Structural, Magnetic, and Magneto-Optical Properties of Thin Films of BaM Hexaferrite Grown by Laser Molecular Beam Epitaxy.

Thin films of BaM hexaferrite (BaFeO) were grown on α-AlO(0001) substrates by laser molecular beam epitaxy. Structural, magnetic, and magneto-optical properties were studied using medium-energy ion scattering, energy dispersive X-ray spectroscopy, atomic force microscopy, X-ray diffraction, magneto-optical spectroscopy, and magnetometric techniques, and the dynamics of magnetization by ferromagnetic resonance method. It was shown that even a short time annealing drastically changes the structural and magnetic properties of films.

[Viruso-bacterial pneumonia, complicated by lightness pulmonary bleeding with death].

Despite the significant achievements and successes of medical science, the incidence of influenza, its complications and socio-economic damage do not decrease, remaining at a high level. In the clinic of Mechnikov North-Western State Medical University from December 2018 to February 2019, from 89 hospitalized patients with pneumonia/acute bronchitis viral etiology was determined in 29 (32%). In 27 (97%) patients it was virus A (H1N1), in 2 cases A (H3N2).

Buckling Resistance of Two-Segment Stepped Steel Columns.

Columns of stepwise variable bending stiffness are encountered in the engineering practice quite often. Two different load cases can be distinguished: firstly, the axial force acting only at the end of the column; secondly, besides the force acting at the end, the additional force acting at the place where the section changes suddenly. Expressions for critical forces for these two cases of loading are required to correctly design such columns.

Numerical Simulations of Destructive Tests of Cast Iron Columns Strengthened with a CFRP Coating.

In many cases, there is a need to reinforce the existing, sometimes very old, cast iron columns. The paper describes a proposed and completed reinforcement procedure using an external, thin coating (sleeve or jacket) made of composite (carbon fiber reinforced polymer-CFRP). The strengthening effect was verified in destructive tests performed on two original columns (without reinforcement) and two other, identical columns strengthened by means of the proposed technique.

[Algorithm of Macrophage Activation Assessment for Forecasting and Evaluation of Treatment Effectiveness of Human Diseases].

Despite the high complexity of macrophage activation and subsequent polarization, determination of the key dynamic features of these processes provides the basis for both assessment of macrophage activation current state and for disease prognosis. To sum it up either macrophage phenotype ratio or polarizing stimulus ratio may be the most important indicators.