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  • 1980-1984  (2)
  • 1970-1974  (5)
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Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Tautomerism of nucleic acid bases. Erratum (1973)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 3408-3408 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00791a069
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    On the libration of 9,10-anthraquinone at five temperatures (1974)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 30 (1974), S. 768-771 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Potential energy profiles corresponding to libration of 9,10-anthraquinone about its molecular axes were constructed for the five structures derived from data which were collected at - 170, - 112, -72, - 12.5 and 20.5°C [Lonsdale, Milledge & El Sayed (1966). Acta Cryst. 20, 1-13]. These profiles were represented by fourth-degree least-squares polynomials, whereafter r.m.s. libration amplitudes and rigid rotator frequencies of 9,10-anthraquinone were evaluated in the quadratic approximation. The temperature dependence of the calculated quantities is in most cases close to that of the observed ones thus reproducing, by comparison with observed Raman frequencies, the pseudoharmonic behaviour of 9,10-anthraquinone. Calculated r.m.s. libration amplitudes are only qualitatively comparable to the experimental ones and appear to be somewhat too low. The present representation of energy profiles makes it possible to estimate conveniently the contribution of anharmonicity to the profile shape.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739474001859
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The crystal structure of pyridinium dichloroiodide (1973)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 29 (1973), S. 2967-2968 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740873007855
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Linkage of dwarf with obese in the mouse (1970)
    Springer
    Genetica 41 (1970), S. 57-60 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The gene for Snell's dwarfism in mice is located in linkage group XI at a distance of about 33 map units from theobese locus which is linked towhite microphtalmia. The order is:dw-ob-mi wh.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00958893
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Some characteristics of the XO mouse (Mus musculus L.) I. Vitality: Growth and metabolism (1981)
    Springer
    Genetica 55 (1981), S. 179-185 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The growth rate of XO mice during the first five weeks of life was shown to be significantly lower (ca. 15%) than the growth rate of normal XX mice. A marker gene Tabby was introduced in order to recognize hemizygous XO females. The presence or absence of this gene had a significant influence on growth rates. XO females could only be compared to XX females in an indirect way. The differences found could not be attributed to maternal influence or to the influence of litter size. Body temperature and thyroid activity were found to be lower in XO mice than in normal females. It is suggested that the lower growth rate characteristic of the XO mice is a consequence of hypothyroidism and a lower basal metabolic rate. The results show that phenotypically XO mice are not entirely normal and at least two normal X's are necessary for complete development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00127199
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Some characteristics of the XO mouse (Mus musculus L.) II. Reproduction: fertility and gametic segregation (1981)
    Springer
    Genetica 57 (1981), S. 3-11 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A preliminary investigation of reproductive capacity in XO mice showed that they produced smaller litters than normal litter mates. More time elapsed between successive litters when kept in the presence of a male except during pregnancy and weaning. This lower level of reproduction is manifest during the whole reproductive period. Also reproductive capacity in XO mice reaches its maximum and minimum (end of reproductive period) earlier than in normals. Further study also demonstrated an underdevelopment of the ovaries-the whole ovary, as well as the numbers of maturing and mature follicles, are smaller in XO mice than in controls. Since these differences can be corrected by unilateral ovariectomy, they appear to be under control of extra-ovarial factors, e.g. of gonadotropic hormone(s). The data also suggest depression of activity in the oestrogen-producing system, and in general that the lower reproductivity of XO mice may be attributed to a diminished secretion of gonadotropic hormones together with a smaller number of primordial germ cells in XO mice. The segregation from XO parents seems to favor transmission of X-gametes in young mothers, with however the preference for X tending to decrease with parental age. Since the data tend to rule out postzygotic selection effects, the excess of X-bearing gametes may relate to meiotic drive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00057537
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Mice selected for rearing behavior: Some physiological variables (1973)
    Springer
    Behavior genetics 3 (1973), S. 85-90 
    Details
    ISSN: 1573-3297
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Rearing behavior, locomotor activity, body temperature, and adrenal activity were recorded in male mice from two inbred strains and from two lines selected for rearing frequency. Significant positive correlations between rearing and locomotion indicated that loci responsible for rearing performance may act through a system which regulates the level of arousal. Although strain and line differences were found for behavior, temperature, and adrenal activity, no specific genetic relationship could be established between the behavioral and the physiological variables.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01067692
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    Paper (German National Licenses)
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