This study aims to explore the multiple mediating effects of political skills and entrepreneurial opportunity recognition between perceived entrepreneurship education and innovation. Structural equation is used to analyze data collected from 269 Chinese student entrepreneurs. Results showed that (1) there is a positive relationship between perceptions of entrepreneurship education and perceptions of innovation, (2) political skills and entrepreneurial opportunity recognition individually play a mediating role between perceived entrepreneurship education and innovation, and (3) political skills and entrepreneurial opportunity recognition play a chain mediating effect between perceived entrepreneurship education and innovation.

This study examined the relationship between the Protestant Work Ethic (PWE) and Confucian Dynamism in a sample of 1,757 respondents from several provinces in mainland China. Mirels and Garrett's (J Consult Clin Psychol 36:40-44, 1971) PWE Scale and Robertson's (Manag Int Rev 40:253-268, 2000) Confucian Dynamism Scale were used to measure the work ethics. The 16 items of the PWE Scale and eight items of the Confucian Dynamism Scale were initially subjected to a principal components analysis. Factor analysis produced four factors of the PWE, which were labeled as follows: hard work, internal motive, admiration of work itself, and negative attitude to leisure; and three factors of the Confucian Dynamism, which were labeled: long-term orientation, short-term orientation, and guanxi orientation. The results of a multiple regression analysis indicated that all the dimensions of PWE were positively related to Confucian Dynamism, but negatively to guanxi orientation. The results also indicated that three PWE dimensions (''hard work,'' ''internal motive,'' and ''admiration of work itself'') were positively and significantly related to long-term orientation, but two of them were related negatively and significantly to the short-term orientation of Confucian Dynamism. In addition, the results showed that the dimension-admiration of work itself-of PWE was significantly and negatively associated with the guanxi orientation, but significantly and positively to the short-term orientation.

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The persistent luminescence performance and electronic structure of β-Sialon:Eu2+ are first reported. A novel strategy to construct the host referred binding energy schemes is proposed.

The need for high power density cathodes for Li-ion batteries can be fulfilled by application of a high charging voltage above 4.5 V. As lithium cobalt oxide (LCO) remains a dominant commercial cathode material, tremendous efforts are invested to increase its charging potential toward 4.6 V. Yet, the longterm performance of high voltage LCO cathodes still remains poor. Here, an integrated approach combining the application of an aluminum fluoride coating and the use of electrolyte solutions comprising 1:1:8 mixtures of difluoroethylene:fluoroethylene carbonate:dimethyl carbonate and 1 m LiPF 6 is reported. This results in superior behavior of LCO cathodes charged at 4.6 V with high initial capacity of 223 mAh g −1 , excellent long-term performance, and 78% capacity retention after 500 cycles. Impressive stability is also found at 450 °C with an initial capacity of 220 mAh g −1 and around 84% capacity retention after 100 cycles. Systematic post-mortem analysis of LCO cathodes and Li anodes after prolonged cycling reveals two main degradation routes related to changes at the surface of the cathodes and formation of passivation layers on the anodes. This study demonstrates the importance of appropriate selection of electrolyte solutions and development of effective coatings for improved performance of high voltage LCO-based Li batteries.