• Journal of Animal Science and Technology
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• 제47권1호
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• pp.83-90
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• 2005

ACE-inhibitory peptides derived from goat's whey hydrolyzed by various proteolytic enzymes were separated and purified for antihypertension materials. The highest ACE-inhibitory activity of goat's whey hydrolysates was 85.5 % by pepsin for 72 hrs. Also the highest ACE-inhibitory activity of goat's whey hydrolysates was F-4 by pepsin for 72 hrs by Sephadex G-25 gel chromatograms. F-4e and F-4ed from F-4 by RP-HPLC to first and second purification were the highest in ACE-inhibitory activity, respectively. The most abundant amino acid was leucine(I 8.54 %) in F-4ed of ACE-inhibitory peptides after second purification. Amino acid sequence of F-4ed of ACE-inhibitory peptides showed Leu-Lys-Asp-Tyr-Gly-GlyVal- Ser-Leu and Leu-Gly-Asp-Gly-Ala-Gly- Asp-Val-Ala-Phe. $IC_{50}$ calibrated in peptic hydrolysates(72 hrs), F-4, F-4e and F-4ed from goat's whey hydrolysates by pepsin for 72 hrs were 33.93, 28.75, 11.74 and 1.09 mg/ml, respectively. From the results of this experiment, goat's whey hydrolysate by pepsin was shown to have ACE-inhibitory activity.

• 한국콘텐츠학회논문지
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• 제22권9호
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• pp.678-688
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• 2022

본 연구는 '재난 불평등' 상황에 노출되기 쉬운 지체 장애인의 일상생활제한이 위급 시 행동에 미치는 직접적인 영향을 살펴보고, 이 관계에서 우울과 주거환경의 매개효과를 통합적으로 검증하기 위한 목적으로 수행되었다. 이를 위해 장애인삶 패널조사 2차년도(2019) 패널 중 만 20세 이상의 지체 장애인 총 803명을 대상으로 분석하였다. 분석결과, 첫째, 지체 장애인의 일상생활제한은 우울에 정(+)적인 효과, 주거환경과 위급 시 행동에 각각 부(-)적인 효과가 나타났고, 우울은 위급 시 행동에 부(-)적인 효과, 주거환경은 위급 시 행동에 정(+)적 효과가 나타났다. 둘째, 지체 장애인의 일상생활제한과 위급 시 행동 사이에 우울과 주거환경은 매개 효과가 있는 것으로 나타났다. 즉, 지체 장애인의 일상생활제한이 위급 시 행동에 미치는 영향에 대하여 주거환경과 우울이 중요한 역할을 할 수 있는 변인임을 시사한다. 분석결과를 토대로 연구의 함의를 제안하였다.

• 대한토목학회논문집
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• 제32권5D호
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• pp.453-461
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• 2012

장비나 설비의 경제성 분석을 위해 실시되는 수명분석의 목적은 현 자산의 미래 폐기 지표를 예측하여, 예측자료에 의거한 여러 경영전략을 수립하여 활용하는 데 있다. 본 연구에서는 1) 생존곡선을 사용하여 건설장비의 평균수명, 기대수명, 예측수명을 구하는 방법과 생존곡선에 의한 수명결정방법을 분석하여 제시하였고 2) 수익과 비용에 의한 수명결정 모델을 제안하고 이를 검증해 보았다. 연구 결과, 동일한 장비라고 하더라도 비용, 수익, 초기투자비에 따라 경제수명이 다르게 나타날 수 있음을 알게 되었다. 본 연구에서 제안한 건설장비 수명결정 모델은, 장비의 개별적 경영상황을 반영할 수 있는 수명 결정 모델로서, 회사경영합리화를 위해 활용될 수 있을 것이다.

• 대한가정학회지
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• 제41권3호
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• pp.131-146
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• 2003

The purpose of this study is to explore what makes the elderly women resilient in old age and how they reconstruct their later lives. This study used life histories extracted from tape-recorded interviews of 13 elderly women and analyzed key issues focused on how to adapt in old age. Main results are following: First, emerging themes to maintain life satisfaction in old age are related to both informants' inner and outer life worlds; subjective reinterpretation of life, feeling rich, family, social activities, overcoming social stigma. With supporting and supplementing one another, these five dimensions are important contributors to better later life. Second, where my informants search for meaning of life in old age is the critical clue of understanding the later life styles. Some of them are still searching meaning of life in roles as a ‘mother’, while others are finding their sense of worth outside the family or in themselves. These results show that the elderly are interacting with themselves and their surroundings in adapting to old age and different tie styles according to different sources of life satisfaction manifest the changes among the elderly and Korean society.

• Human Ecology Research
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• 제53권3호
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• pp.331-339
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• 2015

This study investigates the effects of parental abuse and neglect on school life adjustment mediated by self-esteem in adolescents. Participants consisted of 2,259 middle school students from the Korean Children and Youth Panel Study 2012. Secondary questionnaire data on parental abuse and neglect, self-esteem, and school life adjustment are used for this study. Data were analyzed using descriptive analysis, Cronbach's a, Pearson's correlation analysis and multiple regression analysis. Baron and Kenny's method determined the mediation effect. SPSS ver 18.0 was adopted. The results were as follows. First, parental abuse and neglect were negatively correlated with the adolescent school life adjustment; however self-esteem was positively correlated with adolescent school life adjustment. Second, the results of the regression analysis revealed that adolescent school life adjustment was influenced both directly and indirectly; parental abuse had a direct effect on adolescents' school life adjustment and also had an indirect effect on mediated by self-esteem. Parental neglect had a direct effect on adolescent school life adjustment and had an indirect effect on adolescent school life adjustment mediated by self-esteem. The results indicated that self-esteem plays a crucial variable in the relationship of parental abuse and the school life adjustment. Also, self-esteem plays a crucial variable in the relationship between parental neglect and school life adjustment.

• 한국유기농업학회지
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• 제26권1호
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• pp.43-56
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• 2018

The objectives of this study are to analyze life satisfaction between agricultural and non-agricultural households using 1~4th KReIS (Korean retirement and income study) data, to investigate whether to affect on life satisfaction according to the employment industry of householder. and to examine various determinants of life satisfaction between agricultural and non-agricultural households. The summary of analysis results is as follows. First, life satisfaction is influenced by economic value. Also it is examined that both physical and mental health have a significant effect for life satisfaction. Especially, it is analyzed that the effect of mental health is larger than one of physical health for life satisfaction. In addition, it is investigated that life satisfaction of single-person households is higher than two or more person households. Second, there was significant difference between agricultural and non-agricultural households in life satisfaction. It was proved that life satisfaction of agricultural households is higher than non-agricultural ones. As a result, it is confirmed that life satisfaction is influenced by industrial characteristic and mental health rather than another determinants.

• 한국컴퓨터정보학회논문지
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• 제24권6호
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• pp.175-182
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• 2019

This study aims to identify causal variables by examining the mutual influences of community consciousness and life satisfaction. We used some data of KCYPS. A longitudinal study of 1952 adolescents selected as a sample was conducted using the Aautoregressive crossover delay model. The results of this study are as follows: First, it showed that life satisfaction is consistently affecting the later life satisfaction with the passage of time. Second, community consciousness showed that the previous community consciousness has a constant influence on the subsequent community consciousness as time passes. Third, the effect of previous life satisfaction on community consciousness was significant. Therefore, the cross-delay effect of life satisfaction on community awareness was stable with time. In other words, life satisfaction level was a causal variable that takes precedence over community consciousness, and the higher the life satisfaction of the previous time, the higher the level of community consciousness in the future. Fourth, the cross-delay effect of community consciousness on life satisfaction was not significant because community consciousness at previous time had no meaningful effect on life satisfaction at later time, so consciousness of community at previous time affects life satisfaction. This study provided some implications basing on this results.

• 동의신경정신과학회지
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• 제19권1호
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• pp.55-70
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• 2008

Objective : The aim of this study is to investigate and measure the Test-anxiety of college students in OO Oriental Medicine by using Korea's version-Test Anxiey Inventory(K-TAI-K), State-Trait Anxiety Inventory(STAI), Symptom Check List-90-Revision(SCL-90-R), etc. Methods : We studied 181 students who being at OO College of Oriental Medicine in second semester, 2007 We used some questionaries like K-TAI-K, STAI, SCL-90-R , College Life Satisfacaion, Life Event Questionnaire. Results and Conclusions : 1.141 persons(83,43%) of students feel the largest test anxiety before test. 18 persons(9.94%) of students feel the largest test anxiety after test. 2.The 1st grade students of preparatory course and 4th grade students of regular course have the lowest score in State Anxiety Inventory and obsessive-compulsive of SCL-90-R. The 2nd grade students of regular course have the lowest score in State Anxiety Inventory and obsessive-compulsive of SCL-90-R 3. Students who failed in test one time have the lowest score , and who failed in test more than two times have the highest score in K-TAl-K Students who failed one time in grade promotion more than two times showed high score in second K-TAI-K. 4. The higher grade, the lower score in College Life Satisfaction. The scores of College Life Satisfaction have negative correlations with those of K-TAI-K, STAI SCL-90-R except phobic anxiety, 5. The scores of Life Event Questionnaire have positive correlations with those of K-TAI-K, STAI and SCL-90-R except phobic anxiety. 6. The scores of K-TAl-K have positive correlations with those of STAI, SCL-90-R, College Life Satisfaction and Life Event Questionnaire. A correlation coefficient of obsessive-compulsive scale is highest, anxiety scale is second, interpersonal sensitivity scale is third, depression scale is fourth high among the scales of SCL-90-R.

• 가정과삶의질연구
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• 제24권3호
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• pp.43-58
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• 2006

The purpose of this study is to analysis the effects of religious activities on adolescents' life satisfaction. For this purpose, we surveyed the general trend of adolescents' religious activities and life satisfaction as well as life satisfaction according to demographical variables. In addition, this study analyzed adolescents' life satisfaction according to variables related to individual adolescents' religious activities and to parents' religious activities. The analyses of the results are as follows. First, since the childhood, adolescents have been participated in religious activities habitually or by enforcement or encouragement of their acquaintances. However, most adolescents think that the main purposes of their religious activities are a receiving grace and self-growing. So, they are willing to participate in worship service and spiritual training camp. Second, adolescents' life satisfaction was high when they got a high grade in school or they felt their health condition is good. The life satisfaction of adolescents who belong to economically high class families and whose fathers were college graduates or above is high. Third, the facts that effect on adolescent's life satisfaction are not how long they spend their time on religious activity, but the contents, motives and purposes of religious activities and satisfaction with religious activities. Fourth, adolescents' life satisfaction was high when their parents have same religion to them and their fathers participated in religious activities and their mothers did not participate in religious activities.

• 아동학회지
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• 제37권1호
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• pp.95-108
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• 2016

Objective: The purpose of this study was to examine the mediating effect of internet use type on the relationship between parental attachment and school life adjustment. Methods: For this study, data were drawn from 4th wave panel data of Korea Children and Youth Panel Survey. 1,537 1st graders of middle school were used for analysis. Results: The results of this study were summarized as follows. First, adolescents' parental attachment positively influenced school life adjustment. Second, study oriented internet use positively influenced school life adjustment. However, entertainment oriented internet use negatively influenced school life adjustment, and relation oriented internet use did not influence school life adjustment. Third, study and entertainment oriented internet use mediated parental attachment and school life adjustment. However, relation oriented internet use did not mediate parental attachment and school life adjustment. Conclusion: The discovery that study oriented internet is a factor that can improve school life adjustment carries a significant meaning. Based on the results, some implications are discussed to improve school life adjustment in early adolescence.