The Orthodox Ethos of the Russian-Turkish War of 1877-1878: Topological and Discursive Analysis

The article analyzes the Orthodox ethos of the Russian-Turkish war of 1877-1878. It is not only about justifying participation in the war, but also about the creation of a universal rhetorical practice to explain both global military events and one's own personal choice in war. Military journalists were the main actors in the creation of this ethos. Topos, as an angle of view for the production of arguments, is a "commonplace", the starting point of reasoning, for all subjects of interaction within the information space of war. The filling of the topos was one or another discourse - an oral or written text in which the meaning of the statement unfolds. © 2021 Matica Srpska. All rights reserved.Исследование выполнено за счет гранта Российского научного фонда (проект № 20-18-00240)

Modular hardware platform for the development of industrial Internet of Things (IoT) devices

The modular hardware platform architecture for the development of industrial IoT devices is presented as an example of information harvesting and its analysis. Variants of modules implementing typical functions of such devices are given: data acquisition from a distributed array of sensors; preprocessing, aggregation and data transmission; data mining; storage of primary data and analysis results.</jats:p

THE STUDY OF THE DEPENDENCE OF SIZES OF MEASURED MICROSCOPIC OBJECTS AT THE POSITION OF THE SLICE PLANE

For microscopic objects in the form of spheres of different radii have been calculated the functions of distribution of the cross sections radii, taking into account the dependence on the position of the plane of the slice. Taking into account this dependence, the distribution functions of the cross sections radii of the spheres whose radii were given by the normal distribution law with the variation of its parameters were calculated. It is found that the difference between the given distribution function of the radii of spheres and the distribution function of their sections in the plane of the slice depends on the ratio of the standard deviation to the mean value of the radii. Depending on this relation, two simple algorithms are proposed to reconstruct the distribution function of the radii of objects by the distribution function of the radii of their sections. It is shown that these algorithms can be used to correct the experimental curve of the size distribution of micro-objects in the form of ellipsoid.</jats:p

FEATURES AND POSSIBILITIES OF BLOOD BIOIMPEDANCEMETRY

The bioimpedancemetry has long been used to determine some blood parameters used in laboratory diagnostics. Due to the specificity of blood as a liquid disperse substance, its electrical conductivity is directly related to the relative volume of the non-conductive phase, that is, erythrocytes, and therefore, the bioimpedancemetry method is used to determine hematocrit. The ambiguity of the results in determining the frequencies corresponding to the achievement of the limiting value of the high-frequency electrical conductivity of the blood, as well as the patterns that connect the high-frequency electrical conductivity of the blood with the electrical conductivity of the plasma and erythrocytes, demonstrate the urgent need for additional research. The purpose of the study was to determine the features of the frequency dependence of the blood bioimpedance modulus with the values of hematocrit and blood plasma bioimpedance modulus in order to establish the capabilities of the blood bioimpedancemetry method as a whole. The frequency dependence of its bioimpedance was determined on 16 blood samples from healthy donors. For each blood sample, the frequency dependence of the bioimpedance of whole blood was taken, then the plasma formed after erythrocyte sedimentation in a vertically installed test tube. The impedance modulus was measured in the frequency range from 10 kHz to 10 megahertz. The optimal frequency of 5 megahertz was determined, at which the limiting high-frequency value of blood electrical conductivity is reached, which makes it possible to determine the electrical conductivity of the erythrocyte cytoplasm. An expression is obtained for high-frequency electrical conductivity as a function of the electrical conductivity of plasma, cytoplasm and relative hematocrit. It is shown that the measurement of low-frequency (up to 100 kilohertz) and high-frequency values of blood electrical conductivity, as well as plasma electrical conductivity, also makes it possible to determine the hematocrit and the electrical conductivity of the erythrocyte cytoplasm. An equation was obtained that relates the hematocrit index to the ratio of high-frequency and low-frequency values of blood electrical conductivity, which makes it possible to determine the true hematocrit of human blood in vitro. Thus, the measurement of low-frequency and high-frequency electrical conductivity of blood and the measurement of electrical conductivity of plasma make it possible to determine not only the hematocrit index, but also the electrical conductivity of the cytoplasm of cells in one blood sample. The work proves the practical possibility of determining the complex of electrophysical parameters of a native blood sample while maintaining their real values.</jats:p