• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.9
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• pp.1770-1776
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• 2011

In this study, a new method that can estimate ICG data from a subject's both hands to measure Cardiac Output under convenient sensor environment. With this aim, a grip-type electrode was implemented to measure ICG. To improve the accuracy of measurement, the regression equation was extracted using multiple bio-parameters and our result was compared with the thoracic ICG equipment(Physio Flow$^{(R)}$, PF104D, Manatec Biomedical, France), which is being used in clinics. The subjects consist of 26 men and 4 women(age in $22.0{\pm}3.32$). They are no cardiac disease. Parameters available for regression model were used gender, BMI, MBP, LVET, dZ/dt(max), distance between the measured electrodes, body impedance, and PTT. As a result of analyzing the ICG measurement value on thorax and both hands, the correlation with stroke volume, heart rate, and cardiac output was $R^2$=0.853, $R^2$=0.958 and $R^2$=0.899, respectively.

• Journal of Nutrition and Health
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• v.27 no.10
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• pp.1070-1077
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• 1994

The purpose of this study was to measure the counseling effects for diabetes mellitus patients. To measure the effects of the nutrition counseling, 40(13 men and 27 women) outpatients with diabetes mellitus were selected and they were randomly assigned to either the counseling group or non counseling group. Twenty-one counseling group patients received nutrition counseling weekly for 6 weeks and 19 patients served as non counseling group(control group) did not received counseling over same study period. The results of this study can be summerized as follows : 1) The food attitude score of the counseling group significantly increased from 61.9$\pm$15.9 prior to counseling to 87.0$\pm$7.8 after counseling (p<0.001). 2) Fasting blood glucose level and postgrandial blood glucose level also showed significant difference between two groups(p<0.01). In the counseling group, the fasting blood glucose level significantly decreased from 163.5$\pm$48.6mg/dl to 142.3$\pm$40.6mg/dl(p<0.01), and the postgrandial blood glucose level significantly decreased from 281.3$\pm$105.1mg/dl(p<0.001). 3) There was a significant difference of glycosylated hemoglobin between the two groups(p<0.005), and the glycosylated hemoglobin level of counseling group significantly decreased from 11.2$\pm$2.9% to 9.7$\pm$3.6%(p<0.005). 4) There was a significant correlation between the food attitude score difference and the glycosylated hemoglobin level difference in counseling group(p<0.05).

• Women's Health Nursing
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• v.22 no.4
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• pp.264-274
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• 2016

Purpose: The purpose of this study was to develop and evaluate breastfeeding effectiveness scale to measure effectiveness of breastfeeding for mothers in the early postpartum period. Methods: A conceptual framework was constructed from properties of effective breastfeeding (Yang and Seo, 2011), and item construction was derived from literature review and analysis of the data along with interviews with breastfeeding mothers. Content validity was tested by experts. Each item was scored on a five-point Likert scale. The preliminary questionnaire was administered to 248 breastfeeding mothers. Data were analyzed using item analysis, factor analysis, Pearson correlation coefficients, and Cronbach's ${\alpha}$. Results: From the factor analysis, 20 items in seven factors were derived. The factors were identified as mother's satisfaction, suckling, assurance of milk quantity, infant's satisfaction, latching on, infant's feeding desire, and breastfeeding positioning. The seven factors explained 65.1% of total variance, Cronbach's ${\alpha}$ of the total items was .83 and the factors ranged from .44 to .75. Conclusion: Results of this study suggest that breastfeeding effectiveness scale is a reliable and valid instrument to measure breastfeeding effectiveness of mothers in the early postpartum period.

• Journal of Distribution Science
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• v.15 no.5
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• pp.29-38
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• 2017

Purpose - Prior theories predict a negative correlation between stock liquidity and dividend payout propensity. We test this hypothesis by examining the sample Korean retail firms. Research design, data, and methodology - We construct four different types of stock liquidity measures and investigate how these stock liquidity variables affect dividend payout propensity by employing the logit regression model. The retail firms listed in the KOSPI and KOSDAQ markets are analyzed from 1990 to 2015. Results - Our estimation results support the liquidity hypothesis if we adopt the stock turnover rate as the stock liquidity measure, particularly for the retail firms listed in the KOSPI markets and for non-conglomerate firms. Yet, our estimation results adopting the illiquidity measure of Amihud (2002), the proportion of non-trading day, and the volume of trading do not support the liquidity hypothesis. Conclusions - Our findings provide mixed results for the validity of stock liquidity hypothesis, which enriches the existing literature. In terms of turnover rate, the stock liquidity hypothesis holds robustly. Yet, we are not able to find any empirical evidence supporting the hypothesis if we use the other three measures of stock liquidity.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.3
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• pp.605-611
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• 2001

In order to offer the service information of high-quality, we should develop the software of high-Quality. We need the united estimate method, because existing developed quality measurements individually measure attributes using the different viewpoint. Therefor, this paper propose the model that able to include many method of measurements. Our model selects the ratio scales and calculates the relative significance of them by using rough logic. Then, in order to measure the quality of module, it integrates the significance of scales and the measured value of them by using fuzzy integral. Finally, we analyze the correlation between the existing scales with our measurement and validate our model through statistical technique.

• Journal of Korean Academy of Nursing
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• v.42 no.5
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• pp.749-758
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• 2012

Purpose: The purpose of this study was to develop a tool for measuring the intra-operative caring as perceived by regional anesthesia patients. Methods: A preliminary instrument with 54 questions, based on a literature review and semi-structured interviews with 11 regional anesthesia patients, was developed. A group of experts revised individual questions, and 34 questions were finally selected. This tool was tested with 137 regional anesthesia patients admitted to D university hospital in B city from August to October 2008. Results: The validity and reliability of the tool were tested using factor analysis. After item analysis, one question with a correlation coefficient under .30 was discarded After performing factor analysis on the final 33 questions, 7 factors were identified; holistic needs fulfillment, consideration, protective environment, cautiousness, concern, information, physical comfort. The total variance shown in the test was 73.5%. A Cronbach alpha of 0.96 showed the reliability of the instrument. Conclusion: Results of this study indicate that the tool is statistically reliable and valid to measure the intra-operative caring perceived by regional anesthesia patients. This tool can be utilized usefully in assessing the effects of nursing interventions for regional anesthesia patients.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.17 no.1
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• pp.109-118
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• 2010

Purpose: This study was designed to examine the relationship between nurses' characteristics and perception of seriousness of elder abuse. Method: A cross-sectional survey design was used to describe the perception of elder abuse by 301 nurses. Data were collected by convenience sampling. The research instruments utilized in this study were 12 scenarios adapted by Yoo & Kim from the 13 senarios to measure the perception of elder abuse developed by Moon and Williams (1993), a seven item questionnaires related to elder abuse law, and a Semantic Differential Scaling to measure attitudes toward elderly people. Data were analyzed with descriptive statistics, t-test, ANOVA and Pearson's correlation. Results: The mean score for perceptions of elder abuse was 3.07. Among the types of abuse, sexual abuse was perceived as the most severe type of abuse followed by physical abuse, neglect, financial abuse, and emotional abuse in that order. Education, job position, experience of gerontological nursing course, and education on elder abuse, exposure to elder abuse information, and attitudes toward elders were significantly related to the perception of seriousness on elder abuse. Conclusions: The results of this study suggest that provision of elder abuse education is needed for nurses, to enable them to identify elder abuse and address their legal and professional responsibilities.

• Journal of Korean Academy of Nursing
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• v.38 no.4
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• pp.629-638
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• 2008

Purpose: This was a methodological research to develop an instrument to assess the emotional response of family members of physically restrained patients. Methods: A primary instrument with 68 questions was developed based on literature review and semi-structured interviews with family members. A group of experts revised individual questions and removed 4 irrelevant questions. This secondary instrument, then, was tested with 199 family members of physically restrained patients in intensive care units of a university hospital. The validity and reliability of the instrument were tested by factor analysis. Results: After item analysis, 3 questions with a correlation coefficient under .30 were discarded and the questions with a factor loading under .45 on Varimax Rotation were also removed. After factor analysis on the final 37 questions, 7 factors were identified; avoidance, shock, helplessness, grudge, depression, anxiousness, and acceptance. The total variance explained was 55.63%. The reliability of this instrument was 0.93 of Cronbach's alpha. Conclusion: This instrument was statistically reliable and valid to measure family's emotional response to physical restraints of the patients. This instrument can be useful in assessing the effects of nursing interventions for family members of restrained patients.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.438-444
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• 2003

A new method to measure residual stress in micron and nano scale films is described. In the theory it is based on Linear Elastic Fracture Mechanics. And in the techniques it depends on the combined capability of the focused ion beam (FIB) imaging system and of high-resolution digital image correlation (DIC) software. The method can be used for any film material (whether amorphous or crystalline) without thinning the substrate. In the method, a region of the film surface is highlighted and scanning electron images of that region taken before and after a long slot, depth a, is introduced using the FIB. The DIC software evaluates the displacement of the surface normal to the slot due to the stress relaxation by using features on the film surface. To minimize the influence of signal noise and rigid body movement, not a few, but all of the measure displacements are used for determining the real residual stress. The accuracy of the method has been assessed by performing measurements on a nano film of diamond like carbon (DLC) on glass substrate and on micro film of aluminum oxide thermally grown on Fecrally substrate. It is shown that the new method determines the residual stress ${\sigma}_R=-1.73$ GPa for DLC and ${\sigma}_R=-5.45$ GPa for the aluminum oxide, which agree quite well with ones measured independently.

• Journal of Fisheries and Marine Sciences Education
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• v.24 no.5
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• pp.627-642
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• 2012

The purpose of this study was to develop and validate a teacher's praise dispositions scale(TPDS). On the basis of a literature review of praise, we developed 19 Likert-type items to measure praise dispositions of elementary and secondary school teachers. The developed scale was examined with 342 teachers. With an exploratory factor analysis we extracted 3 sub-factors of the scale consisted of 16 items; frequency, intention, and standard of praise. Cronbach's ${\alpha}$ coefficients of sub-scales were from .60 to .85 and split-half reliabilities were from .60 to .84. A confirmatory factor analysis was conducted to assess the suitability of three components model. It was found that some correlation coefficients, not all of them, between gratitude disposition and praise disposition were statistically significant. It suggested that teachers'praise disposition scale is related to gratitude disposition but is not the same scale. In conclusion, TPDS could be used to measure praise dispositions of teachers. However, for further validity and reliability, repeated research is necessary.