Example sentences of "be shown [prep] be [vb pp] by " in BNC.

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1 In addition a recently identified group of pain afferents ( usually functionally dormant and called ‘ sleeping nociceptors ’ ) has been shown to be activated by inflammation and may contribute to peripheral sensitisation to pain after injury .
2 Light adaptation characterized by a decrease in rod sensitivity in the presence of background illumination has been shown to be mediated by Ca 2+ ( refs 26 , 27 ) .
3 This may be important as weight loss with accompanying reduction of blood pressure in obese non-diabetic hypertensives has been shown to be accompanied by reduced levels of plasma renin activity and aldosterone ( Tuck et al , 1981 ) .
4 Moreover his site is contained within a short region of the HPV 18 URR whose activity has been shown to be inhibited by Oct-1 in co-transfection assays and which does not contain the Oct-1 target site we have characterized here ( 13 ) .
5 The choices , assessments and selections which go into formulating a strategy , and the ingenuity or crassness displayed in implementing it , must themselves be shown to be determined by factors other than intentions .
6 The proposed development is contrary to the stated policy of the local planning authority where new dwellings in the countryside are normally resisted unless they can be shown to be justified by agricultural need .
7 If it is possible to generalize from this at all , it is that presence of predator remains in a fossil assemblage gives no indication of method of origin of the assemblage , even if it can be shown to be accumulated by a predator .
8 However , the extent of this new-found tolerance is shown to be limited by the hysteria generated by the disease AIDS against male homosexuals .
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