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  • 1990-1994
  • 1980-1984  (4)
  • 1980  (4)
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Materialart
Erscheinungszeitraum
  • 1990-1994
  • 1980-1984  (4)
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  • 1
    Digitale Medien
    Digitale Medien
    REPRODUCIBILITY OF BIPARIETAL DIAMETER MEASUREMENTS OBTAINED WITH A REAL-TIME SCANNER (1980)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 87 (1980), S. 0 
    Details
    ISSN: 1471-0528
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: In 80 patients, multiple measurements of the fetal biparietal diameter were made during one examination using a real-time scanner equipped with a coded cephalometer. From the sets of data, the means and standard deviations for the group of 80 patients were calculated. In 80 per cent of cases, the individual standard deviations of the results were less than or equal to the estimated standard deviation of the group as a whole. The variability of measurement related to biparietal diameter was least in the range 59 to 83 mm. Comparison of the results obtained with the coded device and others obtained ‘blind’ does not reveal any significant advantage for the coded device.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1471-0528.1980.tb04580.x
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  • 2
    Digitale Medien
    Digitale Medien
    Congenital deficiency in plasma kallikrein and kininogens in the brown Norway rat (1980)
    Springer
    Cellular and molecular life sciences 36 (1980), S. 586-587 
    Details
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The kallikrein-kininogens-kinins system has been investigated in the brown Norway rat. In this breed the stores of kininogens in the plasma are reduced and the plasma kallikrein-like activity appears to be absent both in vivo and in vitro.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01965817
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  • 3
    Digitale Medien
    Digitale Medien
    Book review (1980)
    Springer
    Periodica mathematica Hungarica 11 (1980), S. 87-87 
    Details
    ISSN: 1588-2829
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02019987
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  • 4
    Digitale Medien
    Digitale Medien
    Relation of mantle conductivity to physical conditions in the asthenosphere (1980)
    Springer
    Surveys in geophysics 4 (1980), S. 43-55 
    Details
    ISSN: 1573-0956
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Abstract Magnetotelluric soundings show that the conductivity increases in the asthenosphere. The depth of this conductivity zone decreases with an increase of the surface heat flow, i.e. in such cases the lithospheric plate is thinner. The depth of the velocity decrease of seismic shear wave (S waves) shows the same connection with the surface heat flow. The solidus of a mixed-volatile medium intersects the temperature curves belonging to different surface heat flows at depths where the conductivity increase and the velocity decrease appear. These connections point to partial melting in the asthenosphere, which can decrease the viscosity too, and help the movement of the lithospheric plates according to the ideas of global tectonics. The melt fraction of peridotite and pyrolite determined by Shankland and Waff from the effective conductivity of the asthenosphere is about 3–4% at 30 kbar and ato *=0.1 S m−1. In the upper mantle of old shields it is likely that there is no well-developed asthenosphere due to the low temperature. Over these so-called ‘viscous anchors’ the lithospheric plates do not move. It is supposed that the conductivity increases observed below crystalline shields at a depth of about 300 km indicate the phase transition of rocks. Thus in these areas the surface of the phase transition can be at a higher position than in the younger tectonic units.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01452957
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