International Union for Pure and Applied Physics
The IOP adheres to The International Union of Pure and Applied Physics (IUPAP). IUPAP was established in 1922 in Brussels with 13 Member countries and the first General Assembly was held in 1923 in Paris. It is part of the International Council for Science (ICSU) family.
The aims of IUPAP are to stimulate and promote international cooperation in physics; to sponsor suitable international meetings and to assist organizing committees; to foster the preparation and the publication of abstracts of papers and tables of physical constants; to promote international agreements on other use of symbols, units, nomenclature and standards; to foster free circulation of scientists; to encourage research and education.