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All Journal Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan World Chemical Engineering Journal JEP (Jurnal Ekonomi Pembangunan) Jurnal Pendidikan Ekonomi Jurnal Ilmiah Universitas Batanghari Jambi Turbo : Jurnal Program Studi Teknik Mesin Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology JMM UNRAM (Jurnal Magister Manajemen Universitas Mataram) Jurnal Pendidikan Guru Gravity Edu : Jurnal Pembelajaran dan Pengajaran Fisika ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar Termometer: Jurnal Ilmiah Ilmu Kesehatan Dan Kedokteran JEP (Jurnal Ekonomi Pembangunan) Jurnal Kebidanan : Jurnal Ilmu Kesehatan Budi Mulia Riset Ilmu Manajemen Bisnis dan Akuntansi Prosiding Seminar Nasional Pendidikan dan Agama Vitalitas Medis : Jurnal Kesehatan Dan Kedokteran Prosiding Seminar Nasional Unimus Jurnal Akuntansi, Keuangan dan Audit (JAKA)
Rosmiati Rosmiati
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Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Dampak Kebijakan Dividen, Tingkat Bunga, dan Inflasi terhadap Harga Saham Perusahaan Sektor Keuangan di Yogyakarta Rosmiati Rosmiati; Isnaini Khoirunnisa; Henike Sobolim; Bangun Putra Prasetya
Jurnal Rimba Riset Ilmu manajemen Bisnis dan Akuntansi Vol. 3 No. 3 (2025): Agustus : Riset Ilmu Manajemen Bisnis dan Akuntansi
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/rimba.v3i3.2054

Abstract

This study aims to analyze the impact of dividend policy, interest rates, and inflation on the stock prices of financial sector companies in Yogyakarta. The data used are secondary data obtained from company financial reports and macroeconomic indicators over a specific period. The analytical method employed is multiple linear regression to determine the extent to which the independent variables affect stock prices as the dependent variable. The results indicate that dividend policy has a significant positive effect on stock prices, while interest rates and inflation have a negative impact. These findings provide important implications for investors and financial managers in formulating investment strategies and dividend policies, as well as in considering macroeconomic conditions in financial decision-making within the financial sector.
Model Manajemen Rehabilitasi Infrastruktur Gedung Madrasah Tsanawiyah untuk Peningkatan Mutu Layanan Pendidikan di Kabupaten Konawe Kepulauan Eliyanti Agus Mokodompit; La Ode Muhammad Ichwan Sjcahrawy; Rosmiati Rosmiati
ARZUSIN Vol 5 No 6 (2025): DESEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/arzusin.v5i6.8155

Abstract

The infrastructure conditions of Madrasah Tsanawiyah (MTs) buildings in Konawe Kepulauan Regency are still marked by various problems, including damaged structures, limited classroom space, substandard sanitation facilities, and inadequate learning support amenities, all of which negatively impact the quality of educational services and constrain comfortable and effective learning activities. This study aimed to formulate a management model for MTs building rehabilitation that is effective, efficient, and oriented toward improving the quality of educational services. Adopting a qualitative approach with a case study design in several MTs in Konawe Kepulauan Regency, data were collected through in-depth interviews, field observations, and document analysis. The findings show that an ideal rehabilitation management system is supported by three main components: (1) planning based on the actual needs of the madrasah; (2) transparent and accountable rehabilitation governance; and (3) sustainable post-rehabilitation utilization and maintenance of buildings. The implementation of this model has been shown to improve the condition of facilities, create a safer and more conducive learning environment, and enhance the quality of educational services at the madrasah level. These findings provide practical contributions for local policymakers and administrators of Islamic educational institutions in designing more targeted and sustainable infrastructure rehabilitation programs.
Utilization of Rice Husks as Green Amorphous Silica with Variations in the Addition of Sulfuric Acid and Citric Acid in the Acidification Process Marta Pramudita; Rosmiati Rosmiati; Mahulia Hasriyati; Widya Ernayatie; Alia Badra Pitaloka
World Chemical Engineering Journal VOLUME 10 NO. 1 JUNE 2026
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i1.40736

Abstract

The acidification step in silica extraction from rice husks typically uses strong mineral acids, such as sulfuric acid, which pose safety risks and environmental concerns. Citric acid, a weak organic acid, is a safer and more environmentally friendly alternative for this process. This study aimed to produce green amorphous silica (GAS) from rice husk waste using the sol-gel method and to compare the effects of sulfuric acid and citric acid during the acidifying step. Rice husks were calcined at 700°C, acid-pretreated to pH 1, extracted with 1 M NaOH, and neutralized with either 1 M H₂SO₄ or 1 M C₆H₈O₇. The resulting silica powders were characterized using XRF, XRD, SEM-EDX, and FTIR. The SiO₂ content reached 95.22 % by mass with sulfuric acid and 93.59 % with citric acid. XRD revealed that sulfuric acid produced a poorly crystalline phase, whereas citric acid maintained a fully amorphous structure. SEM images showed uniform nanoparticles (~50–80 nm) for the sulfuric acid route, whereas citric acid produced more agglomerated clusters. FTIR spectra confirmed the presence of siloxane bonds in both samples; however, citric acid-derived silica exhibited residual carboxylate bands and less extensive condensation. Overall, sulfuric acid produced purer, more uniform silica suitable for high-performance applications. In contrast, citric acid proved a viable, greener alternative for preserving the amorphous state, suggesting that further process optimization could enhance its competitiveness in sustainable silica synthesis.
Co-Authors Ahmad Yani Ainun Ainun Alia Badra Pitaloka Ambo Wonua Nusantara Bangun Putra Prasetya Eddy Haryanto Ekawarna Ekawarna Eliyanti Agus Mokodompit Emma Suryati Fadlun Fadlun Frin Eben Gani Haryana Gimin Gimin Hasan Aedy Henike Sobolim hermanto hermanto Hutabarat, Zuhri Saputra Indra Buana Isnaini Khoirunnisa Iwan Putra La Ode Muhammad Ichwan Sjcahrawy Lis Suswati Mahulia Hasriyati Mardiati Mardiati Marta Pramudita Mauliza Mauliza Mayasari Mayasari Noviatri indah Puspita sari Nurmala Sari Refnida, Refnida Sindi Mertisia Siti Syuhada Thatok Asmony Widya Ernayatie Yus'iran Yus'iran