Example sentences of "it is known that [adj] " in BNC.
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| 1 | Returning to the visual system , it is known that simultaneous destruction of both visual cortex and superior colliculus produces complete insensitivity to brief light flashes in monkeys whereas destruction of either structure in isolation has no effect ( Mohler and Wurtz 1977 ) . |
| 2 | It is known that that material is stored in the republic and then brought north for use by the terrorists . |
| 3 | It is known that Israeli doctors were the first outside medical experts to reach the scene . |
| 4 | As pointed out above , it is known that extensive interconnection is a characteristic of the neocortex : thus the great majority of the input to any cell comes from other parts of the neocortex itself , and similarly most of the outputs go to other parts of the neocortex . |
| 5 | In addition to the probable decreased prostacyclin production in the region of the atheromatous plaque possibly due to inhibition of prostacyclin synthetase by lipid peroxides it is known that certain fatty acid hydroperoxides also induce platelet aggregation ( Mickel & Horbar , 1974 ) . |
| 6 | Now it is known that ripening tomatoes ripen faster when placed together on a window ledge , because they produce ethylene gas which stimulates their neighbours to faster and synchronous ripening . |
| 7 | It is known that feral pigeons may convey diseases which are transmissible to man and so large congregations of birds may cause public harm . |
| 8 | Others within the newly united Zanu-PF , including the Provincial Chairman , Mr Eddison Zvobgo and Mr Dumiso Dabangwa , have gone on the record against a one-party state and it is known that many in Mr Nkomo 's Zapu , as well as several middle level Zanu officials , are also opposed . |
| 9 | It is known that many medieval villages in England became deserted through decline and shift of population , and the ravages of disease . |
| 10 | It is known that many families emigrated to Canada during the fifty years from 1818 to 1868 and a great number of them came from the crofts . |
| 11 | It is known that such patients may have one of a variety of conditions such as arteriovenous malformations in the small intestine or colon ( including angiodysplasia and telangiectasia ) , Meckel 's diverticulum , Crohn 's disease , and small bowel smooth muscle tumours . |
| 12 | It is known that fatty acid peroxides inhibit prostacyclin generation ( Moncada et al , 1976 b ; Salmon et al , 1978 ) . |
| 13 | It is known that all forms of research literature do obsolesce , and that there are considerable differences between the pattern of obsolescence of different subject areas . |
| 14 | It is known that all the GTP binding proteins contain three consensus sequences at the guanine nucleotide binding site which are GXXXXGK , DXXG and NKXD ( 8 ) . |
| 15 | Such major physical impacts are fairly easy to assess , but not enough work has yet been done to assess the effect of visitors on wildlife itself , though it is known that shy species will decline , while common species will often increase , and that fauna both on land and in water will decline faster than flora ( Liddle and Scorgie , 1980 ) . |
| 16 | Dr Andrew Macleod , specialist in endocrinology at St Thomas 's Hospital , London , says : ‘ It is known that increased testosterone improves the libido , but it 's unlikely it will ever be used as a treatment . |
| 17 | This finding may be important , since it is known that chemical modification of lysine amino groups of the apoprotein may interfere with the specific LDL receptor binding and hence clearance of LDL ( Gonen et al , 1981 ; Kim & Kurup , 1982 ; Witzum et al , 1982 ) . |
| 18 | It is known that some of the unicellular organisms in the sea today are only one or two million years old ( very little in geological terms ) , in fact they are probably as young as man himself ! |
| 19 | For example , though it is known that some 80 per cent of pedestrian fatalities in Britain occur on built-up roads , statistics are not available separately for residential areas . |
| 20 | It is known that some of the settings in such brooches are glass , but many , as in other types of brooch , especially in Kent , are of garnet . |
| 21 | The history of the domestication of many of the fruit trees of the tropics may therefore never be disentangled , though it is known that some of them at least , like the duku and lanseh , forms of Lansium domesticum ( Meliaceae ) , are apomicts . |
| 22 | ‘ It is known that some door supervisors have convictions and a history of violence . |
| 23 | Supplies of red stones were already available in the form of garnets , and it is known that these were much used by Hellenistic and Roman jewellers . |
| 24 | These mediators are probably responsible for pathological changes because it is known that these mediators can induce an inflammatory response by changing capillary permeability , inducing inflammatory cell infiltration , and activating the inflammatory cells . |
| 25 | Emptying of radioopaque markers does not reflect gastric emptying of food components , as it is known that indigestible particles larger than 1.5 mm are emptied from the stomach during the interdigestive period . |
| 26 | It is known that wealthy industrialists joining the upper class by virtue of a newly acquired spending power , sought to buy into the status of the latter by becoming landowners and patrons of art . |
| 27 | In the presence of malignancy it is known that different tissues can respond in different ways . |
| 28 | But it is known that this custom can have dire consequences both for the woman and her children . |
| 29 | It is known that this is almost exclusively the result of the age related increase in the prevalence of H pylori infection . |
| 30 | It is known that volatile organic compounds dissolved in groundwater will release molecules into the vapour phase at the water-table , and these can then migrate upwards through the unsaturated zone . |