The second is the meeting between ULTIMATE-I and NESTOR, both Research and Innovation Staff Exchange (RISE) projects from Marie Skłodowska-Curie Action involving researchers from Spain and Argentina, amount other countries, from left to right: Alejandro Butera, Myriam Aguirre (both ULTIMATE-I) and Gerardo Goya and Enio Lima Jr (NESTOR), both RISE project at Instituto de Nanociencia y Materiales de Aragón (INMA).