• Journal of the Korean Society of Earth Science Education
• /
• v.16 no.1
• /
• pp.103-132
• /
• 2023

This study developed a risk society education program for undergraduate students to help them understand the epistemological uncertainty of risk caused by COVID-19. And it was applied to science-related classes of undergraduate students, and the purpose was to examine the degree of understanding and thoughts of undergraduate students about the risk society through science writing. As a result, it was found that the degree of understanding of the risk society was very high in all participating students regardless of their majors in science, engineering, humanities and social sciences. In addition, it was analyzed that the risk society education program helped undergraduate students to resolve the epistemological uncertainty of the risk of COVID-19 and to have an attitude to overcome the the difficult mind due to the COVID-19 distancing. The results of this study suggest that risk society education is necessary for future generations living in an era of risk of climate change and pandemic that exceeds the prediction range of science and technology in science education.

• Journal of Korean Society of Forest Science
• /
• v.89 no.5
• /
• pp.630-633
• /
• 2000

The damage by the black-tipped sawfly, Acantholyda posticalis posticalis, has been increasing all over the area of Korean pine(Pinus koraiensis)stands in Korean peninsula. This study was conducted to provide basic information for the management and control of this pest by investigating the feeding quantity of pine needles during the larval stage. The results were summarized as follows : The total needles damaged in the larval stage of the black-tipped sawfly were 9,584mm in length on an average and those of female and male were 11,774mm and 7,394mm, respectively. The total length ingested actually was 7,797mm and it was equivalent to 81.4% of the total length damaged. Early larval stage showed a little feeding and it was equivalent to 17% of total quantity. On the contrary, the feeding quantity in late larval stages of fourth and fifth instars amounted to 83%. The number of the frass excreted per larva was about 1,160, and the difference between male and female was not showed, whereas it showed remarkable difference among larval instars.