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Fathers have embraced longer and more flexible paternity leave
No full textInternational audienceReformed in 2021, paternity leave in France was extended and made more flexible. The proportion of fathers taking this leave continues to grow, particularly among those that used to claim it least, such as self-employed workers, those on fixed-term contracts, and the least-educated fathers. Fathers’ presence at the birth of their child and beyond is becoming the norm. However, occupational and financial pressures remain an obstacle to the use of paternity leave. Only a minority of fathers take a “solo” paternity leave after the mother’s return to work, but these numbers are increasing.La réforme du congé de paternité en 2021 a allongé sa durée et assoupli ses modalités. La part de pères prenant ce congé continue à augmenter, notamment chez ceux qui y avaient le moins recours comme les indépendants, les salariés en contrat à durée déterminée, les pères moins diplômés. La présence des pères au moment de la naissance se généralise et dure plus longtemps. Cependant, les contraintes professionnelles et financières restent un frein à la prise du congé. Même s’ils restent minoritaires, les pères qui prennent le congé « en solo », alors que la mère a repris le travail, sont de plus en plus nombreux
Cadenas operativas en cerámica, una metodología pertinente para definir unidades sociales y rastrearlas en el espacio y el tiempo: el caso de la llanura aluvial del Lerma y el Cerro Barajas (Guanajuato) durante el Epiclásico
No full textInternational audienceLa presente contribución tiene un doble objetivo el primero, de carácter metodológico, pretende posicionar al análisis por cadenas operativas como una herramienta adecuada para el estudio de las movilidades humanas, mientras que el segundo busca contribuir al conocimiento de las dinámicas de población y caracterización de las sociedades en el centro-norte de Michoacán durante los periodos preclásico final (100 a.C-200 d.C.) y clásico (200-600 d.C), a partir de un estudio comparativo entre la llanura aluvial del valle del Lerma (ubicada entre los municipios de Pastor Ortiz, Michoacán y Pénjamo, Guanajuato) y la Cuenca de Zacapu (Michoacán), a través sus producciones cerámicas. Proponemos que los asentamientos del valle (que datan de alrededor del 200 d.C) forman parte de la expansión paulatina de los grupos que habitaban la Cuenca de Zacapu (a 50km al sur del valle), desarrollo conocido como “Loma Alta”, asentados en esta región desde el 100 a.C. El tipo de vínculo entre ambas sociedades será entendido en términos de tradiciones técnicas compartidas, es decir mismas formas de hacer expresadas a través de cadenas operativas particulares de producción de los objetos cerámicos
Modèles féminins et masculins : “On a besoin d’un idéal”, Grease
No full textVoyages autour de mon cerveau« Modèles féminins et masculins : “On a besoin d’un idéal”, Grease », Voyages autour de mon cerveau, janvier 2026. URL : https://vadmc.hypotheses.org/2792
Au moins aussi inquiétant que la perspective d’un conflit ouvert avec les Etats-Unis, la soumission tranquille du Canada et de certains Européens à la Chine
No full textInternational audienceLa reconfiguration du monde sur le plan stratégique, l'avenir de la France face à la Chine et les Etats-Uni
Crossing borders: Mobile populations in southernmost Egypt at the turn of the third millennium BC
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Crisis, breakdown and reorganization: The end of the Old Kingdom and the First Intermediate Period (2200-2050 BC)
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De la France vers l’Algérie : retours et contributions des femmes journalistes algériennes à travers la trajectoire de Keltoum Staali (années 1980)
No full textInternational audienceKeltoum Staali was one of the top name of the Algerian weekly Révolution Africaine during the 1980s. Writing in the society section, she covered topics such as youth, education, labor mobilization and broader social issues. Hired in the mid-1980s by the newspaper owned by the Front de libération nationale (FLN) party, she spent three years working within a dynamic editorial team. Born in France in 1960, to a working-class immigrant family, Keltoum Staali returned to Algeria after completing her university studies. In Algiers, she embarked on a career in journalism. Focusing on Staali’s personal and professional trajectory, this paper aims to contribute to the under-documented history of the media in post-independance Algeria, particularly the role of women journalists in the context of socialist Algeria. It draws on interviews conducted with Keltoum Staali since 2021, as well as her personal archives, published writings, and Algerian press archives from the 1980s. Through her life and professionnal experience, this study offers a portrait of a little-known generation of Algerian journalists raised in France who played a significant role in shaping the Algerian press
Redesign adaptatif des paysages urbains industriels. Le cas d'étude de la place de TEE à Komotini, Grèce
No full textInternational audienceDeindustrialization has left many industrial buildings inactive, raising questions about their role in contemporary urban life. This article explores how semiotics and psychogeography can reframe such structures as dynamic architectural happenings, shifting emphasis from preservation toward social value and collective experience. This research focuses on Komotini, Greece, where the Technical Chamber Square is reinterpreted through references to the adjacent Tobacco Warehouse. By integrating architectural traces of the past into new recreational and sporting functions, this study demonstrates how heritage can be embedded into everyday practices. Methodologically, this research employs qualitative approaches, including demographic and historical analysis of Komotini's urban and industrial development, alongside psychogeographic drifting walks. Twenty interviews were conducted with local business owners, residents, and visitors, as well as psychogeographic walks, generating insights into how communities interact with industrial heritage. The findings indicate that semiotics and psychogeography are effective tools for activating public spaces near former industrial sites, enabling the built environment to be understood as a layered record of successive interventions. The study concludes that adaptive redesign offers designers a methodology that can embed industrial fragments into vibrant public realms that sustain diverse communities, catalyze local economies, and honor historical identity through lived practices
Numerical Analysis of Test Optimality
No full textIn nonstandard testing environments, researchers often derive ad hoc tests with correct (asymptotic) size, but their optimality properties are typically unknown a priori and difficult to assess. This paper develops a numerical framework for determining whether an ad hoc test is effectively optimal-approximately maximizing a weighted average power criterion for some weights over the alternative and attaining a power envelope generated by a single weighted average power-maximizing test. Our approach uses nested optimization algorithms to approximate the weight function that makes an ad hoc test's weighted average power as close as possible to that of a true weighted average power-maximizing test, and we show the surprising result that the rejection probabilities corresponding to the latter form an approximate power envelope for the former. We provide convergence guarantees, discuss practical implementation and apply the method to the weak-instrument-robust conditional likelihood ratio test and a recently-proposed test for when a nuisance parameter may be on or near its boundary
Optimizing the Viability of Interacting Systems with Evolutionary Algorithms
No full textInternational audienceViability theory studies the behavior of dynamical systems, with the aim of keeping them viable, or in other terms, keep their trajectories within desired constraints in the state space. Finding strategies to keep a dynamical system viable is already a challenge for optimization algorithms, but this task becomes even harder for multi-agent systems, where agents’ individual decision can influence the dynamics of the whole system. In this paper, we consider a multi-agent dynamic system and introduce an evolutionary approach for optimizing agents’ interaction behaviour, delimited by some a priori agreements, in the form of a set of commitments, with the objective of keeping the system viable. This approach is tested on the case-study of a collective project grouping several agritouristic activities on a shared place. Experimental results show that it is possible to find a set of agents’ commitments that can maintain system viability, supporting the proposed framework’s effectiveness