《高等数学》反例作用的教学探讨

在《高等数学》教学中,恰当引入反例,引导学生从反面去思考问题,有助于学生深刻理解数学“悖论”,激发学生的求知欲,培养学生发散性思维和创新性思维。本文结合具体内容从几个方面探讨了反例在《高等数学》教学中的作用。     

分段函数在高等数学中的应用分析

高等数学的主要研究对象是函数, 而分段函数作为一类比较特殊的函数, 在许多方面都能较好地体现函数的性质, 结合实例研究分段函数的极限、连续性、可导性、不定积分、定积分等几类问题,使我们更好地理解函数特性.     

浅谈微积分中的反例

本文列举了微积分中常见的典型反例,并论述了反例在微积分教学中的作用:一方面可以强化概念、揭示概念的内涵,准确把握概念之间的关系,透彻理解定理的条件;另一方面有助于培养学生的逆向思维能力,更有助于培养学生的数学技能。     

对高职《高等数学》课堂教学的思考与探索

本文针对高职《高等数学》课堂教学如何发挥教师的主导作用,通过课堂教学具体的实例,采用相应的教学手段,将抽象数学问题模型化,直观化同时,谈到了课堂中的反例法教学对于学生理解抽象数学问题的作用,课堂中发现、挖掘数学的美,并结合教师自身条件来展现数学的美等等,对于学生建立美好的数学情感,激发学生学习的动力,激发学生学习的兴趣、激发学生学习的潜能,从而提高《高等数学》课堂的教学效果,做了一些思考和探索。     

浅谈高等数学中极限定义的研究和应用

极限概念是微积分学中最重要,最基本的概念。掌握好利用定义证明函数极限是学好高等数学的基础。极限有数列极限,函数极限,多元函数极限等几类,本文直接或间接地用极限定义来证明一些我们经常见到高等数学问题。     

论数学思想方法在高数教学中的应用

随着教育改革的不断深入,数学思想方法在高等数学教学中的应用越来越受到教育工作者的重视。本文阐述了数学思想方法的概念及其在高等数学教学中的重要地位和关键作用,并从目前高等教育的现实出发,提出了在高等数学教学中渗透数学思想方法应注意的问题。     

独立学院数学改革之数学实验——Matlab平台上“四步法”研究函数的单调性与凹凸性

数学实验是高等数学改革的重要方向,借助数学软件简化数学计算,注重数学应用是数学教学的一个新动向。函数的单调性与凹凸性是高等数学中导数应用部分的一个重要内容。本文借助功能强大的数学软件Matlab,巧用计算与图形功能,提出应用导数研究函数的单调性与凹凸性的四步法,即(1)求导函数;(2)求导函数的零点;(3)画原函数与导函数图;(4)确定函数的单调性或凹凸性。该方法采用先求导函数零点再画图的顺序,确保画图区域包含导函数的零点,避免遗漏极值点或拐点,进一步通过实例系统体现该方法对函数单调性与凹凸性的可视化判定。     

函数的极值与MATLAB应用

函数的极值是高等数学的重点和难点,本文讨论了如何借助多媒,运用MATLAB数学软件求函数的极值。     

独立学院高等数学教学中融入数学实验的实践

本文分析了在独立学院高等数学中融入数学实验的意义,并通过教学实例二元函数极值,说明了具体的教学设计过程。     

高等数学教学应注意体现数学建模思想

当前时代的大发展,使得高等数学的教学不再是单纯的定义和理论讲解的理科科目教学了,而是在很大程度上改变了高等数学的作用和功能,就是说现在的高等数学教学必须重新定位自己才能满足当代的发展要求,尽可能地把数学作为一种工具来解决一些实际问题。这就出现了数学建模思想,因为把数学建模的思想融入到高等数学教学当中去的话,就可以充分实现新时代高等数学的教学目标。本文将具体探索到底该如何来使得数学建模思想在高等数学教学中体现出来的问题,并结合实际的教学实践,给出了一些建议。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.