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Part of the book series: Modeling Dynamic Systems ((MDS))

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Abstract

There is nothing so commonplace as a day, or so extraordinary, for the period of time that we customarily divide into 24 hours depends upon the amount of time required for our particular planet to spin one full turn upon its axis. Move to the moon, Mars, or Jupiter, and the day takes on quite different dimensions (if by a “day” we mean one complete cycle of light and darkness). If the earth rotated slower, the day would be longer; if it did not rotate at all, we would either be bathed in perpetual sunlight, or immersed in constant darkness. Needless to say, if absolute time exists, it has nothing to do with day length!

Now that we know the viscera can be taught, the thought comes that we’ve been neglecting them all these years.

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References

  • Boulos, Z., and M. Terman. “Food availability and biological rhythms.” Neurosci. Biobehav. Rev. 4 (1980): 119–131.

    Google Scholar 

  • Fernstrom, J., R.J. Wurtman, B. Hammarstrom-Wiklund, W.M. Rand, H.N. Munro, and C.S. Davidson. “Diurnal variations in plasma concentrations of tryptophan, tyrosine, and other neutral amino acids; effect of dietary protein intake.” Am. T. Clin. Nutr. 32 (1979): 1912–1922.

    CAS  Google Scholar 

  • Glass, L., and M.C. Mackey. The Rhythms of Life. From Clocks to Chaos. Princeton, N.J.: Princeton University Press, 1988.

    Google Scholar 

  • Klerman, E.B., D.-J. Dijk, R.E. Kronauer, and C.A. Czeisler. “Simulations of light effects on the human circadian pacemaker: implications for assessment of intrinsic period.” Am.J. Physiol. 270 (1996): R271–R282.

    CAS  PubMed  Google Scholar 

  • Kronauer, R.E., C.A. Czeisler, S.F. Pilato, M.C. Moore-Ede, and E.D. Witzman. “Mathematical model of the human circadian system with two interacting oscillators.” Am. J. Physiol. 242 (1982): R3–R17.

    CAS  PubMed  Google Scholar 

  • Van der Pol, B. “The nonlinear theory of electric oscillations.” Proc I.RE. 22 (1934) 1054–1086.

    Google Scholar 

  • Watanabe, M., V.R. Potter, and H.C. Pitot. “Systematic osculations in tyrosine trans-aminase and other metabolic functions in liver of normal and adrenalectomized rats on controlled feeding schedules.” J. Nutr. 95 (1968): 207–222.

    CAS  PubMed  Google Scholar 

  • Wever, R.A. “A mathematical model of circadian rhythms.” In: Circadian Clocks. J. Aschoff, ed., Amsterdam: North Holland, 1965, 47–63.

    Google Scholar 

  • Wever, R.A. “Toward a mathematical model of circadian rhythmicity.” In: Moore-Ede, M.C., and C.A. Czeisler, Eds., Mathematical Models of the Circadian Sleep-Wake Cycle. New York: Raven Press, 1984, 17–79.

    Google Scholar 

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© 1998 Springer Science+Business Media New York

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Hargrove, J.L. (1998). Circadian Rhythms. In: Dynamic Modeling in the Health Sciences. Modeling Dynamic Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1644-5_20

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  • DOI: https://doi.org/10.1007/978-1-4612-1644-5_20

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-0-387-94996-3

  • Online ISBN: 978-1-4612-1644-5

  • eBook Packages: Springer Book Archive

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