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All Journal Jurnal Pendidikan : Riset dan Konseptual Jurnal Al-Muta`aliyah : Jurnal Pendidikan Guru Madrasah Ibtidaiyah Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Jurnal Penelitian IPTEKS BUSTANUL FUQAHA: Jurnal Bidang Hukum Islam Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Civil Engineering Collaboration Al-Afaq: Jurnal Ilmu Falak dan Astronomi Jurnal Akuntansi, Manajemen Dan Ekonomi Islam (JAM-EKIS) At-Thullab : Jurnal Mahasiswa Studi Islam MIYAH: Jurnal Studi Islam JUSTICES: Journal of Law Al-Gafari: Manajemen dan Pendidikan Aslamiah: Jurnal Pendidikan, Ekonomi, Sosial dan Budaya Jurnal Hukum Islam Jurnal Intelek Insan Cendikia International Journal of Law, Crime and Justice Proceeding of International Conference on Social Science and Humanity Makkah: Journal Of Islamic Studies Jurnal JEETech
Ahmad Izzuddin
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Prediksi Jumlah Permintaan Darah Jenis Packed Red Cells Menggunakan Support Vector Regression Ahmad Izzuddin; Farhatin Nikmah; Nuzul Hikmah
Jurnal JEETech Vol. 6 No. 2 (2025): Nomor 2 November
Publisher : Universitas Darul Ulum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32492/jeetech.v6i2.6209

Abstract

The Blood Transfusion Unit (UTD) of the Indonesian Red Cross (PMI) in Probolinggo Regency faces challenges in managing blood supplies, particularly for Packed Red Cells (PRC), due to unpredictable fluctuations in demand. The imbalance between supply and demand often leads to shortages or surpluses, affecting the quality of healthcare services. This study aims to predict the demand for PRC to support more efficient inventory management. The method employed is Support Vector Regression (SVR), an approach within the Support Vector Machine (SVM) algorithm that is effective for regression and prediction tasks. Historical blood demand data was used to train the model. The results indicate that SVR provides sufficiently accurate predictions for all blood types, with the best performance achieved for blood type B, yielding a Root Mean Square Error (RMSE) of 0.0589 and a Mean Absolute Percentage Error (MAPE) of 7.11%. In conclusion, the SVR method can be effectively applied to forecast PRC demand and has the potential to support decision-making in blood stock management at the UTD PMI of Probolinggo Regency.
Initial Formulation of the Isha Prayer Time in the Book Al-Fiqh 'Alaa Madzahib Al-Arba'ah Durrotun Nahdliah An Najiah; Ahmad Izzuddin; M Bathoni
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 8 No. 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Mataram

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Abstract

This study discusses the formulation of the beginning time of Isha prayer according to the four schools of Islamic jurisprudence, namely Hanafi, Maliki, Shafi'i, and Hanbali, as explained in the book Al-Fiqh 'ala al-Madzahib al-Arba'ah by Abdurrahman al-Jaziri. The main issue in this study lies in the different interpretations of the meaning of syafaq as the sign of the end of Maghrib prayer time and the beginning of Isha prayer time. This research uses a qualitative method with a library research approach, employing descriptive-comparative analysis techniques to compare the opinions of scholars and relate them to astronomical phenomena. The results show that the Hanafi school argues that the beginning of Isha time starts after the disappearance of syafaq abyadh (white twilight), while the Maliki, Shafi'i, and Hanbali schools argue that it begins after the disappearance of syafaq ahmar (red twilight). These differences are influenced by the interpretation of hadith, geographical conditions, astronomical observations, and the legal reasoning methods of each school. In the Indonesian context, the opinion of the majority scholars is more widely applied because it is more suitable for the geographical conditions of the equatorial region and serves as the basis for determining prayer schedules by the Ministry of Religious Affairs. This study shows that differences of opinion regarding the beginning of Isha prayer time are not contradictions, but rather a form of the richness of ijtihad in Islamic jurisprudence.
Co-Authors Abdul Haris Rasyidi Agus Yulianto Ahmad Adib Rofiudin Akhmad Nadirin Alfi Karomah Alfi Ramadhan Dakka Fadilah M Harahap Desti Septiana Putri Diana Mulya Dewi Dina Nur Amilah Balbisi Durrotun Nahdliah An Najiah Erfaniah Zuhriah Farhatin Nikmah Fatmawati Fika Afhamul Fuscha Hafiz, Zahra Hayati Hafiza Samath Haris Hermawan Hesty Kesuma Putri Hikmah, Nuzul Imam Marzuki Iqbal Muhammad Jekti Rahayu Kharisma Agustina Khoirul Hidayah M Bathoni M. Basthoni M. Syam'un Rosyadi Mahsun Moch Rio Pambudi Muhammad Abdul Aziz Muhammad Abror Suriyanto Muhammad, Naila Arifa Muhyar Fanani nanaridwan, Mau'idhatul Hasanah Ridwan Nikmah, Farhatin Nuzul Hikmah Nuzul Hikmah Prisna Dea Leonita Puji Yani Radifa Isnain Nafila Rahma, Rahmasyarita. S Septy Holisa Umami Sinta, Dewi Suhaini Tutik Hamidah Varuq, Nauval Ilham Wahyuni Danial Khotimah Wahyuningsih, Yuniar Yulia Feriska Yulia Feriska Yusron Pahlevi