Acceptance of the COVID-19 vaccine is essential to save student health and ensure educational safety. In this study carried out at the Hispano-America Educational Unit in the city of Ambato, the level of acceptance of mandatory vaccines against COVID-19 was investigated in a sample of 164 high school students. A data-gathering exercise was conducted, revealing that a significant percentage of respondents held misconceptions about the vaccine, including the idea that it contains microchips, causes variants, causes magnetism, and can lead to death. It is crucial to highlight the importance of addressing these misconceptions and promoting greater education and understanding about vaccines to improve vaccination uptake and coverage. In this regard, effective information and education programs are required to counter misinformation and encourage acceptance of the COVID-19 vaccine.

ABSTRACT This paper integrates cultivation theory and moral panics to create hypotheses about the effects of cable network news consumption (CNN. Fox News, MSNBC) on three measures of fear of crime. The study uses the 2015 Chapman University Study of American Fear. The analysis is a block model process OLS multiple regression with imputed missing values for independent variables. Net of significant controls, frequency of Fox News viewership is positively associated with fear of stranger and known offender violent crime, and property crime. National network news consumption also shows positive effects. There are no effects for CNN, MSNBC, nor local news, true crime TV, and TV crime dramas. Implications for theory and future research are discussed.

Описан механизм реализации задач государственной политики Российской Федерации в области пожарной безопасности на период до 2030 на примере разработки индикаторов риска нарушений обязательных требований пожарной безопасности. Приведены и описаны решаемые задачи для разработки научно-обоснованных индикаторов риска нарушения обязательных требований при осуществлении ФГПН в отношении средств обеспечения пожарной безопасности и пожаротушения. Предложено применение метода корреляционного и регресивного анализа для научного обоснования и определения индикаторов риска. Рассмотрены актуальные вопросы совершенствования внепланового контроля, осуществляемого органами государственного пожарного надзора, в современных условиях. The mechanism of implementing the tasks of the state policy of the Russian Federation in the field of fire safety for the period up to 2030 is described by the example of the development of risk indicators for violations of mandatory fire safety requirements. The tasks to be solved for the development of scientifically based risk indicators for violation of mandatory requirements in the implementation of the Federal state fire supervision for fire safety and fire extinguishing means are presented and described. The application of correlation and regression analysis method for scientific substantiation and determination of risk indicators is proposed. The current issues of improving the unscheduled control carried out by the state fire supervision authorities in modern conditions are considered.

Results for the interaction of a hot porous titanium carbide frame obtained in the mode of self-propagating high-temperature synthesis with a copper-titanium melt, are presented. The studies were carried out using two types of samples: without and with preheating up to 300 ºC before synthesis in a furnace. The samples were flat compressed tabs of stock material consisting of two layers with different composition. The lower layer was Ti and C stock, and the upper layer was a mixture of Ti and Cu. The process of sample synthesis was carried out in air. After the reaction took place in the lower layer of the samples and the formation of a porous titanium carbide frame, in both samples the upper layer melted and was absorbed into the lower layer unreservedly. X-ray phase analysis of the central part of the sample showed the presence of three phases – Ti, Cu and Cu3Ti. It was found that the resulting composite was a porous TiC frame impregnated with an alloy of copper and titanium. Titanium carbide grains had a largely non-stoichiometric composition and were polyhedral particles of an average size of 20 microns, as well as particles of stoichiometric composition with a size of no more than 10 microns. An intermetallic compound was found in some areas on the surface of TiC particles in the form of a thin film. In addition, it was found that preheating the initial sample in a furnace to 300 ºC before synthesis increases the content of stoichiometric titanium carbide in the obtained cermet.

The paper views mathematical and numerical models of wear of elastomeric materials developed by the authors in dead rolling with sliding movement. When developing a mathematical model, classical ideas about the kinematic characteristics of a massive elastomeric tire rolling along the abrasive surface of the disc were used. To describe the intensity of wear, the model uses the concepts of wear formulated by D. Archard and modified in relation to the studied objects - rubber-based resin elastics SRI-3 and SRS-30–ARKM-15 rubbers reinforced with carbon nanostructures. The numerical implementation of the mathematical model is performed in the Matlab software package. In order to simplify the numerical calculation, it was decided to switch the rolling slip model to the pure sliding model. The choice of the integration step in time allowed to stabilize the instability of the solution. Thus, the numerical model examined sliding of an elastomeric cylinder along the abrasive surface of the disk at a speed equal to the sliding speed and varying the normal load. The finite element method (FEM) was used as a numerical calculation method. At a fixed depth of indentation, the verification of the developed model was carried out. According to the simulation results, the dependences of the wear intensity of an elastomeric material on the magnitude of specific pressures are obtained. A comparative analysis of the simulation results and the data obtained experimentally make it possible to determine the difference at the level of 20 percent, which may be due to the limitations of the model when thermal characteristics of the materials are not taken into consideration. Thus, the developed model has demonstrated its viability and will be further refined upon taking into account the identified limitations.

The results of experimental studies of deformation and diffusion in the surface layers of metallic frictional couples, which form the experimental and theoretical basis of the materials science approach to the quality evaluation of lubricants, are presented. The concepts of the component’s role for the lubricating medium in the implementation of the plasticizing and strengthening triboeffect are formulated. Structural condition characteristics for the surface layers of copper alloys during friction on steel in the mode of boundary lubrication in surface-active lubricants, are described. The conditions for achieving minimum power losses of such tribosystems for friction and wear have been found. The greatest service life of tribounit in a lubricating medium containing surfactants is resulted from wear resistance increase of a copper alloy with a relative decrease in hardness and increased plasticity of its surface layer. At the same time, a decrease in hardness due to the plasticizing effect of surfactants occurs only in the near-surface deformed layer of tribomaterial, while in its deeper layers with no plasticization resulted from a lubricating medium effect, the mechanical characteristics of the antifriction alloy remain at the required high level. It is demonstrated that alloys with a single-phase structure of an α-solid solution and a wide concentration range of solubility of the alloying element in the solid state meet these requirements. It is found that such boundary conditions are provided by the presence of stationary macroscopic diffusion flows of alloying elements in the zone of contact deformation of a polycomponent tribomaterial. The role of local diffusion phenomena in quasispinodal phase transitions is indicated. Examples of the selective transfer phenomenon during friction in industrial lubricants, are given.