Beyond intelligence: a meta-analytic review of the relationship among metacognition,intelligence, and academic performance

This meta-analytic study estimated the correlations among metacognition, intelligence, and academic performance. Metacognition is higher order cognition and one of the most significant predictors of academic performance. The purpose of this study was to examine the degree to which metacognition predicted academic performance when controlling for intelligence. The analysis of 149 samples from 118 articles revealed that, overall, metacognition weakly correlated with both academic performance and intelligence, and that these relationships were moderated by the type of measurement of metacognition. Furthermore, it was found that metacognition predicted academic performance when controlling for intelligence. Our findings indicate the importance of metacognition in educational practice and provide guidance for assessing metacognition in future research.     

21世纪人才培养教育课程

一、基本观点 1.准确地判断形势 (1)基于广阔的视野 21世纪,情报通讯技术和生命科学等的科学与技术以前所未有的速度迅速发展,直接联结于世界,情报瞬间即共有,是一个全球化日新月异的时代。以思考伦理道德问题为例,大从宏观宇宙问题着眼,小就微观克隆等遗传因子及细胞问题进行思考,迄今的规范概念和思考方式可以说是不充分、不适当的。     

Effects of material properties of cue on impact behaviour in follow and draw shots in billiards

The effective numerical method proposed by Shimamuraet al. (2007) is extended to predict the ball motion in a draw shot as well as a follow shot in billiards. The extended method is verified experimentally using a high speed camera. It is observed in the experiment that a ball rotates backwards with a lot of slip (between ball and table) at first and then rotates forwards in a draw shot. Such a ball motion is predicted quantitatively with the numerical method. Numerical simulations are performed to investigate the effects of material properties of a cue on ball behaviour in follow and draw shots and it is found that the impact force increases with increasing stiffness of the shaft in both follow and draw shots, while its duration time is shortened with increasing wave velocity in the shaft for both shots. It is also found that there is a certain shaft stiffness that gives the minimum ball centre velocity, the minimum angular velocity, the minimum slip velocity between ball and table and also the minimum time when the backward rotation changes to a forward one in a draw shot, while the ball centre velocity and the angular velocity increase with increasing shaft stiffness in a follow shot.     

The writing center and international students in a Japanese university: a language management perspective

ABSTRACT

One of the institutional challenges of taking in large numbers of international graduate students is supporting their academic literacy skills. To accommodate a large population of international students, Japanese universities offer various services to support their academic studies and life-related issues, such as hiring international student advisors, offering Japanese language courses, and implementing peer-support programs. As a type of academic support for writing for international students, writing centers have caught the attention of universities in the last decade. To examine the institutional role of the writing center at a Japanese university, this study employs a language management lens to compare the beliefs and interests among administrators, tutors, and international students in improving international students’ Japanese writing. Interviews with the three groups of participants displayed incongruences between the administrators’ interests aligned with institutional goals, the educational philosophy of the writing center, and international students’ language learning needs. The findings point to the tutors' crucial role as language specialists who inform organized language management, and the necessity for collaboration between academic support units and faculty members in providing sufficient academic socialization environments for international students.     

Book reviews

Scholarly Communication in China, Hong Kong, Japan, Korea and Taiwan Jingfeng Xia (Editor) Chandos Publishing, Oxford, 2008, 171 pp. ISBN 978‐1‐84334‐322‐6, £59.95, hbk     

New methods for compression of MP double array by compact management of suffixes

Minimal Prefix (MP) double array is an efficient data structure for a trie. However, its space efficiency is degraded by the non-compact management of suffixes. This paper presents three methods to compress the MP double array. The first two methods compress the MP double array by accommodating short suffixes inside the leaf nodes, and pruning leaf nodes corresponding to the end marker symbol. These methods achieve size reduction of up to 20%, making insertion and deletion faster at the same time while maintaining the retrieval time of O(1). The third method eliminates empty spaces in the array that holds suffixes, and improves the maximum size reduction further by about 5% at the cost of increased insertion time. Compared to a Ternary Search Tree, the key retrieval of the compressed MP double array is 50% faster and its size is 3–5 times smaller.     

A fast retrieving algorithm of hierarchical relationships using trie structures

Case structures are useful for natural language systems, such as word selection of machine translation systems, query understanding of natural language interfaces, meaning disambiguation of sentences and context analyses and so on. The case slot is generally constrained by hierarchical concepts because they are simple knowledge representations. With growing hierarchical structures, they are deeper and the number of concepts to be corresponded to one word increases. From these reasons, it takes a lot of cost to determine whether a concept for a given word is a sub-concept for concepting the case slot or not. This paper presents a faster method to determine the hierarchical relationships by using trie structures. The worst-case time complexity of determining relationships by the presented method could be remarkably improved for the one of linear (or sequential) searching, which depends on the number of concepts in the slot. From the simulation result, it is shown that the presented algorithm is 6 to 30 times faster than linear searching, while keeping the smaller size of tries.     

What determines knowledge sourcing from host locations of overseas R&D operations?: A study of global R&D activities of Japanese multinationals

What determines knowledge sourcing from host locations of overseas R&D operations? We investigate factors that influence the extent to which overseas R&D laboratories source knowledge from host locations. Drawing on both the capabilities perspective and the embeddedness perspective, we have developed a conceptual model and then examined it empirically focusing on overseas R&D labs of Japanese multinationals. Statistical findings from negative binomial regressions show that both technological capabilities of the lab and external embeddedness in the local scientific and engineering communities matter.     

Experimental evaluation of an on-demand multipath routing protocol for video transmission in mobile ad hoc networks

We propose an on-demand multiparth routing algorithm in a mobile ad hoc network for video transmission and evaluate its real world performance in video streaming application. There have been a number of multipath routing protocols extended from AODV which is a well-known single path routing protocol. Multipath routing protocols indicate good performance in the reduction of route discovery latency and unnecessary routing packets in simulations. We show that the route establishment using source route lists provided by us (Hu and Johnson, 2002) can reduce the route discovery latency, select stable routes automatically, and work well for live video streaming without limitation of the hop count based approaches. We evaluate this proposed method compared with the original AODV by using eight laptop PCs and demonstrate live streaming experiments.     

Effects of intense exercise on the physiological and mental condition of female university judoists during a training camp

To clarify the physical and mental fatigue caused by intense exercise and the relationship between the two types of fatigue, we examined changes in anthropometric and biochemical variables, neutrophil function, and the Profile of Mood States (POMS) questionnaire in 13 female university judoists attending a one-week training camp. Blood glucose, total cholesterol, haemoglobin, leukocyte count, IgG, and phagocytic activity all decreased after the training camp compared with baseline (P < or = 0.046). Aspartate aminotransferase, lactate dehydrogenase, creatine kinase, and neutrophil oxidative burst activity increased after the training camp (P < or = 0.007). Of the POMS scores, that for Fatigue increased after the training camp (P = 0.041) and that for Vigour decreased (P = 0.042). The changes in several POMS scores correlated with the changes in blood biochemical variables. In particular, the change in Total mood disturbance was negatively associated with changes in myogenic enzymes (P < or = 0.032). Our results suggest that intense exercise during training camps for female judoists leads to the appearance and accumulation of mental and physical fatigue, which are related to each other.