31.   That would make it easier to deliver a drug that would mimic the protein, said scientists.

32.   The anatomy of Unenlagia, the scientists said, suggested that flying began from the ground up, without an intervening arboreal gliding phase.

33.   The chemical agents involved include pesticides, insect repellents, nerve gas and the anti-nerve-gas medications taken by many soldiers, said the scientists.

34.   The chemical flame retardant PBDE has begun showing up in alarming quantities in breast milk, say scientists.

35.   The chemical is acrylamide, which, Swedish scientists said last week, is produced when certain carbohydrates are baked or fried at high temperatures.

36.   The computer simulation, scientists said, does not prove that hunting was the culprit.

37.   The differing gene signatures alone told which cells were which, said the scientists.

38.   The need for such a test, the Boston scientists said, is urgent.

39.   The probe continued on its suicidal plunge into the atmosphere until the enormous pressure and heat were great enough to vaporize titanium, mission scientists said.

40.   The social security defeat was significant because it shows the opposition can defeat the government, said political scientist Amaury de Souza.