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This research is motivated by the importance tank cleaning process on tankers to prevent cargo contamination, maintain cargo quality, and ensure crew safety. MT. Marina Prosperity, a chemical/oil tanker, uses the Butterworth system as the primary method for tank cleaning at every cargo change. However, in practice, technical and operational constraints are still found that affect the results of tank cleaning. The research method used is descriptive qualitative with data collection techniques through direct observation on the ship, interviews with the Chief Officer and Boatswain, and documentation studies in the form of log books and SOPs. Data were analyzed by focusing on three aspects, namely work efficiency, work safety, and operational procedures for using Butterworth. The results show that the use of Butterworth can increase time and energy efficiency compared to manual methods, with an average cleaning time of 2–4 hours per tank depending on the type of cargo. From a safety aspect, Butterworth reduces the need for crew to enter the tank, thereby reducing the risk of exposure to chemicals and hazardous atmospheres. However, work effectiveness and safety are greatly influenced by the condition of the equipment, the stability of water pressure, and the crew's discipline in implementing the SOP. On several occasions, steps such as nozzle cleaning, manual mopping, and safety meetings were not consistently performed, resulting in residual load in certain areas. With routine equipment maintenance, close supervision, and ongoing crew training, Butterworth can be optimized to produce more effective, safe, and standards-compliant tank cleaning process.

The increasing demand for electrical energy and the limited availability of fossil fuels have driven the development of renewable energy sources, including marine current energy, which remains underutilized in coastal and remote maritime regions. This study presents the design and realization of a small-scale marine current power generation prototype using a horizontal axis propeller turbine with a NACA S814 blade profile and analyzes the effect of turbine rotational speed on electrical power output. The system converts marine current kinetic energy into mechanical energy through turbine rotation and subsequently into DC electrical energy using a generator, which is stabilized by a Buck–Boost Converter and Maximum Power Point Tracking (MPPT) for charging a 12 VDC battery. Real-time monitoring of electrical and mechanical parameters is implemented using an Internet of Things (IoT)–based system comprising an ESP32 microcontroller, a PZEM-017 sensor, and an RPM sensor. Experimental results demonstrate a positive correlation between water flow rate, turbine rotational speed, and generator output voltage. The system begins operating at a minimum flow rate of 35.2 L/s at 56 RPM, producing 0.2 V, while optimal performance is achieved at 45.3 L/s and 516 RPM, generating up to 13.3 V. These results indicate that the proposed prototype is a viable alternative renewable energy source for marine applications.

Time delays and cost overruns remain major problems in building construction projects, particularly in concrete structural works that dominate project duration and cost. This study aims to evaluate the application of re-engineering in concrete structural work methods on the time and cost performance of multi-storey building projects. A quantitative approach using a case study method was employed through comparative analysis between the existing method and alternative methods. The analyzed alternatives include ready-mix concrete with Sika Viscocrete 8007 admixture and semi-system formwork as Alternative I, ready-mix concrete with system formwork as Alternative II, and ready-mix concrete with Sika Viscocrete 8007 admixture combined with system formwork as Alternative III. The results show that all alternatives perform better than the existing method with a duration of 243 days. Alternative I reduced the duration to 208 days with cost efficiency of IDR 55,781,730 or 0.214 percent. Alternative II reduced the duration to 203 days with cost efficiency of IDR 187,553,261 or 0.724 percent. Alternative III achieved the best performance with a duration of 168 days, accelerating 75 days and providing the highest cost efficiency of IDR 243,334,991 or 0.941 percent. The study concludes that re-engineering effectively improves project time and cost performance, with Alternative III as the optimal method.

Submarine pipelines are vital infrastructures in aviation fuel distribution, carrying high risks of operational disruption, safety issues, and environmental pollution. In 2025, the aviation fuel receiving submarine pipeline at Integrated Terminal Ampenan was deformed due to mechanical pulling by MT Anargya I, causing system shutdown. This incident created risks of seawater intrusion, marine pollution, and potential fuel shortages at Lombok International Airport. This study evaluates the effectiveness of applying a double-ended draining method combined with an oil bubble trap as a fast, safe, and sustainable solution for submarine pipeline repair. Using a case study and descriptive-analytical approach based on the Continuous Improvement Program (CIP), the research analyzed quality, cost, delivery, safety, environmental, and workforce aspects. The results showed the method effectively drained aviation fuel without seawater contamination, prevented marine spills, maintained fuel quality within specifications, and completed repairs before critical stock levels were reached. Additionally, it provided significant cost savings compared to emergency supply operations and achieved zero safety incidents and environmental pollution. The integration of double-ended draining and oil bubble trap proved to be an effective, adaptive innovation with strong potential for replication and standardization in other aviation fuel submarine pipeline systems.

Indonesia is in an earthquake-prone region, therefore, designing building constructions that can withstand seismic loads is crucial in civil engineering. Reinforced concrete shear walls are one of the vertical structural fundamentals that are effectively used in multi-story buildings to withstand lateral forces due to earthquake and wind loads. Structures that use shear walls can increase stiffness and reduce horizontal deviations (deflections) of buildings, which contribute to the stability and safety of structures based on the SNI 1726:2019 standard. This study aims to analyze the effect of shear wall configurations on deviation and torsion requirements in multi-story building planning. The study object is a 6-story reinforced concrete building model in a specific earthquake zone. The design and modeling were performed using structural analysis software, taking into account columns, beams, slabs, and shear walls. The analysis results show that optimal placement of shear walls at the building edges significantly reduces horizontal drift, torsion, and shear forces, and improves the structural performance level compared to structures without shear walls or those with less effective placement. Structures with shear walls have optimal stiffness in absorbing lateral forces, making them more resistant to damage from the planned earthquake.

Healthcare is an integral part of health development in Indonesia, which aims to optimally improve public health. Hospitals, as healthcare facilities, are required to provide quality, safe, and patient-centered services. Service quality is a key indicator of service success, as good service impacts patient satisfaction. One of the most important services in hospitals is obstetrics, which directly relates to maternal and infant health, making patient satisfaction a crucial aspect. Midwives, as professional healthcare workers, play a strategic role in providing comprehensive, sustainable, and patient-centered midwifery care. This study aims to analyze the influence of healthcare facilities and midwife performance on patient satisfaction through service quality. The method used is a quantitative study with an analytical approach and a cross-sectional design. The results of the multiple linear regression test indicate that midwife performance has a more dominant influence on service quality than healthcare facilities. Meanwhile, regarding patient satisfaction, service quality is the most dominant factor, followed by midwife performance and healthcare facilities. The conclusion of this study is that service quality reflects the overall patient experience and is a key factor in improving patient satisfaction.

Fertilization serves as a fundamental component of crop cultivation, wherein the application of mineral nutrients is crucial for plant nourishment, facilitating various physiological processes critical for growth and development. The objective of this study is to establish an optimal recommended dosage that enhances cabbage growth and yield. The experimental design employed in this study was a randomized block design with four replications. The treatments consist of seven fertilization levels, as follows: No fertilization with nitrogen (N), phosphorus (P), or potassium (K) (P0), reference fertilization (P1), 0.5 dose of unbalanced compound fertilizers (P2), 0.75 dose of unbalanced compound fertilizers (P3), 1.0 dose of unbalanced compound fertilizers (P4), 1.25 dose of unbalanced compound fertilizers (P5), and 1.5 dose of unbalanced compound fertilizers (P6). The experiment indicated that the application of unbalanced compound fertilizers enhances cabbage plant growth, as evidenced by increased plant height and leaf number compared to the control treatment. Additionally, fertilization improves yield components relative to untreated plants. The application of 0.5 doses of unbalanced compound fertilizers proves agronomically effective, yielding the highest relative agronomic effectiveness at 169%, meaning a 1.69-fold increase in yield. Economically, the same dosage is also highly beneficial, achieving the highest R/C ratio of 2.35 and generating a profit of Rp. 14,365,150. The study results confirm that unbalanced compound fertilizers were both agronomically effective and economically advantageous. The recommended dosage for cabbage cultivation is 134 kg/ha, applied in two stages: 50% at 1 WAT (weeks after transplanting) and the remaining 50% at 4 WAT.

The food and beverage industry in Indonesia is growing rapidly through digital marketing, particularly through the role of influencers in influencing consumer preferences and purchase intentions. Several influencers are no longer merely collaborating with brands, but are also becoming business owners by leveraging their personal branding and follower base. However, when promoting their own products, the effectiveness of these strategies on purchase intentions is not always consistent. This study aims to examine the influence of the Theory of Planned Behaviour on purchase intention and analyse the role of Parasocial Relationship through influencer authenticity and influencer trustworthiness in regional cuisine at RM Padang Payakumbuah. The research uses a quantitative approach with data from 182 respondents in the Special Region of Yogyakarta, analysed using PLS-SEM. The results show that attitude and influencer authenticity do not have a significant effect on purchase intention, while subjective norm and perceived behavioural control have a significant effect. Furthermore, influencer trustworthiness strengthens the relationship between perceived behavioural control and purchase intention. These findings emphasise the importance of social recommendations, ease of purchase access, and building trust towards influencers.

This study aims to analyze the influence of workforce agility, job satisfaction, and job engagement on employee adaptive performance at PT. MMT Buana Logistik. The dynamic logistics industry requires employees who have high adaptability to technological changes and operational demands. This type of research is quantitative causality with an explanatory approach. The population in this study were all employees of PT. MMT Buana Logistik, totaling 49 people, with the sampling technique used saturated sampling (census). Data were collected through questionnaires with a 5-point Likert scale. Data analysis techniques used included instrument testing (validity and reliability), testing of classical assumptions (normality, multicollinearity, and heteroscedasticity), and multiple linear regression analysis. Hypothesis testing was carried out through t-tests (partial), F-tests (simultaneous) and coefficient of determination (R2). The results showed that workforce agility, job satisfaction, and job engagement partially and simultaneously have a positive and significant influence on employee adaptive performance. These findings imply the importance of managing work flexibility, fulfilling employee satisfaction, and increasing work engagement to build adaptive human resources to support company competitiveness in the logistics industry.  

This study investigates the impact of TikTok Live, viral content, and Fear of Missing Out (FOMO) on the purchasing decisions of Gen Z consumers in Jombang City for food and drink products. Social media, particularly TikTok, has rapidly expanded and functions as a potent digital marketing instrument. It influences consumer behavior through live broadcasting and the dissemination of viral content. The objective is to examine the influence of these three factors on purchasing decisions. This study employs a quantitative methodology. The data was obtained from surveys administered to 60 Gen Z participants who purchased food or beverages following exposure to TikTok advertising. Samples were selected by purposive sampling. Data were examined using multiple linear regression with SPSS software. Findings indicate that TikTok Live exerts a favorable and substantial impact on purchasing decisions. Viral material exerts no substantial impact. FOMO exerts a detrimental and substantial impact. The results indicate that TikTok live streaming effectively enhances consumer purchases, especially within the food industry.  

Investment decisions in pharmaceutical manufacturing companies listed on the Indonesia Stock Exchange (IDX) are influenced by fundamental analysis and stock price fluctuations. Stock prices reflect market perceptions shaped by profitability, liquidity, and capital structure. This study examines the effects of Return on Assets (ROA), Current Ratio (CR), and Debt-to-Equity Ratio (DER) on stock prices, both partially and simultaneously. Using a quantitative approach, the study analyzes secondary data from audited financial statements and stock prices of 12 pharmaceutical companies during 2022–2024, totaling 36 observations. Panel data regression with EViews 12 is applied. Results show that ROA and DER have positive and significant effects on stock prices, while CR has a negative but insignificant effect. Simultaneously, all three variables significantly influence stock prices, with an adjusted R² of 73%, indicating strong explanatory power. Profitability (ROA) is the most influential factor, followed by capital structure (DER), while liquidity (CR) shows no significant impact.

This study aims to analyze the influence of product quality, brand image, and promotion on purchasing decisions for Nivea products in Batam City. The population in this study were consumers who use Nivea products in the Lubuk Baja District area with an unknown population size. The sampling technique used the Jacob Cohen formula, resulting in a sample size of 204 respondents using a purposive sampling method. The research data were analyzed using multiple linear regression methods supported by data quality testing, classical assumption tests, influence tests, and hypothesis tests. The results of the regression analysis showed that product quality had a 31.5% influence on purchasing decisions, brand image had a 62.7% influence, and promotion had a 27.4% influence on purchasing decisions. Furthermore, the results of the coefficient of determination test showed that the variables of product quality, brand image, and promotion were able to explain 83.2% of the variation in purchasing decisions. In addition, the results of the T test and F test proved that the three independent variables had a positive and significant influence, both partially and simultaneously, on purchasing decisions for Nivea products in Batam City.

This research investigates how celebrity endorsements, customer reviews, and pricing affect consumers’ intention to purchase Scarlett Whitening products. Amid intense competition in the skincare industry, firms are required to focus not only on product features but also on psychological and perceptual aspects that influence consumer behavior. Celebrity endorsers contribute to strengthening brand trust, customer reviews offer insight based on user experiences, while price reflects consumers’ perceived value of the product. This study adopts a quantitative explanatory design, with data obtained from 204 respondents through structured questionnaires using a five-point Likert scale. The collected data were analyzed using multiple linear regression with SPSS version 26. The findings indicate that celebrity endorsers, customer reviews, and price have both simultaneous and individual positive and significant impacts on purchase intention. An adjusted R-square value of 0.274 suggests that these variables account for 27.4% of the variation in consumers’ purchase intention. Overall, the results highlight that appropriate endorsements, trustworthy reviews, and competitive pricing collectively enhance consumers’ intention to purchase Scarlett Whitening products

The purpose of this study is to analyze and evaluate the effectiveness of digital marketing strategies implemented by Micro, Small, and Medium Enterprises (MSMEs), particularly those engaged in the culinary sector, within the Pasar Raya MMTC (Medan Metropolitan Trade Center) area in facing digital era competition. The research method employed is descriptive qualitative with a case study approach. Data collection involved in-depth interviews with MSME owners, observation of digital promotional activities (Social Media and Marketplaces), and content analysis. The results indicate that the most effective and commonly used digital strategies include: (1) Marketplace Optimization (focusing on discount and flash sale features), (2) Social Media Marketing Utilization (Instagram and TikTok for visual/video content), and (3) Collaboration with Local Micro-Influencers or food vloggers. The effectiveness of these strategies is measured by the increase in sales volume (an average of 20-30% after digital adoption) and improved brand visibility. The main obstacles encountered by MMTC MSMEs are the lack of consistency in content creation, limited funds for paid advertising, and insufficient understanding of digital data analytics. This study concludes that digital adaptation is essential, but it must be supported by improving digital literacy and providing targeted assistance focused on analyzing the return on investment (ROI) of digital marketing activities for sustainable growth.

This study aims to evaluate the application of environmental management accounting in the management of work programs at the Bangkalan Regency Environmental Agency. The research is motivated by increasing environmental problems, particularly waste volume and limited management facilities, while environmental management accounting has the potential to assist agencies in identifying, measuring, and reporting environmental costs as a basis for decision-making and public accountability. This study used a qualitative method with a case study approach at the Bangkalan Regency Environmental Agency. Data were collected through interviews, observations, and documentation studies. The results show that the Environmental Agency has implemented environmental management accounting, but its recording is still manual and does not separate environmental costs from general operational costs. This condition complicates cost evaluation and program impact assessment. Work program management has been structured and evaluated regularly, but performance measurement still focuses on output, not long-term environmental impact. Information transparency is also still limited to activity publications. Overall, the application of environmental accounting is at a basic stage and has not been fully integrated into the work program planning and evaluation process. The findings of this study provide theoretical and practical implications in the form of strengthening understanding of the role of environmental management accounting and the need to improve the work program recording and evaluation system at the Bangkalan Regency Environmental Agency.

Heart failure is a clinical syndrome characterized by shortness of breath and fatigue resulting from structural or functional abnormalities of the heart.  Acute Decompensated Heart Failure (ADHF), also known as decompensated heart failure, is a condition of worsening chronic heart failure that can occur acutely, subacutely, or insidiously, with symptoms progressively worsening over several days or weeks. A 1-year-old male patient presented to the Dermatology Clinic at Cut Meutia General Hospital with the chief complaint of A 60-year-old female patient was brought to the Cut Meutia Emergency Department with the complaint of shortness of breath that had worsened 1 day prior to admission; the shortness of breath worsened during light activity and when the patient was lying down. She also complained of swelling in both legs for one week prior to admission, which had progressively worsened. On examination, skin turgor was slow to return in the left and right lower extremities; palpation of the neck revealed jugular vein distension. Inspection showed a normal chest contour; auscultation of the lungs revealed rhonchi. Cardiac percussion revealed enlargement of the upper, left, and right borders of the heart, as well as the cardiac border at the level of the waist. Auscultation revealed a murmur at the fourth intercostal space on the left side. Examination of the lower extremities revealed pitting edema on both the left and right sides.  Supportive X-ray examination revealed severe cardiomegaly. An ECG revealed sinus rhythm, an irregular rate of 80 beats per minute, LAD axis, P wave not identifiable, PR interval 0.20 seconds, QRS complex 0.6 seconds, inverted T waves in I and AVL, LVH (+), RVH (-), PVCs, AF, and lateral ischemia. Echocardiography revealed severe aortic stenosis due to RHD and an LVEF of 21%. The patient has been prescribed furosemide, warfarin, bisoprolol, and spironolactone.

Chronic Coronary Syndrome (CCS) is a contemporary term that replaces stable coronary artery disease (CAD) and describes a spectrum of clinical conditions resulting from chronic abnormalities of the coronary arteries. This condition is characterized by a mismatch between myocardial oxygen supply and demand that is transient and reversible, commonly presenting as stable angina pectoris. CCS contributes significantly to global cardiovascular morbidity and mortality, including in Indonesia. The underlying pathophysiology primarily involves atherosclerosis and microvascular dysfunction leading to myocardial ischemia. Diagnosis is established through comprehensive history taking, physical examination, and both invasive and non-invasive investigations such as electrocardiography, stress testing, and cardiac imaging. Risk stratification using pre-test probability plays a crucial role in guiding further diagnostic evaluation. The management of CCS aims to relieve symptoms and prevent adverse cardiovascular events through pharmacological and non-pharmacological approaches, as well as revascularization when indicated. Pharmacological therapy includes antianginal agents, antiplatelet drugs, and lipid-lowering agents, while lifestyle modifications such as smoking cessation, healthy diet, and regular physical activity are essential in preventing disease progression. With accurate diagnosis and comprehensive management, the morbidity and mortality associated with CCS can be reduced.

Every nation, including Indonesia, has a problem with population growth. A high birth rate is the consequence of an expanding population, which causes childhood malnutrition. Family planning is an attempt to regulate the quantity and spacing of children. The AKDR is the recommended method of contraception. Indonesia's AKDR coverage is still inadequate. Because the husband is the head of the household, his support is crucial since he has the power to decide whether or not to use contraception. At the Ibu Community Health Center, this research aims to explore the connection between husband support and a lack of interest in using IUD contraception among couples of reproductive age. With 25 individuals in the study group, a cross-sectional research design with total sampling methodologies was employed. A survey was used as the research method, and the data was subjected to Chi-Square analysis with SPSS. The chi-square statistical test produced a P-value (asymp. Sig 2-tailed) of 0.000 < 0.05, indicating that there is a correlation between husband support and a low desire among couples of reproductive age to utilize IUD contraception. Consequently, since H0 was disproved and H1 was proven, it can be inferred that there is a link between husband support and couples of childbearing age having a low interest in using IUD contraception.

Cholelithiasis is the formation of hardened bile deposits within the gallbladder due to an imbalance in the chemical composition of bile, which can cause symptoms ranging from abdominal pain to serious complications such as cholecystitis, biliary obstruction, and gallbladder infection. This study aimed to determine the relationship between patient characteristics and the length of hospital stay in cholelithiasis patients at Cut Meutia General Hospital. This study used an analytical observational design with a cross-sectional approach and a retrospective study, employing a total sampling technique with 50 patients. The results showed that most patients were female (52.0%), with the largest age group being late elderly (28.0%). The most common surgical technique was laparoscopic cholecystectomy (42.0%), and the majority of patients received surgical management (60.0%). Bivariate analysis using the Chi-Square test showed significant relationships between age (p=0.000), gender (p=0.044), surgical technique (p=0.029), and management (p=0.045) with the length of hospital stay in cholelithiasis patients. The conclusion of this study is that there is a relationship between patient characteristics and the length of hospital stay in cholelithiasis patients.

Bacterial infections are diseases that can be transmitted by bacteria from sufferers to others, either directly or indirectly. Cases of bacterial infections are more common among children. The use of antibiotics is needed to treat life-threatening conditions caused by bacteria by killing bacteria or making it difficult for bacteria to grow and reproduce. Antibiotics are a type of drug given to prevent bacterial infections, or are drugs given to high-risk patients. This research method is a descriptive study by collecting medical record data to find out the description of bacterial infections and the use of antibiotics in pediatric inpatients at RSU Cut Meutia Aceh Utara in 2022. This research technique used purposive sampling with a sample size of 183 samples. The results of this study showed that 183 children suffered from bacterial infections and received injection antibiotic therapy, the majority were boys, namely 106 children (57%), the age group with the most number of sufferers, namely aged 0‒5 years, totaling 76 children (41%), the percentage of bacterial infections most commonly found in pediatric inpatient wards at RSU Cut Meutia Aceh Utara in 2022, namely typhoid fever as much as 33%, the class of antibiotics most commonly used at RSU Cut Meutia is cephalosporins (93%).