The precipitating factor was a similar case at Shanghai's Fudan University a few weeks ago.

WSJ: Review & Outlook: A Chinese Search for Justice

Mr. BUCHBINDER: Yeah, I think that the 2005 changes to the Constitution are definitely precipitating factor.

NPR: Chad Conflict Stirs Global Response

Then any precipitating factor undermining the trade can lead to profit taking at the margin.

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We believe that the precipitating factor for the conflict was the rocket fire coming out of Gaza.

WHITEHOUSE: The White House

"YouTube was a big precipitating factor in that, " he says.

CNN: , for

They are also probably a precipitating factor in the kind of provocative statements and diversionary tactics that the Iranians have used to try to change the subject from the fact that they will not abide by their international obligations, and that is why they are the subject of this kind of pressure and this kind of isolation.

WHITEHOUSE: Press Briefing