Publication Search

This research proposes an alternative model for predicting the plasticity potential of clay soils, updating the previous model developed by Firincioglu and H. Bilsel. The alternative lies in the use of the fine fraction content (FC) as the predictive variable, replacing the percentage of sand fraction content (SC) previously suggested. The analysis was conducted on 61 low-plasticity clay (CL) soil samples, classified using the Casagrande and Moreno-Maroto systems, by examining the relationship between consistency limits (LL, PI), grain fractions (sand, silt, clay), and related parameters (FC, sand-silt-clay spectrum, and sand fraction ratio). The correlation analysis results show significant findings, including a strong positive correlation between sand content and the sand ratio (SR), as well as a negative correlation between sand content and FC, and between FC and SR. The performance of the substitute Casagrande quadratic model [2] reveals the best predictive accuracy among the proposed models ( [1], R² =0.90; [3], R²  0.89; [4], R² =0.43; [5], R² =0.93; [6], R² =0.93; [7], R² =0.89; [8], R² =0.89), with the highest R2 value of 0.93, MSE of ≈4.01, and MAE of ≈1.44–1.47. The equation is .

This study analyzes the maintenance process of the Roll Bending machine used in the wind tower production line at PT Kenertec Power System, Cilegon, Indonesia. The Roll Bending machine plays a crucial role in shaping steel plates into cylindrical shell components, which are later assembled into wind tower sections. The objective of this research is to identify maintenance patterns, types of failures, and improvement strategies to ensure machine reliability and operational efficiency. The research employed observation, interviews with maintenance personnel, and documentation review to collect relevant data. The findings show that the machine experienced multiple failures, mostly related to hydraulic system leaks, PLC programming errors, and component wear such as cylinders, seals, and gear pumps. A significant increase in corrective maintenance activities occurred between August 2023 and April 2024, particularly in February 2024, indicating the need for a more consistent predictive maintenance strategy. The implications of this study highlight that optimized maintenance scheduling and monitoring are essential to reduce downtime, avoid production delays, and maintain product quality. This research is expected to support maintenance decision-making and contribute to the improvement of industrial machine reliability in wind tower manufacturing operations.

The increase in the population of Medan City has a direct impact on the increasing demand for housing and settlements, which is not always in line with environmental carrying capacity and the fulfillment of livable housing standards. Residential buildings contribute significantly to energy and water consumption, as well as environmental degradation, thus requiring a sustainable design approach. This study aims to formulate criteria and principles for the design of simple, livable houses by applying the concept of green buildings. The research method used is descriptive qualitative with a focus on the design of class 1a residential buildings. The study was conducted through a review of relevant regulations and standards, including the Ministry of Public Works and Public Housing's Green Building principles, the GREENSHIP Homes assessment system by the Green Building Council Indonesia, and livable housing indicators from the North Sumatra II Housing Provision Implementation Center. The results of the study show that the application of green building concepts in Small Houses can be realized through proper site management, optimization of natural lighting and ventilation, efficient use of energy and water, sustainable waste and wastewater management, and the selection of environmentally friendly building materials. The application of these principles can produce Small Houses that not only meet livable standards but also contribute to environmental sustainability.

This study aims to comprehensively examine the influence of digital marketing strategies, investment in digital technology, and customer engagement on the business performance of Micro, Small, and Medium Enterprises (MSMEs) with digital transformation as a mediating variable. A case study was conducted on the MSME Es Teh Djanoko Bayat. This research employs a quantitative methodology with a causal design. Data were collected through questionnaires distributed to 350 respondents and analyzed using the SmartPLS version 3 tool. The results indicate that digital marketing strategies and digital technology investment have a positive and significant effect on both digital transformation and performance improvement. Furthermore, digital transformation is proven to have a positive effect on performance. However, while digital customer engagement positively affects performance, it was found to have no significant effect on digital transformation. In conclusion, the effectiveness of digital marketing and technology investment are key drivers in the transformation process and company performance, while customer interaction impacts sales directly without triggering significant operational changes.

rogram pengabdian masyarakat ini bertujuan memperkuat peran orang tua dalam mencegah perilaku bullying pada remaja di Kelurahan Jatibarang, Mijen, Kota Semarang melalui edukasi berbasis pendekatan partisipatif. Kegiatan dilakukan dengan model Participatory Action Research (PAR) yang melibatkan para orang tua, kader atau masyarakat dalam proses pemetaan masalah, edukasi, diskusi, serta evaluasi. Intervensi berupa sesi edukasi parenting, role-play, dan diskusi kasus lokal. Hasil menunjukkan peningkatan pengetahuan, kesadaran, dan kemampuan orang tua dalam mendeteksi serta menangani perilaku bullying, disertai terbentuknya jejaring dukungan komunitas untuk keberlanjutan program. Program ini menegaskan pentingnya kolaborasi komunitas dalam membangun lingkungan aman bagi remaja dan mendorong penguatan fungsi keluarga dalam pencegahan bullying.

Background : The Maternal Mortality Rate (MMR) worldwide reaches 183,000 per 100,000 live births (WHO, 2024). In Indonesia, there were 4,305 reported cases (Ministry of Health RI, 2024), while Central Java Province recorded 315 cases (Central Java Health Office, 2024). In Brebes Regency, there were 54 maternal deaths in 2024 (Brebes Health Office, 2024), and in the Bumiayu Public Health Center area, 2 maternal deaths were recorded (Bumiayu PHC Data, 2024). Objective : To analyze, implement, and provide comprehensive midwifery care for Mrs. A, 25 years old, with anemia in the Bumiayu Public Health Center area in 2025, using the Varney midwifery management approach and the SOAP method. Research Methods : This study used a qualitative descriptive design in the form of a case study. Results : Midwifery care during pregnancy for Mrs.A with anemia was carried out bassed on the mother’s needs. During labor, newborn care, postpartum period, and family planning services, no complications were found. Conclusion: The comprehensive midwifery care provided to Mrs. A with anemia was carried out in accordance with the Standard Operating Procedures (SOP), with both the mother and baby in good condition.

Elevated blood pressure above the normal range is a hallmark of a medical condition known as hypertension. It is estimated that as the population ages, the number of hypertension cases will also increase. If this condition is properly managed early, it can be controlled. Controlling daily eating habits is one of the most effective non-pharmacological methods for lowering blood pressure. Therefore, finding alternative food sources that can naturally lower blood pressure is crucial. Red dragon fruit (Hylocereus polyrhizus), which is high in fiber, potassium, and antioxidants such as vitamins B, C, and E, is one possible option. These nutrients are important for maintaining blood vessel flexibility and controlling hypertension. The purpose of this study was to determine the effect of red dragon fruit juice consumption on blood pressure in the Paku Village Community Health Center (Puskesmas Pembantu) operational area. A single-group pre-experimental design was used in this study. A paired-sample t-test was used to assess the data. Based on the findings, the average systolic blood pressure was 184 mmHg before consuming red dragon fruit juice and decreased to 164 mmHg after the intervention. With a t-value of 23.4, a correlation of 0.96, and a p-value of 0.000 (p < 0.05), this decrease was statistically significant. Meanwhile, the average diastolic blood pressure dropped from 101 mmHg to 84 mmHg, with a correlation of 0.961, a t-value of 18.65, and a p-value of 0.000 (p < 0.05). These results indicate that consuming red dragon fruit juice significantly lowers blood pressure, with an average decrease in systolic pressure of 20 mmHg and diastolic pressure of 17 mmHg.

This community service program aims to enhance the capacity of students, teachers, and educational staff at SMK Negeri 2 Prabumulih in utilizing artificial intelligence (AI) technology as a medium for promoting the excellence of their study programs. The activity was conducted in the form of a two-day workshop attended by 50 participants, consisting of students, teachers, and educational personnel. The workshop materials covered an introduction to AI, the application of AI in digital promotion, and hands-on practice in creating promotional content using AI, such as chatbots, AI-based graphic design, and data analysis. The results indicate a significant improvement in participants’ skills in using AI technology to support study program promotion, which positively contributed to increasing the interest of prospective new students. This workshop provides a tangible contribution to human resource development at SMK Negeri 2 Prabumulih and serves as a replicable model for community service initiatives in other educational institutions.

The purpose of this community service activity is to improve the digital literacy of children at SDN Mranggon Lawang II by teaching them how to find accurate information and know the dangers of hoaxes. In order for children to use technology wisely, they must be taught important digital literacy from an early age. This activity was carried out through interactive lectures and Q&A discussions for seven days in August 2024. In addition to examples of simple false information, the material includes differences of opinion and facts, there were 13 children who participated showing a high level of enthusiasm during the activity. However, there are obstacles regarding language that hinder understanding that can be overcome through communication techniques and visual media. The results of the activity show that children better understand the importance of critical thinking when getting information. This activity is expected to increase knowledge about digital literacy and encourage smart media behavior.

The low effectiveness of student organizational performance in designing and managing structured work programs presents a major challenge to strengthening the leadership culture at MTsN 1 Probolinggo. This community service program aims to enhance students’ managerial and leadership capacities through performance mentoring for the Intra-Madrasah Student Organization (OSIM), based on innovations in learning management. The methods employed include training sessions, workshops, and continuous mentoring, all designed collaboratively with school stakeholders. The activity stages began with a needs analysis and problem mapping, followed by the development of training modules, the implementation of organizational management training, and interactive workshops aimed at developing adaptive and applicable work programs. The proposed solutions encompass strengthening foundational understanding of organizational management, enhancing the role of members in program planning, and facilitating the implementation of OSIM activities that support the creation of an active learning environment. Evaluation was carried out through pre-tests and post-tests to measure comprehension improvement, field activity observations, and assessments of work program achievement. The results indicate significant improvements in participants’ cognitive and practical skills, particularly in the planning, execution, and evaluation of OSIM programs that are now more structured and goal-oriented. In conclusion, this community service activity successfully reinforced student leadership competencies through an innovative approach to managing student organizations, while also promoting the development of a sustainable culture of collaborative work. Based on the outcomes, it is recommended that this mentoring model be replicated in other madrasahs and that OSIM leadership development programs be systematically integrated into extracurricular curricula to ensure the continuity and expansion of the positive impacts achieved

The puring plant (Codiaeum variegatum), which has been known as an ornamental plant, apparently has significant therapeutic potential, supported by the presence of secondary metabolites such as flavonoids, tannins, saponins and alkaloids. Various modern studies report the biological activity of croton leaves, including anti-cholesterol, anti-hyperglycemia, antibacterial effects, and their use in biosurfactant formulations. However, studies on how varying extract concentrations influence bioactivity parameters quantitatively are still limited, especially in the context of dose-response relationships involving many biological parameters in one series of research. Therefore, this research was conducted to evaluate eight bioactivity parameters, namely PSM, SSSP, DSSP, SL, RO, SM, PSL, and ANA at croton leaf extract concentrations of 1%, 2%, and 4%. This research uses a laboratory experimental approach by extracting croton leaves through a maceration method using ethanol, then formulated in three concentration levels. Each parameter was analyzed quantitatively to observe the pattern of changes in biological response to variations in the dose administered. The results showed that most of the PSM, SSSP, DSSP, SL, and PSL parameters showed an optimum response at a concentration of 2%, which indicates that there is a most effective dose point before a decrease in activity occurs at the highest concentration. In contrast, several parameters such as RO, SM, and ANA showed a more fluctuating response, even the ANA parameter gave the highest value at a concentration of 4%, indicating that certain activities require higher compound levels to be achieved. In general, the response pattern found was not linear, but instead formed an optimum curve typical of the bioactivity of plant extracts. These findings confirm that determining dosage is very important in the use of croton leaf extract, both for pharmacological purposes and for the formulation of natural ingredient-based products.

This study aims to analyze the effectiveness of the Family Hope Program (PKH) in alleviating poverty, with a case study focus on Sei Jang Village, Tanjungpinang City. PKH is a social assistance program initiated by the government to improve the welfare of the poor through conditional cash assistance. The reason the researcher chose this title was to determine the extent to which PKH is effective in reducing poverty, especially since data shows a decline in the number of PKH recipients in Sei Jang Village in 2023. This study uses a qualitative approach with a descriptive method, where data is obtained through in-depth interviews, observation, and documentation studies. To measure the level of effectiveness, the theory from (Makmur, 2015) was used, which states that the elements of effectiveness include accuracy in timing, accuracy in calculation, accuracy in measurement, accuracy in decision making, accuracy in thinking, accuracy in carrying out orders, accuracy in determining goals, and accuracy in targeting. The results of the study show that PKH has had a positive impact on reducing the economic burden on poor families, particularly in meeting the educational and health needs of children. However, the effectiveness of this program is still hampered by several factors, such as delays in fund disbursement, participants' lack of understanding of the program's terms and conditions, and minimal assistance from relevant officials. In addition, another challenge in the form of inaccuracy in targeting beneficiaries also affects the overall achievement of the program. These findings indicate that better management and supervision are urgently needed. This study concludes that although PKH contributes significantly to poverty alleviation, improvements in management and supervision are needed to maximize the program's objectives. The proposed recommendations include increasing the capacity of social workers, improving the beneficiary selection mechanism, and strengthening coordination among stakeholders at the local level.

This research discusses Indonesia's national identity in the framework of citizenship using the perspective of Fiqh Siyasah. The background of this research is the importance of integrating Islamic values in strengthening a pluralistic national identity in the midst of the social, political, and cultural dynamics of modern society. The purpose of this study is to examine the relationship between the concept of modern citizenship and the principles of Fiqh Siyasah and its implications for strengthening national identity. The research method used is a qualitative study with a literature analysis approach, which allows the author to explore various classical and contemporary sources related to the concept of citizenship in Islam and its application in Indonesia. The results of the study show that the values of Fiqh Siyasah, such as justice, benefit, and unity, can be a moral and ethical foundation in strengthening Indonesia's inclusive, democratic, and equitable national identity. In addition, its implementation can strengthen the sense of responsibility of citizens in maintaining the stability of the nation. The conclusion of the study emphasizes the importance of collaboration between Islamic thought and national principles to build a sustainable national identity that is adaptive to the changing times.

The 2024 regional elections in Jambi City sparked internal conflict within the Golkar Party when the recommendations of the Regional Representative Council II did not align with the Central Executive Board's decision regarding the mayoral candidate. The tension was successfully resolved through the implementation of procedural leadership based on the party's statutes and regulations, as well as a tiered nomination mechanism. This study aims to understand the role of procedural leadership in restoring solidarity and maintaining organizational stability after a nomination conflict. Using a qualitative approach with case studies, the study collected data through in-depth interviews and documentation with informants selected through purposive and snowball sampling. Data analysis was conducted using the Miles & Huberman model through data reduction, presentation, and conclusion drawing. The results show that procedural mechanisms, the use of surveys, and the exemplary behavior of charismatic figures particularly the chair of the DPD IIplay an important role in alleviating cadre disappointment. This study confirms that procedural leadership is a key instrument in maintaining the solidarity of the Golkar Party and recommends strengthening internal communication and balancing surveys with regional aspirations.

This study aims to describe the process of implementing the Kuru We Fohon Ceremony and to describe the deep meaning contained in the Ritual. The method in this study uses a qualitative method. This Qualitative Approach also aims to gain understanding and describe a complex reality. In qualitative, this research procedure produces descriptive data in the form of written or spoken words based on the behavior of the object being studied. The results of the study are in the form of the first planning stage: the tribal chief will gather all Lulik Atan to plan when the Kuru We Fohon Tradition (taking sacred water) will be carried out. While the implementation stage includes Halaku We Fohon (Renewal) by the tribal chief and other traditional leaders, Kuru We Fohon (Taking Sacred Water) by the tribal chief and brought by one of the traditional leaders into the traditional house, Hatama We Fohon (Giving Entering Sacred Water) the officer who brings the Sacred Water into the traditional house. in the final stage, sprinkling the traditional house using sacred water and distributing Betel Nut (mama rai) to all the Nonot Forenain tribal people. The Kuru We Fohon ritual is deeply sacred, encompassing respect for ancestors and seeking their blessings. This ritual serves not only as a means of strengthening the relationship between ancestors and humans, but also as a means of strengthening cultural values. It teaches the importance of mutual cooperation, courtesy, and morality in social life.  

This research was motivated by the findings of dishonest behavior among SMPN 2 Kalidawir students, such as cheating during exams and dishonesty in daily social interactions. This condition shows that the value of honesty has not developed optimally. Therefore, this study aims to analyze social studies teachers' strategies in instilling honesty in grade VIII students and identify supporting and inhibiting factors in the process. The focus of the research includes two things: (1) teachers' strategies in instilling honesty through social studies learning, especially materials related to social interaction and students' daily lives; and (2) factors that affect the success of teachers in shaping the character of students' honesty. The approach used is descriptive qualitative research with data collection through observation, interviews, and documentation. This method allows researchers to gain an in-depth understanding based on the interpretation of phenomena found in the field. The results of the study show that the strategy of instilling honesty values is carried out in an integrated manner through the example of teachers, habituating honest behavior, and providing positive motivation during the learning process. Teachers also integrate the value of honesty into relevant social studies materials and provide real examples in daily life. Supporting factors for the success of this strategy include consistent teacher examples, a conducive school environment, and targeted and collaborative student program support. However, there are inhibiting factors such as the influence of the environment outside the school, academic pressure, and diverse socioeconomic conditions of students. This research makes an important contribution to strengthening character education through social studies learning at the junior high school level.

Learning is the process of forming behavior or behaviorism and is seen from the cognitive aspect of students, in fact to support the achievement of ideal educational goals with the existing education system in Indonesia. In this research, the author is interested in researching students' cognitive aspects in line with 21st century learning to determine students' critical thinking abilities using the problem based learning model. This type of research is research using a quantitative research approach. The sample in this study was control class VII A students with a total of 13 students and VII B was an experiment with a total of 12 students at Halioam State Middle School, totaling 25 students. Data collection techniques use test questions and documentation, interviews. Data analysis used the independent sample t-test hypothesis test and the N-Gain score test. The results of the research show that the problem based learning model can have an influence on the critical thinking abilities of class VII students at Halioan State Middle School. This is proven by assessing students' critical thinking abilities using a hypothesis test using an independent sample t-test. The result was a 2-tailed sig of 0.000 < 0.05 so that there is an influence of the problem based learning model on Halioan State Middle School students' critical thinking abilitie.

The Effect of the Team Assisted Individualization Type Cooperative Learning Model to Improve Geography Student Learning Outcomes in Grade X Students of Bolan State Senior High School. The background of this study is based on in initial observations by researchers at Bolan State Senior High School on class X.A and  X.B students, X.A Was used as an experimental group by implementing the team assisted invidualization.(TAI) coperatif learning model. The duration of this study, in a week in the form of 2x meetings for one month. The results of the study showed that there was an influence of the implementation of the cooperative learning model of the team assisted individualization (TAI) type on the learning outcomes of geography subjects of class X students of Bolan State Senior High School. Comprehensively, the results were (1) The learning outcomes of experimental class students in the initial test (pretest) showed that the average pre-test score on the Basic Knowledge of Geography material was 56.90 and the learning outcomes of experimental class students in the final test (posttest) showed that the average pre-test score on the Basic Knowledge of Geography material was 81.61. (2) The learning outcomes of the control class in the initial test (pretest) showed that the average pre-test score on the Basic Knowledge of Geography material was 51.24 while the learning outcomes of the control class in the final test (posttest) showed that the average pre-test score on the Basic Knowledge of Geography material was 72.72. Judging from the two trials, it showed that there was an increase in learning outcomes and the average score of the basic knowledge of geography material in the experimental class and the control class.

The Effect of the Team Assisted Individualization Type Cooperative Learning Model to Improve Geography Student Learning Outcomes in Grade X Students of Bolan State Senior High School. The background of this study is based on in initial observations by researchers at Bolan State Senior High School on class X.A and  X.B students, X.A Was used as an experimental group by implementing the team assisted invidualization.(TAI) coperatif learning model. The duration of this study, in a week in the form of 2x meetings for one month. The results of the study showed that there was an influence of the implementation of the cooperative learning model of the team assisted individualization (TAI) type on the learning outcomes of geography subjects of class X students of Bolan State Senior High School. Comprehensively, the results were (1) The learning outcomes of experimental class students in the initial test (pretest) showed that the average pre-test score on the Basic Knowledge of Geography material was 56.90 and the learning outcomes of experimental class students in the final test (posttest) showed that the average pre-test score on the Basic Knowledge of Geography material was 81.61. (2) The learning outcomes of the control class in the initial test (pretest) showed that the average pre-test score on the Basic Knowledge of Geography material was 51.24 while the learning outcomes of the control class in the final test (posttest) showed that the average pre-test score on the Basic Knowledge of Geography material was 72.72. Judging from the two trials, it showed that there was an increase in learning outcomes and the average score of the basic knowledge of geography material in the experimental class and the control class.

This study aims to determine the process of rice field pawning in Bulutellue Village, District of Sinjai Regency while analyzing the causes of rice field pawning. The type of research used is a qualitative descriptive research method that observes by interacting with the main informants, namely pawners because they are the actors in the implementation of Rice Field Pawning and pawn recipients in Bulutellue Village. Data collection techniques used are observation, interviews, and documentation. The data obtained are then processed using data analysis techniques in the form of data reduction, data presentation and conclusion drawing. And also data validation using Member Check. The results of this study indicate that Rice Field Pawning in Bulutellue Village was initially a pawn in the form of a garden then over time changed into a rice field pawning and this has become a tradition. This rice field pawning process can also be used to cover up shame or siri' and this rice field pawning process has some that have verbal agreements and some also have written agreements. There is also one of the customary laws that still applies today and is used as a tradition by the people in Bulutellue Village. The factors causing the occurrence of rice field mortgages in Bulutellue Village are economic factors, for example those related to weddings and education.