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1.
Data were collected from 3556 Chinese junior and senior high school students to explore the associations between adolescent pathological Internet use (PIU) and parental variables, including parent–adolescent communication, parental Internet use and parental Internet-specific norms regarding adolescent Internet use. In particular, this study considered the different role of parental variables under two conditions: parental norms that were consistent or inconsistent with parents’ Internet use behaviors. The participants were asked to answer an anonymous questionnaire that included all mentioned factors. The results revealed an 11% rate of adolescent PIU, and hierarchical multiple regressions indicated that parent–adolescent communication predicted PIU negatively under both conditions. When parental norms were consistent with their Internet use behaviors, parental norms predicted adolescent PIU negatively; conversely, when parental norms were inconsistent with their Internet use behaviors, parental behaviors predicted adolescent PIU positively. Implications for family-based prevention and the limitations of this study are discussed.  相似文献   

2.
Despite growing public health concerns data on excessive Internet use (EIU) allowing for comparison between countries and over time are scarce. Our study is the first attempt to evaluate the changes and the impact of mobile access on EIU in Europe. It is based on data from 2 surveys of adolescents implemented in 2010 and 2013 in 7 European countries that used identical methodology; a total of 7663 adolescents were recruited by random stratified sampling. The levels of EIU were compared and a regression model was used to assess the impact of smart devices, the number of activities performed online, and the specific online applications. A small but significant increase of EIU levels was observed in Belgium, Denmark, Romania, the UK, and overall. Although smartphone use is a positive predictor of EIU, it is moderated by the increasing number of activities performed online. The increase in levels of EIU is also associated with the daily use of online games and social networking sites.  相似文献   

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In the increasingly user-generated Web, users’ personality traits may be crucial factors leading them to engage in this participatory media. The literature suggests factors such as extraversion, emotional stability and openness to experience are related to uses of social applications on the Internet. Using a national sample of US adults, this study investigated the relationship between these three dimensions of the Big-Five model and social media use (defined as use of social networking sites and instant messages). It also examined whether gender and age played a role in that dynamic. Results revealed that while extraversion and openness to experiences were positively related to social media use, emotional stability was a negative predictor, controlling for socio-demographics and life satisfaction. These findings differed by gender and age. While extraverted men and women were both likely to be more frequent users of social media tools, only the men with greater degrees of emotional instability were more regular users. The relationship between extraversion and social media use was particularly important among the young adult cohort. Conversely, being open to new experiences emerged as an important personality predictor of social media use for the more mature segment of the sample.  相似文献   

5.
We examined the relationships between physical activity and Internet use habits, using the Theory of Planned Behavior (TPB) and the Health Action Process Approach (HAPA) model as a framework. The purpose was to examine how Internet access, digital use, and time spent online correlate with the odds of engaging in three types of PA: strenuous, moderate, and muscle-strengthening Data relied on the Annual Social Survey conducted by Israel's Central Bureau of Statistics in 2010, with 6035 participants aged 20–65. Logistic regressions revealed that the odds of engaging versus not engaging in three types of physical activity were higher among Internet users compared to non-users. The odds of engaging versus not engaging in strenuous physical activity were higher among those who used the Internet for studying, social media, and downloading; in strengthening muscles were higher among those who used the Internet for seeking information and social media; and in moderate physical activity were higher among those who used the Internet for studying, compared to non-users. We suggest that the measured digital uses represent intention and action plans similar in their determinants to being physically active. Health care decision makers should increase availability of information on the Internet regarding a healthy lifestyle, concentrating on leisure-time physical activity habits.  相似文献   

6.
Literature suggests 4 hypotheses to explain social outcomes of online communication among adolescents: displacement, increase, rich‐get‐richer, and social‐compensation hypotheses. The present study examines which hypothesis is supported, considering differences in social ties (time vs. quality of social relationships; parent‐child relationships; friendships; school connectedness). This study's sample was 1,312 adolescents ages 12 to 18. Displacement hypothesis predicted negative associations between time in online communication and time with parents, but time with friends was not displaced. Examination of relationships among earlier sociability, online communication, and cohesive friendships supported the rich‐get‐richer hypothesis. That is, adolescents who already had strong social relationships at earlier ages were more likely to use online communication, which in turn predicted more cohesive friendships and better connectedness to school.  相似文献   

7.
●集藏 名称:集邮专辑 地址:http://www.wta.com/park_stamps/简介:该网页提供了大量美国和其他地方的邮票图片和资料,另外,还  相似文献   

8.
Apexx技术公司推出了Team Internet 300系列服务器产品,它几乎包括了目前市场上流行的所有Internet工具。在这些工具中包括支持用户进行Web漫游的软件等,所有这些工具都打包在一个黑色的服务器包装箱里面,其价格是3499美元。 NetPartners Internet Solutions公司开发的WebSense软件,是用来监视Internet访问活动的一个工具软件。在ZD实验室已经测试过的小型商业应用Internet具产品  相似文献   

9.
Internet     
选择自己的Java虚拟机。出于法律原因,Microsoft没有在最初的Windows XP CD-ROM上包含Java虚拟机(VM)。相反,Microsoft将其看作一个“即需安装”的组件:第一次访问带有Java编码的网站时,会提示你从Microsoft网站下载VM。目前,Microsoft的VM已经作为Service Pack 1的一部分发行。  相似文献   

10.
The paper presents results from an exploratory study that: (1) developed a theory-based measure of PIU and (2) administered the instrument to a sample of undergraduate students to assess the associations among PIU and several psychosocial variables including, depression, self-esteem, loneliness, and shyness. A new instrument, the Generalized Problematic Internet Use Scale (GPIUS) was designed to operationalize Davis's [Computers in Human Behavior, 17 (2001), 187] theoretical construct of generalized PIU. The GPIUS and several measures of psychosocial well-being were administered to 386 undergraduate students. Results from this preliminary study indicate that the GPIUS is both reliable and valid. A factor analysis identified seven unique sub-dimensions of the GPIUS, including: mood alteration, perceived social benefits available online, negative outcomes associated with Internet use, compulsive Internet use, excessive amounts of time spent online, withdrawal symptoms when away from the Internet, and perceived social control available online. All GPIUS subscales were correlated with psychosocial health variables including: depression, loneliness, shyness, and self-esteem. A regression analysis identified several important psychosocial and cognitive–behavioral predictors of negative outcomes associated with generalized PIU. Results also suggest that one's preference for computer-mediated social interaction, as opposed to face-to-face interaction, plays a role in the etiology, development, and outcomes of generalized PIU.  相似文献   

11.
羽翼未丰的Internet 2正在逐步履行承诺,即建立一个高速的网络系统为学术团体服务,其结果将对一般的网络用户产生很大益处。自从去年十月提出方案以来,Internet 2预计在今年年底之前,在服务的110所大学中联接30到40所大学,达到622Mb的网络服务传输速度。长远目标是建立一个永久性基础设施,运行速度是Internet的10倍。根据Internet 2的正式材料表明,其速率普遍将达到每秒45Mb。  相似文献   

12.
杨森  徐泽同 《计算机科学》2002,29(10):95-97
1.引言 20世纪90年代,Internet将地球连接成一个“信息村”。可以说,操作系统、TCP/IP协议族的结合构成了Internet。处在Internet之上的程序设计语言、数据库、浏览器、分布式面向对象技术等等结合在一起构成了Internet软环境。Internet上的应用是在Internet以及Internet软环境之上展开的。早期的Internet应用主要限于科学和教育领域,90年代进入金融、电信、CIMS、交通、能源等诸多领域。伴随世界经济全球化、信息化的步伐,建设Internet之上的电子商务成为Internet应用的热点,经济与Internet的结合成了Internet发展的动力。1992年后,美国相继开展了元计算和网格(Grid)计算的研究。目前,网格计算备受重视,它将会极大地促进In-ternet应用的发展。它们间的依存关系如图1所示。  相似文献   

13.
曾华燊 《计算机应用》2012,32(4):893-899
从Internet发展历史及应用环境变化的角度讨论IoT(Internet of Things)提出背景、内涵、组成结构和体系结构等关键问题。在分析对IoT的典型定义的基础上,笔者认为“ITU把IoT作为Internet平台在应用领域实现人、机、和智能化物理对象(SPO)信息全方位互通和实践普适计算理念的下一代Internet及其应用系统的概括”是对IoT更为合理的广义定义。以该定义为基础,全面地分析了“由多个用户域网(CPN)通过骨干通信子网互联”的基本组成结构,讨论了两类SPO CPN的基本组成结构及其支撑技术;指出SPO的引入主要影响CPN资源网络中的接入部分,属于应用系统的范畴,对Internet基本技术影响甚微。笔者不赞同以欧盟为代表的把IoT定义为联物专用网的狭义定义,指出其IoT模型和体系结构研究混淆了网络平台与应用系统,实质上是网络应用系统模型和体系结构。  相似文献   

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嵌入式Internet及嵌入式Internet技术   总被引:3,自引:0,他引:3  
Internet的出现和迅速发展极大地改变了或正在改变着人们的生活方式。目前,Internet已成为我们生活中不可或缺的一部分,它允许人们更加舒适和更加方便迅捷地获取、管理和传递信息。Interner的下一波增长动力是嵌入式Internet(Embedded Internet),即Internet技术在嵌入式系统中的应用,最终将各种嵌入式系统融入到Internet中。利用Internet技术.我们能够存取和控制日常生活中的各种电子设备,例如蜂窝移动电话、自动售货机、公用水电汽表、医疗监护设备、汽车、激光打印机、安全系统以及其它能够被存取和监控的设备。  相似文献   

16.
使用ActiveX Internet控件建立Internet应用程序   总被引:1,自引:0,他引:1  
使用Active X Internet控制组件来建立Internet应用程序是一条简单高效的途径。本文简要介绍了ActiveX Internet控件的易用性,说明了它们的一般使用方法,并结合VB给出了一个实例。  相似文献   

17.
本文介绍了Internet的最新进展,内容涉及Extranet、VRML语言、下一代Internet动议InternetⅡ、IPv6协议、Internet与ATM技术相结合的协议、Intranet、Internet电话和传真,以及Internet商务等各个方面,并展望了Internet今后的发展趋势。  相似文献   

18.
Internet邮件     
Apple公司最新推出的Newton(牛顿)系列MessagePad 2100,配置更多的内存和增强的网络功能。Apple的Newton系列是一个小型的手持便携计算设备,运行Newton操作系统。 MessgePad 2100面向移动计算领域,定价在1000美元左右,MessagePad 2000的内存增加到4MB,并配有一个以太网卡,提供快速高效  相似文献   

19.
Internet邮件     
HP笔记本电脑美国降价 降幅最高为17% 近日,HP公司对其OmniBook系列笔记本电脑的售价进行下调,其中包括OmniBook 5700、2000和  相似文献   

20.
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