Par un ami et conseiller qui fut en rapports constants avec Teilhard, mise en lumière des axes majeurs de sa pensée philosophique, suivie d'une réflexion critique.

Living donation provides important access to organ transplantation, which is the optimal therapy for patients with end-stage liver or kidney failure. Paired exchanges have facilitated thousands of kidney transplants and enable transplantation when the donor and recipient are incompatible. However, frequently willing and otherwise healthy donors have contraindications to the donation of the organ that their recipient needs. Trans-organ paired exchanges would enable a donor associated with a kidney recipient to donate a lobe of liver and a donor associated with (...) a liver recipient to donate a kidney. This article explores some of the ethical concerns that trans-organ exchange might encounter including unbalanced donor risks, the validity of informed consent, and effects on deceased organ donation. (shrink)

El artículo analiza y problematiza el “método analógico” puesto en juego por la filosofía de la individuación de Gilbert Simondon. Plantea las condiciones del problema y reconstruye el debate que ha propiciado entre los intérpretes; precisa el carácter isodinámico y genético de la práctica analógica simondoniana, así como su objeto específico; analiza el vínculo teórico que mantiene con el Dialogue sur l’analogie (1946) de Bruno de Solages, y concluye con una reflexión relativa a las tensiones que recorren al método (...) analógico en tanto intermediario entre epistemología y metafísica. (shrink)

Modelos neurocognitivos têm sido propostos para investigar a consciência. O objetivo é responder à pergunta sobre como o cérebro é capaz de produzir estados conscientes qualitativos. Os modelos são representações teóricas baseadas em algumas pesquisas empíricas. Contudo, a questão central, aparentemente trivial para alguns autores, refere-se à representatividade e confiabilidade dos modelos, i.e., saber se são capazes de explicar como a consciência emerge de processos neurais. Esses modelos são considerados como guia no estudo científico da consciência: os modelos cognitivos de (...) Dennett e Baars, os modelos neurobiológicos de Edelman, Dehaene et al., de Damásio, e o modelo neurodinâmico proposto por Freeman. O presente texto visa a analisar a coerência e a plausibilidade dos modelos, i.e., se realmente explicam a “consciência” e suas propriedades em termos neurais ou se explicam apenas mecanismos neurobiológicos subjacentes no cérebro. O objetivo é avaliar escopo e limites dos modelos além da aplicabilidade na resolução do problema da consciência. Neurocognitive models are proposed in order to study the problem of consciousness. The models are attempts to answer the question of how the brain can generate conscious and qualitative states. Models are theoretical representations based on empirical data. Nonetheless, the central question concerns the reliability and the representativeness of the models, i.e., whether they in fact represent what they are supposed to explain, viz., how consciousness can emerge from neuronal processes. Such models are taken to be a guide for the scientific study of consciousness. Presently, there are six models: the multiple draft, the global workspace, the dynamic core, the global neuronal workspace, the somatic markers hypothesis, and the neurodynamic model. This text is a survey and a philosophical analysis of the models of consciousness, and it considers their plausibility and coherence. I will concentrate on two points: whether the neuroscientific models are able to explain ‘consciousness’ and its properties in neural terms, or whether the models only explain the neural correlates of conscious states, and the scope, limitations and applicability of the models in the attempt to solve the problem of consciousness. (shrink)

Nothing seems to follow strictly from 'X believes that p'. But if we reinterpret it to mean: 'X can consistently be described as consistently believing p'--which roughly renders, I think, Hintikka's notion of "defensibility"--we can get on with the subject, freed from the inhibitions of descriptive adequacy. But defensibility is neither necessary nor sufficient for truth: it tells us little, therefore, about the concept of belief on which it is based. It cannot, in particular, specify necessary conditions for the consistent (...) ascription of belief--as opposed to rational belief. If there are no such conditions, all belief ascriptions must be treated as atomic: which is implausible. If there are some, they must be settled on before an account of consistency can be complete. The reason is simple: it is that we have beliefs about our own beliefs. A set of first order beliefs is consistent if they can all be true together; but it is a lesson of Moore's paradox that consistency of second-order beliefs requires additional constraints. If someone both believes that p and that he does not believe that p, the propositions he believes might all be true together, yet he is inconsistent. And the characterization of second order consistency will remain incomplete, so long as nothing is said about the consistency of first order belief ascriptions. Suppose someone says and believes: "I am inconsistent: I believe both p and ~p." This is "indefensible": but is it insight, or nonsense? Breast-beating of this sort is guaranteed success: something he believes is bound to be false. But that remains diagnostically frustrating: is he inconsistent because what he said is true, or on the contrary because it is inconsistent? (shrink)

Welch :263–279, 2017) has recently proposed two possible explanations for why the field of evolutionary biology is plagued by a steady stream of claims that it needs urgent reform. It is either seriously deficient and incapable of incorporating ideas that are new, relevant and plausible or it is not seriously deficient at all but is prone to attracting discontent and to the championing of ideas that are not very relevant, plausible and/or not really new. He argues for the second explanation. (...) This paper presents a twofold critique of his analysis: firstly, the main calls for reform do not concern the field of evolutionary biology in general but rather, or more specifically, the modern evolutionary synthesis. Secondly, and most importantly, these calls are not only inspired by the factors, enumerated by Welch, but are also, and even primarily, motivated by four problematic characteristics of the modern synthesis. This point is illustrated through a short analysis of the latest reform challenge to the modern synthesis, the so-called extended evolutionary synthesis. We conclude with the suggestion that the modern synthesis should be amended, rather than replaced. (shrink)

The lambda calculus is a universal programming language. It can represent the computable functions, and such offers a formal counterpart to the point of view of functions as rules. Terms represent functions and this allows for the application of a term/function to any other term/function, including itself. The calculus can be seen as a formal theory with certain pre-established axioms and inference rules, which can be interpreted by models. Dana Scott proposed the first non-trivial model of the extensional lambda calculus, (...) known as $ D_{\infty }$, to represent the $\lambda $-terms as the typical functions of set theory, where it is not allowed to apply a function to itself. Here we propose a construction of an $\infty $-groupoid from any lambda model endowed with a topology. We apply this construction for the particular case $D_{\infty }$, and we see that the Scott topology does not provide enough information about the relationship between higher homotopies. This motivates a new line of research focused on the exploration of $\lambda $-models with the structure of a non-trivial $\infty $-groupoid to generalize the proofs of term conversion to higher-proofs in $\lambda $-calculus. (shrink)

Introduction. Bert HAMMINGA and Neil DE MARCHI: Préface. Bert HAMMINGA and Neil DE MARCHI: Idealization and the Defence of Economics: Notes Toward a History. Part I: General Observations on Idealization in Economics. Kevin D. HOOVER: Six Queries about Idealization in an Empirical Context. Bernard WALLISER: Three Generalization Processes for Economic Models. Steven COOK and David HENDRY: The Theory of Reduction in Econometrics. Maarten C.W. JANSSEN: Economic Models and Their Applications. Adolfo GARCÍA DE LA SIENRA: Idealization and Empirical Adequacy in Economic (...) Theory. Izabella NOWAKOWA and Leszek NOWAK: On Correspondence between Economic Theories. Uskali MÄKI: Isolation, Idealization and Truth in Economics. Part II: Case Studies of Idealization in Economics. Nancy CARTWRIGHT: Mill and Menger: Ideal Elements and Stable Tendencies. Wolfgang BALZER: Exchange Versus Influence: A Case of Idealization. Kees COOLS, Bert HAMMINGA, Theo A.F. KUIPERS: Truth Approximation by Concretization in Capital Structure Theory. Daniel M. HAUSMAN: Paul Samuelson as Dr. Frankenstein: When an Idealization Runs Amuck. Hugo A. KEUZENKAMP: What if an Idealization is Problematic? The Case of the Homogeneity Condition in Consumer Demand. Werner DIEDERICH: Nowak on Explanation and Idealization in Marx's 'Capital'. Gérard JORLAND: Idealization and Transformation. Jack BIRNER: Idealizations and Theory Development in Economics. Some History and Logic of the Logic Discovery. Discussions. Leszek NOWAK: The Idealizational Methodology and Economics. Replies to Diederich, Hoover, Janssen, Jorland and Mäki. (shrink)

About Christian philosophy, by J. Maritain.--Von Hildebrand and Marcel: a parallel, by A. Jourdain.--Love and philosophy, by J. V. Walsh.--The concepts of cyclic and evolutionary time, by B. de Solages.--The sovereignty of the object; notes on truth and intellectual humility, by A. Kolnai.--Authentic humanness and its existential primordial assumptions, by C. Marcel.--Individuality and personality, by M. F. Sciacca.--Can a will be essentially good? By H. de Lubac.--Reason and revelation on the subject of charity, by R. W. Gleason.--Technique of spiritualization (...) and transformation in Christ, by J. A. Cuttat.--Some reflections on gratitude, by B. V. Schwarz.--Bibliography of the works of Dietrich Von Hildebrand (p. 195-210). (shrink)

Marcel Beaufils fut un pedagogue exceptionnel qui exerca une influence decisive sur l'evolution de l'esthetique musicale en France, a partir des annees 50. Or, parmi ses ouvrages, Musique du son, musique du verbe est tres certainement celui qui porte le plus fortement la marque de son activite d'enseignant au Conservatoire National Superieur de Musique de Paris ; cette mission, il semblait l'entendre davantage comme celle d'un declencheur d'idees, catalyseur, plutot que du transmetteur d'un savoir fige une fois pour toutes. Bouleversant (...) toute tentative de classification academique, toute certitude acquise, ce livre laisse des pointilles ; un grand souffle traverse son ecriture. N'en deplaise aux musicographes, il s'agit la d'un ouvrage de creation, qui nous rappelle que Marce Beaufils etait egalement un ecrivain qui savait manier le verbe a la fois en tant que dramaturge et en tant que poete. (shrink)

Conheci Raduan num sábado entre junho ou julho de 1996. Estimo os meses e garanto o dia e o ano em razão de Menina a caminho. Amizades comuns nos levaram então a participar de festa familiar no paulistano bairro do Pacaembu. Situado em rua tranquila, o restaurado sobrado compunha-se das variadas dependências requeridas em outros tempos por famílias de classes em fase de ascensão. No piso térreo, destacava-se o espaço destinado aos convidados: a ampla sala, integrada à copa e a (...) um ajardinado terraço. Sobretudo ali as crianças da casa e de vários convidados comiam, corriam e algazarreavam. (shrink)

Este texto procura traçar algumas linhas gerais da articulação entre música e ironia (ou audição musical e hermenêutica) no romantismo. Procura-se explorar a apropriação original que Søren Kierkegaard fez das “técnicas” hermenêuticas desenvolvidas por Friedrich Schlegel e Friedrich Schleiermacher.

RESUMO A partir do exame da tradição heraclitiana e platônica sobre a transitoriedade e a imortalidade - conceitos compreendidos como universais - este artigo defende a seguinte antinomia como tese: para haver temporalidade é preciso haver eternidade. Essa tese é demonstrada por meio do estudo e atualização das noções de alma, espírito, ideia e memória, as quais estão conectadas invariavelmente ao tempo passado como princípio ontológico do fenômeno histórico. Para além do ponto de vista filosófico, portanto, da perspectiva específica do (...) conhecimento histórico, este estudo expõe algumas implicações teóricas acerca das condições de possibilidade da história, que são discutidas, finalmente, em diálogo com Friedrich Nietzsche e Jacob Burckhardt. ABSTRACT From the analysis of the Heraclitian and Platonic tradition on transience and immortality - understood as universal concepts - this essay defends the following antinomy as its thesis: if there is temporality there must be eternity. This thesis is demonstrated through the study and updating of the notions of soul, spirit, idea and memory, which are invariably connected to the past as the ontological principle of the historical phenomenon. Beyond the philosophical point of view, therefore, from the specific perspective of historical knowledge, this study exposes some theoretical implications about the conditions of possibility of history, which are finally discussed in dialogue with Friedrich Nietzsche and Jacob Burckhardt. (shrink)