plural of non-participation

A percentage of net income (rather than gross income) paid to somebody who has contributed to the making of a film.

(chemistry) Any of many effects in organic chemistry in which the course of a reaction, or its rate, is affected by the presence of a neighbouring functional group; anchimeric assistance

plural of neighbouring group participation

(usually science fiction) The use of technology in a way expected to change the course of human evolution.

plural of participant observer

Alternative form of participant observer

plural of participant-observer

(social sciences) One doing participant observation.

(social sciences) A research methodology used in some social sciences to gain familiarity with a group of individuals and their practices through an intensive involvement, usually over an extended period of time.