This corpus-based study explores the acquisition patterns of English modal verbs by Indonesian EFL (English as a Foreign Language) learners through a comprehensive analysis of learner language data. The study utilizes a specialized learner corpus consisting of 2.5 million words drawn from both written and spoken productions of 450 Indonesian learners, covering various proficiency levels. The research focuses on examining the frequency patterns, semantic distributions, and error types associated with modal verb usage across the learner corpus. The study employs a combination of quantitative corpus linguistic methods and qualitative error analysis to uncover developmental trends and persistent difficulties in acquiring English modals. The findings highlight a significant underuse of epistemic modality, which expresses degrees of certainty, and an overreliance on core modals like "can," "will," and "must." Additionally, learners systematically avoid more complex modal constructions that are semantically nuanced and less frequent in their linguistic output. The analysis also reveals notable cross-linguistic influences from Indonesian, particularly in the areas of politeness marking and the expression of certainty. These interference patterns suggest that Indonesian learners may transfer modal expressions from their native language, leading to specific errors in the usage of English modals. Based on the findings, the study proposes a usage-based pedagogical framework that integrates corpus-informed instruction with explicit semantic mapping of modal meanings. This framework encourages teachers to address modal verb acquisition by emphasizing frequency-based approaches, contrastive semantic analysis, and corpus-driven awareness-raising activities. The research suggests that by focusing on the form-meaning-function relationships of modals in authentic contexts, learners can better understand and produce English modals accurately and appropriately. The findings have significant implications for enhancing modal verb instruction in EFL classrooms, especially for Indonesian learners.

The application of proper cough etiquette is an essential part of Clean and Healthy Living Behavior (PHBS) and serves as a preventive measure in reducing the transmission of respiratory infectious diseases from an early age. Health education for young children is crucial, as this stage represents the formative period where foundational habits are developed, potentially influencing long-term individual and environmental health. This community service activity was conducted on May 9, 2025, at Stella Maris Kindergarten in Tangerang City, involving 29 Nursery group children. The main objective of the program was to enhance the knowledge and skills of early childhood students in practicing correct cough etiquette and to instill healthy behaviors that they can apply in their daily lives at home and school. The implementation of the activity followed the POAC approach (Planning, Organizing, Actuating, Controlling) in a structured manner. Activities included storytelling (using engaging illustrations), screening of age-appropriate educational videos, practical simulations of cough etiquette, and fun, interactive games. These methods were designed to encourage active participation and ensure that children could understand and retain the health messages through enjoyable learning experiences. The results showed a notable improvement in the children's understanding and active involvement in practicing healthy coughing techniques, such as covering their mouths with a tissue or the inside of their elbows when coughing. Visual education combined with hands-on practice proved to be highly effective in conveying health messages to young children. The teachers responded positively to the program, emphasizing that the approach used was appropriate and should be widely implemented in other early childhood education institutions. They recognized it as a valuable promotive effort and a long-term health investment for children, laying the groundwork for healthier habits and environments in the future.

This research focuses on analyzing the impact of fundamental financial ratios on stock prices in the banking sector, specifically examining PT. Bank Mandiri Tbk. The key financial ratios investigated include Return On Assets (ROA), Loan to Deposit Ratio (LDR), Non-Performing Loans (NPL), and the ratio of Operating Expenses to Operating Income (BOPO). The study employs a quantitative descriptive research method, utilizing secondary data sourced from annual reports spanning the period from 2014 to 2023. Multiple linear regression analysis is utilized as the primary analytical tool to address the research questions and hypotheses. The findings of the study reveal that the independent variables—ROA, LDR, NPL, and BOPO—significantly influence stock prices, both in isolation and collectively. This indicates that these financial ratios are critical indicators for investors and stakeholders when evaluating the performance and market value of banking institutions. The research highlights the importance of these financial metrics in shaping market perceptions and stock valuations, providing valuable insights for investors, financial analysts, and decision-makers in the banking industry. Furthermore, the study contributes to the existing body of knowledge regarding the relationship between financial performance indicators and stock market behavior. By emphasizing the correlation between these ratios and stock prices, the research underscores the necessity for stakeholders to monitor and analyze these key financial metrics to make informed investment decisions. Overall, the results affirm the relevance of fundamental financial ratios in assessing the financial health and competitive positioning of banks, particularly in the context of PT. Bank Mandiri Tbk. This analysis not only enriches the literature on banking finance but also serves as a practical guide for stakeholders aiming to optimize their investment strategies based on financial performance indicators.

Education is a conscious and structured effort aimed at creating an environment and process that actively facilitates learners in developing their full potential. This includes nurturing their spiritual and moral values, self-control, intelligence, strong character, and essential life skills required for personal development and meaningful contributions to society, the nation, and the global community. At its core, education serves to empower students to realize and utilize their capabilities for future life challenges. It acts as a foundational medium through which younger generations acquire essential life skills, enabling them to integrate effectively into society. Moreover, education plays a pivotal role not only in the personal growth of individuals but also in the advancement of a nation. High-quality education is defined by its capacity to equip students with the competence to confront and resolve real-world problems. This notion becomes increasingly critical as learners transition from academic settings to the workforce and community life, where they are expected to apply their knowledge and skills practically. However, the success or failure of educational outcomes is largely determined by the curriculum. A well-designed curriculum should cultivate critical awareness and empower students to navigate complex social and professional environments. It should also promote creativity, critical thinking, and collaboration, which are essential skills in today’s rapidly changing world. Furthermore, education should not be viewed merely as a means to acquire knowledge but as a holistic process that fosters emotional intelligence and social responsibility. By integrating various disciplines and encouraging interdisciplinary learning, education can help students develop a broader perspective on global issues, such as climate change, social justice, and economic inequality. In addition, the role of educators is crucial in this process.
 

Rapid technological developments have penetrated various aspects of human life, including data and information security. Amidst the threat of data leaks and misuse, information protection has become crucial. One solution to maintain data confidentiality is to implement cryptography technology. Cryptography is the study of techniques to secure messages so they cannot be read by unauthorized parties. This process is carried out by encoding the original message (plain text) into an unreadable form (cipher text), which can only be understood by those who possess the key to decrypt it. This study used the Caesar Cipher algorithm, a form of classical cryptography. This algorithm uses a substitution method, where each letter in the message is shifted by a certain amount based on a predetermined key. Caesar Cipher is a symmetric algorithm, meaning the key used for encryption is also used for decryption. The security of this algorithm lies in the secrecy of the key, which is known only to the sender and recipient of the message. This method is relatively simple, but still relevant for securing data with low to medium sensitivity levels. This study used WhatsApp messages as the object to be encrypted using the Caesar Cipher algorithm. The results show that encrypted messages become unintelligible without prior decryption. This demonstrates that the Caesar Cipher can protect messages from unauthorized parties. Therefore, implementing this algorithm can be an initial solution for maintaining data confidentiality in digital communications, especially on platforms vulnerable to eavesdropping or unauthorized access. Its primary benefit is maintaining message integrity and confidentiality to prevent misuse.
 

This community service activity aims to strengthen the character development of elementary school students through training in creating digital applications using the Thunkable platform. In the midst of the digital era and the challenges of the Industrial Revolution 4.0, character education is an essential aspect that must be instilled from an early age, alongside cognitive competence. Elementary schools, as the foundation of education, play a strategic role in shaping children’s personalities, including embedding positive character values.
This activity was conducted at SD Moria in Sorong City and involved 24 students from grades 5 and 6, selected based on their interest and readiness. The training used a Project-Based Learning approach, where students were actively engaged in creating simple application projects. Throughout the process, students not only learned basic programming skills using Thunkable but also developed key values such as teamwork, responsibility, independence, creativity, and curiosity. Despite facing challenges such as limited devices and internet access, the students demonstrated remarkable enthusiasm. Thunkable proved to be an effective tool for interactive and enjoyable learning. Students were able to directly develop their creative ideas through designing user interfaces and application functions. This provided a meaningful learning experience that motivated students to continue exploring and trying new things. The activity showed that technology-based learning can serve as a strategic means to holistically shape students' character. Overall, this initiative demonstrated that digital application development training can serve as a character education model based on technology that is highly relevant for elementary education. This program is expected to serve as an educational innovation example that encourages the integration of digital literacy and character education in Indonesian elementary schools.

The scientific journal writing training held at the Imam Syafi'i Islamic Boarding School in Brebes is part of a strategic effort to improve academic literacy and scientific writing skills among students and teaching staff. The background to this activity is the low ability and confidence in scientific writing, which has resulted in minimal involvement of students in academic publications, both at the local and national levels. This training activity involved 30 participants, consisting of final-year students and teachers, using an approach that integrates theory and practice in a balanced manner. The material presented included understanding the structure of scientific journal writing, citation techniques using reference applications, publication ethics, and direct practice in drafting scientific articles. The training was conducted in several intensive sessions, followed by evaluations through pre- and post-tests. The evaluation results showed a significant increase in participants' understanding, where the average score increased from 55 to 80. Not only from a cognitive perspective, participants also showed increased confidence in expressing ideas and systematically compiling scientific writing. Some participants were even able to produce article manuscripts worthy of submission to scientific journals. Although this activity faced several challenges, such as limited training time and access to the latest scientific literature, overall, the training was deemed successful in fostering a stronger academic culture within the Islamic boarding school environment. It is hoped that this training program can be continued and developed sustainably as part of a strategy to strengthen academic capacity and scientific literacy within Islamic boarding schools.

This study explores the influence of information system quality, information technology sophistication, and personal technical capability on the effectiveness of Accounting Information Systems (AIS) in Village Credit Institutions (LPDs) in Jembrana Regency. The research adopts a quantitative approach, utilizing a survey method. Questionnaires were distributed to 63 employees from 21 LPDs that have already implemented computerized AIS. The study focuses on assessing how these three independent variables contribute to the effectiveness of AIS in the LPDs. Multiple linear regression was employed for data analysis, allowing the researcher to determine the relationship between the independent variables and the effectiveness of AIS. The respondents were selected from LPDs that had successfully integrated technology into their accounting systems. The primary objective was to understand whether system quality, IT sophistication, and personal technical capability played a significant role in improving AIS performance in these institutions. The findings of the study indicate that all three independent variables—system quality, IT sophistication, and personal technical capability—positively influence the effectiveness of AIS. Specifically, high-quality systems, advanced IT infrastructure, and employees with strong technical skills were found to enhance the operational effectiveness of AIS. This underscores the importance of these factors in ensuring the smooth functioning of AIS in LPDs. As such, LPDs are encouraged to invest in improving system quality, upgrading IT systems, and enhancing the technical skills of their staff to optimize AIS performance. Overall, the study contributes to the understanding of how technological factors can be leveraged to improve accounting processes in financial institutions, particularly in rural settings like LPDs in Jembrana Regency.

The phenomenon of bullying that occurs in the pesantren environment is not only a social problem, but also reflects a crisis in the internalization of Islamic educational values. This study aims to examine the dynamics of bullying in Islamic boarding schools from a psychosocial perspective and Islamic educational values. With a literature study approach and qualitative content analysis, this study explores various theories, empirical findings, and expert views obtained from relevant journals, books, and scientific works. The results of the study show that the practice of bullying in pesantren often stems from power relations that are institutionalized through the hierarchy structure of seniority, as well as weak supervision of the process of internalizing Islamic values among students. The values of Islamic ukhuwah, justice, and compassion that should be the spirit of Islamic education are often eroded by a culture of silence, neglect, or even the wrong perception that bullying is part of discipline. In fact, the concept of Islamic education not only emphasizes the mastery of the knowledge of tools (tsaqafah), but also the formation of intellect ('aqliyah), soul (nafsiyah), and Islamic personality (syakhsiyah Islamiyah) based on a strong aqidah. Bullying prevention requires deeper Islamic character education, strengthening social control, and psychosocial approaches to maintain mental and spiritual balance of students. The implications of this study emphasize the importance of a holistic and civilized pesantren management strategy, by fostering an anti-bullying culture, creating a safe, harmonious, and harmonious learning environment that is in line with the main goals of Islamic education. Thus, pesantren are expected to be able to form students who are not only intellectually intelligent, but also have noble morals, high social spirit, empathy, and have a strong Islamic personality and full of integrity.

The Mesak SME is a micro-enterprise in the food sector that still relies on conventional marketing strategies. This reliance on traditional promotional methods has prevented it from optimally reaching the digital market. However, utilizing digital technology is currently a crucial aspect of business development, particularly for increasing competitiveness and expanding market reach. Therefore, this community service activity was carried out with the primary goal of improving the Mesak SME's capacity to adopt digital marketing strategies. The community service program was designed in a structured and sustainable manner through several stages: an initial survey to determine the SME's existing condition, observation of existing marketing activities, and socialization of the benefits of digital technology in business development. Next, intensive training was conducted, covering the use of social media as a promotional tool, creating engaging digital content that aligns with the product's characteristics, and introducing e-commerce platforms to expand market access. The training focused on a practical approach that is easy for SMEs to understand. Furthermore, mentoring and evaluation were provided to ensure the sustainability of the digital strategy implementation after the program was completed. Through this series of activities, it is hoped that the Mesak SME will be able to actively utilize social media, produce engaging content, and market its products through various digital channels. The results of this activity are not only aimed at increasing sales volume but also at building a more professional and competitive business image, both in local and digital markets. With improved digital marketing capabilities, Mesak SMEs are expected to develop independently and sustainably in the era of digital transformation.