Example sentences of "[vb -s] [be] [vb pp] by recent [noun sg] " in BNC.

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1 But the concept of mutual mate choice has remained untested experimentally , although it has been supported by recent modelling .
2 And this general approach has been supported by recent sequencing studies , so the the channels have been er the C D N A for the channels has been sequenced , and that indicates that the evolutionary relationships between channels have been based er have arisen er pri primarily on the basis of their gating properties rather than on the basis of their ionic selectivity .
3 The therapeutic potential of these genetic advances has been indicated by recent gene transfer experiments by Woo in an inbred strain of mouse with phenylalanine hydroxylase deficiency ( S L C Woo , paper delivered at annual meeting of European Metabolic Group ( Milupa ) Copenhagen , May 1991 ) .
4 The potential pathogenicity of free radicals has been emphasised by recent work which suggests that reactive oxygen metabolities are not just one of a number of mediators and cytokines involved in the inflammatory process in inflammatory bowel disease but may have a pivotal role by initiating the expression of genes controlling may other aspects of the inflammatory , immune , and acute phase response , by activation of the transcription factor NF-kΒ .
5 The gravity of the situation has been heightened by recent management turmoil .
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