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Indonesia's dependence on fossil energy, which reaches 98%, results in high CO₂ emissions and energy costs. This study aims to design a wind energy system to meet electricity needs at the Arafuru Field of the Indonesian Navy Academy (AAL), which is strategically located near the coast with adequate wind potential. A quantitative research method was used by collecting wind speed data for three months (January-March 2025) at coordinates 7.21755° S, 112.71022° E. The data shows an average wind speed of 2.32 m/s with unpredictable direction. Based on the analysis, the SH-X 10000 vertical wind turbine was selected as the most suitable solution. Calculation results show that one turbine unit can generate power of 104,999 watts, so to meet the total power requirement of 109,120 watts, at least 2 wind turbine units are needed. This system not only reduces dependence on PLN and fossil energy but also has the potential to reduce CO₂ emissions and can be utilized as a learning laboratory for AAL cadets. The implementation of wind energy at AAL's Arafuru Field is expected to be a concrete step in the transition towards renewable energy in the military environment.

Health care facilities are places used for promotive, preventive, curative, and rehabilitative health services carried out by the government and the community. Calculating the germ count on door handles of healthcare facilities is very important, because patients are not aware that the door handles contain and transmit germs that cause infections. This study aims to determine the percentage of germ contamination on door handles of healthcare facilities at X Hospital and X Community Health Center. The type of research conducted is descriptive quantitative with an observational case report approach. This study is a frequency distribution in tabular form using a percentage formula. The number of samples used by the researchers was 8 samples, using 4 sampling points at the Hospital and 4 sampling points at the Community Health Center (Puskesmas): the Emergency Room, Main Door, Pharmacy Room, and Laboratory Room. Data collection by conducting laboratory tests on door handle swab samples was then examined using the ALT method. The results showed that the percentage of door handles that did not meet ALT standards was 3 samples (75%) at X Hospital. Meanwhile, on door handles at health facilities Puskesmas. The percentage of door handles at Puskesmas was obtained 4 samples (100%) at X  Puskesmas. Door handles at health facilities do not meet the standards of the Republic of Indonesia's Minister of Health Decree No. 1204 / MENKES / SK / X / 2004, the decision Ho was accepted H1 was rejected.

This community service activity aims to introduce the use of the PhET virtual laboratory and to identify students’ responses to the PhET-based virtual laboratory training in empowering students at SMA Negeri 1 Unaaha. The program also seeks to address the issue of limited science practicum facilities in the partner school. The study employed a descriptive quantitative design involving a single group of 23 participants from grades X to XII in the science stream. Participants took part in several sessions, including orientation, demonstration, and exploration of the Build an Atom and Circuit Construction Kit: DC simulations. Research data were collected using a Likert-scale questionnaire consisting of 30 items covering six main indicators: conceptual understanding, motivation, activeness, interest, ability to operate PhET, and learning satisfaction. All questionnaire results were converted into percentages for each indicator. The analysis showed an average response rate of 86.67%, with details as follows: interest 92%, activeness 90%, motivation 88%, satisfaction 89%, operational ability 83%, and conceptual understanding 78%. These findings indicate a very positive acceptance and significant reinforcement in the affective, participatory, and technical skill aspects of the students.

Total cholesterol measurement is essential for assessing cardiovascular risk, but consistency between laboratory instruments must be validated for reliable results. Architect C4000 and Alinity C1000 operate on enzymatic principles but differ in system design, reagents, and supporting technology. This study aimed to compare total cholesterol measurements between the two instruments using a non-parametric statistical approach (Mann-Whitney test). A comparative analytical design was conducted with 100 serum samples obtained via purposive sampling and divided for measurement with each device. Statistical analysis evaluated differences, and mean differences were calculated using the Hodges-Lehman method. Results showed mean cholesterol values of 182.98 mg/dL for Architect and 182.37 mg/dL for Alinity, with no significant difference (p=0.9942) and a median difference of 0.0 (95% CI: -9.0 to 9.0). Data distribution was nearly identical for both instruments in terms of mean and spread. Therefore, both methods demonstrate comparable validity in total cholesterol measurement, as they rely on similar principles and technologies, with reagents calibrated to the same standards.

Fournier gangrene (FG) is a progressive and life-threatening necrotising fasciitis that affects the perineum, perianal region, and external genitalia. FG is a rare condition with a high mortality rate, which is significantly influenced by comorbidities such as uncontrolled diabetes mellitus, which acts as a major predisposing factor. Early diagnosis and aggressive management, particularly surgical debridement, are key to improving patient outcomes. This study is a case report aimed at describing the clinical findings, management, and final outcome in one patient diagnosed with Fournier gangrene. Data were collected from the patient's medical records after obtaining consent. A 52-year-old man with a history of uncontrolled DM presented with complaints of pain radiating from the scrotum to the lower abdomen and perineum, scrotal swelling, and fever, which developed over 5 days. A urological physical examination revealed scrotal oedema, crepitus, and necrotic skin accompanied by foul-smelling discharge. Laboratory results showed leukocytosis and hyperglycemia. The patient was diagnosed with Fournier gangrene and immediately underwent necrotomy debridement. Pharmacological management included aggressive fluid resuscitation, broad-spectrum antibiotics, and supportive therapy. The diagnosis of Fournier gangrene was established based on clinical findings of skin necrosis, crepitus, and severe pain in the genital/perineal area with uncontrolled DM as a predisposing factor. Rapid and integrated management, including aggressive surgical debridement, broad-spectrum antibiotics, and fluid resuscitation, is fundamental to successful treatment. The patient in this case report showed improvement and was discharged after 8 days of treatment.

The implementation of Biology learning in senior high schools still faces various challenges, particularly the limitations of laboratory facilities and the low level of students’ science process skills(KPS). KPS  is an essential ability that supports conceptual understanding and critical thinking development through practical activities. This community service program aimed to improve students’ basic laboratory skills and KPS through hands-on training. The program was conducted at the Biology Education Laboratory of the Faculty of Teacher Training and Education, Kuningan University, involving students from SMAN 1 Ciwaru. The methods included socialization, laboratory equipment training, preparation of practical materials, animal dissection training, application of virtual laboratory technology, and mentoring and evaluation sessions. The results showed a significant improvement in students’ abilities to use laboratory tools, prepare materials, and perform experiments according to scientific procedures. Before the training, only 32% of students were able to use laboratory equipment correctly, while after the training, this increased to 84%. The average scores for observation, measurement, data interpretation, and scientific communication also improved significantly. Furthermore, a satisfaction survey revealed an average score of 4.6 out of 5, with 92% of participants stating that the activity was very beneficial. This program proved effective in enhancing students’ basic laboratory and science process skills, providing meaningful, applicable, and sustainable science learning experiences. Keywords: : training, basic skills, laboratory, science process skills, biology.  

Emesis gravidarum experienced by pregnant women can affect both maternal and fetal health, particularly in terms of nutrition and quality of life. One non-pharmacological approach that can be applied is peppermint aromatherapy, which should be implemented through safe and comprehensive midwifery care tailored to the mother’s needs. This case report aims to evaluate the effectiveness of peppermint aromatherapy in reducing symptoms of emesis gravidarum. The subject is Mrs. S, a 25-year-old pregnant woman at 7–8 weeks of gestation who received care at Melayu Kota Piring Public Health Center, Tanjungpinang, from February to March 2025. Data were collected through interviews, observations, physical and laboratory examinations, and documentation using the SOAP format. The results showed that peppermint aromatherapy effectively reduced the frequency and severity of nausea and vomiting, helping the mother maintain better food intake. In conclusion, peppermint aromatherapy can serve as an effective non-pharmacological alternative for managing emesis gravidarum in primary healthcare settings.

Adolescent girls are the most vulnerable group to iron deficiency during growth and menstruation. An innovative snack product gyoza substituted with tuna and added moringa leaves can be developed to increase protein and iron content. This study aimed to determine the effect of tuna substitution and moringa leaf addition on sensory evaluation of gyoza’s color, aroma, texture, and taste as a snack for adolescent girls with iron deficiency anemia. The research is a pure experimental research with a completely randomized design. The sensory test data collection technique was carried out on 35 untrained panelists. The 4 formulations developed, namely F1 (25g tuna substitution with the addition of 10g moringa leaves), F2 (50g tuna substitution with the addition of 10g moringa leaves), F3 (75g tuna substitution with the addition of 10g moringa leaves), and F4 (100g tuna substitution with the addition of 10g moringa leaves). Then it was analyzed using the Kruskal Wallis test and the Mann-Whitney test as a further test. The results of the four formulations showed that there was an effect of tuna substitution with the addition of moringa leaves on the texture and taste sensory test however, there was no effect of tuna substitution with the addition of moringa leaves on the color and aroma sensory test and the best product was obtained in F3. The results of the gyoza nutritional content test that was substituted with tuna and the addition of the best moringa leaves or F3 formula based on laboratory testing had a nutritional content of 11,25% protein and 0,022% iron per 100 grams of gyoza. It is hoped that further research will modify the amount of moringa leaves added to improve the organoleptic test of gyoza products by panelists and examine gyoza formulations for other nutritional content that has not been tested and economic value.

Rock stability and service life in geotechnical and mining engineering are highly dependent on the rock's mechanical and physical parameters, where the variation in sandstone grain size is a crucial intrinsic factor. This study aims to comprehensively analyze the correlation between sandstone grain size with uniaxial compressive strength (UCS) and resistance to weathering (Slake Durability Index) in samples taken from the Balikpapan and Pulau Balang Formations in the Samarinda area, East Kalimantan. The research methodology involved a series of standard laboratory tests, including rock physical properties analysis, grain size distribution analysis, UCS testing, and slake durability testing through three cycles. The test results show a significant correlation: sandstone with finer grain sizes and higher density consistently demonstrates greater UCS values and a higher Durability Index, indicating superior mechanical and physical resistance. Specifically, the Pulau Balang Formation exhibits a more compact structure and finer grain size, resulting in better durability values compared to the Balikpapan Formation. These findings are important as a geomechanical data basis for slope design planning, rock mass stability analysis, and material selection in infrastructure projects or mining operations involving both formations.

The Hospital Management Information Sistem (SIMRS) is a key component in the digital transformation of healthcare services, aiming to enhance efficiency and service quality. This study evaluates the implementation of SIMRS at Mutiara Bunda Mother and Child Hospital and explores the challenges and opportunities for improvement. A qualitative case study approach was employed, with data collected through in-depth interviews, observations, and document reviews involving five key informants, including the medical records head, medical service manager, registration officers, and IT staff. The results show that the SIMRS covers registration, procedure input, laboratory, and pharmacy functions. However, issues such as delayed data entry by medical staff, limited equipment, lack of integration across service units, and absence of written user guidelines and regular training persist. The study concludes that although the SIMRS is in use at RSIA Mutiara Bunda, sistem optimization, staff capacity building, and stronger managerial support are crucial to fully realize its potential in improving service quality.

This study examines the influence of Islamic education policy on the development of students' religious character at MAS Laboratory IAIN SU Medan. The background of this study lies in the importance of Islamic educational institutions in shaping not only students' intellectual capacity but also their spiritual and moral identity. The study also examines how educational policies relate to curriculum, learning processes, institutional culture, and teacher roles contr To get data from teachers, students, and school administrators, a qualitative descriptive approach was used, which included observations, interviews, and documentation. The results show that students' development of religious character is significantly impacted by the adoption of Islamic education policies. Key elements that support students' faith, self-discipline, and moral principles include teacher modeling, consistent religious practices in school activities, and integrated learning between religious and general courses. Nevertheless, issues like uneven policy implementation and low teacher proficiency continue to impede the best possible results. According to the study, maintaining and enhancing kids' religious character formation in Islamic educational contexts requires professional teacher development, continuous policy execution, and close community, parent, and school involvement.

In German language courses at universities, students must learn four skills: reading, writing, listening, and speaking. To master these four skills, students must have a good command of vocabulary, as this is the foundation needed to master the German language. This software does not require programming code, so users can easily add graphics and sounds to the game. Without vocabulary, skills such as reading, writing, speaking, and listening cannot be performed. This study aims to create a Construct 2 application that can be used by college students to increase their A1 level German vocabulary. The data for this study is A1 level German vocabulary with the theme “Guten Appetit,” and another source of data is the book “Netzwerk neu A1 Kursbuch” published by Ernst Klett Sprachen GmbH in 2019. This research will be conducted in the foreign language laboratory at UNIMED. The application will be tested by subject matter experts and learning media experts. This research will be published in a nationally indexed journal.

Coal is an important energy source that is still widely used in industry, especially the power generation industry, because of its high energy content. However, in the process of handling and storage, coal has the characteristic of being easily oxidized, This oxidation process, if it occurs continuously, can cause internal heat accumulation which eventually triggers spontaneous combustion. This study aims to analyze changes in coal quality before and after spontaneous combustionto find out how spontaneous combustionaffects coal quality in stockpiles. The research method used is a quantitative method where the data from laboratory tests on coal quality before and after spontaneous combustionis analyzed, the comparison of coal quality in stockpile 10 before and after spontaneous combustionis then graphed to see changes in the quality of each parameter. Based on the results of the analysis of changes in coal quality before and after spontaneous combustion, there were significant changes to several coal quality parameters, namely Total Moisture which was originally from 7.06% to 5.50% (down by 1.56%), Moisture which was originally 3.91% to 3.22% (down by 0.69%), Ash Content which was originally 8.84% to 14.67% (up by 5.83%), Volatile Matter which was originally 39.77% to 35.10% (down by 4.67%),  Fixed Carbon from 47.48% to 47.01% (down by 0.47%), Sulphur from 0.55% to 0.46% (down by 0.9%), and Calorific value decreased from 6,921 to 6,289 kcal/kg (down by 632 kcal/kg). This decrease in quality has a direct effect on the selling value and efficiency of coal combustion. The existence of an analysis of changes in coal quality due to spontaneous combustioncan help companies to find out how much of an impact losses can be caused by the occurrence of spontaneous combustion. By considering the potential losses due to spontaneous combustion, the company will make efforts to prevent the occurrence of spontaneous combustion in the future to minimize the losses caused.

Low frequency and minimal practicum facilities have become the main problems in the implementation of science learning at SMP Negeri 1 Sambi, Boyolali. According to the Minister of National Education Regulation Number 24 of 2007, the learning process requires facilities and infrastructure that support optimal implementation. The benefits of science practicum include increasing students’ motivation to learn science and providing opportunities for them to satisfy their curiosity through scientific approaches. The purpose of this research is to examine the implementation of science practicum and to evaluate the quality of the facilities and infrastructure of the science laboratory at SMP Negeri 1 Sambi, Boyolali. This study used a descriptive qualitative method with data collected through observation, documentation, interviews, and questionnaires. The results show that the quality of facilities and infrastructure for science practical activities at SMP Negeri 1 Sambi, Boyolali is classified as good, as stated in the Minister of National Education Regulation Number 24 of 2007, with an average percentage of 71.62%. The implementation of science practicum is categorized as very good, with an average percentage of 97.8%. The results of the questionnaire also show that 93.4% of the science practicums fall into the very good category, meaning that the implementation of science practicum for Grade VIII in the odd semester runs well.

This study investigates the use of experimental statistical analysis as an instructional approach to enhance students’ understanding of variable relationships in science learning. Many students tend to memorize experimental results without comprehending the underlying relationships between variables, resulting in limited analytical reasoning and superficial understanding. To address this issue, the present study explores how integrating basic statistical tools-such as mean, correlation, and regression-into experimental activities can strengthen conceptual comprehension, analytical reasoning, and scientific literacy. Grounded in constructivist and inquiry-based learning frameworks, the research emphasizes active engagement, where students participate in data collection, analysis, and interpretation to draw evidence-based conclusions. The study employed a quasi-experimental design involving science students divided into experimental and control groups. Both groups conducted similar laboratory experiments, but only the experimental group received explicit instruction in statistical analysis. Data were collected through pre-tests and post-tests to measure changes in students’ understanding of variable relationships. The results indicated a 25% improvement in the experimental group’s comprehension and reasoning ability compared to the control group. Students who applied statistical analysis demonstrated greater proficiency in interpreting data, identifying causal patterns, and connecting theoretical knowledge to experimental findings. In contrast, students taught through traditional narrative-based instruction showed minimal gains and relied heavily on memorization. The findings highlight the effectiveness of integrating statistical reasoning in promoting critical thinking, problem-solving, and scientific reasoning skills.

Science process skills and conceptual mastery are two crucial aspects. Conceptual mastery involves understanding scientific concepts, while science process skills encompass the ability to conduct scientific work, apply concepts, predict and inquire, interpret and communicate, hypothesize, conclude, plan, and conduct experiments. The aim of this study is to determine the relationship between science process skills and conceptual mastery through practical methods. The research method employed is quantitative with a correlational design. The study population includes all 11th-grade MIPA students at SMA Negeri 1 Bumi Agung, Lampung, with cluster random sampling used to select Class XI MIPA 1 as the sample. Data collection involved observation sheets and tests. Data analysis was conducted using Pearson product-moment correlation coefficient. The correlation analysis began with testing prerequisites such as normality and linearity, confirming that the data were normally distributed and linear. The correlation between science process skills and conceptual mastery yielded an pearson correlation coefficient (r) of 0.940 with N = 32. The critical value (r-table) was 0.349. Since 0.940 > 0.349 and the significance value (2-tailed) was 0.00 < 0.05, H0 was rejected and H1 was accepted, indicating a very strong relationship between science process skills and conceptual mastery through practical methods. Theoretically, these findings affirm the importance of practice-based learning in strengthening conceptual understanding. Practically, the results recommend integrating structured laboratory activities to enhance students’ scientific inquiry skills and conceptual mastery.

Errors in the pre-analytical phase are a dominant factor causing inaccurate laboratory test results, including blood serum cholesterol analysis. Pre-examination specimen handling is crucial to ensure the quality of measurement results. This study aimed to compare serum cholesterol levels in blood frozen before centrifugation with those immediately centrifuged. The research method was analytical using a cross-sectional design. A total of 35 respondents were involved, consisting of laboratory staff, emergency room staff, pharmacists, and administration at Sinar Kasih GKST Tentena Hospital. Blood samples were obtained via venipuncture after participants had fasted for 10–12 hours. Each sample was then separated into two groups: those immediately centrifuged and those frozen 20–30 minutes before centrifugation. Data collection was carried out by examining serum cholesterol levels using an Erba Mannheim Chem-7 photometer. The results showed that the average cholesterol level in frozen samples was higher (161.4 mg/dL) compared to samples immediately centrifuged (140.45 mg/dL). The Mann-Whitney statistical test yielded a p-value of 0.006 (p<0.05), indicating a significant difference between the two treatments. This confirms that pre-analytical handling of blood specimens significantly impacts the validity of cholesterol test results. Therefore, careful attention to the pre-analytical stage is essential to ensure the accuracy of laboratory results.

Kebonagung hamlet in Sukolelo village is an area where the majority of residents cultivate bananas. The abundant banana production generates a considerable amount of waste, one of which is banana stems that are usually piled up, burned, or left to rot without further use. Therefore, this community service project aims to provide a comprehensive overview of the potential use of banana waste as raw material for organic compost in Kebonagung Hamlet, Sukolelo Village. The methods used in this study involved banana farmers as research subjects and banana stems as research objects, with data collection techniques including field observations, interviews with farmers, and composting experiments. Simple laboratory analysis shows that compost from banana waste contains 1.8% nitrogen (N), 0.9% phosphorus (P), and 2.3% potassium (K), making it highly potential for use as compost material. In addition, composting activities can create new jobs through the development of organic fertilizer management business units at the village level. This is in line with Sustainable Development Goal (SDG) 12 on responsible consumption and production. According to Santoso (2020), the benefits of compost include: (a) improving soil structure, (b) increasing soil water storage capacity, (c) increasing soil microbial activity, and (d) reducing dependence on chemical fertilizers. Qualitative data were analyzed through data reduction, data presentation, and conclusion drawing in the form of nutrient content analyzed using simple laboratory tests to determine the levels of N, P, and K. The banana waste composting process went well. In the first week, the temperature of the compost pile increased to 45°C, indicating high microorganism activity. The temperature stabilized at around 50–55°C. After the second week, the temperature decreased and stabilized close to the ambient temperature, indicating that the compost was mature.

Cake is a wheat flour-based food product that is popular because of its sweet taste, soft texture, and attractive appearance. This study aims to evaluate the effect of purple sweet potato (Ipomoea batatas) paste substitution on the sensory, chemical, and physical quality of chocolate cake decorated with character pudding. The study was conducted in May–August 2025 at the Makassar Health Laboratory Center and the Chemistry Laboratory of the Pangkep State Agricultural Polytechnic. The study design used a Completely Randomized Design (CRD) with five treatments of purple sweet potato paste concentration (0%, 10%, 20%, 30%, 40%) and two replications. The parameters analyzed included sensory tests (color, aroma, taste, texture, and overall), chemical tests (antioxidant activity, water content, protein, fat, ash, and carbohydrate), and physical tests (expandability and crumb morphology). Data were analyzed using ANOVA and Duncan's further test for parameters with significant differences. The results showed that the addition of purple sweet potato paste had a significant effect (p < 0.05) on sensory and chemical characteristics. Treatment A4 (40% purple sweet potato paste) obtained the highest score in the hedonic test with an average panelist preference level of 4 (like). The best chemical characteristics were also obtained in A4, namely antioxidant content of 25.6%, water content of 32.97%, protein 3.52%, fat 17.19%, ash 1.34%, and carbohydrate 45.05%. Physically, the rise power was not significantly different between treatments, but the crumb morphology showed pore irregularities at high concentrations.

Jenang Jubung is a typical snack from Gresik City. Its shape is unique and different from jenang in general. Jenang jubung tends to have a chewy, soft, savory, and sweet taste. This study aims: 1) To determine the effect of mocaf flour substitution on the organoleptic properties (chewy, shape, aroma, color, texture, and taste) of jenang jubung. 2) To determine the best nutritional value of Jenang Jubung. This type of research is an experimental study with 3 treatments consisting of 3 levels of mocaf flour substitution 25%, 50%, 75%. The data collection method was carried out by organoleptic testing with a total of 35 panelists consisting of 7 trained panelists and 28 semi-trained panelists. Data analysis used was to find the mean value, single Anova (One Way Anova), and duncan. Furthermore, laboratory tests were carried out on the best products to determine energy, carbohydrates, fiber, protein, fat, ash content, vitamin B1 (thiamine), vitamin B6, vitamin E, vitamin C, potassium minerals, magnesium minerals, phosphorus minerals, calcium minerals, iron minerals, water content. The results of the analysis showed 1) Mocaf flour substitution had a significant effect on (chewy, shape, aroma, color, texture, and taste); 2) The nutritional content of the best jenang jubung was obtained energy 365.80kcal; carbohydrate 51.09%; fiber 2.91%; protein 9.86%; fat 12.91%; ash content 1.05%; vitamin B1 (thiamine) 1.08Mg; vitamin B6 0.92Mg; vitamin E 1.32Mg; vitamin C 4.08Mg; potassium mineral 5.11Mg; magnesium mineral 19.81Mg; phosphorus mineral 105.80Mg, calcium mineral 11.81Mg; iron mineral 2.11Mg; water content 22.16%.