970 resultados para Rivero, Atanasio, d. 1930


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Recent work on molecular phylogenetics of Scolopendridae from the Western Ghats, Peninsular India, has suggested the presence of six cryptic species of the otostigmine Digitipes Attems, 1930, together with three species described in previous taxonomic work by Jangi and Dass (1984). Digitipes is the correct generic attribution for a monophyletic group of Indian species, these being united with three species from tropical Africa (including the type) that share a distomedial process on the ultimate leg femur of males that is otherwise unknown in Otostigminae. Second maxillary characters previously used in the diagnosis of Digitipes are dismissed because Indian species do not possess the putatively diagnostic character states. Two new species from the Western Ghats that correspond to groupings identified based on monophyly, sequence divergence and coalescent analysis using molecular data are diagnosed based on distinct morphological characters. They are D. jangii and D. periyarensis n. spp. Three species named by Jangi and Dass (Digitipes barnabasi, D. coonoorensis and D. indicus) are revised based on new collections; D. indicus is a junior subjective synonym of Arthrorhabdus jonesii Verhoeff, 1938, the combination becoming Digitipes jonesii (Verhoeff, 1938) n. comb. The presence of Arthrorhabdus in India is accordingly refuted. Three putative species delimited by molecular and ecological data remain cryptic from the perspective of diagnostic morphological characters and are presently retained in D. barnabasi, D. jangii and D. jonesii. A molecularly-delimited species that resolved as sister group to a well-supported clade of Indian Digitipes is identified as Otostigmus ruficeps Pocock, 1890, originally described from a single specimen and revised herein. One Indian species originally assigned to Digitipes, D. gravelyi, deviates from confidently-assigned Digitipes with respect to several characters and is reassigned to Otostigmus, as O. gravelyi (Jangi and Dass, 1984) n. comb.

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El objetivo principal es analizar las diferentes concepciones en torno al cambio en el ámbito local y regional de San Carlos de Bariloche durante la dcada considerada paradigmática por la historiografía general, esto es la de la dcada de 1930, período que contiene la llegada de la institución que se erige como marca de identidad local, la Dirección de Parques Nacionales (en adelante, DPN). Para esto se plantean los siguientes objetivos específicos: a) Diseñar una indagación desde tres perspectivas: la del Estado Nacional, materializada en la presencia de Parques Nacionales1 y su primer presidente Exequiel Bustillo; la de la localidad barilochense, encarnada en la figura del Ingeniero Emilio Frey; y la del coronel José María Sarobe, quien trae a colación una visión regional patagónica integral a la luz de proyectos de desarrollo precedentes. b) Realizar un relevamiento de fuentes vinculadas a estas tres perspectivas que abrevan en: memorias personales, publicaciones oficiales, documentación local, prensa y publicaciones específicas en torno a la región. c) Analizar cada conjunto de fuentes. d) Integrar las distintas perspectivas a fin de avanzar hacia un análisis complejo de la problemática.

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Resumen: La presente investigación consiste en un análisis, desde la perspectiva de la economía y las instituciones, de las políticas del New Deal, implementado por Franklin D. Roosevelt en los Estados Unidos durante la crisis económica de los años 30. Para realizar dicho análisis se presentan los elementos principales de la crisis de 1930, luego se realiza un estudio de las políticas económicas aplicadas en el contexto de un marco de gran innovación institucional, y concluye evaluando las políticas expuestas, tanto desde el enfoque de sus resultados macroeconómicos como de su desempeño institucional. De esta manera el presente documento incluye un diagnóstico histórico del contexto norteamericano en aquel entonces y resalta los aspectos que motivaron a dicha administración a la aplicación de New Deal. Finalmente, se realiza un análisis del impacto macroeconómico de las políticas aplicadas. La conclusión sintetiza las principales enseñanzas de la experiencia desde la perspectiva de política económica y del diseño de la regulación, para concluir con algunas reflexiones acerca de su posible implementación en la actualidad.

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The tectogene, or crustal downbuckle, was proposed in the early 1930s by F.A. Vening Meinesz to explain the unexpected belts of negative gravity anomalies in island arcs. He attributed the isostatic imbalance to a deep sialic root resulting from the action of subcrustal convection currents. Vening Meinesz's model was initially corroborated experimentally by P.H. Kuenen, but additional experiments by D.T. Griggs and geological analysis by H.H. Hess in the late 1930s led to substantial revision in detail. As modified, the tectogene provided a plausible model for the evolution of island arcs into alpine mountain belts for another two decades. Additional revisions became necessary in the early 1950s to accommodate the unexpected absence of sialic crust in the Caribbean and the marginal seas of the western Pacific. By 1960 the cherished analogy between island arcs and alpine mountain belts had collapsed under the weight of the detailed field investigations by Hess and his students in the Caribbean region. Hess then incorporated a highly modified form of the tectogene into his sea-floor spreading hypothesis. Ironically, this final incarnation of the concept preserved some of the weaker aspects of the 1930s original, such as the ad hoc explanation for the regular geometry of island arcs.

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O estudo aqui apresentado lança seu olhar para a produção de sambas durante o período do Estado Novo. Levando em consideração a busca pela construção do novo Brasil, moderno e civilizado, e do seu cidado, colaborador com a nova ordem política e, portanto, trabalhador, são analisados os sambas que destoam das orientações governamentais, em especial, os aspectos relacionados ao trabalho. A importância dessa pesquisa consiste em contribuir para o fim da ideia de total aceitação das regras estabelecidas pelo governo de Getúlio Vargas, presidente que mais se utilizou das canções para legitimar seu governo, fortalecendo, deste modo, o posicionamento da historiografia recente que defende a existência de vozes discordantes. Além disso, poderemos também acompanhar o processo de transformação do país, da cidade do Rio de Janeiro e de elementos populares e regionais tornando-se nacionais. Para alcançar os objetivos propostos é essencial a seleção e análise de músicas compostas no período em questão, mas não perdendo de vista as outras temáticas que eram abordadas para que se forneça um panorama mais fiel da realidade da música popular nos anos de 1930 e 1940.

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This thesis seeks to explore the development of sport in Munster in the late nineteenth and early twentieth centuries by comparing developments in three counties: Cork, Tipperary and Waterford. In particular this thesis considers the development of rugby and soccer in comparative perspective across these three counties, asking what local factors impacted on their uneven development in the region and considering the extent to which the traditional model of diffusion applies to the reception of these sports in the three counties. By giving consideration to these two particular non-indigenous sports, the thesis will, through answering that question, explore ideas of cultural reception, national identity and class as expressed at local level. These themes will be explored by placing the comparative analysis of these two sports into a wider context of sporting development regionally and nationally in the period, in particular the emerging commercialisation of sport, and also the diverse sporting culture of which these two sports were a part. Utilising a wide range of archival sources from local, national and sporting newspapers, to club records, official publications and ephemera this thesis builds a picture of sport in Munster that is deeply rooted in the community, and that forms an important facet of the social world of Cork, Tipperary and Waterford from 1880-1930.