Article Per Year (5 Year)
p-Index From 2021 - 2026
0.659
P-Index
This Author published in this journals
All Journal Biology, Medicine, & Natural Product Chemistry Jurnal Fourier
Riyanto Riyanto
UIN Sunan Kalijaga Yogyakarta
Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Mathematics Medicine & Pharmacology Public Health

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Developing Virtual Herbarium of Sunan Kalijaga Islamic State University as a Plant Taxonomy Complementary Lab Work Material Muhammad Ja'far Luthfi; Riyanto Riyanto; Widodo Widodo
Biology, Medicine, & Natural Product Chemistry Vol 12, No 2 (2023)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2023.122.625-630

Abstract

This research combines the fields of biology, photography, graphic design, and informatics. This study aims to develop a virtual herbarium museum through website media. The research was done to improve the accessibility and sharing of data (free access) herbarium. Website development was performed using the SDLC (Systems Development Life Cycle) which consists of 5 (five) steps, namely planning a strategic website development plan, determining the scope of development, analyzing the required needs, designing and implementing website creation and testing. Based on the results of system testing and implementation, it can be concluded that the virtual herbarium museum has been successfully built as a plant taxonomy complementary lab work material.
Designing Interactive Online Atlas of Mammalian Anatomy (Cavia cobaya) Muhammad Ja'far Luthfi; Riyanto Riyanto
Biology, Medicine, & Natural Product Chemistry Vol 14, No 2 (2025)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/biomedich.2025.142.1625-1628

Abstract

This research is an integration between fields of Biology, Photography, Design, and Informatics Engineering. The study aimed to develop an interactive online atlas of mammalian anatomy to improve the accessibility and data sharing (free access) of mammalian anatomy. Website was developed using SDLC (System Development Life Cycle) which consists of five steps as follows: website’s strategic planning, determine the scope of website, website’s requirements analysis, design and implementations of website, and testing. Based on the results of testing and system implementation, it can be concluded that online interactive atlas (AtlasAnatomy.org) had been successfully built as anatomical educational media of mammal.
Prime Graph Over Semidihedral Group and Its Connectivity Indices Riyanto Riyanto; Arif Munandar
Jurnal Fourier Vol. 15 No. 1 (2026)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/fourier.2026.151.54-62

Abstract

This study investigates the structural properties and topological connectivity indices of the prime graph associated with the semidihedral group of order 2 raised to the power of n, whose vertex set consists of all elements of the group. Two distinct vertices are adjacent precisely when the greatest common divisor of their orders is a prime number. Since the identity element has order one, it is not adjacent to any other vertex and therefore forms an isolated vertex. Consequently, the prime graph is disconnected and consists of the isolated identity element together with a non-trivial connected component containing all remaining group elements. The vertex set is partitioned into three disjoint subsets consisting of the identity element, elements of order two, and elements of order greater than two. Based on this partition, we characterize the degree sequence, diameter, radius, and clique number of the graph. Furthermore, exact closed-form analytical formulas are obtained for several fundamental degree-based and distance-based topological connectivity indices, including the First Zagreb index, Wiener index, Hyper-Wiener index, Harary index, and Forgotten index.
Co-Authors Arif Munandar Muhammad Ja'far Luthfi Widodo Widodo