Orientational and crystallographic relationships in thin films of yttrium orthoferrite on sapphire substrates.

An algorithm is proposed for determining the orientational relationships and crystal unit-cell parameters of thin films using a laboratory X-ray diffractometer and stereographic projections. It is illustrated by the treatment of experimental data obtained for yttrium orthoferrite YFeO films on single crystalline sapphire (AlO) substrates for film thicknesses in the range from 100 to 7000 Å. Precise determination of unit-cell constants and angles is possible by combining the results of X-ray measurements made in the in-plane and out-of-plane geometries.

[Uvulopalatoplasty with a severe form of obstructive sleep apnea: long-term results].

Objective: To assess the severity of daytime sleepiness and the level of sleep apnea/hypopnea index (AHI), as well as the possibility of their correction, in the long-term period after uvulopalatoplasty (UPP) in patients suffering from obesity and obstructive sleep apnea syndrome (OSAS).

Material And Methods: We retrospectively analyzed the data of the patients, who requested a consultation due to nighttime snoring, witnessed sleep apneas and daytime drowsiness. We included men and women of ages 40 to 65 (24 male, 17 female) without cardiac or lung insufficiency.

[Cardiac arrest in obstructive sleep apnea syndrome: treatment options. Case series].

Clinical data of seven patients with severe obstructive sleep apnea, in whom episodes of asystole were recorded at night, is analyzed. In five of seven cases against the background of initiated CPAP therapy (all patients were compliant with the therapy), episodes of asystole were eliminated, and only two cases required the installation of a pacemaker. Conclusions are drawn about the possibility of asystole developing in the background of obstructive respiratory episodes during sleep in patients with severe OSAS and the preventive effect of CPAP therapy.

Genotypic and biological characteristics of non-identified strain of spotted fever group rickettsiae isolated in Crimea.

A strain of rickettsiae, designated Crimea-108, was isolated from ticks Dermacentor marginatus in the Crimea in 1977. Its immunobiological characteristics involve low pathogenicity for experimental animals, moderate infectivity for chick embryos, and antigenic relatedness to spotted fever group (SFG) rickettsiae (R. sibirica, R.

A classification of the subfamily Phlebotominae.

In a new proposed classification of the subfamily, Phlebotominae is divided into 2 tribes (Idiophlebotomini and Phlebotomini), 7 subtribes (Idiophlebotomina, Hertiigina, Phlebotomina, Australophlebotomina, Brumptomyiina, Spelaeomyiina and and Sergentomyiina), 24 genera, 40 subgenera and 70 species groups.