A new axiomatic treatment of equilibrium thermodynamics—thermostatics—is presented. The equilibrium states of a thermal system are assumed to be represented by a differentiable manifold of dimensionn + 1 (n finite). The empirical temperature is defined by the notion of thermal equilibrium. Empirical entropy is shown to exist for all systems with the property that the total work delivered along closed adiabats is zero. Absolute entropy and temperature follow from the additivity of heat and energy for two separate systems in thermal (...) equilibrium considered as a whole. The absolute temperature is defined up to a multiplicative constant. The exterior differentiable calculus of Cartan is introduced and in a subsequent paper its use for the derivation of standard results in thermostatics will be explained. (shrink)

This book is devoted to a thorough analysis of the role that models play in the practise of physical theory. The authors, a mathematical physicist and a philosopher of science, appeal to the logicians’ notion of model theory as well as to the concepts of physicists.

Two alternative accounts of quantum spontaneous symmetry breaking (SSB) are compared and one of them, the decompositional account in the algebraic approach, is argued to be superior for understanding quantum SSB. Two exactly solvable models are given as applications of our account -- the Weiss-Heisenberg model for ferromagnetism and the BCS model for superconductivity. Finally, the decompositional account is shown to be more conducive to the causal explanation of quantum SSB.

Dual task is known to affect postural stabilty in children. We explored the effect of visual tasks on postural control in dyslexic and in age-matched non-dyslexic children. Thirty dyslexic children (mean age: 9.80 ± 0.28 years) were compared with thirty non-dyslexic children (mean age: 9.92 ± 0.35 years). All children underwent ophthalmologic and optometric evaluation. Eye movements were recorded by a video-oculography system (EyeBrain ® T2) and postural sway was recorded simultaneously by a force platform (TechnoConept®). Both groups of children (...) performed fixations, pursuits, pro- and anti-saccades tasks. Dyslexic children showed significantly poor near fusional vergence ranges (convergence and divergence) with respect to the non-dyslexic children. During the postural task, quality of fixation and anti-saccade performance in dyslexic children were significantly worse compared to non-dyslexic children. In contrast, the number of catch-up saccades during pursuits and the latency of pro-and anti-saccades were similar in both groups of children examined. Concerning postural quality, dyslexic children were more unstable than age-matched non-dyslexic children. For both groups of children tested we also observed that executing saccades (pro- and anti-saccades) reduced postural values significantly in comparison with fixation and pursuit tasks. The impairment in convergence and divergence fusional capabilities could be due to an immaturity in cortical structures controlling the vergence system. The poor oculomotor performance reported in dyslexic children suggested a deficit in allocating visual attention and their postural instability observed is in line with the cerebellar impairment previously reported in dyslexic children. Finally, pro- or anti-saccades reduce postural values compared to fixation and pursuit tasks in both groups of children tested, suggesting a different influence of visual tasks on postural control according to their attentional demand. (shrink)

After the end of their time as a caregiver, former caregivers have needs and feelings that have been subject to little study to date. The aim of the study is to determine and analyse the feelings, perceptions and practices of former caregivers in the reconstruction of their daily lives. This is a qualitative study based on the Grounded Theory developed by Charmaz. The study involved 14 former caregivers who had cared for their relative for more than 2 years and who (...) had stopped caring for them more than 2 years previously. Fourteen in-depth interviews were conducted and data were collected over 13 months between 2015 and 2017. Data were analysed using the Grounded Theory Method. In addition, this study was approved by the ethics committee of the Institut Universitari d’Investigació en Atenció Primària Jordi Gol. The former caregiver experiences a transition, which begins in the days before the death of their relative and may continue for more than 3 years. Three critical moments in the post-caring transition were found: the post-caring emptiness; the end of the period as a caregiver; and the movement towards a new life. Family and professional support is needed during this transition. Former caregivers experience a transition in the rebuilding of their daily lives; furthermore, former caregivers may be a source of support for other caregivers, which is linked to positive mental health factors. Healthcare organisations need to acknowledge the emotional, psychosocial and psychological health of former caregivers. (shrink)

A quelle condition peut-on associer ou croiser la réflexion sur la temporalité vécue et la réflexion sur le temps historique? Pour répondre, l'auteur dégage le messianisme juif des philosophies de l'histoire, relit les doctrines du temps nées dans la philosophie classique allemande et retrouve les pensées messianiques contemporaines. Il analyse enfin les différentes facettes du temps humain.

La nomination des phénomènes sociaux par les spécialistes cherche à les débarrasser des contenus moraux ou idéologiques que véhiculent les termes courants et vise leur objectivation. L’exercice est difficile, car, bien souvent, les nouveaux termes proposés peuvent générer des interprétations qui trahissent les intentions de leurs auteurs. Les glissements sont encore plus importants lorsque ces termes sont repris et légitimés par les institutions. L’auteur prend pour exemple deux termes, celui de familles monoparentales et celui d’hébergement alterné. Il analyse les connotations (...) et les dénégations symboliques dont ces deux termes sont porteurs et montre l’importance du pouvoir des mots. (shrink)

La controverse et le débat sur la phénoménologie transcendantale de Husserl et l’ontologie fondamentale de Heidegger sont devenus un thème central des révisions philosophiques, en grande partie et d’abord grâce aux efforts de philosophes tels que Ludwig Landgrebe, Eugen Fink et Roman Ingarden. Jan Patočka, lui aussi, a apporté une contribution importante au débat, qui n’est malheureusement pas toujours reconnue. Il présente une analyse fondamentale de la phénoménologie asubjective selon laquelle les philosophies de Husserl et de Heidegger n’ont pas entièrement (...) réussi à surmonter le cartésianisme et selon laquelle ces dernières n’ont pas donné les mêmes réponses à la question du fondement dernier de l’apparition de l’apparaissant. L’auteur de cet essai examine leurs contradictions de manière assez détaillée. Plus précisément, il vise à démontrer l’importance des critiques de Patočka pour comprendre sa doctrine non cartésienne de la phénoménologie asubjective, qui s’est en fait formée en opposition aux apparentes insuffisances tant de Husserl que de Heidegger. Le lecteur peut maintenant voir en détail comment Patočka lui-même cherche à y remédier dans sa pensée ultérieure et comment on peut échapper au péril du subjectivisme. Avec ces considérations en arrière-plan, cet exposé présente la phénoménologie asubjective comme une méthodologie philosophique viable et pertinente. (shrink)

La pensée de Jean-Jacques Rousseau est essentiellement une pensée politique, qui oscille entre un pôle transpolitique, que le citoyen de Genève incarne, par exemple, dans les personnages du législateur, du pédagogue et du sage, et un pôle prépolitique, où figurent l'homme naturel, le marginal et l'homme sensible. C'est en examinant quelques pages de trois grandes oeuvres de Rousseau: l'« Emile », « Du contrat social » et « Julie ou la Nouvelle Héloïse », que je tenterai d'éclaircir brièvement ces points. (...) Ainsi sera manifestée l'actualité des paradoxes rousseauistes.Rousseau's thought is essentially a political thought that swings from a transpolitical pole, presented through the figures of the legislator, the pedagogue and the wise man, and a prepolitical pole, where we meet natural man, the outsider and the man of exquisite sensibility. This theme is brought to light through a partial analysis of three of Rousseau's major works : " Emile ", " Du contrat social " and the "Nouvelle Héloïse". In this way, it is hoped that Rousseau's paradoxes will be shown to have meaning for our contemporaries. (shrink)

Evocation de la découverte de l'Orient par Teilhard de Chardin et analyse de la vision teilhardienne de ce que devrait apporter l'Orient à l'Occident. L'originalité de sa démarche se caractèrise par l'intégration du phénomène religieux au coeur du phénomène humain et plus précisément par l'idée d'une "convergence des religions".

ome Remarks on the Crisis of Capitalism What are the causes and consequences of the crisis of capitalism ? What are the plausible scenarios forthe outcome of the crisis ? To what extent is the current crisis comparable to that of 1929, and to whatextent does it differ from the crisis of the 1970s ? To what extent can one speak of a crisis of neoliberalism ? These are some of the questions which the authors of The Crisis of Neoliberalism (...) address here. (shrink)

Diese vergleichende Analyse der Texte Emil Ciorans und Josef Winklers impliziert eine Gegenüberstellung der Themen und Motive, der literarischen Strategien sowie der poetisch-ästhetischen Grundhaltungen beider Autoren. Die komparatistische Studie beleuchtet Winklers Selbstverständnis als Schriftsteller aus verschiedenen Blickwinkeln. Aus dem Vergleich mit Cioran eröffnen sich neue Erkenntnismöglichkeiten: Winklers Affinitäten zu den französischen Existentialisten, Jean Genet und Jean Amery, die Oszillation zwischen Aphorismus, Fragment und Erzählung, die Harmonie der Gegensätze in seinen Romanen. Als Leitmotive der Werke Ciorans und Winklers erweisen sich (...) die Kategorien von Außenseitertum und metaphysischem Exil. Als existentielle Außenseiter fungieren Winklers Romanfiguren und das metaphysische Exil artikuliert die Lebenssituation des Vereinzelten in Ciorans Werk. Die Stileigenheiten der beiden Autoren, die Auseinandersetzung mit der Sprache und die Verführung des Schweigens werden unter dem Aspekt des «sprachlichen Exils» herausgearbeitet. (shrink)

Arguments by Sorkin (Impossible measurements on quantum fields. In: Directions in general relativity: proceedings of the 1993 International Symposium, Maryland, vol 2, pp 293–305, 1993) and Borsten et al. (Phys Rev D 104(2), 2021. https://doi.org/10.1103/PhysRevD.104.025012 ) establish that a natural extension of quantum measurement theory from non-relativistic quantum mechanics to relativistic quantum theory leads to the unacceptable consequence that expectation values in one region depend on which unitary operation is performed in a spacelike separated region. Sorkin [ 1 ] labels (...) such scenarios ‘impossible measurements’. We explicitly present these arguments as a no-go result with the logical form of a reductio argument and investigate the consequences for measurement in quantum field theory (QFT). Sorkin-type impossible measurement scenarios clearly illustrate the moral that Microcausality is not by itself sufficient to rule out superluminal signalling in relativistic quantum theories that use Lüders’ rule. We review three different approaches to formulating an account of measurement for QFT and analyze their responses to the ‘impossible measurements’ problem. Two of the approaches are: a measurement theory based on detector models proposed in Polo-Gómez et al. (Phys Rev D, 2022. https://doi.org/10.1103/physrevd.105.065003 ) and a measurement framework for algebraic QFT proposed in Fewster and Verch (Commun Math Phys 378(2):851–889, 2020). Of particular interest for foundations of QFT is that they share common features that may hold general morals about how to represent measurement in QFT. These morals are about the role that dynamics plays in eliminating ‘impossible measurements’, the abandonment of the operational interpretation of local algebras \({\mathcal {A}}(O)\) as representing possible operations carried out in region _O_, and the interpretation of state update rules. Finally, we examine the form that the ‘impossible measurements’ problem takes in histories-based approaches and we discuss the remaining challenges. (shrink)