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All Journal Jurnal Pelita Pendidikan JOURNAL OF SCIENCE AND SOCIAL RESEARCH Imajiner: Jurnal Matematika dan Pendidikan Matematika Best Journal (Biology Education, Sains and Technology)
Saragih, Sisca Sri Dewi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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Pemodelan Matematika Tipe S1S2E1E2I1I2T Pada Diabetes Melitus Tipe 2 Dengan Mempertimbangkan Treatment Yang Diakibatkan Adanya Pengaruh Obesitas Saragih, Sisca Sri Dewi; Tarigan, Lola Zeramenda Br; Ahkrizal, Afdhal; Hasibuan, Hokkop Efendi
Imajiner: Jurnal Matematika dan Pendidikan Matematika Vol 7, No 4 (2025): Imajiner: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/imajiner.v7i4.23552

Abstract

Diabetes Mellitus Type 2 is one of the largest contributors to the world of health in non-communicable diseases in Indonesia. Many people are affected either because of genetic obesity or obesity due to food. Mathematical modeling is one way to visualize the development and spread of Type 2 diabetes mellitus. The model used in this study is S1S2E1E2I1I2T and its stability will be seen. The article discusses the stability of fixed points using the Jacobian matrix and the Routh-Hurwitz criteria as well as the Castilo-Chaves and Song Theorem, reproduction numbers, and their numerical analysis.
SEGMENTASI CALON ORANG TUA BERDASARKAN MINAT DAN PERILAKU ONLINE UNTUK MENYUSUN STRATEGI PROMOSI SEKOLAH TK AL-FARIQ Irawati, Novica; Saragih, Sisca Sri Dewi; Johny, Johny
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 3 (2025): August 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i3.4088

Abstract

Abstract: The behavior of prospective parents in choosing kindergartens is increasingly shifting towards the use of online media as the main source of information, without neglecting the influence of personal recommendations. This study aims to identify the segmentation of prospective parents based on their interests and behaviors in seeking information about schools, both through digital channels such as social media and the internet, and conventional channels such as verbal communication. The study was conducted at AL-FARIQ Kindergarten with data collection through structured interviews using Google Forms. Data were analyzed using K-Means and Rapid Miner software with cluster analysis methods to group respondents based on similarities in digital behavior. The research results are expected to produce a segmentation document that includes the profile of each segment and recommendations for more targeted digital promotion strategies. This research is at Technology Readiness Level (TRL) level 3 as an initial validation of the data-driven segmentation approach, and is expected to serve as the basis for the development of a more integrated digital promotion system in the future. Keywords: K-Means; Information Behavior; Prospective Parents; Promotion Strategy. Abstrak: Perilaku calon orang tua dalam memilih taman kanak-kanak (TK) semakin bergeser ke arah pemanfaatan media online sebagai sumber informasi utama, tanpa meninggalkan pengaruh rekomendasi personal. Penelitian ini bertujuan untuk mengidentifikasi segmentasi calon orang tua berdasarkan kecenderungan minat dan perilaku mereka dalam mencari informasi tentang sekolah, baik melalui saluran digital seperti media sosial dan internet, maupun jalur konvensional seperti komunikasi lisan. Studi dilakukan di TK AL-FARIQ dengan pengumpulan data melalui wawancara terstruktur menggunakan Google Form. Data dianalisis menggunakan perangkat lunak RapidMiner dan metode K-Means dengan cluster analysis untuk mengelompokkan responden berdasarkan kesamaan perilaku digital. Hasil penelitian diharapkan menghasilkan dokumen segmentasi yang memuat profil masing-masing segmen serta rekomendasi strategi promosi digital yang lebih tepat sasaran. Penelitian ini berada pada Tingkat Kesiapan Teknologi (TKT) level 3 sebagai validasi awal terhadap pendekatan segmentasi berbasis data, dan diharapkan menjadi dasar pengembangan sistem promosi digital yang lebih terintegrasi di masa depan. Kata kunci: K-Means; Perilaku Informasi; Calon Orang Tua; Strategi Promosi
Comparative Evaluation of Cytokinin-Induced In Vitro Shoot Multiplication in Black Ginger (Kaempferia paviflora Wall. ex Baker) Tambunan, Muhammad Iqbal H; Tarigan, Lola Zeramenda; Saragih, Sisca Sri Dewi
BEST Journal (Biology Education, Sains and Technology) Vol 8, No 1 (2025): Juni 2025
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v8i1.11850

Abstract

Kencur hitam (Kaempferia paviflora Wall. Ex Baker) Family Zingiberaceae dari Genus Kaempferia (Kencur-kencuran). Rimpangnya berwarna ungu gelap hingga kehitaman sebagai sumber senyawa bioaktif. Produksi bibit K. parviflora sangat terbatas karena masih secara secara konvensional. Tujuan penelitian untuk mengetahui jenis hormon sitokinin paling baik dalam multiplikasi kencur hitam (Kaempferia parviflora) secara in vitro. Eksplan yang digunakan eksplan in vitro K. parviflora. Media berupa Media Murashige and Skoog (MS) dengan perlakuan P0 (tanpa hormon), P1 (1 mg/l BAP), P2 (2 mg/l BAP), P3 (1 mg/l Kinetin), P4 (2 mg/l Kinetin), P5 (1 mg/l TDZ) , P6 (2 mg/l TDZ) dengan 10 kali ulangan. Parameter yang diamati yaitu persentase eksplan hidup, jumlah tunas, jumlah daun dan panjang tunas.  Hasil penelitian bahwa eksplan hidup 94%, perlakuan P6 (TDZ = 2 mg/L) menghasilkan rata-rata jumlah tunas (4,9 ± 2.6 tunas) dan rata-rata jumlah daun terbanyak,(9,3± 2.2 helai). Hal ini disebabkan oleh tingginya efektivitas TDZ konsentrasi rendah dibandingkan dengan sitokinin lainnya
Comparative Evaluation of Cytokinin-Induced In Vitro Shoot Multiplication in Black Ginger (Kaempferia paviflora Wall. ex Baker) Tambunan, Muhammad Iqbal H.; Tarigan, Lola Zeramenda Br; Saragih, Sisca Sri Dewi; Ritonga, Hayati Sakinah
BEST Journal (Biology Education, Sains and Technology) Vol 8, No 2 (2025): September 2025
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v8i2.11806

Abstract

Kaempferia parviflora Wall. ex Baker (Zingiberaceae), commonly known as black ginger, produces dark purple to black rhizomes rich in bioactive compounds. Conventional propagation of K. parviflora is constrained by limited planting material availability. This study evaluated the effectiveness of various cytokinins for in vitro shoot multiplication of K. parviflora. Nodal explants derived from sterile in vitro stock were cultured on Murashige & Skoog medium supplemented with one of seven treatments: P₀ (no cytokinin), P₁ (1 mg L⁻¹ BAP), P₂ (2 mg L⁻¹ BAP), P₃ (1 mg L⁻¹ kinetin), P₄ (2 mg L⁻¹ kinetin), P₅ (1 mg L⁻¹ TDZ), or P₆ (2 mg L⁻¹ TDZ), with ten replicates per treatment. Parameters recorded after eight weeks included explant survival percentage, shoot number, leaf number, and shoot length. Explant survival averaged 94 % across treatments. Treatment P₆ (2 mg L⁻¹ TDZ) yielded the highest mean shoot number (4.9 ± 2.6 shoots) and leaf number (9.3 ± 2.2 leaves) per explant. The superior performance of low‑concentration TDZ compared to BAP and kinetin shows its high efficacy in promoting cytokinin‑mediated shoot proliferation.
INTEREST IN LEARNING SCIENCE SUBJECTS AMONG STUDENTS AT SMP AN-NAHLU KISARAN Ilma, Zizni; Nasution, Dara Sumaiya; Tambunan, Muhammad Iqbal H; Saragih, Sisca Sri Dewi; Sari, Dewi Sartika
Jurnal Pelita Pendidikan Vol. 13 No. 2 (2025): JURNAL PELITA PENDIDIKAN
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to describe the learning interest of An-Nahlu Kisaran Junior High School students in Natural Sciences (IPA). This study uses a qualitative approach with a descriptive method. The research population consisted of all 144 students in grades VII and VIII (5 classes). Data was obtained through a closed questionnaire that measured aspects of learning interest, including feelings of enjoyment, interest, attention, and student participation in science learning. The results of the study show that the majority of students have a good interest in learning, with an average score of 166.0. The results show that 11% (9 students) are very interested, 38% (31 students) are interested, 30% (25 students) are quite interested, 16% (13 students) are less interested, and only 5% (4 students) are not interested in science subjects. Based on gender, there was no difference between the two. Male and female students had the same level of interest in science subjects. Internal factors, such as motivation, curiosity, and attention, as well as external factors, such as support from family, school, and environment, influenced students' level of interest in learning. From the results of this study, it can be said that the learning environment at SMP An Nahlu has supported the development of students' interest in science subjects.
Co-Authors Ahkrizal, Afdhal Hasibuan, Hokkop Efendi Ilma, Zizni Irawati, Novica Johny, Johny Nasution, Dara Sumaiya Ritonga, Hayati Sakinah Sari, Dewi Sartika Tambunan, Muhammad Iqbal H Tambunan, Muhammad Iqbal H. Tarigan, Lola Zeramenda Tarigan, Lola Zeramenda Br