Despite heavy research, the efficiencies of blue perovskite light-emitting diodes (LEDs) lag behind those of their green and red cousins. One of the most critical problems is the lack of technology to obtain both high blue emission and spectral stability of perovskite in thin films. Herein, we...

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,...

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 proposes an estimator of the covariance matrix of currencies using unsynchronized and noisy high frequency observations. The estimator allows us to estimate the covariance matrix over a shorter time interval with more accuracy. The estimator is not f-consistent when there are...

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...

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...