Publication Search

Students who silmutaneously work and study often face dual responsibilities that require careful planning of their time between job duties and academic obligations. This scenario can influence academic perfomance, highlighting the importance of effective time management for optimal study outcomes. The present study investigates the influence of study time management on the academic perfomance of working student. A quantitative research method with a correlational design was employed, the study sampled 108 working the sample consisted of students selected via puposive sampling. Data were collected via an online questionnaire consisting of 12 items and acdemic achievment was measured using the responden semester grade point average (GPA). To ensure the instrument was reliable Cronbach’s alpha was calculated, resulting in a value of 0.607, indicating acceptable consistency. Analysis using sample linear regression in spss revealed that study time management significantly and positively affects academic perfomance (p=0.012<0.05). Study time management explains approximately 5.9% of the variance in academic achievement, as indicated by an (R²) of 0.059. whereas the remaining 94.1% is determined by other influences.

The search and booking of boarding houses (kost) remain a significant challenge for newcomers in campus areas, particularly in Kelurahan Samata, home to UIN Alauddin Makassar, which admits approximately 15,000 new students annually. Many of these students come from outside the region and require temporary accommodation near the campus. This issue is primarily caused by limited access to information and the lack of an optimal system to support the search and booking process. Therefore, it is necessary to evaluate the level of user acceptance of the developed system. This study aims to analyze user acceptance of a boarding house search and booking information system in the case of Kelurahan Samata using the User Acceptance Testing (UAT) method. UAT is a testing approach used to determine whether a system meets user requirements, is accepted according to expected standards, and to identify the need for further improvements to ensure its feasibility for use. The UAT was conducted by end users, namely boarding house seekers and property owners/managers, by responding to 10 evaluation indicators: (1) ease of search, (2) time efficiency, (3) booking process, (4) geospatial search features, (5) completeness of information, (6) availability of suitable boarding houses, (7) accuracy of information, (8) ease of payment process, (9) check-in scheduling, and (10) navigation features for directions. The results of the User Acceptance Testing (UAT) indicate that the system achieved an average score of 87.77, suggesting that the system is highly acceptable and significantly facilitates users. These findings demonstrate that the system is well received by users, confirming that it functions effectively and is capable of accommodating all required functionalities.

This study is motivated by the discrepancy between production targets and actual field performance caused by dynamic operational conditions, such as equipment productivity and effective working time. The objective of this research is to redesign the production target and develop a more realistic mine sequence using a rolling plan approach at Pit Hill16. The method includes analyzing the productivity of loading and hauling equipment based on cycle time data, calculating effective working time, and determining production targets using the rolling plan method. Furthermore, mine sequence design is developed based on the adjusted production targets. The results indicate that the productivity of loading equipment is 241.98 BCM/hour for the EC480DL excavator and 123.27 BCM/hour for the EC210DL excavator, while hauling equipment productivity is 40.24 BCM/hour. The April production target based on the rolling plan is 275,913 BCM, which can be achieved through mine sequence design with a volume of 277,839 BCM, resulting in a difference of +1,926 BCM, still within acceptable planning tolerance. Therefore, the rolling plan approach is proven to produce a more adaptive and realistic mining plan under actual field conditions.

This study analyzes the evolution of indigenous knowledge within the context of Islamic da'wah in South Sulawesi, focusing on social and cultural dimensions. This research is predicated on the premise that Islamic da'wah in South Sulawesi evolves within a social framework influenced by persistent local cultural values and traditions. In this context, local wisdom serves as both a cultural identity and a strategic vehicle for disseminating Islamic doctrines. This research seeks to examine the transformation of local wisdom within Islamic da'wah methods and to discern its social and cultural ramifications. The study utilized a qualitative methodology using a descriptive-analytical framework. Data were gathered by library research, observation, and comprehensive interviews with religious leaders, traditional leaders, and community people engaged in culturally oriented da'wah activities. The results indicate that the evolution of local wisdom transpires through the adaptation, accommodation, and reinterpretation of indigenous cultural values within the context of Islamic teachings. This method makes da'wah more acceptable to society, enhances social integration, protects local cultural identity, and encourages a moderate, inclusive, and contextual type of religiosity.

Indonesia is a country rich in cultural diversity, one of which is Javanese culture which is full of philosophical values ​​and symbolic meanings in every practice, including in the traditional wedding procession. One of the important rituals in Javanese traditional weddings is the Panggih Manten ritual, which represents the meeting between the bride and groom with various symbols of life, hope and blessings. Along with the development of the times and the flow of modernization, people's understanding of the philosophical meaning of the ritual has shifted. Some people still carry out this tradition as a hereditary custom without understanding the values ​​contained in it, even giving rise to debates regarding its suitability with Islamic teachings. This study aims to analyze the practice of the Panggih Manten ritual in Javanese traditional wedding traditions and review its suitability with the 'Urf argument in Islamic law. The research method used is qualitative with a juridical-normative approach, while the research location was carried out in Pengkol village, Mantingan District. The results of the study show that the Panggih Manten ritual is basically acceptable in Islamic law as long as it does not conflict with the principles of sharia. Based on analysis from the perspective of al-'urf, several aspects of the Panggih Manten ritual, such as muter asem (the act of making offerings), and the belief in disasters, contain elements that are inconsistent with Islamic law and could potentially lead to idolatry, thus being categorized as al-'urf al-fāsid. Therefore, the Panggih Manten tradition can be preserved through reinterpretation of its meaning and the elimination of elements that contradict Islamic teachings, thus aligning it with Islamic principles.

The use of moldboard plows in agricultural land preparation often faces wear problems on the share component, leading to increased maintenance time and reduced operational efficiency. This study aims to design and analyze a modular concept for the plow share to improve maintenance and repair efficiency without compromising structural performance. The research methods include field observation, component dimension measurement, design modeling using CAD software, and structural analysis using the Finite Element Analysis  (FEA) method. In addition, maintenance ease was evaluated through a questionnaire based on a rating scale. The results show that the modular design significantly improves maintenance and repair efficiency, with an average score of 4.59 categorized as very good. Structural analysis indicates that the modular design reduces maximum stress on the moldboard and slightly decreases deformation, reflecting improved structural stiffness compared to the conventional design. However, the Safety Factor on the share component remains below the acceptable limit, indicating the need for further development. Overall, the modular design provides an effective solution to enhance maintenance efficiency while maintaining the structural performance of the moldboard plow.

Ibuprofen is an antipyretic and anti-inflammatory drug classified as Biopharmaceutics Classification System (BCS) class II, characterized by low water solubility and high permeability. Its limited solubility may reduce the dissolution rate and influence therapeutic effectiveness. This study aimed to formulate ibuprofen suppositories using cocoa butter (oleum cacao) as the suppository base through the melting method. Each suppository was prepared with a total weight of 2500 mg containing 125 mg ibuprofen, oleum cacao as the base, tween 80 as an emulsifier, and liquid paraffin as a mold lubricant. Before formulation, a displacement value test was performed to determine the exact amount of base required. The prepared suppositories were evaluated through organoleptic examination, weight uniformity, melting time, and dissolution testing. The evaluation results demonstrated that the suppositories possessed acceptable physical characteristics, uniform weight distribution, appropriate melting properties, and satisfactory dissolution behavior. Based on these findings, ibuprofen suppositories formulated with oleum cacao fulfilled pharmaceutical quality requirements in accordance with the Indonesian Pharmacopoeia standards.

Sweet orange peel (Citrus x aurantium L.) is an agricultural by-product rich in bioactive compounds including flavonoids, phenolics, terpenoids, and vitamin C with antioxidant and moisturizing potential. This study aimed to formulate and evaluate a body lotion using 15% ethanol extract of sweet orange peel obtained by maceration with 96% ethanol. Evaluations included organoleptic, homogeneity, pH, adhesion, spreadability, viscosity, irritation, cycling test, cream type, and DPPH antioxidant activity assessments. The preparation was semisolid, yellow, with a characteristic herbal aroma, homogeneous, pH 8, adhesion time of 4.10 seconds, spreadability of 9.9–11.1 cm, and acceptable viscosity. The preparation caused no skin irritation, remained stable through six cycling test cycles, and formed an oil-in-water (O/W) emulsion. Antioxidant activity showed an IC₅₀ of 284.6 ppm (weak category) compared to vitamin C as positive control (IC₅₀ 4.2 ppm). It was concluded that ethanol extract of sweet orange peel can be formulated into a stable and safe body lotion, though further optimization is needed to enhance its antioxidant activity.

Abstract. Nutritional problems and low levels of healthy food literacy remain significant challenges in rural communities. The utilization of functional foods derived from locally available ingredients represents a strategic approach to improving community health quality. This community engagement program aimed to enhance the knowledge and skills of residents—particularly housewives and adolescents—through education and hands-on training in the production of banana–sappan wood yogurt as a nutrient-dense functional food alternative. The program was conducted on January 10, 2026, in Pabuaran Village, Serang Regency, using an educational and participatory approach. Activities included the delivery of educational materials on functional foods and the health benefits of probiotics, as well as a practical demonstration of yogurt preparation. Program evaluation was carried out through observation of participant engagement and interactive discussions. The results indicated that participants were able to successfully follow all stages of yogurt production and demonstrated high enthusiasm for the use of local ingredients as healthy food alternatives. The resulting product exhibited acceptable sensory characteristics and an appealing appearance. This activity contributed to improved nutritional literacy and food processing skills and demonstrated potential to support household-level food self-reliance.  

Vannamei shrimp (Litopenaeus vannamei) is one of the most important aquaculture commodities with high economic value and strong market demand. The transportation of broodstock shrimp is a critical stage that may affect survival due to decreased oxygen levels and water quality deterioration. High stocking density during transportation can accelerate oxygen depletion and increase metabolic waste, leading to higher mortality. This study aimed to determine the effect of different packing densities on the survival rate of broodstock shrimp during 12 hours of transportation. The experiment used four treatments with densities of 6, 8, 10, and 12 shrimp per bag, each with six replications. Observed parameters included temperature, dissolved oxygen (DO), and survival rate. The results showed that lower stocking density produced higher survival rates, with the best result obtained at 6 shrimp per bag. Water quality remained within acceptable limits, although oxygen levels decreased with increasing density. Therefore, proper stocking density is essential to maintain shrimp survival during transportation.  

This study aims to analyze the phytochemical profile of Sambung Nyawa (Gynura procumbens) leaves as a potential herbal candidate for mild hypertension therapy using in silico methods. Plant samples were examined to identify active compounds documented in the PubChem database. The identified compounds were further analyzed using PASS Online to predict their pharmacological activities, ProTox-II to evaluate toxicity levels, and pkCSM to assess ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) characteristics. The findings reveal that several bioactive compounds present in Sambung Nyawa leaves demonstrate strong predicted anti-hypertensive activity accompanied by minimal toxicological risk. PASS Online analysis indicates potential mechanisms of action, including vascular receptor modulation and mild diuretic properties that may support blood pressure regulation. ProTox-II classification places most compounds in the low-toxicity category, while pkCSM predictions confirm acceptable bioavailability and favorable pharmacokinetic properties. Overall, these results provide a preliminary scientific foundation for the development of Gynura procumbens as an alternative herbal therapy for mild hypertension and support the need for further validation through in vitro and in vivo experimental studies.

Dental caries is a health problem that can occur across all age groups, with children being particularly vulnerable. This study aimed to investigate the association between fluoride concentrations in dug well water and tooth-brushing practices with the incidence of dental caries among children aged 6–10 years in RT 5, Waplau Village. A quantitative approach with a cross-sectional design was applied. The study involved 64 respondents selected through purposive sampling. Data were analyzed using univariate and bivariate methods, supported by chi-square statistical testing. The results demonstrated a significant relationship between fluoride levels and dental caries (p = 0.013; p < 0.05). Additionally, tooth-brushing habits were significantly associated with the occurrence of dental caries in children (p = 0.001; p < 0.05). In summary, the fluoride content in the well water used by respondents was within acceptable limits, and tooth-brushing behavior contributed to the development of dental caries among children in RT 5, Waplau Village.

This Community Service Program (Kuliah Kerja Nyata/KKN) aimed to empower housewives through environmentally friendly dishwashing liquid production training in Kuta Parit Village, Selesai Subdistrict, Langkat Regency, responding to limited female participation in productive economic activities and increasing demand for safe household cleaning products. The program sought to enhance skills, knowledge, and economic independence among women while promoting health and environmental sustainability. A descriptive qualitative approach was applied, using observation, informal interviews, and documentation conducted during program implementation. Activity stages included education on eco-friendly soap concepts, introduction to materials and their functions, demonstrations of the production process, and hands-on practice sessions involving participants directly. KKN students served as facilitators and mentors, ensuring participants comprehended each step and were able to replicate the process independently. The results indicated that housewives successfully produced liquid dishwashing soap suitable for daily household use with acceptable quality. Beyond technical skill improvement, the program stimulated entrepreneurial motivation, strengthened confidence, and created opportunities for developing home-based microenterprises using eco-friendly products. Overall, this KKN activity contributed positively to women’s economic empowerment while supporting cleaner living practices within the community.

Acid mine drainage (AMD) is characterized by low pH and high concentrations of heavy metals such as iron (Fe) and manganese (Mn) that exceed environmental quality standards, thus requiring effective treatment to prevent environmental pollution. This study aims to evaluate the ability of a mixture of activated carbon derived from pineapple leaves mixed with coal to increase pH and reduce Fe, Mn, and Total Suspended Solids (TSS) levels in acid mine drainage at PT Alreksa Bara Mitra. The process to make activated carbon involved preparation, carbonization, and activation processes on the pineapple leaves and coal separately. The following step is to mix but pineapple leaves and coal the has been activated. The treatment was conducted using an adsorption method with variations in adsorbent mass of 4 g, 8 g, and 12 g and a contact time of 30 minutes. The parameters analyzed included pH, Fe, Mn, and TSS before and after treatment, and the results were compared with the quality standards stipulated in Minister of Environment and Forestry Regulation No. 05/2022. The results showed that the characteristics of the activated carbon mixture met the SNI 06-3730-1995 standard. Increasing the adsorbent mass contributed to the rise in pH from 5.5 to near the acceptable range of 6–9 and significantly reduced Fe, Mn, and TSS concentrations below the permitted limits.The findings indicate that the mixture of pineapple leaf- and coal-based activated carbon is an effective, economical, and environmentally friendly alternative adsorbent for acid mine drainage treatment.

Heart disease is the leading cause of death in Indonesia and globally, necessitating an early screening system that is both accurate and clinically trustworthy. Although XGBoost demonstrates high predictive performance, its black-box nature undermines clinical trust, while low recall risks missed diagnosis an unacceptable consequence in population screening, especially in middle-income countries with limited healthcare resources. This study aims to develop a sensitive, transparent, and implementation-ready heart disease screening framework through the integration of SHAP-based Explainable AI. The CDC's Indicators of Heart Disease dataset (319,795 samples) was processed according to WHO/CDC standards, followed by class imbalance handling, hyperparameter optimization using RandomizedSearchCV, evaluation based on metrics sensitive to minority classes (AUC, recall, F1-score, AUC-PR), and threshold tuning to maximize recall. The baseline model showed a very low recall of 12.18%. After optimization and threshold tuning at 0.10, the model achieved recall >96% (96.79%) with a G-mean of 0.7477, supported by SHAP interpretation stability and the ability to capture non-linear interactions between advanced age (AgeCategory_WHO) and poor general health (GenHealth). SHAP analysis confirmed the alignment of dominant features with medical evidence, and its visualizations provide transparent explanations for healthcare professionals indicating its potential implementation as an interpretable clinical decision support system.

The stability of disposal slopes is a critical aspect of open-pit mining operations because it directly affects operational safety and the continuity of overburden dumping activities. Disposal areas composed of overburden materials generally exhibit heterogeneous characteristics, particularly when soft materials such as mud are present, which can significantly reduce slope stability. Therefore, a comprehensive slope stability evaluation is required prior to further disposal development. This study aims to assess the stability condition of a disposal slope under initial conditions, evaluate the influence of material conditions, and analyze the effectiveness of counterweight application in improving both the safety factor and disposal capacity. The research methodology involved the collection of primary and secondary data, including slope geometry, lithological conditions, and the physical and mechanical properties of disposal materials obtained from laboratory testing and company technical data. Slope stability analysis was performed using the limit equilibrium method with the assistance of geotechnical software, taking into account groundwater conditions and operational loading. The analysis results indicate that the initial disposal condition yielded a safety factor of 0.718, indicating an unstable slope condition. After simulating the removal of mud material, the safety factor increased to 0.907 but remained below acceptable stability criteria. The application of a counterweight significantly improved slope stability, resulting in a safety factor of 1.498. Further optimization through slope geometry redesign produced a final safety factor of 1.101, which satisfies the requirements stipulated in KEPMEN ESDM No. 1827 K/30/MEM/2018. Additionally, the redesign increased the disposal capacity from 119,507,864.23 LCM to 119,682,378.22 LCM, representing an increase of 174,513.99 LCM. These results demonstrate that counterweight application combined with geometric optimization is effective in enhancing both slope stability and disposal capacity.

MMP is a metal manufacturing company engaged in casting, forging, and machining processes with a three-shift work system, including night shifts that may increase mental and physical workload due to disruptions in workers’ biological rhythms. This study aims to analyze the mental and physical workload of die casting machine operators during the night shift and to propose improvement measures using the Fault Tree Analysis (FTA) method. The study involved 23 operators, with mental workload assessed using NASA-TLX and physical workload measured using CVL. The results indicate that mental workload falls into high to very high categories, with WWL values ranging from 46.6 to 97.3, where 12 operators experienced very high mental workload. The dominant contributing dimensions were effort, physical demand, and temporal demand. Meanwhile, physical workload ranged from 19.48% to 36.36% CVL, with most operators not experiencing fatigue. Although physical workload remains within acceptable limits, the high mental workload indicates the need for improvements. FTA analysis identified key contributing factors, including work methods, work systems, ergonomics, machine conditions, and the work environment. Proposed improvements include job rotation, improvements in work methods and task distribution, adjustments to the work system, enhanced machine maintenance, and ergonomics-based workplace improvements.

The main problem in Longko Village is the low utilization of coconut husk waste due to limited community knowledge and processing skills, resulting in the waste being discarded or burned without economic value. This Community Service Program aimed to empower the community through innovative processing of coconut husk into environmentally friendly and marketable broom products. The program employed a participatory approach consisting of observation, socialization, technical training, mentoring, and evaluation, involving six participants from farming households and housewives. Evaluation was conducted by assessing participants’ skills and the quality of the products produced. The results showed a significant improvement in participants’ technical competencies, as indicated by an increase in knowledge from 30% to 90% and practical skills from 25% to 80%. Most participants were able to independently produce at least one coconut husk broom with acceptable functional quality. Furthermore, the program enhanced participants’ understanding of the economic potential of coconut husk and created opportunities for sustainable household-based enterprises utilizing local resources.

This study examines the seismic performance of slender Air Traffic Control (ATC) towers in high‑hazard regions (PGA > 0.4g), where vertical taper, torsional eccentricity, and top‑heavy cab mass can significantly increase drift, base shear, and collapse risk relative to conventional buildings. Existing studies often rely on linear procedures and outdated provisions, leading to underestimation of nonlinear behaviour and limited guidance for ATC towers designed to SNI 1726:2019. The research aims to quantify these irregularity effects and formulate design recommendations that satisfy Immediate Occupancy, Life Safety, and Collapse Prevention performance targets. The methodology couples response spectrum analysis, using a site‑specific Padang spectrum consistent with SNI 1726:2019 and ASCE 7‑16, with nonlinear pushover analysis interpreted through FEMA/ATC performance‑based criteria. A parametric study is performed on three cab configurations small, medium, and large modelled as 5%, 15%, and 25% mass ratios at the tower head, while keeping a 10 m × 10 m hybrid core–frame shaft constant. Results indicate that larger cab mass produces systematic but moderate increases in global displacement, story drift, and base shear, while plastic hinges localize primarily in the upper stories and cab‑support region, yielding performance levels from Immediate Occupancy to Collapse Prevention. Overall, the tower meets code drift limits and acceptable performance if local strengthening is provided around the shaft–cab interface, offering a calibrated reference for top‑heavy ATC tower design in Indonesian high‑seismic settings and identifying priorities for future time‑history and soil–structure interaction studies.

Quiet quitting refers to a phenomenon in which employees do not formally resign from their jobs but intentionally limit their work efforts to the minimum required. This study aims to adapt the Quiet Quitting Scale developed by Galanis et al. (2023) into the Indonesian context. A quantitative approach was employed involving 100 respondents drawn from both private and government sectors. The adaptation process included forward translation by three linguists, synthesis of the translated versions, and cultural adjustment to ensure contextual relevance. Data were analyzed using Confirmatory Factor Analysis (CFA) based on a three-factor model consisting of detachment, lack of initiative, and lack of motivation. The results indicate that the Indonesian version of the Quiet Quitting Scale demonstrates acceptable construct validity across the proposed factors. However, several items still require refinement, suggesting that further development and validation with larger and more diverse samples are necessary to strengthen the scale’s psychometric properties.