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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 90 (1983), S. 0 
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. During the period from 1 October 1979 to 31 January 1981, 548 estimations of maturity were made on 523 infants at the Department of Medical Obstetrics of the Neukolln Hospital in Berlin, using the motor nerve conduction velocity (NCV) of the ulnar nerve combined with the Farr system. The mean value of the NCV increases from 13.0 m/s in the 33rd week of gestation to 30.4 m/s in the 44th week. Over the whole range the NCV showed a highly significant correlation (r=0.946, P〈0.00001) with the gestational age of the infant, whereas the Farr system deviated strongly in a false positive direction up to the 38th week of gestation. The measurement of the NCV of the ulnar nerve is a simple and very precise postpartum estimation of the gestational age.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 444 (1993), S. C9-C11 
    ISSN: 0022-328X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inorganic and organometallic polymers and materials 5 (1995), S. 7-30 
    ISSN: 1572-8870
    Keywords: Polyoxyhexakis(dimethylsilylene) ; dimethylsiloxane ; copolymer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The synthesis of polyoxyhexakis(dimethylsilylene).1. by the hydrolytic polycondensation of α,ω-dichlorohexakisdimethylsilylene,2. and by cationic ring-opening polymerization of dodecamethyloxahexasilacycloheptane.6Dj, initiated with a protic acid is reported. The possibility of synthesis of alternative copolymers composed of oxyhexakis(dimethylsilylene) units and dimethylsiloxane or oligodimethylsiloxane units were also explored. Polymers are characterized by NMR spectroscopy. Their thermal behavior is discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 227 (1979), S. 327-336 
    ISSN: 1432-0711
    Keywords: Schwangerschaftsspezifisches β1-Glykoprotein (SP 1) ; Radioimmunoassay ; Humanes Plazenta-Laktogen (HPL) ; Risikoschwangerschaften ; Pregnancy-specific β1-glycoprotein (SP 1) ; Radioimmunoassay ; Human placental lactogen (HPL) ; High risk pregnancies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Serum concentrations of the pregnancy-specific β1-glycoprotein (SP 1) and human placental lactogen (HPL) were measured by radioimmunoassay in 372 blood samples obtained from 40 women in the second half of a normal singleton pregnancy. The mean level of SP 1 steadily increased from 40 μg/ml in the 22nd week of pregnancy to 168 μg/ml in the 36th week of gestation and thereafter reached a plateau. The half-life of SP 1 during the first week after delivery was about 39 h. The clinical value of SP 1 in comparison to HPL estimations was assessed in a prospective study of a few high risk pregnancies. There were no significant differences between serum SP 1 and HPL levels in pregnancies complicated by preeclampsia with or without intrauterine growth retardation and in twin pregnancies. Serum HPL and SP 1 levels were equally effective in predicting placental insufficiency with fetal growth retardation.
    Notes: Zusammenfassung Zur Bestimmung des schwangerschaftsspezifischen β1-Glykoproteins (SP 1) wurde ein Radioimmunoassay entwickelt. Die Normalbereiche für SP 1 und das humane Plazenta-Laktogen (HPL) in der zweiten Schwangerschaftshälfte bestimmten wir aus 372 Serumproben von 40 ungestörten Schwangerschaftsverläufen. Der Median von SP 1 stieg von 40 μg/ml in der 22. SSW auf 168 μg/ml in der 36. SSW kontinuierlich an und blieb danach bis zum Schwangerschaftsende nahezu unverändert. Aufgrund der Eliminationsrate von SP 1 in den ersten 6 Tagen post partum konnte die Halbwertszeit mit etwa 39 h berechnet werden. In einer prospektiven Studie wurde aus einem Kollektiv von Risikoschwangerschaften die Aussagekraft von SP 1 im Vergleich zu HPL untersucht. In Übereinstimmung mit HPL lagen fast alle SP 1-Werte bei Zwillingsschwangerschaften über dem Normbereich. In Fällen von leichter bis mittelschwerer EPH-Gestose mit normaler Kindsentwicklung befanden sich beide Parameter im Normbereich. Bei leichter fetaler Mangelentwicklung bewegten sich die SP 1-Serumspiegel unterhalb des Medians (10.–50. Perzentile). Hingegen verliefen die Kurven für SP 1 in Fällen von schwerer fetaler Mangelentwicklung weit unterhalb der 10. Perzentile des Normalbereichs. Ähnlich verhielt sich HPL. SP 1 kann ebenso wie HPL zur biochemischen Überwachung der Schwangerschaft herangezogen werden. Unsere Untersuchungen ergaben, daß SP 1 keine entscheidenden, über HPL hinausgehenden Informationen erbrachte. Die Einführung von SP 1 als zusätzlichen Parameter zur routinemäßigen Überwachung von Risikoschwangerschaften in der 2. Schwangerschaftshälfte ist daher derzeit nicht notwendig.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Vacuum 17 (1967), S. 333 
    ISSN: 0042-207X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Optics and Laser Technology 19 (1987), S. 131-140 
    ISSN: 0030-3992
    Keywords: birefringent retarders ; fringes ; interference ; interferometry
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Optics and Laser Technology 20 (1988), S. 81-88 
    ISSN: 0030-3992
    Keywords: birefringent retarders ; crystal oscillators ; fringes ; interferometry
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 245 (1989), S. 1114-1115 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Das Geburten-Dokumentations-System wurde zur Erleichterung der Dokumentation und zur Qualitätskontrolle in der Geburtshilfe entwikkelt. Ein Personal-Computer dient zur Erfassung der wichtigsten Daten des Schwangerschafts-, Geburts-, und Wochenbettverlaufes. Dadurch wird die konventionelle Geburtenbuchführung ersetzt und die automatische Arztbriefschreibung ermöglicht. Mit Statistikprogrammen steht für den klinischen Routinebetrieb ein Informationssystem zur Verfügung, das auch die Erstellung der gesetzlich geforderten geburtshilflichen Statistik und eine klinikbezogene Qualitätskontrolle erlaubt.
    Notes: Summary A simple on-line data collection system was developed for facilitating documentation and quality assessment in perinatal medicine. A microcomputer is used for acquisition of the most important obstetrical data. The system substitutes the handwritten birth notification form and permits automatic medical reporting. In addition an information system for day-to-day clinical routine is provided. Special programmes allow the complication of statistical analysis as requested by the government as well as for actually internal quality assessment.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 254 (1993), S. 1161-1162 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 46 (1996), S. 1061-1079 
    ISSN: 1572-8943
    Keywords: atomic force microscopy ; composites ; dispersion ; phase structure ; polymerizationin situ ; polypropylene ; polystyrene ; viscoelastic properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The phase structure and dynamic mechanical properties of three polypropylene/polystyrene (PP/PS) systems of similar composition but various dispersion of the minor PS component have been examined. Two different PP/PS systems were prepared by polymerization of styrene (ST) molecularly dispersed in PP matrices (with the same initial structure) under the conditions leading to a linear or crosslinked PS component. The third PP/PS system has been prepared blending the homopolymers in the molten state. Studies of materials containingin situ polymerized PS revealed nanoscale phase separation of PS (atomic force microscopy) and pointed to the presence of physical entanglements between PS and non-crystalline phase of PP (DSC, dynamic mechanical analysis). The PS component in material prepared by melt mixing appeared to be completely phase-separated into micron-sized domains. Dynamic mechanical analysis revealed also the dependence of viscoelastic behavior of the PP/PS systems on dispersion of the PS inclusions and on the nature of the interface.
    Type of Medium: Electronic Resource
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