SOLEIL Gif-sur-Yvette and Saclay, which host other facilities for nuclear and particle physics. The facility is an associate member of the University of Paris-Saclay. SOLEIL also hosts IPANEMA, the European research platform on ancient materials (archaeology, palaeontology, past environments and cultural heritage), a joint CNRS / French Ministry of Culture and Communication research unit. SOLEIL covers fundamental research needs in physics, chemistry, material sciences, life sciences (notably in the crystallography of biological macromolecules), earth sciences, and atmospheric sciences. It offers the use of a wide range of spectroscopic methods from infrared to X-rays, and structural methods such as X-ray diffraction and
Cité Soleil particularly in the marshy Brooklyn area which includes Cité Carton. Armed gangs roamed the streets and terrorized the neighborhood. Every few blocks was controlled by one of more than 30 armed factions. Though the gangs no longer rule, murder, rape, kidnapping, looting, and shootings are still common. The area has been called a "microcosm of all the ills in Haitian society: endemic unemployment, illiteracy, non-existent public services, unsanitary conditions, widespread crime and armed violence". After the devastating 2010 earthquake, it took nearly two weeks for relief aid to arrive in Cité-Soleil. Most of the residents of Cité-Soleil are children or