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All Journal Jurnal Kreatif Tadulako Online Warta Rimba JSTT ABSYARA: Jurnal Pengabdian Pada Masyarakat Bioscientist : Jurnal Ilmiah Biologi Journal of Biology Science and Education
Abd Rauf
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Library & Information Science Mathematics Social Sciences Other

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Pengaruh Ekstrak Bunga Rosella (Hibiscus sabdariffa L.) Terhadap Kadar Asam Urat Pada Tikus Putih (Rattus norvegicus) Yang Diinduksi LDL Fariza, Ifat; Ramadhan, Achmad; Sutrisnawati, Sutrisnawati; Mawaddah, Hayyatun; Rauf, Abd; Trianto, Manap
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.16594

Abstract

This study aims to determine the effect of Rosella flower extract (Hibiscus sabdariffa L.) on uric acid levels in White Rats (Rattus norvegicus) induced by LDL. The research method used is the Laboratory experiment method with a Completely Randomized Design (CRD) pattern. The number of samples used was 21 White Rats consisting of 7 treatment groups and 3 replications. The normal control group (KN) is a group that is only given food and drink, the negative control group (K-) is given LDL induction for 30 days, the positive control group (K+) is given LDL induction for 30 days and allopurinol, and the group given LDL induction for 30 days and Rosella flower extract, namely concentrations of 25% (PI), 50% (PII), 75% (PIII), and 100% (PIV) for 14 days. The data obtained were tabulated and analyzed using one-way ANOVA statistical test using SPSS version-30. The results showed that Rosella flower extract had a significant effect (p <0.05) on reducing uric acid levels. The effective concentration for reducing uric acid levels is a concentration of 50% (PII) compared to concentrations of 75% and 100% because there are chemical compounds that are antagonistic to the active compound, thus reducing the extract's ability to reduce blood uric acid levels. The results of the Rosella flower study can reduce uric acid levels so that it can be used as an alternative natural treatment.
Efektivitas Pemanfaatan Laboratorium Biologi Terhadap Hasil Belajar Siswa di SMA Negeri 1 Tikke Raya Rahmadani; Bialangi, Mursito; Buntu, Amalia; Laenggeng, Abd Hakim; Rauf, Abd; Astija
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.18059

Abstract

This study aims to describe the effectiveness of the use of biology laboratories on student learning outcomes at SMA Negeri 1 Tikke Raya. This type of research uses a quantitative quasi-experimental design using a pretest and posttest control group design. Quantitative data are in the form of measurement results of student learning outcomes. The population in this study were all 145 students of class X of SMA Negeri 1 Tikke Raya. Sampling used a purposive sampling technique, and the sample in this study was 2 classes consisting of class X1 as the Experimental Class and X2 as the control class. Data collection techniques used observation and tests. The results showed that the use of biology laboratories proved to be more effective in improving the learning outcomes of class X students of SMA Negeri 1 Tikke Raya compared to conventional methods. The results of the analysis showed an increase in both groups, but the experimental group obtained significantly higher post-test scores, indicating that the use of laboratories had a positive effect on biology learning outcomes.
Persepsi Remaja Tentang Pendidikan Seksual Pranikah di SMAN 1 Kasimbar Masauda, Cici Magfira Aj.; Bustamin; Rafiqah; Rauf, Abd; Bialangi, Mursito S.; Sabran, Moh.
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.18266

Abstract

This study aims to describe adolescents' perceptions of premarital sex education at SMA Negeri 1 Kasimbar. This research uses a descriptive quantitative research method. The population in this study consisted of 416 students. The sample in this study consisted of 104 students, selected using stratified random sampling from grades X, XI, and XII at SMA Negeri 1 Kasimbar. The research instruments used were observation, interviews, questionnaires, and documentation. The instrument test results were declared valid and reliable. The research results indicate that adolescents' perceptions of premarital sexual education are, overall, in the very good category, with 89 students (85.6%) falling into the very good category, 14 students (13.5%) in the good category, and only 1 student (1.0%) in the sufficient category. The overall average score reached 3.53 on a four-point Likert scale. The aspect of parental role received the highest score with an average of 3.61, followed by attitudes at 3.58, information media at 3.55, school involvement at 3.48, and knowledge at 3.45. Thus, it can be concluded that adolescents are beginning to have a high awareness of the importance of correct and responsible understanding of sexuality. Therefore, sexual education needs to be integrated into Biology lessons at school to strengthen adolescents' knowledge and positive attitudes towards reproductive health.
Co-Authors Abd Hakim Laenggeng, Abd Hakim Achmad Ramadhan Amalia Buntu Ashari, Abd Astija Avita, Cindy Dea Bialangi, Mursito S. Bustamin Bustamin Bustamin Fariza, Ifat Fatmah Dhafir Hasanudin, Rezki Hayyatun Mawaddah Husain Umar I Made Budiarsa I Nengah Kundera Irda Irda Kaltisa, Kaltisa Landewang, Laora Cecilia Lilies Lilies Manap Trianto Masauda, Cici Magfira Aj. Mohammad Jamhari Mursito S. Bialangi Rafiqa Rafiqah Rahmadani Raya Agni Shamdas, Hj. Gamar B.N Sri Maharani Sutrisnawati Mardin Wardah Wardah