Background: The open sharing of large-scale scientific instruments is critical for national innovation and reflects a core principle of the circular economy. While China has invested heavily in creating a national instrument sharing network, methods for evaluating the overall health and sustainability of this complex ecosystem are underdeveloped, often focusing on simple efficiency metrics while ignoring system-wide resilience.

Methods: This study introduces Ecological Network Analysis (ENA) as a novel framework to assess the sustainability of China's scientific instrument sharing system. We constructed a network model representing the flow of instrument use-time among three key sectors (universities, public research institutes, and enterprises) using benchmark data from the National Network for Scientific Instrument Sharing from 2020 to 2024. We then calculated the system's ascendency—a comprehensive, information-theory-based measure that quantifies the balance between organized efficiency (growth and development) and redundant flexibility (resilience).

Results: The analysis revealed a steady increase in the system's total sharing activity (Total System Throughput) over the five-year period. However, the ratio of ascendency to total development capacity (A/C) showed a significant upward trend, while the overhead-to-capacity ratio (Φ/C) declined. This indicates that the network is evolving towards higher efficiency but at the cost of decreasing resilience. Public research institutes were identified as the keystone sector, contributing most significantly to the network's organized structure.

Conclusion: Applying ascendency analysis provides a holistic, quantitative measure of the sustainability of resource-sharing networks. Our findings suggest that current policies governing China's instrument sharing system may be prioritizing short-term efficiency gains over long-term systemic resilience. We recommend that policymakers adopt a more balanced approach, using ascendency-based metrics to foster a sharing ecosystem that is not only efficient but also robust and adaptive.

Regional institutions are central to managing Russia's and China's energy interests, two of the world's largest powers with complementary economic and geopolitical interests. Providing multilateral platforms of dialogue, cooperation, and conflict management, regional institutions facilitate potential tensions while securing mutual interests in the energy sector. This article explains how regional institutions facilitate cooperation and manage competition, promoting stability in one of the world's most strategic sectors. The study also emphasizes major regional institutions such as the Shanghai Cooperation Organization (SCO), Eurasian Economic Union (EAEU), and the Asia-Pacific Economic Cooperation (APEC), examining their mechanism of harmonization of Russian and Chinese energy policies. It argues that these institutions not only advance collective energy security but are also power-bargaining platforms, thereby sustaining regional stability and enabling sustainable economic development.

This article analyzes the concept of environmental ethics and law and its foundations, the participation of environmental law in protecting the rights of citizens in its implementation, problems associated with the civil approach to environmental law and proposals for their solution, as well as its prospects and civil legal foundations. A comparative analysis of international experience and national legislation is carried out, and scientific conclusions are drawn on the development of civil approaches to environmental ethics and law enforcement.

This article provides a systematic analysis of the role and capabilities of artificial intelligence technologies in public oversight and expertise processes. The research examines the experiences of developed countries such as Estonia, Singapore, and Germany in the field of digital public oversight. The activities of the «Regulation.gov.uz» and «Meningfikrim.uz» platforms implemented in Uzbekistan and ways to improve them are considered. The author substantiates the advantages of artificial intelligence in improving the quality of normative legal documents, ensuring transparency in decision-making processes, and expanding public participation. The article provides specific proposals for introducing amendments to the Law «On Normative Legal Documents».