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17 articles for “H. A. Ramadhan”
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Research ArticleOpen accessIn the author namesCombination of Organic, Chemical and Biological Fertilizers to Accelerate Mangrove Growth on the East Coast of Sumatra, IndonesiaBudi Utomo, Yuda Ilham Ramadhan, Yunasfi et al.Efforts to rehabilitate mangroves often do not yield satisfactory planting results. Low maintenance measures due to the tidal situation of the area make it difficult for rehabilitation actors to carry out fertilization and insertion. This study aims to increase the growth of Rhizophora mucronata with fertilization treatment during planting with various biological fertilizers. The study was designed using a completely … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 24 Oct 2025 · 2,506 accessesView PDFCite
Research ArticleOpen accessIn the author namesOptimizing KNN for Face Recognition and Location Detection in Mobile Employee Attendance Systems Using Machine LearningPainem, Hari Soetanto, Achmad Solichin, Ibnu RamadhanEmployee attendance is critical to company operations, particularly for firms involved in ATM installations collaborating with banks. An effective attendance system enables bank vendors to verify the completion of ATM installations. The current attendance method employed by the company requires employees to send photos of themselves with the installed ATM, including the machine number and installation location. The company's admin … …Journal of Computer Science, Vol. 21, Issue 5 · 14 Apr 2025 · 5,996 accessesView PDFCite
Review ArticleOpen accessIn the author namesBig Data Analytics (BDA) in the Research Landscape: Using Python and VOSviewer for Advanced Bibliometric AnalysisSamsul Arifin, Muhammad Faisal, Monica Mayeni Manurung et al.Big data analytics has become a key element in research and development in various fields. With the ability to analyze large and complex amounts of data, this technology allows researchers to identify patterns, trends, and insights that were not seen before. This article explores how big data analytics is applied in various disciplines, including computer science, engineering, and mathematics. We … …Journal of Computer Science, Vol. 21, Issue 2 · 16 Jan 2025 · 6,593 accessesView PDFCite
Research ArticleOpen accessIn the author namesTestosterone Concentration, Libido and Spermatozoa Quality in Gembrong Goats after in vivo and in vitro PGF2α AdministrationHusnurrizal, Sri Wahyuni et al.The Gembrong goat population is currently in a critical state. The preliminary study results show that one of the factors causing the population decline is the low fertility of male goats characterized by low sperm quality. The improvement of the spermatozoa quality can be performed with the administration of PGF2α. This study aims to determine the difference in semen quality … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 2 · 29 Apr 2024 · 5,549 accessesView PDFCite
Research ArticleOpen accessIn the author namesStrengthening the Integrity of Forwarding First Communication Using Forward Key Chain and Bloom Filter in the Wireless Sensor NetworksMuhammad Taqqyyudin Ilham Ramadhan, Farah Afianti, Bambang Ari Wahyudi et al.Wireless Sensor Networks (WSNs) are collections of sensor nodes that can help people monitor things wirelessly, replacing the need for human presence in hard-to-reach areas. While forwarding first communication reduces communication delays among the sensor nodes, it lacks a security mechanism. Since sensor nodes have limited resources, using complex security measures can shorten their lifetime. This study proposes a protocol … …Journal of Computer Science, Vol. 19, Issue 3 · 14 Feb 2023 · 5,664 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Fuzzy Decision Support Model for Cropland Recommendation of Food Cropping in IndonesiaDitdit Nugeraha Utama, Alvali Zaqi Taufan, Al Ghifari Hartzani et al.Indonesia has an incredibly wide area for agriculture. The agriculture area in Indonesia has specific characteristic for each area (e.g., water capacity, land porosity, land height, etc.,). Furthermore, food crop is the most plant planted in Indonesia; rice, corn, red bean, green bean are some important food crops. The study aims to create a Decision Support Model based on fuzzy … …Journal of Computer Science, Vol. 16, Issue 4 · 29 Apr 2020 · 7,512 accessesView PDFCite
Research ArticleOpen accessIn the author namesImage Cryptography with Least Squares ApproximationsMustafa K. Ramadhan, Adil AL-RammahiSecurity of digital images has become one of the most important issues in network technologies. Different techniques have been evolved over the past few years to provide security for digital images through concealing information, image scrambling and image encryption. The aim of this work is to enhance the network security level by using the cryptographic method based on the Least … …Journal of Computer Science, Vol. 15, Issue 11 · 20 Nov 2019 · 7,335 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Ecological Factors on Snails Infection by Schistosoma japonicum in Central Sulawesi, IndonesiaSutrisnawati Mardin, Teguh Wahju Sardjono, Loeki Enggar Fitri et al.In Central Sulawesi, Napu valley and Lindu Lake (Indonesia), Schistosoma are spread in the host snails (Oncomelania hupensis lindoensis). In the present work, the influence of ecological factors on the spreading of Schistosoma japonicum cercariae infection in the snails were analyzed. The Oncomelania hupensis lindoensis snails were collected and analyzed by ring method in the form of graphs and matrices. … …American Journal of Environmental Sciences, Vol. 14, Issue 2 · 5 Apr 2018 · 8,495 accessesView PDFCite
Research ArticleOpen accessIn the author namesMolecular Analysis of KRAS Mutation Associated with Colorectal Cancer in Iraqi PatientsRehab Subhi Ramadhan, Aola Sabah Ali, Rebah Najah AlgafariThe role of KRAS gene was investigated in manifestation of colorectal cancer in Iraqi patients. A total 40 blood samples were collected during October 2016 to January 2017 from AL-Amal Hospital in Baghdad and 20 blood samples from healthy subjects served as control. Blood samples were collected from subjects of 40-70 years old for both patients and control. The study … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 1 · 3 Mar 2018 · 9,027 accessesView PDFCite
Research ArticleOpen accessIn the author namesSuccess Factors for E-Livestock: An E-Government InitiativeArief Ramadhan, Dana Indra Sensuse, Muladno, Aniati Murni ArymurthyE-Government system has been developed in various countries. Currently, e-Government specifically appears in various paradigms, such as e-Procurement, e-Voting. Lastly, has emerged a new paradigm in e-Government, called e-Livestock. Therefore, in this study, we will propose and discuss about several success factors for e-Livestock in Indonesia. We will take into account four previous researches that are related to this research. … …Journal of Computer Science, Vol. 9, Issue 3 · 3 May 2013 · 6,580 accessesView PDFCite