An efficient numerical shape analysis for light weight membrane structures

The determination of initial equilibrium shapes is a common problem in research work and engineering applications related to membrane structures. Using a general structural analysis framework of the finite particle method （FPM）, this paper presents the first application of the FPM and a recently-developed membrane model to the shape analysis of light weight mem- branes. The FPM is rooted in vector mechanics and physical viewpoints. It discretizes the analyzed domain into a group of parti- cles linked by elements, and the motion of the free particles is directly described by Newton＇s second law while the constrained ones follow the prescribed paths. An efficient physical modeling procedure of handling geometric nonlinearity has been developed to evaluate the particle interaction forces. To achieve the equilibrium shape as fast as possible, an integral-form, explicit time integration scheme has been proposed for solving the equation of motion. The equilibrium shape can be obtained naturally without nonlinear iterative correction and global stiffness matrix integration. Two classical curved surfaces of tension membranes pro- duced under the uniform-stress condition are presented to verify the accuracy and efficiency of the proposed method.     

论高职学生创新精神的缺失与重塑

培养学生创新精神已经成为素质教育的重点之一。透析高职学生的创新精神,其缺失表现在:注重物质成果的丰富,轻视主体自身的创新;追求外在形式的新异刺激,忽视内在本质的变革提升;深信技术创新和未来发展,藐视对优良传统的发掘与发展等。因此,应重塑高职生的创新精神。     

Teaching for equity: insights from international evidence with implications for a teacher education curriculum

Researchers, practitioners, and policy-makers in many countries are grappling with ways to address the persistent problem of inequitable educational outcomes between advantaged and disadvantaged students. This paper reports the results of a unique cross-country, cross-cultural analysis undertaken to provide insights into teaching practices that promote equity, drawing on programmes of empirical research or syntheses of major programmes of research that worked from a complex, non-linear view of teaching and its outcomes. We analysed international evidence about teaching practices that have a positive influence on diverse students’ learning outcomes and opportunities and then compared and contrasted the results of these analyses. From the commonalities we identified, we derived six interconnected facets of practice for equity, which are general principles of practice rather than specific teaching strategies or behaviours. Building on these facets, we developed a conceptual framework that can inform an equity-centred teacher education curriculum that specifically addresses the task of preparing teachers who can make a positive difference to the learning opportunities and outcomes of diverse students, particularly those historically disadvantaged by the education system.     

Alternative placements in initial teacher education: An evaluation

The paper evaluates a programme of short alternative placements for final-year B.Ed. students in Northern Ireland, which aims to broaden student teachers’ experience and develop their transferable skills. The alternative placement programme is set first in an international context of evolving pre-service field placements and then set in a local context marked by a surplus of teachers; a Revised Curriculum that emphasises the importance of employability, lifelong learning, and enterprise and entrepreneurship; and the introduction of the Extended Schools programme. The evaluation is based on feedback from the 2007 to 2008 cohort of students whose comments confirm the value of exposing student teachers to non-traditional educational environments.     

大学生诚信缺失的根源及抑制方法

诚信缺失已成为一种公害,严重侵害社会肌体,大学生在社会现实的挤压下受到诚信的挑战。利益的追求、制度的不健全、竞争的加剧、谎言的盛行和教育的功利化是大学生诚信缺失的根源。诚信能够形成个人心理秩序和人与人之间的重叠共识,是大学生的立人之本与行为之方。抑制大学生诚信缺失需要加强诚信教育和完善诚信制度体系,让诚信成为大学生的生存智慧和生活态度。     

Motivating Inquiry in Statistics and Probability in the Primary Classroom

We describe how the use of a games environment combined with technology supports upper primary children in engaging with a concept traditionally considered too advanced for the primary classes: The Law of Large Numbers.     

大学英语精读课中的主体间性和教学模式探讨

本文在新的观念下对精读课的教学模式进行初步探讨,采用定性研究,总结出了三种新的读课教学模式。     

'The Gaps I Mean' - Subject Knowledge and the Training of English Teachers

The way subject knowledge is characterised in recent legislation covering initial teacher training is scrutinised, and a different model for describing the way such knowledge interacts with other aspects of teaching is offered. Recent findings by OFSTED in the inspection of secondary teacher training courses in English are discussed, to suggest that the current use of a discrete standard for subject knowledge may mask actual deficiencies in this area. In contrast, school inspection reports seldom isolate teachers' subject knowledge, even when strengths or weaknesses may be best identified in this way. The model offered attempts to stress the importance of subject knowledge for effective English teaching, but suggests a broader definition of the concept than that used in current circulars governing initial teacher training. Finally, the implications of the model for both the auditing of subject knowledge and the assessment of trainee teachers are explored.     

背向滑步推铅球的衔接技术

衔接技术是铅球投掷技术的重要环节，是沟通滑步技术与最后用力技术的关键。恰当地把握这一项技术环节是完整推铅球技术的核心。衔接技术又叫过渡步技术，近几年来，对优秀运动员推铅球的衔接技术有适当的分析。本文在前人实验的基础上，对衔接技术进行综合分析，目的在于正确阐明衔接技术的要领，衔接技术与滑步技术、预行速度、重心移动轨迹等之间存在的关系，从而使整体技术更加符合运动技术原理，利于提高运动成绩。     

The effects of trust assurances on consumers’ initial online trust: A two-stage decision-making process perspective

This research examines the effects of type and displaying phase of trust assurances on consumers’ initial trust in an online retailer. We propose a two-stage formation process of initial online trust. The main effects of trust assurances on initial trust and the interaction between type and displaying phase of trust assurances are explored. We conducted a laboratory experiment to test our hypotheses. The results demonstrate that there exist positive effects of displaying trust assurances on initial trust. In particular, general trust assurances perform better when displayed in the information-searching stage, while specific trust assurances lead to higher initial trust when displayed in the choice stage. In the context of providing trust assurances, consumers’ knowledge of trust assurances exerts a direct and positive effect on initial trust. High knowledge level of trust assurances helps to generate the advantage of displaying assurances in the right stage. These findings have several important implications for research and practice.