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Alpine grassland degradation intensifies the burrowing behavior of small mammals:evidence for a negative feedback loop

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Integrative Zoology 2024年第2期19卷 240-252页

作者： Zaiwei WANG jiawen YAN Amy MARTIN Dianne HBRUNTON jiapeng QU jin-Sheng HE weihong ji Zhibiao NAN State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina Manaaki Whenua-Landcare Research LincolnNew Zealand School of Natural Sciences Massey University(Albany Campus)AucklandNew Zealand Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina Qinghai Haibei National Field Research Station of Alpine Grassland Ecosystem Northwest Institute of Plateau BiologyChinese Academy of SciencesXiningChina Institute of Ecology College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeijingChina

Globally,grassland degradation is an acute ecological *** alpine grassland on the Tibetan Plateau,increased densities of various small mammals in degraded grassland are assumed to intensify the degradation process and these mammals are subject to lethal ***,whether the negative impact of small mammals is solely a result of population size or also a result of activity and behavior has not been *** this study,we use plateau pika as a model to compare population size,core area of colony,and the number of burrow entrances and latrines between lightly and severely degraded *** test whether the alleged contribution of pika to grassland degradation is a result of increased population size or increased burrowing activities of individuals in response to lower food *** found that grassland degradation resulted in lower plant species richness,plant height,and ***,the overall population size of pika was not significantly affected by location in lightly and severely degraded ***,pika core areas in severely grassland degradation were significantly larger and had significantly higher densities of burrows and *** study provides convincing evidence that habitat-induced changes in the behavior of small,burrowing mammals,such as pika,can exacerbate grassland *** finding has significant implications for managing small mammals and restoring degraded grassland ecosystems.

关键词： burrowing behavior grassland degradation plateau pika population size small mammals

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《中华眼视光学与视觉科学杂志》2012—2023年高被引论文特征分析及启示

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中华眼视光学与视觉科学杂志 2024年第4期26卷 297-304页

作者：张以舒季魏红毛文明吴飞盈温州医科大学图书馆(期刊社) 温州325035

目的:分析《中华眼视光学与视觉科学杂志》(以下简称《杂志》)近12年高被引论文的多维计量特征,为进一步提高期刊影响力提供参考依据。方法:通过文献计量学方法,使用Excel、VOSviewer、Pajek等软件对《杂志》2012—2023年期间被引频次... 详细信息

目的:分析《中华眼视光学与视觉科学杂志》(以下简称《杂志》)近12年高被引论文的多维计量特征,为进一步提高期刊影响力提供参考依据。方法:通过文献计量学方法,使用Excel、VOSviewer、Pajek等软件对《杂志》2012—2023年期间被引频次≥10次的高被引论文进行统计,分别从发表年度、栏目、作者、机构、地区、基金资助、关键词等方面进行文献计量分析和可视化分析。所有数据均来源于中国知网和万方数据库。结果:2012—2023年期间,《杂志》被引频次≥10的高被引论文共317篇,总被引5492次,篇均被引17.32次,年份集中于2012—2022年。高被引论文中,论著栏目篇数最多(占比71.3%),"专家共识"栏目篇均被引贡献最高(41.36次);涉及1096位作者240所机构,作者合作率95%;基金资助论文108篇,篇均被引17.17次,与非基金资助论文的篇均被引17.41次相差不大;高频关键词主要集中在近视、儿童、飞秒激光小切口角膜基质透镜取出术、视觉质量、白内障、角膜塑形术、干眼症等。结论:《杂志》具有作者合作率高、地区分布广、发表主题涵盖眼科学领域的热点及前沿等特点,尤其专家共识栏目的学术影响力较高。编辑可通过重视专家共识约稿、优化作者队伍建设、关注核心机构动态、及时把握学科热点问题等来提高论文关注度,进而提升期刊的学术影响力。

关键词：期刊高被引论文被引频次文献计量学中华眼视光学与视觉科学杂志

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ICP⁃OES法测定水中碳酸根和溶解二氧化碳

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食品研究与开发 2024年第8期45卷 133-138页

作者：郭文丽王欣纪卫红天津市食品安全检测技术研究院天津300308

为建立一种气态进样的快速测定水样中碳酸根及溶解二氧化碳的电感耦合等离子体原子发射光谱分析方法,对气态进样方式进行改进、设计,采用二氧化碳在线发生装置,利用稀盐酸和待测样液酸化反应生成二氧化碳,使用电感耦合等离子发射光谱测... 详细信息

为建立一种气态进样的快速测定水样中碳酸根及溶解二氧化碳的电感耦合等离子体原子发射光谱分析方法,对气态进样方式进行改进、设计,采用二氧化碳在线发生装置,利用稀盐酸和待测样液酸化反应生成二氧化碳,使用电感耦合等离子发射光谱测定水样中碳的含量。优化确定酸的种类、酸使用量及仪器中各参数的最佳选择,根据使用体积和释放二氧化碳浓度的关系建立曲线,得到样品中碳酸根及溶解二氧化碳的含量。该方法待测二氧化碳浓度在0~400 mg/L内时呈线性关系,碳酸根的检出限为0.021 mg/L、溶解二氧化碳的检出限为0.077 mg/L。样品加标回收率为98.75%~107.15%,精密度为3.31%~5.78%。该方法对水体中无机碳测定有一定效果,在监测水体中溶解无机碳变化、通量及对其来源分析方面具有应用意义。

关键词：溶解二氧化碳碳酸根水样气态进样电感耦合等离子体原子发射光谱法

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Climate migrants’survival threatened by“C”shaped anthropic barriers

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Integrative Zoology 2020年第1期15卷 32-39页

作者： Luca BUTIKOFER weihong ji Roberto SACCHI Marco MANGIACOTTI School of Natural and Computational Sciences Massey UniversityNew Zealand Department of Earth and Environmental Science University of Pavia PaviaItaly

Despite studies on range shifts being abundant,the problem of dispersal barriers limiting climate migrants’movement is yet to be fully included into any modeling *** this reason,we introduce a novel concept whereby the interplay of range shifts and dispersal barriers of a particular spatial configuration can threaten the persistence of populations under a climate change *** named this concept“C-trap,”based on the topographic shape of such *** elaborating on the theoretical features of C-traps,we provide a simple method that combines environmental data and future climate projections to locate them *** use this method to determine where high C-trap densities have the potential to further threaten the conservation of endangered,endemic animals across the world’s terrestrial realm,in a climate change *** methodology detected potential C-traps for the study system,with areas of high density mostly located in east Europe,south Asia and North ***,finer-scale analyses are required to assess the magnitude of the threat *** barriers add an additional dimension to range shift studies and can ultimately prevent otherwise successful climate migrants from tracking their climatic *** methodology presented here is simple and flexible enough to be adapted to a wide range of taxa and locations as well as the fast development of range shift ***,we encourage researchers to include the effects of anthropogenic dispersal barriers in range shifts models and in the planning of effective conservation strategies with reference to climate change.

关键词： anthropogenic climate change land cover range shift trap

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Blue sheep in the Annapurna Conservation Area,Nepal:habitat use,population biomass and their contribution to the carrying capacity of snow leopards

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Integrative Zoology 2014年第1期9卷 34-45页

作者： Achyut ARYAL Dianne BRUNTON weihong ji David RAUBENHEIMER Institute of Natural and Mathematical Sciences Massey UniversityAucklandNew Zealand Fauna and Flora Conservation Nepal KathmanduNepal Charles Perkins Centre and Faculty of Veterinary Science and School of Biological Sciences The University of SydneySydneyAustralia.

The Himalaya region of Nepal provides a habitat for the endangered snow leopard(Panthera uncia)and its principal prey species,the blue sheep(Pseudois nayaur).The aim of this study was to describe the habitat,the distribution and the population structure of blue sheep,and to estimate their contribution to the carrying capac-ity of snow leopard in the upper Mustang region of *** sheep were recorded at altitudes from 3209-5498 m on slopes with gradients of 16-60°and aspects of 40°NE to 140°SE.A total of 939 blue sheep were counted in the upper Mustang region,and 98 were counted in the Yak Kharka region of Manang district;how-ever,upper Mustang had the lowest population density of blue sheep recorded within their distribution range in Nepal(0.86 blue sheep/km^(2)).The results of the study show that a higher density of blue sheep is associated with greater plant species *** most important species present in the blue sheep habitat were Kobresia pyg-maea,Artemesia spp.,Lonicera spp.,Lancea tibetica,Poa spp.,Astragalus *** Ephedra *** is estimated that the existing blue sheep population biomass of approximately 38925 kg in the upper Mustang re-gion could support approximately 19 snow leopards(1.6 snow leopards/100 km^(2)).

关键词： blue sheep carrying capacity habitat use population density snow leopard

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气相色谱法测定韭菜中腐霉利含量的不确定度评估

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质量安全与检验检测 2024年第3期34卷 66-70页

作者：纪卫红王欣郭文丽天津市食品安全检测技术研究院仪器分析部天津300308

本实验采用QuEChERS前处理,气相色谱法(QuEChERS-GC-ECD)检测韭菜中的腐霉利含量,并做出不确定度评估。以JJF 1059.1—2012《测量不确定度评定与表示》和CNAS-GL006《化学分析中不确定度的评估指南》为指导,通过分析梳理各个检测环节,... 详细信息

本实验采用QuEChERS前处理,气相色谱法(QuEChERS-GC-ECD)检测韭菜中的腐霉利含量,并做出不确定度评估。以JJF 1059.1—2012《测量不确定度评定与表示》和CNAS-GL006《化学分析中不确定度的评估指南》为指导,通过分析梳理各个检测环节,找出可能影响检测结果准确性的多个不确定因素,并对其做出系统分析、科学评估和量化处理。结果显示,引入本法不确定度的环节包括:标准溶液配置(标准物质及定容过程)、样品前处理(样品称量及试剂移取过程)、样品的重复性测定过程及仪器本身性能引入的不确定度。得到了韭菜中腐霉利含量测定的合成相对标准不确定度为0.335 mg/kg,扩展不确定度为0.670 mg/kg,本实验测得的腐霉利含量结果可表示为(8.24±0.670)mg/kg,k=2。建立了该分析方法的数学模型,为提高该法测定结果的准确性、科学性、稳定性提供了技术支撑。

关键词：气相色谱韭菜腐霉利不确定度

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人工智能时代数字化平台学术诚信体系的建设与应用

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编辑学报 2024年第4期36卷 421-424页

作者：蒋素琼吴飞盈吴昔昔谢浩煌季魏红温州医科大学图书馆(期刊社) 浙江温州325035

为加强学术诚信技术体系建设,助力人工智能时代数字化平台系统升级,本文基于中华医学会杂志社一体化学术期刊出版服务平台的技术应用,结合人工智能时代学术失范的新特点,探讨数字化稿件处理中各类学术不端行为的全程检测。分析现有技术... 详细信息

为加强学术诚信技术体系建设,助力人工智能时代数字化平台系统升级,本文基于中华医学会杂志社一体化学术期刊出版服务平台的技术应用,结合人工智能时代学术失范的新特点,探讨数字化稿件处理中各类学术不端行为的全程检测。分析现有技术手段的局限性,包括检测精准度有限、数据库壁垒、图像检测难度大等问题,提出利用人工智能、区块链技术、规范数据引注标识等工具,帮助平台升级系统,助力学术诚信体系的技术建设。

关键词：学术不端平台建设人工智能区块链技术

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Delivery systems for theranostics in neurodegenerative diseases

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Nano Research 2018年第10期11卷 5535-5555页

作者： Yan Li Ruiyuan Liu weihong ji Yanhui Li Linying Liu Xin Zhang State Key Laboratory of Biochemical Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China

Neurodegenerative diseases are characterized by progressive nervous system dysfunction, which affects over 90,000 people every year. Although numerous contrast agents and therapeutic drugs are available for the diagnosis and therapy of neurodegenerative diseases, there are several limitations to their application. Particularly, these contrast agents and drugs are restricted from entering into the brain because of the blood-brain barrier, which represents a major bottleneck to efficacious and safe theranostics of neurodegenerative diseases. Nanoparticles can offer impressive improvement in the theranostics of neurodegenerative diseases, as they can effectively deliver contrast agents and drugs to target sites in the central nervous system. In this review, we describe various delivery systems, including lipid nanoparticles, polymeric nanoparticles, inorganic nanoparticles, and exosomes useful for the theranostics of neurodegenerative diseases. Finally, we outline current challenges and our perspectives on the development of delivery systems for theranostics of neurodegenerative diseases.

关键词： neurodegenerative diseases theranostics blood-brain barrier delivery systems

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Nature-inspired nanocarriers for improving drug therapy of atherosclerosis

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Regenerative Biomaterials 2023年第1期10卷 1314-1331页

作者： weihong ji Yuanxing Zhang Yuanru Deng Changyong Li Ranjith Kumar Kankala Aizheng Chen Institute of Biomaterials and Tissue Engineering Huaqiao UniversityXiamenFujian 361021PR China Fujian Provincial Key Laboratory of Biochemical Technology Huaqiao UniversityXiamenFujian 361021PR China The Institute of Forensic Science Xiamen Public Security BureauXiamenFujian 361104PR China

Atherosclerosis(AS)has emerged as one of the prevalent arterial vascular diseases characterized by plaque and inflammation,primarily causing disability and mortality *** therapy remains the main treatment for ***,a series of obstacles hinder effective drug ***,from natural micro-/nano-structural biological particles like natural cells and extracellular vesicles to the distinctions between the normal and pathological microenvironment,offers compelling solutions for efficient drug ***-inspired nanocarriers of synthetic stimulus-responsive materials and natural components,such as lipids,proteins and membrane structures,have emerged as promising candidates for fulfilling drug delivery *** nanocarriers offer several advantages,including prolonged blood circulation,targeted plaque delivery,targeted specific cells delivery and controlled drug release at the action *** this review,we discuss the nature-inspired nanocarriers which leverage the natural properties of cells or the microenvironment to improve atherosclerotic drug ***,we provide an overview of the challenges and opportunities of applying these innovative nature-inspired nanocarriers.

关键词： nature-inspired nanocarriers drug delivery membrane-coating stimuli-responsive atherosclerosis

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Female Reproductive Cycles of Phrynocephalus przewalskii (Lacertilia:Agamidae) in the Tengger Desert,China

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Asian Herpetological Research 2011年第1期2卷 30-35页

作者： Wei ZHAO Nannan YU Yajuan WANG weihong ji Naifa LIU School of Life Sciences Lanzhou University Institute of Natural Sciences Massey UniversityPrivate Bag 102904North Shore Mail CentreAuckland 0745New Zealand

The timing of reproduction can significantly affect an offspring＇s fitness, thereby also influencing the fitness of the parents, especially in species inhabiting extreme environments, such as deserts. Female reproductive cycles in Phrynocephalus przewalskii were studied from April to September 2008. Significant cycles of gonadal volume were found in all studied populations and the cycles were similar among the various populations. Females began vitellogenesis in April and contained oviductal eggs form May to June. Gonad volume decreased significantly in July and reached minimum volume from August to September. The follicular growth was negatively correlated with increasing precipitation and temperature in all populations. Hatching occurs during summer and early fall, when most of the annual rainfall occurs. Mean clutch size based on all populations was 2.7 ± 0.9 SE （n = 71）.

关键词： Phrynocephalus przewalskii lizard gonad cycle liver cycle clutch size Tengger Desert

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