11.   The research was carried out by a team of scientists at Edinburgh University.

12.   The way the research was carried out raises doubts about the results.

13.   There are, too, a number of experimental ways of carrying out research into magazine ads.

14.   They are carrying out research to establish exactly why so many species of songbird are disappearing.

15.   This in turn will generate an online archive for those keen to carry out research.

16.   Very little research has been carried out on teaching methods and the effectiveness of learning in nurse education.

17.   When the research is carried out by academics from outside, critical analysis creates enormous tensions.

18.   In taxonomic botany, for instance, research is carried out in many institutions world-wide, rather than within national frontiers.

19.   The present research was carried out to investigate the decay of short-term memory and show that rehearsal of an item increases the likelihood of its recall.

20.   At present, much research is being carried out to improve the efficiency of photocells.