Example sentences of "[noun pl] [prep] [be] effective " in BNC.

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1 Mere are many ways in which governments and their supporters can prevent these methods from being effective , but they can not work at all if the opposition has no real procedural opportunity to apply real scrutiny , nor if its efforts do not arouse the media of information and public opinion .
2 With all its uncertainties and lack of guarantees , such a policy had many practical changes of being effective against Iraq 's economy and of causing political and economic isolation .
3 For its missiles to be effective , China would require a source of data about possible targets .
4 The Rifleman was too far away for the short-barrelled , smooth-bore guns to be effective .
5 Both systems would require a critical mass of terminals to be effective .
6 However , expertise within a specific domain is needed in order for the techniques to be effective .
7 If a prisoner serving a mandatory life sentence is to be given the opportunity to make representation to the Secretary of State concerning the length of his tariff , as in my judgment he should be , then , for those representations to be effective , he ought to be made aware beforehand of the nature of the judge 's advice .
8 For plans to be effective management should consider the wider environmental factors that relate to the firm .
9 ( iii ) It is necessary for there to be a quorum of creditors for the meetings to be effective .
10 Power of the individual must be structured into associational clique or institutional patterns to be effective
11 You need time for the leaflets to be effective — maybe three weeks .
12 One could not do exercises without knowing which exercises one was doing — especially as active mental involvement is needed for the exercises to be effective !
13 Whilst recognising the need to introduce measures that would make Colleges more self-supporting , it was considered unrealistic to expect such measures to be effective immediately .
14 Fears remain , however , that the area is too unstable for any such measures to be effective .
15 They need high temperatures to be effective ; stop-start driving of the sort prevailing in European cities does not suit them ; the planned three-way catalysts are ‘ poisoned ’ if leaded petrol is used ; they add 10 per cent to fuel consumption .
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