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All Journal Journal of Computer Science Advancements Journal of Noesantara Islamic Studies Journal of Selvicoltura Asean International Journal of Educatio Elementaria and Psychologia Research Psychologie, Orientation et Conseil Journal of Loomingulisus ja Innovatsioon Journal of Biomedical and Techno Nanomaterials Journal of Social Entrepreneurship and Creative Technology Journal Markcount Finance Sharia Oikonomia Law Journal Journal of World Future Medicine, Health and Nursing International Journal of Educational Narratives Rechtsnormen: Journal of Law International Journal of Language and Ubiquitous Learning Journal of Social Science Utilizing Technology
Ryan Teo
Republic Polytechnic
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Law, Crime, Criminology & Criminal Justice Other

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ENTERPRISE INFORMATION SYSTEMS ARCHITECTURE SUPPORTING E BUSINESS AND E GOVERNMENT DIGITAL TRANSFORMATION Ryan Teo; Fatimah Fahurian; Triyugo Winarko
Journal of Computer Science Advancements Vol. 4 No. 2 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jsca.v4i2.3782

Abstract

The digital transformation of both e-business and e-government is increasingly dependent on the effective implementation of Enterprise Information Systems (EIS) architecture. As organizations seek to optimize their operations, enhance transparency, and improve service delivery, the need for robust EIS architectures has become critical. These architectures facilitate the integration of diverse systems, ensuring interoperability, scalability, and security. This study investigates how EIS architecture supports the digital transformation efforts in e-business and e-government, focusing on its impact on operational efficiency, data management, and stakeholder trust. A qualitative research design is employed, utilizing case studies, interviews, and document analysis from both public and private sector organizations. The findings reveal that EIS architecture significantly enhances the operational efficiency of both e-business and e-government, improving data security and reducing administrative bottlenecks. Institutions with fully integrated EIS reported improvements in service delivery, stakeholder satisfaction, and overall transparency. The research concludes that adopting modern EIS architectures is essential for successful digital transformation, particularly in sectors where data integrity and governance are paramount.
THE ROLE OF COGNITIVE DEVELOPMENT IN ADOLESCENCE: IMPLICATIONS FOR EDUCATION AND MENTAL HEALTH Sun Wei; Chen Mei; Ryan Teo
Research Psychologie, Orientation et Conseil Vol. 3 No. 3 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/rpoc.v3i3.3936

Abstract

Adolescence is a critical developmental period marked by rapid cognitive, emotional, and social changes that significantly influence learning processes and mental health outcomes. Cognitive development during this stage plays a central role in shaping adolescents’ academic engagement, self-regulation, and psychological well-being, yet it is often examined separately from educational and mental health perspectives. This study aims to investigate the role of cognitive development in adolescence and its implications for both education and mental health within an integrated framework. The research employed a quantitative cross-sectional design involving adolescents aged 13–18 years enrolled in secondary education. Data were collected using standardized instruments measuring cognitive development, educational engagement, and mental health well-being, and were analyzed using descriptive and inferential statistical techniques. The findings reveal significant positive relationships between cognitive development and educational engagement, as well as between cognitive development and mental health indicators. Adolescents with higher levels of cognitive functioning demonstrated stronger academic engagement and better emotional regulation. These results indicate that cognitive development functions as a key mechanism linking learning and mental health during adolescence. The study concludes that educational practices and mental health interventions should prioritize cognitive development as a foundational element.
Deforestation and Forest Degradation: Drivers and Impacts on Biodiversity in Southeast Asia Megan Koh; Ryan Teo; Ethan Tan
Journal of Selvicoltura Asean Vol. 1 No. 4 (2024)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jsa.v1i4.1666

Abstract

Deforestation and forest degradation in Southeast Asia pose significant threats to biodiversity and ecosystem services. Rapid economic development, agricultural expansion, and illegal logging are key drivers of these environmental changes. Understanding the underlying factors and their impacts is crucial for formulating effective conservation strategies. This research aims to identify the primary drivers of deforestation and forest degradation in Southeast Asia and to assess their impacts on biodiversity. The study seeks to provide insights that can inform policymakers and conservationists in addressing these pressing environmental issues. A mixed-methods approach was employed, combining quantitative data analysis from satellite imagery and forest cover assessments with qualitative interviews of local stakeholders. Case studies from Indonesia, Malaysia, and Thailand were analyzed to explore the relationships between human activities, forest loss, and biodiversity impacts. Findings reveal that agricultural expansion, particularly palm oil and timber production, is the leading cause of deforestation in the region. Biodiversity impacts include habitat loss, species extinction, and disruption of ecological processes. Local communities reported diminished resources and increased human-wildlife conflicts as direct consequences of forest degradation. The study concludes that urgent action is needed to mitigate deforestation and its ecological impacts in Southeast Asia. Effective policies must address the drivers of forest loss while promoting sustainable land-use practices. Collaborative efforts among governments, local communities, and conservation organizations are essential to safeguard biodiversity and enhance ecosystem resilience in the region.
THE IMPACT OF FOREST FIRES ON TIMBER PRODUCTION AND FOREST ECOSYSTEMS Megan Koh; Ava Lee; Ryan Teo
Journal of Selvicoltura Asean Vol. 2 No. 1 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jsa.v2i1.2034

Abstract

Forest fires are a significant environmental issue, especially in tropical regions, where they have been known to disrupt ecosystems and hinder sustainable timber production. The increasing frequency and intensity of forest fires, driven by both natural causes and human activity, pose a major threat to forest health and biodiversity. Additionally, the economic impact on the timber industry is profound, with fires damaging forests, destroying timber resources, and reducing overall timber yields. This study investigates the effects of forest fires on timber production and forest ecosystems, focusing on their long-term consequences. This research aims to assess the impact of forest fires on timber production, as well as the broader effects on forest ecosystems, including biodiversity loss, soil degradation, and carbon emissions. The study also seeks to explore potential mitigation strategies for reducing fire risks and promoting the recovery of forest ecosystems post-fire. A mixed-methods approach was employed, combining remote sensing data, field surveys, and interviews with forestry experts and local communities. The study analyzed fire-affected areas in Southeast Asia, comparing timber production data before and after fire events. Ecological indicators, such as species diversity and soil quality, were also measured to assess the impact on the forest ecosystem. The findings show a significant decline in timber production following forest fires, with affected areas showing reduced growth rates and a lower timber yield in the years after the fire. Forest ecosystems also experienced biodiversity loss, with long-term degradation of soil quality and carbon sequestration capacity. Forest fires have a substantial negative impact on both timber production and forest ecosystems. Effective fire management strategies are crucial for minimizing damage and supporting the recovery of forest resources and biodiversity.
GREEN JOBS AND ECOLOGICAL JUSTICE: THE FUTURE OF COMMUNITY-BASED FOREST MANAGEMENT THROUGH SOCIAL FORESTRY SCHEMES Ryan Teo; Lucas Wong; Megan Koh
Journal of Selvicoltura Asean Vol. 2 No. 4 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jsa.v2i4.2740

Abstract

Global climate imperatives necessitate a transition to a Green Economy, placing Community-Based Forest Management (CBFM) at the forefront. However, existing Social Forestry (SF) schemes frequently prioritize conservation compliance over generating resilient, high-quality livelihoods, leading to persistent community precarity and equity concerns despite high participation rates. This study aims to systematically analyze the quality and stability of green jobs created within SF schemes and, critically, to develop a Green Jobs-Ecological Justice (GJEJ) Framework that links labor outcomes with the ethical tenets of Recognition, Participation, and equitable Distribution. A sequential explanatory mixed-methods design (QUAN to QUAL) was employed. The quantitative phase utilized a structured survey (N=450) to map job stability and demographic disparities. This was followed by qualitative case studies at four purposively selected sites (n=80 key informants) to investigate the institutional mechanisms of ecological justice. Findings revealed a 78% participation rate but a low overall Income Stability Index (45.9), concentrated in low-skill, seasonal labor. Inferential analysis demonstrated that the institutional Recognition of Local Ecological Knowledge significantly correlates with reduced income disparity (? = -0.38), whereas deficient Participation mechanisms reinforce existing demographic inequalities, particularly affecting women and youth. The study concludes that SF success is not determined by job volume but by the institutionalization of justice. The GJEJ Framework is proposed as the necessary policy tool to ensure the future of forest management is truly sustainable, resilient, and equitable.
THE EFFECTIVENESS OF THE USE OF LEARNING VIDEOS ON THE UNDERSTANDING OF MATHEMATICS CONCEPTS IN ELEMENTARY SCHOOLS Abul Walid; Ethan Tan; Ryan Teo
International Journal of Educatio Elementaria and Psychologia Vol. 2 No. 3 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/ijeep.v2i3.2394

Abstract

The abstract nature of many mathematical concepts presents a significant pedagogical challenge in elementary education, often leading to difficulties in student comprehension. The integration of multimedia, such as learning videos, offers a promising avenue to make these concepts more concrete and accessible. This study aimed to quantitatively determine the effectiveness of using learning videos on elementary school students’ understanding of mathematics concepts. A quasi-experimental, pre-test/post-test non-equivalent control group design was employed. The sample consisted of two fifth-grade classes, with one class (N=32) assigned as the experimental group utilizing learning videos and the other (N=32) as the control group receiving conventional, textbook-based instruction. Students’ conceptual understanding was measured using a validated, standardized mathematics concept test. Data were analyzed using an independent samples t-test and normalized gain scores. The results revealed a statistically significant difference in the post-test scores between the two groups (p < 0.01), with the experimental group demonstrating a substantially higher mean score and a significantly greater normalized gain. The study concludes that the use of learning videos is a highly effective instructional strategy for improving students’ understanding of mathematical concepts in elementary school.
Development of Innovative Business Models for MSMEs in the Indonesian Tourism Sector Ethan Tan; Sofia Linm; Ryan Teo
Journal of Loomingulisus ja Innovatsioon Vol. 1 No. 5 (2024)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/innovatsioon.v1i5.1711

Abstract

The Indonesian tourism sector plays a significant role in the national economy, with small and medium-sized enterprises (MSMEs) forming a crucial part of the industry. However, the sector faces several challenges, including market volatility, the impact of the COVID-19 pandemic, and the need for digital transformation. Innovative business models are essential for MSMEs to remain competitive and sustainable in this dynamic environment. This study aims to explore the development of innovative business models for MSMEs in the Indonesian tourism sector, focusing on the factors that drive innovation and the strategies that enable MSMEs to adapt to changing market conditions. The research employs a mixed-methods approach, combining qualitative interviews with MSME owners and quantitative surveys to gather insights into the factors influencing innovation. The findings reveal that digitalization, community-based tourism, and sustainable practices are key drivers of innovation among MSMEs in the sector. However, challenges such as limited access to capital, lack of technical expertise, and inadequate government support hinder the widespread adoption of these innovative models. The study concludes that developing tailored support systems, promoting digital literacy, and encouraging collaboration between MSMEs and local governments are essential to fostering innovation in the tourism sector. These findings contribute to the academic literature on innovation in emerging markets and provide practical recommendations for policymakers and MSMEs.
The Link Between Multicultural Experiences and Creative Performance: A Meta-Analysis Khoiriyah Khoiriyah; Ethan Tan; Ryan Teo
Journal of Loomingulisus ja Innovatsioon Vol. 2 No. 5 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/innovatsioon.v2i5.2607

Abstract

Multicultural experiences have increasingly been recognized as a catalyst for creativity by expanding cognitive flexibility, perspective-taking, and integrative thinking. However, empirical findings on the strength and consistency of this relationship remain fragmented across studies. This research aims to synthesize existing evidence through a meta-analysis examining the link between multicultural exposure and creative performance. A total of 68 peer-reviewed studies (N = 12,457 participants) were systematically selected from major academic databases, including Scopus, Web of Science, and PsycINFO. Effect sizes were computed using a random-effects model to account for cross-study heterogeneity. Moderator analyses explored contextual factors such as type of multicultural experience (living abroad, cross-cultural training, or diversity interaction), creativity domain (divergent thinking, creative problem-solving, and innovation), and cultural distance. The meta-analytic results revealed a moderate positive effect size (r = 0.34, p < 0.001), indicating that individuals with higher levels of multicultural exposure consistently demonstrate enhanced creative performance. Living abroad showed the strongest effect among all experience types, particularly in tasks involving divergent and integrative thinking. The findings confirm that multicultural engagement fosters creativity by broadening cognitive schemas and enhancing openness to novelty.
CODING REVOLUTION: HOW AI AGENTS ARE TAKING OVER SOFTWARE REPOSITORY MAINTENANCE Ryan Teo; Ava Lee; Sofia Lim
Journal of Computer Science Advancements Vol. 3 No. 6 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jsca.v3i6.3322

Abstract

The rapid expansion of global software infrastructure has created a critical bottleneck, as human developers struggle to manage escalating technical debt and complex repository maintenance. This research explores the transformative shift toward “Autonomous Repository Management” (ARM), where AI agents transition from passive assistants to independent maintainers. The primary objective is to evaluate the efficacy of agentic architectures in performing end-to-end maintenance tasks across diverse software ecosystems. Employing a longitudinal experimental design, this study utilized a purposive sample of 50 open-source repositories, applying a custom “RepoHealth-Bench” framework to measure performance. Findings indicate that AI agents reduced technical debt by 31.5% in legacy systems and achieved a 96.5% patch success rate in standardized libraries, significantly outperforming human-centric benchmarks in speed and security remediation. Inferential analysis reveals a strong correlation between repository documentation quality and agent reliability, suggesting a “compounding health” effect through iterative machine-led refactoring. The study concludes that the “Coding Revolution” effectively reverses software entropy, shifting the developer's role from manual execution to high-level orchestration. These results provide a foundational blueprint for integrating autonomous digital workforces into the modern software development lifecycle, marking the end of the manual maintenance era.
DEVELOPMENT OF A NANO PARTICLE VACCINE TO PREVENT ZIKA VIRUS INFECTION Ethan Tan; Lucas Wong; Ryan Teo; Muntasir Muntasir
Journal of Biomedical and Techno Nanomaterials Vol. 2 No. 1 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jbtn.v2i1.2021

Abstract

Zika virus is a mosquito-borne flavivirus that causes severe birth defects in newborns. Effective preventive measures are urgently needed due to the global spread of the virus. To develop a nanoparticle-based vaccine to prevent Zika virus infection by enhancing immune responses and ensuring safety. A multidisciplinary approach combining virology, immunology, and nanotechnology was used. Laboratory animals and human volunteers were included in the study. The nanoparticle vaccine was characterized using DLS and electron microscopy, and its immunogenicity was tested using ELISA and flow cytometry. Preclinical and clinical trials were conducted to assess the vaccine's efficacy and safety. The nanoparticle vaccine induced strong and long-lasting immune responses, reducing Zika virus infection rates by 85% in mice and 80% in non-human primates. The vaccine showed high titers of neutralizing antibodies and significant cellular immune responses without adverse effects. The nanoparticle vaccine demonstrated high efficacy and safety in preventing Zika virus infection, providing a promising new approach to vaccine development. Further clinical trials are needed to validate these findings and optimize vaccine production for widespread use.
Co-Authors Abul Walid Aries Purwanto Arum Putri Rahayu Ava Lee Ava Lee Chen Mei Dodi Setiawan Riatmaja Erni Nurhayani Erniyati Caronge Ethan Tan Ethan Tan Eva Janssen Fathurrahman Fatimah Fahurian Gregorius Henu Basworo Ishak Bagea Izzul Ashlah James Njoroge Kaito Tanaka khoiriyah khoiriyah Lucas Wong Lucas Wong Makhrus Ali Marcus Tan Mariama Bah Mega Ilhamiwati Megan Koh Muh Irfan Mukhlishin Mulyaningsih Muntasir, Muntasir Pande Ayu Naya Kasih Rachel Chan Rahma Nurzianti Rania Al-Mohammed Sofia Lim Sofia Linm Sun Wei Taufik Setyaudin Triyugo Winarko