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1. Retrospective Multicentric Study on Campylobacter spp. Bacteremia in France: The Campylobacteremia Study

Author: Claire, Tinévez, Fanny, Velardo, Anne Gaëlle, Ranc, Damien, Dubois, Hélène, Pailhoriès, Cyrielle, Codde, Olivier, Join-Lambert, Emmanuelle, Gras, Stéphane, Corvec, Catherine, Neuwirth, Cléa, Melenotte, Marie, Dorel, Anne Sophie, Lagneaux, Maxime, Pichon, Violaine, Doat, Damien, Fournier, Adrien, Lemaignen, Leslie, Bouard, Pierre, Patoz, Genevieve, Hery-Arnaud, Nadine, Lemaitre, Célia, Couzigou, Thomas, Guillard, Elise, Recalt, Emmanuelle, Bille, Yaniss, Belaroussi, Didier, Neau, Charles, Cazanave, Philippe, Lehours, Mathilde, Puges, Cong, Tri Tran, Service de bactériologie [Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), and Centre Hospitalier Universitaire de Reims (CHU Reims)
Subjects: Microbiology (medical), medicine.medical_specialty, Bacteremia, medicine.disease_cause, Campylobacter jejuni, 03 medical and health sciences, 0302 clinical medicine, Internal medicine, Campylobacter Infections, medicine, Humans, 030212 general & internal medicine, Helicobacter, Aged, Retrospective Studies, 030304 developmental biology, 0303 health sciences, biology, business.industry, Mortality rate, Campylobacter, Retrospective cohort study, biology.organism_classification, medicine.disease, Anti-Bacterial Agents, 3. Good health, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Infectious Diseases, Campylobacter coli, Campylobacter fetus, business
Abstract: Background Campylobacter spp. bacteremia is a severe infection. A nationwide 5-year retrospective study was conducted to characterize its clinical features and prognostic factors. Methods The study included patients with Campylobacter spp. bacteremia diagnosed in 37 French hospitals participating in the surveillance network of the National Reference Center for Campylobacters and Helicobacters, from 1 January 2015 to 31 December 2019. The goal was to analyze the effects of a delay of appropriate antibiotic therapy and other risk factors on 30-day mortality rates, antibiotic resistance, patient characteristics, and prognosis according to the Campylobacter species. Results Among the 592 patients, Campylobacter jejuni and Campylobacter fetus were the most commonly identified species (in 42.9% and 42.6%, respectively). The patients were elderly (median age 68 years), and most had underlying conditions, mainly immunodepression (43.4%), hematologic cancers (25.9%), solid neoplasms (23%), and diabetes (22.3%). C. jejuni and Campylobacter coli were associated with gastrointestinal signs, and C. fetus was associated with secondary localizations. Among the 80 patients (13.5%) with secondary localizations, 12 had endocarditis, 38 vascular, 24 osteoarticular, and 9 ascitic fluid infections. The 30-day mortality rate was 11.7%, and an appropriate antibiotic treatment was independently associated with 30-day survival (odds ratio, 0.47 [95% confidence interval, .24–.93]; P = .03). The median efficient therapy initiation delay was quite short (2 days [interquartile range, 0–4 days]) but it had no significant impact on the 30-day mortality rate (P = .78). Conclusions Campylobacter spp. bacteremia mainly occurred in elderly immunocompromised individuals with variable clinical presentations according to the species involved. Appropriate antimicrobial therapy was associated with improved 30-day survival.
Published: 2021

2. Performance of discs, sensititre EUMDROXF microplates and MTS gradient strips for the determination of the susceptibility of multidrug resistant Pseudomonas aeruginosa to cefiderocol

Author: Léa Devoos, Adrien Biguenet, Julie Rousselot, Maxime Bour, Patrick Plésiat, Damien Fournier, and Katy Jeannot
Subjects: Microbiology (medical), Infectious Diseases, General Medicine
Abstract: To evaluate the performance of commercially available tests to determine the susceptibility of multidrug resistant (MDR) clinical Pseudomonas aeruginosa strains to cefiderocol.A collection of 150 clinical strains of P. aeruginosa resistant to ceftazidime, (CMI8 mg/L) imipenem (CMI4 mg/L) and ceftolozane/tazobactam (CMI4/4 mg/L), isolated from 2015 to 2022 was selected. Cefiderocol susceptibility was determined in parallel (i) by disc diffusion using MAST, Oxoid and Liofilchem discs deposited on Mueller Hinton agar batches (MHA) from Bio-Rad, BioMérieux, MAST, Becton Dickinson, I2A, and Oxoid, (ii) by MTS gradient strips (Liofilchem), and (iii) by EUMDROXF Sensititre microplates. MICs and inhibition zones were compared to the broth microdilution reference method (BMD) MICs.The MICDetermination of cefiderocol susceptibility in MDR P. aeruginosa clinical strains by Sensititre EUMDROXF microplates is an alternative to the reference BMD method. However, MIC values ± 1 dilution apart from the breakpoint (2 mg/L) should be controlled by BMD; whereas the use of MTS gradient strips is discouraged. Disc diffusion might be useful for screening, unfortunately many cefiderocol resistant strains are not detected.
Published: 2022

3. Outgoing modal solutions for Galbrun's equation in helioseismology

Author: Damien Fournier, Laurent Gizon, Florian Faucher, Ha Pham, Hélène Barucq, Modélisation et simulation de la propagation des ondes fondées sur des mesures expérimentales pour caractériser des milieux géophysiques et héliophysiques et concevoir des objets complexes (MAKUTU), Laboratoire de Mathématiques et de leurs Applications [Pau] (LMAP), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS)-Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS)-Inria Bordeaux - Sud-Ouest, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Institut Polytechnique de Bordeaux (Bordeaux INP), Faculty of Mathematics [Vienna], University of Vienna [Vienna], Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, and Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS)
Subjects: Regular singular point, Context (language use), MSC34B2700A7135L0535B4033C5585A20, 01 natural sciences, Galbrun's equation, Modal outgoing Green's kernel, Long-range scattering, [MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP], Helioseismology, 0101 mathematics, ComputingMilieux_MISCELLANEOUS, Mathematics, Basis (linear algebra), [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], Applied Mathematics, 010102 general mathematics, Mathematical analysis, Spherical harmonics, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], 010101 applied mathematics, Modal, Kernel (image processing), Circular symmetry, Indicial analysis, Analysis
Abstract: We construct modal outgoing Green's kernels for the simplified Galbrun's equation under spherical symmetry, in the context of helioseismology. The coefficients of the equation are C 2 functions representing the solar interior model S , complemented with an isothermal atmospheric model. We solve the equation in vectorial spherical harmonics basis to obtain modal equations for the different components of the unknown wave motions. These equations are then decoupled and written in Schrodinger form, whose coefficients are shown to be C 2 apart from at most two regular singular points, and to decay like a Coulomb potential at infinity. These properties allow us to construct an outgoing Green's kernel for each spherical mode. We also compute asymptotic expansions of coefficients up to order r − 3 as r tends to infinity, and show numerically that their accuracy is improved by including the contribution from the gravity although this term is of order r − 3 .
Published: 2021

4. Lyme neuroborreliosis: warning about the risk of false negative of CSF Borrelia burgdorferi antibody index related to high level of CSF albumin

Author: Timothée Klopfenstein, Damien Fournier, Vincent Gendrin, Pauline Garnier, Antoine Grillon, and Souheil Zayet
Subjects: Microbiology (medical), Lyme Disease, Infectious Diseases, Borrelia burgdorferi Group, Albumins, Borrelia burgdorferi, Humans, Lyme Neuroborreliosis, General Medicine, Antibodies, Bacterial
Published: 2022

5. Time to blood culture positivity: An independent predictor of infective endocarditis and mortality in patients with Staphylococcus aureus bacteraemia

Author: V. Le Moing, Sandrine Barbas, Elodie Curlier, Hélène Jean-Pierre, Willem Vanwamel, Damien Fournier, Isabelle Patry, Eric Bellissant, Jacques Reynes, Sandrine Gohier-Treuvelot, François Alla, Catherine Chirouze, Fabienne Le Gac, Catherine Neuwirth, Philippe Géraud, François Goehringer, Christine Selton-Suty, Bruno Hoen, Virginie Sussmuth, Christine Delonca, Nathalie Keil, Catherine Sportouch, Thanh Doco-Lecompte, S. Tubiana, F. Vandenesch, Laetitia Minary, S. Desage, Catherine Leport, Hepher Malela, Cécile Descottes-Genon, Lionel Piroth, Christian Michelet, Pascale Rausch, Matthieu Revest, Bernard Iung, Jerome Etienne, Albert Sotto, Vincent Le Moing, J.-P. Lavigne, Catherine Cornu, Fernando Rivadeneira, Elise Thebault, Nathalie Bedos, Pierre-Yves Donnio, Lucie Vettoretti, Michèle Bes, S. Siméon, Jean-Christophe Eicher, Catherine Lechiche, X. Duval, François Vandenesch, Marie Célard, Pascal Chavanet, Sarah Tubiana, Raymond Ruimy, M.-L. Erpelding, Thierry May, André Pechinot, Nejla Aissa, Emila Ilic Habensus, François Delahaye, C.-A. Gustave, Lorraine Letranchant, Taissia Lelekov-Boissard, C. Chirouze, Anne Tristan, Audrey Coma, Jean-Philippe Lavigne, Xavier Duval, Pierre Tattevin, Alex van Belkum, Pierre Braquet, Marie-Line Erpelding, Pascale Longuet, Malika Hadid, Marie-Christine Greusard, Florence Galtier, Anne Verchère, P. Tattevin, Service des maladies infectieuses et réanimation médicale [Rennes] = Infectious Disease and Intensive Care [Rennes], CHU Pontchaillou [Rennes], Maladies Infectieuses [CHU de Montpellier], Centre Hospitalier Universitaire de Montpellier (CHU Montpellier ), Infection, Anti-microbiens, Modélisation, Evolution (IAME (UMR_S_1137 / U1137)), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), CIC1425 Bichat [AP-HP Hôpital Bichat - Claude Bernard] (INSERM), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire de Bactériologie [CHRU Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Virulence bactérienne et maladies infectieuses (VBMI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Service de Microbiologie [CHU Caremeau, Nîmes], Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes)-Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de référence des Staphylocoques [HCL, Lyon] (Institut des Agents Infectieux), Hospices Civils de Lyon (HCL), Laboratoire de Bactériologie [HCL, Lyon] (Institut des Agents Infectieux), Laboratoire Chrono-environnement - CNRS - UBFC (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), ARN régulateurs bactériens et médecine (BRM), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), VIRSTA/AEPEI Study Group. Chirouze C, Curlier E, Descottes-Genon C, Hoen B, Patry I, Vettoretti L, Chavanet P, Eicher JC, Gohier-Treuvelot S, Greusard MC, Neuwirth C, Péchinot A, Piroth L, Célard M, Cornu C, Delahaye F, Hadid M, Rausch P, Coma A, Galtier F, Géraud P, Jean-Pierre H, Le Moing V, Sportouch C, Reynes J, Aissa N, Doco-Lecompte T, Goehringer F, Keil N, Letranchant L, Malela H, May T, Selton-Suty C, Bedos N, Lavigne JP, Lechiche C, Sotto A, Duval X, Habensus EI, Iung B, Leport C, Longuet P, Ruimy R, Bellissant E, Donnio PY, Le Gac F, Michelet C, Revest M, Tattevin P, Thebault E, Alla F, Braquet P, Erpelding ML, Minary L, Tubiana S, Bès M, Etienne J, Lelekov-Boissard T, Tristan A, Vandenesch F, Van Belkum A, Rivadeneira F, Vanwamel W, Barbas S, Delonca C, Sussmuth V, Verchère A., Service des maladies infectieuses et réanimation médicale, Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC), AP-HP - Hôpital Bichat - Claude Bernard [Paris]-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire [Besançon] (CHRU Besançon), CHU Caremeau, Nîmes, CIC-Nancy, Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu [Nancy]-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire Chrono-environnement - UFC (UMR 6249) (LCE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Recherches Translationnelles sur le VIH et les maladies infectieuses (TransVIHMI), Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Universtié Yaoundé 1 [Cameroun]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), CIC Hôpital Bichat, Institut National de la Santé et de la Recherche Médicale (INSERM)-UFR de Médecine-AP-HP - Hôpital Bichat - Claude Bernard [Paris], Modèles et méthodes de l'évaluation thérapeutique des maladies chroniques (U738 / UMR_S738), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), service de maladies infectieuses CHU J Minjoz Besancon, Hôpital Jean Minjoz, Centre National de référence des Staphylocoques, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL), Service des Maladies Infectieuses et Tropicales [Point-à-Pitre, Guadeloupe], CHU Pointe-à-Pitre/Abymes [Guadeloupe], Centre d'Investigation Clinique Antilles-Guyane (CIC - Antilles Guyane), Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Service de Cardiologie [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Biologie Laboratoire de Bacteriologie, Laboratoire de Microbiologie Médicale et Moléculaire, Université de Bourgogne (UB), Département d'infectiologie (CHU de Dijon), Evaluation et modélisation des effets thérapeutiques, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), REseau national d'Investigation clinique en VACcinologie (REIVAC), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Cochin [AP-HP]-Hôtel-Dieu-Groupe hospitalier Broca-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de Gestion des Essais de Produits de Santé (CeNGEPS), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Département Maladies Infectieuses et Tropicales, Hôpital Universitaire, Montpellier, France, Service de Bactériologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Service des Maladies Infectieuses et Tropicales [CHRU Nancy], Service de Cardiologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nîmes (CHRU Nîmes), Laboratoire universitaire d'antibiologie, Université Montpellier 1 (UM1), CIC - CHU Bichat, Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Bichat - Claude Bernard, Centre d'Investigation Clinique [Rennes] (CIC), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-Institut National de la Santé et de la Recherche Médicale (INSERM), Microbiologie : Risques Infectieux, Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-CHU Pontchaillou [Rennes]-Faculté de Chirurgie Dentaire de Rennes-Faculté d'Odontologie-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Service des maladies infectieuses, Maladies chroniques, santé perçue, et processus d'adaptation (APEMAC), Université de Lorraine (UL), CHU Montpellier, Service d'Epidémiologie et Evaluations Cliniques [CHRU Nancy] (Pôle S2R), Centre National de Reference des Staphylocoques, Université de Lyon, Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Laboratoire Chrono-environnement (UMR 6249) (LCE), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), and Jonchère, Laurent
Subjects: Male, Methicillin-Resistant Staphylococcus aureus, 0301 basic medicine, Microbiology (medical), Staphylococcus aureus, bacteraemia, medicine.medical_specialty, Time Factors, Multivariate analysis, 030106 microbiology, Bacteremia, Independent predictor, medicine.disease_cause, 03 medical and health sciences, 0302 clinical medicine, Interquartile range, hemic and lymphatic diseases, Internal medicine, medicine, Humans, Blood culture, Prospective Studies, 030212 general & internal medicine, time to blood culture positivity, Prospective cohort study, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, Aged, medicine.diagnostic_test, infective endocarditis, business.industry, Endocarditis, Bacterial, General Medicine, Middle Aged, Staphylococcal Infections, respiratory system, medicine.disease, mortality, 3. Good health, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Infectious Diseases, Quartile, Blood Culture, Infective endocarditis, Female, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: International audience; Objectives - Time to blood culture positivity (TTP), a routinely available parameter in automated blood culture systems, may be a proxy for infectious burden in patients with bloodstream infections. We aimed to study the association between TTP and infective endocarditis (IE), or death, in patients with Staphylococcus aureus bacteraemia. Methods - VIRSTA is a multicenter prospective cohort study that included all adult patients with S. aureus bacteraemia in eight university hospitals in France (2009-2011). We analyzed data from four centers which collected data on TTP. Regression models were used to study the association between TTP and definite IE (Duke-Li criteria), and 30 day-mortality. Results - We included 587 patients with S. aureus bacteraemia: mean age was 65.3±16.3 years, 420/587 patients (71.6%) were male, 121/587 (20.6%) died, and 42/587 (7.2%) had definite IE. Median TTP of first positive blood culture was 13.7 h (interquartile range, 9.9-18). On multivariate analysis, 30-day mortality was associated with TTP≤13.7 h (74/295 (25.1%) vs 47/292 (16.1%), P=0.02), as well as old age, McCabe score, methicillin resistance, stroke, pneumonia, and C-Reactive Protein. TTP was also independently associated with IE, but with a U-shape curve: IE was more common in the first (TTP18 h, 8/146, 5.5%) quartiles of TTP, P=0.002. Conclusions - TTP provides reliable information in patients with S. aureus bacteraemia, on the risk of IE, and prognosis, with short TTP being an independent predictor of death. This data readily available at no cost may be used to identify patients who require specific attention.
Published: 2019

6. Modelling continuum intensity perturbations caused by solar acoustic oscillations

Author: Damien Fournier, N. M. Kostogryz, and Laurent Gizon
Subjects: Source function, Physics, Standard solar model, Opacity, 010308 nuclear & particles physics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Displacement (vector), Computational physics, Intensity (physics), Amplitude, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, Space and Planetary Science, 0103 physical sciences, Radiative transfer, Astrophysics::Solar and Stellar Astrophysics, Helioseismology, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: Helioseismology is the study of the solar interior using observations of oscillations at the surface. It suffers from systematic errors, such as a center-to-limb error in travel-time measurements. Understanding these errors requires a good understanding of the nontrivial relationship between wave displacement and helioseismic observables. The wave displacement causes perturbations in the atmospheric thermodynamical quantities which perturb the opacity, the optical depth, the source function, and the local ray geometry, thus affecting the emergent intensity. We aim to establish the most complete relationship up to now between the displacement and the intensity perturbation by solving the radiative transfer problem in the atmosphere. We derive an expression for the intensity perturbation caused by acoustic oscillations at any point on the solar disk by applying the first-order perturbation theory. As input, we consider adiabatic modes of oscillation of different degrees. The background and the perturbed intensities are computed considering the main sources of opacity in the continuum. We find that, for all modes, the perturbations to the thermodynamical quantities are not sufficient to model the intensity. In addition, the geometrical effects due to the displacement must be taken into account as they lead to a difference in amplitude and a phase shift between the temperature at the surface and intensity perturbations. The closer to the limb, the larger the differences. This work presents improvements for the computation of the intensity perturbations, in particular for high-degree modes, and explains differences in intensity computations in earlier works. The phase shifts and amplitude differences between the temperature and intensity perturbations increase towards the limb. This should help to interpret some of the systematic center-to-limb effects observed in local helioseismology., Comment: 11 pages, 7 figures, Accepted to A&A
Published: 2021
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7. Categorization of temocillin susceptibility using the disc diffusion method: Susceptible, Intermediate, Resistant or Undetermined?

Author: Amandine HENRY, Anthony Michaud, Nicolas Degand, Emmanuelle Bille, Damien Fournier, Agathe Capitaine, Cecile Le Brun, Julie Lourtet-Hascoët, Thomas Guillard, Stéphane Corvec, Chloé Plouzeau-Jayle, Elena Guillotel, and Eric Farfour
Abstract: Background: Since the pandemic of ESBL (extended-spectrum beta-lactamases) and the emergence of carbapenemase-producing Enterobacterales there is a renewed interest in temocillin. However, as the molecule was little used, except in Belgium and UK, there are few guidelines for its antibiotic susceptibility testing (AST). We aim to assess the accuracy of the disc diffusion method (DDM) for temocillin susceptibility testing. Methods: Eight hundred eighty-eight Enterobacterales clinical strains of which 61.7% were resistant to 3 rd generation cephalosporin (3GC-R) were included. AST was performed using DDM in comparison to gradient strip tests (GST) and interpreted using the diameter breakpoint of 20mm and MIC breakpoint of 8 mg/L for DDM and GST as recommended by EUCAST-CASFM recommandations. Results: At breakpoint of 8mg/L, temocillin rates of susceptibility were 76.9%, 95.6% and 67.7% for overall, 3GC-S and 3GC-R strains respectively. Ninety-four (10.6%) discrepancies were noticed including 68 (72.3%) major errors and 26 (27.6%) very major errors. Sixty-eight (72.3%) of all errors correspond to inhibition diameters comprised between 17 and 23 mm. The presence of colonies within the inhibition diameter was noticed for 32 (5.3%) strains susceptible to temocillin. Conclusions: DDM lacks accuracy for strains displaying borderline inhibition zone diameter. We suggest applying the concept of area of technical uncertainty (ATU) for standard DDM. The strains displaying a diameter within the ATU should be tested by another method. The significance of colonies within the inhibition zone diameter should be explored.
Published: 2020

8. Meridional flow in the Sun’s convection zone is a single cell in each hemisphere

Author: Robert H. Cameron, Damien Fournier, Aaron C. Birch, Zhi-Chao Liang, Laurent Gizon, Chris S. Hanson, and Majid Pourabdian
Subjects: Sunspot, Multidisciplinary, 010504 meteorology & atmospheric sciences, Equator, Geophysics, 01 natural sciences, Latitude, Solar cycle, Convection zone, 13. Climate action, Meridional flow, 0103 physical sciences, Helioseismology, 010303 astronomy & astrophysics, Geology, 0105 earth and related environmental sciences, Dynamo
Abstract: The flow of plasma inside the SunThe activity of the Sun, including the occurrence of sunspots, is driven by magnetic fields that originate from the motion of charged plasma beneath the surface. Helioseismology uses acoustic oscillations to probe the Sun's interior, analogous to seismology's use of earthquakes to investigate Earth's interior. Gizonet al.analyzed helioseismology data from 1996 to 2019, covering two 11-year solar cycles. They measured the latitudinal and radial flow of plasma as a function of depth within the Sun and how it varies with time. The results support magnetic flux-transport dynamo models, which can explain the distribution of sunspots over each solar cycle.Science, this issue p.1469
Published: 2020
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9. Acoustic wave propagation through solar granulation: Validity of effective-medium theories, coda waves

Author: Damien Fournier, Laurent Gizon, Thomas Duvall, and Paul-Louis Poulier
Subjects: Physics, Field (physics), 010308 nuclear & particles physics, Scattering, Wave packet, Attenuation, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Acoustic wave, Eigenfunction, Computational Physics (physics.comp-ph), 01 natural sciences, Computational physics, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, 0103 physical sciences, Helioseismology, Born approximation, Physics - Computational Physics, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: Context. The frequencies, lifetimes, and eigenfunctions of solar acoustic waves are affected by turbulent convection, which is random in space and in time. Since the correlation time of solar granulation and the periods of acoustic waves ($\sim$5 min) are similar, the medium in which the waves propagate cannot a priori be assumed to be time independent. Aims. We compare various effective-medium solutions with numerical solutions in order to identify the approximations that can be used in helioseismology. For the sake of simplicity, the medium is one dimensional. Methods. We consider the Keller approximation, the second-order Born approximation, and spatial homogenization to obtain theoretical values for the effective wave speed and attenuation (averaged over the realizations of the medium). Numerically, we computed the first and second statistical moments of the wave field over many thousands of realizations of the medium (finite-amplitude sound-speed perturbations are limited to a 30 Mm band and have a zero mean). Results. The effective wave speed is reduced for both the theories and the simulations. The attenuation of the coherent wave field and the wave speed are best described by the Keller theory. The numerical simulations reveal the presence of coda waves, trailing the coherent wave packet. These late arrival waves are due to multiple scattering and are easily seen in the second moment of the wave field. Conclusions. We find that the effective wave speed can be calculated, numerically and theoretically, using a single snapshot of the random medium (frozen medium); however, the attenuation is underestimated in the frozen medium compared to the time-dependent medium. Multiple scattering cannot be ignored when modeling acoustic wave propagation through solar granulation., Comment: 13 pages, 16 figures, to be published in A&A
Published: 2020
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10. Acquisition of class C β-lactamase PAC-1 by ST664 strains of

Author: Maxime, Bour, Damien, Fournier, Thomas, Jové, Armelle, Pouzol, Guillaume, Miltgen, Frédéric, Janvier, Katy, Jeannot, and Patrick, Plésiat
Subjects: Mechanisms of Resistance, humanities
Abstract: Four sequence type 664 (ST664) (serotype O:5) strains of Pseudomonas aeruginosa that were highly resistant to antibiotics, including ceftolozane-tazobactam and ceftazidime-avibactam, but were susceptible to colistin were found to harbor the gene encoding the rare class C β-lactamase PAC-1 on a chromosomally located Tn1721-like transposon. The bla(PAC-1) gene was associated with the 16S rRNA methylase determinant rmtF2, which confers pan-aminoglycoside resistance. These genotypically related strains were isolated in repatriated patients from Mauritius and Afghanistan and were close to a lineage reported in Nepal, Pakistan, and India.
Published: 2019

11. Effect of latitudinal differential rotation on solar Rossby waves: Critical layers, eigenfunctions, and momentum fluxes in the equatorialβplane

Author: Damien Fournier, M. Albekioni, and Laurent Gizon
Subjects: Physics, Angular momentum, 010504 meteorology & atmospheric sciences, Computer Science::Information Retrieval, Rossby wave, Astronomy and Astrophysics, Astrophysics, Vorticity, 01 natural sciences, Physics::Fluid Dynamics, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, Space and Planetary Science, Quantum electrodynamics, Dispersion relation, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Wavenumber, Solar rotation, Differential rotation, Astrophysics::Earth and Planetary Astrophysics, Phase velocity, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences
Abstract: Retrograde-propagating waves of vertical vorticity with longitudinal wavenumbers between 3 and 15 have been observed on the Sun with a dispersion relation close to that of classical sectoral Rossby waves. The observed vorticity eigenfunctions are symmetric in latitude, peak at the equator, switch sign near $20^\circ$-$30^\circ$, and decrease at higher latitudes. We search for an explanation that takes into account solar latitudinal differential rotation. In the equatorial $\beta$ plane, we study the propagation of linear Rossby waves (phase speed $c, Comment: Submitted to Astron. Astrophys. on 29 May 2020
Published: 2020

12. Predicting frequency changes of global-scale solar Rossby modes due to solar cycle changes in internal rotation

Author: Aaron C. Birch, Christopher R. Goddard, Damien Fournier, and Laurent Gizon
Subjects: Physics, 010504 meteorology & atmospheric sciences, Mode (statistics), FOS: Physical sciences, Astronomy and Astrophysics, Context (language use), Scale (descriptive set theory), Astrophysics, Rotation, 01 natural sciences, Solar cycle, Computational physics, Azimuth, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, 0103 physical sciences, Solar rotation, Perturbation theory, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), 0105 earth and related environmental sciences
Abstract: Context. Large-scale equatorial Rossby modes have been observed on the Sun over the last two solar cycles. Aims. We investigate the impact of the time-varying zonal flows on the frequencies of Rossby modes. Methods. A first-order perturbation theory approach is used to obtain an expression for the expected shift in the mode frequencies due to perturbations in the internal rotation rate. Results. Using the time-varying rotation from helioseismic inversions we predict the changes in Rossby mode frequencies with azimuthal orders from m = 1 to m = 15 over the last two solar cycles. The peak-to-peak frequency change is less than 1 nHz for the m = 1 mode, grows with m, and reaches 25 nHz for m = 15. Conclusions. Given the observational uncertainties on mode frequencies due to the finite mode lifetimes, we find that the predicted frequency shifts are near the limit of detectability.
Published: 2020

13. Risk of midline catheter-related bloodstream infections in medical and surgical patients. A monocentric prospective study

Author: ROUDAUD FLORIAN and Damien Fournier
Published: 2018

14. Atmospheric radiation boundary conditions for high frequency waves in time-distance helioseismology

Author: Damien Fournier, Michael Leguèbe, Laurent Gizon, Chris S. Hanson, Marc Duruflé, Hélène Barucq, Juliette Chabassier, Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Max-Planck-Gesellschaft, Institut für Astrophysik [Göttingen], Georg-August-University = Georg-August-Universität Göttingen, New York University [Abu Dhabi], NYU System (NYU), Advanced 3D Numerical Modeling in Geophysics (Magique 3D), Laboratoire de Mathématiques et de leurs Applications [Pau] (LMAP), Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS)-Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS)-Inria Bordeaux - Sud-Ouest, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université de Pau et des Pays de l'Adour (UPPA), Institut de Mathématiques de Bordeaux (IMB), Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1 (UB)-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS), Max-Planck-Institut für Sonnensystemforschung (MPS), Georg-August-University [Göttingen], and Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1-Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux (Bordeaux INP)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Photosphere, Covariance function, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Atmospheric model, [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], 01 natural sciences, Seismic wave, Computational physics, 010101 applied mathematics, Spherical geometry, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, Space and Planetary Science, 0103 physical sciences, Radiative transfer, Astrophysics::Solar and Stellar Astrophysics, Boundary value problem, Helioseismology, Astrophysics::Earth and Planetary Astrophysics, 0101 mathematics, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: International audience; The temporal covariance between seismic waves measured at two locations on the solar surface is the fundamental observable in time-distance helioseismology. Above the acoustic cutoff frequency (∼5.3 mHz), waves are not trapped in the solar interior and the covariance function can be used to probe the upper atmosphere. We wish to implement appropriate radiative boundary conditions for computing the propagation of high-frequency waves in the solar atmosphere. We consider the radiative boundary conditions recently developed by Barucq et al. (2017) for atmospheres in which sound-speed is constant and density decreases exponentially with radius. We compute the cross-covariance function using a finite element method in spherical geometry and in the frequency domain. The ratio between first-and second-skip amplitudes in the time-distance diagram is used as a diagnostic to compare boundary conditions and to compare with observations. We find that a boundary condition applied 500 km above the photosphere and derived under the approximation of small angles of incidence accurately reproduces the 'infinite atmosphere' solution for high-frequency waves. When the radiative boundary condition is applied 2 Mm above the photosphere, we find that the choice of atmospheric model affects the time-distance diagram. In particular, the time-distance diagram exhibits double-ridge structure when using a VAL atmospheric model.
Published: 2017
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15. Discontinuous Galerkin Discretization and $hp$-Refinement for the Resolution of the Neutron Transport Equation

Author: R. Le Tellier, Damien Fournier, Raphaèle Herbin, Laboratoire d'Analyse, Topologie, Probabilités (LATP), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etudes de Physique (LEPH), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Subjects: Neutron transport, nuclear core, Finite volume method, Discretization, Applied Mathematics, Scalar (mathematics), Mathematical analysis, Estimator, 010103 numerical & computational mathematics, 7. Clean energy, 01 natural sciences, 010101 applied mathematics, Computational Mathematics, error estimates, Discontinuous Galerkin method, transport equation, hp−refinement, Polygon mesh, 65N30 (65N50 82D75), 0101 mathematics, Convection–diffusion equation, finite volume, [MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA], discontinuous Galerkin, Mathematics
Abstract: International audience; This paper presents a hp−refinement method for a first order scalar transport- reaction equation discretized by a discontinuous Galerkin method. First, the theoretical rates of convergence of h− and p−refinement are recalled and numerically tested. Then, in order to design some meshes, we propose two different estimators of the local error on the spatial domain. These quantities are analysed and compared depending on the regularity of the solution so as to find the best way to lead the refinement process and the best strategy to choose between h− and p−refinement. Finally, the different possible refinement strategies are compared first on analytical examples and then on realistic applications for neutron transport in a nuclear reactor core.
Published: 2013

16. Clinical features and prognostic factors of listeriosis: the MONALISA national prospective cohort study

Author: Odile Fremin-Batteux, Juliette Clarissou-Philippe, Benoît Jauhlac, Severine Guyetand, Jacques Gasnault, Corinne Haioun, Liamine Aissaoui, Marie-Christine Pages, Marie-Pierre Fos, Christian Rose, Didier Hubert, Marie-Rose Rothe, N. Bouziges, Benoît Huc, François Devianne, Sabine Bidart, Anne Forest, Kevin Bertrand, Mohamed Eldeghedy, Annick Verhaeghe, Caroline Malderet, Anne Bertrou, Bernard Guerquin, Catherine Duche, Muriel Archambaud, Rabea Cotteret, Olivier Toullalan, Yves Devaux, Smail Bergheul, Valérie Sivadon-Tardy, Pierre-Gilles Merville, Geneviève Blanchard-Marche, Didier Raoult, Bernard Hory, Florence Richardin, Evelyne Belle, Mohamed Menouar, K Guitteaud, Mohamad Mohty, Ambroise Montcriol, Max Laurin, Aurélia Picard, Jean-Paul Mira, Marie-Charlotte Chopin, Richard Bonnet, Michel Wolff, Sébastien Maillez, Jeanne Maugein, Véronique Leblond, Nicola Walid, Bernard Gauche, Mathieu Evillard, Hassen Jeddi, Anne Bourlet, Isabelle Grawey, Thierry Jault, Sandrine Hiret, Valerie Gaborieau, Véronique Boin-Gay, An Kim, Thierry Constans, Jean-François Gaide, Martine Giraud, Eric Meaudre Desgouttes, Alain Fur, Abdallah Maakaroun, Olivier Matray, Bertrand Maubert, Frédérique Péchinot, Aurelie Garbi, Claire Delbrouck, Benoît Grandclerc, Vincent Cadiergue, Hervé Lécuyer, Bernadette Grignon, Thierry Bensaid, Nicole Constantin, Yannick Chevalier, Hassène Rahmani, Thierry Levent, Joelle Desliers, Florence Van de Velde, Xavier Adhoute, Clara Andriau, Christophe Charasse, Rémi Vatan, Benoît Martha, Alain Lecis, Didier Albert, Romain Jacobs, Hélène Lefranc, Christian Martin, Nasseur Rezgui, Bertrand Pigeon, Catherine Le Henaff, Dominique Cassignard, Françoise Cotes, Eric Pujade Lauraine, Jean-François Gattault, Nicole Ferreira-Maident, Noémie Jourde-Chiche, Hélène Garrec, Olivier Darchen, Carole Schwebel, Marie-Christine Bezian, Patrick Daoud, Tsouria Becaid, Simone Laluque, David Broche, Christine Boisselier, Pascale Martres, Sarah Hammami, Brigitte Olivier, Jean-Marie Nkunzimana, Eric Monlun, Isabelle Marterl-Lafay, Marion Carboni, Marie-Françoise Mattei, Sandrine Castelin, Isabelle Barillot, Marie-Noelle Cufi, Thomas Kaiser, Catherine Herry, Pascal Hutin, Jean-Pierre Bronowicki, Bernard Branger, Pierre Thomas, Elie Zagdoun, Anne Goquelin, Ziad Assaf, Ingrid Croquet, Bruno Pozzetto, Thomas Similowski, Anne-Isabelle Briere, Marie-Thérèse Albertini, Mariam Blaka, Christelle Tassot, Anne Gaschet, Jean-Philippe Lavigne, Antoine Pujol, Philippe Colombat, Edouard Devaud, Hana Talabani-Boizot, François Barière, Anne-Marie Cordier, Philippe Gueudet, Georges Simon, Anne-Sophie Lipovac, Françoise Bandaly, Anne Beauplet-Lepage, Sylvie Prince, Charlotte Jouzel, Jean-Luc Deboutin, Patrick Zavadil, Louis Puybasset, Marie-Cécile Petit, Loïc Guillevin, Kamel Touati, Christophe Ntalu Nkato, Sylvie Carette, Jacques Vaucel, Chantal Delasalle, Marine Gross Goupil, Laurent Gutmann, Christiane Payen, Annick Barboteau, Firouzé Bani-Sadr, Christophe Legendre, Philippe Roulier, Elie Azria, Ibrahim Farah, Isabelle Rouquette-Vincent, Anne-Sophie Erena-Penet, Philippe Labadie, Eric Josien, Aicha Derragui, Mathieu Legrand, Odile Beyne-Rauzy, Jean-Marc Nabholtz, Marie-Joelle Demarcq, Olivier Garosi, Michel Deiber, Fabrice Chaix, Bertrand Souweine, Anne Collignon, Gisèle Renard, Mickael Jego, Gilles Bernardin, Anne Allart, Jocelyn Barrier, Marc Vasse, Philippe Ménager, Marc Wurmser, Abderkader Ouazir, Olivier Gontieron, Yvon Berland, Sébastien Trouiller, David Leysenne, Christophe Ozanon, Fanny Autret, Tahar Saghi, Loïc Dopeux, Sophie Benoit-Coustou, T. Fraisse, Christine Maillard, Karine Nikodijevic, Georges Kaltenbach, Angéline Jamet, Philippe Aucher, Julie Bottero, Marie-Claude Piffaut, Marianne Besnard, Florence Courillon, Marie Bonfils, Christine Ghevaert, Marie Destors, Eliette Jeanmaire, Franck Zerbib, Manuel-Luis Gameiro, T Prazuck, Laurent Mandin, Olivier Guisset, Marguerite Fines, Toufik Feddal, Agnès Jouffret, Louis Mesnard, Thomas Bourrée, Hasinrina Razafimahefa, Sylvestre Tigaud, Vincent Estève, Philippe Malherbe, Jean-Michel Salord, Pascal Adam, Bertrand Rozec, Michel Fuillet, Olivier Lemenand, Denis Quinsat, Ana Danalaché, Véronique Vialette, François Brosset, Patrick Messner Pellenc, Nicolas Heisel, Edouard Girard, Régine Martin, Olivier Garesslin, Catherine Mille, Alexandre Gascon, Marc Nicolino, Laurence Mouly, Claire Fabre, Bénédicte Ponceau, Marie-Etiennette Emeriau, Pascal Cathebras, Bérangère Bernardaud, Michèle Pérouse de Montclos, O. Arsene, Karine Grenet, Yazdan Yazdanpanah, Sten De Witte, Anne Scemla, Laurence Bouillet, Christophe Burucoa, Vincent Loffeier, Séverine Visentin, Luc Desfrere, Miloud Arabi, Frédérique Costa, Sylvie Lechat, Ali Chekroun, Raymond Ruimy, Marie, Jérôme Bizet, Xavier Nassif, Baihas Dib, Patrick Bert-Marcaz, Laurent Martin Lefèvre, Nicholas Sedillot, Blandine Cattier, Emilie Boidin, Daniel Sondag, Aude Bourrouillou, Alain Noirot, Franck Desemerie, Fréderic Heluwaert, Catherine Tamalet, Marc G. Berger, Jean-Daniel Lelièvre, Dominique Perotin, Abdelkader Bemrah, Alain Lozniewski, Bernard Borstein, Hanna Eid, Diana Suatean, Virginie Mignaut, Jean-Claude N'guyen, Valérie Le Goff, Laurent Teillet, Christophe Rolland, Gwenaël Alfonsi, Florence Lachenal, Philippe Bossi, Yves Botreau, Florence Doucet Populaire, Henry Jardel, Nicolas Gallo, Elias Jabre-Sikias, Michel Dupon, Hélène Brihier, Isabelle Patry, Alexandre Leclercq, Bernadette Tourrand, Christophe Roussel, Jean-Emmanuel Kurtz, Bénédicte Paindaveine, Simon Elhadad, Richard Sanchez, Eric Sgro, Pierre Berger, Valérie Murbach, Anne Holstein, Florence Martin, Taoufik Merabet, Amélie Benbara, Milagros Ferreyra, Laure Esposito, Pierre Delobel, Antoine Andremont, Marc Bourlière, Carole-Anne Boudy, Jean-Baptiste Gaulthier, Laurent Tacchini, Olivier Marpeau, Sonia Tesseydre, Marie-Pierre Coulhon, Nathalie Hodee, Marie-Chrsitine Conroy, Pierre Weinbreck, Roland Leclercq, Laurent Souply, Christian Bidault, Annie Elbez, Marie-Annick Lebreton, Patrick Brisou, Agnès Ferroni, Jean-Louis Pourriat, Nadia Anguel, Christian Noel, Philippe Jouvencel, Eric Pichard, Xavier Martin, Mathieu Coste, Pierre Zuber, Catherine Neuwirth, Jean-Pierre Hacot, Paul Aye, Jérôme Guinard, Yves Pean, Jean-Christophe Dengo, Fabrice Petassou, Didier Viole, Thierry Messiaen, Jean Beytout, Philippe Petitjean, Ferdinand Savare, Patrice Cuvillier, Sophie Coignard, Hélène Anglaret, Nassim Kamar, Elisabeth Chachaty, Karine Guimard, Louis Braem, Hacene Fezoui, Pierre Martin, Jean-Paul Viard, Claire Larroche, Nicolai Claudiu-Plesa, Thierry Benoit-Cattin, Olivier Moquet, Thierry Pasdeloup, David Rosay, Rodolphe Jean, Jean-Bernard Mariette, Marc Debouverie, Hervé Peltier, Mustapha Terki, Jacques Daleas, Valérie Dattin-Dorrière, Michel Vergnaud, Emmanuel Grimprel, Sylvène Rosselli, Jean-Marc Didier, Pierre Faurie, Luc Frimat, Aziza Mandjee, Sabine Etchemendy, Pierre Tissières, Jean Nakhleh, Sylvie Mariette, Christian Perronne, Bruno Carbonne, Nathalie Houssiaux-Maisonneuve, Tristan Ferry, S Beague, Anthony Sebban, Marie-Thérèse Hili, Jean-Michel De Kermadec, Lucien Brasme, Gilles Blaison, Caroline Garandeau, Jean-Pierre Sollet, Laurent Tronchon, Thierry Samson, Julien Gesquière, Nicolas Ettahar, Alain Créange, Etienne Laurens, Véronique Equy, Fréderic Bart, Bernard Bouffandeau, Christine Vaillant, Valerie Pesque, Jean-Marc Lalot, Marc Levy, Michel Kaidomar, Mihaela Saplacan, Sterenn Yvenou, Marie-Isabelle Steibach, Emmanuelle Cambau, Agnès Riche, François Fourrier, François Raffi, Mélissa Lalu, Henri Bérard, Danielle Clave, Jean-Claude Mouries, Martine Porcheron, Jean Cabalion, Richard Lamarca, Nathalie Canu, Jean-Baptiste Roseau, Annabelle Stoclin, Luca Luminitan Elena Lupean, Rémi Gebeile, Celia Salanoubat, Carole Marmouset, Pierre Bigot, Anne-Laure Breton, Pierre Kalfon, Colette Vincent, Sophie Marty, Olivier Tandonnet, Alexis Redor, Xavier Valette, Ourida Aoudia, Jacques-Arnaud Seyrig, Bertrand Beaune, Hugues Aumaitre, Georges Pinon, Yann Leveneur, Sylvie Charachon, Raoul Herbrecht, Henriette de Valk, Gary David, Julien Pouyanne, Marc Dommergues, Majed Al Chaar, Véronique Blanc-Amrane, Pascale Guillarmé Grossmann, Bruno Abraham, Yves Morel, Philippe Suel, Denis Sautereau, Olivier Guilloy, Tu Anh Tran, Frédéric Laurent, Zahir Amoura, Jacques-Olivier Bay, Zoubida Elharie-Heraux, Joyce Sibony-Prat, Bernard Guillois, Dominique Rohmer-Heitz, Audrey Barrelet, Jérémie Courouble, Jean-Paul Herry, Daniel Vittecoq, Annie Vermesch-Langlin, Jean Auroux, Claude Aubert, Thierry Harvey, Ghislaine Lamoine-Gimet, J. Riahi, Florence Soraudeau, Bachar Al-Jalaby, Caroline Périsson, Khélifa Ayouz, Florence Cardot, François Maillet, Alain Goux, Théophile Magna, Bertille de Barbeyrac, Adrien May, Dominique Andreotti, Olivier Jonquet, Hélène Dumouchel, Didier Thibaud, Philippe Morlat, Pascal Chevalet, Pascal Ancelin, Guy Chambreuil, Cécile Le Boterff, Anne Ceriez, Olivier Detante, B Pangon, Claude C.A. Bernard, Vincent Cailleaux Pierre-Etienne Cailleux, Jordi Miatello, Pierre-Yves le Berruyer, Sylvain Kouaho, Michel Briaud, Hélène Delaby, Patrick Herbecq, Christine Segonds, Véronique Jault, Pascale Brunel, Christine Dussopt, Jean Thore, Jean-Marc Thouret, Jean-Marc Kerleau, François Le Baron, Slavius Matica, Sophie Leautez-Nainville, Matthieu Pecquet, Laurent Bret, Yacine Sedjelmaci, Pierre Metton, Habiboulaye Diallo, Jany Rey Zermati, Arnaud Delahaye, Hélène Chaussade, Laurent Mandelbrot, Emilie Bessede, Olivier Casanovas, Paul Pierrot, Annick Legras, Dominique Lauque, Hélène Gatti, Jean Catineau, Ebutu Likose, Gilles Capellier, Eric Kibbrecht, Freddy Thibaut, Patrick Valadier, Chantal Lemble, Joël Gaudelus, Joelle Mellier, Joëlle Brochen, Emmanuel Gascou, Stéphane Bonacorsi, Stéphanie Bannier, Bruno Fantin, Didier Raffenot, Valérie Revel, Hakim Amroun, Huguette Negrery, Anne-Laure Fauchais, Paul Mercury, Michel Chuzeville, Christian Zumbo, Nicolas Després, Pascal Roblot, Jérôme Pasche, Jean Claude Boufetteau, Jocelyne Caillon, Julien Boileau, V. Rabier, Benjamin Manéglier, Emilie Jourdes, Franck Ceppa, Christine Recule, Nicolas Degand, Benoît Henry, Thierry Baranger, Dominique Pateron, Agnès Pélaquier, Gérard Bouchet, Hélène Fiette, Ozel Guiden, Dana Ranta, Etienne Ruppé, Nabil Chiouk, Jacques Breuil, Dominique Leduc, Véronique Loustaud, Hervé Métenier, Michel Durand, Isabelle Mahé, Leila Karaoui, Marie-José Collus, Mehran Monchi, Olivier Belmonte, Romain Blondet, Jacques Thierry, Karine Humbert, Gilles Salama, Marie-Noelle Heurtaux, Cécile Goujard, Bruno Sivery, Martial Boisseau, Redouane Dahoumane, Pierre Delour, Christian Niels Meyer, Anne Faudon-Gibelin, Gérard Poulain, Roger-Charles Luciani, J.-C. Souquet, Olivier Grossi, François Vandenesch, Sylvain Mermont, Jacques Bronner, Sonia Dahan, Paul Marzouk, Pascal Pouedras, Noureddine Djafari, François-Xavier Caroli-Bosc, Jean-François Dessin, Brigitte Gruffat, Armelle Morin-Fatome, Sylvie Thoinet, Bano Konate, Jean-Winoc Decousser, Claire Poyart, Patrick Plessis, Olivier Millet, Vincent Cattoir, Françoise Geffroy, Manica Vasseur, Pierre Carli, Isabelle Citony, Christian Richard, Nicolas Sigur, Patrick Marthelet, Luwawu Mbimba, Pierre Feugier, Philippe Sauder, Hama Djerad, Evelyne Bourgerette, Hanen Chahtour, Adrien Lemaignen, Dominique Bechade, Patrick Ochocki, Antoine Vieillard Baron, Dominique Astruc, Marie-Pierre Moiton, Nicolas Dubois, Sylvie Ledru, Corinne Seknazi, Hélène Poupet, Jean-Philippe Brieux, Gérard Barthélémy, Aihem Yehia, Louis-Jean Couderc, Ahmed, Françoise Rigaux, Yohann N'guyen, Philippe Bethery, Damien Corberand, Etienne Auvray, Paul-Louis Woerther, Christian Combe, Sophie Delesalle, Jean-Marie Piala, Faraj Al Freijat, Philippe Juvin, Malcolm Lemyze, Hyacine Rey, Claire Larible, Noel Milpied, Lémia Zgarni, Julia Gaillard, Agnès Juven, Paola Otean, Adrien Melis, André Pechinot, Olivier Bouchaud, Olivier Chassin, Pierre Hausfater, Asma Trabelsi-Jnifen, Vincent Grobost, Didier Lemery, Pierre Soury, Françoise Brevet, Jacques Tankovic, Dominique Sansot, Jean Louis Salomon, Charlotte Cordonnier, Brigitte Lamy, Antoine Maisonneuve, Dominique Pressac, Claude Rémy, Rodolphe Sobesky, Stéphanie Cognet, Pierre Cougoul, Didier Jan, Dominique Perrotin, Cécile Hombrouk-Alet, Thierry André, Gilbert Pochmalicki, Serge Girard, Vincent Zerr, Guillaume Cadiot, Claudine Lasbasses, Michel Slama, Abderrazak El Yamani, Sophie Brovedani, Jean Armengaud, Romain Hernu, Géraldine Mascade, Aurélien Lorléa'ch, Ali Akkari, Mathieu Tourdjman, Christopher Payan, Eric Jullian, Nathalie Fonsale, Frédéric Riehl, Paul Strock, Geneviève Grise, Philippe Mottaz, Christian Floriot, Marie-Noëlle Ungeheuer, Denis Caillot, Arnaud Chalvon-Demersay, Catherine Branger, Stanislas Bruley des Varannes, Marc Paccalin, Marie-Pierre Danjean, Alexandre Mebazaa, Xavier Brunet, Roland De Varax, Laurence Delhoustal, Sophie Haro, Bruno Chabanon-Pouget, Isabelle Goidin, Dominique Chudersky, Corinne Costes, Delphine Chatellier, Maud Gelez, Damien Dassant, Pascal Joly, Jean-Michel Arnal, Zakaria Hamitou, Philippe Rondepierre, Carole Pignon, Valérie Crombe, Amanda Lopes, Chrystelle Kemenar, Olivia Raulin, Anne-Cécile Hochart, Sandrine Gérart Pons, Valérie Zeller, Guillermo Reyes Ortega, Mathilde Guérin, Audrey Migraine Bouvagnet, Florence Eboue, Isabelle Loury-Lariviere, Sophie Leotard, Suzanne Lima, Marie Kassis, Jean-Luc Donay, Jean-Pierre Audié, Guillaume Cartron, Arnaud Ribier, Fanny Buron, Mirela Tuca, Marius Semenescu, Arnaud Serre, Vincent Quentin, Denise Bouyssou-Destriau, Violaine Bresson, Christine Chandesris Joséphine Chapalain-Cagnon, Eric Cua, Henri Courtade, François Bénézit, Sébastien Lamache, Philippe Bonnefoy, Francis Schneider, Richard Monarchi, Adeline Schendel, Paramasiven Mootien, Ghislaine Gardes, Pierre-François Westeel, Jean-François Magny, François Caron, Jocelyn Michon, Didier Eyer, Isabelle Ronda, Pierre-Yves Robillard, Frédéric Renou, Anna Faucher, Jean-Robert Harlé, Anne Debernardi, Grégory Akerman, Benoît Fontenel, Pierre Hourdebaigt-Larrusse, Marie-Noëlle Adam, Aude Lessene, Abdelkader Hrichi, François Blot, Athéna Le Pierres, Romain Lemarie, Françoise Granier, Véronique Tardy, Marc Gatfosse, Pierre-Marie Roger, François Goupil, Saïd Aberrane, Franck Bernardi, Isabelle Plantier, Nathalie Funakoshi, Jean-Gilles Delecalle, Patricia Barbut, Jacques Reynes, Christophe Roy, Sophie Perreve, Michel Garre, David Ribes, Cyrille Ede, Jean-Claude Dausset, Francis Duchene, Jean Caussin, Michelle Becker-Schneider, Gilles Berthelot, Damien Dupont, Jean-Michel Gillot, Aurélie Messager, Jean-Marie Pannecouck, Jean-Christian Roussel, Alain Reynaud, Sylvie Cariou, Anne Dao, François Guillemot, Martin Martinot, Patrick Casali, Anne-Sophie Poirier, Aissa Kerchache, Necera Sakek, Eric Porthault, Christophe Decoene, Chantal Ache-Papillon, Brigitte Bicais, Jean-Claude Feugier, Thierry Masseron, Charles Marty-Ane, Daniele Goldgran Toledano, Jean-Christophe Dubus, Damien du Cheyron, Dominique Decré, Jean-Loup Pennaforte, Ahmed Tigaizin, Bernard Vache, Eric Oswald, Claire Moulinoux, Anne-Christine Jaouen, Caroline Charlier, Anne-Laure Virlouvet, Ali Kara, Jean-Luc Sicsic, Sylvie Goffart, Mathieu Zuber, Claudine Fèbre, Olivier Lortholary, Mathieu Dupont, Annie Vessieres, Thierry Helvadjian, Thomas Signouret, Cedric Daupin, Sandrine Essouri, Jean-Louis Jacob, Pascal Boileau, Caroline Blazejewski, Quentin Lepiller, Juan-Pablo Maureira, Eddy Lebas, Christophe Deschamps, Amévi Ananivi, Clovis Foguem, Daniel Adoue, Abdourahim Chamouine, Alain Michault, Bruno Guérin, Olivier Baud, Clara Vinci, Thierry Weitten, Jean-Marc Eychene, Marie Froidure, Julien Obiols, Patricia Roussellier, Marc Lecuit, André Cabié, Saskia Foucart, Karim Belhadj, Michel Cingotti, Bruno Dumoulard, Jean Puyhardy, Etienne Danquechin Dorval, Lucile Mendes-Martin, Enrique Casalino, Luc Jarrige, Fabien Lambiotte, Philippe Masson, Mohammed Mansouria, Pierre Thouvenot, Katy Jeannot, Martine Nyunga, Valérie Macci, Florent Masia, Claire Briere de la Hosseraye, Wassila Anteur, André Sommabère, Marie-Claude Germain, Isabelle Arnault, Bernard Carbonelle, Philippe Devos, Daniel Protar, Tiphaine Gaillart, Ludovic Lassel, Laurence Hamou-Plotkine, David Trystram, Thierry Bureau, Olivier Collard, Fanny Vuotto, Sophie Malhiere, Frederique Canis, Gillles Plainfosse, Catherine Lechiche, Bertrand Lassere, Martine Chouraqui, Jean Baptiste Michot, Fethi Radhouane-Khanjari, Carole Barbier, Pascal Bonitchi, Abdelaziz Benkhelil, Odile Salmon, Laurent Damaj Gandhi, Bertrand Minguet, Michel Wagner, Odile Falguières, Zahr-Eddine Ali Chaouche, Eric Zaoui, Isabelle Guichard, Bernard Huttin, Apollinaire Karirisi, Gaël Cinquetti, Christophe Plane, Lionel Rostaing, Yanne Henry-Andrieu, Daniel Re, Virginie Verrier, Pascal Bolot, Michel De Biasi, Laurence Vrigneaud, Mathilde Turpin, Marie-Claude Demachy, Etienne Roussel, Michèle Blancs, Olivier Join-Lambert, Yves Ville, Thierry Granger, Gilles Hilbert, Virginie Medeau, Daniel Villers, Benoit Pilmis, François Gouraud, Emmanuel Ardiet, Catherine Heyraud-Blanchet, Alain Devidas, Hélène Dieye, Julie Cremniter, Jean-François Bergmann, Rozenn Le Berre, Virginie Leguen, Daniel Royer, Gilles Le Maout, Christian Harou, Sylvie Gabriel-Soléan, Yves Regouby, Martine Pestel-Caron, Patrick Brunet, David Boutoille, Emmanuelle Bonnin, Patrice Coulon, Marc Sullice, Marianne Barbieux, Gilles Cambonie, Joëlle Tricoire, Marie-Nadège Bachelier, Delphine Briend, Céline Ramanantsoa, Nathalie Bednarek, Didier Lebreton, Julien Lagrandeur, Damien M'Bey, Philippe Audeguy, Elie Saliba, Lena Damaj, Hassan Fallouh, Pascal Couturier, Fabrice Prévost, Yves Domart, Marie-Odile Lafforgue, Anne Le Du, C. Beuscart, Pierre Guillet, Fabrice Larrazet, Marie-Hélène Hausermann, Henri Robert, Nicolas Fanjaud, François Goehringer, Thomas Bachelot Philippe Badia, Jean-Michel Coulaud, Cristel Fissore Magdelein, Renaud Defebvre, Anne-Sohie Moreau, Johan Courjon, Gilles Salles, Michel Mialon, Silvia Iacobelli, Emmanuelle Bille, Marie-Christine Barbier, Yves Aubard, Patrice Badila, Jean-Philippe Rasigade, Alban Deroux, Evelyne Lecaillon-Thibon, Michel Godin, Abdelmajid Djeffal, Viorica Badurescu, Meriem Canitrot, Pierre Blanchard, Antoine Legros, Laurence Got, Françoise Duluc, Mylène M. Maury, Gilles Dassieu, Nordine Khodeir, Jean-Marie Duez, Mathieu Morincomme, Jérôme Lacroix, Mathieu Revest, Koffi Blewoussi, Isabelle Barazer, Françoise Poitevin, Camille Seignovert, Stéphanie Honore Bouakline, Anne Heidt, Brigitte Malbruny, Julien Desblache, Christian Cattoen, Eric Jaunait, Bruno Chaminade, Claude Bazin, Jonathan Chelly, Anne Pottier, Alain Schmitt, Alain Tissot, Karim Dadoun, P. Rebattu, Claudine Contamin, Arnaud Guerard, Nathalie Ravet, Sandrine Khalifa-Thellier, Marlène Chatron, Gaëlle Dörr, Hélène Biessy, Emmanuel Forestier, Bruno Devaux, Jean-Jacques Grelaud, Xavier Tchenio, Marie-Cécile Ploy, Jérémie Violette, Michèle Burdin, Lionel Falchero, Dominique Jacomy, Jean-Christophe Rozé, Damien Labarriere, Stéphane Leroux, Corinne Meregnani, Assia Ferhat Carre, Paul Orode, Jean-Gabriel Paul, Catherine Godon, Agnès Vinay, Régine Barraduc, Dominique Dallay, Alexandre Ampère, Anne-Gaelle Kervegant, Guillaume Louart, Dominique Beal Ardisson, Francoise Leonetti, Jean-Yves Baril, Stéphanie Haiat, Bincy Darre, Jérôme Bay, Yvan Gauthier, Sylvie Radenne, Pierre-Yves Gueugniaud, Philippe Ravaud, Luc Landraud, Guillaume Ranchon, Loïc Chimot, Véronique Duval, Ilhem Agha-Mir, Sabine Camiade, Estelle Wafo, Jean-Patrick Laporte, Mariam Roncato-Saberane, Camille Bron, Patrice Laudat, Samir Kennouche, Nawel Afroukh, Dominique Neri, Hakim Kherouf, Yoar Hichri, Pierre-Edouard Bollaert, Gwenaelle Vary, Denis Castaing, Christine Lefort, Sébastien Rouget, René Robert, Christelle Guillet-Caruba, Catherine Simonin, Alain Vighetto, Severine Cabasson, Alain Brusset, Alexandra Doloy, Christel Cherlet, Ahmed Rouidi, Marina Salvucci, Réginald Pordes, René-Gilles Patrigeon, Emmanuelle Dupre-Narlet, Jacques Minet, Fethi Taleb, Anne-Marie Colingorski, Tahar Hadou, Sylvain Diamantis, Isabelle Glorieux, Thierry May, Jean-Claude Colombani, Anne Berth-Farges, Nicole Desplaces, Renaud de Tayrac, Elisabeth Walter, Fabienne Lorge, Pascal Reboul, Nathalie Dournon, Laurence Estépa, Marie-Lina Toubia, Mathilde Flahault, Thierry Delacour, Dominique Hurel, Hélinoro Andriamaneo, Cécile Bébéar, Denis Grasset, Miloud Serier, Oléna Orléva, Nadine Dubroca, Hervé Gentilhomme, Jean-Luc Baudel, Isabelle Lavenu, Salim Smati, Carlo Saroufim, Eric Placidi, Albert Sotto, Benoît Libeau, Hélène Leroy, François Golfier, Christophe Dollon, Laurence Desnoulez, Eric Barre, Daniel Cohen, Pascal Priollet, Thierry Marsepoil, Benoît Lionnet, Jacques Tebib, Pascale Penn, Antoine Bouissou, Christian Roth, Olivier Martinet, Anna Schmitt, Nathalie Fruleux, Fouzia Radaoui, Jean-Marc Lessinger, Virginie Morando, Jean-Jacques Maillet, Christophe Fruchart, François Boué, François Goffinet, Franck Lellouche, Martin Demarchi, Alain Geissler, Jean-Charles Picaud, David Assouline, Patricia Brazille, Philippe Guimier, Marie-Françoise Dabysing, Bruno Delpeuch, Vanessa Tran, Guy Gengembre, Delphine Deligne, Dominique Vodovar, Yvan Touze, Sabrina Parent, Anne Decoster, Camille Dewitte, Emmanuel Weiss, Thierry Lambert, Thomas Guimard, Vincent Caille, Claude Guérin, Françoise Evreux, Geneviève Barjon, Basile Ondze, Damien Fournier, Olivia Bandin, Sophie Mignart, Henri Demontclos, Didier Perez, Jacques Croize, Nicole Desbois-Nogard, Guenièvre Imbert, Clarisse Dupin, Khalid Ridah, Marie-Christine Varin, Guillaume Arlet, Edith De Clareuil, Marie-Line Eustache, Patricia Le Pimpec, Louise Fortin, Eugène Ngami, Fabrice Mihout, Cecilia Esnault, Vincent Bouden, Véronique Annaix, Yves Poinsignon, Aurélien Lorchleac'h, Jean-Marc Degreff, Marie Garofano, Renaud Mesnage, Anne-Marie Roque-Afonso, Alain Chevailler, Stéphane Hominal, Thierry Charbonnier, Adrianna Bildea, Fabien Fily, Benjamin Davido, Emmanuel Rassiat, Assi Assi, Stéphanie Brunet, Hervé Jacquier, Catherine Claise, Annie Durand, Yannick Monceau, Pierre Blanc, Jean-Marie Sire, Yves Sucin, Jean-Pierre Zarski, Nathalie Bronet, Ingrid Lafon, Philippe Rey, Jacques Markarian, Eric Sennevile, Olivier Wink, Guilène Barnaud, Anne-Sophie Peultier, Sabine Taylor, Rim Savatier, Patrick Valayer, Claude Negrier, Selim Jennane, Edouard Begon, Laura Hyerle, Delphine Bridoux, Claire Daurel, Benoît Dalle, Mathilde Lescat, Philippe Stolidi, Elodie Perrodeau, Xavier Heches, Pierre Castelnau, Philippe Bray, Jean-Claude Texier, Serge Rossignol, Maud Brung-Lefebvre, Jean-François Subra, Jean-Marie Delarbre, Morgane Schneerson, Guyro Jang, Mona Mehri, Nathalie Landgraf, Pierre-Marie Girard, Armand Goll, Zaineb Bekguesmia, Christophe Clement, Michel Collet, Vincent Maze, Amine Benjelloul, Solène Durliat-Ellie, Vincent Letouzey, François Schmitt, Valérie Martinez, Sarah Watson, Abderrezak Bouasria, François Barbier, Raphael Lauretta, Mirana Razafimahery, Cristina Sirbu, Patrick Malherbe, Anne Wuillai, Ludovic Lesecq, Philippe Gaudard, Serge Houssaye, Jacques Monsegu, Gilles Rival, Chantal Chaplain, Jean-Didier Grangé, Oana Zamfiri, Florence Nguyen-Khac, Marc Portneuf, Jean-Michel Pawlotsky, Delphine Bonnet, Laurent Traissac, Sophie Hamon-Charles, Didier Dreyfuss, Louis Bernard, Laurence Detourmignies, Olivier Martineau, François Pettinelli, Marc Zandecki, Michel Dreyfus, Alain Chapelle, Sébastien Sabbat, Anne-Sophie Labussiere, Jean-Louis Gaillard, Chloé Plouzeau-Jayle, Patrick Zoveda, Véronique Leflon, Marie Levy, Aurélie Labé, Bruno Soulie, Raoul Jacques Bensaude, Hecham Moussa, Sylviane Catteu, Nathalie Biron, Loïc Masson, Georges Mourad, Nejla Aissa, Dragos Ciocan, Hubert De Boysson, Jean-Luc Bouyer, Patrick Yeni, Thierry-Pascal Zame, Caroline Thomas, François Cavalié, Laurence Koulmann, Christophe Rioux, Olivier Barraud, François Bricaire, Marguerite Le Poulain, Marie-Noelle Noulard, René Thomas, Guy Semet, Laurent Mosser, Olivier Marret, Brigitte Rivière, Vincent Jarlier, Jean-Philippe Coindre, Marc Villemain, Martin Pierre, Yacine Benkaci, Philippe Chiron, Hoang Vu-Thien, Jérôme Gournay, Andrea Labaune-Kiss, Brigitte Lauzanne, Fanny Lemercier, Souad Silhadi, Imad Kansau, Christophe Poncelet, Olivier Baldesi, Francis Thuet, Olivier Leroy, Aurore Lamberet, Camille Petit Hoang, Sophie Micheli, Ayman Abokasem, Hakima Nesrine, Pierre Lureau, Christian Chidiac, Vincent Piriou, Fabien Zoulim, Dieudonné Nicobaharaye, Anne Tixier, Isabelle Matheron, Soumeth Abasse, Victoria Cacheux, Serge Herson, Christine Fuhrmann, Olivier Proost, Bernard Bedock, Olivier Rogeaux, Mostapha Hajjar, Anne Reverseau, René Courcol, Françoise Carmagnol, Yves Guénard, Céline Ménard, Bouchra Lamia, Bruno Lemmens, Damien Bouhour, L. Lequen, Gaëlle Baty, Cédric Bouet, Dominique Guerrot, Stéphane Blanc, Catherine Chirouze, Anne-Hélène Reboux, A. Vachée, Gregory Taurin, Myriam Mein-Bottini, Jean-Pierre Belot, Alain Lafeuillade, Patricia Gabez-Therou, Philippe Labrousse, Bernard Jarrousse, Philippe Noto, Vincent Brunot, Philippe Condominas, Marion Challier, Béatrice Berçot, Delphine Anuset, Mélanie Daval Cote, François Bernasconi, Y. Costa, Chandrah Goburdhun, Bernard Gressier, Alban Michaud-herbst, Franck Charlier, Moussa Hecham, Luc Boulain, Hélène Corneloup, Alix Greder Belan, Nicolas Boussekey, Claire-Antoinette Dupuy, Yannick Rouquet, Benoit Renard, Benifla Jl, Etienne Javouhey, Michèle Granier, Marie-Christine Jaffarbandjee, Emilie Piet, Benoît Bergues, Claire Malbrunot, Catherine Tiry, Philippe Mérigot, Mouna Ben Soltana, Chantal Roure Sobas, Florian Radenac, Yves Thomas, Agathe Blaise, Sylvie De Martino, Laurence Legout, Gabriel Choukroun, Jean-François Muir, Peggy Dupretz, Patrick Dupont, François Guichart, Julie Jean, Jean-Michel Descamps, Bernard Kittschke, Anne Gruson, Gerard Viquesnel, Marie Keller, Pascal Chavanet, Françis Vallet, Yvan Vaschalde, Jean-Luc Hanouz, Gerard Lina, Françoise Loison, Simon Vincent, Jean-Paul Thellier, Moncef Afi, Dominique Zagozda, Hélène Sokeng-Affoule, Marc Le Bideau, Jean-François Loriferne, Alain Gravet, Sophie Deprecq, Tarik Naceur, Severine Mielczarek, René-Jean Bensadoun, Bernard Karkous, Yves Bléher, Jocelyne Poulain, Véronique Goulet, Laurence Nicolet, Sophie Arista, Antônio Lúcio Teixeira, Jean-François Schved, Laurent Nicolet, Claire Lecomte, Faiza Benddif-Fin, Michel Aumersier, Laurence Burc-Struxiano, Maxime Thouvenin, Samia Harbi, Mathieu Detave, Catherine Rebeyrotte, Jean-Paul Kisterman, Bruno Berdin, Pascal Vincent, Laurent Argaud, Elisabeth Parisi-Duchene, Geneviève Julienne, Fernanda Farto-Bensasson, Georges-Fabrice Blum, Sad Gaizi, Tali-Anne Szwebel, Raphaël Lepeule, Marie-Thérèse Climas, Anne-Françoise Dillies, Amar Boudhane, Umberto Simeoni, Pierre-François Dequin, Gérard Oliviero, Alain Gourlaouen, Caroline Piau, Marie-France Lutz-Murphy, Benoît Claude, Jean-Paul Aubry, Nadine Dubosc-Marchenay, Kamilla Chraibi, Emmanuelle Heusse, Sylvain Le Chevallier, Nathalie Brieu, Farid Sifaoui, Lorraine Letranchant, Hélène Durox, Jean-Pierre Lagasse, Adel Ghedira, Xavier Roubert, Fatma Magdoud, Hélène Jean-Pierre, Etienne Carbonelle, Olivier Dereeper, Lionel Carbillon, Christophe Billy, Mélanie Roblin, Marie-José Kodzin, Philippe Niel, Solène Makdessi, Matteo Vassallo, Maryse Archambaud, Fabian Haccourt, Didier Blaise, Stéphane Bourgeois, Elena Marcu, Charles Kubiak, Brisse Castel, François Guinet, Marie Pouzoullic, Frédérique Nathan-Bonnet, Vincent Gendrin, Céline Becherrawy, Aline Secher, Pierre Abgueguen, Clarence Eloy, Jean-Marc Tourani, Frédéric Klapczynski, Bernard Montmasson, Philippe Real, Joanna Pofelski, Yves Welker, Karim Krechiem, Eric Caumes, Martine Elena-Daumas, Christophe Saigne, Gilles Hittinger, Chantal Delesalle, Jonathan Messika, Fabrice Lesage, Daniela Pop, Daniel Coetmeur, Renato Colamarino, Chetaou Mahaza, Patrick Plésiat, Isabelle Fredenucci, Mylène Baret, Guy Mager, Pascale Chavel, Isabelle Labourdette, Anne-Claude Menguy, Nicolas Fortineau, Ludovic Le Sec, Valérie Gauduchon, Francis Barraud, Nicolas Letellier, Didier Vincent, Janine Frey, Philippe Riegel, Michel Pavic, Jean-Luc Fabre, Jean-Pierre Fauchart, Alain Goudeau, Stéphanie Husson-Wetzel, Philippe Eymerit, Mohamed Camara, Nathalie Seta, Elisabeth Carole Ngo Bell, Philippe Repellin, Laurent Alric, Vincent Leroy, Françoise Delisle Mizon, Jean-Philippe Emond, Marie-Françoise Borie, Lise Crémet, Wladimir Chelle, Elisabeth Brottier-Mancini, Bernard Garrigues, Claire Letellier, Loïc Geffray, Frédéric Méchaï, Julien Bador, Benoit Guery, Alain-Charles Fouilhoux, Corinne Dagada, Pierre Duhaut, Julien Goustille, Arnaud Sément, Francis Carcenac, Isabelle Girard-Buttaz, Claire Chapuzet, Fabienne Jouatte, Bruno Riou, Fabrice Hayoun, Chloé Di Meglio, Youssef Ali, Michel Leneveu, Nathalie Montagne, Yves Garcera, Audrey Moustache, Pierre-Eric Danin, Geneviève Le Lay, Dominique Courouge-Dorcier, Isabelle Worcel, Emmanuel Morelon, Vincent Pestre, Jean-Pierre Vilque, Jean-Christophe Paquet, Lucien Bodson, Anne-Marie Forest, Fabrice Pierre, Christian Pommier, Fabien Dutasta, Pierre Fournel, Stéphanie Courtois, Elodie Dubois, Serge Vanden Einjden, Patrick Honderlick, Pascal Richette, Fabienne Tamion, Véronique Chassy, Richard Megbemado, Anne-Marie Le Reste, Bernard Simian, Henri Osman, Anthony Texier, Badih Ayach, François Simon, Jean-Michel Filloux, Béatrice Dubourdieu, Jean-Claude Semet, Sarah Kubab, Tawfiq Henni, Patrick Dudeffant, Delphine Hequet, Olivier Mimoz, Marc Auburtin, Amélie Chabrol, Mickael Bonnan, Caroline Léonnet, Claire Wintenberger, Serge Ilunga, Patrice Lanba, Sophie Rosello, Alexandre Damage, Flore Bouche, Michel Thibault, Frederic Faibis, Chantal Dhennain, Jean-Philippe Talarmin, Armelle Lamour, Remi Boussier, Fabien Garnier, Marie-Laure Brival, Nourredine Hedjem, Philippe Vande-perre, Raphaël Coint, Jean-Claude Reveil, Eva Weinbronn, Emmanuelle Lavalard, Alexandra Fille, Françoise Le Turdu, Lionel Leroux, Jean-Yves Lefrant, Jean Berthet, Radia Bouaziz, Alain Ravaud, Sylvaine Rousseau, Yacine Merrouche, Alain Le Coustumier, Bertrand Guider, Gisèle Dewulf, Jean-Marc Faucheux, Jacques Piquet, Franck Leibinger, Charles Cerf, Robin Stephan, Jean-Philippe Redonnet, Jean-Paul Stahl, Ella Dzeing, Simona Pavel, Guy Vernet, Ghada Hatem, Samer Kayal, Jacques Deschamps, Dominique Descamps, Marion Levast, Marc Bouiller, Sylvie Dargere, Claire Dingremont, Stéphane Gaudry, François Maillot, Sylvie Odent, Nathalie Cervantes, Hélène Zanaldi, Laurence Gachassin, Olivier Ruyer, David Patin, Benoît Cazenave, Pascal Jacquier, Michelle Boyer, Béatrice Berteaux, Virginie Zarrouk, Jacques Bor, Isabelle Legoff, Hélène Albinet, Florence Rousseau, Gilles Pialoux, Guenaelle Salaun-Beretta, Alexandra Moura, Véronique Vernet Garnier, Didier Lepelletier, Pierre-Alexandre Hauss, Joëlle Belaisch-Amart, Didier Lepeletier, Jacob Xavier, Aline Nare, Annie Motard-Picheloup, Alain Améri, Bertrand Lioger, Jean-Valère Malfuson, Centre d'infectiologie Necker-Pasteur [CHU Necker], Institut Pasteur [Paris] (IP)-CHU Necker - Enfants Malades [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre National de Référence Listeria - National Reference Center Listeria (CNRL), Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre collaborateur de l'OMS Listeria / WHO Collaborating Centre Listeria (CC-OMS / WHO-CC), Institut Pasteur [Paris] (IP)-Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie (UPMC), Université Pierre et Marie Curie - Paris 6 (UPMC), Département de Médecine interne [Lariboisière], Hôpital Lariboisière-Fernand-Widal [APHP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7), Biologie des Infections - Biology of Infection, Service de Gynécologie et Obstétrique [Cochin], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Investigation Clinique et d’Accès aux Ressources Biologiques (Plate-forme) - Clinical Investigation and Access to BioResources (ICAReB), Institut Pasteur [Paris] (IP), Infectious Disease Department [Saint Maurice], Agence Nationale de la Santé Publique [Saint-Maurice] (ANSP), Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS (U1153 / UMR_A_1125 / UMR_S_1153)), Institut National de la Recherche Agronomique (INRA)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris Descartes - Paris 5 (UPD5)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris Descartes - Paris 5 (UPD5), CHU Amiens-Picardie, Mécanismes physiopathologiques et conséquences des calcifications vasculaires - UR UPJV 7517 (MP3CV), Université de Picardie Jules Verne (UPJV)-CHU Amiens-Picardie, MONALISA study group, Programme Hospitalier Recherche Clinique, Institut Pasteur, Inserm, French Public Health Agency., ROZIER, marie-Claire, CHU Necker - Enfants Malades [AP-HP], Centre National de Référence Listeria - Biologie des Infections (CNRL), Institut Pasteur [Paris]-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre collaborateur de l'OMS Listeria - Biologie des Infections (CCOMS), CHU Pitié-Salpêtrière [APHP], Hôpital Lariboisière-Université Paris Diderot - Paris 7 (UPD7), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Cochin [AP-HP], Institut Pasteur [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP), Assistance publique - Hôpitaux de Paris (AP-HP)-CHU Necker - Enfants Malades [AP-HP], Centre National de Référence Listeria - Biologie des Infections ( CNRL ), Institut Pasteur [Paris]-Institut National de la Santé et de la Recherche Médicale ( INSERM ), Centre collaborateur de l'OMS (CCOMS) des Listeria ( CCOMS ), Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité ( CRESS (U1153 / UMR_A 1125) ), Institut National de la Recherche Agronomique ( INRA ) -Université Sorbonne Paris Cité ( USPC ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Université Pierre et Marie Curie - Paris 6 - UFR de Médecine Pierre et Marie Curie ( UPMC ), Université Pierre et Marie Curie - Paris 6 ( UPMC ), Université Paris Diderot - Paris 7 ( UPD7 ) -Hôpital Lariboisière, Biologie des Infections, Institut Pasteur [Paris]-Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ), Investigation Clinique et d’Accès aux Ressources Biologiques (Plate-forme) - Clinical Investigation and Access to BioResources ( ICAReB ), Agence Nationale de la Santé Publique [Saint-Maurice] ( ANSP ), Assistance Publique - Hôpitaux de Paris, Assistance publique - Hôpitaux de Paris (AP-HP), Université Paris Descartes - Paris 5 ( UPD5 ), Institut Pasteur [Paris]-CHU Necker - Enfants Malades [AP-HP], Institut Pasteur [Paris]-Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), and Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de la Recherche Agronomique (INRA)
Subjects: Bacteremia/epidemiology/mortality, 0301 basic medicine, Male, Pediatrics, bacteraemia, Infectious Disease Transmission, [SDV]Life Sciences [q-bio], Bacteremia, France/epidemiology, Infant, Newborn, Diseases, Foodborne Diseases, Meningoencephalitis, Pregnancy, Risk Factors, Vertical, Medicine, Listeriosis, Prospective Studies, Pregnancy Complications, Infectious, Prospective cohort study, ddc:618, diabetes, alcoholism, Hazard ratio, Foodborne Diseases/microbiology, immuno suppressive therapies, Prognosis, 3. Good health, [SDV] Life Sciences [q-bio], Hospitalization, Infectious Diseases, isolates, Population Surveillance, Female, France, Listeria monocytogenes/classification/isolation & purification, Cohort study, Adult, medicine.medical_specialty, 030106 microbiology, Notifiable disease, Listeriosis/diagnosis/epidemiology/microbiology, Context (language use), macromolecular substances, 03 medical and health sciences, Humans, study, Aged, [ SDV ] Life Sciences [q-bio], business.industry, Public health, cirrhosis, Infant, Newborn, Infant, Diseases/epidemiology/microbiology, HIV, Mandatory Reporting, Newborn, medicine.disease, Listeria monocytogenes, infection, Infectious Disease Transmission, Vertical, Pregnancy Complications, Infectious/epidemiology/microbiology, Meningoencephalitis/epidemiology/microbiology/mortality, Observational study, business, prognostic, mellitus
Abstract: International audience; Evidence before this study We searched PubMed on June 30, 2016, for English-language cohort studies published since Jan 1, 1980, of patients with invasive listeriosis worldwide with the keywords " listeria " , " listeriosis " , " maternal " , and " neurolisteriosis ". Studies had to include epidemiological or clinical data on listeriosis. All clinical forms of infection were included (bacteraemia, neurolisteriosis, and maternal–neonatal infection). Host risk factors for listeriosis have been well identified, but the clinical features and prognostic factors of the disease are based on retrospective studies compiling heterogeneous data or random collected cases. Furthermore, no clinical trial has ever been done and medical management is not evidence based. Added value of the study Our study is the first prospective clinical study focusing on all forms of invasive listeriosis. The study is based on a national mandatory system that allowed the nearly complete capture of microbiologically proven cases. The study shows a higher burden of listeriosis than reported before: more than 80% of infected mothers experienced major fetal or neonatal complications (fetal loss, very high prematurity, early or late onset disease); only 39% of patients with neurolisteriosis survived and fully recovered. The study provides important new data to improve management and predict outcome in listeriosis, such as determination of the time window for fetal losses (
Published: 2016

17. Reactivity Perturbation Formulation for a Discontinuous Galerkin–Based Transport Solver and Its Use with Adaptive Mesh Refinement

Author: R. Le Tellier, Damien Fournier, and C. Suteau
Subjects: Mathematical optimization, Discretization, 010308 nuclear & particles physics, Adaptive mesh refinement, 0211 other engineering and technologies, Perturbation (astronomy), 02 engineering and technology, Solver, 01 natural sciences, law.invention, Ordinate, Nuclear Energy and Engineering, law, Discontinuous Galerkin method, 0103 physical sciences, Applied mathematics, Cartesian coordinate system, 021108 energy, Convection–diffusion equation, Mathematics
Abstract: Within the framework of a Discontinuous Galerkin spatial approximation of the multigroup discrete ordinates transport equation, we present a generalization of the exact standard perturbation formula that takes into account spatial discretization-induced reactivity changes. It encompasses in two separate contributions the nuclear data-induced reactivity change and the reactivity modification induced by two different spatial discretizations. The two potential uses of such a formulation when considering adaptive mesh refinement are discussed, and numerical results on a simple two-group Cartesian two-dimensional benchmark are provided. In particular, such a formulation is shown to be useful to filter out a more accurate estimate of nuclear data-related reactivity effects from initial and perturbed calculations based on independent adaptation processes.
Published: 2011

18. Analysis of an a posteriori error estimator for the transport equation with SN and discontinuous Galerkin discretizations

Author: Damien Fournier, C. Suteau, and R. Le Tellier
Subjects: Neutron transport, Nuclear Energy and Engineering, Discretization, Discontinuous Galerkin method, law, Mathematical analysis, Estimator, Polygon mesh, Cartesian coordinate system, Convection–diffusion equation, Mathematics, law.invention, Variable (mathematics)
Abstract: We present an error estimator for the S N neutron transport equation discretized with an arbitrary high-order discontinuous Galerkin method. As a starting point, the estimator is obtained for conforming Cartesian meshes with a uniform polynomial order for the trial space then adapted to deal with non-conforming meshes and a variable polynomial order. Some numerical tests illustrate the properties of the estimator and its limitations. Finally, a simple shielding benchmark is analyzed in order to show the relevance of the estimator in an adaptive process.
Published: 2011

19. A Wavelet-Based Finite Element Method for the Self-Shielding Issue in Neutron Transport

Author: Damien Fournier, J. M. Ruggieri, and R. Le Tellier
Subjects: Neutron transport, Mathematical optimization, 010308 nuclear & particles physics, Numerical analysis, 0211 other engineering and technologies, Wavelet transform, Cascade algorithm, 02 engineering and technology, 01 natural sciences, Finite element method, Computational physics, Wavelet, Nuclear Energy and Engineering, 0103 physical sciences, Electromagnetic shielding, 021108 energy, Convection–diffusion equation, Mathematics
Abstract: This paper describes a new approach for treating the energy variable of the neutron transport equation in the resolved resonance energy range. The aim is to avoid recourse to a case-specific spatia...
Published: 2009

20. Complexity of resistance mechanisms to imipenem in intensive care unit strains of Pseudomonas aeruginosa

Author: Catherine Llanes, Damien Fournier, Charlotte Richardot, Patrick Plésiat, Emeline Müller, Katy Jeannot, Marjorie Robert-Nicoud, Centre National de Référence de la Résistance aux Antibiotiques (CNR), Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Agents pathogènes et inflammation - UFC (EA 4266) (API), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Centre National de Référence de la Résistance aux Antibiotiques ( CNR ), Centre Hospitalier Régional Universitaire [Besançon] ( CHRU Besançon ), Agents pathogènes et inflammation - UFC (EA 4266) ( API ), Université de Franche-Comté ( UFC ), Hôpital Jean Minjoz, Laboratoire Chrono-environnement ( LCE ), and Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC )
Subjects: Microbiology (medical), Carbapenem, Imipenem, carbapenemases, Genotype, health care facilities, manpower, and services, Blotting, Western, Microbial Sensitivity Tests, Biology, [ SDV.MP.BAC ] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, medicine.disease_cause, beta-Lactam Resistance, beta-Lactamases, Microbiology, 03 medical and health sciences, Intensive care, medicine, Humans, Pharmacology (medical), Pseudomonas Infections, Insertion sequence, active efflux, 030304 developmental biology, porin OprD, Pharmacology, 0303 health sciences, Mutation, 030306 microbiology, Pseudomonas aeruginosa, Hospitals, Public, imipenem resistance, Genetic Variation, biochemical phenomena, metabolism, and nutrition, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, 3. Good health, Anti-Bacterial Agents, Intensive Care Units, Infectious Diseases, Porin, Efflux, France, medicine.drug
Abstract: Background Pseudomonas aeruginosa can become resistant to carbapenems by both intrinsic (mutation-driven) and transferable (β-lactamase-based) mechanisms. Knowledge of the prevalence of these various mechanisms is important in intensive care units (ICUs) in order to define optimal prevention and therapeutic strategies. Methods A total of 109 imipenem-non-susceptible (MIC >4 mg/L) strains of P. aeruginosa were collected in June 2010 from the ICUs of 26 French public hospitals. Their resistance mechanisms were characterized by phenotypic, enzymatic, western blotting and molecular methods. Results Single or associated imipenem resistance mechanisms were identified among the 109 strains. Seven isolates (6.4%) were found to produce a metallo-β-lactamase (one VIM-1, four VIM-2, one VIM-4 and one IMP-29). Porin OprD was lost in 94 (86.2%) strains as a result of mutations or gene disruption by various insertion sequences (ISPa1635, ISPa1328, IS911, ISPs1, IS51, IS222 and ISPa41). Thirteen other strains were shown to be regulatory mutants in which down-regulation of oprD was coupled with overexpressed efflux pumps CzcCBA (n = 1), MexXY (n = 9) and MexEF-OprN (n = 3). The lack of OprD was due to disruption of the oprD promoter by ISPsy2 in one strain and alteration of the porin signal sequence in another. Conclusions Imipenem resistance in ICU P. aeruginosa strains may result from multiple mechanisms involving metallo-β-lactamase gene acquisition and genetic events (mutations and ISs) inactivating oprD, turning down its expression while increasing efflux activities or preventing insertion of porin OprD in the outer membrane. This diversity of mechanisms allows P. aeruginosa, more than any other nosocomial pathogen, to rapidly adapt to carbapenems in ICUs.
Published: 2013

21. Neisseria sicca Endocarditis Complicated by Intracranial and Popliteal Aneurysms in a Patient with a Bicuspid Aortic Valve

Author: Catherine Chirouze, Damien Fournier, Guillaume Debellemanière, Laurent Hustache-Mathieu, Alessandra Biondi, Bruno Hoen, services de maladies infectieuses, CHU J Minjoz, Besançon, Ministère de la santé, service de maladies infectieuses CHU J Minjoz Besancon, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Laboratoire Chrono-environnement - CNRS - UBFC (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), Service des maladies infectieuses et tropicales, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon)-Hôpital Saint-Jacques, Hôpital Jean Minjoz, Centre Hospitalier Régional Universitaire [Besançon] ( CHRU Besançon ), Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), and Centre Hospitalier Régional Universitaire [Besançon] ( CHRU Besançon ) -Hôpital Saint-Jacques
Subjects: medicine.medical_specialty, medicine.medical_treatment, Case Report, Neisseria sicca, Endovascular occlusion, lcsh:Infectious and parasitic diseases, 03 medical and health sciences, 0302 clinical medicine, Bicuspid aortic valve, [ SDV.MHEP ] Life Sciences [q-bio]/Human health and pathology, Antibiotic therapy, medicine, Endocarditis, lcsh:RC109-216, 030212 general & internal medicine, cardiovascular diseases, 0303 health sciences, biology, 030306 microbiology, business.industry, Mitral valve replacement, Popliteal artery aneurysm, General Medicine, biology.organism_classification, medicine.disease, 3. Good health, Surgery, Infective endocarditis, cardiovascular system, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract: We report a case of infective endocarditis due toNeisseria siccacomplicated by intracranial and popliteal aneurysms and hepatic and splenic infarcts in a patient with a bicuspid aortic valve. No predisposing factor other than poor dental condition was found. The patient fully recovered after antibiotic therapy, aortic and mitral valve replacement, endovascular occlusion of the middle-cerebral artery aneurysm, and surgical treatment of the popliteal artery aneurysm.
Published: 2012

22. Pinsker estimators for local helioseismology: inversion of travel times for mass-conserving flows

Author: Laurent Gizon, Damien Fournier, Martin Holzke, and Thorsten Hohage
Subjects: Covariance matrix, Applied Mathematics, Estimator, Inverse, 010103 numerical & computational mathematics, Inverse problem, Minimax, 01 natural sciences, Computer Science Applications, Theoretical Computer Science, Tikhonov regularization, 0103 physical sciences, Signal Processing, Singular value decomposition, Applied mathematics, Helioseismology, 0101 mathematics, 010303 astronomy & astrophysics, Mathematical Physics, Mathematics
Abstract: A major goal of helioseismology is the three-dimensional reconstruction of the three velocity components of convective flows in the solar interior from sets of wave travel-time measurements. For small amplitude flows, the forward problem is described in good approximation by a large system of convolution equations. The input observations are highly noisy random vectors with a known dense covariance matrix. This leads to a large statistical linear inverse problem. Whereas for deterministic linear inverse problems several computationally efficient minimax optimal regularization methods exist, only one minimax-optimal linear estimator exists for statistical linear inverse problems: the Pinsker estimator. However, it is often computationally inefficient because it requires a singular value decomposition of the forward operator or it is not applicable because of an unknown noise covariance matrix, so it is rarely used for real-world problems. These limitations do not apply in helioseismology. We present a simplified proof of the optimality properties of the Pinsker estimator and show that it yields significantly better reconstructions than traditional inversion methods used in helioseismology, i.e. regularized least squares (Tikhonov regularization) and SOLA (approximate inverse) methods. Moreover, we discuss the incorporation of the mass conservation constraint in the Pinsker scheme using staggered grids. With this improvement we can reconstruct not only horizontal, but also vertical velocity components that are much smaller in amplitude.
Published: 2016

23. An Adaptive Energy Discretization of the Neutron Transport Equation Based on a Wavelet Galerkin Method

Author: Damien Fournier and R. Le Tellier
Subjects: Physics, Neutron transport, Wavelet, Discretization, Neutron flux, Mathematical analysis, Neutron, Galerkin method, Homogenization (chemistry), Finite element method
Abstract: of interactions. The unknown is the so-called neutron flux φ( r, Ω, E) = v(E)n( r, Ω, E) with n( r, Ω, E) the neutron density and v(E) the neutron velocity. The problem is defined in terms of the neutron interaction properties of the different materials i.e. the cross sections. The solution of this equation in a deterministic way proceeds by the successive discretization of the three variables: energy, angle and space. The treatment of the energy variable invariably consists in a multigroup discretization which considers the cross sections and the flux to be constant within a group (i.e. a cell of the 1D energy mesh). A pre-homogenization of the cross sections is performed at the library processing level using a spatially independent weighting flux (e.g. 1/E spectrum in the epithermal range). With a broad group structure (≈ 100 to 2000 energy groups), this prior homogenization is unsufficient to take into account the case-specific, spatially-dependent, self-shielding effect i.e. the flux local depression in the vicinity of resonances that largely affects the neutron balance. As a consequence, a neutron transport calculation has to incorporate a so-called self-shielding model to correct the group cross sections of resonant isotopes. This homogenization stage of a neutron transport calculation is known to be a main source of errors for deterministic methods; as a consequence, an important work has been carried out to improve it. An optimized energymesh structure (Mosca et al., 2011) in addition to an advanced self-shielding model (Hebert, 2007) is incorporated in state-of-the-art transport codes. A different treatment for the energy variable based on a finite element approach is the basis of the present work. Such an avenue was proposed in the past by (Allen, 1986) but seldom used in practice. Indeed, finite element methods are commonly based on polynomial function bases which are not appropriate for non-smooth behavior. Recently, two independent works by (Le Tellier et al., 2009) and (Yang et al., 2010) have proposed wavelet-Galerkin methods to overcome this issue. In this chapter, after a review An Adaptive Energy Discretization of the Neutron Transport Equation Based on a Wavelet Galerkin Method 16
Published: 2011

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23 results on '"Damien Fournier"'

1. Retrospective Multicentric Study on Campylobacter spp. Bacteremia in France: The Campylobacteremia Study

2. Performance of discs, sensititre EUMDROXF microplates and MTS gradient strips for the determination of the susceptibility of multidrug resistant Pseudomonas aeruginosa to cefiderocol

3. Outgoing modal solutions for Galbrun's equation in helioseismology

4. Lyme neuroborreliosis: warning about the risk of false negative of CSF Borrelia burgdorferi antibody index related to high level of CSF albumin

5. Time to blood culture positivity: An independent predictor of infective endocarditis and mortality in patients with Staphylococcus aureus bacteraemia

6. Modelling continuum intensity perturbations caused by solar acoustic oscillations

7. Categorization of temocillin susceptibility using the disc diffusion method: Susceptible, Intermediate, Resistant or Undetermined?

8. Meridional flow in the Sun’s convection zone is a single cell in each hemisphere

9. Acoustic wave propagation through solar granulation: Validity of effective-medium theories, coda waves

10. Acquisition of class C β-lactamase PAC-1 by ST664 strains of

11. Effect of latitudinal differential rotation on solar Rossby waves: Critical layers, eigenfunctions, and momentum fluxes in the equatorialβplane

12. Predicting frequency changes of global-scale solar Rossby modes due to solar cycle changes in internal rotation

13. Risk of midline catheter-related bloodstream infections in medical and surgical patients. A monocentric prospective study

14. Atmospheric radiation boundary conditions for high frequency waves in time-distance helioseismology

15. Discontinuous Galerkin Discretization and $hp$-Refinement for the Resolution of the Neutron Transport Equation

16. Clinical features and prognostic factors of listeriosis: the MONALISA national prospective cohort study

17. Reactivity Perturbation Formulation for a Discontinuous Galerkin–Based Transport Solver and Its Use with Adaptive Mesh Refinement

18. Analysis of an a posteriori error estimator for the transport equation with SN and discontinuous Galerkin discretizations

19. A Wavelet-Based Finite Element Method for the Self-Shielding Issue in Neutron Transport

20. Complexity of resistance mechanisms to imipenem in intensive care unit strains of Pseudomonas aeruginosa

21. Neisseria sicca Endocarditis Complicated by Intracranial and Popliteal Aneurysms in a Patient with a Bicuspid Aortic Valve

22. Pinsker estimators for local helioseismology: inversion of travel times for mass-conserving flows

23. An Adaptive Energy Discretization of the Neutron Transport Equation Based on a Wavelet Galerkin Method

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