Example sentences of "have produced a [adj -er] " in BNC.
Next page| No | Sentence |
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| 1 | Our data were subject to several constraints : a far lower response rate from probation officers in the second survey ; the effects of changes in agency policies and practices during the two survey years ( e.g. medics ' notifying practices , police detection efforts/successes ) ; the ‘ loss ’ of some users identified in the first survey , and of some new users , to institutions and agencies not covered by the research ( e.g. custody , rehabilitation units , drug agencies in adjacent areas ) ; disillusionment with some agencies among heroin users ( particularly medical services ) , which may have produced a higher ratio of unknown to known users than in the previous year ; the optimistic assumption of 20 per cent annual outcidence-for instance , one review of follow-up studies of opioid users suggests that outcidence after one year is typically around 10 per cent , and may only reach 40–50 per cent after ten years , even for those who have received ‘ treatment ’ ( Home Office 1986 , ch. 7 ) ; and the decline in the size of the youth population , due largely to the drop in the birth rate during the 1960s-that is , the absolute number of known heroin users could decrease while the rate per 1,000 youths remained the same or even increased ( the population figures from which our prevalence rates were calculated derived from 1981 Census statistics , and do not take into account projected trends ) . |
| 2 | So there were two key consequences ; one was that universities came to see that planning of such change might have produced a better result : the other that vengeful dons denied Mrs Thatcher her honorary degree from Oxford . |
| 3 | On the other hand , there were steps which de Gaulle might have taken in 1944 – 46 — steps which might have produced a better outcome on the ( to him ) all-important issue of the constitution and might also have bolstered his popularity . |
| 4 | However , insufficient height was available to install windows copying the attenuated shape of the original ‘ lancets ’ and the unquestioning reproduction of the arch form in the new windows would have produced a weaker visual result than the treatment which was adopted — the insertion of new tripartite lights capped by a simple square-headed profile ( Plates 18 and 19 ) . |
| 5 | Natural selection would then gradually have produced a hardier group of individuals capable of remaining for longer in the remote mountain regions . |