Build your teenager's self-esteem by concentrating on the positive aspects of his life and keeping communication open.

His book therefore concentrates heavily on the military aspects of Alexander's life.

In 1980, he started a private practice, teaching professional and amateur athletes how to improve their performance by concentrating on the mental aspects of competition.

After joining the geological survey in 1951, she concentrated on the military aspects of geology.

It was edited down to 300 pages, concentrating mostly on the sensational aspects of their relationship.

He concentrates on the negative aspects - reasonably enough, in present circumstances.

How about concentrating on the positive aspects every so often?

Instead, we should concentrate on the practical, material aspects of the issue.

We must concentrate on the positive aspects without trying to find easy scapegoats; that would not be fair.

Never mind, right now we'll concentrate on the mechanical aspects.