Tri Murtiati
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The Effect of Narcotics, Psychotropic, and Addictive Substance Counseling toward SMK Students Knowledge about Drug Abuse Dwiatri Harjanti Uswatun Hasanah; Tri Murtiati; Sri Rahayu
Biosfer: Jurnal Pendidikan Biologi Vol 7 No 2 (2014): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.884 KB) | DOI: 10.21009/biosferjpb.7-2.2

Abstract

Understanding about narcotics, psychotropics, and addictive substances is beneficial to prevent drugs abuse among students. One of the ways to provide knowledge about this topic may be done by counseling. This research was aimed to know the effect of narcotics, psychotropics, and addictive substances counseling toward students’ knowledge about drug abuse. The study was conducted in SMK Negeri 34 Jakarta during May 2012 using an experimental method. Simulation method was performed in experimental class whether speech method was applied in control group. This research design was pretest-posttest control group using multiple choice knowledge test instrument. Samples were selected by simple random sampling. Normality testing of the Kolmogorov Smirnov test and homogeneity testing of t-test showed a normal distribution and homogenous data. Meanwhile, hypothesis testing done by t-test at α = 0.05 result was t table < t count < ttable at -3.23 < -0.67 < 2.03, meaning that there was no effect of narcotics, psychotropics, and addictive substances counseling toward students knowledge about drugs abuse.
Pengaruh Paparan Hipoksia terhadap Aktivitas Antioksidan Katalase dan Kadar Malondialdehid (MDA) pada Jaringan Hati Tikus Rini Puspitaningrum; Amanda Putri Lestari; Tri Murtiati
Bioma Vol 10 No 2 (2014): Bioma
Publisher : Biologi UNJ Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.329 KB) | DOI: 10.21009/Bioma10(2).5

Abstract

Abstract content in the tissue. Hypoxia can make the formation of free radicals or reactive oxygen species (ROS) which reactive to cell membrane. Body will avoid free radicals by producing antioxidant, such as catalase enzyme. The reaction between ROS and cell membrane will form malondialdehyde (MDA). Liver is the main location of catalase. This research was aimed to know the influence of hypoxia exposure toward catalase antioxidant activity and MDA content in the rat liver tissue. This research used experiment method with fully randomized design. Based on one way Anova test (p≤0.01), it was shown that there had no average difference on catalase activity and MDA content toward length hypoxia exposure. The conclusion of this research was no influence of hypoxia exposure toward catalase activity and MDA content in rat liver tissue. Key words: catalase antioxidant activity, hypoxia, malondialdehyde (MDA) content,rat liver tissue