不同覆盖层次的温、光变化及对几种蔬菜生长的影响

对春季不同覆盖层次下温度、植株干重的测定表明:不同覆盖层次下温度变化由高到低依次为:三层覆盖＞二层+草＞二层覆盖＞一层覆盖;光照强度强弱的变化为一层覆盖＞二层覆盖＞二层+草＞三层覆盖;随着覆盖层次的不断增加,植株高度不断增加,茎粗不断减小;植株干重的变化为在苗生长初期以二层覆盖和二层+草覆盖方式下最大,后期则以一层覆盖的植株干重最大;在叶绿素方面,蔬菜种类不同,其变化呈现各自不同的规律.     

英语教学中培养学生自主学习能力探研

提高学生的自主学习能力,不仅能够激发学生进一步学习和探究英语知识的兴趣,而且能够提高学生的英语学习效率。教师要用问题作为课前引导,激发学生的探究兴趣;组织相关实践活动,引导学生主动参加;采用新颖的教学方式,提高学生自主学习效率。     

Simulation study on radiative imaging of combustion flame in furnace

Radiative imaging of combustion flame in furnace of power plant plays an increasingly important role in combustion diagnosis. This paper presents a new method for calculating the radiative imaging of three-dimensional (3D) combustion flame based on Monte Carlo method and optical lens imaging. Numerical simulation case was used in this study. Radiative images were calculated and images obtained can not only present the energy distribution on the charge-coupled device (CCD) camera target plane but also reflect the energy distribution condition in the simulation furnace. Finally the relationships between volume ele- ments and energy shares were also discussed.     

高职大学生生涯规划的调查与分析

本长沙民政策职业技术为对象对高职大学生的生涯规划状况进行了调查，结果表明，超过半数的高职大学生对生涯规划有所了解，在生涯规划时能从就业网站上获得职业介绍的内容和谋职技巧。但是，也有相当部分的高职大学生，尤其是应用科类的大学生，对本专业的学习不感兴趣，绝大部分学生都急需接受生涯规划指导。     

基于GIS的城市规划方法——以镇江西津渡地区保护与整治为例

以地理信息系统（GIS）技术的5个主要组成部分，即硬件、软件、数据、使用及使用方法为内容，简要介绍了该技术的基本原理及其在城市规划中的应用。着重讨论了在历史遗产保护规划中使用ArcView GIS软件的可行性，并以镇江西津渡历史街区保护规划为例，分析了编制基于GIS技术的规划管理系统时所采用的具体方法。     

Practicing Social Skills Training for Young Children with Low Peer Acceptance: A Cognitive-Social Learning Model

Peer acceptance during early childhood is related to children's academic achievement, adjustment in school, and even psychological well-being in adulthood. Children who experience low peer acceptance exhibit socially inappropriate behavior patterns, which are associated with irrelevant patterns of information processing. Therefore, as a way of helping children with low peer acceptance, a cognitive-social learning model of social skills training has been used because the model focuses on cognitive changes as well as behavioral changes. Three parts of the social skills training—enhancing skill concepts, promoting skill performance, and fostering skill maintenance/generalization—are discussed. In order to be successful, a trainer should understand the training model as well as behavioral patterns of children with low peer acceptance to provide theory-based and individualized feedback to each participant.     

中国土地价格形成分析

土地价格是土地市场形成的关键，也是土地经济学理论研究的重要范畴。分析我国土地价格的形成机制应从土地市场、土地价值、土地立法和农村产业结构等几个方面入手。     

新中国课程政策的历史回顾与理论思考

课程政策的发展变化是通过一系列课程政策载体来体现的，因此，分析新中国课程政策的最直接和显而易见的方式，就是分析课程政策具体而有形的载体－课程计划、课程标准和教科书。在此基础上，从学理的角度揭示出来的课程政策的核心问题主要有：课程权力的集中与分散、课程权力分配的合情与合理和课程权力的分离与共享。提出的新的研究视角是：政治视角、推行的手段视角、成本与收益视角以及文化视解等。它们共同为完善课程政策及其研究奠定了良好的基础。     

论经济全球化下民族文化的融通与发展

民族文化的发展历程伴随与异文化的融汇过程。在经济全球化下 ,中国民族文化与异文化的融通就是建立在社会存在状况趋同基础上的文化之间的竞争、交流与相互扬弃 ;我国民族文化与异文化的融通不仅不会影响其独立的发展 ,反而会带来其新的生机与活力。     

Science Content Courses: Workshop in Food Chemistry for 4th Grade School Teachers

ABSTRACT: A science content course in food chemistry was offered as a 4-day summer workshop from 1999 to 2001 to 4th grade school teachers in the Seattle School District. The objectives of the workshop were to increase the teachers' knowledge of food science, to perform simple experiments that could be used in the 4th grade classroom, and to help the teachers become more familiar with the scientific method. The workshop is described, and challenges associated with running the workshop from the instructors' perspective are discussed. Protocol for hands-on experiments used in the workshop, discussion questions/answers, and comments about each experiment are included in Appendices. The use of hands-on experiments that were easily adaptable to the 4th grade classroom and the comfortable atmosphere for discussion appear to have contributed the most to a successful workshop.