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All Journal METAMORFOSA Journal of Biological Sciences Jurnal Mu'allim
Ulfayani Mayasari
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Education Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Social Sciences

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Isolasi Dan Karakterisasi Bakteri Heterotrofik Pada Kawasan Perairan Pantai Indah Kalangan, Tapanuli Tengah Wanda fadilah; Rasyida .; Ulfayani Mayasari
Metamorfosa: Journal of Biological Sciences Vol 9 No 2 (2022)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2022.v09.i02.p10

Abstract

This research aims to determine the presence of heterotrophic bacteria in the coastal waters of Indah Kalangan, Central Tapanuli and what genus of heterotrophic bacteria were found in the coastal waters of Indah Kalangan, Central Tapanuli. The working procedure in this research is the characterization of bacterial morphology, gram staining and also characterization based on biochemical tests. The descriptive method will be used in the data analysis process using Bergey's Manual of Determinative Bacteriology 8th Edition, Bergey's Manual Of Systematic Bacteriology 2nd Edition and journals. The results of this study obtained 16 isolates of heterotrophic bacteria, of which 13 bacterial isolates belonged to the Bacillus genus and 3 bacterial isolates belonged to the Vibrio genus. The results showed that the coastal waters of Indah Kalangan contained heterotrophic bacteria with the genus Bacillus and the genus Vibrio. Keywords: Heterotrophic Bacteria, Bacillus, Vibrio, Indah Kalangan Beach
Pengaruh Model Pembelajaran Discovery Learning Terhadap Hasil Belajar Siswa Kelas VIII SMP Negeri 17 Medan Latifa Hanum; Husnarika Febriani; Ulfayani Mayasari

Publisher : Fakultas Agama Islam Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/mu'allim.v5i2.3856

Abstract

The Disclosure Picking up learning model is a model for creating dynamic understudy learning techniques by self-revelation and self-examination, so that results will be gotten that will keep going quite a while in memory and are not handily forgotten by understudies. The reason for this exploration is to find out how results are impacted by utilizing the Disclosure Picking up learning model. Understudies in class VIII at SMP Negeri 17 Medan. The expression "quantitative exploration" alludes to concentrates on that current information in mathematical structure and utilize factual examination. By administering tests to determine the learning outcomes of students, information collection is completed. The trial class and the control class were the two classes used by experts. Considering the assessment shows that there are contrasts in student learning results. The typical post-test consequences of the exploratory and control classes uncover understudy learning results. The control class's average post-test score was 56.57, while the experimental class's average post-test score was 82.27. The delayed consequences of the ttest test show that the tcount regard is 12.237 and the ttable worth is 1.697 so it shows tcount > ttable then Ha is recognized. It is possible to draw the conclusion that students in class VIII at SMP Negeri 17 Medan benefit from the Discovery Learning learning model.
Co-Authors Husnarika Febriani Latifa Hanum Rasyida . Wanda fadilah