The engineering professor Vijay Kumar had previously demonstrated his coördinated swarming robots.
Dr. Yamanaka had previously demonstrated this technique in mice, after which other scientists also began pursuing it in human cells.
Skeptics had previously demonstrated that almost anyone can cross fifteen or twenty feet of live coals without burning his feet.
David had previously demonstrated his all-star potential in baseball, having made the travel team last summer.
After Yusof began wearing the head scarf, she told me, some magazines that had previously demonstrated great interest in her stopped calling.
To many Americans, the massacre exposed the consequences of unchecked corporate might, and it roused the conscience of a country that had previously demonstrated impassive ambivalence toward organized labor.
He added that a deliberate hack of an electric generator at the Idaho National Laboratory, via the internet, had previously demonstrated that infrastructure could be persuaded to destroy itself.
Dr. Corbett said the extra effort, above and beyond what the athletes had previously demonstrated, seems to come from the anaerobic energy system, one that is limited by the amount of fuel stored in muscle.
We had previously demonstrated that activation of the brain microvasculature is an early event in an animal model of sepsis.
The objective was to conduct comparative evaluations of vaccines that had previously demonstrated efficacy in other animal models.
We had previously demonstrated that VA-SiNWs could be realized with top-down wet chemical etching using a thin silver film as the catalyst [17].
