应用型本科院校大学生创新实践课程教学研究——以五邑大学材料科学与工程专业中《新能源材料与器件专业综合训练》为例

文章以五邑大学材料科学与工程专业中的综合创新实践课程——《新能源材料与器件专业综合训练》为例,探讨了应用型本科院校大学生创新课程的教学实践,通过项目式实践教学,循序渐进地开展不同层次的项目课题研究,课题来源于企业实践、教师科研和学生科技创新等项目。着力培养学生综合利用知识去研究和解决行业中复杂工程问题的能力,培养学生自主学习和终身学习的能力,以及创新和团队合作的能力。     

基于网络教学平台的混合式教学模式建构

教学改革是高等教育改革的难点问题。当前,互联网+背景下慕课与翻转课堂的融合是教学改革的热点,本文构建了混合式教学具体措施:课程典型问题集、典型案例库和立体化教材资源库构建、MOOC或SPOC+线上线下交互活动、SPOC+翻转课堂教学模式和范式,并提出改革意义,对教学改革具有一定的参考价值和指导意义。     

儿童依恋类型的影响因素分析及安全型依恋的培养

本文对影响依恋形成的几个因素进行了分析，这些因素来自父母、家庭以及儿童自身三方面，并且针对这些影响因素我们提出了相应的应对策略，对于培养安全型依恋的儿童具有重要参考价值。     

Effects on cytotoxicity and antibacterial properties of the incorporations of silver nanoparticles into the surface coating of dental alloys

The aim of this study was to research the changes in cytotoxicity and antibacterial properties after silver nanoparticles (AgNPs) were incorporated into the surface coating of dental alloys. AgNPs were attached to cobalt chromium alloys and pure titanium using a hydrothermal method, according to the reaction: AgNO₃+NaBH₄→ Ag+1/2H₂+1/2B₂H₆+NaNO₃. A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay was used to evaluate the cytotoxicity of the alloys when in contact with osteogenic precursor cells (MC3T3-E1) from mice and mesenchymal stem cells (BMSC) from rats. The antibacterial properties of dental alloys incorporating three different concentrations (10, 4, and 2 μmol/L) of AgNPs were tested on Staphylococcus aureus (SA) and Streptococcus mutans (MS). High cytotoxicity values were observed for all dental alloys that contained 0% of AgNPs (the control groups). The incorporation of AgNPs reduced cytotoxicity values. No significant difference was observed for antibacterial performance when comparing dental alloys containing AgNPs to the respective control groups. The results demonstrated that the cobalt chromium alloys and pure titanium all had cytotoxicity to MC3T3-E1 and BMSC and that the incorporation of AgNPs could reduce this cytotoxicity. The concentrations of AgNPs adopted in this study were found to have no antibacterial action against SA or MS.     

The effectiveness of self-regulated learning scaffolds on academic performance in computer-based learning environments: a meta-analysis

This meta-analysis examined research on the effects of self-regulated learning scaffolds on academic performance in computer-based learning environments from 2004 to 2015. A total of 29 articles met inclusion criteria and were included in the final analysis with a total sample size of 2648 students. Moderator analyses were performed using a random effects model that focused on the three main areas of scaffold characteristics (including the mechanism, functions, delivery forms, mode, and number of scaffolds; how to promote self-regulated learning by scaffolds); demographics of the selected studies (including sample groups, sample size, learning domain, research settings, and types of computer-based learning environments); and research methodological features (including research methods, types of research design, types of organization for treatment, and duration of treatment). Findings revealed that self-regulated learning scaffolds in computer-based learning environments generally produced a significantly positive effect on academic performance (ES = 0.438). It is also suggested that both domain-general and domain-specific scaffolds can support the entire process of self-regulated learning since they demonstrated substantial effects on academic performance. Different impacts of various studies and their methodological features are presented and discussed.     

普通高校健美操运动员赛后心理调适方法研究

随着我国各高校竞技健美操训练水平的提高,运动员在比赛中所感受到的赛场心理压力体验势必更加深刻和久远。比赛结果的好坏往往都会对运动员造成一定的心理影响,如果不及时采取措施进行干预,这将会影响运动员赛后正常的训练和比赛。本文尝试分析竞技健美操运动员在赛后可能会出现的心理体验表现,探讨了在赛后的训练中可以采用的几种较实用的心理调适手段。     

基于profiling系统的软硬件划分方法研究

通过对path profiling和loop profiling对软硬件划分作用的分析,发现了在特定条件下pathprofiling相对于loop profiling的优点,并提出了一个新的基于profiling系统的软硬件划分的方法。     

美、中教师评价指标体系比较研究

本文就美中两国最新教师评价体系的一、二级指标进行比较,对两国的相通之处和各自关注的重点予以探讨,并进一步分析美国教师评价指标体系的特点,以期对我国教师评价指标体系的科学构建和完善有所借鉴.     

学校对研究性学习的回应行为分析

本文通过调查发现,学校执行研究性学习课程政策时表现出共同的行为方式,即:在课时上,不能按相关要求开足课程;在实施方式上,利用节假日"集中"进行;在教学过程中,重形式轻实质.学校的这种现实回应使研究性学习课程政策在实践中面临被消解的境地.对此,我们不能简单地将其归咎于学校执行政策不力,而应从整个课程政策的制订、执行和调整系统的角度来考量.     

多媒体技术在中学化学实验教学中的运用

多媒体是教学的辅助手段,尤其是中学化学实验教学的必要辅助手段,教师应该在化学实验教学中恰当运用多媒体教学技术辅助化学教学,使这种现代化教学手段与传统教学互相结合、互相渗透、互相补充和完善,进一步优化化学实验教学,提高教学效果。