• Korean Journal of Human Ecology
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• v.13 no.6
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• pp.891-901
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• 2004

This study is to investigate the degree of consumers' non-ethical perceptions and behaviors, and to explore related variables such as demographic variables, idealism and relativism. The data used in this study were obtained by surveying 237 college students from 10th through 24th of October, 2002 in Kimhae city. We conducted a statistical analysis of the data, using percentiles, frequencies, means, t-test, ANOVA, and Multiple Regression. Consumers' non-ethical perceptions and behaviors were measured by modifying Consumer Ethics Scale(CES, Muncy & Vitell, 1992). The CES scale comprises 4 sub-factors: actively benefiting from illegal activity(CES1), passively benefiting(CES2), actively benefiting from questionable action(CES3), no harm/no foul(CES4). Average scores of consumers' non-ethical perceptions and behaviors marked below a mid-value, which means that most of the students are basically ethical. The related variable of consumers' non-ethical perceptions was idealism. The related variables of consumers' non-ethical behaviors were idealism and the amount of discretionary money. The results show that most of the participants are basically ethical as a consumer. However, the results related with the CES4 sub-factor which includes consumer attitudes toward copyrights of consumer softwares and music CDs tell us that they are relatively non-ethical. This claims an importance of consumer education to college students in regards to intellectual property.

• Journal of Korean Society on Water Environment
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• v.23 no.5
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• pp.740-747
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• 2007

The advanced wastewater treatment plant of leather industry was selected to evaluated with its effluent water quality and statistical characteristics. Most of pollutants removal efficiencies were over 90% as well. And 95% reliability of effluent concentration were 106.8 mg/L of $COD_{mn}$, 72.04 mg/L of TN. However Effluent quality of TN exceeds the regulated limit. The range of coefficient of variation (CV) were between 0.18 and 2.49. Also, coefficient of reliability (COR) were between $0.03(BOD_5){\sim}0.63(COD_{mn})$ and 0.43 in terms of T-N, $Z_{l-a}$(Normalized Percentiles) value were 55.7 and 2.25 in terms of $BOD_5$ and T-N as shown in the following table.

• Korean Journal of Childcare and Education
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• v.2 no.2
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• pp.165-185
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• 2006

The purposes of this study were (1) to investigate the relationship of conflict components, and (2) to investigate interaction of conflict participants. Subjects were ninety-four 3-, 4- and 5-year-olds recruited from eleven child care centers in Seoul, Kyonggi and Incheon province. Interaction process between these young children were recorded by a video camera, and the scenes were transcribed for analysis of peer conflict situations which occurred between two children. Statistical methods used for data analysis were frequencies, percentiles, means, standard deviations, Chi-square. First conflict components are interrelated. There was a significant difference conflict resolution strategies according to conflict issue, and a significant difference conflict outcomes according to conflict resolution strategies. Also conflict outcomes were related to conflict emotion expression. Second, the stratigies interaction of conflict participants were significant and conflict emotion expression of conflict participants were significant.

• Journal of Family Resource Management and Policy Review
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• v.22 no.1
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• pp.23-37
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• 2018

This study aimed to investigate resource transfer for baby boomers' adult children and related factors pertaining to baby boomers' later-life preparation. This study was conducted in 2016 using written questionnaires completed by 405 baby boomers residing in Seoul and metropolitan cities in South Korea. The data were analyzed using IBM SPSS Statistics 23.0 and the following statistical methods: frequency, percentiles, the mean, standard deviation, a t-test, one-way ANOVA, Cronbach's alpha, and hierarchical multiple linear regression analysis. Baby boomers' average level of later-life preparation was found to be 3.45/5, a relatively rational score. Baby boomers tended to transfer more resource from their adult children when they had many adult children, were more satisfied with their romantic relationship. Baby boomers' level of later-life preparation was higher when there was lesser resource transfer of their adult children. The greatest influential variables pertaining to the respondents' later-life preparation were their family's income, children's marital status, satisfaction with their romantic relationship, and level of transfer from their adult children. It was concluded that baby boomers have insufficient later-life preparation in terms of finances due to their need to support their adult children; thus, nation-wide practical programs are needed to prepare baby boomers for a happy life.

• Journal of the Ergonomics Society of Korea
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• v.29 no.3
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• pp.383-391
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• 2010

The present study evaluated a preliminary control room (CR) design of radioactive waste facility using the $JACK^{(R)}$ human simulation system. Four digital humanoids ($5^{th}$, $50^{th}$, $95^{th}$, and $99^{th}$ percentiles) were used in the ergonomic evaluation. The first three were selected to represent 90% of the target population (Korean males aged 20 to 50 years) and the last to reflect the secular trend of stature for next 20 years in South Korea. The preliminary CR design was assessed by checking its compliance to ergonomic guidelines specified in NUREG-0700 and conducting an in-depth ergonomic analysis with a digital prototype of the CR design and the digital humanoids in terms of postural comfort, reachability, visibility, and clearance. For identified design problems, proper design changes and their validities were examined using JACK. A revised CR design suggested in the present study would contribute to effective and safe operations of the CR as well as operators' health in the workplace.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.23 no.1
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• pp.89-97
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• 2020

Purpose: Obese children may often present with advanced bone age. We aimed to evaluate the correlation between factors associated with childhood obesity and advanced bone age. Methods: We enrolled 232 overweight or obese children. Anthropometric and laboratory data, and the degree of nonalcoholic fatty liver disease (NAFLD) were measured. We analyzed factors associated with advanced bone age by measuring the differences between bone and chronological ages. Results: The normal and advanced bone age groups were comprised of 183 (78.9%) and 49 (21.1%) children, respectively. The prevalence of advanced bone age significantly increased as the percentiles of height, weight, waist circumference, and body mass index (BMI) increased. BMI z-score was higher in the advanced bone age group than in the normal bone age group (2.43±0.52 vs. 2.10±0.46; p<0.001). The levels of insulin (27.80±26.13 μU/mL vs. 18.65±12.33 μU/mL; p=0.034) and homeostatic model assessment-insulin resistance (6.56±6.18 vs. 4.43±2.93; p=0.037) were significantly higher, while high density lipoprotein-cholesterol levels were lower (43.88±9.98 mg/dL vs. 48.95±10.50 mg/dL; p=0.005) in the advanced bone age group compared to those in the normal bone age group, respectively. The prevalence of advanced bone age was higher in obese children with metabolic syndrome than in those without (28.2% vs. 14.7%; p=0.016). The prevalence of advanced bone age was higher in obese children with a more severe degree of NAFLD. Conclusion: Advanced bone age is associated with a severe degree of obesity and its complications.

• Korean Journal of Child Studies
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• v.22 no.2
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• pp.255-275
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• 2001

The purpose of this study was to construct a rating scale of infant and toddler development for the use of teachers in their observations of children during daily activities. The scale consists of 201 items measuring motor, self-help, socio-communicative, socio-emotional, and cognitive development. Quality, reliability and validity were examined with the use of a nation-wide sample of 1,245 children from classes of 1- and 2-year-olds. Tests on validity and reliability were high in terms of content validity evaluated by early childhood professionals, concurrent validity with the Bayley Scale, internal consistency among raters, and test-retest reliability. Factor analysis showed that the developmental areas of infants and toddlers are not clearly differentiated but are interrelated with each other. The scale was standardized by providing nation-wide norms with raw scores, percentiles, and standardized scores.

• Korean Journal of Child Studies
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• v.26 no.6
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• pp.217-236
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• 2005

The purpose of this study was to investigate whether preschoolers' peer interaction type and level differ depending on pair compositon and task type. Preschoolers' peer interaction type and level were compared among three kinds of pair compositions(with a Younger peer, with a same-age peer, and with an older peer) as well as between two types of tasks(tasks involving real objects, and tasks involving pictures). Subjects were seventy-eight four-year-old children recruited from six child-care centers in Seoul and Gyeonggi Province. The preschoolers were randomly assigned to one of the three kinds of pair compositions. Interaction processes of the pairs were recorded by a video camera, and the scenes were transcribed for content analyses. The traniscribed peer interactions were coded according to the categories that the researcher had generated. Statistical methods used for the data analysis were frequencies, percentiles, means, standard deviations, repeated measures ANOVA, paired t-tests, one-way ANOVA. Major findings of this study were as follows: There were significant differences preschoolers' in interaction type depending on the pair compositions and the types of tasks. The preschoolers paired with the older peer used abstract collaborative explanations more frequently than in two other types of pair composition. The preschoolers paired with the younger peer used explanations without collaboration and parallel behaviors more frequently than in two other types of pair composition.

• Journal of the Korean Data and Information Science Society
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• v.24 no.3
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• pp.437-444
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• 2013

The object of study is to verify the distributions of response packets of 3 portal sites such as Naver, Daum, Nate. The period of experiments is from May 19th 2010 to November 7th 2012 and the number of experiments is 4,642. The distributions of Naver, Nate are biomodals. The distribution of Daum has long right tails. 3 distributions are different under 1% significance level using chi-square test and two sample Kolmogorov-Smirnov test. From proportions and percentiles, Naver has a distribution with the largest values. Nate is the second place, and Daum has a distribution with the smallest values. We must make portal pages light to increase response speed including other technologies. We expect our results to activate competition among portal sites.

• Journal of Korean Home Economics Education Association
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• v.4 no.1
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• pp.57-75
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• 1992

The purpose of this study was to survey the actual condition of education on the western clothing construction in Home Economics and Housework curriculum of high school. And the finding of this study will the helpful to the persons in authority who take part in the course of compilation of the western clothing contruction. The subjects of this study were 101 high school teachers in Chonbuk province. Their responses to the questionaires were analyzed by frequencies and percentiles. The major findings of the study were as follows. 1. Most high school had only a little educational facilities for learning of clothing construction of, if any, they could only show examples in practice. 2 In case of making clothes, students who sew by hand carried out drafting and cutting on their desks in the classroom. When they have practical training, 56.4% of them cheese only one of one-piece dress trousers, and skirt which are presented in the textbook. The related teachers indicated that content composition of the texbook was not fit for the purpose of the students level, and also pointed out the deficiencies of educational facilities, lack of teacher’s research and training, and lack of school hours of evaluation, practical skill was performed in parallel with paper-test at 73.3%. 3. Pajamas and one-piece dress presented in the textbook were the most suitable for the practice at 64.7%. They hoped that illustrations in textbook are so large and full that clothes made through the practice can be worn. Also they hoped that their opinions and wearable guidance will be reflected in the textbook. They emphasized the need of western clothing construction unit because of acquistion of elementary knowledge. The current amount of content composition was enough or excessive. In addition, they understood the curriculum of high school is rather closely connected with that of middles school. Their recognition of the rate of difficulty is very similar to that of other school teachers. They recognized the goal of learning should be applied to the real home life.