41.   Their shares surged over the last two years as a drilling boom prompted by technological improvements cut the price of finding oil.

42.   Their shares surged over the last two years because of drilling boom prompted by technological improvements that cut the price of finding oil.

43.   Their shares surged over the last two years as technological improvements cut the price of finding oil, prompting a drilling boom.

44.   With its technological improvements and hospitable atmosphere, it is comparable to a research room in the new British Library in London.

45.   Bush has said he wants to deal with climate change largely through voluntary action and technological improvements.

46.   Despite technological improvements, the company said in May it would turn the Newton division into an independent subsidiary.

47.   Improvements in productivity can be achieved through greater skills, better management and continuous technological improvements.

48.   It made several other recommendations on improving the electoral system and completing technological improvements already underway.

49.   Many industries will require higher skilled, productive staff and fewer employees as a result of structural adjustments and technological improvements.

50.   Technological improvements and innovation in housing can be carried outon two fronts - by improving the product itself and by improving theproduction process.