| cancer, colon: screening and surveillance | Colon cancer is both preventable and curable. It is preventable by removing precancerous colon polyps. It is curable if early cancer is surgically removed before cancer spread to other parts of the body. Therefore, if screening and surveillance programs were practiced universally, there would be a major reduction in the incidence and mortality of colon cancer. (12 Dec 1998) |
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| biological containment | <molecular biology> Refers to any number of methods to contain genetically engineered organisms by creating biochemical barriers to prevent them from growing outside the laboratory. In the case of bacteria and yeasts, genes in the organisms may be altered so that they need to have a supply of a nutrient that is normally found only in the laboratory. (21 Mar 1998) |
| physical containment | <cell culture> Creation of physical barriers to keep genetically engineered organisms inside the laboratory. (31 Dec 1997) |
| plasma containment | <physics> In physics experiments or nuclear fusion experiments, operation is intended to prevent, in an effective and sufficiently prolonged manner, the particles of a plasma from striking the walls of the container in which this plasma is produced. Plasma confinement is a fundamental requirement for obtaining net energy from a fusion plasma. The reason is that scattering (hence diffusion) is at least an order of magnitude more probable than fusion reactions. Hence, without confinement, the plasma fuel would disperse before enough fusion reactions could take place. (31 Dec 1997) |
| containment | The concept of regional or global eradication of communicable disease, proposed by Fred Lowe Soper (1893-1977) in 1949 for the eradication of smallpox. (05 Mar 2000) |
| containment of biohazards | Provision of physical and biological barriers to the dissemination of potentially hazardous biologically active agents (bacteria, viruses, recombinant DNA, etc.). Physical containment involves the use of special equipment, facilities, and procedures to prevent the escape of the agent. Biological containment includes use of immune personnel and the selection of agents and hosts that will minimise the risk should the agent escape the containment facility. (12 Dec 1998) |
| containment vessel | <radiobiology> Gas-tight shell or other enclosure around a fusion (or fission) reactor, to prevent accidental leakage of radioactive contents. (09 Oct 1997) |
| population surveillance | <epidemiology> Ongoing scrutiny of a population (general population, study population, target population, etc.), generally using methods distinguished by their practicability, uniformity, and frequently their rapidity, rather than by complete accuracy. (12 Dec 1998) |
| post-marketing surveillance | Procedure implemented after a drug has been licensed for public use, designed to provide information on use and on occurrence of side effects, adverse effects, etc. (05 Mar 2000) |
| product surveillance, postmarketing | Surveillance of drugs, devices, appliances, etc., for efficacy or adverse effects, after they have been released for general sale. (12 Dec 1998) |
| sentinel surveillance | Monitoring of rate of occurrence of specific conditions to assess the stability or change in health levels of a population. It is also the study of disease rates in a specific cohort, geographic area, population subgroup, etc. To estimate trends in larger population. (12 Dec 1998) |
| surveillance | Oversight; watch; inspection; supervision. "That sort of surveillance of which . . . The young have accused the old." (Sir W. Scott) Origin: F, fr. Surveiller to watch over; sur over + veiller to watch, L. Vigilare. See Sur-, and Vigil. Source: Websters Dictionary (01 Mar 1998) |
| immune surveillance | <immunology> The hypothesis that lymphocyte traffic ensures that all or nearly all parts of the vertebrate body are surveyed by visiting lymphocytes in order to detect any altered self material, for example mutant cells. (18 Nov 1997) |
| immunological surveillance | <immunology> The hypothesis that lymphocyte traffic ensures that all or nearly all parts of the vertebrate body are surveyed by visiting lymphocytes in order to detect any altered self material, for example mutant cells. (18 Nov 1997) |
| immunologic surveillance | The theory that T-cells monitor cell surfaces and detect structural changes in the plasma membrane and/or surface antigens of virally or neoplastically transformed cells. (12 Dec 1998) |