数字图书馆门户的构建与服务

针对当前数字图书馆建设中亟需整合海量资源和数字化服务,以便为用户提供更为准确、方便、快捷的学术信息服务的需求,概括国外数字图书馆门户的建设情况,论述了数字图书馆服务及其门户的定义、定位、功能要素、内容结构、特点、设计原则及其服务运行等内容,并结合北京大学数字图书馆的建设案例进行了分析,为这方面的发展提供了参考。     

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。     

CALIS虚拟咨询知识库元数据规范的设计应用*

首先讨论CALIS分布式合作虚拟参考咨询服务系统的知识库元数据规范，介绍元数据著录单位，著录对象以及它们之间关系等有关元数据标准确立的基本性问题，然后介绍知识库元数据标准的结构、内容与应用，最后给出知识库元数据相关的问题。     

普通高校篮球选项课教学改革实验研究

传统篮球教学模式已经不能适应现代教学形势发展的需要.通过实验提出突出组合练习的速成教学法来提高教学效果,验证了速成教学法比传统教学法有较大的优越性,可使学生在有限的教学时数内掌握篮球技术,为终身体育打下良好基础.     

论影视艺术

影视艺术是科技发展的艺术成果,闪耀着科技美的光芒。但电影艺术是影院艺术,电视艺术是家庭艺术,虽有共性,更有独特个性。电影艺术的门类正在逐步减少,而电视艺术门类却在不断壮大。     

没落与重构——略论80年代后期中国小说

80年代后期中国小说没落的原因有二 :其一是时代的发展使大众认识逐步普及深化 ,其二是什么是小说的认识还需要一个过程。但是这种没落是一个转折和一个文学艺术自觉期的苏醒与启蒙。其重构形态表现在 :不再把文学当作提出问题解决问题的工具 ,题材不再具有明显的周期性和蜂拥性 ,重视艺术直觉 ,艺术对象选择的宽泛 ,重视艺术感受和艺术发现     

Comparison of bibliographic databases for information on the rehabilitation of people with severe mental illness

OBJECTIVE: The research sought to examine the overlap in coverage between several health-related databases, thus enabling the identification of the most important sources for searching for information on the rehabilitation of people with severe mental illness. METHODS: The literature was searched within a systematic review. Several health-related databases were retrieved (Cumulative Index to Nursing and Allied Health Literature, The Cochrane Library, MEDLINE, PsycLIT, Sociofile, and Social Science Citation Index), noting their source and comparing results retrieved from each database. FINDINGS: The total number of studies retrieved from each database varied. Almost a third of the papers retrieved from each database were unique to that source. Forty-two percent of the papers were only found in one database. Restricting a search to one database alone would miss many papers and could affect the results of a systematic review. PsycLIT was the most useful database for this topic area, containing 44% of the papers. MEDLINE, the database of first choice for many health professionals, held only 29%. CONCLUSIONS: No database was determined to be significantly more useful than any other--each warranted inclusion in the study. Reliance cannot be placed on one database alone, and other methods such as hand searching should also be used. Although this may not be new information for information professionals, it is likely to be new for health professionals and researchers who are increasingly performing their own literature searches. Information professionals have an important role to play in conveying this message to those outside their profession.     

任意球的防守

随着现代足球的发展 ,定位球在比赛中的作用越来越重要。比赛的胜负常常由定位球决定。在比赛中 ,任意球、界外球的破门得分率高。有研究认为 ,比赛中约 4 0 %的进球是任意球攻入的。因此 ,对任意球的防守 ,应引起足够的重视。