Switching Kinetics in Nanoscale Hafnium Oxide Based Ferroelectric Field-Effect Transistors.

The recent discovery of ferroelectricity in thin hafnium oxide films has led to a resurgence of interest in ferroelectric memory devices. Although both experimental and theoretical studies on this new ferroelectric system have been undertaken, much remains to be unveiled regarding its domain landscape and switching kinetics. Here we demonstrate that the switching of single domains can be directly observed in ultrascaled ferroelectric field effect transistors.

[-Case report of clinical and pathophysiological similarities of Moschkowitz disease and HELLP syndrome-].

This case report describes for the first time a manifestation of thrombotic thrombocytopenic purpura (TTP, Moschcowitz's disease) during pregnancy. The characteristic neurologic symptoms of TTP were missing, while the typical clinical signs of the HELLP syndrome could be observed. Furthermore the biochemical proof of TTP was obtained by tracing ultra-large clotting factor VIII (von Willebrand factor) multimers in the patient's plasma.

[Different forms of hypertension in pregnancy: pediatric and maternal risks].

Incidence of hypertension in pregnancy is 5 per cent. Half of these 372 cases are gestational hypertensives. 24.

[Various forms of hypertension in pregnancy and perinatal fetal condition].

A prospective study analyses the course of pregnancy and the delivery of 315 women suffering from hypertension during their pregnancy. The perinatal state of the child is analysed as to the prevailing kind of hypertension. Gravidae suffering from gestation and chronical hypertensions, resp.