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This community service activity aims to provide education about the use of shopping bags (totebags) from patchwork waste as an alternative to plastic bags to MSME business actors processed fish in Kampung Nelayan Desa Salira. The method used by the author in this activity begins with providing training on plastic bag waste, then also an introduction to the utilization of fabric waste that can be reused to make new products that are useful and ends with the handover of helanja bags to the business actors of processed fish MSMEs in Kampung Nelayan Desa Salira. The processed fish MSME products are in the form of payus fish amplang crackers, fish rolade, fish nuggets, fish meatballs made from fish, and in their sales require reusable shopping bags and have product selling value.

The population density in Surabaya City makes the needs of the community, one of which is transportation, high. Transportation has an important role in meeting the needs of the community in everyday life in the economic, socio-cultural and political fields. Unfortunately, this has led to traffic congestion. Thus, Surabaya City is trying to improve the public transportation system by launching environmentally friendly public transportation as an effort to implement a green economy, namely Suroboyo Bus. This research uses a qualitative method with a library research approach. Information was obtained from various institutional reports, scientific articles, websites, books, and related regulations. The focus of data acquisition sources is credible journal publishers. The results showed that congestion in Surabaya City was reduced due to the enthusiasm of the community to switch to public transportation compared to private vehicles to reduce greenhouse gas emissions. In addition, the Suroboyo Bus payment innovation by exchanging plastic bottles has succeeded in attracting the interest and awareness of some people in Surabaya City to manage plastic bottle waste, although there are still other complaints in the implementation of the policy. The role of Suroboyo Bus as an effort to improve the green economy can be said to be quite successful, but improvements still need to be made and the involvement of the government and the community so that Suroboyo Bus continues to be an environmentally friendly sustainable transportation.

A collection of shoes that are not neatly arranged often makes you lazy to tidy up and clean them, whereas the condition of scattered shoes can spoil the view and reduce the durability and functionality of the shoes themselves. On the other hand, plastic waste, especially plastic bottles, is increasing and becoming a serious problem for the environment. In an effort to reduce the impact of pollution and utilize unused items, this study proposes a solution in the form of making a shoe rack from used plastic bottle waste. The use of plastic bottles not only reduces the amount of waste but also provides a practical solution for more organized shoe storage, especially for students who need efficient and environmentally friendly shoe storage space. The method used in this study is (R&D), which aims to develop a shoe rack product and test its effectiveness and feasibility. The test results show that this shoe rack can accommodate 12 pairs of shoes with a maximum strength of 5.5 kg per rack consisting of three levels. The use of 69 plastic bottles for the base and 24 bottles for the walls provides a large enough capacity to store shoes. Based on the test results, this shoe rack not only functions as a place to store shoes, but also as an effort to reduce plastic waste and support environmental sustainability. This product can also be used as an example in learning product design, recycling, and entrepreneurship.

This research aims to provide new innovations in handmade products or knitted products. Apart from that, this research also aims to help UMKM in developing their handmade bag business. The methods we use in this activity are research, discussion, training, development and evaluation. The results of this research show an increase in product quality, creativity and sales through digital and offline marketing strategies. Collaboration with partners makes a big contribution, especially in practical training and product marketing. Even though there are challenges such as manual production processes and market competition, innovation and the right marketing strategy can help this product remain competitive and have the opportunity to develop sustainably. We hope that UMKM players can develop the handmade bag or knitted bag business by developing new innovations while maintaining product quality.

Plastic waste is one of the sources of problems for all living things, especially humans and their environment. So there is a need for awareness of this adverse impact. Measures such as the use of environmentally friendly alternatives, plastic reduction education, and government policies to limit the production and distribution of single-use plastics are increasingly being promoted. By implementing these alternative measures, it can have an impact on keeping our earth clean. The method used in this research is normative juridical, this research leads to the scientific field of law, regulations, and provisions that apply to a problem. In this case, a review of laws and regulations relating to plastic waste reduction policies is carried out. Meanwhile, the meaning of normative legal research is research conducted by looking at any library material as secondary data and is also considered as library legal research. According to the Jambeck Research Group report in 2015, Indonesia ranks second after China in the contribution of plastic waste to the ocean, with an estimated 3.2 million tons of plastic waste per year, and around 640,000-1.29 million tons end up at sea. By 2024, plastic waste in Indonesia is projected to reach around 13.98% of the total national waste generation, with an estimated volume of around 9.9 million tons. As a wise individual, we should not only rely on government policies in dealing with plastic waste, but each individual must be educated in order to create awareness of the dangers of the impact caused by the waste of plastic use.

The issue of plastic waste has become a global environmental challenge, with Indonesia being one of the largest contributors. This study aims to analyze the business opportunity of eco-friendly custom tote bags as an innovative solution to reduce plastic waste in society. The research adopts the Business Model Canvas (BMC) framework to design strategies for a business that encompasses nine key elements. Findings reveal that custom tote bags made from eco-friendly materials such as muslin and canvas offer added value through personalized designs, effective digital marketing, and market segmentation targeting environmentally conscious youth. This study provides guidance for entrepreneurs to capitalize on the market potential of eco-friendly products and suggests optimizing social media for marketing efforts.

The issue of waste, especially plastic waste, has become a crucial problem in Indonesia, leading to ecosystem damage and environmental pollution. SDN 2 Cikalang, located in Tasikmalaya City, is one of the schools that has not yet implemented optimal plastic waste management. An Ecobrick outreach program was conducted to enhance the knowledge of fifth-grade students about plastic waste management through Ecobrick innovation. An Ecobrick is a plastic bottle filled tightly with plastic waste, which can be used as a construction material to replace bricks. This study aims to evaluate the effectiveness of the Ecobrick outreach program in increasing students' knowledge of plastic waste management. The research methods included pre-test, material delivery, hands-on practice, and post-test. The evaluation results showed a 45% increase in students' knowledge, with a significant difference between pre-test and post-test scores (p value = 0.000). This indicates that a hands-on education approach is effective in improving students' understanding of plastic waste management through Ecobrick.

The issue of plastic waste in Indonesia has reached a critical level, with an annual production of 64 million tons. To address this challenge, an educational approach that integrates practical and meaningful aspects, especially for the younger generation, is necessary. This study implements Project-Based Learning (PjBL) with an upcycling approach to enhance students' environmental awareness, creativity, and entrepreneurial spirit. The methods used include socialization and hands-on practice, where students are encouraged to create economically valuable products from plastic and paper waste. This activity involved 36 teenagers divided into groups to produce upcycled products such as plant pots and pencil holders. The results of this project indicate an increase in students' awareness and skills in waste management, as well as the creation of upcycled products with market value. This study further confirms that project-based learning can positively impact environmental and entrepreneurial education in schools, aligning with the goal of nurturing a generation that is both environmentally conscious and economically self-sufficient.

The purpose of this study is to perform the tensile tests on chicken feather fiber composites to evaluate their potential in practical engineering applications. The study employed the experimental method as a laboratory activity, in which chicken feathers fibers were fused with epoxy resin at different ratios of 5%, 10%, 12% and 14% to form composite specimens. In order to find the ultimate tensile strength, yield strength and the modulus of elasticity of the composites, tensile testing of the composites was done according to the the American Society of Testing and Materials (ASTM) D3039 standard test method. Results showed that in as low as 5% cement reinforcement of chicken feathers, the mechanical properties of the resin were greatly improved, with the ultimate tensile strength reaching 48.672 N/mm² and the yield strength being 39.168 N/mm². This shows the promise of using chicken feather fiber composites as strong and light materials that are also eco-friendly for various uses. The discussion topics mentioned the behavior of stress-strain transition from elastic to plastic region on increasing the load, which showed the strength and flexibility of the composites are in essence, the opposite of each other. This study advances the view that there is more development to be done on chicken feather fiber composites to enable them satisfy the standards of various sectors thereby offering an environmentally friendly method in cutting waste and reducing the burden of the environment from synthetic materials.

The "Kampus Mengajar" program at SMPN 2 Merawang is implemented by students from the University of Bangka Belitung to raise awareness and enhance students' skills in plastic waste management. Through an educational and collaborative approach, this program encourages students to better understand the impact of plastic on the environment. The main activities include socialization on plastic waste management, the creation of eco-bricks, and participation in co-curricular activities such as an exhibition of student works. The results of the program show an increase in environmental awareness among students, as well as the development of proactive attitudes towards maintaining the cleanliness of the school environment.

This research aims to examine the role of environmental management in supporting the development of sustainable tourism at Asstro Highland Ciater. Apart from that, this researcher aims to find out and evaluate the concept of environmental management in order to preserve the environment. The background of this writing is because this tourist attraction relies heavily on nature. so environmental management is very important to study, several problems that want to be discussed include: 1. waste management that is not yet optimal 2. increased use of natural resources such as water and energy that is not controlled 3. as well as low awareness of tourists and local communities which has an impact on damage to local ecosystems, the method used includes in-depth interviews with tourist attraction managers and local communities to identify policies and managerial practices implemented in environmental management. Apart from that, field observations were carried out to assess environmental conditions and interactions between visitors and the natural surroundings. The main results obtained from this research were: 1. Efforts to reduce plastic waste 2. Conservation measures which include the use of water-saving equipment and energy use 3. Management can provide education to tourists regarding the importance of maintaining cleanliness and preserving nature, from this research it can recommend the development of ecotourism and strengthening sustainable tourism branding through preserving nature. 

This community service aims to optimize the use of local potential in Ujong Tanoh Darat Village, Meureubo District, West Aceh Regency, in order to improve community welfare and realize village independence. Local village potential, such as natural resources, cultural diversity, and rich local wisdom, have not been optimally utilized, one of which is the management of plastic and household waste. This program focuses on community empowerment through skills training in processing waste into products of economic value, such as handicrafts from plastic waste and ecoenzymes from organic waste. As a result, the community gains new skills that can increase family income, reduce plastic waste, and increase environmental awareness. In addition, this program creates new economic opportunities through marketing local products and strengthening cooperation between residents. The sustainability of this program is expected to continue to support village economic independence, with support from the village government in developing environmentally friendly local potential-based businesses.

This study aims to develop and implement Problem-Based Learning (PBL) and Project-Based Learning (PJBL) learning models in mathematics learning at SD Negeri No. 18 Bababulo, Majene Regency. The main objective of implementing these two models is to increase student involvement, as well as critical, analytical, and creative thinking skills in solving mathematical problems. The implementation procedure began with an introduction to the theme of the impact of plastic waste on the environment. Students were divided into six groups to discuss problems, develop project plans, and conduct observations. The results showed that students were actively involved, with significant increases in motivation and critical thinking skills. Enthusiasm was seen during discussions and presentations, although there were challenges related to self-confidence during presentations, which were overcome through practice from the teacher. The conclusion of this study states that the implementation of PBL and PJBL is effective in improving students' understanding of mathematical concepts and social skills. Suggested follow-ups include consistent implementation of both models and periodic evaluation to improve the quality of learning.

Persuasive communication is an important strategy in conveying public policy to urban communities that tend to be busy and diverse. This study examines the role of persuasive techniques in increasing understanding and support for policies to reduce the use of single-use plastics. Using an experimental method, the results of the study show that messages delivered with emotional narratives and scientific facts have the most significant impact.

Time Division Multiplexing (TDM) is a multiplexing technique that enables the transmission of multiple signals over a single communication channel by allocating separate time slots for each signal stream. This study aims to analyze the working principles of TDM, examples of its implementation, as well as the benefits and drawbacks of TDM in communication networks. The findings show that TDM can enhance data transmission efficiency through flexible bandwidth allocation, minimizing signal interference and thereby improving signal quality. Due to these advantages, TDM is widely used in fiber optic communication systems, such as telephone and internet networks. Additionally, all data processing is conducted within integrated circuits utilizing Plastic Optical Fiber (POF), allowing TDM to be implemented at a low cost. 

Sculpture is a field of three-dimensional fine art that has dimensions of height, width, and length. According to M. Susanto in his book Diksi Seni Rupa (2002) Miniature is a model, replica, prototype, and scale model as well as various forms of fine art made in small sizes. The author uses the Assembly Technique which in the manufacturing process uses a tool, namely Solder to melt Plastic Waste. Waste is a very important environmental problem, especially in urban areas to create this work, the author uses the Sp. Gustami creation method. The stages of the process of creating a work of art from this method include: 1.Exploration Stage 2. Improvisation/Experimentation Stage 3. Formation/Manifestation Stage. The results of the creation of this Deer miniature statue produced 12 three-dimensional sculptures of various sizes. The process of creating this sculpture began with determining the design, assembling the frame, wrapping plastic around the frame and then melting it, after that forming the details and footing of the statue so that the statue can stand. after that coloring using a spray car, the last step is to give clear to the statue

A mixed-use building refers to a combination of several different functions within a single structure, such as residential, office, shopping, and recreational functions built on one site. Designing a mixed-use building requires careful planning and consideration of various factors such as functional needs, aesthetics, and energy conservation. Additionally, the design of mixed-use buildings incorporates various functions within a single area. Floor slabs and beams use plain reinforcing steel with a quality of Fy = 240 MPa (Ø8mm). The concrete cover is taken as 20 mm. From the design results, several thickness types of slabs were obtained according to the load requirements that must be accommodated above them. The following are the moments acting on the floor slabs and beams. The reinforcement calculations are performed using the capacity strength design method according to SNI 2847-2019. The capacity design concept involves controlling the formation of plastic hinges at predetermined locations. The SAP2000 program can directly calculate the feasibility of the structural dimensions and the amount of reinforcement needed from the input program results. In the SAP2000 program, the concrete code used is the American concrete code ACI-318-05/IBC 2003, which differs in some respects from the concrete code in Indonesia SNI 2847-2019. Adjustments need to be made to comply with the regulations in Indonesia. Internal forces from the SAP2000 program are selected from load combinations that generate the maximum moments at the column face. The flexural and shear reinforcement for beams can be directly read from the SAP2000 output in the form of information on the required area of reinforcement. 

"Eco" (ecosystem) means nature, and "Print" means printing. These two words are combined into the word ecoprint. This method was developed with the aim of producing high-quality artwork using natural materials as dyes and design motifs. Leather is one of the materials used to make the ecoprint process. Namely leaves and plant flowers. Although each fabric uses the same type of plant leaves, the ecoprint process uses natural materials to create unique themes and patterns on each fabric. Using the PAR (Participatory Action Research) service method in the form of an approach by increasing community participation so that they can participate in the activity. This activity begins by determining the right day and date of implementation after that conducting observations and permission from the principal at MI Ihatta and MI Miftahul Ulum schools to be able to carry out activities at the school, in addition, ecoprint training activities are also held in the yard of the village hall office. There are several ways to make ecoprints, including (1) turning the tote bag inside out, (2) lining the inside with plastic so that the resulting color does not spread, (3) arranging several plant shapes on the tote bag and using the leaves and flowers, (4) after that cover the arranged plant parts using other plastic, (5) hit it using a stone or hammer slowly while holding the plastic cover so that the results obtained are not messy, (6) and the last stage is removing the remains of the plants that are stuck to the tote bag, after that turning the tote bag back to its original position and forming several beautiful motifs from the plant parts.

The aim of this research is to determine the partial and simultaneous influence of organizational culture and competence on employee performance. This research uses quantitative research methods with data collection techniques through distributing questionnaires and supported by secondary data. The data analysis technique used uses SPSS software. The sample in this research were all production employees of plastic companies in Surabaya. The total sample was 94 respondents from plastic company employees in Surabaya. The results of this research show that organizational culture variables have a significant effect on employee performance. The competency variable has a significant effect on the performance of Plastic Company employees in the city of Surabaya. Work culture variables and competency variables together have a significant effect on the performance of Plastic Company employees in Surabaya.

Real Work Lecture (KKN) is a community service program by students that aims to empower the community with a cross-disciplinary and sectoral approach. The KKN program in Telaga Jernih Village, Secanggang District, Langkat Regency, aims to overcome the problem of monotonous hereditary livelihoods and open up new business opportunities through economic empowerment and entrepreneurship. Before the program was implemented, most villagers relied on the agricultural sector, especially oil palm and rice, which made the village economy vulnerable to price fluctuations and environmental conditions. This program focused on socialization about livelihood diversification, entrepreneurial skills training, and reducing plastic waste by converting it into products with economic value. Through this training, the community was invited to see local potential that could be developed into new business opportunities. The results of the implementation of this KKN showed an increase in community understanding of the importance of business diversification and the application of skills acquired in starting small businesses in the fields of agricultural processing and plastic waste recycling. Several residents have started new businesses supported by the skills taught during the training. However, several challenges such as low digital literacy and limited access to capital are still obstacles to business development. Therefore, a follow-up program is needed that focuses on developing digital skills and access to capital to support the sustainability of the business that has been pioneered. Overall, this KKN program has succeeded in providing a positive impact on the Telaga Jernih Village community and can be a model for local potential-based economic empowerment in other villages.