The present study aimed to verify the quarantine’s effects during a serious viral outbreak on the cardiovascular and performance associated with the Yo-Yo test in a sample of professional soccer players. 20 high-level soccer players participated in this study. The intermittent Yo-Yo test was performed pre- and post- COVID-19 quarantine in a random order. During each test, the soccer players’ running performance outcomes were monitored using a portable 5-Hz GPS with a 100 Hz accelerometer and a paired t-test was conducted (...) at a p-value of ≤ 0.05. The main results demonstrated significant differences between pre- versus post-COVID-19 quarantine in the following variables: relative distance, maximal speed, acceleration, deceleration, sprints > 19 km/h [0.8 % >0.5 %], and in high intensity running distance [16.48 m > 0.827 m]. We concluded that COVID-19-related restrictions and quarantine COVID-19 demonstrated adverse effects on professional soccer players’ Yo-Yo tests performance. (shrink)

This is an introductory handbook for some of the main themes around the notion of predication in Aristotle. It does not aim at being exhaustive, but only sketches some important lines about the subject; it contains an introductory essay, besides the translation (into Portuguese) and commentary of basic texts (such as Posterior Analytics I-22, Categories 1-5, Interpretation 1-6 etc.).

Translation of Aristotle's Physics I-II into Portuguese, with commentaries. Tradução para o português dos livros I e II da Física de Aristóteles, com comentários.

Studie over het verschijnsel helderziendheid waarbij de verschillende in de loop der tijden ontwikkelde theorieën en verklaringen in een logisch verband behandeld worden.

This paper discusses some issues concerning the definition of moral virtue in Nicomachean Ethics 1106b 36- 1107a 2. It is reasonable to expect from a definition the complete enumeration of the relevant features of its definiendum, but the definition of moral virtue seems to fail in doing this task. One might be tempted to infer that this definition is intended by Aristotle as a mere preliminary account that should be replaced by a more precise one. The context of the argument (...) Aristotle develops in Book II of his NE give us some help. I argue that the definition of moral virtue, once considered in the light of its context, is far from being an incomplete and provisional account: it rather introduces coherently the same notion of moral virtue that Aristotle employs in other texts (as in Nicomachean Ethics VI 13). My main proposal is that the way in which "hexis" is understood in the context of previous chapters allows Aristotle to encode in it the notion of an ability to do the right things regularly. Thus, moral virtue is a "hexis prohairetike etc.", but the ability to do the right things regularly is already encoded in the occurrence of "hexis" in the definiens account of moral virtue, as if Aristotle meant "hexis [praktike] prohairetike". (shrink)

It is common to appeal to governing laws of nature in order to explain the existence of natural regularities. Classical theism, however, maintains the sovereignty thesis: everything distinct from God is created by him and is under his guidance and control. It follows from this that God must somehow be responsible for natural laws and regularities. Therefore, theists need an account of the relation between regularities, laws, and God. I examine competing accounts of laws of nature and conclude that dispositional (...) essentialism provides the most satisfactory explanation of the relation between, and. (shrink)

Translation of Aristotle's Metaphysics Lambda into Portuguese.

Translation of passages of Aristotle's De Anima into Portuguese. The passages are these: I.1, I.4 (the 'Rylean passage'); II.1-6; III.1-8. The translation is preliminary.

This book examines phenomenal conservatism, one of the most influential and promising internalist conceptions of non-inferential justification debated in current epistemology and philosophy of mind. It also explores the significance of the findings of this examination for the general debate on epistemic justification. According to phenomenal conservatism, non-inferential justification rests on seemings or appearances, conceived of as experiences provided with propositional content. Phenomenal conservatism states that if it appears to S that P, in the absence of defeaters, S thereby has (...) some justification for believing that P. This view provides the basis for foundationalism and many ordinary epistemic practices. This book sheds new light on phenomenal conservatism by assessing objections to it and examining epistemological merits and advantages attributed to it. In a nutshell, phenomenal conservatism is actually compatible with Bayesian reasoning, and it is unaffected by bootstrapping problems and challenges that appeal to the cognitive penetrability of perception. Nevertheless, appearance-based justification proves unstable or elusive and its antisceptical bite is more limited than expected. These difficulties could be surmounted if phenomenal conservatism were integrated with a theory of inferential justification. The book appeals to scholars and postgraduates in the field of epistemology and philosophy of mind who are interested in the rational roles of appearances. (shrink)

The economics profession has become a favourite punching bag in the aftermath of the global financial crisis. Economists are widely reviled and their influence derided by the general public. Yet their services have never been in greater demand. To unravel the paradox, we need to understand both the strengths and weaknesses of economics. This book offers both a defence and critique of economics. Economists' way of thinking about social phenomena has great advantages. But the flexible, contextual nature of economics is (...) also its Achilles' heel in the hands of clumsy practitioners. (shrink)

In this paper we focus on transmission and failure of transmission of warrant. We identify three individually necessary and jointly sufficient conditions for transmission of warrant, and we show that their satisfaction grounds a number of interesting epistemic phenomena that have not been sufficiently appreciated in the literature. We then scrutinise Wright’s analysis of transmission failure and improve on extant readings of it. Nonetheless, we present a Bayesian counterexample that shows that Wright’s analysis is partially incoherent with our analysis of (...) warrant transmission and prima facie defective. We conclude exploring three alternative lines of reply: developing a more satisfactory account of transmission failure, which we outline; dismissing the Bayesian counterexample by rejecting some of its assumptions; reinterpreting Wright’s analysis to make it immune to the counterexample. (shrink)

A number of epistemologists have defended a necessary condition for knowledge that has come to be labeled as the “safety” condition. Timothy Williamson, Duncan Pritchard, and Ernest Sosa are the foremost defenders of safety. According to these authors an agent S knows a true proposition P only if S could not easily have falsely believed P. Disagreement arises, however, with respect to how they capture the notion of a safe belief. This article is a treatment of the different presentations and (...) defenses of the safety condition for knowledge. Special attention is first paid to an elucidation of the various aspects or features of the safety condition. Following a short demonstration of the manner in which the safety condition handles some rather tough Gettier-like cases in the literature, some problems facing safety conclude this article. (shrink)

This open access book investigates the role played by identity of proofs in proof-theoretic semantics. It develops a conception of proof-theoretic semantics as primarily concerned with the relationship between proofs (understood as abstract entities) and derivations (the linguistic representations of proofs). It demonstrates that identity of proof is a key both to clarify some —still not wholly understood— notions at the core of proof-theoretic semantics, such as harmony; and to broaden the range of the phenomena which can be analyzed using (...) the tools of this semantic paradigm, so as to include for instance paradoxes. The volume covers topics such as the philosophical significance of different criteria of identity of proofs, and adequacy conditions for an intensional account of the notion of harmony. The author also examines the Prawitz-Tennant analysis of paradoxes by investigating on the one hand the prospects of turning it into a theory of meaning for paradoxical languages, and on the other hand two distinct kinds of phenomena, first observed by Crabbe and Ekman, showing that the Tennant-Prawitz criterion for paradoxicality overgenerates. This volume is of interest to scholars in formal and philosophical logic. (shrink)

Translation of Aristotle’s Metaphysics IX and X (Theta & Iota) into Portuguese, with a few notes, experimental glossary and introduction. The translation, which was made at 2004, is preliminary and its publication was intended to provide a didactic tool for courses as well as a provisional resource in research seminars. It needs some revision. I am currently working (slowly...) on the revision of the translation and a new revised one will surely appear at some point.

I discuss a short string of five sentences in Metaphysics V.5, 1015b6-9 relating demonstration to necessity. My proposal is that Aristotle focuses his attention on the demonstration as a demonstration. Other interpretations reduce the necessity in question to the modality of the component sentences of the demonstrations (the conclusion and the premises). My view does not deny that the modality of the component sentences is important, but takes seriously the idea that a demonstration itself should be understood as necessary—as not (...) capable of being otherwise. A demonstration cannot be different from what it is in the sense that [i] its components cannot be different from what they are, [ii] its components must be related to each other exactly in the way they are related. Demonstrations aim at the fully appropriate explanation of a given explanandum—and each demonstration is individuated by the explanandum it takes. Thus, the basic idea is that, for the target explanandum that individuates a given demonstration, the premises delivering the fully appropriate explanation cannot be replaces with different ones. I show how this proposal, which explains Aristotle’s language in 1015b6-9 accurately, does not make demonstrations ‘melt down into conditional necessity’, first, because the modality of the component sentences is still importantly involved, second, because the explanatory relation expressed in a demonstration is a necessary fact in the real world, so that the demonstration itself is also necessary (in the way I have explained) inasmuch as it captures that fact. (shrink)

This chapter has two main sections. In the first section I briefly sketch Immanuel Kant’s moral theory as laid out in his Groundwork of the Metaphysics of Morals (1785). I explain Kant’s claim that morality must be grounded on what he calls a categorical imperative and examine his three formulations of this categorical imperative. In the second section I explain the distinction between “deontological” and “teleological” ethical theories. Kantian ethics is often presented as the paradigm example of a deontological ethical (...) theory, but I question whether Kant’s ethics should be understood as purely deontological. (shrink)

Dans tous les pays et particulierement en Europe, les citoyens, les magistrats et les juristes en general deplorent la complexite normative. Comment traiter la complexite des normes a prendre en compte dans toutes les decisions fondees sur la regle de droit? Depuis une quinzaine d'annees, l'etude des systemes complexes a fait de grands progres tant du point de vue des methodes que de la modelisation. L'approche politique et l'approche scientifique semblent a priori eloignees, mais elles convergent sur l'interet de prendre (...) en compte un objet nouveau: la complexite des systemes. Ces systemes font emerger de nouvelles proprietes, non observables au niveau des elements constitutifs, par une dynamique difficilement previsible, et rendent vaine toute analyse en sous-systemes plus simples. Pour la premiere fois, des specialistes des systemes complexes, des juristes, des philosophes, des experts de l'action publique et de l'evaluation des lois conjuguent leurs reflexions pour depasser les problematiques de la simplification et proposent des concepts et des outils totalement nouveaux pour comprendre et traiter de facon simple l'inevitable complexite du droit. (shrink)

Ce livre prend position sur les enjeux et les visées des oeuvres d'art en matière de vérité et de morale : il répond, par un retour sur l'époque des Lumières, aux questions contemporaines sur l'idée d'un perfectionnement moral de l'individu (S. Cavell, M. Nussbaum, S. Laugier). Car les Lumières ont remis au coeur de la création artistique les émotions, les affects et les sentiments, mues par la conviction de l'efficacité d'une éducation esthétique de l'homme, d'une éducation sensible par le sensible, (...) en l'occurrence par les oeuvres. La vérité a-t-elle un sens en matière artistique? Notre besoin d'art est-il lié à notre conviction qu'elles nous rendent meilleurs et nous font mieux connaître le monde? L'autonomie de l'oeuvre, la liberté du créateur, la dévaluation de tout canon au nom d'un global turn qui contraint au relativisme rendent aujourd'hui difficile l'affirmation d'une vérité. (shrink)

The highly arcane 'wisdom' produced by the French psychoanalyst Jacques Lacan is either endlessly regurgitated and recited as holy writ by his numerous acolytes, or radically dismissed as unpalatable nonsense by his equally countless detractors. Contrary to these common, strictly antagonistic yet uniformly uncritical practices, this book offers a meticulous critique of some key theoretical and clinical aspects of Lacan's expansive oeuvre, testing their consistency, examining their implications, and investigating their significance. In nine interrelated chapters, the book highlights both the (...) flaws and the strengths of Lacan's ideas, in areas of investigation that are as crucial as they are contentious, within as well as outside psychoanalysis. Drawing on a vast range of source-materials, including many unpublished archival documents, it teases out controversial issues such as money, organisational failure, and lighthearted, 'gay' thinking, and it relies on the highest standards of scholarly excellence to develop its arguments. At the same time, the book does not presuppose any prior knowledge of Lacanian psychoanalysis on the part of the reader, but allows its readership to indulge in the joys of in-depth critical analysis, trans-disciplinary creative thinking, and persistent questioning. This book will appeal to researchers and students alike in psychoanalytic studies and philosophy, as well as all those interested in French theory and the history of ideas. (shrink)

"A demain le bon sexe"... disait, non sans une pointe d'ironie, Michel Foucault, au plus fort de la "révolution sexuelle", et l'on sentait que ce n'était pas gagné. Qu'est-ce que le bon sexe? J'ai écrit ce livre en neuf mois... et toute une vie... Sans doute, pour moi, une manière de réaliser une certaine façon qui fut mienne d'être femme je me revois, dans ma petite chambre mansardée, étudiante, tentant en vain de lire en son entier l'Histoire de la sexualité (...) de Michel Foucault... Que savais-je de la sexualité, que pouvais-je recevoir de cet essai, que je trouvais grandiose, lumineux et obscur? Foucault, le seul des philosophes à parler de "ces choses-là", était bien isolé. Il faudrait du temps pour que ses écrits fassent leur route et du temps pour changer les mentalités. Du temps aussi pour moi, pour pouvoir les entendre, qu'ils fassent écho en moi. "Le sexe, disait Foucault, ça s'administre, la sexualité, ça se subit ; quant à la sensualité, elle est chaque jour à inventer." J'ai voulu rouvrir le dossier, emprunter les chemins qu'il a tracés en 1976 en écrivant son Histoire de la sexualité, qui est l'histoire des discours sur la sexualité, eux-mêmes histoire des corps investis par le pouvoir. Danièle Sastre. (shrink)

Con Spinoza, la filosofía moderna alcanza una nueva comprensión de la subjetividad. Sobre la base de la crítica del racionalismo, Spinoza descubre, por primera vez, la afectividad para la filosofía. El filósofo reflexiona sobre la repercusión de los afectos en la formación del sujeto ético y piensa que el mayor conocimiento posible sobre los propios afectos redunda en la utilidad colectiva de la humanidad toda. Sostengo que, en la teoría general de los afectos que explica la naturaleza, principios y fundamentos (...) de los fenómenos afectivos, Spinoza anida una oportuna teoría del autoconocimiento. (shrink)

Mindreading (or folk psychology, Theory of Mind, mentalizing) is the capacity to represent and reason about others’ mental states. The Simulation Theory (ST) is one of the main approaches to mindreading. ST draws on the common-sense idea that we represent and reason about others’ mental states by putting ourselves in their shoes. More precisely, we typically arrive at representing others’ mental states by simulating their mental states in our own mind. This entry offers a detailed analysis of ST, considers theoretical (...) arguments and empirical data in favour of and against it, discusses its philosophical implications, and illustrates some alternatives to it. (shrink)

Translation of Aristotle's Metaphysics IV and VI, with notes. The translation is preliminary and intended as a provisional teaching tool to be also used in seminars and discussions with peers in order to reach a more elaborated version.

The assumption that coercion is largely responsible for our legal systems’ efficacy is a common one. I argue that this assumption is false. But I do so indirectly, by objecting to a thesis I call “(Compliance)”, which holds that most citizens comply with most legal mandates most of the time at least partly in virtue of being motivated by legal systems’ threats of sanctions and other unwelcome consequences. The relationship between (Compliance) and the efficacy of legal systems is explained in (...) section 1. There I also show that (Compliance) must be rejected for it relies on unsubstantiated empirical assumptions. In section 2, I claim that an alternative, and more refined, formulation of (Compliance) also lacks adequate support. I conclude with a few general remarks about the centrality of coercion in our thought and talk about legal systems. (shrink)

In this paper evidence will be provided that Wittgenstein’s intuition about the logic of colour relations is to be taken near-literally. Starting from the Aristotelian oppositions between propositions as represented in the logical square of oppositions on the one hand and oppositions between primary and secondary colors as represented in an octahedron on the other, it will be shown algebraically how definitions for the former carry over to the realm of colour categories and describe very precisely the relations obtaining between (...) the known primary and secondary colours. Linguistic evidence for the reality of the resulting isomorphism will be provided. For example, the vertices that resist natural single-item lexicalization in logic (such as the O-corner, for which there is no natural lexicalization *nall (=not all)) are not naturally lexicalized in the realm of colour terms either. From the perspective of the architecture of cognition, the isomorphism suggests that the foundations of logical oppositions and negation may well be much more deeply rooted in the physiological structure of human cognition than is standardly assumed. (shrink)

The present article focuses on the case of the 2012 hunger-strike of Palestinian prisoners in Israeli jails. We analyze the ethical dilemma involved in the way the Israeli medical community reacted to these hunger-strikes and the question of force feeding within the context of the fundamental dual-loyalty structure inherent in the Israeli Prison Services—system. We argue that the liberal perspective that focuses the discussion on the dilemma between the principle of individual autonomy and the sanctity of life tends to be (...) oblivious to the asymmetrical relation of power that characterizes the prison system and to the socio-political context in which hunger-strikes take place. Emphasizing hunger-strikes as political acts implies that health practitioners’ conducts cannot be analyzed only through the prism of clinical medical ethics. It requires a public health ethics’ approach, an approach that understands health in the context of the complex relationship between society, state, organizations, communities and individuals. The authors are both academics and volunteers in Physicians for Human Rights—Israel thus our analysis is based both on sociological and public health ethics principles and on the continuous work and advocacy for the right to health of prisoners. (shrink)

Depuis quelques années, un mouvement d'idées venu des Etats-Unis, qualifié de "Révolution transhumaniste", a pris un essor considérable. Demain, on vivra 200 ou 300 ans... et bien sûr en parfaite santé : l'immortalité n'est pas loin! Ces prophéties s'appuient sur les avancées réelles de l'intelligence artificielle et de la recherche en biologie, en particulier dans le domaine du vieillissement, passant ainsi allègrement de l'homme préservé et/ou augmenté à un véritable homme dieu. Mais dès que l'on s'intéresse au cerveau, les données, (...) particulièrement complexes, ne vont pas dans leur sens. Il existe une contradiction criante entre la jeunesse éternelle promise et la réalité actuelle, marquée en particulier par les échecs thérapeutiques répétés dans les maladies neurodégénératives. Forts de leur expérience et de leur autorité dans le domaine des neurosciences et du vieillissement, Danièle Tritsch et Jean Mariani dénoncent l'imposture du transhumanisme et ses excès ou délires, données scientifiques à l'appui. De façon accessible et vivante, avec de nombreux exemples de la vie quotidienne, ils démontrent que les efforts lents et soutenus de la recherche biologique et médicale - auxquels contribuera l'intelligence artificielle - restent la seule voie pour comprendre le fonctionnement du cerveau, le maintenir en bonne santé (cerveau préservé), le doter de capacités nouvelles (cerveau augmenté) et, dans un délai non prévisible, guérir ou stabiliser les maladies neurodégénératives (cerveau réparé). L'homme dieu, quant à lui, ne s'appuie sur rien de tangible. (shrink)

In this paper, I present an interpretation of Wittgenstein's remarks on the experience of wonder at the existence of the world. According to this interpretation, Wittgenstein's feeling of wonder stems from perceiving the existence of the world as an absolute miracle, that is, as a fact that is in principle beyond explanation. Based on this analysis, I will suggest that Wittgenstein's experience is akin to what has been described by other authors such as Coleridge, Pessoa, Heidegger, Scheler, Sartre, and Hadot, (...) among many others. Through a comparison between Wittgenstein and Coleridge on the experience of existence, I shall highlight some core features of this experience, chief among them the use of the notion of nothingness in clarifying what is understood in the experience, the role of intuition, and the presence of a specific pathos. As a whole, this paper aims to provide a contribution to the project of a phenomenology of the experience of existence and intends to create a bridge for a dialogue between Wittgenstein and the phenomenological tradition on the enigma of existence. (shrink)

Evoquant au passage l'axolotl, ce poisson mexicain qui nous ressemble, comme le jaguar de la brousse brésilienne ou le loup des contes enfantins, discutant avec Platon, Albert Einstein ou... Michael Jackson, se prenant à l'occasion pour Sherlock Holmes, le narrateur écrit dix lettres à sa " belle amie". Qui correspondent à autant de moments clés du " voyage" à travers le temps accompli par cette étrange espèce animale qu'on appelle les hommes. Contrairement à l'idée reçue, notre espèce se caractérise non (...) pas par sa supériorité sur le reste de la création mais par sa forme inachevée, sa faiblesse "naturelle" constitutive. Un "manque de nature ", donc, que seule peut compenser la culture, autrement dit les discours et récits comme les sciences et techniques qui permettent à l'être humain d'agir sur le monde pour mieux l'habiter. A moins qu'en voulant construire une " surhumanité " réservée à quelques-uns l'on ne mette en jeu la survie même de l'espèce... Peut-être n'est-il pas trop tard pour non seulement s'indigner mais aussi résister, nous dit Dany-Robert Dufour en conclusion de ce beau texte lisible par tout le monde. A travers lequel il poursuit en philosophe son travail de critique radicale mais constructive du monde contemporain. (shrink)

Transmission of justification across inference is a valuable and indeed ubiquitous epistemic phenomenon in everyday life and science. It is thanks to the phenomenon of epistemic transmission that inferential reasoning is a means for substantiating predictions of future events and, more generally, for expanding the sphere of our justified beliefs or reinforcing the justification of beliefs that we already entertain. However, transmission of justification is not without exceptions. As a few epistemologists have come to realise, more or less trivial forms (...) of circularity can prevent justification from transmitting from p to q even if one has justification for p and one is aware of the inferential link from p to q. In interesting cases this happens because one can acquire justification for p only if one has independent justification for q. In this case the justification for q cannot depend on the justification for p and the inferential link from p to q, as genuine transmission would require. The phenomenon of transmission failure seems to shed light on philosophical puzzles, such as Moore's proof of a material world and McKinsey's paradox, and it plays a central role in various philosophical debates. For this reason it is being granted continued and increasing attention. (shrink)

I discuss Aristotle's treatment of essence and definition in Metaphysics VII.4. I argue that it is coherent and perfectly in accord with its broader context. His discussion in VII.4 offers, on the one hand, minimal criteria for what counts as definition and essence for whatever kind of object, but also, on the other hand, stronger criteria for a primary sort of definition and essence—and thereby it serves the interest of book VII in pointing to the explanatory power of the essence (...) of composite substances. (shrink)