1.   Jazwinski is working to isolate longevity genes in yeast.

2.   Now Lin has moved on to the next project, working to isolate new genes involved with the immune system and the formation of blood vessels.

3.   During numerous visits to Burundi, U.S. officials have said the United States would work to isolate any regime that came to power by force.

4.   Under the Clinton administration, the United States has actively worked to isolate Iran internationally but without much success.

5.   Beijing views Taiwan as a province of China and has worked to isolate the island internationally, while refusing to normalize relations with any country that diplomatically recognizes Taiwan.

6.   The announcement capped days of heightened tensions in Bujumbura that had prompted warnings from Washington that it would work to isolate any government that came to power by force.