Electronic Journal of University of Aden for Basic and Applied Sciences (EJUA-BA) is a peer-reviewed periodical published by the University of Aden. It aims to provide a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the basic sciences. Mainly welcome are contributions dealing with Mathematics, Chemistry, Biology, Physics and related subjects such as Medicinal, Engineering, and Agriculture. The EJUA-BA welcomes the submission of the manuscript that meets the general criteria of significance and academic excellence. All articles published in EJUA-BA are peer-reviewed.