Its precise effect on the immune system, as with any cytokine, is far from clear.

It meant, simply, weapons with the most precise effect conceivable.

Therefore, the precise effects and potential influence are yet to be well explained.

But he said the city was still waiting to judge the precise effects of cuts in state aid and other uncertainties.

The precise effect of any Federal legislation on litigation is uncertain.

The second aroused more positive interest, though it is unclear with what precise effect.

The precise effect of the layoffs on services is speculative.

The precise effect depends on whether the water that was locked up is able to drain off.

Indeed, its precise effects will remain unknown until this summer, when state environmental officials use it to write specific new regulations.

That is the general idea, although the precise effect of turbulence has been little explored.