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薇甘菊在海南岛分布特征及其生长环境调查

热带农业科学 2024年第3期44卷 57-66页

作者：苟志辉王鑫曾亚红钟圣赟卢国鹏海南省林业科学研究院(海南省红树林研究院) 海南海口571100

为探究薇甘菊在海南岛的分布状况以及明确其在海南岛的生长环境条件,通过实地踏查,查阅相关文献,分析海南岛内薇甘菊的生活环境。结果显示:(1)海南岛有110个薇甘菊生长点,分别分布在海南省的18个市县,并呈现出北多南少的分布特征;(2)薇... 详细信息

为探究薇甘菊在海南岛的分布状况以及明确其在海南岛的生长环境条件,通过实地踏查,查阅相关文献,分析海南岛内薇甘菊的生活环境。结果显示:(1)海南岛有110个薇甘菊生长点,分别分布在海南省的18个市县,并呈现出北多南少的分布特征;(2)薇甘菊在低海拔的路边、林边和水边最为常见;(3)薇甘菊常伴随禾本科、菊科、豆科和天南星科植物出现。海南省的热带季风海洋性气候为薇甘菊的生长、繁殖提供了良好的环境,通过踏查研究可以明确海南岛薇甘菊分布现状,为薇甘菊在海南省的防控提供基础依据。

关键词：海南岛薇甘菊分布特征生长环境

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High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images

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International Journal of Digital Earth 2023年第1期16卷 825-846页

作者： Qi Zhu Huadong Guo lu Zhang Dong Liang Xuting Liu Heng Zhou Yiting gou Key Laboratory of Digital Earth Science Aerospace Information Research InstituteChinese Academy of SciencesBeijingPeople’s Republic of China International Research Center of Big Data for Sustainable Development Goals BeijingPeople’s Republic of China University of Chinese Academy of Sciences BeijingPeople’s Republic of China

Ice shelves play an essential role in the dynamics of the Antarctic ice *** surface meltwater is important,as it can irreversibly weaken ice shelves by exerting additional hydrostatic ***,high-resolution snowmelt products are urgently needed to accurately analyze melting patterns of ice shelves and further estimate mass *** this study,a new high-resolution(40 m)snowmelt dataset over all of the Antarctic Peninsula ice shelves larger than 100 km^(2) was developed based on the modified snowmelt detection framework by using a co-orbit normalization *** dataset provides detailed snowmelt information on each ice shelf,including the image coverage,melting area and melting ratio every 5 *** melting patterns of three typical ice shelves(George VI,Wilkins and Larsen C Ice Shelves)and the spatio-temporal melting distribution of the Antarctic Peninsula(AP)were further *** snowmelt information indicates that both the extent and duration of snowmelt have been increasing in the Antarctic Peninsula from 2015 to 2021,and we found that the snowmelt on the Antarctic Peninsula showed a spatial pattern of significantly intense snowmelt on the western *** believe this study will provide essential data for ice shelf investigation to support otherfields of polar research.

关键词： Surface snowmelt ice shelf sentinel-1 imagery Antarctic Peninsula high resolution

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PBL联合CBL教学法在眼科教学中的应用

中国继续医学教育 2024年第3期16卷 62-66页

作者：陈兴旺芶越李露任荟璇遵义医科大学附属医院眼科贵州遵义563000

目的分析以问题为基础的学习(problem-based learning,PBL)联合以案例为基础的学习(case-based learning,CBL)对眼科教学效果的影响。方法以2018年3月—2019年6月在遵义医科大学接受《眼科学》教学的100名临床医学专业本科学生为研究对... 详细信息

目的分析以问题为基础的学习(problem-based learning,PBL)联合以案例为基础的学习(case-based learning,CBL)对眼科教学效果的影响。方法以2018年3月—2019年6月在遵义医科大学接受《眼科学》教学的100名临床医学专业本科学生为研究对象,随机抽取接受CBL教学的学生50名,作为CBL组;抽取接受PBL联合CBL模式教学的学生50名,作为PBL联合CBL组。收集两组学生的眼科学试卷,对比两组学生眼科学考试成绩及主观题答题情况。结果CBL教学组平均成绩低于PBL联合CBL教学组平均成绩,差异有统计学意义(P<0.05)。CBL教学组总成绩略低于PBL联合CBL教学组,差异有统计学意义(P<0.05)。CBL教学组主观题分数低于PBL联合CBL教学组主观题,差异有统计学意义(P<0.05)。PBL联合CBL教学组主观题答题情况优于CBL教学组,差异有统计学意义(P<0.05)。结论PBL联合CBL教学法对眼科的临床教学有重大意义,值得参考。

关键词： PBL CBL 教学法主动学习眼科学教学效果

基于赢得值法的境外EPC工程项目监督管理实践

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项目管理技术 2024年第4期22卷 119-123页

作者：于成龙苟继军陈蓓卢嘉玲中国机械设备工程股份有限公司北京100073 北京普为海通软件技术有限公司北京100081

对项目进度和成本进行有效监督是境外EPC工程项目管理的重点和难点。当前,传统的项目监督管理模式已无法科学、合理、高效地评价境外EPC工程项目进度和成本的管理水平。通过梳理和分析当前境外EPC工程项目监督管理中存在的问题,基于赢... 详细信息

对项目进度和成本进行有效监督是境外EPC工程项目管理的重点和难点。当前,传统的项目监督管理模式已无法科学、合理、高效地评价境外EPC工程项目进度和成本的管理水平。通过梳理和分析当前境外EPC工程项目监督管理中存在的问题,基于赢得值法将项目进度和成本有效结合进行实时监控和预警,并通过实际案例对该方法应用效果进行验证,旨在提升境外EPC工程项目进度和成本管理水平。

关键词：赢得值法境外EPC工程项目监督管理进度和成本管控

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LED光源对柳圆叶甲成虫行为的影响

应用昆虫学报 2015年第4期52卷 983-992页

作者：冯国凤冯兴海邓倩文苟璐琛康浩然朱云龙付莉夏飞李晓娜涂小云江西师范大学生命科学学院南昌330022

【目的】探明LED光源对柳圆叶甲Plagiodera versicolora（Laicharting）成虫行为的影响，为城市亮化工程中害虫的预测预报或干扰其行为、控制其为害提供参考依据。【方法】在实验室条件下观察了6种LED光源（红光620～625nm、黄光580～58... 详细信息

【目的】探明LED光源对柳圆叶甲Plagiodera versicolora（Laicharting）成虫行为的影响，为城市亮化工程中害虫的预测预报或干扰其行为、控制其为害提供参考依据。【方法】在实验室条件下观察了6种LED光源（红光620～625nm、黄光580～585nm、蓝光465～467nm、绿光520～523nm、白光460～465nm和频闪）下柳圆叶甲成虫的行为。【结果】（1）在4d的节律行为观察中，雌或雄成虫不同光处理下暗时相活动频率差异均不显著，但在12h暗期：12h光期和12h白光：12h光期处理下雌成虫活动高峰在中午、12h黄光：12h光期和12h绿光：12h光期下均在18：00--19：00、其余处理下均在上午；12h黄光：12h光期和12h蓝光：12h光期处理下雄成虫活动高峰分别是18：00--19：00和08：00-09：00，其余活动高峰均在11：00-12：00；同一光照条件下，雌雄成虫在暗时相的活动频率差异均不显著。（2）在3h的连续行为观察中，雌成虫各行为发生率在不同光处理问差异不显著，而雄成虫的爬行、休息和展翅发生率在不同光处理间则有显著差异；同一光照条件下，雌或雄成虫爬行和休息行为发生率高于其他行为发生率。雌虫以白光下休息时间分配率最高、绿光下最低；雄虫以绿光下爬行时间分配率最低、黄光下休息时间分配率最高；同一光照条件下的同一种行为发生率和时间分配在两性问也有差异。【结论】LED光源对柳圆叶甲成虫行为有影响，但因LED光源颜色（波段）及性别、自身行为种类不同而异。

关键词：柳圆叶甲行为发光二极管

Bioceramic scaffolds with triply periodic minimal surface architectures guide early-stage bone regeneration

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Bioactive Materials 2023年第7期25卷 374-386页

作者： Miaoda Shen Yifan Li Fengling lu Yahui gou Cheng Zhong Shukun He Chenchen Zhao Guojing Yang Lei Zhang Xianyan Yang Zhongru gou Sanzhong Xu Department of Orthopedics The First Affiliated HospitalZhejiang University School of MedicineHangzhou310003China Bio-nanomaterials and Regenerative Medicine Research Division Zhejiang-California International Nanosystem InstituteZhejiang UniversityHangzhou310058China Zhejiang University-University of Edinburgh Institute Zhejiang UniversityHaining314499China Department of Orthopaedics The Third Hospital Affiliated to Wenzhou Medical University&Rui’an People’s HospitalRui’an325200China Department of Orthopaedics The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000China

The pore architecture of porous scaffolds is a critical factor in osteogenesis,but it is a challenge to precisely configure strut-based scaffolds because of the inevitable filament corner and pore geometry *** study provides a pore architecture tailoring strategy in which a series of Mg-doped wollastonite scaffolds with fully interconnected pore networks and curved pore architectures called triply periodic minimal surfaces(TPMS),which are similar to cancellous bone,are fabricated by a digital light processing *** sheet-TPMS pore geometries(s-Diamond,s-Gyroid)contribute to a 3‒4-fold higher initial compressive strength and 20%-40%faster Mg-ion-release rate compared to the other-TPMS scaffolds,including Diamond,Gyroid,and the Schoen’s I-graph-Wrapped Package(IWP)in ***,we found that Gyroid and Diamond pore scaffolds can significantly induce osteogenic differentiation of bone marrow mesenchymal stem cells(BMSCs).Analyses of rabbit experiments in vivo show that the regeneration of bone tissue in the sheet-TPMS pore geometry is delayed;on the other hand,Diamond and Gyroid pore scaffolds show notable neo-bone tissue in the center pore regions during the early stages(3-5 weeks)and the bone tissue uniformly fills the whole porous network after 7 ***,the design methods in this study provide an important perspective for optimizing the pore architecture design of bioceramic scaffolds to accelerate the rate of osteogenesis and promote the clinical translation of bioceramic scaffolds in the repair of bone defects.

关键词： Pore geometry Bone regeneration efficiency Triply periodic minimal surface Biodegradable bioceramics Tissue engineering

Cloning of Promoter of Chinese Bean GRP 1.8 Gene and Characterization of Its Function in Transgenic Tobacco Plants

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Chemical Research in Chinese Universities 2002年第3期18卷 290-293页

作者： lu Hai JIANG Xiang ning LI Feng lan ZENG Qing yin LIU Wei gou Xiao jun Experimental Center of Forest Biology College of Plant SciencesBeijing Forestry UniversityBeijing 100083P.R.China Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin UniversityChangchun 130023P.R.China

In order to learn the expression pattern of GRP1 8(glycine rich protein) gene promoter in transgenic plants and to explore its potential application in plant genetic engineering for vascular specific expression of interested genes, GRP 1 8 promoter was amplified by PCR from Chinese bean genomic DNA. The intermediate vector was constructed by inserting vascular specific expression promoter of GRP 1 8 gene in vector pBI 101. The regenerated tobacco plants obtained were analyzed by PCR to select the putative transgenic plants. The histochemical localization of GUS( β D glucosidase) activity indicates that as for that of GRP 1 8 promoter we can confer the vascular specific expression of GUS gene.

关键词： Chinese Bean Promoter of GRP 1 8 gene Transgenic tobacco plants

Adsorption and desorption behavior under coal–water–gas coupling conditions of high- and low-rank coal samples

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Frontiers of Earth Science 2023年第1期17卷 145-157页

作者： Chen GUO Jiang gou Dongmin MA Yuan BAO Qingmin SHI Jiahao MENG Junzhe GAO Lingling lu College of Geology and Environment Xi’an University of Science and TechnologyXi’an 710054China Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation Xi’an 710054China Geological Research Institute for Coal Green Mining Xi’an University of Science and TechnologyXi’an 710054China Aerophoto Grammetry and Remote Sensing Bureau China National Administration of Coal GeologyXi’an 710100China

High-and low-rank coalbed methane(CBM)are both important fields of CBM development in China,but their formation and production mechanisms differ *** adsorption/desorption behavior of high-and low-rank coals under the coupling of coal–water–gas was investigated using two series of *** samples from Zhangjiamao(ZJM)coal mine,Ordos basin,and Sihe(SH)coal mine,Qinshui basin,were tested by isothermal adsorption–desorption experiment,natural imbibition experiment,nuclear magnetic resonance,mercury injection porosimetry,contact angle test,and permeability *** adsorption and desorption experiments under dry,equilibrium water,and saturated water,were performed to explore the differences between the adsorption and desorption *** results show that the wettability and permeability of the ZJM low-rank coal sample was considerably higher than that of the SH high-rank coal *** imbibition process of the ZJM sample exhibited a high imbibition rate and high total-imbibition volume,whereas the SH sample exhibited a slow imbibition rate and low total-imbibition *** ZJM sample had a complex pore structure and diverse pore-size distribution with a lower mercury withdrawal efficiency at 59.60%,whereas the SH sample had a relatively uniform pore-size distribution with a higher mercury withdrawal efficiency at 97.62%.The response of adsorption and desorption of the ZJM sample to water was more significant than that of the SH *** desorption hysteresis of the ZJM sample was stronger than that of the SH sample and was more prominently affected by water,which was consistent with its strong wettability and complex pore-throat configuration.A comprehensive adsorption and desorption mode was constructed for high-and low-rank coal samples under coal–water–gas coupling *** research results are important to enrich the geological theory of high-and low-rank CBM and to guide efficient CBM recovery.

关键词： coalbed methane adsorption-desorption desorption hysteresis wettability pore structure coal-water-gas coupling

基于生物信息学探索宫颈癌远处转移的相关基因分析

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甘肃医药 2024年第9期43卷 792-797页

作者：苟彩霞卢亚琼赵晶张春林任锦霞甘肃省肿瘤医院甘肃兰州730050

目的:使用生物信息学的方法,鉴别出与宫颈癌远处转移相关的潜在生物学标记物,并对其机制进行研究。方法:使用R语言分析,利用TCGA数据库,挖掘出宫颈癌远处转移患者与非远处转移患者之间的差异表达基因集,进一步筛选出两组基因集的共差异... 详细信息

目的:使用生物信息学的方法,鉴别出与宫颈癌远处转移相关的潜在生物学标记物,并对其机制进行研究。方法:使用R语言分析,利用TCGA数据库,挖掘出宫颈癌远处转移患者与非远处转移患者之间的差异表达基因集,进一步筛选出两组基因集的共差异表达基因,对这些共差异表达基因进行基因本体(GO)和京都基因与基因组百科全书途径富集(KEGG)分析,构建蛋白质-蛋白质交互(PPI)网络,并使用cytoscape软件进行分析,使用cytoHubba插件计算出前10位的关键基因。然后对筛选出的基因进行诊断分析及生存分析。结果:本研究共获得415个与宫颈癌远处转移相关的差异表达基因(DEGs),上调的差异表达基因主要富集在“表皮的发育”“皮肤的形成”“角化细胞的分化”“上皮细胞的分化”,下调差异表达基因主要富集在“胚胎器官的发育”“消化系统发育;消化道发育;上皮管道形态发生”等分子功能。差异表达基因主要参与到“P53信号通路”“Wnt信号通路”“病毒蛋白的相互作用”“细胞因子和受体”“甲状腺癌”等。计算出位于前十的中枢基因,分别为:DSG3、SPRR1B、IVL、PKP1、DSC3、KRT6B、SPRR1A、KRT6A、KRT16、SPRR3。并进行生存分析,结果发现:SPRR1B/SPRR1A,SPRR3,DSC3/DSG3的表达与宫颈癌的生存表现出明显的统计学意义。结论:使用生物信息学方法,可以获得与宫颈癌远处转移相关的基因,并筛选出中枢基因,为进一步研究宫颈癌远处转移的分子机制提供参考。

关键词：宫颈癌远处转移差异表达基因生物信息学分析