21.  The Japanese yen keeps falling, affecting business, trade and tourism in increasingly powerful ways.

22.  The next step is to come up with more powerful ways of doing the search itself.

23.  There is no more powerful way to portray atrocities than to shoot them, foursquare, with the impartial eye of a camera.

24.  This means that the most powerful way to change the behavior of your boss is for you to change the behavior of the topside leaders.

25.  Tracking mutations is a powerful way of constructing family trees.

26.  World history is a powerful way way of telling the world where it is going.

27.  Now anti-smoking forces have seized on that finding as a potentially powerful new way to get people to kick the habit.

28.  What can work against you can also work for you in a powerful way.