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All Journal Jurnal EECCIS Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Jurnal Ekonomi dan Kebijakan Publik Indonesia Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Jurnal Bastra (Bahasa dan Sastra) Amal Ilmiah: Jurnal Pengabdian Kepada Masyarakat GEMBIRA (Pengabdian Kepada Masyarakat) PESHUM Nusantara: Journal of Cultural Research (NJCR) ShariaBiz International Journal of Economics and Business
Ahmad Ramadhan
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences

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POTENSI AKSESIBILITAS FASILITAS PELAYANAN PENDIDIKAN DI DESA KABUPATEN OGAN KOMERING ULU SELATAN PROVINSI SUMATERA SELATAN Ahmad Ramadhan; Elmafatriza Elisha E
Jurnal Ekonomi dan Kebijakan Publik Indonesia Vol 7, No 1 (2020): Mei 2020
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ekapi.v7i1.17352

Abstract

AbstractGuaranteeing education for citizens is one of the mandates in the 1945 Constitution. One of the government's efforts to carry out the mandate is through development. For this reason, the government seeks to improve education facilities and access to remote villages by prioritizing education through increasing the budget for education. This effort aims to ensure that every citizen gets a proper education, especially in rural areas. However, development in Indonesia has not been fully equitable. In 2018, basic services and infrastructure will be the lowest dimensions in the preparation of the Rural Development Index (IPD) in South Sumatra. Meanwhile South Ogan Komering Ulu regency was the district with the lowest IPD in South Sumatra, which was 53.78 below the average IPD of South Sumatra. Development disparity occurs between rural and urban areas. By increasing connectivity between regions, it is expected to increase competitiveness and reduce disparity between regions through infrastructure development. Increasing connectivity and accessibility will open isolation of an area, and increase the chances of an area getting public services.This study aims to look at accessibility between villages and their potential in accessing educational facilities. The research method in this study uses 2018 PODES data sources and connectivity data between villages. The analysis uses a social networks analysis to see the potential and accessibility of villages in educational service facilities. The results of this study are expected to be input for the local government in future development planning.
PENGARUH METODE PERENDAMAN DAN REFLUKS DALAM MENINGKATKAN KADAR SILIKA ABU VULKANIK GUNUNG SINABUNG Rantika Dewi Ginting; Wike S Simamora; Ahmad Ramadhan; Lisnawaty Simatupang
Jurnal Sains dan Terapan Kimia Vol 12, No 2 (2018)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.017 KB) | DOI: 10.20527/jstk.v12i2.5047

Abstract

Pengaruh metode perendaman dan refluks menggunakan asam klorida untuk meningkatkan kadar silika abu vulkanik gunung Sinabung telah dilakukan. Dalam perlakuannya abu vulkanik yang telah dipreparasi dengan ukuran 100 mesh diuji kadar awalnya dengan instrumen XRF. Selanjutnya abu ditambah dengan HCl 12 M dan dipanaskan pada suhu 100oC  selama 2 jam dengan perbandingan abu dan HCl yaitu 1:10 (w/v) menggunakan kedua metode tersebut. Setelah itu didestruksi dengan NaOH 4 M dan filtrat yang dihasilkan ditetesi dengan HCl 3 M sampai terbentuk gel dan kemudian diuji. Karakteristik dan analisa produk silika gel diuji dengan FTIR, XRD dan SEM-EDS. Berdasarkan hasil analisa menggunakan FTIR menunjukkan adanya gugus Si-O dari Si-O-Si dari kedua silika yang berhasil dibuat. Karakterisasi menggunakan XRD menunjukkan bahwa silika yang dihasilkan berbentuk amorf. Berdasarkan pengujian menggunakan SEM-EDS kadar silika dihasilkan oleh metode perendaman yaitu sebesar 89,21% dan 66,15% untuk metode refluks dimana terjadi peningkatan kadar silika untuk metode perendaman dari kadar awal silika abu vulkanik sebesar 69,82% dan kedua silika gel tersebut mempunyai morfologi yang tampak sama, namun pada metode perendaman rongga dari pori yang terbentuk tampak lebih jelas.
Potensi Kandungan Zat Lilin Daun Pisang sebagai Spray Anti Air Ahmad Ramadhan; Dian Wardana; Rizka Alfi Fadhilah; Eddiyanto Eddiyanto
Jurnal Sains dan Terapan Kimia Vol 14, No 1 (2020)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (791.562 KB) | DOI: 10.20527/jstk.v14i1.6524

Abstract

Kondisi cuaca yang tidak menentu seperti hujan mengakibatkan beberapa masalah yang dapat mengganggu aktivitas sehari-hari. Pelindung air saat ini memiliki bentuk yang sulit untuk dibawa. Tumbuhan pisang yang banyak terdapat di Indonesia memiliki potensi dalam menangani permasalahan tersebut. Zat lilin yang terkandung didalam daun pisang menyebabkan daun pisang bersifat anti air. Penelitian ini bertujuan untuk mamanfaatkan zat lilin daun pisang tersebut sebagai bahan anti air yang dapat dikemas dalam bentuk spray anti air sehingga mudah dibawa. Proses kerja yang dilakukan adalah  mengekstraksi zat lilin daun pisang kering dengan pelarut n-heksana, etil asetat, dan etanol 96%. Setelah itu, zat lilin diisolasi dari ekstrak dengan pendinginan. Rendemen tertinggi dari zat lilin yang dihasilkan selanjutnya diformulasi dengan n-heksana dengan cara pelarutan pada berbagai jumlah zat lilin yang digunakan dan kemudian diuji. Hasil pengisolasian zat lilin daun pisang dengan berbagai pelarut menghasilkan rendemen tertinggi yaitu sebesar 1,46 % pada penggunaan n-heksana. Pengujian terhadap spray anti air yang dihasilkan menunjukan bahwa penggunaan 3 gram zat lilin dalam spray anti air mampu bersifat anti air dengan massa air yang terserap pada kain terendah yaitu sebesar 0,64 %. Pasca penyemprotan, kondisi optimum untuk waktu pengeringan adalah 180 sekon dengan % massa air yang terserap pada kain sebesar 0,65 % dan waktu bertahan untuk tetap bersifat anti air adalah lebih dari 30 menit.
Pengembangan Aplikasi Surat Keterangan Otomatis untuk Rumah Sakit dengan Menggunakan Algoritma Sequential Search Ahmad Ramadhan
INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Vol. 24 No. 2 (2022): Volume 24 No. 2 Desember 2022
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v24i2.5961

Abstract

Pasien pada rumah sakit kian hari kian meningkat, begitupun juga dengan teknologi yang kian hari kian menjadi pesat. Banyaknya pasien yang ada di suatu rumah sakit membuat para petugas tenaga Kesehatan kesulitan untuk melakukan kegiatan secara cepat terkhususnya membuat surat keterangan. Sejauh yang penulis lihat, bahwa sampai sekarangpembuatan surat keterangan untuk pasien di rumah sakit dibuat menggunakan aplikasi MS. Word. Tentu saja hal ini memakan banyak waktu juga rentan terdapat kesalahan karena isi dari surat keterangan diinput oleh manusia. Maka dari itu tujuan penulis membuat penelitian ini adalah dibangunnya sebuah aplikasi pembuat surat keterangan secara otomatis untuk rumah sakit yang dilengkapi dengan algoritma sequential search agar aplikasi ini dapat melakukan pencarian data yang cepat dan tepat. Hasil dari penelitian ini adalah Algoritma sequenyial search dapat mencari data dengan waktu 0.0110 milidetik. Algoritma sequential search ini sangat membantu aplikasi ini mencari data-data yang diperlukan oleh nakes secara cepat dan tepat. Tentu saja algoritma ini mempermudah tugas seorang nakes pada bagian membuat surat keterangan untuk seorang pasien.
Determinan Umat Nonmuslim dalam Menggunakan Jasa Bank Syariah Muhammad Mashduqi; Ahmad Ramadhan
Jurnal Masharif al-Syariah: Jurnal Ekonomi dan Perbankan Syariah Vol 9 No 5 (2024)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/jms.v9i5.24056

Abstract

The development of Islamic banking in Indonesia has become a benchmark for the success of the existence of Islamic economics. Along with the development of the times, Islamic banks have many advantages because they are not only based on sharia so that transactions and activities become halal, but are open and do not specialize only for Muslim customers, but also for non-Muslims. Based on the results of the researcher's observations of several non-Muslim customers, the profit sharing profit sharing at the Rantauprapat sharia sub-branch of North Sumatra Bank is greater than that of conventional banks. As for the formulation of the problem in this study, is there any effect of service, profit, and promotion on the decisions of non-Muslims in using the services of Islamic banks. The purpose of this study was to determine the effect of service, profit, and promotion on non-Muslims' decisions to use Islamic bank services. The theory in this study is Islamic banking, Islamic banking products and services, factors that influence non-Muslims to use Islamic banking services which consist of service, profit and promotion. The approach in this research is a quantitative approach, the data source used is primary data. The data collection technique used was a questionnaire with a population of 3085 non-Muslim customers and a sample of 97 non-Muslim customers. Data processing uses the SPSS Version 26 application. The analysis technique used is validity test, reliability test, classic assumption test, normality test, multiple linear regression analysis test, hypothesis test. Based on the results of the t test that the service variable does not have a partial effect on the decision of non-Muslims to use the services of the North Sumatra bank Rantauprapat Sharia sub-branch. Meanwhile, the profit and promotion variables have a partial effect on the decision of non-Muslims to use the services of the North Sumatran bank, the rantauprapat sharia sub-branch. Based on the f test, it can be seen simultaneously that the service, profit and promotion variables have a significant influence on the non-seasonal decision to use the services of the North Sumatra bank branch of the Rantauprapat Sharia sub-branch.
The Relationship Between Student Economic Status and Motivation to Study at Higher Education in Padangsidimpuan Siregar, Fitri Salsabila; Ahmad Ramadhan
Nusantara: Journal of Cultural Research Vol. 3 No. 1 (2025): June
Publisher : Business Finence Analyst Co.,

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to explore and explain the relationship between students' economic conditions and the spirit of learning at universities in Padangsidimpuan.  The methodology applied is descriptive qualitative, using a case study approach.  The informants in this study consisted of 10 students from diverse economic backgrounds, who were selected using purposive sampling method.  Information was obtained through in-depth interviews and observations of the students' academic and social environments.  The data analysis process was conducted through data reduction, data presentation, and conclusion drawing techniques.  The research findings indicate that students' economic conditions have an impact on their learning motivation.  Students who come from lower economic backgrounds often experience more difficulties in maintaining learning motivation, due to limited access to educational facilities and financial demands.  In contrast, students with better economic conditions have easier access to resources that can increase learning motivation, such as learning materials and support from family.  The findings are expected to provide a perspective for universities to design programs that have a positive impact on students' learning motivation, especially for those who come from economically disadvantaged backgrounds.
Analysis of the Potential of BRICS Currencies in Challenging the Dominance of the US Dollar in the Perspective of Islamic Monetary Economics: Advantages and Challenges Ahmad Ramadhan; Hasibuan, Syarinah Junianti
Nusantara: Journal of Cultural Research Vol. 2 No. 2 (2024): December
Publisher : Business Finence Analyst Co.,

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to analyze the potential of the BRICS currency in challenging the dominance of the US dollar from the perspective of Islamic monetary economics. The study examines the advantages and challenges associated with the emergence of the BRICS currency as an alternative to the US dollar in international trade and finance, focusing on the principles of Islamic monetary economics, which emphasize justice, stability, and sustainability. A qualitative method is used in this research, with data sourced from journals, books, and articles. The main analytical tools are exchange rates and foreign policy. The research findings indicate that the potential emergence of the BRICS currency is driven by longstanding dependence on the hegemony of the US dollar, which benefits the US more than developing countries. However, the BRICS currency is deemed less potential due to the need for substantial financial infrastructure and competition with the World Bank. Therefore, BRICS should consider an Islamic financial system based on principles of justice, sustainability, and economic independence.
Multiple Intelligensi: Kecerdasan Majemuk Andi Rafiqah Rahmah; Ahmad Ramadhan; Besse Marjani Alwi
PESHUM : Jurnal Pendidikan, Sosial dan Humaniora Vol. 4 No. 5: Agustus 2025
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/peshum.v4i5.10075

Abstract

Kecerdasan merupakan kemampuan yang dimiliki oleh individu, mencakup pengetahuan, keterampilan, dan keahlian dalam menyelesaikan berbagai masalah. Setiap individu secara alami memiliki beragam jenis kecerdasan, termasuk kecerdasan bahasa/linguistik, logis-matematis, visual-spasial, kinestetik, interpersonal, intrapersonal, musikal, dan naturalis. Namun, kombinasi serta proporsi dari kecerdasan yang dimiliki setiap individu tidaklah sama, dan hal ini sangat bergantung pada cara mereka mengembangkan kecerdasan yang ada. Penting untuk dipahami bahwa setiap individu dilahirkan dengan berbagai jenis kecerdasan. Oleh karena itu, diharapkan para pendidik tidak hanya memandang siswa yang cerdas dan berprestasi sebagai siswa yang unggul dalam bidang akademik saja. Terdapat banyak potensi berharga lainnya yang dimiliki siswa di luar kemampuan akademis. Kedelapan jenis kecerdasan tersebut dapat berfungsi secara independen satu sama lain, dan dengan memahami teori kecerdasan majemuk, seorang guru dapat menguasai serta menerapkan berbagai metode pembelajaran yang sesuai. Dengan demikian, peran guru sebagai pendidik, pembimbing, pelatih, penasihat, inovator, penggerak kreativitas, dan evaluator menjadi sangat penting untuk memastikan bahwa setiap anak didik dapat mencapai keberhasilan secara optimal.
Design and Simulation of Vienna Rectifier for Harmonic Reduction in Electric Vehicle Charging Systems Ahmad Ramadhan; Taufik Iqbal Miftaks; Nihayatun Nafisah; Bontor Panjaitan
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 19 No. 2 (2025)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v19i2.1772

Abstract

The development of electric-powered transportation has increased demand for electric vehicle chargers. Most chargers used are DC chargers since energy storage in electric vehicles relies on batteries. Therefore, a rectifier is required to convert AC power sources into DC. This study aims to develop a Vienna Rectifier for electric vehicle charging systems to achieve optimal power quality. The main focus is to enhance efficiency and power quality by implementing a PID control system to reduce Total Harmonic Distortion (THD) and improve the power factor. Simulations are conducted using MATLAB Simulink with the Clarke Transformation method to optimize voltage and current control. The simulation results show that the designed Vienna Rectifier achieves a THD value below 5%, in compliance with the IEEE-519 standard, with a power factor close to 1. This demonstrates that the application of PID control in the Vienna Rectifier can improve the efficiency of electric vehicle charging while reducing the negative impact of harmonics on the power grid.
THE EFFECT OF GOVERNANCE ON ECONOMIC GROWTH IN ASEAN COUNTRIES -, Muhammad Mashduqi; Ahmad Ramadhan
ShariaBiz International Journal of Economics & Business Vol. 2 No. 2 (2025): ShariaBiz International Journal of Economics & Business
Publisher : Fakultas Agama Islam Universitas Islam Al-Azhar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36679/stqqj321

Abstract

This study analyzes economic growth in 11 ASEAN countries (Indonesia, Malaysia, Singapore, Philippines, Myanmar, Brunei Darussalam, Cambodia, Laos, Thailand, Vietnam, Timor Leste) for the period 2018-2022 using the panel data analysis method with the Eviews 10 application. The focus of the research is to evaluate the effect of governance on economic growth, with indicators of Political Stability, Government Effectiveness, Regulatory Quality, Rule of Law, and Control of Corruption. Secondary data is obtained from the annual report of World Government Indicators (2023). The results showed that Political Stability, Regulatory Quality, and Control of Corruption had no significant effect on economic growth. This indicates that political stability, the government's ability to formulate policies, and regulations that support the private sector have not been able to directly influence economic growth in ASEAN countries. This research is quantitative in nature and contributes to the understanding of the relationship between governance and economic development in the ASEAN region.
Co-Authors -, Muhammad Mashduqi Achmad Abu Bakar Andi Rafiqah Rahmah Angelica Marcela Tana Besse Marjani Alwi Bontor Panjaitan Dewi Mahrani Rangkuty Dian Wardana Dian Yulis Wulandari Dimas Aji Wardana Eddiyanto Eddiyanto Eko Budi Prasetyo Elmafatriza Elisha E Hamka Ilyas Hasibuan, Syarinah Junianti Hendra Fahruddin Siregar Lisnawaty Simatupang Muhammad Mashduqi Nihayatun Nafisah Rantika Dewi Ginting Rhea Merryanti Silalahi Rizka Alfi Fadhilah Sahlan Siregar, Fitri Salsabila Syaikhul Falah Taufik Iqbal Miftaks Wike S Simamora