United has been investigating significant potential changes to its corporate structure.

By interviewing young children, and asking them to explain story characters' actions, the project aims to investigate changes in children's psychological explanations of action.

Studies are also investigating changes in the nature of social networks and in family relationships during continuing unemployment.

However, this study didn't investigate changes in crash severity as the 2005 Montana study.

The life science experiments investigated changes in plants, animals and humans under spaceflight conditions.

Some researchers have investigated changes in groundwater radon concentrations for earthquake prediction.

At various times the U.S. government has investigated changes to the accreditation system.

He also investigated changes in mores brought about by American influence.

The idea is to investigate changes in variability with age.

A leg and foot rotation test can be used to investigate changes in neuron activity within the labyrinth, or the inner ear.