Biochemical reaction systems with a low to moderate number of molecules are typically modeled as discrete jump Markov processes. These systems are oftentimes simulated using the Gillespie Algorithm or the Next Reaction Method, which are exact simulation methods. In this paper we make explicit use of the fact that the initiation times of each reaction are given by the firing times of an independ...

ZnO and TiO2 nanoparticles wereimpregnated with merbromin dye and used as modified photocatalysts for degradation of phenol. Dye-modified ZnO and TiO2 showed significantly higher photocatalytic activity than neat ZnO and TiO2 under visible light illumination. Moreover, the prepared dye-modified ZnO showed superior photocatalytic efficiency in degrad...

A diffuse reflectance infrared Fourier-transform (DRIFT) study has been conducted at 373 K and 1 bar on an industrial Cr/Ti/SiO2 Phillips-type catalyst modified with, and without, triethylaluminium (TEAl) as co-catalyst. The reaction rate of the polymerization of ethylene, as monitored by the increase in the methylene stretching band of the growing polyethylene (PE), has been investigated as a ...

Gentzen (1955) introduced the natural deduction system to study the notion of proof. The full classical natural deduction system is well adapted for the human reasoning. By full we mean that all the connectives (→, ∧ and ∨) and ⊥ (for the absurdity) are considered as primitive. As usual, the negation is defined by ¬A = A → ⊥. Considering this logic from the computer science of view is interesti...

zno and tio2 nanoparticles wereimpregnated with merbromin dye and used as modified photocatalysts for degradation of phenol. dye-modified zno and tio2 showed significantly higher photocatalytic activity than neat zno and tio2 under visible light illumination. moreover, the prepared dye-modified zno showed superior photocatalytic efficiency in degradation of phenol compared to the dye-modified t...

ness, eternality, and immutability. Moreover, in so far as the qualities of the whole are true also of the parts of that whole, these characteristics are inherent i n the newly synthesized .Idea. A. man who becomes a political figure ideally would possess the qualities of knowledge, maturity, decisiveness, honesty, tact, far-sightedness, 1 . Ritter, EPP, 165. 59

The reaction of phenylglyoxal with aspartate transcarbamylase and its isolated catalytic subunit results in complete loss of enzymatic activity (Kantrowitz, E. R., and Lipscomb, W. N. (1976) J. Biol. Chem. 251, 2688-2695). If N-(phosphonacetyl)-L-aspartate is used to protect the active site, we find that phenylglyoxal causes destruction of the enzyme's susceptibility to activation by ATP and in...

Using the latest compilation of cataclysmic variable orbital periods by Ritter & Kolb we argue against Verbunt’s conclusion that the period gap is not significant for novalike variables. We also discuss the relation of the VY Scl stars to the dwarf novae.