| leader | A sequence near the 5' end of an RNAstrand or the amino terminus of a protein that functions intargeting or regulation. (09 Oct 1997) |
|---|---|
| leader peptide | <molecular biology> In the regulation of gene expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains several residues of the amino acid being regulated. Transcription is closely linked to translation and if translation is retarded by limited supply of amino acyl tRNA for the specific amino acid, the mode of transcription of the leader sequence permits full transcription of the operon genes, otherwise complete transcription of the leader sequence prematurely terminates transcription of the operon. (18 Nov 1997) |
| leader sequence | <molecular biology> In the regulation of gene expression for enzymes concerned with amino acid synthesis in prokaryotes, the leader sequence codes for the leader peptide that contains several residues of the amino acid being regulated. Transcription is closely linked to translation and if translation is retarded by limited supply of amino acyl tRNA for the specific amino acid, the mode of transcription of the leader sequence permits full transcription of the operon genes, otherwise complete transcription of the leader sequence prematurely terminates transcription of the operon. (18 Nov 1997) |
| leader sequences | Sequences at the end of either nucleic acids (DNA and RNA) or proteins that must be processed off to allow for a specific function of the mature molecule. (05 Mar 2000) |
| adolescent health services | Organised services to provide health care to adolescents, ages ranging from 13 through 18 years. (12 Dec 1998) |
| allied health occupations | Occupations of medical personnel who are not physicians, and are qualified by special training and, frequently, by licensure to work in supporting roles in the health care field. These occupations include, but are not limited to, medical technology, physical therapy, physician assistant, etc. (12 Dec 1998) |
| allied health personnel | Health care workers specially trained and licensed to assist and support the work of health professionals. Often used synonymously with paramedical personnel, the term generally refers to all health care workers who perform tasks which must otherwise be performed by a physician or other health professional. (12 Dec 1998) |
| allied health professional | An individual trained to perform services in the care of patients other than a physician or registered nurse; includes a variety of therapy technicians (e.g., pulmonary), radiology technicians, physical therapists, etc. (05 Mar 2000) |
| area health education centres | Education centres authorised by the comprehensive health manpower training act, 1971, for the training of health personnel in areas where health needs are the greatest. May be used for centres other than those established by the united states act. (12 Dec 1998) |
| attitude of health personnel | Attitudes of personnel toward their patients, other professionals, toward the medical care system, etc. (12 Dec 1998) |
| attitude to health | Public attitudes toward health, disease, and the medical care system. (12 Dec 1998) |
| behavioural health | An interdisciplinary field dedicated to promoting a philosophy of health that stresses individual responsibility in the application of behavioural and biomedical science knowledge and techniques to the maintenance of health and prevention of illness and dysfunction by a variety of self-initiated individual and shared activities. (05 Mar 2000) |
| care proxy, health | A health care proxy is one form of advance medical directive. Advance medical directives preserve the person's right to accept or reject a course of medical treatment even after that person becomes mentally or physically incapacitated to the point of being unable to communicate those wishes. There are two basic forms of advance directives: 1. A living will, in which the person outlines specific treatment guidelines that are to be followed by health care providers. 2. A health care proxy (also called a power of attorney for health-care decision-making) in which the person designates a trusted individual to make medical decisions in the event that he or she becomes too incapacitated to make such decisions. Advance directive requirements vary greatly from one jurisdiction to another and should therefore be drawn up in consultation with an attorney who is familiar with the laws of the particular jurisdiction. (This entry is based upon material from the National MS Society). (12 Dec 1998) |
| radiologic health | Health concerns associated with the effects of radiation on the environment and on public and personal health. (12 Dec 1998) |
| pan american health organization | <organisation> WHO regional office for the americas acting as a coordinating agency for the improvement of health conditions in the hemisphere. The four main functions are: control or eradication of communicable diseases, strengthening of national and local health services, education and training, and research. (21 Jun 2000) |