学科中心课程:内涵、理论假设及组织方式

学科中心课程以有组织的学科内容为材料依据,按照学科结构来确定所要学习的内容,注重学科知识体系的完整性。它的形成建立在这样一个假设上:人们通过学习各门学科知识,就能形成关于世界的整体知识。从古至今长期的演变过程中,它存在三种最基本的组织形式,即科目设计、学术性学科设计、综合性学科设计。在新课程背景下,既要消除对学科中心课程的一些误解,又要正视其局限性,对学科中心课程进行改造和完善,不断提升其品质。     

离子液体-石墨烯修饰碳纤维微电极电化学性能研究

本实验制备了离子液体-石墨烯修饰碳纤维微电极,采用循环伏安法和差分脉冲伏安法测定多巴胺(DA)在该修饰电极上的电化学行为。实验结果显示,修饰后电极的稳定性和重现性明显增加,DA在修饰电极上的氧化过程受扩散控制。在5×10-7-1×10-4mol/L浓度范围内,DA在修饰电极上的氧化峰电流与其浓度呈现良好的线性关系。     

科技期刊编辑要把“学习上的缺点”当缺点

从社会、单位、个人3个层次阐述科技期刊编辑要把“学习上的缺点”当缺点的重要意义,从主观、客观2个角度剖析出现不把“学习上的缺点”当缺点这一问题的原因,从激发崇尚学习的内动力、提高重新学习的创新力、增强落实学习制度的执行力3个方面探讨解决该问题的对策,从而提高科技期刊编辑的综合素质.     

Structural design of a double-layered porous hydrogel for effective mass transport

Mass transport in porous materials is universal in nature, and its worth attracts great attention in many engineering applications. Plant leaves, which work as natural hydraulic pumps for water uptake, have evolved to have the morphological structure for fast water transport to compensate large water loss by leaf transpiration. In this study, we tried to deduce the advantageous structural features of plant leaves for practical applications. Inspired by the tissue organization of the hydraulic pathways in plant leaves, analogous double-layered porous models were fabricated using agarose hydrogel. Solute transport through the hydrogel models with different thickness ratios of the two layers was experimentally observed. In addition, numerical simulation and theoretical analysis were carried out with varying porosity and thickness ratio to investigate the effect of structural factors on mass transport ability. A simple parametric study was also conducted to examine unveiled relations between structural factors. As a result, the porosity and thickness ratio of the two layers are found to govern the mass transport ability in double-layered porous materials. The hydrogel models with widely dispersed pores at a fixed porosity, i.e., close to a homogeneously porous structure, are mostly turned out to exhibit fast mass transport. The present results would provide a new framework for fundamental design of various porous structures for effective mass transport.     

教育公平:教育政策合法性的价值前提

在政治哲学里,公平常常被拿来作为合法性论证的重要前提和决定性因素。教育公平是关涉教育政策合法性论证的价值前提,它决定了教育政策合法性的表现形式和主要内容,规范和引导着教育政策合法性的确立。同时,教育公平引导下的公民广泛参与是提升教育政策合法性的主要实践路径。     

高职院校学生人文素养培养途径的研究

文章阐述了高职院校人文素养教育的内涵,分析了高职院校人文素养教育的现状及成因,力求探索高职院校人文素养教育实现的策略,提出了高职院校学生人文素养的培养途径。     

基于开放式教育背景下高职英语教师角色的探析

在开放式教学过程中,教师不单单只是学生的人生导师、知识的传授者、社会服务者和研究者,在一定制度和环境支持下还应该是校内外课堂的"导演"和"编剧",高职英语教学需要借鉴西方先进的教学方法和教学理念,在宏观和微观两个方面找准自己的角色,进一步深化英语教学改革,创新教学内容和教学方法,努力适应现代高职教育发展需要。     

Public and private value in citizen participation in E-governance: Evidence from a government-sponsored green commuting platform

Citizen participation in E-governance is, essentially, a social exchange between individuals and their government through which the citizen creates public value as well as acquires private value. The direct effects of participation antecedents on participation outcomes have been fully examined, but few researchers have investigated the internal mechanism of citizen participation at the level of psychological value perception. The roles of perceived public and private value between the participation antecedents and outcomes remain unclear. Private value merits careful research in particular as the E-governance environment is being shaped by increasing privatization and continuous IT innovation. Based on the cognitive integration theory and the civic voluntarism model, this paper proposes a theoretical framework to examine the mediating roles of two values. We built a complete research model encompassing ten hypotheses centered on citizen e-participation in the context of green commuting governance. By analyzing survey data on a green commuting platform, we demonstrate the significant mediating effects of these two values and greater effect of private value acquisition on continuous e-participation intentions than public value creation. Our results have important research implications in regards to the roles of perceived values in participation, especially perceived private value.     

上市公司规模与业绩关系的实证分析——来自安徽省上市公司的数据

本文选取2005到2007年安徽省46家上市公司为研究对象,对安徽省上市公司规模与业绩间的关系进行了实证研究。用总资产来解释企业规模;用主营业务收入、主营业务利润、其他业务利润、利润总额、净利润来解释公司业绩。通过简单线性回归分析、对数回归模型、因子分析发现,利润总额、主营业务收入等与规模有显著的相关性,公司规模反过来对业绩也有显著的影响,说明安徽省上市公司资产规模与公司的业绩存在着相互影响的关系。     

高校教材选用面临问题及对策研究

教材是知识的载体,是课堂教学的重要工具。优质教材的选用是高校实现人才培养根本任务、提高教学质量和培养学生创新能力的基础,科学选用优质教材势在必行。就高校教材选用中存在的问题进行了深入剖析,提出了解决当前问题、不断提高教材选用质量的对策,以期创新教材选用思路,提高高等教育的教学质量。