In scientific research, controls are employed as standards. By separating the control from the samples exposed to an experimental condition, such as the introduction of an analyte, the effects of the ...

Over 500 years ago, Europeans began coming to the New World in growing numbers largely because of its rich resources. The Americas, of course, had already been populated by Native Americans for ...

Have you ever wondered why some people lash out? Is that tendency for aggression something they're born with, or could it be influenced by observing others? It's a question that's long been on the ...