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Slope stability is a key concern in open-pit mining due to its impact on safety and operational efficiency. Mine X, located in Kalimantan Island, faces landslide risks on its high wall slopes. This study aims to model slope stability and determine safe and economical slope geometry. The analysis was performed using the Limit Equilibrium Method (Bishop Simplified), both analytically and numerically, through Slide 6.0 software by Rockscience Inc. Input data were obtained from five geotechnical investigation points provided by PT.X, including cohesion, internal friction angle, and saturated unit weight. Two lithologies were analyzed—claystone and sandstone—with slope height variations (5 m, 10 m, 15 m) and angles (26°, 45°, 51°, 59°), under dry and saturated conditions. Simulation results show that the factor of safety (SF) decreases with increasing slope height and angle, especially under saturated conditions. Sandstone demonstrates better stability than claystone. The recommended optimal slope geometry is 10 meters in height with a 59° angle, yielding a SF ≥ 1.25 and aligning with the PC-400 excavator's cutting capability. This study provides a technical reference for designing safe slopes that support mining productivity.

Management of household waste in Final Disposal Sites (TPA) faces a serious problem, where most of the waste accumulates and is difficult to decompose due to its complex nature. This condition substantially inhibits natural decomposition processes and limits the effectiveness of recycling efforts. Pre-processing operations, such as sorting and crushing, which are still dominated by manual methods, are proven to be inefficient, high-risk, and require large allocations of land resources and manpower. Therefore, automated technological innovation is needed to facilitate the efficient separation of organic components from inorganic materials (packaging). This research was conducted to determine the design and structural strength analysis of a hammer mill type depackaging machine, carried out using Solidworks software. Structural analysis simulation utilizes Finite Element Analysis (FEA) to determine the structural strength of the machine. The specifications of the hammer mill type depackaging machine include a capacity of 3000 kg/hour, a hammer mill input power of 12 KW, and a rotational speed of 2500 rpm with a torque of 34.54 Nm. Meanwhile, the screw conveyor input power is 0.75 KW and the rotational speed is 20 rpm. The FEA simulation analysis results for the hammer mill type depackaging machine showed that the maximum Von Mises stress value recorded is 3,022×10^7   N⁄m^2 , the maximum displacement value measured is very minimal, namely 2,793×10^(-1)  mm, and the Factor of Safety (FOS) obtained is 8.3. This FOS value significantly exceeds the required minimum safety limit (>3), confirming that the machine design has optimal reliability, fatigue resistance, and structural integrity for operation under intensive working conditions at the TPA. The conclusion of this study indicates that the engineering design of this hammer mill type depackaging machine is safe and meets structural technical requirements to proceed to the implementation phase, potentially becoming a sustainable technological solution in improving the efficiency of waste pre-processing.

This systematic literature review examines the relationship between learning styles and learning media in optimizing 21st-century skills among Diploma Three (D3) vocational students. Through systematic analysis of 74 relevant national and international journal articles published between 2018 and 2024 from Scopus database, this study reveals that the alignment between learning styles (visual, auditory, kinesthetic) and learning media significantly influences the development of critical thinking, creativity, communication, and collaboration skills. Technology-based media such as interactive videos, learning management systems (LMS), and virtual simulations effectively accommodate diverse learning preferences while enhancing students' motivation and engagement in the learning process. The findings indicate that e-modules integrating problem-based learning (PBL) demonstrate effectiveness rates of 65-85% in improving critical thinking skills. This research concludes that the integration of learning styles with digital-based learning media serves as an effective strategy to produce competent and adaptive vocational graduates who are well-prepared to face the challenges of Industry 4.0 and Society 5.0.

This study aims to synthesize the relationship between learning styles and instructional media in optimizing 21st-century skills among Diploma Three (D3) vocational students. The research employed a simple literature review method by analyzing 20 national and international journal articles published between 2018 and 2024. The results reveal that the alignment between learning styles (visual, auditory, kinesthetic) and the types of instructional media significantly influences the development of critical thinking, creativity, communication, and collaboration skills. Technology-based media, such as interactive videos, learning management systems (LMS), and virtual simulations, effectively accommodate diverse learning preferences while enhancing students’ motivation and engagement. Furthermore, integrating such media not only supports individual learning needs but also fosters a more dynamic and inclusive educational environment. The study concludes that integrating learning styles with digital-based media serves as an effective strategy to produce competent and adaptive vocational graduates who are well-prepared to face the challenges of Industry 4.0 and Society 5.0.

This study aims to systematically review various studies that discuss the role of entrepreneurship education in developing students’ entrepreneurial spirit at the Senior High School (SMA) and Vocational High School (SMK) levels. The method used is the Systematic Literature Review (SLR), guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The reviewed articles cover publications from 2019 to 2025. Based on the selection of 20 scientific articles, the findings indicate that entrepreneurship education plays an important role in enhancing students’ creativity, innovation, self-confidence, and independence. The most effective learning strategies include project-based learning, business simulations, and collaboration with the industrial sector. In addition, teachers play a crucial role as facilitators in fostering an entrepreneurial mindset. The challenges identified include limited resources, insufficient teacher training, and suboptimal school policy support. Overall, entrepreneurship education has been proven to make a significant contribution to shaping entrepreneurial character and preparing students to face the challenges of the workforce.

This community service program, entitled English for Global Communication: Strengthening Intercultural Competence among Polytechnic Students, was led by Doris Yolanda Saragih, S.Pd., M.Pd., in collaboration with Clementine and Josh, guest lecturers from the United Kingdom. The activity took place at Politeknik Bisnis Indonesia on September 1, 2025, involving 60 students across two interactive learning sessions. The program aimed to enhance students’ ability to communicate effectively in global settings by integrating language proficiency, cultural awareness, and practical communication strategies. The learning process applied a communicative and experiential approach, featuring discussions, simulations, and task-based learning to develop students’ speaking fluency, cross-cultural sensitivity, and confidence. The participation of native English speakers provided authentic exposure to international discourse and cultural perspectives, which enriched the overall learning experience. Evaluation results indicated a significant improvement in students’ oral communication skills, vocabulary use, and intercultural understanding. Furthermore, participants demonstrated higher motivation and readiness to apply English in academic and professional contexts. Overall, this community engagement initiative effectively contributed to enhancing global communication competence and supported the institution’s mission to cultivate globally competitive and culturally aware graduates.

This study addresses citizenship justice in Indonesia amid the challenging era of globalization, focusing on the conflict between Pancasila as the state foundation and the dominant Islamic values in society. The study aims to analyze the synergy of Islamic principles—justice (ʿadl), equality (musawah), and public welfare (maslahah)—with the second and fifth principles of Pancasila to build sustainable and inclusive citizenship justice. The method used is qualitative, including content analysis and an in-depth literature review of the Qur'an, Hadith, and Pancasila documents, supplemented by semi-structured interviews with 20 experts in religion and constitutional law. The findings reveal a new conceptual framework called "Islamic Pancasila," which integrates the principle of tauhid with the value of gotong royong (mutual cooperation), reducing social polarization by up to 30% based on case simulations in multicultural areas like West Java. Islamic values provide a spiritual dimension that complements Pancasila, while Pancasila offers an inclusive nationalist framework. The study concludes that the synergy between Islamic values and Pancasila is not only a theoretical solution but also a practical strategy for realizing citizenship justice. Recommendations include integrating these values into the civic education curriculum and government policies to facilitate interfaith dialogue, strengthening national identity amid contemporary social and cultural dynamics.

The sport of archery requires an accurate and fair classification system of athletes according to international standards. This community service research aims to introduce and implement the ArchiClass application as a technology-based innovation for athlete classification, as well as improve the understanding of the archery community at Al Ayyubi Archery Club Boyolali regarding sports with disabilities. This activity involved 50 athletes and 6 coaches. The methods used include socialization, application demonstration, simulation, and evaluation of participant responses. The results showed that participants gained a better understanding of the importance of fair and technology-based classification. Participants gain practical experience using ArchiClass, while coaches and parents gain new insights into archery. In addition, the implementation of this application encourages the creation of a more transparent and consistent classification process. The final evaluation showed that the majority of participants felt helped by the existence of the application and expressed readiness to implement it in training activities and competitions. This program successfully introduced ArchiClass as an effective tool and increased community awareness and understanding of disability sports.

This community service activity aims to introduce the use of the PhET virtual laboratory and to identify students’ responses to the PhET-based virtual laboratory training in empowering students at SMA Negeri 1 Unaaha. The program also seeks to address the issue of limited science practicum facilities in the partner school. The study employed a descriptive quantitative design involving a single group of 23 participants from grades X to XII in the science stream. Participants took part in several sessions, including orientation, demonstration, and exploration of the Build an Atom and Circuit Construction Kit: DC simulations. Research data were collected using a Likert-scale questionnaire consisting of 30 items covering six main indicators: conceptual understanding, motivation, activeness, interest, ability to operate PhET, and learning satisfaction. All questionnaire results were converted into percentages for each indicator. The analysis showed an average response rate of 86.67%, with details as follows: interest 92%, activeness 90%, motivation 88%, satisfaction 89%, operational ability 83%, and conceptual understanding 78%. These findings indicate a very positive acceptance and significant reinforcement in the affective, participatory, and technical skill aspects of the students.

This paper presents a narrative review focusing on the significance of in silico methodologies in identifying and evaluating natural bioactive compounds as promising antidiabetic agents. By examining scientific publications from 2020 to 2025, the review highlights substantial evidence that various plant-derived metabolites such as flavonoids, phenolic acids, terpenoids, and glycosides from Orthosiphon stamineus, Moringa oleifera, Syzygium polyanthum, Tinospora crispa, and Albizia saman demonstrate notable affinity toward several crucial enzymes implicated in type 2 diabetes, including DPP-4, SGLT-2, α-glucosidase, and PTP1B. Findings from molecular docking analyses and ADMET simulations indicate that many of these compounds exhibit favorable pharmacokinetic behavior, strong receptor interactions, and minimal toxicity, suggesting their potential as multitarget natural therapeutics with synergistic modes of action. Utilizing in silico screening as an initial step effectively predicts biological activity and pharmacological profiles prior to experimental validation through in vitro and in vivo testing, thus reducing both time and research expenditure. The synergy between computational modeling, medicinal chemistry, and phytochemical exploration establishes a scientific framework that supports the advancement of rational, safe, and sustainable herbal-based antidiabetic drug development derived from Indonesia’s vast biodiversity and encourages self-reliance within the national pharmaceutical sector.

This community service program aims to enhance the creativity and economic independence of mosque youth through the implementation of the Business Challenge Program in Lingkungan VI, Tanah Enam Ratus Village, Medan Marelan District. The program was initiated in response to the limited entrepreneurial knowledge and skills among mosque youth, which hindered their ability to develop productive business initiatives. The implementation involved several stages: field observation, interviews, workshops, mentoring sessions, halal product-making practices, and marketing simulations. The results indicate a significant improvement in participants’ ability to design business models using the Business Model Canvas, produce halal products (such as fried tofu “tahu walik” and “es kuwut”), and market them directly to the community. Moreover, the program instilled Islamic business values, including honesty (ṣidq), trustworthiness (amānah), and diligence (ijtihād), as the foundation for ethical entrepreneurship. Overall, the Business Challenge Program effectively fostered creativity and self-reliance among mosque youth while strengthening the role of mosques as centers for community empowerment.

This qualitative case study examines how the Communicative Language Teaching (CLT) approach can be adapted to general English classes in a higher education institution in Timor-Leste to answer the long-standing question of how students can acquire speaking proficiency in a multilingual learning environment. The paper brings into focus the incorporation of CLT into classroom activities with special emphasis on the application of role play, pair work, seminars, simulations, and task-based learning as means of promoting interactive and communicative competence. A descriptive qualitative case study design was used to develop in-depth knowledge of contextual teaching and learning experiences, the perspectives of the participants, and naturally occurring practices in the institutional setting. Semi-structured interviews, classroom observations, and document analysis were the data-gathering methods. Purposive sampling was used to select the two lecturers and seven students directly involved in teaching general English. Thematic analysis was used to analyse the data, which made it possible to identify repeated themes and patterns that revealed both opportunities and difficulties in implementing CLT in context. The results of the study indicate that, despite the adaptation of the CTL approach in teaching practices, its implementation is often sporadic due to concerns about English proficiency, teacher training, and flexibility in using local and official languages during instruction. The research demonstrates the necessity of adapting CLT methods to the local education environment and arranging long-term professional development for lecturers. This study helps us understand how context-sensitive CLT approaches can lead to improved results in teaching and learning English in Timor-Leste. The interactive approach and the systematic teacher model could significantly improve students' communicative competence.

This study aims to describe the implementation of Islamic financial literacy training and its impact on enhancing students’ understanding of Islamic economics at SMK Negeri 1 Dolok Masihul. The research employed a qualitative descriptive approach involving 25 students as participants. Data were collected through observation, interviews, questionnaires, and documentation. The results show that the training, conducted through interactive methods such as discussions, simulations, and case studies, significantly improved students’ knowledge of Islamic financial principles, including profit-sharing (mudharabah and musyarakah), prohibition of riba, and ethical financial management. The average understanding level increased from 63% before the training to 87% afterward. Supporting factors included teacher involvement, engaging materials, and the practical relevance of the content, while limiting factors were time constraints and lack of reference materials. Overall, the implementation of Islamic financial literacy training proved effective in strengthening students’ conceptual and practical understanding of Islamic economics and can serve as a model for integrating Sharia-based financial education in vocational schools.

This community service (PKM) aims to improve the English language competency of students of SMK Negeri 3 Palangka Raya specifically English For Specific Purpose (ESP). The increasingly global needs of the fashion and textile industry, both for export and import and interaction with foreign clients, require graduates to have English communication skills that are not only general, but also specific according to the terminology of design, production, and marketing of fashion products. The methods used are interactive training, and Role-Play simulations, and direct practical assistance with a focus on design presentations, negotiations with clients or suppliers, and technical terminology for sewing patterns in English. The results of the PKM show an average increase in specific vocabulary mastery of 25% as well as a significant increase in student self-confidence in using English for work scenarios, as well as a better understanding of professional terms in the field of Fashion Design. This activity is recommended to be continued as a regular school program to bridge the gap between the general English curriculum and the demands of actual work competencies in the fashion industry

This study investigates students’ perceptions of Smalltalk2Me, an artificial intelligence (AI)-powered conversational assistant designed to improve speaking skills in classroom learning. The main objective of this research is to explore how students perceive the tool’s effectiveness, usefulness, interactivity, and overall learning experience when using it for speaking practice. The research employed a qualitative descriptive method, with data collected through semi-structured interviews involving students who had used Smalltalk2Me as part of their English-speaking activities. The interview data were analyzed thematically to identify emerging patterns related to engagement, motivation, and skill development. The findings reveal that students view Smalltalk2Me as an effective and accessible tool that enhances speaking fluency and confidence since it allows practice anytime and anywhere. Students also appreciate its realistic conversation simulations and personalized feedback, which help them recognize pronunciation errors, improve vocabulary use, and refine sentence structure. Additionally, the AI assistant creates a supportive and low-anxiety learning environment, making learners more comfortable expressing themselves in English. Overall, the study concludes that Smalltalk2Me serves as a valuable supplementary tool for improving students’ speaking competence and fostering autonomous learning in technology-enhanced language classrooms.

The 2025 Independent Community Service Program (KKN) of the University of Muhammadiyah North Sumatra was held at SD Negeri 102028 Sei Parit, Sei Rampah District, Serdang Bedagai Regency. Sharia financial education from an early age is an important step in shaping a generation that is financially literate and has Islamic morals. This study aims to describe the process and results of Islamic financial education activities through the “Saving from an Early Age” program for students at State Elementary School 102028 Sei Parit, Sei Rampah District, Serdang Berdagai Regency. The implementation method used a participatory approach with direct observation, counseling, mini banking simulations, and educational games. The results of the activity show that students are able to understand the basic concepts of saving, recognize the prohibition of usury, and show a high interest in saving consistently. This activity also succeeded in fostering basic Islamic financial literacy, especially in the context of wise pocket money management. This study recommends that similar programs be carried out continuously through collaboration between schools and Islamic financial institutions.

This Community Service Program (PkM) arises from the significant challenges faced by Vocational High School (SMK) students in adapting to the rapid progression of the digital era and the widespread use of artificial intelligence (AI). In an environment flooded with online information, many students tend to accept and share digital content without adequately verifying its validity, leaving them susceptible to misinformation, deceptive media, and inaccurate data. Ethical risks linked to AI misuse have also surfaced, including plagiarism through automated text-generation tools, excessive reliance on chatbots without ethical consideration, and potential privacy breaches due to limited awareness of technological vulnerabilities. To respond to these issues, the PkM program adopts an educational strategy focused on critical digital literacy training and mentoring tailored for SMK students. The initiative highlights the importance of critical thinking in evaluating and validating digital information, while simultaneously promoting ethical responsibility in using AI. Through workshops, case-based simulations, group discussions, and practical content analysis, students learn to recognize digital manipulation and reflect on the social implications of AI. Expected outcomes include increased ethical digital awareness, the development of a sustainable training module, academic publications, and long-term collaboration between schools and universities, ultimately preparing students to be competent, ethical, and responsible digital citizens.

The young generation has a strategic role in social development, especially in strengthening leadership values and national character. However, in this modern era many young people have experienced a decline in the spirit of mutual cooperation, social care, and responsibility for the community environment. Based on these conditions, this community service activity was carried out with the aim of fostering the leadership character of the younger generation through the Karang Taruna organisation in Kadipaten Village, Andong District, Boyolali Regency. The activity methods used include interactive lectures, group discussions, leadership simulations, and value reflections with a participatory approach. This activity was attended by 25 Karang Taruna members and was held for two days. Evaluation was conducted through observation, questionnaires, and interviews to measure the improvement of participants' understanding, attitudes, and leadership behaviour. The results of the activities showed a significant increase in the participants' understanding of leadership concepts, communication skills, teamwork, and sense of social responsibility. Participants also began to show initiative in designing and implementing social programmes in the village. In addition, this activity strengthens the role of Karang Taruna as a forum for character and leadership development at the village level. In conclusion, leadership character development through educative and participatory approaches has proven to be effective in developing youth leadership with integrity, visionary, and orientated towards social values. This activity is expected to be a model of youth capacity building that can be replicated in other villages.

Oxidative stress-induced apoptosis and chromatin instability are usually associated with male infertility and undermine the sperm DNA integrity. Recently, Vitamin K₂ (menaquinone) became a bioactive compound whose regulation action can be found in both apoptosis and transcriptional signaling. This study examines how Vitamin K₂ can be protective in the regulation of apoptotic pathways and stability in sperm chromatin by an integrative experimental and in silico analysis. Vitamin K₂ levels, DNA fragmentation level of infertile men's serum and semen samples (Aniline Blue), and the expression levels of apoptosis-associated genes (BAX, BCL-2, and CASP-3) in the samples were examined by qRT-PCR. The characterization of Vitamin K₂ binding affinity to apoptotic proteins was done using dynamics simulations. Findings showed that high levels of Vitamin K₂ had a significant positive correlation with reduced levels of DNA fragmentation and good control of apoptotic genes with reduced BAX and CASP-3 and increased expression of BCL-2. In general, the results indicate Vitamin K₂ as a potential regulator of sperm death and chromatin integrity that provides new therapeutic understanding on how male infertile patients can be treated.

The rapid development of network infrastructure demands high Quality of Service (QoS), especially in Metro Ethernet networks widely utilized by telecommunication service providers. A primary challenge is efficient bandwidth management to ensure network stability and performance. This research aims to optimize bandwidth management by implementing the Y.1731 method based on Ethernet Operations, Administration, and Maintenance (OAM) on Raisecom devices. The methodology employed is a quantitative experimental approach based on technical simulation within an Professional Network Emulator Tool Lab (PNET Lab), where real-time network performance measurements are conducted using the ITU-T Y.1731 protocol for key parameters such as delay, jitter, and packet loss on Raisecom devices (represented by Cisco routers). The expected outcomes include increased efficiency in bandwidth utilization through more adaptive allocation, comprehensive and accurate real-time network performance monitoring capabilities, validation of OAM functions on Raisecom devices, improved Quality of Service (QoS) and better Service Level Agreement (SLA) attainment, and the provision of technical recommendations for network management. The implementation of Y.1731 is anticipated to quickly detect and respond to service degradation, thereby providing a strong basis for decision-making in network management and contributing to the enhancement of service quality in Metro Ethernet networks through optimization based on proactive monitoring.