Liashko O G
Tsitologiia. 1978 Nov;20(11):1333-7.
The autocorrelation function followed by the definition of spectral density showed the appearance of infradian, circadian and ultradian components of biorhythms of the total number and secretory activity (accumulation and release) of the small intestine goblet enterocytes in the basal, medium and apical portions of the villi. Biorhythm changes were also observed after the inverted feeding. After the inverted (ecologically adequate) feeding, the circadium component of the rhythms was revealed for almost all the indices. The ultradian rhythms formed four ranges; within each of them the ultradian components of biorhythms increased in frequency in the basal-apical direction. After the morning (inverted) feeding, the circadian component was found to decrease in its power for the majority of indices, while the ultradian oscillations became of more complex spectral composition.
自相关函数以及频谱密度的定义表明，在绒毛基部、中部和顶端部分，小肠杯状肠上皮细胞总数和分泌活动（积累和释放）的生物节律出现了次昼夜、昼夜和超昼夜成分。在颠倒喂食后也观察到了生物节律的变化。在进行颠倒（生态适宜）喂食后，几乎所有指标的节律都显示出昼夜成分。超昼夜节律形成了四个范围；在每个范围内，生物节律的超昼夜成分在基部到顶端方向上频率增加。在早晨（颠倒）喂食后，发现大多数指标的昼夜成分功率下降，而超昼夜振荡的频谱组成变得更加复杂。
