高校图书馆知识服务对策研究

知识服务是以满足读者需求为中心,围绕知识增值与创新的专业化、个性化和综合集成的服务。高校图书馆实施知识服务,必须拥有丰富的知识源、优秀的馆员和先进的技术,才能更好地为教学和科研提供高效、优质的服务。     

中文图书在线采选与传统采选模式的比较分析

本文通过对中文图书在线采选模式和传统采选模式的特点比较分析,提出了在线采选存在的问题及解决问题的方法。     

东汉裴岑纪功碑及其拓本

陕西省岐山县博物馆藏有《汉敦煌太守裴岑纪功碑》拓本一件，系民国年间岐山名士孟继圣先生旧藏，建国后捐献于岐山博物馆。拓本装裱成挂轴形式，纸本，蓝绫镶边，纵210厘米，横69厘米。轴端有“汉敦煌太守裴岑纪功碑”隶书题签。拓本为深蓝色。碑文6行，每行10字。文曰：“惟汉永和二年八月，敦煌太守云中裴岑（cén）将郡兵三千人，     

篮球位置技术剖析

篮球位置技术是比基本技术更适合比赛的专门技术，是基本技术的发展、转化、升华和再组合。重视并加强位置技术训练，对加速运动员的成长过程和培养高水平的运动员必将产生深远影响。     

论词汇在语言系统中的地位

本文针对词汇的相关问题进行讨论,并通过循序渐进的方法试图确立词汇在语言系统中的重要地位。     

Chlorogenic acid prevents acetaminophen-induced liver injury: the involvement of CYP450 metabolic enzymes and some antioxidant signals

Chlorogenic acid (CGA), a polyphenolic compound, is abundant in fruits, dietary vegetables, and some medicinal herbs. This study investigated the prevention of CGA against acetaminophen (AP)-induced hepatotoxicity and its engaged mechanisms. CGA reversed the decreased cell viability induced by AP in L-02 cells in vitro. In addition, CGA reduced the AP-induced increased serum levels of alanine/aspartate aminotransferase (ALT/AST) in vivo. The effect of CGA on cytochrome P450 (CYP) enzymatic (CYP2E1, CYP1A2, and CYP3A4) activities showed that CGA caused very little inhibition on CYP2E1 and CYP1A2 enzymatic activities, but not CYP3A4. The measurement of liver malondialdehyde (MDA), reactive oxygen species (ROS), and glutathione (GSH) levels showed that CGA prevented AP-induced liver oxidative stress injury. Further, CGA increased the AP-induced decreased mRNA expression of peroxiredoxin (Prx) 1, 2, 3, 5, 6, epoxide hydrolase (Ephx) 2, and polymerase (RNA) II (DNA directed) polypeptide K (Polr2k), and nuclear factor erythroid-2-related factor 2 (Nrf2). In summary, CGA ameliorates the AP-induced liver injury probably by slightly inhibiting CYP2E1 and CYP1A2 enzymatic properties. In addition, cellular important antioxidant signals such as Prx1, 2, 3, 5, 6, Ephx2, Polr2k, and Nrf2 also contributed to the protection of CGA against AP-induced oxidative stress injury.     

嵌入新生专业导航课的图书馆信息素养教育——以河北工业大学图书馆为例

本文在阐述嵌入新生专业导航课的读者信息素养教育必要性的基础上,总结了嵌入式信息素养教育在授课内容、形式上存在的问题,提出了几点应对嵌入式信息素养教育开展多层次嵌入式服务策略。     

“诗”“歌”中蝴蝶意象研究

蝴蝶是诗词中常见的一种意象,多用来表达自由闲适、爱情新生、美丽感伤等主题。文章探讨古典诗词中的蝴蝶意象,通过对蝴蝶意象的阐释来把握诗人对世界独特的理解,以及特定时代诗歌的某种整体经验。