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      • KCI등재후보

        Protective Effects of N-acetylcystenine and Selenium against Doxorubicin Toxicity in Rats

        Yeo-sung Yoon,Sun-don Kim,Min-hye Lee,Heung-shik S.Lee,In-se Lee,Je-kyung Sung,Eun-sung Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

        Effects of N-acetylcysteine and Selenium against Doxorubicin Toxicity in RatsEun-sung Park, Sun-don Kim1, Min-hye Lee, Heung-shik S. Lee, In-se Lee, Je-kyung Sung and Yeo-sung Yoon*

      • KCI등재

        저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구

        성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4

        This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.

      • KCI등재

        자연휴양림 이용자 요구사항 및 만족

        서경석 ( Kyung Seok Seo ),윤성훈 ( Sung Hun Yoon ),김갑열 ( Gab Youl Kim ) 한국감정평가학회 2011 감정평가학논집 Vol.10 No.2

        The research was studied about measure how each element affect to recreational forest visitors. And I can provide the useful information for the strategic decision-making to make value-up through characterization and differentiation of recreational forest. Those who use recreational forest were studied. Survey area was divided into five regions; Kyung-gi province, Kang-won province, Chung-chong province, Kyung-sang province and Jeon-ra province. And then national and local governments, individuals were classified as operating principals. Empirical analysis were analyzed by applying the Kano model. The questionnaire was analyzed by statistical methods; for data processing, along with a test of reliability in the measuring tools, frequency analysis. Human services and nature management components of recreational forest were classified as one-dimensional quality. Most users are more concerned about these elements. Recreational forest visitors are more concerned about quality associated with software components rather than hardware components. Recreational forest visitors with high interests and a high level of satisfaction about recreational forest has more concerned about the quality.

      • 실리카흄을 흔입한 고강도 콘크리트 개발

        홍창우,김태경,김경진,김성환,김남윤,심도식,이정호,윤청호,백민경,원치문,박제선,이주형,정경일 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

        콘크리트 구조물이 대형화됨에 따라 설계단면이 증대되어 상대적으로 많은 경제적 손실을 부담하게 된다. 따라서 단면을 감소시키면서도 소요의 하중에 안전한 구조물을 건설하기 위해서는 우선적으로 구조물 건설에 기초가 되는 고품질, 고내구성의 고강도 콘크리트 개발이 절실히 요구된다 본 연구에서는 일정 시멘트비 및 혼화재 비율하에서 소요의 워커빌리티가 확보되는 고강도 콘크리트를 시간과 온도의 변화에 따라 증기 양생하여, 압축, 인장, 휨강도 뿐만 아니라 파괴특성을 실험적으로 연구하였다. 시료 제작시 시멘트 입자 사이의 공극 및 불연속 영역을 충전하여 고밀도화하기 위한 콘크리트용 혼화재로 시멘트 비표면적이 상당히 작은 초미립 분말인 실리카흄을 이용하였다. 또한 AE감수제 및 고성능 유동화제를 사용하여 혼화재의 첨가에 의하여 발생될 수 있는 워커빌리티의 감소를 방지하였다. 실험결과에 의하면 일정 양생 지속 시간하에서 온도의 증가에 따라 콘크리트의 압축, 인장 및 휨강도가 전반적으로 증가하였다. 동일하게 일정 온도하에서 양생 지속시간이 커짐에 따라 강도들이 증가됨을 알 수 있었다. 따라서 상대적으로 높은 온도와 긴 지속 양생 조건하에서 파괴에 대한 저항력이 크게 나타났다. The compressible, tensible, and flexibleresistance of the high strength concrete is analyzed by the experimentation in the present study. For the test, we cure several samples with the silica fume as a mixture being become dense the spaces between the particle of cement under the variation of both the temperature and the curing-interval. Then, the superplasticizer and the ezcon are also used to satisfy the required workability for construction. The compressible, tensible, and flexible resistances to a stress are increased as increasing the temperature and the time interval for the curing. Therefore it is concluded that the overal fractural and mechanical properties is improved by mixing the silica fume into the cement.

      • 서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

        김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

        Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

      • KCI등재

        Paraquat 중독환자의 초기검사로서 sodium dithionite를 이용한 소변내 paraquat검출의 임상적 의의

        윤갑준,임경수,이진웅,김영식,이부수,박덕우,김선만,이강현,황성오,안무업 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

        Background : Mortality from paraquat intoxication depends upon plasma paraquat concentration. To know the severity of paraquat intoxication is important for directing therapeutic modality and predicting prognosis. Sodium dithionite test for urinary paraquat provides an easy and simple method to determine the severity of paraquat intoxication in emergency department. purpose : To determine whether the result urinary paraquat test by sodium dithionite can predict outcome in patients with paraquat intoxication in emergency department. Subjects : 48 patients(male 31, female 17, mean age 37 years) who had exposure to paraquat and presented within 24 hours after exposure. Result : Thirty five patients were positive in paraquat urine test and thirteen patients were negative. Clinical manifestations were more severe in positive patients than in negatives. Complication was much more in positives than in negatives. 28 of 35 patients(80%) in positives and 2 of 13 patients(15%) in negatives died. Conclusion : Positive test for urinary paraquat is associated with high mortality and morbidity from paraquat intoxication, and qualitative test for urinary paraquat by sodium dithionite is an useful method to determine the severity of paraquat intoxication in emergency department.

      • 요오드 식품의 섭취빈도 및 기타 갑상선질환 유발인자에 관한 연구

        윤상연,이경혜,유봉옥 창원대학교 생화과학연구소 1999 생활과학연구 Vol.3 No.-

        Frequency of iodine contained food intake and symptom, risk factors of thyroid disease and demographic informations were investigated form 30 patients with various thyroid disease (hypothyroidism simple goiter and thyroid adenoma) and 30 normal control subjects. All subjects were female. Iodine contained food intake was assessed using the food frequency questionnaires with portion sizes. Family history of thyroid disease, frequency of depression. nervousness and stress. experience of abortion, appetites were higher in patients group compared to normal control group. But intake of iodine contained food and food habits did not differ between two groups. In this study, therefore, personality, stress and family history of thyroid disease affected more cause of thyroid disease than the frequency of iodine contained food intake.

      • KCI등재
      • 운동처방에 의한 써키트웨이트트레이닝이 심박수 및 근력에 미치는 효과

        윤상화,이한경 龍仁大學校 1991 용인대학교 논문집 Vol.7 No.-

        The students who had experience of the physical education 12 majors and 12 non-majors have been chosen at discretion and trained for 12 weeks so as to examine the effect of Circuit and Weight training by exercise Prescription on their heart rate and muscular strength. And the results are as follows. 1. Heart Rate in the stable Conditions reflected G-1(-2.06 beats /min) and it showed the significant of (p<0.001) at the point of G-2(-4.08 beats /min). 2. Left Grip Strength showed the significant increase of (p <0.001) rate at both G-1(+3.95kg), G-2(+3.5kg) and Right Grip Strength showed the significant increase of (p<0.001) rate at both G-1(+3.87kg), G-2(3.69kg), Back Muscule Strenght in case of (p<0.001) rate at both G-1(+l7.86kg), G-2(17.44kg).

      • 드레인 전류 잡음원만을 고려한 스케일링이 가능한 바이어스 의존 P-HEMT 잡음모델

        윤경식,이창석,맹성재,이진희,박철순 대전산업대학교 반도체기술연구소 1999 半導體技術硏究所報 Vol.1 No.-

        게이트 길이가 0.2㎛인 P-HEMT에 대하여 드레인 바이어스 전류의 변화 및 게이트 폭에 대해 스케일링이 가능한 잡음모델을 제안하였다. 본 논문에서는 S-파라미터를 정확히 예측하기 위하여 x를 제외한 intrinsic 파라미터는 offset를 도입하여 정규화 한 후 스케일링을 하였다. 드레인 포화전류에 대한 드레인 전류의 비율과 게이트 폭을 변수로 하는 소신호 모델 파라미터의 맞춤함수를 구하였다. 또한, 잡음 파라미터를 정확히 예측하기 위하여 진성저항 잡음 온도 T_g, 게이트 단 전류 잡음원 등가잡음 컨덕턴스 G_ni 드레인 단 전류 잡음원 등가잡음 컨덕턴스 G_no를 잡음 모델정수로 사용하여 그 값을 추출하여 스케일링 하였다. 잡음 온도 T_g는 드레인 전류와 게이트 폭에 거의 추출되었다. 그러므로, G_no만을 잡음 모델정수로 하는 잡음모델과 T_g, G_ni, G_no를 잡음 모델정수로 하는 잡음모델을 측정값과 비교하여 본 결과 G_no만을 갖는 잡음모델도 측정된 잡음 파라미터와 잘 일치하였다. 따라서, 모델 정수 추출이 간단한 G_no 만을 갖는 잡음모델은 게이트 폭과 바이어스 전류에 대해 스케일링이 가능한 실용적인 잡음모델임을 확인하였다. Bias-dependent noise models of 0.2㎛ gate length P-HEMT's which are scalable with gate width are proposed. To predict S-parameters of the P-HEMT's the intrinsic parameters except for x subtracted the offsets introduced in this paper are normalized to the gate width and then scaled. The small-signal model parameters are expressed as fitting functions of the drain current to I_dss ratio and gate width. In addition, to estimate accurately noise parameters the noise temperature T_g of the intrinsic resistance, the equivalent noise conductance G_ni of the gate current noise source, and the equivalent noise conductance G_no of the drain current noise source are adopted as the noise model parameters. The extracted values of T_g are nearly independent of drain current and gate width and their average is arou

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