Associate Professor of Structural Engineering and qualified full professor according to the Italian qualification system, Italy.

Professor Vilnius Gediminas Technical University, Department of Architectural Fundamentals, Theory and Art & Literary Theory at Vilnius University, Department of English Philogy, Lithuania.

Department of Construction Production, Faculty of Architecture and Civil Engineering, Kuban State Agrarian University, Russia.

Department of Building Energetics, Vilnius Gediminas Technical University (VILNIUS TECH).

Professor at the School of Computer Science at the Faculty of Engineering and Information Technology, University of Technology Sydney.

Professor in the Department of Chemistry at the Alexandru Ioan Cuza University of Iasi, Romania.

Professor at Chemistry Department, College of Science, Taibah University and Chemistry Department, Faculty of Science, Sohag University. Egypt.

Professor of Hong Kong University of Science and Technology.Nam Shan, Sai Kung, NT, Hong Kong, China

Associate Professor in the Department of Chemistry at Alexandru Ioan Cuza University of Iasi, Romania.