Mathematical description of human body constitution and fatness.

Using mathematical modeling of human body, we demonstrated logical drawbacks of body mass index (BMI1 = M/H(2); A. Quetelet, 1832) and proposed more precise body mass index (BMI2 = M/H(3)) as well as body constitution index (BCI = (M/H(3))(1/2)) and fatness index (FI = M/HC(2)), where M, H, and C are body weight, height, and wrist circumference of the individual.

[Morphometric evaluation of relative adipose tissue content in the human body].

Analysis of the mathematical models of the human body composition revealed main shortcomings of body mass index (A. Quetelet, 1832). This allowed to offer more accurate body mass index (BMI = M/H3), body build index [BBI = (BMI)1/2] and body fatness index (BFI = M/HC2), where (M), (H) and (C) signified the mass, height and wrist circumference correspondingly.

Structural analysis of heart rhythm spectrogram in narcotized cats.

Eight types of peaks were revealed in the cardiac rhythm spectrum during acute experiments on vagotomized cats. Some peaks had no physiological nature and resulted from specificity of ECG processing by Fourier analysis, while others reflected myogenic reaction of the sinoatrial node (length-dependence of automaticity) to changes in venous return caused by respiratory-induced and other variations of the blood flow in the cardiovascular system.

Comparative assessment of conduction anesthesia produced by procaine, marcaine, richlocaine, and RU-353.

Conduction anesthesia of the vagus nerve produced by procaine (0.5%), marcaine (0.25%), richlocaine (0.

A method for evaluation of conduction anesthesia.

We propose a new method for evaluation of conduction anesthesia in animals: by the degree of prolongation of cardiac cycle during vagus nerve stimulation by solitary electric discharges synchronous to the dominant ECG wave, proximally from the site of anesthetic application on the nerve.