Example sentences of "[noun] [vb pp] over a [adj] period " in BNC.

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1 For these species , therefore , about half of the bones expected to be present , based on the numbers of prey animals consumed over a measured period , were recovered from the pellets .
2 In a study undertaken over a two-week period , Tom Tadecki , research director of the International Coalition Against Violent Entertainment , found that more than 33 per cent of its programmes involved some form of aggression , with violent acts occurring at a rate of 10 per hour .
3 Such factors may include , for instance , a previous experience of loss which was dealt with badly , unresolved grief , past experience of failure , a lack of a sense of self-efficacy , a low self-esteem , a previous history of psychiatric disorder , and an absence of close relationships established over a long period of time .
4 It was the result of a carefully planned experiment based on numerous other experiments performed over a long period .
5 Sponsored by Sainsbury 's supermarket chain , this year 's event at Smith 's Galleries in Covent Garden from 26 October offered 508 works sold over a six-day period , raising £241,248 .
6 One other study , in which a group of 341 epidemiologists had H pylori antibody state assessed over a mean period of 8.5 years , also showed a low rate of serovonversion to a positive antibody state over time , ( 0.49% per person year ) .
7 Egyptian ideas about the creation of the world developed over a considerable period of time .
8 The objective reality of such an energy distribution system is thoroughly documented by Dr Hiroshi Motoyama of Tokyo , who has spent thirty years researching the subject of Bio-energy and from results of tests conducted over a fifteen-year period qualifies his work in these words
9 At its meeting on 25 January the National Executive agreed to a statement surveying Cripps ' " past campaigns waged over a long period " , " his wide departure from the Party 's Programme , Principles and Policy " , and his " organised effort fundamentally to change the Party 's direction and leadership " .
10 Perhaps it is because a predator is able to find and eat relatively large numbers of aposematic prey in a short space of time , and that the high initial rate of feeding produces a more powerful reinforcement than a greater number of prey eaten over a longer period .
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