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Pyrolysis is a biomass conversion method into fuel through heating at high temperatures under oxygen-limited conditions. The main factors influencing the pyrolysis process include temperature, residence time, pressure, particle size, reactor design, and the type of pyrolysis employed. This study aims to design an auger-type fast pyrolysis system based on previous research. The design and modeling of the fast pyrolysis equipment were carried out using Autodesk Inventor 2021 software. Based on the calculation and design results, a fast pyrolysis reactor with a multi-stage configuration and a capacity of 5.2 kg was developed. The system consists of a three-stage reactor made of Stainless Steel 304. The reactor is equipped with a screw conveyor for material transport, which is driven by an electric motor. Biomass heating inside the reactor is provided by a clamp heater with an electrical power requirement of 611 W, while biomass cooling is performed using a condenser with a cooling water capacity of 15.586 liters. Based on the structural simulation results, the maximum von Mises stress obtained was 35.4 MPa, the maximum displacement was 0.0528 mm, and the safety factor was 6.07 under loading conditions including an internal reactor pressure of 0.32 MPa, a torsional moment of 1,130 kg·mm, and an operating temperature of 700 °C. These values are within the allowable limits of the material, indicating that the designed reactor is structurally safe and feasible for use.

Gununganyar Reservoir in Tuban Regency is one of the reservoirs used as a source of livelihood for the local community. However, further development and utilization of Gununganyar Reservoir have yet to be undertaken. The development of a small-scale floating Photovoltaic Solar Power Plant (floating solar panels) at Gununganyar Reservoir, aimed at providing an alternative and renewable energy source for operating raw water pumps and for supporting the Gununganyar Nature Tourism (WAG) initiative, constitutes an innovative and strategic effort to enhance energy efficiency and environmental sustainability in rural areas. This study focuses on the design and performance assessment of a floating solar panel system constructed with processed bamboo as an alternative floating material replacing HDPE, while integrating local wisdom and environmental conservation principles to minimize the reservoir’s carbon footprint. The methodology employs a simple quantitative approach combined with a literature review of relevant studies. Based on the analysis, the design of this small-scale floating solar panel system utilizes a 170 Wp off-grid solar module mounted at a tilt angle of approximately 7,1°, capable of generating a peak power output exceeding 2,962 kWp and supported by a battery capacity of  328,33 Ah. The implementation of these floating solar panels is expected to serve as a model for reservoir development by promoting energy self-sufficiency, stimulating local economic growth, and contributing to the achievement of net zero emissions by 2060.

This MBKM program aims to develop innovative woven textile designs in Laranwutun Village, Ile Ape District, Lembata Regency, as an effort to enhance the economic value of local products through the utilization of digital marketing based on Facebook. Laranwutun Village possesses significant potential in traditional ikat weaving; however, artisans still face challenges in design development and rely on conventional marketing practices. The program was implemented over a two-month period involving MBKM students, local weavers, and MSME actors. The implementation methods included mentoring in creating innovative textile designs by combining traditional motifs with modern color trends, product photography training, and training on the use of Facebook for promotion and sales. The results indicate an improvement in artisans’ ability to create new designs, enhanced product visual quality, and expanded digital marketing reach. Following the training, five artisans actively utilized Facebook as a promotional medium and successfully received orders from outside the region.Overall, this MBKM activity contributes to strengthening the creative economy based on local culture and enhancing the independence of woven-textile entrepreneurs in Laranwutun Village through accessible and sustainable digital technology utilization.

The development of multimedia-based interactive games requires a system capable of effectively managing game logic, character behavior, and the integration of visual and animation elements. This study aims to implement GDScript in the development of a 2D RPG game using the Godot Engine. The research method was carried out through the design of scene and node structures, the implementation of game logic using GDScript, and the application of Finite State Machine (FSM) to regulate enemy behavior. GDScript is used to control character movement, animation systems, and interactions between players and objects in the game. The implementation of FSM allows enemies to have dynamic behavior through state settings such as idle and wander. Functional testing results show that the game system can run according to the design and is capable of producing responsive interactions. In addition, the use of modular architecture in the Godot Engine facilitates system development and maintenance. Based on the research results, the Godot Engine and GDScript are considered effective for developing multimedia-based interactive games.

This study aims to develop Student Worksheets (LKPD) incorporating the traditional serok kuali game on multiplication material for third-grade students at SDN Deket Wetan Lamongan and to determine their validity, effectiveness, and practicality. The research method employed was Research and Development (R&D) using the ADDIE model, which consists of the analysis, design, development, implementation, and evaluation stages. The research subjects included two expert validators, namely a media expert and a subject-matter expert, as well as 15 third-grade students at SDN Deket Wetan Lamongan. Data were collected using expert validation questionnaires, conceptual understanding tests (pretest and posttest), and student response questionnaires. The results showed that the developed LKPD demonstrated a very high level of validity, with a score of 97.5% from the media expert and 95.55% from the subject-matter expert. The effectiveness test indicated an improvement in students’ learning outcomes, with an N-Gain score of 0.803 (80.3%), which falls into the effective category. In addition, students’ responses to the use of the LKPD reached a percentage of 95.6%, categorized as very good. Based on these findings, it can be concluded that the LKPD incorporating the traditional serok kuali game is feasible, effective, and practical for use as instructional material to enhance third-grade elementary school students’ understanding of multiplication concepts.

The purpose of this study is to develop a mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes. This research is motivated by the use of teaching materials by teachers is still manual, not in digital form that integrates local tourism potential. The type of research is R&D (Research and Development) with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The results of the study show that the mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes has gone through a model development process. The validation results show that the percentage of experts with an average of 93.6% is in the very valid category. The application of the mathematics e-module received a positive response with a percentage of 88.5% on a small scale and on a large scale showing 89.2% in the very practical category. The posttest showed a percentage on a small scale of 83%, while on a large scale it reached 80% which is categorized as effective. Conclusion, the development of a mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes is declared valid, practical and effective.

This study analyzes the strategy of the Community Monitoring Group (Pokmaswas) in developing mangrove forests in Pelambung Village, Tanjung Balai Karimun, Riau Islands. This study aims to explore Pokmaswas management patterns and their impacts on local communities and coastal ecosystems. Mangrove forests play a crucial role in maintaining ecosystem balance, protecting coasts from abrasion, flooding, and storms, and supporting the biodiversity of fish, shrimp, and crabs. In Indonesia, mangrove area has decreased drastically from 5.2 million hectares in 1982 to around 2.5 million hectares due to land conversion, logging, and pollution. In Pelambung Village, Pokmaswas, established in 2023, began rehabilitation by planting 5,000 mangrove seedlings such as Rhizophora (mangrove), Avicennia (api-api), and Sonneratia. This qualitative, descriptive study, using observation, local community interviews, and documentation techniques, was conducted from July to August 2024. The Community Development Group (Pokmaswas) is active in nursery, harvesting, maintenance, monitoring, and ecotourism development, generating economic benefits (job creation, mangrove coffee MSMEs and miniature canoes), ecological benefits (protection from abrasion, increased fisherman's catch), and biological benefits (marine biota habitat). Challenges include limited funding, pest attacks, and integration with regional development.    

Background: The prevalence of Chronic Energy Deficiency (CED) among pregnant women in West Papua remains very high, reaching 40.7%. The provision of manufactured supplementary food (PMT) in the form of biscuits often faces challenges due to low compliance caused by monotonous taste and nausea-triggering flavors. Sweet potato (Petatas) is a potential local food source with an energy content of 123 kcal/100g that could serve as an alternative PMT. Objective: To analyze the acceptability (taste, color, aroma, and texture) of sweet potato-based PMT products among pregnant women with CED. Methods: A quantitative study with a cross-sectional design was conducted from September to October 2025 at the Ransiki Health Center. The sample consisted of 22 pregnant women with CED. The research instrument used a 5-point hedonic scale questionnaire. Results: Respondent characteristics were dominated by the ideal age range of 20-35 years (81.8%) and low family income (63.6%). The acceptability test results showed high overall acceptance with an average score of 4.23 (Highly Liked). The color attribute obtained the highest score (4.27), followed by taste (4.18), texture (4.18), and aroma (4.14). Conclusion: Sweet potato-based PMT products have excellent acceptability and significant potential to be integrated into local nutritional intervention programs for pregnant women with CED.

Kawengen Village, located in East Ungaran District, Semarang Regency, is one of the main corn-producing areas with strong potential to be developed into processed products with high economic value. However, limited community knowledge in product processing, business management, and marketing has prevented corn production from generating optimal added value. This community service program aims to strengthen village entrepreneurship through the establishment of a corn production house as a center for innovation, training, and business mentoring. The production house is expected to enhance community skills, promote economic independence, and support sustainable local economic development. The program was implemented through the PPK Ormawa initiative, which included socialization of corn-based product innovations, basic financial bookkeeping training, digital marketing training, product innovation workshops, and continuous mentoring in production, marketing, and financial management. The results demonstrate significant improvements in community skills in processing corn into value-added products, increased understanding of basic business financial management, and enhanced capacity to utilize digital media for market expansion. The corn production house also functions as a community collaboration hub that strengthens business development based on local resources. Overall, the strategy of developing village entrepreneurship through a corn production house has proven effective in encouraging the growth of productive community-based enterprises, strengthening local economic independence, and fostering entrepreneurial interest rooted in village potential.

Local food innovation is not only focused on product development but also requires effective communication strategies to build positive perceptions and enhance market competitiveness. This study aims to analyze the implementation of innovation communication strategies by micro, small, and medium enterprises (MSMEs) in developing papaya-based chili chips as a flagship product in Nagori Karang Anyar, Gunung Maligas District, Simalungun Regency. The research employs a descriptive qualitative approach, focusing on the product innovation process, marketing communication patterns, and efforts to build product image amid competition in the local food industry. The findings indicate that innovation communication strategies play a crucial role in creating product differentiation through narratives of unique taste, utilization of local raw materials, and promotional strategies combining traditional methods and digital media. Papaya chili chips are positioned as a product that blends distinctive local flavors with a modern touch, attracting consumer interest and increasing the added value of papaya as a local commodity. This study emphasizes that the success of local food innovation depends not only on product quality but also on the ability of MSMEs to manage adaptive and persuasive communication strategies.

The Integration of technology in the education sector is a crucial strategy for addressing the challenges of the Industrial Revolution 4.0. This study aims to develop and examine the effectiveness of "Physical Changes of the Earth’s Environment" learning media by utilizing the interactive features of the ClassPoint platform and Edpuzzle videos in 5th-grade elementary school. The method employed is library research with a qualitative-descriptive approach, conducted through content analysis of various relevant scientific literatures from the last five years. The research findings indicate that the synergy between ClassPoint and Edpuzzle is capable of transforming abstract science materials into more concrete and engaging content for students. ClassPoint plays a role in creating a participatory digital classroom through various real-time interaction formats, while Edpuzzle reorients video-viewing activities into an active learning process through embedded question features that stimulate critical thinking. Overall, the use of these interactive media has positive implications for the escalation of active participation, concentration, and the depth of students' conceptual understanding. This study concludes that the development of ClassPoint and Edpuzzle-based learning innovations is an effective and relevant strategic step in improving the quality standards of science education in elementary schools.

Tegal Regency is a region in Central Java Province. Geographically, Tegal Regency is situated on a highly advantaged path. This regency, with its capital in Slawi, boasts a diverse range of economic centers spread across several regions. Dominated by small and medium-sized industries, the community can be empowered and participate in improving their well-being through job creation. Small and Medium Industry centers are highly diverse. One area we highlight in this article is the potential of metal and machinery SMEs, which are crucial commodities in the local economy. The metal industry is located around Talang District. The metal and machinery sector holds significant promise due to the potential for increased manufacturing demand, which can boost the local economy. In this study, we used field research and interviews to understand how the SME economy operates. By highlighting this, we hope that the government will focus on SMEs, particularly in the metal and machinery sector, by providing incentives for training and improving product quality and human resources. Based on the above description, local economic growth is highly possible with the support of adequate facilities and infrastructure.

The aim of the research is to find out the process of developing knowledge learning media based on Android applications.Learning media is very much needed as a tool used in practical learning.Changes in educational progress require innovation in learning media to keep them up to dat and able to overcome new problems that arise. The research method used is the R & D research and development method with the 4D model. The stages of the 4D development model are 1) Definition; 2) Design; 3) Development; 4) Distribution. This research produces android-based textile knowledge learning media. The software used is iSpring Suite Toolkit Authoring based on Power Point; and Website 2 APK Builder.The iSpring Suit software is used in the design and development of learning media, while the Website 2 APK Builder software is used to change Android application programs. Based on the results of the learning media feasibility questionnaire, it can be seen that the textile knowledge learning media is very feasible to use, reaching 90%.

Personality development is a fundamental aspect in the formation of nursing students as prospective professional nurses, especially in services in the Emergency Unit (ER). The personality of nurses in the ER is reflected in the ability to think critically, effectively communicate, caring attitudes, and professional performance that supports the quality of service. This community service activity aims to increase the knowledge of nursing students about personality development in the ER through educational video media. The method used is health education with a pre-test and post-test design involving 19 nursing students. The results of the activity showed an increase in the average score of student knowledge from 14.58 in the pre-test to 19.16 in the post-test. These findings indicate that educational video media is effective in increasing students' understanding of the role of critical thinking, communication, caring, and performance in the ER. In addition, this activity also contributes to strengthening student readiness to face the challenges of clinical practice in an emergency environment. Thus, the use of video media as an educational means can be an innovative strategy in supporting the personality development of nursing students, as well as strengthening the professional competencies needed in emergency health services.

Status gizi ibu dan anak merupakan indikator penting kesehatan masyarakat dan berperan besar dalam pencegahan anemia, kekurangan energi kronis (KEK), dan stunting. Rendahnya literasi gizi serta keterbatasan kemandirian ibu dalam melakukan deteksi dini status gizi masih menjadi tantangan di tingkat komunitas. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan dan kesadaran ibu mengenai gizi seimbang serta kemampuan deteksi dini status gizi ibu dan anak melalui edukasi berbasis teknologi informasi. Metode pelaksanaan meliputi tahap persiapan, pelaksanaan, dan evaluasi. Persiapan dilakukan melalui observasi awal dan pengembangan media edukasi digital. Pelaksanaan dilakukan dengan penyuluhan langsung, diskusi interaktif, serta pengenalan aplikasi edukasi gizi dan deteksi dini pertumbuhan anak. Evaluasi dilakukan menggunakan pre-test dan post-test untuk menilai perubahan tingkat pengetahuan peserta. Kegiatan ini melibatkan 22 ibu sebagai peserta. Hasil menunjukkan peningkatan pengetahuan yang signifikan, ditandai dengan meningkatnya jumlah peserta pada kategori pengetahuan baik dan tidak ditemukannya lagi peserta dengan kategori pengetahuan kurang setelah intervensi. Peserta menunjukkan antusiasme dan komitmen untuk menerapkan prinsip gizi seimbang dalam kehidupan sehari-hari. Edukasi gizi seimbang berbasis teknologi informasi terbukti efektif dalam meningkatkan literasi gizi ibu dan berpotensi mendukung deteksi dini masalah gizi secara mandiri. Kegiatan ini direkomendasikan untuk diintegrasikan secara berkelanjutan dalam program kesehatan ibu dan anak di tingkat komunitas.

Children living in coastal areas face various challenges in developing their literacy and creative potential due to limited access to non-formal educational facilities and adequate learning resources. This condition results in low stimulation of reading, writing, communication, and creative expression skills from an early age. This community service activity aims to develop the potential of coastal children through basic literacy learning and community-based creative arts in Wawatu Village, North Moramo District, South Konawe Regency. The method applied is a community-based participatory approach with an experiential learning design, actively involving children in various educational activities such as shared reading, storytelling, drawing, coloring, singing, reading children’s poetry, and group-based educational games. Data were collected through participatory observation, brief interviews with children, parents, and community leaders, as well as simple questionnaires to assess participants’ responses and satisfaction levels. The results indicate high enthusiasm among the children, with most participants stating that they were very happy and happy to take part in the entire series of activities. The children became more active in interacting, more confident in expressing their opinions, and showed increased interest in reading and artistic activities. In addition, parents and community leaders expressed positive responses, as the program was considered to provide a contextual and meaningful alternative learning experience. This activity demonstrates that the integration of basic literacy learning and community-based creative arts is an effective approach to holistically developing the cognitive, social, and emotional abilities of coastal children while strengthening the role of the community in supporting children’s sustainable growth and development.

Micro, Small, and Medium Enterprises (MSMEs) play a strategic role in improving the economy of rural communities, but still face various obstacles, particularly in packaging branding and marketing. Snack MSMEs in Batumarta 1 Village, Lubuk Raja District, have good product potential, but are not yet supported by a strong brand identity, attractive packaging design, and optimal use of digital marketing. This community service activity aims to support MSME development through assistance with packaging branding and digital marketing. The implementation method includes observing MSME conditions, socializing the importance of branding and digital marketing, assistance in creating brand identities and product packaging designs, and assistance with promotions through social media. The results of the activity show an increase in MSME understanding of the importance of packaging branding and digital marketing, as well as improvements in the appearance of product packaging to be more attractive and have a brand identity. In addition, MSMEs have begun to utilize social media as a means of product promotion. This activity is expected to expand marketing reach, increase product competitiveness, and support the sustainability of MSMEs in Batumarta 1 Village, Lubuk Raja District.

Micro, Small, and Medium Enterprises (MSMEs) play a strategic role in improving the economy of rural communities, but still face various obstacles, particularly in packaging branding and marketing. Snack MSMEs in Batumarta 1 Village, Lubuk Raja District, have good product potential, but are not yet supported by a strong brand identity, attractive packaging design, and optimal use of digital marketing. This community service activity aims to support MSME development through assistance with packaging branding and digital marketing. The implementation method includes observing MSME conditions, socializing the importance of branding and digital marketing, assistance in creating brand identities and product packaging designs, and assistance with promotions through social media. The results of the activity show an increase in MSME understanding of the importance of packaging branding and digital marketing, as well as improvements in the appearance of product packaging to be more attractive and have a brand identity. In addition, MSMEs have begun to utilize social media as a means of product promotion. This activity is expected to expand marketing reach, increase product competitiveness, and support the sustainability of MSMEs in Batumarta 1 Village, Lubuk Raja District.

This study focuses on the development of an interactive learning media for introducing OpenGL in the Computer Graphics course. The research approach used is Research and Development (R&D) with the ADDIE development model, which includes the stages of analysis, design, development, implementation, and evaluation. The final product of this study is an interactive learning application that covers basic OpenGL material, simple programming exercises, evaluation quizzes, and other supporting information. The trial results show positive feedback from students. Based on the questionnaire analysis, the aspects of appearance, content, interactivity, and benefits received an average score of 85% in the "very good" category. Additionally, the effectiveness of this media is evident in the improvement of student learning outcomes, with the average score increasing from 64 to 82 after using the media, and the passing rate rising from 56% to 88%. Overall, this OpenGL-based interactive learning media proves to be effective in enhancing students' understanding and can serve as an alternative or complement in the Computer Graphics course learning process.

Correspondence management is very important in government administration because it helps all parts of the organization communicate more easily. The purpose of this study was to assess the manual mail management system at the Riau Province Human Resources Development Agency (BPSDM) and find barriers and conformity with applicable regulations, especially Riau Governor Regulation No. 45/2019. The research was conducted using a descriptive qualitative approach involving participatory observation, in-depth interviews, literature research, and visual documentation. The results showed that the manual system used causes recording errors, delays in letter distribution, and difficulties in archive retrieval. In addition, the current provisions have not fully digitized the official manuscript and archive classification. Limitations in budget, infrastructure and HR training lead to mismatches between practices and regulations. The results show that to increase bureaucratic efficiency and improve accountability of public information, we must shift to a digital-based mail management system. According to this study, digitization of archives through applications such as Srikandi should begin immediately. This is necessary so that BPSDM can meet the demands of fast and accurate information services in the era of information technology.