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  • gene expression
  • nitrogen
  • Springer  (4)
  • Institute of Physics
  • 2020-2023
  • 2005-2009
  • 2000-2004
  • 1995-1999
  • 1980-1984  (4)
  • 1950-1954
  • 1980  (4)
Collection
Keywords
Publisher
  • Springer  (4)
  • Institute of Physics
Years
  • 2020-2023
  • 2005-2009
  • 2000-2004
  • 1995-1999
  • 1980-1984  (4)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Carboxylesterase-2 in the development of the loach (Misgurnus fossilis L.) (1980)
    Springer
    Biochemical genetics 18 (1980), S. 353-364 
    Details
    ISSN: 1573-4927
    Keywords: carboxylesterase ; electrophoretic variants ; fish development ; gene expression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Two esterases splitting α-naphthylacetate have been found in the tissues of adult loaches and in embryos. These were identified as arylesterase (E-1) (arylester hydrolase, E.C. 3.1.1.2) and carboxylesterase (E-2) (carboxylic ester hydrolase, E.C. 3.1.1.1.). In unfertilized loach eggs E-1 and E-2 synthesized during oogenesis were found. Active E-2 synthesized under the control of E-2 genes of the embryo appeared in embryos from the stage of 40–50 h of development. Maternal E-2 molecules synthesized in oogenesis or on the stored templates in embryogenesis persisted in larvae up to days 5–6 of development. Two genes controlling the synthesis of two forms of E-2 differing in electric mobility were found in the loach population from the delta of the Danube. The genes for fast and slow E-2 were shown to segregate in meiosis and to be allelic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00484248
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  • 2
    Electronic Resource
    Electronic Resource
    Dry matter content and mineral composition of potatoes grown in Cyprus (1980)
    Springer
    Potato research 23 (1980), S. 371-375 
    Details
    ISSN: 1871-4528
    Keywords: nitrogen ; phosphorus ; potassium ; calcium ; sodium ; nitrate ; sulphate ; micronutrients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The specific gravity and dry matter content of 193 tuber samples (cultivars: Arran Banner, Spunta, Up-to-Date, Cara) from crops grown at Kokkinochoria, the major potato growing area of Cyprus, were related to each other as follows: Dry matter (%)=−269.59+268.24×specific gravity. This regression accounted for 82.4% of the variation; the fiducial limits (P〈0.05) for single determinations of specific gravity were±1.54 percentage units. The mineral contents of the tubers were similar to those reported in other countries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02360677
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal conductivity of nitrogen at high pressures (1980)
    Springer
    International journal of thermophysics 1 (1980), S. 375-381 
    Details
    ISSN: 1572-9567
    Keywords: thermal conductivity ; high pressure ; nitrogen ; computer simulation ; modified Enskog theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The results of the measurements of the thermal conductivity coefficients of nitrogen at 298.15 K from atmospheric pressure up to 1 GPa are reported. The experimental values are used to test the Modified Enskog Theory and the corresponding state principle. The experimental values are also compared with the results of computer simulation of the thermal conductivity of a Lennard Jones fluid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00516564
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  • 4
    Electronic Resource
    Electronic Resource
    Annual changes of nitrogen and phosphorus in two aquatic macrophytes (Nymphaea Tuberosa and Ceratophyllum Demersum) (1980)
    Springer
    Hydrobiologia 70 (1980), S. 31-35 
    Details
    ISSN: 1573-5117
    Keywords: macrophyte ; nitrogen ; phosphorus ; nutrients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The nitrogen and phosphorus content of Nymphaea tuberosa and Ceratophyllum demersum, in Lake Onalaska, Wisconsin, was studied for a year. On a yearly basis, N. tuberosa exhibited nitrogen and phosphorus differences among seasons and among plant parts. Variation among plant parts was also evident in C. demersum. However, within individual plant structures, no seasonal differences were observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015487
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