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Green insurance (GI), as an innovative product integrating environmental protection and the financial sector, not only contributes to improving regional environmental quality (EQ) but also enhances corporate environmental risk management and awareness, driving the flourishing development of green finance and the environmental protection industry. Therefore, understanding the relationship between GI and EQ is crucial. This article delves into the mechanisms through which GI influences EQ, proposing a hypothesis that suggests an inverted "U" shape impact. Subsequently, based on panel data from 30 provinces in China spanning from 2000 to 2021, nonlinear regression models and threshold regression models were constructed to test the hypothesis. The research findings indicate: (1) Results from the fixed-effects regression model demonstrate that the impact of GI on China's EQ follows an inverted "U" shape. (2) Results from the threshold regression model also reveal an inverted "U" shape impact of GI on China's EQ, with a threshold value of 2.196. (3) Economic level and industrial structure exhibit significant inhibitory effects on EQ improvement. Technological level and environmental regulations demonstrate notable promotional effects. Population size shows no significant impact on EQ improvement. The study identifies a nonlinear effect of GI on EQ improvement, surpassing existing linear effect research, deepening the understanding of its impact on EQ, and contributing to the enhancement of regional EQ. [ABSTRACT FROM AUTHOR]

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Introduction: Breast cancer remains a significant global health challenge, accounting for 2.3 million new cases in 2020 and ranking as the most prevalent cancer by incidence and the fourth in cancer-related mortality worldwide. In China, breast cancer also rapidly increases incidence and burden. The research of exosomes in breast cancer has attracted more and more attention and has a rapid development. Recognizing the pivotal role of exosomes in breast cancer research, we have undertaken a comprehensive scientometric analysis of pertinent scholarly articles published over the past decade to elucidate the current research landscape for researchers. Methods: In this study, we gathered all pertinent publications from the Web of Science. Biblioshiny (a web interface for Bibliometrix), VOSviewer software, and CiteSpace software were used to analyze the information on publications, including global trends, countries, institutions, journals, authors, keywords, and citations. Results: A total of 1,239 articles and 625 review articles were retrieved. The annual global publication output has an increased trend in recent decades overall. China contributed the most articles. The publications of the USA had the most total link strength. Nanjing Medical University had the most total link strength. The most relevant source was the International Journal of Molecular Sciences. Tang JH contributed the most articles and had the highest H-index, Gindex, and total link strength. The most cited document was "Tumor exosome integrins determine organotropic metastasis", with 2730 citations. The basic themes included "exosomes", "expression", "cells", "identification", "biomarkers", and "serum". The keyword "membrane vesicle" had the strongest bursts. The keywords "target", "biology", "suppressor cell", "molecular mechanism", "tumor progression", "inhibitor", and "model" appeared as prominent focal points in current research and active areas of exploration. Conclusion: Over the past decade, exosome research in breast cancer has undergone a discernible evolution, shifting from broader investigations of exosome roles to focused exploration of specific pathways relevant to breast cancer. Notably, the emphasis has extended to the clinical application of exosomes as biomarkers and potential therapeutic agents in breast cancer treatment. [ABSTRACT FROM AUTHOR]

Based on the statistical data of land use change, friom the perspective of sustainable use, we use literiaturie inquiriy, statistical analysis, GIS spatial analysis and dynamic degriee model of land use, to analyze the land use change chariacteristics, land use amount ad spatial distribution chariacteriistics in Guangzhou City during 1996 - 2012, and furitheri elaboriate the driving forices of land use change to get the basic law of land use change in Guangzhou City. The riesults show that the constriction land was riapidly expanded, causing a significant rieduction in ariable land (friom 129286 ha in 1996 to 84567 ha in 2012); in construction land, the land fori riesidential, industrial and mining use and triasporiation land driamatically incrieased, and the single dynamic degriee of triansporitation land was close to 7.1%. In comparison with otheri developed cities, it is found that economic factoris a d policy factoris arie imporiant factoris afecting land use chage in Guangzhou City, and the griowth riate of economic density of land was high in Tianhe District and Yuexiu District. Friom the perispective of sustainable use, the futurie land use in Guagzhou City needs to betteri cooridinate the rielationship between various types of land, between socio-economic development and cooridinated land use development, between envirionmental priotection a d land development and utilization. Thriough a seriies of land consolidation activities, it is necessariy to strengthen the priotection of farmland, impriove the intensive and economical use of constriction land, impriove the ecological envirionment, and cooridinate development of uriban and riurial areas, to ultimately achieve sustainUe land use in Guangzhou City. [ABSTRACT FROM AUTHOR]