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.
Knowledge center. Preeclampsia, also written pre-eclampsia, is a condition during pregnancy when there is a sudden, sharp rise in blood pressure, swelling (edema) and albuminuria (excess protein albumin leaks into the urine). Swelling tends to occur in the face, hands and feet.