2004年亚洲花样滑冰锦标赛男、女单人滑技术问题分析   总被引：5，自引：0，他引：5  

赵金平  沙延威 《哈尔滨体育学院学报》2005,23(4)

通过对2004年亚洲花样滑冰锦标赛男子、女子单人滑在短节目和自由滑中的技术表现,采有现场观察方法,将各类技术动作完成程度和出现的问题进行统计,用数据说明技术状况并加以分析,为教练员和运动员的训练和比赛提供参考。  相似文献   

An approach to estimate degree completion using drop-out rates     

《Studies in Educational Evaluation》2014

A completion rate of an institution I of year x is defined as the proportion of starting students during year x that succeed in graduating at I at some point in the future. In this paper, a new method is proposed to estimate such completion rate. This indicator is entirely based on the population of drop-out students during one academic year x at the institution I. The proposed method is not based on a cohort of students so it allows an estimation of the current school effectiveness without substantial delay. Furthermore a statistical framework is presented in which completion rates can be studied. The proposed methodology results in a statistical estimator with a bias that stays small under appropriate assumptions.  相似文献   

Does the expansion of higher education reduce gender gaps in the labor market? Evidence from a natural experiment     

《International Journal of Educational Development》2021

In 2005 Chilean congress approved a bill that established a new funding tool for higher education funding through a "private system" of student loans (named CAE). The system aimed to support higher education inclusion among students with academic merits overcoming the lack of resources for ensuring access. Politicians have referred to this reform in higher education funding as a critical factor for expanding higher education enrollment. By its immediate results, it is a great strategy to cope with inequality and social mobility issues. However, there is little empirical evidence about labor market variables' overall effects, such as gender discrimination. This work attempts to estimate the new instrument's impact on the three standard measures of gender labor discrimination: labor participation, the gender wage gap, and the glass ceiling. The empirical strategy uses a difference-in-difference approach to provide estimates. The results indicate that the CAE policy changed women's labor market participation and contributed to close the gender pay gap in the labor market. However, the glass ceiling increased in the entire labor market, but not in the white-collar job market in specific.  相似文献   

Lessons learned from two years of K-MOOC experience     

S. Lee 《Educational Media International》2019,56(2):134-148

In October 2015, Korea launched its first massive open online course (MOOC) program entitled K-MOOC. This study analyzes the K-MOOC learner data provided by the National Lifelong Learning Agency. The data include the 272 courses implemented between 26 October 2015, and 31 August 2017 and the participants who took the said courses. The number of participants in the K-MOOC courses in the same period stands at 289,163. The average completion rate of K-MOOC was 9.3%. It is not far below the average completion rate of MOOCs in general, which is known to be 10% or lower. A comparison between Korea’s K-MOOC and the United States’ edX, which consists of similar courses to the former, shows that the most visible difference between the two lies in the average number of participants per course. An average K-MOOC course is taken by 1,063.1 participants, whereas an average edX course serves 15,341.5 participants. Moreover, there were 91% of participants who accessed the K-MOOC courses from their host country, whereas it was 29% for edX.  相似文献   

Bibliographically coupled patents: Their temporal pattern and combined relevance     

Chung-Huei Kuan  Dar-Zen Chen  Mu-Hsuan Huang 《Journal of Informetrics》2019,13(4):100978

Bibliographically coupled patents reveal a temporal pattern associated with their ages (how long ago they have been issued) and spans (their distance in time). The coupling strength of the aged or long-spanned patent pairs may be inherently limited, especially for fields that reveal patent and reference expansions. This study proposes a simple measure, combined relevance (CR), to counter such impact. Unlike traditional measures, CR provides more balanced treatment to short- and long-spanned but favors more aged patents pairs. A fixed CR threshold may be more safely applied with a reduced possibility of erroneously removing patent pairs that are truly related. For observing long-term knowledge dissemination or tracing overall development trajectory, CR may be an alternative.  相似文献   

教育扩张的新制度主义分析经验与理论研究进展     

闫引堂 《比较教育研究》2011,(12):53-58

教育扩张是20世纪60年代以来西方社会科学研究的一个重主题,出现了很多解释教育扩张的理论,这些理论能够解释单个国家的教育扩张现象,却难以解释世界范围内的教育扩张现象。新制度主义通过教育扩张的长时段量化分析和深度的比较历史研究,表明随着现代性的扩张,教育扩张超越了民族-国家的界限,在世界范围内呈现出趋同的特征。  相似文献   

用于心率变异信号分析的动力噪声干扰混沌系统建模(英文)     

何振亚  裴文江  尉承建  杨绿溪  S.S.Hull  张隐磐 《东南大学学报》1999,(2)

心脏动力系统可能是其内在动力学和外部环境影响的混合体，因此从心率变异信号中确定混沌现象非常困难．本文提出一种优化方法，获得一组由某种动力系统产生的时间序列，并使该序列与原始信号尽可能接近．对动力噪声干扰混沌模型进行了检验后，应用于心率变异信号分析时发现了正的最大Ｌｙａｐｕｎｏｖ 指数  相似文献   

一类修正的Bernstein算子的点态逼近估计     

连博勇  陈玲菊 《闽江学院学报》2013,34(2):13-15

利用经典的Bojanic-Cheng分解方法,结合分析技术,研究了修正的Bernstein算子对一类绝对连续函数的逼近,得到比较精确的收敛阶和渐近展开式.  相似文献   

关于我国现代教育发展阶段问题的探讨   总被引：1，自引：0，他引：1  

王本陆 《北京师范大学学报(社会科学版)》2011,(3)

清晰定位当前我国教育发展所处的具体历史阶段,准确把握现阶段的主要矛盾,是我国教育改革与发展的现实要求。与人类教育发展的一般历程相近,我国教育发展经历了古代教育与现代教育两个大阶段。清末"兴学校"废科举"是我国教育从古代教育演化为现代教育的基本标志。20世纪以来我国教育的发展探索,是不断确立完善中国现代教育体系的实践过程。我国现代教育百余年的发展历程,依据教育发展主要矛盾的变化,可以区分为体系创建、规模扩张、质量提升三个基本阶段。当前,我国教育发展正处在由规模扩张阶段向质量提升阶段过渡的特殊时期,为迎接质量提升时代到来而精心准备,是当前教育理论与实践探索的共同使命。  相似文献   

规模扩张背景下的香港高等教育质量保障     

吴玫 《华南师范大学学报(社会科学版)》2011,4(4)

香港高等教育在过去20年里经历了从精英阶段到普及化的迅速发展,然而规模的扩张并未带来质量的下降,这与香港高等教育多元化的质量保障机制密切相关。香港针对不同的高等教育界别和层次,成立了三个主要的质量保障机构以负责各自界别和层次的高等教育质量保障,取得了良好的效果,但也面临着新的挑战。  相似文献