• 한국심리학회지:학교
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• 제18권2호
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• pp.249-267
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• 2021

본 연구는 중학생의 또래괴롭힘 피해에 초점을 맞추어 개인수준에서 그 위험요인(사회적 위축)과 발달적 결과(우울)를 확인하고, 학급수준의 차별 효과를 살펴보기 위해 다층경로분석을 실시하였다. 구체적으로, 개인수준에서 중학생의 사회적 위축과 우울간의 관계에서 또래괴롭힘 피해의 매개효과를 확인하고, 나아가 또래괴롭힘 피해경험에 개인수준의 사회적 위축과 학급수준의 차별 간 층간 상호작용 효과가 발생하는지 확인하였다. 이를 위해 7개 중학교, 86학급에서 수집된 1,116명의 자기보고식 설문자료를 분석에 사용하였다. 그 결과, 개인수준에서 사회적 위축, 또래괴롭힘 피해, 우울 간의 부분매개효과가 유의하게 나타났고, 학급수준에서 차별은 또래괴롭힘 피해를 정적으로 예측하였다. 또한 사회적 위축과 차별의 층간 상호 작용 효과가 유의하게 나타나, 사회적으로 위축된 학생이 높은 수준의 차별이 발생하는 학급에 속할수록 또래괴롭힘 피해를 더 많이 경험한다는 것을 밝혔다. 이러한 결과는 개인수준의 취약성이 항상 또래괴롭힘 피해를 예측하는 것이 아니고, 맥락과 상호작용한다는 것을 보여주며, 결과적으로 또래괴롭힘 피해를 이해하기 위해 개인특성 뿐 아니라 학급의 맥락적 특성을 함께 고려해야 함을 강조한다. 마지막으로 연구 결과를 중심으로 효과적 개입전략에 대해 논의하였다.

• 한국통신학회논문지
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• 제38C권3호
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• pp.233-238
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• 2013

본 논문에서는 스마트폰의 중독에 따른 금단 현상을 정량적으로 제시하고자 20대 남성을 대상으로 음성 분석을 수행하였다. 이를 위해 20대 남성 20명을 대상으로 일정 시간 스마트폰을 회수하고 실험 기간 전과 후의 음성을 수집하여 이를 기반으로 스마트폰 중독에 따른 금단 현상을 연구하였다. 스마트폰 중독에 의한 금단 현상에 따른 음성 분석 연구에 적용한 기술 요소로는 정신적 불안감을 분석하는데 사용하는 음성 분석 요소인 피치 및 강도를 측정하는 실험을 수행하였다. 실험 결과 피실험자 중 90%가 피치 분석값이 증가하였으며 95%가 강도 분석값이 감소하는 결과를 나타냈다. 끝으로 통계 분석을 통해 추출된 실험 결과 자료들의 통계적 유의성을 분석하였다.

• Child Health Nursing Research
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• 제23권3호
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• pp.364-374
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• 2017

Purpose: The purpose of this study was to describe feelings and actions of nurses following withdrawal of life-sustaining treatment from children being cared for by the nurses. Methods: Data were collected by in-depth interviews with 7 nurses from different hospitals where children receiving nursing care had life-sustaining treatment withdrawn. The interviews were conducted from August 2016 to February 2017 when all data were saturated. Interviews lasted 30~90 minutes and were conducted 2~3 times per participant. Data were analyzed using Giorgi's phenomenological research methodology. Results: The following factors constituted experiences of nurses working in pediatric wards when life-sustaining treatment was withdrawn from children: "agony and conflict in the aspects of care", "heavy mind and regret for exhausting care", "intentionally avoiding parents' sadness", "comforting sadness in the heart" and "orientation in the role of caring for children undergoing withdrawal of life-sustaining treatment." Conclusion: Findings indicate that support systems and intervention programs need to be developed so that nurses can understand and wisely deal with experiences of withdrawal of life-sustaining treatment from children who receive care from nurses.

• 지역사회간호학회지
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• 제28권3호
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• pp.291-301
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• 2017

Purpose: This study aims to investigate the relationships between knowledge on advance directive, attitudes towards the withdrawal of life-sustaining treatment and quality of life among hemodialysis patients. Methods: A descriptive correlational study was conducted with 103 hemodialysis patients. Data were collected using a structured questionnaire from May to September of 2016, and analysed by using descriptive statistics, t-test, ANOVA and Pearson correlation coefficient. Results: The participants' knowledge level on advance directive was $5.47{\pm}2.08$ out of 9, the attitudes towards the withdrawal of life-sustaining treatment was $3.22{\pm}0.49$ out of 5, and the quality of life was $3.35{\pm}0.92$ out of 6. The knowledge on advance directive was positively correlated with attitudes towards the withdrawal of life-sustaining treatment (r=.21, p=.037) and quality of life (r=.21, p=.036). Conclusion: According to the results of this study, the level of knowledge on advance directive is preferred to improve the quality of life of hemodialysis patients. It is needed to support and maintain ongoing education opportunities in order to improve the level of knowledge on advance directive among patients undergoing hemodialysis.

• Human Ecology Research
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• 제51권5호
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• pp.473-481
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• 2013

The purpose of this study was to investigate the moderating effects of a size of the friendship network and quality of friendship on the associations between mutual antipathy and maladjustment. The subjects were 678 fifth- and sixth-grade primary school children who were recruited from a public school in Bucheon City. The Peer Nomination Inventory was used to assess mutual antipathy, peer victimization, social withdrawal, aggression, and the friendship network. The children were given a classroom roster and asked to nominate up to three classmates who fit each description. Additionally, the children reported the quality of their friendships using the Friendship Quality Scale. Each child was asked to indicate his or her one best friend and rate how accurately a sentence describe done of their best friends on the scale. The results revealed that the friendship network and friendship quality significantly moderated the relationships between mutual antipathy and social withdrawal, and peer victimization. The magnitude of the association between mutual antipathy and social withdrawal was not significant for large friendship networks and high quality friendships. Although mutual antipathy was significantly associated with peer victimization, the association was stronger at lower levels than at higher levels of the friendship network and quality. However, there was no moderating effect of the friendship network and quality on the association between mutual antipathy and aggression. A large friendship network and high quality friendship could be protective factors among those who have mutual antipathy in peer groups.

• Toxicological Research
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• 제11권1호
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• pp.63-68
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• 1995

N-methyl-D-aspartate(NMDA) receptor has been well known as an important mediator of several forms of neural and behavioral plasticity. But different results were reported about the effect of MK-801 or dextromethorphan on opioid dependence. The present studies examined whether NMDA receptor antagonists can alter the opioid dependence and tolerance in rodents. Naloxone precipitated withdrawal symptoms and changes of locomotor activities were observed in MK-801 or dextromethorphan pretreated morphine-dependent rats. Tail-flick assay was used for morphine analgesia and tolerance was found after 4 day's consecutive injections (10 mg/kg, s.c., twice/day) of morphine in mice. Locomotor activity was increased and the withdrawal symptoms were decreased by the pretreatment of MK-801 in morphine-dependent rats. But 0.3 mg/kg i.p. of MK-801 intensified the body weight loss and produced severe ataxia and rotation although some withdrawal signs were attenuated. Morphine induced analgesic tolerance was inhibited by the pretreatment of MK-801 and dextromethorphan. Dextromethorphan was more potent than MK-801 in inhibiting the development of the analgesic tolerance in mice. These results suggest that NMDA system may be involved in opioid withdrawal and analgesic tolerance but appropriate caution should be requested when MK-801 is used in combination with opioid because of untoward neurologic signs.

• Clinical and Experimental Pediatrics
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• 제52권8호
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• pp.843-850
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• 2009

A recent High Court's decision regarding the withdrawal of life supporting medical treatment (artificial ventilator) from an elderly female patient in the terminal stage has opened up a new era of the "euthanasia dispute" in Korea. With this decision, the legitimate withdrawal of life supporting treatment became possible under certain conditions and the Korean Medical Association is working toward the establishment of practical guidelines for the terminal-stage patients. However, there are still very few debates on the cases of pediatric patients in the terminal stage or suffering from fatal diseases. For pediatric patients, the core principle of autonomy and following procedure of "advance directives" are hardly kept due to the immaturity of the patients themselves. Decisions for their lives usually are in the hands of the parents, which may often bring out tragic disputes around "child abuse", especially in Korea where parents have exclusive control of the destiny of their children. Some developed countries such as the U.S.A., the U.K. and Canada have already established guidelines or a legal framework for ensuring the rights of the healthcare system regarding children suffering from severe illness, permitting the withdrawal of Life supporting medical treatment (LSMT) in very specific conditions when the quality of life of the children is severely threatened. For the protection of the welfare and interest of the children, we should discuss this issue and develop guidelines for the daily practice of pediatricians.

• Food Science and Biotechnology
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• 제18권2호
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• pp.533-536
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• 2009

Withdrawal time of erythromycin in the cultured black rockfish (Sebastes schlegeli) was investigated to provide regulatory authority and fishery industry with full information needed to secure food safety of the fish treated with erythromycin. Medication was carried out using the experimental diet containing erythromycin of which concentration was 200 mg/kg diet and its daily dose was about 40 mg/kg body weight. The withdrawal time needed to reduce antibiotic contents around 10.0 mg/kg accumulated during 9 days medication below 0.2 mg/kg was identified about 10 days. The antibiotic with 13.7 mg/kg of fish on the $9^{th}$ days of medication was completely depleted after 30 days from stop of medication.

• Preventive Nutrition and Food Science
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• 제8권4호
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• pp.372-376
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• 2003

The efficacy of a medicinal herb tea (MHT) for assisting smoking cessation and for reducing withdrawal symptoms was evaluated by a placebo controlled subjective test in 100 male smokers. The MHT group experienced less craving for the taste of tobacco, and was more successful at quitting smoking. Among the subjects continuing to the final stage, 23 subjects (38.3 %) who took the MHT and 2 subjects (10.0 %) who took the placebo tea succeeded in quitting smoking. In the group taking MHT, urinary cotinine concentration increased during the first 2 weeks and then greatly decreased from weeks 2 to 4. The urinary cotinine concentration in the MHT group at week 0 was 38.6 mol/L but decreased to 24.5 mol/L by the end of week 4. MHT also reduced withdrawal symptoms, a frequent reason for failure in reducing or quitting smoking. The effects of the herbal tea on smoking cessation and withdrawal symptoms may be attributed to increased metabolism of nicotine and other effects of unidentified components of the herbal ingredients.

• 대한가정학회지
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• 제43권11호
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• pp.109-125
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• 2005

This study identified which aspects of perceived social support influence children's internalizing problems. The participants were 91 children from divorced families and 87 children from non-divorced families. They completed a questionnaire assessing the level of perceived social support and their teacher rated their internalizing problems(withdrawal, depression/anxiety) on K-CBCL scale. Sixth graders from non-divorced families perceived evaluative support higher than sixth graders from divorced families. In withdrawal, third graders from divorced families were rated higher than preschooler and sixth graders by their teacher. In depression/anxiety, third graders from divorced families were rated higher than sixth graders by their teacher. Internalizing problems of children from divorced families were affected by their perceived emotional support. Namely, children from divorced families who perceived less emotional support experienced more withdrawal and depression/anxiety.