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All Journal KOVALEN: Jurnal Riset Kimia al-Afkar, Journal For Islamic Studies Educational Journal of Islamic Management (EJIM)
Muhammad Nur Alim
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Social Sciences Other

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Deflation in Islamic Economics: A Solution from the Perspective of Modern Islamic Civilization Muhammad Nur Alim; Khusnuddin
al-Afkar, Journal For Islamic Studies Vol. 8 No. 4 (2025)
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/afkarjournal.v8i4.1884

Abstract

The phenomenon of deflation, which is characterized by a general decline in prices, is often considered a major challenge in modern economics because it can trigger economic crises, such as economic contraction and unemployment. In Islamic economics, deflation is not only viewed from a technical angle, but also from a moral and ethical perspective based on the principles of justice, balance, and public good. Islam prohibits practices such as usury and hoarding that exacerbate the effects of deflation, while encouraging wealth redistribution through instruments such as zakat, infaq and waqf.This study aims to examine the solution to deflation based on an Islamic economic perspective and its relevance in facing modern economic challenges. Using a literature-based qualitative-descriptive approach, this research explores the concepts of classical thinkers such as Al-Maqrizi and their application in the era of globalization. The results show that the application of Islamic financial instruments, the strengthening of the real sector, and the elimination of usury can create sustainable economic stability. This solution not only focuses on short-term economic recovery, but also promotes equitable and inclusive growth.
Effect of Column Diameter on the Performance of an Ion Exchange System in Reducing Water Hardness Widya Yeni Rawati; Sunardi; Sri Widarti; Sumarja; Muhammad Nur Alim
KOVALEN: Jurnal Riset Kimia Vol. 11 No. 2 (2025): December Edition
Publisher : Chemistry Department, Mathematics and Natural Science Faculty, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/kovalen.2025.v11.i2.17907

Abstract

Ion exchange is an effective method for removing hardness ions such as Ca2+ and Mg2+ from water, and its performance is strongly influenced by column design parameters. This study aims to evaluate the effect of column diameter on the efficiency of a sequentially operated cation–anion ion exchange system at a constant flow rate of 10 L/h. Six column diameters (20, 25, 30, 35, 40, and 50 mm) were tested using synthetic solutions. The results showed that the 30 mm column achieved the highest ion-exchange performance, with a removal efficiency of 92.47%. This column also produced the most well-defined breakthrough curve, yielding an exchange capacity of 8.76 mg/g, equivalent to 0.437 meq/g for Ca2+ and 0.720 meq/g for Mg2+. These findings indicate that the 30 mm diameter provides an optimal balance between contact time and flow distribution, resulting in superior ion exchange efficiency.
Rendahnya Kepercayaan Peserta Didik Terhadap Guru Bimbingan Dan Konseling: Analisis Faktor Penyebab Dan Perspektif Bimbingan dan Konseling Islam dalam Membangun Kepercayaan Peserta Didik terhadap Guru Bimbingan dan Konseling Khoirun Nisa; Akhir Pardamean Harahap, M.Pd.I; Sheilla Salshabilla; Muhammad Yaqub Hudawi; Muhammad Nur Alim; Agi Ashari
Educational Journal of Islamic Management Vol. 6 No. 1 (2026): Research Article Mei 2026
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ejim.v6i1.9207

Abstract

Kepercayaan peserta didik terhadap guru Bimbingan dan Konseling (BK) merupakan faktor penting yang menentukan keberhasilan layanan konseling di sekolah. Namun, dalam praktiknya masih ditemukan peserta didik yang enggan memanfaatkan layanan BK karena rendahnya tingkat kepercayaan terhadap guru BK. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang menyebabkan rendahnya kepercayaan peserta didik terhadap guru BK, dampaknya terhadap proses konseling, serta perspektif Bimbingan dan Konseling Islam dalam membangun kepercayaan tersebut. Penelitian ini menggunakan metode studi kepustakaan (library research) dengan mengkaji berbagai buku, artikel ilmiah, dan hasil penelitian yang relevan. Teknik analisis data dilakukan melalui pengumpulan, pengkajian, dan interpretasi berbagai sumber literatur yang berkaitan dengan kepercayaan peserta didik dalam layanan konseling. Hasil kajian menunjukkan bahwa rendahnya kepercayaan peserta didik terhadap guru BK dipengaruhi oleh stigma negatif terhadap guru BK, kurang terjaganya kerahasiaan konseling, pendekatan yang cenderung menghakimi, serta komunikasi yang kurang empatik. Kondisi tersebut berdampak pada rendahnya keterbukaan diri peserta didik, keengganan untuk mengikuti layanan konseling, dan kurang optimalnya penyelesaian masalah psikologis yang mereka hadapi. Dalam perspektif Bimbingan dan Konseling Islam, kepercayaan dapat dibangun melalui penerapan asas kerahasiaan (al-sirriyyah), keteladanan (uswah hasanah), komunikasi yang penuh hikmah (qaulan layyinan), empati, dan profesionalisme guru BK. Dengan demikian, integrasi nilai-nilai Islam dan kompetensi profesional guru BK menjadi langkah penting dalam meningkatkan kepercayaan peserta didik serta mengoptimalkan efektivitas layanan konseling di sekolah.
Co-Authors Agi Ashari Akhir Pardamean Harahap, M.Pd.I Khoirun Nisa Khusnuddin Muhammad Yaqub Hudawi Sheilla Salshabilla Sri Widarti Sumarja Sunardi Widya Yeni Rawati