background noise exposure is known as a risk factor for hearing loss and one of its effects is noise-induced stress. cortisol as a stress hormone is used in noise-induced stress assessments. objectives the aim of this study was to measure and compare saliva cortisol concentrations in the morning and evening in normal work day and rest day in both case and control groups and to assess the associ...

The noise immunity of radio communication systems based on IEEE 802.15.4–2020 and 802.15.4z–2020 standards under interference effect variable-duration impulse is investigated. simulation model a channel for estimation the bit error rate with different parameters developed using MATLAB. estimates standard modes taking into account structure transmitted data are obtained. comparison between chara...

conclusions due to the long exposure to the loud noise during the day, hearing loss in drivers is significant. the left ear displays greater loss than the right ear. therefore, strategies to prevent hearing loss in drivers could include education, lifestyle changes and compliance issues related to hearing health, use of personal protective equipment, conducting periodic examinations and early t...