Yugo Hayashi

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A psychological experiment was conducted to capture the nature of Human-Human and Human-Agent Interactions where humans and computer agents coexist in a collaborative environment. Two factors were manipulated to investigate the influences of the 'schema' about and the 'actual partner' on the characteristics of communication. The first factor, expectation(More)
Oxidized horse cytochrome c (cyt c) has been shown to oligomerize by domain swapping its C-terminal helix successively. We show that the structural and thermodynamic properties of dimeric Hydrogenobacter thermophilus (HT) cytochrome c(552) (cyt c(552)) and dimeric horse cyt c are different, although both proteins belong to the cyt c superfamily. Optical(More)
In this study, we investigated effects of having different perspectives in solving collaborative tasks. A simple reasoning task was given to several pairs of participants, each of whom discussed their views with their partner. Protocol analysis was performed to reveal how people exchange information with a partner who has a different perspective to achieve(More)
In this study, we investigated the nature of establishing common ground during collaborative problem solving. Our goal was to investigate the following two points: (1) if the establishment of common ground leads to successful problem solving, and (2) how the two factors, communication experience and the richness of media, affect the establishment of common(More)
Knowledge on domain swapping in vitro is increasing, but domain swapping may not occur regularly in vivo, and its information in cells is limited. Herein, we show that domain-swapped oligomers of a thermostable c-type cytochrome, Hydrogenobacter thermophilus cyt c552, are formed in E. coli which expresses cyt c552. The region containing the N-terminal(More)
The study investigates learning activities of students making explanations about a key concept in an online system with a Pedagogical Conversational Agent providing (1) facilitation on learners' explanations from various views and (2)social facilitation prompts of other members in the classroom. A total of 314 learner's explanation activities were collected(More)
The present study investigates how a conversational agent can facilitate explanation activity. An experiment was conducted where pairs of participants, who were enrolled in a psychology course, engaged in a task of explaining to their partners the meanings of concepts of technical terms taught in the course. During the task, they interacted with a(More)
Since neural networks have superior information processing functions, many investigators attempt to model biological neurons and their networks. Furthermore, a number of studies of neural networks have recently been made with the purpose of applying engineering to the brain. In this study, we investigate the effect of STDP on the ability to extract phase(More)
63 An Efficient Memetic Algorithm for Dynamic Flexible Job Shop Scheduling with Random Job Arrivals Liping Zhang, The State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science & Technology, Wuhan, China Xinyu Li, The State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of(More)