Sea water is a salt solution of about 3.5 per cent concentration whose various constituents are maintained in almost constant proportions. A notable exception to these constant relations occurs in the case of carbon dioxide, which is found to vary greatly in concentration. These facts of variation arc undoubtedly related to the conditions of organic activity, and the concentration of carbonic a...

BACKGROUND The plasma effect-site equilibrium rate constant (k(e0)) of propofol has been reported in various pharmacodynamic studies; however, it is not desirable to apply k(e0) for the link with pharmacokinetic models that were separately investigated. Thus, we titrated k(e0) for the pharmacokinetic model, which is known as the multiple covariates adjusted model of propofol. METHODS Ninety f...

Sea water is a salt solution of about 3.5 per cent concentration whose various constituents are maintained in almost constant proportions. A notable exception to these constant relations occurs in the case of carbon dioxide, which is found to vary greatly in concentration. These facts of variation arc undoubtedly related to the conditions of organic activity, and the concentration of carbonic a...

Intracellular potassium activity in guinea pig left atria was measured using potassium ion-selective microelectrodes and conventional microelectrodes. The effects of extracellular potassium concentration and acetylcholine on both intracellular potassium activity and the relationship between the resting membrane potential and the potassium equilibrium potential were investigated. Intracellular p...

Simultaneous indoor radon, radon-thoron progeny and high-resolution in situ gamma spectrometry measurements, with portable high-purity Ge detector were performed in 26 dwellings of Thessaloniki, the second largest town of Greece, during March 2003-January 2005. The radon gas was measured with an AlphaGUARD ionisation chamber (in each of the 26 dwellings) every 10 min, for a time period between ...

Polysaccharide phosphorylase isolated from Idaho potatoes was the subject of a steady state kinetic study. The initial velocity of the reaction between a-D-glucopyranose l-phosphate (glucose-l-P) and amylopectin, in the absence of orthophosphate, was determined as a function of substrate concentration. A similar study was carried out for the reverse reaction. The result is characteristic of a s...

In this work, we focus on the mathematical analysis of the model of chemostat with enzymatic degradation of a substrate (organic matter) that can partly be under a solid form Simeonov and Stoyanov (2003). The study of this 3-step model is derived from a smaller order sub-model since some variables can be decoupled from the others. We study the existence and the stability of equilibrium points o...

The chemical equilibrium distribution of point defects modeled as non-overlapping, spherical inclusions with purely positive dilatational eigenstrain in an isotropically elastic solid is derived. The compressive self-stress inside existing inclusions must be excluded from the stress dependence of the equilibrium concentration of the point defects, because it does no work when a new inclusion is...

Biosorption of Acid Yellow (AY17) a monoazo acid dye currently used in textile and dyeing industries was investigated using Spent Brewery Grains (SBG) a brewing industry waste in a batch system with respect to initial pH, temperature, initial dye concentration, biosorbent dosage, and contact time. The biomass exhibited the highest dye uptake capacity at 303 K, initial pH value of 2, the initial...

In this paper, we perform a complete analysis of the kinetic behavior of the general modifier mechanism of Botts and Morales in both equilibrium steady states and non-equilibrium steady states (NESS). Enlightened by the non-equilibrium theory of Markov chains, we introduce the net flux into discussion and acquire an expression of the rate of product formation in NESS, which has clear biophysica...