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고등학교 화학 I 과정 “물” 단원에서 학업성취도 평가문항의 내용타당도 분석
백성혜,이은준,김정수,송영욱,김용진,정정인,한재영 이화여자대학교 사범대학 교과교육연구소 2008 교과교육학연구 Vol.12 No.1
학교 교육에서 평가는 교육목표 달성 확인 및 교수 계획 수립에 중요한 역할을 한다. 따라서 학생들의 학업성취도 평가는 높은 내용타당도를 가지고 있어야 한다. 즉, 학업성취도 문항은 수업목표에 비추어 적절하고 학습한 내용을 포괄할 수 있어야 한다. 학교 현장에서 평가 문항의 타당도는매우 중요한 반면, 실제 학교에서 사용되는 고등학교 화학 과목의 평가 문항들이 어느 정도 내용타당도를 가지고 있는지 조사되는 경우가 거의 없다. 따라서 이 연구에서는 학교현장에서 실시되는화학 학업성취도 평가문항이 행동차원과 내용차원에서 어느 정도의 내용 타당도를 가지는지 분석하고자 하였다. 이를 위한 연구의 대상은 제7차 교육과정에 의하여 개발된 동일한 화학Ⅰ 교과서를 교재로 사용하고 있는 5개 학교의 ‘물’ 단원에 대한 1학기 중간고사 평가문항이었다. 내용타당도 분석을 위한 과정은 첫째, 교과서와 교사용지도서에서 34개의 수업목표를 내용차원과 행동차원으로 이원 분류하였다. 둘째, 5개 고등학교의 평가문항에서 121개의 평가문항을 행동차원과 내용차원으로 이원 분류하였다. 셋째, 행동차원과 내용차원별로 각각 수업목표와 평가목표의 비율차 검증을 하였다. 연구 결과, 5개 학교에서 사용된 학업성취도 문항은 행동차원에서의 내용타당도는낮았지만 내용차원에서의 내용타당도는 높은 것으로 나타났다. 이는 고등학교에서 실시하는 학업성취도 평가에 있어서 행동차원의 내용타당도를 높이는 노력이 좀 더 필요하다는 것을 시사한다. 특히 행동차원 중 분석력, 종합력, 평가력 등 고등정신기능을 기르는 평가 문항의 개발에 노력을기울여야 한다. 이 연구를 통해, 평가 문항 제작에 대한 교사들의 전문성을 높이기 위해 다양한연수나 교육 프로그램이 개발될 필요가 있음을 알 수 있다. In school education, the evaluation plays an important role for the accomplishment ofeducational goal and for the planing of education. Thus, the achievement evaluation itemshould have high validity. The achievement evaluation items should appropriate for theeducational goal and include all the learning contents. Although the validity of achievementevaluation items is very important, little research was performed on how much the evaluationitems of high school chemistry course really have the content validity. Therefore, in this study we analyzed the validity of the chemistry achievement evaluation items used in schools in thedimension of behavior and content. For this, 5 different high schools were selected that used the same publisher's chemistry I textbook, and the middle semester achievement evaluation items were gathered. First, 34 instructional objectives were classified into the behavior domain and the content domain from the 'water' chapter in the textbook and the teacher's guide. Second, 121 evaluation items were classified into the behavior domain and the content domain. Third, the analysis of the ratio difference method were performed between the instructional objectives and the evaluation objectives. From the results, it was found that content validities of the behavior domain were low, but those of the content domain were high. These results implies that more effort should be paid to raise content validities of the behavior domain in achievement evaluation of high schools. Especially, the test items should be developed on the high level thinking skill such as analysis, synthesis, and evaluation. This study tells it is necessary to develop in-service teacher education program to raise the professionality of teachers on the evaluation items.
症例(증례) : 관상동맥 스텐트로 치료한 베체트병에 동반된 급성 심근경색증 1예
정혜진 ( Hey Jin Jeong ),김세인 ( Se In Kim ),김소리 ( So Ri Kim ),이규선 ( Kyu Sun Lee ),고은영 ( Eun Young Ko ),김성훈 ( Seong Hun Kim ),김성식 ( Sung Sik Kim ),임호영 ( Ho Young Yhim ),민경훈 ( Kyung Hoon Min ),이상일 ( Sang Il 전북대학교 의과학연구소 2004 全北醫大論文集 Vol.28 No.1
베체트병은 반복되는 아프타성 구강궤양과 성기궤양 및 포도막염과 같은 눈의 반복적인 염증성 병변을 특징으로 하는 전신 질환이다. 베체트병에 동반된 심근경색은 매우 드물어서 소수의 증례만이 보고 되고 있다. 저자들은 베체트병 환자에서 발생한 심근 경색증 1예를 경험하였기에 보고하는 바이다. Behcet`s disease is a systemic disease of unknown cause, belonging to vasculitis pathologically. It rarely involves the coronary arteries. Coronary arteritis may lead to myocardial infarction and death, and the management of coronary lesions due to Behcet`s disease has been described only in a small number of patients. We experienced a -36-year-old man with Behcet`s disease who presented with acute coronary syndrome, and underwent balloon angioplasty and coronary stent implantation. The reduction of the coronary stenosis by balloon angioplasty induced immediate relief of chest pain. He has been still in reltively good health without chest pain during the 24 months of follow-up.
Disorders of Small and Large Intestine : A Rare Case Of Undifferentiated Carcinoma Of The Rectum
( Yu Jeong Hwang ),( Seung Ok Lee ),( Su Jin Oh ),( Seung Ryong Lee ),( Hey Jin Jeong ),( Seong Hun Kim ),( In Hee Kim ),( Sang Wook Kim ),( Soo Teik Lee ),( Dae Ghon Kim ) 대한소화기학회 2007 SIDDS Vol.9 No.-
Introduction: Carcinoma of the colon and rectum are rare in children and under the age of 40 years. Most carcinoma of the colon and rectum are mucinous adenocarcinoma. However we experience a case of undifferentiated carcinoma of the rectum. So, we report such a rare case of undifferentiated carcinoma of the rectum in a 13-year-old girl. Case: An 13-year-old girl was admitted to our hospital because of abdominal pain for 1 month. She visited primary care 1 month ago because of abdominal pain and was diagnosed acute appendicitis. So, she was performed appendectomy. But she has persistent abdominal pain and fever after appendectomy. Palpation revealed direct tenderness on left upper quadrant at admission. The laboratory tests showed leukocytosis (11.2×10(3)/ μL) and elevation of CA125 (52.4 U/mL). Abdominal CT scan revealed mind rectal wall thickening and small enlargements of several perirectal lymph nodes. Pelvic cavity MRI showed same findings. Sigmoidoscopy revealed large ulcerative mass in mid rectum (10 cm from anal verge). We could not passed upper rectum due to mass. We performed biopsy at the ulcerative mass and it revealed undifferentiated tumor, most likely sarcoma, but not confirmed. We performed an ultra lower anterior resection under impression of rectal malignancy. The tumor was 13×8.6 cm and gross finding showed a central necrosis and inflammatory exudates. Pathological findings showed the tumor consisted of large abnormal cells without gland formation and mucin production. The tumor invaded the subserosa. Immunohistochemical study showed positive in cytokeratin, CEA, vimentin and focal positive in CD99, EMA, however, desmin, S-100, C-kit, actin, CD34, CD56, CD30 and LCA were negative. Therefore, we diagnosed this case to be an undifferentiated carcinoma. Conclusion: We report such a rare case of undifferentiated carcinoma of the rectum in a child.
증례 : 다발성근염과 만성 B형 간염에 병발한 혼합 간세포-담관상피암종 1예
정혜진 ( Hey Jin Jeong ),김성훈 ( Seong Hun Kim ),김세인 ( Se In Kim ),김인희 ( In Hee Kim ),문우성 ( Woo Sung Moon ),이승옥 ( Seung Ok Lee ),김대곤 ( Dae Ghon Kim ) 대한내과학회 2007 대한내과학회지 Vol.72 No.1
다발성근염은 림프구가 골격근에 침윤하여 비화농성 염증반응을 일으켜 골격근의 손상을 초래하는 원인불명의 자가면역 질환으로, 근위부근육의 대칭적인 근무력이 서서히 진행되는 임상적인 특징을 갖는다. 아직까지 뚜렷한 발병 원인이 규명되지 않은 질환으로 최근 자가면역설과 바이러스 감염설이 가장 유력한 가설로 생각되어지고 있다. 그러나 아직까지 만성간질환과 동반된 경우는 발병률이 매우 낮으며 국내에서 원발성 간암이 함께 병발한 사례는 보고된 바가 없었다. 저자는 최근 만성 B형 간염과 다발성근염으로 치료중인 환자에서 혼합 간세포-담도상피암종이 동시에 병발한 환자 1예를 경험하였기에 보고하는 바이다. Polymyositis is characterized by symmetrical proximal muscle weakness, nonsuppurative inflammation of striated skeletal muscle, an elevation of muscle enzymes, and abnormality of electromyographical changes, but its pathogenesis is not clear. In recent years, there has been an increased awareness of the association of malignant tumors with this disorder. Still, the relationship between polymyositis and a malignant tumor remain obscure. Some researchers have suggested that the cause of polymyositis may be due to an autoimmune response induced by aviral infection. However, a chronic hepatitis B virus infection associated with polymyositis is very rare. We present in this report a rare case of combined hepatocellular-cholangiocarcinoma associated with polymyositis and chronic hepatitis B virus infection. (Korean J Med 72:79-84, 2007)
Astrogliosis Is a Possible Player in Preventing Delayed Neuronal Death
Jeong, Hey-Kyeong,Ji, Kyung-Min,Min, Kyoung-Jin,Choi, Insup,Choi, Dong-Joo,Jou, Ilo,Joe, Eun-Hye Korean Society for Molecular and Cellular Biology 2014 Molecules and cells Vol.37 No.4
Mitigating secondary delayed neuronal injury has been a therapeutic strategy for minimizing neurological symptoms after several types of brain injury. Interestingly, secondary neuronal loss appeared to be closely related to functional loss and/or death of astrocytes. In the brain damage induced by agonists of two glutamate receptors, N-ethyl-D-aspartic acid (NMDA) and kainic acid (KA), NMDA induced neuronal death within 3 h, but did not increase further thereafter. However, in the KA-injected brain, neuronal death was not obviously detectable even at injection sites at 3 h, but extensively increased to encompass the entire hemisphere at 7 days. Brain inflammation, a possible cause of secondary neuronal damage, showed little differences between the two models. Importantly, however, astrocyte behavior was completely different. In the NMDA-injected cortex, the loss of glial fibrillary acidic protein-expressing ($GFAP^+$) astrocytes was confined to the injection site until 7 days after the injection, and astrocytes around the damage sites showed extensive gliosis and appeared to isolate the damage sites. In contrast, in the KA-injected brain, $GFAP^+$ astrocytes, like neurons, slowly, but progressively, disappeared across the entire hemisphere. Other markers of astrocytes, including $S100{\beta}$, glutamate transporter EAAT2, the potassium channel Kir4.1 and glutamine synthase, showed patterns similar to that of GFAP in both NMDA- and KA-injected cortexes. More importantly, astrocyte disappearance and/or functional loss preceded neuronal death in the KA-injected brain. Taken together, these results suggest that loss of astrocyte support to neurons may be a critical cause of delayed neuronal death in the injured brain.
X-선 형광 분석방법을 이용한 숙지황의 무기원소 함량분석과 지리적 특성 규명
배혜리 ( Hey Ree Bae ),이시경 ( Si Kyung Lee ),황인재 ( In Jae Whang ),강정미 ( Jeong Mi Kang ),이진호 ( Jin Ho Lee ),김정한 ( Jeong Han Kim ) 한국응용생명화학회 2015 Journal of Applied Biological Chemistry (J. Appl. Vol.58 No.4
한국산 및 중국산 숙지황(Dried Rehmannia Radix Preparat)의 지리적 원산지에 따른 특성을 알아보기 위하여 X-선 형광분석기(X-ray fluorescence spectrometry)를 이용하여 미량 원소 함량을 측정하였다. 143종의 시료에서 검출된 K, P, S, Cl, Si, Al, Fe, Sn 등 35종의 원소를 정준판별분석한 결과 평균 판별 정확도는 92.3%로 나타났으며, 유의수준(p=)은 0.0001 미만으로 나타났다. 통계분석에 사용하는 원소수를 35종에서 8종, 3종으로 줄였을 때 판별정확도는 각각 88.1, 84.6%로 감소하는 것으로 나타났다. 중국산내에서의 판별정확도는 94.6-96.0%였으나 한국산내에서의 판별정확도는 72.5-89.9%로 나타났다. Dried Rehmannia Radix Preparat, produced in different geographic origins of Korea and China, were investigated for the trace element contents using X-ray fluorescence spectrometry. When the estimated data for 35 kind of elements including K, P, S, Cl, Si, Al, Fe, Sn, etc on 143 samples were analyzed by canonical discrimination technique, the average classification correct rate was 92.3% and the significance was less than 0.0001. In case of reducing the number of elements for statistic analysis from 35 to 8 and to 3, the correct rates were also reduced to 88.1% and to 84.6%. The correct rate for Chinese samples ranged from 94.6-96.0%, while those for Korean ranged from 72.5-89.9%.