In Indonesia, tapioca wastewater is one of the most abundant organic wastewater. It has a great deal of potential for use as a substrate for biogas, but it contains a high ratio of chemical oxygen demand (COD) to nitrogen (N). For this reason, adding nitrogen sources, such as urea, is crucial. Meanwhile, microbial electrolysis cell-assisted anaerobic digestion (MEC-AD) is a novel technology that can be applied to enhance biogas production. Thus, the purpose of this study was to ascertain how adding urea affected the biogas yield from tapioca wastewater through the MEC-AD process. There were six digesters, namely A (MEC-AD urea 0.25 g), B (MEC-AD urea 0.5 g), C (MEC-AD urea 1 g), D (MEC-AD urea 1.5 g), E (MEC-AD without urea), F (AD without urea). The MEC-AD process was carried out at room temperature using a batch system. The results revealed that the MEC-AD (without urea) generated a biogas yield 2.3-fold higher than AD alone (without urea). Then, an increase in urea addition in the MEC-AD process from 0 to 1.5 g enhanced biogas yield from 106.4 to 268.8 mL/g-COD. It means that in MEC-AD, the urea addition of 1.5 g generated 2.5 times more biogas yield than without urea addition. The MEC-AD with urea addition of 1.5 g had the most stable substrate pH and the highest volatile fatty acids during the process. The MEC-AD (without urea) gave a higher COD removal efficiency (21%) than AD alone (without urea), namely 14%. Then, an increase in urea addition from 0 to 1.5 g in MEC-AD increased COD removal from 21% to 38%. Therefore, the best variable was MEC-AD with a urea addition of 1.5 g. This innovation is expected to reduce environmental pollution and provide biogas as alternative energy to substitute the use of fossil fuels.    

This research discusses the application of musyarakah contracts as a sharia financing solution for Micro, Small and Medium Enterprises (MSMEs) in the midst of digital economic development. MSMEs have a crucial role in sustaining the Indonesian economy, but still experience difficulties in accessing fair and sustainable financing. The musyarakah agreement, with its partnership and profit-sharing principles, is considered to be in line with the character of MSMEs that prioritize cooperation and justice. Through a qualitative approach based on a literature study, this research explores the potential, regulatory challenges, and strategies to strengthen the implementation of digital musyarakah. The results of the analysis show that digitalization offers great opportunities in promoting Islamic financial inclusion, but is still constrained by low digital literacy, limited infrastructure, and weak supervision of sharia principles. Therefore, a strategy is needed that includes improving education, developing Islamic financial technology, and collaboration between regulators, financial service providers, and MSME players. This study concludes that the successful implementation of digital musyarakah requires an integrated approach so that MSMEs are able to access Islamic financing independently, fairly and sustainably.

Penelitian ini bertujuan untuk menghasilkan produk berupa pengembangan “Permainan Bovbeng” yang efektif dalam pembelajaran bola voli bagi siswa kelas V sekolah dasar daerah binaan tengah Kecamatan Teras Kabupaten Boyolali. Metode penelitian yang digunakan adalah metode R&D yang dikembangkan oleh Sugiyono. Data hasil penelitian dikumpulkan dengan cara evaluasi ahli, kuesioner siswa, pengamatan, observasi, dan wawancara. Semua data tersebut diolah secara analisis deskriptif persentsae. Uji skala kecil melibatkan 15 siswa dari 1 sekolah dan uji skala besar melibatkan 54 siswa dari 3 sekolah. Hasil kuesioner ahli memperoleh 89.33%, total uji skala kecil 80.23%, dan total uji skala besar 93.35%. Dengan demikian “Permainan Bovbeng” memenuhi kriteria “Sangat Baik” dan layak untuk digunakan dalam pembelajaran bola voli untuk siswa sekolah dasar.

The Community Service Program (KKN) of the Faculty of Economics, UNKRIS, aims to raise awareness and change behavior among the community in Pondokgede sub-district regarding the environment, starting with the household environment in handling organic and inorganic waste through composting and the use of Biopori Infiltration Pits (LRB), waste banks, and greening for Green Open Spaces (RTH). The method used in this study is qualitative analysis. Before the KKN FE UNKRIS activities were implemented, several steps were taken to ensure the smoothness and effectiveness of the program, including preparation, implementation, and evaluation. Overall, the KKN FE UNKRIS program in the environmental conservation movement and its implementation in Pondokgede sub-district has had a positive impact on accelerating the development of Pondokgede sub-district, as evidenced by the improvement in community behavior toward the environment and the level of community satisfaction with the KKN FE UNKRIS program. The implications of this KKN program include the need for continuous monitoring to ensure that community awareness of a clean and healthy environment continues to increase. Additionally, the program should be continued until the stage of utilizing the results of waste processing generated by each community in Pondokgede.

Now days, the home environment is still much  less supportive of life for the elderly, most elderly living at  home need a companion to help them. Safety, health, happiness  and independence will be difficult for them to get even the  elderly will be further away from the surrounding  environment. Based on population projection 2017 data there  are 23.66 million elderly people in Indonesia and predicted in  2020 there are 27.08 million people elderly. Smart homes that  are currently widely studied have not focused on elderly; most  smart homes only provide a sense of security and convenience  for adult residents. And this will be a problem that until now  has not solved the improvement of human life through  technology to get happiness, care and health especially for the  elderly. In many cases of the elderly, it is easier to send them to  live in a nursing home and that keeps them separated from  their families for the rest of their lives. That's what makes  them less happiness. Orange Technology is a collection of  technological elements to improve human life by getting  happiness, Care and health. This study reviewed the journals  of scientific databases such as IEEE explore, ACM digital  library and Proquest published from 2002 to 2017. From the  search results obtained 54 papers that will answer the scientific  questions of this research. The result of this research is a  framework of smart house that has Sensor, Monitoring,  Wireless, Scalability, Low cost, GPS and ease of installation  and maintenance as components of smart house of orange  technology for elderly.

This research examines how economic literacy and digital literacy influence economic teacher readiness through self-efficacy as a mediating variable among Economic Education students from the State University of Surabaya. Using an explanatory research type and a quantitative approach, this study employs PLS-SEM methodology. The investigation gathered questionnaire responses from 106 participants, using the proportionate stratified random sampling technique. First, the result of this study stated that economic literacy does not significantly influence economic teacher readiness. Second, digital literacy and self-efficacy positively influence economic teacher readiness. Third, economic literacy and digital literacy also have a positive influence on self-efficacy. Last, while self-efficacy did not mediate the influence of economic literacy, it did mediate the influence of digital literacy on economic teacher readiness. These results suggest the necessity for alternative comprehensive approaches to improve economic literacy towards economic teacher readiness, other than through self-efficacy. Therefore, educational institutions should enhance digital literacy and self-efficacy to boost economic teacher readiness.

Spring steel is one type of material that is widely used in various engineering applications, such as vehicle suspension systems and equipment that require resistance to dynamic loads. Spring steel possesses various mechanical characteristics that are strongly influenced by the microstructure of the material. These characteristics remain consistently affected throughout the entire material. Heating that occurs due to exposure to flame can alter certain microstructural properties of spring steel and affect its performance. In this study, an analysis was carried out on all changes in the microstructure of spring steel caused by flame heating, as well as its effect on the hardness of the material. The results of the study showed that heating can indeed cause changes in the microstructural phase and a decrease in fatigue resistance of the spring steel.

A website is the heart of an institution, school or company profile. With a web appearance that is always active and always has useful content, it will add to the image of the owner of the website. Because of this, the community service team wants to provide assistance to teachers so that they can also contribute to filling the website. So not only IT teachers can contribute to the website, but all teachers can contribute so that the website can be more active and interactive for students, parents of students and even for the general public who want to know information about SMPN 07 Semarang. And through this assistance, it also utilizes the Google site for more interactive learning and students are also more active in creating learning for the future.

This study investigates the effect of Current Ratio (CR), Debt to Equity Ratio (DER), and Total Asset Turnover (TATO) on Return on Assets (ROA) in banking companies listed on the Indonesia Stock Exchange (IDX) during 2019–2023. Using purposive sampling, 20 companies were selected over 5 years (100 observations). Multiple linear regression analysis shows that CR has a significant positive effect on ROA, DER has no significant effect, while TATO has a significant negative effect on ROA.

The role of strategic planning plays a crucial role in improving organizational performance as well as in its implementation. This researcher aims to examine the role and implementation of strategic planning in improving organizational performance in the context of education through a literature review approach to five selected articles published between 2022 and 2024. The results of this study indicate that the role and implementation of strategic planning act as the main foundation in determining the direction of the organization, ensuring alignment between vision, mission, and operational actions. Effective implementation of this strategic plan requires resource coordination, clear communication, and leadership that is able to motivate and direct time.