Saratov JOURNAL of Medical and Scientific Research

Grigoryev O.A.

State Scientific Research Center n.a. A. I. Burnazyan — Federal Medical Biophysical Center of Federal Medical Biological Agency, Head of department, Doctor of biological sciences

The magnetic field near power lines in the Moscow region: the results of measurements and their analyze

Summary:

The aim: to analyze the real power frequency magnetic field (50 Hz) values near power lines. The material. Long-term measurements of the power frequency magnetic field (50 Hz) near power lines of 110 kV, 220 kVand 500 kVin the Moscow region. Methods. Measurements were made by tracks which were perpendicular to the wires. Length of tracks was up to 40 m. Sensor of measurer was located on 1.8 m under the ground. General quantity of measurement points were 1103. The results. Was obtained general characteristics of real values of strength of electric field and values of magnetic flux density depending to distance to the projection last wire near power lines. Conclusion. Analysis of the results has the values of the magnetic field of power lines correspond to the Russian rules in all cases. Using additional World Health Organization safety criteria for magnetic fields (the class of carcinogenic risks 2B) requires the expansion of the health safety zone 2-3 times.

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Dependence of a rabbit's reaction on the frequency of repetition of an impulse and current exposition in experiment

Year: 2013, volume 9 Issue: №4 Pages: 839-843
Heading: Physiology and Pathophysiology Article type: Short message
Authors: Koklin А.Е., Lukyanova S.N., Grigoryev О.A., Andrianova Т.К., Alekseyeva V.A.
Organization: State Scientific Research Center n.a. A.I. Burnasyan — Federal Medical Biophysical Center of Federal Medical Biological Agency
Summary:

Now electroshock devices are used as a civilian weapon for self-defense and as a non-lethal weapon in the police. Therefore, medical-biological safety testing of electroshock devices should be carried out. Development of hygienic regulations is relevant as well. The aim of our work is the study of the biological effects of pulsed current depending on the pulse frequency, pulse amplitude and exposure. Material and methods. We compared the biological effects with varying frequency of the current pulse (50, 400, and 600 Hz) with varying exposure (0.25, 0.5 and 1.0 s.). Average pulse power in all cases was equal, and the pulse energy was different. Experiments were performed on rabbits. Biological effects of stun device were evaluated by clinical lesions, as well as electrophysiological parameters: ECG and electro-pneumogram. Results. Response was observed only in the current period (0.25 s, 0.5 s or 1 s) was disorientation, convulsing, dyspnea. The degree of severity of the reaction was determined by a combination of pulse repetition frequency and exposure. Immediately after switching off the current noted vocalization, decreased heart rate and breathing. Heart rate and respiration in 5 minutes back to the normal values. Conclusions. In the results of the research has got a comparative classification organism's response (based on a points system) as well as the characteristic of the biological response of the individual systems of the body on the parameters of the current pulse.

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Biological effects of an impulse current according to laboratory researches of electroshock devices

Year: 2013, volume 9 Issue: №4 Pages: 828-830
Heading: Physiology and Pathophysiology Article type: Original article
Authors: Grigoryev О.A., Koklin А.Е., Lukyanova S.N., Alekseyeva V.A.
Organization: State Scientific Research Center n.a. A.I. Burnasyan — Federal Medical Biophysical Center of Federal Medical Biological Agency
Summary:

The federal law "About Weapons" permits the use of electroshock devices if they are safe for people. We developed requirements for the procedure medical-biological testing on the safety of electroshock devices. We did an experimental study assessing medical-biological safety of electroshock devices. The assessment is based on a point system, which use ranges of biological effects. The experiments were performed in rabbits. We used 13 electroshock devices with different characteristics. Electroshock devices were made in Russia. We found that the response of a biological object to inrush current included convulsions, respiratory and cardiac activity. We analyzed the biological effects of pulsed current electroshock device obtained in experimental conditions. It is concluded that the characteristic clinical and physiological response to the action of electric current is pulsepolyparametric and depending on a combination of characteristics and condition of the electric impulse influence object.

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