923 resultados para MINI-FLYING ROBOTS


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Mode of access: Internet.

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First ed. Cf. Briand, p. 378.

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"Under the auspices of the U.S. Department of Energy by the Los Alamos National Laboratory under contract W-7405-Eng.36"--P. [3] of cover.

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Para analizar el proceso de aprendizaje de los estudiantes en escalada se diseñó una práctica de escalada en muro (sistema abierto estilo americano) a través de un estudio comparativo entre estudiantes de dos asignaturas correlativas (Deportes Regionales Estivales 1 y 2). El objetivo es conocer la forma de resolución de problemas corporales y motrices en la escalada en el marco del mini muro como dispositivo de enseñanza. Se realizó a mitad del año académico en cada asignatura y para ello se elaboró una planilla de cotejo para registrar y comparar los resultados alcanzados. Se realizó un procesamiento cuantitativo sobre la cantidad de problemas resueltos por grupo. Se trabajó con enfoque cuali-cuantitativo para analizar las formas de resolución de los problemas motrices de los estudiantes. Se observa que los estudiantes de DRE 2 resuelven mayor cantidad de problemas en el muro que los estudiantes de DRE 1. La hipótesis que se sostiene tiene que ver con que los estudiantes más avanzados disponen de una mayor experiencia traducida en inteligencia motriz o disponibilidad corporal y motriz, que los estudiantes de la asignatura previa. Esta comunicación es parte del proyecto 04-B169 "El Andinismo en la Educación Física: Seguridad, enseñanza y formación docente". CRUB-UNCo

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Thesis (Ph.D.)--University of Washington, 2016-06

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We studied thalamic projections to the visual cortex in flying foxes, animals that share neural features believed to resemble those present in the brains of early primates. Neurones labeled by injections of fluorescent tracers in striate and extrastriate cortices were charted relative to the architectural boundaries of thalamic nuclei. Three main findings are reported: First, there are parallel lateral geniculate nucleus (LGN) projections to striate and extrastriate cortices. Second, the pulvinar complex is expansive, and contains multiple subdivisions. Third, across the visual thalamus, the location of cells labeled after visual cortex injections changes systematically, with caudal visual areas receiving their strongest projections from the most lateral thalamic nuclei, and rostral areas receiving strong projections from medial nuclei. We identified three architectural layers in the LGN, and three subdivisions of the pulvinar complex. The outer LGN layer contained the largest cells, and had strong projections to the areas V1, V2 and V3. Neurones in the intermediate LGN layer were intermediate in size, and projected to V1 and, less densely, to V2. The layer nearest to the origin of the optic radiation contained the smallest cells, and projected not only to V1, V2 and V3, but also, weakly, to the occipitotemporal area (OT, which is similar to primate middle temporal area) and the occipitoparietal area (OP, a third tier area located near the dorsal midline). V1, V2 and V3 received strong projections from the lateral and intermediate subdivisions of the pulvinar complex, while OP and OT received their main thalamic input from the intermediate and medial subdivisions of the pulvinar complex. These results suggest parallels with the carnivore visual system, and indicate that the restriction of the projections of the large- and intermediatesized LGN layers to V1, observed in present-day primates, evolved from a more generalized mammalian condition. (C) 2004 IBRO. Published by Elsevier Ltd. All rights reserved.