[The biological action of physical factors in the critical periods of embryogenesis]. / Biologicheskoe deistvie fizicheskikh faktorov v kriticheskie periody émbriogeneza.

The critical period in a chicken embryonic development (the 10-13-th days of incubation) is revealed under total electromagnetic radiation. This external factor is a physiologically active irritant which can influence functional state of the brain. The increased absorption of electromagnetic energy takes place in this incubation period. Its dynamics within 20 days of embryonic development has phasic, up and down character. Electromagnetic exposure (4 hours a day daily) in the above mentioned period evokes a delay in embryo adaptive motor behavior (biofeedback learning). Morphological investigation shows significant pathological changes--destruction of share brain synapses. The delay in embryo hatching for a day is also detected. Radiation exposure within other periods of incubation (3-6-th or 12-15-th days) was not effective with respect to formation of normal motor pattern in biofeedback experiment.

[The physiological problems of biofeedback control by the heart rate]. / Fiziologicheskie problemy bioupravleniia s obratnoi sviaz'iu po chastote serdechnogo ritma.

The data on voluntary regulation of the heart rate in humans is given in respect to individual-typological differences of adaptive abilities, ecological specifics of ambient environment and labour, health condition (neuroses, vegetative-vascular dystonias etc.). A major role of training of the rhythmic regulatory processes for the biological feedback control, is corroborated.

Biofeedback control of systemic arterial pressure.

The central mechanisms and possibilities of biofeedback of the systemic arterial pressure have been investigated in experiments on cats, rabbits, and rats. The adaptive processes were followed in association with minimization of electrodermal reinforcement during the development of shifts in relation to the level and bioelectrical structure of the AP, as well as the impulse activity of hypothalamic neurons.

[The effect of microwaves on the neuronal activity of the hyperstriatum in chick embryos at the critical developmental period]. / Vliianie mikrovoln na neironnuiu aktivnost' giperstriatuma kurinykh émbrionov v kriticheskii period razvitiia.

Studies have been made on multineuronal activity in the dorsal hyperstriatum of chick embryos exposed to microwave radiation (2.375 MHz) at critical stage of development of the structure (19th day of incubation). One day after microwave exposition, activation of neurones was observed in a form of the increase in the discharge frequency and the increase of outburst form of the activity. Cyclic form of outburst activity was absent in experimental animals being present in control embryos of the same age and associated presumably with self-organization of microsystems of neurones in the developing brain. Changes in multineuronal activity were found only in the left hyperstriatum, which is probably due to different levels of the development and functional activity of the right and left hyperstriatum at this stage resulting from asymmetric intensity of visual afferentation which depends on the position of embryo inside the egg.

[Surgical treatment of habitual dislocation of the shoulder]. / Operativnoe lechenie privychnogo vyvikha plecha.

In the article is presented the analysis of treatment of 32 patients with shoulder joint instability. There have been studied the outcomes of treatment after the arm "suspension" operations, interventions at the anterior region of an articulation, derotational osteotomies of an arm. There have been considered the problems of etiopathogenesis of shoulder joint instability. There have been analyzed the peculiarities of the tactical approach to the treatment of patients with shoulder joint instability. There is presented the principled position of the authors' approach to the selection of pathogenetically substantiated method of the habitual shoulder slip operative treatment.

[The effect of microwave irradiation on the peroxide modification of low density lipoproteins in human blood serum]. / Vliianie mikrovolnovogo oblucheniia na perekisnuiu modifikatsiiu lipoproteidov nizkoi plotnosti syvorotki krovi cheloveka.

In experiments in vitro the electromagnetic field of 2375 mHz, 500 microW/cm2 was shown to influence peroxide modification of low density lipoproteids. It was also shown that this modifying effect was prevented by high density lipoproteids that decreased the level of lipid peroxidation.

[Various prerequisites for performing the Sach-Weber operation in anterior instability of the shoulder joint]. / Nekotorye predposylki primeneniia operatsii Sakha-Vebera pri perednei nestabil'nosti plechevogo sustava.

The authors present a preliminary analysis of the treatment of the patients with anterior instability of the shoulder joint who were given surgical treatment consisting in subcapital rotation osteotomy of the humerus and tendinous-capsular plasty of the anterior portion of the shoulder joint. The surgical technique and the indications for the operation are presented.

[Systematic analysis of the state of man exposed to radio wave irradiation for a long time]. / Sistemnyi analiz sostoianiia cheloveka pri dlitel'nom radiovolnovom obluchenii.

A complex examination was made of 72 men--short-wave (3-30 MHz) radio equipment controllers. Two parallel control groups of 70 people all in all were examined. No regular changes in the dynamics of amplitude-frequency characteristics of electroencephalogram, associated with the length of service, were observed. The number of subjective complaints from people in contact with radiofrequencies increased with an increase in the length of service. The role of certain clinico-physiological parameters of the organism in the process of adaptation to electromagnetic radiation was quantitatively assessed with the use of status-metry technique; in particular, a decrease in the functional activity of the right hemisphere brain structures, aggravating with the length of service, was observed.

[Experimental analysis of biological effects of microwaves: their systemic, ultrastructural and neuronal mechanisms]. / Eksperimenta'lnyi analiz bioéffektov mikrovoli: sistemnye, u'ltrastrukturnye i neironnye mekhanizmy.

For 200 hours the cats were exposed to microwaves of 2375 mHz, the energy current density being 500 mWt/cm2. 6 diversions of the electrocorticogram and multi-cellular activity were registered by coal electrodes. After the exposure an electro-microscopic study of the lateral hypothalamic brain field was carried out. Under the radiation effect synchronization of slow bioelectric activity over the range of 6-10 to 12-16 took place. The analysis of the conditional probability matrix of series generation of action potential in the studied structures demonstrated their functional separation according to multi-cellular activity parameters in proportion to exposure growth. Damage of axodendritic synapses which provided morphologic links between brain structures was considered its morphologic substrate.

[Cumulated biological effects of microwaves and their reflection in behavior, work capacity, growth of body mass and state of brain neurons]. / Kumuliatsiia biologicheskikh éffektov mikrovoln i ee otrazhenie v povedenii, rabotosposobnosti, priroste massy tela i sostoianii neironov golovnogo mozga.

Albino rats were exposed to 2375 mHz microwaves of 500 microW/cm2 for 169 h. At the time of exposure, the body mass growth diminished, the efficiency and vertical motor activity decreased in exposed animals in comparison with the controls. Three types of radiation-induced damages were found in the brain: chromatolysis, pyknosis, and ischemia. Different brain parts displayed different sensitivity depending on their location in relation to transverse sutures of the skull.

[The biorhythmological mechanisms of the adaptive self-regulation of functions: the connectedness and cyclicity of intercomponent and intersystem interactions]. / Bioritmologicheskie mekhanizmy adaptivnoi samoreguliatsii funktsii: sviaznost' i tsiklichnost' mezhkomponentnykh i mezhsistemnykh vzaimodeistvii.

The paper summarizes studies carried out in the Dept. of Ecological Physiology of the Inst. Exptl. Med. and stemming from the D.A. Biriukov works. Biorhythmological basis of the mechanisms of adaptive self-regulation of functions is revealed. This enables to evolve new approaches to estimation of individual human adaptive features and of the ways of functional nonpharmacological correction of functions by means of the feedback biocontrol of neural, vegetative and somatic functions. The results of the studies have advanced human psychophysiology and found some practical application in medicine.

[Cyclic interactions in the processes of adaptation regulation]. / Tsiklicheskie vzaimodeistviia v protsessakh adaptivnogo reguli- rovaniia.

Human adaptation is characterised by essential changes of functional systems biorhythms which appears in the changes of their components' sequence and in the dynamics of biorhythmological cycles. These objective laws, having been described for human EEG, allow to discern clearly the individual-typological peculiarities in man with different stages of adaptation, the same as the adaptive shifts during long-term influence of external factors. The cyclic course of adaptative processes is regarded as a measure of adaptability. With the help of biorhythmic multitude the memory is constantly satiated from the brain by discrete portions of adaptogenic information, which prevents the natural processes of the memory disintegration.