略论我国民事时效制度的完善

本对现存时效制度的缺陷作了一些分析，并提出了完善时效制度的粗浅看法，以期消除人们对时效制度的误解，从而更好地保护民事主体的民事权利。     

多元函数的极值及其应用

在多元函数极值有关理论的基础上，讨论多元函数求解极值的理论方法，并通过典型例题阐明多元函数极值在实践中的应用。     

偏爱“差生”辩

在全面推进素质教育的过程中,偏爱“差生”是一种全新的教育观念,一、偏爱“差生”能够产生最佳心理效应,符合素质教育的要求;二、偏爱“差生”符合因材施教的原则,是一种更高的教育教学艺术,不会产生负效应;三、人生需要赞美,绝大多数“差生”是可以转变的。     

农民素质对农业经济增长和可持续发展的影响

提高农民的素质是解决农业问题的重要措施之一。目前农民素质的现状对农业经济增长和可持续发展有重要的影响。     

词语变用浅说

本文讨论了词语变用的必然性，表达效果，主要方式，及应注意的问题。     

流动人口对新疆社会经济的积极作用

大量流动人口来到新疆,冲破了地域、民族的界限,扩大了各民族交往的范围和领域,推动了新疆社会经济的发展。流动人口带来了新的信息和技术,改变了新疆本地的传统观念,对新疆民族文化的传播和发展也起到了一定的积极作用。人口流动促进了各地不同民族间的接触交流,改变了人们狭隘的地域观念。通过人口的流动,不同民族间的社会交往增加、经济联系加强,同时也促进了民族间的文化认同和变迁。     

Exploring the Roles of Social Presence and Gender Difference in Online Learning

Online learning has become more popular in higher education with its advantages of flexibility and accessibility. However, there have been challenges to students’ learning experience in online learning. One critical challenge would be providing interactions between students and instructors as good or effective as in the face‐to‐face environment. However, providing face‐to‐face interactions in online learning is not feasible because students and instructors are not physically present together. In this study, we introduce and empirically investigate social presence as student learning experience in online learning in which physical presence does not exist. Drawing upon the social presence and online learning literature, we propose a research model to explore how the interactivity of communication tools can drive social presence and student satisfaction in online learning. Furthermore, this study examines gender difference as a moderator in the model. Data were collected from undergraduate students who were taking online business statistics courses where an interactive communication tool was required to use for class communication and collaboration. The results showed that social presence driven by tool interactivity had a significant impact on student satisfaction in online learning. We also found that gender difference moderated the relationship between tool interactivity and social presence in online learning.     

压电超声马达

本文介绍几种典型的压电超声马达的结构和运行原理,并简要说明国内外研究的进展情况。     

塞曼效应

本文将采用两种方法对正常塞曼效应进行解释,并比较它们的异同。经比较发现两种解释所得结果一致。但经典解释从牛顿力学出发,未能反映原子内部本质;而半经典半量子解释,反映了原子内部本质。     

Self-regulatory climate: A positive attribute of public schools

This study contributes to the development of a positive framework for effective public schools in 2 ways. First, it advances the construct self-regulatory climate as consisting of 3 generative school norms—collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis. The authors argue these norms signal a school climate supportive of student psychological needs. Second, they test the predictive validity of self-regulatory climate by empirically examining its relationship with school performance. Results of structural equation modeling support the theory that collective faculty trust in students, collective student trust in teachers, and student-perceived academic emphasis combine to form a self-regulatory climate that has positive consequences for urban school performance.