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新型冠状病毒感染合并横纹肌溶解症1例

皮肤科学通报 2024年第2期41卷 214-216页

作者：裴志超朱函坪孙一晟姚苹苹徐芳沈鑫浙江省疾病预防控制中心微生物所浙江杭州310051 宿迁市第一人民医院医学检验科江苏宿迁223800

患者男,30岁,长期进行高强度训练运动,新型冠状病毒感染后出现全身肌肉酸痛、乏力等症状持续半月余,体力不能支撑体育运动。3个月后患者自觉身体恢复开始进行适应性训练,1周后出现胸闷、肌肉剧烈疼痛、乏力、尿液呈茶色等症状。入院查体... 详细信息

患者男,30岁,长期进行高强度训练运动,新型冠状病毒感染后出现全身肌肉酸痛、乏力等症状持续半月余,体力不能支撑体育运动。3个月后患者自觉身体恢复开始进行适应性训练,1周后出现胸闷、肌肉剧烈疼痛、乏力、尿液呈茶色等症状。入院查体:双上肢肌肉压痛,四肢活动正常,未见明显水肿;实验室检查:血浆中肌酸激酶31 007 U/L,血清肌酸激酶同工酶153 U/L,肌红蛋白2170 ng/mL。诊断:横纹肌溶解症。经过补液、碱化尿液等治疗后,患者肝肾功能、心肌酶谱各项指标均下降至正常范围内,遂出院。

关键词：新型冠状病毒横纹肌溶解症肌酸激酶

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多孔钽金属治疗大鼠颅骨缺损的早期疗效

中华实验外科杂志 2024年第1期41卷 108-111页

作者：裴鸿鑫明朝畅曹前前李红燕代志鹏新乡医学院新乡453003 河南省人民医院骨科郑州大学人民医院郑州450003

目的探讨多孔钽金属治疗大鼠颅骨缺损的早期治疗效果。方法采用钻孔法制备大鼠颅骨缺损动物模型,采用随机数字表法将大鼠分为对照组,钽金属植入组,每组6只。通过小动物成像X光实验检测多孔钽金属注入情况;通过翻红O固绿染色及苏木精-伊... 详细信息

目的探讨多孔钽金属治疗大鼠颅骨缺损的早期治疗效果。方法采用钻孔法制备大鼠颅骨缺损动物模型,采用随机数字表法将大鼠分为对照组,钽金属植入组,每组6只。通过小动物成像X光实验检测多孔钽金属注入情况;通过翻红O固绿染色及苏木精-伊红(HE)染色观察骨缺损处骨再生;通过多孔钽金属与骨髓间充质干细胞(BMSC)共培养探究其生物相容性,通过扫描电镜观察BMSC共培养情况;通过噻唑蓝(MTT)法检测多孔钽金属生物毒性。结果多孔钽金属植入2周后与周围骨组织结合紧密,未见明显炎性反应。小动物成像X光结果显示钽金属孔隙间可见新生骨长入,促进骨缺损再生修复。组织学切片HE染色钽金属四周未见明显炎性反应,金属孔隙间血细胞聚集,促进骨痂形成;翻红O固绿染色可见新生骨长入金属间,多孔钽金属与骨连接紧密,未见免疫排斥反应。MTT检测实验结果显示正常培养组1、3、5 d后的吸光度值与钽金属共培养组比较,差异无统计学意义(0.177±0.010比0.185±0.010、0.434±0.001比0.449±0.002、0.776±0比0.785±0,t=0.303、1.924、1.266,P>0.05),培养7 d后钽金属共培养组细胞增殖高于正常培养组(1.39±0.03比1.23±0.02,t=12.290,P<0.01),差异有统计学意义。扫描电镜结果提示多孔钽金属生物相容性强,BMSC围绕钽金属生长,全包围多孔钽金属,细胞相互交织,生长状况良好。结论多孔钽金属植入大鼠颅骨缺损处促进和引导骨生长和骨修复。

关键词：多孔钽金属颅骨缺损骨髓间充质干细胞

不同触发阈值对肺动脉CTA图像质量影响的研究

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CT理论与应用研究（中英文） 2024年第2期33卷 175-181页

作者：王永胜杨磊清杨怡帆裴青霞王晨思鲁梦云何俊林陈文静田香宝上海市金山区亭林医院放射科上海201505

目的:研究不同触发阈值对肺动脉CTA图像质量的影响。资料与方法:前瞻性纳入上海市金山区亭林医院2021年12月至2023年4月临床怀疑肺动脉栓塞的患者112例作为研究对象,其中男性49例,女性63例,年龄在37~93岁,平均年龄为64.28岁。根据触发... 详细信息

目的:研究不同触发阈值对肺动脉CTA图像质量的影响。资料与方法:前瞻性纳入上海市金山区亭林医院2021年12月至2023年4月临床怀疑肺动脉栓塞的患者112例作为研究对象,其中男性49例,女性63例,年龄在37~93岁,平均年龄为64.28岁。根据触发阈值不同分成3组,将患者分配到A、B、C3组,A组触发阈值为120 HU共38例、B组触发阈值为200 HU共37例、C组触发阈值为250 HU共37例,3组间性别、年龄、身高、体重差异无统计学意义。采用单因素ANOVA检验,比较3组间的上腔静脉、肺动脉主干及左右肺动脉、右肺静脉的CT值以及图像质量主观评分。结果:3组间肺动脉主干及左右肺动脉CT值无统计学差异,上腔静脉、右肺静脉CT值有统计学差异;3组间的图像质量主观评分有统计学差异;两名医师间对所得图像质量主观评价的一致性结果为高度一致,Kappa=0.78。结论:肺动脉CTA触发阈值在200 HU,2 s后启动扫描时,既能保证肺动脉主干CT值的浓度,满足临床诊断,又保证对比剂充分的灌注到5~6级分支,上腔静脉潴留少,肺静脉显影淡,肺动脉CTA的图像质量最佳。

关键词：肺动脉CTA 触发阈值图像质量

Experiment study on micro-structure on different crystallographic planes of mc-Si etched in alkaline solution

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Science China(Technological Sciences) 2012年第6期55卷 1509-1514页

作者： WANG KunXia FENG ShiMeng XU HuaTian TIAN JiaTong yang ShuQuan HUANG JianHua pei Jun Department of Physics Shanghai Jiao Tong UniversityShanghai 200240China Shanghai Academy of Spaceflight Technology Shanghai 200235China Solarfun Power Holdings Solarfun Solar Shanghai Jiao Tong University R&D Center Shanghai 201109China Shanghai Shenzhou New Energy Source Development Co.Ltd Shanghai 20112China

The investigation of multi-crystalline silicon(mc-Si) surface etching technology is a key point in solar cell *** this paper,mc-Si surface was etched in the common alkaline solution modified by an additive for 20 minutes at 78-80°***' surface morphology was observed by scanning electron microscope(SEM).It is firstly found that the etched mc-Si surface has the uniform distribution of trap pits although the morphologies of trap pits are slightly different on different crystallographic ***(100) plane was covered with many small Si-mountain ranges or long V-shape channels arranged in a crisscross ***(110) plane and(111) plane,they were full of a lot of triangle pit-traps(or quadrilateral holes) and twisted earthworm trap pits,*** measured reflectance of the sample was 20.5% at wavelength range of 400-900 *** results illustrate that alkaline solution modified by an additive can effectively etch out trap pits with a good trapping light effect on mc-Si *** method should be very valuable for mc-Si solar cells.

关键词：蚀刻技术碱性溶液晶面微结构扫描电子显微镜太阳能电池 Si表面实验

社会支持在脑卒中患者疾病接受度与生活质量间的中介效应

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护理管理杂志 2024年第1期24卷 32-36页

作者：梅丹赵东旭邢凤梅卢孟倩裴鑫悦华北理工大学护理与康复学院唐山市063210 华北理工大学公共卫生学院唐山市063210

目的探讨社会支持在脑卒中患者疾病接受度与生活质量间的中介效应。方法采用便利抽样法,选取唐山市某三级甲等医院神经内科住院的375例脑卒中患者为研究对象,采用一般资料调查表、疾病接受度量表、社会支持评定量表以及脑卒中专门化生... 详细信息

目的探讨社会支持在脑卒中患者疾病接受度与生活质量间的中介效应。方法采用便利抽样法,选取唐山市某三级甲等医院神经内科住院的375例脑卒中患者为研究对象,采用一般资料调查表、疾病接受度量表、社会支持评定量表以及脑卒中专门化生活质量量表进行问卷调查。结果脑卒中患者疾病接受度得分为(21.70±5.50)分,社会支持得分为(37.13±8.49)分,生活质量得分为(106.83±41.51)分,疾病接受度、社会支持均与生活质量呈两两正相关(P<0.01),社会支持在脑卒中患者疾病接受度与生活质量间具有中介效应,占总效应的23.7%。结论脑卒中患者疾病接受度、社会支持及生活质量均处于中等水平,社会支持在二者之间发挥部分中介效应,提示医护人员应从患者的社会支持资源着手,改善患者的社会支持利用率,进而促进患者接受疾病,改善其生活质量。

关键词：脑卒中生活质量疾病接受度社会支持

Electrospinning fabrication and ultra-wideband electromagnetic wave absorption properties of CeO_(2)/N-doped carbon nanofibers

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Nano Research 2022年第9期15卷 7788-7796页

作者： pei-Yan Zhao Hui-Ya Wang Bo Cai Xiao-Bo Sun Zhi-Ling Hou Jun-Tao Wu Ming Bai Guang-Sheng Wang School of Chemistry Beihang UniversityBeijing 100191China School of Electronics and Information Engineering Beihang UniversityBeijing 100191China College of Mathematics and Physics&Beijing Key Laboratory of Environmentally Harmful Chemical Analysis Beijing University of Chemical TechnologyBeijing 100029China

The impedance mismatch of carbon materials is a key factor limiting their widespread use in electromagnetic(EM)wave *** this work,the novel CeO_(2)/nitrogen-doped carbon(CeO_(2)/N-C)nanofiber was prepared to solve the problem by electrospinning and sintering.X-ray diffraction(XRD),Raman,X-ray photoelectron spectroscopy(XPS),and transmission electron microscopy(TEM)analyses demonstrated CeO_(2)was successfully loaded onto the surface of partially graphitized carbon *** sintering temperatures change the graphitization degree of material,and the oxygen vacancy structure of CeO_(2)and defects from N doping optimize the impedance matching of the *** the sintering temperature reaches 950℃,CeO_(2)/N-C fiber possesses the minimum reflection loss(RLmin)value of−42.59 dB at 2.5 mm with a filler loading of only 3 wt.%in polyvinylidene difluoride(PVDF).Meanwhile,the CeO_(2)/N-C fiber achieves a surprising wideband(8.48 GHz)at a thickness of 2.5 mm,covering the whole Ku-band as well as 63%of the X-band at the sintering temperature of 650℃.This work provides the research basis for widely commercial applications of carbon-based nanofiber absorbers.

关键词： electrospinning electromagnetic wave absorption CeO_(2)/N-doped carbon nanofiber wideband

Biomedical Event Extraction Using a New Error Detection Learning Approach Based on Neural Network

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Computers, Materials & Continua 2020年第5期63卷 923-941页

作者： Xiaolei Ma yang Lu Yinan Lu Zhili pei Jichao Liu College of the Computer Science and Technology Jilin UniversityChangchun130012China College of the Computer Science and Technology Inner Mongolia University for NationalitiesTongliao028000China School of Science and Technology Yanching Institute of TechnologyLangfang065202China

Supervised machine learning approaches are effective in text mining,but their success relies heavily on manually annotated ***,there are limited numbers of annotated biomedical event corpora,and the available datasets contain insufficient examples for training classifiers;the common cure is to seek large amounts of training samples from unlabeled data,but such data sets often contain many mislabeled samples,which will degrade the performance of ***,this study proposes a novel error data detection approach suitable for reducing noise in unlabeled biomedical event ***,we construct the mislabeled dataset through error data analysis with the development *** sample pairs’vector representations are then obtained by the means of sequence patterns and the joint model of convolutional neural network and long short-term memory recurrent neural *** this,the sample identification strategy is proposed,using error detection based on pair representation for unlabeled *** the latter,the selected samples are added to enrich the training dataset and improve the classification *** the BioNLP Shared Task GENIA,the experiments results indicate that the proposed approach is competent in extract the biomedical event from biomedical *** approach can effectively filter some noisy examples and build a satisfactory prediction model.

关键词： Biomedical event extraction pair representation error data detection sample identification