Example sentences of "have show that " in BNC.

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1 McGreil ( 1977 : 363–408 ) has shown that though Dubliners find the English more acceptable than the Northern Irish , Dubliners still seek a solution to the Northern problem within an all-Ireland state .
2 Firstly , karateka are not allowed to bring their own coaches with them to training sessions because experience has shown that the presence of other coaches breaks up the training atmosphere , and causes people to separate to far corners instead of remaining together .
3 ( Hartman has shown that the average person has one or less nightmares a year ; and only one person in 500 has them on a weekly basis . )
4 Later research has shown that dreaming is not unique to this phase of sleep , but REM dreams are typically much more colourful and rich in imagery than non-REM dreams .
5 My particular cleaner came with two sizes of suction tube , and experiment has shown that for maximum suck the large diameter pipe must go from the cleaner to the container .
6 Recent research has shown that not all joint-ventures or alliances between Western and Japanese companies are a complete success .
7 The dig has shown that the 90ft long north wall of the keep and fragments of the east and west walls survive to a height of up to 18ft .
8 Practice has shown that social justice can not be achieved where the free market is idolised .
9 A recent survey in the Wall Street Journal , America 's only readable paper , has shown that the microwave is the nation 's favourite household appliance , second only to the smoke alarm in terms of its importance to the American lifestyle .
10 New Democracy , led by Constantine Mitsotakis , has shown that its undertaking to rid the bureaucracy of party domination means merely replacing Pasok stalwarts in key state posts with its own loyal time-servers .
11 Detailed biochemical work has shown that target cells carry an insulin receptor molecule on their surfaces , which reacts with insulin molecules in the surrounding body fluids .
12 Research on encounters between police and public has shown that from the public 's view even the crime-fighters need communication skills ( Dix and Layzell 1983 ; Southgate and Ekblom 1984 , 1986 ; Sykes and Brent 1983 ) , although these abilities are all too often absent .
13 Research has shown that in relation to many basic industrial commodities , such as paper , glass and cement , there is often a close relationship between total consumption ( market demand ) and GNP .
14 Do n't think you have to be based in London to create a buzz , as recent history has shown that new music movements rarely originate in the capital .
15 Ellen Ross 's work has shown that among working-class Edwardians the marriage contract entailed a precise understanding of duties and obligations regarding maintenance ( on the part of the husband ) and household management ( on the part of the wife ) , but little by way of intimacy or romantic love . ’
16 On the other hand , a systematic survey by the International Labour Organization has shown that , in a sample of ten African countries , 40 per cent of informal sector enterprises pay some form of tax or registration fee , implying a degree of recognition by government .
17 Debord , for example , proclaims : ‘ The critical position later elaborated by the Situationists has shown that the suppression and realization of art are inseparable aspects of a single supersession of art . '
18 But older men and women may be affected too , and evidence has shown that some races are more likely to have it than others .
19 Mr Tam Bayoumi has calculated the average size of capital flows each year in the major economies under the Gold Standard from 1880 to 1913 , and has shown that they were much larger than during the post-war period from 1965 to 1986 .
20 This year , by refusing to negotiate with Bucharest on a new agreement , the European Community has shown that ‘ differentiation ’ can be applied negatively , too .
21 Ms Jenny Wilson , a trustee of the charity , said research has shown that men have modified their sexual behaviour towards each other , but few towards women .
22 ‘ Experience has shown that the Home Secretary on his own simply can not carry out oversight of MI5 , ’ Mr Day said .
23 Yet the choice of Bull as a partner is an odd one , for he and Lineker are essentially penalty-area predators and past experience has shown that when two such players are used together they tend to be like dogs after the same bone .
24 Pierre Beland and Daniel Martineau were members of a research team which showed that the concept of blubber as an inert tissue was incorrect — the ratios of contaminants in samples from over 70 autopsied belugas has shown that toxins are continually exchanged between various tissues .
25 Although Bob Hawke says he intends to lead the Labor Party into the next general election , due by 1993 , the toppling of Margaret Thatcher has shown that even the mightiest are vulnerable .
26 Eastern Europe has shown that non-market economies with slow growth can pollute the environment more than most .
27 Analysis has shown that it is not just the recipe for the pickling solution which affects the colour but , more fundamentally , low levels of alloying elements added to the copper .
28 Neutron activation analysis has shown that this series of pieces was made at Castilli in southern Italy .
29 These trace amounts of clay can be analysed chemically and research has shown that the flint taken from the major flint mines scattered across southern Britain ( fig. 6.5 ) has a particular chemical composition for each mine .
30 Analysis has shown that the figureheads are of Parian marble ( from the Aegean island of Paros ) , a particularly fine-quality marble , which was expensive because it was mined from underground .
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