81.   Of course, there have been many attempts to study the effects of welfare, and Democrats cited some of those studies in defending parts of the current system.

82.   Observers were able to study the effects of strong ground motion on multiple examples of virtually every type urban structure.

83.   One is the added complexity of studying the effects of a therapy for cancer among people who have other ailments.

84.   One of the experiments on this mission is to study the effects of space flight on sleep patterns.

85.   Petersen said that he wants to study the effects of air pollution on asthmatics but that he has been told there are no funds to do it.

86.   Rathman said his group had written to Attorney General Janet Reno calling for a ban on the devices until a panel of medical experts studied their effects.

87.   Researchers are currently studying the effects of time-release medicines to prevent heart attacks and sudden death.

88.   Rose is studying the effects of the device on patients.

89.   Scientists can use newer techniques to make mutations in viruses in the laboratory to study the effects of different genes in new ways.

90.   She is now studying the effect of programs aimed at men.