11.   Gibble and Chu are not distressed by the discrepancy, because there is fair uncertainty in the interatomic potentials that are used in the calculation.

12.   Recession in the U.S.A. has run its course and left an aftermath of uncertainty in its wake.

13.   The amount of the contingency sum should reflect the degree of uncertainty in the definition of the project and the firmness or otherwise the budget.

14.   However, the Panel will not allow an offeror to rely on a pre-condition indefinitely as this creates uncertainty in the market.

15.   Briefly his gaze rested on Rachel and she saw the flicker of uncertainty in his eyes but there was no time for questions.

16.   The grey-green eyes were very intent on the shadowy uncertainty in hers.

17.   She caught her breath, touched by the uncertainty in his eyes.

18.   Although the government is moving ahead rapidly on smallpox, it is mired in uncertainty in procuring anthrax vaccines.

19.   American analysts attribute the tough talk to political uncertainty in Beijing.