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All Journal Lantanida Journal JURNAL GALUNG TROPIKA Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal PTK dan Pendidikan Journal of Information Systems for Public Health Kumpulan Artikel Pendidikan Anak Bangsa : Journal Pendidikan, Sosial dan Humaniora Jurnal Pengabdian Masyarakat dan Riset Pendidikan JURNAL MULTIDISIPLIN ILMU AKADEMIK Prosiding Seminar Nasional Fakultas Tarbiyah dan Ilmu Keguruan UIAD PESHUM Journal of Studies in Academic, Humanities, Research, and Innovation
Nurul Mutmainnah
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Analysis of the Impact of Macroeconomic Inflation on the Profitability Performance of PT Vale Indonesia Tbk: An Empirical Regression Approach for the 2018-2023 Period Fakhirah Husain; Nurul Mutmainnah; Andre Rachmansyah Putra Tira; Fera Anastasya; Putri Nur Ramadhani
Journal of Studies in Academic, Humanities, Research, and Innovation Vol. 2 No. 2 (2025): December 2025
Publisher : Ponpes As-Salafiyyah Asy-Syafi'iyyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71305/sahri.v2i2.907

Abstract

This study aims to examine and analyze the influence of macroeconomic inflation on the profitability performance of PT Vale Indonesia Tbk during the 2018–2023 period. Profitability is a key indicator of a company’s financial health, and understanding how it responds to macroeconomic fluctuations is essential, particularly in the mining industry, which is highly sensitive to global and domestic economic conditions. This research employs a quantitative approach using simple linear regression analysis, supported by secondary data consisting of company financial statements and annual inflation data retrieved from the Central Statistics Agency (BPS) and Bank Indonesia. Several classical assumption tests were conducted, including normality, autocorrelation, and multicollinearity tests. The results show that the data are normally distributed and free from multicollinearity; however, the model exhibits positive autocorrelation, indicating that the residuals are not fully independent across time. The regression analysis reveals that inflation has a negative influence on the company’s profitability, measured by Return on Assets (ROA). Nevertheless, this relationship is not statistically significant, as reflected by a significance value of 0.677 (> 0.05). Furthermore, the coefficient of determination (R²) of 0.066 and an adjusted R² of -0.245 indicate that inflation explains only 6.6% of the variation in ROA, while the remaining 93.4% is influenced by other internal and external variables not included in this model. Overall, the findings suggest that inflation does not have a significant impact on the profitability of PT Vale Indonesia Tbk during the study period, implying that the company’s financial performance may be more strongly affected by operational efficiency, commodity prices, production volume, and other macroeconomic indicators beyond inflation.
DEVELOPMENT OF A SCIENCE E-MODULE INTEGRATING THE LOCAL POTENTIAL OF BANTIMURUNG NATIONAL PARK Nurul Mutmainnah; Lestari, Tri Kurniah; Abdulah, Abdulah; Bariyyah, Sitti Khairul
Jurnal PTK dan Pendidikan Vol. 11 No. 02 (2025): Juli - Desember
Publisher : Fakultas Tarbiyah dan Keguruan Universitas Islam Negeri Antasari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18592/ptk.v11i02.20053

Abstract

Abstract Science education in elementary schools requires teaching materials that not only contain concepts but also connect the material to the real environment of the students. This study aims to develop a science e-module based on the local potential of Bantimurung National Park's natural attractions as teaching materials to support science learning in line with the Merdeka Curriculum. The study used the Research and Development (R&D) method with a 4-D development model, which includes the define, design, develop, and disseminate stages, with limitations on limited trials. The research subjects involved subject matter experts, media experts, classroom teachers, and 15 fifth-grade elementary school students. Data were collected through interviews and questionnaires, then analyzed descriptively by converting the scores into qualitative categories. The results showed that the developed science e-module received a very feasible rating from subject matter experts and media experts, and was considered practical and easy to understand by teachers and students. The integration of local potential in conservation areas makes science learning more contextual and relevant to the learning experiences of students. Therefore, the science e-module based on the local potential of Bantimurung National Park is suitable for use as teaching material to support science learning in elementary schools. Keywords: Science e-module, local potential, Merdeka Curriculum, science learning, elementary school
Co-Authors Abdulah, Abdulah Adrias Adrias Agus Ismail Aissy Putri Zulkarnaini Andre Rachmansyah Putra Tira Bahri Bahri Bariyyah, Sitti Khairul Fachry Abda El Rahman Faidar Fakhirah Husain Fauzia Nur Fauziah Fera Anastasya Fitri Indah Yani HARMILAWATI Hutamy, Ericha Tiara Junet Johana Tary Lestari, Tri Kurniah Muh. Yusri Karim Muhammad Janwar Muhammad Qaddafi Muhammad Rasyid Ridha Putri Nur Ramadhani Rezky Awalia Amanda Rifqatussa Diyah Sahabuddin Sitti Chadijah Ummu Kaltsum SC Yusdalifa Ekayanti Yunus