999 resultados para Texas-Historia-Republica, 1836-1846
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Melchisedechi Thevenotii
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Colbertinus
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Biotic effects of the Chicxulub impact, the K-T event and sea level change upon planktic foraminifera were evaluated in a new core and outcrops along the Brazos River, Texas, about 1000 km from the Chicxulub impact crater on Yucatan, Mexico. Sediment deposition occurred in a middle neritic environment that shallowed to inner neritic depths near the end of the Maastrichtian. The sea level fall scoured submarine channels, which were infilled by a sandstone complex with reworked Chicxulub impact spherules and clasts with spherules near the base. The original Chicxulub impact ejecta layer was discovered 45-60 cm below the sandstone complex, and predates the K-T mass extinction by about 300,000 years. Results show that the Chicxulub impact caused no species extinctions or any other significant biotic effects. The subsequent sea level fall to inner neritic depth resulted in the disappearance of all larger (>150 mu m) deeper dwelling species creating a pseudo-mass extinction and a survivor assemblage of small surface dwellers and low oxygen tolerant taxa. The K-T boundary and mass extinction was identified 40-80 cm above the sandstone complex where all but some heterohelicids, hedbergellids and the disaster opportunistic guembelitfids went extinct, coincident with the evolution of first Danian species and the global delta(13)C shift. These data reveal that sea level changes profoundly influenced marine assemblages in near shore environments, that the Chicxulub impact and K-T mass extinction are two separate and unrelated events, and that the biotic effects of this impact have been vastly overestimated. (C) 2008 Elsevier B.V. All rights reserved.
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Resumen sobre ecología de las lenguas, historia de la lengua aragonesa y su situación actual.
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: Para estudiar la historia natural del ictus isquémico por oclusión de gran vaso de la circulación anterior se seleccionó una muestra prospectiva de pacientes con ictus agudo que no recibieron terapias de reperfusión en los que se confirmó una oclusión de gran vaso de la circulación anterior mediante Dúplex transcraneal. El 74% de los pacientes tuvo mal pronóstico. Los pacientes con oclusión de la a.carótida interna terminal y de la a.cerebral media proximal tuvieron peor pronóstico funcional y mayor porcentaje de mortalidad a los tres meses que los pacientes con oclusión de la a.cerebral media distal.
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We report the case of two patients hospitalized within a few weeks of each other and both presenting with spontaneous rupture of the esophagus whose evolution proved fatal. We take the opportunity of drawing attention to this rare and challenging disease, which is often diagnosed too late.
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Versaliis in bibliothecam regiam illatus
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Acquis en brumaire an VII (octobre-novembre 1798); cf. B.n.F., département des Manuscrits, Archives Modernes 492, registre des acquisitions du département des Manuscrits an II-an XIV (1793-1805), f. 40 "VI M DLXXXVIII A. Codex chartaceus, Parisiis emptus anno 7 seu 1798, quo continentur Platonis de Republica libri X, interprete Antonio Cassarino siculo, praemisso hujus prooemio. Is codex seculo (blanc) videtur exaratus"; — note ms. de la fin du XVIIIe s. ou du début du XIXe s. de la main de La Porte du Theil "L'exemplaire que l'on voit ici de la traduction latine des Livres de Platon De Republica a été proposé par le citoyen Du Vivier, graveur en médailles, et acquis pour la Bibliothèque, au moyen d'un échange de quelques livres de piété à prendre dans ce qu'on appeloit alors les Dépôts provisoires, authorisé par le Ministère; comme il appert par les Lettres et états conservés ans le secrétariat de la Bibliothèque" (contreplat sup.)