1 In a study of individuals suffering from frequent anxiety attacks, patients were given vitamin B6 (125mg, 3 times daily) and tryptophan (2 grams daily). 2  This regime enabled in 70 percent of patients (9 of 13) to become free of anxiety attacks within three weeks.
The Kappa Page. This is a page all about the Twitch.tv Kappa. The Kappa is a meme among Twitch users (and now it seems other places.) The meme has become a sort of patron saint of light hearted trolling among the gaming community. Users typing Kappa into Twitch chat see a special emoticon featuring a smug looking human face.
Then, epsilon can represent: An arbitrarily small, positive quantity commonly associated with the [math](\varepsilon, \delta)[/math] -definition of a limit. It is used in Hilbert's Epsilon Calculus, which is an extension of formal language by the epsilon operator. It can represent the Levi-Civita symbol. It can represent dual numbers.