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This study aims to use the fishbone diagram as a tool to identify the causes of damage to the feeder mechanism of scrap machines and to develop Standard Operating Procedures (SOP) that can improve performance and reduce the level of damage. This diagram is used to evaluate various elements that contribute to the damage of the feeder mechanism, such as human, machine, material, method, and environmental factors. Through this evaluation, the main causes of the damage can be identified, and appropriate corrective actions can be formulated. In addition, this research also aims to design SOPs that ensure more efficient operation of the scrap machine and reduce the likelihood of operational errors. The implementation of mechanism improvements and SOPs is expected to enhance the reliability of the scrap machine, reduce downtime, and increase productivity in the mechanical technology laboratory. The findings of this study are expected to make a significant contribution to the development of management systems and equipment maintenance in both industrial and educational sectors.  

Power system protection plays a crucial role in maintaining the reliability and security of electricity distribution. This study discusses the analysis of coordination between overcurrent relays (OCR) and ground fault relays (GFR) on the Miwon Substation power line. The study aims to determine the optimal setting values ​​for OCR and GFR, so that they can detect and disconnect short circuit faults quickly and accurately. The approach used includes theoretical calculations and simulations to evaluate relay performance under various fault conditions. The results of the study reveal that with appropriate settings, the relay can operate selectively and efficiently, reducing the impact of disturbances and maintaining the stability of the power system.

This research seeks to explore how Part-Time Work and Time Management influence students' academic performance. A quantitative methodology was employed to investigate the relationship between the independent variables, part-time work and time management, and the dependent variable, academic achievement. The study focused on students from Universitas PGRI Wiranegara during the 2021–2024 period who are actively engaged in part-time work. The sample was selected using a probability sampling method, ensuring every student in the population had an equal chance of inclusion. Data collection was conducted through a questionnaire, which underwent validity and reliability testing.  The findings revealed that part-time work significantly affects academic performance, with both positive and negative outcomes, depending on how well students manage their time. Additionally, effective time management proved to be a crucial factor in enhancing academic performance, even when students juggle their time between work and study. Further analysis indicated that both variables collectively have a meaningful impact on academic achievement. This research underscores the critical role of time management skills for students balancing work and study and highlights the importance of institutional support in helping students maintain this balance. 

The aim of this research is to determine the impact of the influence of price and quality of service on customer satisfaction (case study at Mixue Pasar Bersih branch, Jababeka). The research method used is quantitative using hypothesis testing to analyze the relationship between the variables studied. The population used as research objects are consumers who buy Mixue products at the Jababeka Clean Market. Data analysis was implemented in the form of a questionnaire using the SPSS application with the tests used being the Validity Test and Reliability Test. Total respondents were 113 people from 15 questions, considering the questionnaire answers which stated Strongly Agree 23%, Agree 46%, Normal 24%, Disagree 5%, Strongly Disagree 1%. The results of the research state that X1 has an effect on Y and is supported by variable X2 which also has an effect on Y.

The aim of this research is to determine the impact of the influence of price and quality of service on customer satisfaction (case study at Mixue Pasar Bersih branch, Jababeka). The research method used is quantitative using hypothesis testing to analyze the relationship between the variables studied. The population used as research objects are consumers who buy Mixue products at the Jababeka Clean Market. Data analysis was implemented in the form of a questionnaire using the SPSS application with the tests used being the Validity Test and Reliability Test. Total respondents were 113 people from 15 questions, considering the questionnaire answers which stated Strongly Agree 23%, Agree 46%, Normal 24%, Disagree 5%, Strongly Disagree 1%. The results of the research state that X1 has an effect on Y and is supported by variable X2 which also has an effect on Y.

Investment is an important thing in today's era. Many things influence investment decisions including knowledge about investment itself and a person's income. This study aims to determine the effect of Investment Knowledge and Income on Investment Decisions of the Boyolali Community. This study is a quantitative study. using multiple linear regression analysis, through the swimmer test, validity test, reliability test, classical assumption test and F test. The population in this study were residents of Boyolali, Central Java. The sample of this study was 60 samples. The results of this study indicate that investment knowledge and income both have a partial effect on investment decisions.

This study aims to identify the influence of work facilities, workspace layout, and team building on employee performance. Using descriptive quantitative research methods, this study involved employees from two companies: PT Borobudur, Prambanan, and Ratu Boko Temple Tourism Park and PT Naisha Inspirasi Muslimah Yogyakarta. The sample consisted of 80 people, with 40 employees from each company. Data were collected through questionnaires distributed in the form of a paper survey. Analyses were conducted using Statistical Product and Service Solutions (SPSS) version 23.0 to test validity, reliability, multicollinearity, basic assumptions, and multiple linear regression. The research findings show that (1) work facilities have a positive and significant effect on employee performance, (2) work layout has a negative and insignificant effect, (3) team building has a positive and significant effect, and (4) the three variables simultaneously have a significant effect on employee performance.

Employment law education plays an important role in equipping the younger generation, especially high school and vocational high school students, with an understanding of the rights and obligations as prospective workers. This study aims to analyze the relationship between students' understanding of employment law and employment rights and obligations. Using a quantitative approach, data were collected through questionnaires from grade XI students at SMAN 3 Pasuruan, SMKN 1 Pasuruan, and SMK PGRI 2 Pasuruan. The validity results showed that all questionnaire items were valid (100%), while the reliability of the variables showed a Cronbach Alpha value of 0.606 for student understanding and 0.778 for labor rights and obligations. The simple linear regression model showed a significant positive relationship with the regression equation Y = −0.833 + 0.997XY = -0.833 + 0.997X and an R Square value of 0.600, which means that 60% of the variation is explained by the model. This study confirms that employment law education has a real impact on students' legal awareness, supporting their preparation to face the world of work with a better understanding

Academic information portals have an important role in supporting the academic process of students in higher education. This study aims to analyze the level of student satisfaction with the academic information portal of the State Islamic University of North Sumatra (UINSU). This study uses a literature-based approach by referring to previous research in the last five years (2019–2024). The results of the analysis show that reliability, responsiveness, data security, information completeness, and interface design are the main aspects that affect the level of student satisfaction. The recommendations given include improving system stability, developing interactive features, and strengthening user data protection.