Taking the development of China's digital economy as a background, the article provides an in-depth analysis and summarises the influencing factors of labour force employment polarisation. The study employs provincial panel data from 2010 to 2020, applies fuzzy set qualitative comparative analysis methods, and constructs a fixed-effects model in order to explore the drivers, paths and their effects of employment polarisation. The results of the study show that economic, social and educational environments together have a significant impact on employment polarisation through interactions and synergistic effects; it also identifies four main paths of labour force employment polarisation, which are numerical-social-environment-driven, numerical-educational-environment-driven, numerical-economic-environment-driven, and types driven by other factors; this study also finds that compared to the summed impact of single elements, these grouping pathways have a more significant impact on employment polarisation. These findings not only provide a key perspective for understanding how the digital economy shapes employment polarisation, but also provide an empirical basis and insights for policies based on the findings.
The ultra-low calorific value coalbed methane is of great significance to the safe production of coal mines. However, due to its low methane concentration, it is generally emitted directly into the atmosphere, which not only causes environmental pollution, but also energy waste. Presently, catalytic combustion has become the most promising methods for the conversion and utilization of ultra-low calorific value coalbed methane with its high efficiency and green characteristics. Based on the field investigation of ultra-low calorific value coalbed methane emission in a typical mine of an energy company in Panzhou City, this paper uses the method of computational fluid dynamics to simulate the catalytic combustion characteristics of ultra-low calorific value coalbed methane. Result shows that the catalyst has a positive effect on the catalytic combustion of ultra-low calorific value coalbed methane, under the conditions of this paper, the lower the flow rate, the more significant the catalytic effect. Increasing the inlet temperature can improve the catalytic reaction efficiency.
This study aimed to demonstrate the relationship between explicit and implicit educational values and learning burnout among senior high school students in China. Using stratified cluster sampling, 768 students from six high schools participated in a survey on explicit educational values and learning burnout. The Single Category Implicit Association Test (SC-IAT) explored students’ implicit attitudes toward educational values. The results showed that an emphasis on economic benefit was placed first among all explicit educational values. In contrast, the external value of education was more likely to be recognized in implicit educational values. Explicit and implicit educational values were significantly negatively correlated with learning burnout. However, there were no significant correlations between the explicit and implicit educational values, suggesting that the two belong to relatively independent psychological structures.
以贵州简史为代表的地方史课程,受历史文献因素、特色教学目的等影响,开展专题式教学具有明显的探索意义.地方史课程专题式教学应秉持"两性""一度"、思想政治教育与专业课程教学相结合的原则,通过整合教学内容、精准选取重点事象作为教学专题,强化过程研讨,引导学生实现探究式学习.由于专题式的教学形式对历史演进中时空逻辑的打破和重组,在专题式教学实施中应特别注意对专题之间的逻辑关系的重视,以防对通过专题教学帮助学生构建知识体系的严密程度和深刻程度造成损害.为了确实提高教学效果,应不断完善学生学业评价体系,适时开展专题教学改革效果评估.
贵州境内漆树资源丰富,是全国中心分布区和生漆主产省份之一.清至民国时期,贵州的生漆出产量达到顶峰,其中以黔西北毕节、黔北遵义、黔东铜仁产漆最佳,所产之漆表面黑而明亮,品质极高.生漆是贵州林业经济中重要的一环,航运的发展促进了生漆的对外贸易.生漆经济效益的上涨带动了各族人民对漆树的培育,在此过程中形成的割漆、傩戏面具、漆器等漆文化,是漆树在民众生活中被广泛开发和利用的体现.加强贵州漆树资源的挖掘与利用,对贵州林业经济的发展与漆文化的记忆与传承大有裨益.
