Talking about the sustainability of life, humans cannot be separated from their dependence on energy needs. Most of the energy sources that we have used so far are fossil energy sources that are non-renewable. With the high dependence of humans on energy, innovation is needed to minimize energy limitations. One form of new renewable energy that can overcome this is Biogas. Biogas is a gas that can be obtained from the fermentation of livestock waste through technology in the form of an airtight tube called a biodigester which is useful in processing livestock waste into biogas energy. Through research that the group conducted using the literature review method, we found one village in Riau that has succeeded in utilizing biodigester technology to make biogas, namely Mukti Sari Village, Tapung District, Kampar Regency, which has now succeeded in becoming an energy independent village.

This study uses a qualitative method to describe the infestation of Oryctes rhinoceros beetles in oil palm plantations and its impact on crop productivity. This pest poses a major threat to oil palm cultivation due to its ability to damage the growing points of both young and mature plants, resulting in a significant decline in yield. The study was conducted through field observations and in-depth interviews with farmers and field technicians at an oil palm plantation in Sumatra. The findings reveal that Oryctes infestations are more prevalent in plantations with poor sanitation and limited implementation of regular biological control systems. Farmers predominantly rely on mechanical and chemical control methods, which have proven to be less effective due to the lack of coordinated and sustainable application. Therefore, an ecologically-based integrated pest management strategy is needed, combining biological control, cultural practices, and farmer education to effectively suppress pest populations and ensure the sustainability of oil palm production.

This study examines the phenomenon of the regulatory revolution in the sharia economy through the integration of digital technology to optimize the application of sharia principles. The background of this research departs from the rapid digital transformation, which requires adaptation and reform within the framework of sharia economic regulations to remain relevant and responsive to the challenges of the times. Using a qualitative approach that combines normative-doctrinal analysis and empirical case studies, this study aims to explore how current regulatory developments, the role of digital technology, as well as legal innovation challenges and opportunities arise in the implementation of sharia principles. The results of the study show that the integration of digital technology not only increases efficiency and transparency in the application of sharia principles, but also raises new problems related to the adaptation of conventional legal frameworks. Therefore, cross-sector collaboration and adaptive regulatory reform are needed to optimize the potential of the sharia economy in the digital era.

This study aims to explore the effectiveness of flashcard media in music learning, especially in helping students understand music theory and increase motivation to play music through a fun and interactive approach. Using the Systematic Literature Review (SLR) method, this study identified, evaluated, and synthesized eight selected scientific articles published between 2015-2025. The selection process was based on PRISMA guidelines and Zawacki-Richter's SLR model, including the formulation of research questions, screening of articles based on inclusion and exclusion criteria, and assessment of study quality. The results showed that the use of flashcards - both in manual and digital form - consistently contributed positively to the improvement of rhythmic ability, understanding of notation concepts, and affective engagement of learners from various levels. Flashcards proved effective in simplifying complex musical material into concrete visual representations, strengthening long-term memory through retrieval practice and spaced repetition techniques. Furthermore, the integration of flashcards in project-based pedagogical approaches (PjBL), character learning, as well as digital technologies such as apps and AR, shows great potential in enriching music learning experiences that are inclusive, collaborative and meaningful. Therefore, this study recommends the continued development of interactive technology-based flashcard media as a future music learning innovation.

This Research aims to identify the role of of leadership in addressing and bridging differences of opinion between teachers and parents regarding the educational methods used. The goal is to create a harmonious collaboration to optimize children's development. The research method employed is library research, by collecting and analyzing various relevant literature sources to understand effective leadership strategies in building collaboration between families and schools. The findings indicate that effective leadership in early childhood education (ECE) settings must be able to accommodate diverse perspectives through open communication, collaborative activities, and the development of trust between schools and parents.

The construction of the Musi 6 Bridge in 2 Ulu Village is an opportunity to develop existing potential. One of them is tourism development. A number of tourist attractions have the potential for development as an effort for sustainable tourism. For this reason, Community Service conducted a SWOT analysis of tourism and recommendations that are relevant to the situation in the field. Approaching the Community through interviews and Focus Group Discussions is a method of data analysis. In general, tourism in the 2 Ulu Area requires Community skills in activity management because the available locations can be used as a means of performance or exhibition. Of course, this is a collaboration between the surrounding community, government, private sector and community.

The concept of selecting the student council president in schools that implements democratic values ??is still often found to be misunderstood in practice. The continuity of the student council president election which should be carried out freely, honestly, and fairly but often there are still influences from irresponsible parties. Democratic values ??that should uphold the rights of every human being are tarnished by dirty practices that often occur in the election of the student council president in schools. This study uses a research method with data collection through library studies from various literature such as articles, websites, the internet, news and others that are credible and trusted.

The development of wearable technology such as sportwatches has driven an increase in purchasing interest, especially among millennials. This study aims to analyze the effect of product quality, brand image, and promotion on the purchase intention of sportwatches in the millennial consumer segment in Indonesia. This study uses a quantitative approach with an associative method. The sample consisted of 100 millennial respondents who were selected purposively, with an instrument in the form of a Likert scale closed questionnaire. Data were analyzed using multiple linear regression, F test, t test, and coefficient of determination. The results of the analysis show that the three independent variables, both simultaneously and partially, have a significant effect on the purchase intention of sportwatches. The product quality variable is the dominant factor in influencing purchase intention, followed by brand image and promotion. The coefficient of determination (Adjusted R Square) of 66.3% indicates that the combination of the three variables is able to explain most of the variation in consumer purchase intention. These findings provide strategic implications for manufacturers in designing a more adaptive marketing approach to millennial preferences that prioritize quality, brand reputation, and digital promotional interactions.

Karena dapat membantu mencegah perkembangan penyakit tersebut, terapi diet merupakan salah satu terapi utama untuk diabetes melitus. Ada beberapa aspek pendukung yang mempengaruhi keberhasilan penerapan rencana diet. Penelitian ini bertujuan untuk menemukan variabel-variabel yang mempengaruhi kepatuhan diet pada penderita diabetes melitus tipe 2. Penelitian ini menggunakan teknik telaah pustaka (I) dengan menggunakan sumber data dari Google Scholar dan Portal Garuda. Metodologi kerangka kerja PICOS digunakan untuk mengkaji data (Populasi, Intervensi, Perbandingan, Hasil, Desain Penelitian). Hasil penelitian menunjukkan bahwa pendidikan merupakan salah satu unsur yang mempengaruhi keberhasilan penerapan diet., pendidikan, usia, pendapatan, motivasi, dukungan keluarga, dan dukungan tenaga kesehatan. Semua faktor ini saling berkaitan dan berperan penting dalam mendukung keberhasilan pola diet. Kesimpulannya, faktor pengetahuan merupakan faktor utama yang paling berpengaruh. Tanpa pengetahuan yang memadai, baik pada pasien, keluarga, maupun tenaga kesehatan, keberhasilan dalam menjalankan pola diet yang tepat akan sulit dicapai. Faktor-faktor lain berperan sebagai pendukung yang memperkuat penerapan diet yang efektif.

Food hygiene and sanitation are crucial in the culinary industry to prevent contamination and protect consumer health. However, foodborne diseases remain a global issue due to poor food handling practices. Traditional lecture methods are often ineffective in improving students' practical skills related to food safety. This study evaluates the effectiveness of Role-Playing Cards as an interactive learning tool. A quasi-experimental design with a pre-test and post-test was conducted on 70 culinary students enrolled in a food hygiene and sanitation course. Participants were divided into two groups: Cross-Contamination and Foodborne Illness. The findings showed a significant improvement in understanding, with post-test scores increasing from 58.2 to 87.6 (p < 0.001) and from 60.4 to 89.2 (p < 0.001). Additionally, 99% of students found the method relevant, and 97% considered Role-Playing Cards engaging and easy to apply. In conclusion, this method effectively enhances students' understanding, promotes critical thinking, and provides a more interactive learning experience in food safety education.