国家级园艺教学实验示范中心实验室双向管理研究

以西北农林科技大学园艺学院教学实验中心的实验室管理为例,探讨了高校实验室常规实验和创新实验的特点,阐述了应对这两类性质不同的实验所应持有的管理理念和方法,以及如何使两者和谐相处,并讨论实验室管理人员适应新形势所需做出的努力,旨在对高校实验管理探索提供借鉴.     

高校实验仪器操作技能课程模式的探索与实践

针对如何提高学生动手能力、降低实验仪器损坏率等问题,从实验课程内容、教材建设、教学方式与手段等方面,对开设仪器设备操作技能课程建设与实践的必要性进行了探讨.旨在实现理论与实践相结合,培养学生的动手动力和创新能力,提高实验仪器的利用率,调动实验教师队伍的工作积极性.     

浅谈高校实验室管理信息系统的开发模式

高校实验室管理信息系统能够减轻实验室管理人员的负担,提高管理效率和服务水平。本文主要介绍当前高校实验室管理信息系统的三种开发模式（C／S模式,B／S模式,混合模式）,详细分析了它们的优缺点,并列举了应用实例.     

室内测定不同玉米品种对亚洲玉米螟的抗性

 本研究采用室内盆裁不同玉米品种,待其长至50～70cm 高时,剪其顶部一段(约10cm),磨碎后分别加入人工饲料中,用以饲养亚洲玉米螟(Ostrinia furnacalis(Guenee)),经过一段时间后分别称虫重、量体长、观察记录化蛹时间,并用盆栽品种于室外栽植,进行田间测定.结果表明不同玉米品种在这几方面都有明显不同,所表现的抗螟性和感螟性与田间测定一致,从而可得出不同玉米品种抗螟性的差异.为筛选抗螟品种和指导推广大面积玉米品种提供了一个快捷简便的方法.     

植物科学与技术实验教学中心建设与特色分析

从持续推进实验教学示范中心建设出发,分析了实验教学示范中心建设的意义,从培养创新人才的高度,提出以推进实验教学示范中心建设为契机,全面提高实验教学质量,学校多举措加大投入力度,不断推进植物科学与技术实验教学中心的建设。     

Comparison of the effects of zinc nitrate-tetrahydrate and tributyltin-oxide on the reproduction and avoidance behavior of the earthworm Eisenia andrei in laboratory tests using nine soils

The aim of this contribution was to evaluate whether the sensitivity of the earthworm avoidance test is comparable to that of the earthworm reproduction test (standard test guidelines for both are available). The objective was to determine if relatively simple short-term tests are useful as an initial screening step for the environmental risk assessment (ERA) of potentially contaminated soils prior to performing long-term, elaborate tests. Therefore, the effects of two model substances, zinc nitrate-tetrahydrate and tributyltin-oxide (TBT-O) on the reproduction and the avoidance behavior of the earthworm Eisenia andrei were compared using Organization for Economic Co-operation and Development (OECD) artificial soil as well as eight natural soils, including LUFA St. 2.2 soil, covering a wide range of pH-values, organic matter content and texture. Almost all tests fulfilled the validity criteria defined in the two standard guidelines published by the International Organization for Standardization (ISO), despite the fact that the properties of natural soils differed clearly from those of OECD artificial soil. The median effective concentration (EC50) values estimated for zinc nitrate-tetrahydrate in 48-h avoidance tests and in 56-day reproduction tests were often similar when using the same soil (seven out of nine soils). However, in the case of TBT-O, the outcome was more complex: in two test soils the avoidance EC50 values were by a factor >3 higher than the reproduction EC50 values. In one of the test soils it was the other way around and the remaining soils showed comparable EC50 values in both tests. Summarizing the results obtained here and according to experiences reported in the available literature, the earthworm avoidance test may be recommended as an initial screening tool in the ERA of potentially contaminated soils. However, further research is needed to understand the factors that contribute to the difference in sensitivity between reproduction and avoidance tests.     

User-Accessed AGRICOLA Made Available to a Branch Campus Agriculture Program via the INTERNET and FirstSearch

ABSTRACT

In September 1992 Washington State University at Tri-Cities became one of the nation's first subscribers to OCLC's FirstSearch in order to make user-accessed AGRICOLA and its other automated indexing services available free of charge to everyone on the Ethernet, the branch campus computer network, with its telnet access to the Internet. Arrival of user-accessed AGRICOLA at WSU Tri-Cities was timely due to the addition of a new bachelor of science degree program in the integrated cropping systems typical of the surrounding Columbia Basin arid lands region; the opening of a Food and Environmental Quality Laboratory to monitor local use of pesticides and other substances; the presence on campus of the Cooperative Extension Services District Office, covering eleven counties in the area; and close links with the WSU Agriculture Research and Extension Center at nearby Prosser.     

进行实验室模型化建设的研究

实验室是科技创新的重要场所,是承担科研项目、培育科技创新成果、凝聚科技人才的主要阵地,也是科技创新体系建设的重要内容之一。本文在充分参阅国内外大量相关文献的基础上,深入研究了欧美等发达国家在实验室模型化建设方面的经验和做法,对其进行了归纳总结,分析了开展实验室模型化建设的目的和意义,并提出了如何进行实验室模型化建设要点,旨在为我国实验室建设与国际一流实验室接轨提供参考。     

鸡白痢沙门氏菌的分离与鉴定(英文)

[目的]探索20日龄雏鸡出现有关节肿胀,拉白色稀粪和少量死亡等症状的疾病病因,为鸡场的疾病诊断和防治提供建议和有效措施。[方法]采集病鸡样品并进行了细菌学检验。通过细菌分离、PCR、生化试验和回鸡试验鉴定出5株鸡白痢沙门氏菌。[结果]用这些分离株感染SPF雏鸡,能复制出与自然感染一致的病例。[结论]鸡白痢沙门氏菌是造成该养殖场本次疾病的主要病原。