3 resultados para Carlos IV, Rey de España-Homenatges-Valencia-1789

em Universidad de Alicante


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En este artículo estudiamos la integración de los jesuitas desterrados de los territorios de Carlos III, concretamente de los que pertenecían a las Provincias de Castilla y México, a lo largo de su destierro en Bolonia. Observamos, en una primera parte, su día a día, desde que llegaron hasta su instalación definitiva y los iniciales enfrentamientos con sus hermanos: los jesuitas italianos, para analizar después, la huella devocional y personal que nos han legado y que hemos rastreado en alguno de los archivos parroquiales de esta ciudad.

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El papel específico de Mariemma (1917-2008) en su contribución a la conformación de la identidad de la danza española tras la guerra civil, exige ser estudiado desde los numerosos frentes que plasmaron su actividad como bailarina, coreógrafa y maestra. Este trabajo busca dar una primera aproximación de la recepción, el contexto formal y el repertorio en el que Mariemma proyecta su carrera artística desde España (1940), tras sus años de infancia y juventud en París (1920-1939). Con este objetivo, se utiliza una metodología que combina las entrevistas a informantes que fueron testigos cercanos de su labor, además del apoyo en fuentes documentales (hemeroteca y fílmicas) desconocidas hasta ahora. Desde los años 40, la bailarina presentó bailes regionales junto con repertorio de escuela bolera, flamenco y danza estilizada en el formato del recital de danzas. Al mismo tiempo. Mariemma hacía sus primeras incursiones en el cine con títulos como Boy (Antonio Calvache, 1940) o Donne-moi tes yeux (Sacha Guitry, 1943). Películas que han pasado desapercibidas porque pertenecen a los primeros años de la posguerra española y coinciden cronológicamente con su debut en el formato del recital de danzas. Por otra parte, son documentos con una visibilidad mínima al quedar sumergidos en las hemerotecas o supeditados a las exigencias de la gran industria cinematográfica.

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The Iterative Closest Point algorithm (ICP) is commonly used in engineering applications to solve the rigid registration problem of partially overlapped point sets which are pre-aligned with a coarse estimate of their relative positions. This iterative algorithm is applied in many areas such as the medicine for volumetric reconstruction of tomography data, in robotics to reconstruct surfaces or scenes using range sensor information, in industrial systems for quality control of manufactured objects or even in biology to study the structure and folding of proteins. One of the algorithm’s main problems is its high computational complexity (quadratic in the number of points with the non-optimized original variant) in a context where high density point sets, acquired by high resolution scanners, are processed. Many variants have been proposed in the literature whose goal is the performance improvement either by reducing the number of points or the required iterations or even enhancing the complexity of the most expensive phase: the closest neighbor search. In spite of decreasing its complexity, some of the variants tend to have a negative impact on the final registration precision or the convergence domain thus limiting the possible application scenarios. The goal of this work is the improvement of the algorithm’s computational cost so that a wider range of computationally demanding problems from among the ones described before can be addressed. For that purpose, an experimental and mathematical convergence analysis and validation of point-to-point distance metrics has been performed taking into account those distances with lower computational cost than the Euclidean one, which is used as the de facto standard for the algorithm’s implementations in the literature. In that analysis, the functioning of the algorithm in diverse topological spaces, characterized by different metrics, has been studied to check the convergence, efficacy and cost of the method in order to determine the one which offers the best results. Given that the distance calculation represents a significant part of the whole set of computations performed by the algorithm, it is expected that any reduction of that operation affects significantly and positively the overall performance of the method. As a result, a performance improvement has been achieved by the application of those reduced cost metrics whose quality in terms of convergence and error has been analyzed and validated experimentally as comparable with respect to the Euclidean distance using a heterogeneous set of objects, scenarios and initial situations.