steady state


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state

 [stāt]
condition or situation.
alpha state the state of relaxation and peaceful awakefulness associated with prominent alpha brain wave activity.
anxiety state the condition of experiencing undue anxiety, as in anxiety disorders.
excited state the condition of a nucleus, atom, or molecule produced by the addition of energy to the system as the result of absorption of photons or of inelastic collisions with other particles or systems.
ground state the condition of lowest energy of a nucleus, atom, or molecule.
persistent vegetative state a condition of profound nonresponsiveness in the wakeful state caused by brain damage at whatever level and characterized by a nonfunctioning cerebral cortex, the absence of any discernible adaptive response to the external environment, akinesia, mutism, and inability to signal; the electroencephalogram may be isoelectric or show abnormal activity. Vegetative states raise ethical questions regarding appropriate care, use of resources, and allowing a patient to die.
refractory state a condition of subnormal excitability of muscle and nerve following excitation.
resting state the physiologic condition achieved by complete bed rest for at least 1 hour.
steady state dynamic equilibrium.

stead·y state (ss, s),

1. any condition in which the formation or introduction of substances just keeps pace with their destruction or removal so that all volumes, concentrations, pressures, and flows remain constant;
2. in enzyme kinetics, conditions in which the rate of change in the concentration of any enzyme species (for example, free enzyme or the enzyme-substrate binary complex) is zero or much less than the rate of product formation.
3. a state obtained in moderate muscular exercise, when the removal of lactic acid by oxidation keeps pace with its production, the oxygen supply being adequate, and the muscles do not go into debt for oxygen;
[The abbreviations s and ss often appear in subscript.]

stead·y state

(s) (sted'ē stāt)
1. A condition obtained in moderate muscular exercise when the removal of lactic acid by oxidation keeps pace with its production, the oxygen supply being adequate, and the muscles do not rely on energy from anaerobic sources.
2. Any condition in which the formation or introduction of substances just keeps pace with their destruction or removal so that all volumes, concentrations, pressures, and flows remain constant.
3. In enzyme kinetics, conditions such that the rate of change in the concentration of any enzyme species (e.g., free enzyme or the enzyme-substrate binary complex) is zero or much less than the rate of formation of product. Often subscript s or ss.

stead·y state

(s, ss) (sted'ē stāt)
1. A condition obtained in moderate muscular exercise when the removal of lactic acid by oxidation keeps pace with its production, the oxygen supply being adequate, and the muscles do not rely on energy from anaerobic sources.
2. Any condition in which the formation or introduction of substances just keeps pace with their destruction or removal so that all volumes, concentrations, pressures, and flows remain constant.
3. In enzyme kinetics, conditions such that the rate of change in the concentration of any enzyme species (e.g., free enzyme or the enzyme-substrate binary complex) is zero or much less than the rate of formation of product.
References in periodicals archive ?
4b shows the time-frequency spectrum obtained by the STFT of a synthetic signal for a VSD-fed IM with the broken rotor bar; with two fault-related harmonics, separate 5 Hz from the main frequency of 50 Hz during startup transient and steady state. In the same way, Fig.
* Paliperidone palmitate and other long-acting injectable antipsychotics exhibit 'flip-flop' pharmacokinetics, where the absorption rate controls the time to steady state.
As most of the countries are on a transitional path and not in a steady state, researchers interested in developing countries should consider the differences (i.e., state-dependent) when analyzing the economic fluctuations of developing countries using approximation methods near a steady state.
The outputs of the two steady state fuel maps are blended over a specified duration.
For this reason, a logical initial guess for the time path of aggregate labor is the steady state in every period [L.sup.1.sub.t] = [bar.L] for all 1 [less than or equal to] t [less than or equal to] T.
* Quantify time to steady state using a new method involving back extrapolation of steady state and application of a second order polynomial function to the initial non-linear V[O.sub.2] response; and
The steady state Kalman filter gain K is computed by K = [P.sub.p][H.sup.T][[[HP.sub.p][H.sup.T] + R].sup.-1], where [P.sub.p] is the steady state prediction error covariance computed by solving the Riccati equation emanating from Kalman filter (REKF):
Denote [p.sup.**] (m) the unique steady state of problem (20) for w = 0 by Lemma 6(a).
But the most recent observation for the United States, the solid box labeled "May 2010," is about as close as the United States has been in recent times to the low nominal interest rate steady state. It is below the rate at which policy turns passive in the diagram.
In steady state, [kappa] and E must grow at the same rate for k to be constant at k*.
After all the logarithmic gains start from a zero value and change in the positive and negative regions, they reach their respective steady state values.
Liver-VLDL mechanisms define that DHA is distributed to the body through VLDL as a structural and functional component inherent to a normal steady state liver physiology and normal steady state omega-3 physiology.