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김승영 ( Seung Young Kim ),임형준 ( Hyung Joon Yim ),안재홍 ( Jae Hong Ahn ),김정한 ( Jeong Han Kim ),김진남 ( Jin Nam Kim ),윤익 ( Ik Yoon ),김동일 ( Dong Il Kim ),이홍식 ( Hong Sik Lee ),이상우 ( Sang Woo Lee ),최재현 ( Jai Hyu 대한간학회 2009 Clinical and Molecular Hepatology(대한간학회지) Vol.15 No.4
건강에 대한 관심 증가와 함께 대체요법의 사용이 늘어나면서 각종 식물제제를 포함한 건강보조식품으로 인한 부작용들이 나타나고 있다. 저자들은 칡즙을 복용한 후 발생한 독성간염 두 예를 경험하여 보고한다. 환자들은 구역, 구토 등으로 내원하였으며, 입원 후 혈액생화학검사, 혈청검사 및 간조직검사를 시행받았고 RUCAM 점수체계를 기준으로 독성간염으로 진단되었다. 이들은 보존적치료 후 검사실 소견 및 순간탄성도검사 등에서 빠른 호전을 보였다. 칡즙의 복용으로도 독성간염이 생길 수 있다는 점을 염두에 두고, 건강보조식품에 대한 경각심을 가져야겠다. Herbal remedies and health foods are widely used, and their side effects have been reported. We describe two cases of symptomatic toxic hepatitis that developed in middle-aged women after ingesting arrowroot juice. The clinical manifestations were nausea, vomiting, and jaundice. The diagnosis of toxic hepatitis was made using the Roussel Uclaf Causality Assessment Method score on the basis of the patient`s history and laboratory data. After supportive care, the patients showed rapid improvements of clinical symptoms, laboratory findings, and liver stiffness. Clinicians should be aware that the consumption of arrowroot juice can cause toxic hepatitis. (Korean J Hepatol 2009;15:504-509)
비대면 온라인 수업 효과에 영향을 미치는 온라인 수업 구성요소: 대학교 이론 수업 수강생을 중심으로
김동일 ( Kim Dong Il ),임정은 ( Lim Jung Eun ),우예영 ( Woo Ye Young ),한다솜 ( Han Da Som ),이진우 ( Lee Jin Woo ),연준모 ( Yun Joon Mo ) 충남대학교 교육연구소 2021 교육연구논총 Vol.42 No.2
본 연구는 비대면 온라인 수업에 영향을 미치는 변인들을 온라인 수업의 구성요소로 나누어 각 변인들의 영향력을 규명하는 데 목적이 있다. 연구 대상은 2020년 2학기 비대면 온라인 이론 수업을 수강한 국내 K 대학교 학생 507명이었으며, 수집된 자료는 다중회귀분석 및 위계적 회귀분석을 통해 분석하였다. 연구 결과 첫째, 교수자 수업 운영 변인과 학생참여 변인은 모두 비대면 온라인 수업 효과성에 정적인 영향을 미치는 것으로 나타났으며, 기술 및 환경 변인의 경우 ‘시스템 안정성’, ‘사용 편의성’을 제외한 변인들이 비대면 온라인 수업 효과성에 정적인 영향을 미치는 것으로 나타났다. 둘째, 온라인 수업의 구성요소 변인들의 비대면 온라인 수업 효과성에 대한 설명력은 총 54.2%인 것으로 나타났으며, 교수자 수업 운영 변인 중 ‘상호소통 원활(β=0.260)’, 기술 및 환경 변인 중 ‘동영상 품질 적합성(β=0.215)’, 학생 참여 변인 중 ‘학습충실도(β=0.166)’ 순으로 영향력이 큰 것으로 나타났다. 본 연구는 효과적인 온라인 수업에 영향을 미치는 변인들을 탐색하고 각 변인간의 상대적인 영향력을 밝힌 의의가 있으며, 본 연구 결과는 향후 비대면 온라인 수업 설계의 방향성을 결정하는 데에 있어 기초자료로 활용될 수 있을 것으로 기대한다. The purpose of the present study is to examine the influence of each variables related to the effectiveness of online learning. The participants of this study were 507 students at K University in Korea, who took online theory classes in the second semester of 2020. Multiple linear regression analyses and hierarchical multiple linear regression analyses were conducted to verify the effect of different variables. The findings of the study are as follows. First, all the instructor’s management and student’s participation variables have positive effects on the effectiveness of online learning. With the exception of system stability and ease of use, sub-factors of technology and environment significantly predicted the effectiveness of online learning. Second, technology and environment, instructor, and student variables accounted for 54.2% of the variance in the effectiveness of non-face-to-face learning. The most influential variables were “mutual communication smoothness”(β=0.260) among the instructor variables, “video quality suitability”(β=0.215) among the technical and environmental variables, and “learning faithfulness”(β=0.166) among the learner student variables. This study is significant because it explore variables influencing effective online classes and reveal the relative influence of each variable, and the results of this study can be used as basic data in determining the future direction of online class design.
김민영,김동일,신정훈,Jin Woo Kim 대한미용성형외과학회 2023 Archives of Aesthetic Plastic Surgery Vol.29 No.1
Background Proper nasal tip projection and rotation are essential for an aesthetically pleasing nose. However, East Asians usually have thicker skin and underdeveloped nasal cartilage compared to Caucasians. Thus, techniques such as the septal extension graft, columellar strut graft, and L-shaped alloplastic implants have been introduced for additional nasal tip support and projection. However, no consensus exists regarding the optimal method. Methods A hybrid columellar strut made of an osteochondral graft recombined with the nasal crest of the maxilla and conchal cartilage was devised. In a cadaveric study, changes due to an external bending force of the hybrid strut and costal cartilage in the same dimension were measured. In a comparative study, we divided 20 subjects into two groups according to the material used for the columellar strut graft: a hybrid columellar strut (experimental group) and a double-layered conchal columellar strut (control group). Preoperative, 1-month postoperative, and 1-year postoperative anthropometric measurements were compared between groups. Results In the cadaveric study, the hybrid columellar strut showed superior mechanical strength. In the comparative study, the average 1-year postoperative change of the columellar labial angle was significantly smaller in the experimental group (–0.7°±1.16° vs. 2.2°±1.32°, P=0.015). The hybrid columellar strut showed superior postoperative nasal tip stability. Conclusions We devised a new hybrid columellar strut and confirmed its superior mechanical firmness and stability. Considering the suggested indications and contraindications, the hybrid columellar strut graft can be a new modality for tip plasty in East Asian rhinoplasty that can provide sufficient long-term nasal tip stability.
샘암종과 소세포암종이 혼재하는 원발 위암에서 소세포암종만이 간전이를 일으킨 1예
장진수 ( Jin Su Jang ),임형준 ( Hyung Joon Yim ),이범재 ( Beom Jae Lee ),김세윤 ( Se Yune Kim ),김동일 ( Dong Il Kim ),이홍식 ( Hong Sik Lee ),이상우 ( Sang Woo Lee ),최재현 ( Jai Hyun Choi ) 대한소화기학회 2007 대한소화기학회지 Vol.50 No.3
Primary small cell carcinoma (SCC) of stomach is a rare and highly aggressive malignancy with extremely poor prognosis. We report a 71-year-old man with upper abdominal pain diagnosed as single hepatic metastasis of SCC from mixed SCC and adenocarcinoma of the stomach. An endoscopic examination showed the presence of Borrmann type 2 gastric cancer, 2 cm in size on the lesser curvature of antrum. An abdominal CT scan revealed a huge dumbbell shaped mass with peripheral arterial enhancement and central low density in left lobe of the liver. Endoscopic biopsies showed solid proliferation of small, monotonous tumor cells with hyperchromatic nuclei and scanty cytoplasm. The neoplastic cells were positive for immunostaining with anti-chromogranin and anti-synaptophysin. There were also other neoplastic cells with gland formation being positive for anti- cytokeratin. On the basis of these findings, we made a final diagnosis of mixed SCC and adenocarcinoma of the stomach. In addition, we also confirmed hepatic metastasis of SCC through the microscopic finding and immunostaining of tissues of liver mass. Conclusively, we report a case of hepatic metastasis of SCC only from mixed SCC adenocarcinoma of the stomach. (Korean J Gastroenterol 2007;50:193-198)