Department of Environmental and Plant Biology, Department of Biological Sciences, Ohio University Zanesville,
Zanesville, OH, USA
Department of Mathematics, Statistics and Physics, Qatar University, Doha, Qatar
Copyright © 2015 Mohannad G. Al-Saghir, Abdel-Salam G. Abdel-Salam et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.