Example sentences of "[been] found to [be] the " in BNC.

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1 It is the effort and pressure which the bowel-wall muscle has to exert in propelling onward the firm faeces produced by a Western diet ( rather than the soft and voluminous matter produced by fibre-rich diets ) which has been found to be the cause of this illness .
2 JB-4 ( Polysciences ) , a water-soluble resin , has been found to be the optimal embedding medium .
3 At Ingoldmells , to the north of Skegness , heaps of debris have been found to be the result of salt-workings in the late Bronze Age .
4 The multiplication of agencies as a means to greater bureaucratic efficiency may be objected to on the grounds that one of the major obstacles to the successful implementation of government programmes has been found to be the existence of numerous competing administrative bodies which so many programmes seem to involve because of overlapping policy fields and jurisdictions ( Gunn 1978 ) .
5 Hae III followed by Hind III have been found to be the most discriminatory restriction endonucleases with which to cut H pylori .
6 As well as its impact on the ozone layer , the gas is highly toxic , having been found to be the cause of 34 deaths in California alone since 1974 .
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