List of Articles Helios Open Access Article Abstract Page Full-Text 1 - The Myth of Demeter-Persephone ابوالقاسم اسماعیل پور مهدیه سید نورانی Open Access Article Abstract Page Full-Text 2 - study of the antimicrobial activity of alcoholic and hydro -alcoholic extract of Euphorbia helioscopia plant from Qom region Gholam Reza Najafi Open Access Article Abstract Page Full-Text 3 - Combining Heliostat Solar Energy and Reverse Osmosis: Thermoeconomic Analysis for Power Generation and Freshwater Production Seyyed Masoud Seyyedi Seyyed Mostafa Ghadami