Enhancement of the Refractory Matrix Diamond-Reinforced Cutting Tool Composite with Zirconia Nano-Additive.

This paper presents the results of the experimental research on diamond-reinforced composites with WC-Co matrices enhanced with a ZrO additive. The samples were prepared using a modified spark plasma sintering method with a directly applied alternating current. The structure and performance of the basic composite 94 wt.

[A cultured concentrated inactivated vaccine against tick-borne encephalitis studied during the immunization of children and adolescents].

The word deals with the results obtained in the study of the reactogenicity and immunological activity of concentrated and inactivated tissue-culture tick-borne encephalitis vaccine, manufactured by the Chumakov Institute of Poliomyelitis and Viral Encephalitides, in the immunization of children and adolescents. The vaccine proved to be moderately reactogenic and exhibited pronounced immunological activity. In 91.

[The clinico-epidemiological characteristics of tick-borne encephalitis in Perm Province].

The epidemiological features and clinical manifestations of tick-borne encephalitis on the territory of Perm Province in 1953-1993 are characterized. In spite of antiepidemic measures a high morbidity level is preserved at the focus of infection with the prevalence of clinical forms accompanied by brain lesions and a tendency to the growth of mortality.

[Antibacterial therapy as a means of preventing ixodid tick-borne borreliosis].

A special epidemiological experiment to prevent borreliosis in persons bitten by infected ticks was performed in 1992-1994 in the Russia's Perm region where Borrelia garinii and B.afzelii circulate, and Ixodes persulcatus tick is the sole vector transmitting these pathogens to human beings. Adult ticks were removed from the bodies of persons who had referred to health facilities for first aid.