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Tambunan, Efrida Pima Sari
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The Effect Of Self-Efficacy And Self-Regulated Learning On Student's Creativity In Biology Practicum Putri, Sheilla; Tambunan, Efrida Pima Sari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.5065

Abstract

The aim of this research is to determine whether self-efficacy and self-regulated learning can influence creativity either partially or separately or simultaneously. The population used during the research was classes XI and XII MIPA by taking a sample of 35% of the total population. The research method uses a quantitative method, the Ex Post Fact model. Data analysis techniques were carried out using SPSS with the Classical Assumption Test stages such as Normality Test and Multicollinearity Test. Followed by Hypothesis testing such as Partial Test (T-Test), Simultaneous Test (F-Test), along with the Determination Coefficient R2. Then the hypothesis test is determined using the Ho criterion; There is no influence of self-efficacy or self-regulated learning on creativity. Ha; There is an influence of self-efficacy and self-regulated learning on creativity. The final conclusion of this research is that the results of simultaneous testing with an f-count value of 22.785 are greater than the f-table with a 5% significance level of 3.16 (22.785>3.26) and from these results it can be explained that self-efficacy and self-regulated learning influences student creativity
The Effect of Pineapple (Ananas comosus L.) Fruit Extract On The Liver White Rats (Rattus norvegicus) Induced By Soft Drinks Alfitri, Nur Mawaddha; Tambunan, Efrida Pima Sari; Syukriah, Syukriah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i3.6133

Abstract

Sparkling-soft drinks are calorie-carbonated drinks that contain a mixture of water, flavorings, and sweeteners. Sparkling drinks contain a lot of artificial sugars which can burden the liver's work to filter toxins. Consuming too many soft drinks can lead to fat buildup that is harmful to the liver. Pineapple (Ananas comosus L.) is a plant rich in calcium, phosphorus, sodium and bromelin enzymes. Pineapple (Ananas comosus L.) also contains vitamin C which functions to stimulate the production of liver enzymes and absorb toxins in the blood circulation that are excreted through the urine. In conditions of impaired liver function, it can be indicated by changes in the levels of Serum Glutamic Oxaloacetic Transminase (SGOT) and Serum Glutamic Pyruvic Transminase (SGPT). The research procedures include plant determination, making pineapple fruit extract, phytochemical screening tests, animal preparation, blood collection and surgery on animals, measuring SGPT and SBOT levels, and data analysis. The purpose of this study was to determine the effect of administration of pineapple fruit extract (Ananas comosus L.) on morphology, SGPT and SGOT levels in the liver of male white rats induced by soft drinks. The study used a complete randomized design method (RAL) with 25 male white rats from 5 groups and 5 replicates, conducted for 30 days, and 7 days of acclimatization. The results of administration of pineapple fruit extract had no significant effect on liver morphology and the dose of 400 mg/kg BB was a good enough dose in reducing SGPT and SGOT levels
Pengaruh Pemberian Ekstrak Etanol Daun Sambiloto Andrographis paniculata (Burm. fil) Ness Terhadap Histologi dan Faal Ginjal Tikus Putih (Rattus novergicus L.) yang Diinduksi Timbal Asetat (Pb(C2H3O2)2) Cutami, Ledia Fristia; Tambunan, Efrida Pima Sari; Febriani, Husnarika
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol 7 No 2 (2024): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/bioedusains.v7i2.12567

Abstract

This study aims to examine the impact of ethanol extract from bitter leaf (Andrographis paniculata) on the morphology, histology, and physiology of the kidneys of white rats (Rattus novergicus) induced by lead acetate. The method used was a completely randomized experimental design, consisting of five treatment groups with five repetitions. The control group was only given food and drink, while the experimental group received lead acetate for 28 days at a dose of 40 mg, followed by administration of bitter extract at varying doses (250, 500, and 750 mg/kg body weight) for 14 days. The results showed that administration of lead acetate caused histological damage to the kidneys, such as necrosis, tubular degeneration, and tubular dilatation, and increased blood urea and creatinine levels, which are indicators of kidney function. These findings indicate that an ethanol extract of bitter leaf at a dose of 750 mg/kg body weight can mitigate this histological damage and has the potential to reduce urea and creatinine levels. Thus, bitter leaf extract shows potential as a kidney protective agent against damage induced by lead acetate. Keywords: Kidney, Creatinine, Lead Acetate, Ureum
DNA BARCODING OF HARIMONTING (RHODOMYRTUS TOMENTOSA) USING THE TRNL-F GENE Khaira MS, Nazlil; Tambunan, Efrida Pima Sari; Idami, Zahratul
BEST Journal (Biology Education, Sains and Technology) Vol 7, No 1 (2024): Juni 2024
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v7i1.8440

Abstract

DNA Barcoding is one or more short gene sequences taken from a standard part of the genome and used to identify species. Harimonting plant is a wild plant, but in some places this plant is used as an ornamental plant. This study aims to determine the molecular characteristics of the trnL-F gene in Rhodomyrtus tomentosa, to determine the genetic diversity of Rhodomyrtus tomentosa using the trnL-F gene, and to examine the phylogenetic relationships of Rhodomyrtus tomentosa using the trnL-F gene. This research method was carried out in stages: sample collection, DNA isolation, PCR (Polymerase Chain Reaction), electrophoresis, sequencing and analysis of sequence results. Morphological characterization of Rhodomyrtus tomentosa plants collected from Tara Bunga Hill was seen from the results of DNA barcodes and observations of visible morphological characters and literature studies. The results of the Rhodomyrtus tomentosa DNA barcode from the results of molecular analysis of Rhodomyrtus tomentosa obtained the results of a sequence of 359 bp. The plant sequences of Rhodomyrtus tomentosa were analyzed using the MEGA 11 application. Genetic distance calculation (pairwise distance), GC content calculation, and nucleotide diversity were performed. Calculation of GC content showed that the value of GC content in Rhodomyrtus tomentosa was lower than AT content which indicated that Rhodomyrtus tomentosa species were more primitive. Based on the phylogenetic tree reconstruction, all species are divided into 2 clades.
Efek Pemberian Ekstrak Daun Salam (Syzygium polyanthum L.) terhadap Parameter Darah Tikus Putih (Rattus norvegicus L.) yang Terpapar Kadmium Klorida (CdCl₂) Ahyadiyani, R.; Tambunan, Efrida Pima Sari; Hutasuhut, Melfa Aisyah
Journal of Natural Sciences Vol 6, No 1 (2025): Journal of Natural Sciences Maret
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jonas.v6i1.811

Abstract

Cadmium is a non-essential, carcinogenic metal commonly found in the environment. It can enter the human body through food consumption and has the potential to disrupt physiological systems, including the hematopoietic system. Bay leaves (Syzygium polyanthum) contain various bioactive compounds such as flavonoids, tannins, saponins, alkaloids, and antioxidants, which play a role in neutralizing free radicals. This study aims to analyze the effect of ethanol extract of bay leaves on erythrocyte, leukocyte, platelet counts, hemoglobin levels, and hematocrit in white rats (Rattus norvegicus L.) exposed to cadmium chloride (CdCl₂). The study employed a completely randomized design (CRD) with 20 rats divided into five treatment groups: a negative control, a positive control (CdCl₂ 40 mg/kgBW), and three treatment groups receiving bay leaf extract at doses of 200, 300, and 400 mg/kgBW. The research procedures included phytochemical screening, antioxidant activity testing, and blood profile analysis. The obtained data were analyzed using one-way ANOVA, followed by Duncan's post hoc test if significant differences were found. The results showed that administration of ethanol extract of bay leaves was able to restore blood parameters in rats to normal levels, with an optimal dose of 400 mg/kgBW.
Augmented Reality Media Development for Human Digestive Material to Afford The Learn Motivation of High School Student on SMA Kartika I-2 Medan Abdilla, Khairunna; Tambunan, Efrida Pima Sari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6885

Abstract

Based on interviews was conducted at Kartika I-2 Medan High School the biology teacher at Kartika I-2 Medan High School confirmed that there are currently no technology-based learning resources available to help biology students learn about the human digestive system, Furthermore, known that acquisition of the average of the mid-semester term score was 53.35. So that certain students experience boredom when learning, unfocused and less active in the learning process, it is also found that students lack understanding of several biology learning materials, one of which is the digestive system. This research was carried out on Kartika I-2 Medan High School which consists of 3 science class. The respondent of product test consists of 70 students in science class of second grade (XI-MIPA Class). The research instrument is a validity instrument, namely media/material expert validation. This learning media was developed through 4-D stages (Definition, Design, Development, Dissemination). Results showed that the application of augmented reality media to evaluate student motivation at Kartika I-2 Medan High School especially on the human digestive system. Media experts' validation results were 100% with very feasible criteria, while material experts' results revealed 93.5% with extremely viable criteria.  Thus, the learning process could take advantage of this augmented reality content.
Perbandingan Model Pembelajaran Contextual Teaching and Learning (CTL) dan Model Pembelajaran Numbered Heads Together (NHT) terhadap Hasil Belajar pada Materi Sistem Pernapasan di Kelas XI SMA Negeri 2 Kota Pinang Nasution, Nur Ainun; Febriani, Husnarika; Tambunan, Efrida Pima Sari
Mimbar Kampus: Jurnal Pendidikan dan Agama Islam Vol. 23 No. 1 (2024): Mimbar Kampus: Jurnal Pendidikan dan Agama Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/mk.v23i1.1868

Abstract

This research aims to determine the comparison of the Contextual Teaching and Learning (CTL) learning model with the Numbered Heads Together (NHT) learning model on learning outcomes in respiratory system material in class XI SMA Negeri 2 Kota Pinang. This research is quantitative research with a quasi-experimental type of research. With a population of all class Using samples XI IPA-1 as experimental class I and XI IPA-2 as experimental class II. The instrument in this research uses a multiple choice form of learning outcomes test. The data analysis technique uses the t test at the significance level α = 0.05. The results of posttest data hypothesis testing showed that the average score for Experimental Learning Model I (Contextual Teaching and Learning (CTL)) = 83.3 and Experiment II (Numbered Heads Together (NHT)) = 76.7. Hypothesis testing comparing the respiratory system learning outcomes of students in Experiment I and Experiment II, obtained tcount (2.47) > ttable 2.048, then Ho is rejected and Ha is accepted.
THE EFFECT OF THE PROBLEM BASED LEARNING (PBL) MODEL ASSISTED BY FLIPBOOK MEDIA ON THE CRITICAL THINKING SKILLS OF STUDENTS IN PRIVATE HIGH SCHOOL PAB 8 SAENTIS CLASS XI ON THE MATERIAL OF THE HUMAN DIGESTIVE SYSTEM: PENGARUH MODEL PROBLEM BASED LEARNING (PBL) BERBANTU MEDIA FLIPBOOK TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA DI SMA SWASTA PAB 8 SAENTIS KELAS XI PADA MATERI SISTEM PENCERNAAN MANUSIA Ramadhina, Azzahra; Tambunan, Efrida Pima Sari
SOSIOEDUKASI Vol 14 No 3 (2025): SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan Universaitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/sosioedukasi.v14i3.5983

Abstract

This study aims to determine the effect of the Problem Based Learning (PBL) model assisted by flipbook media on students’ critical thinking skills in the topic of the human digestive system at SMA Swasta PAB 8 Saentis. This research employed a quantitative approach with a experimental design in the form of a pretest-posttest control group design. The research sample consisted of two classes: the experimental class, which received learning using the PBL model assisted by flipbook media, and the control class, which received conventional instruction. Data were collected through essay tests (pretest and posttest), observations, interviews, and questionnaires. The data were analyzed using normality, homogeneity, and t-tests with the help of SPSS version 25.0. The results showed a significant difference in the improvement of critical thinking skills between the experimental and control classes. The average posttest score in the experimental class was 78.67, higher than the control class which scored 62.50. The t-test results showed a significance value of 0.000 (p < 0.05), indicating that the PBL model assisted by flipbook media had a significant effect on students’ critical thinking skills. Therefore, it can be concluded that the Problem Based Learning model supported by flipbook media is effective in enhancing students’ critical thinking abilities in biology learning.
Pengembangan Digital Flipbook Terintegrasi Mind Map (DFM) Untuk meningkatkan Pemahaman Konsep Siswa Kelas XI pada Materi Sistem Pencernaan di SMA Fauzianti, Windi; Tambunan, Efrida Pima Sari
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.v13i3.16559

Abstract

This study aims to develop digital learning media in the form of flipbooks integrated with mind mapping to improve the understanding of concepts of grade XI students in the digestive system material at SMA Negeri 2 Percut Sei Tuan. This study uses the Research and Development (R&D) method with a 4D development model that includes the Define, Design, Develop, and Disseminate stages. At the development stage, the media was validated by material and media experts who showed results of 97.77% with the criteria of "very feasible" and 98% with the criteria of "very practical", then continued with the dissemination stage through implementation media to students. The subjects of the study consisted of biology teachers and grade XI students, with a large group sample of grade XIb and a small group of 10 students randomly. Data collection was carried out through interviews and questionnaires, while the validity of the media was measured through expert validation tests. The results of the study indicate that the digital flipbook learning media integrated with mind maps (DFM) is considered feasible and effective to use, able to improve students' understanding of complex digestive system material seen from the results of the N-Gain percentage of 0.78 indicating a "high" criterion, and significantly increase motivation and learning outcomes. This media is also considered interesting and interactive, so it can overcome students' difficulties in understanding biological concepts through structured and easy-to-understand visual presentations, and provide innovative solutions in biology learning in schools.
The Effect of Additional Tomato Extract in Diluting Sodium Citrate and Egg Yellow in Kampung Chicken on The Quality of Semen Cow Limousine Situmorang, Dian Fatihani; Syukriah, Syukriah; Tambunan, Efrida Pima Sari
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6371

Abstract

Undiluted sperm will reduce fertility, therefore dilution is performed to maintain the quality of spermatozoa during storage. Tomatoes contain carbohydrates, vitamin A, vitamin C, protein, and lycopene as antioxidants. Carbohydrates and antioxidants act as a source of energy to potentially prevent free radicals that can damage cells. This study aims to determine the effect of adding tomato juice in sodium citrate diluent and free-range chicken egg yolks to the semen quality of limousin cattle. This study used a completely randomized design (CRD) with 4 treatments and 5 replications. The treatment consisted of a solution of sodium citrate and egg yolk (P0), sodium citrate and egg yolk + 10% tomato extract (P1), sodium citrate and egg yolk + 20% tomato extract (P2), and egg yolk sodium citrate + 30% tomato extract. % (P3). Parameters observed were motility, viability and abnormalities of semen spermatozoa of Limousin cattle. Observations were made at 0, 24, 48, and 72 hours after cooling. The results showed that the addition of 10% tomato extract (P1) had a significant effect on the highest percentage of motility, namely 42.00 ± 2.73c for the 48th hour, the highest viability 62.10 ± 4.51c for the 72nd hour, and lowest abnormality 16.60 ± 1.81a until the 72nd hour. The addition of 10% tomato extract (P1) in sodium citrate diluent and egg yolk resulted in the best motility, viability, and abnormality percentage of Limousin cattle spermatozoa.
Co-Authors Abdilla, Khairunna Ahyadiyani, R. Alfitri, Nur Mawaddha Apriani, Hajijah Ardiza, Syafira Cutami, Ledia Fristia Fauziansyah, Hidayat Fauzianti, Windi Gita Anggraini, Gita Hasibuan, Turlan Rumaito Husnarika Febriani, Husnarika Hutasuhut, Melfa Aisyah Jumiati, Ety Khaira MS, Nazlil Mashitah, Ulfa Muhammad Reza Nasution, Nur Ainun Putri, Sheilla Ramadhina, Azzahra Ritonga, Irfan Sahputra, Bagus Salsabila, Isra Risky Selvia*, Selvia Sirait, Isnawati Situmorang, Dian Fatihani Suryani, Ira Syahreza, Daffa Rizki Syukriah Syukriah, Syukriah Wahyuni, Selvi Sinta Wibowo, Ibnu Sena Zahratul Idami