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All Journal Bioscience Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis FONDATIA AL-ULUM: JURNAL SAINS DAN TEKNOLOGI Atrium Pendidikan Biologi Journal On Teacher Education (Jote)
Irdawati Irdawati
Jurusan Biologi FMIPA Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

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The Effect of the Two Stay Two Stray Learning Model Based on a Scientific Approach to Student Competence in Biology Learning Rizka Putri Alti; Moralita Chatri; Irdawati Irdawati; Vauzia Vauzia
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 2 (2023): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i2.2933

Abstract

This study aims to determine the effect of the two stay two stray learning model based on a scientific approach to the competence of class XI students at SMAN 3 Pariaman. This type of research is a quasi-experimental research with a randomized control-group posttest only design. The research population was all class XI MIPA students at SMAN 3 Pariaman in the 2022/2023 academic year. Sampling used a purposive sampling technique, so that class XI MIPA 1 (experimental class) and class XI MIPA 3 (control class) were selected. Data analysis techniques using normality test, homogeneity test and hypothesis testing. Testing the hypothesis in the domain of knowledge uses the t test while testing the hypothesis in the domain of attitudes and skills using the Mann Whitney test. The results of the study found that the two stay two stray learning model based on a scientific approach had an effect on the competence in the realm of knowledge, attitudes and skills of class XI students at SMAN 3 Pariaman
The Ability of the Thermophilic Bacteria Triculture Consortium from Mudiak Sapan Hot Springs to Produce Biofuel Irdawati Irdawati; Putri Rachma Auliya; Dwi Hilda Putri; Dezi Handayani; Yusrizal Yusrizal
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 4 (2023): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i4.3480

Abstract

Biofuel is an alternative energy to replace fossil fuels. The most popular form of biofuel today is bioethanol. Biofuels are considered as a suitable alternative to fossil fuels because they are more environmentally friendly. Production of bioethanol utilizing thermophilic microorganisms is more profitable because thermophilic microbes generally have the characteristics of being able to use a variety of substrates, low contamination, and resistance to high temperatures. The use of microbial consortia tends to give better results than the use of monoculture isolates to optimize bioethanol yields. The aim of this study was to determine the compatibility and ability of the best thermophilic bacterial triculture consortium from the Mudiak Sapan hot springs in producing biofuel. This research is a descriptive research, to test isolates of a consortium of thermophilic bacteria that produce bioethanol. The results of this study showed that consortium isolates tended to give better results than monoculture isolates. The best thermophilic bacterial triculture consortium from the Mudiak Sapan hot springs in producing biofuels namely MS 12, 17, 18 produced a bioethanol content of 0.863%.
Co-Authors Anthoni Agustien Ardi Ardi Azwir Anhar Bob Refianto Des M Des Desi Nurmayenti Dezi Handayani Dwi Hilda Putri Faradilla Rattriana Fitri Angraini Fitri Arsih Ganda Hijrah Selaras Heffi Alberida Ilsa Septia Putri Indrawani Matondang Jannah Koftiah Khalif Alfajri Linda Advinda Linda Advinda Mades Fifendy Mei Niarti Moralita Chatri Moralita Chatri Mulia Mulia Nada Nafion Nisa Afifah Nur Vaizi Putri Ardila Sari Putri Rachma Auliya Putri Sarinami Rizka Putri Alti Sasmeri Sasmeri Syamsuardi Syamsuardi Vauzia Vauzia Witri Nofita Safitri Yetria Rilda Yusrizal Y Yusrizal Yusrizal Zulyusri Zulyusri