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All Journal QISTINA: Jurnal Multidisiplin Indonesia Journal of Pharmacy Science and Technology
Rahmadani, Widya
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Religion Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing

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The Influence of the Three Step Interview Learning Model on Learning Outcomes in Pancasila and Citizenship Education Rahmadani, Widya; Gimin, Gimin; Haryono, Haryono
QISTINA: Jurnal Multidisiplin Indonesia Vol 2, No 2 (2023): December 2023
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/qistina.v2i2.1345

Abstract

This research aims to determine the effect of the three step interview learning model on the Civics learning outcomes of SMAN 3 Pekanbaru students. This research uses an experimental method with a Pretest-Posttest Control Group design. The population in this study was 341 people with the number of samples taken using a purposive sampling technique, namely 70 people consisting of MIPA 2 and MIPA 3 students at SMAN 3 Pekanbaru. The data collection technique uses pre-test and post-test results in the form of multiple choice questions. The results of this research show differences in learning outcomes from the two classes with the average scores obtained in the experimental class and control class, namely 82.63 and 75.51. Based on the results of calculating the hypothesis test with SPSS using the t test, it is obtained that tcount ttable with df=68 and a sign level of 5%=0.05, namely 4,846 1.995, it can be said that Ho is rejected and Ha is accepted, in other words there is a significant influence from the use of the learning model. three step interview on PPKn learning outcomes of SMAN 3 Pekanbaru students.
itu OPTIMASI SEDIAAN NANOEMULGEL KOMBINASI TITANIUM DIOXIDE, ZINK OXIDE DAN NIACINAMIDE SEBAGAI SUN PROTECTION FACTOR PADA FORMULASI SUNSCREEN: Hasil Data Titanium Dioksida, Zink Oksida dan Niacinamide Rahmadani, Widya
JOURNAL OF PHARMACY SCIENCE AND TECHNOLOGY Volume 5 No. 1: Juli 2024
Publisher : Prodi Farmasi Fakultas Kedokteran Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/pst.v5i1.305

Abstract

Excessive exposure to ultraviolet (UV) radiation can lead to various skin disorders, including premature aging, hyperpigmentation, and skin cancer, making the use of sunscreen an essential step in skin protection. Titanium dioxide and zinc oxide are physical sunscreen agents that work by reflecting and absorbing UV rays, while niacinamide serves as an antioxidant, anti-inflammatory agent, and skin barrier enhancer. The combination of these three ingredients in a nanoemulgel formulation has the potential to enhance UV protection efficacy while improving formulation characteristics. The optimization of nanoemulgel focuses on improving physical stability, SPF efficacy, and user comfort, which are influenced by particle size, surfactant selection, and homogenization methods. Nano-sized particles (<200 nm) of titanium dioxide and zinc oxide allow for more uniform skin coverage and reduce the white cast effect, while the nanoemulgel delivery system increases the bioavailability of active ingredients and prolongs UV protection duration. Studies have shown that combining titanium dioxide, zinc oxide, and niacinamide in a nanoemulgel significantly increases SPF compared to conventional formulations while providing additional benefits such as anti-inflammatory effects and improved formulation stability. The appropriate selection of oil and surfactant components also determines the viscosity, physical stability, and spreadability of the formulation. Therefore, nanoemulgel-based formulations represent an innovative approach to developing sunscreens that are more effective, stable, and user-friendly. Further studies through in vivo and clinical testing are necessary to ensure long-term safety and efficacy.
Co-Authors Gimin Gimin Haryono Haryono