谈《中国期刊全文数据库》的教学设计

作者根据多年的教学经验,采用“问题解决”的教学方法,设计由浅到深的“问题串”,引导学生掌握《中国期刊全文数据库》的检索方法,并能根据课题的不同需要,结合《中国期刊全文数据库》的特点,制定良好的检索策略,掌握《中国期刊全文数据库》的检索技巧。

在因特网中如何查找医学文献资源的探讨

目的:探索利用因特网(Internet)进行医学文献检索的策略。方法:比较医学研究中常用的搜索引擎和文献检索数据库等检索工具的应用技巧,归纳出各种检索工具应用的异同点并以实例演示来说明。结果:谷歌搜索的数据索引上超过百度,但在查准率上明显低于百度;国内几个期刊全文数据库检索能力相当,但中国期刊全文专题数据库功能更丰富;PubMed和Highwire单凭固定的主题词一次检索,尚不能满足检索需要,应充分地使用“相关文献”功能,或者根据研究目的变换检索词,来弥补查全率低的不足;同时,增加检索词,缩小检索范围,提高查准率。结论:在因特网中查找医学文献资源不仅需要熟练掌握检索工具的应用技巧,更需要在实践中总结经验。

PubMed检索方法与技巧

目前，PubMed已经成为国内医药卫生工作者使用的主要外文文献检索数据库。本文对PubMed的结构及检索方法与技巧作了介绍，旨在帮助读者更好地加以利用。

Relationship between tea dust exposure and lung function: a systemic literature review

Background:During the production of tea,tea dust has been viewed as a risk factor that may cause the suffering of changes of lung function and respiratory symptoms.Objective:To review whether the occupational exposure to tea dust may lead to the changes of lung function and respiratory symptoms.Methods:We searched the literatures in March 2012 in the databases of Medline,EMBase,Web of Science,Wan-Fang Database and CNKI.The search condition is"(herb OR tea)AND(lung function OR ventilatory function OR pulmonary function OR spirometric measurement)".The paper should be pubished in Enghish or Chinese,with internal or external controls.Results:Totally 17 papers were included.Both acute and chronic changes of lung function were referred.In addition,the respiratory symptoms such as cough,tightness and etc.were also reported and discussed.Conclusion:We concluded that the exposure of tea dust may lead to the changes of lung function and respiratory symptoms.