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All Journal Biosfer: Jurnal Tadris Biologi Jurnal Vokasi Al Jahiz: Journal of Biology Education Research Biosaintifika: Journal of Biology & Biology Education
Santos, Americo dos
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Social Sciences Other

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Improving Student Abilities in Plant Anatomy Courses Using a Collaboration of Research-Based Learning Models and Gamification Techniques Nau, Getrudis Wilhelmina; Sepe, Florentina Yasinta; Missa, Hildegardis; Santos, Americo dos
Al Jahiz Vol 5 No 2 (2024): Al-Jahiz: Journal of Biology Education Research, July-December 2024
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v5i2.9328

Abstract

The quality of education in NTT is still low and needs to be improved. One of them is by improving the quality of learning through the collaboration of innovative learning models. The focus of this study was to determine the increase in students' abilities in plant anatomy courses using collaborative research-based learning models and gamification-based assessment techniques. This pre-experiment research used a qualitative research approach. The research sample was determined using purposive sampling technique with one group pretest-postest design. The test data were analyzed descriptively. The results showed that there was a difference in the average pretest of 40.5 and posttest of 80.5. The results of the n-gain calculation obtained a score of 0.6 with the gain category being moderate. Classically, the class was complete with a percentage of 100%. The conclusion of the results of this study is that there is an effect of blended learning strategies through the collaboration of research-based learning models and gamification-based assessment techniques on student learning outcomes in the Unwira Biology Education Study Program.
Antibacterial Production by Endophytic Bacteria from Catharanthus roseus in East Timor Against Methicillin-Resistant Staphylococcus aureus  Missa, Hildegardis; Ndukang, Sardina; Djalo, Aloysus; Nau, Getrudis W.; Susilowati, Ari; Baunsele, Anselmus Boy; Santos, Americo Dos
Biosaintifika: Journal of Biology & Biology Education Vol. 16 No. 2 (2024): August 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v16i2.7675

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) refers to a group of bacteria that cause infections and present a challenge in treatment due to their resistance to several antibiotics. Therefore, research is needed to discover endophytic bacteria from Catharatus roseus capable of producing new antibiotics. This study aims to identify endophytic bacteria from C. roseus plants originating from Timor Island, as producers of effective antibacterial compounds against MRSA. Antibacterial activity tests were conducted on two types of test bacteria, namely MRSA and Escherichia coli. DNA extraction was performed using the PrestoTM Mini dDNA kit Bacteria, and amplification of the 16S rRNA gene was carried out. The research found bacterial isolates showing morphological similarities to Bacillus sp. Screening results indicated that four bacterial isolates exhibited high potential antibacterial activity against MRSA, as evidenced by the formation of inhibition zones with diameters of approximately 25 mm-35 mm. Amplification of the four endophytic bacterial isolates from C. roseus identified them as Paenibacillae FaCH2, Bacillae BoCH3, Aneurinibacillae BoCH5, Aneurinibacillae BiCH8, which are new species based on 16S rRNA gene similarity of less than 97%. In conclusion, endophytic bacteria from C. roseus producing antibacterial compounds against MRSA have been successfully identified. This is beneficial to society because the antibacterial compounds produced can serve as a basis for developing new drugs that are effective against MRSA infections, considering the increasing antibiotic resistance against MRSA.
Edukasi Pemeriksaan Golongan Darah Bagi Siswa Sekolah Menengah EBC Fatuquero Gleno Distrito Ermera Timor Leste Pogo, Fransiskus Jordin; Laka, Religius Karo; Nau, Getrudis Wilhelmina; Missa, Hildegardis; Santos, Americo dos
Jurnal Vokasi Vol 8, No 2 (2024): Juli
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/vokasi.v8i2.5264

Abstract

Transfusi darah merupakan suatu tindakan pemberian darah dari donor ke resipien. Dalam kondisi tertentu transfusi darah dapat sangat bermanfaat menyelamatkan nyawa manusia. Oleh karena itu penting bagi seseorang mengetahui golongan darahnya. Namun permasalahan yang dialami masyarakat khususnya siswa sekolah menengah EBC Fatuquero Gleno Timor Leste adalah belum adanya pemahaman mengenai golongan darah manusia dan pentingnya pemeriksaan golongan darah. Hal ini menjadi dasar kegiatan ini dilakukan dengan tujuan memberikan edukasi menyeluruh kepada siswa sekolah menengah EBC Fatuquero mengenai golongan darah dan pentingnya mengetahui golongan darah masing-masing. Metode yang digunakan adalah sosialisasi, demonstrasi dan uji golongan darah secara langsung dengan metode slide. Hasilnya adalah seluruh siswa memahami tentang tipa-tipe golongan darah manusia dan cara melakukan pemeriksaaan golongan darah seseorang serta mengetahui golongan darah mereka masing-masing.
The Effect of Integrating Intertidal Gastropod Diversity on Ecological Literacy and Professional Competence of Pre-Service Biology Teachers Djalo, Aloysius; Missa, Hildegardis; Santos, Americo Dos
Biosfer: Jurnal Tadris Biologi Vol 17 No 1 (2026): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v17i1.30728

Abstract

The limited use of local environmental contexts in Invertebrate Zoology courses may reduce ecological literacy and professional competence among pre-service biology teachers. This study examined the effect of integrating intertidal gastropod biodiversity into course instruction on students’ ecological literacy and professional competence. A quasi-experimental pretest–posttest control group design was used with 58 pre-service teachers assigned to experimental and control groups. The experimental group participated in biodiversity-based contextual learning using authentic field data, while the control group received conventional instruction. Data were collected through validated ecological literacy and professional competence tests and analyzed using N-Gain and analysis of variance (ANOVA). The experimental group achieved a higher N-Gain score (0.73, high category) than the control group (0.51, moderate category). ANOVA showed a significant effect on posttest scores (p < 0.001) with a large effect size (Partial η² = 0.311). These findings indicate that authentic biodiversity-based learning enhances ecological understanding and professional competence. Pengaruh Integrasi Keanekaragaman Gastropoda pada Zona Intertidal terhadap Literasi Ekologi dan Kompetensi Profesional Mahasiswa Calon Guru Biologi ABSTRAK: Terbatasnya penggunaan konteks lingkungan lokal dalam mata kuliah Zoologi Invertebrata dapat mengurangi literasi ekologi dan kompetensi profesional calon guru biologi. Penelitian ini mengkaji pengaruh integrasi keanekaragaman gastropoda intertidal dalam pembelajaran terhadap literasi ekologi dan kompetensi profesional mahasiswa. Penelitian ini menggunakan desain kuasi eksperimen dengan pola pretest–posttest control group yang melibatkan 58 calon guru, yang dibagi ke dalam kelompok eksperimen dan kelompok kontrol. Kelompok eksperimen mengikuti pembelajaran kontekstual berbasis keanekaragaman hayati menggunakan data lapangan autentik, sedangkan kelompok kontrol memperoleh pembelajaran konvensional. Data dikumpulkan melalui tes literasi ekologi dan kompetensi profesional yang telah divalidasi, kemudian dianalisis menggunakan N-Gain dan analysis of variance (ANOVA). Kelompok eksperimen memperoleh skor N-Gain lebih tinggi (0,73; kategori tinggi) dibandingkan kelompok kontrol (0,51; kategori sedang). Hasil ANOVA menunjukkan pengaruh signifikan terhadap skor posttest (p < 0,001) dengan effect size besar (Partial η² = 0,311). Temuan ini menunjukkan bahwa pembelajaran autentik berbasis keanekaragaman hayati dapat meningkatkan pemahaman ekologi dan kompetensi profesional.
Co-Authors Aloysius Djalo Anselmus Boy Baunsele ARI SUSILOWATI Getrudis Wilhelmina Nau Hildegardis Missa Laka, Religius Karo Ndukang, Sardina Pogo, Fransiskus Jordin