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Analysis and Assessment on the Heavy Metals in a Severely Degraded Subtropical Red Soil Region

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American Journal of Plant Sciences 2024年第2期15卷 110-121页

作者： Fang Wang Yun Zhou Xiangping Fu Yuxiao Zhao Yiyao Wen Xintao Cui Shunbao Lu Yanjie Zhang college of Life Sciences Jiangxi Normal University Nanchang China Fengxi Street Office Guangfeng China college of foreign languages Jiangxi Agricultural University Nanchang China

5 different forests of Pinus massoniana, Schima superba, Liquidambar formosana, P. massoniana × S. superba, P. massoniana × L. formosana as the research object were set up to study the Cr, Cu and Zn content of degraded red soil region in subtropics. The soil heavy metal pollution degree was evaluated by national environmental quality standard (II class). The results showed that three soil metals of P. massoniana × S. superba were the highest, and the soil metals enrichment ability was strong. The order of single factor pollution index of metal elements was Cu (1.38) > Cr (0.81) > Zn (0.42), and moderately pollution, pollution warning and no pollution, respectively. There was no significant correlation between three soil heavy metals and soil total carbon (TC), total nitrogen (TN) and total phosphorus (TP). These results suggested that the accumulation of heavy metal elements was not derived from the parent material of soil. There was a significant positive correlation between the three metal elements which indicated that the sources of the three elements were similar. The structural equation model showed that the direct and indirect effects among the influencing factors ultimately affected the activity of heavy metals by cascade effects.

关键词： Subtropical Forest Type Degraded Red Soil Heavy Metals Pollution Evaluation

How to promote cooperative innovation in environmentally friendly technology:a case of agricultural biotechnology in China

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Chinese Journal of Population,Resources and Environment 2024年第2期22卷 127-135页

作者： Hongkun Ma Xian Mi Yi Zheng Ning Lv Shan Zhang Chunting Hu Xiaowei Wu Yuan Cao School of Economics Shandong Normal UniversityJinan 250358China School of foreign languages and Literatures Chongqing Normal UniversityChongqing 401331China School of Logistics Linyi UniversityLinyi 276000China college of Geography and Environment Shandong Normal UniversityJinan 250358China

This study explored the factors influencing cooperative innovation in environmentally friendly agricultural biotechnology in ***,we constructed an evolutionary game model comprising the factors of net income of cooperative innovation,net income of independent innovation,market constraints,and government *** MATLAB simulation,we assigned different values to the aforementioned variables to explore the evolutionary trend of innovators’willingness to *** showed that when the values of net income of cooperative innovation,net income of independent innovation,market constraints,and government subsidies exceeded the threshold,innovators’willingness to cooperate was significantly ***,the proportion of innovators who cooperated with others gradually increased to 100%;otherwise,it gradually decreased to 0%.Comparing the simulation curve with the real evolution curve of cooperative innovation in agricultural biotechnology in China,we found that the gradual decline in the willingness to cooperate could be due to insufficient subsidies for cooperative innovation,low income from cooperative innovation,weak profitability of innovators,and weak market constraints.

关键词： Cooperative innovation Evolutionary game MATLAB Simulation Agricultural biotechnology Environmentally friendly technology

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

Research progress on the identification and intervention strategies of situational crisis of college students

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Journal of Social Science Development Research

Journal of Social Science Development Research 2024年第2期2卷 18-24页

作者： Yong Wang School of International Language and Culture Chengdu University of Foreign LanguagesYibinSichuanChina

In order to identify and improve the level of situational crisis of college students,this paper studies and analyzes the identification and intervention strategies of situational crisis of college students,in order to provide references for the realization of early detection and prevention of situational crisis,improvement of intervention ability and formulation of college students'mental health service system.

关键词： Educational Ecology college English Teaching Teaching Team Development

Legends of Chinese Materia Medica

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China Book International 2024年第2期 98-101页

作者： Xiao Lili Beijing Normal University School of foreign languages Henan University of Chinese Medicine

There is a wide coverage in this book,ranging from the history of Traditional Chinese Medicine(TCM)to TCM fighting epidemics with thousands of years of history,standing out every notable landmark in the progress of TCM and unfolding every true hallmark of change in each stage,which provides a multi-faceted framework of *** not only thoroughly explores fundamental theories and four diagnostic methods in TCM,but also probes into great classics of TCM and the stories of renowned TCM doctors throughout history.

关键词： TCM fighting thoroughly

Deformation mechanism and hydrocarbon significance of Eocene organic-rich fine-grained soft sediments in the Leijia Region,Liaohe Depression

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Frontiers of Earth Science 2024年第1期18卷 83-97页

作者： Yijie WEN Jianguo ZHANG Shu TAO Chenyu CAI School of Energy Resources China University of Geosciences(Beijing)Beijing 100083China Key Laboratory of Strategy Evaluation for Shale Gas(Ministry of Land Resources) China University of Geosciences(Beijing)Beijing 100083China School of foreign languages China University of Geosciences(Beijing)Beijing 100083China

The deformation structure of soft sediments has always been a research hotspot,which is of great significance for analyzing the tectonic and sedimentary evolution background of a basin,as well as the physical properties of *** studies have reported that a large number of soft sediment deformation structures are developed in the western part of Liaohe *** this study,through core observation and thin section identification,various types of deformation structures are identified in the core samples which are collected from the upper Es4 in the Leijia region,western sag of Liaohe depression,such as liquefied dikes,liquefied breccia,convoluted laminae,annular bedding,synsedimentary faults,vein structures,*** on the characteristics of core structure,single well profile and continuous well profile,combined with the regional background,this study clarifies that the deformation structure of soft sediments in the study area is mainly caused by seismic *** is found that the permeability and porosity of deformation layers in the study area are higher than those of the undeformation layers,which proves that the deformation structure of soft sediments has a good effect on improving the physical properties of reservoirs.

关键词： soft sediment deformation structure Liaohe depression organic-rich fine-grained soft sediments hydrocarbon significance

Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO_(2)

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Nano Research 2024年第4期17卷 2320-2327页

作者： Shuanglong Zhou Zheng Lv Liang Zhao Dan Zhang Zuocao Wang Yu Dai Bin Li Olga Starostenko Jianping Lai Lei Wang Key Laboratory of Eco-chemical Engineering Ministry of EducationTaishan scholar advantage and characteristic discipline team of Eco-chemical process and technologyLaboratory of Inorganic Synthesis and Applied ChemistryCollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042China college of foreign languages Qingdao City UniversityQingdao 266106China college of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China Institute of Macromolecular Chemistry of the National Academy of Sciences of Ukraine Kyiv 02160Ukraine Shandong Engineering Research Center for Marine Environment Corrosion and Safety Protection College of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdao 266042China

The main problem faced by ethanol oxidation reaction(EOR)includes low activity,poor selectivity,and *** the study,we found that polysulfide modified on the surface of PtCu intermetallic(IM)/C can simultaneously enrich hydroxyl and ethanol,which could effectively improve the catalytic activity,CO_(2) selectivity,and durability of *** mass activity and the specific activity of the product in 1 M KOH electrolyte reached 17.83 A·mgPt^(-1) and 24.67 mA·cm^(-2).The CO_(2) selectivity of polysulfide modified product achieved 93.5%,which was 30 folds higher than Pt/*** addition,the catalyst showed high catalytic *** mechanism study demonstrates that the surface modified polysulfide could significantly boost the enrichment effect of ethanol and hydroxyl species,accelerating C–C bond cleavage and CO oxidation.

关键词： Pt CO_(2) selectivity enrichment effect ethanol oxidation reaction(EOR) electrocatalyst

Towards Lessening Learners’Aversive Emotions and Promoting Their Mental Health:Developing and Validating a Measurement of English Speaking Demotivation in the Chinese EFL Context

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International Journal of Mental Health Promotion 2024年第2期26卷 161-175页

作者： Chili Li Xinxin Zhao Ziwen Pan Ting Yi Long Qian School of foreign languages Hubei University of TechnologyWuhan430068China Faculty of Education The University of Hong KongHong Kong999077China School of foreign languages Henan UniversityKaifeng450046China Research Institute of International Chinese Language Education Beijing Language and Culture UniversityBeijing100083China Faculty of Humanities The Hong Kong Polytechnic UniversityHong Kong100872China School of Humanities Wuhan University of Engineering ScienceWuhan430200China

While a plethora of studies has been conducted to explore demotivation and its impact on mental health in second language(L2)education,scanty research focuses on demotivation in L2 speaking ***,little research explores the measures to quantify L2 speaking *** present two-phase study attempts to develop and validate an English Speaking Demotivation Scale(ESDS).To this end,an independent sample of 207 Chinese tertiary learners of English as a foreign Language(EFL)participated in the development phase,and another group of 188 Chinese EFL learners was recruited for the validation of the *** Factor Analysis(EFA)and Confirmatory Factor Analysis(CFA)were employed to determine the factor structure of the *** EFA results revealed a six-factor solution with Teacher-related Factors in Learning Spoken English(TFLSE),Interest and Valence in Learning Spoken English(IVLSE),Self-efficacy in Learning Spoken English(SELSE),Negative Peer Influence in Learning Spoken English(NPILSE),Undesirable Environment for Learning Spoken English(UELSE),and Negative Influence of Assessment and Learning Materials in speaking class(NIALM).In the validation phase,Confirmatory Factor Analysis(CFA)was performed to validate the internal structure of the *** CFA results showed that the model fits the data ***,the ESDS is a robust and trustworthy psychometric tool that could be utilized to examine L2 speaking *** for diminishing EFL learners’demotivation,lessening their aversive emotions and promoting their mental health are also discussed.

关键词： Demotivation for learning English speaking ESDS scale development and validation Chinese EFL learners mental health

Research Nexus and Implications of Learner Identity in foreign Language Education

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Journal of Contemporary Educational Research 2024年第2期8卷 48-56页

作者： Tenglong Gong college of International Studies Southwest UniversityChongqing 400715China School of foreign languages Xinjiang Education InstituteUrumqi 830043Xinjiang Uyghur Autonomous RegionChina

One of the most obvious markers of an individual’s identity is their ***,in some ways,the relationship between identity and language acquisition seems to be *** fact,a lot of studies have shown that identity may influence the reasons behind language acquisition,especially in bilingual or multilingual *** English can provide EFL(English as a foreign Language)students with a good sense of identity and encourage them to practice their agency,which can improve learning efficiency and *** paper examines how the efficacy and results of language learning are influenced by the learner’s identity.

关键词： Learner identity Motivation English learning foreign language education