Our Institute hosts Research Groups, Nuclei, Laboratories, and Centers. In all these, internal and external researchers, and graduate and undergraduate students, all interact and organize themselves around research topics and a leader. These initiatives represent the constant effort to share experiences and our commitment with scientific, technological, and artistic production, on a regular and high quality basis. Groups are formed by registration in CNPq's Research Groups Directory. Nuclei, Laboratories, and Centers are registered as initiatives internal to our Institute, characterized by the association of internal researchers belonging to one or more CNPq Research Groups and, also, students and external researchers all committed in developing scientific investigation activities related to a common research area and topic of inquiry. The creation of all these structures are supported by our Research Secretariat.