In tennis, service requires a variety of complicated movements. Given the importance of taking the initiative to obtain points in a tennis match, it is crucial to make full use of speed and spin rate of service. Generally, a service that requires a higher spin rate would slow down, and a service that has increased speed would have a decreased spin rate. For players who are disadvantaged in height, although controlling spin rate is essential, slowing down service speed should be (...) avoided. For these players, the challenge of service is to improve the speed without decreasing the spin rate. Players must also be trained to build physical strength required for this skill. It is not uncommon to work on physical training without a racket; however, few studies have reported on the effects of cultivated physical strength on on-court tennis performance. Therefore, this study aimed to propose physical measurements that could be used as indices to improve service performance in 58 elite Japanese junior male players. To test service performance, we used TrackMan tennis radar device to assess speed, spin rate, impact height, and impact depth. To test physical strength, we measured 5- and 20-m sprint, broad jump, medicine ball throw. We used a significant multiple regression equation to predict the first service speed obtained from the broad jump and the Medicine ball throw. Additionally, a strong correlation was obtained between the predicted and measured values. In addition to physical strength, we suggest that the depth of the impact point is important for improving the first service speed. However, we were not able to identify the physical strength test items that improve service spin rate. Other item should be examined in the future to determine the physical strength associated with spin rate. This result could help connect physical training and service performance. (shrink)

The article delineates how actors invoke nationalizing accounts—accounts that turn local conditions, actions, and actors into national ones—in everyday talk. Taking the case of Japanese university scientists depicting their commercialization trajectories after the adoption of a set of policies that originated from the U.S., the article delineates how scientists stipulate what they do is Japanese. I outline the discursive practices through which they posit that the cause of others’ actions, or of they themselves, derives from some kind of ethno-national distinctiveness. (...) Interviews show how such nationalizing accounts were made through the inevitable gaps between local practices and formal global structures. Scientific and commercialization practices in Japan that deviated from the original form were explained not only through the institutional differences between the U.S. and Japan, but also through lay categories of “culture,” ethno-psychology, and readily available tropes about Japanese history. In such nationalizing accounts, what the Japanese scientists did under these new, and explicitly global policies, was argued to be fundamentally Japanese because they were rooted in and caused by the ethno-national character. As new institutional theory suggests, a decoupling between formal rules and local contingencies is a hallmark of any institution. The article further shows that such decoupling could then be used as a resource for everyday nationalism. At least in some cases, the global adoption and the localization of a global form may create an opportunity to enact the nation, contributing to a discourse that posits that an imagined community is distinct and special, precisely as the world becomes more globalized. (shrink)

トリアージ、ワクチンの分配、ゲノム編集、さらに倫理、思想、文学、政治社会まで、様々な領域の喫緊の問題として「尊厳」を論じる。.

Although modern civilization has brought about great technical achievement, mankind face various problems today. It seems that humans are endlessly pursuing economic development, and they often neglect the preservation of the environment. Japan is not free from this world-wide problem. However, Japanese civilization would be able to offer an important paradigm for the future course of mankind. In particular, animism and tolerance towards religious differences seem to be vital elements for the betterment of this world.

科学が自然を破壊した今、人間は人工的に反人工的な自然を保持するべく努力しなければなりません。科学技術は、この逆説に耐え抜かねばならないのでしょう。.

The aim of this presentation is to show that philosophy of education must seriously engage itself with horizons of education. After a brief explanation of the term “horizon”, the horizon of modern pedagogy, which was inaugurated by Pestalozzi and Herbart, is examined. Modern pedagogy with its special emphasis on method unravels itself as one of the major streams of modern epistemology, for which inspection of inner ideas is crucial. The modern epistemology, on the other hand, presupposes the atomistic self represented (...) by the Lockian dark room. This is the horizon of modern pedagogy. One of the deficiencies of this horizon is that it is not capable of articulating the educational aim on its own terms. Thus, dealing with the aim of education, modern pedagogy was obliged to use terms such as God or Nature, the terms, of which philosophical origin goes back to the Cave metaphor of Plato. This takes us to the second part of the presentation: the examination of the Cave metaphor in order to unravel the horizon of the classical education, paideia. The comparison of the two horizons will show the importance of horizon, about which philosophy of education must be sensitive. (shrink)

This paper explores the perceptual space of Thomas A. Clark’s poetry and its links with the long and influential Western literary and artistic traditions of walking in the landscape, from Romanticism to Land Art. Particular attention will be given to the relations that Clark establishes in his writing between walking as a bodily practice and the multi-sensory engagement with the landscape it provides. It will be shown that Clark’s most significant contribution to the literature of walking lies in the balance (...) he creates between movement and stillness. In this dynamics, walking is envisaged as means of contemplation and communion to be found within the body, but which is at the same time directed towards the world, and the landscape appears as an infinite variety of perspectival views and as a dynamic process of discovery. (shrink)

Kyosei, a traditional Japanese concept, has been applied to a variety subjects, from biology to business. It has more recently become synonymous with the concepts of corporate responsibility, ethical decision making, stakeholder maximization, and responsible reciprocity. The purpose of this paper is to trace kyosei's modern business application back to ancient Confucian thought. The ideals associated with Confucianism were instrumental in the creation of Japanese business codes of ethics during the early part of the seventeenth century. A short history of (...) this period is presented to provide a contextual framework for understanding these codes. A specific code of ethics, called the shuchu kiyaku, is presented for the first time in English and shown to have direct roots in Confucian writings. Statements from modern company codes and from modern Japanese and American businessmen are presented to reflect the philosophy of business embodied in that ancient code of ethics. (shrink)

日本の戦後思想の核心とは、圧倒的な外来思想への、自己の戦争体験と近代日本の露わになった後進性を手がかりにした、ポストコロニアルな抵抗にある。非西洋世界が近代化にむけた苦闘にあるこのとき、日本の戦後思想 は、どのような可能性をもつのか。「リスク近代」の果てにせり上がってきた、世界が抱え込む「有限性」という概念を手がかりに、21世紀世界の思想的課題と、未来構想の可能性を問う。.

Ruyu HungNational Chiayi University, TaiwanThis is a collective writing experiment of PESA members, orchestrating the Philosophy of Education in a New Key regarding East Asia. In 2016 the pioneerin...

ObjectiveTo assess distracted attention and performance on a computer task following completion of a sustained attention and acute media multitasking task among adolescents with varying self-reported usual media multitasking.MethodsNinety-six 13- to 17-year-olds played the video game Tetris following completion of a Go/No-go paradigm to measure sustained attention in the presence of distractors, an acute media multitasking, or a passive viewing condition. Adolescents completed the conditions on separate visits in randomized order. Sustained attention was measured within the Go/No-go task by measuring (...) errors of omission. Distracted attention while playing the Tetris task was measured by computing eye tracking measures of attention to irrelevant distractor images that bordered the Tetris game. Participants also self-reported their daily media multitasking.ResultsThe Go/No-go task revealed important qualitative differences in sustained attention among low and high usual media multitaskers. There was a uniform improvement in sustained attention among low usual media multitaskers, demonstrated by a consistent linear decrease in omission errors. Among high usual media multitaskers, there was initially a decrease in sustained attention followed by an increase. Completing the Go/No-go task also statistically significantly reduced distractibility and increased performance while playing Tetris compared to the passive viewing condition, but only among those with low usual media multitasking. There was a non-statistically significant trend that completing the acute media multitask increased subsequent distractibility and performance while playing Tetris among high media multitaskers.ConclusionIn this sample of adolescents, practicing a sustained attention task reduces distractibility and improves task performance among those who have low levels of usual media multitasking. (shrink)