Abstract

In this study, interviews were conducted with teachers of media literacy to determine the needs of media literacy teaching in the classroom. As a result, we see that teachers need in-service training for classes in media literacy; the media literacy lesson is adequate in terms of content but inadequate as an activity. Students indicated significant changes in their perceptions of media after taking these lessons. A «Media Literacy Level Scale» and a «Media Literacy Attitude were applied to determine students’ level and attitude. The information on students was obtained through the «Private Information Form». As a result, a positive, low-level and significant relationship was found between the students’ attitude levels on media literacy lessons and their media literacy levels. The study’s conclusion is that there is no significant difference between the media literacy classes taken by the primary school second grade students and their attitudes and levels on media literacy. Also, no significant difference was found between the educational levels of the parents of these second graders and their attitudes and levels on media literacy. However, there was a significant difference between the students’ daily newspaper reading habits and the frequency of listening to the radio and their attitudes on media literacy classes and media literacy levels.

Abstract

Nowadays, mineral incrustations are one of the most frequent problems in the petroleum industry; they deteriorate the production systems, causing pressure losses and, consequently, the decrease of hydrocarbon production. Based on this problem, this research was conducted with the purpose of evaluate the efficiency of a natural scale inhibitor based on the leaf mucilage of the cayenne plant (Hibiscus rosa sinensis) in synthetic and production water samples. In order to do this, the physical-chemical characterization on the water samples was carried out, as well as the mucilage previously extracted from the plant. Subsequently, the natural inhibitor was formulated and characterized at three different concentrations (2, 4 and 6 % m /V) and the efficiency of the product was evaluated in both water samples, considering three (3) different doses (55, 100 and 500 ppm) following the guidelines of the NACE standard TM0347-2007, with the result that the inhibitor of 2 % m/V was the most efficient at its highest dose. In addition, the commercial inhibitor from Halliburton Company was used for comparative purposes in a statistical analysis that indicated the absence of a significant statistical difference between the product at 2 % m / V and the commercial inhibitor.