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All Journal Jurnal Natur Indonesia JUPE : Jurnal Pendidikan Mandala
Supar, Supar
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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Penghambatan Ekstrak Etanol Sereh (Cymbopogon citratus (DC) Stapf ) terhadap Produksi Verotoksin Escherichia coli Verotoksigenik Cepeda, Gino Nemesio; Hariyadi, Ratih Dewanti; Supar, Supar
Jurnal Natur Indonesia Vol 13, No 1 (2010)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.97 KB) | DOI: 10.31258/jnat.13.1.72-76

Abstract

Citronella was a spicy plant used as seasoning in Indonesian food. It was reported to have antimicrobial activity. Itsextract in form of volatile oil prepared by distilation can inhibit the growth of some bacteria. The objective of theresearch was to know the inhibition of ethanolic extract of the citronella on growth and verotoxin production ofverotoxigenic Escherichia coli. The assay of antimicrobial activity was done by using broth dilution and verocellassay. The results indicated that minimum inhibitory concentration of extract can inhibit effectively verotoxinproduction of verotoxigenic Escherichia coli.
Persepsi Guru Dalam Pembelajaran Online Pada Masa Pandemi Covid-19 Di Madrasah Ibtidaiyah Mathlaul Anwar Bogor Supar, Supar; Iswandi, Irvan; Mardani, Dadan
JUPE : Jurnal Pendidikan Mandala Vol 8, No 1 (2023): JUPE : Jurnal Pendidikan Mandala (Februari)
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jupe.v8i1.4734

Abstract

Learning and learning in principle can be done anywhere and anytime, even if there is a distance between the teacher and students. Online learning is carried out because of a situation that encourages and supports distance learning through computer networks or the internet. Perceptions, perspectives, opinions and strategies carried out by a teacher in online learning are not always the same. This study uses research methods and procedures with a qualitative descriptive approach. Collecting data through observation, interviews and documentation. The type of qualitative descriptive research used in this study was intended to obtain information about teacher perceptions in the implementation of online learning during the pandemic. The results of research in online learning at Madrasah Ibtidaiyah Mathlaul Anwar Tegal Waru Ciampea Bogor, are; 1) The teacher's perception in the implementation of online learning is going well. Differences in grade level or student age, affect the implementation of online learning. The WhatsApp application is quite helpful, and easy to use, not much internet quota is used and efficient for delivering learning materials; 2) The obstacle or obstacle is that there are still low-grade students who cannot read, do not have mobile phones, limited internet quota, and parents are busy working. Teachers have difficulty measuring students' abilities. Parents who are less tech-savvy, internet signal is difficult. Parents must understand technology and have time to guide their children
Co-Authors Dadan Mardani Gino Nemesio Cepeda Irvan Iswandi Ratih Dewanti -Hariyadi