Philippe JEAN-PIERRE

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• Type de publi. : Communication dans un congrès
• Date de publi. : 02/09/2020
• Auteurs : Marie-Charlotte GuillouEmilie VergneSophie AligonPhilippe GrappinDavid RousseauE. JametFrançoise MontrichardSébastien AubourgJean-Pierre Renou
• Organismes : Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences Institut de Recherche en Horticulture et Semences

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• Type de publi. : Communication dans un congrès
• Date de publi. : 01/09/2020
• Auteurs : Jay Ram LamichhaneJean-Noël AubertotJulie ConstantinElana DayoubPhilippe DebaekePierre MauryCéline SchovingCarolyne Durr
• Organismes : AGroécologie, Innovations, teRritoires AGroécologie, Innovations, teRritoires AGroécologie, Innovations, teRritoires AGroécologie, Innovations, teRritoires École nationale supérieure agronomique de Toulouse AGroécologie, Innovations, teRritoires AGroécologie, Innovations, teRritoires École nationale supérieure agronomique de Toulouse AGroécologie, Innovations, teRritoires Institut de Recherche en Horticulture et Semences

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Résumé : Ongoing climate change has been reported to have far-reaching impact on agriculture worldwide owing to increased mean temperatures, higher precipitation variability and higher frequency of extreme temperature events. However, there is paucity of information on the potential effect of climate change on crop establishment that includes three stages: seed germination, seedling emergence and beginning of competition among young plantlets. A better understanding on the evolution of seedbed conditions under future climate change not only facilitates adaptation of crops in their original area of production but also helps explore new areas that were not suitable in the past for a given field crop establishment, but may result opportune in the future. Here we used a model-based framework to pinpoint whether the establishment quality of soybean and sugar beet in northern France will be affected by future climate change. To this objective, we first parameterized the SIMPLE crop emergence model and tested its prediction quality on seed germination and seedling emergence in relation to temperatures, water content, and soil structure. We then performed a simulation study over the 2020-2100 period, for early, conventional and late sowing dates. We generated soil temperatures and water contents of seedbeds for these three sowing dates using the STICS soil-crop model with the most pessimistic IPCC scenario (RCP 8.5). We then used these data to feed the SIMPLE crop emergence model to run simulations. Our results showed that, when analyzed by sowing date and for successive 20-year period from 2020 to 2100, there was a significant increase in average seedbed temperatures 30 days after sowing by 2 °C after 2060, while no change in cumulative rainfall 30 days after sowing was found, compared with the past. Emergence rate of sugar beet was generally higher for 2081-2100 while there was no significant change for that of soybean. Main causes of non-emergence for both crops were: seedling death due to clods or soil surface crust, non-germination, and seedling mortality due to drought. Our study shows that the use of future climate scenarios coupled with crop

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Fichiers liés : Lamichhane_etal_Field Crop_Establishment-UnderCC.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : William PlurielNiall WhitefordBilly EdwardsQuentin ChangeatKai Hou YipRobin BaeyensAhmed Al-RefaieMichelle Fabienne BiegerDorian BlainAmélie GressierGloria GuilluyAdam Yassin JaziriFlavien KieferDarius Modirrousta-GalianMario MorvanLorenzo MugnaiMathilde PovedaNour SkafTiziano ZingalesSam WrightBenjamin CharnayPierre DrossartJérémy LeconteAngelos TsiarasOlivia VenotIngo WaldmannJean-Philippe Beaulieu
• Organismes : ECLIPSE 2020 Institute for Astronomy [Edinburgh] Centre for Exoplanet Science Department of Physics and Astronomy [UCL London] Department of Physics and Astronomy [UCL London] Department of Physics and Astronomy [UCL London] Instituut voor Sterrenkunde [Leuven] Department of Physics and Astronomy [UCL London] College of Engineering, Mathematics and Physical Sciences [Exeter] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Institut d'Astrophysique de Paris PLANETO - LATMOS Dipartimento di Fisica [Torino] INAF - Osservatorio Astrofisico di Torino ECLIPSE 2020 Institut d'Astrophysique de Paris INAF - Osservatorio Astronomico di Palermo Dipartimento di Fisica e Chimica [Palermo] Department of Physics and Astronomy [UCL London] Dipartimento di Fisica [Roma La Sapienza] Laboratoire Interuniversitaire des Systèmes Atmosphériques Maison de la Simulation Department of Physics and Astronomy [UCL London] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics ECLIPSE 2020 Department of Physics and Astronomy [UCL London] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics ECLIPSE 2020 Department of Physics and Astronomy [UCL London] Laboratoire Interuniversitaire des Systèmes Atmosphériques Department of Physics and Astronomy [UCL London] Institut d'Astrophysique de Paris School of Physical Sciences [Hobart]
• Publié dans The Astronomical Journal le 22/10/2020

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Résumé : We present the analysis of the hot-Jupiter KELT-7 b using transmission and emission spectroscopy from the Hubble Space Telescope (HST), both taken with the Wide Field Camera 3 (WFC3). Our study uncovers a rich transmission spectrum which is consistent with a cloud-free atmosphere and suggests the presence of H2O and H-. In contrast, the extracted emission spectrum does not contain strong absorption features and, although it is not consistent with a simple blackbody, it can be explained by a varying temperature-pressure profile, collision induced absorption (CIA) and H-. KELT-7b had also been studied with other space-based instruments and we explore the effects of introducing these additional datasets. Further observations with Hubble, or the next generation of space-based telescopes, are needed to allow for the optical opacity source in transmission to be confirmed and for molecular features to be disentangled in emission.

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Fichiers liés : 2006.14199v2.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Izanne RoosEmmanuelle LerayFederico FrascoliRomain CaseyJ William L BrownDana HorakovaEva HavrdovaMaria TrojanoFrancesco PattiGuillermo IzquierdoSara EichauMarco OnofrjAlessandra LugaresiAlexandre PratMarc GirardPierre GrammondPatrizia SolaDiana FerraroSerkan OzakbasRoberto BergamaschiMaria José SáElisabetta CartechiniCavit BozFranco GranellaRaymond HuppertsMurat TerziJeannette Lechner-ScottDaniele SpitaleriVincent van PeschAysun SoysalJavier OlascoagaJulie Prévost-ZuddasEduardo Aguera-MoralesMark SleeTunde CsepanyRecai TurkogluYoussef SidhomRiadh GouiderBart van WijmeerschPamela MccombeRichard MacdonellAlasdair ColesCharles MalpasHelmut ButzkuevenSandra VukusicTomas KalincikPierre DuquetteFrancois Grand'MaisonGerardo IulianoCristina Ramo-TelloClaudio SolaroJose Antonio Cabrera-GomezMaria Edite RioRicardo Fernandez BolañosVahid ShaygannejadCelia Oreja-GuevaraJose Luis Sanchez-MenoyoThor PetersenAyse AltintasMichael BarnettShlomo FlechterYara FragosoMaria Pia AmatoFraser MooreRadek AmpapaFreek VerheulSuzanne HodgkinsonEdgardo CristianoBassem YamoutGuy LaureysJose Andres DominguezCees ZwanikkenNorma DeriEniko DobosCarlos VrechErnest ButlerCsilla RozsaTatjana Petkovska-BoskovaRana KarabudakCecilia RajdaJabir AlkhabooriMaria Laura SaladinoCameron ShawNeil ShueySteve VucicAngel Perez SempereJamie CampbellImre PiroskaBruce TaylorAnneke van Der WaltLudwig KapposEtienne RoulletOrla GrayMagdolna SimoCarmen-Adella SirbuBruno BrochetFrançois CottonJérôme de SèzeArmelle DionPascal DouekF. GuilleminDavid-Axel LaplaudChristine Lebrun-FrénayThibault MoreauJavier OlaizJean PelletierClaire Rigaud-BullyBruno StankoffRomain MarignierMarc DebouverieGilles EdanJonathan CironAurélie RuetNicolas CollonguesCatherine LubetzkiPatrick VermerschPierre M LabaugeGilles DeferMikael CohenAgnès FromontSandrine WiertlewskyEric BergerPierre ClavelouBertrand AudoinClaire GiannesiniOlivier GoutEric ThouvenotOlivier HeinzlefAbdullatif Al-KhedrBertrand BourreOlivier CasezPhilippe CabreAlexis MontcuquetAlain CréangeJean-Philippe CamdessanchéJustine FaureAude MauroussetIvania PatryKarolina HankiewiczCorinne PottierNicolas MaubeugeCéline LabeyrieChantal Nifle
• Organismes : University of Melbourne The Royal Melbourne Hospital Recherche en Pharmaco-épidémiologie et Recours aux Soins École des Hautes Études en Santé Publique Département Méthodes quantitatives en santé publique Swinburne University of Technology [Melbourne] Université Claude Bernard Lyon 1 University of Cambridge [Cambridge, UK] First Faculty of Medicine Charles University First Faculty of Medicine Charles University Università degli studi di Bari Aldo Moro = University of Bari Aldo Moro Università degli studi di Catania = University of Catania Hospital Universitario Virgen Macarena [Séville] Hospital Universitario Virgen Macarena [Séville] University "G. d'Annunzio" of Chieti-Pescara [Chieti] Alma Mater Studiorum Università di Bologna = University of Bologna Université de Montréal Université de Montréal University of Modena and Reggio Emilia Dokuz Eylül Üniversitesi = Dokuz Eylül University [Izmir] IRCCS Mondino Foundation Universidade Fernando Pessoa KTU Medical Faculty Farabi Hospital Università degli studi di Parma = University of Parma Zuyderland Ziekenhuis Medical Faculty [Samsun, Turkey] University of Newcastle [Callaghan, Australia] Université Catholique de Louvain = Catholic University of Louvain Bakirkoy Education and Research Hospital for Psychiatric and Neurological Diseases Hospital Universitario Donostia Hospital Universitario Reina Sofía de Córdoba Haydarpasa Numune Training and Research Hospital Hasselt University The University of Queensland Hitachi Cambridge Laboratory [University of Cambridge] University of Melbourne Monash University [Melbourne] University of Melbourne Centre de Recherche du Centre Hospitalier de l’Université de Montréal Ospedali Riuniti di Salerno Centre Hospitalier Régional Universitaire [Montpellier] Université de Montpellier Centre hospitalier universitaire de Poitiers = Poitiers University Hospital Hôpital Bicêtre [AP-HP, Le Kremlin-Bicêtre]
• Publié dans Brain - A Journal of Neurology le 29/10/2020

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Résumé : In multiple sclerosis, treatment start or switch is prompted by evidence of disease activity. Whilst immunomodulatory therapies reduce disease activity, the time required to attain maximal effect is unclear. In this study we aimed to develop a method that allows identification of the time to manifest fully and clinically the effect of multiple sclerosis treatments (‘therapeutic lag’) on clinical disease activity represented by relapses and progression-of-disability events. Data from two multiple sclerosis registries, MSBase (multinational) and OFSEP (French), were used. Patients diagnosed with multiple sclerosis, minimum 1-year exposure to treatment, minimum 3-year pretreatment follow-up and yearly review were included in the analysis. For analysis of disability progression, all events in the subsequent 5-year period were included. Density curves, representing incidence of relapses and 6-month confirmed progression events, were separately constructed for each sufficiently represented therapy. Monte Carlo simulations were performed to identify the first local minimum of the first derivative after treatment start; this point represented the point of stabilization of treatment effect, after the maximum treatment effect was observed. The method was developed in a discovery cohort (MSBase), and externally validated in a separate, non-overlapping cohort (OFSEP). A merged MSBase-OFSEP cohort was used for all subsequent analyses. Annualized relapse rates were compared in the time before treatment start and after the stabilization of treatment effect following commencement of each therapy. We identified 11 180 eligible treatment epochs for analysis of relapses and 4088 treatment epochs for disability progression. External validation was performed in four therapies, with no significant difference in the bootstrapped mean differences in therapeutic lag duration between registries. The duration of therapeutic lag for relapses was calculated for 10 therapies and ranged between 12 and 30 weeks. The duration of therapeutic lag for disability progression was calculated for seven therapies and ranged between 30 and 70 weeks. Significant differences in the pre- versus post-treatment annualized relapse rate were present for all therapies apart from intramuscular interferon beta-1a. In conclusion we have developed, and externally validated, a method to objectively quantify the duration of therapeutic lag on relapses and disability progression in different therapies in patients more than 3 years from multiple sclerosis onset. Objectively defined periods of expected therapeutic lag allows insights into the evaluation of treatment response in randomized clinical trials and may guide clinical decision-making in patients who experience early on-treatment disease activity. This method will subsequently be applied in studies that evaluate the effect of patient and disease characteristics on therapeutic lag.

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Fichiers liés : 2020-05-06 Determinants of Lag Roos brain.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Pierre CarpentierJean-Philippe ChancelierMichel de LaraFrançois Pacaud
• Organismes : Optimisation et commande Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique Centre d'Enseignement et de Recherche en Mathématiques et Calcul Scientifique
• Publié dans Journal of Optimization Theory and Applications le 25/10/2020

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Résumé : We consider multistage stochastic optimization problems involving multiple units. Each unit is a (small) control system. Static constraints couple units at each stage. We present a mix of spatial and temporal decompositions to tackle such large scale problems. More precisely, we obtain theoretical bounds and policies by means of two methods, depending whether the coupling constraints are handled by prices or by resources. We study both centralized and decentralized information structures. We report the results of numerical experiments on the management of urban microgrids. It appears that decomposition methods are much faster and give better results than the standard Stochastic Dual Dynamic Programming method, both in terms of bounds and of policy performance.

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Fichiers liés : preprint_Mixed_Spatial_and_Temporal_Decompositions_v1.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Aikaterini VandorouDavid BennettJean-Philippe BeaulieuChristophe AlardJoshua BlackmanAndrew ColeAparna BhattacharyaIan BondNaoki KoshimotoJean-Baptiste Marquette
• Organismes : University of Tasmania [Hobart] Aston Business School Institut d'Astrophysique de Paris Institut d'Astrophysique de Paris NASA Goddard Space Flight Center The University of Tokyo Université de Bordeaux
• Publié dans The Astronomical Journal le 22/10/2020

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Fichiers liés : Vandorou_2020_AJ_160_121.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Nour SkafMichelle Fabienne BiegerBilly EdwardsQuentin ChangeatMario MorvanFlavien KieferDoriann BlainTiziano ZingalesMathilde PovedaAhmed Al-RefaieRobin BaeyensAmélie GressierGloria GuilluyAdam Yassin JaziriDarius Modirrousta-GalianLorenzo MugnaiWilliam PlurielNiall WhitefordSam WrightKai Hou YipBenjamin CharnayJérémy LecontePierre DrossartAngelos TsiarasOlivia VenotIngo WaldmannJean-Philippe Beaulieu
• Organismes : Department of Physics and Astronomy [UCL London] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics College of Engineering, Mathematics and Physical Sciences [Exeter] Department of Physics and Astronomy [UCL London] Department of Physics and Astronomy [UCL London] Department of Physics and Astronomy [UCL London] Institut d'Astrophysique de Paris Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics ECLIPSE 2020 Laboratoire Interuniversitaire des Systèmes Atmosphériques Maison de la Simulation Department of Physics and Astronomy [UCL London] Instituut voor Sterrenkunde [Leuven] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Institut d'Astrophysique de Paris PLANETO - LATMOS Dipartimento di Fisica [Torino] INAF - Osservatorio Astrofisico di Torino ECLIPSE 2020 INAF - Osservatorio Astronomico di Palermo Dipartimento di Fisica [Roma La Sapienza] ECLIPSE 2020 Institute for Astronomy [Edinburgh] Centre for Exoplanet Science Department of Physics and Astronomy [UCL London] Department of Physics and Astronomy [UCL London] Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics ECLIPSE 2020 Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Department of Physics and Astronomy [UCL London] Laboratoire Interuniversitaire des Systèmes Atmosphériques Department of Physics and Astronomy [UCL London] Institut d'Astrophysique de Paris School of Physical Sciences [Hobart]
• Publié dans The Astronomical Journal le 22/10/2020

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Résumé : This paper presents the atmospheric characterization of three large, gaseous planets: WASP-127 b, WASP-79 b, and WASP-62 b. We analyzed spectroscopic data obtained with the G141 grism (1.088-1.68 μm) of the Wide Field Camera 3 on board the Hubble Space Telescope using the Iraclis pipeline and the TauREx3 retrieval code, both of which are publicly available. For WASP-127 b, which is the least dense planet discovered so far and is located in the short-period Neptune desert, our retrieval results found strong water absorption corresponding to an abundance of log(H2O) = -2.71 +0.78−1.05 and absorption compatible with an iron hydride abundance of log(FeH) = −5.25+0.88−1.10, with an extended cloudy atmosphere. We also detected water vapor in the atmospheres of WASP-79 b and WASP-62 b, with best-fit models indicating the presence of iron hydride, too. We used the Atmospheric Detectability Index as well as Bayesian log evidence to quantify the strength of the detection and compared our results to the hot Jupiter population study by Tsiaras et al. While all the planets studied here are suitable targets for characterization with upcoming facilities such as the James Webb Space Telescope and Ariel, WASP-127 b is of particular interest due to its low density, and a thorough atmospheric study would develop our understanding of planet formation and migration. * ARES: Ariel Retrieval of Exoplanets School.

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Fichiers liés : Skaf_2020_AJ_160_109.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Benoit YouPatrick RobelinMichel TodChristophe LouvetJean-Pierre LotzSophie Abadie-LacourtoisieMichel FabbroChristophe DesauwNathalie Bonichon-LamichhaneJean-Emmanuel KurtzPhilippe FollanaMarianne LeheurteurFrancesco Del PianoGwénael FerronGaëtan de RauglaudreIsabelle Ray-CoquardPierre CombeAnnick Chevalier-PlaceFlorence JolyAlexandra LearyEric Pujade-LauraineGilles FreyerOlivier Colomban
• Organismes : Interface de Recherche Fondamentale et Appliquée en Cancérologie
• Publié dans Clinical Cancer Research le 30/10/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Igor NikiforovFouzi HarrouRémi CogrannePierre BeauseroyEdith Grall-MaësBlaise Kévin GuépiéLionel FillatreJean-Philippe Jeannot
• Organismes : Laboratoire Modélisation et Sûreté des Systèmes Laboratoire Modélisation et Sûreté des Systèmes Laboratoire Modélisation et Sûreté des Systèmes Laboratoire Modélisation et Sûreté des Systèmes Laboratoire Modélisation et Sûreté des Systèmes Laboratoire Modélisation et Sûreté des Systèmes Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Projet MEDIACODING Commissariat à l'énergie atomique et aux énergies alternatives
• Publié dans Nuclear Engineering and Design le 01/11/2020

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Fichiers liés : S0029549320302272.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 01/09/2020
• Auteurs : Jean-Baptiste DeltourMarie D’assigny FlamenMiriam LadsousLama GiovansiliBertrand CariouPhilippe CaronDelphine DruiPierre Lebranchu
• Organismes : Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Centre Hospitalier Régional Universitaire [CHU Lille] Fondation Ophtalmologique Adolphe de Rothschild [Paris] Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Centre Hospitalier Universitaire de Toulouse Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Laboratoire des Sciences du Numérique de Nantes
• Publié dans Graefe's Archive for Clinical and Experimental Ophthalmology le 26/10/2020

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