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.
Mild pre-eclampsia is diagnosed when your blood pressure is only a little elevated, while severe pre-eclampsia is diagnosed with very high blood pressures and other symptoms, such as headache, abdominal pain, blood and liver abnormalities, and having a large amount of protein in your urine.