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  • Autoradiography  (1)
  • dielectric relaxation in PET and ethylene isophthalate terephthalate copolyester  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The origin of the non-specialized epithelial cells cultured from human parotid gland (1981)
    Springer
    European archives of oto-rhino-laryngology and head & neck 230 (1981), S. 49-55 
    Details
    ISSN: 1434-4726
    Keywords: Tissue culture ; Human parotid gland ; Parotin ; Autoradiography ; Isoproterenol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We investigated the origin of the non-specialized cells proliferated in primary expiant culture of human parotid gland. The predominant cells in surface layer were morphologically epithelial origin with desmosomes and intercellular digitations. The cultured cells did not show any specific affinity to parotin isolated from bovine parotid gland, which seemed to be one of the marker for duct cell. However, it was demonstrated autoradiographycally that DNA synthesis in the cells was rapidly induced by isoproterenol, a potent stimulator of acinar cell. From these results, the non-specialized epithelial cells in expiant culture seemed to be derived from acinar cell in human parotid gland.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665379
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Study of the dielectric β-relaxation in poly(ethylene terephthalate) and ethylene isophthalate terephthalate copolyesters (1992)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 30 (1992), S. 701-706 
    Details
    ISSN: 0887-6266
    Keywords: dielectric relaxation in PET and ethylene isophthalate terephthalate copolyester ; copolymers, ethylene isophthalate terephthalte, dielectric relaxation in ; poly(ethylene terphthalate) and related copolyesters, dielectric relaxation in ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The dielectric β-relaxation in poly(ethylene terephthalate) and ethylene isophthalate terephthalate copolyesters with various ethylene isophthalate contents was investigated over a wide range of frequencies. Isothermal spectra and normalized plots show that the dielectric β-relaxation is characterized by the molecular structure between the aromatic rings. The equilibrium polarizability of the motional segment, which was estimated from the dielectric increment obtained by the best fit of the Havriliak-Negami equation to the Cole-Cole plot, indicates that torsional vibrations of the main chain are correlated over a length corresponding to one monomer.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1992.090300707
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    Paper (German National Licenses)
    Fulltext
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