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The problem with a passenger car with a capacity of 15 people lies in its unscheduled maintenance and having broken down on the road. The purpose of component replacement planning is to obtain component replacement costs, maintenance and repair schedules for the 2026 period, and the maintenance cost-to-profit ratio. The planning method includes collecting previous maintenance data, applying the inspection-replace-repair-overhaul (IRRO) method, evaluating component conditions, estimating component lifespan, estimating labor costs, estimating supporting equipment to be used in maintenance, estimating the time to replace spare parts or reinstall repaired components, estimating maintenance and repair costs for the 2026 period, and calculating the maintenance cost-to-profit ratio. The results of component replacement planning obtained costs for the 2026 period are IDR 11,780,000 with an estimated passenger car rental rate of IDR 800,000/24 ​​hours (day) which has the potential to be rented for 4,320 hours/year, and the ratio of maintenance costs to profits is 10.33% which implies that passenger cars with a capacity of 15 people are still prospective to generate profits and are suitable for use for the next few years.  

Background: Criminal justice reform has become a crucial global issue in maintaining the balance between the protection of individual rights and state authority, particularly amid the increasing complexity of law enforcement and the risk of abuse of power. Objective: This study aims to analyze the relationship between the principles of due process of law, legal accountability, and the rule of law within criminal justice systems, as well as to compare their implementation in common law and civil law systems. Methods: This research employs a normative and comparative approach through the analysis of legal regulations, criminal justice practices, case studies of procedural violations, and cross-country comparisons, supported by interviews with academics and legal practitioners. Results: The findings indicate that although the principles of due process, legal accountability, and the rule of law are widely recognized, their implementation still faces significant challenges, including weak oversight, procedural inconsistencies, and limited institutional capacity. The comparative analysis also reveals a growing convergence between common law and civil law systems in adopting human rights-based standards, despite differences in procedural approaches. This study concludes that the holistic integration of these three principles is essential to establish a fair, transparent, and accountable criminal justice system.

This study examines the impact of industrial activities in Bontang City, a major center for natural gas processing and fertilizer production, which potentially increases heavy metal contamination in coastal waters. Specifically, the research focuses on the accumulation of lead (Pb) and copper (Cu) in Anadara granosa, a benthic bivalve selected as a bioindicator due to its capacity to accumulate pollutants. The study aims to analyze Pb and Cu concentrations in Anadara granosa tissues collected from the waters of Selangan Hamlet, Bontang City, as an indicator of local environmental quality. The research was conducted over a six-month period, involving shellfish and water sampling from four observation stations. Heavy metal analysis was performed using Atomic Absorption Spectrophotometry, and the results were evaluated against relevant environmental quality standards, including Government Regulation of the Republic of Indonesia Number 22 of 2021. The findings revealed the presence of Pb and Cu at all sampling stations, with varying concentrations. The highest Pb and Cu levels were recorded at the South Station, while the lowest concentrations were observed at the East and North Stations. Overall, the measured concentrations of both metals significantly exceeded established safety limits, indicating serious risks to aquatic ecosystems and human health. These results confirm Anadara granosa as an effective bioindicator of heavy metal pollution and highlight the urgent need for further studies and mitigation efforts.

The problems encountered are damage to the rubber wheel mount and universal/cross joints on the 90 m/hour capacity wood profile making machine, which can affect the uniformity and speed of wood profile making. Maintenance and repair planning aims to be able to create a maintenance and repair schedule for the 90 m/hour capacity wood profile making machine for the period 2026, estimate maintenance costs and the ratio of maintenance and repair costs to machine profits. The maintenance planning method includes collecting maintenance data from previous maintenance periods, reviewing the specifications of the wood profile making machine, estimating the age and price of components that are estimated to be damaged, estimating the cost and duration of dismantling and installing components that have been repaired in accordance with the provisions of the requirements for usable components or replacement spare parts, scheduling maintenance and repairs, estimating maintenance and repair costs for the period 2026, and determining the ratio of maintenance costs to profits. The planning results in the form of a maintenance-repair schedule for the period 2026; maintenance and repair costs in 2026, the ratio of maintenance costs to profits, and their implications indicate that the machine is still prospective and usable.

Farmer empowerment through the development of local agricultural commodities is an important strategy to increase farmers’ income and strengthen the independence of farmer groups. This community service activity aimed to enhance the capacity of the Padimas Farmer Group in Sana Tengah Village, Pasean Sub-district, Pamekasan Regency, through the development of local Madura melon as a regional flagship commodity. The program was implemented using a participatory–collaborative approach that actively involved farmers in all stages of the activity, including the identification of local needs and potentials, provision of demonstration plot land, cultivation assistance, and continuous monitoring and evaluation. The melon demonstration plot served as a practical learning medium for farmers in applying cultivation techniques adapted to local agroclimatic conditions. The results showed that the development of the local melon demonstration plot significantly improved farmers’ knowledge and skills in melon cultivation, with a plant survival rate reaching 99%. In addition, this activity supported the establishment of a group-based flagship commodity with promising economic value and market opportunities. Overall, the farmer empowerment program contributed positively to strengthening farmers’ economic independence and has the potential to serve as a model for sustainable horticultural agribusiness development in the Pamekasan region.

Local governments play a strategic role in public service delivery and are required to undertake rapid, systematic, and sustainable institutional and governance transformation. These demands arise in response to changes in the organizational environment, regulatory developments, and increasing public expectations regarding the quality, effectiveness, and accountability of public services. Improving the capacity of human resources, particularly those managing services and complaints, is a crucial factor in ensuring professional, adaptive, and technology-based services. However, issues with staff competency are still found in public service institutions that interact directly with the public, particularly at the sub-district level. In an effort to improve the quality of public administration services, the government established the Integrated Sub-district Administrative Services (PATEN) policy as stipulated in Minister of Home Affairs Regulation Number 4 of 2010. This study aims to analyze the implementation of the PATEN policy in Sawangan District, Depok City, using a qualitative approach and descriptive methods. The results indicate that the implementation of PATEN has generally been effective, marked by the fulfillment of substantive, administrative, and technical aspects, and supported by clear regulations. However, public complaint services have not been optimal due to technical constraints in the website-based complaint system.

This paper discusses the role of the global minimum tax in addressing tax avoidance by multinational corporations in Indonesia. This policy is the result of an agreement between the OECD/G20 (Organization for Economic Co-operation and Development) in the Base Erosion and Profit Shifting (BEPS) 2.0 project, which aims to reduce global tax avoidance practices by multinational corporations (MNEs). With a minimum rate of 15%, the GMT is expected to create fiscal justice and strengthen the tax base in developing countries like Indonesia. This research uses a qualitative approach based on a review of literature from the OECD, IMF, and academic journals. The analysis shows that the implementation of the GMT has positive potential in increasing state revenues, but also poses administrative challenges and the risk of reducing investment competitiveness. The Indonesian government needs to adjust tax regulations and strengthen fiscal administration capacity to optimize the benefits of this policy. This study also confirms the importance of international cooperation in the successful implementation of the GMT and reducing the potential for tax avoidance by multinational corporations. Furthermore, regular monitoring and evaluation are needed to assess the impact of this policy on the Indonesian economy and to ensure that the implementation of the GMT does not hinder economic growth and investment in strategic sectors.

This study aims to evaluate the public transportation service policy of Trans Jatim Bus Corridor 2, operating on the Mojokerto–Surabaya route, using the six evaluation indicators proposed by William N. Dunn: effectiveness, efficiency, adequacy, equity, responsiveness, and appropriateness. Employing a qualitative descriptive approach, data were collected through interviews, direct observations, and secondary data analysis. The findings reveal that the Trans Jatim Corridor 2 service has significantly contributed to improving accessibility and mobility for the people of East Java. In terms of effectiveness, the service meets transportation policy objectives by offering strategic routes, consistent schedules, and accessible bus stops. Efficiency is demonstrated through optimal utilization of limited fleets and operational costs, while still meeting high passenger demand. Regarding adequacy, the service is generally sufficient; however, overcrowding during peak hours indicates the need for capacity improvements. Equity is reflected in the widespread distribution of bus stops, although disparities remain in the availability of facilities and route information across several stops. The service shows high responsiveness through quick handling of passenger complaints via applications and social media. Additionally, service appropriateness is evident in its punctual operations supported by GPS-based monitoring and real-time information through the TRANSJATIM-AJAIB application. Overall, the evaluation shows that Trans Jatim Corridor 2 provides effective, efficient, and responsive public transport services, yet requires improvements in capacity and equitable distribution of facilities to achieve optimal service quality.

This community service activity was conducted to assist banking institutions in the Surabaya region in enhancing the effectiveness of marketing strategies for savings products in order to increase the number of customers. The main problems faced by banks include the relatively low level of public interest in saving and the suboptimal implementation of promotional strategies, particularly in the utilization of digital media. This activity employed a collaborative approach through training, mentoring, and joint evaluation with marketing staff of banks in the Surabaya area. This activity commenced with an observation and interview phase to identify the marketing strategies that had been previously implemented. Subsequently, material delivery, technical assistance, along with an evaluation of promotional effectiveness. The results indicate that participants were able to implement more adaptive marketing strategies by utilizing digital media such as social media, website, and banking applications. The implementation of these strategies was shown to increase public interest in opening saving accounts. Furthermore, this activity contributed to enhancing the capacity of marketing staff to design data-driven strategies and to strengthening public financial literacy regarding saving products.

The rapid development of smartphone technology today creates challenges for consumers and manufacturers in determining an objective price range based on highly varied technical specifications. This study aims to implement the Random Forest algorithm in classifying smartphone price ranges into four main categories, namely low, mid-range, high, and flagship. The research method was carried out systematically through the stages of loading a dataset of 2,000 entries, exploratory data analysis (EDA) to ensure data integrity, and model training with a training and testing data split of 80:20. The results showed that the Random Forest model achieved a significant overall accuracy rate of 89%. Based on feature importance analysis, it was found that RAM capacity was the most dominant determining factor, contributing 47% to prediction accuracy, followed by battery power and screen resolution as supporting features. These findings have strategic implications for manufacturers to prioritize memory capacity upgrades in determining product pricing in the market, as well as providing guidance for consumers in assessing the fairness of a device's price based on its technical capabilities.

The development of information technology has given rise to a new form of business transaction: the electronic contract. This contract form replaces the traditional process that requires a physical meeting between the parties. However, questions arise regarding the validity of e-contracts from the perspective of Indonesian civil law, specifically based on Article 1320 of the Indonesian Civil Code (KUHPerdata) and the provisions of Law Number 11 of 2008 concerning Electronic Information and Transactions (UU ITE). This research aims to analyze the validity of electronic contracts as legally binding agreements and to assess the extent to which the ITE Law can serve as their legal basis. Using a normative juridical legal research method, the research results show that e-contracts are valid and binding as long as they meet the requirements for the validity of an agreement under Article 1320 of the Civil Code, namely consent, capacity, a specific object, and a lawful cause. The ITE Law expands the recognition of electronic evidence and digital signatures as valid evidence in civil law. Thus, electronic contracts have the same legal force as conventional contracts, as long as they meet the principles of free will and the integrity of a reliable electronic system.

The decline in the performance of the die casting machine in 1998 after a long period of producing copper terminals showed dimensional defects and instability in product quality, especially in nozzle clogging, reduced copper flow, crust buildup on the gooseneck, plunger movement obstruction, and hydraulic pressure leaks. The purpose of planning the replacement and repair of die-casting machine components is to obtain replacement and repair costs, replacement and repair schedules for the period 2026, and the ratio of maintenance costs to profits. The replacement and repair planning method includes collecting previous maintenance data, applying the inspection-replace-repair-overhaul (IRRO) method, evaluating component conditions, predicting component service life, predicting labor costs, predicting supporting equipment to be used in maintenance, predicting the time to replace spare parts or reinstall repaired components, estimating replacement and repair costs for the period 2026, and calculating the ratio of replacement and repair costs to profits. The planning results obtained replacement and repair costs for the 2026 period are 75.770.000,- IDR with an estimated die casting machine rental rate of  1,500,000 IDR/hour which has the potential to be rented for 1,200 hours/year, and the ratio of maintenance costs to profits is 10,02 % which implies that the die casting machine with a capacity of 40 units/hour is still suitable for use and has the prospect of generating profits for the next few years.

The problem lies in the inconsistent quality of M10 hexagonal head bolts with a spacing of 1.5 mm, a bolt length of 100 mm and slow production speed for manual production. The purpose of the analysis is to obtain consistent, standard, and productive quality of M10 hexagonal head bolts with a spacing of 1.5 mm, a bolt length of 100 mm. The analysis method includes the selection of AISI 1040 raw materials with a diameter of 10 mm in the form of rolls, the determination of the production process through raw material inspection, diameter reduction from 10 mm to 9.8 mm, the formation of hexagonal heads with a machine, cutting the length of the bolts and the bolt end chamfer, making M10 threads with a range of 1.5 mm with a machine, hardening, 10 m thick Zinc coating, thread profile inspection, sample hardness test, and sample tensile test. The results of mass production with the machine obtained a hexagonal head bolt with a thread size of M10x1.5 mm, a bolt length of 100 mm, a capacity of 500 units/hour in accordance with the ISO 9001:2015 standard with a hardness of 30 HRC and a tensile strength of 830 MPa at a cost of Rp. 1133/bolt and a process duration of 8.3 minutes/bolt which implies that product quality can be more guaranteed to be consistent and uniform.

This study aims to understand the meaning of adaptive leadership in modern organizations facing transformations in work culture during the era of disruption. Using a phenomenological qualitative approach within the social constructivist paradigm, this research explores the lived experiences of leaders in interpreting change, uncertainty, and human values amid digitalization and organizational complexity. Data were collected through in-depth interviews and non-participant observation involving eight leaders from various industrial sectors in Indonesia and were analyzed using Colaizzi’s phenomenological analysis technique. The findings reveal that adaptive leadership is understood as a reflective and social process rooted in value awareness, empathy, and collective learning capacity. Adaptive leaders not only direct change but also facilitate learning and build trust through open communication and collaborative work cultures. Adaptive values such as flexibility, empathy, and moral reflection are key to shaping inclusive and sustainable organizational cultural transformation. Theoretically, this study extends the discourse on adaptive leadership within phenomenological and social contexts, while practically emphasizing the importance of value-based reflective leadership in navigating disruptive change.

To improve the competitiveness and well-being of local communities, the growth of community-based village tourism requires the assistance of digital technology. Although Sugihen Village has significant potential for natural and cultural tourism, the use of digital technology in tourism administration and promotion is still minimal. The objective of this community service project is to utilize digital technology to transform community-based tourism in Sugihen Village. The approach used was Participatory Action Research (PAR), which included the stages of needs analysis, digital literacy training and capacity building, implementation of digital tourism technology, mentoring, monitoring, and evaluation. The results of the community service included increased community digital literacy, a stronger position of the Pokdarwis institution in tourism management, and a shift in community perspectives on the use of digital technology as a consequence of the community service activities. In addition to being a marketing tool, digital technology also empowers the community in independent and sustainable tourism management. This activity concluded that the independence of the Sugihen Village community can be strengthened and community-based tourism can be transformed through the use of digital technology accompanied by a participatory approach.

Solid waste management in Makassar City constitutes a strategic issue that extends beyond technical and administrative concerns to encompass legal, ethical, and socioreligious dimensions. Although the local government has established regulatory frameworks and policy instruments for waste management, empirical conditions reveal a persistent gap between legal norms and their implementation, as reflected in high waste generation rates, weak source segregation, limited public participation, and increasing pressure on landfill capacity. This study aims to analyze the effectiveness of waste management in Makassar City from the perspective of Islamic law and to examine the potential integration of Sharia principles in strengthening sustainable environmental governance. The research employs a qualitative approach with a descriptive-analytical design based on policy analysis, literature review, and theoretical synthesis of Islamic legal doctrines, particularly maqāṣid al-sharīʿah and fiqh al-bī’ah. The findings indicate that, despite the existence of adequate local legal instruments, waste management practices remain ineffective due to insufficient internalization of ethical values, weak law enforcement, and limited behavioral change within society. From the perspective of Islamic law, these conditions demonstrate the incomplete realization of the principles of amanah (trust and responsibility), maslahah (public interest), and the prevention of harm (lā ḍarar wa lā ḍirār) in both governmental practice and public conduct, thereby undermining the objectives of protecting human life and the environment. The implications of this research highlight the importance of synergizing positive law and Islamic legal principles to promote environmentally sustainable governance oriented toward long-term public welfare.  

This study examines the implementation of the Minister of Marine Affairs and Fisheries Regulation Number 7 of 2024 concerning the Management of Lobster, Crab, and Blue Swimming Crab in East Kalimantan. As a strategic policy, the regulation aims to ensure sustainable fisheries management through provisions on minimum catch sizes, restocking mechanisms, traceability systems, and law enforcement against illegal fishing and trade. Using an empirical juridical approach, this research collected primary data through questionnaires distributed to fisheries officers, coastal communities, fishers, and aquaculture business actors in East Kalimantan. The results show that the implementation of Regulation No. 7/2024 is generally categorized as moderately effective, with an average Likert score indicating limited but positive compliance. Respondents acknowledged the importance of sustainability principles embedded in the regulation; however, significant challenges persist, including insufficient formal socialization, weak field monitoring, lack of supporting facilities, and inconsistent coordination among implementing agencies (BARANTIN, PSDKP, and local fisheries officers). Qualitative responses highlight that many stakeholders still lack understanding of technical provisions such as minimum size requirements and restocking obligations. The study concludes that while the regulatory framework is normatively comprehensive and aligned with sustainable fisheries principles, its practical effectiveness remains constrained by institutional and socio-cultural factors. Strengthening community engagement, increasing inter-agency coordination, and enhancing enforcement capacity are crucial to optimizing the policy’s impact on the sustainable management of lobster, crab, and blue swimming crab resources in East Kalimantan.

This research uses a qualitative approach with a library research method, focusing on the development of pragmatic thinking in Western and Islamic traditions and its contribution to contemporary education. Data were obtained through literature reviews from books, scientific journals, and previous research results. Data analysis was conducted using content analysis techniques to identify similarities and differences in Western and Islamic pragmatic thinking. The results of the study indicate that Western pragmatism developed through Peirce, James, and Dewey, who emphasized truth based on practical consequences and usefulness in life. Islamic pragmatism, although not explicit, is reflected in the thoughts of Al-Ghazali and Ibn Khaldun, who combine revelation with empirical experience and public welfare. The contribution of pragmatism to contemporary education includes: (1) educational goals oriented towards social experiences and problem-solving; (2) the position of students as active subjects with growth capacity; (3) curriculum development that is flexible, experience-based, and adaptive to social changes. this research states that Western and Islamic pragmatism both provide important contributions to contemporary education, shifting the focus from knowledge transfer to the development of competencies and characters that are relevant.  

Participatory village development planning is often treated as a technical-administrative routine. In practice, however, planning is inseparable from political dynamics that shape who participates, whose interests prevail, and how scarce resources are allocated. This community empowerment program (PKM) in Kedung Udi Village, Trawas District, Mojokerto Regency, East Java, aimed to strengthen village governance by enhancing the capacity of village officials and community representatives to design and facilitate participatory planning while explicitly addressing the political dimension of planning. The main intervention was a workshop conducted on 22 August 2025, preceded by coordination and situational observation. Workshop modules emphasized: (1) planning as a political decision; (2) navigating dual arenas: formal (Musdes/Musrenbang and RPJMDes, RKPDes, APBDes) and informal (elite networks and gatekeeping); (3) multi-level contestation and policy alignment; and (4) practical tools, including power–interest mapping, programmatic agreements, program tagging for alignment with district planning documents, and transparency/anti elite capture mechanisms. The program resulted in improved participant literacy regarding power relations in planning and produced a follow-up action plan oriented toward institutional advocacy, continuous social control, and routine capacity reinforcement through a university and village partnership.

This Community Service Program (PKM) aims to provide direct socialization and mentoring to Micro, Small, and Medium Enterprise (MSME) actors in Biring Ere Village to enhance the quality and sustainability of their businesses. MSMEs play a vital role in the village economy as drivers of local economic growth and employment. However, various obstacles such as limited access to capital, low quality of human resources, restricted market access, lack of product innovation, and weak business management remain major barriers. This community service activity was conducted through interactive socialization methods, skills training, direct mentoring, and focused group discussions involving MSME actors, village heads, village officials, and the general community. The materials presented included business development strategies, basic financial management, product marketing techniques, product innovation and diversification, and access to capital. The results demonstrated increased understanding among MSME actors regarding business development strategies, heightened motivation to innovate, formation of collaborative business groups, and enhanced awareness of the importance of sound business management. This program has had a significant impact on empowering the community's economy and strengthening the capacity of MSME actors in Biring Ere Village to face global economic challenges.