Article Per Year (5 Year)
p-Index From 2020 - 2025
0.751
P-Index
This Author published in this journals
All Journal Justek : Jurnal Sains Dan Teknologi Jurnal Farmasi Higea Science Education and Application Journal
Wijayanti, Cicik
Unknown Affiliation
Chemistry Computer Science & IT Control & Systems Engineering Education Energy Mathematics Medicine & Pharmacology

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Improving Project-Based Skills and Science Learning Outcomes of Learners through Project-Based Learning Model in Class VII-D SMP Negeri 1 Bojonegoro Wijayanti, Cicik; Andari, Tri; Baity, Nur
Science Education and Application Journal Vol 5 No 2 (2023): Science Education and Application Journal
Publisher : Program Studi Pendidikan IPA, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v5i2.810

Abstract

This research was designed in accordance with Classroom Action Research (CAR). The purpose of this study was to improve the project-based skills and science learning outcomes of students through the Project-Based Learning (PjBL) model in class VII-D SMP Negeri 1 Bojonegoro in the 2022/2023 academic year, with a total of 32 students. This research was conducted in two cycles, each cycle consisting of four stages, namely planning, implementation, observation, and reflection. In this study, data collection was carried out using observation techniques and giving tests at the end of the implementation. The focus of observation in this class action research is project-based skills and student learning outcomes.The research instruments used to determine the level of success of learners are project-based skills observation instruments and cognitive or knowledge learning outcomes instruments. The indicators of success in this study are if 80% of students classically have project-based skills at least with the predicate B in each aspect of project-based skills assessment and if 80% of students classically get science learning outcomes above the Criteria for Achievement of Learning Objectives (CALO) which is 70. The results showed that there was an increase in the project-based skills of students classically, from cycle I of 2.43 or 60.75% with the predicate C to 3.4 or 86% with the predicate B in cycle II. There was also an increase in the completeness of students' learning outcomes classically, from cycle I of 78.10%, to 93.75% in cycle II. The conclusion of this study is that the application of the PjBL model can classically improve the project-based skills and science learning outcomes of students in class VII-D SMP Negeri 1 Bojonegoro in the 2022/2023 academic year.
AKTIVITAS ANTIBAKTERI KOMBINASI EKSTRAK KULIT PISANG KEPOK (Musa paradisiaca) Dan MINYAK CENGKEH (Syzygium aromaticum) TERHADAP BAKTERI Staphylococcus aureus Maulana, Nabilah Rosdiana; Wijayanti, Cicik; Amanda, Lyrra Mirna; Sari, Yuke Pramudita; Abraham, Ali; Ngibad, Khoirul
Jurnal Farmasi Higea Vol 17, No 1 (2025)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52689/higea.v17i1.689

Abstract

Staphylococcus aureus, bakteri yang terdapat secara alami di tubuh manusia, dapat berubah menjadi berbahaya dalam kondisi tertentu. Perubahan ini dapat menyebabkan berbagai masalah kesehatan, termasuk masalah pada gigi dan mulut, seperti pembentukan karang gigi. Penelitian ini bertujuan untuk menemukan formulasi obat kumur terbaik yang terbuat dari ekstrak kulit pisang kepok dan minyak cengkeh, yang mampu menghambat pertumbuhan bakteri Staphylococcus aureus. Metode ekstraksi yang digunakan adalah maserasi. Terdapat tiga formulasi yang diuji dalam penelitian ini: Formulasi I terdiri dari 1 gram ekstrak kulit pisang kepok dan 5 ml minyak cengkeh, Formulasi II mengandung 2 gram ekstrak dan 7,5 ml minyak cengkeh, serta Formulasi III berisi 3 gram ekstrak dan 10 ml minyak cengkeh. Evaluasi terhadap sediaan obat kumur meliputi uji organoleptis, pH, homogenitas, stabilitas, serta viskositas. Aktivitas antibakteri diuji menggunakan metode difusi cakram dengan kontrol positif menggunakan Listerine dan kontrol negatif menggunakan akuades. Hasil organoleptis menunjukkan bahwa semua formulasi berwarna coklat dan berbentuk cair, dengan rasa manis pada Formulasi I serta rasa sedikit pahit pada Formulasi II dan III. Semua formula memiliki pH stabil 6,5 dan homogenitas yang baik. Zona hambat terbesar terhadap Staphylococcus aureus diperoleh pada Formulasi III dengan ukuran 12,67mm, menjadikannya formulasi terbaik untuk sediaan obat kumur herbal.
Optimization of the Combination Ratio of Biduri and Bidara Leaf Extracts in Reducing Cholesterol in Mice Rifqiyah, Jazilatur; Wijayanti, Cicik; Patricia, Gaby Ayu; Yusmiati, Siti Nur Husnul; Ngibad, Khoirul
Justek : Jurnal Sains dan Teknologi Vol 8, No 4 (2025): December
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v8i4.36437

Abstract

This study aimed to evaluate the effectiveness of a combination of ethanol extracts of Biduri (Calotropis gigantea L.) and Bidara (Ziziphus spina-christi L.) leaves in reducing cholesterol levels in mice induced with hypercholesterolemia, as well as to determine the optimal dose and combination ratio. This experimental laboratory study involved several stages, including extract preparation, preparation of extract suspensions, preparation of simvastatin and propylthiouracil (PTU) suspensions, selection and maintenance of experimental animals, administration of treatments, and measurement of blood cholesterol levels. A total of 72 male mice were divided into 12 treatment groups: negative control, positive control, drug control, and nine groups receiving combinations of extracts with ratios of 1:1, 1:2, and 2:1 at three doses (14, 28, and 56 mg/20 g BW). Hypercholesterolemia was induced using PTU for 14 days, followed by oral administration of the extract combinations for 3 days. Cholesterol levels were measured using a spectrophotometer and analyzed using One Way ANOVA. The results showed that the combination of Biduri and Bidara extracts significantly reduced cholesterol levels (p < 0.05), with the highest reduction observed in the 2:1 ratio at a dose of 56 mg/20 g BW, showing a 59.18% decrease (135.47 mg/dL) compared to the positive control. These findings indicate a synergistic effect between the two extracts and suggest their potential as a natural hypocholesterolemic agent.
Antihypercholesterolemic Activity of the Ethanol Extract Combination of Leaves Calotropis gigantea L. and Adenanthera pavonina L. Oktaviani, Galuh Anggun; Patricia, Gaby Ayu; Wijayanti, Cicik; Ngibad, Khoirul
Justek : Jurnal Sains dan Teknologi Vol 8, No 4 (2025): December
Publisher : Unversitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/justek.v8i4.36441

Abstract

Hypercholesterolemia is a significant risk factor for cardiovascular disease, and its prevalence continues to increase. Pharmacological therapy using statins is effective but may cause side effects when used long-term. Therefore, exploring natural ingredients as an alternative antihypercholesterolemic therapy is essential. This study aimed to evaluate the activity of a combination of ethanol extracts of Calotropis gigantea L. leaves and Adenanthera pavonina L. on the cholesterol levels of male mice induced with propylthiouracil (PTU). The study was conducted experimentally using a post-test-only control-group design with 36 male mice divided into six groups: negative control, positive control, drug control (simvastatin), and three treatment groups receiving extract combinations at doses of 14, 28, and 56 mg/g BW. The research stages included seven days of animal adaptation, induction of hypercholesterolemia with PTU for 14 days, administration of the extract combination at doses of 14, 28, and 56 mg/g BW for four days, and blood sampling for total cholesterol measurement using an automated chemical spectrophotometer. The results showed a significant increase in cholesterol levels in the positive control group, while simvastatin produced the most significant reduction. The extract combination gradually decreased cholesterol levels with increasing dose, with the highest dose approaching the effect of simvastatin. The paired t-test showed a p-value < 0.05, indicating significant differences between treatments. The combination of Calotropis gigantea L. and Adenanthera pavonina L. leaf extracts has potential as a herbal agent to support antihypercholesterolemic therapy.
Co-Authors Ali Abraham, Ali Amanda, Lyrra Mirna Maulana, Nabilah Rosdiana Ngibad, Khoirul Nur baity Oktaviani, Galuh Anggun Patricia, Gaby Ayu Rifqiyah, Jazilatur Sari, Yuke Pramudita Tri Andari Yusmiati, Siti Nur Husnul