1.   By then the existence of the oncogene was confirmed by others and it was clear that vaccines could be developed to prevent tumors.

2.   So, deck sealers were developed to prevent the splits, spalls, and splinters.

3.   Techniques are also being developed to prevent cross-pollination.

4.   The drug was developed to prevent blood clots that can lead to heart attacks.

5.   The software would be similar to that IBM has already developed to prevent cell phones from ringing during tricky driving maneuvers, Zadrozny said.

6.   A group of researchers claims to have defeated four different technologies being developed to prevent computer users from listening to copyright music for free.

7.   A group of researchers claims to have defeated four different technologies being developed to prevent computer users from listening to copyrighted music for free.

8.   The strategy was originally developed to prevent Warsaw Pact forces from invading western Europe, a threat which no longer exists.

9.   The strategy was originally developed to prevent Warsaw Pact forces from invading western Europe, a threat which no longer exists, Fischer said.

10.   Competitors were also angered that Microsoft would announce that it was releasing software before it was developed to prevent users from buying similar software developed by competitors.