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Fish farming using the biofloc system is a technological innovation capable of increasing efficiency, production results, and the sustainability of fisheries business at the village level. This study aims to determine the development of fish farming businesses using the biofloc system in increasing family income in Sembuluh village. Then, it aims to understand the impact of using the biofloc system in increasing family income and to understand the Islamic economic perspective on the utilization of the biofloc system in increasing family income. The method used is a qualitative or field research approach with purposive sampling techniques to collect data from 5 fish farmers who implement the biofloc system. Data were collected through in-depth interviews, observation, and documentation, then analyzed descriptively. The research results show that fish farming using a biofloc system is able to increase family income through increased production and feed cost efficiency. This system supports more controlled pond management, maintains water quality, and produces more stable harvests. In addition to increasing income, the implementation of the biofloc system also strengthens family economic resilience due to planned harvest cycles and group cooperation. From an Islamic economic perspective, this practice aligns with the principles of halal, honesty, justice, and social responsibility, as well as providing benefits for families and the community.

Fish farming using the biofloc system is a technological innovation capable of increasing efficiency, production results, and the sustainability of fisheries business at the village level. This study aims to determine the development of fish farming businesses using the biofloc system in increasing family income in Sembuluh village. Then, it aims to understand the impact of using the biofloc system in increasing family income and to understand the Islamic economic perspective on the utilization of the biofloc system in increasing family income. The method used is a qualitative or field research approach with purposive sampling techniques to collect data from 5 fish farmers who implement the biofloc system. Data were collected through in-depth interviews, observation, and documentation, then analyzed descriptively. The research results show that fish farming using a biofloc system is able to increase family income through increased production and feed cost efficiency. This system supports more controlled pond management, maintains water quality, and produces more stable harvests. In addition to increasing income, the implementation of the biofloc system also strengthens family economic resilience due to planned harvest cycles and group cooperation. From an Islamic economic perspective, this practice aligns with the principles of halal, honesty, justice, and social responsibility, as well as providing benefits for families and the community.

This study aims to develop an English learning module based on the role play approach to improve the speaking skills of Grade X students at SMA Negeri 21 Medan. The study is motivated by students’ low speaking ability due to limited communication practice and the use of conventional teaching methods. This research employs a qualitative approach focusing on needs analysis and initial product development. The research subjects include English teachers and Grade X students who participated in the needs analysis questionnaire. The findings indicate that students require interactive, communicative, and contextual learning and show strong interest in role play activities. Based on these findings, a role play-based module was designed to support speaking practice. However, this study is limited to the design and development stage and has not yet conducted expert validation or field testing. Therefore, further research is recommended to evaluate the feasibility, practicality, and effectiveness of the developed module.

The objectives of the study are: 1) To analyze the level of vulnerability of agricultural land to flash floods in Nagari Pauh Kamang Mudiak, 2) To analyze the condition of agricultural land in Nagari Pauh Kamang Mudiak before and after the flash flood. The results of this study: 1) Analysis of the level of vulnerability of agricultural land to flash floods in Nagari Pauh Kamang Mudiak, namely in the safe class covering an area of 8.34 hectares, the non-vulnerable class covering an area of 12.01 hectares, the vulnerable class covering an area of 51.91 hectares and the very vulnerable class covering an area of 18.13 hectares. This shows that most of the research areas have a high level of vulnerability to flash floods. Furthermore, the analysis of flash flood risks with 4 risk classifications is an area with a low risk of 16.94 hectares, a moderate area of 30.60 hectares, a high area of 37.78 hectares, and a very high area of 5.07 hectares. Based on the results of this analysis, the agricultural land most affected by the flash flood in Nagari Pauh Kamang Mudiak is rice fields covering an area of 72.2 hectares, 2) Analysis of the condition of agricultural land vegetation in Nagari Pauh Kamang Mudiak before and after the flash flood, namely with 5 classes, namely the very low greenness class covering an area of 12.69 hectares, low covering an area of 29.69 hectares, medium covering an area of 13.22 hectares, and high covering an area of 34.84 hectares. The results of the accuracy test using overall accuracy reached a suitability of 89.58% and the kappa coefficient reached a suitability of 84.32%, meaning good accuracysuitability between the classification results and actual conditions in the field.

This research aims to analyze the role and impact of PT Batujaya Bersama Sejahtera (PT BBS) on the socio-economic conditions of the community in Walandano Village, Balaesang Tanjung District. The background of this study is driven by the massive expansion of the mining industry in Central Sulawesi, which triggers a structural shift from traditional agriculture to an industrial economy. This study employs a qualitative method with data collection techniques including in-depth interviews, observation, and documentation. The findings indicate that PT BBS plays a significant role in local economic development by providing employment opportunities, increasing household income, and improving public infrastructure such as roads and jetties. However, the study also identifies social disruptions, including public protests regarding land issues and environmental concerns like dust and noise pollution. The implications of this research suggest that the company must strengthen its Corporate Social Responsibility (CSR) programs by focusing on sustainable community empowerment and more transparent communication to mitigate social risks. These findings contribute to the literature on regional economic development and social change in coastal mining areas.

This study aims to analyze the implementation of mudarabah and murabahah contracts at the Baitut Tamwil Muhammadiyah (BTM) Al-Kautsar Islamic Cooperative in Makassar and to assess their compliance with Islamic principles and the Islamic Financial Accounting Standards (PSAK Syariah). The research employed a qualitative descriptive approach using in-depth interviews, observation, and documentation. The findings reveal that BTM Al-Kautsar has implemented mudarabah and murabahah contracts in accordance with Islamic principles, as evidenced by valid contract agreements, agreed profit-sharing ratios, and manual transaction recording. The mudarabah contract is applied for profit-sharing financing, while murabahah is more dominant due to its lower risk and stable returns. However, the application of PSAK Syariah remains suboptimal due to limited human resources, the absence of a Sharia supervisory board, and minimal digital accounting systems. These findings suggest the need to enhance Sharia literacy, strengthen internal supervision, and modernize accounting systems to support accountable and sustainable Islamic cooperative governance

Administrative letter services at the village (nagari) level are still largely conducted using conventional methods, resulting in various issues such as limited service hours, slow processing times, and risks of document loss. This study aims to develop a web-based letter service system with the implementation of digital signatures in Nagari Bukit Bais to improve efficiency, security, and transparency of public services. The research adopts the Agile Development method with an iterative approach, including requirement analysis, system design, implementation, and testing. The developed system enables citizens to submit requests online and is equipped with features such as officer verification, digital signing by the village head, automatic notifications, digital archiving, and document verification using QR Codes. Security mechanisms are implemented using SHA-256 cryptographic hashing and RSA-2048 digital signature algorithms, supported by X.509 digital certificates. Functional testing using end-to-end methods shows that all system features operate successfully without failures, while non-functional testing confirms the reliability of document security and integrity. The resulting system is able to automate the entire service process, reduce processing time, and ensure document authenticity and security. Therefore, this system can serve as a solution to support the digital transformation of public services at the village level.

This study examines the importance of legal protection for healthcare workers in medical services, particularly in the Central Surgical Installation of the Regional General Hospital of Mataram City, which involves high medical risks. The background of this research is based on the increasing potential for medical disputes and the vulnerability of healthcare workers to legal claims due to discrepancies between medical outcomes and patient expectations. The objective of this study is to analyze the implementation of legal protection and identify the challenges faced in practice. The research employs a descriptive method with a qualitative approach, utilizing interviews, observations, and documentation studies. The findings indicate that legal protection has been implemented through standard operating procedures, informed consent, and internal hospital policies in accordance with applicable laws and regulations. However, its implementation remains suboptimal due to several constraints, including limited legal awareness among healthcare workers, inadequate legal assistance systems, and increasing public demands. The study implies the need to enhance legal education for healthcare workers and strengthen the role of hospitals in providing effective legal protection to support professional and safe healthcare services.

The development of the digital era has significantly transformed government administration, particularly in technology-based public services. This transformation requires strengthening the principles of good governance, which include transparency, accountability, public participation, effectiveness, efficiency, and legal certainty. State Administrative Law plays a strategic role in ensuring that bureaucratic digitalization remains within the correct legal framework and does not deviate from good governance principles. This study employs a normative juridical approach with a literature review method to analyze the role of State Administrative Law in strengthening good governance in the digital era. The findings show that State Administrative Law functions as an instrument of legality, discretionary control, data protection, improved accountability, and enhanced public service efficiency. Thus, State Administrative Law is not only regulatory but also adaptive to technological developments in achieving good governance in the digital era.

Introduction: Dengue fever is a viral infection transmitted through the bite of infected female Aedes aegypti mosquito, caused by four dengue virus serotypes (DEN-1 to DEN-4), with clinical manifestations ranging from asymptomatic to severe disease and may be accompanied by warning sign. Concurrent infections, such as acute diarrhea, may worsen outcomes, particularly in children. Case Report: A nine-month-old female presented with a five-day history of intermittent fever and watery diarrhea. Additional symptoms included vomiting, lethargy, and decreased appetite. Physical examination showed a moderately ill appearance and sunken eyes. Laboratory findings revealed positive dengue IgM, negative dengue IgG, thrombocytopenia (22,000/µL), and hematocrit of 37%. The patient was diagnosed with dengue fever with warning sign and acute diarrhea. Management included intravenous crystalloid fluids, antipyretics, antibiotics, H2 receptor antagonists, and zinc supplementation. Conclusion: Dengue with warning sign and concurrent acute diarrhea in children increases the risk of morbidity and mortality. Early and appropriate management is essential to prevent disease progression and improve clinical outcomes.

Global economic uncertainty and exchange rate fluctuations pose significant challenges to monetary stability in Indonesia, particularly in maintaining a controlled inflation rate. This study aims to analyze the transmission mechanism of the rupiah exchange rate to the inflation rate in Indonesia from 2015 to 2024. The method used in this study is library research by collecting, reviewing, and synthesizing data from various scientific literature, official central bank reports, and related journal articles published over the past decade. The research findings indicate that rupiah depreciation has a significant influence on rising inflation through the imported inflation channel, where currency depreciation increases the cost of raw materials for industries dependent on foreign markets. Furthermore, the findings reveal that the effectiveness of this transmission is influenced by public expectations and monetary policy taken by Bank Indonesia through adjustments to the benchmark interest rate. The implications of this study emphasize the importance of synergy between a stable exchange rate policy and controlling the supply of domestic goods to minimize the impact of external shocks on public purchasing power. The government and monetary authorities are advised to continue strengthening foreign exchange reserves and encouraging the use of local currencies in international transactions to reduce dependence on the United States dollar and maintain national price stability.

Digital technology has, in many ways, altered the manner in which businesses function. This transformation touches on aspects like how products are developed, delivered, and sold. It opens up a range of possibilities for business owners to broaden their markets, boost profits, and make better use of online tools. At the same time, however, the digital age introduces certain difficulties. These include increased competition as well as risks related to practices that may conflict with sharia law—for example, charging interest, engaging in transactions with unclear risks, or producing counterfeit goods. The focus of this study is to examine the opportunities and challenges that businesses encounter in today’s digital world, viewed through an Islamic lens. The approach taken involves a review of existing literature, drawing from various sources dealing with digital commerce and Islamic economic principles. The results suggest that digital business ventures hold considerable promise, provided they are conducted with honesty, fairness, and transparency, while avoiding activities disallowed by sharia. This way, entrepreneurs can not only generate income but also develop their enterprises in a way that aligns with ethical and religious values.

This study aims to analyze the dynamics of academic and social life of students at Universitas Nasional PASIM and identify the factors affecting the balance between these two aspects. Using a qualitative method with interviews as the data collection technique, this study reveals the role of the social environment, particularly peer interactions, in supporting motivation, academic achievement, and student well-being. The findings show that a conducive campus social environment, through interaction with peers, serves as a source of emotional support and information that can enhance motivation and academic performance. Conversely, a less supportive social environment can hinder focus and decrease students' enthusiasm for learning. Students also face challenges in balancing academic demands and social life due to the heavy schedule of classes, academic tasks, organizational activities, and social engagements. The research findings indicate that time management skills and prioritization are key factors in maintaining the balance between academics and social life. The inability to manage time effectively may lead to stress and academic burnout. Overall, the study emphasizes the importance of a supportive social environment and good self-management skills in fostering academic success and student well-being.

The rapid development of information technology has transformed social media into a digital space that plays a crucial role in shaping the mindset, behavior, and lifestyle of young generations. TikTok is one of the most dominant platforms used by Generation Z, particularly students, due to its ability to present algorithm-based content that aligns with user interests. This condition has the potential to cause psychological stress in the form of Fear of Missing Out (FOMO), which reflects social anxiety due to the perception of being late in keeping up with trends, information, or experiences that hold a dominant position in the social landscape. This research initiative aims to examine the influence of TikTok usage on the lifestyle configurations of Generation Z students, with FOMO serving as a determinant that strengthens this relationship. This study is designed within the quantitative tradition with a positivist epistemological orientation. The study population includes 250 students from the Faculty of Computer Science at the National Pasim University in Bandung, with a sample size of 72 respondents derived using Slovin's formula. The analysis results indicate that TikTok usage and the level of FOMO have a positive and significant impact on changes in students' lifestyles. The regression coefficient estimates are in the positive direction, with a significance value exceeding the critical threshold of 0.05, indicating a unidirectional relationship between the variables. The model determination estimate, at around 57.5%, confirms that TikTok and FOMO are able to explain a significant portion of the variation in students' lifestyles, while the remainder is influenced by factors outside the scope of this study. This finding confirms that TikTok functions not only as a medium of entertainment but also as an agent shaping lifestyles influenced by social and psychological pressures. Therefore, strengthening digital literacy is crucial so that students can use social media more rationally and responsibly.

The rapid growth of short-video-based social media platforms, particularly TikTok, has significantly influenced students learning behavior and productivity. This study aims to analyze the relationship between TikTok usage and students learning productivity. A qualitative literature review method was employed by examining relevant national and international scholarly articles published between 2021 and 2026. The data were analyzed using thematic synthesis to identify consistent patterns and key factors shaping learning productivity in the context of TikTok usage. The findings reveal a consistent pattern indicating that TikTok usage exerts an ambivalent impact on students learning productivity. Excessive and entertainment oriented use is associated with decreased concentration, increased academic procrastination, and poor time management. In contrast, purposeful use of TikTok through educational content and microlearning formats contributes to higher learning motivation, academic engagement, and creativity. These effects are strongly influenced by usage objectives, duration of consumption, and students self regulation abilities. This study concludes that TikTok is not a single determinant of learning productivity but functions as an amplifier of students learning behaviors. The findings contribute to the literature on social media and education by providing a conceptual foundation for developing digital literacy and time management strategies in higher education.

Mental health among university students has become a critical concern in higher education, particulary as students are required to cope with increasing academic demands, social pressures,and the growing complexity of campus life. At this stage, students are in an early transitional period that requires them to adapt to various changes, both academically and psychosocially. Under thes circumstances, psychological factor play a significant role in helping student maintain mental balance, one of which is emotional intelligence. This study aims to explore and understand the relationship between emotional intelligence and students’ mental health through a literature review approach. The method employed in this study is a qualitative descriptive literature review of 18 national and international scholarly articles published between 2021 and 2025, focusing on topics related to emotional intelligence, academic stress, emotion regulation, and student mental health. The findings indicate that emotional intelligence demonstrates a strong and consistent association with various aspects of students’ mental health, including levels of academic stress, anxiety, depression, academic, burnout, resilience, adjustment abilities, and psychological well being. Students with higher levels of emotional intelligence tend to be more capable of recognizing and understanding their emotions,as well as managing them adaptively when facing academic and social pressures. These abilities contribute to reducing the risk of excessive psychological distress. Furthermore, emotional intelligence functions as a protective factor that support the development of effective coping strategies and healty interpersonal relationship. Therefore, fostering emotional intelligence, through promotive and preventive programs within higher education instituions has the potential to become a strategic effort in enhacing and sustaining students’mental health over the long term.

The rapid development of artificial intelligence (AI) has brought significant changes to higher education, particularly in the way students think and learn. AI no longer functions merely as a learning support tool but also influences students’ cognitive processes, including critical thinking, problem-solving abilities, and creativity. This study aims to examine the impact of AI usage on the thinking patterns of university students. The research method employed is a literature review, analyzing various accredited national journals and relevant conference proceedings. The findings indicate that AI offers several positive impacts, such as improving learning efficiency, expanding access to information, and supporting the development of creative ideas. However, excessive reliance on AI may also lead to negative effects, including a decline in critical thinking skills and an increased tendency for students to depend on AI-generated outputs without in-depth analysis. Therefore, the role of educators is crucial in guiding students to use AI wisely and responsibly. AI should be utilized as a supportive tool in the learning process rather than a replacement for human thinking. This study is expected to contribute to the development of effective and ethical strategies for integrating AI in higher education.

This study aims to: (1) describe the quality of mathematical understanding of Grade IX students at MTs Negeri Karangasem on the topic of curved surface solids, (2) identify the level of mathematics anxiety, and (3) examine the relationship between mathematical understanding and mathematics anxiety. This research employed a quantitative approach involving 100 students selected from 130 Grade IX students. Mathematical understanding data were collected using a three-item test based on indicators of instrumental, relational, and logical understanding, while mathematics anxiety data were obtained through a 30-item questionnaire. All instruments were validated by experts and showed adequate reliability based on Cronbach’s Alpha. Data were analyzed using descriptive statistics, while the relationship between variables was tested using the Chi-Square test and the Fisher Freeman Halton Exact Test. The results show that most students (80%) have not yet achieved adequate mathematical understanding, while 20% demonstrate instrumental understanding. In terms of anxiety, 84% of students experience moderate anxiety, 11% high anxiety, and 5% low anxiety. Most students (67%) fall into the category of moderate anxiety with low understanding. Statistical results indicate that mathematical understanding and mathematics anxiety are significantly related.

This study examines the influence of Organizational Support and Work Engagement on Lecturer Performance in higher education institutions. Using a quantitative descriptive approach and Structural Equation Modeling (SEM), the research analyzes data from 190 respondents, comprising lecturers from various universities in Medan. The results show that Organizational Support has a significant positive effect on Lecturer Performance with a path coefficient of 0.265, a T statistic of 5.87, and a P value of 0.000, indicating a strong and highly significant impact. On the other hand, Work Engagement also positively affects Lecturer Performance, with a path coefficient of 0.107, a T statistic of 2.977, and a P value of 0.001, which is significant but with a smaller effect compared to Organizational Support. The R-squared value for Organizational Support is 0.656, indicating that 65.6% of the variance in Organizational Support is explained by the model. The findings highlight the importance of organizational support in fostering a productive academic environment, leading to improved lecturer performance. This research provides practical insights for higher education institutions aiming to enhance teaching quality and academic outcomes.

This study aims to determine the effect of the physical work environment and work motivation on the performance of employees of PT Pancaran Indonesia Kabupaten Tangerang, Depok City, both partially and simultaneously. The method used is a quantitative method with a causal associative approach and probability sampling technique with a sample of 82 and processed using SPSS 25. Data analysis using validity test, reliability test, classic assumption test, regression analysis, correlation coefficient analysis, coefficient of determination analysis, and hypothesis testing. The results of the study show that the physical work environment has a value of tcount > ttable or (3,714 > 1.994). Work motivation has a tcount > ttable or (11,852 > 1.994). The physical work environment and work motivation have Fcount > Ftable or (72, 865 > 2,737). This is also reinforced by the ρ value < Sig.0.05 or (0.000 <0.05). there is a significant effect simultaneously between the physical work environment (X1) and work motivation (X2) on employee performance (Y) with a contribution of 67,9% while the remaining 32,1% is influenced by other factors outside this study. The multiple linear regression equation Y = 5,949 + 0,067X1 + 0,985X2 + e.