论中国20世纪90年代散文及其发展趋势

我国 90年代出现了一股“散文热” ,其主要标志和特点为 :散文队伍发展壮大 ,散文流派异彩纷呈 ;散文更贴近生活 ,更关注人生 ,更强调表现主体意识 ;散文理论探讨、争鸣十分活跃。但也有不足之处 :散文创作存在“泡沫”现象、“缺钙”现象、散文理论存在薄弱现象。 2 1世纪散文发展趋势 :“散文热”将会持续 ,“网络散文”将迅猛发展 ,散文与高科技的结合势在必行。     

投资条约中的“履行要求禁止规则”

履行要求是东道国为引导和管理外资而采取的一些政府措施.然而,近年来的一些双边投资条约和多边投资条约、国际文件开始对东道国的此项权力提出质疑,对东道国外资管辖权形成了过大的冲击.履行要求的减少乃至废除,必须遵循尊重现实渐进推行的原则,任何过激的国际管制规则都不会收到良好的效果.     

上市公司总经理更换、高管团队重组与企业绩效改进

本文针对以往总经理更换理论研究存在的关键问题,特别是对高管团队重组现象的忽视,构建了新的理论假设,并利用中国上市公司数据进行了检验.研究发现,总经理被迫离职时企业绩效呈现改进之面貌,但常规离职时无此效应;国有控股阻碍了企业绩效改进而内部董事则反之,且在总经理被迫离职情况下,前者负效应减弱而后者正效应增强;总经理是否为竞争者继任对企业绩效改进无显著影响,而选择外部继任对其有显著负面效应;总经理更换后的高管团队重组总体上不利于企业绩效改进,但受到继任类型的调节作用,在外部继任情形下消极影响尤为明显,而对竞争者继任则具有积极作用.     

高效液相色谱法测定葡萄酒中白藜芦醇的含量

利用高效液相色谱法测定样液中的白藜芦醇含量,采用乙腈水为流动相,检测波长306nm,分析测定了葡萄酒中白藜芦醇的含量。结果表明,葡萄酒中检测到白藜芦醇检出限为0.05mg/L,加标回收率达98.5%。该方法简便、快速、准确度高、前处理简单、能够满足葡萄酒中白藜芦醇的分析要求。     

On asymptotic distribution of the test statistic for the mean of the non-isotropic principal component

In this paper, the authors derived the large sample distribution of the t statistic based upon the observations on the first principal component instead of the original variables. It is shown that the above statistic is distributed asymptotically as Student's t distribution.     

经济全球化背景下的我国医药知识产权保护

本文就经济全球化对我国医药知识产权带来的影响进行了比较详细的分析 ,并提出了相应的对策。     

我国制造业产能过剩问题研究

准确衡量和判断真实的产能过剩程度及其成因是科学化解产能过剩的前提.本文利用固定效应随机前沿模型测度了1980-2014年制造业分行业的产能利用率,并采用动态面板模型和系统GMM方法考察产能过剩的成因.2008年金融危机以前,我国制造业产能过剩表现为一般性、局部性和周期性;近几年的产能过剩呈现出复杂性、全局性甚至长期性特征,并且有从传统产业向新兴产业蔓延的趋势.三个层次的因素共同推动制造业产能过剩,而研发创新缓解供求关系结构性矛盾的机制尚未奏效,导致制造业产能过剩治理出现“久治不愈”现象.矫正体制性扭曲、刺激企业供给创新和激发企业有效投资,是缓解供求关系结构性矛盾、化解产能过剩的根本出路.     

Model Averaging for Prediction With Fragmentary Data

ABSTRACT

One main challenge for statistical prediction with data from multiple sources is that not all the associated covariate data are available for many sampled subjects. Consequently, we need new statistical methodology to handle this type of “fragmentary data” that has become more and more popular in recent years. In this article, we propose a novel method based on the frequentist model averaging that fits some candidate models using all available covariate data. The weights in model averaging are selected by delete-one cross-validation based on the data from complete cases. The optimality of the selected weights is rigorously proved under some conditions. The finite sample performance of the proposed method is confirmed by simulation studies. An example for personal income prediction based on real data from a leading e-community of wealth management in China is also presented for illustration.     

What it means to be a ‘model minority’: voices of ethnic Koreans in Northeast China

Ethnic Koreans in China have been widely recognized as a ‘model minority’ primarily for academic success. Using the data collected as part of a larger ethnographic research on Korean elementary school students, this paper examines how 27 Korean families construct meaning out of the model minority stereotype in the context of their lived experience in Northeast China. Research results indicate that Koreans constructed the multi-faceted nature of ‘model minority’ as a matter of cultural superiority and dual economic marginalization in the Chinese and South Korean mainstream societies, and valued education as a practical means to achieve economic upward mobility into the Chinese mainstream. This paper argues that the model minority stereotype with the cultural explanations for Korean success may reinforce the cultural deficiency argument about the academic failure of ‘backward’ minorities, silence the disadvantages suffered by Koreans in China's reform period and lead to no active intervention to remedy them.     

詹姆斯心理学思想研究的现状与展望

詹姆斯作为美国心理学之父,在美国心理学史上是一位划时代的人物.国外对詹姆斯心理学思想的研究丰富而全面,而国内对詹姆斯心理学思想的研究与其在心理学史上的地位极不相称.研究詹姆斯心理学思想有助于科学和全面地把握詹姆斯心理学的思想主题,有助于深刻了解心理学的发展历程和趋势.詹姆斯心理学思想的研究要把握其精神实质--"整合与分化".