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Le grand livre du droit du travail. Pour comprendre les nouvelles règles et en faire bon usage, 32e édition
No full textNational audienceLe droit du travail (Code du travail, jurisprudence, accords collectifs, etc.) applicable en France aujourd'hui, en intégrant les apports du droit européen et du droit international
Assessing the consistency of numerical models for wind instrument impedance
No full textInternational audienceNumerical simulation of the input impedance of wind instruments is the basis of much work in music acoustics. However, the accuracy and reproducibility of such simulations across different contributors remain little documented. This study aims to benchmark the reliability of numerical simulations for pipe impedance, focusing on simple geometries such as cylindrical and conical pipes, and to identify key factors influencing simulation variability.A collaborative approach was adopted, involving multiple contributors employing various numerical models, including TMM, FEM (1D or 3D), etc., and eventually different physical models for the propagation, the boundary conditions, and the thermo-viscous effects. Significant variability in simulation results was observed due to differences in implementation, numerical precision, and boundary condition modelling. Incomplete convergence in some methods also contributed to discrepancies. Despite these challenges, the collaborative work and exchanges reduced variability and improved consistency across contributors. The study highlights the importance of such benchmark and the interest to adopt good practices including verification of the numerical tools through comparative analysis and identification of convergence criteria. This work provides a framework for improving the reproducibility an accuracy of numerical simulations in musical acoustics context
Hybrid auxetics: Postponing failure with elastomer infiltration of Ti-6Al-4V lattices
No full textInternational audienceThis work examines how a soft elastomeric phase can be used to reinforce and delay the failure of additively manufactured metal lattice structures with auxetic geometry. A novel hexaround unit-cell was designed to ensure printability of Ti-6Al-4V via laser powder-bed fusion. Once infiltrated with a compliant polyurethane, these hybrid lattices showed a pronounced delay in strut-level failure and shear-band formation. Microtomography coupled with in-situ compression experiments confirmed that nodal cracking commonly observed in unfilled lattices is mitigated by the polymer phase. While hybrid lattices exhibited comparable or slightly increased stiffness only at large deformations, their enhanced integrity and stress redistribution suggest promise for crashworthiness and impact applications requiring high ductility or energy absorption. We discuss how the stiffness ratio between filler and metallic skeleton determines the extent of improvement, offering design guidelines for next-generation hybrid lattices. This is the first in-situ tomographic evidence that a compliant matrix can defer the critical shear-band in an additively manufactured metal auxetic lattice
Constructions mentales et constructions discursives
No full texthttps://www.innovation-pedagogique.fr/article23387.html#:~:text=Les%20constructions%20mentales%20sont%20des,caract%C3%A9ristiques%20des%20activit%C3%A9s%20des%20sujets.It is quite rare to focus on the respective roles of mental constructs and discursive constructs in the conduct of actions. This text, based on the characteristics that enable them to be identified, examines how they can be identified. Analysing their reciprocal iteration can help to account for the implicit and explicit aspects between representations and actions in professional practices.Il est assez rare de s’intéresser aux rôles respectifs des constructions mentales et des constructions discursives dans la conduite des actions. Ce texte, à partir des caractéristiques permettant de les repérer, s’interroge sur leur identification. Analyser leur itération réciproque peut permettre de rendre compte des aspects implicites et explicites entre représentations et actions dans les pratiques des professionnels
De la construction d’une légitimité symbolique à la structuration d’un secteur d’activité : le territoire professionnel du podcast natif
No full textInternational audienceThis contribution aims to show how the formalization of the professional world of the native podcast from the mid-2010’s onwards takes place at the crossroads of other professional spaces, first and foremost that of radio. The demonstration is is based on around fifty semi-structured interviews with podcast players, as well as on a study of their public discourse. First, we study the way in which the players attempt to construct the symbolic legitimacy of the podcast as a sector in its own right. We also show the heterogeneity of the trajectories of podcast ‘professionals’, challenging them to find a viable socio-economic model. Finally, we describe the way in which, despite this heterogeneity, the players make common claims, thus affirming their ambition to ‘make territory’.Esta contribución muestra cómo la estructuración del territorio profesional del podcast nativo a partir de mediados de la década de 2010 tiene lugar en la encrucijada de otros espacios profesionales, en primer lugar el de la radio. La demostración es triple y se basa en una cincuentena de entrevistas semiestructuradas a protagonistas de podcasts, así como en un estudio de su discurso público. En primer lugar, estudiamos el modo en que los actores intentan construir la legitimidad simbólica del podcast como sector de actividad de pleno derecho. Asimismo, mostramos la heterogeneidad de las trayectorias de los « profesionales » del podcast, desafiándoles a encontrar un modelo socioeconómico viable. Por último, describimos el modo en que, a pesar de esta heterogeneidad, los actores hacen reivindicaciones comunes, afirmando así su ambición de « hacer territorio ».Cette contribution vise à montrer comment la structuration du territoire professionnel du podcast natif à partir du milieu des années 2010 se fait au carrefour d’autres espaces professionnels, au premier rang desquels celui de la radio. La démonstration est triple et s’appuie sur une cinquantaine d’entretiens semi-directifs avec des acteurs du podcast, ainsi que sur l’étude de la discursive publique de ces derniers. On étudie d’abord la façon dont les acteurs tentent de construire la légitimité symbolique du podcast comme secteur à part entière. On montre également l’hétérogénéité des trajectoires des « professionnels » du podcast, les mettant au défi d’un modèle socio-économique viable. Enfin, on s’attache à décrire la façon dont, en dépit de cette hétérogénéité, les acteurs mettent en œuvre des revendications communes, affirmant ainsi leur ambition de « faire territoire »
Madagascar : ce que le drame d'Ambohimalaza révèle sur la gestion de l’information publique
No full textThe ConversationEn juin 2025, Madagascar a connu un drame sanitaire à Ambohimalaza ayant causé la mort de plusieurs jeunes. Rapidement qualifié d’empoisonnement volontaire par les autorités, l’événement a révélé des enjeux plus profonds liés à la gestion de l’information publique en contexte d’incertitude. L’article analyse les tensions entre communication institutionnelle, récits citoyens et logiques virales des réseaux sociaux, où se superposent faits, rumeurs et désinformation. Cette « crise narrative » met en évidence le rôle des récits dans la construction de la légitimité, ainsi que les limites d’une communication centralisée dans un espace numérique concurrentiel. L’étude propose le concept de « souveraineté communicationnelle partagée », invitant à dépasser le monopole de l’État sur la parole publique au profit d’une gouvernance plurielle intégrant voix institutionnelles, scientifiques, médiatiques et citoyennes
Valeurs seuils de la force de préhension comme marqueur de risque de diabète de type 2 chez l’adulte en France
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Enhancing physical activity assessment in a French large cohort: Feasibility and acceptability of using wearable accelerometers
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Inside Job: Defending Kubernetes Clusters Against Network Misconfigurations
No full textInternational audienceKubernetes has emerged as the de facto standard for container orchestration. Unfortunately, its increasing popularity has also made it an attractive target for malicious actors. Despite extensive research on securing Kubernetes, little attention has been paid to the impact of network configuration on the security of application deployments. This paper addresses this gap by conducting a comprehensive analysis of network misconfigurations in a Kubernetes cluster with specific reference to lateral movement. Accordingly, we carried out an extensive evaluation of 287 open-source applications belonging to six different organizations, ranging from IT companies and public entities to non-profits. As a result, we identified 634 misconfigurations, well beyond what could be found by solutions in the state of the art. We responsibly disclosed our findings to the concerned organizations and engaged in a discussion to assess their severity. As of now, misconfigurations affecting more than thirty applications have been fixed with the mitigations we proposed
