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Abstrak :

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ABSTRACT
Anaerobic technology has become widely accepted by the environmental industry as a cost-effective alternative to the conventional aerobic process. In addition, with the intrinsic advantages of energy saving, reduced sludge yield, and production of biofuel, anaerobic process will be the favored green treatment technology for sustainable environment in years to come.Written by 40 renowned experts from 13 countries/regions, this book consists of 18 chapters compiling state-of-the-art information on new developments in various aspects of anaerobic technology. These include development of new types of reactors, uses of molecular techniques for microbial studies and mathematical modeling, productions of bio-hydrogen by fermentation and microbial electrolysis cell, as well as broadening applications to the treatment of municipal wastewater, effluents from chemical industry and agricultural wastes with high lignocellulose content.

Abstrak :
ABSTRAK
Various efforts have been made to prevent adolescents from the drug use, despite their knowledge and skill to refuse drugs have never been evaluated. This study was aimed to describe the adolescents knowledge and skill to refuse drugs and their relation to the characteristics. This was an analytic study conducted in 300 students at the seventh grade aged 12 to 15 years old in two cities in the Special Region of Yogyakarta Province. Variables studied were adolescents knowledge, skill to refuse drugs, and their characteristics. Data were collected using a selfreported questionnaire, then analyzed using Pearson correlation test and Spearman rho, with 95% level of significance. The findings showed that the average score of adolescents knowledge of drugs was 66.39+17.48 and the score of skills to refuse drugs was 55.62+16.49. There was a significant relation between knowledge and skills (p = 0.05). There was no significant relation between the young adolescents characteristics (age and sex) with their knowledge and skills to refuse the drug offered. This study concludes that the skill to refuse drugs tends to increase as the adolescents get older, and no significant relation between knowledge and skill to refuse drugs offered by sex and ages.