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Salim Salamah Majdi; Pranoto Effendi; Asgaft Asy Syad Rasyid

Jurnal Bisnis, Ekonomi Syariah, dan Pajak 2025 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Sharia financing is a key instrument that Islamic banks must promote in channeling third-party funds. This aligns with the basic principles of Islamic banking, which emphasize fairness, partnership, and business sustainability. Therefore, it is crucial to examine how various Islamic financing schemes impact Islamic bank profitability. This study focuses on Bank Mega Syariah, using secondary data sourced from quarterly financial reports for the period 2017 to 2024. The financing variables analyzed include musyarakah, mudharabah, murabahah, and ijarah, while profitability is measured using relevant financial performance indicators. The analysis method used is a quantitative approach using regression techniques to examine the effect of each type of financing on bank profitability. The results show that musyarakah, mudharabah, and murabahah-based financing have a positive and significant impact on profitability, meaning that the higher the distribution of these three types of financing, the greater their contribution to increasing bank profits. These findings indicate that the business partnership model, profit-sharing system, and profit margin stipulated in the murabahah contract significantly contribute to maintaining profit growth. Conversely, ijarah financing did not significantly impact profitability. This may be due to the characteristics of ijarah, which tends to be oriented towards fixed assets or leases, resulting in a relatively limited contribution to increasing short-term profits. Overall, this study provides important implications for Islamic bank management to further optimize the proportion of musyarakah, mudharabah, and murabahah financing as a strategy to boost financial performance and maintain business continuity amidst the competitive Islamic banking industry.

I Gede Agus Sentana Widana Yasa; I Nengah Suardika; Made Ika Prasetyadewi

International Journal of Economics and Management Sciences 2025 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Education plays a vital role in improving human resource quality, making it essential for addressing challenges in developing countries, such as inequality, poverty, and cultural instability. Teachers, as key facilitators in the learning process, are central to achieving educational goals, with performance influenced by internal factors like self-efficacy and external factors like organizational climate and leadership style. This study examines the influence of organizational climate and transformational leadership on teacher performance at SMK 3 Sukawati, with self-efficacy as a mediating variable. The population and sample include all 55 teachers, selected through purposive sampling. Data were collected via questionnaires, interviews, and documentation, then analyzed using path analysis. Results show that organizational climate and transformational leadership positively and significantly affect both teacher performance and self-efficacy. Self-efficacy also positively and significantly influences performance. Additionally, organizational climate and transformational leadership indirectly impact teacher performance through self-efficacy.

Ni Luh Suastini; I Nengah Landra; I Nengah Suardika

International Journal of Economics and Management Sciences 2025 Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Human resources (HR) are a crucial component of any organization, playing a vital role in determining its development and success. One key aspect of HR management is employee performance, which reflects the quality and quantity of employee output in meeting company targets. This study focuses on PT REX Denpasar, a logistics company that experienced fluctuations in monthly revenue throughout 2023. This phenomenon indicates performance issues related to work quantity, delivery accuracy, and time efficiency. Several operational issues identified included variability in staff productivity, delays in delivery schedules, and inaccuracies in shipping data processing. To explore solutions to these challenges, the study examined the role of managerial leadership and financial incentives in improving employee performance, with job satisfaction as a mediating variable. This study covered all 40 employees of PT REX Denpasar, using a comprehensive enumeration sampling method. Data were collected through structured questionnaires, in-depth interviews, and a review of organizational records. Analysis was conducted using a structural path modeling approach to examine the relationships between variables. The results showed that managerial leadership had a significant effect on job satisfaction, as did the financial incentives provided by the company. Furthermore, leadership quality and compensation systems have been shown to have a positive correlation with improved employee performance. Furthermore, job satisfaction was found to act as a substantial mediator, strengthening the influence of leadership and compensation on performance. Thus, improving leadership quality and improving compensation mechanisms not only have a direct impact but also an indirect impact through increased job satisfaction.

Marco Marco; Ika Devy Pramudiana; Sapto Pramono

Jurnal Hukum, Administrasi Publik dan Negara 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

This study aims to analyze the effectiveness of the use of Village Funds in Mengkait Village, South Siantan District, Anambas Islands Regency, Riau Islands Province. The Village Fund is a strategic policy of the government in order to accelerate the development and empowerment of village communities, so it is necessary to evaluate the extent to which the funds are used appropriately and effectively. The research approach used is qualitative descriptive with data collection techniques through in-depth interviews, observations, and documentation of informants consisting of village officials, community leaders, and beneficiary communities. This study uses four indicators of effectiveness, namely accuracy of timing, accuracy of cost calculation, accuracy in measurement, and accuracy in thinking. The results of the study show that the use of Village Funds in Mengkait Village in general has been quite effective. The timeliness of the implementation was largely achieved, although some activities experienced delays due to weather and logistical factors. In terms of cost calculation, the village government has prepared the budget in a participatory and transparent manner, although there have been some adjustments due to price changes in the field. Accuracy in measurements shows that physical activities have been carried out in accordance with the technical plan, although there is still a need for increased supervision and accuracy in implementation. Meanwhile, precision in thinking is reflected in program planning that starts to be based on data and the real needs of the community, although not completely visionary or long-term. The village government has shown progress in implementing the principles of good governance and village development management. In conclusion, the effectiveness of the use of Village Funds in Mengkait Village has reached a fairly good level. To increase effectiveness in the future, it is recommended to increase the capacity of village officials, strengthen the monitoring and evaluation system, and actively participate of the community in all stages of Village Fund management.

Fadilla Ramadhani; Febri Silvia

Jurnal Pariwisata Indonesia 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Hairstyling is a crucial aspect of enhancing one’s aesthetic appearance and self-expression, with the Hollywood Wave being one of the most iconic and classic styles. Characterized by large, shiny, and neatly arranged “S”-shaped waves, this style requires accuracy in both technique and tools. One of the most influential factors in achieving the desired look is the diameter of the curly iron used. Observations during an internship at a national television station revealed that different curly iron diameters, specifically 28 mm and 25 mm, produce varied results when applied to long straight hair. This study aims to compare the effectiveness of using 28 mm and 25 mm diameter curly irons in creating Hollywood Wave styles. The research employed a quantitative method with a One-Group Pretest-Posttest Design. The independent variable was the Hollywood Wave styling technique, while the dependent variable was the styling result measured across three indicators: wave shape, wave durability, and wave volume. The sample consisted of students who had completed the Hair Styling course and had long straight hair, selected through purposive sampling. Data were analyzed using descriptive statistics, followed by normality, homogeneity, and hypothesis testing to ensure validity. The findings demonstrate that the 28 mm curly iron performs more effectively than the 25 mm in producing Hollywood Waves that are neater, longer-lasting, and more voluminous. Statistical analysis confirms a significant difference between the two diameters in achieving optimal styling results. This suggests that the larger diameter curly iron not only provides a smoother and more polished wave pattern but also improves the durability and overall quality of the style. The study contributes to hairstyling practices by offering evidence-based insights into tool selection for professional styling, particularly for achieving the Hollywood Wave look.

Heydi Mayla Silvia Tumembow; Dian Ferriswara; Eny Haryati

Studi Administrasi Publik dan ilmu Komunikasi 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Manado City is highly vulnerable to hydrometeorological disasters due to its geographical conditions, rapid and uncontrolled urbanization, and the intensifying impacts of climate change. These risks underline the importance of effective disaster mitigation strategies that go beyond government intervention and involve active participation from communities and non-governmental organizations. In this context, collaboration among various actors becomes a crucial foundation for developing an adaptive and participatory disaster governance system. This study aims to analyze the dynamics of actor collaboration in disaster mitigation efforts in Manado City, with particular emphasis on patterns of interaction, role distribution, and structural as well as cultural barriers that influence the effectiveness of multi-stakeholder synergy. Employing a qualitative case study approach, this research relies on secondary data gathered from official documents, government policy reports, and relevant academic publications. Data were analyzed using thematic analysis to identify key themes and relational dynamics among stakeholders. The findings reveal that although strong driving factors exist—such as a high level of disaster risk, increasing public awareness, and the availability of institutional frameworks—collaboration remains largely procedural and government-dominated, with limited engagement from non-government actors. Challenges such as weak trust among stakeholders, insufficient substantive dialogue, and the absence of an integrated disaster information system continue to hinder the realization of effective collaborative practices. The study concludes by highlighting the urgency of adopting a collaborative governance model that emphasizes equality, mutual trust, and meaningful participation. Theoretically, this research contributes to the discourse on disaster governance by providing insights into actor relations in a disaster-prone urban context. Practically, it proposes an adaptive collaboration framework that can be replicated in other cities facing similar disaster vulnerabilities, thereby strengthening resilience and community preparedness.

Irna Fajriah; Nurikah Nurikah; Ahmad Lanang Citrawan

Perspektif Administrasi Publik dan hukum 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

This research is motivated by the problem of the effectiveness of the BKKBN Banten Province family planning program in realizing quality families in Serang City based on Law Number 52 of 2009 concerning Population Development and Family Development. The identification of the research problem is how effective is the BKKBN Banten Province KB program in efforts to realize quality families in Serang City? and what are the factors that influence the effectiveness of the BKKBN Banten Province KB program and solutions in facing obstacles to realizing quality families in Serang City. The theory used is the theory of legal effectiveness and the theory of the welfare state. The method used is empirical juridical, the research specifications used are descriptive qualitative. Using research data sources in the form of primary data and secondary data. Meanwhile, the data collection technique used in this study uses literature studies and field research. The data analysis used is a qualitative descriptive approach. The results of this study indicate that the family planning program from the BKKBN of Banten Province has been quite effective in realizing quality families in Serang City. The conclusion of this study is that the effectiveness of the KB program in realizing quality families in Serang City is quite effective, this is based on a review of the effectiveness of law from Soerjono Soekanto on five aspects of legal effectiveness, namely legal factors, law enforcement, facilities and infrastructure, society, and culture. However, it still faces obstacles in cultural factors and its society. In addition, the iBangga value in Serang City is 53.41, which indicates that Serang City is in the fairly good (developing) category. This study shows the role of the government in improving the welfare and quality of life of the community. In this case, in an effort to fulfill social services through the BKKBN Banten Province family planning program which aims to realize quality families in Serang City. The obstacles faced require improvements in the legal culture factor that needs to be improved with education and socialization in order to build awareness of the Serang City community about the importance of following the family planning program in realizing quality families in Serang City.

Depasbond Vijaya; Tri Andrisman; Sri Riski

Majelis : Jurnal Hukum Indonesia 2025 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

The phenomenon of increasing sexual violence crimes committed by children in Indonesia poses a dilemma for law enforcement. Children as perpetrators are legally responsible subjects, but they still require special protection. This study analyzes the dualism in the regulations of Law No. 11 of 2012 on the Juvenile Criminal Justice Sistem (UU SPPA) and Law No. 35 of 2014 on Child Protection. A normative and empirical legal approach is used to assess the substance, philosophy, and implementation of both laws. The results indicate inconsistencies in the application of restorative justice principles (diversion) and repressive sanctions. It is recommended that regulations be harmonized and the capacity of law enforcement officials be strengthened to achieve a fair and recovery-oriented sistem.

Raden Roro Friska Sita Arifah

Federalisme : Jurnal Kajian Hukum dan Ilmu Komunikasi 2025 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

In general, attacks on hospitals are prohibited under international humanitarian law (IHL), which aims to protect the life and health of civilians during armed conflicts. However, in certain circumstances, hospitals may lose their protection and thus become legitimate targets in warfare if they are considered to be involved in military activities or supporting the parties to the conflict. This brings into question the application of the principle of proportionality, which is an essential element of IHL. The principle of proportionality seeks to balance military necessity with the protection of civilians, requiring that the harm caused by military operations should not be disproportionate to the military advantage sought. This principle demands that military operations be conducted carefully to minimize harm to civilians and civilian objects, including hospitals. However, its application raises significant ethical questions regarding the moral justification of such actions, especially when hospitals are targeted in attacks. One prominent example that raises ethical concerns about this justification is the destruction of Al-Shifa Hospital in Northern Gaza. The hospital was destroyed in an airstrike during the conflict, causing severe harm to the civilian population that relied on this facility. While the principle of proportionality is designed to limit damage, attacks on hospitals such as Al-Shifa raise questions about whether the actions taken were truly consistent with this principle, particularly when the military gain achieved does not seem to outweigh the damage caused to human life and vital infrastructure. This article aims to explore the conventional moral justification of the principle of proportionality in international humanitarian law and evaluate its application in the case of Al-Shifa Hospital, challenging the boundaries of the principle in practice.

Stefanus Stefason; Ulul Albab; Eny Haryati

Parlementer : Jurnal Studi Hukum dan Administrasi Publik 2025 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

Vocational education in Indonesia faces a serious challenge in the form of a gap between the competencies of Vocational High School (SMK) graduates and the evolving needs of the workforce. Timika City, despite having the largest number of vocational high schools (SMK) in Papua, has not yet fully demonstrated optimal educational management quality, particularly in the aspect of school administration. This condition has resulted in low effectiveness in data recording, documentation of industrial work practices, and reporting and evaluation of partnerships with the business and industrial world (DUDI). This study aims to explore and analyze administrative management strategies that can improve educational quality while strengthening the work readiness of vocational high school students in Timika City. The research method used is a descriptive qualitative approach with content analysis of secondary data, including government policy reports, educational statistics, and the latest scientific literature. The results show that weaknesses in the administrative system are one of the factors inhibiting the achievement of competitive vocational education quality. The implementation of management strategies based on Total Quality Management (TQM) principles, particularly through the Plan–Do–Check–Act (PDCA) cycle, data-driven decision-making, and the involvement of all school elements, has proven effective in increasing the efficiency and accountability of administrative services. The discussion also emphasized the importance of transformational leadership from school principals, developing the competencies of administrative staff, utilizing information technology in administrative systems, and strengthening strategic partnerships with the industrial and industrial sectors (DUDI). Therefore, it can be concluded that school administrative management is not merely a technical function, but rather a strategic component in building a vocational education ecosystem that is adaptive, relevant, and oriented to the needs of the workplace. This research recommends that school policymakers and local governments strengthen administrative governance systems to support educational quality and improve the job readiness of vocational high school graduates.

Okta Rifo Fauziyah; Yana Indawati

Referendum : Jurnal Hukum Perdata dan Pidana 2025 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

Human trafficking is a highly complex form of transnational crime involving transnational criminal networks. This crime generally originates from developing countries with unstable socio-economic conditions, where women and children are often the primary victims. They are forced or tricked into working in exploitative sectors, particularly sexual exploitation, labor exploitation, and other forms of oppression that benefit agents, distributors, and organized crime syndicates. In Indonesia, regulations regarding this crime are stipulated in Law Number 21 of 2007 concerning the Eradication of the Crime of Human Trafficking. This study aims to determine the form of legal protection provided to victims of human trafficking in the jurisdiction of the Surabaya Police, as well as to understand the various obstacles faced by police officers and the efforts made to overcome them. The research method used is empirical juridical, namely examining the law in practice through primary data obtained from interviews, observations, and official documents, then combined with secondary data in the form of legal literature, laws and regulations, and tertiary legal materials to support the analysis. This study found that the Surabaya City Police have implemented legal protection measures for victims of human trafficking in accordance with applicable regulations, from handling reports and conducting investigations and inquiries, to coordinating with relevant agencies such as social services, women's and children's protection agencies, and non-governmental organizations. However, several obstacles remain, including limited police resources, low victim awareness of reporting cases, and threats from perpetrators that discourage victims from cooperating. Despite this, maximum efforts continue to be made through improved inter-agency coordination, legal and psychological assistance for victims, and firm law enforcement against perpetrators. Therefore, it can be concluded that legal protection for victims of human trafficking at the Surabaya City Police has been quite effective, although institutional strengthening and increased public legal awareness are still needed.

Anace Kambu; Dian Ferriswara; Sarwani

Kajian ilmu Hukum, Sosial dan Administrasi Negara 2025 Lembaga Pengembangan Kinerja Dosen

This study examines the empowerment of civil servants and its contribution to improving the quality of public services in Southwest Papua Province, with particular focus on the Human Resources Development Personnel Agency (BKPSDM: Badan Kepegawaian Pengembangan Sumber Daya Manusia). The research employs a qualitative descriptive approach to capture and analyze empowerment practices as well as their supporting and inhibiting factors. Data collection was carried out through interviews, observations, and documentation, involving key informants such as the Head of BKPSDM and relevant staff members. The data were analyzed using the interactive model of Miles, Huberman, and Saldana, which consists of three stages: data condensation, data display, and conclusion drawing/verification. The findings reveal that empowerment practices at BKPSDM encompass structured recruitment policies for both Indigenous Papuans (OAP) and non-OAPs, systematic career development, provision of education and training programs, and implementation of fair compensation mechanisms. These initiatives are aimed at enhancing civil servants’ competencies, professionalism, motivation, and accountability, ultimately contributing to better service delivery to the public. Supporting factors identified include the existence of strong regulatory frameworks, leadership commitment, competency-based training opportunities, high internal motivation, and the establishment of a collaborative work culture. On the other hand, several inhibiting factors persist, such as limited and unequal access to training, inadequate infrastructure, frequent changes in regulations, discriminatory practices, and low levels of digital literacy among some employees. The study concludes that civil servant empowerment represents a strategic pathway to building a professional, accountable, and responsive state apparatus capable of delivering high-quality public services. To strengthen these efforts, recommendations highlight the importance of expanding training access, improving digital skills, ensuring infrastructure readiness, and maintaining inclusive and transparent policies. By addressing these challenges, civil servant empowerment can be optimized to achieve sustainable improvements in public service performance across Southwest Papua Province.

Kustomo Kustomo

International Journal of Educational Sciences and Languages 2025 International Forum of Researchers and Lecturers

This study explores the role of transformational leadership in driving digital innovation and management practices in SMP Negeri 4 Jombang, an Indonesian public junior high school navigating the shift toward digital-based education. The research was motivated by the challenges many schools face in adopting digital technologies, particularly in terms of limited resources, digital literacy, and leadership readiness. The objective of this study is to investigate how school leadership contributes to the successful implementation of digital transformation, focusing on collaboration, inclusivity, and innovation within school management. Using a qualitative approach, the study involved in-depth interviews and observations with the school principal and several teachers as key informants. Data were analyzed thematically to capture leadership strategies, teacher engagement, and institutional responses to technological change. The findings reveal three main insights. First, the principal’s transformational leadership acts as the primary catalyst for digital innovation, inspiring a shared vision, fostering trust, and encouraging a proactive culture among teachers. Second, the implementation of digital management is characterized by collaborative decision-making and teacher inclusivity, ensuring that policies and practices remain contextually relevant and broadly accepted. Third, significant barriers persist, particularly regarding insufficient technological infrastructure, inconsistent internet connectivity, and varying levels of digital literacy among staff, which often limit the pace and scale of digital adoption. These findings suggest that effective digital transformation in education requires not only strong visionary leadership but also collective engagement from teachers and systemic support from educational stakeholders. The study emphasizes the importance of aligning leadership practices with institutional readiness to create sustainable digital change. By offering a practical framework that highlights the interdependence of leadership vision, collaborative practices, and organizational capacity, this research contributes to the growing literature on educational leadership and digital innovation. Furthermore, it provides valuable implications for policymakers and practitioners seeking to strengthen school management practices in the era of digital transformation.

Wendra Ananda Faudjie; Muhammad Sagaf

Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri 2025 Asosiasi Riset Ilmu Teknik Indonesia

UD. Indokarya Brass is a company engaged in the brass handicraft industry with its main products being door handles and bells. The main raw materials used in the production process include brass, copper, tin, and aluminum, which are obtained from suppliers both within and outside the city. On average, raw materials are received weekly with quantities of 50–100 kg of brass, 7–10 kg of copper, 10–15 kg of tin, and 3–5 kg of aluminum. In addition, the company also uses additional materials in the form of thinner and epoxy purchased from nearby hardware stores with less frequent purchases, namely 5–10 liters of thinner every month and around 5 kg of epoxy every two months. To date, the company has not had a structured policy for procurement and control of raw material inventory. This condition results in excess inventory of several types of raw materials which actually incurs high costs, both in terms of storage costs and warehouse maintenance costs. This excess inventory ultimately has an impact on reduced efficiency and decreased company profits. This study was conducted to analyze the existing inventory system and compare the company's current policy with a proposed method for more optimal inventory control. The calculation results show that the proposed method is able to provide significant inventory cost savings, namely 83.25% in brass raw materials, 15.28% in copper, 14.6% in tin, 43.37% in aluminum, 4.66% in epoxy, 4.2% in thinner, and 40.7% in other raw materials. Thus, the implementation of the right inventory control method can improve operational efficiency and help companies reduce cost burdens, so that profits can be more optimal.

Shabira Afina Pajri; Ubaedillah Ubaedillah

Venus: Jurnal Publikasi Rumpun Ilmu Teknik 2025 Asosiasi Riset Ilmu Teknik Indonesia

This study aims to analyze the factors that affect passenger satisfaction at the airport through three main perspectives, namely: service, technology, and operations. The approach used is a literature study of ten scientific journals that discuss airport service quality from various aspects. The results of the study show that service quality, especially those covering SERVQUAL dimensions such as reliability, responsiveness, empathy, assurance, and physical evidence, plays a major role in shaping service user perceptions. The technology perspective, through the implementation of self-service such as self check-in, Flight Information Display Sistem (FIDS), and digital service applications, is proven to increase efficiency and convenience, even contributing up to 96.8% to user satisfaction according to one study. Meanwhile, from an operational perspective, aspects such as queue time at check-in counters, public facilities, and accessibility to the terminal also have a significant impact on the overall passenger experience. The conclusion of this study emphasizes the importance of integration between the three perspectives in designing strategies to improve airport service quality. Suggestions are given to airport managers to continue to improve services, expand technology adoption, and reorganize operations to create a safe, comfortable, and satisfying travel experience for all service users

Ulfi Jefri; Muhammad Aldi Alfikhar; Muhamad Irfan; Nur Cholis Majid; Mohammad Rifki Riadi +1 more

Manfaat : Jurnal Pengabdian Pada Masyarakat Indonesia 2025 Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

This community service program was implemented to address the needs of farmers in Kalicaah Village, Tanjung Jaya Village, Panimbang District, for an affordable, simple, and user-friendly fertilizing tool. Traditionally, the application of solid fertilizer has been done manually, which not only leads to inefficiency but also significantly increases the physical workload of farmers. To overcome this issue, the program team designed a solid fertilizer spreader using appropriate technology, constructed from recycled materials such as PVC pipes and used water gallons. This innovation was aimed at creating a sustainable, low-cost solution for the local agricultural community. The program’s implementation involved several key activities, including identifying the farmers' challenges, conducting assembly training sessions, demonstrating the tool’s use, and running direct field trials in local farms. The results showed that the use of the newly developed fertilizer spreader led to a 45% reduction in the time spent applying fertilizer, which directly contributed to more efficient farming practices. Additionally, there was a significant reduction in physical complaints, particularly lower back pain, which had been a common issue due to the manual labor involved in fertilizing. The tool proved to be easy to construct, requiring minimal technical knowledge, and the farmers were able to adopt the technology independently. The high rate of adoption among farmers further emphasizes the tool’s potential for widespread use. The success of this program also suggests that this simple, affordable technology could be replicated in other agricultural regions, benefiting more communities by improving work efficiency, reducing physical strain, and fostering a sustainable approach to farming practices.

Katharina Stefania Ade Jaro; Khopipah Khopipah; Napis Napis

Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Traffic congestion in Jakarta has become a serious problem, affecting various aspects of life, such as time efficiency, environmental quality, and economic productivity. As one solution to overcome this problem, the Jakarta government is developing a mass public transportation system, including the Light Rail Transit (LRT). The LRT is expected to reduce congestion by providing a more efficient and environmentally friendly transportation alternative. In the process of planning and optimizing the LRT system, discrete mathematics, particularly graph theory, plays a very important role. Graph theory is used to model the LRT station network and track, with vertices representing stations and edges representing connecting lines between stations. With this model, various analyses can be performed to optimize the LRT line, such as finding the shortest path between two stations or evaluating the connectivity between existing stations. The use of graph theory allows the identification of more efficient routes, resulting in faster travel and reduced passenger waiting times. In addition, graph theory also plays a role in optimizing the LRT route by minimizing the number of transfers between stations or avoiding passenger congestion at certain stations. With proper route and network optimization, the LRT can make a significant contribution to reducing traffic congestion in Jakarta. Furthermore, the development of an efficient public transportation system also supports improved air quality and reduces reliance on private vehicles. Overall, the application of graph theory in LRT system planning is a strategic step towards creating more efficient and sustainable transportation in large cities like Jakarta. Beyond route optimization, graph theory is also very useful in analyzing route capacity and passenger distribution along the LRT system.

Nanik Apriyanti; Ardi Mustakim

Polygon : Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Loyang Dogan cake is a traditional Indonesian food commonly sold in markets without the use of modern preservation methods, making it susceptible to microbial contamination. This food is often produced and sold in conditions that may affect its quality and safety. Therefore, this study aims to provide a scientific overview of the potential microbial contamination in Loyang Dogan cakes and its benefits as an educational foundation for both producers and consumers regarding the importance of food hygiene. The focus of this research is to identify bacterial colony growth in Loyang Dogan cakes through microbiological culture tests. The method used in this study involves inoculation, starting with the dilution of the sample using sterile solutions, followed by inoculation onto a Nutrient Agar (NA) medium that has been solidified. The samples are then incubated at 37°C for 24 to 48 hours. After the incubation period, the growing colonies are observed and the number and morphological characteristics are recorded. The results show bacterial colony growth in all tested samples, with differences in the number and shape of the colonies depending on the sample source. The bacterial colonies generally appear white, cream, or yellowish, round, smooth, and vary in size. These findings indicate that Loyang Dogan cakes have the potential to be contaminated with microbes during the production and sale process, posing risks to the quality and safety of consumption. Based on the results, it is concluded that improvements in sanitation and food handling practices for traditional products like Loyang Dogan are necessary to ensure their safety for public consumption. Therefore, educating producers and consumers about food hygiene is crucial to raising awareness of the importance of maintaining food quality and safety.

Khusnul Khotimah Rijie; Ardi Mustakim

Polygon : Jurnal Ilmu Komputer dan Ilmu Pengetahuan Alam 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Fish bekasam is one of Indonesia's traditional fermented products that involves the activity of microorganisms, especially lactic acid bacteria (LAB), to produce unique organoleptic, chemical, and microbiological characteristics. The fermentation process of bekasam plays a significant role not only in extending the shelf life of fish but also in creating a distinctive sour taste and texture that differs from other fish products. This study aims to analyze the microbiological community involved in the fish bekasam fermentation process through observation and identification of bacteria using Safranin Violet and Iodine staining techniques. This study employs a literature review approach, examining various references related to the fermentation process, the dominant bacteria species, and the environmental factors that affect the quality of bekasam. The analysis revealed that lactic acid bacteria such as Lactobacillus plantarum, Lactobacillus casei, and Pediococcus spp. play an important role in the fermentation of bekasam fish. These bacteria produce lactic acid, which contributes to the sour taste and plays a role in forming the product's texture. The Safranin Violet and Iodine staining techniques were effective for identifying bacteria based on their cell wall characteristics, with Gram-positive bacteria dominating the fermentation process. Environmental factors such as the fermentation time, salt concentration, and the addition of ingredients like carbohydrates or turmeric extract influence the dynamics of bacterial populations in the fermentation of bekasam. This study also emphasizes the importance of controlling pathogenic bacterial contamination, such as Salmonella spp. and Escherichia coli, to ensure food safety in bekasam products. The findings provide a deeper understanding of the microbiological dynamics in fish bekasam fermentation and the relevance of staining techniques in microbiological analysis, which can be used to improve the quality and safety of traditional fermented products. This study also opens opportunities for developing safer and higher-quality bekasam products.

Rosma Rosma; Jamaluddin Jamaluddin

Aljabar : Jurnal Ilmuan Pendidikan, Matematika dan Kebumian 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study aims to examine and analyze the Islamic educational values ​​contained in the local tradition of Ada' Tuho Ulumanda and its implementation at the Darul Ulum Islamic Boarding School, Popenga Village, Ulumanda District, Majene Regency. The Ada' Tuho tradition is one of the cultural heritages of the Ulumanda community that is full of moral, social, and spiritual values ​​that are closely related to the principles of Islamic education, especially the values ​​of faith, morals, and society. In the context of Muslim society, local traditions are not only seen as cultural symbols, but also function as a medium for transmitting religious values ​​that strengthen Islamic identity while maintaining social harmony. The research method used is a descriptive qualitative approach with data collection techniques through observation, in-depth interviews, and documentation. The data obtained are analyzed thematically to reveal the Islamic educational values ​​contained in the practice of Ada' Tuho and its form of implementation in the Islamic boarding school environment. The results of the study indicate that the Ada' Tuho tradition contains a number of important values, including: the value of monotheism that emphasizes faith and respect for God's power, moral values ​​that include honesty, responsibility, discipline, and respect for parents and others, and social values ​​in the form of solidarity, mutual cooperation, deliberation, and justice in community life. The implementation of these values ​​at the Darul Ulum Islamic Boarding School is carried out through a formal learning process, habituation of worship, exemplary behavior of the ustaz, and strengthening the character of students based on the integration of Islamic values ​​and local wisdom. Thus, the Islamic boarding school plays a role as an agent of preserving religious culture that is able to harmonize Islamic teachings with local traditions constructively, making it relevant to strengthening contextual Islamic education in the modern era.