the reaction kinetics of the isomerization 3,4-dichlorobutene-1 to 1,4-dichlorobutene-2 was investigated by using gas-liquid chromatography method in the presence of fe2o3/mgo as solid catalyst in the temperature range 25-55°c. fe2o3/mgo has been prepared by the support saturation method, tested in the isomerization of 3, 4-dichlorobutene-1 into 1, 4-dichlorobutene-2. this catalyst shows a high...

We have previously examined spatio-temporal dynamics of clot formation in vitro [Ataullakhanov et al., 2002]. Here we describe a mathematical model developed to analyze the obtained experimental results. This model is based on a modern view of the molecular pathways of blood coagulation. Most of the results, which led to this view, were obtained in the in vitro stirred systems and provided the ...

the kinetics and mechanism of the reaction of 5-nitro-1h-benzo[d] imidazole to produce 6-nitro-1h-benzo[d] imidazole was studied by employing hybrid meta-density functional theory. mpwblk/6-31+g** level calculations were carried out to obtain energies and optimize the geometries of all stationary points along the pes, and determine the harmonic vibrational frequencies. two transition states (ts...

A great variety of instruments, methods and models to study hemorheological parameters under conditions close to physiological are currently used. An overview of the factors, determining hemorheological properties and models, describing the relationship between shear stresses, shear rate, viscosity and hematocrit is presented. Time dependent properties – blood thixotropy and viscoelasticity and...

The effect of melphalan on immunoglobulin G (IgG) production by a human lymphoblastoid cell line (BF) was studied. The amount of secreted IgG and the percentage of cells containing cytoplasmic IgG were measured by immunoassay and cytofluorometry, respectively. Dose-response studied indicated that melphalan concentrations of 2 X 10(-8) M had no effect, while concentrations of 8 X 10(-7) M were t...

The influence of Mo particle size on the catalytic activity and product selectivity of alkalized MoS2 nanocatalysts has been investigated. Nanocatalysts are prepared using a microemulsion technique with water-to-surfactant ratios of 1-12. Three different techniques, including XRD, TEM, and hydrogen chemisorption were used to determine the molybdenum average particle size and their activity and ...