• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.18 no.8
• /
• pp.145-151
• /
• 2017

Many adolescents in high schools are experiencing school maladjustment by academic stress under the reality of higher-education-oriented schooling. A review of studies of academic stress and school adjustment reveals that ego-optimism is predicted as one of the moderating variables to help adolescents lessen academic stress and increase their school adjustment. The main purpose of this study was to verify the moderating effects of ego-resilience on the relationship between academic stress and school adjustment of adolescents. For this, 496 high school students of tenth and eleventh grade were respectively collected through cluster sampling to be surveyed, and then correlation analysis and moderated regression analysis were conducted. The major findings were as follows. First, there was a negative relationship between academic stress and school adjustment and between academic stress and ego-resilience, but a positive relationship between school adjustment and ego-resilience. Second, the moderating effects of ego-resilience on the relationship between academic stress and school adjustment were not found, although optimism, one of ego-resilience's sub-factors, had a significant moderating effect on them, implying that adolescents' optimism should be enhanced to lessen academic stress and ensure they have a successful school life. The study concludes that optimism is a protective factor for school adjustment caused academic stress and thus schools need to make active efforts to enhance their students' optimism.

• Korean Journal of Social Welfare Studies
• /
• v.40 no.3
• /
• pp.41-68
• /
• 2009

Grandparent-grandchildren family adolescents(GGFAs) need to be well discussed because they tend to be more influenced by the negative surroundings than ordinary family adolescents. Over the past few years, several studies have been made on the correlation between the risk factor, the protective factor and the school resilience of GGFAs, but these studies have the limit to explain the only correlation between the one factor and the school resilience. So the purpose of this study was to examine not only the direct effect between the risk factor and the protective factor, but also the parametric path and effect that the one factor has influence on the correlation between the another factor and the school resilience of GGFAs. We investigated the 328 GGFAs in Korea, and the analytic method used was the Structural Equation Modeling(SEM). The followings are the results of this paper. It was found that the model adaptability had a considerable validity by inspecting the SEM, which showed not only the direct effect between the risk factor, protective factor and the school resilience of GGFAs, but also the mediation effect by the protective factor. The risk factors - the indifference of teacher, the negative attachment relationship, melancholy, uneasiness etc - had a negative influence on the school resilience of GGFAs. The protective factors - the supporss etteacher, self-esteem etc - had a positive influence on the school resilience of GGFAs. The protective factors were found to reduce the negative influence on the school resilience of GGFAs.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.28 no.5C
• /
• pp.493-505
• /
• 2003

A new inter-client synchronization framework for multicast media streaming is proposed employing a server-client coordinated adaptive playout control. The proposed adaptive player controls the playback speed of audio and video by adopting the time-scale modification of audio. Based on the overall synchronization status as well as the buffer occupancy level, the playout speed of each client is manipulated within a perceptually tolerable range. Additionally, the server implicitly helps increasing the time available for retransmission while the clients perform an interactive error recovery mechanism with the assistance of playout control. The network-simulator based simulations show that the proposed framework can reduce the playout discontinuity without degrading the media quality, and thus mitigate the client heterogeneity.

• Journal of Digital Convergence
• /
• v.17 no.12
• /
• pp.413-425
• /
• 2019

This study was conducted to identify factors affecting depression in junior nursing students(JNS). The number of the participants was 144 at a college in S and G city. The data were collected using questionnaires about somatic symptoms(SS), sleep quality, stress, adaptation to college life(AC), depression. Mean score of depression was 18.89, 58.3% are experiencing depression that requires clinical treatment. The significant predictors of JNS were levels of depression AC(β=-.503, p=.000) and SS(β=.263, p=.000) respectively, explaining 58.9% of variance. In order to control the depressive symptoms of JNS, it is necessary to diagnose basic learning ability from the beginning of admission and provide guidance management plans to help students adapt to academic activities by providing customized programs for each level to improve learning ability. It is necessary to develop and apply various intervention programs to alleviate physical symptoms such as fatigue/low energy experienced by JNS.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.36 no.5C
• /
• pp.265-275
• /
• 2011

In this paper, we propose a Multi-Strata Space Time Code(MSSTC) for MIMO retransmissions. Since MSSTC is constructed by superimposing two OSTBC matrices, there are no intra-stratum interferences, but there exist inter-strata interferences. In MIMO retransmission environment, the transmitter switches adaptively the phases of strata at each transmission by using 1-bit feedback sent from the receiver in order to reduce the inter-strata interferences efficiently. We also propose a power allocation scheme between strata to improve error performance. Simulation results show that the proposed scheme achieves better performance than other conventional schemes.

• The Journal of the Convergence on Culture Technology
• /
• v.7 no.3
• /
• pp.255-260
• /
• 2021

This study tried to investigate the effects of the adaptation of middle-aged and elderly adult learners to college life on happiness. For this purpose, a questionnaire survey and analysis were conducted on 321 middle-aged and older adults studying at two-year and four-year colleges in Daegu and Gyeongbuk Province, and the results are as follows. First, college life adaptation according to the general characteristics of middle-aged and elderly learners are higher for those in their 50s and 2nd grade in good health condition. Happiness was the highest women, 60s and those in the form of households where only couples live. Second, there is a static correlation between the adaptation of middle-aged and elderly adult learners to college life and happiness, and the correlation between satisfaction with internal growth and satisfaction with meaning was the highest. Third, it was found that middle-aged and elderly adults' adaptation to college life influenced happiness, and the adaptation to adult student relationships, which is the lower part of the adaptation to college life, had the greatest impact on happiness. The above research results suggest that the various positive experiences experienced in university life can affect happiness by easing student relationships, psychological stability, and physical tension, and improving one's own satisfaction with internal growth.

• The Journal of the Convergence on Culture Technology
• /
• v.9 no.6
• /
• pp.201-208
• /
• 2023

This study is a empirical study to investigate the mediating effect of self-efficacy and social support in the relationship between SNS use time and acculturation stress for Chinese students. A survey was conducted from April 1 to 12, 2022 on 239 Chinese students from universities across the country using Wenjuanxing questionnaires. Descriptive statistics analysis and Baron and Kenny hierarchical regression analysis were performed on the collected data using SPSS 26.0, and bootstrapping was performed to verify the mediating effect. As a result of the study, SNS use time had a significant effect on the self-efficacy and social support. The acculturation stress was significantly influenced by SNS use time, self-efficacy, and social support. SNS use time had a significant effect on acculturation stress, and self-efficacy and social support had a partial mediating effect in the relationship between SNS use time and acculturation stress. Therefore, based on the above research, SNS can be used to develop the projects for International students to enhance their cultural adaptative ability and thus alleviate the acculturation stress. This study can serve as the foundational and supplementary materials for the follow-up study of SNS and acculturation stress.

• Journal of Digital Convergence
• /
• v.17 no.5
• /
• pp.225-233
• /
• 2019

The purpose of this study was to investigate state-anxiety, dyadic adjustment and pregnancy stress in pregnant women and to identify factors influencing pregnancy stress. Data were collected 158 pregnant women. Data were analyzed using t-test, ANOVA, Scheffe's test, Pearson's correlation coefficient, stepwise regression analysis. There was statistically significant difference in state-anxiety on variable such as age. There were statistically significant difference in dyadic adjustment on variables such as education, religion, income. There was not statistically significant difference in pregnancy stress on variables. Pregnancy stress was positively correlated with state-anxiety. Pregnancy stress was negatively correlated with dyadic adjustment. State-anxiety was negatively correlated with dyadic adjustment. Factor influencing pregnancy stress was state-anxiety, which explained 25.1%. Findings provide useful information for further studies in pregnancy stress of pregnant women. Therefore, to reduce pregnancy stress of pregnant women, it is necessary to standardized nursing intervention program.

• Korean Journal of Social Welfare Studies
• /
• v.41 no.4
• /
• pp.189-224
• /
• 2010

Nowadays Korean society has a fast growing population of North Korean immigrant youth. Especially, North Korean immigrant youth, who are discontinuing formal education, experience difficulties in social exclusion and adaptation. Therefore, the purpose of this study was to understand the experiences of adaptation and social support of North Korean immigrant youth discontinuing formal education, and to seek affirmative supporting plans and solutions for their adaptation. The methodology utilized for this study was a case study research. On the basis of the results and categorization, 'a network between overall categories and of early adaptation' was derived. The major findings of this study are summarized as follows. First, the participants of this study experienced major difficulties during 'economical adaptation', and their economical adaptation was strongly interrelated with their 'educational adaptation'. The discontinuing of their education resulting from their fleeing period caused 'academic differential and age disparity.' Thus they could not enroll in the formal education system, and their insufficient educational background resulted in low wages and overwork due to manual labor jobs. Second, participants recognized 'interpersonal relations' as the most essential factor in adaptation, and 'social support' from the interpersonal relations played an important role in adaptation to and comfort in Korean society. 'Interactions with South Koreans' was recognized as a significant resource for gaining informational and appraisal support, but was not activated satisfactorily. On the other hand, interaction with North Korean immigrants was avoided by the reason that 'there's nothing to learn', however emotional support from North Korean immigrants of close relationship played an important role in participants' adaptation, especially in all aspects of psychological adaptation. Third, participants experienced a lot of difficulties and stresses in their 'physical health and psychological adaptation'. Their chronic diseases worsened by remaining untreated, and female perceived symptoms were observed more often than in male. Meanwhile, excessive 'stresses' from the unfamiliar environment of South Korea negatively affected their psychological adaptation. However, they were satisfied with sense of liberty and security from living in a democratic society.

• Korean Journal of Social Welfare
• /
• v.67 no.3
• /
• pp.5-29
• /
• 2015

Using meta-analysis, this study aims to examine individual, familial, and social support variables in relation to acculturative stress by in order to draw implications for social welfare practice and policy. For the purpose of this study, authors selected 37 studies between 2000 and 2013. Results are as follows: First, acculturative stress of marriage-based migrant women showed statistically significant average effect size in individual, familial, and social support variables. Second, each variable showed at least 'medium' and above size. Further, marital satisfaction and social support showed 'large effect size' and life satisfaction, family relations and functions, self-esteem, psychological well-being, and depression showed 'near large effect size.' Third, when moderating effect was examined, Korean language proficiency, economic difficulty, depression, and self-esteem among individual variables showed differences in effect size according to socio-economic variables. Meanwhile, marital satisfaction and couple relationship among familial variables and social support among social variables showed differences in effect size according to socio-economic variables. Based on these results, authors suggested ways to prevent or reduce acculturative stress among marriage-based migrant women in Korea.