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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.
251

Les espaces intermédiaires et la densification des tissus périurbains / In-between spaces and Densification of peri-urban fabric

Benigni, Camille 04 December 2014 (has links)
Le débat actuel, portant sur la consommation des territoires qui est associée à la périurbanisation caractérisée par la maison individuelle, nous a amené à entreprendre notre travail. La volonté d’inscrire l’évolution des tissus périurbains dans une historiographie architecturale et urbaine nous a conduit à analyser ces formes périurbaines, à travers l’étude des processus et mécanismes morphogénétiques. La densité a eu mauvaise presse auprès des scientifiques et professionnels de la ville, aujourd’hui celle-ci semble être considérée comme un remède à l’étalement des territoires. Ainsi, nous nous sommes intéressés à l’instrumentalisation de la densité par les différents acteurs de la Ville, à travers les lois, les documents d’urbanisme. Nous nous sommes penchés sur l’étude de la définition de la densité, de sa place dans la théorie urbanistique et du rapport qu’elle entretient avec la morphogénèse des tissus périurbains. Ce travail aborde la transformation des tissus périurbains (dont l’analyse est peu présente dans les travaux scientifiques) au travers du prisme des espaces intermédiaires, que nous considérons comme un enjeu important dans l’évolution durable des territoires. Enfin, ce travail s’est proposé de réaliser une nouvelle lecture des espaces périurbains par les espaces intermédiaires à l’échelle de la parcelle pavillonnaire, en considérant que l’analyse des transformations, qui s’y déroulent, représente un élément marquant/discriminant pour l’élaboration des politiques urbaines. / Actually the discussion about the use of territories, which is associated with suburbanization characterized by the house led us to undertake our research. The research aims to include the development of peri-urban fabrics in architectural and urban historiography. And from that, we have analysed these suburban forms. Density has a bad press among scientists and city professionals; today it seems to be considered as a cure for the urban sprawl. Therefore, we have looked at the exploitation of the density by the different actors of the City, through legislation, planning documents. We focused on the study of the definition of density, its place in urban theory and its relation with peri –urban fabric morphogenesis. This research addresses the transformation of suburban fabric (whose analysis is not present in the scientific work) through the prism of the “in-between spaces”, which we consider an important issue in the sustainable development of territories. Finally, this work has proposed to produce a new reading of suburban areas by the “in-between spaces” in the suburban plot, whereas the analysis of the transformations that take place, are a prominent feature for urban policy.
252

Uma contribui??o para o ensino aprendizagem dos n?meros racionais: a rela??o entre d?zimas peri?dicas e progress?es geom?tricas

Matos, Raphael Neves de 02 August 2017 (has links)
Submitted by Raniere Barreto (raniere.barros@ufvjm.edu.br) on 2018-04-12T16:51:05Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) raphael_neves_matos.pdf: 4286914 bytes, checksum: 4faddab9001b8b035017adfd9a2d6d75 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-04-20T14:12:28Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) raphael_neves_matos.pdf: 4286914 bytes, checksum: 4faddab9001b8b035017adfd9a2d6d75 (MD5) / Made available in DSpace on 2018-04-20T14:12:28Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) raphael_neves_matos.pdf: 4286914 bytes, checksum: 4faddab9001b8b035017adfd9a2d6d75 (MD5) Previous issue date: 2017 / Este trabalho teve como objetivo principal apresentar uma contribui??o para o ensino aprendizagem dos n?meros racionais, destacando principalmente a rela??o entre d?zimas peri?dicas e progress?es geom?tricas. A metodologia utilizada permitiu a an?lise da abordagem e sequ?ncia did?tica dos t?picos D?zima peri?dica e Progress?o Geom?trica Infinita, contemplada nos livros did?ticos aprovados pelo Programa Nacional do Livro Did?tico. Nesta abordagem as fra??es e os n?meros decimais, especialmente os decimais infinitos e peri?dicos, e por consequ?ncia o c?lculo de sua fra??o geratriz, foram objetos de estudo centrais e instigadores dessa pesquisa. Realizou-se um estudo mais detalhado sobre a representa??o decimal dos n?meros racionais e analisando a compreens?o destes n?meros em n?vel fundamental e m?dio. Foi ainda proposto uma abordagem das maneiras mais usuais do c?lculo da fra??o geratriz, bem como, explorado a rela??o entre os decimais infinitos e peri?dicos e as progress?es geom?tricas. Durante o desenvolvimento deste trabalho, foi poss?vel perceber que h? mais de uma abordagem did?tica dos t?picos de ensino inerentes ao tema central analisado. O reconhecimento de que a parte decimal das d?zimas peri?dicas pode ser expressa como uma soma infinita de parcelas que, a partir de certo ponto, descreve uma progress?o geom?trica infinita de raz?o compreendida entre zero e um, ? um ponto chave na proposta de interven??o apresentada para a sala de aula. Diante desse quadro, foi verificado a ordem atualmente seguida pelos professores do 1? Ano do Ensino M?dio, o que permitiu constatar que os conte?dos D?zimas Peri?dicas e Progress?es Geom?tricas Infinitas s?o tratados sem liga??o significativa e, diante disso, foi proposta uma altera??o na ordem de abordagem desses conte?dos no Ensino M?dio. Ao final foram propostas algumas sugest?es de atividades resolvidas e outras para serem desenvolvidas em sala de aula. / Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o Matem?tica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / The aim of this work was to present a contribution to the teaching of rational numbers, emphasizing mainly the relation between periodic tithe and geometric progression. The methodology used allowed the analysis of the approach and didactic sequence of the topics Periodic Dizima and Infinite Geometric Progression, contemplated in textbooks approved by the National Textbook Program. In this approach fractions and decimal numbers, especially the infinite and periodic decimals, and consequently the calculation of their generative fraction, were central objects and instigators of this research. A more detailed study on the decimal representation of rational numbers was carried out and the understanding of these numbers at the fundamental and medium levels was analyzed. It was also proposed an approach of the most usual ways of calculating the generative fraction, as well as exploring the relationship between infinite and periodic decimals and geometric progressions. During the development of this work, it was possible to perceive that there is more of a didactic approach of the teaching topics inherent to the central theme analyzed. The recognition that the decimal part of the periodic tithe can be expressed as an infinite sum of plots which, from a certain point, describes an infinite geometric progression of ratio between zero and one, is a key point in the proposal of intervention presented for the classroom. In view of this situation, we verified the order currently being followed by teachers of the 1? Year of High School, which allowed to verify that the Periodic Dictionaries and Infinite Geometric Progressions are treated without significant connection and, accordingly, a change was proposed in order to approach these contents in High School. At the end, some suggestions for solved activities and others to be developed in the classroom were proposed.
253

Farming for What, for Whom? Agriculture and Sustainability Governance in Mexico City

January 2017 (has links)
abstract: City governments are increasingly incorporating urban and peri-urban agriculture into their policies and programs, a trend seen as advancing sustainability, development, and food security. Urban governance can provide new opportunities for farmers, but it also creates structures to control their activities, lands, and purposes. This study focused on Mexico City, which is celebrated for its agricultural traditions and policies. The study examined: 1) the functions of urban and peri-urban agriculture that the Government of Mexico City (GMC) manages and prioritizes; 2) how the GMC’s policies have framed farmers, and how that framing affects farmers’ identity and purpose; and 3) how the inclusion of agrarian activities and lands in the city’s climate-change adaptation plan has created opportunities and obstacles for farmers. Data was collected through participant observation of agricultural and conservation events, informal and semi-structured interviews with government and agrarian actors, and analysis of government documents and budgets. Analysis of policy documents revealed that the GMC manages agriculture as an instrument for achieving urban objectives largely unrelated to food: to conserve the city’s watershed and provide environmental services. Current policies negatively frame peri-urban agriculture as unproductive and a source of environmental contamination, but associate urban agriculture with positive outcomes for development and sustainability. Peri-urban farmers have resisted this framing, asserting that the GMC inadequately supports farmers’ watershed conservation efforts, and lacks understanding of and concern for farmers’ needs and interests. The city’s climate plan implicitly considers farmers to be private providers of public adaptation benefits, but the plan’s programs do not sufficiently address the socioeconomic changes responsible for agriculture’s decline, and therefore may undermine the government’s climate adaptation objectives. The findings illuminate the challenges for urban governance of agriculture. Farms do not become instruments for urban sustainability, development, and food security simply because the government creates policies for them. Urban governments will be more likely to achieve their goals for agriculture by being transparent about their objectives, honestly evaluating how well those objectives fit with farmers’ needs and interests, cultivating genuine partnerships with farmers, and appropriately compensating farmers for the public benefits they provide. / Dissertation/Thesis / Doctoral Dissertation Sustainability 2017
254

Mercado de terras e intervenções públicas na ocupação de áreas periurbanas / Land market and occupation of public interventions inperiurban areas

Nascimento, Silvia Augusta do 31 August 2012 (has links)
Made available in DSpace on 2015-03-26T13:33:53Z (GMT). No. of bitstreams: 1 texto completo.pdf: 4132478 bytes, checksum: 5561e4df833f1f3509ec7068c4719239 (MD5) Previous issue date: 2012-08-31 / Contemporary the process of global urbanization is notable for the intensity of its expansion, also in Brazil, where the great majority of the population lives in urban areas, with a vibrant aspect of the dynamics of this occupation the configuration of a space called peri-urban. From this overview, this paper aims to analyze the consequences of the interaction between the land market and public interventions, in the formation and orientation of the dynamics of occupation of peri-urban areas, in the west region of the city of Juiz de Fora (Minas Gerais), also known as Cidade Alta (Uptown) in almost all its entirety, seeking to understand the role and influence of market land and public interventions in the process of its expansion, passing their socioeconomic characteristics, their occupation and the growth of the main neighborhoods that comprise it. For this purpose, besides the analysis based on a mixed methodology data of the market value of their land and their peculiar housing market, I sought to compare the numerical data with an analysis of features supported by observations of its main components and causes of the phenomena analyzed.The corpora related to the object of research are coming from data from the Territorial Urban Property Tax - a property tax, between the years 2000 to 2010, in each neighborhood and its subdivisions, as well as listings of the two largest newspapers in circulation of Juiz de Fora: Tribuna de Minas and Diário Regional. The result is an empirical analysis of the vectors of expansion in the region studied, addressing different forms of land use, especially for the installation of condominiums and discussion of socioeconomic and growth features, which in turn, show a highly speculative real estate in the region. It is intended to provide information to better understand this specific type of expansion, as well as the causes of the rise of areas similar to this locus, as a basis for the study of alternatives in terms of public policies in support of a concept of right to housing in their broadest sense of equity of access to public equipments and basic infrastructure in peri-urban areas. / Contemporaneamente, o processo de urbanização global destaca-se pela intensidade de sua expansão, também no Brasil, em que a grande maioria da população vive em áreas urbanas, sendo um aspecto pujante da dinâmica dessa ocupação a configuração de um espaço denominado periurbano. A partir desse panorama, a presente dissertação tem como objetivo analisar os reflexos da interação entre o mercado de terras e as intervenções públicas, na formação e orientação da dinâmica de ocupação de áreas periurbanas, da região Oeste da cidade de Juiz de Fora (Minas Gerais), também denominada como Cidade Alta , em quase toda a sua totalidade, buscando compreender a atuação e a influência do mercado de terras e das intervenções públicas no processo de sua expansão, perpassando suas características socioeconômicas, a sua ocupação e o crescimento dos principais bairros que a compõem. Para tanto, além da análise baseada em uma metodologia mista dos dados do valor venal de seus terrenos e o seu mercado imobiliário particular, buscou-se confrontar os dados numéricos com uma análise apoiada em observações de características de seus principais componentes e causas dos fenômenos analisados. Os corpora relacionados ao objeto da pesquisa são advindos de dados do Imposto Predial Territorial Urbano - IPTU, entre os anos de 2000 a 2010, em cada bairro e seus loteamentos, bem como anúncios dos dois jornais de maior circulação de Juiz de Fora: Tribuna de Minas e Diário Regional. O resultado é uma análise empírica sobre os vetores de expansão da região estudada, abordando as diferentes formas de ocupação do solo, com destaque para a instalação de condomínios e a discussão de aspectos socioeconômicos e de crescimento, que por sua vez, apontam para um mercado imobiliário altamente especulativo na região. Pretende-se fornecer subsídios para se melhor entender esse tipo específico de expansão, bem como as causas do surgimento de áreas semelhantes a esse lócus, como base de estudo para alternativas em termos de políticas públicas em prol de um conceito do direito à moradia em sua acepção mais ampla da equidade do acesso a equipamentos públicos e infraestrutura básica nos espaços periurbanos.
255

Técnicas de permacultura como tecnologias socioambientais para a melhoria na qualidade da vida em comunidades da Paraíba / Permaculture Techniques as Social and Environmental Technologies to improve the life quality in communities

Paes, Wellington Marchi 29 April 2014 (has links)
Made available in DSpace on 2015-05-07T14:49:36Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 12481734 bytes, checksum: 6875ec9b59b796f7215ebaf3e4c7f91a (MD5) Previous issue date: 2014-04-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Permaculture techniques are alternatives that have been developed in order to produce a permanent crop that restores the human being to the environment, taking into account the observation of the natural environment and experimentation, with the intent of improving the various factors that are contributing to the deterioration of life and nature. Thus, it seeks to restore the nature balance s that human actions have broken. The lack of sanitation has brought many negative consequences, both to human health and the environment, so the waste managing, whether solid or liquid, should be among all local governments priorities. Because the investment in peri-urban areas is inferior to the urban ones, actions focused on eliminating the diffused pollution sources like inappropriate domestic waste disposal and its impact are essential. Therefore, this study intended to demonstrate among local communities that cultivation and the solid and liquid wastes could be sustainably combined. Permaculture activities were carried out: in a familiar way with children from the Escola Elementar Nova Vida, in Pitimbu Municipality-PB; solid waste was reused in handmade artifact in the maroon community of Ipiranga, in the Gurugi district, Conde, PB; and deployment of ecological tanks, with banana circles, for the treatment of greywater, in Engenho Velho, and the evapotranspiration tanks (green tanks for blackwater treatment) in the Condomínio Amizade in João Pessoa, PB. Motivating the communities to develop the proposed activities was a challenge, and only a few people participated. However, after the implementation of the activities there was a general feeling of satisfaction among the participants. The goal of this project was the adoption of Environmental Social technics by specific communities that would later on work as models to be copied by other communities. We have achieved the purpose of the project as we noticed that not only the methodologies have improved the communities where they were implemented, but also that those were spread and adopted by other communities, showing the appropriation of these technologies by the people of these communities. / Técnicas permaculturais são alternativas que vêm sendo desenvolvidas, no intuito de produzir uma cultura permanente que reintegra o ser humano ao ambiente, levando em consideração a observação do meio natural e a experimentação no sentido de aprimorar os diversos fatores que estão auxiliando a degradar a vida e a natureza. Dessa forma, busca restituir o equilíbrio natural que as ações humanas têm quebrado. A falta de saneamento básico tem trazido muitas consequências negativas, tanto à saúde humana quanto ao ambiente, deste modo, gerenciar os resíduos gerados, sejam sólidos ou líquidos deveria estar entre as prioridades dos governos municipais. Como em regiões periurbanas há menos investimento nesta área que nos centros urbanos, ações que diminuam os impactos dos resíduos, no sentido de eliminar as fontes de poluição difusa, como a destinação inadequada do lixo e dos esgotos domésticos são essenciais. Assim, este trabalho visou realizar ações demonstrativas em comunidades da Paraíba, de como os resíduos sólidos, os líquidos e a plantação podem ser integrados de forma sustentável. Foram desenvolvidas atividades de Permacultura, com o plantio de hortas agroecológicas, junto aos alunos da Escola Municipal de Ensino Fundamental de Nova Vida, no Assentamento Nova Vida em Pitimbu; de reuso de resíduos sólidos à produção artística na comunidade quilombola de Ipiranga, no distrito de Gurugi em Conde; e a implantação de fossas ecológicas com a construção de Círculos de Bananeiras no Vale do Gramame, para o tratamento de águas cinzas, e do Tanque de Evapotranspiração no Condomínio Amizade, para o tratamento de águas negras, em João Pessoa. Deparou-se com a dificuldade de articulação comunitária nos locais e apenas poucas pessoas participaram das atividades propostas. No entanto, após as ações desenvolvidas, verificou-se a satisfação de todos os que participaram destas. Como o objetivo deste trabalho foi a implementação de algumas Tecnologias Socioambientais nas comunidades, para servir de modelo para a sua replicação por outros comunitários, pode-se dizer que para além dos resultados positivos da implantação das tecnologias por si, visto que melhorou bastante as áreas em que foram aplicadas, pela eliminação de esgotos a céu aberto, houve a disseminação das técnicas permaculturais que já foram reaplicadas em outros locais, o que demonstra a apropriação destas metodologias pelas pessoas das comunidades.
256

Estabiliza??o de ?rbitas peri?dicas inst?veis utilizando controle por modos deslizantes com compensa??o adaptativa / Stabilization of unstable periodic orbits using sliding Mode control with adaptive compensation

Rebou?as, Geraldo Francisco de Souza 28 January 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2015-11-18T12:07:15Z No. of bitstreams: 1 GeraldoFranciscoDeSouzaReboucas_DISSERT.pdf: 41675887 bytes, checksum: 92f7a0b24621624c569a4386460bbfbd (MD5) / Approved for entry into archive by Elisangela Moura (lilaalves@gmail.com) on 2015-11-18T14:54:47Z (GMT) No. of bitstreams: 1 GeraldoFranciscoDeSouzaReboucas_DISSERT.pdf: 41675887 bytes, checksum: 92f7a0b24621624c569a4386460bbfbd (MD5) / Made available in DSpace on 2015-11-18T14:54:47Z (GMT). No. of bitstreams: 1 GeraldoFranciscoDeSouzaReboucas_DISSERT.pdf: 41675887 bytes, checksum: 92f7a0b24621624c569a4386460bbfbd (MD5) Previous issue date: 2014-01-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / O comportamento ca?tico tem sido amplamente observado na natureza, tanto em fen?menos f?sicos e qu?micos quanto em sistemas biol?gicos, aparecendo tamb?m em diversas aplica??es de engenharia, se manifestando tanto em simples osciladores mec?nicos quanto nos mais avan?ados sistemas de comunica??o. No que concerne aos sistemas mec?nicos, comumente os efeitos das n?o-linearidades sobre o comportamento din?mico do sistema s?o de car?ter indesej?vel, o que tem motivado o desenvolvimento de estrat?gias de compensa??o. No entanto, recentemente tem-se verificado a exist?ncia de situa??es nas quais a riqueza da din?mica n?o-linear torna-se atraente. Devido a sua grande sensibilidade ?s condi??es iniciais, os sistemas ca?ticos podem sofrer mudan?as consider?veis por meio de pequenas varia??es em seus par?metros, o que ? extremamente favor?vel quando desejamos dar maior flexibilidade ao sistema controlado. Nesse sentido, analisaremos as varia??es apresentadas pelo oscilador de Duffing, em especial de suas ?rbitas peri?dicas inst?veis e se??o de Poincar? frente a altera??es percentuais de $\pm$ 5, $\pm$ 1 e +10 \% no valor nominal do param?tro que multiplica o termo c?bico. Em seguida, sabendo que o gasto de energia para estabilizar OPIs ? m?nimo, analisaremos o esfor?o de controle necess?rio para controlar e estabilizar tais ?rbitas, que pertencem a modelos diferentes do oscilador de Duffing nominal. Devido a sua robustez a incertezas par?metricas utilizaremos um controlador por modos deslizantes com fun??o de satura??o e compensa??o adaptativa por s?rie de Fourier. / The chaotic behavior has been widely observed in nature, from physical and chemical phenomena to biological systems, present in many engineering applications and found in both simple mechanical oscillators and advanced communication systems. With regard to mechanical systems, the effects of nonlinearities on the dynamic behavior of the system are often of undesirable character, which has motivated the development of compensation strategies. However, it has been recently found that there are situations in which the richness of nonlinear dynamics becomes attractive. Due to their parametric sensitivity, chaotic systems can suffer considerable changes by small variations on the value of their parameters, which is extremely favorable when we want to give greater flexibility to the controlled system. Hence, we analyze in this work the parametric sensitivity of Duffing oscillator, in particular its unstable periodic orbits and Poincar?e section due to changes in nominal value of the parameter that multiplies the cubic term. Since the amount of energy needed to stabilize Unstable Periodic Orbits is minimum, we analyze the control action needed to control and stabilize such orbits which belong to different versions of the Duffing oscillator. For that we will use a smoothed sliding mode controller with an adaptive compensation term based on Fourier series.
257

Caracter?sticas psicol?gicas do paciente obeso grave e suas implica??es p?s-operat?rias na cirurgia bari?trica

Venzon, Clarissa Nesi 19 September 2013 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-09T22:56:26Z No. of bitstreams: 1 ClarissaNesiVenzon_DISSERT.pdf: 2129281 bytes, checksum: 8bd476fcced3f9ebacf23659cc288b48 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-10T23:32:29Z (GMT) No. of bitstreams: 1 ClarissaNesiVenzon_DISSERT.pdf: 2129281 bytes, checksum: 8bd476fcced3f9ebacf23659cc288b48 (MD5) / Made available in DSpace on 2016-03-10T23:32:29Z (GMT). No. of bitstreams: 1 ClarissaNesiVenzon_DISSERT.pdf: 2129281 bytes, checksum: 8bd476fcced3f9ebacf23659cc288b48 (MD5) Previous issue date: 2013-09-19 / A Obesidade ? uma doen?a cr?nica de etiologia multifatorial que se caracteriza por excesso de gordura corp?rea, cujo grau varia de acordo com o ?ndice de Massa Corporal (IMC=m2 /kg). A obesidade grave ? caracterizada por IMC>40, frequentemente associada a altera??es cl?nicas end?crino-metab?licas ou mec?nicas e transtornos psicol?gicos; o quadro de Compuls?o Alimentar Peri?dica (CAP) tem alta incid?ncia nesta popula??o. A cirurgia Bari?trica vem sendo o tratamento de escolha para a obesidade grave, por apresentar r?pido emagrecimento e melhora nas condi??es cl?nicas. T?m-se verificado aumento de peso ap?s dois anos de cirurgia em 20% a 30% dos casos. O objetivo geral desta pesquisa ? avaliar caracter?sticas psicol?gicas e comportamentais entre obesos graves submetidos ? Cirurgia Bari?trica do tipo Bypass G?strico h? pelo menos 24 meses. Foram investigados aspectos espec?ficos como, (1) caracter?sticas do funcionamento personalidade e presen?a de transtornos cl?nicos e de personalidade; (2) a incid?ncia de CAP e sua rela??o com perda de peso; (3) a diferen?a entre os grupos em rela??o aos acompanhamentos p?s-cir?rgicos; atividade f?sica, acompanhamento psicol?gico e nutricional. M?todo: 40 adultos (homens e mulheres), com idades entre 23 a 60 anos, submetidos ? cirurgia bari?trica h? pelo menos 24 meses, na cidade de Natal-RN, foram divididos em dois grupos com n= 20, Grupo de Ganho, com perda < 50% do peso excedente inicial, e o Grupo de Perda, com perda >50%. O protocolo de pesquisa foi composto por question?rio biossociodemogr?fico, o m?todo de Rorschach ? Sistema Compreensivo (SC); Invent?rio de Personalidade de Millon (MCMI-III); e Escala de Compuls?o Alimentar Peri?dica (ECAP). Atrav?s do m?todo de Rorschach foram evidenciadas diferen?as significativas entre os dois grupos, relacionadas aos tipos vivenciais (EB), maior presen?a de EB Extratensivo no Grupo Ganho e Intratensivo no Grupo de Perda; e ao descontrole na express?o dos afetos, com eleva??o de respostas de Cor Pura no Grupo Ganho. Em rela??o ? popula??o normativa do SC, a amostra como um todo apresentou maior tend?ncia a experienciar sofrimento ps?quico, auto percep??o denegrida, autocr?tica excessiva, distor??es perceptivas, vulnerabilidade a desenvolver transtornos afetivos e eleva??o da pontua??o na Constela??o de Suic?dio. O MCMI-III indicou maior incid?ncia de transtornos cl?nicos e de personalidade no Grupo Ganho: Transtorno Depressivo e Esquizot?pico, Ansiedade, Distimia, Depress?o Maior; Transtorno do Pensamento, Bipolar- Man?aco e Transtornos de Estresse P?s-Traum?tico. Os resultados da ECAP indicaram diferen?a significativa, com eleva??o de CAP no Grupo de Ganho como tamb?m, entre a gravidade de CAP e presen?a de transtornos cl?nicos e de personalidade. Em rela??o aos acompanhamentos foi encontrada diferen?a significativa no quesito atividade f?sica com mediana elevada no Grupo de Perda. Os grupos ainda se diferenciaram em rela??o ao peso inicial e tempo p?scir?rgico, indicando que quanto maior o peso inicial e tempo percorrido maior o aumento de peso p?s-cir?rgico. Os resultados ainda revelam que os participantes com mais de 3 anos de tempo cirurgia, apresentam eleva??o na presen?a de Transtornos Cl?nicos de Transtorno Depressivo Maior; Transtorno Somatoforme; Distimia. Tais resultados corroboram conclus?es de estudos sobre a rela??o entre CAP p?s-cir?rgico e novo ganho de peso, como tamb?m acerca de maior incid?ncia de transtornos cl?nicos na popula??o obesa grave. Conclui-se que o processo cir?rgico ? apenas uma faceta do tratamento da obesidade grave, e que o acompanhamento p?s-cir?rgico deve receber maior aten??o e ocorrer em longo prazo para a manuten??o n?o s? dos resultados cir?rgicos, como da melhoria da qualidade de vida dos pacientes. / Obesity is a chronic disease that has multi-factorial aetiology, characterized by high degree of body fat; the degree of obesity will vary according to the Body Mass Index (BMI=m2 /kg). The severe degree of obesity is characterized by BMI>40 and it is regularly associated to endocrine-metabolic or mechanic clinical alterations, and to psychological disorders. Binge Eating (BE) results were overly high for this population. The Bariatric Surgery has been the treatment chosen by those diagnosed with severe obesity as this intervention provides prompt outcomes for loss of weight and clinical improvement conditions. However, recent research has acquiesced that after two years between 20% and 30% of people subject to this intervention gained weight. The main objective of this research is to assess the psychological and behavioral characteristics of those diagnosed with severe obesity that have been subject to Gastric Bypass Surgery in the past 24 months. Specific aspects were investigated: (1) characteristics of different personalities and diagnose of clinic and personality disorders; (2) BE and its relation with loss of weight; (2) the difference between the groups regarding post-surgery care, e.g. physical activity, psychological and dietician input. Method: 40 adults (women and men) aged 23 and 60 year-old who went through a bariatric surgery in the past 24 months, in the city of Natal-RN (Brazil); they were assembled in two groups n=20, Gain group displaying loss of < 50% of their initial surplus of weight, and the Loss group displaying loss of >50%. The research protocol is made of a socio-demographic questionnaire and 3 psychometric instruments: Rorschach ? Comprehensive System; Millon Personality Inventory (MCMI-III); and the Binge Eating Scale (Escala de Compuls?o Alimentar Peri?dica (ECAP). Through Rorschach significant differences between these groups were verified according to the kind of personality (EB) - more EB Extratensivo in Gain group and Intratensivo in Loss group ? and the lack of control to express affect, increasing the answer for Color Pure at Group I. Concerning the people standardization, the sample as a whole tends to show psychic pain, denigrated selfperception, high levels of self-criticism, distorted perceptions, vulnerability to develop mood disorders and high scores regarding Suicide. MCMI-III results showed more clinic and personality disorders in Group I: Depressive Disorder and Schizotypal, Anxiety, Dysthymia, Major Depressive Disorder; Thought Disorder, Bipolar- Manic and Posttraumatic Stress Disorder. In relation to ECAP, the results indicated significant differences, showing increased BE results in Gain group. There were found significant differences between BE severity and the presence of clinic and personality disorders. Concerning the post-surgery care, the observed differences are statistically significant regarding physical activities with median-increased differences in Loss group. There is a difference between the initial weight and the time post-surgery, indicating that the higher the initial weight and the time after the surgery the higher the re-gain of weight post-surgery. Finally, the results show that the participants with more than 3 years of surgery will have Clinic and Major Depressive Disorders; Somatoform Disorder; Dysthymia. These results confirm prior studies related to BE post-surgery and re-gain of weight as well as the proneness of clinic disorders in severe obesity people. That means the results reinforce that the surgery process is a facet of the severe obesity treatment. The post-surgery process needs to be the main focus of attention and have a long-term input to sustain the care of the surgery results and the quality of life of the patients.
258

Caracteriza??o de superf?cies seletivas de frequ?ncia de peri?dicas e n?o-peri?dicas

Ara?jo, Lincoln Machado de 15 December 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-22T00:23:25Z No. of bitstreams: 1 LincolnMachadoDeAraujo_TESE.pdf: 2020947 bytes, checksum: dbf0a95d1c4132541362bdf08093f102 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-22T23:10:55Z (GMT) No. of bitstreams: 1 LincolnMachadoDeAraujo_TESE.pdf: 2020947 bytes, checksum: dbf0a95d1c4132541362bdf08093f102 (MD5) / Made available in DSpace on 2016-03-22T23:10:55Z (GMT). No. of bitstreams: 1 LincolnMachadoDeAraujo_TESE.pdf: 2020947 bytes, checksum: dbf0a95d1c4132541362bdf08093f102 (MD5) Previous issue date: 2014-12-15 / Os ?ltimos anos foram marcados por um grande interesse no uso de superf?cies seletivas de frequ?ncia (FSS), como filtros espaciais, em diversas aplica??es em microondas. Dentre estas, destacam-se as aplica??es em sistemas de telecomunica??es (tais como: comunica??es por sat?lite e radar), antenas de ganho elevado (em estruturas combinadas com antenas planares) e fornos de micro-ondas (dom?sticos e industriais). As FSS s?o geralmente compostas por arranjos peri?dicos bidimensionais, com elementos igualmente espa?ados, que podem ser patches met?licos (impressos em substratos diel?tricos) ou aberturas (perfuradas em superf?cies met?licas finas). Nestas configura??es (de arranjos peri?dicos), as FSS v?m conseguindo atender ?s demandas da ind?stria de telecomunica??es de maneira satisfat?ria. Entretanto, novas demandas v?m encontrando limita??es na tecnologia empregada. Neste contexto, requisitos de filtragem adversos v?m for?ando os projetistas de FSS a utilizarem m?todos de otimiza??o na tentativa de encontrar formatos espec?ficos para seus elementos, por exemplo. Outra alternativa que vem sendo utilizada para aumentar a seletividade das FSS ? o cascateamento, uma t?cnica simples que tem como principal ponto negativo o aumento das dimens?es da estrutura, assim como do seu peso. Este trabalho prop?e o desenvolvimento de uma nova classe de superf?cies seletivas de frequ?ncia (FSS), constitu?das de arranjos quase-peri?dicos (ou n?o-peri?dicos). Resultados de superf?cies seletivas de frequ?ncia n?o-peri?dicas e flex?veis tamb?m ser?o apresentados, mostrando uma nova gama de aplica??es. Portanto, as FSS propostas n?o apresentam periodicidade em rela??o ? posi??o espacial dos seus elementos. As respostas em frequ?ncia destas estruturas foram simuladas utilizando softwares comerciais que implementam m?todos de onda completa. Para valida??o do estudo efetuado, foram constru?dos e medidos prot?tipos das FSS propostas, tendo sido observada uma boa concord?ncia entre os resultados simulados e medidos. S?o apresentadas e comentadas as principais conclus?es deste estudo, al?m de indicadas sugest?es para a sua continuidade. / The past years have seen a great interest in the use of frequency selective surfaces (FSS), as spatial filters, in many microwave applications. Among these, we highlight applications in telecommunication systems (such as satellite communications and radar), high gain antennas (combined with planar antennas) and (home and industrial) microwave ovens. The FSS is usually composed of two-dimensional periodic arrays, with equally spaced elements, which may be metallic patches (printed on dielectric substrates) or aperture (holes in thin metal surfaces). Using periodic arrays, the FSS have been able to meet the demands of the telecommunications industry. However, new demands are finding technological limitations. In this context, adverse filtering requirements have forced designers to use FSS optimization methods to find specific formats of FSS elements. Another alternative that has been used to increase the selectivity of the FSS is the cascaded FSS, a simple technique that has as main drawback the increased dimensions of the structure, as well as its weight. This work proposes the development of a new class of selective surfaces frequency (FSS) composed of quasi-periodic (or non-periodic) arrangements. The proposed FSS have no array periodicity, in relation with the spatial position of their elements. The frequency responses of these structures were simulated using commercial softwares that implement full-wave methods. For the purpose of validation of this study, FSS prototypes were built and measured, being possible to observe a good agreement between simulated and measured results. The main conclusions of this work are presented, as well as suggestions for future works.
259

Produ??o em revista : Representa??o do moderno e do regional na experi?ncia potiguar anos 1920

Costa, Maria Suely da 20 September 2008 (has links)
Made available in DSpace on 2014-12-17T15:07:05Z (GMT). No. of bitstreams: 1 MariaSC.pdf: 599057 bytes, checksum: b990198f00705ee253bffc394c8f7413 (MD5) Previous issue date: 2008-09-20 / This work brings some reading about a few Norte-rio-grandenses writers collaborations published in literary papers which circulated during the third decade of the twentieth century in Brazil, in a way of enlarging the understanding of how the cultural debate was carried out in the years of the definition of the Brazilian Modernism, based on the relationships between literature and culture. Under the genres of prose and poetry, the selected textual collaborations for analysis have brought the traces of a small group of articulated authors in the Brazilian cultural scenery from the 1920 s, concerning the issues of the modern (linked to the modernist renovation) and the regional (under the aspects of the tradition). The set of the analyzed collaborations is representative of a modern-regional cultural practice marked by a tendency either local or cosmopolitan, thus, sharing a large dimension of the formation of the modern literary tradition, marked by different kinds of practices which give form to the project of a collective national awareness. The characterization of the existence of an intellectual field with big links, however with its own characteristics and a certain autonomy, which also gets integrated to the cultural debate of the so-called modernist years through the literary vehicles, gives to these intellectual people a co-participation in the renewing movement in the formation context of the brazilian cultural modernity of the early twentieth century / Esse trabalho traz uma leitura em torno de colabora??es de escritores norte-rio-grandenses publicadas em ve?culos liter?rios que circularam durante a terceira d?cada do s?culo XX, no Brasil, no sentido de ampliar o entendimento de como se deu o debate cultural nos anos de defini??o do modernismo brasileiro, com base nas rela??es ente literatura e cultura. Sob os g?neros da poesia e da prosa, as colabora??es textuais selecionadas para an?lise trazem as marcas de um pequeno grupo de escritores articulados no cen?rio cultural brasileiro dos anos de 1920, em torno das quest?es do moderno (frente ? renova??o modernista) e do regional (sob os aspectos da tradi??o). O conjunto das colabora??es analisadas ? representativo de uma pr?tica cultural moderno-regional, marcada por uma tend?ncia ora local ora cosmopolita, vindo comungar, assim, de uma dimens?o ampla da forma??o da moderna tradi??o liter?ria, marcada por pr?ticas diversas a dar forma ao projeto de uma consci?ncia nacional coletiva. A caracteriza??o da exist?ncia de um campo intelectual com vincula??es amplas, por?m com caracter?sticas pr?prias e uma relativa autonomia, que tamb?m se integra ao debate cultural dos chamados anos modernistas, atrav?s dos ve?culos liter?rios, confere a esses intelectuais uma co-participa??o no movimento renovador no contexto da forma??o da modernidade cultural brasileira do in?cio do s?culo XX
260

Ecological Sanitation : Attitudes Towards Urine Diverting Toilets and Reuse of Nutrients in Peri Urban Areas of Kampala, Uganda. A Case of Kamworkya II Parish

Minze Ngobi, Richard January 2007 (has links)
ABSTRACT Billions of people are living without access to safe hygienic means of personal sanitation. The sanitation gap is wide in developing countries where more people are increasingly becoming urbanised. Sanitation related diseases are some of the leading cause of mortality and morbidity among the population in developing countries especially children under age of 5 years. The responsible institutions are faced with challenge to provide suitable and affordable services to this increasing population. In Uganda, the urban poor are residing in the peri urban areas with inadequate sanitation facilities. The provision of conventional sanitation facilities are seen not be sustainable options due to contamination of both surface and underground water sources, congested housing structure and at the same time makes recycling and reuse of nutrients difficult. This study investigated attitudes towards urine diverting toilets in one of the peri urban areas in Kampala, with the aim of finding out strategies to improve on awareness of ecological sanitation as well as popularise their use as alternative sanitation. Respondents’ views were collected through face to face interviews with 40 household respondents using a semi structured questionnaire and field observations of the household’s toilet in use as well as solid waste disposal. Four focus group discussions and 6 key informant interviews were also performed. The respondents’ acceptance of the urine diverting toilets was relatively positive. Most of the respondents reported that the ecosan toilets are a viable option due to congested housing pattern, desire to own a toilet (for those who never had a toilet before), improved privacy, and convenience among other factors. Respondents who have no urine diverting toilets also preferred urine diverting toilets and expressed their willingness to replicate them. It was also found that residents in Kamwokya II parish prefer a double vault design to one which uses bucket. The findings also reveal that reuse of sanitized urine and faecal matter within the community is not possible since there is no space for urban agriculture. However, the respondents acknowledged a willingness to eat or buy food from a garden fertilized with sanitized urine and faecal matter. It was also found that there are no cultural and religious beliefs against reuse of sanitized urine and faecal matter. Some challenges that affected implementation of the pilot project were people’s reluctance to adopt at the beginning, delayed completion of some facilities and part time employees. Currently there is limited replication of toilets because of low cash income among the residents, delayed completion of some facilities and sceptical views by some residents. Among the difficulties faced in use of toilet include forgetfulness by some people to spray ash after defecating, misplaced water entering the toilet vault during cleaning, children playing with the urine container etc. The provision for anal cleansing for Muslims, squat hole covers, closed urine chamber among others were suggested for system improvements. The study recommends more awareness campaigns through social marketing of toilet and reuse of nutrients, modification of design, government’s commitment and household change of behaviours are fundamental for encouraging more adoption and replication of the toilets.

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