Results 241 to 250 of about 1,974,822 (284)
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Semiparametric analysis of non-steady-state pharmacodynamic data
Journal of Pharmacokinetics and Biopharmaceutics, 1991We present an approach to the analysis of pharmacodynamic (PD) data arising from non-steady-state experiments, meant to be used when only PD data, not pharmacokinetic (PK) data, are available. The approach allows estimation of the steady-state relationship between drug input and effect. The analysis is based on a model describing the time dependence of
D, Verotta, L B, Sheiner
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Non-Steady State Population Kinetics of Intravenous Phenytoin
Therapeutic Drug Monitoring, 1998This observational study explored the effects of demographics, sickness, and polypharmacy on the non-steady state population pharmacokinetics of intravenous phenytoin. One hundred fifteen patients were studied. Models were developed using the NONMEM program with hybrid first-order conditional estimation.
B, Frame, S L, Beal
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Significance of Non-steady-state Serum Digoxin Concentrations
American Journal of Clinical Pathology, 1975In order better to define the optimal time for sample collection, the authors examined the serial concentrations of digoxin in serum and urine of six hospitalized patients during the first 8 hours after administration of their maintenance doses of digoxin.
F M, Walsh, J, Sode
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The Journal of Chemical Physics, 1962
The non-steady-state nucleation of water vapor is examined by an exact mathematical approach which solves on a computer the 100 or so simultaneous differential equations which describe nucleation. This approach avoids the numerous mathematical approximations of Kantrowitz, Probstein, and Collins.
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The non-steady-state nucleation of water vapor is examined by an exact mathematical approach which solves on a computer the 100 or so simultaneous differential equations which describe nucleation. This approach avoids the numerous mathematical approximations of Kantrowitz, Probstein, and Collins.
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Nonequilibrium and Non-Steady-State Evolution of a Shock State
Physical Review Letters, 2003Using numerical simulations, we study the evolution of silicon in the passage of a constant-pressure shock wave launched from an adjacent pusher. We examine also its optical characteristics of reflectivity and emission. Our finding points to the study of shocked interfaces as a novel means to explore nonequilibrium, non-steady-state behaviors of shock ...
A, Ng, T, Ao
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Non-Steady State Processes at Microelectrodes
1991A general approach to the analysis of time dependent responses for electrochemical experiments at electrodes of finite size and with arbitrary shapes and surface conditions is described. Neumann’s integral theorem of two parameters is used to illustrate an application of the approach to such problems in circular cylindrical coordinates.
Stanley Pons +2 more
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Mathematical aspects of non-steady-state diagenesis
Geochimica et Cosmochimica Acta, 1976Abstract Berner (1971) has solved the differential equation governing the concentration in interstitial water of substances produced or consumed during steady-state diagenesis. We have shown that closed solutions exist for non-steady-state diagenesis as well, and that these solutions are best obtained by means of Green's functions.
A.C. Lasaga, H.D. Holland
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Non-steady-state optical-parametric-oscillator model
OSA Annual Meeting, 1993Optical parametric oscillation (OPO) is becoming a valuable and versatile method for generating tunable radiation from the visible to mid-infrared.
S. K. Wong, K. L. Schepler
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Stochastic theory of non-steady state nucleation
Journal of Crystal Growth, 1974Abstract For phase transitions of the first kind, the general equation for the nucleation rate as a function of time will be derived under the assumption of constant supersaturation. The detailed analysis of possible dependences will be made for one-, two-, and three-barrier processes of nucleation.
L.N. Aleksandrov, B.I. Kedyarov
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Non-steady-state solar wind-magnetosphere interaction
Space Science Reviews, 1991Most of the theories proposed to explain the interaction between the solar wind and the geomagnetic field are stationary descriptions based on ideal MHD. In this review an alternative, nonstationary description is discussed. According to this description, most of the plasma-field irregularities, i.e., plasmoids, detected in the solar wind can penetrate
J. Lemaire, M. Roth
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