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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 104 (1991), S. 281-284 
    ISSN: 1437-1596
    Keywords: Sperm DNA ; Endonuclease digestion ; Dibenzalkonium chloride ; Sperma-DNA ; Endonucleasen-Verdau ; Dibenzalkoniumchlorid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung DNA, welche von einem an einem Tatort gefundenen Kondom gewonnen wurde, erwies sich als unverdaulich mit Restriktionsenzymen. Hierdurch wurde die Charakterisierung mit Southern Blot und Hybridisierung mit einer polymorphen Probe verhindert. Mehrere chemische Substanzen, welche bei der Herstellung und Behandlung der Kondome benutzt werden, wurden auf ihre inhibitorischen Eigenschaften gegenüber Restriktionsenzymen getestet. Insbesondere erwies sich Dibenzalkoniumchlorid als wirksam, die Enzyminhibition bei sehr niedrigen Konzentrationen zu verursachen. Die Effektivität von Maßnahmen, um die Schneidbarkeit der Proben-DNA bei Gegenwart solcher Kontaminierungen wieder herzustellen, wird diskutiert.
    Notes: Summary DNA recovered from a condom found at a crime scene appeared undigestible with restriction enzymes, preventing characterization by Southern blot and polymorphic probe hybridization. Several chemical substances used in the processing and treatment of condoms were tested for inhibitory action of restriction enzymes. In particular dibenzalkonium chloride appeared to promote enzyme inhibition at very low concentrations. The effectiveness of treatments to restore cleavage of sample DNA in the presence of such contaminants is discussed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 24.30.Cz ; 25.70−z
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Photons emitted in the28 Si+64 Ni and32 S+64 Ni reactions at 143 MeV and 156 MeV incident energy respectively, have been detected in coincidence with the ejected charged fragments. An array of 48 BaF2 γ-rays detector and 6 solid state silicon detector telescopes have been used. Photon energy spectra measured in the energy range from 2 to 20 MeV in coincidence with ejectiles coming from deep inelastic reactions, are consistent with statistical emission from the reaction products.
    Type of Medium: Electronic Resource
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