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皮肤结核病血清抗PPD抗体检测及其临床意义

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泰山医学院学报 1995年第2期16卷 102-105页

作者：米庆胜顾军李洪亮杜兆英孟军上海长海医院皮肤科

应用酶联免疫吸附试验（ＥＬＩＳＡ）方法检测了３６例皮肤结核病患者血清中抗ＰＰＤ一ＩｇＧ、ＩｇＭ抗体，并以１５例活动性肺结核及４０例健康献血者做对照，结果显示皮肤结核病组抗ＰＰＤ抗体阳性率为４４．４％，活动性肺结核为７... 详细信息

应用酶联免疫吸附试验（ＥＬＩＳＡ）方法检测了３６例皮肤结核病患者血清中抗ＰＰＤ一ＩｇＧ、ＩｇＭ抗体，并以１５例活动性肺结核及４０例健康献血者做对照，结果显示皮肤结核病组抗ＰＰＤ抗体阳性率为４４．４％，活动性肺结核为７３．３％，与健康组（２．５％）相差十分显著（Ｐ＜０．０１），而皮肤结核病组与肺结核组相差不显著，提示此方法可做为皮肤结核病诊断的辅助方法。

关键词： EliSA 皮肤结核病抗PPD抗体

Growth rate,catalase and superoxide dismutase activities in rock carp(Procypris rabaudi Tchang) exposed to supersaturated total dissolved gas

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第11期12卷 909-914页

作者： Xiao-qing liU Ke-feng li jun du Jia li Ran li State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University Chengdu 610065 China Fisheries Institute Sichuan Academy of Agricultural Sciences Chengdu 611731 China

Total dissolved gas supersaturation(TDGS) appears when the pressures of gases in a solution exceed the barometric *** is often caused by flood discharge at *** may lead to gas bubble disease(GBD) for fish and biochemical responses of selected fish and other aquatic *** purpose of this study was to determine the impact of long-term TDGS levels on the growth and biochemical responses of rock carp(Procypris rabaudi Tchang) dwelling in the upper reaches of the Yangtze ***-year-old rock carp were exposed to TDGS levels at 100%,104%,108%,112%,and 116% for 42 *** were taken every 7 d after the start of the trial in order to determine catalase(CAT) and superoxide dismutase(SOD) activities in gill and muscle *** were taken at Days 0 and 42 of exposure to determine growth *** effect was found on growth rate in all treatment *** and CAT activities varied in different tissues,according to time of exposure and TDGS *** biochemical response of fish exposed to TDGS was more obvious in gill tissue than in muscle *** of SOD and CAT activities in different tissues offer important information about the effect of TDGS on the rare fish in the Yangtze River,and may help evaluate the risk to the aquatic eco-environment and aquatic ecosystem in the downstream of the Yangtze River.

关键词： Total dissolved gas supersaturation (TDGS) Rock carp (Procypris rabaudi Tchang) Growth rate Catalase Superoxide dismutase

Synthesis of chiral phosphine derivatives through a copper（I）-catalyzed desymmetric SNAr reaction

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Science China Chemistry 2025年

作者： Shuai Zhang Pei-Zhi liu Yan-Bo li Qi Zhang jun-Zhao Xiao Yi-Fan Wang Tian-Yu Wei Jia-Wei Jiang Ye Wang Qian Peng liang Yin Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences Chinese Academy of Sciences State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry Frontiers Science Center for New Organic Matter Nankai University Haihe Laboratory of Sustainable Chemical Transformations

Axially chiral phosphines are a class of extremely important ligands in asymmetric catalysis. Herein, an unprecedented copper（I）-catalyzed asymmetric SNAr reaction with HP（S）R2is uncovered, which delivers a series of axially chiral phosphine derivatives in high yields with excellent enantioselectivity. Furthermore, the diastereoselective reaction with the kinetic resolution of racemic HP（S）ArR proceeds smoothly, providing the products with moderate diastereoselectivity and excellent enantioselectivity. Control experiments indicate that HP（S）Ph2is much more active than HPPh2and HP（O）Ph2as the pronucleophile in the present reaction. It is found that the SNAr reaction （the first SNAr） proceeds in a desymmetric manner, providing the desired chiral products while a continued SNAr reaction （the second SNAr） slightly occurs in a kinetic resolution manner in the present catalytic system, which enhances the ee of the desired chiral products. DFTcalculations support a concerted reaction pathway rather than a step-wise mechanism. Finally, axially chiral olefin-phosphines produced by the present method work as suitable ligands in Pdcatalyzed asymmetric allylic substitution with C-, N-, and O-nucleophiles and Rh-catalyzed asymmetric addition of arylboronic acid to benzil.

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A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions

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Science China Chemistry 2025年

作者： Shiyong Zhang Mingyuan Zhang Tianhua Zhang Jizhen Sun Jiaxin li Kailin Su Ruishao Mao Yanliang Zhou Xuanbei Peng Yangyu Zhang jun Ni Bingyu lin Xiuyun Wang lilong Jiang National Engineering Research Center of Chemical Fertilizer Catalyst Fuzhou University Qingyuan Innovation Laboratory

Achieving green ammonia （NH3） synthesis requires developing effective catalysts under mild ***,the competitive adsorption of N2and H2,as well as the strong binding of N-containing intermediates on the catalyst,greatly inhibits the active sites for efficient ***,we constructed a series of ZrH2-modified Fe catalysts with dual active sites to address these issues and realized efficient NH3synthesis under mild *** study shows that ZrH2can not only provide active sites for H2activation but also transfer electrons to Fe sites for accelerating *** interaction between Fe and ZrH2over 40ZrH2-Fe leads to a decrease in work function and a downward shift of the d-band center,which is conducive to N2activation and NH3desorption,*** utilization of distinct sites for activating different reactants can avoid the competitive adsorption of N2and H2,leading to excellent NH3synthesis activity of the 40 wt.%ZrH2-mediated Fe *** a result,40ZrH2-Fe exhibits a high NH3synthesis rate of 23.3 mmol g-1cath-1at 400°C and 1 MPa and robust stability during100 h time-on-stream.

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Preparation of nano-sized tungsten carbide via fluidized bed

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Chinese Journal of Chemical Engineering 2020年第3期28卷 923-932页

作者： Feng Pan Zhan du Shaofu li jun li Meiju Zhang Maoqiao Xiang Qingshan Zhu State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of Sciences(CAS)Beijing 100190China Information Research Institute of Emergency Management Department Beijing 100084China University of Chinese Academy of Sciences Beijing 100049.China

Ultrafine or nano-sized of tungsten carbide(WC)is the key material to prepare ultrafine grained cemented *** this paper,nano-sized WC powders were directly prepared by using industrial nano-needle violet tungsten oxide(WO2.72)as the raw material,a fluidized bed as the reactor,and CO as the carbonization *** relationship between particle sizes and reaction temperatures,residence times,atmospheres has been investigated *** addition,the physical–chemical indexes(such as residual oxygen,total carbon and free carbon)of the products were *** results indicated that the particle size of WC increased with the increase of temperature from 800 to 950°*** the residence time increased,the particle size decreased gradually,and then increased due to slight *** introduction of hydrogen reduced the carbonization rate,and is not beneficial to obtaining nano-sized *** that satisfy the standard were obtained when WO2.72 reacted with CO at 850°C,900°C and 950°C for 3.0 h,2.5 h and 2.0 h,*** particle sizes of the three samples calculated from the specific surface area were 46.4 nm,53.2 nm and 52.1 nm,respectively.

关键词： Nanoparticles Violet tungsten oxide Nano tungsten carbide Fluidized-bed Reduction-carbonization Process control

Study on the thermal decomposition kinetics of cis/trans-[Cu(gly)_(2)]·H_(2)O

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Science China Chemistry 2005年第Z1期48卷 70-73页

作者： ZHANG Fengxing li jun li Hengxin du Guixiang SONG Shuqing Chemistry Department Northwest University/Shaanxi Province Key Laboratory of Physicoinorganic ChemistryXi'an 710069China

The thermal decomposition reactions of the complexes cis/trans-[Cu(gly)_(2)]·H_(2)Owere studied by TG-DSC *** results showed that they have similar decomposition process,which occur in two *** first step is the loss of water and the second step is the decomposition of anhydrous *** for cis-[Cu(gly)_(2)]·H_(2)O,the tempoerature of losing water is higher than that of *** reaction mechanisms of the two-step decomposition were also proposed.

关键词： copper(Ⅱ)complex thermal analysis thermal decomposition kinetics cis/trans isomers glycin

Changes of ghrelin following oral glucose tolerance test in obese children with insulin resistance

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World Journal of Gastroenterology 2008年第12期14卷 1919-1924页

作者： Xiu-Min Wang You-jun Jiang li liang li-Zhong du Department of endocrinology The Children's Hospital of ZhejiangUniversity School of Medicine 57 Zhugan Xiang Hangzhou310003 Zhejiang Province China

AIM： To characterize changes in ghrelin levels in response to oral glucose tolerance test （OGTT） and to correlate changes in ghrelin levels with changes in insulin and glucose following OGTT in Chinese obese children of Tanner Ⅰ and Ⅱ stage with insulin resistance. METHODS： 22 obese children with insulin resistance state were divided into four groups according to their Tanner stage and gender： boys of Tanner Ⅰ （fir- Ⅰ ）, boys of Tanner Ⅱ（BT-Ⅱ ）, girls of Tanner Ⅰ （GT- Ⅰ ）, girls of Tanner Ⅱ （GT-Ⅱ）. Ghrelin, insulin and glucose were measured at 0, 30, 60 and 120 rain following OGTT. The control children with normal BMI were divided into control boys of Tanner Ⅰ （CBT- Ⅰ, n = 6）, control boys of Tanner Ⅱ （CBT-Ⅱ, n = 5）, control girls of Tanner Ⅰ （CGT- Ⅰ, n = 6）, control girls of Tanner Ⅱ （CGT-Ⅱ, n = 5）. Fasting serum ghrelin levels were analyzed. RESULTS： Ghrelin levels were lower in obese groups. Ghrelin levels of control group decreased in Tanner Ⅱ stage （CGT- Ⅰ vs CGT-Ⅱ t = -4.703, P = 0.001; CBT- Ⅰ vs CBT- Ⅱ t = -4.794, P = 0.001）. Basal ghrelin levels in fir-Ⅱ decreased more significantly than that in BT- Ⅰ group （t = 2.547, P = 0.029）. Ghrelin levels expressed a downward trend after OGTT among obese children. The decrease in ghrelin levels at 60 min with respect to basal values was 56.9% in BT- Ⅰ. Ghrelin concentrations at 0 min correlated directly with glucose level at 0 min in fir- Ⅰ （r = 0.898, P = 0.015）. There wasn＇t a significant correlation of ghrelin changes with glucose changes and insulin changes during OGTT in obese children with insulin resistance. CONCLUSION： In conclusion, in obese children with insulin resistance, ghrelin levels decreased with advancing pubertal stage. Ghrelin secretion suppression following OGTT was influenced by gender and pubertal stage. Baseline ghrelin levels and ghrelin suppression after OGTT did not significantly correlate with the degree of insulin resistance and insulin sensitivity.

关键词： Ghrelin Oral glucose tolerance test Insulinresistance Obese children

清抄本《方韵相转谱》的等韵理论及其所记“中州音”

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长江学术 2025年第1期 99-112页

作者：李军南昌大学客赣方言与语言应用研究中心江西南昌330031

清抄本《方韵相转谱》以《直图》韵图形式展现“中州音”,以之作为等韵通转的标准,将十四通(即“摄”)各韵母方音通转、古音叶音关系直观地反映出来。《方韵相转谱》虽沿袭了《直图》三十二声母系统,但以直观的方式反映了实际语音的声... 详细信息

清抄本《方韵相转谱》以《直图》韵图形式展现“中州音”,以之作为等韵通转的标准,将十四通(即“摄”)各韵母方音通转、古音叶音关系直观地反映出来。《方韵相转谱》虽沿袭了《直图》三十二声母系统,但以直观的方式反映了实际语音的声母系统特征;将《直图》四十四韵合并为三十二韵,很大程度上反映了实际语音韵母系统特征。为了反映完整的转音关系,以及受传统韵图影响,韵图借列字现象较多。根据韵图反映转音的方式,通过分析借列字的性质,判断帮非组、知照组字韵母实际读音而归纳出的实际语音系统与语音特征反映,《方韵相转谱》“中州音”是建立在河南中原官话基础上的,与现代郑州等地中原官话方言有很大程度的一致性。

关键词：韵图声母系统韵母系统转音关系中原官话

Low-temperature chemical solution synthesis of dendrite-like La(OH)_3 nanostructures and their thermal conversion to La_2O_3 nanostructures

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Rare Metals 2015年第6期34卷 395-399页

作者： Sheng-Chu li Shui-Jiang Hu Ning du Jia-Neng Fan li-jun Xu jun Xu Shaoxing Test Institute of Quality and Technical Supervision State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering Zhejiang University

A novel and simple chemical reaction method was developed to synthesize dendrite-like La（OH）3 nanostructures which was composed of centripetal arranged La（OH）3 nanorods with diameters of 50-100 nm and lengths of several micrometers. The effect of different alkaline sources on the morphology of La（OH）3 nanostructures was investigated. It is indicated that diethyl- enetriamine acts not only as an alkaline source, but also as a surfactant which induces the centripetal growth of La（OH）3 nanostructures. Moreover, dendrite-like La203 nanostructures were prepared by the calcination of La（OH）3 nanostructures at 750 ℃. The morphology, structure, and composition of the as-synthesized products were characterized by transmission electron microscopy （SEM）, high-resolution transmission electron microscopy, field emission scanning electron microscopy （FESEM）, and X-ray powder diffraction （XRD）.

关键词： Crystal growth Nanomaterials Kinetics