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Gaussian Splatting Map Registration with Orthographic Bird's-Eye-View Renderings
No full textInternational audienceGaussian Splatting (GS) is a promising scene representation for visual localization and SLAM. Recent works have explored loop closure detection via Gaussian registration, improving map consistency and accuracy. However, achieving reliable registration given two GS representations from different acquisitions remains challenging. In this paper, we propose a complete pipeline to perform the matching and registration given two GS maps. The proposed method is grounded in generating orthographic bird's-eye views (BEVs) of optimized Gaussian models. The proposed approach leverages photometric and geometric information extracted directly from the GS to provide a trade-off of accuracy and invariance to different viewing changes (e.g., as types of GS maps, seasons, or illumination). Unlike existing 3D registration methods, which become inefficient as the number of Gaussians grows, our approach leverages 2D orthographic renders thus considerably reducing the registration complexity. Experiments on two public datasets demonstrate that our method achieves higher accuracy than several existing baselines, while also maintaining better registration results when dealing with GS maps learned by different techniques (e.g., 3DGS to LightGaussian), or GS maps presenting viewing changes such as varying illumination conditions.</div
Solid and liquid fractions of digestate: manure or slurry just like any others?
No full textInternational audienceBiogas digestates are increasingly used as organic fertilizers. However, their impact on soil microbiota quality remains debated. Indeed, little is known about soil microbial communities responses to a given digestate depending on i) the fraction applied – whole (FYM_WD), liquid (FYM_LD), or solid (FYM_SD) – and/or ii) the physicochemical properties of the receiving soil. In a 42-day microcosm experiment, we applied different fractions of a same digestate to three soils with contrasting physicochemical and climatic characteristics and compared their effects on the abundance and diversity of the soil microbial communities. The experiment also included four additional treatments: cattle manure (CM), cattle slurry (CS), a mineral fertilizer, and an unfertilized control. Forty-two days after application, a significant ‘treatment’ effect was observed on soil microbial indicators for the two coarser-textured soils (P < 0.05). In the sandy loam-textured soil, FYM_SD resulted in a 40 % greater soil microbial biomass than FYM_WD or FYM_LD (P = 0.05). The effect of FYM_SD on soil microbial biomass was equivalent to that of CM or CS (P > 0.05), whereas the effect of FYM_LD more closely resembled that of CS. Moreover, FYM_SD input resulted in a significantly different prokaryotic community structure compared to FYM_LD-fertilized soil, but was equivalent to that of the CM-fertilized soil (P > 0.05). In the loam-textured soil, FYM_SD input resulted in a 20 % lower prokaryotic richness than FYM_LD. Similarly, the fungal community structure was affected the digestate fraction (P = 0.04), and the effects of FYM_SD and CM on fungal community structure were comparable (P > 0.05). Overall, these results demonstrate that digestate fraction influence soil microbial communities in a soil-type dependent manner
Interdiction des paiements. Remboursement de prélèvements SEPA
No full textInternational audience(Com. 2 juill. 2025, no 24-11.680, FS-B, Sté Banque Fiducial c/ Sté AJRS et a., D. 2025. 1206 ; Rev. sociétés 2025. 566, obs. F. Reille
L'impossible extension de la clause compromissoire contenue dans le contrat d'entreprise au contrat de sous-traitance
No full textInternational audience(Paris, 5 mars 2025, no 24/17958, Sté Euro Disney Associés c/ Sté ART Bâtiment et autre
Recevabilité du recours en annulation enregistré à tort sous l'onglet déclaration d'appel
No full textInternational audience(Paris, 16 janv. 2025, no 24/02660, Audis c/ Warenautomaten Gmbh
Développer des recettes de viandes adaptées aux capacités de mastication et de salivation des personnes âgées : l’approche participative du projet ALIMADENT
No full textInternational audienceThe aim of this project was to design and validate meat recipes adapted to the chewing and salivary capacities of older people. It relied on a unique participatory approach, involving older people in both funding the project funding and developing the recipes. It consisted in 3 steps: a survey to investigate meat purchasing and preparation habits among older people; recipe development by two professional chefs using techniques designed to ensure tender and juicy meat; home testing with two panels of older people assessing the feasibility of the recipes as well as the acceptability and the texture of the dishes. This work led to the creation of a recipe booklet comprising four technical sheets (choice of cuts, slicing against the grain, low-temperature cooking, cooking in liquid) and 15 recipes: 3 for each cooking method (pan-fried, oven-roasted and pot-braised), 3 confit-style dishes, and three based on minced meat recipes. This booklet provides a practical tool to maintain meat consumption among the older people, thereby supporting adequate protein intake and prevent undernutrition in this population.L’objectif de ce travail était de concevoir et valider des recettes de viande adaptées aux capacités de mastication et de salivation des personnes âgées. Ce travail s’est appuyé sur une approche participative inédite, impliquant les seniors à la fois dans le financement du projet et le développement des recettes. Il s’est articulé en 3 étapes : réalisation d’une enquête sur les habitudes d’achat et de préparation de la viande des seniors ; développement de recettes par deux chefs cuisiniers en utilisant des techniques permettant d’avoir une viande tendre et juteuse ; réalisation de tests à domicile auprès de deux panels de personnes âgées pour évaluer la faisabilité des recettes ainsi que l’appréciation et la texture des plats obtenus. Ceci a permis de finaliser un livret de recettes contenant 4 fiches techniques (choix des morceaux, découpe à contre-fibre, cuisson à basse température, cuisson dans un liquide) et 15 recettes : 3 recettes par mode de cuisson (sautée à la poêle, rôtie au four et mijotée en cocotte), 3 recettes de viande confite et 3 recettes à base de viande hachée. Ce livret constitue un outil concret pour soutenir la consommation de viande chez les personnes âgées, contribuant ainsi au maintien des apports protéiques et à la prévention de la dénutrition au sein de cette population. Summary The aim of this project was to design and validate meat recipes adapted to the chewing and salivary capacities of older people. It relied on a unique participatory approach, involving older people in both funding the project funding and developing the recipes. It consisted in 3 steps: a survey to investigate meat purchasing and preparation habits among older people; recipe development by two professional chefs using techniques designed to ensure tender and juicy meat; home testing with two panels of older people assessing the feasibility of the recipes as well as the acceptability and the texture of the dishes. This work led to the creation of a recipe booklet comprising four technical sheets (choice of cuts, slicing against the grain, low-temperature cooking, cooking in liquid) and 15 recipes: 3 for each cooking method (pan-fried, oven-roasted and pot-braised), 3 confit-style dishes, and three based on minced meat recipes. This booklet provides a practical tool to maintain meat consumption among the older people, thereby supporting adequate protein intake and prevent undernutrition in this population
A new ceramide and sterols with moderate antibiofilm activity from the underexplored polypore Mushroom <i>Lenzites acuta</i>
No full textInternational audienceLenzites acuta Berk. is a wood-decaying polypore mushroom from tropical forests that remains chemotaxonomically unexplored. In this study, the chemical constituents from the methanolic extract of its fruiting bodies yielded a new ceramide, polyporamide (1), together with three sterols: stellasterol (2), ergosterol (3), and ergosterol peroxide (4). Acetylation of the new ceramide (1) afforded a new hemi-synthetic derivative, polyporamide tetraacetate (1a). Structural elucidation was achieved by 1D and 2D NMR, ESI-MS, and comparison with literature data. The antibacterial activity of the extract and isolated compounds was assessed against Pseudomonas aeruginosa and Staphylococcus aureus. Compound 1a displayed the strongest antibacterial effect, with MIC values of 128 µg/mL (P. aeruginosa) and 64 µg/mL (S. aureus). Antibiofilm activity was evaluated using a microtiter plate assay with safranine staining at sub-MIC concentrations. Compound 4 exhibited the highest inhibition of biofilm formation, with 69.35 % inhibition against P. aeruginosa and 51.59 % against S. aureus at 128 µg/mL. Although less active than the reference drug gentamicin, compounds 1a and 4 appear as potential scaffolds for the development of antibacterial and antibiofilm agents. This study constitutes the first report on the chemical constituents of L. acuta and highlights its potential as a source of bioactive natural products
Secure and Efficient Tele-Radiography Based on the Fusion of a Convolutional Autoencoder and Chaotic Latent Encryption
No full textInternational audienc
Drivers of viral prevalence in landscape‐scale pollinator networks across Europe: honey bee viral density, niche overlap with this reservoir host and network architecture.
No full textInternational audienceViral transfer from managed pollinators potentially threatens wild pollinators and may be exacerbated by land‐use changes. Our causal models and plant‐pollinator network data from 48 European urban and agricultural landscapes revealed the ecological mechanisms underpinning viral transmission. Host identity, network architecture and land‐use modulated viral dynamics (black queen cell virus, BQCV; deformed wing virus, DWV‐A and DWV‐B). Viral prevalence in wild pollinators was driven by viral density in the reservoir host: honey bees, and secondarily by trophic niche overlap with these managed pollinators. Modular networks limited BQCV prevalence, which was driven by reduced honey bee niche overlap, suggesting minimal onward transmission among wild pollinators. Landscapes supporting greater wild pollinator abundance diluted DWV‐B transmission; in urban landscapes managed honey bees and wild pollinators experienced higher and lower BQCV prevalence, respectively. Disease in managed bee colonies and land‐use changes that concentrate pollinator foraging interactions present potential viral risks to wild pollinator health
Experimental ASP Database of Gas and Vapor Adsorption on Solids
No full textThe ASP research team of the Université de Bourgogne in France is an expert in the adsorption of gases and vapors in nanoporous solids. For more than 40 years, it has acquired extensive adsorption data and developed its own adsorption database. This base contains more than 1000 adsorption equilibrium datasets (adsorption isotherms, isobars and heats of adsorption) for 49 gases or vapors on adsorbents representing ~ 15 different classes of porous solids. This ASP database is now open free of charge to the scientific community. This article reminds some basic thermodynamic definitions used in this database and presents the experimental techniques used. It includes also the references to the adsorption data published to date and explains how to use the database