A research program (UK: research programme) is a professional network of scientists conducting basic research. The term was used by philosopher of scienceImre Lakatos to blend and revise the normative model of science offered by Karl Popper's falsificationism and the descriptive model of science offered by Thomas Kuhn's normal science. Lakatos found falsificationism impractical and often not practiced, and found normal science—where a paradigm of science, mimicking an exemplar, extinguishes differing perspectives—more monopolistic than actual.