Papers

In this paper we prove that a 2-divisible derivation alternator ring without nonzero nilpotent elements is right alternative.

A study of the effect of Hall Currents on MHD free convection flow of stratified viscous fluid past a vertical porous plate with heat and mass transfer taking viscous and Darcy resistance terms into account and the constant permeability of the medium numerically and neglecting induced magnetic field in comparison to applied strong magnetic field is investigated. The velocity, temperature and concentration distributions are derived and discussed numerically with the helps of graphs and tables. It is observed that velocity increases with the increase in Gr (Grashof number), K (Permeability parameter) and m (Hall currents parameter), but it decreases with the increase in M(Magnetic parameter).

Supplementary feeding plays an important role in achieving higher fish production. Animal by-products constitute the most important ingredients of aquaculture feeds. The most suitable animal product for incorporation into fish diets is fish meal. The processed soybean (as a protein source) and aquatic macrophytes have been known to have potential food value. Squilla (as a another protein source) is valuable animal protein for fishes. In deficiency of natural feed, the supplementary
feed is best option to increase economical value of fishes.