But even noisier than many of these is the maximum output of some portable music players, which can exceed occupational safety levels and produce sound levels in the ear on a par with that of a jet taking off.
Acute noise effects do not occur only at high sound levels in occupational settings, but also at relatively low environmental sound levels when, more importantly, certain activities such as concentration, relaxation, or sleep are disturbed.
Self-reported hearing-related symptoms in relation to calculated occupational noise exposure dose and measured sound levels.
Accordingly, we were also able to detect statistically significant associations between occupational noise index and both tinnitus and sound-induced auditory fatigue in logistic regression models.
However, the assumptions provided by the theory on how to design emotionally sound learning environments for students, and occupational environments for teachers, have yet to be tested in empirical intervention studies.
In addition to increased risk of hearing-related symptoms of cumulative occupational noise exposure, we also found high current sound level exposure, above regulated limits, in the labour ward.
Noise annoyance at work was a common complaint and, in addition to occupational noise exposure, also an important factor for sound-induced auditory fatigue.
People are separated into occupational groups or subsystems: actors, camera crew, lighting crew, sound crew, and so on.
Moreover, all the occupational therapists will receive special training to achieve a sound understanding of the acupoint selection and to normalize the practices across different therapists.
