• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.8
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• pp.913-923
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• 2003

This study divides consumers into groups according to the TRI(technology readiness index) in order to (md out the characteristics of each consumer group, and attempts to examine how the frequency of shopping and the TRI affect service quality of and satisfaction at the internet apparel shopping sites. An on-line survey was made to collect data, and the replies from 785 people, who had an experience of apparel shopping apparel on line, were used in the analysis. The research results are as follows: 1. The four factors of optimism, innovativeness, discomfort, and insecurity were identified from the TRI factor analysis, and the total variance was 58.88%. 2. The male group showed the higher TRI than the female group. Especially the factor of innovativeness was higher in the male group, indicating the male group's activeness in the use of technology. 3. Consumers were classified into five types in terms of the TRI: explorers, pioneers, skeptics, paranoids, and laggards. 4. Service quality had the greatest influence on consumers’satisfaction with the apparel shopping sites, and the frequency of purchase, optimism, and discomfort ranked next to service quality.

• Korean Journal of Human Ecology
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• v.23 no.6
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• pp.1013-1033
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• 2014

This study attempted to develop a valid and reliable instrument capable of measuring Korea midlife family resilience (The Korea Midlife Family Resilience Scale: KMFRS). An exploratory, non-experimental, cross-sectional, and quantitative design was used to develop and validate the KMFRS. A tentative factor structure of family resilience and an item pool of the scale were constructed through a comprehensive literature review and personal interview. The pilot study was conducted with 424 middle aged adults(40~59) to select items for a scale, resulting in a preliminary scale composed of 70 items. In the main study, the preliminary scale was administered to a national representative sample of 562 middle-aged Korean adults. The scale was filtered into 40 items by the item analysis and an exploratory factor analysis, resulting in 6 factors: Family Connectedness & Problem Solving, Family's Positive Perception of Adversity, Family's Economic Stability, Family Religion & Spirituality, Support of Extended Family, and Support of Friends & Neighbors. These 6 factors explained 61.82% of total variance. The findings of the current study indicate substantial support for the reliability and the validity of the KMFRS. Other challenges and suggestions for future research on family resilience scale are discussed.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.3
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• pp.1163-1169
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• 2014

Astragalus, a commonly used traditional Chinese medicine, has exhibited antitumor actions in patients. In this study, in vitro and in vivo antitumor effects of astragalus and synergistic antitumor efficacy in combination with pterostilbene were investigated. Melanoma cells were treated with pterostilbene (Pt), graduated doses of astragalus injection (AI), or these in combination. Cell viability was measured using a MTT assay. Released nucleosomes and caspase activity were measured using enzyme-linked immunosorbent assay. Growth inhibition in vitro and in vivo was also assessed. Analysis of variance and t tests were used for statistical analysis. Significant reduction (p<0.05) in cellular proliferation were observed with AI and AI-Pt in a time- and concentration-dependent manner. Apoptosis and caspase-3/7 activity were significantly increased by AI and AI-Pt treatment (p<0.05). In vivo, AI inhibited melanoma tumor growth, with inhibition rates ranging from 36.5 to 62.3%, by inducing apoptosis via up-regulation Bax expression and the Bax/Bcl-2 ratio and down-regulating Bcl-2 expression. AI significantly inhibits the growth of melanoma in vitro and in vivo by inducing apoptosis. These data suggest that combined treatment of astragalus with pterostilbene enhances antitumor efficacy.

• Journal of Korean Academy of Nursing
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• v.47 no.1
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• pp.86-97
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• 2017

Purpose: The purpose of this study was to develop and test the psychometric properties of the newly developed instrument, Meaning in Life, for elderly Korean people. Methods: Ten older adults participated in the qualitative research used to develop the initial items. Participants for the psychometric testing were 371 community-dwelling older adults. Validity and reliability analyses included content, construct, and criterion-related validities, internal consistency, and test-retest reliability. Results: The Meaning in Life Scale consisted of 12 items with three distinct factors; value of life, source of life, and will to live, which explained 86.7% of the total variance. A three-factor structure was validated by confirmatory factor analysis. Criterion-related validity was supported by comparison with the Purpose in Life Test (r=.74). Reliabilities were secured with test-retest reliability of Intra-class Correlation Coefficient (ICC) .85 and the Cronbach's alpha coefficient .90. Conclusion: The results of this study indicate that this instrument is useful to measure meaning in life in Korean elders.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.39 no.4
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• pp.470-476
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• 2002

This paper presents an analysis of the performance degradation of coefficient approximation and frequency deviation in phase measurement algorithm based on Sliding-DFT. The analytic derivation is based on the statistics of the error dynamic equation that describes the error propagation of the recursion. The analysis result is intended to obtain a closed-form equation of error variance in terms of the number of bits used in coefficient approximation, the length of the DFT data block, and noise. It is verified with data obtained from the computer simulations.

• Journal of Korean Public Health Nursing
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• v.27 no.1
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• pp.153-165
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• 2013

Purpose: The purpose of this study was to identify the relationships between physical activity, health status, and quality of life (QOL) of University students. Methods: The research design was based on a descriptive research design model. This study sample consisted of 183 K University students in D city. Data was collected from December 2012 to January 2013 and analyzed with descriptive statistics (frequency, percentage, analysis of variance (ANOVA), t-test, and Pearson's correlation analysis) using SPSS 19.0. Subjects completed questionnaires on their demographics, physical activity, health status, and QOL. Results: The overall physical activity of participants was $2529.40{\pm}5057.896$ min/week on average. The average health status was $28.66{\pm}6.3$ and the average physical health and mental health were $16.45{\pm}3.955$ and $12.31{\pm}3.446$, respectively. The overall degree of QOL was $3.429{\pm}0.379$. A positive relationship existed between moderate and vigorous activity and health status. In addition, QOL positively correlated with physical health (under health status). However, physical activity was not related with both mental health (under health status) and QOL. Conclusion: Based on the results of this study, health educational programs are needed to promote sufficient physical activity in university students.

• International Journal of Concrete Structures and Materials
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• v.9 no.3
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• pp.323-335
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• 2015

This paper examines some properties of concrete, such as strength, oxygen permeability and sorptivity using starch [cassava (CA) and maize (MS)] as admixtures. Concrete cubes containing different percentages of the CA and MS by weight of cement (0, 0.5, 1.0, 1.5 and 2.0 %) were cast. Compressive strength tests were carried out after 3, 7, 14, 21, 28, 56, 90, 180, 270 and 365 days of curing. Oxygen permeability and sorptivity tests were carried out on another set of concrete specimens with the same percentages of starch at 7, 28, 90, 180, 270 and 365 days. Oxygen permeability and sorptivity tests data obtained were subjected to Kruskal-Wallis one-way analysis of variance by ranks. The strength increase after 1 year over the control for CA 0.5 and CA 1.0 are 2.7 and 3.8 % respectively, while MS 0.5 and MS 1.0 gave 1.5 % increase over control. These results showed a decrease in oxygen permeability and rates of sorptivity, with concretes containing starch as admixtures giving better performance than the control concretes.

• Child Health Nursing Research
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• v.10 no.2
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• pp.196-204
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• 2004

Purpose: This research was to determine the characteristics of dysmenorrhea among girls, identify the factors affecting dysmenorrhea. Method: The study subjects were 1653 high school student in Busan Metropolitan city. The data were collected by a self-administered questionnaire between November 1 and November 30, 2002. Descriptive statistics, t-test, one-way ANOVA with Scheffe' test, and stepwise multiple regression analysis in SPSS program were used for data analysis. Result: Students suffering from slight dysmenorrhea made up the majority 52.9％, whereas those with serious cases represented 29.8％. Regarding the measures taken to cope with dysmenorrhea, most of the respondents took analgesics 52.8％. A high points of dysmenorrhea was associated with irregular meal habits(p<0.01), unbalanced diet(p<0.05), stress(p<0.01), and health awareness(p<0.01), first menstruation before they reached 13 (p<0.01), heavy bleeding(p<0.01), family history(p<0.01). Factors affecting the dysmennorrhea of the respondents included the extent of bleeding, family history, health awareness, age during the first menstruation, and degree of stress, accounting for 13.1％ of the total variance. Conclusion: To manage dysmenorrhea among girls, the results of the research indicate that students need to have proper awareness of health and manage stress through health education. Likewise, they need to be given positive follow-up management through a holistic nursing approach.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.17
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• pp.7153-7158
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• 2014

Background: Non-Hodgkin's lymphoma (NHL) patients demonstrate multiple symptoms in diagnosis and treatment processes. This cross-sectional descriptive study aimed to determine the symptoms and symptom clusters in such patients receiving chemotherapy. Materials and Methods: The study was carried out on a total of 110 inpatients and outpatients receiving treatment in 7 hospitals in Ankara, Turkey. A questionnaire form and the Memorial Symptom Assessment Scale (MSAS) were applied. Percentages, means, t test, one way analysis of variance (ANOVA) and cluster analysis were used for statistical analyses. Results: The most prevalent symptoms in this study were lack of energy, hair loss and change in the way food tastes. The most severe symptoms were hair loss, change in the way food tastes and constipation. The top three most distressing symptoms were taste change, constipation and mouth sores. Seven symptom clusters were determined in this study. Conclusions: Findings of the study will provide an understanding of symptom experiences of Non-Hodgkin's lymphoma patients receiving chemotherapy and will guide determining appropriate nursing interventions. Receiving care of desired quality will contribute to increasing quality of life of affected individuals.

• Journal of Technologic Dentistry
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• v.33 no.4
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• pp.529-538
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• 2011

Purpose: The purpose of this study was to investigate the factors affecting turnover and job satisfaction, to reduce turnover rate of dental technician. Methods: Subjects included dental technicians in the metropolitan areas of the cities of Daegu and Gyeong-buk. Surveys were filled out by consenting dental technicians. Statistical analysis was done using the Statistical Package for Social Sciences version 18.0 for Windows. We determined frequencies and percentage, calculating means, and standard deviations, and determining statistical significance using t-tests, analysis of variance. Results: Job satisfaction showed differences in General characteristics associated with gender, age, monthly salaray, education. Turnover intention showed differences in General characteristics associated with age, monthly salaray. Job satisfaction showed differences in dental laboratory characteristics associated with Career, Working time. Turnover intention showed differences in dental laboratory characteristics associated with working time. Conclusion: In order to reduce turnover rate of dental technician, Job satisfaction of dental technicians have to find ways to improve. The comprehensive and reliable research which measures job satisfaction of dental technician is necessary.