Diwali, also known as Deepavali, Dipavali, Dewali, Deepawali or the Festival of Lights, marks the beginning of the Hindu New Year. It is celebrated on the 15th day of Kartika (October/November) in the Hindu calendar.Diwali celebrations can last for about five days.Lanterns for the Diwali celebrations. Lanterns for the Diwali celebrations.t is celebrated on the 15th day of Kartika (October/November) in the Hindu calendar. Diwali celebrations can last for about five days. Lanterns for the Diwali celebrations. Lanterns for the Diwali celebrations.
Best example of positive feedback is the release of oxytocin during childbirth. Oxytocin is a reproductive hormone in females. Though it is also secreted in males, its function is yet unclear. Secretion of oxytocin occurs in response to nervous stimulation of the hypothalamus. It stimulates and enhances labor contractions.
1 Irregular and unpredictable contractions (for example, intervals between contractions of ten minutes, six minutes, two minutes, eight minutes, etc.) 2  There is no progression of labor.  Contractions are felt as a generalized abdominal tightening.