Example sentences of "[vb -s] [be] shown [verb] [adj] [noun pl] " in BNC.
Next page| No | Sentence |
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| 1 | DNA supercoiling has been shown to stabilize open complexes formed at several bacterial promoters ( 9 , 23–27 ) , and is known to influence either positively or negatively the activity of many other promoters ( Pruss and Drlica , 1989 ) . |
| 2 | Feedback of information has been shown to change operative procedures in some non-randomised studies but not all . |
| 3 | But suicide has been shown to have important roles in our immune system . |
| 4 | Not only are some birds known to detect infrasound , but one species has been shown to produce infrasonic calls . |
| 5 | Infection of the bitch on a single occasion has been shown to produce transmammary infections in at least three consecutive litters . |
| 6 | Re-employment has been shown to produce measurable improvements in health , but I know of no study of the effects of joining a workfare scheme . |
| 7 | In Australia , following a period of drought the advent of rain has been shown to rehydrate large numbers of apparently desiccated L3 ( anhydrobiosis ) which then become active and rapidly available to grazing animals . |