Philippe JEAN-PIERRE

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• Type de publi. : Article dans une revue
• Date de publi. : 21/03/2020
• Auteurs : Thibaut LurtonYves BalkanskiVladislav BastrikovSlimane BekkiLaurent BoppPascale BraconnotPatrick BrockmannPatricia CaduleCamille ContouxAnne CozicDavid CugnetJean-Louis DufresneChristian ÉthéMarie-Alice FoujolsJosefine GhattasDidier A. HauglustaineRong Ming HuMasa KageyamaMyriam KhodriNicolas LebasGuillaume LevavasseurMarion MarchandCatherine OttleP. PeylinAdriana SimaSophie Laval-SzopaRémi ThiéblemontN. VuichardOlivier Boucher
• Organismes : Institut Pierre-Simon-Laplace Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] STRATO - LATMOS Laboratoire de Météorologie Dynamique (UMR 8539) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] Calcul Scientifique Institut Pierre-Simon-Laplace Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] Calcul Scientifique Laboratoire de Météorologie Dynamique (UMR 8539) Laboratoire de Météorologie Dynamique (UMR 8539) Institut Pierre-Simon-Laplace Institut Pierre-Simon-Laplace Institut Pierre-Simon-Laplace Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] STRATO - LATMOS Modélisation du climat Océan et variabilité du climat Océan et variabilité du climat Institut Pierre-Simon-Laplace STRATO - LATMOS Modélisation des Surfaces et Interfaces Continentales Modélisation des Surfaces et Interfaces Continentales Laboratoire de Météorologie Dynamique (UMR 8539) Modélisation du climat STRATO - LATMOS Modélisation des Surfaces et Interfaces Continentales Institut Pierre-Simon-Laplace
• Publié dans Journal of Advances in Modeling Earth Systems le 25/10/2020

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Résumé : The implementation of boundary conditions is a key aspect of climate simulations. We describe here how the Climate Model Intercomparison Project Phase 6 (CMIP6) forcing data sets have been processed and implemented in Version 6 of the Institut Pierre-Simon Laplace (IPSL) climate model (IPSL-CM6A-LR) as used for CMIP6. Details peculiar to some of the Model Intercomparison Projects are also described. IPSL-CM6A-LR is run without interactive chemistry; thus, tropospheric and stratospheric aerosols as well as ozone have to be prescribed. We improved the aerosol interpolation procedure and highlight a new methodology to adjust the ozone vertical profile in a way that is consistent with the model dynamical state at the time step level. The corresponding instantaneous and effective radiative forcings have been estimated and are being presented where possible. Plain Language Summary Climate Model Intercomparison Project Phase 6 is an international project to compare the results from climate model simulations performed according to a common protocol. Such simulations require boundary conditions (called "climate forcings"), which are fed to the models in order to represent, for example, long-lived greenhouse gases, ozone, atmospheric aerosols, or land surface properties. The same forcing data sets are used by the different modeling groups who carry out the Climate Model Intercomparison Project Phase 6 simulations; however, their implementation may differ as it depends on the model structure. This article gives details of how these forcing data were implemented in the IPSL-CM6A-LR model. Some of the forcing data are common to all types all simulations, whereas others depend on the runs considered. Radiative forcings, as estimated in the model, are presented for some of the forcing mechanisms.

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Fichiers liés : 2019MS001940.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 19/03/2020
• Auteurs : Nadim CassirLaurence PascalDavid FerrieuxChristiane BruelChristophe GuervillyStanislas RebaudetKostas DanisLora KopecFlorence FenollarEmmanuelle VaronVéronique VigJean-Luc LasalleLauriane RamalliPierre MicheletJean-Christophe LagierNicolas PersicoPhilippe BrouquiPhilippe MalfaitPhilippe Parola
• Organismes : Institut Hospitalier Universitaire Méditerranée Infection Microbes Evolution Phylogénie et Infections Institut de Veille Sanitaire Santé publique France [Marseille] Institut Hospitalier Universitaire Méditerranée Infection Observatoire régional de la santé Provence-Alpes-Côte d'Azur [Marseille] Centre d'études et de recherche sur les services de santé et la qualité de vie Hôpital Nord [CHU - APHM] Sciences Economiques et Sociales de la Santé & Traitement de l'Information Médicale Santé publique France - French National Public Health Agency [Saint-Maurice, France] Microbes Evolution Phylogénie et Infections Institut Hospitalier Universitaire Méditerranée Infection Vecteurs - Infections tropicales et méditerranéennes Institut Hospitalier Universitaire Méditerranée Infection Centre National de Référence des Pneumocoques (CNRP) Observatoire régional de la santé Provence-Alpes-Côte d'Azur [Marseille] Santé publique France [Marseille] Santé publique France [Marseille] Hôpital de la Timone [CHU - APHM] Centre recherche en CardioVasculaire et Nutrition = Center for CardioVascular and Nutrition research Microbes Evolution Phylogénie et Infections Institut Hospitalier Universitaire Méditerranée Infection Centre d'études et de recherche sur les services de santé et la qualité de vie Hôpital Nord [CHU - APHM] Microbes Evolution Phylogénie et Infections Institut Hospitalier Universitaire Méditerranée Infection Santé publique France [Marseille] Vecteurs - Infections tropicales et méditerranéennes Institut Hospitalier Universitaire Méditerranée Infection
• Publié dans Eurosurveillance le 28/10/2020

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Résumé : We report the third outbreak of pneumococcal pneumonia within one year among workers in European shipyards. During January and February 2020, 37 cases of pneumonia were identified in a shipyard in Marseille, south-eastern France. Outbreak control measures were implemented, including a mass vaccination campaign with 23-valent pneumococcal polysaccharide vaccine targeting all shipyard workers. Given the high mobility of shipyard workers, coordinated responses between European public health institutes are necessary to avoid further outbreaks.

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Fichiers liés : eurosurv-25-11-5.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 18/03/2020
• Auteurs : Claire MignardMaud Maho-VaillantMarie-Laure GolinskiPierre BalayéCatherine Prost-SquarcioniEstelle HouivetSé´bastien CalboBruno LabeilleCatherine Picard-DahanMaria Polina KonstantinouG. ChabyMarie‐aleth RichardJean-David BouazizSophie Duvert-LehembreEmmanuel DelaportePhilippe BernardFrédéric CauxMarina AlexandreSaskia Ingen-Housz-OroPierre VabresGaëlle QuéreuxAlain DupuySébastien DebarbieuxMartine Avenel-AudranMichel D’incanChristophe BédaneNathalie BénétonDenis JullienNicolas DupinLaurent MiseryLaurent MachetMarie Beylot-BarryOlivier DereureBruno SassolasJacques BenichouPascal JolyVivien Hébert
• Organismes : Hôpital universitaire Robert Debré [Reims] Immuno-Régulation dans les Maladies Auto-Immunes Inflammatoires et le Cancer - EA 7509
• Publié dans JAMA Dermatology le 28/10/2020

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Résumé : ; for the French Study Group on Autoimmune Bullous Skin Diseases IMPORTANCE Rituximab and short-term corticosteroid therapy are the criterion standard treatments for patients with newly diagnosed moderate to severe pemphigus. OBJECTIVE To examine factors associated with short-term relapse in patients with pemphigus treated with rituximab. DESIGN, SETTING, AND PARTICIPANTS This post hoc analysis of a randomized clinical trial (Comparison Between Rituximab Treatment and Oral Corticosteroid Treatment in Patients With Pemphigus [RITUX 3]) conducted from January 1, 2010, to December 31, 2015, included patients from 20 dermatology departments of tertiary care centers in France from the RITUX 3 trial and 3 newly diagnosed patients treated according to the trial protocol. Data analysis was performed from February 1 to June 30, 2019. EXPOSURE Patients randomly assigned to the rituximab group in the RITUX 3 trial and the 3 additional patients were treated with 1000 mg of intravenous rituximab on days 0 and 14 and 500 mg at months 12 and 18 combined with a short-term prednisone regimen. MAIN OUTCOMES AND MEASURES Baseline (pretreatment) clinical and biological characteristics (Pemphigus Disease Area Index [PDAI] score, ranging from 0-250 points, with higher values indicating more severe disease) and changes in anti-desmoglein (DSG) 1 and anti-DSG3 values as measured by enzyme-linked immunosorbent assay during the 3 months after rituximab treatment were compared between patients with disease relapse and those who maintained clinical remission during the first 12 months after treatment. The positive and negative predictive values of these factors were calculated. RESULTS Among 47 patients (mean [SD] age, 54.3 [17.0] years; 17 [36%] male and 30 [64%] female) included in the study, the mean (SD) baseline PDAI score for patients with relapsing disease was higher than that of the patients with nonrelapsing disease (54 [33] vs 28 [24]; P = .03). At month 3, 7 of 11 patients with relapsing disease (64%) vs 7 of 36 patients with nonrelapsing disease (19%) had persistent anti-DSG1 antibody values of 20 IU/mL or higher and/or anti-DSG3 antibody values of 130 IU/mL or higher (P = .01). A PDAI score of 45 or higher defining severe pemphigus and/or persistent anti-DSG1 antibody values of 20 IU/mL or higher and/or anti-DSG3 antibody values of 130 IU/mL or higher at month 3 provided a positive predictive value of 50% (95% CI, 27%-73%) and a negative predictive value of 94% (95% CI, 73%-100%) for the occurrence of relapse after rituximab. CONCLUSIONS AND RELEVANCE The findings suggest that initial PDAI score and changes in anti-DSG antibody values after the initial cycle of rituximab might help differentiate a subgroup of patients with high risk of relapse who might benefit from maintenance rituximab infusion at month 6 from a subgroup of patients with low risk of relapse who do not need early maintenance therapy. TRIAL REGISTRATION NCT00784589

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Fichiers liés : jamadermatology_mignard_2020_oi_200010.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 18/03/2020
• Auteurs : Baptiste CecconiAlan LohPierre Le SidanerRenaud SavalleXavier BonninQuynh Nhu NguyenSonny LionAlbert ShihStéphane AicardiPhilippe ZarkaCorentin LouisAndrée CoffreLaurent LamyLaurent DenisJean-Mathias GriessmeierJeremy FadenChris PikerNicolas AndréVincent GénotStéphane ErardJoseph MafiTodd KingJim SkyMarkus Demleitner
• Organismes : Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Unité Scientifique de la Station de Nançay Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Observatoire de Paris Observatoire de Paris 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 Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Observatoire de Paris Observatoire de Paris Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Unité Scientifique de la Station de Nançay Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Unité Scientifique de la Station de Nançay Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics Unité Scientifique de la Station de Nançay Unité Scientifique de la Station de Nançay Laboratoire de Physique et Chimie de l'Environnement et de l'Espace Institut de recherche en astrophysique et planétologie Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
• Publié dans CODATA Data Science Journal le 26/10/2020

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Résumé : MASER (Measurements, Analysis, and Simulation of Emission in the Radio range) is a comprehensive infrastructure dedicated to time-dependent low frequency radio astronomy (up to about 50 MHz). The main radio sources observed in this spectral range are the Sun, the magnetized planets (Earth, Jupiter, Saturn), and our Galaxy, which are observed either from ground or space. Ground observatories can capture high resolution data streams with a high sensitivity. Conversely, space-borne instruments can observe below the ionospheric cut-off (at about 10 MHz) and can be placed closer to the studied object. Several tools have been developed in the last decade for sharing space physics data. Data visualization tools developed by various institutes are available to share, display and analyse space physics time series and spectrograms. The MASER team has selected a sub-set of those tools and applied them to low frequency radio astronomy. MASER also includes a Python software library for reading raw data from agency archives.

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Fichiers liés : 1118-7292-2-PB.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 17/03/2020
• Auteurs : Marion ChartonErwan FlécherChristophe LeclercqClément DelmasCamille DambrinCéline GoeminneAndré VincentelliMagali MichelLaurence LeheliasConstance VerdonkMarylou ParaMatteo PozziJean-François ObadiaAude BoignardOlivier ChavanonLaurent BarandonKarine NubretMichel KindoTam Hoang MinhPhilippe GaudardEdeline PelcéVlad GariboldiPierre-Yves LitzlerFrédéric AnselmeGerard BabatasiAnnette BelinFabien GarnierMarie BielefeldDavid HamonNicolas LelloucheThierry BourguignonThibaud GenetRomain EschalierNicolas D’ostrevyMarie-Cécile BoriesJerome JouanFabrice VanhuyseHugues BlangyJulie DoucerainRaphaël P MartinsVincent Galand
• Organismes : IMRB - SMCD/"Senescence, Metabolism and Cardiovascular Diseases" [Créteil]
• Publié dans Circulation le 29/10/2020

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• Type de publi. : Article dans une revue
• Date de publi. : 13/03/2020
• Auteurs : Caroline RousseauDavid M GoldenbergMathilde ColombiéJean-Charles SébillePhilippe MeinganLudovic FerrerPierre BaumgartnerEvelyne M CeratoDamien MassonMario CamponeAurore RauscherVincent FleuryCatherine LabbéAlain Faivre-ChauvetJean-Sebastien FresnelClaire ToquetJacques BarbetRobert M SharkeyLoïc CampionFrançoise Kraeber-Bodéré
• Organismes : Nuclear Oncology IBC Pharmaceuticals Inc [Morris Plains, NJ, USA] Immunomedics Inc. [Morris Plains, NJ, USA] Institut de Cancérologie de l'Ouest [Angers/Nantes] Service de Médecine Nucléaire [Nantes] Institut de Cancérologie de l'Ouest [Angers/Nantes] Service de Médecine Nucléaire [Nantes] Institut de Cancérologie de l'Ouest [Angers/Nantes] Service de Radiologie [Nantes] Nuclear Oncology Institut de Cancérologie de l'Ouest [Angers/Nantes] Institut de Cancérologie de l'Ouest [Angers/Nantes] PHU 11 Pharmacie [CHU Nantes] Délégation à la Recherche Clinique et à l'Enovation [Nantes] Département de Biologie des Cancers [ICO, Nantes] Institut d'oncologie de l'Ouest [CHU Nantes] Institut de Cancérologie de l'Ouest [Angers/Nantes] Centre de Recherche en Cancérologie et Immunologie Nantes-Angers PHU 11 Pharmacie [CHU Nantes] Service de Médecine Nucléaire [Nantes] Service de Radiologie [Nantes] Service de Médecine Nucléaire [Nantes] Centre de Recherche en Cancérologie et Immunologie Nantes-Angers Institut de Cancérologie de l'Ouest [Angers/Nantes] Institut d'oncologie de l'Ouest [CHU Nantes] Département de Pathologie [CHU Nantes] GIP ARRONAX [Nantes] Immunomedics Inc. [Morris Plains, NJ, USA] Integrative Oncogenomics of Multiple Myeloma Pathogenesis and Progression Plateforme de Biométrie [CHU Nantes] Nuclear Oncology Service de Médecine Nucléaire [Nantes]
• Publié dans Journal of Nuclear Medicine le 26/10/2020

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Résumé : Purpose: This prospective study evaluated the imaging performance of a novel immunological pretargeting positron-emission tomorgraphy (immuno-PET) method in patients with HER2-negative, carcinoembryonic antigen (CEA)-positive, metastatic breast cancer (BC), compared to computed tomography (CT), bone magnetic resonance imaging (MRI), and 18Fluorodeoxyglucose PET (FDG-PET). Patients and Methods: Twenty-three patients underwent whole-body immuno-PET after injection of 150 MBq 68Ga-IMP288, a histamine-succinyl-glycine peptide given following initial targeting of a trivalent anti-CEA, bispecific, anti-peptide antibody. The gold standards were histology and imaging follow-up. Tumor standard uptake values (SUVmax and SUVmean) were measured, and tumor burden analyzed using Total Tumor Volume (TTV) and Total Lesion Activity (TLA). Results: Total lesion sensitivity of immuno-PET and FDG-PET was 94.7% (1116/1178) and 89.6% (1056/1178), respectively. Immuno-PET had a somewhat higher sensitivity than CT and FDG-PET in lymph nodes (92.4% vs 69.7% and 89.4%, respectively) and liver metastases (97.3% vs 92.1% and 94.8%, respectively), whereas sensitivity was lower for lung metastases (48.3% vs 100% and 75.9%, respectively). Immuno-PET showed higher sensitivity than MRI and FDG-PET for bone lesions (95.8% vs 90.7% and 89.3%, respectively). In contrast to FDG-PET, immuno-PET disclosed brain metastases. Despite equivalent tumor SUVmax, SUVmean, and TTV, TLA was significantly higher with immuno-PET compared to FDG PET (P = 0.009). Conclusion: Immuno-PET using anti-CEA/anti-IMP288 bispecific antibody, followed by 68Ga-IMP288, is a potentially sensitive theranostic imaging method for HER2-negative, CEA-positive, metastatic BC patients, and warrants further research.

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Fichiers liés : ArticleRousseau2020Eq13.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 13/03/2020
• Auteurs : Pierre JésusBertrand GodetLucile Darthou-PouchardPhilippe FayemendyFrançoise Abdallah-LebeauOlivier VilleneuveClaire MarconLaetitia GimenezPierre-Marie PreuxPhilippe CouratierJean Claude Desport
• Organismes : Service d'Hépato-gastro-entérologie et Nutrition [CHU Dupuytren 1, Limoges] Neuroépidémiologie Tropicale Service de Neurologie [CHU Limoges] Service d'Hépato-gastro-entérologie et Nutrition [CHU Dupuytren 1, Limoges] Service d'Hépato-gastro-entérologie et Nutrition [CHU Dupuytren 1, Limoges] Neuroépidémiologie Tropicale Service de Neurologie [CHU Limoges] Service de Neurologie [CHU Limoges] Service de Neurologie [CHU Limoges] Service de Neurologie [CHU Limoges] Epidémiologie des Maladies Chroniques en zone tropicale Neuroépidémiologie Tropicale Service de Neurologie [CHU Limoges] Neuroépidémiologie Tropicale Service d'Hépato-gastro-entérologie et Nutrition [CHU Dupuytren 1, Limoges] Neuroépidémiologie Tropicale
• Publié dans International Journal for Vitamin and Nutrition Research le 27/10/2020

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Résumé : Background & Aims: Epilepsy affects nearly 70 million people worldwide. Vitamin D deficiency may influence the balance of certain epilepsies. The purpose of this study was to determine the vitamin D status and anthropometric measurements of people with epilepsy (PWE), according to their pharmacosensitivity. Methods: Forty-six PWE, with or without drug resistance, underwent nutritional assessment after giving consent. Weight, body mass index (BMI), triceps skinfold thickness (TSF), fat mass (FM) and free fat mass (FFM) by bioelectrical impedance analysis were measured. Serum vitamin D was determined without supplementation. Deficiency was defined as a level < 30 ng/mL. Statistical analysis involved Student t test, ANOVA and Chi2. Results: Patients were aged 44.5 ± 14.3 years, with 60.9% of drug-resistance. BMI was 28.7 ± 7.0, 2.2% were malnourished and 30.4% obese according to the BMI. The average vitamin D level was 15.3 ± 9.9 ng/mL, with 87.0% of deficiency, and 40.0% of severe deficiency (<10 ng/mL). The TSF was higher in drug-resistant cases (p = 0.03). There was no link between drug resistance and anthropometric measurements, FM, FFM or vitamin D concentration. Conclusions: Although limited in size, this study showed that PWE are more often obese. Vitamin D deficiency is more common than in the general population, with a much higher prevalence of severe deficiency.

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• Type de publi. : Pré-publication, Document de travail
• Date de publi. : 12/03/2020
• Auteurs : Nicolas AragonJean-Pierre CancesPhilippe GaboritImad El Quachchach
• Organismes : Mathématiques & Sécurité de l'information Systèmes et Réseaux Intelligents Mathématiques & Sécurité de l'information Systèmes et Réseaux Intelligents

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Résumé : In this paper, we consider a multisource network transmitting information through relays to a base station using Network Coding. We design a model for this scenario and use the rank metric to address the problem of packet errors (caused for example by a malicious user or a defective node). We introduce a new family of codes, the extended LRPC codes, that are very well suited to this model and extensively use the fact that the information comes from multiple sources to decode. They therefore improve the communication reliability compared to classical LRPC codes and Gabidulin codes. We provide a theoretical analysis of their decoding failure probability, both in a one source and multisource scenario, as well as simulation results confirming our analysis.

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Fichiers liés : PIMRC_2018.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 10/03/2020
• Auteurs : Marion ChartonErwan FlécherChristophe LeclercqClément DelmasCamille DambrinCéline GoeminneAndré VincentelliMagali MichelLaurence LeheliasConstance VerdonkMarylou ParaMatteo PozziJean-François ObadiaAude BoignardOlivier ChavanonLaurent BarandonKarine NubretMichel KindoTam Hoang MinhPhilippe GaudardPhilippe RouvièreEdeline PelcéVlad GariboldiPierre-Yves LitzlerFrédéric AnselmeGerard BabatasiAnnette BelinFabien GarnierMarie BielefeldDavid HamonNicolas LelloucheThierry BourguignonThibaud GenetRomain EschalierNicolas D’ostrevyMarie-Cécile BoriesJerome JouanFabrice VanhuyseHugues BlangyJulie DoucerainRaphaël P MartinsVincent Galand
• Organismes : Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou] Laboratoire Traitement du Signal et de l'Image Service de chirurgie thoracique cardiaque et vasculaire [Rennes] = Thoracic and Cardiovascular Surgery [Rennes] Laboratoire Traitement du Signal et de l'Image Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou] Laboratoire Traitement du Signal et de l'Image Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou] Service Cardiologie [CHU Toulouse] Service Cardiologie [CHU Toulouse] Centre Hospitalier Régional Universitaire [CHU Lille] Centre Hospitalier Régional Universitaire [CHU Lille] Centre Hospitalier Universitaire de Nantes = Nantes University Hospital Centre Hospitalier Universitaire de Nantes = Nantes University Hospital AP-HP - Hôpital Bichat - Claude Bernard [Paris] AP-HP - Hôpital Bichat - Claude Bernard [Paris] Centre Hospitalier Universitaire de Bordeaux Centre Hospitalier Universitaire de Bordeaux Centre Hospitalier Universitaire [Strasbourg] Centre Hospitalier Universitaire [Strasbourg] Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] Centre Hospitalier Régional Universitaire [Montpellier] Physiologie & médecine expérimentale du Cœur et des Muscles [U 1046] Hôpital de la Timone [CHU - APHM] Hôpital de la Timone [CHU - APHM] Service de chirurgie cadiovasculaire et thoracique [Rouen] Service de Cardiologie [CHU Rouen] CHU Caen Normandie – Centre Hospitalier Universitaire de Caen Normandie CHU Caen Normandie – Centre Hospitalier Universitaire de Caen Normandie Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand Service de cardiologie et maladies vasculaires [Rennes] = Cardiac, Thoracic, and Vascular Surgery [Rennes] CHU Henri Mondor [Créteil] CHU Henri Mondor [Créteil] Centre Hospitalier Régional Universitaire de Tours Centre Hospitalier Régional Universitaire de Tours Service Chirurgie Cardio-Vasculaire [CHU Clermont-Ferrand] Hôpital Européen Georges Pompidou [APHP] Hôpital Européen Georges Pompidou [APHP] Centre Hospitalier Régional Universitaire de Nancy Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu [Nancy] Centre Hospitalier Régional Universitaire de Nancy Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou] Laboratoire Traitement du Signal et de l'Image Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou] Laboratoire Traitement du Signal et de l'Image Centre Hospitalier Universitaire de Rennes [CHU Rennes] = Rennes University Hospital [Pontchaillou]
• Publié dans Circulation le 29/10/2020

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Fichiers liés : Charton et al-2020-Suicide Attempts Among LVAD Recipients-Mansucript_final version.pdf

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• Type de publi. : Article dans une revue
• Date de publi. : 10/03/2020
• Auteurs : Christophe BernardPierre-Jean BouvetAntony PottierPhilippe Forjonel
• Organismes : Laboratoire ISEN Laboratoire ISEN Laboratoire ISEN Laboratoire ISEN
• Publié dans Sensors le 23/10/2020

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Résumé : The objective of this paper is to provide a multiuser transmission technique for underwater acoustic communication in the framework of an Autonomous Underwater Vehicle (AUV) fleet. By using a variant of a Hyperbolically Frequency-Modulated (HFM) signal, we describe a new family of transmission techniques called MultiUser Chirp Spread Spectrum (MU-CSS), which allows a very simple matched-filter-based decoding. These techniques are expected to provide good resilience against multiuser interference while keeping good robustness to Underwater Acoustic (UWA) channel impairments like Doppler shift. Their implementation for the UWA scenario is described, and the performance results over a simulated shallow-water UWA channel are analyzed and compared against conventional Code-Division Multiple Access (CDMA) and Time-Division Multiple Access (TDMA) transmission. Finally, the feasibility and robustness of the proposed methods are verified over the underWater AcousTic channEl Replay benchMARK (Watermark), fed by several channel responses from sounding experiments performed in a lake

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Fichiers liés : sensors-733297_rev1.pdf

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