41.   Despite some personnel changes over the years, the group is returning to the forefront.

42.   Dust or chemical changes over the eons in the stars could also have dimmed the supernovae.

43.   Evolution usually occurs through several small genetic mutations that create gradual changes over long periods.

44.   Frito Lay has one featuring recently ousted governors Ann Richards of Texas and Mario Cuomo of New York, ruminating about change over a bag of tortilla chips.

45.   He will try to make a case for change over status quo, emphasizing mood over detail.

46.   However, what pleases the eye of the beholder and intrigues the hand of the chef changes over time.

47.   I think those who work with me most closely would agree that there have been some changes over the years.

48.   If Rodman joined the Lakers, it could set in motion other roster changes over the next month.

49.   In addition, Lave said, cities change over time -- business centers shift, for example -- but rail remains fixed in place.

50.   In practice, mitochondrial DNA has steadily accumulated changes over the centuries because of copying errors and radiation damage.