• Title/Summary/Keyword: 환경적 스트레스

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A Study on Human Thermal Comfort of Residential Development Districts in Summer Season (여름철 택지개발지역의 열쾌적성에 관한 연구)

  • Kong, Hak-Yang;Choi, Nakhoon;Park, Sungae;Lee, Jongchun;Park, Sookuk
    • Ecology and Resilient Infrastructure
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    • v.5 no.4
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    • pp.219-228
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    • 2018
  • This study measured the Physiological Equivalent Temperature (PET) of the hottest day time in a day, in order to verify the characteristics of human thermal comfort in case of heat wave during summer time in each region, by subdividing the urban areas in accordance with the climatic characteristics with the use of Local Climate Zone (LCZ) as a method of classifying the type of urban climate and the land cover map, targeting the Homaesil residential development district in Suwon. In the results of measurement, the forest and paddy field showed the moderate heat stress while the urban park showed the strong heat stress. Other developed areas showed the extreme heat stress. Such results show the possibility of institutional utilization for the improvement of human thermal comfort through the verification of climatic characteristics and differences in each type of urban areas, and the efficient placement of green infrastructure and the planning of land use to cope with the heat wave even in the planning stage for the establishment of urban planning.

성인형(제2형)당뇨병은 문화병인가?

  • Yu, Hyeong-Jun
    • 건강소식
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    • v.10 no.12 s.97
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    • pp.30-33
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    • 1986
  • 유전적으로 당뇨병이 될 소질이 있어도 스트레스,무절제등의 환경요인이 덧붙지 않으면 평생을 당뇨병을 모르고 지내게 되는데,문화의 발달에 따라 그러한 환경요인들은 보다 자주,보다 강하게 밀려오고 있어,당뇨병은 문화의 발달에 따라 그 빈도가 늘고 있다.

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Response of Monodehydroascorbate Reductase (MDHAR) in Lettuce (Lactuca sativa L.) Leaves Subjected to Water Deficit Stress (수분 부족 스트레스 처리시 Monodehydroascorbate Reductase (MDHAR)의 반응)

  • Kang, Sang-Jae
    • Journal of Bio-Environment Control
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    • v.17 no.4
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    • pp.273-282
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    • 2008
  • The relationship between water deficit stress and monodehydroascorbate reductase (MDHAR) activity was determined in lettuce (Lactuca sativa L.) leaves under water stress condition imposed by with-holding water for 72 hrs. Relative water content determined in water deficit stressed lettuce leaves gradually reduced from 91.29% to 74.58%, and water content of medium drastically decreased 4.73% after quitting of irrigation. Hydrogen peroxide content in leaves subjected to water deficit stress rapidly increased, but soluble protein content rapidly decreased when those were compared to control plant. The relationship between relative water content and hydrogen peroxide content in stressed leaves positively correlated with $R^2$=0.8851, but soluble protein content reversely correlated with $R^2$=0.9826. Total chlorophyll content in stressed plant leaves was higher than that of control plant, and increased rapidly in early stage of treatment of both stressed and control plants. Carotenoid content was higher than that of control plant, and the ratio of carotenoid to total chlorophyll in stressed plant was higher as compared to control plant. As water deficit stress continued progressively, total ascorbate content in stressed plant leaves was a little higher than that of control plant. But dehydroascorbate (DHA) content within 6 hr of water deficit stress was higher than that of control plant, and then, content of control plant in 12 hr of stress treatment higher than that of stressed leaves. The activity of monodehydroascorbate reductase of cytosolic and chloroplastic tractions increased dramatically, and mRNA of MDHAR was highly detected by probing $^{32}P$-labeled single stranded MDHAR RNA of lettuce plant leaves subjected to water deficit stress. Relationship between MDHAR activity and relative water content and hydrogen peroxide highly correlated with $R^2$=0.9937 and 0.8645, respectively.

The Longitudinal Relation between Stressors and Depression of Men in Baby Boom Generation (베이비붐 세대 남성의 스트레스 요인과 우울의 종단적 인과관계)

  • Sung, Jun Mo
    • Korean Journal of Social Welfare
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    • v.64 no.4
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    • pp.285-310
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    • 2012
  • This study examined the causal relationship of between stressors and depression using the wave 1~4 of Korean Welfare Panel Study by social stress theory. According to the result, the level of depression and depressed group was decreased in the course of time. As a panel regression analysis, Factors affecting the reduction of depression was upward of the income hierarchy, increase the satisfaction of family and social relationships, and residential satisfaction. Based on the results, the author suggested that social work policies and intervention direction should decrease social stress factors with causality to depression of the men in baby boom generation.

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Relationship of job-satisfaction due to Radiographer's Job-Characteristics and Job-Stress (방사선사의 직무특성 및 직무스트레스에 따른 직무만족도의 관계)

  • Lee, Mi-Hwa
    • The Journal of the Korea Contents Association
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    • v.15 no.8
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    • pp.408-415
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    • 2015
  • This study investigated the job-satisfaction of the Radiographer's job-characteristics and job-stress. A total of 213 Radiographer were surveyed using a self-administered questionnaire. The 105 questionnaires consist of general characteristics, job characteristics, occupational stress, and job satisfaction. The job satisfaction was categorized into 3 sub-scales; psychological variables, environmental variables, and structural variables. The occupational stress was categorized into 8 sub-scales; physical environment, job demand, insufficient job control, interpersonal conflict, job insecurity, organizational system, lack of reward, and occupational climate. 30 years old than 30 years later, people are highly rewarding than a low person, this person is lower than people with high sense of duty, place the larger the size of Seoul, hospital than fat, than people who do not have turnover intention this, job insecurity, organizational structure, inadequate compensation, workplace culture, physical environment, people with low job satisfaction is higher than men were. As such there is a need to identify the cause because otherwise indicated differences in job satisfaction.

The Relationship among Parental Learning Involvement, Family Strengths, and Academic Stress of Adolescents (청소년이 인식한 부모의 학습관여, 가족건강성 및 학업스트레스의 관계)

  • Kim, Eun Jeong;Lee, Seon Jeong;Shin, Hyo Shick
    • Journal of Korean Home Economics Education Association
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    • v.31 no.1
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    • pp.59-75
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    • 2019
  • The purpose of this study was to explore ways to help reduce adolescents' academic stress by exploring the influences of parental learning involvement and family strengths on academic stress. The research participants were 445 middle school students living in Gwangju. Data were collected from self-reported questionnaires and analyzed with SPSS 23.0 program. The major findings were as follows: First, the parental learning involvement(provision of learning option, democratic rules, encouragement of academic progress) and academic stress showed significant differences according to gender. There was a significant difference in academic stress depending on school year, but there was no significant difference in parental learning involvement. The family strengths did not show significant difference according to gender or school year. The parental learning involvement(provision of learning option, democratic rules, pursuit of adequate performance, academic information, total), family strengths, and academic stress showed significant differences according to economic status. Second, the adolescents' academic stress was influenced by parental learning involvement(encouragement of academic progress, democratic rules, pursuit of adequate performance) and family strengths. Approximately 30 percent of the adolescents' academic stress was explained by these variables.

Effect of Heat Stress of Extreme Heat Lever on Muscle functionand Muscle Injury Markers in Elderly Women (열 스트레스가 여성노인들의 근기능 및 근손상에 미치는 영향)

  • Park, Sok;Lee, Chone Ho;Back, Seung Ok;Shin, Yong Up;Kim, Jung Suk;Cho, Young Wung;Lee, Young Jun
    • 한국노년학
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    • v.30 no.3
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    • pp.793-802
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    • 2010
  • The purpose of this study was to examine the influence of extreme heat on muscle function and muscle injury marker in elderly women. The subjects of this study were eight post-menopausal elderly women without any metabolic disease. All eight subjects were asked to perform the knee joint isokinetic exercise using isokinetic equipment (cybex) in the laboratory and experimental temperature within laboratory was adjusted to two conditions: extreme heat temperature(33±0.5℃) and normal temperature(20±0.5℃) maintained in 50±3% humidity conditions. Each experimental exercise was monitored and analyzed the change of HSP70, LDH and CK. Muscular functions (peak torque, total work, percentage of peak torque body weight, fatigue index, average power and total work) were significant differences at exercise between temperatural conditions (p<.05). In extreme heat temperature, muscular injury markers (HSP70, LDH and CK) were increased, threfore resulted in significantly higher than normal temperature(p<.05). These results show that extreme heat temperature can decrease muscle function in elderly women.

The Effect of Group Music Therapy for At-Risk Korean Soldiers on Adjustment and Stress Level (집단음악치료가 관심병사의 군 생활 스트레스와 적응에 미치는 효과)

  • Yun, Juri
    • Journal of Music and Human Behavior
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    • v.9 no.1
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    • pp.55-71
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    • 2012
  • The purpose of this study was to investigate the effect of group music therapy for at-risk Korean soldiers on the levels of adjustment and stress. The study was conducted at a division of the Korean Army with 7 participants who were classified as "at-risk soldiers" based on the results of a psychiatric evaluation, MMPI-II and a personal interview with a counselor. The participants received 12 hours of group music therapy for three weeks and their scores on stress and adjustment inventories were compared before and after the treatment. The pre and post scores were analyzed with the Wilcoxon test for repeated measures. The results revealed that the overall stress level was significantly decreased while there was no significant improvement in the adjustment levels at p < .05. The research findings and personal remarks from the participants suggest that group music therapy may provide effective support for at-risk Korean soldiers in coping with stress and adjustment to military life.

The Factors Influencing Employment Stress of Nursing Students (간호대학생의 취업스트레스에 미치는 영향요인)

  • Cho, Eui-Young;Kim, Jung Ae;Kim, Ji-Young;Kim, Hyun-Ji;Ra, Eun-Soo;Lee, Hye-Yeon
    • The Journal of the Convergence on Culture Technology
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    • v.2 no.1
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    • pp.35-43
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    • 2016
  • The purpose of this study was to analyze the relationship between general characteristics, clinical practice stress, major satisfaction and employment stress, and check the effect on employment stress in order to provide baseline data of reduced amount of stress from nursing undergraduates. Methods: The cross-sectional descriptive study design was used. We selected 388 nursing undergraduate students from nursing college located in Daejeon, Jinju, Naju city by convenience random sampling and analyzed the data using SPSS 22.0 program. Results and Conclusion: Factors that effects on employment stress was clinical practice stress, major satisfaction and family economic status, and the explanatory power was 23.8%. The results show the need for development of pre-clinical practice adaptation education program and applying it for nursing students to reduce the clinical practice stress. Also, development of counseling program is needed, since nursing has higher employment rate compare to other major however it is difficult to get a job at wanted hospital, moreover there are students who are pressured from license examination.

Molecular Isolation and Characterization of the 2CysPrx Gene from Salicornia herbacea (퉁퉁마디로부터 2CysPrx 유전자 분리 및 특성 분석)

  • Kim, Suk-Kyu;Chung, Sang Ok;Na, Gil-Jong
    • Korean Journal of Environment and Ecology
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    • v.30 no.5
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    • pp.810-820
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    • 2016
  • This study is focused on the investigation of the genes which are induced by various stresses of the halophyte Salicornia herbacea. One of the factors influencing in the germination of Salicornia herbacea is salt stress. The highest germination rate was found in the condition without NaCl, and the upper limit of the NaCl concentration for the germination of Salicornia herbacea was 7%. The optimal temperature of $20^{\circ}C$showed a germination rate of 98%. Among genes induced by stress the 2CysPrx gene was cloned and analyzed for this study. The 2CysPrx gene has two cysteine conserved residues and is composed of 275 amino acids with molecular weight of 30.1kDa. The 2CysPrx gene appeared to be one copy in the genome and consists of 6 introns and 7 exons. Quantitative real-time PCR revealed that the highest transcription rate induced by NaCl and $H_2O_2$ appeared to be at the concentration of 3.5% NaCl and 40mM $H_2O_2$, respectively. The amount of transcript induced by high temperature($40^{\circ}C$) and $75{\mu}M$ of ABA was respectively highest. The gene at low temperature ($4^{\circ}C$) appeared not to be expressed. We are conducting to clone other peroxyredoxin genes induced by various environmental stresses.