对小波图像去噪方法的探讨

小波图像去噪方法已广泛应用于图像去噪领域．在对日前小波图像去噪文献进行综合的基础上，描述了信号奇异性，并阐述了三种基于小波阈值去噪的方法，最后对小波去噪方法进行了一些展望．     

The impact of standards-based assessment on knowledge for history education in New Zealand

This paper examines how a standards-based form of assessment in operation in New Zealand has impacted upon the knowledge taught to secondary history students. The segmentation of history into assessable components along with assessment mechanisms which encourage the reduction in the number of standards being attempted has impacted upon both the breadth and range of historical content in history programmes. The reduction in knowledge is problematic as it diminishes learners’ opportunities to draw connections between inter-related historical concepts from a wider knowledge base. Social realists have raised concerns about the reduced focus on knowledge in education and its effects in restricting students’ development of conceptual knowledge which enables higher order, more abstract thinking. Experiences of standards-based assessment for history in New Zealand are indicative of this reductive phenomenon. In a culture of accountability, standards-based assessment, as enacted in New Zealand, may impede delivery of critical knowledge.     

正交表L16(43)的不同结构

按照文[2]的定义和方法，区分了正交表L16(4^3)的所有不同的结构，并用极大最小距离给出了不同结构的差别，并且找到了同一结构中正交表的关系．     

寓素质教育于计算机基础课程教学中

本文结合教学实际 ,探索在计算机课程教学中如何加强素质教育的问题 ,提出一些加强素质教育的新思路 .     

教师个人教学效能感与成就目标及学生学习归因关系的研究

通过对192名中学教师的个人教学效能感与成就目标取向以及学生学习归因关系的研究，结果表明：教师个人教学效能感与成就目标取向存在显著相关；与学生学习的外部归因，如学生努力、环境影响有显著相关。其中16年以上教龄教师个人效能感与学生学习的努力、能力、环境影响、教师作用各内外归因都显著相关。     

Outside school time: an examination of science achievement and non-cognitive characteristics of 15-year olds in several countries

Elementary and secondary students spend more hours outside of class than in formal school and thus have more time for interaction with everyday science. However, evidence from a large international survey, Program of International Student Assessment (PISA) (OECD 2012), found a negative relationship between number of hours attending after-school science and science assessment scores in many countries, raising questions about why. The secondary analysis of the 2006, 2009, and 2012 PISA surveys found that in most Western countries the longer students attended after-school science programs (in a typical week), the lower their PISA standardized science test score, but the higher their positive attitudes toward future science careers, interest in science, and self-confidence in science. Several potential hypotheses for this relationship are examined and rejected. Further analysis of a causal relationship between frequent attendance in after-school programs and student achievement and attitudes should clearly identify the content of the program so that the analysis could distinguish experiences closely related to regular school curricula from the informal science activities that are not. A new analysis also should include carefully designed longitudinal surveys to test the effectiveness of informal experiences on later life choices in career and study.     

毛泽东与"双百方针"--纪念毛泽东同志诞辰110周年

毛泽东提出的“百花齐放,百家争鸣”方针,是促进我国的社会主义文化繁荣的方针,是他对传统文艺思想的传承与创新。今天,在新的历史时期,我们要认真总结历史教训,坚定不移地贯彻“双百方针”,促进社会主义文化的繁荣。     

Different Disciplines Require Different Motivations for Student Success

This article reports an investigation of undergraduate motivation to learn. A Likert-type rating scale measure of motivation incorporated the general motivational dimensions identified by previous investigators, as well as a systematic theoretical framework that is more novel, and attempts to acknowledge the role of discipline-specific factors in motivation to learn. The motivation questionnaire was evaluated by measuring its success in explaining the academic achievement of biology, history, computing, planning, anthropology, geology, food science and nutrition, and education students (n = 380) in standard university assessments. The findings reveal that student performance is better explained by within- than across-discipline indexes of motivation, probably because some types of motivation lead to success in some disciplines but failure in others. Furthermore, items based on the theoretical framework developed to underpin the questionnaire (which distinguishes outcome from process incentives) were also found to explain more variation in student performance than general motivation items. Some practical implications of the findings are considered.     

促进思维联想 培养思维品质

从数学课堂教学角度阐述通过强化双基能力，加强对观察能力和思考能力的培养，渗透数学思维方法，采取灵活多样的教学手段来促进学生积极思维联想，培养学生良好的思维品质．     

试论社会转型期的性别平等问题

文章在阐释性别平等内涵的基础上,分析了我国社会转型期性别不平等问题凸显的表现及成因,并提出了遏制性别关系逆转,推进性别平等进程的具体对策。