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The main aim of this investigation is to study thermo diffusion, heat source/sink, Joule and chemical effects on heat transfer in MHD mixed convection flow and mass transfer past an infinite vertical plate with ohmic heating and viscous dissipation have been studied. We consider the mixed convection flow of an incompressible and electrically conducting viscous fluid such that x* -axis is taken along the plate in upward direction and y* -axis is normal to it. A transverse constant magnetic field is applied i.e., in the direction of y*-axis. Approximate solutions have been derived for velocity, temperature, concentration profiles, skin friction, rate of heat transfer and rate of mass transfer using perturbation technique. The obtained results are discussed with the help of graphs to observe the effect of various parameters like Grashof number (Gr), the modified Grashof number (Gm), magnetic parameter (M), Permeability parameter(K), Prandtl number (Pr), Heat Sink(Q), Radiation Parameter (F), Soret parameter (S0), Eckert number (E),Schmidt number(Sc) and Chemical reaction parameter(K0) taking two cases viz. Fluid velocity, temperature and concentration profiles are comparison with Pr=0.71(Air) and Pr =7 (Water) various parameters in cooled and heated plates. Case I: when Gr > 0 (flow on cooled plate), and Case II: Gr < 0, (flow on heated plate). Both the fluid velocity and concentration rising with the increment values of Soret parameter in the fluids Air and Water and also discussed skin friction, Nusselt number and Sherwood number in the fluid’s mercury, electrolytic solution, air and water. The novelty of this study is the consideration of simultaneous occurrence of radiation, heat absorption as well as thermo- diffusion in the magnetic field. It varies in several aspects such as non-dimensional parameters, analytical solutions, and graphical solutions, the analytic solution using the Perturbation technique, and numerical solution using Matlab software for the profile.

Solanum torvumSw. is a native plant of India found abundantly in North East. It has many medicinal properties and its berries are used to treat fungal infections by the natives of the study area. The efficacy of Solanum torvum Sw. was evaluated using both in vitro antimicrobial methods and in vivo model of vaginal Candida albicans infection. Two in vitro models, disc diffusion assay and micro dilution broth assay was used and in in vivo study laboratory female rats were used. In the disc diffusion assay highest concentration i.e. 200 mg/ml Solanum torvum Sw. methanolic extract dose shows larger inhibition zone of fungal growth than the other concentrations of extract. In the microdilution broth assay, 150 mg/ml concentration of extract shows highest fungal growth inhibition. Histological study was done by loading fungal conidia on vaginas of in vivo model (rat) where 600 mg/kg extract treated group showed complete reduction of fungal growth over vaginal epithelium and vaginal cavity. In result, this plant proves its efficacy in reducing the fungal load from vaginas of infected rat as well as showing good minimum inhibitory concentration and zone of inhibition at in vitro study. From the above study, it was clear that Solanum torvum Sw. showed promising positive result against Candida albicans.

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