Author: "Université Clermont Auvergne" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Université Clermont Auvergne"' showing total 44,172 results

Start Over Author "Université Clermont Auvergne"

44,172 results on '"Université Clermont Auvergne"'

1. Helping Osteoarthritis Patients to Walk With NSAID (PERIPATEI)

Author: Plateforme d'Investigation Clinique, INSERM CIC1405, CHU de Clermont-Ferrand, France, Fondation Apicil, Médecine Physique et Réadaptation, CHU de Clermont-Ferrand, France, Médecine du Sport et Explorations Fonctionnelles, CHU de Clermont-Ferrand, France, Rhumatologie, CHU de Clermont-Ferrand, France, Direction de la Recherche Clinique et des Innovations, CHU de Clermont-Ferrand, France, SARL BOUCHARENC, Saint-Chély d'Apcher, France, Inserm U1107 ' Neuro-Dol ', Clermont-Ferrand, France, and Université Clermont-Auvergne, France
Published: 2024

2. Evaluation of the Impact of the Use of NewSpringForMe on Transplanted Patients' Quality of Life and Support (NSFM)

Author: Saint-Louis Hospital, Paris, France, Nutricia Nutrition Clinique, Clinicprosport, ELLYE, Association Aïda, Gilead Sciences, Pfizer, Groupe Apicil, Association Laurette Fugain, Fondation du LEEM, Fondation AFNIC, Pierre Fabre Medicament, Novartis Pharmaceuticals, University Hospital, Clermont-Ferrand, and LAPSCO, Université Clermont-Auvergne
Published: 2023

3. Design of an Augmented Reality System by Integration of CT Scan or MRI Data With Endoscopic Images for Video-assisted Endonasal Endoscopic Surgery (NORA)

Author: Institut Pascal (CNRS 6602/ Université Clermont Auvergne / SIGMA), équipe EnCoV, Collin medical, Audition Conseil, CHU Clermont-Ferrand (Appel d'offre Interne), and Bourse Année-Recherche par l'Agence Régionale de Santé Auvergne Rhone Alpes pour Mme Luce COMPAGNONE pour l'année 2020-2021
Published: 2021

4. Burn Out Among Medical Family Doctors (BOUM)

Author: UFR Médecine & Pharmacie - Université Clermont Auvergne
Published: 2020

5. Rheological change and degassing during a trachytic Vulcanian eruption at Kilian Volcano, Chaîne des Puys, France

Author: Colombier, Mathieu, Shea, Thomas, Burgisser, Alain, Druitt, Timothy H., Gurioli, Lucia, Müller, Dirk, Cáceres, Francisco, Hess, Kai-Uwe, Boivin, Pierre, Miallier, Didier, Dingwell, Donald B., Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, München, Germany, Geology and Geophysics, University of Hawai’i at Mānoa, Honolulu, USA, Univ. Savoie Mont Blanc, CNRS, IRD, ISTerre, Le Bourget du Lac, France, Université Clermont Auvergne -CNRS-IRD, OPGC, Laboratoire Magmas et Volcans, Clermont-Ferrand, France, Université Clermont Auvergne, CNRS–IN2P3, LPC, Clermont-Ferrand, France, Ludwig-Maximilians-Universität München (LMU), University of Hawai‘i [Mānoa] (UHM), Institut des Sciences de la Terre (ISTerre), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Grenoble Alpes (UGA)-Université Gustave Eiffel-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Laboratoire Magmas et Volcans (LMV-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Clermont Auvergne (UCA), Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, München, Geology and Geophysics, University of Hawai’i at Mānoa, Honolulu, HI, Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0006,CLERVOLC,Clermont-Ferrand centre for research on volcanism(2010), ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0006/10-LABX-0006,CLERVOLC,Clermont-Ferrand centre for research on volcanism(2010), ANR: 16-IDEX-0001,CAP 20-25,CAP 20-25 (I-Site)(2017), Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut national des sciences de l'Univers (INSU - CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: 010504 meteorology & atmospheric sciences, [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography, Silicic, Effusive-explosive transitions, engineering.material, Cristobalite, 010502 geochemistry & geophysics, 01 natural sciences, Microlite, Nanolites, Geochemistry and Petrology, Degassing, James, Rhyolite, ddc:550.724, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, Deputy Executive Editor: J, Tephra, Petrology, 0105 earth and related environmental sciences, [PHYS]Physics [physics], geography, geography.geographical_feature_category, Vulcanian eruption, Trachytic magma, Viscosity, Andesite, Cristobalite Editorial responsibility: M, Cristobalite 14 15, Tadeucci, Outgassing, Volcano, 13. Climate action, Magma Viscosity, engineering, 13 Crystallization, Crystallization, Geology
Abstract: Magma ascent during silicic dome-forming eruptions is characterized by significant changes in magma viscosity, permeability, and gas overpressure in the conduit. These changes depend on a set of parameters such as ascent rate, outgassing and crystallization efficiency, and magma viscosity, which in turn may influence the prevailing conditions for effusive versus explosive activity. Here, we combine chemical and textural analyses of tephra with viscosity models to provide a better understanding of the effusive-explosive transitions during Vulcanian phases of the 9.4 ka eruption of Kilian Volcano, Chaîne des Puys, France. Our results suggest that effusive activity at the onset of Vulcanian episodes at Kilian Volcano was promoted by (i) rapid ascent of initially crystal-poor and volatile-rich trachytic magma, (ii) a substantial bulk and melt viscosity increase driven by extensive volatile loss and crystallization, and (iii) efficient degassing/outgassing in a crystal-rich magma at shallow depths. Trachytic magma repeatedly replenished the upper conduit, and variations in the amount of decompression and cooling caused vertical textural stratification, leading to variable degrees of crystallization and outgassing. Outgassing promoted effusive dome growth and occurred via gas percolation through large interconnected vesicles, fractures, and tuffisite veins, fostering the formation of cristobalite in the carapace and talus regions. Build-up of overpressure was likely caused by closing of pore space (bubbles and fractures) in the dome through a combination of pore collapse, cristobalite formation, sintering in tuffisite veins, and limited pre-fragmentation coalescence in the dome or underlying hot vesicular magma. Sealing of the carapace may have caused a transition from open- to closed- system degassing and to renewed explosive activity. We generalize our findings to propose that the broad spectrum of eruptive styles for trachytic magmas may be inherited from a combination of characteristics of trachytic melts that include high water solubility and diffusivity, rapid microlite growth, and low melt viscosity compared to their more evolved subalkaline dacitic and rhyolitic equivalents. We show that trachytes may erupt with a similar style (e.g., Vulcanian) but at significantly higher ascent rates than their andesitic, dacitic, and rhyolitic counterparts. This suggests that the periodicity of effusive-explosive transitions at trachytic volcanoes may differ from that observed at the well-monitored andesitic, dacitic, and rhyolitic volcanoes, which has implications for hazard assessment associated with trachytic eruptions., ERC ADV 2018
Published: 2020

6. The Hidden Giant: How a rift pulse triggered a cascade of sector collapses and voluminous secondary mass‐transport events in the early evolution of Santorini

Author: Preine, Jonas, Karstens, Jens, Hübscher, Christian, Crutchley, Gareth J., Druitt, Timothy H., Schmid, Florian, Nomikou, Paraskevi, 2 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany, 1 University of Hamburg Institute of Geophysics Hamburg Germany, 3 CNRS IRD OPGC Laboratoire Magmas et Volcans Université Clermont Auvergne Clermont‐Ferrand France, and 4 Department of Geology and Geoenvironment National and Kapodistrian University of Athens Zografou Athens Greece
Subjects: Geology, ddc:551.21
Abstract: Volcanic island sector collapses have the potential to trigger devastating tsunamis and volcanic eruptions that threaten coastal communities and infrastructure. Considered one of the most hazardous volcano‐tectonic regions in the world, the Christiana‐Santorini‐Kolumbo Volcanic Field (CSKVF) lies in the South Aegean Sea in an active rift zone. Previous studies identified an enigmatic voluminous mass‐transport deposit west and east of Santorini emplaced during the early evolution of the edifice. However, the distribution and volume as well as the nature and emplacement dynamics of this deposit remained unknown up to now. In this study, we use an extensive dataset of high‐resolution seismic profiles to unravel the distribution and internal architecture of this deposit. We show that it is located in all basins surrounding Santorini and has a bulk volume of up to 125 km3, thus representing the largest known volcanic island mass‐transport deposit in the entire Mediterranean Sea. We propose that the deposit is the result of a complex geohazard cascade that was initiated by an intensive rift pulse. This rifting event triggered a series of smaller precursory mass‐transport events before large‐scale sector collapses occurred on the northeastern flank of the extinct Christiana Volcano and on the southeastern flank of the nascent Santorini. This was followed by the emplacement of large‐scale secondary sediment failures on the slopes of Santorini, which transitioned into debris and turbidity flows that traveled far into the neighboring rift basins. Following this cascade, a distinct change in the volcanic behaviour of the CSKVF occurred, suggesting a close relationship between crustal extension, mass transport and volcanism. Cascading geohazards seem to be more common in the evolution of marine volcanic systems than previously appreciated. Wider awareness and a better understanding of cascading effects are crucial for more holistic hazard assessments., Schematic Reconstruction of the Santorini Mass‐Transport Cascade (SMTC): After a phase of volcanic quiescence (A), a rift pulse (B) triggered precursory mass‐wasting events (C), large‐scale sector collapses (D) and secondary sediment failures (E), which culminated in a change in the volcanic behaviour of the system (F)., Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
Published: 2022

7. Faire écrire des élèves dans une visée philosophique : scénario pédagogique et regard du psychologue

Author: Laboratoire Acte Maitre de conférences en psychologie l’université Clermont-Auvergne, Emmanuèle Auriac-Slusarczyk, Julie Pironom, Hélène Maire, Laboratoire lorrain de psychologie et neurosciences de la dynamique des comportements (2LPN), Université de Lorraine (UL), Analyse et Traitement Informatique de la Langue Française (ATILF), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Activité, Connaissance, Transmission, éducation (ACTé ), and Université Clermont Auvergne [2017-2020] (UCA [2017-2020])
Subjects: 4. Education, Dialogical self, Educational psychology, [SHS.PSY]Humanities and Social Sciences/Psychology, Community of inquiry, Philosophy for Children, writing, [SHS]Humanities and Social Sciences, Transversal (combinatorics), Pedagogy, Sociology, philosophy for children, Transfer of learning, Beneficial effects, educational psychology, Swarming (military), transfer of learning
Abstract: International audience; With the international swarming of the oral and collective P4C (Philosophy FOR Children) practice, its benefits for children’s development have been demonstrated in various and transversal fields. Are these beneficial effects transferable and quantifiable in individual writings of students aged 13 to 14 years? We will outline some directions to answer this question by presenting an original educational P4C tool, Philo & Carto, which is based on artworks as anchors to initiate the dialogical community of inquiry. The results from a first experiment will be presented and discussed, and pedagogical directions will be proposed.
Published: 2019

8. Multidisciplinary Study of the Impacts of the 1600 CE Huaynaputina Eruption and a Project for Geosites and Geo-touristic Attractions

Author: Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (Perú), Université Clermont Auvergne, Institute for Research and Development (Sri Lanka), Université de La Réunion, Université de Paris, Cerema. Climat & Territoires de Demain (France), Gouvernement de la République française, Agence Nationale de la Recherche (France), Mariño, Jersy, Cueva, Kevin, Thouret, Jean-Claude, Arias, Carla, Finizola, Antony, Antoine, Raphael, Delcher, Eric, Fauchard, Cyrille, Donnadieu, Franck, Labazuy, Philippe, Japura, Saida, Gusset, Rachel, Sánchez, Paola, Ramos, Domingo, Macedo, Luisa, Lazarte, Ivonne, Thouret, Liliane, Carpio, José del, Jaime, Lourdes, Saintenoy, Thibault, Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (Perú), Université Clermont Auvergne, Institute for Research and Development (Sri Lanka), Université de La Réunion, Université de Paris, Cerema. Climat & Territoires de Demain (France), Gouvernement de la République française, Agence Nationale de la Recherche (France), Mariño, Jersy, Cueva, Kevin, Thouret, Jean-Claude, Arias, Carla, Finizola, Antony, Antoine, Raphael, Delcher, Eric, Fauchard, Cyrille, Donnadieu, Franck, Labazuy, Philippe, Japura, Saida, Gusset, Rachel, Sánchez, Paola, Ramos, Domingo, Macedo, Luisa, Lazarte, Ivonne, Thouret, Liliane, Carpio, José del, Jaime, Lourdes, and Saintenoy, Thibault
Abstract: The Huaynaputina volcano, southern Peru, was the site of the largest historical eruption (VEI 6) in the Andes in 1600 CE, which occurred during the historic transition between the Inca Empire and the Viceroyalty of Peru. This event had severe consequences in the Central Andes and a global climatic impact. Spanish chronicles reported that at least 15 villages or settlements existed around the volcano, of which seven of them were totally destroyed by the eruption. Multidisciplinary studies have allowed us to identify and analyze the characteristics of six settlements buried by the eruption. Tephra fallout and pyroclastic current deposits (PDCs) had different impacts according to the settlement distance from the crater, the location with respect to the emplacement of PDCs along valleys, the geomorphological characteristics of the site, and type of constructions. Thus, Calicanto, Cojraque, and San Juan de Dios, located beneath the main axis of tephra dispersal lobe due west and/or on valley edges, were buried under several meters of pyroclastic deposits, while the villages of Estagagache, Chimpapampa, and Moro Moro, located to the S and SE of the lobe, were partially mantled by tephra. The 1600 CE Huaynaputina eruption created an important geological and cultural heritage, which has scientific, educational, and touristic values. Geo-touristic attractions are proposed based on identification, characterization, and qualitative evaluation of four groups totaling 17 geosites: volcanic geosites, volcanic-cultural geomorphosites, and hot springs. Seven geological roads along with seven viewpoints are proposed, which allow to value the most relevant landscapes, deposits and geological structures.
Published: 2021

9. Introduction

Author: Chloé Chaudet, Université Clermont Auvergne/CELIS, Stefania Cubeddu-Proux, Université Paris Nanterre/CSLF, Jean-Marc Moura, and Université Paris Nanterre/CSLF/IUF
Published: 2020

10. Mur Méditerranée de Louis-Philippe Dalembert : une réécriture transculturelle du topos de la traversée maritime, au prisme de la crise migratoire / Mur Méditerranée by Louis-Philippe Dalembert : A Transcultural Rewriting of the topos of the Sea Crossing, through the Prism of the Migratory Crisis

Author: Lila Lamrous, Université Clermont Auvergne, Lamrous, Lila, Lila Lamrous, Université Clermont Auvergne, and Lamrous, Lila
Abstract: Résumé : Mur Méditerranée de Louis-Philippe Dalembert est bâti sur le topos de la traversée maritime, interdite et périlleuse, effectuée par trois personnages féminins. Le topos place ce roman au cœur d’un ensemble de textes et requiert une lecture comparatiste. Il révèle alors une structure extrêmement dynamique, narrative et argumentative, qui accueille les échos des autres traversées collectives (exode du peuple juif, traite négrière, exil haïtien) offrant une variante au vagabondage de l’auteur haïtien. La réécriture transculturelle de ce motif permet de questionner la crise migratoire contemporaine tout en redéfinissant le sens de l’exil dans la mondialisation.Mots clés : exil et traversée Mtime ; topos littéraire ; réécriture transculturelle ; migration féminine ; frontières.Abstract : Mur Méditerranée by Louis-Philippe Dalembert is built on the topos of the forbidden and perilous maritime crossing, carried out by three female characters. The topos places this novel at the heart of a set of texts and requires comparative reading. It then reveals an extremely dynamic, narrative and argumentative structure, which receives the echoes of other collective crossings (exodus of the Jewish people, slave trade, Haitian exile) offering a variant to the “vagabondage” of the Haitian author. The transcultural rewriting of this motif allows us to question the contemporary migration crisis while redefining the meaning of exile.Keywords: exile and sea crossing; literary topos; transcultural rewriting; female migration; borders.
Published: 2020

11. Guide Méthodologique de Conservation Préventive

Author: Universidade do Minho, Direção Regional de Cultura do Norte, Centro de Computação Gráfica, Instituto Andaluz del Patrimonio Histórico (IAPH), Fundación Santa María la Real del Patrimonio Histórico, Universidad de Salamanca, Université Clermont Auvergne, and Université de Limoges
Subjects: Bienes Muebles, Guías, Bienes Inmuebles, Patrimonio cultural, Conservación preventiva, Patrimonio Histórico, Restauración de patrimonio
Published: 2019

12. Le dopage entre sport et génétique

Author: Colloque santé et droit de choisir, Faculté de droit, Université Clermont Auvergne, Clermont Ferrand (28 novembre 2019), Missa, Jean-Noël, Colloque santé et droit de choisir, Faculté de droit, Université Clermont Auvergne, Clermont Ferrand (28 novembre 2019), and Missa, Jean-Noël
Abstract: info:eu-repo/semantics/nonPublished
Published: 2019

13. Enjeux éthiques et philosophiques des applications non-thérapeutiques des technosciences biomédicales et principe de précaution

Author: Colloque Quelles limites pour les technosciences en santé ?(13 mars 2018: Ecole de Droit, Université Clermont Auvergne, Clermont Ferrand), Missa, Jean-Noël, Colloque Quelles limites pour les technosciences en santé ?(13 mars 2018: Ecole de Droit, Université Clermont Auvergne, Clermont Ferrand), and Missa, Jean-Noël
Abstract: info:eu-repo/semantics/nonPublished
Published: 2018

14. Secure holistic private local web server for smart applications

Author: Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors, Institut Superieur d'Informatique, de Modelisation et de leurs Applications, Université Clermont Auvergne, García Vidal, Jorge, Hou, Kun Mean, de Vaulx, Cristophe, Blasco Braso, Alex, Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors, Institut Superieur d'Informatique, de Modelisation et de leurs Applications, Université Clermont Auvergne, García Vidal, Jorge, Hou, Kun Mean, de Vaulx, Cristophe, and Blasco Braso, Alex
Abstract: The aim of the thesis is to develop a Secure Holistic Private local web server for smart applications (SHOP). SHOP builds an independent system with a compact security, placed in the fog-computing paradigm, which processes only a small amount of local data produced for trusted devices.
Published: 2017

15. Mobilier de Kerazan : mobilier français et/ou revendication d’identité locale?

Author: Gayet-Kerguiduff, Gwenn, UMR Ressources (UMR Ressources), École Nationale Supérieure d’Architecture de Clermont-Ferrand (ENSACF)-Université Clermont Auvergne (UCA), Centre d'Histoire 'Espaces et Cultures' (CHEC), and Université Clermont Auvergne (UCA)
Subjects: [SHS.ART]Humanities and Social Sciences/Art and art history
Abstract: International audience; Mobilier de Kerazan: mobilier français et/ou revendication d'identité locale ? Le bout du monde n'existe pas. C'est pourtant en pays bigouden (Finistère), terre d'accueil de nombreux manoirs, que des créations témoignant d'une forte identité locale nous amènent à voyager. Cette expression artistique si aisément reconnaissable lorsque nous évoquons « l'art populaire bigouden », est néanmoins souvent perçue comme un folklore.Par l'étude de l'inventaire après décès du seigneur Drouallen et des scellés apposés en son manoir de Kerazan en 1708, les archives inédites de l'Institut de France nous conduiront à questionner le mobilier domestique qui pouvait équiper les campagnes bigoudènes au XVIIIe siècle. Nous en mesurerons ensuite l'évolution. A Kerazan, aucun particularisme local ne peut être attesté avant l'implantation d'une famille de politiciens et collectionneurs: les Astor, arrivés en 1860.Quelles fins devons-nous admettre? La présentation de ce mobilier local pouvait-elle jouer un rôle dépassant celui du simple décor traditionnel ou du seul attachement identitaire?Cas isolé ou inclus dans un mouvement revendiquant une appartenance locale? La collection "bretonne" de Kerazan pourrait trouver un prolongement de ses réflexions par l'émergence du mobilier moderne breton porté par le mouvement Seiz Breur dans les années 1925.
Published: 2024

16. Complexity, algorithmic, and computational aspects of a dial-a-ride type problem

Author: Mourad Baïou, Rafael Colares, Hervé Kerivin, Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Department of Mathematical Sciences [Clemson], Clemson University, and COLARES, RAFAEL
Subjects: [INFO.INFO-CC]Computer Science [cs]/Computational Complexity [cs.CC], Combinatorial optimization, computational complexity, Information Systems and Management, [INFO.INFO-RO] Computer Science [cs]/Operations Research [cs.RO], General Computer Science, polyhedral study, [INFO.INFO-RO]Computer Science [cs]/Operations Research [cs.RO], Management Science and Operations Research, Industrial and Manufacturing Engineering, [MATH.MATH-CO] Mathematics [math]/Combinatorics [math.CO], Computer Science::Robotics, Modeling and Simulation, [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO], [INFO.INFO-CC] Computer Science [cs]/Computational Complexity [cs.CC], autonomous vehicles, dial-a-ride
Abstract: In dial-a-ride systems involving autonomous vehicles circulating along a circuit, a fleet of vehicles must serve clients who request rides between stations of the circuit such that the total number of pickup and drop-off operations is minimized. In this paper, we focus on a unitary variant where each client requests a single place in the vehicles and all the clients must be served within a single tour of the circuit. Such unitary variant induces a combinatorial optimization problem for which we introduce a nontrivial special case that is polynomially solvable when the capacity of each vehicle is at most 2 but it is NP-Hard otherwise. We also study the polytope associated with the solutions to this problem. We introduce new families of valid inequalities and give necessary and sufficient conditions under which they are facet-defining. Based on these inequalities, we devise an efficient branch-and-cut algorithm that outperforms the state-of-the-art commercial solvers.
Published: 2023

17. Dynamic scheduling of patients in emergency departments

Author: Thiago Alves de Queiroz, Manuel Iori, Arthur Kramer, Yong-Hong Kuo, Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia (UNIMORE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT), Institut Henri Fayol (FAYOL-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Génie mathématique et industriel (FAYOL-ENSMSE), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Institut Henri Fayol, Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Universidade Federal do Rio Grande do Norte [Natal] (UFRN), and The University of Hong Kong (HKU)
Subjects: [SDV.EE.SANT]Life Sciences [q-bio]/Ecology, environment/Health, Scheduling, Healthcare, Emergency department, Variable neighborhood search, Weighted tardiness, Information Systems and Management, General Computer Science, Management Science and Operations Research, Industrial and Manufacturing Engineering, [SPI]Engineering Sciences [physics], Modeling and Simulation, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Abstract: International audience; Emergency department overcrowding is a global issue that poses a great threat to patient health and safety. The timeliness of medical services provided to patients is crucial to emergency departments as it directly impacts the mortality and morbidity of urgent patients. However, critical resources (e.g., doctors and nurses) are typically constrained due to the limited financial budget. Thus, hospital administrators may need to investigate solutions to improve the efficiency of the emergency department. In this work, we study the dynamic problem of scheduling patients to doctors, aiming at minimizing the total weighted tardiness. We propose a simple reoptimization heuristic based on multiple queues of patients in accordance with their urgency levels, and then combine it with an effective variable neighborhood search. We also propose a scenario-based planning approach that uses sampled scenarios to anticipate future events and the variable neighborhood search to schedule patients. The methods are adapted to handle a problem variant where information on arrival time and urgency level of some patients can be received in advance by the emergency department. With a comprehensive computational study on two sets of realistic instances from Hong Kong SAR of China and Italy, we validate the performance of the proposed methods, evaluating the benefits of having more doctors and receiving early information.
Published: 2023

18. Neighbour sum distinguishing edge-weightings with local constraints

Author: Antoine Dailly, Elżbieta Sidorowicz, Instituto de Matematicas (UNAM), Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), Optimisation Combinatoire (G-SCOP_OC), Laboratoire des sciences pour la conception, l'optimisation et la production (G-SCOP), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and University of Zielona Góra
Subjects: FOS: Computer and information sciences, Discrete Mathematics (cs.DM), Applied Mathematics, [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO], FOS: Mathematics, Mathematics - Combinatorics, Discrete Mathematics and Combinatorics, Combinatorics (math.CO), [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], Computer Science - Discrete Mathematics
Abstract: A $k$-edge-weighting of $G$ is a mapping $\omega:E(G)\longrightarrow \{1,\ldots,k\}$. The edge-weighting of $G$ naturally induces a vertex-colouring $\sigma_{\omega}:V(G)\longrightarrow \mathbb{N}$ given by$\sigma_{\omega}(v)=\sum_{u\in N_G(v)}\omega(vu)$ for every $v\in V(G)$. The edge-weighting $\omega$ is neighbour sum distinguishing if it yields a proper vertex-colouring $\sigma_{\omega}$, \emph{i.e.}, $\sigma_{\omega}(u)\neq \sigma_{\omega}(v)$ for every edge $uv$ of $G$.We investigate a neighbour sum distinguishing edge-weighting with local constraints, namely, we assume that the set of edges incident to a vertex of large degree is not monochromatic. A graph is nice if it has no components isomorphic to $K_2$. We prove that every nice graph with maximum degree at most~5 admits a neighbour sum distinguishing $(\Delta(G)+2)$-edge-weighting such that all the vertices of degree at least~2 are incident with at least two edges of different weights. Furthermore, we prove that every nice graph admits a neighbour sum distinguishing $7$-edge-weighting such that all the vertices of degree at least~6 are incident with at least two edges of different weights. Finally, we show that nice bipartite graphs admit a neighbour sum distinguishing $6$-edge-weighting such that all the vertices of degree at least~2 are incident with at least two edges of different weights.
Published: 2023

19. One-atmosphere high-temperature CO–CO2–SO2 gas-mixing furnace: design, operation, and applications

Author: Shashank Prabha-Mohan, Kenneth T. Koga, Antoine Mathieu, Franck Pointud, Diego F. Narvaez, Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Magma - UMR7327, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Departamento de Geología, Escuela Politécnica Nacional, ANR-10-LABX-0006,CLERVOLC,Clermont-Ferrand centre for research on volcanism(2010), and ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016)
Subjects: Applied Mathematics, General Mathematics, [SDU.STU.PE]Sciences of the Universe [physics]/Earth Sciences/Petrography
Abstract: In this paper, we present a new design for a 1 atm gas-mixing furnace using the gas mixture CO–CO2–SO2. This furnace can simulate disequilibrium processes such as magmatic and volcanic degassing. Here, we present the technical aspects of the design. The furnace can sustain temperatures of up to 1650 ∘C and has a hot zone that spans 200 mm vertically, where the hotspot is determined to be ∼ 32 mm below the midpoint of the furnace enclosure. The four mass flow controllers are individually calibrated and accurate to within 0.8 % of the specified value. The fO2 is accurately reproduced in the furnace within ±0.002 log units, as calibrated by the Fe–FeO reaction across the iron–wüstite (IW) buffer at 1300 ∘C. The furnace can reliably simulate dynamic conditions, where the fO2 can be modulated at a maximum rate of 2.0 log units min−1 by varying the gas mixture. A delay of 40 s is observed to attain the fO2 calculated from the gas mixture, at the hotspot. A series of safety measures to protect the user from exposure to the toxic gases are detailed. In our experiments, the furnace is used to determine sulfur isotope fractionation factors among melt, sulfide, and the gas phase, within a magmatic context, using either crystals of olivine or silica glass tubes. The furnace has the potential to investigate various other dynamic high-temperature reactions occurring on Earth.
Published: 2023

20. Diurnal symptoms of sleepiness and dysfunction predict future suicidal ideation in a French cohort of outpatients (FACE-DR) with treatment resistant depression: A 1-year prospective study about sleep markers

Author: Maruani, Julia, Molière, Fanny, Godin, Ophelia, Yrondi, Antoine, Bennabi, Djamila, Richieri, Raphaelle, El-Hage, Wissan, Allauze, Etienne, Anguill, Loic, Bouvard, Alexandra, Camus, Vincent, Dorey, Jean-Michel, Etain, Bruno, Fond, Guillaume, Genty, Jean-Baptiste, Haffen, Emmanuel, Holtzmann, Jérôme, Horn, Mathilde, Kazour, François, Nguon, Anne-Sophie, Petrucci, Jean, Rey, Romain, Stephan, Florian, Vaiva, Guillaume, Walter, Michel, Lejoyeux, Michel, Leboyer, Marion, Llorca, Pierre-Michel, Courtet, Philippe, Aouizerate, Bruno, Geoffroy, Pierre, Fondation FondaMental [Créteil], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Neuropsychiatrie : recherche épidémiologique et clinique (PSNREC), Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Institut Mondor de Recherche Biomédicale (IMRB), Institut National de la Santé et de la Recherche Médicale (INSERM)-IFR10-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Toulouse Neuro Imaging Center (ToNIC), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Centre d'Investigation Clinique de Besançon (Inserm CIC 1431), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Etablissement français du sang [Bourgogne-Franche-Comté] (EFS BFC)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut FRESNEL (FRESNEL), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), UMR 1253 IBrain Imagerie & Cerveau Equipe 1 : 'Psychiatrie Neuro-Fonctionnelle' (PNF), Imagerie et cerveau (iBrain - Inserm U1253 - UNIV Tours ), Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Nutrition et Neurobiologie intégrée (NutriNeuro), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Ecole nationale supérieure de chimie, biologie et physique-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre hospitalier Charles Perrens [Bordeaux], Centre de recherche en neurosciences de Lyon - Lyon Neuroscience Research Center (CRNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier le Vinatier [Bron], Optimisation thérapeutique en Neuropsychopharmacologie (OPTeN (UMR_S_1144 / U1144)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre d'études et de recherche sur les services de santé et la qualité de vie (CEReSS), Aix Marseille Université (AMU), [GIN] Grenoble Institut des Neurosciences (GIN), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), CHU Lille, Université de Tours (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Hopital de Bohars - CHRU Brest (CHU - BREST ), Soins Primaires, Santé Publique, Registre des cancers de Bretagne Occidentale (EA7479 SPURBO), Université de Brest (UBO)-Centre Hospitalier Régional Universitaire de Brest (CHRU Brest)-Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO), GHU Paris Psychiatrie et Neurosciences, Maladies neurodéveloppementales et neurovasculaires (NeuroDiderot (UMR_S_1141 / U1141)), and FondaMental Advanced Centers of Expertise in Resistant Depression (FACE-DR) Collaborators
Subjects: MESH: Humans, MESH: Suicidal Ideation, MESH: Sleepiness, MESH: Sleep, Excessive daytime sleepiness, Circadian, MESH: Depressive Disorder, Major, Daytime dysfunction, MESH: Prospective Studies, MESH: Outpatients, MESH: Depressive Disorder, Treatment-Resistant, Psychiatry and Mental health, Clinical Psychology, MESH: Risk Factors, Suicidal ideation, [SDV.MHEP.PSM]Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, Treatment-resistant depression, Sleep
Abstract: International audience; Background: Patients suffering from treatment-resistant depression (TRD) are at risk of suicide. Sleep and circadian rhythm alterations are widely recognized as core symptoms of major depressive disorder and are associated with suicidal ideation. Thus, sleep and circadian rhythm alterations may be targeted to prevent suicide.Methods: Patients were recruited from a prospective cohort of the French network of TRD expert centers. Mood, sleep and circadian rhythms were assessed at baseline; suicidal risk was assessed both at baseline and during a one-year follow-up with standardized subjective questionnaires.Results: Excessive daytime sleepiness (adjusted odds ratio aOR = 1.7(1-3.3), p = 0.04) and daytime dysfunction (aOR = 1.81(1.16-2.81), p = 0.0085) increased the risk of suicidal thoughts over the one-year follow-up period in patients with TRD after adjustment on age, gender, depression, trauma, anxiety, impulsivity, current daily tobacco smoking and body mass index. Hypnotics intake is associated with a reduced risk of suicidal ideation at one-year follow-up after the same adjustments (OR = 0.73(0.56-0.95), p = 0.019). Other associations between sleep quality or circadian rhythms and suicidal ideations at either baseline or one year did not remain significant in multivariate analyses after the same adjustments.Limitations: Sleep assessments were based on self-reported questionnaires rather than objective measures.Conclusions: Daytime sleepiness and dysfunction are predictors of suicidal ideations, whereas hypnotics intake is associated with a reduced risk of suicidal ideations. Diurnal symptoms of sleep disturbances are therefore red flags to target for preventing suicide in depressed patients, and hypnotics seem efficient in preventing suicide for patients with TRD.
Published: 2023

21. J. Hardwig, Dépendance épistémique (traduction)

Author: Galinon, Henri, Georgel, Samuel, Laboratoire Philosophies et Rationalités (PHIER), Université Clermont Auvergne [2017-2020] (UCA [2017-2020]), and Université Clermont Auvergne (UCA)
Subjects: [SHS.PHIL]Humanities and Social Sciences/Philosophy, [SHS]Humanities and Social Sciences
Abstract: John Hardwig, “Epistemic Dependence”, The Journal of Philosophy, vol. 82, No. 7 (Juillet 1985), 3335-349; Je crois toutes sortes de choses dont je ne possède aucune preuve. Bien que je puisse imaginer ce que je devrais faire pour obtenir les preuves qui appuieraient chacune de mes croyances, je ne me crois pas capable de le faire pour toutes mes croyances. Je crois trop, trop de preuves sont requises (la plupart d'entre elles accessibles seulement après une longue formation spécialisée), l'intellect est trop petit et la vie, trop courte. Que dire, en tant qu'épistémologues, à propos de toutes ces croyances ?
Published: 2024

22. Migration of surface-associated microbial communities in spaceflight habitats

Author: Daniele Marra, Thodoris Karapantsios, Sergio Caserta, Eleonora Secchi, Malgorzata Holynska, Simon Labarthe, Bastien Polizzi, Sandra Ortega, Margaritis Kostoglou, Christophe Lasseur, Ioannis Karapanagiotis, Sigolene Lecuyer, Arnaud Bridier, Marie-Françoise Noirot-Gros, Romain Briandet, 'Federico II' University of Naples Medical School, Aristotle University of Thessaloniki, Department of Civil, Environmental and Geomatic Engineering [ETH Zürich] (D-BAUG), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), ESA - ESTEC (Netherlands), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Mathématiques de Besançon (UMR 6623) (LMB), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Fougères - ANSES, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (ANSES), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), MICrobiologie de l'ALImentation au Service de la Santé (MICALIS), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Elsevier
Subjects: Space flight, Biofilm, Microgravity, Transcriptomic, Adaptation, Evolution, Control, [SDV]Life Sciences [q-bio], Cell Biology, Molecular Biology, Applied Microbiology and Biotechnology, Microbiology
Abstract: Astronauts are spending longer periods locked up in ships or stations for scientific and exploration spatial missions. The International Space Station (ISS) has been inhabited continuously for more than 20 years and the duration of space stays by crews could lengthen with the objectives of human presence on the moon and Mars. If the environment of these space habitats is designed for the comfort of astronauts, it is also conducive to other forms of life such as embarked microorganisms. The latter, most often associated with surfaces in the form of biofilm, have been implicated in significant degradation of the functionality of pieces of equipment in space habitats. The most recent research suggests that microgravity could increase the persistence, resistance and virulence of pathogenic microorganisms detected in these communities, endangering the health of astronauts and potentially jeopardizing long-duration manned missions. In this review, we describe the mechanisms and dynamics of installation and propagation of these microbial communities associated with surfaces (spatial migration), as well as long-term processes of adaptation and evolution in these extreme environments (phenotypic and genetic migration), with special reference to human health. We also discuss the means of control envisaged to allow a lasting cohabitation between these vibrant microscopic passengers and the astronauts., Biofilm, 5, ISSN:2590-2075
Published: 2023

23. Average Cloud Droplet Size and Composition: Good Assumptions for Predicting Oxidants in the Atmospheric Aqueous Phase?

Author: Barbara Ervens, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and ANR-17-MPGA-0013,MOBIDIC,Modeling biologically-driven processes in clouds(2017)
Subjects: [CHIM]Chemical Sciences, Physical and Theoretical Chemistry
Abstract: Chemical models that describe the atmospheric multiphase (gas/aqueous) system often include detailed kinetic and mechanistic schemes describing chemical reactions in both phases. The present study explores the importance of properties including the chemical composition of droplet populations, such as pH value and iron present in only a few droplets, as well as droplet size and their distribution. It is found that the assumption of evenly distributed iron in all cloud droplets leads to an underestimate by up to 1 order of magnitude of OH concentrations in the aqueous phase, whereas the predicted iron(II)/iron(total) ratio is overestimated by up to a factor of 2. While the sulfate mass formed in cloud droplets is not largely affected by any of the assumptions, the predicted secondary organic aerosol mass varies by an order of magnitude. This sensitivity study reveals that multiphase chemistry model studies should focus not only on chemical mechanism development but also on careful considerations of droplet properties to comprehensively describe the atmospheric multiphase chemical system.
Published: 2023

24. Transferts de migrants, sécurité alimentaire et variabilité climatique : le cas du Burkina Faso

Author: Tapsoba, Tebkieta Alexandra, Combes Motel, Pascale, Combes, Jean-Louis, Université Joseph Ki-Zerbo [Ouagadougou] (UJZK), Institut Supérieur des Sciences de la Population (ISSP), Laboratoire d'Économie d'Orleans [2022-...] (LEO), Université d'Orléans (UO)-Université de Tours (UT)-Université Clermont Auvergne (UCA), and Université Clermont Auvergne (UCA)
Subjects: SPEI, Remittances, [QFIN]Quantitative Finance [q-fin], Burkina Faso, Sécurité alimentaire, Food security, Transferts de migrants, General Economics, Econometrics and Finance
Abstract: International audience; This paper assesses the impact of remittances and climate variability on households' food security in Burkina Faso. It relies on an original database from the World Bank survey on migration and remittances conducted in 2009. A principal component analysis allows elaborating of a food security index. The Standardised Precipitation and Evapotranspiration Index (SPEI) makes it possible to characterise the climate situation throughout the country relative to long-term records. The econometric results corroborate the harmful effect of deteriorating climatic conditions on households' food security. Remittances, however, enhance food security and dampen the negative impact of the SPEI on food security. These findings are robust to a potential endogeneity bias using distance from migrants' households to railway lines and migrant education as instruments.; Cet article évalue l’impact des transferts des migrants et de la variabilité climatiquesur la sécurité alimentaire des ménages au Burkina Faso. Il s’appuie surune base de données originale construite à partir de l’enquête 2009 de la Banquemondiale sur les migrations et les transferts. Une analyse en composantes principalespermet d’élaborer un indice de sécurité alimentaire. L’indice standardisé deprécipitation et d’évapotranspiration (SPEI) caractérise la situation climatique dansles différenes régions. Les résultats économétriques corroborent l’effet négatif dela détérioration des conditions climatiques sur la sécurité alimentaire des ménages.En revanche, les transferts de fonds renforcent la sécurité alimentaire et atténuentl’effet négatif du SPEI sur la sécurité alimentaire. Ces résultats sont robustes à unbiais d’endogénéité potentiel des transferts en utilisant la distance au chemin defer des ménages et l’éducation des migrants comme instruments.
Published: 2023

25. Lunar eclipses illuminate timing and climate impact of medieval volcanism

Author: Guillet, Sébastien, Corona, Christophe, Oppenheimer, Clive, Lavigne, Franck, Khodri, Myriam, Ludlow, Francis, Sigl, Michael, Toohey, Matthew, Atkins, Paul S, Yang, Zhen, Muranaka, Tomoko, Horikawa, Nobuko, Stoffel, Markus, Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland (University of Geneva), Laboratoire de Géographie Physique et Environnementale (GEOLAB), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), University of Cambridge [UK] (CAM), Laboratoire de géographie physique : Environnements Quaternaires et Actuels (LGP), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Trinity Centre for Environmental Humanities, Department of History, School of Histories & Humanities, Trinity College Dublin, Dublin, Ireland (Trinity College Dublin), Universität Bern [Bern] (UNIBE), Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan, Canada. (University of Saskatchewan), Department of Asian Languages & Literature, University of Washington, Seattle, WA, USA (University of Washington), Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland. (University of Geneva), Department of Asian Languages & Literature, University of Washington, Seattle, WA, USA. (University of Washington), ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), European Project: 820047,THERA, European Project: 951649,4-OCEANS, Guillet, Sébastien [0000-0002-0602-0518], Corona, Christophe [0000-0002-7645-6157], Oppenheimer, Clive [0000-0003-4506-7260], Khodri, Myriam [0000-0003-1941-1646], Ludlow, Francis [0000-0003-0008-0314], Toohey, Matthew [0000-0002-7070-405X], Atkins, Paul S. [0000-0002-4048-5036], Stoffel, Markus [0000-0003-0816-1303], Apollo - University of Cambridge Repository, and Atkins, Paul S [0000-0002-4048-5036]
Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, 13 Climate Action, Multidisciplinary, 530 Physics, 520 Astronomy, article, 704/106/694/1108, 37 Earth Sciences, 3705 Geology, 3709 Physical Geography and Environmental Geoscience, 530 Physik, [SHS.HISPHILSO]Humanities and Social Sciences/History, Philosophy and Sociology of Sciences, 540 Chemistry, 704/106/413, 550 Earth sciences & geology, 900 History
Abstract: Acknowledgements: S.G., C.C., M.K. and M. Stoffel were supported by the Swiss National Science Foundation Sinergia Project CALDERA (CRSII5_183571). S.G. acknowledges A. Harrak (Department of Near and Middle Eastern Civilizations, University of Toronto), F. Espenak (NASA Goddard Space Flight Center), F. Hierink (Institute for Environmental Sciences, University of Geneva) and P. Souyri (Department of East Asian Studies, University of Geneva) for providing advice on the manuscript. F. Lavigne was supported by Institut Universitaire de France (IUF, Academic Institute of France). M.K. received funding from the EUR IPSL – Climate Graduate School project, managed by the ANR within the “Investissements d’avenir” programme under reference ANR-11-IDEX-0004-17-EURE-0006. F. Ludlow received funding from an Irish Research Council Starting Laureate Award (CLICAB project, IRCLA/2017/303). F. Ludlow and Z.Y. also received funding from a European Research Council (ERC) Synergy Grant (4-OCEANS; grant agreement no. 951649) under the European Union’s Horizon 2020 research and innovation programme. M. Sigl received funding from the ERC under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 820047). This paper is a product of the Volcanic Impacts on Climate and Society (VICS) working group., Explosive volcanism is a key contributor to climate variability on interannual to centennial timescales1. Understanding the far-field societal impacts of eruption-forced climatic changes requires firm event chronologies and reliable estimates of both the burden and altitude (that is, tropospheric versus stratospheric) of volcanic sulfate aerosol2, 3. However, despite progress in ice-core dating, uncertainties remain in these key factors4. This particularly hinders investigation of the role of large, temporally clustered eruptions during the High Medieval Period (HMP, 1100–1300 ce), which have been implicated in the transition from the warm Medieval Climate Anomaly to the Little Ice Age5. Here we shed new light on explosive volcanism during the HMP, drawing on analysis of contemporary reports of total lunar eclipses, from which we derive a time series of stratospheric turbidity. By combining this new record with aerosol model simulations and tree-ring-based climate proxies, we refine the estimated dates of five notable eruptions and associate each with stratospheric aerosol veils. Five further eruptions, including one responsible for high sulfur deposition over Greenland circa 1182 ce, affected only the troposphere and had muted climatic consequences. Our findings offer support for further investigation of the decadal-scale to centennial-scale climate response to volcanic eruptions.
Published: 2023

26. Impact of the Force Field on the Calculation of Density and Surface Tension of Epoxy–Resins

Author: Mathilde Orselly, Cécile Richard, Julien Devémy, Agathe Bouvet-Marchand, Alain Dequidt, Cédric Loubat, Patrice Malfreyt, Specific Polymers (SP), Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: [PHYS]Physics [physics], Surface tension, Polymers, Organic polymers, Materials Chemistry, Liquids, Molecular mechanics, Physical and Theoretical Chemistry, Surfaces, Coatings and Films
Abstract: International audience; The molecular simulation of interfacial systems is a matter of debate because of the choice of many input parameters that can affect significantly the performance of the force field of reproducing the surface tension and the coexisting densities. After developing a robust methodology for the calculation of the surface tension on a Lennard-Jones fluid, we apply it with different force fields to calculate the density and surface tension of pure constituents of epoxy resins. By using the model that best reproduces the experimental density and surface tension, we investigate the impact of composition in mass fraction on uncured epoxy resins and the effects of degree of cross-linking on cured resins.
Published: 2023

27. Modelling physical processes in higher plants using leaf replicas for space applications

Author: Joanna Kuzma, Lucie Poulet, Jean-Pierre Fontaine, Claude-Gilles Dussap, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Centre National d'Études Spatiales [Toulouse] (CNES), and GDR 2799 Micropesanteur Fondamentale & Appliquée
Subjects: Mechanics of Materials, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, General Materials Science
Abstract: International audience; À l’avenir, la culture de plantes supérieures sera un élément clé des systèmes de support de vie biorégénératifs. Cela nécessitera une compréhension approfondie des phénomènes qui jouent un rôle important au cœur du métabolisme des plantes et de leur interaction avec l’environnement. Les plantes sont des organismes complexes qui doivent être étudiés à l’aide de répliques de feuilles. Ceci permet l’étude des phénomènes physiques à la surface des feuilles, sans interactions biochimiques ou biologiques, ni variabilité génétique. Pour évaluer l’influence de la gravité, il est nécessaire de développer des modèles mécanistes précis du comportement des plantes dans l’espace. Cet article de synthèse présente l’état de l’art des répliques foliaires et des phénomènes concomitants, pour une application spatiale.
Published: 2023

28. Que nous apprend la littérature récente sur la « nature et les causes de la richesse des nations » ?

Author: Combes Motel, Pascale, Combes, Jean-Louis, Laboratoire d'Économie d'Orleans [2022-...] (LEO), Université d'Orléans (UO)-Université de Tours (UT)-Université Clermont Auvergne (UCA), and Université Clermont Auvergne (UCA)
Subjects: Economics and Econometrics, [QFIN]Quantitative Finance [q-fin], JEL: O - Economic Development, Innovation, Technological Change, and Growth/O.O5 - Economywide Country Studies/O.O5.O57 - Comparative Studies of Countries, JEL: N - Economic History/N.N1 - Macroeconomics and Monetary Economics • Industrial Structure • Growth • Fluctuations/N.N1.N10 - General, International, or Comparative, Development, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, JEL: O - Economic Development, Innovation, Technological Change, and Growth/O.O1 - Economic Development/O.O1.O10 - General, JEL: P - Economic Systems/P.P5 - Comparative Economic Systems/P.P5.P51 - Comparative Analysis of Economic Systems, JEL: O - Economic Development, Innovation, Technological Change, and Growth/O.O4 - Economic Growth and Aggregate Productivity/O.O4.O43 - Institutions and Growth
Abstract: International audience; This literature review covers recent works dealing with the ultimate causes of economic development. The article first considers the driving role of the rules of the social game. Then the focus shifts to the role of historical circumstances. Finally, we seek to understand how geography can influence development paths. These studies are multidisciplinary and use new databases. The results should not imply that there is a cultural, historical or geographical determinism. That is, historical contingencies and economic policy decisions can foster lasting changes in development trajectories.
Published: 2023

29. Al-Mg and U-Pb chronological records of Erg Chech 002 ungrouped achondrite meteorite

Author: Philip M. Reger, Yvonne Roebbert, Wladimir Neumann, Abdelmouhcine Gannoun, Marcel Regelous, Winfried H. Schwarz, Thomas Ludwig, Mario Trieloff, Stefan Weyer, Audrey Bouvier, Department of Earth Sciences, Institute of Earth and Space Exploration, University of Western Ontario, Institut für Mineralogie [Hannover], Leibniz Universität Hannover=Leibniz University Hannover, Institut für Geowissenschaften [Heidelberg], Universität Heidelberg [Heidelberg] = Heidelberg University, Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), GeoZentrum Nordbayern, Friedrich-Alexander-Universität Erlangen-Nürnberg, Bayerisches Geoinstitut (BGI), and Universität Bayreuth
Subjects: Al-Mg chronology, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, Geochemistry and Petrology, U-Pb chronology, Early Solar System, Planetary differentiation, achondrite
Abstract: Achondrite meteorites are remnants of the earliest planetary differentiation processes in the Solar System. They have been used to anchor short-lived radiochronometers to absolute ages determined from long-lived radiochronometers. More specifically, when comparing the isotopic systematics of the shortlived 26Al-26Mg chronometer anchored to absolute U-corrected Pb-Pb ages, inferences about the distribution of 26Al (half-life of 717 000 yr) in the protoplanetary disk can be evaluated. The ungrouped achondrite Erg Chech (EC) 002 has a distinct mineralogy and more evolved elemental composition compared to basaltic achondrites. In situ and solution 26Al-26Mg chronometry and 53Mn-53Cr chronometry suggest that EC 002 formed within 0.7 to 2.2 Ma after the formation of Ca-Al-rich inclusions (CAIs), making it the oldest known sample of igneous crust in the Solar System (Barrat et al., 2021; Anand et al., 2022; Zhu et al., 2022; Fang et al., 2022). Here we present the U-corrected Pb-Pb age and 26Al-26Mg age obtained by MC-ICPMS solution analysis of the same mineral separate samples of EC 002. In addition, six merrillite grains were analyzed by in-situ SIMS to determine their Pb-Pb individual ages. The U isotope composition of EC 002 exhibits internal heterogeneities between leached pyroxene (238U/235U = 137.766 ± 0.027) and the bulk rock (238U/235U = 137.8190 ± 0.0074). The Pb isotope composition of progressively leached pyroxenes are characterized by radiogenic 206Pb/204Pb ratios (ranging from 41 to 23487). Using the U isotope composition of the leached pyroxenes, the resulting age of the 207Pb/206Pb-204Pb/206Pb isochron is 4565.87 ± 0.30 Ma (2r). The weighted mean of the Pb-Pb ages of seven SIMS analyses of merrillites are 4564.3 ± 5.2 Ma (2r). These similar ages (within uncertainty) indicate rapid cooling and the absence of significant thermal events after 4559 Ma on the parent body of EC 002. The 26Al-26Mg isochron through a bulk rock, pyroxene, fine-rained and four plagioclase fractions defines an initial 26Al/27Al ratio of [8.89 ± 0.79] 106 corresponding to a formation age of 1.83 ± 0.12 Ma after CAIs ([5.23 ± 0.13] 105; Jacobsen et al., 2008). The initial 26Al abundance is consistent with previous MC-ICP-MS 26Al-26Mg reported systematics for EC 002 (Fang et al., 2022), but 0.46 ± 0.13 Myr older than the in situ SIMS 26Al-26Mg age previously reported by Barrat et al. (2021).When anchored to the absolute Pb-Pb age of CV3 CAIs (4567.30 ± 0.16 Ma; Connelly et al., 2012), the Al-Mg model age of EC 002 is 4565.47 ± 0.20 Ma, slightly younger than its U-corrected Pb-Pb age.
Published: 2023

30. High-resolution intra-operative data for the generation of probabilistic stimulation maps in DBS of Vim for ET

Author: Vogel, Dorian, Wårdell, Karin, Coste, Jerome, Lemaire, Jean-Jacques, Hemm, Simone, Institute for Medical and Analytical Technologies, School of Life Sciences (IMAT), University of Applied Sciences and Arts Northwestern Switzerland (HES-SO), Department of Biomedical Engineering [Linköping], Linköping University (LIU), Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), CHU Clermont-Ferrand, Institute for Medical and Analytical Technologies, School of Life Sciences (IMA), University of Applied Sciences and Arts Northwestern Switzerland (FHNW), and European Society for Stereotactic and Functional Neurosurgery (ESSFN)
Subjects: Normalization, Vim, PSM, Anatomical template, DBS, [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC], [SDV.IB]Life Sciences [q-bio]/Bioengineering, Stimulation Atlas, ET, Group analysis
Abstract: International audience; Group analysis consists of using an anatomical space as reference, transferring data such as contact location and extend of stimulation from each patient and relating them to the symptomatic effect. Analyzing past implantations should support understanding the mechanisms of action of DBS and predicting outcome in new patients. Most studies place their focus on the chronic stimulation situation, with the lead at a fixed position in the brain. This results in few data samples per patient, requiring large cohorts. On the other hand, intra-operative tests are an attractive source of data. The aim of this study was to develop a fully automated pipeline for analyzing the results of intra-operative stimulation tests of ventro-intermediate nucleus of the thalamus (Vim) for ET using high-fidelity data and exemplify the pipeline on a group of patients. Data from 19 DBS patients (6 ET, 16 PD) from the University Hospital Clermont-Ferrand (France) was used to create an MR template including patient-specific labels, resulting in a probabilistic definition of 57 deep brain structures. Data from the 6 ET patients in the group was used to create a probabilistic stimulation map (PSM). Tremor reduction was assessed during intra-operative stimulation tests using a wrist-worn acceleration sensor. These scores were combined with patient-specific electric field (EF) simulations into a 4D volume. The latter was first summarized into a weighted mean map (average of the improvement weighted by the EF norm). Voxels with low occurrence of fields (10% of max) and number of patients (2 of 6) were excluded. Secondly, the significance of the relationship between tremor reduction and electric field was estimated with Linear mixed models using patient as a random effect. Voxels in the weighted mean map with |p|>0.05 were excluded. A fully automated, reproducible workflow was established to normalize and analyze intra-operative data and allowed to identify regions with significant relationship between electric field and tremor suppression. In the future more patients will be integrated to conduct statistical verification of the identified regions.
Published: 2023

31. Recovering Headerless Frames in LR-FHSS

Author: Fraire, Juan Andrés, Guitton, Alexandre, Iova, Oana, ALGorithmes et Optimisation pour Réseaux Autonomes (AGORA), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-CITI Centre of Innovation in Telecommunications and Integration of services (CITI), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), Saarland University [Saarbrücken], AlGorithmes et Optimisation pour Réseaux Autonomes (AGORA), CITI Centre of Innovation in Telecommunications and Integration of services (CITI), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Inria Lyon, Institut National de Recherche en Informatique et en Automatique (Inria), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Université Clermont Auvergne (UCA), ANR-22-CE25-0014,STEREO,Convergence IoT - Satellite(2022), ANR-21-CE25-0002,DOLL,DOLL: Communication DOwnLink efficace pour une capacité LoRaWAN augmenté(2021), and European Project: 101008233 ,MISSION
Subjects: Networking and Internet Architecture (cs.NI), FOS: Computer and information sciences, Computer Science - Networking and Internet Architecture, ILP, satellite IoT, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], headerless frames, Frame recovery, LR-FHSS, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation
Abstract: International audience; Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) is a recent modulation designed for communications from low-power ground end-devices to Low-Earth Orbit (LEO) satellites. To decode a frame, an LR-FHSS gateway must receive at least one header replica and a large proportion of payload fragments. However, LR-FHSS headers will likely be lost when there are many concurrent transmissions. In this paper, we motivate the header loss problem with an analytical model, propose a linear programming model to extract headerless frames and design a cost-effective sliding window heuristic. Simulation results show that our approach exhibits near-optimal headerless detection and extraction results while ensuring a low computational cost. The proposed method is, therefore, suitable for future LR-FHSS gateways located onboard resource-constrained LEO satellites.
Published: 2023

32. AEM-derived watersheds in crystalline domain under volcanic cover

Author: Ciolczyk, Damien, Reninger, Pierre-Alexandre, Bertin, Clotilde, Bernard, Julien, Merle, Olivier, Raingeard, Anne, Martelet, Guillaume, Belle, Pierre, Gailler, Lydie, Labazuy, Philippe, Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Danone Waters, and Australian Society of Exploration Geophysics
Subjects: Volcanism, AEM, [SDU]Sciences of the Universe [physics], [SDE]Environmental Sciences, Electromagnetics, Hydrogeology, Chaîne des Puys
Abstract: International audience; In the Chaîne des Puys (CdP, France), volcanic edifices and their emissions cover the weathered conductive low-permeable basement and fill the paleo-valleys, hiding the groundwater flows. The 3D delineation of such buried watersheds can be achieved studying variations of conductivity related to primary geological contrasts as well as secondary weathering-induced contrasts.We used AEM data to delineate the geometry of the undercover volcanism-basement interface in the northern part of the CdP and derived watersheds. Despite the highly resistive volcanic cover, our processing allowed structural imaging up to a depth of investigation of 330 meters in average.The processing and inversion of AEM data highlights the interface between a strongly resistant volcanic cover (~104-105 Ω.m) and a decametric conductive weathered horizon at the top of the basement (30-300 Ω.m).We picked the weathered horizon of the basement on several resistivity profiles, to build an elevation model of its top. The newly derived watersheds noticeably differ from the ones proposed in literature.
Published: 2023

33. The Holocene history of grapevine (Vitis vinifera) and viticulture in France retraced from a large-scale archaeobotanical dataset

Author: Bouby, Laurent, Chabal, Lucie, Bonhomme, Vincent, Baly, Isabelle, Battentier, Janet, Ben Makhad, Sammy, Bonnaire, Emmanuelle, Cabanis, Manon, Callou, Cécile, Cenzon-Salvayre, Carine, Coubray, Sylvie, Daoulas, Geneviève, Delhon, Claire, Derreumaux, Marie, Dhesse, Priscille, Dietsch Sellami, Marie-France, Dufraisse, Alexa, Durand, Aline, Durand, Frédérique, Figueiral, Isabel, Flottes, Laurie, Gillot, Isabelle, Hallavant, Charlotte, Henry, Auréade, Jeanty, Angèle, Jedrusiak, Florian, Liottier, Léonor, Marinval, Philippe, Martin, Lucie, Neveu, Elsa, Paradis, Laure, Pinaud-Querrac'H, Rachël, Poirier, Philippe, Pradat, Bénédicte, Preiss, Sidonie, Rovira, Núria, Ros, Jérôme, Salavert, Aurélie, Schaal, Caroline, Thiébault, Stéphanie, Tillier, Margaux, Toulemonde, Françoise, Vaschalde, Christophe, Wiethold, Julian, Ruas, Marie-Pierre, Matterne, Véronique, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Bases de données sur la Biodiversité, Ecologie, Environnement et Sociétés (BBEES), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Archéozoologie, archéobotanique : sociétés, pratiques et environnements (AASPE), Institut national de recherches archéologiques préventives (Inrap), Laboratoire de Géographie Physique et Environnementale (GEOLAB), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Culture et Environnements, Préhistoire, Antiquité, Moyen-Age (CEPAM), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH), Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC)-Nantes Université - UFR Histoire, Histoire de l'Art et Archéologie (Nantes Univ - UFR HHAA), Nantes Université - pôle Humanités, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Hadès - Bureau d'Investigations Archéologiques, Archéologies et Sciences de l'Antiquité (ArScAn), Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris 8 Vincennes-Saint-Denis (UP8)-Université Paris Nanterre (UPN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Archéologie des Sociétés Méditerranéennes (ASM), Université Paul-Valéry - Montpellier 3 (UPVM)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC), Environnements, Dynamiques et Territoires de Montagne (EDYTEM), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Université de Genève = University of Geneva (UNIGE), University College of London [London] (UCL), Institut Royal des Sciences Naturelles de Belgique (IRSNB), Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Trajectoires - UMR 8215, Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Archéologie Médiévale et Moderne en Méditerranée (LA3M), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Archéologie, Terre, Histoire, Sociétés [Dijon] (ARTeHiS), Ministère de la Culture et de la Communication (MCC)-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), This research was funded by French National Agency, ANR-16-CE27-0013 'Vignes et vins en France du Néolithique au Moyen Âge. Approche intégrée en archéosciences' and ANR-22-CE27-0026 'Modelling interactions between climate change and agriculture in the ancient west'. It also received support from the CNRS GDR 3644 Bioarcheodat, Opération 4 «Recherches collaboratives et thématiques»., ANR-16-CE27-0013,VINICULTURE,Vignes et vins en France du Néolithique au Moyen Age. Approche intégrée en archéosciences(2016), and ANR-22-CE27-0026,MICA,Modéliser les Interactions entre changement Climatique et Agriculture en Occident ancien(2022)
Subjects: Domestication, Diffusion, Biogeography, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, Charcoal, Paleontology, Seed/fruit, Human-plant interaction, Archaeobotany, Oceanography, Ecology, Evolution, Behavior and Systematics, Earth-Surface Processes, Diet
Abstract: Grapevine and wine have deeply shaped the landscapes, economy and cultures of Europe and the Mediterranean. In France, it is considered that viticulture started in the south via contacts with Mediterranean populations (Greeks, Etruscans, Phoenicians), during the second half of the 1st millennium BCE, and spread further with the Romans. Wild grapevines were nevertheless present in various areas of the country all through the Holocene. No archaeological or historical source allows us to follow the history of grapevine and viticulture over the entire Holocene period and over the whole territory.In this paper we investigate the potential of archaeological plant macroremains (seed/fruits and wood) to trace the history of the vine on a large scale. We have assembled the largest possible database of published and unpublished archaeobotanical data, comprising 4449 site-phases for seed and fruits and 1356 site-phases for wood remains. In spite of taphonomic discrepancies and imbalances in the datasets, the different types of macroremains and modes of preservation produce consistent patterns. They provide the first comprehensive picture of the spread of grapevine, fluctuations in the economic role of viticulture and grape uses over time, although some periods and regions are less documented.Grapevine remains are regularly recorded from the Mesolithic to the Iron Age in most regions showing that human societies were already familiar with the wild plant and its fruits, especially in the Mediterranean. In this region, Vitis remains become considerably more frequent and numerous during the Iron Age, from around 500 BCE onwards, testifying to the rapid and strong implantation of viticulture. Grapevine macroremains confirm that the spread of viticulture outside the Mediterranean area occurred mainly during the Roman period. However, this expansion was limited and mainly focused on the South. The main expansion into the temperate zone took place during the Middle Ages. However, the more detailed fluctuations of viticulture, particularly in relation to climate oscillations are still difficult to follow. Pip remains are mainly associated with urban sites. This is a consequence of the actual consumption of grapes and may be evidence of a viticulture centered around urban areas.
Published: 2023

34. The effects of digital elevation model resolution on the PyFLOWGO thermorheological lava flow model

Author: Flynn, Ian, Chevrel, Magdalena Oryaëlle, Crown, David, Ramsey, Michael, Department of Geology and Environmental Science [Pittsburgh], University of Pittsburgh (PITT), Pennsylvania Commonwealth System of Higher Education (PCSHE)-Pennsylvania Commonwealth System of Higher Education (PCSHE), Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Observatoire Volcanologique du Piton de la Fournaise (OVPF), Institut de Physique du Globe de Paris (IPG Paris), Planetary Science Institute [Tucson] (PSI), ANR-10-LABX-0006,CLERVOLC,Clermont-Ferrand centre for research on volcanism(2010), and ANR-16-IDEX-0001,CAP 20-25,CAP 20-25(2016)
Subjects: FLOWGO, Topography, Tolbachik, Planetary science, DEM, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, Volcanology, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Volcanic eruption, Sensitivity analysis
Abstract: co-auteur étranger; International audience; Topography is a fundamental factor influencing the emplacement of lava flows. We assess the impact of topographic resolution on the thermorheological PyFLOWGO model, specifically with digital elevation model (DEM) resolutions commonly available for Earth and other planetary bodies where flow modeling is relevant. We examined PyFLOWGO output parameters (e.g., channel length, core temperature, and flow velocity) to assess model sensitivity to topography in order to document model uncertainties and optimize future application. This study uses rheologic and topographic data from the Tolbachik, Russia 2012–2013 eruption as model constraints. Using moderate to lower resolution topographic data overestimates the channelized flow length by up to 35% due to differences in the distribution of slopes topographic variability at different resolutions and resulting effects on the modeled lava velocity down channel. Determining the impact of topography on thermorheological lava flow models such as PyFLOWGO is important to correctly interpret the results for channelized flows.
Published: 2023

35. Crossed clinical features between eating disorders and types of bipolar disorder: Results from the FondaMental Advanced Centers of Expertise - Bipolar Disorder cohort

Author: Flaudias, Valentin, Samalin, Ludovic, Godin, Ophélia, Gard, Sébastien, Brousse, Georges, Loftus, Joséphine, Aubin, Valérie, Belzeaux, Raoul, Dubertret, Caroline, Le Strat, Yann, Mazer, Nicolas, de Prémorel, Alix, Roux, Paul, Polosan, Mircea, Schwitzer, Thomas, Aouizerate, Bruno, Llorca, Pierre Michel, Biseul, Isabelle, Etain, B., Moirand, Rémi, Olié, Émilie, Haffen, Emmanuel, Leboyer, Marion, Courtet, Philippe, Icick, Romain, Guillaume, Sébastien, Laboratoire de Psychologie des Pays de la Loire (LPPL), Université d'Angers (UA)-Nantes Université - UFR Lettres et Langages (Nantes Univ - UFR LL), Nantes Université - pôle Humanités, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Fondation FondaMental [Créteil], Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Nutrition et Neurobiologie intégrée (NutriNeuro), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Ecole nationale supérieure de chimie, biologie et physique-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre Hospitalier Princesse Grace, Institut de Neurosciences de la Timone (INT), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Hôpital Louis Mourier - AP-HP [Colombes], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, [GIN] Grenoble Institut des Neurosciences (GIN), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Grenoble Alpes (UGA), Centre Psychothérapique de Nancy [Laxou] (CPN), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Cohortes épidémiologiques en population (CONSTANCES), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay-Université Paris Cité (UPCité), Centre Hospitalier le Vinatier [Bron], Hôpital Lapeyronie [Montpellier] (CHU), Service de chirurgie pédiatrique [CHU Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Hôpital Henri Mondor, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Institut de Génomique Fonctionnelle (IGF), Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Fondation FondaMental, FFM, Agence Nationale de la Recherche, ANR: ANR-10- COHO-10-01, ANR-11-IDEX-0004-02, Institut National de la Santé et de la Recherche Médicale, Inserm, This research was supported by the FondaMental Foundation , French National Institute of Health and Medical Research (INSERM), Public Hospitals of Paris (AP-HP), and by the French National Research Agency (ANR)'s Investment for the Future program (ref. nos ANR-11-IDEX-0004-02 and ANR-10- COHO-10-01 ). The funding sources had no role in the study design, data collection, analysis, preparation of the manuscript, or decision to submit the manuscript for publication., ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), and ANR-10-COHO-0010,Psy-COH,FondaMental-Cohortes(2010)
Subjects: Psychiatry and Mental health, Clinical Psychology, Bipolar disorder, [SDV.MHEP.PSM]Life Sciences [q-bio]/Human health and pathology/Psychiatrics and mental health, Types, Eating disorders, Comorbidity
Abstract: International audience; Background: Eating disorders (EDs) are liable to alter the disease course of bipolar disorder (BD). We explored the crossed clinical features between EDs and BD, particularly as a function of BD type (BD1 vs. BD2). Methods: 2929 outpatients attending FondaMental Advanced Centers of Expertise were assessed for BD and lifetime EDs with a semi-structured interview, and their sociodemographic, dimensional and clinical data were collected according to a standardized procedure. For each ED type, bivariate analyses were used to investigate associations between these variables and the type of BD type followed by multinomial regressions with the variables associated with EDs and BDs after Bonferroni correction. Results: Comorbid EDs were diagnosed in 478 (16.4 %) cases, and were more prevalent in patients with BD2 than in those with BD1 (20.6 % vs. 12.4 %, p < 0.001). Regression models showed no difference according to the subtype of bipolar disorder on the characteristics of patients with anorexia nervosa (AN), bulimia nervosa (BN) or binge eating disorder (BED). After multiple adjustments, the factors differentiating BD patients with versus without ED were primarily age, gender, body mass index, more affective lability and comorbidity with anxiety disorders. BD patients with BED also scored higher regarding childhood trauma. BD patients with AN also showed higher risk of past suicide attempts than those with BED. Conclusions: In a large sample of patients with BD, we found a high prevalence of lifetime EDs, especially for the BD2 type. EDs were associated with several severity indicators, but not with BD type-specific characteristics. This should prompt clinicians to carefully screen patients with BD for EDs, regardless of BD and ED types.
Published: 2023

36. Docosahexaenoic acid and etanercept could reduce functional and metabolic alterations during collagen-induced arthritis in rats without any synergistic effect

Author: Léger, Thibault, Brun, Aurélien, Lanchais, Kassandra, Rigaudière, Jean-Paul, Briat, Arnaud, Guitton, Yann, Marchand, Fabien, Tournadre, Anne, Capel, Frédéric, Unité de Nutrition Humaine (UNH), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA), Imagerie Moléculaire et Stratégies Théranostiques (IMoST), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Clermont Auvergne (UCA), Laboratoire d'étude des Résidus et Contaminants dans les Aliments (LABERCA), École nationale vétérinaire, agroalimentaire et de l'alimentation Nantes-Atlantique (ONIRIS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Neuro-Dol (Neuro-Dol), Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 (CIIL), Institut Pasteur de Lille, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Centre National de la Recherche Scientifique (CNRS), Université Clermont Auvergne (UCA), Centre de Recherche en Nutrition Humaine d'Auvergne (CRNH d'Auvergne), and Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Subjects: [SDV]Life Sciences [q-bio]
Abstract: International audience
Published: 2023

37. Secure protocols for cumulative reward maximization in stochastic multi-armed bandits

Author: Ciucanu, Radu, Lafourcade, Pascal, Lombard-Platet, Marius, Soare, Marta, Laboratoire d'Informatique de Grenoble (LIG), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Département d'informatique - ENS Paris (DI-ENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS), ANR-19-P3IA-0003,MIAI,MIAI @ Grenoble Alpes(2019), European Project: H2020,INODE, and European Project: 952215,TAILOR(2020)
Subjects: [INFO.INFO-CR]Computer Science [cs]/Cryptography and Security [cs.CR], [INFO.INFO-DB]Computer Science [cs]/Databases [cs.DB], [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], Computer Networks and Communications, Hardware and Architecture, Safety, Risk, Reliability and Quality, Software, [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract: International audience; We consider the problem of cumulative reward maximization in multi-armed bandits. We address the security concerns that occur when data and computations are outsourced to an honest-but-curious cloud i.e., that executes tasks dutifully, but tries to gain as much information as possible. We consider situations where data used in bandit algorithms is sensitive and has to be protected e.g., commercial or personal data. We rely on cryptographic schemes and propose UCB - MS, a secure multi-party protocol based on the UCB algorithm. We prove that UCB - MS computes the same cumulative reward as UCB while satisfying desirable security properties. In particular, cloud nodes cannot learn the cumulative reward or the sum of rewards for more than one arm. Moreover, by analyzing messages exchanged among cloud nodes, an external observer cannot learn the cumulative reward or the sum of rewards produced by some arm. We show that the overhead due to cryptographic primitives is linear in the size of the input. Our implementation confirms the linear-time behavior and the practical feasibility of our protocol, on both synthetic and real-world data.
Published: 2023

38. Accelerating OCaml Programs on FPGA

Author: Loïc Sylvestre, Emmanuel Chailloux, Jocelyn Sérot, Sylvestre, Loïc, Algorithmes, Programmes et Résolution (APR), LIP6, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Image, système de perception, robotique (ISPR), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne)
Subjects: Hardware acceleration, High-level parallel programming, OCaml, Compiling, [INFO]Computer Science [cs], [INFO] Computer Science [cs], Virtual machine, FPGA, Software, Information Systems, Theoretical Computer Science
Abstract: International audience; This paper aims to exploit the massive parallelism of Field-Programmable Gate Arrays (FPGAs) by programming them in OCaml, a multiparadigm and statically typed language. It first presents O2B, an implementation of the OCaml virtual machine using a softcore processor to run the entire OCaml language on an FPGA. It then introduces Macle, a language to express, in ML-style, hardware-accelerated user-defined functions, implemented as gates and registers on the same FPGA. Macle allows to implement pure computations and compose them in parallel. It also supports processing of dynamic data structures such as arrays, matrices and trees allocated by the OCaml runtime in the memory of the softcore processor. Macle functions can then be called, as hardware accelerators, by OCaml programs executed by O2B. This combination of Macle and OCaml codes in a single source program enables to easily prototype FPGA applications mixing numeric and symbolic computations.
Published: 2023

39. Evaluating the scalability of reconfigurable manufacturing systems at the design phase

Author: Audrey Cerqueus, Xavier Delorme, Département Automatique, Productique et Informatique (IMT Atlantique - DAPI), IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Modélisation, Optimisation et DEcision pour la Logistique, l'Industrie et les Services (LS2N - équipe MODELIS), Laboratoire des Sciences du Numérique de Nantes (LS2N), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Nantes Université (Nantes Univ), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Département Génie mathématique et industriel (FAYOL-ENSMSE), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Institut Henri Fayol, Institut Henri Fayol (FAYOL-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT), and ANR-21-CE10-0019,RECONFIDURABLE,Conception et pilotage de systèmes de production reconfigurables et durables(2021)
Subjects: Combinatorial analysis, Strategy and Management, Scalability, Line Balancing, [INFO]Computer Science [cs], Multi-objective indicator, Management Science and Operations Research, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Industrial and Manufacturing Engineering, Reconfigurable manufacturing systems
Abstract: International audience; To face market volatility, reconfigurable manufacturing systems (RMS) aim to efficiently and cost-effectively react to changes. We focus on one characteristic of RMS: the scalability (ability to adapt the volume of throughput). In the literature, the only few indicators for scalability are not always formally defined and usually only consider a partial view of scalability. Moreover, most of them are actually more suited for the configuration planning rather than for the design. However, the design of the RMS has a high impact on its scalability. We propose the first combinatorial definition of this problem and a new measure to fully assess the scalability of a system at the design phase. This measure, based on a multi-objective approach, can assess the scalability of single-product manufacturing systems, analysing all configurations that it can implement. We present numerical experiments to compare this indicator with a state-of-the-art scalability indicator and with some classical production line design indicators, and we show that future research should focus on scalability as a specific criterion to optimise during the design of an RMS. In addition, the results obtained allow us to infer some managerial insights on the best levers to use when performing a reconfiguration for scalability purpose.
Published: 2023

40. The East-Mayotte new volcano in the Comoros Archipelago: structure and timing of magmatic phases inferred from seismic reflection data

Author: Charles Masquelet, Sylvie Leroy, Matthias Delescluse, Nicolas Chamot-Rooke, Isabelle Thinon, Anne Lemoine, Dieter Franke, Louise Watremez, Philippe Werner, Fabien Paquet, Carole Berthod, Victor Cabiativa Pico, Daniel Sauter, Institut des Sciences de la Terre de Paris (iSTeP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de géologie de l'ENS (LGENS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG), Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Nord]), Institut Terre Environnement Strasbourg (ITES), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Magmas et Volcans (LMV-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Magmas et Volcans (LMV), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement et la société-Université Clermont Auvergne (UCA)-Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Ecole et Observatoire des Sciences de la Terre (EOST), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and ANR-19-CE31-0018,COYOTES,COmores & maYotte : vOlcanisme, TEctonique et Sismicité(2019)
Subjects: Volcanism, Comoros Archipelago, [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy, Mayotte, [SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/Volcanology, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, General Earth and Planetary Sciences, Fani Maore volcano, FaniMaore volcano, Seismic reflection, General Environmental Science
Abstract: A multichannel seismic reflection profile acquired during the SISMAORE cruise (2021) provides the first in-depth image of the submarine volcanic edifice, named Fani Maore, that formed 50 km east of Mayotte Island (Comoros Archipelago) in 2018–2019. This new edifice sits on a ∼140 m thick sedimentary layer, which is above a major, volcanic layer up to ∼1 km thick and extends over 120 km along the profile. This volcanic unit is made of several distinct seismic facies that indicate successive volcanic phases. We interpret this volcanic layer as witnessing the main phase of construction of the Mayotte Island volcanic edifice. A ∼2.2–2.5 km thick sedimentary unit is present between this volcanic layer and the top of the crust. A complex magmatic feeder system is observed within this unit, composed of saucer-shape sills and seal bypass systems. The deepest tip of this volcanic layer lies below the top-Oligocene seismic horizon, indicating that the volcanism ofMayotte Island likely began around 26.5Ma, earlier than previously assumed., Un profil de sismique réflexion multitrace acquis lors de la campagne océanographique SISMAORE (2021) apporte la première image en profondeur du volcan sous-marin Fani Maore, qui s’est formé à 50 km à l’est de l’île de Mayotte (archipel des Comores) en 2018–2019. Ce nouvel édifice repose sur une première couche sédimentaire d’environ 140 m d’épaisseur au-dessus d’une couche volcanique majeure épaisse de 1 km et qui s’étend sur 120 km le long du profil. Cette dernière unité volcanique est constituée de plusieurs faciès sismiques distincts qui indiquent des phases volcaniques successives. Nous interprétons cette couche volcanique comme le témoin de la phase principale de construction de l’édifice volcanique de l’île de Mayotte. Une couverture sédimentaire de 2.2–2.5 km d’épaisseur est présente entre cette couche volcanique et le toit de la croûte. On y observe de nombreux sills en forme de soucoupe ainsi que des zones à faciès de remontées de fluides, dessinant un système d’alimentation magmatique complexe sous la principale couche volcanique. L’extrémité la plus profonde de cette couche volcanique se place en dessous de l’horizon sismique de l’Oligocène supérieur et indique que le volcanisme de l’île de Mayotte a probablement commencé vers 26.5 Ma, plus tôt que ce qui était supposé auparavant.
Published: 2023

41. Is dieting a risk for higher weight gain in normal-weight individual? A systematic review and meta-analysis

Author: Léna Pélissier, Sarah Bagot, Jennifer Lynn Miles-Chan, Bruno Pereira, Yves Boirie, Martine Duclos, Abdul Dulloo, Laurie Isacco, David Thivel, Laboratoire des Adaptations Métaboliques à l'Exercice en Conditions Physiologiques et Pathologiques (AME2P), Université Clermont Auvergne (UCA)-UFR Sciences et Techniques des Activités Physiques et Sportives - Clermont-Auvergne (UFR STAPS - UCA), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions, Université Blaise Pascal - Clermont-Ferrand 2 (UBP), University of Auckland [Auckland], Biostat Unit DRCI, CHU Clermont-Ferrand, Unité de Nutrition Humaine (UNH), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA), Université de Fribourg = University of Fribourg (UNIFR), Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-UFR Sciences et Techniques des Activités Physiques et Sportives - Clermont-Auvergne (UFR STAPS - UCA), and Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])
Subjects: Weight loss, Nutrition and Dietetics, [SDV]Life Sciences [q-bio], [SDV.MHEP.PHY]Life Sciences [q-bio]/Human health and pathology/Tissues and Organs [q-bio.TO], Medicine (miscellaneous), Lean, Obesity, [SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolism, Food restriction, Weight gain
Abstract: While there is an increasing prevalence of dieting in the overall population, weight loss (WL) practices could be a risk factor for weight gain (WG) in normal-weight (NW) individuals. The aim of the present work was to systematically review all the studies implicating diet restriction and body weight (BW) evolution in NW people. The literature search was registered in PROSPERO (CRD42021281442) and was performed in three databases from April 2021 to June 2022 for articles involving healthy NW adults. From a total of 1487 records initially identified, eighteen were selected in the systematic review. Of the eight dieting interventional studies, only one found a higher BW after weight recovery, but 75 % of them highlighted metabolic adaptations in response to WL favouring weight regain and persisting during/after BW recovery. Eight of the ten observational studies showed a relationship between dieting and major later WG, while the meta-analysis of observational studies results indicated that ‘dieters’ have a higher BW than ‘non-dieters’. However, considering the high methodological heterogeneity and the publication bias of the studies, this result should be taken with caution. Moreover, the term ‘diet’ was poorly described, and we observed a large heterogeneity of the methods used to assess dieting status. Present results suggest that dieting could be a major risk factor for WG in the long term in NW individuals. There is, however, a real need for prospective randomised controlled studies, specifically assessing the relationship between WL induced by diet and subsequent weight in this population.
Published: 2023

42. State of the art on the hydraulic properties of pervious concrete

Author: Seifeddine, Khaled, Amziane, Sofiane, Toussaint, Evelyne, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI]Engineering Sciences [physics], [SPI.GCIV.GCN]Engineering Sciences [physics]/Civil Engineering/Génie civil nucléaire, Civil and Structural Engineering
Abstract: International audience
Published: 2023

43. Opportunities and Challenges of LoRa 2.4 GHz

Author: HOCHET DEREVIANCKINE, Gwendoline, Guitton, Alexandre, Iova, Oana, Ning, Baozhu, Valois, Fabrice, AlGorithmes et Optimisation pour Réseaux Autonomes (AGORA), CITI Centre of Innovation in Telecommunications and Integration of services (CITI), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Inria Lyon, Institut National de Recherche en Informatique et en Automatique (Inria), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Semtech (Meylan, France), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)
Subjects: protocol design, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], protocol comparison, Computer Networks and Communications, LoRa 2.4 GHz, Electrical and Electronic Engineering, LoRaWAN, Computer Science Applications
Abstract: International audience; Internet of Things (IoT) technologies are increasingly used in our daily life. Among these technologies, LoRa is widely used for low power IoT data collection in wide areas. LoRa typically operates in sub-GHz bands which are region-specific, and thus has limited worldwide applications. The version of LoRa developed for the 2.4 GHz ISM band has spurred recent interest in the scientific community, as it enables the use of worldwide frequency channels. However, it requires the coexistence with numerous concurrent technologies within this 2.4 GHz band, and an evolution of the MAC and networking protocols for utilizing LoRaWAN connectivity. In this paper, we make the first experimental comparison between LoRa sub-GHz and LoRa 2.4 GHz in both indoor and outdoor scenarios. We show that LoRa 2.4 GHz can have a communication range of more than 2 km outdoor, and it can achieve a packet delivery rate of at least 0.98 for a distance of up to 39 meters indoor with the presence of obstacles. We also make an extensive discussion on the researches challenges that need to be addressed in order to fully take advantage of this new technology.
Published: 2023

44. Reactive sputtering onto an ionic liquid, a new synthesis route for bismuth-based nanoparticles

Author: Sara Ibrahim, Vitalios Ntomprougkidis, Mathias Goutte, Guillaume Monier, Mounir Traïkia, Jean-Michel Andanson, Pierre Bonnet, Angelique Bousquet, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Institut Pascal (IP), and Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne)
Subjects: Nanoparticle, Reactive sputtering, Oxyfluorides, General Materials Science, [CHIM.MATE]Chemical Sciences/Material chemistry, Photocatalysis
Abstract: International audience; Metallic bismuth and Bi-oxyfluoride nanoparticles (NPs) are successfully synthesized by non-reactive and reactive sputtering of a Bi target onto 1-butyl-3-methylimidazolium bis(trifluoro-methylsulfonyl)imide ([BMIM][TFSI]) ionic liquid (IL). Non-reactive sputtering is realized in pure Ar plasma, where isotropic, well crystallized and dispersed Bi NPs of 3-7 nm are obtained. The diameter and the size distribution of these NPs do not significantly vary with the power, gas pressure, and sputtering time; but these sputtering parameters seem to influence the NPs concentration. Then, the introduction of O2 and CF4 gases in addition to Ar enables the reaction of radicals from plasma with Bi clusters at the liquid top surface to form Bi-oxyfluoride NPs of 3-12 nm in diameter with a photocatalytic activity. Hence, the reactive sputtering onto an IL is an efficient, original and promising method for synthesizing Bi-based compound NPs. Finally, we propose a mechanism based on reactions of species from plasma at the IL surface to explain the formation of Bi-compounds by reactive sputtering.
Published: 2023

45. Altérations amygdaliennes dans la maladie d’Alzheimer : quelles répercussions ?

Author: Bourgin, Jessica, Silvert, Laetitia, Hot, Pascal, Laboratoire de Psychologie et NeuroCognition (LPNC ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Clermont Auvergne (UCA), Laboratoire de Psychologie Sociale et Cognitive (LAPSCO), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)
Subjects: Behavioral Neuroscience, Neuropsychology and Physiological Psychology, [SCCO.NEUR]Cognitive science/Neuroscience, Cognitive Neuroscience, [SCCO.PSYC]Cognitive science/Psychology
Published: 2023

46. 2022 French Report Card on Physical Activity and Sedentary Behaviors in Children and Youth: From Continuous Alarming Conclusions to Encouraging Initiatives

Author: Alicia Fillon, Jeremy Vanhelst, Pauline Genin, Benjamin Larras, Michéle Tardieu, Marion Porcherie, Maxime Luiggi, Salomé Aubert, Charlotte Verdot, Olivier Rey, Lena Lhuisset, Julien E. Bois, Guillaume Y. Millet, Martine Duclos, David Thivel, Centre de Recherche en Nutrition Humaine Auvergne [CHU Clermont-Ferrand] (CRNH A), Direction de la recherche clinique et de l’innovation [CHU Clermont-Ferrand] (DRCI), CHU Clermont-Ferrand-CHU Clermont-Ferrand, Observatoire national de l’activité physique et de la sédentarité (ONAPS), Laboratoire des Adaptations Métaboliques à l'Exercice en Conditions Physiologiques et Pathologiques (AME2P), Université Clermont Auvergne (UCA)-UFR Sciences et Techniques des Activités Physiques et Sportives - Clermont-Auvergne (UFR STAPS - UCA), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre de Recherches sur l'Action Politique en Europe (ARENES), Université de Rennes (UR)-Institut d'Études Politiques [IEP] - Rennes-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Centre National de la Recherche Scientifique (CNRS), École des Hautes Études en Santé Publique [EHESP] (EHESP), Apprentissage, Didactique, Evaluation, Formation (ADEF), Aix Marseille Université (AMU), Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour (UPPA), Environnement, Santé/Stic (E2S), Université de Bourgogne (UB), Mouvement, Équilibre, Performance, Santé (MEPS), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM ), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])
Subjects: [SDV]Life Sciences [q-bio], active transportation, Orthopedics and Sports Medicine, adolescents, physical activity promotion
Abstract: Background: Scientific evidence and public health reports keep highlighting the continuous and alarming worldwide progression of physical inactivity and sedentary behaviors in children and adolescents. The present paper summarizes findings from the 2022 French Report Card (RC) on physical activity for children and youth and compares them to the 2016, 2018, and 2020 RCs. Methods: The 2022 edition of the French RC follows the standardized methodology established by the Active Healthy Kids Global Matrix. Ten physical activity indicators have been evaluated and graded based on the best available evidence coming from national surveys, peer-reviewed literature, government and nongovernment reports, and online information. The evaluation was also performed in children and adolescents with disabilities. Indicators were graded from A (high level of evidence) to F (very low level of evidence) or INC for incomplete. Results: The evaluated indicators received the following grades: overall physical activity: D−; organized sport participation and physical activity: C; active play: F; active transportation: C; sedentary behaviors: D−; family and peers: D; physical fitness: C; school: C−; community and the built environment: F; government: B. Conclusions: While this 2022 French RC shows progression for 7 out of the 10 indicators considered, it also underlines the continuous need for actions at the local, regional, and national levels to develop better surveillance systems and favor a long-term improvement of youth movement behaviors.
Published: 2023

47. Greener peptoid synthesis in additive-free water-based media

Author: Nassirine Soumanou, Dorthe Lybye, Thomas Hjelmgaard, Sophie Faure, Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), and Rockwool International A/S
Subjects: [CHIM]Chemical Sciences, Environmental Chemistry, Pollution
Abstract: International audience; Highly efficient procedures were developed for greener synthesis of sequence-defined peptoid oligomers. The optimised chain elongation procedure is carried out in water-based media in a unique N to C direction, and comprises a convenient one-pot two-step deprotection/coupling sequence for the installation of each new peptoid residue. The process is so efficient that the only work-up procedure required after each intermediate coupling step is aqueous extraction. In stark contrast to the traditional procedures, the only solvents apart from water used during the synthesis and workup processes are EtOH, MeOH or EtOAc. Furthermore, there is no requirement for specialised water-soluble protecting groups or inclusion of additives apart from the reagents in the reaction media.
Published: 2023

48. Multi-objective collaborative assembly line design problem with the optimisation of ergonomics and economics

Author: Mohammed-Amine Abdous, Xavier Delorme, Daria Battini, Sandrine Berger-Douce, Centre for Digital Systems (CERI SN - IMT Nord Europe), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Nord Europe), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Institut Mines-Télécom [Paris] (IMT), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Henri Fayol (FAYOL-ENSMSE), Département Génie mathématique et industriel (FAYOL-ENSMSE), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Institut Henri Fayol, Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Université de Padoue, COnception de l'ACTIon en Situation (COACTIS), Université Lumière - Lyon 2 (UL2)-Université Jean Monnet - Saint-Étienne (UJM), and Département Management responsable et innovation (FAYOL-ENSMSE)
Subjects: ergonomics, Strategy and Management, multi-objective optimisation, Assembly line balancing problem, assembly line design problem, Industry 4.0, Industry 5.0, Management Science and Operations Research, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Industrial and Manufacturing Engineering
Abstract: International audience; Manufacturing systems are socio-technical systems, with explicit interactions between humans and technologies in shared workspaces. These shared workspaces could also be called hybrid collaborative manufacturing systems, which involve workers as well as technological equipment and combine the benefits of human workers and new Industry 4.0 technologies, such systems are particularly useful in a context requiring flexibility and adaptability. Furthermore, the new Industry 5.0 approach has the objective to shift toward more human-centric and resilient manufacturing systems. The key problems to solve in the design of collaborative manufacturing systems are the combinatorial assembly line balancing problem and the equipment selection problem. An efficient and sustainable line requires a cost-effective choice of equipment while improving the ergonomics and the safety of workers. Both decisions of balancing workload and the assignment of equipment impact the ergonomics of a collaborative system and present conflicting criteria. To this end, we propose a multi-objective approach, the objectives are the optimisation of the investment costs and the ergonomics with a fatigue and recovery criterion. We propose to linearise the fatigue and recovery to formulate a new Mixed Integer Linear Programming formulation. We developed an exact multi-objective solving algorithm based on the ϵ-constraint to obtain the trade-off between these objectives. We conducted numerical experiments with different instances from the literature with promising results for instances with up to 45 operations. Finally, we discuss insightful managerial conclusions and future research perspectives.
Published: 2022

49. Interdisciplinary strategy to assess the impact of meteorological variables on the biochemical composition of the rain and the dynamics of a small eutrophic lake under rain forcing

Author: Fanny Noirmain, Jean-Luc Baray, Frédéric Tridon, Philippe Cacault, Hermine Billard, Guillaume Voyard, Joël Van Baelen, Delphine Latour, Service d'Ingénierie Moléculaire pour la Santé (ex SIMOPRO) (SIMoS), Médicaments et Technologies pour la Santé (MTS), Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de Météorologie Physique (LaMP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Observatoire de Physique du Globe de Clermont-Ferrand (OPGC), Laboratoire Microorganismes : Génome et Environnement (LMGE), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), University of California [Berkeley] (UC Berkeley), University of California (UC), Université Clermont Auvergne (UCA), Institut de Chimie de Clermont-Ferrand (ICCF), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Laboratoire de l'Atmosphère et des Cyclones (LACy), and Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Météo-France
Subjects: impact of meteorological variables, [SDE]Environmental Sciences, biochemical composition of rain, dynamics of a small eutrophic lake under rain forcing, Ecology, Evolution, Behavior and Systematics, Earth-Surface Processes
Abstract: We present an interdisciplinary investigation of the links between the macro and microphysical properties of rain, the biochemical composition of rain, meteorological parameters, and their impacts on the phytoplankton dynamics of a mountain lake. In order to document this interdisciplinary scientific question, Lake Aydat in the French Massif Central mountains was fitted with a set of high-resolution atmospheric radars, a disdrometer, and a precipitation collector in 2020. In parallel, the lake was monitored via sensors and water sampling. To illustrate the potential of this novel experimental setup, we present a case study of a rain event that occurred in September 2020 and during which, three contrasting sub-periods were identified based on the type of rain (convective or stratiform). Using our high-temporal resolution monitoring, we show that the origin of the air mass mainly influences the chemical composition of the rain, which depends on the rain type. In contrast, the photosynthetic cell concentration in the rain is mainly influenced by meteorological variables, predominantly below-cloud scavenging. The very low concentrations of photosynthetic cells found in rain events cannot directly impact the lake's phytoplankton abundance. In contrast, the rain rate directly impacted the lake's thermal stratification during the convective event. The response of the phytoplankton depends on the genus and, interestingly, three cyanobacteria, Microcystis, Coelomoron, and Merismopedia, showed a systematic response to rain events with a sudden decrease in abundance at the lake surface immediately after rain events. In contrast, the abundance of green algae (Elakatothrix), picocyanobacteria (Synechocystis and Synechococcus), and diatoms (Asterionella and Melosira) gradually increased following the rain events, but with a lower intensity compared to the cyanobacteria species. These different phytoplankton responses to the same rainfall event could play a key role in phytoplankton dynamics in the temperate zone. Our results highlight the importance of high-frequency and time resolution monitoring of both atmosphere and lake to better understand the adaptive strategies of cyanobacteria following rain events.
Published: 2022

50. Proofs and Certificates for Max-SAT

Author: Matthieu Py, Mohamed Sami Cherif, Djamal Habet, COntraintes, ALgorithmes et Applications (COALA), Laboratoire d'Informatique et Systèmes (LIS), Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA)
Subjects: Artificial Intelligence, [INFO]Computer Science [cs]
Abstract: International audience; Current Max-SAT solvers are able to efficiently compute the optimal value of an input instance but they do not provide any certificate of its validity. In this paper, we present a tool, called MS-Builder, which generates certificates for the Max-SAT problem in the particular form of a sequence of equivalence-preserving transformations. To generate a certificate, MS-Builder iteratively calls a SAT oracle to get a SAT resolution refutation which is handled and adapted into a sound refutation for Max-SAT. In particular, we prove that the size of the computed Max-SAT refutation is linear with respect to the size of the initial refutation if it is semi-read-once, tree-like regular, tree-like or semi-tree-like. Additionally, we propose an extendable tool, called MS-Checker, able to verify the validity of any Max-SAT certificate using Max-SAT inference rules. Both tools are evaluated on the unweighted and weighted benchmark instances of the 2020 Max-SAT Evaluation.
Published: 2022

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Region

Database

Publisher

44,172 results on '"Université Clermont Auvergne"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources