数字货币时代的商业模式讨论--基于双案例的比较研究

本文运用对比案例分析法,选取Steemit论坛和知乎论坛作为分析对象,探究了使用数字货币与否对同一行业组织的商业模式及其创新有什么影响。本文以商业模式画布为蓝本,通过对比数字货币背景下商业模式在价值主张、价值创造、价值传递、价值网络和价值实现五个方面的差异,探究数字货币时代下商业模式的创新影响,以及商业模式不同价值元素间新的构成秩序。本研究分析了选取案例商业模式中的不同对应元素,并给出了以下三个针对数字货币和商业模式的新命题:第一,数字货币在价值创造过程中联结利益主体;第二,数字货币起到了模糊价值网络边界的作用,从而促进构成新的治理模式;第三,使用数字货币可以在价值实现过程中完成利润重新分配。最后,文章认为数字货币情景下商业模式中不同价值元素的交互关系,呈现出以客户关系为核心的共同价值创造和共同价值实现的新秩序。     

经典的原义及其扩展性——以儒家经典诠释为例

中国经典诠释学的构建是面向21世纪的中西哲学走向对话与融通的具体路径之一,如何理解现代文化中的经典现象与古典意义上的“经”及其学术,是进入中西差异、古今交错之复杂的经典观念丛林的第一道门。文章以儒家经典诠释的相关线索为例证,探讨了经典的流传性及其作为活的思想源泉的本质特征,对经典的意义如何实现扩展以及典范转移的问题、经典所具有的恒常性与时代转换问题等,均做了一定的分析,并对传统经学与现代诠释学的结合进行了展望。     

Distribution of the two‐sample t‐test statistic following blinded sample size re‐estimation

We consider the blinded sample size re‐estimation based on the simple one‐sample variance estimator at an interim analysis. We characterize the exact distribution of the standard two‐sample t‐test statistic at the final analysis. We describe a simulation algorithm for the evaluation of the probability of rejecting the null hypothesis at given treatment effect. We compare the blinded sample size re‐estimation method with two unblinded methods with respect to the empirical type I error, the empirical power, and the empirical distribution of the standard deviation estimator and final sample size. We characterize the type I error inflation across the range of standardized non‐inferiority margin for non‐inferiority trials, and derive the adjusted significance level to ensure type I error control for given sample size of the internal pilot study. We show that the adjusted significance level increases as the sample size of the internal pilot study increases. Copyright © 2016 John Wiley & Sons, Ltd.     

Model averaging inconcentration–QT analyses

This article describes how a frequentist model averaging approach can be used for concentration–QT analyses in the context of thorough QTc studies. Based on simulations, we have concluded that starting from three candidate model families (linear, exponential, and Emax) the model averaging approach leads to treatment effect estimates that are quite robust with respect to the control of the type I error in nearly all simulated scenarios; in particular, with the model averaging approach, the type I error appears less sensitive to model misspecification than the widely used linear model. We noticed also few differences in terms of performance between the model averaging approach and the more classical model selection approach, but we believe that, despite both can be recommended in practice, the model averaging approach can be more appealing because of some deficiencies of model selection approach pointed out in the literature. We think that a model averaging or model selection approach should be systematically considered for conducting concentration–QT analyses. Copyright © 2016 John Wiley & Sons, Ltd.     

中西方丧葬习俗差异及文化透视

死亡是人生的最后归宿,丧葬是对一个生命结束的最后处置仪式和对生命体死亡超越的一种寄托。中西方传统丧葬在举办主体及程序、墓地选址及建设、丧葬基调、丧葬用具等习俗方面存在着巨大差异,从中可以折射出中外文化的不同。受中国城市化建设以及西方文化在华传播的影响,中国现代丧葬仪式开始呈现出程序化、中西文化交融的特征。在文化多元化的今天,摒弃封建迷信的同时,中国应该继承发扬优秀的传统文化,发出文化最强音。     

Exponentiality Test Based on the Progressive Type II Censoring via Cumulative Entropy

In this article, we use cumulative residual Kullback-Leibler information (CRKL) and cumulative Kullback-Leibler information (CKL) to construct two goodness-of-fit test statistics for testing exponentiality with progressively Type-II censored data. The power of the proposed tests are compared with the power of goodness-of-fit test for exponentiality introduced by Balakrishnan et al. (2007 Balakrishnan, N., Habibi Rad, A., Arghami, N.R. (2007). Testing exponentiality based on Kullback-Leibler information with progressively type-II censored data. IEEE Transactions on Reliability 56(2):301–307.[Crossref], [Web of Science ®] , [Google Scholar]). We show that when the hazard function of the alternative is monotone decreasing, the test based on CRKL has higher power and when the hazard function of the alternative is non-monotone, the test based on CKL has higher power. But, when it is monotone increasing the power difference between test based on CKL and their proposed test is not so remarkable. The use of the proposed tests is shown in an illustrative example.     

新媒体对藏族民众文化生活的影响调查研究

研究以青海省城镇、农业地区和牧区的270名藏族民众为被试,通过对藏族地区新媒体普及情况、使用新媒体的能力以及藏族民众喜欢的媒体资源类别等方面进行调查,分析了中国移动和中国电信网络、智能手机、数字广播电视、计算机及其网络给藏族民众的生活带来的影响,并提出通过加大适合于藏族民众的媒体资源建设力度,转变思想,提高服务意识,建设一个方便访问和传播的藏语信息技术平台,发挥新媒体在基层党员干部培训中的作用,以村为单位实行数字广播电视的统一管理,尽早尽快做好光纤的村村通工作,进一步降低手机资费标准,减轻藏族民众的通信负担等改进策略。     

论“日本视野”中的中国现实主义文学思潮接受

探讨中国现实主义文学思潮的接受来源,"日本视野"是不可或缺的视角.近在咫尺的东邻日本,较早接受西方现实主义文学思潮,曾在不同时期给中国现实主义文学思潮的生成与发展产生影响.但中国作家从日本引入的现实主义理论,有不同的内涵与特质,因而也会产生不同的接受效应.     

“文学性”的偏至与文学内、外部研究的危机——以延安文学“政治决定论”的形成为例

中国现代文学的"外部"研究和"内部"研究作为长期存在的两种研究向度在近年来却遭遇危机.以延安文学"政治决定论"的形成为例延安文学"政治决定论"的形成是中国现代文学研究中的"政治反映论"和"纯文学"积弊的结果,其出现的合理性在于其对"政治反映论"的批判性,但其理论基础和研究格局的偏狭,以及对延安文学作品超越价值的压抑,使其成为延安文学研究中新的意识形态.延安文学"政治决定论"形成过程反映出中国现代文学"外部"研究和"内部"研究出现隔离的本质对"文学性"理解的偏至.中国现代文学研究需要从"价值论"向"发生论"的转变中获得自身的生命力.