Structure and Properties of Cast Ti-Al-Si Alloys.

Intermetallic compounds based on Ti-Al- (Si) are attractive materials with good thermal stability and low density. However, the production of these materials is quite complicated. Partially modified conventional methods of melting metallurgy are most often used due to availability, possible high productivity, and relatively low production costs.

[Inhalational anesthetics].

Inhalational anesthetics have been used for induction and maintenance of general anesthesia for more than 150 years. All of the currently used inhalational anesthetics are chlorinated and fluorinated derivatives of ether. Dosing is carried out using the minimal alveolar concentration (MAC) concept.

Sonographic, pathologic and karyotypic findings in a rare case of placenta fenestrata.

Abnormalities of placental shape are occasionally seen on ultrasound. They have not been reported to be associated with abnormalities in fetal anatomy and karyotype. Here, we report on a rare case of placenta fenestrata with triploid karyotype.

Prostaglandin therapy of peripheral occlusive arterial disease.

The mechanism of prostaglandin therapy in man is still poorly understood. We therefore investigated in 57 patients Fontaine stage II-IV the effect of a single intravenous infusion (37 POAD patients aged 36-67 years, mean 55.5) and the effect of a series of 14 therapeutic infusions (20 patients aged 32-77 years, mean 60.