This research is motivated by the low interest of students in learning flat building materials in mathematics learning in elementary schools. Geometry material is often considered abstract by students, so contextual and interesting learning media are needed. One alternative that can be used is local culture-based media. This study aims to develop a miniature diorama media of the Batak Karo Traditional House as a learning tool for flat building in grade IV of elementary school and to determine the feasibility of the media based on expert validation, as well as the responses of teachers and students. This research is research and development (Research and Development) with ADDIE (Analysis, Design, Development, Implementation, Evaluation). The test subjects consisted of grade IV students and teachers at an elementary school in Medan City. The validation results show that the developed media is very feasible to use. Media expert validation obtained a feasibility score of 88%, and material expert validation obtained a score of 87%. The response of teachers and students to the media was also very positive. The use of dioramas based on local culture has been proven to increase students' attraction to the material and facilitate the understanding of geometry concepts. The diorama media of the Batak Karo Traditional House is suitable for use as a thematic learning medium, especially for flat building materials in grade IV of elementary school, as well as a means of preserving local cultural values in education.

In an effort to create a safe and productive work environment, the Behavior Based Safety (BBS) approach has become one of the main strategies in occupational safety management, especially in high-risk industries such as logistics. This study aims to evaluate the effectiveness of the implementation of the Behavior Based Safety (BBS) method in shaping the safe behavior of workers at PT XYZ, a logistics company in Balikpapan. The BBS method is an occupational safety approach that focuses on individual behavior in preventing work accidents. This study uses a qualitative method with a descriptive approach through direct observation and interviews with management and workers. The results of the study indicate that the implementation of BBS at PT XYZ has not been running optimally. Some of the main obstacles found include the lack of standard operating procedures (SOPs), lack of occupational safety training, weak communication between management and workers, and minimal involvement of workers in a safety culture. Although there is a commitment from management, improvements are still needed in the aspects of socializing safety policies, providing written documents, and ongoing training to build a safe and sustainable work culture.

Increasing electricity consumption in households is one of the problems faced by many countries, including Indonesia. This can lead to increased energy costs and negative environmental impacts. The K-Means method is one of the data mining methods that can be used to analyze electricity consumption patterns. This method works by grouping data into several groups based on the similarity of the pattern. By using the K-Means method, electricity consumption patterns in households can be better identified. This can provide valuable information to improve the efficiency of electricity use. This can help the government to formulate appropriate policies to improve the efficiency of electricity use in households.Electricity companies can use this method to identify electricity consumption patterns based on the type of equipment used. This can help electricity companies to develop more effective education programs to raise public awareness about the importance of saving energy. Thus, the K-Means method can be a useful tool to improve the efficiency of electricity use in households. 

Evaluating changes in public perceptions of gold investment before and after price increases is the objective of this study. The background of this study rests on the assumption that gold price volatility can affect an individual's interest in and view of gold as an investment vehicle. This study used a quantitative approach by distributing questionnaires using a Likert scale to 50 respondents, the results of which were analyzed using the paired sample t-test. The results of the analysis show that there is no statistically significant difference in people's perceptions before and after the gold price increase (significance value 0.363 > 0.05). The findings of this study indicate that the public still views gold as a safe and stable investment asset in the long term, regardless of price changes in the short term. The results of this study can be used as a reference by market participants and financial planners to understand the tendency of public attitudes towards gold investment.

Handicraft in the form of flower bead bracelets (Flowers Beads Bracelet's) is a creative product that combines aesthetic elements and manual skills in one functional work of art. This bracelet is not only used as a fashion accessory, but also represents artistic and cultural values ??in every detail of its design. This research or project aims to explore the manufacturing process, material selection, bead assembly techniques, and the potential selling value of the bracelet in the context of the creative industry. The results show that the design of flower bracelets made of beads has high visual appeal, is flexible to fashion trends, and can be developed as a superior product of craft-based MSMEs. In addition, the use of digital media in promotion also encourages the competitiveness of this product in both local and global markets.

The purpose of this study was to examine the phenomenon of depression in children with a focus on early identification, risk factors, and effective treatment approaches. The method used in this study was a narrative literature review that synthesized findings from various scientific journals, academic books, and reports from world health organizations related to depression in children. The results of the analysis indicate that depression in children is a real clinical condition but is often undiagnosed due to differences in symptoms compared to adults and lack of public awareness. The main risk factors include childhood trauma, genetics, and dysfunctional family dynamics. Evidence-based approaches such as cognitive-behavioral therapy (CBT), family therapy, and psychosocial interventions have shown effectiveness in reducing symptoms. The conclusion of this study emphasizes the importance of early detection and intervention as a preventive measure to minimize the long-term impact on children's mental health.

This study is motivated by the low learning outcomes of students in science subjects, particularly in the topic of energy transformation in fourth-grade elementary school. The lack of student engagement during conventional teaching methods is considered a major factor contributing to poor conceptual understanding. Therefore, this research aims to examine the effectiveness of interactive learning in improving students’ academic performance on the topic. A quantitative approach with a descriptive method was employed. The participants were fourth-grade students at a public elementary school, with data collected through learning outcome tests and classroom observation. The results showed that the implementation of interactive learning significantly enhanced student participation, clarified the concept of energy transformation, and promoted deeper understanding. Students’ average test scores demonstrated a notable improvement after the interactive learning approach was applied. These findings suggest that actively engaging students in the learning process can serve as an effective strategy to address low academic performance in specific science topics. The implications highlight the importance for teachers to adopt more varied and engaging teaching methods to improve the quality of elementary science education.

This study aims to analyze the influence of core values of Morality, work facilities, and work- life balance on employee commitment, with mental well-being as a mediating variable. This study was conducted on employees in the Administrative Bureau of the Leadership of the Regional Secretariat of East Java Province using a quantitative approach. Data was collected through a questionnaire of 50 respondents and analyzed using regression tests and Sobel Test to test the mediation effect. The results of the study show that the core values of Ber-Akhlak in work, work facilities, and work-life balance have a positive and significant influence on mental well-being. In addition, mental well-being has a significant influence on employee commitment and mediates the relationship between the three independent variables and employee commitment. Work facilities provide the greatest mediation influence compared to the core values of Moral Character and Work-Life Balance, emphasizing the importance of the role of leaders in supporting the mental welfare of employees in carrying out their work. This finding gives implications that the Administrative Bureau of the Leadership of the Regional Secretariat of East Java Province can increase employee commitment by implementing the core value policy of Ber-Akhlak, supporting work-life balance, and strengthening work facilities. This research also contributes to the human resource management literature by offering a new perspective in supporting employee mental well-being as a strategic factor in increasing organizational loyalty.

Understanding scientific concepts in elementary school, particularly the topic of Earth's layers, remains a challenge due to its abstract nature. Low student interest and difficulty in visualizing geospheric structures highlight the need for more contextual and engaging learning media. This study aims to examine the effect of using audiovisual media on fifth-grade students' understanding of science concepts. A quantitative approach with a quasi-experimental design was employed, involving two groups: an experimental class using audiovisual media and a control class using conventional methods. The analysis revealed a significant difference in concept comprehension between the two groups. Students exposed to audiovisual media demonstrated greater improvement in understanding compared to those taught through traditional methods. These findings suggest that audiovisual media effectively support students in grasping abstract concepts through engaging visual and auditory presentations. The study implies that integrating interactive learning media is essential to enhance the quality of science education in elementary schools.

Efficient management of aircraft parking stands is a critical element in maintaining flight safety at airports. As air traffic increases, the coordination and performance of the Apron Movement Control (AMC) team play a vital role in assigning parking positions to prevent operational delays and potential hazards. This study aims to evaluate the performance of the AMC team in managing parking stands at Yogyakarta International Airport using a descriptive qualitative approach. The assessment was based on five indicators proposed by Robbins & Judge: work quality, work quantity, timeliness, effectiveness, and independence. Data were collected through direct observation, semi-structured interviews, and documentation analysis. The findings indicate that the AMC team consistently performs its duties in accordance with established procedures, responds effectively to sudden operational changes, and demonstrates independent decision-making capabilities. These results highlight the crucial role of the AMC team in ensuring the safe movement of aircraft on the apron. However, challenges such as limited staffing and unanticipated schedule changes still require attention to improve overall operational efficiency.