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New and innovative information technologies drive the ever-evolving library profession. From clay tablet to parchment scroll to manufactured paper to computer screen pixel, information storage, retrieval, and delivery methods continue to evolve, and each advance irrevocably affects the way libraries, and librarians, work. The Internet has forever altered information and library science, both in theory and practice, but even within this context the progression continues. Though ambiguously defined, Web 2.0 offers a new outlook and new software, presenting librarians with potentially invaluable new tools and methods. This paper discusses the creation, implementation, and maintenance of a Web 2.0 technology, the wiki, as a resource tool for an academic biomedical library. 相似文献
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面对外部环境的迅速改变，结合企业自身的实际情况，西部传统优势企业应该通过法律地位、治理结构、产业战略等层面的转型重塑竞争优势，实现企业“复兴999并最终形成可持续的竞争优势。 相似文献
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Yusuf Sayed 《Compare》1999,29(2):141-152
The policy of educational decentralisation has in recent times become a key aspect of educational restructuring in the international arena. The decentralisation of educational control and decision‐making is also evident in discussions surrounding educational restructuring in South Africa and has been expressed in the call for greater community and parental participation in schooling. This move towards greater devolution and participation in schooling increased in momentum after the elections of 1994 and was sanctioned with the passing of the South African Schools Act (SASA) in November 1996. In an attempt to understand the move towards educational decentralisation, this paper examines the rationale and likely implications behind such a policy in the South African context. The paper argues that educational decentralisation in the South African context may result in greater educational inequities along the lines of class rather than race. The paper cautions against unqualified commitment to educational decentralisation in countries in transition. 相似文献
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壳聚糖对力竭运动小鼠红细胞膜脂质过氧化水平及ATP酶活性的影响 总被引：2，自引：0，他引：2
目的:补充壳聚糖6周,观察力竭游泳后,卜鼠红细胞膜脂质过氧化水平及ATP酶活性的变化,探讨壳聚糖保护红细胞膜、提高机体抗疲劳能力的作用.方法:KM小鼠随机分为安静组、力竭组、药物组.药物组灌服壳聚糖6周后与力竭组进行力竭游泳实验,记录游泳至力竭时间,并测定红细胞膜MDA含量、SOD、GPH-Px、ATP酶的活性.结果:小鼠力竭游泳后红细胞膜MDA含量显著升高,SOD活性显著下降,ATP酶的活性下降;而药物组力竭运动后红细胞膜MDA含量显著低于力竭组,SOD及ATP酶的活性显著高于力竭组,GSH-Px活性与力竭组相比有升高趋势但没有统计学意义;补充壳聚糖可延长小鼠游泳至力竭时间.结论:补充壳聚糖能明显减缓力竭运动导致的红细胞膜脂质过氧化损伤程度,维持红细胞膜ATP酶的活性. 相似文献
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