[The clinical aspects of occupational sensorineural impairment of hearing of the acoustic origin].

The objective of the present study was to elucidate the specific clinical features of occupational sensorineural impairment of hearing (OSNHI) depending on the origin of this pathology, viz. noise, infrasound and/or their combination. The review of research concerning this problem made it possible to systematize variants of ODNHI based on the clinical signs taking into consideration the influence of these physical factors.

[Fundamental and applied aspects of preventing the adverse effects of aviation noise].

In the article, aviation noise is discussed as a harmful physical factor with ecological, hygienic, clinical and social implications. Noise contributes to development of general and occupational pathologies, chronic diseases, and reduction of professional longevity. The present-day knowledge of aviation noise sources and dynamics, and effects on environment, population, and aviation personnel is overviewed, as well as strategies to prevent noise consequences, muffling techniques being the key ones.

[The potential of tone audiometry for the determination of the sound-absorbing properties of various materials].

The objective of the present work was to experimentally estimate the potential of the tone audiometry technique for the determination of the sound-absorbing properties of various material. The study included 15 subjects at the age from 19 to 32 years. Their audiological examination was followed by the placement of the 5×7 cm spacer plate from the study material beneath the bone vibrator telephone to determine the bone sound-conduction threshold; no air-marking was undertaken.

[The problems of assessment of the high noise impact on the experts of the Air Force].

Air Force specialists are exposed to high intensity noise levels exceeded the maximum permissible levels. Infrasound as a productive factor in accordance with the general technical requirements (OTT) Air Force-86 is not included in the list of standardized factors. The adverse acoustic environment makes the risk of occupational (sensorineural deafness) and professionally-related diseases of the nervous and cardiovascular systems.