41.   These packages use agents to update you when sites have changed or download from sites during off-peak hours.

42.   They use agents as screeners.

43.   Today, software agents are used to provide information, compare pricing and even accept orders.

44.   Until recently, players mostly used their agents to negotiate contracts with teams and manage endorsement deals.

45.   When it reaches the heart, chemical agents are used to bring the heart to a temporary stop.

46.   When negotiating with Yates, Irvan said, he did not use an agent to do the talking.

47.   Why use an agent when the system in place dictates the maximum a player can receive?

48.   A top Interior Ministry official, Eduard Lintner, said informants and undercover agents would be used to obtain better information on the group.

49.   Antibacterial agents also are used in toothpaste as well as in cleaners for fabrics, rugs, kitchen counters and toilet bowls.

50.   And the airline is adding more machines for self-service electronic check-in and using roaming agents with hand-held personal computers to check in passengers without baggage.