期刊文献分布特征的分析

以1999-2003年生物技术学科期刊文献分布曲线为依据,利用知识密度梯度graduR(n)的概念,对知识场中文献分布特征进行分析。结果表明,在任何一个学科的知识场中,集中区文献分布呈间断性变化,离散区文献分布呈连续性变化,从而构成期刊文献分布的基本特征。基于此,指出期刊文献分布特征研究是对文献分布规律的进一步描述。     

Do children spend too much time in schools? Evidence from a longer school year in Indonesia

I examine the effects of a longer school year in Indonesia on grade repetition, educational attainment, employability, and earnings. I exploit an arbitrary rule that assigned students to a longer school year in Indonesia in 1978–1979, which fits a fuzzy regression discontinuity design. I find the longer school year decreases the probability of grade repetition and increases educational attainment; it also increases the probability of working in formal sectors and wages later in life. These results suggest the length of school years in Indonesia is not too long.     

Optimal Design for Two-Level Random Assignment and Regression Discontinuity Studies

An important concern when planning research studies is to obtain maximum precision of an estimate of a treatment effect given a budget constraint. When research designs have a multilevel or hierarchical structure changes in sample size at different levels of the design will impact precision differently. Furthermore, there will typically be differential costs of enrolling additional units at different levels of the hierarchy. The optimal design problem in multilevel research studies involves determining the optimal sample size at each level of the design given specified design parameters and a specified marginal cost of recruitment at each level. The current work extends existing results by considering optimal design for (a) unbalanced random assignment designs and (b) regression discontinuity designs.     

中学课程教学效率的协方差分析方法

利用协方差分析方法评价中学课程教学效率。     

生命发展的非连续性及其教育--兼论博尔诺夫的非连续性教育思想

生命的发展是连续性和非连续性的统一,但以往教育学对人的发展的研究,注重的是发展的连续性,忽视了发展的非连续性.针对这一缺陷,本文论述了生命发展非连续性的原因以及它的教育形式,重点评述了博尔诺夫的非连续性教育思想.     

Incentives for teacher relocation: Evidence from the Gambian hardship allowance

We evaluate the impact of the Gambian hardship allowance, which provides a salary premium of 30–40% to primary school teachers in remote locations, on the distribution and characteristics of teachers across schools. A geographic discontinuity in the policy's implementation and the presence of common pre-treatment trends between hardship and non-hardship schools provide sources of identifying variation. We find that the hardship allowance increased the share of qualified (certified) teachers by 10 percentage points. The policy also reduced the pupil–qualified teacher ratio by 27, or 61% of the mean, in recipient schools close to the distance threshold. Further analysis suggests that these gains were not merely the result of teachers switching from non-hardship to hardship schools. With similar policies in place in more than two dozen other developing countries, our study provides an important piece of evidence on their effectiveness.     

重点上市高新企业R&D投入对绩效影响的研究

以科技为主导的上市高新技术企业迫于政策硬性规定以及基于追求高额回报率的内在动力不断加强RD投入。本文通过对30家重点上市高新企业进行线性回归分析以及对17家企业进行DEA分析,得出了RD投入与企业成长能力不具有明显的线性相关关系,而同盈利能力线性相关并且投入产出效率不高的结论。给出的建议是制定更为合理的高新技术企业政策,拓宽融资渠道的同时优化人才资源配置。     

政府科技投入对高校创新产出影响的实证分析—基于2004-2013年的数据*

【】本文根据2004年-2013年《高等学校科技统计资料汇编》的相关数据对政府科技投入以及高校创新产出进行了相关研究。本文首先将全国高校按照学校类型进行分类,并依据此对其政府科技投入以及高校创新产出进行了定性分析以及实证分析。实证结果显示无论是利用总量数据、人均数据还是增长率数据发现高校的政府科技投入与高校创新产出在呈现出正相关性关系外,也同时存在一定的滞后性,且对于不同类型高校来说,其边际效益以及滞后性都存在一定差异。最后,本文根据研究结果提出了对相关政策的建议。     

广义回归神经网络在全国高技能人才需求中的应用研究

广义回归神经网络(GRNN)克服了BP神经网络运行中收敛速度慢且局部极小的不足,正逐渐被应用到货运量、农业需求及煤炭需求方面。引入GRNN对全国高技能人才需求进行预测检验,并从5个角度将其与GM(1,1)模型的输出结果做对比分析。结果表明GRNN模型具有优异的预测性能,验证了把该模型引入高技能人才需求这一新领域是有效可行的。为今后进一步定量研究有关高技能人才需求方面提供一种新方法。     

职业技能大赛对高职学生的影响力分析——以广东理工职业学院为例

为对职业技能大赛对高职学生产生的影响进行实证分析,本文通过问卷调查采集数据,对参赛过和未参赛过学生的综合情况进行Logistic回归分析,对三年级学生的就业情况以及学生参赛前后的情况均进行多元方差分析,结果显示大赛对学生的专业认识、自学能力、就业处境等多方面存在积极影响,而对学生的创新精神、自信心和竞争意识等方面则影响不大。通过分析明确了＂以赛促教＂的教学活动观,同时为高职院校教育改革、大赛制度改革和调整方向提供了参考。