Relationships of loneliness and mobile phone dependence with Internet addiction in Japanese medical students

We investigated factors contributing to Internet addiction in 105 Japanese medical students. The subjects were administered by a self-reporting questionnaire designed to evaluate demographic factors, Internet addiction, loneliness, health-related lifestyle factors, depressive state, patterns of behavior, and mobile phone dependence. Results of multivariate logistic regression analysis indicated that loneliness and mobile phone dependence were positively related to degree of addiction. Our findings suggest that Internet addiction is associated with loneliness and mobile phone dependence in Japanese students.

Impact of Mobile Internet on Smart Phone

Along with the deployment of 3G networks and the launch of diversified mobile Internet services, network service modes and operation modes have greatly changed, and now the smart phone plays a key role. Accordingly, the key technologies for the smart phone, such as the application security management framework, application software authentication mechanism, interoperating capability and dynamic power management should be paid much attention to. The mobile phone vendors are gradually transforming into platform providers who will offer the support for services, including hardware, protocol stacks and storage, instead of providing specific services. Meanwhile, operators and Internet service providers will become the main body of service development.

Understanding the spatiotemporal patterns of nighttime urban vibrancy in central Shanghai inferred from mobile phone data

In recent years,major cities around the world such as New York in USA,Melbourne in Australia,and Shanghai in China,have planned to boost their nighttime urban vibrancy levels to spur the economy and achieve cultural diversity.The study of nighttime urban vibrancy from the perspective of spatiotemporal characteristics is increasingly being recognized as part of the essential work in the field of urban planning and geography.This research used mobile phone signaling records to measure urban vibrancy in central Shanghai and revealed its spatiotemporal patterns during nighttime.Specifically,this research explored the changes of urban vibrancy within a day,studied the distribution of urban vibrancy during the nighttime,and visually presented the spatiotemporal changes of nighttime urban vibrancy in central Shanghai.Moreover,on the basis of the behavior pattern of each mobile user,we classified nighttime urban vibrancy into three different types:nighttime working vibrancy,nighttime leisure vibrancy,and nighttime floating vibrancy.We then tried to determine how land use affected nighttime leisure vibrancy.The results showed that urban vibrancy in central Shanghai exhibits a periodic pattern over one-day period.A high-level nighttime urban vibrancy belt is present within central Shanghai.Business offices,hotels,entertainment and recreational districts,wholesale markets,and express services contribute most to the vibrancy at nighttime.In addition,the correlation analysis shows that public and commercial facilities generate high levels of nighttime leisure vibrancy than residential facilities.The mixed land use of public and commercial facilities and residential facilities within 500 m is more critical than the mixed use of a single land lot.The research can be a basis for supporting land use planning and providing evidence for policy-making to improve the level of nighttime urban vibrancy in cities.

Wilson病患者冲动性对数字成瘾倾向的影响及相关因素

目的探讨Wilson病(Wilson disease,WD)患者冲动性对数字成瘾倾向的影响及其相关因素。方法纳入66例WD患者为研究对象,根据临床表现分为脑型组42例、肝型组24例。采用网络成瘾量表(internet addiction test,IAT)评估患者网络成瘾倾向,总分>50分界定为具有网络成瘾倾向;使用Barratt冲动量表中文版(the Chinese version of the Barratt impulsiveness scale,11version,BIS-11-C)评估患者冲动性;手机依赖量表(mobile phone addiction index,MPAI)评估对手机使用的依赖程度;通过颅脑MRI检查患者病变脑区的部位和累计频次。结果66例WD患者中有数字成瘾倾向者45例(68.2%),其中脑型组中35例(53.0%)、肝型组中10例(15.2%),两组成瘾倾向者比例差异有统计学意义(P=0.001)。脑型组患者在BIS-11-C、MPAI量表多项因子分上高于肝型组(P<0.05)。所有患者MPAI量表中失控性因子分与BIS-11-C量表中的注意力冲动性因子分(r=0.499,P=0.001)、运动冲动性因子分(r=0.553,P=0.001)、无计划冲动性因子分(r=0.535,P=0.001)、冲动控制总分(r=0.653,P=0.001)正相关。线性回归分析显示注意力冲动性因子分与额叶病变(B=-1.634,P=0.018)相关联,失控性因子分与额叶病变(B=-3.609,P=0.023)相关联,戒断性因子分与丘脑病变(B=-5.047,P=0.007)、额叶病变(B=-2.204,P=0.024)相关联,逃避性因子分与顶叶病变(B=-1.867,P=0.032)相关联,低效性因子分与壳核病变(B=-1.789,P=0.016)、额叶病变(B=-1.592,P=0.044)相关联。结论脑型WD患者较肝型有更高的数字成瘾倾向,数字成瘾倾向与冲动性相关。WD患者的数字成瘾倾向可能与壳核、丘脑、额叶等多个脑区病变引起的冲动控制障碍有关。

Impact of Mobile Telephone on Maternal Health Service Care: A Case of Njoro Division

Every minute a woman dies due to pregnancy related complications globally, and half of these deaths occur in the developing countries. Despite knowing the main causes of these deaths, maternal mortality has remained high especially in Sub-Saharan Africa with 536,000 deaths annually. One of the main challenges is access to maternal health services. This study aims at assessing whether mobile telephone will improve uptake of selected maternal health services by expectant mothers at Njoro and Nessuit Health centers in Njoro Division, Nakuru. A total of 397 women were recruited between April 2012 and July 2012 and randomly categorized into two groups for follow up. One group of 191 women were routinely given prompts and advice about their health and scheduled visits while the other group of 206 women were allowed to continue with routine antenatal visits with no mobile telephone support. The results show 7.4% of those followed up had less than 4 antenatal visits while 18.6% of those not followed up had less than 4 visits P value 0.002 which shows there was a significantly higher proportion of women on follow up who had more than 4 antenatal visits. There was a significantly higher proportion of women on follow up who received diet and place of delivery counseling, malarial prophylaxis, iron and vitamin supplements and deworming drugs. There was however no difference in those who received tetanus toxoid and HIV counseling. 88.0% of the cases on follow up gave birth in a hospital as compared to 72.8% of those not on follow up with a P value of 0.000 which indicates strong association. Overall hospital delivery was 80.1% for this group a value much higher than national figures of 44%. Women provided with mobile telephone support are more likely to follow the scheduled antenatal advice and use the services as recommended than those who do not receive any support. Therefore mobile telephone should be used routinely to improve antenatal service uptake and communication with health providers.

Study on the Influencing Factors of“Internet+”Recycling of Waste Mobile Phone Dominated by Retailers

The popularization of smartphones and the acceleration of their replacement lead to a surge in mobile phone disposal.How to recycle waste mobile phones efficiently becomes a major problem in today’s society.The“Internet+”recycling mode is an effective way to solve this problem.The recycling process of waste mobile phones involves retailers,manufacturers,third parties and other recycling parts.Retailers have natural advantages compared with other parts because of their perfect sales network and logistics system.The system dynamics model for“Internet+”recycling of waste mobile phones dominated by retailers is constructed,and the Vensim software is used to simulate the influence of changes in two key factors in“Internet+”recycling environment:Annual operating cost of online platform and offline unit logistics cost on retailers’recycling volume and recycling profit.The results show that the investment of online platform operation cost is conducive to the increase of retailers’online waste mobile phone recycling volume and recycling profit,while the investment of offline logistics cost increases retailers’online waste mobile phone recycling volume,but reduces the recycling profit.

花卉大棚喷药机器人远程控制系统设计——基于互联网

针对花卉薄膜大棚传统人工施药效率低、喷洒不均匀且漂浮药物对人体健康造成伤害等问题,设计了一种可实现远程手机控制的悬挂式喷药机器人系统。首先,根据花卉的生长特点和大棚空间结构,在不改变现有大棚结构的前提下,通过增设导轨的方式引入喷药机器人,并依据花卉精准施药的基本要求,在SolidWorks中建模并优化喷药机器人的机械结构;其次,以MCU esp8266模块作为核心控制单元,对继电器、电机、电磁阀和药液泵等硬件进行控制,采用PWM方式调节继电器的导通时间,进而实现喷药机器人根据不同行进速度作业;最后,通过WiFi无线通信模块结合物联网平台设计远程控制APP端,实现喷药机器人启停和环境数据采集等功能。系统测试表明:在无遮挡和有遮挡物环境中,数据传输的成功率分别约为98%和93%,丢包率分别约为1.98%和7%,且喷药机器人在不同的速度下运行稳定。测试结果能够为喷药机器人在大棚内行走稳定性和对花卉自动施药提供技术参考。

基于手机信令数据的城市通勤碳排放分析

文中提出了一种在缺少用户个人社会经济属性数据的情况下,基于低频手机信令数据、POI数据、互联网位置数据,以及先验知识的面向宏观碳排放核算的出行方式判别方法,并通过基于实际通勤距离的自下而上碳排放计算方法实现不同通勤出行方式碳排放量化.基于提出的核算方法对上海市31 938人次的通勤碳排放进行了核算分析.结果表明:不同交通方式通勤碳排放量差异显著;存在高碳排放通勤群体,其样本量仅占总样本的11%,但其产生的碳排放占总量的55%.高碳排放通勤是长距离通勤和高碳排放出行方式共同影响的结果.

“手机直连卫星”技术发展与安全风险展望

“手机直连卫星”是第六代信息通信技术中“星地融合”的主流发展方向之一,具有概念多元、发展模式各异、标准化进程待推进、全球多国争抢行业布局等特征。首先,从手机直连卫星行业观察入手,归纳总结其技术发展模式与全球主要国家政策动向;其次,以总体国家安全观视角重点审视以手机直连卫星为代表的卫星互联网技术安全问题;最后,总结归纳了3类突出风险,为我国在卫星互联网这一领域的关键信息基础设施建设发展提供建议参考。

WAP技术分析及在移动Internet中的应用

WAP(Wireless Application Protocol)是随着 Internet和无线移动通信的发展而迅速发展起来的一种无线网络协议 .它定义了一个分层的 ,可伸缩的 ,可扩展的体系结构 .为移动 Internet提供全面解决方案 .使用 WAP协议 ,数字移动电话用户可以在无线网络享受与普通 Internet所提供服务一样的大多数服务内容 .在基于分析 WAP协议栈的基础上 ,研究了它的应用模型 ,并探讨 WAP在 GSM系统中的应用方案及在移动 Internet中的接入方法 .

mHealth as a health system strengthening tool in China

Over the past 70 years,there was a rapid epidemiological transition in disease burden in China,from infectious disease to non-communicable diseases(NCDs),which requires long-term prevention and management.Rapid growth in mobile phone use,internet connectivity and digital health technology,presents new opportunities for improvement in NCD healthcare delivery and population-based outcomes.Although there were a growing number of research to evaluate the feasibility and effectiveness of the mobile health(mHealth)interventions for NCD management,the extent to which mHealth contributes towards the health system strengthening in China remains unknown.In this paper,we provided a high-level overview of mHealth in China and its role for Chinese health system strengthening.We conclude with several recommendations for the future of mHealth research in China based on existing evidence identified.

The relationship between mobile phone use and risk of brain tumor: a systematic review and meta-analysis of trails in the last decade

The aim of the present meta-analysis was to identify whether there was a relationship between mobile phone use and risk of brain tumor.A comprehensive search strategy was developed,and studies were eliminated in a stepwise manner,based on the inclusion criteria.The current meta-analysis collected data from the 24 eligible studies to investigate the relationship between mobile phone use and risk of brain tumor,while a detailed analysis of different classification was also conducted in order to identify the risk of mobile phone use.From the results,the relationship between cell phone use and brain tumor incidence had no significant difference between men and women.Cell phone use can increase the RF energy absorbed in the brain and apoptosis genes expression level,but glioma cell line cells were not significantly affected.Most calculations of laterality show a trend of increasing risk for time since first use,cumulative duration of subscriptions,cumulative duration of calls,and cumulative number of calls.In Asian people's,cell phone use and glioma had certain relations,while has verylittle relationship with meningioma incidence.This result seems to be no racial difference.In children and teenagers,cell phone use is associated with the incidence of brain tumors.We need longer time observation to supervise longer time (＞20 years) mobile phone use whether has severe effects on incidence of brain tumor.

线上线下双向融合教学模式在骨科实习护生带教中的应用

目的探讨线上线下双向融合教学模式在骨科实习护生带教中的应用效果。方法选取2020年9月-2021年8月本院骨科的54例护理实习生作为对照组,2021年9月-2022年8月本院骨科的58例护理实习生作为试验组。对照组采用传统的本院教学方法,试验组采用基于智能手机线上线下双向融合教学,比较两组实习护生出科时的考核成绩和对教学的满意度。结果试验组实习护生的理论考核成绩、操作考核成绩及满意度得分高于对照组,两组比较,差异具有统计学意义(均P<0.05)。结论线上线下双向融合教学模式能提高骨科实习护生带教中教学质量,提高护生满意度,值得推广。

NOKIA 770 Internet Tablet：创造和被创造

诺基亚要在通讯领域创立自己的王国，当这个王国的概念从模糊的创想慢慢成为雏形时，它就要真正的庞大，于是它喊出一个口号：Living in a mobile world！于是它创造了NOKIA 770。注意，这个不是Cell phone，它是一个新玩意，诺基亚称它为Internet Tablet。简单来说，它就是一个浏览器，可以随时通过Wi-Fi、Bluetooth等多种方式上网冲浪。

基于智能手机“物理光学实验”教学模式的探索

利用移动互联网提供的信息传输及交互功能,利用智能手机在传感、信息采集、信息处理等方面的功能,探索基于移动互联网与智能手机的“物理光学实验”教学模式。该教学模式在实验教学的各个阶段,充分利用移动互联网和智能手机的信息化功能,可以提高实验课程的管理效率,补充实验设备的不足,引导和启发学生将信息化技术更多地运用于获得知识,激发学生学习的积极性、主动性,提升创新能力,有效地提高实验的教学质量和效果。

手机直连卫星通信:发展现状、应用场景和标准演进

为实现全球通信网络无缝覆盖,卫星通信将在未来发挥重要作用,国际上大量新兴商业公司相继开展卫星互联网系统规划和设计,发展态势不容小觑。在已有的地面移动通信协议体制基础上,通过适当改进,可利用移动手机终端与卫星建立直连通信。介绍了当前国内外手机直连卫星通信技术的发展现状及部分典型应用场景,详细分析了3GPP NTN标准演进情况,并初步阐述了未来存在的问题和挑战。

低头行为为何令人厌?归因与交谈目的在期望违背对负性情绪变化中的作用

目的探索低头行为发生时,内部归因和交谈目的在期望违背与负性情绪变化的关系中起到的作用。方法使用期望违背量表、归因量表和情绪量表对240名被试进行施测。结果(1)期望违背显著预测负性情绪变化;(2)内部归因在期望违背和负性情绪变化之间起中介作用;(3)内部归因和负性情绪变化的关系受到交谈目的的调节。结论研究结果揭示了低头行为下的期望违背对负性情绪变化的影响机制,对理解和降低低头行为的负性人际效应具有理论和现实指导意义。

基于物联网TLINK的汽车蓄电池电量手机远程监测系统

基于汽车蓄电池电量监测提出一种TLINK物联网远程监测系统架构,该架构可通过STM32+M202+M3528模块实现对汽车蓄电池电量进行远程、在线、无线、实时监测。经过对汽车蓄电池单独测试与实车连线测试,同时针对汽车蓄电池电量手机远程监测系统进行在线调试,试验结果显示,监测仪指示灯能够正常亮起,且汽车蓄电池实测电压与TLINK物联网云监测结果一致,电流测试值与TLINK监测结果存在0.1A的误差,但该误差符合系统预设误差阈值。调试结果说明该系统监测指标符合实际值,能够充分满足蓄电池监测预警需求。

Adaptive price adjustment method for used mobile phone based on dual deep fuzzy networks

Aiming at solving the problem that it is challenging to choose the appropriate price adjustment strategy according to the market fluctuations,an adaptive price adjustment method based on dual deep fuzzy networks(DDFN)is designed.First,a price adjustment model based on DDFN is established.Through interactively learning the recycling market environment,the description of the mapping relationship between the market environment information and the price adjustment action is realized.Second,based on a greedy strategy to calculate the optimal price adjustment action,it is possible to make small adjustments based on the preliminary estimated value of the waste mobile phone,and complete the judgment of the mobile phone recycling price.Third,based on the market feedback,the gradient descent algorithm is used to update parameters of the model to improve the performance.The proposed adaptive price adjustment method based on DDFN is applied to the actual transaction process,and the results show that the proposed method can ensure the accuracy and reliability of the adjustment results of the mobile phone recycling price.