A 2011 report on crime in the city, prepared by university researchers with support from the Justice Department, expressed frustration that conventional prevention tactics had proved only so effective.
In a motion filed Monday, he said prosecutors had proved only that KB backdated options -- not that Karatz intended to deceive shareholders.
Counseling to effect lasting change in health behaviors has proven only moderately effective.
For all his talk about having proven himself, Sugar Ray Leonard has proven only that the Gerry Cooney syndrome is contagious.
Regulation, he said, has "proven only partially successful in dissuading individuals from playing with the rules of accounting".
But the facility has proven only half-successful, never becoming the transformative model for broader market-economy reforms that some South Korean officials once hoped for.
And efforts to legislate a binary truth upon the wide spectrum of gender have proven only how elusive sexual identity can be.
This rings true -- the use of military force has proven only sporadically effective for international issues.
This resistance extends to efforts to develop vaccines against TB, which so far have proven only modestly effective at best. .
The Commerce plant, they say, which was built as a showcase of waste-to-energy technology, has proven only that incinerators cause serious pollution problems, and the opponents say they will never allow another incinerator plant in southern California.
