• Korean Journal of Human Ecology
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• v.5 no.1
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• pp.1-14
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• 1996

The purpose of this study was to examine children's dramatic play and dramatic play themes in the same-age and mixed-age kindergarten classrooms. The subjects were 45 children in three classrooms of 4-year-olds, 69 children in three classrooms of 5-year-olds, and 60 children in three mixed-age classrooms of 4-and 5-year-olds. Observations were conducted by videotape recordings. Observation periods were of five-minutes duration. There were ten observations of children's indoor free-play periods. Four-and five-year-olds in mixed-age classrooms were more likely to engage in group-dramatic play than 4-and 5-year-olds in same-age classrooms. Four-year-olds in mixed-age classrooms were more likely to engage in domestic and family, war/violence, school, animal, and vehicle play themes than 4-year-olds in same-age classrooms. However, 5-year-olds in mixed-age classrooms were more likely to engage in family and school play themes than 5-year-olds in same-age classrooms. 5-year-olds in same-age classrooms were more likely to engage in vehicle and animal play themes than 5-year-olds in mixed-age classrooms. 5-year-olds in same-age classrooms did not differ from 5-year-olds in mixed-age classrooms on the war/violence themes used during dramatic play. In terms of sex differences, boys were more likely to engage in violence, adventure fantage themes than girls. Conversely girls were more likely to engage in family/marriage static play themes than boys.

• Journal of Korea Multimedia Society
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• v.23 no.7
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• pp.862-869
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• 2020

This study attempted to analyze human brain responses toward visual content through EEG signals and intended to measure brain wave reactions of different age groups to determine the sexuality level of the media. The experimental stimuli consist of three different video footage (rated ages 12, 15, and 18) to analyze how subjects react in situations where they actually watch sexual content. For measuring and analyzing brain wave reactions, EEG equipment records alpha, beta, and gamma wave responses of the subjects' left and right frontal lobes, temporal lobes, and occipital lobes. The subjects of this study were 28 total and they are divided into two groups. The experiment configures a sexual content classification scale with age or gender as a discriminating variable and brain region-specific response frequencies (left/right, frontal/temporal/occipital, alpha/beta/gamma waves) as independent variables. The experimental results showed the possibility of distinguishing gender and age differences. The apparent differences in brain wave response areas and bands among high school girls, high school boys, and college students are found. Using these brain wave response data, this study explored the potential of developing algorithm for measurement of age-specific responses to sexual content and apply it as a film rating.

• The Research Journal of the Costume Culture
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• v.18 no.6
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• pp.1138-1152
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• 2010

The purposes of this study are to segment women consumers on the basis of clothing shopping orientation and to investigate clothing purchasing behaviors of each segmented group by age variable for development of effective fashion marketing strategies to meet very changeable modern consumers' needs. The research methodology is survey and subjects were 650 women aged from 20s to 60s. The questionnaire consist of measurement items for clothing shopping orientation, clothing purchasing behaviors and subjects' demographic attributions. The data were analyzed by Cronbach's ${\alpha}$, factor analysis, cluster analysis, $x^2$ test, ANOVA and Duncan's multiple range test, using SPSS program. The results are as follows. First, 5 factors were emerged on clothing shopping orientation. Second, women consumers are segmented into 4 types(conspicuous, convenient, pleasurable, and unconcerned type) by clothing shopping orientation. Third, each consumer type divided by age variable showed some important differences on demographic characteristics and various clothing purchasing behaviors. Therefore, the results of this study support that clothing shopping orientation can be useful as one of the effective differentiated variables to segment women consumer market and age variable has important mediate effects on the differences of clothing purchasing behaviors by clothing shopping orientation type.

• Korean Journal of Veterinary Research
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• v.50 no.2
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• pp.133-137
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• 2010

Rabies virus (family Rhabdoviridae, genus Lyssavirus, RV) is the causative agent of rabies in mammals. We conducted a sero-epidemiological survey for RV using sera from South Korean stray and companion dogs in the present study. A total of 533 canine serum samples were collected between February 2006 and December 2007 and were screened for rabies immunity with a neutralizing peroxidase linked assay. Both companion (49.1%) and stray (60.1%) dogs demonstrated RV seropositivity. Regional RV antibody prevalence was measured in the Jeju (87.5%), Gyeonggi (62%), Gyeongsang (59.1%), Jeonra (42%), Chungcheong (37.9%), and Gangwon (30.4%) provinces. Prevalence increased with age but did not exceed 80% in any age group. Stray and companion dogs had RV antibody prevalence values of 26.7% and 23.7%, respectively. Seroprevalence was significantly associated with age $({\chi}2\;=\;9.46;\;p\;=\;0.024)$ for companion dogs, although this association was not evident in stray dogs. There were no significant differences in age between stray and companion dogs and no gender differences in RV seroprevalence. Our results suggested that a widespread and reinforced vaccination program must be applied to Korean dogs.

• Korean Journal of Human Ecology
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• v.17 no.6
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• pp.1151-1165
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• 2008

This study examined the current status of consumer competency such as consumer knowledge, consumer role attitude, and consumer skill and the related factors among female marriage immigrants. The data were collected from 220 female marriage immigrants living in Yeungnam region. The results of this study were as follows. First, the mean for consumer knowledge was 5.555, the mean for consumer role attitude was 4.067, and the mean for consumer skill was 3.841. Second, the results of t-tests and ANOVA showed that there were differences in the category of consumer knowledge according to age, educational level, marriage duration period, and Internet contact frequency. And the differences were found in age, educational level. communication with family about consumption and TV contact frequency for consumer role attitude, whereas in age, educational level, marriage duration period, employment status, communication with family about consumption and communication with friends about consumption for consumer skill. Third, according to the regression analyses, educational level was significant for consumer knowledge. Additionally, communication with family about consumption and TV contact frequency were significant for consumer role attitude, and age, educational level, communication with family about consumption and communication with friends about consumption were significant for consumer skill.

• Journal of the Korean Society of Clothing and Textiles
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• v.28 no.3_4
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• pp.509-520
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• 2004

The aim of this study was to provide the basic 2-dimensional statistics requisite in the siting system and design of gloves. The 64 static measurements were selected to provide information about hands. Participants in the study were 824 adults, aged between 18 and 64. Subjects were divided into four age groups: 18 to 29, 30 to 39, 40 to 49, and 50 to 64, and separated according to sex. Statistical tests such as Descriptive Analysis, and Anova were conducted to analyze the data and ascertain the differences among the ages. The disparities between sex groups were compared by T-test. In addition, correlation among the 57 measurements was analyzed and the results were compared to the data from Japanese and other studies. The results indicated that all the measurements were significantly larger in the male group. There were significant differences among age groups for most hand circumferences, breadths and thickness items. As the age increased, the hand circumferences, breadths and thickness items became wider and thicker. In addition, as the age increased, the mean measurement value of the length items decreased, so that it became shorter. Hand length was highly correlated with finger length, palm length and height. Maximum hand circumference II was highly correlated with hand circumferences, hand breadth and weight.

• Imaging Science in Dentistry
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• v.40 no.2
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• pp.83-87
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• 2010

Purpose : This study was to determine the relationship between age and the mandibular cortical bone thickness on panoramic radiograph. Materials and Methods : Panoramic radiographs of 360 patients (180 men and 180 women) over 20 years old, who visited the Chonbuk National University Hospital from January to December in 2007, were assessed. The subjects were divided into 5 age groups. Five indices such as cortical bone thickness at the gonion (GI), antegonion (AI), and below the mental foramen (MI), the panoramic mandibular index (PMI), the mandibular cortical index (MCI) were measured on panoramic radiographs. Results : All five indices including GI, AI, MI, PMI, and MCI showed significant differences between third decade and over 8 decade groups (p<0.05). PMI, MI and GI showed significant differences with gender statistically (p<0.05). Conclusion : The mandibular cortical bone thickness showed negative correlation with age, and the value of the thickness (PMI, MI, and GI) was greater in men than in women.

• Annals of Clinical Neurophysiology
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• v.7 no.2
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• pp.83-87
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• 2005

Background: The study of the medial antebrachial cutaneous nerve (MABCN) is an underused electrodiagnostic tool. But its use is often crucial for assessing mild lower brachial plexus or MABCN lesions, and sometimes for differentiating an ulnar mononeuropathy from a lower brachial plexopathy. This study was designed to know the difference of amplitude and velocity in a stimulation method (orthodromic vs antidromic), side of an arm and sex according by age. Method: MABCN conduction studies were performed orthodromically and antidromically in 90 subjects (42 women and 48 men, ranging from 22 to 79 years of age). We divided subjects into three groups by age (group 1: 20-39 years, group 2: 40-59 years, group 3: 60-79 years). The mean sensory nerve action potential amplitudes and sensory nerve conduction velocities in each group was compared by stimulation method, side of an arm and sex. Result: The amplitudes and velocities made a significant difference between orthodromic and antidromic method in all age groups. At comparison in amplitude and velocity by side of an arm, only amplitude was significantly higher in right arm than left by any stimulation method. The amplitudes and velocities were of no statistically differences in sex except amplitude checked orthodromically in right arm. Conclusion: This study suggests that there is the differences in conduction study of MABCN by stimulation method and side of an arm.

• Human Ecology Research
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• v.56 no.3
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• pp.217-232
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• 2018

This study analyzes the determining factors of the digital divide index in married female immigrants based on panel data from the National Information Society Agency (2016). There were 287 participants, all of whom owned a smartphone. The study divided the consumer groups into three age groups: 20-29, 30-39, and 40-49 years. SPSS 19.0 was used to statistically analyze the results. The findings of the analysis were described using frequency, descriptive, cross-tab, ANOVA, correlation, and multiple regression analysis. The findings of this research are as follows. First, nationality, acquisition of Korean nationality, and duration of living in Korea were significantly different among the three groups. Second, digital competency and online service usage were also significantly different among the three groups. Third, PC usage ability, mobile usage ability, and diversity of online usage significantly influenced the digital divide index in all age groups. Fourth, residential duration in Korea significantly decreased the digital divide index for groups in their 30s and 40s. Fifth, Loneliness significantly increased the digital divide index for groups in their 20s. Sixth, depression significantly increased the digital divide index for groups in their 30s. The study will help to further understand age-related differences and the digital divide of married female immigrants.

• The Korean Journal of Emergency Medical Services
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• v.13 no.1
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• pp.49-60
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• 2009

The purpose of this study was to investigate the creativity and problem-solving of EMT students in Gwangju Metropolitan City. Data was collected by self-reported questionnaire from 106 EMT students from December 1, to December 20, 2008, Data collected were analyzed by technical statistics and correlation analysis using $SPSS/PC^+$ 12.0 program, The results were as follows : 1. The subjects were 49 males (46%) and 57 females (54%). 2. According to gender characteristics and creativity of the subjects, there were not significant differences(t = 1.02, p = .312). To gender characteristics and problem-solving of the subjects, male were higher grade more than female and there were significant differences(t = 2.04, p = .044). 3. According to age characteristics and creativity of the subjects, there were not significant differences(F = 8.73, p = .421). To age characteristics and problem-solving of the subjects, there were not significant differences(F = 2.314, p = .104). 4. There was positive correlation between creativity and problem-solving(r = .489, p = .000). Therefore, these findings showed that more studies needed about creativity and problem-solving on EMT students and creative problem-solving programs be started for these EMT students in order to development their creativity and problem-solving.