Hiroyuki Hakoda

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BACKGROUND Recently, gastrointestinal stromal tumors that have developed outside of the digestive tract have been reported. These tumors are collectively termed extra-gastrointestinal stromal tumors. Extra-gastrointestinal stromal tumors can also develop in the liver. Only eight case reports involving primary GIST of the liver have been published. We report(More)
BACKGROUND Larger insulinomas are reportedly more likely to be malignant; however, their biological behavior has not been clearly elucidated. We here report the characteristics and treatment of a giant insulinoma with local invasion and lymph node metastasis. We also review published reports concerning the clinical features of giant insulinomas and(More)
We show a back-of-device (BoD) interaction based on the range of motion of the index finger to improve the usability of a touchscreen mobile device held in one hand. To design this interaction, we conducted two experiments to investigate the range of motion of the index finger on the back of mobile devices. On the basis of those results, we designed a(More)
The authors propose an operating method for multi-touch environments based on a metaphor of the table manners of Western dishes. The user holds two styli, or uses two fingers, as a knife and fork, for operation. The fork plays a role of pointing and selection and the knife plays a role of executing a command. The actions are organized based on table manners(More)
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