无线局域网在医院网络环境中的应用探讨

本文从抗干扰性、传输性能、安全性、与医疗设备的互作用等方面探讨了无线局域网在医院网络环境中的应用。作为对有线网络的补充,对WLAN在医院内应用的优势和应用前景进行了分析。     

我院卫校无线网络工程改造与实施

无线局域网（WLAN）作为有线局域网的补充,有效地克服了有线网络的弊端。本文介绍了我院卫校无线网络的具体组网架构、网络硬件的选择及网络安全设计与实施过程。WLAN的应用,有效地解决了网络同频信号干扰严重、切换频繁等诸多问题,实现了整个医院安全、可管理的无线信号均匀覆盖。     

无线局域网技术在医院网络系统中的应用研究

目的：随着移动计算机技术的普及及无线网络技术的发展,探究无线局域网（wLAN）技术在各种复杂组网环境中的应用。方法：在阐明WLAN定义和特点等基本概念的基础上,详细分析WLAN标准族的技术特点和发展过程,对独立办公区和医院内部小范围覆盖的组网方式做重点论述。结果：以实践为基础,给出实现具体组网的设备配置要点,对于理解WLAN技术和使用设备给予帮助。结论：计算机无线局域网作为有线局域网的有效补充已在医院实施运行,并且有很好的应用前景。     

无线网络在医院门诊输液中的应用

无线局域网(Wireless Local Area Network,简称WLAN),是计算机网络与无线通信技术相结合的产物。作为医院有线局域网的补充,WLAN有效地克服了有线网络的弊端,医护人员利用PDA、平板无线电脑和移动手推车电脑随时随地进行生命体征数据采集、医护数据的查询与录入、移动查房、床边护理、病人标识码识别以及基于WLAN的语音多媒体等应用,充分发挥了医疗信息系统的效能,突出了数字化医院的技术优势。     

天线应用在医疗行业探讨

无线局域网（WLAN）有效地克服了有线网络的弊端,利用PDA或平板无线电脑随时随地进行生命体征数据采集、医护数据的查询与录入、医生查房、床边护理、无线输液管理、移动心电、护理监控、病人标识码识别,以及基于WLAN的语音多媒体应用等等,充分发挥医疗信息系统的效能,突出数字化医院的技术优势。     

无线应用在医疗行业探讨

无线局域网(WLAN)有效地克服了有线网络的弊端,利用PDA或平板无线电脑随时随地进行生命体征数据采集、医护数据的查询与录入、医生查房、床边护理、无线输液管理、移动心电、护理监控、病人标识码识别,以及基于WLAN的语音多媒体应用等等,充分发挥医疗信息系统的效能,突出数字化医院的技术优势.     

无线局域网技术在医疗行业中的应用

目的 将无线局域网技术应用于医院,使医院工作效率提高,减少医院设备的干扰因素,获取医疗信息更为便捷、快速.方法 配置CISCO路由器与核心交换机于医院局域网之中,同时通过设置IP地址、VLAN连接等方式实现医院内部局域网的无线连接.结果:应用该无线局域网技术后,医院的工作效率得到了大幅度提升,医护人员获取信息的渠道更为可靠,医院内部网络的安全性得到提升.结论 无线局域网技术作为一种较为成熟的技术,在医疗行业的应用与发展前景相当广阔,应给予大力推广应用.     

无线局域网对医疗设备潜在干扰的测试研究

本文描述了通过对无线局域网（WIAN）与医院医疗设备之间是否存在干扰的实际测试，得出未发现无线局域网对多种医疗设备造成干扰的结论，从而为制定面向中国医疗行业的《医院无线局域网的部署规程（草案）》提供科学证明。     

无线局域网技术在医院的应用

近年来,IT在国内外医疗市场得到了广泛的应用,无线医疗设备应用迅猛增长,利用计算机管理系统进行医生查房、护士执行医嘱、药剂师配药和分发、医技科室医嘱确认、各终端计费等,已成为各医院工作人员日常工作必不可缺的重要工具。阐述了无线局域网的原理和相对于有线网络的应用优势,详细介绍了无线局域网在我院的实施过程(包括选型、搭建、调试)及最终的应用目标——护理查房无线化,说明了应用无线局域网给我院带来的间接效益:提高了医生、护士、管理人员及相关部门的协调运作,改善工作流程、提高工作效率,从而提高病人的满意度,为实现医院管理的数字化奠定了坚实的基础。     

无线局域网在PACS系统中的应用

文中测试了不同距离和模式下802.11g无线局域网的传输速率,测试了PACS系统在802.11g无线局域网中的实际传输速率,探讨了无线局域网在医院PACS系统应用中存在的主要问题和应用前景.     

Calcium intake in the elderly: validation of a dietary questionnaire

Epidemiological studies of calcium and osteoporosis have been hampered by the lack of a suitable tool for assessing calcium intake. This report describes a new frequency and amount questionnaire for measuring present and past calcium intake in the elderly. The validity of the questionnaire was tested against two commonly used standards of dietary assessment, five-day duplicate diets and seven-day weighed dietary inventories. The resulting correlation coefficients were, respectively, r = 0.76 and r = 0.69, while that for repeatability was r = 0.84. Furthermore, the questionnaire categorized subjects into thirds of the distribution of intake with almost no gross misclassification. It is suggested that the present findings may be extended to the majority of normal, healthy elderly subjects, implying wide application for the questionnaire in the assessment of calcium intake in the elderly.     

Self-reported health problems among Swedish miners one year after unemployment

Unemployment is considered to be a public health concern sincedeterioration in the health of the unemployed is often anticipated.However, for some groups, such as miners, unemployment mightimprove health due to a cessation of potentially harmful occupationalexposures. This study evaluates the health of 79 miners in oneSwedish iron-ore mine, and 226 age-matched controls from thegeneral population, during one year after the closure of themine. The participants received a questionnaire regarding medicalhistory and subjective symptoms at the beginning of the studyperiod, and after one year. Statistically significant negativeeffects on self-reported health attributable to unemploymentwere not found, although neuropsychiatric symptoms were morecommon among the unemployed miners. The miners reported a statisticallysignificant improvement in grip force (p=0.031). They had asignificantly higher prevalence of symptoms associated withmining related exposures when compared with the population controls;pain in the upper extremities [relative risk (RR)=2.27, 95%confidence interval (Cl)=1.44–3.59), back pain (RR=1.84;Cl=1.237–2.75), vasospastic disease of the fingers (RR=2.05;Cl=1.18–3.57) and obstructive respiratory symptoms (attacksof dyspnea and wheezing: RR=3.67; Cl=1.167–11.6).     

Excès de cas humains et animaux de tularémie en France au cours de l’hiver 2007–2008 : émergence ou phénomène isolé ?

Context

Tularemia is a zoonosis affecting humans and hares in France. We describe the results of surveillance in both species, in 2007 and 2008.

Methods

Human tularemia cases are mandatorily notifiable in France since 2003. In hares, surveillance relies on volunteer hunter associations in all districts of the country. Data from mandatory reports and volunteer surveillance in 2007/2008 were analyzed and compared with previous results.

Results

In 2007/2008, 144 cases were reported in humans and 117 cases in hares. This was a 100% increase compared to previous years. Human cases differed from those of previous years only by the frequency of contact with breeding animals. Human cases without any documented risk exposure were also more frequent.

Conclusion

An increase of tularemia cases occurred in 2007/2008 in both species. Complementary studies are needed to identify the species reservoir in France to understand the causes of this peak of cases.     

Occupational health hazards in mining: an overview

This review article outlines the physical, chemical, biological, ergonomic and psychosocial occupational health hazards of mining and associated metallurgical processes. Mining remains an important industrial sector in many parts of the world and although substantial progress has been made in the control of occupational health hazards, there remains room for further risk reduction. This applies particularly to traumatic injury hazards, ergonomic hazards and noise. Vigilance is also required to ensure exposures to coal dust and crystalline silica remain effectively controlled.     

深圳公立医院管理体制改革制度设计

深圳公立医院管理体制改革实行政事分开、管办分开,在理事会架构下按法定机构模式组建市医管中心,落实公立医院运营管理自主权.作者从当前公立医院管理体制的弊端入手,介绍了深圳市进行公立医院管理体制改革的基本思路及改革方案设计的主要举措,深入剖析了的改革方案的特点,并对改革效果进行了预测.     

Manufacture and use of nanomaterials: current status in the UK and global trends

This paper provides an overview of the production and use of nanomaterials (NMs), particularly in the UK. Currently, relatively few companies in the UK are identifiable as NM manufacturers, the main emphasis being the bulk markets in metals and metal oxides, and some niche markets such as carbon nanotubes and quantum dots. NM manufacturing in the UK does not reflect the global emphasis on fullerenes, nanotubes and fibres. Some assumptions have been made about the types of NM that are likely to be imported into the UK, which currently include fullerenes, modified fullerenes and other carbon-based NMs including nanotubes. Many university departments, spin-offs and private companies have developed processes for the manufacture of NMs but may only be producing small quantities for research and development (R&D) purposes. However, some have the potential to scale up to produce large quantities. The nanotechnology industry in the UK has strong R&D backup from universities and related institutions. This review has covered R&D trends at such institutions, and appropriate information has been added to a searchable database. While several companies are including NMs in their products, only a few (e.g. manufacturers of paints, coatings, cosmetics, catalysts, polymer composites) are using nanoparticles (NPs) in any significant quantities. However, this situation is likely to change rapidly. There is a need to collect more information about exposure to NPs in both manufacturing and user scenarios. As the market grows, and as manufacturers switch from the micro- to the nanoscale, the potential for exposure will increase. More research is required to quantify any risks to workers and consumers.     

Effects of nitrogen dioxide on red blood cells of rats: Changes in components of red cell membranes during in vivo exposure to NO2

Red cell membranes, prepared from red blood cells of rats exposed to 4, 10, or 20 ppm nitrogen dioxide (NO₂) for 1 to 10 days, were examined for evidence of changes in membrane components. Appreciable changes were not found in contents of phospholipid and cholesterol during exposure to 10 ppm NO₂. By contrast, protein content altered with the time of exposure. Moreover, changes in protein composition were observed by employing sodium dodecyl sulfate — polyacrylamide gel electrophoresis. Twenty-four-hour exposure to NO₂ at the concentration above 10 ppm resulted in a marked increase in the percentage of lysophosphatidylethanolamine (LysoPE) to the total phospholipids. The prolonged exposure to 10 ppm NO₂ gave rise to a further increase in LysoPE, whereas the percentage of phosphatidylethanolamine (PE) showed a gradual decrease. A 1-day exposure to 4.0 ppm NO₂ also caused an increase in sialic acid content and decreases in those of PE and hexose. In addition to contents of these components the percentage of LysoPE increased 5 days after exposure and the elevated values were maintained up to the end of exposure period. These results demonstrate that red blood cells in circulation exhibit different membrane properties in terms of lipid and carbohydrate composition during 10 days of exposure to 4.0 ppm NO₂.     

Investigating clusters in the workplace and beyond

Clusters of disease are common and occur in the workplace and in the general community. They often arouse considerable concern among the population. Investigations have sometimes lead to exciting new knowledge, but in general the investigation of clusters is difficult and often unrewarding, especially for community clusters. In the workplace, investigations are more likely to find associations and even new causes, but still many clusters remain enigmatic. Despite this, there are many reasons for investigating clusters, including allaying community concern and identifying uncontrolled exposures. A structure for investigating clusters in the workplace is suggested.