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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
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Study on the Production of Superior Seed Bunches of Oil Palm (Elaeis guineensis Jacq.) (Case Study: Indonesian Oil Palm Research Institute-PPKS Marihat Unit) Yabani, Yabani; Kuswardani, Retna Astuti; Susanto, Agus; Sihotang, Saipul
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.v10i2.5882

Abstract

This research aims to examine the production of superior oil palm seed bunches in the PPKS Marihat Unit.Data and information collection is carried out using direct and indirect methods. Field observations carried out include: Area conditions including: topography, soil conditions, Plant conditions including: plant growth, plant population and fruit condition, Technical culture conditions: fertilization, harvesting of seed bunches. Supporting data collected includes: garden production data, rainfall and fertilization data. The research results are bSeveral factors that cause low production include: a) fertilizer amounts that are far from plant needs, given the time, type; b) plant density which is classified as less than optimal due to ganoderma attacks. The number of bunches is the result of plant physiological processes, mainly determined by the ecophysiological conditions of the plant around 24 months before harvest, where the decrease in production in the number of bunches harvested in 2020 is the result of ecophysiological conditions in the form of fertilization which is not appropriate in 2019-2020.
Influence of LEAP2 (Liver Expressed Antimicrobial Peptide-2) and Ghrelin Binding to GHSR Gene Receptor as Factors Obesity Incidence: A Literature Review Hitopik, Asman; Kasasiah, Ahsanal; Malau, Jekmal
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.v10i3.5834

Abstract

Obesity is a serious issue in global health, which requires a more comprehensive understanding for the development of effective therapies. This study explores the role of Liver-Expressed Antimicrobial Peptide 2 (LEAP2) and its interaction with Ghrelin in regulating Growth Hormone Secretagogue Receptor (GHSR) as a potential obesity event. This method used in this review is a systematic literature analysis. The results obtained show that LEAP2, originally known as an antimicrobial, plays a significant role in metabolic regulation and body weight regulation. LEAP2 acts as a Ghrelin antagonist, reduces orexigenic effects and inhibits food intake, and exerts positive effects in tackling the effects of obesity such as hyperlipidemia and inflammation. The study also highlighted the potential of LEAP2 as a therapeutic target in obesity treatment, with palmitoylation modification showing increased stability and effectiveness of LEAP2. However, further understanding and clinical trial studies are needed to validate the preclinical findings and evaluate the long-term effects of LEAP2 regulation on human body weight and metabolic health, thus providing a basis for exploring potential clinical applications in future anti-obesity drug development
School Readiness Analysis in Student Profile Reinforcement Project of Pancasila and Rahmatan Lil Alamin (P5-PPRA): Implement Simulation At MAS Daruzzahidin Indra, Indra; Emda, Amna
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.v10i3.6119

Abstract

The Reinforcement Project Profile of Pancasila and Rahmatan Lil Alamin for Student activity (P5-PPRA) is a strategic effort to shape students' character in accordance with Pancasila values. The success of the implementation of P5-PPRA is highly dependent on the readiness of the school as the spearhead in the learning process. This study aims to analyze schools' readiness to implement P5-PPRA at the Daruzzahidin Private Islamic High School (MAS). This study uses a qualitative approach with a descriptive research design. Data collection was carried out through direct observation of the P5-PPRA preparation activities and in-depth interviews with teachers. Data analysis used the Miles and Huberman model. The study results showed that teachers at MAS Daruzzahidin had made initial preparations in designing the P5-PPRA activities that will be implemented in 2024. However, several aspects still need to be improved, such as mastery of teaching materials related to P5-PPRA, development of innovative teaching materials, and more intensive collaboration between teachers. Based on the results of the study, it can be concluded that the school's readiness in implementing P5-PPRA at MAS Daruzzahidin is still in its early stages. There needs to be a more intensive effort to improve teacher competence in designing, implementing, and evaluating P5-PPRA activities. Thus, students can gain meaningful learning experiences and are able to implement Pancasila values in everyday life
Analysis of Biological Textbooks at The High School Level on Cell Material in Second Grade (XI Class): In The Perspective of Figural Representation Aspect Khairunnisa, Azra; Rasyidah, Rasyidah
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.v10i3.6028

Abstract

This research aims to determine the relationship between image representation and the content of the material as well as the relationship between image representation and the reality of the image contained in the cell material. This research uses a method, namely: content analysis. Content analysis focuses on the characteristics of the material. This means that research methods are applied to written or visual material to identify certain parts of that material. The material analyzed can be textbooks, newspapers, web pages, speeches, television programs, advertisements, musical compositions, or documentation (Ary, 2010). Based on the results and discussions carried out, it can be concluded that the image representation in book A is superior compared to book B because the presentation of the images in book A is more balanced between the images, namely around discussion of cells in the material accompanied by images
Study of Herbal Agro-Tourism as an Environmental Conservation Effort in Seberaya Village, Karo District, Indonesia Munthe, Theodora Ginting; Lubis, Zulkarnain; Lubis, Yusniar
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.v10i3.6020

Abstract

Seberaya Village has a high biodiversity potential in flora, especially in herbal plants. The aim of this research is to identify the potential of herbal agrotourism as an environmental conservation measure to achieve sustainable development in the region. Descriptive qualitative method with observation and interview data collection. Data analysis techniques using the Miles and Huberman model. The results showed that there is potential for agritourism such as physical conditions, socio-economic conditions of the community and herbal plant commodities that support in Seberaya village. Visitors can enjoy cool, clean and beautiful natural panoramas, conduct tourism recreation with edufarming activities, namely the introduction of herbal plants, cultivation practices and herbal medicine processing. Herbal agritourism can contribute to environmental conservation by promoting organic practices, sustainable agriculture and raising awareness of the importance of conserving natural resources and biodiversity. With the existence of agritourism in Seberaya Village, it can promote local products, combat depopulation, protect nature in these areas, reduce the use of chemicals, meet the demand for healthy food, improve wildlife habitat, support local communities and encourage ethical choices, in line with the circular economy for a greener future
Evaluation of The Reproductive Behavior of Male Timor Deer (Cervus timorensis) Agains Weather Changes Siagian, Tetty Barunawati; Putri, Nabilla Rachma
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.v11i1.6193

Abstract

Indonesia has two seasons, namely rainy and dry. During this season, weather changes can occur. These weather changes can affect the reproductive conditions of male deer that are in heat. This study aims to evaluate the reproductive behavior of male Timor deer against weather changes in Ranca Upas Deer Captivity. Observations were made for 14 days on 3 males deer. Observation of male Timor deer reproductive behavior was carried out on the parameters of vocalization, fighting, licking the female, kissing the female genitalia, riding the female, mating, flehmen, wallowing, rubbing the body, and following the female. Observations were made by recording each reproductive activity based on its frequency. Observations were made for 6 hours, namely in the morning and afternoon. Observations were made at a fairly close distance of about 5-10 meters from the deer. Observations were also made of weather, temperature, and humidity. The results of observing the temperature at Ranca Upas Deer Captivity showed that the average temperature in the morning was 18℃ and afternoon 16℃. The average humidity in the morning is 77% and 81% in the afternoon. Observations on the reproductive behavior of male Timor deer showed the effect of weather on sexual reproductive behavior. Cold weather causes mating frequency and sexual activity to increase compared to summer. This condition can be seen from the increase in reproductive activity based on behavior, namely licking the female, kissing the female genitalia, riding the female, mating, flehmen, rubbing the body against the female and following the female
Explorating Flower Morphology and Pollen Types of Various Angiospermae Families from Huluduotamo Village, Gorontalo Thalib, Moh. Randy Putra Pratama; Lamante, Nazwa S.; Tandililing, Indayani; Ibrahim, Rawiyanti; Mahluk, Linda K.; Ishak, Sri Layla Putri; Mantali, Magfirah F.; Djafar, Nazwa H.; Bano, Nurhayati S.; Ahmad, Jusna; Febriyanti, Febriyanti
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.v11i1.6792

Abstract

Huluduotamo village is one of the villages in Suwawa District, Bone Bolango Regency, Gorontalo Province. The village is situated in the middle of the countryside within the Suwawa district area. The potential of Huluduotamo village is the potential of natural resources; thus, the exploration of flower morphology and pollen types of various angiosperm families was carried out in the village. Therefore, this study aims to look at and figure out the shape of pollen from different plant families, mainly Malvaceae and Fabaceae, by looking at pollen units, aperture types, wall thickening, and exine decoration. We conducted the sampling in the Huluduotamo village, Gorontalo, using direct observation methods and descriptive analysis under a microscope. The study found that the pollen from the Hibiscus rosa-sinensis L. plant in the malvaceae family has a monad pollen unit, an apantoporate aperture type, thickening of the centrifugal wall, and decoration on the echinate exine. Some plants, like Caesalpinia pulcherrima L. in the Fabaceae family, have pollen that is made up of a single unit, an atricolporate aperture for the red variety and a parasyncolporate aperture for the yellow variety, and psilate axine decoration. The similarity of the monad pollen unit shows how angiosperm plants reproduce, while differences in aperture types and axine ornamentation show how the shape of the plant has changed to support reproduction. This research provides important information for the identification of plant species and supports flowering plants
Fluid Secretion of Fallopian Tube Epithelial Cells of Mice (Mus musculus) BALB/C with Pelvic Inflammatory Disease (PID) Infected with Candida albicans Post Therapy with Myrmecodia sp. Jack Extract Ajiza, Pratisa Delfiera; Hujattusnaini, Noor; Ayatussa'adah, Ayatussa'adah
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.v11i1.6893

Abstract

This study examines the therapeutic potential of Myrmecodia sp. extract in treating Pelvic Inflammatory Disease (PID) induced by Candida albicans in Balb/c  mice. The study used a true experimental design with a post-test group. The method involved administering Myrmecodia sp. extract with various concentrations (from 0.4 to 3.2 %) to female Balb/c   mice suffering from PID. Observations included clinical indicators of infection, the number of bacterial colonies, and histopathological changes in the epithelial cells of the fallopian tube mucosa. The results showed that Myrmecodia sp. contains flavonoids, tannins, terpenoids, and saponins, which have antimicrobial and anti-inflammatory properties. The   mice that were infected with Candida albicans had a lot fewer bacterial colonies after being treated with Myrmecodia sp. extract, but it did not completely get them back to how they were before the infection. The ANOVA test showed that there were important differences between the treatment groups, which shows that Myrmecodia sp. works as an extra treatment for PID. These results confirm the potential of Myrmecodia sp. as an alternative herbal therapy for PID, although further research is needed to improve its effectiveness and understand its mechanism of action.
Isolation and Characterization of Endophytic Bacteria from The Roots of Avicennia sp. in The Mangrove Area of Gunung Anyar, Surabaya Azzahra, Fatimah; Prasetyawati, Endang Triwahyu; Lestari, Safira Rizka
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.v11i1.6596

Abstract

Mangroves are unique ecosystems that support biodiversity, including endophytic microorganisms. Endophytic bacteria group is a group of microbes that have a mutualistic symbiosis to the host plant without harming the host, and can act as biocontrol agents and plant stimulants. Endophytic bacteria have a very wide host range. Each plant has an abundance and diversity of endophytic bacteria, depending on the internal and external factors that affect it. This study aims to determine the characteristics of endophytic bacteria and identify the diversity of endophytic bacteria found in Avicennia sp. Method Sampling from mangrove area of Gunung Anyar, Surabaya. Characterization of endophytic bacteria was done by Gram test, spore staining test, catalase test, oxidative-fermentative test, and selective media test (King's B and Yeast Dextrose Carbonate). The results showed the existence of several isolates of endophytic bacteria that have morphological diversity and different characteristics, such as shape, color, colony edge, and colony surface. Conclusions In this study has been successfully isolated some endophytic bacteria such as Lactobacillus sp., Corynebacterium sp., Bacillus sp., Xanthomonas sp., and there are also endophytic bacterial isolates that have not been identified. This study contributes to an early understanding of the diversity of microorganisms in mangrove ecosystems and opens up opportunities for further exploration of their potential applications, one of which is in agriculture
Enhancement of Omega-3 DHA content by Feeding Hermetia illucens and Microalgae Aurantiochytrium sp. on Catfish Yarza, Husnin Nahry; Hutari, Andri; Meitiyani, Meitiyani; Nisaa, Ranti An; Rhidailahi, Putri Ayu; Prameswari, Dhanti Cyntia; Utomo, Doddy Irawan Setyo
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.v11i1.5725

Abstract

The growing demand for sustainable and high-quality animal feed has led to exploring alternative sources of protein and other essential nutrients. The black soldier fly (BSF) maggots Hermetia illucens and microalgae Aurantiochytrium sp. are promising candidates. Both have shown significant potential due to their nutritional profiles and environmental benefits. This study aimed to compare the fatty acid content of two groups of Sangkuriang catfish. One group was given commercial animal feed, while the other group was fed with a combination of Aurantiochytrium sp. microalga biomass feed, Hermetia illucens maggot, rice bran, and corn flour. The catfish fed with Aurantiochytrium sp. microalga biomass, Hermetia illucens maggot, rice bran, and corn flour had a different fatty acid composition than the control group. This alternative diet led to an increase in the omega-3 docosahexaenoic fatty acid (DHA) content in the catfish. The study results suggest that fish feed containing Hermetia illucens maggots and microalgae Aurantiochytrium sp. can enhance fish's beneficial nutrition after being fed this particular feed mixture. 

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