21.   These ideas were to prove fruitful in the longer term, but their immediate practical impact was small.

22.   While this growth is less spectacular than that of the past few years, the cumulative impact is significant.

23.   The most immediate impact would be on transport, through the creation of a national rail freight corporation and a national registration and taxation scheme for heavy vehicles.

24.   Then there could be an impact on the material taught in a more dynamic way.

25.   And its impact is set to reverberate around theatreland for some time to come.

26.   It is already evident that new roads only generate new traffic, and the environmental impact is an absolute disaster.

27.   However, even if its impact has been modest, interactive video has at least helped to establish the effectiveness of multimedia.

28.   The merger with the CBSI should slow down the fall in membership and thus the subscription base, though the eventual impact on reserves is hard to forecast.

29.   The impact was sickeningly loud even to me.

30.   In assessing the value of treatment, the impact on quality of life is just as important as duration of survival.