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Hypertension is a non-communicable disease with a high prevalence and is a major risk factor for serious complications such as stroke and heart disease. Low public awareness and limited capacity of health workers to provide education and early detection pose challenges in hypertension prevention efforts at the community level. The program “Capacity Building for Health Workers as an Effort to Prevent and Control Hypertension in Mandiangin Timur Village” was implemented by Field Learning Experience (PBL) Group 20 students in August 2025 in Mandiangin Timur Village, Karang Intan District, Banjar Regency. The intervention was carried out through interactive lectures, discussions, and the use of educational media in the form of posters, leaflets, and videos. The targets of the activity consisted of 17 cadres and 30 villagers. Knowledge evaluation using pre-tests and post-tests showed an increase in the average score of cadres from 95.28 to 96.46, while the community increased from 76 to 92.33. Blood pressure checks also showed that most participants were in stage 1–2 hypertension, emphasizing the need for ongoing education. This program proved effective in increasing the capacity of cadres and community knowledge about risk factors, prevention, and management of hypertension. In addition, this activity strengthened the role of cadres as agents of change in ongoing efforts to control hypertension at the village level.

Fully Homomorphic Encryption (FHE) enables computation on encrypted data with end-to-end confidentiality; however, its practical adoption remains limited by substantial computational costs, including long encryption and decryption times, high memory consumption, and operational latency. Zero-Knowledge Proofs (ZKPs) complement FHE by enabling correctness verification without revealing sensitive information, although they do not support encrypted computation independently. This study integrates both techniques to enable encrypted computation with verifiably consistent results. A prototype system is implemented in Python using Microsoft SEAL for homomorphic encryption and PySNARK for Zero-Knowledge Proof verification. Experiments are conducted on standard consumer-grade hardware (Intel i5, 8 GB RAM, Ubuntu 22.04) using datasets ranging from 100 MB to 1 GB. The evaluation focuses on encryption and decryption time, homomorphic computation latency, memory usage, and proof generation overhead. Experimental results show that integrating ZKPs introduces a moderate and stable runtime overhead of approximately 15–20%, as analyzed in Section 4, while enabling verification without plaintext disclosure. Ciphertext expansion remains a notable limitation, with observed growth of approximately 30–40× relative to plaintext size, consistent with prior FHE implementations. Despite these overheads, the system demonstrates feasible scalability for datasets up to 1 GB on mid-level hardware. Overall, the results indicate that the integrated FHE+ZKP approach provides a practical balance between confidentiality, verifiability, and performance, supporting its applicability to privacy-preserving scenarios such as secure cloud computation, encrypted data analytics, and confidential data processing under realistic resource constraints.

The concept of science according to Ibn Rushd emphasizes the harmony between religion and philosophy, as well as the importance of using rational thinking methods to achieve the truth. He divides human intellectual abilities into three levels, namely rhetoric, dialectical, and demonstrative, and distinguishes science into theoretical and practical sciences. According to Ibn Rushd, knowledge is obtained through cooperation between the senses, imagination, and intellect, so that the human thought process must run systematically and logically. This research uses the library research method to examine the relevance of Ibn Rushd's thought to Islamic boarding school education in the modern era. The results of the study show that Ibn Rushd's ideas can be the basis for integration between religious science and science, encourage the strengthening of students' critical reasoning, and avoid scientific dichotomy. In addition, the application of his thinking has the potential to improve the quality of learning for Islamic boarding schools to be more contextual, inclusive, and adaptive to the development of science and technology. Thus, the concept of Ibn Rushd's knowledge can strengthen the direction of pesantren education towards a holistic and civilization-oriented education system.

Maternal Mortality Rate (MMR) is a critical indicator for evaluating maternal health programs, and insufficient knowledge of pregnancy danger signs remains a significant factor in preventable maternal complications and mortality. This issue is particularly prevalent among third-trimester pregnant women. Health education has proven to be an effective strategy for enhancing maternal knowledge, promoting early detection of obstetric emergencies, and supporting timely decision-making. This study aimed to evaluate the impact of health education on improving knowledge of pregnancy danger signs among third-trimester pregnant women in Nunkurus Village. A pre-experimental study with a one-group pre-test–post-test design was conducted, involving 42 third-trimester pregnant women, with 40 selected through purposive sampling. Structured questionnaires were used to collect primary data, and the Wilcoxon signed-rank test was employed to analyze the knowledge differences before and after the intervention. Results showed a statistically significant increase in knowledge after the health education intervention (p-value = 0.000; p < 0.05). In conclusion, health education significantly enhances knowledge of pregnancy danger signs among third-trimester pregnant women. Strengthening community-level educational interventions can help in early detection of pregnancy complications and contribute to reducing maternal morbidity and mortality.

This community service activity aims to improve the First Aid Awareness of students at SMAN 5 Tegal through health education and first aid simulation for accident management. The background of this program is based on the high potential for mild to moderate emergency incidents in the school environment, such as fainting, open wounds, nosebleeds, choking, and seizures, as well as the limited knowledge and practical skills of students in providing appropriate initial assistance. The implementation method consisted of three stages: preparation, delivery of health education using presentations and demonstrations, and hands-on simulation, followed by evaluation through knowledge assessment and skills observation. The participants were 54 students representing three grade levels. The expected outcomes of this activity include an improvement in students’ conceptual understanding and practical ability to perform first aid quickly, correctly, and safely before professional medical help arrives. In addition, this program is expected to foster emergency responsiveness, increase students’ confidence in handling accident situations at school, and contribute to the development of a safer and more prepared school environment. The outputs of this activity include increased knowledge and skill scores, documented implementation, and publication of a community service article in a SINTA-indexed journal.

Anemia in toddlers is a serious nutritional problem that impacts physical growth, cognitive development, and the child's immune system. This study aims to provide an overview of the level of knowledge, attitudes, and practices of parents in preventing anemia in toddlers. This quantitative study involved 50 respondents using a structured questionnaire instrument covering the domains of knowledge, attitudes, practices, and sources of health information. The results showed that respondents' knowledge was in the adequate category; although all respondents (100%) understood the negative impact of anemia on growth and intelligence, only 80% understood the technical definition and clinical symptoms accurately. In the attitude domain, respondents showed a very positive response (100%) to the importance of balanced nutrition and early prevention. Regarding the practical aspect, although regular visits to integrated health posts (Posyandu) reached 100%, the consistency of daily animal side dish intake remained at 80%. An interesting finding showed a shift in information sources, with social media (80%) dominating over direct exposure to information from health workers (40%). This study concluded that there is a gap between positive attitudes and consistent daily practices, and the need to optimize health education through digital media by medical personnel to reduce the incidence of anemia in toddlers.

Adolescent reproductive health is a crucial issue requiring special attention in the digital era. Lack of proper knowledge about reproductive health can negatively impact adolescent lives. The utilization of digital technology as an educational medium is predicted to enhance the accessibility and effectiveness of delivering reproductive health information to adolescents. This study aims to determine the effect of digital-based reproductive health education on the knowledge level of students at SMA Negeri 1 Selesai. This study employed a quasi-experimental design with a pre-test and post-test one-group approach. The research sample consisted of 20 grade XI students selected using purposive sampling technique. The intervention involved digital-based reproductive health education delivered through Google Classroom platform and interactive learning videos over 4 weeks. The research instrument used a reproductive health knowledge questionnaire that had been tested for validity and reliability. Data were analyzed using paired t-test with a 95% confidence level. The results showed a significant increase in students' knowledge level after receiving digital-based education. The pre-test mean score was 61.50 (SD=9.15) categorized as moderate knowledge, while the post-test mean score increased to 79.25 (SD=7.68) categorized as good knowledge. Paired t-test results showed p-value=0.000 (p<0.05), indicating a significant difference between knowledge levels before and after the intervention. Digital-based reproductive health education proved effective in improving high school students' knowledge level. Digital media can be an effective alternative in providing reproductive health education to adolescents.

Measles Rubella (MR) immunization coverage in Indonesia remains below the national target of 95%, with coverage in 2024 reaching only 82.3% and showing a decline compared to the previous year. A lower coverage was observed in the working area of Pekanbaru Kota Public Health Center, where only238 out of 547 eligible children (41.3%) received MR immunization. Low immunization coverage may reduce herd immunity and increase the risk of measles and rubella outbreaks. This study aimed to analyze factors influencing MR immunization uptake among children under five in the working area of Pekanbaru Kota Public Health Center in 2025. This quantitative study employed a cross-sectional design involving 40 mothers of children aged 9–60 months selected through accidental sampling. Data were collected using structured questionnaires assessing maternal knowledge, attitudes, family support, support from health workers, and travel time to health facilities. Univariate and bivariate analyses were performed using the Chi-Square test at a 95% confidence level (α = 0.05). The results showed that 67.5% of respondents had provided MR immunization to their  children.  Significant associations  were  found  between  maternal knowledge (p = 0.033), maternal attitudes (p = 0.037), family support (p = 0.002), and health worker support (p = 0.015) with MR immunization uptake, while travel time to health facilities was not significantly associated (p = 0.053). In conclusion, maternal knowledge and attitudes, family support, and health worker support are significant factors influencing MR immunization uptake, highlighting the need to strengthen health education and family involvement to improve MR immunization coverage.

Population growth and changing consumption patterns have led to a continuous increase in waste generation, with household organic waste being the dominant component in Bantul Regency. Low levels of public knowledge and awareness regarding waste management are also contributing factors. One environmentally friendly alternative for organic waste management is the use of Black Soldier Fly (BSF) larvae, which have high bioconversion capabilities. This community service activity aims to increase the knowledge of housewives in managing household organic waste using BSF maggots. The activity was carried out in RT 01, Mojosari Hamlet, Baturetno Village, Banguntapan District, Bantul Regency, involving 20 participants. The implementation method included a site survey, material delivery, an introduction to the life cycle and benefits of BSF maggots, an explanation of waste sorting, maggot feeding, and post-activity observations. However, limitations in maggot maintenance techniques persisted, requiring ongoing mentoring. This activity contributes to reducing waste generation at its source and supports sustainable household waste management based on community participation.

Population growth and changing consumption patterns have led to a continuous increase in waste generation, with household organic waste being the dominant component in Bantul Regency. Low levels of public knowledge and awareness regarding waste management are also contributing factors. One environmentally friendly alternative for organic waste management is the use of Black Soldier Fly (BSF) larvae, which have high bioconversion capabilities. This community service activity aims to increase the knowledge of housewives in managing household organic waste using BSF maggots. The activity was carried out in RT 01, Mojosari Hamlet, Baturetno Village, Banguntapan District, Bantul Regency, involving 20 participants. The implementation method included a site survey, material delivery, an introduction to the life cycle and benefits of BSF maggots, an explanation of waste sorting, maggot feeding, and post-activity observations. However, limitations in maggot maintenance techniques persisted, requiring ongoing mentoring. This activity contributes to reducing waste generation at its source and supports sustainable household waste management based on community participation.

Low levels of maternal knowledge and appropriate nutritional practices, combined with limited continuity of nutrition education from health workers, remain significant risk factors for maternal and child health problems, including stunting. The GEMPITA Program (Gerakan Edukasi MPASI Tepat dan Aman / Safe and Appropriate Complementary Feeding Education Movement) was implemented as a community service initiative to improve nutritional knowledge, skills, and practices among families in the working area of Teratak Public Health Center. The program employed structured methods, including socialization, education, training, demonstrations, mentoring, and non-formal monitoring and evaluation. The target participants were mothers with children aged 6–24 months, as well as health workers and community health cadres. Program effectiveness was assessed using pretest posttest measurements and direct observation of behavioral changes. The results demonstrated a significant improvement in maternal knowledge regarding appropriate complementary feeding, enhanced skills in age-appropriate food preparation, and improved hygienic and nutritious feeding practices. In addition, the capacity of health workers to deliver nutrition education was strengthened. Overall, the GEMPITA Program proved effective in improving family nutrition practices and reinforcing the role of the public health center in stunting prevention through a sustainable community empowerment approach.

Community service activities in Kalirahayu 1 Village aim to improve the utilization of social media as a marketing tool for Micro, Small, and Medium Enterprises (MSMEs). This initiative is important because many MSME actors in the village have not maximized social media usage, which limits their opportunities to increase product sales and market reach. The program was implemented through consultations, practical training, and continuous mentoring involving 10 MSME actors in Kalirahayu Village. Through this activity, participants were introduced to digital marketing strategies, including content creation, product promotion, and customer interaction through social media platforms. The results showed that MSME actors gained new knowledge and skills in using social media effectively, while students involved in the program also developed practical experience in digital marketing. Although several challenges were encountered, such as limited technological facilities and differences in participants’ initial knowledge levels, the program successfully increased awareness of the importance of digital marketing. This activity demonstrates strong potential for sustainable development and is expected to support the growth and competitiveness of MSMEs in rural areas.

Tuberculosis (TB) is a contagious disease of the respiratory system that remains a global public health problem, including in Indonesia, with high incidence rates among adolescents due to intense social activities and interactions. This community service activity aims to increase adolescents' knowledge about TB from an epidemiological perspective, including modes of transmission, symptoms, risk factors, and prevention efforts as an airborne disease. The method used was a quasi-experimental approach with a two-group pretest-posttest design, through health education provided to 149 adolescents aged 15–17 years at Darussalam High School in Medan. Data collection was conducted using questionnaires to assess the level of knowledge before and after the educational intervention. The results of the activity showed a significant increase in the level of knowledge after the education was provided, where the percentage of respondents in the high knowledge category increased from 82% in the pre-test to 93% in the post-test, accompanied by a decrease in the sufficient and low knowledge categories. This study shows that community service activities through health education have a significant effect on increasing adolescents' knowledge about tuberculosis. Health education has been proven to be effective as a promotional and preventive measure, so it needs to be implemented continuously to prevent the transmission

Data from the 2020 LFSP (Long Form Population Census) recorded a maternal mortality ratio of 189 per 100,000 live births, while the infant mortality rate was recorded at 16.85 per 1,000 live births. The causes of maternal mortality were hemorrhage, preeclampsia/eclampsia, infection, prolonged labor, and miscarriage. Meanwhile, the majority of infant deaths were due to low birth weight, asphyxia, and infection at birth. Stunting remains a particular concern in Tegal City. Various measures have been taken, and the stunting rate has decreased to around 13.8% according to data from early 2025. This PKM is expected to increase public knowledge on caring for pregnant women, women in labor, postpartum women, and newborns, as well as preventing stunting in children, thereby reducing maternal and infant mortality rates. The methods used in this activity include health education and outreach with a promotive and preventive approach, targeting pregnant women and mothers with infants and toddlers. Community service was held on Wednesday, December 17, 2025, from 8:30 a.m. to 12:00 p.m. at the Boegenvil Health Center in Cabawan Village, Tegal City, with 53 participants. The results of this activity showed an increase in the level of knowledge of the participants, from 11 people with a good level of knowledge to 41 people after receiving counseling, with 3 participants still having a low level of knowledge.

Data from the 2020 LFSP (Long Form Population Census) recorded a maternal mortality ratio of 189 per 100,000 live births, while the infant mortality rate was recorded at 16.85 per 1,000 live births. The causes of maternal mortality were hemorrhage, preeclampsia/eclampsia, infection, prolonged labor, and miscarriage. Meanwhile, the majority of infant deaths were due to low birth weight, asphyxia, and infection at birth. Stunting remains a particular concern in Tegal City. Various measures have been taken, and the stunting rate has decreased to around 13.8% according to data from early 2025. This PKM is expected to increase public knowledge on caring for pregnant women, women in labor, postpartum women, and newborns, as well as preventing stunting in children, thereby reducing maternal and infant mortality rates. The methods used in this activity include health education and outreach with a promotive and preventive approach, targeting pregnant women and mothers with infants and toddlers. Community service was held on Wednesday, December 17, 2025, from 8:30 a.m. to 12:00 p.m. at the Boegenvil Health Center in Cabawan Village, Tegal City, with 53 participants. The results of this activity showed an increase in the level of knowledge of the participants, from 11 people with a good level of knowledge to 41 people after receiving counseling, with 3 participants still having a low level of knowledge.

Health education at the elementary school level represents a long-term investment in developing a stronger and more capable generation. By fostering a proper understanding from an early age, children are expected to build a resilient defense against various health threats. This community service program aims to broaden the knowledge and awareness of students at SDN 054945 Dogang Village, Gebang District, Langkat Regency, North Sumatra, regarding Clean and Healthy Living Behavior (known as PHBS). As a promotive and preventive strategy, PHBS is essential to instill from childhood to cultivate healthy habits and prevent various health disorders. This study utilizes a qualitative approach, applying the Miles and Huberman interactive analysis model. The activity, conducted on July 20, 2024, involved 77 fourth and fifth-grade students and followed three main stages: preparation, implementation, and evaluation. Socialization was carried out interactively through handwashing tutorial videos, physical exercises, PHBS-themed songs and rhythmic clapping, and Q&A sessions. The results indicated an improvement in students' understanding of various PHBS indicators, including handwashing habits, waste management, healthy food consumption, physical activity, growth monitoring, avoiding tobacco smoke, maintaining toilet cleanliness, and eradicating mosquito larvae. The active participation shown by the students reflects a heightened awareness of practicing PHBS within the school environment. In conclusion, this educational initiative has delivered a positive impact on student knowledge and holds the potential to foster a sustainable culture of clean and healthy living, both at school and in their daily lives.

Oral and dental health problems among elementary school children remain relatively high, particularly dental caries, which is influenced by low levels of knowledge and inadequate toothbrushing skills. Children aged 6–12 years are in the mixed dentition phase and therefore require special attention in maintaining oral hygiene. This community service activity aimed to improve the knowledge and toothbrushing skills of elementary school students through a demonstration method using a dental phantom model. The activity was conducted at SD Inpres Maccini Sombala I in January 2026 and involved elementary school students as participants. The methods applied included oral health education, demonstration of proper toothbrushing techniques using a dental phantom, mass toothbrushing practice, and evaluation through pre-test and post-test as well as direct observation. The results showed an improvement in students’ understanding of the correct timing, frequency, and technique of toothbrushing, namely brushing twice a day after breakfast and before bedtime. In addition, students were able to practice proper toothbrushing techniques more effectively after the demonstration. The use of a dental phantom as an educational medium proved to be effective in increasing students’ interest, understanding, and toothbrushing skills. This activity is expected to help establish good toothbrushing habits from an early age and support promotive and preventive efforts to reduce the prevalence of dental caries among elementary school children.

Malnutrition and stunting among children under five remain major public health challenges in developing countries, including Indonesia. These conditions are associated with increased morbidity, mortality, impaired cognitive development, and reduced productivity in adulthood. Stunting reflects chronic nutritional deficiencies, while severe malnutrition indicates acute or prolonged inadequate nutrient intake, often exacerbated by infections, poor caregiving practices, and unfavorable socioeconomic conditions. This case report aims to describe the clinical condition, contributing factors, management, and outcomes of a 14-month-old female toddler diagnosed with severe malnutrition and stunting without complications in Blang Dalam Geuteung Village, Nisam Subdistrict, North Aceh Regency. The assessment was conducted using a family medicine approach, incorporating detailed history taking, physical examination, anthropometric measurements, and nutritional status evaluation based on World Health Organization Z-score indicators. Interventions included nutritional rehabilitation through appropriate dietary intake, family education on balanced nutrition and proper feeding practices, routine growth monitoring, and optimization of primary healthcare services. The results showed gradual improvement in the child’s nutritional status, evidenced by weight gain, better appetite, and improved feeding patterns following the intervention. This case highlights the importance of early detection, comprehensive family-centered management, and continuous monitoring in addressing malnutrition and stunting at the primary care level. Strengthening community-based interventions, improving caregiver knowledge, and enhancing collaboration between healthcare providers and families are essential to reduce the burden of malnutrition and support optimal child growth and development.

The problem of household organic waste remains a major challenge in urban areas, including in the North Rejowinangun Village of Magelang City. High population density and limited land use cause the volume of organic waste to continue to increase and impact the condition of the Final Disposal Site (TPA) which is experiencing overcapacity. This community service activity aims to provide a community-based organic waste management solution through the cultivation of Black Soldier Fly (BSF) maggots as a method of organic waste bioconversion. The implementation method is carried out in a participatory manner through the stages of preparation and problem identification, implementation of activities in the form of education and direct practice of BSF maggot cultivation, as well as monitoring and evaluation. The results of the activity show that BSF maggots are able to decompose household organic waste effectively, as indicated by a reduction in waste volume in a relatively short time and a decrease in potential odor. BSF larvae show stable growth with a high level of waste consumption, especially in media with good humidity and management. In addition to the environmental impact, this activity also increases public knowledge and awareness about the importance of organic waste management and opens up opportunities for the development of maggot cultivation as a productive activity with economic value. Thus, BSF maggot cultivation can be an alternative solution for sustainable organic waste management that is easy to implement in the community.

The COVID-19 pandemic caused by SARS-CoV-2 has had a significant impact on public health behavior, including the increasing consumption of health supplements as an effort to strengthen immunity. This study aims to describe the level of knowledge of the people of Gedongan Village RT 01 RW 05 regarding the use of health supplements during the pandemic. Health supplements are defined as products that contain vitamins, minerals, amino acids, and herbal ingredients to support the immune system. The study used a descriptive approach with a survey method, involving 106 respondents who were selected purposively. Primary data was obtained through a structured questionnaire that had been validated, then analyzed descriptively. The results showed that the majority of respondents had a level of knowledge in the sufficient category (54%), followed by the poor category (25%) and the good category (21%). Respondents understood the benefits of supplements as a nutritional supplement, but knowledge related to rules of use, appropriate dosage, and potential side effects was limited. Demographic factors such as age, education, and type of work have an effect on knowledge levels, where respondents of productive age, secondary education, and work with cognitive demands show better understanding. The study concludes the need for continuous health education through health workers, especially pharmacists, with an approach according to demographic characteristics to encourage the use of supplements in a rational, safe, and appropriate manner.