• Title/Summary/Keyword: Stress adaptation

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Characteristic of Antibiotic Resistance of Foodborne Pathogens Adapted to Garlic, Allium sativum L.

  • Moon, Bo-Youn;Lee, Eun-Jin;Park, Jong-Hyun
    • Food Science and Biotechnology
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    • v.15 no.4
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    • pp.511-515
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    • 2006
  • Antibiotic resistance of foodborne pathogens adapted to garlic (Allium sativum Linn.) was determined in order to understand the relationship between antibiotic resistance and garlic. The Gram (-) strains of Escherichia coli and Salmonella typhimurium and the Gram (+) strains of Bacillus cereus and Staphylococcus aureus were subcultured consecutively in a garlic broth, and the surviving colonies on the agar were selected as the adapted strains. Minimal inhibitory concentrations (MIC) for 15 antibiotics on the adapted strains were determined on Muller-Hinton Infusion agar. Adaptation to 1.3%(v/v) garlic juice increased MIC for vancomycin, aminoglycoside, and erythromycin on B. cereus, and for ampicillin and erythromycin on E. coli O157:H7. MIC of aminoglycosides, chloramphenicol, and vancomycin on the adapted S. aureus increased. The adapted S. typhimurium was more resistant to penicillin and vancomycin than the non-treated strain. The adapted S. typhimurium and S. aureus lost their antibiotic resistance in non-garlic stress conditions. However, the adapted B. cereus was still resistant to erythromycin and vancomycin, and the adapted E. coli was also resistant to erythromycin. Antibacterial garlic might increase the antibiotic resistance of E. coli, B. cereus, S. aureus, and S. typhimurium and this resistance can continue even without the stress of garlic. Therefore, garlic as a food seasoning could influence the resistance of such pathogens to these antibiotics temporarily or permanently.

Psychiatric understanding and treatment of patients with amputations

  • Jo, So-Hye;Kang, Suk-Hun;Seo, Wan-Seok;Koo, Bon-Hoon;Kim, Hye-Geum;Yun, Seok-Ho
    • Journal of Yeungnam Medical Science
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    • v.38 no.3
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    • pp.194-201
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    • 2021
  • Amputation changes the lives of patients and their families. Consequently, the patient must adapt to altered body function and image. During this adaptation process, psychological problems, such as depression, anxiety, and posttraumatic stress disorder, can occur. The psychological difficulties of patients with amputation are often accepted as normal responses that are often poorly recognized by patients, family members, and their primary physicians. Psychological problems can interfere with rehabilitation and cause additional psychosocial problems. Therefore, their early detection and treatment are important. A multidisciplinary team approach, including mental health professionals, is ideal for comprehensive and biopsychosocial management. Mental health professionals could help patients set realistic goals and use adaptive coping styles. Psychiatric approaches should consider the physical, cognitive, psychological, social, and spiritual functions and social support systems before and after amputation. The abilities and limitations of physical, cognitive, psychological, and social functions should also be considered. To improve the patient's adaptation, psychological interventions such as short-term psychotherapy, cognitive behavioral therapy, mindfulness meditation, biofeedback, and group psychotherapy can be helpful.

The Stress analysis for a sectional stem shape of cement type hip implant using the finite element method (FEM을 이용한 cement type hip implant의 Stem 단면형상에 따른 응력분석)

  • Park H.S.;Lee M.K.;Chun H.J.;Choi K.W.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.651-652
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    • 2006
  • The choice of suitable hip implant is one of important factors in total hip replacement (THR). In clinical view points, improper adaptation of hip implant might cause abnormal stress distribution to the bone, which can shorten the lifespan of replaced hip implant. Currently, interest in custom-designed hip implants has increased as studies reveals the importance of geometric shape of patient's femur in modeling and designing custom hip implants. In this study, we have developed the custom-designed hip implant models with various sizes in hip implant, and the stress distribution in the bone was analyzed using Finite Elements methods. It was found that minimizing the gap between implant stem and femoral cavity is crucial to minimize stress concentration in the bone.

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A Study on the Variables Influencing Residential Stress Factors (주거환경 스트레스요인에 영향을 미치는 변인에 관한 연구)

  • 문숙재
    • Journal of the Korean Home Economics Association
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    • v.30 no.3
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    • pp.159-175
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    • 1992
  • The purpose of this study is to identify residential stress and to analyse the factors affect on it, based on the comprehensive theoretical model. For this purpose, 822 housewives were collected from the households in Seoul and Chonju-City. The main results obtained are as follows. 1. A significant proportion of the urban households surveyed are observed to suffer from residential stressors. The components of residential stressors are housing facilities, family living space, social interaction with the neighborhoods, physical condition of house. 2. Among the factors that affect residential stress the most important household environment factors are, the level of family controllability, which is followed by the family adaptation ability, the size of living space, the level of life satisfaction, and the type of housing tenure. The results of this study implies that residential stress is associated with not only residential size but also the level of housing facilities and social interaction. Overall upgrading of residential quality requires efficient allocation of living space and facilities on the basis of resident's needs. For instance, homeowners want more living space and renters want higher level of residential facilities.

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Analysis of Dietary Lifestyle of Chinese Students in Gwangju (광주광역시에 거주하는 재한 중국유학생의 식생활 분석)

  • QIN, LIN;Kim, Kyoung Yun;Yun, Jung-Mi
    • Journal of the Korean Society of Food Culture
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    • v.36 no.4
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    • pp.392-400
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    • 2021
  • With the globalization of Korean education and the rise in the average level of education, the number of international students in Korea, especially those from China, is rapidly increasing every year. This study aimed to provide the basic information for healthy dietary education by evaluating the dietary and nutritional status of Chinese students living in Gwangju province of Korea. Data from 468 subjects who met the study participation criteria and who had given their written informed consent were used for analysis. Of the total subjects, 52.4 and 80.1% were non-drinkers and non-smokers, respectively (p<0.01). It was observed that women were more stressed than men when they did not have convenient access to a Chinese food market near their place of residence (p=0.032). The subjects with a high cultural adaptation consumed kimbap (p<0.001) and pizza (p=0.017) more frequently than the subjects with a low cultural adaptation. An analysis of the nutrient quotient revealed that male scores were higher than those of the females with regard to water intake (p=0.035) and exercise level (p=0.021). For Chinese students living in Korea to maintain proper dietary habits, it is necessary to educate them on how to purchase convenience foods and improve their lifestyle, including limiting drinking and smoking. It is also necessary to develop emotional support programs for stress management and cultural adaptation.

A Grounded-theory Approach to the Process of Life Adaptation in Women with Cervical Cancer (자궁경부암 여성의 삶의 적응에 관한 근거이론적 접근)

  • Lee, Sook-Hee;Kim, Jeung-Im;Lee, Hae-Kyung;Kang, Nam-Mi;Kim, Hae-Won;Lee, Eun-Hee;Hur, Myung-Haeng;Park, Young-Sook
    • Women's Health Nursing
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    • v.10 no.1
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    • pp.32-41
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    • 2004
  • Purpose: The purpose of this study was to explore and describe the process of life adaptation in women with cervical cancer. Method: A grounded theory method with guided data collection and analysis was used. Fifteen women with cervical cancer who had some kind of treatment at the hospital were asked open-ended and descriptive questions with a guideline. All interviews were tape-recorded and transcribed verbatim. Result: The core category that emerged from the comparative analysis was "overcoming cancer" named as a process of life adaptation in the participants. The process of overcoming cancer evolved three stages - "admitting reality", "attempting health-care" and "continuing health-care". Depending on the paradigm model, the central phenomena of the experiences was "powerlessness". The internal factors motivating women to overcome cancer were "denial of cancer" and "desire for life". Strategies of overcoming cancer included "living as a cancer patient," "selective food eating," "steady exercising," "getting rid of stress," and "preparing for death". The intervening conditions, "supportive system," "forms of life," and "burden on family," influenced overcoming cancer. Conclusion: The results of this study could help clinical nurses to understand life adaptation in cervical cancer patients and establish efficient coping strategies in dealing with the problems they face.

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Impacts of Social Support and Acculturative Stress on Depression among Korean Registered Nurses in the United States (재미한인간호사의 사회적 지지, 문화적응 스트레스가 우울에 미치는 영향)

  • Jung, Young-Mi
    • The Journal of Korean Academic Society of Nursing Education
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    • v.20 no.2
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    • pp.192-202
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    • 2014
  • Purpose: The purpose of this study was to identify the impacts of social support and acculturative stress on depression among Korean registered nurses in the United States. Method: In total, 137 nurses were recruited through direct interviews and online surveys. The data were collected through a structured questionnaire from June 1, to September 16, 2012, and analyzed using descriptive statistics, t-test, ANOVA, Scheff$\acute{e}$'s test, Pearson correlation coefficient, and stepwise multiple regression with SPSS WIN 14.0. Results: Social support significantly differed by the length of one's nursing career in US, monthly income and perceived health status. Acculturative stress significantly differed by the length of one's nursing career in US and types of employment setting. Depression significantly differed by the total length of one's nursing career, type of employment setting, and perceived health status. Moreover, Depression was negatively correlated with social support; positively correlated with acculturative stress; social support was negatively correlated with acculturative stress. Factors influencing depression were acculturative stress, perceived health status, and social support, which explained about 23% of the total variance. Conclusion: These results suggest that an adaptation program that decreases acculturative stress and improves social support should be developed and implemented for Korean nurses to help them successfully integrate into the healthcare system of new country.

A Study on Relationship Between Job Stress, Burnout Experience and Job Satisfaction of Nurses (간호사의 직무스트레스, 소진경험 및 직무만족도에 관한 연구)

  • Sung, Mi-Hae;Yoon, Hyun Ok;Lee, Hyun Jung
    • Korean Journal of Occupational Health Nursing
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    • v.16 no.2
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    • pp.147-157
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    • 2007
  • Purpose: The purpose of this study was to identify job stress, burnout experience and job satisfaction in nurses and to identify their relationships. Method: The data were collected from 280 nurses employed in one general hospital, using the structured questionnaire. The data analyzed using SPSS Win program for descriptive statistics, t-test, ANOVA, and Pearson correlation coefficient. Result: There were significant differences in job stress, burnout experience and job satisfaction by current working unit, working period, scheduled to work as a nurse, cause to satisfaction, periods in night shift, level of adaptation, and health status. There was a significant positive correlation between job stress and burnout experience, and a inverse correlation between job stress and job satisfaction. Conclusion: The study findings show that job stress, burnout experience, and job satisfaction of nurses are correlated each other. Therefore, it is need to maintain a proper level of nurses' job stress and burnout experience through various ways to improve the situation. As a result, job satisfaction will be promoted and human resources will be managed appropriately.

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Drought Tolerance in Italian Ryegrass is Associated with Genetic Divergence, Water Relation, Photosynthetic Efficiency and Oxidative Stress Responses

  • Lee, Ki-Won;Woo, Jae Hoon;Song, Yowook;Lee, Sang-Hoon;Rahman, Md Atikur
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.42 no.3
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    • pp.208-214
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    • 2022
  • Drought stress is a condition that occurs frequently in the field, it reduces of the agricultural yield of field crops. The aim of the study was to screen drought-adapted genotype of Italian rye grass. The experiments were conducted between the two Italian ryegrass (Lolium multiflorum L.) cultivars viz. Hwasan (H) and Kowinearly (KE). The plants were exposed to drought for 14 days. The results suggest that the morphological traits and biomass yield of KE significantly affected by drought stress-induced oxidative stress as the hydrogen peroxide (H2O2) level was induced, while these parameters were unchanged or less affected in H. Furthermore, the cultivar H showed better adaptation by maintaining several physiological parameter including photosystem-II (Fv/Fm), water use efficiency (WUE) and relative water content (RWC%) level in response to drought stress. These results indicate that the cultivar H shows improved drought tolerance by generic variation, improving photosynthetic efficiency and reducing oxidative stress damages under drought stress. These findings can be useful to the breeder and farmer for improving drought tolerance in Italian rye grass through breeding programs.

Rice plants regenerated under saline conditions displayed salt tolerance and stress memory

  • Cho, Hyun Min;Chun, Hyun Jin;Kim, Min Chul
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.152-152
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    • 2017
  • Plants exposed to environmental stress for long durations often can adapt to stress conditions with improved tolerance. Moreover this acquired tolerance to stress can be retained even after reverting to destressed growth conditions, which is known to stress memory. In these adaptation and stress memory processes, epigenetic regulation, such as DNA methylation and histone modifications play a key role. Here, we showed that regenerated rice plants from embryogenic callus exposed to gradually increasing NaCl concentrations (up to 120 mM NaCl) acquired salt tolerance and their enhanced tolerance are inherited to subsequent generations. The rice plants (R0) regenerated from rice callus under saline conditions were transplanted into normal paddy field and R1 seeds were harvested. These R1 seeds displayed higher germination rate on MS medium containing 100mM NaCl than wild-type. The callus derived from R1 seeds showed better growth than control callus on high salinity medium. And the salt-adapted R1 plants exhibited higher chlorophyll contents and also higher $K^+/Na^+$ ratio than wild-type rice under saline conditions. The results indicated that rice plants successfully adapted to saline growth conditions during regeneration on high salt medium and moreover this acquired tolerance to salt stress was inherited subsequent generation.

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