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Parvovirus B19 infection and B-cell response pattern in unexplained lymphadenopathy

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Chinese Medical Journal 2023年第18期136卷 2260-2262页

作者： Li Gong Jing Tian lanlan feng Shumei Wang Xiaoyan Liu Gaosheng Huang Wei Zhang Department of Pathology Tangdu HospitalAir Force Medical UniversityXi’anShaanxi 710038China Helmholtz Sina-German Research Laboratory for Cancer Tangdu HospitalAir Force Medical UniversityXi’anShaannxi 710038China Department of Pathology State Key Laboratory of Cancer BiologyXijing HospitalAir Force Medical UniversityXi’anShaanxi 710032China

Lymphadenopathy is defined as lymph nodes(LN)that are abnormal in size or consistency,usually with a diameter>1 cm.Common etiologies include malignancy,infection,autoimmune disorders,and medications.[1]Most patients obtain a definite diagnosis after undergoing a series of examinations.However,the etiology remains unclear in a small number of patients.

关键词： infection diagnosis pattern

拟合楼层反应谱的三向地震动时程生成方法研究

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应用力学学报 2024年第2期41卷 422-431页

作者：杨兰兰陈杰徐明悦付晨吉锋江南大学环境与土木工程学院无锡214122 中国地震局工程力学研究所地震工程与工程振动重点实验室哈尔滨150086 成都理工大学地质灾害防治与地质环境保护国家重点实验室成都610059

为获得满足规范要求的拟合楼层反应谱的三向地震动时程,采用六阶常微分方程的本征函数为基函数,分解并重构天然地震动时程;通过构建影响矩阵,迭代计算逐步调整本征函数的幅值系数,最终实现预设拟合精度;引入正交化方法保证三向地震动时... 详细信息

为获得满足规范要求的拟合楼层反应谱的三向地震动时程,采用六阶常微分方程的本征函数为基函数,分解并重构天然地震动时程;通过构建影响矩阵,迭代计算逐步调整本征函数的幅值系数,最终实现预设拟合精度;引入正交化方法保证三向地震动时程两两之间的统计独立性,并通过两组算例提供验证。研究结果表明,迭代所得时程反应谱与目标楼层反应谱的拟合精度较高,迭代过程中时程反应谱均匀一致地向目标谱逼近,迭代过程收敛,所得三向地震动时程均无零飘现象,满足规范要求。

关键词：抗震设计与分析楼层反应谱地震动时程拟合互相关系数本征函数

银催化邻羟基苯基炔丙醇5-exo-dig环化反应构筑2-亚甲基-2,3-二氢苯并呋喃-3-醇

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有机化学 2024年第4期44卷 1218-1225页

作者：冯淼吕兰兰郭一佳刘建全王香善江苏师范大学化学与材料科学学院江苏徐州221116

2-亚甲基-2,3-二氢苯并呋喃衍生物作为多种天然产物及药物的核心骨架之一,寻找由简便易得原料有效合成2-亚甲基-2,3-二氢苯并呋喃的新方法具有重要的意义.开发了一种新的银催化邻羟基苯基炔丙醇的5-exo-dig环化反应,为2-亚甲基-2,3-二... 详细信息

2-亚甲基-2,3-二氢苯并呋喃衍生物作为多种天然产物及药物的核心骨架之一,寻找由简便易得原料有效合成2-亚甲基-2,3-二氢苯并呋喃的新方法具有重要的意义.开发了一种新的银催化邻羟基苯基炔丙醇的5-exo-dig环化反应,为2-亚甲基-2,3-二氢苯并呋喃的构筑提供了一种高效、模块化的方法.在室温条件下,反应仅需使用2 mol%量的银催化剂和5 mol%的异腈为配体,具有条件温和、操作简单和高效等优点.

关键词：银异腈环化炔丙醇苯并呋喃

目标管理理论的护理模式在新生儿高胆红素血症患儿中的应用

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国际医药卫生导报 2024年第4期30卷 549-552页

作者：冯福云曹静石兰兰郑州大学附属儿童医院、河南省儿童医院、郑州儿童医院新生儿重症监护室郑州450000

目的探讨目标管理理论的护理模式在新生儿高胆红素血症患儿中的应用效果。方法选取2021年1月至2023年1月郑州大学附属儿童医院94例新生儿高胆红素血症患儿,按入院顺序分为目标管理组(47例)、常规组(47例)。常规组男25例,女22例,胎龄36~4... 详细信息

目的探讨目标管理理论的护理模式在新生儿高胆红素血症患儿中的应用效果。方法选取2021年1月至2023年1月郑州大学附属儿童医院94例新生儿高胆红素血症患儿,按入院顺序分为目标管理组(47例)、常规组(47例)。常规组男25例,女22例,胎龄36~42(39.03±1.07)周。目标管理组男21例,女26例,胎龄36~42(38.94±1.12)周。常规组实施常规护理,目标管理组在常规组基础上实施目标管理理论的护理模式,两组均干预至患儿病情恢复。比较两组干预前后血清胆红素水平、睡眠时间[简明婴儿睡眠问卷(Brief Infant Sleep Questionnaire,BISQ)]及黄疸消退时间、不适症状、家属满意度[纽卡斯尔护理满意度量表(Newcastle Satisfaction with Nursing Scale,NSNS)]。采用t检验、χ^(2)检验。结果干预后目标管理组血清胆红素水平(157.49±15.82)μmol/L低于常规组(204.83±15.29)μmol/L(P0.05)。目标管理组家属满意度[95.74%(45/47)]高于常规组[68.09%(32/47)](P<0.05)。结论将目标管理理论的护理模式应用于新生儿高胆红素血症患儿中,能降低血清胆红素水平、缩短黄疸消退时间、延长睡眠时间、提高家属满意度。

关键词：新生儿高胆红素血症目标管理理论护理睡眠时间不适症状

Plasma-activated ethanol solution and it's decontamination effect

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High Voltage 2023年第4期8卷 833-840页

作者： YiQian Li JiaLin Liu feng Zhao Ke Song lanlan Nie DaWei Liu XinPei Lu State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhanHubeiChina Department of Thoracic Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Center of Stomatology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

Ethanol solution as a disinfectant has been widely used in various fields.However,it has a significant bactericidal capability only when the volume fraction of ethanol is around 70%-75%.For such high concentration of ethanol solution,it has an irritating smell.When it is used for applications such as wound disinfection,it causes a stinging sensation.Low concentrations of ethanol solution are less irritating,but it is also less effective at killing bacteria.In this study,an idea for producing a green,efficient and less irritating disinfectant is proposed.It is based on a plasma-activated low-concentration ethanol solution(PAES).It is found that the plasma-activated 10% volume fraction of ethanol solution can kill more than seven orders of magnitude of Escherichia coli,while the untreated 10% volume fraction of ethanol solution has no bactericidal effect.Besides,the PAES's activity remains unchanged after being stored at -20℃ for three days.Further investigation shows that new compositions including peracetic acid,peroxynitrite,hydrogen peroxide and acetic acid are detected in the PAES,which together are playing the main role of the excellent and prolonged bactericidal effect.

关键词： effect. ethanol unchanged

增液汤加减联合耳穴压贴治疗肝肾阴虚型帕金森病便秘的疗效观察

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浙江中西医结合杂志 2024年第7期34卷 619-622页

作者：董丽萍李兰兰冯晓宾浙江省湖州市第三人民医院中医科湖州313000

帕金森病是神经变性疾病,表现为动作缓慢、静止性震颤、肢体僵硬等运动症状和便秘、睡眠障碍、疲劳、疼痛等非运动症状^([1-2])。该病病机属于本虚标实,本虚为肝脾肾亏损,肾精亏虚为本病发病的起始病机,且贯穿疾病始终^([3])。便秘是帕... 详细信息

帕金森病是神经变性疾病,表现为动作缓慢、静止性震颤、肢体僵硬等运动症状和便秘、睡眠障碍、疲劳、疼痛等非运动症状^([1-2])。该病病机属于本虚标实,本虚为肝脾肾亏损,肾精亏虚为本病发病的起始病机,且贯穿疾病始终^([3])。便秘是帕金森病患者最常见的非运动症状,甚至为其前驱症状^([4]),对生活质量负面影响较大,并影响患者胃肠道药物吸收。服用泻药治疗帕金森病便秘短期疗效显著,但长期使用会造成药物依赖,损害肠壁神经,引发结肠黑变病,甚至诱发结肠癌^([5])。中医内外治法治疗帕金森病便秘不仅可以强化西药治疗的效果,而且安全性高。

关键词：帕金森病便秘耳穴压贴增液汤肝肾阴虚型

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灵泉露天矿生态修复效果及驱动因素分析

中国矿业 2024年第3期33卷 43-50页

作者：邹兰兰冯启言郝明孟庆俊王立艳秦东富中国矿业大学环境与测绘学院江苏徐州221116 扎赉诺尔煤业有限责任公司内蒙古满洲里021410

煤矿开采通常会破坏土壤、植被,从而造成生态损伤。目前,高寒地区露天矿的生态修复工作尚处在起步阶段,针对高寒地区露天矿开展的生态修复效果及其驱动因素分析的研究较少。以灵泉露天矿为研究区,基于2009—2022年共11期Landsat影像,利... 详细信息

煤矿开采通常会破坏土壤、植被,从而造成生态损伤。目前,高寒地区露天矿的生态修复工作尚处在起步阶段,针对高寒地区露天矿开展的生态修复效果及其驱动因素分析的研究较少。以灵泉露天矿为研究区,基于2009—2022年共11期Landsat影像,利用像元二分模型计算植被覆盖度,对矿区生态修复前后开展长时序植被覆盖动态监测,并进行生态修复效果和驱动因素分析。研究结果显示:矿区近十年来的植被覆盖度总体呈上升趋势,2017年大面积修复以后上升趋势尤为显著。气温和降水量是导致高寒地区露天矿植被覆盖度发生波动性变化的关键自然因素,其中,降水量是影响植被覆盖度持续上升的主要自然因素。植被覆盖度和土壤养分含量的变化相辅相成,植被覆盖度上升的同时会使土壤肥力提升,土壤肥力提升后又会促进植被覆盖度的上升。人工修复是高寒地区露天矿生态修复的主要方式,是高寒地区露天矿植被覆盖度上升的主要原因。研究结果表明,多年来的生态修复工作取得了显著效果,同时可为高寒地区露天矿的生态修复提供科学依据。

关键词：生态修复高寒地区像元二分模型最小二乘法植被覆盖度灵泉露天矿

Flexible, self-cleaning, and high-performance ceramic nanofiber-based moist-electric generator enabled by interfacial engineering

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Science China(Technological Sciences) 2022年第2期65卷 450-457页

作者： WANG LiMing feng lanlan SUN Zhao Yang HE XinYang WANG RongWu QIN XiaoHong YU JianYong Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China

Due to their long-term stability, even under extreme conditions, oxide ceramics have attracted significant attention in emerging fields like moist-electric generation. However, the inherent brittleness and low voltage output of oxide ceramic-based moistelectric generators(MEGs) limit their applications in wearable electronics. Herein, a facile strategy involving the combination of sol-gel electrospinning and calcination is used to fabricate flexible and freestanding Ti O_(2)/Zr O_(2)(TZ) composite nanofiber-based MEGs. The excellent flexibility of the TZ nanofiber membranes can be attributed to the suppression of their crystal structure transformation, dispersion of stress concentration, and reduction of crack propagation via interfacial engineering. The porous structure of the electrospun nanofiber membrane features an abundance of charged narrow channels for the diffusion of water molecules and generates a streaming potential. The optimal voltage output reached ~0.8 V, which is the highest value reported for an oxide ceramic-based MEG. Furthermore, the as-fabricated nanofiber-based MEG exhibits good self-cleaning capability to degrade organic pollutants under ultraviolet irradiation. By integrating mechanical flexibility, high performance, and a selfcleaning effect, this work presents a new idea for exploring diverse, efficient, and wearable oxide ceramic-based MEGs.

关键词： moist-electric generation ceramic nanofiber electrospinning flexible self-cleaning

CC@BCN@PANI core-shell nanoarrays as ultra-high cycle stability cathode for Zn-ion hybrid supercapacitors

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能源前沿:英文版 2023年第4期17卷 555-566页

作者： Shixian XIONG Hongcheng KE Lei CAO Yu WANG Qian ZHU Liqin ZHONG lanlan FAN feng GU Nanchang Key Laboratory for Advanced Manufacturing of Electronic Information Materials and Devices/Jiangxi Provincial Key Laboratory for Simulation and Modelling of Particulate Systems International Institute for InnovationJiangxi University of Science and TechnologyNanchang330013China

Exploring cathode materials that combine excellent cycling stability and high energy density poses a challenge to aqueous Zn-ion hybrid supercapacitors(ZHSCs).Herein,polyaniline(PANI)coated boron-carbon-nitrogen(BCN)nanoarray on carbon cloth surface is prepared as advanced cathode materials via simple high-temperature calcination and electrochemical deposition methods.Because of the excellent specific capacity and conductivity of PANI,the CC@BCN@PANI core-shell nanoarrays cathode shows an excellent ion storage capability.Moreover,the 3D nanoarray structure can provide enough space for the volume expansion and contraction of PANI in the charging/discharging cycles,which effectively avoids the collapse of the microstructure and greatly improves the electrochemical stability of PANI.Therefore,the CC@BCN@PANI-based ZHSCs exhibit superior electrochemical performances showing a specific capacity of 145.8 mAh/g,a high energy density of 116.78 Wh/kg,an excellent power density of 12 kW/kg,and a capacity retention rate of 86.2%after 8000 charge/discharge cycles at a current density of 2 A/g.In addition,the flexible ZHSCs(FZHSCs)also show a capacity retention rate of 87.7%at the current density of 2 A/g after 450 cycles.

关键词： CC@BCN@PANI cathode Zn-ion hybrid supercapacitor core-shell nanoarrays high energy density ultra-high cycle stability