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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.
11

Monumentos, esculturas e espaço público: a imaginária urbana em Juiz de Fora/MG (1906-2016)

Viana, Fabrício Teixeira 25 April 2017 (has links)
Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-09-19T12:06:00Z No. of bitstreams: 1 fabricioteixeiraviana.pdf: 11504803 bytes, checksum: 4273559783077d0a1ac66eb383f5f19d (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-09-22T15:02:02Z (GMT) No. of bitstreams: 1 fabricioteixeiraviana.pdf: 11504803 bytes, checksum: 4273559783077d0a1ac66eb383f5f19d (MD5) / Made available in DSpace on 2017-09-22T15:02:02Z (GMT). No. of bitstreams: 1 fabricioteixeiraviana.pdf: 11504803 bytes, checksum: 4273559783077d0a1ac66eb383f5f19d (MD5) Previous issue date: 2017-04-25 / As cidades contemporâneas vêm sofrendo grandes transformações, tanto urbanas quanto sociais, que incentivam o estudo da história urbana desses ambientes construídos. Nesse sentido, parte-se do pressuposto que a arte pública, entendida como representante da imaginária urbana, pode revelar conteúdos simbólicos sobre determinado espaço público. Dessa forma, esse estudo visa entender os desígnios da imaginária urbana de três objetos urbanos em Juiz de Fora, Minas Gerais, Brasil: o monumento ao Cristo Redentor, no Morro do Imperador; o Marco do Centenário de Juiz de Fora, na praça Pantaleone Arcuri; e a escultura contemporânea denominada “Releitura de Abaporu”, na praça Antônio Carlos. Obtêm-se, com isso, três recortes temporais da produção de arte pública na cidade, respectivamente os anos de 1906, 1951 e 2015. A metodologia utilizada busca analisar esses elementos como representantes da imaginária urbana de cada um desses tempos assinalados, além da trajetória de intervenções nesses lugares através das ações dos diversos agentes sociais envolvidos nestes processos de transformações urbanas. Assim, pretende-se demonstrar que esses objetos são sintetizadores da paisagem e revelam conteúdos da memória social e história urbana de Juiz de Fora. / Contemporary cities have undergone major transformations, both urban and social, that encourage the study of the urban history of these built environments. In this sense, based on the assumption that public art, here understood as a representative of the urban imaginary, can reveal the symbolic contents about a certain public space. Therefore, this study aims to understand the intentions of the urban imaginary in three urban objects of Juiz de Fora, Minas Gerais-Brazil: the monument to Christ the Redeemer, in the Emperor’s Hill; The landmark of the Centenary of Juiz de Fora, in the Pantaleone Arcuri square; and the contemporary sculpture called "Releitura de Abaporu", in the Antonio Carlos square. In this way, we obtain three temporal cuts of the public art production in the city, respectively in the years 1906, 1951 and 2015. The methodology used seeks to analyze these elements as representatives of the signed times, as well as the trajectory of interventions in these places through the actions of the various social agents involved in these processes of urban transformation. Thus, the intention is to demonstrate that these objects are synthesizers of the landscape and reveal contents of the social memory and urban history of Juiz de Fora.
12

Segmatation multi-agents en imagerie biologique et médicale : application aux IRM 3D / Multi-agent segmentation for biological and medical imaging : 3D MRI application

Moussa, Richard 12 December 2011 (has links)
La segmentation d’images est une opération cruciale pour le traitement d’images. Elle est toujours le point de départ des processus d’analyse de formes, de détection de mouvement, de visualisation, des estimations quantitatives de distances linéaires, de surfaces et de volumes. À ces fins, la segmentation consiste à catégoriser les voxels en des classes basées sur leurs intensités locales, leur localisation spatiale et leurs caractéristiques de forme ou de voisinage. La difficulté de la stabilité des résultats des méthodes de segmentation pour les images médicales provient des différents types de bruit présents.Dans ces images, le bruit prend deux formes : un bruit physique dû au système d’acquisition, dans notre cas l’IRM (Imagerie par Résonance Magnétique), et le bruit physiologique dû au patient. Ces bruits doivent être pris en compte pour toutes les méthodes de segmentation d’images. Durant cette thèse,nous nous sommes focalisés sur des modèles Multi-Agents basés sur les comportements biologiques des araignées et des fourmis pour effectuer la tâche de segmentation. Pour les araignées, nous avons proposé une approche semi-automatique utilisant l’histogramme de l’image pour déterminer le nombre d’objets à détecter. Tandis que pour les fourmis, nous avons proposé deux approches : la première dite classique qui utilise le gradient de l’image et la deuxième, plus originale, qui utilise une partition intervoxel de l’image. Nous avons également proposé un moyen pour accélérer le processus de segmentation grâce à l’utilisation des GPU (Graphics Processing Unit). Finalement, ces deux méthodes ont été évaluées sur des images d’IRM de cerveau et elles ont été comparées aux méthodes classiques de segmentation : croissance de régions et Otsu pour le modèle des araignées et le gradientde Sobel pour les fourmis. / Image segmentation is a crucial operation for image processing. It is always the starting point of shape analysis process, motion detection, visualization, and quantitative estimation of linear distances, surfaces and volumes. For this, the segmentation consists on classifying the voxels into classes based on their local strengths, their spatial location and shape characteristics or neighborhood. The difficulty of the results stability of segmentation methods for medical images comes from the different types of noise present inside every image. In these images, the noise takes two forms: a physical noise due to the acquisition system, in our case, MRI (Magnetic Resonance Imaging), and a physiological noise due to the patient. These noises should be considered for all methods of segmentation. In this thesis, we focused on Multi-Agent models based on the biological behavior of spiders and ants to perform the task of segmentation. For spiders, we proposed a semi-automatic method using the histogram of the image to determine the number of objects to be detected. As for ants, we proposed two approaches: one that uses the so-called classical gradient of the image and the second, more original, which uses an intervoxel partition of the image. We also proposed a way to speed up the segmentation process through the use of the GPU (Graphics Processing Unit). Finally, these two methods were evaluated on MR images of brain and were compared with conventional methods of segmentation: region growing and Otsu for the model of spiders and Sobel gradient for the ants.
13

O AUTO INTERESSE NA OBRA DE ADAM SMITH: A ABORDAGEM MORAL DOS AGENTES SOCIAIS / SELF-INTEREST IN THE WORK OF ADAM SMITH: THE SOCIAL APPROACH OF THE MORAL AGENTS

Santos, Cezar Augusto Pereira dos 25 February 2014 (has links)
Fundação de Amparo a Pesquisa no Estado do Rio Grande do Sul / The present dissertation - through bibliographical research grounded mainly in the reading of the Theory of Moral Sentiments and of the Wealth of Nations - investigates the connection between Smith's moral philosophy and his approach regarding to the human principles that govern individual pursuit for improving own life condition. For achieve this goal are analyzed some of the Philosophical bases of the author (Stoics, Hutcheson, Hume) and studied the key concepts present in his two books in order to defend the viewpoint of that the Wealth of Nations is a continuity of the Theory of Moral Sentiments. From among the main lessons learned, from the study of the work of Adam Smith, are of which he cultivated, in his personal life, the qualities that in the TMS he considered defining of an excellent character: sobriety, temperance, fairness and magnanimity; which was through of the concepts of sympathy and the impartial spectator, created and developed in the TMS, that Smith created the concept of the prudent man, to which characterizes the majority of people who live in society; that the prudent man of Adam Smith is much different than homo economicus neoclassic; and, mainly, that the Smithian view of self-love is impregnated of moral connotations, once which goes far beyond mere self-interest for material wealth. / A presente dissertação - por meio de pesquisa bibliográfica fundamentada principalmente na leitura da Teoria dos Sentimentos Morais e na Riqueza das Nações - investiga a conexão entre a filosofia moral de Smith e a sua abordagem em relação aos princípios humanos que norteiam a busca individual por melhorar a própria condição de vida. Para alcançar este objetivo são analisadas algumas das bases Filosóficas do autor (estoicos, Hutcheson, Hume) e estudados os conceitos chaves presentes em seus dois livros de modo a defender o ponto de vista de que a Riqueza das Nações é uma continuidade da Teoria dos Sentimentos Morais. Dentre as principais lições aprendidas, a partir do estudo da obra de Adam Smith, está a de que ele cultivou, em sua vida pessoal, as qualidades que na TSM ele considerava definidoras de um caráter excelente: sobriedade, temperança, justeza e magnanimidade; que foi através dos conceitos de simpatia e espectador imparcial, criados e desenvolvidos na TSM, que Smith criou o conceito do homem prudente, o qual caracteriza a maioria das pessoas que vivem em sociedade; que o homem prudente de Adam Smith é muito diferente do homo economicus neoclássico; e, principalmente, que a visão smithiana de selflove está impregnada de conotações morais, uma vez que vai muito além do mero auto interesse por riquezas materiais.
14

Paralela XXI: a expansão urbana no vetor da Avenida Luis Viana Filho Salvador/BA – 1968 a 2013

Araújo, Cristina Filgueiras de 18 February 2014 (has links)
Submitted by Alane dos Santos Viana (alane.viana@ucsal.br) on 2016-09-27T13:19:32Z No. of bitstreams: 1 Banca Final - REVISÃO 30-6 WEB.pdf: 2344802 bytes, checksum: ff6e72625bf497ce41d99b272a337d3a (MD5) / Approved for entry into archive by Maria Emília Carvalho Ribeiro (maria.ribeiro@ucsal.br) on 2016-09-30T19:42:06Z (GMT) No. of bitstreams: 1 Banca Final - REVISÃO 30-6 WEB.pdf: 2344802 bytes, checksum: ff6e72625bf497ce41d99b272a337d3a (MD5) / Made available in DSpace on 2016-09-30T19:42:06Z (GMT). No. of bitstreams: 1 Banca Final - REVISÃO 30-6 WEB.pdf: 2344802 bytes, checksum: ff6e72625bf497ce41d99b272a337d3a (MD5) Previous issue date: 2014-02-18 / A presente dissertação tem como objetivo analisar a expansão da cidade de Salvador/BA e os agentes modeladores do espaço urbano, no vetor caracterizado pelo eixo viário da Avenida Paralela (Salvador/BA), como é conhecida a Avenida Luis Viana Filho, no período de 1968 a 2013. A metodologia utilizada, fundamentada em conceitos e teorias, consistiu em pesquisa quantitativa, a partir da análise da dinâmica de implantação de empreendimentos ao longo desta avenida, tendo por base o levantamento de dados constantes nos alvarás de construção emitidos pela Prefeitura Municipal de Salvador e em dados censitários do IBGE (2010), que se traduziram em mapas temáticos, tabelas e gráficos. As informações obtidas foram posteriormente cruzadas com fotos aéreas, e confrontadas por pesquisa de campo na área de estudo. A hipótese que se buscou comprovar foi que este território vem se caracterizando e conformando como um eixo de expansão urbana da cidade de Salvador, o qual, concebido inicialmente como elo de ligação entre centralidades metropolitanas, passou a desempenhar o papel de eixo de conexão entre empreendimentos aí implantados. Recentemente vem sendo requalificado com vistas à retomar este papel no novo sistema viário metropolitano que se configura no cenário atual. De forma breve, foram reconstruídas as transformações espaciais ocorridas na cidade como um todo e nesta localidade de forma mais específica, remontando à implantação da avenida na década de 1970 e as repercussões sobre o território contextualizadas historicamente em períodos definidos por marcos histórico-urbanos na trajetória política de Salvador. Como resultado, ratificou-se a hipótese levantada, comprovando-se a ação dos agentes sociais nesse vetor urbanizado na intenção da produção de novos espaços urbanos. Com o presente trabalho busca-se, pois enriquecer e despertar o interesse pela produção de novos estudos e/ou intervenções sobre esta área da cidade, até então pouco investigada no âmbito acadêmico. / This thesis aims to analyze the expansion of the city of Salvador / BA and the modeling agents of urban space, at the vector axis of Avenida Paralela (Salvador/BA), as is known the Avenida Luis Viana Filho, between 1968 and 2013. The methodology consisted of quantitative research, based on concepts and theories from the analysis of the dynamics of implementation of projects along this avenue, based on the survey data contained in building permits issued by the city administration of Salvador and census data of IBGE (2010), which were translated into thematic maps, tables and graphs. The information obtained was subsequently crossed with aerial photos, and confronted by field research in the study area. The hypothesis that sought to prove was that this territory has been characterized as an expansion axis of Salvador and, as it was conceived at the very beginning, as a link between Salvador and other cities of the metropolitan region. Subsequently acting as a point of connection between the ventures deployed there, it has been remodeled to get back to it’s original function. In brief, spatial transformations that occurred in the city were rebuilt as a whole, and in this location more specifically, dating back to the construction of this avenue in the 1970s and the repercussions on the territory historically contextualized. As a result, the hypothesis raised was confirmed by the action of social agents in the urbanized vector intending the production of new urban spaces. With this present work, one looks foward to enrich and awaken interest in the production of new studies and/or interventions in this area of town, though little investigation was found about it in the academic area.
15

The Roles of Coaches, Peers, and Parents in High School Athletes' Motivational Processes: A Mixed-Methods Study

Chu, Tsz Lun 08 1900 (has links)
Grounded in self-determination theory and achievement goal theory, the purpose of this mixed-methods study was to examine the underlying motivational processes from social environments created by coaches, peers, and parents to motivational outcomes in high school athletes, with an emphasis on the relative influence of social agents in basic psychological needs (i.e., autonomy, competence, and relatedness). The quantitative part of this study tested a hierarchical model of high school sport motivation in a final sample of 311 student athletes (204 boys, 107 girls) using structural equation modeling: social factors (coach-, peer-, and parent-created motivational climates) -> psychological mediators (need satisfaction and frustration) -> types of motivation (autonomous motivation, controlled motivation, and amotivation) -> consequences (subjective vitality, athlete burnout, and intention to drop out). Invariance across gender and across team type (varsity vs. non-varsity) was also tested. Adequate model fits were achieved in separate "brighter side" and "darker side" models across the overall sample, gender, and team type. The follow-up qualitative part of this study explored "how" beyond "what" coaches, peers, and parents contribute to the social environments, need frustration, and negative motivational outcomes in sport in a subsample of 37 student athletes (24 boys, 13 girls) who reported high amotivation/burnout and higher than average dropout intentions in the quantitative survey. Content analysis and observation were conducted to interpret the focus group interview data among athletes across gender and team type. The results of both quantitative and qualitative parts were integrated and compared to summarize the roles of coaches, peers, and parents in the "brighter and darker sides" of athletic experience in high school athletes.
16

Prestation, intresse, engagemang, uppskattning : Skillnader i upplevelse av en virtuell lärmiljö mellan matematiskt hög- och lågpresterande elever

Ljunglöv, Robin January 2011 (has links)
Digitala läromedel blir ett vanligare inslag i skolgången då ny teknologi erbjuder tidigare okända pedagogiska möjligheter. Denna uppsats undersöker hur elever som använder ett digitalt läromedel i form av en virtuell lärmiljö för matematiklärande upplever denna lärmiljö. Dessutom undersöks elevernas prestation i lärmiljöns matematiska uppgifter. Skillnader mellan elever i olika årskurser samt elever som är matematiskt låg- eller högpresterande studeras. Matematisk prestation beskrivs utifrån Goods (1981) passivitetsmodell som innebär att lågpresterande elever är mindre risktagande i klassrumsmiljön. Elevernas upplevelse av digitala läromedel studerades i en virtuell lärmiljö bestående av två moduler, en spelmodul och en modul för skriven dialog. Upplevelsen av lärmiljön undersöktes genom att studera hur intressant eleverna tyckte att spelet var, huruvida eleverna tyckte att agenten gjorde att de brydde sig mer när de spelade, samt om de gillade den skrivna dialogen. Tidigare insamlad data från elever i årskurs 6-8 som använt den virtuella lärmiljön undersöktes med kvasiexperimentell metod och analyserades med ANOVA. Analysen påvisade en skillnad mellan låg- och högpresterande elever i hur mycket de tycker att en pedagogisk virtuell agent engagerar dem i en virtuell lärmiljö. Matematiskt högpresterande elever anser att agenten gör dem mer engagerade än vad matematiskt lågpresterande elever anser. Detta kan tyda på att lågpresterande elevers passivitet utöver traditionell klassrumspedagogik också påverkar elevernas upplevelse av digitala läromedel. I vidareutvecklingen av den virtuella lärmiljön och skapandet av andra virtuella lärmiljöer är det viktigt att se till att elever både lär sig och engageras av lärmiljön. Utvecklare bör också ta hänsyn till de skillnader som finns mellan låg- och högpresterande elevers upplevelse av lärmiljön. Detta kan exempelvis ske genom att den virtuella lärmiljön görs anpassningsbar för att passa elever oberoende av prestationsnivå. Detta är en viktig målsättning för att se förbättra lågpresterande elevers möjligheter i skolan, något som virtuella lärmiljöer och digitala läromedel i allmänhet kan utgöra ett kraftfullt medium för.

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