Claim Missing Document
Check
Articles

Found 35 Documents
Search

Pengaruh Model Pembelajaran Project-Based Learning Berbantuan Scrapbook Terhadap Hasil Belajar Siswa pada Materi Sistem Ekskresi Manusia Triwulandari Saleh; Debby J. J. Rayer; Nonny Manampiring
Jurnal Cakrawala Pendidikan dan Biologi Vol. 2 No. 1 (2025): Maret: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i1.174

Abstract

This study aims to find out whether Project Based Learning using scrapbooks has an effect on improving student learning outcomes in human excretory system material at SMA Negeri 1 Motoling. This study was conducted using an experimental method with a pre-test post-test control group design research design. The sample in this study consisted of two classes, namely class XI 5 as an experimental class with 20 students and class XI 7 as a control class with 20 students. The results of the research in the experimental class found that the maximum post-test score was 90, and the minimum score was 65 with an average number of 77. In the control class, the maximum post-test score was 85 and the minimum score was 20 with an average of 46.26. Thus, it can be concluded that there is a significant influence of the use of the project-based learning model using scrapbooks on student learning outcomes at SMA Negeri 1 Motoling on the material of the human excretory system.
Keanekaragaman Echinodermata dan Hubungannya dengan Komposisi Lamun pada Zona Intertidal Pantai Kiama, Sulawesi Utara Julianti Malensang; Revolson A. Mege; Nonny Manampiring
Switch : Jurnal Sains dan Teknologi Informasi Vol. 3 No. 5 (2025): Switch : Jurnal Sains dan Teknologi Informasi
Publisher : Asosiasi Profesi Telekomunikasi Dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/switch.v3i5.686

Abstract

Seagrass beds are coastal ecosystems that have important ecological functions as a provider of habitat, food sources, protection, and reproductive areas for various marine life including Echinoderms. This study aims to analyze the diversity of Echinoderms and their relationship with seagrass distribution in Kiama Beach, Melonguane District, Talaud Islands Regency. The research was conducted in the intertidal zone at three stations using the exploration method with purposive sampling technique. Each station is divided into three plot installation zones measuring 4 × 4 meters, with observations made at low tide. Environmental parameters (temperature and pH), type and number of Echinoderm individuals, and seagrass species were recorded and analyzed using the Shannon-Wiener diversity index and product moment correlations. The results showed that the Echinoderma community consists of two classes and five species: Archaster typicus, Linckia laevigata, Culcita novagueniae, Holothuroidea scabra, and Holothuroidea forskali, with the Asteroidea class dominating (75%). The diversity index (H') value was relatively low at all stations with a range of 0.6261–0.6631. Seagrass beds consist of five species, namely Halophila ovalis, Cymodocea rotundata, Thalassia hemprichii, Halodule uninervis, and Syringodium isoetifolium, with the highest abundance found in Halophila ovalis. Correlation results showed a strong to very strong relationship between the abundance of Echinoderms and certain seagrass types (r = 0.77–0.99) as well as a strong correlation at the overall level of the station (r = 0.74). This study confirms that the presence and abundance of Echinoderms is greatly influenced by the density and composition of seagrass species. These findings provide important baseline data for the management and conservation of seagrass beds as a support for the sustainability of coastal biodiversity.  
Identification of Bacteria Isolated from Sea Urchin (Diadema setosum) Gonads Inhibiting Pseudomonas fluorescens and Staphylococcus aureus Growth Andini Maurent Dwiyanti; Helen Joan Lawalata; Iriani Setyawati; Anita Constanci Christine Tengker; Nonny Manampiring
Advances in Tropical Biodiversity and Environmental Sciences Vol. 9 No. 2 (2025): June 2025
Publisher : Institute for Research and Community Services Udayana University (LP2M Universitas Udayana)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2025.v09.i02.p05

Abstract

Sea urchins are organisms that have antibacterial, antitumor, and anticancer abilities. The gonads can be used as a food source because they store 28 kinds of amino acids, vitamin B complex. This research aims to determine the type of bacteria from the gonads of sea urchins (Diadema setosum) which have inhibitory power against the growth of Pseudomonas fluorescens and Staphylococcus aureus bacteria. This research used an exploratory method which was analyzed descriptively, using stages in which sea urchin samples were taken and antibacterial tests against Pseudomonas fluorescens and Staphylococcus aureus from sea urchin gonads using the spread method. The media used for the process of isolating bacteria from the gonads of the sea urchin Diadema setosum is Nutrient Agar (NA) media. Isolate colonies that grew after incubation for 24 hours were separated based on differences in colony morphology. Morphological characterization of bacterial cells begins with gram staining. The diameter of the inhibition zone in the test bacteria shows different shapes. The research obtained 8 bacterial isolates, namely isolates B1-B8 which were gram-negative. The eight bacterial isolates have the potential as antibacterials against the test bacteria P. fluorescens and S. aureus. Isolates B1, B2, B3, B7 are similar to the genus Proteus, while isolates B4, B5, B6, and B8 are similar to the genus Citrobacter. The diameter of the largest inhibition zone in the P.fluorescens test bacteria, namely isolate B1, was 9.03 mm. Meanwhile, the smallest diameter for isolate B7 was 6.97 mm. In the S.aureus test bacteria, the largest diameter in isolate B1 was 11.09 mm. Meanwhile, the smallest diameter for isolate B4 was 8.57 mm.
Efektivitas Serbuk Daun Kersen (Muntingia calabura L.) dan Daun Kelor (Moringa oleifera) terhadap Kadar Glukosa Darah Tikus Putih (Rattus norvegicus L.) Hiperglikemia Elsi Elsi; Iriani Setyawati; Nonny Manampiring; Yermia Semuel Mokosuli; Anita Constanci Christine Tengker; Helen Joan Lawalata
Metamorfosa: Journal of Biological Sciences Vol. 11 No. 01 (2024)
Publisher : Program Magister Ilmu Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2024.v11.i01.p6

Abstract

Dua puluh tujuh ekor tikus putih (Rattus norvegicus L.) jantan dibagi menjadi 9 kelompok perlakuan yaitu kontrol normal (K1), kontrol negatif (K2), kontrol positif (K3), serbuk daun kersen 800 mg/kgB (K4), serbuk daun kelor 800 mg/kgBB (K5), serbuk daun kersen 1600 mg/kg BB (K6), serbuk daun kelor 1600 mg/kgBB (K7), kombinasi serbuk daun kersen 400 mg/kgBB dan daun kelor 400 mg/kg BB (K8), kombinasi serbuk daun kersen 800 mg/kg BB dan daun kelor 800 mg/kgBB (K9). Pengukuran kadar glukosa darah tikus dilakukan pada hari ke-3, 7, dan 10. Hasil analisis menunjukan bahwa pemberian dosis kombinasi serbuk daun kersen 800 mg/kgBB dan daun kelor 800 mg/kgBB merupakan dosis yang paling efektif dalam menurunkan kadar glukosa darah pada tikus putih jantan
Efektivitas Serbuk Daun Kersen (Muntingia calabura L.) dan Daun Kelor (Moringa oleifera) terhadap Kadar Glukosa Darah Tikus Putih (Rattus norvegicus L.) Hiperglikemia Elsi Elsi; Iriani Setyawati; Nonny Manampiring; Yermia Semuel Mokosuli; Anita Constanci Christine Tengker; Helen Joan Lawalata
Metamorfosa: Journal of Biological Sciences Vol. 11 No. 01 (2024)
Publisher : Program Magister Ilmu Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2024.v11.i01.p6

Abstract

Dua puluh tujuh ekor tikus putih (Rattus norvegicus L.) jantan dibagi menjadi 9 kelompok perlakuan yaitu kontrol normal (K1), kontrol negatif (K2), kontrol positif (K3), serbuk daun kersen 800 mg/kgB (K4), serbuk daun kelor 800 mg/kgBB (K5), serbuk daun kersen 1600 mg/kg BB (K6), serbuk daun kelor 1600 mg/kgBB (K7), kombinasi serbuk daun kersen 400 mg/kgBB dan daun kelor 400 mg/kg BB (K8), kombinasi serbuk daun kersen 800 mg/kg BB dan daun kelor 800 mg/kgBB (K9). Pengukuran kadar glukosa darah tikus dilakukan pada hari ke-3, 7, dan 10. Hasil analisis menunjukan bahwa pemberian dosis kombinasi serbuk daun kersen 800 mg/kgBB dan daun kelor 800 mg/kgBB merupakan dosis yang paling efektif dalam menurunkan kadar glukosa darah pada tikus putih jantan