[Dynamics of vowel acoustic space indicators in patients with long-term hearing loss].

Unlabelled: New procedure of vowel acoustic space (VAS) (of vowel acoustic triangles) transformation for the purpose of characterization of vowel production in individuals with long-term hearing loss (HL) was developed.

Objective: To characterize VAS of adult Russian speakers with long-term HL using newly developed acoustic indicators.

Material And Methods: Recordings of sustained Russian cardinal vowels /a/, /i/, /u/ of 10 women and 10 men with long-term HL were acoustically analyzed.

PSYCHOLOGICAL STATE AND TYPOLOGICAL PERSONALITY FEATURES OF CHILDREN RESIDENTS OF RADIOACTIVELY CONTAMINATED TERRITORIES IN THE REMOTE PERIOD OF CHORNOBYL СATASTROPHE.

Objective: To evaluate the psycho-emotional state of children-residents of radioactively contaminated territoriesand to characterize the typological features of their personality in the remote period of the Chornobyl catastrophe.

Materials And Methods: Psycho-emotional status and typological personality traits were determined in 96 childrenaged 12 to 17 years, who resided in radioactively contaminated territories with a soil contamination density of 137Csabove 185 kBq/m-2, and were admitted for examination and treatment in the pediatric departments of the NRCRMclinic. Psycho-emotional state of children was determined using the test «non-existent animal», which was assessedin points on symptom complexes: anxiety, aggression and neuro-mental exhaustion.

[Effect of chemical carcinogens on the synaptic transmission of excitation in the sympathetic ganglia of rats].

Acute experiments on rats were performed to study the influence of water-soluble chemical carcinogens on synaptic transmission via the inferior mesenteric sympathetic ganglion. Synaptic transmission was studied before and after intravenous injection of the enterotropic carcinogen 1,2-dimethylhydrazine (DMH) and N-nitrosomethylurea (NMU) which induces the development of mammary gland tumors. Despite the different chemical structure and specificity of the action of the carcinogens used on one or another target tissue, their influence on synaptic transmission via the sympathetic ganglia was of identical character, manifested by the blocking action on transmission of nerve impulses.