• 여성건강간호학회지
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• 제10권4호
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• pp.360-367
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• 2004

Purpose: The purpose of this study was to develop an instrument to measure breastfeeding empowerment for the Korean mother, and to test the validity and reliability of the instrument. Method: The items of instruments used was based on literature review. Nineteen item scales were developed with five domains. In order to test reliability and validity of the scale, data was collected from 99 mothers who were within 4weeks, postpatum and 88 mothers who had had children within 1 year. Data was collected between September 2nd and 24th by a self-reported questionnaire. Result: The results were as follows: As a result of factor analysis three times, 19 items were selected from the total of 24 items. Five factors evolved by factor analysis, which explained 65.7% of the total variance. The first factor 'breastfeeding skill' explained 34.1%, the 2nd factor 'group empowerment' 10.6%, the 3rd factor 'breastfeeding will' explained 7.8%, the 4th factor 'social policy empowerment' 7.0%, and the 5th factor 'adherence to exclusive breastfeeding' 6.2%. Cronbach's alpha coefficient of this scale was .8781. Conclusion: The study supports the reliability and validity of the scale. Because the main concept of breastfeeding empowerment was breastfeeding skill, there were distinct differences in the dimensions of breastfeeding empowerment scales.

• 간호행정학회지
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• 제11권2호
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• pp.159-172
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• 2005

Purpose: The Purpose of this study was to development a verbal abuse scale for operating room nurses in Korea. Method: To achieve the purpose of the study, a questionnaire was developed to interview 30 nurses and distributed to 761 nurses who working at 28 general hospital in Korea from september 7 to November 25, 2004. Item analysis and factor analysis were carried out to validate violence predicting scale. Cronbach's Alpha coefficient was used to test reliability of the scale. The data were analyzed by using SPSS/WIN 11.5 program. Result: As a result of the item analysis and factor analysis, 17 items were selected from the total of 30 items, and four factors were labeled as 'self esteem abuse by nurses(7 items)', 'self esteem abuse by physicians(6 items)', 'sexual abuse by physicians(2 items)', 'colleague abuse by physicians(2 items)'. Four factors were explained by 60.8% out of the total variance. The first factor explained 35.456%, second factor explained 12.401% and third factor explained 6.637%. And fourth factor explained 6.304%. Reliability of the factors were tested by Cronbach's Alpha coefficient and result was 0.885. Conclusion: The scale was identified to be a tool with a high degree of reliability and validity. Therefore, this scale can be effectively utilized for assessment of verbal abuse for operating room nurses by nurses and physicians in Korea.

• 한국환경과학회지
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• 제11권1호
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• pp.63-68
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• 2002

In this study, we examined statistical analysis between sewage plant operations parameters and effluent quality We got six components from principle component analysis of the operation parameters and secondary effluent quality. 91.8% of the total variance was explained by the six components. The components were identified in the following order : 1) organic matter removal by aeration basin microbe, 2) settleability on secondary clarifier load, 3) removal of nutrients, 4) microbial number increasement and species diversity, 5) microbial activity in aeration basin, 6) oxidation in aeration basin.

• Communications for Statistical Applications and Methods
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• 제26권3호
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• pp.305-313
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• 2019

Generalized canonical correlation analysis (GCCA) extends the canonical correlation analysis (CCA) to the case of more than two sets of variables and there have been many studies on how two-set canonical solutions can be generalized. In this paper, we derive certain stationary equations which can lead the higher-order solutions of several GCCA methods and suggest a type of iterative procedure to obtain the canonical coefficients. In addition, with some numerical examples we present the methods for graphical display, which are useful to interpret the GCCA results obtained.

• 한국항만경제학회지
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• 제25권3호
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• pp.269-282
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• 2009

광양항의 수입컨테이너 물동량은 최근 들어 빠르게 증가율이 둔화되고 있다. 이에 본 고는 광양항의 물동량이 환율과 경기와 같은 경제변수에 대해 어떠한 특성을 갖는가를 전국항과의 비교를 통해 밝힌다. 광양항의 수입물동량은 환율과 경기의 변동에 전국항보다 큰 영향을 받으며, 최근의 환율과 경기의 움직임에 특히 민감하게 반응을 하여 안정적인 물동량을 유지하지 못하고 있음을 보인다. 이와 같이 민감한 반응을 보임에도 불구하고 장기추세로부터 괴리가 있을 경우 회복하는 속도는 전국항보다 늦어 상황에 대처하는 능력이 떨어지고 있다. 예측오류의 역사적 분해를 통해 광양항의 수입물동량은 환율변동에 상당부분을 의존하고 있어서 환율 상승과 같은 악재에 특히 취약할 수 있다. 그리고 환율충격과 경기충격은 상당기간 물동량의 흐름에 영향을 미치나 환율충격은음의 반응을, 경기충격은 양의 반응을 유발한다. 환율 40원 상승과 경기 5 포인트 하락이라는 단기적 충격에 대해 광양항의 수입컨테이너 물동량은 33천 TEU가 감소하며, 이러한 충격이 1년간 유지되면 광양항의 수입물동량은 197천 TEU 감소한다는 것을 보인다.

• 간호행정학회지
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• 제11권1호
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• pp.13-21
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• 2005

Purpose: The Purpose of this study was to identify the relationship between leadership styles and self-esteem, satisfaction of clinical practice in nursing students. Method:The subjects were 386 nursing students who were in college and university located around Seoul, Kyounggi, Chungchung, Kangwon province. The data were collected from July 26 to September 18, 2004 by the structured questionnaires. For data analysis, descriptive statistics, Pearson correlation coefficient, and stepwise multiple regression with SAS package were used. Results: 1. The score of the nursing students' transformational leadership were higher than that of the nursing students' transactional leadership. 2. The mean of satisfaction of clinical practice perceived by nursing students was 3.07, and its subcategories were practice contents 3.28, practice evaluations 3.11, practice hours 3.00, practice environments 2.99, practice directions 2.98. 3. 'Transformational leadership', 'charisma', 'intellectual stimulation' and 'individual consideration' were positively related to 'self-esteem', 'satisfaction of clinical practice' of nursing students. 4. 'Contingent reward' was positively related to 'self-esteem'. And 'Management by exception' was negatively related to 'self-esteem'. 5. 'Transactional leadership', 'Contingent reward' were positively related to 'satisfaction of clinical practice' of nursing students. 6. As a result of multiple regression analysis, the key determinants of 'self-esteem' were 'charisma' and this explained 27.41% of the total variance of it. And the key determinants of 'satisfaction of clinical practice' were 'charisma' and this explained 10.94% of the total variance of it.

• 대한간호학회지
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• 제38권1호
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• pp.122-130
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• 2008

Purpose: This study aimed to identify the associated factors of the perceived health status of the elderly in Korea and to provide basic data for developing nursing interventions for the elderly's health management. Methods: This study used a descriptive correlational research design. The subjects of this study were 335 elderly people over 60 yr living in an urban city. Data were collected through personal interviews using questionnaires from September 2006 to March 2007. Empirical indicators of perceived health status were measured by SF-36, nutritional screening initiative (NSI), activities of daily living (ADL) Index, and instrumental activities of daily living (IADL) scale. The collected data were analyzed by descriptive statistics, Pearson's correlation, and hierarchical regression. Results: The mean age of the subjects was 72.8 and 57.0% of subjects were female. 41.5% of variance in physical health was explained by nutrition, ADL, IADL, and the number of years attending school. Among them the most important factor was ADL. 13.2% of variance in mental health was explained the number of family, nutrition, and IADL. Among them the most important factor was nutrition. Conclusion: It is necessary to develop supportive interventions for improving the perceived health status of elderly people by considering the most important factors shown in this study.

• 대한간호학회지
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• 제47권2호
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• pp.257-266
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• 2017

Purpose: The aims of this study were to construct a hypothetical structural model which explains premenstrual coping in university students and to test the fitness with collected data. Methods: Participants were 206 unmarried women university students from 3 universities in A and B cities. Data were collected from March 29 until April 30, 2016 using self-report structured questionnaires and were analyzed using IBM SPSS 23.0 and AMOS 18.0. Results: Physiological factor was identified as a significant predictor of premenstrual syndrome (t=6.45, p<.001). This model explained 22.1% of the variance in premenstrual syndrome. Psychological factors (t=-2.49, p=.013) and premenstrual syndrome (t=8.17, p<.001) were identified as significant predictors of premenstrual coping. Also this model explained 30.9% of the variance in premenstrual coping in university students. A physiological factors directly influenced premenstrual syndrome (${\beta}=.41$, p=.012). Premenstrual syndrome (${\beta}=.55$, p=.005) and physiological factor (${\beta}=.23$, p=.015) had significant total effects on premenstrual coping. Physiological factor did not have a direct influence on premenstrual coping, but indirectly affected it (${\beta}=.22$, p=.007). Psychological factors did not have an indirect or total effect on premenstrual coping, but directly affected it (${\beta}=-.17$, p=.036). Conclusion: These findings suggest that strategies to control physiological factors such as menstrual pain should be helpful to improve premenstrual syndrome symptoms. When developing a program to improve premenstrual coping ability and quality of menstrual related health, it is important to consider psychological factors including perceived stress and menstrual attitude and premenstrual syndrome.

• Imaging Science in Dentistry
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• 제35권3호
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• pp.167-173
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• 2005

Purpose : To investigate the relationship between three-dimensional (3D) bone imaging parameters and trabecular strength in the mandible. Materials and Methods : Bone specimens were obtained from the mandibles of five male pigs weighing around 110 kg each. Of those, 43 samples were selected for 3D analysis and measured by micro-computed tomography. The five morphometric parameters were trabecular thickness (Tb.Th), bone specific surface (BS/BV), percent bone volume (BV/TV), structure model index (SMI) and degree of anisotropy (DA). Through destructive mechanical testing, strength parameters were obtained. Results : BV/TV, SMI, BS/BV, and Tb.Th showed significant correlations with strength parameters. DA did not show any correlation with the other parameters. In multiple linear regression analysis, BV/TV alone explained $43\%$ of the variance in Young's modulus. By stepwise inclusion of SMI, the variance in the Young's modulus was better explained up to $52\%$. Conclusions : Predicting trabecular strength in the mandible through architectural analysis would be possible. Further study is needed to establish the tendency and variety of trabecular architecture and strength according to the locations within the mandible.

• 한국조사연구학회지:조사연구
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• 제13권1호
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• pp.33-59
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• 2012

본 연구는 인구학적 변인으로 새로운 미디어 이용변인을 활용할 필요가 있는지를 살펴보기 위한 것이다. 이를 위해 대전 시민 500명을 대상으로 2011년 7월에 설문조사를 실시하고 그 결과를 분석했다. 분석결과를 요약하면 다음과 같다. 성, 연령, 소득 같은 기존의 인구학적 변인의 설명력이 여전히 유효한 것으로 나타났으나 종속변인에 대한 설명력은 크지 않았다. 기존 인구학적 변인에 새로운 미디어 이용변인(인터넷 이용빈도, SNS 이용빈도, 스마트폰 이용 여부)을 추가하여 회귀분석을 실시한 결과 온난화, 대중교통, 국정지지의 세가지 주제의 경우 설명력이 유의미한 증가를 하는 것으로 나타났다. 결과적으로 새로운 미디어 이용요인은 여러 이슈에 대해 안정적인 설명력을 갖지는 못했으나 시민의 국정지지 성향을 이해하거나 지구온난화 같은 새로운 의제에 대한 태도를 이해하는 과정에서는 활용할 가치가 있다고 할 수 있다.