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141.
Eric M. Hanson 《Serials Review》2017,43(3-4):278-281
ABSTRACTIn this interview from March 2017, Kay Teel, metadata librarian for serials and arts resources at the Stanford University Libraries, discusses the issues involved in providing access to serials through an institutional repository. 相似文献
142.
This study considers a fully-parametric but uncongenial multiple imputation (MI) inference to jointly analyze incomplete binary response variables observed in a correlated data settings. Multiple imputation model is specified as a fully-parametric model based on a multivariate extension of mixed-effects models. Dichotomized imputed datasets are then analyzed using joint GEE models where covariates are associated with the marginal mean of responses with response-specific regression coefficients and a Kronecker product is accommodated for cluster-specific correlation structure for a given response variable and correlation structure between multiple response variables. The validity of the proposed MI-based JGEE (MI-JGEE) approach is assessed through a Monte Carlo simulation study under different scenarios. The simulation results, which are evaluated in terms of bias, mean-squared error, and coverage rate, show that MI-JGEE has promising inferential properties even when the underlying multiple imputation is misspecified. Finally, Adolescent Alcohol Prevention Trial data are used for illustration. 相似文献
143.
Haiyong Zhang 《Journal of applied statistics》2017,44(13):2337-2353
In this study, a combined asymmetric spatial weights matrix is proposed for capturing the unequal spatial dependence of housing prices, where the advantage of this matrix was demonstrated by a non-nested hypothesis test. To explore the heterogeneous spatial impacts of urban essential characteristics on housing prices over the eastern, central, and western regions of China, after the Lagrange multiplier and likelihood ratio tests, the spatial Durbin model using the proposed weights matrix was applied to each region. The estimation results showed that the direct impacts of college and new employment were significantly negative in the eastern region, but not significant in the central and western regions. By contrast, the direct impacts of hospitals and scenic spots were significantly positive in eastern China, but not significant in central and western China. In addition, the indirect impacts of the four variables were not significant in the three regions. These results suggest that in eastern China, the government may increase the requirements for using medical resources and close tourist attractions in a single city to cool down the skyrocketing housing prices in this area. 相似文献
144.
?iray et al. proposed a restricted Liu estimator to overcome multicollinearity in the logistic regression model. They also used a Monte Carlo simulation to study the properties of the restricted Liu estimator. However, they did not present the theoretical result about the mean squared error properties of the restricted estimator compared to MLE, restricted maximum likelihood estimator (RMLE) and Liu estimator. In this article, we compare the restricted Liu estimator with MLE, RMLE and Liu estimator in the mean squared error sense and we also present a method to choose a biasing parameter. Finally, a real data example and a Monte Carlo simulation are conducted to illustrate the benefits of the restricted Liu estimator. 相似文献
145.
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147.
The ‘digital glimpse’ as imagining home 总被引:2,自引:0,他引:2
This paper proposes the concept of the ‘digital glimpse’, which develops the existing framing of imaginative travel. Here it articulates the experiences of mobile workers digitally connecting into family life and everyday rituals when physically absent with work. The recent embedding of digital communication technologies into personal relationships and family life is reconfiguring how absence is experienced and practiced by workers on the move, and through this, new digital paradigms for life on-the-move are emerging. This paper explores how such social relationships are maintained at-a-distance through digital technology – using evidence from qualitative interviews with mobile workers and their families. Digital technology now enables expressive forms of ‘virtual travel’, including video calling, picture sharing, and instant messaging. This has implications for the ways in which families can manage the social and relational pressures of being apart. Experiences of imaginative travel created through novel media can enrich the experience and give a greater sense of connection for both those who are at home and those who are away. While technology is limited in its ability to replicate a sense of co-presence, ‘digital glimpses’ are an emergent set of sociotechnical practices that can reduce the negative impact of absence on family relationships. 相似文献
148.
随着时代的进步,科技日新月异地发展以及网络的普及化,我们迎来了全新的数字化时代,人们的工作学习生活已经网络化了。阅读作为人们获取知识最基本的手段,强烈地受到了网络新媒体的冲击。在高校中,数字阅读已经成为大学生获取信息、进行交流的主要方式,并呈现出泛化的倾向,这也冲击着大学生的学习能力。文章在观察大学生数字化阅读现状的基础上,分析其利与弊,积极探讨如何更好地利用微信、微博、QQ等信息传播手段,规避弊端,提升学习效果,增强理性阅读能力,丰富自身知识结构。 相似文献
149.
Maude Gauthier 《Feminist Media Studies》2017,17(6):941-956
In the summer of 2015, the “cheating website” known as Ashley Madison came under scrutiny, as a group calling itself the Impact Team revealed users’ private information. This case study explores the controversy’s Canadian media coverage and sheds light on the main discourses about intimacy and the Internet that were made visible during this event. It interrogates how cheaters, hackers, and the company were represented. To varying degrees, the mainstream press condemns the cheaters, the hackers, and the company for their behaviour. The article also addresses the ways intimate practices are politicized and commercialized in the digital context, including a discussion of the emphasis on “privacy.” To conclude the article, I discuss the transparency and privacy issues implicated in digital intimacies and the power–knowledge (im)balance implied by hackers’ online anonymity. 相似文献
150.
This paper explores how online actions such as the practice of digital self-writing shape our offline identity. We start with an examination of the concept of hupomnemata – a practice of self-writing in which notes are kept as a ‘material record of things read, heard, or thought’ in the intent of shaping the self [Foucault (1997). Self writing. In P. Rabinow (Ed.), Ethics, subjectivity and truth. The essential works of Foucault, 1954–1984. Volume 1 (pp. 207–222). New York, NY: The New Press p. 209] – before arguing that the practice of digital content curation can be understood as a modern-day variant of the Greco-Roman hupomnemata. Although the work of the digital curator is conducted online, this paper positions contemporary curatorial practices as acts of self-exploration, self-cultivation, and self-care, which nourish offline identity and which ultimately work to shape the offline, corporeal self. 相似文献