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This research investigates intelligent cooling system design for main ship engines operating in tropical waters, integrating advanced machinery engineering with human factors to address thermal management challenges affecting engine performance, reliability, and crew operational effectiveness. Tropical maritime environments impose severe cooling demands through elevated seawater temperatures (28-32°C), high ambient conditions (28-35°C), and accelerated biofouling, reducing conventional cooling system effectiveness by 15-25% while increasing maintenance burdens and operational risks. Through qualitative analysis involving marine engineers, chief engineers with tropical operational experience, cooling system manufacturers, naval architects, automation specialists, and maritime training institutions, this study examines how intelligent cooling systems incorporating variable-speed pumps, adaptive control algorithms, predictive maintenance, and crew-centered interfaces can optimize thermal management while supporting effective human-machine collaboration. Results demonstrate that intelligent systems can reduce cooling energy consumption by 20-35%, improve temperature stability by 50-65%, extend maintenance intervals by 40-80%, and enhance crew situational awareness through intuitive monitoring interfaces, while requiring comprehensive training programs developing technical understanding and operational competencies. Key implementation challenges include control system complexity, sensor reliability in harsh marine environments, integration with existing engine management platforms, crew competency development requirements, and lifecycle cost justification. Findings reveal that successful intelligent cooling system implementation requires holistic sociotechnical approach addressing machinery engineering optimization, automation technology deployment, and human capability development through coordinated design and training strategies. This research contributes to marine engineering literature by providing integrated frameworks for intelligent system design incorporating machinery performance, automation capabilities, and human factors supporting operational excellence in tropical maritime operations.

Particularly in emerging nations, corporate environmental criminality poses a serious threat to environmental justice, sustainable development, and legal responsibility. With a focus on corporate crime theory and green criminology, this study critically analyzes corporate environmental crime using an integrative framework that blends modern criminological viewpoints with Islamic criminal law (fiqh al-jināyah). This study examines how Islamic legal concepts, particularly the doctrine of maqāṣid al-sharī‘ah, can enhance current models of corporate criminal responsibility and environmental governance using a normative-analytical and conceptual approach. The results show that structural incentives, lax enforcement, and profit-driven rationalization tactics make traditional regulatory and penal measures ineffective at discouraging corporate environmental malfeasance. Islamic criminal law provides a revolutionary framework that places environmental conservation as both a legal requirement and a moral necessity because of its strong ethical orientation and comprehensive view of justice. With a focus on ecological balance (ḥifẓ al-bi’ah), property (ḥifẓ al-māl), and life preservation (ḥifẓ al-nafs), this study offers a value-based corporate accountability approach that goes beyond deterrence-oriented punishment and prioritizes prevention, restoration, and social responsibility. By broadening the doctrinal scope of Islamic criminal law to acknowledge corporate criminal culpability, this integrative approach makes a theoretical contribution. Practically, it informs regulatory enforcement and environmental policy change. The study presents an interdisciplinary paradigm that unites criminological analysis and religious legal reasoning, providing a strong basis for creating environmental governance systems that are just, moral, and sustainable, especially in developing nations and jurisdictions with a majority of Muslims.

Cultural traditions play a vital role in sustainable tourism by shaping social values, collective identity, and long-term cultural continuity. Caos Dahar, a Javanese practice involving communal food preparation and sharing, serves as an expression of gratitude, spirituality, and social cohesion. Despite its cultural significance, it has been rarely examined from a management perspective, particularly in relation to its integration into sustainable tourism systems. This study analyzes Caos Dahar as a form of cultural tradition management and explores its contribution to sustainable tourism. The research highlights the lack of management-oriented studies combining cultural traditions with sustainability frameworks. A qualitative descriptive approach was adopted, using secondary qualitative data from documented practices and relevant academic literature. Data were analyzed using thematic categorization and interpreted through a multi-theoretical framework, including motivation theory (ERG), social network theory, and cultural philosophy. The findings reveal that Caos Dahar functions as a managed cultural practice, involving implicit management processes such as planning, coordination, and role distribution. The tradition fulfills existential, relational, and growth-oriented needs, sustains social networks, and exhibits adaptability across various cultural dimensions. These characteristics enable Caos Dahar to contribute to the social, economic, and cultural aspects of sustainability within tourism. The study concludes that cultural traditions can be viewed as intangible strategic resources when properly managed. This research expands management and tourism studies by offering a management-oriented interpretation of cultural traditions and moving beyond outcome-based sustainability perspectives toward process-oriented cultural tradition management.

This study examines the utilization of Aloe vera as a herbal medicine by the community of Sobawagoli Village, Indonesia. The research aims to document local knowledge related to the processing, application, and perceived benefits of Aloe vera in traditional healthcare practices. A qualitative descriptive approach with a case study design was employed. Data were collected through direct field observations, in-depth interviews with community members, and documentation of preparation methods. The findings reveal that Aloe vera is widely used for both internal and external treatments, including digestive disorders, internal heat, hypertension, burns, skin inflammation, and natural skin and hair care. The plant is processed through simple methods such as boiling, blending, and direct topical application, reflecting the accessibility and practicality of herbal medicine in rural settings. Community perceptions toward Aloe vera are highly positive, viewing it as a safe, effective, and culturally embedded alternative to chemical medicines. These practices are supported by empirical experiences and align with recent scientific studies highlighting the therapeutic properties of Aloe vera. The study underscores the importance of preserving indigenous herbal knowledge and integrating it with modern health education to promote sustainable, community-based healthcare systems.

This study analyzes the impact of learning motivation levels on student attendance discipline at the Saint Ignasius Catholic Vocational School in Wairterang. The background of the problem highlights the low level of student attendance, which is caused by the lack of intrinsic and extrinsic motivation in the vocational education environment. This phenomenon impacts the effectiveness of learning and overall student achievement. The purpose of the study is to identify the causal relationship between learning motivation and attendance discipline, and to measure the significant influence of motivation variables on attendance discipline. The approach used is quantitative with a Likert-scale questionnaire survey method. The study sample involved students in grades X-XII at the Saint Ignasius Catholic Vocational School in Wairterang, with data analysis using simple linear regression to test the hypothesis. The results of the study are expected to show a positive and significant influence of learning motivation on attendance discipline. Practical implications include recommended strategies for guidance and counseling (BK) teachers, such as individual counseling programs, attendance-based reward systems, and the integration of intrinsic motivation through vocational extracurricular activities. These strategies are expected to improve learning effectiveness and build students' disciplined character in vocational high schools

This study analyzes the impact of learning motivation levels on student attendance discipline at the Saint Ignasius Catholic Vocational School in Wairterang. The background of the problem highlights the low level of student attendance, which is caused by the lack of intrinsic and extrinsic motivation in the vocational education environment. This phenomenon impacts the effectiveness of learning and overall student achievement. The purpose of the study is to identify the causal relationship between learning motivation and attendance discipline, and to measure the significant influence of motivation variables on attendance discipline. The approach used is quantitative with a Likert-scale questionnaire survey method. The study sample involved students in grades X-XII at the Saint Ignasius Catholic Vocational School in Wairterang, with data analysis using simple linear regression to test the hypothesis. The results of the study are expected to show a positive and significant influence of learning motivation on attendance discipline. Practical implications include recommended strategies for guidance and counseling (BK) teachers, such as individual counseling programs, attendance-based reward systems, and the integration of intrinsic motivation through vocational extracurricular activities. These strategies are expected to improve learning effectiveness and build students' disciplined character in vocational high schools

Technology-based information systems play an important role in financial management to enhance transparency. Financial transparency is a crucial factor for the sustainability of financial institutions and for building members’ trust. This study aims to analyze the implementation of a technology-based information system in financial management to improve transparency at the Credit Union Savings and Loan Cooperative Bahtera Sejahtera. This research employed a descriptive qualitative approach with data collection techniques including observation, interviews, and documentation. The results indicate that financial management at Credit Union Bahtera Sejahtera has been conducted online using the ESCETE application. Through this application, members are able to independently access financial data, while the financial reporting process is carried out transparently and can be accounted for. Furthermore, financial management is implemented through several stages, including planning and budgeting, recording and processing financial transactions, internal control, reporting and accountability, as well as the application of financial governance and compliance. The implementation of a technology-based information system has proven to enhance transparency, strengthen accountability, and support increased member trust in cooperative management.

The rapid development of digital technology has led to an increased adoption of digital payment methods in online transaction-based businesses. However, in practice, failures and limitations in the implementation of digital payment systems still occur, potentially disrupting transaction processes and reducing customer convenience. Payment related obstacles may result in transaction cancellations and increase the risk of customer churn. This study aims to analyze the impact of failures and limitations in digital payment methods on customer churn using a classification-based approach. The data used in this research are secondary e-commerce customer data obtained from the Kaggle platform, including transaction information, payment methods, customer behavior, and historical transaction records. The research methodology consists of data preprocessing, time-based feature engineering, and classification modeling using logistic regression, decision tree, and random forest algorithms. Model performance is evaluated using accuracy, precision, recall, F1-score, and confusion matrix metrics. The results indicate that the decision tree model demonstrates superior capability in identifying churn customers compared to the other models, although it does not always achieve the highest accuracy. In addition to digital payment methods, other factors such as purchase value, transaction frequency, purchase timing patterns, and product return rates also influence customer churn. The findings highlight the importance of optimizing digital payment systems as part of customer experience enhancement strategies and customer retention efforts in online transaction–based businesses.

The mental health crisis in Indonesia is increasingly alarming, exacerbated by the COVID-19 pandemic, social stigma, and unequal access to professional services. A clinical approach alone is not enough to address this complex problem. This study offers a novelty in the form of an integrative approach: revitalizing the role of families and communities based on Islamic values (rahmah, ta'awun, shabr, syura, tarbiyah ruhiyah) combined with the use of digital social communities as a medium for education, discussion, and support systems. The research method used is a literature study with a descriptive qualitative approach, reviewing national and international literature, social support theory (Cohen & Wills, 1985), religious coping (Koenig, 2012), and Bronfenbrenner's ecological theory (1979). The results of the study show that families play a strategic role in the prevention, assistance, and referral of mental health cases, while digital communities are effective as spaces for education and emotional validation, with scalability and anonymity as their main strengths. Concrete strategies offered include family education, stigma-free campaigns on social media, spiritual care hotlines, and cross-sector collaboration. This approach is in line with the collectivist culture of Indonesian Muslim society and is more adaptive in the digital era. This research is expected to serve as a conceptual foundation for practical programs, public policy, and further research to create a more caring, stigma-free, and resilient society in the face of mental health crises.

Effective information system design requires a clear and comprehensive understanding of the desired ideal system conditions in order to support organizational objectives. The TO-BE approach is a business process modeling method that describes future system conditions as a conceptual and strategic basis for improving existing AS-IS conditions. This study aims to analyze the effect of implementing the TO-BE approach in information system design on the clarity of system requirements, overall process efficiency, and the quality of system design outcomes. The research method used is descriptive-analytical research with a qualitative approach, employing data collection techniques such as literature review, direct observation, and in-depth analysis of system design documents. The results show that implementing the TO-BE approach in information system design provides a more structured and systematic overview of business processes, minimizes mismatches between system functionality and user needs, and improves the effectiveness and efficiency of business processes. Furthermore, the TO-BE approach assists system developers and analysts in designing system solutions that are aligned with organizational goals, operational requirements, and user expectations. Thus, implementing the TO-BE approach positively impacts the overall quality of information system design and is recommended as a critical and essential step in information system development initiatives.

This study aims to analyze the application of personnel management information systems at the West Sumba Regency Personnel and Human Resources Development Agency (BKPSDM). The main focus of the research is to assess how an integrated information system is able to produce up-to-date, accurate, and can support the decision-making process in personnel policy. An integrated information system is expected to facilitate employee data management, improve administrative efficiency, and strengthen transparency in human resource management. The research method uses a qualitative approach with case studies, through interviews with relevant officials, direct observation, and analysis of relevant documents. The results of the study show that the implementation of an integrated personnel management information system has a positive impact in the form of accelerating administrative processes, reducing data input errors, and facilitating access to information for interested parties. However, the research also found a number of challenges, such as the limitation of human resources trained in the use of technology systems and infrastructure that is not yet optimal. This study concludes that strengthening human resource capacity and increasing infrastructure support is a strategic step to optimize the personnel management information system. The research recommendations are expected to be a reference for the West Sumba Regency BKPSDM and other government agencies in developing a more effective and sustainable information system.

Information technology (IT) infrastructure planning plays a strategic role in supporting organizational performance and achieving business objectives. However, many organizations experience misalignment between IT infrastructure planning and organizational needs, leading to inefficiencies, limited system integration, and suboptimal utilization of IT investments (Maulana, 2024; Njanka et al., 2025). This study aims to analyze the suitability of IT infrastructure planning with organizational needs using a quantitative approach. The research framework integrates the Strategic Alignment Model (SAM), Strategic Alignment Maturity Model (SAMM), and COBIT 2019 governance principles. Data were collected through a structured questionnaire distributed to IT managers and system users. A total of 85 valid responses were analyzed using descriptive statistics and gap analysis. The results indicate that IT infrastructure planning is moderately aligned with organizational needs, particularly in supporting operational activities. Nevertheless, significant gaps were identified in system integration, scalability, and long-term infrastructure planning. These findings highlight the importance of continuous evaluation and governance-based IT planning to enhance alignment and ensure sustainable organizational performance.

This study aims to analyze the implementation of human resource management (HRM) audits in motivating employee performance at CV Cipta Alignment Constructions (CV.CLC). HRM audits serve as an evaluative and strategic tool in assessing the effectiveness of personnel functions such as recruitment, training, career development, and reward systems. The study used a qualitative approach with a case study method through interviews, observation, and documentation. The results show that HRM audits have a positive effect on employee motivation and performance by increasing work morale, placing employees according to competencies, and reducing turnover. Based on Resource-Based Theory (Barney, 1991), HRM audits are valuable and difficult-to-imitate strategic resources, thus supporting a company's competitive advantage. These findings emphasize the importance of implementing HRM audits continuously as part of a management strategy to improve organizational effectiveness. The implications of this study provide recommendations for companies to integrate HRM audits into strategic planning to achieve optimal and sustainable performance. In addition, this study also opens opportunities for further studies to strengthen the implementation of HRM audits in different sectors and company scales.

This research evaluates the effectiveness of human capital development policies in Indonesia within the education and health sectors during the periods of 2015–2019 and 2020–2024. The analysis focuses on strategic programs implemented by the Ministry of Education and Culture and the Ministry of Health by comparing planned targets with the realization of performance indicators as stated in the Strategic Plan (Renstra) documents. The study employs a qualitative evaluative approach supported by descriptive quantitative data derived from official planning and performance reports. The findings indicate that during the 2015–2019 period, programs emphasizing the expansion of basic education and health services were relatively effective in increasing participation rates and improving equitable access. In contrast, programs aimed at enhancing the quality of human resources, particularly teacher development and institutional capacity building, showed lower levels of effectiveness due to weak performance measurement systems and inconsistent data reporting. During the 2020–2024 period, the effectiveness of most education and health programs declined significantly as a result of external shocks caused by the COVID-19 pandemic. However, health programs with strong financial protection mechanisms, such as the National Health Insurance (JKN), demonstrated greater resilience compared to other programs. The study concludes that the effectiveness of human capital development policies is strongly influenced by the clarity of performance indicators, consistency in program implementation, institutional capacity, and the ability of policies to adapt to external disruptions.

The use of radiation-based medical equipment such as CT Scan poses potential risks of radiation leakage that may endanger patients, medical personnel, and the surrounding environment if not properly managed. This study aims to analyze radiation safety policies in anticipating radiation leakage in the CT Scan unit of Royal Prima General Hospital Medan, covering policy frameworks, physical protection measures, implementation challenges, and supervision and evaluation systems. This research employed a qualitative approach with a case study design. Data were collected through in-depth interviews, observations, and document reviews related to radiation safety policies. The results indicate that radiation safety policies at Royal Prima General Hospital Medan have referred to BAPETEN regulations and international standards, particularly in the structural protection of the CT Scan room, which has been proven effective in maintaining radiation exposure levels below the permissible limits. However, policy implementation still faces several obstacles, including budget limitations, non-compliance of some medical staff with the use of personal protective equipment, and suboptimal discipline in adhering to standard operating procedures. Supervision and evaluation have been conducted internally by certified Radiation Protection Officers and externally through periodic inspections by BAPETEN, yet further strengthening is required in terms of staff behavior and safety culture. In conclusion, radiation safety policies have been technically effective, but continuous improvement in compliance, supervision, and safety culture among medical personnel is essential to sustainably minimize the risk of radiation leakage.

Industrial visits are widely recognized as an experiential learning approach that bridges the gap between theoretical knowledge and real industrial practices in engineering education. This study aims to examine the relationship between industrial visits and the improvement of production system understanding and critical thinking skills among students of the Faculty of Industrial Technology at Universitas Nahdlatul Ulama Al-Ghazali (UNUGHA) Cilacap. A quantitative approach with a one-group pretest–posttest design was employed. The participants consisted of 43 industrial engineering students who took part in industrial visits to PT Dirgantara Indonesia and the National Research and Innovation Agency (BRIN) in Bandung. Data were collected using Likert-scale questionnaires and analyzed through Paired Sample t-Test. The results reveal a significant increase in students’ understanding of production systems, with mean scores rising from 64.23 (pretest) to 81.47 (posttest) (p < 0.05). Similarly, critical thinking skills showed a significant improvement, increasing from a mean score of 63.05 to 83.12 (p < 0.05). These findings demonstrate that industrial visits have a substantial positive impact on enhancing students’ academic competencies. This study highlights the importance of systematically integrating industrial visits into the industrial engineering curriculum to strengthen learning outcomes and improve graduates’ readiness for industrial challenges.

The digitalization of payment systems constitutes an integral part of economic digital transformation, driving a shift in transactions from cash-based to technology-based cashless payments. In Indonesia, this digitalization is manifested through the development of the Quick Response Code Indonesian Standard (QRIS) by Bank Indonesia as a national standard for QR code–based payments. Along with its development, QRIS has not only been used in domestic transactions but has also been implemented in cross-border transactions through intercountry payment system cooperation, particularly within the ASEAN region. However, the rapid expansion of QRIS has not been accompanied by comprehensive and structured legal regulation. This study aims to analyze the structure and hierarchy of QRIS regulation within Indonesia’s payment system as well as the forms of legal protection for consumers in cross-border QRIS transactions. The research employs a normative juridical method using statutory, historical, and conceptual approaches. The findings indicate that QRIS does not yet have a Bank Indonesia Regulation as a primary regulatory framework and is regulated solely through a Regulation of Members of the Board of Governors, which hierarchically functions as an implementing regulation. Consequently, QRIS regulation refers to several different Bank Indonesia Regulations, resulting in regulatory fragmentation. This condition has implications for legal uncertainty and the suboptimal legal protection of consumers in cross-border QRIS transactions.

This study aims to assess the quality of patient care at the Emergency Unit of Sentani City Community Health Center, Jayapura Regency, by examining the experiences and perceptions of patients, their families, and healthcare workers regarding the service. The study used a qualitative approach with a descriptive design. Informants were selected using purposive sampling involving ER patients, their families, and healthcare workers involved in the ER service process at Sentani Community Health Center. Data were collected through in-depth interviews, non-participatory observation, and documentation studies. The data obtained were analyzed qualitatively through the stages of data reduction, data presentation, and conclusion drawing. The research analysis refers to seven dimensions of service quality, namely direct evidence (tangibles), reliability, responsiveness, assurance, empathy, service accessibility, and service systems and flows. The results of the study showed that service quality at the Sentani Community Health Center ER was in the fairly good category, especially the dimensions of empathy, reliability, and responsiveness of healthcare workers. Healthcare workers were friendly, responsive, and provided fair services without discriminating against patient backgrounds. However, a number of obstacles are still found that affect the optimization of services, including limited facilities and infrastructure, the number of health workers that is not commensurate with the service load, patient waiting times in certain conditions, the operating hours of the Emergency Room that are not yet 24 hours, and the low understanding of some patients regarding the applicable service system and flow.

Surveillance for diarrhea at the district level in Indonesia is still affected by the fragmented nature of the District Health Information System (DHIS) and Early Warning and Response System (EWARS), inconsistent reporting, patchy data interoperability, and the resulting public health delays. Although there are systems in place like the DHIS and EWARS, the persistent use of hybrid systems that combine manual and digital data entry, as well as the different skill levels of users, continues to produce issues of incompleteness, untimely reporting, and inaccurate data. The present study investigated the deficiencies in surveillance reporting of diarrhea cases, the surveillance data to determine the degree of integration and also investigated the health workers perceptions of the barriers to effective reporting. A mixed methods approach was adopted in this study where we investigated quantitatively the DHIS and routine diarrhea reports submitted for the entire year of 2023, and combined that with qualitative, in-depth interviews with the relevant surveillance officers, program managers, and district staff. The quantitative analysis indicated gaps in reporting about 55% in terms of completeness, and consistency of reporting and also significant differences were found between the manual register, DHIS, and EWARS whereby the integration of these systems was found to be low. The qualitative analysis pointed to the combination of disconnected workflows, limited cross-system interoperability, inadequate system training, excessive workloads, and weak organizational feedback, as the main barriers to effective reporting. The combination of these two datasets illustrates the fact that both system deficiencies and organizational factors are primary drivers of the reporting. Closing the gaps will require system level changes in the interoperability of reporting systems, simplified reporting workflows, training, reporting, and reporting feedback loops.

Japanese kale (Brassica oleracea) is a leafy vegetable with high nutritional and economic value and strong potential for development through intensive cultivation systems, including polybag-based cultivation. Fertilization is an important factor determining plant growth success. This study aimed to analyze differences in the effects of cattle-manure compost fertilizer and NPK Mutiara fertilizer on the vegetative growth of Japanese kale, as well as to evaluate their roles in maintaining growing media fertility. The research employed a quantitative experimental approach using a single-factor Completely Randomized Design (CRD), namely fertilizer type. Treatments consisted of cattle-manure compost fertilizer and NPK Mutiara fertilizer, each with twelve replications, resulting in twenty-four experimental units. Observed parameters included plant height, leaf width, and growing media pH. The results showed that NPK Mutiara fertilizer produced better plant height and leaf width than compost fertilizer, particularly during the vegetative phase. This advantage was associated with the rapid availability of macronutrients such as nitrogen, phosphorus, and potassium for plant uptake. Meanwhile, cattle-manure compost fertilizer contributed to stabilizing growing media pH and improving soil physical and biological conditions. pH values in both treatments remained within the optimal range and did not limit plant growth. Therefore, NPK Mutiara fertilizer is more effective for short-term vegetative growth enhancement, whereas compost fertilizer supports sustainable growing media fertility.