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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

O ponto de ruptura: reestruturação espacial na região metropolitana do Rio de Janeiro / The breaking point: spatial restructuring in the metropolitan region of Rio de Janeiro

Oséias Teixeira da Silva 07 December 2016 (has links)
Nesse trabalho partimos da hipótese de que associado à recuperação econômica da região metropolitana do Rio de Janeiro em meados da década de 1990 estaria ocorrendo um processo de reestruturação espacial, marcado pela ocorrência da dispersão metropolitana e da reconfiguração da centralidade metropolitana. A dispersão metropolitana e a reconfiguração da centralidade metropolitana são vistas como facetas de um mesmo processo de reestruturação espacial que se desenvolve com ritmos diferenciados em diferentes regiões metropolitanas. A dispersão metropolitana significa o esgarçamento do tecido metropolitano, com a ampliação dos vazios entre as áreas efetivamente ocupadas e entre os extremos da região metropolitana, o que se dá a partir da produção de áreas urbanizadas descontínuas que conjugam enclaves e outras formas de urbanização como loteamentos populares e conjuntos habitacionais. A reconfiguração da centralidade metropolitana representa a transição de uma estrutura monocêntrica para uma estrutura policêntrica de centros, que se dá à medida que alguns municípios metropolitanos ampliam o grau de concentração de funções centrais além de passar a concentrar algumas funções anteriormente somente encontradas na metrópole. Ambas as facetas da reestruturação espacial na atualidade apontam para uma forma de produção do espaço mais dispersa, fragmentada e articulada em escala regional. Na região metropolitana do Rio de Janeiro, região essa marcada por uma extrema concentração de população e atividades econômicas na metrópole, a reestruturação espacial se evidencia a partir de um ponto de ruptura nas tendências seculares de concentração econômica e populacional na metrópole. / In this work, we start from the hypothesis that associated with the economic recovery in the mid-1990s was occurring a restructuring process, marked by the occurrence of metropolitan dispersion and reconfiguration of metropolitan centrality. The metropolitan dispersion and reconfiguration of metropolitan centrality are seen as facets of the same spatial restructuring process that develops at different paces in different metropolitan regions. The metropolitan dispersion means the fraying of the metropolitan urban area, with the expansion of the voids between the effectively occupied areas and between the extremes of the metropolitan region, what happens from the production of discontinuous urban areas that combine enclaves and another form of urbanization like popular allotments and housing states. The reconfiguration of metropolitan centrality represents the transition from a monocentric structure to a policentric structure of centers, thats happen according as some metropolitan municipalities extend the degree of concentration of central functions besides passing to concentrate some central functions previously only found in the metropolis. Both facets of present spatial restructuring point to a form of production of space more dispersed, fragmented and articulated on a regional scale. In the metropolitan region of Rio de Janeiro, region marked by an extreme concentration of population and economic activities in the metropolis, the spatial restructuring is evidenced from of a breaking point in the secular trends of economic and population concentration in the metropolis.
102

Metropolização do espaço: Itu, Salto e Sorocaba - SP / Metropolization of the space: Itu, Salto and Sorocaba

Andréia de Cássia da Silva Ajonas 09 March 2015 (has links)
O processo de reestruturação produtiva envolveu implicações tanto na morfologia, quanto dinâmica de vida em inúmeras cidades, gerando consideráveis mudanças nos fluxos interurbanos. É sobre eles que assentamos nossas análises. No Brasil, as dinâmicas que definiram nosso recorte temporal implantaram-se mais incisivamente através de uma série de reformulações políticas que caracterizaram o início da década de 1990. Elas implicaram, entre outras coisas, no acirramento da concorrência entre empresas e em sua maior liberdade de deslocamento pelo território, sendo a indústria a força impulsionadora de inúmeras transformações espaciais. Para compreender a relação entre reestruturação produtiva e mudanças na rede urbana, definimos como recorte territorial as cidades de Itu, Salto e Sorocaba. A análise dos fluxos interurbanos dessas cidades fornece elementos que reafirmam a ideia de que as mudanças espaciais geradas a partir da reestruturação produtiva não implicaram em uma perda de importância da capital do Estado, São Paulo. Ao invés disso, houve um reforço de sua centralidade, bem como de outras que lhe dão suporte, como é o caso de Sorocaba, em torno da qual um novo aglomerado se conformou. Essa cidade ampliou suas funções na rede urbana e atualmente integra o amplo conjunto metropolitano formado pela expansão da metrópole paulistana, a cidade-região. Concomitantemente a essa reafirmação de determinadas centralidades, há também o aumento da importância de fluxos que se estabelecem entre cidades de mesmo nível hierárquico, o que, atrelado a outros aspectos, assinala o desenvolvimento de uma rede urbana mais complexa, pela multiplicidade de interações que se estabelecem. Essa aparente contradição no contexto da rede urbana e sua relação com o processo de reestruturação produtiva é outro ponto que buscamos entender. Ela nos remete à análise das mudanças econômicas e nas estratégias empresariais para a concentração capitalista durante as últimas décadas. Isso porque consideramos os fluxos econômicos como os principais definidores da rede urbana. / The restructuring process involved implications so much in the morphology, as much in the dynamics of life in many cities, generating considerable changes in intercity flows. Its about them that we seat our analysis. In Brazil, the dynamics that defined our time frame established themselves more sharply through a series of reformulations policies that characterized the early 1990s. They led, among other things, to the increased of the competition between companies and their greater freedom of movement throughout the territory, being the industry the driving force of numerous spatial transformations. To understand the relation between changes in industrial structure and urban network, we defined as territorial clipping the cities of Itu, Salto and Sorocaba. The analysis of the intercity flows of these cities provides elements that reaffirm the idea that the spatial changes generated from the productive restructuring did not result in a loss of importance of the state capital, São Paulo. Instead, there was an increase of its centrality, as well as others that give support to it, as is the case of Sorocaba, around which a new agglomerate has been conformed. This city strengthened its functions in urban network and, currently, integrates the broad metropolitan set formed by the expansion of the paulistana metropolis, the city-region. Concomitantly with this reaffirmation of certain centralities, there is also the increasing importance of flows established between cities of the same hierarchical level, which, linked to other aspects, marks the development of a more complex urban network, due the multiplicity of interactions that take place. This apparent contradiction in the context of the urban network and its relation with the restructuring process is another point that we seek to understand with this research. It remits us to the analysis of the economic and business strategies changes for the capitalist concentration during the recent decades. This is because we consider the economic flows as the main delineaters of the urban network.
103

A expansão territorial de rede hoteleira e o aeroporto internacional de São Paulo/Guarulhos - A (re)produção de centralidades no município de Guarulhos (SP) / The Territorial Expansion the Hotel Chain and the Airport International of Sao Paulo/Guarulhos - The (Re) Production of Centralities in Guarulhos (SP).

Alexandre Magno Pires 06 March 2014 (has links)
A presente pesquisa visa mostrar como a instalação e edificação de um empreendimento urbano, no caso o Aeroporto Internacional de São Paulo/Guarulhos - Governador André Franco Montoro, inaugurado em 1985, induziu a expansão territorial da rede hoteleira e possibiltou a (re) produção de centralidades no Município de Guarulhos. Analisado a partir da Capital São Paulo e no espaço urbano de Guarulhos, como estas transformações espaciais e estruturais implicam no surgimento e expansão dos hotéis, bem como, a concentração de serviços atrelados ao funcionamento e manutenção destes equipamentos, fomentam a (re) produção de centralidades no município de Guarulhos / The present study aims show how the installation and construction of an enterprise urban, on case international airport of Sao Paulo/Guarulhos - governor Andre Franco Montoro, opened in 1985, induced expansion territorial network hotel and enabled the (re) production of centralities in Guarulhos (SP) Passed from the Capital - Sao Paulo and urban space in Guarulhos, how these transformations imply the emergence and expansion of hotels, and the concentrations of services linked to the operation and maintenance of such equipament, foster the (re) production of centralities in the county of Guarulhos
104

Caminhos e descaminhos: a ferrovia e a rodovia no bairro Barcelona em Sorocaba/SP / Roads and Embezzlements: Railroad and the Highway in the Barcelona Village in Sorocaba/São Paulo

Emerson Ribeiro 04 September 2006 (has links)
Este estudo problematiza a produção espacial de um bairro mediante os caminhos que nele chegam, como a ferrovia e a rodovia. Procura discutir como os caminhos que favoreceram o processo de industrialização e urbanização, sendo resultado das relações de produção de uma sociedade. Assim, o estabelecimento de uma sociedade num dado local advém também da importância dos caminhos criados e elaborados socialmente para esse fim, dando uma continuidade e interferindo nas relações de produção em seu sentido mais amplo: da vida, de mercadorias, de espaços. Esse movimento possibilita a reprodução das esferas produtivas, fazendo parte da sociedade urbana e industrial. Num tempo próprio do bairro, no caso o Bairro Barcelona na cidade de Sorocaba-SP, este tem seu cotidiano transformado ao mesmo tempo em que essa escala do lugar faz parte de um movimento de reprodução do capital que articula outras escalas. Entender esse processo exige que se discuta a expansão da cidade, bem como de sua centralidade e como, ao mesmo tempo, se fragmentam e articulam os espaços, transformando a realidade local. / This study shows the problem in the space production of a neighborhood by means of the roads that arrive in it, as the railroad and the highway. It tries to discuss as the roads that favored the industrialization process and urbanization, being resulted of the relationships of production of a society. Thus, the establishment of a society in a dice local came also of the roads servants\' importance and elaborated socially for that end, giving a continuity and interfering in the production relationships in its wider sense: of the life, of goods, of spaces. That movement facilitates the reproduction of the productive spheres, being part of the urban and industrial society. In an own time of the neighborhood, in the case the Barcelona Village in the city of Sorocaba-SP, this has its daily one transformed at the same time in that that scale from the position is part of a movement of reproduction of the capital that articulates other scales. To understand that process demands to discusses the expansion of the city, as well as of its centrality and as, at the same time, how the spaces are fragmented and articulated, transforming the local reality.
105

A Berrini na centralidade de São Paulo / Berrini in the São Paulo\'s centrality

Adailton Isidro de Deus 18 September 2007 (has links)
Esta dissertação procurou localizar, identificando e analisando por meio do espaço, como a espacialização da globalização econômica (setor financeiro e de serviços) na cidade de São Paulo, especificamente no centro Berrini, contribuiu para fragmentar ou para desdobrar a centralidade de São Paulo. Nosso objeto de pesquisa foram as possíveis relações e os impactos que o Centro Berrini considerado como uma área das mais recentes na cidade de São Paulo a concentrar um significativo afluxo de investimentos para escritórios de empresas transnacionais, \"um centro de negócios mundial\", estabeleceu e desencadeou provocando ou não transformações em relação ao Centro e a centralidade da Cidade de São Paulo. A globalização da economia influenciou em várias cidades mundiais a formação ou criação de centros com as chamadas atividades do Terciário Moderno (setor de serviços e financeiro) de forma muito semelhante ao que ocorre no Centro Berrini. No entanto, mesmo com o afluxo de investimentos globais, sua gênese não pode ser entendida sem a articulação com o processo de crescimento e expansão urbana da cidade, o desdobramento de sua centralidade que continua a acontecer, de tal forma, que a centralidade expande alcançando áreas que antes eram consideradas como fazendo parte da periferia. O resultado é um novo conflito sócio - espacial induzido por um modelo de produção em que a centralidade econômica ocupa espaços antes periféricos. E, de forma contraditória e desigual, nesses espaços parcelas da população tenta resistir e às vezes incorporando ações e valores do próprio modelo que a produziu. / This dissertation is centred upon identifying and analysing through the space idea how the economic and global spaciousness (financial and trade centres) at São Paulo city, specifically at Berrini center, had been contributing to fragment or increase São Paulo\'s centrality. Our research\'s object focus the possibles relations and impacts that the Berrini centre, considered as the newest area in the city of São Paulo that concentrates a significative investment affluences to world-wide business offices, \"a world business center\", had established and incremented by causing or not transformations between the Centre itself and the centrality of São Paulo. The economic globalization had influenced on many cities of the world the formation or creation of centers whose activities is kown as Modern Third (trade and financial sectors) in the same way that occurs at Berrini centre. Otherwise even with the global investments affluences its genesis can\'t be understand without the articulation with the growing process and the urban expansion of the city , the improvement of its centrality that\'s still being done in such a way that the centrality increases reaching out areas that former were considered as being part of periphery. So the consequence is a new spacious and social conflict induced by a production model where the economic centrality occurs in spaces before considered peripheral. And in a contradictory and unequal way on these spaces some kind of the population intends to resist by incorporating sometimes moral principles and actions of the same model that had created it.
106

Network Centrality and Market Prices: Empirical Evidence

Firgo, Matthias, Pennerstorfer, Dieter, Weiss, Christoph 02 1900 (has links) (PDF)
We empirically investigate the importance of centrality (holding a central position in a spatial network) for strategic interaction in pricing for the Austrian retail gasoline market. Results from spatial autoregressive models suggest that the gasoline station located most closely to the market center - defined as the 1-median location - exerts the strongest effect on pricing decisions of other stations. We conclude that centrality influences firms' pricing behavior and further find that the importance of centrality increases with market size.
107

Extracting social networks from fiction : Imaginary and invisible friends: Investigating the social world of imaginary friends.

Ek, Adam January 2017 (has links)
This thesis develops an approach to extract the social relation between characters in literary text to create a social network. The approach uses co-occurrences of named entities, keywords associated with the named entities, and the dependency relations that exist between the named entities to construct the network. Literary texts contain a large amount of pronouns to represent the named entities, to resolve the antecedents of pronouns, a pronoun resolution system is implemented based on a standard pronoun resolution algorithm. The results indicate that the pronoun resolution system finds the correct named entity in 60,4\% of all cases. The social network is evaluated by comparing character importance rankings based on graph properties with an independently human generated importance rankings. The generated social networks correlate moderately to strongly with the independent character ranking.
108

Déterminants individuels de la position sociale et du rôle dans la cohésion de groupe chez trois espèces de Cercopithecinae / Individual determinants of social position and role in group cohesion in three Cercopithecinae species

Bret, Céline 29 September 2014 (has links)
La vie en groupe fascine les scientifiques depuis longtemps et la question des mécanismes en jeu permettant à un groupe social de rester cohésif est largement étudiée. Dans ce travail, je me suis intéressée à l’implication des relations sociales dans le maintien de la cohésion chez trois espèces de Cercopithecinae. Pourquoi certains individus occupent une place particulière au sein du réseau de relations sociales d’un groupe ? Ces individus ayant un statut social particulier ont-ils un rôle de ciment social ? D’après les résultats de ce travail, les relations de parenté, en relation avec le style social de l’espèce, semblent être le facteur prédominant sous-tendant l’accession des individus à un statut social élevé. De plus, les individus occupant une position sociale élevée jouent un rôle primordial dans la stabilité du groupe, et ont également une influence importante sur les décisions prises quotidiennement, leur conférant in fine un avantage en termes de survie et de reproduction. / The comprehension of the mechanisms allowing a social group to stay cohesive throughout their environment and across seasons is a fascinating question. In this work, I studied the implication of social relationships in maintaining group cohesion in three Cercopithecinae species. Why some individuals occupy specific positions within the social relationships network? Have these individuals a particular role in the stability of social groups? According to our results, kinship seems to be an important variable underlying the access to a high social status for group members, in respect with the social style displayed by the considered species. Moreover, Individuals occupying such high social positions play a crucial role for the group stability. They also have a great influence on decisions took on a daily basis by the group. This high social status is therefore advantageous for individuals in terms of survival and reproduction.
109

Portfolio Construction Using Hierarchical Clustering / Portfolio Construction Using Hierarchical Clustering

Fučík, Vojtěch January 2017 (has links)
Hlavním cílem této práce je vyložit a zejména propojit existující metodologii filtrování korelačních matic, grafových algoritmů aplikovaných na minimální kostry grafu, hierarchického shlukování a analýzy hlavních komponent, pro vytvoření kvantitativních investičních strategií. Namísto tradičního použití časových řad akciových výnosů je užito reziduí z faktorových modelů. Tato rezidua jsou klíčovým vstupem pro všechny používané algoritmy k výpočtu pravděpodobnosti středovosti dané akcie. Pravděpodobnost středovosti je nekonvenční ukazatel pravděpodobnosti, kde hodnota blízko 1 značí vysokou pravděpodobnost středovosti dané akcie v dané ekonomické síti. Na základě této míry pravděpodobnosti je vybudováno několik investičních strategií, které jsou dále testován hlavních amerických akciových indexů. Nemůže být generalizováno, že periferní strategie dosahují konzistentně lepších výsledků než středové strategie. Zatímco při použití klasického Markowitzova optimalizačního procesu jsou zisky stabilní a potenciál průměrný, oba typy vybudovaných strategií (středové i periferní) sdílí vysoký potenciál zisku, který je ovšem vykoupen vysokou volatilitou.
110

Le métro hors les murs : prolongements de lignes et évolution urbaine de la banlieue parisienne / The Underground Off the Walls : lines Extensions and Urban Evolution of Parisian Suburbs

Padeiro, Miguel 15 October 2009 (has links)
Depuis le début des années 1970, le prolongement vers la banlieue parisienne de plusieurs lignes du métropolitain a contribué à l’unification fonctionnelle de deux espaces traditionnellement opposés. Ce déploiement d’un réseau à l’origine éminemment parisien interroge à la fois, d’une part, l’évolution intrinsèque du tissu social et urbain des quartiers desservis et, de l’autre, le rôle joué par l’infrastructure de transport collectif. Cette recherche, qui se base sur un découpage de l’espace par bandes annulaires ainsi que sur l’exploitation des données de l’occupation du sol (IAURIF/MOS) et du recensement de la population (INSEE/RGP), est conduite en trois temps. D’abord, l’identification de formes de polarisation urbaine par intensification des tissus bâtis montre l’existence d’une différenciation spatiale interne à la banlieue et indépendante de la distance à Paris. Ensuite, l’introduction de la dimension temporelle et des variables descriptives du parc de logements conduit à remettre en question le sens du lien causal entre réseau métropolitain et configuration urbaine. Enfin, l’analyse de la distribution des variables sociodémographiques et de leur évolution récente permet de reconnaître la concomitance entre la distribution des résidents et la distance au métro, mais révèle surtout leur lien aux caractéristiques des logements. Plus que le métro, le poids des héritages urbains apparaît comme le principal déterminant des configurations observées / Since the early 1970’s, the extensions to the suburbs of several lines of the Paris subway system has contributed to the functional unification of two traditionally opposed areas. Such a deployment of an originally Parisian network queries, on the one hand, the intrinsic social and urban fabric evolution in the served urban areas and the other the role played by transportations infrastructure. Based on a space division by ring strips, the use of land-use data (IAURIF / MOS) and the population census (INSEE / RGP), this research was conducted in 3 steps. First, urban polarization forms identification through building intensification shows the existence of spatial differentiation within the suburbs, independent from the distance to Paris. Then, the introduction of temporal dimension and descriptive variables of housing stock put into question the origin of leading influence between underground stations and urban configuration. Finally, the analysis of sociodemographic variables distribution and their recent developments allows to recognize the match concomittance between residents settlements and the distance to the subway, but reveals their relationship to the livings characteristics. More than the subway, the urban heritage weight is seen as the main determinant of the observed configurations

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