Marie Curie theory of "radioactivity" (a term that she coined), techniques for isolating radioactive isotopes, and the discovery of two elements, polonium and radium. Under her direction, the world's first studies into the treatment of neoplasms were conducted using radioactive isotopes. She founded the Curie Institutes in Paris and in Warsaw, which remain major centres of medical research today. During World War I, she developed mobile radiography units to provide X-ray services to field hospitals. While a French citizen, Marie Skłodowska Curie, who used both surnames, never lost her sense of Polish identity. She taught her daughters the Polish language and took
Pierre and Marie Curie University Pierre and Marie Curie University Pierre and Marie Curie University (), titled as UPMC from 2007–2017 and also known as Paris 6, was a public research university in Paris, France from 1971 to 2017. The university is located on the Jussieu Campus in the Latin Quarter of the 5th arrondissement of Paris, France. In 2010, the Sorbonne University group of cooperating instutitions was created, with UPMC as a member. UPMC merged with Paris-Sorbonne University, a fellow Sorbonne group member, into a new combined Sorbonne University on 1 January 2018. Paris VI was one of the inheritors of the faculty of