Negotiation and U.S. ratification. Back row, left to right: Mexican President Carlos Salinas de Gortari, U.S. President George H. W. Bush, and Canadian Prime Minister Brian Mulroney, at the initialing of the draft North American Free Trade Agreement in October 1992.
Direct memory access. Direct memory access (DMA) is a feature of computer systems that allows certain hardware subsystems to access main system memory (RAM), independent of the central processing unit (CPU).
American Academy of Dermatology. The American Academy of Dermatology (AAD) is one of the largest organizations of dermatologists in the world. It was founded in 1938 and represents 18,000 dermatologists in the United States, Canada, and around the world. The Academy grants Fellowships and Associate Memberships, as well as Fellowships for Nonresidents of the USA or Canada. Since 1979, the AAD also publishes a monthly medical journal, the Journal of the American Academy of Dermatology.