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  • 1980-1984  (2)
  • 1975-1979
  • 1982  (2)
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  • 1980-1984  (2)
  • 1975-1979
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Medical microbiology and immunology 170 (1982), S. 145-153 
    ISSN: 1432-1831
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion With myxoviruses we are now beginning to understand the complex biological phenomenon of pathogenicity at the molecular level. Proteolytic activation of the viral glycoproteins proved to be a very important determinant for pathogenicity. Variations in pathogenicity are the result of structural variations of the glycoproteins. The available evidence indicates that these structural variations are confined to the cleavage site, i.e., to a small but functionally important part of the molecule.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Double differential cross sectionsd 2 σ/dΩdE were measured for high energetic electrons emitted in heavy ion collisions. Electrons were detected in the energy range of 60 keV-500 keV for various target projectile combinations 66≦Z u =Z t +Z p ≦145 and projectile velocities between 7 % and 10 % of the speed of light. Clear evidence was found that these electrons stem from the united atom formed during the collision. Slope and height of the spectra are discussed with respect to the momentum distribution of strongly bound states (i.e. theL-shell) at momenta far above the mean value. In addition for the systems S, Ni, Br→Pb electrons were detected in coincidence withK x-rays of Pb. By this method the contribution of theK-shell of the combined system to the total spectrum could be separated. Binding energies of theK-shell were estimated by a slope comparison between the coincident and single spectrum. The resulting values are close to the united atom limit.
    Type of Medium: Electronic Resource
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