976 resultados para Wisconsin Infantry. 2d Regiment, 1898. Co. C
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A study of the life and belief of the Burmese.
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Editors: May-Nov. 1898, J. C. Abel and others.-Dec. 1898-Dec. 1906, T. H. Cummings and others.-Jan. 1907-Nov. 1924, W. A. French and others.-Dec. 1924-Mar. 1932, A. H. Beardsley.
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Mode of access: Internet.
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An account of service in the 44th regiment, Indiana volunteers.
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Pt catalyst series were prepared on mesoporous SBA-15, SBA-16, KIT-6, true liquidcrystal-templated meso-macroporous SBA-15 and a commercial, low surface area silicasupport. Support structure can be easily fabricated using surfactant templating as a mode ofstringent control on porosity, surface area and internal structure. The impact of varying Pt-support physicochemical properties was systematically studied for the selective transformation of allylic substrates under chemoselective oxidation and hydrogenation regimes, a class of reactions highly applicable to industry. Pt-based heterogeneous catalysts are well-known for their utilisation in the hydrogenation of α,β-unsaturated aldehydes,although the mode of action and lack of systematic studies in the literature fuels continuing debate into the role of Pt nanoparticles and support choice for this area. This project attempts to shed some light on several frequently asked questions in this field. Successful support synthesis and stability after Pt impregnation is confirmed through HRTEM, XRD and N2 porosimetry. Decreasing metal loading promoted dispersion values,regardless of support choice, with surface PtO2 content also showing visible enhancement.Increasing support surface area and mesoporosity exhibited the following trend on Pt dispersion augmentation; low surface area commercial silica < true liquid crystal-templated SBA-15 < SBA-15 < SBA-16 ~ KIT-6. For the selective oxidation of cinnamyl alcohol,increasing PtO2 surface population confers substantial rate enhancements, with turnover frequencies evidencing PtO2 to be the active species .In the Pt-catalysed hydrogenation of cinnamaldehyde, strong support insensitivity was observed towards catalytic activity; as turnover frequencies normalised to Pt metal reveal constant values. However, structure sensitivity to the desired unsaturated alcohol arose,evidencing the requirement of flat, extended Pt (111) facets for C=O hydrogenation. Pt/SBA-15 proved the most selective, reflecting suppressed cinnamyl alcohol hydrogenation, with DRIFTS and in-situ ATR-IR evidencing the key role of support polarity in re-orientation of cinnamaldehyde to favour di-σCO adsorption and C=O versus C=C hydrogenation. High pressures increased activity, whilst a dramatic shift in selectivity from dominant C=C (1 bar)to C=O hydrogenation (10 bar) was also observed, attributed to surface crowding and suppression of di-σCC and η4 di-σCO+πC=C cinnamaldehyde binding modes.
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Este estudio analiza la relación entre la gestión del riesgo y la vulnerabilidad en el barrio Brisas del Volador, ubicado en Ciudad Bolívar, Bogotá. Se explicó el cambio en el enfoque de estudio y manejo de los desastres a partir de la consolidación de términos relacionados a procesos sociales, como lo son la vulnerabilidad y el riesgo. Así mismo, se describieron los cambios que se han establecido en la forma de abordar el riesgo en Colombia, tanto a nivel nacional como distrital. La investigación reveló la forma como se ha generado la vulnerabilidad a partir de la intersección de distintos procesos en un asentamiento informal y como se materializan diferentes elementos para conformar la vulnerabilidad global. A partir de esto, se recopilaron las acciones implementadas en la zona de estudio desde la gestión del riesgo, se clasificaron en cada uno de los tres procesos: conocimiento, reducción o manejo del desastre y posteriormente se estudiaron. Con base en esto, se analizaron las medidas que tuvieron una incidencia en la reducción de la vulnerabilidad y los resultados que generaron.
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Dream Builder es una aplicación que te ayudará de manera cotidiana a materializar tus metas financieras a través del ahorro. Todo al alcance de un "touch"
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Reprint. Originally published: Raleigh, N.C. : Edwards, Broughton & Co., 1876.
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Mode of access: Internet.
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Sketches of the Twenty-second, Twenty-seventh and Thirty-eighth regiments are included.
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Three coordination complexes of Co(II)/Fe(II) with 4,4'-trimethylenedipyridine (bpp) and pseudohalides (SCN-, SeCN- and N-3(-)) have been synthesized. The complexes have been characterized by X-ray single crystal structure determination. They are isomorphous having 2D layers in which two independent wavy nets display parallel interwoven structures. Pseudohalide binds metal centers through N terminal and occupies the trans axial positions of the octahedral metal coordination environment. Pseudohalide remains pendant on both sides of the polymeric layer and help the stacking through hydrogen bonding. The conformation of bpp in the interpenetrated nets is observed to be dependent on the choice of pseudohalide. (C) 2008 Elsevier Inc. All rights reserved.
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Sign.: a8, b6, c8, d6, e8, f6, g8, h6, i8, k6, l8, m6, n8, o6, p8, q6, r8, s6, t8, u6, x8, y6, z8, A6, B8, C6, D8, E6, F8, G6, H8, I6, K8, L6, M8, N6, O8, P6, Q8, R6, S8, T6, U8, X6, Y8, Z6, 2A8, 2B6, 2C8, 2D-2F6
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Includes bibliographical references (p. [275]-280) and index.