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10 results on '"J. Favier"'

1. Head injuries in children: a chronicle of a quarter of a century

Author

B. Rilliet, J. Favier, and J. Berney

Subjects
medicine.medical_specialty, Pediatrics, Adolescent, Poison control, Severity of Illness Index, Suicide prevention, Medical Records, Occupational safety and health, Head trauma, Injury prevention, Epidemiology, medicine, Humans, Glasgow Coma Scale, Child, Retrospective Studies, business.industry, Incidence (epidemiology), Accidents, Traffic, Infant, Newborn, Brain, Infant, General Medicine, Surgery, Survival Rate, Treatment Outcome, El Niño, Brain Injuries, Child, Preschool, Pediatrics, Perinatology and Child Health, Neurology (clinical), business, Switzerland
Abstract

Children aged 0-15 years hospitalized in Geneva for head trauma during the last quarter of a century are reviewed. More than half of the severely injured children were not from Geneva area. New methods of management have been introduced progressively. The cases are divided in four successive time periods and classified according to their pathology. A continuous improvement in mortality is obvious, decreasing from 29.4% to 2.2%, but climbing again to 15.2% in the last period, probably due to more severe pathologies. For the Geneva area the mortality decreased progressively from 10.4/100,000 to 3.5/100,000 annually, due to better organization and management, but also to a drop in the incidence of severe cases from 35.5-13.5/100,000 per year. A decrease in the number of traffic accidents is responsible for this. However, the number of handicapped children has not changed.

Published
1995
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2. Oligodendroglial tumors in childhood

Author

J. Favier, J. Berney, and G. P. Pizzolato

Subjects
Male, medicine.medical_specialty, Pediatrics, Pathology, Adolescent, Biopsy, Oligodendroglioma, World health, Histological diagnosis, medicine, Humans, Oligodendroglial Tumor, Child, Selection (genetic algorithm), Brain Neoplasms, business.industry, Brain, Calcinosis, Glioma, General Medicine, Prognosis, Child, Preschool, Pediatrics, Perinatology and Child Health, Female, Neurology (clinical), Neurosurgery, business
Abstract

A series of 20 hemispheric tumors in children less than 16 years of age, over a period of 20 years, is presented. Among them, 8 were oligodendroglial tumors, a proportion well above the level reported in the literature. The World Health Organization (WHO) classification, which includes mixed oligoastrocytomas, in the oligodendrogliomas was used. This addition does not explain this unusually high proportion. Selection of cases and the correct histological diagnosis are probably important.

Published
1985
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3. ? 0 and? production in deep inelastic ?-p interactions at 280 GeV/c

Author

J. Favier, Uwe Pietrzyk, Michele Arneodo, M. Whalley, A. W. Edwards, J.M. Thenard, J. Figiel, H. Pessard, G. Berghoff, M. Pötsch, P. R. Norton, Geoffrey Taylor, P. Grafström, F. Combley, M. Maire, C. P. Bee, F. G. Oakham, P. Malecki, J. G. Loken, T. Dreyer, J. Gajewski, Hans Calén, G. Eszes, Jozsef Toth, W.S.C. Williams, Stephen Wimpenny, F. Janata, P. Payre, I. Derado, W. Mohr, G. Kellner, P. B. Renton, A. S. Johnson, E. M. Kabuss, H. E. Stier, M. Scheer, J. Haas, A. Schlagböhmer, T. Schröder, A. Sandacz, E. Nagy, H. Peschel, H. Brück, C. Broll, H.E. Montgomery, S. Dahlgren, Kr Long, B. Pietrzyk, M. Schouten, I. G. Bird, N. Schmitz, J. Gayler, G. Coignet, J. Drees, J. Ciborowski, G. Jancso, A. de la Torre, M. Studt, C. Benchouk, F. Dengler, M. Jaffre, L. Urban, D. Blum, J. S. Chima, J. Krüger, Joshua Thompson, Ulrich Landgraf, M. Schneegans, P. Ribarics, E. Rondio, A.M. Osborne, S. Kullander, G. D'Agostini, E. Böhm, W. Flauger, S. Wheeler, H. Schiemann, Gy. Wolf, J. Nassalski, M.I. Ferrero, R. W. Clifft, T. J. Sloan, B. Pönsgen, A. Manz, Silvia Maselli, R. Gamet, F. Grard, P.J. Hayman, K. Schultze, Cristiana Peroni, Roland Windmolders, J. J. Aubert, D. Lanske, C. Pascaud, A. Arvidson, Michael Düren, M. C. Edwards, F.W. Brasse, B. Pawlik, X. De Bouard, M. Scholz, J. Beaufays, Ph. Heusse, Jane Coughlan, V. Eckardt, W. Wallucks, J. Foster, E. Gabathuler, E. Hagberg, N. Geddes, T. Ernst, K. Rith, B. Badelek, F. Montanet, S.C. Brown, A. Jacholkowska, J. Pettingale, V. Korbel, F. J. Hasert, and H. M. Braun

Subjects
Nuclear physics, Physics, High energy, Physics and Astronomy (miscellaneous), Spin states, Meson, Isospin, Nuclear Theory, Density of states, Production (computer science), Space (mathematics), Engineering (miscellaneous), Pseudoscalar meson
Abstract

Inclusive distributions of ρ0 and ω mesons have been measured in deep inelastic μ-p interactions at 280 GeV/c. A comparison of the ρ0 cross sections with other leptoproduction experiments is presented. The ω results represent the first observation of this inclusive channel in high energy leptoproduction. The ρ0 and ω yields are found to be equal as may be expected from the available density of states in isospin space. This contrasts with spin angular momentum where the vector to pseudoscalar meson ratio is suppressed relative to the available number of spin states.

Published
1986
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4. Jet production and fragmentation properties in deep inelastic muon scattering

Author

P. Payre, M. Pötsch, M. I. Ferrero, F. Janata, G. Jancso, B. Pietrzyk, E. Gabathuler, A. Sandacz, M. Scheer, T. Ernst, B. Badelek, J. Drees, Stephen Wimpenny, K. Rith, P. B. Renton, M. Whalley, C. P. Bee, A. Schlabböhmer, P. Malecki, A. de la Torre, H. Brück, V. Korbel, J. Gajewski, C. Benchouk, M. Studt, K. Long, E. Böhm, T. Schröder, F. G. Oakham, H. E. Stier, F. Montanet, C. Broll, Jc Thompson, H. Peschel, A. Jacholkowska, J. Favier, L. Urban, Ulrich Landgraf, F. W. Brasse, G. Berghoff, J. Krüger, R. Gamet, A. S. Johnson, A.M. Osborne, W.S.C. Williams, J. Pettingale, F. Combley, G. Kellner, Sven Kullander, M. Maire, J. Ftáčnik, H. Schiemann, K. Schultze, D. Lanske, H.E. Montgomery, J. Gayler, Jozsef Toth, H. Pessard, G. D'Agostini, D. Blum, M. Drobnitzki, Karl Ziemons, J. S. Chima, Uwe Pietrzyk, J. Foster, A. Edwards, S.C. Brown, M. Edwards, Michele Arneodo, S. Wheeler, P.J. Hayman, J. Nassalski, J.M. Thenard, E. Rondio, H. M. Braun, B. Pönsgen, E. M. Kabuss, T. J. Sloan, P. R. Norton, M. Jaffré, W. Flauger, F.J. Hasert, J. G. Loken, A. Krüger, Roland Windmolders, N. Geddes, Norbert Schmitz, A. Arvidson, Michael Düren, C. Peroni, J. Figiel, P. Ribarics, E. Hagberg, M. Scholz, E. Nagy, M. Schneegans, G. Eszes, J. J. Aubert, W. Wallucks, S. Dahlgren, R. W. Clifft, A. Manz, Janet Conrad, Jane Coughlan, V. Eckardt, F. Dengler, B. Pawlik, Silvia Maselli, C. Pascaud, Hans Calén, I. G. Bird, G. Coignet, J. Beaufays, Ph. Heusse, I. Derado, W. Mohr, F. Grard, Gy. Wolf, P. Grafström, X. De Bouard, Jacek Ciborowski, Geoffrey Taylor, T. Dreyer, and J. Haas

Subjects
Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Lund string model, Elementary particle, Parton, Inelastic scattering, Deep inelastic scattering, Gluon, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Parton shower, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

Results are presented from a study of deep inelastic 280 GeV muon-nucleon interactions on the transverse momenta and jet properties of the final state hadrons. The results are analysed in a way which attempts to separate the contributions of hard and soft QCD effects from those that arise from the fragmentation process. The fragmentation models with which the data are compared are the Lund string model, the independent jet model, the QCD parton shower model including soft gluon interference effects, and the firestring model. The discrimination between these models is discussed. Various methods of analysis of the data in terms of hard QCD processes are presented. From a study of the properties of the jet profiles a value of αs, to leading order, is determined using the Lund string model, namely αs=0.29±0.01 (stat.) ±0.02 (syst.), forQ2∼20 GeV2.

Published
1987
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6. Measurement of hadron azimuthal distributions in deep inelastic muon proton scattering

Author

A. S. Johnson, Stephen Wimpenny, T. Schröder, J. Gajewski, J. Foster, S. Wheeler, B. Pietrzyk, S.C. Brown, Kr Long, F. Combley, M. Whalley, M. Scheer, C. Broll, H.E. Montgomery, Joshua Thompson, A. Sandacz, J. Nassalski, B. Pönsgen, M. Maire, N. Geddes, D. Blum, M. Schneegans, M. Pötsch, W. Flauger, J. Gayler, E. Nagy, G. D'Agostini, G. Jancso, H. Pessard, V. Korbel, S. Dahlgren, J. Drees, G. Eszes, Ulrich Landgraf, V. Eckardt, J. G. Loken, F.J. Hasert, P. B. Renton, J. Beaufays, Gy. Wolf, R. W. Clifft, Janet Conrad, J. Favier, C. P. Bee, N. Pavel, Jozsef Toth, F. Grard, H. M. Braun, Ph. Heusse, J. J. Aubert, A. de la Torre, M. Studt, F.W. Brasse, P. Malecki, E. M. Kabuss, B. Pawlik, R. Gamet, X. De Bouard, Silvia Maselli, Geoffrey Taylor, E. Rondio, H. Schiemann, P. Ribarics, C. Pascaud, T. Dreyer, J. Figiel, N. Schmitz, C. Benchouk, A. Schlagböhmer, J. Krüger, Jane Coughlan, G. Kellner, K. Schultze, M.I. Ferrero, M. Jaffre, F. G. Oakham, E. Hagberg, H. E. Stier, W. Wallucks, P. Grafström, W.S.C. Williams, Michele Arneodo, D. Lanske, G. Berghoff, H. Peschel, A. W. Edwards, A.M. Osborne, S. Kullander, J. Haas, E. Böhm, J.M. Thenard, A. Manz, T. J. Sloan, I. Derado, P. R. Norton, W. Mohr, M. C. Edwards, Hans Calén, A. Jacholkowska, F. Montanet, I. G. Bird, Cristiana Peroni, G. Coignet, Roland Windmolders, J. Pettingale, A. Arvidson, Michael Düren, P.J. Hayman, M. Scholz, K. Rith, H. Brück, F. Dengler, J. S. Chima, F. Janata, P. Payre, E. Gabathuler, T. Ernst, B. Badelek, J. Ciborowski, and L. Urban

Subjects
Quark, Quantum chromodynamics, Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Scattering, Hadron, Virtual particle, Momentum, Nuclear physics, Transverse plane, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

A study of the distribution of the azimuthal angle ϕ of charged hadrons in deep inelastic μ−p scattering is presented. The dependence of the moments of this distribution on the Feynmanx variable and the momentum transverse to the virtual photon indicates that non-zero moments arise mainly from the effects of the intrinsicK T of the struck quark with >≳(0.44 GeV)2, and to a lesser extent from QCD processes. No significant variation withQ 2 orW 2 is observed.

Published
1987
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7. The Bose-Einstein correlations in deep inelastic ?p interactions at 280 GeV

Author

G. Eszes, F. Combley, M. Maire, E. Böhm, G. Kellner, H. M. Braun, B. Pietrzyk, S. Wheeler, Gy. Wolf, J. Nassalski, B. Pönsgen, J. Favier, Joshua Thompson, J. Figiel, F. G. Oakham, F.W. Brasse, V. Eckardt, M. Schneegans, F. Montanet, H. E. Stier, G. Berghoff, C. Benchouk, H. Peschel, J. G. Loken, G. D'Agostini, Stephen Wimpenny, J. Beaufays, F. J. Hasert, Ph. Heusse, F. Janata, P. Payre, J. J. Aubert, I. Derado, J. Ciborowski, L. Urban, P. Grafström, M.I. Ferrero, P.J. Hayman, X. De Bouard, Hans Calén, K. Rith, A. Manz, Silvia Maselli, T. Schröder, W. Mohi, A. S. Johnson, J. Gajewski, A. Sandacz, C. Pascaud, Geoffrey Taylor, R. Cliftt, J. Drees, F. Grard, M. Pötsch, Kr Long, D. Blum, I. G. Bird, M. Scheer, F. Dengler, Jozsef Toth, E. Rondio, J. S. Chima, G. Coignet, M. Jaffre, R. Gamet, S.C. Brown, Jane Coughlan, M. Schouten, J. Haas, C. P. Bee, Ulrich Landgraf, L. S. Osborne, E. Hagberg, G. Jancso, P. Malecki, B. Pawlik, P. B. Renton, W. Flauger, A. de la Torre, M. Studt, H. Pessard, M. C. Edwards, A. Jacholkowska, H. Schiemann, E. M. Kabuss, K. Schultze, J. Pettingale, D. Lanske, H. Brück, J. Krüger, E. Nagy, S. Dahlgren, A.M. Osborne, S. Kullander, N. Schmitz, T. J. Sloan, W. Wallucks, E. Gabathuler, J. Foster, V. Korbel, Cristiana Peroni, T. Ernst, B. Badelek, Roland Windmolders, A. Arvidson, Michael Düren, T. Dreyer, M. Sholz, A. Schlagböhmer, P. Ribarics, W.S.C. Williams, Michele Arneodo, A. W. Edwards, J.M. Thenard, M. Whalley, P. R. Norton, C. Broll, H.E. Montgomery, J. Gayler, and N. Geddes

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), Nuclear Theory, Charge (physics), Astrophysics::Cosmology and Extragalactic Astrophysics, Bose–Einstein correlations, Radius, Rest frame, Nuclear physics, Pion, Mass spectrum, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment, Engineering (miscellaneous), Parametrization, Particle Physics - Experiment
Abstract

The Bose-Einstein correlation has been observed for pions in deep inelastic μp interactions at 280 GeV. The importance of non-interference correlations in the sample of like charge pion pairs and in the sample used for reference is discussed. The pion emission region is found to be roughly spherical in the pair rest frame with a radius of 0.46–0.84 fm and the chaos factor λ is 0.60–1.08.

Published
1986
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8. Proton and antiproton production in deep inelastic muon-nucleon scattering at 280 GeV

Author

A. Manz, Jane Coughlan, M. Jaffre, V. Eckardt, E. Böhm, G. Kellner, P. B. Renton, J. Ciborowski, L. Urban, Michele Arneodo, J. Krüger, F. Janata, P. Payre, A. W. Edwards, F. Combley, M. Maire, A.M. Osborne, S. Kullander, B. Poensgen, J.M. Thenard, J. G. Loken, T. J. Sloan, J. Favier, P. R. Norton, W. Flauger, H. Pessard, F.J. Hasert, A. Jacholkowska, M. C. Edwards, J. Pettingale, S. Wheeler, P. Ribarics, J. Drees, M.I. Ferrero, J. Nassalski, C. Pascaud, G. Jansco, J. Beaufays, E. Gabathuler, C. Benchouk, E. M. Kabuss, W. Wallucks, T. Ernst, H. E. Stier, B. Badelek, A. S. Johnson, Ph. Heusse, G. Eszes, E. Rondio, Cristiana Peroni, Roland Windmolders, B. Pawlik, H. Peschel, R. Gamet, I. Derado, M. Scheer, W. Mohr, J. J. Aubert, A. Arvidson, F. Dengler, S. Maselli, Michael Düren, T. Schröder, M. Whalley, A. Schlagböhmer, J. S. Chima, H. Schiemann, S.C. Brown, M. Schouten, K. Schultze, C. Broll, D. Lanske, E. Hagberg, H.E. Montgomery, Ulrich Landgraf, Kr Long, Stephen Wimpenny, X. De Bouard, F. Grard, G. Berghoff, J. Foster, J. Gayler, A. de la Torre, D. Blum, M. Scholz, M. Studt, P.J. Hayman, K. Rith, A. Sandacz, A. Krüger, N. Geddes, V. Korbel, W.S.C. Williams, J. Figiel, F.W. Brasse, Gy. Wolf, N. Schmitz, Geoffrey Taylor, F. G. Oakham, T. Dreyer, E. Nagy, F. Montanet, J. Haas, S. Dahlgren, H. M. Braun, R. W. Clifft, J. Gajewski, B. Pietrzyk, Joshua Thompson, M. Schneegans, G. D'Agostini, Jozsef Toth, H. Brück, P. Grafström, M. Pötsch, C. P. Bee, P. Malecki, Hans Calén, I. G. Bird, and G. Coignet

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Proton, Nuclear Theory, Inelastic scattering, Deep inelastic scattering, Nuclear physics, Pair production, Antiproton, Antimatter, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, Nucleon, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

New results on proton and antiproton production in the target and current fragmentation regions of high energy muon-nucleon scattering are presented. Proton and antiproton production is investigated as a function of Feynmanx and rapidity. No significant difference is observed between production on hydrogen and deuterium targets. Correlations betweenpp,\(p\bar p\) and\(\bar p\bar p\) pairs are analysed and the results are compared with the predictions of the Lund fragmentation model.

Published
1987
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9. Theoretical investigation of pion absorption on 4He

Author

J. Favier, J.L. Ballot, and C. Lazard

Subjects
Nuclear physics, Physics, Recoil, Helium-4, Pion, Nuclear Theory, Neutron, Atomic physics, Born approximation, Nuclear Experiment, Nucleon, Absorption (electromagnetic radiation), Spectral line
Abstract

We analyse the π+ absorption on 4He nucleus in considering the Born terms corresponding to the absorption of the π+ on a pair of nucleons. Total cross-section as well as missing-mass spectrum, recoil momenta and Treiman-Yang angle spectra are estimated and are in a good agreement with experiments.

Published
1969
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