bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring the use of technological innovations in agricultural farms: a case of South Africa
Authors: Makgopa Sipho
Published: December 2024

Agricultural farms play a crucial role in providing food security in South Africa and other parts of the world. These agricultural farms are faced with challenges such as stock theft, equipment theft and armed robberies. This paper aimed to explore the use of technological innovations on agricultural farms to detect and prevent crime. Complexity theory was adopted to achieve the aim of the paper. Qualitative research was adopted to achieve the research objective and in-depth interviews were conducted with farm managers in South Africa. Content analysis was used with the aid of Atlas.ti version 8 to analyse the primary data. The findings uncovered that technological innovation devices such as motion sensors, monitoring surveillance camera devices and drones are used on agricultural farms. Despite these devices' use, agricultural farms face security budget constraints. This paper makes a significant contribution by offering recommendations to key stakeholders and directions for future research on the topic.
Analisis Modal Sosial dan Kemiskinan: Studi Cross Sectional 34 Provinsi di Indonesia
Authors: Mukharohmah Maulia Siti , Wulandari Meisyaroh Catur , Naufal Hanif Afif
Published: December 2024

Research related to social capital and poverty is still rare in Indonesia. Thus, this research aims to analyze social capital by examining three dimensions: trust, social participation, and tolerance, as reflected in the social capital index,  and their impact on poverty in Indonesia. This research involved secondary data from Statistics Indonesia in the book Social Capital Statistics, published in 2021. This research used three independent variables: the social capital index for trust, social participation, and tolerance. Meanwhile, the dependent variable was the percentage of poor people in each province in Indonesia. The data were analyzed using a multiple linear regression method with hypothesis testing, namely classical assumptions. The results showed that social capital, as described in the social capital index for trust and social participation, significantly influenced poverty reduction. Meanwhile, the social capital index for tolerance had a minimal effect. These findings suggest that government efforts should focus on increasing community participation to develop social capital as one of the efforts to deal with poverty alleviation in Indonesia.
HYBRID COMMUNICATION TRAINING TECHNIQUE TO SOLVE WARTIME ACADEMIC AND SAFETY ISSUES: PERCEPTION OF MEDICAL STUDENTS
Authors: Gutor Lyubov , Sodomora Pavlo
Published: December 2024

Contemporary global epidemiological and wartime issues emphasize the development and application of academic techniques enabling the maintenance of qualitative education and training of future professionals. Healthcare is the direction requiring the most attention as the number of individuals seeking physical and mental care is continuously growing, while effective healthcare outcomes depend significantly on the well-developed communication skills of physicians. The research aims to study the perception of a hybrid communicative training technique (HCTT) suitable for in-class, online (synchronous and asynchronous), and hybrid types of learning and confirm that the development of a hybrid communicative training technique (HCTT), taking into account wartime safety and technical problems, can solve current educational tasks. The HCTT incorporates communication basics and the English language, promoting actualization, digitalization, and internationalization of higher medical education. Its effectiveness was evaluated by the survey, directed at defining medical students’ perception of the technique. The research involved 407 participants. The data were analyzed using a series of theoretical and empirical methods. The results were verified statistically. The difference between the groups of categorized indices was studied using the table of frequencies and defined by Pearson’s Chi-Squared Test. It was considered statistically significant if p<0.05. The survey has shown that the responders highly evaluated the quality of the implemented HTCC. The analysis of HCTT components revealed significant differences concerning students’ positive and negative perceptions of the technique. The survey results prove that medical students appreciate the HCTT and evaluate its quality as sufficient. According to the research results, digital storytelling is a promising communication training technique that should be further researched and implemented with the aim of improving communication skills and English mastery. The research confirms that HCTT can be used to develop the communication skills of future physicians by upgrading their reading, listening, and speaking competence. In addition, HCTT can be used as a training tool for Step 1, licensing examination, and Medical English exams, as it is based on professional pre-clinical and clinical topics and includes tasks directed at developing professional thinking, medical vocabulary, and terminology.
The Pushing Mechanism Design of Jumping Robot
Authors: Zinko Roman , Lobur Mykhaylo , Zdobytskyi Andriy , Stefanovych Tetyana
Published: December 2024

. In areas hazardous for humans, jumping robots serve as substitutes. They exhibit enhanced mobility when traversing uneven or rugged terrain, significantly broadening the application potential of mobile devices for territory surveillance, environmental monitoring after earthquakes, and other emergency situations where robot movement relies solely on jumping.
Various design solutions for performing jumps are known, each with its own advantages, disadvantages, and implementation based on specific structural elements. To propel robots off the ground, different actuators can be used: spring-based mechanisms (with or without additional kinematic links), pneumatic or hydraulic systems, and those powered by fuel-air mixtures. Spring-based impact systems execute jumps by converting the potential energy stored in the spring into the kinetic energy of the robot's body.
The objective of the research is to justify the feasibility of developing cam mechanisms for jumping robots, taking into account the direction of their jumps in accordance with the distribution of forces and applied loads.
The methodology involved determining the impact force of the hammer in the cam mechanism under static loading. A calculation method for the parameters of the impact system was developed. Computer modeling of the spring compression phase using a lever device was conducted. The structural and technological parameters of the robot were substantiated, considering its mass, spring stiffness, impact system, and the cam profile, using Autodesk Inventor software. Calculations of forces, power, and design parameters of the impact system were presented, along with a detailed analysis of all phases of the jumping process. These phases include spring compression using a lever device, removal of the compression device, spring release, and the final ballistic phase (flight phase).
The methodology allowed for determining the design parameters of the cam mechanism based on specified kinematic and dynamic parameters of the jumping process.
Zirconium-based tribotechnical self-lubricating detonation coatings
Authors: Shchepetov Vitaly , Fialko Nataliia , Bys Serhii , Zvorykin Constantine
Published: December 2024

The article is devoted to the current problem of development and study of properties of highly effective antifriction coatings, the use of which provides self-lubrication due to the formation of solid lubricating oils.
The purpose of the work is related to the study of the structural-phase composition and study of tribological properties of detonation coatings of the Zr-Ti-V-Cr-Si-C-MgC2 system under load conditions in the sliding velocity field.
The generalized results of theoretical and applied research according to the objectives of this work are presented. The optimum structural and phase composition of the coatings under study has been established. The technology for obtaining a powder mixture has been developed and the technological process for forming zirconium-based coatings has been improved. According to the results of the studies, it is noted that for the conditions under consideration, both the presence of a thin graphite layer and the formation of dispersed secondary structures are a means of self-regulation of the wear process. Their combined action provides modification of the friction surface and shields unacceptable seizure processes. The results of the studies have shown that the developed coatings demonstrate high and stable antifriction properties in the entire load-speed range of tests.
The proposed innovative zirconium-based coatings can be widely used to restore or strengthen parts by any methods using powder materials. The most effective application of these coatings corresponds to situations in which the use of traditional lubricating oils is undesirable.
French-Language Public Administration Research on Social Equity: A Systematic Literature Review
Authors: Biaou Gino , Charbonneau Étienne
Published: December 2024

Despite the availability of freely accessible translation tools, research conducted in languages other than English is often overlooked. Findings from foreign contexts are lost, undermining the boundary conditions of theories. This systematic literature review takes stock of methods, theories, and practical recommendations developed in French-language social equity research. Overall, the results suggest that French-language social equity research offers relevant but not in-depth practical recommendations, encompasses a small proportion of papers referring to theories, and is more qualitative method-oriented than quantitative. Our results complement previous findings suggesting the dominance of the quantitative approach to social equity research by bringing to light many qualitative studies. Crucially, unlike English-language social equity research, this study suggests that French-language social equity research rarely focuses on race and ethnicity. Inter-organizational equity, along with regional, intergenerational, and gender equity are frequent loci. The finding of this study bridges a heeded segment of Public Administration scholarship, fostering knowledge sharing across languages and scholarly communities.
Las mujeres en Tlaxcala. Evolución y factores locales de su participación política
Authors: Higueras Emelia
Published: December 2024

La evolución de la participación política de las mujeres en Tlaxcala ha tenido altibajos, pese a las reformas electorales y el financiamiento público a los partidos políticos en programas de fortalecimiento y capacitación sobre de liderazgo político; por ello, ellas siguen sin consolidar trayectorias políticas significativas para ganar más cargos de elección popular e impactar en los cambios del comportamiento electoral en el votante. De ahí surge la pertinencia de revisar, a partir de la percepción ciudadana, los factores institucionales y sociales que continúan limitando el acceso a cargos públicos. Metodológicamente se levantó una encuesta local para recopilar la percepción ciudadana; comprobaron las razones por las que no ganan más cargos de elección popular, concentrándose los porcentajes más significativos en el estigma y desprestigio de las mujeres en la política (29%), la falta de apoyos partidistas (23%) y la experiencia política (16%).
Significados sociales y efectos transformadores de las prácticas artísticas
Authors: Allegrini Giulia , Izci Orkide , Paltrinieri Roberta
Published: December 2024

En este ensayo pretendemos contribuir al debate sobre el papel de las prácticas artísticas en la activación de procesos de cambio social. En particular, se explora el papel de las prácticas artísticas performativas en la activación de espacios de participación y ciudadanía, entendidos como campo de exploración creativa de imaginarios contrahegemónicos, de creación de comunidad y solidaridad en clave interseccional, es decir, de formas de relacionalidad basadas en la valorización de la diversidad. También se presentan los resultados de una investigación realizada por el Departamento de Artes de la Universidad de Bolonia dentro del proyecto europeo «Performing gender: Dancing In Your Shoes». El proyecto llevó a cabo varias prácticas creativas dialógicas entre coreógrafos y comunidades locales en torno al tema de las identidades y la construcción de la solidaridad.  El ensayo se centra específicamente en las narrativas que surgieron en relación con estos dos temas y el proceso transformador experimentado.
Equilibrium finite element membranes with body loads
Authors: Ramsay Angus , Maunder Edward
Published: December 2024

This article describes recent developments in membrane equilibrium finite elements, building on earlier work by incorporating excitation in the forms of thermal and mechanical body loading. The inclusion of these types of loading enables more general applications of the element in engineering design and analysis, particularly in scenarios where the strong equilibrium achieved by such elements may be effectively utilized. The methodology presented in this article has been implemented in a computer program and is demonstrated through numerical examples. The results are compared with independently obtained numerical solutions using conforming finite elements. The article concludes with suggestions for further work.
Incorporating Indigenous Knowledge Systems into AI Governance: Enhancing Ethical Frameworks with Maori and Navajo Perspectives
Authors: Ray Shawn
Published: December 2024

This paper proposes a paradigm shift in AI governance by integrating Indigenous knowledge systems to foster inclusivity and cultural sensitivity. Traditional AI governance frameworks are primarily Western-centric, often overlooking the community-oriented values and ethical considerations essential to Indigenous cultures. This study highlights principles such as Kaitiakitanga from Māori culture, which emphasizes guardianship and environmental stewardship, and Hózhó from Navajo philosophy, which stresses harmony and balance. By engaging Indigenous leaders and knowledge holders throughout the AI lifecycle, this approach ensures technology aligns with community values, addressing critical issues like data sovereignty, ethical technology use, and cultural sensitivity. This paper underscores the necessity of relational accountability in AI governance, which includes prioritizing the health of ecosystems alongside community welfare. This model advocates for an AI framework that not only rectifies historical marginalization but also empowers Indigenous communities to shape the technologies affecting their lives. Furthermore, integrating Indigenous perspectives strengthens the ethical foundation of AI systems, advancing sustainability, social justice, and cultural responsiveness in technology applications. The proposed framework illustrates how Indigenous ethical concepts can transform AI governance by aligning technological progress with values of ecological stewardship and community welfare, creating an AI landscape that respects and reflects diverse cultural contexts. Ultimately, this research demonstrates that Indigenous knowledge systems can significantly enhance AI’s effectiveness and equity, paving the way for more sustainable and culturally attuned technological solutions.
Low-Cost and Portable Biosensor Based on Monitoring Impedance Changes in Aptamer Functionalized Nanoporous Anodized Aluminum Oxide Membrane
Authors: Jiang Nianyu , Shrotriya Pranav
Published: December 2024

We report a low-cost, portable biosensor composed of aptamer functionalized nanoporous anodic aluminum oxide (NAAO) membrane and a commercial microcontroller chip-based impedance reader suitable for electrochemical impedance spectroscopy (EIS) based sensing. The biosensor consists of two chambers separated by an aptamer-functionalized NAAO membrane, and the impedance reader is utilized to monitor transmembrane impedance changes. The biosensor is utilized for detecting amodiaquine molecules using an amodiaquine-binding aptamer (OR7) functionalized membrane. Aptamer functionalized membrane is exposed to different concentrations of amodiaquine molecules to characterize the sensitivity of the sensor response. The specificity of the sensor response is characterized by exposure to varying concentrations of chloroquine, which is similar in structure to amodiaquine but does not bind to the OR7 aptamer. A commercial potentiostat is also used to measure the sensor response for amodiaquine and chloroquine. The sensing response measured using both the portable impedance reader and commercial potentiostat showed a similar dynamic response and detection threshold. The specific and sensitive sensing results for amodiaquine demonstrate the efficacy of the low-cost and portable biosensor.
Advances in Control Techniques for Rehabilitation Exoskeleton Robots: A Systematic Review
Authors: Mashud Gazi Abdullah , Hasan SK , Alam Nafizul
Published: December 2024

This systematic review explores recent advancements in control methods for rehabilitation exo-skeleton robots, which assist individuals with motor impairments through guided movement. As robotics technology progresses, precise, adaptable, and safe control techniques have become ac-cessible for effective human-robot interaction in rehabilitation settings. Key control methods, including Computed Torque and Adaptive Control, excel in managing complex movements and adapting to diverse patient needs. Robust and Sliding Mode Controls address stability under unpredictable conditions. Traditional approaches, like PD and PID control schemes, maintain stability, performance and simplicity. In contrast, Admittance Control enhances user-robot in-teraction by balancing force and motion. Advanced methods, such as Model Predictive Control (MPC) and Linear Quadratic Regulator (LQR), provide optimization-based solutions. Intelligent controls using Neural Networks, Deep Learning, and Reinforcement Learning offer adaptive, patient-specific solutions by learning over time. This review provides an in-depth analysis of these control strategies by examining advancements in recent scientific literature, highlighting their potential to improve rehabilitation exoskeletons, and offering future recommendations for greater efficiency, responsiveness, and patient-centered functionality.
Evolving Practices and Challenges of Good Corporate Governance in NGOs
Authors: Jelovac Dejan
Published: December 2024

Organizations in the Third sector operating in non-Western contexts need to have enhanced governance models that match the need to ensure ethical and efficient commercial operations within their mission. The key research question of present article is how the implementation of GCG in Slovenian NGOs will contribute to strengthening their legitimacy, stakeholder trust, and effectiveness in achieving social goals. The article develops a conceptual model which should include all key variables, mediators, moderators and latent constructs in itself, serving as a theoretical basis for future empirical studies and best practices. The main finding is that the GCG should be organized as a single-track administrative body of public institutes in the future. Better single-truck GCG regulations, which would presuppose amendment of legislation, can be created and executed in practice only by working together, with the public, regulatory agencies, academic community, NGOs, and prominent intellectuals.
A MODIFIED NUMERICAL METHOD OF DETERMINING HYDRAULIC SYSTEM PARAMETERS FOR THE DEVELOPMENT OF MATHEMATICAL MODELS AND INFORMATION COMPLEXES OF COMPUTER SIMULATION MODELS FOR INDUSTRIAL CHEMICAL PRODUCTION
Authors: Ponomarenko Ye. D. , Myronov A. M. , Ilchenko M. V. , Gorbunov K. O. , Bykanov S. M. , Ponomarenko G. V. , Solovei L. V.
Published: December 2024

The paper introduces a modified numerical method for determining the parameters of hydraulic systems used in mathematical modeling and simulation-based computer systems for industrial chemical production. It explores the dynamics of fluids, gases, and their mixtures as they traverse pipelines equipped with valves, compressors, and other complex components. Traditional methods for solving nonlinear equation systems often face limitations, including sensitivity to initial approximations and the need for relaxation coefficient adjustments, which complicate simulation processes.
The proposed method converts nonlinear equations into an optimization problem, us- ing the Nelder-Mead algorithm to minimize deviations between initial estimates and comput- ed parameters. This derivative-free approach employs a simplex geometric transformation, overcoming issues associated with iterative methods and delivering high accuracy, stable convergence, and computational efficiency. Its adaptability makes it suitable for handling in- tricate hydraulic systems.
To validate the method, a practical example involving a pipeline system with multiple restricting devices is analyzed. The mathematical model includes equations for pressures and flow rates, supplemented by material balance constraints at branching points. Numerical ex- periments evaluate how input pressure influences system parameters, demonstrating the mod- el's robustness and precision. The results confirm that the method accurately simulates system parameters under steady-state conditions and identifies critical optimization points.
This innovative approach offers significant advantages for designing and managing industrial chemical facilities. By simplifying model construction, enhancing reliability, and accelerating simulation processes, the method provides a powerful tool for optimizing the op- eration and control of complex technological systems.
INFLUENCE OF MICROWAVE ACTIVATION OF COAL ON ITS PETROGRAPH-IC PROPERTIES
Authors: Chemerynskyi M. S. , Pinchuk V. O. , Sharabura T. A.
Published: December 2024

Despite the development of renewable sources, coal occupies an important place in the energy balance of many countries, especially those with large reserves. One of the ways to influence the characteristics of coal and add specified properties to it is its preliminary microwave activation.
As a result of the studies, it was found that with microwave activation with an electromagnetic field power of 750 W for 240 s, an ambiguous effect on the characteristics of coal samples is observed, namely, coal with R0 greater than 1.16 before activation, microwave activation occurs faster, while the vitrinite reflectivity increases to 1.58 %, the yield of volatile substances and the thickness of the plastic layer decrease. Coals of a high stage of metamorphism are activated faster due to a denser structure. The presence of a more ordered structure than less metamorphosed coals, during the activation process, the condensed carbon layers come closer together, which ultimately increases their metamorphism stage.
On the contrary, for coal with R0 less than 1.03 before activation, microwave activation is slower, while the vitrinite reflectance index decreases to 0.75 %, the yield of volatile substances and the thickness of the plastic layer increase. Obviously, this is due to the fact that coal of a low metamorphism stage is characterized by a less dense structure and more time is needed for its activation. Also, to increase the metamorphism stage, it is necessary to apply more energy so that the formed radicals and structural units connect with each other and form an ordered aromatic structure. Therefore, for coals of a low metamorphism stage, the activation time should be longer.
The research results indicate the possibility of changing the coal metamorphism stage, which will increase the efficiency of coal processing processes, reduce energy costs and minimize harmful emissions due to the use of microwave technologies. In addition, the use of microwave activation can expand the raw material base for various coal technologies, especially in conditions of fuel shortage.
Calculation of the magnetic field of a low-voltage busbars of a built-in transformer substation
Authors: Pelevin Dmytro
Published: December 2024

The purpose of the work is to develop an analytical method for calculating the magnetic field near a low-voltage busbars of a 6(10)/0.4 kV transformer substation built into a residential building of an old building, which has no restrictions on the distance to the calculation zone. Using the Bio-Savar’s law and the principle of superposition, a mathematical model of the magnetic field of individual straight sections of the busbars has been constructed and an analytical method for calculating the magnetic field of a low-voltage busbars of a transformer substation has been developed, determining the induction of its magnetic field as a whole. The developed method for calculating the magnetic field has been verified, by means of experimental studies on the magnetic measuring stand of the institute of a full-scale laboratory model of a low-voltage busbars of a transformer substation with a power of 100 kVA, that confirmed the coincidence of the calculation results and the experiment with a spread of no more than 5 %. The character of the distribution of the magnetic field over a three-phase low-voltage busbars was determined, which is close to a dipole, which determines the possibility of its effective reduction by simpler active shielding systems with one compensation winding. Wide application of the developed methodology is planned in the creation of new methods and reduction means the magnetic field level of existing built-in transformer substations 6(10)/0.4 kV with a power of 100–1260 kVA to a level that is safe for the population.
Genius engineer and inventor Hugo Stotz. To the 100th anniversary of the miniature circuit breaker
Authors: Grechko Oleksandr
Published: December 2024

The article presents a scientific and historical essay on the main stages of the life of a famous German engineer and inventor, the author of the invention of a miniature circuit breaker – Hugo Stotz. The work for the first time summarizes and systematizes information about historical events that were directly related to the Hugo Stotz person as an inventor of a miniature circuit breaker, therefore, in fact, the events that preceded, accompanied and occurred after the invention of the revolutionary electric device, which fundamentally changed human life. The little-known interesting facts and details from the life of an outstanding inventor are taken into account, which contributes to a better understanding of historical events that occurred during the era of the emergence of miniature circuit breakers as protective devices. The article analyzes the role of the personality of Hugo Stts and his company in the invention of a miniature circuit breaker. The scientific and historical essay presented in the article is also aimed at paying tribute to the memory of the outstanding inventor in the field of electrical engineering Hugo Stotz. The large number of various modifications of miniature circuit breakers from many manufacturers for various industries that currently exist on the world market of electrical equipment are designed practically on the same principle as the circuit breaker of Hugo Stotz, invented 100 years ago. The paper presents the main historical stages of development of miniature circuit breaker designs from their implementation in a cork form housing to production in a modular design. The work shows that the world market for circuit breakers is extremely large, which makes this electrical device an integral part of electrical safety in residential buildings and industrial enterprises
Education for Sustainable Development Based of Technological Pedagogical and Content Knowledge using Mixed-Methods Approach in Physics Teaching
Authors: Ariska Melly , Anwar Yenny , Widodo Ari , Sari Diah Kartika , Yusliani Novi , Rahmannisa Amanda , Az Zahra Lutfiah , Milka Ikbal Adrian , Al Fatih Zaky
Published: December 2024

Sustainable development aims to raise the standard of living for present and future generations. The Sustainable Development Goals (SDGs) are a set of 17 objectives related to sustainable development. Education for Sustainable Development, or ESD, is one initiative to achieve the SDGs. Presenting the findings of literature research on the features and use of ESD in science education is the goal of this paper. The primary source material for this literature study came from seven publications published in different journals. This study utilized a mixed-methods approach with a concurrent triangulation design involving questionnaires, interviews, and FGDs with 78 physics teachers. The TPACK scores showed a mean of 3.10, with the highest score in Attitude (3.27) and the lowest in Inquiry (3.04). The analysis's findings indicate that 1) Eight critical competencies are thought to be crucial for promoting sustainable development. 2) Learning tools, learning media, and learning models are ways ESD can be included in science education. These findings demonstrate that integrating ESD capabilities into science instruction can promote sustainable development and help attain the SDGs. The results highlight the need for targeted training in inquiry-based approaches and technology integration to enhance ESD implementation in physics education.
Generating Interest in Literacy among Elementary School Students through Gamification Technology
Authors: Dinihari Yulian , Rafli Zainal , Boeriswati Endry , Hidayat Fahmi
Published: December 2024

This research focuses on grade 5 elementary schools with the main aim of increasing students' interest in literacy through the application of gamification technology concepts. The implementation method is descriptive qualitative: 1) identifying the needs and preferences of students in elementary schools through surveys and observations. Based on these findings, a gamification platform was designed that combines game elements with literacy material according to the curriculum. 2) Integrating gamification into learning activities for grade 5 elementary school students. The implementation process is carried out collaboratively involving teachers, students and parents. The research was conducted at SD Negeri Pasar Baru 03, Central Jakarta. The results of the research can provide valuable input for improving teaching methods in elementary schools, especially literacy, and provide a basis for similar approaches in other schools. This research not only creates positive changes in elementary school students' literacy interest, but also contributes to the literacy of society in general by fostering a culture of reading and critical thinking from a young age. Furthermore, the integration of gamification in literacy education could serve as a model for enhancing other educational subjects, promoting a more engaging and effective learning environment across different disciplines.
Development of Microlearning Modules based on Candi Singasari as a Culturally Responsive Teaching to Enhance Problem-Solving Ability
Authors: Utami Wikan Budi , Setyosari Punaji , Sa'dijah Cholis , Praherdhiono Henry
Published: December 2024

The aim of this research is to find out how the implementation of the development of a microlearning module containing Culturally Responsive Teaching at Candi Singasari can improve students' problem solving abilities. The development model in this study refers to the ADDIE development model. The study involved one media expert, one material expert, and the research subjects taken came from class X students in Malang class X students. Data collection was carried out through observation, interviews, and questionnaires analyzed using qualitative and quantitative methods. The average total validation score from experts is 91.4%, which indicates that the Containing Culturally Responsive Teaching loaded microlearning module is very valid. The overall average product trial results reached 83.8% which is included in the valid category. The results of the Paired Sample t-test and Post test were 0.000 <0.05, so there is an effect of the microlearning module containing Containing Culturally Responsive Teaching on improving mathematical problem solving abilities and an increase in mathematical problem solving abilities before and after the use of the microlearning module containing Containing Culturally Responsive Teaching by looking at the average value of the pre-test 6.1694 and post-test 24.2788. So it can be concluded that the Containing Culturally Responsive Teaching loaded microlearning module has been successfully developed and validated so that it is suitable for use to improve mathematical problem solving abilities in the material of trigonometry comparisons in right triangles.
Transforming Drama Education Through Nearpod: Development of Interactive Teaching Materials for University Students
Authors: Hutagalung Trisnawati , Abdurahman Adisaputera Abdurahman , Tansliova Lili , Simanungkalit Kaleb E.
Published: December 2024

This research aims to develop Nearpod media-assisted teaching materials for Drama courses in the Indonesian Language and Literature Education Study Program, Faculty of Language and Arts, Universitas Negeri Medan. This research uses the Research and Development (R&D) method, carried out until the product revision stage after validation. The research population was all fourth-semester students who took the KDBK Drama Teaching course, with 156 students. The sample was selected purposively, namely one class of 37 students who took part in learning using Nearpod-based teaching materials. The results showed that expert validation gave a perfect percentage for content aspects (85.7%), presentation aspects (85.5%), linguistic aspects (85.8%), and design aspects (85.6%). In addition, the results showed that using Nearpod media-assisted teaching materials significantly improved student learning outcomes in drama learning. This finding indicates that Nearpod is an effective digital media in improving engagement and learning outcomes in literature education.
Entangled Fates: The Rally Effect around Europe due to Russia's War of Aggression against Ukraine
Authors: Muhammad Muhammad , Undzėnas Domantas
Published: December 2024

The Russian invasion of Ukraine triggered the deadliest conflict in Europe since World War II. There is an extensive literature on the tendency of national leaders to experience a surge of support in times of international crises, which is dubbed as the rally around the flag effect. However, much less attention is paid to whether a similar rally effect could be observed around a supranational flag. This study employs a quasi-experimental design to test whether the EU experienced a surge in support due to the Russian invasion of Ukraine. The results show that a rally around the EU did occur, and that it is best explained by considerations of advantages accorded by a united Europe rather than through a surge in European identity. The study is a cause of optimism regarding the ability of the EU to gain the support of even those who are not emotionally attached to the European project. However, the findings also place the onus on the EU to prove itself a reliable haven from threats for those who put their trust in it, from within and without.
Biological effect of alkaloid enriched fractions and reticuline from the Stephania dielsianaY. C. Wu on promyelocyte HL-60 cell line
Authors: Dimitrova Petya , Doncheva Tsvetelina , Kostova Nadezhda , Uzunova Iveta , Latinova Nikol , Gerasimova Vanya , Dat Nguyen Tien , Giang Do Hoang , Luyen Nguyen Thi
Published: December 2024

Stephania dielsiana Y. C. Wu is a traditional medicinal plant that, like the other species of the genus Stephania, is used in some Asian countries for the treatment of various conditions and diseases. Phytochemical studies have revealed that the species’ therapeutic activity is mainly due to isoquinoline alkaloids. This study focused on the biological effects of S. dielsiana root tuber extract, alkaloid enriched fractions and the isolated alkaloid reticuline on promyelocytic cell line HL-60. Systematic chromatographic techniques were applied to obtain three alkaloid-enriched fractions and eleven pure alkaloids from the methanolic extract of S. dielsiana root tubers. The quantities of alkaloids in the plant extract and its fractions were determined using HPLC method. The biological effects of the extract, alkaloid fractions and the reticuline were evaluated using colorimetric and flow cytometric assays. The crude extract and alkaloid enriched fractions inhibited cell growth at concentrations higher than 50 µg/ml. One of the alkaloid enriched fractions (St-2) affected the synchronicity of proliferation till day 3. Based on the quantification analysis, reticuline was found as the predominant alkaloid in this fraction with the relative content of 64.9%. Reticuline (9.5 µg/ml) modestly affected mitochondrial functions, decreased the level of phosphorylated p38 kinase in non-stimulated cells, but increased stimulus-induced p38 phosphorylation and elevated the CD11b + cells, indicative for myeloid differentiation. In conclusion, we provide evidence that reticuline derived from S. dielsiana root tubers affected growth, proliferation, apoptosis and differentiation of HL-60 cell line.
Solid particle erosion behaviors of walnut shell-filled (acrylic-styrene-acrylate) [ASA] and (polycarbonate/acrylic-styrene-acrylate) [PC/ASA] thermoplastic blend biocomposites
Authors: Sepetcioglu Harun , Demet Seyit Mehmet , Karagöz İdris , Bagci Mehmet
Published: December 2024

The aim of this study is to investigate the solid particle erosion behavior of walnut shell (WS)-filled acrylic-styrene-acrylate (ASA) and polycarbonate/acrylic-styrene-acrylate (PC/ASA) thermoplastic blend composites under various erosion conditions. Erosion resistance tests were conducted using Al₂O₃ particles (600 µm, Mohs hardness 9) as erodent, at a velocity of 34 m/s, with impingement angles ranging from 30° to 90°. Test samples were subjected to these conditions for 24 seconds, and weight loss was measured to determine erosion rates. Key parameters such as density, hardness, and erosion coefficients were also evaluated. Composites with 10 wt.% WS filler exhibited optimal performance, reducing erosion rates by up to 36.7% compared to unfilled PC/ASA blend. Macro and SEM imaging revealed the damage mechanisms, showing less material loss and better surface durability in WS-filled composites. This study demonstrates that incorporating WS into ASA and PC/ASA matrices not only improves erosion resistance but also aligns with the goal of sustainable material development. The results suggest that these composites could be highly effective in industries where materials are exposed to wear and tear from abrasive forces, such as in construction or automotive applications.
Prevalence and Correlates of Mental Health Disorders Among Somali Adults: The Role of Cardiovascular Comorbidities – A Multilevel Analysis of the 2020 Somalia Demographic Health Survey
Authors: Abdikarim Hodo , Ali Mustafe Abdillahi , Abokor Abdirizak Hassan , Abdirashid Hibo , Farih Omer Adam , Abdillahi Asma Mahamoud , Yousuf Abdirashid M. , Muse Abdisalam Hassan
Published: December 2024

Background
Cardiovascular disease (CVD) and mental health disorders share a bidirectional relationship. This study investigates the prevalence and determinants of mental health disorders in Somalia, focusing on the role of CVD comorbidities.
Methods
Data from the 2020 Somalia Demographic Health Survey (SHDS), the first nationally representative survey of its kind, were analyzed. Multilevel logistic regression models examined the association between self-reported mental health disorders and various sociodemographic factors (age, sex, education, marital status, wealth, region, residence) and CVD comorbidities (hypertension, heart disease, stroke) in a sample of 49,389 individuals.
Results
The prevalence of mental health disorders was 0.5%. Significant independent associations were observed with age, education level, marital status, region of residence, and CVD comorbidities. Specifically, individuals aged 41–60 and 61 + years, those who were never married, divorced, or widowed, and those with hypertension, heart disease, or stroke had significantly higher odds of reporting mental health disorders. Nomadic residence was associated with lower odds.
Conclusion
This study highlights a substantial association between CVD and mental health disorders in Somalia, emphasizing the need for integrated approaches to prevention and management. Further research is warranted to explore the causal pathways and inform targeted interventions to address regional disparities and the significant mental health burden associated with CVD in this population.
Diagnosing psoriatic arthritis: A case report and review highlighting the role of imaging despite normal CRP values
Authors: YILMAZ Ebru
Published: December 2024

Psoriatic arthritis (PsA) is an autoimmune disease characterized by the inflammation of the skin (psoriasis), entheses (enthesitis) and joints (arthritis). Although PsA is predominantly associated with peripheral arthritis and enthesitis, a subset of PsA patients have axial disease. Generally, nonspecific markers of active inflammation, such as elevated C-reactive protein (CRP) levels and erythrocyte sedimentation rate (ESR), are recommended as laboratory markers to promote the diagnosis and measure disease activity in PsA. However, CRP levels do not correlate strongly with disease activity in PsA. This may delay treatment in patients who have active disease despite normal CRP levels. This article presents a case of a patient diagnosed with PsA despite normal CRP levels, emphasizing the importance of imaging in diagnosis and management.
Wavelet Analysis of ENSO Impact on Rainfall Variability in the Andaman Islands: Implications for Climate Resilience and Predictive Modelling
Authors: Kumar Shravan , G Ganesh , Bukke Lavanya
Published: December 2024

In this research project it is explored how El Nino-Southern Oscillation (ENSO) affects rain patterns on Andaman Islands by employing wavelet analysis methods. The primary research goal is to assess temporal correlations between ENSO phases and local rainfall using both Continuous Wavelet Transform (CWT) and Discrete Wavelet Transform (DWT). Methodology utilized included the analysis of Oceanic Nino Index (ONI) data coupled with local rainfall statistics; Pearson and Spearman correlation coefficients were then employed to establish relationships. Results revealed a moderate negative relationship (Pearson coefficient =-0.31) between ONI values and annual rainfall; higher ONI levels associated with El Nino events tend to correlate to reduced precipitation across the region. Additionally, using Long Short-Term Memory (LSTM) neural networks in predictive modelling significantly improved forecast accuracy as evidenced by their R-squared value of 0.95 and their relative risk-maximization error estimate of 0.15. This implies a complex interrelation between global climate events and regional hydrological responses; further challenging prior assumptions of ENSO's effects. These insights contribute to improving regional climate dynamics knowledge, underscoring the role of ENSO in rainfall variability prediction, supporting improved climate resilience efforts as well as predictive modelling efforts in Andaman Islands.
MRI regional strain analysis in patients with hypertrophic cardiomyopathy in Mediterranean cohort
Authors: Maher Esraa , Khalil Magdi , Taher Mona , Khalil Sameh
Published: December 2024

Purpose: To evaluate the regional left ventricular myocardial strain in patient with hypertrophic cardiomyopathy (HCM) especially young apparently compensated patients by magnetic resonance imaging.
Materials and Methods: 25 HCM patients representing all age groups and 25 healthy volunteers underwent 1.5 Tesla MRI examination for cardiac volumes, and mass, followed by regional strain analysis in radial, circumferential, and longitudinal directions as regard the displacement, strain, peak diastolic and systolic strain rate, peak diastolic and systolic velocity, time to peak displacement and time to peak strain.
Results: In the HCM group, hypertrophic segments showing delayed gadolinium enhancement (DGE) were significantly different from non-hypertrophic apparently normal showing no enhancement concerning most of the regional radial strain parameters.
In longitudinal and circumferential directions, hypertrophic segments showing DGE were significantly different from apparently normal segments with no enhancement as regard the strain, peak diastolic and systolic strain rate.
Compared to normal volunteers, the hypertrophic segments with DGE were significantly different concerning most of the radial and longitudinal strain parameters, while apparently normal segments with no enhancement don’t present a similar significant difference.
In circumferential analysis, hypertrophic enhancing segments were significantly different as regard the strain, peak diastolic strain rate, peak systolic velocity, and time to peak displacement, while the apparently normal non-enhancing segments present difference concerning the strain, peak systolic velocity, and time to peak displacement.
Conclusion
The hypertrophied segments showing DGE are more affected than the segments of apparently normal thickness non enhancing in HCM patients, especially in the radial direction, the apparently normal segments are less affected with no tendency of functional compensation.
These findings are crucial in young age apparently compensated patients’ diagnosis follow up.
Synthetic dataset generation method for object detection
Authors: Zhou Ningning , LI Tong
Published: December 2024

To address the high construction cost of datasets for object detection, particularly in industrial application scenarios where sufficient sample images cannot be obtained from the Internet due to the specialized nature and diversity of objects and their working environments, this paper proposes a method to automatically generate synthetic datasets and train object detection models on them. First, 3D models of the target devices are created and rendered to ensure that the synthetic images exhibit realistic texture and detail. Next, a simulation environment is constructed and the 3D models are integrated into this environment using global domain randomization techniques. Finally, computer graphics methods are applied to automatically annotate target objects in the synthetic images. This approach effectively reduces the cost of data acquisition while maintaining the detection accuracy of the models. Several mainstream object detection models, including Faster R-CNN, SSD, and YOLO, are trained on synthetic datasets of anti-vibration dampers. Experimental results on real-world images demonstrate that models trained on synthetic data achieve relatively high accuracy. Furthermore, fine-tuning these models with a very small number of real images significantly enhances their performance. In addition, the models exhibit robustness against interference and occlusion.