4 results on '"G. A., Viel"'
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2. How to improve medical students’ knowledge using a social network?
- Author
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J. Adjedj, Y. Sbissa, M. Sochala, Fabien Picard, Olivier Varenne, G. Kanellopoulos, Q. Fischer, L. Fanon, P Nhan, and G. Durand Viel
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education.field_of_study ,Medical education ,Social network ,business.industry ,Population ,Medicine ,Learning Management ,Cardiology and Cardiovascular Medicine ,business ,Positive correlation ,education ,Multiple choice - Abstract
Background The recent expansion of e-learning in universities could serve to improve students’ knowledge through pedagogic educational tools. Our aim was to develop a new, easy-to-use, daily learning management system to improve students’ knowledge in cardiology. Methods We developed a database of 258 multiple choice questions (MCQ) for the medical students of Paris Descartes University. MCQs were sent daily through a specific social network and adapted to individual students’ needs to provide personalized follow-up. A final evaluation was performed at 3 months, including 25 previously sent (part 1: 25 points [pts]) and 25 new MCQs (part 2: 25 pts). We compared the results of this final evaluation according to daily participation of each student. Results A total of 255 medical students (64% female) participated in the MCQ program, with a daily participation rate of 71%. A total of 58.8% of the students were in year 6, 25.5% in year 5, and 15.7% in year 4. As much as 63% used their smartphone and 37% used their desktop to answer the MCQs. Time to answer an MCQS was 50 ± 4 seconds. The proportion of right answers overall was 26%. Finally, 190 students underwent the final evaluation. There was a positive correlation between participation rate and score to the evaluation (R2 = 0.28, P 90% had a better score than students with participation rate Fig. 1 ). Conclusion This study suggests that our learning management system was well adopted by the medical students with a high rate of daily. The program was most effective for the students with the higher rate of daily participation implying that it is an effective tool to improve students’ knowledge. A mobile application of the program is being developed and will be tested in a larger population of medical students.
- Published
- 2018
- Full Text
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3. Size-exclusion chromatographic reconstitution of the bovine brain benzodiazepine receptor. Effects of lipid environment on the binding characteristics
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G T, Viel, Q, Yang, P, Lundahl, K, Ensing, and R A, de Zeeuw
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Brain Chemistry ,Detergents ,Serum Albumin, Bovine ,Flunitrazepam ,Receptors, GABA-A ,Lipids ,Freezing ,Liposomes ,Chromatography, Gel ,Animals ,Cattle ,GABA Modulators ,Deoxycholic Acid ,Protein Binding - Abstract
The benzodiazepine receptor from calf brain was solubilized with sodium deoxycholate (2 mg/ml) in the presence of 0.5 M KCl and protease inhibitors, and bound flunitrazepam with an equilibrium dissociation constant (Kd) of 2.7 +/- 1.2 nM and with 0.40 +/- 0.04 pmol binding sites per mg protein (Bmax). Up to 60% of the benzodiazepine binding sites (average 25%) could be reconstituted in lipid vesicles, upon size-exclusion chromatography of protein-detergent-lipid mixtures on Sephadex G-50 Medium for detergent depletion. The flunitrazepam affinity for the reconstituted receptor varied with the lipid composition (Kd 1.4-4 nM). Freezing and thawing increased the size of the small proteoliposomes obtained by chromatographic reconstitution and, on the average, doubled the number of operative flunitrazepam binding sites. When the proteoliposomes were stored at -20 degrees C or -80 degrees C or in lyophilized state, the receptor retained its benzodiazepine binding affinity and Bmax over a period of 2 months.
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- 1997
4. Euclid preparation: VII. Forecast validation for Euclid cosmological probes
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Ivan Lloro, Peter Schneider, S. Ilić, Elisabetta Maiorano, Andrea Zacchei, E. Franceschi, A. Balaguera-Antolinez, M. Frailis, Fabio Pasian, S. Kermiche, S. Paltani, B. Gillis, S. Casas, Ralf Bender, Jason Rhodes, Javier Graciá-Carpio, Luca Valenziano, R. Kohley, Franck Ducret, Mauro Roncarelli, S. Farrens, Sotiria Fotopoulou, Remi A. Cabanac, V. F. Cardone, Jean Coupon, Paula Gomez-Alvarez, Herve Aussel, S. Galeotta, Alain Blanchard, Lucia Pozzetti, Jean-Luc Starck, F. Torradeflot, P. B. Lilje, Ole Marggraf, S. Bardelli, Massimo Brescia, L. Stanco, J. Carretero, Rafael Toledo-Moreo, G. A. Verdoes Kleijn, S. Yahia-Cherif, Richard Massey, Knud Jahnke, G. Polenta, Michele Moresco, Enrico Bozzo, M. Poncet, Stefano Cavuoti, S. Brau-Nogue, G. Sirri, Stefano Andreon, Elisabetta Majerotto, D. Tavagnacco, Isaac Tutusaus, Valeria Pettorino, Carmelita Carbone, D. Di Ferdinando, Davide Maino, Felix Hormuth, Sebastien Clesse, F. Dubath, Simona Mei, A. Boucaud, F. J. Castander, C. A. J. Duncan, R. Cledassou, Z. Sakr, E. Romelli, Robert C. Nichol, E. Munari, Henk Hoekstra, V. Capobianco, Hélène M. Courtois, Stefano Camera, B. Kubik, E. Medinaceli, J. J. Metge, M. H. Fabricius, P. Tallada-Crespí, Matteo Viel, S. Dusini, Andrea Cimatti, Emanuel Rossetti, Yannick Mellier, D. Bonino, C. Padilla, Benjamin J. Metcalf, K. Markovic, Andrea Biviano, Andy Taylor, F. Lacasa, E. Zucca, P. Franzetti, S. de la Torre, A. Da Silva, Julien Zoubian, W. Gillard, Carlo Burigana, Marco Baldi, Martin Kilbinger, L. Conversi, Will J. Percival, T. Vassallo, Yu Wang, Marco Castellano, C. C. Kirkpatrick, V. Yankelevich, Giuseppe D. Racca, Y. Copin, S. Niemi, Domenico Sapone, Pablo Fosalba, G. Congedo, N. Fourmanoit, F. Raison, Enzo Branchini, A. Secroun, N. Martinet, M. Martinelli, Mark Cropper, Ismael Tereno, M. Tenti, A. Cappi, Sandrine Pires, C. J. Conselice, Eric V. Linder, Giulio Fabbian, H. Israel, G. Meylan, Alkistis Pourtsidou, Leonardo Corcione, X. Dupac, Lauro Moscardini, Carlo Giocoli, E. Keihänen, Roberto P. Saglia, F. Grupp, Luigi Guzzo, Ricard Casas, Ariel G. Sánchez, A. Renzi, V. Scottez, Martin Kunz, Federico Marulli, M. Fumana, C. Colodro-Conde, F. Sureau, Sebastiano Ligori, Achille A. Nucita, Hannu Kurki-Suonio, Thomas D. Kitching, Jarle Brinchmann, C. S. Carvalho, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Eurecat, Ctr Tecnol Catalunya, Placa Ciencia 2, Manresa 08242, Spain, Corporate technology Siemens, Siemens AG [Munich], Département d'Astrophysique (ex SAP) (DAP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre Jean Perrin [Clermont-Ferrand] (UNICANCER/CJP), UNICANCER, INAF - Osservatorio Astronomico di Brera (OAB), Istituto Nazionale di Astrofisica (INAF), Max Planck Institute for Extraterrestrial Physics (MPE), Max-Planck-Gesellschaft, Ludwig-Maximilians-Universität München (LMU), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), INAF - Osservatorio Astronomico di Capodimonte (OAC), Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Centre National d'Études Spatiales [Toulouse] (CNES), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Durham University, Université de Genève = University of Geneva (UNIGE), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica (Milano), Università degli Studi di Milano = University of Milan (UNIMI), Department of Surgical Oncology, University of Groningen [Groningen], Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Milieux aquatiques, écologie et pollutions (UR MALY), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Centre International de Recherches Médicales de Franceville (CIRMF), Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Department of Biogeochemical Integration [Jena], Max Planck Institute for Biogeochemistry (MPI-BGC), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Euclid Collaboration, Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Université Paris Diderot - Paris 7 (UPD7), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Sorbonne Université (SU)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Euclid, Blanchard A., Camera S., Carbone C., Cardone V.F., Casas S., Clesse S., Ilic S., Kilbinger M., Kitching T., Kunz M., Lacasa F., Linder E., Majerotto E., Markovic K., Martinelli M., Pettorino V., Pourtsidou A., Sakr Z., Sanchez A.G., Sapone D., Tutusaus I., Yahia-Cherif S., Yankelevich V., Andreon S., Aussel H., Balaguera-Antolinez A., Baldi M., Bardelli S., Bender R., Biviano A., Bonino D., Boucaud A., Bozzo E., Branchini E., Brau-Nogue S., Brescia M., Brinchmann J., Burigana C., Cabanac R., Capobianco V., Cappi A., Carretero J., Carvalho C.S., Casas R., Castander F.J., Castellano M., Cavuoti S., Cimatti A., Cledassou R., Colodro-Conde C., Congedo G., Conselice C.J., Conversi L., Copin Y., Corcione L., Coupon J., Courtois H.M., Cropper M., Da Silva A., De La Torre S., Di Ferdinando D., Dubath F., Ducret F., Duncan C.A.J., Dupac X., Dusini S., Fabbian G., Fabricius M., Farrens S., Fosalba P., Fotopoulou S., Fourmanoit N., Frailis M., Franceschi E., Franzetti P., Fumana M., Galeotta S., Gillard W., Gillis B., Giocoli C., Gomez-Alvarez P., Gracia-Carpio J., Grupp F., Guzzo L., Hoekstra H., Hormuth F., Israel H., Jahnke K., Keihanen E., Kermiche S., Kirkpatrick C.C., Kohley R., Kubik B., Kurki-Suonio H., Ligori S., Lilje P.B., Lloro I., Maino D., Maiorano E., Marggraf O., Martinet N., Marulli F., Massey R., Medinaceli E., Mei S., Mellier Y., Metcalf B., Metge J.J., Meylan G., Moresco M., Moscardini L., Munari E., Nichol R.C., Niemi S., Nucita A.A., Padilla C., Paltani S., Pasian F., Percival W.J., Pires S., Polenta G., Poncet M., Pozzetti L., Racca G.D., Raison F., Renzi A., Rhodes J., Romelli E., Roncarelli M., Rossetti E., Saglia R., Schneider P., Scottez V., Secroun A., Sirri G., Stanco L., Starck J.-L., Sureau F., Tallada-Crespi P., Tavagnacco D., Taylor A.N., Tenti M., Tereno I., Toledo-Moreo R., Torradeflot F., Valenziano L., Vassallo T., Verdoes Kleijn G.A., Viel M., Wang Y., Zacchei A., Zoubian J., Zucca E., Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Météo France-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université Fédérale Toulouse Midi-Pyrénées-Centre National d'Études Spatiales [Toulouse] (CNES)-Météo France-Université Toulouse III - Paul Sabatier (UT3), Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA), Academy of Finland, European Commission, Agenzia Spaziale Italiana, Belgian Science Policy Office, Canadian Euclid Consortium, Centre National D'Etudes Spatiales (France), Danish Space Research Institute, German Centre for Air and Space Travel, Fundação para a Ciência e a Tecnologia (Portugal), Ministerio de Economía y Competitividad (España), National Aeronautics and Space Administration (US), Netherlands Research School for Astronomy, Norwegian Space Agency, Romanian Space Agency, State Secretariat for Education, Research and Innovation (Switzerland), Swiss Space Office, UK Space Agency, Ministero dell'Istruzione, dell'Università e della Ricerca, California Institute of Technology, Ministerio de Ciencia, Innovación y Universidades (España), International Max Planck Research Schools, Swiss National Science Foundation, Blanchard, A., Camera, S., Carbone, C., Cardone, V. F., Casas, S., Clesse, S., Ilić, S., Kilbinger, M., Kitching, T., Kunz, M., Lacasa, F., Linder, E., Majerotto, E., Markovič, K., Martinelli, M., Pettorino, V., Pourtsidou, A., Sakr, Z., Sánchez, A. G., Sapone, D., Tutusaus, I., Yahia-Cherif, S., Yankelevich, V., Andreon, S., Aussel, H., Balaguera-Antolínez, A., Baldi, M., Bardelli, S., Bender, R., Biviano, A., Bonino, D., Boucaud, A., Bozzo, E., Branchini, E., Brau-Nogue, S., Brescia, M., Brinchmann, J., Burigana, C., Cabanac, R., Capobianco, V., Cappi, A., Carretero, J., Carvalho, C. S., Casas, R., Castander, F. J., Castellano, M., Cavuoti, S., Cimatti, A., Cledassou, R., Colodro-Conde, C., Congedo, G., Conselice, C. J., Conversi, L., Copin, Y., Corcione, L., Coupon, J., Courtois, H. M., Cropper, M., Da, Silva, de la, Torre, Di, Ferdinando, D., Dubath, F., Ducret, F., Duncan, C. A. J., Dupac, X., Dusini, S., Fabbian, G., Fabriciu, M., Farren, S., Fosalba, P., Fotopoulou, S., Fourmanoit, N., Fraili, M., Franceschi, E., Franzetti, P., Fumana, M., Galeotta, S., Gillard, W., Gilli, B., Giocoli, C., Gómez-Alvarez, P., Graciá-Carpio, J., Grupp, F., Guzzo, L., Hoekstra, H., Hormuth, F., Israel, H., Jahnke, K., Keihanen, E., Kermiche, S., Kirkpatrick, C. C., Kohley, R., Kubik, B., Kurki-Suonio, H., Ligori, S., Lilje, P. B., Lloro, I., Maino, D., Maiorano, E., Marggraf, O., Martinet, N., Marulli, F., Massey, R., Medinaceli, E., Mei, S., Mellier, Y., Metcalf, B., Metge, J. J., Meylan, G., Moresco, M., Moscardini, L., Munari, E., Nichol, R. C., Niemi, S., Nucita, A. A., Padilla, C., Paltani, S., Pasian, F., Percival, W. J., Pire, S., Polenta, G., Poncet, M., Pozzetti, L., Racca, G. D., Raison, F., Renzi, A., Rhode, J., Romelli, E., Roncarelli, M., Rossetti, E., Saglia, R., Schneider, P., Scottez, V., Secroun, A., Sirri, G., Stanco, L., Starck, J., -L., Sureau, F., Tallada-Crespí, P., Tavagnacco, D., Taylor, A. N., Tenti, M., Tereno, I., Toledo-Moreo, R., Torradeflot, F., Valenziano, L., Vassallo, T., Verdoes, Kleijn, G. A., Viel, M., Wang, Y., Zacchei, A., Zoubian, J., Zucca, Ilic, S., Markovic, K., Sanchez, A. G., Balaguera-Antolinez, A., Da Silva, A., De La Torre, S., Di Ferdinando, D., Dubath, F., Ducret, F., Duncan, C. A. J., Dupac, X., Dusini, S., Fabbian, G., Fabricius, M., Farrens, S., Fosalba, P., Fotopoulou, S., Fourmanoit, N., Frailis, M., Franceschi, E., Franzetti, P., Fumana, M., Galeotta, S., Gillard, W., Gillis, B., Giocoli, C., Gomez-Alvarez, P., Gracia-Carpio, J., Grupp, F., Guzzo, L., Hoekstra, H., Hormuth, F., Israel, H., Jahnke, K., Keihanen, E., Kermiche, S., Kirkpatrick, C. C., Kohley, R., Kubik, B., Kurki-Suonio, H., Ligori, S., Lilje, P. B., Lloro, I., Maino, D., Maiorano, E., Marggraf, O., Martinet, N., Marulli, F., Massey, R., Medinaceli, E., Mei, S., Mellier, Y., Metcalf, B., Metge, J. J., Meylan, G., Moresco, M., Moscardini, L., Munari, E., Nichol, R. C., Niemi, S., Nucita, A. A., Padilla, C., Paltani, S., Pasian, F., Percival, W. J., Pires, S., Polenta, G., Poncet, M., Pozzetti, L., Racca, G. D., Raison, F., Renzi, A., Rhodes, J., Romelli, E., Roncarelli, M., Rossetti, E., Saglia, R., Schneider, P., Scottez, V., Secroun, A., Sirri, G., Stanco, L., Starck, J. -L., Tallada-Crespi, P., Verdoes Kleijn, G. A., Viel, M., Wang, Y., Zacchei, A., Zoubian, J., Zucca, E., Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), University of Geneva [Switzerland], Università degli Studi di Milano [Milano] (UNIMI), Institut Régional de Médecine Physique et de Réadaptation Louis Pierquin [Nancy] (IRR Louis Pierquin), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Department of Physics, Helsinki Institute of Physics, and Astronomy
- Subjects
cosmology: observations / cosmological parameters / cosmology: theory ,Cosmological parameter ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,DARK ENERGY CONSTRAINTS ,IMPACT ,ANGULAR POWER SPECTRA ,Cosmological parameters ,Cosmology: observations ,Cosmology: theory ,FOS: Physical sciences ,observation [Cosmology] ,GALAXY REDSHIFT SURVEYS ,Astrophysics ,Cosmological constant ,Astrophysics::Cosmology and Extragalactic Astrophysics ,ACOUSTIC-OSCILLATIONS ,01 natural sciences ,Measure (mathematics) ,Cosmology: observation ,PRIMORDIAL NON-GAUSSIANITY ,Set (abstract data type) ,INFORMATION-CONTENT ,HALO-MODEL ,theory [Cosmology] ,cosmology: theory ,0103 physical sciences ,cosmological parameters ,observations [Cosmology] ,Cluster analysis ,010303 astronomy & astrophysics ,Astrophysique ,Weak gravitational lensing ,Physics ,COSMIC cancer database ,010308 nuclear & particles physics ,Astronomy and Astrophysics ,INTRINSIC ALIGNMENTS ,115 Astronomy, Space science ,MASSIVE NEUTRINOS ,Space and Planetary Science ,cosmology: observations ,astro-ph.CO ,Dark energy ,Baryon acoustic oscillations ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Algorithm ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Aims. The Euclid space telescope will measure the shapes and redshifts of galaxies to reconstruct the expansion history of the Universe and the growth of cosmic structures. The estimation of the expected performance of the experiment, in terms of predicted constraints on cosmological parameters, has so far relied on various individual methodologies and numerical implementations, which were developed for different observational probes and for the combination thereof. In this paper we present validated forecasts, which combine both theoretical and observational ingredients for different cosmological probes. This work is presented to provide the community with reliable numerical codes and methods for Euclid cosmological forecasts. Methods. We describe in detail the methods adopted for Fisher matrix forecasts, which were applied to galaxy clustering, weak lensing, and the combination thereof. We estimated the required accuracy for Euclid forecasts and outline a methodology for their development. We then compare and improve different numerical implementations, reaching uncertainties on the errors of cosmological parameters that are less than the required precision in all cases. Furthermore, we provide details on the validated implementations, some of which are made publicly available, in different programming languages, together with a reference training-set of input and output matrices for a set of specific models. These can be used by the reader to validate their own implementations if required. Results. We present new cosmological forecasts for Euclid. We find that results depend on the specific cosmological model and remaining freedom in each setting, for example flat or non-flat spatial cosmologies, or different cuts at non-linear scales. The numerical implementations are now reliable for these settings. We present the results for an optimistic and a pessimistic choice for these types of settings. We demonstrate that the impact of cross-correlations is particularly relevant for models beyond a cosmological constant and may allow us to increase the dark energy figure of merit by at least a factor of three., 0, info:eu-repo/semantics/published
- Published
- 2020
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