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101.
Kuo-Ting Huang Shelia R. Cotten R.V. Rikard 《Information, Communication & Society》2017,20(4):637-650
Previous research has examined the impact of computing interventions to reduce digital inequity. However, few studies focus on factors such as inequalities to material access, Internet use patterns, and affective or emotional anxiety. This paper investigates the potential role of emotional costs and computer self-efficacy in the connection between computer use at home and students’ computer use patterns. Data for this research come from pretest and posttest surveys administered to fourth- and fifth-grade African-American students. The results reveal that students’ home computer use is a significant predictor of the change in their information and entertainment usage over the course of the intervention. Students’ emotional costs partially mediate the relationship between home computer use and information-oriented usage over the intervention period. The findings suggest that providing students access to digital devices is not enough to close the digital divide. 相似文献
102.
In this study, we develop nonparametric analysis of deviance tools for generalized partially linear models based on local polynomial fitting. Assuming a canonical link, we propose expressions for both local and global analysis of deviance, which admit an additivity property that reduces to analysis of variance decompositions in the Gaussian case. Chi-square tests based on integrated likelihood functions are proposed to formally test whether the nonparametric term is significant. Simulation results are shown to illustrate the proposed chi-square tests and to compare them with an existing procedure based on penalized splines. The methodology is applied to German Bundesbank Federal Reserve data. 相似文献
103.
This paper investigates the individual and combined factors affecting the extent to which corporations respond to crisis events consistently, in a timely manner, and actively. The determinants examined include public relations autonomy, legal dominance, strategic orientation, and organizational factors. A survey was conducted of communications mangers, public affairs personnel, and public relations personnel, drawn from the top 500 companies operating in Taiwan. Results indicate that the relative effect of individual sources of influence on crisis response is greatest for situations in which public relations departments have the most autonomy, followed by those where crisis management is handled with a strategic orientation, those where the legal departments dominate, and those where organizational factors provide the main avenue of address. The results emphasize the intriguing role of public relations autonomy by demonstrating its significant impact on providing a consistent, timely, and active crisis response. The strategic orientation of situation analysis also predicts a consistent response, whereas legal dominance predicts strategic ambiguity or inconsistent communication. 相似文献
104.
105.
伊斯兰教是以道德为本的宗教。在伊斯兰教中 ,宗教信仰是基础 ,伦理道德是核心。离开信仰 ,道德无以寄托 ;离开道德 ,信仰无以落实。信仰之路也就是道德完善之路 ,信仰的最高境界也就是道德的至境。无论是伊斯兰兴教的出发点、最终目的 ,还是伊斯兰教的主旨 ,都说明伦理道德在伊斯兰教中居于核心地位。阐明伦理道德在伊斯兰教中的地位 ,对于我们正确理解伊斯兰教的真谛具有积极意义。 相似文献
106.
本文介绍了哈尔滨市方正县的自然与民族历史旅游资源的状况,并对发展当地的旅游业提出了对策和建议。 相似文献
107.
从"权利"到"仪式":南非的艾滋病行动主义 总被引:1,自引:0,他引:1
在本文中,我考察了南非HIV/AIDS行动主义的道德政治如何有助于公民身份(citizen-ship)新形式的出现,这种新形式既与基于权利(rights-based)的斗争相关,又与个体HIV/AIDS患者对病痛和污名化(stigmatization)极端体验的共享意义相关。我指出,可以确定的是,正是晚期艾滋病患者"接近死亡"的绝境体验、以及与这种疾病晚期阶段相连的巨大污名和"社会死亡",为HIV/AIDS的幸存者对"新生命"和社会行动主义的委身提供了平台。行动主义者的干预和对这些创伤经验的重述也推动了HIV/AIDS对行动主义的委身和社会底层的动员。此外,污名和社会死亡的巨大否定性也驱使行动主义者重建对HIV检测呈阳性人群新的、正面的身份认同,并促使他们思考,作为一名公民-行动主义者和一项社会运动的成员意味着什么。 相似文献
108.
80年代 ,人类学曾经出现了一个引人注目的“写文化”大论争 ,其代表就是《写文化 :民族志的诗学和政治学》与《作为文化批评的人类学 :一个人文学科的实验时代》。其核心问题就是民族志写作中的修辞、叙事的政治和策略等 ,对传统民族志提出反思和挑战。之后 ,一些人类学家鉴于“写文化”基本只是提出问题 ,却没有提供答案 ,于 1998年结集出版了《写文化之后 :当代人类学的认识论和实践》 ,试图提出一些可能的方案。反观“写文化”和“写文化之后” ,我们可以看到一些对人类学理论和实践发展具有深刻意义的方面。 相似文献
109.
A visualization method measuring the performance of biomarkers for guiding treatment decisions
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Biomarkers that predict efficacy and safety for a given drug therapy become increasingly important for treatment strategy and drug evaluation in personalized medicine. Methodology for appropriately identifying and validating such biomarkers is critically needed, although it is very challenging to develop, especially in trials of terminal diseases with survival endpoints. The marker‐by‐treatment predictiveness curve serves this need by visualizing the treatment effect on survival as a function of biomarker for each treatment. In this article, we propose the weighted predictiveness curve (WPC). Based on the nature of the data, it generates predictiveness curves by utilizing either parametric or nonparametric approaches. Especially for nonparametric predictiveness curves, by incorporating local assessment techniques, it requires minimum model assumptions and provides great flexibility to visualize the marker‐by‐treatment relationship. WPC can be used to compare biomarkers and identify the one with the highest potential impact. Equally important, by simultaneously viewing several treatment‐specific predictiveness curves across the biomarker range, WPC can also guide the biomarker‐based treatment regimens. Simulations representing various scenarios are employed to evaluate the performance of WPC. Application on a well‐known liver cirrhosis trial sheds new light on the data and leads to discovery of novel patterns of treatment biomarker interactions. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
110.
Jialiang Li Zhipeng Huang Shuangge Ma Mei‐Ling Ting Lee 《Scandinavian Journal of Statistics》2016,43(2):543-557
In survival analysis, we sometimes encounter data with multiple censored outcomes. Under certain scenarios, partial or even all covariates have ‘similar’ relative risks on the multiple outcomes in the Cox regression analysis. The similarity in covariate effects can be quantified using the proportionality of regression coefficients. Identifying the proportionality structure, or equivalently whether covariates have individual or collective effects, may have important scientific implications. In addition, it can lead to a smaller set of unknown parameters, which in turn results in more accurate estimation. In this article, we develop a novel approach for identifying the proportionality structure. Simulation shows the satisfactory performance of the proposed approach and its advantage over estimation under no assumed structure. We analyse three datasets to demonstrate the practical application of the proposed approach. 相似文献