We can send a powerful signal that there are other considerations involved.

"It sends a very powerful signal to the president," she said.

Its principle is quite simple: to make a first detection of the most powerful signal.

It can send a powerful signal - or lead the way to certain disaster.

The new hotel culture may be the most powerful signal yet devised to tell visitors they have come to a different place.

From somewhere deep inside her came an ancient and powerful signal of distress.

"And it will send a powerful signal that we mean business."

An agreement on the start of a new round will thus give the world economy a powerful and positive signal.

It will give a powerful signal to the research community that we can carry out our business and have the legislation in place on time.

Over the years its powerful 50,000-watt signal could clearly be heard throughout much of California.