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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.
691

Zemědělství v chráněné krajinné oblasti Šumava / Agriculture in the Protected Landscape Area Šumava

POLENSKÝ, Jakub January 2014 (has links)
Landuse for farming purposes is an indispensable part of management in specially protected areas although the process of farming has been importantly limited by restrictive arrangements, as agrotechnological terms which are caused by the needs of environmental protection. This diploma thesis deals with the impact of some limiting rules on running of the farms which are farming in convenction way, situated in the area CHKO Šumava. Field research was performed in the form of dialogs and was focused on detection of owner´s opinions concerning their relationship with CHKO authority, impact of agrotechnological terms on running of the farm and revealing of their future plans. Based on the analysis it is possible to say that all the farmers declare the cooperation with CHKO authority as definitely negative whereas the present payments for natural disadvantage compensation appears to be clearly positive and they cannot imagine future farming without them. Agrotechnological terms followed from specific regime of specially protected areas have been declared as minimally restrictive because the owners have adopted them the farm working.
692

Entre os seus e os outros : horizonte, mobilidade e cosmopolítica guarani

Pradella, Luiz Gustavo Souza January 2009 (has links)
Com base em cinco anos de etnografia junto aos grupos guarani, no estado brasileiro do Rio Grande do Sul e em diálogo com a bibliografia etnológica, esta dissertação versa sobre a mobilidade entre os coletivos guarani. Metodologicamente, a pesquisa na qual ela se baseia interage com a proposta de uma antropologia de rotas, em detrimento ao localismo de uma antropologia de campo. Com o objetivo de compreender os diferentes aspectos do caminhar, são adotados distintos prismas teóricos sob os quais este fenômeno é analisado. Imbricada na cosmopolítica destes grupos, a mobilidade encontra-se intrinsecamente relacionada às aproximações e afastamentos nas relações com as alteridades, sejam estas humanas ou extrahumanas. A mobilidade possui também grande peso nas concepções e cuidados em torno da pessoa divídua que caminha e, igualmente, se constitui na busca pelo estado de perfeição (aguyjê) e/ou pela terra sem males (yvy maraëy). Encontra-se, portanto, estreitamente relacionada ao xamanismo, em seus mais diversos aspectos, permeia o modo de ser e a visão de mundo destas coletividades. / Based on five years of ethnography with the guarani groups in the Brazilian state of Rio Grande do Sul and in dialogue with the ethnological literature, this dissertation is about the guarani's mobility. Methodologically, the research interacts with the proposal originated in an route's anthropology rather than a field's anthropology. Aiming to understand the different aspects of walking, we adopt different theoretical prisms under which this phenomenon is analyzed. Imbricated in these group's cosmopolitics, the mobility is intrinsically related to the removals and approaches in relations with otherness, whether human or extra-human. Mobility also has great influence on construction and care of the dividuals person in movement, and also is the quest for the condition of perfection (aguyjê) and/or the "land without evil" (yvy maraëy). It is therefore closely related to shamanism, in its several aspects, permeates the way of being and world view of these communities.
693

The claim of language: A phenomenological approach

Culbertson, Carolyn Sue, 1982- 06 1900 (has links)
xi, 182 p. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number. / This dissertation develops an interpretation of Martin Heidegger's philosophical project in On the Way to Language and some of his earlier works that pave the way for this text and offers criticism of Heidegger's project in light of this interpretation. On the Way to Language stands apart from most twentieth century philosophy in arguing that, although human beings are within language in one sense, our relationship to language is nevertheless an estranged one. Heidegger often describes this condition as "lacking the word for the word." Because we are constantly speaking, we rarely if ever stop to wonder about the nature of language itself. Heidegger calls this our "entanglement" within language, a concept rooted in Being and Time 's exposition of the human being's thrownness. Read in terms of language, thrownness describes how we inherit concepts and find ourselves entangled in words prior to our reflection upon them. Heidegger presents what motivates us to bring the word to word in two ways. First, this need is rooted in the human being's fundamental structure of thrownness. Second, the need makes itself manifest through translation. My reading expands upon these two explanations of how we come to experience this entanglement, arguing that everyday communication regularly offers such experiences and demands that we modify, therefore temporarily distancing ourselves from, given language inheritances. The dissertation employs three other theorists, Roman Jakobson, Judith Butler, and Julia Kristeva, to flesh out how this need naturally arises in ordinary language development. Though he underestimates the extent to which everyday communicative situations require ongoing transformations of ordinary language, Heidegger nevertheless considers social encounters to be an important vehicle for language transformation. In this way, the goal of bringing our thrownness into language to word is not to disentangle ourselves from social relations, as some commentators have suggested. The last chapter shows how Paul Celan's poetics, in its inheritance of Heidegger's project, expands upon the role of social relations in language entanglement. / Committee in charge: Scott Pratt, Co-Chairperson, Philosophy; John Lysaker, Co-Chairperson, Philosophy; Beata Stawarska, Member, Philosophy; Peter Warnek, Member, Philosophy; Jeffrey Librett, Outside Member, German and Scandinavian
694

Nova Jaguaribara: representações sobre o modo de vida urbano / Nova Jaguaribara: representations on the urban way of life

BRAZ, Milena Marcintha Alves January 2005 (has links)
BRAZ, Milena Marcintha Alves. Nova Jaguaribara: representações sobre o modo de vida urbano. 2005. 108f. – Dissertação (Mestrado) – Universidade Federal do Ceará, Programa de Pós-graduação em Sociologia, Fortaleza (CE), 2005. / Submitted by Márcia Araújo (marcia_m_bezerra@yahoo.com.br) on 2013-10-22T17:06:24Z No. of bitstreams: 1 2005-DIS-MMABRAZ.pdf: 686445 bytes, checksum: be80f10b5794e1d82cac4971f326e0a2 (MD5) / Approved for entry into archive by Márcia Araújo(marcia_m_bezerra@yahoo.com.br) on 2013-10-23T13:30:09Z (GMT) No. of bitstreams: 1 2005-DIS-MMABRAZ.pdf: 686445 bytes, checksum: be80f10b5794e1d82cac4971f326e0a2 (MD5) / Made available in DSpace on 2013-10-23T13:30:09Z (GMT). No. of bitstreams: 1 2005-DIS-MMABRAZ.pdf: 686445 bytes, checksum: be80f10b5794e1d82cac4971f326e0a2 (MD5) Previous issue date: 2005 / This work results from a field research undertaken in Nova (New) Jaguaribara, a city designed and built by the state government of Ceará as an alternative to resettle the displaced population of Jaguaribara (a historic city with a large rural zone) due to the construction of The Castanhão Dam. This investigation sought to understand the representations of residents about the way of life in the planned city. This is because the new model has brought new forms of sociability, different from what the residents were accustomed. Given the above, the intention was to understand how the lifestyle of the residents has changed under the new urban configuration. To describe and analyze this problem, I gathered qualitative data collected through semi-structured interviews, recorded with local residents, informal conversations andobservations recorded in field journal. Also researched official documents of state government on the Dam project and the newcity as well as newspaper clippings on the subject. We can find in the reports analyzed the views of respondents about the planned city, ranging from praise to the large and modern structure, to dissatisfaction about having to live with "outsiders" that move around the city. Other respondents referred to problems such as: neighborhood, survival, urban sanitation, aesthetics and spatial distance. / O presente trabalho resulta de uma pesquisa de campo empreendida em Nova Jaguaribara-CE, cidade projetada e construída pelo Governo do Estado do Ceará como alternativa para reassentar a população deslocada de Jaguaribara (município histórico e com grande zona rural), devido à construção da Barragem do Castanhão. Busquei nessa investigação compreender as representações dos moradores sobre o modo de vida na cidade planejada, pois devido ao novo modelo, formas de sociabilidade diversas daquelas que os moradores estavam habituados passaram a existir. Diante do exposto, a intenção foi compreender como o modo de vida dos moradores foi alterado no contexto da nova configuração urbana. Para descrever e analisar tal problemática reuni dados qualitativos, colhidos por meio de entrevistas semi-estruturadas, gravadas com moradores locais; de conversas informais e de observações registradas em diário de campo. Analisei ainda, documentos oficiais do governo do Estado sobre o projeto da Barragem e da nova cidade, bem como recortes de jornais sobre o assunto. Nos relatos analisados está presente a percepção dos entrevistados acerca da cidade planejada, que oscila, entre elogios à estrutura ampla e moderna do espaço e a insatisfação por terem que conviver com pessoas “de fora” que transitam pela cidade. Outros entrevistados se referem a problemas, como: vizinhança, sobrevivência, limpeza urbana, estética e distância espacial.
695

Formação do assistente social como intelectual difusor da nova pedagogia da hegemonia

Damasceno, Ana Maria de Oliveira January 2013 (has links)
Submitted by Mario Mesquita (mbarroso@fiocruz.br) on 2014-10-15T12:29:55Z No. of bitstreams: 1 Ana Maria de Oliveira Damasceno.pdf: 893025 bytes, checksum: 12027e016e7db9b61c1c97e30b819b22 (MD5) / Approved for entry into archive by Mario Mesquita (mbarroso@fiocruz.br) on 2014-10-15T12:56:37Z (GMT) No. of bitstreams: 1 Ana Maria de Oliveira Damasceno.pdf: 893025 bytes, checksum: 12027e016e7db9b61c1c97e30b819b22 (MD5) / Made available in DSpace on 2014-10-15T12:56:37Z (GMT). No. of bitstreams: 1 Ana Maria de Oliveira Damasceno.pdf: 893025 bytes, checksum: 12027e016e7db9b61c1c97e30b819b22 (MD5) Previous issue date: 2013 / Fundação Oswaldo Cruz. Escola Politécnica de Saúde Joaquim Venâncio. Programa de Pós-Graduação em Educação Profissional em Saúde. / Este trabalho de pesquisa realizou um estudo sobre as mudanças ocorridas nas políticas social e educacional brasileiras que se refletiram na formação profissional do assistente social. Constatou que a formação desse profissional vem sofrendo mudanças que se dirigem à reconfiguração da sua formação, alinhada aos preceitos neoliberais de Terceira Via, especialmente quanto à formação de intelectuais orgânicos desse novo projeto da burguesia mundial. Baseado em pesquisa bibliográfica e documental, o estudo evidenciou que existem duas ordens de fatores que interferem direta e indiretamente na formação desses intelectuais, de novo perfil técnico e ético-político. De modo indireto, interferiram nessas mudanças a política de privatização e a reforma da educação superior empreendida no governo Lula da Silva, e o próprio desenvolvimento sócio-histórico da formação do assistente social brasileiro. De modo direto, foram identificados o não cumprimento das orientações curriculares da Associação de Ensino e Pesquisa em Serviço Social por parte das instituições de ensino superior privadas, a oferta de disciplinas que se coadunam com as prerrogativas neoliberais e as propostas de projeto político pedagógico das instituições estudadas. / This research conducted a study on the changes in the Brazilian social and educational policies that reflected in professional training of social workers. Found that the formation of this professional has undergone changes that address the reconfiguration of their training, in line with the precepts of neoliberalism of Third Way, especially the formation of organic intellectuals of this new project of the world bourgeoisie. Based on literature and documents the study showed that there are two types of factors that interfere directly and indirectly in the formation of these intellectuals, the new profile technical and ethical politico. Indirectly, these changes interfere with the policy of privatization and reform of higher education undertaken in government Lula and the actual development socio-historical formation of the Brazilian social worker. In this way direct not been identified the not comply with the guidelines of the curriculum da Associação de Ensino e Pesquisa em Serviço Social, by the institutions of private higher education, offering courses that are consistent with the neoliberal prerogatives and political pedagogical project proposals of the institutions studied.
696

Simulation numérique et modélisation de l'assimilation de substrat par des microorganismes dans un écoulement turbulent / Numerical Simulation and modelling of substrate assimilation by microorganisms in a turbulent flow

Linkes, Marion 06 December 2012 (has links)
Une des problématiques majeures dans l’industrie des bioprocédés réside dans l’extrapolation des procédés biologiques à grande échelle. On observe généralement à l’échelle industrielle des écarts de rendement de croissance de la biomasse, ainsi que la formation de sous-produits comparativement à l’échelle du laboratoire. La formation de gradients de concentration à l’échelle des bioréacteurs est souvent évoquée. Dans ce travail, les interactions entre micromélange et assimilation du substrat sont abordées à l’échelle du microorganisme. Un modèle couplant transport et assimilation à l’échelle d’un microorganisme est proposé. L’existence de régimes physique et biologique, limitant l’assimilation du substrat est mise en lumière. Une approche basée sur le suivi Lagrangien de particules dans un champ de turbulence homogène isotrope est ensuite retenue. Les effets des hétérogénéités de concentration vues par les microorganismes, sont traduits à l’échelle de la population entière. Une loi analytique permettant de construire la distribution de flux reçus par les microorganismes à partir de la distribution de concentration en substrat dans le fluide, est proposée. Partant de cette distribution de concentrations vues, l’adjonction d’un modèle métabolique simplifié permet d’expliquer les baisses de vitesse spécifiques de croissance et la formation de sous-produits observées expérimentalement. Enfin, de premiers résultats sur le couplage inverse biologique sont présentés. L’effet des microorganismes sur le champ de concentration est caractérisé et une étude paramétrique sur les propriétés dynamiques et biologiques est réalisée. / The scale-up of biological process is a critical issue in the bioprocess industry. When passing from a laboratory to an industrial scale, the conversion yield of substrate into biomass is often overestimated and by-products are formed. Different existing works attempt to predict the effect of mixing on biomass growth and the emergence of substrate concentration gradients at the reactor scale are a first explanation of the degraded performances. In this work the interactions between micro-mixing and substrate assimilation are addressed at the microorganism scale. A coupled transport-assimilation model is proposed for an isolated microorganism. The emergence of physical and biological regimes limiting the substrate assimilation is enlightened. An approach based on the Lagrangian tracking of microorganisms in a homogeneous isotropic turbulent field is then chosen. The effects of local concentration heterogeneities seen by microorganisms are observed at the population scale. An analytical expression is proposed for the assimilated substrate flux distribution by the microorganisms, based on the substrate concentration distribution in the fluid. From these concentrations encountered by microorganisms, we coupled a simplified metabolic model that explains the decreased specific growth rate, and the by-products formation often observed in many experiments. Finally, first results on the biological two-way coupling are proposed. The effect of microorganisms on the substrate field is characterised and a parametric study on the dynamics as well as biological parameters is realised.
697

Práxis pedagógica : modo de vida da juventude rural e ensino de sociologia

Russczyk, Jaqueline January 2013 (has links)
Le thème central de cette étude est l'enseignement de la sociologie dans l'enseignement secondaire destiné aux jeunes du champ. Ainsi, il surgit le problème de recherche suivant: la mesure dans laquelle la praxis pédagogique de l'enseignement de la sociologie considère le mode de vie des jeunes en milieu rural, et en particulier les jeunes en campements ruraux, et contribue au développement humain? Pour répondre à cette question trois écoles de la ville de Abelardo Luz, Santa Catarina, une école dans une zone urbaine et deux écoles dans le campement du MST ont été interrogés. Un questionnaire a été administré auprès de 36 jeunes élèves ruraux et 36 jeunes élèves de campements ruraux. L'étude est composée par une approche quantitative et qualitative, avec la méthode des représentations sociales. Les techniques de recherche utilisées ont été: enquête par questionnaire, entretien, observation, littérature. Les instruments suivants ont été utilisés pour recueillir des données: questionnaires, parcours de questions, carnet de terrain, magnétophone, caméra, bibliographies. On a conclu que les jeunes sont encore incapables de franchir la frontière entre la connaissance du sens commun et des connaissances scientifiques, même au niveau de l'école secondaire. On considère que, pour que l'enseignement de la sociologie contribue au développement rural, outre les points sur la formation des enseignants, les programmes, la participation, l'accès et des ressources consacrées à l'éducation et d'autres services, la praxis pédagogique en sociologie doit être résultant de l'utilisation de la théorie à la analyser leur propre pratique pédagogique, c’-est-à-dire rechercher l'enseignement même de la sociologie et les caractéristiques des sujets qui font partie de la médiation pédagogique sans considérer les stéréotypes de leur mode de vie et en améliorant l'engagement, la liberté d'être et de faire. / O tema central deste estudo é o ensino de sociologia no ensino médio direcionado aos jovens do campo. Deste modo, tem-se o seguinte problema de pesquisa: em que medida a práxis pedagógica do ensino de sociologia considera o modo de vida dos jovens rurais e, especialmente, dos jovens rurais assentados, e contribui para o desenvolvimento humano? Para responder a esta questão, foram pesquisadas três escolas no município de Abelardo Luz, Santa Catarina, uma escola em área urbana e duas escolas no assentamento do MST. Foi aplicado um questionário para 36 jovens rurais e 36 jovens rurais assentados. O estudo teve abordagem quantitativa e qualitativa, juntamente com o método das representações sociais. As técnicas de pesquisa utilizadas foram: inquérito por questionário, entrevista, observação, pesquisa bibliográfica. Foram usados os seguintes instrumentos de coleta de dados: questionário, roteiro de questões, diário de campo, gravador, máquina fotográfica, bibliografias. Conclui-se que os jovens ainda não conseguem transpor a fronteira entre conhecimento de senso comum e conhecimento científico, mesmo que em nível de ensino médio. Compreende-se que, para que o ensino de sociologia contribua ao desenvolvimento rural, além dos pontos sobre formação docente, currículo, participação, acessos e recursos voltados à educação e demais serviços, a práxis pedagógica em sociologia necessita ser resultante da utilização da teoria para analisar a própria prática docente, ou seja, pesquisar o próprio ensino de sociologia e as características dos sujeitos que fazem parte da mediação pedagógica, sem estereotipar seu modo de vida e potencializando o engajamento, a liberdade de ser e de fazer. / The central theme of this study is the teaching of sociology in secondary education targeted at rural young students. Thus, we have the following research problem: to what extent the pedagogical praxis of sociology teaching considers the way of life of rural youth, and especially young rural settlers, and contributes to human development? In order to answer this question, three schools in the city of Abelardo Luz, Santa Catarina, a school in an urban area and two schools in the MST settlement were surveyed. A questionnaire was administered to 36 young men and 36 settled rural youths. The study was quantitative and qualitative approach, together with the method of social representations. The research techniques used were: questionnaire survey, interview, observation, literature. The following instruments were used to collect data: questionnaires, question script, field journal, tape recorder, camera, bibliographies. It is concluded that young people are still unable to cross the border between common-sense knowledge and scientific knowledge, even at high school. It is understood that, in order to make the teaching of sociology contribute to rural development, besides the points on teacher training, curriculum, participation, access and resources devoted to education and other services, the pedagogical praxis in sociology needs to be resulting from the use of theory to analyze the own teaching practice, i.e. it needs to research the teaching of sociology and the characteristics of the subjects that are part of the pedagogical mediation without stereotyping their way of life and enhancing their engagement, the freedom to be and do.
698

Sistema de mão única considerando a capacidade da rede viária. / One-Way system considering the capacity of road network.

CARVALHO FILHO, Amaro Monteiro de. 02 October 2018 (has links)
Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-10-02T15:13:41Z No. of bitstreams: 1 AMARO MONTEIRO DE CARVALHO FILHO - DISSERTAÇÃO PPGECA 1976..pdf: 10529018 bytes, checksum: 417ae607a1e27be1c792cbe8edbf9cc2 (MD5) / Made available in DSpace on 2018-10-02T15:13:41Z (GMT). No. of bitstreams: 1 AMARO MONTEIRO DE CARVALHO FILHO - DISSERTAÇÃO PPGECA 1976..pdf: 10529018 bytes, checksum: 417ae607a1e27be1c792cbe8edbf9cc2 (MD5) Previous issue date: 1976-11 / Neste estudo, sistemas de mão única são discutidos, do ponto de vista da capacidade da rede viária. A capacidade da rede viária é definida como o número máximo de veículos que pode viajar facilmente, sem congestionamentos grandes e sem paradas significativas. Isso pode ser determinado pela aplicação do método da Divisão de Alocação de Tráfego, no qual o total de viagens 0D é incrementado pouco a pouco, mantendo-se o padrão 0D constante. Através desse estudo, pode-se concluir que é consideravelmente difícil encontrar-se um bom sistema de mão única, possível de aumentar a capacidade da rede viária. / In this study, one-way sistems are discassed from viewpoint of road network capacity. The road network capacity is definid as the maximum number of vehicles that can travel smoothley withoat heavy congestion and unreasonable stoppings. This can be determined by application of Division Method of traffic assignment in which the total 0D trips are increased litteby little keeping the constant 0D pattern. Through this study it can be conclud that it is considerable difficult to find a good one-way system possible to increase the road network capacity.
699

O integralismo no sertão de São Paulo: um fascio de intelectuais

Ribeiro, Ivair Augusto [UNESP] 30 September 2004 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:26:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2004-09-30Bitstream added on 2014-06-13T18:54:38Z : No. of bitstreams: 1 ribeiro_ia_me_fran.pdf: 1883453 bytes, checksum: 949727bbb0c4c6d2728224efc9bda977 (MD5) / Universidade Estadual Paulista (UNESP) / A Ação Integralista Brasileira constituiu-se na década de 1930, no mais importante movimento político de direita e no primeiro partido de massa do país. Influenciada pela ideologia fascista italiana, a A.I.B. criou núcleos espalhados por todo o Brasil, como na cidade de Olímpia, encravada nos anos 30 no então sertão de São Paulo. O núcleo municipal da Ação Integralista foi fundado em 1934 por Ruy do Amaral e teve no jornal “Cidade de Olympia” uma espécie de porta-voz não oficial do movimento. Entre 1932 e 1937, o semanário publicou 93 artigos e notícias dos mais diversos matizes sobre o movimento integralista, inclusive uma contundente entrevista com Plínio Salgado. É a partir da análise desses artigos e notícias e da história oral de dois dos principais camisas-verdes do sertão, Ruy do Amaral e Ítalo Galli, que tornou-se possível reconstruir parte da história de um núcleo municipal da Ação Integralista no interior do país. Tanto os textos escritos como as entrevistas, apresentam um movimento impregnado pelo fascismo e pelo anti-semitismo. A maioria dos camisas-verdes que escreveram artigos para o “Cidade de Olympia”, deixou clara sua adesão à A.I.B. por considerar o movimento uma cópia do fascismo e por adotar a posição anti-semita. Por outro lado, o movimento integralista em Olímpia ignorou o fato de atuar numa região de vida rural e teve uma inserção no campo insignificante. Mesmo portador de um discurso fascista, os integralistas do sertão, profissionais liberais em sua maioria, preferiram elitizar esse discurso, desprezar ações de mobilização das massas e perpetuar uma relação de “compadrio” com os coronéis que dominavam a vida política em Olímpia, constituindo, assim, uma espécie de “fascio de intelectuais”. / The Brazilian Integralist Action was formed in the decade of 1930, at the most important right political movement and at the first mass party of the country. Influenced by the Italian Fascist Ideology, the Brazilian Integralist Action created cores spread all over Brazil, like in the city of Olimpia, embedded in the 30s, then called “Sertão” (a less inhabited part in a country) of São Paulo. The Integralist Action Municipal Core was founded in 1934 by Ruy do Amaral and had in the newspaper “Cidade de Olympia” a type of non-official spokesman of the movement. Between 1932 and 1937, the weekly paper published 93 articles and news of the most diverse shades about the integralist movement, including an aggrieved interview with Plínio Salgado. It is from the analysis of these articles and news and the oral history of two of the main “green-shirts” from “Sertão”, Ruy do Amaral e Italo Galli, that it was possible to re-create part of the history of an Integralist Action Municipal Core at the inland country. The written texts, as well as the interviews, present a movement permeated by the Fascism and by the Anti-Semitism. Most of the “green-shirts” who wrote articles for the “Cidade de Olympia”, made clear their adhesion to the Brazilian Integralist Action for considering the movement a copy of fascism and for adopting the anti-semit position. On the other hand, the integralist movement in Olimpia ignored the fact of acting in a rural life region, and had an insignificant insertion in the country life. Even holding a fascist speech, the integralist from “Sertão”, liberal professionals mostly, preferred to select this speech, disregard mass mobilization actions and perpetuate a “compadrio”relation (close relation) with the Colonels who dominated the political life in Olimpia, building up, this way, a kind of “intelectual fascio”.
700

Manejo do nitrogênio no feijoeiro de inverno em sucessão a milho e Brachiaria em sistema plantio direto

Binotti, Flávio Ferreira da Silva [UNESP] 13 August 2009 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:35:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-08-13Bitstream added on 2014-06-13T19:46:25Z : No. of bitstreams: 1 binotti_ffs_dr_ilha.pdf: 5975802 bytes, checksum: 90bef1ffaba7ce8cb7d8049d45949057 (MD5) / O nitrogênio é um nutriente que pode propiciar efeitos benéficos na produtividade, na qualidade química e fisiológica das sementes de feijão. Assim, é de fundamental importância saber qual o momento adequado para sua aplicação e a fonte de N a ser utilizada, além da interação com a prática da inoculação de sementes com Rhizobium spp., em sistema plantio direto. O objetivo do trabalho foi o de estudar o efeito da inoculação de sementes, fontes e modos de aplicação de nitrogênio no desenvolvimento, produtividade, qualidade química e fisiológica de sementes do feijoeiro de inverno no sistema plantio direto em sucessão a milho e Brachiaria. O delineamento experimental foi o de blocos casualizados em esquema fatorial 2x2x8, com quatro repetições. O trabalho foi desenvolvido em Latossolo Vermelho Distrófico argiloso, Selvíria (MS) em dois anos (2006 e 2007) e os tratamentos foram constituídos pela combinação de inoculação de sementes (presença e ausência) com Rhizobium tropici (estirpes SEMIA 4077 + SEMIA 4080), fontes de nitrogênio (uréia – 45% de N e Entec 26® - 26 % de N + 13% de S + inibidor da nitrificação) e modos de aplicação de nitrogênio (testemunha – sem N, 30 dias antes da semeadura – DAS, 15 DAS, semeadura, 15 dias após semeadura no estádio V2 – DASe, 30 DASe no estádio V4, 1/3 Semeadura + 2/3 15 DASe, 1/3 Semeadura + 2/3 30 DASe) na dose de 90 kg ha-1. A uréia é o adubo nitrogenado recomendado para feijoeiro de inverno irrigado, podendo ser aplicado antecipadamente aos 15 DAS ou na semeadura e/ou cobertura. A inoculação propiciou maior teor de carboidratos (açúcares livres e amido) nas sementes, porém, não tem influencia diretamente na qualidade fisiológica e produtividade / Nitrogen is a nutrient that may provide beneficial effects on yield, physiological and chemical quality of common bean seeds. So, it is fundamental importance to know what the right time for its application and the source of N to be used in addition to interaction with the practice of seed inoculation with Rhizobium spp. in no tillage system. The objective of the work was to study the effect of seed inoculation, nitrogen sources and split in the growth, yield, physiological and chemical quality of the common bean seeds in the winter in no tillage system over graminea, in a dystrophic clayey Latosol – Haplustox, MS. The work was carried out in two years (2006 and 2007) in a randomized blocks design using a factorial scheme 2x2x8 and 4 repetitions, constituted by seed inoculation with Rhizobium tropici (presence and absence), two sources of nitrogen (urea - 45% nitrogen and Entec 26® - 26 % de N + 13% de S + DMPP molecules aiming to inhibit nitrification) and eight stadia of nitrogen application (control without N application, 30 days before sowing – DBS, 15 DBS, at sowing – S, 15 days after sowing – DBSe, 30 DBSe, 1/3 S + 2/3 15 DBSe, 1/3 S + 2/3 30 DBSe) at 90 kg ha-1. The urea nitrogen is recommended for irrigated winter common bean and can be applied in advance at 15 DBS or at sowing and/at sidedressing. The inoculation provided higher content of carbohydrates (free sugars and starch) in seeds however, does not directly influence the physiological quality and yield

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