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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 : 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
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.
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.
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.
Development of Student Worksheets Based on Science Process Skills on Human Excretion System Materials Lisa, Erma; Suryani, Ira; Tambunan, Efrida Pima Sari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.4285

Abstract

Development of Student Worksheets (LKPD) based on science process skills on human excretory system material presented in the form of an application on a smartphone which contains human excretion system material, stages of practicum activities and questions adapted to indicators of science process skills, which are expected to be able to train participants' thinking abilities educate. The research aims to find out: (1) the feasibility of developing science process skills-based LKPD (Student Worksheets): (2) the practicality of developing process skills-based LKPD (Student Worksheets); and (3) The effectiveness of developing LKPD (Student Worksheets) based on science process skills on human excretory system material. The development model in this study is 4D which consists of 4 stages, namely define, design, development, and disseminate the research subject of 30 students of class XI IPA MAS 12 Perbaungan. The research instruments are validation sheets for material experts, linguists, and media experts on feasibility testing, practitioner validation sheets to determine practicality, pretest and posttest sheets for effectiveness testing. The results of this study prove that the skill-based LKPD science process developed is declared very feasible with a percentage of 89.39%, very practical with a percentage of 81.94% and very effective with a high category of learning improvement that has been tested with n-gain with a score of 0.73 and excellent student response with a percentage of 81.58%. The results of this study prove that the developed science process skills-based learner worksheets are very feasible, very practical, and very effective to use in the learning process
Pengaruh Media Tambahan Susu Bubuk Afkir terhadap Bobot Badan dan Kandungan Nutrisi Maggot (Hermetia illucens) Lingga, Atika; Febriani, Husnarika; Tambunan, Efrida Pima Sari
Spizaetus: Jurnal Biologi dan Pendidikan Biologi Vol 5 No 2 (2024): Spizaetus: Jurnal Biologi dan Pendidikan Biologi
Publisher : Program Studi Pendidikan Biologi, FKIP, Universitas Nusa Nipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55241/spibio.v5i2.418

Abstract

Susu bubuk afkir merupakan susu yang sudah tidak dipakai dan memenuhi syarat sebagai pakan tambahan pada ternak karena memiliki komposisi gizi yang memadai. Penelitian ini bertujuan untuk mengetahui pengaruh media tambahan susu bubuk afkir terhadap bobot badan dan kandungan nutrisi berupa protein dan lemak pada maggot (Hermetia illucens). Penelitian ini menggunakan rancangan acak lengkap dengan 20 gram larva maggot dibagi menjadi 4 kelompok perlakuan. P0= 100% limbah buah. P1= 75% limbah buah dan 25% susu bubuk afkir. P2= 50% limbah buah dan 50% susu bubuk afkir. P3= 25% limbah buah dan 75% susu bubuk afkir. Parameter yang diukur penimbangan bobot dan kandungan protein serta lemak maggot (Hermetia illucens). Analisis data menggunakan oneway ANOVA dan dilanjutkan dengan uji Duncan. Hasil yang diperoleh dalam pemberian media tambahan susu bubuk afkir berpengaruh terhadap bobot badan maggot (Hermetia illucens) dengan nilai p=0,000. Hasil yang didapatkan dalam pemberian media tambahan susu bubuk afkir berpengaruh terhadap kandungan protein dan kandungan lemak maggot (Hermetia illucens) dengan nilai p=0,000. Media yang paling optimal dalam pertumbuhan bobot badan dan kandungan nutrisi berupa protein dan lemak maggot adalah pada kelompok P2 dengan bobot sebesar (137,60±2,88b), kandungan protein sebesar (37,5640±0,58d) dan kandungan lemak sebesar (63,7020±0,21d). Penelitian ini memiliki implikasi bagi perkembangan ilmu pengetahuan dalam Pemberian media tambahan susu bubuk afkir berpengaruh nyata meningkatkan pertumbuhan bobot badan maggot (Hermetia illucens). 
Pengaruh Pemberian Ekstrak Daun Benalu Kopi (Scrulla feruginea (Jack) Danser) terhadap Kadar Ureum dan Kreatinin pada Tikus Putih Jantan (Rattus norvegicus L.) yang Diinduksi Aloksan Ariani, Liza; Febriani, Husnarika; Tambunan, Efrida Pima Sari
Spizaetus: Jurnal Biologi dan Pendidikan Biologi Vol 5 No 3 (2024): Spizaetus: Jurnal Biologi dan Pendidikan Biologi
Publisher : Program Studi Pendidikan Biologi, FKIP, Universitas Nusa Nipa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55241/spibio.v5i3.430

Abstract

Diabetes melitus merupakan suatu penyakit yang disebabkan karena pankreas tidak cukup dalam memproduksi insulin atau tubuh tidak bisa memanfaatkan insulin secara efektif. Diabetes melitus dapat diobati dengan menggunakan daun benalu kopi karena mengandung senyawa metabolit sekunder seperti flavonoid, alkaloid, tanin, steroid dan saponin. Tujuan penelitian ini untuk mengetahui pengaruh pemberian ekstrak etanol daun benalu kopi (Scrulla feruginea (Jack) Danser) terhadap kadar ureum dan kreatinin pada tikus putih jantan (Rattus norvegicus L.) yang diinduksi aloksan dan dosis ekstrak etanol daun benalu kopi (Scrulla feruginea (Jack) Danser) yang efektif menurunkan kadar ureum dan kreatinin pada tikus putih jantan (Rattus norvegicus L.) yang diinduksi aloksan. Rancangan penelitian menggunakan metode Rancangan Acak Lengkap (RAL) dengan pembagian 6 kelompok yaitu: kontrol normal, kontrol negatif, kontrol positif, P1: 200 mg/kg BB, P2: 300 mg/kg BB, P3: 400 mg/kg BB, dengan masing-masing 4 ulangan. Pengujian kandungan senyawa kimia pada daun benalu kopi dilakukan dengan skrining fitokimia, uji flavonoid total dan antioksidan. Analisis data menggunakan oneway ANOVA dan dilanjutkan dengan uji Duncan. Hasil yang didapatkan di antaranya ekstrak etanol daun benalu kopi (Scrulla ferruginea (Jack) Danser) berpengaruh nyata dalam menurunkan kadar ureum dan kreatinin pada tikus putih jantan (Rattus norvegicus L.) yang diinduksi aloksan dengan mendapatkan nilai p=0.000. Dosis ekstrak etanol daun benalu kopi (Scrulla feruginea (Jack) Danser) yang aman dan efektif untuk menurunkan kadar ureum dan kreatinin pada tikus yang diabetes adalah dosis 300 mg/kg BB. Penelitian ini memiliki implikasi bagi perkembangan ilmu pengetahuan dalam pemberian ekstrak daun benalu kopi (Scrulla feruginea (Jack) Danser) terhadap kadar ureum dan kreatinin pada tikus putih jantan (Rattus Norvegicus L.) yang diinduksi aloksan.