• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.322-331
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• 2019

This study was conducted to examine the correlations between knowledge and compliance of cough etiquette, and to identify the influencing factors on compliance of cough etiquette in nursing students. This was a descriptive study. Data were collected from september 3 to 14, 2018 in 173 nursing students. Data were collected through personal interviews using a questionnaire. Data were analyzed using t-test, one-way ANOVA, Kruskal-wallis test, Pearson's correlation coefficients, and stepwise multiple regression. Knowledge of cough etiquette according to the droplet infection related characteristics showed significant differences in hand washing. Compliance of cough etiquette according to the droplet infection related characteristics showed significant differences in carrying a tissue, carrying a handkerchief, hand washing, need education for cough etiquette. Knowledge of cough etiquette showed significant positive correlations with compliance of cough etiquette. Knowledge of cough etiquette, carrying a handkerchief, need education for cough etiquette, which accounted for 22% of the variance, were significant predictors influencing compliance of cough etiquette in nursing students. To improve compliance of cough etiquette in nursing students, it is necessary to carry handkerchief and to develop a education program that can raise knowledge with cough etiquette.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.171-187
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• 2018

The purpose of this study is to investigate the lifestyle factors influencing behavioral problems such as Inattention, hyperactivity/impulsivity, and internet overuse in elementary and middle school students. Data from 889 elementary school students and 676 middle school students were used and teacher reporting on students' attention deficit and hyperactivity and impulsivity symptoms was also included in the analysis. Lifestyle included opportunities for family interaction, sleep, watching TV, playing Video games, eating breakfast, eating junk food, and private education. As a result of stepwise regression analysis, Video games, junk foods, and family interactions significantly predicted the inattention of elementary and middle school students. Video games, TV, junk foods, and family interactions significantly predicted elementary school students' hyperactivity and impulsivity, but the lifestyle variables hardly accounted for the hyperactivity/impulsivity of middle school students. Video game, and family interactions significantly predicted Internet overuse for both elementary and middle school students. Current study suggest that family interaction opportunities and the use of video games, TV and junk food should be considered to intervene in behavior problems.

• Korean Journal of Child Education & Care
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• v.18 no.4
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• pp.199-211
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• 2018

Objective: The purpose of this study is to examine the relative effects of young children's mathematical abilities and scientific abilities on intelligence. Methods: The object of this study is 100 five or six-years-old children in a kindergarten of S district in S city. I conducted analysis of partial correlation after controlled young children's age and sex to examine correlation between young children's mathematical abilities, scientific abilities and intelligence, also I used stepwise multiple regression analysis for inspecting the relative effects of young children's mathematical abilities and scientific abilities on intelligence. Results: Young children's intelligence is relative with mathematical abilities and scientific abilities, this relation is higher in 'measurement' and 'algebra' factors of mathematical abilities and 'predicting' factor of scientific abilities. Mathematical abilities bigger impact to the relative effects on young children's intelligence. Conclusion/Implications: On this, it is necessary that evenly providing the math and science activities in early childhood education field and home, and we have to consider the integrations of the process when provide the math and science integrated activities. This study has the significance to use basic line data when people plan the integrated math-science activities and develop program associated those by finding the relationship between mathematical abilities, scientific abilities and intelligence and evaluating the relative effects on intelligence.

• Korean Journal of Child Education & Care
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• v.18 no.4
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• pp.145-158
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• 2018

Objective: The purpose of this study was to investigate the effects of distribution justice, procedural justice, and interactional justice which are the sub-factors of organizational justice on organizational commitment and turnover intention, so as to enhance the quality of childcare and identify the importance of organizational justice. Methods: For the study, the data were collected by measuring the organizational justice, organizational commitment, and turnover intention of 251 teachers working in home day care centers in Busan, Ulsan, and Gyeongnam, and then Pearson's product moment correlation coefficient and regression analysis (stepwise) were conducted. Results: The results are as follows. First, organizational commitment was significantly different in the age in terms of the general background of daily care teachers, as well as the period of service of their current organization, and the turnover intention showed a significant correlation with their salary. Second, the sub-factors of organizational justice and organizational commitment were positively correlated, but turnover intention was negatively correlated. Among them, in terms of organizational commitment, procedural justice and turnover intention were highly correlated with distribution justice. Third, the relative impact of the sub-factors of organizational justice on organizational commitment was high in procedural justice and distribution justice. The relative influence on turnover intention was high in distribution justice and interactional justice. Conclusion/Implications: Therefore, the results of this study indicate that organizational justice is a influential variable on organizational commitment and turnover intention, and suggest that it needs to make efforts to strengthen organizational justice for the operation of home daycare centers.

• Korean Journal of Clinical Laboratory Science
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• v.51 no.1
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• pp.86-92
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• 2019

Di-ethylhexyl phthalate (DEHP) is an environmental contaminant that is used as a plasticizer. Endometriosis is a complex disease with an unknown etiology that is believed to be associated with exposure to DEHP. The present study examined the potential toxicity of DEHP by exposing endometrial adenocarcinoma cells (Ishikawa cells) to DEHP. In the experiments, the cells were treated with stepwise DEHP concentrations (0, 0.01, 0.1, 1, and $5{\mu}M$) for different exposure times (24, 48, and 72 h). When the relationship between the resulting survival rate of the cells and initial inflammation was examined, the cell viability, expression of $TNF-{\alpha}$, an inflammatory mediator, and the expression of MMP-9, an ECM degradation protein, were increased remarkably when the cells were exposed to $5{\mu}M$ DEHP for 48 and 72 hours. These results suggest that the exposure of Ishikawa cells to certain concentrations of DEHP, estrogen mimics, may cause time-dependent toxicity that affects the cell viability and inflammation, implying a potential role in the etiology of endometriosis. Further research on the effects of endocrine disruptors on the pathogenesis of endometriosis may reveal strategies to prevent this disease.

• Journal of Music and Human Behavior
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• v.15 no.2
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• pp.69-92
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• 2018

The purpose of this study was to investigate whether a songwriting intervention would improve self-expression of adolescents with cochlear implants (CI). In this study, the songwriting intervention was designed to incorporate previous research findings on music perception of individuals with CIs and to provide musical experiences in which adolescents with CIs could be successful in using music resources for their self-expression. Accordingly, stepwise songwriting procedures were constructed and music technology (i.e., GarageBand as an iPad application) was used. Two adolescents with CIs participated in the intervention once a week for 8 weeks. Changes in level of participation in songwriting tasks, verbal expression, self-reports about the songwriting process were examined. The results demonstrated that the participants showed increased attempts to express themselves via music making. It was also shown that their negative perception of their ability to verbally express themselves decreased. They were observed as becoming more competent in creating music by deciding how various musical elements should be played and making rhythm or melodic patterns by themselves. These results indicate that the songwriting intervention can facilitate self-expression of adolescents with CIs. Further implications in terms of the psychosocial needs of individuals with CIs are presented.

• Korean Journal of Child Education & Care
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• v.19 no.2
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• pp.117-128
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• 2019

Objective: The purpose of this study is to investigate the effect of mother's acceptance parenting attitude and optimism on children's self-regulation including cognitive, emotional, and behavioral regulation. Methods: The subjects were 361 3, 4, 5 - year - old children and their mothers who attended to the early childhood education institutions. One-way ANOVA was conducted to find out age differences in self-regulation. The regression analysis were conducted to find out whether the mother's optimism could predict their children's self-regulation. The stepwise regression analysis were conducted to find out whether the mother's acceptance parenting attitude could predict their children's self-regulation. Results: As for the self-regulation, there were significant age differences in the cognitve regulation and the behavioral regulation, but not in the emotional regulation. It implies that the abilities of cognitive and behavioral regulation increase as the age level goes up. As for the relations between mother's optimism and their children's self-regulation, only the permanence factor of the mother's optimism predicted children's cognitive, emotional, and behavioral regulation. As for the relations between mother's acceptance parenting attitude and their children's self-regulation, two components of mother's acceptance parenting attitude (unconditionally love & right) could predict children's cognitive, emotional, and behavioral regulation. The component of unique could predict the cognitive and emotional regulation. Conclusion/Implications: These results suggest that mother's optimism and acceptance parenting attitude positively affect on the development of self-regulation ability in children.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.390-396
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• 2019

This study was undertaken to analyze factors influencing the emotional labor and emotional intelligence of a dental hygienist on organizational effectiveness. The study was conducted between September 4, 2018 to December 7, 2018, enrolling a total of 233 dental hygienists living in the Jeollabuk-do province. The data were analyzed by independent t-test, one-way ANOVA, $Scheff{\acute{e}}$ test, Pearson's correlation coefficient, and stepwise multiple regression, using SPSS 18.0. The regression model obtained was F=138.917, P<0.05, with an explanatory percentage of 58.2. Emotional labor (${\beta}=0.608$) was determined to be the most influential variable among independent variables, and other factors affecting the organizational effectiveness of a dental hygienist include the highest level of education, career, and emotional intelligence. We conclude that in order to improve organizational effectiveness among dental hygienists, it is necessary to establish an effective plan for reducing emotional labor and promote emotional intelligence.

• Korean Journal of Ecology and Environment
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• v.51 no.4
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• pp.322-330
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• 2018

Herbivory is a major functional component of forest ecosystems, and herbivorous insects comprise about 25% of all insect species. Increasing plant diversity is related to herbivore abundance and diversity, which affects the level of leaf damage caused by insects. This study was conducted to identify plant-related variables such as plant diversity and number of leaves and density-related variables, basal area, and diameter at breast height (DBH) in a temperate forest of southern South Korea. To assess the level of leaf damage caused by leaf chewing insects, we set up two 0.1 ha plots in a temperate deciduous forest on Mt. Jirisan National Park. Plant richness differed between two sites: 16 species in 14 families(site 1) and 19 species in 15 families (site 2). Fisher's alpha index based on plant species richness and abundance resulted in 4.41 (site 1) and 6.57 (site 2). However, the sum of basal area of each site was higher in site 1 ($6.6m^2$) than site 2 ($3.7m^2$). The total surveyed leaves at two sites were 3,832 and 4,691, respectively and the damage leaves were 1,544 and 2,136, respectively. The mean leaf damage level was 11.2% (${\pm}1.76%$) in two study sites: the leaf damage level of the site 1 (11.99%) was significantly higher than site 2 (10.59%). Stepwise regression analysis showed that species diversity and evenness were the significant variables for leaf damages by chewing herbivores. NMDS ordination also identified that high tree density and low species diversity were the significant variables. This suggested that the level of damage was significantly higher in plots with low plant diversity and high tree density. In the future, we will investigate other guilds of herbivores such as sap-suckers, miners and gallers in temperate deciduous forests.

• Journal of The Korean Society of Integrative Medicine
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• v.7 no.2
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• pp.111-119
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• 2019

Purpose : The aim of this study was to investigate patterns of medical use among juveniles and adolescents, including for chronic disease, in Korea. The study sought to do the following: (a) investigate the extent to which chronic diseases account for medical expenditures, (b) investigate and the socio-demographic characteristics associated with medical use, and (c) identify the differences in medical use between juveniles and adolescents. Methods : We used data from the 2015 Korean Health Panel and selected 12 variables. The socio-demographic characteristics investigated included, growth period (juvenile, adolescents), gender, family income, national basic livelihood act status, disability registration, and degree of disability. There were five medical factors that were considered: emergency room use, hospitalization use, hospital outpatient use, chronic disease, and medical expenditure. Data were analyzed using stepwise multiple and logistic regression. Results : The prevalence of chronic disability in juveniles and adolescents was 31.1 % and 1 %, respectively. The factors affecting medical expenditures included hospitalization use, hospital outpatient use, family income, disability, gender, chronic disease, and emergency room use ($R^2=.160$, p<.05). For national basic livelihood act recipients, the probability of having chronic disease was about 1.6 times higher (OR=1.597, 95 % CI=1.092-2.335, p=.016), compared with non-national basic livelihood act recipients. People with disabilities were 6.6 times more likely than those without disabilities to suffer from chronic disease (OR =6.571, 95 % CI=2.776-15.556, p<.001). Hospital outpatient user was 2.3 times higher than non-user (OR=2.260, 95 % CI=1.702-3.001, p<.001). Juveniles had a 1.7 times and 6.2 times higher likelihood of emergency rooms user (OR=1.654, 95 % CI=1.270-2.155, p<.001), and hospital outpatient user than adolescents (OR=6.208, 95 % CI=4.443-8.676, p<.001). Conclusion : The findings of this study suggest that health care services for juveniles is needed to manage chronic diseases that have an effect on medical expenditures.