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Asile - Conséquences du refus de changement de centre d’hébergement ; CJUE, 18 déc. 2025, aff. C-184/24, Sidi Bouzid
No full textInternational audienceLe refus catégorique et réitéré d’un demandeur d’asile d’être transféré dans un autre centre d’hébergement n’est pas un abandon du lieu de résidence fixé par l’autorité compétente justifiant le retrait des conditions d’accueil Ce refus peut néanmoins être sanctionné au terme d’une appréciation individualisée prenant en compte la vulnérabilité des personnes concernée
Décision d’enquête européenne et audition en vidéoconférence , CJUE, 18 déc. 2025, aff. C-325/24, Bissilli
No full textInternational audienceUne mesure destinée à recueillir des éléments de preuves et ayant pour effet incident de garantir également la comparution de la personne à une partie de son procès relève du champ d’application de la décision d’enquête européenne Le motif d’inexistence ou d’indisponibilité de la mesure ne peut être opposer à une demande d’audition en visioconférenc
Tara Polaris expeditions: Sustained decadal observations of the coupled Arctic system in rapid transition
No full textThe coupled Arctic system is in rapid transition and is set to undergo further dramatic changes over the coming decades. These changes will lead most likely to an ice-free ocean in summer, expected before mid-century. The Arctic will become more strongly influenced by atmospheric and oceanographic processes characteristic of mid-latitudes, increasing the prevalence of contaminants and new biological species. This ongoing transition of the Arctic to a new state necessitates systematic monitoring of all sentinels (variables that make an essential contribution to characterizing the Earth's state) to improve our understanding of the system, enhance forecasting and support knowledge-based decisions. Here, we describe a sustained multi-decadal observation program to be implemented on the Tara Polar Station between 2026 and 2046. The monitoring program is designed as a series of year-long drift expeditions, called Tara Polaris, in the central Arctic Ocean, covering all seasons. The multidisciplinary data will bridge ecological, geochemical, biological, and physical parameters and processes in the atmosphere, sea ice and ocean. In addition, data collected with consistent methodologies over a 20-year period will make it possible to distinguish long-term trends from seasonal and interannual variability. In this paper, we discuss specific measurement challenges in each compartment (i.e., atmosphere, sea ice and ocean) along key sentinels and the most pressing scientific questions to be addressed. The expected outcomes of the Tara Polaris program will enable us to understand and quantify the main feedbacks of the coupled Arctic system, with their seasonal and interannual trends and spatial variability.</div
Recent Developments in the Catalytic Enantioselective Sakurai Reaction
No full textInternational audienceThe Sakurai reaction constitutes a valuable tool for carbon-carbon bond formation. The use of nontoxic allylic reagents as well as the atom economy of the global process has prompted the development of enantioselective (aza)-variants based on the use of chiral organo-and metal catalysts. This review collects the recent developments in catalytic enantioselective Sakurai reactions published since the beginning of 2011, including methodologies based on the use of chiral organocatalysts, metal/boron catalysts and multicatalyst systems. It is divided into three parts, dealing successively with enantioselective organocatalytic (aza-)Sakurai reactions, enantioselective metal/boron-catalyzed Sakurai reactions, and enantioselective multicatalyzed (aza-)Sakurai reactions. It shows that, although still widely developed with aromatic aldehydes, the enantioselective catalytic Sakurai reaction has considerably matured in the last decade.</div
Assessing the severe urban pollution crisis in Sarajevo, Bosnia and Herzegovina: mobile measurements and source characterization
No full textInternational audienc
Going up to France: (in)mobility, work and violence in Provençal agriculture in times of pandemic
No full textLa revue n'est plus éditée par WileyInternational audienceThe Covid 19 pandemic caused major changes in the global economy, paralysing a large part of production and revealing the importance of those sectors necessary for the reproduction of life, whose essential workers had to maintain their activity despite the danger of contagion. This article focuses on the case of Latin American day labourers in Provençal agriculture. We aim to capture the way in which part of the migrant labour force residing in Spain was expelled to the agro-industrial production enclave of the neighbouring country. To do so, we propose an analysis of labour and mobility trajectories between Spain and France. In addition to an approach to the strategies of social reproduction and the subjectivities of the social actors, this will allow us to identify dynamics of a more global and collective nature (Dombois, 1998), related to the agricultural labour market. We note that, while joining the French agricultural sector has given them access to employment and higher wages, it has also confronted them with the harsh conditions and high work rate involved in intensive agriculture. This has also weakened their positions due to a lack of knowledge of the language and the constraints of living in a highly segregated rural environment. The article seeks to explore the invisible side of essential work and to point out how these trajectories have been affected by both the material and symbolic violence that sustains the contemporary agri-food production model
High alpine preglacial caves modified by glacial processes and late condensationcorrosion in the Scerscen Valley (Valmalenco, Western Alps, Italy)
No full textInternational audienceThe Scerscen Valley (western Italian Alps) is home to caves at an altitude of around 2600 m, opening close to the Speleogenesis edge of a glacier. The aim of the research as part of a multi-disciplinary project was to reconstruct the evolution Alpine Cosmogenic GeomorphologyHydrogeologyglaciersburial dating of cosmonucleide some the of caves the related most burial recent to dating, the processes, geological recorded such and morphology paleoenvironmental as condensation-corrosion and micrometeorology, evolution and of sediment the carried area deposition. and out mineralogical to evaluate We the performed identifirole of cation by XRD, and hydrogeology using dye tracing and physical and chemical analyses. The cosmonucleide dating of quartz pebbles showed that the Veronica Cave is the oldest, with deposits dated at 1.3 ± 0.4 Ma, and possibly even older. It certainly formed at a much lower altitude (approx. 1300 m a.s.l. or lower) during the Alpine uplift. The Morgana and Marsooi caves, given the smaller volume of their phreatic conduits (1/3 of Veronica), are possibly more recent, formed during interglacials and evolved close to a glacial body. The caves initiated in dolomitic marble under the influence of sulfuric acid speleogenesis (SAS) due to pyrite oxidation. The conduits were then enlarged dramatically under phreatic conditions. The caves have evolved since their preglacial formation, with phases of filling by fluvio-glacial sediments and unclogging. Water tracing and physico-chemical analysis attest to a well-karstified aquifer, with rapid water circulation (>20 m/h) and low temperatures (~2 °C), draining towards the main spring, "La Prediletta", located at the foot of the dolomitic marbles. Microclimatic records (cave temperature and humidity) show seasonal cycles of condensation and evaporation, influenced by air exchanges with the outside atmosphere. These processes contributed to the formation of secondary minerals by evaporation (gypsum, hydromagnesite…) and, above all, to the significant enlargement of passages by the retreat of walls with characteristic morphologies (facets and grooved walls). The Scerscen caves bear witness to a long geological and climatic history, from their formation before the Mid-Pleistocene ice ages to their present-day evolution. They offer valuable insights into karst processes in the high mountains, and interactions between glaciers and aquifers
De la protection à la destruction : la violence des mères dans les romans policiers contemporains
No full textInternational audienc
On the contribution from the light quarks to
No full textInternational audienceThis Letter addresses the contribution from the light quarks to the amplitudes for the decay modes of the Brout-Englert-Higgs scalar boson into two photons () or to a photon and a neutral weak gauge boson (), taking into account the non-perturbative aspects of QCD. Contrary to a recent claim, the contribution from the light quarks does not vanish. Rather, it is shown that, in contrast to the perturbative evaluations usually considered in the literature, this contribution to the amplitudes starts with a term that is linear, and not quadratic, in the masses of the light quarks, thus pointing toward a sizeable enhancement of their contribution to