校本课程“探究性化学实验设计初步”与提升学生创新意识的相关性研究

简要介绍了校本课程"探究性化学实验设计初步"的开发目标、内容及实施过程,研究了开发校本课程与提升学生创新意识的相关性,结合研究结果提出了提升高中化学校本课程开发质量的建议。     

农村中学化学校本课程的开发、实施与管理

主要研究县域整体推进农村中学化学校本课程的开发、实施与管理工作的基本流程与基本模式,并对化学校本课程开发与实施的基本途径与内容进行了探讨。     

校本课程“食品中的化学”开发与实施

以校本课程“食品中的化学”的开发与实施为例,从课程资源选择、课题确立、教学活动的开展和教学效果反馈这4个方面对该校本课程进行介绍。该门课程趣味性强,体现西北特色,能够帮助学生消除对食品中的化学的一些偏见,提升学生科学素养,并增强学生对家乡饮食的了解,可以为同类型校本课程的开发提供借鉴。     

以“我与化学”为基础的校本课程开发

以本校学生"我与化学"实践活动为基础,从课程性质、理念、目标、内容、实施和资源开发与利用等方面开展研究,利用"我与化学"活动的永恒性、开放性、多样性、实用性、综合性和无限生成性等特点,实现了"我与化学"活动校本课程化,力图形成具有实际操作和推广价值的动态开放式校本课程体系.     

“数字化实验”校本课程的开发与实施

以苏州中学校本课程"数字技术中的化学"为例,探讨"数字化实验"校本课程开发过程中教学目标的设定、教学内容的选择、教学实践开展以及教学评价等问题,为同类型校本课程的开发提供借鉴。     

以欧洲PARSEL理念开发化学校本课程的实践研究

“我们身边的化学”是以欧洲PARSEL计划中“重视社会背景下科学问题的探究与决策过程”的理念开发的校本课程。该课程为化学校本课程开发的内容选择提供了新范式,在校本课程开发的实践过程中也发现了一些值得反思的问题。     

重庆市S县初中化学校本课程开发条件的调查研究

对重庆S县初中化学校本课程开发进行了调查。调查结果发现,S县初中化学校本课程开发条件不成熟,表现在：政策条件不成熟;校际缺乏交流、优秀校本课程开发经验难以推广,绝大多数农村初中无法顾及校本课程开发;化学教师开发校本课程态度积极,但知识准备不足,日常教学以旧式知识教学模式进行;校本课程开发存在缺乏专业指导、缺少课程资源、经费、时间和难以达到有效人际合作的问题。本文对S县化学校本课程开发提出了一些建议。     

校本课程“化学传奇:历史中的智慧”开发实施与调研反思

校本课程“化学传奇:历史中的智慧”从前期开发到课堂实施,已逐步成熟.在理论指导、内容设置、目标确定、编写技术、教学程序等方面都取得了一定经验.     

校本选修课程系统化开发的整合路径

通过整合学科资源、教师资源和地方资源,开发并实施与国家课程相协调的系统化、层次化、多样化的校本选修课程,真正发挥校本选修课程的作用。     

高中化学双语教学初探

结合镇江地区和镇江二中的实际探讨了化学双语教学的内容选择、实施措施问题,并对高中化学双语教学课进行了反思,双语教学可作为校本课程来开发研究,比较适用于师生水平处于中上层次的学校。     

利用手持技术改进测定乙醇分子结构实验

利用压强传感器代替排水集气法,改进测定乙醇分子结构实验的仪器装置,并探索最佳反应条件。另外,设计两个空白实验,结合压强变化曲线对实验误差进行相关讨论。     

Neutral diterpenoids of oleoresins of five species of conifers of Transcarpathia

The compositions of the neutral diterpenoids of the oleoresins of five species of conifers growing in the Transcarpathia have been studied. It has been found that the oleoresins ofAbies alba M.,Larix decidua M., andPicea excelsa L. contain more than 50% of neutral diterpenoids. The group and qualitative compositions of the oxygen-containing diterpenoids have been determined. In the oleoresins ofAbies alba,Picea excelsa, andPicea abies tertiary alcohols — cis-abienol and isocembrol — predominate, while inLarix decidua the main component is the hydroxy ester larixyl acetate. Primary alcohols related to the resin acids have been found in all the oleoresins investigated. Features of the distribution of diterpenoids according to the species of conifers have been revealed. The results obtained are necessary for the chemotaxonomy of conifers of the family Pinceae.Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Khimiya Prirodynkh Soedinenii, No. 6, pp. 812–816, November–December, 1988.     

物质分配系数的测定实验改进

实验教学目的是从解决实际问题出发,以实验技术训练和实验设计思想培养为目标。介绍了将单一的物质分配系数测定实验改进为综合实验,提高了实验效果及实验资源利用率。     

光谱仪测试范围的扩展

由于石化行业的生产需要，其材质的使用具有多样性和广泛性，经常会出现顾客委托的测试样品的一个或几个元素跨越光谱仪现有测试程序测量范围的情况。本法通过对光谱仪测试原理的认识，根据光谱仪的测试能力及标样的采集，实现了一个或几个元素测量范围的扩展，并对其测量的影响因素进行了研究。     

Effect of the Method of Modification of Zeolite X on Selectivity of Catalytic Methylation of Toluene

Theoretical and Experimental Chemistry - The effect of the method of modification of catalysts based on zeolite X by cesium and magnesium cations (ion exchange and impregnation) on the selectivity...     

Influence of viscosity of medium on processes of oxygen quenching of excited states of mesoporphyrin

The oxygen quenching rate constants for singlet and triplet excited states of the dimethyl ester of mesoporphyrin IX increase with decreasing viscosity of the medium and reach a maximum at a viscosity of approximately 0.4 mPa·sec, after which the rate constants begin to decrease. The drop in rate constant with increasing fluidity of the medium may be related to a nonequilibrium character of the elementary act in the interaction of the reactants in the solvent cage. In viscous media such as isopropyl alcohol, isobutyl alcohol, and isoamyl alcohol, the reaction radius is greater than the sum of the radii of the reacting particles. The long-range character of these processes is due to the relatively weak dependence of the quenching probability on distance.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 161–167, March–April, 1989.     

Dichroism of absorption and polarization of phosphorescence of molecules of the closed form of nitrobenzospirothiopyran

The spectral-polarization characteristics of absorption and phosphorescence of molecules of the initial form of nitro-substituted indolinospirobenzothiopyran were studied in oriented polyethylene films and in solutions with different polarity. An oscillator model of the electron transitions responsible for the formation of absorption and luminescence spectra was suggested. It was established that the principal differences in the spectral and photophysical properties of the compound studied and its oxygen-containing analog are associated with the fact that the electronegativity of the S atom is lower than that of the O atom. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1143–1146, June, 1997.