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All Journal Klinikal Sains (Jurnal Analis Kesehatan) Community Development Journal: Jurnal Pengabdian Masyarakat
Tiara Juliar Subakti
Universitas PGRI Adi Buana Surabaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Health Professions Immunology & microbiology Public Health

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PENYULUHAN SAY NO TO BULLYING SEBAGAI PENCEGAHAN BULLYING SISWA SDN KEDUNGSUMUR 3 SIDOARJO Dwi Masithoh N.K.S; Hepy Yista Adeliya; Tiara Juliar Subakti; Andini Dwi Ayu Febrianti; Dana Marisa; Nur Laili Rakhmawati; Feny Rita Fiantika
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 4 No. 4 (2023): Volume 4 Nomor 4 Tahun 2023
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v4i4.18842

Abstract

Perundungan atau bullying merupakan tindakan atau perilaku penggunaan kekuasaan untuk menyakiti seseorang atau kelompok yang dilakukan secara fisik, verbal maupun psikologis sehingga korban merasa tertekan, trauma dan tak berdaya. Penelitian ini menggunakan metode kualitatif deskriptif. Instrument dalam penelitian ini berupa angket kuesioner yang berisi tentang pertanyaan-pertanyaan yang terkait dengan tanda-tanda bullying yang sering terjadi dalam lingkungan sekolah. Jumlah sampel yang digunakan dalam penelitian ini berjumlah 43 orang merupakan anak SDN Kedungsumur 3 yang sedang duduk di kelas 4, 5, dan 6. Hasil penelitian ini juga menunjukkan bahwa terdapat bentuk pelaku bullying berjenis laki – laki dan perempuan.
UJI AKTIVITAS ANTIOKSIDAN INFUSA SEMANGGI (Marsilea crenata C. Presl) MENGGUNAKAN METODE DPPH (1,1-Diphenyl-2-PicrylHydrazyl) Tiara Juliar Subakti; IAK Pramushinta; AS Sinulingga; SA Devi
Klinikal Sains : Jurnal Analis Kesehatan Vol. 12 No. 2 (2024): Desember
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/klinikal_sains.v12i2.4966

Abstract

Changes in lifestyle and environment now increase the risk of exposure to free radicals that cause degenerative diseases. Compounds needed to neutralize free radicals are antioxidants. One source of antioxidants is clover (Marsilea crenata C. Presl), which has previously been studied and has shown no antioxidant activity in various extraction solvents, but the clover infusion method with water solvent has not been studied, so the purpose of this study was to determine the antioxidant activity of clover infusion (Marsilea crenata C. Presl). This research method uses the DPPH method, then the antioxidant activity test of clover infusion (10% b/v) with a concentration of 100 ppm, 200 ppm, 300 ppm, 400 ppm, 500 ppm, and vitamin C as a positive control measured by a UV-Vis spectrophotometer. The absorbance value obtained at the maximum DPPH wavelength (516 nm) was used to calculate the linear regression equation of concentration and% inhibition. The results of the study obtained the IC50 value of clover infusion of 804.0 ppm and vitamin C as a positive control of 29.1 ppm. The conclusion of the study is that clover infusion shows no antioxidant activity (IC50 > 500 ppm), while vitamin C shows very strong antioxidant activity (IC50 > 50 ppm). Further research suggestions are related to the development of clover plant extraction methods and solvents (Marsilea crenata C. Presl) and antioxidant activity test methods.
Co-Authors Andini Dwi Ayu Febrianti AS Sinulingga Dana Marisa Dwi Masithoh N.K.S Feny Rita Fiantika Hepy Yista Adeliya IAK Pramushinta Nur Laili Rakhmawati SA Devi