Various scientists, inventors, and experimenters began to investigate wireless methods.

The group investigates legitimate methods of bringing 'Wiseguy' language into mainstream media.

Several research studies have investigated methods of motivating participation in online communities.

Creditors have more recently begun investigating less forceful methods for collecting debts from customers.

Around 1980, Hassan began investigating methods of persuasion, mind control and indoctrination.

This group investigated educational methods, the nature of science, and similar subjects.

This led him to investigate methods of controlling blood pressure.

He visited continental Europe to investigate methods of language teaching in 1912 and 1913.

The project has investigated several methods in order to charge the sender as payment.

Many studies have been performed investigating psychosocial methods of helping children cope with their fear.