在规范中改革 从改革中创新——教案设计与管理刍议

写教案是备课的中心环节。教案设计是否规范、科学、实用,直接影响着课堂教学的质量。对教案的管理是教学管理的重要组成部分。在规范中改革,从改革中创新,是我校对备课这一教学环节的一贯倡导和要求。笔者现将几年来自己在教案设计与管理中探索的一些认识、方法和体会提出与同行交流切磋。1正确认识教案在课堂教学中的作用教学过程是一种创造性的活动。教案则是体现教师创造性劳动的一种设计方案和主要记录,也是课堂教学所遵循的章法。教学大纲是“一项工程的总设计”,教案则是“工程施工的具体方案”。要完成一份高质量的教案,教师必须认…     

榼藤藤茎醋酸乙酯部位化学成分的研究

目的 对榼藤Entada phaseoloide藤茎醋酸乙酯部位的化学成分进行研究。方法 综合运用硅胶、反相硅胶RP C18、Sephadex LH-20等色谱法进行分离,NMR、MS等波谱学方法进行结构鉴定。结果 从榼藤藤茎甲醇提取物的醋酸乙酯萃取部位中分离得到了11个化合物,通过波谱分析鉴定为表没食子儿茶素没食子酸酯（1）、表儿茶素没食子酸酯（2）、落新妇苷（3）、木犀草素（4）、（?）-表儿茶素（5）、甘草苷（6）、β-香树脂醇（7）和日耳曼醇（8）的混合物、没食子酸（9）、β-谷甾醇（10）、胡萝卜苷（11）。结论 所有化合物均为首次从榼藤中分离得到,其中化合物1～9在榼藤子属植物首次报道。     

从“经水出诸肾”论治人流术后月经过少

《傅青主女科》有云:"经水出诸肾",为临床辨治人流术后月经过少提供了理论依据,且人工流产多为金刃损伤肾精肾气,以致冲任损伤,气血不足,血海空虚,离经之血瘀阻冲任胞宫,阻碍新血生成。中医学多从肾论治,根据其肾虚、血虚、血瘀、肝郁的病因病机辨证论治,以补肾为根本,大致从补肾养血、补肾活血、补肾疏肝等方面论治。     

Lessons from Chernobyl

The Chernobyl disaster on April 26th, 1986, led to the emission of radioactive substances such as iodine-131 and radioactive cesium. As the Soviet Union did not control food distribution and intake, residents were exposed to high levels of internal radiation, leading to the internal radiation exposure of the thyroid gland by iodine-131. As a result, the number of people who had thyroid cancer increased drastically among those who had been under 15 years old at the time of the accident. The age predilection is about to move to 25 or older. However, there has been no scientific evidence of impacts for solid tumor other than thyroid cancer, leukemia, benign diseases, or inheritance including unborn babies. On the other hand, the accident was thought to have caused social unrest and mental damage which had far more impact than that caused by radiation exposure. In this paper, we would like to summarize the impacts on the health of the people in Chernobyl compared to those caused by the accident at the Fukushima Daiichi Nuclear Power Plant.