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新生儿急性呼吸窘迫综合征诊断标准的演变及思考

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解放军医学杂志 2024年第3期49卷 245-251页

作者：刘立婷史源重庆医科大学附属儿童医院新生儿科/国家儿童健康与疾病临床医学研究中心/儿童发育疾病研究教育部重点实验室/儿童感染免疫重庆市重点实验室重庆400015

自1967年急性呼吸窘迫综合征(ARDS)首次被报道以来,其诊断及分级标准不断演变。近年来,新生儿ARDS越来越受到关注,然而其研究进展缓慢,部分原因是诊断标准仍存在争议。本文就2012年柏林标准、2017年蒙特勒标准和2023年第二届小儿急性肺... 详细信息

自1967年急性呼吸窘迫综合征(ARDS)首次被报道以来,其诊断及分级标准不断演变。近年来,新生儿ARDS越来越受到关注,然而其研究进展缓慢,部分原因是诊断标准仍存在争议。本文就2012年柏林标准、2017年蒙特勒标准和2023年第二届小儿急性肺损伤共识会议更新的儿童ARDS诊断标准(PAliCC-2标准)在新生儿ARDS中的应用进行概述,比较3种诊断标准的异同,分析3种诊断标准应用于新生儿ARDS时其分级标准、触发因素、发病率、病死率、不良预后和治疗等的差异,并提出未来新生儿ARDS诊断标准的研究方向。

关键词：新生儿急性呼吸窘迫综合征诊断标准变迁

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柱花草SgALMT1基因克隆与表达分析

草地学报 2024年第4期32卷 1078-1086页

作者：缪野刘怀锦刘莉婷罗丽娟陈志坚海南大学热带农林学院海南海口570228 中国热带农业科学院热带作物品种资源研究所/农业农村部华南作物基因资源与种质创制重点实验室海南海口571101 热带作物生物育种全国重点实验室海南三亚572024

为探索铝激活苹果酸转运蛋白(Aluminum-activated malate transporter,ALMT)在植物适应酸性土壤铝毒害中的重要作用,本研究以柱花草(Stylosanthes guianensis)为研究材料,克隆了柱花草SgALMT1基因,并进行了生物信息学、亚细胞定位及基... 详细信息

为探索铝激活苹果酸转运蛋白(Aluminum-activated malate transporter,ALMT)在植物适应酸性土壤铝毒害中的重要作用,本研究以柱花草(Stylosanthes guianensis)为研究材料,克隆了柱花草SgALMT1基因,并进行了生物信息学、亚细胞定位及基因表达分析。结果表明:SgALMT1基因全长为1350 bp,编码450个氨基酸残基,蛋白分子量为50.6 kDa,包含6个跨膜结构域;亚细胞定位分析表明,SgALMT1蛋白定位在拟南芥原生质体细胞膜上,为膜蛋白。定量PCR结果表明,SgALMT1基因在柱花草叶中的表达量高于根中的表达量;铝处理增强了SgALMT1基因在柱花草根中的表达,表明SgALMT1基因可能参与了柱花草应对铝胁迫;另外,缺氮处理增强了SgALMT1基因在柱花草叶中的表达,而缺磷处理增强了SgALMT1在根中的表达。本研究结果为解析柱花草响应铝毒害和养分缺乏的机理提供了候选基因资源。

关键词：柱花草铝毒害基因表达苹果酸亚细胞定位

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内镜黏膜切除术治疗结直肠息肉临床疗效研究

四川生理科学杂志 2024年第5期46卷 1101-1103页

作者：刘婷利王珂河南省职工医院消化内分泌科河南郑州450003

目的:探究内镜黏膜切除术治疗结直肠息肉临床疗效。方法:回顾性收集本院2020年3月-2023年8月期间收治的175例结直肠息肉患者的临床资料。根据手术方案的不同将患者分为对照组(采用热活检钳电凝电切,86例)和观察组(采用内镜黏膜切除术,89... 详细信息

目的:探究内镜黏膜切除术治疗结直肠息肉临床疗效。方法:回顾性收集本院2020年3月-2023年8月期间收治的175例结直肠息肉患者的临床资料。根据手术方案的不同将患者分为对照组(采用热活检钳电凝电切,86例)和观察组(采用内镜黏膜切除术,89例)。分析比较两组的围手术期相关指标、并发症发生率和生活质量[SF-36健康调查简表(Short Form 36 Health Survey,SF-36)]。结果:观察组的手术时间、胃肠功能恢复时间均显著短于对照组,术中出血量显著少于对照组,息肉完全切除率显著高于对照组(P<0.05)。观察组的并发症发生率显著低于对照组(P<0.05)。两组术后1个月、术后6个月SF-36评分比较,两组均上升,且观察组明显高于对照组(P<0.05)。结论:内镜黏膜切除术可提高手术效果,促进术后胃肠功能恢复,较少术后并发症,改善患者生活质量。

关键词：内镜黏膜切除术结直肠息肉临床疗效

高效液相色谱法测定含乳饮料中乙二胺四乙酸二钠含量

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饮料工业 2024年第2期27卷 27-29页

作者：刘李婷边文文陈姗姗李超吴坤陕西省产品质量监督检验研究院农副食品所陕西西安710048

本文研究含乳饮料中乙二胺四乙酸二钠的含量,样品经纯水提取,三氯化铁络合后经高效液相色谱仪测定。结果表明:在0.5μg/mL~50μg/mL曲线范围内,相关系数为r^(2)=1,检出限为5mg/kg,回收率为86%~102%。表明此方法简单可行,灵敏度高,精密度... 详细信息

本文研究含乳饮料中乙二胺四乙酸二钠的含量,样品经纯水提取,三氯化铁络合后经高效液相色谱仪测定。结果表明:在0.5μg/mL~50μg/mL曲线范围内,相关系数为r^(2)=1,检出限为5mg/kg,回收率为86%~102%。表明此方法简单可行,灵敏度高,精密度好,可用于含乳饮料中乙二胺四乙酸二钠的检测。

关键词：乙二胺四乙酸二钠高效液相色谱法含乳饮料

Rapid prediction of damaged ship roll motion responses in beam waves based on stacking algorithm

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Journal of Hydrodynamics 2024年第2期36卷 394-405页

作者： Xin-ran liu ting-qiu li Zi-ping Wang School of Naval Architecture Ocean and Energy Power EngineeringWuhan University of TechnologyWuhan430063China

Accurate modeling for highly non-linear coupling of a damaged ship with liquid sloshing in waves is still of considerable interest within the computational fluid dynamics(CFD)and AI framework.This paper describes a data-driven Stacking algorithm for fast prediction of roll motion response amplitudes in beam waves by constructing a hydrodynamics model of a damaged ship based on the dynamic overlapping grid CFD technology.The general idea is to optimize various parameters varying with four types of classical base models like multi-layer perception,support vector regression,random forest,and hist gradient boosting regression.This offers several attractive properties in terms of accuracy and efficiency by choosing the standard DTMB 5415 model with double damaged compartments for validation.It is clearly demonstrated that the predicted response amplitude operator(RAO)in the regular beam waves agrees well with the experimental data available,which verifies the accuracy of the established damaged ship hydrodynamics model.Given high-quality CFD samples,therefore,implementation of the designed Stacking algorithm with its optimal combination can predict the damaged ship roll motion amplitudes effectively and accurately(e.g.,the coefficient of determination 0.9926,the average absolute error 0.0955 and CPU 3s),by comparison of four types of typical base models and their various forms.Importantly,the established Stacking algorithm provides one potential that can break through problems involving the time-consuming and low efficiency for large-scale lengthy CFD simulations.

关键词： Ship motion damaged ship computational fluid dynamics(CFD) machine learning stacking algorithm

Non-contact and full-field online monitoring of curing temperature during the in-situ heating process based on deep learning

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Advances in Manufacturing 2024年第1期12卷 167-176页

作者： Qiang-Qiang liu Shu-ting liu Ying-Guang li Xu liu Xiao-Zhong Hao College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing210016People’s Republic of China School of Mechanical and Power Engineering Nanjing Tech UniversityNanjing211816People’s Republic of China

Online monitoring of the curing temperature field is essential to improving the quality and efficiency of the manufacturing process of composite parts.Traditional embedded sensor-based technologies have difficulty monitoring the full temperature field or have to introduce heterogeneous items that could have an undesired impact on the part.In this paper,a non-contact,full-field monitoring method based on deep learning that predicts the internal temperature field of composite parts in real time using surface temperature measurements of auxiliary materials is proposed.Using the proposed method,an average temperature monitoring accuracy of 97%is achieved in various heating patterns.In addition,this method also demonstrates satisfying feasibility when a stronger thermal barrier covers the part.This method was experimentally validated during the self-resistance electric heating process,in which the monitoring accuracy reached 93.1%.This method can potentially be applied to automated manufacturing and process control in the composites industry.

关键词： Online monitoring Curing temperature field Deep learning(DL) In-situ heating

Observation and verification of surface electrical explosion driven by radial-distributed pulsed current in laboratory lightning strike test

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High Voltage 2024年第1期9卷 137-149页

作者： Ruoyu Han Yuchen Cao Yakun liu Xi Chen ting li Chen li Pengfei li State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijingChina School of Mechatronical Engineering Beijing Institute of TechnologyBeijingChina Department of Electrical Engineering Shanghai Jiaotong UniversityShanghaiChina Beijing Institute of Astronautical System Engineering BeijingChina Aerospace Research Institute of Materials and Processing Technology BeijingChina

The laboratory lightning test is essential for assessing the effectiveness of lightning strike protection(LSP).Particularly,direct lightning strike damage can be performed with pulsed current injection into the specimen.This paper focuses on the dynamic process of arc plasma and shock wave behaviour in the vicinity of the‘strike’point.A rod-plate discharge load is built for testing aluminium and coated plate under 40-kA-level pulsed current.The visualisation of the luminous discharge plasma and its flow field via high-speed photography(from different angles)is meticulously designed and implemented,synchronised with electro-physical diagnostics.The results indicate some new mechanisms for lightning strike damage,apart from the impulse heat loading from the thermal arc.The transient current injection through the arc root concentrates on a thin skin layer(skin-depth effect),with the radial-attenuated current density,driving asynchronously electrical explosions on the plate surface.The inhomogeneous Joule heating of the plate leads to outwardly propagating phase transition and shock wave along the conductive surface.In addition,the electro-thermal instability is observed and regarded as the seed of irregular erosion region.Spectroscopic information reveals two different plasma states of main discharge arc channel and adjacent surface electrical explosion.The correspondence of the physical mechanism of electrical explosion and optical radiation is established.Microscopic images for different regions depict erosion characteristics and summarise influencing factors,further confirming the mechanism above.The research clarifies the role of skin-depth effect in transaction arc erosion for electrode,complements the electrical explosion theory with unevenly distributed current and helps optimise strategies of LSP.

关键词： electrical lightning radial

Experts’Consensus on the Management of Respiratory Disease Syndemic

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China CDC weekly 2024年第8期6卷 131-138页

作者： Weizhong Yang Zhongjie li ting Yang Yanming li Zhengde Xie Luzhao Feng Zhibin Peng Jue liu School of Population Medicine and Public Health Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina State Key Laboratory of Respiratory Health and Multimorbidity BeijingChina Key Laboratory of Pathogen Infection Prevention and Control Peking Union Medical CollegeMinistry of EducationBeijingChina National Center for Respiratory Diseases State Key Laboratory of Respiratory Health and MultimorbidityNational Clinical Research Center for Respiratory DiseasesInstitute of Respiratory MedicineChinese Academy of Medical SciencesDepartment of Pulmonary and Critical Care MedicineCenter of Respiratory MedicineChina-Japan Friendship HospitalBeijingChina Department of Pulmonary and Critical Care Medicine National Center of GerontologyBeijing HospitalInstitute of Geriatric MedicineChinese Academy of Medical SciencesBeijingChina Beijing Key Laboratory of Pediatric Respiratory Infection Diseases Key Laboratory of Major Diseases in ChildrenMinistry of EducationNational Clinical Research Center for Respiratory DiseasesResearch Unit of Critical Infection in ChildrenChinese Academy of Medical Sciences2019RU016National Key Discipline of Pediatrics(Capital Medical University)Beijing Pediatric Research InstituteBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijingChina Chinese Center for Disease Control and Prevention BeijingChina Department of Epidemiology and Biostatistics School of PublicHealthKey Laboratory of Epidemiology of Major DiseasesMinistry of EducationPeking University Health Science Center-Weifang Joint Research Center for Maternal and Child HealthPeking UniversityBeijingChina

The global burden of respiratory diseases is a significant and increasing threat to individuals worldwide.In 2017,there were 544.9 million cases of chronic respiratory diseases,a 39.8%increase since 1990(1).These diseases were the third leading cause of global mortality in 2017,accounting for 7.0%of all deaths,an 18.0%increase compared to 1990.

关键词： diseases respiratory mortality

Geochemistry, zircon U–Pb geochronology, and Hf isotopes of S-type granite in the Baoshan block, constraints on the age and evolution of the Proto-Tethys

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Acta Geochimica 2024年第1期43卷 40-58页

作者： Jianjun Zhang Chuanlong Mou Chendong liu Yong Zhang ting Chen Hualiang li Institute of Geological Survey East China University of TechnologyNanchang 330013China School of Earth Sciences East China University of TechnologyNanchang 330013China Chengdu Geological Survey Center Chengdu 610081China School of Water Resources&Environmental Engineering East China University of TechnologyNanchang 330013China

Geochemistry, zircon U–Pb geochronology, and Hf isotope data for the Early Paleozoic granites in the Baoshan Block reveal the Early Paleozoic tectonic evolution of the Proto-Tethys. The samples are high-K, calcalkaline, strongly peraluminous rocks with A/CNK values of 1.37–1.46, are enriched in SiO2, K2O, and Rb, and are depleted in Nb, P, Ti, Eu, and heavy rare earth elements,which indicates the crystallization fractionation of the granitic magma. Zircon U–Pb dating indicates that they formed in ca. 480 Ma. The Nansa granites have εHf(t) values ranging from-16.04 to 4.36 with corresponding TC DMages of 2.10–0.81 Ga, which suggests the magmas derived from the partial melting of ancient metasedimentary with minor involvement of mantle-derived components. A synthesis of data for the Early Paleozoic igneous rocks in the Baoshan block and adjacent(Tengchong,Qiangtang, Sibumasu, Himalaya, etc.) blocks indicates that these blocks were all aligned along the proto-Tethyan margin of East Gondwana in the Early Paleozoic. The Early Paleozoic S-type granites from Nansa were generated in a high-temperature and low-pressure(HTLP) extensional tectonic setting, which resulted from Andean-type orogeny instead of the final assembly of Gondwana or crustal extension in a non-arc environment. In certain places, an expanding environment may exist in opposition to the tectonic backdrop of the lithosphere’s thickening and shortening, leading the crust to melt and decompress,mantle-derived materials to mix, and a small quantity of peraluminous granite to emerge.

关键词： Baoshan block Early Paleozoic Granite Geochemistry Zircon Geochronology Hf isotope