2,186 research outputs found

    UNA COMPRENSIÓN DEL OCIO DESDE LA TEORÍA DE LA ACCIÓN COMUNICATIVA

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    This study seeks to contribute to the understanding of leisure. For this analysis we will interpret leisure via The Theory of Communicative Action (TCA) of Jürgen Habermas (1987a and 1987b). First, we aim to understand the most important categories of the TCA, especially the concepts of Life World (LW), Money Systems (MS) and Power Systems (PS), and then, we interpret leisure via TCA. In a second step, we seek to strengthen this referential by bringing other interpretations of the object leisure, such as: leisure and work, leisure and postmodern, leisure and pleasure; showing how the Habermasian referential can contribute to the interpretation of contemporary leisure. To conclude, we bring a definition of leisure, based on all the theoretical construction presented in this study. This study is theoretical exploratory, based on understanding of the theories of leisure, the Habermasian reference (TCA) and the understanding of leisure via this reference.Este estudo visa contribuir para a compreensão do lazer. Para isso, nós interpretamos o lazer pela Teoria da Ação Comunicativa (TAC) de Jürgen Habermas (1987a;1987b). Primeiro, objetivamos compreender as categorias mais importantes da TAC, especialmente os conceitos de Mundo da Vida (MV), Sistema Dinheiro (SD) e Sistema Poder (SP) e, posteriormente, interpretamos o lazer pela TAC. Numa segunda etapa, buscamos reforçar esse referencial ao trazer outras interpretações para o objeto lazer, como: lazer e trabalho, lazer e pós-moderno, lazer e prazer; demonstrando como o referencial habermasiano pode contribuir para a interpretação do lazer contemporâneo. Para concluir, trazemos a definição de lazer, baseada em toda a construção teórica apresentada no estudo. Esse estudo é teórico exploratório, baseado na compreensão de teorias do lazer, na referência habermasiana (TAC) e na compreensão do lazer por essa referência. Ese estudio busca contribuir para la comprensión del ocio. Para este análisis, nosotros interpretamos el ocio por la Teoría de la Acción Comunicativa (TAC) de Jürgen Habermas (1987a; 1987b). Primero, procuramos comprender las categorías más importantes de la TAC, especialmente los conceptos de Mundo de la Vida (MV), Sistema Dinero (SD) y Sistema Poder (SP) y, posteriormente, interpretamos el ocio por la TAC. En una segunda etapa, intentamos fortalecer ese referencial al traer otras interpretaciones para el objeto ocio como: ocio y trabajo, ocio y pos-modernismo, ocio y placer; demostrando como el referencial habermasiano puede contribuir para la interpretación del ocio contemporáneo. Para concluir, formulamos una definición de ocio, basada en toda la construcción teórica presentada en el estudio. Este estudio es teórico exploratorio, basado en la comprensión de teorías del ocio, en la referencia habermasiana (TAC) y en la comprensión del ocio por esa referencia.

    Gas sensor array system inspired on the sensory diversity and redundancy of the olfactory epithelium

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    AbstractThis paper presents a chemical sensing system that takes inspiration from the combination of sensory diversity and redundancy at the olfactory epithelium to enhance the chemical information obtained from the odorants. The system is based on commercial MOS sensors and achieves, first, diversity trough different types of MOS along with modulation of their temperatures, and second redundancy including 12 MOS sensors for each type (12×8) combined with a high-speed multiplexing system that allows connecting 16 load resistors with each and every one of the 96 sensors in about two seconds. Exposition of the system to ethanol, ammonia, and acetone at different concentrations shows how the system is able to capture a large amount of information of the identity and the concentration of the odorant

    Recent advances in transient imaging: A computer graphics and vision perspective

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    Transient imaging has recently made a huge impact in the computer graphics and computer vision fields. By capturing, reconstructing, or simulating light transport at extreme temporal resolutions, researchers have proposed novel techniques to show movies of light in motion, see around corners, detect objects in highly-scattering media, or infer material properties from a distance, to name a few. The key idea is to leverage the wealth of information in the temporal domain at the pico or nanosecond resolution, information usually lost during the capture-time temporal integration. This paper presents recent advances in this field of transient imaging from a graphics and vision perspective, including capture techniques, analysis, applications and simulation

    Second-order Occlusion-aware Volumetric Radiance Caching

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    Accurate simulation of light transport in participating media is expensive, due to the many sca ering events. However, the band- limiting e ect of sca ering in media makes this kind of light trans- port very suitable for adaptive sampling and reconstruction tech- niques. In this work we present a novel algorithm that adaptively samples radiance from sparse points in the medium using up-to second-order occlusion-aware derivatives to determine when in- terpolation is appropriate. We derive our metric from each point’s incoming light eld. We use a proxy triangulation-based repre- sentation of the radiance re ected by the surrounding medium and geometry to e ciently compute the rst- and second-order derivatives of the radiance at the cache points while accounting for occlusion changes. We validate the quality of our approach on a self-contained two-dimensional model for light transport in media. en we show how our results generalize to practical three- dimensional scenarios, where we show much be er results while reducing computation time up to a 30% compared to previous work
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