Системы пожаротушения тонкораспыленной водой представляют собой современные, эффективные и безопасные решения для предотвращения и борьбы с пожарами. Их применение позволяет значительно улучшить безопасность объектов и минимизировать ущерб. Современная технология тонкораспыленной воды представляет собой сложную эволюцию систем, разработанных три десятилетия назад. Несмотря на то что фундаментальные принципы остались неизменными, достижения значительно расширили область применения и процессов утверждения и валидации. Fine spray fire extinguishing systems are modern, effective and safe solutions for fire prevention and control. Their application allows to significantly improve the safety of objects and minimise damage. Modern fine spray water technology represents a complex evolution of systems developed three decades ago. Although the fundamental principles have remained the same, advances have greatly expanded the scope of application and the approval and validation processes.

Introduction. The development of new effective and safe herbal medicines capable of having a positive effect on reproductive status is an urgent task of domestic pharmacy. Medicinal plants are considered as alternative therapies aimed at increasing testosterone levels and fertility in men. The arsenal of medicinal plants used in traditional medicine for the treatment of diseases in men is mainly represented by phytoadaptogens, most of which have a small resource potential in Russia, therefore, it is relevant to search for plants with a sufficient raw material base and with the potential for cultivation. Thlaspi arvense L. is a promising medicinal plant, as it is widely used in folk medicine as a diuretic, anti-inflammatory, diaphoretic, antihistamine, hemostatic, astringent, has a positive effect on the processes of spermatogenesis and is widely distributed in our country. However, information on the chemical composition and biological activity of Thlaspi arvense L. they are insufficient, which shows the relevance of its further more detailed study in order to substantiate the possibility of application in practical medicine and solutions to the issues of standardization of medicinal plant raw materials.Aim. The study of the influence of Thlaspi arvense L. on the characteristics of the reproductive system of male rats.Materials and methods. The object of the study was an infusion of herbа Thlaspi arvense L. The features of the reproductive behavior of male rats after 21-day administration of the infusion of grass yarutka field were studied using tests that allow quantifying the severity of sexual motivation and sexual activity of males. The viability of spermatozoa in the ejaculate of rats was assessed, the total number of spermatozoa (ACS, million), degenerative and immobile forms (%) was calculated. Morphophysiological parameters of spermatogenesis of rats of control and experimental groups of animals were studied using classical histological methods. The concentration of testosterone in the blood serum of experimental groups of animals was determined by the enzyme immunoassay.Results and discussion. The results obtained allow us to conclude that the fertility of rats has increased against the background of the course administration of the infusion of herbа Thlaspi arvense L., as evidenced by an increase in the testosterone content in the blood, improvement of spermogram indicators and morphophysiological characteristics of spermatogenesis in the testicles of rats. The use of the infusion of herbа Thlaspi arvense L. has a protective effect on spermatogenesis. An increase in the thickness of the spermatogenic epithelium, the diameter of the cross-section of the convoluted seminal tubules and the index of spermatogenesis compared with the control group of animals was revealed. The positive effect of Thlaspi arvense L. on indicators of sexual motivation and sexual activity of male rats is shown.Conclusion. Thlaspi arvense L. is a promising medicinal plant, as it is able to have a positive effect on libido, the number and mobility of spermatozoa, the production of sex hormones, spermatogenesis, as well as on the pituitary-gonadal axis, which is associated with the content of a complex of biologically active substances in it.

This paper introduces a new method for compressing images in energy-starved systems, like satellites, unmanned aerial vehicles, and Internet of Things nodes, which is based on coordinated group signal transformation (CGST). The transformation algorithm is a type of difference coding and may be classified as a non-transform-based image-compression method. CGST simplifies the difference signal conversion scheme using a single group codec for all signals. It considers color channels as correlated signals of a multi-channel communication system. The performance of CGST was evaluated using a dataset of 128 × 128 pixel images from satellite remote sensing systems. To adapt CGST to image compression, some modifications were introduced to the algorithm, such as fixing the procedure of the difference signals calculation to prevent any “zeroing” of brightness and supplementing the group codec with a neural network to improve the quality of restored images. The following types of neural networks were considered: fully connected, recurrent, convolution, and convolution in the Fourier space. Based on the simulation results, fully connected neural networks are recommended if the goal is to minimize processing delay time. These networks have a response time of 13 ms. Conversely, suppose the priority is to improve quality in cases where delays are not critical. In that case, convolution neural networks in the Fourier space should be used, providing an image compression ratio of 4.8 with better minimum square error and Mikowsky norm values than JPEG with the same compression ratio.

Diagnostics of the condition of main pipelines is an important task to ensure the safe operation of fuel and energy complex facilities. Many technological processes, including emergency ones, cause disturbances in the flow of the pumped liquid, resulting in dynamic disturbances propagating through the pipeline. Using pressure measuring instruments, wave parameters are recorded, by analyzing which it is possible to determine the location of the source and the reason causing this disturbance. In this work, dynamic pressure disturbances propagating through the pipeline of the laboratory installation “Stand with a variable profile for the study of non-stationary processes arising in multiphase hydrocarbon flows” created at Transneft R&D were investigated. Dynamic disturbances are formed due to the selection of part of the pumped liquid into the reservoir. The data obtained during the experiment, from pressure and flow sensors, were processed according to the original method proposed by the authors in order to determine the location of the source of disturbance. A series of experiments was also carried out to assess the accuracy of localization of the disturbance source depending on the amplitude of the pressure wave.

In the process of water invasion of reservoir under conditions of pressure decrease below the bubble point pressure of oil with dissolved gas, when oil degasses, an area of three-phase flow of oil, water and gas appears in the reservoir. In this case, each of the phases makes a certain contribution to the formation of the thermal field in the reservoir, due to the thermodynamic effects shows and the heat of oil degassing. The thermal field forming is influence many parameters, for example, the initial water cut of formation, gas oil ratio, the ratio of reservoir pressure and bubble point pressure of oil with dissolved gas, the ratio of reservoir pressure and bottomhole pressure, etc. The thermohydrodynamic processes occurring in this case carry information about the formation and the near wellbore zone. One of the directions for using the features of the formation of the temperature field in this case is the use of thermometric studies of wells to diagnose the condition of the well and formation. Reservoir water invasion under the condition of oil degassing leads to a change in the temperature distribution in the formation, which can be used in diagnosing the identifying sources of water invasion. Using a numerical method for solving the equations of mass conservation and heat influx during non-isothermal three-phase filtration, in this work are studied the features of the formation of the temperature field in an oil-saturated reservoir with an initial water cut during oil degassing. As a result of calculations for various ratios of the initial water cut of the formation and the gas oil ratio, temperature dependences were obtained for different of well operation times. The obtained dependences of temperature on water cut and gas oil ratio can be used as palettes for quantitative evaluation of water inflow rates from formations.

Ovarian cancer is the most aggressive form of all malignant neoplasms of the female reproductive system. Despite certain advances achieved in the diagnosis and treatment of this disease, survival rates are still unsatisfactory, which dictates the need for further study of the etiological factors and pathogenetic mechanisms underlying ovarian carcinogenesis. The purpose of the work was to conduct an association analysis of the rs3218536 polymorphic variant of the XRCC2 gene with the risk of developing ovarian cancer in women from the Republic of Bashkortostan. As a result of the study, it was not possible to detect an association of the studied polymorphic locus with the risk of developing ovarian cancer in women from the Republic of Bashkortostan

In this study, we studied the effects of aluminum coating treatment temperature on the microstructure and phase composition when applied to a VT6 titanium alloy substrate within a low-pressure arc discharge plasma environment. The ion-plasma treatment was conducted at 450 and 500 °C, employing argon shielding, while the aluminum coating was deposited using the vacuum-arc process, resulting in a coating thickness of ~3 μm. Microstructural analysis was performed using a scanning electron microscope, and the structural and phase composition were examined using X-ray diffraction (XRD) imaging in symmetric imaging mode with CuKα radiation. Our findings demonstrate that the application of the aluminum coating initiates the formation of a near-surface α-stabilized layer, extending up to 2.5 μm in thickness due to the heat generated during the ion cleaning process. Subsequent ion-plasma treatment further results in the development of a TiAl3 intermetallide site, reaching thicknesses of up to 1.5 μm, while the α-stabilized region expands to 5.5 μm. Higher temperatures during the treatment process contribute to an increase in the thickness of these aforementioned layers and also lead to the emergence of an intermediate TiAl intermetallic layer.

This research evaluates the development of microbiomes in primary soils, forming in various mining dumps in the arid terrain in the Republic of Bashkortostan, Russia. A metagenomic analysis of the communities was performed by sequencing extended gene sequences. The evaluation of the agro-chemical properties was in accordance with conventional pedology methods. Inverse voltammetry was used to measure the heavy metals (lead, cadmium, mercury, zinc, copper, and nickel) and arsenic content. In all the samples studied, Actinobacteria and Proteobacteria phylas dominated, and, in smaller numbers, Acidobacteria and Bacteroidetes were present. In the natural samples, the proportion of Actinobacteria was higher, and the proportions of Proteobacteria and Bacteroidetes were lower than in the samples from anthropogenically disrupted soils. Verrucomicrobia bacteria and Thaumarchaeota archaea were not found in the forming soils of the Kulyurtau and Tubinsky quarries, although in all other samples, there was a significant content of representatives of these types. Soil formation was observed at the Kulyurtau and Tubinsky mines, with a self-restoration period of more than 30 years. The microbial communities of the forming soils were similar in species richness to the background soils, and the alpha diversity showed a high level of dispersion, although the beta diversity had a different clustering, but the absence of Verrucomicrobia and Thaumarchaeota phyla in the samples from both sites indicates the underdevelopment of new soils compared with the natural background. Agrochemical indicators showed a dependence on the type of growing vegetation and the degree of anthropogenic load, and the correlation with the microbial composition of soils was traced poorly.

Aim. To study serum biomarker profile in patients with coronary artery disease (CAD) and psoriasis and the impact on the incidence of hospitalization for cardiovascular reasons and psoriasis.Material and methods. The study included 90 patients divided into following 3 groups: with psoriasis (n=30), coronary artery disease (CAD) (n=30) and CAD+psoriasis (n=30) in whom serum biomarkers were determined at the beginning of the study (growth stimulation expressed gene 2, N-terminal pro-brain natriuretic peptide (NT-proBNP), interleukin-17 and tumor necrosis factor alpha) and hospitalization rates were monitored over 4 years.Results. There was a significant difference in the concentrations of all biomarkers between the groups (p<0,05), with the maximum values being in the CAD+psoriasis group, except for NT-proBNP. In regression analysis, risk factors for cardiovascular hospitalizations were psoriasis (p=0,049) and increased NT-proBNP concentrations (p<0,001).Conclusion. Comorbidity leads to an increase in the serum concentration of biomarkers, while the risk factors for cardiovascular hospitalization were psoriasis and serum NT-proBNP level.

Today one of the most useful and significant means in supporting and maintaining the foreign investment process is Bilateral Investment Treaties (BIT). The Russian Federation (Russia) and Qatar have actively concluded 84 and 63 BITs, respectively. Unfortunately, the existing BITs do not provide a comprehensive legal framework making it possible to deal with the maritime investments. Hence, the basic question raised in the article is whether the current BITs are a suitable legal framework to protect maritime investments? Having conducted a qualitative and quantitative analysis of all the BITs that Russia and Qatar are parties to, the authors come to the conclusion that the existing BITs are not suitable due to the lack of attention to the necessary issues related to maritime investment. These issues include: (1) the exact scope of maritime areas, (2) definition and types of maritime investment, (3) definition of maritime investor.