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.
Menopause comes next, the end of your menstrual periods. After a full year without a period, you can say you have been âthrough menopause,â and perimenopause is over. Postmenopause follows perimenopause and lasts the rest of your life. The average age of a woman having her last period, menopause, is 51.But, some women have their last period in their forties, and some have it later in their fifties. Smoking can lead to early menopause. So can some types of operations.enopause comes next, the end of your menstrual periods. After a full year without a period, you can say you have been âthrough menopause,â and perimenopause is over. Postmenopause follows perimenopause and lasts the rest of your life. The average age of a woman having her last period, menopause, is 51.