Earlier studies have suggested that exposure to phthalates (PAEs) may induce spermatozoa apoptosis. Sperm protamine is one likely mechanism underlying the association between PAE exposure and spermatozoa apoptosis. This study aimed to explore whether sperm protamine mediates association of PAE...

Vietnam has been following China?s path closely and very successfully for the last two decades, since the adoption of ?Doi moi? in 1986. Over those last two decades, economic growth rates in both countries have been the highest worldwide (with GDP growing by 8 per cent and 10 per cent per year,...

This paper is Selected for presentation at the Southern Agricultural Economics Association Annual Meeting, Atlanta, Georgia, January 31-February 3, 2009. The research is partially funded by ERS/USDA China Project and Social Science Fund of Jiangsu Province in China. The authors are grateful for...

This article uses tick-by-tick foreign exchange rates to explore the feature of high frequency financial data. In this article, the author proposes a model that explains the negative autocorrelation of high frequency financial time series. The empirical results indicate that the heavy tail of...

Aiming to understand real-world hierarchical networks whose degree distributions are neither power law nor exponential, we construct a hybrid clique network that includes both homogeneous and inhomogeneous parts, and introduce an inhomogeneity parameter to tune the ratio between the homogeneous...