List of Articles Open Access Article Abstract Page Full-Text 1 - Technological and science Clusters, as like a General Theorem Sohrab Del angizan Open Access Article Abstract Page Full-Text 2 - Technology Assessment, Pros and Cons Open Access Article Abstract Page Full-Text 3 - Definition, Decomposition and Measurement of Opportunity Recognition Skill Seyed jalal Mosavi bazargani Open Access Article Abstract Page Full-Text 4 - Ambiguity in ambiguity tolerance of entrepreneurs Jalil Samad Aghaei