Example sentences of "have [be] shown that [adj] " in BNC.
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| 1 | It has been shown that overall word shape by some coding of ascending and descending letters relative to a mid zone ( upper , middle and lower zone ) is restrictive across a lexicon ( Sinha , 1990 ) . |
| 2 | It has been shown that 10 per cent of the 400 people interviewed in Birmingham had given a lower age to gain admission to Britain , and now can not gain a pension at the proper time ( Bhalla and Blakemore , 1981 ) . |
| 3 | It has been shown that many additives are responsible for behavioural problems among young people , such as irritability , clumsiness , excitability and aggressiveness . |
| 4 | It has been shown that such listings have a substantial effect on the way in which previous research is used . |
| 5 | We injected synthetic , completely unmodified , mature sized tRNA molecules into the cytoplasm , since it has been shown that all the different modifying activities are present also in the cytoplasm ( 10 ) . |
| 6 | In Lindsey ( Eagles 1979 , pp. 177–8 ) it has been shown that 11 per cent are on such boundaries and 18 per cent within 500 feet . |
| 7 | Using Ca 2+ -imaging techniques it has been shown that tetanic stimulation elevates Ca 2+ within dendrites and spines . |
| 8 | Recently it has been shown that normal volunteers efficiently absorb an oral load of 100 g of rice starch with minimal generation of breath H 2 . |
| 9 | It has been shown that one of the basic criticisms of ‘ boy labour ’ was the ‘ decay ’ or ‘ decline ’ of ‘ old-style ’ apprenticeship under the impact of excessive specialization of process which resulted in a ‘ dilution ’ of apprenticeship proper . |
| 10 | It has been shown that anxious individuals rend to interpret ambiguous stimuli in line with a threatening interpretation if one is available . |
| 11 | A primary reason for this may be the differences in average educational status , which tends to be lower among rural people , though it has been shown that rural residence ( from birth ) can influence child mortality levels over and beyond the effect caused by differences between the two areas in educational standards . |
| 12 | Although traditionally sprinkler systems have been resisted in libraries , it has been shown that modern systems , which open and close individual sprinkler heads in response to temperature rise and fall , would prevent fires developing to the point at which structural collapse would occur , and would restrict water damage to a relatively small area of stack . |
| 13 | It has been shown that oral administration of lipid mixtures containing surface-active phospholipids provides significant protection to the gastric mucosa against a variety of ulcerogenic agents , including acid . |
| 14 | In the previous Section it has been shown that these harmonics can contribute to the mechanical output power , because harmonics of current lead to harmonics of motional voltage — The approach adopted here is to introduce a " torque correction factor " which allows for the harmonic contribution to the pull-out torque . |
| 15 | It has been shown that some schools offer a rehash or revision programme based on pre-registration modules , while others prepare courses in line with the very latest developments available . |
| 16 | Thirdly it has been shown that some sequence selective ligands induce bleomycin cleavage at novel sites [ 24,25 ] . |
| 17 | Today , herbivory in the crowns of mature trees in lowland rain forest in geographically distinct regions in the New and Old Worlds leads to 13.8–14.6% tissue loss in the leafy branches of trees , but consistently less in epiphytes , while in Ghana it has been shown that those plants with a rapid flush of leaves are consistently less severely attacked than those with a slower leaf production . |
| 18 | It has been shown that most suicide attempters are aware of the existence of agencies where they could obtain help , such as the general practitioner , social workers , or the Samaritans ( Kreitman and Chowdhury 1973b ) ; in fact , a significant proportion of attempters had been in touch with one or more of these agencies in the weeks preceding the attempt ( Bancroft et al. 1977 ) . |
| 19 | However , it has been shown that this is not the case . |
| 20 | A new class , the W-cells , has been added , descriptions of the properties of the three classes have been extended , and it has been shown that this segregation into three classes extends to subsequent stages in the visual system , including the visual cortex . |
| 21 | It has been shown that different habitats have highly characteristic patterns of species diversity ( Fleming , 1973 ; Krebs , 1978 ; Andrews , Lord & Evans , 1979 ; Avery , 1982 ) . |
| 22 | It has been shown that different selling approaches must be adopted , depending upon the situation in which one is selling . |
| 23 | But it has been shown that few of the innovations of this period were without precedent in the policies of earlier years , and that much of the crucial thinking about the form these new institutions should take had been done in the inter war period . |
| 24 | It has been shown that particular shapes tend to be correlated , in the case of cremation pottery , with particular grave-goods , the sex of the individual which the vessels contain and the decoration on the vessel ( Richards 1982 ) . |
| 25 | It has been shown that experimental anoxia and a metabolic uncoupler , 2,4-dinitrophenol , cause structural changes in gap junctions , characterised by a tighter hexagonal aggregation of the gap junctional particles in the stomach and other tissues . |
| 26 | Scientifically , it has been shown that electromagnetic field variations influence enzyme activity , the autonomic nervous system and thus behavioural patterns . |
| 27 | As Friends of the Earth comment : ‘ There are alternatives available , and it 's been shown that heavy treatment with chemicals is unnecessary . |