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  • 1
    Electronic Resource
    Electronic Resource
    The identification of close-packed hexagonal nickel textures in nickel electrodeposits. A critique (1964)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 17 (1964), S. 443-443 
    Details
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0365110X64000962
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Electron-diffraction evidence of an outward growth tendency in electrolytic crystal growth (1963)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 16 (1963), S. 844-845 
    Details
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0365110X63002218
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Papillomas induced by initiation–promotion differ from those induced by carcinogen alone (1983)
    [s.l.] : Nature Publishing Group
    Nature 304 (1983), S. 69-71 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have used X-chromosome-linked phosphoglycerate kinase (PGK) isoenzymes as markers to determine the number of cells from which skin papillomas develop. Because of inactivation of one of the two X chromosomes in each somatic cell in female mice during embryogenesis, only one of the two PGK genes ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/304069a0
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  • 4
    Electronic Resource
    Electronic Resource
    Adh-negative mutants: Detection of an altered tryptic peptide in a mutant enzyme of Drosophila (1980)
    Springer
    Biochemical genetics 18 (1980), S. 339-351 
    Details
    ISSN: 1573-4927
    Keywords: alcohol dehydrogenase ; Adh-negative mutants ; Adh-tryptic peptides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Adhnll is an ethyl methanesulfonate induced mutant that lacks detectable alcohol dehydrogenase activity. A number of indirect lines of evidence have indicated that the mutation responsible for this loss in enzyme activity is locoalized in the Adh structural gene. We present more direct evidence for this hypothesis here. Utilizing a newly developed procedure for comparing tryptic peptides of Drosophila alcohol dehydrogenase obtained from different strains, we show that the alcohol dehydrogenase-like protein isolated from Adh nll exhibits an altered peptide profile when compared to that of wild type. The implications of this finding as well as the utility of the method for attacking other genetic and developmental problems are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00484247
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  • 5
    Electronic Resource
    Electronic Resource
    Potentiometric estimation of thorium as oxalate (1964)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 203 (1964), S. 415-417 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die potentiometrische Thoriumbestimmung als Oxalat liefert Werte mit konstantem Fehler und kann daher mit entsprechender Korrektur zur Analyse verwendet werden.
    Notes: Summary The potentiometric determination of thorium as oxalate yields values with a constant error and therefore can be employed for analysis with a suitable correction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00473628
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  • 6
    Electronic Resource
    Electronic Resource
    Solvent extraction separation of In/III/-Tl/III/ and Hg/II/-Cd/II/-Co/II/ with sulphoxides (1984)
    Springer
    Journal of radioanalytical and nuclear chemistry 87 (1984), S. 397-403 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Solvent extraction studies have been made on some metals: In/III/-Tl/III/ and Hg/II/-Cd/II/-Co/II/, from ammonium thiocyanate solutions by dialkyl sulphoxides. Separation of these metals from one another can be achieved by suitable choice of the extracted conditions. The nature of the extractable metal species has been elucidated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02166798
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  • 7
    Electronic Resource
    Electronic Resource
    Studies on the population biology of water lettuce: Pistia stratiotes L. (1984)
    Springer
    Hydrobiologia 119 (1984), S. 15-19 
    Details
    ISSN: 1573-5117
    Keywords: Pistia stratiotes ; population biology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Populations of Pistia stratiotes L., a pleustonic macrophyte, have been surveyed in two ponds of different hydrochemical nature. Based on the rosette form, two biotypes were distinguished. They are provisionally designated as ‘Compact’ and ‘loose’ varieties. They occur as sympatric populations in the ponds. A comparison of the diameter of the rosette, root length, 5th leaf length & breadth and length & number of inflorescences, followed by tests of significance, confirm their distinctiveness. In vegetative propagation, they propagate true. The comparison of the biotypes is extended to biomass, productivity allocation, pH of the cell saps, chlorophyll, nucleic acids, total free amino acid (TNPS) content of the leaves and total nitrogen, crude protein and phosphorous in whole plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00016860
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  • 8
    Electronic Resource
    Electronic Resource
    Meiosis in hybrids between tree coffees (C. liberica, C. dewevrei) and Nandi coffee (C. eugenioides) (1981)
    Springer
    Genetica 55 (1981), S. 123-127 
    Details
    ISSN: 1573-6857
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Meiotic behaviour of hybrids between Coffea dewevrei var. ‘excelsa’ and C. eugenioides, and between C. liberica and C. eugenioides, and of open pollinated progeny of these hybrids reveals a close genome relationship in spite of striking morphological differences and distinct geographic separation. In the cross C. dewevrei ‘excelsa’ X C. eugenioides several maternal types occurred, attributed to parthenogenesis. The hybrids are self-sterile and set few seeds on open pollination, again partly involving parthenogenesis, and participation of some unreduced gametes in hybridization. Subdivision of the section Eucoffea into different subsections (C. dewevrei and C. liberica belonging to subsection Pachycoffea, C. eugenioides to Erythrocoffea) has no cytological basis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00135106
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  • 9
    Electronic Resource
    Electronic Resource
    Higher order accuracy finite-difference schemes for hyperbolic conservation laws (1982)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 18 (1982), S. 1019-1029 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An explicit algorithm which gives stable finite-difference schemes, of order of accuracy greater than two, for solving a quasi-linear hyperbolic system of partial differential equations in several space dimensions is presented. Third and fourth order accuracy schemes are derived using this algorithm. The fourth order scheme needs fewer flux evaluations than the scheme given by Abarbanel and Gottlieb.1 Numerical results obtained show that these schemes have the expected accuracy and stability.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620180706
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  • 10
    Electronic Resource
    Electronic Resource
    Polymerization of methyl methacrylate initiated by manganese(III) acetate (1984)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 185 (1984), S. 1139-1144 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The kinetics of thermal polymerization of methyl methacrylate (MMA) initiated by manganese(III) in sulfuric acid is studied in the temperature range between 40 and 607deg;C. The rate of monomer consumption is found to be dependent on [MMA]2, [H+]-1 but independent of [Mn3+]. The rate of manganic ion consumption is directly proportional to [MMA], [Mn3+] and inversely proportional to [H+]. The chain length is directly proportional to [MMA] and inversely proportional to [Mn3+] and [H+]. A plausible reaction mechanism with initiation by Mn3+ OH- species and termination by the interaction of Mn3+ with the polymer radical is proposed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1984.021850607
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