• PNF and Movement
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• v.1 no.1
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• pp.43-57
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• 2003

목적: 병원치료가 필요하지 않을 만큼의 경부통증/증상과 관절가동범위, 경흉추의 다각적 면에서 관계를 조사하기 위해서이다. 방법: 연령은 19세에서 42세(평균연령 28세로 실험에 참여하기를 원하는 건강한 성인 40명을 대상으로 하였다. 경흉추의 척추 자세, 경추 능동 관절 가동범위, 경부 분절 길이 등의 다각적인 면을 측정하였다. 모든 측정들은 동일시에 각 대상자에게 서로 다른 측정자에 의해 두 번 실시되었다. 경부 근 지구력은 수정된 Biering-Sorensen 검사법에 의해 측정되었다. 마지막으로 대상자들에게 경부 통증/증상의 재발에 대한 질문을 하였다. 결과: 14명의 대상자들은 경미한 재발성 경부 통증/증상을 보고하였다. 경부 근 지구력 시간(F(1,38)=6.75, p=0.01)과 좌측 회전 가동 범위(F(1,38)=4.56, p=0.04)가 경부 통증을 가진 대상자들에서 유의하게 감소하였다. 신전 가동범위가 재 측정에서 특정군 변화 즉, 정상군 증가, 경부 통증/증상군 감소(F(1,38)=4.67, p=0.04)가 보였다. 경부 통증/증상군은 정상군과 비교 시 후인 가동 범위의 증가하였다(F(1,38) =4.56, p=0.04). 통증 유무에 관계없이 모든 대상자들에서 우측 회전보다 좌측 회전에서 가동범위가 더 크게 나타났고(F(1,38) =4.34, p=0.04), 반복 측정에서 좌측 측방굴곡 (F(1,38) =5.10, p=0.03)과 우측 측방 굴곡(F(1,38) = 5.27, p=0.03)의 감소가 나타났다. 결론: 경미한 증상의 경부통증 대상자군과 정상적인 대상자군을 비교할 때 그룹 간 차이는 경부 근 지구력 시간의 감소, 좌측 회전 가동 범위 감소와 특히, 두 번 째 측정에서 신전범위 감소가 나타났으나 후인의 가동범위는 증가로 관찰되었다. 이러한 결과들은 경부 통증의 발생과 관련된 초기 가동범위 변화를 제안한다.

• Korean Journal of Psychosomatic Medicine
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• v.20 no.1
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• pp.22-31
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• 2012

Objectives : We investigated the prevalence and functional impairment of premenstrual dysphoric disorder (PMDD) and premenstrual syndrome(PMS) in young women. Methods : A total of 1063 female college students were recruited from two urban areas(Seoul and Suwon) of Korea. Questionnaires for sociodemographic data and risk factors of PMDD, attitude about menstruation, and the Premenstrual Symptoms Screening Tool(PSST) were applied. Results : The prevalence of severe moderate to severe PMS and PMDD were 16.9% and 11.7%, respectively. There were differences in the alcohol and coffee consumption, severity of menstrual cramp, and family history of PMS among the moderate to severe PMS, PMDD, and no/mild PMS groups. Although some participants did not fulfill diagnostic criteria for PMDD, they showed significant functional impairment. Participants with negative attitude about menstruation reported premenstrual symptoms more frequently than those with positive or ambivalent attitude about menstruation. Conclusion : These results suggest that PMS and PMDD were prevalent and associated with functional impairment in young females. Some participants reported significant functional impairments although they did not meet the full DSM-IV diagnostic criteria for PMDD. Negative attitude about menstruation was associated with more premenstrual symptoms experiences.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.5
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• pp.46-55
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• 2012

This study proposes an estimate method of willingness to pay(WTP) for real-time route guidance systems using contingent valuation method(CVM) under double bounded dichotomous choice question(DBDCQ) and analysis for impact factors of WTP estimation. This study assumed that provided real-time traffic information service is optimal route concepts dealing with traffic conditions on origin-destination. Analysis targets were classified into two groups as short distance path and middle distance path for estimating WTP for realtime route guidance system in a year using the survival analysis method and the regression model with personal information, actual condition and satisfaction of information usage and users' awareness and usage of facilities. As a result, mean WTP of realtime route guidance system is 4,034won/year in short distance path, and 4,884won/year in middle distance path. Therefore real-time route guidance system for longer distance path is recognized as more valuable than shorter distance path. Moreover, the necessity of information was required on a higher income group and higher WTP was estimated on owners of vehicle group and lower awareness of a route group.

• Journal of The Korean Association of Information Education
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• v.18 no.2
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• pp.225-234
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• 2014

Robot programming allows students to plan an algorithm in order to solve a task, implement the algorithm, easily confirm the results of the implementation with a robot, and correct errors. Thus, robot programming is a problem solving process based on reflective thinking, and is closely related to students' metacognition. On this point, this research is conducted to develop a robot programming instructional model for tile enhancement of students' metacognition. The instructional processes of robot programming are divided into 5 stages (i.e., 'exploration of learning tasks', 'a teacher's modeling', 'preparation of a plan for task performance along with the visualization of the plan', 'task performance', and 'self-evaluation and self-reinforcement'), and core strategies of metacognition (i.e., planning, monitering, regulating, and evaluating) are suggested for students' activities in each stage. Also, in order to support students' programming activities and the use of metacognition, instructional strategies based on cognitive apprenticeship (i.e. modeling, coaching and scaffolding) are suggested in relation to the instructional model. In addition, in order to support students' metacognitive activities. the model is designed to use self-questioning, and questions that students can use at each stage of the model are presented.

• Environmental and Resource Economics Review
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• v.14 no.1
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• pp.25-50
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• 2005

This study estimates the willingness-to-pay (WTP) for avoiding the destruction of a first-grade ecological area by means of contingent valuation method. Specifically, we employ the dichotomous choice technique along with the follow-up questionnaires. Our analysis implies the yearly WTP per household for avoiding the destruction of the ecological area of 100,000 pyongs is 8,898 won with the 95% confidence interval of 6,611~11,976 won. We estimate the asset value of that area to be 1,707 billion won with the 95% confidence interval of 1,269 to 2,298 billion won. We also decompose the total value of the area into the value of direct (22%) and indirect (38.8%) use, the option value (19.9%) and the conservation value (21.3%). Although using these data for SEEA (the system of integrated environmental economic accounting) is bound by certain restrictions, one could employ our empirical findings as advisory information for decision making in the process of prior environmental review or for assessing the environmental impact.

• Sleep Medicine and Psychophysiology
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• v.20 no.2
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• pp.82-87
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• 2013

Objectives: Previous studies have reported an association between circadian preference and personality. Defense mechanism is unconscious ego process which deals with an individual's anxiety and is closely associated with one's personality. Our aim is to investigate the association between defense mechanism and circadian preference in medical students. Methods: One hundred forty eight medical students (70 males, 78 females), aged 22 to 30, answered the Beck Depression Inventory-II, Morningness-eveningness Questionnaire, and Korean version of Defense Style Questinnaire. Results: Consumption (beta=-0.262, p=0.001) and being a male (beta=0.175, p=0.031) were significant positive predictors of eveningness, while sublimation (beta=0.185, p=0.023) was a significant negative predictor of eveningness. Conclusion: Our study showed a relationship between specific defense mechanisms (i.e., consumption and sublimation) and eveningness in medical students, but it did not address whether the relationship is a causal one.

• Sleep Medicine and Psychophysiology
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• v.4 no.2
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• pp.156-163
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• 1997

Objectives : The authors investigated the practice of sleep hygiene and its effectiveness in general population who had experienced insomnia. If we find the items which be little practiced but especially effective, we would establish empirical an and theoretical basis to design the treatment program for insomnia, therefore apply it in clinical practice. Methods : The 226 subjects who had experienced insomnia, were at the age above 18 in Seoul, Korea. The questionnaire included the demographic data, the experience of insomnia, and the practices and effects of sleep hygiene instruction. The interview was administered face to face by the investigators. Results : The subjects reported that they practiced many of the sleep hygiene items related with arousal in sleep setting, and that those items were effective. The items such as 'get regular exercise each day(H)', 'take a hot bath(H)', 'concentrate on the pleasant feeling of relaxation(A)' were not usually practiced, but these items were reported very effective for sleep. Conclusion : The findings suggested that there were sleep hygiene items which should be educated and directed to practice actively in treatment program for insomniacs. Some items, which were especially reported low practice but highly effective, would be recommended to be studied about each therapeutic effectiveness in follow-up studies.

• Korean Journal of Child Education & Care
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• v.17 no.2
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• pp.75-98
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• 2017

The purpose of this study was to examine practice of strategies childcare teachers use in order to promote peer interaction among young children and difficulties in implementing strategies by using mixed methodology. The participants of current study were 155 inservice childcare teachers and they completed SIPPY questionnaire. To investigate strategy practice with difficulties, 44 teachers participated in theme writing and 3 teachers were interviewed. SIPPY data were analyzed by SPSS 20.0 and theme writing and interview transcripts were coded by qualitative analysis procedure. Results are as follows; First, teachers in this study use more environmental and naturalistic activity strategies than intensive strategies. Depending on educational experience and education level, there was a statistically significant difference. Second, participants reported various natural activity strategies that they use in the classroom such as compliments, modeling, suggestion, cooperative activity plan. Based on the analysis of qualitative data, four categories of difficulties were presented such as environmental component, disconnection with families, child individual characteristics, and teacher component. Implications were discussed in terms of teacher education and teacher driven professional development program.

• Journal of Gifted/Talented Education
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• v.25 no.6
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• pp.927-949
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• 2015

The purpose of this study was to find out the difference between importance and performance regarding perception of core competence of gifted education teachers through importance-performance analysis (IPA). One hundred fourteen elementary gifted education teachers including math and science participated in the study. The collected survey data was analyzed with IPA matrix. As the result, firstly, there was significant difference between importance and performance regarding perception of core competence of gifted education teachers. Secondly, core competencies of 'understanding knowledge', 'research and instruction', 'passion and motivation', and 'ethics' are high in both perceptions of importance and performance. However, both 'communication and practices' and 'professional curriculum development' are low. Thirdly, there was a difference in core competence of gifted education teachers between math and science at the competence of 'passion and motivation'. Math gifted education teachers perceived 'passion and motivation' high in both importance and performance while science gifted education teachers perceived its importance low and performance high. In addition, math gifted education teachers showed lower performance compared to its importance in the sub-categories; 'knowledge of gifted development', 'gifted child assessment', 'information gathering and its literacy', and 'creative answers to various questions'. However, science gifted education teachers showed lower performance compared to its importance in sub-categories; 'higher-order thinking skills in its subject', 'teaching methodology for self-directed learning', 'problem behavior of the gifted', and 'counseling the gifted'.

• Journal of Gifted/Talented Education
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• v.22 no.4
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• pp.823-840
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• 2012

The purpose of this study is to investigate trends of research in the area of gifted education in Korea. Research articles published in the Journal of Gifted/Talented Education from 2006 to the present, which totalled 422 articles, were analyzed. Also, articles in the area of gifted education published in other academic journals registered in Korea Research Foundation totalling 228 were analyzed. In addition, 131 doctoral dissertations on gifted education areas were investigated. The articles were analyzed in terms of their subjects, topics and research methods. The results show that most of the studies looked into elementary and high school students as subjects, and the most researched topics of the articles were program development and curriculum, identification, affective characteristics and cognition. The methodology of majority of the articles were quantitative methods. Implications and future research areas are discussed.