Is there more that one "Curie's principle"? How far are different formulations legitimate? What are the aspects that make it so scientifically fruitful, independently of how it is formulated? The paper is devoted to exploring these questions. We start with illustrating Curie's original 1894 article and his focus. Then, we consider the way that the discussion of the principle took shape from early commentators to its modern form. We say why we think that the modern focus on the inter-state version (...) of the principle loses sight of some of the most interesting significant applications of the principle. Finally, we address criticism of the principle put forward by Norton and purported counterexamples due to Roberts. (shrink)

Since March 2020, many countries throughout the world have been in lockdown in response to the COVID-19 pandemic. In Italy, the quarantine began on March 9, 2020, and containment measures were partially reduced only on May 4, 2020. The quarantine experience has a significant psychological impact at all ages but can have it above all on adolescents who cannot go to school, play sports, and meet friends. In this scenario, this study aimed to provide a general overview of the perceived (...) risk related to COVID-19 and the psychological experience of quarantine in a large sample of Italian adolescents. 978 adolescents (males = 339; females = 639) living in 13 Italian regions and attending upper secondary school (age range: 13–20, M = 16.57, SD = 1.20), responded to an internet-based questionnaire about perceived health risk related to COVID-19, knowledge and information on measures to control the pandemic, beliefs and opinions on stage two of the quarantine, and psychological experiences related to quarantine. 31.1% of the participants lived in "red zones," which are places where the government has imposed stricter measures of containment due to exponential and uncontrolled growth in contagion cases compared to other areas in Italy. According to our results, Italian adolescents had a low perception of risk of COVID-19. Perceived comparative susceptibility and perceived seriousness were also very low. However, they were aware of the restriction measures necessary to contain the spread of the virus, and they agreed with the limitations imposed by the government. Females and adolescents living in a “red zone” showed more significant psychological negative feelings about the quarantine experience. However, no significant differences were found about the regions where the teenagers of our sample live and the other variables related to the COVID-19 experience. This is very interesting data, leading us to hypothesize that the participants' negative feelings may be more related to the adolescent period than to the pandemic itself. (shrink)

In recent years, a change in attitude in particle physics has led to our understanding current quantum field theories as effective field theories. The present paper is concerned with the significance of this EFT approach, especially from the viewpoint of the debate on reductionism in science. In particular, it is a purpose of this paper to clarify how EFTs may provide an interesting case-study in current philosophical discussion on reduction, emergence and inter-level relationships in general.

The use of algorithmic prediction in insurance is regarded as the beginning of a new era, because it promises to personalise insurance policies and premiums on the basis of individual behaviour and level of risk. The core idea is that the price of the policy would no longer refer to the calculated uncertainty of a pool of policyholders, with the consequence that everyone would have to pay only for her real exposure to risk. For insurance, however, uncertainty is not only (...) a problem – shared uncertainty is a resource. The availability of individual risk information could undermine the principle of risk-pooling and risk-spreading on which insurance is based. The article examines this disruptive change first by exploring the possible consequences of the use of predictive algorithms to set insurance premiums. Will it endanger the principle of mutualisation of risks, producing new forms of discrimination and exclusion from coverage? In a second step, we analyse how the relationship between the insurer and the policyholder changes when the customer knows that the company has voluminous, and continuously updated, data about her real behaviour. (shrink)

Biological conservation has a long story, but what distinguishes Conservation Biology from previous conservation fields is its multidisciplinary scope and its character as a mission-oriented crisis discipline. These characteristics suggested the introduction of the metaphor of biological conservation as a sort of surgery. This paper is about the initial stages of such surgery. Firstly, some data about the so-called “Big Sixth”—the disease—will be presented together with some information about Conservation Biology—the surgeon. Then epistemic and epistemological difficulties in extinction assessment and (...) conservation prioritization, and triage in particular, will be pointed out. It will be argued that, while data deficiency arising from empirical and practical constraints can in principle be overcome, a different order of difficulties stems from the competition among several species concepts. In this case, it will be suggested that the extent of complications is of such significance to require a thorough re-assessment of the very nature of the patients, i.e., outside the metaphor, of the concept of species. (shrink)

Nel 2009, prendendo le mosse da articoli e libri pubblicati negli anni precedenti, Maurizio Ferraris proponeva la “documentalità”, una ontologia sociale che, a differenza della received view basata sull’intenzionalità collettiva, individuava il fondamento degli oggetti sociali negli atti iscritti. Prendendo come spunto due oggetti sociali tipicamente torinesi – il capoluogo piemontese è il luogo di nascita del filosofo – e cioè la casa automobilistica Fiat e l’Università di Torino, in questo breve saggio si discutono alcune tra le tesi che caratterizzano (...) una ontologia sociale siffatta. Particolare attenzione viene data alla tesi secondo cui l’identità di un oggetto sociale e la sua permanenza attraverso il tempo dipenderebbero dall’iscrizione che ne è alla base anziché, come per esempio nella posizione searliana, dall’oggetto fisico sottostante. Questa tesi, si sostiene, acquisisce particolare pregnanza nell’epoca del web, quell’acceleratore della documentalità, per dirla con le parole del filosofo, che ha la caratteristica di mostrare nella sua evidenza la struttura stessa della realtà sociale e, in tal modo, di diventare uno strumento per il cambiamento. Mettendo in luce la linea concettuale che unisce Documentalità (2009) con uno dei lavori più recenti di Ferraris, Mobilitazione totale (2015), si articola e si sostiene l’idea secondo cui il web svolge una duplice funzione. Da un lato, rivelare l’emergere della società dalla natura, riproducendo in tempi osservabili e in un ambiente monitorabile, quello di cui non è possibile essere spettatori diretti. Dall’altro, renderne evidente la struttura ultima che, appunto, è una struttura documentale. (shrink)

This is the first of two papers concerned with the philosophical significance of dualities as applied in recent fundamental physics. The general idea is that, for its peculiarity, this ‘new’ ingredient in theory construction can open unexpected perspectives in the current philosophical reflection on contemporary physics. In particular, today’s physical dualities represent an unusual type of intertheory relation, the meaning of which deserves to be investigated. The aim is to show how discussing this point brings into play, at the same (...) time, what is intended by a 'theory’ and in which sense dualities are to be considered 'symmetries'. This paper is introductory and focusses on the first form of duality explicitly applied in twentieth century physics, that is electromagnetic duality as discussed in Dirac’s theory of magnetic poles. The extension of electromagnetic duality in the context of quantum field theory and string theory is explored in a forthcoming companion paper. (shrink)

Nel 2009 esce Documentalità. Perché è necessario lasciar tracce di Maurizio Ferraris. Si tratta di un libro importante, per varie ragioni, ma qui vorremmo sottolinearne principalmente due. Innanzitutto, perché si pone come un’opera di rottura all’interno di una tradizione teorica consolidata – o, almeno, fino a quel momento assai poco movimentata. In secondo luogo, perché le tesi lì sostenute hanno degli esiti che vanno ben al di là della teoria. Cominciando con il primo punto, occorre ricord...

After having reconstructed a minimal biological characterisation of species, we endorse an “empirical approach” based on the idea that it is the peculiar evolutionary history of the species at issue—its peculiar origination process, its peculiar metapopulation structure and the peculiar mixture and strength of homeostatic processes vis à vis heterostatic ones—that determines species’ identity at a time and through time. We then explore the consequences of the acceptance of the empirical approach in settling the individuals versus kinds dispute. In particular, (...) while conceptual arguments have been proposed to show that species can be equally treated as individuals and kinds because mereology’s and set-theory’s languages are inter-translatable, we advance instead a causal argument to sustain the claim that each species is both a kind and an individual. (shrink)

Nella ricerca antropologica, la distinzione “natura/cultura” è considerata una delle dicotomie di base che soggiacciono – nel corso della storia – ai diversi modelli del mondo. Nei termini di questa distinzione ci orientiamo nell’ambiente che ci circonda, tracciamo distinzioni metafisiche, formuliamo giudizi di valore. Eppure, tanto questa opposizione è intuitiva e di immediata comprensione, tanto diventa sfuggente non appena si tenti di individuare dove sia il confine che la definisce, e di...

This paper is concerned with the problem of the validity of Leibniz's principle of the identity of indiscernibles in physics. After briefly surveying how the question is currently discussed in recent literature and which is the actual meaning of the principle for what concerns physics, we address the question of the physical validity of Leibniz's principle in terms of the existence of a sufficient number of naming predicates in the formal language of physics. This approach allows us to obtain in (...) a formal way the result that a principle of the identity of indiscernibles can be justified in the domain of classical physics, while this is not the case in the domain of quantum physics. (shrink)

The inflexion of pronouns varies in different Indo-European languages and so far, as it can be reconstructed, in the Proto-Indo-European it was different in several aspects from the inflexion of nouns and adjectives. In the course of time pronominal and nominal inflexions went through a process of mutual levelling. The analysis and comparison of the thematic and athematic nominal inflexions has shown that gendered pronouns played important role in the development of the thematic o-stem and eH2-stem substantives. The evidence of (...) the Greek language for the relationship of pronouns and other nomina is significant and complex at the same time, bearing in mind the individual development of Greek dialects and the archaic features of the earliest Greek records found in Mycenaean archives. The aim of this paper is to re-examine the evidence for the influence of pronominal on nominal inflexion found in Mycenaean Greek documents in the light of more recent studies and discuss its relevance for the earliest history of pronouns and nouns in the Greek language and the reconstruction of Proto-Indo-European. (shrink)

The concept of nature in Western thought has been informed by the assumption of a categorical distinction between natural and artificial entities, which goes back to John Stuart Mill or even Aristotle. Such a way of articulating the natural/artificial distinction has proven unfit for conservation purposes mainly because of the extent and the pervasiveness of human activities that would leave no nature left to be conserved, and alternative views have been advanced. In this contribution, after arguing for the importance of (...) the concept of naturalness as a guide for conservation, I will try to provide an account of the natural/artificial distinction suited to contemporary conservation framing. Focusing on a particular kind of objects that I suggest to name “environmental objects”, I propose and defend the view of “naturalness as independence” according to which the more or less an environmental object's identity conditions and survival depend on human intervention, the more or less that object is artificial or natural, respectively. According to this view, conserving environmental objects will equate to maintaining or improving their naturalness or even originating artificial objects that may become new natural objects. This view has the advantage, on the one hand, of providing a rationale for a distinction which is not only part of how people think, but also pervasive in conservation practices and policies and, on the other hand, of accounting for the global pervasiveness of human intervention in the so-called natural world. (shrink)

El presente artículo tiene como objetivo reconstruir la ética de la resistencia que Nietzsche propone en _El Anticristo _partiendo de la imagen que se ofrece en el prólogo a modo de declaración de intenciones: “preferible _vivir en medio del hielo_”. Dicha ética le exige al individuo la superación de la psicología de la convicción o de la fe y recurre, como método, a la Filología entendida como “_ephexis _en la interpretación”. La apropiación nietzscheana de ese término procedente del pirronismo obliga (...) a medir la utilidad de las enseñanzas escépticas para un individuo que aspira a autorrealizarse, _a llegar a ser el que es_. Con este fin ha de poner entre paréntesis los lugares comunes y asegurarse una posición hermenéutica propia que quiere evitar la_ des-simismación_ y que renuncia, por ello, a implicarse en la rutina democrática de las sociedades modernas. En sintonía con la sensibilidad pirrónica que anima a cultivar la distancia y la indiferencia, se acabará mostrando, en primer lugar, que Nietzsche se dirige exclusivamente a una comunidad de lectores afines y que, en segundo lugar, suspende la vocación política de su propuesta. (shrink)

This article deals with a phenomenological standpoint on paradoxicality of image-consciousness, i.e., an analogical representation in which an image possesses material support. Contrary to tradition, E. Husserl thought of imagination as being both an intuitive and a mediate act. Husserl’s opinion results from paradoxical nature of an image itself: an image appears but it doesn’t exist, while the exhibited thing does exist but doesn’t appear in proper sense. The paradoxicality of an image results in its double conflict — with actual (...) present and with Bildsujet. Initially, Husserl considered that the more analogous features an image possesses the less conflict exists between it and Bildsujet, but then his own experience made him change his mind. Examining a wax figure example, he came to the conclusion that this perfectly human-like object is rather a fiction than an image for it is constituted in a position-taking intention, not in a neutralized one. However, despite we’ve got knowledge of illusory nature of such an object our consciousness keeps on fluctuating between an imaging intention and a perceptual one. Unlike Husserl neither J.-P. Sartre nor M. Richir draws a distinction between an image and an illusion. Sartre considers the imaginary in its radical form to be a world of schizophrenic. As for Richir, he supposes the imaginary to be a mass-consumption product being used for ideological manipulations. He follows Plato’s intellectual strategy and characterizes an image as εἴδωλον which represents the reality instead of reaching it. Being saturated by visible an image lacks any gap that would give an impulse to a work of imagination. At the same time, Richir admits that simulacre does relate to art, whereas an artefact doesn’t. An artefact is made by technical device which imitates not reality but consciousness. Thus, an artefact in its turn is not a reality illusion but an illusion of a reality illusion. Its hallucinatory effect makes us believe that we look into a mirror of reality as if a technical agent had better access to it than a human eye does. (shrink)

This is the final draft of Chapter 4 of the Volume 'The Birth of String Theory' edited by A. Cappelli, E. Castellani, F. Colomo, and P. Di Vecchia, Cambridge University Press, forthcoming.

Visuo-motor adaptation to optical prisms displacing the visual scene (prism adaptation, PA) is a method used for investigating visuomotor plasticity in healthy individuals and, in clinical settings, for the rehabilitation of unilateral spatial neglect. In the standard paradigm, the adaptation phase involves repeated pointings to visual targets, while wearing optical prisms displacing the visual scene laterally. Here we explored differences in PA, and its aftereffects (AEs), as related to the sensory modality of the target. Visual, auditory, and multisensory - audio-visual (...) - targets in the adaptation phase were used, while participants wore prisms displacing the visual field rightwards by 10◦. Proprioceptive, visual, visual-proprioceptive, auditory-proprioceptive straight-ahead shifts were measured. Pointing to auditory and to audio-visual targets in the adaptation phase produces proprioceptive, visual-proprioceptive, and auditory-proprioceptive AEs, as the typical visual targets did. This finding reveals that cross-modal plasticity effects involve both the auditory and the visual modality, and their interactions (Experiment 1). Even a shortened PA phase, requiring only 24 pointings to visual and audio-visual targets (Experiment 2), is sufficient to bring about AEs, as compared to the standard 92-pointings procedure. Finally, pointings to auditory targets cause AEs, although PA with a reduced number of pointings (24) to auditory targets brings about smaller AEs, as compared to the 92-pointings procedure (Experiment 3). Together, results from the three experiments extend to the auditory modality the sensorimotor plasticity underlying the typical AEs produced by PA to visual targets. Importantly, PA to auditory targets appears characterized by less accurate pointings and error correction, suggesting that the auditory component of the PA process may be less central to the building up of the AEs, than the sensorimotor pointing activity per se. These findings highlight both the effectiveness of a reduced number of pointings for bringing about AEs, and the possibility of inducing PA with auditory targets, which may be used as a compensatory route in patients with visual deficits. (shrink)

RESUMENInvorme bibliográfico sobre Baltasar gracián que incluye las referencias de los años 1996-1998. Revisa y actualiza repertorios y bibliografías anteriores publicadas por la misma autora.GRACIÁN-FILOSOFÍA ESPAÑOLA-BARROCOABSTRACTBibliographical report on Baltasar Gracian that includes the references from 1996 to 1998. it revises and updates previous bibliographies published by the same author.KEYWORDSGRACIAN-SPANISH PHILOSOPHY.BARROQUE.

In the decade following hepatitis B vaccine’s 1981 approval, U.S. health officials issued evolving guidelines on who should receive the vaccine: first, gay men, injection drug users, and healthcare workers; later, hepatitis B-positive women’s children; and later still, all newborns. States laws that mandated the vaccine for all children were quietly accepted in the 1990s; in the 2000s, however, popular anti-vaccine sentiment targeted the shot as an emblem of immunization policy excesses. Shifting attitudes toward the vaccine in this period were (...) informed by hepatitis B’s changing popular image, legible in textual and visual representations of the infection from the 1980s through the 1990s. Notably, the outbreak of AIDS, the advent of genetically engineered pharmaceuticals, and a Democratic push for health reform shaped and reshaped hepatitis B’s public image. Hepatitis B thus became, in turn, an AIDS-like scourge; proof of a new era of pharmaceuticals; a threat from which all American children had a right to be protected; and a cancer-causing infection spread by teenage lifestyles. The metamorphosis of the infection’s image was reflected in evolving policy recommendations regarding who should receive the vaccine in the 1980s, and was key to securing broad uptake of the vaccine in the 1990s. (shrink)

This paper is devoted to examining the relevance of Dirac's view on the use of transformation theory and invariants in modern physics --- as it emerges from his 1930 book on quantum mechanics as well as from his later work on singular theories and constraints --- to current reflections on the meaning of physical symmetries, especially gauge symmetries.

Da sempre svalutato e marginalizzato dalla riflessione filosofica, il tema della cura č tornato a imporsi all'attenzione, particolarmente all'interno del pensiero femminista. A partire dal testo di Carol Gilligan In a different voice, si č sviluppato un dibattito che coinvolge molti approcci disciplinari. Ciň che tuttavia resta ancora inesplorato č il problema delle motivazioni che stanno a fondamento della relazione di cura. Qui la filosofia puň offrire il suo fondamentale contributo: riabilitare la cura significa ripensare il soggetto, per opporre al (...) paradigma moderno di un soggetto sovrano quello di un soggetto in relazione. La de-rimozione e la valorizzazione della costitutiva vulnerabilitÀ del soggetto consente di fondare l'universalitÀ della cura e di uscire dalla falsa alternativa tra individualismo e altruismo: vale a dire di pensare un soggetto capace di cura in quanto si riconosce a sua volta bisognoso di cura. (shrink)