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.
Understanding the effect of preeclampsia can help explain preeclampsia symptoms. A woman's preeclampsia symptoms will vary, depending on the severity of the preeclampsia. Symptoms usually include: 1  High blood pressure. 2  Swelling of the hands and face. 3  Abnormal weight gain.  Protein in the urine.