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Waste from used Polypropylene (PP) and High Impact Polystyrene (HIPS) plastic is problematic in its management. The purpose of this research is to obtain the fatigue life of a mixture of used PP and HIPS plastics in its pure plastic. The research method is through the stages of mixing pure PP and 50% volume of used PP, pure HIPS and 50% volume of used HIPS, injection molding of R.R. Moore standard fatigue test specimens for pure PP, pure HIPS, pure PP + used PP, and pure HIPS + used HIPS, checking the straightness and smoothness of the molded specimen surface, fatigue testing with increasing serial loads, analysis of the bending stress curve (S) against fatigue life (N). The results showed that mixing used PP and used HIPS in pure plastic affected the fatigue life at the test speed (n)=2100 rpm for recycled PP was 9.84% shorter than pure PP, and at n=1600 rpm for recycled PP it was 9.32% shorter than pure PP, while at n=2100 rpm for recycled HIPS it was 4.45% shorter than pure HIPS, and at n=1600 rpm for recycled HIPS is 4.77% shorter than pure HIPS, while the fatigue life of pure PP is 1627704 cycles and the fatigue life of pure HIPS is 1291636 cycles or the fatigue life of pure HIPS is 20.65% shorter than pure PP, the implication of which is that the addition of used PP and used HIPS reduces the fatigue life to 9.84% for PP and 4.45% for HIPS.

This study aims to describe the implementation of ecobrick activities as an environmentally friendly initiative and as a strategy to enhance fine motor development in early childhood aged 4-6 years in Jatirejo Village, Pasuruan Regency. This research employed a descriptive qualitative approach using observation, interviews, documentation, and hands-on ecobrick practice. The findings indicate that the ecobrick process-which includes collecting plastic waste, washing, drying, cutting, inserting plastic pieces into bottles, and compressing the contents-effectively improves children’s fine motor skills, particularly in hand-eye coordination, finger strength, accuracy, and cutting ability. Children demonstrated positive responses, including high enthusiasm, curiosity, and increased awareness of environmental preservation. The activity also strengthened children’s social development through cooperation, communication, and shared responsibility. Overall, ecobrick activities function not only as an innovative waste-management solution but also as an educational medium that holistically supports child development and instills environmental awareness from an early age.

This study aims to describe the integration of environmental education into early childhood learning activities at TK Prawidya Dharma Demulih through the use of recycled waste as a creative and educational learning medium. The study was motivated by the low environmental awareness among children and the limited use of environmentally themed learning media in the institution. A qualitative descriptive approach was applied using the ADDIE development model, consisting of the stages of analysis, design, development, implementation, and evaluation. The findings reveal that employing a recycled-material spinner game enhanced children’s understanding of environmental cleanliness and encouraged environmentally responsible behavior through playful learning activities. The children showed strong enthusiasm, participated actively, and began to develop habits related to cleanliness after the learning sessions. Moreover, teachers gained new insights into designing innovative and functional learning media using discarded materials. Overall, the use of recycled waste as an educational tool proved effective in fostering environmental awareness while supporting creativity and meaningful learning experiences for early childhood learners..

Fore Coffee's #FOREsponsible campaign prioritizes the principle of environmental conservation. They collaborate specifically with a company called Robries, which processes plastic waste into valuable products such as furniture and home decor. This study aims to determine how much influence the #FOREsponsible public relations campaign message has on Fore Coffee's brand image. The theory used is the Campaign Message theory (variable X) in accordance with Venus's research (2019), with indicators including Message Content, Message Structure, and Message Frame. Brand image (variable Y) is measured based on the dimensions of strength, favorability, and uniqueness in accordance with Keller's theory (2013). This study uses a quantitative approach with a survey method, namely by distributing questionnaires to 94 samples selected using the Slovin formula, probability sampling techniques, and simple random sampling methods. The collected data were then analyzed using simple linear regression techniques. The results of the analysis show the influence of variable X (Campaign Message) on variable Y (Brand Image). From the results of simple linear regression, the R Square value (coefficient of determination) was obtained at 63.3%, which means that approximately 63.3% of the influence on Fore Coffee's brand image comes from the #FOREsponsible campaign message on Instagram. While the remaining 37.7% is influenced by other factors not covered in this study. This proves that the campaign message has a significant influence on Fore Coffee's brand image.

 Communicable diseases remain one of the leading public health burdens in Indonesia, particularly in densely populated residential areas and communities with inadequate sanitation. Poor housing conditions including insufficient ventilation, overcrowding, excessive humidity, inadequate lighting, and improper waste and wastewater management have been shown to increase the risk of respiratory infections, diarrhea, and other environment-related diseases. This literature review aims to identify effective environmental health strategies for preventing communicable diseases by synthesizing findings from 11 scientific articles published between 2014 and 2025. The review shows that basic sanitation, indoor air quality, waste management, and the implementation of the Community-Based Total Sanitation (STBM) program are key determinants in reducing disease incidence. Additionally, successful interventions depend heavily on clean and healthy living behaviors (PHBS) and active community participation. These findings highlight the importance of a comprehensive approach that integrates physical environmental improvements, health education, and community empowerment to create healthy settlements and sustainably reduce the risk of communicable diseases.

Mine disposal materials such as tailings, overburden, and waste rocks are critical components in mining operations that require comprehensive understanding of their geotechnical properties to ensure stability and safety of storage facilities. This literature review aims to analyze the role of particle gradation and mineralogical composition in determining shear strength and compressibility of mine disposal materials, with particular focus on nickel mining. A sistematic literature review method was employed by analyzing 30 scientific publications from 2019-2025 obtained from various academic databases. The review findings indicate that particle size distribution (gradation) has significant influence on shear strength and compressibility, where materials with coarser gradation and higher coefficient of uniformity (Cu) exhibit greater shear strength and lower compressibility. Mineralogy, particularly clay mineral content, increases cohesion and microporosity but also increases compressibility under loose conditions. Studies on nickel mine waste demonstrate that ferronickel slag possesses favorable drainage characteristics suitable for rockfill material, while tailings require strict gradation control. In conclusion, comprehensive characterization integrating gradation parameters (Cu, Cc, D50) with mineralogical analysis (XRD, XRF) is essential for predicting mechanical behavior of mine disposal materials and designing safe storage facilities.

This research is motivated by the increasing amount of waste caused by high levels of public consumption, limited waste management facilities, and low environmental awareness. Lyfe With Less, an eco-friendly community, utilizes the function of Public Relations to deliver information and raise public awareness. This study aims to (1) identify the #SalingSilang campaign message conducted by Lyfe With Less, (2) examine the attitudes of Instagram followers of @lyfewithless toward the campaign, and (3) measure the influence of the #SalingSilang Public Relations campaign message on followers’ attitudes. The research applies the Campaign Message Design Theory, which includes message content, structure, and framing, as well as the Attitude Component Theory, which covers cognitive, affective, and conative aspects. A quantitative approach was used with a survey method by distributing questionnaires to 81 respondents selected randomly through probability sampling. The results show that the #SalingSilang campaign message received positive responses and had a significant and strong influence on followers’ attitudes. Within the Public Relations campaign message, the key message was found to be the most influential factor in the message content dimension, while in followers’ attitudes, the conative component showed the greatest change, particularly in reducing overconsumption and encouraging the optimal use of products.

Expansive clay soil is soil that can expand and contract significantly in response to changes in soil moisture content. This study used an experimental method to stabilize expansive clay soil using a mixture of gypsum waste powder, which was tested using the Atterberg test, the Unconfined Compression Strength test, and the California Bearing Ratio test with mixture variations of 0%, 10%, 20%, and 30%. The results showed that the addition of gypsum waste powder could reduce the expansivity level of the soil from a very high level of 42% to a moderate level of 20%, increase the value in the Unconfined test at a maximum mixture of 10%, and increase the value in the CBR test at a maximum mixture of 30%. Based on the above description, this study aims to determine the extent of the effect of gypsum waste powder on expansive clay soil on the bearing capacity and compressive strength of expansive clay soil.  

Household waste management is a significant challenge in creating clean, healthy, and sustainable residential areas. Dependence on manual monitoring methods often leads to delays in waste collection, waste pile-ups, and operational inefficiencies. This community service program implements a Smart Trash Monitoring Sistem (STMS) based on the Internet of Things (IoT) in Graha Panyindangan Estate, Indramayu. The system utilizes ultrasonic sensors and ESP32 to detect waste levels and sends real-time data to a dashboard accessible by residents and cleaning staff. The results of implementing STMS show improved efficiency in waste management, with waste collection being carried out on time based on accurate, real-time data. This system also reduces the need for manual inspections and encourages responsible waste management behavior among residents. In addition to technical benefits, there have been social changes, such as increased environmental awareness and the formation of new social norms within the community. The involvement of local leaders in supporting the system’s sustainability further strengthens the implementation of the smart living concept, resulting in a cleaner, healthier, and more sustainable residential environment in the long term.

Household waste management is a significant challenge in creating clean, healthy, and sustainable residential areas. Dependence on manual monitoring methods often leads to delays in waste collection, waste pile-ups, and operational inefficiencies. This community service program implements a Smart Trash Monitoring Sistem (STMS) based on the Internet of Things (IoT) in Graha Panyindangan Estate, Indramayu. The system utilizes ultrasonic sensors and ESP32 to detect waste levels and sends real-time data to a dashboard accessible by residents and cleaning staff. The results of implementing STMS show improved efficiency in waste management, with waste collection being carried out on time based on accurate, real-time data. This system also reduces the need for manual inspections and encourages responsible waste management behavior among residents. In addition to technical benefits, there have been social changes, such as increased environmental awareness and the formation of new social norms within the community. The involvement of local leaders in supporting the system’s sustainability further strengthens the implementation of the smart living concept, resulting in a cleaner, healthier, and more sustainable residential environment in the long term.

This community service activity aims to optimize the utilization of woodcraft waste and broken tiles in Tamansari Village through training in briquette charcoal production and effective marketing strategies. The wood waste, which has not been optimally utilized and has become an environmental issue, is expected to be processed into high-economic-value products. The conversion of waste into briquette charcoal is expected to reduce pollution while opening up new environmentally-friendly business opportunities. The implementation method includes socialization on the potential and benefits of briquette charcoal, technical training covering material preparation, carbonization process, mixing, molding, and drying, as well as assistance with marketing strategies both offline and digitally. Participants include local residents, small business owners, and craftsmen. The expected outcomes are an increase in the community's skills in processing waste into marketable products, the growth of new businesses based on alternative energy, and increased awareness of environmentally-friendly waste management. This program is expected to make Tamansari Village a model for creative, independent, and environmentally-conscious villages with strong competitiveness in the local economy.

This article discusses the application of service learning as an educational approach that supports the preservation of cultural heritage and the strengthening of sustainable tourism in Batu Caves, Kuala Lumpur, Malaysia. As one of the most important Hindu temple complexes in Southeast Asia, Batu Caves has become a symbol of cultural diversity and interreligious harmony. However, increased tourism activity has brought about various problems, such as environmental pollution, waste management issues, and the erosion of cultural values among visitors. To address these challenges, service-learning programs integrate academic theory with direct participation in the community, allowing students to actively engage in environmental conservation, cultural documentation, and the development of public education initiatives. Thru collaboration with temple managers, local communities, and tourists, students applied management concepts in real-world situations, including cleaning activities, maintaining tourist areas, developing educational materials on eco-tourism, and preserving traditional rituals thru cultural archiving. The implementation of this service learning not only enriches students' learning experiences but also raises public awareness about the importance of preserving Batu Caves as a sustainable cultural heritage site. Overall, this project demonstrates that service learning is a transformative pedagogical approach that connects academic goals with community development and cultivates future leaders who are socially responsible and culturally sensitive.

Air pollution and damage to the earth are central world problems and are threats that will occur if humans continue to cause damage to this earth. Pollution on earth is very clear is the increasing amount of organic and non-organic waste, in activities to meet the needs of society, the end result is waste, both waste generated from the needs of clothing, food and shelter, if not handled properly and correctly will threaten the survival of society and threaten the ecology in the world, Organic and non-organic waste must be handled with good management. Management as a tool for organizational management in a society is expected to play an important role in providing education and understanding to the community about the impacts and dangers caused by the increase in waste due to human activities, so that it can strengthen the culture and ethics of society in managing waste so that it will increase the creative abilities of society, creativity, taste and intention in managing waste. The type of research conducted by the author is included in the category of qualitative research literature study method researchers to collect and evaluate information from various previous studies, thus providing a comprehensive understanding of the subject under study.

Household waste management remains a critical challenge in creating clean and sustainable residential environments. Manual monitoring methods often lead to delayed waste collection, overflowing bins, and operational inefficiency. This community engagement program implements an Internet of Things (IoT)-based Smart Trash Monitoring SIstem (STMS) at Graha Panyindangan Estate, Indramayu. The sIstem utilizes ultrasonic sensors and ESP32 microcontrollers to detect the fill level of household waste containers and transmit data in real time to a user-accessible dashboard. The results demonstrate that the STMS provides accurate waste-level information, reduces manual inspections, enhances collection efficiency, and fosters data-driven behavior among residents. Social changes also emerged, including improved environmental awareness, new social norms, and the emergence of local leaders supporting sIstem sustainability. This program contributes to the realization of smart living in modern residential communities, ensuring better waste management, cleaner environments, and more sustainable practices for future generations. It also provides valuable insights into the role of technology in addressing environmental issues at the community level.

Waste has become a serious environmental problem in Indonesia, which continues to increase along with population growth. The issue of waste management poses serious challenges for the environment, especially in the process of separating organic and inorganic waste. In the field of computer vision, recognising the type and shape of waste through camera images remains a challenge due to variations in shape, colour, and complex lighting conditions. Therefore, this problem utilises Deep Learning technology, which is expected to be widely applied in Indonesia, especially in large cities with high waste volumes. This study aims to distinguish between organic and inorganic waste using the Convolutional Neural Network (CNN) method based on digital images. The developed CNN model was trained to recognise the visual patterns of each type of waste and tested to measure its accuracy. The test results show that the CNN-based classification system is capable of achieving an accuracy rate of 95%, thus proving the effectiveness of this method in supporting artificial intelligence-based automatic waste sorting systems.

The purpose of this activity is to socialize the implementation of biosecurity as an effort to prevent disease in cattle in Luhulely Village, Pulau Letti District, Southwest Maluku Regency. This activity was carried out using a socialization method involving beef cattle farmers and all Luhulely Village staff. The implementation of the activity was divided into 2 sessions, namely a material presentation session and an interactive discussion session. Some general steps in implementing biosecurity include the following: access management, animal movement control, cleanliness and sanitation, waste management, animal health monitoring, and vaccination. This socialization activity was attended by approximately 20 participants consisting of beef cattle farmers and several Luhulely Village staff. Several important things that can be concluded from the implementation of this activity are as follows: the majority of farmers showed an increased understanding of the importance of biosecurity after participating in the socialization, the farmers expressed their readiness to implement various biosecurity measures, such as quarantine of new livestock, waste management, and provision of adequate sanitation facilities in the livestock area, and several farmers requested further assistance regarding the implementation of more detailed biosecurity, including correct livestock vaccination techniques. The conclusion of this activity is that the socialization of biosecurity implementation on cattle farms is expected to increase farmers' awareness and understanding of maintaining livestock health and preventing disease transmission. Through proper biosecurity implementation, it is hoped that healthy, more productive, and sustainable livestock conditions will be created.

Plastic waste detection in indoor environments is an essential challenge in the development of intelligent cleaning systems and robotic automation. Small and medium-sized plastic debris is often difficult to identify using conventional methods due to variations in color, shape, and reflectance. This study proposes an image-processing-based approach that combines thresholding and contour detection techniques to improve the accuracy of detecting plastic objects on floor surfaces. The initial stage involves converting the image into a color space that is more stable under varying illumination, such as HSV or grayscale, to reduce the influence of lighting intensity. Subsequently, adaptive thresholding is applied to separate plastic objects from the background by using dynamic threshold values tailored to the image’s conditions. The segmentation results are refined through morphological operations such as opening and closing, enabling the removal of small noise and enhancing the clarity of object boundaries. The core stage of the system employs contour detection to extract object shapes and areas, allowing the identification of plastic waste based on size, perimeter, and specific geometric characteristics. Experiments were conducted under different lighting conditions and various floor types, and the results demonstrate that the proposed approach successfully detects plastic debris with satisfactory accuracy and relatively fast processing time. Therefore, this method is suitable for implementation in robotic cleaning systems, indoor cleanliness monitoring devices, and other computer vision applications requiring real-time and efficient object detection.

The implementation of the concept of sustainable fashion is an effort carried out by fashion players to create sustainable fashion products so as to reduce the impact of fast fashion. Forms of implementing the concept of sustainable fashion include the zero waste puttern cutting technique and the use of natural dyes. Cutting techniques without leaving scraps and liquid waste produced from the textile production process. The purpose of the study was to determine the process of implementing zero waste in ready to wear with ecoprint natural dye textiles. The data collection methods used are observation, documentation and literature methods. The analysis used in this study is qualitative data analysis. The process begins with creating ecoprint motifs using steam techniques and adding cibori motifs, the process of creating designs and planning the layout of the pattern components, and planning the layout of patterns on ecoprint materials, the cutting process, installing tricot, followed by the sewing process to unite the pattern components. The initial stage in this process is sewing the top. Conclusion of the process of applying the zero waste puttern cutting technique with ecoprin natural dye textiles is one of the visionary concepts where creating clothes starts from making motifs. with ecoprin natural dye textile is one of the visionary concepts where creating clothes starts from making motifs with natural dyes and continues with efforts to minimize fabric waste by applying the zero waste concept to the cutting pattern process and continues with the sewing process until completion, so that it can be used as a solution and reference in the fashion field for making clothes sustainably. Suggestions for applying the zero waste concept to be more optimal, the design of motif designs and pattern designs should always go hand in hand so that all motifs can be used and in accordance with the design to minimize fabric waste and dye waste.

Global economic developments show the acceleration of the adoption of circular business models, where resource efficiency and waste reduction are the main focuses to answer sustainability demands and SDGs targets. Although this trend is strengthening globally, MSMEs, especially those based on family businesses, are still lagging behind in their implementation, even though digitalization is increasingly opening up opportunities for operational optimization and innovation. The urgency of this research arises from the need to understand how the digital mindset and transformation of family business management can accelerate the readiness of MSMEs in implementing circular business practices. The novelty of this research lies in the integration of the three strategic concepts into a single analytical framework through the Systematic Literature Review (SLR), a perspective that has rarely been combined in previous studies. With the SLR method based on the PRISMA protocol, this study shows that MSMEs already have a strong foundation in the digital mindset, including technology readiness, innovation orientation, and adaptation of digital business models. Family business values have also been proven to support business continuity through knowledge transfer and long-term investment. However, the implementation of circular business practices is still weak, especially in resource cycle management, sustainable product design, and environmental impact measurement. The implication is that the synergy of digital mindset and family business governance can strengthen the transition of MSMEs to a circular economy that directly supports the achievement of the SDGs, especially in the areas of sustainable consumption-production and industrial innovation.

Nutritional problems in toddlers remain a public health challenge in Indonesia, including in Tarakan City, North Kalimantan. The 2018 Basic Health Research (Riskesdas) data shows a high prevalence of malnutrition, severe malnutrition, and stunting in toddlers, with data showing that based on the body weight index (BB/A) the prevalence of malnourished toddlers is 3.9% while 13.8% of toddlers are undernourished. Based on the height-for-age (H/A) index, there are 11.5% of toddlers with very short nutritional status and 19.3% of toddlers with stunted nutritional status. Meanwhile, based on the weight-for-height (BB/H) index, the proportion of very wasted children is 3.5%, undernourished children are 6.7%, and overweight children are 8% (Riskesdas, 2018). Because of these problems, early nutrition education efforts are needed. This community service activity aims to increase the knowledge of toddler mothers about the importance of balanced nutrition for children, especially through the use of UHT milk as a nutritional supplement, as well as strengthening the role of integrated health posts (Posyandu) in monitoring child growth and development. Thus, this community service activity contributes to raising public awareness of the importance of meeting toddler nutritional needs and is expected to support government programs to reduce the prevalence of stunting in Tarakan City.