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The problem of urban flooding is a growing issue due to high population density, increasing volumes of plastic waste, and the reduction of water absorption areas. The use of conventional paving blocks, which are impermeable, further exacerbates flooding conditions because they do not allow water to infiltrate into the soil. This study aims to develop an innovative plastic waste-based paving block incorporating rice straw and sugarcane bagasse, along with the integration of phytoremediation concepts as a solution for urban flood mitigation. The method employed was an experimental approach involving the following stages: material preparation, plastic incineration, material mixing, molding, and testing of water absorption capacity and compressive strength. The results showed that paving blocks with a combination of plastic waste, rice straw, and sugarcane bagasse had the highest water absorption rate of 34% and compressive strength of 21 kg/cm², meeting SNI standards. The addition of natural materials containing silica was proven to enhance the material’s porosity and strength. Additionally, the application of phytoremediation using water hyacinth has the potential to improve the quality of water seeping into the soil. Thus, this phytoremediation-based paving block innovation can serve as an effective alternative solution to reduce flood risks while supporting sustainable waste management and environmental stewardship.

Vegetables are food commodities widely consumed by the public due to their high nutritional content. Chili (Capsicum annuum L.), green beans (Phaseolus vulgaris L.), and Chinese cabbage (Brassica pekinensia L.) are among the vegetables that can be processed into various delicious dishes or consumed fresh as raw vegetables. To obtain healthy and high-quality vegetable crops, pesticides are commonly used to control pests that may damage the plants. One of the widely used pesticides is chlorpyrifos, which can leave residues that may pose both acute and chronic health risks. Therefore, it is necessary to analyze the levels of chlorpyrifos pesticide residues in vegetables. The residue levels were determined using a UV-Vis spectrophotometer at a wavelength of 230 nm with dichloromethane as the solvent, while qualitative analysis was performed using HPLC by comparing the retention times of standard solutions and vegetable samples. In this study, washing treatments were applied to the vegetables using dichloromethane, distilled water, well water, and tap water (PDAM) to evaluate the effect of washing on pesticide residue levels. The concentrations of pesticide residues in unwashed vegetables were chili (2.6680 ± 0.0214 mg/kg), green beans (2.4658 ± 0.0193 mg/kg), and Chinese cabbage (2.7950 ± 0.0379 mg/kg). The washing process was carried out three times for each solvent. After three washings using dichloromethane and distilled water, pesticide residues were no longer detected, whereas washing with tap water (PDAM) and well water still left residues, although at levels much lower than the Maximum Residue Limit (MRL). The health risk assessment showed that the aHQ and cHQ values were < 1, indicating that consumption within the recommended limits of these samples does not pose health risks, either in the short term or long term. This study provides important information that repeated washing is necessary to effectively reduce pesticide residue levels in vegetables before consumption.  

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.

Modern infrastructure development often involves the use of mass concrete in large structural elements such as pile caps and foundations. However, massive concrete volumes trigger a significant temperature increase due to the heat of hydration that is difficult to dissipate, posing a risk of thermal stress and structural cracking. This study aims to analyze the temperature rise behavior of mass concrete and evaluate the effectiveness of combining chilled water and fly ash substitution in minimizing these thermal cracking risks.The research method employs a quantitative approach through laboratory testing at PT Adhimix RMC Plant Kaligawe. Specimen blocks measuring 40 x 40 x 100 cm were divided into three variations: normal concrete (BN), concrete with chilled water and 15% fly ash (BAF), and concrete with 25% fly ash (BF). Temperature was monitored using thermocouples at the core and surface for 14 days, then validated using the Portland Cement Association (PCA) formula. The results indicate that the integration of chilled water with 15% fly ash and the use of 25% fly ash significantly controlled extreme temperature surges at the 5th hour. The combination of chilled water and 15% fly ash produced the lowest core temperature of 37.3°C, far below the control concrete which reached 62.4°C. This proves that the combination of precooling methods and fly ash substitution is effective in reducing the heat of hydration during the early hardening period, although the use of 25% fly ash was found to be more stable in maintaining mass concrete temperature.

Hypertension is a major public health concern with a high prevalence and a significant risk of complications if left uncontrolled. Effective management requires not only pharmacological treatment but also non-pharmacological approaches and active family involvement. One potential non-pharmacological therapy is the use of celery (Apium graveolens), which is believed to lower blood pressure. This study aimed to evaluate the effectiveness of family education combined with celery decoction administration in reducing blood pressure among patients with hypertension. A descriptive case study design was employed using a family nursing care approach over three home visits, each lasting 30–45 minutes. The intervention included health education on hypertension and a demonstration of how to prepare and administer celery decoction, which was consumed twice daily. Data were collected through interviews, observation, and blood pressure measurements. The results showed a reduction in blood pressure from 159/90 mmHg to 130/80 mmHg, along with a decrease in symptoms such as headaches and dizziness. In addition, there was an improvement in family knowledge, caregiving skills, and the ability to modify the home environment. In conclusion, family-based education combined with the administration of celery decoction appears to be effective in reducing blood pressure and enhancing the family’s role in managing hypertension.

This study aims to analyze the visual appeal of anime characters through a case study of cosplayers in Surabaya. The focus of this research is to identify the factors that motivate cosplayers to idolize anime characters and to describe the visual elements that contribute to the formation of such appeal. This study employs a qualitative approach using observation, interviews, documentation, and questionnaire distribution to 30 active cosplayers aged 18–20 who are members of cosplay communities in Surabaya. The collected data were analyzed using Charles Sanders Peirce’s semiotic approach, which emphasizes the relationship between sign, object, and interpretant in the process of visual meaning-making. The results indicate that the appeal of anime characters is not solely influenced by visual aspects but also by emotional attachment formed through character representation. Specifically, facial features (66.7%) and body gestures (33.3%) are the dominant factors influencing cosplayers’ preferences, compared to other visual elements such as color, costume, and hair details. The semiotic analysis reveals that visual elements in cosplay function as a system of signs that represent character identity while simultaneously constructing aesthetic, emotional, and narrative meanings for the audience.

Chili (Capsicum annuum L) ) is one of the most important horticultural commodities widely consumed in Indonesia and has high economic value. To maintain productivity and prevent pest attacks, farmers commonly apply chemical pesticides intensively. However, excessive and improper pesticide application can leave harmful residues on the surface and within the tissues of chili fruits. The accumulation of these residues not only poses health risks to consumers but also contributes to environmental pollution, particularly in wastewater generated from chili washing activities. This study aims to reduce pesticide residues of Cherizeb and Emacel in chili washing water using the photolysis methodassisted by a ZnO/zeolite catalyst. Zinc oxide (ZnO) acts as a photocatalyst activated by ultraviolet (UV) light to produce reactive hydroxyl radicals (•OH) capable of decomposing complex organic compounds into simpler compounds such as CO₂ and H₂O. Meanwhile, zeolite is used as a catalyst support due to its large surface area and high adsorption capacity, allowing adsorption and photocatalytic processes to occur simultaneously. The results showed that the photolysis method using the ZnO/zeolite catalyst significantly reduced pesticide residues, with optimum degradation efficiencies of 85.66% for Cherizeb using 0.8 g ZnO/zeolite under UV irradiation for 60 minutes, and 83.97% for Emacel using 0.8 g ZnO/zeolite under UV irradiation for 75 minutes. The samples were characterized using Fourier Transform Infrared Spectroscopy (FTIR) to identify functional groups, indicating the disappearance of specific organic functional groups. Pesticide residues on chili samples were analyzed using UV-Vis spectrophotometry to determine concentrations before and after treatment. X-Ray Diffraction (XRD) analysis confirmed that the crystalline structure of the catalyst remained stable after the photolysis process. Based on these findings, the ZnO/zeolite catalyst is proven to be effective in reducing pesticide residues through photocatalytic degradation and has the potential to be applied as a safe, efficient, and environmentally friendly post-harvest technology to improve the quality of agricultural products.

Indonesia ranks 36th among countries most prone to natural disasters, with 216 earthquakes recorded by BNPB between 2009 and 2019. Aceh is one of the high-risk regions, having experienced major disasters such as floods, earthquakes, and the 2004 tsunami. These conditions highlight the importance of knowledge of basic life support (BLS), which is essential for managing respiratory arrest, cardiac arrest, and airway obstruction in emergency situations. This study aimed to determine the level of basic life support knowledge among health workers at the North Lhoksukon Health Center, Aceh. A descriptive observational method with a survey approach was used to provide a general overview of respondents’ characteristics. The study applied univariate analysis and involved a total sample of 139 health workers. The results showed that most respondents had a good level of knowledge (116 people; 83.5%), followed by sufficient knowledge (13 people; 9.4%) and poor knowledge (10 people; 7.2%). These findings indicate that while the majority of health workers demonstrate good understanding, there is still a need for improvement among those in the sufficient and poor categories. Therefore, it is recommended that institutions provide regular BLS training to maintain and enhance the knowledge of health workers.

Indonesia, as a tropical country, is exposed to high levels of ultraviolet (UV) radiation, increasing the risk of skin damage. Sunscreen is widely used as a protective measure indicated by the Sun Protection Factor (SPF) value. This study aimed to evaluate the effect of active ingredient variations on SPF values and other influencing factors. A literature review with a descriptive-comparative approach was conducted using research articles published between 2021 and 2026 from Google Scholar, PubMed, ScienceDirect, and Elsevier. A total of seven eligible articles were analyzed. The results showed that the type of active ingredients, concentration, combination of ingredients, and dosage form significantly influence SPF values. Natural ingredients generally produce low to moderate SPF values, while combinations of active ingredients result in significantly higher SPF due to synergistic effects. Increasing the concentration of active ingredients also leads to higher SPF values. Additionally, dosage forms such as creams, serums, sunscreen powder and foundations affect sunscreen effectiveness through their film-forming ability on the skin. In conclusion, the combination of active ingredients and higher concentrations provides more optimal protection against UV radiation.

The Indonesian capital market has become a vital pillar of the national economy, providing opportunities for companies to obtain funding while simultaneously providing an investment vehicle for the wider community. In this context, stocks are the most sought-after instrument due to the potential returns they offer. However, stock investment is constantly faced with uncertainty, with fluctuating stock prices often presenting challenges for investors, especially those without a thorough understanding of the company's fundamental performance. An interesting phenomenon, the starting point of this research, is the quite extreme price movements of BIPI shares over the past decade. From 2015 to 2021, BIPI's share price remained stagnant at Rp 50 per share, a condition often referred to by market participants as "gocap" (goat capit). This condition reflects low investor interest in the company's shares, possibly due to high risk perceptions or unconvincing fundamental performance.

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%).

Libraries play a crucial role in broadening the public's knowledge horizons by improving literacy skills. However, the reality at the Samaturu Library in Jambu Malea Village shows that manual management still dominates, leading to various administrative obstacles such as data irregularities, the risk of losing important information, and inefficiencies in tracking daily activities. This condition demands digital transformation to optimize public services at the village level comprehensively and sustainably. This research focuses on the development of a web-based library information system specifically designed to modernize administrative processes to be more systematic, fast, and organized. Built using the PHP programming language and MySQL database, this platform offers an intuitive interface for both staff and members. Its superior features include book data management, membership, activity agendas, announcements, and digitizing the borrowing and return process. Furthermore, the system is capable of automatically generating periodic reports to facilitate library performance evaluation. Based on the results of comprehensive testing using the Black Box Testing method, all system functionality was proven to operate optimally according to the required specifications. Direct user trials also showed very positive responses regarding aspects of ease of navigation and operational time efficiency. The implementation of this system is expected to improve the effectiveness of internal management, accelerate the quality of services to library users, and become a major catalyst in realizing superior digital literacy governance in rural areas

The quality of interaction between physicians and patients plays a crucial role in the healthcare system, as it directly affects patient satisfaction. Ineffective communication by physicians may reduce patient satisfaction and increase the risk of complaints and medical disputes. This study aims to analyze the relationship between doctor–patient communication patterns and patient satisfaction in outpatient services. This research employed a quantitative approach with an observational analytic design using a cross-sectional method. The study population included all outpatient patients, with a sample of 110 respondents selected through accidental sampling. The independent variable was doctor–patient communication, while the dependent variable was patient satisfaction. Data were collected using a questionnaire, and analysis was performed using the Chi-Square test with a 95% confidence level. The results showed that the majority of respondents rated doctor–patient communication as good (80.9%) and reported high levels of satisfaction (75.5%). The analysis revealed that among respondents who experienced good communication, 84.3% reported high satisfaction, whereas the proportion of high satisfaction decreased significantly in the groups with moderate and poor communication. In conclusion, there is a significant relationship between the quality of doctor–patient communication and patient satisfaction in outpatient services, where improvements in communication quality are consistently associated with increased patient satisfaction.

Hypertension is a non-communicable disease often referred to as a silent killer because it generally does not present noticeable symptoms. Several risk factors contribute to the development of hypertension, including high body mass index (BMI) and low levels of physical activity. However, data regarding the association between BMI, physical activity, and hypertension at Pakuan Baru Public Health Center, Jambi City, remain limited. Therefore, this study aimed to determine the relationship between body mass index and physical activity with hypertension among adults at Pakuan Baru Public Health Center, Jambi City. This study employed a quantitative approach with a cross-sectional design. The research was conducted at Pakuan Baru Public Health Center, Jambi City, from November 19 to December 6, 2025. The study population consisted of all adult patients with hypertension at Pakuan Baru Public Health Center, totaling 2,797 individuals. A sample of 93 respondents was selected using an accidental sampling technique. Data were collected using observation sheets through measurements of height and weight to calculate BMI, as well as the Global Physical Activity Questionnaire (GPAQ). Data analysis was performed using univariate and bivariate analyses with the chi-square statistical test. The univariate analysis showed that 27 respondents (29.0%) were classified as severely obese, 42 respondents (45.2%) had a low level of physical activity, and 28 respondents (30.1%) were categorized as having stage 2 hypertension at Pakuan Baru Public Health Center, Jambi City. The bivariate analysis revealed a significant relationship between body mass index and physical activity with blood pressure among patients with hypertension (p = 0.000). It is expected that healthcare providers at Pakuan Baru Public Health Center will continue to provide education regarding the importance of controlling body mass index and engaging in regular physical activity, as these factors contribute to increased blood pressure among patients with hypertension.

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.

This study aims to examine the relationship between family support and depression levels among the elderly in Pejuang Village, Bekasi City, through a descriptive-narrative literature review. The review analyzed relevant scientific articles discussing family support, social support, and depression in older adults. Literature was selected based on the suitability of the elderly population, the presence of family or social support variables, and the measurement of depressive symptoms or depression levels. The analysis compared each article’s objectives, research design, respondent characteristics, instruments, findings, and conclusions. The results indicate that most studies found a relationship between family support or social support and depression among the elderly. Adequate family support, including emotional, instrumental, informational, and appraisal support, helps older adults feel cared for, valued, secure, and better able to adapt to the aging process. Preliminary findings at the Elderly Posyandu in Pejuang Village also show variations in family support and depression levels among elderly participants. Conversely, limited family support may increase loneliness, psychological distress, and depressive symptoms. Therefore, family support functions as a protective factor in reducing depression risk among older adults. Strengthening the involvement of families, health workers, and elderly posyandu cadres is necessary as a promotive and preventive strategy to maintain psychological well-being through education, early detection, and sustainable community-based assistance for vulnerable elderly groups living in community and family environments.

Preeclampsia remains a major contributor to maternal morbidity and mortality, particularly in developing countries such as Indonesia. Early detection and integrated management at the primary healthcare level are essential to prevent disease progression and improve maternal outcomes.  Modifiable risk factors such as maternal obesity, inadequate calcium intake, and poor clinical management contribute significantly to disease progression (WHO, 2021; Zhang et al., 2020). This study aimed to evaluate the effectiveness of an Integrated Maternal Health Model (IMHM) combining risk assessment, nutritional intervention, and clinical management for early prevention and control of preeclampsia in primary healthcare settings. A quasi-experimental cohort study was conducted among 104 pregnant women, consisting of 52 preeclamptic and 52 normotensive participants in community health centers in Medan, Indonesia. Data were collected across four antenatal visits, including blood pressure measurements, proteinuria (dipstick), calcium intake, supplementation adherence, and antihypertensive therapy. Statistical analyses included bivariate and longitudinal tests. The results showed that maternal obesity, history of preeclampsia, and hypertension were significant risk factors. Adequate calcium intake demonstrated a protective effect against preeclampsia (p < 0.05), consistent with recent evidence indicating that calcium supplementation can reduce the risk of preeclampsia by up to 49%. However, calcium supplementation did not significantly influence blood pressure among normotensive pregnant women. Antihypertensive therapy, particularly intensive nifedipine regimens, showed significant differences in blood pressure patterns across visits (p < 0.05). In addition, proteinuria levels significantly decreased over time (p < 0.001), indicating improvement in renal function. In conclusion, the IMHM is effective in improving maternal outcomes through a multi-component approach integrating clinical, nutritional, and monitoring strategies. This model provides a practical and scalable framework for early prevention and management of preeclampsia in primary healthcare settings.

Iced tea is a popular beverage due to its accessibility and affordability. However, poor hygiene and sanitation practices can lead to contamination by pathogenic microorganisms such as Escherichia coli, which can potentially cause foodborne diseases. Sanitation practices, including cleanliness of vendors, equipment, and processing facilities, play a crucial role in ensuring the safety of beverages consumed by the public. The research method used was a quantitative study with an observational analytical design using a cross-sectional approach. Total sampling was used, with 21 iced tea vendors as the sample. The independent variable in this study was sanitation hygiene, while the dependent variable was Escherichia coli bacterial contamination in iced tea. The results of the study conducted on 21 respondents showed that iced tea drink sellers with qualified sanitation hygiene practices with a total of 10 respondents, 8 samples of iced tea drinks were negative for Escherichia Coli and 2 samples of iced tea drinks were positive for Escherichia Coli. While iced tea drink sellers who did not meet the requirements for sanitation hygiene practices were 11 respondents, with 11 samples of iced tea drinks positive for Escherichia Coli bacteria. After being analyzed using the IBM SPSS Statistics 24 Application, a p-value of 0.000 (<0.05) was obtained, so H1 was accepted, it was concluded that there was a relationship between sanitation hygiene and Escherichia Coli bacterial contamination of iced tea drinks. Based on the description above it can be concluded that the low sanitation hygiene practices carried out by iced tea drink sellers can increase the risk of Escherichia Coli bacteria contamination in drinks and will affect the quality and safety of drinks that will be consumed by the public.

This study evaluates how macroeconomic variables such as interest rates, inflation, and exchange rates affect the returns on corporate bonds issued by the banking sector in Indonesia. Corporate bonds are an attractive investment alternative, but their performance is highly influenced by fluctuations in national economic conditions. This study uses secondary data obtained from company financial reports, macroeconomic data, and bond market information over a certain period. Multiple linear regression analysis is applied to assess the extent to which each factor affects bond returns. The analysis results indicate that increases in interest rates and inflation tend to reduce bond returns, while the effect of exchange rates is inconsistent and depends on the economic stability at the time. These findings can serve as important considerations for investors, financial analysts, and policymakers in managing risks and opportunities in the Indonesia banking bondmarket.

This literature study aims to analyze the strategies of local cosmetic brands in providing product variants for different skin types, setting affordable prices for the teenage segment, and minimizing side effect risks to increase purchase intention among beginner users. The method used is qualitative library research with a thematic synthesis approach following systematic literature review procedures. The results indicate that complete product variants enable beginner users to find products suitable for their skin conditions, reducing confusion and increasing confidence. Affordable prices are crucial for the teenage segment with limited budgets, allowing them to try products without excessive financial burden. Minimizing side effect risks through safe formulations, dermatological testing, ingredient transparency, and usage education builds a sense of security essential for beginner users. These three strategies are interconnected and collectively create a foundation of trust that drives purchase intention. Beginner users who feel their needs are understood, products are affordable, and risks are minimal will be more motivated to purchase and have the potential to become long-term loyal customers. This study contributes theoretically to enriching cosmetic marketing literature with a teenage and beginner user segmentation perspective and practically provides foundations for local brands in designing products, pricing strategies, and safety communications targeting this segment.