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Analysis of social networks is one of the promising areas of research. In addition to the development of a mathematical apparatus that allows processing the extracted data, it is of interest to identify new characteristics of user interaction. In the case of researching social networks, one of the important problems is the definition of a digital portrait of a user based on the consolidation and preliminary processing of open data from his profiles. To solve this problem, the authors previously proposed a model fo...

Land resources are the main means of production and a factor of socio-economic development and ecological sustainability of environment[1]. The condition of soils is one of the main indicators of the ecological state of the territories, because of the direct impacts from internal factors, which are caused by the use of soils in agricultural production[2] and external influences caused by anthropogenic activities[3]. Unsatisfactory condition of the soil cover in Ukraine, which is confirmed in scientific works of th...

The problem of increasing the energy efficiency of the national economy is the most important for countries with developing economies. For example, in the Republic of Ecuador (RE), the average GDP growth rate was 5.73% over 2010-2019. This requires high-quality development of the energy sector to ensure sustainable development of the national economy. The power generation structure in RE is not optimal because the share of oil is 87%, while the share of hydro resources is 6%. For RE, this reduces the efficiency of...