[The actual problems of traumatism in the Russian Federation].

In 2005-2018, marked decreasing of morbidity of trauma, intoxications and other outcomes of impact of external causes in the Russian Federation was registered. In the Ural Federal Okrug, the rate of decreasing was the lowest and made up to 1.3%.

[The analysis of mortality of population of able-bodied age because of external causes].

The article presents analysis of mortality because of injuries, poisonings and other consequences of impact of external causes in able-bodied population of the Russian Federation. In 2016, the study identified 18 subjects of the Russian Federation, where these causes of death occupied first rank, leaving behind mortality of blood circulatory system diseases. The optimization of medical care of persons injured by external causes should be implemented by three main directions: traumatological orthopedic one with organization of traumatological centers; сombustiological one with organization of burn centers; toxicological one with organization of toxicological centers.

[The comparative analysis of medical demographic situation in the Uralskii economic district].

The evaluation of medical demographic situation in Kurganskaia, Chelyabinskaia and Orenburgskaia oblasts of the Uralskii economic district was implemented. On the territory of all studied subjects dynamics of decreasing of population size is observed. The evaluation of number of divorces per 1 000 marriages established tendency of increasing of number of divorces in all mentioned oblasts.

[The complex study of road traumatism at the territory of the Cheliabinskaia oblast].

The article presents analysis of prevalence of road traumatism in territory of region. The degree of coverage of population with specialized medical care in conditions of traumatological centers of I, II and III levels is examined The evaluation of effectiveness of these centers is given. The received data testify the high-repeatability indicators of road traumatism and corresponding mortality.

Electron-tunneling modulation in percolating network of graphene quantum dots: fabrication, phenomenological understanding, and humidity/pressure sensing applications.

The two-dimensional (2D) electron cloud, flexible carbon-carbon bonds, chemical modifiability, and size-dependent quantum-confinement and capacitance makes graphene nanostructures (GN) a widely tunable material for electronics. Here we report the oxidation-led edge-roughening and cleavage of long graphene nanoribbons (GNRs) (150 nm wide) synthesized via nanotomy (nanoscale cutting) of graphite (with 2 nm edged diamond knife) to produce graphene quantum dots (GQD). These GQDs (~100-200 nm) selectively interfaced with polyelectrolyte microfiber (diameter = 2-20 μm) form an electrically percolating-network exhibiting a characteristic Coulomb blockade signature with a dry tunneling distance of 0.

Some peculiarities of pulmonary clearance mechanisms in rats after intratracheal instillation of magnetite (Fe3O4) suspensions with different particle sizes in the nanometer and micrometer ranges: are we defenseless against nanoparticles?

We studied differences between phagocytic responses to nanoparticles (NPs) versus microparticles in the pulmonary region by synthesizing magnetite of different sizes and instilling suspensions of these particles intratracheally into rats' lungs. Ten and 50 nm particles caused a greater increase in cell counts of the bronchoalveolar lavage fluid (BALF) than the instillation of microparticles. The response to 10 nm particles was weaker than to 50 nm ones, and the smaller NPs were more cytotoxic; both were more cytotoxic than the microparticles.

Photopolymerization of self-assembled monolayers of diacetylenic alkylphosphonic acids on group-III nitride substrates.

This paper describes the fabrication and characterization of photopolymerizable alkylphosphonate self-assembled monolayers (SAMs) on group-III nitride substrates including GaN and Al(x)Ga(1-x)N (AlGaN; x = 0.2 and 0.25).

[Results of the conservative treatment of patients with ischemia of the lower extremities by hyperbaric oxygenation].

A comparison is made of results of conservative treatment of 123 patients with ischemia of lower extremities of atherosclerotic genesis. It was shown that the maximum efficiency of the treatment was achieved by an associated application of pharmacological drugs and HBO. An analysis of angiograms has shown that the absence of collaterals is one of the causes of the HBO being inefficient.

[Predicting early postoperative thrombosis of vascular prostheses in aorto-femoral position].

Twenty nine factors influencing the function of vascular prostheses were studied in 100 patients. Five parameters were found by computation allowing the formula for prognosis of early thrombotic complications to be built in patients after reconstructive operations of aorto-femoral prostheses. These parameters are: resistance of the distal vascular bed to blood flow, length and diameter of the profound femoral artery, length and diameter of the vascular prosthesis.