Aim:To evaluate hidden hearing loss (HHL) in industrial workers using the extended high frequency audiometry(EHFA) and ABR wave I amplitude during routine follow-up visits to audiology clinic identify managehidden as early possible. Materials Methods: This study is comprised of two groups: group which consisted 50 adultindustrial workersattending audio-vestibular medicine for their control 20 a...

objective sensorineural hearing loss is believed to be the result of a physiologic malfunction in the inner ear or acoustic nerve. depending on the rapidity of progression and severity, sensorineural hearing loss can be endlessly annoying, frightening and can constitute a permanent after effect. moreover, there is no surgical procedure that can reverse or lessen the severity of a sensorineural ...

estimation of the amount of soil loss measurement of field indicators is a low-cost method, is easy to learn and can be simply applied. in order to measure and make assessment of soil loss amount by field indicators method in shahrak watershed, first map of the work units was prepared and then, measurements of the relevant field indicators were carried out within these units. then, epm model wa...