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All Journal Edu Cendikia: Jurnal Ilmiah Kependidikan Information Technology Education Journal Journal of Embedded Systems, Security and Intelligent Systems
Jeffrey Payung Langi
Politeknik Negeri Ambon
Humanities Computer Science & IT Education Languange, Linguistic, Communication & Media Social Sciences Other

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Penerapan Model Problem Based Learning Terintegrasi STEM terhadap Keterampilan Berpikir Kritis pada Materi Hukum Newton: Implementation of STEM Integrated Problem Based Learning Model on Critical Thinking Skills in Newton's Law Material Jeffrey Payung Langi
Edu Cendikia: Jurnal Ilmiah Kependidikan Vol. 4 No. 03 (2024): Research Articles, December 2024
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/educendikia.v4i03.5388

Abstract

Critical thinking skills are one of the primary abilities students must master in the 21st century. One of the materials that requires this skill is Newton's Law, which is often a challenge in learning physics. Newton's Law is an essential topic in physics that students usually consider difficult. The research focused on the effect of implementing the Problem-Based Learning (PBL) model integrated with STEM on students' critical thinking skills in Newton's Law material. The STEM-based PBL approach can be proven to hone students' analytical and critical thinking skills. However, although the benefits of PBL and STEM have been widely discussed, studies that integrate both in Newton's Law material are still minimal. The approach is quasi-experimental with a pretest-posttest control group technique involving two classes: experimental (PBL integrated with STEM) and control (conventional approach). Data was generated through pretest-posttest to assess students' critical thinking skills. This approach provides opportunities for students to apply concepts in real life through exploration and problem-solving. The study results indicate a significant difference between the experimental and control classes with a p-value of 0.036 (p <0.05) and a d-value of 0.53, so it is included in the moderate influence category. Thus, the integrated PBL approach with STEM effectively improves students' critical thinking skills in Newton's Law material.
Implementation of Augmented Reality Integrated with Problem-Based Learning in Structural Physics to Enhance Students’ Risk Analysis Skills Jeffrey Payung Langi
Information Technology Education Journal Vol. 4, No. 3, August (2025)
Publisher : Jurusan Teknik Informatika dan Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/intec.v4i3.9466

Abstract

This study aims to examine the effectiveness of implementing Problem-Based Learning (PBL) integrated with Augmented Reality (AR) in improving students’ risk analysis skills in the Structural Physics course at the State Polytechnic of Ambon. The research background is grounded in the importance of active learning strategies and interactive visual tools in bridging abstract concepts such as stress, load, and potential structural failure. A quasi-experimental approach with a one-group pretest–posttest design was employed. The research subjects consisted of 30 fourth-semester students from the Civil Engineering study program. Data were collected through pretests and posttests, PBL activity observations, questionnaires on perceptions of AR, and learning documentation. The results indicate a significant improvement in students’ risk analysis skills after participating in PBL–AR-based learning. The t-test results showed a p-value < 0.05, while the N-Gain scores fell into the medium category across all aspects, including risk identification, stress evaluation, and mitigation strategies. Observations revealed active student engagement in all stages of PBL, and the questionnaire indicated positive perceptions toward AR, particularly regarding its usefulness and ease of use. These findings suggest that the integration of PBL and AR not only enhances cognitive learning outcomes but also strengthens students’ affective and social dimensions. This study recommends the broader application of the PBL–AR model in vocational engineering education as a strategy to produce adaptive, competent, and technologically literate graduates. The model is considered capable of addressing the challenges of modern engineering education, which demands strong conceptual understanding and high-level problem-solving skills
Performance Evaluation of Fiber Optic versus Copper Cable Networks: A Comparative Study Muhammad Bitrayoga; Evan Haviana; Jeffrey Payung Langi; Sulastri Kakaly; Apriani Riyanti
Journal of Embedded Systems, Security and Intelligent Systems Vol 6, No 4 (2025): Desember 2025
Publisher : Program Studi Teknik Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jessi.v6i4.11443

Abstract

This study presents a comparative performance evaluation of Fiber Ethernet and copper Ethernet (Cat6) using a controlled testbed to quantify differences in throughput and Quality of Service (QoS). Identical endpoints are connected through a managed switch, and the physical medium is alternated between a fiber link and a Cat6 link. Traffic is generated under TCP and UDP at three utilization levels (10%, 50%, and 90%) and three distance conditions (10 m, 50 m, and 90–100 m for Cat6). The evaluation uses application-level and interface-level measurements, including TCP/UDP throughput, round-trip latency, jitter, packet loss, and reliability counters such as CRC/FCS errors and TCP retransmissions. Results show that both media can achieve near line-rate throughput at short distance and low load, but fiber exhibits consistently lower latency and jitter and near-zero loss across conditions. As utilization increases, Cat6 displays larger variability in delay and a higher tendency toward UDP loss, indicating reduced timing stability under stress. At longer copper runs (90–100 m), the gap widens: Cat6 shows higher jitter and loss and increased error-related counters, while fiber remains stable. These findings suggest that the main advantage of fiber is not only peak capacity but also QoS predictability and link integrity, which are critical for real-time and high-utilization services. The study provides practical guidance for selecting media in campus and building networks where distance, load, and service requirements must be balanced. Future work will include electromagnetic-noise trials, different switch/NIC models, and statistical tests to validate effect sizes across repetitions in diverse building environments
Co-Authors Evan Haviana Muhammad Bitrayoga Nur Ardiana Ode Riyanti, Apriani Rudi Serang Sulastri Kakaly