Made available in DSpace on 2014-12-17T14:54:55Z (GMT). No. of bitstreams: 1 FranciscaMSRL_TESE.pdf: 2808012 bytes, checksum: a7e097aeb64526d8b841387c288d8bf8 (MD5) Previous issue date: 2010-04-20 / Universidade Estadual do Rio Grande do Norte / In this research study, in which I discuss the discursive constitution of ethnic-racial identity of black male and female teachers, I understand that the process of identity formation of the subject covers both personal/family and social/professional areas. In it, I propose, in general terms, to analyze the discursive practices present in narratives of black male and female teachers when they look for their social insertion into different social contexts, identifying outbreaks of resistance that are present in their process of ethnicracial identities. The fundamental issue that permeates the survey investigates: how can black male and female teachers behave discursively in the construction of ethnicracial identities in multiple distinct contexts? The theoretical foundations that support this research work come from theoretical fields that complement each other; among them, French Discourse Analysis, Foucault s Theory and cultural studies. These, even with their singularities, are being interlaced by the conception that conceives language as social practice. Methodologically, I adopt an interpretative and qualitative paradigm to examine not only the linguistic repertoires that compose these teachers written narratives written but also the data that were generated by semi-structured interviews. The results show that the subjects, realizing contrary forces that interfere in their process of social inclusion, make use of acetic techniques to (re)signify the history of their lives / Nessa pesquisa em que discuto a constitui??o discursiva de identidades ?tnicorraciais de docentes negros e negras, parto da compreens?o de que o processo de forma??o identit?ria do sujeito abrange tanto a ?rea pessoal/familiar quanto ? social/profissional. Nela, proponho-me, a analisar as pr?ticas discursivas presentes em narrativas de quinze professores/as negros/as residentes nas cidades de Assu e Pend?ncias RN quando buscam sua inser??o em diversas inst?ncias sociais, identificando focos de resist?ncias que atravessam seu processo constitutivo de identidades ?tnicorraciais. A quest?o fundamental que perpassa a pesquisa investiga: Como ser? que professores/as negros/as se posicionam discursivamente na constru??o de identidades ?tnicorraciais nas diversas inst?ncias sociais? Os fundamentos que respaldam a pesquisa adv?m de campos te?ricos que se articulam, entre outros, a AD francesa, teoriza??es foucaultianas e os estudos culturais. Esses, mesmo com suas singularidades, est?o sendo entrela?ados pelo fio condutor que concebe a linguagem enquanto pr?tica social. Metodologicamente, adoto um paradigma qualitativo interpretativista para examinar n?o apenas os repert?rios lingu?sticos que comp?em narrativas escritas por docentes, mas tamb?m os dados gerados pelas entrevistas semiestruturadas. Os dados indiciam que os sujeitos colaboradores, ao perceberem as for?as contr?rias que atravessam seu processo de inser??o social, se utilizam de t?cnicas ac?ticas para (re) significarem suas hist?rias de vida

Made available in DSpace on 2014-12-17T14:55:08Z (GMT). No. of bitstreams: 1 JoseADA.pdf: 1177025 bytes, checksum: 7b60e9ae5f0d99d9f5dfa04052eacd28 (MD5) Previous issue date: 2008-09-05 / The Oil Measurement Evaluation Laboratory (LAMP), located in the Federal University of Rio Grande do Norte (UFRN), has as main goal to evaluate flow and BS&W meters, where the simulation of a bigger number of operation variable in field, guarantees a less uncertain evaluation. The objective of this work is to purpose a heating system design and implementation, which will control the temperature safely and efficiently in order to evaluate and measure it. Temperature is one of the variables which influence the flow and BS&W accurate measurement, directly affecting the fluid viscosity and density in the experiment. To project the heating system it is of great importance to take the laboratory requirements, conditions and current restrictions into consideration. Three alternatives were evaluated: heat exchanger, internal resistance and external resistance. After the analyses are made in order to choose the best alternative for the heating system in the laboratory, control strategies were determined for it, PID control methods in combination with fuzzy logic were used. Results showed a better performance with fuzzy logic than with classic PID / O Laborat?rio de Avalia??o de Medi??o em Petr?leo (LAMP) da Universidade Federal Rio Grande do Norte (UFRN) tem como meta principal avaliar medidores de vaz?o e BS&W,em que a utiliza??o de um maior n?mero de vari?veis de opera??o garante uma avalia??o com menor porcentagem de incertezas. O objetivo deste trabalho foi projetar e implementar um sistema de aquecimento que dar? cobertura ao controle de temperatura, de forma segura e eficiente, para fins de avalia??o e medi??o. A temperatura ? uma das vari?veis que exerce influ?ncia na hora de medir com exatid?o a vaz?o e BS&W, afetando diretamente a viscosidade e a densidade do fluido. Para projetar o sistema de aquecimento foi de vital import?ncia os requisitos do laborat?rio, como condi??es e restri??es atuais. Tr?s alternativas foram avaliadas: trocador de calor, resist?ncias externas e resist?ncias internas. Depois da an?lise feita, a fim de escolher a melhor alternativa para o sistema de aquecimento do laborat?rio, foram determinadas estrat?gias de controle para o mesmo. T?cnicas de controle PID combinadas com l?gica Fuzzy foram implementadas. Os resultados mostraram um melhor desempenho desta estrat?gia de controle comparada com um PID cl?ssico

Made available in DSpace on 2014-12-17T14:57:45Z (GMT). No. of bitstreams: 1 JorgeACB.pdf: 1200156 bytes, checksum: 6960d1645523bff3edb4f23018f4aa4e (MD5) Previous issue date: 2005-10-21 / The production of the red pottery brick, made traditionally with clay, is a technique that is already stabled. However, in spite of the little complexity that involves the conventional process of these bricks production, it are exposed to many problems that begin in the fase of exploration of the mines, the problems get worse because of the lack of the clay's characterization, and they continue through the steps of the dough preparation, conformation of the products, the drying and the burning process. The wastefulness is shown and so is the low quality of the material produced. Among other factors, the high use of energy in the burning makes the cost of this material inaccessible to the low income consumer. Besides this, the destruction of the environment around the mines and the use of native vegetation to produce wood - the most used fuel in the pottery industry - make serious environmental damage. The production technique of a new type of simple brick (adobe), that has low cost and no environmental damage, can be the viable altemative to lower the cost of this part of the civil construction, and, consequently, in the building of cheaper houses. In this paper, the results of the mechanical resistance of the adobe brick are shown, using in its composition, clay, natural vegetable fibers, cement and plaster in a process that is completely handcrafted and manual. It is intented to make clear that are possible alternatives to be put in practice, with the simple process, using "raw earth" that has been used in the construction of houses in thousands of years, trying to solve these severe problems. Analysis and tests were performed to find results that could prove the possibility of the utilization of this kind of material. Other studies are in progress, and the new researches are necessary to enrich this work, but it stays the certainty that there is potential to produce bricks from adobe, as an alternative that has low cost to civil construction / A fabrica??o de tijolos de cer?mica vermelha, produzidos tradicionalmente com argila, ? uma t?cnica que j? est? consolidada. Entretanto, apesar da pouca complexidade que envolve o processo convencional de produ??o desses tijolos, o mesmo est? sujeito a v?rios problemas que iniciam-se na fase da explora??o das jazidas, avolumam-se pela falta de caracteriza??o das argilas, e se estendem pelas etapas de prepara??o da massa, conforma??o de produtos, secagem, e queima. Evidenciam-se os desperd?cios e constata-se a baixa qualidade do material produzido. Entre outros fatores, o alto consumo de energia durante a queima (sinteriza??o), torna o custo deste material pouco acess?vel ao consumidor de baixa renda. Al?m disso, a devasta??o do meio ambiente nas lavras das jazidas e a utiliza??o de vegeta??o nativa para a produ??o de lenha - o combust?vel mais utilizado na ind?stria cer?mica - produz graves danos ambientais. Uma t?cnica de produ??o de um novo tipo de tijolo simples (adobe), de baixo custo e sem danos ambientais, pode ser uma alternativa vi?vel para diminuir o custo desse componente na constru??o civil, e, consequentemente, na constru??o de casas populares. Neste trabalho, s?o discutidos os resultados da resist?ncia mec?nica do tijolo de adobe, utilizando-se na sua composi??o, argila, fibras vegetais naturais, cimento e gesso em um processo totalmente artesanal e manual. Pretende-se deixar evidente que existem alternativas poss?veis de serem postas em pr?tica, com processo simples, utilizando-se "terra crua" que h? mil?nios ? empregada na constru??o de moradias, buscando solu??es para estes graves problemas. An?lises e testes foram realizados para encontrar resultados que pudessem comprovar a possibilidade de utiliza??o desse tipo de material. Outros estudos est?o em desenvolvimento, e novas pesquisas s?o necess?rias para complementar este trabalho, mas fica a certeza de que existe potencialidade para a produ??o de tijolos de adobe, como uma alternativa de baixo custo para a constru??o civil

Made available in DSpace on 2014-12-17T14:57:58Z (GMT). No. of bitstreams: 1 SergioRLT_DISERT.pdf: 4299592 bytes, checksum: e9cf5f819b0edce432f2bda3973896ee (MD5) Previous issue date: 2010-02-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The growing demand in the use of composite materials necessitates a better understanding its behavior to many conditions of loading and service, as well as under several ways of connections involved in mechanisms of structural projects. It is know that most of the structural elements are designed with presence of geometric discontinuities (holes, notches, etc) in their longitudinal sections and / or transversals, and that these discontinuities affect the mechanical response of these elements. This work has aims to analyze a study of the mechanical response, when in the presence geometric discontinuity, of polymer matrix composite laminates (orthophthalic polyester) to the uniaxial tensile test. The geometric discontinuity is characterized by the presence of a center hole in the transversal section of the composite. In this study, different kinds of stacking sequences are tested, with and without the presence of the hole, so as to provide better understanding of the mechanical properties. This sense, two laminates were studied: the first is only reinforced by with seven layers short mats of fiberglass-E (CM) and the second where the reinforcement of fiberglass-E comes in the form of bidirectional fabric (CT), with only four layers. The laminate CT has the presence of anisotropy (sense of continuous fibers with respect to the applied load) as the main parameter influencing its mechanical behavior, behavior this, not observed for the CM. In addition to the mechanical properties was also studied the fracture characteristics developed in each composite laminated. The results also showed that the presence of the hole in the transversal section decreased the ultimate strength of laminates and changed the final characteristic of fracture in all kinds of composite laminated studied / A crescente demanda na utiliza??o de materiais comp?sitos torna imprescind?vel uma melhor compreens?o do seu comportamento frente ?s mais diversas condi??es de carga e servi?o, bem como sob as variadas formas de conex?es (fixa??es) envolvendo mecanismos nos projetos estruturais. Sabe-se que a maioria dos elementos estruturais ? projetada com presen?a de descontinuidades geom?tricas (furos, entalhes, ranhuras, etc) em suas se??es longitudinais e/ou transversais, e que essas descontinuidades alteram a resposta mec?nica desses elementos. Este trabalho tem como objetivo analisar um estudo da resposta mec?nica, quando em presen?a de descontinuidade geom?trica, de laminados comp?sitos de matriz polim?rica/fibras de vidro frente ao ensaio de tra??o uniaxial. A descontinuidade geom?trica ? caracterizada pela presen?a de um furo conc?ntrico na se??o transversal do comp?sito. Nesse estudo, diferentes tipos de configura??es s?o testados, com e sem a presen?a do furo, de forma a proporcionar melhor entendimento das propriedades mec?nicas. Neste sentido, dois laminados comp?sitos polim?ricos foram estudados: o primeiro ? unicamente refor?ado com sete camadas de mantas de fibras curtas de vidro-E (CM) e o segundo onde o refor?o de fibras de vidro-E vem na forma de tecido bidirecional (CT), com apenas quatro camadas. O laminado CT tem a presen?a da anisotropia (sentido das fibras cont?nuas com rela??o ? carga aplicada) como principal par?metro influenciando no comportamento mec?nico do mesmo, comportamento este, n?o observado para o CM. Al?m das propriedades mec?nicas, tamb?m foi estudado as caracter?sticas da fratura desenvolvidas em cada laminado comp?sito. Os resultados mostraram que, em um estudo comparativo, a presen?a do furo conc?ntrico na se??o transversal diminuiu a resist?ncia ?ltima dos laminados e alterou a caracter?stica final da fratura em todos os tipos de laminados comp?sitos estudados

Made available in DSpace on 2014-12-17T14:58:13Z (GMT). No. of bitstreams: 1 FlavioASL_DISSERT.pdf: 2460649 bytes, checksum: bed5dd26e82ea61d687c6641214ac014 (MD5) Previous issue date: 2012-04-27 / Space Science was built using a composite made of plaster, EPS, shredded tires, cement and water. Studies were conducted to thermal and mechanical resistance. Inside the mold EPS plates were placed in order to obtain a higher thermal resistance on the wall constructed, as well as to give it an end environmentally friendly in view of both the tire and the EPS occupy a large space in landfills and year need to be degraded when released into the environment. Compression tests were performed according to ABNT blocks to seal, measurements of the temperature variation in the external and internal walls using a laser thermometer and check the temperature of the indoor environment using a thermocouple attached to a digital thermometer. The experiments demonstrated the heat provided by the composite values from the temperature difference between the internal and external surfaces on the walls, reaching levels of 12.4 ? C and room temperature in the interior space of the Science of 33.3 ? C, remaining within the zone thermal comfort for hot climate countries. It was also demonstrated the proper mechanical strength of such a composite for sealing walls. The proposed use of the composite can contribute to reducing the extreme housing shortage in our country, producing popular homes at low cost and with little time to work / Foi constru?do o Espa?o Ci?ncia utilizando um comp?sito constitu?do de gesso, EPS, pneu triturado, cimento e ?gua. Foram realizados estudos de resist?ncias t?rmica e mec?nica. No interior do molde foram colocadas placas de EPS com o intuito de se obter uma maior resist?ncia t?rmica nas paredes constru?das, como tamb?m dar-lhe um fim ecologicamente correto, tendo em vista que tanto o pneu quanto o EPS ocupam grande espa?o em aterros sanit?rios e necessitam de anos para serem degradados quando lan?ados ao meio ambiente. Foram realizados ensaios de compress?o segundo as normas da ABNT para blocos de veda??o, medi??es da varia??o de temperatura nas paredes externas e internas utilizando um term?metro a laser e verifica??o da temperatura do ambiente interno utilizando um termopar acoplado a um term?metro digital. Os experimentos t?rmicos demonstraram os valores proporcionados pelo comp?sito a partir da diferen?a de temperatura entre as superf?cies internas e externas nas paredes, alcan?ando n?veis de 12,4?C e temperatura ambiente no interior do espa?o ci?ncia, de 33,3 ?C ficando dentro da zona de conforto t?rmico para pa?ses de clima quente. Demonstrou-se tamb?m apropriada resist?ncia mec?nica de tal comp?sito para paredes de veda??o. A utiliza??o do comp?sito proposto pode contribuir para a diminui??o do extremo d?ficit habitacional do nosso pa?s, produzindo resid?ncias populares a baixo custo e com pequeno tempo de obra

Made available in DSpace on 2014-12-17T15:06:55Z (GMT). No. of bitstreams: 1 AluisioBO_DISSERT.pdf: 1395854 bytes, checksum: 09482d217978d322012e8895ee45d9fe (MD5) Previous issue date: 2012-04-03 / Always seen by others eyes, unknown of the languages and other "realities" that constitute, the Africa, specially Mozambique, now (re)invent itself, palimpsestly, in narratives of your griots, narrators and/or storytellers. Our thesis intend, by the review of novel Under the frangipani, to demonstrate that the mozambican writer Mia Couto intends to participate the (re)construction of a devasted nation by war and conflicts, based on belief that the role writer "is to create requisites of a more african thought, to the assessment of your place and your time won't be done from categories created by others" (COUTO, 2005). At first, we show how the mozambican literary system consists itself; then, the insertion of coutian narrative against the prevalence tradition and, also, by the analysis of the constituent elements of the chosen novel, the way how made piece of resistance to reification, objectification of the individuald in the contemporary world , your writing will be present in this sharing of the sensitive. Besides Mia Couto, in our work we'll counting on the lessons of Candido, Noa, Hernandez, Adorno, Paz, Fonseca, Secco, among others studious of african narrative and, specially, Mozambique narrative / Sempre vista pelos olhos de fora, desconhecedores das l?nguas e outras realidades que a constitui, a ?frica, notadamente Mo?ambique, agora se (re)inventa, palimpsesticamente, nas narrativas de seus griots, narradores e/ou contadeiros de est?rias. Nossa disserta??o pretende, pela an?lise cr?tica do romance A varanda do frangipani, demonstrar que o escritor mo?ambicano Mia Couto tenciona participar do processo de (re)constru??o de uma na??o devastada por guerras e conflitos, baseado na cren?a de que o papel do escritor ? o de criar os pressupostos de um pensamento mais africano, para que a avalia??o do seu lugar e do seu tempo deixe de ser feita a partir de categorias criadas pelos outros (COUTO, 2005). Inicialmente, demonstraremos como o sistema liter?rio mo?ambicano se constituiu; em seguida, a inser??o da narrativa coutiana ante a tradi??o imperante e, por fim, pela an?lise dos elementos constituintes do romance escolhido, o modo como feito pe?a de resist?ncia ? reifica??o, ? coisifica??o do indiv?duo no mundo contempor?neo , a sua escritura se far? presente nesta partilha. Al?m de Mia Couto, contaremos em nossa empreitada com as li??es de Candido, Noa, Hernandez, Adorno, Paz, Fonseca, Secco, dentre outros estudiosos da narrativa e da narrativa africana de l?ngua portuguesa, notadamente a mo?ambicana

Made available in DSpace on 2014-12-17T15:07:10Z (GMT). No. of bitstreams: 1 CassiaFMS_TESE.pdf: 3187053 bytes, checksum: 7e5d2fd083a136c82403cb120f2d3736 (MD5) Previous issue date: 2010-11-22 / Universidade Estadual do Rio Grande do Norte / This thesis analyses the poetry of Jo?o Lins Caldas (1888-1967), in Brazilian literature context, aiming at describing and understanding the main features of his poetry. Thus, this research presents a corpus to be worked on: the poems in Poeira do c?u e outros poemas (2009). Our study is characterized by a biographical, historiographical and critical tendency, by trying to organize the manuscripts of the author and biographical aspects while analyzing his poems. It is showed the relation between Brazilian poetry written by some authors, since the parnasianism and symbolism period until the twentieth century. On the one hand, our analysis is based on the ideas and criticism by Antonio Candido (2006; 2002; 1985), discussing the process of formation of Brazilian literature and the procedure to analyse poetry. It is also based on the concept of poetry and resistance, developed by Alfredo Bosi (2000; 2002), and the notion of Brazilian matter, identified by Roberto Schwarz (1987, 1997, 1999). On the other hand, this work focuses on melancholy under the theoretical ideas of authors such as Aristotle (1998), Walter Benjamin (1984), Jaime Ginzburg (1997) and Moacyr Scliar (2003). This focus on melancholy contributes to a better understanding of one of the main themes found in the poems analysed. By studying the poetry of Jo?o Lins Caldas, it was perceived the relevance of melancholy and resistance in his verses. This can be seen in his dissonant language, characterized by the broken syntax in his verses, as well as contradictory images and complex meanings in his poetry. This causes the effect of unfamiliarity on the reader. His poetry is the result of a style that finds its place in the best moment of modern Brazilian poetry and reveals its singularity through the inverted syntax with powerful themes such as love, death, pain, delusion, loss, memory, nature and God. All of them are aspects of Brazilian historicity. Finally, the work of Jo?o Lins Caldas is part of a multifaceted poetry / Esta pesquisa situa e analisa a poesia de Jo?o Lins Caldas (1888-1967) no contexto da literatura brasileira, visando tra?ar e compreender as principais linhas que a comp?em. Para isso, toma como corpus os poemas reunidos em Poeira do c?u e outros poemas (2009). O estudo caracteriza-se por um vi?s biogr?fico, historiogr?fico e cr?tico, ? medida que objetiva delinear um perfil biogr?fico do poeta, organizar os seus manuscritos e realizar uma an?lise de sua poesia. Assim sendo, estabelecem-se rela??es com a poesia brasileira de alguns autores, desde o per?odo parnasiano-simbolista ao modernismo no s?culo XX. As an?lises fundamentam-se, por um lado, nos estudos de Candido (2006; 2002; 1985), em que discute o processo de forma??o da literatura brasileira e os procedimentos de an?lise de poesia, no conceito de poesia-resist?ncia apontado por Bosi (2000; 2002) e na no??o de mat?ria brasileira identificada por Schwarz (1987, 1997, 1999). Por outro, o enfoque da melancolia, sob a perspectiva te?rica de v?rios autores como Arist?teles (1998), Benjamin (1984), Ginzburg (1997) e Scliar (2003), contribui para a compreens?o de uma das principais tem?ticas presentes na l?rica do poeta. O estudo de sua po?tica indica que ela se caracteriza pela melancolia e pela resist?ncia, cuja express?o formal se d? por meio de uma linguagem dissonante: sintaxe arrevesada e invertida, cortes de sentido, imagens paradoxais, provocando estranhamento no leitor. O resultado ? um estilo que, al?m de dialogar com o melhor da produ??o po?tica moderna, revela sua peculiaridade por meio dessa forma invertida em que se entrela?am temas fortes, como a morte, o amor, a dor, o desencanto, a perda, a mem?ria, a natureza, Deus, aspectos da historicidade brasileira, dentre outros, configurando-se, portanto, em uma l?rica multifacetada

Made available in DSpace on 2014-12-17T15:16:08Z (GMT). No. of bitstreams: 1 ElineSC_DISSERT.pdf: 664504 bytes, checksum: b8717b65139d394f647bab467e677d22 (MD5) Previous issue date: 2010-06-30 / The results of studies about the ideal resistance training intensity for reduction of resting blood pressure levels, as well as this type of training to increase the functional capacity of hypertensive older women are still unclear, since the few investigations usually analyze young individuals normotensive, and the literature lacks precise information in elderly hypertensive subjects. Objectives: To determine the effect of two resistance training intensities on resting blood pressure and the effect of resistance training on functional capacity in elderly women with systemic arterial hypertension, analyzing these variables before and after eight weeks of intervention. Methods: Patients underwent eight weeks of resistance training, with a frequency of three times per week on alternate days, in the afternoon. The exercises performed were: leg press, bench press, knee extension, lat pull-down, knee flexion, shoulder abduction, standing cable hip abduction and biceps curl. Results: It was found that patients who underwent training with moderate resistance, showed a reduction on resting values of diastolic blood pressure (DBP) p<0.03 and of mean arterial pressure (MAP) p<0.03. Patients who underwent mild resistance training showed reduction in resting values of MAP (p<0.03) and a tendency to decrease in DBP (p<0.06). With regard to functional capacity, the results showed significant increase in the strength of arms and legs, agility and aerobic endurance (p<0.001) and maintaining flexibility (p>0.05). Conclusion: The data indicated that both mild and moderate resistance training, even when started in old age, promoted cardiovascular benefits and also improve the functional capacity of hypertensive older women. / Os resultados dos estudos sobre a intensidade ideal do treinamento resistido para redu??o dos n?veis press?ricos de repouso, assim como, desse tipo de treinamento sobre o aumento da capacidade funcional de idosas hipertensas ainda s?o obscuros, uma vez que as poucas investiga??es realizadas geralmente analisam indiv?duos jovens normotensos, sendo a literatura carente de informa??o precisa em sujeitos idosos hipertensos. Objetivos: Verificar a repercuss?o de duas intensidades de treinamento resistido sobre a press?o arterial de repouso al?m do efeito do treinamento resistido na capacidade funcional de idosas portadoras da HAS (hipertens?o arterial sist?mica) analisando estas vari?veis antes e ap?s oito semanas de interven??o. M?todos: As pacientes realizaram oito semanas de treinamento resistido, com freq??ncia de tr?s vezes por semana em dias alternados, no per?odo vespertino. Os exerc?cios realizados foram respectivamente: leg press, supino reto, extens?o de joelhos puxada frontal, flex?o de joelhos, abdu??o de membros superiores, abdu??o unilateral de quadril e rosca direta com barra. Resultados: Verificou-se que as pacientes que realizaram treinamento com resist?ncia moderada, apresentaram redu??o tanto nos valores de repouso da press?o arterial diast?lica (PAD) p<0,03 como na press?o arterial m?dia (PAM) p<0,03. As pacientes que realizaram treinamento leve apresentaram redu??o nos valores de repouso da PAM (p<0,03) e tend?ncia ? redu??o na PAD (p<0,06). Quanto ? capacidade funcional, os resultados mostraram aumento significativo da for?a de membros superiores e inferiores, agilidade e endurance aer?bica (p<0,001) e manuten??o da flexibilidade (p>0,05). Conclus?o: Os dados mostraram que tanto o treinamento resistido moderado quanto o leve, mesmo quando iniciados na terceira idade, promoveram benef?cios cardiovasculares e tamb?m na capacidade funcional de idosas hipertensas.

Made available in DSpace on 2014-12-17T15:34:44Z (GMT). No. of bitstreams: 1 RenataMAC_DISSERT.pdf: 1125273 bytes, checksum: 6bd33833f33ca21674933995a1ccf14a (MD5) Previous issue date: 2012-02-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The aim of this study was to evaluate and characterize phenotypically goats with different levels of resistance to gastrointestinal nematodes. For a period of 93 days, 60 F2 goats originated from ? Saanen and ? Anglo- nubian animals were kept in the same area of pasture. Every seven days, feces and blood were collected for eggs per gram counts of feces (EPG) and cultures of feces and to determinate the number of eosinophils, packed cell volume and total plasma protein, respectively. On the same day, the animals were weighed and submitted to body score condition and FAMACHA method to worm control. Based on the average of EPG, the twelve animals with the highest average (susceptible group) and the twelve animals with the lowest average of EPG (resistant group) were selected, slaughtered and necropsied to recovery, counting andparasites identification. The resistant animals present lower EPG mean (P <0.0001) and 4.7 folder less parasites than susceptible animals. The resistant group presented higher mean packed cell volume (26.48%) and total plasma protein (6.24 g / dl) than susceptible one (24,04% e 5,82g/dl, respectively). The average number of eosinophils was similar in both groups The Haemonchus sp. was the most prevalent in the culture of feces, followed by Trischostrongylus sp. and Oesophagostomum sp.. The counting of nematodes in the abomasum of susceptible group was higher than in resistant one. The species identified were H. contortus in abomasums and T. colubriformis in small intestine. It can be concluded that EPG, packed cell volume and total plasma protein were useful phenotypic markers to identify animals as resistant and susceptible to gastrointestinal nematodes infections / O presente trabalho teve como objetivo de avaliar e caracterizar fenotipicamente caprinos com diferentes n?veis de resist?ncia a nematoides gastrintestinais. Em um per?odo de 93 dias, 60 caprinos F2 oriundos do cruzamento de animais ? Saanen e ? Anglo-nubiano foram mantidos em uma mesma ?rea de pastagem cultivada irrigada de capim Tanz?nia (Panicum maximum Jacq. Cv Tanz?nia). A cada sete dias, fezes e sangue foram coletados para contagem de ovos por grama de fezes (OPG), coproculturas, contagem de eosin?filos, determina??o de volume globular e prote?na plasm?tica total, respectivamente. No mesmo dia das coletas, os animais foram pesados e avaliados quanto ao escore da condi??o corporal e grau de anemia com aux?lio no cart?o FAMACHA. Com base na m?dia de OPG, os doze animais com as maiores m?dias de OPG (grupo suscept?vel) e os doze animais com as menores m?dias de OPG (grupo resistente) foram identificados e selecionados para serem abatidos e necropsiados para a recupera??o, contagem e identifica??o dos parasitos presentes. Os animais pertencentes ao grupo resistente apresentaram menor m?dia de OPG (P<0,0001) e 4,7 vezes menos parasitos adultos do que os animais do grupo suscept?vel. O grupo resistente obteve maior m?dia de volume globular (26,48%) e prote?na plasm?tica total (6,24 g/dl) do que os animais suscept?veis (24,04% e 5,82g/dl, respectivamente). A m?dia de eosin?filos foi semelhante nos dois grupos .O g?nero Haemonchus foi o mais prevalente a nas coproculturas, seguido por Trischostrongylus e Oesophagostomum. A contagem de nematoides foi maior no abomaso do grupo suscept?vel do que no grupo resistente. As esp?cies identificadas foram H. contortus no abomaso e T. colubriformis no intestino delgado. Conclui-se que OPG, volume globular e prote?na plasm?tica total foram marcadores fenot?picos eficientes para identificar animais resistentes e suscept?veis ?s infec??es causadas por nematoides gastrintestinais

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-03-20T17:21:11Z No. of bitstreams: 1 CamillaDeMedeirosDantasAzevedo_TESE.pdf: 4219113 bytes, checksum: 435317fad552ba84e55910c905f4e93f (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-03-22T12:38:32Z (GMT) No. of bitstreams: 1 CamillaDeMedeirosDantasAzevedo_TESE.pdf: 4219113 bytes, checksum: 435317fad552ba84e55910c905f4e93f (MD5) / Made available in DSpace on 2018-03-22T12:38:32Z (GMT). No. of bitstreams: 1 CamillaDeMedeirosDantasAzevedo_TESE.pdf: 4219113 bytes, checksum: 435317fad552ba84e55910c905f4e93f (MD5) Previous issue date: 2017-10-10 / As propriedades mec?nicas dos materiais comp?sitos, das mais diversas aplica??es industriais, podem ser reduzidas significativamente pela ocorr?ncia de impactos de baixas velocidades. Esses impactos podem provocar danos internos no material comprometendo sua integridade. Assim, o presente estudo tem como objetivo fazer uma an?lise experimental da resist?ncia residual ? flex?o em tr?s pontos e compress?o ap?s o impacto (CAI), de dois tipos de laminados comp?sitos de matriz polim?rica ortoft?lica, sendo um deles refor?ado a com 7 camadas de tecido bidirecional de Vidro E (CV) e o outro refor?ado com 7 camadas de tecido bidirecional de Kevlar 49 (CK), sujeitos a impactos de baixa velocidade. Esse estudo ? de grande import?ncia pelo fato de tentar conduzir ao aparecimento prematuro de instabilidade estrutural e a consequente restri??o do seu uso. A energia utilizada nesse trabalho para os dois tipos de laminados foi de aproximadamente 96J. Al?m disso, para o material comp?sito refor?ado com fibra de kevlar, foram feitos sucessivos impactos com a mesma energia verificando sua influ?ncia nas propriedades do laminado. Sendo aplicadas 5 vezes, e 10 vezes a energia m?xima de 96J. Como resultado verificou-se que no laminado CV, tanto as propriedades de compress?o como de flex?o em tr?s pontos, a resist?ncia se manteve praticamente inalterada enquanto que o m?dulo teve uma diminui??o depois do impacto. J? no laminado CK houve um decr?scimo tanto nas propriedades de compress?o como flex?o em tr?s pontos ap?s o impacto. Essa perda da integridade desses materiais pode ser justificada pela ocorr?ncia de delamina??o nas interfaces dos comp?sitos. / The mechanical properties of the composite materials, used in the most diverse industrial applications, can be significantly reduced by the occurrence of low speed impacts. These impacts can cause internal damage to the material and compromise its integrity. Thus, the present study aims to perform an experimental analysis of the residual resistance to three-point flexural test and compression after impact (CAI), in two types of composite laminates of orthophthalic polymeric matrix, being one of them reinforced with 7 layers of E-Glass bidirectional tissue (CV) and the other reinforced with 7 layers of Kevlar 49 bidirectional tissue (CK), subject to low speed impacts. This study is of great importance because it tries to lead to the premature appearance of structural instability and the consequent restriction of its use. The energy used in this work for the two types of laminates was approximately 96J. In addition, for the Kevlar fiber reinforced composite material, were made successive impacts with the same energy being checked its influence on the properties of the laminate, where it was tested with a repetition of 5 times and 10 times the maximum energy of 96J.As result, it was found that in the CV laminate, both in the compression properties and three-point flexural properties, the resistance remained practically unchanged while the modulus had a decrease after impact. In the CK laminate, there was a decrease both in compression properties and three-point flexural properties after impact. This integrity loss of these materials can be justified by the occurrence of delamination at the interfaces of the composites.