• Proceedings of the Korean Environmental Sciences Society Conference
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• 2003.11b
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• pp.231-232
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• 2003

환경스트레스에 대한 내성식물의 개발의 일환으로 항산화 유전자를 도입한 형질전환 식물체를 이용하여 수분스트레스에 대한 반응성을 비형질전환 식물체와 비교하였다. 심한 수분스트레스를 유도하였을 때, 비형질전환 식물체에 비해 형질전환 식물체가 저하하는 수분포텐셜에 대해 높은 기공전도도와 광합성 능력을 가진 것으로 나타났다.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2012.04a
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• pp.186-189
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• 2012

효과적인 조직운영을 위한 직무스트레스의 관리는 무엇보다 조직구성원이 지각하고 있는 직무스트레스 유발요인이 무엇인지를 파악하고, 직무로 발생하는 스트레스의 역기능을 최소화하거나 스트레스 요인을 제거함으로써 조직 효과성을 제고시킬 수 있는 연구가 필요하다. 연구의 결과 소방공무원의 직무스트레스에 대해 영향요인은 심리적 환경이 가장 영향력 있는 변수이며, 그 다음으로는 작업환경, 조직문화, 신체적 환경 순으로 나타났으며 행정업무와 인간관계는 통계적으로 유의미하지 않은 것으로 나타났다.

• Journal of the Korean Institute of Educational Facilities
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• v.24 no.2
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• pp.18-24
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• 2017

본 연구는 청소년 스트레스 호르몬 변화를 보기위한 연구로 컬러 컨설팅 환경개선에 따른 스트레스 호르몬 변화를 연구하였다. 청소년 스트레스 연구들에 따르면, 아동이나 청소년도 성인만큼 스트레스를 경험하고 있고 청소년들의 스트레스는 정서적 부적응과 신체적 건강에도 영향을 미친다. 스트레스가 지속되면 부신피질에서 스테로이드 호르몬인 코티솔도 분비하는 근거를 통해 환경변화로 생긴 코티솔 분비를 측정하였다. 코티솔 분비를 통한 스트레스 반응 정도 측정은 침해성을 최소화하기 위한 간편한 방법인 타액검사로 실시하였으며 비 침습적인 방법으로 특별한 장비나 도움이 없이 수집할 수 있었고 부작용이 적은 효율적 검사였다. 연구 결과 전체 학생(46명)의 코티솔은 환경개선 사전($0.121{\pm}0.087{\mu}g/dL$)에 비해 사후($0.096{\pm}0.058{\mu}g/dL$)에 감소하였고(t=1.718, p=.093) 중고등학생(36명)의 코디솔은 사전($0.137{\pm}0.092{\mu}g/dL$)에 비해 사후($0.104{\pm}0.062{\mu}g/dL$)에 감소하였으며, 유의수준 10%에서 통계적으로도 유의미한 차이를 보였다(t=1.750, p=.089). 따라서 환경 개선 전에 비해 환경 개선 후 청소년들의 스트레스가 감소되었음을 알 수 있다. 하지만 초등학생(10명)의 코티솔은 사전($0.064{\pm}0.023{\mu}g/dL$)에 비해 사후($0.065{\pm}0.016{\mu}g/dL$)에 변화를 보이지 않아, 유의수준 5%에서 통계적으로 유의미한 변화는 나타나지 않았다(t=-0.121, p=0.906). 따라서 후두엽이 발달하는 중학생 시기는 환경 변화에 민감하며 색채 자극에 크게 영향을 미치는 시기인 만큼 본 연구에서 환경전후로 검사한 코티솔 분비의 측정값도 감소함을 볼 수 있었다. 하지만 본 연구는 환경 변화에 코티솔 분비량에 유의미한 변화를 나타내지 않은 초등학생들은 스트레스 호르몬 변화에는 차이가 없었지만 환경변화의 자극이 없었다고 볼 수는 없다.

• Journal of Navigation and Port Research
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• v.38 no.6
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• pp.615-621
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• 2014

VTS operators may suffer from acute, chronic, or traumatic stress caused by their workload and working environments associated with task or combination of task. This study intended to measure the level of VTS operator' stress and find out factors influencing it by understanding their characteristics during carrying out their task. For this purpose, analyzed the data collected through conducting survey on VTS operators as the Korea Occupational Stress(KOSS) and Psychological Well-being Index(PWI). As a result, VTS operators are experiencing higher level of psychological stress than the national average. And the factors to cause VTS operators' occupational stress can be summarized as follows; working environment factors, shift work especially night duty, workload, etc. This study provides the fundamental information for understanding human factors of VTS operator' occupational stress.

• The Journal of the Korea Contents Association
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• v.12 no.1
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• pp.400-408
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• 2012

The purpose of this study was to grasp the relationship among general characteristic, work characteristic, job stress and social psychological stress by targeting dental hygienists in a certain area. By using self-administered questionnaire, it was possible to get following results from 219 people. The total score of job stress of dental hygienist was $47.41{\pm}7.46$. The people who are younger, take lower positions at their workplace and not married showed higher stress about physical environment, autonomous work and improper compensation. The people with lower income showed higher stress about autonomous work and the people with lower academic background showed higher stress about physical environment and autonomous work. The people who spend more time at their workplace showed higher stress about autonomous work and showed lower stress about relational conflict, organization system, improper compensation and work culture. The job stress about physical environment, job request, autonomous work, unstable work, improper compensation and workplace culture had a positive correlation with social psychological stress. It was found that unstable work, organization system, improper compensation and higher position gave effects to social psychological stress.

• Korean Journal of Microbiology
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• v.52 no.2
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• pp.148-156
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• 2016

This study examined effects of Enterobacter ludwigii SJR3 showing a high 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, on growth of tomato plant and its expression of stress-related genes under drought and salt stress. SJR3 strain was inoculated at $10^6cell/g$ soil to 4-week grown tomato plants, and drought and salt stresses were treated. After additional incubation for 1 week, root length, stem length, fresh weight and dry weight of tomato plants treated with SJR3 increased by 37.8, 37.2, 96.8 and 146.6%, respectively compared to those of uninoculated plants in drought stress environment, and they increased by 19.2, 25.4, 19.5, and 105.8%, respectively in salt stress environment. Proline content in tomato leaves increased significantly under stress conditions as one of a protecting substance against stresses, but proline contents in tomato treated with SJR3 decreased by 62.1 and 54.1%, respectively. Relative expression of genes encoding ACC oxidase, ACO1 and ACO4, ethylene response factor genes ERF1 and ERF4, and some other stress-related genes were examined from tomato leaves. Compared to the non-stressed tomato, expressions of all stress-related genes increased significantly in the stressed tomato, but gene expressions in the inoculated tomato were similar to those of no-stressed control tomato. Therefore, E. ludwigii SJR3 may play an important role in mitigating drought and salt stress in plants, and can increase productivity of crops under various abiotic stresses.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.124-132
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• 2017

This study is a descriptive study comparing the nursing work environment, job stress and turnover intention of pediatric ward nurses and general ward nurses. The subjects of this study were 174 nurses with more than one year of experience working in small hospitals, general hospitals and university hospitals with more than 200 beds in G-city. Data collection was conducted from August 2016 using structured questionnaires to measure nursing work environment, job stress and turnover intentions. Results: There were no significant differences in nursing work environment between pediatric ward nurses and general ward nurses, and there were significant differences in job stress. Especially, the more nursing work environment of pediatric ward nurses was, the higher the job stress, the higher the turnover intention. In other words, pediatric ward nurses are more likely to have higher job stress than regular ward nurses because they are stressed not only from the health problems of the child but also from the family members. Therefore, communication and self-achievement that can reduce the job stress of the pediatric ward nurse and a variety of measures are needed.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.329-338
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• 2019

The purpose of this study was conducted to determine the influence of perceptions of the campus environment and health perception on stress of nursing students. Data were collected from three nursing colleges from December 01 to December 30, 2016, and data were collected by 223 students using the SPSS/WIN 21.0 program. Result of this study, the general characteristics of differences in stress were age, experience of clinical practice, gender, type of housing, personality and eating habits type, and experience in using the school health center. Stress showed negative correlation between perceptions of the campus environment and health perception. Factors influencing stress were eating habits, gender, perceptions of the campus environment and health perception, and their explanatory power on stress was 23.1%. Therefore, to reduce the stress of nursing college students, various programs should be developed and operated to improve the perceptions of the campus environment and increase the perception of health.

• Journal of Plant Biotechnology
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• v.44 no.3
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• pp.220-228
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• 2017

Many crops including cereals, tuber crops, feeds, and turf grasses are often damaged by various environmental stresses such as drought, salt, cold, and high temperature, causing the reduction of their productivity. Plants are sessile and cannot escape from environmental stresses. Thus, plants evolve in the direction of overcoming the environmental stresses. Some plant genes such as ARF, ABI3, NAC, HSF, and WRKY are known to respond to environmental stresses as they transcriptionally regulate the stress response pathways. For example, the OsWRKY76 gene contributes to the enhanced resistance to low temperatures and pathogenic infections. The AtWRKY28 also plays a role in environmental stresses. Zoysiagrass (Zoysia japonica Steud.) is popularly grown for gardens and golf courses. However, the function of the WRKY gene, another environmental stress-related gene, is not known in zoysiagrass. In this study, the ZjWRKY3 and ZjWRKY7 genes with one shared WRKY domain have been isolated in zoysiagrass. The expression of these genes increased in response to low temperature, drought, and salt stresses. Furthermore, the infection of the brown patch-causing Rhozoctonia solani induced the expression of ZjWRKY3 and ZjWRKY7. The corresponding proteins bind to the W-box of the Zjchi promoter, possibly regulating their transcriptions. The researchers suggest that the ZjWRKY3 and ZjWRKY7 genes transcriptionally regulate abiotic and biotic stress related downstream genes.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1417-1418
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• 2015

본 연구에서는 사용자 생체신호 및 주변 환경정보를 기반으로 스트레스 이완을 돕는 IoT 디퓨저 시스템 설계와 구성을 다룬다. 개발된 디퓨저는 스마트폰 어플리케이션과 연동되어 사용자의 맥박수를 전달 받고, 또한 내장된 온습도센서에서 측정된 사용자 주변 환경정보와도 연동되어 발향 및 조명 효과를 제공한다. 개발된 디퓨저 시스템은 사용자의 심박이 다소 빠르거나 사용자에게 스트레스를 줄 수 있는 온습도 환경이 감지되는 경우 스트레스 경감과 관련된 발향 및 조명색 제어를 통해 사용자의 스트레스 조절을 도울 수 있다.