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11. Science Teachers Taking Their First Steps toward Teaching Socioscientific Issues through Collaborative Action Research

Author

Lee, Hyunju and Yang, Jung-eun

Abstract

This study presents two science teachers, Catherine and Jennifer, who took their first steps toward teaching socioscientific issues through collaborative action research. The teachers participated in the collaborative action research project because they wanted to address socioscientific issues but had limited experience in teaching them. The research questions included what kinds of challenges the teachers encountered when implementing socioscientific issues and to what extent they resolved the challenging issues as participating in collaborative action research. The primary data source consisted of audiotapes of regular group meetings containing information on the process of constructing and implementing lesson plans and reflecting on their teaching of socioscientific issues. We also collected classroom videotapes of the teachers' instruction and audiotapes of students' small group discussions and their worksheets. The findings indicated that when addressing socioscientific issues in the classes, the teachers encountered several challenging issues. We categorized them into four: (1) restructuring classroom dynamics and culture, (2) scaffolding students' engagement in socioscientific issues, (3) dealing with values, and (4) finding their niche in schools. However, this study showed that collaborative action research could be a framework for helping the teachers to overcome such challenges and have successful experiences of teaching socioscientific issues. These experiences became good motivation, to gradually develop their understanding of teaching socioscientific issues and instructional strategies for integrating the knowledge and skills that they had accumulated over the years.

Published
2019
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48. The Protective Effect of Edible Bird's Nest against the Immune‐senescence Process of UVB‐irradiated Hairless Mice.

Author

Park, SulWoong, Kim, InSook Sarah, Park, Sang‐Yong, Seo, Seul A., Yang, Jung‐Eun, and Hwang, Eunson

Subjects
BIRD nests, SKIN aging, MICE, FILAGGRIN, MAST cells, ELASTIN
Abstract

Edible bird's nest (EBN) is a nutritious food with many beneficial effects, including protecting cells against oxidation and infection due to wounds, bacteria or viruses. EBN has shown antiaging, anti‐inflammatory and wound‐healing properties in skin cells. Here, we investigated whether EBN has protective effects against photoaging, inflammation and immune‐senescence in hairless mice treated with UVB irradiation. The skin thickness was lower in mice on an EBN diet than in mice treated with UVB alone. The level of hydration was significantly increased, while the index of transepidermal water loss decreased, in groups on the EBN diet. EBN also reduced erythema index in UVB‐irradiated mice. At the molecular level, skin elasticity and antiaging are associated with high expression of elastin, collagen and filaggrin and low expression of the membrane metalloproteinases, MMP‐1 and MMP‐2. Inflammatory markers such as interleukins, IL‐1β and IL‐6, and TNF‐α decreased significantly in the EBN groups. Caspase‐3, an important factor in the apoptotic pathway and in congenital and adaptive immune responses, decreased in the EBN groups. Moreover, EBN diminished the overexpression of immunoglobulin E and elevated mast cell counts in UVB‐irradiated mice. Overall, these findings suggest that EBN protects skin against aging and alleviates inflammation in UVB‐irradiated hairless mice. [ABSTRACT FROM AUTHOR]

Published
2022
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