为全球信息社会制订全球标准

随着信息使用费用的急剧下降 ,我们可以使用的信息量不仅比以前大大增加 ,而且使用信息的人数也越来越多。现在社会学家已不再谈及技术时代、计算机时代或电子时代了 ,因为我们这一代正在建立的社会是信息社会 ,它将给人类生活的各个方面带来重大改变。为使全球各地能真正公平合理地享受信息社会带来的益处 ,信息社会必须覆盖全球。数字电子设备包括的计算机网络、数字电视、3G电话以及相关硬件、软件和服务是信息社会的关键构件 ,也可以把它们统称为信息通讯技术 (ICTs)。ICTs对信息和知识的电子化传播是必不可少的 ,没有ICTs就没有全…     

火线驰骋

全新的梅赛德斯C63 AMG和雷克萨斯IS F信誓旦旦,扬言要瓜分顶级豪车的市场。我们将它们同宝马最新的4门M3和目前该车系的佼佼者Audi RS4放到一起同场竞技,看看哪一台可以让驾驶者最为吃惊。     

新装值得炫耀

如果无人提示,事先不够了解,会有不少人初次遇到PASSAT新领驭时,误认为它是一部新车吧?这次的大改款,不是成功,而是很成功。新领驭摆在面前时,忍不住想起PASSAT是怎样走入我的身边世界的。我有一个聪明朋友,2001年刚刚认识他时,开一部已有几年车龄的PASSAT B4。我们首次见面就是去金湖港式茶餐厅夜宵,当时内心不免暗暗嫉妒:这个跟我同岁的小子好有钱。又过不到两年,这个供职股票交易所的家伙     

Evaluating the effectiveness of a smartphone speed limit advisory application: An on-road study in Port-Harcourt,Nigeria

The development of mobile phone applications that provide speed limit advice and warnings offers opportunities for use of the technology in the improvement of driver safety. This paper looks at the effect of an advisory Intelligent Speed Assistance (ISA) application on driver speeding behaviour. Twenty participants (all males within the age range of 35–60 years) completed a within-group experimental design. Participants drove in real traffic on a 46 km test route which incorporated three-speed limits zones (50 km/h, 60 km/h, and 80 km/h speed limits) and aggregated into 10 different segments. Compared with baseline levels, possible impacts of ISA system functionalities on driver behaviour were studied through appropriate metrics including cumulative speed distribution, mean speed, speed deviation, 85th percentile speed, percentage distanced travelled above the speed limit, and safety benefit estimation. Results indicated the use of the ISA application led to significant improvement in speed limit compliance particularly in the 60 km/h and 80 km/h zones where speeding was eliminated. There were no observed negative effects on driver speeding behaviour from the use of the system. In general, the findings suggest the use of the ISA system, resulted in the adoption of vehicle speeds that are likely to improve road safety.     

Environmental equity in participation of the Clean Air School Bus Program: The case of New York State

The vast majority of American children rely on school buses for their daily trips to and from school, and almost all of these school buses operate on diesel fuel. Research has found that during their daily commute, children are exposed to unhealthy levels of diesel exhaust. We assess equity among school districts that chose to apply to the New York State Clean Air School Bus Program and those that did not. Binary logistic regression was employed to reveal the effects of demographics and other social economical factors on the choice of applying when controlling for other factors that are likely to affect a school district’s decision process. It was found that economic variables had a significant impact on the likelihood of a school district applying to the program.