Today management and true performance of copyright and related rights has an important effect on improvement and success of cultural industries of countries. Collective management of copyright and related rights is a system that authors and right holders of works authorize a collective management organization (society) to manage and perform their rights such as monitoring uses of works, negotia...

This study was aimed to assess grip strength of elderly people in nursing homes in Tehran. These elderly people were 60 years old or above, with no orthopedic and neurologic problem in upper extrimity and they were able to perform basic activities of daily living. 109 elderly people(56 women, 53 men) were selected with stratified sampling design from four areas(North, South, East, W...