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.
Kseniya (also Xeniya, Ksenia, Kseniya, Ksenija or Xena; derived from Greek Î¾ÎµÎ½Î¯Î± xenia - hospitality) is a female name used mainly in Russia Ukraine and Greece.n Spain, although it started to become more popular during the 90s, it appears mainly in Galician Xenia [ËÊenia] , and in Catalan Xenia [xÃ¨nia] ËÊÉniÉ where it is a traditional diminutive Of. eugenia eugÃ¨nia