People’s responses to risks of electromagnetic fields and trust in government policy: the role of perceived risk,benefits and control

Trust in government policy affects the way people perceive and handle risks. In our study, we investigated the relationships between trust in government policy regarding electromagnetic fields (EMF), perceived risk and perceived benefits of public and personal EMF sources, perceived control over exposure to EMF and responses to the possible EMF health risk (e.g. protest against placement of mobile phone base stations or power lines, or taking own measures against EMF exposure). Previous research indicated that perceived risk and benefits mediate the relationship between trust and people’s risk responses. Additionally, we suggest that perceived control over EMF exposure affects the relation between trust in government policy and perceived risk, and, consequently, the risk responses. We performed a survey among the Dutch population (n?=?1009), which contained questions about risk responses to EMF, perceived risk and benefits of several EMF sources, trust in government policy and perceived control over EMF exposure. Comparing public EMF sources, i.e. power lines and mobile phone base stations, to personal EMF sources, i.e. microwave ovens and cordless and mobile phones, we tested our hypotheses. Variations in risk responses to both public and personal EMF sources were mainly explained by risk perception. In addition, perceived risk partially mediated the relationship between trust in government policy and risk responses. For public sources, perceived control over exposure weakened the negative relationship between trust and perceived risk. We conclude that, especially in people with low perceived control, a lack of trust in government policy may enhance perceptions of health risks, thereby increasing their inclination for risk responses.     

移动通信电磁辐射初探

文章通过对移动通信基站和手机电磁辐射的分析,说明移动通信电磁辐射对人体健康存在一定影响,并提出相应对策。     

移动商务的价值链与商务模式研究

随着网络技术的不断进步，移动商务也渐渐成为一种新型的沟通方式，代表着网络时代商务模式发展的方向。本文从价值链和商务模式的角度探讨了移动商务的各种运作模式和利润实现模式，以期对中国移动商务的发展起到实际指导作用。     

一种基于移动代理的入侵检测系统

文章在讨论目前所使用的入侵检测技术的基础上,结合先进的移动代理技术,提出一种基于移动代理技术的入侵检测系统的模型。     

移动商务的特征与效益分析

移动商务是一种新型的电子商务交易方式。本文就移动商务的概念、特征以及移动商务所能带来得效益等方面,作详细的阐述。     

新型现浇连续箱梁移动模架造桥机设计与研究

文章结合实际工程施工实例,介绍了自主研发的移动模架造桥机的构造和功能,对造桥机结构进行了有限元计算分析,并讨论了施工对桥墩的影响,保证了该移动模架造桥机使用的安全可靠性。该新技术和新工法的成功应用,为其他桥梁工程提供了借鉴。     

中国手机电视的运营模式策略探析

中国手机电视业务的出现，加剧了手机发挥效用的环境条件的复杂性。当前中国手机电视运营遇到的问题主要有政策管制缺位及政策支持不力、手机电视接收终端技术不成熟、受众享用成本高、手机电视服务市场缺乏成熟的合作模式、手机电视节目内容严重匮乏、公共手机电视缺位等。政府应对手机电视业务给予政策支持。政府发展公共手机电视，市场发展商业性手机电视，并从传输网络、电视内容、收费模式等方面提出手机电视运营模式的发展方向。     

New Technology Adoption,Business Strategy and Government Involvement: The Case of Mobile Commerce

SUMMARY

This research focuses on understanding how business organizations are likely to adopt mobile commerce (m-commerce) technology. Mobile commerce adoption represents a complex process that draws in variables external to the firm such as the environment in which the business operates and the government involvement, as well as variables internal to the company such as its business strategy and its organizational culture. A model is formulated and several research propositions are offered. They will help understand the mobile commerce applications adoption process. Implications of this model and further research avenues are discussed.     

HTML5发展趋势的研究和探索

从2008年公布HTML5标准以来,行业内对其表现出了浓厚的兴趣以及产生了大量的争议,随着互联网的发展,来自各界的质疑也不断增加。本文对HTML5标准进行技术分析,结合其自身的特点以及所面临的困境与机遇,对这其进行一些研究与探索。     

基于WAP的大学英语移动教育系统研究与实现

当前大学生在大学英语学习过程中经常遇到的突出难题是:由于专业课和课后作业比较多,学生往往很难有足够的时间去学习英语。如何给学生提供一种教学环境,使学生可以在任何时间、任何地点进行见缝插针的英语学习,从而提高英语水平,是大学英语教学需要迫切解决的问题。此外,如何充分有效地将移动计算技术应用于教育,目前正在成为当今大学教育的研究热点。基于上述原因,本文结合大学英语教学的实际需求,设计并实现了基于WAP的大学英语移动教育系统,并给出了其实现的关键技术。应用实践表明,该系统可有效的提高学生大学英语的学习效率。