Abstract:The growing emphasis on sustainable urban mobility has positioned electric vehicles (EVs) as a strategic component of transport transformation, particularly in developing cities with constrained infrastructure systems. One…
ne of the key challenges in supporting EV adoption is the provision of accessible charging infrastructure, which is closely related to user perception of acceptable service distance. This study aims to determine the optimal service distance of Electric Vehicle Charging Stations (EVCS) based on user preferences in Pekanbaru City, Indonesia, and to explore its implications for spatial planning. A quantitative approach was employed using a questionnaire survey of 51 respondents distributed across 15 administrative districts. All respondents were non-EV users, representing potential adopters in the early stage of transition. The survey captured preferred EVCS distance using interval-based categories, along with respondents’ awareness and intention toward EV adoption. The results indicate that the dominant preferred distance falls within the 2–4 km range, with an estimated mean of 3.08 km and a standard deviation of 1.98 km, resulting in an effective range of approximately 1–5 km. Considering urban road network constraints and detour factors, this range is further adjusted to 3–6 km to reflect more realistic travel conditions. These findings suggest that a relatively dense and accessible charging network is required to reduce range anxiety and support EV adoption. From a spatial planning perspective, a 4 km service threshold is proposed as a practical reference for EVCS deployment, representing the central tendency of user preferences within the adjusted range. This study highlights the importance of integrating user-based spatial parameters into infrastructure planning and contributes to the literature by emphasizing the role of perceived accessibility in shaping EV infrastructure demand in developing urban contexts.
Abstract:This study aims to develop a technically compliant and economically feasible design for a Restricted Security Area (RSA) perimeter fence surrounding Substation 7, the Chiller facility, and the Ground Water Tank (GWT) at…
Kertajati International Airport. These facilities constitute critical operational infrastructure supporting electricity distribution, terminal cooling systems, and water supply, including fire suppression reserves. Field observations identified the absence of a regulation-compliant perimeter protection system, exposing the utility cluster to unauthorized access and operational risk. The research employed a quantitative descriptive–analytical approach integrating field measurement, engineering design modeling, volume computation, and cost estimation based on the 2024 Majalengka Regional Standard Unit Price. Technical evaluation referred to national aviation security regulations and ICAO Annex 17 principles. A BRC (British Reinforced Concrete) fence system with a total height of 3.20 meters (2.40 m fence body and 0.80 m concertina wire) was proposed. The structural configuration includes reinforced concrete isolated footings, tie beams (sloof), and a bottom plinth beam to ensure lateral stability and anti-climb resistance. The total perimeter length of 313.74 meters ensures complete enclosure of the critical facilities. The estimated total project cost amounts to IDR 509,553,000.00, including VAT. The results demonstrate that the proposed design is structurally reliable, regulation-compliant, and economically justified within a risk mitigation framework. The study contributes a replicable engineering and financial planning model for strengthening airport critical infrastructure protection and enhancing long-term operational resilience.
Abstract:This study investigates the tensile uplift capacity of screw piles in clay soil as an alternative anchoring system for slope stabilization in cohesive ground conditions. The research aims to address the limited availability…
ity of empirical field data on screw-pile behavior under repeated loading and to evaluate the agreement between theoretical predictions and actual in situ responses. The methodology employs an experimental approach through in situ testing with screw-pile diameters of 10 cm, 15 cm, and 20 cm, and embedment depths ranging from 0.6 m to 1.0 m. The tests were conducted under both static and repeated tensile loading using a hydraulic jack system, accompanied by vertical deformation measurements to establish load–displacement curves. Theoretical capacity was calculated using a limit equilibrium approach for comparison with experimental results. The findings reveal a nonlinear load–displacement response, characterized by initial stiffness followed by progressive deformation into the post-yield stage. At a maximum load of 2.858 tons, deformation increased with diameter, from 5.10 cm (10 cm) to 8.49 cm (20 cm). Under repeated loading, failure occurred at a lower load of approximately 1.6 tons with a maximum deformation of 1.648 cm, indicating potential capacity degradation due to cyclic loading. The comparison between theoretical and field results shows significant deviations, with analytical predictions generally underestimating the in situ capacity. This highlights the limitations of simplified models that do not fully account for shaft adhesion, installation disturbance, soil heterogeneity, pore-water pressure effects, and cyclic degradation. Overall, this study contributes valuable field pull-out test data for screw piles in clay under repeated loading, emphasizing the need for design calibration based on full-scale testing for slope stabilization applications. The results also suggest opportunities for further research involving long-term monitoring and advanced modeling of cyclic degradation.
Abstract:This study examines the influence of social media marketing and brand image on purchase intention, with consumer boycott participation incorporated as a moderating variable, using Rosé All Day Cosmetics as the empirical…
context. Grounded in the Stimulus–Organism–Response (S-O-R) framework, a quantitative approach was employed by collecting survey data from 385 consumers in Jabodetabek and Bandung City areas, which were analyzed using PLS-SEM. The results reveal that both social media marketing and brand image have positive and significant effects on purchase intention. However, boycott participation does not moderate the relationship between social media marketing and purchase intention, while it exerts a significant negative moderating effect on the relationship between brand image and purchase intention. These findings suggest that although digital marketing and brand image remain key drivers of consumer purchase intention, moral and social considerations reflected in boycott participation can weaken the effectiveness of brand image in influencing consumer decisions. This study contributes to the literature by highlighting the contextual role of consumer boycotting in shaping marketing effectiveness within the digital beauty industry in emerging markets.
Abstract:Previous studies have shown that the Critical Path Method (CPM) and the Project Evaluation and Review Technique (PERT) are effective in optimizing project completion time. Based on observations, the construction of a single…
ingle housing unit typically requires 64 working days. This study aims to obtain an optimal scheduling result by applying CPM and PERT to the construction project of a subsidized house type-36 in Perumahan Malimbukan Permai III, North Minahasa Regency. The analysis results indicate that the project’s critical path consists of A – B – C – D – E – F – H – K – L – M – N – P – Q. Using the CPM method, the required completion time is 55 days, while the PERT method yields an estimated 55.68 days. With a deadline of 60 days, the probability of completing the project is 99.94%. This study highlights the importance of monitoring the critical path and utilizing time estimation in project planning to prevent delays and unforeseen obstacles.
Abstract:Background: Diabetes mellitus is a chronic metabolic disorder caused by high levels of physical activity, high sugar consumption, reduced insulin production, and impaired insulin response or other hormones that inhibit insulin…
nsulin action. Based on IDF data, the prevalence of diabetes mellitus in Indonesia in 2024 is estimated to reach 11.3% of the population (approximately 20.4 million people). In addition, the Ministry of Health shows that in 2023, cases of diabetes mellitus will reach 11.7% and are predicted to continue to increase. High blood glucose levels, if left untreated, can cause various complications such as heart disease, stroke, nerve damage, and wound infections that can lead to amputation. One non-pharmacological treatment that can be given is by giving boiled moringa leaves, because moringa leaves contain antioxidants such as flavonoids, vitamins A, C, and E which can lower blood glucose levels. Objective: To determine the effect of Moringa leaf decoction on reducing blood glucose levels in diabetes mellitus patients in Sikampuh Village, Kroya District, Cilacap Regency. Method: The method used was a qualitative descriptive method with a case study approach. Results: Based on the research results, administering Moringa leaf decoction to blood glucose levels in diabetes mellitus patients for 7 days was proven to be effective in lowering blood glucose levels. Conclusion: Administering Moringa leaf decoction to diabetes mellitus patients for 7 days can lower blood glucose levels.
Abstract:Mental disorders are a health problem that remains a major challenge in Indonesia. Auditory hallucinations are a sensory perception disorder that often occurs in patients with schizophrenia. Patients have difficulty distinguishing…
inguishing between real and unreal stimuli, which can lead to risky behaviors such as harming themselves or others. One non-pharmacological intervention that can be applied to address hallucinations is the rebuke technique, which is a firm and directed verbal action to reject perceived hallucinations. The purpose of this study is to describe nursing care for patients with sensory perception disorders: auditory hallucinations with the application of the rebuke technique as the main intervention. This study uses a descriptive case study approach on one patient in the Flamboyan Ward of Dr. RM. Soedjarwadi Klaten Mental Hospital. Data collection was carried out through interviews, observations, and documentation studies, then analyzed based on the stages of the nursing process. The results showed that after the rebuke technique intervention was consistently implemented for three days, there was a decrease in the frequency of hallucinations from 3-4 times to 1-2 times a day. The patient also showed an increase in the ability to recognize and reject hallucinations independently. Furthermore, the patient began to engage in social interactions and participate more actively in daily activities. The conclusion is that the reprimand technique has proven effective as a nursing intervention in addressing auditory hallucinations. This intervention is simple, easy to implement, and can improve the patient's coping skills in dealing with hallucinatory symptoms.
Abstract:Obesity is a condition of abnormal or excessive fat accumulation which can be a risk factor for dyslipidemia. Uncontrolled dyslipidemia can directly cause endothelial dysfunction by increasing the production of free radicals,…
cals, causing Low Density Lipoprotein (LDL) oxidation and stimulating the release of inflammatory factors that can cause inflammation. Neutrophils and macrophages are the first leucocytes to appear in the early response to inflammation, so the neutrophil-lymphocyte ratio can be useful for evaluating the prognosis of inflammation as an early detector and as a marker of inflammation that can be detected simply and efficiently. This study aims to determine the correlation between Neutrophil-Lymphocyte Ratio (NLR) and Lipid Profile in adult patients with obesity in Prodia Tangerang Clinical laboratory. This study is an analytical study with a cross-sectional approach and used purposive sampling technique. The research sample data was taken from secondary data from patient medical records. The p-value obtained using Rank Spearman correlation from the comparation of neutrophil-lymphocyte ratio with each lipid profile value is total cholesterol (p=0.003), LDL cholesterol (p=0.013), High Density Lipoprotein (HDL) cholesterol (p=0.375) and tryglicerides (p=0.316). This study found a relationship between the neutrophil-lymphocyte ratio with total cholesterol dan LDL cholesterol, but there was no relationship between the neutrophil-lymphocyte ratio with HDL cholesterol and tryglicerides in obese adult patient in Prodia Tangerang Clinical Laboratory.
Abstract:Exposure to X-ray radiation in conventional radiology procedures can pose a health risk, especially for accompanying caregivers of pediatric patients who only bear the risk without gaining any benefit. This study aims to…
determine the estimated equivalent dose received by accompanying caregivers of pediatric patients and the safest points during conventional radiology examinations. The method used in this research is a field survey, involving the measurement of equivalent radiation doses inside and outside the examination room using a personal dosimeter, as well as measuring the radiation dose rate at 6 points using a surveymeter. The data was processed to obtain the highest and lowest values, as well as the percentage of equivalent dose obtained compared to the established Dose Limit Value (DLV). The results showed that the highest radiation dose received by accompanying caregivers inside the examination room reached 13,46 µSv, with a percentage of 0,27% relative to the DLV, while the lowest dose recorded was 1,12 µSv, with a percentage of 0,0224% relative to the DLV. Analysis of the radiation dose rate distribution revealed that the greater the distance of the measurement point from the radiation source (tube), the smaller the dose received. In conclusion, the radiation dose received by accompanying caregivers is still below the Dose Limit Value (DLV) for caregivers, which is 5.000 µSv. However, to minimize stochastic effects, the implementation of additional protective measures, such as the use of lead aprons and selecting safer locations within the examination room, is highly recommended. These findings are expected to serve as a guide in enhancing the safety of accompanying caregivers of pediatric patients in conventional radiology units.
Abstract:This study examines the impact of four key marketing variables product quality, price, persuasive communication, and incentives on brand image and purchasing decisions among medical practitioners in Cilegon, Indonesia. Drawing…
rawing on a sample of 225 physicians, dentists, and pharmacists, data were collected via an online Likert‐scale questionnaire and analyzed using confirmatory factor analysis and structural equation modeling (SEM). Results indicate that product quality and incentives exert statistically significant positive effects on brand image (β = 0.284, p = 0.011; β = 0.291, p = 0.003, respectively), while price and persuasive communication do not achieve significance. Furthermore, incentives also demonstrate a significant positive influence on purchase decisions (β = 0.206, p = 0.047), whereas other independent variables, including brand image, fail to show a direct effect. Model fit indices (CMIN/DF = 1.122; GFI = 0.90; RMSEA = 0.016; p = 0.061) confirm an overall good fit. These findings underscore the critical role of maintaining high product standards and ethical incentive programs in strengthening brand perception and stimulating purchase behavior in a competitive pharmaceutical landscape. Theoretical contributions include the integration of marketing, consumer behavior, and brand management theories within a single SEM framework. Practically, pharmaceutical firms operating in emerging markets should prioritize consistent quality assurance and transparent incentive mechanisms to enhance both brand equity and sales performance.