National Archives of Ireland - holds records of departments and other public entities of the Republic of Ireland (Eire), encompassing all Irish counties but the six of Northern Ireland (Down, Antrim, Armagh, Tyrone, Londonderry and Fermanagh).

abbreviation of thallium-doped sodium iodine, scintillator material used in most gamma-cameras

NASA Astrobiology Institute

A cooperative group of network advertisers which has developed a set of privacy principles in conjunction with the Federal Trade Commission. The NAI provides consumers with explanations of Internet advertising practices and how they affect both consumers and the Internet. See networkadvertising.org for more information.

Network Advertising Initiative

Network Access Identifier

See NCC service.

Non-accidental injury (to a child).

reed pipe

New and Improved

named area of interest