List of Articles Open Access Article Abstract Page Full-Text 1 - On J-C-Numerical Range And Its Generalizations Ali Reza Janfada یم لشکری Open Access Article Abstract Page Full-Text 2 - An algorithm based on Mean-CVaR for selecting efficient portfolio with cardinality constraints فرهاد حسین زاده لطفی Fatemeh Fattahi سعید محرابیان علی هادی Open Access Article Abstract Page Full-Text 3 - A new non-radial DEA-R model to measure the effects of undesirable outputs on the efficiency of production units جواد گرامی Open Access Article Abstract Page Full-Text 4 - Gradual improvement of an inefficient DMU of CCR model, using a finite sequence of the intermediate targets hassan Rostamzadeh Ali Reza Fakharzadeh Jahromi Marzieh Oroji Open Access Article Abstract Page Full-Text 5 - Efficiency score in the presence of flexible factors, integer and fuzzy integer data Zahra Moazenzadeh Saber Saati reza farzipoor saen Reza Kazemi Matin sevan sohraiee Open Access Article Abstract Page Full-Text 6 - The Distribution of Randomly Weighted Averages on Random Independent Vectors with Dirichlet Distributions Hazhir Homei هاوری حداد M. H. Behzadi Rahman Farnoosh