The role of school-based research champions in a school–university partnership

The value of teachers’ engagement in and with research is long recognised and it is acknowledged that school–university research partnerships are one way of enabling such engagement. But we know little about how research-based knowledge is negotiated into school practices. Here we draw on data from nine ‘research champions’, who are teachers in schools which are part of the Oxford Education Deanery, a research partnership with a university department. Taking a cultural/historical approach, the study examined the strategic intentions and actions in the activities of the champions as they negotiated research-based knowledge into their schools. Data comprised 59 completed templates that described what they did and why. Findings revealed differences between those with close links with senior leaders—who could take a whole-school approach—and those whose reach was restricted by their position in school practices. Nonetheless, all the champions carefully selected and targeted research in ways that reflected their knowledge of local contexts. The findings point to the need to incorporate the champion role into school systems and for universities to value the role as they develop their own research agenda.     

Pro/ENGINEER常见问题解答

本文主要针对Pro/E学习中常见、易混淆的问题,以问答的形式做了较详细的解答,旨在帮助大家更快地掌握软件的使用。     

K/T界线的研究进展——兼论元素演化与恐龙灭绝的可能关系

本文通过总结近一、二十年来K/T界线的研究进展和恐龙绝灭的相关假说，认为前人在K/T界线和恐龙灭绝的研究方面确实取得了很大的成果，但同时,大多数的研究都是集中在对灾变大环境的求证上。只有少数学者注意到Co、Cr、Ni、Mn、V等这些在界线处变化较大的元素同时也是生物必需微量元素，而另外一些异常元素（如REE、Pb、Sr等）也可能对生物的正常生理机能产生重要影响，这些元素的异常变化很可能与恐龙灭绝存在着一定的关系，但这方面的系统研究还相当缺乏，今后应加强元素的生物机能和与生命活动密切相关的元素在K/T界线附近的演化与恐龙灭绝的关系等方面的研究。     

我国内容产业资源整合及发展趋势

内容产业作为信息社会的一个新亮点在我国开始流行。文章讨论了我国内容产业资源整合的必要性以及存在的困难，提出了对资源的各个方面进行整合的策略，并介绍了当今国外内容产业的发展势态。     

网络环境下的信息组织研究

On the basis of the theory and method of conventional literature organization, this paper expounds the development of the theory and method of information organization under the network environment, and discusses how the method of conventional literature organization suits the network information organization and how to construct new methods of information organization according to the characteristics of network information.     

网络计量学

本文回顾了计量学的产生和发展的历程，指出在网络环境下网络计量学产生的必然性。并着重探讨了网络计量学的主要特征、研究方法、研究对象范围和在网络环境中的应用。     

美国亚太经济战略新动态及动因探析

在美国亚太“再平衡”战略框架下,奥巴马政府逐步完成了对亚太经济战略的部署。在积极参与亚太地区原有的经济合作机制外,美国将跨太平洋伙伴关系等包含高环境与监管标准的贸易协定摆在首要位置,积极构建本国环境贸易发展战略。美国加强对亚太经济战略调整的动因可概括为三方面：守成大国对新兴大国的遏制、拓展美国环境产品与服务的亚太市场、在国际贸易监管竞争中争夺贸易规则制定的主导权,以期实现美国主导亚太地区经济制度的根本目标。     

浙江菝葜属一新种

Smilax austro-zhejiangensis Q. Lin (Liliaceae) is described as new fromZhejiang Province, China.     

三值主从触发器结构分析及其nMOS电路实现

分析了主从触发器的逻辑结构，提出了主从触发器由特征锁存器和通用锁存器构成的设计模式．基于这一模式，用限幅电压开关理论指导设计了ｎＭＯＳ三值Ｄ型、ＪＫＬ型和Ｔ型主从触发器．结果表明，这一设计模式可克服ＪＫＬ型和Ｔ型通过Ｄ型主从触发器转换得到的缺点，并且证明了限幅电压开关理论可在开关级指导触发器设计     

Burrell公式及修正式与广义Egghe公式的比较与评价

英国曼彻斯特大学伯勒尔 (Ｑ .Ｌ .Ｂｕｒｒｅｌｌ)先于埃格黑 (Ｌ .Ｅｇｇｈｅ)用定量解析的形式讨论了美国工程学教授特鲁斯威尔 (Ｒ .Ｗ .Ｔｒｕｅｓｗｅｌｌ)提出的“二八律” ,得到θ =β(αｌｎβ +1) (1)其中 ,　　α =1μｌｎ (1- 1μ)μ为给定的时间内馆藏文献的平均流通次数。公式 (1)的含义为 :β (% )的馆藏满足θ (% )的流通量 ,我们将表 1　Ｂｕｒｒｅｌｌ公式及修正式计算结果与实际统计结果比较1论文数2作者数3作者累积数4论文累积数5β实际统计值 %6θ实际统计值 %7θ 理论值 %8|θ -θ |9γ依表 2取值θ 计算值 %10|θ -…