• 한국산림과학회지
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• 제104권1호
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• pp.111-116
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• 2015

본 연구의 목적은 임의효과(random effect)를 포함하는 혼합모형(mixed model)을 이용하여 흉고직경과 수고의 변화량을 평가하는데 있다. 강원도 굴참나무 임분을 대상으로 흉고직경과 수고를 조사하고 3년 후 동일 임분을 재조사하였다. 혼합모형에서 굴참나무의 흉고직경-수고 관계는 고정효과(fixed effect)이고 초기측정과 반복측정의 흉고직경과 수고 차이를 임의효과로 설정하였다. 임의효과에 따른 모형의 적합도를 검정하기 위하여 아카이케의 정보기준(akaike information criterion, AIC)을 참고하고 반복 측정에 따른 분산-공분산 행렬과 오차항을 산정하였다. 추정된 공분산은 -0.0291이고 오차항은 0.1007을 나타내었다. 분산-공분산 행렬을 이용한 임의효과가 포함된 모형의 AIC(=-215.5)는 고정효과를 고려한 모형의 AIC(=-154.4)에 비해 낮은 수치를 나타내었다. 이러한 결과는 범주형 자료의 임의효과가 모형 개발에 반영되는 결과인 것으로 조사되었다. 그러므로, 본 연구에서 적용된 혼합모형은 반복 측정 자료를 이용한 모형 개발에 활용이 가능한 것으로 판단된다.

• 한국산림과학회지
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• 제106권1호
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• pp.10-18
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• 2017

본 연구는 낙엽송림 벌채 후 동일 수종인 낙엽송을 재조림하여 지역별 조림목의 생장을 비교 및 분석함으로써 낙엽송 조림목의 초기 생장 특성을 구명하고자 수행되었다. 조사지는 영주, 김천, 춘천, 인제이고, 낙엽송 노지묘(1-1)를 3000 본 $ha^{-1}$ 밀도로 식재하였다. 2010년과 2013년에 조림지 토양 특성 분석과 2010년부터 2014년까지 낙엽송 조림목의 근원경과 수고를 측정하여 H/D율과 수간 재적을 계산하였다. 낙엽송 식재 후 3년의 시간이 경과한 다음 pH는 유의하게 증가하였고, 유효인산 농도는 유의하게 감소하였다. 낙엽송 조림목이 5~7년생일 때 근원경, 수고 및 수간 재적 모두 매년 춘천 조사지에서 유의하게 가장 높았으며, 영주 조사지에서 가장 낮았다. 이는 영주 조사지 내 토양 전질소, 유효인산, 유기물 농도가 다른 조사지보다 상대적으로 낮았기 때문으로 판단된다. 본 연구 결과로 낙엽송 조림지 내 토양 특성과 조림목의 생장과의 상관을 확인할 수 있었으며, 낙엽송 재조림을 위한 토양 양분 수준을 제시할 수 있을 것이다.

• 한국치위생학회지
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• 제17권2호
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• pp.271-281
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• 2017

Objectives: This study was conducted to promote the value of field practice courses by installing an efficient field practice program through understanding the relationship between career decision/ behavior and the pre-/post satisfaction of dental hygiene students in field practice. Methods: The subjects of the study were students in Gyeongnam and Busan majoring in dental hygiene, from which 218 questionnaires were obtained from 23 November 2015 to 30 July 2016. Results: In terms of career decision/ behavior, the post-satisfaction scores in ideas about their major, about whether it was helpful to selecting their speciality and positive impression of dental hygienists, interest and understanding in training course were significantly lower than the pre-satisfaction scores (p<0.05). Relationship between satisfaction in field training and career decision/ behavior following the field training, pre-/post-satisfaction on site-training content (r=0.371, p<0.01), pre-/post satisfaction in training instructions (r=0.267, p<0.01), and pre-/post-satisfaction in the training sites (r=0.436, p<0.01) were all proportionally correlated to the after-training career decision and behavior. Conclusions: It is necessary for training instructors to maintain close relationships with the students in field practice program courses. In advance, it is expected to promote students' satisfaction in field practice and serve as a starting point where students can build self-esteem as a future dental hygienist by positively influencing their career decisions and behaviors.

• 한국운동역학회지
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• 제13권3호
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• pp.151-162
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• 2003

The purpose of this study was to investigate the frequency of sports injury among Korean junior elite golf players. The survey was made through the questionnaire which consist of eight categories and 280 valid answers were used to perform frequency analysis. The results indicated that 197 out of 280 participants experienced golf injuries (30%: during a game, 70%: during a practice) and 70% of them also experienced injuries within a year. The frequency analysis for the site of injury has shown that back was the most vulnerable area for all players(33%), followed by the right wrist, left shoulder and elbow for male players. Among female players, left wrist was the second weak site of injury, followed by the right wrist, right thoracic spine, and left shoulder. A few of them also have shown abnormal symptoms of ruptured lumbar disk, scoliosis, and lordosis and these injuries might be caused by the lack of flexibility and the fatigue due to over-practice. High frequency of wrist injury also demonstrated that excessive chopping or punching shot and poor environmental course conditions may cause this injury to be common. Overall, lack of warm up time, lack of strength and flexibility, and excessive amount of practice were the major reasons of injury for the junior elite golfers in Korea. The study also proved that these young Korean golfers actually had more chances to be faced with the injury than average. Thus, it is necessary to develop systematic and scientific methods of training, and prevention, treatment of these injuries with medical professionals.

• 한국수학교육학회지시리즈A:수학교육
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• 제45권3호
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• pp.295-313
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• 2006

University teacher education programs have sought for ways of how to improve student teaching in order to supply mathematics teachers with practical theory to achieve the goals of the current educational reform in school mathematics. In this context, the purpose of this research is to investigate the effect of student teachers' teaching experience in the after-school mathematics programs and the ways of how to develop the after-school learning programs as an effective site for learning to teach based on the inquiry into student teachers' own teaching experience. For the purpose, data were collected through the interviews with the student teachers who had taught after-school mathematics class. In addition, data were collected through survey, class observation, and seminal meetings with the student teachers in order to supplement the findings from the interview analysis. Data analysis focused on the student teachers' experience with teaching in after-school mathematics classes, that is, what and how they had learned as teachers, what kinds of difficulties they encountered in their teaching and supports that they expect to improve their learning through teaching. The analysis shows that the teaching experience in the after-school programs had positively contributed to their development as future mathematics teachers. Specifically, the after-school programs provide the site for learning through teaching at the early stage of teacher education program. The after-school programs provided the students teachers for the opportunity to participate peripherally in educational practice of school. Through the participation, the student teachers developed positive attitudes toward teaching career and became to have more solid ideas about how to teach mathematics. Based on the analysis, this research provides following suggestions concerning how to improve student teaching. First, it is necessary to provide student teachers to participate into the practice of teaching at the early stage of teacher education programs. Second, it is important to give students teacher opportunity to participate in teaching at peripheral and legitimate positions. Finally, it is necessary to construct mentoring networks to support student teachers to move from a peripheral position toward a center of teaching practice.

• 한국간호교육학회지
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• 제30권1호
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• pp.29-38
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• 2024

Purpose: This study aimed to investigate student nurses' satisfaction by type of clinical practicum and to determine predictors of clinical competence in pediatric nursing. Methods: A total of 189 Junior and Senior student nurses across seven colleges in the Busan Metropolitan City were enrolled in the study. The participants completed a structured questionnaire containing items about their learning satisfaction with different types of pediatric nursing practicums and their clinical competence. Data were analyzed using the mean, standard deviation, independent t-test, ANOVA, and multiple regression analysis. Results: Regarding satisfaction with each type of clinical practicum, the mean satisfaction score (out of 10) was 8.18±2.26 for on-site clinical rotations and 7.35±2.20 for alternative practicums. Among the different types of alternative practicum approaches, those with a satisfaction score of 7 or higher included fundamental nursing skills, watching videos, simulation etc., while those with a satisfaction score of less than 6 were virtual simulation and problem-based learning. The predictors of clinical competence in pediatric nursing were learning satisfaction with practice, school year, and alternative practicum, accounting for 35.0% of the variance in clinical competency. Conclusion: It would be helpful to combine on-site clinical rotations with alternative practicum approaches and to develop various alternative practice programs using simulation practice, virtual reality, immersive interactive systems, and standardized patients to enhance students' clinical competency.

• 융합정보논문지
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• 제10권8호
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• pp.239-249
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• 2020

본 연구는 미용전공 졸업생 205명을 대상으로 미용교육과정 인식이 현장활용성, 직무활용도, 직무만족도에 미치는 영향을 알아보고 전공별 각 요인들의 차이를 분석하는 것을 연구목적으로 설문을 진행하였다. 연구결과 피부는 실습, 기타 전공은 기술적인 면, 실기 테크닉 및 현장감 있는 교육에 대한 요구가 가장 많았고, 모든 전공이 이론<실습 형태의 교육과정, 실습 위주 수업을 요구하였다. 미용교육과정 인식 및 현장활용성이 낮게 나타났고 자격증 교육과정, 직무활용도 및 직무만족도 인식이 낮게 나타났다. 미용교육과정 인식이 현장활용성에 유의한 정(+)의 영향을 나타냈고(p<0.001), 교육내용은 직무활용도 하위요인과 직무만족도에 유의한 정(+)의 영향을 나타냈다(p<0.001). 결론적으로 모든 전공에서 현장활용성, 직무활용도 및 만족도를 높이기 위해 실기교육 보완, 실습 비율 증가 등 교육과정 내용을 개선할 필요성이 있는 것을 알 수 있었다.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2008년도 춘계학술대회
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• pp.493-517
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• 2008

The purpose of this research is to identify effect of communication strategy as effectively communication method which is decreasing Internet Web site users' perceived information privacy concerns as important factor affecting to positive behavior or behavioral intentions on long-term relational outcome perspectives. This study suggests alternatives concepts and causal relationship about information privacy issues. First, it addressed collaborative communication strategy (CCS) model of effective communication method for Web site's IPP to users. Second, it provided comparing and integrating streams of information privacy research on long-term relational outcomes perspective. Third, it assessed effectiveness of Web site's IPP on organization legitimacy ensured continuous survival of organization. A research model was proposed and subsequent hypotheses were empirically tested with partial least square (PLS) based on 684 responses from the users of 21 Internet Website among entirely finance, recruit, portal /e-store Web site. It was learned that CCS(as a communication method) and relationship quality(representing long-term relational outcomes)was positively associated with decreasing user's IPC more than privacy risk. Also, legitimacy to information privacy practice positively associated with willingness to information providing more than negative effect of IPC. Lastly, their association strength was partially moderated by the type of real information sensitivity.

• Journal of Construction Engineering and Project Management
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• 제10권1호
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• pp.16-32
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• 2020

Cost and time control of projects is important in preventing project failure. However, achieving effective cost and time control in practice is often challenging. The challenges of project cost and time control in practice are investigated by carrying out a questionnaire survey on the top 150 construction contractors in the UK followed by in-depth semi-structured interviews of practitioners from 15 construction companies in the country. Quantitative analysis reveals that design change is the most important factor inhibiting the ability of UK contractors from effectively controlling both the cost and time of construction projects. Four of the top five factors inhibiting effective cost control are also the top factors inhibiting effective time control albeit in a different order. These top factors-design changes, inaccurate evaluation of project time/duration, risk and uncertainty, non-performance of subcontractors and nominated suppliers were also found to be endogenous factors to the project. Additionally, qualitative analysis of the interviews reveals 16 key challenges to prevent for effective project cost and time control in practice. These are classified into four categorised based on where they stem from as follows; from the organisation (1. Lack of integration of cost and time during project control, 2. lack of management buy-in, 3. complicated project control systems and processes, 4. lack of a project control training regime); from the construction management/project management approach (5. Lapses in integration of interfaces, 6. project control not being implemented from the early stages of a project, 7. inefficient utilisation and control of labour, 8. limited time devoted to planning how a project will be controlled at the outset); from the client; (9. Excessive authorisation gates, 10. use of adversarial and non-collaborative forms of contracts, 11. communication problems within client set-up, 12. obstructive client representatives) and; from the project team (13. Lack of detailed/complete design, 14. lack of trust among the project partners, 15. limited time devoted to project control on site, 16. non-factual reporting). The study posits that knowledge of these project control inhibiting factors and challenges is the first step at ensuring they are avoided and enable the implementation of a more effective project cost and time control process in practice.

• 한국엔터테인먼트산업학회논문지
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• 제13권7호
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• pp.135-143
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• 2019

본 연구는 영화 현장에 실습 중심의 대학 교육의 현황과 그에 대한 환경을 분석하고 수요자인 학생의 만족도를 상황 분석 차원에 조사 분석한 후, 새로운 또는 개선된 실무 중심 실습 교육의 효과적 발전 방안을 제언하고 있다. 최근 학령인구의 급격히 감소하는 교육 상황에서 주입식 교육의 새로운 돌파구의 일환으로 예술 교육의 도입, 현장 자율 학습, 실무 중심의 실험실습 등의 교육에 대한 학생들의 만족도가 높아지고 있는 것이 현실이다. 그런데 트렌드에 비해 실무 교육과 창의적인 교육의 프로그램이 많이 부족한 것이 현실이다 본 연구 논문은 영화 영상 제작에서 나타는 제작 실습을 중심으로 수요자인 학생들의 만족 패턴과 교육 프로그램을 조사·연구하여 패러다임을 구축하고자 한다. 또한 패러다임 구축을 통하여 교육의 효과적인 발전 방안을 분석, 연구, 돌출하고 그 방안을 토대로 영상 제작 교육에 대한 방향을 제시하고자 한다.