Motorcycle engine performance is highly dependent on the air intake system, which plays a crucial role in the combustion process. One common method for improving engine performance is modifying the intake system, either by installing additional devices or adjusting the quantity of incoming air. One innovation that is starting to be widely used is the Jet Ranger, an additional device on the intake duct that is claimed to be able to increase air flow into the combustion chamber. This study aims to determine the effect of the use of Jet Ranger and variations in the quantity of incoming air on the maximum power of a 150 cc motorcycle engine, as well as to analyze the interaction between the two variables. The study was conducted using an experimental method with a two-way factorial approach. The independent variables in this study consisted of two factors, namely the use of Jet Ranger (without Jet Ranger and with Jet Ranger) and variations in the quantity of incoming air divided into four levels (0.008; 0.012; 0.016; and 0.020 kg/s). Maximum power testing was conducted using a Leads dynotest, while the mass of incoming air was calculated based on air velocity measured using a digital anemometer. The test data were statistically analyzed using a two-way ANOVA to identify the effect of each factor and the interaction between them on engine power. The results of the study indicate that the use of Jet Ranger significantly increases engine power. Variations in the quantity of intake air also significantly affect the power generated. In addition, the interaction between the use of Jet Ranger and the quantity of intake air is proven to have a significant impact on increasing the maximum engine power. These results are in line with the theory of intake systems which states that increasing optimal air flow can increase the volumetric efficiency of the engine, and are supported by findings from previous studies. Therefore, these findings can be used as a reference in the development of air intake systems on motorcycles to achieve more optimal engine performance.

Ariezta Art is a micro-enterprise in Sidorejo Village, Pemalang Regency, producing handmade resin-based crafts. The business faces several challenges, such as limited digital marketing skills, unsystematic product design, and lack of basic financial recording. This community service program seeks to empower Ariezta Art through digital promotion training, product design assistance aligned with market demands, and basic financial literacy education. The implementation stages include identifying partner needs, preparing relevant training modules, and evaluating program outcomes. Results show improved partner capability in utilizing social media for promotion and recording daily financial transactions. Additionally, product designs have become more attractive and market-oriented. This program is expected to contribute to strengthening the competitiveness and business continuity of Ariezta Art, helping the MSME face the dynamic demands of the creative market.

The high rate of employee turnover in the café business, along with café Sapa Seduh's record-high turnover of 40% in the past year, prompted the research. The study used a quantitative methodology with an explanatory focus. With complete sampling as the method of selection, the population comprised all eighteen permanent employees. A validated and reliable Likert-scale questionnaire was used to gather data. Multiple linear regression in SPSS version 26 was used to analyse the data. The findings indicated that there was a significant partial effect of the workload variable on turnover intention (significance value 0.000 < 0.05), but no significant partial effect of the compensation variable (significance value 0.481 > 0.05). Nevertheless, the combination of workload and compensation had a notable impact on turnover intention (significance value 0.000 < 0.05), as determined by an Adjusted R Square value of 0.851. These results show that employees' intention to leave is most affected by workload. Consequently, in order to lower turnover rates, management should prioritise the equitable management of staff workloads.

This study examines the impact of the digital E-Performance Attendance System, also called Aku Hadir Application, and additional income for civil servants on employee performance at the Karanganyar Regency Public Works Agency, with job satisfaction as an intervening variable. In reaction to the government's efforts to improve governance through performance-based payments, this study examines the impact of implementing an ERP-based attendance and appraisal system on worker satisfaction and productivity. By adopting a quantitative explanatory method, data was collected from 50 civil servants with the help of a structured questionnaire and then analyzed by multiple linear regression with the help of SPSS. The results show that the E-Performance system has a positive effect on performance and job satisfaction, where job satisfaction partially mediates the relationship. In contrast, additional income has no significant direct or indirect impact on performance. The results emphasize the important role of open digital performance monitoring and job satisfaction in improving the productivity of civil servants, with important implications for policy makers to better manage government human resources.

The purpose of this study is to develop and build an online information system for making a Certificate of Inability to Pay (SKTM) to overcome the problem of manual service procedures in Bercak Village. The approach used in building this system is the waterfall model which includes the stages of needs analysis, design, implementation, testing, and maintenance. Data collection is carried out through observation, interviews, literature reviews, and documentation. Through this system, the community can apply for SKTM online, making it easier for administrators to verify and village heads to issue SKTM. In addition, WhatsApp is also used to send notifications when the letter has been completed. The results of the blackbox test show that each feature runs as expected. This method is believed to be able to improve the accuracy, efficiency, and transparency of village administration services.

Salah satu permasalahan lingkungan yang dominan saat ini adalah limbah deterjen dari kegiatan pencucian. Kebanyakan deterjen konvensional menggunakan surfaktan  dalam bentuk fosfat, alkil benzena sulfonat, dietanolamin, alkil fenoksi.  Semua senyawa tersebut merupakan  senyawa yang berasal dari sumber daya tak terbarukan, beracun, dan berbahaya bagi lingkungan.  Bahan alternatif sumber surfaktan yang ramah lingkungan adalah biji lerak dan daun waru. Kandungan utama lerak adalah saponin yang berfungsi sebagai detergen. Daun waru dapat digunakan sebagai detergen alami, karena memiliki kandungan saponin, flavonoid, polifenol, dan tanin. Saponin pada daun waru dan biji lerak menghasilkan busa yang berfungsi sebagai bahan pencuci dan berperan sebagai surfaktan pada pembuatan detergen yang            ramah lingkungan. Tujuan kegiatan ini adalah melakukan edukasi dan memberdayaan masyarakat dengan membuat sabun cair ramah lingkungan, pengemasan serta pemasaran produk. Metode kegiatan yang akan dilakukan adalah sosialisasi, pembuatan sabun cair, memberikan ketrampilan dan mempraktekkan pembuatan sabun cair, pengemasan dan pemasaran. Para Ibu-ibu menunjukkan antusiasme yang tinggi dalam menerima materi yang disampaikan, terutama dalam pemahaman mengenai materi penyuluhan. Oleh karena itu pemakaian sabun lerak ini menjadi pilihan yang tepat bagi warga PKK RT 01 untuk beralih ke hidup ramah lingkaran dan lebih sehat karena pembuatan sabun ini sangat mudah dibuat sendiri, murah dan memiliki banyak manfaat.

 
This study focuses on strategies to prevent stunting prevalence, which to date have shown inconsistent results. Several previous studies have stated that stunting prevalence cannot be prevented optimally because it is influenced by other factors, such as early marriage and low family literacy. This study uses a qualitative approach with in-depth interview techniques with a number of key informants, including families, community leaders, and health workers. The purpose of the interviews was to gain a deeper understanding of the effectiveness of stunting prevention efforts. The research findings show that the mechanism for preventing stunting prevalence is starting to show improvement. However, these efforts will be more optimal if there is synergy between families, community institutions, and the government in providing education, especially regarding the negative impacts of early marriage. Multi-party collaboration is an important key in building collective awareness and strengthening efforts to prevent stunting sustainably.

Learning activities can run smoothly if accompanied by the availability of appropriate learning media. Learning in the Machining Technology course requires direct practical activities, for example in understanding the use of lathes. The limitations of students' mastery of knowledge when facing the teaching and learning process that tends to be lecture-oriented, causing students' lack of understanding during practice. Learning media that is less interesting causes failure in delivering material, thereby reducing students' interest in learning. This study aims to examine the effectiveness of Real Time Augmented Reality (RT-AR) Lathe media in the learning process of the Machining Technology course in the D-III Study Program, Department of Mechanical Engineering, Faculty of Engineering, Padang State University (FT-UNP). RT-AR media is designed to present interactive visualizations that describe the lathe work process in real time, so that it is expected to improve students' conceptual understanding and practical skills. The study used a quasi-experimental method with a pre-test and post-test design in two groups: the experimental group using RT-AR media and the control group using conventional learning methods. The results showed that there was a significant increase in the learning outcomes of students in the experimental group compared to the control group. In addition, RT-AR media is also able to increase students' motivation and active participation during the learning process. These findings indicate that RT-AR Lathe media is an effective and relevant learning innovation to be applied in vocational engineering education, especially in mastering lathing material.

The purpose of the study was to determine the implementation of the Village Head's Leadership Style in Increasing Community Participation in Drainage Infrastructure Development in Ampibabo in Ampibabo Village, Ampibabo District, Parigi Moutong Regency. The type of research is descriptive with a qualitative approach; purposive informant determination technique; data collection through observation, interviews, documentation; and data analysis techniques using interactive models, namely data condensation, data presentation, and drawing conclusions. The results of the study showed that the Village Head's Leadership Style in Increasing Community Participation in Drainage Infrastructure Development in Ampibabo in Ampibabo Village, Ampibabo District, Parigi Moutong Regency has been implemented but has not been optimal. This can be seen in the instructive and consultative leadership styles, both of which have been implemented well. While the participation and delegation leadership styles have not been implemented as expected. The village head is expected to be able to encourage the community to participate so that drainage development runs quickly and smoothly for the progress of Ampibabo Village development. In addition, village officials (subordinates) can also increase their knowledge through formal and informal education so that the delegation given by the village head can be understood so that the task runs well.

This study examines the influence of international tax practices (measured by transfer pricing) and tax risk management (measured by effective tax rate) on corporate earnings quality (measured by earnings persistence). It also investigates the moderating role of tax risk management in the relationship between international tax practices and earnings quality. Utilizing panel data and multiple linear regression analysis on 650 firm-year observations from manufacturing companies listed on the Indonesia Stock Exchange, Bursa Malaysia, Philippine Stock Exchange, and Singapore Exchange, this study finds that tax risk management has a positive effect on earnings quality. However, the results do not provide sufficient evidence to support the hypothesized association between international tax practices and earnings quality, nor do they confirm a moderating effect of tax risk management in this relationship. These findings suggest that while tax risk management is an important factor considered by firms in maintaining consistent and persistent earnings, its role may not be sufficient to alter the influence of international tax strategies on earnings quality.