1.   Extreme weight loss, known as wasting, long recognized and dreaded as a hallmark of cancer, has puzzled researchers for decades.

2.   Gleevec, the promising new cancer drug already approved for treating some leukemia patients, has researchers cautiously optimistic that it might help fight prostate cancer.

3.   In addition to the main lab on Page Mill Road, Andersen has researchers in Chicago and Sophia-Antipolis, France.

4.   It is the speed with which the invasive plants spread that has researchers shaking their heads.

5.   It is a question that has puzzled researchers, including Darwin, for more than a century.

6.   The bacterium long has frustrated researchers trying to understand how it works because it cannot be grown in laboratory dishes for easy study.

7.   The desire to control time has researchers around the world studying sleep and its mechanisms.

8.   The second launch project will have researchers at MIT, Microsoft, and the National University of Singapore design an educational system for global education.

9.   The set-point idea seems to make sense of longstanding data on happiness that have puzzled researchers.

10.   The state also has a researcher, Harlan, who spent six years developing his map-making methods, Winn said.