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  • Springer  (5)
  • Copernicus
  • American Meteorological Society
  • 2015-2019
  • 2000-2004
  • 1975-1979  (5)
  • 1976  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Isolation and some properties of a mammalian ribosomal DNA (1976)
    Springer
    Chromosoma 58 (1976), S. 41-50 
    Details
    ISSN: 1432-0886
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The DNA coding for 28 S and 18 S ribosomal RNA, including the spacer regions, has been isolated from calf (Bos taurus) thymus gland. The method used included shearing of the total DNA to a highly homogeneous size population, selective heat denaturation and S 1 nuclease treatment to remove single stranded DNA. Repeated centrifugation on density gradients yields a 140-fold purified rDNA fraction with a GC content of 61.2%. Eco RI nuclease cleaves this DNA into two fragments of 16.4 and 4.9×106 daltons. Hybridization of these fragments with 28 S and 18 S rRNA shows that the 28 S coding sequence is located mostly on the 4.9×106 dalton fragment, while both the 16.4 and 4.9×106 dalton fragments contain the 18 S sequence. The data indicate that the ribosomal RNA gene has a repeat unit of 21.3×106 daltons which includes a nontranscribed spacer of about 12.5×106 daltons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00293439
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A dynamical model for gravitation (1976)
    Springer
    Foundations of physics 6 (1976), S. 143-155 
    Details
    ISSN: 1572-9516
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A gravitational model is proposed that relates the terrestrially measured value of the gravitational constantG directly to the density and angular velocity of the galaxy. The model indicates a constant scalar value forG within most regions of our galaxy, but predicts thatG will be different in other galaxies and zero in intergalactic space. The model offers explanations for galactic cluster stability, discrepancies in terrestrial measurements ofG, and atomic particle stability. The model also provides a causal relationship between strong, electromagnetic, weak, and gravitational interactions. The two postulates required for the proposed model reduce to two assumptions made in GRT in regions whereG is constant; these postulates are consistent with the existence of a 2.7 K blackbody background radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00708956
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The residual permanent magnetic dipole moment of the moon (1976)
    Springer
    Earth, moon and planets 15 (1976), S. 67-81 
    Details
    ISSN: 1573-0794
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The residual dipole moment of the outer spherical shell of the Moon, magnetized in the field of an internal dipole is calculated for the case when the permeability of the shell differs from unity. It is shown that, using an average value of surface magnetization from returned lunar crystalline rock samples and a global figure for the lunar permeability of 1.012, that a residual moment of the order of 1015 to 1016 Am2 is expected. This value is some two or three orders of magnitude lower than the moment for a shell magnetized in an external uniform field and is of the same order as the upper limit of the residual moment detected by Russellet al. (1974). At present the magnetic data and the thermal state of the Moon are not known with sufficient accuracy to distinguish between a crust magnetized in an internal dipole field of constant polarity and a crust magnetized in the dipole field of a self-reversing core dynamo. Refined measurements of the relevant parameters together with the theory presented in this paper could enable these two possibilities to be distinguished.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00562472
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  • 4
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    The residual permanent magnetic dipole moment of the moon (1976)
    Springer
    Details
    Publication Date: 1976-01-01
    Print ISSN: 0027-0903
    Topics: Geosciences , Physics
    Published by Springer
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  • 5
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    Isolation and some properties of a mammalian ribosomal DNA (1976)
    Springer
    Details
    Publication Date: 1976-01-01
    Print ISSN: 0009-5915
    Electronic ISSN: 1432-0886
    Topics: Biology , Medicine
    Published by Springer
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