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조현철 대한사고개발학회 2020 사고개발 Vol.16 No.3
The purpose of this study is to validate a proposed model on children’s character structure. A questionnaire on 48 behaviors(traits) of children’s character was administered to 1,088 3 to 5 year old children selected in Jeonbook province. After a series of correlational and factor analyses 42 questions were selected for measuring multifaceted nature of child character. Then this questionnaire was administered to 1,210 3 to 5 year old children selected from 7 regions across the nation. A confirmative factor analysis of this nationwide data validated the model of child character’s 6 factors in 3 domains. The personal domain included child’s character traits refelcting “self” such as self-regulation, self-respect and self-understanding and “humanity” like faithfulness and morality. The social domain included behaviors reflecting “socialness” such as respect for others, agreableness, and leadership, and “pro-socialness” like sharing, caring, and cooperating. The communal domain included traits reflecting “community consciousness” such as respect for life and democratic awareness, and “acting for community” like keeping order and social responsibility. These factors’ high correlations with the factors of another child charater quetionnaire with the simmilar theory and subscales provided an evidence of concurrent validity. These results validate a multifaceted nature of child character and lay a ground for a standardized measure of children’s character with nationwide usage. 본 연구의 목적은 김점희, 조현철(2018)이 제안한 유아인성의 구조에 대하여, 전국적 표집을 대상으로 하는 경험적 자료로 타당화하는 일이다. 제시된 개념적 틀을 기초로 48개 유아인성요소를 반영하는 유아의 행동 혹은 특성의 목록을 만들고 이에 기반한 검사지를 개발하고, 이를 전북지역의 3~5세 유아 1,088명을 대상으로 실시하여 42문항의 유아종합인성검사를 제작하였다. 이 검사를 전국 7개 권역의 1,210명 3~5세 유아를 대상으로 실시하여 얻은 자료를 바탕으로, 구조방정식모형에 대한 확인적 요인분석을 실시하였다. 그 결과 개인과 타인 및 공동체에 대한 지향성을 반영하는, 자아와 성품, 사회성과 친사회성 및 공동체지향행동의식과 공동체지향행동의 6요인 구조에 대한 타당도를 확인할 수 있었다. 또한 별도로 표집한 220명 유아를 대상으로, 3-5세 유아용 인성척도(나은숙, 김경희, 2014)와의 상관관계를 통하여 공인타당도의 증거도 확인하였다. 이러한 결과는 유아인성이 가지는 다면성을 확인하는 것으로서, 추후 유아인성교육의 보다 충실한 전개를 위해 유용하게 사용할 수 있는 유아인성표준화검사의 개발을 전망하게 한다.
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조현철,송윤경,임형호 대한한의학회 2009 대한한의학회지 Vol.30 No.3
Background:Peripheral nerve injuries are a commonly encountered clinical problem and often result in a chronic pain and severe functional deficits. Objective:The aim of this study was to evaluate the effects of Gentianae Macrophyllae Radix (G. M. Radix) on the pain control and the recovery of the locomotor function that results from the sciatic crushed nerve injury in rats. Method:Using rats, we crushed their sciatic nerve, and then orally administered the aqueous extract of G. M. Radix. The effects of G. M. Radix on the recovery locomotor function were investigated by walking track analysis. The effects of G. M. Radix on pain control were investigated by brain-derived neurotrophic factor (BDNF) expression in the sciatic nerve, and c-Fos expression in the paraventricular nucleus (PVN) of the hypothalamus and in the ventrolateral periaqueductal gray (vlPAG). Result:G. M. RADIX facilitates motor function from the locomotor deficit, and thereby increased BDNF expression and suppressed painful stimuli in the PVN and vlPAG after sciatic crushed nerve injury. Conclusion:It is suggested that G. M. Radix might aid recovery locomotor function and control pain after sciatic crushed nerve injury. Further studies on identifying specific the component in G.M. Radix associated with enhanced neural activity in the peripheral nerve injury may be helpful to develop therapeutic strategies for the treatment of peripheral nerve injury. Background:Peripheral nerve injuries are a commonly encountered clinical problem and often result in a chronic pain and severe functional deficits. Objective:The aim of this study was to evaluate the effects of Gentianae Macrophyllae Radix (G. M. Radix) on the pain control and the recovery of the locomotor function that results from the sciatic crushed nerve injury in rats. Method:Using rats, we crushed their sciatic nerve, and then orally administered the aqueous extract of G. M. Radix. The effects of G. M. Radix on the recovery locomotor function were investigated by walking track analysis. The effects of G. M. Radix on pain control were investigated by brain-derived neurotrophic factor (BDNF) expression in the sciatic nerve, and c-Fos expression in the paraventricular nucleus (PVN) of the hypothalamus and in the ventrolateral periaqueductal gray (vlPAG). Result:G. M. RADIX facilitates motor function from the locomotor deficit, and thereby increased BDNF expression and suppressed painful stimuli in the PVN and vlPAG after sciatic crushed nerve injury. Conclusion:It is suggested that G. M. Radix might aid recovery locomotor function and control pain after sciatic crushed nerve injury. Further studies on identifying specific the component in G.M. Radix associated with enhanced neural activity in the peripheral nerve injury may be helpful to develop therapeutic strategies for the treatment of peripheral nerve injury.
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조현철,조영득,서연희 한국웰니스학회 2013 한국웰니스학회지 Vol.8 No.4
본 연구는 대학생의 운동참여가 웰니스(Wellness)인식에 미치는 영향을 파악하기위해 W대학에 재학중인??학생들을 모집단으로설정하여 총 550부의 설문을 배포하여 불성하게 응답하였다고 판단된 27부를 제외하 고 523부를 분석한 결과 다음과 같은 결론을얻었다. 첫째, 신체적 건강영역에 대하여 운동참여 빈도(β= -.017)가 영향을 미치는 것으로 나타났다. 둘째, 사회적 건강에 대하여운동참여 시간(β=-.261)가 영향을??미치는 것으로 나타났다. 셋째, 정신적 건강에 대하여 운동참여 빈도(β=-.159)와 운동참여 시간(β=.261)에 서 영향을 미치는 것으로 나타났다. 넷째, 지적건강영역에 대하여 운동참여 빈도(β=-.192)가 영향을 미치 는 것으로 나타났다. 다섯째, 정서적 건강영역에 대하여 운동참여 빈도(β=-.224)와 운동참여시간(β=-.195) 에서 영향을 미치는 것으로 나타났다. 이러한 연구결론을 바탕으로 대학생들에게 흡연, 음주, 불규칙한 식습관등 잘못된 생활 습관은 건강을 해 칠수 있으며 미래의 건전한 사회인으로 다양한 건강에 대한 교육정책 마련이 시급한 것으로 보여 진다.?? This study aimed to explore the effect of exercise participation on wellness awareness in university??Students. For the purpose,this study collected data from 550 students in W university and performed a??final data analyzed from 523 of those students. Followings are the result of this study. First, frequency of exercise participation have a significant??effect on physical wellness area(β=.017). Second, time of exercise participation have a significant??effect on social wellness(β=.261). Third, frequency(β=.159)and time(β=.261) of exercise participation??expose effect on mental wellness. Fourth, frequency of exercise participation have an impact on??intellectual wellness(β=.192). Fifth, frequency(β=.224) and time(β=.195) of exercise participation have??an impact on emotional wellness. This study suggests that university students need to be aware of??harm negative impact on the wellness due to such bad habits as smoking, drinking and irregular eating??habits. In addition, there is pressing need that a variety of health-related education policy should be??arranged to make university students future healthy members in society.
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유도 선수들의 ACE 유전자 다형성(Polymorphism)에 따른 유·무산소성 운동능력 및 등속성 근기능의 차이
조현철 대한무도학회 2012 대한무도학회지 Vol.14 No.3
The purpose of this study was to verify the difference aerobic and anaerobic capacity as well as isokinetic muscular functions according to a polymorphism of the angiotensin I-converting enzyme(ACE). This study was also investigated to provide better methods for athletic performance improving and elite athlete selecting of judo player. Total 69 healthy judo players were recruited in this study. Genotyping was performed by polymerase chain reaction and/or restriction fragment length polymorphism analysis. The athletes were categorized into 3 groups as II, ID, DD genotype groups based upon ACE I/D polymorphism(n=69; II=30, ID=26, DD=13). This groups were measured aerobic capacity testing, maximal incremental cycle ergometer testing, and maximal knee muscle strength measurements. Aerobic fitness indicated higher value in II genotype than ID or DD. However, anaerobic performance did not differ significantly between anaerobic fitness and the genotype. Isokinetic testing was significantly difference in right knee flexion peak torque, peak power and average power in DD genotype than II or ID. These findings suggest that aerobic capacity was probably affected by II genotype of ACE gene. In addition, anaerobic capacity indicated that DD genotype of ACE gene dominated over other genotype. However, there were no significant differences between ACE genotype. We need further studies for an accurate comparison of various event according to ACE I/D polymorphism. 본 연구는 유도 선수들의 경기력 향상과 엘리트 선수 선발을 위한 기초자료를 제시하기 위하여 유․무산소 운동능력 및 등속성 근기능에 대한 ACE 유전자 다형성과 차이를 검증하였다. 본 연구의 대상자는 Y대학에 재학 중인 대학 남자 유도 선수 69명으로 ACE의 유전자 다형성에 따라 총 3개 그룹(II타입 30명, ID타입 26명, DD타입 13명)으로 구분하였다. 측정항목으로는 유산소성 능력으로 최대산소섭취량, 환기량, 최대 심박수를 측정하였으며, 무산소성 파워로 최대파워, 평균파워, 피로지수를 측정하였다. 또한 등속성근기능은 양발의 최대근력, 최대파워, 평균파워를 측정하여 ACE 유전자 다형성에 따른 차이를 비교하였다. 유산소성 운동능력은 최대산소섭취량과 최대심박수에서 II타입이 ID와 DD타입에 비해 평균적으로 높은 결과를 나타내었지만 통계적으로 유의한 차이는 나타나지 않았으며, 환기량에서도 차이를 보이지 않았다. 무산소성 운동능력에서도 최대파워, 평균파워, 피로지수에서 DD형이 II와 ID형에 비해 평균적으로 높은 결과를 나타내었지만 통계적으로 유의한 차이는 나타나지 않았다. 등속성 근기능에서는 최대근력(peak torque)과 최대파워, 평균파워에서 DD형이 II와 ID형에 비해 평균적으로 높은 결과를 나타내었고, 그 중 오른쪽 슬관절 굴근 운동에서 통계적으로 유의한 차이(p<.05)가 나타났다. 따라서, 유도 선수들의 ACE 유전자 다형성 간에 유산소성 능력에서는 II형이, 무산소성 능력에서는 DD형이 대체로 우세하게 관여하는 것으로 나타났지만 3가지 다형성 간에는 유의한 차이가 나타나지 않았다. 앞으로의 연구에서는 세부적인 평가를 위해 다양한 종목과 체급별 분석, 유전형별에 따른 트레이닝의 접목 등 다각적인 연구가 이루어져야 할 것으로 생각된다.
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Modeling Vulnerability Discovery Process in Major Cryptocurrencies
조현철,이주영 한국멀티미디어학회 2022 The journal of multimedia information system Vol.9 No.3
These days, businesses, in both online and offline, have started accepting cryptocurrencies as payment methods. Even in countries like El Salvador, cryptocurrencies are recognized as fiat currencies. Meanwhile, publicly known, but not patched software vulnerabilities are security threats to not only software users but also to our society in general. As the status of cryptocurrencies has gradually increased, the impact of security vulnerabilities related to cryptocurrencies on our society has increased as well. In this paper, we first analyze vulnerabilities from the two major cryptocurrency vendors of Bitcoin and Ethereum in a quantitative manner with the respect to the CVSS, to see how the vulnerabilities are roughly structured in those systems. Then we introduce a modified AML vulnerability discovery model for the vulnerability datasets from the two vendors, after showing the original AML dose not accurately represent the vulnerability discovery trends on the datasets. The analysis shows that the modified model performs better than the original AML model for the vulnerability datasets from the major cryptocurrencies.
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