Example sentences of "have been suggested that a [adj] " in BNC.
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| 1 | It has been suggested that a hot layer at the core-mantle boundary , generated by convection in the mobile outer core , produces a circulating system extending up through the entire mantle ( Fig. 2.17(C) ) . |
| 2 | It has been suggested that a mobile chemical signal is the causal agent linking the local wound stimulus to the distant systemic response , and candidates such as oligosaccharides , abscisic acid and a polypeptide have been put forward . |
| 3 | The Lillian Snelling works , for instance , are of interest to Kew , and it has been suggested that a joint exhibition could be mounted . |
| 4 | Similarly it has been suggested that a weak hydrogen bond , which is strong enough to induce miscibility can form between the carbonyl unit of poly ( methyl methacrylate ) and the α-hydrogen of poly ( vinyl chloride ) ( example 3 where ) . |
| 5 | Thus it has been suggested that a key difference between invertebrate and vertebrate brains is that in the former a great deal of power and responsibility could be invested in a single cell or even synapse which in the vertebrate nervous system would be more widely distributed . |
| 6 | The first wave of aggregation induced by adrenaline is associated with uptake of calcium by platelets , and it has been suggested that a localised flux of calcium into the platelet plasma membrane enables the platelets to stick together ( Gerrard et al , 1981 ) . |
| 7 | It has been suggested that a freezing rate of at least 0.1 °C per minute and temperatures of -5 to -10°C are required for rock shattering to occur . |
| 8 | For samples which fall within the appropriate range it has been suggested that a universal calibration curve can be constructed to relate V R and M , by assuming that the hydrodynamic volume of a macromolecule is related to the product , where [ η ] is the intrinsic viscosity of the polymer in the carrier solvent used , at the temperature of measurement . |
| 9 | On the basis of this and other studies , it has been suggested that a functional physiological specialisation does exist in the human colon , with the proximal segments representing sites of mixing and storage of contents , whereas the distal ones would act as a conduit to propel faeces to the rectal ampulla . |
| 10 | It has been suggested that a considerable number of healthy people previously infected with H pylori might remain seropositive despite the spontaneous elimination of the organisms . |
| 11 | It has been suggested that a giant meteorite falling in the Atlantic would produce a wave twenty thousand feet high . |
| 12 | GCHQ has denied any involvement in intercepting , recording or disclosing the royal recordings … although it 's been suggested that an internal inquiry may already be underway at the Cheltenham centre . |