Tesis sobre el tema "RIP-1"
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Barcessat, Ana Rita Pinheiro. "Análise da expressão de marcadores de morte celular em lesões potencialmente malignas orais induzidas com 4-NQO e tratadas com terapia fotodinâmica". Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/23/23141/tde-04092013-164325/.
Texto completoThe potentially malignant oral lesions (PMOL) are processes with great chances for cancer transformation and therefore the close monitoring and removal of lesions in cases of dysplasia are mandatory. Photodynamic therapy (PDT) has been identified as a promising and noninvasive treatment for these injuries. The therapeutic principle of PDT involves the generation of high levels of oxidative stress, by association of a photoactive substance with electromagnetic energy and tissue oxygen. It can kill metabolically changed cells through cascades of death which are still unclear. Most studies indicate the need of several PDT sessions to eradicate PMOL, however the interval between sessions is not consensual. The aim of this study was to establish the anatomical and chronological relationship between cellular death biomarkers (caspase 3, beclin 1 and RIP 1 ) and a DNA repair protein during cell cycle (PCNA) present after PDT, aiming to check the kinetic death/cell proliferation and suggest the time interval between PDT sessions more suitable to repetition of the PDT. For this purpose, PMOLs were induced by 4-nitroquinoline-1-oxide (4-NQO) topical application on the lingual mucosa of rats and further treated with PDT mediated by topical administration of 5-aminolevulinic acid (5-ALA) and a commercial laser (Twin flex-MM Optics São Carlos-Brazil 660nm, 90J.cm-2,1000mW.cm-2).The effect of PDT was analyzed at 6h, 24h, 48h and 72h after the first session, and at 6h and 72h after a second session. In these periods, the tongues have been evaluated clinically and histopathologically regarding the percentage reduction of lesions induced and tissue morphology as well as by immunohistochemical analysis for PCNA, cleaved caspase 3 (present in apoptosis), Beclin 1 (present in autophagy) and RIP (present in necroptosis). The percentage of positive cells for these markers was determined in the epithelium of the tongue mucosa. There was no complete remission of lesions after two PDT sessions, but the second session resulted in a decrease of around 50% in lesion size. The period of 6 hours after PDT was the one in which significant epithelial atrophy was exhibited, as well as the highest percentage of positive cells for all tested markers, including PCNA in both sessions. Caspase 3, beclin 1 and RIP 1 exhibited a significant decrease of the expression at 24 hours. PCNA showed significant increase in the 72-hour period and after 6h and 72h from the second session. As there was no necrosis, the increased expression of RIP 1 has been linked to apoptosis and autophagy. It was concluded that PDT mediated by 5-ALA promoted increased expression of caspase 3, beclin 1 and RIP 1 at the PMOLs in the first 6 hours after therapy. For this PDT model, these proteins appear to interact with mechanisms of death by apoptosis and autophagy, but not necrosis. It is considered the range of 24h as the most suitable for another cycle with these parameters of PDT, which should not be extended beyond 72 hours.
Marlow, Gregory. "Week 13, Video 04: Control Rig 1". Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/digital-animation-videos-oer/85.
Texto completoCamurri, Laura. "The role of mammalian Rig-1 (ROB03) in neural development". Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420980.
Texto completoFernandes, Izabella Barbosa. "Impacto da c?rie dent?ria na qualidade de vida de crian?as de 1 a 3 anos de idade e de suas fam?lias". UFVJM, 2014. http://acervo.ufvjm.edu.br/jspui/handle/1/783.
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A c?rie dent?ria n?o tratada ? a condi??o bucal mais frequentemente associada com um impacto negativo na qualidade de vida de crian?as por estar associada ? dor, desconforto, dificuldades na mastiga??o, problemas de fala, dist?rbios no sono, problemas psicol?gicos, dificuldades na escola e dificuldades na intera??o social da crian?a. Essa associa??o tem sido frequentemente verificada em adultos, adolescentes, crian?as escolares e pr?-escolares. A associa??o de impacto da c?rie dent?ria em beb?s sobre a qualidade de vida ? ainda desconhecida. O objetivo deste estudo foi avaliar o impacto de diferentes est?gios de progress?o da c?rie dent?ria na qualidade de vida de beb?s e de suas fam?lias na cidade de Diamantina, Minas Gerais. Uma amostra de 308 beb?s de 1 a 3 anos de idade foi submetida a um exame cl?nico para avaliar a c?rie dent?ria atrav?s do Sistema Internacional de Avalia??o e Detec??o de C?rie - International Caries Detection and Assessment System (ICDAS). As m?es dos beb?s foram convidadas a responder dois question?rios: um sobre qualidade de vida relacionada ? sa?de bucal (QVRSB) das crian?as e de suas fam?lias, o Brazilian Early Childhood Oral Health Impact Scale (B-ECOHIS) e outro sobre as caracter?sticas e condi??es sociodemogr?ficas dos beb?s e de suas fam?lias. A an?lise estat?stica foi realizada atrav?s do programa SPSS - Statistical Package for Social Sciences (SPSS for Windows, version 20.0, SPSS Inc. Chicago, IL, USA) e envolveu an?lise descritiva, os testes Kappa, Kruskal Wallis, Mann-Whitney e modelos de regress?o de Poisson hierarquicamente ajustados. A preval?ncia de c?rie n?o tratada foi de 64,3%. A maioria dos beb?s com c?rie apresentava c?rie em seu est?gio severo de progress?o (53,5%). Houve uma diferen?a significativa entre o est?gio de progress?o da c?rie e QVRSB no beb? e na fam?lia. O est?gio severo de c?rie dent?ria [RP IC95%= 2.80 (1.90-4.12)] e a menor idade da m?e [RP IC95%= 1.69 (1.27-2.25) foram associados com o maior impacto na qualidade de vida. Concluiu-se que les?es de c?rie em est?gios mais avan?ados de progress?o foram associados a uma pior qualidade de vida em beb?s e em suas fam?lias.
Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014.
ABSTRACT Untreated dental caries is the most often oral condition associated with negative impact on quality of life in children by being associated with pain, discomfort, difficulty in chewing, speech problems, sleep disorders, psychological problems, difficulties in school and social interaction of the child. This association has been frequently seen in adults, adolescents, school children and preschoolers. The impact of dental caries in the quality of life of babies still unknown. The aim of this study was to evaluate the impact of different stages of progression of dental caries in the quality of life of babies and their families in Diamantina, Minas Gerais. A sample of 308 babies aged 1-3 years old underwent a clinical examination to assess dental caries through the International Caries Detection and Assessment System (ICDAS). Parents of babies were asked to answer two questionnaires: one about oral health related quality of life (OHRQoL) of children and their families using the Brazilian Early Childhood Oral Health Impact Scale (B-ECOHIS) and another about sociodemographic characteristics and conditions of babies and their families. Statistical analysis was performed using SPSS - Statistical Package for Social Sciences (SPSS for Windows, version 20.0, SPSS Inc. Chicago, IL, USA) and involved descriptive analysis, Kappa, Kruskal-Wallis and Mann-Whitney test and Poisson model regression adjusted hierarchically. The prevalence of untreated dental caries was 64.3%. Most babies with caries had caries in severe progression stage (53.5%). There was a significant difference between the stage of caries progression and OHRQoL on babies and their families. Severe stage of dental caries [OR = 2.80 95% CI (1.90-4.12)] and lower mother's age [OR = 1.69 95% CI (1:27 to 2:25) were associated with the greatest impact on quality of life. It was concluded that dental caries in more advanced stages of progression were associated with worse quality of life in babies and their families.
Cauduro, Rafael Lampert. "Endotelina-1 plasmática em transplantados renais sob tratamento com ciclosporina". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/4141.
Texto completoPoonlaphdecha, Poonlaphdecha Janchai. "Biosynthesis of 2-acetyl-1-pyrroline, a potent flavour compound in rice : effect of salt stress during plant growth and some clues on the biosynthetic pathway". Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20090.
Texto completoThe effect of salinity during rice plant growth on the biosynthesis of 2-acetyl-1-pyrroline (2AP), characteristic flavour compound of fragrant rice cultivars was studied. Additionally role of 1-pyrroline in 2AP biosynthesis together with source of acetyl group were investigated. Aychade, a fragrant rice was cultivated either in a liquid medium adapted for seedlings or in pots in a greenhouse. A significant increase in 2AP levels in the leaves was observed whatever the concentration of NaCl (1.7 to 170 mM NaCl) in the culture medium. A positive correlation was found between the level of salt and that of 2AP. There was a relationship between the concentration of proline, a major amino precursor of 2AP and 2AP level at highest concentrations of NaCl. Conversely the changes in -aminobutyric acid (GABA), a competitive metabolite in 2AP biosynthesis were not correlated with those of 2AP. In greenhouse experiments, Aychade cultivar was grown under one level of salt solution, 30 mM that corresponds to EC of 3800 ±400 S.cm-1, value considered sufficient to induce salt stress in rice. Timing and duration of application of salt solution varied according to the growth stages. At vegetative phase a positive relation was observed between salt treatment and 2AP as well as proline levels in the leaves. Interestingly grains from all salt treated plants contained significantly higher levels of 2AP than those from control. The highest synthesis occurred when plants were subjected to salt treatment during whole vegetative and reproductive phases. However in the latter case crop yield decreased significantly. Through supplementation of rice callus with 1-pyrroline it was demonstrated that this cyclic imine was limiting factor for the 2AP biosynthesis not only in a fragrant variety but also in a non fragrant variety. Experiments with 13C labelled glucose and fatty acids showed that glucose and fatty acids could be precursors of acetyl group of 2AP
Gord?n, N??ez Manuel Antonio. "Express?o imuno-histoqu?mica das integrinas ?2?1, ?3?1, e ?5?1, em mucosa oral normal, hiperplasia fibroepitelial inflamat?ria oral e displasia epitelial oral". Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17156.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
The objective of this study was perform by the streptoavidin-biotin technique an immunohistochemical analysis of ?2?1, ?3?1e ?5?1 integrins in 11 normal oral mucosa (NOM), 16 oral inflammatory fibroepithelial hyperplasia (OIFH) and 25 oral epithelial dysplasia (OED) (16 mild, 2 moderates and 7 severe), to determine if exists qualitative alteration in the expression of these integrins and if this guard relation with the oral epithelial modifications. It was observed that for the ?2?1 integrin the majority of the sample showed a predominantly intense labeling diffusely distributed in the intercellular contacts and the cytoplasm of cells of the basal and suprabasal layers, without difference of this profile between the different types of specimens, however with a trend to weak or loss of expression in 21.1% of the OEDs, being all the specimens that had not expressed this heterodimer, severe OEDs. For the ?3?1 integrin the majority of the sample showed a weak or absent labeling in basal layer. The ?5?1 integrin showed a predominant strong diffuse labeling in the intercellular contacts and cytoplasm in the suprabasal layer, with difference only in the labeling intensity between the types of specimens, inhabiting this difference in the OEDs, where 12 (48%) specimens had shown a weak labeling. It was concluded that the evaluated integrins can be involved in the cell-cell, cell-ECM interactions modulating the cellular differentiation and maintenance of the epithelial structural arrangement. The variable expression of the ?5?1 integrin in the OEDs, could suggest, respectively, a role of this molecule in the cellular survival, with intention to perpetuate the modified phenotype in these lesions, or a suppressor role on the modified phenotype due to lack of interaction of this molecule with the fibronectina of the MEC
Este estudo se prop?s analisar atrav?s da t?cnica da estreptoavidina-biotina a express?o imuno-histoqu?mica das integrinas ?2?1, ?3?1e ?5?1 em 11 esp?cimes de mucosa oral normal (MON), 16 de hiperplasia fibroepitelial inflamat?ria oral (HFIO) e 25 de displasia epitelial oral (DEO) (16 leves, 2 moderadas e 7 graves), procurando determinar se existe altera??o qualitativa na express?o destas integrinas e se a mesma guarda rela??o com as modifica??es sofridas pelo epit?lio oral. Para a integrina ?2?1 a maioria dos esp?cimes exibiu uma marca??o predominantemente intensa e difusa nos contatos intercelulares e no citoplasma celular das camadas basal e suprabasal, sem diferen?a desse perfil entre os diferentes tipos de esp?cimes, por?m com uma tend?ncia a fraca ou perda da express?o em 21.1% das DEOs, sendo todos os esp?cimes que n?o expressaram marca??o para este heterod?mero DEOs graves. Para a integrina ?3?1 a maioria da amostra exibiu uma marca??o fraca ou ausente predominantemente em camada basal. A integrina ?5?1 exibiu uma forte marca??o difusa nos contatos intercelulares e citoplasm?tica na camada suprabasal, com diferen?a apenas na intensidade de marca??o entre os tipos de esp?cimes, residindo essa diferen?a nas DEOs, onde 12 (48%) esp?cimes exibiram uma fraca marca??o. Concluiu-se que as integrinas avaliadas podem estar envolvidas nas intera??es c?lula-c?lula e c?lula-MEC que garantem a diferencia??o celular e manuten??o do arranjo estrutural tecidual. A vari?vel express?o da integrina ?5?1 nas DEOs, poderia sugerir, respectivamente, um papel dessa mol?cula na sobrevida celular, com o intuito de perpetuar o fen?tipo alterado nessas les?es, ou uma a??o supressora desse fen?tipo devido ? falta de intera??o desta mol?cula com a fibronectina da MEC
Armstrong, Tristan Daniel. "Measurements and predictions of wheel-rail vibration using a 1/5th scale rig". Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402239.
Texto completoPimentel, Victor Figueiredo. "Estudo temporal e dinâmica da diversidade do HIV-1 no Rio de Janeiro". reponame:Repositório Institucional da FIOCRUZ, 2011. https://www.arca.fiocruz.br/handle/icict/4239.
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Universidade de São Paulo. Instituto de Ciências Biomédicas. São Paulo, SP, Brasil
Estudos de epidemiologia molecular do Vírus da Imunodeficiência Humana (HIV-1) realizados no Rio de Janeiro permitiram identificar predominantemente a cocirculação dos subtipos B, da variante B” do subtipo B, F1 e formas recombinantes 20 BF1. Sendo assim, o objetivo desse estudo era traçar a dinâmica temporal dos subtipos e formas recombinantes de HIV-1 em diferentes categorias de exposição ao risco: heterossexuais (HET), bissexuais (BIS) e usuário de drogas injetáveis (UDI) em dois distintos períodos [(1990-92) e (2006-2010)] da epidemia de Aids no Rio de Janeiro. A casuística deste trabalho era composta por indivíduos HIV-1 soropositivos de dois distintos períodos da epidemia de HIV/AIDS, sendo o primeiro de amostras coletas entre 1990-92 (n=130) e o segundo composto por amostras de pacientes diagnosticados entre 2006-2010 (n=88). A subtipagem das amostras foi realizada através da filogenia pelo método de NJ com correção K2p (MEGA 4.0) e a recombinação avaliada pelo bootscan (Simplot 3.2), análise de pontos e árvore de fragmentos. Para entendermos a dinâmica das assinaturas moleculares do subtipo B no topo da alça v3 e a sua distribuição nas distintas categorias exposição de risco realizamos a análise Bayesiana (MrBayes). A análise filogenética da região da gp120 foi realizada para o primeiro período e evidenciou uma prevalência do subtipo B (90%) seguida pelo subtipo F1 (8%) e BF1 (2%). No segundo período do estudo identificamos a seguinte prevalência: (84%) do subtipo B, (9%) F1, (3.5%) C, (2.3%) BF1 e (1.2%) subtipo A. Em geral, das amostras 95 de HET e BIS caracterizadas como subtipo B no primeiro período, 40% tinham a assinatura GPG, 43% GWG e 17% GXG. Na segunda coorte, o subtipo B foi detectado em 74 amostras sendo: 62% GPG, 23% GWG e 15% GXG. A distribuição das variantes do subtipo B do HIV-1 nos dois períodos foi respectivamente: HET (GPG) [60%-69%], (GWG) [20%-13%] e (GXG) [20%-19%] e BIS (GPG) [25%-57%], (GWG) [61%-31%], (GXG) [14%-12%]. O estudo das redes de transmissão dos subtipo B realizado com as amostras do primeiro do estudo que nos permitiu detectar uma distribuição não aleatória destas segundo a categoria de exposição ao risco e assinaturas do topo do v3. De um subconjunto de 79 amostras de ambas coortes, que foram caracterizadas na região da polimerase, 8% apresentaram um perfil de recombinação, sendo estas caracterizadas majoritariamente como URFs e apenas uma amostra CRF40_BF-like. Nossos achados indicam uma redução na frequência da variante B” ao longo do tempo, e sugere que a introdução da variante B” no Rio de Janeiro estava relacionado ao grupo dos BIS.
Human Immunodeficiency virus (HIV-1) molecular epidemiology studies carried out in Rio de Janeiro, Brazil, have identified the predominance of the co-circulation of subtypes B, B” variant, F1 and BF1 recombinants. Thus, the aim of this study was trace the temporal dynamic of subtypes and recombinants forms of the HIV-1 in different exposure categories: heterosexuals (HET), bisexuals (BIS) and injecting drug users (IDU) in two distinct periods [(1990-1992) and (2006-2010)] of the AIDS epidemic in Rio de Janeiro. The subjects of this study were composed of HIV-1 seropositive individuals from two distinct periods of the HIV/AIDS epidemic. The first samples were collected from 1990-1992 (n = 130) and the second batch of samples from patients diagnosed between 2006-2010 (n = 88). The subtyping of the samples was performed by the method of phylogeny NJ with K2p correction (MEGA 4.0) and the recombination was evaluated by bootscan (Simplot 3.2), point analysis and tree fragments. To understand the dynamics of molecular signatures of subtype B on the motif at the tip of the V3 loop, and its distribution in the different exposure categories, we applied the Bayesian analysis (MrBayes). Phylogenetic analysis of gp120 region was performed for the first period and a prevalence of subtype B (90%)was observed, followed by subtype F1 (8%) and BF1 (2%). In the second period of the study we identified the following prevalence: (84%) subtype B, (9%) F1, (3.5%) C, (2.3%) BF1 and (1.2%) of subtype A. Overall, 95 samples 22 from HET and BIS were characterized as subtype B in the first period, 40% were GPG, 43% GWG and 17% GXG. In the second cohort, subtype B was detected in 74 samples: GPGR (62%), GWGR (23%), and GXGR (15%). The distribution of the HIV-1 subtype B variants in the two periods were, respectively: HET (GPG) [60%-69%], (GWG) [20%-13%] e (GXG) [20%-19%] e BIS (GPG) [25%-57%], (GWG) [61%-31%], (GXG) [14%-12%].The study of subtype B transmission network carried out within the samples from the first period of this study allowed us to detect a non random distribution, such as the category exposure and signatures from the top of v3. From a subset of 79 samples from both cohorts, which were analyzed in the polymerase region, 8% showed a recombination profile and were characterized mostly as URFs, with only one sample characterized as CRF40_BF-like. Our findings indicate a reduction of the frequency for the B” variant over time and suggest that the introduction of the B” variant in Rio Janeiro was possibly related to the BIS group.
Elco, Christopher. "Regulation of dsRNA-induced transcription by NFêB and IRF-3 through TLR3 and RIG-1". Connect to text online, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1182005526.
Texto completoCORREIA, T. P. "APLICAÇÃO DO MODELO SWAT PARA SIMULAÇÃO DE CENÁRIOS DE USO DA TERRA NA BACIA HIDROGRÁFICA DO RIO JUCU". Universidade Federal do Espírito Santo, 2016. http://repositorio.ufes.br/handle/10/7688.
Texto completoCORREIA, Tamíres Partélli. Aplicação do modelo SWAT para simulação de cenários de uso da terra na bacia hidrográfica do Rio Jucu. 2016. Dissertação (Mestrado em Ciências Florestais) Universidade Federal do Espírito Santo, Jerônimo Monteiro - ES. Orientador: Prof. Dr. Sidney Sara Zanetti. Coorientador: Prof. Dr. Roberto Avelino Cecílio. A bacia hidrográfica do rio Jucu, juntamente com a bacia do rio Santa Maria da Vitória, são responsáveis por 50% do abastecimento de água no estado do Espírito Santo, e pela produção de 11% da energia elétrica do estado, e abrigam remanescentes florestais importantes para a preservação da biodiversidade. Devido à importância dessa área para conservação e manutenção dos mananciais, faz-se necessário o uso de ferramentas que visam a otimização dos usos da terra e entendimento do comportamento da dinâmica da água na bacia hidrográfica. Entre as técnicas utilizadas para representar os processos hidrológicos, destaca-se a modelagem. Dentre os diversos modelos hidrológicos, ressalta-se o modelo SWAT (Soil and Water Assessement Tool), um modelo físico e semi-distribuído. O presente estudo teve como objetivo principal simular cenários do uso e ocupação da terra, utilizando o modelo SWAT, na bacia hidrográfica do rio Jucu, localizada no estado do Espírito Santo. Foram definidos 6 cenários para avaliar a vazão mínima, média e máxima, sendo eles: com 20% de área de floresta nativa na bacia (F20) (cenário 1); cenário 2: com 36% de área de floresta nativa na bacia (uso da terra atual) (F36); cenário 3: com 50% de área de floresta nativa na bacia (F50); cenário 4: com 100% de área de floresta nativa na bacia (F100); cenário 5: com 100% da área da bacia ocupada com cultivo de eucalipto (E100); cenário 6: com 100% da área da bacia ocupada com pastagens (P100). O modelo foi calibrado e validado para a escala diária e mensal, utilizando índices estatísticos: coeficiente de eficiência de Nash e Sutcliffe, coeficiente de eficiência de Nash e Sutcliffe modificado, coeficiente de determinação e o índice PBIAS, que indicaram o desempenho satisfatório nas fases calibração e validação do modelo. Todos os cenários comprovaram a sensibilidade do modelo às alterações de uso da terra na bacia. Para o estudo das vazões mínimas de referência (Q7,10 e Q90), que diz respeito a disponibilidade de água na bacia hidrográfica, os maiores valores foram encontrados para os cenários 4 (F100), 3 (F50), 5 (E100), 2 (F36), 1 (F20) e 6 (P100), respectivamente, em ordem decrescente. O estudo das vazões mínimas é de extrema importância para avaliar como as florestas são importantes para manter a água dentro do sistema, principalmente nos períodos secos. Já para as vazões máximas (vazões de enchentes), os maiores valores ocorreram nos cenários 6 (P100), 5 (E100), 1 (F20), 2 (F36), 3 (F50) e 4 (F100), respectivamente, também em ordem decrescente. Em relação ao cenário atual (F36), observou-se que houve aumento na vazão média nos cenários 6 (P100) e 1 (F20), e decréscimo da vazão média nos cenários 4 (F100), 3 (F50) e 5 (E100). O estudo permitiu mostrar a importância das florestas para manter uma maior regularidade dos cursos de água, associado com maiores vazões mínimas e menores vazões máximas em cenários com mais floresta, tendo ficado evidente que somente a avaliação da vazão média não é suficiente para análise do comportamento hídrico na bacia.
Fontes, Silvana Brandão. "Estudo geoambiental da bacia do Rio Pardo, a partir da compartimentação em Ottobacias - Escala 1:100.000". Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-10062010-103021/.
Texto completoThis work presents a method of analysis and compartimentalization of the environment that combines the subdivision in Ottobacias (Pfafstetter, 1987) with engineering geological mapping. Initially the basin was divided in 9 areas, represented by the 4 larger Pardo river sub-basins and the remaining 5 areas called interbasins. Furthermore, the characteristics of the attributes, rocky substratum, unconsolidated materials, slope, drains and landforms were obtained by engineering geological mapping and then analyzed in each one of these units. The areas that have not predominance of at least 70%, for the analyzed attributes, were subdivided until reaching this level of homogeneity. In the last stage, the obtained Ottobacias were regrouped in order to have compartiments with similarities at least 70%, considering the analyzed attributes. This compartimentalization leads to the attainment of 90 units. These units belong to 15 sub-groups which their aptitudes and geoenvironmental restrictions were further analyzed. This compartimentalization procedure and analysis were shown to be adequate for regional scales investigation, mainly in basins of great dimensions, as it is the case for the Pardo river basin. This compartimentalization and analyses provide bases for more detailed geoenvironmental studies.
Faria, Adriano Uemura de [UNESP]. "Biodegradação de polipropileno (PP), de polihidroxibutirato (PHB) e da blenda PP/PHB (1:1) por microrganismos de rio poluído e efluente bruto de refinaria de petróleo". Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/94982.
Texto completoConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Plásticos sintéticos, como o polipropileno (PP), são persistentes no meio ambiente, seu alto consumo pela sociedade contemporânea gera acúmulo de material poluindo o meio ambiente. Uma possível solução para o problema pode ser a substituição de polímeros sintéticos por outros biodegradáveis obtidos a partir de fontes renováveis como o poli(3-hidroxibutirato) (PHB). As blendas são uma opção para a substituição parcial dos polímeros sintéticos por polímeros biodegradáveis, considerando que a total substituição dos polímeros sintéticos é algo, ainda, impraticável. A biodegradação, por ser um processo natural que ocorre em ambientes biologicamente ativos, é vista como uma alternativa para o tratamento dos resíduos plásticos. Este trabalho verificou a biodegradação de filmes de PHB, PP e blenda de PP/PHB por microrganismos de águas de rio poluído e efluente bruto de refinaria de petróleo. As análises utilizadas para avaliar as transformações no filme foram perda de massa, microscopia óptica, espectroscopia no infravermelho com transformada de Fourrier (FTIR) e microscopia eletrônica de varredura (MEV). Os resultados mostraram que a degradação do PHB ocorre tanto na fase amorfa como na cristalina, sendo mais intensa em efluente bruto da refinaria de petróleo, seguida da água de rio que recebeu o efluente tratado.
Synthetic plastics such as polypropylene (PP), are persistent in environment, the high consumption by contemporary society generates accumulation of material that pollute the environment. A possible solution to this problem may be replacing synthetic polymers by biodegradable ones obtained from renewable sources like the poly (3-hydroxybutyrate) (PHB). Blends are an option for replacement part of synthetic polymers by biodegradable polymers, however overall replacement of the synthetic polymer is impracticable. Degradation, natural process that occurs in biologically active environments, is aiming as an alternative for the treatment of waste plastics. This work verified the degradation of films PHB, PP and blends of PP/PHB films by microorganisms of water from polluted river and effluent from oil refinery. The analysis used to measure changes in the film were: loss of mass, optical microscopy, Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The results showed that the degradation of PHB occurs in the crystalline and amorphous phases, being more intense in the effluent followed by water from the river that received the treated effluent.
Faria, Adriano Uemura de. "Biodegradação de polipropileno (PP), de polihidroxibutirato (PHB) e da blenda PP/PHB (1:1) por microrganismos de rio poluído e efluente bruto de refinaria de petróleo /". Rio Claro : [s.n.], 2009. http://hdl.handle.net/11449/94982.
Texto completoBanca: Dejanira de Franceschi de Angelis
Banca: Derval dos Santos Rosa
Resumo: Plásticos sintéticos, como o polipropileno (PP), são persistentes no meio ambiente, seu alto consumo pela sociedade contemporânea gera acúmulo de material poluindo o meio ambiente. Uma possível solução para o problema pode ser a substituição de polímeros sintéticos por outros biodegradáveis obtidos a partir de fontes renováveis como o poli(3-hidroxibutirato) (PHB). As blendas são uma opção para a substituição parcial dos polímeros sintéticos por polímeros biodegradáveis, considerando que a total substituição dos polímeros sintéticos é algo, ainda, impraticável. A biodegradação, por ser um processo natural que ocorre em ambientes biologicamente ativos, é vista como uma alternativa para o tratamento dos resíduos plásticos. Este trabalho verificou a biodegradação de filmes de PHB, PP e blenda de PP/PHB por microrganismos de águas de rio poluído e efluente bruto de refinaria de petróleo. As análises utilizadas para avaliar as transformações no filme foram perda de massa, microscopia óptica, espectroscopia no infravermelho com transformada de Fourrier (FTIR) e microscopia eletrônica de varredura (MEV). Os resultados mostraram que a degradação do PHB ocorre tanto na fase amorfa como na cristalina, sendo mais intensa em efluente bruto da refinaria de petróleo, seguida da água de rio que recebeu o efluente tratado.
Abstract: Synthetic plastics such as polypropylene (PP), are persistent in environment, the high consumption by contemporary society generates accumulation of material that pollute the environment. A possible solution to this problem may be replacing synthetic polymers by biodegradable ones obtained from renewable sources like the poly (3-hydroxybutyrate) (PHB). Blends are an option for replacement part of synthetic polymers by biodegradable polymers, however overall replacement of the synthetic polymer is impracticable. Degradation, natural process that occurs in biologically active environments, is aiming as an alternative for the treatment of waste plastics. This work verified the degradation of films PHB, PP and blends of PP/PHB films by microorganisms of water from polluted river and effluent from oil refinery. The analysis used to measure changes in the film were: loss of mass, optical microscopy, Fourier-transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The results showed that the degradation of PHB occurs in the crystalline and amorphous phases, being more intense in the effluent followed by water from the river that received the treated effluent.
Mestre
Stefania, M. P. "MODELAGEM HIDROLÓGICA DA BACIA DO RIO JUCU SOB DIFERENTES CENÁRIOS DE COBERTURA FLORESTAL". Universidade Federal do Espírito Santo, 2017. http://repositorio.ufes.br/handle/10/7667.
Texto completoA água é um recurso natural de domínio público e indispensável para a manutenção da vida no planeta. Há muitas discussões acerca do efeito da cobertura florestal e uso do solo sobre a produção de água. Os estudos hidrológicos contribuem para compreensão do ciclo hídrico, sobretudo em relação à disponibilidade hídrica, caracterizada pela vazão. Este pesquisa tem como objetivo, analisar o impacto da cobertura florestal sobre o comportamento das vazões, na bacia hidrográfica do rio Jucu, Espírito Santo, por intermédio de modelagem hidrológica, com aplicação do modelo computacional Soil and Water Assessment Tool (SWAT). A eficácia da simulação das vazões diárias e mensais foi avaliada por intermédio dos índices estáticos: coeficiente de eficiência de Nash e Sutcliffe (NS); coeficiente de determinação (R2); erro padrão médio normalizado (RSR) e percentual de tendência (PBIAS) que indicaram o desempenho satisfatório nas fases calibração e validação do modelo. Após a calibração e validação do modelo, foram realizadas simulações de cenários alternativos de uso do solo da hidrográfica do rio Jucu. Com o intuído de verificar a influência da posição geográfica do reflorestamento sobre as vazões, os cenários foram construídos de duas formas distintas: a) abordagem aleatória (AA), no qual não importa a localização das áreas reflorestadas; b) abordagem definida (AD), no qual são definidas exatamente em quais posições geográficas ocorrerá o reflorestamento (áreas sob macega e, ou, áreas de preservação permanente). Os resultados da AA demostraram tendência pouco expressiva de redução das vazões simuladas, conforme se incrementa a área de floresta, demostrando que a posição geográfica na qual será realizada a alteração do uso do solo é mais importante para o comportamento das vazões mínimas do que para as vazões médias. Palavras-chave: Soil and Water Assessment Tool, calibração e validação, uso do solo, disponibilidade hídrica.
Bertilsson, Anna. "Att läsa med flyt eller inte läsa med flyt, det är frågan : En kvalitativ studie som belyser hur lärare i 1–3 pedagogiskt arbetar med poetiska texter i sin undervisning samt hur lärarna uppfattar och upplever detta arbete med särskilt fokus på läsflyt". Thesis, Jönköping University, Högskolan för lärande och kommunikation, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53622.
Texto completoThe purpose of the study was to display how different teachers in grades 1–3 describe their pedagogically work with poetic texts in their teaching and how teachers perceive this work with a special focus to promote reading fluency. To answer the purpose, the following questions have been used: · How do the teachers describe their pedagogically work with songs, lyrics, rhymes and chants while teaching Swedish? · What perceptions and experiences do the teachers have about the pedagogical work with songs, lyrics, rhymes and chants while teaching Swedish? · How do teachers describe their view of working with poetic texts to develop students' reading fluency? The study was conducted through qualitative semi-structured interviews with 6 teachers in grades 1–3, the teachers worked at 5 different schools in Central Sweden. The results shows that all of the teachers believed that their attitude and commitment when working with poetic texts are important for students' opportunities for learning in the field. The teachers have a positive attitude towards working with poetic texts in the classroom, however, the teachers do not use these texts to promote reading fluency. The socio-cultural theory is the basis for the study's theoretical framework.
Berlanda, Gabriela. "Frequência de hipoglicemia e satisfação dos pacientes que recebem análogos de insulina para o tratamento do diabetes mellitus tipo 1 no Estado do Rio Grande do Sul". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179733.
Texto completoIntroduction: Strict glycemic control with multiple daily insulin injections is the focus of treatment for type 1 diabetes (T1D), but it is usually associated with an increase in the number of hypoglycemia episodes, and the stress of living with this event may be associated with damages to the mental health of the patient. Although long-acting insulin analogues have pharmacological properties to mimic physiologic insulin profile, literature is not unanimous in showing this effect in comparison to human insulin. In Brazil, only some states, including Rio Grande do Sul (RS), provide insulin analogues for T1D patients. The purpose of this study was to evaluate the frequency of hypoglycemia and the satisfaction of T1D patients who receive short and long acting insulin analogues after their introduction in RS. Methods: A cross-sectional, retrospective study was conducted with adult patients with T1D, residents of 38 cities in Rio Grande do Sul state, who received insulin analogues via the State Department of Health. Demographic and clinical data was evaluated through a self-responded questionnaire; satisfaction, analyzed using the Diabetes Treatment Satisfaction Questionnaire (DTSQs), and Common Mental Disorders (CMD), analyzed using the General Health Questionnaire (QSG-12). Results: A total of 507 T1D patients were included, with a mean age of 38.6 ± 13.7 years, 52% female, with diabetes duration of 18 (11-25) years and 36.8% with complete higher education. The medium score of satisfaction with the treatment (DTSQs) was 32 [IQR25-75 = 29 -35]. Patient satisfaction was not reduced in the long term. The rate of patients with hypoglycemia, including severe and nocturnal hypoglycemia, was not changed with the time use insulin analogues. Although high rates of hypoglycaemia and with most patients with positive 14 screening for common mental disorders patients maintained high satisfaction scores with treatment, which did not reduce in the long term as in other interventions in chronic diseases.
Lopes, Paulo Maurício Silva. "Estudo dos atributos do meio físico como base para o zoneamento geoambiental das bacias do rio Passa Cinco e rio da Cabeça: escala 1:50.000". Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-19102018-200138/.
Texto completoMany attributes of the Passa Cinco and Cabeça river hydrographic basins, related to geology, pedology, unconsolidated materials, slope and least water runoff distance, at a 1:50,000 scale, were evaluated. Such attributes based on adequated proposal and procedures were assessed in terms of constraints to determine the basin potentialities. Geoenvironmental cartographic concepts related to planning, protection and management, have been applied in the develop of the charts and maps presented in this works, which, in turn, were base on the extensive research already done in this area. The GIS IDRISI was used to handle data (storing, retrieving, treatment, overlaying and presentation), mainly to elaborate the charts of Erosion Susceptibility, Water lnfiltration Potential and Agricultural Potential. As final result, this work presents an analysis of the environmental attributes to orientate the geoenvironmental zoning, considering all the aspects mentioned above.
Ururahy, Marcela Abbott Galv?o. "Associa??o do receptor toll-like 2 com o estado pr?-inflamat?rio do diabetes tipo 1". Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13456.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Inflammation has been pointed out as an important factor in development of chronic diseases, as diabetes. Hyperglycemia condition would be responsible by toll-like receptors, TLR2 and TLR4, and, consequently by local and systemic inflammation induction. Thus, the objective of present study was to evaluate type 1 Diabetes mellitus (T1DM) pro-inflammatory state through mRNA expression of TLRs 2 and 4 and proinflammatory cytokines IL-1?, IL-6 and TNF-? correlating to diabetic nephropathy. In order to achieve this objective, 76 T1DM patients and 100 normoglycemic (NG) subjects aged between 6 and 20 years were evaluated. T1DM subjects were evaluated as a total group DM1, and considering glycemic control (good glycemic control DM1G, and poor glycemic control DM1P) and considering time of diagnosis (before achieving 5 years of diagnosis DM1< 5yrs, and after achieving 5 years of diagnosis DM1 <5yrs). Metabolic control was evaluated by glucose and glycated hemoglobin concentrations; to assess renal function serum urea, creatinine, albumin, total protein and urinary albumin-to-creatinine ratio were determined and to evaluate hepatic function, AST and ALT serum activities were measured. Pro-inflammatory status was assessed by mRNA expression of TLRs 2 and 4 and the inflammatory cytokines IL-1?, IL-6 and TNF-?. Except for DM1G group (18.4%), DM1NC patients (81.6%) showed a poor glycemic control, with glycated hemoglobin (11,2%) and serum glucose (225,5 md/dL) concentrations significantly increased in relation to NG group (glucose: 76,5mg/dL and glycated hemoglobin: 6,9%). Significantly enhanced values of urea (20%) and ACR (20,8%) and diminished concentrations of albumin (5,7%) and total protein (13,6%) were found in T1DM patients, mainly associated to a poor glycemic control (DM1P increased values of urea: 20% and ACR:49%, and diminished of albumin: 13,6% and total protein:13,6%) and longer disease duration (DM1 <5yrs - increased values of urea: 20% and ACR:20,8%, and diminished of albumin: 14,3% and total protein:13,6%). As regarding pro-inflammatory status evaluation, significantly increased mRNA expressions were presented for TLR2 (37,5%), IL-1? (43%), IL-6 (44,4%) and TNF-? (15,6%) in T1DM patients in comparison to NG, mainly associated to DM1P (poor glycemic control TLR2: 82%, IL-1?: 36,8% increase) and DM1 <5yrs (longer time of diagnosis TLR2: 85,4%, IL-1?: 46,5% increased) groups. Results support the existence of an inflammatory state mediated by an increased expression of TLR2 and pro-inflammatory cytokines IL-1?, IL-6 and TNF-? in T1DM
A inflama??o tem sido descrita como um fator importante no desenvolvimento de doen?as cr?nicas como o diabetes, e a condi??o da hiperglicemia seria a respons?vel pela ativa??o dos receptores toll-like (TLRs), TLR2 e TLR4, e, conseq?entemente, pela indu??o da inflama??o local e sist?mica. Nesse sentido, o presente estudo teve como objetivo de avaliar o estado pr?-inflamat?rio do Diabetes mellitus tipo 1 (DM1) atrav?s da express?o g?nica de TLRs 2 e 4 e das citocinas pr?-inflamat?rias IL-1?, IL-6 e TNF- ?, e correlacionar com o desenvolvimento da nefropatia diab?tica. Foram estudados 76 pacientes diab?ticos tipo 1 e 100 indiv?duos normoglic?micos NG, na faixa et?ria de 6 a 20 anos. Os indiv?duos diab?ticos foram avaliados como um grupo total DM1, e subdivididos em fun??o do controle glic?mico (diab?ticos compensados DM1C, e n?o-compensados DM1NC) e em fun??o do tempo de diagn?stico (diab?ticos com menos de 5 anos de diagn?stico DM1< 5anos, e a partir de 5 anos de diagn?stico DM1 <5 anos). Para a avalia??o do controle metab?lico foram determinadas as concentra??es de glicose e de hemoglobina glicada; para avaliar a fun??o renal as concentra??es s?ricas de ur?ia, creatinina, albumina, prote?na total e a rela??o albumina/creatinina (RAC) urin?ria; e para fun??o hep?tica a atividade s?rica de AST e ALT. O estado pr?-inflamat?rio foi avaliado a partir da express?o do mRNA dos TLRs 2 e 4, e das citocinas IL-1?, IL-6 e TNF-?. Com exce??o do grupo DM1C (18,4%), os pacientes DM1NC (81,6%) apresentaram um controle glic?mico insatisfat?rio, com valores de mediana para glicose (225,5mg/dL) e hemoglobina glicada (11,2%) significativamente superiores ao grupo NG (glicose: 76,5mg/dL e hemoglobina glicada: 6,9%). Foram obtidos valores aumentados para a ur?ia s?rica (20%) e RAC urin?ria (20,8%); e diminu?dos para albumina (5,7%) e prote?na total (13,6%) nos indiv?duos diab?ticos; e associados a um controle glic?mico insatisfat?rio (DM1NC aumento de 20% para ur?ia e 49% para RAC; e diminui??o de 8,6% para albumina e 12,1% para prote?na total) e a um maior tempo de diagn?stico (DM1 <5anos aumento de 20% para ur?ia e 20,8% para RAC; e diminui??o de 14,3% para albumina e 13,6% para prote?na total). No tocante ? avalia??o do estado pr?-inflamat?rio, as express?es de mRNA se apresentaram elevadas para TLR2 (37,5%), IL-1? (43%), IL-6 (44,4%) e TNF-? (15,6%) nos indiv?duos diab?ticos em rela??o aos NG, sendo principalmente associadas aos grupos DM1NC (controle glic?mico insatisfat?rio TLR2: 82%, IL-1?: 43% de aumento) e DM1 <5 anos (maior tempo de diagn?stico TLR2: 85,4%, IL-1?: 46,5% de aumento). O conjunto de resultados suporta a exist?ncia de um quadro inflamat?rio mediado pelo aumento da express?o do TLR2 e das citocinas pr?-inflamat?rias IL-1?, IL-6 e TNF-? no diabetes tipo 1
Schiavo, Paula Amorim. "Contribui??o ao Controle das Infec??es pelo Herpesv?rus Bovino tipo 1 em Rebanhos Bovinos do Estado do Rio de Janeiro". Universidade Federal Rural do Rio de Janeiro, 2005. https://tede.ufrrj.br/jspui/handle/tede/888.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
BHV-1, the agent of IBR, IPV and IPB, is spread among cattle and buffalo herds, bringing sanitary and economic losses to the livestock industry in Brazil and the world. These diseases can present clinical signs that fake Food-and-Mouth Disease and other vesicular diseases, and differential diagnosis in referenced laboratories is required. The high incidence is a hazardous risk for livestock, as the infection has an insidious character, with a subclinical form, generally unnoticed by the people involved with the cattle maintenance. As the control of the infection is required but there are few reasonable alternatives for the situation within Brazilian herds, we need new strategies for the control of the disease, which will be of major concern for fighting the infection in the world. Vaccines can t protect from infection and confuse diagnostics. Using attenuated vaccines a latent infection can be started. The disease will be the next sanitary barrier for the international trade of animals and products in the European Union. BHV-1 has been eradicated from Austria, Denmark, Finland, Sweden and Switzerland and control programs have started in some other countries. In the present research, we appreciated clinical and epidemiological aspects of the disease, evaluating the BHV-1 presence in Rio de Janeiro state. We have proposed a new method for the diagnostics of infected breeding cows, using the neutralization test in microplates with MDBK monolayers. We have evaluated the efficiency of passive immunization after colostrum ingestion. The effect of Kalanchoe brasiliensis extracts against BHV-1 in MDBK cells was evaluated. The control of the infection with homeopathic and phytotherapy therapeutics is proposed and the publications about BHV-1 vaccination were reviewed. Measures for the control of the infection in cattle herds from Rio de Janeiro State are suggested.
O BHV-1 ? conhecido genericamente como o agente etiol?gico da IBR, da IPV e da IPB, e est? disseminado em rebanhos bovinos e bubalinos do Brasil e do mundo, causando preju?zos econ?micos e sanit?rios ? atividade pecu?ria. Ainda pode apresentar sintomatologia semelhante ? da Febre Aftosa e outras enfermidades vesiculares, de forma que o diagn?stico diferencial de laborat?rio ? exigido. A alta preval?ncia de animais positivos representa um s?rio risco para a atividade pecu?ria, considerando-se a recidividade da infec??o, que apresenta uma forma subcl?nica, facilmente despercebida pelos envolvidos com a bovinocultura. Sendo objeto de controle em todo o mundo, mas com poucas alternativas vi?veis na situa??o atual do rebanho brasileiro, urge a defini??o de novas estrat?gias de controle da infec??o. A vacina??o n?o protege da infec??o, prejudica a identifica??o dos animais portadores e, no caso de vacinas atenuadas, pode estabelecer infec??o latente. A enfermidade ser? a pr?xima barreira sanit?ria ao com?rcio internacional de animais vivos e seus produtos na Uni?o Europ?ia e j? foi erradicada da ?ustria, Dinamarca, Finl?ndia, Su??a e Su?cia, e programas de controle foram iniciados em outros pa?ses europeus. Neste trabalho abordamos aspectos cl?nicos e epidemiol?gicos da doen?a, avaliando a ocorr?ncia da infec??o pelo BHV-1 no Estado do Rio de Janeiro. Tamb?m propomos uma nova metodologia para o diagn?stico de matrizes infectadas pelo BHV-1, usando a t?cnica de neutraliza??o em microplacas com c?lulas MDBK cultivadas em monocamadas; avaliamos a efici?ncia da imuniza??o passiva, a partir da ingest?o do colostro; apresentamos propostas de controle da doen?a com tratamentos homeop?ticos e fitoter?picos; avaliamos o efeito do extrato de Kalanchoe brasiliensis frente ao BHV-1 in vitro; revisamos a literatura referente ? vacina??o contra a doen?a e sugerimos medidas para o controle da doen?a em rebanhos do Estado do Rio de Janeiro.
ARAUJO, E. A. "ESTRUTURA, COMPOSIÇÃO FLORÍSTICA E RELAÇÃO VEGETAÇÃO-AMBIENTE EM FLORESTA OMBRÓFILA DENSA NO PARQUE NACIONAL DO CAPARAÓ, ESPÍRITO SANTO". Universidade Federal do Espírito Santo, 2016. http://repositorio.ufes.br/handle/10/7644.
Texto completoVariáveis ambientais são um dos principais promotores da grande riqueza de espécies nos trópicos, tendo em vista a característica heterogênea nessas regiões. Possivelmente o Brasil seja o país que abriga a maior riqueza de plantas do planeta, fato associado à ocorrência de várias fitofisionomias. Algumas regiões e determinados tipos de formação vegetacional são pouco explorados, levando a lacunas de conhecimento. Assim, as florestas localizadas em altitudes elevadas apresentam grande escassez de pesquisas florísticas. A insuficiência de estudos aliada à ocorrência de espécies endêmicas fazem com que seja comum a descoberta de novas espécies em ambientes montanos. Neste estudo tivemos como objetivo avaliar a estrutura e composição florística de uma comunidade vegetal em Floresta Ombrófila Densa no vale de Santa Marta, Ibitirama, ES, cuja área pertence ao Parque Nacional do Caparaó. Nossas hipóteses foram: 1) as espécies apresentam distribuição heterogênea no vale; 2) essa distribuição ocorre devido à influência de variáveis ambientais edáficas; 3) o local apresenta maior semelhança florística com as Florestas Ombrófila Densa Montana e Altomontana do sudeste do Brasil; e 4) a área possui espécies ainda desconhecidas pela ciência. Nossos resultados deram suporte a essas hipóteses. Verificamos que as espécies apresentam distribuição heterogênea ao longo do vale, sofrendo forte influência de variáveis edáficas (matéria orgânica e acidez potencial) e espaciais. O vale apresenta maior similaridade com florestas montanas e altomontanas da Serra do Mar e Mantiqueira localizadas em São Paulo e Minas Gerais. Demonstramos também a grande riqueza de espécies na área, com táxons em categorias de risco de extinção, além do registro de possíveis novas espécies. Palavras-chave: heterogeneidade ambiental, floresta de altitude, riqueza de espécies.
Meiler, Michael Rudolf. "In Vivo Characterization of RIF-1 Tumors via Diffusion and Fluorine-19 NMR Methods". Link to electronic version, 1999. http://www.wpi.edu/Pubs/ETD/Available/etd-100999-170738/.
Texto completoAugusti, Letícia Maffi. "Anticorpos contra o herpesvírus canino tipo 1 em cães domiciliados e de abrigos no Rio Grande do Sul". Universidade Federal de Santa Maria, 2017. http://repositorio.ufsm.br/handle/1/11622.
Texto completoCanine herpesvirus type 1 (CHV-1) is associated with reproductive disorders and neonatal mortality. CHV-1 is widely distributed and is considered enzootic in the dog population. Occurrence of infection in the country is unknown, and thus the real need for additional prevention measures, such as vaccination, is unknown. Therefore, the aim of this study was to investigate the presence of antibodies against CHV-1 in serum samples of domestic and sheltered dogs of different regions from Rio Grande do Sul state. For this, 914 serum samples from domestic dogs from Santa Maria (332 dogs obtained from Hospital Veterinário Universitário - HVU / UFSM and 381 from in the anti-rabies vaccination campaign), a veterinary clinical laboratory in Porto Alegre (n=43) and 158 from shelters dogs of Passo Fundo (n=98) and Cachoeira do Sul (n=60). Serum samples were tested by virus-neutralization test (VN) for CHV-1 antibodies. Neutralizing antibodies against CHV-1 in titers equal or higher than 4 were detected in 66,9% (612/914) of the samples. Among household dogs, 79,5% (264/332) from HVU/UFSM and 57.2% (218/381) from the vaccination campaign. Among the samples collected in the clinical laboratory in Porto Alegre, 41.8% (18/43) had antibodies to CHV-1. Among the sheltered dogs, 72.4% (71/98) of samples from Passo Fundo and 68.3% (41/60) from Cachoeira do Sul had antibody to CHV-1. The antibody titers ranged among the groups, but many samples had titers higher than 128. Since there are no commercial vaccines against CHV-1 in Brazil, the presence of neutralizing antibodies indicates the circulation of CHV-1 in the investigated population. Based on these findings, control measures, prevention, immunization and the need for a correct diagnosis should be considered.
O herpesvírus canino tipo 1 (CHV-1) está associado a desordens reprodutivas e mortalidade neonatal em cães. O CHV-1 tem distribuição mundial e é considerado enzoótico na população canina, no entanto, a frequência da infecção no país ainda é desconhecida, e assim, se desconhece a real necessidade de medidas adicionais de prevenção, como a vacinação. Com isso, o objetivo deste trabalho foi investigar a presença de anticorpos contra o CHV-1 em amostras de soro de cães domiciliados e de abrigos em diferentes cidades do Rio Grande do Sul. Para isso, foram testadas 914 amostras de soro de cães domiciliados de Santa Maria (332 amostras obtidas do Hospital Veterinário Universitário - HVU/UFSM e 381 obtidas durante a campanha de vacinação antirrábica de 2015), de um laboratório clínico veterinário de Porto Alegre (n=43) e 158 de cães de abrigos dos municípios de Passo Fundo (n=98) e Cachoeira do Sul (n=60). Estas amostras de soro foram testadas pela técnica de soroneutralização (SN) para anticorpos contra o CHV-1. Anticorpos neutralizantes contra o CHV-1, em títulos iguais ou superiores a 4, foram detectados em 66,9% (612/914) das amostras. Entre os cães domiciliados de Santa Maria, 79,5% (264/332) provenientes do HVU/UFSM e 57,2% (218/381) das obtidas durante a campanha de vacinação antirrábica de Santa Maria foram positivas. Das amostras coletadas no laboratório clínico em Porto Alegre, 41,8% (18/43) foram positivas para anticorpos para CHV-1. Entre os cães de abrigo, 72,4% (71/98) das amostras coletadas em Passo Fundo e 68,3% (41/60) das amostras do abrigo de Cachoeira do Sul foram sorologicamente positivas para CHV-1. Os títulos de anticorpos entre os grupos foram variáveis, mas a maioria dos animais positivos possuía títulos acima de 128. Como não existem vacinas comerciais contra o CHV-1 no Brasil, a presença de anticorpos neutralizantes indica a circulação do CHV-1 na população canina das cidades estudadas. Com base nesses achados, medidas de controle, prevenção, imunização e a necessidade de um correto diagnóstico devem ser consideradas contra o CHV-1 em cães no sul do Brasil.
Coutinho, Leonam Gomes. "Estudo do papel da prote?na multifuncional APE1/Ref-1 sobre a resposta inflamat?ria na meningite bacteriana". Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12649.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Despite advances in antibiotic therapy, bacterial meningitis (BM) remains with high mortality and morbidity rates in worldwide. One important mechanism associated to sequels during disease is the intense inflammatory response which promotes an oxidative burst and release of reactive oxygen species, consequently leading to cell death. Activation of DNA repair enzymes during oxidative stress has been demonstrated in several neurological disorders. APE1/Ref-1 is a multifunctional protein involved in DNA repair and plays a redox function on transcription factors such as NFkB and AP-1.The aim of this study was assess the role of APE1/Ref-1 on inflammatory response and the possibility of its modulation to reduce the sequels of the disease. Firstly it was performed an assay to measure cytokine in cerebrospinal fluid of patients with BM due to Streptococcus pneumoniae and Neisseriae meningitides. Further, a cellular model of inflammation was used to observe the effect of the inhibition of the endonuclease and redox activity of APE1/Ref-1 on cytokine levels. Additionally, APE1/Ref-1 expression in cortex and hippocampus of rat with MB after vitamin B6 treatment was evaluated. Altogether, results showed a similar profile of cytokines in the cerebrospinal fluid of patients from both pathogens, although IFNy showed higher expression in patients with BM caused by S. pneumoniae. On the other hand, inhibitors of APE1/Ref-1 reduced cytokine levels, mainly TNF-?. Reduction of oxidative stress markers was also observed after introduction of inhibitors in the LPS-stimulated cell. In the animal model, BM increased the expression of the protein APE1/Ref-1, while vitamin B6 promoted reduction. Thereby, this data rise important factors to be considered in pathogenesis of BM, e.g., IFNy can be used as prognostic factor during corticosteroid therapy, APE1/Ref-1 can be an important target to modulate the level of inflammation and VIII oxidative stress, and vitamin B6 seems modulates several proteins related to cell death. So, this study highlights a new understanding on the role of APE1/Ref-1 on the inflammation and the oxidative stress during inflammation condition
A meningite bacteriana (MB) ? uma doen?a infecciosa que permanece com altas taxas de mortalidade e morbidade em todo o mundo, principalmente em pa?ses subdesenvolvidos, apesar dos avan?os na antibioticoterapia. Um dos principais mecanismos associados ?s sequelas durante a MB ? a elevada resposta inflamat?ria, que promove uma exacerbada quantidade de esp?cies reativas de oxig?nio (ERO) levando ?s c?lulas a apoptose ou necrose. A ativa??o de enzimas de reparo de DNA durante o estresse oxidativo tem sido demonstrada nas mais diversas desordens. Uma importante enzima envolvida neste processo ? a endonuclease apur?nica/apirimidinica1/fator redox-1 (APE1/Ref-1). Ela ? uma prote?na multifuncional envolvida no reparo de DNA e na redu??o de fatores envolvidos com a resposta inflamat?ria, tais como o fator nuclear kappa B (NFkB) e prote?na ativadora 1 (AP-1). Este estudo teve como objetivo identificar o envolvimento de APE1/Ref-1 na resposta inflamat?ria visando a possibilidade de sua utiliza??o como alvo terap?utico na redu??o de sequelas durante a MB. Para isto, inicialmente foi realizado uma an?lise no perfil de express?o de citocinas em l?quor de pacientes com meningite causada por Streptococcus pneumoniae e Neisseriae meningitidis visando selecionar moduladores inflamat?rios de interesse para ensaios em cultura de c?lula subsequentes. Em seguida, utilizando um modelo celular de indu??o com LPS foi avaliado o efeito da inibi??o da atividade de reparo e redox de APE1 sobre a express?o de citocinas inflamat?rias. Por fim, foi observada a express?o de APE1 no c?rtex (CX) e hipocampo (HC) de ratos com MB frente a uma terapia adjuvante com vitamina B6. Nossos resultados mostraram um perfil de moduladores inflamat?rios muito semelhante no l?quor dos pacientes com MB causada pelos pat?genos estudados, embora interferon gama (IFNy) tenha sido VI significativamente mais expresso em pacientes com S. pneumoniae do que N. meningitidis. Quanto ao uso dos inibidores das fun??es, redox e de reparo, de APE1/Ref-1 no modelo in vitro, houve redu??o significativa na express?o de algumas citocinas, principalmente o fator de necrose tumoral-alfa (TNF-?). Al?m disso, os inibidores demonstraram uma redu??o nos n?veis de ERO nas c?lulas estimuladas com LPS. No modelo animal, a express?o prot?ica de APE1/Ref-1, no CX e HC dos ratos, foi modulada ap?s introdu??o da vitamina B6. Portanto, esses dados fornecem um novo olhar para a fisiopatologia da MB, em que citocinas como IFNy podem ser usadas em um diagn?stico diferencial entre meningites causadas por S. pneumoniae e N. meningitidis. A prote?na de reparo de DNA, APE1/Ref-1, parece ser um alvo potencial na modula??o da resposta inflamat?ria e do estresse oxidativo, bem como a terapia adjuvante com vitamina B6 mostra ter um papel sobre a express?o de APE1/Ref-1. Consequentemente, o conhecimento obtido neste estudo pode ser importante na melhoria do progn?stico da MB, al?m de contribuir para entender a associa??o entre o reparo de DNA e inflama??o
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Pujol, Junior Enio. "O gerente médio nas agências nível 1 do Banco do Brasil, no estado do Rio Grande do Sul". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2002. http://hdl.handle.net/10183/2153.
Texto completoCUNHA, André Mols Faria da. "Lima Barreto: em diálogo com a modernidade". Universidade Federal de Goiás, 2006. http://repositorio.bc.ufg.br/tede/handle/tde/2378.
Texto completoAuthor of a huge written production, in spite of the short time he lived, Lima Barreto presents himself as one of the great brazilian writers, living in a particularly delicate moment in the country s history, more specifically during the transition between Empire and the First Republic and the first years of the new regime. Brazil, in the times of Lima Barreto, saw itself thrown in a turmoil of astounding power. The Republic s proclamation was the beginning of a crisis continuity, that took place from 1889 and on. Having as a goal, among other reasons, to have a higher level of similarity with the appearance of an European metropolis from the end of the XIX century, the city of Rio de Janeiro suffered, between this period and the beginning of the XX century a profound reform. The modifications would increase, in theory, the possibilities of business and exposition in relation to the rest of the civilized world of the time. Such innovations were mirrored, in part, in the work developed by Hausmann in Paris. In Rio de Janeiro, such adaptation process was named Regeneração, being commanded by the city s mayor at the time, Pereira Passos. One of the most important and complete registers of such period is the work of Lima Barreto, author who lived in lived with in the then country s capital city. In this work I deal specifically of the novel Vida e morte de M. J. Gonzaga de Sá, of Lima Barreto, having as focus the use the author makes of the socratic dialogue as discourse tool. In this novel, the character Gonzaga de Sá sees with sadness his Rio de Janeiro, old friend, gradually disappear while a stranger takes its place. The number of themes dealt with in this novel is striking. I start with the hipotesys that such situation is possible due to the text s form, which is predominantly the socratic dialogue. I believe that it is thanks to it and its free creative character that the discussion of this miryad of themes dealt by Gonzaga de Sá and his partner, Augusto Machado is made possible.
Autor de grande produção, apesar do pouco tempo que viveu, Lima Barreto se apresenta como um dos grandes literatos brasileiros, vivendo em uma época particularmente delicada do país, mais especificamente durante a transição entre Império e Primeira República e os primeiros anos do novo regime. O Brasil à época de Lima Barreto se viu lançado em um turbilhão de força impressionante. A proclamação da República foi o início de uma continuidade de crises, que se sucederam a partir de 1889. Objetivando, entre outros motivos, a obtenção de um maior grau de semelhança com a aparência de uma metrópole européia do fim do séc. XIX, a cidade do Rio de Janeiro sofreu, entre esse período e o início do séc. XX uma profunda reforma. As modificações aumentariam, teoricamente, as possibilidades de negócios e exposição em relação ao resto do mundo civilizado da época. Tais inovações se espelharam, em parte, no trabalho desenvolvido por Hausmann em Paris. No Rio de Janeiro, tal processo de adequação foi denominado de Regeneração, tendo sido comandado pelo prefeito da cidade na época, Pereira Passos. Um dos mais importantes e completos registros de tal época é a obra de Lima Barreto, autor que viveu e conviveu na então capital do país. Neste trabalho trato especificamente da obra Vida e morte de M. J. Gonzaga de Sá, de Lima Barreto, tendo como foco o uso que o autor faz do diálogo socrático enquanto ferramenta discursiva. No romance, a personagem Gonzaga de Sá vê, amargurada, o seu Rio de Janeiro, antigo conhecido, desaparecer paulatinamente enquanto um estranho toma o seu lugar. É marcante a quantidade de temas abordados no romance em questão. Parto da hipótese de que tal situação é possível devido à forma do texto, que é predominantemente o diálogo socrático. Acredito que é graças a ele e a seu caráter criativo livre que é viabilizada a discussão desta miríade de temas que são tratados por Gonzaga de Sá e seu interlocutor, Augusto Machado.
Maraval, Isabelle. "Caractérisation et biosynthèse de l'arôme des riz parfumés de Camargue : influence des conditions agro-climatiques sur l'expression de l'arôme". Montpellier 2, 2009. http://www.theses.fr/2009MON20071.
Texto completoScented rice is more and more sought by the consumer. Two cultivars, Basmati and Thai cover the market and it's difficult for the cultivars selected for Camargue area, to compete with them. Scented cultivars present a transformation enabling them to accumulate 2-acetyl-1-pyrroline (2AP, popcorn like aroma) which activation dependent upon the agro-environmental conditions of growth. This Ph D study aims at: (i) characterizing cooked rice flavor compounds of Camargue scented cultivars compared to those of international standards. GC/O and GC/MS analyses confirmed the complexity of the flavor (2AP, compounds resulting from the degradation of fatty and cinnamic acids). The Camargue cultivar, Aychade, is similar to the standards with some specificity. (ii) evaluating the influence of salinity on 2AP biosynthesis in grains and in aerial parts. A new method, stable isotope dilution (SPME/GC/MS/MS) was developed and showed that 2AP content in grain increases with the stress applied during grain filling and the vegetative phase
Liu, Yao-Hsien. "Effect of rib spacing on heat transfer and friction in a rotating two-pass rectangular (AR=1:2) channel". Texas A&M University, 2005. http://hdl.handle.net/1969.1/4131.
Texto completoMaseda, Michael Vincent [Verfasser] y Hans-Walter [Akademischer Betreuer] Rix. "Starbursting Dwarf Galaxies at z > 1 : a near-infrared spectroscopic study / Michael Vincent Maseda ; Betreuer: Hans-Walter Rix". Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180500296/34.
Texto completoKnust, Sheila Soraya Alves. "Avaliação das imagens radarsat-1 sob diferentes geometrias de observação em aplicação geológica no Vale do Rio Curaçá (Bahia)". Instituto Nacional de Pesquisas Espaciais, 2007. http://urlib.net/sid.inpe.br/mtc-m17@80/2007/12.07.12.38.
Texto completoSynthetic aperture radar images have been successfully used in geological applications, mainly in moist tropical regions. However, only a few examples deal with radar images in semi arid regions, where the interaction between the electromagnetic radiation and the rock/soil is more direct, due to the lack of dense vegetation coverage. Therefore, the objective of this investigation is to evaluate the potencial of providing geological information from a set of RADARSAT-1 satellite images, acquired under different incidence angles, look directions and spatial resolutions at the Curaçá River Valley region. The study area is located in the north of Bahia state and has economic potential owing to copper mineralization hosted in mafic-ultramafic rocks. The study area is characterized by plain landscape, semi-arid weather, caatinga type vegetation and residual soil exposure. Two research approaches have been considered in this investigation: (a) qualitative, through visual monoscopic analysis of the high resolution images and stereoscopic in lower SAR resolution images; (b) quantitative, by principal component analysis, superficial roughness field measurement analysis, rock distinction statistic analysis (test-t Student), and the study between target and sensor parameters relations (simple regression analysis). The qualitative study showed good performance in characterizing geologically the region both with monoscopic and stereoscopic visual analysis, delimiting more precisely rock contacts, faults and structure cinematics. In relation to the quantitative study, the principal component analysis shows that the technique is efficient when studying the sensor parameters influence (incidence angles and look directions variations) with results indicating that the azimute sight variation is more relevant than the incidence angle in this type of environment. The backscattering statistical analysis corroborates this statement and also indicates that images with higher incidence angles and descendent orbit lead to better distinction results between the rock types. The analysis of the relationship between the backscattering coefficient and the target parameters indicated that the terrain micro roughness is the main responsible for the target response variations. The efects of the local slope variation also contributed to the detected response variations.
Silva, Heglayne Pereira Vital da. "Estudo dos genes do complexo do ant?geno leucocit?rio humano (hla) associados ? susceptibilidade ao diabetes mellitus tipo 1". Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13496.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Of all of the genes associated with the development of Diabetes mellitus type 1 (T1D), the largest contribution comes from the genes in the Human Leukocyte Antigen (HLA) region, mostly the class II DR e DQ genes. Specific combinations of alleles DRB1, DQA1 and DQB1 constituting haplotypes, and further, a combination of more than one haplotype, providing multilocus genotypes are associated with susceptibility, protection and neutrality to DM1. Thus, the aim of present study was to verified the association of polymorphisms of HLA genes class II with susceptibility to type 1 diabetes mellitus (T1D). Ninety-two patients with T1D and 100 individuals normoglycemics (NG) aged between 6 and 20 years were studied. Genomic DNA was obtained from peripheral whole blood, collected in EDTA tube, using the extraction kit Illustra Triple Prep?, GE Healthcare. For HLA typing was used DNA LABType system by One Lambda kit applying Luminex? technology to the method of PCRSSO typing reverse. The alleles DRB1*03:01, *04:05, *04:01, *04:02, DQA1*03:01g, *05:01g, DQB1*02:01g, *03:02, the haplotypes DRB1*03:01-DQA1*05:01-DQB1*02:01, DRB1*04:05-DQA1*03:01g-DQB1*03:02, DRB1*04:02-DQA1*03:01g-DQB1*03:02, DRB1*04:01-DQA1*03:01g-DQB1*03:02 and DR3-DQ2/DR4-DQ8 genotype were significantly associated with the chance of developing T1D. The alleles DRB1*11:01, *15:03, *15:01, *13:01, DQA1*01:02, *04:01g, *01:03, DQB1*06:02, *03:01g, *06:03, *04:02, the haplotypes DRB1*11:01-DQA1*05:01-DQB1*03:01, DRB1*13:01-DQA1*01:03-DQB1*06:03 and DRX-DQX/DRX-DQX genotype, formed by other than the DR3-DQ2 or DR4-DQ8 haplotypes, were significantly associated with T1D protection Despite the major racial Brazilian, even at the regional level, these results are similar to the majority of alleles, genotypes and haplotypes of HLA class II-related susceptibility or resistance to T1D, extensively described in the literature for Caucasian population. Children with age at diagnosis less than 5 years of age had significantly higher frequency of the heterozygous genotype DR3-DQ2/DR4-DQ8 compared to children with age at diagnosis than 5 years old. These results also demonstrate strong association of the genetic profile of the class II HLA for this age group, possibly associated with the severity and rapid progression to the onset of T1D. The knowledge of HLA class II genes may be useful in genetic screens that allow the prediction of T1D
De todos os genes j? relacionados com o desenvolvimento do Diabetes mellitus tipo 1 (DM1), a maior contribui??o vem da regi?o do genoma onde est?o localizados os genes do Ant?geno Leucocit?rio Humano (HLA), sobretudo os genes da classe II do HLA: DR e DQ. Espec?ficas combina??es de alelos DRB1, DQA1 e DQB1 formando hapl?tipos, e ainda, a combina??o de mais de um hapl?tipo, formando gen?tipos multilocus s?o associados com a susceptibilidade, neutralidade e prote??o ao DM1. Dessa forma, o objetivo do estudo foi verificar a associa??o dos polimorfismos dos genes do complexo HLA classe II com a susceptibilidade ao DM1, em pacientes do Rio Grande do Norte. Foram estudados 92 indiv?duos com DM1 e 100 indiv?duos normoglic?micos (NG), com idade entre 6 e 20 anos. O DNA gen?mico foi obtido a partir do sangue total perif?rico, coletado em tubo com EDTA, utilizando o kit de extra??o Illustra Triple Prep?, GE Healthcare. Para a tipagem do HLA foi utilizado o sistema DNA LABType atrav?s de kits One Lambda, que aplica a tecnologia Luminex? ao m?todo de tipagem por PCR-SSO reverso. Os alelos DRB1*03:01, *04:05, *04:01, *04:02; DQA1*03:01g, 05:01g; DQB1*02:01g, *03:02; os hapl?tipos DRB1*03:01-DQA1*05:01-DQB1*02:01, DRB1*04:05-DQA1*03:01g- DQB1*03:02, DRB1*04:02-DQA1*03:01g-DQB1*03:02, DRB1*04:01-DQA1*03:01g- DQB1*03:02 e o gen?tipo heterozigoto, DR3-DQ2/DR4-DQ8 foram significativamente associados com a chance de desenvolvimento do DM1. J? os alelos DRB1*11:01, *15:03, *15:01, *13:01; DQA1*01:02, *04:01g, *01:03; DQB1*06:02, *03:01g, *06:03, *04:02; os hapl?tipos DRB1*11:01-DQA1*05:01-DQB1*03:01, DRB1*13:01-DQA1*01:03-DQB1*06:03 e o gen?tipo DRX-DQX/DRX-DQX, formado por outros hapl?tipos que n?o DR3-DQ2 ou DR4-DQ8, foram significativamente associados a prote??o ao DM1. Apesar da grande miscigena??o racial brasileira, at? em n?vel regional, estes resultados s?o semelhantes a maioria dos alelos, hapl?tipos e gen?tipos de HLA classe II relacionados ? susceptibilidade ou prote??o ao DM1, extensivamente descritos na literatura para a popula??o caucasiana. Crian?as com idade ao diagn?stico inferior a 5 anos de idade apresentaram significativamente maior frequ?ncia do gen?tipo heterozigoto DR3-DQ2/DR4-DQ8, quando comparada ?s crian?as com idade ao diagn?stico superior a 5 anos de idade. Esses resultados demonstram tamb?m forte envolvimento do perfil gen?tico da classe II do HLA para esta faixa et?ria, que estaria relacionada possivelmente com a gravidade e a r?pida progress?o para o in?cio do DM1. O conhecimento dos genes HLA de classe II pode ser ?til em triagens gen?ticas que possibilitem a predi??o do DM1
Lima, Vinicius Ferreira de. "Estudo Neotectônico e Geomorfológico em margem continental passiva: um estudo de caso na carta topográfica Rio Mamuaba 1:25.000". Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9803.
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This current study aims to understand the geomorphological framework and morphotectonic aspects from area of the topographic chart Rio Mamuaba 1: 25.000, considering as an analytical basis the existing interrelationships between geology, topography and hydrography of the area. It sought to point out neotectonic evidences in the area including the chart by morphotectonic and morphometric analysis applied to segments of the drainage network. The investigated topographic chart is located on the eastern edge of the Paraiba state, north-eastern Brazil. To provide the analysis of morphotectonic were applied fluvio-morphometric indices, to investigate anomalies in patterns of drainage networks, related to recent tectonics. The Indexes Slope / Extension Relation (SER) and Bottom/ Valley Height Rate (BVHR) were used in this study, with the intention to indicate possible changes in the course of the rivers over the geological time, and find out the width and depth of the slopes. The results allowed to recognize anomalous patterns in the drainage network both in qualitative and quantitative aspects, and also in the landforms, which likely are direct related to recent tectonic events of regional character, which covers the eastern edge of the Brazilian northeast. The area of the current study is inserted between the Precambrian crystalline basement and the Sedimentary Basin of Paraiba, specifically in Alhandra Sub-Basin. On the surface, the cited area is represented mostly by Barreiras formation (Miocene) which covers, in part, the Paraiba basin and crystalline base in a discordant way. For morphostructural and morphotectonic analysis, was produced thematic maps: hipsometric, declivity and geomorphological, beyond substantial adjustments in the geological chart to suit the scale of 1: 25.000, roughness analysis, topographic profiles and 3D models. The thematic maps and Elevation Digital Model (EDM) were generated in specialized softwares, based on data extracted from Rio Mamuaba chart by manual vectorization, such as contour lines with equidistance of 10 meters, measured points and other elements, such as hydrography, highways and roads. The confection of the geomorphological chart was based on the methodology proposed by Ross (1992), which is based on the taxonomic units of relief. Within the geomorphology of the area showed up two main patterns of deformation: the succession of grabens and horsts and topographical domes that may be associated with tectonic inversion structures. The results show that it can not deny the influence of post-Miocene tectonics in relief configuration on an edge of a Continental Passive Border.
O presente estudo tem por objetivo compreender o quadro geomorfológico e os aspectos morfotectônicos da área da carta topográfica Rio Mamuaba 1:25.000, considerando como embasamento analítico as inter-relações existentes entre a geologia, o relevo e a hidrografia da área. Procurou-se apontar evidências de neotectônica na área compreendida pela carta, através da análise morfotectônica e morfométrica aplicada em seguimentos da rede de drenagem. A carta topográfica investigada está situada na borda oriental do estado da Paraíba, Nordeste do Brasil. Para a análise da morfotectônica foram aplicados índices fluvio-morfométricos, no sentido de averiguar anomalias nos padrões de redes de drenagem, relacionadas à tectônica recente. Os índices Relação Declividade/Extensão (RDE) e Razão Fundo/Altura de Vale (RFAV) foram empregados nesse estudo, com a intensão de indicar possíveis mudanças no curso de rios ao longo do tempo geológico, e averiguar a largura e profundidade das vertentes. Os resultados permitiram reconhecer padrões anômalos na rede de drenagem tanto nos aspectos qualitativos como quantitativos, e nas formas de relevo, que provavelmente encontram correspondência direta com eventos tectônicos recentes, de caráter regional, que abrange toda a borda oriental do Nordeste do Brasil. A área está inserida entre o embasamento cristalino do Pré-Cambriano e a Bacia Sedimentar da Paraíba, mais especificamente na Sub-Bacia de Alhandra. Em superfície, a referida área está representada, na sua maior parte, pela Formação Barreiras (Mioceno), que recobre, em partes, a Bacia da Paraíba e o embasamento cristalino de forma discordante. Para a análise morfoestrutural e morfotectônica, elaboraram-se cartas: hipsométrica, clinográfica e geomorfológica, além de ajustes substanciais na carta geológica para adequar a escala de 1:25.000, análise da rugosidade, perfis topográficos e modelos em 3D. As cartas temáticas e o MDE foram gerados em softwares especializados, com base em dados extraídos da carta Rio Mamuaba por meio de vetorização manual, como: curvas de nível com equidistância de 10 metros, pontos cotados e outros elementos, a exemplo da hidrografia, rodovias e estradas. A elaboração da carta geomorfológica foi fundamentada na metodologia proposta por Ross (1992), que tem como base as unidades taxonômicas do relevo. Dentro da geomorfologia da região, apresentaram-se dois padrões principais de deformação: a sucessão de grabens e horsts e domos topográficos, que podem estar associados às estruturas de inversão tectônica. Os resultados obtidos comprovam que não se pode negar a influência da tectônica pós-miocênica na configuração do relevo nas adjacências de uma Margem Continental Passiva.
Santos, Kelly Teixeira dos. "Estudo do polimorfismo Ser49Gly do gene do receptor beta adrenérgico 1 (β-adr 1) na população do estado do Rio de Janeiro, Brasil estratificada por cor da pele e ancestralidade genômica". Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=5469.
Texto completoAs doenças cardiovasculares possuem a maior taxa de óbitos no mundo, e notavelmente nos últimos anos as pesquisas genéticas sobre as mesmas estão baseadas em estudos de associação, no qual o gene suspeito que esteja em maior frequência entre os pacientes passa a ser considerado um possível fator causal. Os polimorfismos genéticos que ocorrem no receptor beta-adrenérgico podem resultar em mudanças significativas na função do receptor, podendo acarretar fisiopatologias. Neste trabalho, o objetivo foi estimar a diversidade e a frequência do polimorfismo Ser49Gly do gene do receptor beta-adrenérgico 1 a partir de uma amostra de 188 indivíduos da população do Estado do Rio de Janeiro. As frequências também foram analisadas a partir da estratificação da amostra por critério fenotípico em função do padrão de cor da pele em (negros e não negros) ou ancestralidade genética em (afrodescendente e não afrodescendente), definida através da informação dos marcadores de ancestralidade Indels e SNP de cromossomo Y, para avaliar se os padrões de ancestralidade ou cor da pele são fundamentais para a diferenciação e distanciamento genético. Fragmentos de interesse foram amplificados por PCR (reação de cadeia de polimerase) com primers específicos para o marcador Ser49Gly e as reações de genotipagem foram realizadas com enzimas de restrição Eco0109I. Os valores da heterozigosidade variaram entre 0,25-0,50 e 0,20-0,41 nos grupos estratificados por ancestralidade e cor da pele, respectivamente. No que diz respeito à análise do equilíbrio de Hardy-Weinberg, não houve um desvio significativo na distribuição do marcador nas amostras gerais do Estado do Rio de Janeiro, ou mesmo nas amostras estratificadas. A distribuição dos alelos na amostra dos 188 indivíduos da população geral do Rio de Janeiro (AC_RJ) mostrou uma frequência de 80,30% e 19,70% para o alelo selvagem e mutado Ser49Gly, respectivamente. A comparação das análises sobre a distribuição das frequências alélicas para este marcador mostrou a ocorrência de diferenças significativas na distribuição das frequências alélicas entre negros e não negros e afrodescendentes e não afrodescendentes. A diferença significativa observada entre os negros e afrodescendentes, foi em menor grau de distanciamento. A informação obtida em relação à ancestralidade foi crucial para a obtenção dos dados sobre o aumento da variável mutada do polimorfismo Ser49Gly nas populações negras e afrodescendentes do Estado Rio de Janeiro. Tal evidência, em combinação com estudos clínicos podem contribuir para uma análise pormenorizada do padrão de susceptibilidade à doença em questão, em falhas do mecanismo deste receptor.
Cardiovascular diseases have the highest death rate in the world, and notably in recent years genetic research about them are based on association studies, in which the gene suspected to be at a higher frequency among patients is now considered a possible causal factor. Genetic polymorphisms that occur in the beta adrenergic receptor can result in significant changes in the receptor function that may trigger physiopathologies. The main aim of this study was to estimate the diversity and the frequency of Ser49Gly polymorphism of Βeta adrenergic 1 receptor gene in a sample of 188 individuals of the population of Rio de Janeiro. The frequencies were also analyzed from the sample stratification by phenotypic criteria due to skin color pattern (blacks and non-blacks) or by genetic ancestry (African descent and non-African descent), defined by ancestry information SNP and Indels markers from Y chromosome, to evaluate whether the ancestry criteria and/or skin color are crucial to the pattern of differentiation and genetic distance. Fragments of interest were amplified by PCR (polymerase chain reaction) with specific primers for the marker Ser49Gly and genotyping reactions performed by restriction with the enzyme Eco0109I. The values of heterozygosity ranged from 0.25 to 0.50 and 0.20 to 0.41 in the groups stratified by ancestry and skin color, respectively. Regarding the analysis of EHW, there was no significant deviation from this marker genotype distribution in Rio de Janeiro sample or even the stratified sample. The distribution of alleles in the sample of 188 individuals from the general population of Rio de Janeiro (AC_RJ) shows a frequency of 80.30% and 19.70% for the wild-type allele mutated Ser49 and Gly49, respectively. The comparison analysis showed the occurrence of significant differences in the distribution of allele frequencies of this marker between blacks and non-blacks and African descent and non-African descent. A significant difference was also observed between blacks and African descent, with a lesser degree of detachment. The information obtained in relation to ancestry was crucial for obtaining data on the increase in variable mutated polymorphism Ser49Gly in the black populations and African descent in Rio de Janeiro State. Such evidence, in combination with clinical studies may contribute to a detailed analysis of the pattern of susceptibility to disease involved in mechanism crashes of this receptor.
Guerrero, João Vitor Roque. "Zoneamento geoambiental analítico da bacia do Rio Clarinho a partir da técnica de avaliação de terreno, na escala 1:50.000". Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/4380.
Texto completoFinanciadora de Estudos e Projetos
Nowadays, the disorderly way in what happens the human occupation on the physical environment, generates serious environmental, social and economic problems. In order to assuage these problems, many works in the geosciences area concerns with this subject, trying to mitigate these processes, mainly from the territorial planning. The most commonly tool used for territorial planning is the geo-environmental zoning, consisting of, from a prior knowledge of the local physical environment, defining areas of interest, where it may propose limitations and potential for its use and occupation. In this context, this work aimed to generate a chart of analytical geo-environmental zoning of the Rio Clarinho watershed (Brazil) on the scale of 1:50.000. The basin is located in the northeast of the state of São Paulo and presents area of 40.87 km ². The proposed zoning had as a major factor the relief forms of the area, from the technique known as the Land Evaluation. This technique analyzes the forms of relief (landforms), since they are reflections of the natural processes acting on the materials of the earth's surface and, therefore, should reflect the conditions thereof, providing conditions that are proposed and the potential restrictions on use and occupation of the área. As a result, the geoenvironmental zoning of Rio Clarinho chart was generated and pointed to five geoenvironmental units, where proposals for potential and limitations of land use according to the characteristics of the physical environment were presented.
Nos dias atuais, a forma desordenada com que se dá a ocupação humana sobre o meio físico, gera graves problemas ambientais, sociais e econômicos. Com o intuito de se amenizar tais problemas, muitos trabalhos na área de geociências preocupados com o assunto, tentam mitigar estes processos, principalmente a partir do planejamento territorial. A ferramenta mais comumente utilizada para o planejamento territorial é o zoneamento geoambiental, que consiste em a partir de um prévio conhecimento do meio físico local, propor zonas de interesse, aonde se pode propor limitações e potencialidades quanto ao seu uso e ocupação. Neste contexto, o presente trabalho tem como objetivo a geração de uma carta de zoneamento geoambiental analítico da bacia do Rio Clarinho na escala de 1:50.000. A bacia está localizada na região nordeste do Estado de São Paulo e apresenta área de 40,87 km². O zoneamento proposto teve como fator preponderante as formas de relevo presentes no local, na técnica conhecida como Avaliação do Terreno. Esta técnica procura analisar as formas de relevo (landforms), visto que são reflexos dos processos naturais atuantes sobre os materiais da superfície terrestre e, sendo assim, devem refletir as condições dos mesmos, proporcionando condições para que sejam propostas as potencialidades e as restrições ao uso e ocupação do solo na área. Como resultado, foi gerada a carta de zoneamento geoambiental do Rio Clarinho que indicou cinco unidades geoambientais, onde foram apresentadas propostas de potencialidades e limitações de uso do solo de acordo com as respectivas características do meio físico.
Castro, Paulo Henrique Marques de. "Caracterização e mapeamento em escala 1:1000.000 dos solos da ilhas Mutum e Porto Rico, alto Rio Paraná, PR/MS". Universidade Estadual de Londrina. Centro de Ciências Exatas. Programa de Pós-Graduação em Geografia, 2012. http://www.bibliotecadigital.uel.br/document/?code=vtls000174441.
Texto completoIn the relations between society and nature, the soil is fundamentally. Many problems of land use, such as erosion, desertification and infertility, for example, require to be solved, a complete study of the characteristics and origin of soils. Furthermore, soils express many other environmental factors that may be indicative of the natural region. To understand these evidences should be understood all other factors (biological, geological, chemical) that originate the soil and the natural and human events that modify it. The study was conducted with the purpose of mapping and characterization of the soils located at Mutum and Porto Rico islands, at upper Paraná River, near the city Puerto Rico - PR, through interpretations of satellite images, observations of field and laboratory analysis, supported in the relations of interdependence between the components of the site, to the knowledge of its spatially and functioning. For completion of the mapping was used the methodology of mesh system and in addition to the methods for the classification of soils, in the study were also applied techniques of digital remote sensing and geoprocessing. This way was possible the identification, classification and production of soil maps in scale 1:100,000 of Mutum and Porto islands.
Doiron, Annie. "Radiosensitization of a mouse tumor model (RIF-1) by Bromodeoxyuridine (BrdU) using biodegradable polymer implants as a controlled drug delivery system". Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20817.
Texto completoDoiron, Annie. "Radiosensitization of a mouse tumor model (RIF-1) by bromodeoxyuridine (BrdU) using biodegradable polymer implants as a controlled drug delivery system". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0001/MQ44160.pdf.
Texto completoMilstein, Marc. "RIN 1 is a Breast Tumor Suppressor and is also a component of a Breast Tumor Suppressor Locus (B3GNT1-BRMS1-RIN1)". Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1472128811&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Texto completoSchilling, Birte [Verfasser]. "Expression von Transforming growth factor-ß (TGF-ß) 1, 2, 3 und Typ I und II Rezeptor (TGF-ß RI, RII) im Laufe der Entwicklung des menschlichen fetalen Ovars und in Term-Plazenta / Birte Schilling". Greifswald : Universitätsbibliothek Greifswald, 2017. http://d-nb.info/1133574564/34.
Texto completoSilva, Sarai Oliveira. "Fun??o: concep??es e estrat?gias de estudantes da 1? s?rie do ensino m?dio na explora??o de tabelas". Universidade Federal Rural do Rio de Janeiro, 2017. https://tede.ufrrj.br/jspui/handle/jspui/2470.
Texto completoMade available in DSpace on 2018-09-25T18:27:50Z (GMT). No. of bitstreams: 1 2017 - Sarai Oliveira Silva.pdf: 2076016 bytes, checksum: 4439b4d16ef8bd453bd30cbb53b93014 (MD5) Previous issue date: 2017-08-31
This research analyzes answers given by students of the first grade of High School about the elaboration of tables with prototypical examples of functions in a collaborative environment in which the students worked in pairs or groups of no more than three members. The development of this research was based on the Design Experiment on which we established the Theoretical Methodological foundation that also served to establish a framework of teaching and learning of functions for this group. The starting point was the preconceived ideas about the concept of function and about operations on the set of integers, Z. The set of familiar, but unconventional tasks to introduce the theme originated from this central idea, operations in Z. These tasks and the recording of students' written responses are our instrument of data collection and analysis. That is, the students needed to explain or justify the procedures used. The analysis of the answers has revealed that many students come to High School without knowing that the term function is also used to designate a mathematical concept; that the notion of function for them becomes the idea of "making calculations" and that for some students, function is the calculation itself. Based on the considerations above, we believe that the challenge is to think how to intervene in the classroom so that the student is given the opportunity to review his notions and broaden his vision of the concept of function. As a result of this research, we present a didactic guide for teachers containing suggestions of tasks for the study of functions starting from some of the preconceived ideas
Esta pesquisa analisa as respostas dadas por estudantes da 1? s?rie do Ensino M?dio acerca da elabora??o de tabelas, com exemplos protot?picos de fun??es, em um ambiente colaborativo, em que os estudantes trabalhavam em duplas ou em grupos de no m?ximo tr?s integrantes. Para o desenvolvimento desta pesquisa nos apoiamos no Experimento de Design, sobre o qual estabelecemos um quadro de ensino e de aprendizagem de fun??es para esse grupo. O ponto de partida foram ideias preconcebidas sobre o conceito de fun??o e sobre as opera??es no conjunto dos n?meros inteiros, Z. O conjunto de tarefas familiares e n?o convencionais, elaboradas para introdu??o do tema, partiu de opera??es em Z. Estas tarefas e o registro das respostas escritas dos estudantes s?o o nosso instrumento de coleta e an?lise de dados. A an?lise das respostas nos revelou que muitos estudantes chegam ao Ensino M?dio sem conhecimento de que o termo fun??o ? tamb?m usado para designar um conceito matem?tico, que a no??o de fun??o dos estudantes est? associada ? ideia de fazer contas e que para alguns, fun??o ? a pr?pria conta. Como produto resultante desta pesquisa, apresentamos um guia did?tico para o professor, contendo sugest?es de tarefas para o estudo de fun??es, cujo ponto de partida s?o algumas das ideias preconcebidas dos estudantes sobre fun??o
Loureiro, Melina Bezerra. "Avalia??o da presen?a de osteopatia decorrente do diabetes tipo 1 em crian?as e adolescentes do Rio Grande do Norte". Universidade Federal do Rio Grande do Norte, 2008. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13487.
Texto completoConselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico
Diabetes Mellitus (DM) and osteoposes are chronic diseases with great socioeconomic consequences, mainly due to the late complications and consequent disabilities. The potential effects of DM on bone metabolism remain a very conroversial issue, and disagreement exists with regard to the clinical implications of diabetic osteopenia and the mechanism of its ocurrence. The issue is further complicated by the contribuicion of the especific factors, such as duration of disease an dthe degree of metabolic control. The objective of this study is to identify the osteopathy in children and adolescents with DM 1 assisted in the hospital of pediatrics, UFRN, through biochemical markers of bone and mineral metabolism and the extent of bone mineral density. The study was composed by 74 diabetics type 1 patients (DM1) of both gender and aged 6 to 20 yars. Normoglic?mic group was composed by 97 healthy subjects of both genders, which showed the same age range of DM1, in addition to same socioeconomic class. These individuals qere students from the networks of public education in the city of Natal-RN, randomly invited to paticipate in our study. Both groups DM1 and NG were divided intofour subgroups, according to the classification of tanner , T1, T2, T3, T4 for achieving a benchmark. Diabetic individuals showed up with a poor glycemic control. the group DN1 T4 showed an incresead value for total protein, albumin, urea and microalbumiuria are predictors of grumelura injury in DM1 patients . The total alkaline phosphatase activitywas kept on high levels for both groups because they are in a stature development age. For osteocalcin there were decreased levels for groups Dm1 T1, T2, and T3 when compared to their NG (s), suggesting that this decrease could be associated with reduction in the number and/or differentiation os osteoblasts thereby contributing to reducing bone formation. There were no changes in the activity of TRAP. The serum concentrations of total and ionized calcium, phosphorus and magnesium were included within the RV. It was observed that the BMD (Z- SCORE ) has always been within the RV for both groups, despite to DM1 T4. Taking all together, our results support the hypothesis that children and adolescents with type 1 DM present the risk in the long run to suffer a reduction in the bone mass, associated to poor glicemic control and disease duration. It could limit the bone growth and increase the probality of development of osteopenia, as well as other complications surch as retinopathy and renal failure
Diabetes mellitus (DM) a osteoporose s?o doen?as cr?nicas com grandes consequ?ncias socioecon?micas, sobretudo devido ? complica??es tardias e consequente desabilidades. Os efeitos potenciais do DM no metabolismo ?sseo continua a ser uma quest?o controversa, e ainda n?o existe um consenso no que diz respeito ?s implica??es cl?nicas da osteopenia diab?tica e os mecanismos da sua ocorr?ncia. Entretanto, a contribui??o de fatores espec?ficos, tais como a dura??o da doen?a e o grau de controle metab?lico tem sido muito discutidos. O objetivo do presente estudo foi identificar precocemente a osteopatia diab?tica em crian?as e adolescentes com DM 1 atendidos no Hospital de Pediatria da UFRN atrav?s de marcadores bioqu?micos do metabolismo mineral e ?sseo, marcadores da fun??o renal e da medida da densidade mineral ?ssea (DXA; Z-score L1-L4) . O estudo foi constitu?do por uma amostra de 74 pacientes diab?ticos tipo 1 (DM1) de ambos os sexos, com faixa et?ria entre 6 a 20 anos. O grupo normoglic?mico (NG) foi constitu?do por 97 indiv?duos saud?veis, de ambos os sexos, os quais apresentaram a mesma faixa et?ria do DM1, al?m de compreenderem a mesma classe socioecon?mica. Estes indiv?duos eram alunos de escolas da rede p?blica de ensino da cidade de Natal-RN, convidados aleatoriamente a participar do nosso estudo. Tanto o grupo DM1 quanto o NG foram divididos em quatro subgrupos, de acordo com a Classifica??o de Tanner, T1, T2, T3, T4, para viabilizar uma avalia??o comparativa. Os indiv?duos diab?ticos apresentaram um controle glic?mico insatisfat?rio, com valores de glicemia e HbA1C significativamente superiores aos obtidos para os NG. O grupo DM1 T4 apresentou valores aumentados de prote?nas totais, albumina, ur?ia e microalbumin?ria, sugerindo assim um in?cio de comprometimento renal, visto que os valores elevados de microalbumin?ria s?o preditores de les?o glomerular em pacientes DM1. A atividade da fosfatase alcalina total mostrou-se acima dos VR nos grupos DM1 e NG por estes estarem numa faixa et?ria de desenvolvimento estatural. Observa-se uma diminui??o da concentra??o de osteocalcina para os grupos DM1 T1, T2 e T3 quando comparados aos respectivos NG (s), sugerindo que esta diminui??o estaria associada a diminui??o do n?mero e/ou da diferencia??o dos osteoblastos no seu est?gio final de matura??o, contribuindo consequentemente para a redu??o da forma??o ?ssea. N?o foram observadas altera??es na atividade da TRAP. As concentra??es s?ricas de c?lcio total e ionizado, f?sforo e magn?sio estavam compreendidos dentro dos VR, mas os grupos diab?ticos apresentaram hipozincemia e hiperzinc?ria. A DMO (Z-score L1-L4; DXA) esteve sempre dentro dos VR para os grupos estudados, entretanto os grupos DM1 apresentaram sempre valores abaixo do seu respectivo NG, alca?ando uma diferen?a significativa para DM1 T4. O conjunto de resultados obtidos indicam que o baixo controle glic?mico e o tempo de doen?a representaram fatores de risco importantes para o desenvolvimento precoce da osteopenia diab?tica, bem como para o comprometimento renal e sinais de retinopatia.
Dias, Marcelo Maronna. "Análise da soroprevalência do herpesvírus bovino Tipo -1 e do cortisol sérico em diferentes situações de manejo no Rio Grande do Sul". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2006. http://hdl.handle.net/10183/12897.
Texto completoOnce reproductive efficiency is extremely important to a higher productivity in breedings herds, some issues related to this subjet were discussed in four articles. Variation on serum cortisol levels under stressful situations, seroprevalence and dynamics of BHV-1 in different animal categories of beef cattle, pregnancy and abortion rates in commercial herds were the topics studied in the articles. The first study evaluated levels of serum cortisol in animals of different ages, submitted to stressful conditions. Serum cortisol levels were evaluated in 80 and 180 days calves, 1 and two year old heifers, cows ranging from 3 to 8 years , and in bulls of 1, 2 and 3 years, as well as in 3 year males submitted to castration. Blood samples were collected always in the mornings, because hormones like cortisol have cicardian variation. Cortisol levels were determinated by radioimmunoassay. Calves with 80 days of age (22μg/dl±0,25μ/dl) had serum levels statistic different (p<0,001) from all the other categories, except for 180 days calves (P=0,81); 180 days calves( 0,91±0,43 ug/dl)did not differ from the one and two year heifers ( 1,97±1,40 ug/dl and 2,15±1,41 ug/dl, respectively), but had levels statistically different from all the other cows .Heifers in both ages did not differ from cows from 3 to 8 years (3,25±1,89 ug/dl; 2,62±1,27 ug/dl; 2,42±0,93 ud/dl; 3,12±0,69 ug/dl; 2,89±0,41 ug/dl; 2,12±1,22 ug/dl, respectivelly). The bulls at one ( 1,00±0,73 ug/dl), two ( 0,89±0,43 ug/d), and three years old (1,44μg/dl±0,60 ug/dl) had levels statistically different from the 80 days calves and cows. Using Pearson correlation for the females, the value for different ages was r=0,48μg/dl, indicating that serum cortisol enhances 0,48μg/dl for each year of age. In a stressful situation, serum cortisol enhanced five times, ranging from 0,66 μg/dl to 3,36 μg/dl. These results suggest that serum cortisol changes with age, and that this hormone may be useful to demonstrate an stressful situation in beef cattle. The second study aimed to determine physiologic values for serum cortisol in Aberdeen angus calves and to examine whether different weaning schedules would have any effect on such values. Two groups of calves were studied: the first group (n=24) comprised calves submitted to weaning at 90 days of age (early weaning); the second group (n=24) comprised calves submitted to weaning at 210 days of age (traditional weaning).Serum samples were colleted before weaning on day 80 (calves on early weaning) and on day 180 (calves on traditional weaning) to determine basal cortisol levels. To evaluate serum cortisol levels after weaning, blood samples were collected at 24, 48, 72 and 168 hours after weaning, always in the mornings, because of cicardian rhythm. Serum cortisol concentration was measured by radioimmunoassay method. Average daily gain at 90, 210, 365 and 730 days was measures in both groups.Pregnancy rate and losses until parturition were the parameters used to evaluate reproductive performance. Data showed that basal serum cortisol (0,22±0,25 ug/dl) in the early weaning group enhanced to 0,71±0,64 ug/dl in the first 24 hours after weaning, reducing to 0,26±0,30 ug/dl after a week. In the traditional weaning group, basal leves (0,91±0,43 ug/dl) enhanced to1,94±0,89 ug/dl in the first 24 hours, and reduced to 0,99±0,46 ug/dl in a week. This study showed that serum cortisol levels enhanced in the first 24 hours after weaning for both groups, returning to basal levels in a week The traditional weaning group had higher average daily gain (P<0,001).No significant differences were observed for pregnancy rates and losses until parturition. The third study had the objective of estimating antibody presence against BHV- 1 in non vaccinated animals, and evaluate the chance of animal developing infection in several categories in beef cattle herd in Rio Grande do Sul. Sorologic samples of 1516 animals, from a total of 2600, were collected between March 2003 and October 2005. Antibody presence was determinated by seroneutralization. Data was registered and analysed with SPSS 12.0. For comparative analysis, Fisher test was used and odds ratio was determinated with 95% confidence. Antibody presence in the herd was 29,22%, with seropositive animals in all categories. Serum prevalence was of 62,38% in three year old cows. Antibody prevalence inhanced 10 times after first service in the 2 yr heifers, turning from 3,85 % to 38,5%. Antibody presence enhances with age (P<0,001), specially after two years old, and chances of developing infection is higher after breeding season. The fourth study was conducted to evaluate pregnancy rates and losses until parturition (abortion) in farms, that either use a reproductive vaccine or not. In the vaccinated herds, a commercial vaccine was used. Eleven herds were selected, and vaccination was done in four of these herds. A total of 27774 cows were analysed, with 13477 cows routinely vaccinated and the other 14297 cows not vaccinated, for four breeding seasons (2001-2004). The cows were bred AI and exposed to a fertile bull. Data was collected in the farms, and analysed with SPSS 12.0. Total pregnancy rate was 72,7% in the group of vaccinated cows and 70,4% in the non vaccinated. This diference, considering the total 27774 cows was statiscally significant (p<0,001). Abortion rate was 2,38% in the vaccinated vs 2,98% in the non vaccinated group, and was statistically different (p=0,004). These results indicate that vaccinated herds had higher pregnancy rates and less losses by abortion.
Leite, Thaysse Cristina Neiva Ferreira. "Estudo da diversidade genética do HIV-1 em indivíduos soropositivos do Rio de Janeiro com diferentes perfis de progressão para a Aids". reponame:Repositório Institucional da FIOCRUZ, 2012. https://www.arca.fiocruz.br/handle/icict/12018.
Texto completoFundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil
A infecção pelo HIV-1 écaracterizada por um período assintomático extremamente variável entre os indivíduos, o que permitiu a descrição de diferentes perfis de progressão para aids, os quais tem sido associados a características específicas do hospedeiro e/ou do vírus, tal como o subtipo viral. Diante do exposto, como o Rio de Janeiro apresenta uma cocirculação dos subtipos B, F1, recombinantes BF1, além da variante B\201Ddo subtipo B, e háum suporte do governo quanto a realização dos exames de rotina, o que permite o monitoramento dos pacientes HIV-1 positivos, foi possível a caracterização desses quanto ao perfil de progressão para aids. Sendo assim, o presente estudo teve como objetivo avaliar a associação dos subtipos de HIV-1 circulantes no Rio de Janeiro com os distintos perfis de progressão e analisar em um subconjunto de pacientes a mudança do uso do correceptor de entrada utilizado pelo vírus em dois momentos distintos da infecção, antes e após a progressão. A casuística deste estudo foi composta por pacientes HIV-1 positivos que de acordo com seu acompanhamento clínico foram classificados nos distintos perfis de progressão para aids: Progressores Rápidos (PR \2013 progressão em até3 anos), Progressores Intermediários (PI - progridem a partir de 4 anos de infecção) e Não progressores de longo termo (LTNP - mais de 10 anos de infecção sem progressão). A subtipagem das amostras foi realizada a partir da região C2-V3 da gp120 do envelope viral através da análise filogenética pelo método Neighbor-Joining com modelo de substituição de Tamura-Nei, utilizando-se o programa Mega e análise de recombinação pelo método de boostcan do programa Simplot Das 486 amostras classificadas quanto ao seu perfil de progressão, 285 eram PI, 179 PR e 22 LTNP. Destas, 238 foram caracterizadas quanto ao subtipo, sendo 84,5% pertencentes ao subtipo B (destes 28,9% B\201D); 9,2% F1; 3,4% C; 1,3% D; 1,3% BF1 e 0,4% CRF01_AE, esta distribuição concorda com a descrita em estudos prévios com indivíduos do Rio de Janeiro. Dos 92 PR, 54,3% foram caracterizados como B, 22,8% B\201D, 12% F1, 4,3% C, 3,3%D, 1,1% AE e 2,2% BF1. Dos 131 PI, 64,1% pertenciam ao subtipo B, 24,4% B\201D, 7,6% F1, 3,1% C e 0,8% BF1. Dos 15 LTNP, 60% foram B, 33,3% B\201De 6,7% F1. Nossos achados apontam para uma maior porcentagem do subtipo F1 em PR, porém sem significância estatística. Contrapondo-se a outros estudos prévios, não foi verificada associação entre progressão mais lenta e a variante B\201D. As análises de predição do uso do correceptor foram realizadas para 29 indivíduos. A maior parte dos indivíduos caracterizados como subtipos B, B\201De F1 apresentou a form a viral R5 em ambos momentos estudados, no entanto uma alta proporção de vírus X4 (42,9%) foi detectada em indivíduos classificados como B\201D, fato que corrobora a ausência de associação da variante B\201Dcom a progressão mais lenta. No seu conjunto, os resultados deste trabalho reforçam a necessidade de melhor se compreender características virais que possam apontar marcadores de prognóstico para a aids
The HIV - 1 infection is characterized by an asymptomatic period highly variable among the in dividuos leading to a description of different profiles to aids progression , which have been associated with specific characteristics of the host and/or virus, such as viral subtype. Given the above, as Rio de Janeiro city has a a co - circulation of subtype s B, F1, BF1 recombinants in addition to B ” variant of subtype B, and there is a government support for routine exames allowing a good clinical follow up of the HIV - 1 infected patients, it was possible to characterize them in the distinct aids progression profiles. Therefore , this study aimed to evaluate the association between HIV - 1 subtypes circulating in Rio de Janeiro with distinct progression profiles and analyse the shift of the use of the correceptor used by virus in a subset of patients at two diff erents periods of infection, before and after progression. The subjects of this study consisted of HIV - 1 seropositives which were classified according to their profile progression: rapid progressors (RP – less than to 3 years to aids progression), intermed iate progressors (IP – progression after 4 years of infection), and long - term non - progressors (LTNP - more than 10 years of infection without progression). The samples subtyping was performed based on the C2 - V3 region of gp120 of the envelope viral by usi ng Neighbor - Joining phylogenetic inferences with Tamura - Nei substituition model, in Mega program and recombination analysis b y bootscan method i n Simplot. From 486 classified samples, 285 were as IP, 179 as RP and 22 as LTNP. From those, 238 were subtype c haracterized , being 84.5% B (28.9% B"); 9.2% F1, 3.4 % C, 1.3% A, 1.3% and 0.4% CRF01_AE BF1, this distribution goes in agreement with those reported in previous studies with individuals from Rio de Janeiro. From those 92 characterized as RP, 54.3% were cl assified as B, 22.8% B ", 12% F1, 4.3% C 3.3% D 1.1% and 2.2% AE BF1. From those 131 IP, 64.1% classified as B, 24.4% B ” , 7.6% F1, 3.1% C and 0.8% BF1. From those 15 LTNP, 60% were B, 33.3% B ” and 6.7% F1. Our findings depicted a higher percentage of sub - s ubtype F1 in RP, even thought no statistical significance was observed. Distinct to the previous studies, no association between slower progression and variant B" was verified . The coreceptor predition analisys were performed for 29 patients . Most individu als characterized as subtypes B, B ” and F1 presented R5 viral form in both periods, however, a high proportion (42,9%) of X4 virus was detected in individuals classified as B ” , fact consistent with no association among var iant B ” and slower progression. Ta ken together, our results shows the necessity of better understanding the viral characteristics that may reinforce prognostic markers for aids.
Gebran, Raimunda Abou. "Como o rio não cabia no meu mapa, eu resolvi tira-lo : o ensino da geografia nas series iniciais do 1. grau". [s.n.], 1990. http://repositorio.unicamp.br/jspui/handle/REPOSIP/251686.
Texto completoDissertação (mestrado)-Universidade Estadual de Campinas, Faculdade de Educação
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Mestrado
Pingault, Jean-Baptiste. "Les interactions sociales d'enfants de 1 à 4 ans dans les accueils parents-enfants : observations éthologiques dans l'Etat de Rio de Janeiro". Paris 5, 2009. http://www.theses.fr/2009PA05H061.
Texto completoParents-children centres gather in the same place at the same time, partners coming from distinct spheres of socialization: a reference figure (mother or nanny), professionals, unfamiliar adults and peers. In two centres in the state of Rio de Janeiro, social interactions of children from ages 1 to 4 years old were observed. The study focused on the way children differentiate the available partners and how interactions with a type of partner would interfere with interactions with another type of partner. The results are that in such intermediary places, a united interaction mode does not exist. Availability and proximity characterize the interactions with a figure of reference. Interactions with professionals are characterized by availability without proximity and, therefore, do not follow the paradigm of the attachment to the mother. Children do not behaviourally differentiate mothers from nannies. Interactions with peers vary with the spatial organization of the centre but are always characterized by the importance of conflicts. The interactive landscape proves to be complex and makes these centres ideal places of large socialization. Even if the interactions with the different partners are largely distinct and independent, the figure of reference interferes directly in the interactions with the other partners and especially in the control of agonistic behaviours with partners. More than a simple transposition of the way of interacting with the figure of reference to the way of interacting with other partners - as states the social learning theory - the figure of reference has a direct socializing influence on the agonistic interactions with partners
Le, Thi Van Anh. "Recherche de gènes régulés par Crown Root Less 1, un facteur de transcription contrôlant le développement des racines adventives chez le riz". Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20113.
Texto completoIn order to understand better the mechanisms involved in crown root initiation in rice we researched the genes regulated by the CROW ROOT LESS 1 (CRL1) transcription factor that controls their initiation in response to auxin. Several transcript profiling approaches have been used. The first was to look for the genes differentially expressed in crl1 stem bases relatively to the wild type. The second one was to research genes that are CRL1-dependant auxin responsive. The last one consisted to research genes that are up-regulated in crl1 stem bases just after the inducible ectopic expression of CRL1. Among identified genes RT-qPCR experiments allowed to validate 11 CRL1-dependant auxin responsive genes and in situ hybridization experiments ten genes that are specifically expressed in crown root primordia. Most of these genes encodes transcription factors or components of transduction signal patways. Some of them encode chromating modulling factors or auxin transporters. These results give new knowledge about the gene regulatory network acting down-stream CRL1 and about the molecular mechanisms involved in crown root initiation in rice
Rocha, Filho Walter Soares Barbosa. "Racionaliza??o da atua??o extrajudicial das Promotorias de Justi?a do Minist?rio P?blico do Estado do Rio Grande do Norte, de 1? entr?ncia, a partir do uso de indicadores". PROGRAMA DE P?S-GRADUA??O EM GEST?O DE PROCESSOS INSTITUCIONAIS, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/22313.
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Com a busca cada vez mais frequente pela profissionaliza??o dos servi?os p?blicos, em que fatores t?cnicos se sobrepunham aos pol?ticos, o uso de meios e metodologias cient?ficas que comprovem fielmente as reais necessidades de atua??o do Estado, seja em qual esfera for, mostra-se cada vez mais essencial quando se deseja uma sociedade mais justa e igualit?ria. Nesse sentido, o presente projeto pretende racionalizar a atua??o extrajudicial do Minist?rio P?blico do Estado do Rio Grande do Norte por meio do uso de indicadores estat?sticos internos e externos ? Institui??o, os quais se relacionando em programas de Business Inteligence - BI compor?o mapas estat?sticos na forma de gr?ficos e tabelas que ir?o nortear a atua??o do Promotor de Justi?a de 1? entr?ncia destacando as mat?rias de maior relevo da comarca.
With the search increasingly common for the professionalization of public services, where technical factors outweighed the political, the use of media and scientific methods that accurately prove the actual state action needs to be in that sphere is, ever more shows essential when you want a more just and egalitarian society. In this sense, this project seeks to streamline the extrajudicial action of the Public Prosecutor of the Rio Grande do Norte state through the use of internal and external statistical indicators to the institution, which relate in business intelligence programs - BI, comprise statistical maps in the form of graphs and tables that will guide the actions of the 1st indentation of Justice Promoter highlighting matters of greater importance of the region.
Silva, Verônica Santana da. "Influência do Inibidor de RAD51 (RI-1) em Linhagens de Glioblastoma, M059J e M059K, Irradiadas com Raios-X". Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/17/17135/tde-30102014-125051/.
Texto completoGlioblastoma (GBM) is an extremely aggressive and resistant tumor to conventional treatments. The agents used in chemotherapy and radiotherapy are inducers of DNA damage, since they induce single strand breaks (SSBs) and doublestrand breaks (DSBs), which are lethal to cells, but when efficiently repaired by tumor cells make them resistant to antitumoral agents. The main repair pathways for DSBs are the homologous recombination (HR) and non-homologous end joining (NHEJ) pathways. Proteins participating in these processes have been studied as potential molecular targets in cancer therapy. Thus, the strategy employed in this work involved the inhibition of HR repair pathway in cells already committed to the NHEJ pathway, aiming to sensitize irradiated GBM cells. An inhibitor of RAD51 (one of the major HR proteins) was used: 3-chloro-1-(3,4-dichlorophenyl) -4 morpholinylo-1Hpyrrole- 2,5-dione, known as RI-1 (Calbiochem); this compound was tested in GBM cells, M059K and M059J (proficient and deficient for the DNA-PK, respectively) irradiated with X-rays. Various assays were performed to test the inhibitory property of RI-1 in irradiated cells and the combination of the inhibitor with X-irradiation, compared with the untreated control. The results of clonogenic survival showed that 40 M of RI-1 inhibitor exerted a higher inhibitory effect on the ability of cells to divide and form colonies. The RI-1 induced changes in cell cycle kinetics predominantly in the wild-type M059K, at 24 and 72 h. Although M059J did not show significant changes in cell cycle kinetics, these cells showed sensitivity to X-irradiation, as shown by the kinetics of DSB repair (gamma-H2AX foci), which was slower compared to M059K, demonstrating the commitment of the NHEJ repair in M059J (mutant for DNA-PK). The expression of LIG3, PARP-1 and XRCC1 proteins were analyzed at 15 min. and 24 h after irradiation. In the presence of the inhibitor RI-1, LIG 3 expression was increased in M059K cells (15 min. and 24 h) compared to the control group. M059J cells showed a high expression of XRCC1 and PARP-1 only at 15 min., compared to the control. These data indicated that a possible repair of DSBs involving these proteins may have been activated in the first minutes after DNA damage induction. The overall results of this study suggest that RI-1 inhibitor was efficient to influence cellular responses in cells committed to the NHEJ repair, i.e. M059J cell line, leading to the hypothesis that alternative repair pathways may be possibly involved in the resistance of tumor cells.
Lima, Aline Maria Meiguins de. "Mapeamento geotécnico da porção média da bacia do rio Capivari/SP, escala 1:50.000: estudo e caracterização dos aspectos físicos de bacias hidrográficas". Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-19102018-204533/.
Texto completoThis research consists of the geotechnical mapping of the medium Capivari Basin. It was developed according to the adopted methodology at EESC/USP (Escola de Engenharia de São Carlos) compatible with the 1:50.000 scale requirements. This work realized a study about the geotechnical characteristics of the medium Capivari basin and summarizes the physical drainage network studies and the principals geotechnical mapping methodologies. The geographical informalion systems (IDRISI prograrn) was used in the treatment of cartographic products and physical attributes analysis. In this work was produced eleven cartographic products classified in two groups: basic documents and interpretative documents. In general the medium Capivari basin is represented for the Itararé Formation and Serra Geral Formation. The relief, the drainage network and the characteristics of the weathering profiles are the main responsible for the behavior of the superficial flow, of the infiltration potential and of the erosion susceptibility, observed in the area.
Silva, Camila de Souza. "Equil?brio l?quido-vapor do sistema tern?rio etanol + ?gua + 1-etil-3-metil imidaz?lio cloreto: experimental e modelagem termodin?mica". Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/1784.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
Equilibrium data at low and high pressures are important to correct establish conditions of temperature and pressure for separation processes, and to supply the capacity of the solvent, the compositions of the phases and the selectivity of the solvent. The separation of ethanol-water system is of great importance for the industry due to numerous applications of anhydrous ethanol. In all of these applications, ethanol must be free of water and it is necessary to add a third component in the distillation to break the azeotrope. It can be add different solvents, as benzene, hexane, ethyleneglycol, salts, and, in the last years, many studies have been done with ionic liquids. So, the purpose of this work is to use an ionic liquid (1-ethyl-3-methylimidazolium chloride) as the third component, looking for the ethanol dehydration. Because of that, it was done a study to evaluate the effect of this ionic liquid in the liquid-vapor equilibrium behavior between water and ethanol. Experimental data were measured, in triplicate, under normal pressure, in an Othmer-type ebulliometer (300 mL of volume), with two condensers, and made of borosilicate glass. The sample analysis was done in a digital densimeter. The ionic liquid used was recovered from one solution to another, just by adding the required amount to complete each mass fraction. Experimental data was measured with ethanol-water solutions varying the molar concentrations from 0.2 to 0.99, and ionic liquid weight fraction masses from 5 to 60%, to evaluate the behavior of the equilibrium data of the ethanol+water+[emim][Cl] system. The experiments showed that [emim][Cl] with a minimum mass fraction of 20% is a promising solvent because it could ?break? the azeotrope between water and ethanol, and higher mass fraction of ionic liquid were better to enrich the vapor phase in ethanol. NRTL model was used to correlate experimental vapor-liquid equilibrium of the ternary system, estimating the binary parameters, applying the bubble point methodology. The deviations of temperature and vapor phase composition were 0.147 ?C and 0.049, respectively. The relative volatility was greater than 1 for the mass fractions from 20%. The activity coefficients decrease with the increase in the molar concentration of ethanol. Values of the excess Gibbs free energy show a positive deviation for all mass fractions worked, and the experimental data were consistent thermodynamically
Os dados de equil?brio a press?es baixas e elevadas s?o importantes para estabelecer as condi??es corretas de press?o e temperatura para os processos de separa??o e para fornecer a capacidade do solvente, as composi??es das fases e a seletividade do solvente. A separa??o do sistema etanol-?gua ? de grande import?ncia para a ind?stria devido a numerosas aplica??es do etanol anidro. Em todas essas aplica??es, o etanol deve ser livre de ?gua e, para isso, ? necess?rio adicionar um terceiro componente na destila??o para quebrar o aze?tropo. Podem ser adicionados diferentes solventes como o benzeno, hexano, etilenoglicol, sais e, nos ?ltimos anos, tem-se visto muitos estudos com l?quidos i?nicos. Com isso, o objetivo deste trabalho ? a utiliza??o de um l?quido i?nico (1-etil-3-metil imidaz?lio cloreto) como terceiro componente, visando a desidrata??o do etanol, al?m da avalia??o do efeito deste l?quido i?nico no comportamento do equil?brio l?quido-vapor entre a ?gua e o etanol. Os dados experimentais foram medidos, em triplicata, sob press?o normal, em um ebuli?metro tipo Othmer (300 mL de volume), com dois condensadores, feitos de vidro de borosilicato. As determina??es das amostras foram feitas em um dens?metro digital. Os dados foram medidos com solu??es de etanol-?gua em diferentes concentra??es molares (0,2 a 0,95), variando a fra??o m?ssica de l?quido i?nico de 0,05 a 0,60, para avaliar o comportamento dos dados de equil?brio do sistema etanol-?gua-[emim][Cl].Os resultados mostraram que o [emim][Cl] ? um solvente promissor, pois "quebra" o aze?tropo entre a ?gua e etanol a partir de 20% de l?quido i?nico, e a concentra??o de etanol na fase vapor foi maior com o aumento da fra??o m?ssica de LI.O modelo NRTL foi utilizado para correlacionar os dados experimentais de equil?brio, estimando-se os par?metros bin?rios, aplicando-se a metodologia do ponto de bolha. Os desvios em rela??o ? temperatura e a composi??o molar da fase vapor foram 0,147 ?C e 0,049, respectivamente. O l?quido i?nico, recuperado de uma solu??o para outra, passou por uma an?lise de RMN para avaliar se n?o houve altera??o na sua estrutura e, constatou-se que, ap?s ser recuperado, e novamente reutilizado, o solvente n?o perdeu as caracter?sticas originais. As volatilidades relativas foram superiores a 1 para as fra??es m?ssicas a partir de 20%, confirmando a quebra do aze?tropo. A energia livre de Gibbs em excesso apresentou valores que mostram um desvio positivo para todas as fra??es m?ssicas trabalhadas e os dados experimentais foram consistentes termodinamicamente