51.   Economists who have studied the effects of layoffs in the region caution that it is much too early to determine the impact of the Lucent shakeout.

52.   For Levitsky, who is studying the effects of several herbal supplements, memory-aiding products and mood supplements seem to show the most promise.

53.   German and American scientists studied the effects of pollution in Lake Constance, in Germany, on the small crustacean Daphnia.

54.   Golod spends his spare time traveling the former Soviet Union, erecting pyramids and studying their effects on the surroundings.

55.   He also has studied the effect of bad odors and found that bad odors increase aggressiveness and hamper learning.

56.   Hamburg consultants Eberhard and Wolfgang Schnelle, known as the Quickborner team, study the effect of office settings on productivity.

57.   He served in the Canadian Army in England in World War II as a psychologist, studying the effects of brain injury.

58.   His research covered many areas of experimental psychology, including exploring avoidance learning in dogs and people, and studying the effects of punishment on subsequent behaviors.

59.   I phoned Prof. Alex Molnar, a researcher who has studied the effects of commercialism on children.

60.   If kids were thrown together randomly in schools or neighborhoods, it would be easy to study the effect of growing up with more affluent or brighter peers.