Future trajectories of agricultural productivity need to incorporate environmental targets, including the reduction of pesticides use. Landscape features supporting natural pest control (LF-NPC) offer a nature-based solution that can serve as a partial s
Third, an IV-based three-step mediation effect model is adopted to investigate the underlying channels through which NRD affects GD, which have been comprehensively explored from the perspectives of technology innovation, institutional quality, population density, and human capital. Lastly, a novelty ...
the development of social and economy,the environmental pollution has become one of the most serious problems in China.Cultivating high level talents in this field can be an effective way to improve environmental quality.Therefore,it is an urgent issue that improves the educational system and ...
光滑连接平坦函数C∞(R)函数The purpose of the paper is to study smooth connection of two horizontal rays.A C∞ (R) function is given to solve the connection.%本文讨论了两条水平射线的光滑连接,用C∞(R)函数实现连接问题.石冶郝首都师范大学初等教育学院...
累积Logistic回归模型影响因素本文通过对"高校学生幸福感现状问卷调查"所获数据的Pearson相关性分析,在探讨各单因素对高校学生幸福感影响的基础上,建立了综合因素下高校学生幸福感影响因素的累积Logistic回归分析模型,并从影响高校学生幸福感的个人,家庭,学校三类主要因素入手,就如何提升高校学生幸福感给...
教学模式信息化时代地图学作为地理学,测绘学,遥感及地理信息科学等众多学科的专业必修课程,在信息化时代下其教学内容和教学模式面临着前所未有的机遇和挑战.本文从当前地图学教学内容和教学模式中存在的不足出发,探讨了信息化时代下地图学教学内容与教学模式应做出的调整和更新,即在教学内容上应注重地图理论的系统化,...
本文利用ISM分析法对高中有机化合物体系进行了研究,构建了高中有机化学"先行组织者"体系的结构,不仅有利于教学有条不紊地进行,还能促进学生高度精致有效知识结构的生成.%The ISM is a structural modeling technique, which is a short form for Interpretative Structural Modeling. Its main function is...
认识实习是化学工程与工艺专业本科生培养的一个必要环节.通过多年来校内外单位协作和调研学习,特别是通过到石油化工厂,污水处理厂等企业认识实习,以及校内计算机仿真训练,加深学生对课程的理解深度,不断提高认识实习工作的质量,并从实习前的动员教育,实习中的督导检查考核,实习后的心得体会以及实习考核评分等几个方面,...
研究现状展望HPM主要研究数学史与数学教育之间的关系,是数学教育研究的重要组成部分. 本文主要通过对HPM研究的相关文献进行分析,指出未来HPM研究有两个需要关注的方向:'HPM研究'的方法论研究,HPM与PME结合的研究.%HPM mainly studies the relationship between mathematics history and mathematics education, which is an...
people's attention.Both the past syllabus and the new curriculum standard put the classification and integration as an important mathematical thinking method.This paper summarizes the basic steps in the classification of middle school mathematics and the basic steps of problem solving.In the teaching ...