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      • KCI등재

        고등학생들의 생물학습에서 개념도와 순환학습을 통합한 수업의 효과

        정영란 ( Jeong Yeong Lan ),이은파 ( Lee Eun Pa ) 한국과학교육학회 2003 한국과학교육학회지 Vol.23 No.6

        Although many studies have investigated the effectiveness of concept mapping and the learning cycle, in Korea none have explored the effectiveness of concept mapping and the loaming cycle combined. This study explored the effectiveness of concept mapping, the learning cycle, and a combination of concept mapping/learning cycle(CL) in high school biology class. Students` science achievement, the science related attitudes and scientific inquiry ability was measured. The results indicated that concept mapping, the teaming cycle, and CL treatment were significantly differently from the traditional one in science achievement(p<.05). However, the three treatments were not significantly different from each other. No significant difference exists among different learnings in high and average-ability students. But, concept mapping was the most effective in low-ability students. For the students` scientific inquiry ability, CL and learning cycle were more effective than concept mapping and traditional learning. No significant difference exists among different learnings in high-ability students. CL and learning cycle were more effective than concept mapping and traditional learning in average and low-ability students. For the students` science rotated attitudes, concept mapping, the learning cycle, and CL were more effective than the traditional learning. But, there was no significant difference among these three groups.

      • KCI등재후보

        차나무의 품종, 부위, 채취시기에 따른 향기생성 효소의 활성과 향기배당체의 함량

        재천(Jae-Cheon Jeong),최정연(Jeong-Youn Choi),최문희(Moon-Hui Choi),영란(Young-Lan Son),조정용(Jeong-Yong Cho),김선재(Seon-Jae Kim),문제학(Jae-Hak Moon),박근형(Keun-Hyung Park),마승진(Seung-Jin Ma) 한국차학회 2012 한국차학회지 Vol.18 No.4

        Enzymatic activities and amounts of aromatic precursors, which are related with aroma formation in fermanted tea, were indirectly measured in vanious cultivars (Korean native cultivar, Taicha No.12, Yabukita), harvest time (May, July, September), and parts (aged leaves, young leaves, stem) by means of crude enzyme assay. Enzyme activities related to aroma formation in stems and young leaves were higher than those in aged leaves. Activities in parts harvested in September and July were higher than in those harvested in May. Total amounts of aromatic precursors were higher in young leaves than those in aged leaves from each cultivar. Amounts of precursors of geraniol and methyl salicylate were much higher in each part of Taicha No.12 than those of Yabukita, although much greater amounts of benzyl alcohol and 2-phenylethanol were liberated from Yabukita.

      • SSCISCIESCOPUSKCI등재
      • KCI등재후보

        고감도 방사면역측정법에 의한 TSH 측정의 임상적 의의

        정영란(Young Ran Jeong),김미나(Mi Na Kim),김성운(Sung Woon Kim),양인명(In Myung Yang),김진우(Jin Woo Kim),김영설(Young Seol Kim),최영길(Young Kil Choi) 대한내과학회 1988 대한내과학회지 Vol.35 No.1

        N/A A clinical study was undertaken for the evaluation of the difference and correlation between the determination of TSH by classical RIA and highly sensitive RIA (Immunoradiometric assay; IRMA) and to determine whether the use of IRMA to determine TSH can detect patients without remission earlier than classical RIA. We measured the T3, T4, TSH by RIA, TBII by radioreceptor assay and TSH by IR~MA of 21 control subjects and 27 hyperthyroid patients. Another 5 hyperthyroid patients who had been treated with an antithyroid regimen over 6 months were also analysed by the above parameters after discontinuation of the antithyroid drugs. The results were as follows; 1) TSH concentration measured by IRMA (1.1±0.6μu/ml) was significantly lower than that measured by RIA ~(2.2±0.6μu/ml) and it had a good correlation withthat of RIA (r=0.72, p<0.005). 2) IRMA revealed a good delineation between hyperthyroid patients (0.1±0.09μu/ml) and euthyroid individuals (1.1±0.6μu/ml, p<0.005) 3) IRMA could reveal earlier than RIA that a patient had not been in remission.

      • KCI등재후보

        Graves 병에서 각종 자가항체들의 상호관계

        정영란(Young Ran Jeong),이병기(Byung Ki Lee),김성운(Sung Woon Kim),양인명(In Myung Yang),김진우(Jin Woo Kim),김영설(Young Seol Kim),최영길(Young Kil Choi) 대한내과학회 1988 대한내과학회지 Vol.35 No.5

        N/A This study was performed to evaluate whether there is any correlation among autoantibodies of hyperthyroid patients, if the thyroid function is different between hyperthyroid groups with or without autoantibody, and how many patients have anti-double stranded DNA antibody. We measured the following in 36 untreated patients with Graves disease: T₃, T₄ TSH, antithyroglobulin antibody (TGAb), antimicrosomal antibody (MCAb), and anti double stranded DNA antibody (dsDNAAb) by respective radioimmunoassay (RIA) and thyroid receptor antibody (TBII) by radioreceptor assay. The results were as follows: 1) All patients had at least one or more autoantibodies and there was no correlation among the various autoantibodies. 2) Thyroid function and the frequency of other autoantibodies did not differ between the positive and negative groups of each autoantibody. 3) Positive anti-double stranded DNA antibody was not presented in this study

      • SCOPUSKCI등재

        일부 한약재의 동종항원에 대한 세포증식 및 살세포반응 억제효과

        정영란(Young-Ran Jeong),하미혜(Mee-Hye Ha),김성호(Sung-Ho Kim),조성기(Sung-Kee Jo),변명우(Myung-Woo Byun),조현욱(Hyun-Wook Cho),서권일(Kwon-Il Seo),이성태(Sung-Tae Yee) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.6

        본 실험에서는 동양에서 예로부터 민간요법이나 한방에서 주로 많이 쓰여지고 있는 8가지 종류의 한약재에 대해서 면역억제제로써 사용 가능성을 실험하였다. 그 결과 당귀, 산사, 어성초, 오가피, 황기의 추출물은 동종항원에 반응하는 순수분리 T세포의 증식을 농도 의존적으로 억제시켰다. 또한 이들 T세포의 증식에 있어서 필수적인 IL-2를 포함한 cytokine 즉, IL-2, IL-4, IL-10, IFN-γ의 생산량은 대조군에 비해 실험군에서 유의한 차이가 없었고 특히 T세포 증식에 필수적인 IL-2의 생산량의 변화가 거의 없었다. 이는 한약재에 의한 T세포의 증식억제 효과가 T세포증식에 필수적인 IL-2의 생산량을 억제하기 때문에 일어나는 결과가 아님을 알 수 있었다. 그리고 T세포의 살세포작용 억제를 직접적으로 측정하기 위하여 세포내 LDH의 양을 조사한 결과 모든 대조군에서 50%이상의 살세포작용 억제가 일어났고, 그중 특히 오가피와 황기에서는 100% 살세포작용 억제가 일어났다. 따라서 본 실험에 사용된 당귀, 산사, 어성초, 오가피, 황기 등의 5가지 약재가 부작용 없는 면역억제로써 사용 가능성이 높은 것으로 생각된다. In this experiment, we showed the immunosuppressive effects of herbal plant extracts on the alloantigen reactive proliferation and cytotoxicity. The extracts of Angelica gigas, Crataegus pinnatifida, Houttuynia cordata, Acanthopanax sessiliflorum and Astragalus membranaceus markedly suppressed on the pro- liferation of primary T cells stimulated with allogeneic spleen cells in a dose-dependent manner. The production of IL-2, IFN-γ, IL-4 and IL-10 in the alloreactive primary T cells showed no significant difference in the presence or absence of herbal plants extracts. Also the result of mixed lymphocyte reaction (MLR)-induced cytotoxic T lymphocyte (CTL) showed what is above a certain point 50% inhibition. Specially, the extracts of Acanthopanax sessiliflorum and Astragalus membranaceus com- pletely suppressed the killing activity of CTL. Theses results suggest that the extracts of 5 herbal plants can be used as immunosuppressive agents.

      • KCI등재
      • KCI등재후보

        메밀의 잎과 꽃을 이용한 차의 제조 및 이화학적 특성

        재천(Jae-Cheon Jeong),영란(Young-Lan Son),이기앙(Gi-Ang Lee),이승태(Seung-Tae Lee),이경애(Gyeong-Ae Lee),이준안(Jun-An Lee),박은경(Eun-Gyeong Park),마승진(Seung-Jin Ma) 한국차학회 2014 한국차학회지 Vol.20 No.2

        본 연구에서는 산업적 활용도가 낮은 메밀의 잎, 꽃 등의 부위를 이용하여 부가가치가 높은 기능성차로 개발하기 위하여 먼저, 메밀 식물체의 각 부위(꽃, 어린잎, 성숙잎)별항산화효과 및 flavonoid계 성분의 함량을 조사하였다. 그 결과, 총페놀 화합물 함량, rutin 및 quercetin 함량 모두 메밀꽃 > 성숙잎 > 어린잎의 순으로 높은 함량을 보였으며 항산화활성은 성숙잎과 꽃에서 높은 활성을 보여 건강증진효능이 예상되는 대용차 소재로 메밀꽃과 잎을 혼용해서 사용하는 것이 유리하다고 판단되었다. 또한, 메밀꽃과 잎을 이용하여 증제차, 덖음차, 반발효차, 발효차로 제조한 후, 이화학적 특성 및 항산화효과를 분석하였다. 그 결과, 총페놀 화합물 함량은 반발효 > 증제> 덖음 > 발효의 순이었으며 rutin 함량은 증제 > 반발효 > 덖음 > 발효의 순이었고 quercetin 함량은 발효 > 증제 > 반발효 > 덖음의 순이었고 환원당 함량은 반발효 > 덖음 > 발효 > 증제의 순이었으며 항산화활성은 반발효차가 가장 높게 나타났으나 그 외 덖음, 증제, 발효차에서는 큰 차이가 나타나지 않았다. 한편, 제조된 메밀잎차의 관능평가에서는 발효차와 반발효차가 색과 향 부분에서 좋은 평가를 얻었다. 이상의 연구 결과, 메밀의 꽃과 잎은 기능성 대용차의 소재로 충분한 가치가 있는 소재로 판단되었으며 기존의 종자 위주의 메밀의 이용 범주를 현재 이용도가 극히 낮은 꽃과 잎으로 넓히는 효과를 기대할 수 있다고 생각되었다. 또한, 메밀의 꽃과 잎을 이용하여 대용차로 개발하는 경우, 반발효 방식의 가공법이 바람직하다고 판단되었다. The physiochemical properties of tea (steamed tea, roasted tea, semi-fermented tea and fermented tea) prepared from buckwheat (Fagopyrum esculentum) leaves and flowers which showed high contents of polyphenols including rutin and quercetin and free radical scavenging activity, with different manufacturing processes were examined to develop a functional tea to increase its industrial utilization. As a result, the contents of total phenol compounds in these teas were in the following order: semi-fermented tea > steamed tea > roasted tea > fermented tea. The rutin and quercetin contents were found to be in the following order: steamed tea > semi-fermented tea > roasted tea > fermented tea > steamed tea > semi-fermented tea > roasted tea, respectively. The free radical scavenging activity was found to be high in semi-fermented tea and did not show a significant difference in the other teas. The sensory evaluations revealed the semi-fermented tea and the fermented tea to have higher flavor and color scores than non-fermented tea such as steamed tea and roasted tea. These results suggest that semi-fermented tea manufacturing is a good process for developing a commercial product from the leaves and flowers of buckwheat.

      • KCI등재

        알코올중독자녀에 대한 중학생 음주예방 프로그램의 효과

        이정숙 ( Chung Sook Lee ),김수진 ( Su Jin Kim ),영란 ( Young Ran Kweon ),최봉실 ( Bong Sil Chai ),순복 ( Soon Bok Jeong ) 한국정신간호학회 2004 정신간호학회지 Vol.13 No.2

        N/A Purpose: This study was to examine the effect of the middle-school drinking-prevention program for children of alcoholics and suggest a nursing intervention program designed to help self-esteem, coping strategies, and to emotional/behavior problem for children of alcoholism. Method: This study was an equivalent control group pre-test and post-test design in quasi-experimental research. The total subjects of this study were 36 children of alcoholics(Exp.1), 41 children of social-drinker(Exp.2) & 40 children of social-drinker(Con.) residing at M-middle School in Gwangju, 117 assigned for the experimental and control group. The experimental group 1 & 2 received the middle-school drinking-prevention program, but the control group did not receive treatment. The data were collected from September, 1, 2003 to December 31, and analysed by χ²-test, ANCOVA, ANOVA, Using the SPSS 11.0 Program. Result: In the distribution of middle school students by Parents` drinking problem, social drinker group was 243(87.1%), Alcohol abuse was 29(10.4%) and alcohol dependent was 7(2.5%) among 279 students. There wasn`t significant difference in self-esteem (F=1.275, p= 0.283) by the group. But children of alcoholics was improved in self-esteem. There was a significant difference in coping strategies (F=3.499, p=0.034) by the group(F=6.165, p= 0.003)? There was a significant difference in emotional/behavior problem (F=3.499, p=0.034) by the group. Conclusion: This middle-school drinking-prevention program will be a more effective improvement of self-esteem & coping strategies and prevention of emotional/behavior problem for children of alcoholics.

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