Artificial hair integrations is a type of synthetic fiber that can withstand heat up to 400 °F (200 °C), and can actually outlast human hair. It is very similar to human hair given it is tangle-free and has a natural sheen. It can be straightened or curled, however, it takes longer to set and futura cannot be colored. It is sometimes sold as a human hair blend. The human hair shaft is made up of dead, hard protein, called keratin, in three layers. The inner layer is called the medulla and may not be present. The next layer is the cortex and the
Debra Nails Debra Nails Debra Nails (born November 15, 1950) is an American philosophy professor and well known classics scholar who taught at Michigan State University. Nails earned her M.A. in philosophy and classical Greek from Louisiana State University before going on to earn a Ph.D. in philosophy at the University of the Witwatersrand, Johannesburg in 1993. Previously, she taught in the Department of Classics, Philosophy, and Religion at Mary Washington College. Nails taught courses on the history of philosophy, continental rationalism, metaphysics, and modern philosophy. Nails' work primarily focuses on ancient Greek philosophy, metaphysics, feminist philosophy, and early modern philosophy. She