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All Journal JURNAL KESEHATAN, SAINS, DAN TEKNOLOGI (JAKASAKTI) Jurna Beta Kimia
Rohi Bire, Winioliski L.O.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Health Professions Medicine & Pharmacology Public Health

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Konsistensi dan Dependabilitas Penilaian Microteaching pada Program Studi Pendidikan Kimia : Teori Generalisabilitas Lestarani, Dewi; Rosnawati, Raden; Anarato, Antonius Umbu; Lalang, Arvinda Ceniorita; Christianto, Heru; Ulfah, Maria; Rohi Bire, Winioliski L.O.; Lalang, Adrian R.
Jurnal Beta Kimia Vol 4 No 2 (2024): Volume 4, Nomor 2: November 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v4i2.19515

Abstract

Subjektivitas dan kurang konsistennya penilai/rater dalam proses penyekoran merupakan kritik yang umum ditujukan pada penilaian dalam pembelajaran. Oleh karena itu, artikel ini menyajikan hasil reliabilitas penilaian pada matakuliah Microteaching menggunakan tori generalisabilitas dengan desain px (i:r). Data yang dikumpulkan merupakan nilai ujian mahasiswa baik ujian pada nilai pengamatan di kelas, ujian tengah semester, ujian akhir semester. Responden berjumlah 30 orang, dengan 5 jenis tes dan dinilai oleh 3 rater yang berbeda. Analisis data pada pada artikel ini menggunakan program R untuk menghitung relative error varians; mendapatkan koefisien generalizabilitas dan coefficient dependability dari hasil tes secara empirik. Hasil penelitian didapatkan nilai eror terbesar terdapat pada person dan rater 1 dengan nilai 28.6 % dan 18%, nilai koefisien generalizabilitas sebesar 0.93 dan nilai koefisien dependability sebesar 0.69. Sehingga berdasarkan teori D maka dilakukan modifikasi dengan menambahkan jumlah rater agar nilai koefisien dependability menjadi > 0.7.
Antibacterial Activity of Amfoang Wild Honey Enriched with Red Ginger (Zingiber officinale var rubrum) Extract against Escherichia coli Rohi Bire, Winioliski L.O.; Pollo, Resky Alexander; W. Djuma, Agustinda
JURNAL KESEHATAN, SAINS, DAN TEKNOLOGI (JAKASAKTI) Vol. 4 No. 3 (2025): JURNAL KESEHATAN, SAINS, DAN TEKNOLOGI (JAKASAKTI)
Publisher : LPPM Universitas Dhyana Pura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36002/js.v4i3.4950

Abstract

Escherichia coli is a Gam-negative, short rod-shaped, non-spore-forming bacterium that normally inhabits the human intestine. However, when its population exceeds the normal limit or when it relocates from its natural habitat (the large intestine) to other parts of the body, it can pose a serious health risk. Numerous reports have indicated increasing antibiotic resistance in E. coli, which has encouraged the use of natural products for disease prevention and treatment. Honey and red ginger (Zingiber officinale var. rubrum) are among the natural ingredients known to contain antibacterial compounds such as polyphenols, flavonoids, glycosides, and phenolic derivatives including gingerol and shogaol. This study aimed to determine the inhibitory activity of Amfoang honey enriched with red ginger extract (Zingiber officinale var. rubrum) against the growth of Escherichia coli. Red ginger extracts at concentrations of 25%, 50%, 75%, and 100% were mixed with wild honey in a 1:1 ratio. Antibacterial testing was conducted using the disc diffusion method. Amoxicillin 30 µg served as the positive control, while a blank disc soaked in sterile distilled water was used as the negative control. After 24 hours of incubation, inhibition zone diameters were recorded as 24.1 mm, 25.0 mm, 24.0 mm, and 15.8 mm for concentrations of 25%, 50%, 75%, and 100%, respectively. These results indicate that the 50% concentration produced the geatest antibacterial activity, with an inhibition zone of 25.0 mm.
Co-Authors Anarato, Antonius Umbu Christianto, Heru Lalang, Adrian R. Lalang, Arvinda C. Lestarani, Dewi Maria Ulfah Pollo, Resky Alexander Raden Rosnawati W. Djuma, Agustinda