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Mathematics education in Indonesia still faces various challenges, one of which is students’ low conceptual understanding due to predominantly conventional teaching methods. Amid the advancement of digital technology, the MathSolver application emerges as an alternative solution to assist students in understanding mathematical material through its automatic problem-solving feature and step-by-step explanations. This study aims to examine the utilization of the MathSolver application as a mathematics learning medium using a literature review approach. Data sources were obtained from relevant journals or scientific articles published between 2018 and 2024. The review findings indicate that the use of MathSolver can enhance students' conceptual understanding, support independent learning, and increase motivation to learn mathematics. However, there is also a risk of misuse, where students may rely on the application merely to obtain answers without understanding the underlying processes. Therefore, active teacher involvement is essential to guide the wise use of such applications. In conclusion, MathSolver holds significant potential as an effective and adaptive learning tool in the digital era.

Beauty products have become a promising business, especially after the COVID-19 pandemic. Various brands have achieved high sales figures, one of which is Skintific products. This study aims to analyze the role of micro-influencers in increasing brand awareness of Skintific products. The study was conducted using a descriptive qualitative approach. Research data was obtained from literature reviews, digital observations, and official publications related to the topic. The results of the study indicate that micro-influencers play a significant role in increasing brand awareness for Skintific products. With a higher engagement rate compared to macro-influencers, micro-influencers are able to build closer and more authentic relationships with their audience, making their recommendations more trustworthy than conventional advertisements. Despite having a smaller number of followers, micro-influencers demonstrate greater effectiveness in creating engaging content such as product reviews, tutorials, and unboxing videos, which increase consumer interest and trust in the product. Research data shows that micro-influencers' engagement rate (5.07%) is higher than that of macro-influencers (3.25%), despite their more limited reach. The success of this marketing strategy is also supported by the use of social media platforms such as Instagram and TikTok, which enable the distribution of interactive visual content and expand brand awareness organically. With increased audience engagement, Skintific has not only succeeded in strengthening brand awareness but also in building product credibility, which ultimately contributes to increased consumer interest and purchasing decisions.

This study examines the market mechanism from the perspective of Islamic economics as a response to conventional economic systems that tend to emphasize either free-market principles or full government intervention. In Islam, the market mechanism is governed by principles of justice, transparency, and balance among the interests of individuals, the state, and society. This research highlights the thoughts of classical Islamic scholars such as Abu Yusuf, Ibn Taymiyyah, Al-Ghazali, and Ibn Khaldun, who had already elaborated on the concepts of markets, pricing, supply and demand, and ethical conduct in transactions long before Western economists developed similar ideas. Using a qualitative approach and literature review, this article analyzes various market distortions such as ihtikar (hoarding), tadlis (fraud), riba (usury), and gharar (uncertainty), as well as the role of government in limited intervention to maintain balance and fairness. The findings show that the Islamic market mechanism is not solely focused on economic efficiency, but is also deeply rooted in moral and spiritual values.

The #KaburAjaDulu phenomenon that emerged in early 2025 became a digital expression of Generation Z Indonesia towards various social, economic and political unrest in the country. This hashtag not only reflects the desire to migrate, but also symbolizes criticism of the national situation that is considered not to provide hope and space to develop for young people. This research uses a qualitative approach with the descriptive analysis, and utilizes constructivism theory in international relations and social identity theory to understand the dynamics of Generation Z's increasingly transnational identity. Through social media and diaspora support, Gen Z forms a global community that reinforces a collective narrative of seeking a future beyond national borders. Their identities are no longer confined to conventional nationalism, but are continuously negotiated through cross-border interactions and diasporic experiences. This research concludes that #KaburAjaDulu is not just a temporary trend, but a reflection of the transformation of youth identity in the era of globalization and digitalization. The findings highlight the importance of policies that are more inclusive and responsive to the needs of the younger generation so that they not only become global actors, but also still feel a sense of belonging and want to build the homeland.

The pharmaceutical industry produces solid, liquid, and gaseous waste containing active pharmaceutical ingredients that pose serious environmental risks. These wastes can disrupt ecosystems and accelerate antimicrobial resistance. This systematic literature review examines pharmaceutical waste concepts, classifications, characteristics, and relevant regulatory frameworks. It also addresses ecotoxicological effects on aquatic and terrestrial ecosystems, antibiotic contamination and resistance, water and soil pollution, treatment technologies, industrial policies, and best practices. Findings show that conventional wastewater treatment is largely ineffective at removing pharmaceutical residues, resulting in their presence in surface water, soil, and even drinking water. Compounds such as β-blockers, cytostatics, antibiotics, and hormones harm aquatic life by impairing reproduction and causing mutations. Antibiotic-laden industrial waste contributes to the emergence of resistant bacteria. Recommended treatment methods include biothermal processes, advanced oxidation (e.g., UV/H₂O₂, ozonation), adsorption (activated carbon), coagulation-flocculation, and controlled incineration. Stronger enforcement of hazardous waste regulations (e.g., Government Regulation No. 101/2014, Ministry of Environment and Forestry Regulation No. 56/2015) and adherence to WHO (2025) guidelines are essential. In conclusion, multisectoral collaboration (One Health), improved waste treatment capacity, and adoption of best practices are crucial to preventing pharmaceutical pollution and promoting environmental sustainability.

This research aims to improve the learning outcomes of fifth grade elementary school students in Natural and Social Sciences (IPAS) subjects through the application of the Role Playing method.  The Role Playing method was chosen because it is considered effective in improving students' conceptual understanding and critical thinking skills, as well as motivating students to actively participate in the learning process. This research uses an experimental method with a quasi-experimental pretest-posttest control group design. The research sample consisted of two fifth classes in an elementary school, namely an experimental class taught using the Role Playing method and a control class taught using conventional methods. Data was collected through student learning outcomes tests before and after treatment. Data were analyzed using the t-test to compare the differences in average learning outcomes between the experimental class and the control class. The research results showed that there was a significant difference between the learning outcomes of experimental class and control class students after the Role Playing method was applied.  The average learning outcomes of experimental class students increased significantly compared to the control class.  In conclusion, the Role Playing method is effective in improving the learning outcomes of fifth grade elementary school students in science and science subjects.  This research recommends that teachers can apply the Role Playing method in science learning to increase students' understanding and interest in learning.

The teaching of Indonesian language in elementary schools plays a crucial role in developing students' literacy skills, particularly in narrative writing. However, in practice, many students struggle with generating ideas, constructing storylines, and utilizing proper language structures. This study aims to assess the effectiveness of the Contextual Teaching and Learning (CTL) approach in enhancing narrative writing skills among fifth-grade elementary students. A quasi-experimental design with a pretest-posttest control group approach was employed. The study involved two groups: the experimental group received instruction based on CTL, while the control group was taught using conventional methods. Data analysis indicated a significant improvement in the narrative writing skills of students in the experimental group compared to the control group. The CTL approach was shown to be effective in improving students' learning outcomes by relating lesson content to real-life experiences, while also fostering active participation and creativity. These findings suggest that CTL can be an effective instructional strategy for teaching writing in elementary schools.

The problem-based learning (PBL) model is an approach that directs students to learn and work together to solve problems in the real world. Referring to the results of observations that researchers conducted at SMPN 2 nganjuk, still using a conventional learning model. This can be seen from the knowledge and skills of students who have not met the minimum standards set by the school. So that researchers provide solutions in the form of applying PBL-based learning models in the subject matter of long jump hanging style. This study aims to develop and test the feasibility of PBL-based long jump hanging style learning model products. This type of study is Research and Development (R&D) whose stages include conducting needs analysis, identifying learning models, developing learning models, evaluation, small group tests and large group tests. This research data collection uses instruments in the form of observations, interviews, and questionnaires. The results of the percentage calculation by 2 learning experts amounted to 97.08% and the average of the material experts was 95.00%. Furthermore, for the small group trial, 3 PJOK teachers got an average score of 92.16% and the value of 12 VIII grade students averaged 94.44%. As for the large group test on 4 PJOK teachers obtained an average of 93.75% and the value of 34 VIII grade students averaged 96.74%. So it is concluded that the product development of a PBL-based learning model for long jump hanging style material for class VIII SMP Negeri 2 Nganjuk is declared very feasible to use.

This research investigates how effective the use of instructional media based on PowerPoint (PPT), when integrated with mime techniques, is in improving students' mastery of vocabulary. The study is driven by the recurring problem of students having a limited range of vocabulary, which frequently becomes an obstacle in the process of acquiring language skills. A quantitative research method with a quasi-experimental framework was employed, involving two separate groups of participants: an experimental class exposed to mime-supported PPT instruction, and a control class taught using traditional methods without the aid of visual media. To measure learning outcomes, both pre-tests and post-tests were administered, and the data obtained were examined using an independent sample t-test. The experimental group was taught using the تقنيّة التقليد الحركي technique enhanced by multimedia presentation, while the control group relied solely on conventional instruction. The analysis indicated a notable he findings revealed a notable enhancement in the vocabulary skills of the experimental group, demonstrated by an increase in their average post-test scores. Scores increasing from 47.59 to 77.59. In contrast, the control group showed a more moderate gain, from 48.33 to 63.67. These results underscore the value of integrating PowerPoint into the تقنيّة التقليد الحركي approach, which appears to significantly reinforce vocabulary retention and engagement. Consequently, this study advocates for more creative and interactive strategies in Arabic language instruction, especially in addressing persistent vocabulary learning challenges.

This study aims to determine the effect of the Structural Analytic Synthetic (SAS) method on second-grade elementary students' ability to write in cursive. Writing, especially cursive writing, is an essential part of learning the Indonesian language at the elementary level. However, many students still struggle with this skill. The SAS method is believed to help students understand word structures step by step—from full sentences, words, syllables, to letters—thus making the writing process easier. This research uses a quantitative approach with a quasi-experimental design and a nonequivalent control group model. The sample consisted of two classes: the experimental class received treatment using the SAS method, while the control class used conventional methods. The instrument used was a cursive writing test (pretest and posttest), and data were analyzed using a t-test with the assistance of SPSS. The results show a significant difference between the posttest scores of the experimental and control groups, with a significance value of 0.000 < 0.05. This indicates that the use of the SAS method effectively improves the cursive writing skills of second-grade elementary students.

This paper discusses the concept of demand and supply, both from the perspective of conventional economics and Islamic economics. In conventional economics, the relationship between price and quantity of goods demanded or offered is explained through basic laws that are widely known. Several simple illustrations, such as the case of chili prices and children's clothes, are used to facilitate readers' understanding of the movement of the curve and market equilibrium. Meanwhile, in Islamic economics, the principle of demand and supply still applies, but is framed by sharia values ​​that emphasize justice, ethics, and social responsibility. Consumption and production are not solely directed at profit, but also consider aspects of usefulness and sustainability. Thus, Islamic economics offers an approach that is not only rational, but also morally charged.

Financial innovation plays a crucial role in increasing people's access to economic services, especially in the ever-evolving digital era. Through various forms of innovation such as digital financial services, fintech, mobile banking, and electronic payment systems, people, including those in remote areas—have made it easier to reach banking, investment, and financing services. These innovations help overcome various conventional barriers, such as limited physical infrastructure, high transaction costs, and the unaffordability of formal financial services. In addition, the presence of financial technology also expands financial inclusion by providing products and services that are more flexible, cheap, and easily accessible through mobile devices. This not only encourages local economic growth, but also empowers micro, small, and medium enterprises (MSMEs) to develop their businesses. However, challenges remain, such as the need for financial literacy, consumer data protection, and adequate regulatory oversight. Therefore, synergy between the government, financial institutions, technology providers, and the community is important to ensure that financial innovation can be utilized optimally and sustainably in promoting inclusive economic prosperity. Financial innovation is not just a technological advancement, but a strategic solution towards economic justice.

Background: The global energy transition requires low-carbon solutions that can be integrated into existing thermal systems without drastic infrastructure changes. Hydrogen blending in conventional combustion systems has emerged as a promising pathway to reduce carbon emissions while maintaining operational flexibility. Objective: This study aims to experimentally evaluate the effect of hydrogen blending ratios (0–100% by volume) on thermal efficiency, CO₂ emissions, and NOx emissions, and to determine the optimal blending range based on technical and economic feasibility. Methods: An experimental thermal system prototype was developed and tested under controlled conditions with three repetitions per operating point. Performance parameters included combustion temperature, fuel consumption rate, and thermal efficiency, while emissions of CO₂ and NOx were measured using a calibrated gas analyzer. Data were analyzed using descriptive statistics, one-way ANOVA at a 0.05 significance level, confidence interval estimation, and linear regression to examine the relationship between hydrogen fraction and emission reduction. Results: The findings indicate that increasing hydrogen fraction significantly improves thermal efficiency, reaching 87.5% at 100% hydrogen, while CO₂ emissions decrease linearly to zero. However, NOx emissions increase with higher hydrogen content due to elevated combustion temperatures. Statistical analysis confirms that hydrogen ratio has a significant effect on efficiency and emissions, with a strong linear correlation between hydrogen fraction and CO₂ reduction. A blending range of 40–60% hydrogen provides the most balanced performance in terms of efficiency improvement, emission reduction, and cost feasibility.

This meta-review study presents a comprehensive evaluation of the effectiveness of mental health policies targeting refugees from the Middle East based on a systematic analysis of 87 policies issued across 12 refugee-hosting countries during the period from 2015 to 2023. Employing the PRISMA approach and thematic analysis, this research found that only 34.5% of all reviewed policies met the World Health Organization's minimum standards regarding mental health services for refugees. In comparison, the effective implementation rate of those policies meeting the standards reached only 28.7% (CI 95%, p<0.001). Findings from the logistic regression analysis revealed a significant correlation between the scale of mental health budget allocations and recovery rates from PTSD among refugee populations, where every 10% increase in budget allocation corresponded to a 15.3% reduction in PTSD prevalence (r=0.78, p<0.001). Furthermore, the meta-analysis results from this study demonstrated that community-based policies were 2.4 times more effective (OR=2.4, CI 95%: 1.8–3.1) than those employing institutional approaches. Hence, diverging from the conclusions posited by Turrini et al. (2019) and Sijbrandij (2017), which emphasized clinical interventions, this study has instead affirmed that integrating cultural-spiritual approaches with conventional therapy can enhance treatment success by 47.2%. Additionally, these findings expand the conceptual framework previously proposed by Watters (2001) on holistic approaches by identifying five key elements that form the foundation of effective mental health policies: universal access, cultural sensitivity, community empowerment, service integration, and program sustainability.

Background: Structural Health Monitoring plays a critical role in ensuring the safety, reliability, and sustainability of high performance composite structures used in aerospace, civil infrastructure, and mechanical systems. Conventional externally mounted sensors often face challenges related to environmental interference, maintenance complexity, and long term stability. Objective: This study aims to develop and validate an integrated smart composite monitoring system with embedded sensing capabilities that enhances damage detection accuracy and operational durability under varying mechanical stress conditions. Method: Smart composite specimens were fabricated by embedding fiber optic and piezoelectric sensors within fiber reinforced polymer laminates, followed by tensile, fatigue, and vibration testing. Signal processing techniques including time frequency analysis were applied to extract damage sensitive features, which were then classified using machine learning algorithms to distinguish healthy and damaged structural states. Results: The experimental findings demonstrate high damage detection capability, stable sensor performance under cyclic loading, improved reliability compared to conventional monitoring approaches, and consistent monitoring accuracy throughout the fatigue life of the specimens. The integration of embedded sensing and data driven analytics significantly enhances structural response interpretation and supports predictive maintenance strategies.

The development of information technology, particularly the internet and social media, has significantly impacted how the Church functions and interacts with its congregation. This transformation is not only technological but also touches upon fundamental theological aspects. This article aims to examine the changes in the meaning, function, and identity of the Church in the context of digitalization, with a focus on comparing the pre-internet and post-internet eras. Through a systematic theological approach, this analysis explores how the Church, as a community of faith and a spiritual organism, must re-understand its existence amidst the increasingly dominant presence of digital media in believers' lives.In the pre-internet era, church life revolved around physical gatherings, conventional liturgies, and direct spiritual authority. However, in the digital age, new forms of ministry have emerged, such as online worship services, virtual communities, and the dissemination of the Word through social media and other digital platforms. These changes offer opportunities to reach a broader audience but also pose serious challenges such as digital individualism, theological distortion, and a crisis of spiritual authority.This article concludes that the Church needs to develop adaptive ministry strategies while remaining faithful to the essence of Christian spirituality. By maintaining a balance between online and offline ministries and strengthening theological understanding amidst the rapid flow of information, the Church can remain relevant and effective in carrying out its mission.

This study aims to analyze the role of the Quick Response Code Indonesian Standard (QRIS) as a key driver in the development of Financial Technology (Fintech) that contributes to increasing financial inclusion in Indonesia. Using qualitative methods through a descriptive approach, this study focuses on exploring and understanding phenomena related to QRIS implementation and its impact on the national digital financial ecosystem. Research data was obtained through literature studies from various relevant primary and secondary sources, thus providing a strong theoretical and practical foundation. The results show that QRIS functions as a link between cross-platform digital payment ecosystems, enabling interconnection between service providers, and facilitating non-cash transaction processes in a faster, safer, and more efficient manner. Furthermore, QRIS not only supports the development of financial technology in urban areas but also expands the reach of digital financial services to remote areas that were previously difficult to access by conventional banking services. Thus, QRIS plays a significant role in encouraging public participation in the formal financial system and helping achieve the national financial inclusion targets set by the government. This study concludes that QRIS is a strategic instrument in strengthening the foundation of Indonesia's digital economic transformation. Increasing financial inclusion not only impacts equitable access to financial services but also contributes to more inclusive and sustainable economic growth. These findings illustrate that QRIS is a technological policy innovation with strategic value, not only as a transaction tool but also as a driving force for digital financial integration in the era of national economic transformation. QRIS is a strategic tool in realizing national financial inclusion targets and supporting the vision of transformation towards Indonesia's digital economy.

The RADEC (Read, Answer, Discuss, Explain, and Create) learning model is an innovative approach that aims to improve students' critical thinking skills in elementary schools. This study aims to explore the effectiveness of implementing the RADEC model in the context of elementary school learning and its impact on the development of students' critical thinking skills. The RADEC approach emphasizes active student involvement through five main stages: reading to build initial understanding, answering questions to test reasoning power, discussing to broaden perspectives, re-explaining concepts to deepen understanding, and creating products or solutions as a concrete manifestation of the critical thinking process. This study used a quantitative method with a quasi-experimental design and involved fifth grade students in a public elementary school. The instruments used were critical thinking tests and student activity observation sheets. The results showed that the implementation of the RADEC model significantly increased students' critical thinking skill scores compared to conventional learning models. In addition, students showed higher enthusiasm and learning independence during the learning process. These findings indicate that the RADEC model is not only able to build a stronger understanding of concepts but also encourages students to actively analyze, evaluate, and create ideas. Therefore, the RADEC model is recommended as an effective alternative learning strategy to improve the quality of learning and critical thinking skills of students at the elementary school level.

 This study aims to compare student learning outcomes between digital media-based learning and conventional methods. The research subjects consisted of two classes: Class VIII E as the control class, which learned through lectures, dictation, and summarizing, and Class VIII F as the experimental class, which used PowerPoint, the Kahoot application, and instructional videos. The study was conducted over four meetings within four weeks. Pretests and posttests were used to measure learning improvement and analyzed using the n-gain formula. The results showed that the average n-gain score of the control class was higher than that of the experimental class. This indicates that although the experimental class used interactive digital media, the control class demonstrated better comprehension of the material, most likely due to the summarizing activity that helped students focus and internalize the content more deeply. These findings suggest that conventional methods involving active student engagement through note-taking and summarizing still have high effectiveness in learning, and the implications may serve as a consideration in designing instructional strategies suited to students' learning characteristics.

The purpose of this activity is to find out how much knowledge the local community in Patimban Village has regarding the internet to avoid fraud on online shopping sites or E-commerce. This Community Service Activity uses a field observation method (direct observation) by visiting people's homes through the distribution of information paper. The results of the activity concluded: first, online fraud is in principle the same as conventional fraud through the use of electronic systems (computers, internet, telecommunications devices) as a criminal act of fraud based on Law Number 11 of 2008 concerning Information and Electronic Transactions. Law enforcement officers often experience difficulties and obstacles in ensnaring perpetrators of fraud; and second, this criminal act of fraud can be charged with Article 378 of the Criminal Code as a criminal act of fraud or Article 28 paragraph (1) of the ITE Law concerning the regulation of the spread of false and misleading news that is detrimental to consumers. Or it can be charged based on both articles at once, namely, 378 of the Criminal Code in conjunction with Article 28 paragraph (1) in conjunction with Article 45 paragraph (1) of Law No. 11 of 2008 concerning fraud and/or ITE crimes.