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  • 1985-1989  (2)
  • 1975-1979  (1)
  • 1945-1949
  • 81.10  (1)
  • Astroblastoma  (1)
  • Microcomplement fixation  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The astroblastoma and its possible cytogenic relationship to the tanycyte (1989)
    Springer
    Acta neuropathologica 78 (1989), S. 472-483 
    Details
    ISSN: 1432-0533
    Keywords: Astroblastoma ; Electron microscopy ; Immunohistochemistry ; Organ culture ; Tanycytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two examples of cerebral astroblastoma have been studied by electron microscopy and immunohistochemistry, one of them having been maintained in vitro in an organ-culture matrix system for 8 months and the explants studied by light and electron microscopy at different time intervals. The fine structural characteristics were those of a glial cell type with features intermediary between those of astrocytes and ependymocytes. They recapitulated the structure of the tanycyte, a glial precursor cell which is normally found scattered along the ependymal lining of the embryonal and neonatal mammalian brain, but is distinct from epithelial ependymocytes. The possible origin of some astroblastomas from such a cell would account for a number of characteristics in this enigmatic type of glioma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00687708
    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
    Morphological stability in epitaxy of semiconductors — application to optoelectronic monolithically integrated structures (1986)
    Springer
    Applied physics 41 (1986), S. 243-252 
    Details
    ISSN: 1432-0630
    Keywords: 68.55 ; 81.10 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A simple selection rule for epitaxial growth techniques, which is based on morphological stability of the substrate surface is proposed. According to this rule a certain growth technique should be used for preparing a specific device structure of a three-dimensional monolithically integrated optical or electronic circuit. The formulae for morphological stability functions for LPE, MO, VPE, and MBE growth techniques are given. Calculations performed for the GaAs/Al x Ga1−x As material system by using the linear morphological stability theory of Mullins and Sekerka suggest that from the point of view of morphological stability the most suitable growth technique for fabrication of three-dimensional monolithically integrated optical and electronic device structures is the MBE technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616846
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Brain-associated cell surface antigens on neuroepithelial cells in a transplantable mouse teratoma (1977)
    Springer
    Acta neuropathologica 39 (1977), S. 281-287 
    Details
    ISSN: 1432-0533
    Keywords: Neuroepithelial differentiation ; Microcomplement fixation ; Indirect immunofluorescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Mouse neonatal brain cell fractions enriched for surface membranes were used as immunogens to produce a heterologous immune serum. Following absorption to remove non-neural anti-mouse activity, this serum demonstrated by microcomplement fixation an anti-brain activity that was completely removed by absorption with neonatal mouse brain or with solid tumors of the mouse transplantable teratoma OTT-6050. Indirect immunofluorescence applied to living monolayer cultures of differentiating teratoma embryoid bodies showed the absorbed serum's reaction with neural cell surfaces only. In material studied with frozen sections, the absorbed serum recognized antigenic sites in all examined areas of both neonatal and adult mouse brain, and only within neuroepithelial cell populations of solid transplants of the teratoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00691708
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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