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121.
122.
对2根外包钢-混凝土连续梁试件进行了静力加载实验研究与承栽力分析.测量并分析了试件的荷栽-挠度及荷载-应变关系曲线.结果表明:外包钢-混凝土组合梁负弯矩区钢筋和外包钢梁通过抗剪连接措施能有效地共同工作,整体工作性能良好.在承栽能力极限状态,负弯矩和正弯矩最大截面的塑性应变均充分发展,并形成比较理想的塑性铰.随着配筋率的提高,组合梁受弯承栽力明显提高,而延性和转动能力相应降低.在试验数据基础上,给出了外包钢-混凝土组合梁在负弯矩区极限受弯承载力的计算公式,计算结果与实验结果吻合良好. 相似文献
123.
124.
在职教育在教师入职以后的教育教学质量提升中发挥着重要的作用,以教师个人的专业发展作为基本价值取向的小学教师在职教育的实施过程中,应该注意:更新观念,树立在职教育促进教师专业发展的意识;增加在职教育办学主体的多样性和开放性,充分尊重受训教师的自主性;根据不同的需求,对不同发展阶段的教师实行分层设课;提高培训者的素质水平,吸收小学专家型教师充实培训者人才库;建立合理的评价体系,促进小学教师在职教育的科学化、规范化。 相似文献
125.
Beyond gender identity? 总被引:1,自引:1,他引:0
Mary Lou Rasmussen 《Gender and education》2009,21(4):431-447
This paper focuses on the continuing significance of gender identity as a category of analysis within the field of gender theory and research in education. I begin by considering contemporary discussions of the limitations of research relating to gender theory and research in education. Following on from this, I explore some contemporary theorising on the category of gender within educational research in order to highlight ongoing debates that I perceive in the field. Finally, via a discussion of school toilets and gender performance, I consider how theoretical discourses relating to space and architecture might further develop the utility of gender as a category of analysis within education. 相似文献
126.
The purpose of this paper is to provide a summary of evidence for the effectiveness and safety of commonly used crisis interventions
in schools, such as critical incident stress debriefing (CISD), critical incident stress management (CISM), and psychological
debriefing (PD). Two researchers independently searched relevant databases for reviews and meta-analyses in English language
peer-reviewed journals using identified keywords. The database search was supplemented by hand searches of the reference lists
of database-identified reviews. Selected reviews were compared and analyzed for the effectiveness of CISD/CISM/PD interventions.
Research findings suggest that these interventions are ineffective and may be harmful. Evidence of effectiveness of CISD/CISM/PD
interventions in schools is very limited. Given evidence of ineffectiveness and potential harm of CISD/CISM/PD interventions
in adults and limited evidence of these interventions in schools, there is no compelling reason to implement CISD/CISM/PD
following crisis events in schools. 相似文献
127.
Despite the heavy reliance on textbooks in college courses, research indicates that college students enrolled in first‐year science courses are not proficient at comprehending informational text. The present study investigated a reading comprehension questioning strategy with origins in clinical research based in elaboration interrogation theory, which outlines how to encourage readers to recall relevant background knowledge while reading text materials. The theory suggests that the strategy increases the likelihood that readers will integrate what they read with what they know to make new knowledge. The setting for the study more closely resembled classroom conditions compared to similar studies in the past. Unlike previous studies on reading comprehension, students read a challenging passage from the textbook used in a science course in which they were enrolled. In addition, the text was longer than that used in clinical research. The college students (n = 294) in this study were randomly assigned to either a questioning strategy treatment or a rereading placebo‐control. While reading, treatment students were presented with statements taken from regular intervals in their textbook (about every 150 words) and asked a simple why question about each of these statements. Significant differences were found favoring elaborative interrogation theory and its question strategy treatment over the placebo‐control in terms of science comprehension even after significant estimated predictors of prior knowledge and verbal ability were statistically controlled or accounted for by removing the statistical contributions of these predictors to the main effects. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47: 363–379, 2010 相似文献
128.
光呼吸是植物不可缺少的重要生理过程之一,是植物在长期进化过程中适应环境、提高抗逆性等而形成的一条代谢途径。本文简要介绍了植物光呼吸的生理意义。 相似文献
129.
本文介绍了洛克菲勒大学对中学生物科技教师的培训方式和做法。该培训注重以教师科研经历促进科研指导,以师生共同培训示范科研指导,以专家科研报告引领科研指导,以同行交流促进科研指导。 相似文献
130.
Yuanyuan Li Jungang Lou Zhen Wang Fuad E. Alsaadi 《Journal of The Franklin Institute》2018,355(14):6520-6530
In this paper, the globally exponential synchronization problem of dynamical networks with nonlinearly coupling function is considered. Hybrid pinning control strategies are established to force the states of the network to follow some objective trajectory. The impulsive pinning controllers are used to control a fringe of nodes at the impulsive instants, while during the impulsive instants, pinning state-feedback controllers are designed to achieve the control objective. Finally, the validity of the developed techniques is evidenced by an illustrative example. 相似文献