International large-scale assessments have gained much attention since the beginning of the twenty-first century, influencing education legislation in many countries. This includes Spain, where they have been used by successive governments to justify education policy change. Unfortunately, there was a problem with the PISA 2018 reading scores for this country, meaning the OECD refused to initially release the results. Therefore, in this paper we attempt to estimate the likely PISA 2018 reading scores for Spain, and for each region within. The (...) figure finally published by the OECD for Spain – in terms of reading scores – was 476.5 points, which is between the lower and upper bound of the interval we find (475 to 483 test points in 2018). Additionally, we report some robustness checks for the OCED countries participating in PISA 2018, which show that the difference between the actual scores and the ones we found with the imputation methods are quite close. (shrink)

Esta obra se concentra en cuatro temas cruciales de la formación de docentes, tanto antes como durante el servicio y en la enseñanza en diferentes áreas y niveles educativos. En primer lugar, se aborda el asunto de las creencias que los docentes tienen sobre el proceso educativo, las cuales parecen influir en la práctica profesional que estos desarrollan y, por lo tanto, deberían recibir la atención explícita de los procesos de formación de docentes que deseen promover prácticas específicas. El segundo (...) tema de la obra es la relación entre la formación de docentes y la política pública que la rige. En particular, se analizan las reformas curriculares implementadas por varias licenciaturas en universidades privadas colombianas, en respuesta a reformas a la normatividad sobre las condiciones de calidad que a las que deben ajustarse todas las licenciaturas del país. El tercer tema analizado es en qué medida los docentes en educación superior van más allá del dominio de su saber disciplinar atribuyendo importancia a la pedagogía, la didáctica y la práctica reflexiva en su propia práctica docente. Finalmente, se discuten aspectos de la formación de docentes relacionados con los procesos vividos y los retos encontrados por los docentes al entrar en la profesión, su socialización en la comunidad docente, sus identidades como maestros y su motivación para ser docentes. Vale la pena señalar que las contribuciones a este libro comparten el uso de metodologías cualitativas y presentan los resultados de historias de vida, entrevistas, observaciones, y análisis documentales, entre otros. (shrink)

Discovering the influences between paintings and artists is very important for automatic art analysis. Lately, this problem has gained more importance since research studies are looking into explanations about the origin and evolution of artistic styles, which is a related problem. This paper proposes to build a multiplex artwork representation based on artistic formal concepts to gain more understanding about the aforementioned problem. We complement and built our approach on the previous notion of Creativity Implication Network. We used the recently (...) proposed MultiRank algorithm to suggest possible explanations of the dynamic of some artistic styles. Our results corroborate some well-known facts about the artists analyzed and give qualitative and quantitative information that show the possibilities and strengths of the proposed framework. We plan to expand our analysis to include more abstract artworks. Ideally, we are going to be able to validate more our results and test how our methodology could be used to generate visual artifacts too. (shrink)

The rapid increase of industry-sponsored clinical research towards developing countries has led to potentially complex ethical issues to assess. There is scarce evidence about the perception of these participants about the ethical compliance, security, and protection. We sought to evaluate and contrast the awareness and perception of participants and non-participants of industry-sponsored research trials on ethical, safety, and protection topics. A Cases-control survey conducted at twelve research sites in México. Previous and current participants of ISRT as well as non-participants with (...) one of four chronic diseases, were asked to complete the survey which focused on ethical compliance and protection issues of ISRT, and the perception of participating in a trial. A total of 604 cases and 604 controls were surveyed. Cases significantly answered that ethics committees are aware of what is happening in studies, and that medical care of industry-sponsored research trials is better than their usual medical care. The same proportion of cases and controls thought patients must receive economical reimbursement for participating in a research study. The informed consent of the pharmaceutical clinical trial was fully read by 90.4% of the cases. Most cases were satisfied or very satisfied with their overall study participation. Previous and current participants of industry-sponsored research trials have a more positive attitude towards ethics committees, the quality of medical care of the research trials, and the main purpose of economical reimbursements, when compared to non-participants. (shrink)

En este breve comentario discuto algunos aspectos de la interpretación de la epistemología de Davidson que sugiere Willian Duica en su reciente libro. Luego de una presentación somera del libro me centro en tres asuntos centrales de la interpretación de Duica. En primer lugar, argumento que su lectura de la crítica de Davidson al dualismo esquema/contenido es muy restrictiva y deja abierta la posibilidad de un realismo directo empirista. En segundo lugar, argumento que en su lectura el propio Duica se (...) compromete inadvertidamente con un empirismo de este tipo y, de este modo, su interpretación entra en tensión con el coherentismo de Davidson. Finalmente, discuto algunos aspectos de la interpretación que hace Duica de la tesis davidsoniana de la triangulación. In this short comment I discuss some aspects of William Duica's interpretation of Davidson's epistemology in a recent book. After a brief review of the book, I focus on three central issues of Duica's interpretation. First, I argue that his reading of Davidson's criticism of the scheme/content dualism is too restrictive and leaves open the possibility of an empiricist direct realism. Second, I argue in his reading Duica inadvertently commits himself to an empiricism of this sort and, as a result, his interpretation is in tension with Davidson's own coherentism. Finally, I discuss some aspects of Duica's interpretation of Davidsonian triangulation. (shrink)

There seem to be good reasons to think that there must be body representations or some kind of body content required for riding a bike or grabbing a cup of coffee. However, when I ride a bike or grab a cup of coffee, am I just representing the bike and the cup? Or am I actually also representing my body and bodily movements? The thesis of this paper is that the body not only figures in the content that guides everyday (...) activities but that it must. How is this possible? Exactly what elements of the subject’s body can be said to figure in this content? I will proceed in three steps: in the first, I bring together the conceptual resources that seem to be required; in the second, I discuss a couple of proposals about how to link the notion of affordance and the topic of bodily representations, arguing that they are misguided; finally, I propose a view according to which the body’s physical and spatial properties are an unavoidable part of the content that guides everyday activities. (shrink)

Galen conceives of wounds, fractures, and similar conditions as belonging to one of the highest genera in his taxonomy of disease. This classification is puzzling, as much from an ancient Greco-Roman perspective as from a contemporary one. In what sense are wounds and other injuries diseases? The classification appears more perplexing in light of Galen's method of conceptual analysis, which takes ordinary language use as a starting point. What, then, motivated Galen's departure from common Greek conceptions of disease? This article (...) examines the class of disease that Galen called “dissolutions of continuity” in the broader context of his system of nosological definition and classification. It concludes that Galen's analysis of wounds is driven by his theory of causation, and by his localization of disease and its mechanism inside the body, a conceptualization typical of Greco-Roman medical writing. This conclusion sheds further light on Galen's method of disease classification and the role of dissolutions within it. (shrink)

Este ensayo aborda una interpretación de la violencia, la criminalidad y la corrupción en la sociedad, a partir del estudio de un cúmulo de fuentes de diversa índole, y del análisis crítico de las interpretaciones vigentes. Por ello, se discuten, con cierto detalle, los efectos perniciosos del predominio del platonismo en la interpretación de dichas fuentes, y se propone, de la mano de Nietzsche y del pensamiento evolucionista, un abordaje del problema, que, apoyado en la perspectiva del platonismo invertido planteado (...) por el filósofo, concibe la sociedad como un ecosistema, esto es, un sistema vivo, donde cada individuo debe enfrentar el reto de sobrevivir, arreglándoselas para obtener recursos que aseguren su existencia. Así, hemos identificado diferentes modos de supervivencia y los hemos clasificado en tres categorías: 1) generadores (creadores-productores); 2) saqueadores (parásitos, predadores y oportunistas) y, 3) simbiontes (mutualistas y leoninos). (shrink)

The article deals with the constitution of a «historical people» in the conference munity that underlie to the interpretations of works of art in the conference are examined, pointing out the relationship of both with two types of different communities. In turn, they also constituted the images of ideal community of nacionalsocialism in power. This coincidence shows a deep agreement of Heidegger with governing nacionalsocialism different from a mere adhesion to the party. In this way, it is shown the parallel (...) of the question about the «new beginning» looked for by Heidegger starting from the Kehre and his political commitment for those years. (shrink)

I intend to examine the relationship of the conceptions of constituent power and of plebiscitary leader in Carl Schmitt’s political philosophy with the political sociology of Max Weber. I sustain that starting from this relationship one can better understand the nationalist background of the schmi..

Se examinan los argumentos expuestos por Thomas Hobbes contra el "necio" en su obra Leviatán relacionándolos con la dicotomía entre repúblicas por institución y repúblicas por adquisición establecida por este mismo autor. Sostenemos que la refutación del escéptico es una crítica a la concepción política desarrollada por Nicolás Maquiavelo en El príncipe e ilustrada por la noción de virtù. Aquellos argumentos revelan los límites normativos que el propio Hobbes impone al realismo usualmente atribuido a su teoría y su noción del (...) estado muestra así un carácter prescriptivo antes que descriptivo. The article discusses the arguments put forward by Thomas Hobbes against the "foole" in his book Leviathan relating them with the dichotomy between Commonwealths by institution and Commonwealths by acquisition established by that same author. We hold that the refutation of the skeptic is a criticism of the political conception developed by Niccolò Machiavelli in The Prince and illustrated by the notion of virtù. Hobbesian arguments reveal the normative limits that Hobbes himself imposes on the realism usually attributed to his theory and his notion of the state seems to be prescriptive rather than descriptive. (shrink)

Analizamos el discurso rectoral de Heidegger con el objetivo de comprender el sentido del término "nación alemana" en él. Sostenemos que el tratamiento que allí hace Heidegger de esta cuestión está profundamente relacionado con su lectura de la obra de Ernst Jünger, El Trabajador. Heidegger acepta en líneas generales el diagnóstico de Jünger sobre el mundo moderno, pero se diferencia de él precisamente en el sentido que atribuye a la nación alemana en esa situación. Analizamos el significado de la "misión (...) espiritual" que Heidegger atribuye a la nación alemana como fuerza capaz de contener el despliegue nihilista de la voluntad de poder a través de la técnica. Queremos demostrar que esa atribución intenta otorgar un nuevo significado a la nación en el horizonte histórico transformado por la "muerte de Dios" anunciada por Nietzsche y que explica el sentido de la posición política de Heidegger en 1933 y en los años inmediatamente posteriores. (shrink)

In this paper I propose an explanation for the impulsivity displayed by some of our emotional experiences. I begin by looking for such an account in the psychological and philosophical literatures. After expressing doubts regarding some approaches’ resources to account for the phenomenon at issue, I outline an account of emotional impulsivity by focusing on (1) its independence from judgment and deliberation; (2) its felt strength; and (3) its relationship to action. Following the intuition that there is a strong connection (...) between the possession of skills and the ability to entertain certain representational states, I propose that the impulsivity of some emotional experiences can be explained by their characteristic inseparability from sets of sensorimotor skills. (shrink)

Šiame straipsnyje pateikiu naują prieštaravimą Chalmerso kertiniam argumentui prieš „B tipo“ fizikalistų privilegijuotą strategiją pagrindžiant aiškinimo spragą („fenomenalių sąvokų strategija“). Aš konkrečiai teigiu, kad antrasis kertinio argumento dėmuo neteisingai interpretuoja, kodėl zombiai negali patekti į mūsų episteminę situaciją sąmonės atžvilgiu. Zombiams negali būti būdingos tokios mentalinės būklės, kurias turime mes. Jeigu visi mūsų psichologiniai atributai yra būtina mūsų episteminės situacijos sąlyga, tai zombiai negali pasitarnauti kaip antrasis dilemos dėmuo. Kalbėdamas apie kontekstą, aš visų pirma trumpai aptariu susijusį argumentą, nukreiptą prieš (...) fizikalizmą, kurį taip pat naudojo D. Chalmersas – „suvokiamumo argumentą“. Aš akcentuoju kai kuriuos svarbiausius iššūkius šiam argumentui, kartu pateikdamas ir papildomų kritikos elementų. Galiausiai, glaustai panagrinėjęs panprotopsichizmą, aš svarstau, kas mūsų lauktų, jei priimtume Chalmerso argumentus. Prieinu išvadą, kad fenomenaliųjų konceptų strategija yra patikimas paaiškinimas, kodėl zombių suvokiamumas veikiausiai nereiškia jų metafizinės galimybės. (shrink)

¿Necesitamos representaciones del cuerpo para llevar a cabo actividades como cruzar la calle, montar en bicicleta o salir por la puerta? En este trabajo se defiende la idea de que la ejecución de este tipo de acciones involucra representaciones del cuerpo con contenido no conceptual. Primero se discuten los argumentos en contra de la noción de representación del cuerpo en la acción, para extraer sus principales consecuencias. Se propone una versión delcontenido de las representaciones del cuerpo involucradas en la acción (...) cotidiana, y se finaliza con una discusión acerca de una objeción potencial, y con una reflexión sobre la relación entre contenido conceptual y contenido no conceptual. (shrink)

Adaptive optics are techniques used for processing the spatial resolution of astronomical images taken from large ground-based telescopes. In this work, computational results are presented for a modified curvature sensor, the tomographic pupil image wavefront sensor, which measures the turbulence of the atmosphere, expressed in terms of an expansion over Zernike polynomials. Convolutional neural networks are presented as an alternative to the TPI-WFS reconstruction. This technique is a machine learning model of the family of artificial neural networks, which are widely (...) known for its performance as modeling and prediction technique in complex systems. Results obtained from the reconstruction of the networks are compared with the TPI-WFS reconstruction by estimating errors and optical measurements. The reconstructed wavefronts from both techniques are compared for wavefronts of 153 Zernike modes. For this case, a detailed comparison and grid search to find the most suitable neural network is performed, searching between multi-layer perceptron, CNN and recurrent networks topologies. In general, the best network was a CNN trained for TPI-WFS reconstruction, achieving better performance than the reconstruction software from TPI-WFS in most of the turbulent profiles, but the most significant improvements were found for higher turbulent profiles that have the lowest r0 values. (shrink)

ABSTRACT There has been much discussion about the sense of ownership recently. It is a very controversial topic and even minimal consensus seems hard to achieve. In this paper we attempt to assess the prospects of achieving a better understanding of what is meant by 'sense of body ownership'. In order to do so, we begin by addressing an objection on which the notion itself might depend, coming from the distinction between 'inflationary' and 'deflationary' accounts of the sense of body (...) ownership. Once the path is clear, we will consider some influential ways of approaching the issue, which propose grounding the sense of ownership in the spatiality of bodily sensations, the affective dimension of bodily experience, and in its spatial dimension, among other things. We expect the results of our discussion will allow us to both identify the strongest candidates for an account of the sense of body ownership and to determine the challenges that must be met by competing explanations. RESUMEN Recientemente se ha discutido mucho sobre el sentido de propiedad. Se trata de un tema muy controversial, en el que incluso consensos mínimos parecen difíciles de alcanzar. En este artículo intentamos abordar las perspectivas que existen de lograr una mejor comprensión de lo que significa "sentido de propiedad del cuerpo". Para tal fin, empezamos abordando una objeción de la que podría depender la noción misma, derivada de la distinción entre explicaciones 'inflacionarias' y 'deflacionarias' del sentido de propiedad del cuerpo. Una vez se haya despejado el camino, consideraremos algunas aproximaciones reconocidas al asunto, las cuales proponen fundamentar el sentido de propiedad en la espacialidad de las sensaciones corporales, en la dimensión afectiva de la experiencia corporal, en su dimensión espacial, entre otras. Esperamos que los resultados de nuestra discusión nos permitan al mismo tiempo identificar los candidatos más fuertes para explicar el sentido de propiedad del cuerpo y determinar los retos que deben enfrentar las explicaciones en contienda. (shrink)

There seem to be good reasons to think that there must be body representations or some kind of body content required for riding a bike or grabbing a cup of coffee. However, when I ride a bike or grab a cup of coffee, am I just representing the bike and the cup? Or am I actually also representing my body and bodily movements? The thesis of this paper is that the body not only figures in the content that guides everyday (...) activities but that it must. How is this possible? Exactly what elements of the subject’s body can be said to figure in this content? I will proceed in three steps: in the first, I bring together the conceptual resources that seem to be required; in the second, I discuss a couple of proposals about how to link the notion of affordance and the topic of bodily representations, arguing that they are misguided; finally, I propose a view according to which the body’s physical and spatial properties are an unavoidable part of the content that guides everyday activities. (shrink)

En el presente artículo, en primera instancia, se presenta qué se entiende por hacer ciencia de la ética. Una vez aclarado este concepto, se plantea la pregunta central del texto: ¿Es posible hacer ciencia de la ética? Posteriormente, se expone un recorrido por la literatura académica reciente sobre Wittgenstein y la relación de la filosofía de este con la ética, con la intención de contrastar la reflexión que desarrollo. A través de esto, se expresa la imposibilidad de hacer ciencia de (...) la ética, en tanto que la ética está más allá del lenguaje proposicional necesario para hacer ciencia. Así pues, se muestran las falencias presentes en aquellos autores que intentan presentar una teoría ética. Al evitar los problemas relacionados con los intentos cientificistas de cooptar la ética, se explica si hay posibilidad de hacer ética una vez despojados de las constricciones del lenguaje proposicional. Finalmente, se concluye que existen maneras de hacer ética incluso si la ciencia no es una de ellas. (shrink)

Este estudio presenta los resultados de un análisis acústico-estadístico de las consonantes fricativas labiodentales e interdentales sonoras y áfonas del mapudungun hablado en Alto Biobío. El propósito de la presente investigación fue determinar si parámetros acústicos espectrales, parámetros de duración y parámetros de amplitud permiten distinguir el punto de articulación y la sonoridad de estos sonidos. Los resultados indicaron que los momentos espectrales, la duración, la amplitud absoluta y la amplitud normalizada permiten diferenciar entre las fricativas sonoras y áfonas; mientras (...) que la varianza, la duración y la amplitud normalizada permiten distinguir las consonantes labiodentales de las interdentales. Sin embargo, la capacidad que la varianza y la duración absoluta muestran para distinguir entre las consonantes sonoras y las áfonas se restringe a las consonantes labiodentales cuando se considera la interacción entre sonoridad con el punto de articulación y sexo del participante. Estos resultados son discutidos a la luz de la literatura sobre la utilidad de este tipo de mediciones acústicas para capturar contrastes de modo, punto y sonoridad, y en vista del estado del arte sobre las características del sistema fonético y fonológico de esta variedad del mapudungun. (shrink)

As COVID-19 emerged as a phenomenon of the total environment, and despite the intertwined and complex relationships that make humanity an organic part of the Bio- and Geospheres, the majority of our responses to it have been corrective in character, with few or no consideration for unintended consequences which bring about further vulnerability to unanticipated global events. Tackling COVID-19 entails a systemic and precautionary approach to human-nature relations, which we frame as regaining diversity in the Geo-, Bio-, and Anthropospheres. Its (...) implementation requires nothing short of an overhaul in the way we interact with and build knowledge from natural and social environments. Hence, we discuss the urgency of shifting from current to precautionary approaches to COVID-19 and look, through the lens of diversity, at the anticipated benefits in four systems crucially affecting and affected by the pandemic: health, land, knowledge and innovation. Our reflections offer a glimpse of the sort of changes needed, from pursuing planetary health and creating more harmonious forms of land use to providing a multi-level platform for other ways of knowing/understanding and turning innovation into a source of global public goods. These exemplary initiatives introduce and solidify systemic thinking in policymaking and move priorities from reaction-based strategies to precautionary frameworks. (shrink)

ABSTRACT The focus of this essay is Kant's argument in the Groundwork for the Metaphysics of Morals III that regarding oneself as rational implies regarding oneself as free. After setting out an interpretation of how the argument is meant to go, I argue that Kant fails to show that regarding oneself as free is incompatible with accepting universal causal determinism. However, I suggest that the argument succeeds in showing that regarding oneself as rational is inconsistent with accepting universal causal determinism (...) if one accepts a certain, plausible view of the explanation of events. RESUMEN El ensayo se enfoca en el argumento de Kant en la Fundamentación de la metafísica de las costumbres III según el cual considerarse racional implica verse a uno mismo como libre. Se interpreta la forma en que debe entenderse el argumento y se afirma que Kant no logra demostrar que considerarse libre es incompatible con la aceptación del determinismo casual universal. No obstante, se sugiere que el argumento sí logra demostrar que considerarse a uno mismo como racional es incompatible con la aceptación del determinismo casual universal, si se acepta una cierta versión plausible de la explicación de los eventos. (shrink)

In line with recent efforts to empirically study the folk concept of weakness of will, we examine two issues in this paper: (1) How is weakness of will attribution [WWA] influenced by an agent’s violations of best judgment and/or resolution, and by the moral valence of the agent’s action? (2) Do any of these influences depend on the cognitive dispositions of the judging individual? We implemented a factorial 2x2x2 between–subjects design with judgment violation, resolution violation, and action valence as independent (...) variables, and measured participants’ cognitive dispositions using Frederick’s Cognitive Reflection Test [CRT]. We conclude that intuitive and reflective individuals have two different concepts of weakness of will. The study supports this claim by showing that: a) the WWA of intuitive subjects is influenced by the action’s (and probably also the commitment’s) moral valence, while the WWA of reflective subjects is not; b) judgment violation plays a small role in the WWA of intuitive subjects, while reflective subjects treat resolution violation as the only relevant trait. Data were collected among students at two different universities. All subjects (N=710) answered the CRT. A three-way ANOVA was first conducted on the whole sample and then on the intuitive and reflective groups separately. This study suggests that differences in cognitive dispositions can significantly impact the folk understanding of philosophical concepts, and thus suggests that analysis of folk concepts should take cognitive dispositions into account. (shrink)

En este artículo analizo la interpretación de Hegel de la filosofía política platónica (particularmente la República) en determinados pasajes de dos obras puntuales: los Fundamentos de la filosofía del derecho y las Lecciones sobre Platón. Considero dos ejes específicos de análisis: la propiedad privada y la libertad subjetiva. El objetivo del artículo es señalar la relación que Hegel establece con Platón o, al menos, con República. Muestro que, en realidad, en este diálogo existen ciertos matices con respecto a los dos (...) ejes mencionados; estos matices implican diferencias de análisis respecto de la lectura hegeliana. (shrink)

Resumen: El objetivo del presente escrito es analizar una confusión epistemológica recurrente en algunas corrientes filosóficas contemporáneas: el sociologismo, que consiste en establecer juicios acerca de la justificación de la ciencia a partir de sus orígenes históricos. En particular, me interesa revisar sus variantes relativistas, que, en sus formas más radicales, llegan a identificar la pretensión de racionalidad y objetividad de la ciencia con los mecanismos de poder. Mediante el análisis argumentativo, mostraré los errores en los que incurren estas vertientes.: (...) This article analyzes a recurrent epistemological confusion in some contemporary philosophical trends, namely, sociologism, which consists on the establishment of judgements on the justification of science based on its historical origins. Specifi cally, I am interested in reviewing its relativistic variants, which, in its most radical forms, get to identify the pretension of rationality and objectivity of science with power mechanisms. By means of an argumentative analysis, I will show the errors these proposals commit. (shrink)

Se reseña la obra Adentro de Nadie, del escritor mexicano Jorge Martín Bocanegra, resaltando los aspectos literarios dentro de la poesía contemporánea, invitando al lector adentrarse en el mundo de las letras desde una perspectiva única, donde los tópicos de su poesía son los oscuros caminos del ciberespacio, las ciudades devoradoras de hombres, las redes sociales chupasangre, las lenguas de los hombres callados, los medios de comunicación infames narrando el trágico periplo de los migrantes y la violencia como una manzana (...) de las Hespérides. (shrink)

Dentro de toda la obra de Vico subyace -a pesar de su tensión con Descartes y de sus pretensiones jurídicas y filológicas- una vigorosa preocupación por lo humano. Esta preocupación recorre desde la tesis del conocer por causas de la ciencia hasta la afirmación de la comprensión como forma específica del conocimiento histórico.In the whole work of Vico can be found -despite his tension with Descartes and his juridical and philological intentions- a strong concern for humanity. This concern is visible (...) from the thesis of scientific knowledge by causes to the statement of comprehension as the specific method of historical knowledge. (shrink)

Axel Honneth is, without a doubt, heir to a tradition of social and political thought that was decisive in the Marxist debates of the 20th century; critical theory. As an outstanding disciple of Jürgen Habermas, he denounced a sociological deficit in his teacher's theory of communicative action, while continuing a certain recovery of Hegel that Habermas made evident in his text: Work and interaction: notes on Hegelian philosophy of the Jena period (1986). Honneth deepened the Hegelian reading of Habermas, going (...) from mere reading notes to a system of understanding the social based on recognition and ethics. (shrink)

Reseña de Mársico, Platón. Alcibíades Mayor.

In this contribution, we use the connection between stable polynomials and orthogonal polynomials on the real line to construct sequences of Hurwitz polynomials that are robustly stable in terms of several uncertain parameters. These sequences are constructed by using properties of orthogonal polynomials, such as the well-known three-term recurrence relation, as well as by considering linear combinations of two orthogonal polynomials with consecutive degree. Some examples are presented.

Este trabajo presenta la traducción de un diálogo atribuido a Platón que los estudiosos concuerdan en clasificar como apócrifo: Axíoco. Pese al carácter espurio de la obra, las temáticas desarrolladas, que a partir del interrogante de la muerte abordan cuestiones antropológicas, éticas y metafísicas, muestran una evidente vocación filosófica. Asimismo, los vínculos estructurales, conceptuales y hasta ciertas referencias intertextuales con escuelas consolidadas como el platonismo y el epicureísmo hacen que el diálogo se inscriba en una rica tradición de pensamiento cuya (...) vigencia resulta indudable. (shrink)

Aberrations introduced by the atmospheric turbulence in large telescopes are compensated using adaptive optics systems, where the use of deformable mirrors and multiple sensors relies on complex control systems. Recently, the development of larger scales of telescopes as the E-ELT or TMT has created a computational challenge due to the increasing complexity of the new adaptive optics systems. The Complex Atmospheric Reconstructor based on Machine Learning is an algorithm based on artificial neural networks, designed to compensate the atmospheric turbulence. During (...) recent years, the use of GPUs has been proved to be a great solution to speed up the learning process of neural networks, and different frameworks have been created to ease their development. The implementation of CARMEN in different Multi-GPU frameworks is presented in this paper, along with its development in a language originally developed for GPU, like CUDA. This implementation offers the best response for all the presented cases, although its advantage of using more than one GPU occurs only in large networks. (shrink)