For regions where f ''(x) is positive, the function is concave up; where f ''(x) is negative the function is concave down. So, looking at the graph of f '(x), wherever slope is positive, you've got a positive second derivative and the function is concave up.
U-Meleni was a part of a group of Artists conducting workshops on spoken word and creative writing showing how it can be used to empower and create change. U-Meleni then travelled to ZIMBABWE for three weeks ( Aug 13-Sept 2, 2006) to spend time with family and friends.
Melinoe (Î¼ÎµÎ»Î¹Î½Î¿Îµ in Ancient Greek) is the Greek goddess of ghosts, sometimes confused with Hecate. She wandered the earth every night with a train of ghosts, scaring anyone in their path. This was said to be the reason why dogs bark at nothing at night. She is the daughter of Hades and Persephone.