The accuracy of proxies when they interpret advance directives or apply substituted decision-making criteria has been called into question. It therefore became important to know if the Andalusian Advance Directive Form (AADF) can help to increase the accuracy of proxies' predictions. The aim of this research was to compare the effect of the AADF on the accuracy of proxies' predictions about patients' preferences with that gained from informative and deliberative sessions about end-of-life decision making. A total of 171 pairs of (...) patients and their proxies were randomized to three groups. The control group's answers to the Life Sustaining Preferences Questionnaire (LSPQ) were compared with their proxies' answers to the same questionnaire. In one intervention group, the patients had already completed the AADF and given it to their proxies, who used it to guide their own answers to the LSPQ. In the second intervention (discussion) group, both patients and proxies attended two educative sessions guided by trained nurses and later filled in the LSPQ. Comparisons of accuracy and other variables showed a strong association with the discussion group. The findings show that promoting communication between patients and their proxies improves the accuracy of proxies' predictions much more than isolated use of the AADF form. (shrink)

The functional capabilities that consciousness seems to provide to biological systems can supply valuable principles in the design of more autonomous and robust technical systems. These functional concepts keep a notable similarity to those underlying the notion of operating system in software engineering, which allows us to specialize the computer metaphor for the mind into that of the operating system metaphor for consciousness. In this article, departing from these ideas and a model-based theoretical framework for cognition, we present an architectural (...) proposal for machine consciousness, called the Operative Mind. According to it, machine consciousness could be implemented as a set of services, in an operative system fashion, based on modeling of the own control architecture, that supervise the adequacy of the system architectural structure to the current objectives, triggering and managing adaptativity mechanisms. (shrink)

In this article we will argue that given certain conditions for the evolution of bi- ological controllers, these will necessarily evolve in the direction of incorporating consciousness capabilities. We will also see what are the necessary mechanics for the provision of these capabilities and extrapolate this vision to the world of artifi- cial systems postulating seven design principles for conscious systems. This article was published in the journal Neural Networks special issue on brain and conscious- ness.

América Latina ha sido desde siempre objeto de controversia en España, aunque últimamente con mayor intensidad se ha convertido en materia de utilización partidista, especialmente por parte de un bloque conservador que se esfuerza en convertir hechos y procesos latinoamericanos en elementos de confrontación política interna española. También las izquierdas hispanas tienen presente a América latina en su acción política, y padecen una elevada desinformación, mientras mantienen clichés de otra época. El artículo atiende a tres casos en la confrontación derecha/izquierda (...) de los últimos tiempos: Venezuela, ariete conservador contra el Gobierno de Pedro Sánchez; México, como excitante del nacionalismo españolista tras la exigencia de López Obrador; y, finalmente, Bolivia tras la forzada salida del poder de Evo Morales. (shrink)

This report analyses the aplicability of the principles of consciousness developed in the ASys project to three of the most relevant cognitive architectures. This is done in relation to their aplicability to build integrated control systems and studying their support for general mechanisms of real-time consciousness. To analyse these architectures the ASys Framework is employed. This is a conceptual framework based on an extension for cognitive autonomous systems of the General Systems Theory (GST). A general qualitative evaluation criteria for cognitive (...) architectures is established based upon: a) requirements for a cognitive architecture, b) the theoretical framework based on the GST and c) core design principles for integrated cognitive conscious control systems. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Diacritics 31.2 (2001) 35-48 [Access article in PDF] Film, Freud, and ParanoiaDalí and the Representation of Male Desire in An Andalusian Dog Ignacio Javier López An Andalusian Dog, one of the most universally acclaimed films in cinema history, is frequently mentioned by critics as a privileged point of reference for the Surrealist rebellion. The film remains enigmatic to this day. Criticism has concentrated on the validity and effectiveness of (...) its images to exemplify the avant-garde attack against social conventions and against the exclusive dominance of rationality in epistemology and social discourse. But this contextual approach does not take account of the script's fragmented narrative, which finds support in Freud's psychoanalytical theories and articulates a radical proposal for identity and culture. Largely neglected by critics, this narrative has been highly influential in the history of cinema. An Andalusian Dog is central to a long list of films that explore different aspects of the irrational, among them Jean Cocteau's Le sang du poète, Hunt Stromberg's The Strange Woman, Guy Debord's script Howling in Favor of the Marquis de Sade, Alfred Hitchcock's Spellbound, David Lynch's Blue Velvet, Jonathan Demme's The Silence of the Lambs, and Philip Kaufman's Quills. This impressive list underscores the need for an interpretative critical effort that accounts for the authors' proposal in the context of the Surrealist reaction to convention and tradition.Conventionally An Andalusian Dog has been viewed as a film about sexuality; I suggest that sexuality appears in the film as the pretext for a discussion of the threat sexual desire poses for male identity. In this respect, the film develops ideas that begin to appear in paintings completed by Dalí after his initial contact with Freud's works in the mid-1920s. These paintings display male identity as a fragile form of subsistence unfolding between two alternate forces, desire and fear: the desire for sexual realization and the opposed fear that sexual intercourse will conclude in disease and ultimately in death. Given the scarcity of Buñuel's production prior to 1929, I suggest that Dalí's monumental production of paintings during these years served as a preliminary visual point of reference for the design of some of the images in An Andalusian Dog.By concentrating on Dalí's work, I do not mean to suggest that he deserves exclusive credit for the film; a careful examination of Buñuel's writings clearly indicates that the movie included most of his interests as well. Nonetheless, I would like to correct what has become a common trend in the study of An Andalusian Dog. In the early 1940s, Buñuel and Dalí's friendship came to an abrupt end, and in the following years each claimed sole authorship for the ideas in the film. The conflict between the two artists contaminated critical attitudes, which were guided exclusively by Buñuel's pre-1929 writings on cinema. The recurrence of images in the filmmaker's subsequent work was employed to confirm critics' initial intuitions that the film was exclusively Buñuel's. As a result, Dalí's name became increasingly dissociated from the movie, as is illustrated by the absence of the painter's name on the cover of the English edition of the script. However, the antagonism that separated the artists more than ten years after An [End Page 35] [Begin Page 37] Andalusian Dog premiered in Paris on June 6, 1929, should not be a consideration in our critical understanding of this work. Although Buñuel directed the movie and deserves to be recognized for his undeniable input, we should not forget that he eagerly sought the painter's cooperation in writing the script. Moreover, contrary to Buñuel's later practice of frequently altering the initial script during the course of the film's production, An Andalusian Dog closely follows the original plan. This furthers the idea of the importance of Dalí's contribution, and, despite the opposing claims made by both artists in later years, it certainly appears... (shrink)

In ecology, if the considered area or space is large, the spatial distribution of individuals of a given plant species is never homogeneous; plants form different patches. The homogeneity change in space or in time (in particular, the related change-point problem) is an important research subject in mathematical statistics. In the paper, for a given data system along a straight line, two areas are considered, where the data of each area come from different discrete distributions, with unknown parameters. In the (...) paper a method is presented for the estimation of the distribution change-point between both areas and an estimate is given for the distributions separated by the obtained change-point. The solution of this problem will be based on the maximum likelihood method. Furthermore, based on an adaptation of the well-known bootstrap resampling, a method for the estimation of the so-called change-interval is also given. The latter approach is very general, since it not only applies in the case of the maximum-likelihood estimation of the change-point, but it can be also used starting from any other change-point estimation known in the ecological literature. The proposed model is validated against typical ecological situations, providing at the same time a verification of the applied algorithms. (shrink)

La contracultura es una característica social en particular muy interesante, su significado, origen e historia siempre nos retorna a contextos de quiebre de una sociedad, de rebeldía del individuo, pero sobre todo, siempre se inclina al cambio; curiosamente en casi todos los casos optan por modificar de manera positiva tal que impacta todo lo conocido en esa sociedad.