Redeeming America's Fall from Grace between Utopian and Dystopian horizons: The case of George Lucas's Star Wars trilogy

Eterio Pajares, Raquel Merino y José Miguel Santamaría (eds.)

Fiabilidad de diferentes pruebas que se utilizan para evaluar el riesgo de lesión del miembro inferior en mujeres deportistas

233 p. : il. + anexo (247 p.)

Exploring Game Performance in the National Basketball Association Using Player Tracking Data

Recent player tracking technology provides new information about basketball game performance. The aim of this study was to (i) compare the game performances of all-star and non all-star basketball players from the National Basketball Association (NBA), and (ii) describe the different basketball game performance profiles based on the different game roles. Archival data were obtained from all 2013-2014 regular season games (n = 1230). The variables analyzed included the points per game, minutes played and the game actions recorded by the player tracking system. To accomplish the first aim, the performance per minute of play was analyzed using a descriptive discriminant analysis to identify which variables best predict the all-star and non all-star playing categories. The all-star players showed slower velocities in defense and performed better in elbow touches, defensive rebounds, close touches, close points and pull-up points, possibly due to optimized attention processes that are key for perceiving the required appropriate environmental information. The second aim was addressed using a k-means cluster analysis, with the aim of creating maximal different performance profile groupings. Afterwards, a descriptive discriminant analysis identified which variables best predict the different playing clusters. The results identified different playing profile of performers, particularly related to the game roles of scoring, passing, defensive and all-round game behavior. Coaching staffs may apply this information to different players, while accounting for individual differences and functional variability, to optimize practice planning and, consequently, the game performances of individuals and teams.

Análisis de los viveros de empresas en Galicia según su orientación tecnológica o generalista

[ES] El objetivo del presente trabajo consiste en analizar la contribución de los viveros de empresas a la economía gallega desglosando entre tecnológicos y generalistas, y si realmente los primeros contribuyen en mayor medida al desarrollo económico que los no tecnológicos. Para ello, se hará una revisión de la literatura que permita conceptualizar la innovación, innovación tecnológica y empresas de base tecnológica. Posteriormente se identificarán los criterios que permitan clasificar a los viveros en tecnológicos y generalistas, se analizarán sus características, propiedad, modelos de gestión, ubicaciones, requisitos de entrada, oferta de servicios, espacios ofertados, años de funcionamiento, así como se estudiarán los recursos económicos, ingresos propios y dependencia de fondos públicos, espacio físicos para los emprendedores, zonas comunes y los recursos humanos asociados por tipo de viveros. Otro apartado será analizar el perfil del emprendedor según el vivero, tipo de actividad desempeñada, género, edad, formación, dificultades para emprender. Finalmente se analizarán las contribuciones por tipo vivero a través de los indicadores de creación de empresas, generación de puestos de trabajo y sostenibilidad empresarial, usando el método de comparación de muestras independientes, con la prueba de Levene para la igualdad de varianzas, tratado con el paquete estadístico SPSS en su versión 22.0.0.0 Terminaremos con las principales conclusiones del presente trabajo.

Hartle's model within the general theory of perturbatiye matchings: the change in mass

Hartle's model provides the most widely used analytic framework to describe isolated compact bodies rotating slowly in equilibrium up to second order in perturbations in the context of General Relativity. Apart from some explicit assumptions, there are some implicit, like the "continuity" of the functions in the perturbed metric across the surface of the body. In this work we sketch the basics for the analysis of the second order problem using the modern theory of perturbed matchings. In particular, the result we present is that when the energy density of the fluid in the static configuration does not vanish at the boundary, one of the functions of the second order perturbation in the setting of the original work by Hartle is not continuous. This discrepancy affects the calculation of the change in mass of the rotating star with respect to the static configuration needed to keep the central energy density unchanged.