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  • Aorta  (1)
  • cyclic polyether  (1)
  • 1
    Digitale Medien
    Digitale Medien
    What stops the flow of blood from the heart? (1988)
    Springer
    Heart and vessels 4 (1988), S. 241-245 
    Details
    ISSN: 1615-2573
    Schlagwort(e): Aorta ; Waves ; Flow deceleration ; Energy flux ; Left ventricle
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary The determinants of aortic pressure and flow are generally studied using impedance methods, the results of which indicate that reflected waves are important, particularly during aortic flow deceleration. An alternative analysis of measured aortic pressure and velocity, using the method of characteristics to calculate the energy flux per unit area of the waves, suggests a different conclusion. We suggest that aortic deceleration is caused by a discrete expansion wave propagating from the left ventricle, and that energy thus recovered by the ventricle may be coupled to early filling of the ventricle.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02058593
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Redox responsive metal complexes containing cation binding sites (1987)
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 5 (1987), S. 521-524 
    Details
    ISSN: 1573-1111
    Schlagwort(e): Molybdenum ; nitrosyl ; pyrazolylborate ; electrochemistry ; cyclic polyether ; complexation ; sodium ; potassium
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract A series of cyclic polyethers, which incorporate the redox active {Mo(NO)}3+ moiety, have been prepared and characterised. The electrochemistry of these complexes has been investigated and their reduction potentials found to undergo anodic shifts upon the binding of alkali metal cations to the cyclic polyether moiety. The magnitude of the shift appears relatively insensitive to the size of the cyclic polyether ring, but is substantially reduced when K+ is used in place of Na+.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00664111
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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