| NAC | N-acetylcysteine; National Asthma Center; National Audiovisual Center; Noise Advisory Council |
|---|---|
| NAS-NRC | National Academy of Science-National Research Council |
| NCD | National Commission on Diabetes; National Council on Drugs; neurocirculatory dystonia; nitrogen clea... |
| NRC | National Research Council; National Response Center; normal retinal correspondence; not routine care... |
| NRCC | National Registry in Clinical Chemistry; National Research Council of Canada |
| communication aids for disabled | Equipment that provides mentally or physically disabled persons, who cannot speak effectively, with a means of communication. The aids include display boards, typewriters, cathode ray tubes, computers, and speech synthesisers. The output of such aids includes written words, artificial speech, language signs, morse code, and pictures. (12 Dec 1998) |
|---|---|
| hearing aids | Devices which amplify sound to help persons with hearing loss. (12 Dec 1998) |
| lymphoma, aids-related | B-cell lymphoid tumours that occur in association with aids. Patients often present with an advanced stage of disease and highly malignant subtypes including burkitt lymphoma, immunoblastic large-cell lymphoma, small non-cleaved-cell lymphoma and diffuse large-cell lymphoma. The tumours are often disseminated in unusual extranodal sites and chromosomal abnormalities are frequently present. It is likely that polyclonal B-cell lymphoproliferation in aids is a complex result of ebv infection, HIV antigenic stimulation, and T-cell-dependent HIV activation. (12 Dec 1998) |
| bibliography, national | A bibliography which lists all the books and other publications published, or distributed in significant quantity, in a particular country. Sometimes the term is used with respect to the new publications published within a specific period, and sometimes with respect to all those published within a lengthy period of many years. It is also used to indicate a bibliogrpaphy of publications about a country (whether written by its nationals or not) and those written in the language of the country as well as those published in it. (12 Dec 1998) |
| national academy of sciences | A united states organization of distinguished scientists and engineers established for the purpose of investigating and reporting upon any subject of art or science as requested by any department of government. The national research council organised by nas serves as the principal operating agency to stimulate and support research. (12 Dec 1998) |
| National Cancer Information Service | <address, organisation> National Cancer Institute, cancer Information Service, office of Cancer Communications, Building 31, Room 10A24, 9000 Rockville Pike, Bethesda, MD 20892 (27 Sep 1997) |
| national centre for health care technology | A centre in the public health service which coordinates and administers a program of research, demonstrations, and evaluations of medical technologies and assessments of health care technology. (12 Dec 1998) |
| national centre for health statistics | A centre in the public health service which is primarily concerned with the collection, analysis, and dissemination of health statistics on vital events and health activities to reflect the health status of people, health needs, and health resources. (12 Dec 1998) |
| national environmental policy act | A federal law enacted in 1969 that requires all federal agencies to consider and analyse the environmental impacts of any proposed action. NEPA requires an environmental impact statement for major federal actions significantly affecting the quality of the environment. NEPA requires federal agencies to inform and involve the public in the agency's decision making process and to consider the environmental impacts of the agency's decision. (05 Dec 1998) |
| National Formulary | An official compendium formerly issued by the American Pharmaceutical Association but now published by the United States Pharmacopeial Convention for the purpose of providing standards and specifications which can be used to evaluate the quality of pharmaceuticals and therapeutic agents. (05 Mar 2000) |
| national health planning information centre | A centre in the health resources administration division of planning methods and technology which provides access to current information on health planning and resources development. (12 Dec 1998) |
| national health programs | Components of a national health care system which administer specific services, e.g., national health insurance. (12 Dec 1998) |
| national institute for occupational safety and health | An institute of the centres for disease control and prevention which is responsible for assuring safe and healthful working conditions and for developing standards of safety and health. Research activities are carried out pertinent to these goals. (12 Dec 1998) |
| national institute of mental health | A component of the national institutes of health concerned with research, overall planning, promoting, and administering mental health programs and research. (12 Dec 1998) |
| National Institutes of Health | <organisation> A nonregulatory U.S. Federal agency which has oversight of research activities that the agency funds. (09 Oct 1997) |