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新时代我国儿科医学教育面临的机遇与挑战

中华医学教育探索杂志 2024年第3期23卷 289-293页

作者：赖登明金静宜俞爽叶璟舒强浙江大学医学院附属儿童医院儿外科国家儿童健康与疾病临床医学研究中心杭州310052

我国的医学教育在全球医学教育改革的大潮中经历了诸多变革。在新时代"健康中国"建设的背景下,对构建高质量儿童医疗卫生服务体系的需求日益凸显,同时也对儿科医生提出了更高的要求。本文旨在深入剖析当前我国儿科教育所面临的机遇与挑... 详细信息

我国的医学教育在全球医学教育改革的大潮中经历了诸多变革。在新时代"健康中国"建设的背景下,对构建高质量儿童医疗卫生服务体系的需求日益凸显,同时也对儿科医生提出了更高的要求。本文旨在深入剖析当前我国儿科教育所面临的机遇与挑战,总结应对策略,并展望未来儿科医学人才培养的新模式。随着出生人口的快速变化、多学科协作的加强、医学信息化的发展及科研水平的不断提高,儿科医学教育正面临前所未有的机遇。然而,儿科发展起步晚、拔尖人才缺乏等问题也给儿科医学教育带来了巨大的挑战。因此,通过多学科交叉合作、创新教育教学模式等方式,培养具备创新能力和实践经验的儿科医师科学家已成为未来的发展方向。

关键词：新时代儿科医学教育机遇挑战

Emergent symmetry in quantum phase transition:From deconfined quantum critical point to gapless quantum spin liquid

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Science Bulletin 2024年第2期69卷 190-196页

作者： Wen-Yuan Liu Shou-shu Gong Wei-qiang Chen Zheng-Cheng Gu Department of Physics The Chinese University of Hong KongHong KongChina Division of Chemistry and Chemical Engineering California Institute of TechnologyPasadena CA 91125USA School of Physical Sciences Great Bay UniversityDongguan 523000China Great Bay Institute for Advanced Study Dongguan 523000China Department of Physics and Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices Southern University of Science and TechnologyShenzhen 518055China

The emergence of exotic quantum phenomena in frustrated magnets is rapidly driving the development of quantum many-body physics,raising fundamental questions on the nature of quantum phase transitions.Here we unveil the behaviour of emergent symmetry involving two extraordinarily representative phenomena,i.e.,the deconfined quantum critical point(DQCP)and the quantum spin liquid(QSL)state.Via large-scale tensor network simulations,we study a spatially anisotropic spin-1/2 square-lattice frustrated antiferromagnetic(AFM)model,namely the J1x-J1y-J2 model,which contains anisotropic nearestneighbor couplings J1x,J1y and the next nearest neighbor coupling J2.For small J1y/J1x,by tuning J2,a direct continuous transition between the AFM and valence bond solid phase is observed.With growing J1y/J1x,a gapless QSL phase gradually emerges between the AFM and VBS phases.We observe an emergent O(4)symmetry along the AFM–VBS transition line,which is consistent with the prediction of DQCP theory.Most surprisingly,we find that such an emergent O(4)symmetry holds for the whole QSL–VBS transition line as well.These findings reveal the intrinsic relationship between the QSL and DQCP from categorical symmetry point of view,and strongly constrain the quantum field theory description of the QSL phase.The phase diagram and critical exponents presented in this paper are of direct relevance to future experiments on frustrated magnets and cold atom systems.

关键词： Tensor network Quantum phase transition Emergent symmetry Quantum spin liquid Deconfined quantum critical point Anisotropic

A Semiparametric Additive-multiplicative Rates Model for the Weighted Composite Endpoint of Recurrent and Terminal Events

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Acta Mathematica Sinica,English Series 2024年第4期40卷 985-999页

作者： Yi DENG qiang XIONG shu Wei LI School of Economics and Statistics Guangzhou UniversityGuangzhou 510006P.R.China

Recurrent event data are commonly encountered in many scientific fields,including biomedical studies,clinical trials and epidemiological surveys,and many statistical methods have been proposed for their analysis.In this paper,we consider to use a weighted composite endpoint of recurrent and terminal events,which is weighted by the severity of each event,to assess the overall effects of covariates on the two types of events.A flexible additive-multiplicative model incorporating both multiplicative and additive effects on the rate function is proposed to analyze such weighted composite event process,and more importantly,the dependence structure among the recurrent and terminal events is left unspecified.For the estimation,we construct the unbiased estimating equations by virtue of the inverse probability weighting technique,and the resulting estimators are shown to be consistent and asymptotically normal under some mild regularity conditions.We evaluate the finite-sample performance of the proposed method via simulation studies and apply the proposed method to a set of real data arising from a bladder cancer study.

关键词： Additive-multiplicative rates model estimating equation recurrent events terminal event weighted composite endpoint

Recommendation about the perioperative prevention of infection to healthcare workers and the anesthesia management of children with SARS-CoV-2 infection

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World Journal of Pediatric Surgery 2020年第1期3卷 53-56页

作者： Jinjin Huang Yaoqin Hu Jiangmei Wang Dongpi Wang Zhirui Zhu Zhiyong Hu Ziying Jin Hongfei Lin Wenfang Huang Weiqing Shen Yilei Jiang Miaofeng Hu Jingzhen Wu Yaojun Suo qiang shu Department of Anesthesiology Children’s HospitalZhejiang University School of MedicineHangzhouChina National Clinical Research Center for Child Health HangzhouChina National Children’s Regional Medical Center HangzhouChina

Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has spread widely and persistently over 100 countries.New challenges have occurred in the perioperative management of airway and anesthesia in children diagnosed with SARS-CoV-2 infection.According to current publications and to our own experiences in anesthesia management for cases with SARS-CoV-2 suspected,we reviewed concerns about the perioperative prevention of SARS-CoV-2 to medical staff and the anesthesia strategy to the patient.

关键词： anesthesia prevention acute

Recovery of rare earth elements from permanent magnet scraps by pyrometallurgical process

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Rare Metals 2022年第5期41卷 1697-1702页

作者： Yu-Yang Bian shu-qiang Guo Yu-Ling Xu Kai Tang Xiong-Gang Lu Wei-Zhong Ding Shanghai Key Laboratory of Modern Metallurgy and Materials Processing Shanghai UniversityShanghai 200072China SINTEF Materials and Chemistry 7465 TrondheimNorway

In order to recover valuable rare earth elements from Nd-Fe-B permanent magnet scraps, a high-temperature pyrometallurgical process was developed in this work. The magnet scraps were first pulverized and oxidized at 1000℃ in normal atmosphere. The oxidized mixtures were then selectively reduced by carbon in the temperature range of 1400-1550℃. In this way, the rare earth elements were extracted to the form of oxides, whereas Fe and B were separated to metal phase. For improving the purity of rare earth oxides, the effects of temperature and reaction time on the reduction of B_(2)O_(3) in oxide phase were investigated. It is found that increasing reaction temperature and extending reaction time will help the reduction of B_(2)O_(3) contents in rare earth oxide phase. Almost all rare earth elements can be enriched in the oxide phase with the highest purity of 95 %.

关键词： Rare earth Permanent magnet Recycling

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

具有APF功能的分布式光伏并网及其改进控制

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电力电子技术 2024年第5期58卷 59-63页

作者：杨书强范文奕赵阳郝志方国网河北省电力有限公司经济技术研究院河北石家庄050000 天津大学电气自动化与信息工程学院天津300072

提出一种基于改进型比例谐振(PR)控制器的兼顾有源电力滤波器(APF)功能的分布式光伏并网系统控制策略,在静止坐标系下对基波逆变电流以及需要补偿的各次谐波电流进行无静差跟踪,在将光伏系统的电能注入电网的同时改善电网电能质量。对... 详细信息

提出一种基于改进型比例谐振(PR)控制器的兼顾有源电力滤波器(APF)功能的分布式光伏并网系统控制策略,在静止坐标系下对基波逆变电流以及需要补偿的各次谐波电流进行无静差跟踪,在将光伏系统的电能注入电网的同时改善电网电能质量。对比分析了PR控制器与改进的PR控制器特性,根据改进PR控制器各参数对性能指标的影响,对改进的PR控制器进行参数设计。仿真和实验结果表明所提的改进PR控制器可以使电流环控制器更好地跟踪指令电流,对电网频率波动具有较好的适应性,验证了所采用的控制策略的可行性和有效性。

关键词：有源电力滤波器比例谐振无静差跟踪

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质量管理体系在计量检定机构应用效果分析

中国标准化 2024年第6期 156-158页

作者：王书强杨建平井凤燕武城县计量检定测试所德州市行政审批服务保障中心德州市产品质量标准计量研究院

本文介绍了计量检定机构的质量管理体系,对其在计量检定工作中发挥的作用进行了分析,质量管理体系的应用提高了检定机构检测精度、服务质量和管理水平,效果明显。同时也指出了质量管理体系应用过程中存在的问题,如文件管理不规范、人员... 详细信息

本文介绍了计量检定机构的质量管理体系,对其在计量检定工作中发挥的作用进行了分析,质量管理体系的应用提高了检定机构检测精度、服务质量和管理水平,效果明显。同时也指出了质量管理体系应用过程中存在的问题,如文件管理不规范、人员管理不严谨和质量监督不到位,提出了优化措施,进一步完善了质量管理体系,促进了计量检定工作质量的提高。

关键词：质量管理体系计量检定机构效果分析

Expert Consensus on Nutritional Support for Children with Congenital Heart Disease(2023 Edition)

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Congenital Heart Disease 2023年第6期18卷 571-593页

作者： Xuming Mo Wei Cai Jirong Qi Zhuoming Xu Ying Wang Weihui Yan Shoujun Li Nianguo Dong Xinxin Chen Jinfen Liu qiang shu Jimei Chen Haibo Zhang Hao Zhang Quansheng Xing Qi An Xiaofeng Li Xu Wang Yan He Junwu Su Taibing Fan Teng Ming Weibing Tang Li Hong Jinghao Zheng Ming Ye Guocheng Sun Yiqun Ding Liang Tao Yifeng Yang Zhongshi Wu Hua Cao qiang Wang Keming Yang Libing Zhang Ping Wen Yanqin Cui Bo Zhai Yong Zou Qingya Tang Rui Chen Chun Wu Zhiyu Feng Caixia Liu Yaping Mi Rufang Zhang Ke Lin Xin Li Mingan Pi Xiangming Fan Shanshan Shi Peng Huang Zhengxia Pan Jiafeng Qi Renwei Chen shuguang Tao Yaqin shu Huifeng Zhang Lan Jiang Min Da Nishant Patel Liang Hu Cardiac Surgery Group of Pediatric Surgery Society of Chinese Medical Association and Parenteral Enteral Nutrition Society of Chinese Medical Association Department of Cardiothoracic Surgery Children’s Hospital of Nanjing Medical UniversityNanjing210008China Department of Pediatric Surgery and Nutrition Xinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200092China Department of Cardiothoracic Surgery Shanghai Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China Division of Pediatric Gastroenterology and Nutrition Xinhua HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200092China Pediatric Cardiac Surgery Center Fuwai HospitalNational Centre for Cardiovascular DiseasesState Key Laboratory of Cardiovascular DiseaseChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100037China Department of Cardiovascular Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China Cardiovascular Center Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangzhou510623China Department of Cardiac Surgery Children’s HospitalZhejiang University School of MedicineNational Clinical Research Center for Child HealthHangzhou310052China Department of Cardiovascular Surgery Guangdong Cardiovascular InstituteGuangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesSouthern Medical UniversityGuangzhou519041China Heart Center and Shanghai Institue of Pediatric Congenital Heart Disease Shanghai Children’s Medical CenterNational Children’s Medical CenterSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China Heart Center Qingdao Women and Children’s HospitalQingdao266034China Department of Cardiovascular Surgery West China HospitalSichuan UniversityChengdu610041China Department of Cardiac Surgery Beijing Children’s HospitalCapital Medical UniversityNational Center for Children’s HealthBeijing100045China Department of Pediatric Intensive Care Unit Fuwai HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijing100037China Depar

The second edition of the expert consensus on pediatric nutrition was formed based on a global update of pedia-tric nutrition guidelines or consensus worldwide,the management of congenital heart disease,and the results of multi-center clinical nutrition research for congenital heart disease following theﬁrst Chinese consensus edition of 2016.The consensus was also shaped by the results of three discussion sessions and two questionnaires con-ducted by the 13-member collaboration group.This process was informed by both clinical guidelines and expert consensus.The quality of literature,both in English and Chinese,and the level of recommendations were evaluated using the Grading of Recommendations Assessment,Development,and Evaluations(GRADE)system.

关键词： Congenital heart disease nutrition enteral parenteral expert consensus