• 제목/요약/키워드: Separation Behavior

검색결과 657건 처리시간 0.029초

취업모의 분리불안, 직업만족도 및 과보호적 양육행동이 유아의 분리불안에 미치는 영향 (The Effects of Working Mothers' Separation Anxiety, Job Satisfaction, and Overprotective Parenting Behavior on Preschoolers' Separation Anxiety)

  • 류정민;신나나
    • 한국보육지원학회지
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    • 제14권1호
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    • pp.1-20
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    • 2018
  • Objective: The purpose of this study was to examine the direct and indirect effects (through working mothers' overprotective parenting behavior) of working mothers' separation anxiety and job satisfaction on preschoolers' separation anxiety. Methods: A total of 251 working mothers with preschool-aged children participated in this study. Mothers completed a questionnaire concerning their separation anxiety, job satisfaction, overprotective parenting behavior, and preschoolers' separation anxiety. Data were analyzed using t-test, one-way ANOVAs, partial correlations and path analysis. Results: In terms of direct effects, working mothers' separation anxiety had a direct effect on preschoolers' separation anxiety. However, job satisfaction did not have a direct effect on preschoolers' separation anxiety. With respect to indirect effects, working mothers' separation anxiety indirectly influenced preschoolers' separation anxiety through their overprotective parenting behavior. However, mothers' job satisfaction did not have an indirect effect on preschoolers' separation anxiety. Conclusion/Implications: Findings from this study emphasize the importance of reducing mothers' separation anxiety in order to prevent preschoolers' separation anxiety.

가스팽창분리형 볼트 분리거동 해석 연구 (A Study of Interpretation of Separation Behavior in Gas Expansion Separation(GES) Bolt)

  • 이응조
    • 한국추진공학회지
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    • 제9권1호
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    • pp.27-34
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    • 2005
  • 본 논문은 기존 폭발볼트의 기능을 그대로 유지하면서 분리시 발생되는 파편 및 충격파의 악작용을 완벽히 제거할 수 있는 가스팽창분리형 볼트의 분리거동에 관한 연구이다. 가스팽창분리형 볼트는 분리화약을 사용하지 않고 압력카트리지의 압력만 이용하여 분리가 이루어지게 개발된 파이로 장치로써, 분리거동을 수치해석 함으로써 볼트의 설계인자를 최적화할 수 있었다. 수치해석 및 시험결과에서 노치는 쐐기형태를 가지며 내부 홈 깊이가 분리면과 일치하는 모델이 가장 좋은 분리현상이 나타났다. 본 연구에서 제시한 볼트 설계인자의 최적화 방법은 향후 다른 종류의 폭발볼트와 같은 파이로 장치 설계에 기초자료를 제공할 수 있다.

Behavioral responses to cow and calf separation: separation at 1 and 100 days after birth

  • Sarah E. Mac;Sabrina Lomax;Cameron E. F. Clark
    • Animal Bioscience
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    • 제36권5호
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    • pp.810-817
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    • 2023
  • Objective: The aim was to compare the behavioral response to full separation of cows and calves maintained together for 100 days or 24 h. Methods: Twelve Holstein-Friesian cow-calf pairs were enrolled into either treatment or industry groups (n = 6 cow-calf pairs/group). The treatment cows and calves were maintained on pasture together for 106±8.6 d and temporarily separated twice a day for milking. The Industry cows and their calves, were separated within 24 h postpartum. Triaxial accelerometer neck-mounted sensors were fitted to cows 3 weeks before separation to measure hourly rumination and activity. Before separation, cow and calf behavior was observed by scan sampling for 15 min. During the separation process, frequency of vocalizations and turn arounds were recorded. At separation, cows were moved to an observation pen where behavior was recorded for 3 d. A CCTV camera was used to record video footage of cows within the observation pens and behavior was documented from the videos in 15 min intervals across the 3 d. Results: Before separation, industry calves were more likely to be near their mother than Treatment calves. During the separation process, vocalization and turn around behavior was similar between groups. After full separation, treatment cows vocalized three times more than industry cows. However, the frequency of time spent close to barrier, standing, lying, walking, and eating were similar between industry and treatment cows. Treatment cows had greater rumination duration, and were more active, than industry cows. Conclusion: These findings suggest a similar behavioral response to full calf separation and greater occurrence of vocalizations, from cows maintained in a long-term, pasture-based, cow-calf rearing system when ompared to cows separated within 24 h. However, further work is required to assess the impact of full separation on calf behavior.

Effects of Competition between Phase Separation and Ester Interchange Reactions on the Phase Behavior in a Phase-Separated Immiscible Polyester Blend: Monte Carlo Simulation

  • Youk, Ji-Ho;Jo, Won-Ho
    • Fibers and Polymers
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    • 제2권2호
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    • pp.81-85
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    • 2001
  • The effects of rate of phase separation to ester interchange reactions and the repulsive pair interaction energy on the phase behavior in a phase-separated immiscible polyester blend are investigated using a Monte Carlo simulation method. The time evolution of structure factor and the degree of randomness are monitored as a function of homogenization time. When the phase separation is dominant over ester interchange reactions, the domain size slowly increases with homogenization time. However, when the pair interaction becomes less repulsive, the domain size does not significantly change with homogenization time. On the other hand, when ester interchange reactions are dominant over the phase separation, the homogenization proceeds without a change in the domain size. The higher the extent of phase separation, the lower the increasing rate of the DR. However, when the phase separation is sufficiently dominant, the effect of the extent of phase separation on the increasing rate of the degree of randomness become less significant.

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어머니와 유아의 분리불안과 어머니의 과보호적 양육행동이 유아의 또래유능성에 미치는 영향 (The Effects of Separation Anxiety of Mothers and Young Children, and Mothers' Overprotection on Young Children's Peer Competence)

  • 김미경;김연화;한세영
    • 대한가정학회지
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    • 제46권7호
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    • pp.71-84
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    • 2008
  • The purpose of this study is to analyse how the separation anxiety of mothers and children influences on the children's peer competence through mother's overprotection. The subjects of this study were 302 children and their mothers, three to five years old who attended at educare centers and kindergartens which were located in Cheongju city and Daejeon city. The results of this research were as follows: First, there were differences in the separation anxiety of mothers and children, maternal overprotective behavior, and children's peer competence according to the social demographic backgrounds. Second, the separation anxiety of mothers and children influenced on mother's sheltering behavior and babying behavior. Third, mothers' sheltering behavior mediated the relationship between mothers' and children's separation anxiety and children's prosocial behavior. It also appeared that mothers' babying behavior mediated the relationship between the separation anxiety of mothers and children and children's initiative.

Effect of Liquid Crystal Structures on olymerization-induced Phase Separation Behavior by Simultaneous Resistivity and Turbidity Measurement

  • Park, Su-Cheol;Lee, Sang-Sub;Hong, Jin-Who
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.886-889
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    • 2007
  • Photopolymerization and phase separation behavior during the PDLC formation process were investigated by simultaneous resistivity and turbidity measurement. Using this experimental method, we investigated the effect of liquid crystal structure on photopolymerization and phase separation behavior.

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부모와 별거하는 중국 조선족 아동의 생활환경과 적응문제 (Developmental Environment and Adjustment of Korean-Chinese Children Separated from Both Their Parents)

  • 조복희;이주연
    • 아동학회지
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    • 제26권4호
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    • pp.231-245
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    • 2005
  • Recruited from Korean-Chinese preschools and elementary schools in Shenyang and Harbin, China, 150 caregivers of Korean-Chinese children separated from their parents provided general information about the separation(reason and duration of parent-child separation, present location of parents, etc.). They also filled out information about children's responses as to when the children had been separated and about children's behavior problems(Behavior Rating Scale, Behar & Stringfield, 1974). Results showed that most of the children were cared-for by relatives. Caregivers reported that the separated children adjusted positively to parent-child separation and were not anxious about living with a caregiver. There were significant differences in children's behavior problems by duration of separation from mother and frequency of contact between parent and caregiver.

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가스팽창분리형 볼트 분리거동 해석 연구 (A Study of Interpretation of Separation Behavior in Gas Expansion Separation(GES) Bolt)

  • 김동진;이응조;강원규
    • 한국추진공학회:학술대회논문집
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    • 한국추진공학회 2004년도 제23회 추계학술대회 논문집
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    • pp.95-98
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    • 2004
  • 본 논문은 기존 폭발볼트의 기능을 그대로 유지하면서 분리시 발생되는 파편 및 충격파의 악작용을 완벽히 제거할 수 있는 GES 볼트의 분리거동에 관한 연구이다. GES 볼트는 압력카트리지의 압력을 이용하여 분리가 이루어지게 개발된 파이로 장치이다. 볼트 설계 시 고려된 설계인자의 최적화는 볼트의 분리거동을 해석함으로써 달성할 수 있었다. 또한 볼트 설계인자의 최적화 방법을 제시함으로써 향후 볼트와 같은 파이로 부품 설계에 기준을 제시하고자 한다.

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부모와 별거하는 중국 조선족 아동의 양육자에 대한 애착과 적응문제 (Attachment with Caregivers and Adjustment of Korean-Chinese Children Separated from Their Parents)

  • 조복희;이주연
    • 아동학회지
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    • 제27권4호
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    • pp.247-263
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    • 2006
  • Recruited from Korean-Chinese elementary schools in Shenyang and Harbin, China, 100 children living apart from their parents and experiencing non-maternal care provided information about the separation (reason and duration of parent-child separation, present location of parents, etc.), their adjustment to separation, and their perception of attachment with their caregivers. Results showed that although the separated children adjusted positively to parent-child separation in general, over 55% of them reported loneliness. Attachment with caregiver was the most significant influential variable on children's behavior problems. Duration of separation from father was related to children's hostility/aggression and hyperactivity/attention deficit problem, while duration of separation from mother influenced children's anxiety.

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부모의 원가족 분화수준과 자녀양육행동과의 관계 (Level of parental differentiation from family of origin : relationship to child-rearing behaviors)

  • 정문자;최난경
    • 아동학회지
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    • 제25권3호
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    • pp.87-99
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    • 2004
  • The subjects of this investigation were 393 fourth and fifth graders from two elementary schools in Seoul and parents of these children. The level of fathers' emotional separation from the family of origin was higher than that of mothers'. Mothers were more warm acceptant and rejective restrictive than fathers; fathers were more permissive neglectful than mothers. Both fathers and mothers were more rejective restrictive of girls than of boys. Mothers with high scores in emotional separation from family of origin were more warm acceptant to their children and less rejective restrictive than those with low scores. Fathers with high scores in emotional cut off from the family of origin were more permissive neglectful behavior of their children than fathers with low scores.

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