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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Justek : Jurnal Sains Dan Teknologi Kappa Journal Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Unram Journal of Community Service (UJCS) Journal of Science and Science Education (JoSSEd) International Journal on Education Insight International Journal of Essential Competencies in Education Current Educational Review Journal of Material Science and Radiation
Aris Doyan
Mataram University
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Neuroscience Physics Public Health Social Sciences Other

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Optimizing the Development of P5 Worksheets for Teachers: Shaping Student Character at SMAN 1 Terara, East Lombok Regency Susilawati Susilawati; Aris Doyan; Ahmad Busyairi; Syahrial Ayub; Nina Nisrina
Unram Journal of Community Service Vol. 5 No. 2 (2024): June
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v5i2.632

Abstract

Character education through the implementation of P5 (Projek Penguatan Profil Pelajar Pancasila) is an important initiative in the Indonesian education system to form students with integrity and national insight. This research aims to optimize the development of the P5 Worksheet for teachers at SMAN 1 Terara, East Lombok Regency, with a focus on building student character. Evaluation is carried out based on the responses of training participants regarding various aspects of material delivery and the abilities of the presenters. The results showed that the majority of participants (50) strongly agreed that the material was delivered well, while 15 participants agreed. The delivery of P5 integration was considered interesting by 44 participants who strongly agreed and 21 participants who agreed. The material was considered easy to understand by 48 participants who strongly agreed and 17 participants who agreed. Apart from that, the presenters were considered capable of creating creativity in the participants, with 47 participants strongly agreeing and 18 participants agreeing. There were no participants who gave responses that disagreed or disagreed with all aspects assessed. Overall, the results of this research show that the development of the P5 Worksheet is effective in improving the quality of learning and shaping student character in accordance with the Pancasila Student Profile
Project-Based Learning and Biopreneurship for Developing Students’ Systems Thinking: A Literature Review Aprilia Ika Dewi Anjani; A. Wahab Jufri; I Putu Artayasa; Aris Doyan
Current Educational Review Vol. 1 No. 4 (2025): December
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/cer.v1i4.408

Abstract

Systems thinking is one of the most important abilities in the 21st century. Systems thinking helps students organize their thoughts in a meaningful way and make connections between seemingly unrelated problems to reveal their interrelatedness. Through systems thinking, learners are directed to first recognize a problem, understand the links between the factors causing the problem, and finally find the right solution and prevent new problems from arising. Systems thinking skills can be facilitated through learning with an integrated biopreneurship Project-Based Learning (PjBL) model. This study aims to identify how the positive trends of research on biopreneurship and systems thinking variables. This research method is descriptive and analytical. The data used in this study were obtained from documents indexed by Google Scholar from 2016 to 2025 using Publish or Perish and Dimension.ai. The data identified and analyzed were the type of publication, the source of publication, and the title of the research on the project-based learning (PjBL) model integrated with biopreneurship to improve students' systems thinking skills. The data analysis method uses text analysis assisted by VOS viewer software. The results of the study show that the research trend of the biopreneurship PjBL model to improve system thinking skills is very low from 2016-2025. In the period 2016 to 2019, no publications were recorded. Entering 2020 and 2021, the number of publications began to appear, with one publication per year each. However, in 2022, there was a drastic decline to zero, indicating that there were no publications that met the criteria. A positive trend was again seen in 2023 with one publication, and the peak occurred in 2024, where two publications were recorded, being the highest number in the observed period
Influence of Sintering Temperature on Phase Formation and Superconducting Properties of Bi2Sr2CaCu2O8+δ via Thermal Treatment Method Rahayu Emilia Mohamed Khaidir; Aliah Nursyahirah Kamarudin; Mohd Mustafa Awang Kechik; Chen Soo Kien; Lim Kean Pah; Muhammad Kashfi Shabdin; Muhammad Khalis Abdul Karim; Aris Doyan; Abdul Halim Shaari
Journal of Material Science and Radiation Vol. 1 No. 1 (2025): April
Publisher : Balai Publikasi Indonesia

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Abstract

High-temperature superconductor Bi2Sr2CaCu2O8+δ (Bi-2212) was successfully prepared using a thermal treatment method, starting with nitrate-based precursors. This study focused on how different sintering temperatures affect the material’s critical temperature, Tc. The process began with a pre-calcination step at 600 °C for 12 hours, followed by calcination at 820 °C for 24 hours. After that, the powder was pressed into pellets and sintered at 830 °C, 840 °C, 850 °C, and 860 °C, each for 24 hours. The Tc-onset values increased with sintering temperature, reaching 50 K at 830 °C, 65 K at 840 °C, and 78 K at 850 °C. SEM images showed closely packed, flake-like grains around 2 μm in size, while XRD analysis confirmed that the sample sintered at 850 °C had the highest Bi-2212 phases as a major phase. Thus, this work outlines the practical steps of the thermal treatment approach and shows how adjusting the sintering temperature can significantly influence the superconducting performance and phase formation of Bi-2212
Safety Evaluation of MRI Magnetic Field Leakage from Different Configurations Yap Siew Hong; Siti Aisyah Mohd Nordin; Mohd Mustafa Awang Kechik; Muhammad Khalis Abdul Karim; Zarina Ramli; Hussien Baqjiah; Soo Kien Chen; Kean Pah Lim; Muhammad Kashfi Shabdin; Aliah Nursyahirah Kamarudin; Aris Doyan; Arebat Ryad Alhadei Mohamed; Abdul Halim Shaari
Journal of Material Science and Radiation Vol. 1 No. 1 (2025): April
Publisher : Balai Publikasi Indonesia

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Abstract

Magnetic Resonance Imaging (MRI) systems generate intense static magnetic fields (SMFs), with fringe field propagation varying considerably between installations, even among scanners that operate at the same nominal field strength. This study investigates the safety implications of magnetic field leakage by quantifying and comparing SMFs distributions surrounding multiple MRI facilities. The assessment covers 1.5 T MRI scanners at Hospital Canselor Tuanku Muhriz (HCTM) and Hospital Pakar Kanak-Kanak UKM (HPKK), and 3 T scanners at the National Cancer Institute / Institut Kanser Negara (IKN), Pusat Pengimejan Diagnostik Nuklear (PPDN), and HCTM. Magnetic field intensities were recorded using a Magnetometer HP-01 provided by the Medical Radiation Surveillance Division (BKRP), Ministry of Health Malaysia, and visualised using MATLAB to model spatial field dispersion. Statistical tools, including Box and Whisker plots and the Shapiro-Wilk test, were employed to analyse magnetic field uniformity and containment. Specifically, 1.5 T scanners at HCTM and HPKK, and 3.0 T scanners at IKN, PPDN, and HCTM, each displayed distinct SMFs propagation profiles. These findings align with earlier studies conducted in Italy, confirming that magnetic field distributions near the magnet core can differ substantially based on scanner model and site-specific installation variables—even when B₀ remains constant. Notably, HCTM exhibited superior SMFs confinement, with lower standard deviation and a narrower distribution range, suggesting better shielding design. This enhances occupational safety in zones where radiographers frequently operate. The results reinforce the need for site-specific SMFs assessments and optimised shielding practices to maintain safe MRI environments for both staff and patients
Effect of SnO2 Addition on YBCO Superconducting Properties through Thermal Treatment Method Aliah Nursyahirah Kamarudin; Tan Kar Yeow; Mohd Mustafa Awang Kechik; Chen Soo Kien; Lim Kean Pah; Muhammad Kashfi Shabdin; Nurhidayah Mohd Hapipi; Muhammad Khalis Abdul Karim; Aris Doyan; Yap Siew Hong; Abdul Halim Shaari
Journal of Material Science and Radiation Vol. 1 No. 1 (2025): April
Publisher : Balai Publikasi Indonesia

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Abstract

In this study, YBa2Cu3O7-δ (YBCO) superconductors were synthesized using a thermal treatment method with the addition of 1.0 wt. % SnO₂. The synthesis of YBCO employed nitrate-based precursors and polyvinylpyrrolidone (PVP) as a capping agent to enhance homogeneity during the synthesis process. All samples were characterized using thermogravimetric analysis (TGA), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Four-point probe (4PP). TGA results of the pure YBCO sample confirmed the complete transformation of nitrate-based precursors into oxide forms prior to the formation of the YBCO phase. XRD pattern revealed that Y123 as a major phase and Y124 as a minor phase in all samples with orthorhombic crystal structure were preserved. However, the peak intensity of the Y123 was pronounced with the addition of the SnO2 sample, suggesting the enhancement phase formation due to the presence of SnO₂. The electrical resistivity measures revealed a sharp superconducting transition in all samples. However, the reduction in superconducting transition temperatures for the SnO2 addition were observed where the Tc-onset decreased from 91.70 K to 89.25 K for the YBCO and YBCO + 1.0 wt.% of SnO2, respectively. This also exhibited the broadening of transition width, ΔTc indicating the suppression of superconducting properties with SnO₂ inclusion. SEM analysis showed notable differences in microstructure. The pure YBCO sample exhibited a larger average grain size of 1.32 µm, while the YBCO + 1.0 wt. % SnO2 sample formed small and rounded grains with smoother edges, potentially impacting intergranular connectivity and charge transport. Therefore, the addition of 1.0 wt. % SnO2 to YBCO enhanced the formation of the Y123 phase but adversely affected the superconducting transition temperature and microstructural features. These findings highlight the dual role of SnO2 in promoting phase purity while modifying grain morphology and electrical performance, offering insight into the optimization of dopants in high-temperature superconductors
Trend Research of Polymer Gel Dosimetry: A Systematic Review Aris Doyan; Susilawati Susilawati; Syarful Annam; Teguh Ardianto; Muhammad Ikhsan; Nurul Rachma Ardianti; Hamidi Hamidi
Journal of Material Science and Radiation Vol. 1 No. 1 (2025): April
Publisher : Balai Publikasi Indonesia

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Abstract

Polymer gel dosimeters are fabricated from radiation sensitive chemicals which, upon irradiation, polymerize as a function of the absorbed radiation dose. These dosimeters, which uniquely record the radiation dose distribution in three-dimensions (3D), have specific advantages when compared to one-dimensional dosimeters, such as ion chambers, and two-dimensional dosimeters, such as film. This research aims to identify and analyze research trends of Polymer gel dosimeters. This research method is descriptive and analytical. The data used in this research was obtained from documents indexed by Google Scholar from 2016-2025 using Publish or Perish and Dimension.ai. Research procedures use PRISMA guidelines. The data identified and analyzed are the type of publication, publication source, and the title of research Polymer gel dosimeters that is widely cited. The data analysis method uses bibliometric analysis assisted by VOS viewer software. The results of the analysis show that research trend indexed by Google Scholar from 2016 to 2025 has experienced ups and down. There are many documents in the form of articles, chapters, proceeding, and edited books that discuss research about Polymer gel dosimeters. Key words that are often used in research about it are Magnetic Resonance Imaging, MRI, Monte carlo simulation, Characterization, Fricke gel, Polymerization, etc.
A Systematic Review: Trend Research of Polymer Thin Film Dosimetry Susilawati Susilawati; Aris Doyan; Syarful Annam; Teguh Ardianto; Muhammad Ikhsan; Nurul Rachma Ardianti
Journal of Material Science and Radiation Vol. 1 No. 1 (2025): April
Publisher : Balai Publikasi Indonesia

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Abstract

The application of polymer dose gels is limited by the sensitivity of dose readout methods and dose gel properties. It is a challenge to find suitable dosimeters for registration of doses delivered to the target by orthovoltage therapy units. The application of metal-particle-enriched polymer composites for dose registration in X-ray therapy might be an elegant solution, especially if recent dose-reading technologies exploring advantages of different physical phenomena are involved. This research aims to identify and analyze research trends of Polymer thin film dosimeters. This research method is descriptive and analytical. The data used in this research was obtained from documents indexed by Google Scholar from 2016-2025 using Publish or Perish and Dimension.ai. Research procedures use PRISMA guidelines. The data identified and analyzed are the type of publication, publication source, and the title of research Polymer thin film dosimeters that is widely cited. The data analysis method uses bibliometric analysis assisted by VOS viewer software. The results of the analysis show that research trend indexed by Google Scholar from 2016 to 2025 has experienced ups and down. There are many documents in the form of articles, chapters, proceeding, monograph, preprint, and edited books that discuss research into the polymer thin film dosimetry. Key words that are often used in research about it are Gamma radiation dosimetry, Polyvinyl alcohol, PVA, TeO2, ZnO, Polymerization, etc.
Comparative Characterisation of Structural and Superconducting Properties of Y-123 and Y-247 Synthesised by Thermal Treatment at 980 °C Siew Hong Yap; Tai Pao Er; Mohd Mustafa Awang Kechik; Muhammad Khalis Abdul Karim; Hussien Baqiah; Soo Kien Chen; Kean Pah Lim; Muhammad Kashfi Shabdin; Nurhidayah Mohd Hapipi; Aliah Nursyahirah Kamarudin; Arebat Ryad Alhadei Mohamed; Aris Doyan; Abdul Halim Shaari
Journal of Material Science and Radiation Vol. 1 No. 3 (2025): December
Publisher : Balai Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56566/jmsr.v1i3.425

Abstract

This study presents a comparative analysis of the structural and superconducting properties of YBa₂Cu₃O₇−δ (Y-123) and Y₂Ba₄Cu₇O₁₅−δ (Y-247) superconductors synthesised via a thermal treatment method at 980 °C. Metal nitrates were used as starting precursors, with polyvinylpyrrolidone (PVP) serving as a capping agent to enhance dispersion and control microstructure. X-ray diffraction (XRD) confirmed that Y-123 and Y-247 were the dominant phases in their respective samples, although minor peaks of BaCuO₂ were detected, indicating the presence of secondary phases. Scanning electron microscopy (SEM) revealed that Y-247 exhibited larger grain morphology and higher porosity than Y-123, suggesting that the chosen sintering temperature exceeds the thermal stability range for the Y-247 phase. Electrical resistivity measurements showed a single superconducting transition for both samples, with Y-123 exhibiting a sharper transition width (ΔTc = 8.1 K) compared to Y-247, indicating better grain connectivity and phase uniformity. Energy dispersive X-ray spectroscopy (EDX) supported the elemental presence of Y, Ba, Cu, and O in both samples, though variations in stoichiometry were attributed to secondary phases. The observed expansion in the c-axis lattice of Y-247, combined with its higher porosity, points to oxygen loss during sintering, which contributes to the reduced superconducting performance. Overall, the results confirm that both Y-123 and Y-247 can be successfully synthesised using a simple and environmentally friendly thermal treatment method. However, Y-123 exhibits better structural integrity and superconducting performance at the high sintering temperature of 980 °C, making it a more promising candidate for large-scale production of bulk high-temperature superconductors.
Co-Authors A. Wahab Jufri Abdul Halim Shaari Ahmad Aris Arifin Ahmad Busyairi, Ahmad Ahmad Harjono Aliah Nursyahirah Kamarudin Aprilia Ika Dewi Anjani Arebat Ryad Alhadei Mohamed Ayu Safitri Melita Bahtiar, Bahtiar Baiq Arum Kusumayati Barinta Nur Respasari Chen Soo Kien Chester Ian Sotto Pineda Chistine P. Abo Dedi Riyan Rizaldi Dian Faisal Hadi Dian Faisal Hadi Eris Nurhayati Firdaus Ali Hairunisa Sahidu Hamidi Hamidi Hardiyansyah Hardiyansyah Hijrotussulusi Hijrotussulusi Hussien Baqiah Hussien Baqjiah I Wayan Gunada Ibrahim Ibrahim Izlayani Putri Jannatin ‘Ardhuha Johana Aulina Rahmatin Kean Pah Lim Kehkashan Alam Lalu Mulyadi Lim Kean Pah Mahrus Mahrus Mohd Mustafa Awang Kechik Mohd Mustafa Awang Kechik Mohd Mustafa Awang Kechik Muh Makhrus Muh. Makhrus Muh. Makhrus Muhamad Hendri Diarta Muhammad Ikhsan Muhammad Ikhsan Muhammad Kashfi Shabdin Muhammad Kashfi Shabdin Muhammad Khalis Abdul Karim Muhammad Matori Rahman Muhammad Roil Bilad Muhammad Taufik Muhammad Zuhdi Muhammad Zuhdi Muliyadi, Lalu Muntari Muntari Ni Luh Putu Pebri Artayani . Ni Nyoman Sri Putu Verawati Nina Nisrina Nurhidayah Mohd Hapipi Nurul Rachma Ardianti Nurul Rachma Ardianti Putu Wira Sanggara Rahayu Emilia Mohamed Khaidir Rahmat Rezki Aolia Akhzami Salva Asghar Saprizal Hadisaputra Siew Hong Yap Siti Aisyah Mohd Nordin Soo Kien Chen Susilawati - Suslawati Susilawati Sutrio Syahrial Ayub Syarful Annam Syarful Annam Tai Pao Er Tan Kar Yeow Teguh Ardianto Thufail Mujaddid Al-Qoyyim Thufail Mujaddid Al-Qoyyim Yap Siew Hong Yayuk Andayani Yusuf Yusuf Zarina Ramli Ziadatul Fatimah Ziadatul Fatimah