List of Articles Lead Open Access Article Abstract Page Full-Text 1 - Synthesis and Characterization of PbTiO3 Nanopowders by Citric Acid Gel Method K. Zare M. S. Sadjadi M. Enhessari S. Khanahmadzadeh Open Access Article Abstract Page Full-Text 2 - Evaluation of two different extraction techniques on determination of 〖Pb〗^(+2) contents of wastes of dye manufacturing industries Maiid Mohammadhosseini Karim Zare Mohammad Saber Tehrani