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This study aims to examine and analyze the effect of capital structure and fixed asset turnover on return on assets (ROA) at PT Argo Pantes Tbk during the period 2013–2022. The research employs a quantitative method with a statistical analysis approach, using secondary data obtained from the company’s financial statements. The data analysis techniques include classical assumption tests, namely normality, multicollinearity, heteroscedasticity, and autocorrelation tests, followed by multiple linear regression analysis. Hypothesis testing is conducted through the coefficient of determination, partial statistical testing (t-test), and simultaneous statistical testing (F-test). The results indicate that capital structure has a significant effect on return on assets. This is evidenced by a t-value of 2.986, which is greater than the t-table value of 2.36462, and a significance level of 0.020, which is lower than 0.05. These findings suggest that an optimal capital structure plays an important role in improving the company’s profitability performance. Therefore, capital structure management should be considered a strategic factor by management in enhancing financial efficiency and overall corporate performance.

This study aims to examine the effect of employee competence, behavioral control, and trust on employee performance at the Bojonegoro District Health Office with Organizational Citizenship Behavior (OCB) as an intervening variable. The background of this study is related to the importance of employee performance in achieving public service organizational goals, particularly in the health sector. This study uses an explanatory quantitative method with a Partial Least Squares Structural Equation Modeling (PLS-SEM) approach. The research sample consisted of 100 employees at the Bojonegoro District Health Office. The results of the analysis show that the influence of employee competence on employee performance is not significant, but employee competence has a significant influence on OCB. Behavioral control has a significant effect on employee performance, but its effect on OCB is not significant. Trust has a significant effect on OCB, but its direct effect on employee performance does not. OCB is proven to have a significant effect on employee performance. Therefore, OCB plays an important role as a mediator in improving employee performance. This study provides a theoretical contribution by clarifying the relationship between variables in the context of public service-based government organizations. In practical terms, the results of this study are expected to form the basis for recommendations to improve the quality of human resources and develop managerial strategies at the Bojonegoro District Health Office in order to support the effectiveness and efficiency of public services.

Engine performance is a critical parameter in automotive engineering as it directly affects power output, torque characteristics, and overall vehicle efficiency. One of the components that significantly influences engine performance is the exhaust system, which regulates exhaust gas flow and back pressure. This study aims to experimentally analyze the effect of replacing a standard exhaust system with an aftermarket exhaust system on the performance of a 2NR-VE engine. The research employed an experimental method using a comparative design with two testing conditions: a factory-standard exhaust system and an aftermarket exhaust system. Engine performance testing was conducted using a dynamometer (dyno test) to measure horsepower and torque across various engine speed ranges (RPM). Each testing condition was performed repeatedly, and the resulting data were averaged to reduce measurement errors and minimize the influence of operational fluctuations. The experimental results indicate that the aftermarket exhaust system significantly improves engine performance. The maximum power increased from 82.5 HP to 91.6 HP, while the maximum torque rose from 131.2 Nm to 154.4 Nm. These improvements suggest that the aftermarket exhaust configuration effectively reduces exhaust back pressure and enhances exhaust gas flow efficiency. Therefore, replacing the exhaust system can be considered an effective approach to improving engine performance, provided that the modification is technically appropriate and complies with applicable emission and noise regulations.

This study aims to determine the impact of Financial Technology (Fintech) and digital banking on the overall performance of conventional banking institutions in Indonesia. This research employs a qualitative approach using a comprehensive literature review as its primary method. Data analysis in this study was conducted through an extensive review of various sources, including books, peer-reviewed journal articles, research reports, official websites, newspapers, and magazines, to obtain a holistic understanding of the topic. The results of this study indicate that both Fintech and digital banking significantly affect the performance of conventional banks in Indonesia. Specifically, the effect of Fintech on conventional banking is reflected in a decrease in traditional banking profitability, because Fintech platforms provide alternative channels and competition in credit distribution and financial services. Meanwhile, the effect of digital banking on conventional banking includes improvements in operational efficiency, wider service accessibility for customers, and noticeable changes in customer behavior and expectations. These findings suggest that conventional banks must adapt strategically to remain competitive in the evolving financial ecosystem.

The development of digital technology has encouraged the government to modernize public services, including in the field of land affairs. Traditionally, land registration has been associated with long, complex procedures that are often prone to abuse of authority. To address these challenges, the Ministry of Agrarian Affairs and Spatial Planning/National Land Agency (ATR/BPN) has begun implementing a digital-based land registration system. However, its implementation raises an important question: is this digital system truly effective in improving the quality of services at the Land Office, or does it instead create new obstacles? This study aims to analyze the effectiveness of land registration digitalization, particularly in terms of accessibility, efficiency, transparency, and the challenges encountered during its implementation. The research employs an empirical juridical method with qualitative analysis. The juridical approach is used to examine the legal foundations of land registration digitalization, including Law No. 5 of 1960 on Basic Agrarian Principles, Government Regulation No. 24 of 1997 on Land Registration, and the Ministerial Regulation of ATR/BPN No. 1 of 2021 on Electronic Certificates. The empirical approach involves direct observation of service processes at the Land Office and interviews with employees and citizens utilizing digital services. The findings reveal that digitalization of land registration has generally improved the quality of services at the Land Office. Administrative processes have become faster, land data are stored more securely, and service transparency has increased, as the public can monitor the status of their registration online.

The development of information and communication technology in the digital era has increased access to and productivity of scholarly publications, while also creating challenges in managing academic literature and references. Final-year students, particularly those from non–Information Technology programs, often experience difficulties in organizing references systematically, maintaining citation consistency, and avoiding unintentional plagiarism. This article aims to describe the implementation and outcomes of a community service program that provided training on the use of Mendeley as a personal digital library for managing scholarly literature. The program was conducted over two days using a participatory and hands-on approach involving students from Universitas Tamansiswa in Padang. The training methods included conceptual lectures, live demonstrations, and practical sessions covering Mendeley installation, reference management, automatic citation, and bibliography generation. The results indicate improvements in participants’ understanding and skills in reference management, as well as increased awareness of academic integrity. Overall, the training proved effective in enhancing efficiency and writing quality in the preparation of theses or final projects.

Kopirates Maumere is a local micro, small, and medium enterprise (MSME) engaged in the processing and marketing of specialty coffee products from Sikka Regency. This study aims to analyze the management strategies implemented by the MSME based on interviews with the business owner. The research focuses on product strategy, marketing, operations, business development, and the challenges faced in running the MSME amid increasingly competitive market conditions. The research method employs a descriptive qualitative approach through in-depth interviews and direct observation. The results indicate that Kopirates Maumere applies a product differentiation strategy by highlighting the quality of local coffee, supported by increasingly developed digital marketing. The MSME also strives for operational efficiency despite facing challenges related to limited capital and production equipment. This study concludes that adaptive management strategies based on local potential are crucial for maintaining MSME sustainability. Furthermore, improved managerial capacity along with support from the government and local communities is needed to strengthen the MSME’s position in a broader market.

This study aims to examine the relationship between occupational nutrition and employee productivity through a systematic literature review. The background of this research lies in the increasing attention to workplace health and the growing evidence that nutritional status can influence physical performance, cognitive function, and work outcomes. A total of 74 articles were initially identified from databases such as PubMed, ScienceDirect, Google Scholar, and Garuda, of which 12 met the inclusion criteria and were analyzed further. The findings indicate that adequate intake of macronutrients and micronutrients—particularly iron, protein, and B vitamins—correlates positively with productivity levels. Interventions such as nutritional education, iron supplementation, and structured meal programs at the workplace showed measurable effects in reducing absenteeism and fatigue while improving concentration and efficiency. The study concludes that occupational nutrition plays a vital role in supporting workforce performance and suggests its integration into workplace health policies. Theoretical and practical implications are discussed, along with recommendations for future research

This research aims to test and analyze the influence of tax administration modernization, tax knowledge, tax socialization, and tax sanctions on the compliance of individual taxpayers registered at the Primary Tax Office (KPP Pratama) Atambua. This study is a quantitative research employing a descriptive approach method. The data collection technique used in this research involves distributing questionnaires via Google Form. The sampling method applied is random sampling, with a sample size of 100 individual taxpayers. The analysis method utilized is multiple linear regression analysis. The research results indicate that all four independent variables have a positive and significant influence on individual taxpayer compliance (WPOP), both partially and simultaneously. Modernization enhances compliance through the efficiency of electronic systems such as e-Filing. Knowledge strengthens reporting accuracy with a better understanding of procedures. Socialization builds motivation through easily accessible information via digital and print media. Sanctions create a deterrent effect through awareness of fines and penalties.

Changes in intergovernmental fiscal transfer policies and the increasing emphasis on spending efficiency in Indonesia have encouraged regional governments to strengthen fiscal independence through the optimization of locally generated revenues, particularly local taxes. This study aims to evaluate local tax performance as a strategic instrument for supporting regional fiscal autonomy and fiscal resilience under fiscal decentralization. The analysis focuses on regional governments in Lampung Province during Fiscal Years 2019–2023. Using a descriptive quantitative research design, this study employs secondary data obtained from audited regional financial reports. The analytical framework applies a value for money approach to assess local tax effectiveness, complemented by growth ratio analysis to examine revenue dynamics over time. The findings indicate that local tax performance varies considerably across regions, revenue growth remains volatile, and fiscal resilience is more likely to emerge in regions where effectiveness and growth are relatively balanced. Overall, the results suggest that strengthening fiscal autonomy requires not only achieving revenue targets but also ensuring stable and sustainable local tax performance.

This study aims to describe in depth the professional management system of zakat, infaq, and shadaqah (ZIS) and hajj/umrah, which is the most effective form of da'wah bil hal in the modern era to rebuild the trust of the people gained from sharia values, namely transparency, accountability, and efficiency in managing public funds. Using a descriptive qualitative approach, data was collected through literature study. The results show that modern ZIS institutions not only distribute aid (charity) but also build an ecosystem of economic justice (social justice), which is the essence of substantive Islamic da'wah. The development of Hajj/Umrah management is also a form of da'wah bil hal that is in progress but is not yet fully effective. Therefore, this improvement is not merely an administrative improvement, but the grounding of Islamic values that are rahmatan lil 'alamin through structured, accountable, and impactful social work.

This study analyzes multi-stakeholder collaboration in innovation-based regional development planning at the Regional Development Planning Agency (Bappeda) of Sidoarjo Regency, emphasizing institutional mechanisms, data integration and digital innovation, joint financing schemes, and actor capacity and participation dynamics. The research focuses on the need to improve the effectiveness of development planning through planned, participatory, and data-driven intersectoral collaboration. Applying a qualitative case study approach, information was collected through in-depth interviews, participant observation, and analysis of planning documents. It was then analyzed using data reduction, thematic grouping, and source triangulation techniques. The research findings indicate that institutional synergy has been realized through formal forums such as development planning meetings and group discussions. However, coordination remains suboptimal due to overlapping roles between regional government agencies and the lack of a sustainable collaborative mechanism. Digital data integration still faces challenges due to limited platform content and user technical capabilities, resulting in data utilization not fully supporting evidence-based decisions. In terms of financing, collaborative schemes have begun to be implemented but are inconsistent, particularly in combining funding sources from various sectors. The capabilities of actors show striking differences, which impact the quality of public engagement and the efficiency of facilitating the planning process. Overall, these results confirm that the effectiveness of innovative planning is largely determined by the integration of digital systems, strengthening collaboration between stakeholders, and enhancing institutional capacity. This study suggests designing a more organized, interactive, and long-term multi-actor synergy model.

Business ventures are activities carried out by individuals or organizations involving the production, sale, purchase, or exchange of goods and services, with the aim of generating profit. A basic necessities store (commonly known as a “sembako” store in Indonesia) sells daily staple needs, especially the nine essential commodities (sembako), which include items such as rice, sugar, cooking oil, eggs, salt, and other key food ingredients. UD. Putri 2, located in Dusun 1A, Sumber Harapan Village (21261), Tinggi Raja Subdistrict, Asahan Regency, was established in 2018 and has since become an essential part of the local community. This has required UD. Putri 2 to constantly monitor their stock inventory. However, the company still faces inefficiencies in managing sales data processing, which often leads to inventory shortages. When the supply of goods is insufficient to meet customer demand, customers may turn to other stores. If this occurs repeatedly, the store risks losing profit due to the unavailability of goods. Supply Chain Management (SCM) refers to the integrated processes and production activities starting from the acquisition of raw materials from suppliers, the value-adding processes that turn raw materials into finished products, the inventory storage process, and the distribution of finished goods to retailers and consumers. The implementation of SCM can optimize inventory management of staple goods, minimize inventory costs, and improve supply chain efficiency at UD. Putri 2.

This study aims to evaluate the actual sump capacity in accommodating mine water discharge, design a sump that fits field conditions, and determine the optimal pump capacity and system at PT Satria Alam Manunggal, Telen Orbit Prima Site. The research methods include field data collection (sump condition, water discharge, and pump capacity) and supporting data (rainfall, geological maps, and pump specifications). The design rainfall was calculated using the Gumbel method with a five-year return period, while water discharge was estimated from runoff, rainfall, and groundwater inflow. The results indicate that the existing sump, with a capacity of 508 m³, is insufficient to accommodate an inflow of 1.210 m³/s. Therefore, two new sumps were designed: the West Sump with a capacity of 38,400 m³ and the East Sump with 78,281 m³. Each sump employs a DnD 150-4H pump with a discharge rate of 480 m³/hour. The West Sump pump can drain water within approximately three days, while the East Sump requires about seven days. The trapezoidal sump design was chosen for its efficiency, structural stability, and effectiveness in sediment (TSS) deposition control, maintaining levels within safe limits. In conclusion, the design of the West and East sumps is considered optimal in accommodating mine water discharge and improving the overall effectiveness of the mine drainage system.

Energy efficiency in water heaters is a crucial factor in ship operational environments due to limited electricity resources that rely on generators. This study aims to design and build an IoT-based water heater monitoring system with an innovative heat storage medium in the form of a mixture of silica sand and paraffin wax to improve thermal efficiency. Although previous studies have developed temperature monitoring and control systems in IoT-based water heaters, this study specifically fills this gap by analyzing the performance of adding silica sand to overcome the low thermal conductivity of paraffin wax. Using the Research and Development (R&D) method, this system was built with an ESP32 microcontroller as the control center, a DS18B20 temperature sensor for accurate measurements, and the Blynk and Google Sheets platforms for real-time monitoring and data recording. Performance testing was conducted by comparing the water heating rate between pure paraffin wax media and the mixed media. The results showed that the monitoring system functioned reliably, and the main finding proved that the addition of silica sand to paraffin wax significantly increased heating efficiency. This was clearly seen from the reduction in time required to raise the water temperature to 40°C, from 2.5 hours to only 1 hour in the second heating cycle. The results of this study indicate that the integration of silica sand and paraffin wax media with IoT technology can increase the efficiency of water heaters and provide an innovative solution for energy-efficient and environmentally friendly temperature control.

The integration of the Internet of Things (IoT) into the Web of Things (WoT) offers cross-platform interoperability but presents significant security challenges for constrained devices. This study aims to evaluate the effectiveness and efficiency of security mechanisms in three major WoT protocols: HTTP, CoAP, and MQTT. The research methodology employs a Systematic Literature Review (SLR) following PRISMA guidelines, reviewing 22 selected articles published between 2020 and 2025. The analysis utilizes PICOC criteria to compare communication overhead, computational consumption, and security mechanisms such as DTLS, OSCORE, and TLS integration. The results indicate that CoAP, combined with OSCORE and EDHOC mechanisms, provides the optimal balance between energy efficiency and end-to-end security for resource-constrained devices. MQTT demonstrates superiority in throughput and data transmission speed but requires additional security layers to ensure data confidentiality. Meanwhile, HTTP dominates in terms of Web service integration and access control, despite having the highest overhead burden. In conclusion, no single protocol is superior for all scenarios; the choice of protocol in WoT architecture must be based on the trade-offs between latency, resource efficiency, and system security requirements

Business is an economic activity carried out by individuals or organizations to produce and sell goods or services with the aim of making a profit. The NSH Group Store is a business that sells carpets, pillows, bolsters, and dolls located in the Sei Dadap I/II Plantation, Sei Dadap District, Asahan Regency, North Sumatra 21225. The NSH Group Store was established in 2016 and is owned by Mrs. Siti Komariah Siregar. Among the challenges faced by the NSH Group Store owner are irregular stock procurement. Sales transaction processes still use conventional methods, reducing efficiency and time effectiveness, and potentially leading to data errors. Supply Chain Management is a series of approaches used to efficiently integrate suppliers so that goods can be distributed in the right quantities, locations, and at the right time, with the aim of minimizing overall system costs. A bolster pillow is a pillow that can function as both a pillow and a bolster. Bolster pillows are oval and long, so they can be hugged while sleeping. The benefits of a bolster pillow include maintaining a proper sleeping position, reducing pressure on joints, helping reduce aches, improving sleep quality, and improving overall health. Therefore, by implementing Supply Chain Management (SCM), data processing will be faster and more accurate.

The principle of sustainability is the main foundation in the development of a coastal resort in Mangrove Beach, Serdang Bedagai, which has high tourism potential but lacks environmentally friendly facilities. This study uses a sustainable architectural design method based on Biophilic design, which emphasizes human connection with nature through adaptive design and harmony with the environment. The implementation of this concept is realized through the use of locally sourced low- carbon materials, cross-ventilation, and natural lighting for energy efficiency, integration of vegetation as both aesthetic and ecological elements, environmentally friendly rainwater and waste management, and site planning that respects the coastal ecosystem. The design outcome is a resort with an organic form inspired by shells and ocean waves, creating an architectural identity that harmonizes with the area's character, providing a comfortable tourist experience for visitors, and contributing to local economic growth and environmental conservation, thereby serving as a concrete example of sustainable coastal tourism development in North Sumatra.

Mining sequence design is one of the important stages in open pit mining activities that aims to organize the excavation stages so that production activities run effectively, efficiently, and in accordance with the established targets. This research was conducted at PT Putra Perkasa Abadi Site SKS with the aim of designing a mining sequence in January and February 2025. The methods used include analysis of topographic data, geology, pit design, and monthly production targets. The data was processed using mining software to determine the excavation sequence based on elevation, overburden volume, and coal reserves. The design results show that the total planned overburden and coal volume is able to meet the company's production targets by considering slope stability and the efficiency of digging and loading equipment. In addition, the resulting sequence design also takes into account aspects of work safety and field operational conditions, such as mine road access and drainage systems. With a structured design, it is expected that mining activities during this period can run according to schedule, minimize operational obstacles, and support the achievement of production targets and cost efficiency at PT Putra Perkasa Abadi Site SKS.

This study addresses the urgent need for digital transformation at Percetakan Rajawali, a printing company currently reliant on manual order processes, which leads to service delays, recording errors, and lack of transparency. The research aims to design and implement a web-based online ordering information system to facilitate customer orders, accelerate confirmation and order tracking, and improve the efficiency of order data management. Adopting the linear and sequential Waterfall methodology, the study progressed through stages of system analysis, design, coding, testing, and maintenance. The key findings include the successful design of a comprehensive system featuring product catalogs, an online ordering module with real-time cost calculation, integrated payment management, and an admin dashboard for order processing. The system is designed with user-centered and secure principles, expected to significantly enhance operational efficiency, service speed, and customer satisfaction by providing an integrated, transparent, and accessible online ordering platform.