Najeeb Ur Rehman received his M.Sc degree in 2005 and PhD in 2012 from Kohat University of Science & Technology, Kohat, Pakistan. He is an author/co-author of more than one hundred ten papers along with book, book chapters and reviews in the peer reviewed and high reputed Journals. He has been a reviewer for various international journals. Currently, he is working as Research Assistant Professor at the Natural and Medical Sciences Research Center, University of Nizwa, Oman and a member of PSE.