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Ketidaksesuaian kualitas pada proses assembly sepatu kulit kerap memicu siklus rework berulang yang menguras sumber daya waktu maupun biaya produksi secara signifikan. Penelitian ini mengkaji mekanisme pengendalian cacat yang diterapkan pada Product D-01 di Lini C PT XYZ, dengan menggunakan DMAIC sebagai kerangka perbaikan utama serta Pareto, P-Chart, Fishbone Diagram, 5 Whys, Failure Mode and Effects Analysis (FMEA), dan Cost of Quality (COQ) sebagai alat pendukung. Data primer bersumber dari catatan produksi internal perusahaan, pengamatan lapangan, dan wawancara terstruktur bersama pengawas produksi dan staf quality control. Pengukuran baseline menunjukkan bahwa Lini C menyumbang volume cacat paling tinggi di antara seluruh lini yang ada, dengan Product D-01 mencatat 10.487 pair cacat dari total output 80.387 pair, sehingga menghasilkan defect rate sebesar 13,05%. Distribusi Pareto mengidentifikasi wrinkle, incorrect colour, dan not straight sebagai tiga kategori cacat paling kritis. Penilaian FMEA menetapkan Risk Priority Number tertinggi sebesar 245 pada perilaku operator yang terburu-buru selama proses lasting dan brushing. Tindakan korektif mencakup pemasangan SOP visual, implementasi checklist QC pra-shift, verifikasi kondisi mesin secara rutin, dan penyediaan sampel referensi warna serta bentuk yang terstandar. Pemantauan selama dua periode berikutnya mengkonfirmasi penurunan defect rate secara bertahap menjadi 12,80% dan kemudian 11,65%, disertai penurunan estimasi biaya kegagalan internal dari Rp 2,36 juta menjadi Rp 1,86 juta per periode.

This study designs and implements an up-down counter system based on an AT89C2051 microcontroller programmed in assembly using the MC-51 application. The system modifies an existing digital clock board by mapping the display selector pins, seven-segment segment pins, pushbuttons, and buzzer to the microcontroller ports. The research method consists of literature review, hardware identification, algorithm design, assembly programming, program downloading, and functional testing using a 5 V DC supply. The implementation uses a four-digit common-cathode seven-segment display and a multiplexing routine to show the counter value in real time. The functional test shows that the system can display the initial value, increase the value through the up button, and decrease the value through the down button. The display is readable during operation, and the program can run on the target circuit after being downloaded to the AT89C2051. This study confirms that assembly programming on MC-51 can be applied to implement a simple counter system on a reused digital clock circuit. The main limitations are the absence of explicit button debouncing, overflow and underflow protection, quantitative response-time measurement, and non-volatile data retention.

The development of fine motor skills in elementary school-aged children is crucial for academic achievement and daily activities. However, some children still experience delays in fine motor skills due to lack of stimulation, a lack of varied teaching methods, and the impact of technology use and learning after the pandemic. This study aims to improve fine motor skills in elementary school children through Educational Activities Using LEGO Bricks. The method used is a play-based learning approach integrated into thematic learning. The activities were conducted in several structured sessions, including an introduction, core activities, and reflection and evaluation. Participants were elementary school students who actively participated in LEGO assembly activities both individually and in groups. The results showed improvements in fine motor skills, evident in improvements in hand-eye coordination, accuracy, concentration, and manipulative abilities. Students also demonstrated great enthusiasm and progress in creativity when creating various types of works. The discussion indicates that playing with LEGO is beneficial for training small muscles in the hands through pinching, pressing, and arranging activities, as well as supporting cognitive development and a passion for learning. In other words, the LEGO Brick Educational Play Movement has proven to be an innovative and fun learning medium, as well as effective in developing the fine motor skills of elementary school students.

This research aims to design and develop a simple Dino-themed game based on a microcontroller, with the display using an I2C LCD. The game is inspired by the offline Dino game on Google Chrome, adapted to run on an Arduino Uno microcontroller. The research method used is Research and Development (R&D), consisting of stages such as needs analysis, system design, simulation using Wokwi, hardware assembly, programming, and testing. The system uses push buttons as input and a 16x2 I2C LCD as the output display. The testing results show that the system can respond quickly to user input and display character movement and score updates dynamically on the LCD screen. Although the graphical capability of the LCD is limited, the game runs well and successfully demonstrates the basic concepts of microcontroller programming as well as interactive input-output processing. Further development is recommended to enhance the graphical interface and add features such as sound effects and progressive difficulty levels.

The limited use of interactive learning media has made it difficult for students to visualize the functions and assembly flow of computer components. This study aims to design and develop an Android-based educational game called “Assemble & Learn” as an interactive medium for computer assembly lessons, specifically for vocational high school students at SMK Negeri 1 Tanjung Jabung Barat. The development process follows the Multimedia Development Life Cycle (MDLC), which includes the stages of concept, design, material collection, assembly, testing, and distribution. The learning content covers several core competencies: KD 3.2/4.2 on computer assembly, KD 3.3/4.3 on assembly testing, KD 3.4/4.4 on BIOS configuration, and KD 3.5/4.5 on operating system installation, with a focus on KD 3.2 and KD 3.5. Research instruments consist of validation questionnaires for subject-matter experts, media experts, and student trials using the System Usability Scale (SUS). Validation results show that the educational game received an average score of 94% from media experts and 100% from subject-matter experts, both categorized as “Highly Feasible.” Meanwhile, student trials indicated strong acceptance, with an average SUS score of 85% (excellent usability). In conclusion, the “Assemble & Learn” educational game offers an innovative solution to boost learning motivation, simplify material visualization, and provide flexible practice opportunities, thereby supporting the achievement of computer assembly competencies in an optimal and effective way.

This study aims to analyze the effectiveness of the Papua Special Autonomy policy in improving the welfare of indigenous communities by reviewing the achievement of policy objectives, integration and coordination between institutions, and policy adaptation to the socio-cultural conditions of the local community. The approach used is qualitative with the Qualitative Secondary Analysis (QSA) method, utilizing various secondary data sources such as policy documents, government reports, and relevant research and academic journals. The results of the study indicate that the Papua Special Autonomy policy was designed as an affirmative policy aimed at accelerating regional development, improving community welfare, and recognizing the rights of indigenous communities. This policy has produced several positive results, especially in increasing regional fiscal allocations, developing infrastructure, and expanding community access to education and health services. In addition, the establishment of special institutions such as the Papuan People's Assembly provides space for the representation of indigenous people's culture in the regional government system. However, the study also shows that the Special Autonomy policy faces several challenges, including suboptimal inter-institutional coordination, limited institutional capacity of local governments in managing Special Autonomy funds, and the incomplete integration of indigenous socio-cultural values ​​in the planning and implementation of development programs. Therefore, strengthening policy governance, increasing accountability in fund management, and expanding indigenous community participation are crucial factors in enhancing the effectiveness of Papua's Special Autonomy policy. This research provides theoretical contributions to public policy development, particularly in the context of implementing asymmetric decentralization and culture-based development policies.

The study analyzes the implementation of the 5S method (Seiri, Seiton, Seiso, Seiketsu, Shitsuke) in improving shoe production quality at the Assembly section of PT X through observation, interviews, and documentation. Involving supervisors, production leaders, and operators, the study aimed to assess the impact of 5S on production processes. The results showed that the implementation of 5S successfully created a more organized, cleaner, and standardized work environment. These improvements led to a reduction in potential work errors, increased process efficiency, and the establishment of an employee disciplinary culture. Employees became more aware of maintaining cleanliness and orderliness, which contributed to a smoother workflow and better quality control. The findings align with theories of quality management, organizational behavior, and operations management, demonstrating the benefits of 5S in enhancing operational effectiveness. This study confirms that integrating the 5S method into industrial practices, particularly during internships, is an effective strategy to encourage continuous improvement and enhance production quality in the industry.

This study aims to strengthen students’ networking competencies through the implementation of straight and cross LAN cable assembly training at SMKN 53 Jakarta. The background of this research is based on the need to enhance students’ practical skills in basic computer networking, particularly in understanding cable configurations and applying crimping techniques according to industry standards. Many students experience difficulties in differentiating wiring standards and applying correct crimping procedures, which impacts their readiness for industry practice. This research employed a practical training approach combined with demonstration and hands-on methods. The participants were students of the Computer and Network Engineering program. Data were collected through observation, performance assessment, and competency tests before and after the implementation. The findings indicate a significant improvement in students’ understanding of cable color standards (T568A and T568B), accuracy in assembling straight and cross cables, and testing results using LAN testers. Students demonstrated higher levels of technical accuracy, problem-solving skills, and work discipline after the intervention. The implementation of structured practical activities proved effective as a medium for strengthening networking competencies. The study implies that continuous practice-based learning aligned with industry standards is essential in vocational education to improve students’ technical readiness and employability in the networking field.

The training on computer network cabling serves not only to enhance students’ technical abilities but also to cultivate social values, collaborative behavior, and digital awareness within the school environment. The outreach activity conducted by students of Universitas Victory Sorong at SMA 2 Kabupaten Sorong aimed to strengthen students’ digital competence through the introduction of network devices and hands-on practice in creating LAN cables. The results indicate that this training effectively increased students’ understanding of computer network components, improved their practical skills in LAN cable assembly, and fostered cooperation and responsibility during group activities. From the perspective of Sociology of Education, the program contributed to the development of social capital by encouraging peer interaction, collaborative learning, and a deeper awareness of the role of technology in social life. This activity also addressed existing problems such as limited knowledge of network systems, lack of practical experience, and insufficient technology education in schools. Overall, the training led to improved technical comprehension, active participation, and enhanced social character formation. Therefore, computer network cabling training plays a significant role in promoting both digital literacy and social development among students in accordance with the principles of educational sociology.

The development of the digital era demands that youth possess practical and applicable information technology (IT) skills to enhance competitiveness in the workforce and entrepreneurship. However, the gap between theoretical knowledge and basic technical skills—such as computer assembly, installation, and troubleshooting—remains a real challenge among youth, particularly in community settings such as the Patitech Academy in Pati Regency. The training program was implemented using experiential learning methods and a participatory approach over three days. A total of 25 participants engaged in a series of activities, including socialization, technical training, intensive mentoring, and evaluation. Measurement instruments included written pre- and post-tests, practical performance observation, and satisfaction questionnaires. Data analysis showed a significant improvement in participant competencies. The average post-test score increased by 40.2% compared to the pre-test, with 85% of participants demonstrating mastery in assembling computers, installing operating systems, and performing basic troubleshooting independently. The troubleshooting aspect recorded the highest increase (45%). The success of the program was supported by direct learning methods, an ideal participant-instructor ratio, and a curriculum relevant to industry needs. Hands-on training proved effective in significantly improving youth technical IT competencies. The program not only built hard skills but also increased participants' self-confidence and independence. For sustainability, it is recommended to develop advanced modules, strengthen industry networking, and establish a digital alumni forum. The findings of this study can serve as a model for developing youth empowerment programs based on digital skills in other communities.

The rapid development of the digital era requires human resources to not only master software, but also understand hardware infrastructure. This community service program aims to improve the technical competence and digital literacy of the people of Pati Regency through a PC assembly and optimization workshop. The method used is the Participatory Action Learning Sistem (PALS), in collaboration with "Pati Tech" as an industry partner, and utilizing the campus computer laboratory as a training center. Activities consisted of orientation, planning, and hands-on practice in PC assembly. The results of the community service program showed a significant increase in the technical skills of participants, as reflected in the average pre-test score of 52.5 which increased to 86.4 in the post-test. Participants are now able to assemble and optimize sistem independently. The implication of this activity is the formation of independent digital talents who can manage digital infrastructure, which is expected to support the development of the local creative economy in Pati Regency. This program contributes to improving technological skills relevant to the needs of the digital market.

The rapid advancement of digital technology has significantly influenced students’ learning behavior while gradually reducing their interest in local cultural education, including the study of the Javanese script. This phenomenon is evident at SDIP Haji Muhammad Subandi, where most students still struggle to recognize, read, and understand Javanese characters due to the limited use of engaging and interactive learning media. To address this issue, a 2D educational game was developed as an innovative, contextual, and enjoyable learning medium that integrates cultural elements into an interactive digital learning experience. The design and development process employed the Multimedia Development Life Cycle (MDLC) method, which consists of six stages: concept, design, material collecting, assembly, testing, and distribution. The game was built using Unity software to produce dynamic visuals, responsive controls, and supporting audio elements that enhance the immersive quality of gameplay. The educational game enables students to learn Javanese script through interactive play activities, including letter recognition, pronunciation practice, and quiz-based challenges. Each component was designed to strengthen cognitive understanding while increasing students’ intrinsic motivation to learn. Expert validation results indicated that the game met the “highly feasible” criteria as a learning medium, while user testing showed notable improvements in motivation, engagement, and learning enjoyment. Overall, this educational game not only enhances learning effectiveness but also contributes to the preservation and revitalization of the Javanese script as part of Indonesia’s cultural heritage in the digital era. Therefore, this game-based learning approach serves as an adaptive and culturally grounded educational innovation for primary-level students

The coffee industry in Indonesia is growing rapidly and encouraging coffee shops, including MSMEs, to strengthen their branding strategies through digital media. This study aims to design and evaluate Instagram social media content to increase brand awareness of Kamala Kopi, a local coffee shop in Gunungpati, Semarang. The method used is the Multimedia Development Life Cycle (MDLC) with stages of concept, design, material collection, assembly, testing, and distribution. The content produced consists of music videos, promotional posters, and menu visuals, which were then tested through internal and external validation, as well as a questionnaire administered to 68 respondents. The research results showed a positive and significant influence of Instagram content on brand awareness of 1.007 with a coefficient of determination of 90.4%. These findings confirm that content on Instagram social media plays an important role in strengthening the visibility of SME brands and can be an effective strategy to increase brand awareness.

State speeches in international forums are a strategic arena for the practice of diplomacy and leadership image management. This study analyzes President Prabowo Subianto's rhetorical style in his speech at the 80th UN General Assembly on September 23, 2025. Using Aristotelian theory, namely ethos, pathos, and logos, to understand how rhetoric functions in strengthening political legitimacy, humanitarian solidarity, and international policy arguments. Using a qualitative-descriptive approach, this study examines transcripts of official speeches and identifies quotations that represent each persuasive mode. The analysis shows that Prabowo builds ethos through historical references, concrete actions of Indonesia such as the contribution of peacekeeping troops, and pathos is depicted through narratives of suffering, calls for solidarity, and an emphasis on the future of the younger generation; while logos is demonstrated through the presentation of data, policy plans such as the net-zero target, technical solutions such as sea walls, and systematic cause-and-effect arguments. This combination of ethos, pathos, and logos confirms that the speech was not simply a policy statement but also a rhetorical diplomatic tool that strengthened Indonesia's image as a constructive global actor. These findings contribute to the study of leadership communication and diplomatic rhetoric, particularly in the context of developing countries seeking to enhance the role of multilateralism and soft power.

This study aims to conduct an in-depth analysis comparing the legal mechanisms of constitutional amendment in Indonesia and South Africa. The research employs a normative juridical method with a comparative law approach. Primary data is sourced from the authoritative texts of the 1945 Constitution of the Republic of Indonesia (UUD 1945) and the Constitution of the Republic of South Africa, 1996. Data analysis is conducted qualitatively using content analysis techniques on provisions related to constitutional amendments in both supreme legal documents. The research findings reveal fundamental differences in the constitutional amendment paradigms of both countries. First, Indonesia adopts a rigid amendment system implemented by the People's Consultative Assembly (MPR) with very strict quorum and approval requirements. Second, South Africa adopts a more flexible and differentiated system, where Parliament acts as the constituent authority, with varying approval levels depending on the substance of the amended provisions ranging from simple majority to two-thirds, and even involving the Provincial Council for certain matters. Third, despite different approaches, both countries affirm the principle of constitutional supremacy. These mechanistic differences reflect Indonesia's strategic choice to prioritize consensus and constitutional stability, while South Africa emphasizes constitutional adaptability and responsiveness to socio-political developments.

Waste candlenut shells are one type of biomass that has significant potential to be developed as an alternative energy source, particularly in the form of briquettes. Candlenut shells, which are typically discarded as agricultural waste, contain combustible material that can be transformed into solid fuel. However, the traditional briquette molding process is still done manually, which is time-consuming, inefficient, and often results in inconsistent briquette shapes and density. This study aims to design and develop a briquette molding machine specifically for processing candlenut shell waste, with the goal of improving both production efficiency and the quality of the briquettes produced. The research methodology includes several stages: mechanical design, selection of appropriate materials, fabrication of machine components, assembly, and performance testing of the machine. The resulting machine utilizes a screw conveyor compression system powered by a 5.5 HP petrol engine. It features a cylindrical mold with a 40 mm diameter to shape the briquettes uniformly. During the performance test, the machine demonstrated a maximum production capacity of 14.3 kg per hour, with an average processing time of 24 minutes and a briquette yield reaching up to 85%. The findings indicate that the machine can significantly streamline the briquette production process while maintaining product consistency and quality. This briquette molding machine is particularly suitable for household and small-scale industries aiming to utilize renewable energy sources and reduce dependency on fossil fuels. The use of this machine also supports environmental sustainability by converting agricultural waste into a usable energy product.  

This community service program aims to strengthen the competence of automotive workshop MSMEs in mastering microcontroller-based starter system technology, enabling them to adapt to the era of vehicle digitalization. The program was carried out through several stages: identification of training needs, delivery of basic theory on microcontrollers and starter systems, practical sessions in module assembly and programming, followed by mentoring and evaluation. The results of the evaluation showed an 85% increase in participants’ understanding of the digital starter system concept, an 80% improvement in module assembly and programming skills, and a 75% increase in readiness to apply innovative starter systems in workshop services. The novelty of this activity lies in the development of a more applicable digital starter system model tailored to the needs of small-scale workshops. The implementation emphasized a participatory, practice-based approach using learning by doing. Participants, mainly workshop owners and technicians, were guided step by step from component recognition, software operation with Arduino IDE, to the prototyping of functional microcontroller-based starter systems. To ensure sustainability, the program also provided training modules, video tutorials, and online mentoring, allowing participants to continue practicing independently after the training. Beyond improving technical competence, this activity also fostered an innovative mindset among participants, making them more confident to provide modern, technology-oriented services. In the long term, the program is expected to enhance the competitiveness of automotive MSMEs, strengthen customer trust, and build collaborative networks between higher education institutions and local workshops in supporting vocational education and digital transformation.

This study presents a modal analysis of Pertamina EP Cepu’s closed drain pump 510-P9002, which operates in the condensate–water treatment unit of the Jambaran Tiung Biru field. Field vibration measurements conducted in August 2024 indicated a fundamental frequency of 25 Hz, corresponding to 1×RPM of the driving motor, with maximum amplitudes reaching 13.46 mm/s. Such excessive vibration poses risks of mechanical damage, reduced equipment service life, and potential operational failure. To address this issue, finite element analysis (FEA) was employed to examine the dynamic response of the pump, determine its natural frequencies, and identify possible resonance conditions. A CAD model of the pump–vessel assembly was developed, meshed, and analyzed under actual boundary conditions. The results showed several natural frequencies ranging between 23.16 and 26.65 Hz, which are close to the excitation frequency, suggesting a very high likelihood of resonance. Various structural modifications were then evaluated, including a half casing and two types of full casings. Among these, the full casing B design provided additional stiffness in the motor support area; however, none of the modifications effectively reduced vibration within the internal components. Based on these findings, the study recommends the implementation of a dynamic vibration absorber (DVA) tuned to the excitation frequency, along with the redesign of structural components to shift natural frequencies away from operating excitation. These solutions are expected to improve operational stability, extend equipment lifespan, and enhance overall system reliability. The outcomes of this research provide important insights for managing vibration issues in pump systems operating under similar conditions, particularly in the oil and gas industry where continuous, stable operation is critical.

Water heating systems on ships play a crucial role in supporting crew comfort and operations. However, conventional systems generally operate continuously without automatic control, resulting in energy waste and high operational costs. This situation drives the need for innovation in more efficient and environmentally friendly water heater designs. This research aims to design and implement an automated water heater temperature control system based on an ESP32 microcontroller with on/off control and the use of paraffin wax as a latent heat storage medium. This design is expected to improve energy efficiency while reducing the operational costs of water heaters on ships. The research methodology includes system design, hardware assembly, and performance testing, both static and dynamic. Testing was conducted to evaluate temperature stability and energy efficiency in system conditions with and without the use of paraffin wax. The results showed that paraffin wax improved water temperature stability while reducing the frequency of heater activation. In a 24-hour test, the system without paraffin wax recorded a heater operating time of 15 hours, consuming 8.85 kWh of electricity and costing Rp11,965.20. In contrast, the Paraffin Wax system only requires 10 hours of heater operation, consumes 5.90 kWh, and costs Rp7,976.80. This demonstrates energy savings of 2.95 kWh and a cost efficiency of up to 58%. Therefore, the ESP32-based water heater automation system and heat storage using Paraffin Wax are proven to be more energy-efficient, cost-effective, and have the potential to be an innovative and environmentally friendly solution for ship operational needs.

The Village Consultative Body (BPD) plays a strategic role in overseeing the implementation of village governance to ensure transparent, participatory, and accountable governance. However, in practice, the effectiveness of the BPD's role is often influenced by various internal and external factors. This study aims to analyze the role of the BPD of Kersik Tuo Village in improving village government accountability based on the five dimensions of Servqual developed by Parasuraman, Zeithaml, and Berry, namely tangibles, reliability, responsiveness, assurance, and empathy. The research uses a descriptive qualitative approach with a case study method. Primary data was obtained through in-depth interviews with the BPD chairperson, village officials, and BPD members, while secondary data was sourced from official village documents, accountability reports, and related literature. Data analysis was conducted using the interactive Miles and Huberman model, which includes data reduction, data presentation, and conclusion drawing.The results of the study indicate that in the tangibles dimension, the BPD has provided physical facilities and information media that support transparency; in the reliability dimension, the BPD consistently carries out supervision in accordance with the planning and implementation cycle of village programs; in the responsiveness dimension, the BPD quickly responds to complaints and aspirations from the community; in the assurance dimension. Factors supporting the role of the BPD include the commitment of members to transparency, clear regulatory support, and partnerships with village officials and the community. Meanwhile, the main obstacles include limited human resources, supporting facilities, and suboptimal community participation. In conclusion, the BPD of Kersik Tuo Village has played a fairly effective role in maintaining the accountability of village administration, although there is still a need to improve the capacity of members, strengthen facilities and infrastructure, optimize public participation, and utilize information technology to support transparency and the quality of village public services.