乔姆斯基的最简方案理论--词库、移位、合并之解读     

牛晓莉 《长治学院学报》2013,(3)

乔姆斯基提出的最简方案理论的基础是词库的存在,移位、合并是最简方案操作时必须遵循的方法。它们对于人类语言的研究具有非同凡响的作用,尤其在儿童语言习得和第二语言的学习方面起到指导作用。  相似文献   

高职计算机基础课分级教学存在的问题及改进     

唐世文 《广州广播电视大学学报》2008,(1):50-52

根据高职生源的特点,高职院校计算机基础课教学中普遍采取分级教学的教学改革模式,实现了因材施教的目标,提高了教学效果。实践中发现,这种教学改革还存在一些缺陷,本文对存在的问题进行了仔细分析,提出了改进型分级教学和分块型分级教学两种改进措施。  相似文献   

一种快速中文分词词典机制     

吴晶晶  荆继武  聂晓峰  王平建 《中国科学院大学学报》2009,26(5):703-711

通过研究目前中文分词领域各类分词机制,注意到中文快速分词机制的关键在于对单双字词的识别,在这一思想下,提出了一种快速中文分词机制:双字词-长词哈希机制,通过提高单双字词的查询效率来实现对中文分词机制的改进.实验证明,该机制提高了中文文本分词的效率.  相似文献   

Student outcomes of the physical education and physical literacy (PEPL) approach: a pragmatic cluster randomised controlled trial of a multicomponent intervention to improve physical literacy in primary schools     

Rohan M. Telford  Lisa S. Olive  Richard J. Keegan  Sarah Keegan  Lisa M. Barnett  Richard D. Telford 《Physical Education & Sport Pedagogy》2021,26(1):97-110

ABSTRACT

Background: Health organisations such as the United Nations continue to place an expectation on school physical education (PE) programmes and wider school strategies to ensure students develop physical literacy and receive the well-established benefits of meeting physical activity guidelines. Barriers to meet this expectation such as lack of trained PE teachers, lack of time and greater emphasis on academic achievement are ongoing challenges to schools. The purpose of this study was to evaluate the impact of the multi-component Physical Education Physical Literacy (PEPL) intervention, designed to improve students’ fundamental movement skill, perceived physical abilities and level of physical activity.

Method: A qualified PE teacher implemented the PEPL intervention across seven schools, and another seven schools formed a control group as part of a randomised cluster-based trial. Grade 5 students (N?=?318, age 10.4 years?±?SD 0.4) completed assessments of physical activity, fundamental movement skill, attitudes towards PE, and self-perceptions of physical abilities before and after a 33-week intervention. Intervention effects were examined using general linear mixed models. Post-intervention focus groups with students were used to develop insights into experiences and outcomes.

Results: With no significant gender interactions, the PEPL approach led to enhanced object control skills (β?=?1.62; SE?=?0.61; p?=?0.008), with little evidence of any other fundamental movement skill improvements in excess of those in the control group. There was also modest evidence for an effect on accelerometer measured moderate-to-vigorous physical activity (MVPA) during school time (β?=?4.50; SE?=?2.39; p?=?0.058), but this was not accompanied by any significant intervention effect over the entire week. Questionnaires indicated students in the PEPL programme became less satisfied with their own sporting ability (β?=??0.20; SE?=?0.08; p?=?0.013) but qualitative data analyses suggested that they enjoyed the PEPL approach experience, becoming more motivated and confident in their physical abilities.

Conclusions: Evidence of enhanced object control skill, increased confidence and motivation to be physically active, and moderate evidence of more MVPA during school time, indicate that the introduction of the PEPL approach contributed to the development of student physical literacy. A decrease in perceived sporting competence warrants greater attention on student’s self-perceptions in future iterations of the intervention.

Trial registration: Australian New Zealand Clinical Trials Registry identifier: ACTRN12615000066583.  相似文献   

一种新的修辞格--叹问     

杨艳 《贵州教育学院学报》2003,19(6):62-63

“叹问”是颜迈教授《现代汉语》教材中提出的一种新的修辞格，它和普通的设问、反问有着本质的不同。在文学创作中，经常使用这种修辞方法。这种新的修辞格应该广泛推广。  相似文献   

Comparison study of harmonic imaging (HI) and fundamental imaging (FI) in fetal echocardiography     

赵博文  汤富刚  寿金朵  徐海珊  吕江红  范妙英  范晓明  潘美 《浙江大学学报(A卷英文版)》2003,4(3):374-377

Objectives: To directly compare the quality of harmonic imaging (HI) and fundamental imaging (FI) in fetal echocardiography and to determine any differences in image quality between the two modalities. Methods: Fetal echocardiograms were performed with the use of FI and HI in 58 fetuses, image quality and visualization of left and right atria, left and right ventricles, mitral and tricuspid valves, aortic and pulmonary valves, left and right ventricular outflow tracts were evaluated and compared between FI and HI. Results: Mean HI scores were higher than mean FI scores (2.73±0.43 vs 2.16±0.69, P<0.001)for all the cardiovascular structures evaluated. Compared with FI, HI improved the image quality and visualization of fetal cardiac structures in subjects with both good (2.73±0.43 vs 2.88±0.32, P<0.001) and suboptimal (1.65±0.41 vs 2.58±0.47, P<0.001) echocardiographic windows. The interobserver correlation coefficient for the grading scores was 0.74 (P<0.001). Conclusions: harmonic imaging enhances and improves the image quality of fetal echocardiography; and has important potential role in cardiac imaging in the fetus.  相似文献   

辫子monoidal范畴上MH的相关Hopf模     

颜美玲 《毕节学院学报》2007,25(4):17-20

设(H,σ)是余拟三角Hopf代数,则MH是辫子monoidal范畴MH上的相关Hopf模的基本结构定理是MH上的Hopf模的基本结构定理的推广。  相似文献   

从"基础学力"看基础教育和语文课程     

汪禄应 《天津师范大学学报(基础教育版)》2005,6(4):66-69

基础教育应站在人力资源开发战略的高度，着眼于人的终身发展，切实为每位学生的日后学习和发展奠定坚实而宽厚的基础。这一基础可以确认为以“基础学力”为发展基点的“基础教养”。在学生“基础学力”、“基础教养”的形成发展过程中，语文课程作为基础教育最为基础的核心课程，发挥着非同一般的“奠基性”作用。  相似文献   

心理语言学视角下的中式英语透视     

钟灵 《湖北广播电视大学学报》2008,28(8):114-115

中式英语在学习英语过程中是普遍存在的,它来源于母语汉语的影响,是一种符合语法规范的,却不符合地道的英语表达方式的、不能被本族语者接受的不规范的语言。如不正确认识它的形成原因,就会给英语语言习得造成一定障碍,并且阻碍跨文化交际的顺利实现。  相似文献   

基于词库与词法的分词不一致研究     

董宇  陈小荷 《浙江教育学院学报》2008,(3):96-102

分词不一致问题一直严重影响带标注语料库的标注质量,利用词库与词法知识,可以合理地阐释分词不一致产生的根源,并结合建立的规则库、组合型歧义库、固定词表和特殊单字词表,可以解决汉语分词语料库中相同结构类型的分词不一致问题。计算机利用这些知识较好地识别出了“大＋动词（单字）”“动补结构”和“颜色词＋物体名”,召回率在96％以上,精确率在95％以上,并能根据用户的要求统一处理成“分”或“合”的形式。  相似文献