Quantization of Presymplectic Manifolds and Circle Actions

We prove several versions of "quantization commutes with reduction" for circle actions on manifolds that are not symplectic. Instead, these manifolds possess a weaker structure, such as a spin^c structure. Our theorems work whenever the quantization data and the reduction data are compatible; this condition always holds if we start from a presymplectic (in particular, symplectic) manifold.Comment: LaTeX 2e, 28 page

Simoldes : the impact of additive manufacturing : 3D printing technology

This case study provides an overview of the automobile industry, Simoldes and the emergence of additive manufacturing technology, also known as 3D printing. The goal of this master’s degree dissertation is to conduct a strategic analysis of Simoldes taking into account the implications of incorporating additive manufacturing technology into the company´s value chain. Understanding what advantages additive manufacturing can bring to Simoldes strategy is fundamental. Different management approaches regarding this technology are provided at the end of the case. Should Simoldes not adopt this technology, or should they proactively incorporate additive manufacturing into its manufacturing process? This is the main subject to the discussed on this master’s dissertation thesis. In the teaching notes section, there is a set of questions with a proposed resolution. From this analysis, it is possible to see several benefits that additive manufacturing can bring to Simoldes. Efficiencies in time and costs are the main potential advantages. Incorporation of this technology into Simoldes manufacturing processes is the recommended outcome of this case study.Este caso de estudo mostra uma visão geral da indústria automóvel, da empresa Simoldes e do surgimento da tecnologia de fabricação aditiva, também conhecida como a impressão 3D . O objetivo desta dissertação de mestrado é a da realização de uma análise estratégica da empresa Simoldes tendo em conta as implicações da incorporação da tecnologia de fabricação aditiva na sua cadeia de valor. Entender as vantagens que esta tecnologia pode trazer para a Simoldes é um dos aspectos fundamentais. Diferentes abordagens em relação a esta tecnologia são fornecidos no final do caso. Deverá a Simoldes não adotar essa tecnologia , ou deverá incorporar de forma proactiva a fabricação aditiva nos seus processos de produção ? Este é o principal aspecto a ser discutido nesta dissertação de mestrado. Na secção de notas de ensino , há um conjunto de perguntas com uma proposta de resolução. A partir desta análise , é possível observar vários benefícios que a fabricação aditiva pode trazer para a Simoldes. Ganhos de eficiência no tempo e nos custos são as principais e potenciais vantagens. A incorporação desta tecnologia em processos de fabricação Simoldes é o resultado recomendado deste caso de estudo

Generation of hardware modules for run-time reconfigurable hybrid CPU/FPGA systems

This paper describes a tool that creates partially-reconfigurable modules from the bitstreams of individual component modules. The resulting modules are intended for use in applications that exploit partial dynamic reconfiguration. The tool is integrated in a design flow particularly aimed at dynamically-reconfigurable platform FPGAs. The corresponding design flow is described together with a basic run-time support system

Atiya-Bott theory for orbifolds and Dedkind sums

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1994.Includes bibliographical references (leaf 17).by Ana M.L.G. Canas da Silva.M.S

The archives of the Portuguese government during the residency of the court in Brazil, 1808-1822

The need to understand what happened to the dispersed and previously unsatisfactorily described records of the archives of the central Portuguese administration during 1808-1822, in order to assign a provenance to the records, was the original motivating force behind this thesis. Several aspects of the rule of Portugal and Brazil and of the process of governmental decision-making were little and fragmentarily known and there was no study on the archives of the main offices during the same period. An extensive survey of the archives was undertaken, to locate and identify series and documents of the Secretarias de Estado and other state offices, mainly in Portugal and Brazil. Private papers and British Foreign Office and some French official records were also researched. The first four chapters present aspects of the political, institutional and administrative history of Portugal and Brazil as the context for the archives. First the structure of the central administration before the invasion of Portugal by the Napoleonic armies, including the offices in Brazil, is traced. This is followed by an account of the departure of the Portuguese Court to Rio de Janeiro. The forms of government and administration in Portugal from November 1807 till September 1820 are examined next, beginning with the occupation led by Junot, the Regency and its replacement and their impact on the creation of official records. The following subchapters trace the fighting against the French and the establishment juntas of government and examine the composition and working of the governors of the Kingdom, as well as studying the British military' presence and its influence on the government during the Peninsular War. Finally the governance and the continuity of the British presence after 1814 and till September 1820 are analysed. Chapter four studies the reconstruction and working of the central government and administration in Brazil for the period between March 1808 and September 1820. Chapter five examines how offices in Portugal and Brazil created records and how these circulated and were kept. Types of documents are featured and their usage explained. The arrangement of records, including systems of classification, is analysed. Special attention is paid to the archives of the Secretaria de Estado dos Negócios do Reino and Secretaria de Estado dos Negócios Estrangeiros and also of the Gabinete do Rei and to the records of the Conselho de Estado. The frontiers between private and public records as well as procedures of secrecy within public offices are examined. The sixth chapter traces the Liberal Revolution of 1820 in Portugal, the return of King D. Joâo VI to Lisbon and the independence of Brazil in 1822. The last chapter examines the transfers of records and archives of the Portuguese central administration from 1808 to 1822, especially between Portugal and Brazil, but also with reference to the repercussions of the French occupation and the Peninsular War. Aspects such as the impact of international conflicts on archives, seizure and informational value of records, safekeeping of official records, relationship between political changes, administrative practices and the management of records, evidential value of records and official memory are studied. The main issues analysed concern the custodial history and the current location of the archives of the Secretarias de Estado and other public offices. In addition, successive Brazilian and Portuguese initiatives in the nineteenth and twentieth century to identify, describe and access records produced by these offices before the independence of Brazil in 1822, are critically examined. The conclusions reached in this thesis suggest that the main change in the records was the creation of new series: namely the contas dos governadores do Reino, in consequence of the resettlement of the state apparatus in Rio de Janeiro and of the establishment of the governors of the Kingdom in Lisbon. As these worked as an intermediary body regarding the King and secretaries of state, the ways in which records circulated were often different to those prior to 1808. The bulk of the archives of the Secretarias de Estado which were transported to Rio de Janeiro returned, but not the records produced during 1808-1822 and those relating to Brazil. The location of these records and a list of them are provided for the first time. As a result of the research and findings of this thesis, it is hoped that the arrangement of the series of records of these offices and their connected departments will be simpler and more precise and the enrichment and production of new finding aids will be a natural consequence

Antioxidant activity and phenolic composition of wine spirit resulting from an alternative ageing technology using micro-oxygenation: a preliminary study

Aim: Alternative technologies for the aging of wine spirit, as for other spirit beverages, have been developed over the past decade in order to meet consumer and industry expectations of differentiation and sustainability. Physicochemical characterisation of the resulting products has been carried out, but no previous research has evaluated their antioxidant activity. This preliminary study examined the effect of an alternative ageing technology (micro-oxygenation combined with wood staves from chestnut or Limousin oak in 1000 L stainless steel tanks) in comparison with traditional technology (250 L new barrels) on the antioxidant activity and related phenolic composition of the wine spirit. Methods and results: The wine spirits resulting from both technologies were sampled after 8, 15, 30, 180 and 365 days of ageing. Samples taken were analysed using the DPPH method, HPLC and total phenolic index. Significantly higher antioxidant activity (50.43 % vs 36.42 % DPPH inhibition), together with greater enrichment in wood-derived compounds (51.79 vs 27.72 total phenolic index), was achieved in wine spirits aged using the alternative technology than in new barrels. Moreover, chestnut wood stood out from Limousin oak wood with higher promoted antioxidant activity (62.69 % vs 21.35 % DPPH inhibition), and higher phenolic index (49.03 vs 25.67). Significant correlations between the wine spirits’ antioxidant activity, total phenolic index, ellagic acid, gallic acid, vanillin and syringaldehyde concentrations were observed, particularly in those aged using the alternative technology. Conclusion: Micro-oxygenation combined with staves resulted in higher accumulation of bioactive compounds and antioxidant activity, thus increasing wine spirit quality and adding value to the product. Significance of the study: These preliminary results show that the characteristics acquired by the wine spirit, coupled with those revealed by previous research and the promotion of faster and cheaper ageing, make the alternative technology a promising option for the industryinfo:eu-repo/semantics/publishedVersio

Elective and primary angioplasty at hospitals without on-site surgery versus with on-site surgery: results from a national registry

INTRODUCTION: Current European clinical guidelines do not restrict interventional cardiology at centers without on-site surgical backup, but disagreement still exists whether hospitals with cardiac catheterization laboratories, but without on-site cardiac surgery, should develop percutaneous coronary intervention (PCI) programs. Technical improvements in equipment and pharmacologic adjunctive therapy have increased the safety margins of diagnostic and therapeutic cardiac catheterization and more than half of the patients treated by PCI in Portugal are treated at hospitals without on-site cardiac surgery. OBJECTIVES: We set out to compare clinical outcomes of elective and primary PCI for ST-segment elevation myocardial infarction at centers without on-site cardiac surgery with those at centers with on-site cardiac surgery. METHODS: Based on the Portuguese Registry of Interventional Cardiology, we retrospectively reviewed a total of 13,235 PCI procedures performed from January 2002 to June 2006 and compared the results for 7,112 patients treated at hospitals without on-site cardiac surgery with 6,123 patients treated at hospitals with on-site cardiac surgery. RESULTS: Demographic data were similar, with a mean age of 64 (55-72) vs. 63 (54-71) years, 75% vs. 76% male and 25.0% vs. 24.2% with diabetes respectively at centers without and with on-site surgical backup. Hospital mortality at centers without and with on-site surgical backup respectively was: chronic angina: 0.3% vs. 0.3% (NS); acute coronary syndromes: 1.5% vs. 1.0% (NS); acute myocardial infarction with ST elevation and without cardiogenic shock: 4.0% vs. 5.0% (NS); cardiogenic shock: 50.9% vs. 53.4% (NS). CONCLUSIONS: Similar clinical outcomes for interventional cardiology were achieved at hospitals without on-site cardiac surgery and those with on-site cardiac surgery. In the era of coronary stents, adjunctive therapy and experienced operators, elective and primary PCI can safely be performed without on-site surgical backup

intervenção especializada de enfermagem

Em unidade de cuidados intensivos, a pessoa em situação crítica tem pouco mais de duas horas de sono diárias. O sono envolve numerosos mecanismos fisiológicos e comportamentais de grande complexidade, que têm uma ação reparadora, fundamental para a sobrevivência humana. A promoção do sono tem sido negligenciada por parte dos enfermeiros, em detrimento de intervenções de caris tecnológico. Assim, a interrupção do sono neste contexto permanece um problema substancial, pelo que é necessário aprofundar a sua compreensão nesta população vulnerável. O sono é um foco dos cuidados de enfermagem, sendo que o enfermeiro especialista em pessoa em situação crítica tem a função fundamental de cuidar a pessoa durante os processos complexos de doença, gerindo complicações, focos de instabilidade e perturbações emocionais associados à falta de qualidade do sono. Desta forma, associada ao intento de desenvolver competências especializadas, surge o interesse de compreender o sono enquanto fenómeno da pessoa em situação crítica, internada em unidade de cuidados intensivos. Apoiada na Teoria do Conforto de Kolcaba, defini como objetivo geral: desenvolver competências na área dos cuidados de enfermagem especializados à pessoa em situação crítica, com enfâse na promoção do sono. Foram igualmente definidos um conjunto de objetivos específicos que contribuíram para guiar o meu percurso de aquisição de competências. O presente trabalho é o culminar de um percurso de decorreu durante 20 semanas em contexto clínico, divididas entre uma unidade de cuidados intensivos e um serviço de urgência geral. Foi realizada pesquisa acerca da problemática em estudo, recorrendo à elaboração de uma revisão integrativa da literatura, produzida uma sessão informativa na qual apresentei uma escala de avaliação do sono, validada para a população portuguesa e contribuí para o desenvolvimento de um protocolo quiet time. Foi igualmente importante neste percurso a discussão e reflexão junto do enfermeiro orientador e pares, o acompanhamento em atividade de gestão dos cuidados, o estudo individual e a riqueza das experiências vividas. Com a aplicação das intervenções especializadas de enfermagem foi possível interferir positivamente nos resultados, com melhoria do conforto e, deste modo, com melhoria dos outcomes em saúde da pessoa em situação crítica. Simultaneamente ocorreu o desenvolvimento de competências comuns ao enfermeiro especialista e especificas do enfermeiro especialista em pessoa em situação crítica, das quais destaco as do domínio da responsabilidade profissional, ética e legal, da melhoria contínua da qualidade, do desenvolvimento das aprendizagens profissionais e da gestão dos cuidados