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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
211

Piramidação de genes de resistência à ferrugem, antracnose e mancha- angular em feijão do tipo carioca / Pyramiding of resistance genes to rust, anthracnose and angular leaf spot in a "carioca-type" common bean

Ragagnin, Vilmar Antonio 03 August 2004 (has links)
Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2017-06-02T17:41:45Z No. of bitstreams: 1 texto completo.pdf: 461198 bytes, checksum: 1983c9ff254d751fb9f67e35fbabb1fc (MD5) / Made available in DSpace on 2017-06-02T17:41:45Z (GMT). No. of bitstreams: 1 texto completo.pdf: 461198 bytes, checksum: 1983c9ff254d751fb9f67e35fbabb1fc (MD5) Previous issue date: 2004-08-03 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / Visando piramidar genes de resistência à ferrugem (Uromyces appendiculatus), antracnose (Colletotrichum lindemuthianum) e mancha-angular (Phaeoisariopsis griseola) em cultivar de feijão do tipo carioca, foram intercruzadas quatro isolinhas de feijoeiro-comum. As isolinhas foram obtidas por meio de retrocruzamento nos quais foi utilizado o cv. Rudá como genitor recorrente. As isolinhas continham os seguintes genes de resistência: linha ON-48-99 - genes Co-10 e Ur-ON provenientes do cultivar Ouro Negro, linha AB-74-1-18 - gene Co-6 proveniente do cultivar AB-136, linha TO- 41-5-6-24 - gene Co-4 proveniente do cultivar TO e linha AND-7-2-9-7-10 - gene Phg- 1 proveniente do cultivar AND 277. Após seleção para homozigose e avaliação das características altura de plantas, número de dias para floração, número de dias para maturação, produtividade de grãos, peso de 100 sementes, número de sementes por vagens, número de vagens por plantas, e da reação de resistência aos patótipos de Uromyces appendiculatus, Colletotrichum lindemuthianum e Phaeoisariopsis griseola, as isolinhas foram intercruzadas duas a duas. Em seguida, as plantas F 1 foram intercruzadas para obter os híbridos duplos. Os marcadores moleculares SCAR-F10 1150a , SCAR-BA8 560a , OPX11 550a , OPY20 830a , OPB03 1800r , OPAZ20 940a e OPH13 490a associados aos respectivos genes de resistência Ur-ON, Co-10, Co-6, Co-4 e Phg-1 proveniente foram utilizados para identificar as plantas contendo todos os genes de interesse as quais foram autofecundadas para obtenção de sementes F 2 . As sementes F 2 foram semeada em casa de vegetação, e as plantas F 2 foram genotipadas utilizando-se de marcadores moleculares ligados aos genes de resistência. A resistência das plantas foi também confirmada por inoculação dos patógenos. Na geração F 3 foi feita nova avaliação com os marcadores moleculares, selecionando-se apenas as plantas que apresentavam todas as marcas. Este procedimento foi também utilizado na geração F 4 . No final deste processo foi obtida uma população constituída de 40 famílias F 4 denominadas genericamente por ́Rudá R`. Paralelamente, foi feito o cruzamento de ́Rudá R` com o cv. Pérola, obtendo-se 30 famílias F 4 . Sementes das famílias F 4:5 foram multiplicadas para realização de experimento a campo. As famílias F 4:6 foram testadas quanto ao seu desempenho agronômico em ensaio em condição de campo e foram selecionadas 4 e 3 linhagens F 4:7 de cada população, respectivamente. Estas famílias foram avaliadas quanto à resistência a diferentes patótipos de U. appendiculatus, C. lindemuthianum e P. griseola. As inoculações feitas em famílias F 4:7 mostraram que as famílias R-127-10-14, R-97-13-5, R-97-13-6, R-127-4-13, P-33-5-1, P-49-8-2 e P-49-2- 2 se comportaram como resistentes a todos os patótipos de U. appendiculatus e C. lindemuthianum, e a cinco dos sete patótipos de P. griseola inoculados. As melhores familias serão avaliadas em uma rede de ensaio de Valor de Cultivo e Uso (VCU) para uma possível recomendação de um novo cultivar de feijão tipo carioca. A seleção de linhagens de feijão com grãos do tipo carioca, resistentes à ferrugem, antracnose e mancha-angular confirmam o grande potencial e a importância do uso da seleção assistida por marcadores moleculares em programas de piramidação de genes de resistência. / The objective of this work was to pyramid resistance genes to rust (Uromyces appendiculatus), anthracnose (Colletotrichum lindemuthianum) and angular leaf spot (Phaeoisariopsis griseola) in the "carioca-type" common bean cultivar Rudá. Four isolines were obtained in four backcross programs and intercrossed. The isolines contained the following resistance genes: isoline ON-48-99 - genes Co-10 and Ur-ON from cultivar Ouro Negro (ON), isoline AB-74-1-18 - gene Co-6 from cultivar AB 136, isoline TO-41-5-6-24 - gene Co-4 from cultivar TO and isoline AND-7-2-9-7-10 - gene Phg-1 from cultivar AND 277. After selection for homozygosis and evaluation of different quantitative, morphologic, and molecular characteristics, and for resistance to rust, anthracnose and angular leaf spot, the isolines were intercrossed. The F 1 plants were intercrossed to obtain the double hybrid. The molecular markers SCAR-F10 1150a , SCAR-BA8 560a , OPY20 830a , OPAZ20 940a , OPH13 490a , OPX11 550a and OPB03 1800r associated to the resistance genes were used to identify the plants containing all the genes of interest which were selfed to obtain the F 2 seeds. The F 2 seeds were sown, and the corresponding plants were selected with molecular markers linked to the resistance genes and resistance was confirmed by inoculation of the pathogens. The selection based on molecular markers was repeated in the F 3 and F 4 generations, only plants containing all the markers were selected. At the end of this process a population of 40 families was obtained and designated ́Rudá R`. In a parallel procedure, ́Rudá R` were crossed with cv. Pérola. Thirty F 4 families ( ́Rudá R` x Pérola) were obtained. Seeds of the F 4:5 families were multiplied and used for agronomic evaluation in preliminary field tests. Four and three lines were selected from populations ́Rudá R` and ́Rudá R` x Pérola, respectively. These lines were tested against different pathotypes of U. appendiculatus, C. lindemuthianum and P. griseola. The inoculations done in F 4:7 lines showed that the lines R-127-10-14, R-97-13-5, R-97-13-6, R-127-4-13, P-33-5-1, P-49- 8-2 and P-49-2-2 were resistant to all pathotypes of U. appendiculatus and C. lindemuthianum, and to five of the seven pathotypes of P. griseola tested. The lines are xstill being analyzed for quantitative characteristics in field trials. The best lines will be tested in an official trial to be released as new varieties of "carioca-type" bean. The selection of bean lines with "carioca-type" grains, resistant to rust, anthracnose and angular leaf spot confirm the power and importance of the use of marker assisted selection in breeding programs aiming to pyramid disease resistance genes.
212

Educação, ações sociais e trabalho na Companhia Usina São João-PB

Souza, Antonio Olavo de 16 November 2006 (has links)
Made available in DSpace on 2015-05-07T15:08:47Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2299011 bytes, checksum: 489bee3ae8b93ed37e46ccbfe4a24fd6 (MD5) Previous issue date: 2006-11-16 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / The present work searches to analyze the relation between Education, Social Actions and Work, through the experiences lived deeply for the agricultural workers of the Usina São João Company, in Paraíba. We look for to study the social reality and the practical ones of education directed toward the work and the citizenship, from a research carried through with worker pupils who are part of the projects of adult and young education and continued education developed in the sugar mill. We objectify in such a way to investigate the importance and the social and economic impact of the education in the life of these people and the main changes occured in the work environment, as in the social sphere. We used as categories of analyses to answer to the objectives of the research and to the problem of inquiry, categories as solidarity, gift, ethics, citizenship, social responsibility, sustainable development, attendance of basic necessities, promotion of the social inclusion and development of politics of generation of income and class actions for the improvement of the communitarian welfare. For in such a way, we used while basement, works and information supplied for authors as Antunes, Frigotto, Kuenzer, Arroyo, Nosella, Pereira, Xiberras, Freire, Brandão, Gadotti, and in the theoretical reflections of Mauss, Caillé, Durkheim, Maslow, Weber and Simmel, among others. We used as methodological procedures the bibliographical research, the analysis and evaluation of the Project of Adult and Young Education implanted in the sugar mill and interviews carried through with worker-pupils of the nocturnal course of adult and young alphabetization. The results had allowed to understand that the access to knowing, which the school education provides to these workers, foments changes in its conditions of work, social and educational experiences, opening different fans of experiences to them in terms of life history, solidarity and sociability. Thus, the education contributes, of some forms, in the search of the citizenship and transformation, being capable to promote the social inclusion with chances of work and income for people without background and perspectives of future. / O presente trabalho busca analisar a relação entre Educação, Ações Sociais e Trabalho, através das experiências vivenciadas pelos trabalhadores rurais da Companhia Usina São João, na Paraíba. Procuramos estudar a realidade social e as práticas de educação voltadas para o trabalho e para a cidadania, a partir de uma pesquisa realizada com alunos trabalhadores que fazem parte dos projetos de educação de jovens e adultos e educação continuada desenvolvidos na usina. Objetivamos investigar a importância e o impacto social e econômico da educação na vida dessas pessoas e as principais mudanças ocorridas tanto no ambiente de trabalho, como na esfera social. Utilizamos como categorias de análises, para responder aos objetivos da pesquisa e ao problema de investigação, categorias como solidariedade, dádiva, ética, cidadania, responsabilidade social, desenvolvimento sustentável, atendimento de necessidades básicas, promoção da inclusão social e desenvolvimento de políticas de geração de renda e ações coletivas para a melhoria do bem estar comunitário. Para tanto, aportamos enquanto embasamento nos trabalhos e informações fornecidos por autores como Antunes, Frigotto, Kuenzer, Arroyo, Nosella, Pereira, Xiberras, Freire, Brandão, Gadotti, e nas reflexões teóricas de Mauss, Caillé, Durkheim, Maslow, Weber e Simmel, entre outros. Utilizamos como procedimentos metodológicos a pesquisa bibliográfica, a análise e avaliação do Projeto de Educação de Jovens e Adultos implantado na usina e entrevistas realizadas com trabalhadores-educandos do curso noturno de alfabetização de jovens e adultos. Os resultados permitiram entender que o acesso ao saber, que a educação escolar proporciona a estes trabalhadores, fomenta mudanças em suas condições de trabalho, vivências sociais e educacionais, abrindo-lhes diferentes leques experienciais em termos de história de vida, solidariedade e sociabilidade. Assim, a educação contribui, de várias formas, na busca da cidadania e transformação, sendo capaz de promover a inclusão social com oportunidades de trabalho e renda para pessoas sem escolaridade e sem perspectivas de futuro.
213

Rela??es entre mecanismos de coordena??o e controle com desempenho organizacional: um estudo nas institui??es p?blicas de ensino m?dio de Natal / Relationship between coordination and control forms with organizational performance: a study in public high schools in Natal

Damore, Ticiano Maciel 19 May 2006 (has links)
Made available in DSpace on 2014-12-17T13:53:31Z (GMT). No. of bitstreams: 1 TicianoMD .pdf: 371454 bytes, checksum: d72d57e765dc5dfe73a2b698be1bcec8 (MD5) Previous issue date: 2006-05-19 / This research aimed at relating coordination and control forms to organizational performance. The multicase study was applied in two public high schools: Centro Federal de Educa??o Tecnol?gica do Rio Grande do Norte and Floriano Cavalcanti. In order to accomplish these objectives, it was developed a qualitative analysis and considered coordination and control forms of several authors. Also was considered Sander?s (1984) model of organizational performance. The mentioned model considers two criteria to analyze organizational performance: one instrumental (efficiency and efficacy) and other substantive (effectiveness e relevance). The research attempts to show the importance of balancing these criteria in a way that effectiveness and relevance becomes more important at schools. It was proven that the use of bureaucratic coordination forms has the power to influence the evaluation on the instrumental technique. At the same time, it was observed that the use of mechanisms based on the autonomy of the school is related to efficiency and efficacy. The object of this research can be considered successful / A presente pesquisa teve por objetivo estudar a rela??o entre mecanismos de coordena??o e controle com o desempenho organizacional, sendo um estudo multicaso aplicado em duas institui??es p?blicas de ensino m?dio em Natal, o Centro Federal de Educa??o Tecnol?gica do Rio Grande do Norte e o col?gio Floriano Cavalcanti. Para tanto, foi feita uma an?lise qualitativa e foram analisados mecanismos de coordena??o e controle citados por diversos autores, assim como foi utilizado o modelo de desempenho de Sander (1984) que divide o desempenho organizacional em crit?rios instrumentais (efici?ncia e efic?cia) e substantivos (efetividade e relev?ncia). Existiu a preocupa??o em explicitar a import?ncia de se balancear tais crit?rios, de forma que na escola, os segundos se sobressaiam sobre os primeiros. Do exame dos dados constatou-se que a utiliza??o de mecanismos de coordena??o mais burocr?ticos influencia na avalia??o dos crit?rios instrumentais, assim como percebeu-se que a utiliza??o de mecanismos que primem pela autonomia da escola e de seu quadro tem rela??o com os crit?rios substantivos. Considera-se que os objetivos da pesquisa foram plenamente atendidos
214

Barracas de Praia, praia de barracas: configura??o, tipo e usos na praia do futuro, Fortaleza CE / Beach Huts, Beach of Huts: Configuration, type and uses in Praia do Futuro, Fortaleza-CE

Donegan, Lucy 06 May 2011 (has links)
Made available in DSpace on 2014-12-17T13:57:04Z (GMT). No. of bitstreams: 1 LucyD_DISSERT.pdf: 5079498 bytes, checksum: dbdbf5a8b17a115bd892d113cfa4f9c4 (MD5) Previous issue date: 2011-05-06 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The purpose of this dissertation is to analyse the importance of the huts of Praia do Futuro to their users and to the city of Fortaleza in Cear? through the comprehension of relations between morphological categories - in urban and edified contexts - of the establishments and their use patterns. This place is one of the main recreation and leisure areas of the city, formed by six kilometres of waterfront, corresponding to a differentiated area through the coast. This space has beach huts with varied profiles: while some more simple huts persist, great complexes are being developed, building even water parks on the beach area. This study analyses relations between:i) spatial configuration (in geometric and mainly topological terms) based on the Social Logic of Space; ii) edified typology (analysing capacity, landscap treatment and program of the huts); and iii) use and environmental perception of the beach by its frequenters. There are consistent relations between the type of hut and their localization in the urban grid, of which were identified groups with different patterns: segregated (north, central and south) and integrated (north: more integrated. and south: less integrated). Such relations also reflect, in varied patterns of use and environmental perception. In spite of their strong economy, the beach huts find themselves in a fragile legal situation because they occupy the beach area, so that this study may come to assist the decision-making for the future of the region. For a sustainable development of the area by those responsible and managers it is necessary to evaluate the cultural importance of the huts at Praia do Futuro, understanding their occupation and uses. / O objetivo dessa disserta??o ? analisar a import?ncia das barracas da Praia do Futuro para os usu?rios e para a cidade de Fortaleza no Cear? por meio da compreens?o de rela??es entre categorias morfol?gicas no contexto urbano e edil?cio dos estabelecimentos e seus padr?es de uso. O local ? uma das principais ?reas de recrea??o e lazer da cidade, formado por seis quil?metros de orla, que corresponde a uma ?rea especializada ao longo da costa. Neste espa?o existem barracas de praia com perfis variados: enquanto algumas mais simples persistem, grandes complexos v?o se desenvolvendo, chegando a construir parques aqu?ticos em faixa de praia. O estudo entende rela??es entre: i) configura??o do espa?o (em termos geom?tricos e, principalmente topol?gicos) analisado com base na L?gica Social do Espa?o; ii) tipologia edil?cia (an?lise de porte, tratamento paisag?stico e programa das barracas); e iii) uso e percep??o ambiental da praia por seus frequentadores. Verifica-se haver rela??es consistentes entre o tipo da barraca e a sua localiza??o na malha urbana, dos quais foram identificados grupos com diferentes padr?es: segregadas (norte, central e sul) e integradas (norte: mais integradas, e sul: menos integradas). Tais rela??es tamb?m repercutem, em variados padr?es de uso e percep??o ambiental. Apesar da sua for?a econ?mica as barracas se encontram em fr?gil situa??o jur?dica por ocuparem a faixa de praia, de modo que o estudo realizado pode vir a assessorar a tomada de decis?es para o futuro da ?rea. Para o desenvolvimento sustent?vel da ?rea por parte dos respons?veis e gestores ? necess?rio avaliar a import?ncia cultural das barracas da Praia do Futuro, entendendo sua ocupa??o e usos
215

Natal qual ? a sua cara?: an?lise do perfil edil?cio da avenida Eng. Roberto Freire (Natal/RN) ? luz da acessibilidade

Nascimento, Rodrigo Costa do 27 October 2011 (has links)
Made available in DSpace on 2014-12-17T13:57:05Z (GMT). No. of bitstreams: 1 RodrigoCN_DISSERT_Parte 1.pdf: 2967594 bytes, checksum: ce42768f99a0d8a486d1fbac1a52af00 (MD5) Previous issue date: 2011-10-27 / This study focuses on the building ensemble of Avenida Roberto Freire, a main road in Natal, Brazil, as a material expression of the confluence of various factors among which the following may be emphasized: high level of accessibility due to urban spatial re-structuring and the growth of the real estate market, in view of the increasing number of consumers, who arrived in Natal within the last decades. The intense urban modification process that has been going on in Natal since at least the 1980s, has engendered the formation of long axial lines which express the expansion dynamics and some of the forces subjacent to it. Avenida Roberto Freire has been an iconic example of an urban thoroughfare where architecture becomes primarily a communication support that can be perceived by fast moving passers-by, what brings it close to the venturian concept of strip (Venturi at al, 1972). The building types that line the road not only respond to the dynamics in process but also contribute to intensify it, as they house a variety of uses which attract people and generate more movement. The dynamics is further strengthened by the action of the real estate business which benefits from the increase of highly accessible locations, and from the private and public investments and incentives to tourism that aim to insert this city into the globalized world. Although the intention of reconstituting part of the history of density increase on this avenue in a diachronical perspective was attempted within the limits of the available references and documentation, the central contribution of this study is to understand the relations between topological accessibility and the typological nature of the building ensemble. By observing the synchronic morphological frame resulting from the spatial configuration analysis pertinent to this avenue (cf. Hillier and Hanson,1984) and the inventory and classification of the building ensemble there existing, this study aims to understand how architecture responds to accessibility in view of the real estate pressure, boosted by a cosmopolitanizing process brought about by the continuous flow of foreign and Brazilian arrivals as visitors, temporary or permanent residents / Este estudo aborda o perfil edil?cio da avenida Engenheiro Roberto Freire, como express?o material da conflu?ncia de fatores dentre os quais se destacam o alto grau de acessibilidade como conseq??ncia da reestrutura??o espacial urbana, e a amplia??o do mercado imobili?rio em face da presen?a crescente de consumidores que t?m chegado a Natal nas ?ltimas d?cadas. O intenso processo de remodela??o urbana por que vem passando Natal desde, pelo menos, a d?cada de 1980 tem engendrado a forma??o de longos eixos vi?rios que expressam exemplarmente essa din?mica e algumas das for?as subjacentes a ela. A avenida tem sido um dos exemplos ic?nicos de eixos vi?rios nos quais a arquitetura torna-se, primordialmente, suporte de comunica??o capaz de ser percebida por passantes em r?pido movimento, aspecto que a faz aproximar-se do conceito venturiano de strip (Venturi et al, 1972). Os tipos edil?cios que ali abrigam usos diversificados n?o s? respondem ? din?mica em curso, mas tamb?m contribuem para intensific?-la e realiment?-la, na medida em que atraem pessoas e geram mais movimento. Some-se a isso a atua??o do setor imobili?rio que se beneficia com a amplia??o de localiza??es dotadas de alta acessibilidade, e com incentivos p?blicos e privados ao turismo, visando inserir a cidade no mundo globalizado. Embora se tenha tido a inten??o de reconstituir parte da hist?ria do adensamento da avenida em perspectiva diacr?nica, a contribui??o central desse estudo ? entender rela??es entre acessibilidade topol?gica e a natureza tipol?gica do acervo edil?cio. Mediante a leitura de um quadro morfol?gico sincr?nico resultante da an?lise da configura??o espacial que cont?m a avenida (cf. Hillier e Hanson, 1984), e do invent?rio e classifica??o do acervo edil?cio que l? est?, este estudo objetiva compreender como a arquitetura responde ? acessibilidade vis-?-vis o desenvolvimento do mercado imobili?rio, impulsionado por um processo de cosmopolitismo que tem ocorrido pela cont?nua chegada de visitantes e moradores tempor?rios ou permanentes, nacionais e estrangeiros
216

Efeito de um extrato de Artem?sia Vulgaris L. marca??o in vitro de constituintes sangu?neos com tecn?cio-99m em ratos wistar / Efeito de um extrato de Artem?sia Vulgaris L. marca??o in vitro de constituintes sangu?neos com tecn?cio-99m em ratos wistar

Terra, Danielle Amorim 11 June 2008 (has links)
Made available in DSpace on 2014-12-17T14:13:38Z (GMT). No. of bitstreams: 1 DanielleAT.pdf: 281978 bytes, checksum: c61d07a033e83fa024963234eef23f5d (MD5) Previous issue date: 2008-06-11 / Artemisia vulgaris L..is used in folk medicine and in Traditional Chinese Medicine (TCM). This medicinal plant has been utilized as anticonvulsive, analgesic, antispasmodic effect, rheumatic pains, menstrual dyspepsia, asthenia, epilepsy, hepatitis, fevers, anemia and to expel parasites. In nuclear medicine, blood constituents are labeled with technetium-99m (99mTc) and used as radiopharmaceuticals (radiobiocomplexes). Authors have been described that synthetic and/or natural drugs could modify the labeling of blood constituents with 99mTc. The aim of this work was to evaluate the effects of an aqueous extract of Artemisia vulgaris L. on the labeling of blood constituents with 99mTc. Blood samples withdrawn of Wistar rats were incubated with Artemisia vulgaris L, stannous chloride and 99mTc, as pertechnetate ion. Aliquots of plasma (P) and blood cells (BC) were isolated. Aliquots of P and BC were also precipitated with trichloroacetic acid and soluble (SF) and insoluble (IF) fractions were separated. The radioactivity in each fraction was counted and the percentages of radioactivity (%ATI) were calculated. Artemisia vulgaris L. extract decreased significantly (p<0.05) the %ATI on BC and on IF-BC. The analysis of the results indicates that the extract could have substances that could interfere on the transport of stannous through the erythrocyte membrane altering the labeling of blood cells with 99mTc. Working in this study was a multidisciplinary group, with Phisical therapists, Biomedicals, Physicals, Pharmacists, Biologists, Statistics and Physicians. / Artemisia vulgaris L. ? usada na medicina tradicional como anticonvulsivante, analg?sico, antiespasm?dico, indicada para dores reum?ticas, dispepsia menstrual, astenia, epilepsia, hepatite, febre, anemia e para expelir parasita. Na medicina nuclear, constituintes do sangue s?o marcados com tecn?cio-99m (99mTc) e usados em procedimentos cl?nicos como radibiocomplexos. Estudos t?m demonstrado que drogas sint?ticas ou naturais podem modificar a marca??o dos constituintes sangu?neos com 99mTc. O presente estudo teve como objetivo avaliar os efeitos de um extrato de Artemisia vulgaris L. na marca??o dos constituintes sangu?neos com 99mTc. Amostras de sangue foram incubadas com o extrato vegetal, cloreto estanoso e 99mTc na forma de pertecnetato de s?dio. Plasma e c?lulas sang??neas foram isolados por centrifuga??o. Al?quotas de plasma e c?lulas sang??neas foram tamb?m precipitadas com ?cido tricloroac?tico para isolamento de fra??es sol?vel e insol?vel. Em cada fra??o a radioatividade foi contada e as porcentagens de radioatividade (%ATI) calculadas. O extrato de Artemisia vulgaris L diminuiu significantemente (p<0,05) a %ATI nas c?lulas sangu?neas e nas prote?nas celulares. A an?lise dos resultados indica que o extrato de Artemisia vulgaris L apresentaria subst?ncias que poderiam interferir no transporte de ?ons estanoso e/ou pertecnetato atrav?s da membrana do eritr?cito alterando a marca??o das c?lulas sangu?neas com 99mTc. A realiza??o deste trabalho envolveu uma equipe multidisciplinar, incluindo fisioterapeutas, biom?dicos, f?sicos, farmac?uticos, bi?logos, estat?sticos e m?dicos
217

Cinema ao vivo e experiências audiovisuais em tempo real / -

Jair Sanches Molina Júnior 15 September 2017 (has links)
Refletir sobre as experiências com imagens e sons em tempo real é pensar em uma ampla gama de possibilidades e experiências pela humanidade, desde os tempos mais remotos. Pelo fato dessas experiências audiovisuais em tempo real serem numerosas no tempo e no espaço, e já amplamente citada em diferentes estudos, esta apresentação tem por objetivo realizar um recorte mais restrito às experiências audiovisuais em tempo real no campo cinematográfico contemporâneo: uma arte, meio e processo em expansão que culmina na existência de um fenômeno semiótico, realizado principalmente através de modos experimentais com a presença do(s) autor(es) concebendo a experiência audiovisual, conjuntamente ao aparato tecnológico e ao público, todos participantes da criação e exibição da obra audiovisual no mesmo tempo em que ela ocorre, em transmissão direta para a tela de cinema, monitores, telas digitais ou espaços arquitetônicos. Com base em obras audiovisuais realizadas entre 2007 a 2017 desenvolveremos uma reflexão e análise das poéticas e técnicas das experiências audiovisuais em tempo real, de maneira a compreender com um olhar mais atento as possibilidades criativas e contribuir com a reflexão sobre estes formatos do audiovisual contemporâneo, cujos meios e processos estão em contínua expansão de suas fronteiras. Em estética do cinema, esta pesquisa segue em continuidade aos estudos e práticas do cinema experimental e em sua vértice ao cinema expandido. / Reflecting about real-time imagery and sounds experiences is thinking about a wide range of possibilities and experiences for humanity, from the earliest times. Because the real-time audiovisual experiences are numerous in time and space, and already widely quoted in different studies, this presentation aims to make a more restricted cut-off to real-time audiovisual experiences in the contemporary cinematographic field: an art, medium and an expanding process that culminates in the existence of a semiotic phenomenon, performed mainly through experimental modes with the presence of the author(s) directing the audiovisual experience in real-time, together with the technological apparatus, the cast, and the public, all participants in the creation and exhibition of the audiovisual work at the same time as it occurs, in direct transmission to the cinema screen, monitors, digital screens or architectural spaces. Based on audiovisual works carried out between 2007 and 2017 we will develop a reflection and analysis of the poetics and techniques of audiovisual experiences in real-time, in order to understand with a closer look the creatives possibilities in live cinema and contribute with reflection on these forms of the contemporary audiovisual, whose means and processes are in continuous expansion of its borders. In aesthetics of the cinema, this research follows in continuity to the studies and practices of the experimental cinema, and in its vertex to the expanded cinema.
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Evaluation of major clay deposits for potential industrial utilization in Vhembe District Municipality, Limpopo Province of South Africa

Akintola, George Oluwole 18 May 2018 (has links)
MESMEG / Department of Mining and Environmental Geology / Vhembe District has several clay deposits which are traditionally use for clay products such as burnt bricks without taking into account the chemical and mineralogical characteristics of clay being used. The ever-increasing market demand for these clay products cannot be met with the traditional method of clay utilization due to the paucity of scientific information on properties of the clay in the area. Consequently, there is a need to gain better understanding of the characteristics of the clay in Vhembe District and to establish the suitability of the variety of clay for different purposes. The current study was undertaken to better understand the compositional relationship between the clay deposits and surrounding rocks present in the study area. It further aimed at characterizing the clay deposits on the basis of chemical, mineralogy, physical, mechanical, thermal and micro structural properties with a view of evaluating the clays for possible industrial use. A total of thirty-nine clay and rock samples were collected from thirteen different locations across the Vhembe District. Thirteen representative samples from each location were obtained after thorough mixing until homogenization was attained and then quartered for subsequent analyses. The mineralogical and chemical characteristics of the clay and rock samples were determined using XRD and XRF respectively. Thin-sections of the rock samples were prepared and examined under petrographic microscope to better understand the mineral assemblages present in the rocks. The thermal and micro structural properties of the clays were determined using DTA-TGA and SEM analyses and the physical properties which include colour, cation exchange capacity (CEC) and soil pH were assessed. The particle distribution and Atterberg limits tests of the clay samples were also conducted in order to establish their mechanical properties. The petrographic results showed that the clay deposits exhibited an intense weathering and sedimentation processes which incorporated detrital minerals from the surrounding rock units. The rock units which include basalt, granodiorite, gneiss and quartzofeldspathic gneiss were found to be differentiated from subalkaline and/or tholeiitic magmatic composition. Although the value of SiO2 content in rock samples was higher when compared with clay samples, it indicated an ongoing desilicication and allitization processes. The high values of chemical index of alteration (CIA), low values of K/Cs (<6200), Ce* normalized value and higher values of LILE enrichment in the clay deposits indicated oxidizing environments during period of deposition. v The mineralogical composition of the studied clayey deposits showed that smectite (8.25 - 29.32%), kaolinite (14.91 - 59.26%) and chlorite (5.94 -16.54%) were present as clay minerals although associated with other non-clay minerals such quartz, plagioclase, talc and geothite. The chemical composition results revealed high silica and alumina content in most studied clay samples. Their fluxing oxides which include K2O, Na2O, CaO, and MgO, varied slightly from 0.06% to 1.78% in abundance while the Fe2O3 and TiO2 contents in most samples averages at 9.2% and 1.3% respectively. The plasticity index of the studied deposits ranged from 9.50 to 62.00% while liquid limit ranged from 31.34 to 73.62%. The microanalysis using SEM indicated that the microstructure framework of most studied clay exhibited a porous skeleton structure owing to numerous tiny voids. The composite results of SEM and CEC analyses suggested their possible application in water filter and chemical fertilizer industries since they provided passage for water and soil cations transmission. The particle size distribution demonstrated that the studied soils have clayey silt texture with wide range coverage of the well graded and sorted particle sizes. Compressibility and plasticity properties were found to be high in Mukondeni, Mashamba-1, Mashamba-2 and Mashamba-3 clay samples. The thermal behavior of Mukondeni, Mashamba-1, Mashamba-2 and Mashamba-3 samples showed relatively high shrinkage (>9%). The high shrinkage percentage suggests the preponderance of smectite minerals. Other samples which are rich in kaolinite and chlorite minerals exhibited low shrinkage (<2%). The drying trends of the studied clay suggest their suitability for fast drying processes like soft and hard refractoriness, sanitary wares and ceramics. Empirical assessment of most studied clay showed their suitability for pottery-making and manufacturing of roofing tiles and masonry bricks. / NRF
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[pt] CUMULATIVIDADE E SINERGIA: UMA ABORDAGEM ESPACIAL INTEGRADA PARA AVALIAÇÃO DE IMPACTOS SOCIOAMBIENTAIS NA BAÍA DE SEPETIBA, RJ / [en] CUMULATIVITY AND SYNERGISM: AN INTEGRATE SPACIAL APPROACH TO SOCIAL AND ENVIRONMENT IMPACT ASSESSMENT IN SEPETIBA BAY, RJ

ANDRESSA DE OLIVEIRA SPATA 25 October 2021 (has links)
[pt] A Avaliação de Impactos Cumulativos (AIC) ainda é um instrumento pouco difundido no Brasil, apesar de a identificação de processos de cumulatividade e sinergia ser uma exigência do Conselho Nacional de Meio Ambiente (CONAMA) no escopo dos Estudos de Impacto para fins de licenciamento ambiental. Em partes, isso se deve a dificuldades técnicas e metodológicas e, em partes, à indisponibilidade de informações públicas que permitam tal análise. No Brasil, verifica-se a ausência de metodologias consolidadas que possibilitem uma análise efetiva dos impactos socioambientais cumulativos e sinérgicos, diferentemente de outros países como Estados Unidos, Canadá e os pertencentes à União Europeia, considerados referência no tema. A partir da análise de tais metodologias, observase que não somente a AIC pode servir ao processo de licenciamento, como também pode ser adotada de forma complementar e integrada a outros instrumentos para fins de planejamento, ordenamento e gestão territorial, como o Zonemanento Ecológico-Econômico (ZEE), desde que lançada luz sobre as dificuldades, entraves e as responsabilidades para a efetivação desses dois instrumentos, em separado, e de forma conjunta. A adoção dessa abordagem mostra-se como uma alternativa à gestão e ao planejamento socioambiental da Baía de Sepetiba, que desde a década de 1970 passa por um processo de degradação socioambiental severo, agravado a partir de 2000, pela ampliação do Polo Industrial de Sepetiba, destacando-se a instalação e a operação de três empreendimentos emblemáticos: a Companhia Siderúrgica do Atlântico (CSA), Porto Sudeste e o Complexo Naval de Itaguaí. / [en] Cumulative Impact Assessment (CIA) is not disseminated in Brazil, although Environmental National Counsel (CONAMA) requires cumulativity and synergistic processes to be identified in the scope of Environmental Impact Assessment due to environmental permitting processes. Part of it is caused by methodological and technical issues, and part is caused because of public information gaps. In Brazil there are no consolidated methodologies to identify and analize social and environmental impacts caused by cumulative and synergistic processes, unlike United States, Canada and European Union which are considered benchmarks concerning CIA. Once analyzed, these methodologies show that not only CIA may be used as part of the environmental permitting process in Brazil, but also may be integrated to other planning, ordering and management territorial tools, such as the Ecological and Economic Zoning, since considering the chalenges, dificulties and responsabilities concerning the separated or combined adoption of these two instruments. This approach may be considered as an alternative to social and environmental management and planning concerning Sepetiba Bay, where, since the 1970 s there is a severe social and enviromental degradation process in course, intensified by the 2000 s because of the expansion of the Sepetiba’s Industrial Center, where three enterprises may be highlighted: Companhia Siderúrgica do Atlântico (CSA), o Porto Sudeste and Complexo Naval de Itaguaí.
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Killing Terrorists - Armed Drones and the Ethics of War

Lundquist, Joel January 2014 (has links)
The aim of this thesis is to answer the question whether the U.S. policy on targeted killings with combat drones is compatible with the legal doctrine of just war theory, applicable international law, and human rights law. Moreover, this paper intends to examine the legal issues arising from the U.S. practice of international law in relation to the justification of targeted killings. The purpose of this thesis is to determine whether the practice of targeted killings can be considered lawful and, if not, to provide knowledge about how the method violates applicable international law and the ethics of war. The focus is placed on relevant treaties and customary international law, and just war theory is used as a theoretical complement to explain the meaning and purpose of selected laws in order to determine their applicability to the research problem. Furthermore, this procedure has been conducted by using a legal method to identify the legal problem and interpret relevant sources of law in order to determine their applicability to the research problem. The thesis has determined that the U.S. policy on targeted killings with combat drones is not consistent with applicable international law and fundamental human rights law. In particular, the practice of targeted killings violates the principle of distinction.

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