Publication Search

The drainage channel located on Jalan Ketintang, Gayungan District, Surabaya, East Java, is influenced by geographical conditions, vulnerable to damage due to landslides and flooding. Along with the presence of quite high rainfall during the wet months (October - January), the problem of inundation in the form of flooding always arises in the area. To minimize flooding, it is necessary to repair the channel (capacity) periodically at certain periods. In the period of August - December 2022, channel repairs were carried out by installing a fabricated rectangular channel using U/DITCH 150/150. The purpose of this thesis is to determine the value of the design flood discharge (Q) and obtain the value of the channel dimensions that can accommodate the design flood discharge at a return period of 5 years and 10 years. The analysis in this thesis is in the form of obtaining rainfall data at 3 (three) rainfall stations, namely Perak 1, Perak 2 and Juanda rainfall stations, rainfall data using 2008 – 2022 (15 years) data, calculation of planned discharge using the Log Pearson Type III method, rainfall data testing using the Smirnov Kolmogorof, rainfall intensity using the Mononobe model, and calculation of designed flood discharge using the Nakayasu Synthetic Unit Hydrograph. The results of the analysis show that the design flood discharge obtained is 17.1 m3⁄s (10-year return period) and the dimensions of the planned channel are a square channel measuring 1,325 m x 1,325 m. This is in accordance with the capacity of the 150/150 U/Ditch channel installed along 945 meters which can minimize the occurrence of inundation/flooding/overflow of channels in the area because the channel has been repaired and the capacity is enlarged

This study examines plant water requirement management in urban farming using an automatic drip irrigation system. The system consists of 20 reused 1.5-liter bottles as water reservoirs and 20 emitters as drip control valves. The experiment was conducted on two planting beds, namely basil and mustard greens, with drip settings of 60, 125, and 180 drops. Before operation, calibration and correction factors were applied to ensure that the design discharge matched field conditions. The objective of this study was to determine the drip irrigation layout model and plant water requirements over 37 days. The layout used a parallel arrangement of three rows of plants with two rows of irrigation devices placed between them. Water demand was calculated using the radiation method based on daily evapotranspiration (ETo), considering latitude, altitude, temperature, wind speed, and relative humidity data. The results showed that ETo ranged from 8.51 to 8.84 mm/day, equivalent to 38.937 to 40.094 liters/day. After applying correction factors for each drip setting, the actual water requirement indicated surplus water stored in the soil and used for plant growth. The study concludes that drip irrigation management must account for residual soil water so that evapotranspiration demand during sunlight exposure is continuously met

This study aims to design and implement a simple solar panel-based battery charging system equipped with protection and voltage limiting circuits. The study was conducted to address the limitations of a direct solar panel-to-battery connection, which may cause short-circuit risk, reverse current, unstable charging voltage, and excessive battery charging. This research used a design-based experimental approach. The system was developed by preparing a block diagram, dividing it into several functional sub-blocks, and implementing the design into an electronic circuit. The main circuit sections consisted of solar panel protection, voltage limiter, interlocking circuit breaker, power regulator, and voltage divider. The assembled circuit was tested through real-time measurement by observing solar panel output voltage under different time and sky conditions and measuring battery charging time from different initial voltage levels. The results show that the solar panel output voltage varied according to time and weather condition. The lowest measured voltage was 15.0 V under cloudy conditions, while the highest measured voltage was 25.2 V under clear sky conditions around midday. The battery charging test showed that lower initial battery voltage required longer charging time, while voltage closer to the target level required shorter charging time. The evaluation was limited to voltage measurement and charging time; charging current, battery temperature, solar irradiance, and charging efficiency were not measured in detail. The proposed system can be applied for small-scale solar charging, educational practice, and basic renewable energy experiments. The study offers a practical circuit model that integrates protection, interlocking, voltage limiting, and regulation functions using simple and accessible electronic components.

This study contributes to the advancement of Islamic social finance discourse by developing a conceptual framework for a digitally integrated zakat governance model within the agricultural sector. The study addresses a critical gap between productive zakat practices and the emerging landscape of digital agricultural transformation. While previous research has largely focused on the redistributive function of zakat as a mechanism for poverty alleviation, limited scholarly attention has been directed toward its potential transformation into a technology-enabled and productivity-oriented instrument that supports sustainable development objectives. Employing a qualitative research approach through content analysis, this study synthesizes interdisciplinary perspectives from Islamic economics, zakat governance, agricultural technology innovation, and digital sustainability studies. The study proposes a Digital Farming Zakat Platform framework consisting of five interconnected dimensions: geospatial-based beneficiary identification, smart farming empowerment, sharia-compliant financial mechanisms, agricultural market integration, and data-driven monitoring systems.

Tuberkulosis (TB) merupakan penyakit menular yang masih menjadi masalah kesehatan global dan terus meningkat setiap tahunnya. Penyakit ini tersebar luas dan menjadi salah satu penyebab utama kematian akibat infeksi. Pemberian Terapi Pencegahan Tuberkulosis (TPT) merupakan salah satu strategi penting dalam upaya penanggulangan TB, khususnya pada kelompok berisiko seperti kontak serumah pasien TB, pelaksanaan program TPT di Kota Kendari masih belum optimal dan tergolong rendah dan Puskesmas Poasia merupakan puskesmas dengan jumlah kasus TB tertinggi dalam tiga tahun terakhir. Penelitian ini bertujuan untuk mengetahui gambaran penerimaan Terapi Pencegahan Tuberkulosis pada kontak serumah pasien TB dengan pendekatan teori Health Belief Model (HBM) di wilayah kerja Puskesmas Poasia Kota Kendari tahun 2025. Jenis penelitian adalah deskriptif kuantitatif yang dilaksanakan pada Maret 2026. Jumlah sampel sebanyak 80 responden yang dipilih menggunakan teknik simple random sampling. Analisis data yang digunakan adalah analisis univariat untuk menggambarkan distribusi frekuensi dan persentase setiap variabel. Hasil penelitian menunjukkan bahwa sebagian besar responden tidak menerima TPT yaitu sebanyak 71 responden (88,8%), sedangkan yang menerima hanya 9 responden (11,2%). Mayoritas responden memiliki persepsi kerentanan dan keseriusan yang rendah, persepsi hambatan yang tinggi, serta efikasi diri yang rendah, sedangkan persepsi manfaat menunjukkan hasil yang cukup berimbang. Hal ini menunjukkan bahwa faktor-faktor dalam Health Belief Model berperan dalam memengaruhi penerimaan TPT. Diperlukan peningkatan edukasi dan dukungan tenaga kesehatan untuk meningkatkan kesadaran serta penerimaan TPT.

Employee performance is essential to organizational success, particularly in the service industry, where service quality depends heavily on employees’ capabilities and workplace conditions. This study examines the effects of a learning organization culture and the work environment on employee performance, with job satisfaction as a mediating variable among service sector employees in West Jakarta. A quantitative causal approach was employed using an online questionnaire distributed through purposive sampling, resulting in 210 valid respondents. Data were analyzed using Partial Least Squares–Structural Equation Modeling (PLS-SEM) with SmartPLS. The findings reveal that both a learning organization culture and a positive work environment have significant positive effects on job satisfaction. In addition, learning organization culture, work environment, and job satisfaction each positively and significantly influence employee performance. Job satisfaction also mediates the relationships between learning organization culture, work environment, and employee performance. These results suggest that organizations can improve employee performance by strengthening continuous learning practices, creating supportive working conditions, and enhancing employee satisfaction. The study contributes to the human resource management literature and provides practical guidance for organizations seeking sustainable performance through employee-centered management strategies.

The optimization of road alignment has become increasingly important due to the continuous growth in traffic volume and the rising demand for efficient travel time. Road optimization considers several key factors, including traffic volume, population growth, and regional development, to ensure that transportation infrastructure remains functional and capable of meeting future mobility demands. The Malang–Batu corridor is characterized by mountainous terrain and hilly topography, requiring an appropriate geometric road design to determine the shortest feasible route while maintaining compliance with the Indonesian Bina Marga geometric design standards. This study developed a geometric road alignment model by applying Bina Marga specifications, in which the first horizontal curve was designed using the Spiral–Circle–Spiral (SCS) configuration, the second curve employed the Spiral–Spiral (SS) configuration, and the third curve utilized the Spiral–Circle–Spiral (SCS) configuration. The primary objective of this study was to determine the minimum achievable route length through variations in horizontal alignment parameters. The modeling results indicate that the shortest route length obtained was 1,101.17 m. The optimal horizontal alignment consisted of an SCS curve at Point A, an SS curve at Point B, and an SCS curve at Point C, whereas the vertical alignment followed the existing terrain conditions, incorporating both crest and sag vertical curves. These findings demonstrate that optimizing horizontal alignment parameters can effectively minimize route length while satisfying the geometric design requirements established by the Bina Marga standards.

As a maritime nation with vast sea territories, Indonesia faces significant challenges in safeguarding its waters, particularly in strategic regions such as the Natuna Sea. This area is vulnerable to various threats, including territorial violations, marine resource theft, and illegal underwater activities. This study aims to formulate a concept for the utilization of Autonomous Underwater Vehicles (AUVs) as an alternative solution to enhance underwater security systems in the region. The method employed is Research and Development (R&D), adopting model development steps and complemented by a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis to assess the feasibility and effectiveness of AUVs in the context of Indonesian maritime defense. The research findings indicate that the main strength of AUVs lies in their technological capability to effectively detect underwater threats. Although they have weaknesses, such as high operational costs, dependency on imported components, and limitations in battery endurance and sonar capabilities, these factors do not significantly hinder AUV effectiveness. Major opportunities arise from global technological advancements, yet challenges remain due to insufficient government policy support. The threats faced include the risk of sabotage and extreme weather conditions. Therefore, the recommended strategies are to maximize the use of technology, strengthen supporting regulations, and address logistical and financial barriers to realize effective and sustainable AUV operations in the Natuna Sea.

This study aims to describe the implementation of the group discussion model as a strategy to strengthen students' collaboration in Indonesian procedural text learning in Grade IV of SDN 8 Selat Penuguan. The study focuses on the implementation of group discussion, the forms of students' collaboration, the teacher's role in guiding collaboration, and the supporting and inhibiting factors in the learning process. This research employed a descriptive qualitative approach. The primary data were obtained from the teacher and Grade IV students, while supporting data were collected from learning documents. Data were gathered through observation, interviews, and documentation, and were analyzed through data reduction, data display, and conclusion drawing. Data validity was strengthened through source and technique triangulation. The findings indicate that group discussion was implemented through planning, small-group formation, procedural-text-based tasks, discussion, presentation, feedback, and reflection. The model strengthened students' collaboration through task sharing, mutual assistance, expressing opinions, listening to peers, and taking responsibility for group outcomes. The teacher acted as a learning designer, facilitator, guide, communication mediator, and evaluator of collaborative processes. Supporting factors included teacher readiness, the suitability of procedural text material, the use of worksheets, and a conducive classroom climate, while inhibiting factors included uneven student participation, limited time, differences in language competence, and the dominance of particular students in group work. The study concludes that the group discussion model is relevant for procedural text learning because it integrates material comprehension with the development of elementary students' social skills.

The rapid development of information and communication technology has encouraged military organizations to adopt modern systems capable of supporting operational effectiveness. One of the challenges faced by the Indonesian Marine Corps is the limitation of conventional monitoring methods that still rely on voice reports through tactical radios and manual communication systems. This condition often causes delays in information delivery, inaccuracies in troop positioning data, and difficulties in controlling personnel and logistics in dynamic operational environments. This study aims to formulate a conceptual model for the utilization of a GPS Tracking System integrated with Marine Corps communication equipment to improve troop and material movement monitoring. The study employed a Research and Development (R&D) method with a descriptive qualitative approach. Data were collected through literature review, observation, interviews, questionnaires, and documentation involving operational personnel and military communication experts. The results indicate that integrating GPS Tracking Systems with communication equipment can provide real-time location information, improve command and control effectiveness, accelerate reporting processes, enhance logistics supervision, and support operational evaluations through recorded movement data. The proposed concept is expected to strengthen situational awareness, increase operational efficiency, and support mission success in future Marine Corps operations.

Wilayah perbatasan Ambalat merupakan kawasan strategis NKRI yang rawan terhadap pelanggaran kedaulatan dan ancaman keamanan. Satuan Tugas (Satgas) Ambalat Korps Marinir menghadapi tantangan geografis dan keterbatasan teknologi pengawasan konvensional. Penelitian ini bertujuan menganalisis potensi pemanfaatan teknologi Unmanned Aerial Vehicle (UAV) untuk meningkatkan efektivitas pengamanan perbatasan oleh Satgas Ambalat. Penelitian menggunakan pendekatan deskriptif kualitatif. Teknik pengumpulan data meliputi observasi, wawancara mendalam dengan 4 narasumber (Komandan Skuadron Udara 700, pilot UAV, Dansatgas Ambalat, dan personel komunikasi Satgas Ambalat), serta dokumentasi. Analisis data menggunakan model Miles & Huberman. Penelitian menunjukkan bahwa (1) UAV belum dimanfaatkan secara langsung oleh Satgas Ambalat, pengamanan masih mengandalkan patroli konvensional dan drone non-militer; (2) tantangan utama meliputi keterbatasan personel terlatih, belum adanya program pelatihan formal, keterbatasan sarana prasarana (Ground Control Station, sistem komunikasi), serta kekosongan regulasi operasional; (3) UAV tipe ScanEagle dan Camcopter S-100 dinilai paling sesuai untuk kebutuhan Satgas Ambalat karena daya tahan terbang lama dan sensor canggih. Pemanfaatan UAV dapat memperluas jangkauan pengawasan, menyediakan data real-time, mengurangi risiko personel, serta meningkatkan efisiensi operasional. Diperlukan pendekatan terintegrasi berupa penyusunan regulasi, pengadaan sarana dan pelatihan personel bertingkat dan berlanjut. Teknologi UAV memiliki potensi strategis untuk memperkuat sistem pengamanan perbatasan Ambalat. Rekomendasi meliputi dukungan kebijakan pemerintah, pengembangan doktrin TNI AL, pembentukan unit UAV Korps Marinir, serta pelatihan personel secara berkelanjutan.

This study aims to analyze demand patterns and determine the most accurate forecasting method for the Kawachi KL 6167 A+ Emergency Lamp product to support inventory control decision-making. The data used in this study consist of product demand over 12 periods, showing an increasing trend with slight fluctuations in certain periods. The forecasting methods applied in this research include the Linear Trend Method, Quadratic Trend Method, and Moving Average (MA), while forecasting accuracy was evaluated using Mean Squared Error (MSE). The results indicate that the linear trend method provides a more suitable forecasting model compared to the quadratic trend method. The MSE value of the linear method is 69.31, whereas the quadratic method produces an MSE of 81.50, indicating that the linear method is more accurate due to its lower forecasting error. In addition, a 3-period Moving Average (MA) method was applied to forecast demand from period 13 to period 24. The forecasting results show that demand tends to stabilize within the range of 276–277 units, with the forecast for period 24 reaching 276.66 units, rounded to 277 units. Based on the findings, it can be concluded that the demand pattern for the Kawachi KL 6167 A+ Emergency Lamp demonstrates a relatively stable upward trend, making the linear trend method the most appropriate forecasting approach for predicting future demand. These forecasting results are expected to serve as a reference for companies in optimizing inventory planning to minimize the risks of stock shortages and overstocking.

Students of the Indonesian School of Jeddah (SIJ) are predominantly categorized as Third Culture Kids (TCK) who face sociocultural challenges and complex health determinants, including a high risk of dental caries and limited character monitoring outside the classroom. This transnational community service program aimed to evaluate the effectiveness of an integrated educational model using audio-visual media through the “Happy Teeth, Bright Smile” campaign and self-monitoring through the “My Adventure Journal” in improving oral health literacy and students’ character behavior. The study employed a Participatory Action Research (PAR) approach with mixed methods involving 155 elementary and junior high school students. Dental knowledge data were analyzed using the Wilcoxon Signed Ranks test, while journal compliance was calculated descriptively using the Grand Mean method and triangulated with content analysis of parental feedback. The results showed that elementary students’ compliance with daily character missions increased by 28.31%, particularly in the discipline dimension. Among junior high school students, multimedia intervention significantly improved clinical preventive knowledge (p < 0.001), with mean scores increasing from 77.00 to 90.20. Parental feedback indicated improvements in self-regulation, responsibility, and self-confidence. The study concludes that optimizing the Tripartite Partnership among university students, schools, and parents is effective in strengthening psychosocial resilience and students’ basic health independence in a transnational environment.

This study aims to provide the benefits of a psychological approach in education through a learning adjustment strategy based on the developmental stage and age limits of students. The study used a library method with a qualitative descriptive-analytical approach through a review of educational psychology literature, cognitive development theory, national education regulations, and various relevant scientific journals. The results of the study indicate that learning effectiveness is greatly influenced by the alignment between material, teaching methods, and students' psychological readiness. Piaget's cognitive development theory indicates that elementary school-aged children are at the concrete operational stage, thus requiring contextual learning, the use of real-life media, and active interaction in the learning process. This study also found that age limits in the education system have an important function as a means of synchronizing students' biological, emotional, social, and intellectual readiness with learning targets. Through the "Psychological Navigation" model, this study offers a strategic framework for educators to create adaptive, humanistic learning that is oriented towards optimal student development. The implications of this study emphasize that teachers need to understand the individual characteristics of students so that the educational process does not only focus on academic achievement, but also supports the psychological well-being and character formation of students as a whole.

This study aims to analyze the strategies applied by teachers in shaping students' green behavior in grade IV of SDN Sarakan III, Sepatan District, Tangerang Regency. The approach used is descriptive qualitative. The research subjects include grade IV teachers, students, and the school principal. Data collection was carried out through observation, interviews, and document studies. Data analysis used the Miles and Huberman model, which includes data reduction, data presentation, and drawing conclusions. The research results show that teachers implement five main strategies, namely: (1) designing learning according to the objectives and characteristics of students; (2) encouraging active student participation; (3) presenting material contextually; (4) using Project Based Learning (PjBL) methods and the Contextual Teaching and Learning (CTL) approach; and (5) habituating environmentally caring behavior in everyday school life. The implementation of students' green behavior has been observed in the aspects of knowledge, attitude, and action, although consistency still needs to be improved, especially due to limited school facilities and differences in students' levels of awareness.

This study aimed to analyze the influence of workload and burnout on nurses’ sleep quality while controlling for age, gender, and education as potential confounding variables. A quantitative analytic study with a cross-sectional design was conducted among 156 nurses working in a private hospital in Depok City. Data were collected using a workload questionnaire, the Maslach Burnout Inventory (MBI), and the Pittsburgh Sleep Quality Index (PSQI). The data were analyzed using Chi-Square tests and multiple logistic regression. The findings showed that both workload and burnout had significant effects on sleep quality (p < 0.05), with burnout identified as the most dominant factor. Age and gender were also significantly associated with sleep quality, whereas education did not show a statistically significant effect. The regression model demonstrated excellent fit, indicated by a McFadden pseudo R² value of 0.908. These results suggest that occupational factors, particularly burnout, play an important role in determining nurses’ sleep quality. Therefore, effective stress reduction and workload management strategies are needed to support nurses’ well-being and improve sleep quality.

This study investigates the role of Baitul Maal wa Tamwil (BMT) in empowering Micro, Small, and Medium Enterprises (MSMEs) through the integration of Maqashid Sharia principles and financial inclusion strategies. Despite the strategic importance of MSMEs in economic growth and poverty reduction, many face challenges in accessing formal financial services. BMT, with its dual function of social (maal) and commercial (tamwil) activities, offers a unique platform to bridge this gap. Using a qualitative systematic literature review guided by PRISMA, this study analyzes 30 relevant articles to examine BMT operational models, implementation of Maqashid Sharia objectives, financial inclusion practices, and their impact on MSME performance. Findings indicate that BMT effectively supports MSMEs in capital access, income generation, and business resilience, but inconsistencies in balancing social and commercial objectives limit. holistic empowerment. Integrating Maqashid Sharia principles enhances ethical and sustainable outcomes, while financial inclusion expands outreach to underserved entrepreneurs. Optimization strategies, including strengthening institutional capacity, combining financial and non-financial support, and context-specific interventions, are essential for maximizing BMT effectiveness. This study contributes a comprehensive framework linking ethical, financial, and empowerment dimensions, offering practical guidance for policymakers and BMT managers in promoting inclusive and sustainable MSME development.

This study aims to analyze the implementation of the MBG policy in fulfilling nutritional needs in North Barito Regency and to identify the obstacles encountered. A qualitative descriptive approach was employed, with MAN Barito Utara and SMAN 4 Muara Teweh as research sites. Data were collected through observation, in-depth interviews, and documentation, then analyzed using Edward III's policy implementation model encompassing four indicators: communication, resources, implementor disposition, and bureaucratic structure. The findings reveal that MBG implementation at both schools has generally been running well but not yet optimally. Communication was structured and food production quality was ensured through certified kitchens. All implementors demonstrated high commitment and enthusiasm, serving as the primary strength of the program. Key obstacles were identified in the resource dimension absence of dedicated nutrition personnel, inadequate distribution space, and minimal nutrition education for students and in the bureaucratic structure dimension, including SOPs not tailored to each school's specific characteristics, informal task divisions lacking official decrees, and the absence of systematic staff substitution mechanisms. The study recommends dedicated budget allocation for distribution facilities, issuance of official task division decrees, SOP refinement, and development of nutrition education modules integrated into teaching and learning activities.

The quality of life and well-being of women in Indonesia can be measured through the Female Life Expectancy indicator. Data on Female Life Expectancy from 2022 to 2024 shows a nationally positive trend; however, a significant disparity persists across provinces, particularly between the Western and Eastern regions of Indonesia. The nation still faces challenges in ensuring an equitable quality of life for women, as evidenced by the national Female Life Expectancy (FLE) in 2024 at 74.21 years, which remains lower than ASEAN counterparts such as Singapore at 83.86 years. Furthermore, regional imbalances are reflected in the performance gap between D.I. Yogyakarta (77.4 years) and West Sulawesi (68.28 years). This study aims to analyze the effects of Women's Income Contribution, Access to Clean Water, the Number of Families Receiving Social Assistance, and Women's Mean Years of Schooling on Female Life Expectancy in Indonesia during the 2022–2024 period. The estimation method applied in this research is the Fixed Effect Model (FEM) via a quantitative panel data regression approach, spanning an observation area of 33 provinces (n=99). Based on the analysis, Female Life Expectancy is proven to be positively and significantly influenced by Women's Mean Years of Schooling and Access to Clean Water. These findings indicate that human resource quality and environmental conditions serve as dominant factors in driving up Female Life Expectancy. Therefore, government policy interventions should ideally focus on expanding educational access for women and ensuring the equitable distribution of clean water infrastructure.

The coffee shop industry has experienced substantial growth in recent years, creating intense competition that compels businesses to continuously enhance service performance in order to maintain customer satisfaction and market competitiveness. PT Jokopi Indonesia Group has encountered several service-related issues reflected in declining sales performance and recurring customer complaints, indicating the need for a comprehensive evaluation of service quality. This study aims to identify service attributes that fail to meet customer expectations and determine improvement priorities through the integration of the SERVQUAL and Kano methods. A quantitative approach was employed using questionnaire data collected from 50 customers who had prior experience with the company’s services. SERVQUAL was utilized to assess discrepancies between customer expectations and perceived service performance, while the Kano model was applied to classify attributes according to their contribution to customer satisfaction. The findings reveal that all evaluated attributes generated negative gap values, indicating that existing service performance has not yet reached the level expected by customers. The most critical gaps were identified in menu availability, air-conditioning and fan comfort, payment convenience, and straw availability. Kano classification further demonstrates that menu availability and thermal comfort facilities belong to the Must-Be category, meaning that failure to provide these attributes may trigger significant customer dissatisfaction. The integration of SERVQUAL and Kano highlights these attributes as the most urgent areas for improvement. The results provide managerial guidance for developing targeted service enhancement initiatives aimed at strengthening customer satisfaction, retention, and competitive advantage.