Professor of Chemistry, Chemistry Department, Konstanz University, Germany

Faculty of Computer and Information Technology, Sana'a University, Yemen

Faculty of Agriculture, Sana'a University, Yemen

Professor of Biology, Biology Department, Faculty of Science, Sana'a University, Yemen

Faculty of Petroleum and Natural Resources, Sana'a University, Yemen

Faculty of Engineering, Sana'a University, Yemen

Faculty of Engineering, Sana'a University, Yemen

Professor of Theoretical Physics, Physics Department, Ain Shams University, Egypt

Professor of Microbiology, Microbiology Department, Management and Science University, Malaysia

Professor of Computer Science, Faculty of Computer and Information Technology, Sana'a University, Yemen

Professor of Physics, Physics Department, Faculty of Science, Najran University, Saudi Arabia

Professor of Earth Science (Economic Geology, Geochemistry, Precambrian Geology), Sultan Qaboos University, Oman

Professor of Inorganic Chemistry, Sana'a University, Yemen

Professor of Chemistry, Department of Chemistry, Faculty of Science, Sana'a University, Yemen

Professor of Theoretical Physics (Plasma Physics), University of Basra, Iraq

Professor of Biochemistry, School of Natural and Applied Sciences, Mount Carmel College Autonomous, Bengaluru - 560001, India

Professor of Zoology, NMKRV College for Women, Bengaluru-560011, India

University of the West Indies, St Augustine Campus, Trinidad and Tobago

Professor of Solid State Physics and Polymer Physics, Basrah University, Basrah, Iraq