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This research seeks to examine adaptive and sustainable internal governance approaches to enhance the operations of the Household Division within the General Bureau at the East Java Province Regional Secretariat. The study concentrates on four main elements: the integration and compatibility of SIM-BMD with financial systems and LPSE, technology-driven centralized logistics frameworks, the execution of asset lifecycle SOPs involving preventive maintenance and quick transfer methods, and the enhancement of human resource capabilities through targeted training and the creation of digital leaders. Employing a qualitative descriptive approach within a case study framework, information was gathered via detailed interviews, participatory observation, and analysis of institutional documents. The results indicate that integrating systems improves transparency, efficiency in reporting, and accountability in asset management. The centralized logistics approach paired with intelligent warehouse techniques greatly enhances distribution efficiency and decreases operational expenses. Additionally, proactive asset lifecycle management reduces the chances of asset deterioration and prolongs its useful life. Nonetheless, inconsistent digital skills among staff continue to pose a significant obstacle, necessitating ongoing training initiatives and guidance. The research suggests promoting a data-centric work environment, inclusive digital advancements, and collaboration among departments to establish a professional, effective, and sustainable internal governance framework consistent with the tenets of good governance and smart government

This study examines the influence of internal communication and leadership style on employee work motivation at Public Relation Agency XYZ. The research focuses on understanding how these two organizational factors shape the motivation levels of employees, particularly freelance experts who contribute significantly to the agency’s performance and service quality. Using a quantitative approach, data were collected through a structured survey designed to capture employees’ perceptions of communication effectiveness, leadership characteristics, and motivational conditions within the agency. The collected data were then analyzed using SmartPLS to test the proposed relationships. The findings indicate that both internal communication and leadership style exert a significant and positive influence on work motivation, highlighting the crucial role of clear information flow and supportive leadership behavior. Moreover, the results suggest that enhancing communication practices and applying a more transformational leadership style can substantially improve employee motivation. This study offers practical recommendations for strengthening internal communication systems and leadership development initiatives to foster higher engagement, productivity, and overall motivation among employees at Public Relation Agency XYZ.

Bridge planning is a fundamental aspect in the development of transportation infrastructure that functions to connect regions, facilitate traffic flow, and support economic and social growth in the community. This study aims to comprehensively examine the stages of bridge planning, from identifying traffic needs and analyzing geotechnical conditions to selecting a structure type, and evaluating technical, economic, and environmental aspects. The methods used include field surveys, traffic data collection, design load analysis, and structural simulation using modeling software. The study results indicate that bridge type selection is not only determined by load capacity and cost efficiency, but must also consider sustainability, aesthetics, and the impact on the surrounding ecosystem. This study emphasizes the importance of integrating technical, social, and environmental aspects in bridge planning, so that the resulting design can provide a safe, efficient, and sustainable solution. Thus, bridge planning is not merely a technical process, but also a development strategy that supports connectivity and community welfare.

Frequent damage to the grinding disc components and the transmission system of the 15 kg/hour rice flour grinder is a problem faced. The purpose of scheduling component maintenance and repairs is to obtain predictions of maintenance and repair schedules and costs for the period 2026. The component maintenance and repair scheduling method includes examining previous period maintenance and repair data, applying the inspection-replace-repair-overhaul (IRRO) method, assessing component conditions, estimating component life, estimating technician costs, estimating supporting work equipment and supporting materials to be used in maintenance, estimating the time for replacing spare parts or reinstalling components after repair, estimating maintenance and repair costs in 2026, and calculating the maintenance cost to profit ratio. The results of component maintenance and repair scheduling show that the maintenance cost in 2026 is Rp 1,370,000,- with an estimated annual profit potential of Rp 21,600,000, and the maintenance cost to profit ratio is 6.3%, which implies that the 15 kg/hour rice flour grinder is still quite prospective and feasible to use for the next few years.

Progressive wear on drive belt components, brake lining thickness, double lining bowl and other components of continuously variable transmission (CVT) on 160 cm3 automatic motorcycles are the problems faced. The purpose of component replacement planning is to obtain maintenance costs in 2026 and maintenance to profit ratio. The component replacement planning method includes collecting previous maintenance data, applying the inspection-replace-repair-overhaul (IRRO) method, evaluating component conditions, predicting component lifespan, predicting labor costs, predicting supporting equipment and supporting materials to be used in maintenance, predicting spare part replacement time, predicting maintenance costs in 2026, and calculating the maintenance cost to profit ratio. The results of component replacement planning obtained maintenance costs in 2026 are IDR 8.151.667,- with an estimated rental rate for Automatic Motorcycles of IDR 12,500/hour which has the potential to be rented for 3960 hours/year, and the ratio of maintenance costs to profits is 16.4% which implies that the 160 cm3 Automatic Motorcycle which was first used in 2021 is still prospective to generate profits and is suitable for use in the coming years.

The problem lies in the difficulty of locking the pulley retainer on automatic motorcycle transmissions without using a special Y-shaped key. The purpose of the study is to obtain a special pulley retainer lock product on automatic motorcycle transmissions that can be adjusted the distance between the two retaining pins through adjusting bolts with easy and effective locking steps. The study method includes the design of the pulley retainer lock component formation, the selection of stainless steel pulley retainer lock materials, the production of pulley retainer lock components through flat and curved forging, turning the handle, forming a Y-shaped lever pair plate, drilling 2 holes at the ends of the lever, drilling the Y-shaped auxiliary tool opening and closing pins, and drilling the Y-shaped auxiliary tool opening distance adjustment bolts, assembling the components that form the pulley retainer lock, and testing the use of the pulley retainer lock. The production results are in the form of a special pulley archery key with a total length of 300 mm, the maximum opening distance on the axis of 2 pens is 110 mm, the length of 2 pen tips is 7 mm with a total pen length of 30 mm, and one diameter is 9 mm with a total pen length of 30 mm, the adjusting bolt for the opening angle of the pulley retaining key measures M6x20 mm, and the diameter of the Y-shaped tool rivet pen used is 6 mm.

The problem with the sugarcane press machine is a decrease in performance in sugarcane pressing because it has been used since 2020 with an initial price of IDR 3,000,000, which is predicted to be IDR 5,500,000 in 2025 which occurs in the main components of the roler mill, V-belt, and bearings. The purpose of scheduling replacements and repairs is to obtain a schedule, estimated maintenance costs, and the ratio of replacement and repair costs to the profit of renting a sugarcane press for the period 2026. The scheduling method includes collecting data on the use of the sugarcane press machine, a list of replacements for 5 components for roler mills, V-belts, bearings, gasoline motor tanks, and engine frames from 34 components, component prices, estimated labor costs, equipment costs, supporting material costs, application of the inspection, replace, repair, and overhaul (IRRO) method, scheduling replacements and repairs, and calculating the ratio of replacement costs to profits. The results of the replacement and repair scheduling are in the form of maintenance costs of IDR 958,000, with a rate of IDR 10,000/hour for 588 hours/year, resulting in a profit of IDR 5,880,000, and a ratio of maintenance and repair costs to profit of 0.16%.

Problems in the meatball dough grinder are low production, increasing maintenance costs and disappointed meatball dough customers who receive orders late due to problems with the electric motor, Pulley, V belt, cutting knife. The purpose of the replacement scheduling is to obtain costs, maintenance-repair schedules in the period 2026, and the ratio of maintenance costs to profits. The replacement scheduling method includes collecting previous period maintenance data, applying the inspection-replace-repair-overhaul (IRRO) method, evaluating component working conditions, predicting component life, predicting repairman costs, predicting supporting equipment that will be used in maintenance, predicting the time to replace spare parts or reinstall components after repair, estimating maintenance and repair costs in 2026, and calculating the ratio of maintenance costs to profits. The results of the replacement scheduling show that the maintenance costs in 2026 are IDR 2,530,000 with an estimated rental rate for the meatball dough grinder of IDR 10,000/kg which has the potential to be rented for 1300 hours/year, and the ratio of maintenance costs to profits is 4.9% which implies that the meatball dough grinder with a capacity of 5 kg/hour still has the potential to sell well and is suitable for use in the coming years.

This literature study evaluates the accuracy of the Slope Mass Rating (SMR) method for coal mine slope stability in Indonesia through a systematic descriptive synthesis of 25 empirical studies from 2020 to 2025. The objectives of the study were to identify the level of SMR prediction accuracy, factors affecting the method's performance, and modifications required for local Indonesian conditions. The research method involved a systematic search with inclusion criteria for empirical studies reporting SMR and/or Safety Factor (SF) values ​​for coal mines and associated slopes in Indonesia. Quantitative analysis showed a range of reported SMR values ​​between 41 and 96 with a median of 72, while SF values ​​ranged from 1.137 to 4.09 for normal operational conditions. The synthesis results indicated that SMR provides a consistent stability classification for initial slope design and failure mode identification (planar, wedge, toppling), with historical validation showing a correlation of up to 91.23% between SMR-based hazard zoning and actual field events in some cases. Key limitations include dependence on discontinuity data quality, sensitivity to groundwater conditions and tropical weathering, and variation in the interpretation of adjustment factors F1-F4. Modifications such as NAAF23 and integration with numerical modeling have been shown to improve prediction reliability. It is recommended that coal mining practitioners combine SMR with kinematic analysis and limit equilibrium modeling as standard operating procedures, and develop adjustment factors specific to Indonesian geological conditions. Further research should focus on standardizing parameter reporting and cross-site quantitative validation to enable more robust statistical meta-analyses.  

Carbonate rocks are one of the most important geological resources with a significant role in various industrial sectors, particularly as the main raw material in cement, lime, and construction industries. This study aims to review the characteristics, quality, and industrial potential of three major carbonate rock types—limestone, dolomite, and marble—based on relevant scientific literature. The research employed a literature review method using a qualitative-descriptive approach through analysis and synthesis of previous studies. Data were collected from scientific publications addressing the mineralogical, chemical, and physical aspects of carbonate rocks and their implications for industrial performance. The findings indicate that the quality of carbonate rocks is largely determined by mineral composition (calcite and dolomite), chemical purity (CaO and MgO), and the presence of impurities such as silica, alumina, and iron oxides. High-purity limestone rich in calcite is identified as the most efficient raw material for cement and lime industries due to its stable processing behavior and lower energy requirements. Conversely, dolomite with high magnesium content requires process adjustments to prevent excessive MgO formation during calcination. Marble, both in natural and waste powder form, shows promising potential as a supplementary material in sustainable cement production. Overall, this study emphasizes that understanding the mineralogical and chemical variations of carbonate rocks is essential for optimizing their processing strategies and promoting sustainable industrial utilization 

Civil engineering infrastructure development plays a vital role in driving economic progress and enhancing the quality of life within communities. The success of infrastructure projects depends not only on budgetary and technological factors but also on the quality of human resources (HR) involved in every project phase, from planning to maintenance. This literature review highlights that skilled and competent HR is a critical factor in achieving project success, particularly amidst increasing complexity and the challenges posed by globalization. Key issues faced by the sector include a shortage of skilled labor, high turnover rates, and a misalignment between educational outcomes and the skills required in the field. Additionally, technological advancements, such as the adoption of Building Information Modeling (BIM) and Artificial Intelligence (AI), demand continuous skill enhancement to adapt to the growing automation of industry processes. Effective HR management—encompassing ongoing education, fair incentive systems, and the integration of technology into HR practices—is essential for boosting productivity and mitigating risks during project execution. A comprehensive approach, including a structured HR management system, is required to ensure the sustainability and quality of infrastructure development. This study aims to provide an in-depth understanding of the critical role of HR management in the civil engineering sector and proposes practical recommendations for improving HR quality to meet the evolving demands of the construction industry.  

The production process of wooden batik at Sanggar Peni Krebet plays an important role in preserving local culture and supporting the economy, but workers face the risk of musculoskeletal disorders due to unergonomic working positions when performing activities such as sculpting, sanding, batik making, and boiling . Based on the NBM questionnaire on 15 workers, the highest complaints were found in the right upper arm (100%), right wrist (100%), and waist (88%). Research using the RULA and REBA methods revealed the batik activity to have a very high risk (RULA 7, REBA 11), requiring immediate improvement, while boiling had a medium to high risk (RULA 5, REBA 9), requiring investigation and change. The EFD emphasizes the importance of designing batik boiling stoves, chairs and tables that consider height according to the worker's body size, ergonomic working positions, and comfortable strainer handles. Tool development should focus on improving comfort, safety and efficiency, with design adjustments to support workers' postures and use lightweight yet strong materials. The application of these elements is expected to improve safety and productivity in the batik industry.

Damage to rotable axle components on CAT KT4 Loaders in the mining industry is often the main cause of operational downtime. This study aims to analyze the frequency of damage to axle components and evaluate the effectiveness of preventive maintenance to reduce downtime duration and repair costs. Damage data collected from January to August 2024 were quantitatively analyzed to identify the most frequent damage patterns, especially seal leaks and brake modules. The results show that the implementation of preventive maintenance, such as regular seal replacement and hydraulic pressure checking, can significantly reduce the frequency of breakdowns and improve operational efficiency. The research also provides recommendations on maintenance strategies that can be implemented to extend component life and reduce overall downtime.

This study analyzes the water storage capacity and operational patterns of reservoirs in the Surabaya Industrial Estate Rungkut (SIER) to support efficient and sustainable water resource management. The research adopts a quantitative approach by collecting hydrological data, analyzing storage capacity, and simulating reservoir operations based on seasonal scenarios. The findings indicate that SIER's reservoirs have sufficient capacity to meet industrial water demands, although a supply deficit occurs for four months annually. Technical optimization efforts, such as sediment dredging, have proven to increase storage capacity by more than 200%. Practical recommendations for reservoir management include sedimentation normalization and planned operational strategies. These findings are expected to serve as a reference for other industrial zones in addressing water management challenges due to climate variability and increasing industrial demands.  

This experiment investigates the heat transfer characteristics of an ice bag gel phase change material (PCM) incorporated within bricks. The study seeks to investigate the performance of ice bag gel as PCM in improving thermal behavior of building material. The experiment consisted of subjecting brick samples with and without ice bag gel PCM to thermal cycles in a semi-automated laboratory setup. The results indicate that ice bag gel PCM incorporated in bricks exhibited minimal changes and better heat transfer as compared to the dry bricks. It was observed that the ice bag gel PCM registered lower peak temperature and slower rates of temperature drop which means their heat storage and release characteristics were efficient. Furthermore, the ice bag gel system produced a steady radiation flux, indicating that it was able to minimize the effects of temperature variations. These results imply that ice bag gel PCM has the potential to be a green and economical option for enhancing thermal comfort and decrease energy consumption in buildings.

As one of the graduation criteria at Nahdlatul Ulama University Lampung, student activity point management requires a reliable system. Currently, the manual mechanism implemented still encounters obstacles in the form of data inaccuracy and a lengthy verification process. This research aims to build a website-based Student Activity Point Information System to improve the quality of data management. Software development was carried out using the Waterfall model, starting from the analysis stage, design using UML, technical implementation (HTML, CSS, PHP, MySQL), to the functional testing stage. Through this system, students can submit activities online, while the administrator can validate and print point reports automatically. Based on the results of the Black Box test, all features in the system operate as designed. The presence of this system provides a more accurate and efficient solution, making it a credible support tool for the student affairs department. This system is expected to provide a more efficient and accurate solution in student activity point management, as well as support smooth administration and improve the quality of student affairs department services.

Break-even point analysis is conducted to assess a company's performance, providing insight into the importance of financial bookkeeping and economic analysis. It can also be used as a consideration for entrepreneurs in making decisions related to sales activities. Break-even point refers to a concept used in financial planning to determine the level of sales or revenue required to cover all costs and expenses, resulting in zero profit or loss. The PKM training is conducted in three stages: the preparation stage, where an initial survey is conducted to determine participants' knowledge of the Break-Even Point (BEP) calculation. The implementation stage, where training is provided to all fishermen on the BEP calculation. The monitoring and evaluation stage, where the implementation of the BEP calculation is monitored and the fishermen's understanding of the break-even point is evaluated. Break-even point (BEP) training is expected to improve business owners' and crew members' understanding of the BEP concept and enable them to apply BEP calculations in decision-making.

The educational transformation driven by Industry 4.0 and Society 5.0 requires teachers’ digital pedagogical competence. Preliminary observations at SMP Negeri 2 Galesong Selatan, Takalar Regency, South Sulawesi, Indonesia, revealed a skills gap: conventional practices dominate while digital platforms remain underutilized. This community engagement program sought to bridge the gap through intensive training on Canva for visual learning media and Quizizz for gamified assessment. Conducted in August 2025 with 10 teachers across subjects, the program employed a participatory, four-stage procedure: preparation; socialization and pretest; training and coaching; and evaluation and posttest. Data were collected via observation, questionnaires, and knowledge tests, and analyzed descriptively and comparatively. Results indicate a marked improvement in teachers’ digital competence: the average score increased from 45 (pretest) to 85 (posttest), an 88.9% gain. By indicator, improvements reached 112.5% for understanding Canva features, 95.5% for digital learning media creation, and 64% for using Quizizz. Qualitatively, teachers produced engaging posters/infographics and slide presentations and designed interactive quizzes with instant feedback, fostering more varied and participatory classroom dynamics. The training effectively enhanced teachers’ digital literacy and confidence and supported a role shift from content deliverers to creative facilitators within student-centered learning. Replication and sustained coaching are recommended to consolidate a school-wide digital learning ecosystem.  

Schools play a strategic role in fostering an understanding of entrepreneurship from an early age to equip students to face future challenges. Strengthening entrepreneurial concepts is necessary to build knowledge and an adaptive mindset relevant to the dynamics of the workplace and everyday life. This Community Service (PkM) activity, conducted at Muhammadiyah Bontomarannu High School, aimed to foster students' entrepreneurial spirit through practical logo creation using the Canva app, as an effort to foster a culture of innovation within the school environment. The program was implemented in the odd semester and included a method that included explaining basic entrepreneurial concepts through presentations, educational YouTube videos, explanations of digital business opportunities, and hands-on practice in product logo creation. Nineteen students from grades 10, 11, and 12 participated in this activity. The results showed that students were able to understand the concepts of creativity and innovation more concretely. They also developed critical thinking and creative problem-solving skills through the logo design process using digital applications on mobile devices. These findings reflect the developing adaptive, creative, and solution-oriented abilities of Muhammadiyah Bontomarannu High School students. Overall, this activity is an initial step in instilling an entrepreneurial mindset while strengthening a culture of innovation within the school environment and in daily life.

The rapid development of digital technology demands that literature learning in junior secondary schools be delivered in a more interactive and student–relevant manner. However, classroom practices remain dominated by lecture-based instruction, resulting in low student engagement and limited appreciation of literary texts. This study aims to describe the use of digital media in teaching fiction and nonfiction texts in Grade VII, as well as to explore students’ experiences and challenges during project based learning activities. Employing a qualitative descriptive design, the study involved Grade VII students and a Bahasa Indonesia teacher. Data were collected through classroom observations, in-depth interviews, and documentation of students’ digital project outputs. Data were analyzed through reduction, display, and conclusion drawing. The findings indicate that integrating digital media with Project Based Learning enhances student engagement through text analysis, group discussions, and digital project creation. Learning also becomes more inclusive through ability-based grouping and more meaningful when materials are connected to students’ local cultural contexts. The study concludes that digital media combined with PBL strengthens students’ literary literacy and learning motivation. The implications suggest that teachers need to develop stronger digital pedagogical competencies and schools should provide adequate technological support.