Example sentences of "have demonstrated [that] [noun] " in BNC.
Next page| No | Sentence |
|---|---|
| 1 | Observations by Mariner 10 have demonstrated that Mercury does have an intrinsic magnetic dipole moment . |
| 2 | Although these various studies have demonstrated that TV can be acquired other than sexually , as with gonorrhoea , such cases probably make up a very small minority of the total . |
| 3 | Epidemiological studies , mainly in the non-diabetic , have demonstrated that hypertension is one of several major risk factors for atherosclerosis ( Keys , 1975 ; Miller et al , 1981 ) . |
| 4 | Thus , for example , Preston , Dickinson , and Mackintosh ( 1986 ) have demonstrated that rats given alternate sessions in two contexts can come to respond appropriately to a tone that signals the occurrence of shock when it occurs in one of them and the occurrence of food when it occurs in the other . |
| 5 | Common-sense observers have long noted this ‘ mellowing ’ , yet it is only recently that empirical data have demonstrated that concern for relationships does on average increase , that concern for stability and structure also increases , and that enthusiasm for the radical or the different is replaced by conservative views of the world . |
| 6 | Comments already cited from the forty interviews have demonstrated that women are often aware of a link between their own ways of doing housework and those of their mothers . |
| 7 | Moscow 's current policy in Latin America is aimed at undermining US influence while seeking to develop its own ties with the more ‘ progressive ’ and independent governments , and events have demonstrated that anti-Communism can no longer be regarded as a significant impediment to the success of such a policy . |
| 8 | In addition , catecholamine levels are elevated during β blockade ( Rahn et al , 1978 ) and studies in vitro have demonstrated that catecholamines inactivate lipoprotein lipase ( Ashby et al , 1979 ) . |
| 9 | Both laboratory experiments and numerical simulations have demonstrated that plumes can arise only at a boundary between convective regimes , such as that between the Earth 's core and mantle at a depth of 2,900 km . |
| 10 | ‘ The same workers , ’ says the Nature Conservancy Council , ‘ have demonstrated that acid deposition has caused widespread acidification of upland peat . ’ |