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Metabarcoding outperforms traditional electrofishing in decapod and fish inventories, paving the way for enhanced biodiversity monitoring in the Caribbean
No full textInternational audienceEnvironmental DNA (eDNA) metabarcoding revolutionized the biodiversity monitoring in aquatic ecosystems, giving access to taxonomic lists in a non-disruptive way. Although the method has limits, such as reduced taxonomic resolution for certain groups and difficulties in estimating species abundance, it has proven its effectiveness in many contexts. In Martinique, a Caribbean island, traditional methods like electrofishing (TEF) are known to be stressful for organisms, non-selective and disruptive for the ecosystem, and have been progressively abandoned for routine monitoring. The aim of this project was to explore the possibility of using the eDNA-based metabarcoding method for the detection of fish and decapods in Martinique streams, by first validating it with TEF. We selected 14 stations, a representative panel of the river diversity, and performed TEF and eDNA-based monitoring to compare both, based on the species richness. Then, from eDNA taxonomic inventories, we assessed the ecological state of the studied stations, using Simpson index and investigated how stations abiotic characteristics shape assemblages. Here, we confirmed the eDNA metabarcoding method is a reliable tool for monitoring fish and decapods, confirming most of the taxa caught by TEF and revealing the presence of additional (native and/or invasive) species. We faced some issues in discriminating some genetically close species (e.g. Sicydium sp.) potentially leading to under-representation in community assemblages, but not in functional diversity. Additional efforts are needed to raise standardized protocols, but we encourage stakeholders to join such an initiative to shed light on the rich biodiversity in sometimes poorly studied regions and to face invasions
외국어 환경에서의 언어적·문화적 중재 ― 보스니아-헤르체고비나의 프랑스어(FLE) 수업에서 예술을 중심으로 한 실험 연구
No full textInternational audienc
Comparison of marker-based and center-of-pressure-based approaches for calculating the margin of stability
No full textInternational audienceIntroduction: The margin of stability (MoS) is a widely used biomechanical measure of dynamic stability during gait, typically computed as the distance between the extrapolated center of mass (xCoM) and the center of pressure (CoP). According to Hof’s model, the CoP-based approach is considered the preferred approach for defining where the xCoM is relative to the BoS and calculating the MoS. However, marker-based approaches often need to be used in research and clinical settings due to practical constraints and the lack of standardization in marker selection introduces variability in MoS estimates. This study aimed to assess the difference between different marker-based approaches and the CoP-based approach.Methods: Using an open-access dataset of 30 healthy adults walking at a selfselected speed, MoS was calculated continuously during the stance phase in both the anteroposterior (AP) and mediolateral (ML) directions. Various marker-based approaches were evaluated, including commonly used markers (AP: HEEL, TOE; ML: HEEL, ANKLE, M5, MID) and a novel approach using the most anterior (for AP MoS) or most lateral (for ML MoS) marker in contact with the ground at each time point (AP: MOST ANTERIOR; ML: MOST LATERAL). Differences were quantified using paired t-tests with statistical parametric mapping and root mean square differences (RMSD) relative to the CoP-based approach.Results: Results showed that the MOST ANTERIOR approach had the closest agreement with the CoP-based approach for AP MoS (RMSD = 47.04 mm), while the HEEL marker provided the closest agreement with the CoP-based approach for the ML MoS estimates (RMSD = 17.93 mm).Conclusion: These findings highlight the importance of marker selection in MoS analysis and suggest that specific marker configurations, particularly those grounded in foot-ground contact for the AP-MoS, provide closest estimates relative to the CoP-based approach. This study offers evidence-based recommendations for improving consistency and comparability in future MoS studies using marker-based approaches
La protection pénale du mineur dans l’environnement numérique
No full textInternational audiencePrésentation de la spécificité variable et de la diversité des infractions protégeant le mineur en ligne
Al<sub>2</sub>O<sub>3</sub> barrier layer for the synthesis of high-quality thermochromic SmNiO<sub>3</sub> thin films annealed in air
No full textInternational audienceThis study presents a soft synthesis method for producing thin films of SmNiO3 with enhanced thermochromic properties after annealing in air. The films were fabricated using magnetron co-sputtering under reactive atmosphere, followed by a low temperature annealing process at 550◦C for min to crystallize the thermochromic perovskite phase. Structural and chemical analyses, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), confirmed the successful formation of the orthorhombic SmNiO3 phase with lattice parameters consistent with previous studies. The thermochromic properties of the films were assessed by electrical measurements displaying an important decrease in resistivityof several decades from −263 to 250◦C, and through temperature-dependent transmittance and reflectance measurements, revealing significant optical changes in the infrared range (2.5–25 μm) between 30◦C and 190◦C. As anticipated, when deposited atop the amorphous SmNiO3 thin film, a thin Al2O3 layer effectively acted as a diffusion barrier. This approach stabilizes Ni3+ and enhances thermochromic properties compared to uncapped SmNiO3 films annealed in air. Electron energy loss spectroscopy (EELS) confirmed a high Ni3+ concentration of ∼ 85%, enabling an emissivity modulation of >20% in the 8–14 μm range. This performance is comparable to that of samples annealed under extreme conditions (oxygen pressure of 200 bars at 950◦C). Moreover, the atmospheric-pressure process offers a scalable, industrially viable route for smart applications such as solar thermal coatings and passive radiative cooling devices
Cognition incarnée : quel apport pour l'étude de la cognition et du bien être animal ?
No full textInternational audienc
High-pressure synthesis of PbN 2 , the missing group 14 AN 2 -type compound
No full textInternational audienceThe direct reaction of Pb with molecular nitrogen was investigated using a laser-heated diamond anvil cell combined with high-pressure in situ synchrotron X-ray powder diffraction measurements and Raman spectroscopy. From the results of the experiments and DFT calculations, it was revealed that a novel PbN2 was successfully synthesized above 50 GPa, and it was observed to crystallize in a tetragonal system (indexation in the CuAl2-type structure, I4/mcm), comprising PbN8 units connected via N-N dimers. Room-temperature compression and decompression experiments revealed that PbN2 retained its structural integrity up to a pressure of approximately 90 GPa, while it decomposed into lead and nitrogen at around 15 GPa. The experimental evidence indicates that the encapsulated nitrogen dumbbells act as anionic units, (N2)2- interaction with the lead lattice. The newly synthesized PbN2 exhibits a distinct crystal structure in comparison to the pyrite form of the other group-14 pernitrides (SiN2, GeN2, and SnN2) that have been previously reported. This finding provides novel insights into the high-pressure crystal chemistry of nitrogen-based compounds
La méditation de pleine conscience peut-elle réduire les effets du vieillissement sur la mémoire ?
No full textInternational audienc
50 anos após o 25 de Abril: memória(s) e representações da Revolução dos Cravos e da imigração portuguesa em França
No full textSandra Teixeira et Georges da Costa, « Introduction : 50 ans après le 25 avril : mémoire(s) et représentations de la Révolution des Œillets et de l’immigration portugaise en France. », Reflexos [En ligne], 10 | 2025, mis en ligne le 19 décembre 2025, consulté le 06 janvier 2026. URL : http://interfas.univ-tlse2.fr/reflexos/2284SommaireSandra Teixeira et Georges da CostaIntroduction : 50 ans après le 25 avril : mémoire(s) et représentations de la Révolution des Œillets et de l’immigration portugaise en France.Introdução: 50 anos depois do 25 de Abril: memória(s) e representações da Revolução dos Cravos e da imigração portuguesa em França.Introduction: 50 Years After April 25th: Memories and Representations of the Carnation Revolution and Portuguese Immigration in France.Sandra TeixeiraDictature et immigration portugaises en bandes dessinées : un enjeu mémoriel vu de FranceDitadura e imigração portuguesas em bandas desenhadas: uma questão memorial vista de FrançaPortuguese dictatorship and immigration in comics: a memorial issue as seen from France Marco GomesDo Estado Novo para a Revolução dos Cravos : Girolamo Messeri, o embaixador incómodo. Luta política e liberdade de imprensaDe l'Estado Novo à la Révolution des Œillets : Girolamo Messeri, l'ambassadeur dérangeant. Lutte politique et liberté de la presseFrom the Estado Novo to the Carnation Revolution: Girolamo Messeri, the uncomfortable ambassador. Political struggle and freedom of the pressMarc GruasLa Révolution des Œillets dans la lorgnette des quotidiens français : L’Humanité, Libération et Combat face à la présidentielle de 1974A Revolução dos Cravos na Imprensa Francesa: Uma Análise de L’Humanité, Libération e Combat no Contexto das Eleições Presidenciais de 1974The Carnation Revolution in the French Press: An Analysis of l’Humanité, Libération and Combat in the Context of the 1974 Presidential ElectionFrancisco Carlos Palomanes MartinhoA ditadura militar brasileira e a Revolução dos Cravos : pragmatismo, controle e ambivalênciasLa dictature militaire brésilienne et la Révolution des Œillets : pragmatisme, contrôle et ambivalenceThe Brazilian military dictatorship and the Carnation Revolution: pragmatism, control and ambivalenceCristina ClímacoL’immigration portugaise en France pendant la Seconde Guerre mondiale et le travail forcé en Allemagne nazieA imigração portuguesa em França durante a II Guerra Mundial e o trabalho forçado na Alemanha naziPortuguese immigration to France during the Second World War and forced labour in Nazi GermanyAgnès PellerinGrândola, Vila Morena, entre histoire et mémoire : une chanson de révolution dans le cinéma révolutionnaire portugaisGrândola, Vila morena between History and Memory: a Revolution song in the Portuguese revolutionary cinema Grândola, Vila Morena, entre a história e a memória: uma canção de revolução no cinema revolucionário portuguêsAna Isabel FreitasLá em Baixo : une approche en immersion cinématographique du folklore de l’immigration portugaise en FranceLá em Baixo: uma abordagem em imersão cinematográfica do folclore da imigração portuguesa em FrançaLá em Baixo: An Immersive Cinematographic Approach to the Folklore of Portuguese Immigration in FranceMaria Beatriz Rocha-TrindadeMigrações Portuguesas - Trajetórias e MemóriaMigrations portugaises – Trajectoires et MémoirePortuguese Migrations – Trajectories and MemorySandra TeixeiraLinda de Suza (1948-2022) ou la valise qui cartonne : l’« étrangère » et son répertoire bilingueLinda de Suza (1948-2022) ou o sucesso da mala de cartão : a “estrangeira” e o seu repertório bilingueLinda de Suza (1948-2022) or the success of the cardboard suitcase: the “foreigner” and her bilingual repertoireAgnès LevécotEis uma história… de Olga Gonçalves : voyage au bout de la nuit migratoireEis uma história… de Olga Gonçalves: viagem ao fim da noite migratóriaEis uma história… by Olga Gonçalves: life of my last migrationPierre MarieEnseigner le 25 Abril à partir de documents historiques : exemples de ressourcesEnsinar o 25 de Abril a partir de documentos históricos: exemplos de recursosTeaching April 25 using historical documents: resource examplesEmmanuelle GuerreiroEntrevista exclusiva do Almirante Manuel B. Martins Guerreiro, Militar da Revolução do 25 de Abril de 1974Entretien exclusif de l’Amiral Manuel B. Martins Guerreiro, Militaire de la Révolution du 25 Avril 1974Exclusive Interview with Admiral Manuel B. Martins Guerreiro, Military Officer of the April 25, 1974 RevolutionVariaSandra TeixeiraEm torno da mobilidade. Provérbios, expressões idiomáticas, frases consagradas. Edition bilingue portugais-anglais, Viseu, Alma Letra, 2023Agnès PellerinLuís, Trindade, Silêncio Aflito. A sociedade portuguesa através da música popular (dos anos 40 aos anos 70), Lisboa, Tinta da China, 202
Comparaison de méthodes de commande directe de puissance appliquées à un filtre actif triphasé pour améliorer la qualité de l'énergie au point d'injection de sources renouvelables
No full textL'objectif de ce travail est d'évaluer les performances et de comparer différentes méthodes de contrôle directe de puissance (Direct Power control-DPC). Des stratégies de commande en suivi de consigne et par rejet de perturbation appliquées à un filtre actif parallèle sont investiguées.International audienc