987), namely subject matter knowledge and pedagogical content knowledge (PCK), both of which can be seen as central for the teaching of writing. The knowledge base manifested in the prospective teachers’ utterances mainly consists of subject matter knowledge, whereas the greater part of the knowledge base manifested in the teachers’ utterances consists of pedagogical content knowledge for the teaching of writing. The teachers also manifest a more complex subject matter knowledge and speak about writing instruction in a way which is characterized by conscious choices, reflection and metacognition. The analysis thus shows that the PCK for the teaching of writing is mainly developed in the teaching profession; in other words, after the teacher education programme is finished.