高师化学师范生化学实验教学技能体系的构建

实验教学是中学化学教学的重要组成部分,实验教学技能则是高师化学师范生必备的教育技能.我国新一轮化学课程改革强调培养学生科学探究的意识与能力,这就对教师的实验教学能力提出了更高的要求,因此,建立系统、完善、科学的实验技能体系对于高师化学师范生全面、系统的掌握化学实验教学技能、规范化学实验教学具有重要作用.     

浅谈化学实验教学

化学实验是我们认识化学物质、弄清它们性质的有力手段。初中化学是学生学习化学的启蒙阶段,所以注重化学实验教学是至关重要的。本文主要当前初中化学实验教学的反思;今后初中化学实验教学的展望这两个方面来阐述的。     

关于中职化学实验教学的几点思考

实验教学是化学学习中的一个重要组成部分,对于中职化学这一门对实验有很强依赖性的学科,许多中职院校在化学实验教学过程中遇到了不少的问题,本文根据实验课的内容,需要掌握什么知识、达到什么目的等在实验教学过程中进行深入的剖析,并且提出了几点思考.     

化学实验教学加强学生创新能力的培养

化学实验教学要把培养学生的创新能力和创新精神,把这种精神贯穿于化学实验教学,就能使新课程下的化学实验教学更好地满足学生创新思维发展的需求.     

浅谈化学实验教学中电教手段的运用

在化学实验教学中,通过电教手段构建娱乐情景,再现实验现象,增强实验效果和增大实验教学量,激发学生学习兴趣、提高复习效率等,促进化学实验教学的高效发展.     

工科化学教学体系改革

针对江西理工大学工科化学基础理论课程教学体系、实验教学体系以及实践教学体系进行了探讨,提出了理论教学指导实验教学,实验教学辅助理论教学,科学研究与实验教学相结合的教学模式。开发出新的实践教学体系,强调师资队伍建设的重要性,从而培养现代化建设的应用型人才。     

化学实验与高中生学习兴趣培养

化学实验教学在化学教学中最有魅力,对激发学生兴趣有着极其重要的作用.在实验教学中如何将教学过程设计成为一个愉快学习的过程,使学生通过观察绚丽多彩的化学现象,积极探究化学奥秘,是我们化学教师应该研究的问题.     

冶金工程专业基础化学实验教学体系构建与教学内容

针对冶金工程专业基础化学实验教学中存在的问题,结合冶金工程专业特点,提出基础化学实验教学改革思路,构建"基础—综合—创新"三个模块的基础化学实验教学体系,整合优化实验项目,设置与冶金工程专业方向紧密结合的基础化学实验,充分体现化学实验技术在冶金工程专业中的具体应用。通过实践,证明该改革取得了较好的效果。     

化学实验教学的改革与推进

中学化学大纲指出,化学教学的目的首要是学习化学基础知识和化学实验、化学计算的基本技能。化学是一门以实验为基础的基础自然科学。可见,实验教学是化学教学的重要成分,跟化学教学的整体质量有举足轻重的关联。     

目标管理在高校化学实验教学资源管理中的应用

为了克服当前高校化学实验教学资源管理模式中存在的不足,提升化学实验教学资源的管理水平,在实验技术人员定量化管理的基础上,引入了目标管理方法.从目标管理的总体思路、多层次目标体系的建立、目标实施过程中的进程控制、衡量实际绩效及实施目标管理的意义等多方面介绍目标管理的应用.     

Chemical peels

A chemical peel is a procedure in which a topically applied wounding agent creates smooth, rejuvenated skin by way of an organized repair process. This article describes the indications, classifications, operative procedure, and complications of chemical resurfacing. In addition, alternatives to chemoexfoliation are discussed.     

绿色化工技术在精细化工中的应用研究

社会经济快速发展,科学技术不断进步,针对我国现代工业化工行业发展,所产生的新型化工技术应用,促进我国化工生产效率的提升。工业的发展不可避免地会带来污染物的产生,如果不能有效控制化工排放污染物,温室效应问题会更加严重。本文对绿色化工技术在精细化工中的有效应用进行研究,降低工业废气污染物排放量,维护生态环境平衡。     

Chemical lumbar sympathectomy

The technique of injection and the results of a series of 124 chemical lumbar sympathectomies, performed on 97 patients, are described. Sixty-eight patients, over 60 years of age, had their sympathectomy because of peripheral arteriosclerotic disease. Fifty-two of these patients benefited in terms of pain relief and only one required amputation. Sixteen patients, under 60 years of age, had their sympathectomy because of peripheral arteriosclerotic disease. Ten of these patients benefited but it is recommended that, where possible, other methods of treatment should be used in this younger age group. Thirteen patients, mostly elderly, had their sympathectomy because of diabetic ischaemic disease. Six only of these patients benefited, but it is felt that chemical sympathectomy can be recommended as a way of helping some of these patients who would otherwise have amputation.     

Chemical theories.

The chemical theories of the visual process advanced by Wald, Dartnall, and others are compared. Their adequacy for scotopic vision is substantial, while incomplete. Almost no theory successfully explains photopic vision. Evidence that rhodopsin is a light-sensitive enzyme is discussed, and it is conjectured that present extraction techniques do not permit comparison of in situ and in vitro data, particularly in the photopic case. (42 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Chemical protein synthesis

Chemical protein synthesis is a field in transition. Previously, the synthetic accomplishment itself was the major focus of work in this field. Increasingly, chemical synthesis is now being applied to understanding how biological function originates in the structure of the protein molecule. A novel approach--'chemical ligation', which is the chemoselective reaction of unprotected peptide segments in water at pH7--has made the total synthesis of proteins a robust and practical route to the study of structure-function relationships. For certain protein families, chemical protein synthesis is the most effective way to obtain functional proteins direct from genome sequence data.     

Chemical studies on actinoxanthin

The antitumor protein actinoxanthin exhibits high inhibitory activity against a number of gram-positive bacteria and some strains of transplantable leucoses and related tumors. Actinoxanthin was shown to consist of a single polypeptide chain crosslinked by two disulfide bonds and to contain 107 amino acid residues. Reduced and alkylated actinoxanthin was digested with chymotrypsin, thermolysin and trypsin. Based on the sequence analysis of fragments so obtained the complete amino acid sequence and the location of disulfide bonds of actinoxanthin has been proposed. The high degree homology of some regions of actinoxanthin and the antitumor protein neocarzinostatin have been revealed.