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All Journal Indonesian Journal of Urology International Journal of Technology And Business MEANS (Media Informasi Analisa dan Sistem) Journal of Artificial Intelligence and Digital Business Sammajiva: Jurnal Penelitian Bisnis dan Manajemen Metta: Jurnal Penelitian Multidisiplin Ilmu Jurnal Pengabdian Masyarakat Ilmu Komputer
Ramdhan, Dadan
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Religion Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Public Health Social Sciences

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The Effect of Financial Ratios on Stock Prices with Exchange Rates as a Moderating Variable (Study of BUMN Companies in the Construction Services and Basic Industries Sector Listed on the Indonesia Stock Exchange in 2014-2018) Ramdhan, Dadan
IJTB (International Journal of Technology And Business) Vol 3 No 2 (2019): IJTB | INTERNATIONAL JOURNAL OF TECHNOLOGY AND BUSINESS
Publisher : LPPM of STIMIK ESQ

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Abstract

                                                                                                                                   Abstract The purpose of this study was to examine the effect of Return on Equity (ROE), Earning Per Share (EPS) and Debt to Equity Ratio (DER) on stock prices with exchange rates as a moderating variable in construction sector companies and basic industries listed on the Indonesia Stock Exchange in period 2014-2018. This research is a quantitative study using multiple linear regression test, t test and coefficient of determination test. Previously, the classical panel data assumption test which included normality test, multicollinearity test, heteroscedasticity test and autocorrelation test. There are 8 BUMN construction and basic industry companies listed on the Indonesia Stock Exchange as research objects. The results of this study indicate that the Earning Per Share (EPS) of the company has a significant positive effect on the price of its shares. While the Debt to Equity Ratio (DER) and Return on Equity (ROE) of the company do not significantly influence the stock prices. The results of this study also showed that the exchange rate did not moderate the relationship between DER and stock prices in several observed companies.   Keywords: Earning Per Share (EPS), Debt to Equity Ratio (DER), Return on Equity (ROE), exchange rates, and Stock Price.
COMPARISON OF PERCUTANEOUS NEPHROLITOTOMY (PCNL) IN PRONE AND SUPINE POSITION: A SINGLE CENTRE EXPERIENCE REPORT Safriadi, Ferry; Ramdhan, Dadan
Indonesian Journal of Urology Vol 28 No 1 (2021)
Publisher : Indonesian Urological Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32421/juri.v28i1.643

Abstract

Objective: This study aims to compare outcomes of supine percutaneous nephrolithotomy to prone percutaneous nephrolithotomy as a traditional approach in Hasan Sadikin Hospital Bandung. Material & Methods: Data was taken from urology’s database between 2003-2012, which contain data of prone position (2003-2007), and supine position (2008-2012). Three hundred forty-nine patients were included in this study. We reviewed data on demography, stone burden, operating time, stone-free rate, transfusion rate, hospital stay, and major complications. Results: Of 174 patients underwent prone position, and 175 patients were part of the supine position. Age means of prone position was 51.0 years old, the supine position was 50.5 years old. The number of male patients was 65.5% for prone, and 66.1% for supine. The mean stone's largest diameter of prone was 23.87 mm, supine was 22.36 mm. The operating time of prone was 107 minutes; supine was 90 minutes. The stone-free rate of prone was 94.7%; supine was 91.3%. The mean hospital stays of prone was 14.3 days; supine was 9.6 days. The transfusion rate of prone position was 8.9%, supine was 7.2%. No major complications were recorded. Conclusion: Higher stone-free rates are achieved with patients in the prone position during PCNL. Supine position has shorter operating time, and hospital stay, lower blood transfusion rates. The complication rate is not different between the two positions.
Pengorganisasian, Memilih Personil dan Kurikulum Pendidikan dalam Persfektif Hadis Nabi Muhammad SAW Ramdhan, Dadan; Rosilah, Iis; Khoerulbariyyah, Farah Budiarti; Suarna, Dedi
Jurnal Penelitian Multidisiplin Ilmu Vol 3 No 4 (2024): Desember
Publisher : Melati Institute

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This research aims to find out the theory of organizing, selecting personnel and educational curriculum in the hadith perspective. This journal uses a qualitative approach with a literature study method. Organization and organizing are two things that are interconnected, if the organization is likened to a container, then organizing is the organism that makes it live. Organizing is the second step in organizational management after planning. Careful planning will not run perfectly, without anyone running and moving, without clarifying the work and who will do it. Therefore it is very important in an organization a personal selection mechanism. Personnel or members of the organization will be very influential in the process of moving the wheels of the organization. In the implementation of the Education Curriculum, it is very necessary to have organizational management and personal / organizational actors who are in line between the character and vision-mission of the organization so that the expected educational goals are achieved. The organization of a good education curriculum results in a good organizational form, starting from the work system, structure, resources to other aspects. This study will discuss organizing, selecting personal and educational curriculum in depth examined from the perspective of the Hadith of the Prophet Muhammad SAW.
Analisis Kelayakan Kawasan Ekonomi Khusus (KEK) Pariwisata dalam Meningkatkan Daya Tarik Investasi dan Perekonomian Lokal Winanto, Sujoko; Ramdhan, Dadan
Sammajiva: Jurnal Penelitian Bisnis dan Manajemen Vol. 2 No. 4 (2024): Desember: SAMMAJIVA: Jurnal Penelitian Bisnis dan Manajemen
Publisher : Sekolah Tinggi Agama Buddha Nalanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47861/sammajiva.v2i4.1611

Abstract

Tourism Special Economic Zones (SEZs) are strategic instruments for enhancing investment attractiveness and stimulating local economic growth. However, the effectiveness of Tourism SEZs in achieving these goals remains a subject of academic and policy debate. This study aims to analyze the feasibility of Tourism SEZs in boosting investment and regional economies through a literature review that examines economic theories, government policies, and case studies of existing SEZs. The research employs a qualitative approach based on a literature study from journals, books, and official reports. The findings indicate that the success of Tourism SEZs highly depends on factors such as investment incentives, supporting infrastructure, conducive regulations, and the active role of stakeholders. Additionally, SEZs with strong destination branding strategies tend to be more successful in attracting investment and increasing regional revenue. The study's implications highlight the importance of adaptive, data-driven policy design in managing Tourism SEZs to generate significant and sustainable economic impacts. Therefore, synergy between government, private sectors, and local communities is crucial in optimizing Tourism SEZs as a driver of local economic growth.
Clustering Data Persediaan Barang Dengan Menggunakan Metode K-Means Ramdhan, Dadan; Dwilestari, Gifthera; Dana, Raditya Danar; Ajiz, Abdul; Kaslani
MEANS (Media Informasi Analisa dan Sistem) Volume 7 Nomor 1
Publisher : LPPM UNIKA Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1056.632 KB) | DOI: 10.54367/means.v7i1.1826

Abstract

UD. Anugerah Sukses Mandiri merupakan perusahaan yang bergerak dibidang distribusi food dan non food. Transaksi barang yang berjalan terus meningkat, sehingga perusahaan mengalami permasalahan dalam menentukan jumlah persediaan barang, dikarenakan jumlah permintaan barang yang dibutuhkan selalu berubah setiap waktu. Persediaan barang merupakan suatu aktivitas lancar yang meliputi barang-barang milik perusahaan dengan maksud dijual kembali pada suatu periode usaha normal. Data mining merupakan proses yang menggunakan teknik statistik, matematika, kecerdasan buatan dan machine learning untuk mengekstraksi dan mengidentifikasi informasi yang terkait dari berbagai warehouse. Tujuan penelitian ini dengan memanfaatkan data mining yaitu untuk melakukan pengelompokan barang dan meningkatkan akurasi klasterisasi data persediaan barang dengan menggunakan metode K-Means Clustering. Dengan metode K-Means ini dapat mempartisi data ke dalam kelompok sehingga data berkarakteristik sama akan dimasukan ke dalam satu kelompok yang sama dan data yang berkarakteristik berbeda dikelompokan kedalam kelompok yang lain, karena metode ini menggunakan centroid (rata-rata) sebagai model dari cluster. Hasil penelitian yang didapat berupa pengelompokan data menjadi 2 kluster yaitu data dengan kluster terendah/sedikit dan kluster tertinggi/terbanyak. Sehingga mendapatkan kesimpulan bahwa clustering persediaan barang dengan menggunakan metode K-Means ini cukup baik dari sisi nilai average within distance dan kompleksitas waktu. Keyword : Data Mining, K-Means Clustering, Persediaan barang
MENEMUKAN PELUANG BISNIS DENGAN MINIM RESIKO PADA PENSIUNAN PT POS INDONESIA Mariah, Mariah; Ramdhan, Dadan; Wiananto, Sujoko; Jalaeha, Liya Siti
Jurnal Pengabdian Masyarakat Ilmu Komputer Vol. 2 No. 2 (2025): Mei
Publisher : Yayasan Nuraini Ibrahim Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70248/jpmik.v2i2.2733

Abstract

Masa pensiun menjadi fase kehidupan yang sangat menantang, terutama bagi individu yang terbiasa dengan rutinitas kerja dan sumber penghasilan tetap. Kegiatan pengabdian masyarakat ini bertujuan untuk membantu para pensiunan PT Pos Indonesia dalam menemukan ide bisnis yang tepat sebagai alternatif kegiatan produktif dan sumber penghasilan di masa pensiun. Kegiatan ini dilaksanakan melalui webinar interaktif, diskusi, dan pendampingan individu untuk membantu peserta dalam menentuka bisnis yang tepat dan minim resiko . Materi yang diberikan mencakup langkah-langkah menemukan ide bisnis, contoh ide bisnis yang cocok untuk pension dan tips memulai bisnis. Hasil kegiatan menunjukkan bahwa sebagian besar peserta merasa lebih percaya diri dan termotivasi untuk memulai usaha sesuai dengan minat dan kemampuan masing-masing. Kegiatan ini diharapkan dapat menjadi inspirasi bagi pensiunan lainnya untuk tetap aktif, mandiri, dan berdaya secara ekonomi.
The Role of ESG Disclosure in Attracting Sustainable Investment in Indonesia’s Capital Market Ramdhan, Dadan
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 3 (2025): Agustus - October
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i3.2484

Abstract

Environmental, Social, and Governance (ESG) disclosure is increasingly recognized as a crucial driver of sustainable investment in capital markets, including Indonesia, where it is expected to enhance transparency, strengthen investor confidence, and direct financial resources toward companies with sustainable practices. Nonetheless, empirical realities show that many Indonesian corporations adopt a compliance-oriented approach, resulting in fragmented and inconsistent disclosures that limit the comparability and credibility of sustainability reports. This study employs a qualitative method with a library research approach, drawing on academic publications, regulatory documents, and corporate reports to analyze how ESG disclosure influences the attractiveness of sustainable investment. The findings indicate that regulatory frameworks established by the Financial Services Authority (OJK) and the Indonesia Stock Exchange (IDX) have provided an important foundation for institutionalizing ESG practices; however, implementation remains hindered by regulatory fragmentation, limited corporate capacity, and risks of greenwashing. ESG disclosure, while serving as a potential signaling mechanism for investors, has yet to fully function as a decisive factor in capital allocation due to uneven reporting quality and insufficient standardization. The study concludes that strengthening disclosure credibility through harmonized standards, enhanced monitoring, and capacity building is critical to advancing sustainable investment in Indonesia. Practically, these findings suggest that regulators, corporations, and investors must collaborate to improve the quality and reliability of ESG reporting, while academically, the study contributes to sustainable finance literature by highlighting gaps in sectoral practices, the integration of Islamic finance, and the role of technological innovations in enhancing ESG data verification.
Co-Authors Abdul Ajiz, Abdul Ferry Safriadi Gifthera Dwilestari Jalaeha, Liya Siti Kaslani Khoerulbariyyah, Farah Budiarti Mariah Mariah, Mariah Raditya Danar Dana Rosilah, Iis Suarna, Dedi Sujoko Winanto, Sujoko Wiananto, Sujoko