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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.
251

Diplomacia militar - Antônio Francisco Azeredo da Silveira: autonomia e interferências, o Itamaraty e o regime militar 1974-1979 / Military diplomacy Antônio Francisco Azeredo da Silveira: autonomy and interferences, the Itamaraty and the dictatorship 1974 - 1979

Thomas Dreux Miranda Fernandes 31 October 2016 (has links)
O tema proposto para estudo é investigar, delimitar e compreender os graus de autonomia e interferência existentes dentro do Itamaraty durante o regime militar brasileiro. O objeto central da análise é, para tanto, a vida, carreira e atuação do ex-membro do corpo diplomático brasileiro, Antônio Francisco Azeredo da Silveira, Ministro das Relações Exteriores durante o governo de Ernesto Geisel, entre 1974-1979. As fontes utilizadas são basicamente o arquivo pessoal do diplomata disponibilizado e digitalizado pelo CPDOC/FGV além de documentação oficial da Comissão Nacional da Verdade disponível online, também são consultados periódicos. A base teórica parte de David do Nascimento Batista que aponta como Habitus Diplomático sendo capaz de indicar a reformulação de práticas pela qual o Itamaraty passou durante o regime militar, entretanto, sem encerrar a discussão sobre autonomia e identidade nacional dentro do Ministério das Relações Exteriores, a pesquisa procura ajudar a preencher uma lacuna na historiografia brasileira no que diz respeito a atuação diplomática brasileira durante o regime militar. / The subject proposed for study in this research is to investigate, delimitate and understand the different levels of autonomy and interference that existed inside the Itamaraty during the brazilian dictatorship. The main object of analysis is the life, career and performance of an ex-member of the brazilian diplomacy, Antônio Azeredo da Silveira, Foreign Relations Minister during the administration of Ernesto Geisel, in the years of 1974-1979. The sources used in this investigation are basically the Personal Archive of the diplomat, avaiable and digitalized at CPDOC/FGV. Besides that, are also used offical documents of the Comissão Nacional da Verdade avaiable online, were consulted as well some periodics and secundary sources. The theorical basis have as fundamental mark what David do Nascimento Batista points out as Habitus Diplomático being capable of indicate an reformulation of practices wich Itamaraty had been through during the dictatorship, nevertheless, do not put an end in the discussion about autonomy and national identity. This research intends to help to fullfill an important blank in the brazilian historiography about the performance of the brazilian diplomacy during the dictatorship.
252

Um olhar sociotécnico para a construção de artefato informacional: a trajetória da construção de sistema de Business Intelligence

Freire, Elizabeth Maria 27 January 2017 (has links)
Submitted by Josimara Dias Brumatti (bcgdigital@ndc.uff.br) on 2017-01-26T16:14:05Z No. of bitstreams: 1 Dissertação de Mestrado - Elizabeth Maria Freire de Jesus.pdf: 1607326 bytes, checksum: 2335c5747f23e0c7910922b32bc69664 (MD5) / Approved for entry into archive by Jussara Moore (jussaramoore@id.uff.br) on 2017-01-27T13:50:04Z (GMT) No. of bitstreams: 1 Dissertação de Mestrado - Elizabeth Maria Freire de Jesus.pdf: 1607326 bytes, checksum: 2335c5747f23e0c7910922b32bc69664 (MD5) / Made available in DSpace on 2017-01-27T13:50:04Z (GMT). No. of bitstreams: 1 Dissertação de Mestrado - Elizabeth Maria Freire de Jesus.pdf: 1607326 bytes, checksum: 2335c5747f23e0c7910922b32bc69664 (MD5) / A construção de artefatos tecnológicos, em particular a construção de software, onde podem ser incluídos os sistemas de Business Intelligence, é predominantemente conduzida como sendo uma atividade “puramente” técnica. Se adotada esta linha de condução, aos profissionais da área da computação “cabem cuidar da parte „técnica‟ do artefato tecnológico”, sendo as demais, ou seja, as “não-técnicas” desconsideradas ou relegadas a um segundo plano. No entanto, percebe-se na prática que a construção desses artefatos se realiza em um fundo heterogêneo, onde temos posições de poder individuais e institucionais, ideologias, políticas, contextos tecnológicos e regulatórios, entre outros que permitem ou restringem a construção destes artefatos. À luz das ideias, principalmente, de Bruno Latour, este trabalho busca, tomando a abordagem metodológica da Teoria Ator-Rede, trazer visibilidade para as inúmeras associações entre diversos e heterogêneos elementos (humanos e não humanos) que se configuram, provisoriamente, em função dos variados interesses dos envolvidos que se encontram em cena, em certo lugar e tempo, durante a construção do artefato tecnológico. Também busca aplicar a noção de regime de informação pela identificação de alguns elementos do regime de informação local a partir do rastreamento da rede sociotécnica na qual o artefato estudado se insere. / The construction of technological artifacts, in particular the construction of software which is included Business Intelligence systems, is predominantly conducted as an activity " purely " technical . If adopted this line of conduct , the professionals in the computing " fit to take care of the ' technical ' technological artifact" , and the others , ie , the "non - technical " disregarded or relegated to the background . However, in practice it is noticed that the construction of these devices takes place in a heterogeneous background, where we have positions of individual and institutional power, ideologies , political , technological and regulatory contexts , among others that allow or restrict the construction of these artifacts . In light of the ideas, especially Bruno Latour, this job search, taking the methodological approach of Actor-Network Theory , bring visibility to the numerous associations between diverse and heterogeneous elements ( human and nonhuman ) that configure provisionally due the varied interests that are involved in the scene , in the right place and time, during the construction of technological artifact. Also seeks to apply the concept of regime of information for identifying some elements of the local regime of information from the tracking of sociotechnical network in which the artifact studied is inserted.
253

[en] TESTS OF PROTECTIVE RELAYS UNDER TRANSIENT REGIME / [pt] TESTES DE RELÉS DE PROTEÇÃO EM REGIME TRANSITÓRIO

CARLOS AUGUSTO DUQUE 09 September 2009 (has links)
[pt] Testes de relés de proteção têm assumido maior importância como resultado dos avanços tecnológicos. Novos relés podem ser projetados para atuarem rápido, sendo particularmente sensíveis a parte transitória da falta que eles supostamente detetam. Procedimentos usuais para testes de relés utilizam arquivos obtidos durante testes de falta, ou através de programas de simulação como o EMTP. Entretanto é muito difícil caracterizar um conjunto de formas de onda como suficiente para testes de relés. Como conseqüência, [16] sugeriu o uso de um procedimento do tipo Monte-Carlo para gerar ondas de modo a cobrir a maior parte das possíveis situações de transitório. Nesta metodologia, a linha de transmissão sob condição de falta é alimentada por um sistema equivalente fictício consistindo de um gerador de potência com uma impedância RLC. Quando a falta ocorre, o sistema oscila em determinadas freqüências. Estas freqüências são utilizadas para caracterizarem a forma de onda da falta. Neste trabalho um método de simulação de ondas viajantes é utilizado, baseado em filtros digitais, objetivando operação em tempo real. Como resultado, foi desenvolvido um procedimento de síntese do sistema fictício utilizando linhas de transmissão sem perdas ao invés de redes RLC. O software roda num computador tipo IBM PC tendo uma placa DSP baseada no chip TMS320C25. Os parâmetros da linha são calculados no PC e transferidos para a placa DSP, aonde a simulação é realizada em tempo real. Para casos com somente uma linha de transmissão, tal sistema trabalha com uma freqüência de amostragem de 4080 Hz representando transitórios de falta até 2040 Hz. Simulação OFF-LINE é também disponível para oferecer uma base de comparação entre a implementação em ponto fixo do DSP e a versão em ponto flutuante. Comparação com outro procedimento de simulação OFF-LINE é também apresentado com boa precisão entre os procedimentos ON-LINE e OFF-LINE. / [en] The testing of protective relays has become more and more important as result of technological advances. New relays may be designed to act fast, being particularly sensitive to the transient part of the fault supposed to be detected. A common procedure is either the use of real recorded faults during tests, or simulating these faults by computer programs, such as the EMP. However, it is difficult to characterize a unique set of transient waveforms sufficientfor the tests. As a consequence, it was suggested [16] the use of a Monte-Carlo type of procedure to generate waveforms in order to cover most of the possible transient situations. In this approach, the faulted transmission line is simulated, being fed by a fictitious equivalent system consisting of a power generator with an RLC load. When the fault occurs, there is resonance at particular chosen frequencies. These frequencies are used to characterize the fault waveform. In this work a travelling wave method of simulation is used, based on digital filters, looking for real time operation. As a result, it was developed a synthetic procedure for generating the fictitious system using lossless transmission lines instead of RLC networks. The software runs on a IBM PC type computer having a DSP board based on a TMS320C25. The transmission line parameters are evaluated in the PC and transferred to the DSP board, where real time the simulation is performed. For cases with only one lossless transmission line, the system works with a sampling frequency of 4.08 KHz, representing fault transients up to 20.04 KHz. Off-line simulation is available as well, primarily to offer a comparison basis between the fixed point DSP implementation and a floating point version. Comparison with other off-line simulation procedures are also presented with good agreemment between on-line and off-line procedures.
254

Figures du « réseautage en ligne » sur les réseaux socionumériques professionnels : le cas d’un groupe d’anciens sur LinkedIn / Types of online networking on professional social network sites : case study of an alumni group hosted on LinkedIn

Mesangeau, Julien 11 December 2012 (has links)
Notre enquête a été conduite auprès de membres d’un groupe d’anciens élèves hébergé sur le site de réseau social professionnel LinkedIn. Elle a permis de produire deux résultats. Le premier résultat est une typologie des figures du réseautage en ligne. Nous proposons trois figures. Le NetMining, qui relève d’un usage exploratoire du site et oùl’utilisateur cumule de nombreux contacts. Le NetWorking où l’utilisateur sélectionne des relations sur la base de critères précis. Le NetSticking où l’utilisateur reproduit en ligne un réseau personnel basé sur la confiance. Ces trois tendances permettent de souligner deux caractéristiques propres aux pratiques de réseautage en ligne. D’une part, elles reposent surune pluralité de dispositifs de communication où LinkedIn occupe une place tantôt centrale, tantôt marginale. D’autre part, ces pratiques ne reposent pas nécessairement sur la poursuite d’une action planifiée. Le second résultat produit par notre enquête est un dispositif d’étude des pratiques de réseautage. Il associe des techniques de visualisation de graphes et analyses d’entretiens semi-directifs / Our study had been carried on members of a social network hosted on the professional social network site, LinkedIn. It produced two main outcomes. The first is a typology of online Networking on three different classes. The first is the NetMining, which is a exploratory use of the website, where the user accumulated contacts. The second category is the NetWorking, where the users select contacts based on defined characteristics. The NetSticking is the third category, in which the user reproduced online a personal network based on trust. Those three categories highlight two main characteristics, specific to online networking. First, networking uses different means of communication, in whichLinkedIn is sometimes central, but sometimes marginal. Those practices are besides not necessarily based on planed actions. The Second result of our enquiry is a study device of the networking practices which associated graphs visualization technics and semi-directed interviews analyses
255

Doing community safety by locality working : regime theory and micro-climates of crime and disorder co-governance

Chappell, Neil January 2016 (has links)
The co-governance of crime and disorder and the involvement of the public within quasi-deliberative consultations of participatory forums to this end has been the subject of significant bodies of research (Clarke et al, 2007, Barnes, Newman and Sullivan: 2007). Such forums were applied to the micro-level of the neighbourhood during New Labour’s tenure in office in an attempt to reduce crime and disorder and to improve the responsiveness of service delivery. This has created situations whereby the governance of communities has been shifted to the micro-level of the neighbourhood (Stoker: 2004). Hughes and Edwards (2005) have proposed examining these micro-climates of crime and disorder co-governance in attempts to understand the importance of contextual factors in structuring of forms of community safety. My research utilises grounded theory to examine the impact of differing aspects of economic redevelopment within the context of the inner City, to both foster particular crime problems, and the typical solution-sets (Jones: 1998) utilised by practitioners in addressing them. In addition, I examine the structural role and impact of economic and cultural forces of urban redevelopment in creating and managing the ‘majorities’ (Stoker: 1998) amongst the public, and their perceptions of crime and disorder patterns. My research is conducted across three separate neighbourhood ‘localities’ within Plymouth City Centre with the intention being to understand how the individual particularisms of these areas contribute to the formation of different forms of community safety, and allied with it, subtly different forms of policing.
256

Uncertainty analysis and inversion of geothermal conductive models using random simulation methods

Jokinen, J. (Jarkko) 31 March 2000 (has links)
Abstract Knowledge of the thermal conditions in the lithosphere is based on theoretical models of heat transfer constrained by geological and geophysical data. The present dissertation focuses on the uncertainties of calculated temperature and heat flow density results and on how they depend on the uncertainties of thermal properties of rocks, as well as on the relevant boundary conditions. Due to the high number of involved variables of typical models, the random simulation technique was chosen as the applied tool in the analysis. Further, the random simulation technique was applied in inverse Monte Carlo solutions of geothermal models. In addition to modelling technique development, new measurements on thermal conductivity and diffusivity of middle and lower crustal rocks in elevated pressure and temperature were carried out. In the uncertainty analysis it was found that a temperature uncertainty of 50 K at the Moho level, which is at a 50 km's depth in the layered model, is produced by an uncertainty of only 0.5 W m-1 K-1 in thermal conductivity values or 0.2 orders of magnitude uncertainty in heat production rate (mW m-3). Similar uncertainties are obtained in Moho temperature, given that the lower boundary condition varies by ± 115 K in temperature (nominal value 1373 K) or ± 1.7 mW m-2 in mantle heat-flow density (nominal value 13.2 mW m-2). Temperature and pressure dependencies of thermal conductivity are minor in comparison to the previous effects. The inversion results indicated that the Monte Carlo technique is a powerful tool in geothermal modelling. When only surface heat-flow density data are used as a fitting object, temperatures at the depth of 200 km can be inverted with an uncertainty of 120 - 170 K. When petrological temperature-depth (pressure) data on kimberlite-hosted mantle xenoliths were used also as a fitting object, the uncertainty was reduced to 60 - 130 K. The inversion does not remove the ambiguity of the models completely, but it reduces significantly the uncertainty of the temperature results.
257

[en] THE FISCAL REGIME IMPACT ON SUBSALT RESERVES DEVELOPMENT / [pt] O IMPACTO DO MARCO REGULATÓRIO SOBRE O DESENVOLVIMENTO DAS RESERVAS DO PRÉ-SAL

ANA LUIZA SILVA DE ALVAREZ FLORES 29 June 2010 (has links)
[pt] A adoção de regimes fiscais em diversas indústrias vem sendo tema de discussões no meio acadêmico há diversos anos. Apesar de não se chegar a uma conclusão sobre qual regime é o mais eficiente, existe um consenso geral de que os regimes fiscais devem ser, tanto quanto possível, neutros. Ou seja, não devem impactar o nível de investimento e a atividade econômica devido à sua aplicação. A questão se torna ainda mais complexa quando a indústria analisada é a de exploração e produção de petróleo, na medida em que se trata de uma commodity essencial para garantir a segurança e autonomia nacional e, no caso da maior parte das reservas, com acesso restrito. No Brasil, durante anos a indústria de petróleo sequer foi capaz de garantir a autosuficiência de óleo do país. Mas recentemente, com a descoberta do mega campo de Tupi na região do pré-sal, teve início uma nova era na indústria petrolífera do país. Além do potencial de crescimento da produção de óleo nacional, surgem diversas questões quanto ao marco regulatório a ser adotado, já que sob o ponto de vista do governo, o objetivo do marco regulatório deve ser atrair investimentos e capturar o retorno econômico máximo de suas reservas. Sob as atuais circunstâncias, é provável que o governo queira aumentar sua participação sobre a produção das reservas da região do pré-sal, entretanto é preciso analisar com cuidado os reais benefícios de se adotar uma política mais restritiva frente aos pesados investimentos que serão necessários para desenvolver as reservas desta região. Este trabalho analisa cinco regimes fiscais atualmente em vigor em diferentes países, além do atual marco regulatório brasileiro, com o objetivo de avaliar como o país poderá reter o maior benefício econômico possível, através da análise de diferentes cargas tributárias, seu peso sobre a atratividade dos investimentos e o desincentivo às empresas explorarem de forma ótima as reservas das quais adquirem concessão. / [en] The adoption of tax systems in different industries has been a discussion subject in academic circles for several years. Although a conclusion hasn’t been reached yet about which system is more efficient, there is a consensus that tax systems should be neutral. In other words, the level of investment and the economic activity shouldn’t be affected by its application. The issue becomes even more complex when the industry being analyzed is upstream, to the extent that it is a commodity essential to ensure national security and autonomy, which usually has restricted access. In Brazil, for several years the oil industry wasn’t even able to guarantee domestic oil self sufficiency, but recently, with the discovery of huge Tupi field in the subsalt region, a new era began in the country s oil industry. Besides the enormous potential to increase production of domestic oil, there are several issues regarding the regulatory framework that should be adopted, since the government’s goal for the regulatory framework should be to attract investment and capture the maximum economic return of its reserves. Under current circumstances, it’s very likely that the government will consider increasing its share of the production from the subsalt region. However, the real benefits of adopting a more restrictive policy should be carefully analyzed, as heavy investments will be needed to develop the reserves in this region. This paper analyzes five tax systems currently adopted in different countries, besides the current regulatory framework in Brazil, aiming to evaluate how the country can retain the maximum economic benefit possible, through the analysis of different tax rates, its impact on investment attractiveness and the disincentive of private investment in acquiring concession of great reserves.
258

The co-operation regime of the international criminal court: the obligation of states to arrest and surender

Gidey, Maereg Gebregziabher January 2009 (has links)
Magister Legum - LLM / The study attempts to identify the concrete mechanisms inherent in the co-operation regime of the ICC in relation to the arrest and surrender of suspects. By doing so, it attempts to contribute to a better understanding of the procedural mechanisms pertinent to the question of arrest and surrender, thereby augmenting the emerging body of international literature focusing on this issue. Moreover, by examining real cases will identify practical deviations and suggests measures that need to be considered to remedy the problem. It is important that the procedures are clarified and followed properly. Otherwise, the ICC will lose credibility internationally, thus undermining the purpose of its creation, which was to combat impunity and to contribute towards achieving justice, peace and well being worldwide.
259

Influences of river flows on recruitment success of Fynbos riparian vegetation along selected high gradient streams in the Western Cape, South Africa

Magoba, Rozwivhona Faith January 2014 (has links)
>Magister Scientiae - MSc / Riparian vegetation occurs in two distinct zones, the wet bank and the dry bank. Knowledge on how the flow regime influences the zonal structure of riparian vegetation is required to mitigate the adverse effects of water resource utilization on riparian vegetation. The first objective of this study was to determine whether flow exerts a physical influence on zonal structure pre- or post-recruitment. An examination of the survival of seedlings and saplings was conducted along Western Cape rivers to investigate seedling persistence and survival on lateral zones. A comparison of the ratios of seedlings, saplings and adults in different riparian zones for the years, 2004, 2011 and 2013, was carried out. The results suggest that in general seeds are deposited randomly on the banks, where they germinate and become seedlings. Seedlings that become established at locations unsuitable for their persistence into adulthood are removed either by high flows or perish during dry conditions. Thus, lateral zonation eventually develops due to species differences in tolerance to conditions at different positions on the banks. The second objective was to explore the effects of the reduction in dry season low flows on the recruitment success of riparian species at sites upstream and downstream of abstraction points. At most sites plants were arranged into different lateral zones and the numbers of species between upstream and downstream sites were not significantly different. There were significant differences in the abundances between up- and downstream sites, with the loss of herbaceous plants and sedges at downstream sites, both of which favour moist conditions. Also, in the absence of dry season flows, the seedlings of dry bank tree species recruited closer to the channel than those at the sites with summer flows. The shifting of the dry bank into the channel narrows the channel, which may affect the hydraulic pressures exerted during floods. The spatial arrangement in the riparian zone has as much to do with flow conditions post recruitment as it does with conditions during recruitment. This shows that the structure of riparian plants is determined not only by whether or not the minimum flows are met, this points to the need to reinstate the naturally variable flow and adopting a holistic approach for the understanding and management of aquatic systems.
260

The Nuclear Non-Proliferation Treaty : a comparison of realist, liberal and constructivist views

Petersen, Bradley Craig January 2012 (has links)
Magister Philosophiae - MPhil / The Nuclear Non-Proliferation Treaty (NPT) was negotiated to stop the proliferation of nuclear weapons, resulting from the dangers associated with the use of these weapons well visible during 1945, in Hiroshima and Nagasaki and a nuclear arms race as seen during the Cuban Missile Crisis. During NPT Review Conferences, held every five years, the strength and integrity of this treaty is tested. Evident in NPT review conferences is the disagreement between nuclear weapon states and non-nuclear weapon states over the role and importance placed on nuclear weapons and the slow pace of nuclear disarmament. The NPT has been in force for over 40 years; however the threat of nuclear weapons still exists. It then becomes necessary to understand what role the NPT plays in the international system, which differs depending on the theoretical lens used to interpret the NPT. A realist perspective of the NPT reveals that this treaty is an instrument used by dominant states to safeguard and legitimise their hold over nuclear weapons, while denying other states access to these weapons, instead protecting their allies through extended nuclear deterrence. A liberal perspective of the NPT highlights the moral influence of this treaty as an instrument for the benefit of the greater good, to shield humanity from the dangers of a nuclear explosion by delegitimizing nuclear weapons, key to shaping the perceptions of the decision makers of states regarding state security and nuclear weapons particularly. A constructivist interpretation of the NPT argues that this treaty is a social construction by states to impose a measure of order in their relations. At particular times in history, the NPT moves between a realist and liberal interpretation based on critical events that inform its direction. Social agents (decision makers of the state) through their thinking and ideas construct and give meaning to “reality” which is constantly negotiated. With that in mind, no interpretation of the NPT is fixed and for that reason, a constructivist conclusion seems ultimately applicable, namely that the NPT is what states make of it.

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