梅娘笔下的东北沦陷区社会生活

从梅娘小说聚焦描写东北沦陷区的广大民众到上层民族资产阶级的社会生活及心理世界入手,分析梅娘小说创作致力于开掘民族奴性心理和悲剧命运形成因由的特质,指出梅娘小说承载着深厚而丰富的现实主义内涵,具有很高的文学价值。     

Life satisfaction in China and consumption and income inequalities

This research uses nationally representative data to study how economic resources and inequalities are associated with life satisfaction of Chinese residents. We construct economic resource and inequality measures from expenditure rather than from income, after confirming that expenditure inequality is a better measure in the Chinese context. We find that economic inequalities in general are negatively associated with life satisfaction, and that this association is larger for inequalities in the lower half of the distribution than those in the upper half of the distribution. We further explore the mechanisms under which inequality can be associated with life satisfaction, and find that aspiration is potentially one important channel.     

On extreme order statistics from heterogeneous beta distributions with applications

This paper treats the problem of stochastic comparisons for the extreme order statistics arising from heterogeneous beta distributions. Some sufficient conditions involved in majorization-type partial orders are provided for comparing the extreme order statistics in the sense of various magnitude orderings including the likelihood ratio order, the reversed hazard rate order, the usual stochastic order, and the usual multivariate stochastic order. The results established here strengthen and extend those including Kochar and Xu (2007 Kochar, S.C., Xu, M. (2007). Stochastic comparisons of parallel systems when components have proportional hazard rates. Probab. Eng. Inf. Sci. 21:597–609.[Crossref], [Web of Science ®] , [Google Scholar]), Mao and Hu (2010 Mao, T., Hu, T. (2010). Equivalent characterizations on orderings of order statistics and sample ranges. Probab. Eng. Inf. Sci. 24:245–262.[Crossref], [Web of Science ®] , [Google Scholar]), Balakrishnan et al. (2014 Balakrishnan, N., Barmalzan, G., Haidari, A. (2014). On usual multivariate stochastic ordering of order statistics from heterogeneous beta variables. J. Multivariate Anal. 127:147–150.[Crossref], [Web of Science ®] , [Google Scholar]), and Torrado (2015 Torrado, N. (2015). On magnitude orderings between smallest order statistics from heterogeneous beta distributions. J. Math. Anal. Appl. 426:824–838.[Crossref], [Web of Science ®] , [Google Scholar]). A real application in system assembly and some numerical examples are also presented to illustrate the theoretical results.     

图片信息丰裕度对消费者在线风险决策的影响

以图片标记信息丰裕度对消费者在线风险决策的影响为研究重点,引入详尽可能性模型(ELM),从购买行为发生之前的顾客关注度和购买之后的顾客满意度两个纬度,探索了消费者在线风险决策的影响因素。结果表明:信誉标记图片信息丰裕度中的评价方式种类和商家信用度、服务标记图片信息丰裕度中的保障服务以及商品促销标记,无论对消费者关注度还是消费者满意度均有显著的正向影响;支付服务图片信息丰裕度对消费者关注度影响不显著,但与消费者满意度有显著的正相关关系。另外,店铺动态评分、物流服务标记以及商品描述标记的图片信息丰裕度与消费者关注度及满意度相关性均不显著。研究结果为C2C交易平台以及网上卖家图片标记和信息展示提供了一定的理论指导。     

Control‐based imputation for sensitivity analyses in informative censoring for recurrent event data

In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study.     

"新工人艺术团"文化实践的力量与困境

在消费主义和文化工业的潮流中,以孙恒为代表的几位青年工人在北京自发组织了"新工人艺术团".该组织除为工人创作、 演出外,还创建了打工文化艺术博物馆、 新工人剧场、 打工子弟学校等为工人服务的文化机构.这些文化实践有助于唤起新工人的情感共鸣、 身份认同,体现了对现实和资本一定程度的批判,为工人文化的发展提供了有益探索.然而,作为异质声音的"新工人艺术团"在多重权力话语的夹缝中生存艰难,且要屈从商业挑战,时常面临被收编的危险,致使工人文化陷入困境.     

Comparison of dichotomized and distributional approaches in rare event clinical trial design: a fixed Bayesian design

This research was motivated by our goal to design an efficient clinical trial to compare two doses of docosahexaenoic acid supplementation for reducing the rate of earliest preterm births (ePTB) and/or preterm births (PTB). Dichotomizing continuous gestational age (GA) data using a classic binomial distribution will result in a loss of information and reduced power. A distributional approach is an improved strategy to retain statistical power from the continuous distribution. However, appropriate distributions that fit the data properly, particularly in the tails, must be chosen, especially when the data are skewed. A recent study proposed a skew-normal method. We propose a three-component normal mixture model and introduce separate treatment effects at different components of GA. We evaluate operating characteristics of mixture model, beta-binomial model, and skew-normal model through simulation. We also apply these three methods to data from two completed clinical trials from the USA and Australia. Finite mixture models are shown to have favorable properties in PTB analysis but minimal benefit for ePTB analysis. Normal models on log-transformed data have the largest bias. Therefore we recommend finite mixture model for PTB study. Either finite mixture model or beta-binomial model is acceptable for ePTB study.     

马克思的机器思想及其对认识互联网的启示

马克思的《资本论》及其手稿中包含了丰富的机器思想,内容涉及机器的性质,机器对生产方式、资产阶级政权、家庭和社会的影响以及机器的发展前途.在产生和影响上,马克思所处时代的机器与今天的互联网具有高度的相似性,这决定了《资本论》中的机器思想对深刻认识互联网以及利用互联网发展生产力、化解网络政治经济问题、引导家庭和社会适应网络社会等方面具有重要的启示.     

教育与娱情:中外戏剧价值论永恒的内部角力——以曹禺剧作批评史为中心

“戏剧何为”是曹禺剧作的批评者共同关注的焦点问题之一.耐人寻味的是,在不同历史阶段,研究者们于曹剧的思想价值与艺术价值之间总是有意无意地突出一方而非等而视之——要么肯定一方而否定另一方,要么将一方视为另一方的附属产品.这一现象首先与曹禺在个人创作倾向和时代、社会要求的冲突中所生发的价值犹疑有关——作者在“教育”和“娱情”两大功能之间的摇摆直接导致了其剧作价值倾向的模糊.更进一步说,由于戏剧自身的艺术特性及其不同于其他文类的受众特征,“教育”和“娱情”之间的角力始终潜隐于古今中外戏剧价值论内部,曹剧中两大功能之间的“暗斗”恰是其具体表现之一.     

我国个人信息保护的立法实践与路径走向

计算机和互联网的产生与发展构成了信息时代的技术挑战,衍生了我国个人信息保护的本土需求.我国在“是否通过立法保护个人信息”的问题上秉持肯定立场,但仍处于分散式立法保护阶段,且现行立法实践存在个人信息保护缺少完整请求权基础等困境.《民法总则》第一百一十一条的确立对个人信息保护具有开创性意义,但仍存在值予修缮的固有局限.面向未来,我国个人信息保护立法的应然路径走向为:分阶段实现个人信息权及其子权利的法定化与精细化;从内外两个层面实现个人信息保护法制的体系化;以统一式路径实现个人信息保护行政主管机关专责化.