Example sentences of "at which [vb base] a " in BNC.

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1 This narrowing or furring up of the arteries can slow down the flow of the blood to your heart ( giving rise to the condition known as angina ) or even cut off the supply completely , at which point a heart attack then occurs .
2 The trunks that fall over sometimes take root several metres away from the base of the tree , at which point a new tree will grow up .
3 This process is repeated until the end node of the graph is reached ( ** ) , at which point a complete candidate string has been generated ( e.g. from figure 2.8 , this would have found ljadc ) .
4 ‘ I 'm not listening , ’ said Joe , at which point a middle-aged woman came in , found her way through the maze and reached the counter .
5 This increase is expected to last about 18 months at which point a further upgrade will be required .
6 Close on line monitoring of the effects of interferon on viral replication revealed that in several patients HBeAg and HBV-DNA serum values decreased continuously and were almost negative when treatment was stopped ( week 24 ) at which point a relapse occurred .
7 At which point a child says , " It 's alright , I 've brought a magic spade with me .
8 At which point an editor would say , that is not how it works .
9 If the gain there is large enough , these new modes burst into oscillation : if not , transphasing continues to a renewed coincidence with the oscillating frequencies , at which point an inverse period-doubling cascade ensues , leading eventually to a steady-state response .
10 At a case status hearing on 17 August , the court appointed a public defender to represent him and then adjourned the proceedings until a further status hearing on 3 January 1991 , at which time a trial date would be set .
11 Patients were asked to return the collection at 9 am the same morning , at which time a 10 ml blood sample was taken .
12 This means that the SPR is left in the ‘ Replied to ’ state until the authorised work has been completed , at which time an SSR should be generated to close off the SPR and inform users of the change .
13 This means that the SPR is left in the ‘ Replied to ’ state until the authorised work has been completed , at which time an SSR should be generated to close off the SPR and inform users of the change .
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