RESUMEN Largamente desatendida o malinterpretada, la noción de caos en la filosofía de Nietzsche es una pieza constitutiva de la particular concepción del ser que este autor habría dejado apenas esbozada. El artículo se propone elaborar este concepto en la obra nietzscheana, siguiendo algunas de las metáforas que lo iluminan. Desde allí se busca plantear los rasgos centrales de una ontologia del caos, de sesgo no metafísico, que, al afirmar el carácter acontecimental de la realidad, puede verse como precursora de (...) la ontología hermenéutica contemporánea. ABSTRACT The notion of chaos, which has long been neglected or misinterpreted, is a constitutive element of a peculiar conception of being that the philosopher only had time to outline. The objective of this article is to elaborate on this concept in Nietzschean philosophy, guided by some of the metaphors that shed light on it. This serves as the basis to set forth the main characteristics of a non-metaphysical ontology of chaos that asserts the eventful nature of reality and can thus be seen as a precursor of contemporary hermeneutic ontology. (shrink)

El Concilio III de Toledo, celebrado en mayo del año 589 a instancias del rey Recaredo, constituye un acontecimiento excepcional para la historia de España y para la historia de la Iglesia. La liturgia ocupa un lugar de gran importancia en este Concilio, pues en ella se recoge y se expresa la fe. Al mismo tiempo, la liturgia sirve para alimentar la fe, como se ve en la introducción del rezo del Credo en la celebración de la Misa, prescrito (...) por el Concilio. Otros aspectos relacionados con la liturgia se abordan en el Concilio y aquí se comentan. (shrink)

Este artículo trata de una inscripción constructiva omeya andalusí del año 387 / 4 enero 997-2 enero 998, hoy perdida, pero transmitida a través de un resumen castellano incluido en una lápida de 1259 "reparada" en 1575. Se intenta la restitución del texto árabe original y se estudian los hechos y los personajes documentados.

En este trabajo se estudia la concepción del intelecto agente del filósofo Alfonso, arzobispo de Toledo.Este pensador critica tres sistemas filosóficos: a) El averroísmo, posición de quienes identifican elintelecto agente con Dios. b) El potencialismo, opinión de quienes piensan que es una «potencia» del alma.c) El nominalismo, parecer de quienes consideran que no hay una distinción real, sino sólo de razón, entreel intelecto agente y el posible. Este autor defiende el habitualismo, hipótesis que identifica el intelectoagente con un hábito (...) innato, en concreto, el de los primeros principios.In this paper we study the conception about the agent intellect of Alfonso, Bishop of Toledo. This thinkercriticizes three systems of philosophy: a) The averroism, hypothesis which sustains the identificationbetween the agent intellect with God. b) The potentialism, opinion of those who think that the agent intellect is a potency. c) The nominalism, position of those who defend that there is no real difference between the agent and the possible intellect. This author defends the habitualism, thesis that identifies the agent intellect with an innate habit, concretely, with the habit of first principles. (shrink)

La "yesería" constituye uno de los elementos decorativos más característicos de nuestra arquitectura medieval. La imagen que hoy tenemos de La Alhambra, de la Sinagoga del Tránsito, y de tantos otros palacios y conventos, se debe a ese barato elemento constructivo que logró crear la misma apariencia de lujo de las telas o el marfil. Como hemos podido estudiar en nuestro artículo del número anterior (Al-Qantara, XX, 275-297), en el palacio de Ruy López Dávalos de Toledo se conserva uno (...) de los conjuntos más fascinantes del siglo XIV, el cual nos ha llevado a preparar estas páginas sobre la técnica de la yesería medieval. (shrink)

This paper studies an Umayyad Andalusi foundation inscription, dated 387/4 January 997-2 January 998, which is no longer extant but has been transmited in a summary in Castilian on a tablet dated 1259 and repaired in 1575. An attempt is made to deduce the original Arabic text, and the documented facts and persons are discussed.

Al sur de la iglesia San Sebastián se perciben restos en los cuales se pueden ver dos baños islámicos. El baño de Suso apareció en el curso de excavaciones arqueológicas tras haber documentado unas tenerías de época posterior. En el baño de Yuso se han conservado tres salas abovedadas de medio cañón. Además, en la sala del poniente, identificada como sala caliente, está un arco de herradura, un ábside, y la traza de un arco geminado. El contacto entre la caldera (...) y la sala caliente se ha conservado bajo la forma de un arco de medio punto. En el baño de Suso se han conservado el hipocausto y las toberas. Estos dos baños tienen muchas similitudes. Nos revelan, por primera vez en Toledo, el modo de calefacción de la sala caliente. Hasta el momento, no son conocidos en los documentos medievales. (shrink)

Corned stucco represents one of the most characteristic elements of Spanish medieval architecture. The image that we have of the Alhambra, of Samuel Halevi's synagoge —el Tránsito— and of countless other palaces and monasteries is due to this cheap construction material which could imitate the luxurious quality of silk textiles and ivories. In our previous article {Al-Qantara, XX, 275-97), we showed that Ruy López Dávalos de Toledo's palace conserves an important group of carved stuccos. In this paper, we discuss (...) its technique of fabrication. (shrink)

La crisis de representatividad de los partidos políticos de centro izquierda cuestiona la calidad de la democracia chilena y la proyección de los mismos. No obstante, constituyen referentes sociohistóricos con capacidad de adaptación a los cambios sociales y tendencias de época. Nos interesó conocer cual es el potencial de la generación de relevo de los partidos políticos de adaptarse a los cambios sociales y de representar a la nueva sociedad civil a partir del estudio de su condición generacional dentro de (...) campo político partidista. Los resultados indican que la condición intergeneracional, la visión heterocrítica frente a las formas de reproducción del poder político y la necesidad de legitimidad social favorecen la comprensión de formas distintas de hacer política que lo acercan a la nueva sociedad civil. Las prácticas políticas distintivas identificadas se asocian a la democracia de audiencia, la transversalidad de las alianzas y del territorio. (shrink)

The existence of shoulder abduction (SA) and finger extension (FE) movement capacity shortly after stroke onset is an important prognostic factor, indicating favorable functional outcome for the hemiparetic upper limb. Here we asked whether variation in lesion topography affects these two movements in a similar or a distinct way, and whether lesion impact is similar or distinct for left and right hemisphere damage. SA and FE movements were examined in 77 chronic post-stroke patients using relevant items of the Fugl-Meyer test. (...) Lesion effects were analyzed separately for left and right hemispheric damage (LHD, RHD) patient groups using voxel-based lesion-symptom mapping. In the LHD group, SA and FE were affected only by damage to the cortico-spinal tract in its passage through the corona radiata. In contrast, following RHD, these two movements were affected not only by cortico-spinal tract damage but also by damage to white matter association tracts, the putamen and the insular cortex. In both groups, voxel clusters have been found where damage affected SA and also FE, along with voxels where damage affected only one of the two movements. The capacity to execute SA and FE movements following stroke is affected significantly by damage to shared and distinct voxels in the cortico-spinal tract in LHD patients and by damage to shared and distinct voxels in a larger array of cortical and subcortical regions in RHD patients. (shrink)

The impact of stroke on motor functioning is analyzed at different levels. ‘Impairment’ denotes the loss of basic characteristics of voluntary movement. ‘Activity limitation’ denotes the loss of normal capacity for independent execution of daily activities. Recovery from impairment is accomplished by ‘restitution’ and recovery from activity limitation is accomplished by the combined effect of ‘restitution’ and ‘compensation.’ We aimed to unravel the long-term effects of variation in lesion topography on motor impairment of the hemiparetic lower limb (HLL), and gait (...) capacity as a measure of related activity limitation. Gait was assessed by the 3 m walk test (3MWT) in 67 first-event chronic stroke patients, at their homes. Enduring impairment of the HLL was assessed by the Fugl–Meyer Lower Extremity (FMA-LE) test. The impact of variation in lesion topography on HLL impairment and on walking was analyzed separately for left and right hemispheric damage (LHD, RHD) by voxel-based lesion-symptom mapping (VLSM). In the LHD group, HLL impairment tended to be affected by damage to the posterior limb of the internal capsule (PLIC). Walking capacity tended to be affected by a larger array of structures: PLIC and corona radiata, external capsule and caudate nucleus. In the RHD group, both HLL impairment and walking capacity were sensitive to damage in a much larger number of brain voxels. HLL impairment was affected by damage to the corona radiata, superior longitudinal fasciculus and insula. Walking was affected by damage to the same areas, plus the internal and external capsules, putamen, thalamus and parts of the perisylvian cortex. In both groups, voxel clusters have been found where damage affected FMA-LE and also 3MWT, along with voxels where damage affected only one of the measures (mainly 3MWT). In stroke, enduring ‘activity limitation’ is affected by damage to a much larger array of brain structures and voxels within specific structures, compared to enduring ‘impairment.’ Differences between the effects of left and right hemisphere damage are likely to reflect variation in motor-network organization and post-stroke re-organization related to hemispheric dominance. Further studies with larger sample size are required for the validation of these results. (shrink)

Despite being fairly powerful, finite non-deterministic matrices are unable to characterize some logics of formal inconsistency, such as those found between mbCcl and Cila. In order to overcome this limitation, we propose here restricted non-deterministic matrices (in short, RNmatrices), which are non-deterministic algebras together with a subset of the set of valuations. This allows us to characterize not only mbCcl and Cila (which is equivalent, up to language, to da Costa's logic C_1) but the whole hierarchy of da Costa's calculi (...) C_n. This produces a novel decision procedure for these logics. Moreover, we show that the RNmatrix semantics proposed here induces naturally a labelled tableau system for each C_n, which constitutes another decision procedure for these logics. This new semantics allows us to conceive da Costa's hierarchy of C-systems as a family of (non deterministically) (n+2)-valued logics, where n is the number of "inconsistently true" truth-values and 2 is the number of "classical" or "consistent" truth-values, for every C_n. (shrink)

From our everyday commuting to the gold medalist’s world-class performance, skillful actions are characterized by fine-grained, online agentive control. What is the proper explanation of such control? There are two traditional candidates: intellectualism explains skillful agentive control by reference to the agent’s propositional mental states; anti-intellectualism holds that propositional mental states or reflective processes are unnecessary since skillful action is fully accounted for by automatic coping processes. I examine the evidence for three psychological phenomena recently held to support anti-intellectualism and (...) argue that it supports neither traditional candidate, but an intermediate attention-control account, according to which the top-down, intention-directed control of attention is a necessary component of skillful action. Only this account recognizes both the role of automatic control in skilled action and the need for higher-order cognition to thread automatic processes together into a unified, skillful performance. This applies to bodily skillful action in general, from the world-class performance of experts to mundane, habitual action. The attention-control account stresses that, for intentions to play their role as top-down modulators of attention, agents must sustain the intention’s activation; hence, the need for reflecting throughout performance. (shrink)

Does self-control require willpower? The question cuts to the heart of a debate about whether self-control is identical with some psychological process internal to the agents or not. Noticeably absent from these debates is systematic evidence about the folk-psychological category of self-control. Here, we present the results of two behavioral studies (N = 296) that indicate the structure of everyday use of the concept. In Study 1, participants rated the degree to which different strategies to respond to motivational conflict exemplify (...) self-control. Participants distinguished between intra-psychic and externally-scaffolded strategies and judged that the former exemplified self-control more than the latter. In Study 2, participants provided various solutions to manage motivational conflict and rated their proposals on effectiveness. Participants produced substantially more intra-psychic strategies, rated them as more effective, and advised them at a higher rate than externally-scaffolded strategies. Taken together, these results suggest that while people recognize a plurality of strategies as genuine instances of self-control, purely internal exercises of self-control are considered more prototypical than their externally-scaffolded counterparts. This implies a hierarchical structure for the folk psychological category of self-control. The concept encompasses a variety of regulatory strategies and organizes these strategies along a hierarchical continuum, with purely intra-psychic strategies at the center and scaffolded strategies in the periphery. (shrink)

Researchers often claim that self-control is a skill. It is also often stated that self-control exertions are intentional actions. However, no account has yet been proposed of the skillful agency that makes self-control exertion possible, so our understanding of self-control remains incomplete. Here I propose the skill model of self-control, which accounts for skillful agency by tackling the guidance problem: how can agents transform their abstract and coarse-grained intentions into the highly context-sensitive, fine-grained control processes required to select, revise and (...) correct strategies during self-control exertion? The skill model borrows conceptual tools from ‘hierarchical models’ recently developed in the context of motor skills, and asserts that self-control crucially involves the ability to manage the implementation and monitoring of regulatory strategies as the self-control exercise unfolds. Skilled agents are able do this by means of flexible practical reasoning: a fast, context-sensitive type of deliberation that incorporates non-propositional representations into the formation and revision of the mixed-format intentions that structure self-control exertion. The literatures on implementation intentions and motivation framing offer corroborating evidence for the theory. As a surprising result, the skill of self-control that allows agents to overcome the contrary motivations they experience is self-effacing: instead of continuously honing this skill, expert agents replace it with a different one, which minimizes or prevents contrary motivations from arising in the first place. Thus, the more expert you are at self-control, the less likely you are to use it. (shrink)

Las guerras centroamericanas de la década de 1980 provocaron giros analíticos en las agendas intelectuales. En este trabajo estudio el caso de Ignacio Martín-Baró, psicólogo social y sacerdote jesuita de la Universidad Centroamericana (UCA) de El Salvador. Postulo que su propuesta de imprimir una perspectiva latinoamericana al pensamiento psicosocial derivó de la necesidad de comprender las crisis sociales surgidas con la guerra. Martín-Baró se interesó por el ‘mundo desgarrado de la vida cotidiana’ como lugar de análisis de los principales conflictos (...) sociales, entre los que destacó la tortura y la alta dosis de crueldad manifestada en el ejercicio de la violencia. Por último, analizo sus reflexiones sobre los impactos de la guerra en la salud mental, especialmente en la niñez, y subrayo su llamado de atención sobre el carácter cultural de la violencia y los desafíos que ello implicaba para la imaginación de un nuevo futuro de convivencia. Si bien fue un pensador en constante alerta sobre la importancia del análisis históricamente sustentado para comprender las crisis sociales, sus intervenciones intelectuales imaginaron un futuro de viabilidad histórica y de sostenibilidad de la vida para las mayorías con las que comprometió su quehacer. (shrink)

Resumen: Este artículo tiene por objetivo establecer las bases para una comprensión disciplinaria y epistemológica de la geopolítica, considerando su ubicación como campo de estudio y el principal debate entre la perspectiva clásica y crítica de la misma en América del Sur. En este sentido, se efectúa un abordaje histórico sobre la evolución de la geopolítica, decantando en la manera en cómo el conocimiento geopolítico se ha dado en la región mencionada, al tiempo que se señalan las dificultades y propuestas (...) de investigación en el campo señalado. Se concluye que una discusión epistemológica de la geopolítica no solamente ayudará a lograr una mejor construcción y entendimiento del conocimiento geopolítico, desde un punto de vista holístico, sino que ayudará a destacar el rol de la academia en la necesidad de ser el eje articulador de dicha discusión.: This article aims to establish the basis for a disciplinary and epistemological understanding of geopolitics, considering its location as a field of study and the main debate between the classical and critical perspective in South America. In this sense, a historical approach is made on the evolution of geopolitics, decanting in the way in which geopolitical knowledge has been given in the region while pointing out the difficulties and research proposals in the field. It concludes that an epistemological discussion of geopolitics will not only help to achieve a better construction and understanding of geopolitical knowledge, from a holistic point of view, but also highlight the role of academics to articulate the discussion. (shrink)

Chalmers and Dennett are at opposite sides of the debate on the problem of conciousness. For Chalmres, conciousness is an unquestionable fact that cannot be explained by something else. For Dennett, what exists is really multiple judgements about our conciousness. Each author accuses the other of circularity. This is only possible because the difference between the two theories is actually a difference of principles. The same opposition that we find in their theoretical apparatus we also find on their more fundamental (...) and basic premises. This feature .makes it very difficult to choose one of the two theories, while it also radicalizes the difference bewteen them. On one side we have arguments that can refute intuitions, on the other we find that that one must first scrutinize our intuitions to then create arguments based on them. Between the two extreems we meet with the old dilemma of "what came first?". However, more important than to choose sides is to show how difficult the choice is.Chalmers e Dennett se encontram em lados opostos da discussão do problema da consciência. Para Chalmers, ela é um dado indubitável que não pode ser explicada em termos de outra coisa. Para Dennett, o que existe verdadeiramente são múltiplos julgamentos sobre nossa consciência. Cada um acusa o outro de circularidade. Isto só é possível porque a diferença entre estas duas teorias é verdadeiramente uma diferença de princípios. A mesma oposição que encontramos no aparato teórico encontramos também em suas pressuposições mais básicas e fundamentais. Este fato torna extremamente difícil escolher entre as duas ao mesmo tempo em que radicaliza a diferença entre elas. De um lado temos que argumentos podem refutar intuições, de outro temos que é preciso primeiro sondar nossas intuições para depois criar argumentos a partir delas. Entre um extremo e outro nos encontramos com o velho dilema de "o que vem primeiro?". No entanto, mais importante do que escolher lados é mostrar o quanto é difícil escolher. (shrink)

Chalmers e Dennett se encontram em lados opostos da discussão do problema da consciência. Para Chalmers, ela é um dado indubitável que não pode ser explicada em termos de outra coisa. Para Dennett, o que existe verdadeiramente são múltiplos julgamentos sobre nossa consciência. Cada um acusa o outro de circularidade. Isto só é possível porque a diferença entre estas duas teorias é verdadeiramente uma diferença de princípios. A mesma oposição que encontramos no aparato teórico encontramos também em suas pressuposições mais (...) básicas e fundamentais. Este fato torna extremamente difícil escolher entre as duas ao mesmo tempo em que radicaliza a diferença entre elas. De um lado temos que argumentos podem refutar intuições, de outro temos que é preciso primeiro sondar nossas intuições para depois criar argumentos a partir delas. Entre um extremo e outro nos encontramos com o velho dilema de “o que vem primeiro?”. No entanto, mais importante do que escolher lados é mostrar o quanto é difícil escolher. (shrink)

O conceito de memes surgiu em 1976 com Richard Dawkins, como um análogo culturaldos genes. Deveria ser possível estudar a cultura através do processo de evolução por seleção natural de memes, ou seja, de comportamentos, ideias e conceitos. O filósofo Daniel Dennett utilizou tal conceito como central em sua teoria da consciência e pela primeira vez divulgou para o grande público a possibilidade de uma ciência dos memes chamada "memética". A pesquisadora Susan Blackmore(1999) foi quem mais se aproximou de uma (...) defesa completa de tal teoria. No entanto, a memética sofreu pesadas críticas. (shrink)

O Argumento dos Zumbis proposto por Chalmers, ao contrário de defender o dualismo, bane as qualia para um “mundo” onde elas não podem influenciar o julgamento que fazemos sobre nós mesmos. Por este motivo, pelo próprio argumento, podemos ser um zumbi e não saber. A isso Chalmers chamou de The Paradox of Phenomenal Judgment. O problema é que ele aceita tal paradoxo como parte de sua própria teoria. No entanto, este movimento filosófico não é aceitável e este paradoxo mina a (...) teoria de Chalmers por dentro mostrando que o argumento dos zumbis é, na verdade, um argumento contra o dualismo. Chalmers tenta resolver este problema com uma série de argumentos que tem como base o fato de que a consciência é um bruto explanandum indubitável. No entanto, tal tentativa fracassa por uma série de razões que mostram que mesmo se ele estivesse correto, ainda poderíamos ser um zumbi e não saber. (shrink)

O conceito de memes surgiu em 1976 com Richard Dawkins, como um análogo cultural dos genes. Deveria ser possível estudar a cultura através do processo de evolução por seleção natural de memes, ou seja, de comportamentos, ideias e conceitos. O filósofo Daniel Dennett utilizou tal conceito como central em sua teoria da consciência e pela primeira vez divulgou para o grande público a possibilidade de uma ciência dos memes chamada "memética". A pesquisadora Susan Blackmore (1999) foi quem mais se aproximou (...) de uma defesa completa de tal teoria. No entanto, a memética sofreu pesadas críticas e ainda não se constituiu como uma ciência, com métodos e uma base empírica bem definida. -/- The concept of memes was created by Richard Dawkins in 1976 as a cultural analogue of genes. It suggests the possibility of studying culture through a process of evolution through natural selection of memes, that is, of behaviors, ideas and concepts. The concept became central for the philosopher Daniel Dennett, who employed it in his theory of consciousness and made the possibility of a science of memes, called "memetics", known to the general public. Susan Blackmore (1999) comes closest to giving a complete defense of such a theory. However, memetics has been the target of heavy criticism, and has still not established itself as a science, with specific methods and a well-defined empirical basis. (shrink)

En los diversos ensayos que Borges dedica a asuntos filosóficos son frecuentes los que se refieren a la filosofía del tiempo. Aunque el acercamiento de Borges a la filosofía responde por lo general a un interés literario, al tratar del tiempo defiende opiniones interesantes, presentes en el actual debate sobre esta materia. En este artículo he recogido textos dispersos de Borges sobre el tiempo y los he articulado en torno a tres temas: la crítica del tiempo circular y del tiempo (...) rectilíneo; la metáfora del río del tiempo; y los conceptos de pasado, presente y futuro. Es interesante destacar en estos textos la crítica de Borges a la confusión entre idealización y realidad; su idea del tiempo como sucesión de hechos; su cercanía a una concepción relacional, no sustantiva, del tiempo; y sus advertencias sobre los peligros de identificar al tiempo como una cuarta dimensión del espacio. (shrink)

This chapter deals with the main characteristics of natural kinds, and analyzes three approaches to them. The first approach argues that natural kinds are characterized by their essential properties (in a modern, scientific sense), but encounter difficulties even on the physico-chemical level, which is where it seems to be better implemented. On the other hand, the constructivist stance, much more liberal, does not explain why certain kinds are inductively useful and not others. Third, an introduction, with comments, is provided on (...) the approach of Richard Boyd, among others, which understands natural kinds as homeostatic property clusters that accommodate to the causal structure of the world. In this view, natural kinds are usually fuzzy sets with no clear boundaries, subject to time and space limitations, and relative to some perspective. However, it solves the problems of the other approaches mentioned without forgoing a realistic conception of natural kinds. Finally, a proposal is made on how an application of Boyd’s ideas to the analysis of laws of nature can help to solve the old chestnut about the distinction between scientific laws and accidentally true generalizations. (shrink)

RESUMENEn este artículo trata de dos explicaciones de la asimetría del tiempo. En primer lugar, resumo el problema de explicar tal asimetría en términos de procesos termodinámicos, discuto dos intentos de solucionar este problema, y defiendo que, no obstante, no todos los procesos irreversibles han de ser considerados termodinámicos. En segundo lugar, rechazo que la asimetría del tiempo sea simple producto de nuestra condición de agentes intencionales. Finalmente concluyo que la explicación de la asimetría del tiempo que se basa en (...) la multitud y diversidad de los procesos naturales irreversibles sigue siendo una buena explicación.PALABRAS CLAVEPROCESOS IRREVERSIBLES, ENTROPÍA, FLECHAS DEL TIEMPO, CAUSALIDADABSTRACTIn the present work I deal with two accounts of the asymmetry of time. Firstly, I summarize the problem of explaining this asymmetry in terms of thermodynamic processes, discuss two approaches proposed to solve this problem, and defend that, nevertheless, not all irreversible processes have to be conceived as thermodynamic ones. Secondly, I reject the notion that the asymmetry of time is a mere product of our condition as intentional agents in the world. Finally, I conclude that the explanation for the asymmetry of time based on the existence of many and diverse irreversible natural processes is still a good explanation.KEY WORDSIRREVERSIBLE PROCESSES, ENTROPY, TIME ARROWS, CAUSALITY. (shrink)