11.   At present, the development of such components relies heavily on individual initiatives taken by historians whose own research involves some element of computation.

12.   Hypnosis involves several elements.

13.   It also involves subtle elements of class struggle spiced with more than just a touch of politics.

14.   Language on clothing almost always involves an element of Surrealist displacement, the transfer of something visually familiar to an unusual location.

15.   Michael is collaborating with the director Bob McGrath and the librettist Matthew Maguire, and he says that the libretto involves elements of chaos theory.

16.   Mrs. Wright has handled several cases involving some elements that have been combined in the Jones suit.

17.   Murders used to involve an element of mystery, too.

18.   Still, the talk of a right-wing conspiracy, involving elements in the news media, opposition politics and the business world, is gaining credence here.

19.   Working a drill rig takes teamwork and coordination, with even simple jobs on platforms, like cleaning and painting, involving an element of risk.

20.   Police said the disturbances appeared to involve an element of organization on both sides.