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All Journal Epsilon: Jurnal Matematika Murni dan Terapan Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Ilmiah Ekonomi Islam Jurnal Penelitian Pendidikan IPA (JPPIPA)
Febrianto Afli
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Materials Science & Nanotechnology Physics Social Sciences Transportation

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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.
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.
Sosialisasi Pembuatan Simanis Abang Ganteng (Sirup Manis Rimbang Kalimantan Tengah) sebagai Inovasi dan Potensi Sayuran Lokal Zimon Pereiz; Chuchita Chuchita; Efriyana Oksal; Febrianto Afli; Ahmad Irawan; Miranti Maya Sylvani
Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 12 No. 1 (2026): Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.12.1.159-167

Abstract

Many rimbang harvests, which are local vegetables from Central Kalimantan, are damaged and then thrown away because they are not marketable. This is clearly due to the relatively short shelf life of rimbang fruit. Farmers who depend on the harvest as their main source of income will certainly be disadvantaged by this. In addition, rotten rimbang vegetables will have a negative impact on the environment because they produce methane gas, one of the gases that causes global warming. So this community service program innovates rimbang, where rimbang is made into a syrup drink. Rimbang syrup can be a new innovation to create new products that are competitive, have high selling value, and are durable. The implementation of the community service program took place in the Habaring Hurung Village farmer group, Bukit Batu District, Palangka Raya City, Central Kalimantan Province. This activity program was carried out through 4 stages of activities, including location surveys, collection of raw materials, training in making eggplant dodol, and success indicators. The success indicators were carried out using the pre-test and post-test methods filled out by the activity participants in the form of a questionnaire. Based on the results of the activity, it can be concluded that this activity is able to increase insight and ability on how to make syrup with rimbang as the basic ingredient, even the residents can implement and apply this food innovation independently.
Analisis Proyeksi Harapan Lama Sekolah dalam Perspektif Maslahah: Studi Komputasi Grey GM(1,1) di Kota Palangka Raya Zulya Desmita; Febrianto Afli; Robiatul Witari Wilda; Mega Yumia
Jurnal Ilmiah Ekonomi Islam Vol. 12 No. 2 (2026): Jurnal Ilmiah Ekonomi Islam
Publisher : ITB AAS INDONESIA Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jiei.v12i2.19644

Abstract

This research aims to analyze and project the direction of human capital accumulation in Palangka Raya City through the School Expectancy Length (SEL) indicator. Within the framework of Islamic economics, human capital accumulation is viewed as a fundamental instrument for achieving maslahah through the reinforcement of intellectual capacity (Hifdz al-Aql). This study employs a descriptive quantitative approach using secondary time-series data from the Central Bureau of Statistics for the period 2010–2025. Data analysis was conducted using the mathematical modeling of the Grey Forecasting Model GM(1,1), which is superior in predicting trends with limited data without relying on strict statistical distribution assumptions. The results indicate that this model has a very high level of accuracy with a Mean Absolute Percentage Error (MAPE) of 0.865%. Based on the projection results, the School Expectancy Length in Palangka Raya City is predicted to continue rising, reaching 15.47 years by 2030. Substantively, these findings confirm a consistent expansion of human capital, where the future school-age population is projected to be capable of attaining a Bachelor's degree level of education. The implications of this study emphasize the importance of policy synchronization between enhancing human resource capacity and providing strategic employment opportunities to ensure inclusive and sustainable economic welfare in Palangka Raya City.
Co-Authors Ahmad Irawan Ahmad Muammar Kadafi Chuchita Desy Lutfiani Pratiwie Dita Monita Efriyana oksal Indah Gumilang Dwinanda Kadek Ayu Cintya Adelia Mega Yumia Miranti Maya Sylvani Tesdiq Prigel Kaloka Wilda, Robiatul Witari Zimon Pereiz Zulya Desmita