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All Journal JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Jurnal e-Komunikasi
Jeffry Kusuma
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Languange, Linguistic, Communication & Media Mathematics

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Dynamics of Intra-guild Predation Model with Stage Structure in Prey Hukmah Hukmah; Syamsuddin Toaha; Jeffry Kusuma
Jurnal Matematika, Statistika dan Komputasi Vol. 18 No. 1 (2021): September 2021
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/j.v18i1.14362

Abstract

The Intra-guild predation model is an interaction between three species where two of them compete and prey on each other for the same resource. This study considers the stage structure of prey on and combines Beddington-DeAngelis and Holling type I as functional responses in the model. Furthermore, the equilibrium point and stability of the model will be analyzed. The numerical result at the equilibrium point shows that the solution converging toward the equilibrium point so that the population is stable and will not become extinct with increasing time. In addition, the population tends to be stable when the density of prey is larger than the predator.
Analisis Dinamik Model Mangsa Pemangsa dengan Efek Allee Ganda dan Fungsi Respon Holling Tipe II Ismi Ra'yan Syarif; Syamsuddin Toaha; Jeffry Kusuma
Jurnal Matematika, Statistika dan Komputasi Vol. 18 No. 3 (2022): MAY, 2022
Publisher : Department of Mathematics, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/j.v18i3.19237

Abstract

In this article, a predator prey model with double Allee effects and Holling type II functional response is discussed. Strong and weak Allee effects were analyzed separately. The dynamic behavior of the model is analyzed by determining the equilibrium point and stability around the equilibrium point. From the analysis result, it is obtained that the trivial equilibrium point is locally asymptotically stable for the case of the strong Allee effect and the saddle unstable for the case of the weak Allee effect, while the boundary and coexistence equilibrium points are locally asymptotically stable if it satisfies several parameter conditions. Numerical simulations are carried out around the coexistence equilibrium point. The simulation results show that the Allee effect threshold affects prey population growth when experiencing a strong Allee effect. The growth of the prey population also depends on the initial conditions of the prey and predator population density. Furthermore, when the prey population experiences a weak Allee effect, there is no threshold must be exceeded for the population to survive so that for each initial condition however, the population will not experience extinction.
Service Quality Banquet Novotel Surabaya Hotel And Suites Jeffry Kusuma
Jurnal e-Komunikasi Vol 3, No 1 (2015): Jurnal E-Komunikasi
Publisher : Jurnal e-Komunikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.746 KB)

Abstract

Kualitas layanan banquet Novotel Surabaya Hotel and Suites menjadi topik yang dipilih karena Novotel merupakan satu-satunya hotel yang memiliki ruangan meeting terbanyak dibandingkan dengan hotel lainnya. Service Quality yang disampaikan oleh Banquet Novotel Surabaya Hotel and Suites kepada pelanggan memiliki 5 indikator yaitu keterandalan, kecepatan dan ketanggapan, kepercayaan, perhatian serta bukti fisik. Metode penelitian yang digunakan adalah metode kuantitatif deskriptif. Teori yang digunakan adalah teori service quality dan teori mengenai banquet. Dalam hal ini, penyampaian kualitas layanan banquet Novotel Surabaya Hotel and Suites sudah baik
Co-Authors Agustinus Ribal Hukmah Hukmah Ismi Ra'yan Syarif Muh. Hamzah Muhammad Nur -Hidayat Naimah Aris Syamsuddin Toaha