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7月1日,全国地理信息产业峰会上传出信息,国内的GPS导航产业正在突飞猛进的发展,目前产业总值已经超过500亿元,用户超过500万人,并且以每年数百万用户量的速度增长。 相似文献
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In many economics programs, both graduate students and new assistant professors are thrown into the classroom without guidance, with the potential for negative ramifications that can last throughout their careers as teachers. This article is a primer in which we offer unique insights into useful methods and practices for new teachers in the economics profession. We discuss organizational and logistical issues that new teachers must consider and then offer our advice on specific pedagogical tools and techniques. Following the growing literature on the benefits of student‐centered and interactive instruction, we focus on ways instructors can move away from the traditional “chalk and talk” approach. We organize and present these alternative pedagogies in terms of their level of complexity and time required. We conclude with suggestions and resources for the continued growth and development of new teachers in economics. 相似文献
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学前儿童平板电脑导航按钮交互设计评价指标的建立,有利于交互设计在学前儿童平板电脑中的优化和改良.从学前儿童体验视角出发,创建平板电脑导航按钮交互设计的多维度多层次评价指标,该方法以创建多维度多层次评价指标为基础,根据D-S证据理论设计评价指标的决策矩阵,利用层次分析法确定评价指标权重.最后以优学派儿童平板电脑童话故事界面导航按钮8个优化设计方案对比分析与评价为例,验证了所提出方法的合理性与有效性. 相似文献
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《The Developing economies》2017,55(4):261-289
In this paper, we use results of a novel survey covering 1,000 firms from 16 different sectors of the Turkish economy along with a two‐sector dynamic general equilibrium model to measure the extent of informality in these sectors. Moreover, we also evaluate the effects of two different policy tools on informality, namely, income taxes and tax enforcement. Our results show that while both are effective policy tools in dealing with informality, tax enforcement is a relatively more efficient tool and tax becomes quite ineffective at lower levels of informality. 相似文献