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Journal of Mountain Science 2024年第6期21卷 2059-2074页

作者： ZHOU Jianwei FENG Bin WU Hua XU Tong chen linna ZHAO Xinyong GUO Qiyun LI Jiatong ZHANG chenguang ZHU Kangcheng KONG Yuzhong School of Ecology and Environment Tibet UniversityLhasa 850000China School of Engineering Tibet UniversityLhasa 850000China Joint Laboratory of Plateau Surface Remote Sensing Tibet UniversityLhasa 850000China

The Lhasa River Basin forms an essential human settlement area in the southern part of the Qinghai-Tibet *** study employed ecosystem service value(ESV)evaluation model,terrain gradient grading,and Geodetector to analyze land use and ESV in the Lhasa River Basin from 1985 to *** findings reveal that:(1)From 1985 to 2020,grassland was the dominant land *** was a trend of grassland reduction and the expansion of other land types.(2)ESV has increased over the research period(with a total increase of 0.84%),with higher values in the southeast and lower values in the *** contributed the most to ESV,and climate regulation and hydrological regulation were the ecosystem services that contribute the most to ESV.(3)Natural factors like NDVI and altitude,as well as economic factors like population density and distance from roads,influenced the spatial differentiation of ESV,the explanatory power of NDVI reached up to *** interaction between factors had a greater impact than individual *** research results can provide theoretical support for national spatial planning and ecological environment protection in the Lhasa River Basin and other similar areas.

关键词： Ecosystem services value Land use Terrain gradient effect Lhasa River Basin Driving factors

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子女代际支持对农村老年人消费的影响

黑龙江科学 2024年第9期15卷 31-33页

作者：陈琳娜刘豪山西农业大学农业经济管理学院山西晋中030801

为加快推进居家养老服务体系建设,基于中国健康与养老追踪调查(CHARLS)数据,构建子女代际支持对农村老年人消费的影响回归模型。研究结果显示,子女给予的经济支持与情感支持会促进农村老年人消费水平的提升,而子女照料支持对农村老年人... 详细信息

为加快推进居家养老服务体系建设,基于中国健康与养老追踪调查(CHARLS)数据,构建子女代际支持对农村老年人消费的影响回归模型。研究结果显示,子女给予的经济支持与情感支持会促进农村老年人消费水平的提升,而子女照料支持对农村老年人总消费有显著的负向影响,原因在于子女亲自照料父母会减少家政、护理服务费用的支出。为促进农村老年人消费,应不断提高子女的经济赡养意识、精神赡养意识及照料意识,同时转变农村老年人的消费观念,从而实现农村老年人消费能力与消费意愿的双提升。

关键词：代际支持农村老年人经济支持情感支持照料支持

短期氮添加降低亚热带黄山松林和罗浮栲林土壤微生物固氮速率

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应用生态学报 2024年第4期35卷 917-925页

作者：陈琳娜曾泉鑫张晓晴张秋芳元晓春戴辉李文周陈岳民福建师范大学地理科学学院福州350007 福建师范大学湿润亚热带山地生态国家重点实验室培育基地福州350007 武夷学院旅游学院福建武夷山354300 福建戴云山国家级自然保护区管理局福建泉州362500

生物固氮是陆地生态系统氮素的重要来源,但不同森林生态系统土壤微生物固氮速率对氮沉降的响应仍不明确。本研究在亚热带黄山松林和罗浮栲林开展野外氮添加模拟大气氮沉降试验。以尿素为氮源,设置了3个氮添加水平:0(对照)、40(低氮)和80... 详细信息

生物固氮是陆地生态系统氮素的重要来源,但不同森林生态系统土壤微生物固氮速率对氮沉降的响应仍不明确。本研究在亚热带黄山松林和罗浮栲林开展野外氮添加模拟大气氮沉降试验。以尿素为氮源,设置了3个氮添加水平:0(对照)、40(低氮)和80 kg N·hm^(-2)·a^(-1)(高氮)。测定了表层(0~10 cm)土壤化学性质、微生物生物量碳、酶活性和nifH基因拷贝数,并利用^(15)N标记法测定土壤微生物固氮速率。结果表明:与对照相比,氮添加显著降低了黄山松林和罗浮栲林土壤微生物固氮速率,降幅分别为29%~33%和10%~18%。氮添加显著降低了两种林分土壤微生物氮获取酶(β-1,4-N-乙酰氨基转移酶)活性和nifH基因拷贝数。黄山松林土壤微生物固氮速率与可溶性有机碳含量存在显著正相关关系,而罗浮栲林土壤微生物固氮速率与铵态氮含量存在显著负相关关系。总之,黄山松林土壤微生物固氮功能对氮添加的响应比罗浮栲林更敏感,且影响土壤微生物固氮速率的因素在两种林分中存在差异。本研究可为氮沉降对森林生态系统生物固氮的影响提供见解,并为森林经营管理提供理论依据。

关键词：氮添加森林类型自生固氮 ^(15)N标记 nifH 丛枝菌根真菌

3年高氮添加对黄山松土壤真菌网络稳定性的影响

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生态学报 2024年第8期44卷 3372-3381页

作者：元晓春曾泉鑫张晓晴孙浩柏欣宇陈琳娜李文周陈亚婷陈岳民林开淼武夷学院旅游学院武夷山354300 福建师范大学地理科学学院福州350007 福建戴云山国家级自然保护区管理局德化362500

土壤真菌群落对维持生态系统功能至关重要,然而氮沉降等环境变化如何影响其稳定性尚不清楚。利用高通量测序和网络分析,探究了连续三年不同氮添加水平对土壤真菌群落特征的影响,并通过计算“内聚力”量化连通性以预测真菌网络的稳定性... 详细信息

土壤真菌群落对维持生态系统功能至关重要,然而氮沉降等环境变化如何影响其稳定性尚不清楚。利用高通量测序和网络分析,探究了连续三年不同氮添加水平对土壤真菌群落特征的影响,并通过计算“内聚力”量化连通性以预测真菌网络的稳定性。结果表明,真菌多样性及其群落稳定性对氮添加的响应存在明显的时间效应。相比于前2年,第3年氮添加改变了真菌β多样性,且低氮添加显著提高了0—10 cm土层真菌Chao1和Shannon指数。网络分析发现,随着氮添加量的增加真菌网络正连接比例增加,平均聚类系数和模块性降低。内聚力分析表明,第3年高氮添加显著降低了两个土层的真菌负:正内聚力的绝对值,而低氮添加提高或不改变两者的比值。这说明高剂量氮添加将通过破坏真菌群落的稳定性影响其生态系统服务功能。研究为评价不同水平氮添加下森林土壤真菌群落稳定性提供了新的见解,对评价氮沉降的生态效应具有科学意义。

关键词：真菌网络内聚力群落稳定性真菌多样性氮沉降

浙江省1型糖尿病住院患者临床特征及管理现状调查

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中华糖尿病杂志 2024年第1期16卷 56-62页

作者：陈琳娜曹星月符鸿俊黄海燕毛齐彬楼晓佳徐芬娟徐忠森沈晓明孙霞金剑虹武晓泓青岛大学医学部青岛266000 浙江省人民医院杭州医学院附属人民医院内分泌科杭州310014 浙江省台州恩泽医疗中心(集团)路桥医院内分泌科台州318050 浙江省杭州市富阳区中医院内分泌科杭州311400 绍兴第二医院内分泌科绍兴312000 浙江省东阳市人民医院内分泌科东阳322100 浙江省桐乡市第一人民医院内分泌科桐乡314500 浙江省衢州市柯城区人民医院内分泌科衢州324000 浙江省平湖市第一人民医院内分泌科平湖314200 浙江中医药大学附属丽水中医院内分泌科丽水323000 杭州市中医院内分泌科杭州310007

目的:探讨浙江省1型糖尿病(T1DM)住院患者的临床特征及管理现状。方法:为横断面研究。选择2016年10月至2022年7月于浙江省10家医院住院的T1DM患者作为研究对象。收集患者的一般临床资料(包括起病年龄、性别、住院天数、病程)、实验室指... 详细信息

目的:探讨浙江省1型糖尿病(T1DM)住院患者的临床特征及管理现状。方法:为横断面研究。选择2016年10月至2022年7月于浙江省10家医院住院的T1DM患者作为研究对象。收集患者的一般临床资料(包括起病年龄、性别、住院天数、病程)、实验室指标[包括生化、糖化血红蛋白、餐后2 h血糖、胰岛素、C肽、谷氨酸脱羧酶抗体(GADA)、蛋白酪氨酸磷酸酶抗体(IA-2A)、胰岛素自身抗体(IAA)、胰岛细胞抗体(ICA)]、并发症筛查情况(包括尿白蛋白/肌酐比值检测、眼底照相、肌电图、颈动脉超声、双下肢动脉超声及四肢多普勒超声)、治疗方案(包括胰岛素治疗方案及联用降糖药的情况)等。按照就诊时间将T1DM患者分为2016年10月至2019年8月组及2019年9月至2022年7月组,比较两组慢性并发症筛查率、检出率及抗体检测率等情况。组间比较采用 χ2检验。结果:共564例T1DM患者纳入本研究。患者的年龄从1岁到84岁不等,其中成人(≥18岁)390例,儿童和青少年(<18岁)174例。T1DM患者的住院天数、起病年龄和病程中位数分别为7(6,10)d、29(16,45)岁和3(0,8)年。其中,56.6%(319/564)的T1DM患者有急性并发症,49.6%(280/564)的T1DM患者有慢性并发症。56.9%(321/564)的T1DM患者有合并症,包括血脂异常[25.7%(145/564)]、高血压[12.2%(69/564)]、高尿酸血症[8.2%(46/564)]、自身免疫性甲状腺疾病[9.0%(51/564)]、肥胖症[4.8%(27/564)]。糖尿病肾脏病、糖尿病视网膜病变、糖尿病周围神经病变及糖尿病周围血管病变的筛查率分别为71.5%(403/564)、58.9%(332/564)、55.5%(313/564)及80.7%(455/564),相应的检出率分别为21.6%(87/403)、27.4%(91/332)、47.0%(147/313)和31.6%(144/455)。99.5%(561/564)的T1DM患者使用胰岛素治疗。每日多次胰岛素注射治疗占比最高,为78.7%(444/564)。除胰岛素外,34.0%(192/564)的T1DM患者还联用非胰岛素类药物,α-葡萄糖苷酶抑制剂是最常用的药物[53.6%(103/192)]。2019年9月至2022年7月组GADA、IA-2A、ICA、IAA检测率高于2016年10月至2019年8月组( P<0.05)。并发症筛查中,除糖尿病肾脏病外,2019年9月至2022年7月组患者慢性并发症筛查率均比2016年10月至2019年8月组高,包括视网膜病变、周围神经病变、周围血管病变筛查率均提高( P<0.05)。结论:浙江省T1DM患者主要是成人起病。近年来,浙江省T1DM患者的糖尿病并发症筛查率及抗体检测率呈上升趋势,体现了浙江省对T1DM住院患者的管理较前更加规范,但糖尿病抗体检测率及并发症的筛查率仍较低,有待进一步提高。

关键词：糖尿病 1型管理筛查

Ecological Risk Assessment of Heavy Metals Pollution in Soil and Lotus Seeds in Xiangtan Lotus Planting Area

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Meteorological and Environmental Research 2023年第4期14卷 34-37,41页

作者： Hui YU linna chen College of Life and Health Sciences Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-Polluted SoilsKey Laboratory of Economic Crops Genetic Improvement and Integrated UtilizationHunan University of Science and TechnologyXiangtan 411201China

In order to study the pollution characteristics and potential ecological risks of heavy metals in soil of Xiangtan lotus planting area,the contents of Mn,Cu,As,Cd,Pb and Cr in soil and lotus seeds were analyzed in six main lotus planting *** comprehensive potential ecological risks of heavy metals in soil were evaluated by the potential ecological hazard *** results showed that Cd concentration(mean value)was higher than the risk screening value and lower than the risk control value,and other heavy metals were lower or close to the risk screening *** ecological risks of each element from large to small were Cd,Pb,As,Cu,Cr and *** average value of the comprehensive ecological hazard index of the six sites was 224.7,which was a medium level of pollution *** lotus seeds corresponding to each site were also polluted by heavy metals to a certain extent,and Cd and Pb in the seeds exceeded the *** the above analysis,the heavy metals in the soil of the lotus planting area presented a medium ecological *** order to ensure the safety of lotus production,it is necessary to strengthen the soil testing and management in the lotus planting area.

关键词： Xiangtan Lotus Heavy metals Ecological risk

A Normalizing Flow-Based Bidirectional Mapping Residual Network for Unsupervised Defect Detection

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Computers, Materials & Continua 2024年第2期78卷 1631-1648页

作者： Lanyao Zhang Shichao Kan Yigang Cen Xiaoling chen linna Zhang Yansen Huang School of Mechanical Engineering Guizhou UniversityGuiyang550025China School of Computer Science and Engineering Central South UniversityChangsha410083China School of Computer and Information Technology Beijing Jiaotong UniversityBeijing100044China College of Civil Engineering Guizhou UniversityGuiyang550025China Guizhou Lianjian Civil Engineering Quality Inspection Monitoring Center Co. Ltd.Guiyang550025China

Unsupervised methods based on density representation have shown their abilities in anomaly detection,but detection performance still needs to be ***,approaches using normalizing flows can accurately evaluate sample distributions,mapping normal features to the normal distribution and anomalous features outside ***,this paper proposes a Normalizing Flow-based Bidirectional Mapping Residual Network(NF-BMR).It utilizes pre-trained Convolutional Neural Networks(CNN)and normalizing flows to construct discriminative source and target domain feature ***,to better learn feature information in both domain spaces,we propose the Bidirectional Mapping Residual Network(BMR),which maps sample features to these two spaces for anomaly *** two detection spaces effectively complement each other’s deficiencies and provide a comprehensive feature evaluation from two perspectives,which leads to the improvement of detection *** experimental results on the MVTec AD and DAGM datasets against the Bidirectional Pre-trained Feature Mapping Network(B-PFM)and other state-of-the-art methods demonstrate that the proposed approach achieves superior *** the MVTec AD dataset,NF-BMR achieves an average AUROC of 98.7%for all 15 ***,it achieves 100%optimal detection performance in five *** the DAGM dataset,the average AUROC across ten categories is 98.7%,which is very close to supervised methods.

关键词： Anomaly detection normalizing flow source domain feature space target domain feature space bidirectional mapping residual network

Discussion on the motion exhibited in the ＂Sistine Madonna＂ --Concurrent discussion on the stroboscopic theory of Mr. Arne Heim

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International English Education Research 2014年第4期 20-22页

作者： Fang Yu chen linna Jingdezhen University Jingdezhen Jiangxi 333000

The theory of motion is the important section of Mr. Arne Heim＇s theory of visual perception. In this paper, the author focus- es on his stroboscopic theory, and at the same time, according to the motion theory of Mr... 详细信息

关键词： Stroboscopic "Sistine Madonna" motion

Students’Feedback on Integrating Engineering Practice Cases into Lecture Task in Course of Built Environment

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Journal of Donghua University(English Edition) 2022年第3期39卷 251-257页

作者： YANG Xuebin ZHONG Ke chen linna YANG Zili LIANG Zhen College of Environmental Science and Engineering Donghua University Shanghai 201620 China College of Continuing Education University of Shanghai for Science and Technology Shanghai 200093 China

The improvement of students’abilities is of great significance to discover the relevant scientific problems in daily life,to analyze and solve practical problems,to trigger scientific inspiration,and to encourage innovation and *** the course entitled Built Environment(BE)as an example,this study introduces five lecture cases combining with engineering practices,and examines the evaluation of teaching and learning effect on student *** cases consider various problems to be solved urgently in an actual project,and evaluate the student outcomes by statistically analyzing the *** of the students actively participate in five cases and cheerfully share their *** than 85%of students are satisfied with the engineering practice and the learning proposal,and convey a little or even significantly change in their understanding of the employment prospects.

关键词： student outcome feedback engineering practice lecture task Built Environment and Energy Application Engineering(BEEAE)

BjuIR:A multi-omics database with various tools for accelerating functional genomics research in Brassica juncea

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Plant Communications 2024年第8期5卷 96-99页

作者： linna Zhang Jinyuan Xiao Congyuan Liang Yifan chen Changchun Yu Xinle Zhao Jiawei Li Mingli Yan Qian Yang Hao chen Zhongsong Liu Zhengjie Wan Zhiquan Yang Qing-Yong Yang National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops College of InformaticsHuazhong Agricultural UniversityWuhan 430070China Hubei Key Laboratory of Agricultural Bioinformatics and Hubei Engineering Technology Research Center of Agricultural Big Data College of InformaticsHuazhong Agricultural UniversityWuhan 430070China National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Yazhouwan National Laboratory Sanya 572025China National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Crop Research Institute Hunan Academy of Agricultural SciencesChangsha 410125China College of Agronomy Hunan Agricultural UniversityChangsha 410128China

Dear Editor,Advances in high-throughput omics technologies,along with methodologies for integrating multi-omics datasets,have substantially enhanced the efficiency of identifying candidate genes in breeding(Gusev et al.,2018;Gupta et al.,2019).However,this process is often complex and *** address this challenge,databases that integrate extensive data and enable convenient and efficient functional genomics studies are being developed(Ma et al.,2021;Yang et al.,2023).

关键词： functional integrating convenient