The effects of acceleration on the mechanical impedance response of a primate model exposed to sinusoidal vibration.

Criteria for developing active and passive isolation mechanisms for reducing the effects of whole-body vibration exposure rely on a thorough understanding of the stiffness, damping, and resonance behaviors of the human or human surrogate body. Three Rhesus monkeys were exposed to seated whole-body sinusoidal vibration between 3 and 20 Hz at 0.69 and 3.

[Use of the principle of reverse problems for detecting processes, occurring in cells suspended in culture. II. Distribution of glutathione, SH groups, and optical density in the E. coli cell cycle].

A method was proposed for calculating the content of intracellular components during the cell cycle of an individual cell. The principle of reverse problems was used in the mathematical model proposed. The model allowed us to calculate changes of intracellular parameters of an individual cell from corresponding parameters measured in the whole culture.

[Use of the principle of reverse problems for detecting processes, occurring in cells suspended in culture. I. Distribution in the exponential growth phase of the age component of the cell population by its dynamic characteristics].

A mathematical model of age distribution in the suspension culture was verified. This model used the principle of reverse problems and allowed determination of age distribution from the cell numbers dynamics in the population. The verification was based on the complex non-destructive measurement of the microorganism parameters, which allowed simultaneous determination of the cell population dynamics and the distribution of cells according to their projection areas.