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All Journal Electronic Journal of Graph Theory and Applications (EJGTA) Indonesian Journal of Mathematics and Natural Sciences Sainteknol : Jurnal Sains dan Teknologi International Journal of Advances in Intelligent Informatics Educational Management Humanis : Jurnal Ilmu-Ilmu Sosial dan Humaniora JRPM (Jurnal Review Pembelajaran Matematika) PROFIT JTAM (Jurnal Teori dan Aplikasi Matematika) Unnes Journal of Mathematics Education Research Journal of Primary Education Symmetry: Pasundan Journal of Research in Mathematics Learning and Education M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika SEPREN: Journal of Mathematics Education and Applied Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Unnes Journal of Mathematics Proceeding ISETH (International Summit on Science, Technology, and Humanity) Jurnal Pengabdian Kepada Masyarakat SJME (Supremum Journal of Mathematics Education)
Isnaini Rosyida, Isnaini
Department Of Mathematics, Universitas Negeri Semarang, Semarang, Indonesia
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Social Sciences Other

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Meta Analysis: The Effect of Treffinger Learning Model on Students' Mathematical Creative Thinking Ability Wahyuningsih, Vebryana; Isnarto, Isnarto; Hendikawati, Putriaji; Mariani, Scolastika; Rosyida, Isnaini
SJME (Supremum Journal of Mathematics Education) Vol 9 No 1 (2025): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v9i1.94

Abstract

This study aims to determine the effect of Treffinger learning model on students' mathematical creative thinking ability, based on previous research articles. The method used in this research is meta-analysis. The results of the analysis through the calculation of the t-test and effect size show that , indicating that the average mathematical creative thinking ability of students who use the Treffinger model is higher than the average students who follow conventional learning. Thus, there is a significant influence between the mathematical creative thinking ability of students using the Treffinger model, with an effect size of 1.02, which is classified in the large category.
Penentuan Spektrum pada Variasi Graf Barbel Putri, Neli Septiana; Rosyida, Isnaini
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Volume 13 Issue 3 December 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/euler.v13i3.33968

Abstract

This study aims to analyze the determination of the spectrum of barbell graph variations, where the variations are made by modifying the number of nodes on the bridge between complete graphs in a barbell structure. The spectrum contains the eigenvalues of the adjacency matrix of the barbell graph variations along with their multiplicities. The analysis is conducted manually using linear algebra approaches such as cofactor expansion, characteristic polynomial factorization, the rational root theorem, and Horner’s scheme. The results are then validated using Python programming. The findings of this study show that the longer and more complex the bridge connecting the two complete graphs, the greater the diversity of eigenvalues produced. The spectrum of the barbell graph B(n,1)B(n, 1)B(n,1) consists of the eigenvalues λ1,n−1,λ2,−1,λ3\lambda_1, n - 1, \lambda_2, -1, \lambda_3λ1,n−1,λ2,−1,λ3 with multiplicities 1,1,1,2n−3,11, 1, 1, 2n - 3, 11,1,1,2n−3,1. Furthermore, the spectrum of the barbell graph B(n,2)B(n, 2)B(n,2) consists of the eigenvalues λ1,λ2,λ3,λ4,−1,λ5,λ6\lambda_1, \lambda_2, \lambda_3, \lambda_4, -1, \lambda_5, \lambda_6λ1,λ2,λ3,λ4,−1,λ5,λ6 with multiplicities 1,1,1,1,2n−4,11, 1, 1, 1, 2n - 4, 11,1,1,1,2n−4,1, respectively. This research provides theoretical contributions regarding the relationship between complex graph structures and their spectral representations.
PUPUK ORGANIK CAIR “JAKABA” SEBAGAI ALTERNATIF MEDIA PERTANIAN BERKELANJUTAN DI DESA BALONGDOWO Rosyida, Isnaini Anniswati; Erison, Yendra; Isabel F, Natasya; Wati, Sinta; Rohmah, Izzatur; Susilo , Edi; Dwi P, Muh. Dandy
Jurnal Pengabdian kepada Masyarakat Vol. 12 No. 2 (2025): JURNAL PENGABDIAN KEPADA MASYARAKAT 2025
Publisher : P3M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/abdimas.v12i2.9069

Abstract

Liquid Organic Fertilizer (POC), known as Jakaba (Eternal Lucky Mushroom), is an innovative natural fertilizer produced through a fungal fermentation process from various selected organic components. The main composition in making this fertilizer involves ingredients that are very easy to find in the surrounding environment, such as rice bran, shrimp paste (terasi), bean sprouts, rice washing water (leri), bamboo roots, bamboo leaves, and molasses as an energy source for microorganisms. The combination of these ingredients creates a nutrient-rich growing medium for Jakaba fungi, which then produces a fermented liquid with a very complete content of macro and micro nutrients for plants. Jakaba fertilizer has been widely known by farmers for its extraordinary ability to improve soil fertility and maintain overall plant health. For the people of Balongdowo Village, the application of this fertilizer is a strategic step and a sustainable choice in modern agricultural practices. This is because the production process is relatively easy, uses abundant natural ingredients, and is very friendly to environmental sustainability. The use of Jakaba provides a real solution for farmers to reduce dependence on synthetic chemical fertilizers, which if used excessively and continuously can damage the soil ecosystem, kill good microbes, and reduce land productivity in the long term.
Co-Authors - Hwihanus Abdurahim, Abdurahim Adi Nur Cahyono Anggraini, Lana Aristya Arifah, Nafiqotun Asih, Tri Sri Noor Aula, Maulida Fatma Reza Baihaqi, Muhamad Adzib Budi Waluya, St. Danieryanto, Erlia Dewi, Nuraliftsa Maharani Diari Indriati Dwi P, Muh. Dandy Erison, Yendra Fitriyani, Eka Retna Hardi Suyitno Have Zulkarnaen Huda, Muhamad Nurul Indah E. Wijayanti Isabel F, Natasya Isnarto, Isnarto Iwan junaedi Jahfaludin, Abi Junaedi , Iwan Kharomah, Siti Ismiatul Kiki A. Sugeng Kristina Wijayanti Mashuri Mashuri Mulyono Mulyono Nisarohmah, Nur Ilmia Noriza Munahefi, Detalia Novi Darmayanti Nurdini, Eka Nurhalisha, Erina Nurkaromah Dwidayati, Nurkaromah Priscilia, Priscilia Monica Praneswari Putri, Neli Septiana Putriaji Hendikawati Rachmani Dewi, Nuriana Radian Sri Rama Riawati, Beti Riyadhotul Janah, Siti Rochmad - Rohmah, Izzatur Safitri, Fristy Aulia Salsadina, Nida Alifa Scolastika Mariani Siti Muawanah Siti Nur Hidayati Slamet Riyadi St. Budi Waluya Suparmi Suparmi Suryono Suryono Susanti, Desmiani Susilo , Edi Sutri Handayani W. Widodo Wahyuningsih, Vebryana Wardono Wardono Wati, Sinta Wibowo, Harris Adi Widiantomo, Gilar Ajie Wiharno, Wiharno Zaenuri Mastur