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The problems of environmental pollution in the conditions of high dust content in the air during the development of coal mines in the territory of the Czech Republic are considered. A mechanism for making managerial decisions was developed using an integrated approach using the new technological process Nastup Tušimice (DNT) aimed at eliminating pollutant emissions and managing workers in dusty conditions in mining operations. The recommendations of active and passive measures aimed at reducing dustiness in the process of coal mining have also been developed.

Thin films of nickel hydroxide were prepared using the cathodic template method and were tested in different electrolytes. The electrolytes were 0.1 M KOH and 0.1 M KOH with the addition of 0.1, 0.3 and 1 mM K2WO4. The test revealed, that the presence of tungstate can have a significant effect on electrochemical and electrochromic characteristics of Ni(OH)2 films. The initial sample, cycled in 0.1 M KOH showed different characteristics from those cycled in tungstate-containing electrolytes: significant difference between current densities of cathodic and anodic peaks and presence of the current plateau on the cyclic voltamperometry curve. However, the initial sample demonstrated the highest coloration degree of 74 %. On the other hand, the sample showed degradation of the coloration degree past initial growth.The samples cycled in the tungstate-containing electrolyte showed better electrochemical characteristics – sharper cathodic and anodic peaks, with the lesser difference between peak values. The dynamics of the absolute coloration degree of the samples cycled in tungstate-containing electrolyte showed a constant increase. The sample tested in a solution with 1 mM tungstate had the lowest value of the absolute coloration degree – 60 %. For tungstate concentrations of 0.1 and 0.3 mM, the absolution coloration degree at the last cycle was 72 and 71 % respectively.The samples tested in a solution with tungstate additive had a significantly lower bleaching time – 40–50 s in comparison to 360 s of the sample cycled in 0.1 М KOH.A possible mechanism that explains such differences in behavior was proposed

Actual importance of research theme: Combating hunger and providing the Earth’s population with sufficient amount of products is considered one of the strategic priorities of human civilization sustainable development by the UN up to 2030. The rapid growth of this planet’s human population in the 21st century, estimated at 7.6. billion people, leads to the global demand for production and foodstuff. Simultaneously, traditional strategies of extensive development conventional in the 20th century and “target” intensification of agriculture do not take expected positive effect nowadays. World economy requires for new strategies of agricultural production, as well as promoting ‘green revolution’ based on the ground of IT technology advances and “Industry 4.0.”. The generalization of world experience concerning development and implementing agricultural production strategies in the 21st century is of greater theoretical and practical importance for all countries which export agricultural production in mass scales, including Ukraine which focuses on the leadership in the world agricultural business. Thus, the urgency of the issue confirms the actual importance of this article. The problem statement. Foodstuff output in world economy is growing slowly and does not meet the increasing demand for food and agricultural products in industry in global scales. Under these conditions the manufacturers of agricultural products like farmers, agro-businesses and agro-holdings, as well as transnational corporation alter and modify agricultural strategies that were conventional in the 20th century. Among the new strategies transition to precision farming and innovational agriculture based on implementing IT technologies takes the leading role. The core and socio-economic consequences of such strategy implementation require further study. Analysis of latest studies and publication. The important contribution to the study of the core and dimensions of agricultural production strategies linked to innovation and investment development as well as to improvement property relations is made by such Ukrainian scholars as P. Makarenko, V. Pilyavskiy [1] and O. Shul’ga [2]. Foreign scientists like Smaller, C., andW. Speller, withH. Mirza, N. Bernasconi-Osterwalder, andG. Dixie [3] paid the specific attention to the study of strategic priorities concerning risks minimization and profit maximization by agro-businesses and TNC within the realization of agricultural contracts at world markets. Overseas researchers KeatingB., HerreroM., CarberryP. [4] emphasized on actual importance of compliance with strategy of foodstuff security in global environment in their studies. However, the issue of developing the strategy of precise agricultural production based on widespread use of innovation and IT technologies, research into socio-economic consequences accompanying their implementation in the 21st century remains poorly studied. Research challenge of general issue. The issue of studies the core and elements of agricultural production development process in world economy is highlighted in world economic literature pretty well. Nevertheless, the study of TNCs and agricultural businesses strategies and strategies concerning transition of TNCs to the development of precise agriculture is really meaningful. Besides, at present time the trends of direct foreign investments as for agricultural lands purchase and priorities analysis of their use by TNCs in developed and developing world countries are uncertain. Socio economic consequences of mass precise agriculture introduction for national economy in countries with agrarian specialization also require detailed researching. Problem statement, objective of research. The objective of research is to highlight the core and define the regularity of formation, as well as emphasize the basic expected socio-economic consequences of precise agriculture development strategy implementing on the grounds of generalization the world experience of agricultural TNC sactivity. To achieve the objective set the article aimed at solution the following tasks: to note the main ‘players’ at the world agricultural market and study the priorities of their economic activity; to study the core and the elements of ‘green revolution’ strategy, as well as strategy of transition to precise agricultural production based on implementing innovations and IT technologies; to define strategic goals of TNCs as for the use of acquiring land ( at the cost of direct foreign investments) on the grounds of generalization developed and developing countries experience; to point out the expected socio-economic consequences of mass implementation of precise agricultural production strategies by TNCs and national agro-businesses for the economy of the countries specialized in agriculture. Method and methodology of the study. While studying the world experience of implementation the precise agricultural production development strategies theoretical and empirical methods of scientific research were employed. Historical and logical methods, abstract and specific methods, methods of analysis and synthesis, as well as causal (cause-and-effect) method were applied in the article to define strategic priorities of agricultural business and agricultural TNC specialization, to point out expected socio-economic consequences of mass transition to precise agricultural production in the countries with agrarian specialization. Synergetic approach, method of expert estimates and casual methods were applied to ground “green revolution” strategy, as well as strategy of TNCs as for transition to precise agriculture based on innovations and IT technologies. The results of study. Agricultural production is presented by farmers, households, state agricultural sector, national agro-businesses and agro-holdings, international TNCs. As a rule, farms are focused on domestic market; they specialize in production of minor parties of manual crop production and horticulture, grow vegetables, fruit and berries, as well as they are engaged in poultry farming, beekeeping, dairy production, stockbreeding in rather small scales. The farmers in developed world countries, particularly EU countries, concentrate on organic production which is of high demand among middle-class representatives. In EU countries farming is traditionally supported by the state, as it bears both economic and social valuable functions, i.e. assists in rural development and creates workplaces in countryside. The main stakeholders at the mass agricultural market in the world are considered large national and international agro-holdings an TNCs specialized in agricultural production and its industrial processing. TNCs shaped the closed loop – from selection to agricultural production, from its processing to its manufacturing. At the cost of large production scales, as well as capital concentration and centralization it is the agricultural TNCs which leads in production and export of foodstuffs at world markets. TNCs ‘ leadership at world agriculture markets is grounded on ‘green revolution’ strategy implementing, which consists of such elements as innovations, bio-selection to produce performance breed, intensive growth in crop productivity, including the one using GMO which makes cropping insensitive to water shortage, high temperatures and droughts. Agrarian TNCs in the 21st century actively implement the strategies of transition to precise agriculture based on the use of innovations and IT technologies. As the world experience confirms, strategies of transition to precise agriculture combine the following innovations: astronaut and aviation technologies, unmanned technologies, unmanned aerial vehicles; mass transition to the use of apparatus to analyze the ground online; spreading of “agro-scouting” innovation technologies as for field information gathering concerning the condition and development of agriculture; implementation intellectual system of managerial decision-making support; introduction of monitoring and control auto-system and implementation of IT-system as for account of agriculture process elements. The development of precise agriculture for national world economies which are agriculture-based offers a lot of benefits, such as: increase in labor productivity in agriculture; the decrease in employment that saves working capital of agro-businesses; industrialization and technical renovation of agrarian sector which promotes the market for IT products, precise machine building; increase in commerce and export potential of the country, mainly, in the sphere of monostructural crop production (grain, corn, soya, raps, oilseeds etc.). Such strategies also provide revitalization of direct foreign investment processes by TNCsconcerning purchasing farmland in the developing countries with their further listing as raw materials supplier for TNCs. The latter shape and control international links of production value added to all kinds of agricultural products. Among the risks which implementation of precise agriculture strategies bear for national developing country’s economy which are agriculture-based the following should be mentioned: risks concerning decrease in farms and decline in production of labor-intensive small-scale agriculture products (vegetables, fruit, honey etc.); risks of jobs recession and, respectively, the number of rural population and others. There are also other risks linked to these processes like risks of growing volumes of ready foodstuffs import, chronic scarcity of state budget and increase in internal debt, enhancing migration processes etc. In case of falling world prices for foodstuffs and worsening global conditions for agriculture products, including agrarian raw materials, in particular, due to another world economic crisis, the abandonment of occasional farmland purchased by TNCs in developing agrarian countries, their further freezing and ceasing the processing for better times should not be excluded. Under such circumstances the risks of famine for countries which could lose the managerial control over own land resources are also a threatening exercise as for implementing such TNC strategy. The field of results application. International economic relations and world economy, development of agriculture competitive strategies in world countries and agrarian TNCs in world economy. Conclusions. Farms, agro-businesses, agro-holdings and agrarian TNCs are the economic centres of mass agriculture production in all world countries. Farms are mainly specialized in labour-intensive small-scale agriculture production like horticulture, gardening, bee-keeping etc. Large agro-businesses and agrarian TNCs choose the strategy of specializing in mass monostructural agriculture production such as crop production (grain, corn, soya beans and industrial crops). In developed world countries TNCs apply the strategy of farmlands multi-purpose use, including the goals aimed at development and processing livestock and crop production; at development of renewable energy and bio-energy. In developed world countries TNCs focus on processing all kinds of agriculture products and foodstuffs production with high value added. Purchasing of farmlands by TNCs in developing countries, in particular, at the cost of direct foreign investment, provides for implementation the strategy of purchased lands engagement, mainly, to develop crop production as a raw basis for their further processing in the native countries for TNCs. The general world trend of agrarian TNCs development is use of innovation technologies, transition to precise agriculture based on IT technologies, aviation and astronautic technologies, unmanned aerial vehicles and other innovations which positively impact labor productivity and mass industrial production profitability, as well as choose transition to monostructural agrarian specialization as a priority, but bear a set of social risks for developing countries’ economies. Transition of Ukrainian agro-businesses and agro-holdings to the strategy of precise agriculture development based on innovations and IT technologies provides Ukraine’s competitiveness at the world agrarian markets. This process should go hand-in-hand with land reform taking into account Ukrainian farming interests. Establishing industrial processing of agriculture raw products and production of ready foodstuffs with high value added should be strategic for Ukraine.

Purpose. In modern conditions of energy consumption growth and a rapid increase in energy prices the actual problem is the development and implementation of energy efficiency programs and resource-saving conversion in to a source to provide the needs of industry and municipal power. The paper aims to solve the urgent problem of energy saving and efficient use of fuel-energy ones and heat supply system optimization on the basis of Uman National University of Horticulture (UNUH). Methodology. The work investigated the process of heating and hot water supply in the course of 2007-2015 years. Implementation of current problems of energy saving is grounded on the scientific-practical and efficient assurance of fuel and energy usage. At the same time energy-saving technologies are viewed as a priority direction of the energy sector development, reduction of man-induced impact on the environment and as a way of improving the competitiveness of the national economy. Findings. Statistical data acquisition and analyzing of gas flow and outside air temperature for nine years was carried out. On the basis of this analysis, the problem was identified and specific targets for its solutions were set. Originality. Scientific novelty lies in solving the problem of energy saving and efficient use of fuel resources in Ukraine through the use of a systematic approach, the methodology development of efficient use of different fuels and optimization of local heating operation, applying contemporary automation and control systems. Firstly it was in detail analyzed and conducted the comprehensive assessment of various factors influence on energy conservation. It takes into account the human factor, professionalism and responsibility of the operators of boilers and their superiors, as well as the relevant control services. Practical value. For UNUH campus hybrid use of solid fuel and gas boilers was carried out. Decentralization of the university heating system has been conducted through the restoration of 350 individual heating systems in residential buildings, remote departments and campus dormitories. The conclusions propose the list of activities upon the real economy of fuel and energy resources, and measures to overcome the economic and political crisis in the country.

AbstractBackgroundThis study characterized the prevalence, drinking patterns, and sociodemographic characteristics of U.S. adult subpopulations with distinct drinking trajectories during the COVID‐19 pandemic's first 42 weeks.MethodsAdult respondents (n = 8130) in a nationally representative prospective longitudinal study completed 21 biweekly web surveys (March 2020 to January 2021). Past‐week alcohol drinking frequency (drinking days [range: 0 to 7]) and intensity (binge drinking on usual past‐week drinking day [yes/no]) were assessed at each timepoint. Growth mixture models identified multiple subpopulations with homogenous drinking trajectories based on mean drinking days or binge drinking proportional probabilities across time.ResultsFour drinking frequency trajectories were identified: Minimal/stable (72.8% [95% CI = 71.8 to 73.8]) with <1 mean past‐week drinking days throughout; Moderate/late decreasing (6.7% [95% CI = 6.2 to 7.3) with 3.13 mean March drinking days and reductions during summer, reaching 2.12 days by January 2021; Moderate/early increasing (12.9% [95% CI = 12.2 to 13.6) with 2.13 mean March drinking days that increased in April and then plateaued, ending with 3.20 mean days in January 2021; and Near daily/early increasing (7.6% [95% CI = 7.0 to 8.2]) with 5.58 mean March drinking days that continued increasing without returning to baseline. Four drinking intensity trajectories were identified: Minimal/stable (85.8% [95% CI = 85.0% to 86.5%]) with <0.01 binge drinking probabilities throughout; Low‐to‐moderate/fluctuating (7.4% [95% CI = 6.8% to 8%]) with varying binge probabilities across timepoints (range:0.12 to 0.26); Moderate/mid increasing (4.2% [95% CI = 3.7% to 4.6%]) with 0.39 April binge drinking probability rising to 0.65 during August–September without returning to baseline; High/early increasing trajectory (2.7% [95% CI = 2.3% to 3%]) with 0.84 binge drinking probability rising to 0.96 by June without returning to baseline. Males, Whites, middle‐aged/older adults, college degree recipients, those consistently working, and those above the poverty limit were overrepresented in various increasing (vs. minimal/stable) frequency trajectories. Males, Whites, nonmarried, those without college degree, 18 to 39‐year‐olds, and middle aged were overrepresented in increasing (vs. minimal/stable) intensity trajectories.ConclusionsSeveral distinct U.S. adult sociodemographic subpopulations appear to have acquired new drinking patterns during the pandemic's first 42 weeks. Frequent alcohol use assessment in the COVID‐19 era could improve personalized medicine and population health efforts to reduce drinking.

Baking industry plays one of the most important roles in the production of vital food products. The quality of the bakery products can be improved through the improvement of quality in technological process of dough kneading. A technical solution for providing greater contact with the environment, reducing the duration of the process, and, accordingly, increase productivity due to the developed design of a new machine with a cylindrical working body was proposed. The ways of regulating the course of the technological process in the working chamber of a new kneading machine are considered. They are based on the change of parameters: duration of kneading, temperature, humidity, rotation frequency of the working body. A method of calculating the required power based on the process of kneading the dough is proposed. It allowed obtaining a theoretical calculation of power consumption at unknown values of the friction forces action on the kneading drum, but the known frequency of its rotation with the corresponding design parameters and factors of influence. In addition, it makes possibility to determine the effort main components that affect to the power increase of the working body drive.

In this study, the characterization of several bacterial diseases affecting silver birch (Betula pendula Roth.), common ash (Fraxinus excelsior L.), white poplar (Populus alba L.), and white willow (Salix alba L.) in Ukraine were described. The typical symptoms, features of pathogenesis, and characteristics of the causative agents of the most common bacterial diseases of these tree species were shown. The following types of bacterioses were noted to be especially dangerous, namely, bacterial wetwood, fire blight, bacterial canker, and tuberculosis. Bacterial necrosis of the bark was a less dangerous disease. At the same time, all of the listed types of bacterioses were registered within the forest areas of the investigated region. The study revealed that bacterial wetwood of birch and poplar was caused by Lelliottia nimipressuralis; the bacterial canker of poplar is Pseudomonas syringae (Pseudomonas syringae f. populi and Pseudomonas cerasi); the fire poplar blight is caused by Pseudomonas cerasi (P. syringae); the common ash tuberculosis is caused by Pseudomonas syringae pv. savastanoi; and the bacterial wilt of the willow is caused by Brenneria salicis. The phenomenon of the introduction of microorganisms of different functional orientations as well as the formation of conditions for their activity in the rhizosphere of plants have been studied. In the future, it will provide the development of effective methods for the rapid identification of causative agents of bacterioses and plant protection measures based on multi-functional microbiological preparations based on highly effective strains of microorganisms.

The results of determining sugar beet hybrids economic and energy efciency technology growing depending on the use of fungicides and microfertilizers are presented. The research was conducted in 2020–2022 in the “Svitanok” Agrienterprise of Vasylkiv district, Kyiv region. Research was conducted with two sugar beet hybrids (Pushkin, Akatsia), three variants of microfertilizers (control, YaraVita Bortrac 150 (3 l/ ha), YaraVita Mancozin (1 l/ha)) and three schemes of fungicide application (Stefstrobin (0.6 l/ha) + Shtefozal (0.5 l/ha) + Shtilvet (0.1 l/ha); Tserkostef (0.5 l/ha) + Shtefstrobin (0.6 l/ha) + Shtilvet (0.1 l/ha); Cerkoshtef (0.5 l/ha) + Shtefozal (0.5 l/ha) + Shtilvet (0.1 l/ha )) were studied. The evaluation of the fungicides and microfertilizers economic efciency was determined according to the prices for the end of 2022 according to generally accepted methods. The technology of sugar beets growing is generally accepted for the zone of the Right Bank Forest Steppe, except for the methods that were put to study. It was established that in the structure of economic costs during the cultivation of sugar beets, a signifcant part is occupied by the use of mineral fertilizers – 23.7 %, fuel – 18.6 %, plant protection products – 16.3 %, seeds – 13.5 %. In the structure of energy costs, most of it belongs to fuel (27.8 %), mineral fertilizers (26.9 %), equipment (19.7 %) and labor costs (15.7 %). Energy costs for plant protection products and microfertilizers make 4.5 and 0.7 %. The Akatsia hybrid has higher proftability rates (53245.7 UAH/ha), proftableness (164.9 %) and energy efciency ratio (3.6) compared to the Pushkin hybrid (45462.2 UAH/ha, 147.6 % and 3.3). From an economic and energy point of view, the combined use of microfertilizers YaraVita Mancozin (1 l/ha) and fungicides Tserkoshtef, k. s. (0.5 l/ha) + Stefstrobin k.s. (0.6 l/ha)+ Stilvet (0.1 l/ha) is the most appropriate. Efciency, proftability and energy efciency ratio were 51491.3 and 60394.3 UAH/ha, 161.9 and 181.5 %, 3.58 and 3.94, respectively, for hybrids Pushkin and Acacia. Key words: sugar beets, fungicides, microfertilizers, hybrids, economic efciency, energy efficiency.