1.   By that time, western New York was undergoing a revolution in transportation.

2.   Pharmaceutical companies are undergoing a revolution as bioengineered yeast cells replace toxic, solvent-intense chemicals to create medicinal drugs.

3.   The feeding of dairy cows has undergone a revolution.

4.   At the same time, health care was undergoing a revolution in the delivery of services.

5.   But their methods have become commonplace as lobbying has undergone a revolution over the past decade.

6.   Educators and administrators say science teaching has undergone a revolution in the four decades since Sputnik.

7.   In fact, asthma treatment has undergone a revolution in the past decade, thanks to new drugs and a better understanding of the role of environmental irritants.

8.   Jobs undergo technological revolutions.

9.   Latin America, for decades the site of political turmoil, is once again undergoing a revolution.

10.   Taking pictures from space is undergoing a revolution, and governments are finding it harder to restrict the distribution of the snapshots they take.