Avoiding the Issue of Gender in Japanese Science Education

This paper describes how the patriarchal structure of Japanese society and its notions of women, femininity, and gendered stereotypes produced strong cultural barriers to increasing the participation of females in science education. Baseline data on attitudes toward science and the perceptions of gender issues in science education, academic major and career choice were collected from 175 university students (124 female, 51 male). Students responded to a Likert scale that included the option “I don't understand the question”. All respondents took advantage of the option for items related to gender issues. On some items up to 67% of the males responded that they did not understand the question. Females in science choosing this option did not exceed 19%. In Japan, gender is an invisible, pervasive construct that impacts females' participation in science and science education. In other ways, attitudes toward science among Japanese students mirrored those found in the United States and in other countries. Respondents held the most favorable views of science when they were in elementary school and females preferred biology while males preferred the physical sciences. The exception to the Western pattern of liking science and science teachers is that male non-science majors rather than female non-science majors reported poor academic performance in elementary school, declining attitudes in middle school, and they held the most negative attitudes toward their science teacher and science subjects.     

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.     

Realistic considerations in solving problematic word problems: Do Japanese and Belgian children have the same difficulties?

The aim of this study was to compare Japanese and Belgian elementary school pupils' (lack of) activation of real-world knowledge during understanding and solving arithmetic word problems in a school context. The word problem test used in a study by Verschaffel, De Corte, and Lasure (1994) was collectively administered to 91 Japanese fifth graders. Besides standard problems which can be modeled in a straightforward way by one or two basic arithmetic operations with the given numbers, this test contained a series of problematic items which cannot be modeled and solved in such a way, at least if one seriously takes into account the realities of the context evoked by the problem statement. The results of the study revealed that Japanese pupils, similarly to Belgian children, have a strong tendency to neglect commonsense knowledge and realistic considerations during their solution of word problems. Moreover, a comparison of Japanese pupils with and without extra hints aimed at improving the disposition towards more realistic mathematical problem solving revealed that these extra hints had only a small effect.     

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.     

Peers’ perceptions of Japanese returnees

Many studies have examined the reentry process of Japanese children raised abroad. Results suggest that “feeling different” is a key factor in describing their experiences. These studies, however, were based only on self-reports of returnees. The current study examined returnees’ peers’ perceptions and the factors that affected them. Results indicated that the returnees’ peers’ perceptions could be summarized by two factors: “advantage” and “difference/disadvantage.” Those who had studied abroad and who had known many returnees had a balanced perspective of the returnee experience. Women were more likely to perceive advantages while those who were older were more likely to perceive differences/disadvantages.     

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     

Who is more influenced by customer equity drivers? A moderator analysis in a professional soccer context

Despite the recent progress in understanding consumer moderators, much of this work has focused on the satisfaction-behavioral intentions link. There is a lack of research regarding the potential moderating effects of consumer variables on the relationship between the three dimensions of customer equity (value, brand, and relationship equity) and behavioral intentions. Therefore, the purpose of this study is to examine how the effects of value, brand, and relationship equity on consumer behavioral intentions are enhanced by demographic (age and gender) and relational (season-ticket purchase) moderators. Furthermore, this study views brand equity as a psychological moderator and attempts to investigate the moderating effects of brand equity on the relationships between value equity, relationship equity, and behavioral intentions. Data were collected from spectators at a professional soccer event in Japan (n = 383). The results indicate that the effect of brand equity on behavioral intentions is positive and significant, while relationship equity has positive effects on both brand equity and behavioral intentions. A series of moderator analyses using the multi-group SEM method revealed that the influences of brand and relationship equity on behavioral intentions are stronger for younger consumers, men, and season-ticket holders than for older consumers, women, and non-season-ticket holders. Moreover, the moderator analyses verified that the effect of value equity on behavioral intentions was positive and significant only for those spectators belonging to the low brand equity categorization. The research findings, contributions, and directions for future research are discussed.     

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.