asbestos applications were limited during past two decades in developed nations due to its debilitating health problems, while in developing countries it’s various usages continues. the main goals of present study were evaluation of asbestos concentrations in ambient outdoor and indoor air and occupational exposure, as well as exposure effects on pulmonary function. sampling procedure was ca...

The results of a number of studies indicate that prelingually deaf children raised in a spoken language environnent appear to have difficulty in understanding and retelling stories. Various explanations have been offered: story understanding may be impaired by lack of background knowledge and vocabulary; the lack of access to the phonology of spoken language may reduce the capacity of short-ter...