background: in iran, architectures are often unaware of the risk of radon inhalation and how to reduce radon levels. furthermore, radon considerations are not implemented in construction methods, construction materials and building utilization by regulatory authorities. materials and methods: in this study after reviewing the meteorological changes of ramsar over the past 50 years (1955-2005), ...

With the rapid development in China's IT outsourcing industry, the number of employees in software outsourcing enterprises increases rapidly. IT expatriates not only bring huge economic benefits to the software company, but also reduce the customers’ development and operation costs, improving IT performance. However, since these expatriates who are away from the parent company, are working in c...