L'autore parte dall'analisi dei problemi etici espressi nei linguaggi della poesia, della tragedia e della storiografia, per passare poi alla lettura delle maggiori opere del pensiero antico, fornendo di ognuna puntuali introduzioni. Un'attenzione particolare, alla fine di ogni capitolo, è dedicata all'eredità moderna e al significato attuale dei problemi dell'etica antica, proponendo in modo esplicito un collegamento fra ricostruzione storica e discussione teorica contemporanea.

A re-evaluation of the notion of vacuum in quantum electrodynamics is presented, focusing on the vacuum of the quantized electromagnetic field. In contrast to the ‘nothingness’ associated to the idea of classical vacuum, subtle aspects are found in relation to the vacuum of the quantized electromagnetic field both at theoretical and experimental levels. These are not the usually called vacuum effects. The view defended here is that the so-called vacuum effects are not due to the ground state of the quantized (...) electromagnetic field. Nevertheless it is possible to maintain an empirically demonstrable notion of vacuum state that is consistent with the interpretation of the formalism of the theory. (shrink)

In this paper, we will make explicit the relationship that exists between geometric objects and geometric figures in planar Euclidean geometry. That will enable us to determine basic features regarding the role of geometric figures and diagrams when used in the context of pure and applied planar Euclidean geometry, arising due to this relationship. By taking into account pure geometry, as developed in Euclid’s Elements, and practical geometry, we will establish a relation between geometric objects and figures. Geometric objects are (...) defined in terms of idealizations of the corresponding figures of practical geometry. We name the relationship between them as a relation of idealization. This relation, existing between objects and figures, is what enables figures to have a role in pure and applied geometry. That is, we can use a figure or diagram as a representation of geometric objects or composite geometric objects because the relation of idealization corresponds to a resemblance-like relationship between objects and figures. Moving beyond pure geometry, we will defend that there are two other ‘layers’ of representation at play in applied geometry. To show that, we will consider Euclid’s Optics. (shrink)

Despite that it is commonly accepted that migraine is a disorder of the nervous system with a prominent genetic basis, it is comorbid with a plethora of medical conditions. Several studies have found bidirectional comorbidity between migraine and different disorders including neurological, psychiatric, cardio- and cerebrovascular, gastrointestinal, metaboloendocrine, and immunological conditions. Each of these has its own genetic load and shares some common characteristics with migraine. The bidirectional mechanisms that are likely to underlie this extensive comorbidity between migraine and other (...) diseases are manifold. Comorbid pathologies can induce and promote thalamocortical network dysexcitability, multi-organ transient or persistent pro-inflammatory state, and disproportionate energetic needs in a variable combination, which in turn may be causative mechanisms of the activation of an ample defensive system with includes the trigeminovascular system in conjunction with the neuroendocrine hypothalamic system. This strategy is designed to maintain brain homeostasis by regulating homeostatic needs, such as normal subcortico-cortical excitability, energy balance, osmoregulation, and emotional response. In this light, the treatment of migraine should always involves a multidisciplinary approach, aimed at identifying and, if necessary, eliminating possible risk and comorbidity factors. (shrink)

Abstract We examine the construction of electromagnetism in its current form, and in an alternative form, from a point of view that combines a minimal realism with strict rational demands. We begin by discussing the requests of reason when constructing a theory and next, we follow the historical development as presented in the record of original publications, the underlying epistemology (often explained by the authors) and the mathematical constructions. The historical construction develops along socio-political disputes (mainly, the reunification of Germany (...) and the second industrial revolution), epistemic disputes (at least two demarcations of science in conflict) and several theories of electromagnetism. Such disputes resulted in the militant adoption of the ether by some, a position that expanded in parallel with the expansion of Prussia. This way of thinking was facilitated by the earlier adoption of a standpoint that required, as a condition for understanding, the use of physical hypothesis in the form of analogies; an attitude that is antithetic to Newton's “hypotheses non fingo”. While the material ether was finally abandoned, the epistemology survived in the form of “substantialism” and a metaphysical ether: the space. The militants of the ether attributed certainties regarding the ether to Faraday and Maxwell, when they only expressed doubts and curiosity. Thus, the official story is not the real history. This was achieved by the operation of detaching Maxwell's electromagnetism from its construction and introducing a new game of formulae and interpretations. Large and important parts of Maxwell work are today not known, as for example, the rules for the transformation of the electromagnetic potentials between moving systems. When experiments showed that all the theories based in the material ether were incorrect, a new interpretation was offered: Special Relativity (SR). At the end of the transformation period a pragmatic view of science, well adapted to the industrial society, had emerged, as well as a new protagonist: the theoretical physicist. The rival theory of delayed action at distance initiated under the influence of Gauss was forgotten in the midst of the intellectual warfare. The theory is indistinguishable in formulae from Maxwell's and its earlier versions are the departing point of Maxwell for the construction of his equations. We show in a mathematical appendix that such (relational) theory can incorporate Lorentz' contributions as well as Maxwell's transformations and C. Neumann's action, without resource to the ether. Demarcation criteria was further changed at the end of the period making room for habits and intuitions. When these intuited criteria are examined by critical reason (seeking for the fundaments) they can be sharpened with the use of the Non Arbitrariness Principle, which throws light over the arbitrariness in the construction of SR. Under a fully rational view SR is not acceptable, it requires to adopt a less demanding epistemology that detaches the concept from the conception, such as Einstein's own view in this respect, inherited from Hertz. In conclusion: we have shown in this relevant exercise how the reality we accept depends on earlier, irrational, decisions that are not offered for examination but rather are inherited from the culture. (shrink)

It is generally argued that if the wave-function in the de Broglie–Bohm theory is a physical field, it must be a field in configuration space. Nevertheless, it is possible to interpret the wave-function as a multi-field in three-dimensional space. This approach hasn’t received the attention yet it really deserves. The aim of this paper is threefold: first, we show that the wave-function is naturally and straightforwardly construed as a multi-field; second, we show why this interpretation is superior to other interpretations (...) discussed in the literature; third, we clarify common misconceptions. (shrink)

While ancient civilizations worshipped strong, active emotions, modern societies have favored more peaceful attitudes, especially within the democratic process. We have largely forgotten the struggle to make use of _thymos_, the part of the soul that, following Plato, contains spirit, pride, and indignation. Rather, Christianity and psychoanalysis have promoted mutual understanding to overcome conflict. Through unique examples, Peter Sloterdijk, the preeminent posthumanist, argues exactly the opposite, showing how the history of Western civilization can be read as a suppression and return (...) of rage. By way of reinterpreting the _Iliad_, Alexandre Dumas's _Count of Monte Cristo_, and recent Islamic political riots in Paris, Sloterdijk proves the fallacy that rage is an emotion capable of control. Global terrorism and economic frustrations have rendered strong emotions visibly resurgent, and the consequences of violent outbursts will determine international relations for decades to come. To better respond to rage and its complexity, Sloterdijk daringly breaks with entrenched dogma and contructs a new theory for confronting conflict. His approach acknowledges and respects the proper place of rage and channels it into productive political struggle. (shrink)

Written by one of Italy's leading contemporary thinkers and available in English for the first time, this book surveys the key themes in Continental aesthetics.

We present three rights-based approaches to research and policies on gender justice and equity in the context of climate change adaptation. After a short introduction, we describe the dominant discourse that frames climate change and provide an overview of the literature that has depicted women both as vulnerable victims of climatic change and as active agents in adaptive responses. Discussion follows on the shift from gendered impacts to gendered adaptive capacities and embodied experiences, highlighting the continuing impact of social biases (...) and institutional practices that shape unequal access to and control over household and community decision-making processes undermining timely, fair, and successful adaptive responses. Assessment of rights-based frameworks considers the space they provide in addressing persistent gender and other inequalities, at different political and operational scales. We argue that a human security framework is useful to fill the gap in current gender and climate justice work, particularly when implemented through the entry point of adaptive social protection. Gender justice in climate change adaptation is an obligation for transformational social change, not just rights. The time is ripe to replace narrow-minded vulnerability studies with a contextualized understanding of our mutual fragility and a commitment to enhanced livelihood resilience, worldwide. (shrink)

The purpose of this work is to address what notion of geometrical object and geometrical figure we have in different kinds of geometry: practical, pure, and applied. Also, we address the relation between geometrical objects and figures when this is possible, which is the case of pure and applied geometry. In practical geometry it turns out that there is no conception of geometrical object.

libro 1. Il Fedro.--libro 2. L'Ortensio.

I want to combine two hitherto largely independent research projects, scientific understanding and mechanistic explanations. Understanding is not only achieved by answering why-questions, that is, by providing scientific explanations, but also by answering what-questions, that is, by providing what I call scientific descriptions. Based on this distinction, I develop three forms of understanding: understanding-what, understanding-why, and understanding-how. I argue that understanding-how is a particularly deep form of understanding, because it is based on mechanistic explanations, which answer why something happens in (...) virtue of what it is made of. I apply the three forms of understanding to two case studies: first, to the historical development of thermodynamics and, second, to the differences between the Clausius and the Boltzmann entropy in explaining thermodynamic processes. (shrink)

The ontological models framework distinguishes ψ-ontic from ψ-epistemic wave- functions. It is, in general, quite straightforward to categorize the wave-function of a certain quantum theory. Nevertheless, there has been a debate about the ontological status of the wave-function in the statistical interpretation of quantum mechanics: is it ψ-epistemic and incomplete or ψ-ontic and complete? I will argue that the wave- function in this interpretation is best regarded as ψ-ontic and incomplete.

What does it take to understand a phenomenon ideally, or to the highest conceivable extent? In this paper, we answer this question by arguing for five necessary conditions for ideal understanding: (i) representational accuracy, (ii) intelligibility, (iii) truth, (iv) reasonable endorsement, and (v) fitting. Even if one disagrees that there is some form of ideal understanding, these five conditions can be regarded as sufficient conditions for a particularly deep level of understanding. We then argue that grasping, novel predictions, and transparency (...) are not reasonable conditions for ideal understanding. (shrink)

Philosophers now seem to agree that frequentism is an untenable strategy to explain the meaning of probabilities. Nevertheless, I want to revive frequentism, and I will do so by grounding probabilities on typicality in the same way as the thermodynamic arrow of time can be grounded on typicality within statistical mechanics. This account, which I will call typicality frequentism, will evade the major criticisms raised against previous forms of frequentism. In this theory, probabilities arise within a physical theory from statistical (...) behavior of almost all initial conditions. The main advantage of typicality frequentism is that it shows which kinds of probabilities (that also have empirical relevance) can be derived from physics. Although one cannot recover all probability talk in this account, this is rather a virtue than a vice, because it shows which types of probabilities can in fact arise from physics and which types need to be explained in different ways, thereby opening the path for a pluralistic account of probabilities. (shrink)

Philosophy of Physics has emerged recently as a scholarly important subfield of philosophy of science. However outside the small community of experts it is not a well-known field. It is not clear even to experts the exact nature of the field: how much philosophical is it? What is its relation to physics? In this work it is presented an overview of philosophy of physics that tries to answer these and other questions.

A powerful critique of nudge theory and the paternalist policies of behavioral economics, and an argument for a more inclusive form of rationality.

A filosofia alemã do século XIX posterior a Hegel está bastante estudada em três direções. A primeira, que surge da luta entre hegelianos de esquerda e direita, acaba por conduzir ao materialismo e ao marxismo; a segunda, que se expressa na vertente irracionalista e anti-sistemática, passa por Schopenhauer, Kierkegaard e Nietzsche; a terceira é constituída pelo neo-kantismo e suas derivações, cuja versão oficial teria suas raízes fincadas pelo famoso discurso inaugural de Zeller e pelo livro de Otto Liebmann, que deram (...) o impulso ao movimento “Zurück zu Kant”. Em tal visão de conjunto, o grande ausente é um movimento contínuo, ainda quando irregular e multifacetado, que terminará conduzindo à filosofia contemporânea. Este movimento tem em Trendelenburg uma figura chave. É com suas “Investigações Lógicas” que se inicia a reformulação das relações entre filosofia e ciência e, neste sentido, o verdadeiro retorno a Kant. O fato de sua obra principal ter exatamente o mesmo nome que a coleção de ensaios temáticos de Frege, a obra de ruptura de Husserl e as dissertações de doutorado de Cohen, Dilthey e Brentano significa algo mais que curiosas coincidências. “Zurück zu Kant” (Adolf Trendelenburg the overcoming of idealism and the roots of contemporary philosophy)Considering history of philosophy as a whole, the two main traditions of thought from the 20th century (analytic and phenomenological-hermeneutic) can be regarded as being variants of one same fundamental turn. This systematic relation is connected to a common historical root. To highlight it implies to review the ideas that are deeply in the basis of the historiography of the German thought in the 19th century. Beyond names, problems and theses that may appear to have at first sight no relationship whatsoever, we can notice a continuous unitary development that has not yet received all the attention it deserves. In this movement, Adolf Trendelenburg stands out, once the beginners of both the abovementioned traditions and of neokantianism (Frege, Brentano, Dilthey and Cohen) received a decisive impulse from his reflections. (shrink)

This paper investigates the historical origin and ancestors of typicality, which is now a central concept in Boltzmannian Statistical Mechanics and Bohmian Mechanics. Although Ludwig Boltzmann did not use the word typicality, its main idea, namely, that something happens almost always or is valid for almost all cases, plays a crucial role for his explanation of how thermodynamic systems approach equilibrium. At the beginning of the 20th century, the focus on almost always or almost everywhere was fruitful for developing measure (...) theory and probability theory. It was apparently Hugh Everett III who first mentioned typicality in physics in 1957 while searching for a justification of the Born rule in his interpretation of quantum mechanics. The historically closest concept before these developments is moral certainty, which was invented by the medieval French theologian Jean Gerson, and it became a standard concept at least until the Age of Enlightenment, when Jakob Bernoulli proved the Law of Large numbers. (shrink)

Let M be an o-minimal expansion of a real closed field. Let G be a definably compact definably connected abelian n-dimensional group definable in M. We show the following: the o-minimal fundamental group of G is isomorphic to ℤn; for each k>0, the k-torsion subgroup of G is isomorphic to n, and the o-minimal cohomology algebra over ℚ of G is isomorphic to the exterior algebra over ℚ with n generators of degree one.