民族传统体育对抗类项目视频分析与智能诊断系统研究*     

李春木  连〓迅 《广州体育学院学报》2016,(1):52-56

当前民族传统体育对抗类项目训练分析主要是以教练员主观经验判断为主,缺乏客观性和时效性.本研究搭建了一个ARM+ DSP+ CPLD技术框架平台,采用视频图像智能分析与处理技术对运动员的训练及比赛实况进行实时记录和智能诊断,得出可供教练员与运动员参考的处理结果,达到提高训练效率,提高比赛成绩的目的.  相似文献   

北京市男子大学生足球运动员运动损伤特征与风险因素筛查     

吴放  陈效科 《北京体育大学学报》2017,40(7):56-62

摘要：目的：掌握北京市男子大学生足球运动员运动损伤的流行情况，对导致运动损伤发生的风险因素进行筛查，为进一步预防男子大学生足球运动损伤的发生提供依据。方法：应用方便分层抽样的方法，对参加北京市男子大学生足球联赛甲、乙、丙组的14所高校249名在校大学生足球运动员的损伤情况进行调查，应用T检验、单因素χ2检验与二元非条件logistic回归模型进行分析。结果与结论：充分了解了北京市男子大学生足球运动员的运动损伤现状和特征；筛查出为运动损伤发生的主要的风险因素；错误的技术动作、对手的粗野动作导致损伤发生的主要诱发事件。  相似文献   

Beliefs of teachers in Italian schools concerning the inclusion of disabled students: a Q‐sort analysis     

Franco Zambelli  Raffaele Bonni 《欧洲特需教育杂志》2013,28(3):351-366

This paper presents a course of research into the beliefs of class teachers concerning the scholastic integration of children with disabilities. In the current situation in Italy, due to limited specialist training, the attitudes that teachers develop can constitute an obstacle to the full realization of scholastic integration. Of the 23 teachers who took part in the study, conducted using the Q‐sort methodology, some had direct experience with scholastic integration (with opinions both positive and negative); and others had no direct experience (but also had both positive and negative opinions). Using the Q‐sort system, the paper sets out to verify whether effectively the simple manifestation of positive or negative beliefs in relation to inclusion on the part of the teachers (whether they had direct experience or not) could be confirmed, and whether it lent itself to being developed in reference to specific areas of scholastic experience. From the factorial analysis of the Q‐data, four factors emerged that confirm our hypothesis regarding the existence of different beliefs among teachers.  相似文献   

Talking about the test. Boundary work in primary school teachers' interactions around national testing of student performance     

《Teaching and Teacher Education》2013

There is currently a strong belief in accountability as a policy of action and standardized testing has been implemented in several countries. This article examines tensions that occur in meetings when primary school teachers in Norway discuss national testing, and how these are handled. In particular, tensions revolve around what is seen as internal (teachers' everyday work) and external (policies and practices outside the main frame of teaching). Even though national testing is mainly seen as external to teachers' work, teachers involve in boundary work and reshape professional discourse in order to create relevance and maintain legitimacy following new expectations.  相似文献   

Evaluating the Comparability of Paper‐ and Computer‐Based Science Tests Across Sex and SES Subgroups     

Jennifer Randall  Stephen Sireci  Xueming Li  Leah Kaira 《Educational Measurement》2012,31(4):2-12

As access and reliance on technology continue to increase, so does the use of computerized testing for admissions, licensure/certification, and accountability exams. Nonetheless, full computer‐based test (CBT) implementation can be difficult due to limited resources. As a result, some testing programs offer both CBT and paper‐based test (PBT) administration formats. In such situations, evidence that scores obtained from different formats are comparable must be gathered. In this study, we illustrate how contemporary statistical methods can be used to provide evidence regarding the comparability of CBT and PBT scores at the total test score and item levels. Specifically, we looked at the invariance of test structure and item functioning across test administration mode across subgroups of students defined by SES and sex. Multiple replications of both confirmatory factor analysis and Rasch differential item functioning analyses were used to assess invariance at the factorial and item levels. Results revealed a unidimensional construct with moderate statistical support for strong factorial‐level invariance across SES subgroups, and moderate support of invariance across sex. Issues involved in applying these analyses to future evaluations of the comparability of scores from different versions of a test are discussed.  相似文献   

美剧《越狱》对白语用分析     

潘国豪 《江西师范大学学报(哲学社会科学版)》2010,43(3):136-139

《越狱》是美国福克斯电视台于2005年推出的剧情类连续剧。该剧成功地展示了影视剧作叙事艺术的精髓。剧内对白为语用研究提供了丰富的语料，借助合作原则的理论对这些语料进行研究，不仅可以探索影视语言的语用与修辞特色，还有助于理解角色的成长以及进一步探究剧情矛盾发展的特征。  相似文献   

Application of the Levenshtein Distance Metric for the Construction of Longitudinal Data Files     

Harold C. Doran  Paul B. Van Wamelen 《Educational Measurement》2010,29(2):13-23

The analysis of longitudinal data in education is becoming more prevalent given the nature of testing systems constructed for No Child Left Behind Act (NCLB). However, constructing the longitudinal data files remains a significant challenge. Students move into new schools, but in many cases the unique identifiers (ID) that should remain constant for each student change. As a result, different students frequently share the same ID, and merging records for an ID that is erroneously assigned to different students clearly becomes problematic. In small data sets, quality assurance of the merge can proceed through human reviews of the data to ensure all merged records are properly joined. However, in data sets with hundreds of thousands of cases, quality assurance via human review is impossible. While the record linkage literature has many applications in other disciplines, the educational measurement literature lacks details of formal protocols that can be used for quality assurance procedures for longitudinal data files. This article presents an empirical quality assurance procedure that may be used to verify the integrity of the merges performed for longitudinal analysis. We also discuss possible extensions that would permit merges to occur even when unique identifiers are not available.  相似文献   

三维形态在平面设计中的应用分析   总被引：1，自引：0，他引：1  

孙晓洁 《佳木斯教育学院学报》2013,(11)

随着当今社会中经济和科技文化的快速发展,人们生活的各个领域都得到了相应的拓展,而人们物质与精神文化需求的提高,也使得单纯的二维形态对事物的表现形式已经远不能满足人们的生活。在三维空间中,事物的表现形式也逐渐发展起来,本文便是通过对三维形态的概念介绍及特征分析讲述了其在平面设计中的应用。  相似文献   

Errors in Junior English Writing:Resources and Strategies     

XU Shu-ling 《海外英语》2013,(9)

The research on the common errors in junior English writings reflects the categories of errors, resources of errors, and how to do with errors in effective ways. Errors are divided into two types:intra...  相似文献   

Researching educational policy and change in ‘new times’: using critical discourse analysis     

Sandra Taylor 《教育政策杂志》2013,28(4):433-451

A number of writers have drawn attention to the increasing importance of language in social life in ‘new times’ and Fairclough has referred to ‘discourse driven’ social change. These conditions have led to an increase in the use of various forms of discourse analysis in policy analysis. This paper explores the possibilities of using Critical Discourse Analysis (CDA) in critical policy research in education, drawing on a larger research project which is investigating the equity implications of Education Queensland’s reform agenda. It is argued that, in the context of new times, CDA is of particular value in documenting multiple and competing discourses in policy texts, in highlighting marginalized and hybrid discourses, and in documenting discursive shifts in policy implementation processes. The last part of the paper discusses how such research might be used by policy activists inside and outside education department bureaucracies to further social democratic goals.  相似文献