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  • 1
    Electronic Resource
    Electronic Resource
    The competition between fusion-fission and deeply inelastic reactions in the medium mass systems (1996)
    Springer
    The European physical journal 353 (1996), S. 387-396 
    Details
    ISSN: 1434-601X
    Keywords: 25.70.−z ; 25.70.Lm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The competition between fusion-fission and deeply inelastic reactions in the Cl + Ni system has been studied by investigating the exit channelQ-value dependence of theZ-distributions of fission-like fragments. TheZ-, kinetic energy- and angular distributions of the fission-like fragments produced in the37Cl +64Ni system atE lab=170, 186 MeV and in the28Si +74Ge system atE lab=176 MeV have been measured by counter telescopes. TheZ-distribution of the37Cl +64Ni system was found to be essentially the same as that of the35Cl +62Ni system at the same bombarding energy. It is shown that this result can not be explained by the statistical fusion fission model but is consistent with a deeply inelastic model. A systematic study of the fission-like phenomenon in this mass region indicates that the maximum angular momenta for fusion reactions as well as the minimum angular momenta for DIC can be reproduced by the Bass model in the sliding limit (f=1.0) while the maximum angular momenta for fully energy-damped deeply inelastic reactions are governed by the strong interaction radius as predicted by the successive critical distance fusion model. The significance of these results are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01285150
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Apoptosis of guinea pig cochlear hair cells following chronic aminoglycoside treatment (1998)
    Springer
    European archives of oto-rhino-laryngology and head & neck 255 (1998), S. 127-131 
    Details
    ISSN: 1434-4726
    Keywords: Key words Cochlea ; Aminoglycoside toxicity ; Hair cell apoptosis ; Nick-end labeling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Although aminoglycosides have been investigated for their cochleotoxicity, it has still not been determined whether apoptosis or necrosis results in cochlear hair cell death following aminoglycoside treatment. To study possible mechanisms of cell death, we used in situ DNA break-labeling to examine guinea pig cochleae affected by kanamycin ototoxicity. Chronic kanamycin treatment induced DNA fragmentation that was detectable in both outer and inner hair cells, suggesting the occurrence of apoptosis. These findings suggest that apoptosis achieves deletion of affected hair cells without disrupting tissue architecture in the organ of Corti.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004050050027
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    Paper (German National Licenses)
    Fulltext
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