Example sentences of "[verb] [art] [noun sg] over a period " in BNC.

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1 To test its effectiveness , Biotherm monitored 80 women using the treatment over a period of 30 days .
2 Nylon bristles are not to be recommended because they are likely to create static electricity in the coat and may actually damage the hair over a period of time .
3 This method of calculating an average is favoured by the hotel and catering industry as it can show the trend over a period of time and eliminates the effects of seasonal fluctuations .
4 I hasten to add that when I was responsible , as Secretary of State for the Environment , for such developments in England , I found that , with certain conditions one could improve the environment over a period of years .
5 The results of testing the model over a period from the late 1890s to 1970 are satisfactory for all the variables employed , and the government 's impact upon union growth is shown to be highly significant .
6 Not one delivery — ’ he held up one finger — ‘ was more than six minutes later than we estimated , taking account of the traffic , and we checked every delivery over a period of two weeks . ’
7 By a notice of motion dated 14 February 1992 the local authority appealed against those parts of the order which directed that there should be no contact between the father and the girl until after the local authority review and that there should be supervised contact between the girl and her half-sister , on the grounds that ( 1 ) the justices had been wrong in law in failing to invite the parties to comment on the agreed proposals for contact ; ( 2 ) the justices had been wrong in law in failing to indicate to the parties the nature of the orders for contact which they proposed to make , thereby depriving the parties of the opportunity to make submissions relating to those proposals ; ( 3 ) the justices had wrongly exercised their discretion in authorising the local authority to refuse contact to the girl by the father for only six months when they had found as a fact , inter alia , that the father had abused the girl over a period of at least 18 months ; ( 4 ) the justices had been wrong to impose the condition of supervision on contact between the girl and her half-sister when there had been no application for such contact to be supervised , the evidence was that the half-sister had been enjoying unsupervised contact and that there was no evidence that there was any risk of the girl coming into contact with her father while having contact with her half-sister , and the justices had heard evidence that the local authority were considering placing the girl with her half-sister and by their order they had precluded the local authority from making such a placement and had fettered the discretion of the local authority ; and ( 5 ) the order was therefore contrary to the girl 's best interests .
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