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This paper uses an Activity Theory framework to explore adult user activities and informal learning processes as reflected in their blogs and social network sites (SNS). Using the assumption that a web-based space is an activity system in which learning occurs, typical features of the components were investigated and each activity system then characterized.(More)
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Hepatic hemangioma is the most common benign tumor of the liver. Most such hemangiomas are small, asymptomatic, and have an excellent prognosis. Giant hepatic hemangioma has been reported in the literature, but the exophytic and pedunculated forms of hepatic hemangioma are rare. A 56-year-old woman was referred to our hospital under the suspicion of having(More)
We present a study exploring learning in an informal online community (OC) for foodservice professionals according to three planes (i.e., community, interpersonal, and individual planes). Among these planes, this paper focuses on the interpersonal plane (i.e., how do participants interact with each other and what do they share through their interactions?)(More)
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