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Polybrominated biphenyl exposure and thyroid function tests in electronic waste dismantling and general population of Chinese adults

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Emerging Contaminants 2024年第1期10卷 72-79页

作者： Shijie Wang jingxi jin Zhitong Zhang Chen Guo Zhigang Li Jicheng Hu Ying Wang Yongjie Wei jun jin College of Life and Environmental Sciences Minzu University of ChinaBeijing 100081China Department of Laboratorial Science and Technology School of Public HealthPeking UniversityBeijing 100191China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Engineering Research Center of Food Environment and Public Health Beijing 100081China Center for Global Health School of Public HealthNanjing Medical UniversityChina

This study aimed to determine the concentration of 35 PBB(polybrominated biphenyls)congeners in the human serum of residents from an electronic waste(e-waste)dismantling area compared to a control area in ***,four thyroid hormones,namely FT3,FT4,TSH,and TRH,were also *** findings revealed that the total PBB concentrations(sum of the 35 PBB congeners)ranged from 47.1 to 1360 ng/g lipid in the e-waste area and 105–1980 ng/g lipid in the control ***-1 and BB-10 were the dominant congeners in both study areas,followed by *** to the e-waste dismantling area,the control area samples had a significantly higher concentration of less-brominated(Br1–3)PBBs,including the concentrations of less-brominated congeners such as BB-1,BB-4,BB-9,and BB-10,which were significantly higher than those in the e-waste dismantling ***,more-brominated hexabromobiphenyl congeners BB-153,BB-154 and BB-155 were found in samples from the e-waste dismantling area at significantly higher concentrations than in the control area.E-waste dismantling areas have released historically produced commercial PBB products,but equally not negligible is the exposure of the general population to newly produced PBB *** concentrations in the e-waste dismantling area samples decreased with increasing age,while they increased with increasing age in the control area ***,stepwise multiple regression analysis showed a significant association between BB-103 concentrations and thyroid hormone *** addition,BB-103 has the potential to interfere with the binding of T3 and thyroid hormone receptors(TR).Given these findings,the research on human exposure of PBB and the relationships between the PBB and thyroid hormones should be studied further.

关键词： Polybrominated biphenyls Human serum E-waste Thyroid hormone Human exposure

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Tunable Dendritic Ligands of Chiral 1,2-Diamine and Their Application in Asymmetric Transfer Hydrogenation

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有机化学 2004年第Z1期24卷 49-50页

作者： LIU,Wei-Guo CUI,Xin CUN,Lin-Feng WU,jun ZHU,jin DENG,jin-Gen Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 Key Laboratory of Asymmetric Synthesis & Chirotechnology of Sichuan Province and Union Laboratory of Asymmetric Synthesis Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041

　　Dendrimers are perfect monodisperse macromolecules with a regular and highly branched three-dimensional architecture, so their unique physical and chemical properties are noticed and utilized more and more.[1] The dendrimer architecture can offer a means of better controlling the disposition of the catalytic species in soluble polymer-based catalysts and such novel catalysts of nano-scale size may aid the recycling of catalysts simply by supra-filtration or solvent precipitation methods.……

关键词： precipitation methods chemical properties

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Study on the Absorption Properties of C_(60) in Micellar Aqueous Solutions and Mechanisms for Solubilisation

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Chinese Chemical Letters 1999年第2期10卷 161-164页

作者： jin Li QIAO Wei jun jin Chuan DONG Chang Song LIU(Department of Chemistry, Shanxi University. Taiyuan, 030006)(Taiyuan Technology University, Taiyuan, 030021) Department of Chemistry Shanxi University Taiyuan 030006 China Taiyuan Technology University Taiyuan 030021 China

C60 is successfully solubilized in micelle of six kinds of surfactants and UV/Vis spectra ofC60 in micellar system are studied. It is found that Brij-35 is the most efficient surfactant forsolubilization of C60 and the possible states of C60 existed in surfactants are also *** of surface tension show that the sites for solubilization of C60 not only depend on thesorts of surfactants but also on their structures.

关键词： C_(60) absorption micelle solubilization

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Bioinformatics analysis of ferroptosis in spinal cord injury

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Neural Regeneration Research 2023年第3期18卷 626-633页

作者： jin-Ze Li Bao-You Fan Tao Sun Xiao-Xiong Wang jun-jin Li Jian-Ping Zhang Guang-jin Gu Wen-Yuan Shen De-Rong Liu Zhi-Jian Wei Shi-Qing Feng International Cooperation Base of Spinal Cord Injury Tianjin Key Laboratory of Spine and Spinal Cord InjuryDepartment of OrthopedicsTianjin Medical University General HospitalTianjinChina Department of Orthopedics Qilu Hospital of Shandong UniversityJinanShandong ProvinceChina Shandong University Centre for Orthopedics Advanced Medical Research InstituteCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina

Ferroptosis plays a key role in aggravating the progression of spinal cord injury(SCI),but the specific mechanism remains *** this study,we constructed a rat model of T10 SCI using a modified Allen *** identified 48,44,and 27 ferroptosis genes that were differentially expressed at 1,3,and 7 days after SCI *** with the sham group and other SCI subgroups,the subgroup at 1 day after SCI showed increased expression of the ferroptosis marker acyl-CoA synthetase long-chain family member 4 and the oxidative stress marker malondialdehyde in the injured spinal cord while glutathione in the injured spinal cord was *** findings with our bioinformatics results suggested that 1 day after SCI was the important period of ferroptosis *** analysis identified the following top ten hub ferroptosis genes in the subgroup at 1 day after SCI:STAT3,jun,TLR4,ATF3,HMOX1,MAPK1,MAPK9,PTGS2,VEGFA,and ***-time polymerase chain reaction on rat spinal cord tissue confirmed that STAT3,jun,TLR4,ATF3,HMOX1,PTGS2,and RELA mRNA levels were up-regulated and VEGFA,MAPK1 and MAPK9 mRNA levels were *** potential compounds were predicted using the DSigDB database as potential drugs or molecules targeting ferroptosis to repair *** also constructed a ferroptosis-related mRNA-miRNA-lncRNA network in SCI that included 66 lncRNAs,10 miRNAs,and 12 *** results help further the understanding of the mechanism underlying ferroptosis in SCI.

关键词： bioinformatics drug ferroptosis Gene Ontology enrichment analysis gene-miRNA network Kyoto Encyclopedia of Genes and Genomes pathway mRNA-miRNA-lncRNA network progression spinal cord injury

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Ignition models and simulation of solid propellant of thermodynamic undersea vehicle

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Journal of Marine Science and Application 2007年第2期6卷 30-36页

作者： ZHANG jin-jun QIAN Zhi-bo YANG Jie YAN Ping College of Marine Northwestern Polytechnical University Xi＇an 710072 China

The starting characteristics of thermodynamic undersea vehicle systems are determined by the geometry, size and combustion area of solid propellants, which directly effect liquid propellant pipeline design. It is necessary to establish accurate burning models for solid propellants. Based on combustion models using powder rings and two different solid ignition grains, namely star-shaped ignition grains and stuffed ignition grains, a mathematic model of the ignition process of the propulsion system was built. With the help of Matlab, a series of calculations were made to determine the effects of different grains on ignition characteristics. The results show that stuffed ignition grain is best suited to be the ignition grain of a thermodynamic undersea vehicle system.

关键词： thermology undersea vehicle solid ignition grain burning model starting process thermal power system

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Effect of tempering on carbides and hydrogen embrittlement in E690 high strength marine structural steel

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Journal of Iron and Steel Research International 2022年第10期29卷 1669-1682页

作者： Yi Luo Wei Li Peng-wei Zhou Yuan-tao Xu Hui-yong Pang Ning Zhong Hui-sheng Jiao Xue-jun jin Shanghai Key Laboratory of Materials Laser Processing and Modification School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China Institute of Advanced Steels and Materials School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China China Wuyang Iron and Steel Co. Ltd.Pingdingshan462500HenanChina School of Materials Science and Engineering Shanghai Maritime UniversityShanghai200120China TESCAN CHINA Shanghai200240China

The effect of tempering on carbides and hydrogen embrittlement in E690 high strength marine structural steel has been *** steel was tempered at 600℃ for 1–3 *** characterization was carried out to characterize the microstructure,especially the dislocation density and grain *** hydrogen permeation test and thermal desorption spectroscopy test were also *** dislocation density decreases,the amount of carbide increases,and carbides(M_(23)C_(6) and MX)coarsen with the tempering time *** tempered at 600℃ for 3 h,the diffusible hydrogen trapped by lattice and dislocation decreases while the non-diffusible hydrogen trapped by carbides increases,leading to the best hydrogen embrittlement resistance,although hydrogen diffuses rapidly due to the reduction of dislocation *** the fracture mode changes from a combination of brittle cleavage and ductile dimpled fracture to fully ductile dimple fracture under hydrogen charging ***,a phenomenon that hydrogen accelerates the dislocations movement of the steel during deformation was observed,which is related to the fact that hydrogen enhanced localized plasticity mechanism.

关键词： High strength marine structural steel Carbide Tempering Hydrogen embrittlement Thermal desorption spectroscopy

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Hydrogen generation from ammonia electrolysis on bifunctional platinum nanocubes electrocatalysts

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Journal of Energy Chemistry 2020年第8期29卷 234-240,I0009页

作者： Hui-Ying Sun Guang-Rui Xu Fu-Min Li Qi ng-Li ng Hong Pu-jun jin Pei Chen Yu Chen Key Laboratory of Macromolecular Science of Shaanxi Province Key Laboratory of Applied Surface and Colloid Chemistry(Ministry of Education)Shaanxi Key Laboratory for Advanced Energy DevicesSchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an 710062ShaanxiChina School of Chemistry and Chemical Engineering Shaanxi Normal UniversityXi'an 710062ShaanxiChina

The ammonia electrolysis is a highly efficient and energy-saving method for ultra-pure hydrogen generation, which highly relies on electrocatalytic performance of electrocatalysts. In this work, high-quality platinum(Pt) nanocubes(Pt-NCs) with 4.5 nm size are achieved by facile hydrothermal synthesis. The physical morphology and structure of Pt-NCs are exhaustively characterized, revealing that Pt-NCs with special {100} facets have excellent uniformity, good dispersity and high crystallinity. Meanwhile, the electrocatalytic performance of Pt-NCs for ammonia electrolysis are carefully investigated in alkaline solutions, which display outstanding electroactivity and stability for both ammonia electrooxidation reaction(AEOR) and hydrogen evolution reaction(HER) in KOH solution. Furthermore, a symmetric Pt-NCs||Pt-NCs ammonia electrolyzer based on bifunctional Pt-NCs electrocatalyst is constructed, which only requires 0.68 V electrolysis voltage for hydrogen generation. Additionally, the symmetric Pt-NCs||Pt-NCs ammonia electrolyzer has excellent reversible switch capability for AEOR at anode and HER at cathode, showing outstanding alternating operation ability for ammonia electrolysis.

关键词： Ammonia electrolysis Water electrolysis Ammonia oxidation reaction Hydrogen evolution reaction Platinum nanocubes

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Research on the influence of action between fin and anti-rolling tank on the integrated stabilization effect

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Journal of Marine Science and Application 2007年第1期6卷 9-14页

作者： YU Li-jun jin Hong-zhang WANG Hui YANG Sheng College of Automation Harbin Engineering University Harbin 150001 China

Through analyzing the roll model of the integrated system of fin and anti-rolling tank, this paper uses binomial equation to simplify the module and check how the approximate parameters simulate the original function. Based on the simplified module, the influence of fin and anti-rolling tank on the coefficient items of the roll module is discussed, and the influencing factors between fin and anti-rolling tank are analysed. And through simulation, the influence of action between fin and anti-rolling tank on the static characteristics, and the integrated stabilization effect, are analyzed.

关键词： fin stabilizer anti-rolling tank integrated stabilization action each other influence

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Influence of Organic Amendments on Adsorption, Desorption and Leaching of Methiopyrisulfuron in Soils

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Journal of Integrative Agriculture 2013年第9期12卷 1589-1597页

作者： WU Chun-xian NIE Guo ZHANG Zhong-ming WANG Guang-cheng GAO Li-ming WANG jin-jun College of Plant Protection Southwest University Institute of the Control of Agrochemical of Sichuan Province

Methiopyrisulfuron is a novel sulfonylurea herbicide with good activity for annual broadleaf and gramineal weeds control. Present study was to investigate the effects of organic amendments （including peat （PE）, sewage sludge （SS）, and humic acid （HA）） on adsorption, desorption and leaching of methiopyrisulfuron in soils. The batch equilibration technique was applied for adsorption-desorption experiments and the leaching was tested through soil column simulated experiments under laboratory conditions. The Freundlich model may well describe adsorption-desorption of methiopyrisulfuron on organic amendments, the natural soil, and amended soils. Organic amendments could not only greatly increase the adsorption capacity of methiopyrisulfuron, but also significantly enhance the hysteresis of desorption of methiopyrisulfuron. The correlations between Kf_ads and organic matter content of amended soils were significant, and the correlations between H and soil organic matter in amended soils with PE, SS, and HA were significant too. The results of soil column experiments indicated that organic amendments greatly decreased leaching of methiopyrisulfuron. This study suggested that PE, SS, and HA could greatly influence environmental behavior of methiopyrisulfuron in soils. Use of organic amendments might be an effective management practice for controlling potential pollution of methiopyrisulfuron to environment.

关键词： organic amendment adsorption desorption leaching methiopyrisulfuron soil

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Non-climate environmental factors matter to Holocene dynamics of soil organic carbon and nitrogen in an alpine permafrost wetland,Qinghai‒Tibet Plateau

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Advances in Climate Change Research 2023年第2期14卷 213-225页

作者： Qing-Feng WANG Hui-jun jin Cui-Cui MU Xiao-Dong WU Lin ZHAO Qing-Bai WU State Key Laboratory of Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China School of Civil Engineering Northeast China Observatory and Research Station of Permafrost Geo-Environment(Ministry of Education)Institute of ColdRegions Engineering and EnvironmentNortheast Forestry UniversityHarbin 150040China Key Laboratory of Western China's Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesObservation and Research Station on Eco-Environment of Frozen Ground in the Qilian MountainsLanzhou UniversityLanzhou 730000China Cryosphere Research Station on the Qinghai‒Tibet Plateau State Key Laboratory of Cryospheric ScienceNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 101408China School of Geographical Sciences Nanjing University of Information Science&TechnologyNanjing 210044China

Studies on the responses of soil organic carbon(SOC)and nitrogen dynamics to Holocene climate and environment in permafrost peatlands and/or wetlands might serve as analogues for future scenarios,and they can help predict the fate of the frozen SOC and nitrogen under a warming *** date,little is known about these issues on the Qinghai‒Tibet Plateau(QTP).Here,we investigated the accumulations of SOC and nitrogen in a permafrost wetland on the northeastern QTP,and analyzed their links with Holocene climatic and environmental *** order to do so,we studied grain size,soil organic matter,SOC,and nitrogen contents,bulk density,geochemical parameters,and the accelerator mass spectrometry(AMS)^(14)C dating of the 216-cm-deep wetland *** and nitrogen contents revealed a general uptrend over last 7300 *** stocks for depths of 0-100 and 0-200 cm were 50.1 and 79.0 kgC m^(-2),respectively,and nitrogen stocks for the same depths were 4.3 and 6.6 kgN m^(-2),***,a cooling and drying trend for regional climate over last 7300 years was inferred from the declining chemical weathering and humidity ***,SOC and nitrogen accumulated rapidly in 1110e720 BP,while apparent accumulation rates of SOC and nitrogen were much lower during the other periods of the last 7300 ***,we proposed a probable conceptual framework for the concordant development of syngenetic permafrost and SOC and nitrogen accumulations in alpine permafrost *** indicates that,apart from controls of climate,non-climate environmental factors,such as dust deposition and site hydrology,matter to SOC and nitrogen accumulations in permafrost *** emphasized that environmental changes driven by climate change have important impacts on SOC and nitrogen accumulations in alpine permafrost *** study could provide data support for regional and global estimates of SOC and nitrogen pools and for global models on carbon‒climate interactions

关键词： Syngenetic permafrost in alpine wetland Soil organic carbon pool Nitrogen accumulation Chemical weathering Dust deposition Holocene

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