http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
현미경 사용 관찰 활동에서의 스마트폰 활용이 학생들의 식물 세포 관찰에 미치는 영향
윤민지,전상학 한국생물교육학회 2020 생물교육 Vol.48 No.3
With the universalization of smart devices, there has been an active movement towards utilizing these devices in education settings. Especially, smartphones that most students already have create new possibilities for teaching and learning in science education as they come with various built-in sensors and devices. However, there is lack of research that focuses on how smartphones can influence students’ activities in science classes. Therefore, this study aims to examine the effects of utilizing smartphones on students’ observation activities in microscope using observational classes. As a result of analysis based on students’ drawings of plant cells, a prominent fact was identified. The additional use of smartphones as a tool for observation holds positive effects on students’ observations compared to the sole use of microscopes. Moreover, the control and experimental groups were further divided into three subgroups according to the students’ level of detail of their plant cell drawings. The results from the control group showed that the repeated use of microscopes was beneficial only for the students whose level of observation was low, and had a negative effect on students whose level of observation was high. On the other hand, the additional use of smartphones during the second session had a significant effect on improving students’ level of plant cell observation regardless of their previous observational levels. Thus this study shows that the simple utilization of smartphones as an additional tool for observation leads to effective improvements in the learning environment of microscope using observational classes.
연골피부 이개전방 유리피판 및 혈관 간치이식술을 이용한 코재건례
윤민지,은석찬,김민호,백롱민 대한두개안면성형외과학회 2011 Archives of Craniofacial Surgery Vol.12 No.2
Purpose: Reconstruction of a full thickness defect of the nose is a difficult task for plastic surgeons because the anatomical characteristic, shape, and function of the nose all need to be taken into consideration. Most often, a local flap or a composite graft is used, but for a large defect, reconstruction using free flaps is the most ideal method. In free flap reconstruction, the chondrocutaneous preauricular area can be a suitable donor site. We performed a chondrocutaneous preauricular free flap with an interpositional vascular graft for reconstruction of a nasal ala. Methods: A 46 year-old male presented to the hospital with a right alar deformity induced by a dog bite. During the surgery, the existing scar tissue was removed and thereby a newly formed full thickness defect was reconstructed using the chondrocutaneous preauricular free flap with an interpositional vascular graft harvested from the descending branch of the lateral femoral circumflex vessel between the facial and superficial temporal vessels of the free flap. Results: The flap survived without flap loss and showed symmetry in its overall shape, contour, texture, and color. The patient was satisfied with the results and the surgery yielded no additional scars at the nasolabial fold area. Conclusion: The chondrocutaneous preauricular free flap is a valuable method in reconstruction of full thickness defects of the nose, and using the descending branch of the lateral femoral circumflex vessel as the interpositional vascular graft at the anastomotic site produces reliable results. (J Korean Cleft Palate Craniofac Assoc 12: 111, 2011)