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Les enjeux de la territorialisation du savoir pour le travail en Maison Familiale et Rurale
No full textInternational audienceHistoriquement, les Maisons Familiales Rurales (MFR) apparaissent comme une réponse à l’inadéquation du système scolaire face aux besoins des jeunes issus du monde agricole. Créées dans les années 1930, elles visent à former localement les futurs agriculteurs en répondant à l’écart entre les formations disponibles et les compétences effectivement requises dans les territoires ruraux. Cette communication interroge les conditions de production du savoir dans les MFR en s'intéressant à l'activité de travail des formateurs. L’analyse ergonomique révèle que la « territorialisation du savoir » est le résultat d'un travail exigeant, souvent invisibilisé par une bureaucratisation croissante des tâches prescrites.L'étude met en évidence les stratégies déployées par les équipes pour connecter les apprentissages théoriques aux pratiques locales du territoire. Ces productions pédagogiques consistent à transformer le vécu technique des apprenants en ressources pour les disciplines scientifiques, ou à créer des dispositifs de médiation forçant la rencontre entre l'espace scolaire et les acteurs du territoire. Si ces initiatives donnent un sens fort à la formation, elles reposent majoritairement sur des régulations individuelles et une surcharge temporelle, générant des risques pour la santé des formateurs et une fragilisation des collectifs de travail.Dans une perspective de transformation, cette communication propose de dépasser le seul constat des risques en intégrant la dimension spatiale comme levier d'action. L'aménagement des lieux de formation est ici pensé comme la conception de supports durables facilitant les circulations et les coordinations nécessaires à l'alternance en plus d'une réponse fonctionnelle. L'enjeu est ainsi de passer d'une territorialisation dépendante de l'engagement des individus à une organisation structurellement capable de soutenir ce travail de lien, en articulant projet pédagogique, analyse du travail et conception architecturale
Violences de genre et dominations sociales dans Chavirer de Lola Lafon
No full textInternational audienceThis article was written as part of a workshop with the French author Lola Lafon. It aims to analyze the representations of gender-based violence and of social domination in the novel Chavirer (2020). The first part, devoted to literary analysis, examines the staging and language of sexual predation used by Galatée, a fictional pedocriminal foundation, of which the thirteen-year-old protagonist Cléo is a victim. The second part adopts a methodological point of view, to explore what intertextuality, discourse analysis, and the concepts of “rape culture” and intersectionality, theorized by gender studies, can bring to the study of novelistic representations of sexist and sexual violence. Published in the post-MeToo era and taking a retrospective look at the fetishization of teenage girls in the 1980s, this polyphonic novel echoes current feminist thinking, engaging in dialogue with one of the new sub-genres of contemporary literature: that of stolen childhoods.Cet article a été rédigé dans le cadre d’un atelier-rencontre avec l’autrice Lola Lafon, qui s’est déroulé le 12 mai 2023 à la Villa Gillet dans le cadre du Festival international de littérature à Lyon. Il se propose d’analyser les représentations des violences de genre et des mécanismes de dominations sociales dans le roman Chavirer (2020). Une première partie d’analyse littéraire étudie la mise en scène et le langage de la prédation déployés par la fondation pédocriminelle fictive Galatée, dont est victime la protagoniste Cléo, âgée de treize ans. Une seconde partie interroge, en termes méthodologiques, ce que les outils littéraires apportent à l’étude des représentations romanesques des violences sexistes et sexuelles. Le déploiement des intertextes, l’analyse du discours et les concepts de « culture du viol » et d’intersectionnalité, théorisés par les études de genre, sont mobilisés pour étudier ce roman de l’extrême-contemporain. Publié dans l’après-MeToo et portant un regard rétrospectif sur la fétichisation des adolescentes dans les années 1980, ce roman polyphonique se fait l’écho des réflexions féministes actuelles, en dialogue avec l’un des nouveaux sous-genres de la littérature contemporaine : celui des enfances volées
« Stutschewsky, Joachim (1891-1982) : présentation synthétique des écrits », in : Dictionnaire des Écrits de Compositeurs (Dictéco)
No full text« Stutschewsky, Joachim (1891-1982): Overview of Writings », in : Dictionnaire des Écrits de Compositeurs (Dictéco), 202
ALGORITHME PLUG-AND-PLAY AVANT-ARRIÈRE POUR RESTAURER LES IMAGES LANDSAT : UNE ÉTAPE PRÉLIMINAIRE POUR DÉCOUVRIR L'HISTOIRE DES EAUX DE SURFACE
No full textInternational audienceThe temporal and spatial analysis of river dynamics is a key factor for studying and understanding human impacts on floodplains.To assess the changes taking place, it is necessary to have high-resolution images with a large spatial coverage and a high temporal revisit frequency over the long term. Satellite imagery meets several of these criteria. For instance, Sentinel data provide high-resolution images but only after 2015. Therefore, to study water surface evolution prior to this date, it is necessary to rely on other satellite images such as Landsat, which offers longer historical coverage, albeit with lower spatial resolution. In this study, we aim to increase the spatial resolution of Landsat data from 30 to 10 meters (resolution of Sentinel images). To achieve this goal, we develop an innovative single image super-resolution method based on a plug-and-play approach.L'analyse temporelle et spatiale de la dynamique fluviale est un facteur clé pour étudier et comprendre les impacts humains sur les plaines inondables.Pour évaluer les changements qui se produisent, il est nécessaire de disposer d'images haute résolution avec une large couverture spatiale et une fréquence de revisite temporelle élevée sur le long terme. L'imagerie satellite répond à plusieurs de ces critères.Par exemple, les données Sentinel fournissent des images haute résolution, mais uniquement après 2015. Par conséquent, pour étudier l'évolution de la surface de l'eau avant cette date, il est nécessaire de s'appuyer sur d'autres images satellites telles que Landsat, qui offre une couverture historique plus longue, mais avec une résolution spatiale inférieure. Dans cette étude, nous visons à augmenter la résolution spatiale des données Landsat de 30 à 10 mètres (résolution des images Sentinel). Pour atteindre cet objectif, nous développons une méthode innovante de super-résolution d'une seule image basée sur une approche plug-and-play
Toward preventive interventions in developmental coordination disorder: in need of early behavioral markers?
No full textInternational audienceDevelopmental Coordination Disorder (DCD) affects around 5% of children in the general population and up to 31% of those in at-risk groups. Despite its prevalence and life-long impact, DCD remains largely underdiagnosed, with most interventions occurring post-diagnosis. This delay risks missing sensitive windows for neurodevelopmental support and postpones necessary adaptations in the learning environment. The objective of this narrative review is to examine how early behavioral indicators can be integrated into developmentally informed intervention pathways for DCD. Scope: This narrative review synthesizes current intervention strategies and neurodevelopmental behavioral markers in DCD to inform a model that integrates early behavioral indicators into targeted educational and health interventions. We propose a twostage approach, aligned with a Response to Intervention (RTI) framework, combining early transdiagnostic screening with later diagnostic confirmation. Early identification and Tier-2 intervention: In early infancy, available behavioral markers are typically sensitive but not specific, identifying motor-atypical development without distinguishing among disorders. This justifies a transdiagnostic Tier-2 entry: children receive monitoring and support based on early motor atypia or delay, not yet tied to a specific condition. Such interventions can yield developmental benefits even for children who ultimately do not meet DCD diagnostic criteria. Between 2 and 4 months, the Standardized Infant NeuroDevelopmental Assessment (SINDA; cut-off < 21) offers 94% sensitivity and 99% negative predictive value for predicting later motor delay or cerebral palsy. Broader awareness among clinicians, educators, and families is essential, with the sensitive LDCD-Q (Little Developmental Coordination Disorder Questionnaire) enabling broader community engagement in early screening. We advocate systematic follow-up of high-risk children, even in the absence of overt symptoms, and their inclusion in Tier-2 interventions to support optimal development and promote timely environment-based accessibility strategies. Later diagnosis and Tier-3 intervention: From age 4, the Movement Assessment Battery for Children-2 (MABC-2; cut-off <5th percentile) allows categorical diagnosis of DCD with 93% specificity and 79% positive predictive value, guiding Tier-3 interventions. Conclusion: Embedding early behavioral markers within an RTI framework enables preventive and universal motor-based programs (e.g., ENCOR) to be implemented earlier, while simultaneously supporting the deployment of educational compensation strategies. This approach shifts effective interventions upstream without prematurely medicalizing support.</div
Near real-time monitoring of volcanic deformation and lava flows from multi-angular Capella Space SAR imagery
No full textInternational audienceMonitoring deformation and surface changes is crucial for rapid hazard assessment during volcanic eruptions. This can be achieved by detecting changes in Synthetic Aperture Radar (SAR) images. However, most traditional methods require SAR images acquired with an identical observation geometry, limiting the temporal resolution to the repeat cycle of the satellite/constellation (typically a few days). Here, we present a novel method based on a single Capella Space high-resolution SAR amplitude image acquired with a viewing geometry 1 that is not necessarily known in advance. We compare this image to a highresolution Digital Elevation Model (DEM) acquired months or years before the eruption. The SAR image is correlated against a synthetic image generated from knowledge of the SAR sensor geometry and the DEM. We show that the correlation score allows to map surface changes, such as new lava flows. Moreover, the estimated shifts between the real and synthetic images provide two independent components of the ground displacement. We combine multiple images of arbitrarily different geometries to retrieve the three components of displacement. We apply the method to the Piton de la Fournaise volcano (La Réunion island), and validate our results with "ground truth" data including daily-resolved lava flow maps and Global Navigation Satellite System (GNSS) displacements. The method achieves a precision of ∼10-20 cm on all components. It also enables tracking the progress of lava flows on a daily basis. Our approach could be used operationally to monitor other volcanoes, particularly those that are dangerous or with limited ground-based instrumentation.</div
Deepest voting on rankings
No full textThis article aims to present a unified framework for ranking-based voting rules based on the use of depth functions on permutations, as a counterpart of deepest voting rules on evaluation introduced in Aubin et al. [2022]. It introduces the notion of depth functions, in continuous sets and in permutation sets, the later using the notion of Fréchet means. Deepest voting procedures are then formally defined, and some classical voting rules are expressed as deepest voting procedures, using a large variety of distances on the set of permutations. Links are done between the depth functions mathematical properties and some behaviours of the voting rule, such as Neutrality, Anonymity, Universality, Condorcet winner/loser property and so on
Impact of systematic ultrasonography on lateral ankle sprain management
No full textInternational audienceBackground: Lateral ankle sprain (LAS) is the most common traumatic injury, yet its diagnosis and management remain suboptimal. This contributes to a high prevalence of residual symptoms, negatively impacting patient quality of life and increasing healthcare costs. We hypothesized that routine ultrasonography (US) following LAS could significantly modify the treatment strategy established by a specialist. Additionally, we hypothesized that US is an efficient tool for identifying osseous injuries and associated ligamentous injuries.Methods: Fifty-one ankles with lateral instability diagnosed in the emergency department (ED) were retrospectively included. A second evaluation by an orthopedic surgeon was conducted within the first ten days to establish the "initial treatment". All patients underwent US and MRI within the first three weeks after the initial ED assessment and were reevaluated to establish the "post-US treatment". We determined concordance between initial and post-US treatment. Additionally, we assessed the diagnostic accuracy of US for identifying osseous and associated ligament injuries, including the anteroinferior talofibular ligament (AITFL), deltoid ligament, spring ligament, calcaneocuboid ligament (CCL), dorsal talonavicular ligament (DTNL), and bifurcate ligament, MRI serving as the reference standard for assessing ligamentous and osseous injuries.Results: Treatment for LAS was modified for 16 ankles (31.3 %) following US examination (W=97, p < 0.05). US demonstrated excellent sensitivity (0.73) and specificity (0.95) for identifying osseous injuries. Additionally, US detected injuries to the AITFL in 6 ankles (11.8 %), deltoid ligament in 16 (31.3 %), spring ligament in 1 (2 %), CCL in 1 (2 %), DTNL in 1 (2 %), and bifurcate ligament in 2 (3.9 %).Conclusion: US examination following LAS was significantly associated with treatment modifications. It also proved high accuracy for detecting osseous injuries missed by plain X-rays and diagnosing associated ligament injuries. Given these findings, it appears relevant to update the current diagnostic algorithm for LAS, including US