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The Indonesian Naval Academy (AAL) as a military educational institution requires a large electricity supply to support its operational activities, including in the Sapudi Building of the Engineering Department. This study aims to design a solar energy system to supply the electricity needs for lighting in the building. The method used is Research and Development (R&D) with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Data collection was conducted through direct observation of building conditions, electrical equipment, and solar radiation intensity data in Surabaya. The research results show that the total electricity requirement for lighting in the Sapudi Building is 4.686 kW with a total of 143 lights (96 neon lights and 47 light bulbs). Based on calculations with an average solar radiation of 5.00 kWh/m²/day, the designed system requires 41 units of Solar PV Lesso HPM 550W panel type with 21.3% efficiency and 9 units of Panasonic LC-P12100NA batteries with a capacity of 100Ah arranged in 3 series and 3 parallel configurations. This study proves that the utilization of solar energy can be an efficient and sustainable alternative solution to reduce dependence on conventional electricity in the AAL environment, while supporting the implementation of renewable energy in Indonesian military institutions.

Background: Posterior tooth loss can impact masticatory function, aesthetics, and quality of life. Bridges are a restorative solution, but conventional pontic designs often make it difficult to maintain periodontal hygiene and health. Sanitary pontics offer a design that minimizes tissue contact, facilitates cleaning, and reduces plaque accumulation. Case report: A 23-year-old male patient lost his mandibular right first molar and sought to restore chewing function. After clinical and radiographic examinations, it was decided to restore the edentulous area of tooth 46 using a PFM bridge with a sanitary pontic design. Teeth 45 and 47 underwent abutment preparation, impressions, and fabrication of the bridge. Discussion: The sanitary pontic design has been shown to facilitate oral hygiene, especially under the pontic. The space between the pontic and the alveolar mucosa facilitates effective brushing or flossing, reducing plaque and the risk of gingival inflammation. PFM materials provide appropriate strength and durability for posterior restorations. Conclusion: A Porcelain Fused Metal (PFM) bridge with a sanitary pontic design is an effective restorative alternative for posterior tooth loss, improving hygiene and supporting long-term periodontal health.

This material provides an in-depth overview of the fundamental distinctions between Islamic banks and conventional banks, covering their underlying principles, contract types, operational mechanisms, legal frameworks, and organizational structures. Islamic banks operate based on Islamic values derived from the Qur’an, Hadith, and the rulings of the National Sharia Council (DSN-MUI), emphasizing strict prohibitions on riba, gharar, and maysir. Contracts such as wadiah, mudharabah, musyarakah, murabahah, ijarah, salam, and istishna’ are applied to promote fairness and profit-sharing. In contrast, conventional banks rely on positive law and interest-based systems as their primary source of income. Legally, Islamic banks are supervised by the Sharia Supervisory Board (DPS) to ensure compliance with sharia principles, while conventional banks adhere solely to general financial regulations set by authorities like the Financial Services Authority (OJK) and Bank Indonesia. The operations of Islamic banks include fund mobilization, financing, and financial services without the use of interest, whereas conventional banks earn revenue from the interest spread between deposits and loans. Although both bank types share a similar organizational structure, Islamic banks incorporate an additional layer of sharia oversight. Overall, Islamic banks aim to balance profitability with ethical and spiritual values (falah), while conventional banks primarily focus on maximizing financial returns. This material highlights Islamic banking as an ethical alternative within modern financial practices, promoting justice, sustainability, and broader economic well-being.

Development financing systems in various developing countries, including Indonesia, have been tested by repeated global crises, such as the 2008 financial crisis, the COVID-19 pandemic, and geopolitical tensions since 2020. The economy is highly dependent on external funding, such as foreign loans and foreign direct investment (FDI), making it vulnerable to disruptions and uncertainty in capital flows. This article examines the strategic role of domestic savings as a stabilizer in maintaining the resilience of development financing using a desk study approach. The literature review shows that mobilizing domestic savings through conventional and Islamic financial institutions is crucial for encouraging long-term investment, reducing dependence on external financing, and strengthening national fiscal independence. In the Islamic economy, the rise of yield-based savings instruments, productive waqf, and retail sukuk has helped expand a stable and equitable domestic funding base. Furthermore, this article finds that digital transformation, fiscal incentive policies, and financial literacy are key to increasing public participation in productive savings. Therefore, increasing domestic savings is an economic tool and a national defense strategy in facing ongoing global crises.

Rapid global population growth has led to climate change and agricultural land degradation, posing significant challenges to the stability of global food security. The traditional livestock sector is known to absorb high levels of greenhouse gas emissions that can accelerate natural resource degradation and require innovative and sustainable approaches to meet the demand for animal protein. This study aims to analyze the contribution of cultured meat technology as an ethical and environmentally friendly alternative to improving global food security. This study uses a desk study method that addresses the technical, social, economic, and ethical aspects of cultured meat production. The analysis results indicate that the application of this technology has the potential to reduce land use and carbon emissions by up to 70% compared to conventional livestock systems, in addition to reducing animal suffering and the risk of zoonotic disease transmission. However, its application still faces several obstacles, such as high production costs, dependence on whey-based culture media, and difficulties in halal certification and public acceptance. These findings underscore the importance of synergy between scientists, governments, and religious authorities to ensure the safety, effectiveness, and equivalence of technology with ethical principles and socio-cultural values. With strong regulatory support and ongoing research, cultured meat technology has the potential to be a strategic solution for building a resilient, equitable, and environmentally responsible global food system.

The global economy is increasingly marked by volatility, uncertainty, and disruption, compelling organizations to adopt business agility as a means of survival and competitiveness. Conventional agility emphasizes speed, responsiveness, and innovation, yet often lacks the ethical foundation required for long-term sustainability. In contrast, Islamic economic thought, guided by Maqasid al-Shariah—the preservation of religion, life, intellect, lineage, and wealth—prioritizes justice, fairness, and social responsibility in economic activities. This study analyzes how the principles of Maqasid can be aligned with business agility to form an ethically grounded and adaptive business model. Employing a qualitative research design with a library research approach, the study synthesizes insights from existing literature on agility, Islamic economics, and Maqasid through thematic content analysis. The findings indicate that while agility strengthens resilience and competitiveness, it requires Maqasid as a moral compass to ensure value-driven adaptability. The integration of agility and Maqasid creates a synergy that enables Islamic enterprises not only to withstand global turbulence but also to differentiate themselves as ethical, sustainable, and competitive actors in the global market. This research therefore proposes a Shariah-compliant agility model that balances responsiveness with ethical accountability, offering theoretical contributions to academic discourse and practical implications for Islamic financial institutions, halal industries, and Shariah-based SMEs. The study also highlights the role of policymakers in developing supportive frameworks that foster innovation while safeguarding Shariah compliance. Overall, the study underscores that agility guided by Maqasid is not merely a survival strategy but a pathway to global leadership in ethical and sustainable business practices.

The learning model that can be used to make students active is the Problem-Based Learning (PBL) model. The Problem-Based Learning model is a problem-based learning, where learning is centered on students so that students are required to provide solutions to the problems given. This study aims to determine how much impact the application of the PBL model has in improving student learning outcomes on learning the Basics of Electronic Engineering at SMK Negeri 2 Dumai. The type of research used is quantitative research with a quasi-experimental method using a pretest-posttest control group design. The research subjects consisted of 64 students divided into two groups, namely class X TEI SMK Negeri 2 Dumai as an experimental group that applies the PBL model (36 students) and class X TEI SMK Negeri 3 Dumai as a control group that applies the conventional learning model (28 students). The research instrument was a multiple-choice objective test of 25 items whose validity and reliability had been tested with a Cronbach's Alpha value of 0.843. The data analysis technique used descriptive statistics and Independent Samples T-Test. The results showed a significant difference in learning outcomes between the experimental and control classes, with a t-test value of 4.168 and a significance level of 0.000 (p < 0.05). The experimental class experienced an average increase in learning outcomes of 15.55 points (from 64.78 to 80.33), while the control class only increased by 7.57 points (from 63.43 to 71.00), with a posttest average difference of 9.333 points. Furthermore, the PBL model was also effective in reducing the ability gap between students, as indicated by a decrease in the standard deviation from 9.457 to 8.021. It can be concluded that the implementation of the PBL learning model has a significant impact on improving student learning outcomes in the Fundamentals of Electronic Engineering course at SMK Negeri 2 Dumai.

This study analyzes the mechanism of money creation in Islamic financial institutions by examining its relationship with prudential principles and financial intermediation. The research is motivated by the growth of Indonesia’s Islamic capital market, which reached a capitalization of IDR 5,060 trillion in 2025, yet conceptual challenges remain regarding money creation in line with maqashid al-shariah. The study employs a Systematic Literature Review (SLR) using the PRISMA framework, reviewing 38 relevant academic articles. Findings indicate that money creation in Islamic finance occurs only through real-asset-based activities, differing from the conventional system that relies on credit expansion and interest. Intermediation functions are carried out through partnerships emphasizing fair risk and profit sharing, while the prudential principle ensures controlled monetary expansion. The study concludes that the integration of moral and economic dimensions establishes a fair, stable, and sustainable Islamic monetary paradigm and contributes conceptually to strengthening Islamic financial policy in Indonesia.

The rapid development of technology encourages the change in crime patterns from conventional to digital through the use of electronic devices. This phenomenon makes many individuals and groups use technology not only for positive purposes, but also to gain financial gain illegally. Instagram as one of the most popular social media applications has also become a space for digital crime practices, especially through the creation of fake accounts. Fake accounts are used for various harmful acts such as online fraud, the spread of fake news, the use of identities or photos without permission, acts of bullying and negative comments that trigger conflicts, to the spread of pornographic content. This research aims to identify the forms of fake account practices on Instagram, analyze the causative factors, and evaluate the application of applicable laws, especially Law Number 19 of 2016 concerning Information and Electronic Transactions. The research method used is empirical legal research with a qualitative approach. The data was collected through interviews with investigators from the Directorate of Criminal Investigation of the Metro Jaya Police, academics, and civil society organizations (CSO). The results of the study show that the practice of fake accounts still often occurs due to low digital literacy, weak supervision from platforms, and not optimal law enforcement. Although Article 35 jo Article 51 paragraph (1) of the ITE Law has regulated the prohibition of data and identity manipulation, its implementation still faces a number of obstacles from aspects of legal substance, enforcement structure, and community legal culture. This study recommends the need for collaboration between the government and social media platforms in limiting the creation of fake accounts, improving people's digital literacy, and reformulating legal rules that are clearer and more adaptive to the dynamics of digital crime. These efforts are needed so that the protection of social media users is optimal and able to create a safe digital space.

The role of economics in human life has become increasingly significant in the modern era as it serves as a foundation for meeting daily needs and achieving collective welfare. This study aims to analyze how Islamic economic principles regulate price determination in markets and income distribution to ensure fairness and social balance. The research adopts a qualitative approach through library research by reviewing classical Islamic literature, modern economic works, and Qur’anic interpretations related to economic justice. The findings show that Islam emphasizes justice, equality, and welfare as the foundation of all economic activity. Price setting in Islam must reflect fairness, avoiding exploitation and ensuring that transactions bring mutual benefit to both sellers and buyers. Meanwhile, income distribution is directed toward social equity through the implementation of zakat, infaq, and shadaqah, which serve as instruments for wealth redistribution and poverty alleviation. The implication of this study is that the application of Islamic economic principles can provide a moral and sustainable alternative to conventional capitalist systems by promoting fairness, social responsibility, and economic stability within society.

Low science learning outcomes at the junior high school level are a major problem caused by the dominance of conventional, teacher-centered teaching methods. The purpose of this study is to examine various innovative learning strategies, how effective they are, and their impact on student learning outcomes. The literature review method was used to review national and international articles published between 2020 and 2025 that discuss the application of innovation-based learning strategies in science. The strategy patterns, implementation effectiveness, and their impact on student learning outcomes were analysed using content analysis techniques. The research findings indicate that strategies such as problem-based learning (PBL), project-based learning (PjBL), discovery learning, environmental-based learning, and cooperative learning using the Think-Pair-Share (TPS) method are effective in increasing students' motivation and activity, as well as their learning outcomes in the cognitive, affective, and psychomotor domains. Generally speaking, the strategies are all student-centered. This is demonstrated by the constructivist approach, which emphasises contextual and collaborative learning. The results of this study indicate that implementing a creative learning approach can be an effective way to improve the quality of science learning and student learning outcomes in junior high school.

Corruption in Indonesia has become a systemic and complex issue, posing a threat to economic, social, and political stability. Despite various efforts, including the establishment of the Corruption Eradication Commission and robust law enforcement, Indonesia’s Corruption Perception Index has remained stagnant or declined in recent years. This is primarily due to the inadequacy of conventional audit methods, which struggle to detect complex and hidden corruption schemes. This study examines how the role of investigative audits by the Supreme Audit Agency (BPK) can be optimized through synergy with the Whistleblowing System (WBS) to enhance corruption eradication efforts in Indonesia. Investigative audits, which focus on detecting fraud, are crucial as they can convert audit evidence into legal proof in corruption cases. However, the BPK’s role is often hindered by limited human resources, independence, and weak coordination. Using qualitative research and a literature review, this study analyzes relevant documents, books, scientific journals, and official reports to identify and classify relevant data. The findings indicate that strong synergy between BPK's investigative audits and the WBS is essential. Optimizing these two instruments requires significant reforms, including strengthening whistleblower protection laws, improving inter-agency collaboration, and fostering a robust anti-corruption culture. The study concludes that BPK’s investigative audits are effective in uncovering state losses, but their success depends on follow-up actions and coordination with law enforcement. The WBS can detect corruption early, but its effectiveness is limited by weak whistleblower protection and lack of trust in internal reporting channels.

This study aims to analyze the marketing strategy of the Wadiah Savings Product (Hanabung) at KSPPS Hanada Quwais Sembada using a SWOT approach to identify internal strengths, weaknesses, external opportunities, and threats influencing the institution’s marketing performance. The research employs a descriptive quantitative method supported by qualitative data obtained from interviews with five key informants. Data analysis was conducted using the IFE and EFE matrices to evaluate the weight, rating, and score of each strategic factor. The findings indicate that KSPPS Hanada’s major strengths include strong member loyalty, personalized services, and compliance with sharia principles. The main weaknesses are conventional promotional activities, limited marketing human resources, and insufficient digital innovation. Opportunities arise from increasing public awareness of Islamic finance, while threats come from digital financial service competition and low financial literacy levels. With an IFE score of 3.10 and an EFE score of 2.75, the institution is positioned within a growth strategy. The study highlights the need for more innovative and adaptive marketing strategies through digitalization, human resource development, and continuous financial literacy initiatives.

This study aims to analyze the role of mass media in influencing the escalation of social conflict in society. Mass media, both conventional and digital, have significant power in shaping public opinion and influencing public perceptions of sensitive social issues. In the context of Indonesia's pluralistic society, non-objective and provocative reporting can accelerate the rise of social tensions and exacerbate intergroup conflict. This study uses a qualitative descriptive approach with a literature review method, drawing on sources from various scientific journals, books, and previous research reports. The results indicate that media can act as both a trigger and a mitigator of conflict, depending on how information is presented to the public. Media that prioritizes the principles of peace journalism can help create cross-group communication, foster empathy, and strengthen social solidarity. Conversely, biased and sensational media can exacerbate differences and lead to social disintegration. Therefore, media practitioners require moral responsibility, professional ethics, and social awareness to ensure their function remains oriented toward truth, justice, and peace. Thus, mass media holds a strategic position in building social harmony amidst the diversity of Indonesian society.

This study maps the regulatory landscape of financial technology (fintech), focusing on cryptocurrency regulation at both global and Indonesian levels. Cryptocurrency, one of the fastest-growing fintech instruments, functions as a virtual currency secured by cryptography. Despite lacking physical form, it is widely used for investment, transactions, and speculation, with trust supported by blockchain’s transparency and immutability. However, regulatory frameworks remain fragmented across countries. The research applies a bibliometric approach, using Bibliometrix (R Studio) for descriptive analysis and VosViewer for keyword network visualization. Data were retrieved from Scopus with the keywords “cryptocurrency regulation” and “fintech regulation,” covering 2016–2025. Findings reveal 1,178 documents from 484 sources, contributed by 4,693 authors, with an average of 7.43 authors per document and an international collaboration rate of 24.79%. The annual growth rate reaches 44.31%, with an average of 14.01 citations per document. Keyword analysis identifies four main clusters: financial regulation, green finance and sustainability, decentralized finance (DeFi), and blockchain cybersecurity. This study provides a knowledge map of regulatory evolution from conventional finance to blockchain-based fintech, offering insights for academics, regulators, and industry to balance innovation, consumer protection, and financial stability.

The Child Friendly School policy is an important instrument in protecting children's rights and preventing violence in educational environments. This research aims to evaluate the implementation of the Child Friendly School policy at SD Negeri Kandangan, Krembung District, Sidoarjo Regency using William Dunn's policy evaluation approach. This research uses qualitative methods with a descriptive approach. Data collection techniques were carried out through in-depth interviews, participatory observation, and documentation studies. Research informants were selected using purposive sampling techniques consisting of school principals, teachers, school committees, and students. Data analysis techniques use the Miles and Huberman model which includes data reduction, data presentation, and drawing conclusions. The research results show that the evaluation of policy effectiveness achieves a fairly good level of success in creating a safe and comfortable learning environment, although there are still some teachers who use conventional disciplinary methods. The efficiency evaluation shows that schools optimize limited resources through community participation and village government support. The adequacy evaluation identifies the need for improved facilities such as prayer rooms and special rooms for students with special needs. The equity evaluation shows the school's commitment to providing inclusive educational services without discrimination. The responsiveness evaluation shows high stakeholder satisfaction with child-friendly school programs. The accuracy evaluation confirms that this policy is appropriate for inclusive schools that have students with special needs. This research contributes to the development of educational policy evaluation with a focus on child protection in inclusive schools.  

This study aims to analyze the role of the Selected Topics in Mathematics course in developing Higher Order Thinking Skills (HOTS) among prospective mathematics teachers through a systematic literature review. The review covered 21 articles published between 2020 and 2025, sourced from nationally accredited Sinta-indexed journals and reputable international journals. The research employed the Systematic Literature Review (SLR) method, following the stages of data reduction, data display, and verification and interpretation based on the model by Miles, Huberman, and Saldaña (2014). The analysis revealed that the implementation of problem-based learning and inquiry-based learning strategies is effective in enhancing students’ abilities in analysis, evaluation, and creation. The use of authentic assessments such as projects and reflective rubrics proved to be more comprehensive in measuring higher-order thinking processes compared to conventional tests. Key challenges identified include limited lecturer training, lack of contextual teaching materials, and insufficient technological support. This study confirms the strategic potential of the Selected Topics in Mathematics course in fostering HOTS among prospective teachers and offers recommendations for strengthening the curriculum and developing HOTS-based assessments in higher education.

The rapid advancement of digital technology has significantly influenced how small and medium enterprises (SMEs) connect with consumers. Kampung Lawas Maspati SMEs encounter obstacles in expanding their market due to limited online visibility and reliance on conventional sales approaches. This study aims to develop an e-commerce website that addresses these challenges by focusing on user-centered innovation. Using the Design Thinking method, which includes stages such as empathizing, defining, ideating, prototyping, and testing, user needs and challenges were explored through interviews, surveys, and observations to inform the website development process. The resulting platform is intuitive, responsive, and accessible, enabling SMEs to display their products, manage transactions, and engage with customers effectively. The application of this method not only improves market reach but also strengthens the competitiveness and digital literacy of Kampung Lawas Maspati SMEs. Evaluation results show a high level of consumer satisfaction, reaching 91.87%, indicating that the developed website effectively meets user expectations and supports SME digital transformation.

The execution of Mortgage Rights (Hak Tanggungan) represents legal certainty as regulated in Law Number 4 of 1996 concerning Mortgage Rights. Execution of the collateral object can be carried out through private sale, parate execution, or based on an executorial title. This mechanism reflects good faith and trust between the creditor and debtor in a lending agreement. In line with Sharia principles, the murabahah financing contract also allows for collateral (rahn tasjily), granting the creditor the authority to execute the collateral object if the debtor defaults. This study aims to analyze the implementation of Mortgage Rights execution in Sharia financing, specifically under the murabahah contract. The method used is normative juridical research with a descriptive approach, employing statutory and case study analysis, and based on literature and relevant regulations. The results indicate that land rights can serve as collateral under Mortgage Rights in Sharia financing. This is confirmed in the Supreme Court Decision Number 179K/Pdt/2017, which serves as jurisprudential precedent for Decision Number 3/Yur/2018, where the collateral is executed through a Deed of Granting Mortgage Rights. The position of the creditor in a murabahah contract is equivalent to that in conventional financing, as confirmed in the DSN-MUI Fatwa, thus the creditor retains the right to execute even if the debtor defaults before the due date.

This study aims to analyze the strategies implemented by Hotel Abadi in Serang City to maintain its image and reputation amidst the increasingly competitive hotel industry and pressures caused by the COVID-19 pandemic. A descriptive qualitative approach was used with a SWOT analysis technique to identify the strengths, weaknesses, opportunities, and threats facing the hotel. The results show that Hotel Abadi still relies on the strength of social relationships and loyalty of existing customers as reputation capital, but has not been able to manage its image comprehensively in accordance with the principles of image management theory. The communication strategies used are still conventional, such as banners and direct promotions, and have not yet touched on the realm of digital branding and professional management of customer feedback. On the other hand, the threat from new, more modern hotels that are more adaptive to technological developments is an urgent external challenge that requires a strategic response. Hotel Abadi must also pay more attention to service quality, not only from the physical side but also the overall customer experience. Given the rapid development of technology, management needs to formulate a more targeted and effective digital communication strategy to reach a wider audience through social media and websites. Hotel Abadi is advised to undertake a strategic transformation that is not only promotion-oriented, but also includes strengthening brand identity, improving service quality based on customer needs, and structured reputation management with an image management approach.