where AGOi is the free energy of formation of individual reactants and products a t 3333 K and ni is the stoichiometric coefficient (positive for products and negative for reactants) in the balanced equation. The values used are tabulated in Table VI. Making use of these values, we arrive at the decomposition reactions and the corresponding log P* values at 3333 K listed J . Phys. Chem. 1987, 9...

Reaction systems, a formalism describing biochemical reactions in terms of sets of reactants, inhibitors, and products, are known to have a PSPACE-complete configuration reachability problem. We show that the complexity of the problem remains unchanged even for some classes of resource-bounded reaction systems, where we disallow either inhibitors or reactants. We also prove that the complexity ...

The reaction process A + B → ∅ is modelled for ballistic reactants on an infinite line with particle velocities vA = c and vB = −c and initially segregated conditions, i.e. all A particles to the left and all B particles to the right of the origin. Previous models of ballistic annihilation have particles that always react on contact, i.e. pair-reaction probability p = 1. The evolution of such s...

The factors that govern the reaction rate of Au/Pt bimetallic nanoparticles prepared in microemulsions by a one-pot method are examined in the light of a simulation model. Kinetic analysis proves that the intermicellar exchange has a strong effect on the reaction rates of the metal precursors. Relating to Au, reaction rate is controlled by the intermicellar exchange rate whenever concentration ...

The dynamics of carburization of Mo-oxo precursors exchanged onto H-ZSM-5 strongly influence initial induction periods and steady-state rates during catalytic pyrolysis of CH4 to alkenes and arenes at 900-1000 K. The effects of co-reactants and of activating conditions were examined by on-line time-resolved mass spectrometric analysis of effluent streams using rigorous analyses to account for e...

To manipulate the size of noble metal particles on a nanometer scale are priority subjects in the field of nanotechnology. So far various approaches have been developed to synthesize noble metal nanoparticles in controlled sizes and dimensions. Among them the colloidal systems become broadly used. These systems can be made up of several very different reactants and solvents: a continuous medium...

Scale reduction of chemical reactions enables novel screening and synthesis approaches that facilitate a highly parallelized and combinatorial exploration of chemical space. Droplet-based microfluidics have evolved as a powerful platform to allow many chemical reactions within small volumes that each can be controlled and manipulated. A significant technical challenge is the ability to change t...

OBJECTIVES To assess the treatment effect of NSAIDs and TNF blockers in AS according to different domains of interest. METHODS A systematic literature research was performed in electronic databases up to October 2009. All randomized controlled trials (RCTs) reporting the efficacy (on pain and/or physical function and/or acute-phase reactants) of NSAIDs/anti-TNF vs placebo in AS were selected....