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Kitakyushu, Japan

Kyushu Kyoritsu University is a private university in Kitakyushu, Fukuoka, Japan, established in 1965. Wikipedia.

Nishida M.,Kyushu Kyoritsu University | Yoshimitsu H.,Sojo University
Chemical and Pharmaceutical Bulletin | Year: 2011

Three new 15-hydroxy-trinor type (1-3), a new tetranor type (4), and two new 3,15,23,24-tetrahydroxy-16-oxo type cycloartane glycosides (5, 6) were isolated from the rhizome of Cimicifuga heracleifolia KOMAROV. Their structures were determined by the use of the 2D-NMR techniques and chemical evidence. © 2011 Pharmaceutical Society of Japan. Source

Oshita K.,Kyushu Kyoritsu University | Yano S.,Kobe University
Open Biomedical Engineering Journal | Year: 2015

The purpose of the current study was to investigate the effect of lightly gripping a cane on the Functional Reach Test (FRT) to evaluate dynamic balance. 21 healthy men (19±1 years) were asked to perform the FRT three times. The standard FRT was performed in the first and third trials. In the second trial, participants in a light-grip group (n = 11) were told to lightly grip (but to not apply force for mechanical support) the cane during the FRT. Participants in a dependon- cane group (n = 10) were told to perform the FRT while supporting their weight with the cane. FRT is improved by not only supporting a person’s own weight with a cane but also just lightly gripping the cane. These findings would be helpful in the development of a useful application to improve the human movement using a haptic sensory supplementation for activities of daily living. © Oshita and Yano. Source

Goto H.,Kyushu Kyoritsu University | Morris J.G.,Nottingham Trent University | Nevill M.E.,Nottingham Trent University
Journal of Sports Sciences | Year: 2015

Abstract: This study examined (1) the distances and speeds covered during match play for U11 to U16 English Premier League Academy players, (2) the differences in match performance between retained and released players and (3) the effect of calculating speed zones in different ways when analysing match performance. Eighty-one academy outfield players (10–16 years old), competing in 11-a-side matches, were analysed using a 1-Hz global positioning system with three speed zones (absolute, squad and individual). Pitch dimensions were 78.7 × 54.1 m (U11 and U12), 88.0 × 64.2 m (U13) and 100.8 × 68.2 m (U14–U16). Match durations were 20 min × 2 + 15 min × 2 or 25 min × 3 (U11), 25 min × 3 (U12 and U13) and 40 min × 2 (U14–U16). The matches were part of the regular series of inter-academy matches between Premier League Academies during a season. Completion of at least a half of the duration of a match in two separate matches (mean ± s = 3.1 ± 0.8 matches; range: 2–4 matches) was the criterion for inclusion in the study. Total match running distance increased with age from ~5700 (U11) to ~6700 m · h−1 (U15) (P < 0.01). Using the absolute speed zones, it was possible to discern differences in high-intensity (>6.0 m · s−1) distance covered with age (U11: 29 m · h−1, U16: 164 m · h−1, P < 0.01). Using the squad speed zones, it was possible to discern differences between retained and released players in the U11/U12s (moderate-speed running) and in the U15/U16s (walking, jogging and low-speed running) (P < 0.01). Thus, total and high-intensity running distances increase with age, and walking, jogging, low-speed running and moderate-speed running distances are greater in retained than in released players and these differences are best identified through the use of absolute and squad speed zones, respectively. © 2015, © 2015 Taylor & Francis. Source

Kaneta M.,Kyushu Kyoritsu University | Yang P.,Qingdao Technological University
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science | Year: 2010

Isothermal elastohydrodynamic lubrication (EHL) theory has brought the improvement in function, performance, and durability of machine elements with concentrated contacts. The main reason is that the theory can evaluate the lubrication characteristics, such as film thickness and pressure distributions, from the shape and size of contacting materials, lubricant viscosity at the entrance to the EHL conjunction, entrainment velocity, equivalent elastic modulus, and applied load. However, in order to estimate the film thickness and pressure distributions more accurately and to make clear the traction behaviour based on lubricant rheology, it is necessary to establish thermalEHLtheory, which incorporates heat generation in the fluidfilmand heat transfer in the machine system on the foundation of isothermal EHL theory.The thermal conductivity of contact materials controls temperature in the fluid film and consequently the lubricant viscosity. Therefore, the EHL characteristics are affected remarkably by the thermal conductivity of contact materials. In this article, the effects of the thermal conductivity of contacting materials on the film thickness, pressure, and traction coefficient are described. Source

Honda H.,Kobe University | Honda H.,RIKEN | Nagai T.,Kyushu Kyoritsu University
Journal of Biochemistry | Year: 2015

Morphogenesis of multi-cellular organisms occurs through cell behaviours within a cell aggregate. Cell behaviours have been described using cell models involving equations of motion for cells. Cells in cell models construct shapes of the cell aggregate by themselves. Here, a history of cell models, the cell centre model and the vertex cell model, which we have constructed, are described. Furthermore, the application of these cell models is explained in detail. These cell models have been applied to transformation of cell aggregates to become spherical, formation of mammalian blastocysts and cell intercalation in elongating tissues. These are all elemental processes of morphogenesis and take place in succession during the whole developmental process. A chain of successive elemental processes leads to morphogenesis. Finally, we highlight that cell models are indispensable to understand the process whereby genes direct biological shapes. © 2014 The Authors 2014. Published by Oxford University Press on behalf of the Japanese Biochemical Society. All rights reserved. Source

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