• 제목/요약/키워드: Work locus of control

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Characterization of Pyrenophora graminea Markers Associated with a Locus Conferring Virulence on Barley

  • Mokrani, Lubna;Jawhar, Mohammad;Shoaib, Amina;Arabi, Mohammad Imad Eddin
    • The Plant Pathology Journal
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    • 제28권3호
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    • pp.290-294
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    • 2012
  • The fungus Pyrenophora graminea is the causal agent of barley leaf stripe disease. Two leaf stripe isolates PgSy3 (exhibiting high virulence on the barley cultivar 'Arabi Abiad') and PgSy1 (exhibiting low virulence on Arabi Abiad), were mated and 63 progeny were isolated and phenotyped for the reaction on Arabi Abiad. The population segregated in a 1:1 ratio, 32 virulent to 31 avirulent (${\chi}^2$ = 0.05, P = 0.36), indicating single gene control of PgSy3 virulence on Arabi Abiad. Among 96 AFLP markers identified, three AFLP markers, E37M50-400, E35M59-100 and E38M47-800 were linked to the virulence locus VHv1 in isolate PgSy3. The results of this study indicate that (the three markers) are closely linked to VHv1 and are unique to isolates carrying the virulence locus. This work represents an initial step towards map-based cloning of VHv1 in P. graminea.

진폐환자의 우울에 영향을 미치는 요인 (The Factors Affecting the Depression in Pneumoconiosis Patients)

  • 박주현;임현우;채정미;조현주;정혜선;조선진;이원철
    • 한국직업건강간호학회지
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    • 제16권1호
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    • pp.28-36
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    • 2007
  • Objectives: The objective of this study was to analyze factors affecting depression in pneumoconiosis patients. Methods: The subjects were 200 pneumoconiosis patients hospitalized in Pneumoconiosis Hospitals in An-san and Tae-beck. Collected 114 surveys were used in this study among 200 surveys since 86 surveys offered insufficient data. SAS for Windows 8.01 was used to analyse the data Results: Percentage of normal and mild depression is 2.6%, Percentage of moderate depression is 14.9%, Percentage of severe depression is 79.8%. In order to analyze the factors affecting depression rate, the factors with p-values less than 0.1, such as age, education, religion, work department, hospitalized period, physical pain existence, daily living ability, family supports and internal locus of control, were selected as independent factors and analyzed using a stepwise multiple regression. As results, the factor that affected the rate of depression were of the age, education, ADL(Activities of Daily Living), the internal locus of control, family support. Conclusion: It is necessary to develop health program which can improve the patient's ADL(Activities of Daily Living), enforce internal locus of control to minimize the depression rate in pneumoconiosis patients.

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충북지역 교사들의 건강증진생활양식 (Determinant of the Health Promoting Lifestyle of the Teachers in Choong-Buk province)

  • 이규난;김순례
    • 지역사회간호학회지
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    • 제9권1호
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    • pp.30-39
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    • 1998
  • The purpose of this study was to identify the factors influencing health promoting lifestyle of teachers and to provide the data for efficient health management of teachers. The subjects of this study were eight hundred nine teachers, who were chosen in Choong-Buk province. Survey Questionaires for data analysis were collected through visiting or mailing from September 1 to 30, 1997. The instruments used in this study were HPLP(Health Promoting Lifestyle Profile) by Walker (1987), Internal Health Locus of Control by Walston et al. (1978), Self Esteem by Rogenberg(1965), Importance of Health by Muhlenkamp (1985), Self Efficacy by Sherer & Maddux(1982), and Family Function by Olson & Schellenberg (1985). Data were analyzed by descriptive statistics, unpaired t-test, ANOVA, Pearsons correlation coefficient and stepwise multiple regression using SPSS/PC(v. 4.01) program. The results were as follows; 1. The mean of health promoting lifestyle was total 2.53 on the average, self-actualization 2.97, nutrition 2.90, interpers 52, stress management 2.33, exercise 1.91, and health responsibility 1.82 in order. The index of total health promoting lifestyle was significantly influenced by the factors including sex, age, religion, marital status, duration of work, teaching load, education level and number of family members. 2. The health promoting Lifestyle was significantly positive correlated with Self Efficacy, Family Function, Importance of Health, Internal Health Locus of Control and Self Esteem. 3. Self Efficacy was the most influential determinant predicting health promoting lifestyle of teachers. Self efficacy, Family Function, Importance of Health, Internal Health Locus of Control and Age explained 42% of the health promoting lifestyle. Based on the above findings, it is suggested to develop nursing intervention to improve Self Efficacy, Importance of Health, Family Function of teachers enhance health promoting lifestyle. Further studies are needed to confirm these findings and to determine factors which significantly influence health promoting lifestyle of teachers.

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활동적 노인의 성격, 직무동기 및 직무만족 사이의 관계 (The relatioships of personality, job motivation, and job satisfaction among older empoyees)

  • 박인조;이주일
    • 한국심리학회지 : 문화 및 사회문제
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    • 제21권3호
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    • pp.395-417
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    • 2015
  • 본 연구의 목적은 첫째, 노동 현장에서 일하는 활동적 노인의 직무만족과 직무동기를 예측하는 성격변인을 탐색하는 것이었다. 둘째, 활동적 노인의 직무동기와 직무만족을 설명하는 가장 적절한 경로모형을 구축하는 것이었다. 셋째, 활동적 노인의 성격과 직무만족 사이를 매개하는 직무동기의 효과성을 검증하는 것이었다. 연구의 참가자들은 춘천에 거주하는 만65세 이상의 활동적 노인 280명이었다. 280명 중에서 남성은 122명(43.6%), 여성은 158명(56.4%)였으며 연령 범위는 65세에서 88세 사이였다. 위계적 회귀분석 결과, 우호성, 성실성, 내적 통제감이 유의하게 직무동기를 정적으로 예측하고 개방성과 신경증성이 부적으로 예측했다. 우호성, 성실성, 자존감, 내적 통제감이 각각 직무만족을 정적으로 예측했다. 회귀모형결과의 유의하게 나온 변인들과 선행 연구에 기초해서 3개의 경로모형을 탐색했으며 모형2(성격변인인 개방성, 신경성, 내적통제, 우호성, 성실성, 자존감과 직무만족 사이를 직무동기가 매개하는 모형)와 모형 3(내적통제, 우호성, 성실성, 자존감과 직무만족 사이를 직무동기가 매개하는 모형)이 적합했고 이 중에 모형 3을 최종 모형으로 선택했다. 마지막으로, 우호성, 성실성, 내적 통제와 직무만족 사이를 직무동기가 매개한다는 결과를 얻었다. 논의에서 본 연구의 활동적 노인의 성격, 직무동기, 직무만족 관계를 밝힌 의의와 생산적 노년개념의 한계점 및 향후 연구과제에서 노동현장에서의 활동적 노인 연구에 대해 제안하였다.

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도시철도기관사의'일과 삶의 균형'에 관한 연구 : 선행변인과 후행변인의 탐색 (A Study on the 'Work-Life Balance' of Metro Drivers : Exploration of Precedence and Antecedence)

  • 김중곤;신택현;신준우;알리셰르 베르디예프
    • 대한안전경영과학회지
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    • 제17권3호
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    • pp.65-79
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    • 2015
  • This study intended to investigate exploratorily the precedent factors affecting two types of perceived balances between work and life(family/leisure) and the antecedent ones affected by them, focusing on the metro train drivers. To attain this purpose, literature survey on the precedent factors, work-life balance, and antecedent factors was performed, and the study model was designed based on this survey, and then this model was analyzed empirically using Multiple-Regression. The results on the precedent factors showed that Job Demand, Self-Efficacy, and Age have significant effects on the negative transfer of work. On the other hand, it was shown that Affiliative Culture, Self-Efficacy, and Internal Locus of Control have significant effects on the family centered balance. And the results on the antecedent factors showed that family centered balance has significant effects on Job Satisfaction, Psychological Depression and Fatigue, Safety Behavior, and accident, and the negative transfer of work has significant effects on Physical and Psychological Depression and Fatigue, Emergency Stress, and Safety Behavior.

대학병원 병동 및 수술실 근무 간호사의 사회심리적 스트레스와 피로수준에 관련된 요인 (Factors Related to Psychosocial Stress and Fatigue Symptom Among Nurses Working at Ward and Operating Room in University Hospitals)

  • 박안숙;손미경;조영채
    • 한국산학기술학회논문지
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    • 제14권4호
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    • pp.1781-1791
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    • 2013
  • 본 연구는 근무특성이 다른 병동과 수술실에 근무하고 있는 간호사들의 인구사회학적 특성, 건강관련행위 특성, 직업적 특성, 직무스트레스 요인 및 사회심리적 요인에 따른 스트레스와 피로수준을 비교 분석하고자 시도하였다. 연구대상은 대전광역시에 소재하고 있는 4개 대학병원의 병동근무 간호사 220명, 수술실근무 간호사 147명, 합계 367명으로 하였으며, 2012년 7월 1일부터 8월 31일까지의 기간 동안에 구조화된 무기명 자기기입식 설문조사를 실시하였다. 연구결과, 사회심리적 스트레스에 관련된 요인으로 병동근무 간호사에서는 연령, 주관적인 건강상태, 근무경력, 업무에 대한 만족도, 업무에 대한 적성, 업무요구도, 업무자율성, 동료의 지지도, 자기존중감, 통제신념 및 A형 행동유형이 지적되었고, 수술실근무 간호사에서는 연령, 수면시간, 주관적인 건강상태, 근무경력, 업무의 신체적 부담정도, 업무에 대한 만족도, 업무에 대한 적성, 직업전환의사, 업무요구도, 업무자율성, A형 행동유형이 지적되었다. 피로수준에 관련된 요인으로 병동근무 간호사에서는 연령, 여가시간 여부, 주관적인 건강상태, 업무에 대한 만족도, 직업전환의사, 업무요구도, 통제신념, A형 행동유형이 지적되었고, 수술실근무 간호사에서는 연령, 주관적인 건강상태, 업무의 신체적 부담정도, 상사의 지지도, 동료의 지지도, 통제신념이 지적되었다. 이와 같은 결과를 볼 때 간호사의 근무부서에 따른 스트레스와 피로수준에 관련된 요인에 차이가 있음을 알 수 있으며 근무부서별 스트레스와 피로수준을 적절하게 통제할 수 있는 프로그램개발 및 실행이 필요하다고 생각된다.

Control Strategy and Stability Analysis of Virtual Synchronous Generators Combined with Photovoltaic Dynamic Characteristics

  • Ding, Xiying;Lan, Tianxiang;Dong, Henan
    • Journal of Power Electronics
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    • 제19권5호
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    • pp.1270-1277
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    • 2019
  • A problem with virtual synchronous generator (VSG) systems is that they are difficult to operate stably with photovoltaic (PV) power as the DC side. With this problem in mind, a PV-VSG control strategy considering the dynamic characteristics of the DC side is proposed after an in-depth analysis of the dynamic characteristics of photovoltaic power with a parallel energy-storage capacitor. The proposed PV-VSG automatically introduces DC side voltage control for the VSG when the PV enters into an unstable working interval, which avoids the phenomenon where an inverter fails to work due to a DC voltage sag. The stability of the original VSG and the proposed PV-VSG were compared by a root locus analysis. It is found that the stability of the PV-VSG is more sensitive to the inertia coefficient J than the VSG, and that a serious power oscillation may occur. According to this, a new rotor model is designed to make the inertial coefficient automatically change to adapt to the operating state. Experimental results show that the PV-VSG control strategy can achieve stable operation and maximum power output when the PV output power is insufficient.

우리나라 직장인 스트레스의 역학적 특성 (Epidemiology of Psychosocial Distress in Korean Employees)

  • 장세진;강명근;차봉석;박종구;현숙정;박준호;김성아;강동묵;장성실;이경재;하은희;하미나;고상백
    • Journal of Preventive Medicine and Public Health
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    • 제38권1호
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    • pp.25-37
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    • 2005
  • Objective : To estimate the magnitude of psychosocial distress and examine eligible factors associated with the development of psychosocial distress in Korean employees, using a nationwide sample. Methods : A total of 6,977 workers were recruited from 245 companies. A structured questionnaire was used to assess sociodemographics, health-related behaviors, job characteristics, social support at work, personality traits (locus of control, type A behavior pattern), self-esteem, and psychosocial distress. Results : The results showed that 23 % of workers were categorized as high stress, 73% as moderate, and 5% as normal. Hierarchical multiple regression analysis showed that psychosocial distress was more common in younger workers, both male and female. Regular exercise was negatively associated with increase of psychosocial distress. In job characteristics, as expected, low decision latitude, high job insecurity, and low social support at work were related to high psychosocial distress. Personality traits such as locus of control and type A behavior pattern, and self-esteem were more powerful predictors of psychosocial distress than general characteristics, health-related behavior, and job characteristics. There were some gender differences. While men who are less educated and single (unmarried, divorced, and separated) experienced higher levels of psychosocial distress than those who are educated and married, women who feel high job demand experienced higher levels of psychosocial distress than those who feel low job demand. Conclusions : The proportion of the high stress group was higher than expected, and psychosocial factors like social support and personality characteristics (e. g. locus of control, type A behavior pattern and self-esteem) were more significant factors for psychosocial distress than other variables. This finding suggests that some psychosocial factors, especially inadequate social support, low self-esteem and lack of internal locus of control for the development of psychosocial distress, will also operate as an intervention strategy in the worksite stress reduction program. It is strongly required that worksite stress reduction programs should be established in at both occupational and level as well as in individual levels.

라인 트레이싱을 위한 얀센 메커니즘 기구의 개발 (Development of a Jansen Mechanism for Line Tracing)

  • 권오순;김민수;김우은;손현우;임규도;이춘열
    • EDISON SW 활용 경진대회 논문집
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    • 제6회(2017년)
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    • pp.511-515
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    • 2017
  • Various walking robot platforms have been developed to carry out missions such as explorations, pass of obstacle or inspections of dangerous environments. In this work, a four legs mechanism based on Jansen mechanism is developed, which can trace a certain line. In order to maximize the tracing speed, mechanism design is performed in multiple phases using m.sketch, EdisonDesign and Arduino programs. In design process, control of power path and optimization of the locus of legs(GL/GAC) are found to be most important. A prototype model is constructed and test run to check the validity of the design optimization.

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산업장 교대근무 근로자의 건강증진행위 예측요인 (Predictive Factors of Health promotion behaviors of Industrial Shift Workers)

  • 김영미
    • 한국직업건강간호학회지
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    • 제11권1호
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    • pp.13-30
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    • 2002
  • Industrial shift workers feels suffer mental stresses which are caused by unfamiliar day sleep, noisy environment, sleeping disorder by bright light, unusual contacts with family, difficulty in meeting with friends or having formal social meetings and other social limitations such as the use of transportation. Such stresses influence health of the workers negatively. Thus the health promotion policy for shift workers should be made considering the workers' ways of living and shift work specially. This study attempted to provide basic information for development of the health promotion program for industrial shift workers by examining predictive factors influencing health promotion behaviors of those workers. In designing the study, three power generation plants located in Pusan and south Kyungsang province were randomly selected and therefrom 280 workers at central control, boiler and turbine rooms and environmental chemistry parts whose processes require shift works were sampled as subjects of the study. Data were collected two times from September 17 to October 8, 1999 using questionnaires with helps of safety and health managers of the plants. The questionnaires were distributed through mails or direct visits. Means for the study included the measurement tool of health promotion behavior provided by Park(1995), the tool of self-efficacy measurement by Suh(1995), the tool of internal locus of control measurement by Oh(1987), the measurement tool of perceived health state by Park(1995) and the tool of social support measurement by Paek(1995). The collected data were analyzed using SPSS program. Controlling factors of the subjects were evaluated in terms of frequency and percentage ratio Perceived factors and health promotion behaviors of the subjects were done so in terms of mean and standard deviation, and average mark and standard deviation, respectively. Relations between controlling and perceived factors were analyzed using t-test and ANOVA and those between perceived factors and the performance of health promotion behaviors, using Pearson's Correlation Coefficient. The performance of health promotion behaviors was tested using t-test, ANOVA and post multi-comparison (Scheffe test). Predictive factors of health promotion behavior were examined through the Stepwise Multiple Regression Analysis. Results of the study are summarized as follows. 1. The performance of health promotion behaviors by the subjects was evaluated as having the value of mean, $161.27{\pm}26.73$ points(min.:60, max.:240) and average mark, $2.68{\pm}0.44$ points(min.:1, max.:4). When the performance was analyzed according to related aspects, it showed the highest level in harmonious relation with average mark, $3.15{\pm}.56$ points, followed by hygienic life($3.03{\pm}.55$), self-realization ($2.84{\pm}.55$), emotional support($2.73{\pm}.61$), regular meals($2.71{\pm}.76$), self-control($2.62{\pm}.63$), health diet($2.62{\pm}.56$), rest and sleep($2.60{\pm}.59$), exercise and activity($2.53{\pm}.57$), diet control($2.52{\pm}.56$) and special health management($2.06{\pm}.65$). 2. In relations between perceived factors of the subjects(self-efficacy, internal locus of control, perceived health state) and the performance of health promotion behaviors, the performance was found having significantly pure relations with self-efficacy (r=.524, P=.000), internal locus of control (r=.225, P=.000) and perceived health state(r=.244, P=.000). The higher each evaluated point of the three factors was, the higher the performance was in level. 3. When relations between the controlling factors(demography-based social, health-related, job-related and human relations characteristics) and the performance of health promotion behaviors were analyzed, the performance showed significant differences according to marital status (t=2.09, P= .03), religion(F=3.93, P= .00) and participation in religious activities (F=8.10, P= .00) out of demography-based characteristics, medical examination results (F=7.20, P= .00) and methods of the collection of health knowledge and information(F=3.41, P= .01) and methods of desired health education(F=3.41, P= .01) out of health-related characteristics, detrimental factors perception(F=4.49, P= .01) and job satisfaction(F=8.41, P= .00) out of job-related characteristics and social support(F=14.69, P= .00) out of human relations characteristics. 4. The factor which is a variable predicting best the performance of health promotion behaviors by the subjects was the self-efficacy accounting for 27.4% of the prediction, followed by participation in religious activities, social support, job satisfaction, received health state and internal locus of control in order all of which totally account for 41.0%. In conclusion, the predictive factor which most influence the performance of health promotion behaviors by shift workers was self-efficacy. To promote the sense, therefore, it is necessary to develop the nursing intervention program considering predictive factors as variables identified in this study. Further industrial nurses should play their roles actively to help shift workers increase their capability of self-management of health.

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