Mikhail Trifonov

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The mechanisms regulating the functional state (FS) of the brain were studied in humans in conditions of dosed acute hypoxia (breathing a mixture of 8% oxygen in nitrogen for 15–25 min). The dynamics of the FS of the brain due to changes in the balance of the activities of brain regulatory structures in hypoxia were reflected in rearrangements of EEG(More)
The first-order temporal structure functions (SFs), i.e., the first-order statistical moment of absolute increments of scaled multichannel resting state EEG signals in healthy children and teenagers over a wide range of temporal separation (time lags) are computed. Our research shows that the sill level (asymptote) of the SF is mainly defined by a(More)
Regulation mechanisms of the brain functional state (FS) were studied in man during acute hypoxic conditions (inhalation of 8% O2 hypoxic air for 15-25 minutes). Changes in balance of the brain regulatory structures activities caused by hypoxia determine FS dynamics that is reflected in the reorganization of the EEG spatial interrelations (by data of factor(More)
Condylar fractures present a significant management problem for the surgeon dealing with maxillofacial trauma patients. The main problems in the treatment of the dislocated fractures of the condylar process are: dislocation of the condyle, the delicate operative technique and difficult reposition of the condyle. The authors report a case of fractured and(More)
The authors studied 100 patients with salivary gland adenomas for a period of ten years (from 1989 to 1999). Different types of adenomas regarding their glandular localization, clinical presentation, the age and the sex of the patients were studied. Different diagnostic methods were applied: medical history, clinical examination, sonography, scintigraphy,(More)
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