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Satoshi Shimizu 《国际体育史杂志》2014,31(6):601-617
Since the first Modern Olympics in 1896 only a few cities have hosted or will host the Summer Olympic and Paralympic Games more than once: London, Paris, Los Angeles, Athens and Tokyo. There is no doubt that the improvements in infrastructures and structural changes that were carried out for Tokyo in preparation for the 1964 Tokyo Olympics demonstrated that ‘Japan was experiencing remarkable economic growth’. The ‘development’ of Tokyo, 97% of the Olympic budget being earmarked for improvements to infrastructures, resulted in excessively centralised politics and economics. Looking at the bidding process to host the 2016 and 2020 Olympics, it can be seen that various expectations of sports are political in nature: from the political problem of remembering legacies as mere representations to the current situation of a nation basing its presence on involvement in the Olympics. The Sports Promotion Act enacted in 1961 was revised 50 years later, and policies on sport came to be regarded as national strategies. The new act became the basis for establishing the Sports Agency and specified governmental support for hosting the international sporting events it promotes. The time has come to seriously consider the necessity of critically arguing about nationalism, as well as how to determine the relationship between a nation and sport in terms of sport governance. 相似文献
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Tetsuo Shimizu M. Tsuchida K. Kawai K. Takahashi K. Arakawa M. Satoh 《Sports Engineering》2009,12(1):21-30
The B-matrix method, which systematically analyses the dynamic response of non-symmetric rigid bodies, such as golf putters, is described. The three-dimensional translational and rotational accelerations of the putter face are represented by linear equations of input forces and moments represented in matrix form. The elements of the 6 × 6 B-matrix physically represent the acceleration intensity factors. This method is applied to the analysis of the putter face control mechanism. The input forces and moments are obtained by the inverse dynamics method, whilst special attention is paid to the putter face rotation, i.e. the angular acceleration around the axis of the shaft, $ \dot{w}_{ox} . $ The contribution of input forces and moments on $ \dot{w}_{ox} $ is discussed quantitatively. The results demonstrate that $ \dot{w}_{ox} $ is present even if the input force and moment are applied perpendicularly to the shaft. A cancelling mechanism to correct this motion is discussed based on the B-matrix method. 相似文献
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Toshinori Yoshihara Takao Sugiura Nobuyuki Miyaji Yuki Yamamoto Tsubasa Shibaguchi Ryo Kakigi Hisashi Naito Katsumasa Goto Daijiro Ohmori Toshitada Yoshioka 《Journal of Zhejiang University. Science. B》2018,19(11):844-852
We examined the effect of a combination of astaxanthin (AX) supplementation, repeated heat stress, and intermittent reloading (IR) on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats (8-week-old) were divided into control, hind-limb unweighting (HU), IR during HU, IR with AX supplementation, IR with repeated heat stress (41.0–41.5 °C for 30 min), and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soleus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells. 相似文献
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Parental control of the personal domain and adolescent symptoms of psychopathology: a cross-national study in the United States and Japan 总被引：2，自引：0，他引：2
One hundred seventy U.S. (M=16.1 years) and 125 middle-class Japanese (M=16.6 years) adolescents completed a questionnaire assessing perceptions of who (adolescent or parent) controls the personal, conventional, prudential, and overlapping domain behaviors of the adolescent. Participants also completed an inventory assessing self-reported psychological symptoms. Adolescents in both countries indicated that they should have more say over personal issues and that parents should have more say over conventional and prudential issues. Self-reports of internalizing symptoms were positively correlated with amount of perceived control over personal issues for U.S. and Japanese students and for parental control over overlapping domain issues for Japanese students. There were no associations between parental control of conventional or prudential behaviors and psychological symptoms. 相似文献
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Kazuhiko Shimizu Masateru Baba Koji Shimada 《Assessment & Evaluation in Higher Education》2000,25(1):51-60
The aim of this paper is to explore the role of the JUAA in Japanese university evaluation, based upon its first progress evaluation. The underlying concept of university evaluation in Japan is a combination of self-monitoring and external valuation. It aims to move Japanese higher education systems from quantitative to qualitative development. There are many domains in university governance such as research, education, management, staff development, curriculum, admission policies, etc. This paper intends to examine how evaluation by the JUAA can provide incentive to improve them. 相似文献
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Yuki Takara 《Journal of Cultural Economics》2018,42(3):393-417
This study investigates the impact of cultural differences on trade decision and trade volume of cultural goods, using the data of traded music compact discs (CDs). According to ethnomusicological and civilization classifications, we classify countries into several groups and make novel variables that properly represent the cultural differences. We use the gravity model of trade proposed in Helpman et al. (The Quarterly Journal of Economics 123(2):441–487, 2008), which is utilized to avoid selection and endogeneity biases of estimation. In addition, we exploit an identifying assumption on the types of consumers, so that one of the cultural variables can satisfy the exclusion restriction in our two-stage estimation procedure. Our empirical hypothesis is that the trade volume of music is larger between two countries with greater cultural familiarity. The empirical results show that cultural differences have significant influences on the trading decision and volume of music traded in addition to the traditional determinants of trade. This finding supports our hypothesis that cultural familiarity promotes the cultural goods trade. 相似文献
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U. Rajendra Acharya Yuki Hagiwara Vidya K. Sudarshan Wai Yee Chan Kwan Hoong Ng 《Journal of Zhejiang University. Science. B》2018,19(1):6-24
Radiology (imaging) and imaging-guided interventions, which provide multi-parametric morphologic and functional information, are playing an increasingly significant role in precision medicine. Radiologists are trained to understand the imaging phenotypes, transcribe those observations (phenotypes) to correlate with underlying diseases and to characterize the images. However, in order to understand and characterize the molecular phenotype (to obtain genomic information) of solid heterogeneous tumours, the advanced sequencing of those tissues using biopsy is required. Thus, radiologists image the tissues from various views and angles in order to have the complete image phenotypes, thereby acquiring a huge amount of data. Deriving meaningful details from all these radiological data becomes challenging and raises the big data issues. Therefore, interest in the application of radiomics has been growing in recent years as it has the potential to provide significant interpretive and predictive information for decision support. Radiomics is a combination of conventional computer-aided diagnosis, deep learning methods, and human skills, and thus can be used for quantitative characterization of tumour phenotypes. This paper discusses the overview of radiomics workflow, the results of various radiomics-based studies conducted using various radiological images such as computed tomography (CT), magnetic resonance imaging (MRI), and positron-emission tomography (PET), the challenges we are facing, and the potential contribution of radiomics towards precision medicine. 相似文献