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)

Sustained peripheral somatosensory stimulations, such as high-frequency repetitive somatosensory stimulation (HF-RSS) and vibrated stimulation, are effective in altering the balance between excitation and inhibition in the somatosensory cortex (S1) and motor cortex (M1). A recent study reported that whole-hand water flow (WF) stimulation induced neural disinhibition in the M1. Based on previous results, we hypothesized that whole-hand WF stimulation would lead to neural disinhibition in the S1 because there is a strong neural connection between M1 and S1 and aimed to (...) examine whether whole-hand WF stimulation would change the neural balance between excitation and inhibition in the S1. Nineteen healthy volunteers were studied by measuring excitation and inhibition in the S1 before and after each of the four 15-min interventions. The excitation and inhibition in the S1 were assessed using somatosensory evoked potentials (SEPs) and paired-pulse inhibition (PPI) induced by single- and paired-pulse stimulations, respectively. The four interventions were as follows: control, whole-hand water immersion, whole-hand WF, and HF-RSS. The results showed no significant changes in SEPs and PPI following any intervention. However, changes in PPI with an interstimulus interval (ISI) of 30 ms were significantly correlated with the baseline value before whole-hand WF. Thus, the present findings indicated that the whole-hand WF stimulation had a greater decreased neural inhibition in participants with higher neural inhibition in the S1 at baseline. Considering previous results on M1, the present results possibly show that S1 has lower plasticity than M1 and that the duration (15 min) of each intervention may not have been enough to alter the balance of excitation and inhibition in the S1. (shrink)

La rupture entre ce qui est vivant ou naturel et ce qui ne l’est pas est beaucoup moins marquée dans la culture japonaise qu’elle ne l’est dans la culture occidentale – ou du moins, elle n’est pas marquée de la même manière et du même poids. En m’inspirant en partie de la pratique que l’on trouve au cimetière de Koya-san, qui consiste à donner une tombe à des objets inanimés – voiture, fusée, pompe à eau – je m’interroge sur (...) ce que cette distinction signifie pour la robotique sociale. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Awesome Nightfall: The Life, Times, and Poetry of SaigyōMichiko YusaAwesome Nightfall: The Life, Times, and Poetry of Saigyō. By William R. LaFleur. Boston: Wisdom Publications, 2003. Pp. ix + 173. Paper $14.95.A quarter of a century ago William LaFleur published his book on Saigyō, Mirror for the Moon, which the present work, Awesome Nightfall: The Life, Times, and Poetry of Saigyō, thoughtfully and masterfully supersedes. In this connection (...) I may mention the philosopher, Nishida Kitarō, whose Zen no kenkyū (An inquiry into the good) was reprinted in 1936, twenty-five years after its first publication. On that occasion Nishida, deeply moved by the thought that his earliest work was still being read, expressed his sentiment by quoting the last two lines of one of Saigyō's poems: [End Page 270]Toshitaketemata koyubeshitoomoikiyaInochi narikeriSaya no NakayamaDid I ever imagineIn my advanced ageI should cross once againThis mountain pass of Saya-no-Nakayama?Ah, it is all thanks to having lived a long life!1(Saigyō composed this poem on going for the second time to Mutsu, the northern region of Japan, forty-two years after his first visit there.)As LaFleur notes, a number of important works on Saigyō's life and his times have been published in Japan in the last two decades, which these offer us more complete sketches of his life and allow an appreciation of his poetry to a greater depth. In the first part of the book, "The Life and Times of Saigyō," the author succinctly incorporates many of these findings and relates Saigyō's poems both to historical events and to his personal life experience (pp. 1-70). The second half of the book contains LaFleur's translation of over 150 poems by Saigyō, all of which appear to be taken from his earlier book (pp. 73-152).LaFleur shows how Saigyō's life (1118-1190) was closely linked to the historical context. The time was fast changing from the insei system (political administration run by the court of the retired emperor) to the Hōgen and Heiji Disturbances, the fierce power struggle between the Taira and the Minamoto military clans, with the dramatic demise of the former and the end of the Heian period. Saigyō's path crossed with such eminent political figures as Taira no Kiyomori in 1172 and Minamoto no Yoritomo in 1186. By juxtaposing historical events with Saigyō's poems, which often bear headnotes describing the circumstances under which he composed them, a full-fledged biography of Saigyō promises to be in the offing.In the present work, LaFleur sketches Saigyō's life in bold strokes and introduces new findings for the English-reading audience, such as the homoeroticism that dominated the court of the retired Emperor Toba (1103-1156)—although Saigyō himself does not appear to have been a member of this coterie.2 LaFleur also draws our attention to the fact that Saigyō practiced religious austerities at Mt. Kōya and Ōmine (pp. 20-21). Going beyond a rather two-dimensional image of Saigyō as a nature-loving poet of the moon and the flowers, the present study presents a picture of a man caught in an impossible love affair; a highly skilled equestrian, archer, and kemari (a sort of kickball) player; and a man who caused a sensation by renouncing the world at the young age of twenty-three despite his promising career as an imperial guard. Saigyō's mental and physical strength, honed by his mountain asceticism, no doubt was essential in his making extensive journeys far and wide. We also see that the distance Saigyō created from the political arena by becoming a monk gave him a keener eye to assess the fundamental political changes that were then taking [End Page 271] place. The full import of his poems, dealing with warfare, emperors, and the court, cannot be understood when separated from the political events of the day, although Saigyō himself maintained his cool objectivity and distanced himself from them.The tantalizing speculation that Saigyō was infatuated with Empress Taikenmon'in, Emperor Toba's consort and Emperor Sutoku's mother, is highly probable... (shrink)