| solid-state detector | A detector that uses a crystalline scintillating material rather than an ionization chamber to detect or measure radiation. (05 Mar 2000) |
|---|---|
| solid state laser | <radiobiology> A laser using a transparent substance (crystalline or glass) as the active medium, doped to provide the energy states necessary for lasing. The pumping mechanism is the radiation from a powerful light source, such as a flashlamp. The ruby, Nd-YAG, and Nd:glass lasers are solid-state lasers. (09 Oct 1997) |
| standard state | <chemistry> The most stable form of a substance at 298 K and 1 atmosphere of pressure. (09 Jan 1998) |
| state | <chemistry> The condition of the system at a given time, it is usually defined by an equation which is called an equation of state. (09 Jan 1998) |
| state dentistry | Control, direction and financing of the total dental care of the population by a national government. (12 Dec 1998) |
| state-dependent learning | Learning during a specific state of sleep or wakefulness, or during a chemically altered state, where retrieval of learned information (e.g., as measured by performance of a learned response) cannot be demonstrated unless the subject is restored to the state that originally existed during learning. (05 Mar 2000) |
| state function | <chemistry> A property that is independent of the pathway, this function can be used to define or specify the state of the system. (09 Jan 1998) |
| state government | The complex of political institutions, laws, and customs through which the function of governing the state is carried out (u.s. Only). (12 Dec 1998) |
| state health planning and development agencies | Agencies established under pl93-641 to coordinate, conduct, and implement state health planning activities. Two primary responsibilities are the preparation of an annual state health plan and giving assistance to the statewide health coordinating council. (12 Dec 1998) |
| state health plans | State plans prepared by the state health planning and development agencies which are made up from plans submitted by the health systems agencies and subject to review and revision by the statewide health coordinating council. (12 Dec 1998) |
| state hospital | A hospital supported in part by taxpayers and administered by state government officials. (05 Mar 2000) |
| state implementation plan | A state plan required by the Clean Air act to bring nonattainment areas into compliance with federal ambient air quality standards. (05 Dec 1998) |
| state medicine | A system of medical care regulated, controlled and financed by the government, in which the government assumes responsibility for the health needs of the population. (12 Dec 1998) |
| steady state | A dynamic equilibrium. (13 Nov 1997) |
| steady-state rate | The velocity of an enzyme-catalyzed reaction in which, over the time course of the study, the concentration of any enzyme species is constant (i.e., for an enzyme-substrate binary complex, ES, d[ES]/dt&apprxeq;00; for this to hold true, the total enzyme concentration must be much less than the initial substrate concentration. Synonym: steady-state rate. (05 Mar 2000) |