This book provides a general survey of the main concepts, questions and results that have been developed in the recent interactions between quantum information, quantum computation and logic. Divided into 10 chapters, the books starts with an introduction of the main concepts of the quantum-theoretic formalism used in quantum information. It then gives a synthetic presentation of the main “mathematical characters” of the quantum computational game: qubits, quregisters, mixtures of quregisters, quantum logical gates. Next, the book investigates the puzzling entanglement-phenomena (...) and logically analyses the Einstein–Podolsky–Rosen paradox and introduces the reader to quantum computational logics, and new forms of quantum logic. The middle chapters investigate the possibility of a quantum computational semantics for a language that can express sentences like “Alice knows that everybody knows that she is pretty”, explore the mathematical concept of quantum Turing machine, and illustrate some characteristic examples that arise in the framework of musical languages. The book concludes with an analysis of recent discussions, and contains a Mathematical Appendix which is a survey of the definitions of all main mathematical concepts used in the book. (shrink)

Coherent-ambiguity aversion is defined within the smooth-ambiguity model as the combination of choice-ambiguity and value-ambiguity aversion. Five ambiguous decision tasks are analyzed theoretically, where an individual faces two-stage lotteries with binomial, uniform, or unknown second-order probabilities. Theoretical predictions are then tested through a 10-task experiment. In tasks 1–5, risk aversion is elicited through both a portfolio choice method and a BDM mechanism. In tasks 6–10, choice-ambiguity aversion is elicited through the portfolio choice method, while value-ambiguity aversion comes about through the (...) BDM mechanism. The behavior of over 75 % of classified subjects is in line with the KMM model in all tasks 6–10, independent of their degree of risk aversion. Furthermore, the percentage of coherent-ambiguity-averse subjects is lower in the binomial than in the uniform and in the unknown treatments, with only the latter difference being significant. The most part of coherent-ambiguity-loving subjects show a high risk aversion. (shrink)

Central figures in the phenomenological tradition, such as Aron Gurwitsch, Jean-Paul Sartre, and Maurice Merleau-Ponty, drew extensively on gestalt psychology in their writings. The dialogue between phenomenology and psychology they began continues today in the field of embodied cognitive science. We take up this conversation starting from Aron Gurwitsch’s rich phenomenological analysis of the perception of the cultural world. Gurwitsch’s phenomenological descriptions of the perception of the cultural world bear a striking resemblance to work in embodied cognitive science that takes (...) its inspiration from Gibson’s ecological psychology. Gibson coined the term “affordance” to refer to the possibilities for action that can be directly perceived by persons [Gibson 1979]. However, Gibson from his earliest writings made a distinction between a universal, strictly individual and nonsocial form of perception and a perception of the world that was subject to social and cultural influences. We use Gurwitsch to argue against Gibson’s individualist understanding of direct perception. Each affordance that can be selected as an object of perception refers to a wider sociocultural context, which Gurwitsch called an “order of existence”. We end our paper by taking up the question of the relation of phenomenological description of the perceptual world and explanations of perceptual experience provided by embodied cognitive science. (shrink)

What is 'rebirth' in Buddhism? The contribution of hypnotic regression.

This book explores the significance of rhetoric from the perspective of its complex relationship with philosophy. It demonstrates how this relationship gives expression to a basic tension at the core of politics: that between the contingency of its happening and the transcendence toward which it strives. The first part of the study proposes a reassessment of the ancient quarrel between philosophy and rhetoric, as it was discussed by Plato, Aristotle, and above all Cicero and Quintilian, who ambitiously attempted to bring (...) them together creating an ideal that is at the roots of the humanist tradition. It then moves to twentieth-century political theory and shows how the questions that emerge from that quarrel still strongly resonate in the works of key thinkers such as H. Arendt, L. Strauss, and R. Rorty. The volume thus offers an original contribution that locates itself at the intersection of politics, rhetoric, and philosophy. (shrink)

Dans la mythologie grecque, Prométhée - le 'prévoyant' - déroba le feu aux dieux et le transmit aux hommes. Zeus, courroucé par ce transfert technologique, condamna Prométhée à un châtiment itéré à l'identique, à l'infini, algorithmique. Le problème que pose l'ancien mythe est celui des limites de la connaissance. En termes modernes, jusqu'à quel point pouvons-nous transformer la nature sans une connaissance des conséquences de nos actions sur elle? Cette question nous pousse à analyser les limites des sciences : à (...) une techno-science devenue toujours plus invasive, la science répond en se donnant à elle-même des limites"--Page 4 of cover. (shrink)

The character of Paris in the Ilias Latina maintains the ambiguity that characterises him in the Greek Iliad, where he does not lack military attitudes, but chafes against his duties to his country, being committed instead to satisfying his taste for luxury. This ambiguity is even reinforced in the epitome. The ‘heroic’ aspect of Paris’ personality emerges in a clearer light, expressed in a more mature awareness of his obligations to his family and country, but the other aspect, his indolence, (...) is also accentuated: the character becomes a true elegiac lover, immersed in the experience of an exalted passion that partly distinguishes him from the cliché of the libertine of the Homeric tradition. It might therefore seem legitimate to interpret the Paris of the Ilias Latina in a more positive key than the Homeric character. However, this exegesis is opposed by the judgement expressed by the authorial voice at many significant points of the story: by his dissolute and unscrupulous behaviour, Paris has started a war that will lead to the ruin of his country; he himself is thus his own funesta ruina (234), the funesta... flamma (253) that will burn down Troy and his own fate. (shrink)

Security in International Relations has undergone profound changes since the end of the Cold War. After the end of bipolarism the system of International Relations has experienced three main variations concerning structure, provision and perception of security. First of all, the international arena must deal with the consequences of the progressive decline of sovereignty and the shifting from a statocetric to a multicentric model of global relations; secondly, non-state actors are emerging as brand-new providers of security in many parts of (...) the world; finally, new representations of security are shaping the social perception of “safety” pointing out the needs to give certainty and protection to single, weak persons as the real target for collective international security produced by responsible states. (shrink)

This article proposes an interpretation of the work of Giambattista Vico in order to show its relevance for the current debate between liberal universalism and its critics. After a critical reconstruction of its origin at the dawn of Modernity, and having iden- tified rationalism as one of its decisive features, we shall analyse some of the criticisms currently levelled against it by various postmodern authors. The work of Vico and of the traditions from which he drank are found to be (...) a rich source of ideas that may lead us toward a way out of the dead-end that this debate is currently facing. (shrink)

The ArgumentIn this article we throw more light on Einstein's position as a pacifist and democrat during World War I than was possible up to now. This results from a systematical search for and evaluation of published and unpublished documents. Among others, it was possible to give evidence of Einstein's radicalization and to clear up the circumstances of his public appearance during the troublesome days of the Revolution in November 1918. Einstein's role in the Bund Neues Vaterland and other pacifist (...) organizations and his interaction with other pacifists in Germany and abroad is exposed in detail and interpreted. In contrast to the generally accepted view, we give a reappraisal of Einstein's activity and show that his pacifism was always of a humanitarian nature. He only rarely applied social and political categories to the happenings during the war. Due to his main focus on physics Einstein's pacifism remained one more of creed than of deed. (shrink)

Brains are information processing systems whose operational principles ultimately cannot be understood without resource to information theory. We suggest that understanding how external signals are represented in the brain is a necessary step towards employing further engineering tools to understand the information processing performed by brain circuits during behaviour.

L'uomo è l'essere aperto, mancante, indefinito, in quanto tale bisognoso al suo essere.

Both W.D. Ross's and J. Brunschwig's editions of Aristotle's Topics contain the following passage: ἔτι εἰ τοῦ αὐτοῦ τινος τὸ μὲν μᾶλλον τὸ δὲ ἧττον τοιοῦτο· καὶ εἰ τὸ μὲν τοιούτου μᾶλλον τοιοῦτο, τὸ δὲ μὴ τοιούτου, δῆλον ὅτι τὸ πϱῶτον μᾶλλον τοιοῦτο. The passage is translated in the revised Oxford translation as follows: ‘Moreover, if in any character one thing exceeds and another falls short of the same standard; also, if the one exceeds something which possesses the character, while (...) the other exceeds something which does not, then clearly the first thing exhibits that character in a greater degree’. (shrink)