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Nullité du licenciement d'un agent mis à disposition d'un employeur privé : l'indemnité est due par l'employeur privé… même s'il ne verse pas la rémunération
No full textInternational audienceNote sous Soc., 25 juin 2025, no 23-17.266 (publié au Bulletin
« A chascun montre sa follie». Hélisenne de Crenne et les Angoisses douloureuses qui procèdent d'amour.
No full textInternational audiencePour la deuxième année consécutive, le jury des Agrégations de Lettres a choisi de mettre à l’honneur une œuvre de la Renaissance réputée composée par une femme. Après les Oeuvres de Louise Labé, ce sont donc Les Angoisses douloureuses qui procèdent d’amour, un roman signé “Hélisenne de Crenne” et publié pour la première fois en 1538 par Denis Janot à Paris, qui sont offerts à l’attention des candidates et candidats. Nous revenons ici sur les principaux enjeux de l’étude de cette œuvre sur lesquels nous essayons de faire un point précis : l’hybridité du texte, la mise en récit d’une intériorité souffrante, les problématiques de genre mais aussi les différentes images de l’amour qui y sont déployées
Démonstrations des théorèmes folkloriques sur la dérivée de Radon-Nikodym
No full textIn this technical report, rigorous statements and formal proofs are presented for both foundational and advanced folklore theorems on the Radon-Nikodym derivative. The cases of conditional and marginal probability measures are carefully considered, which leads to an identity involving the sum of mutual and lautum information suggesting a new interpretation for such a sum.Dans ce rapport technique, des énoncés rigoureux et des preuves formelles sont présentés pour des théorèmes folkloriques, tant fondamentaux qu’avancés, portant sur la dérivée de Radon-Nikodym. Les cas des mesures de probabilité conditionnelles et marginales sont examinés avec soin, ce qui conduit à une identité impliquant la somme de l’information mutuelle et de l’information lautum, suggérant une nouvelle interprétation de celle-ci
Back to the Future: Where Do We Stand on the Piscivorous Habits of Conus striatus Nearly 70 Years Later?
No full textInternational audienceNearly 70 years ago, the fish-hunting strategy of the marine gastropod snail Conus striatus Linnaeus, 1758, was unveiled for the first time. Now, Conus striatus is one of the most recognizable and most studied conids, and some toxins (conotoxins) have been characterized from its venom. In his pioneering work, Alan Kohn showed that upon injection of venom through a harpoon-like modified radular tooth, the fish prey of Conus striatus is rapidly immobilized, within a few hundred milliseconds to a couple of seconds. The cocktail of conotoxins induces strong tetanic contractions of all muscles, with visible fasciculation (twitching) of the fish's fins. In this review, we wish to honor the memory of Alan Kohn by summarizing the current knowledge of the venom composition and biological activity of conotoxins of Conus striatus. From the 103 entries of conotoxins from Conus striatus that occur in the Conoserver database, 74 are mature conotoxin sequences and only a dozen or so have been pharmacologically characterized. Surprisingly, the major toxin class responsible for the “taser-like” effect in fish originally observed, the kA-conotoxins, remains poorly understood. Only one three-dimensional structure is known, and the molecular target and mode of action are at best uncertain. This clearly highlights that, despite the vast amount of data accumulated over the years, even for such heavily investigated species as Conus striatus, many important questions remain
Abelian surfaces over finite fields containing no curves of genus or less
No full textminor modifications to the exposition. comments are welcomeWe study abelian surfaces defined over finite fields which do not contain any possibly singular curve of genus less than or equal to . Firstly, we complete and expand the characterisation of isogeny classes of abelian surfaces with no curves of genus up to initiated by the first author \emph{et al.~}in previous work. Secondly, we show that, for simple abelian surfaces, containing a curve of genus is equivalent to admitting a polarisation of degree . Thanks to this result, we can use existing algorithms to check which isomorphism classes in the isogeny classes containing no genus curves have a polarisation of degree . Thirdly, we characterise isogeny classes of abelian surfaces with no curves of genus , containing no abelian surface with a polarisation of degree . Finally, we describe the absolutely irreducible genus curves lying on abelian surfaces containing no curves of genus less than or equal to , and show that their number of rational points is far from the Serre--Weil bound
Tenacibaculum platacis sp. nov., Tenacibaculum vairaonense sp. nov. and Tenacibaculum polynesiense sp. nov. isolated from batfish (Platax orbicularis) in Tahiti Island, French Polynesia
No full text[Éthique] Échantillonnages sur animauxInternational audienceTen novel Gram-negative, aerobic, non-sporulating, yellow-pigmented rod-shaped bacterial strains motile by gliding were isolated from marine organisms/environments in French Polynesia. Three of them designated as 190524A05c T , 190524A02b T and 190130A14a T were retrieved from orbicular batfish ( Platax orbicularis ) mucus. Online database comparisons using 16S rRNA amplicons resulted in over 95% similarity to the genus Tenacibaculum . Phylogenetic analyses based on 679 concatenated core protein sequences revealed that strains 190524A05c T , 190524A02b T and 190130A14a T showed the highest similarity to Tenacibaculum skagerrakense DSM 14836 T , Tenacibaculum xiamenense LMG 27422 T and Tenacibaculum holothuriorum S2-2 T , respectively. Digital DNA–DNA hybridization and average nt identity values between strains 190524A05c T , 190524A02b T and 190130A14a T and other type strains were less than 76.25 and 24.1%, respectively. The DNA G+C content was 31.48, 30.66 and 31.98 mol% for strains 190524A05c T , 190524A02b T and 190130A14a T , respectively. Menaquinone-6 was detected as the major isoprenoid quinone in these three strains. The major polar lipids (phosphatidylethanolamine and aminophospholipid) were similar to the chemotaxonomic profile of other species of the genus Tenacibaculum . Strain 190524A05c T contained summed feature 3 (comprising C 16:1 ω7c and/or iso-C 15:0 2-OH), iso-C 15:1 G, iso-C 15:0 and iso-C 17:0 3-OH as the major cellular fatty acids. Strain 190524A02b T contained summed feature 3 (comprising C 16:1 ω7c and/or iso-C 15:0 2-OH), iso-C 15:0 , iso-C 15:1 G and iso-C 17:0 3-OH as the major cellular fatty acids. Strain 190130A14a T contained iso-C 15:1 G, summed feature 3 (comprising C 16:1 ω7c and/or iso-C 15:0 2-OH), iso-C 15:0 and iso-C 17:0 3-OH as the major cellular fatty acids. Based on the phenotypic and molecular features, these three strains represent novel species of the genus Tenacibaculum for which the names Tenacibaculum platacis sp. nov., with 190524A05c T (= CIP 112470 T = DSM 118113 T ) as the type strain; Tenacibaculum vairaonense sp. nov., with 190524A02b T (= CIP 112469 T = DSM 118112 T ) as the type strain; and Tenacibaculum polynesiense sp. nov., with 190130A14a T (= CIP 112468 T = DSM 118111 T ) as the type strain, are proposed
Contesti educativi, contestualità della conoscenza e contestualizzazione didattica: un quadro teorico per ripensare l'educazione nei contesti postcoloniali
No full textInternational audienceLa nozione di contesto postcoloniale si riferisce a comunità e territori che hanno subito l'esperienza traumatica della colonizzazione e che, ancora oggi, sono caratterizzati da profonde fratture sociali con ripercussioni sull'ecosistema educativo. La ricerca in scienze sociali e pedagogia ha sviluppato diversi approcci teorici e un apparato concettuale ad hoc per descrivere le dinamiche inerenti a tali contesti e le problematiche associate alla postcolonialità in ambito educativo. Tre concetti chiave relativi a questo tema sono apparsi all'alba del nuovo millennio e, da allora, sono stati discussi dalla comunità di ricerca: il contesto educativo, la contestualità della conoscenza e la contestualizzazione didattica. Questo contributo si propone di presentarli in modo sistematico, di descriverne l'impatto sulle pratiche educative innovative e di discuterne la portata, soprattutto nel campo dell'epistemologia e della metodologia della ricerca scientifica
Spécificités des petites économies insulaires et marchés du travail - Regards croisés entre la Polynésie française et La Réunion
No full textInternational audienceCet article constitue le "Grand entretien" du numéro de la RIMHE consacré aux "Stratégies et défis de la GRH dans les environnements singuliers". Philippe Jean-Pierre, Professeur de sciences économiques à l’Université de La Réunion, et Florent Venayre, Professeur de sciences économiques à l’Université de la Polynésie française, y abordent les caractéristiques et les difficultés propres aux marchés du travail ultramarins
Chapitre 6 : Les îles : biodiversité et histoires humaines entremêlées
No full textInternational audienc