| ABCDE | airway, breathing, circulation, disability, exposure [in trauma patients]; botulism toxin pentavalen... |
|---|---|
| BEI | back-scattered electron imaging; biological exposure indexes; butanol-extractable iodine |
| DED | date of expected delivery; defined exposure dose; delayed erythema dose |
| DENT | Dental Exposure Normalization Technique |
| EF | ectopic focus; edema factor; ejection fraction; elastic fibril; electric field; elongation factor; e... |
| occupational neurosis | Professional neurosis, a disorder of a group of muscles used chiefly in one's occupation, marked by the occurrence of spasm, paresis, or incoordination on attempt to repeat the habitual movements; e.g., writer's cramp; probably a focal dystonia. Synonym: craft palsy, functional spasm. (05 Mar 2000) |
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| occupational safety and health administration | One of the U.S. Agencies responsible for regulation of biotechnology. The major law under which the agency has regulatory powers is the Occupational Safety and Health act. (09 Oct 1997) |
| occupational spasm | Professional spasm, obsolete term for occupational dystonia. (05 Mar 2000) |
| occupational therapist | <specialist> An individual trained to help people manage the daily activities of living, such as dressing, grooming or cooking, and regaining vocational skills. (05 Mar 2000) |
| occupational therapy | A form of therapy that encourages and instructs manual activities for therapeutic or remedial purposes in mental and physical disorders. (27 Sep 1997) |
| occupational therapy department, hospital | Hospital department responsible for the administration and provision of any occupational or work activity for remedial purposes. (12 Dec 1998) |
| united states occupational safety and health administration | An office in the department of labour responsible for developing and establishing occupational safety and health standards. (12 Dec 1998) |
| abnormalities, radiation-induced | Congenital changes in the morphology of organs produced by exposure to ionizing or non-ionizing radiation. (12 Dec 1998) |
| accidents, radiation | Accidental dispersal of radioactive materials from a radiation source. Accidents at nuclear reactors can involve large groups of the population from dispersion of radioactivity into the environment and through fallout or a few individuals with high injurious doses. (12 Dec 1998) |
| acoustic radiation | The fibres that pass from the medial geniculate body to the transverse temporal gyri of the cerebral cortex by way of the sublentiform part of the internal capsule. Synonym: radiatio acustica. (05 Mar 2000) |
| acute radiation syndrome | <syndrome> A syndrome caused by exposure of the body to large amounts of radiation, (e.g., from certain forms of therapy, accidents, and nuclear explosions; it is divided into three major forms which are, in ascending order of severity, the haematogic, gastrointestinal, and central nervous system-cardiovascular forms; its clinical manifestations are divided into prodromal, latent, overt, and recovery stages. (05 Mar 2000) |
| adaptive radiation | <chemistry> The evolution of new speciesor sub-species to fill unoccupied ecological niches. (06 May 1997) |
| alpha radiation | <physics, radiobiology> The most easily absorbable type of radiation, it consists of a stream of alpha particles, doubly ionised helium nuclei which are electrically charged and produce intense ionisation in matter. Alpha radiation can be deflected in electromagnetic fields. (09 Oct 1997) |
| annihilation radiation | The radiation resulting when a positron from beta positive decay comes to rest. It encounters an electron, and they annihilate each other and convert their rest mass into two 0.51-MeV gamma rays emitted in exactly opposite directions. (05 Mar 2000) |
| background radiation | <radiobiology> Level of environmental radation due to background sources. Background sources can be natural, such as cosmic rays and natural radioactive elements (principally radon, but including other elements such as isotopes of potassium (which people get substantial amounts of in foods like bananas)). They can also be man-made, such as from fossil-fuel combustion, everyday leakage from nuclear activities, and leftover from atmospheric nuclear weapons tests. Background radiation is usually distinguished from acute radiation, such as from medical X-rays, nuclear accidents, radioisotope therapy, or other short-term doses. The man-made contribution to background radiation is quite small compared to the natural contribution, medical uses dominate human exposure to acute radiation. (09 Oct 1997) |