981 resultados para Roa, Armando


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Fil: Nazar, Jorge. Universidad Nacional de Cuyo. Facultad de Ciencias Médicas. Área de Psiquiatría

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Discurso proferido durante a 1ª Sessão da Câmara dos Deputados na nova capital do país. Discorre sobre o problema da falta d'água no seu apartamento de Brasília e ainda solicita providênciar local para funcionamento da Comissão de Valorização Econômica da Amazônia.

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2 caras (manuscritas) ; 215x145mm. Ubicación: Caja 1 - Carpeta 22

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This dissertation will cover several disparate topics, with the overarching theme centering on the investigation of organometallic C-H activation and hydrocarbon transformation and upgrading. Chapters 2 and 3 discuss iridium and rhodium analogues of the Shilov cycle catalyst for methane to methanol oxidation, and Chapter 4 on the recently discovered ROA mechanistic motif in catalysts for various alkane partial oxidation reactions. In addition, Chapter 5 discusses the mechanism of nickel pyridine bisoxazoline Negishi catalysts for asymmetric and stereoconvergent C-C coupling, and the appendices discuss smaller projects on rhodium H/D exchange catalysts and DFT method benchmarking.

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This series will include all those people who, by means of their contributions, great and small, played a part in the consolidation of ichthyology in Argentina. The general plan of this work consists of individual factsheets containing a list of works by each author, along with reference bibliography and, whenever possible, personal pictures and additional material. The datasheets will be published primarily in chronological order, although this is subject to change by the availability of materials for successive editions. This work represents another approach for the recovery and revalorization of those who set the foundations of Argentine ichthyology while in diverse historical circumstances. I expect this to be the beginning of a major work that achieves the description of such a significant part of the history of natural sciences in Argentina.

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An analysis of high-resolution Anglo-Australian Telescope (AAT)/University College London Echelle Spectrograph (UCLES) optical spectra for the ultraviolet (UV)-bright star ROA 5701 in the globular cluster omega Cen (NGC 5139) is performed, using non-local thermodynamic equilibrium (non-LTE) model atmospheres to estimate stellar atmospheric parameters and chemical composition. Abundances are derived for C, N, O, Mg, Si and S, and compared with those found previously by Moehler et al. We find a general metal underabundance relative to young B-type stars, consistent with the average metallicity of the cluster. Our results indicate that ROA 5701 has not undergone a gas-dust separation scenario as previously suggested. However, its abundance pattern does imply that ROA 5701 has evolved off the asymptotic giant branch (AGB) prior to the onset of the third dredge-up.

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Programas, proyectos y red de portales

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Tesis (Especialidad en Pediatría Médica). U. A. N. L.

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Tesis (Maestría en Ciencias Odontológicas con Especialidad en Ortodoncia) U.A.N.L.

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Tesis (Maestría en Ciencias de la Ingeniería Eléctrica con Especialidad en Potencia) - U.A.N.L, 1997

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Tesis (Maestría en la Enseñanza de las Ciencias con Especialidad en Biología) U.A.N.L.

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UANL

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UANL