Relation between oxygen stoichiometry and thermodynamic properties and the electronic structure of nonstoichiometric perovskite La0.6Sr0.4CoO3-δ.

Continuous phase diagram 3 - δ - log pO2 - T of the nonstoichiometric perovskite La0.6Sr0.4CoO3-δ was obtained in a gas flow reactor by means of the quasi-equilibrium oxygen release technique. The thermodynamic properties of oxides were determined as a function of oxygen nonstoichiometry. Within the framework of the itinerant electron model, the dependence of the oxide nonstoichiometry on the oxygen activity was related to the density of electronic states near the Fermi level.

[The deformation-strain state of bridgework dentures]. / Issledovanie napriazhenno-deformirovannogo sostoianiia mostovidnykh protezov.

Holographic interferometry was used to study strained deformed status of bridge dentures. The technique of measurements with a small holographic system is described. Dentures made of Cr-Ni steel with a principally new method of crown to intermediate part adhesion were under study, as were other bridge denture designs. The findings evidence that holographic interferometry may be used as a sparing method for checking up the quality of casting and adhesion of abutment crowns and an intermediate part of fixed dentures, as well as the strength of adhesion of the facing material (porcelain, plastic) to the metal base of the denture.

[Characteristics of the diagnosis and prevention of pulmonary complications of severe cranio-cerebral injuries]. / Osobennosti diagnostiki i profilaktiki legochnykh oslozhnenii tiazheloi cherepno-mozgovoi travmy.

Under study was the clinico-roentgenological dynamic of the lung state in 79 patients with severe cranio-cerebral trauma. High continuous peridural blocade performed from the moment of admission to the hospital was shown to prevent the development of hard reactive alterations in the lungs. This method however fails to control acute severe aspiration pneumonia.