Torsional effect of space structure in frequent earthquakes

Taking a concrete frame supporting space structure as the research object, we systematically studied its lateral-torsion coupling effect of reverse problems in consistent earthquake excitation. Firstly, based on its reverse forms and features, we put forward a mechanical analysis model (flexibility layer model) and a calculation method using the response spectrum method and the weighted average method, and verified their validity and feasibility using case analysis. The result shows that the translation displacement change trend of the space structure is basically the same whether reverse exists in the supporting structure or not, but the supporting structure torsion has an effect on the displacement with a relative increase of 10?.     

Examining features of how professional development and enactment of educative curricula influences elementary science teacher learning

This research examines factors influencing elementary science teacher learning as they participate in professional development with and enactment of educative curricula in comparison with learning following limited professional development and enactment of traditional curricula. Using a randomized cluster design (125 teachers and 2,694 students in 4th—5th grades) that met the What Works Clearinghouse standards without reservations, teacher learning was conceptualized using four outcomes. Data were analyzed using standard single-level multiple regression models and possible mediation models for the teacher outcomes were considered using piecewise multiple regression and path analytic approaches. Treatment group teachers experienced greater increases in content knowledge, views of science inquiry, beliefs about reform-based teaching, and teaching self-efficacy than comparison group teachers. The findings indicate that what teachers learn from the combination of professional development and teaching with educative curriculum varies according to what their knowledge and beliefs are on entering the experience. Surprisingly, high entry-level self-efficacy was associated not only with lower learning gains for the teachers, but also for their students. Finally, teachers' space science learning and that of their students are implicated as mediators of the positive effect of the professional development and educative curriculum enactment on teacher beliefs about reform science teaching. This work refines and extends a theoretical framework of teachers' participatory relationship with curricula.     

From safe spaces to communities of disagreement

The idea of the classroom as a ‘safe space’ has been popular in education for at least two decades. More recently, the term has also been used by religious education scholars not least in the wake of the use of the term in the influential Council of Europe publication ‘Signposts’. In this article, I want to question the usefulness of the term ‘safe space’ within RE. The argument is not against many of the pedagogical aims and strategies that are referred to by the term ‘safe space’. However, the term is ambiguous, fraught with politicised controversy and promises more than in can deliver. These problems cannot be easily fixed by defining the term anew. The article is not only critical in its aim. It presents an alternative strategy. In the conclusion of the article, I suggest construing the RE classroom as a community of disagreement.     

Mathematica互交功能在物理教学中的应用

数学软件Mathematica是一款功能强大的软件,有着广泛的应用。通过机械波的干涉和光栅衍射的实例,简单介绍了如何利用Mathematica来制作互动应用。以此来加强课堂教学效果,激发学生的兴趣,加深他们的理解。     

论化妆仪式:阿尔莫多瓦电影中的身份和性别表演

聚焦于阿尔莫多瓦电影的基本构成元素——化妆,通过对其中身份性别表演的分析,发掘出具有"异托邦"性质的反抗与生存的空间,从而在充满矛盾的化妆仪式中,实现身份和性别的颠覆与解构。     

特级教师专业成长的“文化空间因素”分析

特级教师的专业成长总是基于特定的精神文化空间。影响特级教师成长的精神文化空间因素从宏观到微观主要有地域文化因素、学校文化因素和教研组文化因素。     

20世纪艺术的空间观念

20世纪是空间被抽象化的时代,其间萨尔瓦多·达利的艺术作品证明了走向形体的解体不仅局限于抽象画,还有叙述性和概念性的想法伴随着空间的概念。从20世纪初的毕加索到世纪末的数字革命,艺术家对空间的解构有了建设性的创新,这是20世纪艺术的特点,具有概括性折中主义阵列空间代表性的风格。     

变栅距光栅的衍射

利用惠更斯-费涅耳原理得出任意光栅衍射的光强公式,讨论2种特殊光栅的光强分布特点.     

Hilbert空间中算子框架的稳定性研究

文章利用算子理论的方法研究了Hilbert空间中算子框架的稳定性,给出了算子框架分别在一列算子的不同方式的扰动下的稳定性结果和在一个Bessel列的扰动下的稳定性结果。     

Banach空间中序压缩映射方程组的不动点定理

在Banach空间中引入了几种按序压缩的压缩型映射,用半序的方法讨论了一类非线性映射方程组的不动点的存在性,并推广了相应定理.