This study provides an overview of traffic control methods using automated traffic control systems (ATCS). The main approach highlighted during the analysis is the application of rigid multi-program management, including a library of coordination programs. The study also found a dependence of the period of operation of each coordination program on the state and intensity of traffic flow (TF), noting an increase in the period of stationarity with an increase in the intensity of TF. Based on the system analysis, a mathematical dependence of the control parameter on the intensity affecting the efficiency of TF management is proposed. The results obtained can be applied to optimize the operation of the automated control system and develop effective traffic management strategies.

Armenia, with its entire territory, is considered the most sensitive country to climate change. The land tax rate for agricultural lands is determined at 15 percent of the estimated net income determined by their cadastral assessment. The cadastral assessment of agricultural lands in the Republic of Armenia was carried out in 2002-2004. During the assessment, the materials of land management, soil science, geobotanical, and other studies and research conducted in the 1970-1980s were taken as a basis. The article presents the results of research and analysis conducted by the authors during 2020-2023, on the impact of climate risks on the yield and quality of crops on agricultural lands in the Republic of Armenia. As a result of the research, it turns out that among climate risks, the greatest damage to agricultural lands in the Republic of Armenia is caused by frost, hail, and drought, which affects the quantity and quality of crops from agricultural lands, and consequently the income received, which, however, does not reduce the tax burden of the landowner. As a result of the research, to modernize the assessment methodology in the process of calculating net income, it is recommended to adopt the revised calculation method developed and proposed by the authors using risk reduction coefficients (climate risks).

Buckwheat provides essential nutrients crucial for the human body’s regular functioning, however, studies have indicated that it may also contain potentially toxic elements. Therefore, this study aims to assess the health risks associated with buckwheat produced in Armenia, focusing on dietary exposure to toxic elements (lead, cadmium, and arsenic). Risk asessment was conducted using the margin of exposure (MOE) method, involving calculating daily intakes for toxic elements. The study findings suggest that the levels of toxic elements in the investigated buckwheat samples were within acceptable limits. This indicates that there is no significant health risk to consumers.

In 2021, the procedure for cadastral assessment approximated to market value of real estate for real estate taxation (adopted in 2019) came into force in the Republic of Armenia, whereby a new methodology for cadastral assessment of other land fund categories of the RA was determined. The procedure does not apply to agricultural lands, which to this day are assessed and taxed according to the methodology and values that were determined in 1997. In this article, we have addressed some points of the current methodology, which, in our opinion, require revision or additional argumentation.

A task was set to reveal the effect of water-soluble fertilizers of new composition and quality on the content of available nutrients at different depths of the soil, depending on the movement of the irrigation water, irrigation time, as well as its effect on the growth, yielding capacity and the quality of fruit in commercial size walnut orchards. The research has shown that the movement of nutrients in the soil is completely dependent on the movement of water when applying water-soluble complex fertilizers with drip irrigation. Therefore, the amount of the water should be adjusted so that the nutrients are available to the plant’s root system at all depths, improving the growth, and increasing the content of the basic nutrients in the leaves.Fertilizers with less water solubility are mainly preserved at a 0 cm - 30 cm depth. When the root system grows and spreads to the inter-row spaces, it is appropriate to periodically fertilize also the inter-row spacing by the furrow method.

A novel recipe and production technology for sugar confectionery, specifically marmalade, has been developed through scientific and experimental research. The findings affirm that pumpkin and sea buckthorn purees can effectively substitute traditional plum and apple purees, eliminating the need for various coloring agents. The suggested product represents a domestically-produced marmalade, particularly in the food market, and this endeavor will play a crucial role in advancing both marmalade production and the development of the raw material base.

Food security of the population is one of the main challenges of the 21st century, which, due to the events of recent years (Artsakh war, pandemic, Russian-Ukrainian conflict, sanctions, export restrictions) and their consequences, has become more acute. The stability of the grain sector in the country is of particular importance from the point of view of improving the food security in Armenia. Based on the study of international practice of state support for agricultural production, the results of analysis on the effectiveness of the state support tools traditionally used in different countries, as well as evaluating the state support for the development of grain production in RA, we have developed a model of state regulation of grain production, where the application of a number of realistic methods and measures is emphasized. The results of the studies document that, despite the government’s efforts to expand grain production, the grain sown areas are decreasing year by year, yield growth is not ensured, and the total growth is decreasing. Studying the international experience of state support for agricultural production, analyzing the results of the effectiveness of the state support tools traditionally used in different countries, as well as evaluating the state support for the development of grain production in RA for 2010-2021, we propose to revise the state regulation tools. In particular, to create a grain commission, form a guarantee and collateral price institute, set grain production and distribution quantities, strengthen contractual relations, form a commodity credit company and a grain price stabilization fund, apply commodity intervention, as well as promote economy-infrastructure intervention. We believe that the mentioned fundamental measures will contribute to the prospective development of grain production, ensure realistic results in the medium term, strengthen the cooperation between the state, production and science, as well as increase the self-sufficiency level of grain and, most importantly, will contribute to ensuring the food security of the Republic of Armenia.

In recent years, urban green plantings have been significantly reduced in Yerevan; at the same time, due to geoplastic changes, scattered landscapes and rock walls have appeared, which significantly spoil the beautiful appearance of the capital. Therefore, there is a need to implement vertical landscaping. For vertical greening in residential areas, woody lianas are usually used, and in some cases, also grassy lianas and ampelous flowers. In order to improve and green the landscapes, we carried out ecological and biological research on a route basis, carried out appropriate geodetic measurements, and then prepared phytoplans and estimates for greening of some areas and landscapes. In the autumn of 2022, Yerevan Municipality “Greening and Environmental Protection” Community Non­Commercial Organization (“GEP” CNCO) has planted ivy, campsis, and creepers on both sides of the tunnel leading to Saralanj at the beginning of Myasnikyan Avenue (in an area of 70 square meters), due to which the roadside areas will turn into green, blooming landscapes. The selection of lianas was made according to the latter’s dendrocirculation indicators, decorative features and ecological flexibility. In the coming years, “Greening and Environmental Protection” CNCO will carry out vertical greening according to the above principle in similar landscapes of Myasnikyan Avenue, as well as Saralanj and Tsitsernakaberd highways (in the sections, that have undergone geoplastic change), turning the mentioned areas into green and blooming landscapes.

The aim of the work is to study the growing dynamics of total sugars, acids and phenolic compounds (flavonoids, anthocyanins) in Sev Areni grape berries in conditions of organic farming depending on the buds’ load rate. The studies were conducted in 2020-2021. The vineyard belonging to “Hin Areni” CJSC, established in 2007-2008, is located in the Areni community of Vayots Dzor marz, at an altitude of 1200 m above sea level. At the start of the trials, 5 hectares of the garden (10 ha) were cultivated with organic methods. The experiments were carried out in four replications through the method of Lazarevskiy including 15 vines in each option. The dynamics of berry ripening was studied according to vine load. Sugar content (refractometric method), titratable acidity (using OIV-MA-AS313-01 method), pH, total phenolic content of fruit juice was determined three times. According to study results, the amount of flavonoids and anthocyanins changes during grape ripening, depending on the vine load. Along with the grapes maturation, sugar content of the fruit juice increases, the acidity decreases. However, parallel to the increase in vine load, the sugar content decreases. In the option of 50 bud load the sugar content decreases. The harvested yield lags behind the option of 30-40 bud load in its qualitative properties. Thus, it is not recommended to use high bud loading option in the organic farming. Based on the study results, it is recommended to use 30-40 bud vine loads of Sev Areni variety in conditions of vineyards organic farming.

Calf coronavirus (viral diarrhea) is an endemic disease that is mainly spread by maternal infectivity, cold, wet conditions and crowded housing conditions. Feces were sampled from the rectum of 50 newborn, 3-35-day-old calves. The samples were examined by microbiological, hemagglutination and Bovine enterichek accelerated test (antibody strips) in the ANAU Research Center of Veterinary Medicine and Veterinary Sanitary Examination. Epidemiological data, manifestations of clinical symptoms, patho-anatomical changes, hemagglutination reaction and Bovine enterichek test were used to identify the infection of 3-35-day-old calves. Feces with mucus content from the rectum of calves with diarrhea (50 samples), internal organs (spleen, liver, etc.) and affected small intestines of fallen 3-7-day-old animals (3 heads) were examined.During epidemiological studies, an increase in body temperature (42 0C), anorexia, exhaustion, depression and watery-slimy diarrhea were observed in sick calves. Clots were found on the walls of the arteries of dead animals, inflammation and hemorrages were found in the lymph nods and kidneys. According to epidemiological, clinical symptoms, patho-anatomical changes, microbiological research, as well as hemagglutination reaction and Bovine enterichek rapid test data, both coronavirus and enterobacterial diseases were detected in animals at the same time. As a result, farmers and villagers suffered economic losses due to newborn calf falls. The disease was diagnosed according to hemagglutination reaction, Bovine enterichek test and microbiological methods. Morbidity and mortality rates were respectively 0.1 (10 %), 0.6 (60 %), economic loss – AMD 209 400. Based on the effectiveness of the “BolsheVac” (“БольшеВАК”) vaccine, we propose to carry out preventive vaccinations in vulnerable farms.