Example sentences of "[vb base] shown that [noun] " in BNC.
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| 1 | Several previous studies have shown that eradication of H pylori , with or without ulcer healing , produces a fall in fasting plasma gastrin concentrations . |
| 2 | Tony Underwood , Mullins , Johnson , Back and Greenwood have shown that maturity and commonsense have gone hand in hand in their development . |
| 3 | In the case of definite pronouns , we have shown that mapping from roles to roles and from roles to names can be influenced by manipulating the experimental task and , presumably subjects ' perception of it . |
| 4 | Recent studies have shown that plasma concentrations of 7α-hydroxy-4-cholesten-3-one reflect the cholesterol 7α-hydroxylase activity and bile acid production in the human liver . |
| 5 | Clinical trials have shown that treatment with vitamin A reduces the severity of illness and mortality in children with measles , even in areas where eye signs of vitamin A deficiency are rare . |
| 6 | Studies in several species , including humans , have shown that electroneutral Na + and Cl - absorption in the ileum , colon , and gall bladder are largely interdependent processes . |
| 7 | McGregor et al have shown that dextrose given intravenously inhibits meal stimulated intraduodenal bilirubin output . |
| 8 | Previous studies have shown that expansion of the proliferative compartment toward the surface of the colonic gland is a common feature in subjects at high risk for colorectal cancer . |
| 9 | We have shown that haemoglobin concentrations over 150 g/l in the first week tend to protect infants from red cell transfusion . |
| 10 | We have shown that knowledge of immunohistological reactivity with a panel of six antibodies to tumour markers can predict the primary site of origin correctly in 70% of tumours in men and 58% of tumours in women with specificities ranging from 68% for breast tumours to over 90% for tumours in the gut , lung , prostate , and thyroid . |
| 11 | Cell fusion and genetic research at Oxford over the past two decades have shown that malignancy and the ability of tumours to spread and kill an animal can be suppressed by the function of normal cellular genes . |
| 12 | Beardshall and coworkers have shown that suppression of H pylori with tripotassium dicitratobismuthate and metronidazole decreased the response of gastrin to gastrin releasing peptide stimulation . |
| 13 | In the present study , we have shown that instillation of 100 µmol HCl into a perfused duodenal loop triggers the release of PGE 2 , and the response is quantitatively more important in rats fed the linoleic acid supplemented diet than in the other two experimental groups . |
| 14 | These studies have shown that dissociation from synthetic DNAs , such as poly(dG-dC) , is described by a single exponential [ 14-16 ] whereas dissociation from natural DNAs is a complex function in which the proportions of the various time constants vary according to the input ratio of drug and DNA [ 13 ] . |
| 15 | The southern Pennines has the highest calculated load of nitrogen at 25 — 55kg/N/ha , John Lee from Manchester University and Sarah Woodin of the NCC have shown that sphagnum peat bogs first killed off by sulphur dioxide now can not recover because of high levels of nitrogen . |
| 16 | Clapp et al have shown that cord blood between 25 and 31 weeks ' gestation is particularly rich in haemopoietic stem cells . |
| 17 | Studies on purified rat sciatic nerve Schwann cells have shown that proliferation in vitro depends on mitogenic factors . |
| 18 | Endo et al have shown that tumour necrosis factor , transforming growth factor , and interleukin-8 increase ET-1 synthesis in guineapig tracheal epithelial cell cultures . |
| 19 | On the other hand numerous studies have shown that clay from one locality , if not always of a single composition , has at least a reasonably uniform and limited compositional range , whereas clays from different locations ( towns , countries , continents ) have different chemical compositions because they reflect differences in the underlying geology . |
| 20 | MRP and company investigations around the Foreburn igneous complex , near Ayr in southern Scotland , have shown that alteration , including sericitisation and tourmalinisation , has affected zones within the complex which is composed of diorite , tonalite and feldspar porphyry . |
| 21 | A number of studies with normal subjects have shown that ear ( McFarland , McFarland , Bain and Ashton , 1978 ; Kelly and Orton , 1979 — but see Lambert and Beaumont , 1982 ) or visual hemifield asymmetry is negligible or reduced for concrete highly imageable words as compared with abstract , non-imageable , words ( Ellis and Shepherd , 1974 ; Hines , 1976 , 1977 ; Hatta , 1977 ; Day , 1977 , 1979 ; Marcel and Patterson , 1978 ; . |
| 22 | By 2000 , there could be a surplus of up to one million hectares of arable land , and studies have shown that willow and poplar , which thrive on poor land , could provide about 6 percent of the UK 's electricity needs . |