民族记忆传承视域下藏族档案文献遗产资源体系构建研究——以西藏自治区档案馆为例

藏族档案文献资源体系的构建,对改善馆藏藏族档案文献资源结构,做好资源建设工作有推进作用。论文分析藏族档案文献资源建设存在问题,阐释资源体系构建理论依据、实践基础和现实意义,提出资源体系构建框架与实践应用建议。这一资源体系的构建,有利于开展藏族档案文献资源体系化建设,完整构建、保护与传承这一珍贵藏族记忆。     

A Data Envelopment Analysis-Based Methodology Adopting Assurance Region Approach for Measuring Corporate Social Performance

Many research papers calculate corporate social performance (CSP) with the net score method, i.e., by subtracting the number of concerns from the number of strengths. Although widely adopted, this method implies, perhaps mistakenly, that each indicator is of equal importance and that however serious the social misconduct a firm may have engaged in, it can be completely offset by some positive social action. The method also implies that a given firm that has done both a lot of harm and a lot of good will have CSP similar to that of another firm that has done little harm and little good. In this study, however, we question the appropriateness of the net score method in terms of its ability to truly reflect CSP and truly identify the real effects of CSP on various characteristics. We therefore propose a data envelopment analysis-based methodology that adopts the assurance region approach for evaluating CSP, through which various CSP indicators are converted into a single composite measure of CSP. Our findings show that our proposed methodology consistently performs better than the net score method in evaluating CSP.

     

场域转换与文化反哺:青年群体与变迁社会的信息互动

以布迪厄场域理论来考察不同社会形态下青年与社会的信息互动实践,发现青年与社会的信息互动在具有“位置-权力”关系的场域中展开,“位置-权力”关系通过信息资本的占有而建构。社会形态随技术变革更迭,青年与社会信息互动的场域逻辑与运行机制发生相应转变。从农耕社会到工业社会再到信息社会,青年与社会的互动场域变得多样,并且发生着从家庭向学校再向网络空间的偏向性转换,场域运行的推动力量也从时间权威向结构权威再向认同权威转换。可以说,青年与社会信息互动场域的转换,正是人类在不同社会形态下对“用时间消灭空间”的信息传播时空观的生产实践与社会表征。     

An elastic-net penalized expectile regression with applications

To perform variable selection in expectile regression, we introduce the elastic-net penalty into expectile regression and propose an elastic-net penalized expectile regression (ER-EN) model. We then adopt the semismooth Newton coordinate descent (SNCD) algorithm to solve the proposed ER-EN model in high-dimensional settings. The advantages of ER-EN model are illustrated via extensive Monte Carlo simulations. The numerical results show that the ER-EN model outperforms the elastic-net penalized least squares regression (LSR-EN), the elastic-net penalized Huber regression (HR-EN), the elastic-net penalized quantile regression (QR-EN) and conventional expectile regression (ER) in terms of variable selection and predictive ability, especially for asymmetric distributions. We also apply the ER-EN model to two real-world applications: relative location of CT slices on the axial axis and metabolism of tacrolimus (Tac) drug. Empirical results also demonstrate the superiority of the ER-EN model.     

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.     

浅谈卖淫问题及其解决对策

卖淫在我国一直是一个严重的社会问题,且有愈演愈烈之势.一个女人为了一种完全非内心的、纯粹外在的回报而献出自己最隐秘、最个人性的东西时,货币等价物就把人类尊严降到了最低点.由于社会需求的存在,卖淫在可预见的将来是无法消除的.要减轻卖淫带来的道德败坏、卖淫女犯罪、吸毒等危害,我们要从法治与德治两途径去考虑.     

绿色贸易壁垒对广西农产品出口的影响及其法律对策

随着关税等传统壁垒在国际贸易中作用的减弱,绿色贸易壁垒逐渐成为国际贸易中的主要保护措施。广西是一个经济欠发达地区,其农产品出口近年来遭受了绿色贸易壁垒的打击。广西应采取完善国际性的环境保护公约内容,完善国内的环境保护立法,积极推行ISO 14000国际系列标准,完善外商投资规则,加速绿色食品的生产,积极起诉明显带有歧视性的绿色贸易壁垒等法律对策。     

当代中国社会思潮的发展轨迹

当代中国社会思潮的发展是以阶段递进的方式进行的,其演变轨迹具体表现为由20世纪80年代的激进主义过渡到90年代的保守主义,两者分别是由不同客观形势的推动而形成的,各自都有具体的形成原因、推动力量和外在表现。     

应用现代教育技术提高教育教学质量

现代教育技术朝着智能化、多媒化、网络化的方向发展,具有教学信息资源和信息渠道多元化、课堂教学开放化、教学手段智能化以及教学过程情景化等特点。而课堂教学现代化是提高教学质量的有效途径,通过合理应用现代教育技术手段,使教学效果达到最优化。     

不完全信息下的寻租博弈分析

从寻租过程中客观存在的信息的不完全和寻租人不同的风险态度出发,通过建立不完全信息下的寻租竞争博弈模型分析,得出当寻租方存在信息不对称、寻租人数无限增加时,寻租人会退出寻租竞争,导致寻租市场消失的结论.