Example sentences of "[noun] over long period " in BNC.

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1 Anomalous aspects of nature often venerated by ritual over long periods of time become charged with the directed mental/ psychic energy of their race .
2 It has also been clear in his methods of training orchestras over long periods of time .
3 Because the ability of breastfeeding to sustain the period of infecundity due to amenorrhoea over long periods depends , inter alia , upon the frequency and intensity of suckling , and in the light of the generalized view that lengthy spacing is essential to child survival , in most African and some other societies , breastfeeding is reinforced by abstinence .
4 The variations in fortunes thus produced saw changes in the county 's position relative to the rest of England over long periods ; more immediately , there was often a considerable contrast between wealth and poverty in different parts of the area .
5 Although Britain has been occupied by man for more than 25,000 years , in a form of intermittent visits over long periods between glaciations , it is only for the last 12,000 years or so that the country has been continuously occupied , with people moving into Britain permanently to exploit what resources were available .
6 Government is becoming increasingly task or product orientated , rather than directed towards carrying out functions over long periods of time in line with established routines .
7 With brute strength ( it took at least ten horses to shift even one medium field gun ) , the Germans eventually moved their guns forward but the delays involved meant that many of the deadly 21Os , so essential a part of the German offensive technique , were hors de combat over long periods of the battle during its most critical phase .
8 The crucial experiments with standardised diets , each time excluding or adding wheat or rye flour over long periods in these children with coeliac disease , were performed on four children in the Wilhelmina Children 's Hospital in Utrecht and in one child in the Juliana Children 's Hospital in The Hague .
9 Political parties retain the same name over long periods , implying sameness of identity .
10 This may take the form of economic growth as a whole over long periods .
11 Together with inevitable involvement with patients and their families over long periods , this encourages a change of emphasis from diagnosis/treatment/cure to assessment/assistance/care .
12 Not only is the method not scientific but , to the extent that Marx did make certain historical prophecies which can be related to empirical evidence over long periods of time , these can be examined and by and large they have not proved to be valid .
13 Longitudinal studies indicate that the condition affects people over long periods of their lives yet there is no evidence that they are at risk of any serious organic disease .
14 This trade-off was based on the original observations by Professor A. W. Phillips of the relationship between the rate of change of money wage rates and unemployment levels over long periods of time going back as far as 1861 .
15 Cos of uncertainty about the arrangement over long period , decided to opt for one-year-only subscription .
16 It might be expected that where such clonal growth is possible , the struggle for existence over long periods of stable management would lead to the local dominance of single clones — those that had succeeded in a struggle for existence with others .
17 Three features which are significant are trend , which includes well defined cyclic behaviour ; persistence , when a particular value in a sequence is constrained by adjacent values ; and intermittency , whereby there is a tendency for non-periodic grouping of like values over long periods of time , which effect is called the ‘ Hurst phenomenon ’ .
18 What I know about palaeotology is n't too much I mean I obviously have to try and know a bit , but it 's not my field — erm in order to test the minor claim , you have to be able to get your hands on some rock which actually consists of continuous sedimentation over long periods of time .
19 What theme might we expect to find in the background of someone highly motivated by money over long periods ?
20 They ‘ trapline ’ , moving directly from one food site to the next , apparently remembering them from previous days , and are fast fliers , visiting plants producing ( few ) flowers over long periods .
21 Comparisons of this kind are difficult to make with accuracy over long periods of time ; but the direction and size of the change are beyond doubt .
22 To be of any practical use , an object made from a polymeric material must be able to retain its shape when subjected to even small tensions or compressions over long periods of time .
23 Children received portions of the family property on different occasions over long periods of time .
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