Example sentences of "[verb] now shown that [adj] [noun] " in BNC.
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| 1 | Since aerial photography of cropmarks has now shown that such sites are widespread , particularly beneath a number of later hillforts and in numerous river valleys , most parts of southern Britain may well have been within the territory of , and exploited by , one or other of these sites in Neolithic times . |
| 2 | Scientific analyses have now shown that certain protein and mineral deficiencies can cause developmental problems in growing youngsters and decreased performance in working horses . |
| 3 | But Gronet and Lewis have now shown that non-aqueous solvents can give good efficiencies . |
| 4 | But other workers have now shown that retinoic acid is actually present in the limb , and its concentration is graded in just the right direction . |
| 5 | Many studies have now shown that this sort of regimen improves total serum cholesterol and LDL levels in both insulin-dependent and non-insulin-dependent diabetics in the short and long term ( Simpson et al , 1979a , b ; Dodson et al , 1981b ) . |