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Biomedical subjects

V V Pivovarov

Publications and source records attributed to V V Pivovarov.

5 recordsLinked to original sources
PubMed2004

Relationship between changes in rat behavior and integral biochemical indexes determined by laser correlation spectroscopy after photothrombosis of the prefrontal cortex.

Experiments on rats showed that Noopept improved retention and retrieval of conditioned passive avoidance response after phototrombosis of the prefrontal cortex (a procedure impairing retention of memory traces). The impairment of mnesic functions was accompanied by changes in integral biochemical indexes of the plasma determined by laser correlation spectroscopy. Treatment of behavioral disorders with Noopepet normalized biochemical indexes.

Animals↗
PubMedDate not supplied

[Polysystemic assessment of the state of sanogenesis in workers employed in nuclear fuel plants. The analysis of functional state of cardiovascular, respiratory, and psychomotor systems].

The state of the cardiovascular, respiratory, and psychomotor systems of workers employed in nuclear fuel plant was evaluated using a computer-assisted laboratory complex. It was found that neuroendocrine regulation of the peripheral circulation and muscular activity responsible for fine motions are most vulnerable to industrial hazardous factors.

Adult↗
PubMedDate not supplied

[A spiroarteriocardiorhythmograph].

The design and principle of operation of a spiroarteriocardiorhythmograph are described. The device provides continuous noninvasive measurement of arterial pressure, detection of inhaled and exhaled air flows with a high-sensitivity ultrasonic spirometr, electrocardiogram detection, and joint analysis of these dynamal processes. Continuous measurement of pressure is performed by the method suggested by Penaz. The method is based on assessment of the volume of blood vessels of patient's finger from photoplethysographic signal. An electropneumatic follow-up system produces essure counteracting the changes in the diameter of arterial vessels patient's finger under the cuff. Thus, the diameter of the finger arteries remains constant, and the pressure in the cuff is equal to blood pressure in the arteries. This provides a unique opportunity for long-term detection of the entire curve of arterial pressure. Previously, such measurements could be performed only by the invasive Oxford technique.

Blood Pressure↗
PubMedDate not supplied

[Computerized motion analyzer].

The goal of this work was to describe the principle of operation and construction of KID apparatus for objective quantitative assessment of the state of brain structures responsible for programming, initiation, implementation, and sensory control of human motor activity. The apparatus provides automatic assessment of parameters of visual and motor coordination, adaptability, motion accuracy, and reactivity in subjects performing simple motor tests. The testing procedure based on multidimensional analysis of motor activity is theoretically substantiated. Multidimensional analysis makes it possible to separate contributions of various psychophysiological processes to motor activity. The psychomotor tests constituting the testing procedure are described in their sequence order.

Computers↗