Impulsive force on the head during performance of typical ukemi techniques following different judo throws

In this study, eight judo athletes who are major candidates for the Japan national team were recruited as participants. Kinematic analysis of exemplary ukemi techniques was carried out using two throws, o-soto-gari, a throw linked to frequent injury, and o-uchi-gari. The aim of this study was to kinematically quantify the timing patterns of exemplary ukemi techniques and to obtain kinematic information of the head, in a sequence of ukemi from the onset of the throw to the completion of ukemi. The results indicated that the vertical velocity with which the uke’s head decelerated was reduced by increasing the body surface exposed to the collision with the tatami and by increasing the elapsed time. In particular, overall upper limb contact with the tatami is greatly associated with deceleration. In o-soto-gari, the impulsive force on the faller’s head as the head reached the lowest point was 204.82 ± 19.95 kg m · s^–2 while in o-uchi-gari it was 118.46 ± 63.62 kg m · s^–2, z = ?1.75, P = 0.08, and it did present a large-sized effect with r = 0.78. These findings indicate that the exemplary o-soto-gari as compared to o-uchi-gari is the technique that causes more significant damage to the uke’s head.     

Global R&D activities of Japanese MNCs in the US: A triangulation approach

We examined 79 Japanese MNCs’ R&D subsidiaries in the US from the knowledge-based view. We found: (1) subsidiaries’ R&D strategies generally encouraged knowledge flows; (2) subsidiaries’ R&D alliances promoted knowledge flows; (3) R&D subsidiaries with process-oriented incentives promoted vertical knowledge flows; (3) autonomous R&D subsidiaries promoted knowledge flows from the local environments to the subsidiary; (4) R&D subsidiaries with a high level of knowledge flows accumulated a high level of knowledge; and (5) R&D subsidiaries with a high level of accumulated knowledge achieved high overall performance. Our interviews with 30 R&D subsidiaries and 10 parent companies supplement these findings.     

What determines overseas R&D activities? The case of Japanese multinational firms

This paper explores what factors determine the nature, extent, and location of Japanese multinationals’ R&D activities abroad. Taking advantage of a rich micro-level dataset from the survey on Japanese overseas subsidiaries, the study distinguishes between two types of overseas R&D: basic/applied research and development/design. We find several differences between the determinants of those R&D activities. These differences confirm the view that basic/applied research of overseas subsidiaries aims at the exploitation of foreign advanced knowledge, whereas their development/design activities are mostly influenced by the market size of the host country. Our results provide a convincing and comprehensive explanation of the geographical distribution of overseas R&D by Japanese MNEs.     

Walking-friendly built environments and objectively measured physical function in older adults

BackgroundFew studies have examined the associations between urban design attributes and older adults’ physical function. Especially, it is not well known how built-environment attributes may influence physical function in Asian cities. The aim of this study was to examine associations between objectively measured environmental attributes of walkability and objectively assessed physical function in a sample of Japanese older adults.MethodsCross-sectional data collected in 2013 from 314 older residents (aged 65–84 years) living in Japan were used. Physical function was estimated from objectively measured upper- and lower-body function, mobility, and balance by a trained research team member. A comprehensive list of built-environment attributes, including population density, availability of destinations, intersection density, and distance to the nearest public transport station, were objectively calculated. Walk Score as a composite measure of neighborhood walkability was also obtained.ResultsAmong men, higher population density, availability of destinations, and intersection density were significantly associated with better physical function performance (1-legged stance with eyes open). Higher Walk Score was also marginally associated with better physical function performance (1-legged stance with eyes open). None of the environmental attributes were associated with physical function in elderly women.ConclusionOur findings indicate that environmental attributes of walkability are associated with the physical function of elderly men in the context of Asia. Walking-friendly neighborhoods can not only promote older adults’ active behaviors but can also support their physical function.     

Contrasting experiences in Japanese returnee adjustment: Those who adjust easily and those who do not

This study examined how returnees who experienced more adjustment difficulties (Bumpies) differed from those who experienced fewer (Smoothies). Three open-ended items from 512 returnees¹ were analyzed. Ward et al.’s [Ward, C., Bochner, S., & Furnham, A. (2001). The psychology of culture shock. East Sussex: Routledge] adjustment model was used as the theoretical framework for this study.Prior to examining the open-ended items, preliminary analyses were conducted to confirm that these two groups, in fact, differed from each other in their returnee experience. Results suggested that one function, which we named “Lack of Acceptance,” differentiated the two groups; Smoothies felt more accepted by others compared to Bumpies.In the next stage, the open-ended questions related to the items that loaded significantly on the function identified by the discriminant analysis were coded and analyzed. Results suggested that the two groups’ experiences were similar in some respects (e.g., being stereotyped as a returnee, language-related problems) and different in others (e.g., Smoothies felt more accepted by others compared to Bumpies, Bumpies reported more incidents of discrimination and bullying). Results underscored Ward et al.’s [Ward, C., Bochner, S., & Furnham, A. (2001). The psychology of culture shock. East Sussex: Routledge] assertion that adjustment is a result of a two-way interaction between individual and societal variables.     

Multilingual phrase-based concordance generation in real-time

We present software that generates phrase-based concordances in real-time based on Internet searching. When a user enters a string of words for which he wants to find concordances, the system sends this string as a query to a search engine and obtains search results for the string. The concordances are extracted by performing statistical analysis on search results and then fed back to the user. Unlike existing tools, this concordance consultation tool is language-independent, so concordances can be obtained even in a language for which there are no well-established analytical methods. Our evaluation has revealed that concordances can be obtained more effectively than by only using a search engine directly.

Reliability of a commercially available and algorithm-based kinetic analysis software compared to manual-based software

There is a need for reliable analysis techniques for kinetic data for coaches and sport scientists who employ athlete monitoring practices. The purpose of the study was: (1) to determine intra- and inter-rater reliability within a manual-based kinetic analysis program; and (2) to determine test-retest reliability of an algorithm-based kinetic analysis program. Five independent raters used a manual analysis program to analyse 100 isometric mid-thigh pull (IMTP) trials obtained from previously collected data. Each trial was analysed three times. The same IMTP trials were analysed using an algorithm-based analysis software. Variables measured were peak force, rate of force development from 0 to 50 ms (RFD50) and RFD from 0 to 200 ms (RFD200). Intraclass correlation coefficients (ICC) and coefficient of variation (CV) were used to assess intra- and inter-rater reliability. Nearly perfect reliability was observed for the manual-based (ICC > 0.92). However, poor intra- and inter-rater CV was observed for RFD (CV > 16.25% and CV > 32.27%, respectively). The algorithm-based method resulted in perfect reliability in all measurements (ICC = 1.0, CV = 0%). While manual methods of kinetic analysis may provide sufficient reliability, the perfect reliability observed within the algorithm-based method in the current study suggest it is a superior method for use in athlete monitoring programs.     

Directory of graduate education departments in the eastern region

This essay is an attempt to investigate and discuss the significance and validity of researching Buddhist preaching as the main undercurrent of Japanese rhetorical communication practices. The argument first points out contemporary rhetoricians' weaknesses in research, and proceeds to discuss the importance of viewing preaching as a form of rhetorical communication. It then describes historical backgrounds of Japanese Buddhist preaching, and finally analyzes the preaching principles in comparison with the five canons of Western rhetoric, stressing the value of studying Buddhist preaching from the rhetorical perspective.     

The optimal object posture that minimizes contact forces in grasping

Because of the ill-posedness of grasping, one feasible method must be selected from possible strategies. Among many factors, this paper focuses on the posture of an object: which object direction is best when it is grasped. Then, the object is assumed to be held with three points where the contact forces can be generated in any directions. To evaluate the object posture, the norm of contact force vector consisting of the normal and tangential forces is selected. Consequently, the contact force becomes minimal when the center of mass of the grasped object and the centroid of the triangle composed by three contact points are aligned in the gravitational direction.