Katsumi Sato

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The Fukushima Dai-ichi NPP accident contaminated the soil of densely-populated regions in Fukushima Prefecture with radioactive cesium, which poses significant risks of internal and external exposure to the residents. If we apply the knowledge of post-Chernobyl accident studies, internal exposures in excess of a few mSv/y would be expected to be frequent in(More)
BACKGROUND Proximal humeral fractures occur frequently. Displaced or unstable fractures require open reduction and internal fixation. Our objective was to investigate the clinical and radiographic results of the internal fixation using Polarus humeral nails for fractures of the proximal humerus. MATERIALS AND METHODS From January 2001 to April 2006, 54(More)
BACKGROUND Much controversy exists as to the management of full-thickness tears of the rotator cuff. Not all patients with rotator cuff tears require surgical treatment. We have little information whether there are factors that are related to successful outcome of conservative treatment. AIM. The purpose of this study was to determine the factors related to(More)
Comprehensive whole-body counter surveys covering over 93% of the school children between the ages of 6 and 15 in Miharu town, Fukushima Prefecture, have been conducted for three consecutive years, in 2011, 2012 and 2013. Although the results of a questionnaire indicate that approximately 60% of the children have been regularly eating local or home-grown(More)
Comprehensive whole-body counter surveys of Miharu-town school children have been conducted for four consecutive years, in 2011-2014. This represents the only long-term sampling-bias-free study of its type conducted after the Fukushima Dai-ichi accident. For the first time in 2014, a new device called the Babyscan, which has a low (134/137)Cs MDA of <50(More)
The objective of this study was to work with a consecutive series of patients having Hospital for Special Surgery scores higher than 90 to evaluate kinematic patterns, under in vivo conditions, for 20 Japanese subjects implanted with 2 different mobile-bearing (MB) total knee arthroplasties (TKAs). Femorotibial contact paths for the medial and lateral(More)
We propose D-FLIP Paintings, a dynamic, flexible, and interactive display method of paintings aimed at education of art appreciation. This system dynamically makes a flexible layout of hundreds of paintings in real time according to the variety of interactions among the users. It is expected to provide proactive learning and new insights through dialogues(More)
Drunk driving is dangerous. An experience of drunk driving gives you a sense of the danger involved. For example, there is a seminar where you can experience drunk driving virtually at a driving school in Japan. Drunk driving virtual experience using a driving simulator also exists, but these programs target adults and people who can drive. Furthermore,(More)
Since the very successful release of the world's first mass-produced HEV (hybrid electric vehicle) in 1997, the number of HEVs as well as EVs (electric vehicles) has been gradually increasing in major cities around the world. Reliable and efficient power devices transferring energy between the battery and the motor/generator represent the heart of the(More)
Dance has been a required subject in Physical Education in Japan since 2012 [MEXT 2010]. However, there are many Physical Education teachers at elementary and junior high schools who had never taught dance before it became a required subject in 2012. There are even many teachers among them who have never studied dance. It has been reported that there are(More)