Publication Search

Disc discs are the main component in a motorcycle braking system that functions to convert kinetic energy into heat energy through friction. The geometric design of the disc, including the diameter and number of holes, affects the effectiveness of braking as well as the heat dissipation ability. This study aims to analyze the effect of variations in diameter and number of holes on disc discs on braking distance and disc temperature. The research method used was an experimental method with three variations in disc diameter (190 mm, 220 mm, and 260 mm) and three variations in the number of holes (30, 36, and 42 holes). The test was carried out through a controlled braking procedure at an initial speed of 40 km/h on flat road surfaces with stable weather conditions. Braking distance data is measured using ultrasonic sensors, while disc temperature is recorded with a high-accuracy infrared thermometer. The results showed that the diameter of the disc disc had the most significant influence on the braking distance. The larger the diameter, the greater the braking moment resulting so that the stopping distance becomes shorter. The number of holes in the disc also plays a role in heat dissipation because the holes enlarge the heat dissipation area. However, the increase in the number of holes tends to slightly increase the braking distance due to a reduction in the area of frictional contact field. The most optimal configuration is found on a 260 mm diameter disc with 42 holes, which results in the shortest braking distance of 8.25 meters and the lowest temperature rise of 4.47°C.  Statistical analysis using Two-Way ANOVA confirmed that the diameter and number of holes had a significant effect individually, but there was no significant interaction between the two. These findings confirm that the selection of the right disc dimensions is critical to improving braking performance, thermal efficiency, and rider safety.

The implementation of the Land Dispute Handling and Resolution Policy through Mediation at the Pekanbaru City Land Office has several phenomena such as the number of mediations exceeding the target every year, no change in targets, and a low number of resolutions through mediation. This policy aims to provide legal certainty in order to implement land policy, which is one of the tasks and functions of the Ministry of Agrarian Affairs and Spatial Planning/National Land Agency. The purpose of this research is to analyze and describe the Implementation of Land Dispute Handling and Resolution Policy Through Mediation at the Pekanbaru City Land Office. Additionally, it aims to identify the inhibiting factors of the Implementation of Land Dispute Handling and Resolution Policy Through Mediation at the Pekanbaru City Land Office using the Policy Implementation theory according to Van Meter and Van Horn. This research employs a qualitative descriptive research type by collecting data through interviews, observations, and documentation. The results of this study indicate that the Implementation of Land Dispute Handling and Resolution Policy Through Mediation at the Pekanbaru City Land Office has not been carried out effectively due to several shortcomings in various factors. The inhibiting factors include the complexity of synchronizing mediation schedules, inadequate budget, and low mediation success rate.

This research was conducted at Public Fuel Filling Station (Stasiun Pengisian Bahan Bakar Umum/SPBU)54.861.02 PT Bolawolon with the objective of analyzing the accounting information system for cash sales of Fuel Oil (Bahan Bakar Minyak). This study employed a qualitative approach with a descriptive method. Data were collected through observation, interviews, and documentation. The findings revealed that task overlapping still occurred, as operators also performed sales, cash handling, and delivery functions, while the manager also undertook warehouse and accounting functions. In addition, the documentation used was still limited to fuel purchase recommendation letters, purchase receipts, and bank deposit slips. The accounting records were also incomplete, covering, only sales journals and cash receipts, while calculations continued to be performed manually. Although most cash sales procedures had been implemented, the recording of the cost of goods sold had not yet been carried out.

This study aims to describe the management of the Keceme Drinking Water Supply System SPAM as an effort to overcome drought in Waru Hamlet, Girisekar Village, Panggang District, Gunungkidul Regency, Special Region of Yogyakarta. The drought problem in the area has been going on for a long time, thus demanding a sustainable solution to meet the community's clean water needs. This study uses a qualitative approach with data collection techniques through observation, in-depth interviews with SPAM managers and the community, and documentation. Data analysis was carried out with reference to George R. Terry's management theory which includes four management functions, namely planning, organizing, actuating, and controlling. The results show that the existence of the Keceme SPAM greatly helps the community in obtaining access to clean water, although various obstacles still exist. The main obstacles include planning that is mostly not documented in writing, limited number and capacity of human resources in management, technical problems in the form of lime deposits that disrupt water flow, and high operational and maintenance costs of the network. However, the existence of social capital in the form of a spirit of mutual cooperation among the community, as well as policy support and facilities from the village government, are important factors driving the sustainability of SPAM management. This research is expected to provide practical contributions as a reference for other regions facing similar challenges, particularly in optimizing the use of local water sources as a sustainable drought mitigation strategy.

This study aims to analyze the role of Sio as an intermediary in traditional Nias marriage ceremonies in Ononazara Village, Tugala Oyo District, North Nias Regency. The focus is directed toward how the Sio positions himself within the customary social arena and how social, cultural, and symbolic capital serve as the foundation of his legitimacy and authority. The research problem arises from the phenomenon of social change, where the authority of parents and traditional leaders, once dominant, is now shared with the presence of the Sio as a central mediator. The study employs a qualitative method with a descriptive approach. Data were collected through observation, in-depth interviews, and documentation, validated by triangulation of sources, methods, and theories. Data analysis uses Pierre Bourdieu’s concepts of social capital and social arena to reveal the dynamics of power relations in customary practices. The findings indicate that the Sio is not merely a spokesperson but a key actor who maintains harmony, mediates Böwö (bridewealth) negotiations, and ensures effective communication between families. His position is shaped by kinship networks, deep knowledge of customs and ritual language, and social reputation. In the context of modernization, the Sio functions as both a cultural conservator and adaptive mediator who balances economic and symbolic dimensions in traditional Nias marriages.

The development of information technology has accelerated digitization in various sectors, including in the decision-making process. In the DayTrans Shuttle service, the selection of the best route is still done manually using Microsoft Excel. This process is time-consuming, inefficient, and has the potential to cause errors and subjectivity. The purpose of this study is to design and develop a web-based decision support system by applying the Weighted Product (WP) method to determine the most optimal shuttle route objectively and efficiently. The research data was obtained through interviews, observations, and literature studies, then analyzed according to system requirements. The development was carried out through the stages of requirements analysis, database and interface design, implementation, and testing. The developed system is equipped with features for managing criteria data, alternative routes, weight calculations, and real-time presentation of recommendation results. The research results show that the system functions well, is able to speed up the route selection process, and produces accurate and transparent recommendations. Thus, this system is expected to improve DayTrans' operational efficiency while supporting the quality of inter-city transportation services.

Quality control is a crucial aspect in various fields, such as education, the food industry, and manufacturing, as it functions to maintain the consistency of service or product quality. Inaccuracy in managing quality can cause financial losses, damage an institution's reputation, and reduce stakeholder trust. Based on this urgency, this study reviews recent literature to answer the main question of how quality control strategies can be effectively applied in diverse organizations. The review was conducted through a qualitative literature review approach by exploring scientific publications via Google Scholar and the Publish or Perish (PoP) application. Article selection was based on the relevance of keywords related to quality control and was limited to publications from 2020–2025. Out of 24 articles found, filtering was done until 5 of the most relevant articles remained for in-depth analysis. The analysis reveals three main findings. In higher education, a strong internal quality system and a sustainable quality culture are needed. The food industry emphasizes the standardization of raw materials and optimization of production processes. Meanwhile, the manufacturing sector makes extensive use of statistical techniques and tiered inspections. Overall, the effectiveness of quality control requires a combination of technical, managerial, and organizational culture aspects. Future research is recommended to explore the integration of digital technology and sustainability principles in quality control practices.

This study aims to identify words that contain lexical ambiguity, explore their meanings, and classify them in the children’s book Amelia Bedelia by Herman Parish. The data were collected from the Amelia Bedelia Chapter Books series, which consists of twelve books published between 2013 and 2018. The analysis identified a total of 58 words with lexical ambiguity, including 46 instances of polysemy and 12 of homonymy. The classification of polysemy and homonymy is based on the semantic relatedness or unrelatedness between the multiple meanings of each word. The Amelia Bedelia stories effectively illustrate how children perceive and react to lexical ambiguity through the main character, Amelia, who is known for her literal interpretations of figurative language. This literal understanding often leads to humorous situations. Lexical ambiguity in these books functions not only as a source of entertainment but also as a valuable linguistic learning tool. Therefore, the stories contribute to language development in early childhood readers.

This study aims to analyze the strategic role of the shipping agent, specifically PT. Naval Global Trans Belawan Branch, in ensuring the smooth flow of the maritime logistics chain. The shipping agent functions as a crucial intermediary coordinating contasiner distribution, bridging the interests of cargo owners, shipping companies, and the Belawan Port authority. The research utilizes a descriptive qualitative approach, with data collection performed through field observation and documentary study within the Belawan Port environment. The findings identify that the shipping agent holds broad responsibilities, commencing with container booking according to the required type and size, scheduling vessel arrivals and departures, managing customs and port documentation, and monitoring container movements (from the depot to loading onto the vessel). This role is highly instrumental in determining port throughput efficiency. However, in carrying out its functions, the shipping agent encounters several significant challenges. These constraints include limited container availability, disruptions in the port information system which is not yet optimally integrated, and dynamic changes in export-import regulations. These obstacles potentially cause operational delays and an increase in logistics costs. The study concludes by emphasizing the importance of better information technology integration between the shipping agent and the port authority. Furthermore, enhancing the quality of human resources (HR) through training and certification is key to ensuring that agents can respond to regulatory changes and operational challenges quickly and professionally.

PT. Pelayaran Dwi Putra Laksana Batam operates in the sector of ship security services and shipping management (shipping agency), providing support for both domestic and international voyages. Its services include handling vessel arrival and departure permits, processing entry and exit permits for foreign crew members, renewing ship and crew certificates, and managing administrative procedures for seafarers’ sign-on and sign-off documentation. The document management process begins when crew members either sign a Sea Work Agreement (PKL) for employment on Indonesian-flagged ships or enter into a work agreement for service on foreign-flagged vessels. This paper employs field observation and literature review methods to present a comprehensive description of the document processing mechanisms at PT. Pelayaran Dwi Putra Laksana Batam based on operational requirements. The discussion focuses on outlining the workflow of seafarer book sign-on procedures, starting from the shipowner’s notification regarding scheduled crew changes to final administrative completion at the Batam Special KSOP Office. The sign-on document not only verifies the crew member’s official assignment but also functions as a record of their maritime service history. Common challenges include delays in information submission from shipowners, which can prevent timely sign-on and subsequently hinder vessel clearance. Therefore, strong coordination between shipping companies and regulatory agencies is essential to ensure effective fulfillment of responsibilities in managing crew documentation.

This research aims to analyze the conflict of authority between the Constitutional Court (Mahkamah Konstitusi) and the Supreme Court (Mahkamah Agung) within Indonesia’s constitutional system, focusing on institutional disputes that have emerged following the amendment of the 1945 Constitution. The main objective is to examine the legal foundations, juridical implications, and mechanisms for resolving jurisdictional conflicts between the two courts through a normative juridical approach and case-based analysis. The findings indicate that authority conflicts between the Constitutional Court and the Supreme Court often arise from overlapping legal norms and ambiguities in the delineation of constitutional functions established by the 1945 Constitution and its implementing laws. In several cases, such as disputes over the judicial review of regulations below the level of statutes, divergent interpretations have occurred regarding the scope of constitutional versus administrative jurisdiction. This study reveals that legal harmonization through regulatory reform and inter-institutional coordination is essential to prevent future jurisdictional overlaps. The conclusion emphasizes the need to strengthen the principles of checks and balances and clarify the hierarchy of norms to ensure stability in Indonesia’s constitutional framework. The research recommends the establishment of a cross-institutional constitutional forum as a mediation mechanism among state institutions to uphold constitutional supremacy and legal certainty in Indonesia.

This research is motivated by the gap between the support provided by the local government, which has provided the Village Information System (SID) facility to Muaro Pijoan Village, and the actual situation on the ground, which is not yet ready, both in terms of human resources, infrastructure, budget, and legal framework. As a result, the implementation of e-government in Muaro Pijoan Village has not been optimal, and public services are still largely performed manually. This research used a qualitative, descriptive approach. Data collection techniques included observation, interviews, documentation, and literature review. The results indicate that the readiness of the Muaro Pijoan Village Government remains low. In terms of technology utilization, the SID website only functions as a one-way information delivery service and does not yet support interactive public services. This study aims to determine the readiness of the Muaro Pijoan Village Government for e-government implementation and identify factors influencing this readiness.  

The purpose of this research is to find answers to what the accounting information system is regarding inventory, cash sales and cash receipts at the Hi.Rembulan company. Can be refined according to a good and theoretically correct accounting information system for inventory, cash sales and cash receipts, so that it can be applied according to company conditions. The rationale for this research is the need to implement an accounting information system regarding inventory, cash sales and cash receipts at the Hi.Rembulan company. Then analyze the weaknesses in the company. So that alternative solutions to problems that arise can be created in accordance with a good and theoretically correct accounting information system. From the results of this research, it is concluded that in solving the problem of implementing an accounting information system regarding inventory, cash sales and cash receipts, it is best to strictly separate responsibilities and carry out accounting functions by different people to avoid cash misappropriation, the documents used are such as notes. Sales are printed serial numbers so that use can be accounted for by the authorized user of the document.

Bullying is a serious problem that negatively affects students’ mental health, self-esteem, and academic achievement. Resilience functions as a protective factor that enables victims of bullying to remain adaptive despite adverse experiences. Peer support has been shown to enhance self-confidence, social competence, and psychological resilience among adolescents. This community service program aimed to strengthen students’ resilience through peer support training at SMP Negeri  Semarang in July 2025. A total of 18 students identified by school counselors as bullying victims participated in three training sessions: (1) education on bullying and resilience, (2) resilience skills training including emotional regulation, problem solving, and positive thinking, and (3) peer support group formation. The Connor-Davidson Resilience Scale (CD-RISC-10) was used to measure resilience before and after the intervention. Findings indicated an increase in average resilience scores from 21.6 to 29.6, representing a 37% improvement. Qualitative observations revealed enhanced self-confidence, improved emotional regulation, and stronger social support from peers. These results demonstrate that peer support-based resilience training is effective in improving students’ psychological adaptability. The intervention can serve as a school-based psychosocial strategy to foster mental well-being among adolescents, particularly those who have experienced bullying.

This research aims to determine the function of the Barongsai art in the Chinese community in Payung Sekaki District, Riau Province. The theory used in this research is the theory of Allan P Merriam (1964:219:227) which states that art has functions, namely 1) communication function 2) entertainment function 3) symbolic function 4) function of integrating society. The method used in this research is descriptive analysis using qualitative data, with data collection techniques namely observation, interviews and documentation techniques. The subjects in this research were 4 people. The communication function of the lion dance art in Payung Sekaki District can be seen through the movements and appearance of the lion dance and the performers. Wushu martial arts movements and costumes from performers and lion dance. The entertainment function of the Lion Dance art in Payung Sekaki District is not only performed during Chinese New Year holidays, but also other events such as wedding parties, company inaugurations, and welcoming guests. The symbolic function of Barongsai art in Payung Sekaki District can be seen from several symbols of the Barongsai, such as the symbol of courage and strength marked by the beard on the Barongsai's chin and the symbol of prosperity and good luck marked by the ears and tail. The function of integrating the Barongsai art community in Payung Sekaki District certainly creates a sense of togetherness that exists between players and spectators, which indicates that there is community integrity in the Barongsai art.

The verification and validation process for land application data at the Southwest Sumba Regency Land Office has been carried out manually, which often results in delays, data inconsistencies, and the potential for errors in decision-making. These problems impact the low efficiency of public services and the accuracy of managed data. Therefore, this study aims to develop a Decision Support Sistem (DSS) that can assist the verification and validation process for land application data sistematically, quickly, and objectively. This sistem is built using the Simple Additive Weighting (SAW) method, which functions to determine the level of eligibility of an application based on several criteria, namely completeness of documents, land status, legality of ownership, suitability of applicant data, and dispute history. The sistem design process is carried out through several stages, including needs analysis, design, implementation, testing, and evaluation. The results show that the implementation of a SAW-based DSS can increase the efficiency of the verification process by up to 65%, and increase the accuracy of validation results by up to 90% compared to manual methods. This sistem provides automatic decision recommendations, thus assisting officers in assessing the eligibility of land applications in a transparent and consistent manner. Thus, this sistem has the potential to be an effective solution to support the digitalization of public services in the land sector in Southwest Sumba Regency.

Village Community Institutions (LKD) play a strategic role in supporting village governance and the implementation of community-based development. However, various challenges remain for many LKDs, particularly in terms of institutional capacity, regulatory understanding, and collaboration among stakeholders. This community service activity aims to strengthen the capacity of the LKD of Pamboborang Village, Banggae Sub-District, Majene Regency, in supporting sustainable village development. The activity was conducted through interactive lectures focusing on improving understanding of institutional functions, strategic roles in planning and monitoring development, and the importance of synergy between the LKD, village government, and the community. Participants included LKD members, village officials, and local community representatives. The results showed an increase in participants’ understanding of the main duties and functions of LKDs, along with a growing collective awareness of the importance of local institutional roles in sustainable development. This activity serves as a tangible contribution to transforming village governance through institutional empowerment. In the future, follow-up actions such as continuous mentoring and practice-based training will be needed so that LKD institutional capacity can develop systematically and independently.

This study aims to analyze the integration of administration, state property management, human resources, and finance in supporting a facilitative immigration system. These four aspects are essential pillars for maintaining efficiency, effectiveness, and transparency in public service delivery within immigration institutions. However, their implementation often operates separately, causing inefficiency and delays in administrative decision-making. Using a descriptive-analytical approach based on literature review and regulatory analysis, this study finds that structured collaboration among administrative units strengthens internal coordination and improves service quality for the public. Administration functions as the foundation for documentation and record management, state property supports operational infrastructure, human resources drive organizational performance, and finance ensures program continuity and budget accountability. The integration of these components creates a more adaptive, transparent, and accountable work system to face global challenges, especially in the era of digital public services. The study recommends implementing an integrated information system, enhancing personnel competencies, and optimizing budget planning and supervision to achieve professional and competitive immigration governance.

This study examines the integrity of general elections through the lens of prophetic journalism. A qualitative approach was employed to explore the perspectives and experiences of institutional administrators, community leaders, and local residents regarding electoral integrity grounded in prophetic journalism. This approach emphasizes the importance of relationships among various actors in the public policy process, including government institutions, non-governmental organizations, and the private sector. The research was conducted at the East Java Provincial General Election Commission (KPU), with data collected directly by the researcher through observation of words and actions. Data collection was carried out holistically and integratively, focusing on relevance to the study objectives. Data analysis involved systematically searching, organizing, and processing all interview transcripts while ensuring validity through careful verification procedures. The results indicate that electoral integrity can be maintained effectively through a combination of deliberative democracy and prophetic journalism. In this context, the media functions not only as an information distributor but also as a moral agent ensuring transparency, accountability, and fairness throughout the electoral process. Campaigns to validate and counter hoax news during elections are most effective when prophetic journalism is integrated with agenda-setting theory, allowing the media to shape public perception through information filtering, digital literacy education, and the delivery of objective and ethical reporting. Prophetic journalism also serves as a social control mechanism, reinforcing transparency and oversight by combining the press’s watchdog function with principles of honesty, responsibility, and wisdom, preventing electoral manipulation and safeguarding democratic integrity.

This study discusses the implementation of personality development management for inmates at Kotabumi Class IIA Penitentiary as part of the correctional system in Indonesia, emphasizing rehabilitation and social reintegration rather than just punishment. The effectiveness of the development program remains a fundamental issue, particularly due to limited staff, inadequate facilities, and overcrowding. This research aims to describe the implementation of personality development and analyze the application of management functions, such as planning, organizing, leadership, and controlling, in its implementation. The method used is a descriptive qualitative approach with data collection techniques through observation, interviews with staff and inmates, and document study. The results show that personality development has been implemented through religious activities, arts, and sports, but still faces structural and functional barriers, such as a lack of facilitators, limited counseling spaces, insufficient teaching materials, and weak ongoing evaluation. According to George C. Edwards III’s policy implementation theory, significant obstacles were found in communication, resource availability, and rigid bureaucratic structure. The findings indicate that although the development program is running, its effectiveness remains suboptimal. This study concludes that strengthening managerial aspects, improving staff capacity, developing supporting facilities, and expanding collaboration with religious and social institutions are necessary to enhance the effectiveness of the program.