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  • 1985-1989  (4)
  • 1955-1959  (2)
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  • 1
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The complete nucleotide sequence of the PB2 gene of influenza virus A/Chile/1/83 (H1N1) is presented. Sequence comparison between A/Chile PB2 protein and the known PB2 sequences of the influenza strains A/WSN/33 (H1N1), A/PR/8/34 (H1N1), A/NT/60/68 (H3N2), A/Kiev/59/79 (H1N1), A/FPV/Rostock/34 (H7N1), and B/Ann Arbor/1/66 indicates extensive amino acid homology for the influenza A virus PB2 proteins. Small clusters of basic amino acids are conserved in all PB2 proteins including the influenza B PB2 protein which has only 39% sequence homology overall to the PB2 polypeptides of type A influenza viruses. The evolutionary rate of 5.7 × 10−3 nucleotide substitutions per site per year and 0.25% amino acid changes per year between the A/Chile/1/83 and A/NT/60/68 PB2 appears to be higher than that calculated earlier for A/NT, A/PR/8 and A/WSN. An unusually high degree of sequence change between A/Chile/1/83 and A/Kiev/59/79 PB2 polymerase was revealed and this is discussed in terms of its probable origin.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The complete nucleotide sequence of the neuraminidase (NA) gene of influenza virus A/Chile/1/83 (H1N1) has been determined after reverse transcription and cloning into the plasmid pAT 153/PvuII/8. The gene is 1461 nucleotides long and codes for a protein of 470 amion acids. The overall nucleotide and predicted amino acid sequence of the A/Chile/1/83 NA exhibits a high homology with other N1 neuraminidases. Hyper-variable regions concerning A to G exchanges are discussed.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 34 (1987), S. 309-315 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Катализаторы Fe2O3−MoO3/SiO2 были приготовлены специальными методами. Их каталитические свойства исследовали в аммоксидировании пропилена. Взаимодействие аммиака с катализаторами было исследовано с помощью ИК-спектроскопии и балланса МакБэйна. Взаимодействие железа с катализаторами MoO3/SiO2 изменяет как кислотные, так и редокс свойства катализаторов.
    Notes: Abstract Catalytic ammoxidation of propylene was studied using Fe2O3−MoO3/SiO2 catalysts, which have been prepared following a special method. Interaction of ammonia with the catalysts was studied by means of IR spectroscopy and gravimetrically using a McBain balance. Introduction of iron into MoO3/SiO2 catalysts modifies acidic as well as redox properties.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 41 (1958), S. 1984-1997 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Durch die auf verschiedenen, sterisch eindeutigen Wegen durchgeführte chemische Verknüpfung des Mutterkornalkaloids Agroclavin mit Elymoclavin und D-Dihydro-lysergsäure(I) wurde bewiesen, dass die Ringe C und D im Agroclavin gleiche trans-Verknüpfung wie in der D-Dihydro-lysergsäure(I) aufweisen.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In der vorliegenden Arbeit wird der Aufbau einer bisher praktisch unbekannt gebliebenen Substanzgruppe, der Malonimide, beschrieben. Diese können, zum Teil leicht und in guter Ausbeute, durch Umsatz von substituierten Malonsäurehalogeniden mit geeignet substituierten Aminen oder Hydrazin-Derivaten hergestellt werden. Zahlreiche der beschriebenen Malonimide zeichnen sich im Tierexperiment durch hervorragende antiphlogistische Eigenschaften aus.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Thermal Behaviour of Heteropoly Acids of the Type H3+n[PVnMo12-nO40] · x H2O (n = 0, 1, 2, 3). II. Raman and Infrared Spectroscopic InvestigationsThe investigation of de- and rehydratization of the heteropoly acids H3+n[PVnMo12-nO40] · x H2O (n = 0, 1, 2, 3) shows typical changes in the region of valence and bridging vibrations in the Raman and infrared spectra, in particular during the existence of „anhydrous“ forms. The time dependence of rehydratization is also demonstrated well with a special Raman sample technique.
    Notes: Die Untersuchung der De- und Rehydratisierung der Heteropolysäuren H3+n[PVnMo12-nO40] · x H2O (n = 0, 1, 2, 3) ergibt typische Änderungen im Bereich der Valenz- und Brückenschwingungen in den Raman- und Infrarotspektren, besonders im Existenzbereich der „Anhydride“. Auch die Zeitabhängigkeit der Rehydratisierung läßt sich mit einer speziellen Ramanküvette gut verfolgen.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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