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SegmentArt, une méthode plus rapide pour annoter des images en utilisant SegmentAnything2
No full textPrésentation de l'intervention du colloque Humanistica 2025 (Dakar) proposé par le HN Lab sur les questions de l'annotation d'images (SegmentArt) par l'utilisation SegmentAnything
Atelier Pratiques d'annotation d'images culturelles et patrimoniales en 2D
No full textPrésentation de l'atelier du groupe de travail PictorIA - Annotations, formats et structuration des données visuellesPrésentation de l'atelier du groupe de travail PictorIA - Annotations, formats et structuration des données visuelle
Exposition à l'écrit et développement de la lecture dans le système éducatif français : Une revue systématique.
No full textInternational audienc
Spinfoam tunneling of quantum geometries in angle variables
No full textInternational audienceTunneling processes offer a promising path for finding signatures of quantum gravity. While tunneling of geometry has long been recognized in the literature, few detailed analyses have been carried out. We investigate covariant Loop Quantum Gravity transitions in the holonomy representation, which naturally encodes the extrinsic curvature of boundary states. We study these amplitudes within the simple framework of the Ponzano-Regge spinfoam model for three-dimensional Euclidean quantum gravity. Having identified the geometries that dominate the spinfoam path integral in the classically forbidden regime when it is formulated in terms of dihedral angles as boundary data, we argue that they correspond to tunneling processes. Finally, we characterize these non-classical geometries and show that their contributions to the spinfoam amplitude are exponentially suppressed in the semiclassical limit via analytic continuation of the discrete gravity action. This work sheds light on quantum black-to-white-hole transitions, in particular clarifying the origin of the exponential suppression of various quantum amplitudes
Nephrogenomics, precision medicine and the role of genetic testing in adult kidney disease management
No full textInternational audienceGenetic investigations in nephrology have long been viewed as the prerogative of paediatricians or restricted to archetypal genetic nephropathies with highly penetrant variants affecting young adults.However, genetic testing has emerged as a pivotal tool in the field of adult nephrology, with the ability to revolutionize the understanding and management of adult kidney diseases. Here, we explore the multifaceted role of genomic testing (such as exome or genome sequencing) in chronic kidney disease, shedding light on current genetic findings for reframing diagnostic paradigms and tailoring treatment strategies. Genomic testing has enhanced our comprehension of kidney diseases of unknown origin by showing that ~20% are attributable to kidney Mendelian genetic disorders with yet unsuspected phenocopies. Beyond genetic counseling, genetic integration can optimize therapeutic interventions, kidney transplantation and kidney disease prevention, both in index cases and at-risk family members.Furthermore, the emerging field of rapid nephrogenomics promises streamlined diagnosis and management, with potential impact on early therapeutic strategy. Importantly, although costs continue to decrease, the integration of genomic technologies in nephrology practice raises several ethical concerns, especially regarding variants of uncertain significance, and incidental or secondary findings. Establishing multidisciplinary frameworks should maximize the potential of nephrogenomics to improve patient outcomes.</p
Low genetic diversity and high phenotypic plasticity for growth traits and growth-climate relationships in Pinus nigra Arnold, the European black pine
No full textRadial growth is a fitness-related adaptive trait in forest trees that is expected to vary among populations under variable habitat conditions. Common gardens are widely used for the investigation of genetic variability, genotype by environment interactions and phenotypic plasticity of fitness related traits and provide information on adaptation useful for breeding and plantation forestry. Pinus nigra J.F. Arnold (1785), the European black pine, is a forest tree species widely but patchily distributed throughout southern Europe, from isolated locations in north Africa to the Black Sea and Western Asia. While it has been widely used as plantation species since the mid-19 th century because of its strong growth on rather poor soils, the diversity of the growth traits of its different genetic lineages and geographic origins has rarely been compared in similar environments before. In this study, we analyzed the radial growth performance of sixteen different geographic origins (provenances) of P. nigra growing in four bioclimatically contrasted common gardens in France.Using a tree-ring to climate relationship approach and a 40-year long chronology, we first estimated how variable the effect of monthly climate was on radial growth, depending on phylogenetic or geographic origin, and plantation habitat. We then used the tree ring data to estimate genetic and plasticity effects on growth and to test for the existence of genotype by environment interactions. Lastly, we ranked the growth performance of the different subspecies and provenances measured in each common garden, having in mind a typology for forest management.Results showed few climate effect differences among provenances and subspecies, with late spring minimum temperatures affecting growth negatively and early summer precipitations positively, overall. Winter maximum temperatures affected growth differently depending on the site, with a negative correlation at the warmest sites and a positive correlation at the coldest one. The provenance effect was stronger than the subspecies effect for radial growth and phenotypic plasticity was very high across the four sites (doubling of growth from low to high fertility sites). Results also showed a relative stability of provenance ranking among the four study sites. While some provenances of P.n. subsp. pallasiana, P.n. subsp. laricio and P.n. subsp. nigra performed well in all sites, others from the same subspecies displayed significant genotype by environment interactions. Provenances of the subspecies P.n. subsp. salzmannii displayed higher early growth up to 15 years of age compared to the other provenances, across all sites, but became poorly ranked afterwards except in the least fertile test site.Provenance variability within subspecies and not just subspecies variability should be considered in plantation forestry, both for restoration and timber production
Quand une promesse sous condition suspensive de levée d'option d'une autre promesse n'est pas nulle pour potestativité de sa condition
No full textInternational audience(Com. 28 mai 2025, no 24-13.902
La réponse tardive à l'invocation des violences morales intrafamiliales constitue un traitement inhumain et dégradant
No full textInternational audience(CEDH 13 févr. 2025, no 64066/19, P.P. c/ Italie ; Civ. 1re, 5 févr. 2025, no 23-13.181, D. 2025. 751, obs. J.-J. Lemouland et D. Vigneau ; AJ fam. 2025. 231, obs. B. Mallevaey ; Dr. fam. 2025. Comm. 59, obs. L. Mauger-Vielpeau ; JCP 20250 Doct. 385, no 14, obs. Y. Favier
X-ray and UV photochemical rates of CO ices
No full textInternational audienceContext. Compared to UV radiation, X-rays contribute only minimally to the interstellar radiation field, but galactic and stellar objects can produce significant local X-ray fluxes that can impact the chemical composition of nearby gases and icy dust. Aims. The aim of this study is to provide astrochemists with laboratory data on the X-ray and UV photochemical rates of CO ice, one of the most abundant ices in the universe. Methods. We used two laboratory sources emitting X-rays (Al Kα, 1486.6 eV) and UV (Lyman-α, 10.2 eV) to measure and compare X-ray and UV photochemical rates of CO ices. We used infrared spectroscopy to probe photodesorption and photodissociation, the two processes being differentiated by covering the CO ice with an argon layer to block photodesorption. Results. For CO ice at 10 K, we find UV photodesorption rates in line with the existing literature. At 1486.6 eV, X-ray photodesorption rates are an order of magnitude higher than with UV. We show that the X-ray absorption cross section of CO allows astrochemists to scale these X-ray photodesorption rates to the X-ray spectrum of the region of interest. Regarding the CO photodissociation, our measured X-ray rates are two orders of magnitude higher than with UV, and are also proportional to the X-ray absorption cross section. The reformation reaction balances the X-ray destruction of CO, leading to a stable state where only 25% of the initial amount of CO is destroyed, strongly limiting the destruction of CO by X-rays. When this steady state is reached, only X-ray and UV photodesorption need be considered. Conclusions. This study provides the data needed to model X-ray and UV photochemical processes in CO ices.</div
Faire cinéma, faire collectif
No full textInternational audienceLe dossier thématique de ce nouveau numéro, coordonné par Marie Pierre-Bouthier et Salima Tenfiche, n’est pas tout à fait ordinaire. Son objet, le cinéma, a nécessité un pas de côté – ou plutôt une certaine souplesse vis-à-vis de la ligne éditoriale de la revue, ancrée dans les sciences sociales – pour accueillir une diversité de contributions, dont certaines s’inscrivent davantage dans des approches esthétiques. L’ouverture revendiquée de ce numéro dépasse les seuls choix disciplinaires ou méthodologiques : elle se traduit aussi par la variété des formats et dans la pluralité des parcours des auteurs et autrices. Aux articles de recherche s’ajoutent, en effet, deux entretiens avec des réalisateurs, ainsi qu’un texte rédigé par une curatrice.<br/