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

Prospec??o tecnol?gica para gera??o de energia e?lica

Falani, Samira Yusef Ara?jo de 24 October 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-05T19:01:21Z No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-11T21:06:30Z (GMT) No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) / Made available in DSpace on 2016-01-11T21:06:30Z (GMT). No. of bitstreams: 1 SamiraYusefAraujoDeFalani_DISSERT.pdf: 2393333 bytes, checksum: 99da44b14830eda42de8cdd875057803 (MD5) Previous issue date: 2014-10-24 / A acelera??o das mudan?as tecnol?gicas e o processo de globaliza??o t?m intensificado a competi??o e a necessidade de novos produtos (bens e servi?os), resultando na crescente preocupa??o das organiza??es no desenvolvimento de avan?os tecnol?gicos, econ?micos e sociais. O presente trabalho objetiva apresentar um panorama global do desenvolvimento das tecnologias relacionadas ? energia e?lica e projetar suas tend?ncias. Para conduzir esta pesquisa, faz-se (i) a revis?o bibliogr?fica sobre inova??o tecnol?gica, m?todos de prospec??o tecnol?gica e fundamentos da energia e?lica; (ii) a an?lise de patentes, apresentando o panorama atual da tecnologia estudada, por meio da busca de informa??es em bancos de patentes; e (iii) a elabora??o do mapa da evolu??o tecnol?gica dos aerogeradores e constru??o da tend?ncia futura a partir de informa??es da literatura e not?cias do setor estudado. A etapa (ii) permitiu o estudo de 25.644 patentes entre os anos 2003 a 2012, no qual os EUA e China lideram o ranking de depositantes e a empresa americana General Electric e a japonesa Mitsubishi apresentam-se como os maiores detentores da tecnologia e?lica. A etapa (iii) analisou e identificou que a maioria das inova??es apresentadas na evolu??o tecnol?gica da energia e?lica s?o inova??es incrementais de produto para o mercado. A proposta de tend?ncias futuras mostra que os aerogeradores do futuro tendem a ser de eixo horizontal, s?ncrono, com a nacele mais alta que 194m e de di?metro do rotor superior a 164m, possuindo gera??o superior a 7,5MW. Os materiais utilizados nas p?s ser?o novos materiais com caracter?sticas de baixa densidade e alta resist?ncia. As torres est?o com tend?ncia h?brida de materiais, aliando o a?o ao concreto. Essa disserta??o busca cobrir a lacuna existente na academia sobre a utiliza??o de t?cnicas de prospec??o tecnol?gica para o setor de energia e?lica, por meio do reconhecimento de que utilizar-se da an?lise de patentes, an?lise de artigos cient?ficos e not?cias da ?rea, proporcionam conhecimento sobre o setor e que influencia na qualidade das decis?es de investimento em P&D e, consequentemente, a melhora da efici?ncia e efic?cia da gera??o de energia e?lica / The acceleration of technological change and the process of globalization has intensified competition and the need for new products (goods and services), resulting in growing concern for organizations in the development of technological, economic and social advances. This work presents an overview of the development of wind energy-related technologies and design trends. To conduct this research, it is (i) a literature review on technological innovation, technological forecasting methods and fundamentals of wind power; (ii) the analysis of patents, with the current technology landscape studied by means of finding information in patent databases; and (iii) the preparation of the map of technological development and construction of wind turbines of the future trend information from the literature and news from the sector studied. Step (ii) allowed the study of 25 644 patents between the years 2003-2012, in which the US and China lead the ranking of depositors and the American company General Electric and the Japanese Mitsubishi stand as the largest holder of wind technology. Step (iii) analyzed and identified that most of the innovations presented in the technological evolution of wind power are incremental product innovations to market. The proposed future trends shows that the future wind turbines tend to have a horizontal synchronous shaft, which with the highest diameter of 194m and 164m rotor nacelle top, the top having 7,5MW generation. The materials used for the blades are new materials with characteristics of low density and high strength. The towers are trend with hybrid materials, uniting the steel to the concrete. This work tries to cover the existing gap in the gym on the use of technological forecasting techniques for the wind energy industry, through the recognition that utilize the patent analysis, analysis of scientific articles and stories of the area, provide knowledge about the industry and influencing the quality of investment decisions in R & D and hence improves the efficiency and effectiveness of wind power generation
102

Perfil imunol?gico associado ? susceptibilidade, resist?ncia e cura na infec??o por Leishmania ( Leishmania ) infantum

Galv?o, Joanna Gardel Valverde 10 October 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-13T13:01:42Z No. of bitstreams: 1 JoannaGardelValverdeGalvao_TESE.pdf: 4813874 bytes, checksum: 794cef0c5d96742ddc842b9b54b284cc (MD5) / Approved for entry into archive by Elisangela Moura (lilaalves@gmail.com) on 2016-01-15T15:01:19Z (GMT) No. of bitstreams: 1 JoannaGardelValverdeGalvao_TESE.pdf: 4813874 bytes, checksum: 794cef0c5d96742ddc842b9b54b284cc (MD5) / Made available in DSpace on 2016-01-15T15:01:19Z (GMT). No. of bitstreams: 1 JoannaGardelValverdeGalvao_TESE.pdf: 4813874 bytes, checksum: 794cef0c5d96742ddc842b9b54b284cc (MD5) Previous issue date: 2014-10-10 / A leishmaniose visceral (LV) ? end?mica no Brasil, sendo a regi?o nordeste a que apresenta maior incid?ncia, apesar de nos ?ltimos 30 anos ter aumentado o n?mero de casos em outras regi?es do pa?s. A LV na Am?rica Latina ? resultante da infec??o por Leishmania infantum. No entanto, nem todas as pessoas infectadas desenvolvem doen?a; na verdade, a maioria apresenta resolu??o espont?nea da infec??o sem sintomas caracter?sticos de LV. Tradicionalmente a avalia??o do perfil imunol?gico tem sido realizada utilizando a reestimula??o de c?lulas mononucleares de sangue perif?rico em cultura. Esses estudos revelaram que pacientes com LV apresentavam inibi??o tanto da prolifera??o linfocit?ria quanto da resposta pr?-inflamat?ria anti-Leishmania. O presente trabalho teve por objetivo avaliar a resposta imune na LV sintom?tica, na cura p?s-tratamento e assintom?tica. Para isso, analisamos caracter?sticas imunofenot?picas relacionadas ? ativa??o, Treg e mem?ria de linf?citos, por citometria de fluxo, assim como a produ??o de citocinas ex vivo ou em cultura de sangue total. Para os volunt?rios com LV, foi realizado um estudo longitudinal com reavalia??o imunol?gicas aos 4 e 14 meses ap?s a cura cl?nica. O grupo controle incluiu pessoas provenientes de regi?o end?mica, sendo dividido em 2 grupos: Controle Positivo, formado por pessoas que apresentaram sorologia e?ou PCR anti-Leishmania positivos e Controle Negativo formado por pessoas com sorologia e PCR anti-Leishmania negativos. Durante a LV os linf?citos CD4 apresentam um maior perfil de ativa??o e mem?ria, al?m de serem maiores produtores de citocinas em cultura, quando comparado aos linf?citos CD8, contudo essa ativa??o n?o ? Leishmania espec?fica, visto que ocorreu tanto em aus?ncia (CD4+CD25+:10,60%, CD8+CD25+:5,36%; p<0,0001) quanto em presen?a de ant?genos sol?veis de Leishmania (SLA), (CD4+CD25+: 10,20%, CD8+CD25+:3,28%; p=0,0003). H? ativa??o de linf?citos durante a LV (CD4+CD69+: 4,9%), quando comparado aos grupos Controle Positivo (CD4+CD69+: 1,96% p=0,0045) e Negativo (CD4+CD69+: 1,35% p=0,0062), mas esta ativa??o tamb?m n?o ? Leishmania espec?fica. O perfil de ativa??o linfocit?ria permanece elevado mesmo 14 meses ap?s o fim do tratamento, por?m ap?s a cura a ativa??o ? Leishmania espec?fica (CD4+CD25+ em aus?ncia de SLA: 8,44%, presen?a de SLA: 10,70% p=0,0279). Linf?citos CD8+CD25+ foram capazes de produzir IFN-? em presen?a de ant?geno tanto em Controles Positivos (aus?ncia de SLA: 5,17%, presen?a de SLA: 9,52% p=0,0391) como em LV curados (Curado 4 meses: aus?ncia de SLA: 3,90%, presen?a SLA: 10,70% p=0,0098). C?lulas presentes no sangue total de pessoas com LV ativa s?o capazes de produzir IFN-? em resposta ao SLA (IFN-? em aus?ncia de SLA: 3,61 pg?mL e em presen?a de SLA: 44,26 pg?mL; p=0,0020), assim como LV recuperado (IFN-? em aus?ncia de SLA: 2,29 pg?mL e presen?a de SLA: 139,80 pg?mL; p=0,0005). Contudo o elevado n?vel de IL-10 parece estar inibindo a atividade pro-inflamat?ria de IFN-? e TNF-? em pacientes na fase sintom?tica. Contrariamente as demais citocinas pro-inflamat?rias, a cultura de sangue total do grupo LV ativa n?o apresentou produ??o de IL-2 Leishmania espec?fica (em aus?ncia de SLA: 2,42 pg?mL e em presen?a de SLA: 2,56 pg?mL). Com base nesses dados n?s conclu?mos que a restaura??o da ativa??o de linf?citos e a diminui??o da produ??o de IL-10, Leishmania espec?fica, est?o relacionados ? um perfil imunol?gico protetor. / Visceral Leishmaniasis (VL) is endemic in Brazil and the northeast region had the highest incidence of the disease , despite, in the last 30 years, it has spread to all geographic regions of the country. Leishmania infantum is the m ain etiological agent of VL in Latin America, Europe and North Africa. However, not all infected individuals develop the disease; in fact, the majority present spontaneous re solution of infection without symptoms. The evaluation of the immunological profil e has been mostly conducted stimulating, with Leishmania spp. antigen, peripheral blood mononuclear cells isolated from subjects with VL. These studies showed that VL patients had an inhibition of both, lymphocyte proliferation and proinflammatory response to Leishmania spp. antigen. Our study aimed to evaluate the immune response in active LV, cured post treatment and asymptomatic infection. To reach this aim, we analyzed immunophenotypic features related to activation, Treg and memory lymphocytes, by flow cytometry, as well as, evaluation of cytokine production, in ex vivo or in whole blood culture. In active VL volunteers, a longitu dinal study was conducted with reassessment at 4 and 14 months after clinical cure. The control group included individuals th at live d in endemic region and were either Positive Control, consisting of individuals with positive anti - L eishmania spp. serology and/or positive PCR for Leishmania ? spp. and Negative Control composed by individuals with negative anti - Leishmania antibodie s serology and negative PCR for Leishmania . During VL, CD4 lymphocytes showed greater activation and memory profile s and were the major source of cytokines in culture when compared to CD8 lymphocytes , and these were not Leishmania specific. There were act ivated lymphocytes during VL (CD4 + CD69 + :4.9%) when compared to control groups, Positive (CD4 + CD69 + :1.96%, p=0.0045) and Negative (CD4 + CD69 + :1.35%, p=0.006), on the other hand, this was non - specific activation. The lymphocyte activation profile remain ed el evated even 14 months post treatmen t. A fter clinical cure , the activation was Leishmania specific (CD4 + CD25 + absence of SLA: 8.4%, and presence of SLA: 10.7% p=0.0279). CD8 + CD25 + lymphocytes were able to produce Leishmania specific IFN - ? in both, Positive Controls (absence of SLA 5.2% and presence of SLA: 9.5%, p=0.0391) and Cured 4 month (absence of SLA: 3.9%; presence of SLA: 10.7% p=0.0098). Whole blood culture cells, of VL patients, were able to produce IFN - ?, by SLA stimulation (absence of SLA: 28.0 pg ?mL, and presence: 44.3 pg?mL p=0.0020) as well as recovered groups (absence of SLA 2.3 pg?mL and presence of SLA 139.8 pg?mL, p=0.0005). However, the high level of IL - 10 seem ed to inhibit pro - inflammatory activity of IFN - ? and TNF - ? during symptomatic dis ease . Unlike other pro - inflammatory cytokines, active VL group d id not produce Leishmania specific IL - 2 (absence of SLA 2.4 pg?mL and presence of SLA: 2.6 pg?mL). Based on these data we conclude that the restoration of lymphocyte activation and decreased i n IL - 10 Leishmania specific production were related to a protective immune profile.
103

Processo de cuidar de crian?as hospitalizadas com c?ncer

Lima, K?lya Yasmine Nunes de 08 December 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-14T19:50:39Z No. of bitstreams: 1 KalyaYasmineNunesDeLima_DISSERT.pdf: 2130555 bytes, checksum: 124af20de7eb7222c89f93757dc5ac4f (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-18T18:51:08Z (GMT) No. of bitstreams: 1 KalyaYasmineNunesDeLima_DISSERT.pdf: 2130555 bytes, checksum: 124af20de7eb7222c89f93757dc5ac4f (MD5) / Made available in DSpace on 2016-01-18T18:51:08Z (GMT). No. of bitstreams: 1 KalyaYasmineNunesDeLima_DISSERT.pdf: 2130555 bytes, checksum: 124af20de7eb7222c89f93757dc5ac4f (MD5) Previous issue date: 2014-12-08 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Objetivou-se compreender o processo de cuidar na percep??o da crian?a hospitalizada com c?ncer. Trata-se de um estudo descritivo, de abordagem qualitativa. Os dados foram coletados entre os meses de outubro de 2013 e janeiro de 2014, por meio de registros fotogr?ficos e entrevista semiestruturada, constitu?da por quest?es referentes ? identifica??o da idade, sexo, diagn?stico e tempo de interna??o e um roteiro de perguntas relacionado ?s fotografias registradas. Foram inclu?das oito crian?as com idade entre seis e doze anos que estavam internadas em um setor de oncopediatria, localizado no munic?pio de Natal/RN. Os crit?rios utilizados para inclus?o na amostra foram: estar internada para tratamento do c?ncer; e apresentar condi??es f?sicas favor?veis para realiza??o da coleta de dados. Para o tratamento do material coletado, utilizou-se a An?lise de Conte?do, modalidade tem?tica. A pesquisa seguiu os princ?pios ?ticos e legais que regem a pesquisa cient?fica com seres humanos e realizou-se mediante aprova??o do projeto pelo Comit? de ?tica e Pesquisa da Liga Norte Riograndense contra o C?ncer, com parecer registrado sob o n?mero 329.015 e CAAE 16097613.9.0000.5293. Conforme os resultados verificou-se que, para a crian?a, o cuidar acontece atrav?s de atividades t?cnicas, como a realiza??o de procedimentos e o uso de equipamentos de prote??o individual, como tamb?m por meio do relacionamento dial?gico, que favorece o estabelecimento da confian?a no cuidar profissional. O cuidar, tamb?m, significa desenvolver atividades que promovam o bem-estar, a divers?o e o seu desenvolvimento social e cognitivo, destacando-se, assim, o l?dico, durante a hospitaliza??o, como uma ferramenta auxiliar no processo de cuidar. Durante a interna??o, a crian?a identifica dois sujeitos respons?veis por seu cuidado, o familiar acompanhante e o profissional, sendo os profissionais de enfermagem os mais citados nos momentos de cuidado. Destaca-se, ainda, a promo??o do cuidado, na percep??o da crian?a, relacionada ? infraestrutura da institui??o, a limpeza do ambiente, a higiene corporal, a medicaliza??o e a alimenta??o. Conclui-se que o cuidado compreendido pela crian?a, apesar de ainda manter rela??es com o modelo biom?dico, aponta para uma nova perspectiva em que se devem considerar os 7 aspectos biol?gicos, sociais e psicol?gicos do adoecer de c?ncer, sem desvincul?- los das etapas do desenvolvimento infantil. Ademais, percebe-se a crian?a como um ator social ativo desse processo, e, portanto, precisa ser ouvida e atendida em suas necessidades / The objective was to understand the process of care in the perception of hospitalized children with cancer. This is a descriptive study of qualitative approach. Data were collected between the months of October 2013 and January 2014, through photographic records and semi-structured interview consisting of questions relating to the identification of age, sex, diagnosis and length of stay and a script of questions related to the recorded pictures. Eight children were included aged between six and twelve who were admitted to a pediatric oncology sector, located in the city of Natal / RN. The criteria used in the sample were: being hospitalized for cancer treatment; and present favorable physical conditions for carrying out the data collection. For the treatment of collected material was used content analysis, thematic modality. The study followed the ethical and legal principles governing scientific research with human beings and took place with the approval of the project by the Ethics and Research Committee of the Northern League Riograndense against Cancer, with opinion registered under number 329 015 and CAAE 16097613.9.0000.5293. According to the results it was found that, for the child, the care happens through technical activities, such as making procedures and the use of personal protective equipment, as well as through the dialogic relationship, which favors the establishment of confidence in care professional. Caring also means developing activities that promote well-being, the fun and the social and cognitive development, highlighting thus the playful, during hospitalization, as an auxiliary tool in the care process. During hospitalization, the child identifies two individuals responsible for their care, accompanying family and professional, and nursing professionals the most cited in moments of care. , Also of note, the promotion of care, in the perception of the child related to the infrastructure of the institution, environmental cleaning, personal hygiene, the medicalization and the food. It is concluded that care understood by the child, whilst still maintaining relations with the biomedical model, points to a new perspective that should consider the biological, social and psychological of acquiring cancer without unlink them of the development child. 9 Moreover, we see the child as an active social actor in this process, and therefore needs to be heard and answered their needs
104

A releitura de um documento: o processo de tombamento do centro hist?rico de Natal (RN)

Medeiros, Elaine de Albuquerque 27 October 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-15T19:57:49Z No. of bitstreams: 1 ElaineDeAlbuquerqueMedeiros_DISSERT.pdf: 17559103 bytes, checksum: 2e3291a52ad5f36f747583d20afbf3ea (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-19T21:00:28Z (GMT) No. of bitstreams: 1 ElaineDeAlbuquerqueMedeiros_DISSERT.pdf: 17559103 bytes, checksum: 2e3291a52ad5f36f747583d20afbf3ea (MD5) / Made available in DSpace on 2016-04-19T21:00:28Z (GMT). No. of bitstreams: 1 ElaineDeAlbuquerqueMedeiros_DISSERT.pdf: 17559103 bytes, checksum: 2e3291a52ad5f36f747583d20afbf3ea (MD5) Previous issue date: 2014-10-27 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Durante mais de sete d?cadas de institucionaliza??o do instrumento jur?dico do tombamento podemos perceber as diversas formas de aplica??o deste instrumento, de acordo com as abordagens que eram atribu?das aos ?espa?os-patrimonializados? e a din?mica dos pensamentos elaborados dentro desta tem?tica. Para que o instrumento do tombamento possa efetivamente ser aplicado, h? um longo processo que ? levado a cabo. Este processo se inicia com a elabora??o de estudos que tem como objetivo subsidiar e justificar a motiva??o do tombamento, bem como as propostas de delimita??o da poligonal de entorno e de tombamento, sendo o processo finalizado com a nega??o do pedido ou com a publica??o do tombamento definitivo no Di?rio Oficial da Uni?o. ? a partir da rela??o entre a identifica??o dos valores patrimoniais existentes nesses centros hist?ricos e a defini??o de suas poligonais, que a gest?o da ?rea poder? ser realizada, ancorada tamb?m em normas de interven??es de gest?o estabelecidas para o per?metro tombado. A partir desse contexto, esta disserta??o de mestrado tem como objetivo discutir a abordagem utilizada para a identifica??o e sele??o de um centro hist?rico como pass?vel de prote??o nacional e o reflexo dessa identifica??o na poligonal de tombamento que se estabelece, utilizando-se para isso do estudo de caso do processo de tombamento do centro hist?rico de Natal. Partindo-se do pressuposto de que h? incoer?ncias e distor??es em rela??o ao discurso definido no documento escrito e a espacializa??o do mesmo, motivada por uma espacializa??o que privilegia as edifica??es em detrimento do espa?o urbano. A partir da metodologia da hist?ria urbana, ancoramo-nos nos preceitos utilizados por Rossi (2011), Lamas (2010) e Cullen (2009) para a leitura desse espa?o, juntamente com a proposta do que Sant?Anna define como ?cidade-documento?, para realizar uma nova leitura desse ?espa?o-patrimonializado?, verificando se a poligonal proposta reflete o que se define como motiva??o para o tombamento durante o processo de reconhecimento. Conclu?mos portanto, que ? essencial que as poligonais de tombamento e entorno estejam alinhadas com o discurso apresentado nas instru??es de tombamento, para que o processo de gest?o e defini??o de normas e crit?rios de interven??es na ?rea sejam estabelecidos. Destacamos que a gest?o de um s?tio e a prote??o dos valores identificados torna-se muito dif?cil com a inexist?ncia da legisla??o especifica que balize as decis?es a serem tomadas. / During over seven decades of institutionalizing the national heritage protection legal instrument it can be noticed the many ways of the instrument application, according to the approaches that were assigned to the spaces with heritage values and the dynamic of the elaborated thoughts within this theme. For the application of the instrument effectively, there is a long process that is carried out. This process begins with the study elaboration that aims to subsidize and justify the motivation of property protection, as well as the proposal of buffer zones and national protection areas delimitations, completing the process with the denial of the request or with the publication of the definitive national protection area at the Official Gazette. Starting with the relation between the existing heritage values identification into the historical centres and the definition of its protection areas that the area management will be done, based as well into the management intervention norms established for the protection area perimeter. From this context, the present essay has as porpoise to discuss the approach used for the identification and selection of a historical centre liable for national protection and the repercussion of this identification into the national protection area the was established, using a case study of the national protection of the historical centre of the city of Natal. Starting from the assumption that there are inconsistences and distortions about the text speech of the written document and the spatial delimitation of this document, motivated by an area that privileges the edifications rather than the urban space. Beginning with the urban history methodology, we are based on the precepts of Rossi (2011), Lamas (2010) and Cullen (2009) for that space reading, along with what Sant?Anna (2004) defines as ?city-document? to make a new reading of this ?heritage value space? verifying if the proposed protection area reflects what is defined as motivation for the national protection area process during the recognizing process. Therefore, it is concluded that it is essential that the buffer zones and the national protection areas are aligned with the text presented at the national protection area instruction, so the norms and criteria definition management process are established. We highlight that a site management and the identified values protection become very difficult without a specific law that beacon the decisions that should be taken.
105

Uma aplica??o do m?todo fuzzy-electre-topsis para sele??o de servi?os de computa??o em nuvem / An application of fuzzy-electre-topsis method for selection of cloud computing services

Luz, Lucas Martorelli Gondim 15 September 2014 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-04-25T21:18:31Z No. of bitstreams: 1 LucasMartorelliGondimLuz_DISSERT.pdf: 1583842 bytes, checksum: df20ff101760de2e1c9cd23c387cd2ea (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-04-27T19:40:20Z (GMT) No. of bitstreams: 1 LucasMartorelliGondimLuz_DISSERT.pdf: 1583842 bytes, checksum: df20ff101760de2e1c9cd23c387cd2ea (MD5) / Made available in DSpace on 2016-04-27T19:40:20Z (GMT). No. of bitstreams: 1 LucasMartorelliGondimLuz_DISSERT.pdf: 1583842 bytes, checksum: df20ff101760de2e1c9cd23c387cd2ea (MD5) Previous issue date: 2014-09-15 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Este trabalho apresenta uma aplica??o multicrit?rio h?brida Fuzzy-ELECTRETOPSIS para o problema de sele??o de Servi?os de Computa??o em Nuvem. A pesquisa foi de car?ter explorat?rio, utilizando de um Estudo de Caso, baseado nas exig?ncias reais de profissionais da ?rea de Computa??o em Nuvem. A obten??o dos resultados foi feita a partir da condu??o de Experimento alinhado ao Estudo de Caso, utilizando o perfil distinto de tr?s decisores, para tal, utilizou-se o m?todo Fuzzy-TOPSIS e Fuzzy-ELECTRETOPSIS para obten??o destes resultados e compara??o entre eles. A solu??o contempla a Teoria dos conjuntos Fuzzy, para assim poder suportar informa??es de car?ter impreciso ou subjetivo, facilitando assim a interpreta??o do julgamento do decisor no processo de tomada de decis?o. Os resultados obtidos mostram que ambos os m?todos foram capaz de classificar as alternativas existentes no problema da maneira esperada, por?m o m?todo Fuzzy-ELECTRE-TOPSIS foi capaz de atenuar o car?ter compensat?rio existente no m?todo Fuzzy-TOPSIS, resultando na ordena??o diferenciada das alternativas existentes no problema de decis?o. A atenua??o do car?ter compensat?rio destacou-se de maneira positiva dentro do problema abordado, pois valorizou alternativas mais balanceadas que o m?todo Fuzzy-TOPSIS, um fator que foi comprovado como importante na valida??o do estudo, visto que para composi??o de um mix de servi?o as alternativas mais balanceadas constituem um mix mais consistente ao se trabalhar com restri??es. / This work presents an application of a hybrid Fuzzy-ELECTRE-TOPSIS multicriteria approach for a Cloud Computing Service selection problem. The research was exploratory, using a case of study based on the actual requirements of professionals in the field of Cloud Computing. The results were obtained by conducting an experiment aligned with a Case of Study using the distinct profile of three decision makers, for that, we used the Fuzzy-TOPSIS and Fuzzy-ELECTRE-TOPSIS methods to obtain the results and compare them. The solution includes the Fuzzy sets theory, in a way it could support inaccurate or subjective information, thus facilitating the interpretation of the decision maker judgment in the decision-making process. The results show that both methods were able to rank the alternatives from the problem as expected, but the Fuzzy-ELECTRE-TOPSIS method was able to attenuate the compensatory character existing in the Fuzzy-TOPSIS method, resulting in a different alternative ranking. The attenuation of the compensatory character stood out in a positive way at ranking the alternatives, because it prioritized more balanced alternatives than the Fuzzy-TOPSIS method, a factor that has been proven as important at the validation of the Case of Study, since for the composition of a mix of services, balanced alternatives form a more consistent mix when working with restrictions.
106

Educa??o profissional e tecnol?gica de turismo no Brasil: an?lise atrav?s da percep??o de docentes da rede federal de educa??o

Albuquerque, Jaci C?mara de 08 May 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-06T21:04:18Z No. of bitstreams: 1 JaciCamaraDeAlbuquerque_DISSERT.pdf: 5009877 bytes, checksum: 5840a6b82aec8b4fdae4a6608d032f1b (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-08T21:38:55Z (GMT) No. of bitstreams: 1 JaciCamaraDeAlbuquerque_DISSERT.pdf: 5009877 bytes, checksum: 5840a6b82aec8b4fdae4a6608d032f1b (MD5) / Made available in DSpace on 2016-06-08T21:38:55Z (GMT). No. of bitstreams: 1 JaciCamaraDeAlbuquerque_DISSERT.pdf: 5009877 bytes, checksum: 5840a6b82aec8b4fdae4a6608d032f1b (MD5) Previous issue date: 2015-05-08 / A crescente evolu??o das tecnologias e das inova??es no mercado de trabalho s?o marcos importantes que contribuem para acelerar a melhoria da educa??o profissional e tecnol?gica. A necessidade de se analisar os processos educativos est? correlacionada com essa din?mica, visando dar respostas aos processos pedag?gicos e as necessidades inerentes ao mercado de trabalho em evid?ncia. Nessa pesquisa a tem?tica est? centrada no processo de educa??o voltada para atividade tur?stica que tem como premissa a melhoria na qualidade dos servi?os, tomando como par?metro de an?lise o ensino superior tecnol?gico da rede federal de educa??o (IF), abordando a concep??o, a similaridade e as diverg?ncias nos cursos ofertados, do eixo Turismo, Hospitalidade e Lazer institu?do pelo Cat?logo Nacional dos Cursos Superiores e Tecnol?gicos da Secretaria Nacional de Ci?ncias e Tecnologia no Brasil. A pesquisa, tamb?m visa investigar a concep??o e forma??o destes cursos superiores e busca evidenciar a import?ncia dessa forma??o para os discentes. A pesquisa ? do tipo qualitativo explorat?rio a partir de levantamentos de dados nos sites do Minist?rio da Educa??o, adotou-se como procedimento de pesquisa o question?rio, enviadas aos coordenadores dos cursos via email institucional, para a coleta de dados, visando obter resultados acerca da Educa??o Tecnol?gica na Rede Federal de Educa??o. Os resultados da pesquisa evidenciam que a maioria dos cursos oferecidos pelo ensino superior tecnol?gico da rede federal de educa??o (IF) ? o de Gest?o de Turismo, evidenciamos que essa op??o ? resultado da facilidade em se montar a estrutura dos cursos em rela??o aos demais; os professores v?m nessa modalidade de ensino uma op??o mais pr?tica para o discente chegando a considerar que os cursos passam por um processo de fragilidade, afirmando que a forma??o reside apenas no interesse do discente na obten??o do diploma do curso superior sem a preocupa??o com a qualidade dessa forma??o acad?mica, a demanda pelos cursos ocorre por ser de gradua??o r?pida. Ainda como resultado sobre a concep??o e elabora??o dos Projetos Pol?ticos Pedag?gicos verificou-se que os mesmos s?o constru?dos na maioria pelo colegiado muitos deles sem a participa??o de um pedagogo; sobre a perman?ncia do aluno identificou-se uma alta taxa de evas?o, ocorrendo em alguns campi ? migra??o para a Educa??o Superior tradicional, o bacharelado em turismo. Deste modo, com este trabalho buscou-se contextualizar a educa??o superior tecnol?gica em turismo, apresentando a realidade do atual cen?rio, com intuito de discutir o fen?meno a partir da descri??o realizada por todos os sujeitos e objeto da pesquisa, cujo conhecimento ? devido a experi?ncia na rede federal de educa??o que foi capaz de aproximar a ess?ncia da quest?o. / The increasing pace of technological change and innovation in the labor market are important landmarks that contribute to accelerate the improvement of vocational and technological education. The need to analyze the educational processes is correlated with this dynamic in order to respond to the pedagogical processes and inherent to the labor market needs in evidence. This research theme is centered on targeted education process for tourist activity that is premised on improving the quality of services, taking as analysis parameter technological higher education in the federal education network (IF), covering the design, similarity and the differences in the courses offered, the axis of Tourism, Hospitality and Leisure instituted by the National catalog Technological Colleges and the National Science and Technology Department in Brazil. The research also aims to investigate the design and implementation of these upper and search courses emphasize the importance of training for students. The research is exploratory qualitative from survey data on the websites of the Ministry of Education, was adopted as a research procedure the questionnaire sent to coordinators via institutional email courses, to collect data in order to obtain results about Technological Education Federal Education Network. The survey results show that most courses offered by technological higher education in the federal education network (IF) is the Tourism Management, we noted that this option is the result of the ease in assembling the structure of the courses in relation to others; teachers have this type of education a more practical option for students coming to the conclusion that the courses undergo a fragile process, stating that the formation lies only in the student's interest in obtaining the higher diploma course without concern for quality this academic background, demand for courses is by being fast graduation. Even as a result of the design and development of Political and Pedagogical projects it was found that they are built in the most collegial many of them without the participation of a pedagogue; about the permanence of the student identified a high dropout rate, occurring in some campuses to migration to the traditional higher education, a BA in tourism. Thus, this work aimed to contextualize the technological higher education in tourism, presenting the reality of the current situation, aiming to discuss the phenomenon from the description made by all subjects and the research object, knowledge of which is due to experience the federal education network that was able to bring the essence of the matter.
107

Indicadores e fatores preditivos de uso abusivo de ?lcool em adultos jovens

Sousa, Heloisa Karmelina Carvalho de 13 November 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-06-21T19:05:19Z No. of bitstreams: 1 HeloisaKarmelinaCarvalhoDeSousa_TESE.pdf: 1275878 bytes, checksum: 5d06c5c6a217c3abcb6130f0df50202b (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-06-21T20:25:08Z (GMT) No. of bitstreams: 1 HeloisaKarmelinaCarvalhoDeSousa_TESE.pdf: 1275878 bytes, checksum: 5d06c5c6a217c3abcb6130f0df50202b (MD5) / Made available in DSpace on 2016-06-21T20:25:08Z (GMT). No. of bitstreams: 1 HeloisaKarmelinaCarvalhoDeSousa_TESE.pdf: 1275878 bytes, checksum: 5d06c5c6a217c3abcb6130f0df50202b (MD5) Previous issue date: 2015-11-13 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / O uso abusivo de ?lcool est? intimamente relacionado ? depend?ncia e a preju?zos sociais ou do trabalho. Esta tese tem como objetivo geral elaborar um instrumento sobre o abuso do ?lcool, com a finalidade de diferenciar o grau de comprometimento do quadro sintomatol?gico, considerando seus fatores psicossociais de predi??o. Como objetivos espec?ficos: I) caracterizar o estado da arte sobre avalia??o relacionada ao abuso e depend?ncia de ?lcool; II) investigar e sistematizar aspectos referentes aos fatores psicossociais preditivos para a depend?ncia de ?lcool; III) construir um instrumento para avalia??o de abuso de ?lcool e fatores de prote??o e risco para desenvolvimento de depend?ncia alco?lica; e IV) verificar evid?ncias de validade do instrumento constru?do para a popula??o brasileira. No Estudo I, observou-se que a preval?ncia de artigos referentes ao uso de ?lcool de forma problem?tica, sem classifica??o de depend?ncia, ? menor que a de artigos que investigam a doen?a j? manifestada, al?m de escassos estudos sistem?ticos sobre o tema de abuso de ?lcool no meio cient?fico. No Estudo II, foram realizados grupos focais (GFs), as an?lises acerca dos discursos dos GFs foram feitas atrav?s do Software ALCESTE e p?de-se observar um padr?o de respostas existente entre os participantes em diferentes grupos, com a gera??o de cinco classes. No Estudo III, foi desenvolvido um instrumento contemplando aspectos da S?ndrome de Depend?ncia de ?lcool do Millon Clinical Multiaxial Inventory-III, al?m das caracter?sticas definidas no Estudo I e no Estudo II. A vers?o final do instrumento contou com 59 itens avaliados atrav?s de escala likert de cinco pontos. No estudo IV, a administra??o do mesmo foi realizada no formato on line em estudantes universit?rios entre 18 e 24 anos, residentes em cidades metropolitanas brasileiras. Os resultados evidenciaram que a consist?ncia interna do instrumento ? considerada como satisfat?ria e no que se referem as classes, os dados mais significativos foram os com rela??o a Perda Financeira e Crit?rios para diagn?stico de uso abusivo de ?lcool. ? importante considerar o potencial avaliador de fatores protetivos e de risco para o desenvolvimento de depend?ncia de ?lcool do instrumento como um todo. Uma vez que os indicadores de abuso e o perfil dos abusadores tenha sido identificado, o paciente pode a ter seu tratamento/interven??o voltado para o transtorno e/ou s?ndrome espec?fica, tendo assim uma melhora r?pida e aparente. / The abusive use of alcohol is closely related to dependence and to social and work damages. The main focus of this thesis is to create an instrument about alcohol abuse, in order to differentiate the degree of commitment of the symptomatology, considering its psychosocial factors of prediction. As specific goals: I) characterize the state of the art about assessment related to the abuse and dependence to alcohol; II) investigate and systematize aspects related to the predictive psychosocial factors for alcohol dependence; III) build an instrument for the assessment of alcohol abuse and protection and risk factors for the development of an alcohol dependence; and IV) verify validity evidence of the instrument built for the Brazilian population. In Study I, it was possible to observe the prevalence of articles related to the use of alcohol in a problematic way, without a classification dependence, it is lower than the one of articles that investigate the disease when it is already manifested, not to mention a few systematic studies about the theme of alcohol abuse in the scientific environment. In Study II, focus groups (FGs) were conducted, the analysis about the discourses of the focus groups were made through the ALCESTE software and it was possible to observe a response pattern that existed among the participants in different groups, with the generation of five classes. In Study III, we developed an instrument that contemplated aspects of the Alcohol Dependence Syndrome of the Millon Clinical Multiaxial Inventory-III, in addition to the characteristics defined in Study I and in Study II. The final version of the instrument had 59 items assessed through the likert scale of five points. In Study IV, the administration of the instrument was performed in an online format with university students ranging from 18 to 24 years old, residents in Brazilian metropolitan cities. The results evidenced that the internal consistency of the instrument is considered satisfactory (? = 0,882) and in what it refers to classes, the most significant data was the one related to financial loss and criteria for the diagnosis of alcohol abuse. It is important to consider the evaluative potential of risk and protective factors for the development of alcohol dependence of the instrument as a whole. Once the indicators of abuse and the profile of the abusers has been modified, the patient may have his/her treatment/intervention focused on the trouble and/or specific syndrome, thus having a clear and fast improvement.
108

?Oi, meu nome ? Ana? - um estudo fenomenol?gico-existencial da experi?ncia de mulheres com anorexia nervosa

Cunha, ?lida Mayara da N?brega 11 December 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-22T14:12:32Z No. of bitstreams: 1 ElidaMayaraDaNobregaCunha_DISSERT.pdf: 1208619 bytes, checksum: 69b54e7a113d3cf7635b5ecc376302b7 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-07-26T21:06:46Z (GMT) No. of bitstreams: 1 ElidaMayaraDaNobregaCunha_DISSERT.pdf: 1208619 bytes, checksum: 69b54e7a113d3cf7635b5ecc376302b7 (MD5) / Made available in DSpace on 2016-07-26T21:06:46Z (GMT). No. of bitstreams: 1 ElidaMayaraDaNobregaCunha_DISSERT.pdf: 1208619 bytes, checksum: 69b54e7a113d3cf7635b5ecc376302b7 (MD5) Previous issue date: 2015-12-11 / Esta pesquisa aborda a anorexia nervosa (AN) pelo olhar de pessoas que viveram essa experi?ncia. Os Transtornos Alimentares (TAs) t?m se apresentado como psicopatologias cada vez mais recorrentes na contemporaneidade, sendo sua incid?ncia quase duplicada nos ?ltimos 20 anos, atingindo, principalmente, adolescentes e trazendo conseq??ncias e implica??es de diversas naturezas. A literatura aponta para a relev?ncia do atual ideal de beleza, no qual a magreza ? hipervalorizada. Diante deste cen?rio o objetivo do estudo foi compreender, a partir de uma perspectiva fenomenol?gico-existencial, a experi?ncia de anorexia. Nesse sentido, ao se acessar a experi?ncia, busca-se a compreens?o dos poss?veis sentidos que o n?o-comer tem para a pessoa que vivencia tal experi?ncia. A pesquisa, de inspira??o fenomenol?gico-existencial heideggeriana, utilizou entrevistas semi-abertas como meio de acesso ? experi?ncia. Foram entrevistadas duas pessoas do sexo feminino, com a idade de 17 e 30 anos, iniciadas com uma pergunta disparadora (?Como foi, ou como ?, a sua viv?ncia de anorexia??), que permitiu ? entrevistada falar sobre a sua experi?ncia. Para a sele??o das participantes da pesquisa houve divulga??o entre os profissionais da ?rea da sa?de, assim como nas redes sociais e blogs, em que foram explicitados os objetivos da pesquisa e crit?rios de participa??o. O di?rio de campo tamb?m foi utilizado como recurso metodol?gico, buscando uma maior aproxima??o das experi?ncias das entrevistadas e da pesquisadora. As entrevistas foram interpretadas ? luz da hermen?utica heideggeriana Os sentidos desvelados nas narrativas revelaram quest?es para al?m da quest?o f?sica e patol?gica, estando envolvidos fam?lia, desejos, amigos, experi?ncias, projetos de vida. O corporar, tal como pensado por Martin Heidegger, se fez muito presente nas falas das entrevistadas, uma vez que faz parte da exist?ncia. Dentre as ideias heideggerianas, ressalta-se o cuidado, inospitalidade, habitar, t?dio, abertura ?s possibilidades e facticidade, que puderam ser discutidos a partir das falas das entrevistadas, gerando reflex?es acerca dos seus sentidos, em suas exist?ncias. / This research deals with anorexia nervosa through the look of those who lived this experience. Eating Disorders have been presented as psychopathology increasingly recurrent in contemporary, being almost doubled incidence in the last 20 years, reaching mainly teenagers and bringing consequences and implications of various kinds. The literature points to the relevance of the current ideal of beauty, in which thinness is overvalued. In this case, the study?s objective was to understand, from an existential-phenomenological perspective, anorexia experience. Thus, when assessing the experience, seeking to understand the possible directions that the non-eating is for the person who lives such an experience. The study, of Heidegger's existential-phenomenological inspiration, used semi-structured interviews as a means of access to the experience. Female two people were interviewed, at the age of 17 and 30, began with a starter question ("How was, or how is, your anorexia experience?"), which allowed the interviewee to talk about their experience. For the selection of the study participant was publicized among health professionals, as well as in social networks and blogs, in which the research objectives and approaches have been made explicit. The field diary was also used as a methodological resource, seeking a greater approximation of the experiences of the interviewees and the researcher. The interviews were interpreted in the by Heidegger's hermeneutics. The meanings unveiled in the narratives revealed issues beyond the physical and pathological issue, being involved family, wishes, friends, experiences, life projects. The corporal, as thought by Martin Heidegger, became very present in the statements of the interviewees, as it is part of existence. Among the Heidegger?s ideas, emphasizes care, inhospitality, live, boredom, openness to possibilities and factuality, that might be discussed from interviewees' discourse, engendering reflections about their senses, in their lives.
109

Utiliza??o da l?gica difusa no controle inteligente de sistemas eletro-hidr?ulicos

Tanaka, Marcelo Costa 03 August 2011 (has links)
Made available in DSpace on 2014-12-17T14:58:12Z (GMT). No. of bitstreams: 1 MarceloCT_DISSERT.pdf: 4272420 bytes, checksum: 469b4a24c24115a993cb7e2dfb5e568a (MD5) Previous issue date: 2011-08-03 / Electro-hydraulic servo-systems are widely employed in industrial applications such as robotic manipulators, active suspensions, precision machine tools and aerospace systems. They provide many advantages over electric motors, including high force to weight ratio, fast response time and compact size. However, precise control of electro-hydraulic systems, due to their inherent nonlinear characteristics, cannot be easily obtained with conventional linear controllers. Most flow control valves can also exhibit some hard nonlinearities such as deadzone due to valve spool overlap on the passage?s orifice of the fluid. This work describes the development of a nonlinear controller based on the feedback linearization method and including a fuzzy compensation scheme for an electro-hydraulic actuated system with unknown dead-band. Numerical results are presented in order to demonstrate the control system performance / Sistemas eletroidr?ulicos s?o amplamente utilizados em aplica??es industriais, tais como manipuladores rob?ticos, suspens?es ativas, m?quinas ferramentas de precis?o e sistemas aeroespaciais. Eles oferecem muitas vantagens sobre os motores el?tricos, incluindo alta for?a em rela??o ao peso, tempo de resposta r?pido e tamanho compacto. No entanto, o controle preciso de sistemas eletroidr?ulicos, devido ? sua inerente caracter?stica n?o linear, n?o pode ser facilmente obtido com os controladores lineares convencionais. Hoje em dia, gra?as ao desenvolvimento da Teoria da Estabilidade, proposta pelo matem?tico russo Lyapunov, e com os avan?os da tecnologia computacional, as t?cnicas de controle n?o linear v?m sendo cada vez mais utilizadas. A maioria das v?lvulas de controle de fluxo, al?m de possuir as n?o linearidades comuns geradas pela compressibilidade do fluido, tamb?m podem apresentar algumas n?o linearidades, como a zona morta devido ? sobreposi??o do carretel da v?lvula no orif?cio de passagem do fluido, impedindo o escoamento mesmo para um pequeno deslocamento do carretel, degradando a performance do controlador e gerando instabilidade no sistema em malha fechada. Este trabalho descreve o desenvolvimento de um controlador n?o linear, baseado no m?todo de lineariza??o por realimenta??o com a inclus?o de uma estrat?gia de compensa??o difusa implementada matematicamente na din?mica do modelo de um sistema acionado eletroidraulicamente com banda morta desconhecida. Resultados num?ricos s?o apresentados para demonstrar o desempenho do sistema de controle
110

Raz?o: origem, crise e respostas contempor?neas

Vidal, Maria Jos? da Concei??o Souza 31 October 2007 (has links)
Made available in DSpace on 2014-12-17T15:12:07Z (GMT). No. of bitstreams: 1 MariaJoseCSV .pdf: 1869360 bytes, checksum: 04bf85774d6a72cfbffe74b544a35684 (MD5) Previous issue date: 2007-10-31 / The philosophical discussion has been present throughout the whole history of reason, for philosophy and reason have been always closely linked. In the following work, Reason, origin, crises and contemporary answers I go into the history of the rational and demonstrative thought, focusing on how rationality can be thought about in contemporary philosophy. To answer this question I discuss the principle of philosophy, the mythical period and the thoughts of Heraclito , Parmenides , Plato and Aristotle in relation to reason and rationality. Also discussed is the medieval period and the philosophical use of logic and the criticism of Aristotle s thoughts, especially focusing on the criticism of Hegel and Luckasiewicz of the non contradiction principle. Lastly I discuss the development of reason in present day philosophy, mainly how modern logics could be putting at stake Aristotle s model of reason / A discuss?o que permeia a hist?ria da raz?o ? o debate filos?fico por excel?ncia, uma vez que raz?o e filosofia andam juntas. Assim, em Raz?o - origem, crise e respostas contempor?neas, o objetivo desta pesquisa se d? a partir de olhares na hist?ria do desenvolvimento do pensamento racional e demonstrativo. Com esses olhares problematizaremos como se pode pensar na filosofia contempor?nea a racionalidade. Quais os princ?pios de racionalidade norteiam a nossa no??o atual de raz?o? Para buscar respostas retornaremos ao princ?pio da filosofia, passaremos pela fase dos mitos, analisaremos as contribui??es de Her?clito e Parm?nides as primeiras concep??es de raz?o e veremos os desdobramentos destas com Plat?o e Arist?teles. Este ?ltimo sendo o personagem desse desenvolvimento da racionalidade antiga. A partir da? entram em cena os medievais e o uso filos?fico da l?gica, por conseguinte discutiremos as vozes questionadoras ao pensamento aristot?lico, Hegel e sua cr?tica ao princ?pio de n?o-contradi??o, assim como as indaga??es e cr?ticas de Lukasiewicz. Nessa perspectiva veremos o est?gio atual do desenvolvimento da raz?o, com as l?gicas modernas que se contrap?em ao modelo de raz?o pautado por Arist?teles e desse modo consideraremos como pensar a racionalidade nos dias atuais

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