Article Per Year (5 Year)
p-Index From 2021 - 2026
2.837
P-Index
This Author published in this journals
All Journal Berkala Fisika Indonesia : Jurnal Ilmiah Fisika, Pembelajaran dan Aplikasinya Jurnal Riset dan Kajian Pendidikan Fisika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Natural B Jurnal Inovasi dan Pembelajaran Fisika Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Jurnal Pendidikan Fisika dan Teknologi JTM - Jurnal Teknik Mesin Indonesian Physical Review Kappa Journal Indonesian Review of Physics (IRiP) IJECA (International Journal of Education and Curriculum Application) Jurnal Penelitian Pendidikan Fisika Mattawang: Jurnal Pengabdian Masyarakat Schrodinger : Jurnal Ilmiah Mahasiswa Pendidikan Fisika EduMatika: Jurnal MIPA Journal of Novel Engineering Science and Technology
Donuata, Pujianti Bejahida
IKIP Muhammadiyah Maumere
Humanities Astronomy Automotive Engineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

Published : 24 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 24 Documents
Search

 1   2   3 
THE POTENTIAL OF FALOAK BARK (STERCULIA QUADRIFIDA R.BR.) as an ACTIVATED CARBON PRODUCT THROUGH PHYSICAL-CHEMICAL ACTIVATION METHOD Bobu, Fetronela Rambu; Tea , Marselina Theresia Djue; Donuata, Pujianti Bejahida; Batu, Matius Stefanus
Indonesian Physical Review Vol. 8 No. 2 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i2.448

Abstract

Faloak is a plant species native to the East Nusa Tenggara region and Australia, widely used by the local community in NTT as an herbal medicine, particularly in treating liver disease, digestive disorders, and fatigue. However, this study presents a new application by analyzing its physical-chemical properties and evaluating its effectiveness in the synthesis of activated carbon. This study aims to explore and analyze the potential of Faloak bark as a source of activated carbon, which has not been examined in previous research. This research uses a quantitative approach by conducting controlled laboratory experiments to measure and analyze the variation in activator concentration on the water and ash content of activated carbon. The research applied the physical-chemical activation method. The physical activation process involved heating at temperatures ranging from 250°C to 450°C, while chemical activation was conducted using ZnCl₂ and NaOH at concentrations of 1 N, 2 N, and 3 N. This method was selected to determine the optimal conditions for converting Faloak bark into activated carbon, focusing on temperature and chemical activators. The findings indicate that the optimum temperature for activated carbon formation is 300°C. Additionally, tests using chemical activators showed that Faloak bark performs best with a 2 N NaOH solution, as evidenced by ash and water contents of 0.03% and 0.65%, respectively. Functional group analysis through FTIR testing identified the presence of  (hydroxyl), aromatic C=C, and carbonyl C=O groups, further supporting the potential of Faloak bark as a viable material for activated carbon production. The findings suggest that Faloak bark has significant potential to be developed into an activated carbon product.
Pengembangan Komik Fisika Materi Kemagnetan Sebagai Media Pembelajaran Siswa SMPN 1 Maumere Feka, Maria Goroliva; Donuata, Pujianti Bejahida; Koten, Florentinus P. N.
Kappa Journal Vol 7 No 3 (2023): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i3.21226

Abstract

Comics are light reading and are preferred by teenagers and children, because comics are full of imagination and pictures. This research tries to inform theories in the form of writing and developed in a comic media. The purpose of this research is to make physics comics of magnetic material using comic media, and make students understand about magnetic materials. The research method carried out is R&D, the teacher as a researcher who refers to the model with the 4-D definition, Stages, design, development, dissemination. The sample was ninth grade junior high school students, while the research instruments were physics comics and questionnaire distribution. The success of this physics comic is seen from the answers of students filling out a questionnaire of student interest in learning with a success indicator of 80.3% which is included in the very good category. After conducting this comic trial, it succeeded in making students understand about magnetic material and students were interested in learning by using comic media.
Pengembangan Komik Fisika Pada Materi Hukum Newton Meda, Helmiana Dua; Donuata, Pujianti Bejahida; Jufriansah, Adi
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.21256

Abstract

This study aims to find out the feasibility of developing physics comic media on Newton's Law material so that it can be applied to the learning process. The research was conducted at St. Gabriel Maumere Catholic High School Class X MIA which totaled 22 students. According to the findings of the observations, it appears that learning in class still uses teaching materials in the form of books and various facilities such as projectors, LCDs, so most students feel less attractive in the interest in learning. This is due to the fact that educators are less developing learning media, this is a limitation of knowledge. In order to generate a certain product and evaluate its efficacy, a research approach known as research and development (R & D) or research and knowledge (if translated into Indonesian) is employed. Based on the findings of the data analysis, the product was validated by two experts, namely media and material specialists, and received scores of 80% and 91.1% in the 'Very Good' category. Furthermore, the product was tested to 22 students by obtaining 87% results included under the "Very Good" heading. Thus, it can be said that creating Fiska comics based on information about Newton's Law is thought to be doable and applicable in the upcoming educational process.
The Analysis of Religious Character Instrument using Classical and Modern Theories Sabaryati, Johri; Utami, Linda Sekar; Ala, Siti; Donuata, Pujianti Bejahida; Suryani, Yulinda Erma
IJECA (International Journal of Education and Curriculum Application) Vol 8, No 3 (2025): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/ijeca.v8i3.35338

Abstract

Measuring religious character is essential for understanding how individuals internalize religious values. However, previous studies have mainly focused on conceptual development or instrument construction without systematically comparing psychometric characteristics before and after scaling or integrating Classical Test Theory (CTT) and Item Response Theory (IRT) within a single analytical framework. This study addresses these gaps by examining the characteristics of a multidimensional religious character instrument before and after scaling to ensure score stability and measurement precision. The instrument was a self-report questionnaire using 4–5 point Likert-type items representing five dimensions: intellectuality, ideology, public practice, private practice, and religious experience. A descriptive quantitative design was employed. CTT was used to evaluate item statistics, reliability, and score distribution, while IRT specifically the graded response model (GRM) assessed item functioning across different levels of the latent trait. The summated rating method was applied to transform ordinal responses into standardized scores. Data were collected from 375 students at Widya Dharma University, Klaten, Indonesia, and analyzed using R. The scaling procedure generated positivized z-scores and produced a more compressed score distribution, reflected in decreased mean, standard deviation, mode, and median. Changes in reliability coefficients and the Standard Error of Measurement (SEM) across dimensions indicated that scaling affected measurement precision. GRM analysis confirmed that the instrument effectively discriminated among individuals with low, moderate, and high levels of religious character. Overall, the findings highlight the value of applying scaling procedures and integrating CTT and IRT to improve the accuracy, interpretability, and psychometric robustness of religious character assessments.
Co-Authors Adi Jufriansah Agustinus Angelaus Ete AGUSTINUS ANGELAUS ETE Agustinus Angelaus Ete Ala, Siti Alfarizi Alfarizi Ana Sofia Aprianti, Anyela Ayuba, John Azmi Khusnani Dian Ahdiany Dian Grace Ludji Erwin Prasetyo Ete, Agustinus A Fani K.Y. Serangmo Feka, Maria Goroliva Fetronela Rambu Bobu Fika Widya Pratama Florentinus Primarius Naraama Koten Gauru, Imanuel hikmatiar, hamzarudin Johri Sabaryati, Johri Kataria Inus Koten, Florentinus P. N. Linda Sekar Utami Masita, Siti Ita Matius Stefanus Batu Meda, Helmiana Dua Muhaimin Rifa'i Muhamad Epi Rusdin Nursina Sya'bania PRASETYO, ERWIN Remigius Robinson Risald Robinson, Remigius Rusdin, Muhamad Epi Saharul, Saharul Sahlan Sahlan Sahlan Sahlan Sitti Sarifah Bahruddin Syarif, Ratih Ulfah R Tea , Marselina Theresia Djue Unggul P. Juswono Yomianus Bura Yudhiakto Pramudya Yulinda Erma Suryani