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1. Evaluation of a photonic lantern spatial demultiplexer based receiver for optical communication

Author

Billault, Vincent, Leviandier, Luc, Bourderionnet, Jerome, Pierre, Christophe, Sanquer, Raynald, Castaing, Marc, and Brignon, Arnaud

Subjects
Physics - Optics
Abstract

In this paper, we present a method based on a modal decomposition to quantify the efficiency of photonic lanterns (PL) based free space optical (FSO) communication receivers. We fabricate a seven port PL and we evaluate numerically the free space to fiber coupling efficiency based on a reconstruction of the fields at the PL FSO multimode port. We validate the numerical approach with an experimental characterization of the PL. Then we compare the PL to a commercial multiplane light converter spatial demultiplexer. The PL shows better coupling efficiency for low order spatial modes with orders of magnitude of demultiplexer size reduction. Finally we evaluate the PL receiver with a simulation of received optical wavefront in a FSO communication

Published
2024

2. Evaluation of a multimode receiver with a photonic integrated combiner for satellite to ground optical communications

Author

Billault, Vincent, Bourderionnet, Jerome, Leviandier, Luc, Feneyrou, Patrick, Maho, Anaelle, Sotom, Michel, and Brignon, Arnaud

Subjects
Electrical Engineering and Systems Science - Signal Processing, Physics - Optics
Abstract

Multimode receivers based on spatial or modal diversity are promising architectures to mitigate in real time the atmospheric turbulence effects for free space optical (FSO) communications. In this paper, we evaluate and comment on the dynamical communication performances of a FSO mode diversity receiver, based on a spatial demultiplexer and a silicon photonic coherent combiner, for an optical link from a GEO satellite to an optical ground station (OGS). We simulate time series of distorted wavefronts received by the OGS and we show numerically that the coherent combination of spatial modes mitigate the signal fading compared to a conventional single mode fiber (SMF) receiver. We verify this property in a laboratory environment by generating the wavefronts corresponding to the use case with an atmospheric propagation channel emulator. Then we modulate the optical carrier prior to the wavefront emulator with 10G OOK and DPSK data sequences to measure the BER performance of the proposed receiver during the time series emulation. Finally, we study and comment on the influence of the number of modes combined and the wavelength multiplexing on the BER performances. We prove that the mode diversity receiver provide a higher collection efficiency, has better BER performances and much less synchronization losses., Comment: 8 pages, 9 figures

Published
2022

3. Free space optical communication receiver based on a spatial demultiplexer and a photonic integrated coherent combining circuit

Author

Billault, Vincent, Bourderionnet, Jerome, Mazellier, Jean-Paul, Leviandier, Luc, Feneyrou, Patrick, Maho, Anaelle, Sotom, Michel, Normandin, Xavier, Lonjaret, Herve, and Brignon, Arnaud

Subjects
Physics - Applied Physics, Physics - Optics
Abstract

Atmospheric turbulences can generate scintillation or beam wandering phenomena that impairs free space optical (FSO) communication. In this paper, we propose and demonstrate a proof-of-concept FSO communication receiver based on a spatial demultiplexer and a photonic integrated circuit coherent combiner. The system collects the light from several Hermite Gauss spatial modes and coherently combine on chip the energy from the different modes into a single output. The FSO receiver is characterized with a wavefront emulator bench that generates arbitrary phase and intensity patterns. The multimode receiver presents a strong resilience to wavefront distortions, compared to a monomode FSO receiver. The system is then used to detect a modulation of the optical beam through a random wavefront profile., Comment: 8 pages, 7 figures

Published
2021
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6. Engaging Stakeholders to Develop a Decision Support Model of Conservation Risk and Management Capacity to Prioritize Investments in Bull Trout Recovery.

Author

Brignon, William R., Davis, M. Brian, Gunckel, Stephanie, Dunham, Jason, Meeuwig, Michael H., Allen, Chris, and Clements, Shaun

Subjects
INDUSTRIAL capacity, TROUT, ENVIRONMENTAL agencies, NATURAL resources management, WILDLIFE conservation
Abstract

Rarely are sufficient resources available to support the full suite of management actions to promote recovery of a species across its entire distribution. Decision support models are a tool that can inform natural resource management decisions with consideration of the perspectives from a variety of stakeholders who work across large geographic and jurisdictional extents. We offer an example of a decision support model that was developed by several federal and state natural resource agencies to rank Bull Trout Salvelinus confluentus core areas for prioritizing conservation investment within Oregon, USA. We engaged state‐level decision makers to identify parameters that were believed to be influential in determining funding allocations for Bull Trout core areas. Parameters were linked in a model framework that was further refined with input from local Bull Trout experts with knowledge specific to the various core areas. The model produces a relative priority value that is a combination of the conservation risk to the species and the management capacity to address threats. A series of sensitivity analyses suggested that Bull Trout persistence and threat score were most influential in determining the relative priority of a core area, whereas life history and genetic diversity were least influential. One of the more powerful products from this work is an interactive Web‐based application (https://das.ecosphere.fws.gov/public/obts/) that anyone can use to explore how their beliefs in parameter values will affect the relative priority of Bull Trout core areas across Oregon. Our modeling effort is an example of engaging stakeholders with different roles in species recovery and across a large geographic area to create a clearer path forward in allocating limited resources for species recovery. This approach can be employed to address a number of natural resource management situations across species and habitats. [ABSTRACT FROM AUTHOR]

Published
2023
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11. A risk-based method to prioritize cumulative impacts assessment on marine biodiversity and research policy for offshore wind farms in France.

Author

Brignon, Jean-Marc, Lejart, Morgane, Nexer, Maëlle, Michel, Sylvain, Quentric, Alan, and Thiebaud, Léa

Subjects
MARINE biodiversity, OFFSHORE wind power plants, WIND power
Abstract

This study developed the "ECUME" risk-based approach to identify and prioritize critical impact pathways to be considered in cumulative impact assessment of offshore windfarms, and for future research. The prioritization framework has been tested on two offshore windfarms projects located in the French part of the English Channel off the coast of Normandy, those of Fécamp and Courseulles-sur-Mer. The approach is based on a complete inventory of impact pathways, prioritizing those for which an impact assessment will be carried out. The aim was to avoid a "quantification bias" and elaborate a systemic vision. The novelty of the study is to apply a combination of expert judgement, consensus building, and a scoring system, to prioritize the pairs of pressures and receptors of the marine environment to work on. The scoring system is based on the ecological importance of receptors, the degree of knowledge on the effect of a pressure on a receptor and the sensitivity of each receptor to pressures. Priorities for research were also determined during the same process. Bringing together a large set of specialized marine environnement scientists, the initial challenge was to build a common vocabulary, and a shared understanding of the risk-based prioritization approach. This required significant time and effort but secured foundations for further work. This study confirms the increasingly shared view that adopting a risk-based approach considering adverse effects on receptors is an efficient way to assess cumulative impacts, to focus on critical impact pathways, and manage the scientific complexity and the significant uncertainties. • We prioritize issues in cumulative impact assessment of offshore windfarms. • Prioritization combines risk-based expert judgement and a scoring system. • It is also used to identify priority research areas for the future. • It was tested on two French offshore windfarm projects. • Such a risk-based approach allows to manage scientific complexity and uncertainties. [ABSTRACT FROM AUTHOR]

Published
2022
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13. Low incidence of SARS-CoV-2, risk factors of mortality and the course of illness in the French national cohort of dialysis patients

Author

Couchoud, Cécile, Bayer, Florian, Ayav, Carole, Béchade, Clémence, Brunet, Philippe, Chantrel, François, Frimat, Luc, Galland, Roula, Hourmant, Maryvonne, Laurain, Emmanuelle, Lobbedez, Thierry, Mercadal, Lucile, Moranne, Olivier, Abbassi, Abdelhamid, Debure, Alain, Guerraoui, Abdallah, Benmoussa, Abdelatif, Hamani, Abdelaziz, Ziane, Abdelaziz, Nefti, Abdelhamid, Hadj, Abdelkader, El Amari, Abderrahim, Ghazali, Abderrahmane, Abd El Fatah Mohamed, Abo Bakr, Laradi, Achour, Ben Ahmed, Adel, Sahar, Adel, Pillet, Adele, Lacraz, Adeline, Moinat, Adnan, Massoumi, Afshin, Pardon, Agathe, Beaudoin, Agnes Caillette, Debout, Agnes Chapelet, Mariot, Agnes, Rachi, Ahmed, Afiani, Aida, Boula, Aime Remy, Jalaby, Al, Cremault, Alain, Fournier, Alain, Jeanson, Alain, Lyon, Alain, Nony, Alain, Robert, Alain, Slingeneyer, Alain, Labatide, Alanor Agnes, Sartorius, Albane Brodin, Bensman, Albert, Fournier, Albert, Ranlin, Alex, Sandor, Alex Vido, Colombo, Alexandra, Duhem, Alexandra, Stancu, Alexandra, Dufay, Alexandre, Dumoulin, Alexandre, Ebel, Alexandre, Klein, Alexandre, Martin, Alexandre, Mouneimne, Alexandre, Seidowsky, Alexandre, De Martin, Alfio, Zannier, Alfredo, Aizel, Ali, Hafi, Ali, Diddaoui, Ali Zineddine, Heyani, Alim, Mocanu, Alina, Preda, Alina, Hafi, Aline, Talaszka, Aline, Duquesne, Alyette, Amaouche, Amar, Ghemmour, Amel, Simon, Amelie, Skalli, Amina, Boukadida, Amine, Ragab Eid, Amr Ekhlas, Fedorca, Ana, Baillet, Anabelle, Poyet, Anais, Giorgita, Ancuta Bouffandeau, Ratsimbazafy, Anderson, Pruna, Andre, Argiles, Angel, Testa, Angelo, Vandooren, Ann Karolien, Jolivot, Anne, Labadens, Anne Kolko, Lataste, Anne, Maisin, Anne, Paris, Anne, Sechet, Anne, Wuillai, Anne, Heng, Anne Elisabeth, Josse, Anne Gaelle, Querard, Anne Helene, Reboux, Anne Helene, Adra, Anne Laure, Faller, Anne Laure, Leclerc, Anne Laure, Poitou, Anne Laure, Manucci, Annie Lahoche, Jacquet, Antoine, Pommereau, Antoine, Thierry, Antoine, Adem, Arezki, Chapelet, Arielle, Del Bello, Arnaud, Delezire, Arnaud, Garnier, Arnaud, Guerard, Arnaud, Klisnick, Arnaud, Lionet, Arnaud, Roccabianca, Arnaud, Stolz, Arnaud, Capdeville, Arthur, Allal, Asma, Alrifai, Assem, Diarrassouba, Assetou, Djema, Assia, Carre, Assia Ferhat, Dubrasquet, Astrid Godron, Elmrabet, Atman Haddj, Jegado, Audrey, Thomas, Aurelia Bertholet, Salandre, Aurelie Davourie, Pajot, Aurelie, Lorthioir, Aurelien, Tiple, Aurelien, Sury, Aurore, Abokasem, Ayman, Sarraj, Ayman, Henaoui, Bachir, Chaghouri, Baher, Wehbe, Bassem, Ball, Beatrice, Viron, Beatrice, Issad, Belkassem, Corne, Benedicte Hodemon, Janbon, Benedicte, Deroure, Benjamin, Savenkoff, Benjamin, Jonon, Benoit, Vendrely, Benoit, Djelaleddine, Benyakoub, Ohry, Bernard, Painchart, Bernard, Strullu, Bernard, Temperville, Bernard, Ebikili, Bertin, Hacq, Bertrand, Morel, Bertrand, Aoun, Bilal, Muniz, Blanca, Chlih, Bouchra, Amara, Brahim, Mayor, Brice, Gilson, Brigitte, Llanas, Brigitte, Zins, Brigitte, Bourgeon, Bruno, Coevoet, Bruno, Guery, Bruno, Legallicier, Bruno, Paris, Bruno, Ranchin, Bruno, Seigneuric, Bruno, Dita, Camelia Ghiciuc, Prelipcean, Camelia, Hottelart, Carine Achard, Diet, Carine, Frangie, Carlos, Vela, Carlos, Muresan, Carmina, Deprele, Carole, Araujo, Caroline, Bidault, Caroline, Creput, Caroline, Delclaux, Caroline, Du Halgouet, Caroline, Favennec, Caroline, Freguin, Caroline, Vercel, Caroline Gourraud, Mesguen, Caroline, Obama, Caroline Ndomo, Poitou, Caroline, Dirhold, Caroline Preissig, Roubiou, Caroline, Albert, Catherine, Bessin, Catherine, De Marion Gaja, Catherine, Godart, Catherine, Lasseur, Catherine, Leocardi, Catherine, Lumbroso, Catherine, Melander, Catherine, Michel, Catherine, Maurouard, Catherine Quere, Rouannet, Catherine, Taddei, Catherine, Verove, Cathy, Guiraud, Cecile, Tafelin, Cecile, Baron, Cecile Turc, Formet, Cedric, Pinier, Cedric, De Ste Foy, Celia Lessore, Granolleras, Celine, Bennini, Chaouki, Cartou, Charles, Chazot, Charles, Jouzel, Charlotte, Badid, Cherif, Roubicek, Christa, Viaud, Christel, Verrier, Christelle, Chuet, Christian, Combe, Christian, Dabot, Christian, Duvic, Christian, Emond, Christian, Lagarde, Christian, Lamotte, Christian, Pain, Christian, Mousson, Christiane, Lorriaux, Christie, Beauchamp, Christine, Fumeron, Christine, Le Gurun, Christine, Leroy, Christine, Pietrement, Christine, Richer, Christine, Bouaka, Christophe, Charasse, Christophe, Goupy, Christophe, Ridel, Christophe, Castrale, Cindy, Detourne, Cindy, Francois, Clair, Presne, Claire, Trivin, Claire, Von Kotze, Clarissa, Bernard, Claude, Bonniol, Claude, Desvergnes, Claude, Raharivelina, Claude, Nistor, Claudia, Gueret, Claudine, Lloret, Claudine, Saltiel, Claudine, Rosati, Clelia, Rabate, Clementine, Stanescu, Corina, Ferrandini, Corinne, Guibergia, Corinne, Lemoine, Corinne, Passeron, Corinne, Kahil, Cynthia, Garrouste, Cyril, Van, Cyril Vo, Jolimoy, Cyrille, Kesraoui, Dalila, Jolly, Damien, Thibaudin, Damien, Teboulle, Dan, Daubresse, Daniel, Louvet, Daniel, Rasamimanantsoa, Daniel, Toledano, Daniel, Babici, Daniela, David, Daniela, Dincu, Daniela, Bruno, Danielle, May, Delia, Haussaire, Delphine, Viprey, Delphine Henriet, Bugnon, Denis, Fouque, Denis, Morin, Denis, Nour, Derradji, Mahmoud, Diab Mohamed, Cristescu, Diana Istrati, Aguilera, Didier, Coste, Didier, Hamel, Didier, Le Chapois, Didier, Testou, Didier, Erbilgin, Dilaver, Dahmane, Djamal, Quang, Doan Bui, Bertrand, Dominique, Besnier, Dominique, Blanchier, Dominique, Briffa, Dominique, Caux, Dominique, Durand, Dominique, Fleury, Dominique, Guerrot, Dominique, Hestin, Dominique, Jaubert, Dominique, Joly, Dominique, Lombart, Dominique, Pagniez, Dominique, Pierre, Dominique, Schohn, Dominique, Ikonga, Donatien, Visanica, Dorina, Bazin, Dorothee, Boury, Edouard, Maksour, Edouard, Agbonon, Ekoue, Harrami, Elarbi, Marcu, Elena, Tudorache, Elena, Caniot, Elisabeth, Semjen, Elisabeth, Tomkiewicz, Elisabeth, Scheidt, Elise, Gaboriau, Elke, Lamouroux, Elodie, Guiard, Elsa, Passos, Elsa Martin, Nsembani, Emerson, Fache, Emilie, Kalbacher, Emilie, Pambrun, Emilie, Pincon, Emilie, Launay, Emma Allain, Baron, Emmanuel, Dupuis, Emmanuel, Villar, Emmanuel, Charlin, Emmanuelle, Hecquet, Emmanuelle, Kohler, Emmanuelle, Laurain, Emmanuelle, Rosier, Emmanuelle, Figueroa, Enrique, Azoulay, Eric, Canivet, Eric, Daugas, Eric, Gauthier, Eric, Laruelle, Eric, Le Guen, Eric, Legrand, Eric, Moumas, Eric, Postec, Eric, Prinz, Eric, Renaudineau, Eric, Desport, Estelle, Sutra, Estelle Ricard, Berard, Etienne, Ged, Etienne, Robin, Etienne, Vilaine, Eve, Bargas, Evelyne, Namara, Evelyne Mac, Combarnous, François, Yazbeck, Fatima, Gerard, Fabien, Metivier, Fabien, Parazols, Fabien, Soulis, Fabien, Garnier, Fabrice, Messaoudene, Fadhila Pech, Haidar, Fadi, Boullenger, Fanny, Lepeytre, Fanny, Leroy, Fanny, Frejate, Fares, Bellahsene, Farid, Bellhasene, Farid, Saidani, Farid, Toure, Fatouma, Kriaa, Faycal, Nemmar, Fazia, Vetromile, Fernando, Chalmin, Florence, Lucats, Florence, Sens, Florence, Villemain, Florence, Plasse, Florent, Lebhour, Fouad, Schillinger, Francis, Berge, Franck, Bourdon, Franck, Bridoux, Franck, Reynaud, Franck, Babinet, Francois, Basse, Francois, Chantrel, Francois, Clair, Francois, Coulomb, Francois, De Cornelissen, Francois, Glowacki, Francois, Marchal, Francois, Maurice, Francois, Nobili, Francois, Pourreau, Francois, Provot, Francois, Amani, Francois Roux, Broux, Francoise, Bulte, Francoise, Heibel, Francoise, Leonetti, Francoise, Schott, Francoise Moussion, Le Roy, Frank, Besson, Frederic, Lavainne, Frederic, Tollis, Frederic, Bocquentin, Frederique, Meeus, Frederique, Vecina, Frederique, Von Ey, Friederike, Balit, Gabriel, Choukroun, Gabriel, Gruget, Gabriel, Huchard, Gabriel, Golea, Gabriella, Duneau, Gabrielle, Lefrancois, Gaelle, Pelle, Gaelle, Lebrun, Gaetan, Dumont, Genevieve, Brillet, Georges, Deschenes, Georges, Mourad, Georges, Stamatakis, Georges, Cazajous, Geraldine, D'ythurbide, Geraldine, Wiart, Geraldine Robitaille, Cardon, Gerard, Champion, Gerard, Deschodt, Gerard, Mangenot, Gerard, Motte, Gerard, Schortgen, Gerard, Boulahia, Ghada, Maakaroun, Ghassan, Michel, Ghylene Bourdat, Zanetta, Gilbert, Hufnagel, Gilles, Messier, Gilles, Piccoli, Giorgina, Desvergnes, Gregoire Couvrat, Bobrie, Guillaume, Bonnard, Guillaume, Clement, Guillaume, Jean, Guillaume, Queffeulou, Guillaume, Seret, Guillaume, Vernin, Guillaume, Delavaud, Guy, Lambrey, Guy, Rostoker, Guy, Poussard, Gwenaelle, Kesler, Gwenaelle Roussey, Leon, H., Aboubekr, Habib, Boulechfar, Hacene, Sekhri, Hacene, Hebibi, Hadia, Benalia, Hadjira, Fessi, Hafed, Atchia, Hafsabhai, Bittar, Haiat, Maiza, Hakim, Mazouz, Hakim, El Ali, Hamid, Bougrida, Hammouche, Van Der Pijl, Hans, Lokmane, Hassan, Izzedine, Hassane, Adda, Hassen, De Preneuf, Helene, Leray, Helene, Philippot, Helene, Boulanger, Henri, Merault, Henri, Renaud, Henri, Bonarek, Herve, Maheut, Herve, Nzeyimana, Hilaire, Mehama, Hocine, Zaidi, Hocine, Weclawiak, Hugo, Flodrops, Hugues, Karaaslan, Huseyin, Haskour, Ibrahim, Belhadj, Ihssen, Almoubarak, Imad, Haddad, Imad, Castellano, Ines, Ferrandiz, Ines, Daniliuc, Ioana, Darie, Ioana, Enache, Ioana, Prunescu, Ionut, Djiconkpode, Irenee, Shahapuni, Irina, Bouchoule, Isabelle, Devriendt, Isabelle, Kazes, Isabelle, Kolb, Isabelle, Landru, Isabelle, Poli, Isabelle, Rey, Isabelle, Segalen, Isabelle, Selcer, Isabelle, Vernier, Isabelle, Vrillon, Isabelle, Guenifi, Ismahane, Gheerbrandt, J. Dominique, Potier, Jacky, Becart, Jacques, Cledes, Jacques, Ducros, Jacques, Duvic, Jacques, Fourcade, Jacques, Gaultier, Jacques, Jurine, Jacques, Lebleu, Jacques, Ollier, Jacques, Charles, Jacques Ibsen, Yazji, Jamal, Mansour, Janette, Arnautou, Jean, Brocard, Jean, Carolfi, Jean, Montoriol, Jean, Gouin, Jean Baptiste, Palcoux, Jean Bernard, Bendini, Jean Christophe, Aldigier, Jean Claude, Alphonse, Jean Claude, Delbet, Jean Daniel, Bonne, Jean Francois, Cantin, Jean Francois, De Fremont, Jean Francois, Dessassis, Jean Francois, Subra, Jean Francois, Valentin, Jean Francois, Verdier, Jean Francois, Dion, Jean Jacques, Haultier, Jean Jacques, Montseny, Jean Jacques, Bacri, Jean Louis, Bouchet, Jean Louis, Mahe, Jean Luc, Chalopin, Jean Marc, Gabriel, Jean Marc, Hurot, Jean Marc, Lanau, Jean Marc, Batho, Jean Marie, Coulibaly, Jean Marie, Hardin, Jean Michel, Marc, Jean Michel, Poux, Jean Michel, Rebibou, Jean Michel, Tivollier, Jean Michel, Ottavioli, Jean Noel, Faucon, Jean Paul, Imiela, Jean Paul, Jaulin, Jean Paul, Masselot, Jean Paul, Ortiz, Jean Paul, Bourdenx, Jean Philippe, Devaux, Jean Philippe, Hammelin, Jean Philippe, Rivory, Jean Pierre, Wauquier, Jean Pierre, Larue, Jean Rene, Mondain, Jean Rene, Borde, Jean Sebastien, Virot, Jean Simon, Bosc, Jean Yves, Achiche, Jedjiga, Parasote, Jennifer, Diolez, Jeremie, Harambat, Jerome, Potier, Jerome, Sampol, Jerome, Mustel, Jihad, Lefevre, Jean Jacques, Maurizi, Jocelyne, Gamberoni, Joel, Claudeon, Joelle, Terzic, Joelle, Rogol, Joffrey, Sayegh, Johnny, Cardozo, Jorge, Brasseur, Jose, Guiserix, Jose, Barsumau, Joseph, Albaret, Julie, Beaume, Julie, Attias, Julie Sohier, Dehay, Julien, Hogan, Julien, Journet, Julien, Ott, Julien, Baleynaud, Juliette, Bacchetta, Justine, Faucher, Justine, Yousfi, Kamel, Dardim, Karim, Clabault, Karine, Moreau, Karine, Thomas, Kedna, Sirajedine, Khaled, Chedid, Khalil, El Kaeoui, Khalil, El Karoui, Khalil, Bouachi, Khedidja, Hue, Kheira, El Nasser, Khuzama, Akposso, Kodso, Kunz, Kristian, Bijak, Krzysztof, Kihal, Lilia, Rasoloarijaona, L., Harbouche, Laid, Bencheikh, Larbi, Lamriben, Larbie, Hanafi, Latifa, Parvez, Laura Braun, Champion, Laure, Croze, Laure, Eprinchard, Laure, Patrier, Laure, Nicolet, Laurence, Vrigneaud, Laurence, Duflot, Laurent, Mackaya, Leandre, Chenine, Leila, Odry, Leon, Tamiji, Lili Taghipour, Bouzar, Lilia Antri, Nga Messi, Liliane Ngango, Le Mouellic, Lionel, Mandart, Lise, Weis, Lise, Pouteau, Lise Marie, Georgieva, Lora, Vitanova, Lorita, Chalabi, Lotfi, Delvallez, Luc, Frimat, Luc, Fromentin, Luc, Marty, Luc, Monjot, Luc, Spataru, Luciana, Bessenay, Lucie, Boissinot, Lucie, Wajsbrot, Lucie, Rakoff, Lucien, Lebourg, Ludivine, Perez, Lydie, Lafage, Lyliane, Azzouz, Lynda, Dumoulin, Madeleine, Ouziala, Messaoud, Joseph, Maan, Brahimi, Mabrouk, Fat, Maeva Wong, Fort, Magalie, Nakhla, Magued, Abtahi, Mahdi, Albadawy, Mahen, Alouach, Mahmoud, Mezghani, Mahmoud, Daroux, Maite, Boukelmoune, Maklouf, Dhib, Malek, Touam, Malik, Dubau, Malina, Balde, Mamadou, Khoa, Man Nguyen, Ismer, Manfred, Mehdi, Manolie, Laforet, Manon, Bouiller, Marc, Eugene, Marc, Fila, Marc, Hazzan, Marc, Kribs, Marc, Ladriere, Marc, Lebot, Marc, Padilla, Marc, Souid, Marc, Marraoui, Marcel, Burbach, Maren, Manescu, Maria, Noguera Gonzalez, Maria Eugenia, Revenco, Mariana, Terrasse, Marianne, Essi, Marie, Macher, Marie Alice, Nogier, Marie Beatrice, Cazin, Marie Cecile, Schweitzer Camoin, Marie Christine, Thouret, Marie Christine, Hannaert, Marie Claude, Servel, Marie France, Chabannier, Marie Helene, Coudert Krier, Marie Jeanne, Catoliquot, Marie Noelle, Guillodo, Marie Paule, Gavard, Marie Sophie, Vairon Codaccioni, Marie Xaviere, Rabec, Marina, Freist, Marine, Gauthier, Marion, Lemaire, Marion, Mehrenberger, Marion, Venot, Marion, Pongas, Marios, Diant, Marlene Beaubrun, Levannier, Martial, Bertaux, Martine, Jablonski, Mathieu, Sacquepee, Mathieu, Dargelos, Mathilde, Lemoine, Mathilde, Tamain, Mathilde, Monge, Matthieu, Reberolle, Matthieu, Cousin, Maud, Francois, Maud, Baron, Maurice, Hoffmann, Maxime, Ingwiller, Maxime, Touzot, Maxime, Mohajer, Mederick, Maaz, Mehadji, Hanoy, Melanie, Marroc, Melanie, Cuny, Melodie, Van Der Straaten, Menno, Serveaux, Mf., Basteri, Michel, Chong, Michel Fen, Hecht, Michel, Massad, Michel, Normand, Michel, Olmer, Michel, Tolani, Michel, Tsimaratos, Michel, Hemery, Michele, Kessler, Michele, Esposito, Miguel, Shenouda, Milad, Kareche, Mimi, Khalili, Mina, Diaconita, Mirella, Rifard, Mohamad Khair, Aladib, Mohamed, Belmouaz, Mohamed, Brahim, Mohamed, Diouani, Mohamed, Cherif, Mohamed Fodil, Jamali, Mohamed, Maghlaoua, Mohamed, Meddeb, Mohamed, Ramdane, Mohamed, Rifaat, Mohamed, Islam, Mohamed Sharifull, Abbade, Mohamed Adnan, Amrandi, Mokhtar, Chawki, Mokhtar, Ciobotaru, Monica, Indrieis, Monica, Chanas, Monique, Hoarau, Monique, Tomeh, Monzer, Bellou, Moufida, Bouzernidj, Mouloud, Ammor, Mounia, Guergour, Mounir, Benzakour, Mountassir, Hachicha, Mourad, Coulibaly, Moussa, Smati, Mustafa, Al Morabiti, Mustapha, Amirou, Mustapha, Isnard, Myriam, Pastural, Myriam, Pujo, Myriam, Boumendjel, Nourredine, Majbri, Nabil, Goumri, Nabila, Mingat, Nadege, Bassilios, Nader, Kerkeni, Nadia, Sedrati, Nadia, Soltani, Nadia, Maroun, Nadine, Neyrat, Nadine, Luang, Nahn, El Esper, Najeh, Ammar, Naji, Ghali, Nasredine, Hamdini, Nasser, Noel, Natacha, Potelune, Natacha, Maisonneuve, Nathalie, Pertuiset, Nathalie, Raynal, Nathalie, Vittoz, Nathalie, Terki, Nazim, Castin, Nelly, Nankeu, Nestor, Bouvier, Nicolas, Keller, Nicolas, Legros, Nicolas, Peters, Nicolas, Quirin, Nicolas, Lefrancois, Nicole, Monnier, Nicole, Rance, Nicole, Bruckmann, Niels, Mertens, Noel, Lorcy, Nolwenn, Gilbert, Olivia, Coldefy, Olivier, Drouineau, Olivier, Dunand, Olivier, Fritz, Olivier, Imhoff, Olivier, Kourilsky, Olivier, Lavelle, Olivier, Moranne, Olivier, Papin, Olivier, Roques, Olivier, Le Maner, Ophelie, Benbrahim, Oussamah Fikri, Erina Torres, Pablo Antonio, Urena Torres, Pablo Antonio, Malvezzi, Paolo, Bindi, Pascal, Cluzel, Pascal, Fontanier, Pascal, Wheatley, Pascal, Depraetre, Pascale, Dubosq, Pascale, Halin, Pascale, Sebahoun, Pascale, Siohan, Pascale, Testevuide, Pascale, Deteix, Patrice, Nolen, Patrice, Hue, Patricia, Lemarchand, Patricia, Donnadieu, Patrick, Fievet, Patrick, Fohrer, Patrick, Francais, Patrick, Giraud, Patrick, Hallonet, Patrick, Henri, Patrick, Michaut, Patrick, Michaut, Patrick, Niaudet, Patrick, Pauly, Patrick, Thomas, Patrick, Deleaval, Patrik, Finielz, Paul, Stroumza, Paul, Yverneau, Paule Hardy, Caillard, Pauline, Palacin, Pedro, Aubertin, Perrine, Attias, Philippe, Brunet, Philippe, Chauveau, Philippe, Coindre, Philippe, Coste, Philippe, Dubot, Philippe, Fournier, Philippe, Hiernaux, Philippe, Jousset, Philippe, Yue Wah, Philippe Lan, Lang, Philippe, Le Cacheux, Philippe, Dupont, Philippe Martin, Michel, Philippe, Mirgaine, Philippe, Moriniere, Philippe, Nicoud, Philippe, Rieu, Philippe, Rousseau, Philippe, Sporer, Philippe, Thorel, Philippe, Vanhille, Philippe, Vigeral, Philippe, Zaoui, Philippe, Bataille, Pierre, Brignon, Pierre, Filipozzi, Pierre, Housset, Pierre, Peyronnet, Pierre, Ramperez, Pierre, Vautrin, Pierre, Michel, Pierre Alexandre, Westeel, Pierre Francois, Carron, Pierre Louis, Durand, Pierre Yves, Parent, Pierrot, Seniuta, Piotr, Kuentz, François, Fraoui, Rabah, Tetaz, Rachel, Amaria, Rachid, Bourouma, Rachid, Djeffal, Rachid, Nebbad, Rachida, Allal, Radia, Dimulescu, Radu, Boustani, Rafaat, Mesbah, Rafik, Makdassi, Raifat, Diab, Raji, Puslenghea, Raluca, Roura, Raoul, Khayat, Rateb, Azar, Raymond, Frayssinet, Raymond, Monkam, Regine, Boulahrouz, Rehouni, Boudet, Remi, Demontis, Renato, Gansey, Renaud, Cuvelier, Rene, Schmitt, Renee, Noordally, Reschad, Binaut, Reynald, Latif, Rezkallah, Dufresne, Richard, Montagnac, Richard, Reade, Richard, Genin, Robert, Novo, Robert, Fickl, Rocsana, Dufresne, Roger, Magnol, Roger, Issautier, Roland, Mortelette, Romain, Delaval, Ronan, Lohro, Ronan, M'barga, Roseline, Beau, S., Dupuis, Clémentine, Vidil, Marie Jacques, Hacini, Sabria, Dahmoune, Said, Lekhal, Saliha, Sakso, Salima Ahriz, Saksi, Salima, Citarda, Salvatore, Boubenider, Samir, Kassis, Samuel, Verhille, Sandra, Genestier, Sandrine, Muller, Sandrine, Krid, Saoussen, Richter, Sarah, Delbes, Sebastien, Mailliez, Sebastien, Veillon, Sebastien, Nony, Sébastien, Benarbia, Seddick, Beaudreuil, Severine, Benyaghla, Sidi Ali, Duquennoy, Simon, Baluta, Simona, Boncila, Simona, Mzoughi, Sonia, Ribal, Sonia, Acamer, Sophie, Chauvet, Sophie, Girerd, Sophie, Ozenne, Sophie, Parahy, Sophie, Duval, Sophie Rubens, Taque, Sophie, Menouer, Soraya, Chargui, Soumaya, Bataille, Stanislas, Barbier, Stephane, Billion, Stephane, Roueff, Stephane, Torner, Stephane, Martin, Stephane Jean, Coupel, Stephanie, Cloarec, Sylvie, Lavaud, Sylvie, Leou, Sylvie, Chatelet, T., Onesta, Tania, Benhabib, Tassadit, Bensalem, Tayeb, Dimulescu, Theodora, Sawadogo, Theophile, Hitze, Thibault Dolley, Baranger, Thierry, Boudemaghe, Thierry, Hannedouche, Thierry, Krummel, Thierry, Lobbedez, Thierry, Milcent, Thierry, Dervaux, Thomas, Guincestre, Thomas, Kofman, Thomas, Raphael, Thomas, Sadreux, Thomas, Ulinski, Tim, Roger, Tiphaine Guyon, Serrato, Tomas, Kofman, Tomek, Wong, Tony, Boubia, Toufik, Gbindoun, Ubald Assogba, Khuzaie, Usama, Caudwell, Valerie, Chatelet, Valerie, Crougneau, Valerie, De Precigout, Valerie, Drouillat, Valerie, Galantine, Valerie, Hugot, Valerie Granveau, Leroy, Valerie, Boubia, Veronique, Falque, Veronique, Fournier, Veronique, Queron, Veronique, Viviani, Veronique, Gueuttin, Victor, Panescu, Victor, Calonge, Victorio Menoyo, Nguyen, Viet, Allot, Vincent, Delattre, Vincent, Leduc, Vincent, Pradier, Vincent, Aglae, Violaine Emal, Badulescu, Viorica, Molina, Virginia, Besson, Virginie, Chaigne, Virginie, Jaber, Waddah, Boudi, Wael, El Haggan, Wael, Guillon, Wen Qin, Aneni, Wided Tabbi, Hanf, William, Kohn, Wladimir, Bellenfant, Xavier, Gaudry, Xavier Moreau, Delmas, Yahsou, Knefati, Yannick, Saingra, Yannick, Tirolien, Yannick, Mann, Youssef, Brunak, Yvan, Dimitrov, Yves, Doussy, Yves, Tanter, Yves, Benabid, Zaid, Soltani, Zaara, Boukerroucha, Zacharia, Takla, Zafer, Ramanantsialonina, Zana, Dickson, Zara, Tubail, Zead, Pour, Zoe Koochaki, Boukhalfa, Zohra, and Jacquot, Zohra

Abstract

The aim of this study was to estimate the incidence of COVID-19 disease in the French national population of dialysis patients, their course of illness and to identify the risk factors associated with mortality. Our study included all patients on dialysis recorded in the French REIN Registry in April 2020. Clinical characteristics at last follow-up and the evolution of COVID-19 illness severity over time were recorded for diagnosed cases (either suspicious clinical symptoms, characteristic signs on the chest scan or a positive reverse transcription polymerase chain reaction) for SARS-CoV-2. A total of 1,621 infected patients were reported on the REIN registry from March 16th, 2020 to May 4th, 2020. Of these, 344 died. The prevalence of COVID-19 patients varied from less than 1% to 10% between regions. The probability of being a case was higher in males, patients with diabetes, those in need of assistance for transfer or treated at a self-care unit. Dialysis at home was associated with a lower probability of being infected as was being a smoker, a former smoker, having an active malignancy, or peripheral vascular disease. Mortality in diagnosed cases (21%) was associated with the same causes as in the general population. Higher age, hypoalbuminemia and the presence of an ischemic heart disease were statistically independently associated with a higher risk of death. Being treated at a selfcare unit was associated with a lower risk. Thus, our study showed a relatively low frequency of COVID-19 among dialysis patients contrary to what might have been assumed.

Published
2020
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15. Decision Analysis for the Reintroduction of Bull Trout into the Lower Pend Oreille River, Washington.

Author

Benjamin, Joseph R., Brignon, William R., and Dunham, Jason B.

Subjects
DECISION making, TROUT, FISHWAYS, RIVERS, BUILDING operation management
Abstract

The decision to reintroduce a species can be difficult owing to conflicting opinions and objectives as well as uncertainty over the outcome. Structured decision making addresses these considerations by identifying realistic fundamental objectives and building achievable management alternatives within a quantitative modeling framework. The process is driven by participation of stakeholders that represent diverse objectives, policy mandates, and opinions regarding decision alternatives. We applied structured decision making to evaluate the reintroduction of Bull Trout Salvelinus confluentus into the lower Pend Oreille River in northeastern Washington State. We engaged stakeholders from tribal, municipal, county, state, and federal agencies to specify fundamental objectives, formulate feasible reintroduction decisions, and conceptualize a modeling framework that included biological information and stakeholder assumptions. Stakeholders requested iterative decision sets to determine the optimal recipient streams and release strategies. The optimal decision—based on the fundamental objective of maximizing adult abundance at year 10—was artificial propagation of 4,500 juvenile Bull Trout coupled with translocation of 25 adult migrants to be reintroduced into a tributary and lake system (Sullivan Lake/Harvey Creek) that produced at least 18% more adult fish relative to alternatives. Sensitivity analyses were robust to the identity of the recipient stream (i.e., Sullivan Lake/Harvey Creek was always the optimal recipient stream) but suggested that maximizing the number of artificially produced juveniles released could generate a similar number of adult Bull Trout as the coupled‐release strategy. Results also suggested that ensuring fish passage at Albeni Falls Dam on the main‐stem Pend Oreille River could increase the abundance of adult fish. The process followed for this case study can be adapted to similar decisions regarding reintroduction or other translocations of fish in other systems. [ABSTRACT FROM AUTHOR]

Published
2019
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18. Étude phénoménologique : l’expérience vécue de cadre de santé vis-à-vis des valeurs de l’équipe lors de l’intégration d’un nouveau soignant en Ehpad

Author

Dornet, Amandine, Brignon, Béatrice, and Long, Thierry

Abstract

L’intégration d’un nouveau soignant en établissements d’hébergement pour personnes âgées dépendantes est essentielle dans un contexte de manque d’attractivité des métiers du grand âge. En s’appuyant sur les approches culturalistes et interactionnistes de l’intégration, cette étude phénoménologique a pour but de connaître le rôle et l’expérience du cadre de santé dans la construction des valeurs de l’équipe lors de l’intégration. Elle vise à comprendre le management et la dynamique d’équipe mis en place ainsi que les conséquences sur l’intégration. Les résultats mettent en évidence les valeurs intégratives recherchées par les cadres de santé au sein des contraintes auxquelles ils sont confrontés. Une triade émerge in fine de cette recherche : valeurs, intégration, cohésion.

Published
2024
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19. Spatial and Temporal Segregation of Wild and Hatchery Winter Steelhead Populations in Eagle Creek, Oregon.

Author

Brignon, William R.

Subjects
FISH populations, STEELHEAD trout, HATCHERY fishes, FISH conservation, FISH spawning
Abstract

A segregated hatchery program promotes conservation by limiting the amount of overlap in return timing and spawning locations of hatchery- and natural-origin fish. The objective of the present study was to use radiotelemetry data collected from 2005 to 2007 to better understand the level of spatial and temporal segregation between hatchery and natural-origin steelheadOncorhynchus mykissin the Eagle Creek basin, Oregon. The analysis resulted in three key findings. First, hatchery-origin winter steelhead were unlikely to migrate into the North Fork Eagle Creek, a tributary that has historically lacked any hatchery releases or influence, suggesting a high level of segregation from the natural-origin population returning to that stream. Second, hatchery fish arrived at the lower fish ladder on Eagle Creek and at Eagle Creek National Fish Hatchery (NFH) earlier than natural-origin fish, suggesting that broodstock management practices to maintain an early returning hatchery stock (i.e., temporal segregation) have been somewhat successful. Finally, regardless of the differential arrival timing to Eagle Creek NFH, there is evidence of an increased probability of spatial and temporal overlap of the populations as the return progresses, and this may be explained by successful reproduction of hatchery-origin fish in main-stem Eagle Creek. Integrated and segregated hatchery programs should be monitored periodically to ensure that they are meeting their stated goals. Received October 12, 2016; accepted March 14, 2017 Published online May 4, 2017 [ABSTRACT FROM AUTHOR]

Published
2017
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20. Towards coherent combination of 61 fiber amplifiers

Author

Hartl, Ingmar, Carter, Adrian L., Heilmann, Anke, Le Dortz, Jérémy, Daniault, Louis, Fsaifes, Ihsan, Bellanger, Séverine, Antier, Marie, Bourderionnet, Jérôme, Larat, Christian, Lallier, Eric, Durand, Eric, Brignon, Arnaud, Simon-Boisson, Christophe, and Chanteloup, Jean-Christophe

Published
2018
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21. La combinaison cohérente de fibres amplificatrices

Author

Antier, Marie, Le Dortz, Jérémy, Bourderionnet, Jérôme, Lallier, Éric, Larat, Christian, Brignon, Arnaud, Antier, Marie, Le Dortz, Jérémy, Bourderionnet, Jérôme, Lallier, Éric, Larat, Christian, and Brignon, Arnaud

Abstract

Les propriétés intrinsèques des fibres amplificatrices en font des candidates idéales pour le développement de sources lasers de haute puissance. Ces sources trouvent de nombreuses applications dans des domaines aussi variés que l’industrie, la défense et la physique des particules. Dans ce dernier cas, des sources ultra-brèves et ultra-intenses permettent d’envisager l’accélération de protons pour la proton-thérapie ou encore le remplacement des synchrotrons actuels par des architectures ayant un rendement plus important et une meilleure compacité. Cependant, du fait du confinement de la lumière au coeur de la fibre, la puissance crête obtenue à partir d’une seule fibre amplificatrice reste limitée. La combinaison cohérente de plusieurs fibres amplificatrices en parallèle permet de s’affranchir de cette limitation.

Published
2015
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22. Méthode d’analyse d’une situation éthique pluridisciplinaire en santé : une recherche-action pour une culture commune en établissements de formation et de soins

Author

Brignon, Béatrice, Dollet, Denise, Saglietto, Christine, Wybo, Muriel, Mechard, Marie-Christine, Junker, Véronique, Koller, Sylviane, Barraya, Denise, Monthean, Martine, Boniffacy, Nadia, Bridi, Lila, and Laot, Michel

Abstract

L’apprentissage de l’éthique est au cœur de toute formation sanitaire. Pour favoriser la compréhension par l’étudiant de l’importance de la réflexion collective au bénéfice des usagers, les systèmes de l’alternance se sont rapprochés au sein d’une recherche-action (Kaddouri, 2009). Réunissant des membres d’instituts de formation et de soins, cette recherche avait pour finalité l’élaboration d’une méthode commune d’analyse d’une situation éthique. À partir de l’étude de démarches existantes, un outil synthétique et aisé dans son utilisation a été créé, puis testé auprès de professionnels et d’étudiants. Ayant été réajusté et validé par le Conseil pédagogique du département d’éthique et sciences humaines de la faculté de médecine de Nice, le modèle d’analyse pourra être diffusé dans l’ensemble des établissements concernés, qu’ils soient de formation ou de soins, en concertation avec les directions des différentes instances. L’apprentissage des étudiants dans l’analyse éthique pourra ensuite être étudié.

Published
2017
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23. Highly scalable femtosecond coherent beam combining demonstrated with 19 fibers

Author

Le Dortz, J., Heilmann, A., Antier, M., Bourderionnet, J., Larat, C., Fsaifes, I., Daniault, L., Bellanger, S., Simon Boisson, C., Chanteloup, J.-C., Lallier, E., and Brignon, A.

Abstract

Coherent beam combining in the femtosecond regime of a record number of 19 fibers is demonstrated. The interferometric phase measurement technique, particularly well suited to phase-lock a very large number of fibers, is successfully demonstrated in the femtosecond regime. A servo loop is implemented to control piezoelectric fiber stretchers for both phase and delay variation compensation. The residual phase errors are below λ/60  rms. Nearly 50% of the total energy is contained in the far-field central lobe. After compression, we obtain a combined pulse width of 300 fs identical to the master oscillator pulse width.

Published
2017

24. Mid-infrared laser beam steering based on Fourier transform OPO

Author

Bourderionnet, Jérôme, Brignon, Arnaud, Dolfi, Daniel, and Huignard, Jean-Pierre

Abstract

Inertia-less optical scanners are an essential building block for many systems, including remote sensing, spectroscopy, and optronics. Although many solutions provide efficient scanning devices in the visible to near-infrared spectral range today, none of these devices offers good performances in longer wavelengths like in the mid-IR range. The new rationale that is described in this paper is to take advantage of existing and well-proven steering techniques in the near IR and to reach mid-IR by frequency conversion in a specifically designed Fourier transform optical parametric oscillator.

Published
2017
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25. APPORTS ET LIMITES DE LA CLINIQUE DE L'ACTIVITÉ AU DÉVELOPPEMENT DE L'IDENTITÉ PROFESSIONNELLE DES ÉTUDIANTS INFIRMIERS.

Author

BRIGNON, BÉATRICE and RAVESTEIN, JEAN

Abstract

Copyright of Travail Humain is the property of Presses Universitaires de France and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2015
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26. Moving towards ambitious climate policies: Monetised health benefits from improved air quality could offset mitigation costs in Europe.

Author

Schucht, Simone, Colette, Augustin, Rao, Shilpa, Holland, Mike, Schöpp, Wolfgang, Kolp, Peter, Klimont, Zbigniew, Bessagnet, Bertrand, Szopa, Sophie, Vautard, Robert, Brignon, Jean-Marc, and Rouïl, Laurence

Subjects
CLIMATE change, ENVIRONMENTAL policy, HEALTH impact assessment, AIR quality, COST analysis
Abstract

Air quality and related health effects are not only affected by policies directly addressed at air pollution but also by other environmental strategies such as climate mitigation. This study addresses how different climate policy pathways indirectly bear upon air pollution in terms of improved human health in Europe. To this end, we put in perspective mitigation costs and monetised health benefits of reducing PM 2.5 (particles less than 2.5 μm in diameter) and ozone concentrations. Air quality in Europe and related health impacts were assessed using a comprehensive modelling chain, based on global and regional climate and chemistry-transport models together with a health impact assessment tool. This allows capturing both the impact of climate policy on emissions of air pollutants and the geophysical impact of climate change on air quality. Results are presented for projections at the 2050 horizon, for a set of consistent air pollution and climate policy scenarios, combined with population data from the UN's World Population Prospects, and are expressed in terms of morbidity and mortality impacts of PM 2.5 and ozone pollution and their monetised damage equivalent. The analysis shows that enforcement of current European air quality policies would effectively reduce health impacts from PM 2.5 in Europe even in the absence of climate policies (life years lost from the exposure to PM 2.5 decrease by 78% between 2005 and 2050 in the reference scenario), while impacts for ozone depend on the ambition level of international climate policies. A move towards stringent climate policies on a global scale, in addition to limiting global warming, creates co-benefits in terms of reduced health impacts (68% decrease in life years lost from the exposure to PM 2.5 and 85% decrease in premature deaths from ozone in 2050 in the mitigation scenario relative to the reference scenario) and air pollution cost savings (77%) in Europe. These co-benefits are found to offset at least 85% of the additional cost of climate policy in this region. [ABSTRACT FROM AUTHOR]

Published
2015
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32. Application of a risk-based approach to continuous underwater noise at local and subregional scales for the Marine Strategy Framework Directive.

Author

Verling, Emma, Miralles Ricós, Ramon, Bou-Cabo, Manuel, Lara, Guillermo, Garagouni, Maria, Brignon, Jean-Marc, and O'Higgins, Tim

Subjects
UNDERWATER noise, ENVIRONMENTAL monitoring
Abstract

The Marine Strategy Framework Directive's (MSFD) goal of achieving Good Environmental Status (GES) in European waters presents Member States (MS) with a significant challenge in measurement and monitoring of a suite of descriptors of GES, some of which are poorly understood. To address the burden for MSs of monitoring and measuring environmental status and trends over vast areas, provisions have been made for the use of risk-based approaches to assessment and monitoring. Here, a standardised risk-based approach is described, aligned with the articles of the directive and with the DAPSI(W)R(M) conceptual frame. This risk approach is then applied at two different spatial scales for the risks associated with continuous underwater noise (D11C2). The first case is a subregional scale application for the North East Atlantic assessing risk under data poor conditions while the second case focuses on the Bay of Biscay, using the same process but under data rich conditions. The parallel applications of the risk-based approach illustrate that it is a powerful tool that can provide useful outputs, even where significant data gaps and limitations in understanding exist. We demonstrate the adaptability and wider applicability of the risk-based approach and finally make recommendations as to how improvements in data availability and accessibility could increase the confidence in the outputs. [ABSTRACT FROM AUTHOR]

Published
2021
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33. Les « ichtyolites » (Actinopterygii) de la collection Jean-Baptiste Beurard (1745–1835) : intérêt historique et redécouverte de la série type d’Armigatus brevissimus(Blainville, 1818) du Cénomanien du Liban

Author

Brignon, Arnaud and Brignon, Arnaud

Abstract

Cet article souligne le rôle Jean-Baptiste Beurard dans l’histoire de la paléoichtyologie. Ancien chanoine de la cathédrale de Toul, il trouva après les affres des débuts de la Révolution un emploi d’agent du gouvernement attaché à l’administration des mines entre 1794 et 1815. Chargé de la surveillance des mines de mercure dans les nouveaux départements annexés par la France sur la rive gauche du Rhin, il redécouvrit en juillet 1799 le fameux gisement d’« ichtyolites» (poissons fossiles) imprégnés de cinabre de Münsterappel daté du Permien inférieur. Il envoya plusieurs spécimens dans des collections institutionnelles parisiennes. Des représentants de l’espèce Paramblypterus duvernoy(Agassiz, 1833) (Actinopterygii, Amblypteridae), probablement envoyés par Beurard avant 1809 d’après le témoignage de Barthélémy Faujas de Saint-Fond, ont été identifiés dans les collections du Muséum national d’Histoire Naturelle, Paris. Un autre spécimen ayant appartenu de manière incontestable à Beurard est conservé dans les collections Géosciences de Sorbonne Université et revêt un intérêt historique tout particulier. Beurard possédait également dans sa collection deux échantillons de poissons fossiles du Cénomanien de Haqel dans l’actuel Liban, qu’il avait reçu de son neveu Claude Charles Harmand (1784–1847), officier de marine, en 1817. À partir d’eux, Henri Marie Ducrotay de Blainville décrivit deux espèces qu’il nomma Clupea beurardiBlainville, 1818aet Clupea brevissimaBlainville, 1818a. La première n’est plus considérée comme valide et la seconde est aujourd’hui assignée au genre ArmigatusGrande, 1982(Actinopterygii, Clupeomorpha) dont elle est l’espèce type. Un de ces spécimens est conservé au Natural History Museum, Londres, et provient de la collection de William Willoughby Cole (1807–1886), comte d’Enniskillen, qui avait acquis une partie de la collection Beurard. Étiqueté par erreur Clupea beurardipar Beurard, cet échantillon porte en réalité les quatre syntypes d’Armigatus brevissimus. Un lectotype est désigné ici pour fixer le statut de cette espèce, certainement la plus abondante et la plus iconique du gisement de Haqel.

Published
2021
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35. The H2020 VERTIGO project towards tbit/s optical feeder links

Author

Cugny, Bruno, Sodnik, Zoran, Karafolas, Nikos, Le Kernec, A., Canuet, L., Maho, A., Sotom, M., Matter, D., Francou, L., Edmunds, J., Welch, M., Kehayas, E., Perlot, N., Krzyzek, M., Paraskevopoulos, Anagnostis, Leuthold, J., Horst, Y., Bourderionnet, J., Brignon, A., Lallier, E., Billault, V., Leviandier, L., Conan, J.-M., Védrenne, N., Lim, C. B., Montmerle-Bonnefois, A., Petit, C., Stampoulidis, L., Fehrenz, M., and Lehnigk-Emden, T.

Published
2021
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37. Nouvelles données historiques sur les premiers dinosaures trouvés en France

Author

Brignon, Arnaud and Brignon, Arnaud

Abstract

Cet article passe en revue les premières découvertes de dinosaures faites en France avant que le terme Dinosauria n’ait été introduit par Richard Owen en 1842. En mettant à part les premières découvertes du théropode Streptospondylus altdorfensisfaites au XVIIIesiècle par Charles Bacheley dans le Jurassique des Vaches Noires, les principaux résultats démontrés ici sont les suivants (par ordre chronologique) : 1) les premiers restes de dinosaures (dents de théropodes) du Calcaire de Caen (Bathonien) furent collectés par Arcisse de Caumont dans les carrières de Quilly en, ou avant, avril 1826 et la première mention de cette découverte fut publiée en 1827 ; 2) les restes de théropode que William Buckland avait observés en octobre 1826 dans le Cabinet d’Histoire naturelle de Besançon furent signalés dans une publication dès 1830 ; 3) la première mention à un dinosaure du Jurassique supérieur du Boulonnais fut longtemps considérée avoir été celle faite par Constant Prévost en 1839. Des dents d’un théropode et d’un dinosaure herbivore furent, semble-t-il, découvertes dans ces formations par Eugène Robert en automne 1833. Une autre dent de théropode, celle-ci identifiable de manière incontestable, fut collectée en, ou avant, juillet 1835 par Bruno Marmin comme en atteste une lettre inédite à Jules Desnoyers ; 4) Le genre PoekilopleuronEudes-Deslongchamps, 1836 et son espèce type P. bucklandiiEudes-Deslongchamps, 1836, du Calcaire de Caen (Bathonien moyen), ont été créés de manière valide en 1836 ; 5) l’humérus de sauropode découvert dans le Crétacé supérieur de la plaine de Lisle près de Périgueux et figuré par Paul Gervais en 1852 fut donné au Muséum d’Histoire naturelle à Paris par un certain Simon Bornet en 1841 ; 6) l’humérus de sauropode du grès vert (Albien) de Bédoin près du mont Ventoux, décrit par Gervais en 1852 sous le nom d’Aepisaurus elephantinus, fut découvert par Prosper Renaux en 1841. Ce dernier effectua des dessins du spécimen à partir desquels une lithographie restée inédite fut réalisée. Renaux est ainsi le premier à avoir découvert et étudié un dinosaure, authentifié de manière incontestable, dans le Crétacé provençal. Les affinités de cet os avec les genres Megalosauruset Iguanodonfurent reconnues par Henri Marie Ducrotay de Blainville dès 1842.

Published
2018
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39. Le pôle de santé publique du centre hospitalier de l’Ouest Guyanais : une structuration originale et intégrée pour lutter contre les inégalités sociales de santé

Author

Jolivet, A. and Brignon, J.

Abstract

Le centre hospitalier de l’Ouest Guyanais (CHOG), à Saint-Laurent du Maroni, est un établissement atypique, dû à son positionnement géographique, à la frontière avec le Suriname et son éloignement de la capitale régionale Cayenne (250 km). C’est le seul établissement hospitalier de recours sur un territoire de 44 000 km2 pour une population drainée de plus de 80 000 habitants. Parmi les particularités de l’Ouest Guyanais, notons : une population en forte croissance, jeune, pluriethnique et mobile, des indicateurs sanitaires et socio-économiques préoccupants et une offre de soins et de santé insuffisante. La création d’un pôle de santé publique (décembre 2013) au CHOG est issue d’une volonté affirmée de l’établissement de répondre aux enjeux de santé publique sur son bassin de population et de lutter contre les inégalités sociales de santé.

Published
2016
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44. Adverse events associated with currently used medical treatments for cystinuria and treatment goals: results from a series of 442 patients in France.

Author

Prot-Bertoye C, Lebbah S, Daudon M, Tostivint I, Jais JP, Lillo-Le Louët A, Pontoizeau C, Cochat P, Bataille P, Bridoux F, Brignon P, Choquenet C, Combe C, Conort P, Decramer S, Doré B, Dussol B, Essig M, Frimat M, Gaunez N, Joly D, Le Toquin-Bernard S, Méjean A, Meria P, Morin D, N'Guyen HV, Normand M, Pietak M, Ronco P, Saussine C, Tsimaratos M, Friedlander G, Traxer O, Knebelmann B, and Courbebaisse M

Subjects
Adolescent, Adult, Aged, Child, Child, Preschool, Drug-Related Side Effects and Adverse Reactions, Female, France, Humans, Hydrogen-Ion Concentration, Infant, Male, Middle Aged, Penicillamine adverse effects, Penicillamine therapeutic use, Retrospective Studies, Sodium Bicarbonate adverse effects, Sodium Bicarbonate therapeutic use, Tiopronin adverse effects, Tiopronin therapeutic use, Treatment Outcome, Urinalysis, Young Adult, Cystinuria drug therapy, Cystinuria prevention & control
Abstract

Objective: To evaluate medical treatments, in terms of adverse events (AEs) and therapeutic goals, in a large series of patients with cystinuria., Patients and Methods: Data from 442 patients with cystinuria were recorded retrospectively. Crystalluria was studied in 89 patients. A mixed-effects logistic regression model was used to estimate how urine pH, specific gravity and cysteine-binding thiols (CBT) correlate with risk of cystine crystalluria., Results: Alkalizing agents and CBT agents were given to 88.8% (n = 381) and 55.3% (n = 238) of patients, respectively. Gastrointestinal AEs were reported in 12.3%, 10.4% and 2.6% of patients treated with potassium bicarbonate, potassium citrate and sodium bicarbonate, respectively (P = 0.008). The percentages of patients who experienced at least one AE with tiopronin (24.6%) and with D-penicillamine (29.5%) were similar (P = 0.45). Increasing urine pH and decreasing urine specific gravity significantly reduced the risk of cystine crystalluria, whereas D-penicillamine and tiopronin treatments did not reduce this risk (odds ratio [OR] 1 for pH ≤6.5; OR 0.52 [95% confidence interval {95% CI} 0.28-0.95] for 7.0 8.0, P <0.001)., Conclusion: Adverse events were frequent with D-penicillamine and tiopronin. Alkaline hyperdiuresis was well tolerated and reduced cystine crystalluria. Urine specific gravity ≤1.005 and urine pH >7.5, while warning about calcium-phosphate crystallization, should be the goals of medical therapy., (© 2019 The Authors BJU International © 2019 BJU International Published by John Wiley & Sons Ltd.)

Published
2019
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45. CKD and Its Risk Factors among Patients with Cystinuria.

Author

Prot-Bertoye C, Lebbah S, Daudon M, Tostivint I, Bataille P, Bridoux F, Brignon P, Choquenet C, Cochat P, Combe C, Conort P, Decramer S, Doré B, Dussol B, Essig M, Gaunez N, Joly D, Le Toquin-Bernard S, Méjean A, Meria P, Morin D, N'Guyen HV, Noël C, Normand M, Pietak M, Ronco P, Saussine C, Tsimaratos M, Friedlander G, Traxer O, Knebelmann B, and Courbebaisse M

Subjects
Adolescent, Adult, Age of Onset, Aged, Aged, 80 and over, Child, Child, Preschool, Comorbidity, Cystinuria diagnosis, Cystinuria therapy, Delayed Diagnosis, Female, France epidemiology, Glomerular Filtration Rate, Humans, Infant, Male, Middle Aged, Nephrectomy, Prevalence, Renal Insufficiency, Chronic pathology, Renal Insufficiency, Chronic physiopathology, Retrospective Studies, Risk Factors, Sex Factors, Young Adult, Cystinuria epidemiology, Hypertension epidemiology, Renal Insufficiency, Chronic epidemiology
Abstract

Background and Objectives: Cystinuria is an autosomal recessive disorder affecting renal cystine reabsorption; it causes 1% and 8% of stones in adults and children, respectively. This study aimed to determine epidemiologic and clinical characteristics as well as comorbidities among cystinuric patients, focusing on CKD and high BP., Design, Setting, Participants, & Measurements: This retrospective study was conducted in France, and involved 47 adult and pediatric nephrology and urology centers from April 2010 to January 2012. Data were collected from 442 cystinuric patients., Results: Median age at onset of symptoms was 16.7 (minimum to maximum, 0.3-72.1) years and median diagnosis delay was 1.3 (0-45.7) years. Urinary alkalinization and cystine-binding thiol were prescribed for 88.8% and 52.2% of patients, respectively, and 81.8% had at least one urological procedure. Five patients (1.1%, n=4 men) had to be treated by dialysis at a median age of 35.0 years (11.8-70.7). Among the 314 patients aged ≥16 years, using the last available plasma creatinine, 22.5% had an eGFR≥90 ml/min per 1.73 m(2) (calculated by the Modification of Diet in Renal Disease equation), whereas 50.6%, 15.6%, 7.6%, 2.9%, and 0.6% had an eGFR of 60-89, 45-59, 30-44, 15-29, and <15, respectively. Among these 314 patients, 28.6% had high BP. In multivariate analysis, CKD was associated with age (odds ratio, 1.05 [95% confidence interval, 1.03 to 1.07]; P<0.001), hypertension (3.30 [1.54 to 7.10]; P=0.002), and severe damage of renal parenchyma defined as a past history of partial or total nephrectomy, a solitary congenital kidney, or at least one kidney with a size <10 cm in patients aged ≥16 years (4.39 [2.00 to 9.62]; P<0.001), whereas hypertension was associated with age (1.06 [1.04 to 1.08]; P<0.001), male sex (2.3 [1.3 to 4.1]; P=0.003), and an eGFR<60 ml/min per 1.73 m(2) (2.7 [1.5 to 5.1]; P=0.001)., Conclusions: CKD and high BP occur frequently in patients with cystinuria and should be routinely screened., (Copyright © 2015 by the American Society of Nephrology.)

Published
2015
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