41.   Because its characteristics can be treated mathematically it is central to quality control via samples.

42.   Platinum is central to the success of JCI, which is now ranked third in the table of top South African mining and finance houses.

43.   To investigate with them ways of development education being increasingly central to their agenda, for example with bible colleges, presbyterian links and with main centres.

44.   One of the questions most central to this research was whether drivers can generally report fluctuating levels of subjective risk.

45.   Some fixed information is clearly central to the driving task while much variable information is likely to normally be peripheral to it.

46.   It has been suggested that information related to risk is central to driving, whereas other information is peripheral.

47.   The general proposition that an increase in demand was central to the industrial revolution was given its best-known exposition fifty years ago by Elizabeth Gilboy.

48.   The need for these movements shows the ineffectiveness and unwillingness of the present system to deal with issues central to the voter.

49.   At such a moment, creation is of the utmost importance, and is central to everything, so strong must have been the mingling of emotions.