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Breath odor characteristics after drinking alcoholic beverages and health monitoring. 饮用酒精饮料后呼吸气味特征及健康监测。
Pub Date : 2011-07-14 DOI: 10.2495/EHR110151
T. Oyabu
Alcohol concentration in the expiration of a subjective person after drinking was examined. Beer, Japanese sake, red wine and shochu were adopted as the alcoholic subjects. The sensor outputs after 1 hour and 2 hours of drinking were adopted in the technique. The concentration grade was indicated using three metal-oxide odor sensors. It became obvious that the alcoholic component in the expiration could remain over 3 hours after drinking. Japanese elderly people mostly prefer beer and sake according to a questionnaire survey which was carried out for the aged, and the number of people was 68. The survey was carried out by a mail correspondence method. The number of males was 37 and the female number was 31. Many persons who received the questionnaire preferred beer and sake to whiskey and wine. In this study, the sensor-output characteristic as a function of passage of time after drinking sake was investigated and the suitable amount could be indicated by a developed technique. This means an amount of alcohol from which the subject feels refreshment of mind and body. In the questionnaire, it became obvious that 61% of aged men habitually drunk and 18% of females drunk. Women also preferred wine, plum liquor and shochu cocktails. This system was developed to survey the aged life style and identify whether they drunk moderately or not. And it can be also applicable to health monitoring for the elderly person.
酒精浓度在一个人的主观饮酒期满后进行了检测。啤酒、日本清酒、红酒和烧酒被作为酒品。本技术采用饮水1小时和2小时后的传感器输出。使用三个金属氧化物气味传感器来指示浓度等级。很明显,保质期内的酒精成分在饮用后可以保留3个多小时。一项针对老年人的问卷调查显示,日本老年人最喜欢啤酒和清酒,调查人数为68人。这项调查是通过邮件通信的方式进行的。男性37人,女性31人。收到问卷的许多人更喜欢啤酒和清酒,而不是威士忌和葡萄酒。本研究考察了清酒饮用后传感器输出随时间变化的特性,并通过一种成熟的技术确定了合适的输出量。这指的是能让人精神和身体得到恢复的一定量的酒精。在调查问卷中可以明显看出,61%的老年男性习惯性饮酒,18%的老年女性习惯性饮酒。女性也更喜欢葡萄酒、梅酒和烧酒。该系统的开发是为了调查老年人的生活方式,并确定他们是否适度饮酒。也可用于老年人的健康监测。
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引用次数: 0
Occupational exposure to volatile organic compounds in the Portuguese printing industry 葡萄牙印刷业中挥发性有机化合物的职业暴露
Pub Date : 2011-07-14 DOI: 10.2495/EHR110211
S. Viegas
In the printing industry, volatile organic compounds main sources are the uses of organic solvents, fountain solutions and cleaning agents. Nowadays, one circumstance which might confuse the exposure reality is that the majority of solvents which are often used have a faint odour. Therefore, the conditions at offset printing in regard to solvent exposure may seem acceptable to workers. Fortunately, general ventilation and local exhaust systems have also become more common, and new printing machines, often with automatic cleaning, have entered the market. The health effects of volatile organic solvents are dependent on the chemicals involved but, normally, are associated with affecting the nervous system, the liver and also the kidneys. The purpose of this study was to document the conditions regarding exposure to volatile organic compounds in an offset printing unit and to permit identify task with higher exposure and with priority for preventive measures application. Exposure assessment was done before and after installation of general ventilation and local exhaust equipments and during printing and cleaning procedure. It was use portable VOCs measurement equipment with real-time measurements (MultiRAE, RAE Systems model) that allowed identify task with higher exposure. The need and appropriateness of ventilation introduction is measured by the significant statistically difference (p<.001) in the concentration results before
在印刷工业中,挥发性有机物的主要来源是使用的有机溶剂、润版液和清洗剂。如今,一种可能混淆暴露现实的情况是,大多数经常使用的溶剂都有一种微弱的气味。因此,胶印中溶剂暴露的条件似乎是工人可以接受的。幸运的是,一般通风和局部排气系统也变得越来越普遍,新的印刷机,往往具有自动清洗,已经进入市场。挥发性有机溶剂对健康的影响取决于所涉及的化学物质,但通常与影响神经系统、肝脏和肾脏有关。这项研究的目的是记录胶印单位接触挥发性有机化合物的情况,以便确定接触程度较高的任务和优先采取预防措施的任务。在一般通风和局部排气设备安装前后以及打印和清洁过程中进行了暴露评估。使用便携式实时测量设备(MultiRAE, RAE系统模型),可以识别高暴露任务。采用前浓度结果的显著统计学差异(p< 0.001)来衡量引入通气的必要性和适宜性
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引用次数: 5
Dioxins in remediation workers 修复工人体内的二恶英
Pub Date : 2011-07-14 DOI: 10.2495/EHR110221
C. Winder, G. Smith
A survey was conducted on workers involved in the remediation of a large, chemically contaminated site in Sydney, Australia. Workers were monitored for chlorinated dioxin and furan congeners in blood lipids over a two year period. Baseline levels of blood dioxins in workers starting at the site were similar to background dioxin levels in Australians (below 10 pg/g blood lipids). An action level of double the background levels (20 pg/g blood lipids) was used as an occupational health limit. As time progressed, blood lipid levels in workers increased, with the most likely source being exposure while working at the site. While levels of most congeners remain relatively even, most striking was the proportion of tetrachloro-congeners in exposed workers, which increased steadily. Worker exposure was above the action level in a small number of workers; these workers were transferred to other projects where the potential for dioxin exposure was absent. The role of congener profiling in occupational biological monitoring may provide additional information on workplace exposure to dioxins and related compounds.
在澳大利亚悉尼,对参与修复一个大型化学污染场地的工人进行了一项调查。在两年的时间里,对工人的血脂进行了氯代二恶英和呋喃同系物的监测。从现场开始工作的工人血液中二恶英的基线水平与澳大利亚人的背景二恶英水平相似(低于10 pg/g血脂)。作用水平为背景水平的两倍(20 pg/g血脂)作为职业健康限值。随着时间的推移,工人的血脂水平升高,最有可能的原因是在现场工作时暴露。虽然大多数同系物的水平保持相对均匀,但最引人注目的是接触工人中四氯同系物的比例稳步上升。少数工人的接触量高于行动水平;这些工人被转移到其他没有二恶英暴露可能性的项目。同系物谱分析在职业生物监测中的作用可提供有关工作场所接触二恶英及相关化合物的额外信息。
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引用次数: 0
Do lateral dominance, body mass, body height and direction of perturbation influence the lehr's damping ratio, which characterizes the balancing ability on an unstable oscillatory platform? 横向优势、身体质量、身体高度和扰动方向是否会影响表征不稳定振荡平台上平衡能力的莱尔阻尼比?
Pub Date : 2011-07-14 DOI: 10.2495/EHR110321
R. Kiss
An unstable oscillatory platform can be used as a simple measuring instrument for modelling balancing capacity. We sought to determine the effects of (1) lateral dominance, (2) body mass, (3) body height and (4) the direction of perturbation on the Lehr’s damping ratio for characterizing the balancing ability of 80 healthy young participants on an unstable oscillatory platform. Tests were performed while standing on both limbs and on one limb (dominant or nondominant), and the direction of oscillation was anterior-posterior and mediallateral. The healthy patients were divided into four groups based on body height and into five groups based on body mass. The average value of the Lehr’s damping ratio was significantly smaller for participants standing on their nondominant limb compared to their standing on both limbs or on the dominant limb. The largest difference of the Lehr’s damping ratio was 0.014 (2.5%) comparing the groups with different body mass, and it was 0.012 (2.1%) comparing the groups with different body height. A weak correlation was found between the Lehr’s damping ratio and body mass (r=0.14) and between the Lehr’s damping ratio and body height (r=0.19). There was a significant difference when comparing the Lehr’s damping ratio determined from oscillation in the anterior-posterior direction to the Lehr’s damping ratio determined from oscillation in the medial-lateral direction (p<0.008). Based in our results the
一个不稳定的振荡平台可以作为一个简单的测量仪器来模拟平衡能力。我们试图确定(1)横向优势,(2)体重,(3)身高和(4)扰动方向对表征80名健康年轻参与者在不稳定振荡平台上平衡能力的Lehr阻尼比的影响。实验分别在双肢站立和单肢站立(优势或非优势)时进行,振荡方向为前后和内外侧。将健康患者按身高分为4组,按体重分为5组。站在非优势肢上的参与者的Lehr’s阻尼比站在四肢上或优势肢上的参与者的平均值要小得多。不同体重组的Lehr阻尼比差异最大,为0.014(2.5%),不同身高组的Lehr阻尼比差异最大,为0.012(2.1%)。Lehr阻尼比与体重(r=0.14)、身高(r=0.19)呈弱相关。前后方向振荡测定的Lehr阻尼比与中外侧方向振荡测定的Lehr阻尼比比较差异有统计学意义(p<0.008)。根据我们的结果
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引用次数: 3
A choice experiment approach to the valuation of air pollution in Mashhad, Iran 伊朗马什哈德空气污染评估的选择实验方法
Pub Date : 2011-07-14 DOI: 10.2495/EHR110041
M. Ghorbani, S. Kulshreshtha, A. Firozzarea
This study describes the results of a survey carried out in Mashhad, Iran. The survey was designed using choice-modeling techniques and intended to discover what valuation Mashhad residents placed on air pollution and the abatement of air pollution. The survey results were analyzed using a nested logit (NL) model. This analysis then allowed a consideration of the improvements in household welfare that might be expected under different scenarios of air pollution control. Researchers sampled two populations: inhabitants of areas with high air pollution and inhabitants of areas of moderate pollution. The results indicated that the inhabitants of the areas suffering the worst air pollution had the highest willingness to pay (WTP) for a reduction in pollution.
本研究描述了在伊朗马什哈德进行的一项调查结果。该调查是使用选择建模技术设计的,旨在发现马什哈德居民对空气污染和空气污染缓解的评价。调查结果采用嵌套logit (NL)模型进行分析。然后,这种分析允许考虑在不同的空气污染控制方案下可能预期的家庭福利的改善。研究人员对两类人群进行了抽样:重度空气污染地区的居民和中度污染地区的居民。结果表明,空气污染最严重地区的居民对减少污染的支付意愿最高。
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引用次数: 3
Eco-biosociocultural H5N1 disease model in Egypt 埃及的生态-生物-社会文化H5N1疾病模型
Pub Date : 2011-07-14 DOI: 10.2495/EHR110231
S. L. Wilson, N. Oushy
This paper explores environmental and behavioral interactions that facilitate human exposure to the highly pathogenic avian influenza (HPAI) H5N1/A virus (termed bird flu or H5N1 throughout this document) in Egypt. The approach used in this research integrates public health and anthropological methods to assess environmental and behavioral interactions that facilitate human exposure to bird flu. Four key elements of the H5N1 eco-biosociocultural model were identified: (1) the subsidized natural environment; (2) the built environment; (3) the socio-political and economic environment; and, (4) the cultural environment. Analysis of these elements resulted in development of an eco-biosociocultural disease model for H5N1 that addresses health disparities by incorporating the built and subsidized natural environments integrated with associated cultural beliefs, knowledge, and behaviors. Our results suggest that the disparate incidence and mortality pattern of H5N1 in Egypt is likely affected by increased exposure opportunities among women and children resulting from lack of knowledge, traditional daily activities, poultry practices, and child-rearing activities. Despite community based health education efforts, knowledge about poultry diseases and H5N1 transmission are not well understood among Egyptian women. In the absence of a perceived immediate bird flu threat, this research suggests that women tend to maintain traditional behaviors. The H5N1 epidemiologic footprint in Egypt differs from other countries, but the lessons learned provide a basis for health education action that may be transferable to other venues.
本文探讨了促进埃及人类接触高致病性禽流感(HPAI) H5N1/A病毒(在本文件中称为禽流感或H5N1)的环境和行为相互作用。本研究使用的方法综合了公共卫生和人类学方法,以评估促进人类接触禽流感的环境和行为相互作用。确定了H5N1生态-生物-社会-文化模式的四个关键要素:(1)补贴的自然环境;(二)建成环境;(3)社会政治和经济环境;(4)文化环境。对这些因素的分析导致了H5N1的生态-生物-社会文化疾病模型的发展,该模型通过将人造和补贴的自然环境与相关的文化信仰、知识和行为相结合来解决健康差异。我们的研究结果表明,H5N1在埃及的不同发病率和死亡模式可能是由于缺乏知识、传统的日常活动、家禽实践和儿童养育活动导致妇女和儿童接触机会增加所致。尽管开展了以社区为基础的卫生教育工作,但埃及妇女对家禽疾病和H5N1传播的知识并不十分了解。这项研究表明,在没有立即感受到禽流感威胁的情况下,女性倾向于保持传统的行为方式。埃及的H5N1流行病学足迹不同于其他国家,但从中吸取的经验教训为卫生教育行动提供了基础,这些行动可推广到其他地方。
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引用次数: 3
Numerical evaluation of the slope and intercept of end-systolic pressure-volume relation 收缩期末期压力-容积关系斜率和截距的数值计算
Pub Date : 2011-07-14 DOI: 10.2495/EHR110291
R. Shoucri
Numerical evaluation of two methods to calculate slope and intercept of endsystolic pressure-volume relation (ESPVR) in the left ventricle is presented. The mathematical formalism is based on results previously published in which the active force of the myocardium (also called isovolumic pressure Piso) is introduced in the formalism describing the pressure-volume relation (PVR) in the left ventricle. The numerical calculation is simple and can be easily implemented in routine clinical work, only the ventricular pressure Pm near endsystole needs to be estimated. A thick-walled cylindrical model contracting symmetrically is assumed for the left ventricle.
对两种计算左心室收缩期压力-容积关系(ESPVR)斜率和截距的方法进行了数值评价。数学形式是基于先前发表的结果,其中心肌的主动力(也称为等容积压Piso)被引入描述左心室压力-容积关系(PVR)的形式。数值计算简单,易于在临床日常工作中实施,只需估计收缩期附近的心室压Pm即可。假设左心室为对称收缩的厚壁圆柱形模型。
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引用次数: 4
MRI: a tool for measuring turbulent intensities in flow systems 磁共振成像:一种测量流动系统湍流强度的工具
Pub Date : 2011-07-14 DOI: 10.2495/EHR110411
O. Adegbite, L. Kadem, B. Newling
Understanding the fluid-structure interaction and fluid dynamics downstream of an obstruction is crucial in the design and fabrication of devices that find application in both medicine and industry. It is known that the fluid flow patterns downstream of an obstruction may be very complex and are three dimensional, including the formation of vortices, recirculating flow, flow separation and the onset of turbulence. The development of any such pattern of flow might be detrimental to the optimal performance of the flow system. In this work we have used the magnetic resonance imaging (MRI) technique to investigate flow dynamics downstream of an artificial heart valve. MRI is a naturally threedimensional, non-invasive technique that finds application in clinical, biomedical research and materials research. It has the capability to visualize the internal structure of materials and also to quantify mass transport properties. In this in vitro study, we have measured the turbulent diffusivity and velocity downstream of the valve in two configurations (fully opened and partially opened). Our particular implementation of the MRI measurement (known as SPRITE imaging) is unusually robust to fast turbulent flows and has been demonstrated effective at Reynolds numbers on the order 10 5 , much higher than possible with most conventional, clinical MRI techniques. The results showed a low turbulent diffusivity downstream of the fully opened valve configuration, while the turbulent diffusivity is higher downstream of the partially opened valve coupled with a high-velocity fluid jet and recirculating flow. There are distinct
了解流固相互作用和阻塞下游的流体动力学对于在医学和工业中应用的设备的设计和制造至关重要。众所周知,障碍物下游的流体流动模式可能非常复杂,是三维的,包括涡旋的形成、再循环流动、流动分离和湍流的发生。任何这种流动模式的发展都可能不利于流动系统的最佳性能。在这项工作中,我们使用磁共振成像(MRI)技术来研究人工心脏瓣膜下游的流动动力学。MRI是一种天然的三维、非侵入性技术,在临床、生物医学研究和材料研究中得到了应用。它具有可视化材料内部结构和量化质量输运性质的能力。在这项体外研究中,我们测量了两种配置(完全打开和部分打开)下阀门下游的湍流扩散率和速度。我们的特殊实现的MRI测量(被称为SPRITE成像)对快速湍流具有不同寻常的鲁棒性,并且已被证明在10 5数量级的雷诺数下有效,远远高于大多数传统的临床MRI技术。结果表明:阀门全开状态下下游湍流扩散系数较低,而阀门部分开启状态下下游湍流扩散系数较高,同时存在高速射流和再循环流。有不同的
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引用次数: 0
Study of mutagenic effects of a packaging system with oxygen absorbers on sweet bakery products 含氧吸收剂包装系统对甜烘焙产品致突变性的研究
Pub Date : 2011-07-14 DOI: 10.2495/EHR110191
R. Sueiro, M. J. Garrido, M. Araujo
In the present study, the potential mutagenic effects of a packaging system for food containing oxygen absorbers was evaluated on a popular sweet bakery product (glazed doughnuts) stored at 20oC along its extended self life by using the Salmonella typhimurium His - test with the tester strains TA98, TA100, TA1535 and TA1537 and Escherichia coli Trp
采用鼠伤寒沙门菌(Salmonella typhimurium)和大肠埃希氏杆菌(Escherichia coli),以TA98、TA100、TA1535、TA1537为检测菌株,对含氧吸收剂食品包装系统在20℃贮藏过程中的潜在诱变效应进行了评价
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引用次数: 0
Breaking the connections: reducing and removing environmental health risk in the Canadian nuclear power industry 打破联系:减少和消除加拿大核电工业的环境健康风险
Pub Date : 2011-07-14 DOI: 10.2495/EHR110061
J. Eyles, Jana Fried
In this paper, we examine how over the past twenty five years the nuclear industry has used various strategies to diminish or remove any environmental health risks that emanate from its practice and activities. Using both industry and critical website materials, we demonstrate how risk is removed by emphasizing its own safety culture in a complex process, its ‘clean energy’ credentials, its role in producing national energy options, close co-operation with its regulators, the ignorance of its critics, the suppression of opposing views and a narrowing risk assessment approach to potential environmental and health hazards. We suggest that the same strategies will be used after the recent Japanese nuclear disaster.
在本文中,我们研究了在过去的25年里,核工业是如何使用各种策略来减少或消除其实践和活动产生的任何环境健康风险的。利用行业和关键网站材料,我们展示了如何通过强调其自身在复杂过程中的安全文化,其“清洁能源”证书,其在制定国家能源方案中的作用,与监管机构的密切合作,对批评者的无知,压制反对意见以及对潜在环境和健康危害的缩小风险评估方法来消除风险。我们建议,在最近的日本核灾难之后,同样的策略将被使用。
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引用次数: 0
期刊
WIT Transactions on Biomedicine and Health
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