Orientadores: Nancy Lopes Garcia, Alexsandro Giacomo Grimbert Gallo / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação Científica / Made available in DSpace on 2018-08-24T12:54:22Z (GMT). No. of bitstreams: 1 Carvalho_WalterAugustoFonsecade_D.pdf: 1034671 bytes, checksum: 25dd72305f343655bedfde62a785a259 (MD5) Previous issue date: 2014 / Resumo: Esta tese é dedicada ao estudo dos processos de renovação binários obtidos como agregação de estados a partir de processos Markovianos com alfabeto finito. Na primeira parte, utilizamos uma abordagem matricial para obter condições sob as quais o processo agregado pertence a cada uma das seguintes classes: (1) Markoviano de ordem finita, (2) processo de ordem infinita com probabilidades de transição contínuas, (3) processo Gibbsiano. A segunda parte trata da distância d entre processos de renovação binários. Obtivemos condições sob as quais esta distância pode ser atingida entre tais processos / Abstract: This thesis is devoted to the study of binary renewal processes obtained as aggregation of states from Markov processes with finite alphabet. In the rst part, we use a matrix approach to obtain conditions under which the aggregated process belongs to each of the following classes: (1) Markov of finite order, (2) process of infinite order with continuous transition probabilities, (3) Gibbsian process. The second part deals with the distance d between binary renewal processes. We obtain conditions under which this distance can be achieved between these processes / Doutorado / Estatistica / Doutor em Estatística

Main goal of this thesis is to create realistic business plan for small milk bar in Kuřim. Basic terms, definitions of used analyses and detailed description of business plan are described in the theoretical part of this thesis. The practical part is focused on choosing the suitable market by using proper analysis and creating the actual business plan for milk bar.

No description available.

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-04-12T18:17:03Z No. of bitstreams: 1 GABRIEL SILVEIRA MENDON?A.pdf: 1588339 bytes, checksum: ac959f4b2ddfd505877f7dfb3be6f26d (MD5) / Made available in DSpace on 2017-04-12T18:17:03Z (GMT). No. of bitstreams: 1 GABRIEL SILVEIRA MENDON?A.pdf: 1588339 bytes, checksum: ac959f4b2ddfd505877f7dfb3be6f26d (MD5) Previous issue date: 2017-02-07 / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / This reasearch discusses the concept of ideology on the work of Ign?cio Mart?n-Bar?, the pioneer of Liberation Psychology. One of the most controversial concepts within the Social Sciences, ideology has a fundamental place in the work of this Spanish-Salvadoran psychologist, who considered this concept as a study object from Social Psychology. We start from the Dialectical-Historical Materialism and from present discussions about ideology on this theoretical tradition, also from debates about the referred concept on the modern social thought and on the international and Latin-American psychology, to reflect the author?s formulations. We focused on his formulations considering the whole of the work, the historical context of his productions, and the main conjunctural influences, like the Salvadoran civil war and the Liberation Theology. We have selected 22 texts from Mart?n-Bar? that presented in their titles and/or abstracts the concept of ideology and/or derived terms (ideologization and de-ideologization), and/or concepts of alienation and/or consciousness and analyzed them on the time sequence of their elaborations. Our analysis allows us to afirm that Mart?n-Bar? reflected about the possibilities of psychologists actions on the subjective dimensions of life producted by objetive situations of oppression and exploitation. It is in this way that he discusses ideology, considering that it changes its meaning throughout his work, one that is a synonymous of ?point of view?, and the other, more complex, known as a false consciousness that conceals and hides the social determinants according to the interests of the dominant class. Ideology foments in the dominated classes an alienated consciousness which prevents them from understanding their own reality, their own form and identity and to be the subject of their own story. Against this occulting and classist function that ideology possesses, the author claims for the de-ideologization as a way to deconstruct the dominant ideology, the disalienation to enable the individuals to overcome the alienated consciousness and both as components of a conscientization that aims to build new ways of critical consciousness and relations with a transformer and liberator horizon, politically oriented in favor of popular majorities. / Esta pesquisa discute o conceito de ideologia na obra de Ign?cio Mart?n-Bar?, precursor da psicologia da liberta??o. Um dos conceitos mais controversos no ?mbito das ci?ncias sociais, ideologia tem lugar fundamental na obra do psic?logo espanhol-salvadorenho, considerado por ele como objeto de estudo da psicologia social por excel?ncia. Partimos do materialismo hist?rico dial?tico e de discuss?es sobre ideologia presentes nesta tradi??o te?rica e de debates sobre o referido conceito no pensamento social moderno e na psicologia internacional e latino-americana para refletir sobre as formula??es do autor. Debru?amo-nos sobre suas formula??es levando em considera??o o conjunto de sua obra, o contexto hist?rico de sua produ??o e as principais influ?ncias conjunturais ?s suas produ??es, como a guerra civil salvadorenha e a Teologia da Liberta??o. Selecionamos os 22 textos de Mart?n-Bar? que apresentam em seus t?tulos e/ou resumos o conceito de ideologia e/ou termos derivados (ideologiza??o e desideologiza??o), e/ou conceitos de aliena??o e/ou conscientiza??o e analisamo-los na sequ?ncia temporal de suas elabora??es. Nossa an?lise permite afirmar que Mart?n-Bar? reflete sobre as possibilidades de a??o dos psic?logos nas dimens?es subjetivas da vida produzidas por situa??es objetivas de opress?o e explora??o. Pois ? neste sentido que ? discutido o conceito de ideologia, o qual, ao longo da obra, possui diferentes significados, um que ? sin?nimo de vis?o de mundo e outro, mais elaborado, como falsa consci?ncia que encobre e oculta os determinantes sociais segundo os interesses da classe dominante. A ideologia, por sua vez, fomenta nas classes dominadas uma consci?ncia alienada que as impede de compreender sua realidade, formarem uma identidade pr?pria e serem sujeitos de sua pr?pria hist?ria. Frente a esta fun??o ocultadora e classista que a ideologia possui e suas consequ?ncias, o autor reivindica a desideologiza??o como forma de desconstruir a ideologia dominante, a desaliena??o para possibilitar que os sujeitos superem a consci?ncia alienada e ambas como componentes da conscientiza??o que, orientada politicamente em favor das maiorias populares, visa construir novas formas de consci?ncia cr?tica e de rela??es com horizonte transformador e libertador.

La méthode de diffusion inverse est la plus efficace dans la théorie des systèmes intégrables. Introduite dans les années soixantes, d'importants résultats ont été obtenus pour les problèmes de dimension 1+1 et notamment sur l'interaction de solitons. Depuis quelques années, l'intérêt est porté sur des problèmes de dimensions supérieures comme les équations de Davey-Sterwartson, une généralisation de l'équation intégrable de Schrödinger cubique non linéaire en dimension 1+1. Des études numériques en limite semi-classique de l'équation de Davey-Stewartson II (DSII) défocalisant, font apparaître des points communs avec le cas réduit unidimensionnel, par exemple sur l'existence d'ondes de choc dispersives : des conditions initiales lisses mènent à une région d'oscillations rapides et modulées dans le voisinage des chocs des solutions des équations non dispersives dotées des mêmes conditions initiales.Cette thèse donne les premières étapes pour l'étude analytique de ce problème basée sur la méthode de la transformée de diffusion inverse. Les deux types de méthodes, directe et inverse, pour l'équation de DSII permettent de réécrire le problème sous la forme des équations D-bar. On considère la transformée spectrale directe pour l'équation DSII avec des conditions initiales lisses en limite semi-classique. La transformée spectrale directe mène à un système de Dirac elliptique singulièrement perturbé en deux dimensions. On introduit une méthode de type BKW pour ce problème et on montre qu'il est bien défini pour des paramètres spectraux k ∈ ℂ dont les modules sont suffisamment grands en controllant la solution d'une équation eikonale non linéaire. Aussi cette méthode donne des résultats numériques précis pour de tels k en limite semi-classique. Ces résultats reposent sur la solution numérique du système de Dirac singulièrement perturbé et la solution numérique du problème eikonal.On résout le problème eikonal de manière explicite pout tout k dans le cas d'un potentiel particulier. Ces calculs donnent une explication sur le fait que l'on ne puisse pas appliquer la méthode BKW pour des valeurs de |k| plus petites. On présente une nouvelle méthode numérique pour calculer la solution du problème eikonal avec des valeurs de |k| suffisamment grandes.Les calculs numériques de la transformée spectrale directe offrent une manière d'analyser le système de Dirac singulièrement perturbé pour des valeurs de |k| si petites qu'il n'y a pas de solution globale au problème eikonal. On donne une analyse semi-classique rigoureuse sur la solution pour des potentiels radiaux en k = 0, ce qui donne une expression asymptotique du coefficient de réflexion pour k = 0 et suggère une structure annulaire pour la solution, ce qui peut être utilisé quand |k| ≠ 0 est petit. L'étude numérique suggère aussi que pour certains potentiels, le coefficient de réflexion converge simplement, quand ε ↓ 0, vers une fonction limite définie pour des valeurs de k pour lesquelles le problème eikonal n'a pas de solution globale. On propose que les singularités de la fonction eikonale jouent un rôle aussi similaire que les points tournants de la théorie unidimensionelle. / Inverse scattering is the most powerful tool in theory of integrable systems. Starting in the late sixties resounding great progress was made in (1+1) dimensional problems with many break-through results as on soliton interactions. Naturally the attention in recent years turns towards higher dimensional problems as the Davey-Stewartson equations, an integrable generalisation of the (1+1)-dimensionalcubic nonlinear Schrödinger equation. The defocusing Davey-Stewartson II equation, in its semi-classical limit has been shown in numerical experiments to exhibit behavior that qualitatively resembles that of its one-dimensional reduction, namely the generation of a dispersive shock wave: smooth initial data develop a zone rapid modulated oscillations in the vicinity of shocks of solutions for the corresponding dispersionless equations for the same initial data. The present thesis provides a first step to study this problem analytically using the inverse scattering transform method. Both the direct and inverse scattering transform for DSII can be expressed as D-bar equations. We consider the direct spectral transform for the defocusing Davey-Stewartson II equation for smooth initial data in the semi-classical limit. The direct spectral transform involves a singularly perturbed elliptic Dirac system in two dimensions. We introduce a WKB-type method for this problem and prove that it is well defined for sufficiently large modulus of the spectral parameter k ∈ ℂ by controlling the solution of an associated nonlinear eikonal problem. Further, we give numerical evidence that the method is accurate for such k in the semiclassical limit. Producing this evidence requires both the numerical solution of the singularly perturbed Dirac system and the numerical solution of the eikonal problem. We present a new method for the numerical solution of the eikonal problem valid for sufficiently large |k|. For a particular potential we are able to solve the eikonal problem in a closed form for all k, acalculation that yields some insight into the failure of the WKB method for smaller values of |k|. The numerical calculations of the direct spectral transform indicate how to study the singularly perturbed Dirac system for values of |k| so small that there is no global solution of the eikonal problem. We provide a rigorous semiclassical analysis of the solution for real radial potentials at k=0, which yields an asymptotic formula for the reflection coefficient at k = 0 and suggests an annular structure for the solution that may be exploited when |k| ≠ 0 is small. The numerics also suggest that for some potentials the reflection coefficient converges point-wise as ε ↓ 0 to a limiting function that is supported in the domain of k-values on which the eikonal problem does not have a global solution. We suggest that singularities of the eikonal function play a role similar to that of turning points in the one-dimensional theory.

Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2018-12-11T11:40:22Z No. of bitstreams: 1 Douglas Araujo Klock_.pdf: 716663 bytes, checksum: 63e83c55fd9b26ff1e9beb8d58dedd7c (MD5) / Made available in DSpace on 2018-12-11T11:40:22Z (GMT). No. of bitstreams: 1 Douglas Araujo Klock_.pdf: 716663 bytes, checksum: 63e83c55fd9b26ff1e9beb8d58dedd7c (MD5) Previous issue date: 2018-08-23 / Nenhuma / De forma geral, os estudos de consumo colocam a mulher sob três prismas distintos: como coadjuvante, ao considerar que suas atividades de consumo dependem do masculino; buscando condições de equidade, ao analisar o momento que ela se masculiniza para uma determinada situação de consumo; ou em posições conservadoras, ao estudar o consumo em seus papéis de mãe, esposa ou em eventos ligados ao lar. Alinhado com Pierre Bourdieu, que defende a existência de uma espécie de dominação masculina na sociedade operando por meio de mecanismos bem definidos e seus reflexos podem ser vistos no comportamento de consumo. Especificamente, a cerveja e o bar, no Brasil, são frutos dessa dinâmica preestabelecida, onde a mulher é vista como um objeto dentro de um ambiente historicamente masculinizado. O objetivo desta dissertação é, justamente, analisar o consumo feminino de cerveja em bares da cidade Porto Alegre e, ainda, verificar a possível influência de padrões sócio-historicos de consumo, descrevendo o comportamento feminino dentro do contexto estudado. Para isso, foi realizada uma pesquisa qualitativa, inspirada em estudos etnográficos, no momento do consumo de cerveja por mulheres em bares da cidade, identificando os significados e as representações do consumo feminino de cerveja. Os resultados foram estruturados em três partes para discussão. Primeiro, por meio das mitologias de mercado, que interferem no consumo. Na segunda parte, por intermédio dos discursos e o reflexo no comportamento feminino. A terceira parte traz o contexto e o produto pela lente das entrevistadas. Este estudo incentivou contribuições teóricas no avanço sobre a visão das mulheres nas pesquisas de consumo em uma posição privilegiada dentro de um ambiente masculinizado, sugerindo a existência de desdobramentos para novas investigações. Sob a ótica profissional, o estudo inspira um conjunto de sugestões práticas para tornar as experiências de consumo feminino de cerveja mais inclusivas, usando o posicionamento da marca, a atuação de mercado das empresas do setor e o surgimento de novos produtos. / In general, consumer studies place women under three different prisms: as a coadjuvant, when considering that their consumption activities depend on the masculine, seeking conditions of equity when analyzing when it masculiniza to a situation of consumption or in conservative positions, by studying consumption in their roles as mother, wife or in household-related processes. Aligned with Pierre Bourdieu who advocates the existence of a kind of male domination in society, operating through well defined mechanisms and their reflexes can be seen in consumer behavior. Specifically, beer and bar in Brazil are reflections of this pre-established dynamics, where the woman is seen as an object within a historically masculinized environment. The objective of this dissertation is to analyze the female consumption of beer in bars in the city of Porto Alegre and to verify the possible influence of socio-historical consumer patterns, describing the female behavior within the studied context. For this, a qualitative research was carried out, inspired by ethnographic studies, at the moment of the consumption of beer by women in bars of the city, identifying the meanings and the representations of the female consumption of beer. The results were structured in three parts for discussion: first through market mythologies that interfere with consumption. In the second part through the discourses and the reflex in the feminine behavior. The third part brings the context and the product through the lens of the interviewees. This study encouraged theoretical contributions in advancing the position of women in consumer studies in a privileged position within a masculinized environment, suggesting the existence of unfoldments for new studies. From a professional point of view, the study inspires a set of practical suggestions to make female beer consumption experiences more inclusive using brand positioning, market performance of companies in the sector and the emergence of new products.

La production du boson de Higgs associée à une paire de quarks top est l'un des modes de production de boson de Higgs les plus importants bien que toujours pas encore observé. Par conséquent, sa découverte est l'une des recherches les plus ambitieuse après la découverte Higgs: non seulement cela sera la première fois que nous pourrons observer ce mode de production du Higgs mais nous pourrons également en mesurer le couplage de Yukawa au quark top. Les résultats de ces mesures peuvent répondre aux questions fondamentales du Modèle Standard (MS) et peuvent également donner des indices de nouvelle physique au-delà du MS. Une analyse de la recherche de la production de boson de Higgs associée à une paire de quarks top dans des états finaux à trois leptons est présentée dans cette thèse. Cette analyse est réalisée avec des données collectées par le détecteur ATLAS en 2015 et 2016 pendant la campagne dite « Run 2 » et correspondant à une luminosité intégrée de 36.1 fb-1 à une énergie dans le centre de masse de 13 TeV. Elle utilise un algorithme d'arbre de décision renforcé pour discriminer le signal et le fond. Le bruit de fond dominant de faux leptons est estimé avec une méthode de matrice s’appuyant sur les données (Méthode de la Matrix). Pour un Higgs standard de 125 GeV, un excès d'événements par rapport au bruit de fond attendu d'autres processus MS est trouvé avec une signification observée de 2.2 écarts-types, comparé à une prédiction de 1.5 écart-type. Le meilleur ajustement pour la section efficace de production $t\bar tH$ est de $1.5^{+0.8}_{-0.7}$ fois l'espérance SM, consistant avec la valeur SM du couplage de Yukawa au quark top. / The production of the Higgs boson associated with a pair of top quarks is one of the most important Higgs boson production modes yet still not observed. Therefore, its discovery is one of the most challenging searches after the Higgs discovery: not only will it be the first time we can observe this Higgs production mode but also we will be able to measure its Yukawa coupling to the top quark. The measured results can answer the basic question of the Standard Model (SM) and can also search for any hints of new physics beyond the SM prediction. An analysis searching for the production of the Higgs boson associated with a pair of top quarks in three leptons final states is presented in this thesis. It is performed with the data collected by the ATLAS detector in 2015 and 2016 during the so-called « Run 2 » campaign corresponding to an integrated luminosity of 36.1 fb−1 at a center of mass energy of 13 TeV. It uses a boosted decision tree algorithm to discriminate between signal and background. The dominant background of fake leptons is estimated with the data-driven matrix method (Matrix Method). For a 125 GeV Standard Model Higgs boson, an excess of events over the expected background from other SM processes is found with an observed significance of 2.2 standard deviations, compared to an expectation of 1.5 standard deviations. The best fit for the $t\bar tH$ production cross section is $1.5^{+0.8}_{-0.7}$ times the SM expectation, consistent with the SM value of the Yukawa coupling to top quarks.

No description available.

Όπως μπορεί κανείς να καταλάβει και από τον τίτλο, η εργασία έχει να κάνει με μία μέθοδο επίλυσης μη γραμμικών μερικών διαφορικών εξισώσεων και, συγκεκριμένα, μιας οικογένειας τέτοιων εξισώσεων, που ονομάζονται εξισώσεις εξέλιξης. Πολλές από αυτές, μάλιστα, επιδέχονται ειδικού τύπου λύσεις που είναι γνωστές με το όνομα σολιτόνια (solitons). Αρχικά, μας απασχολεί η έννοια της ολοκληρωσιμότητας, για την οποία όμως δεν υπάρχει κάποιος σαφής ορισμός. Παρ' όλα αυτά, μπορούμε να πούμε ότι μία διαφορική εξίσωση καλείται ολοκληρώσιμη όταν μπορεί να γραμμικοποιηθεί άμεσα ή έμμεσα. Ο όρος έμμεση γραμμικοποίηση συνδέεται με την έννοια της ύπαρξης ζευγαριού Lax, την οποία εξηγούμε χρησιμοποιώντας εργαλεία της θεωρίας τελεστών. Για τις μη γραμμικές εξισώσεις εξέλιξης, έχει αναπτυχθεί πλέον πλήθος μεθόδων ανάλυσης, στα πλαίσια της ολοκληρωσιμότητας, και υπάρχει πλούσια σχετική βιβλιογραφία. Αναφέρουμε συνοπτικά μερικές από αυτές χρησιμοποιώντας κάποια παραδείγματα, ενώ επικεντρωνόμαστε στην αναλυτική περιγραφή μιας μεθόδου που πρώτοι παρουσίασαν οι Zakharov και Shabat το 1974. Η μέθοδος αυτή, η οποία αναπτύχθηκε λίγο μετά τη μέθοδο της αντίστροφης σκέδασης, ονομάζεται μέθοδος ένδυσης (dressing method) ή σχήμα των ZS. Για την παρουσίασή της, χρησιμοποιούμε μόνο τελεστές χωρίς να αναφερόμαστε πουθενά στα δεδομένα σκέδασης του προβλήματος. Εισάγουμε, με τη βοήθεια διαφορικών και ολοκληρωτικών τελεστών, το γυμνό (undressed) και το ντυμένο (dressed) τελεστή και, έπειτα, δείχνουμε πώς από αυτούς προκύπτει η γενικευμένη εξίσωση Lax. Παραθέτουμε κάποια παραδείγματα εξισώσεων στις οποίες εφαρμόζεται η μέθοδος και, τέλος, κατασκευάζουμε σολιτονικές λύσεις για τη μη γραμμική εξίσωση του Schrödinger, με τη βοήθεια της ολοκληρωτικής εξίσωσης των Gelfand-Levitan-Marchenko. Πέρα από την περιγραφή της μεθόδου ένδυσης στην αρχική της μορφή, βλέπουμε και πώς αυτή εμφανίζεται στη σύγχρονη βιβλιογραφία. Με την πάροδο του χρόνου εξελίχθηκε αρκετά και συνδέθηκε με προβλήματα της μιγαδικής ανάλυσης και, πιο συγκεκριμένα, με τα προβλήματα Riemann-Hilbert (RH) και dbar που, με τη σειρά τους, προκύπτουν σε πολλές εφαρμογές των μαθηματικών. Από ένα μεγάλο πλήθος πρόσφατα δημοσιευμένων άρθρων, παρουσιάζουμε αναλυτικότερα ένα, αυτό των Bogdanov και Zakharov (2002), που αφορά στην εξίσωση Boussinesq. Περιγράφουμε μια ειδικότερη μορφή της μεθόδου ένδυσης, η οποία ονομάζεται ένδυση dbar (dbar-dressing) και αναλύουμε, μέσω αυτής, τις σολιτονικές λύσεις και το συνεχές φάσμα της εξίσωσης Boussinesq. Οι σολιτονικές λύσεις της εξίσωσης παρουσιάζουν μία πολύ ιδιαίτερη συμπεριφορά, η οποία έρχεται σε αντίθεση με τον ευσταθή χαρακτήρα των σολιτονίων. / As one can understand from the title, our main subject is a method for solving nonlinear partial differential equations and in particular a family of such equations, called evolution equations. Many of them admit a special kind of solutions, known as solitons. One of our basic interests is the integrability of a nonlinear evolution equation, although a specific definition for that does not exist in the bibliography. However, a partial differential equation is considered to be integrable when it can be linearized directly or indirectly. By indirect linearization we mean the existence of a Lax pair for the initial equation and this connection is explained in terms of operator theory. In the frame of integrability, a large number of methods dealing with the study and analysis of nonlinear evolution equations has been developed. We briefly mention some of them and present some examples, while we focus on the analytic description of a method which was introduced by Zakharov and Shabat, in 1974. This method was developed right after the Inverse Scattering Method and it is known as dressing method or ZS scheme. In order to present it, a dressed and undressed operator are introduced, by the use of operators only whithout refering to the scattering data. Based on those operators the generalized Lax equation is produced. Then we present a number of examples of evolution equations which can be solved via the dressing method and finally we constract soliton solutions for the nonlinear Schrödinger equation by solving the Gelfand-Levitan-Marchenko integral equation. Appart from the description of dressing method in its initial form, a quick review of recent papers and results is considered. The method evolved through time and was connected with some problems of complex analysis and specifically the Riemann-Hilbert (RH) and dbar problems. Those two problems arise in many mathematical and physical applications. From a wide range of recent published articles, we analytically present one which was written by Bogdanov and Zakharov (2002) and deals with Boussinesq equation. The continuous spectrum and soliton solutions are investigated, using a special form of dressind method called dbar-dressing. Soliton solutions for the Boussinesq equations demonstrate a quite extraordinary behaviour destroying the stereotype of usual solitons which are considered to be stable objects.