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This study discusses the application of the K-Means Clustering algorithm in the car rental ordering system. The objective is to help group booking data based on certain patterns such as car type, booking frequency, and rental duration. The clustering results are expected to improve service efficiency and help companies better understand customer preferences. The research was conducted using historical car rental booking data from a rental company. The results show that the K-Means method can successfully cluster booking data into several useful clusters for business decision-making. This extended paper also explores theoretical concepts of clustering, related studies, limitations of the method, and potential future enhancements such as integrating predictive analytics. It highlights the importance of transforming large volumes of raw booking data into actionable business intelligence to support marketing strategies, fleet management, and customer segmentation.  

This study aims to analyze the prediction of financial distress using the Altman Z-Score, Springate, and Zmijewski methods at PT Sri Rejeki Isman Tbk in 2019-2023. This type of research is descriptive research with a quantitative approach. Using secondary data with documentation techniques and literature studies in the form of related company financial reports, books, articles, journals and other publications related to the research topic. The sampling technique was carried out using a purposive sampling method. The sample in this study was obtained using a purposive sampling technique and obtained as many as 5 financial reports from the company PT Sri Rejeki Isman Tbk for the period 2019-2023. The results of the study show that the results of calculations using the Altman Z-Score method indicate that in 2019-2023 PT Sri Rejeki Isman Tbk experienced fluctuations in the company consistently still in the category of bankruptcy, the Springate method shows that the company experienced a decline in its financial performance, and the Zmijewski method shows that companies that experience fluctuations in financial performance conditions, Although there are fluctuations in the X-Score value and improvements in certain years.

A 64-year-old male patient presented to the emergency department (ED) of RS Cut Meutia with complaints of left-sided chest pain radiating to both arms, which had been occurring for two days prior to his hospital admission. The chest pain was described as sharp, sudden, and progressively worsening, and it persisted without relief from positional changes. The pain intensity was rated as 9/10 and was accompanied by cold sweats and nausea. The patient had a history of type 2 diabetes mellitus for 15 years and had been on antidiabetic medications, although he could not recall the names of the medications. The patient was a smoker but had quit smoking upon being diagnosed with diabetes. Vital signs and general status were within normal limits upon examination. Local examination of the heart revealed a murmur on auscultation. Laboratory results showed anemia, leukocytosis, hyperglycemia, and hypercholesterolemia. Electrocardiography (EKG) indicated signs of inferior STEMI (ST-Elevation Myocardial Infarction). The patient was treated with furosemide 1 amp/12 hours, atorvastatin 1x20 mg, arixtra 1x0.25 mg, aspilet 1x8 mg, clopidogrel 1x75 mg, nitrokaf retard 2x2.5 mg, and bisoprolol 1x2 mg, along with non-pharmacological management, including three-way catheter insertion and oxygen therapy at 2-4 liters per minute. Acute Coronary Syndrome (ACS) carries a poor prognosis if not managed promptly and correctly. Understanding the appropriate management of ACS is crucial in preventing further myocardial occlusion and improving patient outcomes. Therefore, rapid and accurate intervention is vital in improving the prognosis for patients with ACS.

This study aims to analyze the performance of state-owned enterprises (BUMN) from a financial aspect based on the financial ratios stated in the Ministerial Decree No. KEP-100/MBU/2002 at PT. Adhi Karya (Persero) Tbk for the 2019-2023 period. This type of research is quantitative descriptive research. Using secondary data in the form of related company financial reports. The sampling technique was carried out using the purposive sampling method and obtained 5 financial reports from the company PT Adhi Karya (Persero) Tbk for the 2019-2023 period. The results of the study showed that the ROE calculation results experienced a drastic decline in 2020 with a value of 0.43% and began to increase in the following years, ROI increased in 2021 with a value of 22.99% but decreased again in the following year and showed unstable performance, The cash ratio showed significant growth and reached its highest value in 2023 at 18.03%, the current ratio showed unstable performance, reaching its lowest point in 2021 at 101.52%, The collection period value reached its highest point in 2023 with a total of 124.06 days, inventory turnover experienced an increase in performance so that in 2023 it was recorded at 103.37 days, TATO showed unstable performance reaching its lowest value in 2022 with a value of 87.36%, and Total Equity to Total Assets reached its lowest value in 2021 at 14.18% and began to increase in the following year.

Tempoyak is a traditional fermented paste made from durian in Indonesia, favored by the Malay ethnic group. While tempoyak holds a unique and significant place in Indonesia's rich culinary diversity, there is a notable gap in research about it compared to other fermented foods such as kimchi. More investigation is essential to grasp the microbial composition, interactions, and possible health advantages of tempoyak, which may offer benefits like boosting the immune system, reducing cholesterol levels, exhibiting probiotic qualities, preservation, and possessing antibacterial effects. Researchers could also discover vital insights regarding the history, cultural significance, production methods, microbiological issues, nutritional aspects, and future prospects of local foods like tempoyak. This research intends to examine and study tempoyak as a traditional fermented food through comprehensive literature review and data from earlier investigations. Tempoyak has a strong connection to Malay cultural identity, regardless of its production location. As a key element of the daily practices of the Malay people in Indonesia, tempoyak is typically featured at cultural events, weddings, or large gatherings. This cultural importance sets Indonesian tempoyak apart from its Malaysian counterpart. The process of making tempoyak involves mashing the durian flesh, mixing in salt, and letting the combined mixture ferment in a sealed container at room temperature for 4 to 7 days. The microbial population in tempoyak can differ but mainly includes Lactobacillus species, particularly Lactobacillus plantarum. Proximate analysis is an effective approach to evaluate the nutritional makeup of tempoyak. Differences in nutrient levels may arise from the various types of durian, salt elements, sterilization periods, temperatures, and length of fermentation. Potential research opportunities could explore tempoyak’s role in fostering sustainable food practices, additional health benefits from its consumption, and the development of innovative products based on tempoyak. The aim of this study will enhance the field and aid in safeguarding and promoting the culinary heritage of the Malay community.

Background: The scheduling of work of health workers, especially radiographers in type B hospitals, is a complex challenge due to the variety of radiology modalities, variations in the number of human resources, and the provisions of working hours regulations from the Ministry of Health of the Republic of Indonesia. Manual scheduling that is still in use tends to cause workload inequality, conflicts between employees, and operational inefficiencies. Objective: This study aims to design and develop an Artificial Intelligence (AI)-based radiographer shift scheduling system that is able to prepare work schedules automatically, fairly, flexibly, and integratedly, in accordance with hospital service regulations and needs. Research Method: This type of research is Research and Development (R&D). The development process is carried out through the stages of needs analysis, designing Python and Flask-based systems, simulating tests on data, and expert validation then the data collected and described from the initial mapping and also mapping potential problem-solving. Results: The system successfully manages morning, noon, night, and holiday shift schedules based on competence, fair rotation, and maximum working hours provisions. By showing a significant difference between user perceptions before and after using the system, which reflects improved efficiency, fairness, and ease of access to schedules. Respondents expressed satisfaction with the override feature and integrated notifications. Conclusion: The development of an AI-based radiographer shift scheduling system has proven to be feasible and effective in overcoming managerial problems of work scheduling in hospitals. This system is able to increase efficiency, transparency, and user satisfaction, and has the potential to be widely applied to various types of hospitals in Indonesia.

Cassava (Manihot esculenta) is a staple food that is widely consumed by the Indonesian population, especially in rural areas. However, during post-harvest handling and storage, cassava is highly susceptible to contamination by microorganisms, particularly fungi. These fungi can cause damage to the food, reduce its nutritional quality, and even produce mycotoxins that are harmful to human health. The increased risk of contamination has become an important concern in efforts to improve the quality and safety of cassava food products. This study aimed to identify the morphology of fungal colonies and the characteristics of fungal cell walls isolated from cassava stored in open environmental conditions for several days. The methods used in this study included isolation using Potato Dextrose Agar (PDA) media, macroscopic observation of fungal colony morphology, including color, edge, elevation, and texture, as well as Gram staining to observe the fungal cell wall properties. The results of this study revealed a diversity of fungal colony morphology, with three dominant types suspected to belong to the genera Aspergillus, Penicillium, and Rhizopus. Gram staining showed that the three isolates were characterized as Gram-negative, indicated by the absorption of safranin as the secondary stain. This study provides an initial overview of the types of fungi that may develop on cassava during storage, and it offers a foundation for further studies on the toxicity and food microbiology applications related to cassava. Morphological identification and Gram staining play an essential role in the initial screening before molecular identification is performed.

This study aims to design and develop an expert system to assist in diagnosing diseases in dairy cattle at Cibugary Farm using the Forward Chaining method. The background of this research lies in the limited knowledge of farmers in identifying early symptoms of diseases, which often leads to delays in medical treatment and negatively affects dairy cattle productivity. To address this issue, an expert system was designed to replicate the reasoning process of a human expert through a knowledge base containing diagnostic rules derived from observable symptoms. The Forward Chaining method was chosen because of its capability to trace facts from known symptoms toward a conclusion regarding the type of disease affecting the cattle. The system was developed by incorporating common disease symptoms, inference rules, and a decision-making mechanism that simulates expert analysis. Testing was carried out on several diagnostic scenarios to evaluate the accuracy and efficiency of the system. The results of the study indicate that the expert system can provide an initial diagnosis quickly and accurately, producing outputs consistent with expert assessments. This functionality assists farmers in making timely decisions regarding appropriate medical interventions, thereby reducing treatment delays and minimizing the risk of disease transmission within the herd. Consequently, the Forward Chaining-based expert system is expected to serve as an innovative solution to improve dairy cattle health management and support sustainable livestock productivity at Cibugary Farm.

Compensation for employee has a significant impact on employee discipline and performance. According to Hasibuan, compensation includes all types of income received by employees, both in the form of money and goods, either directly or indirectly in return for the contribution they make. The purpose of this study is to test the compensation and work discipline that affect the performance of PT Prima Soeaka Buana employees. The method used is a descriptive quantitative method, namely with multiple linear regression analysis. The results showed a calculated value of 9.326 > a table of 1.998 and a value of Sig. 0.000 < 0.05 so that compensation and employee performance were partially influential and significant. Seen on the T test, it shows that Ho is rejected and H1 is accepted. For work discipline, there is no positive and partially significant influence on employee performance. Seen in the T test with a tcal value of 0.649 < ttable of 1.998 and a Sig. value of 0.519 > 0.05. So, Ho was accepted and H2 was rejected. In both variables of compensation and work discipline, there is a simultaneous positive and significant influence on employee performance. Seen in the F test with a fcal value of 43.930 > ftable 3.140 and a Sig. value of 0.000 < 0.05. So, Ho refused H3 to accept.

The waste problem in Tamanan village is an issue that needs serious attention because of its impact on environmental pollution and public health. One of the main challenges is the low awareness of residents, especially elementary school children, in terms of good and correct waste management. A lot of waste is thrown carelessly without sorting, which results in a decrease in the quality of cleanliness and health of the village environment. This community service program aims to improve students' understanding and skills in waste management through a Participatory Action Research (PAR) approach for 40 days. This program involves students of MI Nurur Rahman and SDN Tamanan 1 as the main subjects. The activities carried out include socialization about the importance of waste management, the delivery of material on types of waste, as well as the practice of sorting organic, inorganic, and B3 waste. In addition, the installation of educational media in the school environment and evaluation monitoring were also carried out. The results of the evaluation showed that 73% of students were able to answer the quiz questions correctly ≥70%, which indicates their good understanding of waste management. Some students also began to implement the habit of separating waste at home and inviting families to participate. Support from village officials and the existence of educational media are expected to strengthen the sustainability of this program. Participatory approaches have proven to be effective in raising environmental awareness and can be implemented sustainably through collaboration between schools, communities, and village governments.

This study aims to analyze the effect of Total Asset Turnover (TATO) and Debt to Equity Ratio (DER) on stock prices at PT Unilever Indonesia Tbk for the period 2014 to 2023. This research uses a quantitative approach with an associative type of research. The data used is secondary data obtained from the company's annual financial statements and the official website of the Indonesia Stock Exchange. The data analysis method used is multiple linear regression, preceded by classical assumption tests to validate the model. The results show that partially, DER has a significant effect on stock prices, while TATO does not have a significant effect. However, simultaneously, both TATO and DER have a significant influence on stock prices. This indicates that the company’s capital structure plays an important role in influencing stock value in the capital market. Therefore, it is recommended that company management be more prudent in managing debt and improving asset utilization efficiency to attract investors and maintain the company’s stock price stability in the market.

Red beans (Phaseolus vulgaris L.) are a type of legumes (Leguminaceae) that have a high content of starch and fiber. The high fiber content causes red beans to prevent coronary heart disease. Red beans also have a low glycemic index so they can lower cholesterol levels in the blood and the risk of diabetes. Red beans also contain phenolic compounds that act as antioxidants in the body. Red beans are classified as food ingredients that can support the increase in nutritional value because they are classified as a relatively affordable source of vegetable protein. The purpose of this counseling is to provide knowledge and processed skills from local commodities, in this case red beans, to students majoring in Agribusiness of Agricultural Products at SMK Negeri 1 Bawen. This activity was attended by 68 students majoring in Agribusiness and Agricultural Products and 1 assistant teacher from SMK Negeri 1 Bawen, Semarang Regency. The method of this red bean processing extension activity is to increase the knowledge and skills of making processed local food products with several methods: a. The lecture method provides the theory and practice of making kidney bean cookies. b. Practice method of making red bean cut ice. c. The question and answer method, used to provide feedback to participants about the material that has been presented during the activity. d. Evaluation is given by providing pre test and post test. After the implementation, it showed that the target, namely students of SMK Negeri 1 Bawen, increased their knowledge and understood the importance of post-harvest handling and processing of red beans with the practice of making red bean cut ice. This is based on questions and answers, interviews and questionnaires shared before and after the activity. From the results of the questionnaire conducted before and after the activity, it showed that: After the implementation, there was a 50.17% increase in knowledge about kidney bean processing, Knowledge about making kidney beans into cut ice increased by 65.32% and Knowledge of other processed kidney beans such as kidney bean cookies showed that there was an increase of 67.15% after counseling. The conclusions that can be drawn from this counseling activity are (1) Processed red bean extension activities can increase the knowledge and understanding of the participants (2) The responses given by the counseling participants show a fairly satisfactory interest and there is a desire to apply the newly acquired knowledge to be socialized in the surrounding environment.

This study aims to determine and analyze whether leadership, work environment and organizational culture have a joint influence on employee performance at Perum Damri Bandar Lampung City. The type of data in this study uses quantitative research using primary and secondary data. The sample used is Non-Probability Sampling with saturated sampling type. With a sample of 60 employees who work as office staff at Perum Damri Bandar Lampung City. The analysis technique used is through validity, reliability, classical assumptions and hypothesis tests. From the results of the research that has been done shows that Leadership has an influence and is significant on Employee Performance with an influence contribution of 26.1%. Work Environment has an influence and is significant on Employee Performance with an influence contribution of 25.7%. Organizational Culture has an influence and is significant on Employee Performance with an influence contribution of 37.3%. Leadership, Work Environment and Organizational Culture have a simultaneous and significant influence on Employee Performance at Perum Damri Bandar Lampung. Leadership, Work Environment and Organizational Culture have an influence and are significant on Employee Performance at Perum Damri Bandar Lampung by 89.1%. The remaining 10.9% is influenced by other factors not examined in this study.

The rapid development of information technology has significantly impacted various sectors, including education. SDN 21 Bantan, an elementary school in Bengkalis Regency, faces challenges in managing student grades manually, which is time-consuming and prone to errors, particularly in compiling report cards. This study aims to design a web-based student grade management information system using the Scrum methodology, which is agile and adaptive. The system is designed to assist teachers in processing student grades quickly and generating computerized report cards. The Scrum method is implemented through stages such as Product Backlog, Sprint Planning, Daily Scrum, and Sprint Retrospective. User requirements are identified using the MoSCoW technique, while task estimation is conducted with Planning Poker. The system supports three main types of users: admin, teacher, and principal, each with specific access rights based on their needs. The results show that the developed system facilitates efficient student data management, grade processing, and report card generation. As a web-based system, it allows users to access and manage data anytime and anywhere with an internet connection. This system is expected to improve the effectiveness and efficiency of student grade management at SDN 21 Bantan and serve as a reference for developing similar systems in other educational institutions.

The Sugio–Tlanak Road Section, Sugio District, Lamongan Regency, is a vital transportation infrastructure as it connects interregional activities, both in economic, social, and community mobility aspects. This road is the main route used by various types of vehicles, from light vehicles to heavy vehicles with quite high traffic intensity. This condition has a significant impact on the quality of the road pavement, as indicated by the presence of various types of damage at several points, such as cracks, potholes, and road surface deformation. Therefore, a comprehensive evaluation is needed to determine the level of road damage as a basis for consideration in planning maintenance and repairs. This study uses two assessment methods, namely the Bina Marga method and the Pavement Condition Index (PCI). The Bina Marga method assesses road conditions based on the Surface Distress Index (SDI) value obtained from direct identification in the field. The evaluation results show that the road condition on the Sugio–Tlanak section is classified as severely damaged at 60%, moderately damaged at 30%, and good condition at only 10%. Meanwhile, the PCI method provides results in the form of more detailed quantitative values. The analysis results obtained an average PCI score of 58.6, which is included in the Fair category. A comparison of the two methods shows that the Bina Marga method has advantages in terms of speed and ease of implementation, but its assessment is relatively subjective. In contrast, the PCI method provides more accurate and measurable results because it uses a quantitative approach with clear damage condition parameters. Therefore, although the Bina Marga method can still be used for rapid assessments in the field, the PCI method is more recommended as a basis for technical decision-making in planning road maintenance and quality improvement programs.

The low level of understanding among elementary school students regarding common diseases and their prevention can increase the risk of both communicable and non-communicable diseases from an early age. Therefore, effective health education efforts are essential to instill healthy habits in children. This community service activity aimed to improve the knowledge of elementary school students in the working area of Labuhan Sumbawa Public Health Center about common diseases and preventive measures through an interactive educational approach. The methods used included health counseling with visual media, engaging educational games, and small group discussions to encourage active participation. The activity was conducted in June 2025, involving 30 students from two elementary schools selected purposively. The educational content focused on dengue fever, diarrhea, influenza, helminthiasis, and acute respiratory infections (ARI), along with prevention strategies such as maintaining personal hygiene, consuming nutritious food, and the importance of immunization. Evaluation was carried out through pre-test and post-test assessments to measure the improvement in students’ understanding. The results showed a significant increase in students’ knowledge of the delivered material. Additionally, students demonstrated high enthusiasm and active involvement during the sessions, particularly in the educational games. These findings indicate that an interactive educational approach is effective in enhancing students’ understanding of disease prevention. This program is expected to serve as a model for sustainable health education in other elementary schools to prevent diseases from an early age and support the implementation of clean and healthy living behaviors within the school environment

UMKM Tahu XYZ, a small-scale tofu producer, is currently facing significant challenges in maintaining consistent product quality, primarily due to a high defect rate. Common issues identified include crumbled tofu shapes, overly soft textures, and inconsistent taste, which negatively impact customer satisfaction and business sustainability. This study aims to investigate the root causes of these quality issues and propose practical solutions using the Lean Six Sigma methodology. The research employs a descriptive quantitative approach through the DMAIC framework—Define, Measure, Analyze, Improve, and Control—to ensure systematic problem-solving. Data were collected over a six-month period through direct observation, structured interviews, and review of production records. The analysis identified four dominant types of waste within the production process: unnecessary transportation, product defects, excessive movement, and over-processing. The root causes of these inefficiencies are linked to poor handling of raw materials, variability in soybean quality, and an ineffective production layout that hampers workflow and consistency. To address these problems, the study proposes several targeted interventions, including the redesign of the production layout to optimize flow, the implementation of the 5S (Sort, Set in order, Shine, Standardize, Sustain) workplace organization method, the development of standardized operating procedures (SOPs), and the adoption of improved soybean boiling technology. The implementation of these improvements is projected to significantly reduce product defects, enhance process efficiency, and ultimately increase customer satisfaction. Furthermore, these actions are expected to improve the overall competitiveness of UMKM Tahu XYZ within the highly demanding food industry sector. This research provides actionable insights for other micro, small, and medium enterprises (MSMEs) seeking to apply structured quality control methods to strengthen operational performance and long-term business resilience.

This study aims to analyze and improve the quality control of packaging printing production at PT XYZ by applying the Lean Six Sigma methodology. Lean Six Sigma combines waste reduction principles with statistical quality control to achieve operational excellence. The research identifies major production challenges, including high defect rates, overproduction, and ineffective inventory management, all of which contribute to increased costs and reduced efficiency. The DMAIC framework—Define, Measure, Analyze, Improve, and Control—was employed to systematically address these issues. During the Define and Measure phases, types of waste were identified and defect rates were calculated using Defects Per Million Opportunities (DPMO). In the Analyze phase, root causes were examined using a Fishbone (Ishikawa) diagram, highlighting factors related to manpower, materials, machines, and methods. The analysis revealed a sigma level of 3.2, indicating a moderate level of process quality and substantial room for improvement. To address the identified issues, several improvement strategies were proposed. These include implementing a Just-In-Time (JIT) system to reduce inventory waste, adopting the First-In-First-Out (FIFO) inventory method for better material rotation, and conducting targeted technical training for operators to minimize human error. In the Control phase, the study suggests process standardization, routine inspections, and continuous monitoring as key practices to ensure that improvements are sustained over time. The findings and recommendations from this study are expected to contribute to better quality control, reduced operational waste, and enhanced productivity in the packaging printing process. Ultimately, this approach aims to strengthen PT XYZ’s competitiveness in the printing industry by fostering a culture of continuous improvement and quality excellence.

This study presents a modal analysis of Pertamina EP Cepu’s closed drain pump 510-P9002, which operates in the condensate–water treatment unit of the Jambaran Tiung Biru field. Field vibration measurements conducted in August 2024 indicated a fundamental frequency of 25 Hz, corresponding to 1×RPM of the driving motor, with maximum amplitudes reaching 13.46 mm/s. Such excessive vibration poses risks of mechanical damage, reduced equipment service life, and potential operational failure. To address this issue, finite element analysis (FEA) was employed to examine the dynamic response of the pump, determine its natural frequencies, and identify possible resonance conditions. A CAD model of the pump–vessel assembly was developed, meshed, and analyzed under actual boundary conditions. The results showed several natural frequencies ranging between 23.16 and 26.65 Hz, which are close to the excitation frequency, suggesting a very high likelihood of resonance. Various structural modifications were then evaluated, including a half casing and two types of full casings. Among these, the full casing B design provided additional stiffness in the motor support area; however, none of the modifications effectively reduced vibration within the internal components. Based on these findings, the study recommends the implementation of a dynamic vibration absorber (DVA) tuned to the excitation frequency, along with the redesign of structural components to shift natural frequencies away from operating excitation. These solutions are expected to improve operational stability, extend equipment lifespan, and enhance overall system reliability. The outcomes of this research provide important insights for managing vibration issues in pump systems operating under similar conditions, particularly in the oil and gas industry where continuous, stable operation is critical.

Indonesia has many types of junk food that have a strong taste, but are generally not nutritionally balanced, namely high in fat, salt, or sugar and low in fiber. One of the most popular is nuggets which are generally made from meat. As a healthier alternative, nuggets are made using oyster mushrooms which are low in fat and higher in fiber, and combined with gluten-free and high-fiber corn and tapioca flour to replace wheat flour which contains gluten. This study aims to determine the effect of the combination of corn and tapioca flour on the physicochemical characteristics of oyster mushroom nuggets. This study used a Completely Randomized Design (RAL) with 5 treatments in duplicate. The formulation was used with a combination of corn and tapioca flour, namely 60: 0 (P1), 45: 15 (P2), 30: 30 (P3), 15: 45 (P4), and 0: 60 (P5). The results of the analysis have an effect (P <0.05) on chemical characteristics with a range (db%) of ash content of 3.9% -4.71%; fat content 1.37% - 7.76%; protein content 6.79% - 18.79%; carbohydrate content 71.46% - 77.43%; crude fiber 3.9% - 8.27%, and on physical characteristics with a textured range of 1.1N-2.69 N; color L 50.55- 53.73; color a 2.78- 4.64; color b 10.89-13.71. The implications of this study indicate that online substitution into mushrooms with a combination of corn flour and tapioca can affect the nutritional value and quality of nuggets.