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  • 1
    Electronic Resource
    Electronic Resource
    Phosphohexose isomerase in hypernephroma (1988)
    Springer
    Urological research 16 (1988), S. 345-349 
    Details
    ISSN: 1434-0879
    Keywords: Phosphohexose Isomerase ; Hypernephroma ; Serum and Tissue Activities ; Isozyme Pattern
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In hypernephroma an overall diagnostic sensitivity of 72% and a specificity of 87% was found for the serum tumor marker phosphohexose isomerase (PHI). Both in early stage disease and in well differentiated tumors a sensitivity of about 60% was reached. In contrast the sensitivity of three other glycolytic enzymes tested was found to be less than 20%. Since the cancer induced elevation of PHI activity in the tumor was found to be comparable to those of the other test enzymes, elevated PHI serum activities cannot be attributed to overproportional PHI synthesis and unspecific cell-lysis. In 6 of 10 cases studied differences in the PHI isozyme pattern between the tumor and the normal tissue were found suggesting the occurence of cancer associated structural alterations of PHI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00256040
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Breakdown field strength of unitary attaching gases and gas mixtures (1979)
    Springer
    Applied physics 18 (1979), S. 321-333 
    Details
    ISSN: 1432-0630
    Keywords: 51.50.+v ; 52.20F s ; 52.80
    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 model is presented, which yields the breakdown field strength for space-chargefree configurations and the corona onset voltage for conditions with space charges in unitary, attaching gases and gas mixtures. It is entirely based on a physical description. Therefore, it does not require form parameters to be adjusted by comparison with experiments. It only necessitates the knwoledge of a set of any three material data out of a list of eight material properties which are available for a large number of gases. The model is applied to SF6 as well as to binary and multiple mixtures of N2, CO2, SF6, C4F6,c-C4F8, C3F8, CBrClF2. The results generally agree to within 10% with experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00899684
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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