List of Articles EMS Model Open Access Article Abstract Page Full-Text 1 - Study on Status of Higher Education System in Our Country Using Dynamics Systems Modeling M.A. Afshar Kazemi H. Asgarian Open Access Article Abstract Page Full-Text 2 - Examining the Effect of Corporate Governance Indicators on Credit Ratings with Regard to the EMS model (Case study: Tehran Stock Exchange) Hoosein Vazifehdust1 Maysam Ahmadvand M. Javad Sadehvand