1.   If the heart begins to fibrillate, or beat ineffectively, it generates a powerful electric jolt.

2.   Kennedy then made a journey to China himself, giving the process another powerful jolt.

3.   Their month of offensive slumber seems to be over, with Burnitz providing a powerful jolt Wednesday.

4.   Within seconds, a device in his chest put out a powerful electric jolt, knocking his heart back on track.

5.   Abdullah said powerful jolts continued through the day.

6.   Even as Japan struggled to cope with an earthquake that shattered a western port city, quake watchers warned that more powerful jolts could be on the way.