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윤조은(Yoon, Jo-an),이문복(Lee, Moon-bok) 융합영어영문학회 2021 융합영어영문학(구.English Reading and Teaching) Vol.6 No.2
In the present study, the i-1 method is applied to young EFL learners who have a low level of English proficiency as well as reading motivation. The experiment of twin-text instruction was conducted in a community English library center, AJU Good Dream Center, in Seoul, Korea. The participants of the experiment were 13 elementary school students who enrolled in an English reading program during the winter vacation. There were 9 female students and 4 male students, and their grades ranged from 1st to 6th. The whole experiment was conducted for fourteen sessions, where each session consisted of one pretest, twelve teaching sessions with 12 pairs of text sets about the same topic in the order of ‘i-1’ level non-fiction texts to ‘i+1’ level of fiction texts, and one posttest. The findings are as follows. First, the twin-text reading instruction had positive effects on young Korean EFL learners, especially when the i-1 method was applied to expository text to pair with narrative text. Statistical analyses demonstrated that the posttest scores are higher than the pretest scores after the twin-text instruction, and the positive effects were greater for those with a lower level reading comprehension ability. Also, the students agreed that the twin-text instruction is helpful for improving their reading comprehension ability, and those with a lower level of reading comprehension ability had a more positive evaluation of the twin-text instruction. These results suggest that the i-1 method in twin-text instruction can be a good solution to reduce inequality in English education.
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윤조은(Yoon, Jo-an),이문복(Lee, Moon-bok) 한국영어독서교육학회 2021 ENGLISH READING AND TEACHING Vol.6 No.2
In the present study, the i-1 method is applied to young EFL learners who have a low level of English proficiency as well as reading motivation. The experiment of twin-text instruction was conducted in a community English library center, AJU Good Dream Center, in Seoul, Korea. The participants of the experiment were 13 elementary school students who enrolled in an English reading program during the winter vacation. There were 9 female students and 4 male students, and their grades ranged from 1st to 6th. The whole experiment was conducted for fourteen sessions, where each session consisted of one pretest, twelve teaching sessions with 12 pairs of text sets about the same topic in the order of ‘i-1’ level non-fiction texts to ‘i+1’ level of fiction texts, and one posttest. The findings are as follows. First, the twin-text reading instruction had positive effects on young Korean EFL learners, especially when the i-1 method was applied to expository text to pair with narrative text. Statistical analyses demonstrated that the posttest scores are higher than the pretest scores after the twin-text instruction, and the positive effects were greater for those with a lower level reading comprehension ability. Also, the students agreed that the twin-text instruction is helpful for improving their reading comprehension ability, and those with a lower level of reading comprehension ability had a more positive evaluation of the twin-text instruction. These results suggest that the i-1 method in twin-text instruction can be a good solution to reduce inequality in English education.
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신성빈혈에 관한 연구 : 급성신성빈혈의 실험적 고찰 Experimental Study in Acute Renal Anemia
윤조은 대한핵의학회 1969 핵의학 분자영상 Vol.3 No.2
신성빈혈의 발생기전을 관찰하기 위하여 선택적으로 신세뇨관과 계구체에 병변을 일으키는 potassium perchlomate와 Canthalidin액을 가토에 주입하여 실험적으로 신에 변화를 일으킨 후 각종 혈액 및 뇨변화를 관찰하는 동시에 (59)^Fe와 (51)^Cr 동시 표식법을 사용하여 철대사 및 적혈구수명을 측정하여 다음과 같은 성적을 얻었다. 1) 적혈군 hematocrit 및 혈색소치는 pot. perchlomate 투여군에서는 약간 감소하였고 canthalidin 투여군에선 현저한 감소를 보였으며 강상구는 pot. perchlomate 투여군에서는 불변이었으나 canthalidin 투여군에서는 증가를 보였다. 2) 혈청철치는 양군에서 불변이었고 혈청 Mg치는 pot. perchlomate 투여군에서 약간 증가하고 canthalidin 투여군에서 불변이었다. 3) 혈중잔여실소와 creatinine치는 canthalidin 투역군에서 약간 증가하고 pot. perchlomate 투여군에서 불변이었다. 4) 뇨소견을 보면 양군에서 모두 단백뇨를 보았고 pot. perchlomate 투여군에선 잠혈이 거의 없었고 canthalidin 투여군에선 현저한 잠혈을 보았다. 5) 혈장량은 양군에서 불변이었고 적혈구량과 전혈량은 pot. perchlomate 투여군에서 약간 감소하고 canthalidin 투여군에서 현저한 감소를 보였다. 6) Ferrokinetics의 성적을 보면 다음과 같다. ⅰ) 혈장철소실속도는 양군에서 연장되었으며 혈장군교대율, 적혈구철이용률, 적혈구철교대율등은 양실험군에서 모두 감소, 1일적혈구철신생율은 양실험군에서 증가, 순환적혈구철은 canthalidin 투여군에서 현저히 증가하고 pot. perchlomate 투여군에서 불변이었으며 적혈구철농도는 양실험군에서 불변이었다. ⅱ) P.I.T.R.-R.C.I.T.치는 양실험군에서 증가하였으나 canthalidin 투여군에서 약간 더 증가하였다. 강상구지수, 적혈구철교대율지수, 혈장철교대율지수 및 유효조혈지수등은 양실험군에서 모두 감소하였다. 상술한 제성적을 종합하면 pot. perchlomate 내지 canthalidin 투여로 야기된 실험적신염이 조혈능에 미치는 영향은 거의 같으며 병리조직학적 ferrokinetics상으로 무효조혈의 상대적항진을 인지할 수 있었으며 이것은 잔여실소보다 오히려 조혈촉진인자 및 기외의 불명한 원인에 의한 수내용혈의 항진이 신성빈혈의 성인기전이 된다고 생각된다. The double tracer study on erythrokinetics was carried out experimentally with radioactive iron((59)^Fe) and chromium ((51)^Cr) in rabbits. The 0.1% canthalidin solution and 1% pot. perchlomate solution was given subcutaneously to 20 rabbits respectively. 3 and 6 days after injection, the blood chemistry, urine examination, ferrokinetics and apparent half survival time of RBC were ((51)^Cr T½) determined. Following were the results: 1) Red blood cell hematocrit and hemoglobin values were moderately reduced and B.U.N. and serum creatinine values were slightly increased in the canthalidin group, while B.U.N. and serum creatinine values were within normal limits in the pot. perchlomate group. Reticulocyte values were slightly increased in the canthalidin group, while was normal range in the pot. perchlomate group. 2) Blood chemistry finding was not significant statistically in both experimental groups, but serum iron value was moderately reduced in both group. 3) Plasma volume was unchanged in both grop, but red cell volme and whole blood volume were slightly reduced in both groups. 4) Results of ferrokinetics were as follows: ⅰ) The plasma iron disappearance rate was delayed in both groups. Plasma iron turnover rate, red cell iron utilization and red cell iron turnover rate were decreased in both groups, and then red cell iron turnover rate was more decreased than plasma iron turnover rate in both groups. Circulating red cell iron was slightly increased in canthalidin group and red cell iron concentration was within normal range in both groups. ⅱ) P.I.T.R.-R.C.I.T. value moderately increased in the canthalidin group and slightly increased in the pot. perchlomate group. Reticulocyte index, red cell iron turnover index, plasma iron turnover index and effective erythropoiesis index were wholely reduced in both groups. ⅲ) The red cell life span was slightly shortened in the canthalidin group while was within normal range in pot. perchlomate group. The pathologic finding of renal biopsy of the canthalidin group shows a selectidamage in glomerulus, while shows almost normal range or slight damage in tubules. And that of the pot. perchlomate group shows a selective damage in tubules with slight damage of glomerulus. $quot;
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