Dr. Sattar Jabbar al-Khafaji, Dr. Alaa Mohsen Atiyeh, Dr. Hussein Badr Ghalib, Dr. Maher Mandel and Dr. Ajil suwain Yassin participated in the activities of the fourth and sixth international scientific conference held at the University of Tikrit, college  of science 
Where many scientific researches were delivered in addition to chairing some scientific sessions at the conference.