Upregulation of glial cell line-derived neurotrophic factor (GDNF) in the rat cochlea following noise. Pharmacologic manipulation of the labyrinth with novel and traditional agents delivered to the inner ear.
Slavery in the United States was the legal institution of human chattel slavery that existed in the United States of America in the 18th and 19th centuries after it gained independence and before the end of the American Civil War.he United States was polarized over the issue of slavery, represented by the slave and free states divided by the MasonâDixon line, which separated free Pennsylvania from slave Maryland and Delaware.
In ancient times, crimes such as assaulting one's elder brother or mother were punished by subjecting to slavery. Thus, slaves were mostly obtained from war captives and criminals. Slaves were made to wear skirts made of cloth that were tied along their waist, extending up to their knees and as long as the owner so desired.