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Pengaruh Penerapan Model Pembelajaran Discovery Learning Untuk Meningkatkan Hasil Belajar Fisika Siswa Kelas X Listriorini Lali Pora; Habibi; Baiq Azmi Sukroyanti
Journal Transformation of Mandalika, e-ISSN: 2745-5882, p-ISSN: 2962-2956 Vol. 4 No. 4 (2023): April
Publisher : Institut Penelitian dan Pengembangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jtm.v4i4.1268

Abstract

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa yang di treatment dengan model pembelajaran Discovery Learning. Penelitian menggunakan quasi-eksperimen dengan sampel sebanyak 48 orang siswa kelas X IPA 1 SMAN 1 Batulayar. Data penelitian ini diambil dari hasil tes awal dan tes akhir siswa. Instrumen tes menggunakan soal tes pilihan ganda yang telah di uji validitas, reabilitas, daya pembeda dan indeks kesukarannya. Berdasarkan hasil analisis data diperoleh nilai rata-rata nilai tes awal kelas eksprimen sebesar 44,58 dan kelas kontrol 44,37 dengan kategori sudah homogen dan terdistribusi normal. Hasil tes akhir menunjukan rata-rata nilai kelas eksprimen sebesar 73,54 dan kelas kontrol 64,37. Data nilai tes akhir siswa kelas sampel dianalisis menggunakan uji-t. Berdasarkan hasil analisis data menggunakan uji-t diperoleh thitung sebesar 3,05 dan ttabel sebesar 2,02. Didapatkan thitung lebih besar dari ttabel pada taraf kesalahan 5%. Penelitian ini dapat disimpulkan bahwa pengaruh model Discovery Learning terbukti signifikan dalam meningkatkan hasil belajar siswa.
Secretome-Based Therapy Promotes Epidermal Thickness Recovery and Follicular Regrowth in Fluconazole-Induced Alopecia in Rats Ametati, Holy; Prawitasari, Salindri; Habibi
International Journal of Cell and Biomedical Science Vol 4 No 11 (2025)
Publisher : Stem Cell and Cancer Research (SCCR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59278/cbs.v4i11.72

Abstract

Background: Alopecia involves hair loss characterized by decreased follicle density and epidermal thinning, which may be exacerbated by prolonged fluconazole exposure. The secretome derived from human umbilical cord mesenchymal stem cells (hUC-MSCs) possesses anti-inflammatory and regenerative properties that could aid follicular repair. Methods: Twenty-four male Wistar rats were randomly assigned to four groups: control, 5% minoxidil, hUC-MSC secretome, and secretome–minoxidil combination. Alopecia was induced by fluconazole administration for seven days, followed by a seven-day treatment period. Histological evaluation using hematoxylin and eosin staining assessed hair follicle count and epidermal thickness. Results: The hUC-MSC secretome group exhibited a significant increase in follicle count (mean 39.2; p < 0.001) compared with the control and minoxidil groups. However, changes in epidermal thickness were not statistically significant (p = 0.133). Conclusion: hUC-MSC secretome effectively enhances follicular regeneration in fluconazole-induced alopecia and represents a promising biotherapeutic approach for hair restoration.