Example sentences of "study [verb] shown that [adj] [noun] " in BNC.
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| 1 | A previous study has shown that mucosal tissue type plasminogen activator , when released from endothelial cells by platelet activating factor , plays an important role in the process of gastric ulcer formation by inducing macromolecular permeable change in the rat experimental model . |
| 2 | Data from the Coronary Artery Surgery Study and European Coronary Surgery Study have shown that coronary artery bypass grafting ( CABG ) reduces the incidence of sudden death in selected patients with chronic stable angina , particularly those with impaired left ventricular function . |
| 3 | ‘ And on the psychological side , ’ says Mr Hadley , ‘ a review of the results of 66 different studies has shown that moderate alcohol intake is associated with increased powers of expression , happiness and conviviality , and reduced stress , tension , depression and self-consciousness . ’ |
| 4 | Two studies have shown that general practitioners can deal with a high proportion of night calls on the telephone , but Sheldon and Harris found that fewer than 3% of night calls received by two deputising services were dealt with by giving advice by telephone without a visit . |
| 5 | Case-controlled studies have shown that pulmonary colonisation with P cepacia is associated with increased morbidity and rapidly fatal deterioration . |
| 6 | International studies have shown that increased tax incentives to companies for R&D would be ineffective and wasteful . |
| 7 | More recent studies have shown that hepatic denervation causes significant changes in the biliary lipid composition . |
| 8 | Previous studies have shown that hepatic bile from cholesterol gall stone patients provides a greater total lipid concentration but not to a significant degree compared with controls . |
| 9 | C-NMR and Raman spectroscopic studies have shown that ultraviolet irradiation causes the two conjugated triple bonds of the monomer to be replaced in the polymer by an alternating double-bonded and triple-bonded conjugated structure . |
| 10 | These findings were unexpected , as most of previously published clinicopathological studies have shown that low grade B cell gastric lymphoma is a disease process confined to the stomach for years . |
| 11 | Molecular epidemiological studies have shown that geographical heterogeneity exists between isolates and that numerous clones ( defined by restriction fragment-length polymorphism analysis of rRNA genes ) seem to be circulating . |
| 12 | Several studies have shown that faecal bile acid excretion is appreciably raised in patients with cystic fibrosis and is comparable with that seen in subjects who have had ileal resection . |
| 13 | Interestingly , previous studies have shown that site-specific dephosphorylation in the C-terminal region of c-Jun in response to mitogenic stimuli converts the protein from a form that can not bind DNA to a form that can ( 15 , 16 ) . |
| 14 | Additionally , animal studies have shown that monaural occlusion early in development can influence the development of auditory receptive fields in the central nervous system . |
| 15 | Several studies have shown that diabetic platelets synthesise increased amounts of thromboxane A 2 as assessed by thromboxane B 2 levels ( Ziboh et al , 1979 ; Butkus et al , 1980 ; Lagarde et al , 1980 ; Halushka et al , 1981b ) . |
| 16 | However , several other studies have shown that successful breeders live longer ( Drosophila melanogaster : Partridge & Farquhar , 198 1 ) . |
| 17 | As other studies have shown that working class people suffer most from ill-health and also use health services less effectively than others , the research investigates three small samples of such people in three different areas : East London , Birmingham and Leeds . |
| 18 | As longitudinal studies have shown that fearful children can be at risk for later behaviour problems ( Richman et al . |
| 19 | Several studies have shown that mucosal cell proliferation is uniform throughout the various segments of the colon in normal subjects , in those with adenomatous polyps or colon cancer , and in those with hereditary risk factors for colon malignancy . |
| 20 | A number of such studies have shown that economic growth rates can not be explained completely by changes in capital and labour inputs . |
| 21 | Several studies have shown that unskilled staff rapidly acquire the skill to insert the mask . |
| 22 | i Several studies have shown that smoking habits vary between socioeconomic groups , i.e that people from lower social groups with less education or in manual occupations are more likely to smoke than those from other socioeconomic groups . |
| 23 | Indeed , previous in vivo studies have shown that intravenous administration of PYY in man at plasma concentrations seem postprandially inhibits gastric emptying and intestinal transit . |
| 24 | With that said , a large number of studies have shown that physical measures are much more effective in reducing speeding . |
| 25 | Other studies have shown that social class is as important a factor in the housing conditions of one parent families as it is in the two-parent families . |
| 26 | Studies have shown that most products pass through a series of stages — their life-cycle — from the time they are introduced until the time they are withdrawn . |
| 27 | Further studies have shown that these effects are not restricted to omeprazole treatment , but are also found during treatment with other H + /K + -ATPase inhibitors and high dose H 2 receptor antagonists , suggesting that the effects are secondary to profound , long term acid inhibition . |
| 28 | Many studies have shown that these tumours are surgically curable . |
| 29 | In situ hybridisation studies have shown that human papillomavirus can be detected only within lesions and not in adjacent normal epithelium . |
| 30 | However , several studies have shown that aggressive toys do lead to a rise in anti-social behaviour , but that this is short-lived . |