Oceanic lithosphere is continuously formed at a constant rate at the mid-ocean ridges 1 0 = 0. Thus at x = 0 the temperature is the Heaviside step function. Finally, we assume the system is at a quasi-steady state, so that the temperature distribution is constant in time, i.e. T=T(x,z).
Because preeclampsia can prevent proper blood flow to the placenta, babies may be born prematurely and can suffer from later conditions such as learning disabilities, epilepsy and hearing and vision problems.
Preeclampsia may not cause any symptoms but can still be very dangerous to you and your baby, even if you feel fine. Your healthcare provider will screen you for the condition at every prenatal visit by taking your blood pressure, and if it's high, testing your urine for protein.