Assessment of Students’ Understanding of Variation

Several tasks used in research studies are presented with assessment rubrics and examples of the development of student understanding. The tasks focus on students’ appreciation of variation in several contexts and illustrate the need to discuss variation in the classroom and to ask students specifically about it during assessment.     

地形图在考古调查中的应用

大于1：10万的国家基本比例尺地形图，详细地表示了制图区域的地形、水系、土质植被、居民点、交通线等地理要素，这些要素包含了许多与考古有关的信息，通过对古遗址分布、地名起源及演变规律、及其在地形图上的反映特点的分析，可以在室内确定田野考古调查路线，使调查具有针对性．     

Keeping plagiarism at bay—A salutary tale

This editorial examines the question of whether plagiarism may be on the increase in the social sciences and, if so, what needs to be done to keep the problem in check. It was prompted by the discovery of an alert reader in June 2007 that a 1993 paper in Research Policy appeared to have plagiarised a 1980 article in the Journal of Business. The allegation was investigated, and it was agreed by the Editors that the 1993 paper constituted a clear and serious case of plagiarism. However, the author concerned has published over 100 articles and books. Already, two other publications have been judged by the editors of the journals concerned to have plagiarised previous publications. Two more are under investigation, but the great majority of the remainder still remain to be checked. The fact that academic misconduct on this scale has gone unchecked over such a prolonged period raises serious issues about the efficacy of the processes used to police the conduct of researchers. Furthermore, the unexpected discovery that a paper by the author under investigation appears itself to have been plagiarised poses a fundamental question as to whether plagiarism may be far more common than previously assumed. The editorial concludes that a measured degree of vigilance and a greater willingness to pursue any well-founded suspicions of research misconduct are required by editors, referees, publishers and the wider academic community if the scourge of plagiarism is to be kept at bay.     

电视新闻现场报道与记者的口语能力

电视新闻现场报道是一种重要的报道形式 ,因而它越来越多地被记者们所采用。然而目前的许多所谓“现场报道”却并不是真正意义上的“现场报道”。产生这种现象的一个重要原因是记者的口语能力达不到相应的要求。在新闻教育和新闻从业人员中加强口语训练 ,乃是一个亟待解决的问题。     

有关核能计算的几种方法

核能的计算是原子物理的重要内容和高考的热点问题,有关其计算的几种方法,现归纳如下:(1)根据质量亏损计算,步骤如下:     

Studying on the increasing temperature in IT-SOFC： Effect of heat sources

The dimensions and the materials type limit the performance of fuel cell. The increase of the temperature in electrodes and electrolyte of the cell,is due to the over potential of activation (transfer of load),the over potential Ohmic (resistance of polarization),the over potential of reaction (heat released by the chemical reaction) and the over potential of diffusion. In this paper,we studied the thermo-electrical performance of an intermediate temperature solid oxide fuel cell (IT-SOFC) with electrode supported. The aim of this work is to study this increasing temperature of a single cell of an IT-SOFC under the influence of the following parameters: heat sources,functioning temperature and voltages of the cell,geometric configuration and materials type. The equation of energy in one dimension is numerically resolved by using the method of finite volumes. A computing program (FORTRAN) is developed locally for this purpose in order to obtain fields of temperature in every element of the cell.     

语文教学与儿童发展

“发展”是目前语文教学中普遍使用的术语，要正确理解它，既要学习传统教学发展理论，又要学习现代教学发展理论。小学语文教学的发展目标就是发展学生的语言能力、思想、情感及审美能力、思维能力，使他们掌握学习方法，养成良好的学习习惯。     

An Analysis of Peer Feedback Exchanged in Group Supervision

The authors examined the peer feedback exchanged in 2 supervision groups of counselors‐in‐training (CITs). CITs generated 169 statements grouped into 10 clusters representing 5 regions of peer feedback: counselor focus and engagement, insight‐oriented skills, exploratory skills, therapeutic alliance, and intervention activities. Both positive and corrective peer feedback was exchanged on topics ranging from counselor performance skills to case conceptualization.     

强化理论研究 结帝生产硕果

公元2000年,中国社会主义生态经济学的研究走过整20个年头,中国生态经济学会在江西省举办研讨会,以对本学科和有关重大生态经济问题的攻关,隆重庆贺生态经济科学在我国诞辰20周年.     

生态经济建设及其保护是中国实现可持续发展的命脉──中国生态经济学会五届二次年会学术观点述要

中国实现可持续发展的主要命脉何在 ?由中国生态经济学会最近在甘肃省兰州市主办的年会上 ,经参会学者深入研讨得出一致的回答。探索之一 :国际社会对环境与发展政策的宏观取向从 2 0世纪 6 0年代到 90年代的三十多年间 ,世界上的环境与发展政策大致上经历了三个阶段性的重大变革 :第一阶段是基于政府命令与控制的方法 ,主要通过行政手段进行污染防治 ;第二阶段则基于市场的经济激励机制 ,强调企业在废弃物及污染物产生方面的源头控制 ;第三阶段是在进一步完善政府和企业职能的基础上 ,逐步实行信息公开和更高质量的清洁生产 ,其实质是实现…