Dynamic Spectrum Access (DSA) is a technology that senses the unused ‘free' but allocated portion of the radio frequency spectrum on a non-interfering basis. These unused bands are also known as ‘holes' or ‘white spaces'. DSA also refers to the time-varying, flexible usage of parts of the...

This study was conducted to identify the challenges of information technologies on secretaries in the Federal Polytechnic Bida, Niger State, Nigeria. The study was embarked upon to emphasize the importance or significance of secretaries as they face the challenges of the information technology...