Cross-regional locality research reflects the influences of natural environment and the human activities due to the abundant land types and the multiple landscape combinations in related regions. The Chinese farming-p...Cross-regional locality research reflects the influences of natural environment and the human activities due to the abundant land types and the multiple landscape combinations in related regions. The Chinese farming-pastoral ecotone is a typical large-scale region but few studies were conducted. This research contributed to the understanding of cross-regional locality of the Chinese farming-pastoral ecotone from different scales, including national, sectional, and provincial administrative units by utilizing geotagged photos（GTPs） obtained from the Panoramio website. The major results were as follows：（1） the locality elements of the Chinese farming-pastoral ecotone included 52 free nodes classified into 8 types of scene attributes;（2） there were huge differences between locality elements of different regions, and there was a negative correlation between the similarity degree of elements of different provinces and their spatial distances;（3） the Chinese farming-pastoral ecotone could be divided into the northern, central and southern sections, whose localities had differences in element constitution, association structure and the strength of elements, system stability and the anti-interference capability; and（4） the evolution of the localities of the northern and central sections was mainly influenced by human activities, while the locality of southern section retained more natural features. On a theoretical level, this research aimed to establish the research methodology of locality from the perspective of open data on the web with strong operability and replicability. On a practical level, this research could enrich the structuring recognition of the locality of the Chinese farming-pastoral ecotone and the comprehension of its dynamic mechanism. The results provide a reference for locality differentiation protection and the development of a cross-regional scale.展开更多
2008年全球金融危机后,国际社会愈发重视金融担保品在维护金融稳定中发挥的重要作用,新兴市场证券逐步走入国际视野。在此背景下,2021年,国际货币基金组织(IMF)发表了工作论文《新兴市场证券加入全球金融管网》(Emerging Market Securit...2008年全球金融危机后,国际社会愈发重视金融担保品在维护金融稳定中发挥的重要作用,新兴市场证券逐步走入国际视野。在此背景下,2021年,国际货币基金组织(IMF)发表了工作论文《新兴市场证券加入全球金融管网》(Emerging Market Securities Access to Global Plumbing),从金融担保品跨境转移的经济学视角,提出了对促进新兴市场证券加入全球金融管网的思考和建议。中央结算公司征得IMF授权,翻译该论文,希望为人民币债券担保品加入全球金融管网带来启发。展开更多
Advanced glycation end products(AGEs), which are macromolecular material such as proteins, lipids, and nucleic acids free amino and reducing sugar on the reaction of aldehyde group under the condition of the enzyme, g...Advanced glycation end products(AGEs), which are macromolecular material such as proteins, lipids, and nucleic acids free amino and reducing sugar on the reaction of aldehyde group under the condition of the enzyme, generate the stable compounds. AGEs formation is enhanced in diabetes and is associated with the development of diabetic complications. AGEs, as an important marker of chronic complications of diabetes mellitus, plays an important role in the development and progression of diabetic nephropathy. In the current review, we discuss mechanisms and the role of AGEs in diabetic nephropathy.展开更多
基金supported by the Sino-German Center (the National Natural Science Foundation of China and the German Science Foundation GZ1201)the Postgraduate Courses Project of Peking University (2014-40)
文摘Cross-regional locality research reflects the influences of natural environment and the human activities due to the abundant land types and the multiple landscape combinations in related regions. The Chinese farming-pastoral ecotone is a typical large-scale region but few studies were conducted. This research contributed to the understanding of cross-regional locality of the Chinese farming-pastoral ecotone from different scales, including national, sectional, and provincial administrative units by utilizing geotagged photos（GTPs） obtained from the Panoramio website. The major results were as follows：（1） the locality elements of the Chinese farming-pastoral ecotone included 52 free nodes classified into 8 types of scene attributes;（2） there were huge differences between locality elements of different regions, and there was a negative correlation between the similarity degree of elements of different provinces and their spatial distances;（3） the Chinese farming-pastoral ecotone could be divided into the northern, central and southern sections, whose localities had differences in element constitution, association structure and the strength of elements, system stability and the anti-interference capability; and（4） the evolution of the localities of the northern and central sections was mainly influenced by human activities, while the locality of southern section retained more natural features. On a theoretical level, this research aimed to establish the research methodology of locality from the perspective of open data on the web with strong operability and replicability. On a practical level, this research could enrich the structuring recognition of the locality of the Chinese farming-pastoral ecotone and the comprehension of its dynamic mechanism. The results provide a reference for locality differentiation protection and the development of a cross-regional scale.
文摘2008年全球金融危机后,国际社会愈发重视金融担保品在维护金融稳定中发挥的重要作用,新兴市场证券逐步走入国际视野。在此背景下,2021年,国际货币基金组织(IMF)发表了工作论文《新兴市场证券加入全球金融管网》(Emerging Market Securities Access to Global Plumbing),从金融担保品跨境转移的经济学视角,提出了对促进新兴市场证券加入全球金融管网的思考和建议。中央结算公司征得IMF授权,翻译该论文,希望为人民币债券担保品加入全球金融管网带来启发。
文摘Advanced glycation end products(AGEs), which are macromolecular material such as proteins, lipids, and nucleic acids free amino and reducing sugar on the reaction of aldehyde group under the condition of the enzyme, generate the stable compounds. AGEs formation is enhanced in diabetes and is associated with the development of diabetic complications. AGEs, as an important marker of chronic complications of diabetes mellitus, plays an important role in the development and progression of diabetic nephropathy. In the current review, we discuss mechanisms and the role of AGEs in diabetic nephropathy.
