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Public Green Open Space (RTH) is an essential element in urban spatial planning to support environmental sustainability. Through the process of photosynthesis, RTH helps absorb carbon dioxide (CO₂) produced by human activities, such as transportation and industry, thus contributing to climate change mitigation. This study aims to explore the role of RTH in absorbing CO₂ and the challenges faced in its management. The study was conducted using a systematic approach through literature analysis and case studies in several cities in Indonesia and around the world. The research results indicate that vegetation type, area size, and environmental conditions are the main factors affecting the carbon absorption capacity of RTH. Large trees have a significantly higher capacity to absorb CO₂ compared to shrubs and grass, with the ability to absorb up to 250.63 tons of CO₂ per year per tree. However, challenges such as limited RTH area, urbanization pressure, and lack of public awareness remain obstacles to optimal RTH management. The recommendations of this study include increasing the area and quality of RTH through data-based strategies, community participation in management, and the development of policies that support sustainability. With proper management, RTH can function as a climate change mitigation tool while improving the quality of life for urban communities.  

Every information related to accounting is handled by the Accounting Information System. (AIS). The purpose of this study was to assess whether the accounting information system at the UPTD Hiliweto Gido Health Center has been implemented successfully and efficiently, and to examine the function of the system in inpatient services. The research methodology of this study uses an exploratory qualitative approach, specifically by using the Google Scholar internet database to obtain secondary data from national papers and conducting focused interviews. The results of this study are that the installation of the accounting information system at the Hiliweto Gido Health Center has been successful based on research findings. This study examines how a more integrated and real-time accounting information system can improve the efficiency of inpatient services at the Health Center, especially in resource management and financing.

In the digital business environment, web-based Point of Sale (POS) systems play a vital role in supporting transaction processing, inventory management, and operational decision-making. Ensuring the functional reliability of such systems is essential, particularly in critical authentication features that regulate user access. However, undetected functional errors within login and registration modules may disrupt operations, compromise data integrity, and reduce user experience quality. Therefore, this study aims to evaluate the functionality of the Wingpos website, focusing specifically on the login and registration features. The research applies the Black Box Testing approach using the Equivalence Partitioning technique, which enables systematic functional validation by classifying input data into representative valid and invalid partitions without requiring access to source code. The testing process involved designing structured test cases, executing input scenarios, and comparing actual system outputs with expected results. The findings reveal that most authentication processes function in accordance with system specifications, as seven out of ten test scenarios produced expected outcomes. Nevertheless, three discrepancies were identified, including inconsistent error message validation in the login feature and the system’s inability to properly verify invalid email domains during registration. These results indicate that while the system demonstrates general functional reliability, certain validation mechanisms require refinement. In conclusion, the application of Black Box Testing with the Equivalence Partitioning technique proves effective in identifying functional gaps and supporting quality assurance processes in web-based POS systems, particularly in strengthening authentication feature reliability and improving overall system performance

Cost Recovery is a vital element in production sharing contracts (PSCs) within the oil and gas sector, allowing contractors to recover costs incurred during exploration and production through revenues generated from oil and gas production. This mechanism has a direct impact on the sustainability of operations and the management of natural resources, which in turn plays a critical role in supporting the national economy.This study aims to analyze the role and contribution of the cost recovery scheme in enhancing Indonesia's economic development, focusing on optimizing state revenue, increasing both foreign and domestic investment, and promoting the development of sustainable energy infrastructure. The method used in this study is a literature review, which includes data from journals and published articles.The main findings of the study show that the cost recovery scheme not only functions as an instrument to ensure the sustainability of upstream oil and gas operations but also has a significant impact on other economic aspects. In the context of national economic development, this scheme contributes to increasing state revenue through taxes and royalties, creating jobs, and supporting local economic development in oil and gas-producing regions. Moreover, cost recovery opens up opportunities for technology transfer and enhances human resource capacity in the energy sector.

Educational institutions play a vital role in shaping human resources and adapting to rapid changes. To address globalization and technological challenges, they must implement effective and sustainable reforms, with strategic leadership as a key driver. This study examines the role of strategic leadership in designing and implementing renewal models in educational institutions. It identifies factors influencing success and offers recommendations for effective practices. Strategic leadership is crucial in enhancing educational quality and system effectiveness. Leaders act as internal change agents, develop innovative strategies, and coordinate resources to achieve reform goals. Using library research methods, this study reviews literature, including books, journal articles, and research reports on strategic leadership and educational reform. Data analysis involves identifying themes, theories, and best practices. Findings reveal that strategic leaders function as visionaries, motivators, facilitators, and resource managers. Their effectiveness depends on clear strategy formulation, consensus-building, and resistance management. Support from stakeholders, effective communication, and community involvement are pivotal for successful reform implementation. This study emphasizes the importance of strategic leadership in fostering transformative changes within educational institutions.

Public service delivery in taxation is a vital function of government in fulfilling citizens' administrative rights, particularly through the issuance of the Taxpayer Identification Number (NPWP). The quality of this service directly influences taxpayer satisfaction, understanding, and trust in tax institutions. This study aims to analyze the quality of public service in NPWP issuance at the Primary Tax Office (KPP Pratama) of Dumai City and to identify supporting and inhibiting factors affecting service implementation. This research employed a descriptive qualitative approach. Data were collected through observations, in-depth interviews with tax officers and taxpayers, and documentation studies. Data analysis was conducted using an interactive model consisting of data reduction, data presentation, and conclusion drawing. The assessment of service quality was based on the SERVQUAL framework developed by Zeithaml and Parasuraman, encompassing five dimensions: tangibles, reliability, responsiveness, assurance, and empathy. The results show that NPWP issuance services at KPP Pratama Dumai City are generally well implemented. Adequate facilities, adherence to standard operating procedures, responsive officers, data security assurance, and courteous service attitudes support service quality. However, challenges remain, particularly related to limited waiting room capacity during peak periods, varying levels of taxpayer understanding, and the need for clearer procedural information. Continuous improvement in communication, service management, and capacity planning is required to enhance public service quality.

This study explores the potential of water hyacinth (Eichhornia crassipes) as a bioelectricity source through Plant-Microbial Fuel Cell (PMFC) technology. The research aimed to evaluate the ability of water hyacinth to generate stable electrical energy when integrated with electrodes in a controlled laboratory setting. The method applied was an experimental laboratory design, where water hyacinths were placed in containers filled with water, equipped with anode and cathode electrodes, and connected to a voltmeter and ammeter for continuous monitoring. Observations were carried out for 72 hours with periodic recording of voltage and current values. The findings show that water hyacinth can generate measurable electricity, with voltage ranging from 0.25 V to 0.32 V and current between 0.18 mA and 0.24 mA, indicating the potential of this plant to produce renewable energy. Moreover, the results reveal that the generated electricity was relatively stable during the observation period, though variations occurred due to environmental conditions. The implications of this research suggest that water hyacinth, often considered a weed, can be utilized not only for energy production but also as part of ecological management programs. This dual function makes PMFC technology a promising alternative for sustainable energy development, especially in rural or remote areas where access to conventional electricity remains limited.

This study discusses the importance of the presence of research and innovation management institutions that are increasingly recognized along with the needs of the Government and local governments to resolve problems, development gaps and find solutions to regional government problems. This can be interpreted that BRIDA is not only transformed into a manager of supporting functions in the field of research and development as before but its presence is required to be able to fundamentally change the governance of research and development and increase its connectivity with the innovation system and global competitiveness. In the perspective of regional government policy, it is required to be able to formulate quality and evidence-based policies. This study aims to analyze the role of the Regional Research and Innovation Agency in supporting the development process of the city of Medan and supporting the development of the city of Medan. The method used in this study is a qualitative descriptive method. Data collection techniques in the form of observation and documentation. Based on the results of the study, it was obtained that the Regional Research and Innovation Agency has a policy formulation and strategy that supports the vision of developing the city of Medan into an innovative and highly competitive city. Then the Regional Research and Innovation Agency has great potential to continue to be the main driver of sustainable and innovative city development.

This study focuses on black-box testing of JivaJoy software, an online product stock management and ordering system. The primary goal of this research is to evaluate the functionality and performance of the system's key features, including profile management, CRUD operations for admin and customer accounts, product stock management, shopping cart, order management, and AI counseling. Black-box testing was applied to assess whether these features meet expected operational standards and user requirements without considering the internal code structure. The test results indicate that most features function as expected. However, some issues were identified related to input validation, particularly with email format, phone number length, file uploads, and product stock management. Additionally, the order management and AI counseling features showed deficiencies in error handling and input validation. Based on these findings, the study recommends improvements in input validation, product stock management, shopping cart functionality, and AI counseling systems to enhance the reliability and performance of the JivaJoy platform. These enhancements are essential to deliver more efficient, secure, and optimal services, ensuring better user experiences and customer satisfaction.

The management of pharmaceutical supplies in the Pharmacy Installation of a hospital consists of nine aspects: selection, demand planning, procurement, acceptance, storage, distribution, destruction and withdrawal, control, and administration. This study aims to analyze the management of pharmaceutical supplies at a hospital in Medan in 2023 using a qualitative method through direct observation and in-depth interviews with both primary and secondary data. Interviews were conducted with nine informants, including key informants, main informants, and supporting informants. The results of the study indicate that, overall, the management of pharmaceutical supplies is functioning well but not yet optimal. Three aspects that have been well implemented are selection, destruction and withdrawal, and administration. Meanwhile, siSwasta di Kota Medan other aspects, such as planning, procurement, acceptance, storage, distribution, and control, have not been fully optimized. The issue of medication shortages can be addressed through collaboration with eSwasta di Kota Medanternal pharmacies. To improve management, it is recommended that the hospital enhance the storage facilities, which are currently inadequate, by providing appropriate pallets and involving all related parties to work together in improving the system, as well as conducting regular monitoring and evaluation.

Mekarbuana Village located in Tegalwaru, Karawang district, West Java, is about 45 kilometers from the center of Karawang, and has potential for agro-tourism and natural tourism, because according to the village head, Jaji Maryono, the village is a provider of coffee, durian, mango, avocado, and bananas. The tourism  that are available are Curug Cigentis, Curug Bandung, and tours along the flow of the river. This tourist destination is a favourite destination of both locals and citizens around Karawang to spend the weekend with the family. Due to the tourist potential in his village, the village chief acknowledged that he wanted to bring Mekarbuana Village  into a tourist village, but still needed support and enhanced human resource capacity (HRM) to manage the village. The problem is that the tourism organization in the village are not functioning, so the wheel of tourism in that village is still not balanced. This activity uses methods of accompaniment, socialization, and education carried out in integration with KKN students to the community and tourists in Mekarbuana Village. The result of this community service activity is the reactivation of the pokdarwis management, the existence of the organization structure, the presence of the work plan, a varied tour package, as well as the Mekarbuana Village  already registered in the JADESTA. As to the conclusion of the activities, they feel very grateful and hoped that the organization will be able to maximize its management, and continue to run consistently and professionally in managing tourism in the village.

Putra Andalas Samudera is a company that operates in the field of domestic and overseas agents, PT. Putra Andalas Samudera provides ship entry and exit licensing services, certificate extensions, and management of sign on and sign off seafarers' books. The data collection methods used by the author in writing this paper are the field observation method (field research) and the library research method. This paper aims to determine the process of managing the sign on/off book for ship crew sailors at PT. Putra Andalas Samudera, the process began after a direction from the owner that there would be a crew change activity, after that the process of signing on the crew's seaman's book went to the KSOP class 1 Dumai office. Signing on/off in the sailor's crew book is very important for a seafarer, apart from being a sign that the seafarer has legally joined the ship, it also adds to the seafarer's work experience. The problems faced in the process of signing on/off the crew sailor's book were the delay in information from the owner to sign on the crew's sailor's book which resulted in hampering the clearance process. Good cooperation and coordination between shipping companies and related agencies in signing on/off seafarers' books is very necessary for smooth service to crew document handlers. It is important to remember that the purpose of coordination is so that the relevant agencies can carry out their duties and functions smoothly, safely and efficiently.    

This research examines formation management at the Regional Staffing Agency of Central Kalimantan Province using a descriptive qualitative approach. The focus of the research includes the implementation of formation management, identification of the scope of routine activities, and development of optimization strategies. The results revealed that formation management has been implemented through various integrated aspects, including employee needs planning, formation preparation, staffing budget preparation, employee recruitment process, development and training, and performance evaluation. BKD Central Kalimantan Province has shown good performance in carrying out its duties and functions, focusing on developing employee competencies and increasing employee mobility as part of a quality formation strategy.

The results of the research show that 1) Islamic boarding school management planning in improving the competency of students, namely starting from the planning, implementation and management evaluation stages which started from the beginning of the year activities to the end of year activities, namely teacher work meeting activities which included all the elements in MBI Amanatul The ummah of functionary teachers, security guards, sweepers and so on are involved. 2) Implementation of Islamic Boarding Schools in improving the competency of santri, there are daily programs, various extracurricular and organizational activities are handled seriously so that many santri graduates become leaders at universities (such as the President of BEM, head of UKM) and there are reminders of the 7 keys to success that are always upheld. 3) Obstacles and solutions in improving the competency of students, namely the presence of teachers and asatidz, not all of whom live in Islamic boarding schools or in the surrounding area. The solution provided by the institution is the existence of adequate transportation facilities to pick up and pick up teachers and their Asatidz.

This research focuses on evaluating the Combox web application, a digital tool designed to help Food and Beverage (F&B) business owners strengthen their online presence. The analysis was carried out through Black Box Testing, specifically using the Equivalence Partitioning method, to assess core functionalities like login, logout, product management, and pagination. The findings reveal that while most features function as intended, there are issues with product addition and editing, as well as pagination when no data is available. These results highlight areas that need refinement to improve the application’s reliability and user experience. In summary, this research supports the advancement of a digital platform that enables F&B businesses to harness technology effectively in today’s competitive landscape.

In the world of education, teachers have a very large and important role in teaching and learning activities because teachers are educators who are directly in contact with students, so teachers are required to have good performance in order to teach students who also have good quality. One of the educational problems faced by the Indonesian nation is the quality of education at every level and education unit, especially elementary and secondary education. Various efforts have been made to improve the quality of education, including through various training and improving teacher qualifications, procuring books and teaching tools, improving facilities and infrastructure, and improving the quality of school management. The research method used in this study is quantitative through path analysis and SITOREM analysis. The results of this study are that there is a positive relationship between the independent variable and the dependent variable when viewed from the path analysis, then the relationship is a functional relationship where teacher performance (Y) is formed as a result of the functioning of organizational culture functions (X1), transformational leadership (X2), self-efficacy (X3) work motivation (X4)

The reliability of sterilization equipment, such as autoclaves, is essential to ensure patient safety, infection control, and operational continuity in healthcare facilities. Damage or malfunction of autoclaves may disrupt sterilization processes and pose significant risks to medical services. This study aims to develop an expert system for autoclave damage detection using the fuzzy logic method to support faster and more accurate diagnostic decision-making. The proposed system applies fuzzy inference to evaluate the level of damage based on input symptoms provided by users. By handling uncertainty and varying symptom intensities, the fuzzy logic approach enables proportional assessment rather than rigid rule-based classification. The system was designed through knowledge acquisition from technical experts and implemented using fuzzy membership functions and inference rules to determine damage severity levels. Experimental testing was conducted to evaluate system performance and diagnostic accuracy. The results indicate that the expert system successfully generated diagnosis outputs for all tested scenarios, achieving functional diagnostic accuracy within the defined test cases. The system was also able to calculate a quantified damage severity value of 11.6235981% based on the given symptoms, demonstrating its capability to assess damage levels numerically and objectively. Furthermore, the developed system significantly reduces the time required for damage detection compared to manual diagnostic procedures. Automating the evaluation process, it assists electromedical technicians in identifying faults more efficiently and taking preventive or corrective actions promptly. Overall, the implementation of a fuzzy logic-based expert system provides an effective, accurate, and practical solution for improving autoclave maintenance management and supporting healthcare service reliability.

The Community Service (PkM) activity titled “Utilization and Management of Web Profile Information System at SDK Santo Yosep 1 Kota Kupang” involved the partnership with SDK Santo Yosep 1 Kota Kupang. The purpose of this community partnership program was to enhance information technology skills and knowledge for educators and educational staff at SDK Santo Yosep 1 located in Kota Raja sub-district. The methods used in this activity included training on managing the system that had already been developed, specifically on data entry, which would later be published as school information for the general public. Additionally, a questionnaire method was employed to assess the system's effectiveness. The results of the training showed that all 16 participants, including teachers and staff, were able to effectively understand how to operate the system and enter data accurately. Furthermore, the system functioned well (valid) according to the partner’s needs, allowing the school's web profile information system to be published for the public, providing essential information about the school to the broader community.

This study examines the efforts of local food-based entrepreneurship training to start and develop BUMDesa Duawutun, Nagawutung, Lembata. This study is based on data from the 2021-2027 Duawutun RPJMDes, explaining the inhibiting factors for BUMDes management in Duawutun Village, namely the BUMDes management is not functioning properly, the lack of Human Resources (HR) for BUMDes management, and BUMDes still lacks funds, so that in 2023 the Duawutun Village Government will dissolve BUMDes Duawutun. The method used in this activity is socialization and practice with the aim of providing explanations and honing the skills of the Family Welfare Empowerment (PKK) mothers, BUMDes administrators, and the Duawutun Village community directly. This training activity produces several local products in the form of (cassava chips and pumpkin sticks). The main targets of this activity are BUMDes administrators and PKK mothers.

Fecal incontinence (IF) is the inability to control the release of feces, often occurring in the elderly due to decreased physiological function of the pelvic muscles. Assessment of the severity of fecal incontinence requires a valid instrument such as the Fecal Incontinence Severity Index (FISI), which is based on a score to classify IF conditions. This community service activity was carried out with 93 elderly participants who took part in the FISI examination and education in order to increase understanding of the severity of fecal incontinence and the importance of preventive measures through early detection. The education program was carried out using the PDCA (Plan-Do-Check-Act) method which provides information related to risks, preventive efforts, and healthy lifestyle-based management steps. The average FISI score shows variations in severity among participants, providing an objective picture of the condition of the elderly. FISI acts as an important evaluation tool for monitoring and education, helping the elderly and their families understand their condition and take preventive measures. FISI examination in this program improves the quality of life of the elderly through effective education and prevention strategies