Claim Missing Document
Check
Articles

Found 13 Documents
Search

Pengaruh Emulgator Terhadap Stabilitas dan Aktivitas Tabir Surya Krim Ekstrak Mahkota Dewa dan Kencur Jalil, Nur Khairi; Maulita Indrisari; Ikbal; Nurul Hikma
Jurnal Tumbuhan Obat Indonesia Vol. 18 No. 1 (2025): July 2025
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jtoi.v18i1.2633

Abstract

Paparan sinar ultraviolet (UV) yang berlebihan berpotensi menimbulkan kerusakan jaringan kulit, mempercepat penuaan, hingga meningkatkan risiko kanker kulit. Upaya pencegahan dilakukan melalui penggunaan tabir surya untuk membatasi penetrasi UV ke kulit. Dua sumber bahan aktif alami yang prospektif digunakan yaitu buah mahkota dewa dan rimpang kencur, buah mahkota dewa mengandung senyawa glukosida benzofenon yaitu phalerin dan rimpang kencur mengandung etil-parametoksisinamat yang merupakan senyawa turunan sinamat. Tujuan penelitian untuk menemukan konsentrasi emulgator yang optimal yang dapat meningkatkan stabilitas produk serta memperbaiki kinerja perlindungan terhadap sinar UV. Ekstrak diperoleh melalui proses maserasi menggunakan etanol96%, selanjutnya diformulasi dalam bentuk sediaan krim sebanyak 9 formula dengan variasi konsentrasi berbagai emulgator yaitu novemer, viscolam dan  tween 80-span 80 lalu dilakukan pengujian efektivitas tabir surya dari krim ekstrak dengan menghitung nilai %Te, %Tp, dan SPF. Hasil penelitian menunjukkan emulgator viscolam dengan konsentrasi 4% (formula VI) merupakan formula krim yang paling stabil berdasarkan parameter organoleptis, homogenitas, pH, tipe emulsi, viskositas, daya sebar serta daya lekat dan hasil pengujian tabir surya  dikategorikan sebagai proteksi ekstra dengan nilai %Te 3,83854 dan sunblock dengan nilai %Tp 2,703703 sedangkan nilai SPF 74,4323 yang memberikan efek proteksi ultra. Kata kunci: Ekstrak, Mahkota Dewa, Kencur, Emulgator, Tabir surya.
Pengaruh Penerapan Model Pembelajaran Discovery Learning Berbasis Multimedia Video Animaker Terhadap Hasil Belajar Siswa Di SD Negeri 6 Tambun Hartati H. Tanaiyo; Rudini, Moh; Ummah BK, Muh Khaerul; Ikbal
Tolis Ilmiah : Jurnal Penelitian Vol 7 No 2 (2025): November (In Proggress)
Publisher : LPPM Universitas Madako Tolitoli

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56630/tolis.v7i2.1098

Abstract

The problem in this study is the low learning outcomes of students of SD Negeri 6 Tambun in Indonesian subjects, especially in the reading aspect, the less interesting learning model is the main trigger for this. In tackling this, the author conducted a study by applying a multimedia video animaker-based discovery learning model in learning activities. The purpose of this study was to analyze whether there was an effect of the application of the multimedia video Animaker-based Discovery Learning learning model on the Indonesian language learning outcomes of fourth-grade students at SD Negeri 6 Tambun. This study is a quantitative study with a Pre-Experimental design (Pretest-Postest Interaction Group Comparison). The instruments in this study were observation and learning outcome tests with a sample of 22 students, which used a purposive sampling technique in sampling. The data analysis technique used the Wilcoxon Signed Ranks test. The results showed that the probability value was 0.003 which means <0.05, so it can be concluded that H0 is rejected and Ha is accepted. The positive implications of the results of implementing this model with integrated media, teachers can consider integrating technology and multimedia in their teaching strategies to increase student engagement and understanding. Keywords: Animaker, Discovery Learning, Learning Outcomes
Ratio Legis Pembentukan Daerah Otonom Baru Provinsi Pulau Sumbawa di Nusa Tenggara Barat Ikbal; Firmanto, Taufik; Ma'arij, Amar
Jurnal Hukum Lex Generalis Vol 6 No 8 (2025): Tema Hukum Pemerintahan
Publisher : CV Rewang Rencang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56370/jhlg.v6i8.1656

Abstract

The establishment of Sumbawa Island Province as a new autonomous region (DOB) in West Nusa Tenggara reflects the spirit of decentralization and the aspirations of the community to achieve equitable development and efficient governance. This research uses a normative-juridical approach by examining relevant regulations, literature, and policy documents. The study shows that philosophically, the idea of ​​DOB is based on the principle of distributive justice, legally grounded in the 1945 Constitution and Law No. 23 of 2014, and sociologically supported by the demands of the Sumbawa Island community. However, administrative, economic, and human resource challenges demand a clear and sustainable development roadmap.