• 제목/요약/키워드: ways of controlling variables

검색결과 22건 처리시간 0.025초

근골격계 만성통증 환자의 통증신념과 통증정도, 대처양상 및 통증생활방해정도와의 관계 (Relationships among the Pain Belief, Pain Coping, and Pain Disability of Patients with Chronic Musculoskeletal Pain)

  • 최성남;김정화
    • 재활간호학회지
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    • 제15권1호
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    • pp.30-38
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    • 2012
  • Purpose: The purpose of this study was to understand the degree of pain belief in musculoskeletal patients, and to identify the correlation with chronic pain, pain coping and pain disability. Methods: A total of 203 inpatients or outpatients with chronic pain in orthopedics agreed voluntarily to participate in this study and answer a questionnaire. Data were analyzed using SPSS/WIN 17.0 program with descriptive statistics, t-test, ANOVA, Scheffe test, Pearson's correlation coefficient, and simple linear regression. Results: The degree of pain belief in this study showed statistically significant differences depending on their age, education, job, health status, and pain duration. Among the variables correlating with pain belief in this study, there were positive correlations between pain and pain disability, pain and passive coping, pain belief and passive coping, pain belief and pain, pain belief and pain disability. The strongest correlation was passive coping and pain disability. Conclusion: From the results of this study, we concluded that it is necessary to develop the nursing intervention which can help reducing negative pain belief in patients with chronic musculoskeletal pain. Also we need to enhance the ways of coping to active or chronic pains for controlling them effectively.

양돈농가 경영관리별 인식이 MSY에 미치는 영향 (Effects of Marketted-pigs per Sow per Year to recognition of Hog Farm Business Management)

  • 최현호;신정섭;서동균;천동원
    • 한국산학기술학회논문지
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    • 제16권6호
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    • pp.3837-3844
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    • 2015
  • 본 논문은 경영주의 양돈사양 항목별 성향이 MSY에 미치는 중요도를 제시함으로서 양돈농가별 효과적인 경영전략 수립에 방향을 제시하고자 수행하였다. 조사는 양돈농가 50호를 대상으로 하였으며 MSY을 종속변수로 하여 양돈사양 항목별 중요도(22항목)로 요인분석 및 회귀분석을 실시하였다. 분석결과, MSY 향상의 중요 요인으로는 예방접종이 필수적으로 나타났으며 성장단계별 구분사육, 온습도 및 환기관리, 방역 및 위생관리 순으로 유의하게 나타났다. 이러한 결과를 토대로 양돈농가에 MSY 향상의 중요한 요인을 제시함으로써 경영전략을 수립할 수 있을 것이다.

고강도 강판 성형 공정의 스프링백 제어 (Springback Control in the Forming Processes for High-Strength Steel Sheets)

  • 양우열;이승열;금영탁;황진영;윤치상;신철수;조원석
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2003년도 제4회 박판성형 심포지엄
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    • pp.35-40
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    • 2003
  • In order to develope springback control technology for high-strength steel sheets, some studies have been conducted: dome stretching test, stepped s-rail forming and springback measurement, and optimally shaped initial blank design. First, to find out the formability of TRIP60, dome stretching test was performed. Next the stepped s-rail die, which was designed to form a channel type panel with large twist and wall curl, was manufactured and used to know the effect of controlling forming variables, such as blank holding force and flange amount on the springback. Furthermore, new measurement method of the springback was introduced to define wall curl and twist in geometrically complex panels. Finally, the optimally shaped initial blank was employed to verify one of the best ways to control the springback in channel type, high strength sheet panels.

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초등과학 영재학생의 개방적 탐구 활동에서 나타난 참과학탐구의 특정 분석 (Analysis of Features Related to Authentic Science Inquiry Appear in Open-ended Activities of the Elementary Science-gifted Students)

  • 강은주;김선자;박종욱
    • 영재교육연구
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    • 제19권3호
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    • pp.647-667
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    • 2009
  • 이 연구에서는 초등과학 영재학생의 개방적 탐구 활동에서 나타난 참과학탐구의 특징을 분석하여 효과적인 영재교육 프로그램이 되기 위한 방안을 제시하고자 하였다. 이를 위하여 청주교대부설 과학영재교육원의 여름집중교육에서 실시하는 탐구토론대회에 참가한 초등과학 영재학생 5명으로 이루어진 한 소집단을 선정하였고, 계획단계에서부터 탐구결과 정리 단계까지 학생들의 상호작용과 수행 과정을 녹음 녹화하였다. 수집된 자료는 참과학탐구의 인식론적 측면과 인지과정 측면의 특징을 토대로 분석하였다. 분석 결과 영재학생들의 개방적 탐구 활동에서는 참과학탐구의 인식론적 특징인 이론 의존성과 지식의 사회적 구성이 나타났다. 학생들은 탐구 과제의 이해 및 실험 설계에 대해서 이야기를 할 때 사고 실험이나 과학적 개념에 대해서 자주 언급했다. 또한 인지과정 측면에서는 연구 설계 부분의 특징이 두드러지게 나타났는데, 주로 변수선택, 과정 계획, 변수 통제, 측정 계획 등에서 참과학탐구와 유사한 특징을 보였다.

지역의 경제수준에 따른 의료자원 분포의 형평성 분석 (Socioeconomic Equity in Regional Distribution of Health Care Resources in Korea)

  • 전보영;최수민;김창엽
    • 보건행정학회지
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    • 제22권1호
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    • pp.85-108
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    • 2012
  • One of the ways to achieve the principle of equal access for equal needs, availability and geographical accessibility of health care resources regardless of resident sites is important. The purpose of this paper is to measure socioeconomic inequities in distribution of health care resources among regions in the Republic of Korea (hereafter Korea). Data were extracted from regional statistics of National Health Insurance, Community Health Survey, Korea Social Science Data Archive, and Korean Statistical Information Services at the same period of 2009. The dependent variables were the number of health workforce and health care facilities in each region. The proxy indicator of regional socioeconomic status was local tax per person. To identify whether inequalities among regions, we examined the concentration index(CI) and indirectly standardized CI by controlling each region's demographics and need factors. Total observations were 232 districts in nationwide, and we analyzed separately Seoul(25 districts) and non-Seoul areas(207 districts). The standardized CI values of health care resources were positive(favoring the rich region) across the nation in almost all kinds of resources. Especially the number of specialist, dentist, dental clinics, clinics, oriental medical clinics, pharmacists, and pharmacies were statistically significantly favoring the rich region. But the CI for the number of long-term care hospitals, public health centers were negative(favoring the poor region). The tendency of CI presenting positive values were increased in Seoul area. But in the case of non-Seoul, the CI indexes were nearly zero. The results suggest that except the Seoul area, little regional socioeconomic-related inequalities were observed in the distribution of health care resources in Korea.

Level of happiness and its association with food literacy among Seoul citizens: results from Seoul Food Survey 2021

  • Hyelim Yoo;Eunbin Jo;Hyeongyeong Lee;Eunji Ko;Eunjin Jang;Jiwon Sim;Sohyun Park
    • Nutrition Research and Practice
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    • 제18권1호
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    • pp.119-131
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    • 2024
  • BACKGROUND/OBJECTIVES: Happiness is an important factor in life, and food literacy (FL) has been emphasized as a core concept for a happy and healthy life. This study examined the level of happiness of Seoul citizens according to their sociodemographic factors and their association with FL. SUBJECTS/METHODS: This study used the data from the Seoul Food Survey, a cross-sectional study conducted on 4,039 Seoul citizens from September to October 2021. FL was measured using a validated questionnaire consisting of 33 items from 3 sub-domains: 14 items in the nutrition and safety domain, 8 items in the cultural and relational domain, and 11 items in the socio-ecological domain. Statistical analysis involved descriptive statistics and multivariate regression analysis. RESULTS: Various sociodemographic factors, such as household income, subjective health status, and food insecurity, were found to be associated with the level of happiness. The level of FL was also associated with the happiness scores. After adjusting for variables associated with happiness, the participants with the highest quartile FL scores were 7.32 times more likely to respond that they were happy than those with the lowest FL score. Three FL domains and total FL showed linear increases in overall happiness after controlling for subjective health status and sociodemographic factors (P < 0.001). CONCLUSIONS: After adjusting for the related covariates, higher levels of FL were associated with higher scores in happiness. Based on this study, it would be meaningful to evaluate ways to intervene in FL to improve the level of happiness among the general population.

'즐거움'은 지지적 정서 표현을 유발한다 ('Joy' Promotes Supportive Reactions in Social Interactions)

  • 임낭연;신지은;홍성우;서은국
    • 감성과학
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    • 제16권2호
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    • pp.221-234
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    • 2013
  • 행복은 대인관계 측면에서 긍정적인 결과를 산출한다. 그러나 구체적으로 행복한 사람들의 어떤 대인행동이 관계적으로 긍정적 결과를 도출하는지에 대해서는 연구된 바가 많지 않다. 상호작용 시 상대방에게 지지적인 정서를 표현해주는 것은 관계의 형성과 만족에 중요한 역할을 한다. 본 논문에서는 두 개의 연구를 통하여 고각성의 긍정적 정서인 '즐거움'이 상호작용 시 상대방에 대한 지지적인 정서 표현을 유발하는지 알아보고자 한다. 연구 1에서는 긍정적 정서가 성격과 인지적 요인을 통제한 뒤에도 여전히 유의하게 지지적 정서 표현을 예측하였다. 긍정적 정서의 이러한 효과는 고각성 정서로 인한 것이었다. 연구 2에서는 '즐거움'이 유발된 참가자들이 '자랑스러움', '경이로움', '편안함'이 유발된 참가자들에 비해 타인의 이야기에 적극적으로 정서를 표현하고 상대를 지지하였다. 본 연구는 긍정적 정서가 대인 관계에 어떻게 이득을 주는지에 대한 단서를 제공함과 동시에, 그 중에서도 특히 '즐거움'이 사회적 관계 형성을 촉진하기 위해 진화되었을 가능성을 제안한다.

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스트레스 대처방식이 학업소진에 미치는 영향: 억제효과를 중심으로 한 단기 종단연구 (The Effects of Coping Strategies on Academic Burnout: A short-term Longitudinal Study Focused on Suppression Effects)

  • 신효정;최현주;이민영;노현경;김근화;장유진;이상민
    • 한국심리학회지:학교
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    • 제9권2호
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    • pp.289-309
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    • 2012
  • 본 연구는 학업소진에 대한 스트레스 대처방식의 영향력에 있어 적극적/소극적 스트레스 대처 유형 간 존재하는 억제효과를 구조방정식 모형으로 분석한 단기 종단연구이다. 연구대상은 서울지역 중학생 357명이었으며, 스트레스 대처방식 척도와 학업소진 척도(MBI-SS)를 사용하였다. 두 시점 자료에 존재하는 개인 내적인 변화를 반영하기 위해 단순선형회귀방정식으로부터 표준화된 잔차를 산출하여 각 변수의 변화량 잠재변수를 구성하였다. 본 연구의 결과는 다음과 같다. 첫째, 적극적 대처의 변화량과 소극적 대처의 변화량은 정적 상관을 갖는 것으로 나타났다. 즉, 학생들이 스트레스 상황에서 하나의 대처방식만을 사용하는 것이 아니라 동시에 여러 유형의 대처방식을 사용할 수 있는 것으로 나타났다. 둘째, 학업소진 변화량에 미치는 영향에 있어서 두 유형의 대처방식 변화량은 각기 다른 양상을 나타냈다. 즉, 적극적 대처의 변화량의 경우 단독으로 투입되었을 때보다 소극적 대처 변화량이 함께 투입되었을 때, 학업소진 변화량에 대한 부적 영향력이 강화되었다. 한편 소극적 대처의 변화량은 단독으로 투입되었을 때에는 나타나지 않았던 학업소진 변화량에 대한 정적 영향력이 적극적 대처방식이 함께 투입되었을 때 발견되었다. 이는 적극적 대처의 변화량과 소극적 대처의 변화량 간 억제효과가 있음을 시사하며, 특히 소극적 대처를 줄이고, 적극적 대처를 강화할 때 학생들의 소진을 영향력 있게 감소시킬 수 있음을 의미한다. 이상의 결과를 바탕으로 본 연구의 의의와 상담에서의 시사점을 논의하였다.

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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Studies on Manufacturing Wood Particle-Polypropylene Fiber Composite Board

  • Lee, Chan-Ho;Eom, Young-Geun
    • Journal of the Korean Wood Science and Technology
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    • 제29권3호
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    • pp.47-58
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    • 2001
  • For finding both ways of recycling the wood and plastic wastes and solving the problem of free formaldehyde gas emission through manufacturing wood particle-polypropylene fiber composite board without addition of formaldehyde-based thermosetting resin adhesive, control particleboards and nonwoven web composite boards from wood particle and polypropylene fiber formulation of 50 : 50, 60 : 40, and 70 : 30 were manufactured at density levels of 0.5, 0.6, 0.7, and 0.8 g/$cm^3$, and were tested both in the physical and mechanical properties according to ASTM D 1037-93. In the physical properties, control particleboard had significantly higher moisture content than composite board. In composite board, moisture content decreased with the increase of target density only in the board with higher content of polypropylene fiber and also appeared to increase with the increase of wood particle content at a given target density. Control particleboard showed significantly greater water absorption than composite board and its water absorption decreased with the increase of target density. In composite board, water absorption decreased with the increase of target density at a given formulation but increased with the increase of wood particle content at a given target density. After 2 and 24 hours immersion, control particleboard was significantly higher in thickness swelling than composite board and its thickness swelling increased with the increase of target density. In composite board, thickness swelling did not vary significantly with the target density at a given formulation but its thickness swelling increased as wood particle content increased at a given target density. Static bending MOR and MOE under dry and wet conditions increased with the increase of target density at a given formulation of wood particle and polypropylene fiber. Especially, the MOR and MOE under wet condition were considerably larger in composite board than in control particleboard. In general, composite board showed superior bending strength properties to control particleboard, And the composite board made from wood particle and polypropylene fiber formulation of 50 : 50 at target density of 0.8 g/$cm^3$ exhibited the greatest bending strength properties. Though problems in uniform mixing and strong binding of wood particle with polypropylene fiber are unavoidable due to their extremely different shape and polarity, wood particle-polypropylene fiber composite boards with higher performance, as a potential substitute for the commercial particleboards, could be made just by controlling processing variables.

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