BACKGROUND: Bisphenol A (BPA) is one of the most prevalent chemicals in daily-use materials; therefore, human exposure to BPA is ubiquitous. The estrogenicity of BPA is generally mediated by nuclear estrogen receptors (ERs). However, low concentrations of BPA stimulate seminoma cell proliferation by an uncertain mechanism that does not involve...
On the basis of literatures and the data from stratified sampling of 160 fishing vessels in the East Sea Region of China, the process of institutional transition of operational systems of fishing vessels in the region, which started from 1979, their present situation and performance were analysed in this paper....