An introduction to Error-correcting Codes : by Shu Lin. 330 pages,diagrams, 6 x 9 in. Englewood Cliffs,N.J., Prentice-Hall, 1970. price, $12.95.     

David K. Chow 《Journal of The Franklin Institute》1972

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Communicating feedback in teaching practice supervision in a learning-oriented field experience assessment framework     

Sylvia Yee Fan Tang  Alice Wai Kwan Chow 《Teaching and Teacher Education》2007

This article seeks to understand the ways in which feedback was communicated in post-observation conferences in teaching practice supervision within the learning-oriented field experience assessment (LOFEA) framework. 32 post-observation conferences between 21 pairs of supervisors and participants of in-service teacher education programmes, and interviews with supervisors and participants were analyzed, with findings revealed in four themes:

1.

The distribution of content and nature of feedback in post-observation conferences;  相似文献   

Desiring TESOL and international education     

Lee-Tat Chow  Peidong Yang 《International Studies in Sociology of Education》2019,28(2):200-205

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Comparing the pre- and post-impact ball and racquet kinematics of elite tennis players' first and second serves: a preliminary study   总被引：1，自引：0，他引：1  

Chow JW  Carlton LG  Lim YT  Chae WS  Shim JH  Kuenster AF  Kokubun K 《Journal of sports sciences》2003,21(7):529-537

The aim of this study was to compare the pre- and post-impact three-dimensional kinematics of the ball and racquet during first and second serves performed by elite tennis players. Data were collected from four male and four female right-handed professional players during competition using two high-speed cameras (200 Hz). For each player, one first serve and one second serve from the 'deuce' or right service court that landed within the specified target area were analysed. To test for significant differences between the first and second serves, Wilcoxon tests (P < or = 0.05) were performed on selected parameters. The results indicate that the ball travelled forward and to the left during the flight phase of the toss in all but one trial. The average pre-impact ball forward location for the first serve was significantly more in front and had a higher associated forward ball velocity than the corresponding values for the second serve. On average, the decrease in post-impact ball speed from the first to the second serve was 24.1%. No significant differences between the first and second serves were found in the pre-impact racquet head speed and orientation, which was represented as a unit vector perpendicular to the racquet face. The major adjustments made by the players when going from the first to second serve were a decrease in pre-impact ball forward location (P < or = 0.01) and an increase in the pre-impact racquet vertical and lateral velocities (both P < or = 0.05). This implies that the players tossed the ball closer to the body and imparted topspin and sidespin on the ball by changing the racquet vertical and lateral velocities when going from the first to the second serve.  相似文献   

Online homework impact in undergraduate mathematics and business statistics courses     

Alan F. Chow 《Educational studies》2015,41(3):244-248

This evaluation examines the impact on student success rates related to changes in instructional programmes in undergraduate mathematics and statistics courses. Success for students taking courses with a computer-based homework component was compared with success of students who took the course in prior semesters without the computer-based component. Graphical and analytical tools are used to compare results. Results come from multiple semesters of each type of homework application, for both pre-calculus algebra and business statistics courses. Students whose performance is utilised in this study are undergraduate students taking introductory level college mathematics or business statistics courses, with mostly no prior instruction at this level. Comparing the success of the intervention group with the success of the baseline control group, findings support that the students using the computer-based homework instruction are just as successful as those using the traditional method of homework instruction. Utilising the online homework applications, provide several important advantages in today’s universities, including the reduced time for faculty grading, consistency of graded assignments across all sections of a course and most importantly, immediate feedback for students.  相似文献   

从植物化学成份的比较看单子叶植物的起源问题     

杨崇仁  周俊 《中国科学院研究生院学报》1978,16(1):1-9

  通过对单子叶植物和毛茛科以及”睡莲目”植物中生物碱、甾体化合物、三萜化合物、氰甙 和脂肪酸等五类化学成份的比较分析，作者认为毛茛科与百合目有着密切的亲缘关系，因而支 持单子叶植物毛茛—百合起源的主张，不赞同苏联学者Takhtajan关于单子叶植物莼菜—泽泻起源的观点。  相似文献   

Research engagement and educational decentralisation: problematising primary school English teachers’ research experiences in China     

Xuesong Gao  Gary Barkhuizen  Alice Wai Kwan Chow 《Educational studies》2011,37(2):207-219

Teachers are encouraged to enhance professional competence through reflective practice and they are also asked to undertake research to generate evidence for their professional practices. This paper reports on an inquiry into a group of primary school English language teachers’ research engagement in the province of Guangdong on the Chinese mainland. The inquiry explored the effect of educational reforms on the participants’ research engagement through the use of an open‐ended questionnaire and group interviews. The inquiry revealed that research engagement had become an important part of the teachers’ professional lives. Emerging findings from the inquiry also problematised their research engagement as it was found to have been undermined by a competitive promotion mechanism, the teachers’ conceptualisations of research and challenges in the knowledge dissemination process. The paper ends with reflections on how to make teacher research “educational” for teachers and serve as an effective way for professional development.  相似文献   

Use of deterministic models in sports and exercise biomechanics research     

Chow JW  Knudson DV 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(3):219-233

A deterministic model is a modeling paradigm that determines the relationships between a movement outcome measure and the biomechanical factors that produce such a measure. This review provides an overview of the use of deterministic models in biomechanics research, a historical summary of this research, and an analysis of the advantages and disadvantages of using deterministic models. The deterministic model approach has been utilized in technique analysis over the last three decades, especially in swimming, athletics field events, and gymnastics. In addition to their applications in sports and exercise biomechanics, deterministic models have been applied successfully in research on selected motor skills. The advantage of the deterministic model approach is that it helps to avoid selecting performance or injury variables arbitrarily and to provide the necessary theoretical basis for examining the relative importance of various factors that influence the outcome of a movement task. Several disadvantages of deterministic models, such as the use of subjective measures for the performance outcome, were discussed. It is recommended that exercise and sports biomechanics scholars should consider using deterministic models to help identify meaningful dependent variables in their studies.  相似文献   

A Systematic Review of Sequential Multiple-Assignment Randomized Trials in Educational Research     

Chow  Jason C.  Hampton  Lauren H. 《Educational Psychology Review》2022,34(3):1343-1369

Educational Psychology Review - The purpose of this systematic review is to describe the state of the art of sequential multiple-assignment randomized trials in education research. An iterative,...  相似文献   

A novel scale to assess resistance-exercise effort     

DA Hackett  NA Johnson  M Halaki  CM Chow 《Journal of sports sciences》2012,30(13):1405-1413

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