List of Articles SPACE matrix Open Access Article Abstract Page Full-Text 1 - Medical Tourism in Tehran Developmentas a global city Leila Soltani Mostafa Behzadfar Zahra Sadat Saeideh Zarabadi Open Access Article Abstract Page Full-Text 2 - A New Optimal Method for Calculating the Null Space of a Robot using NOC Algorithm; Application on Parallel 3PRS Robot Hami Tourajizadeh oveas gholami Open Access Article Abstract Page Full-Text 3 - Formulating Strategic Model for Sustainable Tourism Development in The Desert Area by Swot, Space, Qspm Model (Case Study: Yazd Province) Sayyed Abol ghasem Mirhosseini Mohammad Reza Nowjavan