郭象美学的本体论

作为魏晋玄学发展成熟阶段的代表人物,郭象吸取了诸家的思想资源,开辟出了一条关于人性的精神本源的思路.由于论证的艰难性,郭象不得不借助牢笼中的语言来摆脱语言的牢笼,通过对造物生成论、自生论的不断否定,向我们展开了人性的生存之根"独化"."独化"在最高旨趣上达到人的天性,人在精神上走向无限.     

高职院校参与新农村建设的机遇与策略

我国新农村建设的实施极大地激发了农民自我管理、自我教育、自我服务的主人翁意识,但是,在实践运用中也日渐暴露出农民自治能力不足与农村建设的主力军严重流失等问题。由此,我国高职院校获得了以培训返乡农民工为契机、积极主动地参与新农村建设的时代机遇。高职院校参与新农村建设的基本策略在于：办学理念的拓展,专门机构的组建,双向互动式的介入,新型农民的培养,以及新农村建设的全面参与。     

The unequal impact of Covid-19 on the lives and rights of the children of modern slavery survivors,children in exploitation and children at risk of entering exploitation

This article discusses the unequal impact of Covid-19 on the lives of the children of survivors of modern slavery, child victims of exploitation and children at risk of exploitation in the UK. It draws on research that has analysed the risks and impacts of Covid-19 on victims and survivors of modern slavery. It explores how pandemic responses may have hindered these children's rights to education, food, safety, development and participation and representation in legal processes. It suggests that the pandemic should be used as an impetus to address inequalities that existed pre-Covid-19 and those that have been exacerbated by it.     

Public Access to Government Information in the Digital Age: Findings from China

The openness of government information is an unavoidable issue in the digital age. The Chinese government makes great effort to publish administrative information and seek advice on good governance from the general public, but is nonetheless unable to meet citizens’ legitimate demands for the right to know and participate. This study analyzes this contradiction from four angles: the driving force, the type of information, the access platform, and the annual examination and supervision system for government information disclosure. The findings showed that (a) netizens’ heavy pressure rather than Chinese authorities’ strong leadership pushes forward the disclosure of government information; (b) administrative information concerning the public agenda rather than the policy agenda best meets the needs of the general public; (c) commercial Weibo websites are a more satisfactory channel than official government websites for practical requests; and (d) as a unique institutional arrangement for examination and supervision, the annual report on government information disclosure should be standardized.     

灰色关联决策方法研究

以灰色决策分析理论为基础,探讨了经典灰色关联决策方法的优势和不足。提出了基于理想方案的最大关联度方法、基于临界方案的最小关联度方法,以及同时考虑理想方案和临界方案的综合关联度方法及其相关概念。建立了灰色区间关联系数公式和灰色区间相对关联系数公式。运用分析技巧,构建了上述3种关联度决策算法。指出了灰色区间关联系数公式和最大关联度方法分别是经典灰色关联系数公式和灰色关联决策方法的推广,而最小关联度方法和综合关联度方法是经典灰色关联决策方法的拓展。文中实例说明了所提出的灰色关联决策方法的合理性及其算法的有效性。     

Nonparametric depth-based multivariate outlier identifiers, and masking robustness properties

In extending univariate outlier detection methods to higher dimension, various issues arise: limited visualization methods, inadequacy of marginal methods, lack of a natural order, limited parametric modeling, and, when using Mahalanobis distance, restriction to ellipsoidal contours. To address and overcome such limitations, we introduce nonparametric multivariate outlier identifiers based on multivariate depth functions, which can generate contours following the shape of the data set. Also, we study masking robustness, that is, robustness against misidentification of outliers as nonoutliers. In particular, we define a masking breakdown point (MBP), adapting to our setting certain ideas of Davies and Gather [1993. The identification of multiple outliers (with discussion). Journal of the American Statistical Association 88, 782–801] and Becker and Gather [1999. The masking breakdown point of multivariate outlier identification rules. Journal of the American Statistical Association 94, 947–955] based on the Mahalanobis distance outlyingness. We then compare four affine invariant outlier detection procedures, based on Mahalanobis distance, halfspace or Tukey depth, projection depth, and “Mahalanobis spatial” depth. For the goal of threshold type outlier detection, it is found that the Mahalanobis distance and projection procedures are distinctly superior in performance, each with very high MBP, while the halfspace approach is quite inferior. When a moderate MBP suffices, the Mahalanobis spatial procedure is competitive in view of its contours not constrained to be elliptical and its computational burden relatively mild. A small sampling experiment yields findings completely in accordance with the theoretical comparisons. While these four depth procedures are relatively comparable for the purpose of robust affine equivariant location estimation, the halfspace depth is not competitive with the others for the quite different goal of robust setting of an outlyingness threshold.     

On the mean L1-error in the heteroscedastic deconvolution problem with compactly supported noises

We study the heteroscedastic deconvolution problem when random noises have compactly supported densities. In this context, the Fourier transforms of the densities can vanish on the real line. We propose a truncated type of estimator for target density and derive the convergence rate of the mean L¹-error uniformly over a class of target densities. A lower bound for the mean L¹-error is also established. Some simulations will be given to illustrate the performance of the proposed estimator.     

风险投资机构的网络位置与退出期限:来自中国风险投资业的经验证据

以中国风险资本市场为研究背景,研究风险投资机构的网络位置对退出期限的影响。运用清科数据库2000年1月1日至2009年12月31日的数据,使用Cox比例风险模型,本文研究发现:风险投资机构的网络中心性越高,退出期限越短。这表明风险投资机构的网络位置对退出期限有显著的影响,提升自身的网络位置有助于投资机构缩短退出期限。     

八至十五世纪的中国与也门

古代中国与也门的关系在一定程度上反映了中国与印度洋地区经贸、政治、文化交往的水平.在8至15世纪,中国、也门的相互了解逐渐加深,经济领域出现直接的商贸往来.13-15世纪两国互派使节,在文化领域也有较多交流.15世纪中期,主要由于中国海洋政策的变化,两国的直接交往中断.