Crystal Structures of Two Titanium Phosphate-Based Proton Conductors: Ab Initio Structure Solution and Materials Properties.

Transition-metal phosphates show a wide range of chemical compositions, variations of the valence states, and crystal structures. They are commercially used as solid-state catalysts, cathode materials in rechargeable batteries, or potential candidates for proton-exchange membranes in fuel cells. Here, we report on the successful ab initio structure determination of two novel titanium pyrophosphates, Ti(III)p and Ti(IV)p, from powder X-ray diffraction (PXRD) data.

Pulmonary embolism and myocardial hypoxia during extracorporeal membrane oxygenation.

The treatment of a newborn with severe meconium aspiration by venoarterial extracorporeal membrane oxygenation (ECMO) was complicated by myocardial hypoxia with a marked decrease of myocardial contractility. The onset of the cardiac hypoxia was related to a pulmonary artery embolus. The origin of the embolus was a deep femoral vein thrombosis, caused by a central vein catheter, which was inserted 1 day before ECMO by venous cutdown.

A comparison of sevoflurane with halothane in outpatient adenotomy in children with mild upper respiratory tract infections.

Study Objective: To investigate the efficacy and safety of sevoflurane compared with halothane in pediatric outpatient ear-nose-throat (ENT) surgery during the induction, maintenance, emergence, and recovery of anesthesia.

Design: Prospective, randomized, comparative, open-label study.

Setting: ENT operating room and postoperative recovery room at a university medical center.

[Extracorporeal membrane oxygenation of the newborn infant--an example of interdisciplinary project management].

In the last three years an interdisciplinary ECMO (extracorporeal membrane oxygenation) team has been set up at the Free University of Berlin in the Steglitz clinic. With this form of management, newborns only a few hours or days old who present with pulmonary failure can temporarily be managed with extracorporeal oxygenation until normal lung function is restored. The set up of this ECMO team, starting with experimental training in animal models, to the bedside clinical use is discussed.