Though this downward spiral of violence has generated doubts about any hope for a solution, a wide array of voices -- representing many lands and views -- are now suggesting that renewed American involvement is the key.
While the emergence of new illegal armed groups (NIAGs) and paramilitary successors has generated doubts about the long-term effectiveness of the program, participants to date are less likely to return to criminal activities (18percentthanhanon-participantsts (25percentt).
This risk was sometimes very strongly articulated, and seen as occurring where fathers continued to deny their roles, if information was misinterpreted, or where information generated doubts about paternity of the child.
Climate-change contrarians, though they publish very little in the relevant scientific literature, use the Internet to mount persistent attacks on the I.P.C.C. Being a human enterprise, the I.P.C.C. has certainly made mistakes, and these get magnified by people attempting to generate doubt about the overall body of climate science.
This is often dismissed by realists as generating doubt about unobservables that is no more worrying than doubting other minds or the external world.
The presence of Cx. sitiens in the top left quadrant of Figure 3A indicates that it did not display sufficient within-species variation to generate doubt as to whether it was a single biological entity.
In effect, the practice of subjecting patients to an added respiratory burden to try to improve the sensitivity and specificity of the tests to judge patient readiness for extubation generates doubt as to whether the added burden itself might have caused extubation failure in some patients who would not have failed otherwise.
The scale of these potential liabilities can in turn generate doubts about public finances undermining the resilience of both banks and sovereigns.
But sponsorships are often more costly and more elaborate than conventional ads, generating doubts among some advertisers as to whether they really want to spend the additional time and money.
Nadal's astonishing resurgence comes in an era when great achievement in sports routinely generates doubts and in an era when tennis's antidoping efforts have generated external criticism for not being as aggressive or exhaustive as in other sports.
