We propose a live demonstration of MinervaLight, a P2P Web search engine. MinervaLight combines the (previously separate) focused crawler BINGO! (to harvest Web data), the local search engine TopX, and our P2P Web search system MINERVA under one common user interface. The crawler unattendedly downloads and indexes Web data, where the scope of the focused crawl can be tailored to the thematic in...

A multi-item manufacturer served by a single supplier in a stochastic environment is considered. The manufacturer and the supplier have to decide which items to produce to stock and which to produce to order. The manufacturer also has to quote due dates to arriving customers for make-to-order products. The manufacturer is penalized for long lead times, missing the quoted lead times and high inv...

This article discusses the influence of people's genetic make-up on their mental states of happiness and depression. Contrary to the conventional wisdom, great fortune does not guarantee happiness; neither does great misfortune assure depression. Emotional states are surprisingly immune to "objective" social circumstances. A biological basis for this relative immunity is that people possess bio...