Kinetics of oxidation of [N-isopropylidene - hydrazine-s-methyldithiocarboxylate] cobalt [II] complex by N-bromosuccinimide and N-bromophthalimide in non polar solvent

The kinetics of oxidation of [N-isopropylidene - hydrazine-s-methyldithio-carboxylate] cobalt [II] complex by N-bromosuccinimide [NBS] and N-bromophthalimide [NBP] in benzene solvent were studied spectrophotometrically at lambda = 300 - 310 nm and at 281-297 K for a range of complex and oxidant concentrations. The reaction exhibited a first order dependence on both reactants. The detection of the initial cobalt [III] products which are slowly converted to the final cobalt [III] supports an inner-sphere mechanism for the oxidation of the complex by both oxidants. Under identical experimental conditions, the extent of oxidation using the oxidizing agents is in the order: NBS > NBP. GC-MS analysis for the reaction mixture after completion of the oxidation reaction indicates the presence of both succinimide and phthalimide as side products of the oxidation process

Evaluation of laser therapy in the treatment of low back pain

Law back pain [LBP] is a widespread and costly condition that tends to recure. So treatment must focus on both the amelioration of acute symptoms and prevention over the long term. Laser therapy has been suggested as an effective modality in the treatment of acute and chronic painful syndromes. The aim of this work was to study the possible role which can be a played by laser in the management of LBP. This work was conducted on 40 patients suffering from LBP of different etiology and divided in two groups. One group treated with laser therapy and static exercises and placebo laser therapy [machine not working]. The first group showed significant improvement of pain. Tenderness and ROM. So it was concluded that laser therapy offers a new physical modality in the treatment of LBP