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Social media is one form of technological advancement that has become an integral part of students’ lives, including university students. Its use is not limited to communication and information sharing, but it may also generate psychological effects that influence both physical and mental health. The purpose of this review is to identify and explain the psychological impacts of social media use through appropriate theoretical approaches, which serve as a foundation for discussing the research findings. This study employs a literature review method by examining various academic books and relevant scientific articles. The findings indicate that excessive use of social media has the potential to cause psychological problems among university students, such as social comparison behavior, cyberbullying, decreased sleep quality, and reduced learning productivity. These issues are influenced by several factors, including the intensity of social media use, the type of content accessed, and individuals’ ability to manage emotions and time. Furthermore, uncontrolled social media use may lead to difficulties in social relationships, increased procrastination, poor time management, and reduced self-control in using social networking platforms. Therefore, students are encouraged to develop healthier patterns of social media use to reduce the risk of psychological disturbances. This review is also expected to assist healthcare professionals in understanding the relationship between the intensity of social media use and the occurrence of depressive symptoms among university students.

The Myers-Briggs Type Indicator (MBTI) is one of the personality assessment tools that is often used to identify individual psychological tendencies, including in the context of higher education. In the student environment, MBTI is widely used as a means of self-introduction, adjustment of learning styles, increasing the effectiveness of group work, and career planning. This article aims to examine the relevance of the application of MBTI among students using a literature study approach. The research method used is in the form of a review of various literature sources, such as scientific journals, books, and academic articles that discuss the basic concept of MBTI, its implementation in the field of education, and critical views regarding its limitations. The results of the study show that MBTI has a fairly relevant role as a non-diagnostic instrument in helping students understand their potential, learning preferences, and social and academic interaction patterns. In addition, the appropriate use of MBTI can support improved learning quality, teamwork effectiveness, and academic counseling services. However, a number of literature highlights the limitations of MBTI, especially regarding aspects of validity and reliability, so it is not recommended to be used as the sole basis for academic or psychological decision-making. Thus, MBTI remains relevant for students if used wisely, contextually, and based on a strong scientific foundation to support students' academic and personality development.

This study aims to determine the ability of students' conceptual understanding after the application of the Project Based Learning (PjBL) model on pyramid material in class VII of Muhammadiyah Pagar Alam Middle School in the 2025/2026 Academic Year. The subjects in this study were 30 students using the pre-experimental design method of one group posttest only type. Data collection techniques used in this study include tests and documentation. The data analysis technique is a quantitative descriptive analysis of all collected research data. Starting the stages carried out after learning using the Project Based Learning (PjBL) model, the percentage per indicator of students' conceptual understanding was obtained with the achievement of: indicators restating the concept of 59.12% indicators providing examples and non-examples of 78.33, and problem solving indicators of 83.06%. So it can be concluded that the use of the Project Based Learning (PjBL) model is effective on the conceptual understanding ability of class VII students of Muhammadiyah Pagar Alam Middle School in the 2025/2026 Academic Year with an average percentage reaching 75.91 which is in the good category.

This research aims to analyze the quality of electronic services (E-Service Quality) on user satisfaction of the DANA digital wallet application in the West Jakarta area. The evolution of financial technology (fintech) in Indonesia has encouraged rapid growth in the use of digital wallets, including DANA which is recorded to have more than 200 million users by 2024. However, this rapid growth is still marred by a number of user complaints regarding system reliability, service response speed and transaction security. Therefore, this study is important to evaluate how much e-service quality dimensions influence user satisfaction levels. The research method used is a quantitative approach with an associative type of research. Data was collected through questionnaires from 100 respondents who were active users of the DANA application in the West Jakarta area using a purposive sampling technique. Data analysis was carried out using SPSS software through validity tests, reliability tests, and simple linear regression analysis. The research results show that E-Service Quality has a positive and significant effect on user satisfaction of the DANA application with a coefficient of determination (R Square) of 0.907, which means that 90.7% of the variation in user satisfaction can be explained by the E-Service Quality variable, while the remaining 9.3% is influenced by other factors outside the research model. The results of the significance test (t test) show a significance value (Sig. < 0.05) which indicates that the influence of E-Service Quality on user satisfaction has been proven to be statistically significant. The results of this study are expected to serve as evaluation material for DANA application managers in improving the quality of digital services, particularly in terms of efficiency, system reliability, security, and user responsiveness. Furthermore, this research is expected to provide theoretical contributions to the development of studies in the field of information systems and digital service management.

Education is important because it provides knowledge and skills that are essential for self-development, character building, improving people's lives, and contributing to the progress of the nation and state. YouTube is a platform used by many people for entertainment and to relieve boredom. YouTube also offers a wide variety of videos and content, ranging from video blogs, entertainment videos, music, to educational videos. Pragmatics is a study that focuses more on what the speaker wants to convey through their speech, not just studying the meaning of words or phrases separately. In pragmatics, there are several terms of speech act analysis, implicature, deictics, presupposition, and politeness. In this study, the researcher analyzed the pragmatics of deictics. The research is titled “Pragmatic Deixis in the Booklist Playlist on Maudy Ayunda's YouTube Channel.” The researcher found three types of deixis, including 163 instances of personal deixis, 5 instances of place deixis, and 2 instances of time deixis. The research method used was qualitative description.

This research explores assertive speech acts found on the Satu Persen YouTube Channel, particularly in the video titled “Strategies to Increase Productivity.” Assertive speech acts are considered significant as they serve to deliver information, clarification, and recommendations that can influence the audience’s perceptions and behaviors. The main objective of this study is to identify the forms of assertive speech acts that appear and explain their functions in reinforcing educational and motivational messages. This study employed a qualitative descriptive approach using observation and note-taking techniques. The data, taken from utterances in four purposively selected videos, were transcribed and categorized according to the types of assertive speech acts. The findings reveal a total of 194 assertive speech acts encompassing various forms, including stating, demanding, admitting, reporting, showing, mentioning, testifying, and speculating. Among these, the stating form appeared most frequently with 73 occurrences, followed by admitting, saying, and speculating. These results suggest that the creator focuses on delivering factual, logical, and structured information to facilitate audience comprehension. Overall, this study emphasizes the crucial role of assertive speech acts in conveying educational and motivational messages while demonstrating YouTube’s potential as an effective medium for academic communication and contributing to the advancement of pragmatic studies.

Consumers are divided into three categories: initial consumers, middle consumers, and end consumers. These three types of consumers certainly have the right to protection, but end consumers as users need to receive more attention to protection, especially in the buying and selling process. This study uses a sociolegal approach with a purposive sampling method to examine the selling process. In addition, this study also examines how protection for end consumers is implemented in LPG buying and selling activities in Balikpapan Tengah District. Thus, this study aims to contribute to the understanding of protection efforts and the impact of not implementing protection properly in Balikpapan Tengah District, a densely populated area. This study is expected to be a reference for the development of consumer protection efforts in the buying and selling of subsidized LPG, as well as providing insight into the consequences that can be received by end consumers and their handling in the future.

The objective of this activity is to foster a spirit of entrepreneurship among students by utilizing productive land on the STT Sabda Agung campus as an educational vegetable garden. This activity is designed to engage students actively and collaboratively throughout the entire agricultural cycle, from the planning stage, land preparation, planting various types of vegetables such as water spinach, mustard greens, and spinach, maintenance, to the harvesting and marketing of the produce. The primary focus of this activity is not only on the technical aspects of farming but also on character development, fostering independence, and enhancing students’ managerial skills in managing small-scale business units. The outcomes of this initiative demonstrate a significant increase in students’ interest and understanding of agriculture-based entrepreneurship, particularly regarding the utilization of backyard spaces. In addition to providing educational value, this land optimization has successfully transformed the campus area into a productive and aesthetically pleasing green space. As a result, students now possess practical skills that can serve as a foundation for future economic independence, particularly in the service sector. Through this integration of theory and practice, it is hoped that an innovative learning ecosystem will be created to foster the emergence of competent young entrepreneurs who are environmentally conscious.

This study aims to describe representative speech acts in a video with the theme of in-depth learning design on the Diklat Online YouTube Channel. The background of this study is rooted in the important role of language in social interaction and the importance of speech acts as one aspect in pragmatic studies. In the realm of digital media, people see YouTube as the right platform to analyze speech acts because it is able to facilitate interactions between speakers and interlocutors through its videos. This study uses a qualitative descriptive method with the main data sources in the form of three podcast videos from the Diklat Online channel, August 2025 edition. Data were obtained through listening and note-taking techniques, then analyzed using the pragmatic equivalent method to classify the forms of representative speech acts. The results of the study found 33 representative speech act data divided into nine categories, namely stating (9), suggesting (3), demanding (3), showing (2), informing (8), mentioning (3), explaining (2), speculating (1), and giving examples (2). Of all, the speech act "stating" emerged as the most dominant type. The research conclusion confirms that representative speech acts have an important role in strengthening the validity of knowledge, supporting message clarity, and building a communicative, reflective, and meaningful learning atmosphere for the audience, thus making a real contribution to the effectiveness of educational communication in digital media.

This study aims to determine the effect of Leverage and Investment Decisions on Profitability at PT Aneka Tambang Tbk for the 2015-2024 period, both partially and simultaneously. This research method uses quantitative with a asosiatif research type. Secondary data obtained comes from the Indonesia Stock Exchange website (www.web.idx.com) and the PT Aneka Tambang Tbk website. The results of this study show that the Leverage variable has a t count of -3.166 > t table 2.365 with a significant value of 0.016 < 0.05, so it can be concluded that the Leverage variable (X1) has a significant effect on Profitability (Y). The Investment Decision variable has a t count of -0.673 < 2.365 and with a significance level of the Investment Decision variable of 0.522 > 0.05, it can be concluded that the Investment Decision variable (X2) does not have a significant effect on Profitability (Y). And the results of the F Test obtained an Fcount value of 6.726 > Ftable 4.737 and a significant value of 0.023 < 0.05, meaning that the Leverage and Investment Decision variables together have a significant effect on Profitability. Therefore, the Leverage (X1) and Investment Decision (X2) variables together have a significant effect on the stock price of PT Aneka Tambang Tbk.

The swift advancement of information technology has greatly influenced society, while also raising the threat of cybercrime. These offenses encompass the theft of social media accounts, unauthorized access to online information, and breaches of personal data security. This research intends to explore various types of cybercrime in Indonesia, the legal measures in place, and the obstacles law enforcement encounters when proving cybercrime incidents. The study adopts a qualitative method by reviewing literature, which includes laws, court rulings, academic articles, and reports from pertinent organizations. The findings reveal that even though laws like the Electronic Information and Transactions Law and the Personal Data Protection Law establish a legal framework, there are still issues related to digital evidence, coordination between agencies, and the public's understanding of data security. Consequently, there is a need for a more thorough law enforcement approach, enhanced digital education, and collaborative efforts among the government, law enforcement agencies, and the community to effectively combat and manage cybercrime.

The rise of reflective content on YouTube underscores the need for pragmatic research that investigates not only what is said but also the effects of speech on audiences (perlocution). This study aims to analyze the speech act forms associated with perlocutionary effects on Henny Kristianus’s YouTube channel, focusing on the theme of maturity of mind, and to map observable indicators in viewers’ responses. A qualitative descriptive approach with pragmatic content analysis was employed. Data were drawn from transcripts of two videos and corresponding audience comments. The analysis identified three dimensions: (1) types of illocutions (advice, invitation, warning, empathetic assertion), (2) rhetorical/multimodal devices (metaphor, personal narrative, reflective question, call to action), and (3) observable perlocution indicators (attitude change, behavioral intention, emotional support). The findings show that empathetic and reflective utterances most frequently produce perlocutionary effects such as cognitive clarification, behavioral intention, and social reinforcement among viewers. These results suggest that the perlocutionary strength in digital discourse is influenced by the harmony between linguistic strategy, message depth, and communicated maturity values. Theoretically, this research enriches Indonesian digital pragmatics studies. Practically, it provides educators and content creators with insights to design ethical, persuasive, and character-building educational discourse.

Language is the primary tool of communication, serving to convey human ideas, feelings, and thoughts in social interaction. One important study in pragmatics is speech acts, particularly expressive speech acts, which express the speaker's psychological state thru utterances. This research focuses on analyzing the expressive speech acts found in the YouTube channel Hujan Tanda Tanya, an educational channel managed by Rousyan Fikri, also known as Hutata. The objectives of this research are (1) to describe the types of expressive speech acts found on the Hujan Tanda Tanya YouTube channel and (2) to identify the forms of these expressive speech acts. This research uses a descriptive qualitative method with content analysis techniques applied to three videos uploaded on that channel. The research results show that there are five forms of expressive speech acts, namely complaining, expressing gratitude, praising, and supporting, with a total of 25 utterance data. The most dominant form of expressive speech act is praise, as the content in this channel provides a lot of positive encouragement to its viewers. This research is beneficial for enriching the study of pragmatics, particularly in understanding the application of expressive speech acts in digital media, and serves as a reference for discourse analysis on other educational platforms.

This study aims to redesign the raw material yarn warehouse layout at PT. XYZ using the Class Based Storage method to improve storage and retrieval efficiency. The main problem identified in the warehouse is random item placement, resulting in relatively long retrieval times of approximately 10–15 minutes per pallet. This research applies a descriptive quantitative approach using a case study method. The data used consists of inbound, outbound, and inventory records of yarn raw materials from November 2024 to April 2025. The analysis was conducted using the FSN (Fast Moving, Slow Moving, and Non-Moving) method through the calculation of consumption rate and average stay, combined with ABC classification to determine storage priority. The results show that 9 types of yarn are classified as Class A, 11 types as Class B, and 11 types as Class C. Based on this classification, a new warehouse layout was designed by placing Class A items near the input-output area, Class B items in the middle area, and Class C items in the back area of the warehouse, thereby improving storage efficiency and reducing retrieval time.

This study aims to redesign the raw material yarn warehouse layout at PT. XYZ using the Class Based Storage method to improve storage and retrieval efficiency. The main problem identified in the warehouse is random item placement, resulting in relatively long retrieval times of approximately 10–15 minutes per pallet. This research applies a descriptive quantitative approach using a case study method. The data used consists of inbound, outbound, and inventory records of yarn raw materials from November 2024 to April 2025. The analysis was conducted using the FSN (Fast Moving, Slow Moving, and Non-Moving) method through the calculation of consumption rate and average stay, combined with ABC classification to determine storage priority. The results show that 9 types of yarn are classified as Class A, 11 types as Class B, and 11 types as Class C. Based on this classification, a new warehouse layout was designed by placing Class A items near the input-output area, Class B items in the middle area, and Class C items in the back area of the warehouse, thereby improving storage efficiency and reducing retrieval time.

This study aims to determine: 1) The effect of the product on customer loyalty, 2) Price influence on customer loyalty, 3) The influence of place / location on customer loyalty, 4) The influence of promotion on customer loyalty, 5) The influence of people / employees on customer loyalty, 6) Effect of physical facilities on customer loyalty, 7) Effect of process on customer loyalty Bank BRI Unit Ampek Nagari Cabang Bukittinggi. Type of research conducted is Expost-Facto, the number of study population as much as 834 people, Proportional sampling technique Simple Random Sampling. The sample of this research is customer Bank BRI Unit Ampek Nagari Cabang Bukittinggi numbered 114 people. Data were collected through questionnaires using Likert scale models that have been tested for validity and reliability. Data analysis technique used is Path Analysis (Path Analysis). The research results are: 1) There is significant influence between product to customer loyalty, 2) There is a significant influence between price and customer loyalty, 3) There is a significant influence between place / location on customer loyalty, 4) There is significant influence between promotion to customer loyalty, 5) There is significant influence between person / employee to customer loyalty Training, 6) There is significant influence between physical facility to customer loyalty, 7) There is a significant influence between the process on customer loyalty Bank BRI Unit Ampek Nagari Cabang Bukittinggi. Viewed from direct or indirect influence of product, price, place / location, promotion, person / employee, physical facility and process to customer's loyalty Bank BRI Unit Ampek Nagari Cabang Bukittinggi is 84.54%, it is obtained that the promotion has the greatest influence of 21.01%. This shows that the understanding of promotion directly has a big role to the emergence of customer loyalty Bank BRI Unit Ampek Nagari Cabang Bukittinggi.

Drug abuse (NAPZA) has become a serious threat among students and poses significant risks to their physical health, psychological well-being, and future development. Therefore, preventive efforts through structured education and mentoring programs are essential. This community service activity aims to describe the process and outcomes of a drug abuse prevention mentoring program conducted at SMP Negeri 2 Bulu, Temanggung. The program applied a participatory approach consisting of four stages: coordination with the school, educational socialization on the dangers of drugs, follow-up activities through discussions and student reflections, and evaluation to measure students’ understanding. The educational sessions were delivered using interactive lectures, question-and-answer methods, and visual learning media to enhance students’ engagement and comprehension. The results indicate an increase in students’ knowledge and awareness regarding the types, impacts, and prevention strategies of drug abuse. Moreover, students demonstrated more positive attitudes and a stronger commitment to avoiding drugs as a form of self-protection for their health and future. This program is expected to serve as a school-based preventive education model to reduce drug abuse among students through collaboration between teachers, schools, and the wider community.

Starfruit (Averrhoa bilimbi L.), commonly known in Indonesia as belimbing wuluh, is widely used as a natural acid in traditional cuisine. It is often processed into dried sour starfruit (asam sunti), which can last 1–1.5 years. However, traditional sun-drying methods are inefficient due to weather dependency, long processing times, and inconsistent product quality and color. This study aims to design and develop a tunnel-type starfruit dryer equipped with a blower system and heat control based on the Arduino Mega 2560. The research employs a quantitative method to evaluate tool performance. The dryer is cylindrical and supported by key components, including LPG gas as a heat source, a blower for air circulation, and a drum holder. Drying is conducted in six stages, each lasting 120 minutes, totaling 12 hours to achieve optimal dryness. Temperature monitoring at three points (T1, T2, T3) uses a MAX6675 sensor with a thermocouple connected to the Arduino Mega 2560, while weight measurement is done manually. Results indicate the tool functions effectively. A denser drying chamber and proper blower installation are recommended to ensure even heat distribution and improved drying efficiency for community use.

The idea of functions in mathematics and how they are used to build different mathematical models are methodically examined in this publication. Functions are basic mathematical constructs that show relationships between two or more variables in explicit equations, tables, or graphs. The fundamental building blocks of mathematics are functions, which enable the representation of variable interdependencies in a variety of formats, including formal mathematical expressions, data tables, and graphs. The classification of function types, such as linear, quadratic, and exponential, and their corresponding uses in the domains of physics, economics, and epidemiology are the main topics of this study, which takes a descriptive and exploratory approach.This article illustrates how knowledge of functions greatly aids processes through a review of the literature and an examination of secondary sources from current textbooks and academic publications. of judgment, forecasting, and analysis. In both academic and professional contexts, mathematical modeling based on functions has demonstrated efficacy in accurately and efficiently representing real-world occurrences. Thus, the significance of incorporating functional thinking into STEM education and multidisciplinary practice is emphasized in this essay.

Starfruit (Averrhoa bilimbi L.), commonly known in Indonesia as belimbing wuluh, is widely used as a natural acid in traditional cuisine. It is often processed into dried sour starfruit (asam sunti), which can last 1–1.5 years. However, traditional sun-drying methods are inefficient due to weather dependency, long processing times, and inconsistent product quality and color. This study aims to design and develop a tunnel-type starfruit dryer equipped with a blower system and heat control based on the Arduino Mega 2560. The research employs a quantitative method to evaluate tool performance. The dryer is cylindrical and supported by key components, including LPG gas as a heat source, a blower for air circulation, and a drum holder. Drying is conducted in six stages, each lasting 120 minutes, totaling 12 hours to achieve optimal dryness. Temperature monitoring at three points (T1, T2, T3) uses a MAX6675 sensor with a thermocouple connected to the Arduino Mega 2560, while weight measurement is done manually. Results indicate the tool functions effectively. A denser drying chamber and proper blower installation are recommended to ensure even heat distribution and improved drying efficiency for community use.