美国高校信息素养教育研究及启示

信息素养已成为当今人才考核的重要指标,如何提高用户信息素养成为图书馆人持续关注的重点。美国高校从理论和实证两方面针对信息素养教育开展了大量卓有成效的研究,对此探究有利于发现国内信息素养教育存在的不足,并为今后的探索指明了方向。     

基于CVM的游憩资源非使用价值评估——以福州乌山风景区为例

通过实地问卷调查,应用条件价值评估法(CVM)对福州乌山风景区游憩资源的非使用价值进行了货币化评估。结果表明:被调查者的支付意愿率为51.7%;个人年平均支付意愿值为54.62元;2011年乌山风景区游憩资源的非使用价值为2.03亿元,其中存在价值、选择价值和遗产价值分别为9419.2万元、5115.6万元、5765.2万元。     

2.5%咯菌腈悬浮种衣剂防治西兰花根腐病药效研究

[目的]预防西兰花根腐病等土传病害的发生,提高种植经济效益。[方法]进行2．5％咯茵腈悬浮种衣剂不同梯度防治西兰花根腐痛药效试验,以25g/L咯茵腈悬浮种衣剂作为对照。[结果]2．5％咯茵腈悬浮种衣剂拌种对西兰花根腐病有一定的防治效果,其药效随用药剂量的加大而上升,其中2．5％咯菌腈悬浮种衣剂i750mg／kg的防效达60．40％,与对照药剂25g/L咯菌腈Fs3750mg／kg的防效相当,且对西兰花出苗、植株长势等无明显不良影响,安全性较好。[结论]该种表剂可以在生产上加以推广应用。     

56%2甲4氯钠水溶性粉剂除春小麦田一年生阔叶杂草效果及对春小麦安全性试验

56%2甲4氯钠水溶性粉剂是防除春小麦田间杂草的新型除草剂,为明确其田间使用的除草效果及对小麦的安全性,进行了田间药效试验。结果表明,56%2甲4氯钠水溶性粉剂在春小麦田间应用能有效防除多种阔叶杂草,使用剂量以2250~3750g/hm2为宜,在春小麦3~5叶期、双子叶杂草2~8叶期每公顷兑水300kg茎叶喷雾。对供试春小麦高原438号品种安全,使用后增产9.47%~10.24%。     

河北黄骅沿海海洋生物体中重金属残留量及评价

主要研究了河北省黄骅沿海海洋生物体内铅、匐和铬等重金属含量。分析结果表明，贝类体内含量高于钎类及早壳类，但其含量均低于评价标准，铅具有较明显季节变化。单因子评价结果，美质量分的指数均小于１，表明该海域海洋生物受重金属污染水明显。     

图书馆网络安全防护

通过分析图书馆网站接入互联网的方式和网络结构,进一步揭示黑客入侵图书馆网站的方法和途径,提出了针对黑客攻击所需做的日常防护工作,并提供了十种典型流行木马病毒的特征及清除方法,希望能让更多的人了解和认识黑客,做好图书馆日常网络安全防范措施。     

WebPIPA （Web Based Paddy Irrigation Productivity Assessment）： An Online Irrigation Water Supply Management for Tanjung Karang Rice Irrigation Scheme （TAKRIS）

Irrigation water management has significant economic implications in developing countries like Malaysia. As in many countries, Malaysia is also espousing internet as a platform of new possibilities for information access and sharing. Thus web based decision tools are pertinent in managing water, which is becoming a source of conflict between domestic, industry and agricultural use in this emerging technological and information age. Decision Support System （DSS） created in the past was theoretically acceptable but practically not effective in the transfer of scientific knowledge from research labs to the end-users to support them in decision making. The Web Based Paddy Irrigation Productivity Assessment （WebPIPA） is an example of DSS created to provide an effective conduit for the transfer of scientific knowledge from research labs to the end-users to support them in decision making. WebPIPA serves as an innovative, user friendly and efficient management tool for run-of-river rice irrigation system. It is a web based program that requires users to login through user name and password WebPIPA is developed using Net framework and ASP. Net Programming Languages of Microsoft. Net 2003 environment. A 3-tier architecture framework was carefully studied and was implemented to create the WebP1PA model. Mathematical model developed for aiding irrigation decisions must be oriented towards addressing various issues in addition to the scientific ones for better acceptability. All government and private agencies, researchers, station users, farmers, investors and buyers related to this study area will be able to access and share the database through the internet. By strengthening the involvement of government departments, the database can be very effectively used by all stakeholders at the same time narrowing the gap between the urban and rural communities in the development of country.     

籽粒苋田杂草化除技术研究初报

籽粒苋出苗后茎叶处理 ,防除禾本科杂草以 10 .5 %高效盖草能EC 75 0ml/hm2 、5 %精禾草克EC 75 0ml/hm2 、15 %精稳杀得EC 75 0ml/hm2 、5 %精喹禾灵EC 75 0ml/hm2 效果较好 ,防除阔叶草、莎草以 2 5 %灭草松AS 6 0 0 0ml/hm2 为宜。播前用 48%氟乐灵EC 15 0 0ml/hm2 作土壤处理 ,对禾本科杂草的防效达 90 %以上 ,对阔叶杂草的株防效达 70 %。 6 0 %丁草胺EC 15 0 0ml/hm2 、5 0 %乙草胺EC 12 0 0ml/hm2 、5 6 % 2甲 4氯钠D等对籽粒苋有药害 ,不宜使用     

浅谈电子阅览室的建设

本文主要从运行环境、管理和安全问题探讨电子阅览室的建设。     

转基因食品安全性问题的研究现状

近年来转基因食品在世界范围内发展迅速,人们对转基因食品的安全性也日益关注。文章介绍了转基因食品的发展现状、转基因食品安全性研究的内容、评价原则。