But my principal focus became the effects of environmental factors on our health.

Language was a principal focus of legislation at the state and local level.

Since 2003, however, composition has become a principal focus of his career.

Block 2 was the principal focus of the German assault.

His principal focus has been on the connections between Russian literature and music.

But the principal focus for freight traffic was the goods station.

His principal focus during his tenure was the war effort.

A. The principal focus of our work is documentation.

At the White House the drought has become a principal focus of activities this week.

Drexel, which is known to be a principal focus of that investigation, was not indicted.

It makes the hypothesis that unity between Christians should be a principal focus for the way ahead.

The technique has been a principal focus of investigations into the October stock market plunge.

The principal focus here is not, as in so much recent autobiography, revelation or reproach.

The principal focus of this journal is theoretical statistics.

However, Surrey was not the principal focus of any of these families' interests.

The principal focus was economic growth underpinned by better infrastructure, lower taxes and less red tape for business.

The question has also become a principal focus of negotiations with actors being asked to participate in re-releases.

Its principal focus is on the development and application of advanced computational methods for biological problems.

"The principal focus of Christopher's contacts with the parties has been to end the violence, to have the attacks cease,"the official said.

A principal focus or focal point is a special focus:

Different, first of all, because the shape of the new Europe, not arms control agreements or ideological argument, will be its principal focus.

But the principal focus for now must be helping the Shiites and their senior clergy, our strongest allies in the country.

The principal focus of this research is the major regulatory arena of occupational health and safety.

Although the principal focus was straight plays, he revived the melodrama - a play with incidental music.

Their principal focus was an attack on the episcopacy of the Anglican Church.