Made available in DSpace on 2016-04-28T14:57:33Z (GMT). No. of bitstreams: 1 Gislanne Brito Barros.pdf: 2326172 bytes, checksum: 73f275a11542cb2e428f8d2e36262f20 (MD5) Previous issue date: 2010-08-05 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Several diseases caused by different pathogen species can affect the cowpea culture, causing considerable reduction in its productive potential. Among the diseases of large occurrence are the viral illnesses. The viruses caused by the families Comoviridae and Potyviridae, represented by the species Cowpea severe mosaic virus (CPSMV) and Cowpea aphid-borne mosaic virus (CABMV) respectively, are considered of great importance. Considering the efficiency of the genetic resistance in the control of these diseases, this work was carried out aiming at the obtenttion and characterization cowpea plants with resistance to viruses CPSMV and CABMV, in order to obtain new and essentially derived cultivars. Eight crosses were performed using the line TE 97-309G-9 and the cultivar Patativa as parental donors of resistance to CPSMV and CABMV, and cultivars BR3-Tracuateua, BRS-Urubuquara, BRS-Novaera, BRS-Guariba and the landrace Pretinho as recurrent parents. The isolated virus used in the inoculation of F2 and F2RC1 plants were collected in Embrapa Meio-Norte experimental field, and maintained in differential lines. The purity of the isolated was evaluated and confirmed in the Laboratory of Fitovirologia, of Biological Institute, in S?o Paulo. Biparental crosses and triple were made to obtain F1 generations, and then submitted to self pollinated to develop F2 seeds. These F2 plants were inoculated with the mixture of the viruses CPSMV (sorotype I and II) and CABMV. Afterward, the resistant F2 plants were backcrossed with the respective recurrent parent to obtain F1RC1 seeds. The plants of F1RC1 generation were self pollinated to develop F2RC1 seeds. The F2RC1 plants were also inoculated with the same mixture of the viruses, as previously mentioned, and resistant plants were characterized. The following characters were used: number of days to the first flower; pod length; number of seeds per pod; weight of 100 seeds; seed color; and seed yield per plant. The segregation of the F2 generation of biparental crosses and triple and the F2RC1 were analyzed to check the expected frequency of 15 susceptible plants: 1 resistant plant by the ?2 (Qui square) test. All the F2 biparental crosses and F2RC1 backcrosses were adjusted to the expected frequency of 15:1. The characters evaluated in parents and F2RC1 were submitted to statistical analysis. The averages of the resistant plants F2RC1 in each backcross were compared with the average of respective recurrent parent by the t-test and the averages within crosses were compared by the Scott-Knott test. The existence of great genetic variability within and among backcrosses were detected based on all characters. It can be concluded by this study that all backcrosses are promising for obtaining essentially derived cultivars resistant to the viruses CPSMV and CABMV and that the backcrosses who obtained as recurrent parents cultivars BRS-Urubuquara and BRS Novaera are very promising for obtaining new cultivars with multiple resistance to the viruses CPSMV and CABMV. / Diversas doen?as causadas por diferentes esp?cies de pat?genos podem afetar a cultura do feij?o-caupi, promovendo redu??o consider?vel do seu potencial produtivo. Dentre as doen?as de larga ocorr?ncia se destacam as viroses, merecendo maior ?nfase as causadas pelos v?rus das fam?lias Comoviridae e Potyviridae, com as esp?cies Cowpea severe mosaic virus (CPSMV) e Cowpea aphid-borne mosaic virus (CABMV), respectivamente. Considerando a efici?ncia da resist?ncia gen?tica no controle dessas doen?as, esse trabalho foi conduzido com o objetivo de obten??o e caracteriza??o de plantas de feij?o-caupi com resist?ncia aos v?rus CPSMV e CABMV, visando o desenvolvimento de cultivares essencialmente derivadas e de novas cultivares. Foram realizados oito cruzamentos utilizando a linhagem TE 97-309G-9 e a cultivar Patativa como parentais doadores dos genes de resist?ncia aos v?rus CPSMV e CABMV, e as cultivares BR3-Tracuateua, BRSUrubuquara, BRS-Novaera, BRS-Guariba e a cultivar local Pretinho como parentais recorrentes. Os isolados virais usados nas inocula??es das plantas das gera??o F2 e F2RC1 foram coletados no campo experimental da Embrapa Meio-Norte, e mantidos em linhagens diferenciadoras. A pureza dos isolados foi avaliada e confirmada no laborat?rio de Fitovirologia, do Instituto Biol?gico, em S?o Paulo. Cruzamentos biparentais e cruzamento triplo foram realizados para a obten??o da gera??o F1 e submetidos ? autofecunda??o para a obten??o de sementes F2. As plantas da gera??o F2 foram inoculadas com a mistura dos v?rus CPSMV (sorotipos I e II) e CABMV. Em seguida, as plantas F2 resistentes foram retrocruzadas com o respectivo parental recorrente para a obten??o de sementes F1RC1. As plantas da gera??o F1RC1 foram autofecundadas para a obten??o de sementes F2RC1. As plantas F2RC1 foram tamb?m inoculadas com a mistura dos v?rus, como mencionado anteriormente e as resistentes foram caracterizadas. Foram avaliados os seguintes caracteres: n?mero de dias para o in?cio da flora??o; comprimento da vagem; n?mero de gr?os por vagem; peso de cem gr?os; produ??o de gr?os por planta. As segrega??es das gera??es F2 dos cruzamentos biparentais e cruzamento triplo e F2RC1 foram analisadas pelo teste ?2 (Qui-Quadrado) para verificar a freq??ncia esperada de 15 plantas suscet?veis: 1 planta resistente. Todas as F2 dos cruzamentos biparentais e cruzamento triplo e F2RC1 ajustaram-se a freq??ncia esperada de 15:1. Os caracteres avaliados nos parentais e nas gera??es F2RC1 foram submetidos a an?lise estat?stica. As m?dias das plantas F2RC1 resistentes, de cada retrocruzamento, foram comparadas com a m?dia do seu respectivo parental recorrente pelo teste t e as m?dias dos retrocruzamentos foram comparadas pelo teste de Scott-Knott. Foi detectada grande variabilidade gen?tica entre e dentro os retrocruzamentos para todos os caracteres. Pode-se concluir com base nos resultados que todos os retrocruzamentos s?o promissores para obten??o de cultivares essencialmente derivadas resistentes aos v?rus CPSMV e CABMV e que os retrocruzamentos que obtiveram como parentais recorrentes as cultivares BRS-Urubuquara e BRS Novaera s?o muito promissores para a obten??o de novas cultivares com resist?ncia aos v?rus CPSMV e CABMV.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-02-09T19:14:10Z No. of bitstreams: 1 2009 - Evandro Silva Pereira Costa.pdf: 2009437 bytes, checksum: cf64a3e8f7e3e004841a52c65f4c6626 (MD5) / Made available in DSpace on 2017-02-09T19:14:10Z (GMT). No. of bitstreams: 1 2009 - Evandro Silva Pereira Costa.pdf: 2009437 bytes, checksum: cf64a3e8f7e3e004841a52c65f4c6626 (MD5) Previous issue date: 2009-09-21 / CNPq / Defining methods of quantification of tomato late blight, caused by Phytophthora infestans, is important to many researches about strategies of management of the disease. The aim of this present study was to assess and to validate the diagrammatic grading keys - Simplified, James-modified and Broad - and to determinate the possible correlations between the measures of severity and plants? physiological and nutritional state and biomass accumulation. Two simultaneous experiments were carried out: one in greenhouse and the other in field conditions. Two cultivars were studied in greenhouses, Super Sweet and ?Perinha ?gua Branca?, a resistant and a susceptible to late blight genotypes, respectively. The plants were inoculated or not with a sporangia suspension, and submitted to ten evaluations: 1, 2, 3, 4, 6, 7, 9, 10, 17 and 24 days after inoculation. The avaliations were performed in the fifth oldest leaf, and eighth and eleventh leaves, by visual estimation of severity, using three diagrammatic grading keys, Simplified, Broad and James-modified, but also measuring photosynthetic potential (Fv/Fm), by chlorophyll ?a? fluorescence emission. In field conditions, four cultivars were evaluated ? ?Perinha ?gua Branca?, Super Sweet, Santa Clara and Carmen F1. Periodically, late blight severity was quantified using the same three grading keys in leaves of different plant parts, at 51, 62, 74, 94 and 102 days after transplant (DAT). At the day following each severity disease evaluation, one plant was harvested per plot to measure the accumulation of biomass and macronutrients of different plant organs. Fruit yield was determined by summing fruits harvested between 68 and 114 DAT. In greenhouse conditions, the estimative of late blight severity with the three diagrammatic grading keys proved to be adequate to the disease?s quantification, enabling the discrimination between inoculation effects and differences between the cultivars in four and in nine days after inoculation, respectively, which were confirmed by measures of the photosynthetic potential of the leaves. In field conditions, the diagrammatic grading keys Simplified and Broad were more adequate to tomato late blight quantification. Quantifications in the youngest leaves, in the medium and superior third part of the plant, were the most representative of the disease progress and also discriminated the cultivars regarding disease resistance. Negative correlations were observed between severity, estimated with the three grading keys considering the whole plant and its medium third part, and leaf dry mass and leaf concentrations of K and P. The cultivar ?Perinha ?gua Branca? showed the lowest stem and leaf dry mass at the beginning of plant evaluations, and also late fruit yield, but had the higher stem and leaf mass and at the end of the experiment. The cultivar Perinha ?gua Branca and the hybrid Carmen F1 had higher commercial fruit yield. Based in the results, it is recommended the use of Simplified diagrammatic grading key and evaluations in the medium or superior tomato third to quantify the late blight disease. / A defini??o de m?todos de quantifica??o da requeima no tomateiro, causada por Phytophthora infestans, ? importante para v?rias pesquisas sobre estrat?gias de manejo da doen?a. Esse trabalho teve como objetivo aferir e validar as escalas diagram?ticas, Simplificada, James-modificada e Detalhada e determinar as poss?veis correla??es entre as medidas de severidade e o estado fisiol?gico e nutricional da planta e o ac?mulo de biomassa. Realizaram-se dois experimentos simult?neos, um sob condi??es de ambiente protegido e o outro sob condi??es de campo. Em casa de vegeta??o, utilizaram-se duas cultivares de tomate cereja, ?Perinha ?gua Branca? e Super Sweet, suscet?vel e resistente ? requeima, respectivamente. As plantas foram inoculadas ou n?o com suspens?o de espor?ngios de P. infestans e em seguida, avaliadas aos 1, 2, 3, 4, 6, 7, 9, 10, 17 e 24 dias ap?s a inocula??o. As avalia??es foram feitas na quinta, oitava e d?cima primeira folha, contadas do ?pice para a base, usando as tr?s escalas acima citadas e medi??es do potencial fotossint?tico (Fv/Fm) pela emiss?o da clorofila ?a?. No campo, utilizaram-se quatro cultivares, ?Perinha ?gua Branca?, Super Sweet, Santa Clara e Carmen F1. Periodicamente, quantificou-se a severidade da requeima utilizando-se as mesmas escalas acima citadas em folhas de diferentes partes da planta, aos 51, 62, 74, 94 e 102 dias ap?s o transplante (DAT). No dia seguinte a cada avalia??o de severidade, foi coletada uma planta por parcela para mensurar o ac?mulo de biomassa e de macronutrientes nos diferentes ?rg?os da planta. A produ??o de frutos foi determinada pelo somat?rio das colheitas realizadas entre 68 e 114 DAT. Em condi??es de casa de vegeta??o, a estimativa da severidade da requeima com as tr?s escalas se mostrou adequada para quantifica??o da doen?a tendo permitido discriminar efeito de inocula??o e diferen?as entre as cultivares aos quatro e nove dias ap?s a inocula??o, respectivamente, que foram confirmadas pelas medidas do potencial fotossint?tico das folhas. Em condi??es de campo, as escalas Simplificada e Detalhada, foram mais adequadas para a quantifica??o da requeima do tomateiro. Quantifica??es feitas nas folhas mais jovens, no ter?o m?dio e superior da planta, foram as que melhor representaram o progresso da doen?a e discriminaram as cultivares quanto a resist?ncia ? doen?a. Observaram-se correla??es negativas entre a severidade, estimada com as tr?s escalas, considerando a planta inteira e o ter?o m?dio, e a massa seca de folhas e os teores foliares de K e P nas quatro cultivares. A cultivar ?Perinha ?gua Branca? apresentou menor massa seca de caule e de folha no in?cio das avalia??es e produ??o de frutos mais tardia, por?m ao final do ciclo destacou-se pela maior massa seca de caule e de folha. A cultivar ?Perinha ?gua Branca? e o h?brido Carmen F1 apresentaram maior produ??o de frutos comerciais. Com base nos resultados pode-se recomendar o uso da escala simplificada e avalia??es no te?o m?dio ou superior do tomateiro para quantifica??o da requeima.

Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-04-27T11:59:34Z No. of bitstreams: 1 2012 - Cintia Silva Nunes.pdf: 1126230 bytes, checksum: 45346dd33d53277fd3bc88d1d3d22157 (MD5) / Made available in DSpace on 2017-04-27T11:59:34Z (GMT). No. of bitstreams: 1 2012 - Cintia Silva Nunes.pdf: 1126230 bytes, checksum: 45346dd33d53277fd3bc88d1d3d22157 (MD5) Previous issue date: 2012-06-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Heat treatment provides desirable characteristics to the wood such as higher dimensional stability, higher natural durability and, in some cases, changes on original color. However, the treatment can also drastically alter the physical and chemical characteristics of wood surfaces, which affect the adhesion quality and coating application. In this context, the objectives of this study were: (1) to evaluate the effect of heat treatmens on physical properties (density, equilibrium moisture content and mass loss) of Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson and Eucalyptus pellita F. Muell. woods; (2) to determine the effect of heat treatment on color change of both woods; (3) to evaluate the effect of heat treatments on adhesion quality of glued joints by shear strength testing; and (4) to evaluate the effect of physical and chemical modifications following heat treatment on adhesion characteristics. Heat treatments were performed in a laboratorial electric oven at 180 and 200?C. Color measurements were carried out on the CIE-L*a*b* space by using the CM-2600d portable spectrophotometer. Shear strength tests of the glued joints and solid woods were performed according to ASTM D 905 and ASTM D 143 standards, respectively. Three adhesive types were used: resorcinol, resorcinol-tannin 80:20 and resorcinol-tannin 60:40. Density and equilibrium moisture content of both wood species were reduzed by heat treatment. Both woods had mass loss, which increased with the increase of temperature and was more pronounced for Eucalyptus pellita. The original color of the woods changed following heat treatment, mainly to Eucalyptus pellita. The shear strength of solid wood and glued joints of both species was severely affected by heat treatments. The resorcinol-tannin 80:20 adhesive showed the best performance for untreated woods, however, after heat treatment, the adhesive type did not affect the shear strength. Glued joints of heat-treated woods had high percentage of wood failure due to higher porosity and adhesive penetration. The acidity of heat-treated woods affected the shear strength and presented a strong correlation with equilibrium moisture content due to degradation of hemicelluloses. Heat treatments at 180 and 200oC are extremely severe to Corymbia citriodora and Eucalyptus pellita woods / O tratamento de termorretifica??o proporciona ? madeira caracter?sticas desej?veis tais como maior estabilidade dimensional, maior durabilidade natural e, em alguns casos, altera??o da cor original. Entretanto, o tratamento tamb?m pode alterar drasticamente as caracter?sticas f?sicas e qu?micas das superf?cies da madeira, as quais afetam a qualidade de ades?o e a aplica??o de revestimentos. Neste contexto, os objetivos deste estudo foram: (1) avaliar o efeito dos tratamentos nas propriedades f?sicas (densidade, teor de umidade de equil?brio e perda de massa) da madeira de Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson e Eucalyptus pellita F. Muell.; (2) determinar o efeito dos tratamentos termorretificadores na altera??o da cor da madeira de ambas as esp?cies; (3) avaliar o efeito dos tratamentos na qualidade de ades?o de juntas coladas atrav?s de testes de resist?ncia ao cisalhamento; e (4) avaliar o efeito das altera??es f?sicas e qu?micas causadas pela termorretifica??o nas caracter?sticas de ades?o. A termorretifica??o foi realizada em um forno mufla el?trico laboratorial a 180 e 200?C. As medi??es de cor foram realizadas no espa?o CIE-L*a*b* com o aux?lio do espectrofot?metro port?til CM-2600d. Os ensaios de cisalhamento das juntas de madeira colada e das madeiras s?lidas foram realizados segundo as normas ASTM D 905 e ASTM D 143, respectivamente. Foram utilizados tr?s tipos de adesivos: resorcinol, resorcinol-tanino 80:20 e resorcinol-tanino 60:40. A densidade aparente e o teor de umidade de equil?brio das madeiras de ambas as esp?cies foram reduzidos pela termorretifica??o. Ambas as madeiras apresentaram perda de massa, sendo esta crescente com o aumento da temperatura e mais acentuada para a madeira de Eucalyptus pellita. A cor original das madeiras foi alterada pelo tratamento, principalmente para o Eucalyptus pellita. A resist?ncia ao cisalhamento da madeira s?lida e das juntas coladas de ambas as esp?cies foi severamente afetada pelos tratamentos termorretificadores. O adesivo resorcinol-tanino 80:20 apresentou o melhor desempenho para as madeiras n?o termorretificadas de ambas as esp?cies; entretanto, ap?s a termorretifica??o, o tipo de adesivo n?o afetou a resist?ncia ao cisalhamento. As juntas coladas das amostras de madeiras termorretificadas apresentaram uma alta porcentagem de falhas na madeira devido ? maior porosidade e maior penetra??o do adesivo. A acidez das amostras da madeira termorretificada afetou a resist?ncia ao cisalhamento e apresentou uma forte correla??o com o teor de umidade de equil?brio devido ? degrada??o das hemiceluloses. Os tratamentos termorretificadores a 180 e 200?C s?o extremamente severos para as madeiras de Corymbia citriodora e Eucalyptus pellita

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-05-23T19:12:54Z No. of bitstreams: 1 2012 - Francisco L?cio da Silva Beltr?o.pdf: 1689416 bytes, checksum: 76a8c64f4a1c610912e18f6afdec5d8d (MD5) / Made available in DSpace on 2017-05-23T19:12:54Z (GMT). No. of bitstreams: 1 2012 - Francisco L?cio da Silva Beltr?o.pdf: 1689416 bytes, checksum: 76a8c64f4a1c610912e18f6afdec5d8d (MD5) Previous issue date: 2012-08-29 / CAPES / The degradation of the wood occurs because of chemical, physical and biological factors, in the latter are the termites, which due to feed primarily on cellulose, which is a major constituent of the wood. In front of the potential damage of these insects to the timber, it is essential to study their attractiveness and feeding preferences to various wooden species, in order to better understand their habits and so to improve the prevention and control methods. This study aimed to analyze if wood of the five exotic forest species (Corymbia citriodora, Eucalyptus cloeziana, Eucalyptus saligna, Eucalyptus urograndis, and Pinus elliottii) is forage by termites throughout the time in three environments with different anthropic actions in the municipality of Seropedica, RJ; if there is preference of attack to wood of these species in this environmental and time conditions, and if the anthropization level influence the distribution of the termite species. Two areas were inside the campus of the Universidade Federal Rural do Rio de Janeiro (monoculture of eucalypt and fragment of Mata Atlantica), and other in the Fazenda Agroecol?gica do Km 47 (area around the edification). Wooden stakes (2x2x25 cm) were made as test samples, which were buried on the ground at each experimental area, and evaluated at three times of exposition in the field (90, 120 and 150 days after the installation of the stakes), with eight replicates/forest specie/time. The initial weight and the wooden density of each stake were determined before they were set up in the field. To determine the points of termite activity in the areas, baits of cardboard carton were buried on the ground in order to attract the termites. The points where the baits present attack of termites served as central point for installation of the wooden stakes, which were disposed in a radial position, forming a circle of the stakes. After each exposure time the wooden stakes were collected and weighed to determine the feeding preference of the termites based on the consumption rate of the stakes. The obtained results showed the occurrence of three species of termites (a specie per area), an exotic: Coptotermes gestroi (Wasmann) (Rhinotermitidae), which occurs in the area around the edification, and two natives: Heterotermes tenuis (Hagen)(Rhinotermitidae), which was present at the eucalypt plantation, and Nasutitermes cf. itapocuensis (Holmgren) (Termitidae) which occurs in the forest. C. gestroi and H. tenuis showed more attractiveness/frequency of attack to wooden stakes of P. elliottii (83% and 63%, respectively), while N. cf. itapocuensis had highest occurrence/frequency of attack to E. cloeziana (79%). The average consumption rates of the stakes by C. gestroi and H. tenuis among the five forest species were similar. N. cf. itapocuensis showed sinficant feeding preference to E.cloeziana (4.32?1.19g) compared to P. elliottii (0.18?0.10g).It was observed that the low density of the wood influenced the occurrence/frequency of C. gestroi and H. tenuis to P. elliottii, while N. cf. itapocuensis was not influenced by this characteristic of the wood. However, there was no relationship between the feeding preferenceconsumption and the mean density of the wood to C. gestroi and H. tenuis, but N. cf. itapocuensis preferred woods of medium density. / A degrada??o da madeira ocorre devido a fatores qu?micos, f?sicos e/ou biol?gicos, neste ?ltimo se encontram os t?rmitas, por se alimentarem basicamente de celulose, que ? um dos principais constituintes da madeira. Diante do potencial de dano desses insetos ao madeiramento, ? imprescind?vel estudar a atratividade e a prefer?ncia alimentar destes ?s mais variadas esp?cies de madeira, para compreender melhor seus h?bitos e assim aperfei?oar os m?todos de preven??o e controle. Esse estudo objetivou analisar se madeira de cinco esp?cies florestais ex?ticas (Corymbia citriodora, Eucalyptus cloeziana, Eucalyptus saligna, Eucalyptus urograndis, e Pinus elliottii) ? forrageada por t?rmitas ao longo do tempo em tr?s ambientes com diferentes a??es antr?picas no munic?pio de Serop?dica, RJ; se h? prefer?ncia de ataque ?s madeiras dessas esp?cies nessas condi??es ambientais e de tempo, e se o n?vel de antropiza??o influencia a distribui??o das esp?cies de t?rmitas. Duas ?reas estavam dentro do campus da Universidade Federal Rural do Rio de Janeiro (monocultivo de eucalipto e remanescente de Mata Atl?ntica), e outra na Fazenda Agroecol?gica do Km 47 (?rea ao redor de edifica??o). Foram confeccionadas estacas de madeira (2x2x25 cm) que serviram como corpos de prova, as quais foram enterradas no solo em cada ?rea experimental, sendo avaliadas em tr?s ?pocas de exposi??o a campo (90, 120 e 150 dias ap?s a instala??o das estacas), com oito repeti??es/esp?cie florestal/?poca. Foi aferido o peso inicial e a densidade da madeira de cada estaca antes de serem dispostas no campo. Para determinar pontos de atividade term?tica nas ?reas, foram enterradas no solo iscas de rolo de papel?o cartonado para atra??o dos t?rmitas. Os pontos onde as iscas apresentaram ataque de t?rmitas serviram como pontos centrais para a instala??o das estacas de madeira, que assumiram uma posi??o radial, formando um circulo de estacas. Ap?s cada ?poca de exposi??o, as estacas foram retiradas do campo e pesadas para determina??o prefer?ncia alimentar dos t?rmitas com base na taxa de consumo das estacas. Os resultados obtidos revelaram a ocorr?ncia de tr?s esp?cies de t?rmitas (uma esp?cie por ?rea), uma ex?tica: Coptotermes gestroi (Wasmann)(Rhinotermitidae), que ocorreu na ?rea ao redor de edifica??o, e duas nativas: Heterotermes tenuis (Hagen) (Rhinotermitidae), que estava presente no eucaliptal, e Nasutitermes cf. itapocuensis (Holmgren) (Termitidae) que ocorreu na floresta. C. gestroi e H. tenuis apresentaram uma maior atratividade/frequ?ncia de ataque para as estacas de P. elliottii (83%e 63%, respectivamente), enquanto N. cf. itapocuensis apresentou maior ocorr?ncia/frequ?ncia de ataque em E. cloeziana (79%). As taxas m?dias de consumo das estacas por C. gestroi e H. tenuis entre as cinco esp?cies florestais foram semelhantes. N. cf. itapocuensis revelou prefer?ncia alimentar significativa por E. cloeziana (4,32?1,19g) em rela??o a de P. elliottii (0,18?0,10g). Observou-se que a baixa densidade da madeira influenciou a ocorr?ncia/frequ?ncia de ataque de C. gestroi e H. tenuis por P. elliottii, enquanto N. cf. itapocuensis n?o foi influenciado por essa caracter?stica da madeira. Entretanto, n?o houve rela??o entre a prefer?ncia alimentar/consumo e a densidade m?dia da madeira para C. gestroi e H. tenuis, j? N. cf. itapocuensis preferiu madeiras de m?dia densidade.

Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-03T16:25:38Z No. of bitstreams: 1 2016 - Viviane Figueira Marques.pdf: 1883187 bytes, checksum: 9996d5ea41ecd4f93424c808c4d82ba6 (MD5) / Made available in DSpace on 2017-10-03T16:25:38Z (GMT). No. of bitstreams: 1 2016 - Viviane Figueira Marques.pdf: 1883187 bytes, checksum: 9996d5ea41ecd4f93424c808c4d82ba6 (MD5) Previous issue date: 2016-03-02 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Staphylococcus spp. plays an important role in the etiology of bovine mastitis. Staphylococcus aureus is considered the most relevant specie due to the production of virulence factors such as ?slime?, which is required for biofilm formation. This study aimed to detect the phenotypic expression of the biofilm formation in 20 S. aureus isolates from bovine mastitis, to detect and quantify the expression of genes involved in its production and regulation, as well as to detect the phenogenotypic resistance to beta-lactam in order to evaluate the possible relation between biofilm production and antimicrobial resistance. The isolates were characterized by MALDI-TOF and phenogenotypic identification assays. Also they were submitted to the phenotypic tests to evaluate biofilm production and the susceptibility to beta-lactams. Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and Minimum Inhibitory Concentration in the Biofilm (MICB) were determined to three isolates presenting distinct biofilm production. Futherly, a PCR for the detection of ?slime? production genes (icaA and icaD), Bap protein (bap), beta-lactamase (blaZ) and protein altered penicillin-binding (mecA). Also, the Agr system was typified (agr I, agr II, agr III and agr IV) and its regulator (agr RNAIII) was detected. Scanning Electron Microscopy (SEM) was performed to determine the most suitable time interval for biofilm analysis. Real-time PCR (qPCR) was performed at the chosen times to quantify the expression of icaA, icaD and hld genes in the three studied isolates. All 20 isolates were biofilm producers and most presented icaA and icaD genes. Only one isolate presented the bap gene. The agr gene type II presented a prevalence of 70%. The SEM showed gradual changes in bacterial arrangement during the biofilm formation along the phases of the growth curve. The peak was reached at the stationary phase. Transcriptional analysis revealed increased expression of ica genes at 8 h of growth and of hld at 24 h. However, for the N-365 strain the ica expression was of low yield. For this study, the penicillin resistance was related to the production of beta-lactamase otherwise the high MBC detected for cefoxitin may be associated to biofilm protection, evidentiated by the fact that the isolates have MICB values higher than MICs tested for planktonic cells / Staphylococcus spp. tem papel importante na etiologia da mastite bovina. Staphylococcus aureus ? considerada a esp?cie mais relevante devido ? produ??o de fatores de virul?ncia, tais como ?slime?, o que favorece a forma??o do biofilme. O presente trabalho teve por objetivo detectar a express?o fenot?pica da forma??o de biofilme em 20 isolados de S. aureus oriundos de mastite bovina, detectar e quantificar a express?o dos genes envolvidos na sua produ??o e regula??o, al?m de detectar a resist?ncia fenogenot?pica aos beta-lact?micos para avalia??o da poss?vel rela??o da produ??o de biofilme com a resist?ncia antimicrobiana. Os isolados foram caracterizados atrav?s de testes fenogenot?picos e MALDI-TOF, submetidos ?s provas fenot?picas de detec??o da forma??o de biofilme e avalia??o da suscetibilidade aos beta-lact?micos. A Concentra??o Inibit?ria M?nima (CIM), Concentra??o Bactericida M?nima (CBM) e a Concentra??o Inibit?ria M?nima no Biofilme (CIMB) foram determinadas para tr?s isolados selecionados com base na varia??o da intensidade da produ??o de biofilme. Posteriormente, todos os isolados foram submetidos ? t?cnica de PCR para detec??o dos genes de produ??o de ?slime? (icaA e icaD), prote?na Bap (bap), beta-lactamase (blaZ) e prote?na ligante de penicilina alterada (mecA). Al?m de detec??o do sistema regulador Agr (agr RNAIII) e da tipifica??o do sistema Agr (agr I, agr II, agr III e agr IV). Foi realizada Microscopia Eletr?nica de Varredura (MEV) para determinar o intervalo de tempo mais adequado para a an?lise do biofilme. A PCR em tempo real (qPCR) foi realizada nos tempos selecionados para quantificar a express?o dos genes icaA, icaD e hld em tr?s isolados com produ??o variada de biofilme. Todos os isolados foram produtores de biofilme e a maioria apresentou os genes icaA e icaD. Apenas um isolado apresentou o gene bap. O gene agr tipo II mostrou preval?ncia de 70%. A MEV mostrou mudan?as graduais no arranjo bacteriano durante a forma??o de biofilme ao longo das fases da curva de crescimento que atingiu seu pico de forma??o na fase estacion?ria. A an?lise transcricional evidenciou maior express?o dos genes ica no tempo de 8 h de crescimento e hld em 24 h. Contudo, a cepa N-365 mostrou baixa produ??o dos genes ica. Para este estudo, a resist?ncia ? penicilina foi relacionada com a produ??o de beta-lactamase, enquanto a elevada CBM detectada para cefoxitina pode estar associada ? prote??o que o biofilme oferece, epis?dio evidenciado pelo fato dos isolados apresentarem valores de CIMB superiores aos CIMs testados para as c?lulas planct?nicas.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-16T20:26:44Z No. of bitstreams: 1 RamonVictorAlvesRamalho_DISSERT.pdf: 3544431 bytes, checksum: 87ec396d0fd97098e89f51fc29eb2b56 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-18T22:27:19Z (GMT) No. of bitstreams: 1 RamonVictorAlvesRamalho_DISSERT.pdf: 3544431 bytes, checksum: 87ec396d0fd97098e89f51fc29eb2b56 (MD5) / Made available in DSpace on 2016-08-18T22:27:19Z (GMT). No. of bitstreams: 1 RamonVictorAlvesRamalho_DISSERT.pdf: 3544431 bytes, checksum: 87ec396d0fd97098e89f51fc29eb2b56 (MD5) Previous issue date: 2016-02-12 / A inje??o de vapor ? um m?todo de recupera??o de petr?leo realizado injetando vapor diretamente no po?o at? o reservat?rio. O vapor provoca a dilata??o do revestimento, que ap?s a redu??o na temperatura tende a voltar ?s dimens?es iniciais, provocando a forma??o de trincas no cimento e perda de isolamento hidr?ulico. Neste contexto, o L?tex do tipo SBR ? utilizado para melhorar a flexibilidade da matriz do cimento reduzindo as falhas por fadiga. Para evitar estas falhas, os par?metros de resist?ncia mec?nica devem ser rigorosamente ajustados ?s condi??es do po?o. Para o estado fresco, as pastas de cimento devem permanecer fluidas e homog?neas, durante o bombeio, para que seu deslocamento n?o comprometa a janela operacional do po?o. Este trabalho tem como objetivo estudar o comportamento mec?nico de sistemas de pasta de cimento Portland, aditivadas com L?tex SBR, para cimenta??o de po?os de petr?leo sujeitos ? inje??o de vapor. Atrav?s do planejamento fatorial composto central foi estudado o comportamento da resist?ncia ? compress?o API variando a densidade da pasta entre 1,75g/cm? (14,6 lb/Gal) e 1,89 g/cm? (15,8lb/Gal), o tempo de cura entre 4 dias e 28 dias e concentra??o de L?tex SBR entre 0 L/m? e 534,722 L/m? (0 gpc e 4 gpc). Os resultados apontam que o com o aumento da concentra??o do l?tex SBR, dentro os intervalos determinados, ocorreu uma diminui??o significativa da resist?ncia ? compress?o pelo aumento da capacidade de deforma??o el?stica da pasta. A partir dos resultados obtidos ? poss?vel determinar melhores condi??es de formula??o de pastas aplic?veis em opera??es de cimenta??o de po?o de petr?leo sujeito ? inje??o de vapor. / Steam injection is an oil recovery method accomplished by introducing steam directly into the oil well to the reservoir. The steam causes dilation of the casing, which, after reduction in temperature, tends to return to the initial dimensions: causing the formation of cracks in the cement and loss of hydraulic isolation.. In this context, the type of the SBR latex is used to improve the flexibility of the cement matrix by reducing the amount of fatigue failure. To prevent these failures, the mechanical resistance parameters should be carefully adjusted to well conditions. This work aims to study the mechanical behavior of cement slurry systems additivated with SBR latex for cementing oil wells subject to steam injection. Through the central composite factorial design was studied the behavior of the compressive strength by varying the density of the paste between 1.75 g /cm? (14.6 lb/ Gal) and 1.89 g/cm? (15,8lb / Gal), curing time between 4 days and 28 days and concentration of SBR Latex between 0 L / m? and 534.722 L / m? (0 gpc and 4 gpc). The results showed that increasing the concentration of SBR latex, within the given ranges, there was a decreased compression resistance and elastic modulus by increasing the elastic deformability of the slurry. From the results it can determine best slurries formulation conditions in oil well cementing operations subject to steam injection.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-09-06T20:24:13Z No. of bitstreams: 1 ThiagoAndreCidral_DISSERT.pdf: 3578139 bytes, checksum: bcb8c85feab01e028e946691a0776a04 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-09-06T23:31:16Z (GMT) No. of bitstreams: 1 ThiagoAndreCidral_DISSERT.pdf: 3578139 bytes, checksum: bcb8c85feab01e028e946691a0776a04 (MD5) / Made available in DSpace on 2016-09-06T23:31:16Z (GMT). No. of bitstreams: 1 ThiagoAndreCidral_DISSERT.pdf: 3578139 bytes, checksum: bcb8c85feab01e028e946691a0776a04 (MD5) Previous issue date: 2016-01-15 / Os Estafilococos Coagulase Negativos (ECN) s?o microrganismos pertencentes ? microbiota normal da pele e de mucosas dos seres humanos e de animais. A maioria das infec??es causadas por ECN est?o relacionadas ao uso de dispositivos m?dicos invasivos que ao lesionar a integridade da pele servem de base para a forma??o de biofilmes, um importante fator de virul?ncia. Grande parte dos isolados de coagulase negativo s?o provenientes de hemoculturas e pontas de cateter e nos ?ltimos anos vem se tornando um grave problema no que diz respeito ? antibioticoterapia, em virtude do n?mero elevado de cepas multirresistentes descritas. O objetivo deste trabalho foi pesquisar resist?ncia ? linezolida em estafilococos coagulase negativos resistentes ? meticilina isolados de ponta de cateter e hemocultura de hospitais p?blicos e privados da cidade do Natal. Os isolados bacterianos foram coletados a partir de demanda espont?nea em Hospitais P?blicos e Privados. O g?nero Staphylococcus foi confirmado atrav?s dos testes de rotina como colora??o de Gram, prova da catalase da coagulase livre. A identifica??o a n?vel de esp?cie foi realizada atrav?s de testes bioqu?micos convencionais. Algumas amostras tiveram sua identifica??o confirmada pelos sistemas VITEK 2 e MALDI-TOF. O perfil de resist?ncia aos antimicrobianos foi avaliado atrav?s da t?cnica de disco-difus?o (CLSI 2013). A Concentra??o Inibit?ria M?nima para vancomicina e linezolida foi determinada atrav?s do uso de E-test e a presen?a dos genes mecA e cfr foi confirmada pela t?cnica da Rea??o em Cadeia da Polimerase. Algumas amostras tiveram a regi?o V da subunidade 23S do gene do rRNA sequenciadas e analisadas. Posteriormente, as mesmas foram submetidas a t?cnica do PFGE para determina??o do seu pulsotipo. Dos 43 estafilococos coagulase negativos resistentes ? oxacilina inclu?dos neste estudo, 33 (77%) foram identificados como S. epidermidis, 6 (14%) como S. haemolyticus, 3 (7%) como S. homins e 1 (2%) como S. capitis. Os isolados de hemocultura representaram 86% (37) e os de ponta de cateter 14% (6). As amostras apresentaram um perfil de multirresist?ncia, uma vez que 42 dos 43 isolados apresentaram resist?ncia ? 4 ou mais classes de drogas. Todas apresentaram o gene mecA. Nenhuma amostra apresentou resist?ncia ? vancomicina. Tr?s cepas de S. hominis e duas de S. epidermidis, apresentaram resist?ncia ? linezolida com CIM variando entre 6 e 64 ?L/mL. Quando investigadas, apresentaram duas muta??es pontuais (C2190T e G2603T) na regi?o V do gene para rRNA 23S. Nenhuma destas apresentou o gene cfr. O PFGE dos S. hominis revelou a presen?a de um ?nico pulsotipo em 3 hospitais, enquanto n?o foi encontrado semelhan?a gen?tica entre os S. epidermidis. Estes achados destacam a import?ncia da vigil?ncia continuada em rela??o a resist?ncia a linezolida no g?nero Staphylococcus. / Coagulase Negative Staphylococci (CoNS) belong to the normal microbiota of the skin and mucous membranes of humans and animals. The most of the infections caused by CoNS are a serious problem, since an elevated number of multi-drug resistant strains. The objective of this study was to investigate resistance to linezolid in methicillin-resistant coagulase negative staphylococci isolates from hospitals in the city of Natal. Bacterial samples were collected from spontaneous demand from Public and Private Hospitals of the city of Natal-RN. The identification staphylococci of the species were conducted by conventional biochemical. Some Samples had the identification to the species level confirmed by automated methodologies VITEK 2? and VITEK MS?. The resistance profile was evaluated with use of the disk diffusion technique (CLSI, 2013). The MIC to vancomycin and linezolid were determined by using E-test method. The antimicrobial resistance profile was evaluated by disk diffusion technique (CLSI 2013). The Minimum Inhibitory Concentration linezolid and vancomycin were determined by using E-test and the presence of the mecA gene and cfr was confirmed by the technique of Polymerase Chain Reaction. Some samples had the V region of the subunit 23S rRNA gene sequenced and subjected to PFGE technique for determining its pulsotype. Of the 43 coagulase negative staphylococci resistant to methicillin included in this study, 33 (77%) were identified as S. epidermidis, 6 (14%) as S. haemolyticus, 3 (7%) as S. homins and 1 (2%) as S. capitis. The catheter tip isolates accounted for 14% (6) and the blood culture 86% (37). Samples showed an alarming resistance profile, since 98% of the isolates were resistant to four or more class drugs. All were positive for mecA gene. No samples were resistant to vancomycin. Three S. hominis and two S. epidermidis exhibited linezolid resistance with MIC ranging from 6 to 64 ?L/mL. None of the samples had the cfr gene. When investigated, they showed two point mutations each (C2190T and G2603T) in the V region of the 23s rRNA gene. None of them was the cfr gene. The S.hominis of PFGE showed the presence of a single pulsotype in three hospitals, suggesting a clonal spread, while it was not found genetic similarity among S. epidermidis. These findings highlight the importance of continued vigilance of linezolid resistance in the genus Staphylococcus.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-01-04T14:03:51Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ivana_pires_sousa_baracho.pdf: 881653 bytes, checksum: 116255ef5aa789c8ed97b09f4b8417c8 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-01-31T16:57:04Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ivana_pires_sousa_baracho.pdf: 881653 bytes, checksum: 116255ef5aa789c8ed97b09f4b8417c8 (MD5) / Made available in DSpace on 2017-01-31T16:57:04Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) ivana_pires_sousa_baracho.pdf: 881653 bytes, checksum: 116255ef5aa789c8ed97b09f4b8417c8 (MD5) Previous issue date: 2016 / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / Objetivou-se com este trabalho avaliar o efeito da compacta??o do solo e diferentes doses de nitrog?nio no desenvolvimento, produtividade e qualidade de esp?cies forrageiras e nos atributos f?sicos do solo. Foram montados tr?s experimentos independentes em casa de vegeta??o com um delineamento em blocos casualizados, em um esquema fatorial duplo. Os experimentos foram com as tr?s esp?cies forrageiras - Bachiaria ruzizienses, Brachiaria brizantha cv. MG-5 Vit?ria e Panicum maximum cv. momba?a; os tratamentos: quatro Graus de Compacta??o (GC) ? 65%; 75%; 85% e 95% e quatro dose de adubo nitrogenado ? 0; 200; 250 e 300 Kg de N ha-1), com quatro repeti??es. O experimento foi conduzido em vasos em casa de vegeta??o localizada na UFVJM campus JK, em Diamantina-MG. No local de coleta do solo utilizado no experimento, foram coletadas amostras de aproximadamente 5 kg para a realiza??o do ensaio de Proctor normal, determinando-se a Densidade do solo e a Umidade para cada corpo de prova. Uma vez estipulado o GC, conhecendo a Densidade m?xima do solo e o volume do vaso, foi poss?vel calcular a massa de solo a ser colocada dentro dos vasos referente a cada GC. As amostras foram coletadas 90 dias ap?s semeadura, para realiza??o das avalia??es em laborat?rio. As vari?veis analisadas nas plantas foram: produ??o de massa verde (MV) e massa seca (MS) da parte a?rea, altura, volume da raiz, prote?na bruta (PB), fibra em detergente neutro (FDN), fibra em detergente ?cido (FDA) e lignina. Para a realiza??o do ensaio de Resist?ncia do solo ? penetra??o (RP), as amostras indeformadas foram trabalhadas e saturadas por um per?odo de 48 h, em seguida deu-se in?cio ?s leituras de RP. Realizou-se tamb?m a avalia??o de RP em vasos contendo solo compactado com GC de 95%, antes da semeadura; a modelagem foi feita ajustando um modelo exponencial de RP x umidade e foram comparados estatisticamente por um teste de identidade de modelos. Concluiu-se que a MV, MS da parte a?rea, a altura de plantas e o teor de prote?na bruta aumentaram linearmente com a aplica??o de nitrog?nio em todas as forrageiras estudadas. ? medida que se aumentam as doses de nitrog?nio, os teores de FDN e FDA em todas as forrageiras estudadas diminu?ram. Para o volume da raiz, a Brachiaria brizantha cv. MG-5 Vit?ria respondeu linearmente e positivamente ?s crescentes doses de nitrog?nio no solo compactado. Na avalia??o dos atributos f?sicos do solo, o solo cultivado com Brachiaria ruziziensis foi o que apresentou uma maior RP na umidade na capacidade de campo no grau de compacta??o de 95%. As tr?s esp?cies forrageiras t?m capacidade de al?vio da estrutura do solo compactado; por?m, a Brachiaria brizantha cv. MG-5 Vit?ria demonstrou ser a mais eficiente. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2014. / The objective of this study was to evaluate the effect of soil compaction and different doses of nitrogen, in the development, productivity and quality of forage species and in soil physical properties. Three independent experiments were performed in a greenhouse with a randomized block design, in a double factorial. The experiments were with three forage species Bachiaria ruzizienses, Brachiaria brizantha cv. MG-5 Vit?ria and Panicum maximum cv. momba?a: the treatments: Four Degrees of Compaction (GC) ? 65%; 75%; 85% and 95% and four doses of nitrogen fertilizer? 0; 200; 250 e 300 Kg de N ha-1), with four replications. The experiment was conducted in pots in a greenhouse located at UFVJM JK campus, Diamantina-MG. At the site of the soil sampling used in the experiment, samples of 5kg approximately were collected to perform the normal Proctor test, determining soil density and humidity for each specimen. Once stipulated the GC, knowing the maximum density of the soil and the pot volume, it was possible to calculate the mass of soil to be placed in the pots for each GC. The samples were collected 90 days after sowing, to carry out evaluations in the laboratory. The variables analyzed in plants were: green mass production (MV) and dry matter (MS) of the shoot, height, root volume, crude protein (PB), neutral detergent fiber (FDN), acid detergent fiber (FDA) and lignin. To carry out the soil penetration resistance test (RP), the undisturbed soil samples were worked and saturated for a period of 48 h, next we started the RP readings. It was also performed the evaluation of RP in pots containing compacted soil with a 95% GC, before sowing and the modeling was performed by adjusting an exponential model of RP x humidity and they were compared statistically by an identity test of models. It was concluded that the MV, MS of the shoot, height of plants and crude protein content increased linearly with the application of nitrogen in all the studied forages. As it increases the nitrogen levels, the levels of FDN and FDA in all studied forages decreased. For the root volume, the Brachiaria brizantha cv. MG-5 Vit?ria responded linearly and positively to increasing doses of nitrogen in compacted soil. In the evaluation of soil physical properties, the soil cultivated with Brachiaria ruziziensis was the one that presented a higher RP in humidity at field capacity in the degree of compaction of 95%. The three forage species have relief capacity of the compacted soil structure, however, the Brachiaria brizantha cv. MG-5 Vit?ria proved to be the most efficient one.

?rea de concentra??o: Pol?tica, sociedade e cultura. / Submitted by M?rden L?les (marden.inacio@ufvjm.edu.br) on 2016-07-12T01:10:12Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lilian_aparecida_oliveira.pdf: 4173415 bytes, checksum: f95bdec358607f768ed8db76bff7e901 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2016-07-18T12:22:29Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lilian_aparecida_oliveira.pdf: 4173415 bytes, checksum: f95bdec358607f768ed8db76bff7e901 (MD5) / Made available in DSpace on 2016-07-18T12:22:29Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lilian_aparecida_oliveira.pdf: 4173415 bytes, checksum: f95bdec358607f768ed8db76bff7e901 (MD5) Previous issue date: 2015 / RESUMO A pesquisa que resultou na reda??o desta disserta??o buscou identificar a trajet?ria hist?rica do Museu do Diamante na cidade de Diamantina, Minas Gerais, institu?do em 1954 pelo modernista Rodrigo Mello Franco de Andrade, primeiro diretor do Sphan. Por meio de suas cole??es, documenta??o museol?gica e arquivo permanente entre os anos de 1947 a 1957, buscou-se compreender os crit?rios que nortearam as primeiras aquisi??es de seu acervo e a concep??o estabelecida por seus ide?logos. Oportunidade que propiciou a identifica??o e problematiza??o das primeiras cole??es adquiridas e expostas, bem como os sentidos de um museu p?blico cuja origem tem suas ra?zes fundadas em cole??es oriundas de antiqu?rio e cole??es particulares e religiosa institucionalizadas no MD, em um museu p?blico. / Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o em Ci?ncias Humanas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2015. / ABSTRACT The research that resulted in the writing of this thesis was to identify the historical trajectory of Diamond Museum in the city of Diamantina, Minas Gerais, established in 1954 by modernist Rodrigo Mello Franco de Andrade, first director of Sphan. Through its collections, museological documentation and permanent file between the years 1947-1957, he sought to understand the criteria that guided the first acquisitions for its collection and the design established by its ideologues. Opportunity that led to the identification and questioning of the first acquired and exhibited collections, as well as the senses of a public museum whose origin has its roots founded in collections coming from antiquarian and private and religious collections institutionalized in MD, in a public museum.

Made available in DSpace on 2014-12-17T14:20:35Z (GMT). No. of bitstreams: 1 CristianeMN.pdf: 1976506 bytes, checksum: 1936e904553400fc477a0c21592c4e82 (MD5) Previous issue date: 2005-03-21 / This work discusses the impacts of the globalization in the Brazilian northeast culture, specifically in the popular field. The background of theses reflections is the carnival festivities in Recife-PE. In this context, attempts to changes as well as resistance to them maintaining the cultural values and the popular manifestations take a new dimension, presenting different ways of being nordestino. The option for the context of the carnival festivities is due to its significance to the people of this place, particularly as it is a space in which people represent themselves. The work presents a version of the history of carnival in Recife, identifies some manifestations that comprise it, analyzes its changes and shows the process of valuing the local culture in the latest years of the 20th century. The research also reveals how the popular culture assumes a functional and dynamic character where the themes of the popular traditions are being reworked. This process allows not only the survival of the local culture, but also the resistance against the capitalist project to construct a global culture and its uniform character. Even though the carnival festivity has become a mega show, composing a market design, it is still a space to construct differences and see the other. Lastly, for the people of that region, it is a space of fighting for a place in the international panorama / Este trabalho discute os impactos da globaliza??o na cultura nordestina, especificamente no universo da cultura popular. O pano de fundo dessas reflex?es ? os festejos carnavalescos da cidade do Recife-PE, pois nesse contexto se acolhe o novo, mas tamb?m se resiste ?s mudan?as, preserva-se os valores culturais e as manifesta??es populares tomam uma nova dimens?o, consubstanciando-se em novas formas de ser nordestino. A op??o pelo contexto da festa se deu por este ser de grande signific?ncia para o povo nordestino, e primordialmente por ser um espa?o no qual o povo se representa. O trabalho traz um hist?rico da festa de carnaval da cidade do Recife, identifica as manifesta??es que a comp?em, analisa as transforma??es ocorridas na festa e mostra o intenso processo de valoriza??o da cultura local que vem ocorrendo nos ?ltimos anos do s?culo XX. Revela, como em decorr?ncia desse processo, a cultura popular assume um car?ter funcional e din?mico onde as tem?ticas das tradi??es populares est?o sendo reformuladas e reapropriadas pela popula??o, permitindo a cultura popular nordestina n?o s? permanecer, como tamb?m, se impor ao projeto capitalista de cultura global e negar seu car?ter uniformizador. Mesmo que a festa carnavalesca esteja sendo transformada em mega-espet?culo com formato e padroniza??o de produto, deixando de ser um ritual e transformando-se em fonte de renda, alterando profundamente sua "fisionomia", continua sendo, para a gente daquele lugar o espa?o de edifica??o das diferen?as e da percep??o do outro, o espa?o de constitui??o da cidadania e da luta por se fazer respeitar e conquistar um "lugar" no panorama internacional