Example sentences of "studies have [verb] that the " in BNC.
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| 1 | In addition , several studies have demonstrated that the amounts of prostacyclin normally found in the circulation are probably too low to have an appreciable effect on platelets ( Steer et al , 1980 ; Haslam & McClenaghan , 1981 ; Greaves & Preston , 1982 ) , and endothelial cells in culture produce little prostacyclin unless stimulated by thrombin for instance ( Weksler et al , 1977 ) . |
| 2 | Empirical studies have demonstrated that the lower the top rate of tax , the greater the yield . |
| 3 | Since Broca 's pioneering work , a variety of studies have confirmed that the left hemisphere plays a dominant role in the comprehension and expression of written and spoken language . |
| 4 | Studies have indicated that the weight conscious , brainwashed by years of ‘ cut out those carbohydrates ’ advice , tend to avoid the bread and potatoes which supply a good deal of the fibre in most people 's diets . |
| 5 | Consistent with this possibility , preliminary mapping studies have indicated that the sites of Sp1 phosphorylation lie outside of the DNA binding domain but within the N-terminal portion of the protein that contains the transcriptional activation domains ( 4 ) . |
| 6 | A variety of different studies have illustrated that the distribution of dependency also varies within the long-term care sector ( Bennet 1986 ; Harrison et al . |
| 7 | Various studies have shown that the public evaluate the police in terms of the attitude the police show them when they are victims in need of police help ( for example , Jones 1983 ; Maguire 1982 ; Shapland 1982 ; Southgate and Ekblom 1984 ) . |
| 8 | Indeed , a number of studies have shown that the rate of relapse following CBT is only half the rate for clients taking anti-depressants . |
| 9 | Studies have shown that the water-vole , ‘ Ratty ’ of The Wind in the Willows , has become scarce in many areas , due to intensive management of river banks . |
| 10 | Studies have shown that the middle-class image of the CAB volunteer , for example , has kept young people away . |
| 11 | Studies have shown that the men most vulnerable to problems in adjusting to retirement are career ‘ high-fliers ’ and the self-employed . |
| 12 | During the past 50 years numerous studies have shown that the relatives of schizophrenics have a higher than expected likelihood of contracting the disease . |
| 13 | These social-science studies have shown that the average lifetime of a ufologist is about two years , after which the individual faces a crisis point . |
| 14 | But more recent , detailed field studies have shown that the proboscis monkey is not an exception after all . |
| 15 | Several studies have shown that the concentration of carbon dioxide was as little as half the present concentration at the peak of the latest Ice Age , but it has not been clear if this is cause or effect . |
| 16 | Some studies have shown that the Pill decreases antibody production slightly , and others have shown more allergies , infections and autoimmune diseases among Pill-takers . |
| 17 | Studies have shown that the heat-labile exotoxin ( known as LT ) produced by pathogenic E. coli acts in the same way as the cholera enterotoxin . |
| 18 | Recent studies have shown that the risk of continued obesity is less than originally thought ( Shapiro et al . |
| 19 | Studies have shown that the food preferences of dogs are stimulated by their early experiences . |
| 20 | Population studies have shown that the susceptibility of institutionalised catatonic schizophrenics to cancer is very low . |
| 21 | Research studies have shown that the more cohesive the group the higher the levels of group productivity and member satisfaction . |
| 22 | Many studies have shown that the antibodies PSA and PSAP have over 90% sensitivity for prostatic adenocarcinomas . |
| 23 | However , several recent studies have shown that the ability to reason about and talk about epistemic states develops before the age of five years ( Abbeduto and Rosenberg , 1985 ; Perner and Leekam , 1986 ; Shatz et et al . , |
| 24 | However , a number of studies have shown that the allocation of council housing is likely to be discriminatory . |
| 25 | First , a number of historical studies have shown that the nuclear family was common before the industrial revolution , if only because people did not live long enough for older relatives to live near or with their younger kin . |
| 26 | Yet various studies have shown that the volume of strikes was far higher before than after 1950 . |
| 27 | Results from Hungary indicated that vaccines were exposed to heat during transport and that facilities for refrigeration were inadequate , and recent British studies have shown that the storage of vaccines is inadequate in general practices and health authority premises . |
| 28 | This work and previous studies have shown that the expression of the N-Oct 3 ( brain-2 ) transcript and protein is confined to cells of the nervous system in which it is the predominant Oct-protein [ 14 ] [ 11 , 15 ] [ 13 ] . |
| 29 | Recent studies have shown that the proximal variable region specifies the trinucleotide component of the DNA target sequence . |
| 30 | Yet studies have shown that the average domestic fridge temperature is 8–9C , and in some cases as high as 15C . |