• Journal of Convergence for Information Technology
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• v.9 no.10
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• pp.133-143
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• 2019

The purpose of this paper was to analyze the differences in executive function according to type of early English learning experience. The subjects were 75 5-years-old who had immersive early English learning in language school, and daycare center. The measurement tools were stroop, DCCST, memorize numbers, pattern fluency, and maze. We conducted covariance analysis with total intelligence as the covariates. In the results, there were significant differences in attention control and cognitive flexibility, but weren't significant differences in information processing and goal setting according to type of early English learning experience. This study suggests that experience of immersive early English learning positively affected attention control and cognitive flexibility, and didn't affect information processing and goal setting.

• The Journal of Korean Physical Therapy
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• v.11 no.3
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• pp.71-79
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• 1999

본 연구의 목적은 균형 훈련이 중추신경계 손상자들의 자세 조절 및 중추감각신경전도로에 미치는 영향을 규명하는데 있다. 연구대상자는 중추신경계 손상자로써 실험군 10명, 통제군 10명 등 총 20명을 선정하였으며, 실험군은 본 연구의 훈련 프로그램에 따라 12주간 force platform을 이용하여 균형훈련을 실시토록하였다. 자세조절 변인의 측정은 운동처치 전, 처치 후 8주 및 12주 후에 대상자들의 동적 및 정적 자세에서의 흔들림을 Dynamic Balance System을 이용하여 측정하였고, 체성감각 유발전위의 말초신경 근위부 유발전위$(N_9)$ 잠복기, 척수 유발전위$(N_{13})$ 잠복기, 뇌 유발전위 $(N_{20})$ 잠복기는 Neurotec을 이용하여 측정 분석한 결과 다음과 같은 결론을 얻었다. 1. 정적 자세 조절 요인의 경우, 좌우 흔들림과 전후 흔들림은 실험군에서 8주 후부터 유의하게 (p<.05) 감소하였고, 실험군이 통제군에 비해 운동처치 8주 및 12주 후에 각각 유의하게(P<.05, P<.01) 흔들림이 감소하였다. 2. 전후 이동면과 전후 기울기면에서 동적 자세 조절의 변화는 전후 이동면에서 좌우 흔들림과 전후 흔들림은 실험군에서 8주 후부터 유의하게 (P<.05) 감소하였으며, 실험군이 통제군에 비해 운동처치 8주 및 12주 후에 각각 유의하게 (P<.05, p<.01) 흔들림이 감소하였다. 3. 체성감각 유발전위의 잠복기 변화는 실험군과 통제군에 있어서 말초신경 근위부 유발전위$(N_9)$ 잠복기와 척수 유발전위$(N_{13})$ 잠복기가 다소 증가하였으나 유의한 차이는 나타나지 않았으며, 실험군에 있어서 뇌 유발전위 $(N_{20})$ 잠복기는 8주 후부터 유의하게 (P<.05) 증가하였다. 이상의 결과를 종합해 볼 때, 12주의 균형 훈련은 자세 조절에 있어서 전후와 좌우의 흔들림을 감소시킴으로써 정적인 상태나 동적인 상태에서의 자세 안정성을 증가시킬 수 있음을 시사하고 있다. 이는 자세 조절에 필요한 항중력근의 긴장성 수축을 유발시킬 뿐만 아니라 근육 긴장분포를 조절할 수 있다는 것으로 신경근 조절 기능의 향상을 의미하는 것으로 사료된다. 또한 뇌 유발전위 $(N_{20})$ 잠복기의 증가는 중추신경계의 감각기능의 신경학적 회복을 의미하는 것으로 중추신경계의 감각 운동통합에도 영향을 미쳐 운동기능의 향상을 기대할 수 이을 것으로 사료된다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.34 no.5
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• pp.107-116
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• 2006

This paper deals with a development of night vision imaging system(NVIS) for the KO-1 aircraft. In the modern combat, NVIS has a tendency to be applied for night peculiar mission and pilot mission maximization. KO-1 aircraft, which was the first domestic applied NVIS, is forward air control acquired information of day/night enemy(foe) site and moving of enemy for low altitude flight. We have successfully finished a developmental requirement/criterion, development of system, and construction of test and evaluation through development of NVIS for the KO-1 aircraft. KO-1 aircraft is acquired timely initial operational capability.

• Proceedings of the KAIS Fall Conference
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• 2010.11b
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• pp.751-754
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• 2010

본 연구는 초등학교 5, 6학년 학생들을 대상으로 인터넷 게임중독과 자아통제, 충동성과의 관계를 파악하여 올바른 인터넷 사용 문화를 장려하고, 과도한 인터넷 사용 방지교육을 위한 기초자료를 제공하고자 시도되었다. 자료는 2009년 11월 9일에서 11월 30일까지 익산시내 3개 초등학교를 임의로 선정하여 5, 6학년 학생 927명을 대상으로 조사하였다. 자료 분석은 SPSS WIN(12.0 한글판) 프로그램을 이용하여 카이제곱검정, t-검정, 일원배치 분산분석, 다중회귀분석의 통계적 방법을 이용하였다. 본 연구의 결과로는 대상자의 인터넷 게임중독 정도는 '정상' 483명(54.3%), '중독초기' 363명(40.8%), '중독중증' 43명(4.8%)으로 나타났다. 일반적 특성에 따른 인터넷 게임중독 정도를 분석한 결과 성별(p<0.01)이 유의한 차이가 있었으며 컴퓨터 사용 특성에 따른 인터넷 게임중독 정도는 이용장소(p<0.05), 주요활동(p<0.01), 평일 이용시간(p<0.01), 주말 이용시간(p<0.01)이 유의한 차이가 있었다. 또한, 인터넷 게임중독과 자아통제와의 관계를 분석한 결과 인터넷 게임중독 경향이 높을수록 자아통제 점수가 낮으며, 자아통제 점수가 높을수록 인터넷 게임중독 경향이 낮은 것으로 조사되었으며(p<0.01) 인터넷 게임중독과 충동성과의 관계를 분석한 결과 인터넷 게임중독 경향이 높을수록 충동성 점수가 높은 것으로 조사 되었는데, 이는 충동성 점수가 낮을수록 인터넷 게임중독 경향이 낮음을 의미한다(p<0.01). 자아통제와 충동성과의 관계를 분석한 결과 자아통제가 낮을수록 충동성이 높으며, 자아통제가 높을수록 충동성이 낮은 것으로 나타나서 자아통제와 충동성은 서로 반대 개념인 것을 알 수 있었으며(p<0.01) 인터넷 게임중독과 자아통제, 충동성과의 다중회귀분석 결과 유의한 영향을 주는 변수는 성별(p<0.01), 학교성적(p<0.01), 주요활동(p<0.01), 평일 이용시간(p<0.01), 주말 이용시간(p<0.01), 자아통제(p<0.01), 충동성(p<0.01)이었다. 여학생보다 남학생이, 학교성적이 높을수록, 주요활동이 비학습관련인 경우, 평일 이용시간이 1시간이상 이용할수록, 주말 이용시간이 2시간이상 많이 이용할수록, 자아통제가 낮을수록, 충동성이 높을수록, 인터넷 게임중독 경향이 높은 것으로 나타났다. 이상의 결과를 종합해 보면, 인터넷 게임중독 경향이 높을수록 자아통제 정도가 낮게, 충동성 정도는 높게 나타나고, 인터넷 게임중독 경향이 낮을수록 자아통제 정도가 높게, 충동성 정도는 낮게 나타나는 것을 알 수 있다. 또한 자아통제와 충동성은 상반된 개념으로 자아통제 정도가 높을수록 충동성은 낮아지고 자아통제 정도가 낮을수록 충동성이 높아짐을 알 수 있다.

• Journal of The Korean Association of Information Education
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• v.21 no.2
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• pp.247-257
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• 2017

The aims of this study are to analyse how smartphone affects (1)self-control and (2)self-directed learning ability of middle-school students, and also affect (3)self-directed learning ability by mediation of self-control. For these aims, this study used Seoul Educational Longitudinal Study panel data which was conducted in 2015, and conducted multi-group comparisons using structural equation modeling analyses. In analysis of smartphone effects, the use of smartphone of students was divided into 'for entertainment' and 'for learning', and also their first time of smartphone use was considered(elementary vs. middle school). Results indicated that while 'smarphone use for entertainment' was related negatively with self-control and self-directed learning ability of students, 'smarphone use for learning' was related positively, regardless of when smartphone was first used. Also, while 'smarphone use for entertainment' was related negatively with self-directed learning ability by mediation of self-control, 'smarphone use for learning' was related positively.

• Proceedings of KOSOMES biannual meeting
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• 2005.05a
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• pp.195-208
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• 2005

The flag State is primarily responsible for implementing international maritime conventions(IMO conventions) and national laws and other standards as far as its own vessels are concerned, on the other hand the port State exercise its rights for the safety and marine environment under international law especially UNCLOS within port and territorial sea. In particular, the port State may take appropriate measures including detention of ships identified as sub-standard vessels which are considered as port State's supplementary role aiming for implementing international and national and regulations. But in the course of implementing port state control, international disputes may happen between port state, coastal state and flag state in spite of making all possible efforts to avoid these disputes. This paper aims to consider legal grounds on port state control(PSC) in international conventions and national laws concerned and deals with contradictions between international and national law arising from exercising PSC by port state control officers(PSCOs).

• International Area Studies Review
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• v.14 no.3
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• pp.339-362
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• 2010

This study empirically examined the effect of ownership on cross-border acquisition performance. This study analyzed 284 international acquisitions undertaken by Korean public companies between 1986 and 2008. This study showed that the ownership had a negative impact on cross-border acquisition performance. Furthermore, this study found that the interaction between the ownership and cultural distance had a negative impact on cross-border acquisition performance. This study also showed support that the interaction between the ownership and acquisition relatedness had a negative impact on cross-border acquisition performance. This study improved the understanding of roles of the ownership and complemented previous research on the relationship among cultural distance, acquisition relatedness, and cross-border acquisition performance.

• Journal of the Korea Society of Computer and Information
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• v.26 no.7
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• pp.103-108
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• 2021

In this paper, we an empirical study of the effects of control types on Tie strength and filed project performance of project participants in field project organization for Korean domestic construction industry. In the study, we try to tell what significant impact output control, process control and tie strength among field project participants have on field project performance and features unique to field project organization for Korean construction industry through empirical analysis. And the findings of the empirical analysis are that output control appeared to have significant impacts on tie strength among the participants and process control, and process control also appear to have significant impact on field project performance.

• Korean Journal of Cognitive Science
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• v.28 no.4
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• pp.245-265
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• 2017

Recently, studies on cognitive control revealed that the optimal level of control is determined on the basis of reward and cost. The value of reward can be subjective and therefore, the optimal control strength can vary accordingly. The inconsistent effect of aging on cognitive control can be the result of flexible adjustment of control signal strength made by the older subjects. In other words, the elderly people maintains the ability to set the optimal level of control, which is known as the function of the dorsal anterior cingulate cortex. On the other hand, the age-related decline in cognitive control is obvious in rule maintenance and inhibition, which has to do with the function of lateral prefrontal cortex. In this study, we had young and old adults perform go-no go task and compared the behavioral and neural results for different reward conditions. Both age groups showed the best performance and the largest ERN amplitude when the reward was most appealing to them. And there was no age effect in ERN amplitude even though older adults' d' and accuracy was inferior to younger participants. These findings suggest that the effect aging on different cognitive control processes can be asymmetric.

• The Journal of the Convergence on Culture Technology
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• v.8 no.4
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• pp.151-162
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• 2022

Recently, contests for college students have emerged as an important factor in employment through self-development, and parents' psychological control on college students can prevent the development of autonomy by suppressing decisions and expressions without helping their children become independent. Therefore, this study aims to find out how the parental psychological control perceived by college students affects the motivation to participate in the contest through self-determination. As a result of the study, first, it was found that the psychological control of separation anxiety of parental psychological control negatively affects only the competence among self-determination. Second, it was found that achievement-oriented parental psychological control had a negative effect on all factors of self-determination. Third, it was found that among self-determination factors, competence had a positive effect on pleasure, financial reward, and recognition of others, and a negative effect on a sense of accomplishment. Fourth, it was found that the relationship among self-determination factors had a positive effect on pleasure, financial compensation, and recognition of others. The results of this will be used as basic data to understand the motivation of college students to participate in the contest and the psychological control of their parents.