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Выполнен обзор исследований в области разработки и применения магнезиальных цементов. Указаны их преимущества и недостатки. Особое внимание уделено составам, предназначенным для крепления глубоких нефтяных и газовых скважин в солесодержащих разрезах. Показана возможность крепления скважин в многолетнемёрзлых породах с использованием магнезиального вяжущего. Ключевые слова; магнезиальный цемент, крепление скважин, солесодержащий разрез, многолетнемёрзлые породы. Review of research in the field of magnesia cements development and usage was carried out. Their advantages and disadvantages are described. Much attention has been given to compositions for deep oil and gas well casing in salt-containing crosssection. An opportunity that the magnesia cements can be used for casing in permafrost is showed.

This research is aimed at studying the importance of digitalization for ensuring the competitiveness of the agroindustrial complex of the Russian Federation. The article deals with theoretical and applied issues of innovative development of the agriculture sector. Reveals the ways of traditional agroindustrial systems. Digital tools are transforming the way agribusiness knowledge and information is managed at all levels.

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The article deals with the problems of interaction between enterprises and consumers in the conditions of increasing market competition. The directions of loyalty increase are developed taking into account the peculiarities of the company’s position in the market. For a successful company, it is necessary to constantly monitor brand awareness, analyze the factors that contribute to increasing brand attractiveness, develop comprehensive measures to build brand loyalty and evaluate the effectiveness of their implementation. Therefore, the problem of assessing customer loyalty as a starting point of its formation is of particular importance. The use of various assessment models allows you to identify the most effective tools and methods of influence, to identify key areas of investment in the marketing budget, which is especially important in the conditions of the need for savings.