21.   As a test of its approach, scientists here have developed a computer model of how yeast metabolizes sugar.

22.   As scientists develop ingenious techniques to detect smaller and smaller cancers, some investigators are voicing a note of caution.

23.   As scientists have developed so-called broilers that grow faster and faster, they have produced chickens that are more vulnerable to heat.

24.   At Seal Cove and Fort Ross, scientists are developing an unusual way to estimate how fast the San Gregorio Fault is moving.

25.   Barnett also suggested that scientists develop a counter pill that would make athletes violently ill if they had been using performance-enhancing drugs.

26.   Before scientists can develop artificial intelligence, they must understand the human variety more fully.

27.   Biotechnology stocks surged after Amgen Inc. said its scientists had developed an experimental therapy for treating obesity.

28.   Biotechnology stocks surged after Amgen Inc. said its scientists developed an experimental therapy for treating obesity.

29.   Besides testimonials, many weight-loss programs that can be purchased in easy installments tout how their plans were developed by scientists after extensive research.

30.   -- Indian scientists have developed a new, safer and cheaper anti-anthrax vaccine that will be available commercially in the next six to nine months, the government said.