The feeding events of wild animals have been widely researched in recent decades. The use of invasive methods to determine stomach contents in which the fish is killed can, however, be considered to be unjustifiable in the case of an endangered fish, such as the Japanese late. Here, we report on a method that can be used to verify feeding events of a fish… (More)
Conventional research on pedestrian navigation systems has explored the possibilities of presenting information to users both visually and aurally. Existing navigation systems require users to recognize information, and then to follow directions as separate, conscious processes, which inevitably require attention to the system. This study proposes a novel… (More)
We propose a system for animatronics storytelling that enables performers to manipulate puppets by wearing a mask-type device on their faces.
Swimming at an optimal speed is critical for breath-hold divers seeking to maximize the time they can spend foraging underwater. Theoretical studies have predicted that the optimal swim speed for an animal while transiting to and from depth is independent of buoyancy, but is dependent on drag and metabolic rate. However, this prediction has never been… (More)
Dietary aluminum (Al) intake by young children, children, youths, and adults in Japan was estimated using the market basket method. The Al content of food category (I-VII) samples for each age group was determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The Al content in processed foods and unprocessed foods ranged from 0.40 to… (More)