31.  Santa Clara, Calif.-based Healtheon recently merged with Atlanta-based WebMD in an ambitious effort to create a dominant healthcare service on the Net.

32.  Still, the church is known for its ambitious proselytizing efforts.

33.  Tens of thousands of computer users from around the world are being enlisted to participate in an ambitious effort to detect radio signals from extraterrestrial civilizations.

34.  That is because while Gnome is the most ambitious effort yet to put a simplified face on Linux, it is by no means the only effort.

35.  The alliance marks an ambitious effort to develop electronic commerce on the Internet.

36.  The ambitious effort yields moderate results.

37.  The approach represents a sea change from the Clinton era, in which federal agencies crafted ambitious regulatory efforts.

38.  The controversy, with its roots in the volatile Israeli-Palestinian conflict, and subsequent pullouts deflected attention from the ambitious effort to fight intolerance anywhere.

39.  The disclosure threatens to undermine an ambitious effort to overhaul the deeply corrupt law-enforcement system of Mexico.

40.  The FAA then began an ambitious effort to monitor the safety of foreign carriers flying to this country.