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박유정 ( Yu Jeong Park ),고혜정 ( Hye Jung Koh ) 한국특수아동학회 2014 특수아동교육연구 Vol.16 No.4
Powerful evidence demonstrating parents` and teachers` impact on students` reading achievement has led to an intensive focus on identifying levers for improving reading outcomes of students with learning disabilities. Previous research has begun to indicate that special education teachers` instructional quality and parent invovlement and educational level may be one such lever, even after controlling for student demographics and other school related variables. The purpose of this investigation was to examine the relationships among parent- and teacher-related variables and students with learning disabilities` word recognition and reading comprehension achievements. Data from the Special Education Elementary Longitudinal Study (SEELS) was analyzed using structural equation modeling in order to test the hypotheses on causal relationships among latent and observed parent, teacher, and student variables. Results revealed that parents` educational level positively influenced on parent involvement, which, in turn, influenced their children`s academic engagement. Teachers` self-efficacy and instructional quality, which, in turn, influenced their students` reading outcomes. Instructional grouping based on the students` academic abilities highly influenced on word recognition; whereas children`s academic engagement on reading comprehension. Implications to special education field in Korea and future research were discussed.
질소 상압플라즈마를 이용한 TiO<sub>2</sub> 박막의 표면개질 및 광활성 평가
임경택,김경환,박준,김경석,박유정,송선정,김종호,조동련,Lim, Gyeong-Taek,Kim, Kyung Hwan,Park, Jun,Kim, Kyoung Seok,Park, Yu Jeoung,Song, Sun-Jung,Kim, Jong-Ho,Cho, Dong Lyun 한국공업화학회 2009 공업화학 Vol.20 No.4
상압플라즈마 공정을 이용하여 $TiO_2$ 박막의 표면을 개질하고 광촉매 활성을 평가하였다. $TiO_2$ 박막은 $TiO_2$ 졸-겔 용액에서 유리판에 dip-coating법으로 코팅한 후 소성 온도와 소성 시간을 변화시켜 가면서 제조하였다. 표면 개질에 사용된 플라즈마는 질소 플라즈마였으며, 방전전력, 처리시간 등의 공정변수를 변화시키면서 실험을 수행하였다. 광촉매 활성은 UV-A와 형광등 하에서의 메틸렌 블루 분해효율을 바탕으로 평가하였다. XPS 분석 결과, 박막의 표면에 소량의 질소가 도핑되었음을 알 수 있었으며, 광촉매 효율은 UV-A와 형광등 하에서 모두 증가하였고, 특히 형광등 하에서 좀 더 증가하였다. $TiO_2$ thin films were surface-modified with atmospheric plasma and their photocatalytic activities were evaluated. The films were deposited on glass plates by dip-coating in a $TiO_2$ sol-gel solution and sintered at various temperatures for various times. Nitrogen plasma was used for the modification and the experiments were carried out varying operational parameters such as discharge power and treatment time. Photocatalytic activity was evaluated based on the degradation efficiency of methylene blue (MB) under irradiation of UV-A and fluorescent light. According to XPS analysis, a little amount of nitrogen was found to be doped in the film surface after the modification. As a result, photocatalytic activity increased under irradiation of UV-A and fluorescent light, especially fluorescent light.
생태통로 내부 식생구조에 대한 지표성 딱정벌레류(딱정벌레목: 딱정벌레과)의 반응
정종국 ( Jong Kook Jung ),박유정 ( Yu Jeong Park ),이선경 ( Sun Kyung Lee ),이효석 ( Hyo Seok Lee ),박영균 ( Young Gyun Park ),이준호 ( Joon Ho Lee ),최태영 ( Tae Young Choi ),우동걸 ( Dong Gul Woo ) 한국환경생태학회 2016 한국환경생태학회지 Vol.30 No.2
최근 서식처 파편화에 의한 생물다양성 감소를 막고 서식처간 연결성을 증진시키기 위해 건설되는 생태통로의수가 증가하고 있지만, 생태통로 내부의 식재 및 식생 유지·관리에 대한 구체적인 가이드라인과 내부 식생 구조 차이에 따른 생물 이동 영향에 대한 정보는 부족한 실정이다. 따라서 본 연구에서는 지표성 딱정벌레류를 이용하여 동일한 농업-산림 경관에서 육교형 생태통로 상부 식생이 나지 및 초본으로 이루어진 생태통로(나지/초본형)와 관목림이우거진 생태통로(관목형)에 대한 비교 연구를 수행하였다. 이를 위해 2015년 4월 하순부터 9월 초순까지 생태통로 및 인접한 산림을 따라 함정트랩을 설치하여 33종 4,207개체의 지표성 딱정벌레류를 채집하였다. 지표성 딱정벌레류의 우점종과 지점별 개체수 및 종수는 생태통로 내부의 식생이 복잡한 관목형이 나지/초본형에 비해 더 높은 경향이었으며, 종 구성은 나지/초본형 생태통로의 종 구성은 인근 산림 지역 및 관목형 생태통로에 비해 다른 특징을 보였다. 이와유사하게 생태통로 내부의 식생 관리 여부는 토양습도와 교목층 울폐도에 영향을 주었고, pH, 초본층 피도 및 교목층울폐도는 함정트랩이 설치된 위치에 따라서도 유의미한 차이를 보였다. 결론적으로 생태통로 내부의 식생이 복잡해지면 산림에 서식하는 지표성 딱정벌레류의 산림 패치간 이동 역시 증가할 것으로 판단된다. 따라서 생태통로의 생태적기능을 향상시키기 위해서는 통로 가장자리에는 관목 또는 교목을 식재하여 은신처 및 이동통로로 제공하고, 중앙부에는 대형 포유동물이 이동하기 용이한 나지 형태의 통로를 제공하는 형태로 개선될 필요가 있을 것이다. Korea has put in significant efforts to increase the number of wildlife crossings between fragmented habitats to prevent loss of biodiversity and to encourage the habitat connectivity in Korea. However, there is a lack of biological data on the effect of vegetation structure in these wildlife crossings and guidelines for design and management of wildlife crossing structures in Korea. Therefore, we selected ground beetle assemblages as model organisms to compare the effect of vegetation structure in wildlife crossings, i.e. bare ground- and shrub-type corridors, in agro-forested landscapes. For this study, 4,207 ground beetles belonging to 33 species were collected through pitfall trapping along the northern forest.corridor.southern forest transects from late April to early September in 2015. Dominant species, abundance, and species richness of ground beetles were significantly higher in the shrub-type corridors than the bare ground-type corridors. Also, the species composition of bare ground-type corridor was significantly different compared to the other habitats such as shrub-type corridor and forests. Similarly, environmental variables were also influenced by vegetation management regimes or trap locations. Collectively, our study clearly indicates that the movement of forest associated ground beetles between forest patches can increase as the vegetation in wildlife crossings becomes complex. Although further studies are needed to verify this, there are indications that the current wildlife crossings that comply with the guidelines may be unfriendly to the movement of ground dwelling arthropods as well as ground beetles. To enhance the ecological function of wildlife crossings, the guidelines need to be rectified as follows: 1) Shrubs or trees should be planted along the corridor verges to provide refuge or movement paths for small mammals and ground dwelling arthropods, and 2) Open spaces should be provided in the middle of the corridors to be used as a path for the movement of large mammals.
고혜정 ( Koh Hye-jung ),김병건 ( Kim Byung-keon ),박유정 ( Park Yu-jeong ) 한국특수아동학회 2021 특수아동교육연구 Vol.23 No.4
Purpose: In spite of legal and institutional arrangements for increased training opportunities and employment of teachers with disabilities, their effectiveness and specific applications are often judged to be insufficient. Therefore, the needs for in-depth research to solve this problem are growing. This study was conducted with the aim of examining what topics and methods were adopted in studies on teachers with disabilities and providing fundamental data drawn from the examination that suggested practical supports plans. Method: This study analyzed 30 academic studies related to teachers with disabilities in order to examine research trends on teachers with disabilities. First, the studies related to teachers with disabilities were analyzed in terms of publication status by year and journal. Second, the studies were analyzed in terms of research subjects. Third, the studies were analyzed in terms of research methods. Fourth, in-depth analysis was conducted on the topic of each study related to teachers with disabilities. Results: It was found that the publication status of studies related to teachers with disabilities by year was insignificant and that the Korean Journal of Visual Impairment was the journal that published the majority of studies. As for research subjects, a lot of the studies were conducted on teachers with disabilities, visually impaired teachers and secondary school teachers. In terms of the trend by topic, the studies related to teachers with disabilities mainly addressed the difficulties experienced by teachers with disabilities in adapting to the teaching profession during their service and improvement measures thereof. Conclusion: This study suggested that research on teachers with disabilities needed to be conducted vigorously on the entire career of teachers with disabilities, from the training stage to appointment and placement, and in-service stage, and that specific support should be provided at each stage. Finally, the limitations of this study and ideas for future studies were discussed.