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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 437 Documents
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Exposure to Shampoo Made from Bangle Rhizome Extract (Zingiber montanum) to Histopathological Changes in the Kidney of Mice (Mus musculus) Susilowati, Rina Priastini; Santoso, Adit Widodo; Hartono, Budiman
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5554

Abstract

Pyrethroid pesticide poisoning cases in developed and developing countries have a high incidence every year. One of the pyrethroid active substances that is widely used as an ingredient in anti-human lice shampoo (Pediculus humanus capitis) is permethrin 1%. The poisoning effect of permethrin-based shampoo as an anti-lice shampoo has been little studied, and there is a need to find alternative active ingredients from plants as a substitute for 1% permethrin, namely bangle (Zingiber montanum). The purpose of this study was to determine the toxicity of using shampoo made from 1% permethrin and made from bangle rhizome extract with graded doses through changes in kidney histopathology. The type of research was post test only control complete randomized design using 25 male mice, which were randomly divided into 5 groups, namely negative control (baby shampoo), positive control (1% permethrin shampoo), shampoo treatment made from bangle rhizome extract with graded doses (0.5%, 1%, and 2%). The shampoo was applied topically on the head for 14 days. After the mice were sacrificed, the kidneys were processed into tissues by paraffin method and stained with HE. Renal tubular injury was examined using a 400x magnification light microscope. The results showed the average changes in kidney histopathology in mice treated with 1% permethrin shampoo and 2% bangle rhizome extract shampoo, although not significantly different (p>0.05). Histopathological changes in the kidneys of mice that were seen were fatty degeneration which caused swelling of the proximal tubules and necrosis of kidney cells
Development of Online Biology Learning Media on Genetic Substance and Cell Division Material for Third Grade (XII) Methodist High School El Shadday Perbaungan Simanjuntak, Maria Meita; Edi, Syahmi; Manurung, Binari
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5793

Abstract

The objectives of this study were as follows: (1) To develop online learning media products on Genetic Substance and Cell Division through feasibility and validity tests by material and media experts certifying that this biology learning media is suitable for use in the field; and (2) To determine whether or not the utilization of online learning media influences student learning outcomes through more active and comprehensive engagement, as determined by data analysis following the execution of the learning process. The learning outcomes of students are influenced by the level of effectiveness of online learning media pertaining to Genetic Substance and Cell Division, as measured by the Gain Score. The field trial successfully fulfilled the effectiveness criteria; therefore, it can be inferred that the developed online biology learning media pertaining to Genetic Substance and Cell Division has been utilized effectively and has the potential to enhance the academic performance of high school students in this subject matter. The research methodology is in accordance with Borg and Gall 's 4-D model, which comprises the following stages: determination or definition, design, development, and dissemination
Tourism Suitability Index of The Mangrove Area of Pulau Banyak Village, Langkat, North Sumatra: An Ecological Approach Manullang, Helentina Mariance; Lubis, Zulkarnain; Sabrina, Raja
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5642

Abstract

This study aims to obtain data on the suitability of ecotourism areas based on ecological parameters. The parameters observed were mangrove density & thickness, tidal height, mangrove species diversity, and the types of biota that live in it. To calculate mangrove density, the quadratic transect method was used with a size of 10 x 10 m as many as 20 plot pieces. While mangrove thickness is calculated by measuring the outer distance of mangroves towards the mainland. Furthermore, the parameters of biota diversity were carried out by direct observation techniques at the research site. The results of the analysis showed a mangrove thickness of 197.37 metres with a density of 1,520 individuals/ha. There are 10 mangrove species including Sonneratia alba, Avicennia marina, Rhizophora apiculate, R. mucronate, Bruguiera gymnorrhiza, Lumnitzera littorea, Acanthus ilicifolius, Acrostichum speciosum, Pemphis acidula, Nypa fruticans. The average tide height is 1.24 m and 20 species of biota consisting of 3 bivalve species, 1 Gastropoda, 6 fish, 6 birds, 2 shrimps, and 2 crabs. The results of the tourism suitability analysis showed 91% with a very suitable category
Development of Non-Text Book on Flora and Fauna Diversity in the Mangrove Ecotourism Area, Karang Gading Wildlife Reserve, North Sumatra Pehulisa, Rensiva Ray; Sudibyo, Mufti; Silitonga, Melva
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5786

Abstract

This type of research is R & D (Research and Development) which aims to produce a certain product that requires previous trials (Semiawan, 2007) with a 4-D model that has been developed by Thiagarajan. This research developed a Non-Text Book on Flora and Fauna Diversity in Ecotourism Areas, Kab. Langkat Timur, North Sumatra, and researched the Mangrove Ecotourism Development Area, Karang Gading Wildlife Reserve, North Sumatra, using literature.This research was carried out with the aim of: (1) The feasibility of the contents of the non-text book Flora and Fauna Diversity in the North Sumatra Mangrove Ecotourism Development Area according to material expert validation received very feasible criteria with an average percentage of 83.33%; (2) The feasibility of the contents of the book Diversity of Flora and Fauna in the Karang Gading Mangrove Ecotourism Development Area, North Sumatra, according to design expert validation, received very appropriate criteria with an average percentage of 82.70%; (3) The appropriateness of the contents of the non-text book, Flora and Fauna Diversity in the Karang Gading Mangrove Ecotourism Development Area, North Sumatra, according to the validation of language experts, received very appropriate criteria with an average percentage of 83.33%; (4) The utilization of the book "Diversity of Flora and Fauna in the Karang Gading Mangrove Ecotourism Development Area, North Sumatra" in the ecotourism development of the same area can be considered moderately effective, as shown by an N-Gain value of 0.5.
Analysis of Learning Difficulties in Biology Material Through The Implementation of Merdeka Curriculum in First Grade (X Class) Senior High School Students of SMA Negeri 2 Percut Sei Tuan Siregar, Nurul Jannah; Rohani, Rohani
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5847

Abstract

The Ministry of Education, Culture, Research and Technology (Kemendikburistek) issued a policy in the development of the Independent Curriculum which is given to educational units as an additional option in order to restore learning during 2022-2024 and improve the quality of education.Based on observations and interviews conducted at SMA Negeri 2 Percut Sei Tuan, North Sumatra.The implementation of the independent curriculum has not been carried out thoroughly, because there are still several factors or obstacles to student difficulties in the learning process. The method used in this research is a qualitative method with descriptive research.This research was conducted at SMA Negeri 2 Percut Sei Tuan.The population in this study were the biology teachers and all students of First grade an each class totaling 36 students. Based on research conducted by researchers at SMA Negeri 2 Percut Sei Tuan, several student difficulties in learning biology through the implementation of the independent curriculum were found, namely internal factors and external factors
Analysis and Reconstruction of Student Worksheets on the Practicum of Catalase Enzyme, with The Tools and Materials Alternative Siregar, Shopiah Dhuha; Zhafira, Zhafira; Nurahman, Alfyn Abdan; Supriatno, Bambang; Amprasto, Amprasto
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5766

Abstract

Practicum is a process to gain meaningful learning experience through hands-on and hands-on activities. Factors that cause constraints in biology practicum include incomplete tools, unavailable materials, and unavailability of practicum guides. The practicum guides circulating in schools also have various problems. Therefore, it is necessary to reconstruct the practicum guide and the existence of tools and materials that can be an alternative or solution that can overcome problems in the practicum of catalase enzyme. This research uses a qualitative descriptive method with the ANCORB flow (Analysis-Test-Reconstruction-Test). The samples used were five pieces of catalase enzyme practicum guides (LKS) from various sources with sampling techniques in purposive sampling. The analysis showed that the average LKS of catalase enzyme had a fairly good score but still needed LKS reconstruction that could measure the work of catalase enzyme quantitatively accompanied by alternative tools and materials in catalase enzyme practicum. The alternative tools that can be used are tools assembled using a syringe and a three-way stopcock. At the same time, alternative materials that can be used are water with acidic and alkaline pH, lime, lime water and clothes bleach as a substitute for hydrogen peroxide
Improving High School Students' Creative Thinking Skills through Role-Playing Learning Models on Digestive System Material Manalu, Siti Nur Annisa Boang; Ulfa, Syarifah Widya
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5842

Abstract

This research This exploration intends to further develop understudies' innovative reasoning abilities through role-playing learning models on the digestive system material at senior high school of SMAN 2 Sidikalang, Dairi Regency. In order to accomplish this goal, A quasi-experimental with a nonequivalent control group was utilized in a quantitative study design. There were 60 subjects in all; The experimental and control group was using 30 person second grade (XI) MIPA on each part. the hypothesis was tested using t-independent data analysis to see how much influence and there was a difference in the students ability for creative thinking between the class that exclusively used the conventional method of learning and other class. The data for this study used an instrument, namely essay questions in the form of pre-test questions (before being treated) and post-test questions (after being treated), to quantify creative thinking skill. The SPSS v26 factual investigation results showed that The experimental class had an average worth of 80.00, whereas the control class had an average worth of 75.00, the T-test was performed to further demonstrate whether the difference was significant, where the Sig value (2-tailed) was 0.027 <0.05. In descriptive statistics, There were differences in the average level of creative thinking among students in the experimental and control groups. The t-test results showed that there was a significant difference between role-playing and simulation learning in terms of enhancing students' capacity for creative thinking skill
Antibiotic-Resistant Lactic Acid Bacteria Pediococcus acidilactici Isolated from Buffalo’s Milk Fermentation (Dadiah) Bukittinggi, West Sumatera Dewi, Nadia Purnama; Abdullah, Dessy; Pratama, Yudha Endra
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5699

Abstract

The use of antibiotics is still carried out in the health world so that it will cause a big problem, namely antibiotic resistance. The use of antibiotics has also been limited but cannot be stopped. The use of probiotics as therapy in the world of health is increasing every year, so it is necessary to study the combination of antibiotics and probiotics so as not to reduce the effectiveness of probiotics later. This study aims to determine the resistance ability of lactic acid bacteria (LAB) isolates from Buffalos Milk Fermentation (called as dadiah) Bukittinggi against antibiotics. This research uses a descriptive, experimental method where the observations made are related to the total mass of isolates per ml and the clear zone of LAB isolates from dadiah Bukittinggi against antibiotics. In this study, five types of LAB isolates from dadiah Bukittinggi were used, and it was found that the total mass of isolates ranged from 4-194 x108 CFU/ml. In addition to antibiotic resistance, it was known that dadiah LAB isolates resisted Kanamycin and Penicillin by 75%. While on the antibiotic chloramphenicol, ampicillin and tetracyclin, the four isolates are suspect to the antibiotic. The five LAB isolates of dadiah used in the study, DS1 isolate had the best total mass and was resistant to kanamycin and penicillin
Effectiveness of Fish Meal Substitution Using Maggot Meal in Floating Pellets on The Growth and Life Survival of Tilapia Fish (Oreochromis niloticus) Sirait, Florentina Pauli; Afriani, Dwi Tika; Manullang, Helentina Mariance
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5836

Abstract

This research was conducted in February-March 2023, at the Dharmawangsa University Laboratory. The purpose of this study was to determine the effectiveness of fish meal substitution using maggot flour in floating pellets on growth, life expectancy of tilapia and FCR (Food Conversion Ratio). Tilapia is widely cultivated by the community so that it has economic value with high market demand. The high price of feed causes many farmers to suffer losses. To overcome the problem of losses, cultivators use maggot as a substitute for fish meal to be used as a local raw material which has the advantage of being relatively cheap, high protein and increasing the digestibility of fish. The research method used experimental methods with the treatment of artificial feeding with fish meal protein sources and maggot flour protein sources and analyzed using the T test. The results of absolute growth research on fish meal pellets were 3.5 and maggot flour pellets 3.6. This shows that maggot flour can be used as a local raw material in the manufacture of fish feed. The results of the survival rate of tilapia by giving fish meal pellets were 60% and giving maggot flour pellets was 55%. Fish meal pellets and giving maggot flour pellets show that they can support the basic needs of fish and can support fish life. The results of the study showed that the FCR value for fish meal pellets was 1.36 and for maggot flour pellets was 1.36.
Mangrove Ecosystem Condition at Three Regency on The East Coast of North Sumatra: A Review Siswoyo, Bambang Hendra; Mardiana, Siti; Sabrina, Raja
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i2.5679

Abstract

This study aims to analyze the condition of mangrove ecosystems in the three districts on the east coast of North Sumatra. Data collection was carried out from June to December 2023 in the Deli Serdang, Serdang Bedagai, and Langkat districts. The sampling location was determined by purposive sampling, and the target location was a mangrove area that had aquaculture activities. There were 9 sampling points, 3 points each in each district. Observations were made using a 10 x 10 m quadratic transect method with 20 replications. Density, relative density, frequency, relative frequency, dominance, and relative dominance were calculated to obtain the importance index value of each species. The calculation results showed that Rhizopohora apiculata with a density of 2359-4208 ind/ha with a relative density between 43.7-48.8%. The highest frequency and relative frequency values are also in R. apiculata, and R. mucronata species between 0.67 - 1 with a relative frequency between 25 - 44.4%. The highest species dominance and relative dominance of R.apiculata was 0.000010272 - 0.00001105, with a relative dominance of 23.07 - 40.25%. Therefore, these two species are the species with the highest importance index >65%.

Page 29 of 44 | Total Record : 437

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