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1. Impact de la « seniorisation » sur les prescriptions d'examens de biologie dans un service d'accueil et des urgences

Author

P. Nelh, R Thirree, Ph. Jean, D. Torro, P. Gerbeaux, and V. Ledoray

Subjects
Anesthesiology and Pain Medicine, General Medicine
Abstract

Resume Cette etude prospective a evalue l'evolution des prescriptions d'examens biologiques courants (PBC) lors de la seniorisation d'un service d'accueil et des urgences (Sau) de CHU, fonctionnant selon deux modalites : periode P1 (residents seuls) et periode P2 (residents encadres par un senior et formes a la medecine d'urgence). Chaque periode a dure 30 jours et a inclus 5 948 patients. Les recrutements lors de ces periodes etaient comparables. La prise en charge medicale a ete jugee de bonne qualite (analyse des comptes rendus de sortie et plaintes deposees). Entre P1 et P2 le nombre de patients ayant eu des PBC a diminue de 38,8 % (P

Published
2000
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2. Médicalisation et formation spécifique à la médecine d'urgence

Author

V. Ledoray, P. Gerbeaux, Ph. Jean, D. Torro, and R. Sambuc

Subjects
Pediatrics, medicine.medical_specialty, business.industry, education, Emergency department, Critical Care and Intensive Care Medicine, medicine.disease, Medical care, Radiological weapon, medicine, Medical emergency, business, health care economics and organizations, Healthcare system
Abstract

Summary Objective: Prospective study on the evolution of the radiology budget during medicalisation of an Emergency Department. Patients and methods: Evaluation of radiological investigations was performed during three differents periods: house physicians alone (P1), house physicians alone but specially trained in emergency medecine (P2), and house physicians trained with a senior physician present 24 hours a day. The analysis of the radiology budget was done using the usual tariff laws. Results: The periods were of thirty days each, and were comparable in terms of recruitment and quality of the medical care. A diminution of 40% of the radiologic investigation was found out between P1 and P3. A detailed analysis was realized. It showed that specific formation and presence of a senior had not the same effect on the variation of the different types of radiological investigations. The budget analysis showed a 40.5% decrease in radiological costs. Conclusions: Specific teaching of Emergency medecine and presence of a senior trained in that kind of practice allow optimisation of medical care in Emergency Department and reduction of Health Systems Costs by diminution of unusefol investigations.

Published
1997
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4. Performance of the liquid argon electromagnetic and hadronic accordion calorimeter for the LHC

Author

C.W. Fabjan, R. Nacash, J-P. Meyer, Peter Jenni, D. Stephani, Howard Gordon, J. Colas, Marzio Nessi, Edouard Boos, Johann Collot, C. Padilla, F. Manfredi, L. Owe Eek, P. de Saintignon, Miriam Lucio Martinez, T. Leflour, B. Beaugiraud, O. Gildemeister, V. Speziali, G. Gaidos, J.C. Chollet, Georges Azuelos, A. Astbury, Laura Perini, F. Etienne, J. Schwindling, M. Stipcevic, P. Lavocat, J. Pouxe, R. Zitoun, R. Chase, F. Gianotti, Daniel Fournier, Bengt Lund-Jensen, Elemer Nagy, E.I. Florian, D.V. Camin, E. Merchez, J. P. Repellin, Arthur Schaffer, Richard Keeler, Paola Sala, A. Hirosoho, Donatella Cavalli, J. F. Renardy, B. Merkel, Andrea Ferrari, G. Laborie, A. Cravero, Luc Poggioli, Gilles Beaudoin, J. Soderqvist, G. Hansl-Kozanecka, A. Bazan, B.O. Schaoutnikov, D. Dzahini, Valerio Re, Luis Hervas, Veljko Radeka, Guillaume Unal, J. S. White, Isabelle Wingerter-Seez, J.M. Noppe, Laurent Serin, P. Kitching, Claude Leroy, Fernando Barreiro, S. Basa, L. Gosset, B. Olsen, J. Lory, D. Imbault, J.P. Lottin, J. Roy, Pierre Petroff, B. Aubert, J.M. Baze, Lydia Iconomidou-Fayard, M. Mazzanti, Emmanuel Monnier, W. Richtel, V. Vuillemin, L. Mandelli, Sylvain Tisserant, A. Checktman, E. Auge, M. Chemeissiani, M. C. Cousinou, L. Cozzi, Giuseppe Costa, P. Depommier, Louis Fayard, Ph. Jean, P. Dargent, D.C. Rahm, Y. Zolnierowski, D. Fouchez, Doug Gingrich, C. Olivetto, N. L. Rodning, J.L. Chevalley, G. Battistoni, G. Parrour, C. De La Taille, James Pinfold, Bruno Mansoulie, Nicolas Seguin, M. Marie, D. Canton, H. Zaccone, G. Mahout, L. Labarga, J. Teiger, Ll. Garrido, M. Lefebvre, J. C. Clemens, G. Greenious, E. Fernandez, D. Sauvage, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-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 Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Large Hadron Collider, Calorimeter (particle physics), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Nuclear Theory, Detector, Hadron, Electron, liquid argon, hadronic calorimeter, accordion, 01 natural sciences, Accordion, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment, 010306 general physics, Instrumentation
Abstract

A large scale prototype of a liquid argon accordion calorimeter, conceived as a sector of a full LHC Barrel detector and consisting of an electromagnetic and a hadronic section, has been constructed and tested at the CERN SPS with electron and pion beams in the energy range 10-287 GeV. The energy resolution measured for electrons is 10%/square-root E[GeV] with a local constant of 0.2%. Preliminary results on the hadronic section, which for this first exposure had only half of its transverse coverage, look encouraging and show that the calorimeter behaves according to the design figures.

Published
1994
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5. Performance of a liquid argon preshower detector integrated with an Accordion calorimeter

Author

F. Gianotti, J. Soderqvist, Isabelle Wingerter-Seez, R. Chase, P. Lavocat, C.W. Fabjan, Y. Zolnierowski, Peter Jenni, J.P. Lottin, B. Aubert, W. Richter, J. F. Renardy, B. Merkel, Andrea Ferrari, J.P. Vialle, B. Beaugiraud, M. Pepe, O. Gildemeister, D.V. Camin, G. Costa, A. Bazan, T. Leflour, J.M. Noppe, N. Bulgakov, C. De La Taille, P. Petroff, C. Fuglesang, J. Colas, Marzio Nessi, A. Hrisoho, H. Zaccone, J-P. Meyer, Veljko Radeka, E. Auge, Arthur Schaffer, D. Stephani, Howard Gordon, Nicolas Seguin, Louis Fayard, Marcello Mazzanti, G. Le Meur, J. Teiger, Michel Lefebvre, J.L. Chevalley, Ph. Jean, M. Sciamanna, G. Battistoni, Laura Perini, L. Gosset, G. Parrour, D.C. Rahm, J.C. Chollet, Daniel Fournier, J. P. Repellin, M. Maire, Guillaume Unal, V. Vuillemin, L. Mandelli, Bruno Mansoulie, D. Cavalli, Francesca Nessi-Tedaldi, J.M. Baze, G. Pessina, and A. Cravero

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Photon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Detector, Space resolution, Accordion, Nuclear physics, Liquid argon, High Energy Physics::Experiment, Granularity, Detectors and Experimental Techniques, Instrumentation
Abstract

A prototype liquid argon preshower detector with a strip granularity of 2.5 mm has been tested at the CERN SPS in front of a liquid argon Accordion calorimeter. For charged tracks a signal-to-noise ratio of 9.4 and a space resolution of 340 μm were measured; the rejection power against overlapping photons produced in the decay of 50 GeV π 0 's is larger than 3; the precision on

Published
1993
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6. Steady-State Interstitial Circulations in an Idealized Atoll Reef and Tidal Transients in a Deep Borehole by Computer Simulation

Author

D. Broc, Ph. Jean-Baptiste, J. Rancher, A.‐M. Leclerc, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-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), Glaces et Continents, Climats et Isotopes Stables (GLACCIOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-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 Versailles Saint-Quentin-en-Yvelines (UVSQ)-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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, geography, geography.geographical_feature_category, Steady state (electronics), 010504 meteorology & atmospheric sciences, Borehole, Atoll, Geophysics, 010502 geochemistry & geophysics, 01 natural sciences, 14. Life underwater, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, Geology, 0105 earth and related environmental sciences
Abstract

International audience

Published
2009
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7. Performance of the ALEPH detector at LEP

Author

D Buskulic, D Casper, I De Bonis, D Decamp, P Ghez, C Goy, J.-P Lees, M.-N Minard, P Odier, B Pietrzyk, F Ariztizabal, M Chmeissani, J.M Crespo, I Efthymiopoulos, E Fernandez, M Fernandez-Bosman, V Gaitan, Ll Garrido, M Martinez, T Mattison, S Orteu, A Pacheco, C Padilla, F Palla, A Pascual, J.A Perlas, F Sanchez, F Teubert, F Chiumarulo, A Clemente, D Creanza, M de Palma, A Farilla, R Ferorelli, G Iaselli, G Maggi, N Marinelli, A Mastrogiacomo, S Natali, V Negro, S Nuzzo, M Papagni, C Pinto, A Ranieri, G Raso, F Romano, F Ruggieri, G Selvaggi, L Silvestris, P Tempesta, G Zito, Y Chai, D Huang, X Huang, J Lin, T Wang, Y Xie, D Xu, R Xu, J Zhang, L Zhang, W Zhao, H Albrecht, A Ball, R Benetta, F Bird, E Blucher, G Bonvicini, J Boudreau, T Charity, P Comas, P Coyle, H Drevermann, A Engelhardt, M Ferro-Luzzi, L Foà, R.W Forty, M Frank, G Ganis, C Gay, M Girone, C Grab, R Grabit, J Griffith, R Grub, R Hagelberg, J Harvey, B Ivesdal, R Jacobsen, P Jarron, B Jost, M Kasemann, G Kellner, J Knobloch, A Lacourt, P Lazeyras, I Lehraus, B Lofstedt, T Lohse, D Lütze, M Maggi, A Marchioro, C Markou, E.B Martin, P Mato, J.-M Maugain, J May, H Meinhard, V Mertens, A Minten, A Miotto, R Miquel, P Palazzi, J.R Pater, P Perrodo, R Pintus, L Pregernig, M Price, J.-F Pusztaszeri, F Ranjard, J Richstein, W Richter, L Rolandi, H Rotscheidt, W von Ruden, M Saich, J.-C Santiard, P Schilly, D Schlatter, M Schmelling, G Stefanini, H Taureg, W Tejessy, I.R Tomalin, R Veenhof, A Venturi, H Verweij, H Wachsmuth, H Wahl, S Wheeler, W Wiedenmann, T Wildish, W Witzeling, J Wotschack, Z Ajaltouni, M Bardadin-Otwinowska, A Barres, C Boyer, M Brossard, R Chadelas, F Daudon, A Falvard, P Gay, C Guicheney, P Henrard, J Jousset, B Michel, J-C Montret, D Pallin, P Perret, F Podlyski, J Proriol, F Saadi, H Bertelsen, T Fearnley, F Hansen, J.B Hansen, J.D Hansen, J.R Hansen, P.H Hansen, S.D Johnson, A Lindahl, B Madsen, R Møllerud, B.S Nilsson, G Petersen, A Kyriakis, E Simopoulou, I Siotis, A Vayaki, K Zachariadou, M Bercher, U Berthon, A Blondel, G Bonneaud, J.C Brient, P Bourdon, A Busata, M Cerutti, J Doublet, G Fouque, C Lemoine, P Matricon, M Maubras, R Morano, J.-Y Parey, L Passalacqua, P Poilleux, A Rougé, C Roy, M Rumpf, R Tanaka, A Valassi, M Verderi, H Videau, C Violet, D.J Candlin, A.J Main, M.I Parsons, E Veitch, E Focardi, G Parrini, E Scarlini, M Corden, M Delfino, C Georgiopoulos, D.E Jaffe, D Levinthal, M Anelli, A Antonelli, A Balla, G Bencivenni, G Bologna, R Bonini, F Bossi, P Campana, G Capon, M Carletti, F Cerutti, V Chiarella, G Corradi, B Dulach, G Felici, P Laurelli, G Mannocchi, F Murtas, G.P Murtas, M Pepe-Altarelli, P Picchi, S Salomone, M Santoni, P Colrain, I ten Have, I.G Knowles, J.G Lynch, W Maitland, W.T Morton, C Raine, P Reeves, J.M Scarr, K Smith, M.G Smith, A.S Thompson, S Thorn, R.M Turnbull, U Becker, B Brandl, O Braun, R Geiges, C Geweniger, P Hanke, V Hepp, W Heyde, E.E Kluge, J Krause, Y Maumary, M Panter, A Putzer, B Rensch, M Schmidt, K Schmitt, A Stahl, H Stenzel, K Tittel, M Wunsch, G.J Barber, R Beuselinck, D.M Binnie, W Cameron, M Cattaneo, D.J Colling, P.J Dorna, D.N Gentry, J.F Hassard, N Konstantinidis, D.G Miller, L Moneta, A Moutoussi, J Nash, D.G Payne, D.R Price, G San Martin, J.K Sedgbeer, A.G Wright, P Girtler, D Kuhn, G Rudolph, R Vogl, C.K Bowdery, T.J Brodbeck, A.J Finch, F Foster, G Hughes, D Jackson, N.R Keemer, M Nuttall, A Patel, T Sloan, S.W Snow, E.P Whelan, L.A.T Bauerdick, A Galla, A.M Greene, K Kleinknecht, J Raab, B Renk, H.-G Sander, H Schmidt, S.M Walther, R Wanke, B Wolf, A.M Bencheikh, C Benchouk, M Billaut, A Bonissent, D Calvet, J Carr, C Diaconu, F Etienne, Y Gally, D Nicod, P Payre, L Roos, D Rousseau, P Schwemling, M Talby, I Abt, K Ackermann, S Adlung, R Assmann, C Bauer, H Becker, W Blum, D Brown, P Cattaneo, B Dehning, H Dietl, F Dydak, H Fischer, A.W Halley, D Hauff, P Holl, K Jakobs, W Kothhuber, H Kroha, J Lauber, G Lütjens, G Lutz, W Männer, H.-G Moser, R Richter, J Schröder, A.S Schwarz, R Settles, H Seywerd, H Stieg, U Stiegler, U Stierlin, R.St Denis, L Strüder, G Waltermann, P Weissbach, G Wolf, J.-N Albert, R Alemany, C Arnault, R Bernier, J Boucrot, O Callot, R Chase, A Cordier, M Davier, M Dialinas, A Ducorps, L Duflot, J.-F Grivaz, Ph Heusse, P Janot, Ph Jean, D.W Kim, F Le Diberder, J Lefrançois, A.-M Lutz, G Musolino, H.J Park, J.-P Richer, M.-H Schune, J.-J Veillet, I Videau, D Abbaneo, C Avanzini, G Bagliesi, G Batignani, A Bechini, F Bosi, U Bottigli, C Bozzi, C Bradaschia, G Calderini, M Carpinelli, C Cerri, M.A Ciocci, V Ciulli, R Dell'Orso, R Fantechi, I Ferrante, F Fidecaro, F Forti, A Giassi, M.A Giorgi, A Gregorio, F Ligabue, R Lorenzini, A Lusiani, P.S Marrocchesi, A Messineo, G Pagani, G Pierazzini, A Profeti, G Rizzo, G Sanguinetti, P Spagnolo, J Steinberger, R Tenchini, G Tonelli, G Triggiani, C Vannini, P.G Verdini, J Walsh, A.P Betteridge, Y Gao, M.G Green, B.J Green, D.L Johnson, P.V March, T Medcalf, Ll.M Mir, I.S Quazi, J.A Strong, V Bertin, J Bizzell, D.R Botterill, R.W Clifft, T.R Edgecock, S Haywood, M Edwards, P.R Norton, J.C Thompson, A.W Tucker, D Bederede, R Bernard, E Beuville, B Bloch-Devaux, P Colas, H Desportes, H Duarte, S Emery, L Gosset, J Heitzmann, M Jacquemet, A Joudon, W Kozanecki, E Lançon, M.C Lemaire, E Locci, J.C Lottin, P Micolon, J Pascual, P Perez, J Rander, J.-F Renardy, A Rosowsky, A Roussarie, J.-P Schuller, J Schwindling, D Si Mohand, B Vallage, R.P Johnson, A.M Litke, G Taylor, J Wear, A Beddall, C.N Booth, S Cartwright, F Combley, I Dawson, A Koksal, C Rankin, L.F Thompson, A Böhrer, S Brandt, G Cowan, E Feigl, G Gillessen, C Grupen, G Lutters, J Minguet-Rodriguez, F Rivera, P Saraiva, U Schäfer, L Smolik, L Bosisio, R Della Marina, G Giannini, B Gobbo, L Pitis, F Ragusa, J Rothberg, S Wasserbaech, L Bellantoni, A Caldwell, D Cinabro, J.S Conway, D.F Cowen, Z Feng, D.P.S Ferguson, Y.S Gao, J Grahl, J.L Harton, O.J Hayes, H Hu, J Izen, R.C Jared, D Muller, J.M Nachtman, Y.B Pan, Y Saadi, M Schmitt, I Scott, V Sharma, D Strom, M Takashima, J.D Turk, A.M Walsh, F.V Weber, E Wicklund, Sau Lan Wu, X Wu, J.M Yamartino, M Zheng, G Zobernig, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), ALEPH, Buskulic, D, Casper, D, De Bonis, I, Decamp, D, Ghez, P, Goy, C, Lees, J. -P, Minard, M. -N, Odier, P, Pietrzyk, B, Ariztizabal, F, Chmeissani, M, Crespo, J. M, Efthymiopoulos, I, Fernandez, E, Fernandez-Bosman, M, Gaitan, V, Garrido, Ll, Martinez, M, Mattison, T, Orteu, S, Pacheco, A, Padilla, C, Palla, F, Pascual, A, Perlas, J. A, Sanchez, F, Teubert, F, Chiumarulo, F, Clemente, A, Creanza, D, de Palma, M, Farilla, A, Ferorelli, R, Iaselli, G, Maggi, G, Marinelli, N, Mastrogiacomo, A, Natali, S, Negro, V, Nuzzo, S, Papagni, M, Pinto, C, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Chai, Y, Huang, D, Huang, X, Lin, J, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, L, Zhao, W, Albrecht, H, Ball, A, Benetta, R, Bird, F, Blucher, E, Bonvicini, G, Boudreau, J, Charity, T, Comas, P, Coyle, P, Drevermann, H, Engelhardt, A, Ferro-Luzzi, M, Foà, L, Forty, R. W, Frank, M, Ganis, G, Gay, C, Girone, M, Grab, C, Grabit, R, Griffith, J, Grub, R, Hagelberg, R, Harvey, J, Ivesdal, B, Jacobsen, R, Jarron, P, Jost, B, Kasemann, M, Kellner, G, Knobloch, J, Lacourt, A, Lazeyras, P, Lehraus, I, Lofstedt, B, Lohse, T, Lütze, D, Maggi, M, Marchioro, A, Markou, C, Martin, E. B, Mato, P, Maugain, J. -M, May, J, Meinhard, H, Mertens, V, Minten, A, Miotto, A, Miquel, R, Palazzi, P, Pater, J. R, Perrodo, P, Pintus, R, Pregernig, L, Price, M, Pusztaszeri, J. -F, Ranjard, F, Richstein, J, Richter, W, Rolandi, L, Rotscheidt, H, von Ruden, W, Saich, M, Santiard, J. -C, Schilly, P, Schlatter, D, Schmelling, M, Stefanini, G, Taureg, H, Tejessy, W, Tomalin, I. R, Veenhof, R, Venturi, A, Verweij, H, Wachsmuth, H, Wahl, H, Wheeler, S, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadin-Otwinowska, M, Barres, A, Boyer, C, Brossard, M, Chadelas, R, Daudon, F, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, J-C, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Saadi, F, Bertelsen, H, Fearnley, T, Hansen, F, Hansen, J. B, Hansen, J. D, Hansen, J. R, Hansen, P. H, Johnson, S. D, Lindahl, A, Madsen, B, Møllerud, R, Nilsson, B. S, Petersen, G, Kyriakis, A, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Bercher, M, Berthon, U, Blondel, A, Bonneaud, G, Brient, J. C, Bourdon, P, Busata, A, Cerutti, M, Doublet, J, Fouque, G, Lemoine, C, Matricon, P, Maubras, M, Morano, R, Parey, J. -Y, Passalacqua, L, Poilleux, P, Rougé, A, Roy, C, Rumpf, M, Tanaka, R, Valassi, A, Verderi, M, Videau, H, Violet, C, Candlin, D. J, Main, A. J, Parsons, M. 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J., Haye, H., Hu, J., Izen, R. C., Jared, D., Muller, J. M., Nachtman, Y. B., Pan, Y., Saadi, M., Schmitt, I., Scott, V., Sharma, D., Strom, M., Takashima, J. D., Turk, A. M., Walsh, F. V., Weber, E., Wicklund, Sau Lan, Wu, X., Wu, J. M., Yamartino, M., Zheng, G., Zobernig, Debonis, I, Lees, J, Minard, M, Crespo, J, Fernandezbosman, M, Garrido, L, Perlas, J, Depalma, M, Ferroluzzi, M, Foa, L, Forty, R, Lutze, D, Martin, E, Maugain, J, Pater, J, Pusztaszeri, J, Santiard, J, Tomalin, I, Bardadinotwinowska, M, Montret, J, Hansen, J, Hansen, P, Johnson, S, Mollerud, R, Nilsson, B, Brient, J, Parey, J, Rouge, A, Candlin, D, Main, A, Parsons, M, Jaffe, D, Murtas, G, Pepealtarelli, M, Tenhave, I, Knowles, I, Lynch, J, Morton, W, Scarr, J, Smith, M, Thompson, A, Turnbull, R, Kluge, E, Barber, G, Binnie, D, Colling, D, Dorna, P, Gentry, D, Hassard, J, Miller, D, Payne, D, Price, D, Sanmartin, G, Sedgbeer, J, Wright, A, Bowdery, C, Brodbeck, T, Finch, A, Keemer, N, Snow, S, Whelan, E, Bauerdick, L, Greene, A, Sander, H, Walther, S, Bencheikh, A, Halley, A, Lutjens, G, Manner, W, Moser, H, Schroder, J, Schwarz, A, Denis, R, Struder, L, Albert, J, Grivaz, J, Heusse, P, Jean, P, Kim, D, Lediberder, F, Lefrancois, J, Lutz, A, Park, H, Richer, J, Schune, M, Veillet, J, Ciocci, M, Dellorso, R, Giorgi, M, Marrocchesi, P, Verdini, P, Betteridge, A, Green, M, Green, B, Johnson, D, March, P, Mir, L, Quazi, I, Strong, J, Botterill, D, Clifft, R, Edgecock, T, Norton, P, Thompson, J, Tucker, A, Blochdevaux, B, Lancon, E, Lemaire, M, Lottin, J, Renardy, J, Schuller, J, Mohand, D, Johnson, R, Litke, A, Booth, C, Thompson, L, Bohrer, A, Minguetrodriguez, J, Schafer, U, Dellamarina, R, Conway, J, Cowen, D, Ferguson, D, Harton, J, Hayes, O, Jared, R, Nachtman, J, Pan, Y, Turk, J, Walsh, A, Weber, F, Wu, S, Yamartino, J, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Aleph, Particle physics, Physics::Instrumentation and Detectors, Tracking (particle physics), 01 natural sciences, Particle identification, law.invention, Nuclear physics, ALEPH Experiment, LEP, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Collider, ALEPH experiment, Instrumentation, Nuclear and High Energy Physic, Physics, Missing energy, Muon, 010308 nuclear & particles physics, Detector, High Energy Physics::Phenomenology, ALEPH detector, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

The performance of the ALEPH detector at the LEP e+e-collider is reviewed. The accuracy of the tracking detectors to measure the impact parameter and momentum of charged tracks is specified. Calorimeters are used to measure photons and neutral hadrons, and the accuracy obtained in energy and angle is given. An essential property of the detector is its ability to identify particles; the performance in identification of electrons, muons, neutrinos (from missing energy), charged hadrons, π0's and V0's is described. © 1995.

Published
1995

8. Electronic chain for the readout of a fast liquid argon prototype calorimeter

Author

A. Ferrari, J-P. Meyer, A. Hrisoho, B. Merkel, J.P. Vialle, Nicolas Seguin, J. Colas, H. Zaccone, Marzio Nessi, D. Stephani, G. Guilhem, P. Farthouat, Francesca Nessi-Tedaldi, Howard Gordon, Isabelle Wingerter-Seez, M. Lebeau, L. Mandelli, Pierre Petroff, O. Gildemeister, Lydia Iconomidou-Fayard, M. Maire, D.V. Camin, C.W. Fabjan, T. Leflour, Paola Sala, B. Beaugiraud, Louis Fayard, Donatella Cavalli, F. Gianotti, Arthur Schaffer, Ph. Jean, J. Thion, A. Franz, P. Petitpas, Peter Jenni, Giuseppe Costa, D.C. Rahm, J.C. Chollet, J.L. Chevalley, P. Lavocat, Daniel Fournier, G. Battistoni, G. Parrour, Laura Perini, W. Richter, J. F. Renardy, B. Mnasoulie, J. Teiger, Michel Lefebvre, J. P. Repellin, A. Bazan, E. Auge, J.C. MeMarec, J.M. Noppe, L. Gosset, Veljko Radeka, C. De La Taille, J. J. Veillet, Graham R. Stevenson, C. Fuglesang, B. Aubert, M. Mazzanti, M. Pepe, W.J. Willis, J.M. Baze, and R. Chase

Subjects
Physics, Cryostat, Argon, Large Hadron Collider, Calorimeter (particle physics), Physics::Instrumentation and Detectors, business.industry, Preamplifier, Amplifier, chemistry.chemical_element, JFET, Nuclear physics, chemistry, Nuclear electronics, Optoelectronics, High Energy Physics::Experiment, business
Abstract

Summary form only given. A research and development program is being conducted in view of realizing an electromagnetic and hadronic calorimeter for the Large Hadron Collider (LHC). The authors report on tests on fast electronics, coupled to an electromagnetic prototype calorimeter built with an accordion structure. Three different types of preamplifiers have been used. In two (Si and GaAs hybrids), the preamplifier is operated in liquid argon. In the third one, a common based (Si JFET or GaAs) transistor is in the liquid, the charge preamplifier being outside the cryostat, after about 6 m of 50- Omega cable. The shaping amplifier uses RC-CR filtering. The response to a short current pulse peaks after about 20 ns. When the system is connected to the calorimeter, the liquid argon signals peak, as expected, after 30 ns. Noise, linearity, and cross-talk between channels were investigated. First results from an exposure of the calorimeter to electrons of energy 30 to 175 GeV were obtained. >

Published
2002
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9. Abundance and isotopic composition of helium in hydrothermal sulfides from the East Pacific Rise at 13 °N

Author

Yves Fouquet, Ph. Jean-Baptiste, and Laboratoire de Modélisation du Climat et de l'Environnement (LMCE)

Subjects
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, Mineral, 010504 meteorology & atmospheric sciences, Extraction (chemistry), Mineralogy, chemistry.chemical_element, 010502 geochemistry & geophysics, 01 natural sciences, Hydrothermal circulation, Dilution, chemistry, Geochemistry and Petrology, Seawater, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, Isotopes of helium, Helium, Geology, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, Hydrothermal vent
Abstract

The helium isotopes composition of fluids trapped in hydrothermal Sulfides from the East Pacific Rise (13 °N) were measured. Two extraction techniques, i.e., crushing and heating, were tested and sulfldes of different mineralogical types were studied. The comparison between the two extraction methods suggests that both should give similar results, provided the crushing efficiency is sufficiently high. Sulfides 3 He/ 4 He ratio for crushed samples are in the range 6.85–8.10 times the atmospheric ratio (R a = 1.38 × 10 −6 ) and the measured helium concentration is of the order of 5.5 × 10 −5 cm 3 STP per gram of trapped fluid. Comparison with the helium isotope composition of the hydrothermal vent fluids themselves shows that the mineral phases formed at the highest temperature (i.e., with less dilution by the ambient seawater) retain the helium information most effectively, with values almost indistinguishable from the endmember vent fluid.

Published
1996
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11. A neutron irradiation facility featuring cryogenic temperatures and dedicated to large hadron collider detector design

Author

D. Marchand, E.León Florián, G. Mahout, Johann Collot, P. de Saintignon, A. Hoummada, Ph. Jean, B. Merkel, Claude Leroy, F. Merchez, P. Gabor, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics, Cryostat, Bonner sphere, Nuclear and High Energy Physics, Dosimeter, Large Hadron Collider, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Physics::Medical Physics, 01 natural sciences, Nuclear physics, Deuterium, 0103 physical sciences, Neutron cross section, Neutron source, Neutron, Nuclear Experiment, 010306 general physics, Instrumentation
Abstract

The SARA facility at Grenoble provides the possibility to carry out neutron irradiation studies at both cryogenic and room temperatures, and permits at the same time to measure on-line the deterioration of the electronic performance of the tested circuits. The cryogenic vessel consists of a 101 liquid argon cryostat placed behind the neutron source. A TOF technique was used to measure the neutron energy spectrum produced by the collision of a 20 MeV deuteron beam on a thick Be target. Alanine and thermoluminescent dosimeters were used to determine the neutron and photon doses. The results show that the neutron and the gamma dose components are about 78% and 22%, respectively. The angular distribution of the dose was also measured.

Published
1994

12. Performance of a liquid argon preshower detector integrated with an accordion calorimeter

Author

Aubert, B., Bazan, A., Beaugiraud, B., Colas, J., Le Flour, T., Maire, M., Vialle, J. P., Wingerter-Seez, I., Zolnierowski, Y., Gordon, H. A., Radeka, V., Rahm, D., Stephani, D., Bulgakov, N., Chevalley, J. L., Fabjan, C. W., Fournier, D., Gildemeister, O., Jenni, P., Nessi, M., Nessi-Tedaldi, F., Pepe, M., Richter, W., Soderqvist, J., Vuillemin, V., Baze, J. M., Gosset, L., Lavocat, P., Lottin, J. P., Mansoulie, B., Meyer, J. P., Renardy, J. F., Teiger, J., Zaccone, H., Battistoni, G., Camin, D. V., Cavalli, D., Costa, G., Cravero, A., Anthony Ferrari, Gianotti, F., Mandelli, L., Mazzanti, M., Perini, L., Pessina, G., Sciamanna, M., Auge, E., Chase, R., Chollet, J. C., christophe de La Taille, Hrisoho, A., Ph. Jean, Le Meur, G., Merkel, B., Noppe, J. M., Parrour, G., Petroff, P., Repellin, J. P., Schaffer, A., Nicolas Seguin, Unal, G., Fuglesang, C., Lefebvre, M., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and RD3

Subjects
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Published
1993

13. Performance of a liquid argon electromagnetic calorimeter with a cylindrical accordion geometry

Author

Aubert, B., Bazan, A., Beaugiraud, B., Colas, J., Le Flour, T., Maire, M., Vialle, J. P., Wingerter-Seez, I., Zolnierowski, Y., Gordon, H. A., Radeka, V., Rahm, D., Stephani, D., Bulgakov, N., Chevalley, J. L., Fabjan, C. W., Fournier, D., Gildemeister, O., Jenni, P., Nessi, M., Nessi-Tedaldi, F., Pepe, M., Richter, W., Soderqvist, J., Vuillemin, V., Baze, J. M., Gosset, L., Lavocat, P., Lottin, J. P., Mansoulie, B., Meyer, J. P., Renardy, J. R., Teiger, J., Zaccone, H., Battistoni, G., Gamin, D. V., Cavalli, D., Costa, G., Cravero, A., Anthony Ferrari, Gianotti, F., Mandelli, L., Mazzanti, M., Perini, L., Sciamanna, M., Auge, E., Chase, R., Chollet, J. C., christophe de La Taille, Fayard, L., Hrisoho, A., Ph. Jean, Iconomidou-Fayard, L., Le Meur, G., Merkel, B., Noppe, J. M., Parrour, G., Petroff, P., Repellin, J. P., Schaffer, A., Nicolas Seguin, Unal, G., Fuglesang, C., Lefebvre, M., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and R&D

Subjects
[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Published
1993

14. Performance of a liquid argon accordion calorimeter with fast read-out

Author

P. Lavocat, D. Cavalli, Isabelle Wingerter-Seez, C.W. Fabjan, Peter Jenni, W. Richter, J. F. Renardy, J. Colas, Marzio Nessi, A. Bazan, J.M. Noppe, M. Maire, J.P. Lottin, C. Fuglesang, Guillaume Unal, G. Pessina, B. Beaugiraud, O. Gildemeister, M. Lefebvre, Y. Zolnierowski, F. Gianotti, B. Aubert, Sherry Towers, P. Petroff, Paola Sala, Arthur Schaffer, J.C. Chollet, M. Pepe, Marcello Mazzanti, E. Auge, D.C. Rahm, Louis Fayard, J.L. Chevalley, Veljko Radeka, M. Sciamanna, G. Battistoni, L. Gosset, G. Parrour, A. Cravero, L. Mandelli, Laura Perini, Daniel Fournier, J. P. Repellin, Bruno Mansoulie, Nicolas Seguin, F. Nessi-Tedaldi, Ph. Jean, C. De La Taille, Lydia Iconomidou-Fayard, H. Zaccone, J. Teiger, J.M. Baze, G. Costa, R. Chase, B. Merkel, Andrea Ferrari, J.P. Vialle, D.V. Camin, J. Soderqvist, A. Franz, T. Leflour, J-P. Meyer, D. Stephani, and Howard Gordon

Subjects
Physics, Nuclear and High Energy Physics, Muon, Large Hadron Collider, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Hadron, Detector, Electron, Nuclear physics, Physics::Accelerator Physics, High Energy Physics::Experiment, Angular resolution, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation, Noise (radio)
Abstract

A prototype lead-liquid-argon electromagnetic calorimeter with parallel plates and Accordion geometry has been equipped with high speed readout electronics and tested with electron and muon beams at the CERN SPS. For a response peaking time of about 35 ns, fast enough for operation at the future hadron colliders, the energy resolution for electrons is 9.6%/√E[GeV] with a local constant term of 0.3% and a noise contribution of 0.33 E[ GeV ] . The spatial accuracy achieved with a detector granularity of 2.7 cm is 3.7 mm E[ GeV ] and the angular resolution 12 mrad at 60 GeV.

Published
1992

15. LIQUID ARGON CALORIMETRY WITH LHC-PERFORMANCE SPECIFICATIONS

Author

Isabelle Wingerter-Seez, W. Richter, J. F. Renardy, C.P. Marin, G. Guilhem, Lydia Iconomidou-Fayard, J.C. Berset, J. Colas, Marzio Nessi, J.M. Baze, L. Baisin, A. Bazan, B. Beaugiraud, P. Farthouat, J. J. Veillet, O. Gildemeister, J.M. Noppe, Arthur Schaffer, P. Petroff, J.L. Chevalley, L. Mandelli, M. Lebeau, G. Costa, F. Cavanna, A. Sigrist, F. Nessi-Tedaldi, G. Battistoni, P. Lavocat, G. Pessina, L. Gosset, Marcello Mazzanti, G. Parrour, C.W. Fabjan, R. Chase, F. Gianotti, J.C. LeMarec, D.C. Rahm, Peter Jenni, E. Augé, Laura Perini, Ph. Jean, B. Merkel, Andrea Ferrari, J.P. Vialle, Daniel Fournier, P. Petitpas, M. Maire, J. P. Repellin, Michel Lefebvre, Bruno Mansoulie, A. Franz, G. Polesello, C. De La Taille, H. Zaccone, Venetios Polychronakos, J. Teiger, Graham R. Stevenson, D. Cavalli, Nicolas Seguin, Veljko Radeka, C. Fuglesang, B. Aubert, M. Pepe, Louis Fayard, J-P. Meyer, D.V. Camin, D. Stephani, Howard Gordon, A. Hrisoho, T. Leflour, J. Thion, J.C. Chollet, and W. J. Willis

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Hadron, Resolution (electron density), Calorimetry, Electron, Calorimeter, Nuclear physics, High Energy Physics::Experiment, Granularity, Instrumentation, Energy (signal processing)
Abstract

A novel geometry liquid argon calorimeter with accordion-shaped electrodes and converter plates has been recently conceived. Such a design allows for a fast readout and for a high granularity over large volumes with minimal dead spaces, properties which are considered essential for operation at the future hadron colliders. The first electromagnetic prototype based on this scheme has been built and tested at the CERN SPS. For a response peaking time of 140 ns an energy resolution of 10%/√ E (GeV) and a space resolution of 4.4 mm/√ E (GeV) with 2.7 cm cell size were achieved for electrons. A few preliminary results from a test with fast readout (response peaking time of less than 40 ns) are also presented.

Published
1992

19. A new readout scheme for liquid argon calorimeters

Author

J. F. Renardy, J. Lefrancois, John Rander, P. Perez, G. Berging, A.M. Lutz, Ph. Jean, L. Gosset, R.L. Chase, D. Fournier, Claude Guyot, M. Dialinas, I. Corbett, P. Micolon, Laboratoire de l'Accélérateur Linéaire (LAL), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, General Engineering, Analytical chemistry, 01 natural sciences, Cathode, Anode, Calorimeter, law.invention, Optics, Physics::Plasma Physics, law, 0103 physical sciences, Liquid argon, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, business
Abstract

A readout scheme using information from both anode and cathode planes of liquid argon calorimeters has been investigated. The feasibility of this scheme is demonstrated from data taken with a test calorimeter. The main features of a design for the LEP experiment ALEPH, using this scheme, are given.

Published
1984
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20. The use of Anexate (Ro 15-1788) in acute self-poisoning with benzodiazepines alone or combined with other drugs — Preliminary results

Author

J.Du Cailar, A. Jaeger, R. Manfrendi, D. Passeron, G. Bikpi-Benissan, F. Sockel, Ph. Jean, R. Ducluzeau, J. Jouglard, F. Flesch, J.M. Rouzioux, Frédéric J. Baud, F. Saulnier, C. Bismuth, and A. Durocher

Subjects
Adult, Flumazenil, Male, medicine.medical_specialty, Adolescent, Injury control, Accident prevention, Poison control, Suicide, Attempted, Emergency Nursing, Suicide prevention, Occupational safety and health, Random Allocation, Double-Blind Method, Injury prevention, medicine, Humans, Aged, Clinical Trials as Topic, business.industry, Poisoning, Human factors and ergonomics, Middle Aged, medicine.disease, Anti-Anxiety Agents, Emergency medicine, Emergency Medicine, Female, Medical emergency, Self poisoning, Cardiology and Cardiovascular Medicine, business
Published
1988
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21. Transition and synchrotron radiation produced by electrons and particle discrimination

Author

Ph. Jean, B. Merkel, G. Sauvage, J.M. Gaillard, M. Dialinas, J.C. Chollet, J.-P. Repellin, Maurice Bourquin, A. Hrisoho, Laboratoire de l'Accélérateur Linéaire (LAL), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Hadron, Synchrotron radiation, chemistry.chemical_element, General Medicine, Electron, 01 natural sciences, law.invention, Xenon, chemistry, Transition radiation, law, 0103 physical sciences, Particle, Lithium, Atomic physics, 010306 general physics, Radiator
Abstract

Transition radiation from a radiator of 650 lithium foils has been studied in a MWPC filled with a xenon-Co 2 mixture for two experimental configurations. With the chamber immediately behind the radiator, particle discriminations comparable to those reported in the literature (90% efficiency for electrons, 10% for hadrons) have been observed. With magnetic bending between the radiator and the xenon chamber typical efficiencies of 87% for electrons and less than 0.4% for hadrons have been measured. The discrimination obtained is at least a factor 20 better than for the more conventional configuration. In the latter case, synchrotron radiation has also been observed.

Published
1976
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22. Miss: A Coupled Model of Water Chemistry and Hydrodispersive Transport in Aquifers

Author

J.P. Sauty, Alain C.M. Bourg, F. Richard, and Ph. Jean

Subjects
Partition coefficient, Pollutant, Hydrology, Adsorption, Groundwater flow, Environmental chemistry, Soil water, Pedosphere, Environmental science, Dispersion (geology), Groundwater
Abstract

The migration of non-biodegradable and non volatile pollutants in soils and sub-soils is the result of the competition between solution and particulate transport and retention by insolubilization (adsorption, precipitation). Various models, taking into account convection, dispersion and,to a lesser extent,solid-liquid interactions, have been developed in order to predict the transfer of pollutants in the pedosphere and the lithosphere. In the investigations coupling flow and solid-liquid interactions, the latter are usually accounted for by empirical expressions (partition coefficient Kd). Such an approach cannot consider the significant role played by the various dissolved chemical forms that an element can present. The dissolved concentration of an element and consequently its interactions with soils are strongly dependent upon the water chemical parameters (pH, Eh, major anions and cations, complexing agents).

Published
1989
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23. Mitral Valve Prolapse (MVP) and Various Psychoneurophysiologic Disorders: The Missing Link?

Author

Ph. Jean-Louis

Subjects
medicine.medical_specialty, Pathology, business.industry, Connective tissue, Disease, medicine.disease, Pseudoxanthoma elasticum, Chromosomal diseases, medicine.anatomical_structure, Osteogenesis imperfecta, Internal medicine, Cardiology, Medicine, Mitral valve prolapse, medicine.symptom, Neurofibromatosis, business, Telangiectasia
Abstract

The histodysplasias are congenital genetic diseases affecting various tissues in the body (nervous tissue, the epidermis, connective tissue, etc.). They are caused by a genetic deterioration of the phase of differentiation of the layers between the fourth and eighth weeks of embryonic development (Robert,41)! Brown (7) in Marfan’s Syndrome, Antani (2) and Brandt (6) in Ehlers-Danlos Syndrome, and Etches (14) in neurofibromatosis all found mitral valve prolapse in each of the principle dysplasias. Other researchers have discovered the same condition: Roberts (42) in pseudoxanthoma elasticum, Jean-Louis (23) in hereditary hemorrhagic telangiectasia, and Melaned (36) in Lobstein’s Syndrome. Mitral valve prolapse has also been found in chromosomal diseases such as Turner’s (Hancock,22) and Down’s (Goldhaber, 21) syndromes or in extra-chromosomal formations such as Noonan’s disease (Towne, 49), resulting in the formation of histodysplasias.

Published
1989
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24. Review of the current antibiotic guidelines used in dermatologic surgery.

Author

Dreyfuss I, Ramnot A, Jean-Pierre PH, Frech F, Hernandez L, and Nouri K

Subjects
Dermatologic Surgical Procedures adverse effects, Humans, Surgical Wound Infection drug therapy, Surgical Wound Infection etiology, Surgical Wound Infection prevention & control, Anti-Bacterial Agents adverse effects, Antibiotic Prophylaxis adverse effects
Abstract

Antibiotics have been used as a prophylaxis for dermatologic procedures. We will review the various procedures that specific antibiotics with dosages are used for, depending on the procedure, diagnosis, and circumstance of the patient. We will examine the current and updated guidelines used in dermatologic surgery and the overlapping guidelines across other fields. Physicians must consider the side effects of antibiotics and the resistance that may occur as a result before using the class or level of prophylaxis. Initial evaluation for alcohol, chlorhexidine, or iodine should be measured as well. Updated guidelines aim to address the contraindications of antibiotics, yet further research is needed to avoid antibiotic resistance and to explore alternative methods of antibiotic application, such as intranasal and intravenous., (© 2022 Wiley Periodicals LLC.)

Published
2022
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