41.   Uncertainty thus remains as high as ever.

42.   Uncertainties remain, cautioned Fritz R. Kalhammer, coordinator of science and technology for the Electric Power and Research Institute in Palo Alto, Calif.

43.   Two uncertainties remain.

44.   Uncertainty remains about the extent of further Israeli withdrawals from the West Bank.

45.   While much uncertainty over details remains, the scientists said, the main outlines of green-plant genealogy and evolution now are clear.

46.   While uncertainty remained the byword for the Italians, Brazil was the portrait of stability.

47.   Yet the uncertainty remains.

48.   Analyst Stefan Loren of Legg Mason said uncertainties remain about those synergies, however, since they entail folding a German-run research organization into an American one.

49.   As there has been no full commitment so far, uncertainty remains for all troubled currencies, including the baht.

50.   But campaign aides from both parties said the results suggest uncertainty remains over whether the Republican Party will maintain control of Congress.