外包钢-混凝土连续组合梁的负弯矩极限承载力(英文)

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.     

论专业发展取向的小学教师在职教育的实施

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。     

Beyond gender identity?

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.     

Students' comprehension of science textbooks using a question‐based reading strategy

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     

美国洛克菲勒大学的中学生物科技教师培训介绍

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。     

Synchronization of dynamical networks with nonlinearly coupling function under hybrid pinning impulsive controllers

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.     

The mascot that wouldn’t die: a case study of fan identification and mascot loyalty

The issue of sports mascot loyalty, especially to those mascots considered offensive, was investigated through fan identification theory, and applied to the mascot controversy at a large university in the United States. Replicating a previous university survey on the mascot question, a survey of current university students (N = 3616) revealed a strong relationship between mascot loyalty and fan identification, particularly related to one’s perceptions of ‘belonging to the university sports family’, and ‘associating with sports fans’ of the university. Other important findings include age differences and the marginalization of Asian-American fans. The implications and applications of these findings were discussed.     

旅游信息服务生态链模型及其协同管理研究

[目的/意义]基于信息服务生态视角,研究旅游信息服务生态链模型及其协同管理,以期为提高旅游信息服务质量及效率提供参考。[方法/过程]文章首先论述了旅游信息服务生态链的基本概念及其特点,其次对旅游信息服务生态链的构成要素进行分析并构建模型,最后从链内和链间两个维度探讨旅游信息服务生态链的协同管理。[结果/结论]通过旅游信息服务生态链模型及其协同管理进行研究,为提高旅游信息服务质量和效率提供参考。     

汽车车内噪声品质评价方法研究

声品质概念的提出,对噪声控制提出了不仅要降低噪声级,还要能够调节声音特性的要求,因此对声品质进行准确的评价非常重要。声品质以人的主观感受作为最终的评判标准,但目前所有的仪器都无法直接测量人的听觉数值,必须借助于心理声学客观参量进行描述。主观评价和心理客观参量相结合,建立数学模型进行分析计算,得到较准确的声品质评价结果,为噪声主动控制技术的发展提供了理论基础。     

论信息生态系统中信息人的相互作用

探讨在信息生态系统中信息人相互作用的范围、纽带、方式和效果。指出相互作用范围包括种内相互作用和种间相互作用,相互作用的纽带主要有信息资源流转和信息资源共建共享,竞争和合作是信息人相互作用的两种基本方式,相互作用效果类型多样且分布具有偏利、偏害、同质互利、异质互利、同质互害、异质互害等多种情况。