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All Journal Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Jurnal Pharmacia Mandala Waluya
Tommy, Muhammad
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Education Medicine & Pharmacology

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PENGARUH STRATEGI PEMBELAJARAN SEPAK BOLA VERBAL TERHADAP AKTIVITAS BELAJAR PPKn SISWA KELAS VIII DI SMP NEGERI 14 PEKANBARU Tommy, Muhammad; Gimin, Gimin; Haryono, Haryono
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 5: Edisi 2 Juli-Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract : This research was motivated by the low learning activities of PPKn students of class VIII in Pekanbaru State Middle School 14. The formulation of the research problem is "Is there influence on the use of Verbal Soccer learning strategies on the eighth grade students' PPKn learning activities in Pekanbaru State Middle School 14?". This study was to determine the effect of the use of Verbal Soccer learning strategies on the learning activities of PPKn students of class VIII in Pekanbaru State Middle School 14. This research was conducted at Pekanbaru State Middle School 14 in August to September 2018. This research is an experimental quantitative descriptive study, the population in this study is class VIII Pekanbaru State Middle School 14. The sample in this study was taken based on the "Random Sampling" technique. Where the class taken as a sample is class VIII 3 (experimental class) given the Verbal Football learning strategy, and class VIII 5 (control class) are students who are given the conventional method. Then the data analysis using the homogeneity test and the "t" test. Based on the results of the study, there is an influence of learning activities between students who use the Verbal Football learning strategy and conventional methods in Pekanbaru State Middle School 14 (t_ (count = 3.11)> t_ (table = 1.99)). Where there is an increase in the average learning activities of the experimental class PPKn from 81.44% to 81.98% and the average learning activity of the control class PPKn from 52.06% to 69.97%. . Thus the hypothesis which states that there is an influence on the use of Verbal Soccer learning strategies on the learning activities of PPKn students of class VIII in Pekanbaru State Middle School 14, is acceptable.Keywords: Verbal Football, Activity
Perbandingan Kadar Total Fenolik dan Flavonoid Ekstrak Etanol Daun, batang, dan Akar Kirinyuh (Chromolaena odorata L.) dengan Menggunakan Metode Spektrofotometri UV-Vis Tommy, Muhammad; Putra Pratama, Nofran; Purnomo Sari, Kurnia Rahayu
Jurnal Pharmacia Mandala Waluya Vol. 1 No. 5 (2022): Jurnal Pharmacia Mandala Waluya
Publisher : Prodi Farmasi Universitas Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54883/jpmw.v1i5.48

Abstract

Kirinyuh merupakan gulma yang hidup di daerah tropis maupun subtropis. Tanaman tersebut memiliki kandungan senyawa bioaktif utama seperti alkaloid, saponin, fenolik, tanin, steroid dan flavonoid. Penelitian sebelumnya dilakukan uji eksperimen terkait kandungan senyawa bioaktif pada bagian daunnya saja, sedangkan pada bagian batang dan akar masih sangat sedikit. Tujuan penelitian yaitu mengetahui kadar total fenolik dan flavonoid dalam ekstrak etanol daun, batang, dan akar Kirinyuh serta mengetahui bagian mana yang memiliki kandungan senyawa bioaktif terbesar. Metode penelitian ini dilakukan secara kuantitatif menggunakan metode eksperimental di laboratorium. Masing-masing bagian Kirinyuh dimaserasi menggunakan pelarut etanol 70%. Hasil maserasi yang didapatkan yaitu berupa filtrat, lalu diuapkan sampai menjadi ekstrak kental. Perhitungan jumlah kadar total fenolik dan flavonoid dilakukan dengan mensubstitusikan nilai absorbansi sampel ke dalam hasil regresi kurva baku asam galat dan kuersetin yang diperoleh menggunakan metode spektrofotometri UV-Vis. Hasil nilai kadar total fenolik dihitung %b/b sebagai nilai GAE dan flavonoid dihitung %b/b sebagai nilai QE ekstrak etanol Kirinyuh dengan metode spektrofotometri UV-Vis adalah daun sebesar 44,970 ± 3,725 %b/b dan 38,306 ± 0,195 %b/b, batang sebesar 20,403 ± 4,002 %b/b dan 3,959 ± 1,891%b/b, dan akar 21,381 ± 28,824 %b/b dan 3,289 ± 3,943 %b/b. Nilai kadar total fenolik dan flavonoid terbanyak berada pada bagian daun sebesar 44,970 ± 3,725 %b/b dan 38,306 ± 0,195 %b/b.
Co-Authors Gimin Gimin Haryono Haryono Putra Pratama, Nofran Sari, Kurnia Rahayu Purnomo