青海历史文化与钱币收藏

从钱币收藏中可以窥测到历史文化的发展规迹,而钱币收藏与人文地理密切相关,因此青海今后的钱币收藏要突出地域文化特点。     

休闲是人的全面发展的实践形态——试论马克思休闲思想及其当代意义

马克思的休闲思想主要体现在他的自由时间理论中,自由时间是由于社会生产力的发展,必要劳动时间缩短而游离出来的。自．由时间为人提供自由存在和自由发展的社会空间,自由时间是人的自由全面发展的必要条件。休闲是人在自由时间中,通过一系列自由选择的活动探索生命的意义,是人“成为人”的过程,是人的自由全面发展的实践形态。     

文化建设的四重路向与中华民族凝聚力

文化建设既要坚持民族立场,又要有全球视野;既要加强主流文化的建构,又要注重大众文明的建设;既要传承传统社会的道德精神,又要注重法理社会契约精神的培育;既要提高公民的基本素养,还要培养公民的现代意识。中华民族凝聚力在文化建设四重路向的影响下,具有合理的开放性、不同的凝聚层次以及适应时代发展的价值取向与新型主体。     

Empirical Likelihood for the Additive Hazards Model with Current Status Data

We investigate empirical likelihood for the additive hazards model with current status data. An empirical log-likelihood ratio for a vector or subvector of regression parameters is defined and its limiting distribution is shown to be a standard chi-squared distribution. The proposed inference procedure enables us to make empirical likelihood-based inference for the regression parameters. Finite sample performance of the proposed method is assessed in simulation studies to compare with that of a normal approximation method, it shows that the empirical likelihood method provides more accurate inference than the normal approximation method. A real data example is used for illustration.     

Outlier detection and robust variable selection via the penalized weighted LAD-LASSO method

This paper studies the outlier detection and robust variable selection problem in the linear regression model. The penalized weighted least absolute deviation (PWLAD) regression estimation method and the adaptive least absolute shrinkage and selection operator (LASSO) are combined to simultaneously achieve outlier detection, and robust variable selection. An iterative algorithm is proposed to solve the proposed optimization problem. Monte Carlo studies are evaluated the finite-sample performance of the proposed methods. The results indicate that the finite sample performance of the proposed methods performs better than that of the existing methods when there are leverage points or outliers in the response variable or explanatory variables. Finally, we apply the proposed methodology to analyze two real datasets.     

China’s Economic Development and Development Economics Innovation

China has experienced rapid economic growth since its reform and opening up 40 years ago. The prime mover and key driver of these amazing achievements originated in China’s transformation from a planned economy to a socialist market economy, and from a closed economy to an open economy. The optimal allocation of the various factors of production and the interaction of economic growth and structural upgrading also played a significant part. China’s economic growth over the 40 years has applied, and proven effective, the general principles of development economics, and more importantly, based on the realities of China, it has contributed to theoretical innovation and institutional innovation, leading China along the road of socialism with Chinese characteristics. Entering the new era, China is committed to building a modern economic system and promoting high-quality development under the guidance of the new development concepts of innovation, coordination, green development, opening up and sharing.     

从群体遗传的DNA线索看东乡族族源问题

DNA分析技术的发展为进行民族识别和分析民族起源、迁徙、流动、融合提供了新手段。本文在国内外首次应用D13S317基因座第 11号等位基因频率指标 ,计算了东乡族群体遗传动态数据。结果发现 ,东乡族和回族遗传距离很近 ,且东乡族中具有白种人血缘混杂。结合其他有关资料 ,我们认为东乡族的起源与元代蒙古军带来的中亚工匠、签军有关 ,亦与当地蒙古族、回族、藏族人群的融合有关。本文的研究结果可以为民族研究提供群体遗传方面的线索     

Motherhood Penalties and Living Arrangements in China

Past research on the “motherhood wage penalty” has been based on data from nuclear families, leaving open the possibility that the motherhood wage penalty may be lower or even absent in multigenerational families. In this article, the wage gap between mothers and nonmothers is examined in nuclear and multigenerational families in the context of contemporary China, which has a long tradition of patriarchal families. Using 1993 to 2006 China Health and Nutrition Survey data, the magnitude and variation of motherhood penalty is explored with fixed effects models among 1,058 women. The results show that each additional child lowers hourly wages by about 12%. In addition, the motherhood penalty is largest for women living with their husbands' parents, smaller for women not living with parents, and nil for women living with their own parents.     

社会资本视角下的大学生职业发展教育

社会资本在大学生就业过程中起着举足轻重的作用,但大学生社会资本的开发与利用不足。职业发展教育有助于提升大学生的就业力和职业发展能力,而目前关于职业发展教育的理论研究与实践操作中并没有重视大学社会资本的开发与利用。因此,有必要在大学生职业发展教育中,引入社会资本理论,开展社会资本视角下的职业发展教育．创新大学生职业发展教育。