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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.

This community service program was carried out to enhance the technological literacy of residents in Telang Sari Village through the introduction of an automated street lighting system based on sensor technology. The system presented to the community utilizes an Arduino microcontroller integrated with an LDR sensor to detect light intensity and an ultrasonic sensor to identify the presence of nearby objects. With this configuration, the street lights operate automatically: they turn on when the environment becomes dark and an object is detected, and turn off when the surroundings are bright or no activity is detected in the sensing area. The program activities included device installation, technical explanation, and a live demonstration to ensure that residents comprehended its functions and benefits. Additionally, the use of solar panels was introduced as an alternative power source to support sustainable operation without relying on grid electricity. The results of the program showed a positive response from the community, as the system was considered effective in improving nighttime safety, reducing energy consumption, and requiring minimal maintenance. Overall, this activity successfully increased public understanding of automation technology and renewable energy applications suitable for rural community development.

The increasing demand for electrical energy, particularly in offices and commercial buildings, has made energy efficiency a critical aspect of sustainable development. Among various building components, lighting systems are recognized as one of the major consumers of energy. This study investigates the potential for energy savings through the adoption of a smart lighting system incorporating IoT-based sensors, motion detectors, and dimming controls. Employing a quantitative descriptive approach, the research was conducted at the workspace of Indie Light, comparing energy consumption before and after the implementation of the system. Data were collected using direct observation, light and power meters, and real-time monitoring devices to ensure accurate measurement. The results demonstrate that smart lighting systems can substantially reduce energy use without compromising lighting quality or comfort. By integrating intelligent sensors and adaptive control algorithms, the system not only optimizes energy efficiency but also aligns with national policies on energy conservation, supporting broader environmental sustainability efforts. These findings suggest that smart lighting solutions can play a significant role in promoting energy-efficient practices in commercial spaces while contributing to sustainable development goals.

This community service program was carried out to enhance the technological literacy of residents in Telang Sari Village through the introduction of an automated street lighting system based on sensor technology. The system presented to the community utilizes an Arduino microcontroller integrated with an LDR sensor to detect light intensity and an ultrasonic sensor to identify the presence of nearby objects. With this configuration, the street lights operate automatically: they turn on when the environment becomes dark and an object is detected, and turn off when the surroundings are bright or no activity is detected in the sensing area. The program activities included device installation, technical explanation, and a live demonstration to ensure that residents comprehended its functions and benefits. Additionally, the use of solar panels was introduced as an alternative power source to support sustainable operation without relying on grid electricity. The results of the program showed a positive response from the community, as the system was considered effective in improving nighttime safety, reducing energy consumption, and requiring minimal maintenance. Overall, this activity successfully increased public understanding of automation technology and renewable energy applications suitable for rural community development.

This community service was carried out at SMAS PGRI 1 Mojokerto City with the main goal of improving student discipline through the application of Japanese-style discipline culture. This activity is designed in a structured manner to have a real and sustainable impact on student behavior and the integrity of educational institutions. The method used is a participatory and applicative approach, so that students not only passively receive information, but also actively engage in the process of learning, reflection, and discipline practice. This approach emphasizes the direct involvement of students in activities that foster awareness, responsibility, and positive habits that support the creation of a conducive learning environment. The results of the implementation of activities are divided into three main categories. First, the short-term results seen immediately after the activity are increased students' motivation and understanding of the importance of discipline. Second, the medium-term results that appear within 1-3 months are in the form of real behavioral changes, such as punctuality, neatness, and compliance with school rules. Third, long-term results that contribute to strengthening the integrity of the institution as a school with a high discipline image. Thus, this community service is expected to be able to become a model for implementing a discipline culture that is effective, sustainable, and relevant to the needs of education in Indonesia.

Environmental cleanliness is a critical factor in the effective management of nature-based tourist destinations, as it strongly shapes tourists’ perceptions of destination quality, comfort, and overall attractiveness, as well as their intention to visit and revisit. This study aims to examine the extent to which environmental cleanliness influences tourists’ visit intention in the Harau Valley tourism area (Lembah Harau), Kanagarian Tarantang, Harau District, Lima Puluh Kota Regency. The research employed a quantitative survey method by distributing structured questionnaires to 50 tourists during their visit to Lembah Harau. The variables measured include tourists’ perceptions of environmental cleanliness, such as waste management practices, sanitation conditions, and the availability of waste disposal facilities, as well as visit intention indicators, including intention to return and willingness to recommend the destination to others. The findings highlight the importance of maintaining a clean environment to enhance tourists’ positive behavioral intentions. The implications of these findings suggest that destination managers and local government authorities should consistently enforce cleanliness policies, strengthen integrated waste management systems, and provide adequate sanitation facilities to enhance the attractiveness of Lembah Harau and support sustainable tourism development, without neglecting the need for continuous monitoring, evaluation, and improvement in these areas.

Background: The development of modern manufacturing systems requires production scheduling strategies that not only improve productivity but also optimize energy utilization. Multi-machine production systems with job-shop configurations exhibit high complexity due to dynamic interactions between machines, job queues, and varying processing times, making conventional scheduling methods less effective in handling changing operational conditions. Objective: This study aims to develop and evaluate a reinforcement learning based production scheduling approach to improve production efficiency while reducing energy consumption in multi-machine manufacturing systems. Methods: This research employs a job-shop based multi-machine production simulation model as the experimental environment. The scheduling problem is formulated as a Markov Decision Process, enabling the implementation of reinforcement learning algorithms, namely Q-learning and Deep Q-Network, to learn optimal scheduling policies through interaction with the simulation environment. Energy consumption parameters are incorporated into the reward function so that the learning agent can consider energy efficiency in the scheduling decision-making process. System performance is evaluated using three main metrics, namely energy consumption, throughput, and makespan. Results: The experimental results show that the reinforcement learning based scheduling approach achieves better performance compared to conventional scheduling methods, resulting in lower energy consumption, higher job completion rates, and shorter production completion times within the multi-machine manufacturing system.

Increasing in energy demand and limited fossil fuel reserves have driven the use of environmentally friendly alternative energy sources. This study aims to analyze the effect of pyrolysis temperature variations on the quality of biopellets made from bagasse and coffee husks. The materials were prepared in a 50:50 ratio with the addition of 15% tapioca flour as a binder. The pyrolysis process was carried out at temperatures of 450°C, 500°C, and 550°C for 120 minutes in oxygen-free conditions. The biochar resulting from pyrolysis was formed into biopellets, which were then tested for proximate composition, calorific value, and combustion rate. The results showed that an increase in pyrolysis temperature had a significant effect on the characteristics of the biopellets. A temperature of 550°C produced the lowest moisture content (8.436%), the highest fixed carbon content (62.191%), the highest calorific value (6293 cal/g), and the highest combustion rate (0.05789 g/sec). Conversely, ash content increased with rising temperature, while volatile matter content decreased. Thus, the best biopellets were obtained at a temperature of 550°C. This study confirms the potential of bagasse and coffee husks as raw materials for biopellets through pyrolysis temperature optimization to support the development of sustainable biomass energy.

Digital technology has become an essential part of managing small and medium-sized enterprises (SMEs), especially in efforts to achieve business sustainability. Kampong Bharu, as an iconic area in Kuala Lumpur, is home to numerous micro, small, and medium-sized enterprises (MSMEs) operating in the culinary, craft, and tourism sectors, but faces challenges in implementing environmentally friendly practices. This research aims to analyze the application of green digital management to MSMEs in Kampong Bharu as a sustainable business strategy. The research method uses a qualitative approach with in-depth interviews and participant observation of 15 MSME actors. The research results show that integrating digital technology with environmentally friendly principles, such as paperless digital marketing, energy-efficient use, and sustainable packaging systems, can enhance the competitiveness and positive image transformation of MSMEs. This finding has practical implications for business owners and stakeholders in developing a digital-based green MSME model in historic urban areas. These findings can also serve as a guide for implementing sustainable business strategies in the MSME sector in other major cities.

The rapid development of urban areas has created significant challenges in mobility, particularly the increasing use of private motor vehicles, which contributes to traffic congestion, air pollution, greenhouse gas emissions, and a decline in the quality of urban life. Sustainable transportation emerges as a solution by emphasizing the balance between environmental, social, and economic aspects through the use of eco-friendly modes such as public transport, walking, and cycling. However, the adoption rate of these modes remains relatively low due to perceptions of convenience, car-oriented culture, and limited environmental awareness. This study aims to analyze the implementation of sustainable transportation education as a strategy to raise urban communities’ awareness of eco-friendly mobility. The research employs a qualitative approach with descriptive analysis based on literature studies. Findings indicate that the use of digital media, social campaigns, and community participation plays a crucial role in shaping positive attitudes, new social norms, and pro-environmental behavior. Effective education not only delivers information but also builds values, norms, and new habits that support sustainable mobility. Furthermore, multi-stakeholder collaboration among government, communities, and the private sector strengthens the effectiveness of educational programs. Evaluation results show that continuous education enhances transportation literacy, ecological awareness, and urban quality of life. Thus, the implementation of sustainable transportation education serves as a strategic foundation for transforming urban mobility toward a healthier, inclusive, and equitable transportation system.

East Nusa Tenggara (ENT) possesses substantial natural resource potential across the agricultural, fisheries, renewable energy, and tourism sectors. However, their utilization remains largely unsustainable and continues to face challenges such as excessive resource exploitation, environmental degradation, limited infrastructure, and low human resource quality. This study aims to analyze the prospects and challenges of sustainable economic development in ENT by highlighting natural resource management and opportunities for developing new economic sectors based on innovation and local wisdom. The findings indicate that ENT has strategic opportunities in renewable energy development, sustainable tourism, and agricultural diversification, although these are constrained by weak governance, socio-economic inequality, and vulnerability to climate change. Therefore, the economic transformation of ENT requires strengthened regulations, multi-stakeholder collaboration, and sustainability-oriented investment. The findings underscore the necessity of fostering a sustainable economic transformation in ENT that aligns with global environmental goals while respecting local traditions and resources. This research provides valuable insights for policymakers, businesses, and community stakeholders aiming to promote sustainable growth in the region.

Belawa Village, located in Lemahabang District, Cirebon Regency, West Java, is famous for the Labi-labi Belawa tourist attraction. This study aims to develop a sustainable tourism village at the Cikuya Tourist Attraction in Belawa Village. This model is expected to be an integrated solution to support the implementation of sustainable tourism. The research method used is descriptive qualitative, with quantitative data analysis. The results of the study show that the implementation of sustainable tourism in Cikuya is evident through environmental preservation and the conservation of the Belawa turtle habitat. Although the management is not yet optimal, there are practices of utilizing organic waste, such as chicken manure for animal feed and coconut shells for souvenirs, supporting the circular economy concept. Community participation in cultural activities also supports the social and cultural aspects of sustainable tourism, although it is still incidental and has not yet been programmed sustainably. However, the implementation of sustainable tourism in Cikuya is not yet fully optimal, despite having strong natural and conservation potential. Structural and operational barriers, such as accessibility, human resources, institutional governance, economy, socio-culture, and policy support, affect the effectiveness of applying sustainability principles.

The socialization activity on personal and environmental hygiene at SDN 19 Sungai Kakap was conducted to improve students’ knowledge, attitudes, and awareness regarding the importance of maintaining personal cleanliness and a healthy school environment. This activity addressed the common issue of limited understanding and practice of hygiene among elementary school students, which can affect health and learning outcomes. The methods used included interactive counseling sessions, practical demonstrations of proper hygiene practices such as handwashing and waste disposal, and the use of visual educational media to increase student engagement and comprehension. The effectiveness of the activity was measured using pre-test and post-test evaluations. The results showed a 75% increase in students’ knowledge levels after the intervention, accompanied by observable positive behavioral changes related to cleanliness both at school and at home. Students demonstrated improved habits in maintaining personal hygiene and participating in keeping their environment clean. Despite challenges such as limited time allocation and inadequate cleaning facilities, the activity successfully fostered sustainable awareness and encouraged the formation of healthy habits. Therefore, it is recommended that similar socialization activities be conducted regularly using varied educational methods and supported by adequate hygiene facilities to strengthen long-term behavioral change.

Community service activities in traditional fish ponds on Tibi Island, Tarakan, aim to increase the productivity of fish and shrimp farming using a simple yet effective approach. The methods applied include manual pond maintenance, such as spreading molasses solution (EM-4) to improve water quality, removing pests such as snails and oysters, and routine net maintenance and water drainage. Feed management is carried out every three days to maintain the nutritional balance of fish and shrimp. Although without the use of sophisticated technology, the success of cultivation depends heavily on the experience and thoroughness of the farmers in managing the pond environment. Overall, this activity demonstrates that a simple and structured approach can support sustainable cultivation, increase productivity, and strengthen collaboration between the implementation team and the pond owners. It is hoped that this method can serve as a useful example for other traditional fish farmers in increasing aquaculture yields and supporting more efficient and environmentally friendly farming practices.

Local governments play a strategic role in public service delivery and are required to undertake rapid, systematic, and sustainable institutional and governance transformation. These demands arise in response to changes in the organizational environment, regulatory developments, and increasing public expectations regarding the quality, effectiveness, and accountability of public services. Improving the capacity of human resources, particularly those managing services and complaints, is a crucial factor in ensuring professional, adaptive, and technology-based services. However, issues with staff competency are still found in public service institutions that interact directly with the public, particularly at the sub-district level. In an effort to improve the quality of public administration services, the government established the Integrated Sub-district Administrative Services (PATEN) policy as stipulated in Minister of Home Affairs Regulation Number 4 of 2010. This study aims to analyze the implementation of the PATEN policy in Sawangan District, Depok City, using a qualitative approach and descriptive methods. The results indicate that the implementation of PATEN has generally been effective, marked by the fulfillment of substantive, administrative, and technical aspects, and supported by clear regulations. However, public complaint services have not been optimal due to technical constraints in the website-based complaint system.

This study aims to examine the influence of product innovation, digital marketing, and business networking on the competitiveness of small and medium-sized enterprises (SMEs), with customer engagement positioned as a mediating variable. Employing a Systematic Literature Review (SLR) approach, thirty Scopus-indexed articles published between 2020 and 2025 were analysed to synthesise theoretical and empirical insights related to SME competitiveness in contemporary digital and urban business environments. The findings indicate that product innovation, digital marketing, and business networking each play a significant role in strengthening SME competitiveness, particularly within markets characterised by rapid technological change. Customer engagement emerges as a critical mediating mechanism that connects these strategic variables to sustainable competitive advantage. It enhances the impact of innovative and digital strategies by fostering stronger emotional, behavioural, and participative interactions between SMEs and their customers. The review also highlights that SMEs adopting integrated digital management practices, such as the utilisation of human-resource information systems (HRIS) and data-driven decision-making tend to demonstrate greater adaptability, market responsiveness, and long-term performance. The study contributes theoretically by integrating resource-based and dynamic capability perspectives, offering a holistic understanding of how digital and relational capabilities interact to elevate competitiveness. Practically, the findings provide strategic guidance for policymakers, SME managers, and practitioners in designing innovation-oriented and digitally enabled initiatives that support sustainable SME growth in the digital era.

Rapid This study examines the effectiveness of environmental legal instruments in addressing water access inequalities in multicultural rural communities. Despite the existence of various legal frameworks, disparities in water access remain prevalent, especially in rural areas where socio economic, cultural, and governance challenges persist. Legal instruments such as the Water Framework Directive (WFD) and the Clean Water Act (CWA) have proven effective in improving water quality and access in urban settings, but their impact in rural communities is often limited. The study explores the role of legal pluralism, where both statutory and customary laws coexist, in enhancing water governance. It also evaluates the importance of integrating cultural sensitivity into legal frameworks to foster community participation and sustainable water management. Through a mixed methods approach combining legal analysis and socio economic assessments, this study provides insights into the barriers to effective water governance and proposes policy recommendations for improving water access. Key findings suggest that inclusive governance models, which respect local customs and empower communities, lead to more sustainable and equitable water management outcomes. The study highlights the need for legal reforms that recognize the diverse cultural, governance, and infrastructural contexts of rural communities, ensuring that water access policies are both culturally adaptive and legally effective. By integrating these approaches, future policies can more effectively tackle water access inequalities in multicultural rural settings.  

Reading literacy in early childhood is an important foundation for children's cognitive, language, and social development in subsequent educational stages. Literacy in early childhood can begin through letter recognition, fostering interest in printed materials, enriching vocabulary, and developing oral communication skills. At this stage, the initial skill that needs to be developed is the introduction of written language through reading activities tailored to the child's developmental characteristics. However, early childhood's ability to understand reading literacy shows significant differences, both in terms of interest, ability, and environmental support. This condition indicates that reading literacy understanding in early childhood is not evenly distributed. Therefore, this community service activity aims to provide reading literacy education to early childhood through a fun, interactive, and contextual approach. The activity methods include reading assistance, the use of visual media, and the active involvement of educators and parents. The results of the activity show an increase in reading interest, letter recognition skills, and children's positive responses to literacy activities. This activity is expected to be a sustainable effort to support the strengthening of reading literacy in early childhood education.

Mosque-based community economic empowerment activities have significant potential to improve community welfare, particularly for small businesses in the mosque's immediate vicinity. However, implementation is still largely conventional and lacks a data-driven approach, resulting in suboptimal beneficiary identification and activity evaluation. This community service initiative aims to promote a data-driven approach to mosque-based community economic empowerment through sharia bazaar activities. Implementation methods include initial observation, outreach and education for mosque managers and business owners, technical assistance for sharia entrepreneurship, and activity evaluation. The results demonstrate an increased public understanding of the importance of data use in determining beneficiaries, managing bazaar activities, and developing businesses based on sharia economic principles. The outcomes of this initiative include improved data management literacy, a simple data collection format for sharia bazaar activities, and recommendations for developing a mosque-based data collection system. It is hoped that this initiative will be the first step in building a sustainable, transparent, and data-driven community economic empowerment model within the mosque environment.

Bullying in secondary schools is a serious issue that affects students’ psychosocial well-being and academic achievement, and significantly disrupts the learning climate and the quality of social relationships among students. This community service activity aimed to implement the Child-Friendly School Program through anti-bullying socialization at SMA N 1 Kersana in order to enhance the understanding and commitment of all school members in creating a safe, inclusive, and sustainable learning environment. The method employed a participatory approach, including needs assessment, interactive socialization sessions, focus group discussions, case simulations, and structured evaluation using pre-test and post-test instruments. The results indicated a 23% increase in participants’ understanding based on the comparison of scores before and after the intensive implementation of the program. Furthermore, a “Bullying-Free School” declaration was established along with a plan to strengthen the Violence Prevention and Handling Team as a more systematic sustainability strategy. These findings confirm that participatory-based socialization effectively reinforces the implementation of the Child-Friendly School Program and fosters a safe, inclusive, sustainable, and responsive school culture that supports students’ positive character development.