The IR Has Two Faces: Positioning Institutional Repositories for Success

This article describes the ongoing efforts at University of Nevada, Las Vegas (UNLV) Libraries to evolve the role of the institutional repository (IR) and to effectively position it within the context of the Libraries’ collections, research support, and scholarly communication services. A major component of this process is re-examining the fundamental aims of the IR and aligning it to the Libraries and the campus strategic goals. The authors situate UNLV Libraries’ experience within the context of the current literature to provide background and reasoning for our decision to pursue two, at times conflicting, aims for the IR: one for scholarly communication and another for research administration.     

Technological research in the EU is less efficient than the world average. EU research policy risks Europeans’ future

We have studied the efficiency of research in the EU by a percentile-based citation approach that analyzes the distribution of country papers among the world papers. Going up in the citation scale, the frequency of papers from efficient countries increases while the frequency from inefficient countries decreases. In the percentile-based approach, this trend, which is uniform at any citation level, is measured by the e_p index that equals the P_{top 1%}/P_{top 10%} ratio. By using the e_p index we demonstrate that EU research on fast-evolving technological topics is less efficient than the world average and that the EU is far from being able to compete with the most advanced countries. The e_p index also shows that the USA is well ahead of the EU in both fast- and slow-evolving technologies, which suggests that the advantage of the USA over the EU in innovation is due to low research efficiency in the EU. In accord with some previous studies, our results show that the European Commission’s ongoing claims about the excellence of EU research are based on a wrong diagnosis. The EU must focus its research policy on the improvement of its inefficient research. Otherwise, the future of Europeans is at risk.     

Wigner函数的性质

在详细地介绍和讨论Wigner函数的性质的基础上,推导出了一维谐振子的基态、第一激发态和第二激发态的wigner函数并作出了它们的图像,且与相应的几率密度函数的图像做了比较。     

萨马兰奇改革传统奥运模式的历史必然性及其哲学思辨

为了揭示萨马兰奇改革传统奥运会模式的历史必然性及剖析其思想底蕴。运用社会结构分型理论、一般系统论、存在进化理论和信仰理论对萨马兰奇变革传统奥运模式的历史必然性进行了思辨。认为：萨马兰奇对奥运传统模式的改革是奥林匹克运动发展中的一场革命。它适应了社会生产力的新变化对奥林匹克运动提出的新要求;它反映了奥运模式是主、客观内在统一的认识论规律,它区别了信仰和主义;它折射了开放性的动态思维的光辉。     

垂直初速度对提高跳远成绩的影响

依据中外优秀跳远选手的比赛数据统计和对比分析,运用运动生物力学原理和方法,论述了垂直初速度对跳远成绩的影响及其意义,揭示了一次成功跳远所应具备的主要技术指标。     

用多组逐步判别分析法对城乡学生体质年龄特征的研究

为研究城乡学生体质状况的差异和年龄对体质水平的影响,采用多组逐步判别分析法,对广东省城乡７—１０岁小学男生、１９—２２岁大学男生的体质测试指标数据进行分析、研究。研究结果表明：城乡学生体质状况差异依然存在,有随着年龄的增长而逐步缩小的趋势;成年以后城乡间、年龄组间差异不明显。     

我国竞技体育科学化发展的趋势

运用理论分析等方法,分析了当前我国竞技体育科学化的社会背景,并认为当前我国竞技体育科学化发展趋势表现在以下方面：决策的科学化和科学决策的制度化,用系统科学规划、指导训练和比赛,训练理论和训练观念的创新,科学选材和科学育材的同步化;高科技手段和新器材的广泛应用;教练员的智能化和运动员的知识化。旨为促进我国竟技体育的科学化进程和深化竟技体育的改革提供参考依据     

随机变量是正态变量的一个充分条件

正态变量有两个重要性质,第一是线性变换不变性,第二是不相关性和独立性之间的等价性。文章给出:在一定条件下,满足上述两个性质的随机变量是正态变量。     

两个代数不等式的简证及推广

本文通过例子对[1]中不等式猜想给出了肯定的回答。找到了这个不等式成立的另一个充分条件,并给出了它的一个新的推广．