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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 390 (1997), S. 421-424 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The structures of many photosynthetic pigment–protein complexes have now been determined, but a real understanding of the photosynthetic membrane at the molecular level will also require knowledge of the organization and dynamics of these complexes in the intact membrane. Using ...
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The interaction of heparin with salmine protamine was investigated using the electrostatically bound fluorescent probes acridine orange and eosin Y and the 1-(dimethylamino)-5-naphthalene sulfonyl group which is covalently bound to the protamine molecule. Dye displacement experiments indicate a 1 : 1 pairing of anionic heparin sites with cationic protamine sites. Further binding of heparin occurs, after all the cationic sites of protamine are bound up with heparin. This is thought to occur as a result of the different affinities of the sulfate and carboxyl groups of heparin for guanidino groups; the sulfate groups binding preferentially to the complex releasing some of the bound carboxyl groups. Fluorescence polarisation measurements suggest a heparin-protamine complex greater in volume than would be expected from a simple pairing of heparin and protamine molecules, indicating some degree of cross-linking. The limiting salt concentrations for the heparin-protamine complex were determined in the prescence of a number of Group IA and IIA metal chlorides.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Human relations 50 (1997), S. 393-416 
    ISSN: 1573-9716
    Keywords: VALUES ; ATTITUDES ; JOB SATISFACTION ; AFFECT ; ORGANIZATIONAL BEHAVIOR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Sociology
    Notes: Abstract This paper describes a model (the VAM model)which integrates three of the most significantdimensions of the work experience, work values,attitudes, and moods, into one overarching framework.The VAM model proposes that a rich and more completeunderstanding of the experience of work necessitates thesimultaneous consideration of work values, attitudes,and moods. After describing how work values, attitudes, and moods, each capture key aspects ofexperiencing work, we discuss three important dimensionsalong which they vary: time, dynamism, and focus. Thesedimensions underscore the need for the simultaneous consideration of values, attitudes, and moodsfor a fuller understanding of the work experience. Wethen describe how work values, attitudes, and moods havethe potential to influence each other. Finally, we discuss the implications of the VAM modelfor understanding important organizational outcomesincluding extra-role behavior, job performance, socialloafing, absenteeism, and turnover.
    Type of Medium: Electronic Resource
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