International Association for the Advancement of High Pressure Science and Technology. International Association for Structural Mechanics in Reactor Technology. International Conference on Pressure Vessel Technology National Association for the Advancement of Colored People. American Association for the Advancement of Science. World Association for the Advancement of Veterinary Parasitology. American Association for the Advancement of Science 3d International Conference on pressure Vessel Technology. American Association for the Advancementof Science British Association for the Advancement of Science