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This study analyzes the effectiveness of using BNI Bank’s QRIS in improving transaction convenience and efficiency at the canteen of Universitas 17 Agustus 1945 (UNTAG) Surabaya. The research was conducted by a team led by Ida Ayu Nuh Kartini, S.E., M.M., together with students of the Management Study Program, during November–December 2025. The rapid development of digital banking has encouraged the adoption of QRIS as a standardized non-cash payment system regulated by Bank Indonesia. This study aims to examine the level of QRIS BNI utilization, assess ease of use (application access and QR code scanning), and evaluate transaction efficiency, including time savings, queue reduction, and error minimization. A descriptive quantitative approach was employed using a survey method with a five-point Likert scale questionnaire distributed to 36 respondents consisting of students, lecturers, and administrative staff who had used QRIS at the canteen. Primary data were analyzed descriptively using averages and percentages, supported by relevant literature. The results show that QRIS is perceived as highly effective, with scores above 90% for ease of use (95%), transaction speed (92.78%), reduction of change-related issues (97.78%), support for digitalization (97.22%), and security (91.11%). The main limitation identified is dependence on internet connectivity (85%). Overall, respondents strongly support the full implementation of non-cash payment systems at the campus canteen.

Physical fitness is a fundamental determinant of athletic performance and is strongly influenced by dietary intake and lifestyle behaviors. Adequate protein consumption is essential for muscle development and energy metabolism, whereas smoking has detrimental effects on lung function and aerobic capacity. This study aimed to explore the relationship between protein intake and smoking habits with physical fitness, measured by maximal oxygen uptake, among athletes of Persela Football Academy under-eighteen. A quantitative approach with a cross-sectional design was applied, involving adolescent male athletes. Protein intake was assessed using a semi-quantitative food frequency questionnaire, smoking habits were obtained through structured interviews, and maximal oxygen uptake was measured using the multistage fitness test. Findings revealed that the average daily protein intake of athletes was relatively high, while the mean maximal oxygen uptake score fell within the good category. Correlation analysis demonstrated a significant association between protein intake and aerobic fitness, as well as between smoking habits and aerobic fitness. The results indicate that lower protein intake and higher smoking frequency are linked to reduced physical fitness capacity. This study highlights the importance of nutritional interventions and healthy lifestyle promotion as integral components in the development of youth athletes to optimize performance and prevent decline in fitness.

The technological growth at the present time is so rapid, one form of technological advancement is an online game. An online game is a game played online using the internet. Young people who play the online game feel that playing an online game will reduce the load of thought gained from the environment. If a youth is dependent on playing  online games it will be bad for the teen. So it requires the role of the people around him to monitor and direct the youth away from the negative effects of online gaming. This study aims to determine the relationship between online game addiction and verbal aggression behavior in adolescents in Lubuk Basung District. This study uses quantitative methods with the research design used is correlational test research.The population in this study are teenagers who like to play PUBG online games. The sampling technique used purposive sampling with a total of 103 adolescents who played pubg mobile online games. In collecting data using an online game addiction scale with a verbal aggression scale. The results of data analysis obtained a correlation of sig = 0.137 (sig <0.05). These results show that there is a significant relationship between online game addiction and verbal aggression behavior  

In today's digital era, the role of social media in marketing has become increasingly significant, but there is still a lack of research exploring its influence on traditional products such as iced tea poci. Marketing strategy is a method of generating profits and goals. By improving the products the company sells. This strategy is one of the marketing mix strategies that companies often consider.  This Poci iced tea UMKM was founded in 2022 and is located in the Pelita Bangsa University canteen. The aim of this research is to examine the influence of social media and price on purchasing decisions for iced tea pots, both partially and simultaneously. A quantitative research approach is applied in this research which focuses on a causal approach. Determining the sample used was through incidental/accidental sampling techniques. Data from 100 respondents was collected using a questionnaire as a data collection instrument and to analyze the data, multiple linear regression analysis techniques were used. The results of this study show that (1) social media has a positive and significant effect on the decision to purchase iced tea teapots (2) price has no effect on the decision to purchase iced tea pots (3) social media and price have a significant effect on the decision to purchase iced teapots. These results indicate that the marketing mix and marketing strategy are very important in driving sales of the Teh Poci beverage business.

Canteen facilities and infrastructure is an important component in efforts to support school health so it needs to be considered in accordance with adiwiyata standards. Things to consider include; canteen construction, sanitation facilities, pest and insect control, as well as kitchens, cooking and food equipment and supplies. SMP Negeri 40 Jakarta is one of the schools that implements a healthy canteen. The purpose of this study was to provide an overview or describe the facilities and infrastructure of healthy canteen implemented by SMP Negeri 40 Jakarta. The type of research used in this study is a descriptive method with a quantitative approach. included in the good categorization with the percentage of accumulated data by 75%. This shows that the school facilitates canteen facilities and infrastructure well. Based on the results of the study, it is known that there are several indicators of canteen sanitation facilities that are in poor condition. In addition, there are still traders who lack awareness in accommodating food that is not in accordance with standards.

 This research aims to determine language errors in the field of morphology in food banner media. This research is qualitative research with content analysis methods. The data used in this research are sentences containing linguistic errors at the morphological level on food banners in the Bina Insan Islamic School Canteen. The data source used is the food banner in the Bina Insan Islamic School Canteen. Data collection techniques use reading and note-taking techniques. The data analysis technique is using data reduction techniques, data presentation and drawing conclusions. Based on the data found and analyzed, it can be concluded that the writing on food banners often contains language errors at the morphological level related to word writing. This research examines five data related to errors in adding phonemes, subtracting phonemes, errors in standard and non-standard words, and word abbreviations.

 This research aims to determine language errors in the field of morphology in food banner media. This research is qualitative research with content analysis methods. The data used in this research are sentences containing linguistic errors at the morphological level on food banners in the Bina Insan Islamic School Canteen. The data source used is the food banner in the Bina Insan Islamic School Canteen. Data collection techniques use reading and note-taking techniques. The data analysis technique is using data reduction techniques, data presentation and drawing conclusions. Based on the data found and analyzed, it can be concluded that the writing on food banners often contains language errors at the morphological level related to word writing. This research examines five data related to errors in adding phonemes, subtracting phonemes, errors in standard and non-standard words, and word abbreviations.

In the era of digitalization and rapid technological development, payment systems have undergone significant transformation. One innovation in payments is the Quick Response Code Indonesian Standard (QRIS), which has become increasingly common in various sectors. An in-depth understanding of the implementation of QRIS in the new canteen environment of Jakarta State University will provide valuable insight into how this new technology impacts the transaction process. This research uses a qualitative descriptive approach, namely by describing and analyzing the problems found. Data collection techniques are based on primary data and secondary data. Primary data in this research was obtained by conducting observations, interviews, and documentation, while secondary data was obtained through books, previous research, and articles related to research. The purpose of this research is to evaluate the extent to which the implementation of QRIS in the New Canteen at Jakarta State University has succeeded in achieving the initial goal of improving the payment process, understand the positive impacts that have been generated by the use of QRIS, including increased efficiency, transaction security and convenience for users, and identify obstacles. that may arise in implementing QRIS, such as network problems or additional costs, which may affect its effectiveness. From the results of this research, it can be seen that the implementation of QRIS in the New Canteen at Jakarta State University has gone well even though several obstacles need to be corrected, such as a lack of consistency in payment rules and a lack of socialization about QRIS. The Policy and Use of QRIS in the new canteen at Jakarta State University has succeeded in achieving order, efficiency, and security in the payment process, simplifying transactions, reducing dependence on cash, reducing the risk of errors, and increasing sales in the canteen. Although there are challenges such as network problems, inadequate smartphones, and administration costs. It is highly recommended that sellers and managers of the New Jakarta State University Canteen continue to implement quality improvements properly. It is necessary to carry out intensive outreach to students and canteen staff regarding QRIS and how to use it, and it is important to ensure that the QRIS system runs smoothly and safely. Thus, the implementation of QRIS in the New Canteen at Jakarta State University provides significant benefits and has the potential to continue to be improved.

Teenagers experience problems due to not achieving needs, for example they want to be recognized as adults but their behavior still looks like children.  If adolescents fail to develop a sense of identity, then adolescents will lose their way and have a bad impact on their development. Frustration can lead the individual to aggressive behavior because frustration for the individual is an unpleasant situation and the individual wants to overcome or avoid it in various ways, notonly in an aggressive way.  The purpose of the study was to determine the factors causing the emergence of prejudiced and frustrated relationships with aggressive behavior of adolescents.  This study utilizes the study literatur review. Based on the results of the study, it is stated that the causes of adolescents to take aggressive actions are due to: (1) Internal Factors (a) Weak Self-Control can be difficult to control emotions, therefore a person who has  weak self-control will easily act aggressively on anyone. (b) The occurrence of frustration Because a bad event causes the subject to become frustrated with his current life. (c) Gender differences.