• Title/Summary/Keyword: Stress Resilience

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Variations in Kiwifruit Microbiota across Cultivars and Tissues during Developmental Stages

  • Su-Hyeon Kim;Da-Ran Kim;Youn-Sig Kwak
    • The Plant Pathology Journal
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    • v.39 no.3
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    • pp.245-254
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    • 2023
  • The plant microbiota plays a crucial role in promoting plant health by facilitating the nutrient acquisition, abiotic stress tolerance, biotic stress resilience, and host immune regulation. Despite decades of research efforts, the precise relationship and function between plants and microorganisms remain unclear. Kiwifruit (Actinidia spp.) is a widely cultivated horticultural crop known for its high vitamin C, potassium, and phytochemical content. In this study, we investigated the microbial communities of kiwifruit across different cultivars (cvs. Deliwoong and Sweetgold) and tissues at various developmental stages. Our results showed that the microbiota community similarity was confirmed between the cultivars using principal coordinates analysis. Network analysis using both degree and eigenvector centrality indicated similar network forms between the cultivars. Furthermore, Streptomycetaceae was identified in the endosphere of cv. Deliwoong by analyzing amplicon sequence variants corresponding to tissues with an eigenvector centrality value of 0.6 or higher. Our findings provide a foundation for maintaining kiwifruit health through the analysis of its microbial community.

Proof tests of REBCO coated conductor tapes for device applications through electromechanical property assessment at 77 K

  • Mark Angelo Diaz;Michael De Leon;Hyung-Seop Shin;Ho-Sang Jung;Jaehun Lee
    • Progress in Superconductivity and Cryogenics
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    • v.25 no.3
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    • pp.34-37
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    • 2023
  • The practical application of REBCO coated conductor (CC) tapes, vital for energy transmission (e.g., cable application) and high-field magnets (e.g., coil application), necessitates efficient and simple quality assessment procedures. This study introduces a systematic approach to assess the electromechanical properties of REBCO CC tapes under 77 K and self-field conditions. The approach involves customized tensile and bending tests that clarify the critical current (Ic) response of the CC tapes under mechanical loads induced by tension and bending. This study measures the retained Ic values of commercially available GdBCO CC tapes under 250 MPa tensile stress and 40 mm bending diameter. Through experimentation, the study demonstrates the resilience of these tapes and their suitability for applications. By presenting a simplified stress-based analysis and a bending test of the tapes, the study contributes to effective quality assessment methods for the development of practical superconducting products.

A Structural Equation Model on Family Strength of Married Working Women (기혼직장여성의 가족건강성 구조모형)

  • Hong, Yeong Seon;Han, Kuem Sun
    • Journal of Korean Academy of Nursing
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    • v.45 no.6
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    • pp.900-909
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    • 2015
  • Purpose: The purpose of this study was to identify the effect of predictive factors related to family strength and develop a structural equation model that explains family strength among married working women. Methods: A hypothesized model was developed based on literature reviews and predictors of family strength by Yoo. This constructed model was built of an eight pathway form. Two exogenous variables included in this model were ego-resilience and family support. Three endogenous variables included in this model were functional couple communication, family stress and family strength. Data were collected using a self-report questionnaire from 319 married working women who were 30~40 of age and lived in cities of Chungnam province in Korea. Data were analyzed with PASW/WIN 18.0 and AMOS 18.0 programs. Results: Family support had a positive direct, indirect and total effect on family strength. Family stress had a negative direct, indirect and total effect on family strength. Functional couple communication had a positive direct and total effect on family strength. These predictive variables of family strength explained 61.8% of model. Conclusion: The results of the study show a structural equation model for family strength of married working women and that predicting factors for family strength are family support, family stress, and functional couple communication. To improve family strength of married working women, the results of this study suggest nursing access and mediative programs to improve family support and functional couple communication, and reduce family stress.

The Effect of Kindergarten Teacher's Empathy Ability on Job Stress through Positive Psychological Capital (유치원 교사의 공감 능력이 긍정심리자본을 통해 직무 스트레스에 미치는 영향)

  • Ji, Mi-Sun;Lee, Sin-Bok
    • The Journal of the Convergence on Culture Technology
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    • v.7 no.1
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    • pp.240-255
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    • 2021
  • The kindergarten teachers play a role in closely babysitting infants, teachers' high empathy helps respect infants' emotions and opinions, and leads to positive relationships, ultimately improving their job satisfaction and confidence, but lack specific research results. As a result, this study sought to find out how the empathy of kindergarten teachers affects job stress through positive psychological capital, and to find ways to increase positive psychological capital and empathy. To achieve this, the research method identified the causal relationship of each variable based on the results of the survey of 212 kindergarten teachers in Seoul and Gyeonggi Province. According to the study, first, among the empathy abilities of kindergarten teachers, emotional empathy has a positive impact on all factors of positive psychological capital. Second, cognitive empathy among empathy abilities has a positive impact on all factors of positive psychological capital. Third, looking at the overall positive psychological capital of kindergarten teachers and the effects of job stress showed that it negatively affects self-efficacy and resilience.

A study on the Correlation between Stress and Burnout Affecting Child Care Center Directors -Focusing on the Mediating Effect of turnover Intention- (어린이집 운영자에게 영향을 미치는 스트레스 및 소진과의 상관성 연구 -이직의도를 매개효과로 한-)

  • Min-Gi Jeong;On-You Jeong
    • Industry Promotion Research
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    • v.8 no.1
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    • pp.95-102
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    • 2023
  • This study identified the relationship between stress and burnout that affects turnover intention of daycare center operators in the process of childcare and operation, and analyzed the role of burnout in the correlation between stress and turnover factors in Child Care Center Directors. The research results are as follows. First, the higher the stress of the Child care center director, the higher the burnout. In particular, among the stresses, the director confirmed that the higher the stress on faculty management and administrative and financial management, the higher the burnout. Second, the higher the burnout of the director of the Child care center, the higher the turnover intention. Third, it was confirmed that the higher the stress of the Child care center director, the higher the turnover intention. Fourth, as a result of verifying the mediating effect presented in this study, it can be said that burnout has a mediating effect in the correlation between stress and turnover intention, and since the direct effect of stress on turnover intention is not significant, this mediating effect is completely mediating. can be said. In conclusion, it was confirmed that preventing job burnout is the most important issue for managing stress, which is the most important factor for turnover of Child care center Directors. Therefore, it can be said that stress and burnout have a significant correlation among job factors of childcare center directors.

Development of Design Method for Reinforced Roadbed Considering Plastic Settlement for High-speed Railway (고속철도에서의 소성침하를 고려한 강화노반 설계기법 개발)

  • Choi, Chan-Yong;Choi, Won-Il;Han, Sang-Jae;Jung, Jae-Hyun
    • Journal of the Korean Geotechnical Society
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    • v.29 no.9
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    • pp.55-69
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    • 2013
  • An alternative design method of existing methods based on elastic theory the design method of roadbed considering plastic deformation of roadbed and stress-strain at roadbed materials with the cyclic loading of trains passing. The characteristics of the developed design method considering traffic load, number of cyclic loading and resilience modulus of roadbed materials can evaluate elastic strain as well as plastic settlement with allowable design criteria. The proposed design method is applied to standard roadbed section drawing of HONAM high-speed railway considering design conditions such as allowable elastic and plastic settlement, train speed, the tonnage of trains. As a result, required levels of resilience modulus model parameter ($A_E$), unconfined compressive strength, types of soil material were evaluated.

Mechanical Properties and Fabric Handle of Grafted Silk Fabrics (그라프트 가공 견직물의 力學特性과 태의 分析硏究)

  • Kim, Kyu Beom;Chin, Young Gil
    • Textile Coloration and Finishing
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    • v.8 no.3
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    • pp.52-58
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    • 1996
  • In order to study an applicable level for the graft finish of silk filaments and the characteristics of silk fabric, some sample fabrics were woven with grafted weft and the characteristics of sample fabrics were analyzed to evaluate the mechanical properites and the handle values according to the graft yield(%) of MMA and HEMA monomers on silk filaments. 1. The tensile properties were detected in the increase of linearity(LT) and the recovery in time of the increasing resilience(RT). 2. The bending properties were detected to have a lot of effect on the balance of bending rigidity(B) to hysteresis(2HB) according to the elastic relaxation of warp tension and the interlacing stress. 3. The shearing properities were detected to show the softness and the elastics in a case of the decrease in shearing rigidity(G) and hysteresis(2HG, 2HG5) according to the graft yields. 4. The compression properties were detected in the decrease of linearity(LC) and the uniformity of resilience(RC). It explains that the tendancies of compressible variation is not accepted. 5. The surface properities were detected to be affected by the surface forms of grafted silk filaments and the variation in the morphologies of interlacing sections. Considering the interlacing eveness, MMA grafted fabrics were accepted within the level of WOMEN'S THIN DRESS(KN-201-LDY) but HEMA grafted fabrics were not accepted. 6. The variation of handles were detected in the increase of total hand(TAV) within the levels of 65% of KOSHI and 82% of HARI on the average. 7. The handle fashions were detected in the nature of Habuta and Dechine from MAA graft but the nature of Fugi were shaped from HEMA graft in proportion to the graft yields.

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Psychometric Properties of the Revised Multidimensional Coping Scale in University Students (개정판 다차원적 대처척도의 타당도와 신뢰도 : 대학생을 중심으로)

  • Kim, Hee Kyung;Lee, Eun Jin
    • Journal of the Korea Convergence Society
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    • v.10 no.9
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    • pp.323-332
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    • 2019
  • The purpose of this study was to examine the validity and reliability of the Revised Multidimensional Coping Scale(MCS-R) in university student who attended smoking cessation group therapy. Data were collected from 198 university students. Construct validity using exploratory factor analysis were conducted and convergent validity using Resilience scale, Patient Health Questionare-9(PHQ-9) were conducted. A Principal components analysis with varimax rotation and Kaiser normalization identified a thirteen-factor accounting for 69.7% of the variance in scores. Also, the internal consistency(0.66-0.94) and test-retest reliability was adequate(0.44-0.85) in all subscales of the MCS-R. The MCS-R has adequate psychometric characteristics so it can be used to verify.

Effects of Positive Psychological Capital of Service Industry Workers on the Service Performances through Perfectionism and Role Conflict (서비스업 근로자들의 긍정심리자본이 완벽주의와 역할갈등을 통해 서비스 성과에 미치는 영향)

  • Park, Chol-Hoon;Lee, Sin-Bok;Park, Chanuk
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.19 no.5
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    • pp.195-203
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    • 2019
  • In this article, it was studied how positive psychological capital in the service industry workers affected the service performances by perfectionism and role conflict in the service industry employees. This was to suggest the practical solutions on the emotional labor or job stress that the existing workers in the service industry were experiencing. Upon the study results, self-efficacy, hope, and resilience among the factors of positive psychological capital showed to affect perfectionism and role conflict while optimism did not. Based on this study, the practices and problems of the workers in the service industry could be understood and it seems to improve and support their working environment to provide better services. In other words, these results mean to enhance the self-efficacy and resilience of the workers in the service industry so as to provide the stakeholders of service industry or related institutions with the basic data.

A Systematic Review of the Studies on Organizational Socialization (간호학 분야 조직사회화 연구에 대한 체계적 문헌고찰)

  • Byun, Jinyee
    • Journal of Convergence for Information Technology
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    • v.11 no.3
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    • pp.77-86
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    • 2021
  • This study aims to systematically review literature on organizational socialization in the field of nursing. The keywords of 'organizational socialization' and 'nursing' were combined with the AND operator, and the author analyzed the total of 26 journal articles published between 2010 and 2020. The number of journal articles on organizational socialization has increased since 2016, and all the articles took an descriptive study approach. It was found that the variables of resilience, role stress, perception of justice, bullying, professional self-concept, and organizational climate could affect organizational socialization, and the variables of intention to leave, intention on retention, resilience, and organizational commitment could be affected by organizational socialization. The result of this study can be used for guiding organizational socialization research in nursing.