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홍정주 ( Jung Joo Hong ),박신규 ( Shin Gyu Park ),박영관 ( Youn Kwan Park ),김중욱 ( Jung Wook Kim ),정원우 ( Won Woo Chung ) 경북대학교 과학교육연구소 2010 科學敎育硏究誌 Vol.34 No.1
이 연구의 목적은 고등학생들을 대상으로 흙에 대한 흥미도와 이해도 및 그 특징을 알아보기 위한 것이다. 연구대상은 대구지역 고등학생(교) 남학생 72명과 여학생 82명이었다. 설문지는 학생들의 흥미도 8문항과 이해도 10문항이 개발 되었다. 흙 개념에 대한 학생들의 흥미도는 남학생의 경우 5점 중 3.2점(64.9%)이고 여학생의 경우 5점 중 3.2점(64.6%)을 보이고 있다. 한편 학생들의 이해도는 평균 47.4%이며, 남학생과 여학생의 이해도는 각각 48.2%와 46.6%로 남학생이 여학생보다 이해도가 조금 높게 나타났다. 그리고 학생들은 흙 개념을 가시적 측면에서 이해하고 있으며 지질학적 관점이라기보다 생물학적 관점으로 접근하고 있다. 학생들은 흙에 대한 개념을 지질학적 관점에서 광물 및 암석 개념과 관련지어 생각하지 못했다. 흙 개념에 대한 흥미도와 이해도의 상관계수는r=.170(p<.05)로서 매우 약하게 나타났다. The purpose of this study was to investigate the high school students` interests and and perceptions about the soil concepts. The data were obtained from 72 boys and 82 girls at a high school in Daegu area. The questionnaires were developed 8 questions for students` interest and 10 questions for students` understanding. The results of this study were as follows. In the examination of students` interest on the soil concepts, boys showed 3.2point(64.9%) out of 5point and girls showed 3.2point(64.6%) out of 5 point. Furthermore, a percentage of correct answers for understanding on the soil concepts was 47.4%. In detail, Boys had 48.2% and girls had 46.6%, boys showed higher understanding about soil concepts than girls. And students understood soil concepts by a visible side, to approach the soil concepts from a biological point of view, rather than a geologic one. Also high school students didn`t think soil concepts to consist of minerals and rocks from a geologic point of view. Correlation between interest and understanding on the soil concepts was very weak by showing r=.170(p<.05)
국내 애완견에서 Helicobacter spp.의 감염
박종환,홍정주,석승혁,조선아,박재학 한국수의병리학회 2001 한국수의병리학회지 Vol.5 No.1
Prevalence of Helicobacter infection in pet dogs and positive relations between the presence of Helicobacter spp. and gastritis were studied. Twenty-one dogs, which died of various disease, were referred from three animal hospitals and necropsied. Upon histopathological examination, Helicobacter-like organisms (HLO) were observed only in the gastric mucosa of 5 (23.5%) out of the 21 stomachs. The bacteria mainly colonized in the mucus, gastric pits, and the lumen of gastric glands. Regardless of HLO infection, there was mild to moderate lymphocytic infiltration in fundic and pyloric mucosa. Average gastritis scores of the group infected with HLO were 1.250±0.214 and 1.833±0.167 in the fundic and pyloric mucosa, whereas those of uninfected group were 1.000±0.165 and 1.625±0.239, respectively. Accordingly, we concluded that no association exists between HLO infection and gastritis.