N. Fujiwara

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Organotin compounds (OTs) have been used in a wide variety of consumer products. Despite this, very few studies have reported the occurrence of OTs in house dust or exposure of humans to OTs through the ingestion of house dust. In the present study, concentrations of monobutyltin (MBT), dibutyltin (DBT), tributyltin (TBT), monooctyltin (MOT), dioctyltin(More)
We propose a learning support system with a robot for asynchronous learning. The proposed system consists of a teacher, a user, a robot, a personal computer, an educational material, and a web camera. In asynchronous learning, the timing to provide the supports such as hints and answers in learning is one of important factors. Here, we endowed a robot with(More)
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