Universitas Ahmad Dahlan: UAD Scientific Journal
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Application of Natural Dyeing Technology through Eco-print for Eco-Friendly Textile Production in the Bantul Region
Full text linkBackground: Bantul Regency in Indonesia has strong potential to develop a sustainable creative economy through local crafts. However, many MSMEs still use synthetic dyes that harm the environment. This program aimed to introduce Eco-print, a natural dyeing technique using local leaves and flowers.
Contribution: The initiative raised awareness about sustainable production, built technical skills, and encouraged home-based creative enterprises. It supported the community in adopting local resource-based innovations while promoting environmental responsibility and cultural expression.
Method: This program using a Community Development approach, with six stages: needs assessment, collaborative planning, Eco-print training, mentoring, and evaluation. Training activities included plant identification, motif design, and natural dye fixation, conducted with the KSS Berkah Bersama community.
Results: Post-training assessments showed a significant improvement in knowledge and skill, with test scores increasing from 40–50 to 80–90. Participants produced eco-friendly tote bags and expressed interest in continuing independent production and marketing efforts.
Conclusion: The program effectively built sustainable textile skills, empowered community members through practical innovation, and supported inclusive local economic development rooted in environmental values and cultural identity
An Analysis of UAV Security and Privacy Concerns of Communication Systems
Full text linkWireless communication is one of the fastest-growing research fields, with Unmanned Aerial Vehicles (UAVs) increasingly deployed as mobile router points in high-traffic areas such as bus stations, metro stations, and airport terminals to address connectivity challenges. However, despite their utility, UAVs face significant security and privacy risks. This paper presents a comprehensive analysis of these vulnerabilities through a systematic four-level classification: sensor, communication, software, and hardware. For each level, we examine (1) common weaknesses exploitable by malicious actors, (2) potential threats to civilian UAV applications, (3) active and passive attacks compromising security and privacy, and (4) possible countermeasures to mitigate such risks. Additionally, we summarize key findings on UAV security and privacy issues and highlight critical unresolved challenges. Finally, we propose future research directions, including the use of fuzzy logic to optimize drone routing by dynamically relocating UAVs to low-activity zones based on fuzzy rule-based decisions
Spiritual Leadership: Theory and Practices in Schools (a Literature Review)
Full text linkLiterature reviews on spiritual leadership lack research, particularly those conducted in the school context between 2020 and 2024. This article explores and reviews the theory and practices of spiritual leadership in schools. The articles used in this literature review were obtained through Google Scholar by entering the keywords "spiritual leadership," "principal leadership," and "school”, with 10 articles selected for further analysis relevant to the key words. Based on the literature review results, theoretically, in a school context, spiritual leadership can be defined as a model of leadership that intrinsically motivates followers to cultivate vision, hope/faith, and altruistic love that enable followers, including teachers, to enhance their psychological well-being. Practically, (1) teachers' professional well-being is positively impacted by spiritual leadership; (2) principals' performance, students' accomplishments, or academic success are positively impacted by spiritual leadership; (3) organizational citizen behaviors are positively impacted by spiritual leadership. Due to its important impacts, spiritual leadership needs further research to get empirical data in the school context
The Principal as a Manager: Improving Primary School Quality
Full text linkBackground. This study aims to describe the principal’s managerial role in improving the quality of education at SDN 2 Srimulyo, Musi Rawas Regency, and to identify the supporting and inhibiting factors influencing its implementation. Methods. A qualitative descriptive method, with data collected through interviews, observations, and document analysis. Participants included the principal, teachers, school committee members, and students. Results. The findings reveal that the principal engages in data-driven planning, enhances teacher competencies through professional development programs, optimizes school resources, and promotes student character education. Key supporting factors include visionary leadership, active stakeholder involvement, and technology integration in school administration. However, significant challenges include limited financial resources, low teacher participation in decision-making, and inadequate infrastructure. Conclusion. This study underscores the critical role of the school principal in strategic and collaborative management to improve the quality of primary education
The Relationship Between Cotton Bud Use and The Incidence of Cerumen Impaction Among Patients at The ENT Polyclinic of PKU Muhammadiyah Bantul Hospital
Full text linkCotton buds are commonly used to clean ears, although improper use can be harmful to ear health by causing cerumen impaction. Cerumen is a natural substance that normally exits the ear canal on its own but can accumulate due to cotton bud use, leading to hearing problems. This study aims to examine the relationship between cotton bud use and the incidence of cerumen impaction in patients at the ENT Polyclinic of PKU Muhammadiyah Hospital, Bantul, considering the high prevalence of this condition in Indonesia. This research used a cross-sectional design and collected data through questionnaires from 65 patients at the ENT clinic. The data were analyzed using SPSS 25 with chi-square and Fisher’s exact tests. Results showed that 86.2% of patients used cotton buds up to 2/3 of the inner ear canal. There was no significant relationship between the depth of cotton bud use and the incidence of cerumen impaction (p = 0.483). However, there was a significant relationship between the frequency of cotton bud use (> 1 time a week) and cerumen impaction in both ears (p = 0.032). Patients who frequently used cotton buds had a higher incidence of cerumen impaction compared to those who used them rarely. In conclusion, there is a relationship between the frequency of cotton bud use and the incidence of cerumen impaction
The Problem of the Implications of the Execution of the Constitutional Court's Decision as Judicial Making in Realizing Legal Certainty
Full text linkFrom a normative-legal perspective, decisions of the Constitutional Court are deemed final and binding from the moment they are pronounced in a public plenary session. However, in practice, the implementation of Constitutional Court decisions often sparks controversy within Indonesia's Constitutional System. Building on this, the author is interested in conducting further research on the issues surrounding the execution of Constitutional Court decisions concerning the position of the Constitutional Court as a judicial maker and efforts to optimize the implementation of Constitutional Court decision execution to create legal certainty. This research employs a normative juridical method, which involves correlating library research with relevant legislation to obtain data on the problems in the implementation of Constitutional Court decision execution and solutions to overcome the barriers. The analysis method used is descriptive qualitative. The results of this study indicate that there are factors influencing the implementation of Constitutional Court decisions, including the limited authority of the Constitutional Court, the absence of specialized enforcement agencies, the lack of implementation timeframes, the insufficient consequences for violating decisions, and the potential increase in compliance costs. Efforts to optimize the execution of Constitutional Court decisions to create legal certainty include revising relevant laws to grant greater authority to the Constitutional Court and establishing enforcement units to ensure institutional compliance with Constitutional Court decisions.
Keywords: Issues; MK decision execution, Legal Certaint
Analysis of Legislation and Regulations on the Fulfillment of Restitution Rights for Sexual Violence Victims in Indonesia
Full text linkSexual violence considers as criminal acts that harm the victim tremendously, in line with that Indonesian government regulates the granting of rights in several legislative provisions for the victims, one form of which is restitution. However, restitution has not been effectively implemented, as evidenced by several court decisions that have not yet included restitution for victims of sexual violence. Therefore, the purpose of this research is to determine how legislative provisions regulate the mechanism for granting restitution and to find a legislative provision that can provide certainty for the fulfillment of restitution rights for victims of sexual violence. The research method used in this study is normative, with a legislative approach that is then analyzed by describing the data that has been obtained. The data collection technique used in this study is to analyze the articles in the legislative provisions regarding restitution. The results of this study indicate that the most ideal legislative provision to grant restitution rights to victims of sexual violence is Law Number 12 of 2022 concerning Sexual Violence, in which this provision provides certainty and overall justice to victims in obtaining their restitution rights
Analisis Strategi Marketing Syariah Dalam Meningkatkan Jumlah Nasabah Pada Produk OTO Syariah di PT.Mandiri Utama Finance Jember
Full text linkPenelitian ini bertujuan untuk mengetahui bagaimana analisis strategi marketing Syariah dalam meningkatkan jumlah nasabah pada produk OTO Syariah di PT.Mandiri Utama Finance Cabang Jember. Penelitian ini menggunakan jenis penelitian kualitatif dengan pendekatan deskriptif. Penelitian ini fokus membahas tentang analisis strategi marketing Syariah dalam meningkatkan jumlah nasabah pada produk OTO Syariah di PT.Mandiri Utama Finance cabang Jember. Metode pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi. Sedangkan analisis data menggunakan analisis data kualitatif. Hasil penelitian mengetahui bahwasanya analisis strategi marketing Syariah dalam meningkatkan jumlah nasabah pada produk OTO Syariah di PT.Mandiri Utama Finance cabang Jember telah dilaksanakan sesuai dengan ketentuan pada PT.Mandiri Utama Finance serta dengan berbagai strategi yang dilakukan oleh CMOS dalam memasarkan produknya yakni dengan mengadakan sebuah event marketing serta melalui media social dan juga diketahui bahwasanya keunggulan dan juga kelemahan dari produk OTO Syariah yakni dari keunggulan utamanya yaitu margin yang rendah serta Flat Rate dan kelemahannya yakni minimnya masyarakat yang belum mengetahui adanya produk OTO Syariah karena tergolong dalam produk baru
Multicollinearity problem-solving with Jackknife Ridge Regression: A case study on slum conditions in Bone Bolango
Full text linkSlum conditions in Indonesia, particularly in Gorontalo Province's Bone Bolango District, are a significant challenge to sustainable development. This research aims to identify the key factors contributing to slum conditions in the strategic economic areas of Kabila, Suwawa, and Tilongkabila using Jackknife Ridge Regression (JRR) analysis to address multicollinearity and overfitting issues. Data from the Regional Development Planning Board (BAPPEDA) Bone Bolango District's 2023 document was used, with a sample of 40 urban villages and villages. The result showed that there is a high collinearity between two independent variables, necessitating the use of JRR. The JRR model identified seven independent variables significantly related to slum value. The regression model explained 83% of the variability in slum conditions. This study provides methodological depth through the JRR framework, which enables accurate slum analysis where traditional models (like OLS) tend to fall short. It emphasizes the need for Bone Bolango to prioritize its policy initiatives by focusing on the seven independent variables. Additionally, the framework demonstrates scalability, making it adaptable to other Indonesian provinces that face similar challenges with slum data
Comparing the performance of DTID3 and DTID3-Smote methods in predicting the rain events with unbalanced classes
Full text linkPrediction of rainfall events in a region is important for many aspects of life. However, the majority of datasets that predict rainfall events have an unbalanced distribution of observations in their classes, including the Prabumulih city dataset, South Sumatra. DTID3 provides very satisfactory performance in many cases of prediction, while the Smote technique is useful for balancing the distribution of data classes. This study aims to compare the performance of the DTID3 and DTID3-Smote methods in predicting rainfall events in Prabumulih City. The main contribution of this study compared to previous studies is that the DTID3 and Smote methods are used together to predict rainfall events, especially in Prabumulih City. Using training data from 2017-2022 and test data from 2023, the results show that the DTID3-Smote method has a better performance measure than the decision tree method in predicting rainfall events in Prabumulih City. In the decision tree method, the accuracy, precision, recall, specificity, and f1-score metrics are 73.56%, 81.91%, 50.94%, 91.22%, and 62.81%, respectively. In the decision tree-SMOTE method, the values are respectively 74.66%, 82.61%, 53.44%, 91.22%, and 64.9%