• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.350-356
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• 2020

Purpose: This study is a non-equilibrium control-like experimental study that attempts to develop a nursing intervention plan and to present basic data by grasping the effect of the heating therapy nursing intervention program on patients entering the recovery room after surgery. Method: The subjects of the study were 31 in an experimental group and 31 in a control group who applied one heating therapy program located in D city. The warming therapy was conducted in a recovery room in the range of 38 to 43℃ through a heater. The general characteristics of the subjects were determined by real number and percentage, and a homogeneity test between the experimental group and the control group was determined by 𝑥²-test and independent t-test. The difference in body temperature, pain, and tremor over time between the two groups was determined by repeated measure ANOVA. Results: First, the results of repeated measurements immediately after surgery showed significant differences in body temperature, pain, and tremor between the two groups. Second, temperature comfort showed a significant difference. Conclusion: The results confirmed that there was a positive effect on the patient in the intervention of warming therapy after surgery.

• Journal of Labour Economics
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• v.28 no.3
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• pp.77-109
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• 2005

On the basis of the Korea Labor and Income Panel Survey for the 1997 through 2003 period, this paper investigates if the income distribution has become more bi-polarized since the recent financial crisis. The polarization measure developed by Esteban and Ray(l994) and Duclos, Esteban, and Ray(2004) indicates that the distribution of total income has become much more bi-polarized than unequalized for the entire sample period. Second, the rapid increase in the bi-polarization measure is attributed to the enhanced within-group homogeneity among the lower-income group as well as the widening gap between the two groups in the mean income level. Third, no such pattern exists in the distribution of labor income. Overall, the findings in the current study would support the hypothesis of a centrifuging society which is characterized by the slow disappearance of the middle class and the formation of two poles and which is observed in the United States and the United Kingdom among others.

• Journal of Korean Academy of Nursing
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• v.19 no.3
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• pp.273-284
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• 1989

The aim of this investigation was to delineate concepts contributing to the Exercise of Self-Care Agency (E.S.C.A.) Scale developed by Kearney & Fleischer (1979) and to test its construct validity and its predictors. The results are summarized as follows ; 1. By means of principal factor analysis and maximal likelihood factor analysis upon data generated from 280 undergraduate students, the factors of Concern about Health Knowledge, self-Concept, Information - Seeking Behavior, Decision -making and Responsibility, Self-esteem, and Passivity emerged. The total percent of variance explained by the 6 factors was 75.1% 2. To assess factor independence and instrument homogeneity, correlations among the 6 factors were computed. The correlations ranged from .24 to .46 indicating that the factors and the items were not too similar or redundant. 3. Test-retest reliability of the total scale is r＝.70. Cronbach's $\alpha$ coefficient for internal consistency of the total scale is .86 and that of the factors ranged from .750 to .661 (only factor 6 .497). 4. In additional analysis of the Exercise of Self-Care Agency Scale in relationship to Multiple Health Locus of Control, Family Environmental Scale, and Cornell Medical Index using stepwise multiple regression, the Internal Health Locus of Control Score predicted 21.8%(F＝53.34, p＝.0001), Family Environmental Score 8.3%(F＝22.59, P＝.0001), Modified Cornell Medical Index Score 5.4%(F＝15.74, P＝.0001) of the score of the E.S.C.A.

• Korean Journal of Agricultural Science
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• v.26 no.1
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• pp.84-99
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• 1999

In China, primary purpose of policy concerning land tenure system was to maintain social homogeneity among people and growth of productivity. Even before reformed by Deng Shao Ping's government, left wing who had placed more importance on the social unity. When they gained political power, pressing against market oriented agricultural policy for the collective farming system. However right wing prefered to adopt the productivity oriented policy, which might lead to individualized farming system at the cost of social unity. Since Chinese government following principles of social economy put more weight on social unities rather than productivity growth, farming system and rural community became developed into homogeneous structure across the nation before Deng Shao Ping's reform. Process for People's Commune, followed by first and then second level coperations starting from group farming so called Hozozo, was historical reflection of developing such land tenure system. However, even under People's Commune, farmers' efforts could be found to increase their own productivity along with emerged private farming, in which Posandoho with week private farming system was gradually developed into Pogandoho. As Deng's government encouraged farmers to increase productivity through the market oriented measure, there had been wide spread of Pogandoho among the farmers even before legal desolution of Peoples' Commune was realized.

• Journal of Environmental Science International
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• v.12 no.7
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• pp.763-774
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• 2003

This study was conducted to design long and short forms of reliable and valid Likert-type scales to measure environmental attitudes of Korean junior high school students. 8 tests were applied to the construction of a 32-item long form and 8-item short form of the scale. Two scales were field tested on 469 respondents consisting of male and female students in urban and rural areas and students participating in environmental programs. The 32-item scale was revealed to be highly reliable, content and construct valid. Reliability and homogeneity of this scale were evidenced by 0.92 coefficient alpha and positive interitem correlation values ranging from 0.10 to 0.52. Factor analysis and known-group comparison showed the sufficient validity of long form scale. Reliability and validity of short form scale were also evidenced by good results of 8 test analyses. The long and short forms were strongly correlated, ${\gamma}$-value of 0.90. Consequently, both long form and short form scales were evidenced very reliable and valid in measuring environmental attitudes of junior high school students in Korea. They can be useful for a variety of survey conditions and constraints and testing environmental attitude.

• Journal of Environmental Science International
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• v.11 no.9
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• pp.829-842
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• 2002

The purpose of this study was to design a reliable and valid Likert-type scale to measure nuclear energy attitudes of various groups. 8 tests were applied to the construction of a 26-item long form, a 12-item middle form, and a 6-item short form of the scale. Three scales were field tested on 760 respondents representing a diverse range of subjects. The 26-item scale appeared to be reliable, content valid and construct valid. Scale reliability and homogeneity were evidenced by 0.95 coefficient alpha and positive interitem correlations ranging from 0.18 to 0.74. The results of factor analysis and known-groups comparison revealed that this scale had high validity. Reliability of the middle form and short form were evidenced by coefficient alpha of 0.92 and 0.90 respectively. The long and middle forms were strongly correlated, r-value of 0.98 and the long and short forms were also highly correlated, r-value of 0.93. Consequently, long form, middle form and short form scales were evidenced very reliable and valid in measuring nuclear energy attitudes of various groups in general. They can be used for a variety of purpose of measuring and testing nuclear energy attitude.

• Women's Health Nursing
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• v.16 no.1
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• pp.87-94
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• 2010

Purpose: The purpose of this study was to examine the effects of a 16-week Self-help Tai Chi for Arthritis (SHTC) combined with health education for Korean American older women. Methods: This research was a designed quasiexperimental pre-posttest. Forty one women aged 55~79 were recruited 20 in SHTC group 21 in control group and, but twelve in SHTC group and thirteen in control group were left after 16 weeks. SHTC group was educated for 1 hour health education and 1hour TCA, once a week during 16 wks. Measurements for comparison were taken three times, at baseline, 8 wks and 16wks. The effect were evaluated with self-efficacy, shoulder flexibility, back flexibility, both hand grip strength and standing balance with closed eyes. Results: All variables except for left hand grip strength at baseline had significant homogeneity between both groups. After 16 weeks intervention, there was a significant interaction effect of time and group on right hand grip strength by repeated measure of ANOVA (F=3.398, p=.044). No significant interaction effects were found on self-efficacy, shoulder and back flexibility, left hand grip strength and standing balance with closed eyes. Conclusion: I can suggest this self-help Tai Chi program may be effective partially, but further research is needed to establish the best times and periods to intervene for a better effect.

• Journal of the Korean Society of Visualization
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• v.16 no.1
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• pp.21-29
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• 2018

Homogeneous and isotropic turbulence (HIT) with no mean flow is a very useful type of flow for basic turbulence research. However, it is difficult to generate HIT in the lab. In this study, we implemented HIT in a confined box through synthetic jet actuators using sub-woofer speakers. Characteristics of HIT are varied depending on the strength of the jets. We used 2D PIV to measure the velocity field. Turbulence statistics such as homogeneity, isotropy ratio, turbulence kinetic energy, dissipation rate, Taylor microscale, Kolmogorov scale, and velocity correlation coefficient were calculated. Most of the turbulence statistics increased exponentially according to the strength of the jets, and the Taylor Reynolds number reached up to 185.

• Asian Oncology Nursing
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• v.10 no.2
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• pp.171-179
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• 2010

Purpose: The purpose of this study was to evaluate the effects of progressive muscle relaxation on nausea, vomiting, fatigue, anxiety, and depression in cancer patients undergoing chemotherapy. Methods: This study was a quasi-experimental research using non-equivalent control group pretest-posttest design. Data were collected from outpatients in a university hospital from April to August, 2009. There were 74 participants, 39 in the experimental group and 35 in the control group. The experimental group was given daily the progressive muscle relaxation for 20 min during three weeks. The structured questionnaire was used to measure nausea, vomiting, fatigue, anxiety, and depression. Data were analyzed using the SPSS/WIN 12.0 program, $x^2$-test, Fisher's exact test, t-test and ANCOVA were conducted to examine the homogeneity and the research hypotheses. Results: There were statistically significant decreases in anxiety and depression in the experimental group compared to the control group. However, there were no significant differences in nausea, vomiting, and fatigue between the groups. Conclusion: In this study, progressive muscle relaxation was effective in alleviating anxiety and depression of cancer patients undergoing chemotherapy. Therefore, progressive muscle relaxation can be usefully utilized as a nursing intervention that enhances psychological function of cancer patients.

• IE interfaces
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• v.22 no.4
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• pp.336-346
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• 2009

One of primary assumptions on DEA is that all DMUs for evaluation should be homogeneous. In comparative analysis among DMUs with relative efficiency measurement, it should be evaluated under identical conditions by ruling out external environmental influences. In this study, a measurement of innovation efficiency using the three-stage approach is performed. The approach employs DEA to measure relative efficiency and Tobit regressions to control external variables affecting innovation activity. The approach applied to firms in Korean Innovation Survey: Service Sector 2003 and 2006. Final efficiency scores of the approach represent net efficiency of the innovation. This study found that there is a increasing on technical efficiency of third stage, and it has difference with first stage significantly. Besides, a decrease on standard deviation of third stage is found. It means DMUs biased lower due to unfavorable condition and ones biased higher due to favorable condition are fallen into an identical operating environment through the approach. A measurement of net efficiency, excluding external effects, ensures the homogeneity of DMUs so that improves the reliability in terms of its analysis results. This study is expected to provide a direction and to be a valuable reference to further evaluation of innovation performance in Korean service sector.