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  • Articles  (14)
  • Wiley-Blackwell  (12)
  • Genetics Society of America (GSA)
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  • Articles  (14)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 19 (1985), S. 69-76 
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Journal of Physical Organic Chemistry 7 (1994), S. 734-742 
    ISSN: 0894-3230
    Keywords: Organic Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: This paper extends previous work on the dynamic averaging of distinct liquid environments by cage exchange to include potential energy fluctuations at the cage centers due to Brownian motions of molecules in the cage walls. After a brief review of the effect of cage exchange on the Schrödinger wave train associated with the electronic ground state of the caged molecule, typical magnitudes and time-scales for the Brownian potential energy fluctuations are estimated. Then a zig-zag model for the resulting noise in the wave trains is developed, and applied to analyze distinguishability in the presence of noisy cage exchange. When distinguishability survives the noise, the distinct caged species are fully fledged environmental isomers. Applications of these concepts are discussed.
    Additional Material: 10 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 61 (1989), S. 811-812 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0730-2312
    Keywords: N-acetylgalactosaminyltransferase ; neural retina ; monoclonal antibodies ; enzyme ; acceptor ; cell surface complex ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Intact embryonic chick neural retina cells have at their surface an N-acetylgalactosaminyltransferase which catalyzes the incorporation of N-acetylgalactosamine from UDP-N-acetylgalactosamine into endogenous macromolecular acceptors. The enzyme along with its endogenous acceptors can be isolated as a particulate complex following treatment of membrane-enriched fractions with Triton X-100. In this paper we report on two separate fusions generating monoclonal antibodies: one using as immunogen the particulate complex and the second using as immunogen a soluble N-acetylgalactosaminyltransferase found in tissue-culture-conditioned medium which lacks endogenous acceptor activity. Antibodies from both fusions recognize an antigen which is tightly associated with the particulate transferase/acceptor complex and a soluble antigen having N-acetyl-galactosaminyltransferase activity toward exogenously added acceptors. The antibodies recognize a component of ca Mr 220,000, which shows N-acetylgalactosaminyltransferase activity after SDS-gel electrophoresis and transfer to nitrocellulose. This component comigrates on two-dimensional gel electrophoresis with an iodinatable cell surface component whose presence at the cell surface correlates with endogenous transferase activity. We conclude that the antibodies recognize the transferase enzyme itself. Immunohistochemical analysis shows that the enzyme is initially localized throughout the embryonic neural retina in a pattern indicative of a cell surface disposition but becomes restricted to the outer plexiform layer and to outer segments in the adult.
    Additional Material: 12 Ill.
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  • 5
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aliphatische und aromatische Thiosäuren liefern in Gegenwart kleiner Mengen ihrer Alkali- oder quartären Ammoniumsalze Dithioacylale (I), Thiobenzoesäure auch mit Borfluorid. Die Reaktion scheint nicht über den den Dithioacylalen zugrundeliegenden Aldehyd zu verlaufen. Die Eigenschaften der Bis-acylverbindungen von 1,1-Dithiolen werden beschrieben.
    Additional Material: 1 Tab.
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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: Synthesis, Vibrational Spectra, and Crystal Structure Analysis of Di- and Trifluoro-tetramethylammonium SaltsThe tetramethylammonium salts (CH3)3NCH2F+ (II), (CH3)3NCHF2+ (III), and (CH3)3NCF3+ (IV) were prepared by quaternation of the corresponding fluoromethylamines. III was also generated from (CH3)3N and Zn/CF2Br2/KF in acetonitrile. II, III, and IV were characterized by NMR and vibrational spectroscopy, a normal coordinate analysis being undertaken for IV. The crystal structures of the iodides of III and IV have been determined. In both cations the N—CH3 distances are on the average (III 1.508(2) Å; IV 1.514(5) Å) longer than the N—CF valencies (III 1.497(4) Å; IV 1.491(6) Å).
    Notes: Ausgehend von den zugehörigen Aminen wurden die fluorsubstituierten Tetramethylammonium-Salze (CH3)3NCH2F+ (II), (CH3)3NCHF2+ (III) und (CH3)3NCF3+ (IV) durch Quaternierung dargestellt. III bildet sich auch aus (CH3)3N und Zn/CF2Br2/KF in Acetonitril. II, III und IV wurden durch KMR-Spektroskopie charakterisiert und schwingungsspektroskopisch unter Einschluß einer Normalkoordinatenanalyse für IV untersucht. Von den Iodiden von III und IV wurden Kristallstrukturanalysen durchgeführt. In beiden Kationen sind die N—CH3-Abstände im Schnitt (III 1,508(2) Å; IV 1,514(5) Å) länger als die N—CF-Bindungen (III 1,497(4) Å; IV 1,491(6)Å).
    Additional Material: 5 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 16 (1977), S. 714-714 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 1 (1969), S. 585-587 
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 89 (1977), S. 761-762 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 368 (1969), S. 327-335 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurde die Reaktion von Neodym mit Wasserstoff von 100-800°C untersucht. Der Hauptteil des H2 wird mit konstanter Geschwindigkeit aufgenommen. Die schließliche Sättigung ist diffusionsbestimmt und folgt parabolischen Beziehungen. Anhand der Durchschnittszusammensetzung (H/Nd) des Festkörpers als Funktion der Zeit wird ein Reaktions-mechanismus vorgeschlagen.
    Notes: The reaction of neodymium with hydrogen was investigated from 100 to 800°C. The predominant portion of the hydrogen is taken up at constant rate. The final saturation with hydrogen is diffusion-controlled and obeys the parabolic laws. A reaction mechanism is proposed in terms of the various phases of reaction displayed by plots of average composition versus time.
    Additional Material: 7 Ill.
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