cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Rivo Hasper Dimenta
Contact Email
rivohasperdimenta@ulb.ac.id
Phone
+6281362238917
Journal Mail Official
nukleus@ulb.ac.id
Editorial Address
Jalan Sisingamangaraja No.126 A KM 3.5 Aek Tapa, Bakaran Batu, Rantau Selatan, Kabupaten Labuhan Batu, Sumatera Utara 21418
Location
Kab. labuhanbatu,
Sumatera utara
INDONESIA
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
 34   35   36   37   38 
Periphyton Community Structure on Natural and Artificial Substrates in the Namu Sira-Sira River, Langkat Regency, North Sumatra Azzahra, Fathia; Hutasuhut, Melfa Aisyah; Idami, Zahratul
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.v11i1.6862

Abstract

Periphyton is one of the biotic components, living attached to various substrates has an important role in providing primary productivity of waters. The purpose of this study was to determine the identification of species, the structure of the periphyton community in natural and artificial substrates, the water quality of the Namu Sira-sira River in Langkat Regency. The data collection method was carried out using the "Purposive Random Sampling" method at three stations according to community activities in the research area.The results of the study obtained species found in natural substrates were 25 species and artificial substrates were 27 species. The community structure including the diversity index (H ') is included in the medium category with a value of 2.48 on natural substrates and artificial substrates with a value of 2.50. The uniformity index value (E) on natural substrates is 0.89 and artificial substrates are 0.90 categorized as high because the distribution of species in each station is even. Periphyton communities on natural substrates have advantages in terms of abundance and diversity compared to artificial substrates due to the complex interactions between environmental factors, substrate quality, and ecological processes that support their growth
Phytochemical Compound, Antioxidant and Antibacterial Properties of Sargassum sp. Extracts from Pahawang Island, Lampung Province Khairani, Iffa Afiqa; Istiadi, Khaerunissa Anbar; Restiawati, Nawang
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.v11i1.6558

Abstract

Pahawang Island, located in Lampung Bay, has a variety of potential natural resources, one of which is macroalgae. One of the abundant brown macroalgae is Sargassum sp., with phytochemical components (flavonoids, steroids, tannins, and glycosides) that have potential as antioxidants, antibacterial, antitumor, anticancer, antifouling, and others. Sargassum sp. from Lampung waters, especially Pahawang Island still lacks scientific studies on its bioactive content and properties. This study aims to examine the phytochemical compounds (qualitatively and quantitatively), antioxidant activity (DPPH method) and antibacterial potential of Sargassum sp. extract (MIC/MBC method) against Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The results of phytochemical assay  showed that Sargassum sp. extract contained phenolic compounds, flavonoids, tannins, and saponins. Quantification results on total phenolic content were 0.56 mgGAE/g extract, total tannins were 4.27 mgTAE/g extract, total flavonoids were 14.19 mgQE/g extract, and total saponins were 5.54 %. Sargassum sp. extract classified as a very weak antioxidant with IC50 value of 964.10 ppm, and moderate antibacterial activity at a concentration of MIC/MBC 250/250 ppm against B. subtilis, E. coli, P. aeruginosa, and S. aureus
Vegetation Composition and Structure of Sapling Community in Girimanik Natural Forest Area, Setren Village, Slogohimo District, Wonogiri Putri, Almira Rahmadani; Santhyami, Santhyami; Agustina, Lina
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.v11i1.6999

Abstract

Stake plants, commonly known as saplings, are needed  to enhance soil structure, mitigate erosion, and bolster ecological stability. This research is essential as it provides a reference for knowledge pertinent to connected issues, which can be utilized to formulate policies that promote sustainability in natural forest ecosystems. This study seeks to ascertain the composition and structure of seedling vegetation in the Girimanik Natural Forest Area, Wonogiri. This research has not been conducted previously. The research methodology employs a quadratic sampling technique. Twenty-five plots, each measuring 5x5 m², were utilized by purposive sampling. This research identified 296 varieties of seedling plants across 30 species and 22 family. The sapling vegetation community in this region is predominantly composed of Pygeum parviflorum (nyampuh; English: Prunus), exhibiting an INP score of 59.24. The computed Shannon-Wiener diversity index in this study was 2.74, indicating a moderate amount of diversity, characterized by a balanced distribution of individual numbers without extreme diversity index values in the Girimanik forest area
Literature Study of Lactic Acid Bacteria in Bangka Belitung: Sources, Methodology, Utilization, And Identification Lingga, Rahmad; Saputri, Rinny; Fitriyani, Fitriyani; Indra, Muhammad Panca
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.v11i1.5196

Abstract

Bangka Belitung has various types of fermented foods, in the production of which lactic acid bacteria are involved. Lactic acid bacteria plays important role in enhancing the nutritional value of food ingredients, extending their shelf life, producing distinct aromas, and preventing contamination from pathogenic bacteria. Additionally, lactic acid bacteria can also act as probiotics for application in livestock or fisheries. This article examined several studies on lactic acid bacteria that were linked to the biological resources of Bangka Belitung. The aspects studied included the sources of lactic acid bacterial isolates, research methods or approaches employed, utilization, and identification of lactic acid bacteria. Most of the research related to lactic acid bacteria has been conducted on fermented foods, primarily 'rusip,' which is a fermented food product made from shrimp or fish. This review expected to provide an overview of the trends and research interest in lactic acid bacteria conducted in Bangka Belitung, while also mapping out aspects that need further exploration in subsequent research
Diversity of Mosquito Species (Diptera: Culicidae) as An Effort to Control Disease Vectors in Cattle in Amun Kay Village, Tanah Miring District, Merauke Hutabarat, Desmina Kristiani; Irianto, Apri; Lesik, Maria M. Nay; Praptiwi, Irine Ike; Gebse, Yolanda
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.v11i1.6468

Abstract

Amun Kay Village is one of the villages in Tanah Miring District developed into an agricultural center with a background of transmigrant people working as farmers and cattle breeders. This village is located in a lowland area dominated by open shrub areas, rice fields, and swamps. Swamp areas, agricultural fields, and cattle areas become breeding sites for various types of mosquitoes. This study aims to find out about the different kinds of mosquitoes that live in Amun Kay village, Tanah Miring District, so that programs that take care of and maintain animals, like cattle, can better control the mosquitoes that spread disease to cattle. We adjusted the cattle collection method to the specific conditions of the research location. Based on the results of mosquito collection in 3 cattle cages in Amun Kay village, 32 mosquito species with 9 genera were found. The diversity of mosquito species in this study was moderate, and the evenness index of mosquito species was high. The low mosquito dominance index indicates that few mosquitoes dominate an area around the cattle barns in Amun Kay Village, Tanah Miring District, Merauke
Circular Economy in Agriculture: Examining Factors Affecting People's Intention to Use Organic Fertilizer Sari, Risna Maya; Karimi, Karimi; Sormin, Siti Yuli Meilanda
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.v11i1.6535

Abstract

Examining the variables that affect people's intentions to use organic fertilizer in agriculture is the aim of this study. By identifying these factors, it is expected to provide a better understanding of what encourages or hinders people in using organic fertilizers. The findings of this study will significantly aid in the formulation of plans and regulations that can promote the use of organic fertilizers and the adoption of a circular economy in the field of agriculture. Methods This research is designed as an explanatory research that can explain the method of testing a theory to strengthen or reject the research hypothesis. Therefore, the explanatory approach is very suitable to be used in this research in accordance with the research objectives. The data in this study consisted of primary data collected using a questionnaire. To examine the behavioral components of this study, researchers employed the Partial Least Square (PLS) method in conjunction with Structural Equation Modeling (SEM). The urgency of this study arises from the pressing need to address environmental degradation, resource scarcity, and unsustainable agricultural practices. Therefore, it is important to implement agricultural practices that prioritize sustainability aspects, one of the solutions is the widespread use of organic fertilizers in the community. The study's findings indicate that farmers' intentions to utilize organic fertilizer are influenced by social, institutional, and economic factors
Diversity of Echinoderms in The Water of Dedap Island, Abang Island Sub-district, Batam City Sianipar, Sertika; Effendi, Yarsi; Agustina, Fenny
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.v11i1.6905

Abstract

Dedap Island is a group of small islands in the waters off the coast of Abang Island which is famous as a spot for anglers because of its clean location and abundance of marine life. This research is focused on identifying the diversity of Echinoderms in the waters surrounding Dedap Island, located in Abang Island sub-district, Batam City, Indonesia. Additionally, it examines the factors that influence the distribution and abundance of these species. The observation was conducted using line transect methods across various locations, leading to the identification of five species of Echinoderms: three from the class Holothuridae (sea cucumbers), one from the class Astroidea (starfish), and one from the class Echinoidea (sea urchins). The species Diadema setosum (sea urchin) emerged as the most dominant, with a total of 361 individuals recorded. The diversity index (H’) for Echinoderms in Dedap Island was classified as low (0.40), and the evenness index (E) also indicated low values (0.25), suggesting an uneven distribution of individuals and dominance by certain species. Contributing factors to this low diversity include ecological pressures, unstable productivity, and substrate conditions primarily composed of sand
Carbon Estimation in Mangrove Forests of The East Coast of North Sumatra Siswoyo, Bambang Hendra; Mardiana, Siti; Sabrina, Raja
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.v11i1.6405

Abstract

Mangrove forests are important ecosystems, providing various ecological, economic, and social benefits. They serve as habitats for a wide range of species, act as natural barriers against coastal erosion, and play a key role in carbon sequestration, which helps to reduce the impacts of climate change. This study used surveys to tree biomass growth and quantify the carbon stocks trapped in this ecosystem. The methodology applied in measuring carbon in mangrove forests is similar to that used in primary forests, although some unique aspects need to be considered, such as the accumulation of non-biodegradable debris. Aspects that need to be considered, such as litter accumulation cannot be included in technical carbon calculations. included in technical carbon calculations. The condition of mangrove forests in North Sumatra shows a significant decline, with a 61.21% significant decline, with a in primary mangrove area between 1990 to 2015, mainly due to land conversion for aquaculture and agriculture. Carbon sequestration in mangrove forests is crucial to mitigating climate change, with their capacity to store carbon in biomass and sediment. Rehabilitation efforts, such as propagation planting and seedlings, showed expected survival rates and large carbon storage potential, with total carbon stocks reaching 558.07 mgC ha-1. It is important to understand carbon storage dynamics and influencing factors, such as duration and nutrient inputs, for effective management and conservation strategies
Alopecia in Bats from Tropical Urban Islands Syamsi, Fauziah; Novarino, Wilson; Dahelmi, Dahelmi; Chairul, Chairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7188

Abstract

Background: Alopecia or alopecic syndrome is a hair loss condition on the body. Alopecia is caused by a wide variety of factors both internal to the individual (i.e. androgen activity, nutritional deficiencies, metabolic stress, hormonal imbalances) and external (i.e. human-induced pressures, allergens, ectoparasites, fungal dermatitis, bacterial, toxicities, environmental contaminant exposure, idiopathic disease, poor habitat conditions, anthropogenic activities, zinc deficiency, and ingestion of plant toxins). Methods: This study was conducted at four locations in Batam City, consisting of two fragmented forests in the city center and two islands far from the city area. Bats were captured using mist nets and harp traps with a total sampling effort of 120 net nights and 120 harp trap nights. Findings: This study captured 417 bats across seven species, with an overall alopecia prevalence of 10.79 %. The highest prevalence was found in Pipistrellus tenuis (100%), Kerivoula pellucida (50 %), and Macroglossus minimus (20 %), likely due to the small sample sizes of these species. Larger sample sizes resulted in lower prevalence rates: Balionycteris maculata (22.2 %), Cynopterus horsfieldii (11.1 %), C. brachyotis (9.2 %), and C. sphinx (6.86 %). The most severe hair loss generally occurs on the shoulders and neck. Some individuals show hair loss on the back, head, chest, abdomen, and other parts of the body. Alopecia is found in both males and females from mild to severe. The prevalence of alopecia in all species was higher in fragmented forests in urban to periurban, and rural areas. This was associated with differences in the level of anthropogenic pressure. Contribution: These findings provide a scientific contribution to understanding the relationship between alopecia in bats and anthropogenic pressures and highlight the importance of habitat conditions in population health in fragmented environments.
Hepatoprotective Activity of Hibiscus Flowers (Hibiscus rosa-sinensis) and Soursop Leaves (Annona muricata) Mix Infusion in Mus musculus Post Hyperuricemia Induction Lestari, Dian Fita; Atmaja, Vestidhia Yunisya; Fatimatuzzahra, Fatimatuzzahra; Wulansari, Shahnaz Shabrina; Febrianti, Eliza
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.6931

Abstract

Background: Liver has many functions in the metabolic system and detoxification of substances that are harmful to the body. Chemical intoxication due to drug use might induce liver damage. A histology examination can indicate liver damage induced by a chemical substance, as well as the condition of tissue structure and function associated with the disease. This study aims to investigate the hepatoprotective effect of mix infusion of hibiscus flowers and soursop leaves on the liver histological structure in mice induced by hyperuricemia using potassium oxonate. Methodology: This study used an experimental group design, involving 8-week-old mice. The groups were divided as follows: A1 (control), A2 (Potassium oxonate), A3 (allopurinol), A4 (infusion 25 %), A5 (infusion 35 %), and A6 (infusion 45 %). Histological image was examined using an optilab with five fields of view. Findings: The study's revealed that the control group had a normal liver histology structure, whereas the hyperuricemia treatment group experienced significant liver damage, including congestion and leukocyte infiltration, and the allopurinol treatment group experienced significant damage, including leukocyte infiltration and necrosis. Therapy with a combined infusion of hibiscus flowers and soursop leaves shown a hepatoprotective effect. Based on histological analysis, the 25 % concentration provided the greatest hepatoprotective impact when compared to other infusion concentration. Mix infusion of hibiscus flowers and soursop leaves demonstrates heproprotective activity in hyperuricemia mice induced by potassium oxonate. Contribution: This study demonstrates that the mix infusion of hibiscus flowers and soursop leaves has the potential to be a hepatoprotective agent, but further research is needed regarding long-term effects

Page 36 of 44 | Total Record : 437

 34   35   36   37   38 

Filter by Year

2015 2025


Reset
Filter By Issues
All Issue Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025 Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025 Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025 Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025 Vol 10, No 1 (2024): Jurnal Pembelajaran Dan Biologi Nukleus March 2024 Vol 10, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2024 Vol 10, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2024 Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024 Vol 9, No 3 (2023): Jurnal Pembelajaran Dan Biologi Nukleus November 2023 Vol 9, No 2 (2023): Jurnal Pembelajaran Dan Biologi Nukleus July 2023 Vol 9, No 1 (2023): Jurnal Pembelajaran Dan Biologi Nukleus March 2023 Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023 Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023 Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023 Vol 8, No 3 (2022): Jurnal Pembelajaran Dan Biologi Nukleus November 2022 Vol 8, No 2 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022 Vol 8, No 1 (2022): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022 Vol 8, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2022 Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022 Vol 8, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2022 Vol 7, No 2 (2021): Jurnal Pembelajaran Dan Biologi Nukleus September 2021 Vol 7, No 1 (2021): Jurnal Pembelajaran Dan Biologi Nukleus Maret 2021 Vol 7, No 2: Jurnal Pembelajaran Dan Biologi Nukleus September 2021 Vol 7, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2021 Vol 6, No 2 (2020): Jurnal Pembelajaran Dan Biologi Nukleus September 2020 Vol 6, No 2: Jurnal Pembelajaran Dan Biologi Nukleus September 2020 Vol 6, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2020 Vol 5, No 2 (2019): Jurnal Pembelajaran Dan Biologi Nukleus September 2019 Vol 5, No 2: Jurnal Pembelajaran Dan Biologi Nukleus September 2019 Vol 5, No 1 (2019): Jurnal Pembelajaran Dan Biologi Nukleus Vol 5, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Maret 2019 Vol 4, No 1 (2018): Jurnal Pembelajaran Dan Biologi Nukleus Februari 2018 Vol 4, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2018 Vol 4, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Februari 2018 Vol 3, No 2 (2017): Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2017 Vol 3, No 1 (2017): Jurnal Pembelajaran Dan Biologi Nukleus Februari 2017 Vol 3, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2017 Vol 3, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Februari 2017 Vol 2, No 2 (2016): Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2016 Vol 2, No 1 (2016): Jurnal Pembelajaran Dan Biologi Nukleus Februari 2016 Vol 2, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2016 Vol 2, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Februari 2016 Vol 1, No 2 (2015): Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2015 Vol 1, No 1 (2015): Jurnal Pembelajaran Dan Biologi Nukleus Februari 2015 Vol 1, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Agustus 2015 Vol 1, No 1: Jurnal Pembelajaran Dan Biologi Nukleus Februari 2015 More Issue