Made available in DSpace on 2014-12-17T13:54:46Z (GMT). No. of bitstreams: 1 RodolfoRS.pdf: 2319068 bytes, checksum: ffff2c56fec236ebbcbd77a1c05815f1 (MD5) Previous issue date: 2009-08-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this work I analyse the Ramkokamekr?-Kanela situation that migrate with the purpose to study out of the village. For this, I use an analysis of their social organization and their historic process. I intend to map out part of the indigenist school education policies, understand like an uniformization official instrument of differences, and the kind of this relationship with the migration village-city. I propose a students migration reading to the urban centers from the social organization of the society in focus, as their narratives and representation. I draft an interpretation of this process like ensued also the indigenist society researched internal dynamic and not only like resulted of external actions. The research focus in experimented cases by the Ramkokamekr?-Kanela that, coming out their village (Escalvado Village), desplace theirselves to study in urban centers, mairly in Barra do Corda MA / Neste trabalho analiso a situa??o dos Ramkokamekr?-Kanela que migram com a finalidade de estudar fora da aldeia. Para tanto, utilizo-me de uma an?lise da sua organiza??o social e de seus processos hist?ricos. Procuro mapear parte das pol?ticas de educa??o escolar indigenista , entendidas como instrumento oficial de uniformiza??o de diferen?as, e o tipo de rela??o destas com a migra??o aldeia-cidade. Proponho uma leitura da migra??o de estudantes ind?genas para centros urbanos a partir da organiza??o social da sociedade em quest?o, assim como de suas narrativas e representa??es. Esbo?o uma interpreta??o desse processo como decorrente tamb?m da din?mica interna da sociedade ind?gena pesquisada e n?o s? como resultado de a??es externas. A pesquisa centra-se em casos experimentados pelos Ramkokamekr?-Kanela que, saindo de sua aldeia (Aldeia Escalvado), deslocam-se para estudar em centros urbanos, principalmente em Barra do Corda MA

Made available in DSpace on 2014-12-17T13:54:48Z (GMT). No. of bitstreams: 1 Pages from CarlosEBP_DISSERT_pag01_ate_pag68.pdf: 3647459 bytes, checksum: de37b6af45e1da045c43f7e795a2f3f0 (MD5) Previous issue date: 2011-03-18 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The present work has as an objective to seize up some particular meanings of the Feast of Sant Ana (The saint which represents the city of Caic?/RN), a central event of the calendar festive-religious of that city, looking for to perceive on how it combines with the symbolic poles sacred: profane through the social bonds that are present there performed and expressed through the social networking and of local belongings. Such bond ties reveal themselves through a very especial manner, through the migration of returning to the feast, when collectively are produced and updated knowledge and codes that reinforce the representation of the local belonging, nominated as being caicoense . We seek on perceiving how the many events of this feast (from a perspective of a religious order as well as laic) acting on a conclusive way to an identity of the re-meaning of that city, especially in its relation with the migrant natives: the sons and daughters that return to the arms of Sant Ana / presente disserta??o tem como objetivo apreender alguns significados particulares da Festa de Sant Ana (a santa padroeira de Caic?/RN), evento central do calend?rio festivoreligioso daquela cidade, buscando perceber como ela concilia os p?los simb?licos sagradoprofano atrav?s dos v?nculos sociais ali atuantes e expressos em redes de sociabilidade e de pertencimento locais. Tais v?nculos se revelam de modo especial atrav?s da migra??o de retorno para a festa, quando coletivamente s?o produzidos e atualizados conhecimentos e c?digos que refor?am a representa??o do pertencimento local, nomeada ser caicoense . Buscamos perceber como os diversos eventos dessa festa (de ordem tanto religiosa quanto laica) atuam de forma decisiva para a re-significa??o identit?ria daquela cidade, especialmente na sua rela??o com os nativos migrantes: os filhos que retornam para os bra?os de Santa Ana

Made available in DSpace on 2014-12-17T14:09:15Z (GMT). No. of bitstreams: 1 GustavoHVPP_TESE.pdf: 1614621 bytes, checksum: 41665985b97dd379d0430f1b97b534b6 (MD5) Previous issue date: 2012-12-17 / Many challenges have been presented in petroleum industry. One of them is the preventing of fluids influx during drilling and cementing. Gas migration can occur as result of pressure imbalance inside the well when well pressure becomes lower than gas zone pressure and in cementing operation this occurs during cement slurry transition period (solid to fluid). In this work it was developed a methodology to evaluate gas migration during drilling and cementing operations. It was considered gel strength concept and through experimental tests determined gas migration initial time. A mechanistic model was developed to obtain equation that evaluates bubble displacement through the fluid while it gels. Being a time-dependant behavior, dynamic rheological measurements were made to evaluate viscosity along the time. For drilling fluids analyzed it was verified that it is desirable fast and non-progressive gelation in order to reduce gas migration without affect operational window (difference between pore and fracture pressure). For cement slurries analyzed, the most appropriate is that remains fluid for more time below critical gel strength, maintaining hydrostatic pressure above gas zone pressure, and after that gels quickly, reducing gas migration. The model developed simulates previously operational conditions and allow changes in operational and fluids design to obtain a safer condition for well construction / Muitos desafios t?m sido apresentados na constru??o de po?os, dentre eles o de evitar o influxo de fluidos durante a perfura??o e cimenta??o. A migra??o de g?s ? resultante do desequil?brio de press?es dentro do po?o, quando a press?o do po?o se torna menor que a da zona contendo o g?s, e na cimenta??o isso ocorre durante o per?odo de transi??o da pasta (de fluido para s?lido). Nesse trabalho foi desenvolvida uma metodologia para avaliar a criticidade da migra??o de g?s durante a perfura??o e opera??es de cimenta??o de po?os. Foi considerado o conceito de for?a gel e atrav?s de ensaios experimentais, determinado o tempo inicial da migra??o de g?s. Foi desenvolvido um modelo mecanicista para obter a equa??o que avalia o deslocamento da bolha atrav?s dos fluidos enquanto eles gelificam. Por ser um comportamento dependente do tempo, foram feitos ensaios reol?gicos din?micos de viscosidade em fun??o do tempo. Para os fluidos de perfura??o analisados verificou-se que ? desej?vel que possuam uma gelifica??o r?pida e n?o progressiva de forma a reduzir a migra??o de g?s sem comprometer a janela operacional (diferen?a entre press?o de poros e fratura). Para as pastas analisadas verificou-se que a mais adequada ? a que se mant?m fluida por mais tempo abaixo do valor do gel cr?tico, mantendo a press?o hidrost?tica acima da press?o da zona de g?s, e ao atingir esse valor, gelifique rapidamente, reduzindo a migra??o de g?s. O modelo permite simular previamente as condi??es operacionais e propor mudan?as no projeto da opera??o e dos fluidos de forma a obter a condi??o mais segura para a constru??o do po?o

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-22T21:52:17Z No. of bitstreams: 1 ItaloAugustoSouzaDeAssis_DISSERT.pdf: 2067503 bytes, checksum: 774040a098f0200527ecd35e1ac92443 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-02-24T00:08:09Z (GMT) No. of bitstreams: 1 ItaloAugustoSouzaDeAssis_DISSERT.pdf: 2067503 bytes, checksum: 774040a098f0200527ecd35e1ac92443 (MD5) / Made available in DSpace on 2016-02-24T00:08:09Z (GMT). No. of bitstreams: 1 ItaloAugustoSouzaDeAssis_DISSERT.pdf: 2067503 bytes, checksum: 774040a098f0200527ecd35e1ac92443 (MD5) Previous issue date: 2015-01-30 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / O algoritmo de migra??o reversa no tempo (RTM) tem sido amplamente utilizado na ind?stria s?smica para gerar imagens do subsolo e, assim, reduzir os riscos de explora??o de petr?leo e g?s. Seu uso em larga escala ? devido a sua alta qualidade no imageamento do subsolo. O RTM ? tamb?m conhecido pelo seu alto custo computacional. Por essa raz?o, t?cnicas de computa??o paralela t?m sido utilizadas em suas implementa??es. Em geral, as abordagens paralelas para o RTM utilizam uma granularidade grossa, dividindo o processamento de um subconjunto de tiros s?smicos entre n?s de sistemas distribu?- dos. A abordagem paralela com granularidade grossa para o RTM tem se mostrado bastante eficiente uma vez que o processamento de cada tiro s?smico pode ser realizado de forma independente. Todavia, os n?s dos sistemas distribu?dos atuais s?o, em geral, equipamentos com diversos elementos de processamento sob uma arquitetura com mem?ria compartilhada. Assim, o desempenho do algoritmo de RTM pode ser consideravelmente melhorado com a utiliza??o de uma abordagem paralela com granularidade fina para o processamento designado a cada n?. Por essa raz?o, este trabalho apresenta um algoritmo paralelo eficiente de migra??o reversa no tempo em 3D com granularidade fina utilizando o padr?o OpenMP como modelo de programa??o. O algoritmo de propaga??o da onda ac?stica 3D comp?e grande parte do RTM. Foram analisados diferentes balanceamentos de carga a fim de minimizar poss?veis perdas de desempenho paralelo nesta fase. Os resultados encontrados serviram como base para a implementa??o das outras fases do RTM: a retropropaga??o e a condi??o de imagem. O algoritmo proposto foi testado com dados sint?ticos representando algumas das poss?veis estruturas do subsolo. M?tricas como speedup e efici?ncia foram utilizadas para analisar seu desempenho paralelo. As se??es migradas mostram que o algoritmo obteve um desempenho satisfat?rio na identifica??o das estruturas da subsuperf?cie. J? as an?lises de desempenho paralelo explicitam a escalabilidade dos algoritmos alcan?ando um speedup de 22,46 para a propaga??o da onda e 16,95 para o RTM, ambos com 24 threads. / The reverse time migration algorithm (RTM) has been widely used in the seismic industry to generate images of the underground and thus reduce the risk of oil and gas exploration. Its widespread use is due to its high quality in underground imaging. The RTM is also known for its high computational cost. Therefore, parallel computing techniques have been used in their implementations. In general, parallel approaches for RTM use a coarse granularity by distributing the processing of a subset of seismic shots among nodes of distributed systems. Parallel approaches with coarse granularity for RTM have been shown to be very efficient since the processing of each seismic shot can be performed independently. For this reason, RTM algorithm performance can be considerably improved by using a parallel approach with finer granularity for the processing assigned to each node. This work presents an efficient parallel algorithm for 3D reverse time migration with fine granularity using OpenMP. The propagation algorithm of 3D acoustic wave makes up much of the RTM. Different load balancing were analyzed in order to minimize possible losses parallel performance at this stage. The results served as a basis for the implementation of other phases RTM: backpropagation and imaging condition. The proposed algorithm was tested with synthetic data representing some of the possible underground structures. Metrics such as speedup and efficiency were used to analyze its parallel performance. The migrated sections show that the algorithm obtained satisfactory performance in identifying subsurface structures. As for the parallel performance, the analysis clearly demonstrate the scalability of the algorithm achieving a speedup of 22.46 for the propagation of the wave and 16.95 for the RTM, both with 24 threads.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-10-05T19:11:50Z No. of bitstreams: 1 CamilaCristinaGuimaraesNobre_DISSERT.pdf: 3735111 bytes, checksum: 1da00d1e44ef4ca4da5192f63cc4d5e6 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-10-17T21:08:41Z (GMT) No. of bitstreams: 1 CamilaCristinaGuimaraesNobre_DISSERT.pdf: 3735111 bytes, checksum: 1da00d1e44ef4ca4da5192f63cc4d5e6 (MD5) / Made available in DSpace on 2017-10-17T21:08:41Z (GMT). No. of bitstreams: 1 CamilaCristinaGuimaraesNobre_DISSERT.pdf: 3735111 bytes, checksum: 1da00d1e44ef4ca4da5192f63cc4d5e6 (MD5) Previous issue date: 2017-05-31 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O c?ncer do colo do ?tero ? o terceiro tipo de c?ncer mais frequente em mulheres no Brasil, sendo a sua frequ?ncia menor apenas do que aquelas observadas para o c?ncer de pele n?o-melanoma e c?ncer de mama. O fator inibit?rio da migra??o de macr?fagos (MIF) ? produzido por diferentes tipos de c?lulas e participa de uma cadeia complexa de eventos que favorece o processo de carcinog?nese, sendo poss?vel observar um alto n?vel de express?o em quase todos os tipos de c?ncer humano, entre eles o c?ncer do colo do ?tero. O MIF tamb?m induz um aumento dose dependente na excre??o do fator de crescimento de endot?lio vascular (VEGF), que promove a angiog?nese, o crescimento tumoral e a migra??o dessas c?lulas no c?ncer do colo do ?tero. O objetivo deste estudo foi investigar a express?o de MIF e VEGF em pacientes que apresentam ou n?o les?es do colo do ?tero, no intuito de identificar a exist?ncia de uma rela??o direta entre a presen?a dos marcadores MIF e VEGF com o grau da les?o da paciente, bem como, com a presen?a do papilomav?rus humano (HPV). Foram inclu?das no estudo 45 mulheres que haviam sido encaminhadas para a Maternidade Escola Janu?rio Cicco com suspeita de les?es na c?rvice uterina. As pacientes que aceitaram participar do estudo responderam a um question?rio, para obten??o de dados s?cio-demograficos, seguido de exame cl?nico. Das mulheres que se submeteram a colposcopia, foram coletados dois fragmentos de tecido do colo do ?tero, um para an?lise histopatol?gica e outro para detec??o do HPV por PCR convencional. A express?o dos biomarcadores, MIF e VEGF, foi detectada pela t?cnica de imuno-histoqu?mica. A ?rea positiva de cada biomarcador foi lida e quantificada utilizando o programa ImageJ?, e o resultado foi analisado atrav?s dos programas de estat?stica SPSS? Statistics e GraphPad Prism. Das 45 pacientes inclu?das no estudo, 20% apresentaram resultado do exame dentro dos padr?es da normalidade, enquanto que 80% apresentaram algum tipo de altera??o no exame; sendo 35,55% les?es intraepiteliais de baixo grau (LIEBG) e 44,44% les?es intraepiteliais de alto grau (LIEAG). A taxa de preval?ncia global de infec??o genital pelo HPV foi de 80%, sendo 86,1% em pacientes com les?o. A express?o m?dia do VEGF e do MIF tiveram um aumento gradativo quando comparado entre as pacientes normais, LIEBG e LIEAG, correspondendo respectivamente aos seguintes valores, 19,62, 41,59 e 55,42 para o VEGF e 4,36, 9,44 e 22,86 para MIF. Foi poss?vel verificar uma correla??o positiva entre a express?o de MIF e VEGF (r = 0,523, p = <0,001). Por meio deste trabalho p?de-se concluir que o VEGF e o MIF est?o correlacionados e envolvidos no processo de displasia cervical, aumentando a sua express?o conforme ocorre a progress?o da les?o. No entanto, n?o foi poss?vel encontrar associa??o entre a presen?a do HPV e os n?veis de MIF e VEGF. / The cervical cancer is the third most frequent type of cancer in women in Brazil, and its frequency is only lower than those observed for non-melanoma skin cancer and breast cancer. Macrophage migration inhibitory factor (MIF) is produced by different cell types and participates in a complex chain of events that favors the process of carcinogenesis, being possible to observe a high expression level in almost all types of human cancer, such as in cervical cancer. MIF also induces a dose-dependent increase in the excretion of vascular endothelial growth factor (VEGF), which promotes angiogenesis, tumor growth and migration of these cells in cervical cancer. The objective of this study was to investigate the expression of MIF and VEGF in patients with or without cervical lesions, in order to identify the existence of a direct relationship between the presence of those markers with the degree of the lesion of the patient, as well, as with the presence of human papillomavirus (HPV). The study included 45 women who had been referred to the Maternity School Janu?rio Cicco with suspected lesions of the uterine cervix. Patients who accepted to participate in the study answered a questionnaire to obtain socio-demographic data, followed by clinical examination. Patients who agreed to participate in the study answered a questionnaire to obtain socio-demographic data, followed by clinical examination. Two cervix tissue fragments were collected from the women who underwent colposcopy, one for histopathological analysis and the other for HPV detection by conventional PCR. The expression of the biomarkers, MIF and VEGF, was detected by the immunohistochemical technique. The positive area of each biomarker was read and quantified using the ImageJ? program and the result was analyzed using the statistical program SPSS? Statistics and GraphPad Prism. Of the 45 patients included in the study, 20% showed no lesions, while 80% had some type of alteration in the exam; being 35.55% low-grade squamous intraepithelial lesion (LSIL) type and 44.44% highgrade squamous intraepithelial lesion (HSIL) type. The overall prevalence rate of genital HPV infection was 80%, with 86.1% in patients with lesions. Mean VEGF and MIF expression increased gradually when compared to normal patients, LSIL and HSIL, respectively, corresponding to the following values: 19.62, 41.59 and 55.42 for VEGF and 4.36, 9, 44 and 22.86 for MIF. A positive correlation between MIF and VEGF expression was found (r = 0.523, p = <0.001). Through this work it was concluded that VEGF and MIF are correlated and involved in the cervical dysplasia process, increasing its expression as the lesion progresses. However, it was not possible to find an association between the presence of HPV and the levels of MIF and VEGF.

Submitted by PPG Economia do desenvolvimento (economia-pg@pucrs.br) on 2018-01-19T12:58:13Z No. of bitstreams: 1 LUIZ_FELIPE_CAMPOS_FONTES_DIS.pdf: 1157438 bytes, checksum: 5c0dc0f464a309e26c0d2b33d1a2d147 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-01-29T12:05:27Z (GMT) No. of bitstreams: 1 LUIZ_FELIPE_CAMPOS_FONTES_DIS.pdf: 1157438 bytes, checksum: 5c0dc0f464a309e26c0d2b33d1a2d147 (MD5) / Made available in DSpace on 2018-01-29T12:10:30Z (GMT). No. of bitstreams: 1 LUIZ_FELIPE_CAMPOS_FONTES_DIS.pdf: 1157438 bytes, checksum: 5c0dc0f464a309e26c0d2b33d1a2d147 (MD5) Previous issue date: 2017-12-20 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The present dissertation consists of two independent essays in public policy evaluation, which estimates the causal effects of two major Brazilian policies, the Mais M?dicos Program (PMM) and the Bolsa Fam?lia Program (PBF). The first essay aims to evaluate the PMM in terms of the provision of physicians, presenting estimates of its impact on hospitalization for ambulatory care sensitive conditions (ACSH). The differences-in-differences method was used with propensity score matching (double difference matching), using three specifications, a falsification test and also a dynamic endogeneity test to confirm the robustness of the results. For the application of this methodology, a panel of municipal data was constructed covering several variables related to socioeconomic, demographic and public health infrastructure characteristics in the cities for the period from 2010 to 2016. First, it is shown that the program had an effect on increasing the density of physicians. Then, the main results show a significant reduction in hospital admissions in treated municipalities with an increasing and perceptible effect in the second year of the program. The second essay aims to analyze the impact of PBF in Brazilian intern migration. The Average Treatment Effect on Treated (ATT) was estimated through Propensity Score Matching (PSM) using microdata from Brazilian Census 2010. The results show that the program stimulates recipients? remigration to their home states and retain those already established in a locality. The estimates are robust in the possible presence of omitted variables and in different matching specifications. By exploring regional heterogeneity, we have shown that the impacts on return and retention are greater for the Northeast, the concentrating region of return migrations and Program beneficiaries. Through Dose Response Function it is also shown that the results are positively correlated with the monetary values transfer by the Bolsa Fam?lia, which may indicate a channel for the empirical results. / A presente disserta??o consiste em dois ensaios independentes em avalia??o de pol?ticas p?blicas, os quais estimam efeitos causais de duas pol?ticas brasileiras de grande apelo, o Programa Mais M?dicos (PMM) e o Programa Bolsa Fam?lia (PBF). O primeiro ensaio objetiva avaliar o PMM no que se refere ao provimento de m?dicos, apresentando estimativas de seu impacto nas interna??es por condi??es sens?veis ? aten??o prim?ria (ICSAP). Foi empregado o m?todo de diferen?as-em-diferen?as com pareamento por escore de propens?o (double difference matching). Para a aplica??o desta metodologia, foi constru?do um painel de dados municipais abrangendo diversas vari?veis relativas ?s caracter?sticas socioecon?micas, demogr?ficas e de infraestrutura p?blica de sa?de nas cidades para o per?odo de 2010 a 2016. Como um primeiro est?gio da an?lise, apresenta-se o impacto do programa sobre o n?mero de m?dicos nos munic?pios benefici?rios. As estimativas sugerem que houve aumento significativo na oferta de m?dicos por conta do PMM. Em um segundo est?gio mostra-se que o programa teve impacto na redu??o de interna??es hospitalares evit?veis nos munic?pios mais carentes em termos de oferta de sa?de, com um efeito crescente e percept?vel a partir do segundo ano da pol?tica. Al?m disso, algumas estrat?gias adotadas garantiram a robustez dos resultados como um teste de endogeneidade din?mica, estima??es para anos anteriores ao programa, e regress?es a partir de diferentes especifica??es. O segundo ensaio estima o impacto do PBF sobre a migra??o inter-estadual brasileira. A estima??o do efeito do tratamento m?dio sobre os tratados (Average Treatment Effect on Treated ? ATT) foi feita por meio do Propensity Score Matching (PSM) a partir dos microdados do Censo Demogr?fico de 2010, em que foi poss?vel analisar indiv?duos migrantes, migrantes retornados e n?o retornados. As estima??es apontam que o PBF estimula a remigra??o dos benefici?rios aos seus estados de origem, al?m de manter aqueles que j? est?o fixos em uma localidade, mesmo que essa n?o seja a sua de nascimento. Os resultados n?o se mostraram sens?veis ? poss?vel presen?a de vari?veis omitidas e as demais especifica??es utilizadas nas estima??es. Ao explorar a heterogeneidade regional, mostramos que os impactos sobre remigra??o e reten??o s?o maiores para regi?o Nordeste, a qual concentra grande parte dos remigrados e benefici?rios do PBF. Ainda, por meio da Fun??o Dose Resposta (FDR), mostra-se que os resultados s?o positivamente correlacionados com os valores monet?rios pagos pelo programa, o que pode indicar um mecanismo para os resultados.

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2017-04-05T14:43:15Z No. of bitstreams: 1 ADELITA ARAUJO DE SOUZA.pdf: 236523345 bytes, checksum: 4a78b69647ebd3005329b8ddebf8f3d6 (MD5) / Made available in DSpace on 2017-04-05T14:43:15Z (GMT). No. of bitstreams: 1 ADELITA ARAUJO DE SOUZA.pdf: 236523345 bytes, checksum: 4a78b69647ebd3005329b8ddebf8f3d6 (MD5) Previous issue date: 2017-02-13 / This study aims at demonstrating that the Guaranian culture has its own logic of territorial organization on a local, regional and macro regional scale. In order to do so, this research is grounded in the concept of Cultural Landscape which imposes the potential to provide men with the resources that uphold a given culture to territory. With a view to integrating new ideas and realities, this dissertation traces history back and finds out that even before the European?s arrival, Guarani tribes had already settled down in an organized manner, with a number of territorial bases which remain up to present days. Historical and cartographical analyses reveal that Guarani tribes were successively subject to the superimposition of different means of territorial organization, whether Spanish, Jesuitical, Marquess of Pombal?s, imperial or republican, throughout history; thus hindering and subjecting their own organization to change, while imposing new ways of life which were always incompatible and intolerant to their culture. By identifying such superimpositions, we are able to advocate that the Guarani are neither culturally nomad nor migrating tribes, but have been historically forced to find new wide territories of appropriate environmental complexity where they could restore their own organization and, as a result, their own culture. At present, policies on settlement, integration and social welfare towards the Guarani go on promoting the same binomial superimposition-migration, as they are based on the same principles of replacing values, meanings and ways of life. / Esta pesquisa busca demonstrar que a cultura Guarani possui uma l?gica de organiza??o territorial que alcan?a as escalas locais, regionais e macrorregionais. Para isso utiliza o arcabou?o te?rico do conceito de Paisagem Cultural, que imp?em ao territ?rio a capacidade de oferecer ao homem os recursos que sustentam uma cultura. Com o objetivo de incorporar novas ideias e realidades, a tese recomp?e a hist?ria, observando que mesmo antes da chegada do homem europeu os Guaranis j? se estabeleciam de forma ordenada, com diversos fundamentos territoriais que permanecem at? os dias de hoje. Na an?lise hist?rica e cartogr?fica, ? poss?vel constatar que os Guaranis foram historicamente submetidos a sucessivas sobreposi??es de l?gicas territoriais, seja espanhola, jesu?ta, pombalina, imperial ou republicana, alterando e impedindo sua organiza??o, impondo novas formas de vida, sempre incompat?veis e intolerantes ? sua cultura. Frente a ideias amplamente admitidas, esta pesquisa confirma que os Guaranis tem amplo conhecimento da l?gica territorial, da agricultura e n?o s?o povos n?mades ou migrantes, mas foram historicamente pressionados a encontrar novos territ?rios, com amplitude e complexidade ambiental apropriada, onde pudessem restabelecer sua organiza??o a fim de recompor a sua cultura. Mesmo na atualidade, as a??es de assentamento, integra??o e assist?ncia social aos Guaranis, continuam a promover o mesmo bin?mio de sobreposi??o e migra??o, pois est?o baseados na mesma pol?tica de substitui??o de valores, significados e modos de vida.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-08-24T16:38:26Z No. of bitstreams: 1 2010 - Betty Nogueira Rocha.pdf: 5999791 bytes, checksum: 79ed446afee6be0f885174859be8ae99 (MD5) / Made available in DSpace on 2016-08-24T16:38:26Z (GMT). No. of bitstreams: 1 2010 - Betty Nogueira Rocha.pdf: 5999791 bytes, checksum: 79ed446afee6be0f885174859be8ae99 (MD5) Previous issue date: 2010-12-07 / Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do RJ- - FAPERJ / The guiding thread of this analysis is the political of development outlined by the military government under the three editions of the National Development Plan (PND). One of the goals in context of these plans was to enable the colonization spaces demographically "empty" the country through the implementation of projects of colonization in the area that comprises the Legal Amazon acting as a stimulus to spontaneous migration and directing the flow of migration to the region. The goal of this study is to investigate and analyze the causal link between migration and development from a multidisciplinary view of the plots that tell the tragedies of migrants who settled in the border region. The case study was conducted in Lucas do Rio Verde, located in north of Mato Grosso, originating from a colonization project of the 1980s designed to resolve social tensions on the land that began to take a breath in Rio Grande do Sul. When provide voice to figures that fixed in that border is intended to analyze the dramas experienced and shared, and exposing the plots resulting from that process migration. The effort undertaken in this study was to investigate how to construct the representations of development in a frontier area. / O fio condutor desta an?lise ? a pol?tica de desenvolvimento tra?ada pelo governo militar no ?mbito das tr?s edi??es do Plano Nacional de Desenvolvimento (PND). Um dos objetivos no bojo destes Planos era possibilitar a coloniza??o dos espa?os demograficamente ?vazios? do territ?rio nacional atrav?s da implanta??o de projetos de coloniza??o na ?rea que compreende a Amaz?nia Legal servindo de est?mulo de migra??es espont?neas e direcionando o fluxo migrat?rio para a regi?o. O objetivo deste trabalho ? investigar e analisar o nexo causal entre migra??o e desenvolvimento sob um olhar multidisciplinar das tramas que informam os dramas dos migrantes que se fixaram naquela regi?o fronteiri?a. O estudo de caso foi realizado em Lucas do Rio Verde, cidade localizada no norte matogrossense, origin?ria de um projeto de coloniza??o da d?cada de 1980 elaborado para resolver as tens?es sociais por terra que come?avam a tomar f?lego no Rio Grande do Sul. Ao dar voz aos personagens que se fixaram naquela fronteira pretende-se analisar os dramas vivenciados e compartilhados e expor as tramas resultantes daquele processo migrat?rio. O esfor?o empreendido nesta pesquisa foi o de investigar como se constroem as representa??es de desenvolvimento numa ?rea de fronteira.

Made available in DSpace on 2014-12-17T13:53:34Z (GMT). No. of bitstreams: 1 MariaITM_DISSERT.pdf: 1350553 bytes, checksum: 48697460834d64c94a81cc553077f873 (MD5) Previous issue date: 2012-08-29 / This work aims to analyze risks related to information technology (IT) in procedures related to data migration. This is done considering ALEPH, Integrated Libray System (ILS) that migrated data to the Library Module present in the software called Sistema Integrado de Gest?o de Atividades Acad?micas (SIGAA) at the Zila Mamede Central Library at the Federal University of Rio Grande do Norte (UFRN) in Natal/Brazil. The methodological procedure used was of a qualitative exploratory research with the realization of case study at the referred library in order to better understand this phenomenon. Data collection was able once there was use of a semi-structured interview that was applied with (11) subjects that are employed at the library as well as in the Technology Superintendence at UFRN. In order to examine data Content analysis as well as thematic review process was performed. After data migration the results of the interview were then linked to both analysis units and their system register with category correspondence. The main risks detected were: data destruction; data loss; data bank communication failure; user response delay; data inconsistency and duplicity. These elements point out implication and generate disorders that affect external and internal system users and lead to stress, work duplicity and hassles. Thus, some measures were taken related to risk management such as adequate planning, central management support, and pilot test simulations. For the advantages it has reduced of: risk, occurrence of problems and possible unforeseen costs, and allows achieving organizational objectives, among other. It is inferred therefore that the risks present in data bank conversion in libraries exist and some are predictable, however, it is seen that librarians do not know or ignore and are not very worried in the identification risks in data bank conversion, their acknowledge would minimize or even extinguish them. Another important aspect to consider is the existence of few empirical research that deal specifically with this subject and thus presenting the new of new approaches in order to promote better understanding of the matter in the corporate environment of the information units / Este estudo se prop?e a analisar os riscos de tecnologia da informa??o (TI) decorrentes do processo de migra??o de dados do ALEPH para o m?dulo biblioteca do Sistema Integrado de Gest?o de Atividades Acad?micas (SIGAA) na Biblioteca Central Zila Mamede (BCZM), da Universidade Federal do Rio Grande do Norte (UFRN). Assim, os procedimentos metodol?gicos tra?ados constaram de uma pesquisa explorat?ria e qualitativa, com a realiza??o de um estudo de caso na BCZM para detalhar e compreender o fen?meno. O instrumento de coleta de dados utilizado foi a entrevista semiestruturada, aplicada a (11) onze sujeitos, lotados na Biblioteca e na Superintend?ncia de Inform?tica da UFRN. Para exame dos dados utilizou-se a an?lise de conte?do, mediante a t?cnica de an?lise tem?tica. Ap?s a transcri??o, os relatos foram relacionados ?s unidades de registro e ?s unidades de contexto correspondentes ?s categorias. Os principais riscos que emergiram na transfer?ncia dos sistemas foram: a destrui??o de dados; a perda de dados; a falha de comunica??o com banco de dados da Institui??o; paralisa??o parcial do sistema; a demora no tempo de resposta para o usu?rio; a inconsist?ncia de dados e a duplicidade de dados. Como implica??es constataram-se transtornos que afetam tanto os usu?rios externos quantos os usu?rios internos do sistema, ocasionando estresses, retrabalho e aborrecimentos. As medidas para a gest?o de riscos que surgiram com maior frequ?ncia foram: um bom planejamento, apoio da administra??o central e mais simula??es de testes pilotos. Para as vantagens dessa gest?o, tem-se a diminui??o de: riscos, ocorr?ncia de problemas e custos eventuais n?o previstos, al?m de possibilitar alcan?ar os objetivos organizacionais, entre outras. Infere-se, portanto, que os riscos na convers?o de base de dados em bibliotecas existem e alguns s?o previs?veis; no entanto, verificou-se que os bibliotec?rios desconhecem ou ignoram e n?o se preocupam em identific?-los, em uma convers?o de base de dados visando a minimiz?-los ou san?-los. Outro importante aspecto a considerar ? a exist?ncia de poucas pesquisas emp?ricas, voltadas especificamente para esse tema, havendo a necessidade de novas abordagens para elucid?-lo no ambiente corporativo das unidades de informa??o

Made available in DSpace on 2014-12-17T14:56:09Z (GMT). No. of bitstreams: 1 DesnesANR_DISSERT.pdf: 3501359 bytes, checksum: 5155a508018af1e52dae20205b8f726b (MD5) Previous issue date: 2012-12-21 / The seismic method is of extreme importance in geophysics. Mainly associated with oil exploration, this line of research focuses most of all investment in this area. The acquisition, processing and interpretation of seismic data are the parts that instantiate a seismic study. Seismic processing in particular is focused on the imaging that represents the geological structures in subsurface. Seismic processing has evolved significantly in recent decades due to the demands of the oil industry, and also due to the technological advances of hardware that achieved higher storage and digital information processing capabilities, which enabled the development of more sophisticated processing algorithms such as the ones that use of parallel architectures. One of the most important steps in seismic processing is imaging. Migration of seismic data is one of the techniques used for imaging, with the goal of obtaining a seismic section image that represents the geological structures the most accurately and faithfully as possible. The result of migration is a 2D or 3D image which it is possible to identify faults and salt domes among other structures of interest, such as potential hydrocarbon reservoirs. However, a migration fulfilled with quality and accuracy may be a long time consuming process, due to the mathematical algorithm heuristics and the extensive amount of data inputs and outputs involved in this process, which may take days, weeks and even months of uninterrupted execution on the supercomputers, representing large computational and financial costs, that could derail the implementation of these methods. Aiming at performance improvement, this work conducted the core parallelization of a Reverse Time Migration (RTM) algorithm, using the parallel programming model Open Multi-Processing (OpenMP), due to the large computational effort required by this migration technique. Furthermore, analyzes such as speedup, efficiency were performed, and ultimately, the identification of the algorithmic scalability degree with respect to the technological advancement expected by future processors / A s?smica ? uma ?rea de extrema import?ncia na geof?sica. Associada principalmente ? explora??o de petr?leo, essa linha de pesquisa concentra boa parte de todo o investimento realizado nesta grande ?rea. A aquisi??o, o processamento e a interpreta??o dos dados s?smicos s?o as partes que comp?em um estudo s?smico. O processamento s?smico em especial tem como objetivo ? obten??o de uma imagem que represente as estruturas geol?gicas em subsuperf?cie. O processamento s?smico evoluiu significativamente nas ?ltimas d?cadas devido ?s demandas da ind?stria petrol?fera, e aos avan?os tecnol?gicos de hardware que proporcionaram maiores capacidades de armazenamento e processamento de informa??es digitais, que por sua vez possibilitaram o desenvolvimento de algoritmos de processamento mais sofisticados, tais como os que utilizam arquiteturas paralelas de processamento. Uma das etapas importantes contidas no processamento s?smico ? o imageamento. A migra??o ? uma das t?cnicas usadas para no imageamento com o objetivo de obter uma se??o s?smica que represente de forma mais precisa e fiel as estruturas geol?gicas. O resultado da migra??o ? uma imagem 2D ou 3D na qual ? poss?vel a identifica??o de falhas e domos salinos dentre outras estruturas de interesse, poss?veis reservat?rios de hidrocarbonetos. Entretanto, uma migra??o rica em qualidade e precis?o pode ser um processo demasiadamente longo, devido ?s heur?sticas matem?ticas do algoritmo e ? quantidade extensa de entradas e sa?das de dados envolvida neste processo, podendo levar dias, semanas e at? meses de execu??o ininterrupta em supercomputadores, o que representa grande custo computacional e financeiro, o que pode inviabilizar a aplica??o desses m?todos. Tendo como objetivo a melhoria de desempenho, este trabalho realizou a paraleliza??o do n?cleo de um algoritmo de Migra??o Reversa no Tempo (RTM - do ingl?s: Reverse Time Migration), utilizando o modelo de programa??o paralela OpenMP (do ingl?s: Open Multi-Processing), devido ao alto esfor?o computacional demandado por essa t?cnica de migra??o. Al?m disso, foram realizadas an?lises de desempenho tais como de speedup, efici?ncia, e, por fim, a identifica??o do grau de escalabilidade algor?tmica com rela??o ao avan?o tecnol?gico esperado para futuros processadores