Publication Search

This study aims to examine the potential of the Baduy traditional house as a realistic context in mathematics learning, particularly in the material of spatial geometry. The traditional houses of the Baduy people not only function as residences, but also hold cultural values, philosophies, and architectural structures rich in geometric elements. Using a systematic literature review (SLR) approach, this study explores various scientific sources, including journal articles, proceedings, and reference books, that discuss the relationship between spatial elements and the structure of traditional Baduy buildings. This approach was chosen so that the study obtained is comprehensive, directed, and able to illustrate the real contribution of ethnomathematics in learning. The results of the review indicate that the Baduy traditional house contains various forms of spatial geometry that can be clearly recognized, including cuboids, triangular prisms, pyramids, cubes, and cylinders. These elements are reflected in building components such as roofs, walls, floors, support pillars, and traditional household furniture. The visual and functional representation of these spatial geometry has the potential to be a contextual resource that can be utilized by teachers in the mathematics learning process, particularly through the Realistic Mathematics Education (RME) approach. By linking abstract mathematical concepts to local cultural phenomena, students not only gain a better conceptual understanding but also increase their active engagement, motivation to learn, and awareness of their own cultural identity. These findings emphasize the importance of utilizing local wisdom as an ethnomathematics approach that can provide meaningful, contextual learning rooted in the realities of students' daily lives. Through the integration of culture and education, mathematics learning can be more relevant, engaging, and support the preservation of national culture.

Digital image processing is a rapidly developing branch of computer science and has many applications in everyday life. One of the fields that most often utilizes this technique is object detection and color identification in images and videos. This study specifically aims to implement the thresholding method in the HSV (Hue, Saturation, Value) color space to detect three basic colors, namely red, green, and blue, in digital images. The research process begins with uploading images using the Google Colab platform, a cloud-based computing environment that makes it easy for users to run Python programs without requiring additional software installation. After the image is uploaded, the next step is to convert it from the RGB (Red, Green, Blue) color space to the HSV color space. This conversion is important because the HSV color space is more suitable for use in the color segmentation process. The Hue value represents the type of color, Saturation shows the level of saturation, while Value describes the level of brightness. Once the image is in the HSV color space, the next step is to determine the HSV value range for each basic color. This range is determined based on experimental results and references from related literature. Using this range, masking is performed to extract the appropriate pixels so that only the red, green, or blue portions of the image are visible, while the other colors are reduced. The results show that the thresholding method in the HSV color space is capable of detecting primary colors with a good level of visual accuracy, especially in simple images with contrasting backgrounds. The implementation of this program is relatively lightweight, easy to run directly in Google Colab, and does not require high-spec hardware. Therefore, this method is very suitable for use as basic learning material for digital image processing, both for students and novice researchers.

Subcontractor selection is a crucial factor in determining the success of a construction project. The selected subcontractor not only plays a role in expediting the completion of the work but also influences the overall quality, cost, and timeliness of the project. Mistakes in decision-making, such as selecting a less competent subcontractor, can result in delays in completion, increased project costs, and even decreased construction quality. Therefore, a systematic, measurable, and objective method is needed to support the subcontractor selection process. This study aims to implement the Analytical Hierarchy Process (AHP) method as an approach in a decision support system for subcontractor selection. AHP was chosen because it can decompose complex problems into simpler structures by determining criteria weights and comparing alternatives. The criteria used in this study include expertise, work experience, timeliness of work, equipment availability, and bid price. By assigning weights to each criterion, the selection process can be carried out more transparently and measurably. The case study was conducted at PT. Tatha Group, a company engaged in the construction services sector. In this study, AHP was used to prioritize alternative subcontractors to be selected to assist in project implementation. The research results show that the AHP method produces clear, structured results and supports more accurate decision-making. Thus, the application of AHP not only minimizes subjectivity in assessments but also provides accountable recommendations for selecting the best subcontractor for the project's needs.

School laboratories are learning environments that have high potential hazards, both from exposure to chemicals, the use of complex equipment, and other environmental factors. Unfortunately, the application of occupational safety and health (K3) principles in schools is still often ignored, increasing the risk of accidents and occupational diseases. In response to this issue, the S1 Occupational Safety and Health Study Program of the Batari Toja Bone Institute carried out Community Service (PKM) activities which aimed to increase students' understanding of the importance of K3 culture in the laboratory. This activity was held on August 13, 2025 at SMAN 3 Bone by involving students of class XII.F.3 as the main participants. The method of implementing the activity includes filling out an initial questionnaire to measure the level of initial understanding of students, delivering material through lectures and direct demonstrations, and interactive question and answer sessions to deepen participants' understanding. The material presented included identification of potential hazards in the laboratory, procedures for using personal protective equipment (PPE), recognition of K3 signs, and strategies to prevent the risk of work accidents. The results of the evaluation showed a significant increase in students' understanding of aspects of K3, which was shown through the comparison of questionnaire results before and after the activity. Students become more aware of the importance of using PPE, are able to recognize K3 signs, and understand preventive measures in dealing with potential dangers in the laboratory. This activity is expected to encourage the formation of a K3 culture in the school environment, so as to create a safe, healthy, and productive learning atmosphere. In addition, this program is an educational model that can be replicated in other schools as a preventive effort in managing work risks in the educational environment.

This narrative review aims to explore the transformation of occupational health and safety (OHS) in the era of healthcare digitalization. The background highlights the increasing complexity of hospital services and the urgent need to integrate digital innovation into OHS programs. The method used was a narrative review based on 32 articles published between 2020 and 2025, selected through systematic search in PubMed, Scopus, ScienceDirect, and Google Scholar. The findings indicate that digital health technologies, including wearable devices, electronic incident reporting systems, and mobile applications for infection control, significantly enhance the effectiveness of OHS by improving compliance, strengthening safety culture, and reducing hospital-acquired infections and adverse events. Nevertheless, challenges remain regarding infrastructure readiness, digital literacy, and data security. The implications of this study suggest that hospitals and policymakers should consider digital-based OHS strategies as an integral part of patient safety improvement and quality health services.

This study aims to systematically review the effectiveness of occupational health and safety (OHS) programs in improving patient safety in hospitals. The background of this study highlights the importance of occupational safety as an integral part of healthcare quality, where failures in OHS management may not only affect healthcare workers but also directly impact patient outcomes. The method used was a systematic literature review guided by the PRISMA approach, covering articles published between 2020 and 2025. A total of 28 articles were analyzed after a rigorous screening process from 412 initial records across multiple databases. The findings reveal that OHS programs contribute to patient safety through structured training and education, transparent risk management and incident reporting systems, and the establishment of a strong safety culture. These efforts have been shown to reduce adverse events, hospital-acquired infections, and medical errors. The implications of this review highlight that strengthening OHS programs should be considered a strategic component in hospital management to achieve sustainable improvements in patient safety and quality of care.

Oral hygiene in fixed orthodontic patients is a significant challenge because the presence of brackets and archwires easily traps food debris, making it difficult to maintain dental health. A preliminary survey at Deneira Dental Clinic, South Jakarta, found that some patients using fixed orthodontics still have poor dental hygiene, characterized by debris and food residue adhering to the brackets. Interviews also revealed that most patients do not understand proper toothbrushing techniques for maintaining oral health. This study aimed to analyze the relationship between toothbrushing techniques and the oral hygiene status of fixed orthodontic patients at the clinic. Using a cross-sectional design involving 33 respondents through accidental sampling, data were collected using questionnaires and clinical examinations using the OHI-S index, then analyzed using the Chi-square test. The results showed that the majority of respondents using the combination toothbrushing technique had moderate oral hygiene, while in the roll technique group, the number of patients with moderate hygiene was also higher. These findings confirm that the toothbrushing technique used does not fully achieve optimal oral hygiene, although most patients still fall within the moderate category. Therefore, interventions in the form of comprehensive education from clinics regarding proper oral care methods, including the use of additional cleaning aids such as dental floss or mouthwash, are needed. Furthermore, patients are expected to be more consistent in maintaining daily oral hygiene. To strengthen these findings, further research is recommended exploring other factors, such as brushing frequency, toothbrush type, and diet, that may influence oral hygiene in orthodontic patients.

This study aims to conduct an in-depth study of various effective classroom management strategies at the elementary school level. Classroom management plays a crucial role in supporting the smooth running of the teaching and learning process, as a successful learning process is greatly influenced by a conducive, orderly, and enjoyable classroom environment. Teachers serve not only as transmitters of material but also as classroom managers tasked with creating a learning climate that supports active student engagement. Good classroom management is believed to minimize disruptions, improve discipline, and foster student motivation. The research method used is library research, reviewing various academic sources such as books, scientific articles, research journals, and relevant previous studies. This approach was chosen to obtain a comprehensive overview of classroom management strategies that have been proven effective in educational practice in elementary schools. The results of the study indicate that effective classroom management strategies encompass several key aspects. First, the development of clear and mutually agreed-upon classroom rules so that students understand the boundaries of expected behavior. Second, the use of varied learning methods to accommodate different student learning styles. Third, the provision of positive reinforcement as a form of appreciation for student behavior and achievement. Fourth, establish good communication between teachers and students to build mutual trust and increase active participation. Implementing these strategies has been proven to improve discipline, reduce learning barriers, and create a classroom environment conducive to the optimal development of children's potential. These findings are expected to serve as a practical reference for teachers, schools, and related parties in designing more effective, innovative, and sustainable classroom management.

This study aims to determine: (1) the intensity of playing online games among students at SMP Negeri 16 Singkawang, (2) the level of emotional intelligence among students at SMP Negeri 16 Singkawang, and (3) the relationship between the intensity of playing online games and emotional intelligence among students at SMP Negeri 16 Singkawang. This research uses a quantitative approach with a causal associative research design. The population of this study consisted of students from classes VII D, VIII D, and IX D at SMP Negeri 16 Singkawang, totaling 105 students, with a research sample of 105 students selected using a total sampling technique. Data analysis to determine the intensity of playing online games and emotional intelligence among students was carried out using descriptive statistical analysis. Meanwhile, to analyze the relationship between the intensity of playing online games and emotional intelligence, the Pearson product-moment correlation technique was used. The results of the data analysis show that: (1) the level of online game playing intensity among students at SMP Negeri 16 Singkawang falls into the low category (36.87), (2) the level of emotional intelligence among students is in the high category (112.8), and (3) there is no significant relationship between the intensity of playing online games and emotional intelligence among students, with an R value of -0.124. Therefore, it can be concluded that there is no relationship between the intensity of playing online games and the emotional intelligence of students at SMP Negeri 16 Singkawang. In conclusion, the higher the intensity of playing online games, the lower the emotional intelligence of students.

This study aims to: (1) determine the level of self-awareness among ninth-grade students at SMP Negeri 16 Singkawang; (2) determine the career planning of ninth-grade students at SMP Negeri 16 Singkawang; (3) find out whether there is a significant relationship between self-awareness and career planning among ninth-grade students at SMP Negeri 16 Singkawang. This research employs a quantitative approach with a causal associative research design. The population of this study consisted of 128 ninth-grade students at SMP Negeri 16 Singkawang, with a sample of 56 students selected using a simple random sampling technique. Data collection was carried out using measurement techniques with data collection instruments in the form of self-awareness and career planning questionnaires. The data analysis technique used was statistical analysis and Pearson product-moment correlation. The results of data analysis show that: (1) the level of self-awareness among ninth-grade students at SMP Negeri 16 Singkawang is in the high category (79%); (2) the level of career planning among ninth-grade students at SMP Negeri 16 Singkawang is in the high category (69%); (3) there is a relationship between the self-awareness variable and the career planning variable, with a low degree of correlation (correlation coefficient = 0.367), and the relationship is positive. A positive relationship means that the higher or better the self-awareness variable, the higher or better the career planning variable, and vice versa, the lower the self-awareness variable, the lower the career planning variable.

This research employs a qualitative library research method to examine the crucial role of investment in the renewable energy sector in sustaining national economic development in the globalization era. In the current global context, the transition toward environmentally friendly energy sources is not only a necessity but also a strategic priority for many countries, including Indonesia. Conventional reliance on fossil fuels, which are increasingly limited and harmful to the environment, has pushed policymakers and stakeholders to seek sustainable alternatives. Renewable energy sources—such as solar, wind, hydro, and bioenergy—are widely recognized as long-term solutions to reduce environmental degradation and carbon emissions. Investment in the renewable energy sector does not merely contribute to environmental preservation but also carries significant socioeconomic benefits. It has the potential to generate new employment opportunities, encourage technological innovation, and strengthen national energy security. These impacts create a multiplier effect on the economy, thereby supporting inclusive growth and sustainable development. Furthermore, renewable energy investment can enhance national competitiveness and resilience in facing global energy transitions, as well as align with international commitments to climate change mitigation. This study, through a comprehensive review of scholarly journals, reports, and other credible sources, finds that the renewable energy sector is instrumental in realizing a sustainable and globally adaptive economic structure. Nevertheless, the success of this transition depends heavily on government efforts to optimize policies and regulatory frameworks that are supportive, transparent, and attractive to both domestic and international investors. Therefore, it is imperative for the government to strengthen investment incentives, streamline bureaucratic procedures, and promote public-private partnerships. The findings highlight that renewable energy investment is not only an environmental necessity but also a key driver of long-term national economic sustainability.

The crime of fraud is a form of crime that not only causes material loss, but also has an impact on the intangible losses experienced by the victim, such as loss of sense of security, trust, and social stability. Fraud also has the potential to disrupt public order and reduce public trust in the legal system. Therefore, law enforcement against this criminal act is an important aspect in maintaining legal certainty and a sense of justice. This study aims to analyze the form of law enforcement against perpetrators of fraud crimes by focusing on the factors that cause perpetrators to commit fraud and the judge's considerations in imposing judgments. The case studied refers to Decision Number: 99/Pid.B/2024/PN.Tjk. The research method uses a normative juridical approach, by examining laws and regulations, legal doctrines, and case studies through the analysis of court decisions. The results of the study show that the legal provisions regarding fraud have been regulated in Article 378 of the Criminal Code (KUHP). However, implementation in the field is often constrained by limited evidence, the increasingly diverse modus operandi of perpetrators, and low legal awareness of the public. The judge in considering the verdict not only pays attention to the juridical aspect, but also takes into account the social and psychological impact on the victim. As a recommendation, this study emphasizes the importance of increasing coordination between law enforcement officials to strengthen the investigation and evidence process. The use of digital technology, especially in the collection of electronic evidence, is a strategic step in dealing with modern fraud modes. In addition, legal education to the public needs to be improved to foster legal awareness and prevent fraud crimes in the future.

The research that has been conducted is entitled "Development of Adventure Comic Media to Improve Fantasy Story Writing Skills of Class VII MTs Negeri 2 Medan", the background of this research is the low writing ability of students, which is caused by difficulties in developing ideas and the use of conventional learning methods. This problem encouraged researchers to develop learning media in the form of comics as an innovative alternative to support more interesting and effective learning. This research uses the ADDIE development model which consists of five stages, namely analysis, design, development, implementation, and evaluation. Data were obtained through questionnaires, interviews, observations, tests, and documentation, and involved a validation process by material experts, media experts, and linguists. Furthermore, trials were conducted on students of class VII-G as an experimental class. The results of the study showed that the developed adventure comic media was classified as very feasible, practical, and effective. The validation results by three experts showed that the media expert gave a score of 95% (after revision), the material expert 98.33%, and the linguist 88%. In addition, user responses to the media were also very positive. Students in class VII-G gave an assessment of 94,52%, while the teacher gave an assessment of 97.14%. All assessment results are included in the very practical category. In terms of effectiveness, pretest and posttest tests were conducted to measure the improvement of students' writing skills. The results of the effectiveness trial were analyzed using the N-Gain value. In class VII-F (control class), the N-Gain score was 48.66%, while in class VII-G (experimental class) it was 68.35% with a fairly effective category. These results indicate that adventure comic media is quite effective in improving students' fantasy story writing skills. Thus, adventure comic media can be used as an alternative learning media that is interesting, easy to understand, and able to increase students' motivation and writing skills, especially in fantasy story text material.

This study aims to determine the effect of group guidance services with role-playing techniques on the interpersonal communication skills of seventh-grade students at MTs Nurus Salam Deli Tua. Interpersonal communication skills are crucial for adolescents to interact effectively with their social environment. This study employs a quantitative approach with a quasi-experimental method in the form of a one-group pretest-posttest design. The population of this study consisted of 65 students, with a sample of 10 students selected purposively based on the results of initial observations. The instrument used was an interpersonal communication questionnaire that had been tested for validity and reliability. Data analysis was performed using a t-test. The results showed a significance value of 0.000 < 0.05, indicating a significant effect of group guidance services with role-playing techniques on students' interpersonal communication skills.

This study aims to analyze the influence of hard skills and soft skills on job readiness through self-efficacy as a mediating variable in students at the Faculty of Economics and Business, Yogyakarta State University. The background of the study is rooted in the increasing demands of the job market, which emphasize not only technical competence but also interpersonal skills and individual confidence in their own capabilities. As the world of work becomes increasingly competitive, the ability to balance technical skills with psychological readiness becomes a crucial factor. This study employed a quantitative approach with descriptive analysis and path analysis. A total of 229 respondents were selected using a two-stage random sampling method to ensure adequate representation. The data were analyzed using SmartPLS to test the validity, reliability, and fit of the structural model. The results revealed that hard skills had a significant but negative effect on job readiness, while soft skills showed a positive but statistically insignificant effect. Both hard and soft skills were shown to have a positive and significant effect on self-efficacy, with self-efficacy having a significant effect on job readiness. Further findings indicate that self-efficacy mediates the relationship between hard skills and job readiness, but not the relationship between soft skills and job readiness. Overall, this research emphasizes the importance of integrating hard skills, soft skills, and self-efficacy in building student job readiness. The implication is that universities need to design curricula and student development programs that not only strengthen technical competencies but also foster interpersonal skills and self-confidence so that graduates can compete in a dynamic job market.

This study focuses on the symbolic meanings embedded in the use of figurative language in the poetry anthology Selamat Menunaikan Ibadah Puisi by Joko Pinurbo. The research utilizes a descriptive qualitative approach, with semiotic analysis serving as the theoretical foundation. The purpose of this study is to examine how the figurative language used in the poems contributes to conveying deeper symbolic meanings, beyond their role as mere rhetorical devices. The findings of this research reveal that the figurative language within the poems plays a significant symbolic role in expressing complex themes such as inner suffering, memories, identity, alienation, and the quest for the meaning of life. Symbols like 'storm,' 'refrigerator,' 'dusk,' 'window,' 'door,' 'river,' and others are employed to represent abstract concepts, providing a more nuanced understanding of the human experience. The study identifies various types of figurative language, including metaphor, simile, personification, hyperbole, synecdoche, paradox, and irony. Each of these elements serves to enrich the meaning of the poems, adding layers of depth to the interpretation and enhancing the aesthetic experience for the reader. Through these figurative expressions, the poet effectively invites the reader to engage with both the emotional and intellectual dimensions of the poetry. This research emphasizes how Joko Pinurbo's use of figurative language transcends its traditional ornamental function, making it a powerful tool for conveying complex symbolic and existential themes. By analyzing the symbolic meanings in the poems, this study contributes to a deeper appreciation of the interplay between language, meaning, and emotion in contemporary Indonesian poetry.

This study aims to deeply examine the role and impact of AI implementation in the B2B sales process, including implementation challenges. The method used is a qualitative approach with descriptive studies, through a literature review of scientific journals, industry reports, and relevant previous studies. The analysis results show that the application of AI in B2B sales not only improves the accuracy of marketing strategies and lead conversion, but also strengthens the concept of value co-creation through collaboration between salespeople and AI systems. Technologies such as machine learning, predictive analytics, and NLP-based chatbots have been proven to accelerate sales cycles, expand service reach, and increase productivity by up to 30%. However, implementation challenges remain, including limited digital infrastructure, a lack of competent human resources, and organizational resistance to technological transformation. Therefore, optimal AI integration requires institutional readiness, adaptive strategies, and continuous investment in technology and human resource development. These findings provide theoretical and practical contributions to the development of AI-based B2B sales strategies, particularly in the context of the digital industry in Indonesia. Furthermore, the application of AI in B2B sales also opens up new opportunities for service personalization. With the support of real-time data analysis, companies can better understand the specific preferences and needs of their business partners. This enables the development of more targeted communication strategies and the enhancement of long-term relationships with business customers. AI also plays a role in reducing human error through automated systems that can validate data, provide predictive recommendations, and support faster and more accurate strategic decision-making. Furthermore, the adoption of AI in B2B requires clear regulations and governance, particularly regarding ethical data use and information security. Companies must be able to balance the use of technology to increase efficiency with the protection of privacy and consumer rights.

This study aims to describe the social transformations found in the literary aspects of the Advanced Indonesian Language Textbook for grade 11 and analyze its relationship to the construction of the Pancasila Student Profile (P5). The main focus of this study is to examine how the literary works presented in the textbook function not only as a medium for language learning but also as a vehicle for character development and social understanding for students. This study uses a descriptive qualitative approach with sociological literary analysis techniques, where data is obtained from excerpts from poetry, short stories, and plays that depict social change. The results indicate that the social transformations reflected in these literary works are divided into two main forms: collective behavior and social movements. Collective behavior is demonstrated through themes of fashion and fashion, urban legends, and the phenomenon of mass hysteria, which implicitly depict social conflict, class inequality, and the dynamics of societal culture. Meanwhile, social movements are depicted in the narratives of characters who fight for change against norms, traditions, and social structures that limit freedom. This representation demonstrates resistance, critical awareness, and a drive towards a more just and equal life. The findings of this study are closely related to the dimensions of the Pancasila Student Profile, such as critical reasoning skills, a spirit of mutual cooperation, an attitude of upholding social justice, and independence in thought and action. Therefore, it can be concluded that literary works in Indonesian language textbooks not only present aesthetic value and literary appreciation, but also serve as an effective means of instilling national values and supporting the formation of student character in accordance with the vision of Pancasila.  

Early character education plays a fundamental role in shaping a generation that is not only intelligent but also physically healthy, emotionally balanced, and morally responsible. The cultivation of these values from an early age is crucial to equip children with the resilience needed to face various social challenges in the future. This community service activity was designed to increase awareness among elementary school students regarding three critical issues: the dangers of drug abuse, the practices of bullying, and the detrimental impact of corruption. The program was conducted at SDN 1 Citeluk with the participation of approximately 80 students from grades IV to VI. The educational materials were delivered through an interactive approach combining lectures, group discussions, role-playing, and quizzes. This approach was selected to ensure that the learning process was enjoyable, engaging, and easily understood by children at the elementary school level. During the sessions, students were introduced to the basic concepts of drugs, their harmful effects on health and life, and the importance of avoiding them. Additionally, the program emphasized identifying the various forms of bullying—whether physical, verbal, or social—and encouraged students to develop empathy and mutual respect. Another important aspect addressed was corruption, where students were guided to recognize the value of honesty and integrity through relatable examples in daily life. The results of the activity revealed that students were able to clearly understand the dangers of drugs, recognize the different forms of bullying, and provide examples of honest and moral behavior. This indicates that early character education delivered through interactive and participatory methods can effectively enhance children’s comprehension of healthy and moral values. It is expected that similar programs can be carried out sustainably in elementary school settings as part of continuous character-building efforts to support the development of a responsible and ethical young generation

Child marriage remains a serious problem in Indonesia despite the revision of the Marriage Law, which raised the minimum age for marriage to 19 for both men and women through Law No. 16 of 2019. This practice remains widespread, especially in rural areas with a high prevalence due to economic and cultural factors, the existence of marriage dispensation mechanisms, and low legal literacy. The phenomenon of child marriage has multidimensional impacts, including reproductive health risks, high school dropout rates, low quality human resources, economic vulnerability, and psychological problems that can ultimately lead to high divorce rates and intergenerational structural poverty. Through Community Service Activities (PKM), prevention efforts are carried out by providing legal education and outreach regarding the risks of early marriage. Methods used include lectures, presentations, modeling, role plays, and small group discussions involving teenagers, parents, traditional leaders, and religious leaders. The results of the activities showed a significant increase in legal understanding, where 85% of participants were aware of the minimum age for marriage according to the latest regulations. Furthermore, there was increased awareness of the negative impacts of child marriage and a growing commitment from community leaders to continue ongoing outreach. The conclusion of this activity confirmed that marriage law education is an effective strategy in raising public awareness. However, preventing child marriage cannot rely solely on legal outreach; it needs to be strengthened through cross-sector collaboration, integration of materials into the school curriculum, family economic empowerment, and strengthening the role of religious and traditional leaders in shaping social opinion. Therefore, efforts to prevent early marriage require a more holistic, participatory, and sustainable strategy to protect children's rights and realize the development of a quality future generation.