再探体育课生理负荷量

为了探索青少年学生在学校体育活动中最佳的负荷值,对23名高中女生进行10周的试验,对其10周测试前后的一般身体指标、生理指标进行测试,结果表明,中等或中等以下强度,只能使学生保持现有机能状态,而不能促进学生机能状态的发展.     

器械体操教学中技术细节对完整技术掌握的影响

在文献资料的基础上，通过实验对比的方法对器械体操教学中的技术细节进行了研究。研究表明，技术细节对完整动作的影响比较大，在教学讲解时，要注意运用力学分析帮助学生理解动作的力学原理。     

浅析我国公务员考核制度的问题及其对策

当前公务员考核制度存在考核标准不科学、考核结果措施不得力等问题,创新公务员考核制度,科学制定考核标准,事关公务员队伍建设和行政效率。完善公务员考核激励机制,加强公务员考核监督,是树立政府良好形象、提高办事效率的当务之急。     

高校图书馆外文期刊信息资源配置

认为高校图书馆传统外文期刊信息资源配置模式存在弊端,提出参考读者外文电子期刊各种点击率的统计分析配置信息资源的理念,论述其在揭示读者外文期刊信息需求特点及准确配置外刊资源以满足读者真实需求等方面所起到的积极作用;并通过福建农林大学图书馆读者对SD数据库电子期刊点击率统计分析实例,提出外文期刊信息资源配置原则和策略。     

The experience of receiving and then losing a scholarship: a tracer study of secondary school scholarship recipients in Uganda

This study reports findings of a tracer that investigated differences in the profile and subsequent experiences of scholarship recipients in Uganda who were able to complete the lower secondary school cycle (O level) without interruption (N = 174) and those that dropped out before completing their O-level cycle (N = 51), thereby losing their scholarship. Findings indicate that the scholarship programme had important positive impacts on all participants, even if they were unable to complete their O level. Moreover, scholarships had a multiplier effect; they had positive impacts on recipients' siblings, parents, and neighbours. When scholarship recipients did drop out, the most prevalent causes were poverty, pregnancy, and poor performance. However, even the modest amounts of education these dropouts received changed the course of their lives in positive ways.     

指数分布的失效率的EB估计及收敛速度

本文主要针对指数分布的失效率在加权平方损失函数下导出了参数的Bayes估计,并利用核估计的方法构造了参数的EB估计,同时在适当条件下获得了其收敛速度O(n-2λ2s2(2s+1)(λs+1)).     

Accelerated matrix recovery via random projection based on inexact augmented Lagrange multiplier method

In this paper, a unified matrix recovery model was proposed for diverse corrupted matrices. Resulting from the separable structure of the proposed model, the convex optimization problem can be solved efficiently by adopting an inexact augmented Lagrange multiplier (IALM) method. Additionally, a random projection accelerated technique (IALM+RP) was adopted to improve the success rate. From the preliminary numerical comparisons, it was indicated that for the standard robust principal component analysis (PCA) problem, IALM+RP was at least two to six times faster than IALM with an insignificant reduction in accuracy; and for the outlier pursuit (OP) problem, IALM+RP was at least 6.9 times faster, even up to 8.3 times faster when the size of matrix was 2 000×2 000.     

脱硫石膏的施用量对盐碱地葵花生长的影响

采用拉丁方田间试验设计,测定脱硫石膏在不同施用量条件下对盐碱地的改良效果.结果表明:施用脱硫石膏显著提高了土壤有机质和养分含量,一定程度上降低了土壤碱化度、pH值和全盐含量,提高了葵花出苗率、千粒重和产量.根据脱硫石膏施用量与葵花出苗率、产量的模拟曲线关系,测得利用脱硫石膏改良盐碱化土壤的最佳施用量为28.0 t/hm2左右.     

一个非局部波动方程组解的爆破增长率的估计

本文考虑如下非局部波动方程组的初值问题:这里0相似文献   

Predicting higher education outcomes and implications for a postsecondary institution ratings system

The accountability of colleges and universities is a high priority for those making policy decisions. The purpose of this study was to determine institutional characteristics predicting retention rates, graduation rates and transfer-out rates using publicly available data from the US Department of Education. Using regression analysis, it was determined there are 14 predictors of the full-time retention rate, 7 predictors of the part-time retention rate, 15 predictors of the graduation rate and 12 predictors of transfer-out rates. Institutions and policymakers could use the results of this analysis to determine the policies that would be beneficial to improving the analysed outcomes. All four analyses indicate good fit with R² ranging from .273 to .828. Some possible policy implications include addressing selectivity if institutions want to improve retention rates and addressing affordability to improve retention and graduation rates.