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.
Some changes that might start in the years around menopause include: 1  Irregular periods. 2  Your periods can come more often or less, last more days or fewer, and be lighter or heavier. 3  Do not assume that missing a couple of periods means you are beginning the menopausal transition.fter you go through menopause, you are considered in the post-menopausal stage of your life. Your female hormones won't go up and down the way they used to with your periods. They will stay at very low levels. Some women worry about menopause, and it can cause uncomfortable symptoms.