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Left lower lobe sleeve resection for the clear cell variant of pulmonary mucoepidermoid carcinoma:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1422-1429页

作者： Xiao-Hui Yu Wen-Xiang Wang De-Song Yang liang-Hui gong Department of Pathology Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangsha 410031Hunan ProvinceChina The Second Department of Thoracic Surgery Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangsha 410031Hunan ProvinceChina

BACKGROUND Pulmonary mucoepidermoid carcinoma(PMEC)is a rare malignancy that arises from minor salivary glands within the tracheobronchial *** clear cell variant of PMEC is exceptionally uncommon and presents notable diagnostic challenges,primarily attributable to its morphological similarity to other tumors containing clear *** SUMMARY A 22-year-old male,formerly in good health,came in with a two-month duration of persistent cough and production of *** imaging and bronchoscopy examinations revealed a 2 cm tumor in the distal left main bronchus,which resulted in complete atelectasis of the left *** assessment via positron emission tomography/computed tomography scans and endoscopic biopsy confirmed the primary malignant nature of the tumor,charac-terized by clear cell morphology in most of the tumor *** patient underwent a left lower lobe sleeve resection accompanied by systematic mediastinal lymph node *** pathology analysis subsequently revealed a CRTC3-MAML2 gene fusion,leading to a definitive pathological diagnosis of the clear cell variant of PMEC,staged as *** surgery,the patient experienced a smooth recovery and exhibited no signs of recurrence during the one-and-a-half-year follow-up *** This article describes an unusual case of a clear cell variant of PMEC characterized by the presence of a CRTC3-MAML2 gene fusion in a 22-year-old *** patient underwent successful left lower lobe sleeve *** case underscores the distinctive challenges associated with diagnosing and treating this uncommon malignancy,underscoring the importance of precise diagnosis and personalized treatment strategies.

关键词： Pulmonary mucoepidermoid carcinoma Clear cell variant CRTC3-MAML2 gene fusion Sleeve lobectomy Case report

Blasting induced dynamic stress concentration and failure characteristics of deep-buried rock tunnel

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Journal of Central South University 2024年第7期31卷 2321-2340页

作者： ZHAO Rui TAO Ming XIANG gong-liang WANG Shao-feng ZHAO Hua-tao School of Resources and Safety Engineering Central South UniversityChangsha 410083China School of Geoscience and Technology Southwest Petroleum UniversityChengdu 610500China

In this study,the dynamic stress concentration factors(DSCF)around a straight-wall arch tunnel(SWAT)were solved analytically utilizing the complex variable function methods and Duhamel’s *** effects of wavelength,incident angle,and blasting rising time on the DSCF distribution were *** results pointed out dynamic disturbances resulting in compressive stress concentration in the vertical direction and tensile stress in the incident *** the wavelength and rising time increased,there was a tendency for the amplitude of stress concentration to initially rise and then ***,a series of 3D FEM models were established to evaluate the effect of different initial stress states on the dynamic failure of the tunnel surrounding *** results indicated that the failure of the surrounding rock was significantly influenced by the direction of the static maximum principal stress and the direction of the dynamic *** the coupling of static and blasting loading,damage around the tunnel was more prone to occur in the dynamic and static stress concentration coincidence ***,the damage modes of rock tunnel under static stress and blasting disturbance from different directions were summarized and a proposed support system was *** results reveal the mechanisms of deep-buried rock tunnel destruction and dynamically triggered rockburst.

关键词： stress wave scattering dynamic stress analysis rock tunnel dynamic failure analysis

A 12-month follow-up study of discharged patients with acute pancreatitis:An acute condition with prolonged sequela

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Chinese Medical Journal 2024年第2期137卷 250-252页

作者： Hanyue Ding Jiayuan Dai Jiaye Lin liang gong Han Sun Kai Song Feng Xie Dong Wu Department of Gastroenterology Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical ScienceBeijing 100730China School of Population Medicine and Public Health Peking Union Medical College and Chinese Academy of Medical ScienceBeijing 100730China JC School of Public Health and Primary Care Faculty of MedicineThe Chinese University of Hong KongHong Kong Special Administrative RegionChina Emergency Department Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical ScienceBeijing 100730China Department of Health Research Methods Evidence and ImpactMcMaster UniversityHamiltonCanada Centre for Health Economics and Policy Analysis McMaster UniversityHamiltonCanada State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical ScienceBeijing 100730China Clinical Epidemiology Unit International Clinical Epidemiology NetworkBeijing 100730China

To the Editor:Acute pancreatitis(AP)is the most common gastrointestinal condition that leads to acute hospitalization.[1]The incidence of AP has increased in recent decades,with a current global incidence of 34/100,000,probably due to a rising trend of obesity and gallstone *** is associated with remarkable pain,reduced quality of life(QoL),and even death,thus posing a heavy socioeconomic *** addition,approximately 22%of AP patients experience recurrent AP(RAP)and 10%of AP patients progress to chronic pancreatitis.[2]Petrov and Yadav[3]have,therefore,argued that AP should not be considered as an acute and self-limiting *** and long-term care after AP have drawn widespread attention,which has improved patients’physical and mental health.

关键词： patients pancreatitis acute

Phase modulation of nickel-tin alloys in regulating electrocatalytic nitrogen reduction properties

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Rare Metals 2024年第6期43卷 2851-2858页

作者： Lin Wang Hang-Ning Liu Xin Meng Chang-Hui Sun Hai-Dong Liu liang-Yu gong Zhen-Hua Yan Jie Wang College of Chemistry and Pharmaceutical Sciences Qingdao Agricultural UniversityQingdao 266109China Department of Chemistry-Angstrom Laboratory Uppsala University75121UppsalaSweden Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Electrocatalytic nitrogen reduction reaction(NRR)is one of the attractive methods for ammonia(NH_(3))production at ambient conditions,but the catalytic performance largely depends on the physical properties of the ***,Ni-Sn alloy nanoparticles with well-controlled physical properties have been synthesized via a simple two-step method,which are applied as efficient electrocatalysts for the NRR.

关键词： alloys alloy nickel

企业数字化基础技术平台及其体系构建路径研究

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科学与信息化 2024年第9期 181-183页

作者：梁庆功中海油能源物流有限公司中海油集采服务分公司天津 300450

在如今这个数据驱动的时代,企业数字化已经成为企业发展的必经之路.企业数字化不仅可以提高企业的运营效率,同时也是企业创新发展的重要驱动力.然而,要实现企业的数字化,关键就在于建立一套全面的、能够满足企业需求的数字化平台和体系... 详细信息

在如今这个数据驱动的时代,企业数字化已经成为企业发展的必经之路.企业数字化不仅可以提高企业的运营效率,同时也是企业创新发展的重要驱动力.然而,要实现企业的数字化,关键就在于建立一套全面的、能够满足企业需求的数字化平台和体系.这需要从企业的实际情况出发,明确数字化转型的目标,规划出一条科学的、适合企业发展的数字化转型路径.基于此,文章就企业数字化基础技术平台建设展开研究.

关键词：企业数字化基础技术平台体系

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小肠胃黏膜异位的临床特点并文献复习

中华医学杂志 2024年第21期104卷 1998-2002页

作者：范正阳龚亮胡文墨刘炜游燕吴东中国医学科学院北京协和医院消化内科疑难重症及罕见病全国重点实验室北京中国医学科学院北京协和医院放射科疑难重症及罕见病全国重点实验室北京中国医学科学院北京协和医院病理科疑难重症及罕见病全国重点实验室北京

总结小肠胃黏膜异位患者的临床表现, 并通过文献复习比较国内外患者的临床表现差异。回顾性分析北京协和医院自2000年1月至2024年1月确诊为小肠胃黏膜异位的病例的临床特征。通过检索Pubmed、EMBASE、the Cochrane Library、万方、维普... 详细信息

总结小肠胃黏膜异位患者的临床表现, 并通过文献复习比较国内外患者的临床表现差异。回顾性分析北京协和医院自2000年1月至2024年1月确诊为小肠胃黏膜异位的病例的临床特征。通过检索Pubmed、EMBASE、the Cochrane Library、万方、维普、知网等数据库;纳入时间为自数据库建库至2024年1月1日, 对小肠胃黏膜异位进行文献复习。共纳入10例患者, 均为男性, 年龄[M(Q1, Q3)]为27(13～69)岁。病例多以消化道出血为首发表现, 严重者出现失血性休克。腹部CT提示3例患者局部小肠壁增厚及肠腔狭窄。4例病变位于空肠起始段, 6例位于回肠末段。所有病例均接受了局部病变切除术, 术后病理证实为小肠胃黏膜异位。术后所有患者症状均消失, 随访时间为0.5～3.0年。文献复习提示我国小肠胃黏膜异位临床主要表现为消化道出血;而国外患者多合并肠道重复畸形, 并引发肠套叠, 临床多以腹痛、呕吐为首发及主要表现。国内外女性患者肠梗阻发生率均高于男性;国内外患者回肠病变肠梗阻及合并小肠重复畸形的发生率高于空肠病变。局部小肠切除术是有效治疗方式, 多预后良好。小肠胃黏膜异位较为罕见, 消化道出血及肠梗阻症状为常见表现, 可作为不明原因消化道出血的鉴别病因之一。

关键词：胃黏膜消化道出血失血性休克肠梗阻

纤维支气管镜在小儿难治性肺炎诊断与治疗中的价值

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智慧健康 2024年第18期10卷 4-7页

作者：龚亮徐州市儿童医院江苏徐州221000

目的探讨纤维支气管镜诊断在治疗小儿难治性肺炎中的价值。方法选取2022年5月—2023年10月本院收治的80例难治性肺炎患儿纳入分析,分为对照组与观察组,每组40例。对照组采取常规治疗,观察组在对照组的基础上联合纤维支气管镜进行治疗。... 详细信息

目的探讨纤维支气管镜诊断在治疗小儿难治性肺炎中的价值。方法选取2022年5月—2023年10月本院收治的80例难治性肺炎患儿纳入分析,分为对照组与观察组,每组40例。对照组采取常规治疗,观察组在对照组的基础上联合纤维支气管镜进行治疗。对患者各项检测指标、治疗指标及护理指标进行数据收集与对比。结果治疗前,两组各项指标无显著差异(P>0.05),两组BALF检出率无显著差异(P<0.05);治疗后观察组治疗及护理效果均优于对照组(P<0.05)。结论在小儿难治性肺炎的诊断与治疗中,纤维支气管镜可以有效检出病原,且具备明显的临床治疗价值,建议予以推广。

关键词：纤维支气管镜小儿难治性肺炎诊断治疗

基于3D-IC的不完全填充肋片微通道热管理研究

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工程热物理学报 2024年第4期45卷 1097-1105页

作者：黄秉欢米创巩亮朱传勇徐明海中国石油大学(华东)新能源学院青岛266580

本文构建了一种新型不完全填充微通道结构。通过开展数值研究,结果表明:以PEC评价时,Re数为800~1200时不完全填充顺排肋片的微通道综合性能最优;以场协同数Fc评价时,完全填充错排肋片的微通道最优,完全填充错排肋片的微通道不可逆程度... 详细信息

本文构建了一种新型不完全填充微通道结构。通过开展数值研究,结果表明:以PEC评价时,Re数为800~1200时不完全填充顺排肋片的微通道综合性能最优;以场协同数Fc评价时,完全填充错排肋片的微通道最优,完全填充错排肋片的微通道不可逆程度最小。两种评价标准中换热能力和流阻所占权重的不同造成评价结果有所差异。此外,研究了肋片高度对不完全填充顺排肋片微通道流动与传热特性的影响,以PEC评价时Re数为400~600时最优高度为0.325 mm,Re数为800~1200时最优高度为0.225 mm;以Fc评价时所研究的各Re数下肋高为0.45 mm的微通道最优。

关键词：热管理微通道热流密度表面换热系数肋片

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城市轨道交通企业财务表现能力研究

城市轨道交通研究 2024年第2期27卷 157-164页

作者：许得杰潘星巩亮李岩兰州交通大学交通运输学院兰州730070 兰州交通大学高原铁路运输智慧管控铁路行业重点实验室兰州730070

[目的]为了系统性地把握企业财务状况,提升城市轨道交通企业的经营决策能力,需研究城市轨道交通企业的财务表现能力。[方法]从营业总成本、盈利能力、偿债能力、营运能力和成长能力五个方面,统计分析了我国10座城市的轨道交通企业的营... 详细信息

[目的]为了系统性地把握企业财务状况,提升城市轨道交通企业的经营决策能力,需研究城市轨道交通企业的财务表现能力。[方法]从营业总成本、盈利能力、偿债能力、营运能力和成长能力五个方面,统计分析了我国10座城市的轨道交通企业的营业总成本及人工成本、偿债能力比率、盈利能力比率、营运能力比率和成长能力比率,并基于此研究了企业的财务表现能力。[结果及结论]天津地铁存量PPP(公私合营)项目盘活资金超150亿元,减轻了政府债务负担。其他城市的轨道交通企业的营业总成本和人工成本整体呈上升趋势,建议通过PPP模式来减轻政府财务压力,提高成本效率。北京、成都、武汉、青岛、南京的轨道交通企业的长期偿债能力较弱。针对2021年成都、武汉、南京的轨道交通企业的负债程度偏高问题,建议采取光伏发电、地源热泵、共享车辆基地、设备国产化等措施减少企业成本。对于企业盈利偏低问题,建议通过提供运营服务咨询、运营管理服务等方式增加收入。

关键词：城市轨道交通财务表现能力偿债能力盈利能力营运能力成长能力

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