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Diesel engines are widely used in the transportation and industrial sectors due to their high thermal efficiency and good operational durability. However, increased fuel consumption due to inefficiency of the injection system remains a common problem. Injector characteristics, particularly nozzle diameter and injection pressure, are important factors that affect the quality of fuel atomization, air-fuel mixing, and combustion efficiency. An inappropriate combination of parameters can cause suboptimal combustion and increase fuel consumption. This study aims to analyze the effect of variations in nozzle diameter and injection pressure on fuel consumption efficiency in diesel engines. The method used is an experiment with variations in nozzle diameter of 0.150 mm, 0.152 mm, and 0.154 mm and injection pressures of 400 bar, 420 bar, and 440 bar. Tests were conducted at engine speeds of 500 rpm, 1000 rpm, and 1500 rpm with a fuel consumption measurement time of one minute for each parameter combination. Fuel consumption was measured using the volumetric method and analyzed through the fuel volumetric flow rate, fuel mass flow rate, Brake Power (BP), and Brake Specific Fuel Consumption (BSFC). The results showed that the combination of a nozzle diameter of 0.150 mm and an injection pressure of 400 bar produced the lowest BSFC value, thus providing the best fuel consumption efficiency. Meanwhile, the combination of a nozzle diameter of 0.152 mm and an injection pressure of 420 bar showed the closest condition to optimal because it was able to provide a balance between atomization quality and the amount of fuel injected, resulting in efficient and stable combustion. Thus, the efficiency of a diesel engine is influenced by the balance of nozzle size and injection pressure, not solely by the lowest fuel consumption.

This study aims to overhaul the conventional understanding of tourism through a missiological lens, by positioning social interactions at the Parbubu Tarutung Soda Water Tourism Object as the locus of Missio Dei (God's Mission) manifestation. Amidst the tendency of modern humans to be trapped in egocentrism, alienation, and minimal openness due to secular routines, God is present with a mission to transform human relations. Using a qualitative descriptive-theological method, this study analyzes three axes of social interaction (inter-tourists, tourists-managers, and tourists-local communities). The results of field research indicate that although the pattern of interaction between visitors is still minimalist and egocentric-group due to a purely physical recreation orientation, there is a strong spiritual modality in the service aspect (hospitality) of the managers that reflects the restoration of the image of God (Imago Dei). The absence of social conflict and the presence of sincere hospitality are identified not merely as business strategies, but as real implications of the work of the Holy Spirit who precedes the church (prevenient grace) in destroying human egoism. This study concludes that tourism can be an eschatological means by which social interactions are transformed into encounters that bring about God's Shalom, meaning that tourism can be a way to bring about God's peace through authentic encounters between tourists, rather than simply ordinary tourist transactions. The author recommends the reconstruction of public spaces in this destination as inclusive communal spaces that facilitate reconciliation and social transformation.

Diabetes mellitus is a chronic metabolic disease characterized by elevated blood glucose levels due to impaired insulin secretion, insulin action, or both. Uncontrolled diabetes can lead to various complications and decreased quality of life. Moringa oleifera leaves contain bioactive compounds, including flavonoids, vitamins A, C, and E, as well as selenium, which possess antioxidant properties and are believed to help reduce blood glucose levels. This study aims to determine the effect of Moringa leaf decoction on reducing blood glucose levels in patients with diabetes mellitus in Padaleu Village, Kambu District, Kendari City. The study employs a quantitative pre-experimental design using a one-group pretest-posttest approach. The population consists of 35 diabetes mellitus patients, with 17 respondents selected through purposive sampling. Blood glucose levels are measured before and after the administration of Moringa leaf decoction using a glucometer and observation sheets. Respondents receive 200 ml of Moringa leaf decoction daily for five consecutive days. Data analysis is conducted using paired statistical tests to determine differences in blood glucose levels before and after the intervention. The findings of this study are expected to provide scientific evidence regarding the effectiveness of Moringa leaf decoction as a non-pharmacological therapy for controlling blood glucose levels among diabetes mellitus patients. Furthermore, the results may contribute to nursing science development and serve as a reference for healthcare providers and future researchers in implementing complementary therapies for diabetes management.

Korosi pada aluminium dalam lingkungan air laut merupakan permasalahan serius yang dapat menurunkan umur pakai material. Berbagai inhibitor alami telah dikembangkan sebagai alternatif ramah lingkungan, tetapi kajian mengenai penggunaan ekstrak labu kuning sebagai inhibitor korosi aluminium dalam media air laut, terutama dengan mempertimbangkan pengaruh temperatur, masih terbatas. Penelitian ini bertujuan untuk menganalisis pengaruh konsentrasi inhibitor ekstrak labu kuning dan temperatur terhadap laju korosi aluminium menggunakan metode weight loss. Variasi konsentrasi inhibitor yang digunakan adalah 0 ppm, 1000 ppm, 2000 ppm, dan 3000 ppm, dengan variasi temperatur 27°C, 35°C, dan 45°C selama waktu perendaman 24 jam. Hasil penelitian menunjukkan bahwa peningkatan konsentrasi inhibitor secara signifikan menurunkan laju korosi, dengan nilai optimum pada 3000 ppm yang menghasilkan laju korosi sebesar 0,448 mm/year dan efisiensi inhibisi sebesar 74,06%. Sebaliknya, peningkatan temperatur menyebabkan kenaikan laju korosi dan penurunan efisiensi inhibitor. Analisis parameter aktivasi menunjukkan bahwa penambahan inhibitor meningkatkan energi aktivasi (Ea) dari 17,075 kJ/mol menjadi 28,432 kJ/mol, yang mengindikasikan bahwa proses korosi menjadi lebih sulit terjadi. Secara keseluruhan, ekstrak labu kuning terbukti efektif sebagai inhibitor korosi ramah lingkungan yang bekerja melalui mekanisme adsorpsi dan pembentukan lapisan pelindung pada permukaan logam.

Background: Congestive Heart Failure (CHF) is a condition characterized by the inability of the heart to pump blood optimally, resulting in the accumulation of fluid in the lungs and other organs. This condition frequently causes ineffective airway clearance due to hypersecretion of the airway. Objective: This study aims to describe the comprehensive nursing care provided to Ny. R with Cardiovascular System Disorder: Congestive Heart Failure (CHF) with the main nursing problem of ineffective airway clearance at the Melati Ward of RSUD Banyumas. Method: This study used a descriptive method through a case study approach. Data were collected through interviews, physical examination, observation, and documentation. Results: Two nursing diagnoses were identified: (1) ineffective airway clearance related to airway hypersecretion, and (2) activity intolerance related to an imbalance between oxygen supply and demand. Nursing interventions included airway management and energy management. After two days of implementation (January 27–28, 2026), the first diagnosis was resolved and the second was partially resolved, with continued interventions recommended including monitoring of physical and emotional fatigue, advising bed rest, and monitoring vital signs. Conclusion: Comprehensive nursing care with appropriate interventions can effectively address ineffective airway clearance in CHF patients.

Clean water is a basic human necessity that plays a vital role in public health and well-being. However, access to clean water remains a challenge in many drought-prone areas. This condition requires effective planning and evaluation to ensure the sustainability of clean water supply programs. This article aims to examine the application of the Problem Solving Cycle (PSC) method in the planning and evaluation of clean water supply programs in drought-prone regions. The study employed a literature review method by analyzing various scientific articles and relevant documents. Data were analyzed descriptively through identification, classification, and information synthesis. The findings indicate that PSC supports program planning and evaluation through the stages of problem identification, cause analysis, action planning, implementation, monitoring, and evaluation. Clean water supply programs contribute to improving community access to safe water and adequate sanitation, although several challenges remain, including limited resources, infrastructure management issues, and program sustainability. Therefore, PSC can serve as an effective approach to support the success of clean water supply programs in drought-prone areas.

This study aims to analyze the dynamics of urban growth, land use change, and settlement development in Wamena City during 2020–2025. The research employed a quantitative descriptive approach using satellite imagery and population data obtained from the Central Bureau of Statistics (BPS) of Jayawijaya Regency. The analysis was conducted through satellite image interpretation to identify land use changes and the expansion of built-up areas.The results indicate that the built-up area in Wamena City increased from 1,250 hectares in 2020 to 2,012 hectares in 2025. Meanwhile, the population increased from 44,315 people to 49,102 people during the same period. Land use changes were dominated by the conversion of open land into residential areas and other urban facilities. Settlement growth generally followed the main road networks, city center, and areas surrounding Wamena Airport. Population growth, urbanization, economic activities, and infrastructure development were identified as the main factors influencing urban growth dynamics in Wamena City. These conditions resulted in reduced open spaces and increased urban density.

Penelitian ini bertujuan untuk menganalisis pengaruh kemiringan saluran terhadap koefisien debit (Cd) pada model ambang lebar. Pengukuran dilakukan dengan variasi ketinggian hulu dan hilir sehingga diperoleh kemiringan saluran yang berbeda-beda, kemudian dilakukan pengamatan terhadap debit aktual dan debit perhitungan pada setiap kondisi. Hasil eksperimen menunjukkan bahwa peningkatan kemiringan saluran cenderung meningkatkan kecepatan aliran dan koefisien debit, meskipun perubahan Cd tidak selalu linier karena dipengaruhi oleh faktor tinggi air di hulu, tinggi ambang, dan kondisi kritis maupun sub-kritis aliran. Selain itu, analisis Fr (Froude) menunjukkan bahwa aliran tetap berada dalam kondisi sub-kritis pada sebagian besar pengamatan, dengan transisi menuju aliran kritis terjadi pada debit lebih tinggi. Kesimpulan dari penelitian ini adalah bahwa kemiringan saluran memiliki pengaruh signifikan terhadap koefisien debit pada ambang lebar, sehingga desain saluran dan perhitungan debit harus mempertimbangkan kemiringan sebagai faktor penting. Data yang diperoleh dapat digunakan sebagai acuan dalam rekayasa saluran terbuka untuk memperkirakan debit dan karakteristik aliran secara lebih akurat.

Congestive Heart Failure (CHF) is a condition in which the heart is unable to pump blood adequately to meet the metabolic needs of the body. CHF is one of the most prevalent cardiovascular disorders globally, nationally, and locally, contributing to significant morbidity and mortality. This study aims to describe a comprehensive nursing care process applied to a patient (Mr. R) diagnosed with CHF at the Mawar 1 Ward of RSUD dr. Soeselo, Tegal Regency. This study used a descriptive case study design. Data were collected through interviews, physical examination, observation, and medical record documentation on February 9–11, 2026. Three nursing diagnoses were identified: ineffective airway clearance related to airway hypersecretion, fatigue related to physiological conditions (chronic disease), and knowledge deficit related to insufficient information exposure. Nursing interventions applied included airway management (semi-Fowler positioning, oxygen therapy, effective coughing technique), energy management (range-of-motion exercise, gradual activity), and health education about CHF. After 2×24 hours of nursing care, all three nursing diagnoses were resolved: airway clearance improved (SpO₂ increased from 91% to 95%, respiratory rate decreased from 28 to 23 times/minute), fatigue decreased, and patient knowledge about CHF improved. Systematic nursing care significantly improved the patient's condition in CHF management.

This study examines land-use transformation in Hamadi Rawa I, Jayapura City, focusing on the shift from water catchment to built-up land during 2015–2025. The research employs a mixed-methods approach, combining analysis of Google Earth imagery with interviews with community, government, and academic stakeholders. Findings show the catchment area shrank by 48% (from 17% to 8% of the total area), decreasing from 21.36 ha to 11.20 ha. The built-up area increased by 28.1%, from 70.78 ha to 90.67 ha, with residential development driving most of this growth (51.1%). Three spatial transformation patterns emerged: ecological fragmentation, linear service sector development, and concentric settlement patterns. Idle land was also identified as a phenomenon that damages ecological functions without providing a productive benefit. The conversion was driven by physical-natural factors (basin topography), economic factors (market proximity), socio-demographic factors (urbanization), and especially institutional factors. Customary land transactions outside state control created a governance dilemma between humanity and public order. The study recommends a proactive-collaborative approach with three key instruments: (1) Zero-Reclamation with Adaptive Permitting for stilt structures; (2) fiscal intervention using Idle Land Tax and Payment for Ecosystem Services; and (3) a Participatory Spatial Control Task Force integrating government and customary authorities (Ondoafi).

Chronic Obstructive Pulmonary Disease (COPD) is a chronic respiratory disease that can be prevented and treated, characterized by persistent and progressive airflow limitation. This condition causes patients to experience shortness of breath and decreased oxygen saturation, therefore requiring non-pharmacological interventions, one of which is the application of the Tripod Position to help improve patient oxygenation. This study used a case study design involving the application of Tripod Position therapy in three respondents diagnosed with COPD. The intervention was carried out for three consecutive days, with oxygen saturation levels being monitored before and after each intervention. The results of the Tripod Position application indicated an improvement in oxygen saturation in all respondents. Respondent 1 experienced an increase in oxygen saturation by 3%, respondent 2 by 1%, and respondent 3 by 3%. Overall, the application of the Tripod Position showed a positive effect in gradually increasing oxygen saturation among COPD patients. These findings suggest that the Tripod Position can be used as an effective non-pharmacological intervention in nursing care for COPD patients. Therefore, the Tripod Position is recommended to be applied as a simple, practical, and supportive therapy to improve oxygen saturation and respiratory function in COPD patients.  

Waste is an environmental problem that can cause air pollution and health problems if not managed properly. The presence of Temporary Waste Disposal Sites (TPS) close to residential areas often produces unpleasant odors due to the decomposition of organic waste, thus disturbing the comfort of the community. This study aims to determine the relationship between the distance of homes from TPS and odor disturbances in the community in Andounuhu Village, Kendari City. The study used a quantitative method with a cross-sectional design on 58 respondents selected by purposive sampling. Data collection was carried out through questionnaires and observations, then analyzed univariately and bivariately. The results showed that residents living less than 100 meters from the TPS experienced odor disturbances more often than those living further away. The further the distance of the house from the TPS, the level of odor disturbance tended to decrease. This study shows that the proximity of residential areas to TPS affects environmental comfort, so that more optimal TPS management is needed through routine waste transportation and arranging TPS locations that are not too close to residential areas.

Waste is an environmental problem that can cause air pollution and health problems if not managed properly. The presence of Temporary Waste Disposal Sites (TPS) close to residential areas often produces unpleasant odors due to the decomposition of organic waste, thus disturbing the comfort of the community. This study aims to determine the relationship between the distance of homes from TPS and odor disturbances in the community in Andounuhu Village, Kendari City. The study used a quantitative method with a cross-sectional design on 58 respondents selected by purposive sampling. Data collection was carried out through questionnaires and observations, then analyzed univariately and bivariately. The results showed that residents living less than 100 meters from the TPS experienced odor disturbances more often than those living further away. The further the distance of the house from the TPS, the level of odor disturbance tended to decrease. This study shows that the proximity of residential areas to TPS affects environmental comfort, so that more optimal TPS management is needed through routine waste transportation and arranging TPS locations that are not too close to residential areas.

This study aims to analyze the quality of public services at the Kelurahan Air Putih, Samarinda Ulu District, Samarinda City, East Kalimantan. The research uses a descriptive qualitative method with data collected through interviews and questionnaires. The findings indicate that public service quality at Kelurahan Air Putih is generally categorized as good, as reflected in the majority of respondents agreeing with most service quality indicators, including procedural clarity, staff friendliness, service speed, and administrative requirements. Service completion targets approximately 15 minutes when all requirements are met. However, several aspects still require improvement, particularly in terms of information accessibility, service speed, facility availability, and reduction of service barriers. The study concludes that routine internal evaluation and openness to community feedback are key factors in maintaining and improving service quality. In addition, strengthening employee competence through regular training, optimizing digital service systems, improving public communication, and enhancing supporting infrastructure are expected to increase service effectiveness and customer satisfaction. These improvements will also contribute to more transparent, accountable, responsive, efficient, and citizen-oriented public services while supporting sustainable improvements in local government administrative performance and public trust.

Hyperemesis gravidarum is excessive nausea and vomiting in pregnant women to the point of interfering with daily activities. Hyperemesis gravidarum affects the mother's physiological condition. Continuous nausea and vomiting can cause carbohydrate and fat reserves to be used up for hormonal needs, resulting in activity intolerance, and imperfect fat oxidation, resulting in ketosis. This case study aims to explain Nursing Care for Patient Mrs. B with Hyperemesis Gravidarum Case in Providing Ginger Water Decoction to Reduce Nausea and Vomiting in Pregnant Women in Arafah Room 3 RSUDZA Banda Aceh. This design is a case study with a nursing process approach, the results of the case study found three nursing diagnoses, namely nausea related to pregnancy, the risk of nutritional deficits related to psychological factors (reluctance to eat) and anxiety related to lack of exposure to information. The nursing actions given are providing non-pharmacological therapy: ginger decoction, encouraging patients to eat little but often and providing information about physiological symptoms in pregnant women in the first trimester, including nausea and vomiting. The results of the evaluation after 5 visits for the nursing diagnosis of Nausea related to pregnancy were obtained at the fifth visit. The subjective data evaluation of the client said that nausea was still felt occasionally, the client said that vomiting was no longer present, the client said that appetite had started to improve

This study aims to explore the use of English speaking skills by airline operational staff at Indonesia Air Asia at Juanda International Airport, Surabaya. English plays a crucial role in aviation operations, particularly in ensuring effective communication, maintaining service quality, and supporting operational safety in interactions with international passengers, flight crews, and airport stakeholders. This research employed a descriptive qualitative approach to gain an in-depth understanding of how English is used in real operational contexts and how staff perceive its importance in their daily responsibilities. The data were collected from ten airline operational staff members through semi-structured interviews, direct observations, and document analysis. The data were analyzed thematically following the qualitative data analysis model proposed by Matthew B. Miles, A. Michael Huberman, and Johnny Saldaña. The findings indicate that speaking skills are the most frequently used English skills in daily airline operations, especially when handling passenger inquiries, boarding procedures, and operational coordination. However, several challenges were identified, including difficulties in understanding diverse accents, limited aviation-related vocabulary, grammatical inaccuracies, and a lack of confidence in spontaneous communication. The study concludes that continuous and context-based English training programs are necessary to support airline operational staff in improving their communicative competence, particularly speaking skills relevant to aviation operations and international service standards.

Gorontalo Province has abundant freshwater resources, yet lacks integrated and sustainable aquaculture facilities. This article presents the conceptual design of a Freshwater Fish Aquaculture Center in Gorontalo Province as a response to this condition, applying Ecological Architecture as the primary design approach. The designed area accommodates various activities including freshwater fish cultivation, education, tourism, as well as research and development of fisheries technology. The method used is a qualitative descriptive approach through literature studies, field observations, interviews, and precedent studies. The design results show that the area can be divided into four main zones: the aquaculture zone, education zone, tourism zone, and supporting zone. The ecological approach is realized through the use of natural lighting and ventilation, environmentally friendly materials, an integrated water management system, and the maximization of green open spaces. This design is expected to increase fisheries productivity while promoting community empowerment through educational activities and environmentally sustainable tourism.

Perkembangan ilmu pengetahuan dan teknologi yang pesat di Indonesia telah mendorong pertumbuhan industri secara signifikan. Meskipun memberikan dampak positif terhadap peningkatan perekonomian masyarakat, pertumbuhan industri juga menimbulkan dampak negatif apabila tidak diiringi dengan pengelolaan lingkungan yang baik, seperti pencemaran dan kerusakan lingkungan hidup. Salah satu solusi yang dapat diterapkan dalam mengurangi dampak tersebut adalah pengelolaan limbah cair melalui sistem Instalasi Pengolahan Air Limbah (IPAL). PT. X, sebagai perusahaan BUMN, turut berkontribusi dalam pengelolaan lingkungan melalui penerapan IPAL. Fokus IPAL di PT. X meliputi perencanaan dan rekayasa instalasi, audit dan inspeksi sistem air, serta monitoring dan pengujian kualitas limbah, khususnya limbah domestik. Limbah domestik, yang berasal dari aktivitas rumah tangga seperti air bekas mandi, mencuci, dan dapur, diolah melalui metode IPAL agar dapat dimanfaatkan kembali untuk keperluan non-konsumsi, seperti penyiraman tanaman dan irigasi. Pengolahan ini menjadi langkah strategis dalam mendukung pembangunan industri yang ramah lingkungan dan berkelanjutan.

Perkembangan ilmu pengetahuan dan teknologi yang pesat di Indonesia telah mendorong pertumbuhan industri secara signifikan. Meskipun memberikan dampak positif terhadap peningkatan perekonomian masyarakat, pertumbuhan industri juga menimbulkan dampak negatif apabila tidak diiringi dengan pengelolaan lingkungan yang baik, seperti pencemaran dan kerusakan lingkungan hidup. Salah satu solusi yang dapat diterapkan dalam mengurangi dampak tersebut adalah pengelolaan limbah cair melalui sistem Instalasi Pengolahan Air Limbah (IPAL). PT. X, sebagai perusahaan BUMN, turut berkontribusi dalam pengelolaan lingkungan melalui penerapan IPAL. Fokus IPAL di PT. X meliputi perencanaan dan rekayasa instalasi, audit dan inspeksi sistem air, serta monitoring dan pengujian kualitas limbah, khususnya limbah domestik. Limbah domestik, yang berasal dari aktivitas rumah tangga seperti air bekas mandi, mencuci, dan dapur, diolah melalui metode IPAL agar dapat dimanfaatkan kembali untuk keperluan non-konsumsi, seperti penyiraman tanaman dan irigasi. Pengolahan ini menjadi langkah strategis dalam mendukung pembangunan industri yang ramah lingkungan dan berkelanjutan.

The flash floods that struck Aceh Tamiang caused infrastructure damage and contaminated clean water sources, making it difficult for residents to obtain potable water. This situation increases the risk of water-borne diseases and worsens the post-disaster situation. This research aims to develop a large-scale, simple water filtration prototype as an emergency response solution that is effective, economical, and easy to implement by affected communities. The methods used include field observation, water sampling, testing simple physical parameters (turbidity, color, odor, and pH), and designing a gravity-based, multi-stage filtration system without electricity. The prototype uses a combination of filter media such as gravel, silica sand, activated charcoal, and natural fibers in a drum system. Test results show a decrease in turbidity levels from 150–300 NTU to 5–15 NTU after the filtration process, as well as an increase in pH to near neutral. The filtered water is declared suitable for sanitation and consumption after undergoing a further disinfection process. In addition to implementing the technology, this research also includes public education regarding the selection of safe water sources and maintenance of the filtration system. Based on these results, this large-scale simple water filtration prototype is effective as an appropriate technological solution in handling the post-disaster clean water crisis and has the potential to be replicated in other flood-prone areas.