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基于结构方程模型的杉木林林分结构多样性评价

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生态学报 2024年第2期44卷 745-756页

作者：莫永俊曹小玉赵文菲谢政锠孙亚萍袁达张泽莲吴树萍王萌蕾中南林业科技大学林学院长沙410004 南方森林资源经营与监测国家林业与草原局重点实验室长沙410004

综合评价杉木林林分结构多样性,可为提高林分结构多样性和精准制定森林经营措施提供理论依据。以湖南省平江县福寿林场的杉木林为研究对象,利用4株邻近木构建林分空间结构单元,选取表征林分树种组成多样性的全混交度、Simpson多样性指数... 详细信息

综合评价杉木林林分结构多样性,可为提高林分结构多样性和精准制定森林经营措施提供理论依据。以湖南省平江县福寿林场的杉木林为研究对象,利用4株邻近木构建林分空间结构单元,选取表征林分树种组成多样性的全混交度、Simpson多样性指数与Shannon-Wiener指数,表征林木大小分化多样性的大小变异系数、大小分化度均值指数与交角竞争指数和表征林木空间分布多样性的角尺度、林层指数与空间密度指数等9个指标,构建林分结构多样性评价结构方程模型,并确定各指标权重,对林分结构多样性进行综合评价。结果表明:(1)林分结构多样性评价结构方程模型的卡方自由度比值χ2/df为1.409,介于1—3之间,比较适配指数(CFI)、常规拟合指数(NFI)、增值适配指数(TLI)和拟合优度指数(GFI)的值分别为0.985、0.953、0.978和0.931,均大于0.9,近似误差均方根(RMSEA)为0.048,小于0.05,各指数的拟合效果良好,模型的适配度较好,满足研究的需要;(2)3个内生潜在变量林分树种组成多样性、林木大小分化多样性和林木空间分布多样性的权重分别为0.3518、0.3201和0.3281,对外生潜在变量林分结构多样性的影响大致一样,Shannon-Wiener指数是影响林分树种组成多样性的关键因素,交角竞争指数是影响林木大小分化多样性的关键因素,林层指数是影响林木空间分布多样性的最重要因素;(3)研究区3个龄组杉木林林分结构多样性的综合得分分别为0.3364、0.4396和0.4588,评价等级处于Ⅱ、Ⅲ等级,林分结构多样性较低,未达到理想的状态。评价结果较客观地表征了研究区杉木林林分结构多样性的现状,表明利用结构方程模型来评价林分结构多样性是科学、可行的,可为林分结构多样性评价提供一个全新的思路。

关键词：杉木林林分结构多样性指标权重结构方程模型

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思维导图式健康宣教在腹腔镜胆囊切除术患者围手术期中的护理效果

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国际医药卫生导报 2024年第13期30卷 2273-2278页

作者：王英孙亚平陈启凤林德艳徐凤美枣庄市台儿庄区人民医院感染管理科枣庄277400 枣庄市台儿庄区人民医院外一科枣庄277400 枣庄市台儿庄区人民医院五官科枣庄277400 枣庄市台儿庄区人民医院产后康复科枣庄277400

目的探讨思维导图式健康宣教在腹腔镜胆囊切除术患者围手术期中的护理效果。方法开展前瞻性随机对照试验。选取2020年1月至2022年12月在枣庄市台儿庄区人民医院行腹腔镜胆囊切除术治疗患者96例作为研究对象,利用随机数字表法分为两组,... 详细信息

目的探讨思维导图式健康宣教在腹腔镜胆囊切除术患者围手术期中的护理效果。方法开展前瞻性随机对照试验。选取2020年1月至2022年12月在枣庄市台儿庄区人民医院行腹腔镜胆囊切除术治疗患者96例作为研究对象,利用随机数字表法分为两组,各48例。对照组男14例、女34例,年龄(45.75±10.26)岁,行常规护理;试验组男14例、女34例,年龄(45.91±9.27)岁,行思维导图式健康宣教。对比两组患者护理前(入院当日)及护理后(出院前1 d)健康知识认知情况、自我管理能力和临床指标改善情况。采用t检验、χ^(2)检验。结果护理前,两组患者健康知识认知评分、自我管理能力评分及康复指标比较,差异均无统计学意义(均P>0.05)。护理后,试验组术前准备知识、腹腔镜手术操作方法、术后注意事项、术后康复知识评分及自我管理认知、自我管理行为、自我管理负性情绪控制、自我管理环境均高于对照组[(21.01±3.46)分比(18.97±2.67)分、(21.34±3.21)分比(19.67±2.48)分、(19.24±4.62)分比(17.48±3.69)分、(20.48±3.49)分比(18.67±2.61)分、(60.72±14.16)分比(54.97±12.08)分、(61.34±15.84)分比(53.57±13.04)分、(43.24±10.04)分比(38.48±9.57)分、(41.18±9.06)分比(36.88±8.51)分],差异均有统计学意义(t=3.234、2.852、3.082、2.877、2.140、2.624、2.378、2.397,均P<0.05)。试验组肛门排气时间、饮食恢复正常时间、下床活动时间、住院时间均短于对照组[(6.83±1.09)h比(7.69±1.25)h、(3.98±1.20)h比(4.65±1.26)h、(6.49±1.28)h比(7.11±1.36)h、(6.87±1.77)d比(7.96±1.61)d],差异均有统计学意义(t=3.593、2.668、2.300、3.156,均P<0.05)。结论思维导图式健康宣教可提高腹腔镜胆囊切除术患者对健康知识认知及自我管理能力,缩短术后各项指标恢复时间,提升疾病预后。

关键词：腹腔镜胆囊切除术思维导图式健康宣教围手术期健康知识自我管理

Oleic Acid and Eicosapentaenoic Acid Reverse Palmitic Acid-induced Insulin Resistance in Human HepG2 Cells via the Reactive Oxygen Species/JUN Pathway

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Genomics, Proteomics & Bioinformatics 2021年第5期19卷 754-771页

作者： yaping sun Jifeng Wang Xiaojing Guo Nali Zhu Lili Niu Xiang Ding Zhensheng Xie Xiulan Chen Fuquan Yang Key Laboratory of Protein and Peptide Pharmaceuticals&Laboratory of Proteomics Institute of BiophysicsChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Oleic acid(OA),a monounsaturated fatty acid(MUFA),has previously been shown to reverse saturated fatty acid palmitic acid(PA)-induced hepatic insulin resistance(IR).However,its underlying molecular mechanism is *** addition,previous studies have shown that eicosapentaenoic acid(EPA),aω-3 polyunsaturated fatty acid(PUFA),reverses PA-induced muscle IR,but whether EPA plays the same role in hepatic IR and its possible mechanism involved need to be further ***,we confirmed that EPA reversed PA-induced IR in HepG2 cells and compared the proteomic changes in HepG2 cells after treatment with different free fatty acids(FFAs).A total of 234 proteins were determined to be differentially expressed after PA+OA *** functions were mainly related to responses to stress and endogenous stimuli,lipid metabolic process,and protein *** PA+EPA treatment,the PA-induced expression changes of 1326 proteins could be reversed by EPA,415 of which were mitochondrial proteins,with most of the functional proteins involved in oxidative phosphorylation(OXPHOS)and tricarboxylic acid(TCA)*** studies revealed that the protein encoded by JUN and reactive oxygen species(ROS)play a role in OA-and EPA-reversed PA-induced IR,*** and OA alleviated PA-induced abnormal adenosine triphosphate(ATP)production,ROS generation,and calcium(Ca^(2+))***,H_(2)O_(2)-activated production of ROS increased the protein expression of JUN,further resulting in IR in HepG2 *** together,we demonstrate that ROS/JUN is a common response pathway employed by HepG2 cells toward FFA-regulated IR.

关键词： Free fatty acid Insulin resistance Quantitative proteomics Calcium ATP

Non-bonding modulations between single atomic cerium and monodispersed selenium sites towards efficient oxygen reduction

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Nano Research 2024年第6期17卷 4753-4763页

作者： Leilei Yin Shuai Zhang Mingzi sun Siyuan Wang Bolong Huang yaping Du Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsHaihe Laboratory of Sustainable Chemical TransformationsSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin 300350China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloon 999077Hong KongChina Research Centre for Carbon-Strategic Catalysis The Hong Kong Polytechnic UniversityHung HomKowloon 999077Hong KongChina

Currently,dual atomic catalysts(DACs)with neighboring active sites for oxygen reduction reaction(ORR)still meet lots of challenges in the synthesis,especially the construction of atomic pairs of elements from different blocks of the periodic ***,a“rare earth(Ce)-metalloid(Se)”non-bonding heteronuclear diatomic electrocatalyst has been constructed for ORR by rational coordination and carbon support defect ***,the optimized Ce-Se diatomic catalysts(Ce-Se DAs/NC)displayed a half-wave potential of 0.886 V *** hydrogen electrode(RHE)and excellent stability,which surpass those of separate Ce or Se single atoms and most single/dual atomic catalysts ever *** addition,a primary zinc-air battery constructed using Ce-Se DAs/NC delivers a higher peak power density(209.2 mW·cm^(−2))and specific capacity(786.4 mAh·gZn^(−1))than state-of-the-art noble metal catalysts Pt/*** calculations reveal that the Ce-Se DAs/NC has improved the electroactivity of the Ce-N_(4)region due to the electron transfer towards the nearby Se specific activity(SA)***,the more electron-rich Se sites promote the adsorptions of key intermediates,which results in the optimal performances of ORR on Ce-Se DAs/*** work provides new perspectives on electronic structure modulations via non-bonded long-range coordination micro-environment engineering in DACs for efficient electrocatalysis.

关键词： catalyst rare earth oxygen reduction reaction(ORR) metalloid non-bonding modulation

New Progress in the Treatment of Myasthenia Gravis

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Journal of Biosciences and Medicines 2023年第12期11卷 106-119页

作者： yaping sun Xianglin Cheng Department of Neurology Jingzhou First People’s Hospital Affiliated to Yangtze University Jingzhou China

In recent decades, the treatment of myasthenia gravis has been extensively developed, but a standardized standard still needs to be used. Its treatment strategy is associated with patient prognosis, economic costs, and complications. This article reviews the pathogenesis, treatment methods, and complications of myasthenia gravis, providing new ideas for diagnosing and treating myasthenia gravis and fully embodies the principle of safety and precision.

关键词： Myasthenia Gravis Thymusectomy Immunosuppressive Drug Biological Drug

Current Status and Perspectives of Dual-Atom Catalysts Towards Sustainable Energy Utilization

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Nano-Micro Letters 2024年第7期16卷 402-440页

作者： Yizhe Li Yajie Li Hao sun Liyao Gao Xiangrong Jin yaping Li Zhi LV Lijun Xu Wen Liu Xiaoming sun State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science EngineeringCollege of ChemistryBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China Xinjiang Coal Mine Mechanical and Electrical Engineering Technology Research Center Xinjiang Institute of EngineeringUrumqi 830023Xinjiang Uygur Autonomous RegionPeople’s Republic of China

The exploration of sustainable energy utilization requires the imple-mentation of advanced electrochemical devices for efficient energy conversion and storage,which are enabled by the usage of cost-effective,high-performance ***,heterogeneous atomically dispersed catalysts are considered as potential candidates for a wide range of *** to conventional cata-lysts,atomically dispersed metal atoms in carbon-based catalysts have more unsatu-rated coordination sites,quantum size effect,and strong metal-support interactions,resulting in exceptional catalytic *** these,dual-atomic catalysts(DACs)have attracted extensive attention due to the additional synergistic effect between two adja-cent metal *** have the advantages of full active site exposure,high selectiv-ity,theoretical 100%atom utilization,and the ability to break the scaling relationship of adsorption free energy on active *** this review,we summarize recent research advancement of DACs,which includes(1)the comprehensive understanding of the synergy between atomic pairs;(2)the synthesis of DACs;(3)characterization meth-ods,especially aberration-corrected scanning transmission electron microscopy and synchrotron spectroscopy;and(4)electrochemical energy-related *** last part focuses on great potential for the electrochemical catalysis of energy-related small molecules,such as oxygen reduction reaction,CO_(2) reduction reaction,hydrogen evolution reaction,and N_(2) reduction *** future research challenges and opportunities are also raised in prospective section.

关键词： Dual-atom catalysts Synergetic effect Electrocatalysis Oxygen reduction reaction CO_(2)reduction reaction Hydrogen evolution reaction N2 reduction reaction

ESAT-6联合多项检测指标评估抗结核药物性肝损伤严重程度的关系

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昆明医科大学学报 2024年第8期45卷 52-57页

作者：陆霓虹刘洪璐陈杨君孙娅萍杨艳杨永锐李杰昆明市第三人民医院/云南省传染性疾病临床医学中心云南昆明650041

目的检测ESAT-6联合IL-6、IL-10、IFN-γ、CK-18、MMP-7和MMP-9在抗结核药物性肝损伤(ATB-DILI)患者血清中的表达水平,分析上述指标与肝损伤严重程度的相关性,探讨7种因子对ATB-DILI的评估价值。方法纳入2019年1月至2023年1月就诊于... 详细信息

目的检测ESAT-6联合IL-6、IL-10、IFN-γ、CK-18、MMP-7和MMP-9在抗结核药物性肝损伤(ATB-DILI)患者血清中的表达水平,分析上述指标与肝损伤严重程度的相关性,探讨7种因子对ATB-DILI的评估价值。方法纳入2019年1月至2023年1月就诊于昆明市第三人民医院的肺结核患者,使用ELISA方法检测210例ATB-DILI的肺结核患者(A组)、120例抗结核治疗未发生肝损伤的肺结核患者(B组)及50例健康体检者(C组)血清中的ESAT-6、IL-6、IL-10、IFN-γ、CK-18、MMP-7、MMP-9水平,分析上述指标与肝损伤严重程度的相关性,以及评估肝损伤严重程度的准确性。结果 3组人群一般检查结果比较,A组患者年龄高于B、C组(P 65岁、ESAT-6>31.3 pg/m L、CK-18>45.5 ng/m L是ATB-DILI的独立危险因素。结论高龄患者更易发生ATB-DILI,ESAT-6、CK-18和MMP-9升高与ATB-DILI严重程度有关。年龄>65岁、ESAT-6>31.3 pg/m L、CK-18>45.5 ng/m L是ATB-DILI的独立危险因素,联合检测高龄患者ESAT-6和CK-18表达水平,对预判及评估ATB-DILI严重程度具有较高的临床价值。

关键词：早期分泌靶向抗原6 细胞角蛋白18 抗结核药物性肝损伤白介素基质金属蛋白酶

肾结石经输尿管软镜碎石术后血清神经导向因子-1、结缔组织生长因子水平对肾损伤的预测价值

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临床外科杂志 2024年第3期32卷 314-317页

作者：刘蕴锋孙亚萍李秉诚冯元法曹满超王风尧山东省青岛阜外心血管病医院泌尿外科山东省青岛市市南区金湖路街道山东路社区卫生服务中心注射室山东省青岛大学附属青岛市第三人民医院泌尿外科

目的探讨血清神经导向因子-1(Netrin-1)、结缔组织生长因子(CTGF)对肾结石经输尿管软镜碎石术后肾损伤的预测价值。方法 2020年3月~2022年3月我院收治的肾结石病人104例,均采用经输尿管软镜碎石术治疗,选取同期我院健康体检者98例为对... 详细信息

目的探讨血清神经导向因子-1(Netrin-1)、结缔组织生长因子(CTGF)对肾结石经输尿管软镜碎石术后肾损伤的预测价值。方法 2020年3月~2022年3月我院收治的肾结石病人104例,均采用经输尿管软镜碎石术治疗,选取同期我院健康体检者98例为对照组。将输尿管软镜碎石术后肾结石病人分为肾损伤组(58例)和非肾损伤组(46例)。使用酶联免疫吸附法(ELISA)检测血清Netrin-1、CTGF的表达水平。采用单因素分析及多因素Logistic回归分析肾结石经输尿管软镜碎石术后出现肾损伤的影响因素,采用受试者工作特性(ROC)曲线评估血清Netrin-1、CTGF对肾结石经输尿管软镜碎石术后肾损伤的预测价值。结果研究组血清Netrin-1、CTGF表达水平均高于对照组;肾损伤组血清Netrin-1、CTGF水平高于非肾损伤组;多因素Logistic回归分析显示,Netrin-1≥300 ng/L、CTGF≥0.80 ng/L是输尿管软镜碎石术后肾损伤的危险因素(P<0.05)。血清Netrin-1、CTGF在预测经输尿管软镜碎石术后肾结石病人发生肾损伤的AUC分别为0.731(95%CI:0.668~0.813)、0.845(95%CI:0.798~0.892),两者联合预测的AUC为0.903(95%CI:0.852~0.955)。结论血清Netrin-1、CTGF表达水平升高与输尿管软镜碎石术后出现肾损伤密切相关,可作为评估输尿管软镜碎石术后早期肾损伤生物学指标,且两者联合预测的效能更高。

关键词：肾结石软镜碎石术神经导向因子-1 结缔组织生长因子肾损伤预测

The first chiral cerium halide towards circularly-polarized luminescence in the UV region

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Science China Chemistry 2024年第6期67卷 1961-1968页

作者： Xinyi Niu Zhichao Zeng Zhaoyu Wang Haolin Lu Bing sun Hao-Li Zhang Yongsheng Chen yaping Du Guankui Long Tianjin Key Lab for Rare Earth Materials and Applications Renewable Energy Conversion and Storage CenterSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China Tianjin Key Lab for Rare Earth Materials and Applications Center for Rare Earth and Inorganic Functional MaterialsHaihe Laboratory of Sustainable Chemical TransformationsSmart Sensing Interdisciplinary Science CenterSchool of Materials Science and EngineeringNational Institute for Advanced MaterialsNankai UniversityTianjin300350China State Key Laboratory of Applied Organic Chemistry Key Laboratory of Special Function Materials and Structure Design(Ministry of Education)College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000China The Centre of Nanoscale Science and Technology and State Key Laboratory of Elemento-Organic Chemistry Frontiers Science Center for New Organic MatterCollege of ChemistryNankai UniversityTianjin300071China

Chiral organic-inorganic hybrid metal halides(OIHMHs)have attracted broader scientific community recently in spin lightemitting diodes,and circularly polarized light-emitting ***,the emission peaks of the reported chiral OIHMHs mainly locate in the visible region,and chiral OIHMH with ultraviolet(UV)circularly polarized luminescence(CPL)has been rarely *** fill this gap,cerium,a unique rare-earth(RE)element with tunable luminescence from UV to the visible region owing to the 4 f-related electronic transition,was introduced to construct the first RE-based chiral OIHMHs,R/*** chirality is successfully transferred from the chiral organic cations to the inorganic cerium chloride framework in R/S-MCC,as confirmed by the single crystal structures,circular dichroism,and *** emission spectra of R/S-MCC are in the UV region,originating from the characteristic d-f transition of Ce^(3+),which making the Ce-based metal halides are ideal candidates towards CPL light sources in the UV ***,R-and S-MCC are the first RE-based OIHMHs,also the first chiral metalhalides with UV *** work opens a new avenue for the development of the chiral OIHMH family towards RE-based chiral *** RE-based chiral metal halides couple the unique and superior optical,electrical,magnetic,and spintronic properties of RE elements with chirality could accelerate the development of chiral optoelectronics and spintronics toward real applications.

关键词： chiral rare-earth halide ultraviolet circularly-polarized luminescence d-f transition rare-earth halide perovskite chiral perovskite