41.   After a brief period of promise, unity among the rebels went out the window.

42.   Afterward, she spent a brief period in a mental hospital.

43.   Already, the Xerox team has used this approach in the laboratory to increase more than fivefold the strength of a model column for brief periods.

44.   Bringing market forces into play makes life better after a brief period of adjustment, according to the financial journals I read.

45.   But after a brief period of calm, sectarian attacks once again are becoming routine.

46.   But hot money and quickly evolving technology are creating opportunities for the right people with the right ideas to amass huge paper fortunes in unthinkably brief periods of time.

47.   But the museum placard says that modern crocodiles leave similar nests containing both hatchlings and adults, even though crocodiles guard their young for only very brief periods.

48.   But these brief periods of wakefulness can become a nasty problem if something is troubling us.

49.   But they never found a rhythm except for a brief period in the second quarter when Shawn Bradley led a spirited comeback.

50.   But there were numerous discrepancies, Feingold revealed during a relatively brief period on the stand Friday afternoon.