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Investigation on the Deformation and Failure Patterns of Loess Cut Slope Based on the Unsaturated Triaxial Test in Yan'an,China

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Journal of Earth Science 2024年第1期35卷 235-247页

作者： lina ma Shengwen Qi Songfeng Guo Qiangbing Huang Xiaokun Hou Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China Department of Geological Engineering Chang'an UniversityXi'an 710054China

The large-scale implementation of the Gully Stabilization and Land Reclamation(GSLR)project induces various failures of loess slopes due to excavation in Yan'an,***,the deformation and failure behavior of these excavated loess slopes have not been fully *** this study,field investigation was undertaken for analyzing the distributions and failure features of excavation-induced loess slope *** is found that plastic failure mainly occurs in Q_(3) loess layers and brittle failure in Q_(2).To understand the underlying failure mechanism,a series of triaxial shear tests were conducted on intact Q_(3) and Q_(2) loess samples that with different water contents,namely natural water content(natural),dry side of the natural value(drying 5%),and wet side(wetting 5%).The characteristics of stress-strain curves and failure modes of the samples were *** show that the stress-strain curves of Q_(2) samples are dominated by strain-softening characteristics,while Q_(3) samples mainly exhibit strain-harden features except in the drying ***,shear failures of Q_(3) specimens are mainly caused by shear crack planes(single,X or V-shaped).For Q_(2) loess,the dominance of tensile cracks is observed on the surface of damaged *** disclose the different failure modes of excavated slopes located in different strata,that is,the arc sliding failure of Q_(3) loess slopes and the stepped tensile failure of Q_(2) loess slopes,and are helpful in the design and management of the ongoing GSLR projects in the Loess Plateau.

关键词： loess slope slope stability failure patterns deformation

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Professional Development of Rural PE Teachers from the Perspective of PCK:A Case Study of Huaiji County

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Meteorological and Environmental Research 2024年第1期15卷 57-61,66页

作者： lina ma manhua HE School of Physical Education and Health Zhaoqing UniversityZhaoqing 526061China Guangning Middle School Zhaoqing 526061China

Based on the four dimensions of PCK,this paper investigates the professional development of rural PE teachers in Huaiji County by using the research methods of literature,questionnaire,interview and mathematical *** on PCK related theories,this paper analyzes the current situation of professional development of rural PE teachers in Huaiji County,explores the problems existing in the process of professional development,and provides an optimal path for the professional development of rural PE teachers,so as to improve the teaching ability and classroom quality of rural PE teachers,and promote the further development of rural PE education under the background of new curriculum *** the research,it is found that the shortcomings of rural PE teachers are:lack of situational knowledge;lack of understanding of the course content;not flexible use of teaching representation;low ability to identify the differences of students learning styles;lack of understanding of social environment,etc.

关键词： PCK Rural PE teacher Professional development

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Exploration of the Integration of Curriculum Ideology and Politics into the Educational Pathway of Standardized Training for General Practice Residents

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Journal of Contemporary Educational Research 2024年第5期8卷 91-96页

作者： Zhuan Huang Yaodong Li lina ma Rui Xu Fang Yang Yingpeng Shi Junlin Liu The First Affiliated Hospital of Xi’an Medical University Xi’an 710077Shaanxi ProvinceChina School of Foreign Languages Xi’an Medical UniversityXi’an 710077Shaanxi ProvinceChina

In recent years,the national higher education reform has proposed the concept of curriculum ideological and political education as a major *** integration into the standardized training of general practice residents(commonly referred to as general resident training)is an unavoidable trend in the teaching *** on the actual situation of our unit at The First Affiliated Hospital of Xi’an Medical University,this paper emphasizes the necessity of incorporating ideological and political education into the general resident training curriculum,despite the absence of pertinent practical experience in how to effectively incorporate such courses into comprehensive residential *** our hospital,we must assess the ideological and political education in the curriculum of general resident training,proposing a scientific,reasonable ideological and political education concept system for general practice courses,integrating ideological and political education with general practice resident training,and strengthening the team of ideological and political education physicians to teach them to carry out such education,this would foster enthusiasm and *** admission education and training for general practice resident training,as well as regularly hosting symposiums to share ideas and understand the mission of doctors can provide effective experience for ideological and political education in general resident training courses.

关键词： Curriculum ideological and political education General practice General practice residents Standardized training Education path Exploration

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Application of Sargassum fusiforme(Harv.)*** in Cigarettes

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Agricultural Biotechnology 2024年第1期13卷 49-50,65页

作者： Juanjuan LI Jing SHAN Xianyan RAO lina ma Weichuan WANG Mingyue ZHAO Youchi HU China Tobacco Guangdong Industrial Co. Ltd.Guangzhou 510385China Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001China

[Objectives]This study was conducted to investigate the application of Sargassum fusiforme(Harv.)*** cigarettes.[Methods]Tobacco-specific nitrosamines in the smoke of cigarettes added with ethanol extract of *** were determined,and the compounds related to the aroma of *** were identified by flavor-smelling experiment.[Results]With the addition of the ethanol extract of ***,the decrease in the total amount of four tobacco-specific nitrosamines in mainstream cigarette smoke reached 16.42%.The results of the flavor-smelling experiment showed that the aroma of *** might be related to(R)-5,6,7,7A-tetrahydro-4,4,7A-trimethyl-2(4H)-benzofuranone,glycerol,ethyl palmitate,methyl palmitate,ethyl linoleate,methyl(Z,Z,Z)-9,12,15-octadecatrienoate,ethyl(Z,Z,Z)-9,12,15-octadecatrienoate,phytol,and tetradecanoic acid.[Conclusions]The ethanol extract of *** has the potential function of reducing the content of tobacco-specific nitrosamines in smoke and improving the taste of cigarettes.

关键词： Sargassum fusiforme(Harv.)Setch. Tobacco-specific nitrosamines(TSNAs) Flavor smelling

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Plant genomic resources at National Genomics Data Center:assisting in data-driven breeding applications

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aBIOTECH 2024年第1期5卷 94-106页

作者： Dongmei Tian Tianyi Xu Hailong Kang Hong Luo Yanqing Wang Meili Chen Rujiao Li lina ma Zhonghuang Wang Lili Hao Bixia Tang Dong Zou Jingfa Xiao Wenming Zhao Yiming Bao Zhang Zhang Shuhui Song National Genomics Data Center Beijing Institute of GenomicsChinese Academy of Sciences&China National Center for BioinformationBeijing 100101China CAS Key Laboratory of Genome Sciences and Information Beijing Institute of GenomicsChinese Academy of Sciences&China National Center for BioinformationBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Genomic data serve as an invaluable resource for unraveling the intricacies of the higher plant systems,including the constituent elements within and among *** various efforts in genomic data archiving,integrative analysis and value-added curation,the National Genomics Data Center(NGDC),which is a part of the China National Center for Bioinformation(CNCB),has successfully established and currently maintains a vast amount of database *** dedicated initiative of the NGDC facilitates a data-rich ecosystem that greatly strengthens and supports genomic research ***,we present a comprehensive overview of central repositories dedicated to archiving,presenting,and sharing plant omics data,introduce knowledgebases focused on variants or gene-based functional insights,highlight species-specific multiple omics database resources,and briefly review the online application *** intend that this review can be used as a guide map for plant researchers wishing to select effective data resources from the NGDC for their specific areas of study.

关键词： Plant-omics data Data repositories Data integration Knowledgebase Plant genomics

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轻度认知功能障碍与肌少症相关性

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中华老年医学杂志 2024年第5期43卷 572-576页

作者：邢怡文马丽娜首都医科大学宣武医院老年医学科国家老年疾病临床研究中心北京100053

轻度认知功能障碍(MCI)是介于正常认知水平和痴呆的一种异常的中间状态,肌少症是一类进行性和广泛性的骨骼肌疾病,可能增加老年人跌倒、骨折、衰弱等不良结果的发生。认知功能障碍及肌少症均属于较为常见的老年综合征。近年有研究发现,... 详细信息

轻度认知功能障碍(MCI)是介于正常认知水平和痴呆的一种异常的中间状态,肌少症是一类进行性和广泛性的骨骼肌疾病,可能增加老年人跌倒、骨折、衰弱等不良结果的发生。认知功能障碍及肌少症均属于较为常见的老年综合征。近年有研究发现,肌少症的存在可能增加认知功能障碍的发生。本文将从流行病学特征、诊断、轻度认知功能障碍与肌少症之间的可能关联以及两者间可能存在的作用机制进行论述。

关键词：轻度认知功能障碍肌少症老年综合征

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白花蛇舌草提取物通过AMPK/ATG5信号通路对急性胰腺炎大鼠肺损伤的保护作用机制研究

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中国免疫学杂志 2024年第2期40卷 348-354页

作者：哈宗兰马丽娜马琼甘桂芬青海大学附属医院重症医学科西宁810000 青海大学附属医院放射科西宁810000

目的:通过5’-单磷酸腺苷活化蛋白激酶(AMPK)/自噬相关蛋白5(ATG5)信号通路,探讨白花蛇舌草提取物减轻急性胰腺炎(AP)大鼠肺损伤的机制。方法:建立AP肺损伤大鼠模型,随机分为模型组、提取物(白花蛇舌草提取物)组、3-ma(自噬抑制剂3-甲... 详细信息

目的:通过5’-单磷酸腺苷活化蛋白激酶(AMPK)/自噬相关蛋白5(ATG5)信号通路,探讨白花蛇舌草提取物减轻急性胰腺炎(AP)大鼠肺损伤的机制。方法:建立AP肺损伤大鼠模型,随机分为模型组、提取物(白花蛇舌草提取物)组、3-ma(自噬抑制剂3-甲基腺嘌呤)组、AICAR(AMPK激活剂)组、提取物+AICAR组,每组15只,另取15只大鼠作为假手术组;ELISA检测血清淀粉酶(AMY)、IL-1β、IL-6、IL-18水平;检测大鼠腹水量及肺湿/干重比(W/D);HE观察胰腺及肺组织病理损伤;Western blot检测溶酶体相关膜蛋白2(LAMP2)、自噬底物p62、IL-1β前体蛋白(pro-IL-1β)、胰蛋白酶原活化肽(TAP)、AMPK、p-AMPK、ATG5、自噬标志物LC3-Ⅱ/Ⅰ、泛素特异性蛋白酶10(UPS10)表达。结果:与假手术组相比,模型组大鼠腹水量、肺W/D、胰腺和肺组织病理损伤评分、血清AMY、IL-1β、IL-6、IL-18水平、胰腺组织p62、TAP、pro-IL-1β表达、肺组织pAMPK/AMPK、ATG5、LC3-Ⅱ/Ⅰ、UPS10、pro-IL-1β表达均升高(Pma干预后,上述指标均得到显著改善(Pma(P<0.05);而AMPK激活剂AICAR可削弱白花蛇舌草提取物对AP大鼠肺损伤的改善作用(P<0.05)。结论:白花蛇舌草提取物可通过抑制AMPK/ATG5信号通路减轻炎症反应、降低自噬水平改善AP大鼠肺损伤。

关键词：白花蛇舌草提取物胰腺炎肺损伤 5’-单磷酸腺苷活化蛋白激酶自噬相关蛋白5 炎症-自噬

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加拿大衰弱老年人营养与体育锻炼临床实践指南解读

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中华老年医学杂志 2024年第6期43卷 675-680页

作者：李晓珺刘盼马丽娜首都医科大学宣武医院老年医学科北京100053 国家老年疾病临床研究中心北京100053

加拿大学者2021年底制定了《衰弱老年人营养与体育锻炼临床实践指南》,为医疗保健专业人员通过营养和体育锻炼干预对衰弱和衰弱前期老年人进行有效管理提供循证建议。本文将对该指南进行解读,以期为我国在临床实践中开展衰弱老年人营养... 详细信息

加拿大学者2021年底制定了《衰弱老年人营养与体育锻炼临床实践指南》,为医疗保健专业人员通过营养和体育锻炼干预对衰弱和衰弱前期老年人进行有效管理提供循证建议。本文将对该指南进行解读,以期为我国在临床实践中开展衰弱老年人营养与体育锻炼的管理提供借鉴和指导。

关键词：衰老营养状况衰弱身体锻炼指南

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广宗寺“歌舞会供表演仪式”考察与内蒙古草原文化“在地化”的渗入与发展

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内蒙古艺术学院学报 2024年第1期21卷 5-12页

作者：马丽娜内蒙古艺术学院内蒙古呼和浩特010010

藏传佛教在蒙古高原传播的过程中,为适应蒙古民族独特的人文氛围和地理环境,在藏传佛教寺院的基础建设、法会仪式、文化表达等方面做了一定的调整。本文以内蒙古阿拉善广宗寺“歌舞会供表演仪式”为调研分析个案,通过对该表演仪式中诵... 详细信息

藏传佛教在蒙古高原传播的过程中,为适应蒙古民族独特的人文氛围和地理环境,在藏传佛教寺院的基础建设、法会仪式、文化表达等方面做了一定的调整。本文以内蒙古阿拉善广宗寺“歌舞会供表演仪式”为调研分析个案,通过对该表演仪式中诵经音乐结构的分析,探究内蒙古地区藏传佛教诵经音乐中所融入的蒙古族音乐文化元素,从而阐释广宗寺“歌舞会供表演仪式”在内蒙古草原上的“在地化”现象。研究发现,藏传佛教寺院乐舞仪式已经成为当地蒙古族信仰的重要载体,在蒙藏文化融合发展的过程中起到了积极的作用。

关键词：广宗寺歌舞会供表演仪式诵经音乐蒙藏文化融合

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日藏古字书《音训篇立》及其价值研究

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辞书研究 2024年第4期 66-75页

作者：马丽娜中国人民大学文学院北京100872

《音训篇立》是室町时代末期日本人以《字镜》为基础,参考中国其他古字书及注疏等材料改编而成的汉字与假名混合字书。作者不详。全书由“天、地、人”三卷构成,按部首排列,共215篇。其中“人”卷中册亡佚,故现存198篇,凡1.4万余条。它... 详细信息

《音训篇立》是室町时代末期日本人以《字镜》为基础,参考中国其他古字书及注疏等材料改编而成的汉字与假名混合字书。作者不详。全书由“天、地、人”三卷构成,按部首排列,共215篇。其中“人”卷中册亡佚,故现存198篇,凡1.4万余条。它收录了多样的字形,丰富的释义和宝贵的注音材料,不仅是日本中世时期重要的字书典籍,也是汉语史研究的珍贵材料,在语言文字、辞书编撰及文献学研究等方面具有很高的研究价值。

关键词：音训篇立字形字义音注日藏古字书

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