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  • Articles: DFG German National Licenses  (3)
  • 1975-1979  (3)
  • Chemistry  (2)
  • Cultured plant cells  (1)
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  • Articles: DFG German National Licenses  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Haplopappus gracilis cell strains resistant to pyrimidine analogues (1979)
    Springer
    Theoretical and applied genetics 54 (1979), S. 81-87 
    Details
    ISSN: 1432-2242
    Keywords: Cultured plant cells ; Mutants ; Pyrimidine analogues ; Haplopappus gracilis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Strains of Haplopappus gracilis (Nutt.) Gray cells resistant to 6-azauracil have been isolated from cultures of diploid cells. These strains are also resistant to 8-azaguanine, as is their parent. The variants are 100- to 125-fold more resistant to 6-azauracil than their parent, and they exhibit different spectra of cross resistance to other pyrimidine analogues. The phenotype of each variant is stable in the absence of selection. The majority of cells in cultures of the variants are diploid; all others examined were tetraploid. Initial rates of uptake of uracil are not reduced in the variants. Fluorouracil, to which two variants are resistant, is taken up by one of them as well as by the parent. Responses of the other two to fluorouracil are not correlated with decreased ability to accumulate this analogue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00265474
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Water-soluble photocurable elastomer (1979)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 23 (1979), S. 115-122 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A low molecular weight copolymer of vinylbenzyl chloride and butadiene was quaternized with N-dimethylaminoethylmethacrylamide. The resin was coated from water solution to give a photorelief plate which could be developed with water. A photocured protective coating on steel showed good toughness.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1979.070230110
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Identification of a nitrone as an in vitro metabolite of N-methylamphetamineAbbreviation: NMA = N-methylamphetamine. (1978)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 5 (1978), S. 418-422 
    Details
    ISSN: 0306-042X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The relatively labile nitrone, α-methyl-(N-methylene)benzeneethanamine N-oxide was isolated from incubates of (±)-N-methylamphetamine with fortified liver homogenates from rats and rabbit. Identification of the nitrone was confirmed directly by gas chromatography and gas chromatography mass spectrometry and, after its conversion to isoxazolidine adducts by the action of methyl and ethyl acrylate. An authentic sample of the nitrone was synthesized unequivocally from N-hydroxyamphetamine and formaldehyde. The isomeric nitrone, N-(α-methylbenzeneethylidene)methylamine N-oxide, was also synthesized and its gas chromatographic and gas chromatographic mass spectrometric characteristics determined to confirm that the metabolically formed nitrone was not N-(α-methylbenzeneethylidene)methylamine N-oxide. Two previously unreported metabolites of (±)-N-methylamphetamine, N-hydroxyamphetamine and 1-hydroxy-1-phenyl-2-propanone, were isolated from rat in vitro experiments; the latter metabolite was not produced in vitro by rabbit liver homogenates.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200050609
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    Paper (German National Licenses)
    Fulltext
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