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어머니 양육스트레스가 유아의 친사회적 행동에 미치는 영향: 어머니의 정서 사회화와 유아의 의도적 통제의 매개효과
김승은(Seung Eun Kim),이운경(Woon Kyung Lee) 한국아동학회 2024 아동학회지 Vol.45 No.2
Objectives: As infants spend extensive time in caregiving and educational institutions, there is a heightened emphasis on the significance of prosocial behavior in cultivating positive relationships. Consequently, this study explores the effects of mothers’ parenting stress on preschoolers prosocial behavior, with a focus on the mediating effect of mothers’ emotion socialization and preschoolers effortful control. Methods: A total of 215 mothers of children aged 3-5 years were included in this study. For data analysis, descriptive statistics and path analyses were conducted. Results: First, mothers’ parenting stress did not directly affect preschoolers’ prosocial behavior. Second, mothers’ parenting stress significantly affected preschoolers’ prosocial behavior, mediated by supportive emotion socialization. However, the unsupportive response of emotion socialization did not mediate the relationship between mothers’ parenting stress and preschoolers’ prosocial behavior. Third, mothers’ parenting stress significantly affected preschoolers’ prosocial behavior, mediated by preschoolers’ effortful control. Finally, the serial mediating effect of mothers’ parenting stress on preschoolers’ prosocial behavior, mediated by mothers’ emotion socialization and preschoolers’ effortful control, was significant. Conclusion: The results show that positive parenting aspects such as mothers’ supportive responses (rather than unsupportive responses) and preschoolers’ effortful control have an positive influence on preschoolers’ prosocial behavior. This finding underscores the necessity for targeted intervention programs to mitigate mothers’ parenting stress and enhancing supportive responses to improved prosocial behavior in preschoolers.
김승은 ( Seung Eun Kim ),류복현 ( Pog Hyun Ryu ),강추원 ( Choo Won Kang ),고진석 ( Chin Surk Ko ) 대한화약발파공학회 2010 화약발파 Vol.28 No.2
도심지 부근에서 이루어지는 암반 굴착작업의 증가에 따라 민원제기가 급증하고 있다. 이로 인해 발파설계시 안정성을 가장 우선적으로 고려하며, 그중에서도 지반진동을 제어하기 위한 노력이 필요하다. 본 연구에서는 발파진동의 전파특성을 결정하는 여러 인자들 중 발파조건인 기폭방법과 폭약의 종류에 따른 지반진동의 전파 특성을 알아보았다. 지반진동은 폭속이 작은 폭약에서 더 크게 나타났지만 진폭의 감쇠가 커서 진동이 멀리 전파되지 않는 특징이 나타났다. 기폭위치별 회귀분석 결과 중간기폭이 평균적인 진동수준이 가장 크게 나타났지만 감쇠가 커서 진동이 멀리 전파되지 않았다. 역기폭은 중간기폭보다 진동 수준은 낮았으나 감쇠가 작아서 진동이 멀리 전파하는 특징이 나타났다. Excavations by blasting in urban area have caused lots of complaints. Hence, special attentions need to be paid to controlling the ground vibrations in designing blasting for those areas. In this study, among the various parameters that can affect the propagation characteristics of ground vibrations, the effect of the priming location of explosive on the ground vibration level was studied for two types of emulsion explosives that had different detonation velocities. Three priming locations of top, middle, and bottom were considered in a charged hole. In the experiment on the effect of detonation velocity, the ground vibration caused by the explosive with a lower detonation velocity showed larger attenuation in the amplitude. The priming locations also affected the ground vibrations levels. The ground vibration level produced from middle priming was found to be larger than the other priming methods under the same blast conditions, but the attenuation of amplitude was also larger in this case. In contrast, the ground vibration level from bottom priming was not larger than the middle priming, but the attenuation was smaller so that the ground vibration was detected at a longer distance.