• 제목/요약/키워드: Stress reducing strategies

검색결과 59건 처리시간 0.032초

Soybean Improvement for Drought, Salt and Flooding Tolerance

  • Pathan, Safiullah;Nguyen, Henry T.;Sharp, Robert E.;Shannon, J. Grover
    • 한국육종학회지
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    • 제42권4호
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    • pp.329-338
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    • 2010
  • Drought, salinity and flooding are three important abiotic factors limiting soybean production worldwide. Irrigation, soil reclamation, and drainage systems are not generally available or economically feasible for soybean production. Therefore, productive soybean varieties with tolerance are a cost effective means for reducing yield losses due to these factors. Genetic variability for higher tolerance to drought, salt and flooding is important. However, only a small portion of nearly 200,000 world soybean accessions have been screened to find genotypes with tolerance for use in breeding programs. Evaluation for tolerance to drought, salinity and flooding is difficult due to lack of faster, cost effective, repeatable screening methods. Soybean strains with higher tolerance to the above stresses have been identified. Crosses with lines with drought, salt and flooding tolerance through conventional breeding has made a significant contribution to improving tolerance to abiotic stress in soybean. Molecular markers associated with tolerance to drought, salt and flooding will allow faster, reliable screening for these traits. Germplasm resources, genome sequence information and various genomic tools are available for soybean. Integration of genomic tools coupled with well-designed breeding strategies and effective uses of these resources will help to develop soybean varieties with higher tolerance to drought, salt and flooding.

The Moderating Role of Emotional Intelligence on the Relationship Between Conflict Management Styles and Burnout among Firefighters

  • Estelle Michinov
    • Safety and Health at Work
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    • 제13권4호
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    • pp.448-455
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    • 2022
  • Background: While the organizational factors that account for firefighters' burnout have been extensively explored, the individual factors related to how they regulate interpersonal conflicts and emotions remain to be investigated. Previous research has demonstrated the association between emotional intelligence and conflict management styles and burnout, but no study has looked at the interrelationships among these factors in high-risk sectors. The present exploratory study aimed to fill this research gap by investigating the relationships between conflict management style, emotional intelligence and burnout in a sample of firefighters. Methods: A cross-sectional study was conducted with 240 French firefighters. Measures comprised validated scales of conflict management styles, emotional intelligence and burnout. Results: Results showed that the integrating conflict style reduced burnout. They also revealed the effects of emotion regulation on burnout, whereby the awareness and management of one's own emotions reduced burnout. Moreover, awareness of one's own emotions moderated the relationship between integrating conflict resolution style and burnout, whereby the effect of integrating style on reduced burnout was higher when awareness of one's own emotions was high. Conclusion: These results reveal that strategies used by firefighters to regulate their emotions in order to meet the emotional demands specific to their job are important for reducing the emotional exhaustion component of burnout. Training programs for conflict and emotion management are needed to preserve the mental health of firefighters and ensure the safety of interventions.

Impaired Autophagic Flux in Glucose-Deprived Cells: An Outcome of Lysosomal Acidification Failure Exacerbated by Mitophagy Dysfunction

  • Eun Seong Hwang;Seon Beom Song
    • Molecules and Cells
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    • 제46권11호
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    • pp.655-663
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    • 2023
  • Autophagy dysfunction is associated with human diseases and conditions including neurodegenerative diseases, metabolic issues, and chronic infections. Additionally, the decline in autophagic activity contributes to tissue and organ dysfunction and aging-related diseases. Several factors, such as down-regulation of autophagy components and activators, oxidative damage, microinflammation, and impaired autophagy flux, are linked to autophagy decline. An autophagy flux impairment (AFI) has been implicated in neurological disorders and in certain other pathological conditions. Here, to enhance our understanding of AFI, we conducted a comprehensive literature review of findings derived from two well-studied cellular stress models: glucose deprivation and replicative senescence. Glucose deprivation is a condition in which cells heavily rely on oxidative phosphorylation for ATP generation. Autophagy is activated, but its flux is hindered at the autolysis step, primarily due to an impairment of lysosomal acidity. Cells undergoing replicative senescence also experience AFI, which is also known to be caused by lysosomal acidity failure. Both glucose deprivation and replicative senescence elevate levels of reactive oxygen species (ROS), affecting lysosomal acidification. Mitochondrial alterations play a crucial role in elevating ROS generation and reducing lysosomal acidity, highlighting their association with autophagy dysfunction and disease conditions. This paper delves into the underlying molecular and cellular pathways of AFI in glucose-deprived cells, providing insights into potential strategies for managing AFI that is driven by lysosomal acidity failure. Furthermore, the investigation on the roles of mitochondrial dysfunction sheds light on the potential effectiveness of modulating mitochondrial function to overcome AFI, offering new possibilities for therapeutic interventions.

Development of the Booklet ″Prevention and Management of Hypertension for Older Adults″

  • Kim, Kyungwon;Hyunjoo Kang;Eunmi Shin;Kim, Hee-Seon
    • Journal of Community Nutrition
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    • 제6권1호
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    • pp.26-34
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    • 2004
  • Hypertension is prevalent among older adults, and nutrition is important for hypertension management. However, there are few nutrition education materials developed for older adults. The purpose of this study was to develop a booklet for prevention and management of hypertension for older adults. Based on lesson plans, topics for the booklet included introduction to hypertension, hypertension prevention through weight management, nutritional management of hypertension, and lifestyle modifications. After several revisions of the draft were made, illustrations and icons appropriate to the text were designed by a graphic designer using Illustrator 9.0 and Photoshop 6.0. The booklet consisted of four chapters and 40 pages. The first chapter dealt with information on hypertension, risk factors, complications and dietary guidelines. These were mainly explained by illustrations and characters of older adults. The second chapter included assessment of obesity, reducing fat intake and behavioral change strategies. The third chapter focused on practical tips for reducing salt, eating more fiber and calcium, and sample menus. The fourth chapter presented information for quitting smoking and drinking, and stress management. Finally, games, meal planning and quizes, were presented as reinforcement. Based on pilot testing with 10 adults aged 50 and older, minor changes were made in wording, expressions and information. This booklet is characterized by using simple and specific messages, providing tips for dietary and lifestyle changes, and using illustrations and characters of older adults to increase understanding. The revised booklet is self-explanatory and can be used by older adults or in nutrition education for older adults.

국제의료기관평가를 경험한 임상간호사의 조직몰입 영향요인 (Factors Influencing Organizational Commitment Experienced the JCI(Joint Commission International) in Hospital Nurses)

  • 최정실;양남영
    • 디지털융복합연구
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    • 제12권6호
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    • pp.439-447
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    • 2014
  • 목적: 본 연구는 국제의료기관평가를 경험한 임상간호사의 조직몰입 정도에 영향을 미치는 요인을 규명하기 위해 시도되었다. 연구방법: 본 연구는 서술적 조사연구로 구조화된 설문지로 진행하였다. 연구도구로는 일반적 특성 9문항, 국제의료기관평가에 대한 인식(Yang & Choi, 2014) 16문항, 평가관련 직무스트레스(Park, 2005) 5문항, 조직몰입(Mowday, Porter, & Steers, 1979) 15문항을 사용하여 측정하였다. 연구결과: 임상간호사가 지각한 국제의료기관평가에 대한 인식 정도는 5점 만점에 3.21점, 평가관련 직무스트레스 정도는 5점 만점에 4.08점, 조직몰입 정도는 5점 만점에 2.65점이었다. 임상간호사의 일반적 특성 중 학력(F=3.59, p=.029)에 따라 조직몰입 정도에 차이가 있었고, 국제의료기관 평가를 경험한 임상간호사가 지각한 조직몰입 정도는 국제의료기관평가에 대한 인식 정도와 정의 상관성을 나타냈고, 직무스트레스 정도와는 부의 상관성을 나타냈다. 조직몰입 정도에 대한 설명력은 26.3%이었고, 학력, 국제의료기관평가에 대한 인식 정도 및 평가관련 직무스트레스가 영향요인으로 확인되었다. 결론: 본 연구를 통하여 국제의료기관평가는 임상간호사의 조직몰입 정도에 유의하게 영향을 미쳤다는 것을 확인할 수 있다. 또한 이러한 결과는 국제의료기관 평가에 대한 인식을 강화하고 평가관련 직무스트레스를 감소시키는 전략을 수립하는 데 유용하게 활용될 것이다.

Roles of YehZ, a Putative Osmoprotectant Transporter, in Tempering Growth of Salmonella enterica serovar Typhimurium

  • Kim, Seul I;Ryu, Sangryeol;Yoon, Hyunjin
    • Journal of Microbiology and Biotechnology
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    • 제23권11호
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    • pp.1560-1568
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    • 2013
  • Salmonella, a main cause of foodborne diseases, encounters a variety of environmental stresses and overcomes the stresses by multiple resistance strategies. One of the general responses to hyperosmotic stress is to import or produce compatible solutes so that cells maintain fluid balance and protect proteins and lipids from denaturation. The ProP and ProU systems are the main transport systems for compatible solutes. The OsmU system, recently identified as a third osmoprotectant transport system, debilitates excessive growth as well by reducing production of trehalose. We studied a fourth putative osmoprotectant transport system, YehZYXW, with high sequence similarity with the OsmU system. A Salmonella strain lacking YehZ, a predicted substrate-binding protein, did not suffer from hyperosmolarity but rather grew more rapidly than the wild type regardless of glycine betaine, an osmoprotectant, suggesting that the YehZYXW system controls bacterial growth irrespective of transporting glycine betaine. However, the growth advantage of ${\Delta}yehZ$ was not attributable to an increase in OtsBA-mediated trehalose production, which is responsible for the outcompetition of the ${\Delta}osmU$ strain. Overexpressed YehZ in trans was capable of deaccelerating bacterial growth vice versa, supporting a role of YehZ in dampening growth. The expression of yehZ was increased in response to nutrient starvation, acidic pH, and the presence of glycine betaine under hyperosmotic stress. Identifying substrates for YehZ will help decipher the role of the YehZYXW system in regulating bacterial growth in response to environmental cues.

Analyzing Soybean Growth Patterns in Open-Field Smart Agriculture under Different Irrigation and Cultivation Methods Using Drone-Based Vegetation Indices

  • Kyeong-Soo Jeong;Seung-Hwan Go;Kyeong-Kyu Lee;Jong-Hwa Park
    • 대한원격탐사학회지
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    • 제40권1호
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    • pp.45-56
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    • 2024
  • Faced with aging populations, declining resources, and limited agricultural productivity, rural areas in South Korea require innovative solutions. This study investigated the potential of drone-based vegetation indices (VIs) to analyze soybean growth patterns in open-field smart agriculture in Goesan-gun, Chungbuk Province, South Korea. We monitored multi-seasonal normalized difference vegetation index (NDVI) and the normalized difference red edge (NDRE) data for three soybean lots with different irrigation methods (subsurface drainage, conventional, subsurface drip irrigation) using drone remote sensing. Combining NDVI (photosynthetically active biomass, PAB) and NDRE (chlorophyll) offered a comprehensive analysis of soybean growth, capturing both overall health and stress responses. Our analysis revealed distinct growth patterns for each lot. LotA(subsurface drainage) displayed early vigor and efficient resource utilization (peaking at NDVI 0.971 and NDRE 0.686), likely due to the drainage system. Lot B (conventional cultivation) showed slower growth and potential limitations (peaking at NDVI 0.963 and NDRE 0.681), suggesting resource constraints or stress. Lot C (subsurface drip irrigation) exhibited rapid initial growth but faced later resource limitations(peaking at NDVI 0.970 and NDRE 0.695). By monitoring NDVI and NDRE variations, farmers can gain valuable insights to optimize resource allocation (reducing costs and environmental impact), improve crop yield and quality (maximizing yield potential), and address rural challenges in South Korea. This study demonstrates the promise of drone-based VIs for revitalizing open-field agriculture, boosting farm income, and attracting young talent, ultimately contributing to a more sustainable and prosperous future for rural communities. Further research integrating additional data and investigating physiological mechanisms can lead to even more effective management strategies and a deeper understanding of VI variations for optimized crop performance.

노인장기요양 인력의 직무 스트레스와 직무 만족이 이직 의도에 미치는 영향 (The Impact of Work Stress and Job Satisfaction on Turnover Intention: A Study of Long-term Care Workers)

  • 이주재
    • 한국노년학
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    • 제31권2호
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    • pp.277-290
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    • 2011
  • 이 연구는 노인장기요양 인력의 직무 스트레스와 직무 만족이 이직 의도에 미치는 영향을 살펴보고, 이들의 이직 의도를 감소시키기 위한 제언을 하고 있다. 장기요양서비스를 제공하는 인력의 높은 이직률이 노인들에 대한 서비스 연속성과 서비스 질을 방해하고 있기 때문에 이직에 대한 해결책이 필요하다. 연구 대상은 전남지역 노인장기요양기관에 근무하는 사회복지사, 간호사, 요양보호사를 포함하는 직원 235명이다. 조사 기간은 2009년 7월 1일부터 10일까지 진행하였고, 자료수집은 자기기입식 방법의 설문지를 활용하여 수집하였으며, 분석방법으로 SPSS 12.0을 이용하여 회귀분석을 실시하였다. 이 연구에서 사용한 직무스트레스 척도는 MBI의 정서적 탈진 척도롤 활용하였고, 직무 만족은 한국노동패널의 전반적 직무만족도 척도를 활용하였으며, 이직 의도는 조직구성원의 자발적 이직 의도를 측정하는 척도를 활용하였다. 분석 결과에 의하면, 사회인구학적 특성으로 연령, 교육수준, 직위, 기관위치 등의 변수가 유의미한 영향을 미쳤고, 직무 스트레스와 직무 만족 변수도 이직 의도에 유의미한 영향을 끼쳤다. 연구 결과를 통해 이직 의도를 예방하기 위하여 직무 스트레스를 줄이고, 직무 만족을 높이는 전략이 필요함을 확인하였다. 결론으로 장기요양 인력의 이직 의도를 예방하기 위한 제도적 실천적 함의를 제언하였다.

병원종사자의 직업성 스트레스에 관한 연구 - 서울시내 500병상 이상 병원종사자를 중심으로 - (Occupational Stress of Hospital Workers)

  • 이우천
    • 한국병원경영학회지
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    • 제3권1호
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    • pp.1-33
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    • 1998
  • The purpose of this thesis is to study theoretical access to the methods that have been used for the research of occupational stress, thereby providing management methods of occupational stress of hospital workers. With a stress model of hospital workers set up from the viewpoint of organization management, 929 sets of questionnaires were collected from intern doctors, resident doctors, nurses, nursing aides, pharmacists, medical technicians, workers in patient affairs(reception and medical insurance workers), administrators and clerks from the 8 hospitals in Seoul with more than 500 beds. Upon variance analysis, correlation analysis and regression analysis of the collected questionnaires, this work examined how differences in stress caused by specific occupations and formulated a method of stress management for the hospital workers. The results are as follows. 1) If some duties of the nurses suffering from role-overloaded stress are transferred to the nursing aides dissatisfied with insufficient role, the two grunting groups can be satisfied at the same time. It is also necessary to transfer some jobs of the overloaded workers in patient affairs to the administrators, or the other way around. To reduce stress of conflict and ambiguity of role caused by the obscure division of roles between the workers, the role of each occupation should be delineated and the clear division of roles should be translated into action strictly according to that delineated. 2) Stress of inefficiency of organization from which the student doctors suffer can be relieved by management of participation. If they have access to the process of decision-making in general hospital affairs and consequently their understanding and the autonomy of job performance are promoted, such stress will be reduced. 3) To cope with stress of career development from which nurses, medical technicians, administrators, workers in patient affairs suffer, it is necessary to establish whether they have a chance to revive their careers, whether there are any ways of remotivation for less contributive workers, and whether they encourage each other to develope their careers. If they are given a chance to develope their careers, such stress will be relieved. 4) Pharmacists, suffering from stresses of living and personal relations, have strong cohesive power among themselves and organize a well-integrated team; thereby reducing the stress of personal relations and increasing productivity. 5) For administrators and student doctors confined to lesser social supports and for nurses and workers in patient affairs whose recognition of stress and job satisfaction are affected by social supports, emotional and informational supports for job performance help alleviate an individual's mental, and physical stress. 6) In addition to the above-mentioned stress-management methods, if an organizational coping strategy is provided according to the types of stress from the general viewpoint of the whole group of hospital workers, it would be of great help to managing stress. For example, the redesign of jobs, the management of objective, the improvement of working environment, the formation of an autonomous working group and various working plans can be set up for those who suffer from stress related to inappropriate role, while career counseling and development of career process can be provided for those dissatisfied with career development. Participation in the process of decision-making and the restructuring of the organization are needed for those who suffer from stress of malfunctioning organization, whereas creation of a supportive organizational atmosphere is desired for those who feel stressed due to personal relations. As well, such organizational coping strategies. as the increase of welfare facilities, seminars and educational programs and provision of health-promotion facilities can be provided.

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국내 자폐스펙트럼장애 아동에 대한 가족 중심 중재 효과: 체계적 고찰 - 부모 교육 및 부모 코칭 중심으로 - (Effects of Family-Centered Intervention for Children with Autism Spectrum Disorder in South Korea: A Systematic Review - Focusing on Parent Education and Parent Coaching -)

  • 최윤미;유은영
    • 대한감각통합치료학회지
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    • 제21권3호
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    • pp.65-78
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    • 2023
  • 목적 : 본 연구에서는 체계적 문헌 고찰을 통하여 국내 자폐스펙트럼장애 아동의 보호자를 대상으로 실시한 가족 중심 중재의 효과를 알아보고자 하였다. 연구방법 : 문헌검색은 2011년부터 2021년 사이의 문헌을 RISS, KISS, DBpia를 통하여 검색하였다. 검색어는 '자폐스펙트럼' OR '전반적발달장애' OR '고기능 자폐' OR '아스퍼거' AND '부모 교육' OR '가족중심중재' OR '부모코칭' OR '부모훈련' OR '가족참여' 등을 적용하였다. 선정 기준에 따라 최종적으로 11편의 실험연구를 선정하였다. 결과 : 연구 참가자의 일반적 특성, 중재 전략 및 효과, 중재 프로토콜을 확인한 결과, 연구대상은 영유아기 자폐스펙트럼장애 아동이 가장 많았고, 가족 중심 중재에 어머니들이 주로 참여하였다. 가족 중심 중재의 효과는 아동과 부모에게서 모두 나타났으며, 아동에게서는 상호작용 및 의사소통에 대한 효과가 가장 높은 비중을 차지하였고, 부모에게서는 양육 스트레스 감소 및 양육효능감 향상을 보였다. 중재 전략은 감각통합 중재, 반응적 의사소통 및 상호작용 중심 중재가 가장 많았고, 발달 중심 중재, 긍정적 행동 지원 중재(Positive Behavioral Supports; PBS), 중심축 반응 훈련(Pivotal Response Training; PRT)순으로 나타났다. 결론 : 본 연구의 결과를 통해 가족 중심 중재는 자폐스펙트럼장애 아동의 기능뿐만 아니라 부모의 양육 스트레스 및 양육효능감에 효과가 있음이 확인되었으며 임상 활용의 근거를 제시하였다는 점에서 의의가 있다.