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The increasing demand for electricity and high dependence on the utility power grid have driven the adoption of photovoltaic (PV) power generation as an environmentally friendly alternative energy source. This study aims to analyze the techno-economic feasibility of a load-sharing PV power generation system, focusing on technical analysis, operational costs, electricity bill savings, and environmental impacts. The research was conducted using quantitative methods to compare energy from photovoltaic generation and the grid, carbon emission calculations using an emission factor of 0,87 kgCO₂/kWh, and economic evaluation through parameters such as Net Present Value (NPV), Return on Investment (ROI), Cost of Energy (COE), and Payback Period (PP). The research results indicate that the photovoltaic panel generation system enables reducing utility grid energy consumption and reducing carbon emissions by 4,85 tons of CO₂ in 2024, increasing to 8,45 tons of CO₂ in 2025. The economic analysis indicates that the NPV value is not yet optimal; however, the ROI stands at 15%, the COE is Rp. 980.08/kWh, and the Payback Period is 6,56 years. The system is feasible for long-term investment. Overall, the implementation of the photovoltaic power plant demonstrates good potential in supporting carbon emission reduction, increasing the utilization of renewable energy, and reducing dependence on fossil-based energy.

Road improvement projects require consistency between technical planning documents and field implementation to ensure that service quality, structural performance, construction time, and user safety are achieved. This article evaluates the conformity between planning and realization in the Pangkalan-Batas Jambi road improvement project in Rawas Ulu District, North Musi Rawas Regency. The study used a descriptive-quantitative evaluative approach based on field monitoring, project technical documents, comparative quantity analysis between contract and Contract Change Order (CCO), and identification of implementation constraints. The results showed that several work items changed during construction because initial planning data did not fully capture actual field conditions. Quantities increased for drainage excavation (+18.87%), roadbed preparation (+8.99%), aggregate class A base course (+12.51%), and AC-Base (+11.98%). Conversely, reinforced pipe culverts decreased (-58.33%), unsealed aggregate base/sirtu decreased (-43.50%), and tack/prime coat volume slightly decreased (-0.47%). The time schedule showed a minor delay of -0.13% in the first week but recovered in the second week, indicating effective field coordination. Main constraints included traffic interference, limited worker visibility, and equipment visibility. The study recommends more detailed site surveys during planning, stronger traffic management, stricter occupational safety implementation, systematic progress control, and routine post-construction maintenance to maintain road service life.

Cracker pr machines are widely used in small and medium-scale food industries. However, limitations in frame design and motor speed control often result in suboptimal machine performance. This study aims to perform a redesign of the upper conveyor frame, analyze the structural strength of the frame, and evaluate the effect of using a Variable Speed Drive (VSD) inverter on improving the production capacity of a cracker printing machine.The research method includes frame redesign, load calculation, and numerical analysis using the Finite Element Method (FEM) with SolidWorks Simulation. The applied loads consist of machine component weights and operational loads. In addition, performance testing was conducted by varying the motor rotational speed controlled by the VSD inverter to determine its effect on production output.The results show that the redesigned frame has a maximum displacement of 0.18 mm, a maximum stress of 8.9 MPa, and a minimum safety factor of 31, indicating that the structure is safe and operates within the elastic region. The implementation of the VSD inverter successfully increased the machine’s production capacity from the initial condition up to 78.5 kg/h. Based on these results, it can be concluded that the frame redesign and the application of a VSD inverter are effective in improving the performance and reliability of the cracker printing machine.

This study analyzes how digital interface design (UI/UX) and system architecture are manipulated to unethically extract user consent, resulting in personal data commercialization and massive online loan (pinjol) spam marketing. Employing a mixed-methods approach, this research combines descriptive quantitative analysis of digital user perception surveys with qualitative observations involving UI teardowns, privacy policy evaluations, and extensive literature reviews. Initial findings indicate a profound crisis of genuine informed consent, exacerbated by the deployment of dark patterns such as pre-ticked checkboxes, disguised opt-out architectures, and information overload engineered into legal documents. This systematic manipulation facilitates unauthorized personal data distribution to third parties under the guise of legitimate agreement, directly triggering privacy intrusions and psychological distress, including severe anxiety among data subjects. Philosophically and morally, these practices constitute a severe breach of Information Technology Professional Ethics (EPTI). Consequently, this study highlights the urgent need for developer accountability and advocates for the implementation of proactive, transparent ethical design frameworks compliant with Human-Computer Interaction (HCI) standards to reclaim digital autonomy.

This study aims to implement the Cooperative Integrated Reading and Composition (CIRC) learning model to improve collaboration skills and learning outcomes among phase E students in class X-3 at SMA Katolik 2 Kabanjahe in Catholic Religious Education. This research employed Classroom Action Research conducted in two cycles, consisting of planning, implementation, observation, and reflection stages. Data were collected through observation sheets, learning outcome tests, and documentation, then analyzed using descriptive qualitative analysis supported by process and learning achievement indicators. The findings showed that the implementation of the CIRC learning model improved across learning stages, including orientation from 87% to 95%, organization from 90% to 97%, concept introduction from 87% to 92%, publication from 93% to 98%, and reflection and reinforcement from 87% to 98%. Students’ collaboration skills also increased in each indicator, namely working productively from 75% to 88%, actively participating in problem solving from 82% to 88%, maintaining a balance between listening and speaking from 76% to 86%, appreciating group members’ contributions from 73% to 87%, and demonstrating responsibility as group members from 77% to 93%. Learning outcomes also improved, as shown by the increase in the proficient category from 27% to 77%, while the basic and developing categories decreased to 0% in cycle II. These results indicate that CIRC effectively enhances students’ active participation, collaboration, responsibility, and learning achievement. Therefore, CIRC is recommended as an alternative collaborative learning model for Catholic Religious Education, particularly in strengthening cooperative interaction and meaningful understanding of religious learning materials in classroom practice.

This study aims to analyze the implementation of blended learning on the motivation and learning outcomes of fifth-grade students at UPTD SD Negeri Oli′O. This study employs a quantitative approach with a quasi-experimental design. The research subjects were fifth-grade students, comprising an experimental class using LMS-based blended learning and a control class using conventional learning. Data were collected through learning motivation questionnaires and learning outcome tests administered before and after the intervention. Data analysis was conducted using the Kolmogorov-Smirnov normality test, Levene’s homogeneity test, F-test ANOVA, and paired samples t-test. The results indicate that the implementation of the blended learning model has a positive effect on students’ motivation and learning outcomes. Students who participated in blended learning demonstrated better learning motivation compared to those in the conventional learning group. Additionally, student learning outcomes improved because learning materials could be flexibly accessed again via online platforms, thereby providing students with broader opportunities to understand the material independently.

This study aims to describe the process of implementing the Sympathy Mailbox media in writing expressions of concern by knowing the improvement in student learning outcomes and their responses. This study uses experimental research with a quantitative descriptive approach and a pretest-posttest control group design. The subjects involved were 64 seventh-grade students of SMP Negeri 47 Surabaya. Data collection included observation, tests, and questionnaires with data analyzed in the form of percentages, means, and t-tests. The results obtained showed that the learning process ran very well starting from the preparation stage in the form of providing two sympathy boxes, the implementation stage and the evaluation stage through the final test and response questionnaire. This can be proven by the percentage of student activity of 93.75% and educators 90%. The average student learning score increased in the pre-test from 75.12 to 84.37 with a gain value of 9.31. The t-test produced a t-count value of 9.23 which was higher than the t-table, this proved that there was a significant influence of the sympathy mailbox media on the ability to write expressions of concern. The students' response to the learning was very positive, so it can be concluded that the process of implementing the sympathy box media in learning was successful.

This study aims to examine the strategic role of teachers in instilling anti-corruption educational values in elementary school (SD/MI) students in the digital era. Employing a descriptive qualitative approach, data were collected through in-depth interviews with five SD/MI teachers in Karawang Regency conducted in May 2026. Findings reveal that all informants possess adequate conceptual understanding of anti-corruption education as a character-building process rather than mere knowledge transmission. Teachers perform three principal functions: as behavioral role models, value-based learning facilitators, and collaborative partners with families. Implemented strategies include exemplary conduct, habituation, cross-subject value integration, and utilization of digital media such as educational videos, animations, and interactive quizzes. However, implementation faces significant obstacles, including social media normalizing dishonest behavior, instant-gratification tendencies among students, and weak synergy between schools and family environments. This research affirms that successful internalization of anti-corruption values requires consistent teacher exemplarity, a conducive school ecosystem, robust digital literacy, and sustainable tri-center educational collaboration. Practical implications include the necessity of strengthening teachers' pedagogical competencies in designing character-based learning that is adaptive to the dynamics of the digital era.

The Merdeka Curriculum introduces a paradigm shift in Indonesia's educational assessment system, moving from an outcome-oriented approach toward one that positions evaluation as an integral part of the learning process itself. This article examines how learning evaluation is implemented as an instrument to improve the quality of student learning within the Merdeka Curriculum framework. This study employs a library research method, analyzing relevant policy documents, regulations, and academic literature. The findings indicate that the Merdeka Curriculum shifts the focus of evaluation from mere measurement (assessment of learning) toward assessment as learning and assessment for learning, realized through three main forms of assessment: diagnostic, formative, and summative. Proper implementation of these three forms enables teachers to map students' individual learning needs, provide continuous feedback, and design differentiated instruction that is more relevant to learners' characteristics. However, field implementation still faces several challenges, including uneven teacher understanding, time constraints, and limited technical training in designing authentic assessment instruments. This article recommends strengthening teacher competence, providing practical technical guidance, and offering continuous mentoring as strategic steps to ensure that learning evaluation truly functions as an instrument for improving learning quality, rather than merely an administrative formality.

Higher-order thinking skills (HOTS) are a requirement in 21st-century education, yet assessments in schools are still primarily based on lower-order thinking (LOTS) cognitive skills. This study aims to examine the concept of the Revised Bloom's Taxonomy, the characteristics of instruments based on Higher-Order Thinking Skills (HOTS), and their implementation in instrument development. This study used a qualitative approach with a heritage study method. Data were obtained from books, scientific journals, and educational policy documents related to HOTS-based assessment. Analysis was conducted through data reduction, categorization, and drawing conclusions based on their alignment with the Revised Bloom's Taxonomy framework. The results of this study indicate that cognitive levels C4-C6 in the Revised Bloom's Taxonomy serve as the primary reference in developing HOTS instruments, which can assist in developing HOTS-based instruments to measure students' higher-order thinking skills.

This study aims to describe the implementation of Islamic school culture in shaping the religious character of students at SMK Islam Insan Mulia. The research employed a descriptive qualitative approach based on interview transcripts with three students from different vocational programs, namely Mechanical Engineering, Accounting, and Culinary Arts. Data were analyzed through data condensation, thematic coding, data presentation, and interpretive conclusion drawing to obtain a comprehensive understanding of students’ experiences. The findings indicate that Islamic school culture is implemented through religious routines, student discipline, teacher guidance, ethical vocational learning, and the development of a clean and orderly school environment. These practices contribute to the formation of religious character, which is reflected in students’ worship awareness, moral responsibility, honesty in learning, discipline, cooperation, and future orientation. The study also identified several challenges, including limited student independence, peer dependence in group assignments, and the gradual development of facilities in a new vocational program. These findings suggest that Islamic school culture needs to be managed consistently through habituation, teacher role modeling, continuous monitoring, and integration with vocational competencies. The study implies that strengthening Islamic school culture can support both religious character formation and vocational readiness among students.

The Kampung Bahari Nusantara (KBN) Program is one of the Indonesian Navy's community empowerment initiatives aimed at improving the welfare of coastal communities through the development of economic, educational, health, tourism, and defense sectors. Tlocor Hamlet, Kedungpandan Village, Jabon District, Sidoarjo Regency, possesses significant coastal resource potential and marine tourism opportunities; however, the implementation of the program has not yet achieved optimal results. This study aims to analyze the implementation of the Kampung Bahari Nusantara Program and formulate strategies to optimize its contribution to community welfare improvement. The research employed a qualitative descriptive approach through observation, interviews, and documentation involving village officials, community members, and representatives of the Indonesian Navy. The findings indicate that the program has positively impacted infrastructure development, tourism growth, and public service accessibility. Nevertheless, several challenges remain, including limited community participation, inadequate human resources, insufficient educational and health personnel, and weak inter-agency coordination. The study concludes that optimization can be achieved through strengthening stakeholder collaboration, enhancing community empowerment, improving infrastructure maintenance, and expanding educational and health services. These efforts are expected to promote sustainable welfare improvement and strengthen maritime resilience in coastal areas.

Land-use changes dominated by impervious surfaces in residential areas reduce the natural infiltration capacity of the soil and increase surface runoff, which may lead to flooding and waterlogging. This study aimed to design a rainwater infiltration well system as an effort to reduce surface runoff in Samudera Afroza 3 Housing Estate, Jambi City. A quantitative approach was employed through field surveys, hydrological analysis, soil permeability testing, GIS-based land-use analysis, and infiltration well design in accordance with SNI 8456:2017 and SNI 03-2453-2002 standards. Rainfall analysis was conducted using maximum daily rainfall data from 2014–2023, applying several probability distributions, with the Gumbel distribution identified as the most representative model. The results revealed that the residential area covers 8,104 m², with 91.84% of the land occupied by built-up surfaces, resulting in limited natural infiltration capacity. The average soil permeability value of 0.00024 m/s indicates favorable conditions for the implementation of infiltration wells. Based on the design calculations, 41 Type III infiltration wells are required, providing a total storage capacity of 289.665 m³ and an infiltration discharge of 0.0919 m³/s. The proposed infiltration well system is capable of reducing runoff volumes by 15.044%, 12.486%, and 11.223% for 2-year, 5-year, and 10-year return periods, respectively. Therefore, infiltration wells can be considered an effective alternative for water conservation and runoff management in residential areas.

The governance of sand and gravel mining requires an integrated assessment of technical planning, occupational safety, environmental control, reclamation, and regulatory compliance. This study evaluated the governance of CV. Ria Bersaudara, a sand and gravel mining company located in Pasar Surulangun, Rawas Ulu District, Musi Rawas Utara Regency, using the Good Mining Practice framework. The study used a descriptive evaluative approach based on field observation, document review, indicative resource estimation, equipment productivity analysis, occupational safety and environmental risk assessment, and compliance mapping. The results show that the company has a basic legal foundation through an exploration mining permit covering 12.5 ha; however, several governance components require improvement. The indicative prospective area was approximately 2.50 ha, with an effective follow-up area of 1.80 ha and an estimated indicative resource of 21,600 m³ or 35,640 tons. Productivity analysis indicated that excavator capacity reached about 61 m³/hour, while one dump truck only transported about 10.3 m³/hour, creating a haulage bottleneck if the truck fleet is insufficient. Safety implementation was also not optimal, with personal protective equipment compliance estimated at only 55%. The study recommends validating permit documents, strengthening technical exploration data, improving drainage and sediment control, enforcing safety procedures, implementing progressive reclamation, and establishing daily operational records.

This study aims to formulate an engineering strategy for water quality management and pollution control in the Tiku Sub-watershed, North Musi Rawas Regency. The study used a descriptive approach by integrating selected technical data from a dissertation-based assessment with semi-structured interviews involving 20 key informants representing technical agencies, village and subdistrict governments, community leaders, artisanal and small-scale gold mining actors, farmers, and riverbank communities. The analysis focused on water quality status, water availability and demand, pollution sources, perceived impacts, implementation constraints, and priority interventions. The results showed that the Tiku Sub-watershed is under significant environmental pressure. The average pollution index was 6.65, indicating a moderately polluted status, while mercury, cadmium, phosphate, and ammonia were the dominant parameters of concern. Surface water availability remained relatively adequate at 45,842,699.79 m3/year, and the average Criticality Ratio was 0.266; however, the water pollution carrying capacity was poor. Interview results indicated that mercury use and processing waste from artisanal gold mining were the most urgent issue (35%), followed by land-cover change and riparian degradation. The recommended strategy combines mercury-free processing technology, alternative livelihood development, cross-sectoral supervision, riparian rehabilitation, and transparent water-quality monitoring. The findings imply that watershed engineering should integrate technical, institutional, and socio-economic interventions.

This study aims to describe the implementation of the group discussion model as a strategy to strengthen students' collaboration in Indonesian procedural text learning in Grade IV of SDN 8 Selat Penuguan. The study focuses on the implementation of group discussion, the forms of students' collaboration, the teacher's role in guiding collaboration, and the supporting and inhibiting factors in the learning process. This research employed a descriptive qualitative approach. The primary data were obtained from the teacher and Grade IV students, while supporting data were collected from learning documents. Data were gathered through observation, interviews, and documentation, and were analyzed through data reduction, data display, and conclusion drawing. Data validity was strengthened through source and technique triangulation. The findings indicate that group discussion was implemented through planning, small-group formation, procedural-text-based tasks, discussion, presentation, feedback, and reflection. The model strengthened students' collaboration through task sharing, mutual assistance, expressing opinions, listening to peers, and taking responsibility for group outcomes. The teacher acted as a learning designer, facilitator, guide, communication mediator, and evaluator of collaborative processes. Supporting factors included teacher readiness, the suitability of procedural text material, the use of worksheets, and a conducive classroom climate, while inhibiting factors included uneven student participation, limited time, differences in language competence, and the dominance of particular students in group work. The study concludes that the group discussion model is relevant for procedural text learning because it integrates material comprehension with the development of elementary students' social skills.

The implementation of web-based archive digitalization can help improve performance in the field of archive recording, which was previously still manual at the Naval Academy. Some of the obstacles include archiving that is still manual, many files lost due to piled-up storage systems, and human resources in the field of archiving that are still lacking. This study aims to increase time and cost efficiency in archive processing, reduce the risk of loss and damage to archives, and improve the abilities and skills of human resources in the process of using digital archives. This type of research is descriptive qualitative. The data collection techniques are interviews, observation, and documentation with respondents as well as appropriate documentation. The data analysis was carried out through the processes of data reduction, data display, as well as verification or drawing conclusions. The research results can help improve the efficiency and security of archiving by minimizing risks, so that archive management can enhance efficiency and effectiveness, focusing on the implementation of web-based applications.


Analyzing the freshwater needs on Landing Platform Dock (LPD) type ships in the Amphibious Unit of Koarmada II, with a focus on the implementation of the Reverse Osmosis (RO) system to supply freshwater at sea. The problem faced is the limited supply of freshwater on ships operating far from external freshwater sources. This study uses a qualitative approach with interviews, observations, and documentation as data collection methods. The results of the study indicate that the RO system can improve the efficiency of freshwater supply, although technical challenges such as maintenance and crew training still need to be addressed. Optimal implementation of the RO system can support the logistical independence of the ship during long-term operations in remote waters. This study is expected to serve as a reference for the development of freshwater supply systems on Indonesian warships.

Children's literacy can be improved through interactive learning media. A digital children's story platform, previously a mobile application, required web version development to expand user accessibility via browsers. The main challenge in this development was presenting multimedia content such as text, images, and audio dubbing synchronously scene-by-scene without degrading system performance, as well as facilitating reader interaction through a rating feature. This research aims to design and develop the platform using a Decoupled Architecture approach. The software development method used is Waterfall, encompassing requirement analysis, system design (UML, CDM, and PDM), implementation, testing, and maintenance. During implementation, ReactJS is utilized on the client-side for responsive interface rendering and state management, while Laravel is implemented on the server-side as a RESTful API provider to manage multimedia asset transmission, rating records, and the MySQL database. Functional system testing was evaluated using Black-box Testing, while user experience was validated using Spearman's Rank Correlation. The results indicate that this architectural separation (front-end and back-end) effectively resolves server overload issues commonly found in monolithic architectures and produces a seamless, stable asynchronous data transmission system across various devices.

Manual teaching journal management at SMA Negeri 1 Kayen frequently leads to documentation inefficiencies, risks of data loss, and challenges in the teaching supervision process. This research tends to design and develop a web-based teacher teaching journal information system employing the CodeIgniter 3 framework with a Model-View-Controller (MVC) architecture. The system was improved employing the Waterfall methodology, comprising requirements analysis, system design, implementation, testing, and maintenance phases. The system integrates four user roles—administrator, teacher, student, and supervisor—to support the digitalization of recording processes, real-time teacher attendance verification by students, and centralized activity monitoring. Black Box Testing outcomes present that all system functions, involving authentication, data management, and reporting, operate 100% in accordance with user requirements. The implementation of this system effectively reduces administrative time compared to manual methods while enhancing the accountability and transparency of teaching journal management within the school. With centralized data integration, this system helps as an effective solution for supporting data-driven managerial decision-making in education.