韩国学术期刊国际化状况研究

从编委、稿源、语言、流通4个方面调查韩国学术期刊的国际化状况,考察NRF、KOFST、KISTI等机构促进学术期刊国际化的一些具体政策措施。研究结果表明:韩国学术期刊总的国际化水准还比较低,但编委国际化、流通国际化方面相对较好,医学期刊国际化水准相对较高;韩国基本形成了一个较为完备的促进学术期刊国际化的支持系统,其期刊国际化资助计划涵盖了期刊的投稿、审稿/编辑、发行、流通等全过程。根据韩国学术期刊国际化进程的经验教训,提出了中国学术期刊国际化路径的建议。     

Recent progress in reactivity study and synthetic application of N-heterocyclic phosphorus hydrides

N-heterocyclic phosphines (NHPs) have recently emerged as a new group of promising catalysts for metal-free reductions, owing to their unique hydridic reactivity. The excellent hydricity of NHPs, which rivals or even exceeds those of many metal-based hydrides, is the result of hyperconjugative interactions between the lone-pair electrons on N atoms and the adjacent σ^*(P–H) orbital. Compared with the conventional protic reactivity of phosphines, this umpolung P–H reactivity leads to hydridic selectivity in NHP-mediated reductions. This reactivity has therefore found many applications in the catalytic reduction of polar unsaturated bonds and in the hydroboration of pyridines. This review summarizes recent progress in studies of the reactivity and synthetic applications of these phosphorus-based hydrides, with the aim of providing practical information to enable exploitation of their synthetically useful chemistry.     

图书馆安防系统数字化应用探讨

文章介绍了数字化安防系统的特征和功能,并对图书馆安防系统数字化的实现条件以及规划设计进行了探讨,以此建立集美大学图书馆有特色的数字化安防系统。     

基于网络论坛的数字参考咨询工作实践

网络的发展和普及改变了参考咨询服务的环境。文章介绍了南京医科大学在利用自建的医林风信论坛进行参考咨询服务的情况。     

任务驱动教学法下的能源与动力工程基础实验实训探索和改革

分析能源与动力工程基础实验实训现状和存在问题,将任务驱动教学法应用于基础实验实训,突出学生为主、融入新兴理念、培养创新意识、细化实训要求、完善考核机制和扎实能力培养.通过基础实验的自学和检测,锻炼学生操作实验、撰写报告和分析结果的能力.设计实验的任务驱动,给学生充分发展的平台,锻炼其自学、实践、表达和团队协作能力,培养...     

论影响信息消费的商品及服务因素——以网络信息商品及其服务为例

本文界定了信息商品及其服务的内涵。围绕信息商品及服务客体因素,从满足信息需求的效用价值论出发,论述了信息商品及其服务的质量、价格、替代品及本身固有的非消耗性与共享性等因素对信息消费的影响。重点阐述了信息内容商品、信息工具商品、信息服务商品的质量因素对信息消费的影响。     

查准率和查全率之间的关系

澄清了学术界对查准率和查全率关系争论中的一些不正确的观点。通过对查准率和查全率的概念分析,得到了定性的结论:查全率依赖于查准率,查准率的提高有利于查全率的提高。通过对两者间关系的数学推导,得到了查准率和查全率之间一般性的定量关系。     

区域性科技文献资源共享服务机制探索——以上海为例

简要介绍区域性科技文献资源共享服务机制的相关理论,系统地论述了上海地区科技文献资源共享服务机制的发展状况并提出了有针对性的改进措施。     

Teachers' perspectives on the challenges of teaching physical education in urban schools: the student emotional filter

The purpose of this study was to analyze how the challenges of urban schools influence physical education teachers' emotional understanding and connections with their students and the implications on their teaching. Sixty-one elementary physical educators from an urban school district in the midwestern U.S. were interviewed multiple times (N = 136) over 3 years using interpretive methodology. Teachers reported five unique challenges that significantly shaped their thinking about students and their careers, along with strategies they used to overcome or manage those challenges. The challenges were: (a) insufficient instructional resources, (b) implementing culturally relevant pedagogy, (c) dealing with community violence, (d) integrating more games in curricula, and (e) teaching in a culture of basketball. Implications centered on the guilt-inducing nature of urban teaching, developing an informed and realistic vision of urban physical education, and the role of teacher preparation and professional development.     

对我校普通班女生蹲踞式跳远教法的实验研究

蹲踞式跳远是大学普通班体育课程的主要教学内客,传统的蹲踞式教学隔断了知识的完整性,不利于提高成绩。改革后的教法能调动学生的主动性。文章运用实验法,通过对两组被测对象的比较分析,指出改革后的教学效果优于传统教学法。 苏州大学,215006