Observation of Antiferroelectric Domain Walls in a Uniaxial Hyperferroelectric.

Ferroelectric domain walls are a rich source of emergent electronic properties and unusual polar order. Recent studies show that the configuration of ferroelectric walls can go well beyond the conventional Ising-type structure. Néel-, Bloch-, and vortex-like polar patterns have been observed, displaying strong similarities with the spin textures at magnetic domain walls.

[Predictive role of erythrocytes in assessment of COVID-19 outcomes].

Introduction: The search for affordable and accurate predictors of the outcome of COVID-19 is extremely important, as it provides the possibility to effectively correct the patient treatment tactics.

Aim Of The Study: To develop simple and accurate criteria based on the dynamics of red blood counts that predict the outcome of COVID-19.

Materials And Methods: Observations were carried out in 125 patients with severe and extremely severe COVID-19, in whom indicators characterizing the state of red blood were determined in dynamics on days 1, 5, 7, 10, 14 and 21 after the hospitalization.

[Morphological compound and indicators of the blood clotting system in severe COVID-19 patients of middle aged and elderly during treatment of Tocilizumab and Thymalin.].

The aim of the work was a comparative study of Tocilizumab and Thymalin effects on the morphological composition and indicators of the blood clotting system in COVID-19 of middle aged and elderly patients. Severe COVID-19 patients were divided into 3 groups: 1st - control (basic therapy), 2nd - basic therapy +Tocilizumab, 3rd - basic therapy +Thymalin. Hospital mortality in COVID-19 patients after standard therapy, Tocilizumab and Thymalin application was 40,9; 28,4 and 20,6% accordingly.

Changes in Some Vascular Biomarkers in Patients with Severe COVID-19 with Various Degrees of Pulmonary Hypertension.

The aim of the study was to evaluate the levels of cardiac biomarkers endothelin 1, B-natriuretic peptide (BNP), N-terminal pro-B-type natriuretic peptide (Nt-proBNP), NO, and NO in patients with COVID-19 pneumonia and various degrees of pulmonary hypertension. Group 1 included patients with pulmonary artery systolic pressure <25 mm Hg, group 2 with 25-40 mm Hg, and group 3 with 40-60 mm Hg. In the group of patients with pulmonary artery systolic pressure <25 mm Hg, the level of NT-proBNP was higher than in the rest two groups by 41.