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This paper proposes a method to recommend paragraphs of Wikipedia pages as a travel guide. This method helps tourists (users) read attractive descriptions of Wikipedia pages during their travel. In order to rate paragraphs, importance, non-redundancy, and novelty of the paragraphs are evaluated based on a Tf-Idf manner. Especially, novelty is done by user's experience estimated from geo-tagged tweets...
Ciguatoxin C-CTX-1 was isolated as a principal causative toxin of ciguatera seafood poisoning in the Caribbean Sea, and is structurally classified as a ladder-shaped polycyclic ether. In this Letter, we report the convergent synthesis of the pentacyclic left half of C-CTX-1, based on a newly developed acyl radical strategy.
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