Applications of biosensors for bacteria and virus detection in food and water–A systematic review

Biosensors for sensitive and specific detection of foodborne and waterborne pathogens are particularly valued for their portability, usability, relatively low cost, and real-time or near real-time response. Their application is widespread in several domains, including environmental monitoring. The main limitation of currently developed biosensors is a lack of sensitivity and specificity in complex matrices. Due to increased interest in biosensor development, we conducted a systematic review, com...     

高校计算机文化基础课程教学改革的新思考

随着计算机技术的飞跃发展,高校计算机基础课教育改革应该与时俱进。本文章分析了在新形势下,高校非计算机专业的计算机基础知识教育所面临的问题和特点,并提出了计算机基础课教育改革的一些方法和手段。     

自动监测数据管理及网络查询系统的设计与应用

文章介绍了环境空气质量日报及水质自动监测周报数据管理软件和基于web方式查询系统的总体设计及应用。以Microsoft Visual Basic6．0为开发平台，结合Access2000数据库平台设计开发了数据管理软件。运用ASP网络编程技术，实现了环境自动监测数据的网络查询和共享。经过在本机服务器系统实际应用效果较好，将其移植到真正的web服务器上即可实现开放式网络查询功能。     

The Spanish toxic oil syndrome: Some explanations for the pathology and an appraisal of the similarities with other episodes of food adulteration

In 1981 in Madrid, a new disease was identified, and attributed to the fraudulent sale of adulterated, industrial-quality oil as olive oil. The competing hypotheses for the clinical symptoms and tissue changes are reviewed but it is also important to note the general similarities between this epidemic and those other incidents where food adulteration has presented an acute hazard.     

Diversity of hydric soils in North Carolina,USA

Hydric soils are used as supportive evidence for wetland delineations by federal and state agencies and by the private sector in North Carolina, USA. An analysis of hydric soil distribution and hydric soil characteristics was conducted with county soil surveys and soil taxonomy of the USA. Approximately 100 hydric soils have been used for soil mapping in North Carolina, and they represent seven of the ten soil orders in soil taxonomy. An estimated 23% (2.9 million ha) of the land surface area in North Carolina supports hydric soils. Approximately 96% of the known hydric soil acreage was found in the coastal plain of North Carolina. Over one-third of the soils were hydric Ultisols, which represented close to 10% of the land surface area. The other soil orders with extensive hydric soil acreage included Histosols, Inceptisols, and Entisols. The soil orders were separated into great groups of soil taxonomy to discuss soil profile characteristics. Landscape positions and associated wetland communities were also presented. In North Carolina, a statewide inventory of wetlands does not exist and soil surveys offer a resource for a first approximation of wetland boundaries.     

菜市场噪声对周围环境的影响

南方的菜场都有从凌晨开始即进行贸易的特点，以盐城市众多菜场中最具代表性的老虎桥露天菜场为例，对菜场噪声及其对环境的影响进行了监测与评价，并提出控制措施。     

城市污水处理厂Web决策支持中心的设计与开发

研究开发了基于Web的城市污水处理厂决策支持系统(模拟系统、专家系统、培训系统),实现了决策支持中心的思想。介绍了城市污水处理厂Web决策支持中心的设计思想,以及利用.NET技术,以单机版决策支持系统为基础进行软件开发的方法。同时讨论了开发城市污水处理厂决策支持中心的意义,以及在本研究基础上进行深入科研工作的前景。     

重金属对食品的污染及其危害

铅、砷、汞、镉、锡等有毒重金属通过各种途径污染食品,沿食物链进入人体后,给人体健康带来严重危害.本文综述了几种重金属对食品的污染及其来源,对人体的危害及其预防,以便提高人们的食品安全意识,加强环境保护,维护人体健康.     

有机食品的发展现状及趋势探讨

介绍了有机食品的概念,分析了国际有机食品运动的发展方向、推动因素和市场潜力,预测今后几年内全球有机产品市场的年平均发展速率为15％－20％。同时,还分析了我国发展有机食品的国际环境、农业基础和发展模式,认为发展有机农业和有机食品是跨越绿色贸易壁垒的良策,国内的消费市场潜力和空间巨大,预测到2010年,我国有机食品占国内食品市场的比例可望达到1.0%-1.5%,占全球有机食品市场的份额则可望达到3.0%。