21.  We previously showed that the excessive activation of tissue type plasminogen activator, mediated by microvascular endothelial cells, plays a crucial role in the development of gastric mucosal injury induced by ischaemia reperfusion in rats.

22.  In contributing to the preparation of graduates for entry to the legal profession the Unit plays a crucial role in the maintenance of high standards of practical legal knowledge.

23.  In an address to the English Association, Henry Newbolt had himself expressed his antipathy to institutions of any kind (see p.32), yet both Newbolt and the Association played a crucial role in the preparation of this government report.

24.  According to the WWF, timber importers have a crucial role in attaining the WWF's 1995 target date for" sustainable timber production".

25.  "Basically we are an experienced team, but the youngsters are going to play a crucial role in trying to keep us up there."

26.  Three years later the introduction of a new registration system for despatches and telegrams played a crucial role in changing the position of the more senior officials, the first-division clerks, and giving them, far more than in the past, a share in policy-making.

27.  General von Schweinitz, the Prussian military plenipotentiary in St Petersburg, seems to have played in 1866 a crucial role in explaining and justifying to an at first hostile Alexander II Bismarck's policy in Germany.

28.  In a great many works of an advanced nature (research material, monographs etc.) style will not play a crucial role, since the content will be unavailable in any other form.

29.  Telecommunications play a crucial role in information technology.

30.  Here was a creative writer of great historical importance in vernacular Italian, as also in neo-Latin; one who played a crucial role in the promulgating of manuscripts of lost classical texts which embodied the ancient culture and could propagate that culture anew in his own time; whose creative writing variously reflected the new access to ancient literature; and whose overall achievement helped to ensure that classical scholarship, in its work