Mémoire de maîtrise - Université du Québec à Trois-Rivières, 2003. / Bibliogr.: f. 99-100.

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La propuesta de Karl Popper (1902-1994) de presentar sus ideas sobre la música se encuentran fundamentalmente en su autobiografía intelectual Búsqueda sin Término, publicada originalmente en inglés en 1976 bajo el título: Unended Quest. Intellectual Autobiography. La decisión del autor de dar a conocer estas ideas sobre la música e incluirlas en su propia biografía tuvo, como se muestra en el texto referido, tres objetivos esenciales. El primero, ubicar en el plano de la evolución intelectual, la influencia y la importancia de la música en su formación. El segundo, mostrar en qué medida estas especulaciones sobre la música tuvieron una importancia relativa en el desarrollo de su filosofía de madurez, sobre todo en la conceptualización final de la “teoría de los tres mundos”. Y, finalmente, brindar algunas consideraciones básicas sobre el derrotero de la música contemporánea al autor (la música de vanguardia), tomando partido por una opción estética afín a sus teorías filosóficas...

The late nineteenth century is a period when cello saw rapid development. Growing up in this environment, David Popper, a cellist and a composer, dedicated to the prevalence of cello. Besides playing cello, he created many popular cello pieces and etudes Op.73 and Op.76. These works and etudes not only have a great influence on the cello performance in the late nineteenth century but also play a key role in modern cello development. Therefore I will explore the importance of Popper and the influence of his works by analyzing his works and etudes and surveying various analyses of comments on his etudes. The thesis consists of two chapters, including the introduction and conclusion. The chapter one discusses the biography and the style of his composition. Besides introducing its style, it also mentions that his style and techniques are close to Franco-Belgian school. Chapter two focuses on the analysis of his three etudes and other solo pieces, making a comparison with another two references. In the end, it offers cello works in different periods with Popper¡¦s Op.73 for practice, in order to see the applicability of Popper¡¦s etudes. From analyzing Popper¡¦s works, it shows that fingering and bowing are slightly different between now and the end of the nineteenth century since all of his etudes mark fingering and bowing. It provides references for performer while choosing etudes and raises the status of Popper in the development of cello.

Thesis (Ph. D.)--York University, 1999. Graduate Programme in Social and Political Thought. / Typescript. Includes bibliographical references (leaves 225-231). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pNQ43428.

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Thesis--Marburg. / Includes bibliographical references (p. 180-197).

Treatise (D.M.A.) Florida State University, 2007. / Advisor: Gregory Sauer, Florida State University, College of Music. Title and description from dissertation home page (viewed 8-23-2007). Document formatted into pages; contains 73 pages. Includes biographical sketch. Includes bibliographical references.

Made available in DSpace on 2017-07-10T18:26:07Z (GMT). No. of bitstreams: 1 Antonio Carlos Persegueiro.pdf: 886576 bytes, checksum: a2d8ba21181197fa4f252180e86c7700 (MD5) Previous issue date: 2014-08-01 / This Dissertation addresses the problem of language in Popper s philosophy. Our theses is that Popper (1902 1994), exponent of epistemology and philosophy of science, offers contributions aimed at the best form of use and improving language comprehension. Differently from other authors, he doesn t focus the issue on a single book, he inserts it in reviews and pronouncements, mostly associated with the theory of knowledge and related themes. So, our research activity constitutes in a theoretical gold-digging . Since the thirties, Popper adopts the kantian objectivity while guided by readings, oral and written presentations. However, it is emphasized that Popper considering, preserving and bringing to the agenda crucial problems to the human being, sustains the beginning of all rational discussion based in cosmology. Meaning, that from the questions related to the universe and the world, above all its beginning, the others are derived. In this context, we highlight the integrated conception of knowledge, in which rationalism, empiricism and metaphysical contents are dependent and complementary. His indeterministic conception of the world articulates itself with a pluralistic theses of reality: the three worlds, the material, the subjective and the objective world are real and interact linguistically. The innovation lies in the reciprocity between these worlds, which takes place therefore in the language. In the difference of the philosophy of language currently, Popper abstains himself from verifying the meaning, the definitions and the evolution (or involution) of terms. He entails to analyze the language in a way as to privilege its functions, uses, detection of mistakes and enunciative depuration, making it, therefore, reflected and enhanced. He notes that current scientific knowledge brings in it sentential orders demands, which philosophy can t escape. The work shows that Popper indicates that language in the uncontrollable instance and it is favorable to critical debate, besides being the instrument relevant to the correct inferences, denials, definitions, sentential rearrangements, favorable, finally, to the expansion of what man knows or modestly thinks to know about himself and the world presently tripartite and multi-relational. / A Dissertação aborda o problema da linguagem na filosofia popperiana. Nossa tese é de que Popper (1902-1994), expoente teórico na epistemologia e filosofia da ciência, também oferece contributos voltados ao melhor emprego, aprimoramento e compreensão da linguagem. Diferentemente de outros autores, não concentra o assunto em um único livro; insere-o em comentários e pronunciamentos atrelados, majoritariamente, à teoria do conhecimento e temáticas a ela relacionadas. Assim, nossa atividade de pesquisa se constituiu em uma espécie de garimpagem teórica. Desde os anos trinta, Popper adota a objetividade kantiana enquanto norteadora de leituras, exposições orais e escritas. No entanto, ressalva-se que ele, ao considerar, conservar e trazer à pauta problemas cruciais ao ser humano, sustenta o início de toda discussão racional alicerçado na Cosmologia. Quer dizer, das perguntas relativas ao universo e o mundo, sobretudo seus primórdios, são derivadas as demais. Neste âmbito, destaca-se a concepção integrada de conhecimento, na qual racionalismo, empirismo e conteúdos metafísicos são dependentes e complementares. Sua concepção indeterminista do mundo se articula com uma tese pluralista da realidade: os três mundos, o físico, o subjetivo e o objetivo são reais e interagem linguisticamente. A novidade reside na reciprocidade entre as dimensões da realidade, a qual ocorre, portanto, na linguagem. À diferença da filosofia da linguagem hoje corrente, Popper abstem-se de averiguar o significado, as definições e a evolução (ou involução) de termos. Enseja analisar a linguagem de modo a privilegiar suas funções, empregos, detecção de erros e depuração enunciativa, tornando-a, então, refletida e aprimorada. Assinala que, atualmente, o conhecimento científico porta demandas de ordem sentencial, as quais a Filosofia não pode se furtar. Mostramos neste trabalho como Popper sinaliza que a linguagem é a instância incontornável e propícia ao debate crítico, além de ser o instrumental pertinente às corretas inferências, negações, definições, reordenamentos sentenciais, favoráveis, enfim, à ampliação do que o homem sabe ou, modestamente, pensa saber sobre si e o mundo ora tripartido e multirelacional.

Les Ruddlesden Popper RExA2-xMnO4 (RE : La, Nd et A : Sr, Ca) ont été étudiées en tant matériaux d'électrode pour sSOFC. Les LaxSr2-xMnO4±δ (x=0.25, 0.4, 0.5, 0.6), NdxSr2-xMnO4±δ (x=0.4, 0.5) et NdxCa2-xMnO4±δ (x=0.25, 0.4, 0.5) ont été synthétisées. Les matériaux RExSr2-xMnO4±δ (RE : La, Nd) sont stables sous atmosphère réductrice avec des TECs compatibles avec ceux des électrolytes. L'étude In situ par HT-NPD du composé La0.5Sr1.5MnO4±δ (L5S15M), sous hydrogène, révèle la formation de lacunes d'oxygène sur les sites équatoriaux de la couche pérovskite. Des valeurs élevées de conductivité électrique ont été obtenues (35.6 S cm−1 sous air et 1.9 S cm−1 sous H2/Ar). Les propriétés électrochimiques de L5S15M ont été examinées par EIS. L'influence sur les performances électrochimiques à la fois de la température de frittage et de la composition de l'électrode a été étudiée dans les deux atmosphères, cathodiques et anodiques. Du côté de la réduction de l'oxygène, le transfert d'électrons entre l'électrode et l'oxygène, et l'incorporation des ions oxygène dans l'électrode sont les principales étapes limitantes. L'augmentation de la température de frittage à 1250 °C conduit à l'accumulation de Sr à l'interface GDC/YSZ. Pour l'oxydation de l'hydrogène, le transfert de charge à l'interface électrode/électrolyte, l'adsorption dissociative de l'hydrogène et la diffusion de surface ont été les étapes limitantes. Finalement, les résultats extraits des mesures par EIS ont permis de comprendre la nature des processus mis en place au sein de l'électrode, révélant que le comportement électrochimique de L5S15M pouvait être amélioré par la modification de la surface de l'électrode. / The Ruddlesden Popper RExA2-xMnO4 (RE: La, Nd and A: Sr, Ca) have been studied as electrode materials for symmetrical Solid Oxide Fuel Cells. The LaxSr2-xMnO4±δ (x=0.25, 0.4, 0.5, 0.6), NdxSr2-xMnO4±δ (x=0.4, 0.5) and NdxCa2-xMnO4±δ (x=0.25, 0.4, 0.5) were successfully synthesized. The RExSr2-xMnO4±δ materials (RE: La, Nd) are stable in reducing atmosphere with electrolyte-compatible TECs. In situ HT-NPD of La0.5Sr1.5MnO4±δ (L5S15M), under flowing hydrogen, reveals formation of oxide-ion vacancies on the equatorial sites of the perovskite layer. High electrical conductivities were obtained (35.6 S cm−1 in air and 1.9 S cm−1 in H2/Ar). Electrochemical properties of L5S15M electrode were investigated by EIS. The influence of both sintering temperature and electrode composition on the electrochemical performance was studied in both cathode and anode atmosphere. For oxygen reduction, the electron transfer between the electrode and oxygen, and the incorporation of oxygen ions into the electrode are the main rate-limiting steps. Increasing the sintering temperature to 1250°C leads to Sr accumulation at the GDC/YSZ interface. For hydrogen oxidation, charge transfer at the electrode/electrolyte interface, dissociative adsorption and surface diffusion were the limiting steps. The best compromise between sintering temperature and composition is reached for pure L5S15M electrode sintered at 1150 °C. Finally, the results extracted from EIS measurements allowed understanding the nature of processes taking place within the electrode, proposing that the electrochemical behavior of L5S15M could be improved with modification of the electrode’s surface.