Publication Search

SR12 Herbal Cosmetics is a company engaged in the field of herbal and skin care. Founded in 2015 byToni Firmansyah, S. Farm., Apt. and Asrianty Salam, Farm. This company has a vision to provide benefits to many people through the herbal and skin care products they produce. SR12 Herbal Cosmetics products are formulated based on research from certified scientists, and have been tested at the Sucofindo Laboratory, are free of mercury and hydroquinone, and have been registered with the Indonesian Food and Drug Supervisory Agency (BPOM RI). SR12 Herbal Cosmetics has several factories in West Java Province and has an extensive distribution network with hundreds of distributors and tens of thousands of partners throughout Indonesia. The goal to be achieved is to produce a management information system model including a management information system for PT SR12 Herbal Cosmetics. The research object chosen is a company in the field of cosmetics and skin care which has its head office in Gunung Sindur, West Java. This selection aims to form a management information system design model that is able to produce relevant and timely information for planning, controlling, decision making and evaluating the performance of activities. For the Web-Based Instagram Content Management Information System Design project to Support SR12 Herbal Cosmetics' Brand Awareness, I used Agile (Scrum) due to the dynamic nature of digital marketing and potential changes to the Instagram API or business needs. This allowed SR12 to get core functionality faster and provide iterative feedback, ensuring the system built was truly relevant to their brand awareness needs.

Entamoeba histolytica is an intestinal protozoan that can cause diarrhea through fecal–oral transmission due to the consumption of food or water contaminated with parasitic cysts. Based on data from the Badan Pusat Statistik in 2017–2019, Simpang Keramat District, particularly Paya Leupah Village, still had limited access to clean water and low ownership of permanent sanitary latrines, which may increase the risk of environmental contamination. This study aimed to analyze the characteristics of dug wells and the risk factors associated with Entamoeba histolytica contamination in community well water. An observational analytic study with a cross-sectional design was conducted on 50 dug wells selected using purposive sampling. Data were obtained through field observations and laboratory examinations of well water samples. The results showed that most wells had distances to septic tanks that did not meet health standards (58%) and inadequate well floor conditions (82%), while the majority of wells had depths that fulfilled the recommended standard (76%). All well water samples tested negative for Entamoeba histolytica cysts; therefore, the association between risk factors and contamination could not be determined.

This study aims to analyze the characteristics of the soil at PIT North with two highwall and lowwall locations at PT Karya Putra Borneo, Kutai Kartanegara Regency, East Kalimantan Province. The research method was carried out by collecting primary data from the results of field tests using the sondir method with the Cone Penetration Test(CPT) tool and laboratory tests using physical properties, specific gravity, grain size, soil consistency, and consolidation tests, as well as secondary data from the results of literature studies. The parameters analyzed for soil characteristics include the sondir cone resistance (qc) value, grain size fraction distribution, soil plasticity index, and the rate of land subsidence through consolidation. The results showed that at PIT North the highwall area had a qc value of 5.6 Mpa, Fr 0.2%, IP 8.06%, Cc 1, a large rate of land subsidence of 3.3 mm with a settlement period of 4 years. In the lowwall area with a qc value of 10.31 Mpa, Fr 0.16%, IP 6.39%, Cc 0.535, the rate of settlement was 4.4 mm with a settlement period of 3 years. From these results, it is concluded that the soil at the highwall and lowwall locations has different compressibility, seeing the different soil Cc values and the soil plasticity index that affect the compressibility level of the soil and the value of the land settlement rate.

This study evaluates the implementation of spot-check testing for road preservation works in Manado City, specifically on the Kairagi–Mapanget segment, the Manado City–Wori boundary, and the Liwas Terminal Access Road, to identify existing problems and assess the effectiveness of engineering-based mitigation efforts. The objective is to examine construction quality compliance with technical specifications and identify operational challenges encountered on site. The methodology encompasses the measurement of asphalt layer thickness and density via a core drill, the examination of contract documents, the analysis of laboratory test results, and the execution of field observations. The findings show that most samples meet the required standards, although several locations require corrective action. Challenges arise from weather conditions, heavy traffic, equipment limitations, and the need for adaptation to updated technical regulations. Operational mitigation strategies, staff training, the use of core drill technology, and digital documentation were found to enhance accuracy and efficiency in evaluation. The research demonstrates the value of stakeholder collaboration and capacity building in supporting quality control for road preservation works. A multidimensional approach is effective in resolving technical and operational complexities in urban road projects.

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.

Coal quality must be controlled from the pit area to the ROM stockpile to ensure compliance with market specifications. However, hauling and stockpiling processes often lead to changes in coal characteristics. This study aims to analyze variations in proximate parameters between coal from Pit B1 and ROM Stockpile Km4 at PT Trisensa Mineral Utama and to identify factors contributing to these changes. The methodology includes field sampling at both locations, sample preparation based on ASTM standards, and laboratory testing of inherent moisture, residual moisture, ash content, volatile matter, and fixed carbon. The results indicate that coal undergoes quality changes after being stored in the stockpile, marked by a decrease in inherent moisture of 2.54% (from 17.64% to 15.10%), a decrease in residual moisture of 1.42% (from 17.17% to 15.75%), a slight reduction in ash content of 0.16%, a decline in volatile matter of 0.28%, and a reduction in fixed carbon of 0.18%. These changes are influenced by field conditions, material contamination during mining, rainfall, coal porosity, and handling activities at the stockpile. The findings highlight the need for improved sampling management, better surface water control, and stricter material handling procedures to minimize coal quality degradation.

The livestock sector in Gowa Regency, South Sulawesi, has great potential but is often threatened by outbreaks of Foot and Mouth Disease (FMD), which cause significant economic losses. This study aims to evaluate the FMD control policies implemented by the Gowa Regency Government based on William Dunn's six policy evaluation criteria: effectiveness, efficiency, adequacy, equity, responsiveness, and accuracy. The study used a qualitative approach with primary data collected through in-depth interviews with key informants from the Livestock and Animal Health Division of the Gowa Regency Livestock and Plantation Service and supporting data from various literature. The findings show that the FMD control policy is effective in achieving zero cases, but efficiency is hampered by limited medical personnel (only two veterinarians) and operational budget dependence entirely on the Central Government. Vaccine adequacy is a pull sistem (demand-driven) and compensation distribution is carried out fairly. Community responsiveness increased after severe losses, and policy accuracy was considered most optimal in the implementation of biosecurity and sanitation while promoting vaccination. As a recommendation, the Gowa Government needs to recruit contract workers in the field of animal health, allocate funds for the procurement of operational vehicles and equipment to support laboratory facilities, and issue a Regent Regulation that strictly regulates the implementation of biosecurity and livestock housing patterns in high-risk areas.

Indonesia's dependence on fossil energy, which reaches 98%, results in high CO₂ emissions and energy costs. This study aims to design a wind energy system to meet electricity needs at the Arafuru Field of the Indonesian Navy Academy (AAL), which is strategically located near the coast with adequate wind potential. A quantitative research method was used by collecting wind speed data for three months (January-March 2025) at coordinates 7.21755° S, 112.71022° E. The data shows an average wind speed of 2.32 m/s with unpredictable direction. Based on the analysis, the SH-X 10000 vertical wind turbine was selected as the most suitable solution. Calculation results show that one turbine unit can generate power of 104,999 watts, so to meet the total power requirement of 109,120 watts, at least 2 wind turbine units are needed. This system not only reduces dependence on PLN and fossil energy but also has the potential to reduce CO₂ emissions and can be utilized as a learning laboratory for AAL cadets. The implementation of wind energy at AAL's Arafuru Field is expected to be a concrete step in the transition towards renewable energy in the military environment.

Tomato crop yields face significant threats from plant diseases, with existing deep learning solutions often computationally prohibitive for resource-constrained agricultural settings; to address this gap, we propose Efficient Disease Attention Network (EDANet), a novel lightweight architecture combining depthwise separable convolutions with hybrid attention mechanisms for efficient Tomato disease recognition. Our approach integrates channel and spatial attention within hierarchical blocks to prioritize symptomatic regions while utilizing depthwise decomposition to reduce parameters to only 104,043 (multiple times smaller than MobileNet and EfficientNet). Evaluated on ten tomato disease classes from PlantVillage, EDANet achieves 97.32% accuracy and exceptional (~1.00) micro-AUC, with perfect recognition of Mosaic virus (100% F1-score) and robust performance on challenging cases like Early blight (93.2% F1) and Target Spot (93.6% F1). The architecture processes 128×128 RGB images in ~23ms on standard CPUs, enabling real-time field diagnostics without GPU dependencies. This work bridges laboratory AI and practical farm deployment by optimizing the accuracy-efficiency tradeoff, providing farmers with an accessible tool for early disease intervention in resource-limited environments.

Seeds that have exceeded their shelf life generally experience a decline in physiological quality, particularly in terms of viability and vigor. This study aims to determine the viability and vigor levels of several rice (Oryza sativa L.) varieties of Foundation Seeds (Benih Pokok/BP) after surpassing their shelf life. The tested varieties included Inpari 16, Inpari 42, Inpari 45, Sunggal, Memberamo, and Ciherang, obtained from Wonoketro Village, Jetis Subdistrict, Ponorogo Regency. The study was conducted through standard laboratory testing for germination rate and vigor. Results showed a decrease in germination capacity across all varieties, with varying degrees of decline. Inpari 45 showed a germination rate of 39%, Memberamo 33.67%, Sunggal 26.33%, and Ciherang 15.67%, compared to the initial value of 92%. These differences indicate that each variety responds differently to aging and storage conditions. The findings serve as a basis for decision-making regarding the use of expired seeds and are important for seed management in the field.

Kebonagung hamlet in Sukolelo village is an area where the majority of residents cultivate bananas. The abundant banana production generates a considerable amount of waste, one of which is banana stems that are usually piled up, burned, or left to rot without further use. Therefore, this community service project aims to provide a comprehensive overview of the potential use of banana waste as raw material for organic compost in Kebonagung Hamlet, Sukolelo Village. The methods used in this study involved banana farmers as research subjects and banana stems as research objects, with data collection techniques including field observations, interviews with farmers, and composting experiments. Simple laboratory analysis shows that compost from banana waste contains 1.8% nitrogen (N), 0.9% phosphorus (P), and 2.3% potassium (K), making it highly potential for use as compost material. In addition, composting activities can create new jobs through the development of organic fertilizer management business units at the village level. This is in line with Sustainable Development Goal (SDG) 12 on responsible consumption and production. According to Santoso (2020), the benefits of compost include: (a) improving soil structure, (b) increasing soil water storage capacity, (c) increasing soil microbial activity, and (d) reducing dependence on chemical fertilizers. Qualitative data were analyzed through data reduction, data presentation, and conclusion drawing in the form of nutrient content analyzed using simple laboratory tests to determine the levels of N, P, and K. The banana waste composting process went well. In the first week, the temperature of the compost pile increased to 45°C, indicating high microorganism activity. The temperature stabilized at around 50–55°C. After the second week, the temperature decreased and stabilized close to the ambient temperature, indicating that the compost was mature.

This article examines the implementation of the Quality Control (QC) system at PT Yakult Indonesia Persada as part of the Field Work Lecture (KKL) activities. The main focus of the research is how the company maintains the consistency of the quality of probiotic products through thorough quality control. This research aims to provide an in-depth understanding of the implementation of QC which includes physical, chemical, microbiological testing, and quality assurance of production equipment. The methods used are direct observation in the field and literature review related to food quality standards. The results of the observation show that PT Yakult applies the principles of Good Manufacturing Practices (GMP), Statistical Process Control (SPC), and Total Quality Management (TQM) in an integrated manner in the entire production process. Quality control is carried out through Specific Gravity (SG), pH, and the number of Lactobacillus casei Shirota bacteria with a minimum standard of 6.5 billion per bottle. In addition, sterilization of production equipment is carried out in layers and validated through laboratory tests, and is supported by systematic recording of test results. These findings show that the QC system at PT Yakult not only focuses on the final product, but also covers the entire production stage. With this approach, the company is able to consistently ensure the quality, safety, and health benefits of products, as well as meet applicable food industry standards.

Tempoyak is a traditional Indonesian fermented food made from the flesh of durian (Durio zibethinus Murr.), which undergoes spontaneous fermentation driven by indigenous microorganisms. The fermentation process generally occurs under anaerobic conditions and is primarily dominated by lactic acid bacteria (LAB), including species such as Lactobacillus, Leuconostoc, and Pediococcus. These bacteria play a crucial role in modifying the physicochemical properties of the product, including a significant reduction in pH, an increase in the concentration of organic acids, and the formation of volatile compounds responsible for tempoyak’s distinctive aroma and overall flavor complexity. In addition to enhancing its unique sensory profile, the fermentation process also extends the shelf life and introduces probiotic potential to the final product. This study aims to observe and analyze the microbiological and chemical aspects of tempoyak fermentation and to evaluate its potential as a local functional food with health-promoting properties. Laboratory tests and microbial analyses confirmed that the fermentation process not only retains essential nutrients but also promotes the growth of beneficial bacteria, provided the production conditions are hygienically maintained at all stages. The study emphasizes the importance of controlled fermentation techniques to ensure product safety and consistent quality. Furthermore, the findings reveal that tempoyak could serve as a promising probiotic-rich food that supports digestive health, contributing to the diversification of traditional Indonesian fermented foods. With its appealing flavor, cultural value, growing consumer interest, and potential health benefits, tempoyak holds significant promise for future development and commercialization, particularly in the field of functional food innovation rooted in indigenous culinary practices.

Feed is the most important factor in broiler farming to achieve optimal productivity, because feed costs reach 60-70% of the total production costs, therefore the quantity and quality of feed need to be considered. Efforts that can be made to increase feed efficiency and reduce production costs in broiler farming businesses are by adding feed additives. This study aims to evaluate the effect of adding shallot peel flour as a feed additive on antibacterial activity and characteristics of broiler intestines. The method used in this study is a laboratory analysis method and a field experimental method designed using a Completely Randomized Design (CRD) with 6 treatments and 5 replications. The results showed that the treatment of adding red shallot peel flour as a feed additive gave a very significant difference (P <0.01) on the pH, viscosity, length of villi and surface area of the villi of the small intestine of broiler, but gave no significant difference (P>0.05) on the number of villi and depth of the crypts of the small intestine of broiler. The conclusion of this study is that the addition of red shallot peel flour with a level of 1% as an additive in feed gives the best results in improving the characteristics of the small intestine of broiler.

This study aims to analyze the effect of high-lob technique on petanque sport pointing using a concrete field surface. The method used is descriptive research with implementation at the Petanque Laboratory of Surabaya State University. The subjects of the study were five Unesa petanque athletes who were selected based on their technical skills. Data collection techniques include field observation, skill tests, documentation, and data analysis using the Kinovea and Capcut applications. The results showed that at a distance of 6 meters, the release angle was 63.5°, the height was 3.53 m, the rolling distance was 35 cm, and the final result was 8.5 cm. At a distance of 7 meters, the release angle was 63.4°, the height was 4.01 m, the rolling distance was 53 cm, and the final result was 10.4 cm. At a distance of 8 meters, the release angle was 62.3°, the height was 3.99 m, the rolling distance was 59 cm, and the final result was 13.4 cm. Meanwhile, at a distance of 9 meters, the release angle is 60.3°, the height is 4.16 m, the roll is 53 cm, and the final result is 19.2 cm. All parameters have met the effectiveness criteria based on existing references, except for the rolling distances at 7, 8, and 9 meters which exceed the ideal limit. These results imply that adjusting the drop point and increasing the angle and height of the bounce can optimize the results of the high-lob pointing technique.

Mining roads play an important role in supporting the smooth running of mining activities, especially in the process of transporting materials. The bearing capacity of the soil as a road subgrade greatly affects the stability and resistance of the road to heavy equipment loads. This study aims to analyze the effect of the plasticity index and compaction parameters on the California Bearing Ratio (CBR) value, as well as to determine the thickness of the road layer based on the laboratory CBR value. Testing was carried out at the South Pit of PT. Bina Sarana Sukses site PT. Baramulti Suksessarana with a field test method using the Dynamic Cone Penetrometer (DCP) and laboratory tests such as proctor tests, Atterberg limit tests, and CBR tests on various variations of clay and sand soil mixtures. The results showed that increasing the plasticity index decreased the CBR value, while increasing the maximum dry density and decreasing the optimum water content increased the CBR value. Based on the laboratory CBR value, recommendations were obtained for the appropriate road layer thickness to ensure optimal bearing capacity for heavy equipment passing through the research area.

Education is an important aspect in improving the quality of human resources, especially in higher education in the field of engineering where a deep understanding of technical material is needed. The Electrical Circuit course is often a challenge because there are many abstract concepts that are difficult for students to understand. This study aims to analyze the effect of using PhET Simulation as a technology-based learning media to improve the learning outcomes of Electrical Engineering students in the Electrical Circuit course, as well as evaluating its ability to increase student involvement and become an alternative to limited laboratory experiments. The study used a One-Group Pretest-Posttest design with a sample of 30 students. Data was collected through pretest and posttest, then analyzed using N-Gain test. The results showed that there was a significant increase in the average student score from 59.07 in the pretest to 81.87 in the posttest, with an N-Gain score of 0.55 which was included in the moderate category. This finding proves that PhET Simulation is effective in improving the understanding of Electrical Circuit concepts, as well as increasing student engagement through interactive learning. This simulation also provides flexibility in conducting virtual experiments, so it can be a solution to the limitations of physical laboratories.

Bridge infrastructure is a vital component of transportation systems that is vulnerable to structural damage caused by dynamic loads, environmental factors, and aging. Early crack detection is crucial to prevent structural failures that may lead to catastrophic consequences. This study aims to develop a non-destructive detection method based on acoustic sensors to identify cracks in bridge structures with higher sensitivity and accuracy compared to conventional visual inspections. The research was conducted through laboratory experiments and field tests using acoustic sensors, data acquisition devices, and signal analysis software. The procedure included sensor installation on a bridge model, simulation of artificial cracks with varying sizes and positions, recording of acoustic wave signals, and data analysis using frequency spectrum, amplitude, and waveform pattern approaches. The results show significant differences between normal and cracked conditions in the frequency spectrum, where cracks produced amplitude anomalies at specific frequencies. Amplitude analysis revealed a positive correlation between crack size and acoustic signal intensity, while waveform pattern analysis demonstrated the influence of crack position on distortion levels. Cracks located at the center generated the highest distortion, followed by joints and edges. These findings confirm that acoustic sensors, particularly fiber-optic-based ones, offer advantages such as high sensitivity, reliability under complex environmental conditions, and the ability to detect subsurface cracks. The implications of this research highlight the potential development of an acoustic sensor-based structural health monitoring system integrated with real-time analysis software, thereby supporting preventive maintenance, extending infrastructure lifespan, and enhancing transportation safety.

Modern agriculture faces serious challenges such as climate change, soil degradation, and dependence on chemical fertilizers and pesticides, which negatively impact the environment and human health. To support sustainable food security, innovative and environmentally friendly solutions are required. One promising alternative is the use of endophytic bacteria as biological agents to enhance plant growth without relying on synthetic chemicals. This study aims to examine the role of endophytic bacteria in organic farming systems through a combination of laboratory tests and field experiments. The research stages include isolation and identification of endophytic bacteria from plant tissues, testing the ability of the bacteria to support plant growth in vitro, and applying it to organic farmland to evaluate resistance to pests and crop yields. The independent variable in the study is the type of endophytic bacteria, while the dependent variables include plant growth rates, pest resistance, and crop productivity. Data analysis was performed using descriptive statistics and ANOVA, followed by post-hoc tests to determine the effectiveness of the treatments. The results showed that treatments with endophytic bacteria, both singular and combined, significantly improved vegetative growth, reduced pest attacks, and increased crop yields compared to the control. The combination of bacterial isolates proved to have a stronger synergistic effect than single treatments. These findings demonstrate the potential of endophytic bacteria as natural biofertilizers and biopesticides to support environmentally friendly organic farming.

Understanding electric motors and transformers is crucial in the field of electrical power engineering education. To enhance practical learning, a trainer was designed for single-phase AC motors, incorporating an Earth Leakage Circuit Breaker (ELCB) safety system to prevent electric current leakage, which could pose a risk during experiments. The aim of this research is to design and develop a trainer module that serves as both an interactive and safe learning tool for laboratory practicums. The trainer is equipped with a safety circuit, along with controllers such as a voltmeter, ammeter, selector switch, pushbutton, relay, and potentiometer, allowing students to understand and control various electrical parameters. The tool underwent voltage measurements and functional tests at three distinct measurement points to evaluate its performance and safety features. The results demonstrated that the trainer performed effectively, significantly enhancing students' practical understanding of electric power systems and contributing to better hands-on learning experiences in electrical engineering.