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Thaharah represents a core principle within Islamic teachings, encompasses both bodily cleanliness and spiritual sanctity, and functions as an essential requirement for the proper observance of acts of worship, including prayer, tawaf, and the recitation of the Qur’an. This concept extends beyond ritual practice, reflecting a manifestation of faith that encourages Muslims to maintain personal hygiene, environmental cleanliness, and spiritual closeness to Allah SWT. This study aims to explore and critically examine the concept of thaharah in a comprehensive manner, clarify its role within Islamic religious practices, and assess its relevance in fostering clean lifestyle behaviors and appropriate worship practices in accordance with Islamic legal principles in contemporary society. Conceptually, thaharah is divided into two main forms: purification from ritual impurity (hadas) through ablution (wudu), ritual bathing (ghusl), or dry purification (tayammum), and purification from physical impurities (najis) by cleansing the body, clothing, and surrounding environment. The normative foundation of thaharah is reinforced by textual evidence, including Surah Al-Ma’idah verse 6 and prophetic traditions that emphasize cleanliness as an integral part of faith. Thus, thaharah offers a holistic perspective on cleanliness that integrates both worldly and spiritual dimensions of Muslim life.  

Academic productivity is a vital indicator of student success in higher education, but it is often hampered by the complexity of tasks, transitions in the learning environment, and digital distractions that trigger procrastination. This phenomenon demands a high degree of adaptability so that students do not become trapped in physical and mental exhaustion due to unmanaged workloads. Therefore, this study aims to analyze in depth the causal relationship between time management skills and academic productivity, as well as investigate their role in mitigating academic stress levels in students. The research method applied is a literature review with a qualitative-descriptive approach. The research data was sourced from secondary data in the form of 21 reputable scientific articles (national and international journals) published between 2020 and 2025. The data analysis process was carried out through the stages of data reduction, synthesis of findings, and narrative conclusion drawing to systematically map the relationship between variables. The results and discussion of the study show that time management has a significant positive correlation with improved learning achievement. Specific indicators such as daily schedule planning, priority setting, and self-regulation have been empirically proven to increase task completion efficiency and Grade Point Average (GPA) achievement. Conversely, poor time management was identified as a major predictor of cognitive overload and exhaustion, especially among students with dense curricula such as engineering majors. This study concludes that mastery of time management is not merely a scheduling tool, but a fundamental cognitive strategy that functions as a coping mechanism to maintain mental health and achieve an optimal study-life balance.

The Ciliwung River Basin is a strategic watershed with significant ecological, social, and economic functions, yet it is increasingly threatened by land use change, rapid urbanization, and water pollution, particularly in the Jakarta metropolitan area. This study aims to assess the water quality condition of the Ciliwung River based on real time monitoring data from the ONLIMO system and to examine spatial and temporal variations in water quality status along the middle and downstream segments. A descriptive quantitative approach was applied using secondary data obtained from three ONLIMO monitoring stations, namely Masjid Istiqlal, Pintu Air Manggarai, and Kelapa Dua Srengseng Sawah, during the period of 6–12 May 2025. The analyzed parameters included temperature, dissolved oxygen, Biochemical Oxygen Demand, nitrate, ammonia, and other relevant physicochemical indicators. The results indicate that the water quality of the Ciliwung River generally falls within lightly to moderately polluted categories, with higher pollution levels observed in the middle segment of the river. Critical parameters influencing pollution status include Biochemical Oxygen Demand, nitrate, ammonia, and consistently low dissolved oxygen levels. These findings demonstrate that pollution in the Ciliwung River is persistent and cumulative, highlighting the urgency of integrated watershed management, strengthening real time water quality monitoring, and enhancing cross sector collaboration to support effective pollution control and sustainable river restoration.

This study aims to examine the activity of ginger (Zingiber officinale) on metabolism and digestion through a laboratory experimental approach. Metabolism and the digestive system play a crucial role in maintaining physiological balance, and disturbances in these systems can affect nutrient utilization and overall health. Ginger has long been used as a traditional herbal remedy and is known to contain bioactive compounds such as gingerol, shogaol, and zingerone, which are believed to support digestive and metabolic functions. The research was conducted using ginger extract prepared through an extraction process under controlled laboratory conditions. Observations focused on changes in metabolic responses and digestive activity following the administration of ginger extract. The study employed a descriptive experimental design to provide an objective overview of ginger’s biological activity. The results indicated a gradual improvement in digestive activity and metabolic responses after treatment with ginger extract. These changes suggest that ginger extract has the potential to enhance digestive efficiency and support metabolic processes. The findings provide scientific support for the traditional use of ginger as a natural ingredient in maintaining metabolic and digestive health and may serve as a preliminary reference for further research using quantitative and clinical approaches.

This study examines the economic dynamics experienced by migrant women through the perspective of abstract painting as a medium for personal and social reflection. The study uses a qualitative method with an artistic research approach, which departs from the researcher's personal experience as a migrant woman facing increasingly complex economic realities. The rising cost of living, financial constraints, and intertwined academic demands create pressure not only on material aspects, but also on psychological, emotional, and mental conditions. This situation demands adaptation strategies, resilience, and the ability to survive in the face of uncertainty in migrant areas. The dynamics of these experiences are then translated into visual language through an abstract expressionist approach utilizing mixed media techniques. Dynamic line elements, contrasting colors, bubble textures, and layers of material are used as symbols of the tension, struggle, and economic instability experienced by the subjects. The research findings show that abstract painting functions not only as a means of personal expression, but also as a medium for social reflection that records and articulates the experiences of migrant women who are often marginalized. This research contributes to the enrichment of contemporary art discourse, particularly in presenting visual narratives that voice economic issues and women's life experiences in a critical and reflective manner.    

Set theory is one of the fundamental concepts underlying the structure of discrete mathematics and computer science and plays a crucial role in understanding various advanced topics, such as relations, functions, mathematical logic, and other discrete structures. This concept serves as the foundation for developing a systematic and structured mathematical mindset. This paper aims to explain the fundamental concepts of set theory, review its significance in discrete mathematics, and outline how to present sets and basic operations on sets, such as union, intersection, complement, and difference. The method used in this paper is a literature study by reviewing, collecting, reading, and analyzing data from various relevant written sources, both textbooks and scientific articles. Through this study, students are expected to be able to understand set theory more comprehensively. Thus, it can be concluded that set theory is not merely an introductory topic, but rather a formal framework that defines the validity of logic and structure in modern discrete systems.  

The film Habibie & Ainun not only presents a love story of two important national figures but also represents Indonesia’s historical journey through an emotional and inspiring personal narrative. The film combines elements of romance with social, political, and national development contexts, giving it significant potential as a popular medium for historical learning. This study aims to analyze how the film can be utilized as a medium for historical education, particularly in instilling values of nationalism, exemplary leadership, and the spirit of innovation among the wider public, especially the younger generation. This research employs a qualitative approach using narrative analysis to explore visual representations, character dialogues, and storylines that portray B.J. Habibie’s struggle to develop the national technology industry amid political and social dynamics and limited resources. The results indicate that Habibie & Ainun functions as an effective historical learning medium because it successfully connects historical facts with emotional elements that are easily understood and accepted by the public. Through the depiction of the main character’s exemplary qualities, values of dedication, and love for the nation, the film makes a significant contribution to strengthening national identity and enhancing public appreciation of contemporary Indonesian history.

In this study, a device was designed and implemented to control the water pH and nutrient density (concentration) in a hydroponic system using the Mamdani method of fuzzy logic, thus maintaining nutrient solution parameters within an optimal range for plant growth. This system relies on three input values ​​obtained from a water pH sensor, a nutrient TDS sensor, and a flow meter. These three sensors are used to control four peristaltic motors, each of which functions to increase and decrease the pH and nutrient levels in the solution. The speed of the peristaltic pump motor, when the water pH is set at 6.5 and the nutrient concentration is set at 700 ppm, is influenced by the difference between the sensor reading and the set point. The greater the difference, the higher the peristaltic pump motor speed. Conversely, the smaller the difference between the sensor reading and the set point, the lower the peristaltic pump motor speed. Furthermore, the amount of water flowing through the pipe also influences the peristaltic pump motor speed.

This community service program is entitled Improving Microcontroller Competence of Students of SMK Negeri 3 Pematangsiantar through Arduino Training Based on Industrial Practice and is implemented as a follow-up to the school's official request to invite university practitioners as guest teachers in order to strengthen industry-based vocational learning. The activity was carried out on November 27, 2025 at the Computer Laboratory of SMK Negeri 3 Pematangsiantar involving 50 grade XI students, and guided by Andi Setiadi Manalu, S.Kom., M.Ti as the main instructor of Arduino material which focuses on the introduction of microcontrollers, basic programming, sensor integration, and simple automation project design. The purpose of this activity is to improve students' technical competence in the field of embedded systems while fostering work readiness through real-world practice-based learning experiences. The implementation method uses an experiential learning and project-based learning approach, which combines brief conceptual explanations with direct practice, technical discussions, and problem-based project assignment completion. The evaluation results show an increase in students' understanding of microcontroller functions, programming logic structures, and the ability to connect hardware and software in one work system. In addition, students demonstrated increased motivation, confidence, and interest in industrial technology, as reflected in their active participation during the practicum and their successful independent completion of functional prototypes. Overall, this activity proved effective in strengthening the technical competencies of vocational high school students and supporting the implementation of the link and match policy between vocational education and the needs of the industrial world, while also emphasizing the strategic role of higher education institutions in supporting the improvement of human resource quality at the vocational high school level.

Curriculum management is a strategic component of Islamic education because it plays an important role in achieving educational objectives and internalizing Islamic values within the learning process. Nevertheless, in practice, many schools continue to face managerial challenges in implementing the curriculum effectively. This study aims to evaluate curriculum management at MTs Persis 23 Cirengit based on the core functions of Islamic Educational Management, namely Planning, Organizing, Actuating, and Controlling (POAC). The research employed a qualitative approach using a case study design. Data were collected through in-depth interviews, direct observation, and document analysis, and were analyzed using an interactive analysis model. The findings reveal that the POAC functions have been formally applied but have not yet operated as an integrated managerial cycle oriented toward continuous quality improvement. Curriculum planning remains largely procedural, organizing is not sufficiently participatory, implementation depends heavily on individual teacher capacity, and supervision is mostly administrative with limited follow-up actions.

This study aims to design, implement, and test a prototype that automates three functions, namely watering, fertilizing, and pest control based on Arduino Uno with the ability to directly monitor soil moisture and pH. This system is equipped with four main types of sensors. Soil condition monitoring involves an FC-28 soil moisture sensor and a soil pH sensor, water level measurement involves an HC-SR04 ultrasonic sensor, and pest detection in the plant area involves a RIP sensor. All data obtained from these sensors is then processed by the Arduino Uno microcontroller to automatically activate actuators such as water pumps, liquid fertilizer pumps, buzzers, and DC motors according to soil conditions and plant needs. Prototype testing was conducted on simulated land with various scenarios of moisture, soil pH, and pest activity. The test results revealed that the system was proven to be able to significantly optimize water and fertilizer utilization, as well as reduce pest disturbances that could potentially damage plants.  In addition, this system also displays the operational status directly through an LCD screen, making it easy for users to monitor. The advantage of this system is its multi-function integration in a single device that is cost-effective and easy to operate. In the future, the functionality of this system can be improved through integration with Internet of Things (IoT) technology, enabling remote monitoring and control with greater efficiency. More broadly, this study is expected to support increased production and sustainable agricultural practices in Indonesia.

The relationship between religious doctrine and national identity remains a critical discourse in the Muslim world. The object of this research is Wasathiyatul Islam (Islamic Moderation) in Indonesia, which serves as a theological framework for balancing religious observance with social justice. However, the emergence of rigid transnational ideologies poses a significant challenge to this harmony, creating a potential disconnect between religious doctrine and local culture. To address this issue, this research aims to analyze how the values of Wasathiyatul Islam are transformed and harmonized within the dialectics of Indonesian society. The study employs a descriptive qualitative method with a phenomenological approach. Data were collected through literature reviews and social observations, then analyzed using an interactive model to interpret the "lived experience" of moderation. The results reveal that the harmonization process is manifested through four key indicators: national commitment, tolerance, anti-violence, and accommodation of local culture. A synthesis of these findings demonstrates that moderation in Indonesia is not merely a top-down state policy but an organic, bottom-up cultural practice where local wisdom serves as a vessel for religious values. In conclusion, Wasathiyatul Islam successfully functions as a unifying instrument, creating a "State of Consensus" where Indonesian Muslims practice their faith devoutly while maintaining unwavering loyalty to the nation.

This study aims to describe the lexical variations that emerge based on gender factor within the sociolinguistic context of SMP Bintang Persada Denpasar. This research employs a descriptive qualitative approach using the observational method and note-taking technique by presenting a list of glosses to 20 eight-grade students, consisting of 10 male and 10 female participants. The lexical data were analyzed using the intralingual and extralingual comparison methods. The findings reveal significant lexical differences between the two speaker groups. Female student tend to use more varied, complete, and expressive lexical forms, including full words and phrasal expressions. In contrast, male students show a tendency to use shorter, more efficient lexical forms dominated by abbreviations and rough expressions. These findings highlight that gender functions as a linguistic marker shaping distinct communicative patterns among adolescents, with female students prioritizing social expression and affection, while male students emphasize practicality and efficiency in language use.

Honesty (ṣidq) is a fundamental moral value in Islam that serves as the foundation for personal integrity and social ethics. In the current era of globalization and growing materialistic culture, this value faces serious challenges as societal orientation shifts from moral virtue to economic achievement and social image. This study employs a narrative review method, analyzing recent literature on moral education, Islamic ethics, and contemporary social dynamics. The findings reveal that honesty functions not only as a personal virtue but also as a social force that strengthens public trust and national stability. However, the global wave of materialism has weakened the internalization of ṣidq, especially among younger generations. Restoring honesty as the moral identity of the nation requires synergy among character-based education, spiritual reinforcement, and public policies that promote transparency and integrity. The recontextualization of honesty through Islamic spiritual principles and Rokeach’s value theory offers a path toward moral recovery for Indonesian society amid the global challenges of the 21st century.

This study investigates the role of Enterprise Information Systems (EIS) in driving innovation within organizations. The research employs a mixed-method approach, combining survey-based structural analysis and in-depth organizational case studies to explore how different EIS capabilities influence organizational innovation. The study focuses on four key EIS capabilities: functional capabilities such as workforce management and customer value creation; technological capabilities including ERP systems and real-time analytics; dynamic capabilities, especially organizational learning; and collaborative innovation through external partnerships. The survey results reveal that EIS capabilities, particularly data analytics and integration, significantly enhance organizational agility, decision-making, and innovation outcomes. In-depth case studies provide detailed insights into how these capabilities are applied in real-world organizational settings, illustrating their impact on process and service innovation. The findings indicate that the effective integration of EIS across organizational functions, along with improved access to data, contributes to operational efficiency and innovation success. However, challenges such as integration issues, resistance to change, and lack of skilled personnel were also identified as barriers to successful EIS adoption. The study contributes to the literature by offering a comprehensive understanding of how EIS capabilities drive innovation and highlighting the importance of organizational culture and leadership in the adoption process. The research provides practical recommendations for organizations to leverage EIS for fostering innovation, such as focusing on EIS integration, overcoming organizational barriers, and ensuring leadership engagement. Finally, the study suggests future research directions, including the refinement of multi-method approaches and the need for longitudinal studies to better understand the long-term impact of EIS on innovation outcomes.

This study investigates the role of Information Technology (IT) governance in enhancing risk management performance and ensuring regulatory compliance within multinational digital enterprises. As digital transformation continues to reshape the global business landscape, organizations face increasing challenges in managing technological risks and complying with complex regulatory requirements across various jurisdictions. The study adopts a quantitative approach, using a survey methodology to collect data from senior IT and compliance managers in multinational digital enterprises. The survey focuses on how IT governance frameworks, such as COBIT 2019 and ISO 27000, are utilized to align IT strategies with business objectives, mitigate risks, and maintain regulatory compliance. The findings indicate that organizations with well-established IT governance structures are better positioned to proactively identify and mitigate risks, ensuring greater consistency in meeting regulatory requirements. These organizations demonstrate improved risk management effectiveness, especially concerning cybersecurity, data privacy, and compliance with global regulations like GDPR. In contrast, organizations with ad hoc or decentralized governance structures struggle with fragmented risk management and compliance efforts. The study further highlights the importance of integrating IT governance frameworks with internal audit functions, specifically the Chief Audit Executive (CAE), to enhance cybersecurity resilience and ensure compliance with global standards. This research contributes to the literature by providing empirical evidence on the integration of IT governance, risk management, and regulatory compliance in multinational enterprises. It also highlights the need for a structured and systematic approach to IT governance to improve organizational performance in managing risks and ensuring consistent regulatory adherence. The study offers practical insights for organizations looking to optimize their IT governance structures in the face of rapid digital transformation.

The use of Information Systems and Information Technology (IS/IT) is a crucial factor in improving the efficiency and accuracy of retail sector operations. PT XYZ, a retail-level staple goods provider, has implemented IS/IT to support sales recording, inventory management, security, and operational reporting. This study aims to assess the effectiveness, efficiency, security, and compliance of the information system used. The audit was conducted through observation, interviews, document review, and system testing, referring to the COBIT framework and the ISO/IEC 27001 standard. The audit results indicated that the system supported core operational functions, but weaknesses remained, including insufficient system documentation, limited access controls, and suboptimal data security and backup mechanisms. Furthermore, reliance on manual procedures has the potential to lead to errors and slow down service delivery. Therefore, system improvements, strengthening security controls, developing standard operating procedures, and enhancing the competency of human resources and IT infrastructure are needed. This audit is expected to support improved service quality and secure, effective, and sustainable IT governance at PT XYZ.

The Financial Services Authority (OJK) is responsible for overseeing Indonesia's capital market, and this paper outlines its functions and powers. In order to promote financial system stability, safeguard the public interest, and boost the financial services industry's competitiveness, the OJK was founded to develop an integrated regulatory and supervisory structure. The OJK's responsibilities encompass policy formulation, business license issuance, oversight, inspection, law enforcement, and administrative penalties for infractions. Even though Indonesia's capital market has grown quickly, it still faces substantial obstacles like illicit investment and large losses from scandals and market manipulation, which emphasize the need for robust and independent oversight.

Student organizations in schools play an important role as social institutions that support character building and the development of students’ social and leadership skills. However, in practice, many students still perceive school organizations merely as formal or administrative activities, resulting in low participation and limited understanding of their educational value. This condition highlights the need for socialization activities that emphasize meaningful organizational learning. This community service activity aims to strengthen students’ understanding of the role of school organizations as social learning spaces. A descriptive qualitative approach was employed involving 30 eleventh-grade students at SMK Muhammadiyah 04 Boyolali. Data were collected through observation, discussion notes, and students’ responses during interactive sessions.The activity was conducted through teacher coordination, material preparation, material presentation, and discussion and question-and-answer sessions. The results indicate an improvement in students’ understanding of the functions and benefits of student organizations as social institutions. Students showed increased awareness of the importance of cooperation, discipline, responsibility, and communication, as well as greater motivation to actively participate in school organizations. These findings suggest that participatory and dialogical socialization is effective in promoting meaningful organizational learning and supporting students’ character development.

Banda Aceh City has high vulnerability to tsunamis due to its coastal location directly facing the sea and being situated in an active tectonic zone. This study evaluates the spatial distribution of tsunami risk and assesses coastal conditions as disaster mitigation efforts using a mixed-method approach that combines quantitative analysis based on Geographic Information Systems (GIS) and qualitative analysis through field surveys and expert assessments. Three beaches were selected as study locations: Ulee Lheue Beach, Syiah Kuala Beach, and Alue Naga Beach, with risk assessment calculated using the formula Risk = (H × V) / C according to the BNPB framework and overlay techniques in GIS to create risk distribution maps. Coastal condition evaluation focused on coastal vegetation and protective coastal structures assessed using an ordinal scale of 1–5. Results show that Ulee Lheue Beach has the highest mitigation capacity with a score of 64.5% (good category), Syiah Kuala Beach reaches 57.5% (fairly good), while Alue Naga Beach has the lowest score of 28.3% (poor). Correlation analysis yielded a coefficient of r = 0.97, indicating a very strong positive relationship between coastal vegetation and protective coastal structures. Therefore, the study recommends strengthening mitigation strategies through improved protective infrastructure and optimization of coastal vegetation functions, particularly in high-risk areas, to reduce tsunami impacts in the future.