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Monitoring cerebral ischemia using cerebral oximetry:pros and cons

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The Journal of Biomedical Research 2016年第1期30卷 1-4页

作者： Yun Yu Yi Lu lingzhong meng Ruquan Han Department of Anesthesiology Beijing Tian Tan HospitalCapital Medical University School of Medicine University of California San Francisco Department of Anesthesia and Perioperative Care University of California.San Francisco

Introduction The high metabolic rate of oxygen in the human brain accounts for its extreme susceptibility to ischemic-hypoxic *** brain injury such as stroke is a potential neurologic complication in a variety of surgeries,including cardiac surgery,neurosurgery,and vascular surgery,particularly in patients at high risk for ischemic stroke^（[2]）.In addition,ischemic brain injury accounts for

关键词： hypoxic extreme neurosurgery NIRS susceptibility endarterectomy intraoperative saturation physiological postoperative

Investigation on the crystal structure and mechanical properties of the ternary compound Mg_(11-x)Zn_(x)Sr combined with experimental measurements and first-principles calculations

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Journal of Magnesium and Alloys 2023年第3期11卷 1074-1082页

作者： Jian Wang lingzhong meng Zhang Zhang Baisheng Sa Xiaoxiao Fu Liyuan Sheng Daokui Xu Yufeng Zheng School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Key Laboratory of Eco-materials Advanced Technology College of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Shenzhen Institute Peking UniversityShenzhen518057China PKU-HKUST ShenZhen-HongKong Institution Shenzhen 518057China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang110016China

A new ternary compound,Mg_(11-x)Zn_(x)Sr in the Mg-Zn-Sr system was observed and studied using Scanning Electron Microscopy(SEM),Energy-Dispersive Spectroscope(EDS),X-Ray Diffraction(XRD)and Transmission Electron Microscopy(TEM).The XRD patterns were refined by the Rietveld refinement method and the results revealed that the crystallized Mg_(11-x)Zn_(x)Sr phase belonged to tetragonal I41/amd space group and had the Cd_(11)Ba *** Mg atoms were successfully doped into Zn_(11)Sr crystal lattice by occupying Zn atomic ***,the Rietveld refinement and computational results demonstrated a gradual decrease in the a-axis and c-axis lattice parameters with decreasing concentration levels of Mg coordination substitution in the lattice of Mg_(11-x)Zn_(x)Sr *** elastic constants and modulus of the Mg_(11-x)Zn_(x)Sr compounds calculated by first-principles calculations(FPC)indicated they were increased with the increasing of Zn *** variation of hardness,D-band widths and the total density of states for Mg_(11-x)Zn_(x)Sr compounds with Zn content was discussed.

关键词： Mg-Zn-Sr system Crystal structure Hardness Elastic constants Modulus

Monitoring cerebral ischemia during cerebrovascular surgery

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The Journal of Biomedical Research 2017年第4期31卷 279-282页

作者： Hong Zhang lingzhong meng Russ Lyon Dong-Xin Wang Department of Anesthesiology and Critical Care Medicine Peking University First Hospital Peking University Health Science Center Beijing 100083 China Department of Anesthesia and Perioperative Care University of California San Francisco San Francisco CA 94143USA Department of Neuromonitoring University of California San Francisco San Francisco CA 94143 USA

Patients undergoing intracranial cerebrovascular surgery under general anesthesia are at risk of cerebral ischemia due to the nature of the surgery and/or the underlying cerebrovascular occlusive *** is thus imperative to reliably and continuously monitor cerebral perfusion during this type of surgery to timely reverse ischemic *** aim of this review is to discuss the techniques currently available for monitoring cerebral ischemia during cerebrovascular surgery with a focus on the advantages and disadvantages of each technique.

关键词： cerebrovascular surgery cerebral ischemia intraoperative monitoring

Corrosion and in vitro cytocompatibility investigation on the designed Mg-Zn-Ag metallic glasses for biomedical application

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Journal of Magnesium and Alloys 2024年第4期12卷 1566-1580页

作者： Jian Wang lingzhong meng Weixin Xie Chen Ji Ronghua Wang Pinghu Zhang Liling Jin Liyuan Sheng Yufeng Zheng School of Mechanical Engineering Yangzhou UniversityYangzhou225127China Department of Materials Science and Engineering Seoul National UniversitySeoulSouth Korea Huizhou Port Customs Huizhou516081China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Institute of Translational MedicineMedical CollegeYangzhou UniversityYangzhou225009China Center for Research in Computational Thermochemistry(CRCT) Department of Chemical EngineeringEcole polytechnique de MontréalMontréalQuébecH3C 3A7Canada Shenzhen Institute Peking UniversityShenzhen 518057China PKU-HKUST ShenZhen-HongKong Institution Shenzhen518057China

In the present work,seven Mg-Zn-Ag alloys with the nominal composition of Mg_(96-x)Zn_(x)Ag_(4)(x=17,20,23,26,29,32,35 in at.%)were prepared by induction melting and single-roller *** X-ray diffraction(XRD)analyses indicate the metallic glasses with three composition of Mg_(73)Zn_(23)Ag_(4),Mg_(70)Zn_(26)Ag_(4),and Mg_(67)Zn_(29)Ag_(4)were obtained *** differential scanning calorimetry(DSC)measurement was used to obtain the characteristic temperature of Mg-Zn-Ag metallic glasses for the glass-forming ability *** maximum glass transition temperature(Trg)was found to be 0.525 with a composition close to Mg_(67)Zn_(29)Ag_(4),which results in the best glass-forming ***,the immersion test in simulated body fluid(SBF)demonstrate the relative homogeneous corrosion behavior of the Mg-Zn-Ag metallic *** corrosion rate of Mg-Zn-Ag metallic glasses in SBF solution decreases with the increase of Zn *** sample Mg_(67)Zn_(29)Ag_(4)has the lowest corrosion rate of 0.19mm/yr,which could meet the clinical application requirement *** in vitro cell experiments show that the Madin-Darby canine kidney(MDCK)cells cultured in sample Mg_(67)Zn_(29)Ag_(4)and its extraction medium have higher ***,the Mg-Zn-Ag metallic glasses exhibit obvious inhibitory effect on human rhabdomyosarcoma(RD)tumor *** present investigations on the glass-forming ability,corrosion behavior,cytocompatibility and tumor inhibition function of the Mg-Zn-Ag based metallic glass could reveal their biomedical application possibility.

关键词： Metallic glasses Mg-Zn-Ag Corrosion behavior In vitro cytocompatibility

Cerebral ischemia during surgery:an overview

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The Journal of Biomedical Research 2016年第2期30卷 83-87页

作者： Zhi-Bin Zhou lingzhong meng Adrian W.Gelb Roger Lee Wen-Qi Huang Department of Anesthesiology First Affiliated Hospital of Sun Yat-sen University Department of Anesthesia and Perioperative Care University of California San Francisco

Cerebral ischemia is the pathophysiological condition in which the oxygenated cerebral blood flow is less than what is needed to meet cerebral metabolic *** is one of the most debilitating complications in the perioperative period and has serious clinical *** monitoring and prevention of intraoperative cerebral ischemia are crucial because an anesthetized patient in the operating room cannot be neurologically *** this paper,we provide an overview of the definition,etiology,risk factors,and prevention of cerebral ischemia during surgery.

关键词： perioperative cerebral ischemia definition risk factor prevention

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中美两国体育保险现状的比较分析

体育与科学 2009年第3期30卷 54-56页

作者：张平孟令忠山东农业大学体育与艺术学院

运用文献资料法、比较分析法,从不同角度对中美两国体育保险的现状进行了对比分析,旨在找出我国体育保险的不足之处,并借鉴美国的成熟经验,为我国体育保险建立参照系。

关键词：中国美国体育保险比较

手术和危重病人的血压,自主调节和转归:一个带有虚边的三角形（英文）

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手术和危重病人的血压,自主调节和转归:一个带有虚边的三角形（英...

2017中国中西医结合麻醉学会[CSIA]年会暨第四届全国中西医结合麻醉学术研讨会暨陕西省中西医结合学会麻醉专业委员会成立大会

作者： lingzhong meng Department of Anesthesiology Yale University School of Medicine New Haven CT

Objectives:*** the relationship between pressure and *** the current evidence associating pressure with *** the current evidence associating autoregulation with *** the priorities of future research

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体育课程理论价值取向探析

体育与科学 2006年第1期27卷 86-87页

作者：原建军孟令忠曲阜师范大学体育科学学院山东农业大学体育与艺术学院

文章分析了目前国内体育课程研究的现状,提出体育课程理论的价值取向问题的研究,对于具体的体育教学实践和体育课程实施的基础性意义。

关键词：体育课程价值取向专业学科技能社会价值整合自我实现

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中国大陆麻醉住院医师毕业后教育的探讨

临床麻醉学杂志 2015年第11期31卷 1137-1139页

作者：王振猛 Chuanyao Tong lingzhong meng Jianzhong Sun Shaofeng Zhou Zhongcong Xie Hong Liu 张成密赵晶俞卫锋上海东方肝胆外科医院麻醉科 200438 Winston Salem Department of AnesthesiologyWake Forest University San Francisco Department of Anesthesia and Perioperative CareUniversity of California San Francisco Philadelphia Department of AnesthesiologyThomas Jefferson University and Hospitals Houston Department of AnesthesiologyUniversity of Texas Medical School at Houston Charlestown Department of AnesthesiaCritical Care and Pain MedicineMassachusetts General Hospital Sacramento Department of Anesthesiology and Pain MedicineUniversity of California Davis Medical Center 上海新华医院麻醉科北京协和医院麻醉科

经过近几年在全国部分省市试点后,2015年教育部和卫计委正式通知在全国范围内改变医学教育的现有模式,新的规范化培养（简称规培）已经逐步开展并日渐规范。各专科住院医师规范化培训的目的是培养具有现代医学素质的专职人员,能够胜任... 详细信息

经过近几年在全国部分省市试点后,2015年教育部和卫计委正式通知在全国范围内改变医学教育的现有模式,新的规范化培养（简称规培）已经逐步开展并日渐规范。各专科住院医师规范化培训的目的是培养具有现代医学素质的专职人员,能够胜任现代医学的临床要求。同时对住院医师进行评估和考核已经日趋重要,同样需要通过规范化的方式进行。现将美国麻醉住院医师培训考核模式与国内麻醉住院医师考核方式进行比较。

关键词：住院医师现有模式医学教育后教育现代医学临床能力中国医师协会临床麻醉医学院校医学本科生