250 results on '"P. Petitpas"'
Search Results
102. A Career Assistance Program for Elite Athletes.
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Petitpas, Al
- Abstract
Describes a career assistance program to assist elite athletes (n=142) in coping with the transition out of active sport competition. Uses a lifespan development framework to describe formulation of the program. Presents outline of program and discusses implications for counseling. Notes feedback from participants has been positive and the program's future is bright. (Author/ABL)
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- 1992
103. Transitions of Athletes: Developmental and Preventive Perspectives.
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Pearson, Richard E. and Petitpas, Albert J.
- Abstract
Discusses anticipated and unanticipated transitions faced by athletes from developmental psychology perspective developed by Nancy Schlossberg. Identifies factors contributing to dysfunctional response to transitions associated with athletic careers. Examines preventive strategies and describes illustrative programs. (Author/CM)
- Published
- 1990
104. Antibody responses to SARS-CoV2 vaccination in allogeneic hematopoietic stem cell transplant recipients
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Mamez, Anne-Claire, Pradier, Amandine, Giannotti, Federica, Petitpas, Adrien, Urdiola, Marta Fabra, Vu, Diem-Lan, Masouridi-Levrat, Stavroula, Morin, Sarah, Dantin, Carole, Clerc-Renaud, Dominique, Eberhardt, Christiane S., Kaiser, Laurent, Simonetta, Federico, and Chalandon, Yves
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- 2024
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105. 1H NMR-based metabolomics approach for exploring urinary metabolome modifications after acute and chronic physical exercise
- Author
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Enea, C., Seguin, F., Petitpas-Mulliez, J., Boildieu, N., Boisseau, N., Delpech, N., Diaz, V., Eugène, M., and Dugué, B.
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- 2010
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106. Modelling detonation waves in condensed energetic materials: multiphase CJ conditions and multidimensional computations
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Petitpas, F., Saurel, Richard, Franquet, E., and Chinnayya, A.
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- 2009
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107. Indwelling time and risk of colonization of peripheral arterial catheters in critically ill patients
- Author
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Khalifa, Raphael, Dahyot-Fizelier, Claire, Laksiri, Leila, Ragot, Stéphanie, Petitpas, Franck, Nanadoumgar, Hodanou, Debaene, Bertrand, and Mimoz, Olivier
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- 2008
- Full Text
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108. Cervical necrotizing fasciitis: 8-years’ experience of microbiology
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Fihman, V., Raskine, L., Petitpas, F., Mateo, J., Kania, R., Gravisse, J., Resche-Rigon, M., Farhat, I., Berçot, B., Payen, D., Sanson-Le Pors, M. J., Herman, P., and Mebazaa, A.
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- 2008
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109. Luminous infrared galaxies with the submillimeter array: probing the extremes of star formation
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Wilson, C. D., Petitpas, G. R., Iono, D., Peck, A., Krips, M., Warren, B. E., Baker, A. J., Yun, M. S., Pihlstrom, Y., Mihos, C., Matsushita, S., Juvela, M., Ho, P. T. P., Cox, T. J., and Armus, L.
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- 2008
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110. A Life Skills Development Program for High School Student-Athletes
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Petitpas, Albert J., Van Raalte, Judy L., Cornelius, Allen E., and Presbrey, Jim
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- 2004
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111. Structural polymorphism of the major capsid protein of rotavirus
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Lepault, Jean, Petitpas, Isabelle, Erk, Inge, Navaza, Jorge, Bigot, Dominique, Dona, Michel, Vachette, Patrice, Cohen, Jean, and Rey, Félix A.
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- 2001
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112. Atomic structure of the major capsid protein of rotavirus: implications for the architecture of the virion
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Mathieu, Magali, Petitpas, Isabelle, Navaza, Jorge, Lepault, Jean, Kohli, Evelyne, Pothier, Pierre, Prasad, B.V.Venkataram, Cohen, Jean, and Rey, Félix A.
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- 2001
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113. Anesthésie en endoscopie digestive. Les modalités de la prise en charge
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Petitpas, E., Ponchon, T., and Souquet, J. C.
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- 1994
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114. Edge effect on unidirectional composite observed during acoustic emission monitoring of damage
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Petitpas, E. and Valentin, D.
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- 1992
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115. Pleth Variability Index predicts fluid responsiveness in critically ill patients
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Nanadoumgar, H, Loupec, TL, Frasca, DF, Petitpas, FP, Laksiri, LL, Baudouin, DB, and Mimoz, OM
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- 2011
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116. Competence Issue Ownership, Issue Positions and the Vote for the Greens and the Social Democrats
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Petitpas, Adrien and Sciarini, Pascal
- Abstract
Applying a consideration set approach to panel data, we contribute to the literature on intra‐bloc voting by studying the vote for the Greens and the Social Democrats in the 2019 Swiss elections. Theoretically, because the two parties are ideologically and programmatically so similar, we argue that potential left‐wing voters have a hard time making a final choice based on issue positions, and rely instead on their evaluations of parties' issue competence. The empirical tests partly support our expectations. Maintaining or shifting the attribution of competence on the environment to the Greens during the election campaign prompts potential left‐wing voters to end up voting for the Greens; similar effects hold for the Social Democrats regarding social policy. Yet, this does not wipe out the impact of issue positions, which also help potential left‐wing voters decide between the Greens and the Social Democrats. These results have important theoretical and practical implications. Dieser Artikel leistet einen Beitrag zur Literatur über die Wahl von Parteien, die demselben politischen Lager angehören, indem er den sogenannten «consideration set»‐Ansatz auf die Stimmabgabe für die Grünen und die Sozialdemokraten bei den Schweizer Nationalratswahlen 2019 anwendet. Da diese zwei Parteien ideologisch und programmatisch sehr ähnlich sind, stellen wir die Hypothese auf, dass linke WählerInnen ihre endgültige Wahlentscheidung nur schwer auf der Grundlage ihrer Präferenzen für politische Themen treffen können und sich stattdessen auf ihre Wahrnehmung der Kompetenz der beiden Parteien in diesen Themen stützen. Diese Erwartungen werden teilweise empirisch bestätigt. Die Beibehaltung oder Verschiebung der Kompetenzzuweisung an die Grünen in Umweltfragen während der Wahlkampagne erhöht die Wahrscheinlichkeit, die Grünen zu wählen. Die Sozialisten profitieren von ähnlichen Effekten in Bezug auf die Sozialpolitik. Dies hebt jedoch nicht den Einfluss der Positionierung bezüglich Themen auf, welche ebenfalls dazu beiträgt, dass linke Wähler sich für die eine oder andere Partei entscheiden. Cet article contribue à la littérature sur le vote à l'intérieur d'un camp politique, en appliquant l'approche dite du « consideration set » au vote pour les Verts et les Socialistes aux élections fédérales de 2019. Dans la mesure où ces deux partis sont idéologiquement très similaires, nous faisons l'hypothèse que les électeur/trices de gauche ont du mal à faire leur choix final sur la base des préférences en matière d'enjeux politiques, et s'appuient à la place sur leur perception de la compétence des deux partis. Ces attentes sont partiellement confirmées empiriquement. Le maintien ou le déplacement de l'attribution de compétence en faveur des Verts sur l'environnement durant la campagne électorale augmente la probabilité de voter pour les Verts; les Socialistes bénéficient d'effets similaires en lien avec la politique sociale. Cependant, ceci ne supprime pas l'influence de la position sur les enjeux, qui aide aussi les votants de gauche à départager ces partis.
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- 2022
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117. Identity Foreclosure: A Unique Challenge
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Petitpas, Al
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Foreclosure occurs when individuals prematurely make a firm commitment to an occupation or an ideology. If the pressure of having an occupational identity can be eased, then it may be possible to establish an environment in which foreclosed students could move toward the consolidation of their unique identities. (Author)
- Published
- 1978
118. Planning Developmental Interventions for Adult Students.
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Champagne, Delight E. and Petitpas, Al
- Abstract
Proposes framework for planning developmental interventions for adult college students. Outlines developmental tasks and provides overview of transitional processes of adulthood. Compares developmental versus mental health models of intervention. Delineates functional roles of student affairs staff in meeting developmental needs of adult students. (ABL)
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- 1989
119. Developmental Programming for Intercollegiate Athletes.
- Author
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Petitpas, Al and Champagne, Delight E.
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Outlines potential developmental concerns of intercollegiate athletes. Suggests a psychoeducational programming model and discusses implementation and evaluation considerations of such a model. (Author/NB)
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- 1988
120. Non-invasive ventilation versus high-flow nasal cannula oxygen therapy with apnoeic oxygenation for preoxygenation before intubation of patients with acute hypoxaemic respiratory failure: a randomised, multicentre, open-label trial.
- Author
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Frat, Jean-Pierre, Ricard, Jean-Damien, Quenot, Jean-Pierre, Pichon, Nicolas, Demoule, Alexandre, Forel, Jean-Marie, Mira, Jean-Paul, Coudroy, Rémi, Berquier, Guillaume, Voisin, Benoit, Colin, Gwenhaël, Pons, Bertrand, Danin, Pierre Eric, Devaquet, Jérome, Prat, Gwenael, Clere-Jehl, Raphaël, Petitpas, Franck, Vivier, Emmanuel, Razazi, Keyvan, and Nay, Mai-Anh
- Subjects
NASAL cannula ,VENTILATOR-associated pneumonia ,ADULT respiratory distress syndrome ,NONINVASIVE ventilation ,COMA ,OXYGEN therapy ,INTUBATION ,INTENSIVE care units - Abstract
Summary Background Non-invasive ventilation has never been compared with high-flow oxygen to determine whether it reduces the risk of severe hypoxaemia during intubation. We aimed to determine if preoxygenation with non-invasive ventilation was more efficient than high-flow oxygen in reducing the risk of severe hypoxaemia during intubation. Methods The FLORALI-2 multicentre, open-label trial was done in 28 intensive care units in France. Adult patients undergoing tracheal intubation for acute hypoxaemic respiratory failure (a partial pressure of arterial oxygen [PaO 2 ] to fraction of inspired oxygen [FiO 2 ] ratio of ≤300 mm Hg) were randomly assigned (1:1; block size, four participants) to non-invasive ventilation or high-flow oxygen during preoxygenation, with stratification by PaO 2 /FiO 2 ratio (≤200 mm Hg vs >200 mm Hg). Key exclusion criteria were intubation for cardiac arrest, altered consciousness (defined as a Glasgow coma score of less than eight points), other contraindications to non-invasive ventilation (recent laryngeal, oesophageal, or gastric surgery, and substantial facial fractures), pulse oximetry not available, pregnant or breastfeeding women, and refusal to participate. The primary outcome was the occurrence of severe hypoxaemia (pulse oximetry <80%) during the procedure, assessed in the intention-to-treat population. This trial is registered with ClinicalTrials.gov , number NCT02668458. Findings Between April 15, 2016, and Jan 8, 2017, 2079 patients were intubated in the 28 participating units, and 322 were enrolled. We excluded five patients with no recorded data, two who withdrew consent or were under legal protection, one who was not intubated, and one who had a cardiac arrest. Of the 313 patients included in the intention-to-treat analysis, 142 were assigned to non-invasive ventilation and 171 to high-flow oxygen therapy. Severe hypoxaemia occurred in 33 (23%) of 142 patients after preoxygenation with non-invasive ventilation and 47 (27%) of 171 with high-flow oxygen (absolute difference −4·2%, 95% CI −13·7 to 5·5; p=0·39). In the 242 patients with moderate-to-severe hypoxaemia (PaO 2 /FiO 2 ≤200 mm Hg), severe hypoxaemia occurred less frequently after preoxygenation with non-invasive ventilation than with high-flow oxygen (28 [24%] of 117 patients vs 44 [35%] of 125; adjusted odds ratio 0·56, 0·32 to 0·99, p=0·0459). Serious adverse events did not differ between treatment groups, with the most common immediate complications being systolic arterial hypotension (70 [49%] patients in the non-invasive ventilation group vs 86 [50%] patients in the high-flow oxygen group) and chest infiltrate on x-ray (28 [20%] vs 33 [19%]), and the most common late complications being death at day 28 (53 [37%] vs 58 [34%]) and ventilator-associated pneumonia during ICU stay (31 [22%] vs 35 [20%]). Interpretation In patients with acute hypoxaemic respiratory failure, preoxygenation with non-invasive ventilation or high-flow oxygen therapy did not change the risk of severe hypoxaemia. Future research should explore the effect of preoxygenation method in patients with moderate-to-severe hypoxaemia at baseline. Funding French Ministry of Health. [ABSTRACT FROM AUTHOR]
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- 2019
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121. A large area transition radiation detector for the NOMAD experiment
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C. Detraz, E. Manola-Poggioli, L. Mossuz, H. Pessard, A. Placci, P. Petitpas, P. Nedelec, G. Gaillard, M. Gouanere, M. Bermond, T. Bertozzi, V. Valuev, G. Bassompierre, C. Engster, P. Petit, J.-P. Mendiburu, M. Wachnik, J.-M. Gaillard, E. Palazzini, L. Dumps, R. Sottile, H. Vey, J.-M. Dubois, M. Berthet, D. Verkindt, D. Sillou, T. Fazio, 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), and NOMAD
- Subjects
Physics ,Nuclear and High Energy Physics ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,business.industry ,Detector ,Electron ,01 natural sciences ,Nuclear physics ,Transition radiation detector ,Optics ,Neutrino detector ,0103 physical sciences ,Radiator (engine cooling) ,Measurements of neutrino speed ,High Energy Physics::Experiment ,[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] ,Detectors and Experimental Techniques ,010306 general physics ,Neutrino oscillation ,business ,Instrumentation ,FOIL method - Abstract
A transition radiation detector to identify electrons at 90% efficiency with a rejection factor against pions of 103 on an area of 2.85 × 2.85 m2 has been constructed for the NOMAD experiment. Each of its 9 modules includes a 315 plastic foil radiator and a detector plane of 176 vertical straw tubes filled with a xenon-methane gas mixture. Details of the design, construction and operation of the detector are given.
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- 1998
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122. Long-term tissue cultures of human pleural effusions: A cytological follow-up
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Mouriquand, J., Mouriquand, C., Petitpas, E., and Mermet, M. A.
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- 1978
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123. The construction of the L3 experiment
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B. Adeva, M. Aguilar-Benitez, H. Akbari, J. Alcaraz, A. Aloisio, J. Alvarez-Taviel, G. Alverson, M.G. Alviggi, H. Anderhub, A.L. Anderson, A.M. Angelov, T.H. Angelov, G.H. Antchev, L. Antonov, D. Antreasyan, A. Arefiev, I.H. Atanasov, B. Auroy, R. Ayad, O.L. Ayranov, T. Azemoon, T. Aziz, U. Bachmann, P. Bähler, J.A. Bakken, L. Baksay, H. Baldinger, R.C. Ball, J. Ballansat, S. Banerjee, J. Bao, G. Barbier, L. Barone, G. Basti, A. Bay, F. Beauvais, U. Becker, R. Beissel, S. Bendig, P. Béné, J. Berdugo, P. Berges, M. Berthet, Y. Bertsch, B.L. Betev, A. Biland, A. Bischoff, M. Bischops, R. Bizzarri, J.J. Blaising, M. Blanc, P. Blömeke, B. Blumenfeld, G.J. Bobbink, M. Bocciolini, K.D. Boffin, W. Bohlen, A. Böhm, T. Böhringer, H. Bonnefon, C. Bopp, B. Borgia, K. Bosseler, J.F. Bottolier, M. Bourquin, D. Boutigny, P. Bowditch, J.G. Branson, D. Braun, I.C. Brock, F. Bruyant, M. Buchholz, B. Bücken, W. Bulgeroni, R. Burel, J.D. Burger, C. Burgos, J.P. Burq, L. Caiazzo, M. Caillat, B. Camberlin, D. Campana, C. Camps, V. Canale, M. Capell, F. Carbonara, F. Carminati, A.M. Cartacci, M. Cerrada, F. Cesaroni, Y.H. Chang, J.W. Chapman, M. Chemarin, A. Chen, C. Chen, H.F. Chen, H.S. Chen, M. Chen, M.L. Chen, S.R. Chendvankar, G. Chevenier, S. Chidzik, G. Chiefari, C.Y. Chien, F. Chollet, M. Chumakov, C. Civinini, I. Clare, R. Clare, G. Coignet, N. Colino, V. Commichau, G. Conforto, P. Cristofori, F. Crijns, X.Y. Cui, T.S. Dai, R. D'Alessandro, M. Daniel, X. De Bouard, B. Debye, G. Decreuse, A. Degré, K. Deiters, E. Dénes, P. Denes, F. DeNotaristefani, M. Deutschmann, M. Dhina, B. Didierjean, M. Diemoz, M. Dietrich, H.A. Dimitrov, C. Dionisi, F. Dittus, M. Dohmen, R. Dolin, J.F. Donahue, A. Donat, E. Drago, K.H. Dreger, T. Driever, G. Dromby, P. Duinker, I. Duran, M. Elkacimi, H. Elmamouni, A. Engler, F.J. Eppling, F.C. Erné, I. Erne, H. Esser, P. Extermann, R. Fabbretti, G. Faber, S. Falciano, T. Falk, S.J. Fan, M. Favre, J. Fay, S. Fehér, J. Fehlmann, M. Feldmann, H. Fenker, T. Ferguson, M. Fernandez, F. Ferroni, H. Fesefeldt, J. Field, J.M. Figarola, C.F. Figueroa, G.A. Filipov, B. Foligné, G. Forconi, T. Foreman, V. Franzke, W. Frei, K. Freudenreich, W. Friebel, M. Fukushima, G. Gaillard, M. Gailloud, Yu. Galaktionov, E. Gallo, S.N. Ganguli, D. Garelick, S.S. Gau, G. Gavrilov, E. Gennari, S. Gentile, M. Gettner, C. Girard, M. Glaubman, S. Goldfarb, Z.F. Gong, E. Gonzalez, A. Gordeev, Yu. Gorodkov, P. Göttlicher, C. Goy, M. Goyot, G. Gratta, A. Grimes, C. Grinnell, M. Gruenewald, M. Guanziroli, S. Guerra, C. Guillon, A. Gurtu, D. Güsewell, H.R. Gustafson, M. Haensli, M. Haan, C. Haller, T. Hamacher, H. Hammers, K. Hangarter, S. Hancke, M. Harris, D. Harting, F.G. Hartjes, C.F. He, A. Heavey, T. Hebbeker, M. Hebert, R. Heller, Ch. Helmrath, J. Herrmann, G. Herten, U. Herten, A. Hervé, H. Hesser, G. Hilgers, K. Hilgers, H. Hofer, M. Hofer, T. Hofer, F. Hoffmann, U. Horisberger, I. Horvath, L.S. Hsu, G.Q. Hu, B. Ille, M.M. Ilyas, G. Improta, V. Innocente, E. Isiksal, E. Jagel, B.N. Jin, L.W. Jones, M. Jongmanns, H. Jung, P. Kaaret, O. Kaelin, W. Kaestli, Yu. Kamyshkov, D. Kaplan, W. Karpinski, Y. Karyotakis, W. Kertzer, V. Khoze, G. Kirchhoff, W. Kittel, A. Klimentov, P.F. Klok, M. Kollek, M. Koller, A.C. König, O. Kornadt, V. Koutsenko, R.W. Kraemer, V.R. Krastev, A. Kratel, W. Krenz, A. Kuhn, A. Kunin, S. Kwan, J. Lacotte, M. LaMarra, G. Landi, W. Lange, K. Lanius, D. Lanske, S. Lanzano, J.M. Le Goff, J.C. Le Marec, D. Lea, M. Lebeau, P. Lebrun, P. Lecomte, J. Lecoq, P. Le Coultre, I. Leedom, A. Léger, F. Lehmann, L. Leistam, R. Leiste, E. Lejeune, B. Leoni, J. Lettry, X. Leytens, C. Li, H.T. Li, L. Li, P.J. Li, X.G. Li, J.Y. Liao, Z.Y. Lin, F.L. Linde, D. Linnhöfer, E. Loftin, W. Lohmann, S. Lökös, E. Longo, Y.S. Lu, J.M. Lubbers, K. Lübelsmeyer, C. Luci, D. Luckey, X. Lue, L. Luminari, G. Lunadei, F. Lürken, H. Ma, W.G. Ma, M. MacDermott, N. Madjar, R. Magahiz, M. Maire, P.K. Malhotra, A. Malinin, C. Mana, F. Manna, G. Manto, Y.F. Mao, M. Maolinbay, P. Marchesini, A. Marchionni, M. Markwalder, P. Marsden, J.P. Martin, L. Martinez, H.U. Martyn, F. Marzano, V. Marzullo, F. Masciocchi, G.G.G. Massaro, L. Massonnet, T. Matsuda, G. Maurelli, K. Mazumdar, P. McBride, G. Medici, H. Meier, Th. Meinholz, M. Merk, R. Mermod, L. Merola, M. Meschini, W.J. Metzger, M. Micke, U. Micke, G.B. Mills, J. Mnich, M. Moeller, A. Molinero, L. Montanet, B. Monteleoni, R. Montino, G. Morand, R. Morand, S. Morganti, V. Morgunov, R. Mount, M. Moynot, P. Mugnier, W. Nägeli, E. Nagy, M. Napolitano, S. Neboux, H. Newman, Ch. Neyer, K. Nguyen, L. Niessen, A. Nikitin, W.D. Nowak, M. Okle, P. Olmos, J. Onvlee, D. Osborne, J. Ossmann, D. Pandoulas, H. Paprotny, A. Parmentola, G. Passeggio, G. Paternoster, S. Patricelli, Y.J. Pei, Y. Peng, D. Perret-Gallix, J. Perrier, E. Perrin, G. Perrot, P. Petitpas, P. Petschner, A. Pevsner, J. Pier-Amory, M. Pieri, G. Pierschel, P.A. Piroué, V. Plyaskin, M. Pohl, V. Pojidaev, C.L.A. Pols, T. Ponomareff, J. Potyka, N. Produit, P. Prokofiev, F. Pruja, G. Pütz, J.M. Qian, R. Raghavan, P. Razis, K. Read, P. Reddick, K. Reissmann, D. Ren, S. Reucroft, D. Rey, M. Reynaud, X. Ricadonna, J-P. Richeux, C. Rippich, U. Rinsche, R. Rocco, S. Rodriguez, B.P. Roe, M. Röhner, S. Röhner, Th. Rombach, L. Romero, J. Rose, U. Röser, S. Rosier-Lees, J.A. Rubio, W. Ruckstuhl, H. Rykaczewski, P. Sahuc, J. Salicio, S. Saran, G. Sauvage, A. Savin, T. Schaad, B. Schafheitle, V. Schegelsky, A. Schetkovsky, F. Schild, R. Schillsott, P. Schmitt, D. Schmitz, P. Schmitz, M. Schneegans, M. Schneider, E. Schneevogt, M. Schöntag, D.J. Schotanus, H. Schuijlenburg, R. Schulte, A.Schultz Von Dratzig, K. Schultze, J. Schwenke, G. Schwering, C. Sciacca, P.G. Seiler, J.C. Sens, I. Sheer, V. Shevchenko, S. Shevchenko, X.R. Shi, K. Shmakov, V. Shoutko, E. Shumilov, R. Siedling, N. Smirnov, V. Souvorov, C. Souyri, I. Spangler, T. Spickermann, B. Spiess, P. Spillantini, R. Starosta, M. Steuer, D.P. Stickland, B. Stöhr, H. Stone, K. Strauch, K. Sudhakar, R.L. Sumner, H. Suter, R.B. Sutton, H. Szczesny, J. Tang, X.W. Tang, E. Tarkovsky, A. Tavenrath, V. Tchudakov, J.M. Thenard, E. Thomas, T. Thon, H. Thuerig, M. Thulen, C. Timmermans, Samuel C.C. Ting, S.M. Ting, F. Tonisch, Y.P. Tong, M. Tonutti, S.C. Tonwar, J. Tòth, W. Toth, G. Trowitzsch, K.L. Tung, J. Ulbricht, L. Urbàn, E. Valente, R.T. van de Walle, H. van der Graaf, V. Vanzanella, M. Vergain, I. Vetlitsky, H. Vey, G. Viertel, M. Vivargent, H. Vogel, S. Volkov, M. Vollmar, H.P. von Gunten, I. Vorobiev, A. Vorobyov, L. Vuilleumier, S. Waldmeier, W. Walk, W. Wallraff, C.Y. Wang, G.H. Wang, J.H. Wang, Q.F. Wang, X.L. Wang, Y.F. Wang, Z.M. Wang, D. Wassenberg, D. Wegmann, R. Weill, T.J. Wenaus, P. Wenger, J. Wenninger, M. White, R. Wilhelm, C. Willmott, H.P. Wirth, F. Wittgenstein, R.J. Wu, S.X. Wu, Y.G. Wu, B. Wyslouch, F.Y. Xi, Z.Z. Xu, Z.L. Xue, D.S. Yan, K.D. Yanev, B.Z. Yang, C.G. Yang, K.S. Yang, Q.Y. Yang, Z.Q. Yang, C.H. Ye, S.C. Yeh, Z.W. Yin, C. Zabounidis, L. Zehnder, Y. Zeng, D.H. Zhang, S.Y. Zhang, Z.P. Zhang, B. Zhou, J.F. Zhou, Z.P. Zhou, R.Y. Zhu, A. Zichichi, M. Zofka, J. Zoll, 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), Institut de Physique Nucléaire de Lyon (IPNL), 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), CMS, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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 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), L3, B., Adeva, Aloisio, Alberto, Alviggi, Mariagrazia, Canale, Vincenzo, Chiefari, Giovanni, Merola, Leonardo, Napolitano, Marco, Paternoster, Giovanni, Patricelli, Sergio, and Sciacca, Crisostomo
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Physics ,Nuclear and High Energy Physics ,Wire chamber ,Particle physics ,Muon ,Photon ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,Detector ,Electron ,01 natural sciences ,Particle detector ,Nuclear physics ,0103 physical sciences ,Large Electron–Positron Collider ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Measuring instrument ,High Energy Physics::Experiment ,010306 general physics ,Instrumentation - Abstract
The L3 experiment is one of the six large detectors designed for the new generation of electron-positron accelerators. It is the only detector that concentrates its efforts on limited goals of measuring electrons, muons and photons. By not attempting to identify hadrons, L3 has been able to provide an order of magnitude better resolution for electrons, muons and photons. Vertices and hadron jets are also studied. The construction of L3 has involved much state of the art technology in new principles of vertex detection and in new crystals for large scale electromagnetic shower detection and ultraprecise muon detection. This paper presents a summary of the construction of L3.
- Published
- 1990
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124. Fatigue damage mechanisms in (0, 90)s composite laminate
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Petitpas, E., Renault, M., and Valentin, D.
- Published
- 1989
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125. Short‐Term Dynamics in Issue Ownership and Electoral Choice Formation
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Petitpas, Adrien and Sciarini, Pascal
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In light of the increased volatility in party preference and alleged importance of issue voting, the scarce knowledge about how short‐term stability and change in issue ownership perceptions influence stability and change of party choice is puzzling. This paper fills a gap by examining whether and to what extent the three pathways of electoral choice formation (activation, conversion and reinforcement) occur in line with the dynamics of issue competence evaluations. Our analysis of panel data from the 2015 Swiss election study shows that the stability and change in issue ownership perceptions is highly consequential. Citizens who change or maintain their competence attribution in favor of a party during the electoral campaign are more likely to activate, convert or reinforce their vote for that party. The results regarding the conditional effects of issue salience are more mixed, but not less interesting.
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- 2018
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126. Electronic chain for the readout of a fast liquid argon prototype calorimeter
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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
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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. >
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- 2002
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127. Performance of a prototype aerogel counter readout by fine mesh photo-tubes
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M. A. Mazzoni, G.M. Kolachev, R. Santacesaria, J. Oyang, Y. Karyotakis, M. Berthet, K. Arisaka, G. Piredda, A. G. Shamov, Valery I. Telnov, M. Foucher, I. De Bonis, S. Morganti, D. Boutigny, S.F. Ganzhur, Ezio Torassa, J.M. Dubois, E. Borsato, P. Petitpas, M. Posocco, J. Favier, F. Ferroni, A. P. Onuchin, Mauro Morandin, H. Jawahery, F. Dalcorso, V. Mikerov, F. Iacovella, Remi Lafaye, E. A. Kravchenko, C. Voci, R. Stroili, V.A. Tayursky, and A. R. Buzykaev
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Physics ,Nuclear and High Energy Physics ,Photomultiplier ,Fabrication ,Physics::Instrumentation and Detectors ,business.industry ,Detector ,Monte Carlo method ,BaBar experiment ,Aerogel ,Particle identification ,Nuclear physics ,Optics ,High Energy Physics::Experiment ,business ,Instrumentation ,Refractive index - Abstract
The BaBar experiment, in order to achieve its physics program, requires pion/kaon identification capability up to 4.3 GeV/ c . The recent development of new processes has lead to the fabrication of low density silica aerogel with high optical quality. An aerogel threshold counter using the combination of two refractive indices (1.055 and 1.007) can be used to complete the angular coverage of the particle identification system in the forward region of the BaBar experiment. We present final test-beam results on a two-layer aerogel prototype, readout by Hamamatsu fine mesh photo-tubes, as required by the high magnetic field environment of the BaBar experiment. Several configurations have been tested, with different aerogels, photo-tubes and reflective materials. A comparison between data and a detailed Monte Carlo simulation is also presented. The result of the test shows that such a detector can achieve the desired performances.
- Published
- 1997
128. Coping with verbal gamesmanship in golf: The PACE model
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Trammel, Richard, Van Raalte, Judy L., Brewer, Britton W., and Petitpas, Albert J.
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ABSTRACTGamesmanship is an act or verbal gesture used to psychologically unsettle opponents to gain an advantage in sport competition. Although verbal gamesmanship, colloquially known as trash talk, is most frequently used in the sports of ice hockey, American football, and basketball, it also has been found to occur in the game of golf. The purpose of this article is to help athletes, coaches, and sport psychologists to understand and develop strategies to cope with verbal gamesmanship in golf. To this end, verbal gamesmanship is described and the acronym PACE, theoretically grounded in a cognitive-behavioral approach, is presented as a tool that golfers can use to respond to verbal gamesmanship. PACE can help golfers to remind themselves to Pause, Assess, Concentrate, and Execute, all of which can be helpful when faced with verbal gamesmanship in golf settings.
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- 2017
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129. Athletic identity foreclosure
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Brewer, Britton W and Petitpas, Albert J
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•Athletic identity foreclosure is most pronounced during late adolescence.•It is responsive to changes in sport participation status.•It is related to a broad range of psychosocial factors.•It has been linked with substance use, career, burnout, and transition issues.
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- 2017
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130. Helping to Improve the Mental Health of Canadians
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Taylor, Honourable Ginette Petitpas
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- 2017
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131. LIQUID ARGON CALORIMETRY WITH LHC-PERFORMANCE SPECIFICATIONS
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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
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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.
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- 1992
132. High strain rate model involving damage by adiabatic shear banding and related anisotropy
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Longere, P., Dragon, A., Trumel, H., de Rességuier, T., Deprince, X., Petitpas, E., Longere, P., Dragon, A., Trumel, H., de Rességuier, T., Deprince, X., and Petitpas, E.
- Abstract
In the present work, we are interested in the three-dimensional description of the behaviour of a high strength material susceptible to adiabatic shear banding. The high strain rate constitutive model, based on irreversible thermodynamics, bas been formulated in order to be applied in the context of high velocity impact and penetration mechanics, and bas been implemented as `user material' in the finite element code LS-DYNA. Some preliminary numerical results are shown in the case of the loading of a plate hat specimen between Hopkinson pressure bars.
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- 2003
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133. Modèle de comportement dynamique d'un matériau en présence de l'endommagement par cisaillement adiabatique
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Longère, P., Dragon, A., Trumel, H., de Resseguier, T., Deprince, X., Petitpas, E., Longère, P., Dragon, A., Trumel, H., de Resseguier, T., Deprince, X., and Petitpas, E.
- Abstract
L'objectif industriel du travail dans lequel s'inscrit ce papier est la simulation numérique de la réponse de structures à l'impact. Or, pour un grand nombre de matériaux métalliques à haute résistance soumis à des sollicitations à grande vitesse, le cisaillement adiabatique constitue un processus endommageant conduisant souvent à la ruine par macrofissuration. Nous présentons ici un modèle continu qui, construit sur des bases thermodynamiques, rend compte du comportement thermo-élasto/viscoplastique du matériau sain et de l'anisotropie mécanique (dégradation directionnelle des modules élastiques et viscoplastiques induite par la présence des bandes de cisaillement adiabatique dans le matériau endommagé. Dans notre démarche de modélisation qui tend à refléter les constats expérimentaux, la population de bandes est représentée par une variable tensorielle d'endommagement au sein d'un matériau homogène équivalent. Le modèle est formulé dans le cadre des transformations finies élasto-plastiques avec prise en compte de l'anisotropie induite. Sa particularisation au cas des petites perturbations est illustrée pour certains processus homogènes.
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- 2002
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134. Sequential Application of Oxygen Therapy Via High-Flow Nasal Cannula and Noninvasive Ventilation in Acute Respiratory Failure: An Observational Pilot Study.
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Frat, Jean-Pierre, Brugiere, Benjamin, Ragot, Stéphanie, Chatellier, Delphine, Veinstein, Anne, Goudet, Véronique, Coudroy, Rémi, Petitpas, Franck, Robert, René, Thille, Arnaud W., and Girault, Christophe
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OXYGEN therapy ,RESPIRATORY insufficiency treatment ,ACADEMIC medical centers ,ANALYSIS of variance ,ARTIFICIAL respiration ,FISHER exact test ,LONGITUDINAL method ,SCIENTIFIC observation ,RESPIRATORY insufficiency ,RESPIRATORY therapy equipment ,STATISTICS ,PILOT projects ,DATA analysis ,VISUAL analog scale ,CONTINUING education units ,REPEATED measures design ,RECEIVER operating characteristic curves ,DATA analysis software ,DESCRIPTIVE statistics ,GLASGOW Coma Scale - Abstract
BACKGROUND: The aim of this study was to evaluate the clinical efficacy of humidified oxygen via high-flow nasal cannula (HFNC) alternating with noninvasive ventilation (NIV) in acute hypoxemic respiratory failure (AHRF). METHODS: We performed a prospective observational study in a 12-bed ICU of a university hospital. All subjects with a P
aO 2 /FIO 2 of ≤ 300 mm Hg with standard mask oxygen and a breathing frequency of > 30 breaths/min or signs of respiratory distress were included and treated with HFNC first and then NIV. Ventilatory parameters, blood gases, and tolerance were recorded during 2 consecutive sessions of NIV and HFNC. Outcome was assessed after continuation of this noninvasive strategy. RESULTS: Twenty-eight subjects with AHRF were studied, including 23 (82%) with ARDS. Compared with standard oxygen therapy, PaO 2 - significantly increased from 83 (68-97) mm Hg to 108 (83-140) mm Hg using HFNC and to 125 (97-200) mm Hg using NIV (P < .01), whereas breathing frequency significantly decreased. HFNC was significantly better tolerated than NIV, with a lower score on the visual analog scale. The non-intubated subjects received HFNC for 75 (27-127) h and NIV for 23 (8-31) h. Intubation was required in 10 of 28 subjects (36%), including 8 of 23 subjects with ARDS (35%). After HFNC initiation, a breathing frequency of ≥ 30 breaths/min was an early factor associated with intubation. CONCLUSIONS: HFNC was better tolerated than NIV and allowed for significant improvement in oxygenation and tachypnea compared with standard oxygen therapy in subjects with AHRF, a large majority of whom had ARDS. Thus, HFNC may be used between NIV sessions to avoid marked impairment of oxygenation. [ABSTRACT FROM AUTHOR]- Published
- 2015
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135. Use of Multi-scale Approach for Vehicle Weight Reduction Study.
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Paquet, Romain, Lebaillif, David, and Petitpas, Eric
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MULTISCALE modeling ,ARMORED military vehicle design & construction ,AUTOMOBILE weight ,MATERIAL fatigue ,MECHANICAL models ,MATHEMATICAL singularities - Abstract
Abstract: This paper presents the use of the multi-scale approach developed by Nexter, to study the weight reduction of military armored vehicles. The fatigue design of such mechanical system is often complex due to the gap between the scale of the system and the scale at which the fatigue phenomenon occurs. The multi-scale approach developed by Nexter involves first simulating the dynamic behavior of the mechanical system, then a dynamic finite element model coupled with a global fatigue criterion identifies the weak points location of the structure for different combination of loads. By focusing on these hot spots, local modeling including geometric singularities are done to assess fatigue life. This process is illustrated on a vehicle structure to study different concepts of weight reduction. [Copyright &y& Elsevier]
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- 2013
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136. TRANSFORMATIONS DE L'ACTE ALIMENTAIRE CHEZ LES INNUS ET RAPPORTS IDENTITAIRES.
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Roy, Bernard, Labarthe, Jenni, and Petitpas, Judith
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TYPE 2 diabetes ,DISEASE prevalence ,FOOD industry ,SOCIAL stratification ,TWENTIETH century ,GLOBALIZATION ,SOCIOECONOMICS - Published
- 2013
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137. Effects of alcohol consumption on biomarkers of oxidative damage to DNA and lipids in ethanol-fed pigs.
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Petitpas, F., Sichel, F., Hébert, B., Lagadu, S., Beljean, M., Pottier, D., Laurentie, M., and Prevost, V.
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BIOMARKERS ,ALCOHOL drinking ,OXIDATIVE stress ,DNA damage ,LIPIDS ,ETHANOL ,TISSUE wounds ,RESPIRATORY diseases ,MALONDIALDEHYDE ,DEOXYGUANOSINE - Abstract
Abstract: Chronic alcohol consumption is known to result in tissue injury, particularly in the liver, and is considered a major risk factor for cancers of the upper respiratory tract. Here we assessed the oxidative effects of subchronic ethanol consumption on DNA and lipids by measuring biomarkers 8-oxo-7,8-dihydro-2′-deoxyguanosine (8-oxodG) and malondialdehyde (MDA), respectively. Physiological responses of pigs (n =4) administered ethanol in drinking water for 39 days were compared with those of water-fed pigs (n =4). Alcoholisation resulted in serum ethanol concentration of 1.90gL
−1 and in a moderate but significant increase in alanine aminotransferase activity, an index of liver injury. However, between the alcoholised and control groups there were no significant differences in the levels of 8-oxodG (8-oxodG per 106 2′deoxyguanosine) from leucocytes (2.52±0.42 Vs 2.39±0.34) or from target organs, liver, cardia and oesophagus. Serum MDA levels were also similar in ethanol-fed pigs (0.33±0.04μM) and controls (0.28±0.03μM). Interestingly, levels of 8-oxodG in cardia were positively correlated with those in oesophagus (Spearman correlation coefficient R =1, P <0.0001). Our results suggest that alcohol consumption may not cause oxidative damage to DNA and lipids as measured by 8-oxodG and MDA, respectively. The duration of alcoholisation and the potential alcohol-induced nutritional deficiency may be critical determinants of ethanol toxicity. Relevant biomarkers, such as factors involved in sensitization to ethanol-induced oxidative stress are required to better elucidate the relationship between alcohol consumption, oxidative stress and carcinogenesis. [Copyright &y& Elsevier]- Published
- 2013
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138. Factors Associated With the Mediastinal Spread of Cervical Necrotizing Fasciitis.
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Petitpas, Franck, Blancal, Jean-Philippe, Mateo, Joaquim, Farhat, Iyed, Naija, Walid, Porcher, Raphael, Beigelman, Catherine, Boudiaf, Mourad, Payen, Didier, Herman, Philippe, and Mebazaa, Alexandre
- Subjects
NECROTIZING fasciitis ,MEDIASTINUM diseases ,MEDICAL records ,HOSPITAL care ,TOMOGRAPHY ,MULTIVARIATE analysis ,DISEASE incidence ,GLUCOCORTICOIDS ,PATIENTS - Abstract
Background: We conducted a study to determine factors associated with the occurrence of mediastinitis in patients hospitalized for cervical necrotizing fasciitis (CNF). Methods: We reviewed the medical records of 130 consecutive patients in an intensive care unit (ICU) who were hospitalized with a diagnosis of CNF. Two radiologists reviewed cervical and thoracic computed tomography (CT) scans to determine the source and extension of the infection in each patient. Results: Among the cohort of 130 patients with CNF, 37 (28%) had mediastinitis at the time of their admission (which in 13 cases was superior, or above the aortic arch, and in 24 cases inferior). Cervical necrotizing fasciitis complicated by mediastinitis resulted in a longer stay in the ICU than did CNF without mediastinitis, of a mean of 29 days (range, 18 to 39 days) versus 14 days (range, 9 to 19) days, respectively (p < 0.0001). Multivariate analysis revealed that the presence of mediastinitis was associated with oral intake of glucocorticoids before admission (odds ratio [OR], 2.17; range, 0.99 to 4.76), a pharyngeal focus of CNF (OR, 2.17; range, 1.04 to 4.53), or gas seen on an initial CT scan (OR, 4.49; range, 2.15 to 9.38). Both a pharyngeal focus of fasciitis and the presence of gas were strong independent predictors of inferior mediastinitis (OR, 15.1; range, 4.9 to 46.4; p < 0.0001). Conclusions: The present study is the first to describe three independent factors associated with extension of cervical fasciitis to the thoracic cavity, including glucocorticoid intake before admission, and confirms previous reports of a high incidence of mediastinitis in patients with CNF. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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139. Enseigner la variation lexicale en classe de FLE.
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Petitpas, Thiery
- Published
- 2010
140. PHYSICAL PROPERTIES AND MORPHOLOGY OF A NEWLY IDENTIFIED COMPACT z = 4.04 LENSED SUBMILLIMETER GALAXY IN ABELL 2218
- Author
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Knudsen, Kirsten K., Kneib, Paul, Richard, Johan, Petitpas, Glen, and Egami, Eiichi
- Abstract
We present the identification of a bright submillimeter (submm) source, SMM J163555.5+661300, detected in the lensing cluster Abell 2218, for which we have accurately determined the position using observations from the Submillimeter Array (SMA). The identified optical counterpart has a spectroscopic redshift of z = 4.044 +- 0.001 if we attribute the single emission line detected at l = 6140 A to Lya. This redshift identification is in good agreement with the optical/near-infrared photometric redshift as well as the submm flux ratio S 450/S 850[?] 1.6, the radio-submm flux ratio S 1.4/S 850 < 0.004, and the 24 mm to 850 mm flux ratio S 24/S 850 < 0.005. Correcting for the gravitational lensing amplification of [?]5.5, we find that the source has a far-infrared luminosity of 1.3 x 1012 L , which implies a star formation rate (SFR) of 230 M yr-1. This makes it the lowest-luminosity submillimeter galaxy (SMG) known at z>4 to date. Previous CO(4-3) emission line observations yielded a non-detection, for which we derived an upper limit of the CO line luminosity of $L_{\rm CO}^{^{\prime }} = 0.3\times 10^{10}$ K km s-1 pc-2, which is not inconsistent with the $L^{^{\prime }}_{\rm CO}$-L FIR relation for starburst galaxies. The best-fit model to the optical and near-infrared photometry give a stellar population with an age of 1.4 Gyr and a stellar mass of 1.6 x 1010 M . The optical morphology is compact and in the source plane the galaxy has an extent of [?]6 x 3 kpc with individual star-forming knots of <500 pc in size. J163556 is not resolved in the SMA data, and we place a strict upper limit on the size of the starburst region of 8 kpc x 3 kpc, which implies a lower limit on the SFR surface density of 12 M yr-1 kpc2. The redshift of J163556 extends the redshift distribution of faint, lensed SMGs, and we find no evidence that these have a different redshift distribution than bright SMGs.
- Published
- 2010
141. Three Stages Modeling of n-Octane Reforming Assisted by a Nonthermal Arc Discharge.
- Author
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Gonzalez-Aguilar, José, Petitpas, Guillaume, Lebouvier, Alexandre, Rollier, Jean-Damien, Darmon, Adeline, and Fulcheri, Laurent
- Published
- 2009
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142. THE AzTEC/SMA INTERFEROMETRIC IMAGING SURVEY OF SUBMILLIMETER-SELECTED HIGH-REDSHIFT GALAXIES
- Author
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Younger, Joshua D., Fazio, Giovanni G., Huang, Sheng, Yun, Min S., Wilson, Grant W., N, Matthew L., Gurwell, Mark A., Peck, Alison B., Petitpas, Glen R., Wilner, David J., Hughes, David H., Aretxaga, Itziar, Kim, Sungeun, Scott, Kimberly S., Austermann, Jason, Perera, Thushara, and Lowenthal, James D.
- Abstract
We present results from a continuing interferometric survey of high-redshift submillimeter galaxies (SMGs) with the Submillimeter Array, including high-resolution (beam size [?]2 arcsec) imaging of eight additional AzTEC 1.1 mm selected sources in the COSMOS field, for which we obtain six reliable (peak signal-to-noise ratio (S/N) >5 or peak S/N >4 with multiwavelength counterparts within the beam) and two moderate significance (peak S/N >4) detections. When combined with previous detections, this yields an unbiased sample of millimeter-selected SMGs with complete interferometric follow up. With this sample in hand, we (1) empirically confirm the radio-submillimeter association, (2) examine the submillimeter morphology--including the nature of SMGs with multiple radio counterparts and constraints on the physical scale of the far infrared--of the sample, and (3) find additional evidence for a population of extremely luminous, radio-dim SMGs that peaks at higher redshift than previous, radio-selected samples. In particular, the presence of such a population of high-redshift sources has important consequences for models of galaxy formation--which struggle to account for such objects even under liberal assumptions--and dust production models given the limited time since the big bang.
- Published
- 2009
143. LUMINOUS INFRARED GALAXIES WITH THE SUBMILLIMETER ARRAY. II. COMPARING THE CO (3-2) SIZES AND LUMINOSITIES OF LOCAL AND HIGH-REDSHIFT LUMINOUS INFRARED GALAXIES
- Author
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Iono, Daisuke, Wilson, Christine D., Yun, Min S., Baker, Andrew J., Petitpas, Glen R., Peck, Alison B., Krips, Melanie, Matsushita, Satoki, Mihos, Christopher, and Pihlstrom, Ylva
- Abstract
We present a detailed comparison of the CO (3-2) emitting molecular gas between a local sample of luminous infrared galaxies (U/LIRGs) and a high-redshift sample that comprises submm selected galaxies (SMGs), quasars, and Lyman Break Galaxies (LBGs). The U/LIRG sample consists of our recent CO (3-2) survey using the Submillimeter Array while the CO (3-2) data for the high-redshift population are obtained from the literature. We find that the $L^{^{\prime }}_{\rm CO(3-2)}$ and L FIR relation is correlated over five orders of magnitude, which suggests that the molecular gas traced in CO (3-2) emission is a robust tracer of dusty star formation activity. The near unity slope of 0.93 +- 0.03 obtained from a fit to this relation suggests that the star formation efficiency is constant to within a factor of 2 across different types of galaxies residing in vastly different epochs. The CO (3-2) size measurements suggest that the molecular gas disks in local U/LIRGs (0.3-3.1 kpc) are much more compact than the SMGs (3-16 kpc), and that the size scales of SMGs are comparable to the nuclear separation (5-40 kpc) of the widely separated nuclei of U/LIRGs in our sample. We argue from these results that the SMGs studied here are predominantly intermediate stage mergers, and that the wider line widths arise from the violent merger of two massive gas-rich galaxies taking place deep in a massive halo potential.
- Published
- 2009
144. SMA 12CO(J = 6 - 5) AND 435 ?m INTERFEROMETRIC IMAGING OF THE NUCLEAR REGION OF Arp 220
- Author
-
Matsushita, Satoki, Iono, Daisuke, Petitpas, Glen R., C, Richard, Gurwell, Mark A., Hunter, Todd R., Lim, Jeremy, Muller, Sebastien, Peck, Alison B., Sakamoto, Kazushi, Sawada, Satoko, Wiedner, Martina C., Wilner, David J., and Wilson, Christine D.
- Abstract
We have used the Submillimeter Array (SMA) to make the first interferometric observations (beam size [?]1'' or [?]400 pc) of the 12CO J = 6 - 5 line and 435 mm (690 GHz) continuum emission toward the central region (half power field of view 17'') of the nearby ultra-luminous infrared galaxy (ULIRG) Arp 220. These observations resolve the eastern and western nuclei from each other, in both the molecular line and dust continuum emission. At 435 mm, the peak intensity of the western nucleus is stronger than the eastern nucleus, and the difference in peak intensities is less than at longer wavelengths. Fitting a simple model to the dust emission observed between 1.3 mm and 435 mm suggests that dust emissivity power law index in the western nucleus is near unity and steeper in the eastern nucleus, about 2, and that the dust emission is optically thick at the shorter wavelength. Comparison with single dish measurements indicate that the interferometer observations are missing [?]60% of the dust emission, most likely from a spatially extended component to which these observations are not sensitive. The 12CO J = 6 - 5 line observations clearly resolve kinematically the two nuclei. The distribution and kinematics of the 12CO J = 6 - 5 line appear to be very similar to lower J CO lies observed at similar resolution. Analysis of multiple 12CO line intensities indicates that the molecular gas in both nuclei have similar excitation conditions, although the western nucleus is warmer and denser. The excitation conditions are similar to those found in other extreme environments, including the nearby starburst galaxy M82, the active galactic nucleus (AGN) hosting ULIRG Mrk 231, and the high-z QSO BR 1202-0725. Simultaneous lower resolution observations of the 12CO, 13CO, and C18O J = 2 - 1 lines show that the 13CO and C18O lines have similar intensities, which suggests that both of these lines are optically thick, or possibly that extreme high mass star formation has produced in an overabundance of C18O.
- Published
- 2009
145. NOMMER L'INTIMIDATION: EN MILIEU DE TRAVAIL LES TRAVAILLEUSES BRISENT LE SILENCE.
- Author
-
Petitpas-Taylor, Ginette
- Published
- 2009
146. Submillimeter Array Imaging of the CO(3-2) Line and 860 ?m Continuum of Arp 220: Tracing the Spatial Distribution of Luminosity
- Author
-
Sakamoto, Kazushi, Wang, Junzhi, Wiedner, Martina C., Wang, Zhong, Peck, Alison B., Zhang, Qizhou, Petitpas, Glen R., P, Paul T., and Wilner, David J.
- Abstract
We used the Submillimeter Array (SMA) to image 860 mm continuum and CO(3-2) line emission in the ultraluminous merging galaxy Arp 220, achieving a resolution of 0.23
'' (80 pc) for the continuum and 0.33
'' (120 pc) for the line. The CO emission peaks around the two merger nuclei with a velocity signature of gas rotation around each nucleus and is also detected in a kiloparsec-size disk encompassing the binary nucleus. The dust continuum, in contrast, is mostly from the two nuclei. The beam-averaged brightness temperature of both line and continuum emission exceeds 50 K at and around the nuclei, revealing the presence of warm molecular gas and dust. The dust emission morphologically agrees with the distribution of radio supernova features in the east nucleus, as expected when a starburst heats the nucleus. In the brighter west nucleus, however, the submillimeter dust emission is more compact than the supernova distribution. The 860 mm core, after deconvolution, has a size of 50-80 pc, consistent with recent 1.3 mm observations, and a peak brightness temperature of
(0.9-1.6) x 102 K. Its bolometric luminosity is at least
2 x 1011 L and could be ~1012 L depending on source structure and 860 mm opacity, which we estimate to be of the order of
t860 [?] 1 (i.e.,
NH2 [?] 1025 cm [?]2). The starbursting west nuclear disk must have in its center a dust enshrouded AGN or a very young starburst equivalent to hundreds of super star clusters. Further spatial mapping of bolometric luminosity through submillimeter imaging is a promising way to identify the heavily obscured heating sources in Arp 220 and other luminous infrared galaxies.
- Published
- 2008
147. Results from an Extensive Simultaneous Broadband Campaign on the Underluminous Active Nucleus M81*: Further Evidence for Mass-scaling Accretion in Black Holes
- Author
-
Markoff, Sera, Nowak, Michael, Young, Andrew, Marshall, Herman L., Canizares, Claude R., Peck, Alison, Krips, Melanie, Petitpas, Glen, Schodel, Rainer, Bower, Geoffrey C., Chandra, Poonam, Ray, Alak, Muno, Michael, Gallagher, Sarah, Hornstein, Seth, and Cheung, Chi C.
- Abstract
We present the results of a broadband simultaneous campaign on the nearby low-luminosity active galactic nucleus M81*. From 2005 February through August, we observed M81* five times using the Chandra X-Ray Observatory with the HETGS, complemented by ground-based observations with the Giant Meterwave Radio Telescope, the Very Large Array and Very Large Baseline Array, the Plateau de Bure Interferometer at IRAM, the Submillimeter Array, and Lick Observatory. We discuss how the resulting spectra vary over short and longer timescales compared to previous results, especially in the X-rays where this is the first ever longer term campaign at spatial resolution high enough to nearly isolate the nucleus (17 pc). We compare the spectrum to our Galactic center weakly active nucleus Sgr A*, which has undergone similar campaigns, as well as to weakly accreting X-ray binaries in the context of outflow-dominated models. In agreement with recent results suggesting that the physics of weakly accreting black holes scales predictably with mass, we find that the exact same model that successfully describes hard-state X-ray binaries applies to M81*, with very similar physical parameters.
- Published
- 2008
148. Thermodynamics and Kinetics Analysis of Gasoline Reforming Assisted by Arc Discharge.
- Author
-
Rollier, Jean-Damien, Petitpas, Guillaume, Gonzalez-Aguilar, José, Darmon, Adeline, Fulcheri, Laurent, and Metkemeijer, Rudolf
- Published
- 2008
- Full Text
- View/download PDF
149. Experimental Study on Gasoline Reforming Assisted by Nonthermal Arc Discharge.
- Author
-
Rollier, Jean-Damien, Gonzalez-Aguilar, José, Petitpas, Guillaume, Darmon, Adeline, Fulcheri, Laurent, and Metkemeijer, Rudolf
- Published
- 2008
- Full Text
- View/download PDF
150. High-Resolution Imaging of Warm and Dense Molecular Gas in the Nuclear Region of the Luminous Infrared Galaxy NGC 6240
- Author
-
Iono, Daisuke, Wilson, Christine D., Takakuwa, Shigehisa, Yun, Min S., Petitpas, Glen R., Peck, Alison B., P, Paul T., Matsushita, Satoki, Pihlstrom, Ylva M., and Wang, Zhong
- Abstract
We present ~2'' resolution CO (3-2), HCO+(4-3), and 880 mm continuum images of the luminous infrared galaxy NGC 6240 obtained at the Submillimeter Array. We find that the spatially resolved CO (3-2), HCO + (4-3), and the 880 mm emission peaks between the two nuclear components that are both known to harbor AGNs. Our large velocity gradient (LVG) analysis performed on each velocity channel suggests that the peak of the molecular gas emission traced in our observations is warm (T = 20-100 K), dense (nH2 = 105.0-105.4 cm-3), and moderately optically thin (t = 0.2-2) in the central 1 kpc. We also find large column densities of ~1023 cm-2. Such extreme conditions are observed over ~300 km s-1 centered around the CO-derived systemic velocity. The derived molecular gas mass from the CO (3-2) emission and a CO-to-H2 conversion factor commonly used for ULIRGs is (6.9 +- 1.7) x 109 M, and this is consistent with the mass derived from previous CO (2-1) observations. The gas is highly turbulent in the central kpc (DvFWZI ~ 1175 km s-1). Furthermore, possible inflow or outflow activity is suggested from the CO (3-2) velocity distribution. We tentatively state that 3.5 x 108 M of isolated CO (3-2) emission seen west of the northern disk may be associated with outflows from starburst superwinds, but the gas outflow scenario from one of the central AGN is not completely ruled out. Piecing all of the information together, the central region of NGC 6240 harbors 2 AGNs, ~1010 M of molecular gas mass, 5 x 107 M of dust mass, and has possible evidence of inflow and outflow activity.
- Published
- 2007
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