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  • 1965-1969  (5)
  • 1960-1964  (2)
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Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    A Particular Geomagnetic Daily Variation ( Sq p ) in the Polar Regions on Geomagnetically Quiet Days (1962)
    [s.l.] : Nature Publishing Group
    Nature 195 (1962), S. 555-557 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A PRELIMINARY investigation of geomagnetic variation in the antarctic region1 has shown that the geomagnetic daily variation field, Sq, on quiet days in the dark polar region, is almost an extension of the well-known Sq -field in temperate latitudes, Sq0, but in the sun-lit polar region, a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/195555a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    ‘Memory’ of Initial Remanent Magnetization and Number of Repeating of Heat Treatments in Low-temperature Behaviour of Hæmatite (1961)
    [s.l.] : Nature Publishing Group
    Nature 190 (1961), S. 620-621 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The thermo-remanent magnetization and the isothermal remanent magnetization of the synthetic haematite powders were subjected to the repeated cooling-heating cycles between liquid nitrogen temperature and room temperature. In both cases, change in the intensity of remanent magnetization after the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/190620a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Intensity of the Geomagnetic Field during a Reversed Polarity (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 274-275 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Data for the secular variation based on direct observations and archeomagnetism are available only for the past few thousand years. The intensity of the geomagnetic field more than six thousand years ago is scarcely known, particularly during a period of reversed polarity. Demagnetization by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/212274a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Incorporation of tritiated thymidine into mitochondrial DNA of the liver and kidney cells of chickens and mice in tissue culture (1967)
    Springer
    Histochemistry and cell biology 10 (1967), S. 305-308 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary 3H-thymidine incorporation into mitochondrial DNA of the liver and the kidney cells of chick embryos and newborn mice in tissue culture was shown by means of electron microscope radioautography with accurate localization. In these cells, about 20% of all the mitochondria were labeled at their matrices between the cristae within 4 hours in contact with the radioisotope, which were removed by DN'ase. From the results, it is clear that the mitochondria of avian and mammalian cells in tissue culture synthesize DNA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00304312
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Electron microscopic demonstration of lipase in the pancreatic acinar cells of mice (1968)
    Springer
    Histochemistry and cell biology 13 (1968), S. 215-222 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A method for electron microscopic demonstration of lipase has heen developed by means of lead precipitation technique, modifying the original technique for light microscopy by Gomori. Care was taken to reduce the concentration of lead nitrate solution for substitution in order to prevent both the non-specific lead deposition and the diffusion. Applying the method to the pancreatic acinar cells of mice, specific activity was observed in rough surfaced endoplasmic reticulum, Golgi apparatus, zymogen granules and secretory canaliculi.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303755
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A modification of dry-mounting technique for radioautography of water-soluble compounds (1966)
    Springer
    Histochemistry and cell biology 7 (1966), S. 370-371 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306625
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    A new technique for electron microscopic dry-mounting radioautography of soluble-compounds (1969)
    Springer
    Histochemistry and cell biology 18 (1969), S. 241-249 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A new technique for dry-mounting electron microscopic radioautography of water soluble-compounds has been established. Tissues containing labelled compounds are cut as small as less than 1 mm in diameter, plunged into isopentane cooled to about −160° C with liquid nitrogen, and frozen-dried at −50° C for 24–48 hours. After drying, the tissues are embedded in Epon, which is polymerized according to the conventional procedure. Ultrathin sectioning is accomplished with ethylene glycol instead of water in the knife trough so that water is not involved in the floatation and expansion of the ultrathin sections. Sections are picked up on collodion coated grid meshes from ethylene glycol. Radioautographic emulsion is diluted 1 part in 10 parts with distilled water at 40° C. Ten ml of the diluted emulsion is added with 0.2 ml of 2 per cent aqueous solution of dioctyl sodium sulfosuccinate. A thin film of the emulsion is obtained by dipping a platinum wire loop into the emulsion. The loop is set on a flat surface of a desk for air-drying. The dried film is then applied to the mesh and it is warmed at 37° C for 1 hour in order to help the film to adhere to the mesh. Thus, dry-mounting of packed monolayers of radioautographic silver crystals can be constantly achieved. The mesh is then exposed, developed and stained according to the conventional technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306170
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    Paper (German National Licenses)
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