The paper is devoted to the definition of the minimum electron beam power that is required to obtain stable layer formations during the additive electron beam wire deposition. Correlation between the minimum energy that is needed for stable deposition and the deposition speed has been established. Additionally, the influence of the electron beam oscillation type on geometrical parameters of single layers have been investigated.

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Methods for evaluation of Young’s modulus (Em) of structural materials by instrumented indentation using ball indenter have been considered. All these techniques are based on the solution of elastic contact problems performed by H. Hertz. It has been shown that registration of the initial elastic region in the «load – displacement» indentation diagram provides the Em determination for metals and alloys. However, it is necessary to evaluate accurately the elastic compliance of a device, to use an indenter with a large radius R, and ensure a high surface quality of the test material in advance. Methods for Em determation, when indentation diagrams are recorded in the elastoplastic indentation region, should include the effect of plastic deformation on the elastic displacement calculated by H. Hertz expression. However, it appeared essential to determine the relation between the elastic αel and plastic h components of the total elastoplastic displacement α and the elastic displacement α0 estimated by H. Hertz expression for a definite indentation load. A close correlation between α0 and αel is revealed for steels, aluminum, magnesium, and titanium alloys when using indenters with a radius of R = 0.2 – 5 mm (diameter D = 0.4 – 10 mm) and maximum indentation load Fmax = 47 – 29430 N (4.8 – 3000 kgf). It is also shown that a gradual decrease in Em is observed with an increase in R(D) at the same degree of loading F/D2 for the same material. This fact was explained by the scale factor effect.

The authors present current data about the epidemiology, clinical picture and principles of diagnostics and treatment of late-onset acne in women. The authors emphasize the leading part of endocrine and hormonal disorders and hyperandrogenism in women with late acne. They provide recommendations for basic skin care for women with the onset of acne at a mature age using medical and cosmetic products of the Matidiane line. The authors share their observations concerning the efficacy of using Matidiane medical and cosmetic products.

The authors provide a review of current concepts of the epidemiology, etiology, pathogenesis and treatment principles for seborrheic scalp dermatitis. They also describe the results of multiple national and foreign studies confirming high clinical efficacy of ketoconazole 2% shampoo in the therapy of seborrheic dermatitis.