Example sentences of "occur at a [noun sg] of " in BNC.
Next page| No | Sentence |
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| 1 | The pattern consisted of repetitive peristaltic contractions in the body of the oesophagus not related to swallowing and occurring at a rhythm of four to eight contractions per minute and lasting for periods of two to eight minutes . |
| 2 | In a study undertaken over a two-week period , Tom Tadecki , research director of the International Coalition Against Violent Entertainment , found that more than 33 per cent of its programmes involved some form of aggression , with violent acts occurring at a rate of 10 per hour . |
| 3 | The figures for BBC 1 and BBC 2 were 10 per cent , with violent acts occurring at a rate of 2.5 per hour on BBC 1 , and two on BBC 2 . |
| 4 | Lown and Wolf classified ventricular extrasystoles occurring at a rate of less than one per minute as isolated and of little prognostic significance , whereas those occurring at a rate of more than one per minute were more indicative of an unfavourable prognosis . |
| 5 | Lown and Wolf classified ventricular extrasystoles occurring at a rate of less than one per minute as isolated and of little prognostic significance , whereas those occurring at a rate of more than one per minute were more indicative of an unfavourable prognosis . |
| 6 | Other electrocardiographic abnormalities , in addition to ventricular extrasystoles occurring at a rate of more than 1/min , regarded as of ‘ sinister ’ importance — that is , markers of potentially serious complications are , ST segment increase or depression of more than 1 mm , supraventricular tachycardia ( three or more consecutive supraventricular extrasystoles at a rate of more than 130/min ) , second or third degree heart block , ventricular bigemini or trigemini , ventricular tachycardia , ventricular fibrillation or asystole . |
| 7 | Rhyming letters occurred at a frequency of 1 in 6 . |
| 8 | Their adoption in Britain occurred at a time of high unemployment . |
| 9 | In the Netherlands , however , it appears that for much of the past 30 years , a substantial reduction in levels of imprisonment occurred with no greater rise in crime than occurred in Britain ; and that reduction occurred at a time of rising crime in Holland . |
| 10 | Certainly the fringe banking crisis of 1973–74 occurred at a time of a large inflow of new institutions into the market as a result of the perceived liberal market conditions brought about through competition and credit control . |
| 11 | In fact , from their data it can be extrapolated that the maximal trophic effect of gastrin occurs at a concentration of approximately 500 pmol/l . |
| 12 | In Fig. 4.6(a) , for example , with one-phase-on excitation of a three.phase motor the crossover point occurs at a torque of 0.5 TPK , which is 0.6 times the pull-out torque with high inertia ( 0.83Tpx ) . |
| 13 | This occurs at a potential of +50mV inside that part of the axon with respect to the outside . |
| 14 | Maximum ozone concentration occurs at a height of 16–18 km in polar latitudes and at about 25 km over the equator . |
| 15 | He insisted that ‘ the critical point of upturn ’ ( point A in Figure 5.8 ) would occur at a level of output ‘ which is highly relevant for practical purposes ’ . |
| 16 | However matter itself is predicted to be intrinsically unstable on such a scale : the quantum theory implies that evaporation of matter through gravitational interaction with black holes would occur at a rate of around 10 -50 per second , a thousand trillion times faster than spontaneous fusion . |
| 17 | The crash had occurred at a time of clear visibility and good weather conditions . |
| 18 | MYSTERY glass explosions have occurred at a number of UK buildings constructed during the last decade . |
| 19 | Estimated to occur at a frequency of 5% to 18% of the general population , and rising sharply in industrialized countries . |
| 20 | These changes in form thus occur at a multitude of levels , from the molecular to that of an entire population , and are conserved by genetic transmission . |