engleski

Nonlinear Oscillating Phenomena in Biosystems:Statistical Approach

Biosystems have tendency to repeat their activities in time.These cycles are very important in many essential biological processes that occur in a "scheduled " fashion ( eating, sleeping, cellular regeneration, ..). Chronobiology is a part of biology that examines these time – related phenomena in living organisms. The most important rhythm is the " circadian " rhythm which refers to the (roughly) 24-hour daily biological cycle.There are many other important cycles like infradian rhythms ( long-term cycles ), ultradian rhythms ( short-term cycles ), tidal rhythms and the others. We have studied the influence of the other biological oscillators on the circadian rhythm ( the " internal body clock "). Some very important oscillating parameters like immunoglobulin ( IgA, IgG and IgM ), the blood pressure and the heart frequency are examined. Our sample was the group of 22 young men in the age between 20 and 23. We used ANOVA ( ANalysis Of VAriance ) test. Our investigation confirmed that the oscillating character of these parameters is correlated to the circadian rhythm.

biosystem; chronobiology; biorhythm; circadian rhythm

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