Publication Search

This study examines passenger service procedures on the KM Gunung Dempo at PT PELNI's Sorong Branch, specifically related to the efficiency of the embarkation and disembarkation processes. This study was motivated by operational constraints such as long queues, limited terminal facilities, and low staff productivity. Using a qualitative descriptive method with a quantitative approach, data was collected through observation, interviews, and documentation. Analysis was conducted by calculating time efficiency and service productivity. The results revealed a time efficiency level of 66.7% (categorized as inefficient), where the actual time reached 180 minutes from the standard of 120 minutes. In addition, staff productivity was only 0.73 passengers/minute, still below the ideal standard (≥ 1 passenger/minute). The main inhibiting factors include a lack of personnel, a manual ticket verification system, minimal terminal facilities, and weak inter-agency coordination.

This research is purposely conducted to evaluate and compare the effectiveness, efficiency, applicability  and appropriateness of modern firefighting systems installed on board ships. As a result, the review attempt to  ascertain the significance of firefighting systems on ships in terms of their safety, types, structure, principles as  well as installations. In this way, the review tries to justify the importance of these systems on board ships. The design of this survey revolves around three basic elements that incorporate the complete firefighting  procedure. These components include: modern technology of firefighting, different types of systems that are  used on board ships and people traits in terms of drilling, firefighting training to deal with any incident of fire.  In the previous decade, the globe has experienced massive destructions, harms and injuries resulting from fire incidents on ships. This has triggered and ignited enhanced fabrication and staging of new practices,  technologies and inventions aimed at efficiently deal with fire incidents so as to support the safekeeping and  reliability on these fire systems on board ships. Equally, through this technological enhancement, the  firefighting systems have been designed to facilitate rapid detection capable of differentiating between real  smokes or flames indicators in case of a fire event on board ship. In recent times, these technological  developments have been viewed as strategies that help ship owners to ensure better protection of the crew’s life,  ship’s inventories as well as minimising on the possible losses that occur as a result of fire events on board ship.  Therefore, with the review of the recent or latest methods and technologies for speedy fire detection on ships,  the review demonstrates enhancement attributes, features and qualities of these new systems. Additionally, the  paper critically evaluates the components of these firefighting systems, as well as looking at their competences,  capabilities, benefits and applicability on board ships.

In this case, it refers to the purpose of the content in this final assignment, namely by compiling a schedule for the Implementation of KM.Mutiara Ferindo 5 Ship Maintenance during the docking process at the PT.PAL Indonesia shipyard. Making a schedule includes what components are repaired while the ship is in the shipyard, making a schedule for managing ship maintenance that has been carried out at the shipyard. The data used in this thesis is data from PT.Antosim Lampung Pelayaran Surabaya and the researcher himself. The type of data used in this study is Primary data, in this Primary data the researcher will obtain data obtained directly from the statements of the workers who will be related to the problem being studied and the results of questionnaires distributed to several employees related to this study. In the implementation of repairs, there is a list of jobs that show how many work items must be done. So this list of jobs has been approved to be carried out in the ship repair process. The repair work of the KM. Mutiara Ferindo 5 ship which carries out planned repairs both at the shipyard and when the ship anchors at sea carries out technical and economical maintenance. Repair work on RO-RO vessels involves extensive maintenance, as determined by the ship's office and authorized crew members. The repair work on the KM Mutiara Ferindo 5 was well-planned, including safety equipment and components that play a crucial role in the smooth operation of the ship (maintenance of the entire engine room, deck, safety equipment, and maintenance of the ship's interior and exterior). An economic system was implemented to estimate the remaining funds after maintenance at the shipyard.

The development of digital technology has brought about significant changes in the way society constructs identity and interprets culture. This study aims to examine how cultural literacy and social media use influence each other in the process of cultural transformation in Indonesia. The research was conducted using a qualitative descriptive approach through a review of various relevant literature sources. The results indicate that the flood of unfiltered digital information often leads to misunderstandings, shifts in cultural values, and the weakening of local identity. On the other hand, social media continues to provide significant opportunities to preserve traditions and promote local culture through various forms of digital content. This study also found that digital literacy including the ability to think critically, understand visual context, and assess the credibility of information is key to society's wise use of social media. The younger generation plays a crucial role in this process as they are the largest users of social media and the primary producers of cultural content. The synergy between cultural literacy, digital literacy, and responsible use of social media plays a role in guiding the nation's cultural transformation in a more positive direction.

This study examines how integrating local ecological wisdom and eco-literacy education fosters environmental awareness, behavioral transformation, and health outcomes among Indonesian primary school students. The research responds to the ecological paradox of rapid technological growth amid worsening environmental degradation, where youth eco-literacy remains below 45%, indicating a gap between environmental knowledge and sustainable action. The study aims to develop a culturally responsive model of sustainability education that connects environmental ethics, cultural identity, and public health. Using a qualitative case study design, the research was conducted at SD Islam Kreatif Mutiara Anak Sholeh, Sidoarjo, East Java, from July to August 2025, involving 60 students and six teachers. Data were collected through semi-structured interviews, observations, and document analysis. Four major themes emerged: (1) cultural narratives as catalysts for environmental awareness, (2) eco-literacy as experiential and behavioral transformation, (3) collaborative learning as collective environmental agency, and (4) eco-health as psychosocial and physical well-being. Findings show that integrating Majapahit-era ecological values and local storytelling into eco-brick and composting projects enhanced students’ responsibility, cooperation, and emotional balance. The study synthesizes Eco-pedagogy, Constructivism, and Eco-health frameworks into a Culturally Responsive Eco-Health Pedagogy, demonstrating that sustainability learning rooted in culture and participation promotes both environmental and health outcomes. This model contributes to the global Education for Sustainable Development (ESD) 2030 agenda by linking culture, ecology, and well-being in primary education.

Low back pain is a common complaint among pregnant women in the second and third trimesters due to biomechanical and hormonal changes. Non-pharmacological interventions like prenatal exercise are believed to be effective, though evidence from controlled trials is limited. This study aimed to evaluate the effectiveness of prenatal exercise in reducing low back pain intensity. A quasi-experimental pretest–posttest control group design was used with 30 pregnant women (15 in the intervention group, 15 in the control group), selected by purposive sampling. The inclusion criteria were gestational age of 20–36 weeks, no medical contraindications, and willingness to participate. The intervention group performed prenatal exercises twice a week for 8 weeks (45 minutes per session), while the control group received health education without physical exercise. Pain intensity was measured using the Visual Analogue Scale (VAS). Data analysis was conducted using paired t-test, independent t-test/Mann–Whitney, and ANCOVA to control for age, parity, and BMI. Both groups had homogeneous baseline characteristics (p > 0.05). The intervention group’s pain score decreased from 6.9 ± 1.1 to 3.6 ± 1.0 (Δ = -3.3; p < 0.001), while the control group’s pain score decreased from 6.8 ± 1.2 to 6.3 ± 1.1 (Δ = -0.5; p = 0.09). The difference in pain reduction between groups was significant (p < 0.001). ANCOVA confirmed that prenatal exercise was significantly effective after adjusting for confounders (β = -2.8; p < 0.001). Prenatal exercise is an effective, safe, and affordable intervention for reducing low back pain in pregnant women.

Physical fitness is a fundamental determinant of athletic performance and is strongly influenced by dietary intake and lifestyle behaviors. Adequate protein consumption is essential for muscle development and energy metabolism, whereas smoking has detrimental effects on lung function and aerobic capacity. This study aimed to explore the relationship between protein intake and smoking habits with physical fitness, measured by maximal oxygen uptake, among athletes of Persela Football Academy under-eighteen. A quantitative approach with a cross-sectional design was applied, involving adolescent male athletes. Protein intake was assessed using a semi-quantitative food frequency questionnaire, smoking habits were obtained through structured interviews, and maximal oxygen uptake was measured using the multistage fitness test. Findings revealed that the average daily protein intake of athletes was relatively high, while the mean maximal oxygen uptake score fell within the good category. Correlation analysis demonstrated a significant association between protein intake and aerobic fitness, as well as between smoking habits and aerobic fitness. The results indicate that lower protein intake and higher smoking frequency are linked to reduced physical fitness capacity. This study highlights the importance of nutritional interventions and healthy lifestyle promotion as integral components in the development of youth athletes to optimize performance and prevent decline in fitness.

The development of video streaming services has made DramaBox widely used by Generation Z, who prioritize fast entertainment access through mobile devices. However, complaints such as long ad duration, unstable video quality, and inaccurate subtitles remain obstacles that can reduce user satisfaction. This study analyzes the factors that influence DramaBox user satisfaction in Jambi City using the End User Computing Satisfaction (EUCS) method with five main dimensions: content, accuracy, format, ease of use, and timeliness. Data were obtained through questionnaires completed by 385 respondents and processed using SEM-PLS with the help of SmartPLS 4. The results showed that accuracy and timeliness significantly influence user satisfaction, while content, format, and ease of use did not have a significant impact. This finding indicates that information reliability and system speed are the most determining aspects of user experience. Therefore, improvements in both aspects are important for the future development of the DramaBox application.

This study aims to analyze the effect of sustainability report disclosure, audit committee meeting frequency, liquidity, leverage, and total asset turnover on profitability in mining companies listed on the Indonesia Stock Exchange (IDX) during the 2021–2023 period. Profitability is measured using Return on Equity (ROE). This research adopts a quantitative approach using secondary data obtained from annual financial statements and sustainability reports. The sample was selected using purposive sampling, yielding 34 mining companies with 102 observations in total. Multiple linear regression analysis was employed after fulfilling classical assumption tests. The results indicate that sustainability report disclosure, audit committee meetings, liquidity, leverage, and total asset turnover simultaneously have a significant effect on profitability. However, partially, total asset turnover has a positive and significant impact on profitability. Meanwhile, sustainability report disclosure, audit committee meeting frequency, liquidity, and leverage do not significantly affect profitability. These findings suggest that asset utilization efficiency plays a crucial role in improving profitability in the mining sector. This study is expected to provide insights for companies, investors, and regulators to understand the determinants of profitability better and to support improved corporate governance and financial decision-making in mining companies.

Local governments in Indonesia rely significantly on local tax revenues to strengthen fiscal independence and sustain regional development. Among these revenue sources, the Motor Vehicle Tax (PKB) and the Motor Vehicle Transfer Fee (BBNKB) play a vital role in shaping regional fiscal capacity. This study explores how both taxes contribute to the Regional Own-Source Revenue (PAD) of Central Java Province during the 2020–2024 period. Drawing on quantitative analysis and secondary data from the Central Java Regional Revenue Agency (Bapenda), the research assesses the effectiveness and contribution of PKB and BBNKB in supporting local fiscal performance. The results show that PKB consistently exerts a positive, meaningful influence on PAD, underscoring its central role in sustaining the province’s fiscal strength. In contrast, BBNKB demonstrates a weaker, less stable impact, primarily driven by changes in vehicle ownership trends and administrative challenges. When considered together, both tax instruments contribute to enhancing local fiscal capacity, although the reliance on PKB remains predominant. These findings underscore the importance of modernizing regional tax administration, particularly through digital innovation, transparent reporting systems, and community-based compliance strategies. Strengthening these mechanisms is essential to building a more resilient and autonomous fiscal framework, especially in the context of post-pandemic economic recovery and long-term regional development planning

Background: Oral health is an important indicator of overall health, well-being, and quality of life. According to the WHO, oral health is a state of freedom from various diseases and conditions, including dental and oral diseases that limit an individual's ability to bite, chew, smile, speak, and psychosocial well-being. Therefore, it is necessary to maintain oral hygiene as an effort to improve oral health. Case report: A 45-year-old man came to Soelastri General Hospital complaining of a large cavity in his upper left tooth. The tooth had been painful for about a year and had not undergone any treatment.Extraoral examination revealed a symmetrical face. Clinical examination of the maxillary left first premolar revealed a large cavity on the distoocclusal surface with pulpal depth.  Discussion: Perforations can be treated through cavity access; the prognosis depends on the elimination and prevention of infection in the perforation area and the choice of material. The success of perforation closure management is influenced by several factors, including the timing of perforation closure, the choice of material used, the location of the perforation, and adequate perforation closure. Conclusion: Case of maxillary left premolar with diagnosis of pulp necrosis which experienced lateral perforation and the area was closed using MTA, then root canal treatment.  

This study analyzes the legal protection of children as perpetrators of rape within Indonesia’s national legal system and Aceh’s Qanun Jinayat, focusing on the Syar’iyah Court’s decisions that often fail to confirm the fulfillment of children’s rights to education, rehabilitation, and reintegration. Although the principle of the best interests of the child requires comprehensive protection, the absence of clear implementing regulations has created uncertainty. Using a normative juridical method with legislative and case approaches, the research draws on secondary data enriched with primary data and qualitatively analyzed. The findings show that both national law and Qanun Jinayat emphasize child protection based on the best interests principle. National law mandates special procedures such as mentoring, closed hearings, psychological assessments, and diversion, while Qanun Jinayat, through Article 50, stipulates lighter and proportionate uqubat for children. These frameworks complement each other in ensuring education, psychological recovery, and social reintegration. However, several Syar’iyah Court decisions have not explicitly included recovery rights, resulting in ineffective protection and legal uncertainty. The study recommends that the Syar’iyah Court explicitly incorporate children’s rights to education, rehabilitation, and reintegration in its verdicts. Furthermore, the Aceh Government should issue Standard Operating Procedures or Governor’s Regulations to provide a clear legal basis for implementing child uqubat in line with the Juvenile Criminal Justice System.

This article provides a comprehensive examination of the application of the lex loci celebrationis principle in the execution of notarial deeds involving foreign legal subjects within the Indonesian legal system. The principle affirms that any authentic deed executed in Indonesia must comply with national legal requirements, regardless of the parties’ nationality or the existence of transnational legal relations. Through normative legal research employing statutory, conceptual, comparative, and case-study approaches, this article elucidates how the lex loci celebrationis principle interacts with private international law, particularly in relation to the legal capacity of foreign nationals, the use of foreign documents, and the limits of jurisdiction. The analysis reviews the Law on Notarial Office, the Indonesian Civil Code, population administration regulations, as well as doctrinal developments and jurisprudence pertaining to international legal acts. The findings indicate that although the substantive aspects of an agreement may refer to foreign law through lex voluntatis, the formal validity of a notarial deed remains entirely governed by Indonesian law. These findings underscore the need to enhance the competence of notaries in understanding the dynamics of private international law and highlight the importance of harmonizing national regulations with the principles of private international law to ensure legal certainty in cross-border transactions.

The development of social media platforms like TikTok has created new spaces for digital economic activities, including the practive of thrifting, which has now become a trend among the public. However, government policies that block these activities have sparked various public reactions. This study aims to analyze public sentiment regarding the issue of thrifting bans on the TikTok platform using the Bidirectional Long Short-Term Memory (Bi-LSTM) method. This method was chosen because it can understand text context from both directions, allowing it to capture deeper semantic meaning. The dataset consist of 4,000 TikTok user comments collected through a crawling process. The research stages include data preprocessing, sentiment labeling, splitting training and test data, training the Bi-LSTM model, and evaluating performance using accuracy, precision, recall, and F1-score metrics. The research results show that the Bi-LSTM model achieved an accuracy of 86.15%, with stable classification performance and minimal error rate. These findings indicate that Bi-LSTM is effective for sentiment analysis of public opinions on Indonesian language social media, particularly on context specific policy issues. Further development can be carried out by adding pre-trained embeddings or attention mechanisms to improve the model’s performance.

Penelitian ini bertujuan untuk mengembangkan sistem telemetri guna memantau kinerja panel surya pada beberapa lokasi dengan menggunakan komunikasi jarak jauh dan platform Internet of Things (IoT). Metode pemantauan konvensional memiliki keterbatasan dalam menyediakan data secara real-time pada area yang luas, sehingga evaluasi kinerja jarak jauh menjadi kurang efisien. Untuk mengatasi permasalahan tersebut, dirancang sebuah sistem pemantauan menggunakan mikrokontroler ESP32, sensor INA219 untuk mengukur tegangan dan arus, modul GPS Neo-M8 untuk identifikasi lokasi, modul Real-Time Clock (RTC) DS3231 untuk pencatatan waktu, serta modul LoRa RA-02 sebagai media komunikasi nirkabel. Setiap node pengirim dilengkapi dengan modul MicroSD untuk menyimpan data pengukuran secara lokal. Data hasil pengukuran dikirimkan melalui LoRa ke unit penerima dan ditampilkan secara real-time pada platform Thinger.io. Hasil kalibrasi menunjukkan bahwa sensor INA219 memiliki rata-rata galat pengukuran arus sebesar 0,71% dan galat pengukuran tegangan sebesar 0,1%. Pengujian GPS menunjukkan koordinat lokasi yang stabil dengan tingkat akurasi sekitar ±3 hingga ±8 meter. Seluruh data pengukuran berhasil dikirim, disimpan, dan ditampilkan tanpa kehilangan data yang signifikan. Hasil penelitian menunjukkan bahwa sistem yang dikembangkan mampu menyediakan pemantauan parameter panel surya secara jarak jauh yang andal dan efisien dalam kondisi lapangan.

This paper explores the epistemological dimensions of the digital transformation occurring in traditional game development through the integration of machine learning systems. By examining how knowledge creation, validation, and application have evolved in this domain, we identify fundamental shifts in the epistemological frameworks governing game development practices. The research investigates how machine learning has redefined creative processes, technical implementation, and experiential design while challenging traditional notions of authorship, expertise, and knowledge transmission. Through analysis of industry case studies, technological capabilities, and theoretical frameworks, this paper contributes to understanding how machine learning systems are not merely tools but epistemological agents that fundamentally transform how knowledge is generated, validated, and utilized in game development ecosystems.

Manual quality assessment of Platelet Concentrate (TC) is highly subjective and inconsistent, necessitating an objective, automated classification system. This study aims to develop a computationally efficient, low-cost model for TC quality classification using Histogram Features extracted from grayscale images combined with the K-Nearest Neighbor (KNN) algorithm. The methodology employed critical preprocessing steps, including StandardScaler for normalization and SMOTE for balancing the training data, followed by optimization across K=1 to K=30. The optimal model achieved a maximum accuracy of 69.23% at K=6, with an F1-Score of 71.43%, confirming robust performance on the imbalanced testing set. The results validate the effectiveness of the Histogram-KNN approach as a consistent and reliable decision support system for rapid TC quality screening in resource-limited settings.

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.

This research examines inter-ethnic marriages between Acehnese and Bugis-Makassar communities in Makassar City from 1990 to 2004, which emerged as a consequence of social mobility, cross-cultural interaction, and compatibility of religious values. The purpose of this study is to explain the factors that trigger inter-ethnic marriages, the underlying customary processes, and the socio-cultural dynamics that occur within family life. This research uses historical methods, including the heuristic stage, source criticism, interpretation, and historiography, with data obtained thru in-depth interviews with four families and related documentary sources. The research findings indicate that holding a wedding requires cultural negotiation between the two groups, with some families adopting traditional Acehnese ceremonial customs, while others implement Bugis-Makassar traditions. In family life, couples face differences in values regarding communication, gender role division, and religious practices, which are then overcome thru a dialogue-based process of adaptation and compromise. This process results in the formation of hybrid cultural identities, the expansion of social networks, and the strengthening of inter-ethnic integration. Overall, intertribal marriages serve as a medium for cultural reconciliation and a means of building more inclusive social relationships in a multicultural society.

This research examines inter-ethnic marriages between Acehnese and Bugis-Makassar communities in Makassar City from 1990 to 2004, which emerged as a consequence of social mobility, cross-cultural interaction, and compatibility of religious values. The purpose of this study is to explain the factors that trigger inter-ethnic marriages, the underlying customary processes, and the socio-cultural dynamics that occur within family life. This research uses historical methods, including the heuristic stage, source criticism, interpretation, and historiography, with data obtained thru in-depth interviews with four families and related documentary sources. The research findings indicate that holding a wedding requires cultural negotiation between the two groups, with some families adopting traditional Acehnese ceremonial customs, while others implement Bugis-Makassar traditions. In family life, couples face differences in values regarding communication, gender role division, and religious practices, which are then overcome thru a dialogue-based process of adaptation and compromise. This process results in the formation of hybrid cultural identities, the expansion of social networks, and the strengthening of inter-ethnic integration. Overall, intertribal marriages serve as a medium for cultural reconciliation and a means of building more inclusive social relationships in a multicultural society.