3) Critically damped: [math]x(t) = (A + Bt)e^{- \gamma t}[/math] This is the optimally damped case, where the damping coefficient is just large enough to completely quell the oscillations, so the oscillator returns to zero in the least amount of time possible. 4) Overdamped: [math]x(t) = Ae^{- \gamma_{1}t} + Be^{- \gamma_{2}t}[/math]
DEAR READER: A woman is considered to be in menopause once it has been one year since her last period. Once menopause begins, vaginal bleeding is not normal. Post-menopausal bleeding (PMB) can happen for many reasons. It may result from infection or injury. Non-cancerous growths such as polyps and fibroids can cause PMB. So can bleeding disorders or use of blood thinners.
In some cases, changes in the body that lead to the menopause can start as early as 10 years before a final period. On average, a menstrual cycle lasts about 28 days, but anywhere between 21 and 35 days may be considered normal.One of the first signs of changing hormone levels is a change in the pattern of your monthly period. As your body transitions to menopause you may experience a range of symptoms that include changes in:he average age of menopause for women in the UK is 51, but it can happen as young as 40 and as old as 60. Problems like heavy or prolonged periods often start in the run up to menopause as your body transitions due to hormonal changes.