本文以乙酸乙酯的制备为例,对有机化学实验课程中课前–课中–课后三阶段进行课程思政教学设计,在各阶段中潜移默化的融入思政案例,实现专业课程的全程育人。构建了以乙酸乙酯知识为主体,以家国情怀、爱国主义、文化自信、科学精神、专...本文以乙酸乙酯的制备为例,对有机化学实验课程中课前–课中–课后三阶段进行课程思政教学设计,在各阶段中潜移默化的融入思政案例,实现专业课程的全程育人。构建了以乙酸乙酯知识为主体,以家国情怀、爱国主义、文化自信、科学精神、专业素养等为主导的有机化学实验课程思政教学体系。实践教学表明,将思政元素分散到课前–课中–课后三阶段,有利于提高学生实验的设计能力和创新能力,让学生体会到思政理念的实践意义,可达润物无声的育人效果。In this paper, taking the preparation of ethyl acetate as an example, the teaching design of the course ideology for the organic chemistry experimental course was designed as three stages, including as the before class, during the class and after class, and the political cases were subtly integrated in each stage to realize the whole process of professional course education. It has built a political teaching system for organic chemistry experimental courses with the knowledge of ethyl acetate as the main body and the home and country feelings, patriotism, cultural self-confidence, scientific spirit and professional accomplishment as the mainstay. Practical teaching shows that the dispersion of ideological elements into the three stages of the before class, during the class and after class is conducive to improving students’ experimental design ability and innovation ability, so that students could experience the practical significance of the ideological and political concepts, and achieve the effect of silent education.展开更多
本文对云南省大理市某库塘湿地进出口位置、重点区域等11个采样点采集并测定底泥中11项指标(有机质、全氮、全磷、Cu、Zn、Ni、Pb、Cd、Cr、As和Hg)含量,进行底泥重金属污染环境风险评价。把库塘湿地分为不同典型区域,采用主成分分析、...本文对云南省大理市某库塘湿地进出口位置、重点区域等11个采样点采集并测定底泥中11项指标(有机质、全氮、全磷、Cu、Zn、Ni、Pb、Cd、Cr、As和Hg)含量,进行底泥重金属污染环境风险评价。把库塘湿地分为不同典型区域,采用主成分分析、地累积指数法、潜在生态风险指数法等方法分析库塘湿地底泥重金属,结果显示库塘湿地西部底泥重金属的平均含量、主成分分析、地累积指数、潜在生态风险指数均大于中部湿地和东部湿地,湿地生态修复时,应重点治理西部湿地。This article collected and measured the content of 11 indicators (Organic Matter, Total Nitrogen, Total Phosphorus, Cu, Zn, Ni, Pb, Cd, Cr, As, and Hg) in the sediment of 11 sampling points, including the import and export locations and key areas of a reservoir wetland in Dali City, Yunnan Province, for environmental risk assessment of heavy metal pollution in sediment. The pond and reservoir wetland were divided into different typical areas, and methods such as principal component analysis, land accumulation index, and potential ecological risk index were used to analyze the heavy metals in the sediment of the pond and reservoir wetland. The results showed that the average content of heavy metals, principal component analysis, land accumulation index, and potential ecological risk index in the sediment of the western part of the pond and reservoir wetland were higher than those in the central and eastern wetlands. When restoring wetland ecology, the western wetland should be given priority for management.展开更多
文摘本文以乙酸乙酯的制备为例,对有机化学实验课程中课前–课中–课后三阶段进行课程思政教学设计,在各阶段中潜移默化的融入思政案例,实现专业课程的全程育人。构建了以乙酸乙酯知识为主体,以家国情怀、爱国主义、文化自信、科学精神、专业素养等为主导的有机化学实验课程思政教学体系。实践教学表明,将思政元素分散到课前–课中–课后三阶段,有利于提高学生实验的设计能力和创新能力,让学生体会到思政理念的实践意义,可达润物无声的育人效果。In this paper, taking the preparation of ethyl acetate as an example, the teaching design of the course ideology for the organic chemistry experimental course was designed as three stages, including as the before class, during the class and after class, and the political cases were subtly integrated in each stage to realize the whole process of professional course education. It has built a political teaching system for organic chemistry experimental courses with the knowledge of ethyl acetate as the main body and the home and country feelings, patriotism, cultural self-confidence, scientific spirit and professional accomplishment as the mainstay. Practical teaching shows that the dispersion of ideological elements into the three stages of the before class, during the class and after class is conducive to improving students’ experimental design ability and innovation ability, so that students could experience the practical significance of the ideological and political concepts, and achieve the effect of silent education.
文摘本文对云南省大理市某库塘湿地进出口位置、重点区域等11个采样点采集并测定底泥中11项指标(有机质、全氮、全磷、Cu、Zn、Ni、Pb、Cd、Cr、As和Hg)含量,进行底泥重金属污染环境风险评价。把库塘湿地分为不同典型区域,采用主成分分析、地累积指数法、潜在生态风险指数法等方法分析库塘湿地底泥重金属,结果显示库塘湿地西部底泥重金属的平均含量、主成分分析、地累积指数、潜在生态风险指数均大于中部湿地和东部湿地,湿地生态修复时,应重点治理西部湿地。This article collected and measured the content of 11 indicators (Organic Matter, Total Nitrogen, Total Phosphorus, Cu, Zn, Ni, Pb, Cd, Cr, As, and Hg) in the sediment of 11 sampling points, including the import and export locations and key areas of a reservoir wetland in Dali City, Yunnan Province, for environmental risk assessment of heavy metal pollution in sediment. The pond and reservoir wetland were divided into different typical areas, and methods such as principal component analysis, land accumulation index, and potential ecological risk index were used to analyze the heavy metals in the sediment of the pond and reservoir wetland. The results showed that the average content of heavy metals, principal component analysis, land accumulation index, and potential ecological risk index in the sediment of the western part of the pond and reservoir wetland were higher than those in the central and eastern wetlands. When restoring wetland ecology, the western wetland should be given priority for management.
