This research suggests that the evolution of entrepreneurial spirit played a significant role in the process of economic development and the evolution of inequality within and across societies. The study argues that entrepreneurial spirit evolved non-monotonically in the course of human history. In early stages of development, the rise in income generated an evolutionary advantage to entreprene...

In this paper, we have tried to analyze and asses the process of formation and spatial – structural evolution of Iranian-Islamic cities through Tehran case study as well as how to organize and effecting different factors specially modernism on urban elements. Also we have discussed about formation and emergence of Tehran and the effect of different pre modernism and postmodernism socio-economic...

Research shows that expert-crafted worked examples can have a positive effect on student performance. To investigate the potential for data-driven worked examples to achieve similar results, we generated worked examples for the Deep Thought logic tutor, and conducted an experiment to assess their impact on performance. Students who received data-driven worked examples were much more likely to c...