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All Journal Epsilon: Jurnal Matematika Murni dan Terapan Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pustaka Mitra : Pusat Akses Kajian Mengabdi Terhadap Masyarakat
Febrianto Afli
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences Transportation Other

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ANALISIS KESTABILAN MODEL PREDATOR PREY DENGAN TINGKATAN USIA PADA DUA PREY DAN DUA PREDATOR DENGAN FUNGSI RESPON MONOD HALDANE DAN KANIBALISME Robiatul Witari Wilda; Dita Monita; Febrianto Afli; Ahmad Muammar Kadafi
EPSILON: JURNAL MATEMATIKA MURNI DAN TERAPAN Vol 17, No 2 (2023)
Publisher : Mathematics Study Program, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/epsilon.v17i2.10685

Abstract

This paper discusses a predator-prey stage structure model for two predators and two preys with Monod Haldane and cannibalism response functions that describe the interactions between populations of young prey, adult prey, young predator, and adult predator. In this model it is assumed that only adult predators are capable of attacking to consume young predators, only adult prey are capable of reproduction, there is a Monod-Haldane effect describing the phenomenon of group defense where predation is reduced, or even prevented altogether, because the ability increases from prey for further defense or camouflage when their numbers are large enough. Dynamic analysis is carried out by determining the equilibrium point and its existence conditions and analyzing the local stability of the equilibrium point. The predator-prey model has three equilibrium points, namely the trivial equilibrium point, the prey free equilibrium point and an interior point that exists under certain conditions. The equilibrium points is locally asymptotically stable under certain conditions. The results of the numerical simulations show suitability with the results of dynamic analysis.
Peningkatan Literasi Matematika Melalui Program Pembinaan Klub Matematika Pada Siswa SMA Negeri 1 Palangka Raya Mega Yumia; Robiatul Witari Wilda; Febrianto Afli; Regina Wahyudyah Sonata Ayu
Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat) Vol 5 No 3 (2025): Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat)
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakamitra.v5i3.940

Abstract

SMA Negeri 1 Palangka Raya merupakan salah satu sekolah menengah atas negeri yang sudah lama berdiri di kota Palangka Raya. Namun belum ada ruang untuk mewadahi siswa-siswi SMA Negeri 1 Palangka Raya yang memiliki minat di bidang matematika. Kendala sumber daya yang kompeten merupakan salah satu alas an mendasar. Hal ini juga mempengaruhi kesiapan siswa SMA Negeri 1 Palangka Raya menghadapi olimpiade di bidang matematika. Padahal cukup banyak siswa yang ternyata memiliki minat di bidang matematika. Karenanya, kegiatan pembinaan klub matematika di SMA Negeri 1 Palangka Raya dipandang perlu. Kegiatan ini dilaksanakan melalui beberapa tahap, yaitu 1) penjajakan, 2) oenyusunan jadwal pelatihan, 3) sosialisasi kegiatan dan perekrutan peserta, 4) pelatihan, dan 5) evaluasi. Melalui kegiatan ini, literasi matematika siswa dapat ditingkatkan melalui pelatihan di bidang seperti geometri, aljabar, dan teori bilangan. Pelatihan ini tidak hanya memperdalam pemahaman siswa tetapi juga mempersiapkan mereka untuk kompetisi serta memberikan wadah bagi pengembangan minat matematika.
Pemetaan Prediksi Wilayah Rawan Bencana Hidrometeorologi di Provinsi Kalimantan Tengah Indah Gumilang Dwinanda; Kadek Ayu Cintya Adelia; Robiatul Witari Wilda; Febrianto Afli; Tesdiq Prigel Kaloka; Desy Lutfiani Pratiwie
Jurnal Penelitian Pendidikan IPA Vol 10 No 2 (2024): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i2.6238

Abstract

Disaster is an event or a series of events that threatens and disrupts people's lives and livelihoods, caused by natural and/or non-natural factors and human factors, resulting in human casualties, environmental damage, property losses, and psychological impacts. Hydrometeorological disasters are events related to water, atmosphere, and oceans. It is recorded that hydrometeorological disasters occurring in Indonesia reach 86%, including floods, tornadoes, landslides, forest and land fires, and droughts. Specifically, in Central Kalimantan Province, forest and land fires and floods are frequent disasters. Both fall into the category of hydrometeorological disasters, closely related to the climate in Central Kalimantan. In this study, the prediction of rainfall, temperature, and humidity values in Central Kalimantan Province was calculated using the Auto-Regressive Integrated Moving Average method at 5 stations in the province. Subsequently, the prediction analysis of flood events was carried out using the machine learning random forest method based on the rainfall data, temperature, humidity, and event data. According to the calculation results, flood disasters are not predicted to affect almost all areas of Central Kalimantan Province. However, by the end of 2023, it is anticipated that most areas in the province will still be categorized as experiencing a normal level of drought. Notably, there are two areas that must increase awareness of this drought disaster, namely Pulang Pisau and Sampit, especially in October 2023.
Co-Authors Ahmad Muammar Kadafi Desy Lutfiani Pratiwie Dita Monita Indah Gumilang Dwinanda Kadek Ayu Cintya Adelia Mega Yumia Regina Wahyudyah Sonata Ayu Tesdiq Prigel Kaloka Wilda, Robiatul Witari