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Journal of Contemporary Educational Research 2024年第9期8卷 112-119页

作者： Qinxian Chen xuanxuan zhong Xinyi Liu School of Foreign Languages Tibet UniversityLhasa 850000Xizang Autonomous RegionChina

With the continuous advancement of education informatization,Technological Pedagogical Content Knowledge(TPACK),as a new theoretical framework,provides a novel method for measuring teachers’informatization teaching *** study takes normal students of English majors from three ethnic universities as the research object,collects relevant data through questionnaires,and uses structural equation modeling to conduct data analysis and empirical research to investigate the differences in the TPACK levels of these students at different grades and the structural relationships among the elements in the TPACK *** technological pedagogical knowledge element of the TPACK structure was not obtained by exploratory factors analysis but through path analysis and structural equation modeling,the results show that the one-dimensional core knowledge of technological knowledge(TK),content knowledge(CK),and pedagogical knowledge(PK)have a positive effect on the two-dimensional interaction knowledge of technological content knowledge(TCK)and pedagogical content knowledge(PCK);furthermore,TCK and PCK have a positive effect on TPACK;and TK,CK,and PK indirectly affect TPACK through TCK and *** this basis,suggestions are provided to ethnic colleges and universities to develop the TPACK knowledge competence of normal students of English majors.

关键词： TPACK Ethnic colleges and universities Normal students of English major Structural equation modeling

Research on Enhancing Students’Intercultural Awareness and Competence in English Teaching

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Journal of Contemporary Educational Research 2024年第7期8卷 316-322页

作者： xuanxuan zhong Xinyi Liu Qinxian Chen School of Foreign Languages Tibet UniversityLhasa 850000Xizang Autonomous RegionChina

With the deepening of globalization,intercultural communication has become an important part of people’s daily lives and ***,as an international language,plays a vital role in intercultural ***,simple language knowledge can no longer meet the needs of modern *** need to have intercultural awareness and competence to better adapt to the development of ***,it is particularly important to improve students’intercultural awareness and competence in English *** paper will discuss how to improve students’intercultural awareness and competence in English teaching,which includes three *** first part introduces the definition of intercultural awareness and *** second part explores the importance of intercultural awareness and competence to students,which can help students better understand and respect different cultures,stimulate students’innovative thinking and creativity,and cultivate critical thinking skills,and is also of great significance to students’professional development,personal growth,and social *** third part discusses the effective methods and strategies to improve students’intercultural awareness and competence in teaching,including carrying out cultural discussion and debate,introducing diverse materials,creating intercultural experience teaching activities,and using virtual learning *** a certain extent,this study can enrich the theoretical research in the field of intercultural awareness and competence,help to improve students’intercultural awareness and competence,and provide certain practical guidance for educators to teach intercultural courses.

关键词： Intercultural awareness Intercultural competence English teaching

Sandpaper-templated Stretchable Immunosensing Electrodes for Sub-picomolar Progesterone Detection

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Chemical Research in Chinese Universities 2024年第5期40卷 874-880页

作者： LI Zhaoxian MENG Xingyu FANG Chuyao YI Zhenkai WU Yaoyao LIU xuanxuan zhong Wei ZHANG Limei XIE Zhuang School of Materials Science and Engineering Key Laboratory for Polymeric Composite and Functional Materials of Ministry of EducationSun Yat-sen UniversityGuangzhou510275P.R.China Reproductive Medicine Center Department of Obstetrics and Gynecologythe First Affiliated Hospital of Sun Yat-sen UniversityGuangzhou510080P.R.China

Female hormone detection,particularly non-invasive monitoring progesterone(P4)levels in body fluids,plays a critical role in female health management and disease ***,the challenge still exists because of the ultralow abundance of P4(<100 pmol/L)in sweat and saliva,necessitating highly sensitive methods for wearable ***,we present a simple sandpaper-templated stretchable immunosensing electrode designed for ultra-sensitive detection of P4 at sub-picomolar level.A molding technique is employed to replicate the sandpaper textures to provide a microstructured elastomeric substrate for electrode *** microstructured surface coated with poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate)(PEDOT:PSS)/LiTFSI[LiTFSI=lithium bis(trifluoromethanesulfonyl)imide]provided a stretchable polymer electrode with high conductivity,and further decoration with gold nanoparticles(AuNPs)enabled the immunosensing for P4 by electrochemical impedance spectroscopy(EIS)*** adjusting the AuNPs deposition conditions,ultrasensitive detection of P4 is realized with a low limit of detection(LOD)of ca.10 fmol/L and a tunable dynamic range up toµmol/***,the stretchable electrode exhibits stable electrochemical performance,enabling the detection of P4 at sub-picomolar levels even under mechanical strain of 30%.This innovative electrochemical sensor holds significant promise for non-invasive,on-site monitoring of P4 levels in healthcare,as well as hormone detection in food safety and environment surveillance.

关键词： Progesterone Immunosensor Microstructured electrode Stretchable biosensor Electrochemical sensing

Global analysis of lysine succinylation in patchouli plant leaves

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Horticulture Research 2019年第1期6卷 31-43页

作者： Xiaobing Wang Xiuzhen Chen Junren Li xuanxuan Zhou Yanting Liu Liting zhong Yun Tang Hai Zheng Jiyun Liu Ruoting Zhan Likai Chen Research Center of Chinese Herbal Resource Science and Engineering Guangzhou University of Chinese MedicineKey Laboratory of Chinese Medicinal Resource from Lingnan(Guangzhou University of Chinese Medicine)Ministry of EducationJoint Laboratory of National Engineering Research Center for the Pharmaceutics of Traditional Chinese MedicinesGuangzhouGuangdong 510006P.R.China Guangdong Institute of Traditional Chinese Medicine GuangzhouGuangdong 510520P.R.China Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems College of the Environment and EcologyXiamen UniversityXiamenFujian 361005P.R.China

Lysine succinylation is a novel,naturally occurring posttranslational modification(PTM)in living *** lysine succinylation identification has been performed at the proteomic level in various species;however,the study of lysine succinylation in plant species is relatively *** plant(***(Blanco)Benth.,Lamiaceae)is a globally important industrial plant and medicinal *** the present study,lysine succinylome analysis was carried out in patchouli plants to determine the potential regulatory role of lysine succinylation in patchouli growth,development,and *** global succinylation sites and proteins in patchouli plants were screened with an immunoprecipitation affinity enrichment technique and advanced mass spectrometry-based *** bioinformatic analyses,such as function classification and enrichment,subcellular location predication,metabolic pathway enrichment and protein−protein interaction networking,were conducted to characterize the functions of the identified sites and *** total,1097 succinylation sites in 493 proteins were detected in patchouli plants,among which 466 succinylation sites in 241 proteins were repeatedly identified within three independent *** functional characterization of these proteins indicated that the tricarboxylic acid(TCA)cycle,oxidative phosphorylation,photosynthesis processes,and amino acid biosynthesis may be regulated by lysine *** addition,these succinylated proteins showed a wide subcellular location distribution,although the chloroplast and cytoplasm were the top two preferred cellular *** study suggested the important role of lysine succinylation in patchouli plant physiology and biology and could serve as a useful reference for succinylation studies in other medicinal plants.

关键词： patch analysis Global

细针型共聚焦激光显微内镜在胰腺囊性病变中应用的研究进展

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胃肠病学 2018年第12期23卷 705-710页

作者：李璇璇狄扬郝思介金忱钟良复旦大学附属华山医院消化内科 200040 复旦大学附属华山医院胰腺外科 200040

随着诊断技术的进步,近年来胰腺囊性病变(PCLs)的检出率逐渐升高,但其鉴别诊断一直是临床难点,误诊将给患者带来不必要的手术风险或影响预后。PCLs现有的诊断依据主要是临床表现、影像学检查、囊液分析等。内镜超声引导下细针型共聚焦... 详细信息

随着诊断技术的进步,近年来胰腺囊性病变(PCLs)的检出率逐渐升高,但其鉴别诊断一直是临床难点,误诊将给患者带来不必要的手术风险或影响预后。PCLs现有的诊断依据主要是临床表现、影像学检查、囊液分析等。内镜超声引导下细针型共聚焦激光显微内镜(EUS-nCLE)可实现对PCLs的实时体内组织学观察,目前研究已证明其可行性和优越性。本文对n CLE在PCLs中应用的研究进展作一概述。

关键词：胰腺囊性病变内镜超声活组织检查,细针共聚焦激光显微内镜诊断,鉴别

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《中药鉴定学》无纸化实验教学平台的构建

亚太传统医药 2023年第12期19卷 252-255页

作者：程轩轩李钟广东药科大学中药学院广东广州510006

《中药鉴定学》是一门实践性很强的专业课程,其核心内容是中药的真伪鉴别与品质评价。实验课是《中药鉴定学》课程的重要组成部分,对于学生巩固理论知识、掌握实验技能、提升综合素质、培养创新能力发挥着关键性作用。为了适应信息时代... 详细信息

《中药鉴定学》是一门实践性很强的专业课程,其核心内容是中药的真伪鉴别与品质评价。实验课是《中药鉴定学》课程的重要组成部分,对于学生巩固理论知识、掌握实验技能、提升综合素质、培养创新能力发挥着关键性作用。为了适应信息时代的教学需求,贯彻落实教育部相关文件精神,通过显微数码互动系统、虚拟仿真实验教学平台等智能化教学设备,采用学习通、雨课堂、微信群等智慧教学工具,基于超星泛雅平台构建了《中药鉴定学》无纸化实验教学平台,实施课前、课中、课后三环联动,最终实现高效教学。

关键词：中药鉴定学实验教学无纸化管理智慧教学

高考跨学科命题透视:特点、问题与改进建议——基于对2016-2023年210份全国卷的分析

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现代远程教育研究 2024年第3期36卷 74-86页

作者：詹泽慧钟煊妍邹萱萱陈利高瑞翔华南师范大学教育信息技术学院广东广州510631 华南师范大学心理应用研究中心广东广州510631

高考作为衡量学生学业水平的权威性高利害考试,是我国人才培养的重要指挥棒和风向标。新课标和新高考改革明确强调问题导向、学科融合的基本取向,对跨学科命题提出了新要求。为了把握高考跨学科命题的总体概况,有必要基于高考全国试卷... 详细信息

高考作为衡量学生学业水平的权威性高利害考试,是我国人才培养的重要指挥棒和风向标。新课标和新高考改革明确强调问题导向、学科融合的基本取向,对跨学科命题提出了新要求。为了把握高考跨学科命题的总体概况,有必要基于高考全国试卷对其跨学科命题进行深入分析。通过对2016—2023年共210份高考全国卷中的跨学科试题所考查的学科知识内容、核心素养水平、问题情境等进行编码分析发现:当前我国高考跨学科试题数量约占总题量的10%,与新课标所要求的课时比例相匹配;跨学科命题整体呈现出能力本位、问题开放、形式多样的特点,但仍然存在文理内部组合远多于文理交叉组合,学科融合程度不够高,学科核心素养的组合方式相对固定且频次分布不均衡,学科核心素养考查水平不高等问题。未来高考跨学科命题应从学科知识锚定、学科融合水平提升和核心素养考查三个方面进行综合考量,并不断提升命题质量。具体而言,可通过增强试题的情境化创设,突出不同学科之间的交叉关联点,以命制文理交叉的跨学科试题;可通过提炼跨学科大概念,并提供相应的引导和提示,以命制超学科融合水平的试题;还可通过构建核心素养所对应的学科知识体系,并与相关学科建立情境关联,以命制素养导向的跨学科试题。

关键词：高考核心素养跨学科命题学科融合创新人才培养

以评促教:基于事理图谱的计算思维水平评价方法

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现代远距离教育 2024年第1期 45-57页

作者：詹泽慧钟煊妍邹萱萱骆丽霞华南师范大学广东广州510631

计算思维是人工智能时代教育发展的核心目标,而监测计算思维状况、评价计算思维水平并据此提出计算思维培养的教学策略是当前“教-学-评”一体化教学改革下实现计算思维培养的重要路径。然而,由于计算思维的复杂性、抽象性和过程性,教... 详细信息

计算思维是人工智能时代教育发展的核心目标,而监测计算思维状况、评价计算思维水平并据此提出计算思维培养的教学策略是当前“教-学-评”一体化教学改革下实现计算思维培养的重要路径。然而,由于计算思维的复杂性、抽象性和过程性,教师往往难以全面掌握和准确评价学生计算思维应用过程,更难以个性化了解学生的计算思维发展状况并据此提出教学干预策略。为此,从测评的视角出发,基于计算思维的本质内涵,结合新兴的事理图谱概念,构建基于事理图谱的计算思维评价方式。首先,设计面向计算思维的事件编码框架,利用iBCM算法实现事件关系抽取,生成事理图谱。然后,利用随机森林根据事理图谱对计算思维水平进行分类,并采用基于规则的事理图谱优化方法,完善iBCM提取出的特征模式,生成可视化的事理图谱辅助教学策略的调整与个性化的指导。基于此方法开展的实证研究表明,设计的模型在各项指标上都具有良好的性能效果。其结合了事理图谱所具备的事件逻辑深层次分析与推理的优势,为理解学习者的思维过程、抽取思维特征、探究思维模式提供了支撑和条件,助力教师培养学习者的计算思维提供路径指导。

关键词：以评促教事理图谱计算思维评价方法

含V型缺口钛合金圆棒拉伸过程声发射特性研究

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锻压技术 2024年第2期49卷 247-254页

作者：钟斌杨会强轩轩于正洋赵升吨西安科技大学机械工程学院陕西西安710054 西安交通大学机械工程学院陕西西安710049

采用声发射无损检测技术对含环状V型缺口TC4钛合金试样的匀速拉伸过程进行监测,探讨了含不同V型缺口的TC4钛合金试样在拉伸过程中不同变形阶段对钛合金声发射特征参数的影响。结果表明:声发射信号的分布情况与拉伸过程中的每个阶段相对... 详细信息

采用声发射无损检测技术对含环状V型缺口TC4钛合金试样的匀速拉伸过程进行监测,探讨了含不同V型缺口的TC4钛合金试样在拉伸过程中不同变形阶段对钛合金声发射特征参数的影响。结果表明:声发射信号的分布情况与拉伸过程中的每个阶段相对应。在整个拉伸断裂过程中,不同V型缺口试样的幅值信号主要分布在40~70 dB之间,整个塑性变形过程中仅出现少量高幅值信号,而试样在断裂瞬间均出现100 dB的高幅值信号。声发射累积计数和累积能量随着损伤的累积而增加。此外,不同V型缺口的TC4钛合金试样从弹性变形到断裂各阶段的声发射的累积能量和累积计数曲线均有明显的阶段性特征,曲线斜率大小相似,累积计数和累积能量数值大小接近。

关键词： V型缺口 TC4钛合金拉伸声发射特征参数

卷积门控循环单元神经网络与光流法在临近预报中的适用性研究

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气象 2022年第11期48卷 1361-1372页

作者：张智察罗玲陈列李文娟赵放黄旋旋钟琦罗然浙江省气象台杭州310017 中国气象局气象干部培训学院北京100081

深度学习目前在临近预报的雷达外推应用中发展迅速,对其适用性的客观评估是业务应用的重要前提。利用粤港澳大湾区雷达回波开放数据集,基于回波图像形态、命中率、虚警率以及技巧评分,对比评估了卷积门控循环单元神经网络(ConvGRU)与基... 详细信息

深度学习目前在临近预报的雷达外推应用中发展迅速,对其适用性的客观评估是业务应用的重要前提。利用粤港澳大湾区雷达回波开放数据集,基于回波图像形态、命中率、虚警率以及技巧评分,对比评估了卷积门控循环单元神经网络(ConvGRU)与基于半拉格朗日平流方案的快速稠密光流法(OF)在未来120 min雷达回波外推中的效果,结果表明ConvGRU与OF虽外推效果良好,但均不适用于外推回波的生成、加强以及局地分散性特征,且外推效果显著受到天气过程种类的影响。其中,ConvGRU可能更适用于外推分布范围适中且运动简单的回波的主体位置,但回波的强度不稳定且形态模糊,其无法表征回波的精细化运动规律与演化特征;OF更适用于外推50 dBz以上的强回波,且回波结构更优,但在回波缺测区与强度少变区内的外推易存在很大的分布偏差。深度学习的数据集样本数是决定模型效果的最重要原因之一,但样本数实际未能全面覆盖各类天气过程,总体仍偏少,预报业务需进一步扩增。

关键词：临近预报雷达回波外推深度学习光流