Purpose: This research aims to determine the initial problem solving ability of land cadets in applied mathematics courses. Methods: This research method is descriptive quantitative, where this method is taken to describe the condition situation with descriptive quantitative description. Abalysis: The research subjects were cadets of the D-IV Land study programme of the National Land College who took applied mathematics courses in the 2024/2025 academic year. The research data studied in this study are cadets' answer sheets on the pre-test. Result and discussion: From the results of the study, it was concluded that the problem solving ability of cadets was in the "very poor" category with the most dominant indicator of problem solving ability was the ability to plan problem solving, which was 74.62%. In addition, the indicators of problem-solving skills that are still lacking are indicators of understanding the problem, planning the problem, and indicators of checking back taken, which respectively have a mastery percentage of 16.5, 9.5% and 2% and 54.62%. Conclusion: With this we know the condition of students, weaknesses, strengths and what to do in order to improve problem solving skills.

Menstrual hygiene is an important component of personal hygiene that plays a significant role in an individual's health behavior, helping to prevent disorders in reproductive organ function. This study aims to determine the effect of health promotion on the level of menstrual hygiene knowledge among children aged 13–15 years. The study design used a pre-experimental approach with a one-group pre-posttest design. The population consisted of 110 respondents, and using simple random sampling, 83 respondents were selected. Data for this study were collected using a knowledge level questionnaire. After tabulation, the data were analyzed using the Wilcoxon test with p < 0.05. The results showed that nearly all female students (108, or 98.2%) had insufficient knowledge of menstrual hygiene before receiving health promotion. Almost all female students after receiving health promotion had adequate knowledge of menstrual hygiene, totaling 88 (80.0%). Based on the above results, the effect of health promotion on the level of knowledge of menstrual hygiene among children aged 13-15 years was found to be p = 0.000 (p < 0.05). This indicates that health promotion has an effect on the level of knowledge about menstrual hygiene among girls aged 13–15 years. Therefore, it is hoped that female students will always maintain their genital hygiene by practicing proper personal hygiene in accordance with the guidelines provided by healthcare professionals, especially during menstruation.

In today's digital era, awareness of mental health issues is growing significantly. Many individuals are now more open about sharing their psychological conditions through written texts on social media, forums, and surveys. This phenomenon presents an opportunity to leverage technology for the automatic detection of mental disorders through text analysis. This study aims to implement the Bidirectional Encoder Representations from Transformers(BERT) model to identify mental health conditions such as depression, bipolar disorder, anxiety, suicidal tendencies, and others. The dataset was sourced from Kaggle and underwent several preprocessing stages, including data cleaning, tokenization, and text classification model training. This BERT model achieved strong performance, with an accuracy of 91% and an average F1-Score of 0.91. These results demonstrate the model's effectiveness in identifying various psychological expressions. The findings highlight the potential for developing early detection systems that are faster, more objective, and widely accessible. However, this study acknowledges limitations in dataset diversity, suggesting future work to incorporate more varied data sources and explore other NLP models to enhance detection accuracy and coverage.

This study aims to examine the influence of Green Human Resource Management (GHRM) Practices and Self-Efficacy on the Environmental Performance of millennial employees in the banking sectorJakarta Barat, with Green Innovation as a mediating variable. As the dominant workforce today, millennials play a crucial role in supporting organizational sustainability. This research uses a quantitative approach through a survey of millennial employees in several banking institutions. The findings show that Green HRM Practices and Self-Efficacy have a positive and significant effect on Environmental Performance. Furthermore, Green Innovation is proven to mediate the relationship between these variables and environmental performance. These results suggest that environmentally focused HR policies and strong employee self-belief can drive green innovation, which in turn enhances environmental performance. The practical implication of this research encourages banking institutions to strengthen GHRM practices and foster a work culture that supports green innovation among millennial employees.

The research purpose is for developing effective mathematical logic learning model to early childhood through play activities using natural material media. This model is designed to stimulate children's logical thinking and mathematical abilities by utilizing natural materials such as shells, seeds, banana fronds, leaves, and stones as concrete and engaging learning media. Function of those materials is hope for enhancing children's interest and motivation in learning mathematics while considering their cognitive development stages comprehensively. The research method employed is a development research approach with stages of design, validation, and trial of the developed learning model. Validation is conducted by experts in education and early childhood learning to assess the feasibility of the model, while trials involve teachers and students at TK Negeri 1 Dharma Wanita Desa Eti, SBB Regency. The results indicate that this learning model is valid and practical for use, and it positively influences the improvement of children's mathematical logic abilities. These findings provide significant contributions for make developing of enjoyable also effective mathematics learning in early childhood education with a play-based approach using natural media. Teachers and educators can adopt this model to create an interactive learning environment that aligns with children's developmental characteristics. Additionally, the use of natural material media also supports children's awareness of their surrounding environment. Therefore, this model is a viable alternative to be developed and implemented in early childhood education.

The purpose of this study is to investigate how customers' purchasing decisions at Abu Rohmah Store are influenced by store layout and rational motivation. The study uses a quantitative survey approach, gathering information from 50 respondents via questionnaires. Multiple linear regression analysis was used to examine the gathered data. The results indicate that store layout has a significant effect on consumers' purchasing decisions, with a regression coefficient of 0.814. Furthermore, customers' rational motivation is also significantly influenced by store layout, as evidenced by the regression coefficient of 0.347. According to the coefficient of determination, 64% of the variation in consumers' purchase decisions can be explained by these two variables. These results aid in the creation of marketing plans and the enhancement of offerings in the neighborhood retail industry.

This study aims to examine the relationship between healthy food consumption and character development in students. The research is based on the premise that healthy eating plays a vital role not only in physical well-being but also in shaping students' behavior and moral values from an early age. A quantitative descriptive approach was used, employing a theoretical and conceptual analysis design. The findings indicate a strong relationship between healthy eating habits and the development of positive character traits such as discipline, responsibility, and honesty. Based on a regression analysis simulation, healthy food consumption was found to contribute approximately 46% to character formation. These results highlight the importance of integrating healthy eating patterns into character education programs both in schools and at home. The study recommends collaboration among schools, parents, and government bodies to promote healthy eating as a foundation for building strong and positive character in young generations.

Teenager’s obesity is public health issue that needs attention because of the increasing risk of other diseases such as diabetes. This study purposes to build a system that can predict the risk of teenager’s obesity. The data is in the form of a secondary dataset that has 17 features that include eating habits, physical activity, and others. Random Forest is used because of its ability to handle high-dimensional data and produce accurate classifications. This system is console-based, where users can add their lifestyle data and get results in the form of obesity predictions with low, medium, and high levels. The results of the model evaluation show very good results, which 90%  accurate and high consistency, recall, and f1-score values. This method shows stable and competitive performance compared to other algorithms such as Decision Tree and KNN. So the results are expected to be used as a learning and prevention tool to detect the risk of obesity in adolescents early on.

This study aims to understand the meaning and symbolism of the saur matua ceremony performed by the Batak Toba community, as well as to explore how this tradition reflects the cultural values ​​of the Batak community, such as hamoraon (wealth), hagabeon (many descendants), and hasangapon (honor). The method used in this study is a descriptive qualitative approach, with data collection techniques through in-depth interviews and documentation studies. Interviews were conducted with informants who are experienced in carrying out the saur matua ceremony, as well as literature studies relevant to the research topic. The collected data were analyzed thematically, to identify the main elements in the saur matua ceremony and understand its meaning in the context of the social and cultural life of the Batak Toba. The results of the study show that the saur matua ceremony is not just a death ritual, but a celebration of a person's success in life. Death is seen as an achievement, where the deceased is considered to have succeeded in fulfilling customary expectations in social, material, and descendant aspects. This ceremony reflects a view of life that values ​​honor and kinship, and provides a new meaning to a joyful death.

Adolescence is an important period in the formation of a person's personality, where individuals tend to be easily influenced by the social environment including associations. Unhealthy associations have the potential to cause various problems such as peer pressure, low self-confidence, and the emergence of deviant behavior. This service activity aims to increase the awareness and understanding of Muhammadiyah 6 Samarinda Junior High School students regarding the importance of applying ethics in society through the provision of classical guidance services. The activity, which carries the theme "Ethics in Society: Fun Friends Are Not Toxic", was held for three days on May 14-16, 2025, with three main sessions lasting 150 minutes every day. The material provided includes the introduction of the concept of social ethics, identification of healthy and unhealthy associations, ethical values in Islam, and ethics of behavior on social media. Through participatory and reflective methods, students are invited to actively discuss, conduct social simulations, and reflect on the values learned. The results of the evaluation showed an increase in student understanding, changes in social attitudes, and openness in communicating with guidance and counseling teachers.