唯一远达点和极大化序列的收敛性

本文主要讨论唯一远达点和极大化序列的收敛性，即给出如下定理：设X具（H）性质且为严格凸的Banach空间，K是X中弱M紧集，Fk(x)在X上fr■chet可微，则是X中的稠G_δ集。     

我国学位授予权权能法理研究

学位授予的特点决定学位授予权是一种行政权力与学术权力共同作用的行政权。论文答辩委员会是相对独立的第三方,只对论文质量负责,学位评定委员会与论文答辩委员会是专业评价的委托关系。学位评定委员会把专属于自己的学位评定权力让渡给了学位评定分委员会,两者地位相等,责权一致,不存在隶属或者领导与被领导关系。“经全体成员过半数通过”是以所有委员为计算依据,而不是实到委员的投票数为依据。学位评定过程中不应投弃权票,或者通过技术设计避免弃权票难题,在计票时弃权票不应计算了总票数之内。司法介入学位评定有其必要性,但司法审查仅限除纯学术评价内容之外的其他事项,还应允许学位申请人通过多种途径进行救济。     

WEF全球竞争力评价体系下中美国家制度竞争力比较研究——基于WEF数据的实证分析

中国国家竞争力的提升与35年来改革开放即制度建设密不可分。改革极大地改变了我国宏观制度环境,也是促进我国制度竞争力提升进而提高我国国家竞争力水平的重要因素。文章以国家竞争力理论为基础,基于WEF建立的全球竞争力评价体系和相关数据,在对比分析中美制度竞争力发展现状和历史回顾的基础上,运用灰色关联度方法进一步对影响中美两国制度竞争力各因素的强弱、大小和次序进行实证分析,发现中国不仅在私人制度竞争力方面与美国相比差距明显,而且影响两国制度竞争力各因素的关联度也存在明显差异。     

从符号化的教师到“好教师”:困境与超越*

社会对“好教师”的呼声反衬出教师在现实境遇中的尴尬。教师职业的符号化使教师成为去身体化、去情境化和去经验化的存在,其真实生活被遮蔽。社会对他们索之过多,责之过重,职业活动边界模糊不清,他们的正常需求难以得到恰当满足和应有尊重,职业吸引力受到抑制。符号化不可能产生“好教师”。好教师只能产生于生活世界,其应对的是一个市场在资源配置中起决定性作用及注重自我决策的社会,关照的是个体对未来生活的美好预期。我们需要承认教师的具身性存在,构建友善的文化氛围和制度环境。     

Estimation of the additive hazards model with interval-censored data and missing covariates

The additive hazards model is one of the most commonly used regression models in the analysis of failure time data and many methods have been developed for its inference in various situations. However, no established estimation procedure exists when there are covariates with missing values and the observed responses are interval-censored; both types of complications arise in various settings including demographic, epidemiological, financial, medical and sociological studies. To address this deficiency, we propose several inverse probability weight-based and reweighting-based estimation procedures for the situation where covariate values are missing at random. The resulting estimators of regression model parameters are shown to be consistent and asymptotically normal. The numerical results that we report from a simulation study suggest that the proposed methods work well in practical situations. An application to a childhood cancer survival study is provided. The Canadian Journal of Statistics 48: 499–517; 2020 © 2020 Statistical Society of Canada     

Decolonising the university in 2020

ABSTRACT

We came together as editors of Decolonising the University through a commitment to understanding the university and our place within it; to examine what else might be possible for us, collectively, in the domain of higher education. Although we do not always agree about the university– or, perhaps more specifically, about the possibilities it contains for intervening effectively in the world– we nonetheless coalesced around an idea of ‘decolonising the university’ as an important strategic mode of engagement. Here, we set out the positions that we come from in relation to the broader debates about the university and its political possibilities and offer responses also to the reviews. These are not our final words on the matter, but words shaped by the political possibilities that present themselves at the outset of 2020 and which, we hope, will contribute to the increasingly necessary dialogues on this topic.     

计算知识论视域下的科学发现逻辑研究

在科学发现逻辑受制于描述性的传统研究路径，经历衰落和缓慢复苏的大背景之下，计算知识论为科学发现逻辑提供了一个全新的规范性研究框架。该框架不仅为科学发现逻辑做了系统性辩护，而且围绕发现问题的可解性做了许多规范性讨论。虽然其有关具体规范性的研究距离现实的科学发现仍然较远，但这一路径对未来发现逻辑研究走向的启发意义毋庸置疑。     

论合唱钢琴伴奏与指挥及合唱队的合作关系

作为一名合唱钢琴伴奏者,演奏技法如何服从合唱的需要,与合唱有机地紧密结合在一起,是其在伴奏过程中必须注意的.伴奏者要能够与合唱这种多声部的演唱形式默契结合,演奏应遵循合唱本身的特点,与指挥、合唱队三方合作,同时通过自身的视觉和听觉对伴奏进行控制调节,以达到完整地体现作曲家、指挥及伴奏者自身的审美意图的目的.     

A regularized variable selection procedure in additive hazards model with stratified case-cohort design

Case-cohort designs are commonly used in large epidemiological studies to reduce the cost associated with covariate measurement. In many such studies the number of covariates is very large. An efficient variable selection method is needed for case-cohort studies where the covariates are only observed in a subset of the sample. Current literature on this topic has been focused on the proportional hazards model. However, in many studies the additive hazards model is preferred over the proportional hazards model either because the proportional hazards assumption is violated or the additive hazards model provides more relevent information to the research question. Motivated by one such study, the Atherosclerosis Risk in Communities (ARIC) study, we investigate the properties of a regularized variable selection procedure in stratified case-cohort design under an additive hazards model with a diverging number of parameters. We establish the consistency and asymptotic normality of the penalized estimator and prove its oracle property. Simulation studies are conducted to assess the finite sample performance of the proposed method with a modified cross-validation tuning parameter selection methods. We apply the variable selection procedure to the ARIC study to demonstrate its practical use.     

标准语与方言间语码转换的性别差异研究

语言使用的性别差异是社会语言学研究的热点,探究标准语与方言间语码转换的性别差异及其根源具有重要的现实意义。在回顾前人研究基础上,通过问卷调查和访谈,探究了两性对标准语及其方言的使用度以及对公共场合使用标准语和方言的态度,结果发现“女性对标准语的使用度明显高于男性,对公共场合使用方言的赞成度则低于男性,女性对‘讲不讲标准语不会影响别人对我的看法’观点的同意度低于男性”,同时探讨了造成这些差异的社会、家庭、心理等方面的原因。