检索结果-内蒙古大学图书馆

Using a diagrammatic approach to reveal variations in students’ instructional representations about the five kingdoms in biology between two cultural groups

引用

International Journal of Science Education 2025年第2期47卷 147-172页

作者： Ge, Yun-Ping Yang, Wen-Jin Tam, Hak-Ping International Master’s Program of Learning & Instruction National Taipei University of Education Taipei Taiwan Graduate Institute of Sciences Education National Taiwan Normal University Taipei Taiwan

This study based on cognitive and social semiotic theories investigates whether the influence of specific features of instructional representation from adolescent textbook images could last until adulthood in certain cultures. Two cultural groups, Indonesian (n = 61) and Taiwanese (n = 60) college students, were recruited from a public Taiwanese university. Reading an essay about how the biological five kingdoms were classified served as the foundation for student-generated drawings. Semi-structured interviews and verbal data were used to track the origin of influences in their drawings. The initial result of coding drawings revealed that most of the drawing structures were shared between groups while only the design of Evolution, revealing sequential taxa in the evolution history, was Taiwanese-specific. Further statistic testing indicated that only participants’ nationality was a significant factor in determining the drawing structure while pedagogical content knowledge is not. A comparison of these results indicated that most Taiwanese representations agreed with that of the non-hierarchical design used in their prior textbook while the Indonesian representations agreed with the hierarchical design of their textbook. The results suggest that there are several competing factors interfering with the decision about image design. Suggestions for teacher education and further study are addressed. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： cross-cultural comparison Diagrammatic approach visual representation

来源：评论

学校读者我要写书评

暂无评论

Research trends in science education from 2018 to 2022: a systematic content analysis of publications in selected journals

引用

International Journal of Science Education 2025年第4期47卷 510-538页

作者： Lin, Tzung-Jin Lin, Tzu-Chiang Potvin, Patrice Tsai, Chin-Chung Program of Learning Sciences School of Learning Informatics National Taiwan Normal University Taipei Taiwan Institute for Research Excellence in Learning Sciences National Taiwan Normal University Taipei Taiwan Center for Liberal Arts National Kaohsiung University of Science and Technology Kaohsiung Taiwan Center for Teacher Education National Kaohsiung University of Science and Technology Kaohsiung Taiwan Département de didactique Université du Québec à Montréal Montréal Canada

This study uncovers research trends by analysing 1,142 papers published in Science Education, Journal of Research in Science Teaching, and International Journal of Science Education: Part A between 2018 and 2022, followed by a series of systematic reviews dating back to 1998. The main findings indicate that, during the period of 2018–2022, the three most studied research topics were associated with learner characteristics and classroom contexts (learning-Context), teacher thinking/cognition and pedagogical issues (Teaching), and preservice education/in-service professional development (Teacher Education). An emerging interest in investigating the influence of cultural, social, and gender factors on science education (Culture, Social, and Gender) was observed. The analysis of the top 10 most-cited papers unveiled a notable focus on pertinent theoretical discussions and empirical research within the context of STEM/STEAM education. Besides, issues regarding engagement in and out of school settings, learners’ epistemologies, or sensemaking and science as practice were also highly cited. It is worth noting that there has been a rapid surge and new trend in research concerning science identity, garnering substantial attention by researchers as a meaningful lens for exploring relevant issues associated with participation and pipeline/career paths in STEM-related fields. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Literature review Research trend Science education Systematic content analysis

来源：评论

学校读者我要写书评

暂无评论

Thermal disorder and phonon softening in the ferroelectric phase transition of lead titanate

引用

Physical Review B 2025年第9期111卷 094113-094113页

作者： Pinchen Xie Yixiao Chen Weinan E Roberto Car Program in Applied and Computational Mathematics Princeton University Princeton New Jersey 08544 USA AI for Science Institute Beijing China and Center for Machine Learning Research and School of Mathematical Sciences Peking University Beijing China

We report a molecular dynamics study of ab initio quality of the ferroelectric phase transition in crystalline PbTiO3. We model anharmonicity accurately in terms of potential energy and polarization surfaces trained on density functional theory data with modern machine learning techniques. Our simulations demonstrate that the transition has a strong order-disorder character, in agreement with diffraction experiments, and provide fresh insight into the approach to equilibrium across the phase transition. We find that the emergence and disappearance of the macroscopic polarization is driven by dipolar switching at the nanometer scale. We also computed the infrared optical absorption spectra in both the ferroelectric and the paraelectric phases, finding good agreement with the experimental Raman frequencies. Often, the almost ideal displacive character of the soft mode detected by Raman scattering in the paraelectric phase has been contrasted with the order-disorder character of the transition suggested by diffraction experiments. We settle this issue by showing that the soft mode coexists with a strong Debye relaxation associated with thermal disordering of the dipoles. The Debye relaxation feature is centered at zero frequency and appears near the transition temperature in both the ferroelectric and the paraelectric phases.

关键词： Ferroelectricity

来源：评论

学校读者我要写书评

暂无评论

Charles Hohensee and Joanne Lobato (Eds.). Transfer of learning: progressive perspectives for mathematics education and related fields

引用

Mathematical Thinking and learning 2025年第2期27卷

作者： Daniel Hickey Tripp Harris Joshua Quick a Learning Sciences Program Indiana University b Learning Sciences Program Indiana University

来源：评论

学校读者我要写书评

暂无评论

A Modest feature for repositioning minoritized online students to support disciplinary engagement and achievement 14

A Modest feature for repositioning minoritized online studen...

引用

14th International Conference of the learning sciences: The Interdisciplinarity of the learning sciences, ICLS 2020

作者： Hickey, Daniel T. Quick, Joshua D. Learning Sciences Program Indiana University

ISBN: (纸本)9781732467286

A feature was added to an existing online graduate education course to support engagement and learning of students who find themselves minoritized by the composition of classes and/or the disciplinary knowledge in those classes. This feature was a reflection on cultural engagement. It led to a dramatic increase in students' use of sociopolitical controversies to frame their engagement. This allowed the instructor to reposition minoritized students and helped majoritized students recognize their potential implicit bias. © 2020 International Society of the learning sciences (ISLS). All rights reserved.

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Acceptability, feasibility, fidelity and quality implementation of the culturally adapted version of the Social Competence Promotion program among Young Adolescents (“Mi Mejor Plan”) to prevent substance use among adolescents in Chile: a pilot randomized control study

引用

BMC Public Health 2025年第1期25卷 1-18页

作者： Ramirez, Saray Ríos, Natalia Rojas-Barahona, Cristian A. Cárcamo, Marcela Sepulveda-Pañaloza, Alejandro Araya, Ricardo Gaete, Jorge Research Center for Student Mental Health (ISME) School of Education Faculty of Social Sciences Universidad de los Andes Santiago Chile ANID Millennium Science Initiative Program Millennium Nucleus to Improve the Mental Health of Adolescents and Youths Imhay Santiago Chile Faculty of Psychology Universidad de Talca Talca Chile ANID Millenium Nucleus for the Sciences of Learning Santiago Chile Department of Epidemiology and Health Studies Faculty of Medicine Universidad de los Andes Santiago Chile Department of Health Service and Population Research King’s College London London United Kingdom

Introduction: Substance use among adolescents is a public health problem. We culturally adapted The Social Competence Promotion program for Young Adolescents (SCPP-YA) program to the school context in Chile (henceforth “Mi Mejor Plan or MMP”) and assessed the acceptability, feasibility, fidelity, and quality of the implementation among 6th graders. We also explored the efficacy of the program in improving individual protective factors and reducing risk factors and substance use. Methods: Cluster randomized controlled trial conducted in Chile. The schools were randomly assigned to one of two conditions in a 1:1 ratio: 1) the "MMP" intervention group, and 2) the Control group. The program consisted of a 16-h class-based curriculum promoting social problem-solving skills delivered by a trained facilitator. Primary outcomes were acceptability, feasibility, fidelity, and quality of the implementation using detailed reports of facilitators and from observers of the performance of the facilitators in vivo. Additionally, we explored the efficacy of the intervention on secondary outcomes: 30-day prevalence of tobacco, alcohol, and cannabis use and individual risk and protective factors promoted by MMP. We performed an intention-to-treat analysis using mixed models, taking into account the hierarchical nature of the data. Results: Seven hundred sixty-five 6th graders from 11 schools were enrolled (one school dropped out after the randomization);608 were analyzed at baseline, and 538 were analyzed post-intervention. 52.5% were male, and the average age was 11.3 in both groups. All 16 sessions were implemented, and students’ attendance at each session ranged from 83.8% to 92.4%. The program was generally well-received, with up to 91.3% of students rating acceptability positively. Facilitators and observers reported high adherence to the contents of the program in most sessions. Protective factors, such as negative beliefs about tobacco and alcohol, increased significantly in th

关键词： Acceptability Adolescents Feasibility Fidelity Prevention Substance Abuse

来源：评论

学校读者我要写书评

暂无评论

Agents with attitude: Exploring coombs unfolding technique with agent-based models

引用

International Journal of Computers for Mathematical learning 2009年第1期14卷 51-60页

作者： Wilkerson, Michelle Hoda Learning Sciences Program Northwestern University 2120 Campus Drive Evanston IL United States

Coombs unfolding technique, and model technique using simple Agent-Based Models (ABM) developed in the NetLogo modeling environment has been reported. This technique deals with qualitative distances rather than precise measurements, and with individual data rather than aggregated statistical properties. This makes it difficult to quantify joint scales or individual locations in order to construct population-level descriptions of the data. This modal is appropriate due to several reasons such as agent level computations, emergent aggregate results, randomness and simplicity. The computational modeling can help one to engage with and extend complex mathematical problems. Agent-based modeling, allows one to explore simultaneous individual-level interactions within a large population, allowing Coombs unfolding to be performed on many agents, producing an emergent population level outcome.

关键词： Autonomous agents

来源：评论

学校读者我要写书评

暂无评论

Situative approaches to student assessment: Contextualizing evidence to transform practice

Teachers College Record

引用

Teachers College Record 2007年第13期109卷 264-287页

作者： Hickey, Daniel T. Anderson, Kate T. Indiana University Learning Sciences Program United States National Institute of Education's Learning Sciences and Technologies Group Singapore

来源：评论

学校读者我要写书评

暂无评论

Comparing the effect of cognitive style on learners’ engagement levels and learning performance by analyzing LMS logs 26

Comparing the effect of cognitive style on learners’ engage...

引用

26th International Conference on Computers in Education, ICCE 2018

作者： Li, Liang-Yi Program of Learning Sciences Institute for Research Excellence in Learning Sciences National Taiwan Normal University Taiwan

ISBN: (纸本)9789869721424

Teachers can publish a variety of multimedia learning materials on learning management system. Students can freely access these materials for their self-regulated learning. Students with different verbalizer-visualizer cognitive style may have different engagement levels in accessing different kinds of online multimedia learning materials, and thus may affect their learning performance. Therefore, this study analyzed the system logs for understanding the effects of verbalizer-visualizer cognitive style on students’ engagement levels and learning performance. The results revealed that cognitive style did not affect the engagement level of the students. However, students learning performance was affected by cognitive style. These results were then discussed. © 2018 Asia-Pacific Society for Computers in Education..All Rights Reserved.

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Carbon nanotube/conductive carbon black-filled natural rubber composites for strain sensing

引用

Materials Chemistry and Physics 2025年 341卷

作者： Kitisavetjit, Wasuthon Paradee, Noppawan Ounjai, Kajornwut Kalkornsurapranee, Ekwipoo Promsung, Rawiporn Johns, Jobish Nakaramontri, Yeampon Sustainable Polymer & Innovative Composites Material Research Group Department of Chemistry Faculty of Science King Mongkut's University of Technology Thonburi Bangkok Thailand Biological Engineering Program Faculty of Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand Neuroscience Center for Research and Innovation Learning Institute KMUTT Bangkok Thailand Division of Physical Sciences Faculty of Science Prince of Songkla University Hat-Yai Thailand Department of Physics Rajarajeswari College of Engineering Bangalore India

Strain sensors were developed using conductive natural rubber (NR) and epoxidized natural rubber (ENR) composites filled with carbon nanotubes (CNT) and carbon black (CCB) to evaluate their rapid recovery after elastic deformation. The CCB concentration was set at 1.5 times the CNT concentration, with CNT and CCB contents maximized at 25 and 37.5 parts per hundred rubbers (phr), respectively. The crosslink propagation, mechanical and dynamic mechanical properties, and morphological characteristics were analyzed to elucidate the effect of the CNT/CCB hybrid filler within the NR and ENR matrices. Increasing the CNT/CCB content above 5/7.5 phr reduced the tensile strength and elongation at break due to filler agglomeration. However, the crosslink density, modulus, and production time improved. Compared to NR composites, ENR composites exhibited superior properties, attributed to the improved dispersion and distribution of fillers facilitated by the polarity of the ENR molecular chains. The selected composites were subjected to piezoresistive testing to evaluate the performance of strain sensors under stretching, compression, and bending protocols. The results revealed that CNT/CCB-filled ENR composites exhibited high sensitivity in tension and bending tests, while NR composites demonstrated appropriate signal responses in compression modes. This behavior was attributed to the critical CNT:CCB ratio of 20:30 phr, which enabled an optimal correlation between modulus and extensibility in the rubber matrix. This balance facilitated interactions between rubber molecular chains and the hybrid filler surface under multidirectional forces. These findings offer valuable insights for motion detection applications, particularly in scenarios involving deformation in multiple directions. © 2025

关键词： Tensile strength

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：