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All Journal Journal of Selvicoltura Asean International Journal of Educatio Elementaria and Psychologia Journal of Loomingulisus ja Innovatsioon Journal of Biomedical and Techno Nanomaterials
Teo, Ryan
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Environmental Science Law, Crime, Criminology & Criminal Justice Other

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Deforestation and Forest Degradation: Drivers and Impacts on Biodiversity in Southeast Asia Koh, Megan; Teo, Ryan; Tan, Ethan
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 Effectiveness of the Use of Learning Videos on the Understanding of Mathematics Concepts in Elementary Schools Walid, Abul; Tan, Ethan; Teo, Ryan
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 Tan, Ethan; Linm, Sofia; Teo, Ryan
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.
Development of a Nano Particle Vaccine to Prevent Zika Virus Infection Tan, Ethan; Wong, Lucas; Teo, Ryan; 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.
THE IMPACT OF FOREST FIRES ON TIMBER PRODUCTION AND FOREST ECOSYSTEMS Koh, Megan; Lee, Ava; Teo, Ryan
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 Teo, Ryan; Wong, Lucas; Koh, Megan
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.v2i5.2740

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.
Co-Authors Abul Walid Koh, Megan Lee, Ava Linm, Sofia Muntasir, Muntasir Tan, Ethan Wong, Lucas