Global climate change has already had observable effects on the environment.

No observable effects occur when the radiation level is 25,000 millirems or less.

As well it might, since he had already sacked her at least twice with no observable effect.

But at street level the business slowdown and slump in share prices are having little observable effect.

He also took a dose of 100 mg orally himself, without experiencing any observable effect.

Schools must be judged by observable effects in the lives of students like literacy, graduation and attendance rates.

So far, no observable effects attributable to the photon belt have been seen on those dates.

Color is highly subjective, but has observable psychological effects, although these can differ from one culture to the next.

Identical to EC when the observable adverse effect is death.

There never was an actual medical benefit from the plant, which had no observable effect on the throat.