978 resultados para 598


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Inexistência de quorum regimental para votação. Defesa de punição para os constituintes faltosos. Exemplos de assuntos constitucionais que serão regulamentados por lei complementar ou por lei ordinária.

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La Revista del Rosario es la publicación institucional universitaria más antigua del país. Como escribió su fundador en 1905, todos los miembros de la comunidad rosarista tienen en la revista “un órgano de publicidad, donde sus escritos hallan, no hospitalidad benévola, sino casa propia en qué vivir”. En cada número “figurarán, al lado de los trabajos de los veteranos en ciencias y letras, los ensayos, inseguros aún de los jóvenes estudiantes del Colegio”; por ello, recibimos los aportes tan¬to de consagrados ensayistas, cronistas, poetas, cuentistas y demás maestros de la literatura, el periodismo y las ciencias como los de aquellos que apenas inician su camino.

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Frankfurter Latern, Berufspläne

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46 Briefe zwischen Max Horkheimer und Frederick Wild; 1 Brief von Frederick Pollock an Leo Löwenthal, 22.04.1948; 5 Empfehlungsschreiben für Max Horkheimer von Frederick Pollock, 16. u. 17.04.1948; 1 Telegramm von Frederick Pollock an Max Horkheimer, 28.06.1943; 1 Brief an Max Horkheimer von Julius Schwietering, 18.02.1948; 10 Briefe zwischen der National City Bank of New York und Max Horkheimer, 1943-1944; 1 Brief von Frederick Wild an H. P. Edelman, 27.01.1944; 1 Brief von Hilda Kahn an Frederick Wild, 02.12.1943; 1 Brief von Frederick Wild an Jane Reinheimer, 30.11.1943;

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Fil: Saravia de Grossi, María Inés. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.

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Fil: Saravia de Grossi, María Inés. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.

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The sediments recovered during DSDP Leg 92 (Site 598) include a complete 16 m.y. record of hydrothermal sedimentation along the western flank of the East Pacific Rise at 19°S. Fifty samples from this sediment column were analyzed to test the hypothesis that the REE composition of the hydrothermal component is primarily acquired via scavenging from seawater. Site 598 provides an ideal sample suite for this purpose: the sediments are lithologically "simple," primarily consisting of a mixture of hydrothermal materials and biogenous carbonates; the composition of the hydrothermal component is essentially constant through space and time; and the sediments have undergone minimal diagenetic alteration. The following observations suggest the above-stated hypothesis is true. The Ce anomaly as well as key indices of light and heavy REE behavior all show that the REE pattern of hydrothermal sediments approaches that of seawater with increasing paleodistance from the rise crest. Moreover, shale-normalized REE patterns are similar to that of seawater, varying only in absolute REE content: the REE content increases with distance from the paleo-rise crest and exhibits a pronounced increase in sediments deposited below the paleolysocline. Based on significant correlative relationships between paleodistance from the rise crest and both the concentration and mass accumulation rates (MARs) of REEs and Fe, we conclude the REEs in the hydrothermal component are derived from the interaction of seawater and Fe in the hydrothermal plume.

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Site 598 sediments were analyzed to determine the factors controlling the rare earth element (REE) geochemistry of the hydrothermal component. Site 598 provides an ideal sample suite for this purpose. Samples are lithologically "simple," primarily consisting of a hydrothermal component and biogenous carbonates. Also, the composition of the hydrothermal component appears unchanged through time or space, and the site appears to have undergone minimal diagenetic alteration. The shale-normalized REE patterns are similar to the pattern of seawater, varying only in absolute REE content. The REE content increases with distance from the paleorise crest and exhibits a pronounced increase in sediments deposited below the paleolysocline. Results presented are consistent with the following model: the source mechanism for the REE content of hydrothermal sediments is scavenging by Fe oxyhydroxides from seawater. With prolonged exposure to seawater resulting from transport far from the injection point and/or long residence at the seawatersediment interface, the absolute REE content of hydrothermal sediments increases and becomes more like seawater.