Lachen macht frei : comicidad y contrapoder en Cabaret

Este artículo consta de dos partes: en la primera se hace un análisis antropológico y sociológico de lo cómico y del humor como discurso enfrentado al poder, al orden y a la jerarquía. En la segunda parte se analizan estos temas desde la perspectiva de la película Cabaret, vista como contradiscurso humorístico que ridiculiza la ideología nazi.The present article is divided in two parts. The first is an anthropological and sociological analysis about the sense of humor like a weapon against power, order and hierarchy. The second is a study of Cabaret, a film whose comical viewpoint ridicules Nazi’s ideology

Borges : entre la vindicación del límite y la seducción del caos

Este artículo analiza el tema de la entropía, es decir, la tendencia al desorden en la vida social e individual en Jorge L. Borges. Estudiamos la dicotomía entre orden y caos, o entre civilización y barbarie en algunos de sus textos como “El Inmortal” o “Historia del guerrero y la cautiva” y enfatizamos el problema del infinito que está en el origen de la entropíaThis paper studies entropy, namely, the tendency to move toward disorder in individual and social life. We apply the entropy concept to Jorge L. Borges in order to study how the order-chaos, or civilization-wilderness, dichotomy appears in Borges’ texts like “El Inmortal” or “Historia del guerrero y la cautiva”. We emphasize the problem of boundlessness, which underlies entropy

Deployable filtering architectures against large denial-of-service attacks

Denial-of-Service attacks continue to grow in size and frequency despite serious underreporting. While several research solutions have been proposed over the years, they have had important deployment hurdles that have prevented them from seeing any significant level of deployment on the Internet. Commercial solutions exist, but they are costly and generally are not meant to scale to Internet-wide levels. In this thesis we present three filtering architectures against large Denial-of-Service attacks. Their emphasis is in providing an effective solution against such attacks while using simple mechanisms in order to overcome the deployment hurdles faced by other solutions. While these are well-suited to being implemented in fast routing hardware, in the early stages of deployment this is unlikely to be the case. Because of this, we implemented them on low-cost off-the-shelf hardware and evaluated their performance on a network testbed. The results are very encouraging: this setup allows us to forward traffic on a single PC at rates of millions of packets per second even for minimum-sized packets, while at the same time processing as many as one million filters; this gives us confidence that the architecture as a whole could combat even the large botnets currently being reported. Better yet, we show that this single-PC performance scales well with the number of CPU cores and network interfaces, which is promising for our solutions if we consider the current trend in processor design. In addition to using simple mechanisms, we discuss how the architectures provide clear incentives for ISPs that adopt them early, both at the destination as well as at the sources of attacks. The hope is that these will be sufficient to achieve some level of initial deployment. The larger goal is to have an architectural solution against large DoS deployed in place before even more harmful attacks take place; this thesis is hopefully a step in that direction

Perspectiva del derecho del medio ambiente y de políticas ambientales de la Unión Europea

El artículo expone la actividad de las instituciones en el ámbito de la política europea de medio ambiente. Se analiza también el papel de la Unión Europea en materia de cambio climático y biodiversidad

Adaptive channel selection for DOA estimation in MIMO radar

We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses one-step ahead predictions of the Bayesian MSE using a parametric family of Weiss-Weinstein bounds that depend on previous measurements. We compare in simulations our strategy with adaptive policies that optimize the Bobrovsky- Zaka{\i} bound and the Expected Cram\'er-Rao bound, and show the performance for different levels of measurement noise.Comment: Submitted to the 25th European Signal Processing Conference (EUSIPCO), 201

Vicarious intergroup contact and the role of authorities in prejudice reduction

El presente estudio se centra en los efectos del contacto vicario intergrupal y en el apoyo de una figura de autoridad en la mejora de las evaluaciones del exogrupo y del metaestereotipo. Meta-estereotipo se refiere a las creencias compartidas de los miembros del endogrupo sobre cómo creen que los miembros del exogrupo les perciben. Se llevaron a cabo tres estudios preliminares para determinar las características deseables e indeseables para un buen desempeño en el baloncesto, la tarea que mejor demostraría la aplicación de estas características, y los dos grupos (equipos de baloncesto) que deberían implicarse en el contacto vicario intergrupal. En el presente estudio participaron los seguidores de uno de dichos equipos. El contacto vicario intergrupal mejoró la evaluación del exogrupo y del meta-estereotipo en comparación a una condición de no contacto. Adicionalmente, los efectos positivos del contacto vicario intergrupal aumentaron significativamente cuando fue apoyado por una figura de autoridad. Más importante todavía, nuestro estudio muestra que la mejora de la evaluación del exogrupo estuvo mediada parcialmente por los cambios en el meta-estereotipo.The present study focuses on the effect of vicarious intergroup contact and the support of an authority figure on the improvement of outgroup and meta-stereotype evaluations. Meta-stereotype refers to the shared beliefs of ingroup members about how they consider outgroup members to perceive their group. Three preliminary studies were carried out to determine desirable and undesirable characteristics for a good basketball performance, the task that best demonstrates the application of these characteristics, and the two groups (basketball teams) that should be involved in the vicarious intergroup contact. Fans of one of the basketball teams participated in the current study. Vicarious intergroup contact improved outgroup and meta-stereotype evaluations as compared with a no contact condition. In addition, the positive effects of vicarious intergroup contact significantly increased when it was supported by an authority figure. More importantly, our study also shows that the improvement of outgroup evaluation was partially mediated by changes on meta-stereotypes