一个投资问题的数学模型

用动态规划方法求解了一个有市场摩擦的投资决策问题,并且对问题的解进行了分析讨论.文章的最后对模型进行了深化.     

Academic induction for teacher educators

This paper is a reflective exploration of major challenges facing new teacher educators as they make the transition into the academy, and of ways that best support them. The transition problems identified in the emerging body of literature about teacher educator career entry were offered for comment to a small group of new teacher educators in an Australian regional university. Their responses added complexity and nuance, suggesting a heterogeneity of entry pathways and experiences, as well as avenues for further inquiry. Consideration of the resulting issues leads to wider questions about the place of teacher education in the academy. In turn, this leads to question if the challenges faced by newly appointed teacher educators are distinctive from those experienced by all new academics. The paper argues for multidisciplinary cohorts for induction, and makes recommendations for systematic, inclusive induction programs for all new academics, including teacher educators. The paper concludes with two further recommendations. First, large‐scale research is required to inform us about the contemporary teacher education workforce. Little is currently known about entry and career pathways, nor of the impact of recent policy and funding changes such as research performativity measures and increasing employment of sessional staff. Second, induction must be seen as an organisational and professional responsibility shared by many, including new and experienced academics, faculties, departments, institutions and professional associations.     

运用“泛化”论和“分化”论指导多重复句教学

复句教学是语言教学的重头戏。引入“泛化”和“分化”这两种学习理论来指导多重复旬教学，对于增强学生的语感和语言意识，帮助学生提高分析和运用语言的能力，提高分析文章结构思路的能力，都是大有裨益的。     

利用PLC中断功能测定转速

介绍了利用PLC中断功能测定转速的原理,方法及软件设计。     

The effects of a short-term professional development program on physical education teachers’ behaviour and students’ engagement in learning

This study examined the effect of a short-term training programme οn in-service physical education teachers’ behaviour and students’ engagement in learning. Teachers (n = 32) were randomly divided into an experimental and a control group. Each teacher’s behaviour was observed in six lessons; two for each measurement (pre, post and retention) and analysed with qualitative dimensions of lesson introduction, task presentations and lesson closure. Student engagement was analysed with the time analysis form. The total and successful attempts of selected students were also recorded. The experimental group attended a two-hour lecture followed by a two-hour practicum, and showed significant improvement and learning of all the examined behaviours as well as significantly higher performance than the control group. Also, students of the experimental teacher group presented significantly greater activity time, more practice attempts and more successful ones than their peers in the control group. The results establish the effect of the training programme on teacher behaviour and student engagement in learning.     

Towards shaping the field: theorising the knowledge in a formal course for academic developers

In recent years there have been calls both for building the knowledge base of academic development (AD) and for systematic induction of newcomers to the field if AD is to advance as a professional and an academic field. Despite the importance and complexity of AD, induction of novice academic developers remains mostly informal and predominantly focuses on the practices of the field. We argue that more-experienced academic developers have an obligation to provide formal and systematic routes into the field and its knowledge base than is currently the case. One way of doing this is through offering a formal course for growing the next generation of academic developers. Such a course could equip newcomers with a more solid and shared knowledge base, thus contributing to shaping the epistemic spine of AD. In this paper, using Maton's Legitimation Code Theory, we offer an analysis of an existing course aimed at equipping novices with the theoretical and practical knowledge to enable them to solve some of the problems in higher education. From this analysis have emerged general principles that could inform the selection, sequencing and pacing of knowledge in a formal course for academic developers.     

Factors influencing students’ perceptions of graduate attribute acquisition in a multidisciplinary honours track in a Dutch university

This article studies the relationship between students’ perceptions of teaching and learning in a multidisciplinary honours programme and their impact on graduate attributes acquisition. The study, conducted among 73 honours students in a Dutch research university, evaluates perceived improvement in graduate attributes through annually collected survey data pertaining to student motivation, perception of the teaching and learning environment, engagement in the programme and registered course marks. The evaluation study reveals that to the extent of the perceived development of graduate attributes, three factors play crucial roles: students’ performance motivation, the amount of teacher support in creative and critical thinking, and students’ inclination to approach the honours track as a learning community.     

‘If there is a job description I don’t think I’ve read one’: a case study of programme leadership in a UK pre-1992 university

This paper reports on an exploratory study of the role of programme leaders (PLs) in a pre-1992 university, based on interviews with PLs (7) and a survey of taught Masters students (54) in a single school. The study elicits PLs’ activities, most of which might be categorised as managerial and administrative, with leadership required intermittently; the preeminent role involves managing programme quality. The study finds that institutional guidelines overlook important aspects of PLs’ work (such as organising enrichment activities and student advocacy) which affect the quality of provision, and the findings challenge the notion that PLs are engaged in a ‘disesteemed’ service.