List of Articles hydrogen peroxide Open Access Article Abstract Page Full-Text 1 - Effect of cold stress on chlorophyll content, chlorophyll fluorescence and activity of oxidative enzymes of barley cultivars (Hordeum vulgare L.) Ali Bashirzadeh Khanlar Dayyan Abdullayev Zaman Mahmudov Open Access Article Abstract Page Full-Text 2 - Optimization of the Decomposition Process of 4-Chlorophenol from Industrial Wastewater Using Activated Carbon/Magnetite Nanocatalyst and Ultrasonic Application Zahra Zahra Hajyani Ali Montazeri Zahra Pournuroz Nodeh Mohammad Taher Shafiei Seyf Abadi Ali Aghababai Beni