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Chinese Journal of Structural Chemistry 2006年第6期25卷 747-751页

作者： WANG Jian-Ge DU qiao-yun li Peng-yun Department of Chemistry Luoyang Normal University Luoyang 471022 China

A novel ternary complex of [NiL1L2·2H2O]·NO3·H2O （L1 = 2-hydroxyl-1,10-phenanthroline （HOphen）, L2 = 2-hydroxynicotinic acid （H2nicO）） was synthesized, and its crystal structure was determined by X-ray diffraction and further characterized by infrared and elementary analysis. The title complex （C18H18NiN4O10, Mr = 509.07） belongs to the triclinic system, space group P1^- with a = 712490（7）, b = 11.0164（10）, c = 13.3864（13）A, α = 91.6040（10）,β= 98.8620（10）, γ= 107.1140（10）°, V= 1006.43（17）A^3, Z = 2, Dc = 1.680 g/cm^3,μ= 1.032 mm^-1, F（000） = 524, the final R = 0.0461 and wR= 0.1238. In the complex, the Ni（H） ion is six-coordinated to assume a distorted octahedral geometry, and a 3D supramolecular network comes into being via weak intermolecular interactions of X-O--.H （X = N, O）.

关键词： 2-hydroxyl-1,10-phenanthroline 2-hydroxynicotinic acid nickel complex crystal structure

数字贸易规则开放水平特征及其影响因素的实证分析

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武汉理工大学学报（社会科学版） 2024年第4期37卷 57-71页

作者：黄蕙萍杜仲雯乔云莉武汉理工大学经济学院武汉430070 湖北省科技创新与发展研究中心武汉430070

随着全球数字贸易增长迅速,数字贸易规则成为全球治理中心议题之一。然而,各国主导构建的数字贸易规则存在显著差异和碎片化趋势。本文基于TAPED数据库测算各国数字贸易规则开放水平,采用fsQCA方法分析构成数字贸易规则影响因素的组态... 详细信息

随着全球数字贸易增长迅速,数字贸易规则成为全球治理中心议题之一。然而,各国主导构建的数字贸易规则存在显著差异和碎片化趋势。本文基于TAPED数据库测算各国数字贸易规则开放水平,采用fsQCA方法分析构成数字贸易规则影响因素的组态。研究发现,数字主权维护能力是一国进行数字贸易规则谈判的前提,数据要素数量与质量是达成高水平数字贸易规则开放的必要条件,数字产业竞争力为一国开展数字贸易规则领域开放的基础。中国虽在数据要素数量与质量、数字产业具有较强竞争力,但数字主权维护能力待提升,故应选择审慎的数字贸易规则开放态度;未来应从数据要素培育、数字技术发展、数字主权保障体系入手,强化中国在数字经贸领域的话语权。

关键词：数字贸易规则开放水平影响因素数据要素模糊集定性

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Pentraxin 3 （PTX3） promoter methylation associated with PTX3 plasma levels and neutrophil to lymphocyte ratio in coronary artery disease

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Journal of Geriatric Cardiology 2016年第8期13卷 712-717页

作者： Tang-Meng GUO li-li HUANG Kai liU li KE Zhi-Jian LUO yun-qiao li Xing-lin CHEN Bei CHENG Department of Geriatrics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan Hubei China Institute of Geriatrics Union Hospital Tongii Medical College Huazhong University of Science and Technology Wuhan Hubei China Department of Clinical Laboratory Medicine People's Hospital of Dongxihu District Wuhan Hubei China Department of Cardiology Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou Henan China Department of Neurology the First Hospital of Jingzhou Clinical Medical College Yangtze University Jingzhou Hubei China

Background Pentraxin 3 （PTX3） is expressed in the heart under inflammatory conditions and plays an important role in atherogenesis. Patients with increased PTX3 levels may suffer from higher rates of cardiac events. Regulation of specific genes by promoter methylation is important in atherogenesis. The factors influencing PTX3 levels and the association between epigenetics and PTX3 levels have not been investigated. Methods Blood samples were collected from 64 patients admitted to the Department of Cardiology, 35 who had coronary artery disease （CAD）, and 29 who were CAD-free. Plasma levels of PTX3 were measured by EliSA. PTX3 promoter methylation was evaluated via methyl-specific PCR. The severity of coronary artery lesion was evaluated by angiography. Results The level of PTX3 promoter methylation in the CAD group was 62.69% ± 20.57%, significantly lower than that of the CAD-free group, which was 72.45% ± 11.84% （P = 0.03）. Lower PTX3 promoter methylation levels in the CAD group were associated with higher plasma PTX3 concentrations （r = -0.29, P = 0.02）. Furthermore, lower PTX3 promoter methylation levels were associated with higher neutrophil to lymphocyte ratio （NLR） in men （r = -0.58, P = 0.002）. Conclusions The present study provides new evidence that methylation of the PTX3 promoter is associated with PTX3 plasma levels and NLR in coronary artery disease. This study also shows that modification of epigenetics by chronic inflamma- tion might be a significant molecular mechanism in the atherosclerotic processes that influence plasma PTX3 concentrations.

关键词： Coronary artery disease Lymphocyte Methylation Neutrophil Pentraxin 3

Hepatic angiomyolipoma: Dynamic computed tomography features and clinical correlation

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World Journal of Gastroenterology 2009年第27期15卷 3417-3420页

作者： Bin Yang Wen-Hui Chen qiao-yun li Jing-Jing Xiang Ru-Jun Xu Department of Radiology Hangzhou First People's Hospital Hangzhou 310006 Zhejiang Province China Department of Pathology Hangzhou First People's Hospital Hangzhou 310006 Zhejiang Province China

AIM: To study the dynamic computed tomography (CT) features of hepatic angiomyolipoma (AML) in patients with or without tuberous sclerosis complex (TSC).METHODS: The clinical information, CT fi ndings and histopathological results of hepatic AML were analyzed retrospectively in 10 ***: Hepatic AML was prone to occur in female patients (7/10), and most of the patients (8/10) had no specific symptoms. All tumors presented as well-def ined, unenveloped nodules in the liver. Six patients with sporadic hepatic AML had a solitary hepatic nodule with a definite fat component. Non-fat components of the hepatic lesions were enhanced earlier and persistently. Prominent central vessels were noted in the portal venous phase in three patients. In four patients with hepatic AML and TSC, most of the nodules were within the peripheral liver. Seven fat-deficient nodules were found with earlier contrast enhancement and rapid contrast material washout in two patients. Lymphangioleiomyomatosis was found in one ***: Imaging features of hepatic AML are characteristic. Correct diagnosis preoperatively can be made in combination with clinical features.

关键词： Lymphangioleiomyomatosis X-ray Computed tomography Angiomyolipoma Tuberous sclerosis complex

A 30-year overview of sodium-ion batteries

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Carbon Energy 2024年第6期6卷 56-98页

作者： yun Gao Hang Zhang Jian Peng lin li Yao Xiao li li Yang liu yun qiao Shu-Lei Chou School of Environmental and Chemical Engineering Shanghai UniversityShanghaiChina College of Chemistry and Materials Engineering Wenzhou UniversityWenzhouZhejiangChina Institute for Superconducting and Electronic Materials University of WollongongWollongongNew South WalesAustralia

Sodium-ion batteries(NIBs)have emerged as a promising alternative to commercial lithium-ion batteries(liBs)due to the similar properties of the li and Na elements as well as the abundance and accessibility of Na *** of the current research has been focused on the half-cell system(using Na metal as the counter electrode)to evaluate the performance of the cathode/anode/*** relationship between the performance achieved in half cells and that obtained in full cells,however,has been neglected in much of this ***,the trade-off in the relationship between electrochemical performance and cost needs to be given more ***,systematic and comprehensive insights into the research status and key issues for the full-cell system need to be gained to advance its ***,this review evaluates the recent progress based on various cathodes and highlights the most significant challenges for full *** strategies have also been proposed to enhance the electrochemical performance of NIBs,including designing electrode materials,optimizing electrolytes,sodium compensation,and so ***,perspectives and outlooks are provided to guide future research on sodium-ion full cells.

关键词： commercial application electrode electrolyte sodium-ion full cell strategies

Transgenic barley with overexpressed PTrx increases aluminum resistance in roots during germination

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第11期11卷 862-870页

作者： qiao-yun li Hong-bin NIU Jun YIN Hong-bo SHAO Ji-shan NIU Jiang-ping REN Yong-chun li Xiang WANG National Engineering Research Center for Wheat Henan Agricultural University Zhengzhou 450002 China Yantai Institute of Coastal Zone Research Chinese Academy of Sciences Yantai 264003 China Institute of life Sciences Qingdao University of Science and Technology (QUST) Qingdao 266042 China

A transgenic barley line(LSY-11-1-1) with overexpressed Phalaris coerulescens thioredoxin gene(PTrx) was employed to measure the growth,protein oxidation,cell viability,and antioxidase activity in barley roots during germination on the presence of 2 mmol/L AlCl3 on filter *** results show that(1) compared with the non-transgenic barley,LSY-11-1-1 had enhanced root growth,although both were seriously inhibited after AlCl3 treatment;(2) the degree of protein oxidation and loss of cell viability in roots of LSY-11-1-1 were much less than those in roots of non-transgenic barley,as reflected by lower contents of protein carbonyl and Evans blue uptakes in LSY-11-1-1;(3) activities of catalase(CAT) ,glutathione peroxidase(GPX) ,ascorbate peroxidase(APX) ,and glu-tathione reductase(GR) in LSY-11-1-1 root tips were generally higher than those in non-transgenic barley root tips,although these antioxidase activities gave a rise to different degrees in both LSY-11-1-1 and non-transgenic barley under aluminum *** results indicate that overexpressing PTrx could efficiently protect barley roots from oxidative injury by increasing antioxidase activity,thereby quenching ROS caused by AlCl3 during *** properties raise the possibility that transgenic barley with overexpressed PTrx may be used to reduce the aluminum toxicity in acid soils.

关键词： Phalaris coerulescens thioredoxin gene (PTrx) Aluminum Transgenic barley Oxidative stress

Monte Carlo method for evaluation of surface emission rate measurement uncertainty

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Nuclear Science and Techniques 2024年第7期35卷 126-136页

作者： Yuan-qiao li Min lin li-Jun Xu Rui Luo Yu-He Zhang Qian-Xi Ni yun-Tao liu China Institute of Atomic Energy Beijing102413China National Key Laboratory for Metrology and Calibration Techniques Beijing102413China Department of Radiation Oncology Hunan Cancer HospitalChangsha410031China The Affiliated Cancer Hospital of Xiangya School of Medicine Central South UniversityChangsha410031China

The aim of this study is to evaluate the uncertainty of 2πα and 2πβ surface emission rates using the windowless multiwire proportional counter *** study used the Monte Carlo method (MCM) to validate the conventional Guide to the Expression of Uncertainty in Measurement (GUM) method.A dead time measurement model for the two-source method was established based on the characteristics of a single-channel measurement system,and the voltage threshold correction factor measurement function was indirectly obtained by fitting the threshold correction *** uncertainty in the surface emission rate was calculated using the GUM method and the law of propagation of *** MCM provided clear definitions for each input quantity and its uncertainty distribution,and the simulation training was realized with a complete and complex mathematical *** results of the surface emission rate uncertainty evaluation for four radioactive plane sources using both methods showed the uncertainty’s consistency E_(n)lidation tool for GUM results.

关键词： Surface emission rate Monte Carlo method Metrology Probability distribution function Dead time Low-energy loss correction Least-squares method

Data-Driven Direct Adaptive Risk-Sensitive Control of Stochastic Systems

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Journal of Systems Science & Complexity 2024年第4期37卷 1446-1469页

作者： qiao Nan li Tao School of Mathematical Sciences East China Normal UniversityShanghai 200241China Shanghai Key Laboratory of Pure Mathematics and Mathematical Practice School of Mathematical SciencesEast China Normal UniversityShanghai 200241China

The authors propose a data-driven direct adaptive control law based on the adaptive dynamic programming(ADP) algorithm for continuous-time stochastic linear systems with partially unknown system dynamics and infinite horizon quadratic risk-sensitive *** authors use online data of the system to iteratively solve the generalized algebraic Riccati equation(GARE) and to learn the optimal control law *** the case with measurable system noises,the authors show that the adaptive control law approximates the optimal control law as time goes *** the case with unmeasurable system noises,the authors use the least-square solution calculated only from the measurable data instead of the real solution of the regression equation to iteratively solve the *** authors also study the influences of the intensity of the system noises,the intensity of the exploration noises,the initial iterative matrix,and the sampling period on the convergence of the ADP ***,the authors present two numerical simulation examples to demonstrate the effectiveness of the proposed algorithms.

关键词： Adaptive dynamic programming direct adaptive control generalized algebraic Riccati equation risk-sensitive control

Synthesis and characterization of iron clusters with an icosahedral [Fe@Fe12]16+ Core

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National Science Review 2024年第4期11卷 123-129页

作者： Gan Xu yun-Shu Cui Xue-lian Jiang Cong-qiao Xu Jun li Xu-Dong Chen Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of New Power Batteries School of Chemistry and Materials Science Nanjing Normal University Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry Southern University of Science and Technology Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education Tsinghua University State Key Laboratory of Coordination Chemistry Nanjing University

Iron-metal clusters are crucial in a variety of critical biological and material systems,including metalloenzymes,catalysts,and magnetic storage ***,a synthetic high-nuclear iron cluster has been absent due to the extreme difficulty in stabilizing species with direct iron-iron *** this work,we have synthesized,crystallized,and characterized a（Tp*）4W4S12(Fe@Fe12) cluster(Tp*=tris（3,5-dimethyl-1-pyrazolyl）borate（1-）),which features a rare trideca-nuclear,icosahedral[Fe@Fe12] cluster core with direct multicenter iron-iron bonding between the interstitial iron（Fei） and peripheral irons（Fep）,as well as Fep…Fepferromagnetic *** chemistry studies reveal that the stability of the cluster arises from the 18-electron shell-closing of the [Fe@Fe12]16+core,assisted by its bonding interactions with the peripheral tridentate [（Tp*）WS3]4-ligands which possess both S→Fe donation and spin-polarized Fe-Wσ *** ground-state electron spin is theoretically predicted to be S=32/2 for the *** existence of low oxidation-state（OS～+1.23） iron in this compound may find interesting applications in magnetic storage,spintronics,redox chemistry,and cluster catalysis.

关键词： Fe13 cluster iron-sulfur cluster low-valence iron iron−iron bond high spin complex

Digital measuring the ocular morphological parameters of guinea pig eye in vivo with Python

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International Journal of Ophthalmology(English edition) 2024年第2期17卷 239-246页

作者： Yue Di Zhong-Bao qiao Hai-yun Ye Xin-Yue li Wen-Ting Luo Wang-Yi Fang Tong qiao Department of Ophthalmology Shanghai Children’s HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200062China

AIM:To quantitatively measure ocular morphological parameters of guinea pig with Python ***:Thirty-six eyeballs of eighteen 3-weekold guinea pigs were measured with keratometer and photographed to obtain the horizontal,coronal,and sagittal planes *** corresponding photo pixels-actual length ratio was acquired by a proportional *** edge coordinates were identified artificially by ginput *** and conic curve fitting were applied to fit the contour of the eyeball in the sagittal,coronal and horizontal *** curvature,curvature radius,eccentricity,tilt angle,corneal diameter,and binocular separation angle were calculated according to the geometric ***,the eyeballs were removed,canny edge detection was applied to identify the contour of eyeball in *** results were compared between in vivo and in ***:Regarding the corneal curvature and curvature radius on the horizontal and sagittal planes,no significant differences were observed among results in vivo,in vitro,and the *** horizontal and vertical binocular separation angles were 130.6°±6.39°and 129.8°±9.58°*** the corneal curvature radius and eccentricity in vivo,significant differences were observed between horizontal and vertical ***:The Graphical interface window of Python makes up the deficiency of edge detection,which requires too much definition in *** are significant differences between guinea pig and human beings,such as exotropic eye position,oblique oval eyeball,and obvious discrepancy of *** study helps evaluate objectively the ocular morphological parameters of small experimental animals in emmetropization research.

关键词： ocular morphological parameters guinea pig digital measurement Python