bluuebunny/crossref_metadata_2025 huggingface dataset:
以小學教師資格考探索人工智慧工具於師資養成輔助的潛力-試題 認知層次分析
Authors: 賴碧純 賴碧純 , 文爾雅 文爾雅 , 林靜雯 林靜雯
Published: November 2024

為解決複雜的教學問題，需培養教師具備高階認知層次的能力，而日新月異的人工智慧有望成為師資養成的助力。教師資格考試為師資生修習師培課程能力認證的門檻，分析試題中的認知層次分布及人工智慧工具（例：ChatGPT）的答題表現，以探索其於教學輔助能力的表現有其必要性。本研究選取2019年到2022年小學教師資格考試中的教育專業科目，即「教育理念與實務」、「學習者發展與適性輔導」和「課程教學與評量」三相關考科的試題，共560題，運用修訂後的Bloom認知分類六層次，並再區分為高、低層次對不同考科試題及題型進行分析。此外，研究者探查ChatGPT於相關考科的總得分，並以盒鬚圖比較ChatGPT在不同科目和題型中高、低認知層次試題得分比的分布情形。結果顯示，教師資格考試的教育專業科目中，三考科的低認知層次試題占分比都高於高認知層次試題。符應素養導向評量要求的綜合題，高認知層次占分比比較高，達81.67 % ，但選擇題的高認知層次占分比僅達6.55 % ，有提升高認知層次比例的必要。此外，ChatGPT在教育專業科目平均總分為72.73分，成功通過教師資格考試平均60分的門檻，但對於高認知層次試題的表現歧異度大。這表明ChatGPT具有成為師資養成輔助工具的潛力，但教育工作者仍需特別注意高層次認知情境的評鑑與批判。

 

Training teachers to develop higher cognitive levels to address complex teaching challenges is necessary. Artificial intelligence (e.g., ChatGPT) holds the potential to assist in teacher education. Teacher qualification examination serves as a threshold for certifying pre-service teachers’ abilities in pursuing teacher education curricula. Analyzing the distribution of cognitive levels in examination questions and assessing the performance of artificial intelligence tools in answering these questions is necessary to explore their potential in aiding teaching assistance. This study selected 560 education professional examination questions from the elementary school teacher qualification examination between 2019 and 2022. We used the revised Bloom’s cognitive taxonomy to analyze and categorize questions into high and low cognitive levels. We investigated the ChatGPT scores in the relevant subject areas and compared the differences in score distribution between high and low cognitive levels across different subjects and question types using box plots. The results indicate that the percentage of low-order questions in all three subjects was higher than that of high-order questions in the teacher qualification examination of education professional subjects. The proportion of high-order comprehensive questions has increased to 81.67% to meet the competence-oriented assessment requirements. The percentage for multiple-choice questions remains relatively low at only 6.55%. This indicates a need to increase the proportion of high-order questions. Furthermore, ChatGPT achieved an average total score of 72.73 points in the education professional subjects, surpassing the threshold of an average score of 60 points for the teacher qualification examination. However, there was significant variability in its performance on high-order questions. This suggests that ChatGPT can potentially become an assistive tool for teacher education. However, educators must consider developing critical thinking skills in high-order cognitive contexts when using such tools.

 
卡那卡那富族藝術文化融入幼兒園美感課程之教學實踐與成效
Authors: 陳玉婷 陳玉婷
Published: November 2024

本研究採協同行動研究法，探討卡那卡那富族藝術文化融入幼兒園美感課程之教學實踐與成效。研究者帶領教保員規劃文化本位的原住民族美感課程、實施教學、進行觀察與省思、評估課程成效。研究參與者主要為12位三至五歲混齡班原住民族幼兒。資料蒐集包括：課程週誌、課程討論記錄、訪談、美感能力評量前後測、族群認同訪談前後測、教學省思札記等。質性資料以編碼與範疇分析，量化資料以描述性統計、無母數檢定進行分析。研究發現：一、教保員將卡那卡那富族藝術文化融入學習區及老幼共學活動，引導幼兒探索部落自然環境，創作相關藝術作品，並欣賞幼兒自己的作品。二、本課程有助於幼兒提升美感能力以及族群認同。三、透過協同行動研究，教保員在美感教學專業有所成長。

 

This study used collaborative action research to investigate the pedagogical practices and effects of incorporating Kanakanavu arts and culture into a preschool aesthetic curriculum. The researcher guided the childcare worker in implementing a cultural-based indigenous aesthetic curriculum within a Kanakanavu language immersion class. This process involved designing, teaching, observing, and reflecting on the new curriculum. The main participants were 12 indigenous children aged 3-5 in a mixed-age class. Data were collected through weekly curriculum journals, curriculum discussion notes, interviews, pre- and post-tests of aesthetic ability, pre- and post-interviews on ethnic identity, and teaching reflection notes. Qualitative data were analyzed through coding and categorization, while quantitative data were examined using descriptive statistics and non-parametric tests. The findings are as follows. First, the childcare worker effectively integrated Kanakanavu arts and culture into learning areas and intergenerational learning activities. She guided the children in exploring the natural environment in the tribe, creating related artworks, and appreciating their creations. Secondly, the curriculum positively impacted the children, enhancing both their aesthetic abilities and ethnic identity. Thirdly, through collaborative action research, the childcare worker advanced her professional skills in aesthetic teaching.

 
How to End an Epidemic: The Politics of Poetry in Seventeenth-Century Cádiz
Authors: León Paulina
Published: November 2024

This article analyzes the poems gathered and published by Ignacio de Saavedra, public prosecutor of the city of Cádiz, that participated in the festivity of plague’s remission in 1681. It argues the poetic and iconographic project of the volume aims to influence the perceptions of the political management of epidemics in the eyes of local survivors. In so doing, plague poetry reinstated the social and political order temporarily upended by plague and gave the city a sense of pride and identity.
Introduction
Authors: Douesnel Laurent , Khonsari Roman Hossein
Published: November 2024

L’impression tridimensionnelle (3D) s’est généralisée à de nombreux champs professionnels au cours des dernières décennies, notamment dans le monde de la santé. Aujourd’hui, de multiples corps de métiers dans le domaine des soins à la personne s’appuient quotidiennement sur cette technologie, qui participe à la notion de soin sur mesure. L’impression 3D contribue à répondre à l’enjeu des soins patients-spécifiques en associant efficacité, sécurité et accessibilité.

La chirurgie maxillo-faciale bénéficie depuis de nombreuses années de l’impression 3D. Cette technologie trouve une place de plus en plus importante en chirurgie orthognathique, chirurgie qui vise à déplacer et repositionner les bases osseuses des tiers médian et inférieur de la face.

Dans cet ouvrage fondé sur une thèse d’exercice de médecine soutenue à l’université Paris Cité (1), nous proposons tout d’abord d’exposer en détails les notions qui entourent l’impression 3D, de la technologie aux applications en chirurgie, avec une introduction spécifique du cadre réglementaire de son utilisation. Dans un second temps, nous aborderons la place de l’impression 3D en chirurgie orthognathique en général. Enfin, nous exposons le cas concret de la mise en place d’un flux numérique et d’une chaîne de production 3D dans ce domaine spécifique de la chirurgie maxillofaciale, au sein d’un hôpital universitaire français (CHU de Nantes).
Machine Learning Applications in Fleet Electrification: Optimizing Vehicle Maintenance and Energy Consumption
Authors: Nampalli Rama Chandra Rao
Published: November 2024

The electric vehicle (EV) market has been growing not only for passenger vehicles, where we witness high adoption of these cleaner cars, divided into Hybrid Electric Vehicles (HEVs), Plug-In Electric Vehicles (PHEVs), and Battery Electric Vehicles (BEVs), but also in buses, trucks, and vans, with an increasing conversion pressure due to regulations. In last-mile delivery, powerful optimization tools combining machine learning with operations research have become the subject of several studies, aiming to achieve efficient energy consumption in EVs by predicting drivers’ behaviors or track charts. Moreover, new strategies have been developed for something known as fleet electrification, i.e., when a carrier company aiming mainly to decrease its environmental footprint combines the operation of conventional fuel-powered vehicles with electric ones; this is not a complete switchover, but an intermediate stage. Since computational methods converged, fleet electrification attracted researchers’ interest as a techno-economical optimization question related to three main research lines with a strong potential impact on environmental electricity: energy mix-related carbon emissions. The first category of services that impacted fleet electrification before the advent of machine learning was related to condition-based maintenance. As commercial gas, electricity, heating oil, and water consumption can be budgeted across a year’s worth of monthly payments, fixing a price through the year could help these fleets include commercial formulations that account for released corporate emissions through approved carbon offsetting. In concrete numbers, our technical paper has two key goals: firstly, we investigate whether and to what extent the Vehicle Misuse Factor, as defined, and the initial state of relevant vehicle parts (tires, gearbox, motor, etc.) affect the electric energy consumption of EVs; secondly, we propose and solve the cost minimization model arising from this energy consumption prediction.
Impact Of Digitisation On Hr In The Mncs Market And Strategic Implementation
Authors: Khan Anam , Jain Dr Vipul Jain
Published: November 2024

The rapid digitisation of businesses in the MNCs market has ushered in a new era for Human Resources (HR) management. This research aims to investigate the impact of digitisation on HR practices and explore strategic implementation strategies. Through a quantitative survey of 100 participants, this study examines the perceptions and experiences of HR professionals. The findings shed light on the transformational potential of digitisation in HR, offering insights for businesses seeking to leverage technology for enhanced HR outcomes. The findings of this research offer critical insights to HR professionals and business leaders as they navigate the digital landscape, ultimately aiming to unlock the full potential of digital HR in an ever-evolving world. The survey reflects a notable lack of confidence in the cybersecurity measures in place to protect sensitive HR data in the digital age. This underscores the importance of robust cybersecurity protocols and continuous vigilance in safeguarding critical HR information.
MORAL HARASSEMENT IN CONGOLESE LABOUR LAW
Authors: Éric Lekie Yoka
Published: November 2024

Moral harassmentis a phenomenon that affects many workers around the world. In the Democratic Republic of Congo (DRC), this scourge is also present in both public and private companies. In this dissertation, we expose the different typesof moral harassment and the treatment reserved for it by the Congolese legislator, which we have analyzed with the greatest attention. Several books and articles have been written on moral harassment, shedding light on the various forms of moral harassment, the consequences of these behaviors on workers, and the means of prevention around the world, particularly in the Democratic Republic of Congo.
POTENSI AKAL MANUSIA DAN PEROLEHAN ILMU PENGETAHUAN DALAM PEMIKIRAN EPISTEMOLOGIS IBNU KHALDUN
Authors: Nasrullah Amin
Published: November 2024

Epistelogi Islam menempatkan akal sebagai salah satu sumber pengetahun, di samping wahyu. Namun sampai saat ini umat Islam masih berbeda pandangan perihal hubungan akal dan wahyu, terutama terkait fungsi akal. Maka penting bagi ummat Islam, merumuskan konsepsi epistemologis yang holistik dan memadukan keduanya. Ibnu Khaldun merupakan filosof muslim yang mempunyai konsepsi epistemologis, yang menjelaskan potensi akal dan kedudukannya di samping wahyu. Artikel ini bertujuan untuk mengetahuai konsepsi Ibnu Khaldun tentang akal, potensinya dalam perolehan ilmu pengetahuan, dan eksistensinya dalam epistelogi Islam. Studi menggunakan analisis deskriptif kualitatif melalui metode literer, dengan menelusuri pemikiran Ibnu Khaldun dari kitab Muqaddimah sebagai sumber primer, dan buku-buku lain yang relevan. Hasil studi didapatkan bahwa akal pikiran berperan penting dalam perolehan pengetahuan. Akal merupakan potensi untuk memahami segala sesuatu, memperoleh dan mengembangkan pengetahuan. Ilmu pengetahuan merupakan kemampuan manusia membuat analisis dan sintesis sebagai hasil dari proses berpikir (af`idah). Proses berpikir itu berlangsung berdasarkan tingkatannya, yang terbagi menjadi tiga: `aql tamyizi, `aql tajribi, dan `aql nadhari. Berdasarkan itu, ilmu pengetahuan dibedakan dalam dua kategori: ilmu naqliyyah dan aqliyyah. Konsepsi ilmu Ibnu Khaldun bersifat integral, dan relevan dengan situasi umat Islam saat ini, terutama dalam konteks pendidikan Islam dan tantangan perkembangan ilmu pengetahuan.
Lactancia y Desarrollo Dental
Authors: Tenorio Cahuana Yury Miguel , Rivera Benavente Orlando Agustín , Changllio Roas Juan José Evaristo , Calderón Copa Edgard Guido , Choque Mamani Luis Fredy
Published: November 2024

Este libro presenta un estudio cuyo objetivo es analizar la relación entre la lactancia y las maloclusiones en niños de 3 a 5 años, realizado en el Centro de Salud San Francisco de Tacna en 2019. El enfoque de la investigación es correlacional, prospectivo y de corte transversal, involucrando a una muestra de 98 niños. La investigación se basa en encuestas a madres sobre el tipo y duración de la lactancia (materna, biberón o mixta) y los hábitos de succión no nutritiva de los niños. Los resultados mostraron que el 44,9% de los niños presentaba algún tipo de maloclusión. No se encontró una relación significativa entre la lactancia materna exclusiva y las maloclusiones, pero sí se halló una asociación entre la lactancia con biberón y las maloclusiones en las relaciones vertical, sagital y en la desviación de la línea media. Asimismo, la lactancia mixta también mostró una relación significativa con la maloclusión en la relación sagital. El análisis estadístico se llevó a cabo mediante el test de Chi-cuadrado, distribución de frecuencias y odds ratio (OR) para comparar los grupos. Los hallazgos sugieren que la lactancia con biberón y mixta están más asociadas a maloclusiones, mientras que la lactancia materna exclusiva no lo está. En conclusión, el libro refuerza la importancia de la lactancia materna en la prevención de problemas dentales en la infancia temprana, señalando los riesgos que pueden traer la lactancia artificial y mixta en el desarrollo de maloclusiones.
Advances in pain management: Comparative study of modern anesthesia drugs
Authors: Baraqaan Hani , Alharbi Khalid Saud
Published: November 2024

In the field of nursing and medicine, the importance of pain management cannot be overstated. Chronic pain and acute pain are difficult to define and treat, affecting nearly every aspect of life for millions of people. What counts as pain management has shifted over time, with different cultures and healthcare practitioners ascribing to a variety of methodologies and philosophies. In the beginning, pain management was often regarded as synonymous with "hurt" management, and the extent of discomfort was questioned by the treating doctor. Recent developments in investigation and innovation have resulted in advances in pain management and a greater understanding of the neuropathological and psychopathological causes of chronic pain. Interdisciplinary cooperation is needed to help assess patient care and ensure that care is personalized. The pharmacokinetics and pharmacodynamics of these drugs have been a recent development against current beliefs and aspirations. In addition to their uses and results, this analysis examines opioid and non-opioid pain management medications in comparison.
Effects of Teachers Qualification and Experience on Students’ Competences in Mathematics Subject in Public Secondary Schools in Rwanda
Authors: NIYIKOMEYE Ange Pacifique , ANDALA Hesbon Opiyo
Published: November 2024

This research investigates the impact of teachers' qualifications and experience on students' competencies in mathematics in Rwandan public secondary schools. The study aimed to assess how teachers' mathematical qualifications influence students' learning outcomes and to analyze the relationship between teacher experience and student competence. A descriptive research design utilizing a mixed-methods approach was employed, with a sample of 185 respondents selected from a population of 343, including mathematics teachers, head teachers, and students. Data was collected through questionnaires, interviews, and document analysis, using SPSS Version 23 for evaluation. The results were presented in tables and shared with stakeholders to promote teacher development and improve student performance in mathematics. Findings revealed that teacher qualifications significantly affect student competence. Specifically, 37.5% of respondents strongly agreed that teaching experience enhances students' understanding, while 50% agreed. The mean score was 4.21 (SD = 1.6). Additionally, 62.5% affirmed that teaching resources and diverse methods positively impact their learning, with a mean of 4.11 (SD = 1.12). The study also highlighted that specialized training in mathematics motivates students, as indicated by 46.5% who strongly agreed and 48.6% who agreed, with a mean of 4.42 (SD = 0.84). The research recommends that the Rwanda Education Board (REB) and schools support teachers through ongoing training and monitoring to enhance teaching quality. It is essential for teachers to ensure students are comfortable with their teaching methods, provide ample exercises, and foster an appreciation for mathematics as a vital subject in everyday life.
Tuition Fees Reduction on Student Performance in Public Secondary Schools of Rwanda
Authors: Ntawuhiganayo Emmanuel , Mugiraneza Faustin
Published: November 2024

The research investigated the contribution of tuition fee reductions to student performance in public secondary schools in Rwanda. Specifically, the research examines the specific factors that contribute to the effectiveness of tuition fee reduction in public secondary schools in Rwanda, assesses the level of academic performance of students in public secondary schools due to the reduction in tuition fees in Rwanda, and analyzes the relationship between tuition fee reduction and the students ‘academic performance in public secondary schools in Rwanda. This study's target population will consist of 415 respondents. The sample size will be 194 people. This study utilized primary sources like questionnaires, interviews, and observation to gather data. It employed purposive, stratified, and simple random sampling methods. Both quantitative and qualitative methodologies were used for analysis. For the first objective, results indicate that the majority of teachers, with a total of 92.0%, strongly agreed or agreed that a rising percentage of students are enrolling; 96.0% either strongly agreed or agreed that class participation and engagement; and 90.7% strongly agreed or agreed that low completion rates show the specific factors that contribute to the effectiveness of tuition fee reduction. For the second objective, 94.0% strongly agreed or agreed that graduation rates were high, and 98.6% either strongly agreed or agreed that a high number of students attended. Additionally, 96.6% strongly agreed or agreed that higher national examinations resulted, and 72.0% strongly agreed or agreed that retention rates indicate the academic performance of students in public secondary schools due to the reduction of the reduction of tuition fees in Rwanda. Results on the relationship between tuition fee reduction and the students ‘academic performance in public secondary schools in Rwanda. The correlation matrix between independent variables (government funding, institutional budget, and program section) and dependent variables (increased number of graduates, high student attendance, and increased student retention rates) shows positive significance since the p-value was less than 0.05. Based on research findings It is recommended that A tiered tuition fee structure, scholarships, grants, increased government funding, a free education policy, private sector involvement, and cost-sharing programs can make education more accessible and affordable for students.
Influence of Gender Disparity Practices on Students’ Academic Performance in Physics in Public Secondary School of Rwanda: A Case of Nyanza District
Authors: NSENGIYUMVA Lydia , Andala Opiyo Hesbon
Published: November 2024

This research investigated the influence of gender disparity practices on the performance of students in physics in a public secondary school in Rwanda. The study examined the gender disparity practices that influence student academic performance in physics in public secondary schools in Rwanda, assess student academic performance in physics in public secondary schools in Rwanda, and determine the relationship between gender disparity practices and student academic performance in physics in public secondary schools in Rwanda. The target population of this research was 7,924, from which a sample size of 381 respondents were chosen as the participants of the study, including students from public secondary schools, teachers, head teachers, and sector educational officers of 6 sectors of Nyanza District. The participants were sampled using a purposive sampling technique, while teachers and students were selected using simple random sampling. The participants were sampled using a purposive sampling technique, while teachers and students were selected using simple random sampling. The study adopted a survey research design that used questionnaires as instruments of data collection and key informant interviews as guides. Data were presented and analysed into tables and graphs using descriptive statistics (frequency, percentages, and mean) and using SPSS version 21.0. The study found that gender disparities influence students' academic performance in Physics in public secondary schools in Rwanda. For the first objective, 95.1% of students agreed or strongly agreed that improved assessment scores in Physics reflect their academic performance. For the second objective, 86.5% of students believed that equal access to resources and support is available for all genders, showing positive perceptions of gender equity in resources. However, 48.4% felt that societal gender stereotypes affect their motivation and confidence in Physics. A correlation analysis revealed a significant positive relationship (r = 0.732) between gender equity practices and student academic performance, indicating that reducing gender disparities can improve performance outcomes in Physics. Based on findings recommendations were given to the Ministry of Education to promote gender equality in Physics by ensuring equal resources, providing teacher training, and challenging stereotypes. Policy makers and MIGEPROF should support female students through reforms, scholarships, and advocacy. Schools and teachers must foster inclusive environments with equitable resources and gender-sensitive teaching strategies.
Influence of Individualized Instruction on Students’ Academic Achievements in Chemistry in Public Day Lower Secondary Schools in Rwanda: A Case of Kicukiro District
Authors: DUSHIMIMANA Gilbert , Nduta Kiarie Martha
Published: November 2024

This study was to find out the influence of individualized instruction on the learners' academic achievements in Chemistry in Public Day secondary schools in Kicukiro district, Rwanda. Specifically, this study determined the influence of pacing on students’ academic achievements in Chemistry in public day lower secondary schools in Kicukiro district, It also assessed the influence of student’ tutors on students’ academic achievements in Chemistry in public day lower secondary schools in Kicukiro district, Kigali city, and thirdly it examined the influence of frequent evaluations on students’ academic achievements in Chemistry in public day lower secondary schools in Kicukiro district, Kigali city. This research targeted students from lower secondary public schools, Chemistry teachers, and directors of studies. The sample size of 388 respondents was calculated using the Yamane formula and was composed of 23 DOS, 44 teachers, and 321 students. The data was collected using questionnaires administered to students and teachers, while interviews were administered to the director of studies. Descriptive statistics like mean, percentages, and frequency were used to analyze the data. The study revealed that a significant majority of teachers and students recognize the motivational benefits of hands-on laboratory experiments and group discussions in Chemistry. Notably, 61.4% of teachers and 68.2% of students agreed that independent learning and peer tutoring enhance understanding and performance in Chemistry. Furthermore, 61.4% of teachers emphasized the role of frequent evaluations in maintaining student attentiveness and improving academic performance. A strong positive correlation was identified between effective teaching practices, such as pacing and frequent assessments, and enhanced student outcomes, with a p-value of less than 0.05. In light of these findings, in order to improve Chemistry students' academic achievements, teachers should receive professional development training, parents should be involved, regular feedback mechanisms, and continuous monitoring and evaluation are suggested for individualized instruction strategies.
Cooperative Learning Approaches and Students’ Performance in Mathematics in Public Secondary Schools in Rwanda
Authors: Bugingo Isaac , Hesbon Opiyo Andala
Published: November 2024

The study investigated the impact of cooperative learning approaches on student performance in mathematics in public secondary schools in Rwanda. It focused on three key areas: the role of face-to-face interaction, the influence of group accountability, and the effect of interpersonal skills on students’ academic success. The target population included 101 students, 95 math teachers, and 35 school leaders, totaling 231 respondents from public secondary schools in Nyaruguru, with a sample size of 146 determined using the Yamane formula. Primary data were collected through questionnaires, while secondary data were obtained via interviews and observations. The study employed purposive, stratified, and simple random sampling, utilizing both quantitative and qualitative methodologies. Results indicated strong support for the benefits of cooperative learning. For face-to-face interaction, 71.9% of respondents strongly agreed that it promotes collaboration and problem solving, while 60.9% acknowledged it helps them identify their strengths and weaknesses quickly. Additionally, 61.3% felt that personalized support from teachers enhances their learning experience. Regarding group accountability, 71.9% noted that it motivates students to work harder and seek help, and 62.5% believed it fosters a sense of collective responsibility. Importantly, 73.4% agreed that group accountability contributes to a positive learning environment. The study recommends that educational planners create effective settings to enhance student achievement and encourage active engagement. Schools should integrate cooperative learning strategies into their curricula, and parents should be informed about their benefits to support group activities. Finally, the curriculum should allow flexibility to incorporate diverse cooperative learning methods, reflecting the varied impacts observed in the study.
Hygrothermal behavior of hemp concrete and conventional concrete: a comparative analysis
Authors: Chikhi Ali , Rebai Billel , Belhamri Azeddine , Hadji Malek , Derbal Rabah , Mamen Belgacem
Published: November 2024

This study presents an in-depth comparative analysis of the hygrothermal behavior of hemp concrete and conventional concrete, with a focus on their energy-saving potential and moisture regulation capabilities. Through detailed numerical simulations, the research examines how these two materials perform under identical climatic conditions, highlighting key differences in their ability to retain heat and manage moisture. The results reveal that hemp concrete provides up to 80% less thermal energy dissipation through building walls compared to conventional concrete, making it a far superior material for thermal insulation. In addition, hemp concrete exhibits improved moisture regulation, which not only enhances indoor comfort but also promotes healthier living environments by preventing excessive humidity. The study emphasizes hemp concrete's potential in significantly reducing energy consumption in buildings, thus promoting its application in sustainable construction. While hemp concrete lacks the mechanical strength required for load-bearing applications, its numerous environmental benefits, cost-effectiveness, and suitability for non-structural components make it an attractive choice for eco-friendly construction projects. This research also paves the way for future exploration of innovative uses for hemp-based materials in green building practices.
Percepção dos discentes sobre a eficácia da metodologia ativa “sala de aula invertida” no ensino da disciplina resistência dos materiais e seus desafios pedagógicos associados
Authors: Guimarães Gustavo Costa , Marreira Vinícius Fernandes , Porto Thiago Bomjardim , Estevão Ana Cecília
Published: November 2024

O presente trabalho investigou metodologias ativas no ensino da disciplina de Resistência dos materiais II, dando ênfase a importancia no aprendizado dos discentes. Apenas a aplicação de conceitos e exercícios geralmente não são bem explorados em sala de aula. Pensando nisso, foi feito um estudo introdutório sobre as diversas metodologias de ensino existentes para melhorar o nível de foco e entendimento dos discentes em relação à disciplina de Resistência dos materiais II, e chegou-se a conclusão que a metodologia “Sala de aula invertida” é uma boa alternativa de chegar-se ao resultado desejado. Com isso, foi preparada uma aula com o tema “Teorema de Castigliano” para ser lecionada aos discentes da disciplina de Resistência dos materiais II do curso de graduação de Engenharia Civil do Centro Federal de Educação Tecnológica de Minas Gerais  Campus X, no primeiro semestre do ano letivo de 2024, e após foi aplicada uma avaliação para analisar qual a eficácia da metodologia utilizada para estudo, com o objetivo de provocar maior motivação e interesse no aprendizado da disciplina de Resistência dos Materiais II, que é uma disciplina com elevada importancia em diversas áreas da Engenharia Civil, sendo muito importante em projetos estruturais. Após executar a metodologia, foi possível observar que o conteúdo proposto foi melhor assimilado pelos discentes que aplicaram a aula, em relação aos discentes que assistiram a mesma na figura de ouvintes. Essa conclusão foi baseada nos resultados da avaliação aplicada e no feedback dos discentes ouvintes.
Regression Analysis of Concrete Produced from Selected Wastewater Types
Authors: Akintola Lateef Oladotun , Ojo Ochuko Mary
Published: November 2024

This study investigates the effects of using various wastewater types on the strength characteristics of concrete through regression analysis. Given the construction industry's substantial freshwater consumption and the increasing scarcity of potable water, the research explores the viability of substituting wastewater in concrete production. Materials tested include cement, aggregates, and wastewater from kitchen, laundry, fish-pond, and paint industry, alongside potable water for control. Comprehensive tests on these materials, including physical, chemical, and bacteriological assessments, preceded the concrete mixing and casting process. The study involved curing concrete specimens and performing compressive and tensile strength tests at intervals of 7, 14, 21, and 28 days. Results indicated that while concrete made with potable water exhibited superior performance, wastewaters significantly influenced the mechanical properties of concrete, with potable water achieving the highest compressive and tensile strengths. Regression analysis confirmed a substantial impact of curing duration on strength development. The research concludes that water quality is crucial for concrete performance and suggests potable water for optimal strength, though wastewaters present a potential alternative, highlighting the need for further evaluation and adherence to quality standards.
Investigation of the Engineering Properties of Glass Fiber Reinforced Concrete (GRC) Cured with Internal Resistance
Authors: Koc Sıtkı , Subasi Serkan , Marasli Muhammed , Ozdal Volkan
Published: November 2024

In this study, it was aimed to produce glass fiber reinforced concrete (GRC) samples cured with internal resistance by placing resistance wires at different distances within the concrete molds and applying electric current at various voltages, while the mold surfaces were covered with stretch film. The engineering properties of these samples were then investigated. Previous studies have shown that the mechanical properties of conventional concrete, which were subjected to different curing methods, improved compared to samples that did not undergo any curing process. This study aimed to enhance both the engineering properties of the concrete samples and to accelerate the curing process. Glass fiber reinforced concrete (GRC) with dimensions of 50×50×4 cm was produced, and 25, 35, and 45V resistances were applied to three different molds with wire spacing of 5cm, 6cm, and 7cm. With this application, the GRC samples were subjected to internal resistance curing for the first 24 hours. By applying three different voltages to molds with three different wire spacings, 9 concrete samples were produced, along with 1 reference sample that did not contain any resistance wires and was not subjected to any curing process, making a total of 10 different concrete samples. After curing, the concrete samples were cut into 16cm×4cm×4cm GRC mechanical test specimens. The obtained specimens were tested for 7, 14, and 28 day compressive strength, flexural strength, unit weight, and ultrasonic pulse velocity. To examine the microstructure of the GRC samples, Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), and Fourier Transform Infrared Spectroscopy (FT-IR) analyses were conducted. These analyses investigated the physical and chemical development processes of the samples, mass losses, products formed after hydration, and structural behaviors. As a result, it was observed that the early-age strength properties of GRC samples cured with internal resistance showed a partial increase compared to the reference sample that was not internally cured, especially in the 7-day samples. In the 14 and 28-day strength comparisons, it was observed that the cured samples showed improvement in flexural strength. According to the data obtained, the samples subjected to 35 volts of electric current yielded better results, especially in the early ages, compared to the reference sample.
Garnotia (Poaceae: Garnotieae): A new generic record for the Flora of Himachal Pradesh, India
Authors: Saha Kuntal , Chandran Manoj , Negi Ranjana
Published: November 2024

Garnotia tenella a grass of moist rocky slopes of medium to high altitudes, has been documented for the first time from Himachal Pradesh, India. The genus Garnotia Brongn is also a new record for the flora of Himachal Pradesh. This communication provides detailed description, illustration, colour photograph, geo-coordinates map, phenology, habitat and the distribution of the genus.
The Zariski topology on the graded second spectrum of a graded module
Authors:   Department of Mathematics and Statistics, Jordan University of Science and Technology, P.O.Box 3030, Irbid 22110, Jordan, Khaldoun Khaldoun ,   Department of Mathematics and Statistics, Jordan University of Science and Technology, P.O.Box 3030, Irbid 22110, Jordan, Al-Zoubi Khaldoun Al
Published: November 2024

Let R be a G-graded ring and M be a G-graded R-module. The graded second spectrum of M, denoted by Specs G(M), is the set of all graded second submodules of M. In this paper, we define a topology on Specs G(M) which is analogous to that for SpecG(R), and investigate several topological properties of this topology.
Enhancing Convolutional Neural Network for Image Retrieval
Authors:   Computer Science Department, University of Technology, Baghdad, Iraq, Zena Zena ,   Computer Science Department, University of Technology, Baghdad, Iraq,   Department of Computer Science, College of Education for Pure Science (Ibn al-Haitham), University of Baghdad, Baghdad, Iraq,   Applied Science Research Center. Applied Science Private University, Amman, Jordan; Jadara University Research Center, Jadara University, Jordan, Sadiq Ahmed T. , Akif Omar Z. , El-kenawy El-Sayed M. El
Published: November 2024

With the continuous progress of image retrieval technology, the speed of searching for the required image from a large amount of image data has become an important issue. Convolutional neural networks (CNNs) have been used in image retrieval. However, many image retrieval systems based on CNNs have poor ability to express image features. Content-based Image Retrieval (CBIR) is a method of finding desired images from image databases. However, CBIR suffers from lower accuracy in retrieving images from large-scale image databases. In this paper, the proposed system is an improvement of the convolutional neural network for greater accuracy and a machine learning tool that can be used for automatic image retrieval. It includes two phases; the first phase (offline processing) consist of two stages; stage1 for CNN model classification while stage 2 for extracts high-level features directly from CNN by a flattening layer, which will be stored into a vector. In the second phase (online processing), the retrieval depends on query by image (QBI) from the system, which relies on the online CNN model stage to extract the features of the transmitted image. Afterward, an evaluation is conducted between the extracted features and the features that were previously stored by employing the Hamming distance to return all similar images. Last, it retrieves all the images and sends them to the system. Classification for images was achieved with 97.94% deep learning results, while for retrieved images, the deep learning was 98.94%. For this paper, work done on COREL image dataset. The images in the dataset used for training are more difficult than image classification due to the need for more computational resources. In the experimental part, training images using CNN achieved high accuracy, proving that the model has high accuracy in image retrieval.
Accurate Numerical Method Using Exponential Spline for solving boundary Value Problems
Authors:   Department of Mathematics, College of Education, University of Sumer, Thi-Qar, Iraq, Ahmed Ahmed
Published: November 2024

This study introduces a precise numerical technique employing exponential splines for singly perturbed singularity boundary values problems. A numerical scheme is devised to address issues encountered in diverse scientific and engineering domains. The framework consists of a triad of nonlinear equations. The approach is employed in several test cases to demonstrate accuracy and implementation.
Songs of War
Authors: Wickström David-Emil
Published: November 2024

Russia's war on Ukraine has highlighted how Russia and Ukraine conceptualize differing narratives of the region's history, and how this is reflected in current popular music. This article looks at how popular music is used by both conflict partners by analyzing songs published on social media during the full-scale invasion's first phase. Here, a pattern emerges: songs being reworked, memetic songs drawing on specific occurrences or weapons emerging, and previously existing songs being used as anthems. While these strategies have been heard in past wars, a new dynamic is at work: The output from the current war is interesting due to the use of footage from the battlefield, the speed of reaction and the distribution of the songs aided by social media, and the continuity of musical material as well as support from outsiders. These processes have made social media platforms an important part of the ongoing war.
"Karabakh or Death, no Other Way!": Hip Hop and War in Post-Soviet Azerbaijan
Authors: Dessiatnitchenko Polina
Published: November 2024

In post-Soviet Azerbaijan, hip hop is the main musical genre that articulates the ongoing Nagorno-Karabakh conflict that escalated into two wars (1992-94; 2020). The creativity of hip hop artists is a prime example of intertextuality as they reference, quote, and remake texts of previous Azerbaijani hip hop songs, thus offering accounts of the way the conflict unfolded throughout history. Yet their creativity goes further than providing narratives: it becomes a powerful tool to promote nationalist imagery and inspire patriotism. In this paper, I rely on interviews and first-hand experience while doing fieldwork in Azerbaijan when the Second Karabakh War erupted, and analyze popular hip hop songs, focusing on discourses that arise as part of hip hop’s generic intertextuality. Specifically, I focus on the figure of the martyr that continuously reappears to accentuate the topic of sacrifice and to trigger affects at the core of mobilization and patriotism.
Nghiên cứu phân tích khả năng ước tính lượng rác thải nhựa phát tán trực tiếp ra môi trường biển từ các hoạt động kinh tế - xã hội trên biển Đông
Authors: Đỗ Thị Phương Thảo , Nguyễn Gia Trọng , Dương Anh Quân , Nghiêm Văn Tuấn
Published: November 2024

Các nguồn phát sinh rác nhựa từ biển thường liên quan đến các hoạt động giải trí, đánh bắt, nuôi trồng hải sản và vận tải biển. Rác thải từ các hoạt động kinh tế-xã hội trên biển chủ yếu do hành khách trên tàu thải ra hoặc do xử lý rác nhựa sau thu gom, do ngư cụ hàng hải và ngư cụ bị bỏ rơi. Rác nhựa ở biển có thể nằm trên các đường bờ biển, nổi trên bề mặt, trong cột nước hoặc chìm xuống đáy biển. Nghiên cứu này sẽ tập trung phân tích, đánh giá những nguy cơ và mối liên hệ trực tiếp giữa hoạt động kinh tế-xã hội trên biển với lượng chất thải nhựa phát tán trực tiếp ra môi trường biển nhằm đưa ra cách phân loại rác nhựa theo nhóm các hoạt động kinh tế-xã hội trên biển Đông và đề xuất phương pháp định lượng lượng rác thải nhựa theo sự phân loại này. Kết quả cho thấy, những khu vực có mật độ tàu thuyền hoạt động nhiều cũng như có các hoạt động kinh tế-xã hội phát triển thì có mối tương quan tỉ lệ thuận với rác nhựa và các vật liệu thải trôi nổi trên biển Đông.
Impact of High-Power Cosh-Gaussian Beam on Second Harmonic Generation in Collisionless Magnetoplasma
Authors: Singh K. , Walia K.
Published: November 2024

The impact of high power Cosh-Gaussian (ChG) beam on Second harmonic generation (SHG) in Collisionless magnetoplasma is explored in present work. Whenever the input beam propagates along external magnetic magnetic field direction, then there are two propagation modes viz. extraordinary mode and ordinary mode. The modification in magnetic field strength causes redistribution of carriers. The density gradients get established in plasma in a normal direction to input wave due to ponderomotive force. Further, there is production of electron plasma wave (EPW) at input wave frequency due to density gradients. EPW nonlinearly interacts with pump wave causing generation of 2nd harmonics. The 2nd order differential equation (ODE) for beam width of and efficiency of 2nd harmonics are derived through well-known paraxial theory approach. RK4 method is employed for carrying out numerical calculation of nonlinear ODE along with efficiency of 2nd harmonics. Impact of change in selective laserplasma parameters and externally applied magnetic field on beam waist of input wave and efficiency of SHG are also explored.
Когерентный контроль наинизших уровней мелкой примеси в монослойном графене с помощью модулированных по фазе лазерных импульсов
Authors: Джотян А. П. , Джотян Г. П. , Аветисян А. А.
Published: November 2024

На основе вариационного подхода получены энергии основного 1S и первых возбужденных состояний 2P, 2S мелкой донорной примеси в монослое графена с открытой энергетической щелью в перпендикулярном магнитном поле. Показано, что энергии низших состояний и расстояние между ними можно перестраивать в области нескольких десятков мэВ, изменяя значение параметра тонкой структуры и величину магнитного поля. На основе полученных результатов рассчитаны дипольные матричные элементы для оптических переходов 1S–2P+ и 2S–2P+. Далее рассматривается когерентный перенос населенности между двумя метастабильными состояниями 1S и 2S, создаваемый одним частотно-модулированным (чирпированным) лазерным импульсом. Показано, что такой перенос населенности может осуществляться без значительной заселенности возбужденного состояния, если изначально заселенность рассматриваемой квантовой системы была локализована в одном из метастабильных состояний. Дополнительно исследован случай, когда система изначально находилась в суперпозиции двух метастабильных состояний.
The energies of the ground 1S and first excited states 2P, 2S of a shallow donor impurity in graphene monolayer with opened energy gap in a perpendicular magnetic field are obtained using a variational approach. It is shown that the energies of the lowest states and distance between them can be tuned in the region of few ten meV by changing the value of the fine structure parameter and magnitude of the magnetic field. A model of a soft Coulomb interaction is suggested. Based on the results obtained, the dipole matrix elements for optical transitions 1S – 2P+ and 2S – 2P+ are calculated. In the next step, coherent population transfer between the two metastable states 1S and 2S produced by a single frequency modulated (chirped) laser pulse is considered. It is demonstrated that such population transfer may be performed without considerable population of the excited state 2P+ if initially population of the quantum system under consideration is localized in one of the metastable states. Additionally, the case when the system is in superposition of two metastable states initially is investigated.
Квантовая запутанность в смешанном спиновом тримере (1/2, 1/2, 1) сне сохраняющейся намагниченностью при конечных температурах
Authors: Адамян Ж․ А.
Published: November 2024

Рассмотрена модель молекулярного магнита, состоящего из трех магнитных ионов со спинами (1/2, 1/2, 1) и несохраняющейся намагниченностью, возникающей из-за неоднородности можителей Ланде. Основной задачей данного исследования является выяснение свойств квантовой запутанности состояний системы при процессах намагничивания (размагничивания) при конечных температурах. Показано, как наличие неоднородных можителей Ланде приводит к существенному усилению квантовой запутанности и иногда – к расширению температурного интервала, в котором спины (псевдоспины) магнитных ионов модели находятся в запутанных состояниях.
Синтез и исследование диэлектрических свойств композитного материала, состоящего из стеклокерамики на основе перлита и TiO2
Authors: Григорян Л. Н. , Петросян П. Г.
Published: November 2024

Предложен метод низкотемпературного синтеза композитного материала стеклокерамика – TiO2. Исследованы частотные зависимости диэлектрической проницаемости и диэлектрических потерь в диапазоне частот 0–20 МГц. Показано, что увеличение содержания TiO2 в композитном материале приводит к росту диэлектрической проницаемости и к уменьшению диэлектрических потерь. Методом рентгеновской дифракции исследованы структура и фазовый состав композитного материала и показано, что во время низкотемпературной термообработки компоненты, входящие в состав композитного материала, не образуют новых фаз, и полученный материал можно представить как смесь невзаимодействующих компонентов, хаотично распределенных в пространстве.
A method of low-temperature synthesis of glassceramic – TiO2 composite material is proposed. Frequency dependences of dielectric permittivity and dielectric losses in the frequency range of 0–20 MHz are investigated. It is shown that an increase in the TiO2 content in the composite material leads to an increase in dielectric permittivity and to a decrease in dielectric losses. The structure and phase composition of the composite material were investigated by X-ray diffraction method, and it was shown that during low-temperature heat treatment the components of the composite material do not form new phases and the obtained material can be represented as a mixture of non-interacting components chaotically distributed in space.