Example sentences of "[conj] [verb] [be] show [prep] be " in BNC.

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1 The remedies of the homoeopathic materia medica have not , as has happened to their orthodox counterparts , had to be abandoned , as one after another they have lost their efficacy or have been shown to be too toxic to be used safely .
2 Medication Imipramine ( a tricyclic antidepressant , Tofranil ) is the only drug that has been shown to be significantly more effective than a placebo in reducing wetting frequency .
3 Moreover , by choosing an option that has been shown to be the best in terms of quality of life days gained general practitioners would be more certain that they were acting with beneficence ; at present , using simply their ‘ unaided intuitive judgment ’ to make such decisions , they can only hope that this is the case .
4 Both plasmids were introduced into E.coli C , a strain that has been shown to be deleted for the chromosomal hsd genes [ 29 ] , and tested for R-M function .
5 The confounding factors were patients ' characteristics that had been shown to be predictive of increased perinatal risk .
6 The patient returned to eating only foods that had been shown to be safe .
7 Non-mydriatic fundal photography is useful for detecting retinopathy in patients with diabetes and has been shown to be effective in identifying previously unrecognised retinopathy when used in the community .
8 The technique has been adapted to suit the format of text recognition data , and has been shown to be effective as a means of identifying correct words from alternative candidates .
9 Acidophilic atypical acinar cell foci in the rat have a high proliferative capacity and have been shown to be responsive to CCK , whereas the basophilic atypical acinar cell foci seem to have a low growth potential , not appreciably affected by CCK .
10 Empirical therapy with class I antiarrhythmic drugs ( quinidine , procainamide , disopyramide ) was once widely practised but has been shown to be at best ineffective and at worst dangerous .
11 ZNF proteins contain ‘ finger ’ motifs consisting of approximately 30 amino acids which coordinate a zinc ion , and were first described in the Xenopus transcription factor IIIA ( 6,7 ) , but have been shown to be present in species as diverse as Drosophila and man .
12 Smoking control advocates will be thus justified in broadcasting that the tobacco industry is ( yet again ) on the public record as having been shown to be deceitful in its communications with the public .
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