long duration

“We never want to diagnose our friends, but grieving or sadness that results in isolation, withdrawing — if they aren’t eating or stop answering phone calls for a long duration of time — that’s more than sadness, that’s depression,” Black said.

“Interest rates are at levels that, maintained for a sufficiently long duration, will make a substantial contribution,” to returning inflation to the bank’s 2 percent target in a timely manner, the central bank said in a statement.

“We never want to diagnose our friends, but grieving or sadness that results in isolation, withdrawing — if they aren’t eating or stop answering phone calls for a long duration of time — that’s more than sadness, that’s depression,” Black said.

Long duration GRBs are caused by supernovas, the point when a massive star reaches the end of its life and explodes into a burst of light.

"The burst itself actually indicated a long duration event, and it should have been a normal supernova-type situation. But it had unusual features. It didn't quite fit the patterns of long bursts," Hartmann said.