• The Korean Journal of Community Living Science
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• v.24 no.1
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• pp.71-84
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• 2013

In this study we examine the relationship between the social participation in the early adolescents and school adjustment as well as the mediating effects of a sense of community. Findings provide ways of intervention that can increase a youth's school life. Based on samples of 2,351 first grade middle school students from the data in the 'Korea Youth Panel Survey' administered by the National Youth Policy Institute, we analysed the correlation among the variables. The results are as follows. First, the social participation of youths showed a major influence on school adjustment, and was identified as: the more the students participate in social activities, the better the students get adjusted to school. Second, the social participation has a significant effect on sense of community. In other words, the more the students participate in social activities, the more the students get a sense of community. Third, a sense of community mediated the process of social participation on school adjustment. These findings indicate that in order to increase a youth's school adjustment, a promotion of social participation and an effort to increase a sense of community are required. The implications of these findings suggest that by intervening social welfare and policy, can improve the integrity of a youth's school life.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.17
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• pp.7535-7540
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• 2015

Background: Early initiation of smoking and chewing of diverse forms of tobacco among youth in India is a significant driver for tobacco epidemic in India. Several socio-demographic factors are predictors of tobacco use in populations, especially among youth. Interventions which address these socio-demographic factors can help policy makers to curb new initiations and avert morbidity and mortality due to tobacco use. Objective: To study the various sociodemographic variables associated with tobacco use among youth in India. Materials and Methods: Secondary analysis of data from the Global Adult Tobacco Survey-India 2009-10 for the age group of 15-24 years was performed and predictors of smoking and smokeless tobacco were analyzed using data on occupation, education, and other sociodemographic factors. Results: In India there are a total of 51.3 million (22.1%) youth (15-24 years) tobacco users. Of these 35.1 million consumes chewable tobacco (15.1%), 16.2 million smoke (7%) and 1.6 million are dual users (3.1%). Males, urban, less educated, un-employed and those belonging to middle class preferred smoking over chewing; whereas, females, rural, students and those belonging to low socio-economic class are predictors of smokeless tobacco use. The major determinants of dual users are male sex, poor socio-economic strata and student class. The overall tobacco use was higher among males, rural populations, lower socioeconomic strata and un-employed class. Conclusions: India's youth is more susceptible to the tobacco addiction, especially of smokeless tobacco. Youth from rural India especially students, girls and those from poor socio-economic strata prefer to use smokeless tobacco products whereas urban, male and those less educated prefer smoking tobacco products. More population-based and region-focused research is needed to understand initiation patterns into tobacco use among youth so as to inform policymakers to devise new policy measures to curb the growing epidemic.

• Korean Journal of Child Studies
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• v.38 no.2
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• pp.93-105
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• 2017

Objective: This study aimed to investigate the trajectories of mobile phone use with reference to its purposes, and to examine the effects of gender and interpersonal factors on the same in early adolescents. Methods: Latent growth modeling was used with a sample of 2,378 early adolescents from Grade 4 to 8. Data from the Korean Children and Youth Panel Survey conducted by the National Youth Policy Institute were used. Results: In boys and girls, overtime, the level of mobile phone use for communicating with family decreased, while that for communicating with friends increased. Level of mobile phone use for entertainment increased across time in boys; however, in girls, it increased from Grade 4 to 6 and decreased thereafter, until Grade 8. Gender was associated with the changes of mobile phone use according to the purpose of the same. Positive parenting, negative parenting, relationships with peers, and relationships with teachers predicted changes in mobile phone use for communicating with friends. Conclusion: These findings suggest that the processes involved in the trajectories of mobile phone use in early adolescence operate differently based on the purposes of the same. Additionally, the present results show that interpersonal factors are highly associated with mobile phone use for communicating with friends.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.346-349
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• 2001

As intensifying competition alters the dynamics of the wireless industry and carriers begin to tap out traditional subscribers-business users and early adopters-wireless operators have come under pressure to begin expanding their target subscriber base. While alternative market segments such as youths, senior citizens, and lower-income or credit-challenged customers often offer less compelling fundamentals (i.e., lower average revenue per user and higher churn rates), carriers, in their race to increase market share, can no longer overlook these potential market segments. In particular, the youth market is a very appealing market segment for carriers to focus on for several reasons. Carriers in many parts of the world have already begun recognizing the compelling advantages of concentrating on youths and teens. This paper will examine the dynamics of the youth/teen population and what attributes make this group an appealing market for wireless carriers. In addition, it will take a look at new emerging technologies that may help carriers attract the youth market especially mobile data, entertainment applications, and wireless messaging. This paper also studies the sensation that carriers in Europe and Japan are achieving with the youth population and suggests how carriers in Korea can emulate that success.

• The Journal of the Korea Contents Association
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• v.20 no.3
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• pp.584-599
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• 2020

This study aimed to explore goals and development process of Child·youth Friendly Cities certified by UNICEF Korea and to provide a research basis for promotion and development of Child·youth friendly cities in Korea. Researchers conducted in-depth interviews with experts in two cities designated as UNICEF Child·youth Friendly Cities in early days. The findings showed that in order to successfully build and maintain friendly cities for children and youth, active interest and efforts of local governors and government officials for promoting friendly cities and policy enforcement based on four principles of child rights were required as prerequisite. In relation to managing Child·youth friendly cities, two cities selected as cases of this study provided universal social welfare programs for children and youth and expanded after-school care services for local students. Moreover they tried to promote decision making and protect rights of children and youth by allowing them to participate in community programs. The important distinctions of these cities were that they established a department exclusively for children and youth and closely cooperated with experts in private sectors. However, participants agreed that there should be more comprehensive and multilateral approach for building Child·youth friendly cities, adoption of incentive system for certification of Child·youth friendly cities and more active promotion of the UNICEF project. In conclusion, the researchers proposed policy implications.

• The Bulletin of The Korean Astronomical Society
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• v.43 no.2
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• pp.59.1-59.1
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• 2018

SNe light curves have been used to understand the expansion history of the universe, and a lot of efforts have gone into understanding the overall shape of the radioactively powered light curve. However, we still have little direct observational evidence for the theorized SN progenitor systems. Recent studies suggest that the light curve of a supernova shortly after its explosion (< 1 day) contains valuable information about its progenitor system and can be used to set a limit on the progenitor size, R*. In order to catch the early light curve of SNe explosion and understand SNe progenitors, we are performing a ~8hr interval monitoring survey of nearby galaxies (d < 50 Mpc) with 1-m class telescopes around the world. Through this survey, we expect to catch the very early precursor emission as faint as R=21 mag (~0.1 Rsun for the progenitor). In this poster, we outline this project, and provide updates on IMSNG projects during 2017/2018 seasons.

• Journal of the Korean Society of Child Welfare
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• no.57
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• pp.9-42
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• 2017

The purpose of this study is to understand the life experience of youth who discharged from out-of-home-care and lived as the unemployed NEET(Not in Education, Employment or Training) youth not established in life. For this study, we collected in-depth interviews with five youth in career moratorium or early discharge from out-of-home care. The results of the study were as follows: we divided into six themes such as "I cannot lean on family of origin", "unstable life", "strayed by wandering and prejudice", "I need someone to rely on", "belated regrets", and "constantly dreaming of resurgence"; and the six themes were analyzed separately in the sub-categories. As a result, we found out that the youth in career moratorium lived a life of regret and recovery in the unstable life journey. Based upon the results, we suggested social welfare practice and policy implications in order to systematically support the NEET youth after discharge from out-of-home-care.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.2
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• pp.31.1-31.1
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• 2016

SNe light curves have been used to understand the expansion history of the universe, and a lot of efforts have gone into understanding the overall shape of the radioactively powered light curve. However, we still have little direct observational evidence for the theorized SN progenitor systems. Recent studies suggest that the light curve of a supernova shortly after its explosion (< 1 day) contains valuable information about its progenitor system and can be used to set a limit on the progenitor size, R*. In order to catch the early light curve of SNe explosion and understand SNe progenitors, we are performing a ~8hr interval monitoring survey of nearby galaxies (d < 50 Mpc) with 1-m class telescopes around the world. Through this survey, we expect to catch the very early precursor emission as faint as R=21 mag (~0.1 Rsun for the progenitor). In this talk, we outline this project, and present a few scientific highlights, such as the early light curve of SN 2015F in NGC 2442.

• Journal of the Korean Society of Clothing and Textiles
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• v.23 no.1
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• pp.147-158
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• 1999

This study focused on situational simularity of psychedelic expressed in the mid-1960s with culture including costume in the end of 20th century. So this study is composed of psychedelic concept and the comparision of temporal background and general characteristics of psychedelia in the 1960s and 1990s and relationship with Art-Nouveau which has originated psychedelia and psycheelic image including mysticism play illusionism and narcissism. The New psychedelic revival of the early 1980s came at a time when as in the mid-1960s the world's attentions were firmly focused on British youth. The same could be said of the mid-1990s when 'BriPop' once again has international appeal and the result has been a kind of New New Psychedelic revival with all manner of British youth styles from the 1960s blended together. The swirling patterns hallucinogenic colors and space-aged designs of the psychedelics have become a symbolic representation of cocktail of youth sex and optimism

• Journal of Preventive Medicine and Public Health
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• v.56 no.1
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• pp.59-66
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• 2023

Objectives: The aim of this study was to evaluate the effect of body weight status and sleep duration on the discrete-time hazard of menarche in Korean schoolgirls using multiple-point prospective panel data. Methods: The study included 914 girls in the 2010 Korean Children and Youth Panel Study who were in the elementary first-grader panel from 2010 until 2016. We used a Gompertz regression model to estimate the effects of weight status based on age-specific and sex-specific body mass index (BMI) percentile and sleep duration on an early schoolchild's conditional probability of menarche during a given time interval using general health condition and annual household income as covariates. Results: Gompertz regression of time to menarche data collected from the Korean Children and Youth Panel Study 2010 suggested that being overweight or sleeping less than the recommended duration was related to an increased hazard of menarche compared to being average weight and sleeping 9 hours to 11 hours, by 1.63 times and 1.38 times, respectively, while other covariates were fixed. In contrast, being underweight was associated with a 66% lower discrete-time hazard of menarche. Conclusions: Weight status based on BMI percentiles and sleep duration in the early school years affect the hazard of menarche.