Makoto Hatakeyama

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Identity federation is a powerful scheme that links accounts of users maintained distinctly by different business partners. The concept of network identity is a driver for accelerating automation of Web Services on the Internet for users on their behalf while protecting privacy of their personally identifiable information. Although users of Web Services(More)
SUMMARY We describe attempts to have robots behave as embodied knowledge media that will permit knowledge to be communicated through embodied interactions in the real world. The key issue here is to give robots the ability to associate interactions with information content while interacting with a communication partner. Toward this end, we present two(More)
Service providers often incorporate services other than the main ones they offer for user convenience. Such service providers need to exchange personal attributes with other providers they interact with and link user accounts. Some service providers, however, can not federate the accounts, because the subject of them is not always same; for instance, one(More)
Massive tsunamis induce catastrophic disturbance in marine ecosystems, yet they can provide unique opportunities to observe the process of regeneration. Here, we report the recovery of fauna after the 2011 tsunami in northeast Japan based on underwater visual censuses performed every two months over five years. Both total fish abundance and species richness(More)
Ichthyobodosis caused by the ectoparasitic flagellate Ichthyobodo salmonis is a significant cause of mortality in juvenile chum salmon Oncorhynchus keta reared in hatcheries of northern Japan. The present study established a real-time quantitative polymerase chain reaction assay (qPCR) of I. salmonis ribosomal DNA (rDNA) using SYBR Green. This assay allows(More)
We present the application of 3D reconstruction technology to the inspection and decommissioning work at the damaged Fukushima Daiichi nuclear power station in Japan. We discuss the challenges of this project, such as the difficult image capture conditions (including under water), required use of limited imaging hardware, and capture by personnel(More)
We report here a theoretical study with quantum chemical calculations based on experimental results to understand highly efficient reduction of CO2 to formic acid by using zinc under hydrothermal conditions. Results showed that zinc hydride (Zn-H) is a key intermediate species in the reduction of CO2 to formic acid, which demonstrates that the formation of(More)
Photochromic diarylethenes (DAEs) are among the most promising molecular switching systems for future molecular electronics. Numerous derivatives have been synthesized recently, and experimental quantum yields (QYs) have been reported for two categories of them. Although the QY is one of the most important properties in various applications, it is also the(More)