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In answer to Ko's question raised in 1983, we show that an initial value problem given by a polynomial-time computable, Lipschitz continuous function can have a polynomial-space complete solution. The key insight is simple: the Lipschitz condition means that the feedback in the differential equation is weak. We define a class of polynomial-space computation tableaux with equally restricted feedback,...
The demand for content distribution services via wireless local area networks has been increasing. A multi-cell structure, which consists of multiple access points (APs), is more suitable for distributing content in wider areas. However, in multicast, there had been an unsolved issue; how to compensate for data-frame loss for each user. In particular, in wireless links, loss compensation techniques...
In 2003, the Japanese government set an approximate goal of 72,000 social hospitalization in-patients being discharged in 10 years from psychiatric hospitals to the community. To meet this challenge, the clinical pathway (CP) is a useful model for managing the team's progress in providing health care services. High quality discharge planning for patients requires continuous refinement of CP including...
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