41.   She was updating a library Web page and was about to start her shift on the reference desk, where she would continue to work on the Web site.

42.   Shifts on a car with an automatic transmission are based on specific ratios between the speed of the engine and the speed of the vehicle.

43.   Stately currents in the North Atlantic undergo periodic shifts on decadal time scales.

44.   Tashjian blames the shift on a lack of distinction among major department stores.

45.   The action by Moses earlier this month may signal a major policy shift on AIDS education.

46.   The Angels were using a dramatic infield shift on Delgado with the third baseman Glaus closer to second base, so Delgado squared to bunt.

47.   The change is more than a shift on paper.

48.   The dramatic shift on the ground in Colombia in recent days may lead to a reassessment of the policy on Capitol Hill.

49.   The Japanese shift on market reform and deregulation is so far mostly verbal, U.S. conference participants said.

50.   The Republican-dominated House, meanwhile, deserves praise for its surprising doctrinal shift on the farm bill.