L'auteur a suivi scrupuleusement les textes de René Thom pour remarquer que cet auteur n'accepte pas les modèles cognitifs, qui sont, à juste titre, le prolongement de la logique formelle moderne (qu'il refuse) et un domaine propice à la quantification qui n'a pas droit de cité dans le modélisme tel qu'il le conçoit. En effet, Thom se désintéresse de l'analyse dite compartimentale, malgré quelques signes de ressemblance avec celle-ci. Sa pensée modélisatrice est manifestement différente de celle de Legay qui le (...) prend pourtant pour guide. L'exemple recommandé du "modélisme physique" se trouve couramment chez Bohr qui a pensé le modèle de l'atome. Il s'agit de cette manière de modéliser qui, tout en s'attachant à l'abstraction, notamment mathématique - puisqu'un modèle est toujours une idée - pense le réel comme il se doit. (shrink)

Name der Zeitschrift: Das Mittelalter Jahrgang: 20 Heft: 1 Seiten: 47-61.

The distinction between normative and objective knowledge and how social scientist imagine that their research is solely built on objectivity is currently being challenged especially in the political science field. If we take culture as an example and more specifically the question of identity and identity politics in the Middle East, we will find that the current modus operandi in political science research is distancing itself from objective knowledge because of the increased focus in the field on quantification. Whether one (...) analyzes the work of Telhami on Identity in the Middle East, or Lynch’s “The Arab Uprisings Explained”, one will find that they all reflect on the academic conundrum that the field is facing. (shrink)

In the history of science, the birth of classical chemistry and thermodynamics produced an anomaly within Newtonian mechanical paradigm: force and acceleration were no longer citizens of new cited sciences. Scholars tried to reintroduce them within mechanistic approaches, as the case of the kinetic gas theory. Nevertheless, Thermodynamics, in general, and its Second Law, in particular, gradually affirmed their role of dominant not-reducible cognitive paradigms for various scientific disciplines: more than twenty formulations of Second Law—a sort of indisputable intellectual wealth—are (...) conceived after 1824 Sadi Carnot’s original statement and a multitude of entropy functions are proposed after 1865 Clausius’ former definition. Furthermore, at the end of nineteenth century, thermodynamics extended its cognitive domain to chemistry. Mainly thanks to Gibbs, a brand new discipline—chemical thermodynamics or physical chemistry—gradually affirmed its role inside the scientific community. This paper reports the former results of collaborative research program in the History and Epistemology of Science as well as Nature of Science Teaching aimed at retracing the foundations of the physical chemistry. Specifically, the research is structured in three parts: historical-epistemic reflections on fundamental thermodynamic concepts and principles—such as reversible process, heat, temperature, thermal equilibrium and Clausius’ Second Law—that play a structural role inside modern physical chemistry; panoramic overview on the entropy, whose polysemy makes it one of the most demanding concepts for scholars, teachers and students while approaching thermodynamics; conceptualization of chemical equilibrium as complex entity according to the dual epistemological approach offered by Gibbs’ thermodynamic model and the kinetic standpoint by Guldberg and Waage. In particular, the present work details an original reading of thermodynamic principles with the aim of setting forth a rationalized multidisciplinary substrate whereon the foundational concepts of reversible process and thermal equilibrium can be set. (shrink)

BackgroundIn their professional practice, teachers can exert a strong influence on students, promoting healthy habits for life through the example of their own lifestyle. The aim of this study was to compare sports habits and attitudes in Physical Activity and Sports Education students at the universities of León and Mostaganem.MethodsWe administered the “Motivations and Attitudes Toward Physical Activity and Sports” questionnaire to 125 Algerian university students from the Institute for Physical Education and Sport and 122 Spanish university students from the (...) Faculty of Physical Activity and Sport Science.ResultsChi-square tests showed significant differences with a large effect size in perceptions of sport and satisfaction with participation.ConclusionThe students from Mostaganem and Leon show many similarities, such as the number of female students in physical education and sport is quite small compared to male students. Both consider that universities should improve sports facilities to promote good practice. The practice of sports by our university students is far superior to that of students with other degrees, suggesting that they will set a good example of healthy habits once they enter their profession. Nevertheless, the participation of female Algerian students in sport was lower than that of Spanish students, and students at León showed more intrinsic motivation for participating in sport than their counterparts at Mostaganem. (shrink)

In the history of science, the birth of classical chemistry and thermodynamics produced an anomaly within Newtonian mechanical paradigm: force and acceleration were no longer citizens of new cited sciences. Scholars tried to reintroduce them within mechanistic approaches, as the case of the kinetic gas theory. Nevertheless, Thermodynamics, in general, and its Second Law, in particular, gradually affirmed their role of dominant not-reducible cognitive paradigms for various scientific disciplines: more than twenty formulations of Second Law—a sort of indisputable intellectual wealth—are (...) conceived after 1824 Sadi Carnot’s original statement and a multitude of entropy functions are proposed after 1865 Clausius’ former definition. Furthermore, at the end of nineteenth century, thermodynamics extended its cognitive domain to chemistry. Mainly thanks to Gibbs, a brand new discipline—chemical thermodynamics or physical chemistry—gradually affirmed its role inside the scientific community. This paper reports the former results of collaborative research program in the History and Epistemology of Science as well as Nature of Science Teaching aimed at retracing the foundations of the physical chemistry. Specifically, the research is structured in three parts: historical-epistemic reflections on fundamental thermodynamic concepts and principles—such as reversible process, heat, temperature, thermal equilibrium and Clausius’ Second Law—that play a structural role inside modern physical chemistry; panoramic overview on the entropy, whose polysemy makes it one of the most demanding concepts for scholars, teachers and students while approaching thermodynamics; conceptualization of chemical equilibrium as complex entity according to the dual epistemological approach offered by Gibbs’ thermodynamic model and the kinetic standpoint by Guldberg and Waage. In particular, the present work details an original reading of thermodynamic principles with the aim of setting forth a rationalized multidisciplinary substrate whereon the foundational concepts of reversible process and thermal equilibrium can be set. (shrink)

This volume is based on the ongoing studies on post-Avicennian philosophy in the context of naturalising philosophy and science in Islam from the 12th to the 14th century - a topic that deserves the special attention of historians of Islamic intellectual history. The contributors address the following questions using case studies: What was philosophy all about from the 12th to the 14th century? And how did Muslim scholars react to it during the period under consideration? The present volume approaches complex (...) philosophical topics from different angles and is structured around six main sections: 1. Historical and Social Approaches to Philosophy, 2. Knowing the Unknown, 3. God, Man and the Physical World, 4. Universals, 5. Logic and Intellect, and 6. Anthropomorphism and Incorporealism"--Back cover. (shrink)

Connected devices, such as smartphones and tablets, are exposed to a large variety of attacks. Their protection is often challenged by their resource constraints in terms of CPU, memory and energy. Security chains, composed of security functions such as firewalls, intrusion detection systems and data leakage prevention mechanisms, offer new perspectives to protect these devices using software-defined networking and network function virtualization. However, the complexity and dynamics of these chains require new automation techniques to orchestrate them. This chapter describes an (...) automated orchestration methodology for security chains in order to secure connected devices and their applications. This methodology exploits process learning to establish behavioral models and infer security constraints represented as logical predicates. It then generates and merges a set of chains of security functions on the basis of these predicates. These chains are finally compiled into low-level configuration rules and deployed into the network, optimizing for the underlying topology. The benefits and limits of such a methodology combining machine learning and verification techniques are evaluated by a set of experimental results. (shrink)

After the birth of thermodynamics’ second principle—outlined in Carnot's Réflexions sur la puissance motrice du feu —several studies provided new arguments in the field. Mainly, they concerned the thermodynamics’ first principle—including energy conceptualisation—, the analytical aspects of the heat propagation, the statistical aspects of the mechanical theory of heat. In other words, the second half of nineteenth century was marked by an intense interdisciplinary research activity between physics and chemistry: new disciplines applied to the heat developed in the form of (...) analytical, mechanical and statistical theories. Inside all these theories, entropy—the brand-new function that Clausius coined in his Mechanical theory of heat—started to play a central epistemic role. In the present paper, we analyse some steps of the historical process of conceptualisation of such function from 1850 to 1902. Particularly, we retrace the historical–foundational path that—starting from Clausius’ Second Law—lead Boltzmann and Gibbs to their distinguished formulations of statistical entropy. As usual, our research has been unrolled through the analyses of primary sources and by leaning on critical readings of the secondary literature. As for the methodological approach, text analysis of historical documents constituted our privileged modus operandi. This paper is the expression of a collaborative historical research program focused on the thermodynamic foundations of physics–chemistry relationship; early results have already been published by the same authors upon the concepts of reversibility––and––thermal equilibrium. (shrink)

Danièle-Djamila Minne-Amrane, née à Neuilly-sur-Seine le 13 août 1939, est décédée à Alger le 11 février dernier. Son père, Pierre Minne, professeur de philosophie, ancien résistant puis militant anticolonial au Sénégal, en est expulsé en 1947. Il s’installe alors en Algérie, dans la campagne de Tlemcen où sa femme, Jacqueline Netter, allait devenir institutrice. Après son divorce, cette dernière se remarie avec Abdelkader Guerroudj et tous deux militent au PCA (parti communiste algérien). Da...

Focused on manifestation, semiotics has nevertheless constantly considered its surroundings, the imaginary that makes the image and gives it meaning. The article tries to problematize this relationship. It separates the picture from its imaginary share, the image, and seeks to support its general propositions on plastic analyzes, a painting by Francis Bacon, an installation by Abdelkader Benchamma and another installation by Adrien M and Claire B. It focuses on reductions and the tipping points of the picture, where the “opening” (...) occurs, striving for a structuring of its proposals. It thus instructs both sides of the enunciation, an enunciation centered on the visible and an invisible enunciation still premeditated by the enunciation. (shrink)