Effect of body mass and midsole hardness on kinetic and perceptual variables during basketball landing manoeuvres

This study investigated the effects of body mass and shoe midsole hardness on kinetic and perceptual variables during the performance of three basketball movements: (1) the first and landing steps of layup, (2) shot-blocking landing and (3) drop landing. Thirty male basketball players, assigned into “heavy” (n = 15, mass 82.7 ± 4.3 kg) or “light” (n = 15, mass 63.1 ± 2.8 kg) groups, performed five trials of each movement in three identical shoes of varying midsole hardness (soft, medium, hard). Vertical ground reaction force (VGRF) during landing was sampled using multiple wooden-top force plates. Perceptual responses on five variables (forefoot cushioning, rearfoot cushioning, forefoot stability, rearfoot stability and overall comfort) were rated after each movement condition using a 150-mm Visual Analogue Scale (VAS). A mixed factorial analysis of variance (ANOVA) (Body Mass × Shoe) was applied to all kinetic and perceptual variables. During the first step of the layup, the loading rate associated with rearfoot contact was 40.7% higher in the “heavy” than “light” groups (P = .014) and 12.4% higher in hard compared with soft shoes (P = .011). Forefoot peak VGRF in a soft shoe was higher (P = .011) than in a hard shoe during shot-block landing. Both “heavy” and “light” groups preferred softer to harder shoes. Overall, body mass had little effect on kinetic or perceptual variables.     

Local responses to school‐based management in Hong Kong

This paper adopts a qualitative approach to study the perceptions of six secondary teachers from two schools with a similar background and history of school‐based management (SBM). The study aims to explore the views of the teachers in the following areas: changes in school administration and the structure of the school under SBM; changes in the role of teachers and the activities of the Parent–Teacher Associations; the challenges facing principals; and teachers' worries and concerns under SBM. The study is significant as it supplements the limited number of researches on the roles of teachers and principals under SBM in Hong Kong. As serving teachers now play increasingly important roles in schools and work closely with their principals in administrative and educational matters, they can provide invaluable insights into the new era of change.     

需求驱动采购的标准:美国NISO DDA的发展和作用

[目的/意义]探讨美国图书馆需求驱动采购（DDA）的标准化发展,介绍美国国家信息标准协会（NISO）出版的《图书的需求驱动采购推荐实施规范》（NISO DDA）,为中国图书馆DDA标准化建设提供参考。[方法/过程]通过文献考察,介绍NISO DDA产生的背景、规范的制定过程、规范的要素、作用以及NISO DDA应用中面临的挑战。[结果/结论]NISO DDA为DDA走向标准化和可持续发展奠定了基础。它对保护图书馆、出版商、经销商、电子图书数据库集成商等各利益相关者的利益,以及对各方在合作共赢的基础上规范化采纳推广DDA提供指南并起到积极的作用。同时,DDA的可持续发展继续面临着挑战。图书出版链中的各利益相关者仍然为DDA的可持续发展及标准化建设积极探索。     

Job Satisfaction and Withdrawal Cognition among Preservice Teachers

This study attempts to survey the different levels of job satisfaction among 350 preservice teachers who had experienced their first teaching practicum at the end of their first year of training. Four scales for job satisfaction (perception of the work environment, intrinsic reward, career prospects and career commitment) and a scale for withdrawal cognition were administered to the preservice teachers. A study of their attitude profiles revealed that a high proportion of the preservice teachers experienced negative feelings about various aspects of career prospects, particularly, salary and career advancement. In the area of career commitment, nearly 37% of the trainees felt that the teaching profession was not always their ambition. Despite the less‐than‐expected commitment level and perception of career prospects, trainees had positive feelings for the work environment and intrinsic reward for the profession in many aspects. A multiple‐regression model fitted to the data gave the result that perception of career prospects and career commitment were highly significant predictors of withdrawal cognition.     

The CCD Camera and Its Applications in Science Teaching

In this paper, we intend to illustrate some of the possible uses of the CCD camera in science teaching. We start with an introduction of the Flexcam which is one form of the CCD camera used primarily by biology teachers. We then explain the structure, working principles, and applications of the CCD camera at large. Examples of demonstrations, observations, and scientific skill using the CCD camera in connection with the TV monitor for topics under each of the main science subjects, biology, chemistry, physics and general science, in high school will be presented. Modifications needed in order to adopt the camera are elaborated in each case. Finally, a brief history of our adventure and some remarks are given to encourage readers to explore further uses of the CCD camera in one's own teaching.     

Reading comprehension,working memory and higher-level language skills in children with SLI and/or dyslexia

This study examined (1) whether working memory and higher-level languages skills—inferencing and comprehension monitoring—accounted for individual differences among Chinese children in Chinese reading comprehension, after controlling for age, Chinese word reading and oral language skills, and (2) whether children with specific language impairment (SLI) or dyslexia showed deficits in these skills. Eighty-two Cantonese Chinese-speaking children between the age of 7; 8–9; 5 were assessed. Regression analyses on the full sample offered support for the first question. The children were also classified into four groups: Typically-developing (TD; N = 34), specific language impairment-only (SLI-only; N = 18), SLI-dyslexia comorbid (SLI-D; N = 22) and dyslexia-only (D-only; N = 8). Pair-wise comparisons focusing on the second question revealed that both the SLI-only and the D-only group performed worse than the TD group in reading comprehension after controlling for age and nonverbal intelligence. The SLI-only and the D-only group showed a different profile of deficits: only the SLI-only group performed worse than the TD group in working memory, comprehension monitoring, and inferencing. The SLI-D comorbid group did worse than the SLI-only, but not the D-only group, in reading comprehension. The SLI-D comorbid group did not do worse than either single diagnosis group in the higher-level language skills associated with reading comprehension. These findings suggested adopting different intervention approaches for reading comprehension difficulties in children with SLI versus children with dyslexia.     

The role of morphological awareness in reading achievement among young Chinese-speaking English language learners: a longitudinal study

The present study examined the development of morphological awareness and its contribution to vocabulary and reading comprehension among young Chinese-speaking English language learners (ELLs). We focused on two aspects of morphological awareness: derivational awareness and compound awareness. Participants included 46 kindergarteners (younger cohort) and 34 first graders (older cohort) of Chinese descent in Canada at the beginning of the study. Children were administered a battery of English measures including derivational awareness, compound awareness, phonological awareness, receptive vocabulary, and reading comprehension at two time points spaced 1?year apart. Results demonstrated a steady growth in Chinese-speaking ELL children??s derivational and compound awareness from kindergarten to Grade 2. Importantly, for the first graders, morphological awareness accounted for unique variance in vocabulary concurrently, and unique variance in both vocabulary and reading comprehension a year later. Generally speaking, the variance explained by morphological awareness increased with grade level, and derivational awareness accounted for more variance in vocabulary and reading comprehension than did compound awareness. These results underscore the emerging importance of morphological awareness, especially derivational awareness, in young Chinese-speaking ELL children??s English reading development.     

“Let's Get Physical”: Advantages of a physical model over 3D computer models and textbooks in learning imaging anatomy

Three‐dimensional (3D) information plays an important part in medical and veterinary education. Appreciating complex 3D spatial relationships requires a strong foundational understanding of anatomy and mental 3D visualization skills. Novel learning resources have been introduced to anatomy training to achieve this. Objective evaluation of their comparative efficacies remains scarce in the literature. This study developed and evaluated the use of a physical model in demonstrating the complex spatial relationships of the equine foot. It was hypothesized that the newly developed physical model would be more effective for students to learn magnetic resonance imaging (MRI) anatomy of the foot than textbooks or computer‐based 3D models. Third year veterinary medicine students were randomly assigned to one of three teaching aid groups (physical model; textbooks; 3D computer model). The comparative efficacies of the three teaching aids were assessed through students' abilities to identify anatomical structures on MR images. Overall mean MRI assessment scores were significantly higher in students utilizing the physical model (86.39%) compared with students using textbooks (62.61%) and the 3D computer model (63.68%) (P < 0.001), with no significant difference between the textbook and 3D computer model groups (P = 0.685). Student feedback was also more positive in the physical model group compared with both the textbook and 3D computer model groups. Our results suggest that physical models may hold a significant advantage over alternative learning resources in enhancing visuospatial and 3D understanding of complex anatomical architecture, and that 3D computer models have significant limitations with regards to 3D learning. Anat Sci Educ 6: 216–224. © 2013 American Association of Anatomists.