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Analyse par télédétection de l'impact du feu sur la dynamique d'une forêt sèche: Cas du Parc National Mikea -Sud-Ouest de Madagascar
No full textInternational audienceThis study uses remote sensing to assess the impact of fire on vegetation in Mikea National Park, an ecologically important dry forest in southwest Madagascar. Based on the analysis of the Normalized Difference Vegetation Index (NDVI), combined with the Normalized Burn Ratio (NBR) and Burn Area Index for Sentinel-2 (BAIS2) fire indices derived from Sentinel-2 images, this research examines the evolution of vegetation following fires during the dry season of 2023. The results shed light on the environmental changes induced by these fires.</div
Un Système d'Information Géographique harmonisé pour le suivi de l'adduction d'eau potable: Étude de cas de la région Haute Matsiatra à Madagascar
No full textInternational audienceThe distribution of drinking water is ensured by a number of managers in the high plateau of Madagascar mainly in the Haute Matsiatra region. Facilitating and better managing is the objective we have set. To do this, we offer a single and harmonised view of the different water supply networks to enable a better water distribution monitoring.La distribution de l'eau potable est assurée par un certain nombre de gestionnaires sur les hauts plateaux de Madagascar, principalement dans la région Haute Matsiatra. Faciliter et mieux gérer est l'objectif que nous nous sommes fixés. Pour ce faire, nous offrons une vision unique et harmonisée des différents réseaux d'adduction d'eau afin de permettre un meilleur suivi de la distribution de l'eau
Les assemblées d’habitants dans les petites villes d’Auvergne (XIVe-XVIe siècles)
No full textInternational audienc
Spatialisation et patrimoine au Maghreb : Paysages de centuriation dans la région de Sousse en Tunisie
No full textInternational audienceDans le cadre du projet AMIDEX Spatialisation et patrimoine archéologique au Maghreb (STAP), les recherches menées ont porté sur l’étude de l’évolution des paysages de centuriations dans la région de Sousse en Tunisie et de leurs impacts sur la structuration des territoires actuels. Ces recherches résolument interdisciplinaires dans l’analyse des centuriations rassemblent géographie humaine et physique, archéologie, histoire, géomatique, télédétection, analyse spatiale et mathématiques. Les premiers travaux de recherche menés ont permis la mise en place d’un modèle d’analyse spatiale multi-connaissance – multi-scalaire basé sur l’intelligence artificielle. Ce modèle permet la caractérisation des paysages de centuriation, de leurs dynamiques et transformations de l'Antiquité à 2025
Les organismes de foncier solidaires : les limites de la démarchandisation
No full textInternational audienceCreated in France by the ALUR Act, the organismes de foncier solidaire (solidarity landholding organisations, OFS) have attracted growing interest from housing researchers and practitioners. Although the initiative is still too recent for a comprehensive evaluation of its social and territorial impacts, OFS represent a notable innovation in French property regulation. They are grounded in the principle of separating land from buildings and are governed by a specific legal instrument: the bail réel solidaire (real solidarity lease, BRS), introduced in 2015.This research note offers a critical contribution by examining the extent to which the OFS–BRS can be understood as a tool for the decommodification of housing. More specifically, it addresses the following question: to what extent can housing be decommodified without a corresponding decommodification of land? The objective is not to assess the effectiveness of OFS–BRS—a task that requires empirical investigation—nor to advocate for or against its adoption. Rather, the goal is to foster informed discussion on a relatively understudied topic and to identify potential points of tension within a system often cited as a model to emulate.Créés en France par la loi Alur, les organismes de foncier solidaires (OFS) bénéficient d’une attention soutenue dans le monde du logement. Si l’expérience est encore trop neuve pour avoir permis une évaluation complète de ces dispositifs et de leurs effets sociaux et territoriaux, les OFS constituent une nouveauté indéniable dans la régulation française de la propriété immobilière. Leur fonctionnement repose sur le principe de dissociation entre le foncier et le bâti, dissociation encadrée par une catégorie très particulière de contrat : le bail réel solidaire (BRS), créé en 2015.Cette note entend apporter une contribution au débat sur l'OFS-BRS en adoptant une approche critique. Il s’agit d’examiner dans quelle mesure le dispositif OFS-BRS peut être considéré comme un instruments de démarchandisation du logement. Plus précisément, l’article développe la question suivante : la démarchandisation du logement peut-elle être menée efficacement en l’absence de démarchandisation du foncier ? L’enjeu n’est pas de conclure à l’efficacité ou non de l'OFS-BRS (ce que seule une enquête empiriquement fondée pourrait faire) et encore moins d’appeler à son rejet. Il s’agit plutôt d’alimenter une discussion constructive sur un sujet encore mal connu pour identifier certains possibles points de vigilance d’un dispositif souvent érigé en modèle à suivre
Plant evenness improves forage mineral content in semi-natural grasslands
No full textInternational audienceCompared to intensive grasslands, semi-natural grasslands host species-rich and functionally diversified plant communities, and thus represent habitats of high conservation interest. Less is known about their ability to provide high-quality forage fitting livestock requirements regarding mineral content in particular, and thus contribute to livestock health. We address this question by measuring forage macro- and micro-mineral content across a range of semi-natural grassland types in nine locations in France and compare it to standards required for cattle health. We also developed a multi-criteria method using forage mineral concentrations and their recommended ranges to determine general mineral concentration quality (MinQ) in forage. We investigated if forage mineral content and MinQ was related to plant community composition, soil characteristics, and land-use intensity of semi-natural grassland forages. Good forage quality in terms of mineral content was found, matching the reference values, in the majority of the extensively managed semi-natural grasslands studied. Plant species evenness was positively correlated with MinQ. The forage mineral quality varied depending on the community weighted mean of the specific leaf area (SLACWM) and the leaf dry matter content (LDMCCWM). It increased with increasing SLACWM and decreased with increasing LDMCCWM. The results demonstrate that a good compatibility between plant evenness and forage mineral quality can be obtained in semi-natural grasslands which suggests that the continued management of these habitats can offer agronomic services as well as conservation values
EXHIBITING EGYPTIAN MUMMIES IN MUSEUMS: Tensions between “Legal norms” and “Museum Ethics”. What can 3D digitalisation and scenographic techniques contribute?
No full textInternational audienceThis scientific poster was produced as part of the EIT Culture & Creativity Innovation Forum (2025). It presents my doctoral research work in Information and Communication Sciences at Avignon University. The subject of my thesis is the exhibition of Egyptian mummies, and it examines the tensions that crystallize between legal standards on the one hand, and museum ethics on the other. It draws on the contribution of new 3D imaging technologies and scenographic staging techniques as potential compromise solutions.Ce poster scientifique a été réalisé dans le cadre du Forum de l’Innovation de l’EIT Culture & Creativity (2025). Il présente mon travail de recherche doctoral en Sciences de l'Information et de la Communication à Avignon Université. Le sujet de thèse porte sur l'exposition des momies égyptiennes et interroge les tensions qui s’y cristallisent entre d’un côté, les normes juridiques, et de l’autre, l’éthique muséale. Il convoque l’apport des nouvelles technologies d’imagerie 3D et les techniques scénographiques de mise en scène comme potentielles solutions de compromis
Risk factors for failed enhanced recovery after planned caesarean delivery
No full textInternational audienceIntroduction: The introduction of the Enhanced Recovery After Surgery (ERAS) protocol in the context of plannedcaesarean sections is a recent development, and the risk factors leading to the failure of this protocol remainlargely unknown.Objective: To identify the pre-operative maternal and obstetrical characteristics associated with failure of theERAS protocol.Materials and Methods: The ERAS protocol was implemented at Hˆopital Nord, Marseille, in August 2020, based onrecent literature. A retrospective cohort study was conducted from November 2020 to 2021, which includedwomen who underwent planned caesarean sections under the ERAS protocol. The primary outcome, protocolfailure, was a composite of hospitalization for >5 days due to maternal causes, urinary retention necessitatingcatheterization, gastrointestinal obstruction, admission to the intensive care unit, or early reintervention. Theinvestigated factors encompassed maternal sociodemographic characteristics, medical, surgical, and obstetrichistory, along with outcomes of the current pregnancy.Results: Of the 147 included women, 7.5 % experienced a failure of the ERAS protocol due to extended hospitalstays exceeding 5 days for maternal medical reasons or the installation of an indwelling urinary catheter tomanage acute urinary retention. Regarding the maternal factors studied, obesity, a history of abdominal surgery,and multiple caesarean sections showed no association with an increased frequency of ERAS failure.Conclusions: ERAS failure was seldom observed in the context of a planned caesarean section. No risk factors forERAS failure were identified, further encouraging us to apply this protocol to all patients undergoing a plannedcaesarean sectio
Legacy Effects of Flooding Duration on Growth and Reproductive Traits of Carex cinerascens in the Poyang Lake Wetland
No full textInternational audienceABSTRACT Alteration of flooding regimes due to global change may have cascading effects on plant community composition and associated ecosystem services. Here, we experimentally investigated the effects of six flooding regimes with contrasting combinations of flooding duration (5.5, 6 and 6.5 months) and submergence rate (from 3.3 to 17.5 cm/day) on the growth and reproductive traits of Carex cinerascens , a dominant plant species of the Poyang Lake wetland in southern China. The time span of this study included a summer flooding event and the following growing seasons (autumn of first year and spring of following year) before the return of the next flooding event. The six flooding treatments affected plant traits during the flooding and the following growing seasons, but the different submergence rates under the same flooding duration did generally not show significant influence on plant traits. The 6.5‐month flooding treatments had many fewer old (0.4 on average) and new stems (1 on average) than the 5.5‐month treatments (8.3 and 29 stems, respectively) at the end of the flooding. The treatments with 5.5 months of flooding had 23% more stems than the other treatments and 26% more community biomass than the 6‐month flooding treatments during the autumn growing season. The effects of summer flooding persisted in spring of the following year, but with an opposite trend of C. cinerascens growth traits response to flooding treatments compared to autumn. In addition, the 6‐month flooding treatments induced a higher number of inflorescences (39) than the 5.5‐month (22) and 6.5‐month floods (3). Altogether, our findings highlighted the important legacy effects of summer flooding with some trade‐offs between growth recovery (autumn) and resilience (following spring) and between resource allocation to biomass production in autumn and resource allocation to sexual reproduction in the following spring, that were both mediated by flooding duration
Crop diversity trends captured by Indigenous and local knowledge: introduction to the symposium
No full textSymposium/Special IssueInternational audienc