List of Articles وایبر Open Access Article Abstract Page Full-Text 1 - Investigation of Social Networks (Facebook, Twitter, Line, Viber) Impact on Social Identity of Users Shirzad Bakhshi Taliabi Shahnaz Hashemi Mohammad Soltanifar Open Access Article Abstract Page Full-Text 2 - A Review of the Jahn-Teller Effects (Jahn -Teller, Renner-Teller, and Pseudo Jahn -Teller): The main origin of instability and symmetry breaking of molecular systems Ghazaleh Kouchakzadeh