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  • 1990-1994  (2)
  • 1925-1929
  • 23.20.−g  (1)
  • Histological changes  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The heterogeneity of solid human xenotransplant tumours (1991)
    Springer
    Journal of cancer research and clinical oncology 117 (1991), S. 568-574 
    Details
    ISSN: 1432-1335
    Keywords: Heterotransplantation ; Nude mice ; Osteosarcoma ; Squamous carcinoma ; Histological changes ; Biological behaviour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fifteen xenograft tumour lines (4 osteosarcomas and 11 squamous carcinomas) were established on nude mice in numerous passages. Over a period of 4 years, samples were taken and studied systematically in more than 4000 histological slides. Of the tumour lines, 12 (4 osteosarcomas and 8 squamous carcinomas) showed remarkable dedifferentiation, but also redifferentiation towards a higher grade. There was a correlation between the rate of tumour takes in mice and poor prognosis in patients, but none between tumour doubling time and the phases of the cell cycle. Altogether, the results showed a great heterogeneity of human xenotransplants in terms of biological behaviour and morphological changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01613290
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Energy of the 5− isomer and (πg 9/2⊗vg 9/2) states in82Rb (1991)
    Springer
    The European physical journal 339 (1991), S. 425-426 
    Details
    ISSN: 1434-601X
    Keywords: 23.20.−g ; 27.50.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Excited states in the doubly-odd nucleus82Rb have been investigated via the reactions79Br(α,n) and78Se(7Li,3n) using in-beamγ-ray spectroscopy. The level energy of the longlived 5− isomer has been determined to 68.3 keV which is below the energy of the 2− state found at 88.9 keV with a lifetime ofΤ=2.4(2) ns. A sequence of positive-parity states beginning with a 6+ level at 191.3 keV (Τ=20(3) ns) and extending to a (10+) level has been interpreted to contain the two-particle configuration (πg 9/2⊗Ν 9/2) and collective excitations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01560649
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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