• Korean Journal of Human Ecology
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• v.23 no.6
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• pp.1071-1087
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• 2014

The purpose of this study was to examine children's self-regulation and their problem behavior according to family interaction types. The subjects were 227 children and their mothers, and 14 teachers in Jeonbuk. To obtain family interaction types, self-questionnaires of FACES III are given to mothers. Also, self-questionnaires of children's self-regulation and problem behavior were given to teachers. The data were analyzed by computing t-test, ANOVA, Duncan post test, and multiple liner regression. The results were as follows. First, There was a difference in the children's self regulation and problem behavior, but not in family cohesion and adaptability, according to the children's sex, age, and family variables. Second, it was found that there was a difference in self-regulation and problem behavior according to family interaction types. It showed that self-regulation was higher and problem behavior was lower in the most 'enmeshed' families in cohesion and the most 'chaotic' families in adaptability. Third, considering the relative strength of each variable on children's problem behavior, it was shown that children's sex and age had the greatest influence on problem behavior, followed by self-regulation and family's cohesion. In conclusion, it is suggested that the efforts to improve family cohesion as a psychological environment should be made in order to increase the children's self regulation and to decrease the children's problem behavior.

• Korean Journal of Child Studies
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• v.34 no.5
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• pp.99-114
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• 2013

This study examined the relationships between children's cool executive function(cool EF), hot executive function(hot EF) and self-regulation according to the developmental changes. Children aged 3-5 years (N = 104) participated in this study. The participants completed cool and hot EF tasks and teachers reported on the children's cognitive regulation, emotional regulation, and behavioral regulation by means of questionnaires. The results indicated that cool EF and hot EF had different developmental patterns according to different age groups. High levels of cool/hot EF predicted better abilities in terms of cognitive, emotional, and behavioral regulation respectively. The relationship between coo/hot EF and cognitive/behavioral regulation were moderated by age, except in the case of emotional regulation. This paper also offers a detailed discussion of results and recommendations for future studies.

• Human Ecology Research
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• v.52 no.5
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• pp.541-549
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• 2014

The purpose of this study was to analyze the effects of preschool children's behavioral and emotional regulation on their peer play behavior, focusing on gender differences. A total of 214 4- and 5-year-old children attending a child care center in South Korea participated in this study. The instruments used in this study were the Child Behavior Rating Scale, Emotion Regulation Checklist, and Penn Interactive Peer Play Scale. The collected data were analyzed using a Student's t -test, Pearson's partial correlation, and multiple regressions with the SPSS software ver. 16.0. The main results of this study are as follows: first, there was a significant gender difference in preschool children's behavioral regulation, emotional control, play interaction, and play disruption. However, there was no gender difference in preschool children's play disconnection. Second, preschool children's emotional control and behavioral regulation had positive effects on their play interaction irrespective of gender. Third, preschool children's emotional instability and emotional control had a positive influence on their play disruption irrespective of gender. Finally, the factors of behavioral regulation and emotional instability significantly predicted the boys' play disconnection, while for the girls, the significant predictor was emotional control. Further, implications for the use of early intervention targeting specific behavioral and emotional regulation problems have been discussed.

• BMB Reports
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• v.49 no.7
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• pp.388-393
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• 2016

Although brown adipose tissue is important with regard to energy balance, the molecular mechanism of brown adipocyte differentiation has not been extensively studied. Specifically, regulation factors at the level of protein modification are largely unknown. In this study, we examine the changes in the expression level of enzymes which are involved in protein lysine methylation during brown adipocyte differentiation. Several enzymes, in this case SUV420H2, PRDM9, MLL3 and JHDM1D, were found to be up-regulated. On the other hand, Set7/9 was significantly down-regulated. In the case of SUV420H2, the expression level increased sharply during brown adipocyte differentiation, whereas the expression of SUV420H2 was marginally enhanced during the white adipocyte differentiation. The knock-down of SUV420H2 caused the suppression of brown adipocyte differentiation, as compared to a scrambled control. These results suggest that SUV420H2, a methyltransferase, is involved in brown adipocyte differentiation, and that the methylation of protein lysine is important in brown adipocyte differentiation.

• Journal of Korean Society on Water Environment
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• v.25 no.6
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• pp.855-862
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• 2009

This paper pointed out major problems of land use regulation policy surrounding Paldang Lake as follows: (1) inefficient management system, (2) inconsistent administrative management, (3) illogical selection of regulated area, (4) contradictory present system, and (5) controversial discharge control. Several regulation laws for the land-use surrounding Paldang Lake caused confusion of application and inefficiency of management. Amendment of regulation laws made it possible that the regulated area was developed, which resulted in the deterioration of water quality. In addition, successive regulations without scientific implementation overexpanded regulated area and focus on the discharge concentration of contaminated sources stimulated development of small size sources. To overcome these problems, we suggested reestablishment of regulated area, differentiation of regulation amendments, and flexibility in the application of regulation. It is necessary to arrange regulated area based on the efficient land use management and scientific implementation and then to mitigate land use regulation under the sustainable development. For the flexible application of regulation, it is required to amend the rule in response to the change of environmental condition and development of environmental techniques.

• Korean Journal of Childcare and Education
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• v.14 no.5
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• pp.117-136
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• 2018

Objective: This study examined the mediating roles of preschoolers' self-regulation in the relationship between maternal parenting behaviors and preschoolers' excessive immersion in smartphones. Methods: A total of 268 mothers of preschoolers responded to questionnaires on three research variables. Data were analyzed by correlation analyses and regression analyses. Results: First, maternal warmth/encouragement was negatively related to preschoolers' excessive immersion in smartphones, while maternal overprotectiveness/permission and rejection/neglect were positively related to preschoolers' excessive immersion in smartphones. Second, maternal warmth/encouragement and limit setting were positively linked to preschoolers' self-regulation, but maternal overprotectiveness/permission and rejection/neglect were negatively linked to preschoolers' self-regulation. Third, preschoolers' self-regulation was negatively associated with their excessive immersion in smartphones. Finally, preschoolers' self-regulation fully mediated the relationship between maternal warmth/encouragement and preschoolers' excessive immersion in smartphones, and preschoolers' self-regulation partially mediated the relationship between maternal overprotectiveness/permission, rejection/neglect and preschoolers' excessive immersion in smartphones. Conclusion/Implications: The results of this study suggest that positive maternal parenting behaviors and preschoolers' effective self-regulation are important in order to decrease preschoolers' smartphone overuse. These findings provide empirical evidence to develop programs for prevention and intervention of preschoolers' smartphone addiction.

• Journal of Power Electronics
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• v.19 no.1
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• pp.158-167
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• 2019

This research comparatively studies three kinds of flux regulation methods, namely, stored capacitor discharge pulse (SCDP), constant current source pulse (CCSP), and quantitative flux regulation pulse (QFRP), which are used for hybrid permanent magnet (PM) axial field flux-switching memory machines (HPM-AFFSMMs). Through an analysis of the operation principle and the series hybrid PM flux regulation mechanism of the objective machine, the circuit topologies and flux regulation process of these flux regulation methods are addressed in detail. On the basis of a simulation, the flux regulation characteristics of the researched machine during the magnetization and demagnetization processes are comparatively evaluated. Then, machine performance, including back EMF, direct and quadrature axis inductances, and magnetization and demagnetization characteristics, is quantitatively investigated. Results show that the QFRP enables the HPM-AFFSMM to achieve a less harmonic component of back EMF by approximately 7.28% and 7.97% at the magnetization and demagnetization states, respectively, and a more complete magnetization process than the SCDP and CCSP.

• Child Health Nursing Research
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• v.27 no.1
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• pp.24-33
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• 2021

Purpose: This study aimed to evaluate the effects of a rational emotive behavior therapy (REBT)-based emotional regulation program for mothers of premature infants in the neonatal intensive care unit (NICU). Methods: The study utilized a nonequivalent control group pretest-posttest design. Seventeen mothers were recruited for the experimental group and 21 mothers for the control group. Data were collected from July 9, 2018, to Oct 12, 2018 from mothers of premature infants in the NICU regarding parental stress, state anxiety, depression, and maladaptive cognitive emotion regulation. The experimental group received eight sessions of the REBT-based emotional regulation program for 3~4 weeks, and the control group only received standard nursing care. Results: Significant differences were found between the two groups in maladaptive cognitive emotion regulation (Z=-3.88, p<.001), stress (Z=-2.76, p=.006), state anxiety (Z=-3.72, p<.001), and postpartum depression(Z=-2.62, p=.009) after the intervention in the experimental group. Conclusion: The REBT-based emotional regulation program for mothers of premature infants was effective for reducing maladaptive cognitive emotion regulation, stress, anxiety, and postpartum depression. Therefore, it may be necessary to provide an REBT-based emotional regulation program for mothers of premature infants in the NICU in clinical practice.

• International Area Studies Review
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• v.13 no.1
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• pp.445-464
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• 2009

Many countries in the world have regulated cross-border supply in basic telecommunications services based on GATS exception rule for telecommunications because of anti-competition behavior control, domestic consumer protection, tax levy, national security, etc. Korea partially regulates cross-border supply in telecommunications service through the WTO and the domestic law and regulation. However, WTO and FTA negotiations, cross-border supply regulation are strongly demanded to deregulation. Therefore, it is required to review the effectiveness of cross-border supply regulation to prepare the counter plan for that regulation. Thus, the major countries of the telecommunication services regulation regarding the cross-border supply are reviewed. In addition, it is retrieved some implications for Korean regulation policy by reviewing the actual regulation of many countries cases.

• Korean Journal of Child Studies
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• v.8 no.1
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• pp.1-14
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• 1987

The purpose of the present research was to study the self-regulation of the child during mother child interaction. That is. this study focused on how mothers regulated children's problem solving efforts before children began to function as independent agents capable of self-regulation. The emphasis was on the "regulation-by-others" that preceded "self-regulation". The subjects of this study were 30 mother-child dyads. The dyads were divided into 3 groups of 10 dyads each on the basis of the child's age (2, 3, and 4 years of age). The instrument used for this study was the "truck puzzle" devised by Wertsch, McNamee, Mclane and Budwig (1980). The problem solving task in this study required the dyad to make a puzzle in accordance with the model puzzle. The interaction of 30 mother-child dyads was observed and analyzed flH verbal and non-verbal behavior used by the mother to regulate the child's behavior. One-way ANOVA, Scheffe post hoc comparision and Spearman's rank-difference correlation were used for the statistical analysis of the data. The results revealed that there were significant age trends in regulation-by-others and self regulation in joint cognitive activity; that is, there were developmental transitions from regulation by-others to self-regulation in connection with crucial strategic behavior (looking at the model). Significant differences were found in mothers' interventions after children's gaze at the model in joint cognitive activity; that is, the mean proportion of mothers' intervention for the 2-year-old group was the highest and that of the 4-year-old group was the lowest. There were no significant age-related differences in mothers' use of referential perspectives in joint cognitive activity. Children's regulation- by-others increased and children's self-regulation decreased in proportion to mothers' use of referential perspectives.