Exposed in 1948, within his masterpiece on the scope and limits of human knowledge, the epistemological tenets that Bertrand Russell regarded as fundamental elements in the construction of scientific knowledge, are still worthy of a detailed discussion today. Given the excellence of the author, it will not be surprising to see that Russell's gnoseologic postulates, even for the present scientific view, address some of the most controversial questions still to be solved in the theory of knowledge.
El anuncio en julio de 2012 de los primeros indicios experimentales sobre la existencia del bosón de Higgs, reavivó el interés del secular debate sobre el significado de conceptos como el vacío y los campos físicos. La evolución de sus interpretaciones revela mutaciones profun- das en el trasfondo filosófco de nuestra visión de la naturaleza. Especialmente por cuanto el controvertido papel de las rupturas de simetría se ha añadido a las discusiones sobre las teorías de unificación y la estructura fundamental (...) de la materia. (shrink)
Natural selection is one of the fundamental keys of evolutionary biology, which is as much as saying of almost all life sciences. However, the effort to assess its true meaning has been involved in endless controversies almost from the beginning. The rethinking of natural selection through an abstract scheme with three ingredients - −population, environment and interaction between them− could significantly contribute to clarify this debate.
A lo largo del siglo XX, y en especial a partir del desarrollo de la física cuántica y de la dinámica no lineal, los conceptos de incertidumbre, impredictibilidad e indeterminación han sido fuente de gran confusión, pese a sus distintos significados y aplicaciones. Un somero análisis de las teorías que los emplean permite distinguirlos con suficiente claridad.
La termodinámica, se desarrolló en gran medida bajo el impulso de la Revolución Industrial, que ayudó a afianzar metodológicamente las seculares investigaciones sobre el calor y la temperatura. Como tal desarrollo se produjo a la sombra de la triunfante mecánica clásica —cuyos referentes físicos son notablemente distintos— y a causa de la carencia de herramientas formales adecuadas, durante mucho tiempo se admitió sin discusión que esta ciencia había de limitarse a los sistemas en equilibrio o muy cercanos a él. En (...) el presente artículo se exponen tanto el desarrollo histórico como las premisas intelectuales de semejante opción epistemológica, señalando el cambio de perspectiva ocurrido en la segunda mitad del siglo XX. (shrink)
El carácter fundamentalmente probabilista de la teoría cuántica cuestionó el realismo como filosofía básica de la ciencia, si bien ciertas interpretaciones instrumentalistas podrían no amenazar por sí solas la existencia de un mundo exterior e independiente de nuestra conciencia. La falta de un valor definido para tales magnitudes antes de la medición alentó la suposición de que tales valores “no existen” antes de la medida. Una reinterpretación de nuestras ideas sobre las magnitudes físicas, considerándolas formalmente representadas por conjuntos de valores (...) en lugar de valores numéricos concretos, ayudaría a disipar toda sombra de irrealidad física. (shrink)
El carácter fundamentalmente probabilista de la medición de las magnitudes cuánticas, alentó la suposición de que tales valores “no existen” antes de la medida. Una reinterpretación de nuestras ideas sobre las magnitudes físicas, considerándolas formalmente representadas por distribuciones de valores en lugar de valores numéricos concretos, ayudaría a disipar toda sombra de irrealidad física.
En esta obra monumental de Jesper Lützen sobre la mecánica de Heinrich Hertz encontramos una magnífica exposición de la vida y obra de este insigne físico germano. Un interesante relato de las influencias intelectuales que modelaron su pensamiento científico, culmina con un exhaustivo análisis de la reformulación de la mecánica clásica que Hertz planteó poco antes de su prematuro fallecimiento.
Since the very begining of quantum theory there started a debate on the proper role of space and time in it. Some authors assumed that space and time have their own algebraic operators. On that basis they supposed that quantum particles had “coordinates of position”, even though those coordinates were not possible to determine with infinite precision. Furthermore, time in quantum physics was taken to be on an equal foot, by means of a so-called “Heisenberg’s fourth relation of indeterminacy” concerning (...) time and energy. In this paper, the proper role of space and time in the core of non-relativistic quantum phsysics is analyzed. We will find that, rigorously, that relation for time and energy shows a different root. For the role of space, it will be discussed that there is no “coordinate of position” in the conceptual structure of quantum physics because quantum particles are not point-like objects. DOI:10.5007/1808-1711.2010v14n2p241. (shrink)
Although the evidence remains tentative at best, the conception of hallucinations in schizophrenia as being underconstrained perception resulting from intrinsic thalamocortical resonance in sensory areas might complement current models of hallucination. However, in itself, the approach falls short of comprehensively explaining the neurogenesis of hallucinations in schizophrenia, as it neglects the role of external attributional biases, mental imagery, and a disconnection between frontal and temporal areas.
Estamos tan habituados a que la ciencia describa la realidad mediante ecuaciones de asombrosa eficacia que raramente nos detenemos a pensar en la gentileza que demuestra el mundo prestándose a ello. ¿Por qué la naturaleza obedece reglas matemáticas tan magníficamente precisas? ¿Es genuinamente matemático el mundo, o tan sólo parece serlo la parte que podemos descubrir de él? Estas y otras cuestiones con ellas relacionadas se discuten en el contenido de esta obra, donde se traza el apasionante viaje que ha (...) llevado a la humanidad a explorar el cosmos con la imprescindible ayuda de las herramientas suministradas por el inagotable caudal de la matemática. (shrink)
En este libro un equipo formado por especialistas españoles y extranjeros pasa revista a los principales aspectos del conocimiento del mundo físico. Los autores combinan la perspectiva científica con la filosófica, en un esfuerzo de diálogo interdisciplinar que quiere estar a la altura de los tiempos. Reflejan la variedad de puntos de vista de los cultivadores de la filosofía de la naturaleza, aunque com¬parten la misma fe en el futuro de la disciplina y en el papel que le corresponde para (...) corregir los desequilibrios de la cultura contemporánea. (shrink)
Burns proposes an intriguing hypothesis by suggesting that the “schizophrenia genes” might not be regulatory genes themselves, but rather closely associated with regulatory genes directly involved in the proper growth of the social brain. We point out that this account would benefit from incorporating the effects of localized lesions and aberrant hemispheric asymmetry on cortical connectivity underlying the social brain. In addition, we argue that the evolutionary framework is superfluous.
Since the very begining of quantum theory there started a debate on the proper role of space and time in it. Some authors assumed that space and time have their own algebraic operators. On that basis they supposed that quantum particles had “coordinates of position”, even though those coordinates were not possible to determine with infinite precision. Furthermore, time in quantum physics was taken to be on an equal foot, by means of a so-called “Heisenberg’s fourth relation of indeterminacy” concerning (...) time and energy. In this paper, the proper role of space and time in the core of non-relativistic quantum phsysics is analyzed. We will find that, rigorously, that relation for time and energy shows a different root. For the role of space, it will be discussed that there is no “coordinate of position” in the conceptual structure of quantum physics because quantum particles are not point-like objects. (shrink)
We argue that the pivotal role assigned by Northoff to the principle of top-down modulation in catatonia might successfully be applied to other symptoms of schizophrenia, for example, hallucinations. Second, we propose that Northoff's account would benefit from a more comprehensive analysis of the cognitive level of explanation. Finally, contrary to Northoff, we hypothesize that “top-down modulation” might play as important a role as “horizontal modulation” in affective-behavioral alterations.
We argue that the field has moved forward from the old debate about “analogical” versus “symbolic” processing. First, it is questionable that there is a strong a priori argument for assuming a common processing mode. Second, we explore the possibility that imagery is not a unitary mental function. Finally, we discuss the empirical basis of the involvement of primary areas.
With regard to social-cognitive deficits in autism and psychosis, Crespi & Badcock's (C&B's) theory does not incorporate the developmental context of the disorders. We propose that there is significant overlap in social-cognitive impairments, but that the exact manifestation of social-cognitive deficits is highly dependent on the dynamics of cognitive development and hence different in autism as compared to psychosis.
In our daily lives, we continuously evaluate feedback information, update our knowledge, and adapt our behavior in order to reach desired goals. This ability to learn from feedback information, however, declines with age. Previous research has indicated that certain higher-level learning processes, such as feedback evaluation, integration of feedback information, and updating of knowledge, seem to be affected by age, and recent studies have shown how the adaption of choice behavior following feedback can differ with age. The neural mechanisms underlying (...) this age-related change in choice behavior during learning, however, remain unclear. The aim of this study is therefore to investigate the relation between learning-related neural processes and choice behavior during feedback learning in two age groups. Behavioral and fMRI data were collected, while a group of young and older adults performed a probabilistic learning task consisting of 10 blocks of 20 trials each. On each trial, the participants chose between a house and a face, after which they received visual feedback. In each block, either the house or the face image had a higher probability of yielding a reward. Participants were instructed to try to maximize their gains. Our results showed that less successful learning in older adults, as indicated by a lower learning rate, corresponded with a higher tendency to switch to the other stimulus option, and with a reduced adaptation of this switch choice behavior following positive feedback. At the neural level, activation following positive and negative feedback was found to be less distinctive in the older adults, due to a smaller feedback-evaluation response to positive feedback in this group. Furthermore, whereas young adults displayed increased levels of knowledge updating prior to adapting choice behavior, we did not find this effect in older adults. Together, our results suggest that diminished learning performance with age corresponds with diminished evaluation of positive feedback and reduced knowledge updating related to changes in choice behavior, indicating how such differences in feedback processing at the trial level in older adults might lead to reduced learning performance across trials. (shrink)
En el contexto de la pandemia de COVID-19 el artículo se centra en las personas adultas mayores y pregunta acerca de dos tópicos: por una parte, por la soledad y las relaciones sociales; por otra, por el envejecimiento mismo y por la muerte. Considerando estas dimensiones, el artículo expone, primero, la idea de respectividad, tal como ha sido expuesta por el filósofo español Xavier Zubiri; y segundo, se expone la aproximación al fenómeno del envejecimiento y a la idea de vida (...) como actividad, tal como es expuesta por el pensador alemán Max Scheler. Finalmente, se propone una aplicación de ambos conceptos a los adultos mayores: una vida humana será mejor, si la persona es activa y vive en buenas y profundas relaciones sociales. (shrink)
La tesis fundamental de los Discursos a la nación alemana de Fichte reza del modo siguiente: sola la educación puede salvar a la nación. Este texto se propone indagar sobre las razones históricas, políticas, sociales e ideológicas más importantes que pudieron llevar al reconocido filósofo alemán a formular tan inquietante afirmación. Abarca, grosso modo, desde la época de la Reforma protestante hasta la disolución del Sacro Imperio Romano Germánico. Tal análisis permitirá, además, comprender cuál fue el contexto social general que (...) dio lugar al surgimiento de movimientos tan reconocidos como la Ilustración, el Clasicismo, el Romanticismo y el Idealismo alemanes, para los cuales -caso de Fichte-, tuvo la educación y la formación de los individuos un papel fundamental que cumplir en y para la sociedad. (shrink)
El artículo tiene como propósito indicar la recepción de Ser y tiempo deMartin Heidegger en la saga El río del tiempo de Fernando Vallejo,especialmente en las novelas El fuego secreto y Entre fantasmas,así como las restantes alusiones al filósofo alemán en otras novelas del escritorcolombiano. Este análisis se realiza mediante la referencia a una serie demenciones explícitas de la obra de Heidegger en las novelas de Vallejo. En estesentido, las conclusiones están referidas al contraste entre el peso del estudiofilosófico y (...) la ironía de la recepción. (shrink)
Resumen: En Le courage de la vérité, justo antes del análisis en torno de la filosofía cínica, se hace referencia a una serie de textos que han abordado en alguna medida la cuestión del influjo del cinismo helenístico más allá de los márgenes de la Antigüedad. El único de los textos mencionados que no es alemán y que tiene como autor a alguien que pertenece al escenario intelectual de Foucault es Cynisme et passion de André Glucksmann, trabajo que ha sido (...) obviado por las diferentes investigaciones en torno a la filosofía cínica y por los estudios sobre la “vuelta” foucaultiana a los griegos. En el presente ensayo no procuraremos apenas dejar en evidencia la originalidad y pertinencia de la concepción glucksmanniana del cinismo, sino, además, mostraremos los elementos en los que se descubre un paralelismo entre dicha concepción y lo sostenido por Foucault en el último de sus seminarios impartidos en el Collège.: In Le courage de la vérité, just prior to his analysis of Cynicism, Foucault refers to a series of texts that have addressed, to some extent, the influence of Ancient Cynicism beyond the margins of ancient times. Among the texts mentioned, there is only one that is not German, whose author belongs to Foucault’s intellectual environment: André Glucksmann’s Cynisme et passion. This work has been ignored by both different pieces of research on Cynicism, and the studies regarding Foucault’s “return” to the Greeks. The present article will not merely highlight the originality and relevance of Glucksmann’s conception of Cynicism, but it will also reveal the elements in which parallelisms can be found between such conception and what Foucault claims in his last course at the Collège de France. (shrink)
" Au bas de la statue d'Auguste Comte, place de la Sorbonne, à Paris, on pouvait lire récemment - et peut-être le peut-on encore : "Ni Comte ni Sponville". Ce graffiti exprime à sa manière l'un des grands défis de la philosophie française de cette fin de siècle, à savoir celui de sa popularité. Car la philosophie est désormais au centre de la vie publique : elle trône dans les cafés, se fait une place dans l'entreprise et s'installe même dans (...) les cabinets privés. Mais ce qui ne laisse pas d'étonner, c'est l'écho qu'elle rencontre auprès d'un grand public avide de lectures philosophiques. Il convient de s'interroger sur cet engouement, ou plutôt d'interroger les philosophes à ce sujet, eux qui sont sans doute les mieux placés pour y répondre. " Précédés d'une introduction à l'œuvre des auteurs interviewés, les six entretiens réunis dans ce livre font le point à la fois sur la pensée de chacun d'eux et sur la situation générale de la philosophie française actuelle. Bien qu'on n'ait dans aucun sens affaire ici ni à une école ni à une improbable " pensée 98 ", il se dégage quand même de ces rencontres l'image d'une philosophie qui a renoué avec la vie, qui est arrivée à reformuler, à nouveaux frais, les questions de la philosophia perennis et qui a rétabli le dialogue avec son temps. (shrink)
In a famous text Descartes has written this: Whenever the thought of God's supreme power occurs to me, I cannot help feeling that he might easily, if he so wished, make me go wrong even in what I think I see most clearly with my mind's eye. On the other hand, whenever I turn to the matters themselves which I think I perceive very clearly, I am so convinced by them that I burst out: ‘let who will deceive me, he (...) can never bring it about that I should be nothing at the time of thinking that I am something, nor that it be true that I never existed if it is true that I exist now; nor even that two and three together make more or less than five, or any such thing in which I see manifest contradiction’. (shrink)
This volume gathers contributions at the intersection of history and politics. The essays, covering such topics as diverse as Italian identity in the Tientsin concession, international refugee policies in the interwar period and after, and the myths and realities of the Ukranian-Russian encounter in independent Ukraine, show that history provides better grounding as well as a more suitable paradigm for the study of politics than economics or other hard sciences. All of the contributors have a common link - doctoral work (...) supervised and shaped by Professor Andre Liebich - but have since expanded widely in the world. Hence, the authors of this work at once share a common base and yet benefit from diverse viewpoints. (shrink)
1. Legend has it that as Mozart lay dying, a stranger dressed in black entered the room. Without saying word, he walked to the death-bed, removed the manuscript sheets of the Requiem on which the composer had been working until his final hours, and departed. This was not as you might have thought an envoy from beyond—but the servant of a certain Viennese nobleman, Count Walsegg zu Stuppach. The Count was in the habit of commissioning music anonymously, and having it (...) played in his palace as though it were his own. In extremis he was collecting the score for a forthcoming soirée. (shrink)
Tradução para o português do livro "Le Scepticisme Philosophique", Paris: Bordas, 1972, de André Verdan. Título da edição brasileira: O Ceticismo Filosófico. Florianópolis: Editora da UFSC, 1998, 135 páginas. ISBN: 8532801390 / ISBN-13: 9788532801395.
_Not exercising as much as you should? Counting your calories in your sleep? Feeling ashamed for not being happier? You may be a victim of the wellness syndrome._ In this ground-breaking new book, Carl Cederström and André Spicer argue that the ever-present pressure to maximize our wellness has started to work against us, making us feel worse and provoking us to withdraw into ourselves. The Wellness Syndrome follows health freaks who go to extremes to find the perfect diet, corporate athletes (...) who start the day with a dance party, and the self-trackers who monitor everything, including their own toilet habits. This is a world where feeling good has become indistinguishable from being good. Visions of social change have been reduced to dreams of individual transformation, political debate has been replaced by insipid moralising, and scientific evidence has been traded for new-age delusions. A lively and humorous diagnosis of the cult of wellness, this book is an indispensable guide for everyone suspicious of our relentless quest to be happier and healthier. (shrink)
The philosophy problem of identity and the related problem of change go back to the ancient Greek philosophers and fascinated later figures including Leibniz, Locke and Hume. Heraclitus argued that one could not swim in the same river twice because new waters were ever flowing in. When is a river not the same river? If one removes one plank at a time when is a ship no longer a ship? What is the basic nature of identity and persistence? This book (...) introduces and asseses the philosophical puzzles posed by things persisting through time. Beginning with essential historical background to the problem it explores the following key topics and debates: mereology and identity, including 'Leibniz's Law' the constitution view of identity the 'relative identity' argument concerning identity temporary identity four-dimensionalism, counterpart and mulitiple counterpart theory supervenience the problem of temporary intrinsics the necessity of identity presentism ontological and epistemological criteria for persistence and the difference between them. Including chapter summaries, annotated further reading and a glossary this book is essential reading for anyone seeking a clear and informative introduction to and assessement of the metaphysics of identity. (shrink)
Occasions of Identity is an exploration of timeless philosophical issues about persistence, change, time, and sameness. Andre Gallois offers a critical survey of various rival views about the nature of identity and change, and puts forward his own original theory. He supports the idea of occasional identities, arguing that it is coherent and helpful to suppose that things can be identical at one time but distinct at another. Gallois defends this view, demonstrating how it can solve puzzles about persistence dating (...) back to the Ancient Greeks, and investigates the metaphysical consequences of rejecting the necessity and eternity of identities. (shrink)
[Stephen Yablo] The usual charge against Carnap's internal/external distinction is one of 'guilt by association with analytic/synthetic'. But it can be freed of this association, to become the distinction between statements made within make-believe games and those made outside them-or, rather, a special case of it with some claim to be called the metaphorical/literal distinction. Not even Quine considers figurative speech committal, so this turns the tables somewhat. To determine our ontological commitments, we have to ferret out all traces of (...) nonliterality in our assertions; if there is no sensible project of doing that, there is no sensible project of Quinean ontology. /// [Andre Gallois] I discuss Steve Yablo's defence of Carnap's distinction between internal and external questions. In the first section I set out what I take that distinction, as Carnap draws it, to be, and spell out a central motivation Carnap has for invoking it. In the second section I endorse, and augment, Yablo's response to Quine's arguments against Carnap. In the third section I say why Carnap's application of the distinction between internal and external questions runs into trouble. In the fourth section I spell out what I take to be Yablo's version of Carnap. In the last I say why that version is especially vulnerable to the objection raised in the second. (shrink)
