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Electrochemical Activation of CO_2 for the Synthesis of Ethyl Carbanilate under Mild Conditions

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Chemical Research in Chinese Universities 2007年第6期23卷 708-711页

作者： NIU Dong-fang XU Cheng-tian luo yi-wen ZHANG Li LU Jia-xing Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of Chemistry East China Normal University Shanghai 200062 P. R. China

A novel electrochemical procedure for the synthesis of ethyl carbanilate from aniline and carbon dioxide was developed via the selective cathodic reduction of carbon dioxide in CO2-saturated DMF solution containing 0. 1 mol/L TEABr at room temperature, followed by the addition of Eft as an alkylating agent. The synthesis was carried outun der mild[p（CO2） = 1.0×10^5 Pa, t =20 ℃ ] and safe conditions. Influences of the nature of the electrodes, the current densities, the passed charges during electrolysis, temperatures, and supporting electrolytes on the yield of ethyl carbanilate were studied to optimize the electrolytic conditions. The selectivity of ethyl carbanilate is 100%.

关键词： Carbon dioxide Electrochemistry Aniline Synthesis Ethyl carbanilate Mild condition

先天性心脏病术后患儿口渴程度现状及影响因素分析

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中国心血管病研究 2024年第2期22卷 136-140页

作者：杨志敏袁理邓含芳张雯澜罗雯懿上海交通大学医学院附属上海儿童医学中心心胸外科上海市200127 上海交通大学医学院附属上海儿童医学中心护理部上海市200127 上海交通大学护理学院福建医科大学妇儿临床医学院、福建省儿童医院(上海儿童医学中心福建医院)重症医学科

目的了解先天性心脏病(先心病)术后患儿口渴程度现状及其影响因素。方法选取2022年10月至2023年8月在上海交通大学医学院附属上海儿童医学中心心胸外科监护室接受治疗的6~18岁出现口渴症状的先心病患儿为研究对象,采用一般资料调查、数... 详细信息

目的了解先天性心脏病(先心病)术后患儿口渴程度现状及其影响因素。方法选取2022年10月至2023年8月在上海交通大学医学院附属上海儿童医学中心心胸外科监护室接受治疗的6~18岁出现口渴症状的先心病患儿为研究对象,采用一般资料调查、数字评分量表和口腔湿度仪进行调查,采用有序多分类logistic回归模型进行影响因素分析。结果共纳入165例患儿,其中轻度口渴的有23例(13.94%),中度口渴的有67例(40.61%),重度口渴的有75例(45.45%)。单因素分析显示,年龄、有无张口呼吸、钠离子、血糖、口腔湿度、液体平衡对先心术后患儿口渴程度的影响有统计学意义(P<0.05)。多因素分析显示,张口呼吸(OR=3.47,95%CI 1.77~6.81,P<0.001)、高血糖(OR=1.26,95%CI 1.02~1.55,P=0.031)、液体负平衡(OR=0.57,95%CI 0.33~0.99,P=0.045)、口腔湿度低(OR=0.081,95%CI 0.70~0.93,P=0.004)是先心术后患儿口渴程度的危险因素。结论先心术后患儿口渴程度较高。对于出现张口呼吸、高血糖、液体负平衡以及口腔湿度低的患儿,医护人员应重点关注其口渴情况,并及时采取相应的护理措施以缓解患儿的不适。

关键词：先天性心脏病外科手术儿童口渴影响因素

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钢铁烟尘灰资源化利用措施及展望

广州化工 2024年第11期52卷 1-3,9页

作者：江思敏李大洋罗亿雯麦雅晴严迎燕王文祥广东环境保护工程职业学院广东佛山528216 佛山市危险废物安全处置与综合利用工程技术研究中心广东佛山528216

钢铁烟尘灰是钢铁行业产量较大的一种废料,因其含有锌、铅、钾、钠等金属元素,既对生态环境存在一定的威胁,又具有回收资源化的潜在价值。通过查阅大量国内外相关资料,阐述了钢铁烟尘灰的来源和特性,综述了钢铁烟尘灰资源利用的主要工... 详细信息

钢铁烟尘灰是钢铁行业产量较大的一种废料,因其含有锌、铅、钾、钠等金属元素,既对生态环境存在一定的威胁,又具有回收资源化的潜在价值。通过查阅大量国内外相关资料,阐述了钢铁烟尘灰的来源和特性,综述了钢铁烟尘灰资源利用的主要工艺技术,结合新时代国家可持续发展战略,提出了钢铁烟尘灰与生活垃圾焚烧飞灰协同处置的新思路,为我国钢铁烟尘灰和生活垃圾焚烧飞灰资源综合利用的新发展提供了科学参考。

关键词：钢铁烟尘灰来源与特性资源化利用新思路

Iron-based layered double hydroxide packed with metal-organic frameworks for enhanced overall water-splitting electrocatalysis

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Tungsten 2024年第4期6卷 859-868页

作者： Long Chen Yun luo Zhi-Peng Yu yi-Kun Cheng Yang Zheng Li He Jia-Hao Xiong wen-wen Kong Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical Engineering Shihezi University Institute of Scientific Research Luzhou North Chemistry Industry Co.Ltd International Iberian Nanotechnology Laboratory (INL) CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Key Laboratory of Electronic Information Materials and Devices Center of Materials Science and Optoelectronics Engineering Xinjiang Technical Institute of Physics and Chemistry of CAS

Designing hybrid materials with numerous catalytic active sites,high specific surface area,and interfacial interactions is an effective strategy to improve electrocatalytic *** this work,iron-based metal organic frameworks（Fe-MOFs）@（Co,Ni）Fe-layered double hydroxide（LDH） is successfully constructed using the similar "MOF growing on LDH" strategy for oxygen evolution reaction and hydrogen evolution reaction in the alkaline *** synthesized hybrid materials in this particular way show excellent electrochemical overall water-splitting performance with the cell voltage of 1.62 V at10 mA·cm-2in the alkaline environment due to the optimized adsorption/desorption properties of metal ions on oxygencontaining species and interfacial effects of hybrid ***-MOFs@（Co,Ni）Fe-LDH also exhibits excellent hydrogen and oxygen production efficiency of 370 and 175 μL·min-1,*** work draws on an effective approach to the fabrication of MOF@LDH structures and provides new insights into overall water-splitting in alkaline conditions.

关键词： Electrocatalysis Interfacial interactions Layered double hydroxide Metal–organic frameworks (MOFs) Water splitting

Bayesian network-based survival prediction model for patients having undergone post-transjugular intrahepatic portosystemic shunt for portal hypertension

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World Journal of Gastroenterology 2024年第13期30卷 1859-1870页

作者： Rong Chen Ling luo Yun-Zhi Zhang Zhen Liu An-Lin Liu yi-wen Zhang Department of Infectious Diseases Second Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Portal hypertension(PHT),primarily induced by cirrhosis,manifests severe symptoms impacting patient *** transjugular intrahepatic portosystemic shunt(TIPS)is a critical intervention for managing PHT,it carries risks like hepatic encephalopathy,thus affecting patient survival *** our knowledge,existing prognostic models for post-TIPS survival in patients with PHT fail to account for the interplay among and collective impact of various prognostic factors on ***,the development of an innovative modeling approach is essential to address this *** To develop and validate a Bayesian network(BN)-based survival prediction model for patients with cirrhosis-induced PHT having undergone *** The clinical data of 393 patients with cirrhosis-induced PHT who underwent TIPS surgery at the Second Affiliated Hospital of Chongqing Medical University between January 2015 and May 2022 were retrospectively *** were selected using Cox and least absolute shrinkage and selection operator regression methods,and a BN-based model was established and evaluated to predict survival in patients having undergone TIPS surgery for *** Variable selection revealed the following as key factors impacting survival:age,ascites,hypertension,indications for TIPS,postoperative portal vein pressure(post-PVP),aspartate aminotransferase,alkaline phosphatase,total bilirubin,prealbumin,the Child-Pugh grade,and the model for end-stage liver disease(MELD)*** on the above-mentioned variables,a BN-based 2-year survival prognostic prediction model was constructed,which identified the following factors to be directly linked to the survival time:age,ascites,indications for TIPS,concurrent hypertension,post-PVP,the Child-Pugh grade,and the MELD *** Bayesian information criterion was 3589.04,and 10-fold cross-validation indicated an average log-likelihood loss of 5.55 with a standard deviation of *** model’s acc

关键词： Bayesian network Cirrhosis Portal hypertension Transjugular intrahepatic portosystemic shunt Survival prediction model

Gear walk instability caused by brake-disc friction characteristics

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Chinese Journal of Aeronautics 2024年第2期37卷 343-359页

作者： Xiaoqiong DU Bin LI wen CAI Linyin luo School of Aeronautics Northwestern Polytechnical UniversityXi’an 710072China Department of Mechanical Engineering University of MichiganAnn Arbor 48109USA AVIC General Huanan Aircraft Industry Co.Ltd. Zhuhai 519040China

A multi-body dynamic rigid-flexible coupling model of landing gear is established to study the gear walk instability caused by the friction characteristics of the brake *** validating the model with the experimental results,the influence of the landing gear structure and braking system parameters on gear walk is further *** the above factors,the slope of the graph for the friction coefficient of the brake disc and the relative velocity of brake stators and rotors is the most influential factor on gear walk *** trajectory analysis verifies that gear walk occurs when the coupling of multiple factors causes the system to exhibit an equivalent negative damping *** consider a more realistic braking case,a back propagation neural network method is employed to describe the nonlinear behavior of the friction coefficient of the brake *** the realistic nonlinear model of the friction coefficient,the maximum error in predicting the braking torque is less than 10%and the effect of the brake disc temperature on gear walk is *** results reveal that a more negative friction slope may contribute to a more severe unstable gear walk,and reducing the braking pressure is an effective approach to avoid gear walk,which provides help for future braking system design.

关键词： Gear walk Friction characteristics of brake disc Brake-induced vibration Negative damping Rigid-flexible coupling Negative slope of braking torque

Intravitreal injection of conbercept for diabetic macular edema complicated with diabetic nephropathy

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International Journal of Ophthalmology(English edition) 2024年第2期17卷 304-310页

作者： Yuan-Zhang Zhu Zhi-Zhi Dou wen-ying Wang Qing-Yue Ma wen-Dan yi Ning-Ning Yao yi-Chong Liu Xiao-Di Gao Qian Zhang wen-Juan luo Department of Ophthalmology the Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina

AIM:To observe the therapeutic effect of conbercept on diabetic macular edema(DME)complicated with diabetic nephropathy(DN).METHODS:In this retrospective study,54 patients(54 eyes)that diagnosed as DME from January 2017 to October 2021 were *** patients were divided into two groups:DME patients with DN(25 eyes),and DME patients without DN(29 eyes).General conditions were collected before treatment,laboratory tests include fasting blood glucose,HbA1c,microalbumin/creatinine,serum *** coherence tomography(OCT)was used to check the ellipsoidal zone(EZ)and external limiting membrane(ELM)*** macular thickness(CMT),best corrected visual acuity(BCVA),and retinal hyperreflective foci(HF)as well as numbers of injections were ***:There were significant differences between fasting blood glucose,HbA1c,serum creatinine,urinary microalbumin/creatinine,and estimated glomerular filtration rate(eGFR)between the two groups(all P<0.05).EZ and ELM continuity in the DME+DN group was worse than that in the DME group(P<0.05).BCVA(logMAR)in the DME group was significantly better than that in the DME+DN group at the same time points during treatment(all P<0.05).CMT and HF values were significantly higher in the DME+DN group than that in the DME group at the all time points(all P<0.05)and significantly decreased in both groups with time during *** 6mo after treatment,the mean number of injections in the DME+DN and DME group was 4.84±0.94 and 3.79±0.86,***:Conbercept has a significant effect in short-term treatment of DME patients with or without DN,and can significantly ameliorate BCVA,CMT and the number of HF,treatment efficacy of DME patients without DN is better than that of DME patients with DN.

关键词： conbercept diabetic nephropathy diabetic macular edema optical coherence tomography

Ankylosing spondylitis coexisting with Clonorchis sinensis infection: A case report

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World Journal of Clinical Cases 2024年第5期12卷 1018-1024页

作者： Tian-Xin yi Wei Liu wen-Fei Leng Xiao-Chuan Wang Liang luo Department of Rheumatology Traditional Chinese Medicine Hospital Dianjiang ChongqingChongqing 408300China Department of Orthopaedic Traditional Chinese Medicine Hospital Dianjiang ChongqingChongqing 408300China Department of Chinese Medicine The People's Hospital of Yubei District of Chongqing CityChongqing 401120China

BACKGROUND Ankylosing spondylitis(AS)is a chronic immune-mediated inflammatory *** prevailing theory links AS onset to infections in susceptible ***,infections may impair the immune *** studies have investigated links between AS and various infections-bacterial,viral,fungal,and other microorganism ***,limited attention has been given to the association between AS and Clonorchis sinensis(***)*** SUMMARY A 27-year-old male with a 10-yr history of AS presented to our hospital with inflammatory lower back pain as the primary *** years ago,the patient had achieved a stable condition after treatment with biological ***,he experienced a recurrence of lumbosacral pain with an unexplained cause 10 d before hospital admission.A lumbosacral magnetic resonance imaging(MRI)scan revealed bone marrow edema in the left sacroiliac joint,and laboratory indicators were ***,the presence of *** eggs was detected in the *** patient was prescribed praziquantel,resulting in the disap-pearance of *** eggs in subsequent routine stool tests and relief from lumbosacral pain.A follow-up MRI scan performed after 4 months revealed a reduction in bone marrow edema around the left sacroiliac *** *** infections could potentially trigger the exacerbation of *** should pay attention to investigating the presence of *** Ankylosing spondylitis(AS)is a chronic inflammatory and rheumatic disease resulting from an imbalance between innate and acquired immune responses[1].While it can affect any part of the spine,its primary symptoms are persistent back pain and stiffness in the lower back and *** prevalence of AS per 10000 individuals is 23.8 in Europe,31.9 in North America,16.7 in Asia,10.2 in Latin America,and 7.4 in Africa[2].Infections commonly occur in the first 3 months and may act as potential triggers for the

关键词： Ankylosing spondylitis Clonorchis sinensis Parasites Infection Case report

Multicomponent remote C(sp^(2))–H bond addition by Ru catalysis:An efficient access to the alkylarylation of 2H-imidazoles

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Chinese Chemical Letters 2024年第10期35卷 257-261页

作者： yi luo Lin Dong Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu 610041China

Sequential C–H bond addition with two different coupling partners is a powerful method for the rapid and modular construction of complex molecules based on simple starting ***,an efficient ruthenium-catalysed multicomponent long-range C–H functionalization of 2H-imidazoles was *** protocol showed good substrate suitability and yielded alkyl arylation products with potential biological activity.

关键词： Remote C-H functionalization Multi-component reaction Ruthenium catalysis 2H-Imidazoles