The centre is organised in two dimensions. One concerning about scientific animation (the "poles")and one concerning research itself (the projects). The poles aim putting together people belonging to a community with "similar" scientific interests through seminars, invitations, foresight discussions and the similar. The projects aim putting together researchers motivated by a specific subject of scientific investigation, normally a fundamental one. Neither the poles, nor the projects are for ever. They are discussed and, if the case, innovated at each research assessment of the laboratory.