城市绿化调查中的遥感与制图研究——以广州市绿化调查为例

采用航摄正射影像及红外彩色影像判读与制图方法,提高绿化调查的质量和速度:并在微机上建立数据库。在地图信息系统中实现自动制图,供城市绿化规划、管理及决策所用。     

基于LUCC的内蒙古人地关系地域系统调控模式初探

内蒙古地区由于其自然生态环境的脆弱性以及人类长期以来不合理的土地利用，目前毁林开荒和开垦草原、土地沙漠化、草原退化等土地利用／覆盖变化（LUCC）过程极其严峻，应该尽快建立和完善土地利用／覆盖变化动态监测体系、资源与环境法律体系、土地利用可持续管理体系和退化土地生态重建工程体系，实施基于可持续发展理念的人地关系地域系统调控模式。     

The impact of peer collaboration on teachers’ practical knowledge

Due to changes in Dutch mathematics education, teachers are expected to use new teaching methods such as enquiry-based teaching. In this study, we investigate how teachers design, implement and evaluate new methods for statistics teaching for 7^th-graders during a professional development trajectory based on peer collaboration. We monitored teachers’ development in a network of four mathematics teachers from the same school. By using a mixed-methods approach in which we combined data from interviews, concept maps and classroom observations, we describe changes in teachers’ practical knowledge. We found how the nature of these changes highly depends on teachers’ personal concerns that emerge during the trajectory. Some teachers considered their concerns as challenges stimulating their learning, while other teachers experienced their concerns as a reason to fall back to previous teaching methods. Based on our results, we give some recommendations for organising teacher networks.     

地理认知中的思维媒介

地理研究对象的特点决定了其认知需要视觉思维的操作,要以心理意象作为思维的基础,地理认知应该是以意象为表征基础的思维过程。受传统的以语言为思维媒介观念的影响,地理认知仍然强调语言的表达方式,因此必须改变思考问题的策略,考虑意象这一思维媒介在地理认知中的价值和作用,结合文献材料想象和构建适当的、有着清晰结构的心理图式或模型,并作透视或观察。     

"变迁"、"覆盖"理念对我国音乐教育的启示

《1993年太平洋音乐人类学会议之一:巴布亚新几内亚的音乐习得》五篇论文的中心理念是音乐人类学中有关文化与音乐的"变迁"与"覆盖"的问题,结合我国音乐教育的历史与现状,总结和反思所存在的问题,提出了建构"世界多元文化音乐教育"的意见。     

覆盖粗糙集模型的增值算子及其性质

引进覆盖粗糙集模型的一对增值算子,并讨论它们的有关性质,即通过引理2和引理3,给出并证明了定理4.     

关于伪序列覆盖s-π映像的一个推广

建立了度量空间的伪序列覆盖π的（P）映像的内在特征,即证明了X是度量空间的伪序列覆盖π的（P）映射下的像当且仅当X具有性质（P）的CS^＊覆盖的点星网．     

新课程理念下一种可能的评价方法——物理概念图

本文介绍了物理概念图的基本结构及其理论来源,着重从评价方法及结构方面探讨了物理概念图的应用,并指出了其在应用中有待探讨的问题。     

Special relativity, causality and quantum mechanics — 2

We discuss the aspects of non-locality and nonseparability of states of composite quantum systems. The probabilistic nature of quantum mechanical predictions, and the impossibility of cloning, are shown to safeguard causality in the quantum world. An example of a game which can be won exploiting quantum entanglement, but which can never be won classically, is described.