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  • 1
    Electronic Resource
    Electronic Resource
    5-Bromodeoxyuridine-induced amplification of prolactin gene in GH cells is an extrachromosomal event (1983)
    s.l. : American Chemical Society
    Biochemistry 22 (1983), S. 6077-6084 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00295a006
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  • 2
    Electronic Resource
    Electronic Resource
    Energy and nuclear charge dependence of abundance enhancements of solar cosmic ray heavy ions in three large solar events (1983)
    Springer
    Solar physics 89 (1983), S. 163-180 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The differential flux and energy spectra of solar cosmic ray heavy ions of He, C, O, Ne, Mg, Si, and Fe were determined in the energy interval E = 3–30 MeV amu-1 for two large solar events of January 24, 1971 and September 1, 1971 in rocket flights made from Ft. Churchill. From these data the relative abundances and the abundance enhancement factors, ξ, relative to photospheric abundances were obtained for these elements. Similar results were obtained for a third event on August 4, 1972 from the available published data. Characteristic features of ξ vs nuclear charge dependences were deduced for five energy intervals. The energy dependence of ξ for He shows a moderate change by a factor of about 3, whereas for Fe, ξ shows a very dramatic decrease by a factor of 10–20 with increasing energy. It is inferred that these abundance enhancements of solar cosmic ray heavy ions at low energies seem to be related to their ionization states (Z *) and hence studies of Z * can give information on the important parameters such as temperature and density in the accelerating region in the Sun.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00211960
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  • 3
    Electronic Resource
    Electronic Resource
    Studies on some biochemical aspects in the toad after 48 hours of exposure to simulated high altitude (1983)
    Springer
    International journal of biometeorology 27 (1983), S. 133-141 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Blood glucose, tissue carbohydrate, total plasma and tissue protein and plasma electrolyte concentrations were estimated in male toads, exposed to simulated high altitude of 12,000, 18,000 and 24,000 feet respectively for 48 hours of continuous exposure in a decompression chamber. Blood glucose and muscle carbohydrate were decreased significantly in animals exposed to 18,000 and 24,000 feet altitude, without having any change in the liver carbohydrate. Muscle carbohydrate was also decreased in 12,000 feet altitude exposed animals. Plasma protein content was increased significantly in 18,000 and 24,000 feet altitude exposed animals, whereas no such change was noted in tissue protein content. A slight increase of plasma sodium concentration was found in animals exposed to 24,000 feet, and a decrease of potassium concentration was also noted in 18,000 and 24,000 feet exposed animals. Magnesium concentration of the plasma was increased in 18,000 and 24,000 feet exposed animals. This animal had also shown an eosinopenia, lymphopenia and neutrophilia when exposed at 24,000 feet high altitude.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02185744
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  • 4
    Electronic Resource
    Electronic Resource
    Interaction radius and strong gravity (1983)
    Springer
    Czechoslovak journal of physics 33 (1983), S. 877-888 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01589884
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  • 5
    Electronic Resource
    Electronic Resource
    Direct observation of sintering of VAD soot particles by hot stage scanning electron microscopy (1983)
    Springer
    Journal of materials science 2 (1983), S. 245-248 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00723247
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  • 6
    Electronic Resource
    Electronic Resource
    Yield and P uptake by wheat as affected by residual and applied P (1983)
    Springer
    Nutrient cycling in agroecosystems 4 (1983), S. 239-247 
    Details
    ISSN: 1573-0867
    Keywords: Long term experiment ; Residual P ; applied P ; fertilizer P uptake ; residual P uptake ; per cent P utilization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The effect of residual (built up in continued fertilizer experiments) and applied P in Fatehpur loamy sand and Jodhan sandy loam soils of two long term experiments on its availability and uptake by wheat (Triticum aestivum L.) was studied using32P in greenhouse experiment. Dry matter yield increased significantly with carry over P. Response in the absence of residual P was observed up to a direct application of 134 kg P ha−1, whereas, in the presence of carry over P, the response was confined upto 67 kg P ha−1 at site A. The response was however, observed up to 67 kg P ha−1 irrespective of carry over P at site B. Total P uptake by wheat was significantly increased at all levels of residual P. However, it did not differ signficantly among levels of residual P when these were high. The uptake of soil P (residual) increased signficantly with increase in the dose of directly applied P, indicating that addition of inorganic P fertilizer tends to mobilize the native soil P. Per cent utilization of fertilizer P was enhanced in soils having residual P from continuous application of both inorganic and organic P sources.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01049480
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  • 7
    Electronic Resource
    Electronic Resource
    The dnaX gene encodes the DNA polymerase III holoenzyme τ subunit, precursor of the γ subunit, the dnaZ gene product (1983)
    Springer
    Molecular genetics and genomics 192 (1983), S. 80-86 
    Details
    ISSN: 1617-4623
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The E. coli dnaX and dnaZ gene products, essential for E. coli DNA replication, serve in chain elongation. Both genes, located at 10.4 min and previously cloned into a λ vector and a ColE1 plasmid, were subcloned into pBR322 (pMK212). The coding region for the dnaX and dnaZ genes was localized to a 2.2-kb segment by deletion analysis of pMK212. The products of dnaX and dnaZ genes were identified as 78 kd and 52 kd polypeptides, respectively, by using maxicells bearing deletion clones of pMK212. Peptide mapping after limited proteolysis showed that the dnaZ gene product (52 kd) is a part of the dnaX gene product (78 kd), thus accounting for the coding capacity of the 2.2 kb region for both the dnaX and dnaZ genes. The dnaX gene product appears to be the τ subunit of DNA polymerase III holoenzyme; the dnaZ gene product is confirmed as the γ subunit of the holoenzyme.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327650
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  • 8
    Electronic Resource
    Electronic Resource
    Chemical modification of polystyrene, III. Electrophilic substitution of polystyrene with aromatic anhydrides (1983)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 113 (1983), S. 11-19 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Polystyrol wurde durch Friedel-Crafts-Acylierung mit Trimellithsäureanhydrid in Gegenwart von wasserfreiem Aluminiumchlorid als Katalysator chemisch modifiziert. Das Produkt wurde hinsichtlich seiner Struktur und physikalisch-chemischen Eigenschaften durch Messung der Gesamtkapazität, der thermischen Stabilität und des Titrationsverhaltens charakterisiert. Die thermischen Kenngrößen des mit Trimellithsäureanhydrid modifizierten Polystyrols wurden im Hinblick auf ihre strukturellen Eigenheiten mit denen des mit Phthalsäureanhydrid und mit Pyromellithsäuredianhydrid modifizierten Polystyrols verglichen.
    Notes: Polystyrene has been chemically modified by Friedel-Crafts acylation reaction with trimellitic anhydride in the presence of anhydrous aluminium chloride as catalyst. The product has been characterized in respect of its structure and physicochemical properties by measuring its total capacity, thermal stability and the behaviour to pH metric titration. The thermal characteristics of the trimellitic anhydride modified polystyrene have been compared with the same for phthalic anhydride and pyromellitic dianhydride modified polystyrene in the light of their structural characteristics.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1983.051130102
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  • 9
    Electronic Resource
    Electronic Resource
    Some observations on the polymerization of N-vinylcarbazole by carbon black (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 1861-1866 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170210626
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  • 10
    Electronic Resource
    Electronic Resource
    Photopolymerization of methyl methacrylate with sulfur dioxide-benzophenone combination as initiator (1983)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 21 (1983), S. 3347-3352 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1983.170211132
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