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All Journal Jurnal Riset Sains dan Kimia Terapan Ekonomipedia: Jurnal Ekonomi Manajemen dan Bisnis
Nurhasni
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Chemistry Economics, Econometrics & Finance

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The Effect Of Labor, Foreign Investment (Pma), And Domestic Investment (Pmdn) On Economic Growth In West Sumatra Province 2014-2023: PENGARUH TENAGA KERJA, INVESTASI PENANAMAN MODAL ASING (PMA), DAN PENANAMAN MODAL DALAM NEGERI (PMDN) TERHADAP PERTUMBUHAN EKONOMI DI PROVINSI SUMATERA BARAT TAHUN 2014-2023 Nurhasni; Iryani, Nelvia
Ekonomipedia: Jurnal Ekonomi Manajemen dan Bisnis Vol. 3 No. 2 (2025): November 2025
Publisher : Green Engineering Society

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Abstract

Abstract: Economic growth is a continuous process characterized by changes in a country's economic conditions for the better within a certain period of time. This study aims to analyze the influence of labor, FDI, and Domestic Direct Investment (DDI) on economic growth in West Sumatra Province during the 2014-2023 period. The data used are secondary data obtained from the Central Statistics Agency (BPS) and analyzed using a panel data regression model using the Random Effect Model (REM). The results show that labor and DDI have a positive and significant influence on economic growth, while DDI has a positive but insignificant effect. Abstrak: Pertumbuhan ekonomi adalah proses berkelanjutan yang ditandai dengan perubahan kondisi ekonomi suatu negara ke arah yang lebih baik dalam periode waktu tertentu. Penelitian ini bertujuan untuk menganalisis pengaruh tenaga kerja, PMA, dan PMDN terhadap pertumbuhan ekonomi di Provinsi Sumatera Barat selama periode 2014-2023. Data yang digunakan adalah data sekunder yang diperoleh dari Badan Pusat Statistik (BPS) dan dianalisis dengan model regresi data panel menggunakan Random Effect Model (REM). Hasil penelitian menunjukkan bahwa tenaga kerja dan PMDN memiliki pengaruh positif dan signifikan terhadap pertumbuhan ekonomi, sementara PMA berpengaruh positif tetapi tidak signifikan.
The Potential of Activated Carbon from Durian (Durio Zibenthius) Peel Waste As An Adsorbent Of Oil Spill Azizah, Yulyani Nur; Ningrum, Nur Azizah Dwi; Nurhasni
Jurnal Riset Sains dan Kimia Terapan Vol. 11 No. 2 (2025): Jurnal Riset Sains dan Kimia Terapan, Volume 11 Nomor 2, Desember 2025
Publisher : Program Studi Kimia Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JRSKT.112.01

Abstract

Oil exploration activities, such as ship loading and unloading, can lead to oil spills at sea, as can oil spills and tanker collisions. An affordable method for dealing with these spills is adsorption using activated carbon derived from bio-waste, such as durian peel. This study aims to evaluate the adsorption efficiency of durian peel-activated carbon on oil spills. The carbonization of durian peel was carried out at 300 °C and activated with KOH at 5, 20, 35, and 50% (w/v). Durian peel activated carbon with 35% KOH showed the best results for moisture content (5.442%), ash content (4.457%), bound carbon content (72.050%), and iodine adsorption (896.033 mg/g), according to SNI 06-3730-1995. FTIR measurements revealed that KOH activation did not induce significant changes in the wavenumbers of functional groups, but did increase the pore diameter, as confirmed by SEM. Its adsorption efficiency with a batch system on crude oil in simulated and real seawater reached 90.182% and 90.091%, respectively. These results suggest that activated carbon from durian peel has excellent potential as an oil adsorbent. This would increase its utility value and reduce the accumulation of biomass waste.
Co-Authors Nelvia Iryani Ningrum, Nur Azizah Dwi Yulyani Nur Azizah