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Isolated multiple minute digitate keratoses of the penile shaft in an adult
No full textInternational audienceWe report the first documented case of adult-onset Multiple Minute Digitate Keratoses (MMDK) localized exclusively to the penile shaft. Dermoscopic and histopathological examination revealed distinctive features that assisted in excluding other keratinization disorders. This unusual presentation expands the clinical spectrum of MMDK and highlights the importance of careful clinicopathological correlation in genital keratoses
Multi-satellite derived data reveals spatiotemporal dynamics of carbon-water coupling and its drivers in tropical ecosystems
No full textInternational audienc
Attributing GHG emissions to individual facilities using multi-temporal hyperspectral images: Methodology and applications
No full textInternational audienc
Association between physical activity with disease activity and functional disability in patients with inflammatory bowel disease
No full textInternational audienceBackground and aims: The impact of Physical activity (PA) on the activity of inflammatory bowel disease (IBD) remains unclear.Patients and methods: A descriptive cross-sectional study included consecutive patients with Crohn's disease (CD), ulcerative colitis (UC). PA was assessed using the short International Physical Activity Questionnaire. PA was classified as low, medium or high PA. PA was also assessed according to WHO recommendations. IBD activity was evaluated using PRO-2, while IBD-related disability was assessed with the IBD-disk questionnaire.Results: Among a total of 2514 patients (1715 CD), only 28.8% met the WHO recommendations on PA (49.8% had low PA, 35.2% had medium PA, and 15.0% had high PA). Medium and high PA levels were associated with a higher rate of patient-reported clinical remission in patients with CD (OR 1.30 [1.08-1.57] for medium PA, and 1.33 [1.03-1.72] for high PA vs. low PA; p-trend=0.02) but not in those with UC. Higher PA levels were associated with less IBD-related disability in both CD, and UC.Conclusion: In a large cohort of IBD patients, moderate and high PA was associated with higher rates of clinical remission in patients with CD and lower IBD-related disability in both CD and UC patients
FORMSpoT: A Decade of Tree-Level, Country-Scale Forest Monitoring
No full textThe recent decline of the European forest carbon sink highlights the need for spatially explicit and frequently updated forest monitoring tools. Yet, existing satellite-based disturbance products remain too coarse to detect changes at the scale of individual trees, typically below 100 m². Here, we introduce FORMSpoT (Forest Mapping with SPOT Time series), a decade-long (2014-2024) nationwide mapping of forest canopy height at 1.5 m resolution, together with annual disturbance polygons (FORMSpoT-Δ) covering mainland France. Canopy heights were derived from annual SPOT-6/7 composites using a hierarchical transformer model (PVTv2) trained on high-resolution airborne laser scanning (ALS) data. To enable robust change detection across heterogeneous acquisitions, we developed a dedicated post-processing pipeline combining co-registration and spatio-temporal total variation denoising. Validation against ALS revisits across 19 sites and 5,087 National Forest Inventory plots shows that FORMSpoT-Δ substantially outperforms existing disturbance products. In mountainous forests, where disturbances are small and spatially fragmented, FORMSpoT-Δ achieves an F1-score of 0.44, representing an order of magnitude higher than existing benchmarks. By enabling tree-level monitoring of forest dynamics at national scale, FORMSpoT-Δ provides a unique tool to analyze management practices, detect early signals of forest decline, and better quantify carbon losses from subtle disturbances such as thinning or selective logging. These results underscore the critical importance of sustaining very high-resolution satellite missions like SPOT and open-data initiatives such as DINAMIS for monitoring forests under climate change
Land surface model underperformance tied to specific meteorological conditions
No full textInternational audienceThe exchange of carbon, water, and energy fluxes between the land and the atmosphere plays a vital role in shaping global change and extreme events. Yet our understanding of the theory of this surface-atmosphere exchange, represented via land surface models (LSMs), continues to be limited, highlighted by marked biases in model-data benchmarking exercises. Here, we leveraged the PLUMBER2 dataset of observations and model simulations of terrestrial sensible heat, latent heat, and net ecosystem exchange fluxes from 153 international eddy-covariance sites to identify the meteorological conditions under which land surface models are performing worse than independent benchmark expectations. By defining performance relative to three sophisti-cated out-of-sample empirical models, we generated a lower bound of performance in turbulent flux prediction that can be achieved with the input information available to the land surface models during testing at flux tower sites. We found that land surface model performance relative to empirical models is worse at edge conditions -that is, LSMs underperform in timesteps where the meteorological conditions consist of coinciding relative extreme values. Conversely, LSMs perform much better under "typical" conditions within the centre of the meteorological variable distributions. Constraining analysis to exclude the edge conditions results in the LSMs outperforming strong empirical benchmarks. Encouragingly, we show that refinement of the performance of land surface</div
Vers une normalisation du contentieux disciplinaire des universitaires
No full textInternational audienc
Global transport of stratospheric aerosol produced by Ruang eruption from EarthCARE ATLID, limb-viewing satellites and ground-based lidar observations
No full textInternational audienceThe Atmospheric LIDar (ATLID) instrument of the ESA’s Earth Cloud, Aerosol and Radiation Explorer (EarthCARE) satellite mission launched in May 2024 provides high-resolution vertical profiling of aerosols and clouds at 355 nm. Fully operational since July 2024, ATLID has been witness to a significant perturbation of stratospheric aerosol budget following the eruptions of Ruang volcano (Indonesia) in late April 2024. Using ATLID together with limb-viewing satellite instruments (OMPS-LP and SAGE III), we quantify the stratospheric aerosol perturbation generated by the Ruang eruption and characterize the global transport of volcanic aerosols. To evaluate the ATLID performance in the stratosphere, its data are compared with collocated ground-based lidar observations at various locations in both hemispheres and overpass-coordinated balloon flights carrying AZOR backscatter sonde. The intercomparison with suborbital observations suggests excellent performance of ATLID in the stratosphere and proves its capacity to accurately resolve fine structures in the vertical distribution of stratospheric aerosols. Using various satellite observations, we show that Ruang’s eruptive sequence in April 2024 produced eruptive columns reaching 25 km altitude, and resulted in a doubling of the tropical stratospheric aerosol abundance for several months. The eruption timing in austral Fall and its high-altitude reach fostered efficient poleward transport into the southern extratropics during austral Winter 2024. By the time of the austral Fall 2025, the sulphate aerosols from Ruang have spread across the entire Southern hemisphere and were most probably entrained by the 2025 Antarctic polar vortex, potentially enhancing the polar stratospheric cloud occurrence
Panorama rapide de l’actualité « Numérique » des semaines du 15 décembre 2025 au 5 janvier 2026
No full textNational audiencePrésentation et analyse de l'actualité du droit du numérique :Données personnes-RGPD : le système de caméras-piétons correspond à une collecte directe et non indirecte: Arrêt de la Cour de justice dans l'affaire C-422/24 Storstockholms Lokaltrafik- Surveillance au travail : le Conseil d’État valide partiellement les outils de suivi d’Amazon : CE, N° 492830, 23 décembre 2025- 3. Logiciels de gestion sociale et RGPD : la CNIL sanctionne NEXPUBLICA France : Délibération de la formation restreinte n° SAN – 2025-015 du 22 décembre 2025- 4. L’Arcep face au projet de loi DADUE : un avis sans portée contraignante mais stratégique : Avis ARCEP du 5 janvier 2026II. IA-Quand l’IA invente la jurisprudence : : un avertissement explicite du juge aux praticiens : TJ de Périgueux, pôle social, n° RG 23/00452, n° Portalis DBXP-W-B7H-EJLQIII. Plateforme- Affaire Shein : la justice refuse le blocage, l’État ne désarme pas : Tribunal judiciaire de Paris, 19 décembre 2025, n° RG252/786- Affaires Airbnb : la société n’a pas la qualité d’hébergeur et ne bénéficie pas du régime de responsabilité des hébergeurs de contenus : Cass. Com. 7 janvier 2026, n°23-22.723 et Cass. Com 7 janvier 2026, n° D 24-13.163- Affaire Jean Pormanove / Kick : Le TJ de Paris rejette le blocage de la plateforme Kick.com mais ordonne la suppression des contenus violents: TJ Paris, 19 décembre 2025, N° RG 25/57054 - N°Portalis : 352J-W-B7J-DAY6
