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  • Bone marrow transplant  (1)
  • Commodity markets  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Consumer memory and price fluctuations in commodity markets: An integrodifferential model (1989)
    Springer
    Journal of dynamics and differential equations 1 (1989), S. 299-325 
    Details
    ISSN: 1572-9222
    Schlagwort(e): Commodity markets ; time delays ; stability ; Hopf bifurcation ; 34K15 ; 45J05 ; 90A16
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Notizen: Abstract A model for the dynamics of price adjustment in a single commodity market is developed. Nonlinearities in both supply and demand functions are considered explicitly, as are delays due to production lags and storage policies, to yield a nonlinear integrodifferential equation. Conditions for the local stability of the equilibrium price are derived in terms of the elasticities of supply and demand, the supply and demand relaxation times, and the equilibrium production-storage delay. The destabilizing effect of consumer memory on the equilibrium price is analyzed, and the ensuing Hopf bifurcations are described.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01053930
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Fluctuations in circulating cell numbers following chemotherapy or bone marrow transplant (1994)
    Springer
    Journal of mathematical biology 32 (1994), S. 761-770 
    Details
    ISSN: 1432-1416
    Schlagwort(e): Fluctuations ; Stochastic PDEs ; Blood cell maturation ; Chemotherapy ; Bone marrow transplant
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Mathematik
    Notizen: Abstract We study the effect of noise on the behaviour of a dynamic cell population model in which cell replication and maturation take place simultaneously. We assume that the maximum proliferative potential ν fluctuates uniformly about a mean value of v, and show that a decrease in v and/or the input flux u in into the population can lead to an increase in the variance in the cellular efflux u f. We draw a qualitative correspondence between this behaviour and the commonly observed increase in the variance of circulating blood cell numbers following chemotherapy and radiotherapy, both of which lead to a decrease in v and u in , and bone marrow transplant which probably corresponds to a decrease in u in .
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00168796
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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