• Journal of Digital Convergence
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• v.14 no.4
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• pp.239-249
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• 2016

In this study, the personality type of youths was divided into 4 areas: Open, Blind, Hidden and Unknown, and the four different types were analysed according to the impact on smartphone addiction. The survey was conducted on 406 middle school students in Jeonbuk province to assess the relationship between smartphone addiction of youth and the personality type. The results of this study are as follows: First, the difference of smartphone addiction in youth between genders is not large, but males were largely affected by tolerance, while females by difficulty of daily living. Second, the differences of smartphone addiction between grades found that difficulty of daily living and tolerance had a statistically significant impact. Third, the result of co-relationship between the Johari window type of mind and smartphone addiction showed that blind type and unknown type had a statistically significant positive relationship but open type had a negative impact. Finally, analysis of variables about whether a type of mind affected smartphone addiction showed that there was a relationship. The most serious type of addiction to smartphones showed in hidden type and unknown type. Therefore in developing programs to treat smartphone addiction it should seek specific measures to help these groups.

• Korean Journal of Health Education and Promotion
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• v.8 no.2
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• pp.34-51
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• 1991

In the research and analysis for survey practice on stability on the nutrition intake relities to an affect influence factor for variable reason to discovers dweller in cities area which is in order to prevent an unfortunately influence that thus obviously restricted by nutrition intake would be restoration. And then attempted to avhivement of stability fulfil to correct nutrition intake needed under the establish for effectiveness measured to provide the primary required resources be considerations must accomplish certain survey of goals. Therefore subject of criticism for survey was conducted during January 4 1990 to January 24 1990 through 20 days adapted place were Seoul, Taegu and Pohang cities dweller 1206 person be conducted under the expert survey personnel by directly the survey was conducted with the questional form has atapted for its survey conclusion of result be summarixed as bellow. 1) The subject of criticism for survey was ferformed to personnel adapted age group 40 to 49 were 24.9%, Age group 50 to 59 were 18.4% shows most adult group has significant higher value rate appearenced. In consideration the education level were evaluated the college grauated ; 48.8% and High School graduated: 30.1% shows that more educated level has significant higher rate value were appearenced. 2) On the subject of criticism to evaluation for adapted personnel by native place such as larger citypeople ; 29.6%, Farming and fishing village people were 28.4%, although the classfication of job analysis for estimation appearence rate were ; students 27.4%, Sales and service field personnel rate ; 15.1% and expert technique field personnel were ; 90% comprehensively appearenced. Although consideration for ecnomics situation review to the middle level shows of rate ; 61.7% and lower level was appearenced rate ; 23.9% of each others. 3) The people of resident in cities were appearenced nutrition intake has more than 2 weeks continuousely practiced by experiance rate shows ; 72% thus intake has experianced rate were 74.6% and female was 68.5% affact is comprehensively male has more many higher rate valued. In the classfication by age group 60 year old has 100% they have experiaced of nutrition intake and age group 50 to be appearenced its rate ; 76.4 % and age group 40 were 75.5% Thus result of survey for comparative rate shows in generally say more aged group has intake significant higher than younger age of group. Nevertheless, age group 10 years old be experienced of nutrition of intake rate ; 63.2% and age group 20 shows 73.9% was comparative more significant higher than age group 30 years old level adolescents.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.38 no.1
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• pp.85-91
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• 2020

The descendants of Jang, Chang-woo(張昌雨) reconstructed the Mangwijung (晩歸亭), which is currently located at Seha-dong, Seo-gu, Gangju Metropolitan City, in the context of succeeding the work of their ancestor. This study investigated the management viewpoint of Mangwijung that has been altered in going through the reconstruction and repairs processes, and examined the chronological history for a landscape of the Mangwijung Garden. First, in the Mangwijung Garden, three gazebos such as Mangwijung, Seubhyanggag(襲香閣) and Mukamjeongsa(墨庵精舍) stand in a row with three bridges between each of them in the middle of a wide pond. This is a group of gazebos that is a quite unique structure. Second, Hyowoodang(孝友堂) Jang, Chang-woo (張昌雨) built Mangwijung as a role of thatched cottage in order to teach younger students and enjoy the arts in his later life. The Mangwijung was reconstructed by the descendants of Jang, Chang-woo at the collapsed place later on in order to commemorate the achievements of their ancestor. By the way, it was revealed that the management of Mangwijung has been altered during the process of reconstruction. Third, when comparing the current appearance with those depicted in the 8 scenic views(八景) by Jang, Chang-woo and the literary works of his descendants, it was confirmed that the landscape and shape of the pond were damaged due to a road expansion caused by a construction of Seubhyanggag and Mukamjeongsa as well as an advancement of the city. Fourth, it is speculated that the pond of Mangwijung Garden is probably a spring not a reservoir to store the water stream that flows in.

• Korean Journal of Applied Biomechanics
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• v.16 no.1
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• pp.101-108
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• 2006

The purpose of this study was to compare GRF characteristics during walking wearing jogging and roller shoes. Twelve male middle school students (age: $15.0{\pm}0.0\;yrs$, height: $173.6{\pm}5.0\;cm$, weight: $587.6{\pm}89.3\;N$) who have no known musculoskeletal disorders were recruited as the subjects. Kinematic data from six S-VHS camcorders(Panasonic AG456, 60 fields/s) and GRF data from two force platform; (AMII OR6-5) were collected while subjects walked wearing roller and jogging shoes in random order at a speed of 1.1 m/s. An event sync unit with a bright LED light was used to synchronize the video and GRF recordings. GRF data were filtered using a 20 Hz low pass Butterworth. digital filter and further normalized to the subject's body weight. For each trial being analyzed, five critical instants and four phases were identified from the recording. Temporal parameters, GRFs, displacement of center of pressure (DCP), and loading and decay rates were determined for each trial. For each dependent variable, paired t-test was performed to test if significant difference existed between shoe conditions (p <.05). Vertical GRFs at heel contact increased and braking forces at the end of initial double limb stance reduced significantly when going from jogging shoe to roller shoe condition. Robbins and Waked (1997) reported that balance and vertical GRF are closely related It seems that the ankle and knee joints are locked in an awkward fashion at the heel contact to compensate for the imbalance. The DCP in the antero-posterior direction for the roller shoe condition was significantly less than the corresponding value for the jogging shoe condition. Because the subjects tried to keep their upper body weight in front of the hip to prevent falling backward, the DCP for the roller shoe condition was restricted The results indicate that walking with roller shoes had little effect on temporal parameters, and loading and decay rates. It seems that there are differences in GRF characteristics between roller shoe and jogging shoe conditions. The differences in GRF pattern may be caused primarily by the altered position of ankle, knee, and center of mass throughout the walking cycle. Future studies should examine muscle activation patterns and joint kinematics during walking with roller shoes.

• Korean Journal of Applied Biomechanics
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• v.19 no.2
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• pp.399-406
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• 2009

The purpose of this study was to compare the effect of wearing roller shoes and jogging shoes on kinematic characteristics in lower extremity during walking. Eight male middle school students(age: $15.0{\pm}0.0^{\circ}$ yrs, height $175.9{\pm}6.6cm$, weight: $616.3{\pm}84.9$ N) who have no musculoskeletal disorder were recruited as the subjects. Temporal parameters, step length, stride length, center of mass, velocity of CM, angle of segment, angular velocity and range of motion were determined for each trial. For each dependent variable, paired t-test was performed to test if significant difference existed between shoe conditions(p < .05). The results showed that stride length and velocity of CM in wearing roller shoes were significantly less than those found in wearing jogging shoes. These indicated that walking patterns may be changed by different shoe conditions and unstable braking condition because of wheel. Angle of ankle joint at LHC1 and LHC2 in wearing roller shoes was greater than the corresponding value for wearing jogging shoes. It seems that the ankle joints are locked in an awkward fashion at the heel contact to compensate for imbalance. Otherwise, dorsi flexion was not produced at the heel contact point in wearing roller shoes.

• Journal of Gifted/Talented Education
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• v.23 no.1
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• pp.1-24
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• 2013

The OSTG (Observation Scale for Teachers of the Gifted in Korean Traditional and Western Music) is one of the tools for screening of the Gifted in Korean traditional and Western music. So the validity and reliability of the OSTG-2 has an influence on securing validity of the whole identification process. The purpose of this study is to examine the validity and reliability of the OSTG-2 that input screening processing, and to suggest systematization of identification processing for the Gifted in Korean traditional and Western Music. For the achievement of this purpose, this study administered the OSTG-2 to 195 teachers of gifted students aged between 13 and 16 in the middle or high school for the arts. To validate the OSTG-2, I analyzed items of the OSTG-2, and conducted the exploratory and confirmative factor analysis. I also examined the internal consistency. As a result of the exploratory factor analysis, I collected 22 items of the OSTG-2 finally. Furthermore, I could identify psychological construct of the Gifted in Korean traditional and Western Music. The consequence of confirmative factor analysis, the model provided good fit to observed data. As a result of reliability analysis, the internal consistency of musicality verified cronbach' ${\alpha}$=.852, and the creativity verified cronbach' ${\alpha}$=.894, the task commitment verified cronbach' ${\alpha}$=.924. This result of validity study reflects the fact that the OSTG-2 is a valid scale and is able to input to gifted educational field instantly.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.375-385
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• 2015

The study is to develop specific strategies to prevent adolescents' depression, early detection and intervention services. This study was a descriptive research study with the purpose of predictors of protective factors for depression in adolescent using decision making tree analysis. The subjects for the study were 485 student in G city. This study collected data between September 23, 2013 and September 26, 2013 and analyzed them with frequency analysis, percentage, the mean and standard deviation, ${\chi}^2$-test, t-test, and a decision-making tree by using SPSS 20.0 program. From the data analysis, the predictive model for protective factors related to depression in adolescent with 4 pathways, 12 nodes. The common predicting variables of depression in adolescent were characteristics, family cohesion, parent adolescent communication, peer communication. The specialty of training data and test data was 76.0% and 65.4%. The sensitivity of training data was 78.2% and 63.7%. As for the classification accuracy, training data and test data explained 70.1% and 69.7%. Parent adolescent communication and peer communication to decrease depression of Korean middle and high school students are necessary. This study should contribute as baseline data for intervention strategies and planning ability of depression prevention in adolescents.

• Journal of the Korean Data and Information Science Society
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• v.27 no.1
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• pp.155-168
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• 2016

The purpose of this study was to investigate the prevalence of allergic diseases and its related factorsin Korean adolescents. The subjects were 72,435 middle and high school students. The data were analyzed by ${\chi}^2$ test and multiple logistic regression analysis. The prevalence of asthma, allergic rhinitis, and atopic dermatitis was 9.3%, 30.6%, and 23.4%, respectively. According to multiple logistic regression analysis, asthma was associated with gender, age, economic state, obesity, stress, sleep satisfaction, secondhand smoking, drug use, other allergic diseases and physical activity. Allergic rhinitis was associated with age, economic state, residential area, type of residence, obesity, stress, sleep satisfaction, smoking experience, secondhand smoking, alcohol drinking, other allergic diseases and physical activity. Finally, atopic dermatitis was associated with gender, age, economic state, residential area, obesity, stress, other allergic diseases and physical activity. Conclusion: These results will provide database for prevention and management of allergic diseases.

• Journal of the Korean Home Economics Association
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• v.40 no.4
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• pp.167-178
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• 2002

This study was carried out to compare the meal management attitudes among the mothers(41 years of age) who had middle school students between in industrial complex and in non-industrial complex. The subjects of each group were composed of 192 mothers Living in Ansan city in Korea, and this study was performed by self-administered questionnaire. The results of the present study were as follows: (1) Monthly family income and education level of parents were lower in industrial complex-family(ICF) than in non-industrial complex-family (NICF). The mean age of mothers and family size were similar in two groups, but the frequency of mothers employed was higher in ICF than in NICF Most mothers in ICF worked as a manual- or skilled-laborer. (2) The mothers in ICF tended to have less positive attitude in sewing balanced meals to their families than those in NICF. The score of nutritional knowledge was lower in mothers in ICF than those in NICF. (3) The percentage of expense for purchasing staple foods to total expense of foods tended to be higher in ICF than in NICF. Engel's coefficient was higher, and the frequency and expense for eating out was lower in ICF than in NICF (4) The mothers in ICF did not try to use their time and energy efficiently for meal management. (5) The mothers in ICF were less active in sewing the pleasurable meals including the provision of various cooking methods, flavors, and temperatures, to their families, than those in NICF. Above findings show that family environment such as industrial complex-families and non-industrial complex-families influences the meal management attitudes of mothers. The mothers in ICF had a less positive altitudes for scientific meal managements than those in NICF even though they had the limited resources including money, time and energy for meal management because most mothers in ICF had a job that were paid low salary and finished irregularly or late. Therefore, these results underscore the need to provide the sound nutritional education for the mothers in ICF with respect to reasonable meal management for 'optimal nutrition of family'. In addition, the government should try to make the various welfare policies to improve nutritional status of low income famines including the poor industrial complex-families.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.14 no.1
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• pp.95-102
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• 2003

Objectives：This study was aimed at examining the emotional predictors of adolescent suicidal ideas in a community. Methods：The subjects were 1909 middle and high school students(936 males, 973 females) in Koyang-shi. We evaluated all subjects using Center for Epidemiologic Study for Depression(CES-D), Revised Children's Manifest Anxiety Scale(RCMAS), Korean-Youth Self Report(K-YSR), Psychological Self-1 of Offer's Self Image Questionnaire(PS-1 of OSIQ) and Suicide Ideation Questionnaire (SIQ). We compared the PS-1 of OSIQ scores of Anxious-depressive group(above cut-off points of CES-D, RCMAS and K-YSR) to those of control group, and conducted correlation analysis and stepwise multiple regression analysis to all subjects. Results：The number of anxious-depressive group was 126(6.58%) among 1909 subjects with significant gender difference(M：F ratio 1：1.5). Both PS-1 of OSIQ and SIQ scores were significantly higher in Anxious-depressive group than in control group. There were significant correlations among the scales：CES-D, RCMAS, A/D of K-YSR, PS-1 of OSIQ and SIQ. Through stepwise multiple regression analysis, we found that significant predictors of suicidal idea were CES-D, RCMAS and A/D of K-YSR. Conclusion：Anxious-depressive adolescents may be the high-risk group for suicidality and need preventive interventions of suicidality in a community.