List of Articles Supply & Open Access Article Abstract Page Full-Text 1 - Interest rate of the securities with fixed-income in Iran Taghi Torabi Peyman Tataei Samaneh Tarighi Abdollah Daryabor Open Access Article Abstract Page Full-Text 2 - Optimization ELM neural network in prediction problem: case study forecasting demand steel in Iran Jalal Rezaeenour Mansoureh Yari eili Esmaiel roozbahani Mohammad hossein Roozbahani