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Biodiversity analysis underlies macroevolutionary studies and allows to identify mass extinctions. Numerous studies of mass extinctions show that geological factors play a central role in determining the diversity dynamics. The late Cretaceous extinction is of interest to science as the closest to us extinction of the five mass extinctions that occurred in the Phanerozoic. There is currently no scientific consensus on the scenario in which the extinction occurred on land. In order to assess the features of superorderDinosauriadevelopment during the Cretaceous-Paleogene, the authors have analysed the diversity of terrestrial taxa of Mesozoic dinosaurs. Based on data from the paleobiodb paleontological database using the Python programming language and its libraries, the features of the species diversity ofDinosauriahave been studied. An attempt was made to quantify the species diversity of this group based on the ratio of predators to herbivores using data on dinosaur food types. The simulated diversity data were compared with observed patterns and existing estimates. It is likely that less than one-third of the dinosaurs that existed are currently known, as indicated by the geography of the fossils, and the proportions of dinosaurs by type of diet.

Sub-District Panarukan, Distric of Situbondo has many food processing and non-food processing centers based on marine resources, all of which reaches 197 business units which include: Craft, Fish Cracker, Fish Chips, Shrimp paste and rengginang fish. The socio-economic phenomena of coastal communities should provide added value, absorb a lot of unemployment, but the people are still not prosperous in economically. The purposes of this study are to: Analyze the value added of resource-based on agroindustry, and to know the opportunity of marine resource development based agroindustry. The type of research used is descriptive with survey technique. Furthermore, the excavated data consists of qualitative and quantitative data which collected by using depth interview technique and the determination of respondents is done by simple random sampling technique. In order to answer the first, and second, the Hayami value-added analysis, and cost efficiency (R/C-Ratio) are used. The result of the research revealed that the ratio of added value of agribusiness activity of marine basis is 37,5% (value added ratio 15% - 40%), then the added value is classified. While the business opportunity of agribusiness activity in the research area is very big which indicated the value of R / C reach 1.95. If marine resource-based agroindustry activities in the research area are intervened with a touch of modern science-based management, then the value-added ratio potentially reaches more than 40% (> 40% high added value categories).

The concept of the “Energy strategy of Russia for the period up to 2035” implies a comprehensive structural transformation of the energy sector and its transition to a qualitatively new level through the use of digital technologies. One of the first steps in building a model of the Internet of energy in Russia may be the introduction of a mechanism for creating industrial microgrids, for which a draft resolution of the government of the Russian Federation has already been developed. The article considers the features of functioning of a new subject of electric power industry - active energy complexes, their conceptual, economic and legal features, and also developed a method for evaluating the system effects of their implementation.

At the present stage of the transition to sustainable development, when the share of a green economy in technologically advanced countries reaches one third of GDP, overcoming the structural crisis of the Russia is inseparable from reducing the technological gap and structural imbalances in the economy. These imbalances alienate Russia from ecologically and technologically advanced countries. Therefore, it is highly relevant to develop a methodology for assessing the structural convergence of the economy in the context of the transition to sustainable development, accompanied in developed countries by a new type of structural shift caused by the expansion of convergent technologies, the emergence of new principles of sectoral genesis and the formation of a green economy. The deepening of the divergent nature of Russian economy development was the result of a series of negative structural shifts that consolidated the dominance of extractive and resource-intensive industries, which threaten the final loss of technological identity, consolidation of the recessive trend and a lag in the transition to sustainable development. Therefore, today it is extremely important to formulate a methodology for assessing the structural convergence of Russian economy with technological and ecologically advanced countries, taking into account both quantitative and qualitative aspects.

The coal mining enterprise is a high-tech complex, which at the same time exerts all kinds of negative impact on the environment (emissions of pollutants into the air, wastewater discharges, production and consumer waste disposal). To improve environmental safety, it is necessary to study the local environmental and economic system and its main elements in order to improve managerial efficiency. The known approaches to the definition and the features of local environmental and economic system functioning are analyzed in the article. The directions for improving the efficiency of local eco-economic “industrial enterprise-environment” system management were developed on the basis of the synthesis of the study of theoretical developments of domestic and foreign researchers and the analysis of factual data. The work done is of practical importance for large industrial enterprises that exerts a diversified negative impact on the environment for preparing to the efficient sustainable managerial decisionmaking.

The article presents the results of the study of the main categories of losses for the elements of irrigation systems, shows the experience of using pumping equipment on irrigation systems, discussed methods for increasing the volumetric efficiency, improving the hydraulic conditions for supplying flow to the impeller and reducing cavitation. The purpose of the research is the scientific substantiation of the usage of samples of modern pumps, in modern water-lifting systems in the context of import substitution programs with innovation technology. The results of the study of the main categories by irrigation system elements are presented, the experience of pumping equipment use on irrigation systems is described, the methods for increasing the volumetric efficiency, for improving the hydraulic conditions for supplying the flow to the impeller and reducing the cavitation wear are examined in the article. The complex solution of such problems as the increasing the efficiency of the pumping equipment was proposed, which allowed to increase the actual performance factor of the given pump from 83 to 88 %, compared to the factory data.

In recent years, in order to promote the independent development of the new energy vehicle industry, Chinese government has decided to reduce the consumption subsidies for new energy vehicles until the subsidies are completely withdrawn. The reduction of consumption subsidy has a great impact on the production and sales of new energy vehicles in the whole vehicle market. However, does the reduction of this subsidy also have an impact on other enterprises in the new energy vehicles industry chain? This paper tests this problem using data from 2016 to 2018, and finds, through empirical analysis, that during the period of subsidy decline, the profitability of component enterprises is significantly positively correlated with this subsidies, while the r&d investment of enterprises is significantly negatively correlated with this subsidies. The results show that in terms of profitability, the reduction of consumer subsidies not only has an impact on the whole vehicle industry of new energy vehicles, but also has an adverse impact on the core component companies in the industrial chain. However, in terms of r&d, the reduction of subsidies has more negatively strengthened the input and attention of R&D in component companies.

Balok River is one of the rivers in the southern part of Belitung Island, which empties into Balok Bay. This bay forms wide and sheltered water in which it is directly connected to the Java Sea. This paper aims to provide an overview of the past maritime relationship pattern along the Balok River and the surrounding waterfront environment. This study examines existing data from archaeological research conducted by South Sumatra Archaeological Research Office and the National Archaeological Research Center from 2011 to 2021. Archaeological remains such as ceramic artifacts from China, Southeast Asia, and Europe showed that these regions had been involved in long-distance international trade networks. Regional contact with outsiders is also proved by findings of pottery shreds such as jug and roof tile fragments that were not produced locally in the Belitung area. Oral history reveals that there was once arouse a kingdom named the Balok Kingdom along this river. This kingdom raised in the sixteenth century. Nevertheless, dwellings from the period before the Balok Kingdom’s existence is unknown. The toponym along the Balok River also indicates topographical features associated with maritime culture, namely Pangkalan. This toponym probably refers to the docks in the past. At this time, places using pangkalan toponyms are still functioned as boat mooring places by Balok Villagers and its surroundings. Balok River is the main route for people to the sea for fishing