• International Journal of Human Ecology
• /
• 제10권1호
• /
• pp.87-98
• /
• 2009

This study examines the socio-cultural readjustment of the Korean students returning from overseas study at an early age. For this study 259 returnee students from elementary through high school completed a questionnaire which covered aspects such as school adjustment and re-acculturative stress in relationship to gender, grade, number of parents accompanying the students overseas, length of overseas stay, age of return, length of stay in Korea, and the acculturative stress experienced in a host culture. The findings indicate that re-acculturative stress level of returnee students is higher than the level of the acculturative stress, and that the two are positively related. Hierarchical multiple regression analyses reveal the grade and acculturative stress of returnee students as a significant predictor of school adjustment. The length of overseas stay and acculturative stress significantly predicted the re-acculturative stress level. The acculturative stress significantly affected both school adjustment and re-acculturative stress of returnee students back in Korea.

• ALGAE
• /
• 제28권2호
• /
• pp.131-147
• /
• 2013

Major progress has been made in the past decade towards understanding of the biosynthesis of red carotenoid astaxanthin and its roles in stress response while exploiting microalgae-based astaxanthin as a potent antioxidant for human health and as a coloring agent for aquaculture applications. In this review, astaxanthin-producing green microalgae are briefly summarized with Haematococcus pluvialis and Chlorella zofingiensis recognized to be the most popular astaxanthin-producers. Two distinct pathways for astaxanthin synthesis along with associated cellular, physiological, and biochemical changes are elucidated using H. pluvialis and C. zofingiensis as the model systems. Interactions between astaxanthin biosynthesis and photosynthesis, fatty acid biosynthesis and enzymatic defense systems are described in the context of multiple lines of defense mechanisms working in concert against photooxidative stress. Major pros and cons of mass cultivation of H. pluvialis and C. zofingiensis in phototrophic, heterotrophic, and mixotrophic culture modes are analyzed. Recent progress in genetic engineering of plants and microalgae for astaxanthin production is presented. Future advancement in microalgal astaxanthin research will depend largely on genome sequencing of H. pluvialis and C. zofingiensis and genetic toolbox development. Continuous effort along the heterotrophic-phototrophic culture mode could lead to major expansion of the microalgal astaxanthin industry.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2022년도 추계학술대회
• /
• pp.478-480
• /
• 2022

본 콘텐츠는 코로나 펜데믹 상황이 계속해서 유지됨에 따라 언텍트 사회를 앞당기게 된 현실 상황에서 외부 활동이 통제된 요양원 노인들의 스트레스를 감소시키고 요양원 내부에서도 시각적, 청각적 즐거움을 주기 위해서 제작되었다. 요양원 노인은 콘텐츠 이용 시나리오를 통하여 사회복지사의 도움을 받아. 디지털 시각 문화 콘텐츠를 이용 함으로써 계속해서 쌓이던 스트레스를 가상의 사람들과 함께 느끼면서 스트레스가 해소되며 동질감을 가질 수 있게 된다. 해당 콘텐츠를 통하여 요양원 노인들의 일생에 긍정적인 효과를 줄 수 있을 것이다.

• 중환자간호학회지
• /
• 제14권2호
• /
• pp.12-23
• /
• 2021

Purpose : The purposes of this study were to examine the levels of job stress, perceptions of the patient safety culture, and patient safety nursing activities, and to identify factors influencing patient safety nursing activities among intensive care unit (ICU) nurses. Methods : For this cross-sectional study, data were collected from 161 ICU nurses working in two university-affiliated hospitals in Gyeonggi-do between June 30 and July 30, 2020. The data were analyzed with descriptive statistics, an independent t-test, a one-way ANOVA, the Pearson correlation method, and multiple regression using the SPSS program. Results : The average levels of job stress, perception of patient safety culture, and patient safety nursing activities were 3.48, 3.44, and 4.45 out of 5, respectively. Multiple regression showed that perception of patient safety culture and career in current workplace were found to be statistically significant correlates of patient safety nursing activities. Conclusion : In order to promote patient safety nursing activities, patient safety culture needs to be incorporated into the education of ICU nurses. Perception of patient safety should be enhanced to improve patients safety nursing activity.

• 한국환경농학회지
• /
• 제18권4호
• /
• pp.361-365
• /
• 1999

본 연구는 우리 나라 콩 장려품종인 검정콩1호를 대상으로 100mM NaCl 처리에 따른 30일묘의 생육특성 및 광합성 반응을 조사하여 다음과 같은 결과를 얻었기에 보고하는 바이다. NaCl stress에 의한 콩 유묘는 뿌리혹이 전혀 형성되지 않았으며, 잎의 건물중이 77.3% 감소로 염해가 가장 크게 나타났으며, 경직경의 감소는 가장 적었다. 그러나 수분함량은 NaCl stress로 증가하였는데 잎이 가장 많은 수분함량을 보였다. 또한 엽위별 엽두께는 NaCl stress로 두꺼워졌으며, 잎의 수분포텐셜은 낮아졌다. 엽록소함량은 NaCl stress로 감소하였으며 생육이 진전됨에 따라 감소되었지만 무처리는 증가하는 경향을 보였다. 광합성, 기공전도도, 증산량 모두 NaCl stress로 감소하였으며 NaCl stress에 의한 엽의별 차이는 적은 것을 알 수 있었다.

• 한국식품영양학회지
• /
• 제24권4호
• /
• pp.803-807
• /
• 2011

Human umbilical Mesenchymal Stem Cell(uMSC) has been known as one of major component to regenerate connective tissues such as bone, cartilage, fat and others. The effect of low(5%), normotensive(20%) oxygen and freezing-thawing damage on proliferation of uMSC were investigated. low oxygen concentration culture of uMSC resulted in enhanced proliferation significantly($p$ <0.05) than 20% of oxygen culture. After the freezing-thawing injury to uMSC, 5% oxygen culture showed marked proliferation of uMSC than that of 20% oxygen($p$ <0.05) in the 5th passage of uMSC. Expression of antioxidant enzymes such as superoxide anion 1 and glutathione peroxidase 1 appeared marked in 20% oxygen cultured uMSC, which suggest oxidative stress could induce less proliferation of uMSC. Above findings would suggest proliferation of uMSC in 5% of oxygen will give more yields.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2008년도 춘계학술대회 논문집
• /
• pp.1233-1235
• /
• 2008

The purpose of this study is to analyze human factors - stress, alcohol, fatigue - of the railway driver in domestic railway industry. This study proposes railway safety improvement of domestic railway by intensively comparing railway safety system overseas to reinforce domestic railway safety. Domestic railways well known the well-organized railway safety culture has brought up safety issues on their process of private management. With this process, also, domestic safety is requested by increasing sense of the safety for general public. This study expects Korean railways to become a well-organized that as removing insecure factors of domestic railway based on result comparing and analyzing the manual, factors and requirements of guideline for internal and external safety culture.

• 한국안전학회지
• /
• 제18권3호
• /
• pp.126-130
• /
• 2003

The term stress is currently used to cover a wide variety of phenomena, ranging from physical to social and cultural factors. The term has defined psychological stress as an imbalance between perceived or subjective demand and perceived response capability. The behavior science model has provided the accident proneness through the life change unit factors considering human behavior, life style, ideas, culture, and psychological state. Therefore, this paper presents the Korean life change unit model through statistical testing with the proposed life change unit factors on the unmarried workers living in the middle area. The proposed model can be simply used in real fields in order to minimize the industrial accidents.

• International Journal of Advanced Culture Technology
• /
• 제7권3호
• /
• pp.103-110
• /
• 2019

The purpose of this study was to investigate the relationship between psychosocial factors, such as self-esteem, stress coping, and social support, and motivation for change in alcohol dependent inpatients. This study included 179 inpatients in the 7clinics for alcoholic in Chonbuk. For the analysis of the study questions, this study utilized the structural equation modeling. The results show that self-esteem was related to motivation for change with mediating role of problem-focused stress coping strategy in alcohol dependent inpatients. The study also reveal that self-esteem and social support was directly associated with the motivation for change. Based on the findings, the importance of programs to promote self-esteem and the involvement of family and acquaintances in the treatment process has been suggested.

• International Journal of Advanced Culture Technology
• /
• 제6권4호
• /
• pp.45-51
• /
• 2018

The purpose of the study was to examine the effects of family related factors (mothers' self-esteem, mothers' parenting stress, mothers' marital satisfaction, fathers' parenting involvement, and social support) on mothers' postpartum depression. The subjects were 797 households that were extracted from the $1^{st}$ wave of the Panel Study of Korean Children (PSKC). The study variables were measured using the survey questionnaires, and analyses of Pearson's correlation and multiple regression were conducted. Results showed that family related factors significantly predicted mothers' postpartum depression. Moreover, the most significant predictor was mothers' parenting stress, followed by marital satisfaction, self-esteem, fathers' parenting involvement, and social support. Study findings indicate that mothers' postpartum depression is attributed to not only personal but also family related factors. Our results suggest importance of parent education and family support along with social support.