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Gastrointestinal manifestations of critical ill heatstroke patients and their associations with outcomes:A multicentre,retrospective,observational study

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World Journal of Gastroenterology 2024年第4期30卷 346-366页

作者： Yu-Cong Wang Xin-Yang Jin zheng Lei Xiao-Jiao Liu Yu Liu Bang-guo Zhang Jian Gong Lie-Tao Wang Lv-Yuan Shi ding-Yuan Wan Xin Fu lu-Ping Wang Ai-Jia Ma Yi-Song Cheng Jing Yang Min He Xiao-Dong Jin Yan Kang Bo Wang Zhong-Wei Zhang Qin Wu Department of Critical Care Medicine West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina School of Pharmacy Macao University of Science and TechnologyMacao 999078China Department of Critical Care Medicine The First People's Hospital of Ziyang CityZiyang 641399Sichuan ProvinceChina Department of Critical Care Medicine The First People's Hospital of Guanghan CityChengdu 618399Sichuan ProvinceChina Department of Critical Care Medicine Lezhi County Traditional Chinese Medicine HospitalChengdu 641599Sichuan ProvinceChina Department of Critical Care Medicine Chengdu Qingbaijiang District People's HospitalChengdu 610399Sichuan ProvinceChina Department of Critical Care Medicine Ziyang People's HospitalChengdu 641399Sichuan ProvinceChina

BACKGROUND Extreme heat exposure is a growing health problem,and the effects of heat on the gastrointestinal(GI)tract is *** study aimed to assess the incidence of GI symptoms associated with heatstroke and its impact on *** To assess the incidence of GI symptoms associated with heatstroke and its impact on *** Patients admitted to the intensive care unit(ICU)due to heatstroke were included from 83 *** history,laboratory results,and clinically relevant outcomes were recorded at ICU admission and daily until up to day 15,ICU discharge,or *** symptoms,including nausea/vomiting,diarrhoea,flatulence,and bloody stools,were *** characteristics of patients with heatstroke concomitant with GI symptoms were *** regression analyses were performed to determine significant predictors of GI *** A total of 713 patients were included in the final analysis,of whom 132(18.5%)patients had at least one GI symptom during their ICU stay,while 26(3.6%)suffered from more than one *** with GI symptoms had a significantly higher ICU stay compared with those *** mortality of patients who had two or more GI symptoms simultaneously was significantly higher than that in those with one GI *** logistic regression analysis revealed that older patients with a lower GCS score on admission were more likely to experience GI *** The GI manifestations of heatstroke are common and appear to impact clinically relevant hospitalization outcomes.

关键词： Extreme heat Flatulence Sunstroke Intensive care units Diarrhea

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Effect of In doping on the evolution of microstructure,magnetic properties and corrosion resistance of NdFeB magnets

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Chinese Physics B 2024年第3期33卷 623-629页

作者：李豫豪范晓东贾智范璐丁广飞刘新才郭帅郑波曹帅陈仁杰闫阿儒 School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China CISRI & NIMTE Joint Innovation Center for Rare Earth Permanent Magnets Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China University of Chinese Academy of Sciences Beijing 100049China

The grain boundary phase affects the magnetic properties and corrosion resistance of sintered NdFeB *** this work,a small amount of In was added to NdFeB magnets by induction melting to systematically investigate its effect on the evolution of the microstructure,magnetic properties and corrosion resistance of NdFeB *** analysis illustrated that minor In addition generated more grain boundary phases and an abundant amorphous phase at the triple-junction grain *** the addition of In failed to enhance the magnetic isolation effect between adjacent matrix grains,its incorporation fortuitously elevated the electrochemical potential of the In-containing ***,during corrosion,an In-rich precipitate phase formed,hindering the ingress of the corrosive medium into the ***,this significantly bolstered the corrosion resistance of the sintered NdFeB *** phase formation,magnetic properties and corrosion resistance of In-doped NdFeB magnets are detailed in this work,which provides new prospects for the preparation of high-performance sintered NdFeB magnets.

关键词： In-doping NdFeB magnets magnetic properties corrosion resistance

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Performance and Optimization of Air Source Heat Pump Water Heater with Cyclic Heating

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Journal of Shanghai Jiaotong university(Science) 2024年第2期29卷 179-187页

作者：李凡陆高锋丁云霄郑春元李斌翟晓强 College of Mechanical and Power Engineering Shanghai Jiao Tong UniversityShanghai 200240China Guangdong Midea HVAC Equipment Co. Ltd.Foshan 528311GuangdongChina

A new type of microchannel condenser applied in the air source heat pump water heater(ASHPWH)with cyclic heating was proposed in this *** operating performance of the ASHPWH was frst ***,the structure of the microchannel condenser was optimized with the implement of vortex ***,a numerical model of the ASHPWH was established and the optimized microchannel condenser was *** experimental results showed that the average coefficient of performance(COP)of the 1HP(735 W)ASHPWH reached *** addition,the optimized microchannel condenser could be matched with a 3 HP(2430W)ASHPWH with an average heating capacity of 10.30 kW,and achieving an average COP of 4.24,14.6%higher than the limit value in the national standard.

关键词： air source heat pump water heater(ASHPWH) cyclic heating microchannel condenser

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Real-world effectiveness of early insulin therapy on the incidence of cardiovascular events in newly diagnosed type 2 diabetes

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Signal Transduction and Targeted Therapy 2024年第7期9卷 2953-2959页

作者： Sihui luo Xueying zheng Wei Bao Sheng nie Yu ding Tong Yue Yilun Zhou Ying Hu Hua Li Qiongqiong Yang Qijun Wan Bicheng Liu Hong Xu Guisen Li Gang Xu Chunbo Chen Huafeng Liu Yongjun Shi Yan Zha Yaozhong Kong guobin Su Ying Tang Mengchun Gong Linong Ji Fan Fan Hou Jianping Weng Department of Endocrinology First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHeifeiChina Institute of Public Health Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiChina Division of Nephrology National Clinical Research Center for Kidney DiseaseState Key Laboratory of Organ Failure ResearchNanfang HospitalSouthern Medical UniversityGuangzhouChina Department of Nephrology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina The Second Affiliated Hospital of Zhejiang University School of Medicine HangzhouChina Sir Run Run Shaw Hospital Zhejiang University School of MedicineHangzhouChina Department of Nephrology Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhouChina The Second People’s Hospital of Shenzhen Shenzhen UniversityShenzhenChina Institute of Nephrology Zhongda HospitalSoutheast University School of MedicineNanjingChina Children’s Hospital of Fudan University ShanghaiChina Renal Department and Institute of Nephrology Sichuan Provincial People’s HospitalSchool of MedicineUniversity of Electronic Science and Technology of ChinaSichuan Clinical Research Center for Kidney DiseasesChengduChina Division of Nephrology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Critical Care Medicine Maoming People’s HospitalMaomingChina Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City Institute of NephrologyAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina Huizhou Central People’s Hospital Sun Yat-Sen UniversityHuizhouChina Guizhou Provincial People’s Hospital Guizhou UniversityGuiyangChina Department of Nephrology the First People’s Hospital of FoshanFoshanChina Department of Nephrology Guangdong Provincial Hospital of Chinese Medicinethe Second Affiliated Hospitalthe Second Clinical CollegeGuangzhou University of Chinese Medicin

Early insulin therapy is capable to achieve glycemic control and restoreβ-cell function in newly diagnosed type 2 diabetes(T2D),but its effect on cardiovascular outcomes in these patients remains *** this nationwide real-world study,we analyzed electronic health record data from 19 medical centers across China between 1 January 2000,and 26 May *** included 5424 eligible patients(mean age 56 years,2176 women/3248 men)who were diagnosed T2D within six months and did not have prior cardiovascular *** Cox regression models were used to estimate the associations of early insulin therapy(defined as the first-line therapy for at least two weeks in newly diagnosed T2D patients)with the incidence of major cardiovascular events including coronary heart disease(CHD),stroke,and hospitalization for heart failure(HF).During 17,158 persons years of observation,we documented 834 incident CHD cases,719 stroke cases,and 230 hospitalized cases for *** diagnosed T2D patients who received early insulin therapy,compared with those who did not receive such treatment,had 31%lower risk of incident stroke,and 28%lower risk of hospitalization for *** significant difference in the risk of CHD was *** found similar results when repeating the aforesaid analysis in a propensity-score matched population of 4578 patients and with inverse probability of treatment weighting *** findings suggest that early insulin therapy in newly diagnosed T2D may have cardiovascular benefits by reducing the risk of incident stroke and hospitalization for HF.

关键词： cardiovascular treatment nationwide

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一种具有类牙釉质多级结构的高强高韧羟基磷灰石基纤维

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Science China Materials 2024年第8期67卷 2496-2504页

作者：丁宝森刘少佳卢俊峰郭一然郑天赵赫威郭林 School of Chemistry Beihang UniversityBeijing 100191China

牙釉质是人体最硬的组织,力学性能优异.牙釉质内部的纳米线-微米簇-有序阵列的多级结构是其具有优异力学性能的关键.通过模仿牙釉质的微结构有望实现人造材料力学性能的突破,但是多级次模仿天然牙釉质的微结构仍是巨大的挑战.本文中,我... 详细信息

牙釉质是人体最硬的组织,力学性能优异.牙釉质内部的纳米线-微米簇-有序阵列的多级结构是其具有优异力学性能的关键.通过模仿牙釉质的微结构有望实现人造材料力学性能的突破,但是多级次模仿天然牙釉质的微结构仍是巨大的挑战.本文中,我们制备了由长程有序晶体/非晶羟基磷灰石(HAP)纳米线组成的HAP微米簇,并通过剪切诱导组装将其纺成类牙釉质高性能宏观纤维.该纤维具有高度有序的纳米线-微米簇结构,并且HAP纳米线、HAP微米簇和聚合物基体之间的强界面连接使得该纤维在受力时具有一种多级的能量耗散途径.因此该类牙釉质纤维兼具高强度(196.3 MPa)和高韧性(46.3 MJ m^(-3)),其断裂韧性超过了先前报道的HAP基复合纤维的最大值.这种多级类牙釉质设计策略为高强度和高韧性纤维的开发提供了新的思路,在潜在的工程和生物修复领域具有广阔的应用前景.

关键词：牙釉质羟基磷灰石长程有序高强高韧聚合物基体界面连接多级结构能量耗散

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不同类型小于胎龄儿早期追赶生长比较及相关影响因素

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中国儿童保健杂志 2024年第6期32卷 613-618,642页

作者：王秀英郑小琴邹林利丁玲范玲聂晶四川省妇幼保健院成都医学院附属妇女儿童医院儿童保健科四川成都610091

目的比较不同类型小于胎龄(SGA)儿生后至2岁追赶生长情况并对相关因素进行分析,以期为SGA儿的规范化管理提供参考依据。方法采用回顾性研究,选取2018年1月-2021年7月在四川省妇幼保健院儿童保健科进行健康体检的SGA儿为研究对象,根据其... 详细信息

目的比较不同类型小于胎龄(SGA)儿生后至2岁追赶生长情况并对相关因素进行分析,以期为SGA儿的规范化管理提供参考依据。方法采用回顾性研究,选取2018年1月-2021年7月在四川省妇幼保健院儿童保健科进行健康体检的SGA儿为研究对象,根据其出生时身高及体重评定将其分为SGA-1(出生时仅身长低于同性别同胎龄儿P_(10))、SGA-2(出生时仅体重低于同性别同胎龄儿P_(10))、SGA-3(出生时身长和体重均低于同性别同胎龄儿P_(10))三组,利用WHO Anthro软件、SPSS 27.0对三种不同类型SGA儿在不同月龄的追赶情况进行统计描述及差异性比较,并对影响追赶结局的产前、产时及新生儿期相关因素进行回归分析。结果1)不同组别SGA儿各月龄追赶比率不同,SGA-1组身长追赶在(24±1)月龄人数占比最多(66.4%),SGA-2组体重追赶在(12±1)月龄占比最高(78.7%),SGA-3组身长追赶在(24±1)月龄占比达最大(66.9%),体重追赶在(3±1)月龄达最大(77.4%);各月龄身长追赶发生的比率低于体重追赶,差异有统计学意义(P0.05),同一组别SGA体重指标分别达P_(10)、P_(25)、P_(50)的比率在(6±1)月龄、(12±1)月龄、(18±1)月龄、(24±1)月龄之间差异无统计学意义(P>0.05),SGA-3组无论是身长指标还是体重指标在各月龄达到P_(10)的比率均低于SGA-1组,差异有统计学意义(P0.05);3)分娩方式、系统管理以及母亲孕期肝内胆汁淤积影响SGA身长追赶结局(P<0.05)。结论不同类型SGA发生追赶的比率及高峰时期不同,体重追赶较身长追赶发生的时间更早,其发生追赶的比率也高于身长追赶,但身长追赶持续的时间更长,追赶效果更加理想。出生时身长、体重均未达到P_(10)百分位的SGA生后追赶相对受限。自然分娩和系统管理是影响SGA儿童早期追赶生长的积极因素,母亲孕期肝内胆汁淤积是SGA儿童追赶生长的不利因素,重视不同类型SGA早期追赶生长特点及影响因素对后期SGA的管理及干预具有重要意义。

关键词：小于胎龄儿追赶生长生长模式

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设施园艺移动平台分布式驱动自适应防滑控制

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农业工程学报 2024年第10期40卷 85-96页

作者：陈凤丁俊杰罗志涛郑恩来鲁应涛汪小旵沈成鲁植雄南京农业大学工学院南京210031 农业农村部南京农业机械化研究所南京210014

针对设施园艺特殊作业场景对电驱移动平台灵活作业与高操纵稳定性需求,该研究设计了一种四轮轮毂电机独立驱动的分布式设施园艺电驱移动平台,并提出了一种可提高转向灵活性与稳定性的自适应防滑控制策略。在该控制策略中,首先构建电驱... 详细信息

针对设施园艺特殊作业场景对电驱移动平台灵活作业与高操纵稳定性需求,该研究设计了一种四轮轮毂电机独立驱动的分布式设施园艺电驱移动平台,并提出了一种可提高转向灵活性与稳定性的自适应防滑控制策略。在该控制策略中,首先构建电驱移动平台动力学模型与Ackermann差速转向模型,结合速度瞬心原理及轮胎侧偏角确定各车轮转向目标转速;其次,为提高电驱移动平台对时变附着系数的适应能力,采用改进的强跟踪自适应无迹卡尔曼滤波算法设计复杂路面识别器,实现对路面附着系数准确估计;最后,设计基于自适应滑模算法的防滑控制器,根据路面附着系数估计值确定车轮相对最佳滑转率并实时控制滑转率。为验证所提控制策略的有效性,开展了Carsim-MATLAB/Simulink联合仿真与分布式设施园艺电驱移动平台实车试验。试验结果表明,所提控制策略可准确估计复杂道路下路面附着系数,降低车轮滑转率误差;在不变路面、对接路面与对开路面3种工况下,左侧车轮滑转率误差分别为0.031、0.015和0.038,右侧车轮滑转率误差分别为0.026、0.005和0.028;在不变路面与随机路面实测路况下,电驱移动平台路面附着系分别数约为0.44和0.47,最大滑转率分别约为0.69和0.68,有效抑制了轮胎转向时的过度滑转,提高了电驱移动平台的行驶稳定性。研究可为设施园艺车辆驱动防滑控制提供具体理论依据和实施方案。

关键词：农业机械试验设施园艺轮毂电机电驱移动平台差速转向防滑控制

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Cu对含Ce高强高效无取向硅钢磁性能的影响

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材料导报 2024年第6期38卷 172-178页

作者：李娜丁西安王永强陆勤阳郑成思安徽工业大学冶金工程学院安徽马鞍山243002 安徽工业大学先进金属材料绿色制备与表面技术教育部重点实验室安徽马鞍山243002 安徽工业大学材料科学与工程学院安徽马鞍山243002

无取向硅钢作为新能源汽车电机系统的核心部件材料,要求其磁性能和力学性能同时优异,但两者往往不能兼顾。如何获得强度和磁性能的良好匹配是高性能无取向硅钢需要解决的关键问题之一。对此,本工作通过Cu、Ce合金化研制了高强高效无取... 详细信息

无取向硅钢作为新能源汽车电机系统的核心部件材料,要求其磁性能和力学性能同时优异,但两者往往不能兼顾。如何获得强度和磁性能的良好匹配是高性能无取向硅钢需要解决的关键问题之一。对此,本工作通过Cu、Ce合金化研制了高强高效无取向硅钢样品,但是,目前Cu在硅钢中的作用尤其是对磁性能的影响机理尚不十分明确。因此,本工作采用光学显微镜、扫描电镜、背散射电子衍射和透射电镜等方法研究了Cu对含Ce高强高效无取向硅钢磁性能的影响及机理。结果表明,适量Cu的添加在显著提高强度的情况下同时降低高频铁损,较多Cu的添加使磁感降低、铁损升高。这主要是因为,适量的Cu以富Cu相析出,具有尺寸小、分布分散等特点,一方面促使再结晶的发生,提高晶粒均匀性,并且高温再结晶退火过程中Cu以固溶形式存在不会明显阻碍晶粒长大,对磁性能有利;另一方面促使有利织构的产生,抑制不利织构出现,提高磁感,从而在一定程度上抵消富Cu析出相阻碍磁畴转动对磁性能的不利影响。Cu含量较高时,富Cu析出相不仅尺寸较大,而且形态呈长条状或短棒状,恶化了磁性能。

关键词： Cu 高强高效无取向硅钢组织织构磁性能

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FOXP4基因杂合变异导致矮小和发育迟缓综合征1例

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中华儿科杂志 2024年第6期62卷 571-573页

作者：丁书雅张秋雯郭涤凡冯斌郑宏陆相朋河南中医药大学第一附属医院儿科医院、河南中医药大学儿科医学院郑州450000

患儿男,8岁4月龄,因“发现身高落后同龄儿5年余”就诊于河南中医药大学第一附属医院儿科医院,主要表现为言语延迟、身材矮小、行走姿势异常、脊柱侧弯和运动发育迟缓,生长激素激发试验示生长激素峰值>10μg/L,影像学检查示脑垂体顶部膨... 详细信息

患儿男,8岁4月龄,因“发现身高落后同龄儿5年余”就诊于河南中医药大学第一附属医院儿科医院,主要表现为言语延迟、身材矮小、行走姿势异常、脊柱侧弯和运动发育迟缓,生长激素激发试验示生长激素峰值>10μg/L,影像学检查示脑垂体顶部膨隆,基因检测结果显示患儿有新发的FOXP4基因杂合性致病变异NM_001012426:c.1618G>A,P.E540K,与已报道的4个FOXP4错义变异均位于叉头DNA结合域上。FOXP4基因杂合变异与以言语延迟和生长发育障碍等临床表型有关。

关键词：身材矮小脊柱侧弯儿科医院运动发育迟缓影像学检查临床表型生长发育障碍基因检测

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The Electronic Structure and Formation Energies of Ni-doped CuAlO2 by Density Functional Theory Calculation

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Chinese Physics Letters 2014年第3期31卷 118-121页

作者： XU Ying LI Fei SHENG Wei nie guo-zheng YUAN ding-Wang School of Physics Hunan University of Science and Technology Xiangtan 411202 Department of Education Science Hunan First Normal University Changsha 410205 College of Materials Science and Engineering Hunan University Changsha 410082

The electronic structure and formation energies of Ni-doped CuAlO2 are calculated by first-principles calculations. Our results show that Ni is good for p-type doping in CuAlO2. When Ni is doped into CuAlO2, it prefers to substitute Al-site. NiAl is a shallow acceptor, while NiCu is a deep acceptor and its formation energy is high. Further electronic structure calculations show that strong hybridization happens between Ni-3d and O-2p states for Ni substituting Al-site, while localized Ni-3d states are found for Ni substituting Cu-site.

关键词： SEMICONDUCTOR doping RESEARCH DENSITY functional theory FERMI energy ELECTRONIC structure -- Research PHYSICS research

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