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合并患侧腋窝癌结节乳腺癌患者的临床病理特征及预后影响因素

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中华肿瘤杂志 2024年第2期46卷 146-154页

作者：肖晶晶黄美玲延常姣凌瑞魏洪亮空军军医大学西京医院甲状腺乳腺血管外科西安710032

目的探讨合并患侧腋窝癌结节乳腺癌患者的临床病理特点及预后影响因素。方法分析2008年1月至2018年9月在西京医院甲状腺乳腺血管外科初次确诊乳腺癌且合并患侧腋窝癌结节的155例乳腺癌患者的临床及随访资料, 采用Kaplan-Meier法进行生... 详细信息

目的探讨合并患侧腋窝癌结节乳腺癌患者的临床病理特点及预后影响因素。方法分析2008年1月至2018年9月在西京医院甲状腺乳腺血管外科初次确诊乳腺癌且合并患侧腋窝癌结节的155例乳腺癌患者的临床及随访资料, 采用Kaplan-Meier法进行生存分析, 预后影响因素的单因素分析采用Log rank检验, 多因素分析采用Cox回归分析。结果 155例患者患者的中位无病生存时间(DFS)为52.0个月, 中位无远处转移生存时间(DMFS)为66.6个月, 中位总生存时间(OS)为102.2个月。5年和10年无复发转移生存率分别为45.7%和23.1%, 5年和10年无远处转移生存率分别为56.9%和28.9%, 5年和10年总生存率分别为79.3%和46.0%。多因素Cox回归分析显示, 家族肿瘤病史(HR=0.362, 95%CI:0.140~0.937)、临床T分期(T3期:HR=3.508, 95%CI:1.380~8.918;T4期:HR=2.220, 95%CI:1.076~4.580)、雌/孕激素受体状态(HR=0.476, 95%CI:0.261~0.866)、癌结节数量(HR=1.965, 95%CI:1.104~3.500)以及是否新辅助化疗(HR=1.961, 95%CI:1.032~3.725)是患者DFS的独立影响因素, 分子分型[表皮生长因子受体2(HER-2)阳性激素受体阴性:HR=7.862, 95%CI:3.189~19.379]、癌结节数量(HR=2.155, 95%CI:1.103~4.212)、是否新辅助化疗(HR=5.002, 95%CI:2.300~10.880)以及放疗(HR=2.316, 95%CI:1.005~5.341)是患者DMFS的独立影响因素, 组织学分级(HR=4.362, 95%CI:1.932~9.849)、雌/孕激素受体表达(HR=0.399, 95%CI:0.168~0.945)、HER-2表达(HR=2.535, 95%CI:1.114~5.768)以及是否新辅助化疗(HR=4.080, 95%CI:1.679~9.913)是患者OS的独立影响因素。结论癌结节的存在削弱了腋窝淋巴结状态和是否有远处转移对乳腺癌患者预后的影响, 应制定将癌结节考虑在内的乳腺癌临床病理分期系统。癌结节数量影响乳腺癌患者的复发转移风险, 建议在乳腺癌术后病理报告中详细报告检出的癌结节数量。

关键词：乳腺肿瘤癌结节临床特征预后

溃结汤联合美沙拉嗪肠溶片治疗脾肾阳虚型溃疡性结肠炎临床观察

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光明中医 2024年第4期39卷 757-760页

作者：杨殿斌魏洪亮山东中医药大学第一临床医学院山东济南250100 菏泽市中医医院肛肠科山东菏泽274000

目的观察溃结汤联合美沙拉嗪肠溶片治疗脾肾阳虚型溃疡性结肠炎临床效果。方法将菏泽市中医医院2022年1月—2023年1月收治的82例溃疡性结肠炎患者,以随机数字表法分为对照组和观察组,各41例。对照组给予美沙拉嗪肠溶片进行治疗,观察组... 详细信息

目的观察溃结汤联合美沙拉嗪肠溶片治疗脾肾阳虚型溃疡性结肠炎临床效果。方法将菏泽市中医医院2022年1月—2023年1月收治的82例溃疡性结肠炎患者,以随机数字表法分为对照组和观察组,各41例。对照组给予美沙拉嗪肠溶片进行治疗,观察组给予溃结汤联合美沙拉嗪肠溶片治疗。观察2组患者治疗前后中医症状积分(TCMPS)变化、肝细胞生长因子(HGF)和细胞间质上皮转换因子(c-MET)的变化。结果观察组总有效率高于对照组;观察组的中医症状积分相比对照组下降更为明显;观察组HGF与c-MET的阳性率比对照组增加更为明显,均P<0.05。结论溃结汤联合美沙拉嗪肠溶片治疗脾肾阳虚型溃疡性结肠炎的临床疗效好。

关键词：痢疾溃疡性结肠炎脾肾阳虚证溃结汤肝细胞生长因子细胞间质上皮转换因子

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建筑工程施工阶段碳排放计算方法适用性分析

绿色建筑 2024年第2期16卷 125-128页

作者：胡海涛王建平魏宏亮甘肃省建筑科学研究院(集团)有限公司甘肃兰州730070 甘肃建投科技研发有限公司甘肃兰州730070

立足建筑工程节能减碳工作,分析识别建筑施工过程中的碳排放来源,列举并对比分析了目前应用较多的国际碳排放计算标准和5种建筑碳排放计算方法—实测法、投入产出法、物料均衡法、排放系数法、生命周期法。详细介绍了各计算方法的计算... 详细信息

立足建筑工程节能减碳工作,分析识别建筑施工过程中的碳排放来源,列举并对比分析了目前应用较多的国际碳排放计算标准和5种建筑碳排放计算方法—实测法、投入产出法、物料均衡法、排放系数法、生命周期法。详细介绍了各计算方法的计算原理、适用范围、计算流程等内容,结合各计算方法的优缺点,给出各自的适用要求,为建筑行业在碳排放计算方面的工作提供参考。

关键词：建筑碳排放碳排放源碳排放计算

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中国铁路长大货物车发展历程和方向

轨道交通装备与技术 2024年第2期32卷 19-22页

作者：闫海军魏鸿亮李志刚中车齐齐哈尔车辆有限公司大连研发中心辽宁大连116052

文章叙述了中国铁路长大货物车从仿制到自主研发的发展历程,介绍了各个阶段的代表车型,并详细阐述了各个阶段所用材料、计算分析、仿真分析及制图手段等发展特点,实现了技术的全面自主化,形成了完整的产品研发和制造能力。提出了未来长... 详细信息

文章叙述了中国铁路长大货物车从仿制到自主研发的发展历程,介绍了各个阶段的代表车型,并详细阐述了各个阶段所用材料、计算分析、仿真分析及制图手段等发展特点,实现了技术的全面自主化,形成了完整的产品研发和制造能力。提出了未来长大货物车将向新颖化、模块化、精益化、型谱化、智能化的方向发展,促进长大货物车的技术进步;并建议吸取相关行业的成功经验,引进先进的装备,研发制造出性能先进、适用的系列长大货物车,努力推进中国铁路的技术进步和运输能力的提高,以支持国家重点工程建设。

关键词：长大货物车升级换代模块化智能化

Numerical simulation on the multiphase flow and reoxidation of the molten steel in a two-strand tundish during ladle change

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1540-1553页

作者： Jingcheng Wang Zhentong Liu wei Chen hongliang Chen Lifeng Zhang School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China

A 3D mathematical model was proposed to investigate the molten steel–slag–air multiphase flow in a two-strand slab continuous casting(CC)tundish during ladle change.The study focused on the exposure of the molten steel and the subsequent reoxidation occurrence.The exposure of the molten steel was calculated using the coupled realizable k–εmodel and volume of fluid(VOF)model.The diffusion of dissolved oxygen was determined by solving the user-defined scalar(UDS)equation.Moreover,the user-defined function(UDF)was used to describe the source term in the UDS equation and determine the oxidation rate and oxidation position.The effect of the refilling speed on the molten steel exposure and dissolved oxygen content was also discussed.Increasing the refilling speed during ladle change reduced the refilling time and the exposure duration of the molten steel.However,the elevated refilling speed enlarged the slag eyes and increased the average dissolved oxygen content within the tundish,thereby exacerbating the reoxidation phenomenon.In addition,the time required for the molten steel with a high dissolved oxygen content to exit the tundish varied with the refilling speed.When the inlet speed was 3.0 m·s^(-1)during ladle change,the molten steel with a high dissolved oxygen content exited the outlet in a short period,reaching a maximum dissolved oxygen content of 0.000525wt%.Conversely,when the inlet speed was 1.8 m·s^(-1),the maximum dissolved oxygen content was 0.000382wt%.The refilling speed during the ladle change process must be appropriately decreased to minimize reoxidation effects and enhance the steel product quality.

关键词： tundish ladle change reoxidation multiphase flow numerical simulation

Numerical simulation on gas-solid flow during circulating fluidized roasting of bauxite by a computational particle fluid dynamics method

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Particuology 2024年第7期90卷 179-188页

作者： Chengming Xie Rongbin Li Qijin wei Fengqin Liu hongliang Zhao Yongmin Zhang Hong Yong Sohn State Key Laboratory of Green and Low-carbon Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China BGRIMM Technology Group Beijing 100160China State Key Laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Department of Materials Science and Engineering The University of UtahSalt Lake CityUT 84112USA

A full-cycle numerical simulation of a circulating fluidized bed(CFB)by the use of the computational particle fluid dynamics(CPFD)method has been developed.The effects of the presence or absence of the secondary air,different secondary air positions,and different secondary air ratios on the gas–solid flow characteristics were explored.The results show that the presence of the secondary air makes a core-annular structure of the velocity distribution of particles in the fluidized bed,which enhances the uniformity of particles’distribution and the stability of fluidization.The position and the ratio of the secondary air have a significant impact on the particle distribution,particle flow rate,and gas flow rate in the fluidized bed.When the secondary air position and ratio are optimal,the particles,particle flow rate,and air flow rate in the CFB are evenly distributed,the gas–solid flow state is good,and the CFB can operate stably.

关键词： Circulating fluidized bed CPFD method Secondary air position Secondary air ratio Gas–solid flow characteristics

Prevalence of Vitamin A Deficiency in Children Aged 6 to 17 Years—Western and Central Rural Areas,China,2012–2021

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China CDC weekly 2024年第3期6卷 51-55页

作者： Peipei Xu Juan Xu wei Cao Titi Yang Qian Gan hongliang Wang Ruihe Luo Hui Pan Qian Zhang National Institute for Nutrition and Health Chinese Center for Disease Control and PreventionBeijingChina

What is already known about this topic?Vitamin A deficiency(VAD)is a leading global nutritional concern,ranking among the top four major nutritional deficiencies worldwide.The prevalence of VAD is unevenly distributed across various regions,both within China and globally.What is added by this report?The report adds valuable insights into the vitamin A nutritional status of rural students aged 6–17 years who participated in the Nutrition Improvement Programme for Rural Compulsory Education Students(NIPRCES).Over the decade from 2012 to 2021,there was a modest improvement in vitamin A status.The prevalence of VAD and sub-clinical VAD(SVAD)declined as the students aged.Throughout the majority of the survey years,the incidence of VAD was higher among males and western regions compared to females and central regions,respectively.What are the implications for public health practice?A comprehensive approach,incorporating dietary diversification,nutrition education,and food fortification,should be implemented to prevent VAD and SVAD especially in males,younger children and children in western areas.

关键词： vitamin Rural younger

Moderate Fields, Maximum Potential: Achieving High Records with Temperature‑Stable Energy Storage in Lead‑Free BNT‑Based Ceramics

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Nano-Micro Letters 2024年第5期16卷 184-200页

作者： Wenjing Shi Leiyang Zhang Ruiyi Jing Yunyao Huang Fukang Chen Vladimir Shur Xiaoyong wei Gang Liu hongliang Du Li Jin Electronic Materials Research Laboratory Key Laboratory of the Ministry of EducationSchool of Electronic Science and EngineeringXi’an Jiaotong UniversityXi’an 710049People’s Republic of China School of Materials and Energy Southwest UniversityChongqing 400715People’s Republic of China School of Natural Sciences and Mathematics Ural Federal UniversityEkaterinburg 620000Russia Multifunctional Electronic Ceramics Laboratory College of EngineeringXi’an International UniversityXi’an 710077People’s Republic of China

The increasing awareness of environmental concerns has prompted a surge in the exploration of leadfree,high-power ceramic capacitors.Ongoing efforts to develop leadfree dielectric ceramics with exceptional energystorage performance(ESP)have predominantly relied on multicomponent composite strategies,often accomplished under ultrahigh electric fields.However,this approach poses challenges in insulation and system downsizing due to the necessary working voltage under such conditions.Despite extensive study,bulk ceramics of(Bi_(0.5)Na_(0.5))TiO_(3)(BNT),a prominent lead-free dielectric ceramic family,have seldom achieved a recoverable energy-storage(ES)density(Wrec)exceeding 7 J cm^(−3).This study introduces a novel approach to attain ceramic capacitors with high ESP under moderate electric fields by regulating permittivity based on a linear dielectric model,enhancing insulation quality,and engineering domain structures through chemical formula optimization.The incorporation of SrTiO_(3)(ST)into the BNT matrix is revealed to reduce the dielectric constant,while the addition of Bi(Mg_(2/3)Nb_(1/3))O_(3)(BMN)aids in maintaining polarization.Additionally,the study elucidates the methodology to achieve high ESP at moderate electric fields ranging from 300 to 500 kV cm^(−1).In our optimized composition,0.5(Bi_(0.5)Na_(0.4)K_(0.1))TiO_(3)–0.5(2/3ST-1/3BMN)(B-0.5SB)ceramics,we achieved a Wrec of 7.19 J cm^(−3) with an efficiency of 93.8%at 460 kV cm^(−1).Impressively,the B-0.5SB ceramics exhibit remarkable thermal stability between 30 and 140℃ under 365 kV cm^(−1),maintaining a Wrec exceeding 5 J cm^(−3).This study not only establishes the B-0.5SB ceramics as promising candidates for ES materials but also demonstrates the feasibility of optimizing ESP by modifying the dielectric constant under specific electric field conditions.Simultaneously,it provides valuable insights for the future design of ceramic capacitors with high ESP under constraints of limited electric field.

关键词： BNT Energy storage Lead-free Relaxor ferroelectrics Capacitors

Andrias davidianus bone peptides alleviates hyperuricemia-induced kidney damage in vitro and in vivo

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Food Science and Human Wellness 2024年第4期13卷 1886-1905页

作者： wei Li Haihong Chen hongliang Chen Ziyin Li wei Hu Qinxuan Zhou Bing Xu Yi Wang Xinhui Xing Institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate SchoolShenzhen 518055China Institute of Biomedical Health Technology and Engineering Shenzhen Bay LaboratoryShenzhen 440300China Key Laboratory for Industrial Biocatalysis Ministry of EducationInstitute of Biochemical EngineeringDepartment of Chemical EngineeringBeijing 100084China Center for Synthetic and Systems Biology Tsinghua UniversityBeijing 100084China Affiliated Dongguan Hospital Southern Medical University(Dongguan People’s Hospital)Dongguan 523059China

Hyperuricemia(HUA)is a vital risk factor for chronic kidney diseases(CKD)and development of functional foods capable of protecting CKD is of importance.This paper aimed to explore the amelioration effects and mechanism of Andrias davidianus bone peptides(ADBP)on HUA-induced kidney damage.In the present study,we generated the standard ADBP which contained high hydrophobic amino acid and low molecular peptide contents.In vitro results found that ADBP protected uric acid(UA)-induced HK-2 cells from damage by modulating urate transporters and antioxidant defense.In vivo results indicated that ADBP effectively ameliorated renal injury in HUA-induced CKD mice,evidenced by a remarkable decrease in serum UA,creatinine and blood urea nitrogen,improving kidney UA excretion,antioxidant defense and histological kidney deterioration.Metabolomic analysis highlighted 14 metabolites that could be selected as potential biomarkers and attributed to the amelioration effects of ADBP on CKD mice kidney dysfunction.Intriguingly,ADBP restored the gut microbiome homeostasis in CKD mice,especially with respect to the elevated helpful microbial abundance,and the decreased harmful bacterial abundance.This study demonstrated that ADBP displayed great nephroprotective effects,and has great promise as a food or functional food ingredient for the prevention and treatment of HUA-induced CKD.

关键词： Andrias davidianus bone peptides Hyperuricemia Uric acid Chronic kidney disease Gut microbiota