51.  However, such quantities are difficult to measure and so have received less attention.

52.  As an example of such effects we consider stratified flows, which have received particular attention because of their meteorological applications.

53.  Perhaps the region that has received most attention in the press in this context is Amazonia.

54.  But because it is happening in Africa it has received little attention.

55.  The economic consequences for food crops and other plants of the resulting increase in ultraviolet radiation have received less attention.

56.  In contrast, it is the ergonomics of the hardware and the physical environment that have received most attention.

57.  Overall, job satisfaction received negligible attention.

58.  In contrast the physical environment and equipment specifications have received considerable attention.

59.  His wife also received medical attention after the nail bomb was dropped from a bridge on to their tour bus and other nearby vehicles in Cairo.