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This community service activity aims to empower students and elementary school children through a collaborative performing arts program themed "Earth, Our Home. " The activity is organized by the Study Program of Madrasah Ibtidaiyah Teacher Education (PGMI) at UIN Sulthan Thaha Saifuddin Jambi and the Mamba’ul Ulum Islamic Institute Jambi. The methods of activity include participatory planning, direct assistance in the arts, and cultural performances such as traditional dance, educational drama, musical poetry presentations, and an environmentally friendly fashion show. The results of the activity demonstrate a significant improvement in the students' leadership, collaboration, and communication skills. Meanwhile, elementary school students demonstrate an increased sense of self-confidence and appreciation for local culture as well as environmental issues. This activity successfully strengthened the relationships between institutions and reinforced character education through a culturally relevant approach.

Tawangsari Hamlet, Tejosari Village, Ngablak District, Magelang Regency, faces serious waste management challenges, reflected in the high daily waste production and the inactivity of waste banks post-COVID-19. To address this issue, the Tidar University Community Service Program (KKN) was implemented, aiming to improve environmental cleanliness through active community participation. This program also supports the achievement of the "Climate Action" goal in the Sustainable Development Goals (SDGs), which focuses on combating climate change caused by air pollution and reducing environmental pollution. The method used in this program is Participatory Action Research (PAR), which is oriented towards community empowerment by involving all stakeholders in every stage of implementation. The activity began with a series of observations to understand the condition of waste management in the community. Then, a waste management tool was created in the form of a smoke-free waste incinerator, which aims to manage inorganic waste in an environmentally friendly manner. In addition, trash bins to facilitate waste sorting at the household level were also provided. Socialization and mentoring for the community, especially youth organizations, were carried out to introduce and educate them on the correct use of incinerators and waste sorting. A demonstration of incinerator use was also conducted with the community, which proved to increase understanding and active participation. The implementation of the incinerator and waste sorting facility demonstrated that these measures were effective in addressing the waste problem in Tawangsari Hamlet and contributed to a cleaner and healthier environment. Furthermore, the program successfully raised environmental awareness among the Tawangsari Hamlet community. Through direct involvement in the waste management process, residents not only gained new knowledge about the importance of waste sorting but also experienced the direct benefits of implementing smoke-free incinerator technology.Keywords: waste management, low-smoke incinerator, Climate Action, SDGs, community empowerment, environmental pollution, Magelang Regency

During storage and before consumption, grains often experience a decline in quality, nutritional content, and cleanliness due to pest attacks. Botanical insecticides are considered an alternative method to reduce dependence on harmful chemical pesticides. This study aimed to evaluate the effectiveness of three concentrations of silver nanoparticles (AgNPs) synthesized from the leaves of Cymbopogon citratus against Cadra cautella (Walk.) (Lepidoptera: Pyralidae) and their potential as biological control agents. The selection of C. cautella as the test organism was based on the limited number of studies examining this pest. The AgNPs used were synthesized through an eco-friendly method, and their optical and physical properties were analyzed using UV-Vis spectroscopy. The results demonstrated that AgNPs synthesized from C. citratus extract showed high effectiveness in controlling the eggs and second instar larvae of C. cautella. Egg mortality reached 80.3% at a concentration of 40 μg/ml after 24 hours of exposure, followed by 72.9% at 30 μg/ml, and 65.8% at 20 μg/ml. In contrast, the control group showed no egg mortality. Similarly, larval mortality rates were 74.9%, 65.8%, and 60.2% for concentrations of 40 μg/ml, 30 μg/ml, and 20 μg/ml, respectively. These findings indicate that higher concentrations of AgNPs lead to greater mortality in both eggs and larvae. This study highlights the potential of green-synthesized AgNPs from C. citratus leaves as an effective and eco-friendly biopesticide. Their significant impact on egg and larval mortality suggests that they can be developed as an alternative pest control strategy in stored grains, thereby reducing reliance on conventional chemical pesticides that are detrimental to human health and the environment. Further research is recommended to explore their long-term efficacy, safety, and integration into sustainable grain storage management.

Pesidi Village, located in Grabag Subdistrict, Magelang Regency, is a highland region with promising potential in agriculture and livestock, particularly sheep farming. However, one of the major challenges faced by local farmers is the limited availability of forage during the dry season, coupled with the low utilization of agricultural by-products such as rice straw. These constraints often hinder livestock productivity and pose risks to feed security. To address this issue, a community service program was conducted with the aim of introducing and demonstrating local-based feed processing technologies, including silage, ammoniation, and Urea Mineral Block (UMB) production. The activity was implemented in several stages: problem identification, socialization, education, training, and monitoring of farmer implementation. Through this participatory approach, farmers were given hands-on training and practical guidance on processing alternative feed sources to ensure the availability of nutritious and sustainable livestock feed. The results showed that farmers began adopting UMB as a feed supplement due to its practicality and visible benefits in maintaining livestock health and productivity. However, silage and ammoniation methods were not yet widely adopted, mainly due to limited experience, lack of supporting equipment, and the perception that the processes were relatively complex. Despite these challenges, the program succeeded in raising farmer awareness of the importance of feed diversification and the optimization of agricultural waste. The training provided valuable insights into how the integration of silage, ammoniation, and UMB can increase feed efficiency, reduce dependency on fresh forage, and support sustainable livestock management. The implementation of these three technologies holds significant potential to enhance sheep farming productivity in rural highland communities, while simultaneously strengthening food security and supporting environmentally friendly agricultural practices.

Traffic congestion in Jakarta has become a serious problem, affecting various aspects of life, such as time efficiency, environmental quality, and economic productivity. As one solution to overcome this problem, the Jakarta government is developing a mass public transportation system, including the Light Rail Transit (LRT). The LRT is expected to reduce congestion by providing a more efficient and environmentally friendly transportation alternative. In the process of planning and optimizing the LRT system, discrete mathematics, particularly graph theory, plays a very important role. Graph theory is used to model the LRT station network and track, with vertices representing stations and edges representing connecting lines between stations. With this model, various analyses can be performed to optimize the LRT line, such as finding the shortest path between two stations or evaluating the connectivity between existing stations. The use of graph theory allows the identification of more efficient routes, resulting in faster travel and reduced passenger waiting times. In addition, graph theory also plays a role in optimizing the LRT route by minimizing the number of transfers between stations or avoiding passenger congestion at certain stations. With proper route and network optimization, the LRT can make a significant contribution to reducing traffic congestion in Jakarta. Furthermore, the development of an efficient public transportation system also supports improved air quality and reduces reliance on private vehicles. Overall, the application of graph theory in LRT system planning is a strategic step towards creating more efficient and sustainable transportation in large cities like Jakarta. Beyond route optimization, graph theory is also very useful in analyzing route capacity and passenger distribution along the LRT system.

The problem of household organic waste management, especially kitchen waste, is still an environmental challenge that has not been handled optimally. In fact, this waste has great potential to be used as environmentally friendly products. One solution that can be applied is the manufacture of eco-enzymes, which are fermented liquids from organic waste that function as a substitute for synthetic chemicals in various household and agricultural purposes. This community service activity aims to increase the awareness and skills of residents in managing organic waste through the creation of eco-enzymes as a tangible form of applying the 3R (Reduce, Reuse, Recycle) principle. The activity was carried out in Kedu Village by involving PKK women, PSRT members, the Farmer Women Group (KWT), and housewives. The methods used include counseling on the impact of household waste and the benefits of eco-enzymes, as well as direct practice of making eco-enzymes accompanied by Mrs. Faila and students of the Real Work Lecture (KKN) of Tidar University. The implementation process includes sorting kitchen waste, mixing fermentation ingredients, and monitoring yields during the incubation period. The results of the activity show that the community is able to understand the concept and techniques of making eco-enzymes well. The active participation of residents in hands-on practice reflects increased knowledge and skills in independent organic waste management. In addition, this activity encourages the formation of new sustainable habits in utilizing household waste, while reducing dependence on synthetic chemicals. Thus, this service makes a positive contribution to environmental conservation efforts and local community empowerment through educational and applicative approaches.

Bullying is a persistent social issue frequently found in school settings and remains a concern in many countries. This study was initiated based on observations at SMPN 17 Pekanbaru, where numerous students were found to have experienced bullying. The purpose of this community service program was to introduce and promote a digital reporting platform for junior high school students, designed to be safe, interactive, and evidence-based, thereby enabling victims or witnesses to report incidents more easily. The methods applied included socialization, practical demonstration, and evaluation, involving 40 students as participants in the program. The intervention introduced the “BeSafe” website, which aims to provide a secure and user-friendly channel for reporting bullying anonymously and independently. The findings indicate that the website achieved a usability score of 82.2%, categorizing it as highly feasible and appropriate for use among adolescents. Furthermore, BeSafe was able to offer comfort, security, and accessibility for students in addressing bullying cases. An evaluation carried out one month after the program revealed that 20 bullying complaints had been successfully submitted through the platform, showing its effectiveness in encouraging students to speak up and utilize digital solutions without fear of exposure. In conclusion, the BeSafe platform is proven to be suitable as a medium for reporting bullying cases and holds significant potential to support preventive measures in schools. Beyond serving as a reporting tool, it can also act as an educational and protective medium that fosters a safer, more inclusive, and supportive school environment, ultimately contributing to the broader efforts of reducing bullying and enhancing students’ psychological well-being.

Pogalan Village in Pakis District, Central Java, is known as a horticultural agricultural center, with abundant vegetable production every year. However, behind this potential, this village faces a serious problem in the form of large amounts of organic waste generated from harvest residue and agricultural processing. Waste that is not managed properly has the potential to cause environmental pollution, reduce the village's aesthetics, and become a source of disease spread. To address these problems, the Tidar University Community Service Program (KKN-50) Team conducted a socialization activity for Black Soldier Fly (BSF) maggot cultivation as an environmentally friendly and economically valuable organic waste management solution. BSF maggots have been proven to decompose organic waste by up to 60% in a short time and produce useful by-products, such as dried maggots as high-protein animal feed and kasgot (used maggots) that can be used as organic fertilizer. The activity was held on July 31, 2025, at the Pogalan Village Hall, with the main participants being PKK mothers as agents of change at the household and community levels. The implementation method included initial observation of the village's potential and problems, creation of a maggot cultivation prototype, theoretical material outreach, and live demonstrations of the cultivation process. The material provided covered the BSF life cycle, cultivation techniques, selection of growing media, maggot population management, and utilization of cultivation products. The results of the activity showed high enthusiasm from participants, as reflected in the many questions and discussions during the training session, as well as their increased understanding of the benefits and techniques of maggot cultivation.

Natural resource management in Paccellekang Village, which includes rice paddies, plantations, and teak trees, remains suboptimal despite its significant potential, particularly the abundant wood waste. This wood waste largely originates from agricultural activities, plantations, and small-scale wood processing. Currently, this waste is often simply burned or dumped, potentially polluting the environment and causing air pollution. However, if managed properly, wood waste can be transformed into high-value products that can provide financial benefits to the community. This community service activity aims to empower farmer groups through training in processing wood waste into marketable products such as charcoal, liquid smoke, and wood flour. These products not only have economic value but are also useful in various sectors, for example, liquid smoke as a natural preservative, charcoal as an environmentally friendly fuel, and wood flour as an industrial raw material. The program implementation method uses a structured approach that includes initial observations to identify potential partners and needs, outreach to provide a comprehensive understanding of the program's objectives, and training in wood waste processing technology. Furthermore, intensive mentoring and evaluation of implementation results are provided to ensure program sustainability. The results demonstrated that the farmer group members understood the concept of productive wood waste management and demonstrated high enthusiasm for developing innovative products. This program successfully improved the community's skills in utilizing local resources while reducing the negative impact of waste on the environment. Thus, this activity contributed to increasing community income and supporting sustainable economic development in Paccellekang Village.

This study aims to utilize data mining techniques, specifically the K-Nearest Neighbors (KNN) algorithm, to classify leaf diseases in sugarcane (Saccharum officinarum). Early and accurate detection of leaf disease types is a crucial step in prevention and control strategies, thereby reducing potential crop losses caused by pathogen attacks. Leaf diseases in sugarcane, such as leaf scald, rust, and mosaic virus, are known to affect photosynthesis, inhibit growth, and reduce the quality and quantity of sugarcane produced. The classification process in this study was carried out through image analysis of infected sugarcane leaves, where features such as color, texture, and shape were extracted using digital image processing techniques. The KNN algorithm was chosen because of its non-parametric nature, ease of implementation, and its ability to provide accurate classification results even with limited data size. The working principle of KNN is to determine the class of a new sample based on the majority class of its k nearest neighbors in the feature space, making it very suitable for the case of leaf disease image classification. In addition to building a classification model, this study also examines disease prevention strategies based on the identification results. These strategies include the use of disease-resistant sugarcane varieties, the implementation of appropriate planting patterns, land moisture management, regular plantation sanitation, and the measured and environmentally friendly use of pesticides or fungicides. Model performance evaluation was conducted using accuracy, precision, recall, and F1-score metrics to assess model effectiveness across various data scenarios. The results of this study are expected to not only contribute to the development of decision support systems for farmers and related parties but also support the application of artificial intelligence-based technology in the agricultural sector.

This community service activity was carried out in Dahu Village, Pandeglang Regency, with the main objective of introducing and implementing biopore infiltration hole technology as a simple and environmentally friendly solution to address waterlogging and organic waste management. Biopores are small-diameter vertical holes dug into the ground and then filled with organic waste, such as dry leaves, vegetable scraps, or food scraps. This organic waste will naturally decompose through a decomposition process, producing compost that is useful for fertilizing the soil. Furthermore, the presence of biopore holes can improve the groundwater absorption capacity, thereby reducing the risk of waterlogging and minor flooding around residential areas. During the implementation, we as students not only provided theoretical explanations through socialization sessions but also actively participated directly in the field. Together with residents, we practiced making biopore holes, starting from the stages of preparing tools and materials, the process of drilling the soil, and filling the holes with organic waste. This practical activity was designed to help the community understand the steps for making biopores independently and utilizing them sustainably. The results of the activity showed an increase in community understanding and awareness of the importance of easy, affordable, and beneficial waste management. The community is beginning to realize that waste processing does not always require large costs or complicated technology. Biopore holes have been proven effective in accelerating rainwater absorption, reducing household waste volume, and improving soil fertility. Beyond the environmental impact, this activity also strengthens relationships between students and villagers through the collaboration established during the biopore construction process. Thus, this program is expected to be the first step towards a cleaner, healthier, and more sustainable village.

This research aims to design and build a web-based syar'i clothing inventory information system at Umama Gallery Yogyakarta. The background of this research is based on the problem of inventory management which has been done manually, which often causes obstacles such as delays in stock information, potential recording errors, wasted paper, and difficulties in preparing inventory reports quickly and accurately. To overcome these problems, a web-based information system was developed by referring to the Software Development Life Cycle (SDLC) Waterfall model, which includes the stages of planning, needs analysis, design, implementation, and testing. Research data was obtained through interviews with store managers and literature studies to support the analysis and design of the system. The implementation results show that the inventory information system built is able to simplify the process of recording and monitoring inventory in real-time, thereby helping to reduce the potential for recording errors and speeding up the reporting process. In addition, this system also reduces dependence on physical documents, making it more environmentally friendly and efficient in the use of resources. Available features include data management of goods, suppliers, users, incoming and outgoing goods transactions, and user account management. The integration of these features supports comprehensive inventory management, improves operational efficiency, and facilitates management in making accurate, data-driven decisions. With this system, Umama Gallery Yogyakarta has gained an effective, reliable, and integrated tool to support smooth operations and more modern and professional inventory management. Similar systems have the potential to be implemented in similar businesses to improve inventory management quality and competitiveness in the digital age.

This research is motivated by the suboptimal strategy of the Pangandaran Regency Tourism and Culture Office in supporting sustainable tourism development. Several problems identified include the lack of optimal management of facilities and infrastructure, such as waste management, and inadequate transportation facilities. Furthermore, tourism promotion has not been carried out in a sustainable and measurable manner, compounded by the absence of a Regional Promotion Agency. Human resources (HR) in the tourism sector also still lack a comprehensive understanding of the concept of sustainable tourism, which is a major challenge in implementing this policy effectively. The purpose of this study was to determine the strategies implemented by the Pangandaran Regency Tourism and Culture Office in developing sustainable tourism. The method used was descriptive qualitative with data collection techniques through observation, interviews, and documentation. Informants in this study consisted of government elements, communities, and tourism business actors. The results showed that the strategies implemented by the Pangandaran Regency Tourism and Culture Office encompass four dimensions of strategic management: environmental monitoring, strategy formulation, strategy implementation, and evaluation and control. However, the strategies that have been implemented have not been optimal. Several efforts have been made, including increased training based on local potential, technology education, the formation of promotional groups, and regular activity evaluations. However, major challenges remain: strengthening coordination between various stakeholders and improving natural resource management and more environmentally friendly supporting facilities. This study illustrates the need for strategic and policy adjustments to optimize sustainable tourism development in Pangandaran Regency, with a focus on increasing understanding and involvement of the community and businesses, as well as optimizing infrastructure and promoting more planned and measurable initiatives.

Environmental character education from an early age is a strategic step in developing a generation that cares about the natural world. Instilling this value is crucial in concrete ways so that children can understand and directly experience the benefits of protecting the environment. One effort undertaken is through a simple hydroponic learning activity involving children from TKS Kartika V 16. The activity was held once at the Samarinda State Agricultural Polytechnic with the support of lecturers as resource persons. Through a hands-on learning method, the children were introduced to how to grow lettuce and bok choy using a simple hydroponic system. The learning process included an introduction to tools and materials, an explanation of the planting stages, and plant care. Observations throughout the activity showed high enthusiasm among the children. They were actively involved, from preparing the planting medium, planting the seeds, to providing air and nutrients to the plants. This activity fostered a sense of care and responsibility for the plants they grew themselves. Furthermore, the children's fine motor skills were also demonstrated through activities such as arranging the planting medium, sowing the seeds, and assembling the hydroponic equipment. This activity not only developed individual skills but also taught social values such as cooperation and mutual assistance. Children learn to work in groups, help each other, and appreciate each other's roles in the planting process. This hands-on, hands-on approach has proven effective in strengthening environmental awareness in a fun and contextual way. Therefore, environmental education through hydroponics can be a practical, inspiring, and easy-to-implement learning medium for young children, while also serving as a concrete example of how character education can go hand-in-hand with the introduction of environmentally friendly technologies.

Dependence on fossil fuels, such as gasoline and diesel, has become a global issue that affects environmental sustainability and energy security. Increasing greenhouse gas emissions, decreasing natural resource reserves, and instability of global energy prices encourage the need for innovation in motor vehicle fuel systems. This study aims to assess fuel efficiency and engine performance on a 110 CC motorcycle with a standard compression of 10.7:1, by utilizing a mixture of RON 90 gasoline and alcohol. The main focus of the study is to compare the effect of varying alcohol content on engine power output, with mixtures of E12.5, E17.5, and E22.5. The method used is an experimental method with three variables, namely the independent variable (type and content of fuel mixture), the dependent variable (engine power), and the control variables (engine condition, temperature, and testing method). Testing was carried out using a combination of iridium spark plugs and standard spark plugs, as well as variations in Pilot Jet sizes 34 and 35 on aftermarket carburetors. Each combination was tested to determine its effect on the maximum engine power. The results showed that a blend of E12.5 fuel with Pilot Jet 35 and iridium spark plugs produced the highest power output compared to other tested combinations. This combination was proven to optimize combustion in the combustion chamber, thereby improving engine efficiency and performance. Conversely, increasing the alcohol content above E12.5 did not provide a significant increase and even tended to decrease power due to alcohol's lower calorific value than gasoline. The conclusion of this study is that the use of an aftermarket carburetor with Pilot Jet 35 and iridium spark plugs, combined with an E12.5 fuel blend, can be an effective alternative for improving the performance of a 110cc motorcycle. These findings are expected to serve as a reference for the development of more efficient and environmentally friendly blended fuel technology.

The use of technology in education is essential, particularly in creating digital teaching materials. This Community Service (PKM) activity aimed to introduce teachers and educators to the process of creating e-modules using Canva, a user-friendly tool with templates, graphics, and features for designing interactive and visually engaging teaching materials. The training provided hands-on experience, enabling participants to create curriculum-aligned e-modules, enhancing both their teaching materials and student engagement. The goal was to equip educators with the skills to develop innovative, digital-friendly materials that cater to various learning styles. During the training, participants integrated multimedia elements like images, videos, and text to make the learning experience more interactive. Emphasis was placed on incorporating technology in both physical classrooms and online learning environments, improving the overall dynamic of lessons. The training also helped educators gain a deeper understanding of Canva as a versatile tool for educational purposes. Results showed significant improvement in participants' confidence and ability to use Canva effectively to create engaging and pedagogically sound materials. Many expressed that the skills gained would help them incorporate creative and interactive elements into their lessons, fostering a more dynamic learning environment. This PKM activity successfully empowered participants to enhance their digital competencies and adapt to the evolving educational landscape. It contributed to improving the quality of education, ensuring educators are better prepared to navigate the digital age and meet the needs of modern learners. Furthermore, the training emphasized continuous learning and adapting to new technological tools to improve teaching strategies and learning outcomes

This research explores the engineering and performance evaluation of 17-4 PH stainless steel as a potential material for turbine blades in geothermal power plants (PLTP). To promote renewable energy innovation in industrial engineering, this study focuses on improving material reliability through microstructural optimization and mechanical property control. The material was produced using the investment casting method at PT SPVMB and then subjected to four heat treatment variations: H900, H1025, AVG (average), and as-cast conditions, with reference to ASTM A747 standards. Mechanical and corrosion characterization were performed through hardness and tensile tests, electrochemical corrosion analysis using geothermal water from the Dieng PLTP, and microstructural observation using an optical microscope. The results showed that the H900 condition had the highest hardness and yield strength (48.46 HRC and 939.25 MPa), but its corrosion rate was relatively high. In contrast, the H1025 heat treatment provides balanced mechanical strength (43.88 HRC and 860.91 MPa) with the lowest corrosion rate (0.027 mm/year), supported by a uniform tempered martensite structure. These findings indicate that heat treatment optimization significantly improves the suitability of 17-4 PH stainless steel for sustainable geothermal applications. The H1025 condition meets all the requirements for geothermal turbine blades, including hardness, strength, and corrosion resistance, potentially extending component life and reducing maintenance costs. Furthermore, the results of this study strengthen the agenda for developing durable, environmentally friendly materials to support renewable energy systems. This study also provides practical insights for industry in selecting the optimal heat treatment that combines mechanical performance and corrosion resistance in extreme geothermal environments.

This study aims to examine the use of cattle waste as organic fertilizer to minimize agricultural operational costs in Mrawan Village, Tapen District, Bondowoso Regency. Cattle waste, particularly manure, is an abundant local resource that has not been optimally utilized by the local community. The majority of farmers in the village still rely on chemical fertilizers, which are relatively expensive and have a negative impact on long-term soil health. Therefore, this program is designed to provide a sustainable alternative solution through an educational approach and community empowerment. The methods used in this activity include outreach, technical training, and direct assistance in the process of making organic fertilizer from cow manure. Education focuses on simple fermentation techniques, the composition of natural additives, and appropriate fertilizer application methods. Farmers are actively involved in every stage of the activity, so they become not only beneficiaries but also agents of change in environmentally friendly agricultural practices. The results of the activity indicate that the use of organic fertilizer from cattle waste can reduce the cost of purchasing chemical fertilizers by up to 40% in a single planting season. In addition, organic fertilizer has been shown to increase soil fertility, improve soil structure, and support healthier plant growth. Environmental impacts are also reduced, as livestock waste management is more controlled and does not pollute water or air sources. Therefore, utilizing cattle waste as organic fertilizer not only reduces environmental pollution but also provides an economic and ecological solution that benefits local farmers. This program is expected to become a model for empowerment that can be replicated in other areas with similar characteristics.

This paper explains the implementation of the creation of a screenplay for a feature video entitled "Mother for the Earth" with a focus on the application of parallel structure in four scenes: teaser, conflict, climax, and catharsis. Each scene serves to build narrative tension, strengthen the central theme, and generate a deeper understanding of the importance of environmental awareness. The parallel structure is applied to show a strong contrast between two mothers with different lifestyle backgrounds—one mother who adopts an environmentally friendly lifestyle and the other mother who is less concerned with life's desires. In the teaser scene, the scenario presents two main characters living in different worlds, arousing the audience's curiosity about the differences in the two mothers' views and attitudes towards the world around them. In the conflict scene, both face challenges and dilemmas related to their chosen lifestyles. The climax scene shows the culmination of their conflict, while the catharsis scene provides a resolution, where one of the mothers finally realizes the importance of small changes in daily habits that can have a big impact on the environment. This work aims to educate the audience, especially families and housewives, about the importance of raising environmental awareness from an early age in children. Through the use of parallel structure, the message about simple behaviors that have a significant impact on the environment becomes more powerful and compelling, inspiring the audience to take positive action in their daily lives for a better planet. The use of parallel structure in this scenario also serves to demonstrate how the two mothers, despite coming from different backgrounds, can share the same goal of preserving the earth.

Dengue Hemorrhagic Fever (DHF) remains a significant public health challenge in Indonesia, with the increasing prevalence of cases every year. One of the key methods of controlling the spread of DHF is to target the vector, Aedes aegypti mosquitoes, by eradicating their larvae. However, the widespread and continuous use of chemical larvicides has raised concerns regarding the development of mosquito resistance and environmental pollution. This community service activity aimed to provide students at Duta Karya Vocational High School with knowledge and practical skills to use natural, eco-friendly alternatives for controlling mosquito larvae, focusing on papaya seeds (Carica papaya) and alum as natural larvicides. The methods for this activity included interactive counseling, a demonstration on how to produce larvicides using papaya seeds and alum, and an engaging question-and-answer session. Thirty 12th-grade students from the Pharmacy class participated in this activity. The results revealed that the activity was highly effective in increasing the students' understanding and practical ability to independently create and apply natural larvicides. The students expressed a high level of enthusiasm and interest in the topic, actively participating in the discussions and demonstrations. As a result of this community service, the school has expressed interest in incorporating this activity into its School Health Unit (UKS) work program, which will further promote the use of natural, sustainable methods for controlling mosquito populations. The students, now equipped with the necessary skills, are ready to become "jumantik" cadres—community health volunteers responsible for monitoring and preventing mosquito larvae development. This initiative also raised awareness about utilizing organic waste, such as papaya seeds, to create valuable products for the prevention of DHF.