Example sentences of "[vb -s] now been shown " in BNC.
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1 | It has now been shown that Ramsay continued to develop and refine his style until an injury to his painting arm in March 1773 prevented him from further work . |
2 | It has now been shown that the number of male carers has increased substantially . |
3 | It has now been shown that variation in relative growth rates can be added to the list ( Burdon & Harper , 1980 ) . |
4 | This pattern of impaired fetal growth has now been shown to be linked to cardiovascular disease . |
5 | It has now been shown by several laboratories that ingestion of fibre causes an increase in cellular proliferation in the colon of rats . |
6 | Preconditioning with brief periods of ischaemia has now been shown to increase the heart 's resistance to infarction in numerous species , including rabbit , rat , and pig . |
7 | Until recently it was assumed that they all persisted as adults , but is has now been shown that the chilling of infective larvae before administration to calves will produce arrested L5 ; hypobiosis at this stage has also been observed in naturally infected calves in Switzerland , Austria and Canada , although the extent to which this occurs naturally after ingestion of larvae in late autumn and its significance in the transmission of the infection has not yet been fully established . |