| PUM | peanut-reactive urinary mucin |
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| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
| RAD | radial artery catheter; radiation absorbed dose; radical; radiography or radiographic; reactive airw... |
| RADS | reactive airways dysfunction syndrome; retrospective assessment of drug safety |
| REPS | reactive extensor postural synergy |
| 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) |
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| 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) |
| steady-state velocity | 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) |
| decerebrate state | A peculiar neurologic condition elicited in vertebrates as a consequence of the elimination of brain function by transecting the brainstem or interrupting function by other techniques. Clinically, brain damage can result in neurological signs resembling those of a decerebrate animal. The state consists of exaggerated postures, grossly abnormal reflexes, convulsions, and extreme muscular rigidity and spasticity. (12 Dec 1998) |
| decorticate state | A unilateral or bilateral postural change, consisting of the upper extremities flexed and adducted and the lower extremities in rigid extension; due to structural lesions of the thalamus, internal capsule, or cerebral white matter. Synonym: decorticate state. (05 Mar 2000) |
| dreamy state | The saemiconscious state associated with an epileptic attack. Synonym: absent state. (05 Mar 2000) |
| imperfect state | In fungi, the state or stage at which only asexual spores such as conidia are formed; most such species are classified as Deuteromycetes (Fungi Imperfecti). (05 Mar 2000) |
| transition state | The activated state of a molecule that has partly undergone a chemicalreaction. (09 Oct 1997) |
| transition state intermediate | In a chemical reaction, an unstable and high-energy configuration assumed by reactants on the way to making products. Enzymes are thought to bindand stabilise the transition state, thus lowering the energy of activation needed to drive the reaction to completion. (09 Oct 1997) |