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This research aims to design and develop a prototype wave power plant that utilizes the vertical motion of a buoy as a source of mechanical energy, which is then converted into electrical energy using a recoil starter mechanism. The system is designed to be installed at the stern of a prototype ship. The vertical movement of the buoy caused by ocean waves is transmitted to the recoil starter through a drive rope, producing a stable one-way rotational motion. This rotation is further transmitted to a gearbox to increase rotational speed before driving a DC generator. The electrical energy generated is stored in a 12 VDC battery, supported by a buck–booster converter to stabilize the output voltage. This study employs an experimental engineering approach to evaluate system performance based on empirical test data. The main components of the system include a buoy as a wave energy collector, a recoil starter as the initial rotating mechanism, a DC generator as the electrical energy producer, a buck–booster converter as a voltage regulator, a 12 VDC battery as an energy storage unit, and a monitoring system based on an ESP32 microcontroller integrated with a PZEM-017 sensor. Experimental results show that the recoil starter operates effectively in driving the generator under both no- load and buoy-loaded conditions. Increases in generator rotational speed are directly proportional to increases in output voltage and current. The PZEM-017 sensor demonstrates a high level of measurement accuracy, approaching 100% when compared with a multimeter. Overall, the proposed wave power generation system functions reliably and shows potential for further development as a small-scale alternative renewable energy source.

The increasing demand for electrical energy and the limited availability of fossil fuels have driven the development of renewable energy sources, including marine current energy, which remains underutilized in coastal and remote maritime regions. This study presents the design and realization of a small-scale marine current power generation prototype using a horizontal axis propeller turbine with a NACA S814 blade profile and analyzes the effect of turbine rotational speed on electrical power output. The system converts marine current kinetic energy into mechanical energy through turbine rotation and subsequently into DC electrical energy using a generator, which is stabilized by a Buck–Boost Converter and Maximum Power Point Tracking (MPPT) for charging a 12 VDC battery. Real-time monitoring of electrical and mechanical parameters is implemented using an Internet of Things (IoT)–based system comprising an ESP32 microcontroller, a PZEM-017 sensor, and an RPM sensor. Experimental results demonstrate a positive correlation between water flow rate, turbine rotational speed, and generator output voltage. The system begins operating at a minimum flow rate of 35.2 L/s at 56 RPM, producing 0.2 V, while optimal performance is achieved at 45.3 L/s and 516 RPM, generating up to 13.3 V. These results indicate that the proposed prototype is a viable alternative renewable energy source for marine applications.

The development of digital technology provides new opportunities for learning innovation, including in literature learning at Sma Negeri 1 Serang City. This study aims to describe the use of Blogger as a literature learning medium in improving short story writing skills of high school students in the digital era. This study uses a qualitative approach with descriptive methods. The subjects of the study were students of SMA Negeri 1 Serang City with a population of approximately 1,756 students who participated in short story writing learning based on Blogger as a publication and learning medium. Data collection techniques were carried out through observation, interviews, and document analysis of the results of students' short stories published on Blogger. The purpose of this study is to determine the benefits of using Blogger in literature learning to increase student learning motivation, provide space for creativity in writing, and make it easier for students to publish and share their literary works digitally. In addition, Blogger media also encourages students to be more active in the learning process because of interactions through comments and feedback from teachers and peers. Thus, the use of Blogger as a literature learning medium can be an innovative alternative in improving short story writing skills of high school students in the digital era.

PT Bank Pembangunan Daerah Jawa Timur Tbk (“Bank Jatim”) is a regional-owned company engaged in banking. The main activity of this company is to collect and channel funds and provide other banking services to all customers in the East Java region.  With the tagline "Yang Terbaik Untuk Anda", Bank Jatim maximizes the best potential ranging from services to the provision of products that continue to be developed and created technology-based to achieve BPD Regional Champion. It will not be achieved without the role of optimal human resources. The purpose of this study was to test and analyze the effect of employee empowerment on employee engagement through job satisfaction in employees of the corporate secretary division of Bank Jatim Surabaya Head Office. Where the employee empowerment variable has four indicators, the four of which will be studied, namely sense of meaning, sense of competence, self determination, impact. This research is causality research with a quantitative approach. Sampling technique used saturated samples with a total of 37 respondents in the corporate secretary division of Bank Jatim Surabaya Head Office. The statistical analysis used in this research is partial least square (PLS) with the help of smartPLS 3.0 software. The results of this study explain that employee empowerment has a positive and significant effect on employee engagement, employee empowerment has a positive and significant effect on job satisfaction. Job satisfaction has a positive and significant effect on employee engagement. Job satisfaction is able to mediate the relationship between employee empowerment and employee engagement.

Waste management remains a critical environmental issue due to the lack of public awareness in separating organic and inorganic waste, resulting in accumulation and environmental pollution This study aims to analyze and evaluate the development of automatic waste sorting systems based on proximity sensors with full-capacity notification using a Systematic Literature Review (SLR) approach.. The proposed system utilizes a combination of sensors, including proximity sensors for material identification and ultrasonic sensors for detecting object presence and bin capacity, integrated with a microcontroller for real-time processing. Additionally, the system is equipped with IoT-based monitoring that allows users to receive notifications when the waste bin reaches its capacity. The research method involves system design, hardware and software integration, and functional testing to evaluate system performance. The results indicate that the system is capable of sorting waste automatically with a high level of accuracy and responsiveness, while also providing real-time monitoring to support waste management operations. The implementation of this system can reduce manual intervention, increase operational efficiency, and promote better waste segregation practices. Furthermore, this study highlights the potential of integrating smart technology into environmental management systems, contributing both theoretically and practically to the development of sustainable waste management solutions.

This study examines the effectiveness of Assemblr Augmented Reality (AR) in improving English vocabulary mastery among deaf students in an inclusive classroom setting. The research was conducted at SD N 2 Bengkala using a quantitative pre-experimental design with a one-group pre-test and post-test approach. The participants were Grade 5 deaf students selected through purposive sampling. Data were collected using a researcher-developed vocabulary test consisting of 15 items, which was validated through expert judgment and demonstrated high reliability (Cronbach’s Alpha = 0.815). Descriptive statistical analysis revealed a substantial improvement in students’ vocabulary scores, with the mean increasing from 45.00 in the pre-test to 76.50 in the post-test. The minimum score improved from 40 to 73, and the maximum score increased from 50 to 80. Inferential analysis using the Wilcoxon Signed-Rank Test showed a significance value of 0.180, indicating no statistical significance due to the small sample size. However, the observed improvement indicates strong practical significance. The findings suggest that Assemblr AR enhances vocabulary learning by providing visual and interactive learning experiences that support deaf students’ cognitive processing. This study highlights the potential of AR technology as an effective instructional medium in inclusive education environments.  

This study explores the development strategies of sweet pastry Micro, Small, and Medium Enterprises (MSMEs) based on Islamic economic principles in improving the local economy in Betungan, Bengkulu City. MSMEs play a crucial role in supporting economic growth and creating employment opportunities, particularly in the culinary sector, which has experienced significant expansion in recent years. In Betungan, sweet pastry businesses have shown promising potential; however, their development is still hindered by several challenges, including limited capital, low product innovation, and less effective marketing practices. This research employs a qualitative approach with a case study method. Data were collected through observation, interviews, and documentation at Jl. Ar-Rahman, Sepakat 7, Betungan, Selebar District, Bengkulu City. The study also considers the application of Islamic business values, emphasizing ethical conduct such as honesty, fairness, accountability, and the avoidance of riba and uncertainty in transactions. The findings indicate that the sustainability and competitiveness of sweet pastry MSMEs can be enhanced through several key strategies, including continuous product innovation, improving product quality, optimizing digital marketing, and strengthening business networks. In addition, integrating Islamic principles into business operations helps build consumer trust and ensures ethical business practices. Overall, these strategies not only improve business performance but also contribute to strengthening the local economy and community welfare.

This study was conducted to determine the best log-linear model describing the relationship between gender, sleep duration, extracurricular activities, and student learning outcomes at SMAN 1 Kualuh Hulu. A log-linear analysis approach was used to identify interaction patterns among the variables and evaluate their contribution to student academic performance. The findings showed that the selected model adequately explained the structure of the observed data. A significant three-way interaction was identified between learning outcomes, sleep duration, and gender. The results indicated that insufficient sleep duration had a negative impact on student learning outcomes, and this effect varied by gender. Female students were found to be more vulnerable to decreased academic performance caused by sleep disturbances compared to male students. Meanwhile, extracurricular activities did not demonstrate a significant direct interaction with learning outcomes. This suggests that participation in extracurricular activities was not a major factor influencing differences in academic achievement among students at SMAN 1 Kualuh Hulu.

The rapid development of the Industrial Revolution (IR) 4.0  and the transition towards Society 5.0 demand an increase in digital literacy and a basic understanding of technology systems starting from secondary education. The Community Service (CS) Program conducted by the Department of Electrical Engineering Universitas Presiden aims to introduce the concepts of logic gates and digital systems to students of SMA 1 Cikarang Pusat. This CS integrates theoretical explanations and simulation practice using the online platform Circuitverse. This CS was evaluated using a Likert scale (1–4) questionnaire instrument, namely Expectation (Importance) and Performance, with a total of 40 student respondents. The analysis results show that all indicators received an average performance score above 3.30, with satisfaction indices ranging from 82.50% to 90.62%, which falls into the very high category. The indicator for the use of appropriate technology received the highest score of 90.62%, indicating the relevance of the material to current technological developments. The Importance–Performance Analysis (IPA) shows that most indicators are in the 'maintain performance' quadrant, indicating alignment between participants' expectations and the activity's performance. These findings suggest that the workshop is effective in enhancing students' understanding of basic digital system concepts while also fostering interest in engineering and technology fields. The activity underscores the strategic role of universities in bridging the technology literacy gap at the secondary education level in response to the challenges of the IR4.0 and Society 5.0.

Baros District has the potential for creative economy-based Micro, Small, and Medium Enterprises (MSMEs) products that need to be strengthened, including products from the agricultural, livestock, crafts, food, and various other types of trade sectors. This study aims to analyze and assess the steps for developing creative economy-based MSMEs in Baros District, located in Serang Regency, Banten. The method applied is a qualitative approach through observation, interviews, document collection, and using a SWOT Matrix analysis to identify the strengths, weaknesses, opportunities, and challenges faced in developing creative economy-based MSMEs in Baros District, Serang Regency, Banten. Data sources used include the Head of Baros District, local village heads, academics, MSME actors, employees from the Serang Regency MSME Office, and MSME observers. This study lasted for one year. The appropriate strategy for developing MSMEs in Baros District is the SO (Growth) strategy, which utilizes existing strengths to increase competitiveness. The research revealed that MSMEs operating in the creative economy sector in Baros District still face various challenges in developing their businesses, such as limited capital, the use of simple production equipment, suboptimal marketing, a shortage of skilled labor, and limited use of technology and copyright registration for their products.

This study aims to analyze the implementation of digital marketing in increasing sales of small and medium enterprises (SMEs) in the bedding equipment sector on online platforms. The background of this research is driven by the high level of competition in marketplaces and the need for business actors to optimize digital marketing strategies to remain competitive. The research method used is Participatory Action Research (PAR), combined with SWOT analysis to identify business conditions comprehensively. Data collection techniques were carried out through direct observation of production and marketing activities. The results show that the implementation of digital marketing through marketplaces and social commerce can expand market reach, increase sales volume, and enhance the business actor’s understanding of managing online marketing strategies. In addition, product content optimization, the use of promotional features, and customer service play an important role in increasing consumer trust and purchase decisions. However, challenges such as high advertising costs and frequent changes in platform policies were also identified. Overall, this study concludes that well-planned and efficient digital marketing strategies can improve competitiveness, profitability, and business sustainability of SMEs in the digital era.

Low financial literacy and managerial capability remain common issues faced by micro, small, and medium enterprises (MSMEs), particularly in the culinary sector, which consequently affects financial efficiency and business sustainability. Many business owners still maintain simple and unstructured financial records and often mix personal and business finances, leading to difficulties in determining profit and making appropriate business decisions. This community service activity aims to improve financial efficiency through operational management assistance for the MSME Warung Pecel Bu Nor located in Gading Fajar, Candi District, Sidoarjo Regency. The method used is Participatory Action Research (PAR), which actively involves business owners in every stage of the activity, including problem identification, action planning, implementation, evaluation, and reflection. Data collection techniques include observation, interviews, discussions, and joint reflection. The results indicate an improvement in the business owner’s understanding and skills in simple financial recording, separation of personal and business finances, and operational cost control. In addition, there is an improvement in the organization of business management and managerial awareness. This assistance contributes to increased financial efficiency, business stability, and the potential improvement of the economic welfare of business owners. Overall, this assistance has proven effective in supporting the sustainability of MSMEs; therefore, continuous assistance is needed so that business owners can consistently implement more professional business management practices.

This study aims to analyze the strategic relationship of human resource management (HRM) in improving the productivity and competitiveness of the Bakti Setia small-scale wooden furniture business. Small furniture enterprises play an important role in supporting regional economic growth and employment opportunities. However, many small businesses face challenges in human resource management, such as low workforce skills, lack of training, and minimal structured management systems. This research employed a qualitative descriptive method with data collection techniques through observation, interviews, and documentation. The results of the study indicate that the implementation of HRM strategies, including recruitment, job training, motivation, work discipline, and reward systems, has a significant relationship with increased business productivity. In addition, good communication between business owners and employees also influences work effectiveness and the quality of the furniture products produced. This study concludes that effective human resource management strategies can enhance the sustainability of the Bakti Setia small-scale wooden furniture business.

Abstract: The digital era demands that every individual possess visual literacy competencies, but in Islamic boarding schools (pesantren), access to technology is often limited to maintain focus on worship. The main problem at the Salafiyah Al-Furqon Islamic Boarding School in Sawangan, Magelang Regency, is the digital skills gap among 12th-grade students. This is caused by the boarding school's policy of only allowing mobile phone use during semester breaks, leaving students lacking practical multimedia skills prior to graduation. This community service activity aims to provide a solution through basic photography and videography training as a soft skill for alumni independence. The method used is a workshop that combines theoretical explanations and direct practice (experiential learning). The results of this activity show a significant increase in students' technical competency; participants are able to operate smartphone cameras with stable shooting techniques, understand the principles of visual composition (such as the rule of thirds and leading lines), and are able to perform basic video editing using mobile-based software applications. Through this training, Islamic boarding school graduates are expected to become individuals who are adaptive to technological developments and able to utilize visual media as a means of creative economics and digital da'wah after graduation.

Limited competence among teachers in systematically managing scientific references remains one of the main challenges in producing high-quality scientific writing. This community service activity aims to enhance the competence of Biology MGMP teachers in Sidoarjo in reference management through a Smart Referencing approach using the Mendeley application as a Reference Management System. The methods employed include training sessions, hands-on practice, and mentoring in the use of Mendeley, covering installation, library management, and the automatic integration of citations and bibliographies into scientific documents. The evaluation of the activity was conducted through questionnaire distribution to measure participants’ improvement in understanding and skills. The analysis results indicate that several technical aspects, such as the use of the Mendeley plugin in Microsoft Word (score = 3.40) and the overall ease of use of the application (score = 3.00), fall into the high category on a maximum scale of 4. This suggests that although the application is perceived as useful, there is still a need for initial adaptation in its usage. Furthermore, the overall mean score of all questionnaire items is 3.74, with a satisfaction index of 93.5%, which falls into the very high category. These findings indicate that the Mendeley-based Smart Referencing training received very positive responses and was effective in improving participants’ understanding and skills in reference management for scientific writing.

This study aims to describe the implementation of supervision management as an effort to improve the quality of education at SMAN 1 Panyabungan. Supervision is one of the functions of education management that plays an important role in improving the quality of the learning process, teacher competence, and the effectiveness of school management. This study uses a qualitative approach with a descriptive method. Data was obtained through observation, interviews, and documentation involving school principals, teachers, and education staff. The results of the study show that supervision management at SMAN 1 Panyabungan is carried out through the stages of planning, implementation, evaluation, and follow-up in a structured manner. The planning stage is carried out by preparing a supervision program according to the needs of the school, implementation is carried out through monitoring and teacher coaching activities, evaluation is carried out by assessing the results of supervision, while the follow-up is in the form of continuous improvement and development. Supervision activities have been proven to have a positive impact on improving teacher professionalism, learning quality, and achieving educational goals in schools. These findings confirm that effective supervision management can be one of the important strategies in improving the quality of education in a sustainable manner, while strengthening the role of school principals as quality improvement-oriented educational leaders.

This study aims to examine the empowerment of local human resources as a strategic asset in the internationalization process of MSMEs in Sumber Wandhe Wonosalam, Jombang, East Java. This study employs a qualitative case study approach to facilitate the investigation of complex research phenomena, evaluate various perspectives, identify contributing factors, and generate a broad overview. The study indicates that success in internationalization requires a combination of capabilities that can meet market needs, rather than a single capability. Business actors who are able to recognize opportunities for local human resource empowerment can optimize the export process. This enables the region and its residents to maintain generational training in innovative management to address the turnover of the younger generation. Ultimately, this study provides a foundation for further research on the dynamic capabilities required for MSMEs to thrive in international markets.

The development of Micro, Small, and Medium Enterprises (MSMEs) in the traditional culinary sector in Dumai City has shown significant growth, particularly in bolu kembojo products. Increasing competition requires business actors not only to focus on product quality but also to implement business ethics in their operations. This study aims to analyze the role of business ethics in enhancing customer loyalty toward bolu kembojo MSME products in Dumai City. This research employs a qualitative approach using a case study method, with informants consisting of MSME owners and consumers selected purposively. Data collection techniques include interviews, observations, and documentation, while data analysis is conducted using an interactive model involving data reduction, data display, and conclusion drawing. The findings indicate that the implementation of business ethics, such as honesty, responsibility, and good service, can enhance customer trust and satisfaction. These factors subsequently encourage repeat purchases and positive word-of-mouth recommendations. The implication of this study suggests that the application of business ethics is a crucial strategy for MSMEs in strengthening customer loyalty and sustaining business continuity.

The development of information technology, particularly the use of smartphones, has changed human activity patterns and significantly impacted the education sector. The "one-stop-shop" concept reflects the use of mobile devices as centers for various activities, including learning. This situation drives the need for innovation in the development of adaptive and interactive learning media. One solution that can be developed is an Android-based mobile application using Flutter, which can increase the effectiveness and efficiency of the learning process. The Association of Multimedia and Information Technology Professionals (PPMultindo), an organization focused on technology, has developed an Android-based learning platform. This platform is designed to provide flexible access to materials, support interactivity, and facilitate collaboration between educators. Features such as learning analysis, material recommendations, and automatic evaluation are expected to improve the quality of the learning experience. However, the implementation of this technology still faces various challenges, including limited technological competence of educators, inadequate infrastructure, and adjustments to curriculum needs. Therefore, collaborative efforts are needed to optimize the use of mobile technology to support educational transformation in the digital era.

Adolescence is a transitional period marked by rapid biological, psychological, and social changes, which often lead to various problems for individuals, particularly at the high school level. This study aims to analyze the role of guidance and counseling services in addressing these issues using a literature review approach. The method employed is a systematic literature review of relevant scientific publications from 2020 to 2026. The data collection process was carried out through the search, selection, and evaluation of literature related to student issues and guidance and counseling services in schools. The research findings indicate that students face various challenges, such as difficulties in learning, low academic ability, academic stress and anxiety, as well as social-emotional issues influenced by internal and external factors. Guidance and counseling services play a role in supporting students to self-reflect, overcome problems, and optimize their potential through preventive, curative, and developmental approaches. The success of these services is also supported by the role of counselors, collaboration with other teachers, and parental participation. However, in practice, there are still a number of obstacles, such as limited human resources, a lack of coordination, and an incomplete understanding of the functions of these services. Therefore, efforts are needed to improve implementation and cooperation so that guidance and counseling services can operate more efficiently.