995 resultados para Instrumentos de sopro de metal


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Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Fisioterapia

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Relatório de Estágio Profissional apresentado à Escola Superior de Artes Aplicadas do Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ensino de Música, variante de Instrumento e Música de Conjunto.

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Tendo por base a literatura existente para instrumentos de sopro de metal, e a parca quantidade de literatura tanto em português como especificamente para eufónio, a presente dissertação apresenta uma adaptação de exercícios técnicos de trompete, trombone e tuba para eufónio, com conselhos e exercícios de respiração e buzzing. Para tal, foi criado um guia que apresenta conselhos que devem orientar a prática individual, assim como alguns exercícios para desenvolvimento de capacidades referentes às duas problemáticas previamente mencionadas. O guia foi utilizado por alunos de idades variadas e em fases distintas do percurso académico, tendo sido registada a evolução decorrente do estudo do manual. Os resultados indicam uma evolução positiva dos tópicos em estudo. Conclui-se que os conselhos e exercícios propostos permitem uma maior facilidade na prática instrumental, beneficiando o controlo da respiração e a qualidade da produção sonora.

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Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ciências Musicais

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Tese de Doutoramento em Ciências Musicais na especialidade de Ciências Musicais Históricas

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Ciências Musicais

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La organizaci??n Fundaci??n Metal de Gij??n desarrolla un Programa de Acompa??amiento al Empleo que se encuentra en su quinta edici??n INSERMETAL V. Su principal objetivo es la inserci??n laboral de las personas adscritas cuya trayectoria profesional est?? enfocada al sector Metalmec??nico. En Asturias, este sector es uno de los que m??s puestos de trabajo generan junto con el sector industrial. El Programa cuenta con distintas fases: captaci??n de usuarios, desarrollo, acciones de inicio y acogida, acciones de preparaci??n para la b??squeda de empleo y acciones de gesti??n de la inserci??n laboral. Sin embargo, no cuenta con un dise??o de evaluaci??n espec??fico, objetivo que se plantea este trabajo de fin de m??ster. Despu??s de una revisi??n de la literatura especializada sobre la Orientaci??n Profesional se comparan diversos procesos de evaluaci??n de otros Programas de Acompa??amiento al Empleo realizados por diferentes organizaciones y se elige un modelo evaluativo id??neo para INSERMETAL: el modelo CIPP (contexto, entrada, proceso, producto) de Stufflebeam. Finalmente, se definen las dimensiones, indicadores e instrumentos de recogida de informaci??n, en funci??n de dicho modelo, intentando construir una evaluaci??n que sirva de experiencia piloto para los t??cnicos encargados de llevar este Programa de Acompa??amiento en la actualidad y en futuras ediciones

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Esta dissertação tem por objetivo discutir e compreender as implicações dos padrões e controles adotados na gestão de tesouraria das pequenas empresas do setor metal- mecânico de Caxias do Sul, na formulação das estratégias financeiras destas organizações. Através de pesquisa exploratória e quantitativa, alicerçada por um questionário, tabulou-se as respostas a fim de proporcionar instrumentos de análise. Buscou-se o cruzamento de respostas e estabelecer relações de interdependência entre as hipóteses formuladas. No discorrer do texto busca-se inicialmente, fazer um breve relato dos conceitos gerais de administração financeira e justificar sua importância para as empresas. Em seguida, apresenta-se as especificidades das pequenas empresas, destacando os conceitos mais comuns de tesouraria e discutindo os conceitos de estratégia. Depois, são abordadas as possibilidades da gestão de tesouraria ser um instrumento estratégico para essas organizações. Finalmente, confrontando e analisando os resultados, pode-se identificar a forma de gestão da tesouraria e as relações que se estabelecem entre a tesouraria e a formulação das estratégias financeiras das pequenas empresas.

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Although the popularization of astronomy in the last decade and the International Year of Astronomy, celebrated in 2009, there's a great lack in respect of quality instruments for astronomical disclosure. Thinking in this research about it, we intend to recuperate and elucidate a technique long forgotten: the metal mirror amateur telescope, once was done in the first reflecting telescopes. However, with the resources available today and given the high purity of the materials, our results were better than that obtained by the pioneers. We developed and built a large aperture telescope (250 mm diameter) and very bright (focal ratio = 4.0), versatile and portable. In our study was described step by step the process to fabricate the telescope. Through its first images captured of the Moon, we can illustrate its versatility both for use in outreach events and for use in amateur astronomy, because it is a primary focus capture system and can run registration of various astronomical events

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Acid drainage influence on the water and sediment quality was investigated in a coal mining area (southern Brazil). Mine drainage showed pH between 3.2 and 4.6 and elevated concentrations of sulfate, As and metals, of which, Fe, Mn and Zn exceeded the limits for the emission of effluents stated in the Brazilian legislation. Arsenic also exceeded the limit, but only slightly. Groundwater monitoring wells from active mines and tailings piles showed pH interval and chemical concentrations similar to those of mine drainage. However, the river and ground water samples of municipal public water supplies revealed a pH range from 7.2 to 7.5 and low chemical concentrations, although Cd concentration slightly exceeded the limit adopted by Brazilian legislation for groundwater. In general, surface waters showed large pH range (6 to 10.8), and changes caused by acid drainage in the chemical composition of these waters were not very significant. Locally, acid drainage seemed to have dissolved carbonate rocks present in the local stratigraphic sequence, attenuating the dispersion of metals and As. Stream sediments presented anomalies of these elements, which were strongly dependent on the proximity of tailings piles and abandoned mines. We found that precipitation processes in sediments and the dilution of dissolved phases were responsible for the attenuation of the concentrations of the metals and As in the acid drainage and river water mixing zone. In general, a larger influence of mining activities on the chemical composition of the surface waters and sediments was observed when enrichment factors in relation to regional background levels were used.

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Friction and triboelectrification of materials show a strong correlation during sliding contacts. Friction force fluctuations are always accompanied by two tribocharging events at metal-insulator [e.g., polytetrafluoroethylene (PTFE)] interfaces: injection of charged species from the metal into PTFE followed by the flow of charges from PTFE to the metal surface. Adhesion maps that were obtained by atomic force microscopy (AFM) show that the region of contact increases the pull-off force from 10 to 150 nN, reflecting on a resilient electrostatic adhesion between PTFE and the metallic surface. The reported results suggest that friction and triboelectrification have a common origin that must be associated with the occurrence of strong electrostatic interactions at the interface.

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A versatile and metal-free approach for the synthesis of carbocycles and of heterocycles bearing seven- and eight-membered rings is described. The strategy is based on ring expansion of 1-vinylcycloalkanols (or the corresponding silyl or methyl ether) mediated by the hypervalent iodine reagent HTIB (PhI(OH)OTs). Reaction conditions can be easily adjusted to give ring expansion products bearing different functional groups. A route to medium-ring lactones was also developed.

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The presence of calcium, iron, and zinc bound to human milk secretory IgA (sIgA) was investigated. The sIgA components were first separated by two-dimensional polyacrylamide gel electrophoresis and then identified by electrospray ionization-tandem mass spectrometry (ESI MS MS). The metal ions were detected by flame atomic absorption spectrometry after acid mineralization of the spots. The results showed eight protein spots corresponding to the IgA heavy chain constant region. Another spot was identified as the transmembrane secretory component. Calcium was bound to both the transmembrane component and the heavy chain constant region, while zinc was bound to the heavy chain constant region and iron was not bound with the identified proteins. The association of a metal ion with a protein is important for a number of reasons, and therefore, the findings of the present study may lead to a better understanding of the mechanisms of action and of additional roles that sIgA and its components play in human milk.

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The research approaches recycling of urban waste compost (UWC) as an alternative fertilizer for sugarcane crop and as a social and environmental solution to the solids residuals growth in urban centers. A mathematical model was used in order to know the metal dynamics as decision support tool, aiming to establish of criteria and procedures for UWC's safe use, limited by the amount of heavy metal. A compartmental model was developed from experimental data in controlled conditions and partially checked with field data. This model described the heavy metal transference in the system soil-root-aerial portion of sugarcane plants and concluded that nickel was metal to be concern, since it takes approximately three years to be attenuated in the soil, reaching the aerial portions of the plant at high concentrations. Regarding factors such as clay content, oxide level and soil pH, it was observed that for soil with higher buffering capacity, the transfer of the majority of the metals was slower. This model may become an important tool for the attainment of laws regarding the UWC use, aiming to reduce environment contamination the waste accumulation and production costs.