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Usinas de açúcar: habitação e patrimônio industrial / Sugar mills: residential provision and industrial heritageCampagnol, Gabriela 25 August 2008 (has links)
Estuda a emergência, características - implantação e arquitetura - e transformações do espaço organizado pela agroindústria do açúcar e do álcool para seus trabalhadores, através de levantamentos de campo em três regiões tradicionais de produção no Brasil: zona da mata de Pernambuco, norte fluminense e interior de São Paulo. Estuda e compara outros assentamentos constituídos em regiões produtoras de açúcar em Cuba e Estados Unidos. Realiza estudos comparativos em diferentes núcleos fabris com o intuito de verificar padrões e características específicas nos assentamentos açucareiros. Busca desvendar a ação do poder privado, no caso as usinas de açúcar, na construção do território. Paralelamente, analisa as origens dessa ação, a difusão da prática e o processo de desmonte e abandono que vem ocorrendo. Aborda, ainda, como conseqüência destas transformações, questões vinculadas ao patrimônio industrial. / This dissertation investigates the origins, development, and spatial organization - plan, architecture and collective spaces - of several sugar mills located in three traditional sugar regions in Brazil: Pernambuco, Rio de Janeiro, and Sao Paulo. The study also investigates other sugar settlements located in Cuba and United States. The comparative study in different sugar mills, attempts to discover common models and, on the other hand, distinguishing characteristics specific to each mill. The dissertation interrogates the influence of the sugar industry\'s action on the construction and planning of the territories in which the mills are located. To that end, the study analyzes the origins and development of those actions. Finally, the dissertation considers the more recent history of sugar mills reduction and elimination of residential provision and discusses questions specific to these aspects of industrial heritage.
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Instantons em espaços curvos / Instantons in curved spacesTavares, Gustavo Marques 24 September 2018 (has links)
Orientador: Ricardo Antonio Mosna / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin / Made available in DSpace on 2018-09-24T14:09:39Z (GMT). No. of bitstreams: 1
Tavares_GustavoMarques_M.pdf: 695474 bytes, checksum: c437bafa3afb0c0768437e1a139eea12 (MD5)
Previous issue date: 2010 / Resumo: Neste trabalho estudamos os instantons da teoria de Yang-Mills nos espaços de Schwarzs-child e de Reissner-Nordstrom com grupo de gauge SU(2).Instantons são soluções clássicas da teoria de Yang-Mills definida em um espaço com métrica riemanniana (positiva-definida) e com ação finita.
Primeiramente revisamos a formulação geométrica da teoria de Yang-Mills em uma variedade 4-dimensional,identificando os campos de gauge com conexões em um fibrado principal. Em seguida apresentamos os principais resultados clássicos relacionados aos instantons no espaço plano. Na segunda parte da dissertação realizamos um estudo sistemático das soluções da teoria de Yang-Mills nos espaços de Schwarzschild e de Reissner-Nordstrom euclidianos. Esta abordagem nos permitiu descobrir novas famílias de instantons neste contexto.Ainda,os resultados obtidos mostram que o número de famílias de instantons no espaço de Reissner- Nordstrom depende diretamente da carga elétrica que caracteriza esta geometria / Abstract: In this work we study instanton solutions of the Yang-Mills theory in Schwarzschild and Reissner-Nordstrom spaces with gauge group SU(2).Instantons are solutions to the classical field equations of Yang-Mills theory defined in a space with Riemannian (positive de finite)metric with finite action. We begin with a review of the geometric setting of Yang-Mills theory on a four dimensional manifold,which relates the gauge fields to connections on a fiber bundle.We proceed by presenting the main results related to instantons in flat space. In the second part of this thesis we perform a systematic study of the solutions of Yang-Mills theory in Euclidian Schwarzschild and Reissner-Nordstrom spaces.This approach led us to discover a new family of instantons de fined in those backgrounds. Moreover, our results show that the number of instanton families in the Reissner-Nordstrom space depends directly on the eletric charge which caracterizes this geometry / Mestrado / Física das Particulas Elementares e Campos / Mestre em Física
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Os Homens que Faziam o Tupinambà Moer:ExperiÃncia e Trabalho em Engenhos de Rapadura no Cariri (1945-1980) / Os Homens que Faziam o Tupinambà Moer:ExperiÃncia e Trabalho em Engenhos de Rapadura no Cariri (1945-1980)Maria Yacà Carleial Feijà de Sà 07 December 2007 (has links)
Os homens que faziam o Tupinambà moer à um estudo sobre um dos mais importantes engenhos do Cariri Cearense. Uma histÃria de seus trabalhadores, de suas experiÃncias na arte de fazer rapadura, de suas prÃticas de sociabilidade e estratÃgias nos embates com os patrÃes. VivÃncias permeadas por transformaÃÃes socioeconÃmicas marcadas pela chegada da energia elÃtrica, que âesculhambou a moagemâ, e pela implantaÃÃo de uma usina de aÃÃcar. ModernizaÃÃes que afetaram a produÃÃo rapadureira e o mundo dos trabalhadores de um engenho, que apÃs 130 anos de moagens, tornou-se fogo morto, confirmando-se como lugar de memÃrias. / The men that made Tupinambà press sugar cane is a study of one of the most important engenhos (traditional sugar cane mills) of the Cariri region in CearÃ. A history of its workers, of their experiments in the art of making rapadura (brown sugar bricks), of their practical social relations and strategies in conflicts with their employers. Life experiences permeated by socioeconomic changes marked by the arrival of electrical power, which âscrewed up the sugar cane pressingâ, and by the installation of a modern usina (sugar producing industrial plant). Modernizations that have affected rapadura production and the world of the workers of an engenho that, after 130 years of sugar cane pressing, has become dead fire and established itself as a place for memories.
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Topologically massive Yang-Mills theory and link invariantsYildirim, Tuna 01 December 2014 (has links)
In this thesis, topologically massive Yang-Mills theory is studied in the framework of geometric quantization. This theory has a mass gap that is proportional to the topological mass m. Thus, Yang-Mills contribution decays exponentially at very large distances compared to 1/m, leaving a pure Chern-Simons theory with level number k. The focus of this research is the near Chern-Simons limit of the theory, where the distance is large enough to give an almost topological theory, with a small contribution from the Yang-Mills term. It is shown that this almost topological theory consists of two copies of Chern-Simons with level number k/2, very similar to the Chern-Simons splitting of topologically massive AdS gravity model. As m approaches to infinity, the split parts add up to give the original Chern-Simons term with level k. Also, gauge invariance of the split CS theories is discussed for odd values of k. Furthermore, a relation between the observables of topologically massive Yang-Mills theory and Chern-Simons theory is obtained. It is shown that one of the two split Chern-Simons pieces is associated with Wilson loops while the other with 't Hooft loops. This allows one to use skein relations to calculate topologically massive Yang-Mills theory observables in the near Chern-Simons limit. Finally, motivated with the topologically massive AdS gravity model, Chern-Simons splitting concept is extended to pure Yang-Mills theory at large distances. It is shown that pure Yang-Mills theory acts like two Chern-Simons theories with level numbers k/2 and -k/2 at large scales. At very large scales, these two terms cancel to make the theory trivial, as required by the existence of a mass gap.
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Organizational Form of Disease Management Programs: A Transaction Cost AnalysisChandaver, Nahush 14 November 2007 (has links)
Patient care programs such as wellness, preventive care and specifically disease management programs, which target the chronically ill population, are designed to reduce healthcare costs and improve health, while promoting the efficient use of healthcare resources, and increasing productivity. The organizational form adopted by the health plan for these programs, i.e. in-sourced vs. outsourced is an important factor in the success of these programs and the extent to which the core objectives listed above are fulfilled.
Transaction cost economics aims to explain the working arrangement for an organization and to explain why sourcing decisions were made by considering alternate organizational arrangements and comparing the costs of transacting under each. This research aims to understand the nature and sources of transaction costs, how they affect the sourcing decision of disease management and other programs, and its effect on the organization, using current industry data. Predictive models are used to obtain empirical results of the influence of each factor, and also to provide cost estimates for each organizational form available, irrespective of the form currently adopted.
The analysis of the primary data obtained by the means of a web-based survey supports and confirms the effect of transaction cost factors on these programs. This implies that in order to reap financial rewards and serve patients better, health plans must aim to minimize transaction costs and select the organizational form that best accomplishes this objective.
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Hidden Symmetries of the Open N=2 Stringlechtenf@itp.uni-hannover.de 07 July 2000 (has links)
No description available.
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Precipitation of Kraft Lignin under Alkaline ConditionsSundin, Jonas January 2000 (has links)
No description available.
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Managing Knowledge for Innovations in Wind Power Industry : A Case StudyKaratas, Bora, Macovei, Alina January 2010 (has links)
On one side Innovation, innovation systems and knowledge management are two topics have been discussed so much by scholars before. The advantages gained through knowledge management by fostering innovation which entails competitive advantage. On the other side, an emerging interest has represented the relationship between the renewable industry and environmental innovations. The oil crises and some forum discussion of environmental impact have fuelled the interest for Renewable Energy especially on wind energy. Most likely there hasn’t been any research knowledge management in wind power companies which is an emerging and terribly needs knowledge to innovate and bring more products. As a result there is a need to look more into the role of knowledge management in wind mill companies and explore how innovation can be triggered by successful knowledge management and how this process provide competitive advantage in wind power industry.
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Improving environmental relevance of a standard fish bioassayRickwood, Carrie Jane 24 July 2006
The overall objective of the research conducted and described in this thesis was to develop an environmentally relevant bioassay to assess the effects of complex effluents on a sentinel fish species. A short-term fathead minnow (FHM) reproductive bioassay was utilized to assess the effects of industrial effluents on multiple levels of biological organization (sub-organismal to population endpoints). The FHM bioassay was tested in both lab and on-site investigations using an artificial stream system. The incorporation of trophic-transfer into the bioassay was also developed to quantify the importance of contaminated food as a source of exposure. This work was conducted in two key phases. Phase I focused on testing and developing the FHM bioassay, in the lab and on-site with pulp mill effluent (PME), to firstly document response patterns and, secondly, to conduct an investigation of cause study. Phase II focused on developing the trophic-transfer system to document responses to metal mine effluent (MME) in the lab and on-site in an artificial stream system. Development of the trophic-transfer system was also conducted during this phase to compare responses to standard water-only exposures. <p>In Phase I, exposure to PME in both the lab and field studies resulted in disruptions in egg production and spawning events. By focusing on identifying response patterns I was able to determine that the effects observed were indicative of an estrogenic response. I was also able to identify a process stream that was the potential cause of responses observed after exposure to final effluent. Isolation of this process stream will assist the mill in developing approaches for future mitigation. The results from this research will also provide additional data for the environmental effects monitoring (EEM) program for pulp and paper and investigation of cause studies on a national basis. <p> In Phase II, in both the field and laboratory investigations, significant decreases in reproductive output (egg production and spawning events) were observed in the water-only system exposures. Significant decreases in hatching success and increases in deformities were observed in the trophic-transfer system only, suggesting that the combination of both food and water was important in assessing the effects on the F1 generation. Overall, the responses in the trophic-transfer system were not comparable between the lab and field studies. In the lab study, significant decreases in reproductive output occurred, compared to the field study where significant increases in egg production and spawning events occurred. In addition, the effects on the F1 generation in the field study were not as severe as those observed in the lab investigation. It was concluded that the presence of reference water and the environment within the trophic-transfer system were responsible for this reduction in toxicity. <p> Phases I and II of this research have made significant contributions to artificial stream development within Canada for the assessment of industrial effluents and their effects on aquatic biota. The results from these studies have also demonstrated that environmentally relevant testing is essential if we are to accurately assess effects on aquatic biota. Future development and application of this bioassay should be towards developing a standardized approach for not only assessing the effects of industrial effluents in a comparative manner, but also in investigation of cause studies.
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Improving environmental relevance of a standard fish bioassayRickwood, Carrie Jane 24 July 2006 (has links)
The overall objective of the research conducted and described in this thesis was to develop an environmentally relevant bioassay to assess the effects of complex effluents on a sentinel fish species. A short-term fathead minnow (FHM) reproductive bioassay was utilized to assess the effects of industrial effluents on multiple levels of biological organization (sub-organismal to population endpoints). The FHM bioassay was tested in both lab and on-site investigations using an artificial stream system. The incorporation of trophic-transfer into the bioassay was also developed to quantify the importance of contaminated food as a source of exposure. This work was conducted in two key phases. Phase I focused on testing and developing the FHM bioassay, in the lab and on-site with pulp mill effluent (PME), to firstly document response patterns and, secondly, to conduct an investigation of cause study. Phase II focused on developing the trophic-transfer system to document responses to metal mine effluent (MME) in the lab and on-site in an artificial stream system. Development of the trophic-transfer system was also conducted during this phase to compare responses to standard water-only exposures. <p>In Phase I, exposure to PME in both the lab and field studies resulted in disruptions in egg production and spawning events. By focusing on identifying response patterns I was able to determine that the effects observed were indicative of an estrogenic response. I was also able to identify a process stream that was the potential cause of responses observed after exposure to final effluent. Isolation of this process stream will assist the mill in developing approaches for future mitigation. The results from this research will also provide additional data for the environmental effects monitoring (EEM) program for pulp and paper and investigation of cause studies on a national basis. <p> In Phase II, in both the field and laboratory investigations, significant decreases in reproductive output (egg production and spawning events) were observed in the water-only system exposures. Significant decreases in hatching success and increases in deformities were observed in the trophic-transfer system only, suggesting that the combination of both food and water was important in assessing the effects on the F1 generation. Overall, the responses in the trophic-transfer system were not comparable between the lab and field studies. In the lab study, significant decreases in reproductive output occurred, compared to the field study where significant increases in egg production and spawning events occurred. In addition, the effects on the F1 generation in the field study were not as severe as those observed in the lab investigation. It was concluded that the presence of reference water and the environment within the trophic-transfer system were responsible for this reduction in toxicity. <p> Phases I and II of this research have made significant contributions to artificial stream development within Canada for the assessment of industrial effluents and their effects on aquatic biota. The results from these studies have also demonstrated that environmentally relevant testing is essential if we are to accurately assess effects on aquatic biota. Future development and application of this bioassay should be towards developing a standardized approach for not only assessing the effects of industrial effluents in a comparative manner, but also in investigation of cause studies.
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