It is shown that the two-loop Kac-Moody algebra is equivalent to a two variable loop algebra and a decoupled β-γ system. Similarly WZNW and CSW models having as algebraic structure the Kac-Moody algebra are equivalent to an infinity of versions of the corresponding ordinary models and decoupled abelian fields.

How readily do potential migrants respond to increased returns to migration? Even if origin areas become less attractive vis-à-vis migration destinations, fixed costs can prevent increased migration. We examine migration responses to hurricanes, which reduce the attractiveness of origin locations. Restricted-access U.S. Census data allows precise migration measures and analysis of more migrant-...

Visually impaired people, completely or partially blind cannot perceive the surrounding environment as normal healthy people can. Not knowing how colors and shapes look like is a serious penalty and they have to live with it an entire life. It is known that the human brain adapts and compensates with greater capabilities for hearing and touch when vision is low or missing, that is why blind peo...

In recent years the game industry has had a huge growth. We’ve seen new game consoles, great looking games and an increase in the number of people playing them. We are presently in the seventh generation of video games which focuses on consoles released since 2004. For home consoles, the seventh generation began on November 22, 2005 with the release of Xbox 360 and continued with the release of...

In this paper, we propose a media system, named OVISS, which visualizes and summarizes the longterm omnidirectional surveillance video to a viewer. OVISS is capable of visualizing the omnidirectional video given from a vision sensor, called HyperOmni Vision, with 360 degrees view field, by coordinating temporal and spatial representation. The representation media of OVISS is a time line showing...

It has been recognized for more than half a century that, in addition to occasional mammary gland alveolar or ductal epithelial cell fragments, colostrum and milk consistently contain significant concentrations of viable leukocytes. These include lipid-laden macrophages that can exhibit ameboid and phagocytic activity, polymorphonuclear neutrophils, and lymphocytes of various sizes (1, 2). The ...