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Correlation between Combined Urinary Metal Exposure and Grip Strength under Three Statistical Models:A Cross-sectional Study in Rural Guangxi

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Biomedical and Environmental Sciences 2024年第1期37卷 3-18页

作者： LIANG Yu Jian RONG Jia Hui wang xue Xiu CAI Jian Sheng qin Li Dong LIU Qiu Mei TANG Xu MO Xiao Ting WEI Yan Fei LIN Yin Xia HUANG Shen Xiang LUO Ting Yu GOU Ruo Yu CAO Jie Jing HUANG Chu Wu LU Yu Fu qin Jian ZHANG Zhi Yong Department of Environmental and Occupational Health School of Public HealthGuangxi Medical UniversityNanning 530021GuangxiChina Key Laboratory of Tumor Immunology and Microenvironmental Regulation Guilin Medical UniversityGuilin 541199GuangxiChina Department of Environmental Health and Occupational Medicine School of Public HealthGuilin Medical UniversityGuilin 541199GuangxiChina Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases Guangxi Medical UniversityNanning 530021GuangxiChina Guangxi Key Laboratory of Environment and Health Research Guangxi Medical UniversityNanning 530021GuangxiChina Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education Guangxi Medical UniversityNanning 530021GuangxiChina Guangxi Health Commission Key Laboratory of Entire Lifecycle Health and Care Guilin Medical UniversityGuilin 541199GuangxiChina

Objective This study aimed to investigate the potential relationship between urinary metals copper(Cu),arsenic(As),strontium(Sr),barium(Ba),iron(Fe),lead(Pb)and manganese(Mn)and grip *** We used linear regression models,quantile g-computation and Bayesian kernel machine regression(BKMR)to assess the relationship between metals and grip *** In the multimetal linear regression,Cu(β=−2.119),As(β=−1.318),Sr(β=−2.480),Ba(β=0.781),Fe(β=1.130)and Mn(β=−0.404)were significantly correlated with grip strength(P<0.05).The results of the quantile g-computation showed that the risk of occurrence of grip strength reduction was−1.007(95%confidence interval:−1.362,−0.652;P<0.001)when each quartile of the mixture of the seven metals was *** kernel function regression model analysis showed that mixtures of the seven metals had a negative overall effect on grip strength,with Cu,As and Sr being negatively associated with grip strength *** the total population,potential interactions were observed between As and Mn and between Cu and Mn(P_(interactions) of 0.003 and 0.018,respectively).Conclusion In summary,this study suggests that combined exposure to metal mixtures is negatively associated with grip ***,Sr and As were negatively correlated with grip strength levels,and there were potential interactions between As and Mn and between Cu and Mn.

关键词： Urinary metals Handgrip strength Quantile g-computation Bayesian kernel machine regression

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Determination of flavonoids in Portulaca oleracea L . by capillary electrophoresis with electrochemical detection

Determination of flavonoids in Portulaca oleracea L . by cap...

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中国化学会第十三届有机分析与生物分析学术会议

作者： XU xue-qin, wang Wei, YU Li-shuang, CHEN Guo-nan (Department of Chemistry, Fuzhou University, Fuzhou 350002)

＜正＞Known as "vegetable for long life" in Chinese folklore , Portulaca oleracea L. is widely used not only as an edible plant, but also as a traditional Chinese herbal medicine for its abilities of clearing heat, removing toxins and cooling the blood to stop bleeding . The fla-vonoids （such as quercetin, kaempferol, apigenin, myr-icetin and luteolin） in Portulaca oleraea L. are the biologically active constituents, which have been reported to

关键词： Portulaca oleraea L. Flavonoids Capillary electrophoresis Electrochemical detection

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Effect of a single oral dose of rabeprazole on nocturnal acid breakthrough and nocturnal alkaline amplitude

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World Journal of Gastroenterology 2003年第11期9卷 2583-2586页

作者： Jin-Yan Luo Chun-Yan Niu xue-qin wang You-Ling Zhu Jun Gong, Department of Gastroenterology, The Second Hospital of Xi’an Jiaotong Uuniversity, Xi’an 710004, Shanxi Province, China Department of Gastroenterology The Second Hospital of Xi'an Jiaotong University Xi'an 710004 Shanxi Province China. ljy18272@***

AIM: To study the effect of rabeprazole (RAB) on nocturnal acid breakthrough (NAB) and nocturnal alkaline amplitude (NAKA) and to compare it with omeprazole (OME) and pantoprazole (PAN).METHODS: By an open comparative study, forty patients with active peptic ulcer were randomly assigned to receive one of the three PPIs (proton pump inhibitor) with a single oral dose. They were divided into RAB group (10 mg), OME group(20 mg) and PAN group (40 mg). Twenty healthy volunteers were enrolled to the control group (without taking any drug). Intragastric pH monitoring was then performed 1 hour before and 24 hours after the dose was ***: No clinically undesirable signs and symptoms possibly attributed to the administration of RAB or OME and PAN were recognizable throughout the study period. All subjects completed the study according to the protocol. All data were processed by a computer using the Student ttest or t' test followed by an analysis of covariance. P<0.05 was considered to have statistical significance. The intragastric pH of NAB was significantly higher in RAB group (1.84±0.55) than in either OME group (1.15±0.31) or PAN group (1.10±0.30) (both P<0.01). RAB produced a longer sustaining time (4.65±1.22 h) on NAKA than OME (3.22±1.89 h) (P<0.05),PAN (3.15±1.92 h) (P<0.05), and the sustaining time of NAKA in RAB group was longer than that in the healthy control group (P<0.01) too. In addition, RAB produced a much higher pH on NAKA (6.41±0.45) in comparison with PAN (6.01±0.92) (P<0.05).CONCLUSION: A single oral dose of 10 mg RAB may increase the pH of NAB and shorten the sustaining time of NAB, and it may increase the pH of NAKA as well as prolong the sustaining time of NAKA.

关键词：雷贝拉唑剂量 NAKA NAB 胃溃疡质子泵抑制剂

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Metallographic investigationof first full-sizehigh-Jc Nb_(3)Sn cable-in-conduit conductor aftercyclicloadingtests

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Superconductivity 2024年第1期9卷 1-8页

作者： Chao Dai Yunhao Liu Zichuan Guo Yu Wu Arend Nijhuis Tianjun xue Zuojiafeng Wu Jinggang qin Huainan New Energy Research Center Huainan 232000People’s Republic of China University of Twente EnergyMaterials and SystemsFaculty of Science and TechnologyEnschede 7500AENetherlands University of Science and Technology of China Hefei 230026People’s Republic of China Baiyin Non-ferrous Changtong Wire&Cable Co.Ltd BaiyinGansu 730900People’s Republic of China Longteng Mechanical and Electrical Co. LtdYiChun 336000People’s Republic of China

In order to verify the feasibility of applying high-Jc Nb_(3)Sn strand in fusion magnet,a full-size cable-in-conduit conductor(CICC)with short twist pitch(STP)cable pattern was manufactured and tested in SULTAN facility at SPC,*** levels of cyclic electromagnetic(EM)load were applied on the sample stepwise,no visible decrease of current sharing temperature(TcsT was observed until the EM load increased to 80 kA×10.8 T,after that the Tcs decreased dramatically with the EM cycles,which suggested that irreversible deformation,causing a change in the strain state,or even damage has occurred in the superconducting *** investigating the reason which caused the conductor performance degradation,the tested conductor was dissected for metallographic *** segments which subjected to different EM loads were extracted from one of the legs,the geometric feature changes of the cable cross-sections were analyzed and compared.A good correlation was found between the decrease of the Tcs and deformation of the cable cross section.A mass of cracks were found on the sub-elements of strands in the segment which subjected to highest EM load,but the amount of crack is much lower in other *** the analyses,it is speculated that the critical EM load which causes irreversible degradation is between 850 kN/m and 870 kN/m for this *** results could be a reference in high-Jc Nb_(3)Sn CICC design.

关键词： High‐Jc Nb_(3)Sn Cable‐in‐conduit conductor Metallography

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Development of Superhydrophobic Nano-SiO_(2)and Its Field Application in Low-permeability,High-temperature,and High-salinity Oil Reservoirs

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China Petroleum Processing & Petrochemical Technology 2024年第3期26卷 1-14页

作者： qin Bing Gao Min Lei xue Zhao Lin Zhu Qizhi Meng Fanbin Jiang Jianlin SINOPEC Research Institute of Petroleum Processing Co. LtdBeijing 100083China

In this study,to meet the stringent requirements on the hydrophobicity of nano-SiO_(2)particles for use in depressurization and enhanced injection operations in high-temperature and high-salinity oil reservoirs,secondary chemical grafting modification of nano-SiO_(2)is performed using a silane coupling agent to prepare superhydrophobic nano-SiO2 *** these superhydrophobic nano-SiO_(2)particles as the core agent,and liquid paraffin or diesel as the dispersion medium,a uniform dispersion of nano-SiO_(2)particles is achieved under high-speed stirring,and a chemically enhanced water injection system with colloidal stability that can be maintained for more than 60 d is successfully *** this system,a field test of depressurization and enhanced injection is carried out on six wells in an oilfield,and the daily oil production level is increased by 11 *** cumulative increased water injection is 58784 m^(3),the effective rate of the measures was 100%,and the average validity period is 661 d.

关键词： nano-SiO_(2)particle hydrophobic modification enhanced injection operation low-grade reservoir low permeability oilfield

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Assessment of duodenogastric reflux by combined continuous intragastric pH and bilirubin monitoring

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World Journal of Gastroenterology 2002年第2期8卷 382-384页

作者： Fei Dai Jun Gong Ru Zhang Jin-Yan Luo You-Ling Zhu xue-qin wang,Department of Gastroenterology,Second Hospital of Xi’ an Jiaotong University,Xi’an 710004,Shaanxi Province,China Department of Gastroenterology Second Hospital of Xi'an Jiaotong University 157 Xiwu LU Xi'an 710004 Shaanxi Province China. jiangdf@***

AIM: To assess the diagnostic value of a combination of continuous intragastric pH and bilirubin monitoring in the detection of duodenogastric reflux (DGR), and the effects of diet on the bilirubin absorbance. METHODS: 30 healthy volunteers were divided into two groups: standard diet group (Group 1) 18 cases, free diet group (Group 2)12 cases. Each subjects were subjected to simultaneous 24-hour intragastric pH and spectrophotometric bilirubin concentration monitoring (Bilitec 2000). RESULTS: There was no difference of preprandial phase bilirubin absorbance between two groups. The absorbance of postprandial phase was significantly increased in group 2 than group 1. There was no difference between preprandial phase and postprandial phase absorbance in group 1. Postprandial phase absorbance was significantly higher in group 2. In a comparison of bile reflux with intragastric pH during night time, there were 4 types of reflux: Simultaneous increase in absorbance and pH in only 19.6%, increase in bilirubin with unchanged pH 33.3%, pH increase with unchanged absorbance 36.3%, and both unchanged in 10.8%. Linear regression analysis showed no correlation between percentage total time of pH0.14, r=0.068 P<0.05. CONCLUSION: Because of the dietary effect, high absorbance fluids or foods should be avoided in detection. Intragastric pH and bilirubin monitoring separately predict the presence of duodenal (and/or pancreatic) reflux and bile reflux. They can not substitute for each other. The detection of DGR is improved if the two parameters are combined simultaneously.

关键词： Adult Aged Bilirubin Diet Duodenogastric Reflux Female Fiber Optics Humans Hydrogen-Ion Concentration Male Middle Aged Postprandial Period Random Allocation Research Support, Non-U.S. Gov't

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人工智能时代基层治理的应用场景及其实践

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江苏行政学院学报 2024年第3期 65-70页

作者：闵学勤汪龙鑫南京大学社会学院南京210023

人工智能时代的来临既加剧了基层治理的创新难度,同时也增加了打通基层治理堵点的可能性。在国家智能社会治理实验基地的探索中,通过社区智能物联、养老、就医、文旅、参与和生活等场景的初步实践,尝试应对智能社会治理中的主体性问题... 详细信息

人工智能时代的来临既加剧了基层治理的创新难度,同时也增加了打通基层治理堵点的可能性。在国家智能社会治理实验基地的探索中,通过社区智能物联、养老、就医、文旅、参与和生活等场景的初步实践,尝试应对智能社会治理中的主体性问题、信任问题和多边决策问题。但面对人工智能技术不断迭代的席卷浪潮,基层治理的智能化之路仍然面临诸多挑战。以持续为百姓谋福利、不断提升百姓幸福感为目标的基层治理,如何迎难而上、积极寻找人机共舞的有效对策是推进基层治理现代化的关键要素。

关键词：人工智能基层治理应用场景

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一种改进的邻域保持嵌入算法

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计算机科学 2018年第B6期45卷 255-258,278页

作者：娄雪闫德勤王博林王族辽宁师范大学数学学院辽宁大连116029

邻域保持嵌入(NPE)是一种新颖的子空间学习算法,在降维的同时保持了样本集原有的局部邻域流形结构。为了进一步增强NPE在人脸识别和语音识别中的识别功能,提出了一种改进的邻域保持嵌入算法(RNPE)。在NPE的基础上通过引入类间权值矩阵,... 详细信息

邻域保持嵌入(NPE)是一种新颖的子空间学习算法,在降维的同时保持了样本集原有的局部邻域流形结构。为了进一步增强NPE在人脸识别和语音识别中的识别功能,提出了一种改进的邻域保持嵌入算法(RNPE)。在NPE的基础上通过引入类间权值矩阵,使得类间离散度最大,类内离散度最小,增加了样本类间散布约束。最后利用极端学习机(ELM)分类器进行分类,在Yale人脸库、Umist人脸库、Isolet语音库上的实验结果表明,RNPE算法的识别率明显高于NPE算法、LMMDE算法以及RAF-GE算法。

关键词：邻域保持邻域嵌入人脸识别

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对马克思主义思想政治教育环境的理论思考

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河南工业大学学报（社会科学版） 2016年第4期12卷 104-107页

作者：秦雪王哲东北师范大学马克思主义学部吉林长春130024

马克思关于环境的经典论述为科学认识思想政治教育环境提供了重要的思想资源。思想政治教育环境作为一种客观的社会历史性和现实性存在,其属人性和革命性的实践本质从根本上规定了自身基本特征的表现样态和承载的功能特质。对思想政治... 详细信息

马克思关于环境的经典论述为科学认识思想政治教育环境提供了重要的思想资源。思想政治教育环境作为一种客观的社会历史性和现实性存在,其属人性和革命性的实践本质从根本上规定了自身基本特征的表现样态和承载的功能特质。对思想政治教育环境基本内涵、基本特征和育人功能的理解,一方面应立足于马克思关于"现实的个人"和"矛盾分析法"的思想内涵,另一方面要着眼于社会现实的变化,在"变革的实践"进程中实现对思想政治教育环境的优化,最终实现人与环境的和谐。

关键词：思想政治教育环境现实的个人矛盾分析法变革的实践

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Enhanced photothermal dehydration of methanol over W_(18)O_(49)/Au/SAPO-34 catalysts with broadened light absorption

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Rare Metals 2024年第3期43卷 1139-1152页

作者： Ya-qin Tang Meng-Xia Yan Chang-Qian Lu Shao-Yuan Li Kui-Xian Wei Tao Qu Wen-HuiMa Yong-Nian Dai Kong-Zhai Li Da-Jun Luo xue-Liang Zhang Yi-Ke Liu Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming650093China School of Materials and Energy Engineering Guizhou Institute of TechnologyGuiyang550003China

Methanol-to-olefins(MTO)process is one of the most critical pathways to produce low carbon ***,the reaction is driven by thermal catalysis,which inevitably needs to consume large amounts of fossil *** a new technique to substitute for the fuel burning is urgent for MTO process to improve the industry prospects and ***,we report a novel W_(18)O_(49)/Au/SAPO-34(W/Au/S),a multifunctional photothermal catalyst for the MTO reaction.A high methanol conversion was achieved under xenonum(Xe)lamp irradiation,yielding methyl ether(ME)and ethylene as the main *** optimized W/Au/S catalysts showed ethylene yield as high as 250μmol in 60 min,which was 2.5 times higher than that of Au/*** physiochemical characterization revealed that the SAPO-34 molecular sieves were surrounded by Au and W_(18)O_(49)nanoparticles,which exhibited a strong localized surface plasmon resonance excitation around 540 nm and light absorption beyond 500 *** multifunctional catalysts showed a strong photothermal effect,arising from the broadened light absorption of Au and W_(18)O_(49)nanoparticles,leading to a temperature as high as 250℃on the surface of the *** study showed that the superior ethylene selectivity of W/Au/S catalysts was attributed to the moderating acidic sites of W_(18)O_(49)for methanol dehydration to *** research may provide new insight for designing heterostructures to improve photo-to-chemical conversion performance and is expected to accelerate progress toward the excellent multifunctional photothermal catalysts with broad light absorption for methanol activation and C-C bond formation.

关键词： Methanol conversion Ethylene Photothermal catalysis W_(18)O_(49) BrΦnsted-acid

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