Casual conversation seems to be the last domain in which logic may be successfully applied. We want to demonstrate here that this intuition is incorrect. On the contrary, logic offers a new perspective on conversation, not at the behavioural level, but at the argumentative level. By studying the way arguments are logically linked together, we can observe new phenomena, like conflicting beliefs ...

Urinary aminoimidazolecarboxamide (A IC), serum folate, and serum vitamin B12 values were determined in 84 apparently healthy individuals. An automated system for determination of AIC in urine is described. Despite claims to the contrary, we found no evidence of a strong relationship between elevated (e.g., >1.3 zg/mg of creatinine) AIC excretion as reflected in a casual sample of urine and fol...

M ost computer systems for collab-orative work provide desktop videoconferencing tools for business meetings. However, meetings aren't always formal or business related. Casual meetings such as chatting during a coffee break or in a hallway occur daily. They also play an important role in collaboration. We believe that conventional desktop videoconferencing systems , which multicast pictures an...

Augmented Reality is a technology that integrates pictures of virtual objects into images of the real world. Besides the technical problems still to be solved, for industry to be interested in this technology the additional amount of work needed to use the technology in relation to the benefit has to be visible. Furthermore the question how this integrates into the information technology infras...