A moderated mediation model of political collective action in Hong Kong: examining the roles of social media consumption and social identity

Adopting a communication mediation approach, this study explores the role of overall social networking service (SNS) use in facilitating people’s participation in collective political action through the mediation of online and offline political discussions. The study also underscores the moderating effect on the mediation process of both social identity and geographical origin. Moderated mediation analyses reveal that the positive impact of overall SNS use on participation mediated by offline discussion is stronger for people with higher Hong Kong identity and for people from Hong Kong. This moderated mediation model specifies the socio-psychological mechanism of participation in collective political action in an immigrant society such as Hong Kong.     

西北农村“分家”特点及原因分析——以甘肃白银市X乡Y村为例

基于分家的时间、分家时到场的人员、分家意见的权威性以及对分家认识的积极化趋势分析,“分家”现象有普遍化、简单化和分家评价的中性化趋势;与此相联系,代际关系也出现了从感情型向理性化、从“老一代为中心”向平等或向“新一代为中心”方向的变化。这种普遍化、简单化和分家评价的中性化趋势与当前土地经营方式有关,与西北农村的计划生育政策有关,与农村消费取向的转移和年轻一代中“个人本位”、“小家庭本位”意识的增长有关。     

股权分置改革对价水平影响因素的再比较

用本文在改善以往研究方法及扩大样本范围的基础上,利用多元线性回归分析和主成份分析两种方法对股改中对价水平的影响因素进行比较研究。实证发现:影响对价水平的因素主要有五个,而非流通股比例大小、市场流通溢价是决定对价水平高低的两个最主要因素,反映出在股改实践中,对价水平在一定程度上权衡了非流通股股东与流通股股东之间的利益,而这有利于市场的稳定和股改的顺利完成。     

高校开放型网络实验室的构建与实施

针对目前高校计算机网络实验室中存在的管理落后、设备利用率低等弊端和不足，开发了网络实验管理系统软件，提出了构建开放型网络实验室的新思路，实现了网络实验中实验用户（学生）、设备、时间、地点及内容的有效管理，达到充分开放实验资源，减少人工管理，提高设备利用率，培养高素质网络技术人才的目的。     

TDD-CDMA 系统中基于业务统计的联合功率控制算法

An important feature of the traffic in mobile networks is burstiness. Drawbacks of conventional power control algorithms for time division duplex （TDD）-code division multiple access （CDMA） systems are analyzed. A joint power control algorithm based on service factor is presented to address the TDD-CDMA mobile services in the burst mode according to the Markov modulated Bernoulli process. The joint power control equation is derived. A function model is developed to verify the new algorithm and evaluate its performance. Simulation results show that the new power control algorithm can estimate interference strength more precisely, speed up convergence of power control, and enhance power efficiency and system capacity. It is shown that the proposed algorithm is more robust against link gain changes, and outperforms the reference algorithms.     

OFDM技术在数字音频广播中的应用

介绍了数字音频广播技术,并与传统模拟广播做比较,分析了OFDM技术基本原理及DAB系统使用OFDM技术的原因,最后给出了基于OFDM技术的DAB信号形成方案。     

刍议"行政区经济":理论阐释、实践应用与发展前景

20世纪90年代初我国区域地理学家刘君德教授发现"行政区经济"现象,并提出其概念、特征与理论框架。十多年来,越来越多的学者用"行政区经济理论"分析研究我国区域经济问题,区域经济发展的现实也不断验证该理论的有效性。"行政区经济"理论在行政区划、区域规划、区际利益协调、都市圈建设,在新兴产业旅游、金融发展等现实问题中越来越显示出其"生命力",成为深入分析与解决这些问题的必经之路,从学科发展的角度看,"行政区经济"成为区域经济学研究领域富有中国特色的分支学科。本文就此进行了理论上的回顾与阐述,最后对"行政区经济"的发展前景作了深入探讨。     

除法运算在定点DSP中的实现

分析了定点DSP中数的表示方法,讨论了两个定点数的除法运算机理,实现了定点DSP中数的除法运算。本文所讨论的问题在DSP系统设计中具有实际的参考和应用价值。     

It's not just what you know but who you know: Social capital theory and academic library outreach

The concept of social capital and its contribution to success and well-being in a variety of settings has potential for academic library outreach. Research has found that those with extensive and varied networks of social relationships can benefit in myriad ways, including academic and professional achievement. A connection has also been found between lower levels of social capital and negative effects on individuals as well as communities generally. Academic libraries are strategically positioned to enhance the social capital of their users, effecting positive differences in engagement, retention, and success after graduation.     

教育学在什么意义上不是科学

教育学的学科性质不可避免地与科学纠葛在一起,而从科学的划界、教育学与科学在某些研究基础上的不同表现,说明教育学和科学是对世界的不同的解释域,教育学没有必要也不可能完全科学化。探讨“教育学在什么意义上不是科学”,旨在表明教育学汲取的是科学精神,而不是“科学主义”,进而期待在科学精神的引领下,作为科学的教育学何以可能。