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Measuring inclusive wealth of China: Advances in sustainable use of resources 期刊论文
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2020, 卷号: 264, 页码: 12
作者:  Wang Jingyu;  Bai Yuping;  Yihzong, Wurihan;  Li Zhihui;  Deng Xiangzheng
收藏  |  浏览/下载：8/0  |  提交时间：2021/03/23
食用蔬菜能吸收和积累微塑料 期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
收藏  |  浏览/下载：63/0  |  提交时间：2020/06/17
微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.  
The effects of foreign strategic investors on pricing of wealth management products of commercial banks in China: Does ownership structure matter? 期刊论文
Journal of Applied Business Research, 2018, 卷号: 34, 页码: 193-208
作者:  Zhao, Hong;  Zhao, Xueyan;  Hou, Ning
收藏  |  浏览/下载：2/0  |  提交时间：2019/11/19
中金公司财富管理业务模式研究 学位论文
2016, 2016
詹伟明
收藏  |  浏览/下载：7/0  |  提交时间：2017/06/20
中国主权财富基金对外股权投资风险管理研究 学位论文
2016, 2016
汪珊珊
收藏  |  浏览/下载：3/0  |  提交时间：2017/06/20
Classical mean-variance model revisited: pseudo efficiency 期刊论文
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY, 2015, 卷号: 66, 期号: 10, 页码: 1646-1655
作者:  Cui, Xiangyu;  Duan, Li;  Yan, Jiaan
收藏  |  浏览/下载：15/0  |  提交时间：2018/07/30
Classical mean-variance model revisited: pseudo efficiency 期刊论文
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY, 2015, 卷号: 66, 期号: 10, 页码: 1646-1655
作者:  Cui, Xiangyu;  Duan, Li;  Yan, Jiaan
收藏  |  浏览/下载：3/0  |  提交时间：2019/08/22
中國大陸台資銀行營運策略研究 学位论文
2015, 2015
帥澤明
收藏  |  浏览/下载：2/0  |  提交时间：2016/02/23
海外投资银行财富管理业务模式研究 学位论文
2015, 2014
尚震宇
收藏  |  浏览/下载：4/0  |  提交时间：2016/02/23
我国商业银行财富管理业务发展研究 学位论文
2015, 2015
梁凌
收藏  |  浏览/下载：2/0  |  提交时间：2016/02/23

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