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An Analysis on Failure Reasons of Quit Smoking among Smokers in Beijing Communities——Based on a Cross-Sectional Study

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Biomedical and Environmental Sciences 2022年第1期35卷 84-88页

作者： JIN Qian Ying li xing ming liU Han MA Han Qiao QIAO Kun Ali Akbar School of Public Health Capital Medical UniversityBeijing 100069China

With the implementation of tobacco control policies and increasing publicity year by year,smokers have acquired more information and knowledge through various channels about the harmful effects of smoking.As a result,... 详细信息

关键词： smoke desire harmful

中小学校医与保健教师近视防控核心胜任力评价量表的构建研究

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中国健康教育 2024年第5期40卷 401-406,419页

作者：王尧秦廷廷谷明宇杨宇彤过君君李星明首都医科大学公共卫生学院北京100069

目的构建中小学校医与保健教师近视防控核心胜任力评价量表,为评价校医与保健教师开展校园近视防控工作水平提供工具。方法通过文献分析与半结构化访谈,提取校医与保健教师近视防控核心胜任力评价框架与指标条目。邀请到14名专家,通过... 详细信息

目的构建中小学校医与保健教师近视防控核心胜任力评价量表,为评价校医与保健教师开展校园近视防控工作水平提供工具。方法通过文献分析与半结构化访谈,提取校医与保健教师近视防控核心胜任力评价框架与指标条目。邀请到14名专家,通过德尔菲咨询与层次分析法确定各级指标内容与相应权重,构建中小学校医与保健教师近视防控核心胜任力评价量表。结果经过两轮专家咨询,确定一级指标4个,二级指标8个,三级指标28个。一级指标按权重依次为视力健康服务能力(0.296)、个人职业品质(0.278)、近视防控专业知识与技能(0.233)、组织管理能力(0.193)。专家积极性、权威性与意见协调程度与一致性较好。结论本研究通过德尔菲法与层次分析法初步构建了中小学校医与保健教师近视防控核心胜任力评价量表,具有一定的科学性和可靠性,可为中小学校医与保健教师近视防控核心胜任力评价提供参考。

关键词：近视防控学校卫生校医与保健教师核心胜任力德尔菲

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聚多巴胺抗紫外特性及其应用

应用化工 2024年第3期53卷 650-654页

作者：倪天颖岳朝阳慈璐雨李明星陈山广西大学轻工与食品工程学院广西南宁530004 广西大学化学化工学院广西南宁530004

从化学结构、物理特性和生物保护方面阐述聚多巴胺(PDA)的抗紫外机制,总结了基于多巴胺自聚合制备纳米颗粒、贻贝胶囊、表面涂层的方法,将PDA抗紫外基材的应用场景按抗紫外膜、涂层、凝胶以及防晒制剂分类归纳,为进一步探究PDA抗紫外机... 详细信息

从化学结构、物理特性和生物保护方面阐述聚多巴胺(PDA)的抗紫外机制,总结了基于多巴胺自聚合制备纳米颗粒、贻贝胶囊、表面涂层的方法,将PDA抗紫外基材的应用场景按抗紫外膜、涂层、凝胶以及防晒制剂分类归纳,为进一步探究PDA抗紫外机理、扩展PDA复合材料应用提供参考。

关键词：聚多巴胺抗紫外天然黑色素光保护合成黑色素

基于PMC指数模型的我国国家层面医疗机构健康教育政策分析

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中国健康教育 2024年第3期40卷 205-211页

作者：秦廷廷谷明宇王尧乔昆白欣苑杨宇彤李星明首都医科大学公共卫生学院北京100069

目的对我国国家层面的医疗机构健康教育政策进行量化分析,为该领域相关政策的制定和完善提供依据。方法以2000—2022年国家层面发布的医疗机构健康教育政策为研究对象,使用文本挖掘的方法遴选出高频词,并绘制高频词社会网络图谱,基于... 详细信息

目的对我国国家层面的医疗机构健康教育政策进行量化分析,为该领域相关政策的制定和完善提供依据。方法以2000—2022年国家层面发布的医疗机构健康教育政策为研究对象,使用文本挖掘的方法遴选出高频词,并绘制高频词社会网络图谱,基于此及已有文献构建PMC指数模型,对健康教育政策进行质量评价。结果本研究以47份政策为研究对象,分析了其发布时间趋势,并生成了高频词社会网络图谱。之后,研究构建了包含9个一级变量和32个二级变量的健康教育政策评价体系,以此计算11项典型政策的PMC指数并进行政策评级。11份医疗机构健康教育政策的PMC指数均值为5.42,各项政策的质量等级均在及格及以上水平。从各一级变量的平均得分来看,作用方式(0.82)、政策评价(0.77)、政策性质(0.76)等变量的平均值较高。结论总体而言,医疗机构健康教育政策制定的依据充分、目标明确,兼具预测、建议等多个性质,且稳定性较好,但仍存在改进空间。未来须从明确健康教育绩效考核标准和建立激励约束机制、明晰权责划分等方面进行完善。

关键词：医疗机构健康教育政策评价 PMC指数模型

高质量发展背景下成渝地区双城经济圈旅游业竞争力时空特征演变研究

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湖南师范大学自然科学学报 2024年第2期47卷 71-79页

作者：时朋飞徐艳清龙荟冰田子业李星明西南大学经济管理学院重庆400715 湖南大学经济与贸易学院长沙410079 华中师范大学城市与环境科学学院中国武汉430079

本文基于高质量发展背景,从竞争和合作两个维度构建了城市旅游业竞争力模型,以成渝地区双城经济圈作为研究区域,借助线性加权法、社会网络分析法剖析了该地区城市旅游业竞争力的时空演化特征。研究表明:(1)成渝地区城市旅游业竞争力呈... 详细信息

本文基于高质量发展背景,从竞争和合作两个维度构建了城市旅游业竞争力模型,以成渝地区双城经济圈作为研究区域,借助线性加权法、社会网络分析法剖析了该地区城市旅游业竞争力的时空演化特征。研究表明:(1)成渝地区城市旅游业竞争力呈明显分层特征,成渝两地长期位居前两个层次,而其他城市出现低水平俱乐部趋同,同时位序变化不明显,且中间呈现序位缺失态势;(2)城市旅游业竞争力受内部和外部竞争力的共同影响,内部竞争力起着关键作用,外部竞争力具有调节作用;(3)成渝地区城市旅游业竞争力在空间上呈现以成都和重庆为双核心的蛛网结构,成都与重庆扮演着“发动机”的角色,同时整体空间网络逐渐趋于复杂、稳定。(4)成渝地区城市旅游业竞争力核心区范围扩大,核心区城市旅游业发展的空间溢出效应大于边缘区城市,同时边缘区城市的内外部联系均较为松散。上述结论在该地区城市旅游吸引指数时空演化特征分析中再次得到证实。基于上述结论,本文提出培育与打造旅游业发展增长极提升旅游业全要素效率、完善多维度合作与交通体系等举措,以促进成渝地区双城经济圈城市旅游业竞争力水平向高阶跃迁。

关键词：高质量发展旅游业竞争力时空特征成渝地区双城经济圈

Sepsis one-hour bundle management combined with psychological intervention on negative emotion and sleep quality in patients with sepsis

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World Journal of Psychiatry 2024年第2期14卷 266-275页

作者： ming Xia Guang-Yan Dong Shi-Chao Zhu Huan-Min xing li-ming li Department of Intensive Care Unit Henan Provincial Key Medicine Laboratory of NursingHenan Provincial People’s HospitalZhengzhou University People’s HospitalZhengzhou 450003Henan ProvinceChina Department of Nursing Henan Provincial Key Medicine Laboratory of NursingHenan Provincial People’s HospitalZhengzhou University People’s HospitalZhengzhou 450003Henan ProvinceChina

BACKGROUND Sepsis is a serious infectious disease caused by various systemic inflammatory responses and is ultimately life-threatening.Patients usually experience depression and anxiety,which affect their sleep quality and post-traumatic growth levels.AIM To investigate the effects of sepsis,a one-hour bundle(H1B)management was combined with psychological intervention in patients with sepsis.METHODS This retrospective analysis included 300 patients with sepsis who were admitted to Henan Provincial People’s Hospital between June 2022 and June 2023.According to different intervention methods,the participants were divided into a simple group(SG,n=150)and combined group(CG,n=150).H1B management was used in the SG and H1B management combined with psychological intervention was used in the CG.The changes of negative emotion,sleep quality and post-traumatic growth and prognosis were compared between the two groups before(T0)and after(T1)intervention.RESULTS After intervention(T1),the scores of the Hamilton Anxiety scale and Hamilton Depression scale in the CG were significantly lower than those in the SG(Plity,sleep efficiency,daytime dysfunction,sleep disturbance dimension score,and the total score in the CG were significantly lower than those in the SG(Plife,mental changes,relationship with others,personal strength dimension score,and total score of the CG were significantly higher than those of the SG(Plity of the CG were significantly lower than those of the SG(Plity of sleep and life.

关键词： Cluster management Psychological intervention Sepsis Negative emotions Sleep quality Post-traumatic growth

Laser Wire Additive Manufacturing of Ti-6Al-4V Alloy and Its Machine Learning Study for Parameters Optimization(Invited)

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中国激光 2024年第4期51卷 182-198页

作者： Wu Junyi Zhang Bo Wang Weihua li Weipeng Yao Xiyu Wang Dawei xing Wei Yan ming Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055GuangdongChina Songshan Lake Materials Laboratory Dongguan 523830GuangdongChina Institute of Physics Chinese Academy of SciencesBeijing 100190China Jiaxing Research Institute Southern University of Science and TechnologyShenzhen 518055GuangdongChina High Performance Computing Department National Supercomputing CenterShenzhen 518055GuangdongChina

Ti-6Al-4V is a benchmark Ti alloy. Laser wire additive manufacturing(LWAM) offers advanced manufacturing capability to the alloy for applications possibly including exploration of outer space. As a typical multiple-variable process, LWAM is complex, which, however, can be analyzed, predicated or even optimized by artificial intelligence(AI) methods such as machine learning(ML). In this study, printing parameters of the Ti-6Al-4V is firstly optimized using single-track-single-layer experiments, and then single-track-multiple-layer samples are printed, whose properties in terms of hardness and compressive strength are analyzed subsequently by both experiments and ML. The two ML approaches, artificial neural network(ANN) and support vector machine(SVM), are employed to predict the experimental results, whose coefficients of determination R2 show good values. Further optimized properties are realized by adopting genetic algorithm(GA) and simulated annealing(SA) approaches, which contribute to high mechanical properties achieved, for instance, an engineering compressive strength of about 1694 MPa. The results here indicate that important mechanical properties of the LWAM-prepared Ti alloys can be well predicted and enhanced using suitable ML approaches.

关键词： artificial printing additive

Distribution of oxide inclusions in H13 castings under super-gravity field with multi-stage rotation speeds

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Journal of Iron and Steel Research(International) 2024年第1期31卷 121-133页

作者： Shao-ying li Xiao-jun Xi xing-ming Zhao Han-jie Guo Jing Guo School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials Beijing100083China Beijing Beiye Functional Materials Corporation Beijing100192China Shandong Tianwu Forming Technology Co. Ltd.Liaocheng252024ShandongChina

The 42 kg industrial H13 castings were prepared by different super-gravity fields with multi-rotation speeds,and the distribution of oxide inclusions in the castings was studied.In addition,the inward movement Reynolds number and inward movement time of oxide inclusions as well as the solidification time of molten steel at different positions in the castings were calculated to clarify the removal mechanism of oxide inclusions in super-gravity field.The results show that the large size(i.e.,greater than 10μm)oxide inclusions are mainly concentrated in the inner and outer parts of the super-gravity castings with constant rotation speed(500 r min^(-1))and five-stage rotation speeds(500,600,750,850,and 950 r min^(-1)),respectively,while there are no large oxide inclusions in the super-gravity castings with three-stage rotation speeds(500,600,and 750 r min^(-1)).Although an increase in the particle size of inclusion and the rotation speed in super-gravity field is conducive to the increase in the inward movement Reynolds number of oxide inclusions and reduction in the inward movement time of oxide inclusions,it will reduce the local solidification time of molten steel.In the range of the rotation speed studied,the super-gravity field with three-stage rotation speeds has the best effect on the removal of inclusions in H13 molten steel.

关键词： Distribution Oxide inclusion H13 casting Super-gravity field Rotation speed

The Orthogonal Bases of Exponential Functions Based on Moran-Sierpinski Measures

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1804-1824页

作者： Qi Rong DENG xing Gang HE ming Tian li Yuan ling YE School of Mathematics and Statistics Center for Applied Mathematics of Fujian Province&Key Laboratory of Analytical Mathematics and Applications(Ministry of Education)Fujian Normal UniversityFuzhou350117P.R.China School of Mathematics and Statistics Key Lab NAA-MOE and Hubei Key Lab-Math.Sci.Central China Normal UniversityWuhan430079P.R.China School of Mathematical Sciences&South China Research Center for Applied Mathematics and Interdisciplinary Studies South China Normal UniversityGuangzhou510631P.R.China

Let An∈M2(ℤ)be integral matrices such that the infinite convolution of Dirac measures with equal weightsμ{A_(n),n≥1}δA_(1)^(-1)D*δA_(1)^(-1)A_(2)^(-2)D*…is a probability measure with compact support,where D={(0,0)^(t),(1,0)^(t),(0,1)^(t)}is the Sierpinski digit.We prove that there exists a setΛ⊂ℝ2 such that the family{e2πi〈λ,x〉:λ∈Λ}is an orthonormal basis of L^(2)(μ{A_(n),n≥1})if and only if 1/3(1,-1)A_(n)∈Z^(2)for n≥2 under some metric conditions on A_(n).

关键词： Moran-Sierpinski measures orthonormal basis of exponential functions self-affine measures spectral measures