81.   Engineering studies must be done to determine whether Texas Stadium can accommodate the renovations, Stopfer said.

82.   Environmentalists sued, and the federal courts have ruled that environmental studies must be done before construction can resume.

83.   Even though some companies have done small-scale studies on muscle strain and fatigue using their products, none of the keyboards has been analyzed in a medical setting.

84.   Fernandez, a biology professor who has done extensive studies of crawfish in Arizona, was among the biologists and sportsmen who wanted a transport ban across the state.

85.   Few studies have been done on the benefits of such low-level exercise among older people.

86.   Few studies have been done adults, none on teens.

87.   For example, Creaser said, Alaska will allow commercial harvest of a new species only after scientific studies are done.

88.   For one thing, the studies were done in a greenhouse in special soils, with irrigation, fertilizers and fewer plants.

89.   Four years ago, the Ornithological Society did a study.

90.   Geer and his colleagues developed that device without financing, he said, which is typically how studies of female sexuality are done.