Green’s study [Int. J. Forecasting (forthcoming)] on the accuracy of forecasting methods for conflicts does well against traditional scientific criteria. Moreover, it is useful, as it examines actual problems by comparing forecasting methods as they would be used in practice. Some biases exist in the design of the study and they favor game theory. As a result, the accuracy gain of game theory o...

objective: many studies have shown that the level of postoperative distress and anxiety in children is associated with the amount of anxiety during the pre operative period. in this study, we compared the effect of pre-operational attending in a playroom and using play activities on the level of anxiety increment after surgery in an intervention and a control group of iranian children. method: ...

nowadays, social networks play a key role in the study of sociology, socialpsychology and sociology. social network facebook has turned into a virtualsystem covering more than 900 million people around the world. in islamicrevolution of iran as a world revolution, universal definition, it can use as anew possibility. this paper will identify the capabilities and challenges withusing facebook. p...