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Accumulation of polybrominated diphenyl ethers in breast milk of women from an e-waste recycling center in China

Journal of Environmental Sciences 2017年第2期29卷 305-313页

作者： Xinghong Li Yuan Tian Yun Zhang yujie ben Quanxia Lv State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center of Eco-Environment SciencesChinese Academy of Sciences Department of Environmental Science and Engineering Beijing Technology and Business University

Polybrominated diphenyl ethers（PBDEs） can be transferred to infants through the ingestion of breast milk, resulting in potential health risk. In this study, PBDEs, hydroxylated polybrominated diphenyl ethers（OH-PBDEs） and 2,2′,4,4′,5,6′-hexachlorobiphenyl（CB-153）in human milk from women living adjacent to e-waste recycling sites of Wenling,China, were investigated. The median level of PBDEs in samples from residents living in the e-waste recycling environment 〉 20 years（R20group, 19.5 ng/g lipid weight（lw））was significantly higher than that for residents living in Wenling 〈 3 years（R3group,3.88 ng/g lw）（p 〈 0.05）, likely ascribable to specific exposure to PBDEs from e-waste recycling activities. In the R20 group, most congeners（except for BDE-209） were correlated with each other（p 〈 0.05）. Moreover, CB-153 showed significant association with most PBDE congeners, rather than BDE-209. The relationship indicated that most BDE congeners other than BDE-209 shared common sources and/or pathways with CB-153, e.g., dietary ingestion. The correlations between BDE-209 and other congeners were different in the two groups, likely suggesting their different exposure sources and/or pathways for *** estimated dietary intake of PBDEs for infants via breast milk was lower than the minimum value affecting human health, the PBDE exposure of infants should be of great concern because of their potential effect on the development of neonates over long-term exposure. OH-PBDEs were not detected in the collected samples, which is in accordance with reports in published literature, likely indicating that they were not apt to be accumulated in human milk.

关键词： PBDEs OH-PBDEs Human milk E-waste

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Bioavailability and tissue distribution of Dechloranes in wild frogs(Rana limnocharis) from an e-waste recycling area in Southeast China

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Journal of Environmental Sciences 2014年第3期26卷 636-642页

作者： Long Li Wenyue Wang Quanxia Lv yujie ben Xinghong Li State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center of Eco-Environment SciencesChinese Academy of Sciences

Dechlorane Plus （DP）,a flame retardant used as an alternative to decabromodiphenylether, has been frequently detected in organisms, indicating its bioaccumulation and biomagnification potential in aquatic and terrestrial species. However, little data is available on the bioaccumulation of DP in amphibians. Dechlorane Plus and its analogs （DPs） were detected in the liver, muscle and brain tissues of wild frogs （Rana limnocharis）, which were collected from an e-waste recycling site, Southeast China. DP, Mirex, Dec 602 and a dechlorinated compound of DP （anti-Cll I-DP） varied in the range of 2.01-291, 0.650-179, 0.260-12.4, and not detected （nd）-8.67 ng/g lipid weight, respectively. No difference of tissue distribution was found for syn-DP, Mirex and Dec 602 between the liver and muscle tissue （liver/muscle concentration ratio close to 1, p 〉 0.05）. However, higher retention was observed for anti-DP and anti-Cll1-DP in the frog muscle relative to the liver tissue （liver/muscle concentration ratio 〈 1, p 〈 0.05）. Additionally, the blood-brain barrier was found to work efficiently to suppress these compounds entering brain tissues in this species （liver/brain concentration ratio 〉 l, p 〈 0.05）, and the molecular weight was a key factor impacting the extent of the blood-brain barrier. Compared to levels in the muscle and brain tissue, a preferential enrichment of syn-DP was observed in the liver tissue, suggesting the occurrence of stereo-selective bioaccumulation in the wild frog.

关键词： dechlorane plus and its analogs e-waste wild frogs

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考虑暴露高度和波流条件的筒基冲刷试验研究

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浙江大学学报（工学版） 2024年第11期58卷 2347-2354页

作者：岳鹏何奔李雨杰朱永强徐强国振浙江大学海洋学院浙江舟山316021 浙江大学海南研究院海南三亚572025 浙江省深远海风电技术研究重点实验室浙江杭州310058 浙江大学建筑工程学院浙江杭州310058 浙江大学海洋研究院浙江舟山316021

针对吸力式筒型基础负压沉贯过程中到位率低、筒顶暴露突出海床,基础易出现局部冲刷的问题,开展大断面波流水槽局部冲刷试验,研究不同暴露高度和波流条件下筒型基础的局部冲刷发展过程、最终冲刷形态及深度、冲刷平衡时间等特征规律.研... 详细信息

针对吸力式筒型基础负压沉贯过程中到位率低、筒顶暴露突出海床,基础易出现局部冲刷的问题,开展大断面波流水槽局部冲刷试验,研究不同暴露高度和波流条件下筒型基础的局部冲刷发展过程、最终冲刷形态及深度、冲刷平衡时间等特征规律.研究结果表明,纯流条件下,筒基周围冲淤沿来流方向对称分布,前后冲刷坑不贯通,最大冲刷深度往往出现在筒前.当暴露高度与筒径的比值为0.1,流速为0.3 m/s时,最大冲刷深度可达基础埋深的1/3.波流耦合作用时,掀砂能力增强,筒基周围出现砂纹地形,冲淤仍对称分布,最大冲刷坑深度达到冲淤平衡后会出现规律性波动.最大冲刷深度和极限冲刷平衡时间随着筒型基础暴露高度的增大而增加,提出考虑暴露高度的筒基极限冲刷平衡时间计算公式.

关键词：吸力筒基础局部冲刷波流耦合暴露高度冲刷特征冲刷平衡时间

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Mechanistic connotations of restriction of intramolecular motions(RIM)

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National Science Review 2021年第6期8卷 10-13页

作者： yujie Tu Zheng Zhao Jacky W.Y.Lam ben Zhong Tang Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute for Advanced Study and Department of Chemical and Biological EngineeringThe Hong Kong University of Science and Technology Center for Aggregation-Induced Emission SCUT-HKUST Joint Research InstituteState Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology AIE Institute Guangzhou Development District Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet

Molecules are all in constant motions,which influence their properties. For example, in photophysics, the light emission behavior of a luminogen is determined by its electronic and nuclear motions in the excited state. Flexible molecular motions usually favor nonradiative decay along with the transformation of excited-state energy to other forms such as thermal energy. Therefore,the restriction of intramolecular motions(RIM) is commonly adopted to achieve luminescent materials with high emission brightness.

关键词： AGGREGATION-INDUCED EMISSION CONICAL INTERSECTION

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生物启发膜在水系镁离子电池阴极的界面工程

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Science China Materials 2024年第8期67卷 2558-2566页

作者：洛古子呷苟倩志罗号燃陈昭宇邓江斌王凯鑫何玉婷李英芳王磊张奔郑玉杰李猛 National Innovation Center for Industry-Education Integration of Energy Storage Technology Xuefeng Mountain Energy Equipment Safety National Observation and Research StationMOE Key Laboratory of Low-Grade Energy Utilization Technologies and SystemsCQU-NUS Renewable Energy Materials&Devices Joint LaboratoryCollege of Energy&Power EngineeringChongqing UniversityChongqing 400044China Chongqing Windmagics Weichu Energy Co. Ltd.Chongqing 401121China Southwest Technology and Engineering Research Institute Chongqing 400039China

受到水合镁离子的高脱溶能垒和不良界面水分解行为的限制,水系镁离子电池通常受制于缓慢的离子传输动力学和严重的阴极溶解.为了克服这些障碍,受细胞膜两亲性结构的启发,我们成功构建了一种由疏水性聚(3,4-乙二氧基噻吩)(PEDOT)和亲水性... 详细信息

受到水合镁离子的高脱溶能垒和不良界面水分解行为的限制,水系镁离子电池通常受制于缓慢的离子传输动力学和严重的阴极溶解.为了克服这些障碍,受细胞膜两亲性结构的启发,我们成功构建了一种由疏水性聚(3,4-乙二氧基噻吩)(PEDOT)和亲水性α-MnO_(2)基底组成的MnO_(2)碳基阴极.结合实验和理论计算结果分析,PEDOT层可以有效提高整体电极的导电性,降低水合Mg^(2+)的脱溶能垒,并抑制阴极溶解,从而提高复合电极的性能.因此,本文所制备的复合电极表现出优越的速率性能(58.4mA hg^(-1),3Ag^(-1))和增强的长期循环稳定性(1000个循环后85.92mA hg^(-1),2Ag^(-1)),优于原始的α-MnO_(2)阴极.这项基于生物启发设计理念的工作将为水合镁离子电池的发展提供创新方向.

关键词：镁离子电池复合电极生物启发传输动力学循环稳定性界面工程脱溶能垒

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The Impacts of Urbanization on the Distribution and Body Condition of the Rice-paddy Frog(Fejervarya multistriata) and Gold-striped Pond Frog(Pelophylax plancyi) in Shanghai,China

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Asian Herpetological Research 2016年第3期7卷 200-209页

作者： ben LI Wei ZHANG Xiaoxiao SHU Enle PEI Xiao YUAN yujie SUN Tianhou WANG Zhenghuan WANG School of Life Science shanghai Key Laboratory of Urbanization and Ecological Restoration East China Normal University Shanghai 200062 China Shanghai Landscaping and City Appearance Administrative Bureau Shanghai 200040 China

Previous studies have suggested that urbanization presents a major threat to anuran populations. However, very few studies have looked at the relationship between urbanization and anuran body condition. We investigated whether the distribution and body condition of the rice-paddy frog（Fejervarya multistriata） and gold-striped pond frog（Pelophylax plancyi） are influenced by increasing urbanization in Shanghai, China. Four study sites with six indicators of the major land-cover types were scored to indicate their position on an urbanization gradient. We found that both the density and body condition of F. multistriata declined significantly along this gradient. Although we observed a significant difference in body condition of P. plancyi among study sites with different degrees of urbanization, we did not find any corresponding significant differences in population density. Our results indicate that both the densities and body condition of these two anuran species show a negative relationship with increasing urbanization, but that the density of P. plancyi was only slightly affected in Shanghai.

关键词： urbanization paddy indicators declined populations capture Figure habitat vegetation threat

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A New Record of Kaloula(Amphibia: Anura: Microhylidae) in Shanghai, China

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Asian Herpetological Research 2015年第3期6卷 240-244页

作者： Wei ZHANG ben LI Xiaoxiao SHU Hanbin XIE Enle PEI Xiao YUAN yujie SUN Tianhou WANG Zhenghuan WANG School of Life Science East China Normal University Shanghai Landscaping and City Appearance Administrative Bureau

We discovered a medium-sized species of narrow-mouthed frog of the genus Kaloula in June and September 2014 during municipal surveys of amphibians in Shanghai. Three narrow-mouthed frogs were collected in city drains of the Binjiang Forest Park, Shanghai. Based on subsequent examination and morphological characters, these specimens were identified as Kaloula borealis（Barbour, 1908）. The species was mainly distributed in Northern China and Korea. It is a new amphibian record for Shanghai. We found the visible differences in male secondary sexual characteristics between our specimens and Beijing specimens. K. borealis was first described inhabiting urban greenlands which could benefit amphibian conservation in urban and urbanizing areas.

关键词： Kaloula borealis Urban greenland Amphibian new record

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The China Multi-Model Ensemble Prediction System and Its Application to Flood-Season Prediction in 2018

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Journal of Meteorological Research 2019年第3期33卷 540-552页

作者： Hong-Li REN yujie WU Qing BAO Jiehua MA Changzheng LIU Jianghua WAN Qiaoping LI Xiaofei WU Ying LIU ben TIAN Joshua-Xiouhua FU Jianqi SUN Laboratory for Climate Studies & China Meteorological Administration-Nanjing University Joint Laboratory for Climate Prediction Studies National Climate Center China Meteorological Administration Beijing 100081 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 National Climate Center China Meteorological Administration Beijing 100081 School of Atmospheric Sciences/Plateau Atmosphere and Environment Key Laboratory of Sichuan Province Chengdu University of Information Technology Chengdu 610225 Institute of Atmospheric Sciences Fudan University Shanghai 200433

Multi-model ensemble prediction is an effective approach for improving the prediction skill short-term climate prediction and evaluating related uncertainties. Based on a combination of localized operation outputs of Chinese climate models and imported forecast data of some international operational models, the National Climate Center of the China Meteorological Administration has established the China multi-model ensemble prediction system version 1.0 (CMMEv1.0) for monthly-seasonal prediction of primary climate variability modes and climate elements. We verified the real-time forecasts of CMMEv1.0 for the 2018 flood season (June-August) starting from March 2018 and evaluated the 1991-2016 hindcasts of CMMEv1.0. The results show that CMMEv1.0 has a significantly high prediction skill for global sea surface temperature (SST) anomalies, especially for the El Nino-Southern Oscillation (ENSO) in the tropical central-eastern Pacific. Additionally, its prediction skill for the North Atlantic SST triple (NAST) mode is high, but is relatively low for the Indian Ocean Dipole (IOD) mode. Moreover, CMMEv1.0 has high skills in predicting the western Pacific subtropical high (WPSH) and East Asian summer monsoon (EASM) in the June-July-August (JJA) season. The JJA air temperature in the CMMEv1.0 is predicted with a fairly high skill in most regions of China, while the JJA precipitation exhibits some skills only in northwestern and eastern China. For real-time forecasts in March-August 2018, CMMEv1.0 has accurately predicted the ENSO phase transition from cold to neutral in the tropical central-eastern Pacific and captures evolutions of the NAST and IOD indices in general. The system has also captured the main features of the summer WPSH and EASM indices in 2018, except that the predicted EASM is slightly weaker than the observed. Furthermore, CMMEv1.0 has also successfully predicted warmer air temperatures in northern China and captured the primary rainbelt over northern China,

关键词： multi-model ensemble China multi-model ensemble prediction system (CMME) real-time forecast skill assessment

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类、人类与人权的起源和基础

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中国社会科学院研究生院学报 2014年第3期 115-119页

作者：邱本康宇杰温州大学法政学院中国社会科学院研究生院法学系中南财经政法大学法学院

"类"是与"人"字相提并论的另一个词,合称"人类",这一合称深刻而充分地揭示了人的本性,即人的"类本性"。人是"类存在物",人具有"类本质"、"类意识",人要过"类生活"、要"类化"。从"类"可以探求到人权的起源和基础。

关键词：类人类人权

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白头翁药理作用及机制研究进展

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药物评价研究 2024年第7期47卷 1421-1432页

作者：苑仁祎坤王琴琴何佳倪兴华刘璟钰宁玉洁谢晓芸刘丽娜肖琳钰杨世林高红伟广西中医药大学药学院广西南宁530200 广西中药与壮瑶药创新药教育部工程中心广西南宁530200 江西中医药大学药学院江西南昌330008

白头翁是毛茛科白头翁属植物白头翁Pulsatilla chinensis的干燥根,是常用的传统中药,始载于《神农本草经》,气味微苦涩,具有清热解毒之功效。白头翁提取物及有效部位对肺癌、肠癌、肝癌、胃癌、卵巢癌、白血病、黑色素瘤等均表现出明显... 详细信息

白头翁是毛茛科白头翁属植物白头翁Pulsatilla chinensis的干燥根,是常用的传统中药,始载于《神农本草经》,气味微苦涩,具有清热解毒之功效。白头翁提取物及有效部位对肺癌、肠癌、肝癌、胃癌、卵巢癌、白血病、黑色素瘤等均表现出明显的抗肿瘤作用,可显著抑制肿瘤细胞的生长及转移,其抗肿瘤的主要有效部位为白头翁皂苷。白头翁皂苷及提取物对动脉粥样硬化、心肌炎、高血压等心血管疾病,慢性阻塞性肺疾病和哮喘等呼吸系统疾病,银屑病、系统性红斑狼疮、类风湿性关节炎等自身免疫性疾病,阿尔茨海默病、帕金森病等神经系统疾病具有保护作用。白头翁提取物及有效部位的其他作用还有抗衰老、抗菌、抗病毒、降血糖等。综述了白头翁提取物及有效部位的药理作用及研究现状,以期为白头翁的进一步研究及新药研发提供理论基础。

关键词：白头翁抗肿瘤抗炎心血管疾病自身免疫性疾病神经系统疾病抗菌抗病毒

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