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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 263 (1985), S. 328-334 
    ISSN: 1435-1536
    Keywords: Melt rheology ; network transition ; molecular weight distribution ; Doi-Edwards theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The molecular theory proposed by Doi and Edwards is applied to the determination of the rheological behaviour of a technical polystyrene with medium molecular weight and rather broad molecular weight distribution. The molecular parameters of the polystyrene were measured by means of the GPC method. The rheological properties of the sample were investigated by means of a dynamic viscometer. It is shown that a good description of the linear viscoelastic properties of the melt of the polystyrene can be given using the Doi-Edwards theory combined with a mixing rule of simple superposition of the moduli according to the number fractions of the molecular weights.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Der Chirurg 70 (1999), S. 608-610 
    ISSN: 1433-0385
    Keywords: Key words: Finger tourniquet ; Ischemia ; Free flap ; Toe reconstruction. ; Schlüsselwörter: Blutsperre ; Ischämie ; freier Lappen ; Zehrekonstruktion.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Es wird von einer jungen Patientin berichtet, die sich einer Keilexcision an der Großzehe unterzog. Postoperativ wurde vergessen, die Blutsperre zu entfernen. Auf Grund einer zweitägigen Ischämie kam es zur Nekrose eines Großteils der Weichteile. Nach langer konservativer Therapie wurden auch Knochen und Knorpelanteile nekrotisch. Die Arbeit soll die Notwendigkeit eines frühzeitigen chirurgischen Vorgehens hervorheben sowie die Behandlung dieser seltenen Komplikation von der Erstdiagnose bis zur Rekonstruktion darstellen.
    Notes: Summary. We present a necrosis of the big toe in a 20-year-old woman with an ingrowing toenail after wedge-shaped excision in the big toe. The reason for the necrosis was a tourniquet that was left in place after the operation. The ischemia, which lasted for 2 days, resulted in subtotal necrosis of the big toe. Six weeks after the operation the patient underwent microsurgical reconstruction. This is a report on the treatment of this complication from the beginning. Early surgical intervention is advocated.
    Type of Medium: Electronic Resource
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