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  • 1980-1984  (3)
  • 1940-1944  (1)
Datenquelle
Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Dielectric Properties of Plasticized Polyvinyl Chloride (1941)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 63 (1941), S. 361-369 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja01847a010
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Plasma cholinesterase and trophoblastic disease (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 38 (1983), S. 0 
    Details
    ISSN: 1365-2044
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: A case of prolonged action of suxamethonium in a patient with gestational trophoblastic disease is reported. Postoperatively the patient was found to have markedly reduced plasma cholinesterase activity (363 IU/litre) with a normal cholinesterase phenotype. Consequently plasma cholinesterase activity and phenotype were measured in six other patients with the condition and these results compared with those of 22 patients with normal first trimester pregnancies undergoing therapeutic abortion. Plasma cholinesterase phenotype was normal in all patients studied. The activity was significantly decreased (p 〈 0.05) from the normal range (620–1370 lU/litre) in all patients with trophoblastic disease. In the 22 patients with normal pregnancies, 14 had activity values in the abnormal range (〈 620 IU/litre) while the mean cholinesterase activity of the group as a whole was significantly decreased (561.8 IU/litre, p 〈 0.05) below the normal range. These results confirm the presence of a decrease in plasma cholinesterase activity in early pregnancy and provide new evidence for a decrease in activity in a pseudopregnancy state.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1365-2044.1983.tb12482.x
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  • 3
    Digitale Medien
    Digitale Medien
    Supply of organic matter to the sediment in the northern North Sea during a spring phytoplankton bloom (1984)
    Springer
    Marine biology 78 (1984), S. 315-324 
    Details
    ISSN: 1432-1793
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Strings of moored sediment traps were deployed in a 150 m water column over a period covering the growth and collapse of the spring bloom (4 April–3 June 1976) in an area of the northern North Sea. The efficiency of collection of material in the moored traps was compared to collections in free-drifting traps in the same area of deployment. The ways in which the data from the trap collections may be interpreted was considered at some length and a best estimate of the flux of organic carbon and nitrogen to the sediment was made. For the period prior to the spring bloom (4–23 April) this flux was 50 mg C m−2 d−1 (about 20% of primary production). During the bloom (24 April–19 May) it was about 185 mg C m−2 d−1 (35% of production) and during early summer (20 May–3 June) it was 115 mg C m−2 d−1, about 25% of the overlying production. The organic carbon and nitrogen content of the material collected was measured and the material was examined microscopically. There was evidence of a large settlement of diatoms immediately after the spring bloom which was reflected in changes in the C:N and C:chlorophyll ratios of the material collected. This change in biochemical composition of the material may affect its nutritional quality and have a stimulatory effect on the growth and reproduction of the animals living in the sediment.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00393017
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  • 4
    Digitale Medien
    Digitale Medien
    Torsional vibrational properties of rubber cylinders (1982)
    Springer
    Rheologica acta 21 (1982), S. 416-419 
    Details
    ISSN: 1435-1528
    Schlagwort(e): Torsional vibration ; rubber cylinder ; Maxwell model
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Physik
    Notizen: Abstract This paper describes an experimental and theoretical study of the torsional vibrational properties of rubber cylinders. Experiments were carried out on long cylinders using a modified Weissenberg Rheogoniometer. A comparison is made with a theory based on a modified generalized Maxwell model.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01534306
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