995 resultados para 158-957O
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We present experimental results on inclusive spectra and mean multiplicities of negatively charged pions produced in inelastic p+p interactions at incident projectile momenta of 20, 31, 40, 80 and 158GeV/c (√s = 6.3, 7.7,8.8, 12.3 and 17.3GeV, respectively). The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer at the CERN super proton synchrotron. Two-dimensional spectra are determined in terms of rapidity and transverse momentum. Their properties such as the width of rapidity distributions and the inverse slope parameter of transverse mass spectra are extracted and their collision energy dependences are presented. The results on inelastic p+p interactions are compared with the corresponding data on central Pb+Pb collisions measured by the NA49 experiment at the CERNSPS. The results presented in this paper are part of the NA61/SHINE ion program devoted to the study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter. They are required for interpretation of results on nucleus–nucleus and proton–nucleus collisions.
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Vorbesitzer: Abraham Merzbacher
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Vorbesitzer: Peter von Seligenstadt; Bartholomaeusstift Frankfurt am Main
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u.a.: 1848er Revolution, Mobilmachung der preussischen Armee; Diätratschläge Schopenhauers; Heimatschein; Annahme von Geschenken in der preussischen Verwaltung; Orden für Schopenhauer; Naturwissenschaft; Magd, Pudel; Alexander von Humboldt; Stricker; Geheimer Kriegsrat Stricker; Geheimer Hofrat Carl John;
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Vorbesitzer: Martinus Lugisland; Dominikanerkloster Budweis; Dominikanerkloster Frankfurt am Main
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Deutsche Latern, Kladderadatsch
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127 Briefe zwischen Leo Löwenthal und Max Horkheimer; 2 Briefe zwischen Theodor W. Adorno und Leo Löwenthal, April 1942; 1 Brief von M. David an Leo Löwenthal, 17.02.1942; 1 Brief von Franz Neumann an Max Horkheimer;
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107 Briefe zwischen Max Horkheimer und Leo Löwenthal; 10 Briefe von Max Horkheimer an Samuel H. Flowerman (Sandy); 1 Brief von Samuel H. Flowerman an Frederick Pollock, 26.03.1946; 1 Brief von Paul F. Lazarsfeld an Max Horkheimer, 10.03.1946; 1 Brief von Frederick Pollock an Robert K. Merton, 17.04.1946; 1 Brief von Samuel H. Flowerman an Frederick Pollock, 26.03.1946; 1 Brief von Robert K. Merton an Arthur W. MacMahon, 12.03.1946; 1 Brief von E. Franklin Frazier an Leo Löwenthal, 27.03.1946; 2 Briefe zwischen Margaret Nicholson und Max Horkheimer, März 1946;
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Vorbesitzer: Jacobus Ardenius
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Hydrothermal circulation at oceanic spreading ridges causes sea water to penetrate to depths of 2 to 3 km in the oceanic crust where it is heated to ~400 °C before venting at spectacular 'black smokers'. These hydrothermal systems exert a strong influence on ocean chemistry (Edmond et al., 1979, doi:10.1016/0012-821X(79)90061-X), yet their structure, longevity and magnitude remain largely unresolved (Elderfield and Schultz., 1996, doi:10.1146/annurev.earth.24.1.191). The active Transatlantic Geotraverse (TAG) deposit, at 26° N on the Mid-Atlantic Ridge, is one of the largest, oldest and most intensively studied of the massive sulphide mounds that accumulate beneath black-smoker fields. Here we report ages of sulphides and anhydrites from the recently drilled (Humphris et al., 1995, doi:10.1038/377713a0) TAG substrate structures -determined from 234U-230Th systematics analysed by thermal ionization mass spectrometry. The new precise ages combined with existing data (Lalou et al., 1993, doi:10.1029/92JB01898; 1998, doi:10.2973/odp.proc.sr.158.214.1998) show that the oldest material (11,000 to 37,000 years old) forms a layer across the centre of the deposit with younger material (2,300-7,800 years old) both above and below. This stratigraphy confirms that much of the sulphide and anhydrite are precipitated within the mound by mixing of entrained sea water with hydrothermal fluid (James and Elderfield, 1996, doi:10.1130/0091-7613(1996)024<1147:COOFFA>2.3.CO;2). The age distribution is consistent with episodic activity of the hydrothermal system recurring at intervals of up to 2,000 years.
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Fil: Sánchez, Brenda. Universidad Nacional de Cuyo. Facultad de Filosofía y Letras. Instituto Literaturas Modernas
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Fil: Alberti, Miguel.