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All Journal Abdimas Indonesian Journal Limits: Journal of Mathematics and Its Applications
Oryza Safitri
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Religion Computer Science & IT Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Mathematics Social Sciences

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Peningkatan Literasi Anak Usia Dini melalui Pendampingan Calistung di Taman Kanak-Kanak Nuramaliyah, Nuramaliyah; Mikhratunnisa, Mikhratunnisa; Oryza Safitri; Lukmanul Hakim; Diah Anggeraini Hasri; Amry Purnama Mauladi; Fitriyantari
Abdimas Indonesian Journal Vol. 5 No. 1 (2025)
Publisher : Civiliza Publishing

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This community service aims to improve early childhood literacy through Calistung (Reading, Writing, and Counting) mentoring using the card method in Kindergarten. The card method is used to help children recognize letters, numbers, and improve reading and writing skills interactively. Mentoring activities are carried out by introducing various letter, number, and picture cards that are in accordance with the material being taught. Mentoring is carried out in a fun way through games and movements that involve the active participation of children. The evaluation results show that children have improved in recognizing letters, numbers, and reading and writing skills. This program has also succeeded in increasing children's motivation to learn in a fun way. With a visual approach and games, children find it easier to understand basic literacy concepts. Mentoring using the card method has proven effective in improving basic literacy skills in early childhood, creating a positive learning atmosphere, and supporting children's cognitive development
Kontrol Optimum pada Model Prey-Predator dengan Pemanenan pada Ikan Prey dan Ikan Predator Oryza Safitri; Mardlijah
Limits: Journal of Mathematics and Its Applications Vol. 16 No. 1 (2019): Limits: Journal of Mathematics and Its Applications Volume 16 Nomor 1 Edisi Ag
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

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Model prey-predator didasari oleh hubungan interaksi predasi antara suatu organisme yang memakan suatu organisme lainnya, dalam kasus ini yaitu ikan prey dan ikan predator. Selanjutnya diberi perlakuan pemanenan pada ikan prey dan ikan predator. Untuk menjaga agar tindakan pemanenan tidak mengakibatkan kelangkaan suatu jenis ikan, dilakukan kontrol optimum berupa penambahan makanan lain pada ikan predator. Kontrol optimum ini dimaksudkan agar hasil pemanenan yang didapatkan maksimal sekaligus menjaga keberlangsungan ekosistem pada ikan prey dan ikan predator. Kemudian didapatkan titik-titik ekuilibrium dengan satu titik ekuilibrium yang stabil yaitu di titik (75.39 , 4.20). Selanjutnya hasil kontrol optimal, populasi ikan prey dan ikan predator lebih banyak, dibandingkan populasi ikan prey dan ikan predator sebelum dikontrol.
Co-Authors Amry Purnama Mauladi Diah Anggeraini Hasri Fitriyantari Lukmanul Hakim Mardlijah Mikhratunnisa, Mikhratunnisa Nuramaliyah, Nuramaliyah