11.   Drugs will be safer, and more tailored to treat specific diseases with fewer side effects, scientists said yesterday at an international meeting of technology experts in Seattle.

12.   Early in the history of the solar system, so many comets and other bodies were colliding with planets that debris was being exchanged frequently, the scientists said.

13.   Eighty percent of Hispanics in Texas are U.S. citizens, while in California half of Latinos are not, said political scientist Pachon.

14.   Even so, some people apparently are genetically programmed to be more or less sensitive to pain, said other scientists, commenting on both animal and human research.

15.   Fitzgerald said scientists and rangers are relieved to solve the mystery.

16.   Flying insects have elastic mechanisms in their wings that store and release energy, allowing them to minimize the tremendous effort needed to sustain flight, scientists said Thursday.

17.   If human trials prove successful, a patient must want to quit the addiction, the scientists said.

18.   If meteorological conditions in the South Pacific persist, Southern Californians may have El Nino to blame for foul weather starting this fall, scientists said Thursday.

19.   If it continues to shrink at this rate, say scientists, the Arctic Ocean could be virtually ice-free in summer by the middle of the century.

20.   In fact, many of the newborns were not even touched by their mothers, said the scientists.