List of Articles عواطف مثبت Open Access Article Abstract Page Full-Text 1 - The Mediating Role of Positive and Negative Affect in the Relationship between Meaning in Life and Mental Health Leila Mohammadi Mohammad Ali Besharat Mohammad Reza Rezazade Masoud Gholamali Lavasani Open Access Article Abstract Page Full-Text 2 - Conceptualization of Students’ Academic Passion in Mathematic based on Qualitative Study of Foundation Data Mahsa Saleh Najafi Elahe Hejazi Parvin Kadivar Masoud Gholamali Lavasani Open Access Article Abstract Page Full-Text 3 - Structure Modelling of Interpersonal Relations and Academic Engagement and Academic Performance among High School Students, Mediating Role of Positive Affect Hesam Soleimani Yasamin Saki Nazanin Naghdi