In Christianity, the Epiphany refers to a realization that Christ is the Son of God. Western churches generally celebrate the Visit of the Magi as the revelation of the Incarnation of the infant Christ, and commemorate the Feast of the Epiphany on January 6.
Acelity began as Kinetic Concepts Inc., a medical technology company founded in 1976 by Dr. Jim Leininger, an emergency room physician in San Antonio, Texas.
Volatility is Usually Standard Deviation, Not Variance. In finance, volatility is usually understood as standard deviation. Of course, variance and standard deviation are very closely related (standard deviation is the square root of variance), but the common interpretation of volatility is standard deviation of returns, and not variance. Here you can find more details: