Example sentences of "over an [adj] period [prep] " in BNC.

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1 It was noted that of those 35 patients who did not have dermatitis herpetiformis , 15 had attended their general practitioners and hospital outpatient clinics on several occasions over an average period of 28 years ( 0.5–50 years ) with unexplained symptoms or abnormalities in blood tests but the diagnosis of coeliac disease had been missed .
2 The light waves emitted from the surface of the star between 10:59:59 and 11:00 , by the astronaut 's watch , would be spread out over an infinite period of time , as seen from the spaceship .
3 Young , Hay , and Ellis ( 1985 ) asked 22 people to keep records over an eight-week period of difficulties they experienced in recognizing people .
4 Other freeholders , however , were less career-motivated , and often showed considerable loyalty to a particular political interest over an extended period of time , and as a generalisation it might be suggested that they were less likely to jump from one interest to another than were the lawyers with judicial preferment in mind .
5 Miller observed that penal institutions ‘ can not sustain their decency over an extended period of time .
6 These developments have led to the encroachment of examinations into Thursday and Friday of week 10 but , nevertheless , over 7,600 examination places were administered by the examinations office over an eight-day period in July 1988 .
7 These workers reported the effects of various potencies of silver nitrate ( Argentum nitricum ) on the growth of wheat seedlings which gave reproducible results over an experimental period of about a year .
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