Brain scans have shown for the first time that subliminal advertising can be an effective means of getting a sneaky message across.

It was a very effective means of dealing, inter alia, with the expanding collection.

Evidence has been growing that shows cash transfers to be an effective means of helping the poor.

But it also offers an effective means of sharing positive messages.

Working with other schools is an effective means of staff training, and academies for secondary pupils will benefit if their feeder schools improve their standards.